-Libpng 1.6.13 - August 21, 2014
+Libpng 1.6.21 - January 15, 2016
This is a public release of libpng, intended for use in production codes.
Source files with LF line endings (for Unix/Linux) and with a
"configure" script
- libpng-1.6.13.tar.xz (LZMA-compressed, recommended)
- libpng-1.6.13.tar.gz
+ libpng-1.6.21.tar.xz (LZMA-compressed, recommended)
+ libpng-1.6.21.tar.gz
Source files with CRLF line endings (for Windows), without the
"configure" script
- lpng1613.7z (LZMA-compressed, recommended)
- lpng1613.zip
+ /scratch/glennrp/Libpng16/lpng1621.7z (LZMA-compressed, recommended)
+ /scratch/glennrp/Libpng16/lpng1621.zip
Other information:
- libpng-1.6.13-README.txt
- libpng-1.6.13-LICENSE.txt
- libpng-1.6.13-*.asc (armored detached GPG signatures)
-
-Changes since the last public release (1.6.12):
-
- Quieted -Wsign-compare and -Wclobber compiler warnings in
- contrib/pngminus/*.c
- Added "(void) png_ptr;" where needed in contrib/gregbook to quiet
- compiler complaints about unused pointers.
- Split a long output string in contrib/gregbook/rpng2-x.c.
- Added "PNG_SET_OPTION" requirement for sRGB chunk support to pnglibconf.dfa,
- Needed for write-only support (John Bowler).
- Changed "if defined(__ARM_NEON__)" to
- "if (defined(__ARM_NEON__) || defined(__ARM_NEON))" (James Wu).
- Fixed clang no-warning builds: png_digit was defined but never used.
- Fixed an incorrect separator ("/" should be "\") in scripts/makefile.vcwin32
- (bug report from Wolfgang S. Kechel). Bug was introduced in libpng-1.6.11.
- Also fixed makefile.bc32, makefile.bor, makefile.msc, makefile.intel, and
- makefile.tc3 similarly.
- Removed scripts/makefile.elf. It has not worked since libpng-1.5.0beta14
- due to elimination of the PNG_FUNCTION_EXPORT and PNG_DATA_EXPORT
- definitions from pngconf.h.
- Ensure that CMakeLists.txt makes the target "lib" directory before making
- symbolic link into it (SourceForge bug report #226 by Rolf Timmermans).
- Added opinion that the ECCN (Export Control Classification Number) for
- libpng is EAR99 to the README file.
- Eliminated use of "$<" in makefile explicit rules, when copying
- $PNGLIBCONF_H_PREBUILT. This does not work on some versions of make;
- bug introduced in libpng version 1.6.11.
- Made "ccopts" agree with "CFLAGS" in scripts/makefile.hp* and makefile.*sunu
+ libpng-1.6.21-README.txt
+ libpng-1.6.21-LICENSE.txt
+ libpng-1.6.21-*.asc (armored detached GPG signatures)
+
+Changes since the last public release (1.6.20):
+
+ Fixed syntax "$(command)" in tests/pngstest that some shells other than
+ bash could not parse (Bug report by Nelson Beebe). Use `command` instead.
+ Moved png_check_keyword() from pngwutil.c to pngset.c
+ Removed LE/BE dependencies in pngvalid, to 'fix' the current problem
+ in the BigEndian tests by not testing it, making the BE code the same
+ as the LE version.
+ Fixes to pngvalid for various reduced build configurations (eliminate unused
+ statics) and a fix for the case in rgb_to_gray when the digitize option
+ reduces graylo to 0, producing a large error.
+ Widened the 'limit' check on the internally calculated error limits in
+ the 'DIGITIZE' case (the code used prior to 1.7 for rgb_to_gray error
+ checks) and changed the check to only operate in non-release builds
+ (base build type not RC or RELEASE.)
+ Fixed undefined behavior in pngvalid.c, undefined because
+ (png_byte) << shift is undefined if it changes the signed bit
+ (because png_byte is promoted to int). The libpng exported functions
+ png_get_uint_32 and png_get_uint_16 handle this. (Bug reported by
+ David Drysdale as a result of reports from UBSAN in clang 3.8).
+ This changes pngvalid to use BE random numbers; this used to produce
+ errors but these should not be fixed as a result of the previous changes.
+ In projects/vstudio, combined readme.txt and WARNING into README.txt
+ Relocated assert() in contrib/tools/pngfix.c, bug found by American
+ Fuzzy Lop, reported by Brian Carpenter.
+ Marked 'limit' UNUSED in transform_range_check(). This only affects
+ release builds.
+ Worked around a false-positive Coverity issue in pngvalid.c.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit
-
+#if 0
CHANGES - changes for libpng
-Version 0.2
+version 0.1 [March 29, 1995]
+ initial work-in-progress release
+
+version 0.2 [April 1, 1995]
added reader into png.h
fixed small problems in stub file
-Version 0.3
+version 0.3 [April 8, 1995]
added pull reader
split up pngwrite.c to several files
added pnglib.txt
fixed some bugs in writer
interfaced with zlib 0.5
added K&R support
- added check for 64 KB blocks for 16-bit machines
+ added check for 64 KB blocks for 16 bit machines
-Version 0.4
+version 0.4 [April 26, 1995]
cleaned up code and commented code
simplified time handling into png_time
created png_color_16 and png_color_8 to handle color needs
cleaned up zTXt reader and writer (using zlib's Reset functions)
split transformations into pngrtran.c and pngwtran.c
-Version 0.5
+version 0.5 [April 30, 1995]
interfaced with zlib 0.8
fixed many reading and writing bugs
saved using 3 spaces instead of tabs
-Version 0.6
+version 0.6 [May 1, 1995]
+ first beta release
added png_large_malloc() and png_large_free()
added png_size_t
cleaned up some compiler warnings
added png_start_read_image()
-Version 0.7
+version 0.7 [June 24, 1995]
cleaned up lots of bugs
finished dithering and other stuff
added test program
changed name from pnglib to libpng
-Version 0.71 [June, 1995]
+version 0.71 [June 26, 1995]
changed pngtest.png for zlib 0.93
fixed error in libpng.txt and example.c
-Version 0.8
+version 0.8 [August 20, 1995]
cleaned up some bugs
added png_set_filler()
split up pngstub.c into pngmem.c, pngio.c, and pngerror.c
cleaned up documentation
added callbacks for read/write and warning/error functions
-Version 0.89 [July, 1996]
+Version 0.89 [June 5, 1996]
Added new initialization API to make libpng work better with shared libs
we now have png_create_read_struct(), png_create_write_struct(),
png_create_info_struct(), png_destroy_read_struct(), and
New pngtest image also has interlacing and zTXt
Updated documentation to reflect new API
+Version 0.89c [June 17, 1996]
+ Bug fixes.
+
Version 0.90 [January, 1997]
Made CRC errors/warnings on critical and ancillary chunks configurable
libpng will use the zlib CRC routines by (compile-time) default
Added new pCAL chunk read/write support
Added experimental filter selection weighting (Greg Roelofs)
Removed old png_set_rgbx() and png_set_xrgb() functions that have been
- obsolete for about 2 years now (use png_set_filler() instead)
+ obsolete for about 2 years now (use png_set_filler() instead)
Added macros to read 16- and 32-bit ints directly from buffer, to be
used only on those systems that support it (namely PowerPC and 680x0)
With some testing, this may become the default for MACOS/PPC systems.
Version 1.0.3a [August 12, 1999]
Added check for PNG_READ_INTERLACE_SUPPORTED in pngread.c; issue a warning
- if an attempt is made to read an interlaced image when it's not supported.
+ if an attempt is made to read an interlaced image when it's not supported.
Added check if png_ptr->trans is defined before freeing it in pngread.c
Modified the Y2K statement to include versions back to version 0.71
Fixed a bug in the check for valid IHDR bit_depth/color_types in pngrutil.c
Replaced leading blanks with tab characters in makefile.hux
Changed "dworkin.wustl.edu" to "ccrc.wustl.edu" in various documents.
Changed (float)red and (float)green to (double)red, (double)green
- in png_set_rgb_to_gray() to avoid "promotion" problems in AIX.
+ in png_set_rgb_to_gray() to avoid "promotion" problems in AIX.
Fixed a bug in pngconf.h that omitted <stdio.h> when PNG_DEBUG==0 (K Bracey).
Reformatted libpng.3 and libpngpf.3 with proper fonts (script by J. vanZandt).
Updated documentation to refer to the PNG-1.2 specification.
Added new png_expand functions to scripts/pngdef.pas and pngos2.def
Added a demo read_user_transform_fn that examines the row filters in pngtest.c
-Version 1.0.4 [September 24, 1999]
+Version 1.0.4 [September 24, 1999, not distributed publicly]
Define PNG_ALWAYS_EXTERN in pngconf.h if __STDC__ is defined
Delete #define PNG_INTERNAL and include "png.h" from pngasmrd.h
Made several minor corrections to pngtest.c
Added a "png_check_version" function in png.c and pngtest.c that will generate
a helpful compiler error if an old png.h is found in the search path.
Changed type of png_user_transform_depth|channels from int to png_byte.
+ Added "Libpng is OSI Certified Open Source Software" statement to png.h
Version 1.0.4d [October 6, 1999]
Changed 0.45 to 0.45455 in png_set_sRGB()
Version 1.0.8beta1 [July 8, 2000]
Added png_free(png_ptr, key) two places in pngpread.c to stop memory leaks.
Changed PNG_NO_STDIO to PNG_NO_CONSOLE_IO, several places in pngrutil.c and
- pngwutil.c.
+ pngwutil.c.
Changed PNG_EXPORT_VAR to use PNG_IMPEXP, in pngconf.h.
Removed unused "#include <assert.h>" from png.c
Added WindowsCE support.
Version 1.0.8beta2 [July 10, 2000]
Added project files to the wince directory and made further revisions
- of pngtest.c, pngrio.c, and pngwio.c in support of WindowsCE.
+ of pngtest.c, pngrio.c, and pngwio.c in support of WindowsCE.
Version 1.0.8beta3 [July 11, 2000]
Only set the PNG_FLAG_FREE_TRNS or PNG_FREE_TRNS flag in png_handle_tRNS()
- for indexed-color input files to avoid potential double-freeing trans array
- under some unusual conditions; problem was introduced in version 1.0.6f.
+ for indexed-color input files to avoid potential double-freeing trans array
+ under some unusual conditions; problem was introduced in version 1.0.6f.
Further revisions to pngtest.c and files in the wince subdirectory.
Version 1.0.8beta4 [July 14, 2000]
Version 1.2.0beta4 [June 23, 2001]
Check for missing profile length field in iCCP chunk and free chunk_data
- in case of truncated iCCP chunk.
+ in case of truncated iCCP chunk.
Bumped shared-library number to 3 in makefile.sgi and makefile.sggcc
Bumped dll-number from 2 to 3 in makefile.cygwin
Revised contrib/gregbook/rpng*-x.c to avoid a memory leak and to exit cleanly
- if user attempts to run it on an 8-bit display.
+ if user attempts to run it on an 8-bit display.
Updated contrib/gregbook
Use png_malloc instead of png_zalloc to allocate palette in pngset.c
Updated makefile.ibmc
Added some typecasts to eliminate gcc 3.0 warnings. Changed prototypes
- of png_write_oFFS width and height from png_uint_32 to png_int_32.
+ of png_write_oFFS width and height from png_uint_32 to png_int_32.
Updated example.c
Revised prototypes for png_debug_malloc and png_debug_free in pngtest.c
Revised contrib/gregbook
Revised makefile.gcmmx
Revised pnggccrd.c to conditionally compile some thread-unsafe code only
- when PNG_THREAD_UNSAFE_OK is defined.
+ when PNG_THREAD_UNSAFE_OK is defined.
Added tests to prevent pngwutil.c from writing a bKGD or tRNS chunk with
- value exceeding 2^bit_depth-1
+ value exceeding 2^bit_depth-1
Revised makefile.sgi and makefile.sggcc
Replaced calls to fprintf(stderr,...) with png_warning() in pnggccrd.c
Removed restriction that do_invert_mono only operate on 1-bit opaque files
Use png_malloc instead of png_zalloc to allocate the pallete.
Version 1.0.16rc1 and 1.2.6rc1 [August 4, 2004]
- Fixed buffer overflow vulnerability in png_handle_tRNS()
- Fixed integer arithmetic overflow vulnerability in png_read_png().
+ Fixed buffer overflow vulnerability (CVE-2004-0597) in png_handle_tRNS().
+ Fixed NULL dereference vulnerability (CVE-2004-0598) in png_handle_iCCP().
+ Fixed integer overflow vulnerability (CVE-2004-0599) in png_read_png().
Fixed some harmless bugs in png_handle_sBIT, etc, that would cause
duplicate chunk types to go undetected.
Fixed some timestamps in the -config version
Version 1.0.16rc5 and 1.2.6rc5 [August 10, 2004]
Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_ASSEMBLER_CODE_SUPPORTED
- section of png.h where they were inadvertently placed in version rc3.
+ section of png.h where they were inadvertently placed in version rc3.
Version 1.2.6 and 1.0.16 [August 15, 2004]
Revised pngtest so memory allocation testing is only done when PNG_DEBUG==1.
png_decompress_chunk(), and remove "chunkdata" from parameter list.
Put a call to png_check_chunk_name() in png_read_chunk_header().
Revised png_check_chunk_name() to reject a name with a lowercase 3rd byte.
- Removed two calls to png_check_chunk_name() occuring later in the process.
+ Removed two calls to png_check_chunk_name() occurring later in the process.
Define PNG_NO_ERROR_NUMBERS by default in pngconf.h
Version 1.4.0beta25 [July 30, 2008]
Version 1.4.0beta64 [June 24, 2009]
Eliminated PNG_LEGACY_SUPPORTED code.
Moved the various unknown chunk macro definitions outside of the
- PNG_READ|WRITE_ANCILLARY_CHUNK_SUPPORTED blocks.
+ PNG_READ|WRITE_ANCILLARY_CHUNK_SUPPORTED blocks.
Version 1.4.0beta65 [June 26, 2009]
Added a reference to the libpng license in each file.
Version 1.5.7beta05 [November 25, 2011]
Removed "zTXt" from warning in generic chunk decompression function.
- Validate time settings passed to pngset() and png_convert_to_rfc1123()
- (Frank Busse).
+ Validate time settings passed to png_set_tIME() and png_convert_to_rfc1123()
+ (Frank Busse). Note: This prevented CVE-2015-7981 from affecting
+ libpng-1.5.7 and later.
Added MINGW support to CMakeLists.txt
Reject invalid compression flag or method when reading the iTXt chunk.
Backed out 'simplified' API changes. The API seems too complex and there
(the other two required headers aren't used). Non-ANSI systems that don't
have stddef.h or limits.h will have to provide an appropriate fake
containing the relevant types and #defines.
- The use of FAR/far has been eliminated and the definition of png_alloc_size_t
- is now controlled by a flag so that 'small size_t' systems can select it
- if necessary. Libpng 1.6 may not currently work on such systems -- it
- seems likely that it will ask 'malloc' for more than 65535 bytes with any
- image that has a sufficiently large row size (rather than simply failing
- to read such images).
+ Dropped support for 16-bit platforms. The use of FAR/far has been eliminated
+ and the definition of png_alloc_size_t is now controlled by a flag so
+ that 'small size_t' systems can select it if necessary. Libpng 1.6 may
+ not currently work on such systems -- it seems likely that it will
+ ask 'malloc' for more than 65535 bytes with any image that has a
+ sufficiently large row size (rather than simply failing to read such
+ images).
New tools directory containing tools used to generate libpng code.
Fixed race conditions in parallel make builds. With higher degrees of
parallelism during 'make' the use of the same temporary file names such
Version 1.6.1beta03 [February 22, 2013]
Fixed ALIGNED_MEMORY support.
- Allow run-time ARM NEON checking to be disabled. A new configure option:
+ Added a new configure option:
--enable-arm-neon=always will stop the run-time checks. New checks
within arm/arm_init.c will cause the code not to be compiled unless
__ARM_NEON__ is set. This should make it fail safe (if someone asks
Version 1.6.1beta06 [March 4, 2013]
Better documentation of unknown handling API interactions.
Corrected Android builds and corrected libpng.vers with symbol
- prefixing This adds an API to set optimization options externally,
+ prefixing. It also makes those tests compile and link on Android.
+ Added an API png_set_option() to set optimization options externally,
providing an alternative and general solution for the non-portable
- run-time tests used by the ARM Neon code. It also makes those tests
- compile and link on Android.
+ run-time tests used by the ARM Neon code, using the PNG_ARM_NEON option.
The order of settings vs options in pnglibconf.h is reversed to allow
settings to depend on options and options can now set (or override) the
defaults for settings.
Expanded manual paragraph about writing private chunks, particularly
the need to call png_set_keep_unknown_chunks() when writing them.
Avoid dereferencing NULL pointer possibly returned from
- png_create_write_struct() (Andrew Church).
+ png_create_write_struct() (Andrew Church).
Version 1.6.3beta05 [May 9, 2013]
Calculate our own zlib windowBits when decoding rather than trusting the
CMF bytes in the PNG datastream.
Added an option to force maximum window size for inflating, which was
- the behavior of libpng15 and earlier.
+ the behavior of libpng15 and earlier, via a new PNG_MAXIMUM_INFLATE_WINDOW
+ option for png_set_options().
Added png-fix-itxt and png-fix-too-far-back to the built programs and
removed warnings from the source code and timepng that are revealed as
a result.
Version 1.6.13 [August 21, 2014]
No changes.
+Version 1.6.14beta01 [September 14, 2014]
+ Guard usage of png_ptr->options with #ifdef PNG_SET_OPTION_SUPPORTED.
+ Do not build contrib/tools/pngfix.c when PNG_SETJMP_NOT_SUPPORTED,
+ to allow "make" to complete without setjmp support (bug report by
+ Claudio Fontana)
+ Add "#include <setjmp.h>" to contrib/tools/pngfix.c (John Bowler)
+
+Version 1.6.14beta02 [September 18, 2014]
+ Use nanosleep() instead of usleep() in contrib/gregbook/rpng2-x.c
+ because usleep() is deprecated.
+ Define usleep() in contrib/gregbook/rpng2-x.c if not already defined
+ in unistd.h and nanosleep() is not available; fixes error introduced
+ in libpng-1.6.13.
+ Disable floating point exception handling in pngvalid.c when
+ PNG_FLOATING_ARITHMETIC is not supported (bug report by "zootus
+ at users.sourceforge.net").
+
+Version 1.6.14beta03 [September 19, 2014]
+ Define FE_DIVBYZERO, FE_INVALID, and FE_OVERFLOW in pngvalid.c if not
+ already defined. Revert floating point exception handling in pngvalid.c
+ to version 1.6.14beta01 behavior.
+
+Version 1.6.14beta04 [September 27, 2014]
+ Fixed incorrect handling of the iTXt compression flag in pngrutil.c
+ (bug report by Shunsaku Hirata). Bug was introduced in libpng-1.6.0.
+
+Version 1.6.14beta05 [October 1, 2014]
+ Added "option READ_iCCP enables READ_COMPRESSED_TEXT" to pnglibconf.dfa
+
+Version 1.6.14beta06 [October 5, 2014]
+ Removed unused "text_len" parameter from private function png_write_zTXt().
+ Conditionally compile some code in png_deflate_claim(), when
+ PNG_WARNINGS_SUPPORTED and PNG_ERROR_TEXT_SUPPORTED are disabled.
+ Replaced repeated code in pngpread.c with PNG_PUSH_SAVE_BUFFER_IF_FULL.
+ Added "chunk iTXt enables TEXT" and "chunk zTXt enables TEXT"
+ to pnglibconf.dfa.
+ Removed "option READ_COMPRESSED_TEXT enables READ_TEXT" from pnglibconf.dfa,
+ to make it possible to configure a libpng that supports iCCP but not TEXT.
+
+Version 1.6.14beta07 [October 7, 2014]
+ Removed "option WRITE_COMPRESSED_TEXT enables WRITE_TEXT" from pnglibconf.dfa
+ Only mark text chunks as written after successfully writing them.
+
+Version 1.6.14rc01 [October 15, 2014]
+ Fixed some typos in comments.
+
+Version 1.6.14rc02 [October 17, 2014]
+ Changed png_convert_to_rfc_1123() to png_convert_to_rfc_1123_buffer()
+ in the manual, to reflect the change made in libpng-1.6.0.
+ Updated README file to explain that direct access to the png_struct
+ and info_struct members has not been permitted since libpng-1.5.0.
+
+Version 1.6.14 [October 23, 2014]
+ No changes.
+
+Version 1.6.15beta01 [October 29, 2014]
+ Changed "if (!x)" to "if (x == 0)" and "if (x)" to "if (x != 0)"
+ Simplified png_free_data().
+ Added missing "ptr = NULL" after some instances of png_free().
+
+Version 1.6.15beta02 [November 1, 2014]
+ Changed remaining "if (!x)" to "if (x == 0)" and "if (x)" to "if (x != 0)"
+
+Version 1.6.15beta03 [November 3, 2014]
+ Added PNG_USE_ARM_NEON configuration flag (Marcin Juszkiewicz).
+
+Version 1.6.15beta04 [November 4, 2014]
+ Removed new PNG_USE_ARM_NEON configuration flag and made a one-line
+ revision to configure.ac to support ARM on aarch64 instead (John Bowler).
+
+Version 1.6.15beta05 [November 5, 2014]
+ Use png_get_libpng_ver(NULL) instead of PNG_LIBPNG_VER_STRING in
+ example.c, pngtest.c, and applications in the contrib directory.
+ Avoid out-of-bounds memory access in png_user_version_check().
+ Simplified and future-proofed png_user_version_check().
+ Fixed GCC unsigned int->float warnings. Various versions of GCC
+ seem to generate warnings when an unsigned value is implicitly
+ converted to double. This is probably a GCC bug but this change
+ avoids the issue by explicitly converting to (int) where safe.
+ Free all allocated memory in pngimage. The file buffer cache was left
+ allocated at the end of the program, harmless but it causes memory
+ leak reports from clang.
+ Fixed array size calculations to avoid warnings. At various points
+ in the code the number of elements in an array is calculated using
+ sizeof. This generates a compile time constant of type (size_t) which
+ is then typically assigned to an (unsigned int) or (int). Some versions
+ of GCC on 64-bit systems warn about the apparent narrowing, even though
+ the same compiler does apparently generate the correct, in-range,
+ numeric constant. This adds appropriate, safe, casts to make the
+ warnings go away.
+
+Version 1.6.15beta06 [November 6, 2014]
+ Reverted use png_get_libpng_ver(NULL) instead of PNG_LIBPNG_VER_STRING
+ in the manual, example.c, pngtest.c, and applications in the contrib
+ directory. It was incorrect advice.
+
+Version 1.6.15beta07 [November 7, 2014]
+ Removed #ifdef PNG_16BIT_SUPPORTED/#endif around png_product2(); it is
+ needed by png_reciprocal2().
+ Added #ifdef PNG_16BIT_SUPPORTED/#endif around png_log16bit() and
+ png_do_swap().
+ Changed all "#endif /* PNG_FEATURE_SUPPORTED */" to "#endif /* FEATURE */"
+
+Version 1.6.15beta08 [November 8, 2014]
+ More housecleaning in *.h
+
+Version 1.6.15rc01 [November 13, 2014]
+
+Version 1.6.15rc02 [November 14, 2014]
+ The macros passed in the command line to Borland make were ignored if
+ similarly-named macros were already defined in makefiles. This behavior
+ is different from POSIX make and other make programs. Surround the
+ macro definitions with ifndef guards (Cosmin).
+
+Version 1.6.15rc03 [November 16, 2014]
+ Added "-D_CRT_SECURE_NO_WARNINGS" to CFLAGS in scripts/makefile.vcwin32.
+ Removed the obsolete $ARCH variable from scripts/makefile.darwin.
+
+Version 1.6.15 [November 20, 2014]
+ No changes.
+
+Version 1.6.16beta01 [December 14, 2014]
+ Added ".align 2" to arm/filter_neon.S to support old GAS assemblers that
+ don't do alignment correctly.
+ Revised Makefile.am and scripts/symbols.dfn to work with MinGW/MSYS
+ (Bob Friesenhahn).
+
+Version 1.6.16beta02 [December 15, 2014]
+ Revised Makefile.am and scripts/*.dfn again to work with MinGW/MSYS;
+ renamed scripts/*.dfn to scripts/*.c (John Bowler).
+
+Version 1.6.16beta03 [December 21, 2014]
+ Quiet a "comparison always true" warning in pngstest.c (John Bowler).
+
+Version 1.6.16rc01 [December 21, 2014]
+ Restored a test on width that was removed from png.c at libpng-1.6.9
+ (Bug report by Alex Eubanks, CVE-2015-0973).
+
+Version 1.6.16rc02 [December 21, 2014]
+ Undid the update to pngrutil.c in 1.6.16rc01.
+
+Version 1.6.16rc03 [December 21, 2014]
+ Fixed an overflow in png_combine_row() with very wide interlaced images
+ (Bug report and fix by John Bowler, CVE-2014-9495).
+
+Version 1.6.16 [December 22, 2014]
+ No changes.
+
+Version 1.6.17beta01 [January 29, 2015]
+ Removed duplicate PNG_SAFE_LIMITS_SUPPORTED handling from pngconf.h
+ Corrected the width limit calculation in png_check_IHDR().
+ Removed user limits from pngfix. Also pass NULL pointers to
+ png_read_row to skip the unnecessary row de-interlace stuff.
+ Added testing of png_set_packing() to pngvalid.c
+ Regenerated configure scripts in the *.tar distributions with libtool-2.4.4
+ Implement previously untested cases of libpng transforms in pngvalid.c
+ Fixed byte order in png_do_read_filler() with 16-bit input. Previously
+ the high and low bytes of the filler, from png_set_filler() or from
+ png_set_add_alpha(), were read in the wrong order.
+ Made the check for out-of-range values in png_set_tRNS() detect
+ values that are exactly 2^bit_depth, and work on 16-bit platforms.
+ Merged some parts of libpng-1.6.17beta01 and libpng-1.7.0beta47.
+ Added #ifndef __COVERITY__ where needed in png.c, pngrutil.c and
+ pngset.c to avoid warnings about dead code.
+ Added "& 0xff" to many instances of expressions that are typecast
+ to (png_byte), to avoid Coverity warnings.
+
+Version 1.6.17beta02 [February 7, 2015]
+ Work around one more Coverity-scan dead-code warning.
+ Do not build png_product2() when it is unused.
+
+Version 1.6.17beta03 [February 17, 2015]
+ Display user limits in the output from pngtest.
+ Eliminated the PNG_SAFE_LIMITS macro and restored the 1-million-column
+ and 1-million-row default limits in pnglibconf.dfa, that can be reset
+ by the user at build time or run time. This provides a more robust
+ defense against DOS and as-yet undiscovered overflows.
+
+Version 1.6.17beta04 [February 21, 2015]
+ Added PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED macro, on by default.
+ Allow user to call png_get_IHDR() with NULL arguments (Reuben Hawkins).
+ Rebuilt configure scripts with automake-1.15 and libtool-2.4.6
+
+Version 1.6.17beta05 [February 25, 2015]
+ Restored compiling of png_reciprocal2 with PNG_NO_16BIT.
+
+Version 1.6.17beta06 [February 27, 2015]
+ Moved png_set_filter() prototype into a PNG_WRITE_SUPPORTED block
+ of png.h.
+ Avoid runtime checks when converting integer to png_byte with
+ Visual Studio (Sergey Kosarevsky)
+
+Version 1.6.17rc01 [March 4, 2015]
+ No changes.
+
+Version 1.6.17rc02 [March 9, 2015]
+ Removed some comments that the configure script did not handle
+ properly from scripts/pnglibconf.dfa and pnglibconf.h.prebuilt.
+ Free the unknown_chunks structure even when it contains no data.
+
+Version 1.6.17rc03 [March 12, 2015]
+ Updated CMakeLists.txt to add OSX framework, change YES/NO to ON/OFF
+ for consistency, and remove some useless tests (Alexey Petruchik).
+
+Version 1.6.17rc04 [March 16, 2015]
+ Remove pnglibconf.h, pnglibconf.c, and pnglibconf.out instead of
+ pnglibconf.* in "make clean" (Cosmin).
+ Fix bug in calculation of maxbits, in png_write_sBIT, introduced
+ in libpng-1.6.17beta01 (John Bowler).
+
+Version 1.6.17rc05 [March 21, 2015]
+ Define PNG_FILTER_* and PNG_FILTER_VALUE_* in png.h even when WRITE
+ is not supported (John Bowler). This fixes an error introduced in
+ libpng-1.6.17beta06.
+ Reverted "& 0xff" additions of version 1.6.17beta01. Libpng passes
+ the Coverity scan without them.
+
+Version 1.6.17rc06 [March 23, 2015]
+ Remove pnglibconf.dfn and pnglibconf.pre with "make clean".
+ Reformatted some "&0xff" instances to "& 0xff".
+ Fixed simplified 8-bit-linear to sRGB alpha. The calculated alpha
+ value was wrong. It's not clear if this affected the final stored
+ value; in the obvious code path the upper and lower 8-bits of the
+ alpha value were identical and the alpha was truncated to 8-bits
+ rather than dividing by 257 (John Bowler).
+
+Version 1.6.17 [March 26, 2015]
+ No changes.
+
+Version 1.6.18beta01 [April 1, 2015]
+ Removed PNG_SET_CHUNK_[CACHE|MALLOC]_LIMIT_SUPPORTED macros. They
+ have been combined with PNG_SET_USER_LIMITS_SUPPORTED (resolves
+ bug report by Andrew Church).
+ Fixed rgb_to_gray checks and added tRNS checks to pngvalid.c. This
+ fixes some arithmetic errors that caused some tests to fail on
+ some 32-bit platforms (Bug reports by Peter Breitenlohner [i686]
+ and Petr Gajdos [i586]).
+
+Version 1.6.18beta02 [April 26, 2015]
+ Suppressed some warnings from the Borland C++ 5.5.1/5.82 compiler
+ (Bug report by Viktor Szakats).
+
+Version 1.6.18beta03 [May 6, 2015]
+ Replaced "unexpected" with an integer (0xabadca11) in pngset.c
+ where a long was expected, to avoid a compiler warning when PNG_DEBUG > 1.
+ Added contrib/examples/simpleover.c, to demonstrate how to handle
+ alpha compositing of multiple images, using the "simplified API"
+ and an example PNG generation tool, contrib/examples/genpng.c
+ (John Bowler).
+
+Version 1.6.18beta04 [May 20, 2015]
+ PNG_RELEASE_BUILD replaces tests where the code depended on the build base
+ type and can be defined on the command line, allowing testing in beta
+ builds (John Bowler).
+ Avoid Coverity issue 80858 (REVERSE NULL) in pngtest.c PNG_DEBUG builds.
+ Avoid a harmless potential integer overflow in png_XYZ_from_xy() (Bug
+ report from Christopher Ferris).
+
+Version 1.6.18beta05 [May 31, 2015]
+ Backport filter selection code from libpng-1.7.0beta51, to combine
+ sub_row, up_row, avg_row, and paeth_row into try_row and tst_row.
+ Changed png_voidcast(), etc., to voidcast(), etc., in contrib/tools/pngfix.c
+ to avoid confusion with the libpng private macros.
+ Fixed old cut&paste bug in the weighted filter selection code in
+ pngwutil.c, introduced in libpng-0.95, March 1997.
+
+Version 1.6.18beta06 [June 1, 2015]
+ Removed WRITE_WEIGHTED_FILTERED code, to save a few kbytes of the
+ compiled library size. It never worked properly and as far as we can
+ tell, no one uses it. The png_set_filter_heuristics() and
+ png_set_filter_heuristics_fixed() APIs are retained but deprecated
+ and do nothing.
+
+Version 1.6.18beta07 [June 6, 2015]
+ Removed non-working progressive reader 'skip' function. This
+ function has apparently never been used. It was implemented
+ to support back-door modification of png_struct in libpng-1.4.x
+ but (because it does nothing and cannot do anything) was apparently
+ never tested (John Bowler).
+ Fixed cexcept.h in which GCC 5 now reports that one of the auto
+ variables in the Try macro needs to be volatile to prevent value
+ being lost over the setjmp (John Bowler).
+ Fixed NO_WRITE_FILTER and -Wconversion build breaks (John Bowler).
+ Fix g++ build breaks (John Bowler).
+ Quieted some Coverity issues in pngfix.c, png-fix-itxt.c, pngvalid.c,
+ pngstest.c, and pngimage.c. Most seem harmless, but png-fix-itxt
+ would only work with iTXt chunks with length 255 or less.
+ Added #ifdef's to contrib/examples programs so people don't try
+ to compile them without the minimum required support enabled
+ (suggested by Flavio Medeiros).
+
+Version 1.6.18beta08 [June 30, 2015]
+ Eliminated the final two Coverity defects (insecure temporary file
+ handling in contrib/libtests/pngstest.c; possible overflow of
+ unsigned char in contrib/tools/png-fix-itxt.c). To use the "secure"
+ file handling, define PNG_USE_MKSTEMP, otherwise "tmpfile()" will
+ be used.
+ Removed some unused WEIGHTED_FILTER macros from png.h and pngstruct.h
+
+Version 1.6.18beta09 [July 5, 2015]
+ Removed some useless typecasts from contrib/tools/png-fix-itxt.c
+ Fixed a new signed-unsigned comparison in pngrtran.c (Max Stepin).
+ Replaced arbitrary use of 'extern' with #define PNG_LINKAGE_*. To
+ preserve API compatibility, the new defines all default to "extern"
+ (requested by Jan Nijtmans).
+
+Version 1.6.18rc01 [July 9, 2015]
+ Belatedly added Mans Rullgard and James Yu to the list of Contributing
+ Authors.
+
+Version 1.6.18rc02 [July 12, 2015]
+ Restored unused FILTER_HEURISTIC macros removed at libpng-1.6.18beta08
+ to png.h to avoid compatibility warnings.
+
+Version 1.6.18rc03 [July 15, 2015]
+ Minor changes to the man page
+
+Version 1.6.18 [July 23, 2015]
+ No changes.
+
+Version 1.6.19beta01 [July 30, 2015]
+ Updated obsolete information about the simplified API macros in the
+ manual pages (Bug report by Arc Riley).
+ Avoid potentially dereferencing NULL info_ptr in png_info_init_3().
+ Rearranged png.h to put the major sections in the same order as
+ in libpng17.
+ Eliminated unused PNG_COST_SHIFT, PNG_WEIGHT_SHIFT, PNG_COST_FACTOR, and
+ PNG_WEIGHT_FACTOR macros.
+ Suppressed some warnings from the Borland C++ 5.5.1/5.82 compiler
+ (Bug report by Viktor Szakats). Several warnings remain and are
+ unavoidable, where we test for overflow.
+ Fixed potential leak of png_pixels in contrib/pngminus/pnm2png.c
+ Fixed uninitialized variable in contrib/gregbook/rpng2-x.c
+
+Version 1.6.19beta02 [August 19, 2015]
+ Moved config.h.in~ from the "libpng_autotools_files" list to the
+ "libpng_autotools_extra" list in autogen.sh because it was causing a
+ false positive for missing files (bug report by Robert C. Seacord).
+ Removed unreachable "break" statements in png.c, pngread.c, and pngrtran.c
+ to suppress clang warnings (Bug report by Viktor Szakats).
+ Fixed some bad links in the man page.
+ Changed "n bit" to "n-bit" in comments.
+ Added signed/unsigned 16-bit safety net. This removes the dubious
+ 0x8000 flag definitions on 16-bit systems. They aren't supported
+ yet the defs *probably* work, however it seems much safer to do this
+ and be advised if anyone, contrary to advice, is building libpng 1.6
+ on a 16-bit system. It also adds back various switch default clauses
+ for GCC; GCC errors out if they are not present (with an appropriately
+ high level of warnings).
+ Safely convert num_bytes to a png_byte in png_set_sig_bytes() (Robert
+ Seacord).
+ Fixed the recently reported 1's complement security issue by replacing
+ the value that is illegal in the PNG spec, in both signed and unsigned
+ values, with 0. Illegal unsigned values (anything greater than or equal
+ to 0x80000000) can still pass through, but since these are not illegal
+ in ANSI-C (unlike 0x80000000 in the signed case) the checking that
+ occurs later can catch them (John Bowler).
+
+Version 1.6.19beta03 [September 26, 2015]
+ Fixed png_save_int_32 when int is not 2's complement (John Bowler).
+ Updated libpng16 with all the recent test changes from libpng17,
+ including changes to pngvalid.c to ensure that the original,
+ distributed, version of contrib/visupng/cexcept.h can be used
+ (John Bowler).
+ pngvalid contains the correction to the use of SAVE/STORE_
+ UNKNOWN_CHUNKS; a bug revealed by changes in libpng 1.7. More
+ tests contain the --strict option to detect warnings and the
+ pngvalid-standard test has been corrected so that it does not
+ turn on progressive-read. There is a separate test which does
+ that. (John Bowler)
+ Also made some signed/unsigned fixes.
+ Make pngstest error limits version specific. Splitting the machine
+ generated error structs out to a file allows the values to be updated
+ without changing pngstest.c itself. Since libpng 1.6 and 1.7 have
+ slightly different error limits this simplifies maintenance. The
+ makepngs.sh script has also been updated to more accurately reflect
+ current problems in libpng 1.7 (John Bowler).
+ Incorporated new test PNG files into make check. tests/pngstest-*
+ are changed so that the new test files are divided into 8 groups by
+ gamma and alpha channel. These tests have considerably better code
+ and pixel-value coverage than contrib/pngsuite; however,coverage is
+ still incomplete (John Bowler).
+ Removed the '--strict' in 1.6 because of the double-gamma-correction
+ warning, updated pngstest-errors.h for the errors detected with the
+ new contrib/testspngs PNG test files (John Bowler).
+
+Version 1.6.19beta04 [October 15, 2015]
+ Worked around rgb-to-gray issues in libpng 1.6. The previous
+ attempts to ignore the errors in the code aren't quite enough to
+ deal with the 'channel selection' encoding added to libpng 1.7; abort.
+ pngvalid.c is changed to drop this encoding in prior versions.
+ Fixed 'pow' macros in pngvalid.c. It is legal for 'pow' to be a
+ macro, therefore the argument list cannot contain preprocessing
+ directives. Make sure pow is a function where this happens. This is
+ a minimal safe fix, the issue only arises in non-performance-critical
+ code (bug report by Curtis Leach, fix by John Bowler).
+ Added sPLT support to pngtest.c
+
+Version 1.6.19rc01 [October 23, 2015]
+ No changes.
+
+Version 1.6.19rc02 [October 31, 2015]
+ Prevent setting or writing over-length PLTE chunk (Cosmin Truta).
+ Silently truncate over-length PLTE chunk while reading.
+ Libpng incorrectly calculated the output rowbytes when the application
+ decreased either the number of channels or the bit depth (or both) in
+ a user transform. This was safe; libpng overallocated buffer space
+ (potentially by quite a lot; up to 4 times the amount required) but,
+ from 1.5.4 on, resulted in a png_error (John Bowler).
+
+Version 1.6.19rc03 [November 3, 2015]
+ Fixed some inconsequential cut-and-paste typos in png_set_cHRM_XYZ_fixed().
+ Clarified COPYRIGHT information to state explicitly that versions
+ are derived from previous versions.
+ Removed much of the long list of previous versions from png.h and
+ libpng.3.
+
+Version 1.6.19rc04 [November 5, 2015]
+ Fixed new bug with CRC error after reading an over-length palette
+ (bug report by Cosmin Truta) (CVE-2015-8126).
+
+Version 1.6.19 [November 12, 2015]
+ Cleaned up coding style in png_handle_PLTE().
+
+Version 1.6.20beta01 [November 20, 2015]
+ Avoid potential pointer overflow/underflow in png_handle_sPLT() and
+ png_handle_pCAL() (Bug report by John Regehr).
+
+Version 1.6.20beta02 [November 23, 2015]
+ Fixed incorrect implementation of png_set_PLTE() that uses png_ptr
+ not info_ptr, that left png_set_PLTE() open to the CVE-2015-8126
+ vulnerability. Fixes CVE-2015-8472.
+
+Version 1.6.20beta03 [November 24, 2015]
+ Backported tests from libpng-1.7.0beta69.
+
+Version 1.6.20rc01 [November 26, 2015]
+ Fixed an error in handling of bad zlib CMINFO field in pngfix, found by
+ American Fuzzy Lop, reported by Brian Carpenter. inflate() doesn't
+ immediately fault a bad CMINFO field; instead a 'too far back' error
+ happens later (at least some times). pngfix failed to limit CMINFO to
+ the allowed values but then assumed that window_bits was in range,
+ triggering an assert. The bug is mostly harmless; the PNG file cannot
+ be fixed.
+
+Version 1.6.20rc02 [November 29, 2015]
+ In libpng 1.6 zlib initialization was changed to use the window size
+ in the zlib stream, not a fixed value. This causes some invalid images,
+ where CINFO is too large, to display 'correctly' if the rest of the
+ data is valid. This provides a workaround for zlib versions where the
+ error arises (ones that support the API change to use the window size
+ in the stream).
+
+Version 1.6.20 [December 3, 2015]
+ No changes.
+
+Version 1.6.21beta01 [December 11, 2015]
+ Fixed syntax "$(command)" in tests/pngstest that some shells other than
+ bash could not parse (Bug report by Nelson Beebe). Use `command` instead.
+
+Version 1.6.21beta02 [December 14, 2015]
+ Moved png_check_keyword() from pngwutil.c to pngset.c
+ Removed LE/BE dependencies in pngvalid, to 'fix' the current problem
+ in the BigEndian tests by not testing it, making the BE code the same
+ as the LE version.
+ Fixes to pngvalid for various reduced build configurations (eliminate unused
+ statics) and a fix for the case in rgb_to_gray when the digitize option
+ reduces graylo to 0, producing a large error.
+
+Version 1.6.21beta03 [December 18, 2015]
+ Widened the 'limit' check on the internally calculated error limits in
+ the 'DIGITIZE' case (the code used prior to 1.7 for rgb_to_gray error
+ checks) and changed the check to only operate in non-release builds
+ (base build type not RC or RELEASE.)
+ Fixed undefined behavior in pngvalid.c, undefined because
+ (png_byte) << shift is undefined if it changes the signed bit
+ (because png_byte is promoted to int). The libpng exported functions
+ png_get_uint_32 and png_get_uint_16 handle this. (Bug reported by
+ David Drysdale as a result of reports from UBSAN in clang 3.8).
+ This changes pngvalid to use BE random numbers; this used to produce
+ errors but these should not be fixed as a result of the previous changes.
+
+Version 1.6.21rc01 [January 4, 2016]
+ In projects/vstudio, combined readme.txt and WARNING into README.txt
+
+Version 1.6.21rc02 [January 7, 2016]
+ Relocated assert() in contrib/tools/pngfix.c, bug found by American
+ Fuzzy Lop, reported by Brian Carpenter.
+ Marked 'limit' UNUSED in transform_range_check(). This only affects
+ release builds.
+
+Version 1.6.21 [January 15, 2016]
+ Worked around a false-positive Coverity issue in pngvalid.c.
+
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-implement
or to glennrp at users.sourceforge.net
Glenn R-P
+#endif
# CMakeLists.txt
-# Copyright (C) 2007-2014 Glenn Randers-Pehrson
+# Copyright (C) 2007-2015 Glenn Randers-Pehrson
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
set(PNGLIB_MAJOR 1)
set(PNGLIB_MINOR 6)
-set(PNGLIB_RELEASE 13)
+set(PNGLIB_RELEASE 21)
set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})
PATHS /usr/lib /usr/local/lib
)
if(NOT M_LIBRARY)
- message(STATUS
- "math library 'libm' not found - floating point support disabled")
+ message(STATUS "math lib 'libm' not found; floating point support disabled")
endif()
else()
# not needed on windows
endif()
# COMMAND LINE OPTIONS
-if(DEFINED PNG_SHARED)
- option(PNG_SHARED "Build shared lib" ${PNG_SHARED})
-else()
- option(PNG_SHARED "Build shared lib" ON)
-endif()
-if(DEFINED PNG_STATIC)
- option(PNG_STATIC "Build static lib" ${PNG_STATIC})
-else()
- option(PNG_STATIC "Build static lib" ON)
-endif()
-
-option(PNG_TESTS "Build libpng tests" YES)
+option(PNG_SHARED "Build shared lib" ON)
+option(PNG_STATIC "Build static lib" ON)
+option(PNG_TESTS "Build libpng tests" ON)
# Many more configuration options could be added here
-option(PNG_DEBUG "Build with debug output" NO)
-option(PNGARG "Disable ANSI-C prototypes" NO)
+option(PNG_FRAMEWORK "Build OS X framework" OFF)
+option(PNG_DEBUG "Build with debug output" OFF)
+option(PNGARG "Disable ANSI-C prototypes" OFF)
# SET LIBNAME
set(PNG_LIB_NAME png${PNGLIB_MAJOR}${PNGLIB_MINOR})
endif()
if(PNG_STATIC)
-# does not work without changing name
+ # does not work without changing name
set(PNG_LIB_NAME_STATIC ${PNG_LIB_NAME}_static)
add_library(${PNG_LIB_NAME_STATIC} STATIC ${libpng_sources})
list(APPEND PNG_LIB_TARGETS ${PNG_LIB_NAME_STATIC})
target_link_libraries(${PNG_LIB_NAME_STATIC} ${ZLIB_LIBRARY} ${M_LIBRARY})
endif()
+if(PNG_FRAMEWORK)
+ set(PNG_LIB_NAME_FRAMEWORK ${PNG_LIB_NAME}_framework)
+ add_library(${PNG_LIB_NAME_FRAMEWORK} SHARED ${libpng_sources})
+ list(APPEND PNG_LIB_TARGETS ${PNG_LIB_NAME_FRAMEWORK})
+ set_target_properties(${PNG_LIB_NAME_FRAMEWORK} PROPERTIES
+ FRAMEWORK TRUE
+ FRAMEWORK_VERSION ${PNGLIB_VERSION}
+ MACOSX_FRAMEWORK_SHORT_VERSION_STRING ${PNGLIB_MAJOR}.${PNGLIB_MINOR}
+ MACOSX_FRAMEWORK_BUNDLE_VERSION ${PNGLIB_VERSION}
+ MACOSX_FRAMEWORK_IDENTIFIER org.libpng.libpng
+ XCODE_ATTRIBUTE_INSTALL_PATH "@rpath"
+ PUBLIC_HEADER "${libpng_public_hdrs}"
+ OUTPUT_NAME png)
+ target_link_libraries(${PNG_LIB_NAME_FRAMEWORK} ${ZLIB_LIBRARY} ${M_LIBRARY})
+endif()
+
if(NOT PNG_LIB_TARGETS)
message(SEND_ERROR
"No library variant selected to build. "
- "Please enable at least one of the following options: PNG_STATIC, PNG_SHARED")
+ "Please enable at least one of the following options: "
+ " PNG_STATIC, PNG_SHARED, PNG_FRAMEWORK")
endif()
if(PNG_SHARED AND WIN32)
# SET UP LINKS
if(PNG_SHARED)
set_target_properties(${PNG_LIB_NAME} PROPERTIES
-# VERSION 16.${PNGLIB_RELEASE}.1.6.13
+# VERSION 16.${PNGLIB_RELEASE}.1.6.21
VERSION 16.${PNGLIB_RELEASE}.0
SOVERSION 16
CLEAN_DIRECT_OUTPUT 1)
${PNG_EXPORT_RULE}
RUNTIME DESTINATION bin
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
- ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+ ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+ FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR})
if(PNG_SHARED)
# Create a symlink for libpng.dll.a => libpng16.dll.a on Cygwin
XII. Configuring for compiler xxx:
XIII. Removing unwanted object code
XIV. Changes to the build and configuration of libpng in libpng-1.5.x
- XV. Configuring libpng for multiprocessing
- XVI. Other sources of information about libpng:
+ XV. Setjmp/longjmp issues
+ XVI. Other sources of information about libpng
I. Simple installation
where you want to install the libpng "lib", "include", and "bin"
subdirectories.
+If you downloaded a GIT clone, you will need to run ./autogen.sh before
+running ./configure, to create "configure" and "Makefile.in" which are
+not included in the GIT repository.
+
+Note that "configure" is only included in the "*.tar" distributions and not
+in the "*.zip" or "*.7z" distributions. If you downloaded one of those
+distributions, see "Building with project files" or "Building with makefiles",
+below.
+
II. Rebuilding the configure scripts
If configure does not work on your system, or if you have a need to
libpng (this directory)
INSTALL (this file)
README
- *.h
- *.c
+ *.h, *.c => libpng source files
CMakeLists.txt => "cmake" script
configuration files:
configure.ac, configure, Makefile.am, Makefile.in,
libpng-config.in, aclocal.m4, config.h.in, config.sub,
depcomp, install-sh, mkinstalldirs, test-pngtest.sh
contrib
- gregbook
- libtests
- pngminim
- pngminus
- pngsuite
- visupng
+ arm-neon, conftest, examples, gregbook, libtests, pngminim,
+ pngminus, pngsuite, tools, visupng
projects
- visualc71
- vstudio
+ cbuilder5, owatcom, visualc71, vstudio, xcode
scripts
makefile.*
*.def (module definition files)
pngtest.png
etc.
zlib
- README
- *.h
- *.c
- contrib
- etc.
+ README, *.h, *.c contrib, etc.
If the line endings in the files look funny, you may wish to get the other
distribution of libpng. It is available in both tar.gz (UNIX style line
VI. Building with project files
If you are building libpng with MSVC, you can enter the
-libpng projects\visualc6 or visualc71 directory and follow the instructions
+libpng projects\visualc71 or vstudio directory and follow the instructions
in README.txt.
Otherwise enter the zlib directory and follow the instructions in zlib/README,
VIII. Configuring libpng for 16-bit platforms
You will want to look into zconf.h to tell zlib (and thus libpng) that
-it cannot allocate more then 64K at a time. Even if you can, the memory
+it cannot allocate more than 64K at a time. Even if you can, the memory
won't be accessible. So limit zlib and libpng to 64K by defining MAXSEG_64K.
IX. Configuring for DOS
after the build of pnglibconf.h and it is never included in an application
build.
-The rarely used alternative of adding a list of feature macros to the
+The formerly used alternative of adding a list of feature macros to the
CPPFLAGS setting in the build also still works; however, the macros will be
copied to pnglibconf.h and this may produce macro redefinition warnings
when the individual C files are compiled.
Configuration options are now documented in scripts/pnglibconf.dfa. This
file also includes dependency information that ensures a configuration is
-consistent; that is, if a feature is switched off dependent features are
-also removed. As a recommended alternative to using feature macros in
+consistent; that is, if a feature is switched off, dependent features are
+also switched off. As a recommended alternative to using feature macros in
pngusr.h a system builder may also define equivalent options in pngusr.dfa
(or, indeed, any file) and add that to the configuration by setting
DFA_XTRA to the file name. The makefiles in contrib/pngminim illustrate
-how to do this, and illustrate a case where pngusr.h is still required.
+how to do this, and also illustrate a case where pngusr.h is still required.
+
+After you have built libpng, the definitions that were recorded in
+pnglibconf.h are available to your application (pnglibconf.h is included
+in png.h and gets installed alongside png.h and pngconf.h in your
+$PREFIX/include directory). Do not edit pnglibconf.h after you have built
+libpng, because than the settings would not accurately reflect the settings
+that were used to build libpng.
-XV. Configuring libpng for multiprocessing
+XV. Setjmp/longjmp issues
Libpng uses setjmp()/longjmp() for error handling. Unfortunately setjmp()
is known to be not thread-safe on some platforms and we don't know of
in your pnglibconf.h or pngusr.h.
+Starting with libpng-1.6.0, the library included a "simplified API".
+This requires setjmp/longjmp, so you must either build the library
+with PNG_SETJMP_SUPPORTED defined, or with PNG_SIMPLIFIED_READ_SUPPORTED
+and PNG_SIMPLIFIED_WRITE_SUPPORTED undefined.
+
XVI. Other sources of information about libpng:
Further information can be found in the README and libpng-manual.txt
--with-pkgconfigdir=/usr/lib/pkgconfig --includedir=/usr/include
You can alternatively specify --includedir=/usr/include, /usr/local/include,
-/usr/include/libpng%NN%, or whatever.
+/usr/include/libpng16, or whatever.
If you find that the configure script is out-of-date or is not supporting
your platform properly, try running autogen.sh to regenerate "configure",
This code is released under the libpng license.
-libpng versions 1.2.6, August 15, 2004, through 1.6.13, August 21, 2014, are
-Copyright (c) 2004, 2006-2014 Glenn Randers-Pehrson, and are
-distributed according to the same disclaimer and license as libpng-1.2.5
-with the following individual added to the list of Contributing Authors
-
- Cosmin Truta
-
-libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are
-Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
-distributed according to the same disclaimer and license as libpng-1.0.6
-with the following individuals added to the list of Contributing Authors
+libpng versions 1.0.7, July 1, 2000, through 1.6.21, January 15, 2016, are
+Copyright (c) 2000-2002, 2004, 2006-2016 Glenn Randers-Pehrson, are
+derived from libpng-1.0.6, and are distributed according to the same
+disclaimer and license as libpng-1.0.6 with the following individuals
+added to the list of Contributing Authors:
Simon-Pierre Cadieux
Eric S. Raymond
+ Mans Rullgard
+ Cosmin Truta
Gilles Vollant
+ James Yu
and with the following additions to the disclaimer:
the user.
libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
-Copyright (c) 1998, 1999 Glenn Randers-Pehrson, and are
-distributed according to the same disclaimer and license as libpng-0.96,
-with the following individuals added to the list of Contributing Authors:
+Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from
+libpng-0.96, and are distributed according to the same disclaimer and
+license as libpng-0.96, with the following individuals added to the list
+of Contributing Authors:
Tom Lane
Glenn Randers-Pehrson
Willem van Schaik
libpng versions 0.89, June 1996, through 0.96, May 1997, are
-Copyright (c) 1996, 1997 Andreas Dilger
-Distributed according to the same disclaimer and license as libpng-0.88,
-with the following individuals added to the list of Contributing Authors:
+Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88,
+and are distributed according to the same disclaimer and license as
+libpng-0.88, with the following individuals added to the list of
+Contributing Authors:
John Bowler
Kevin Bracey
Tom Tanner
libpng versions 0.5, May 1995, through 0.88, January 1996, are
-Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
+Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
For the purposes of this copyright and license, "Contributing Authors"
is defined as the following set of individuals:
source code, or portions hereof, for any purpose, without fee, subject
to the following restrictions:
-1. The origin of this source code must not be misrepresented.
+ 1. The origin of this source code must not be misrepresented.
-2. Altered versions must be plainly marked as such and must not
- be misrepresented as being the original source.
+ 2. Altered versions must be plainly marked as such and must not
+ be misrepresented as being the original source.
-3. This Copyright notice may not be removed or altered from any
- source or altered source distribution.
+ 3. This Copyright notice may not be removed or altered from any
+ source or altered source distribution.
The Contributing Authors and Group 42, Inc. specifically permit, without
fee, and encourage the use of this source code as a component to
source code in a product, acknowledgment is not required but would be
appreciated.
+END OF COPYRIGHT NOTICE, DISCLAIMER, and LICENSE.
A "png_get_copyright" function is available, for convenient use in "about"
boxes and the like:
- printf("%s",png_get_copyright(NULL));
+ printf("%s", png_get_copyright(NULL));
Also, the PNG logo (in PNG format, of course) is supplied in the
files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
-Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a
-certification mark of the Open Source Initiative.
+Libpng is OSI Certified Open Source Software. OSI Certified Open Source is
+a certification mark of the Open Source Initiative. OSI has not addressed
+the additional disclaimers inserted at version 1.0.7.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
-August 21, 2014
+January 15, 2016
tests/pngvalid-gamma-expand16-background\
tests/pngvalid-gamma-expand16-transform tests/pngvalid-gamma-sbit\
tests/pngvalid-gamma-threshold tests/pngvalid-gamma-transform\
- tests/pngvalid-progressive-interlace-size\
+ tests/pngvalid-progressive-size\
tests/pngvalid-progressive-interlace-standard\
- tests/pngvalid-progressive-interlace-transform\
+ tests/pngvalid-transform\
tests/pngvalid-progressive-standard tests/pngvalid-standard\
- tests/pngstest-0g01 tests/pngstest-0g02 tests/pngstest-0g04\
- tests/pngstest-0g08 tests/pngstest-0g16 tests/pngstest-2c08\
- tests/pngstest-2c16 tests/pngstest-3p01 tests/pngstest-3p02\
- tests/pngstest-3p04 tests/pngstest-3p08 tests/pngstest-4a08\
- tests/pngstest-4a16 tests/pngstest-6a08 tests/pngstest-6a16\
- tests/pngstest-error tests/pngunknown-IDAT\
+ tests/pngstest-1.8 tests/pngstest-1.8-alpha tests/pngstest-linear\
+ tests/pngstest-linear-alpha tests/pngstest-none tests/pngstest-none-alpha\
+ tests/pngstest-sRGB tests/pngstest-sRGB-alpha tests/pngunknown-IDAT\
tests/pngunknown-discard tests/pngunknown-if-safe tests/pngunknown-sAPI\
tests/pngunknown-sTER tests/pngunknown-save tests/pngunknown-vpAg\
tests/pngimage-quick tests/pngimage-full
-# These tests are expected, and required, to fail:
-XFAIL_TESTS = tests/pngstest-error
-
# man pages
dist_man_MANS= libpng.3 libpngpf.3 png.5
$(TESTS) $(XFAIL_TESTS) tests/pngstest \
CMakeLists.txt example.c libpng-manual.txt
-SCRIPT_CLEANFILES=scripts/*.out scripts/*.chk scripts/pnglibconf.dfn
+SCRIPT_CLEANFILES=scripts/*.out scripts/*.chk
CLEANFILES= *.tf? pngout.png libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.pc \
libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config libpng.vers libpng.sym \
- check.new pnglibconf.* pngprefix.h symbols.new pngtest-log.txt \
+ check.new pnglibconf.h pngprefix.h symbols.new pngtest-log.txt \
+ pnglibconf.out pnglibconf.c pnglibconf.pre pnglibconf.dfn \
$(SCRIPT_CLEANFILES)
MAINTAINERCLEANFILES = Makefile.in aclocal.m4 config.guess config.h.in \
# checks for this and sets DFNCPP appropriately.
DFNCPP = @DFNCPP@
-SUFFIXES = .chk .dfn .out
+SUFFIXES = .chk .out
$(PNGLIB_BASENAME).pc: libpng.pc
cp libpng.pc $@
SYMBOL_CFLAGS += -DPNG_PREFIX='@PNG_PREFIX@'
endif
-.dfn.out:
- rm -f $@ $*.c $*.tf[12]
+.c.out:
+ rm -f $@ $*.tf[12]
test -d scripts || mkdir scripts || test -d scripts
- echo '#include "$<"' >$*.c
$(DFNCPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES)\
- $(CPPFLAGS) $(SYMBOL_CFLAGS) $*.c > $*.tf1
+ $(CPPFLAGS) $(SYMBOL_CFLAGS) $< > $*.tf1
$(AWK) -f "${srcdir}/scripts/dfn.awk" out="$*.tf2" $*.tf1 1>&2
- rm -f $*.c $*.tf1
+ rm -f $*.tf1
mv $*.tf2 $@
-# The .dfn file for pnglibconf.h is machine generated
-pnglibconf.dfn: scripts/pnglibconf.dfa scripts/options.awk pngconf.h pngusr.dfa $(DFA_XTRA)
+# The .c file for pnglibconf.h is machine generated
+pnglibconf.c: scripts/pnglibconf.dfa scripts/options.awk pngconf.h pngusr.dfa $(DFA_XTRA)
rm -f $@ $*.tf[45]
$(AWK) -f ${srcdir}/scripts/options.awk out=$*.tf4 version=search\
${srcdir}/pngconf.h ${srcdir}/scripts/pnglibconf.dfa\
# used on demand to regenerate the standard header, CPPFLAGS should
# be empty - no non-standard defines
-scripts/pnglibconf.dfn: scripts/pnglibconf.dfa scripts/options.awk pngconf.h
+scripts/pnglibconf.c: scripts/pnglibconf.dfa scripts/options.awk pngconf.h
rm -f $@ pnglibconf.tf[67]
test -z "$(CPPFLAGS)"
echo "com @PNGLIB_VERSION@ STANDARD API DEFINITION" |\
-# Makefile.in generated by automake 1.14.1 from Makefile.am.
+# Makefile.in generated by automake 1.15 from Makefile.am.
# @configure_input@
-# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+# Copyright (C) 1994-2014 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
VPATH = @srcdir@
-am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
+}
am__make_running_with_option = \
case $${target_option-} in \
?) ;; \
@HAVE_LD_VERSION_SCRIPT_FALSE@am__append_4 = -export-symbols libpng.sym
@DO_PNG_PREFIX_TRUE@am__append_5 = -DPNG_PREFIX='@PNG_PREFIX@'
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- $(srcdir)/config.h.in $(srcdir)/libpng.pc.in \
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ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
am__aclocal_m4_deps = $(top_srcdir)/scripts/libtool.m4 \
$(top_srcdir)/scripts/ltoptions.m4 \
$(top_srcdir)/configure.ac
am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
$(ACLOCAL_M4)
+DIST_COMMON = $(srcdir)/Makefile.am $(top_srcdir)/configure \
+ $(am__configure_deps) $(pkginclude_HEADERS) $(am__DIST_COMMON)
am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
configure.lineno config.status.lineno
mkinstalldirs = $(install_sh) -d
TEST_LOG_DRIVER = $(SHELL) $(top_srcdir)/test-driver
TEST_LOG_COMPILE = $(TEST_LOG_COMPILER) $(AM_TEST_LOG_FLAGS) \
$(TEST_LOG_FLAGS)
+am__DIST_COMMON = $(dist_man_MANS) $(srcdir)/Makefile.in \
+ $(srcdir)/config.h.in $(srcdir)/libpng-config.in \
+ $(srcdir)/libpng.pc.in INSTALL README TODO compile \
+ config.guess config.sub depcomp install-sh ltmain.sh missing \
+ test-driver
DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
distdir = $(PACKAGE)-$(VERSION)
top_distdir = $(distdir)
LIPO = @LIPO@
LN_S = @LN_S@
LTLIBOBJS = @LTLIBOBJS@
+LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@
MAINT = @MAINT@
MAKEINFO = @MAKEINFO@
MANIFEST_TOOL = @MANIFEST_TOOL@
tests/pngvalid-gamma-expand16-background\
tests/pngvalid-gamma-expand16-transform tests/pngvalid-gamma-sbit\
tests/pngvalid-gamma-threshold tests/pngvalid-gamma-transform\
- tests/pngvalid-progressive-interlace-size\
+ tests/pngvalid-progressive-size\
tests/pngvalid-progressive-interlace-standard\
- tests/pngvalid-progressive-interlace-transform\
+ tests/pngvalid-transform\
tests/pngvalid-progressive-standard tests/pngvalid-standard\
- tests/pngstest-0g01 tests/pngstest-0g02 tests/pngstest-0g04\
- tests/pngstest-0g08 tests/pngstest-0g16 tests/pngstest-2c08\
- tests/pngstest-2c16 tests/pngstest-3p01 tests/pngstest-3p02\
- tests/pngstest-3p04 tests/pngstest-3p08 tests/pngstest-4a08\
- tests/pngstest-4a16 tests/pngstest-6a08 tests/pngstest-6a16\
- tests/pngstest-error tests/pngunknown-IDAT\
+ tests/pngstest-1.8 tests/pngstest-1.8-alpha tests/pngstest-linear\
+ tests/pngstest-linear-alpha tests/pngstest-none tests/pngstest-none-alpha\
+ tests/pngstest-sRGB tests/pngstest-sRGB-alpha tests/pngunknown-IDAT\
tests/pngunknown-discard tests/pngunknown-if-safe tests/pngunknown-sAPI\
tests/pngunknown-sTER tests/pngunknown-save tests/pngunknown-vpAg\
tests/pngimage-quick tests/pngimage-full
-# These tests are expected, and required, to fail:
-XFAIL_TESTS = tests/pngstest-error
-
# man pages
dist_man_MANS = libpng.3 libpngpf.3 png.5
EXTRA_SCRIPTS = libpng-config libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config
$(TESTS) $(XFAIL_TESTS) tests/pngstest \
CMakeLists.txt example.c libpng-manual.txt
-SCRIPT_CLEANFILES = scripts/*.out scripts/*.chk scripts/pnglibconf.dfn
+SCRIPT_CLEANFILES = scripts/*.out scripts/*.chk
CLEANFILES = *.tf? pngout.png libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.pc \
libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config libpng.vers libpng.sym \
- check.new pnglibconf.* pngprefix.h symbols.new pngtest-log.txt \
+ check.new pnglibconf.h pngprefix.h symbols.new pngtest-log.txt \
+ pnglibconf.out pnglibconf.c pnglibconf.pre pnglibconf.dfn \
$(SCRIPT_CLEANFILES)
MAINTAINERCLEANFILES = Makefile.in aclocal.m4 config.guess config.h.in \
config.sub configure depcomp install-sh ltmain.sh missing
AM_CFLAGS = ${PNG_COPTS}
-SUFFIXES = .chk .dfn .out
+SUFFIXES = .chk .out
# We must use -DPNG_NO_USE_READ_MACROS here even when the library may actually
# be built with PNG_USE_READ_MACROS; this prevents the read macros from
$(MAKE) $(AM_MAKEFLAGS) all-am
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-.SUFFIXES: .chk .dfn .out .S .c .lo .log .o .obj .test .test$(EXEEXT) .trs
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*config.status*) \
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- @p='tests/pngstest-error'; \
- b='tests/pngstest-error'; \
+tests/pngstest-sRGB-alpha.log: tests/pngstest-sRGB-alpha
+ @p='tests/pngstest-sRGB-alpha'; \
+ b='tests/pngstest-sRGB-alpha'; \
$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
--log-file $$b.log --trs-file $$b.trs \
$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
$(am__post_remove_distdir)
dist-tarZ: distdir
- @echo WARNING: "Support for shar distribution archives is" \
- "deprecated." >&2
+ @echo WARNING: "Support for distribution archives compressed with" \
+ "legacy program 'compress' is deprecated." >&2
@echo WARNING: "It will be removed altogether in Automake 2.0" >&2
tardir=$(distdir) && $(am__tar) | compress -c >$(distdir).tar.Z
$(am__post_remove_distdir)
dist-shar: distdir
- @echo WARNING: "Support for distribution archives compressed with" \
- "legacy program 'compress' is deprecated." >&2
+ @echo WARNING: "Support for shar distribution archives is" \
+ "deprecated." >&2
@echo WARNING: "It will be removed altogether in Automake 2.0" >&2
shar $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).shar.gz
$(am__post_remove_distdir)
esac
chmod -R a-w $(distdir)
chmod u+w $(distdir)
- mkdir $(distdir)/_build $(distdir)/_inst
+ mkdir $(distdir)/_build $(distdir)/_build/sub $(distdir)/_inst
chmod a-w $(distdir)
test -d $(distdir)/_build || exit 0; \
dc_install_base=`$(am__cd) $(distdir)/_inst && pwd | sed -e 's,^[^:\\/]:[\\/],/,'` \
&& dc_destdir="$${TMPDIR-/tmp}/am-dc-$$$$/" \
&& am__cwd=`pwd` \
- && $(am__cd) $(distdir)/_build \
- && ../configure \
+ && $(am__cd) $(distdir)/_build/sub \
+ && ../../configure \
$(AM_DISTCHECK_CONFIGURE_FLAGS) \
$(DISTCHECK_CONFIGURE_FLAGS) \
- --srcdir=.. --prefix="$$dc_install_base" \
+ --srcdir=../.. --prefix="$$dc_install_base" \
&& $(MAKE) $(AM_MAKEFLAGS) \
&& $(MAKE) $(AM_MAKEFLAGS) dvi \
&& $(MAKE) $(AM_MAKEFLAGS) check \
uninstall-nodist_pkgincludeHEADERS uninstall-pkgconfigDATA \
uninstall-pkgincludeHEADERS
+.PRECIOUS: Makefile
+
$(PNGLIB_BASENAME).pc: libpng.pc
cp libpng.pc $@
contrib/tools/makesRGB.o: pnglibconf.h
contrib/tools/pngfix.o: pnglibconf.h
-.dfn.out:
- rm -f $@ $*.c $*.tf[12]
+.c.out:
+ rm -f $@ $*.tf[12]
test -d scripts || mkdir scripts || test -d scripts
- echo '#include "$<"' >$*.c
$(DFNCPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES)\
- $(CPPFLAGS) $(SYMBOL_CFLAGS) $*.c > $*.tf1
+ $(CPPFLAGS) $(SYMBOL_CFLAGS) $< > $*.tf1
$(AWK) -f "${srcdir}/scripts/dfn.awk" out="$*.tf2" $*.tf1 1>&2
- rm -f $*.c $*.tf1
+ rm -f $*.tf1
mv $*.tf2 $@
-# The .dfn file for pnglibconf.h is machine generated
-pnglibconf.dfn: scripts/pnglibconf.dfa scripts/options.awk pngconf.h pngusr.dfa $(DFA_XTRA)
+# The .c file for pnglibconf.h is machine generated
+pnglibconf.c: scripts/pnglibconf.dfa scripts/options.awk pngconf.h pngusr.dfa $(DFA_XTRA)
rm -f $@ $*.tf[45]
$(AWK) -f ${srcdir}/scripts/options.awk out=$*.tf4 version=search\
${srcdir}/pngconf.h ${srcdir}/scripts/pnglibconf.dfa\
# used on demand to regenerate the standard header, CPPFLAGS should
# be empty - no non-standard defines
-scripts/pnglibconf.dfn: scripts/pnglibconf.dfa scripts/options.awk pngconf.h
+scripts/pnglibconf.c: scripts/pnglibconf.dfa scripts/options.awk pngconf.h
rm -f $@ pnglibconf.tf[67]
test -z "$(CPPFLAGS)"
echo "com @PNGLIB_VERSION@ STANDARD API DEFINITION" |\
-README for libpng version 1.6.13 - August 21, 2014 (shared library 16.0)
+README for libpng version 1.6.21 - January 15, 2016 (shared library 16.0)
See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng.
png_uint_32, which will affect shared-library applications that use
this function.
-To avoid problems with changes to the internals of png_info_struct,
+To avoid problems with changes to the internals of png info_struct,
new APIs have been made available in 0.95 to avoid direct application
access to info_ptr. These functions are the png_set_<chunk> and
png_get_<chunk> functions. These functions should be used when
accessing/storing the info_struct data, rather than manipulating it
directly, to avoid such problems in the future.
-It is important to note that the APIs do not make current programs
+It is important to note that the APIs did not make current programs
that access the info struct directly incompatible with the new
-library. However, it is strongly suggested that new programs use
-the new APIs (as shown in example.c and pngtest.c), and older programs
-be converted to the new format, to facilitate upgrades in the future.
+library, through libpng-1.2.x. In libpng-1.4.x, which was meant to
+be a transitional release, members of the png_struct and the
+info_struct can still be accessed, but the compiler will issue a
+warning about deprecated usage. Since libpng-1.5.0, direct access
+to these structs is not allowed, and the definitions of the structs
+reside in private pngstruct.h and pnginfo.h header files that are not
+accessible to applications. It is strongly suggested that new
+programs use the new APIs (as shown in example.c and pngtest.c), and
+older programs be converted to the new format, to facilitate upgrades
+in the future.
****
Additions since 0.90 include the ability to compile libpng as a
to others, if necessary.
Please do not send suggestions on how to change PNG. We have
-been discussing PNG for nineteen years now, and it is official and
+been discussing PNG for twenty years now, and it is official and
finished. If you have suggestions for libpng, however, I'll
gladly listen. Even if your suggestion is not used immediately,
it may be used later.
pngminus => Simple pnm2png and png2pnm programs
pngsuite => Test images
tools => Various tools
- visupng => Contains a MSVC workspace for VisualPng
+ visupng => Contains a MSVC workspace for VisualPng
projects => Contains project files and workspaces for
building a DLL
owatcom => Contains a WATCOM project for building libpng
-# generated automatically by aclocal 1.14.1 -*- Autoconf -*-
+# generated automatically by aclocal 1.15 -*- Autoconf -*-
-# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+# Copyright (C) 1996-2014 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
If you have problems, you may need to regenerate the build system entirely.
To do so, use the procedure documented by the package, typically 'autoreconf'.])])
-# Copyright (C) 2002-2013 Free Software Foundation, Inc.
+# Copyright (C) 2002-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# generated from the m4 files accompanying Automake X.Y.
# (This private macro should not be called outside this file.)
AC_DEFUN([AM_AUTOMAKE_VERSION],
-[am__api_version='1.14'
+[am__api_version='1.15'
dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
dnl require some minimum version. Point them to the right macro.
-m4_if([$1], [1.14.1], [],
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# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
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_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
# Figure out how to run the assembler. -*- Autoconf -*-
-# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+# Copyright (C) 2001-2014 Free Software Foundation, Inc.
#
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# gives unlimited permission to copy and/or distribute it,
# AM_AUX_DIR_EXPAND -*- Autoconf -*-
-# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+# Copyright (C) 2001-2014 Free Software Foundation, Inc.
#
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AC_DEFUN([AM_AUX_DIR_EXPAND],
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-AC_PREREQ([2.50])dnl
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+[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
+# Expand $ac_aux_dir to an absolute path.
+am_aux_dir=`cd "$ac_aux_dir" && pwd`
])
# AM_CONDITIONAL -*- Autoconf -*-
-# Copyright (C) 1997-2013 Free Software Foundation, Inc.
+# Copyright (C) 1997-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
Usually this means the macro was only invoked conditionally.]])
fi])])
-# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+# Copyright (C) 1999-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# Generate code to set up dependency tracking. -*- Autoconf -*-
-# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+# Copyright (C) 1999-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# Do all the work for Automake. -*- Autoconf -*-
-# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+# Copyright (C) 1996-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
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AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
-# We need awk for the "check" target. The system "awk" is bad on
-# some platforms.
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AC_REQUIRE([AC_PROG_AWK])dnl
AC_REQUIRE([AC_PROG_MAKE_SET])dnl
AC_REQUIRE([AM_SET_LEADING_DOT])dnl
END
AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
fi
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+fi
+dnl The trailing newline in this macro's definition is deliberate, for
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+dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
+])
dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
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done
echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
-# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+# Copyright (C) 2001-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# Define $install_sh.
AC_DEFUN([AM_PROG_INSTALL_SH],
[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
-if test x"${install_sh}" != xset; then
+if test x"${install_sh+set}" != xset; then
case $am_aux_dir in
*\ * | *\ *)
install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
fi
AC_SUBST([install_sh])])
-# Copyright (C) 2003-2013 Free Software Foundation, Inc.
+# Copyright (C) 2003-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
# From Jim Meyering
-# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+# Copyright (C) 1996-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# Check to see how 'make' treats includes. -*- Autoconf -*-
-# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+# Copyright (C) 2001-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
-# Copyright (C) 1997-2013 Free Software Foundation, Inc.
+# Copyright (C) 1997-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# Helper functions for option handling. -*- Autoconf -*-
-# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+# Copyright (C) 2001-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
AC_DEFUN([_AM_IF_OPTION],
[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
-# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+# Copyright (C) 1999-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# For backward compatibility.
AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
-# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+# Copyright (C) 2001-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# Check to make sure that the build environment is sane. -*- Autoconf -*-
-# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+# Copyright (C) 1996-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
rm -f conftest.file
])
-# Copyright (C) 2009-2013 Free Software Foundation, Inc.
+# Copyright (C) 2009-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
])
-# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+# Copyright (C) 2001-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
AC_SUBST([INSTALL_STRIP_PROGRAM])])
-# Copyright (C) 2006-2013 Free Software Foundation, Inc.
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# Check how to create a tarball. -*- Autoconf -*-
-# Copyright (C) 2004-2013 Free Software Foundation, Inc.
+# Copyright (C) 2004-2014 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
*
* Copyright (c) 2014 Glenn Randers-Pehrson
* Written by Mans Rullgard, 2011.
- * Last changed in libpng 1.6.10 [March 6, 2014]
+ * Last changed in libpng 1.6.16 [December 22, 2014]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
#include "../pngpriv.h"
#ifdef PNG_READ_SUPPORTED
+
#if PNG_ARM_NEON_OPT > 0
#ifdef PNG_ARM_NEON_CHECK_SUPPORTED /* Do run-time checks */
/* WARNING: it is strongly recommended that you do not build libpng with
}
}
#endif /* PNG_ARM_NEON_OPT > 0 */
-#endif /* PNG_READ_SUPPORTED */
+#endif /* READ */
/* filter_neon.S - NEON optimised filter functions
*
- * Copyright (c) 2013 Glenn Randers-Pehrson
+ * Copyright (c) 2014 Glenn Randers-Pehrson
* Written by Mans Rullgard, 2011.
- * Last changed in libpng 1.6.8 [December 19, 2013]
+ * Last changed in libpng 1.6.16 [December 22, 2014]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/
-/* This is required to get the symbol renames, which are #defines, and also
- * includes the definition (or not) of PNG_ARM_NEON_OPT and
- * PNG_ARM_NEON_IMPLEMENTATION.
+/* This is required to get the symbol renames, which are #defines, and the
+ * definitions (or not) of PNG_ARM_NEON_OPT and PNG_ARM_NEON_IMPLEMENTATION.
*/
#define PNG_VERSION_INFO_ONLY
#include "../pngpriv.h"
.section .note.GNU-stack,"",%progbits /* mark stack as non-executable */
#endif
+#ifdef PNG_READ_SUPPORTED
+
/* Assembler NEON support - only works for 32-bit ARM (i.e. it does not work for
* ARM64). The code in arm/filter_neon_intrinsics.c supports ARM64, however it
* only works if -mfpu=neon is specified on the GCC command line. See pngpriv.h
*/
#if PNG_ARM_NEON_IMPLEMENTATION == 2 /* hand-coded assembler */
-#ifdef PNG_READ_SUPPORTED
#if PNG_ARM_NEON_OPT > 0
#ifdef __ELF__
.purgem endfunc
.endm
.text
+
+ /* Explicitly specifying alignment here because some versions of
+ * GAS don't align code correctly. This is harmless in correctly
+ * written versions of GAS.
+ */
+ .align 2
+
.if \export
.global \name
.endif
pop {r4,pc}
endfunc
#endif /* PNG_ARM_NEON_OPT > 0 */
-#endif /* PNG_READ_SUPPORTED */
#endif /* PNG_ARM_NEON_IMPLEMENTATION == 2 (assembler) */
+#endif /* READ */
/* filter_neon_intrinsics.c - NEON optimised filter functions
*
- * Copyright (c) 2013 Glenn Randers-Pehrson
+ * Copyright (c) 2014 Glenn Randers-Pehrson
* Written by James Yu <james.yu at linaro.org>, October 2013.
* Based on filter_neon.S, written by Mans Rullgard, 2011.
*
- * Last changed in libpng 1.6.8 [December 19, 2013]
+ * Last changed in libpng 1.6.16 [December 22, 2014]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
#include "../pngpriv.h"
+#ifdef PNG_READ_SUPPORTED
+
/* This code requires -mfpu=neon on the command line: */
#if PNG_ARM_NEON_IMPLEMENTATION == 1 /* intrinsics code from pngpriv.h */
#define png_ldr(type,pointer)\
(temp_pointer = png_ptr(type,pointer), *temp_pointer)
-#ifdef PNG_READ_SUPPORTED
#if PNG_ARM_NEON_OPT > 0
void
}
#endif /* PNG_ARM_NEON_OPT > 0 */
-#endif /* PNG_READ_SUPPORTED */
#endif /* PNG_ARM_NEON_IMPLEMENTATION == 1 (intrinsics) */
+#endif /* READ */
# present bad things are happening.
#
# The autotools generated files:
-libpng_autotools_files="Makefile.in aclocal.m4 config.guess config.h.in\
- config.sub configure depcomp install-sh ltmain.sh missing test-driver"
+libpng_autotools_files="Makefile.in aclocal.m4 config.guess config.h.in
+ config.sub configure depcomp install-sh ltmain.sh missing\
+ test-driver"
#
# Files generated by versions of configue >2.68 or automake >1.13 (i.e. later
# versions than those required by configure.ac):
-libpng_autotools_extra="compile"
+libpng_autotools_extra="compile config.h.in~"
#
# These are separate because 'maintainer-clean' does not remove them.
libpng_libtool_files="scripts/libtool.m4 scripts/ltoptions.m4\
scriptversion=2012-10-14.11; # UTC
-# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+# Copyright (C) 1999-2014 Free Software Foundation, Inc.
# Written by Tom Tromey <tromey@cygnus.com>.
#
# This program is free software; you can redistribute it and/or modify
#! /bin/sh
# Attempt to guess a canonical system name.
-# Copyright 1992-2013 Free Software Foundation, Inc.
+# Copyright 1992-2014 Free Software Foundation, Inc.
-timestamp='2013-11-29'
+timestamp='2014-11-04'
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# program. This Exception is an additional permission under section 7
# of the GNU General Public License, version 3 ("GPLv3").
#
-# Originally written by Per Bothner.
+# Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
#
# You can get the latest version of this script from:
# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
#
-# Please send patches with a ChangeLog entry to config-patches@gnu.org.
+# Please send patches to <config-patches@gnu.org>.
me=`echo "$0" | sed -e 's,.*/,,'`
GNU config.guess ($timestamp)
Originally written by Per Bothner.
-Copyright 1992-2013 Free Software Foundation, Inc.
+Copyright 1992-2014 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
LIBC=gnu
#endif
EOF
- eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'`
+ eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`
;;
esac
else
IBM_ARCH=powerpc
fi
- if [ -x /usr/bin/oslevel ] ; then
- IBM_REV=`/usr/bin/oslevel`
+ if [ -x /usr/bin/lslpp ] ; then
+ IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc |
+ awk -F: '{ print $3 }' | sed s/[0-9]*$/0/`
else
IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
fi
*:MINGW*:*)
echo ${UNAME_MACHINE}-pc-mingw32
exit ;;
- i*:MSYS*:*)
+ *:MSYS*:*)
echo ${UNAME_MACHINE}-pc-msys
exit ;;
i*:windows32*:*)
eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; }
;;
- or1k:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+ openrisc*:Linux:*:*)
+ echo or1k-unknown-linux-${LIBC}
exit ;;
- or32:Linux:*:*)
+ or32:Linux:*:* | or1k*:Linux:*:*)
echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
padre:Linux:*:*)
exit ;;
esac
-eval $set_cc_for_build
-cat >$dummy.c <<EOF
-#ifdef _SEQUENT_
-# include <sys/types.h>
-# include <sys/utsname.h>
-#endif
-main ()
-{
-#if defined (sony)
-#if defined (MIPSEB)
- /* BFD wants "bsd" instead of "newsos". Perhaps BFD should be changed,
- I don't know.... */
- printf ("mips-sony-bsd\n"); exit (0);
-#else
-#include <sys/param.h>
- printf ("m68k-sony-newsos%s\n",
-#ifdef NEWSOS4
- "4"
-#else
- ""
-#endif
- ); exit (0);
-#endif
-#endif
-
-#if defined (__arm) && defined (__acorn) && defined (__unix)
- printf ("arm-acorn-riscix\n"); exit (0);
-#endif
-
-#if defined (hp300) && !defined (hpux)
- printf ("m68k-hp-bsd\n"); exit (0);
-#endif
-
-#if defined (NeXT)
-#if !defined (__ARCHITECTURE__)
-#define __ARCHITECTURE__ "m68k"
-#endif
- int version;
- version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
- if (version < 4)
- printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
- else
- printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
- exit (0);
-#endif
-
-#if defined (MULTIMAX) || defined (n16)
-#if defined (UMAXV)
- printf ("ns32k-encore-sysv\n"); exit (0);
-#else
-#if defined (CMU)
- printf ("ns32k-encore-mach\n"); exit (0);
-#else
- printf ("ns32k-encore-bsd\n"); exit (0);
-#endif
-#endif
-#endif
-
-#if defined (__386BSD__)
- printf ("i386-pc-bsd\n"); exit (0);
-#endif
-
-#if defined (sequent)
-#if defined (i386)
- printf ("i386-sequent-dynix\n"); exit (0);
-#endif
-#if defined (ns32000)
- printf ("ns32k-sequent-dynix\n"); exit (0);
-#endif
-#endif
-
-#if defined (_SEQUENT_)
- struct utsname un;
-
- uname(&un);
-
- if (strncmp(un.version, "V2", 2) == 0) {
- printf ("i386-sequent-ptx2\n"); exit (0);
- }
- if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
- printf ("i386-sequent-ptx1\n"); exit (0);
- }
- printf ("i386-sequent-ptx\n"); exit (0);
-
-#endif
-
-#if defined (vax)
-# if !defined (ultrix)
-# include <sys/param.h>
-# if defined (BSD)
-# if BSD == 43
- printf ("vax-dec-bsd4.3\n"); exit (0);
-# else
-# if BSD == 199006
- printf ("vax-dec-bsd4.3reno\n"); exit (0);
-# else
- printf ("vax-dec-bsd\n"); exit (0);
-# endif
-# endif
-# else
- printf ("vax-dec-bsd\n"); exit (0);
-# endif
-# else
- printf ("vax-dec-ultrix\n"); exit (0);
-# endif
-#endif
-
-#if defined (alliant) && defined (i860)
- printf ("i860-alliant-bsd\n"); exit (0);
-#endif
-
- exit (1);
-}
-EOF
-
-$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` &&
- { echo "$SYSTEM_NAME"; exit; }
-
-# Apollos put the system type in the environment.
-
-test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; }
-
-# Convex versions that predate uname can use getsysinfo(1)
-
-if [ -x /usr/convex/getsysinfo ]
-then
- case `getsysinfo -f cpu_type` in
- c1*)
- echo c1-convex-bsd
- exit ;;
- c2*)
- if getsysinfo -f scalar_acc
- then echo c32-convex-bsd
- else echo c2-convex-bsd
- fi
- exit ;;
- c34*)
- echo c34-convex-bsd
- exit ;;
- c38*)
- echo c38-convex-bsd
- exit ;;
- c4*)
- echo c4-convex-bsd
- exit ;;
- esac
-fi
-
cat >&2 <<EOF
$0: unable to guess system type
/* Define to 1 if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
- */
+/* Define to the sub-directory where libtool stores uninstalled libraries. */
#undef LT_OBJDIR
/* Name of package */
#! /bin/sh
# Configuration validation subroutine script.
-# Copyright 1992-2013 Free Software Foundation, Inc.
+# Copyright 1992-2014 Free Software Foundation, Inc.
-timestamp='2013-10-01'
+timestamp='2014-12-03'
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# of the GNU General Public License, version 3 ("GPLv3").
-# Please send patches with a ChangeLog entry to config-patches@gnu.org.
+# Please send patches to <config-patches@gnu.org>.
#
# Configuration subroutine to validate and canonicalize a configuration type.
# Supply the specified configuration type as an argument.
version="\
GNU config.sub ($timestamp)
-Copyright 1992-2013 Free Software Foundation, Inc.
+Copyright 1992-2014 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
| mips64vr5900 | mips64vr5900el \
| mipsisa32 | mipsisa32el \
| mipsisa32r2 | mipsisa32r2el \
+ | mipsisa32r6 | mipsisa32r6el \
| mipsisa64 | mipsisa64el \
| mipsisa64r2 | mipsisa64r2el \
+ | mipsisa64r6 | mipsisa64r6el \
| mipsisa64sb1 | mipsisa64sb1el \
| mipsisa64sr71k | mipsisa64sr71kel \
| mipsr5900 | mipsr5900el \
| nds32 | nds32le | nds32be \
| nios | nios2 | nios2eb | nios2el \
| ns16k | ns32k \
- | open8 \
- | or1k | or32 \
+ | open8 | or1k | or1knd | or32 \
| pdp10 | pdp11 | pj | pjl \
| powerpc | powerpc64 | powerpc64le | powerpcle \
| pyramid \
+ | riscv32 | riscv64 \
| rl78 | rx \
| score \
| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
| ubicom32 \
| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
+ | visium \
| we32k \
| x86 | xc16x | xstormy16 | xtensa \
| z8k | z80)
c6x)
basic_machine=tic6x-unknown
;;
+ leon|leon[3-9])
+ basic_machine=sparc-$basic_machine
+ ;;
m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip)
basic_machine=$basic_machine-unknown
os=-none
| mips64vr5900-* | mips64vr5900el-* \
| mipsisa32-* | mipsisa32el-* \
| mipsisa32r2-* | mipsisa32r2el-* \
+ | mipsisa32r6-* | mipsisa32r6el-* \
| mipsisa64-* | mipsisa64el-* \
| mipsisa64r2-* | mipsisa64r2el-* \
+ | mipsisa64r6-* | mipsisa64r6el-* \
| mipsisa64sb1-* | mipsisa64sb1el-* \
| mipsisa64sr71k-* | mipsisa64sr71kel-* \
| mipsr5900-* | mipsr5900el-* \
| nios-* | nios2-* | nios2eb-* | nios2el-* \
| none-* | np1-* | ns16k-* | ns32k-* \
| open8-* \
+ | or1k*-* \
| orion-* \
| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
| ubicom32-* \
| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
| vax-* \
+ | visium-* \
| we32k-* \
| x86-* | x86_64-* | xc16x-* | xps100-* \
| xstormy16-* | xtensa*-* \
basic_machine=m68k-isi
os=-sysv
;;
+ leon-*|leon[3-9]-*)
+ basic_machine=sparc-`echo $basic_machine | sed 's/-.*//'`
+ ;;
m68knommu)
basic_machine=m68k-unknown
os=-linux
basic_machine=powerpc-unknown
os=-morphos
;;
+ moxiebox)
+ basic_machine=moxie-unknown
+ os=-moxiebox
+ ;;
msdos)
basic_machine=i386-pc
os=-msdos
| -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
| -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
| -linux-newlib* | -linux-musl* | -linux-uclibc* \
- | -uxpv* | -beos* | -mpeix* | -udk* \
+ | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \
| -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
| -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
| -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
| -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
| -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
| -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
- | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es*)
+ | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* | -tirtos*)
# Remember, each alternative MUST END IN *, to match a version number.
;;
-qnx*)
mips*-*)
os=-elf
;;
- or1k-*)
- os=-elf
- ;;
or32-*)
os=-coff
;;
#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for libpng 1.6.13.
+# Generated by GNU Autoconf 2.69 for libpng 1.6.21.
#
# Report bugs to <png-mng-implement@lists.sourceforge.net>.
#
# Identity of this package.
PACKAGE_NAME='libpng'
PACKAGE_TARNAME='libpng'
-PACKAGE_VERSION='1.6.13'
-PACKAGE_STRING='libpng 1.6.13'
+PACKAGE_VERSION='1.6.21'
+PACKAGE_STRING='libpng 1.6.21'
PACKAGE_BUGREPORT='png-mng-implement@lists.sourceforge.net'
PACKAGE_URL=''
POW_LIB
PNG_COPTS
DFNCPP
+LT_SYS_LIBRARY_PATH
OTOOL64
OTOOL
LIPO
enable_static
with_pic
enable_fast_install
+with_aix_soname
with_sysroot
enable_libtool_lock
enable_werror
CCAS
CCASFLAGS
CPP
+LT_SYS_LIBRARY_PATH
PNG_COPTS'
# Omit some internal or obsolete options to make the list less imposing.
# This message is too long to be a string in the A/UX 3.1 sh.
cat <<_ACEOF
-\`configure' configures libpng 1.6.13 to adapt to many kinds of systems.
+\`configure' configures libpng 1.6.21 to adapt to many kinds of systems.
Usage: $0 [OPTION]... [VAR=VALUE]...
if test -n "$ac_init_help"; then
case $ac_init_help in
- short | recursive ) echo "Configuration of libpng 1.6.13:";;
+ short | recursive ) echo "Configuration of libpng 1.6.21:";;
esac
cat <<\_ACEOF
--with-gnu-ld assume the C compiler uses GNU ld [default=no]
--with-pic[=PKGS] try to use only PIC/non-PIC objects [default=use
both]
- --with-sysroot=DIR Search for dependent libraries within DIR
- (or the compiler's sysroot if not specified).
+ --with-aix-soname=aix|svr4|both
+ shared library versioning (aka "SONAME") variant to
+ provide on AIX, [default=aix].
+ --with-sysroot[=DIR] Search for dependent libraries within DIR (or the
+ compiler's sysroot if not specified).
--with-zlib-prefix prefix that may have been used in installed zlib
--with-pkgconfigdir Use the specified pkgconfig dir (default is
libdir/pkgconfig)
CCAS assembler compiler command (defaults to CC)
CCASFLAGS assembler compiler flags (defaults to CFLAGS)
CPP C preprocessor
+ LT_SYS_LIBRARY_PATH
+ User-defined run-time library search path.
PNG_COPTS additional flags for the C compiler, use this for options that
would cause configure itself to fail
test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
cat <<\_ACEOF
-libpng configure 1.6.13
+libpng configure 1.6.21
generated by GNU Autoconf 2.69
Copyright (C) 2012 Free Software Foundation, Inc.
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
-It was created by libpng $as_me 1.6.13, which was
+It was created by libpng $as_me 1.6.21, which was
generated by GNU Autoconf 2.69. Invocation command line was
$ $0 $@
# dist-xz requires automake 1.11 or later
# 1.12.2 fixes a security issue in 1.11.2 and 1.12.1
# 1.13 is required for parallel tests
-am__api_version='1.14'
+am__api_version='1.15'
ac_aux_dir=
for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"`
-# expand $ac_aux_dir to an absolute path
-am_aux_dir=`cd $ac_aux_dir && pwd`
+# Expand $ac_aux_dir to an absolute path.
+am_aux_dir=`cd "$ac_aux_dir" && pwd`
if test x"${MISSING+set}" != xset; then
case $am_aux_dir in
$as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;}
fi
-if test x"${install_sh}" != xset; then
+if test x"${install_sh+set}" != xset; then
case $am_aux_dir in
*\ * | *\ *)
install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
# Define the identity of the package.
PACKAGE='libpng'
- VERSION='1.6.13'
+ VERSION='1.6.21'
cat >>confdefs.h <<_ACEOF
# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
mkdir_p='$(MKDIR_P)'
-# We need awk for the "check" target. The system "awk" is bad on
-# some platforms.
+# We need awk for the "check" target (and possibly the TAP driver). The
+# system "awk" is bad on some platforms.
# Always define AMTAR for backward compatibility. Yes, it's still used
# in the wild :-( We should find a proper way to deprecate it ...
AMTAR='$${TAR-tar}'
as_fn_error $? "Your 'rm' program is bad, sorry." "$LINENO" 5
fi
fi
+
# The following line causes --disable-maintainer-mode to be the default to
# configure, this is necessary because libpng distributions cannot rely on the
# time stamps of the autotools generated files being correct
-PNGLIB_VERSION=1.6.13
+PNGLIB_VERSION=1.6.21
PNGLIB_MAJOR=1
PNGLIB_MINOR=6
-PNGLIB_RELEASE=13
+PNGLIB_RELEASE=21
$ECHO ""
}
-case "$ECHO" in
+case $ECHO in
printf*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: printf" >&5
$as_echo "printf" >&6; } ;;
print*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: print -r" >&5
# Check whether --with-gnu-ld was given.
if test "${with_gnu_ld+set}" = set; then :
- withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes
+ withval=$with_gnu_ld; test no = "$withval" || with_gnu_ld=yes
else
with_gnu_ld=no
fi
ac_prog=ld
-if test "$GCC" = yes; then
+if test yes = "$GCC"; then
# Check if gcc -print-prog-name=ld gives a path.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
$as_echo_n "checking for ld used by $CC... " >&6; }
case $host in
*-*-mingw*)
- # gcc leaves a trailing carriage return which upsets mingw
+ # gcc leaves a trailing carriage return, which upsets mingw
ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
*)
ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
done
- test -z "$LD" && LD="$ac_prog"
+ test -z "$LD" && LD=$ac_prog
;;
"")
# If it fails, then pretend we aren't using GCC.
with_gnu_ld=unknown
;;
esac
-elif test "$with_gnu_ld" = yes; then
+elif test yes = "$with_gnu_ld"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
$as_echo_n "checking for GNU ld... " >&6; }
else
$as_echo_n "(cached) " >&6
else
if test -z "$LD"; then
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+ lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
for ac_dir in $PATH; do
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
test -z "$ac_dir" && ac_dir=.
if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
- lt_cv_path_LD="$ac_dir/$ac_prog"
+ lt_cv_path_LD=$ac_dir/$ac_prog
# Check to see if the program is GNU ld. I'd rather use --version,
# but apparently some variants of GNU ld only accept -v.
# Break only if it was the GNU/non-GNU ld that we prefer.
case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
*GNU* | *'with BFD'*)
- test "$with_gnu_ld" != no && break
+ test no != "$with_gnu_ld" && break
;;
*)
- test "$with_gnu_ld" != yes && break
+ test yes != "$with_gnu_ld" && break
;;
esac
fi
done
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
else
- lt_cv_path_LD="$LD" # Let the user override the test with a path.
+ lt_cv_path_LD=$LD # Let the user override the test with a path.
fi
fi
-LD="$lt_cv_path_LD"
+LD=$lt_cv_path_LD
if test -n "$LD"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
$as_echo "$LD" >&6; }
-macro_version='2.4.2'
-macro_revision='1.3337'
+macro_version='2.4.6'
+macro_revision='2.4.6'
-ltmain="$ac_aux_dir/ltmain.sh"
+ltmain=$ac_aux_dir/ltmain.sh
# Backslashify metacharacters that are still active within
# double-quoted strings.
else
if test -n "$NM"; then
# Let the user override the test.
- lt_cv_path_NM="$NM"
+ lt_cv_path_NM=$NM
else
- lt_nm_to_check="${ac_tool_prefix}nm"
+ lt_nm_to_check=${ac_tool_prefix}nm
if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
lt_nm_to_check="$lt_nm_to_check nm"
fi
for lt_tmp_nm in $lt_nm_to_check; do
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+ lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
test -z "$ac_dir" && ac_dir=.
- tmp_nm="$ac_dir/$lt_tmp_nm"
- if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then
+ tmp_nm=$ac_dir/$lt_tmp_nm
+ if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then
# Check to see if the nm accepts a BSD-compat flag.
- # Adding the `sed 1q' prevents false positives on HP-UX, which says:
+ # Adding the 'sed 1q' prevents false positives on HP-UX, which says:
# nm: unknown option "B" ignored
# Tru64's nm complains that /dev/null is an invalid object file
- case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in
- */dev/null* | *'Invalid file or object type'*)
+ # MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty
+ case $build_os in
+ mingw*) lt_bad_file=conftest.nm/nofile ;;
+ *) lt_bad_file=/dev/null ;;
+ esac
+ case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in
+ *$lt_bad_file* | *'Invalid file or object type'*)
lt_cv_path_NM="$tmp_nm -B"
- break
+ break 2
;;
*)
case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
*/dev/null*)
lt_cv_path_NM="$tmp_nm -p"
- break
+ break 2
;;
*)
lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
esac
fi
done
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
done
: ${lt_cv_path_NM=no}
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5
$as_echo "$lt_cv_path_NM" >&6; }
-if test "$lt_cv_path_NM" != "no"; then
- NM="$lt_cv_path_NM"
+if test no != "$lt_cv_path_NM"; then
+ NM=$lt_cv_path_NM
else
# Didn't find any BSD compatible name lister, look for dumpbin.
if test -n "$DUMPBIN"; then :
fi
fi
- case `$DUMPBIN -symbols /dev/null 2>&1 | sed '1q'` in
+ case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in
*COFF*)
- DUMPBIN="$DUMPBIN -symbols"
+ DUMPBIN="$DUMPBIN -symbols -headers"
;;
*)
DUMPBIN=:
esac
fi
- if test "$DUMPBIN" != ":"; then
- NM="$DUMPBIN"
+ if test : != "$DUMPBIN"; then
+ NM=$DUMPBIN
fi
fi
test -z "$NM" && NM=nm
$as_echo_n "(cached) " >&6
else
i=0
- teststring="ABCD"
+ teststring=ABCD
case $build_os in
msdosdjgpp*)
lt_cv_sys_max_cmd_len=8192;
;;
- netbsd* | freebsd* | openbsd* | darwin* | dragonfly*)
+ bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*)
# This has been around since 386BSD, at least. Likely further.
if test -x /sbin/sysctl; then
lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
;;
*)
lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
- if test -n "$lt_cv_sys_max_cmd_len"; then
+ if test -n "$lt_cv_sys_max_cmd_len" && \
+ test undefined != "$lt_cv_sys_max_cmd_len"; then
lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
else
# Make teststring a little bigger before we do anything with it.
# a 1K string should be a reasonable start.
- for i in 1 2 3 4 5 6 7 8 ; do
+ for i in 1 2 3 4 5 6 7 8; do
teststring=$teststring$teststring
done
SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
# If test is not a shell built-in, we'll probably end up computing a
# maximum length that is only half of the actual maximum length, but
# we can't tell.
- while { test "X"`env echo "$teststring$teststring" 2>/dev/null` \
+ while { test X`env echo "$teststring$teststring" 2>/dev/null` \
= "X$teststring$teststring"; } >/dev/null 2>&1 &&
- test $i != 17 # 1/2 MB should be enough
+ test 17 != "$i" # 1/2 MB should be enough
do
i=`expr $i + 1`
teststring=$teststring$teststring
fi
-if test -n $lt_cv_sys_max_cmd_len ; then
+if test -n "$lt_cv_sys_max_cmd_len"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5
$as_echo "$lt_cv_sys_max_cmd_len" >&6; }
else
: ${MV="mv -f"}
: ${RM="rm -f"}
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands some XSI constructs" >&5
-$as_echo_n "checking whether the shell understands some XSI constructs... " >&6; }
-# Try some XSI features
-xsi_shell=no
-( _lt_dummy="a/b/c"
- test "${_lt_dummy##*/},${_lt_dummy%/*},${_lt_dummy#??}"${_lt_dummy%"$_lt_dummy"}, \
- = c,a/b,b/c, \
- && eval 'test $(( 1 + 1 )) -eq 2 \
- && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \
- && xsi_shell=yes
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xsi_shell" >&5
-$as_echo "$xsi_shell" >&6; }
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands \"+=\"" >&5
-$as_echo_n "checking whether the shell understands \"+=\"... " >&6; }
-lt_shell_append=no
-( foo=bar; set foo baz; eval "$1+=\$2" && test "$foo" = barbaz ) \
- >/dev/null 2>&1 \
- && lt_shell_append=yes
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_shell_append" >&5
-$as_echo "$lt_shell_append" >&6; }
-
-
if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
lt_unset=unset
else
reload_cmds='$LD$reload_flag -o $output$reload_objs'
case $host_os in
cygwin* | mingw* | pw32* | cegcc*)
- if test "$GCC" != yes; then
+ if test yes != "$GCC"; then
reload_cmds=false
fi
;;
darwin*)
- if test "$GCC" = yes; then
- reload_cmds='$LTCC $LTCFLAGS -nostdlib ${wl}-r -o $output$reload_objs'
+ if test yes = "$GCC"; then
+ reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs'
else
reload_cmds='$LD$reload_flag -o $output$reload_objs'
fi
# Need to set the preceding variable on all platforms that support
# interlibrary dependencies.
# 'none' -- dependencies not supported.
-# `unknown' -- same as none, but documents that we really don't know.
+# 'unknown' -- same as none, but documents that we really don't know.
# 'pass_all' -- all dependencies passed with no checks.
# 'test_compile' -- check by making test program.
# 'file_magic [[regex]]' -- check by looking for files in library path
-# which responds to the $file_magic_cmd with a given extended regex.
-# If you have `file' or equivalent on your system and you're not sure
-# whether `pass_all' will *always* work, you probably want this one.
+# that responds to the $file_magic_cmd with a given extended regex.
+# If you have 'file' or equivalent on your system and you're not sure
+# whether 'pass_all' will *always* work, you probably want this one.
case $host_os in
aix[4-9]*)
# Base MSYS/MinGW do not provide the 'file' command needed by
# func_win32_libid shell function, so use a weaker test based on 'objdump',
# unless we find 'file', for example because we are cross-compiling.
- # func_win32_libid assumes BSD nm, so disallow it if using MS dumpbin.
- if ( test "$lt_cv_nm_interface" = "BSD nm" && file / ) >/dev/null 2>&1; then
+ if ( file / ) >/dev/null 2>&1; then
lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
lt_cv_file_magic_cmd='func_win32_libid'
else
fi
;;
-gnu*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
haiku*)
lt_cv_deplibs_check_method=pass_all
;;
;;
# This must be glibc/ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
lt_cv_deplibs_check_method=pass_all
;;
lt_cv_deplibs_check_method=pass_all
;;
-openbsd*)
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+openbsd* | bitrig*)
+ if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$'
else
lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
tpf*)
lt_cv_deplibs_check_method=pass_all
;;
+os2*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
esac
fi
case $host_os in
cygwin* | mingw* | pw32* | cegcc*)
- # two different shell functions defined in ltmain.sh
- # decide which to use based on capabilities of $DLLTOOL
+ # two different shell functions defined in ltmain.sh;
+ # decide which one to use based on capabilities of $DLLTOOL
case `$DLLTOOL --help 2>&1` in
*--identify-strict*)
lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
;;
*)
# fallback: assume linklib IS sharedlib
- lt_cv_sharedlib_from_linklib_cmd="$ECHO"
+ lt_cv_sharedlib_from_linklib_cmd=$ECHO
;;
esac
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }
- if test "$ac_status" -eq 0; then
+ if test 0 -eq "$ac_status"; then
# Ensure the archiver fails upon bogus file names.
rm -f conftest.$ac_objext libconftest.a
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }
- if test "$ac_status" -ne 0; then
+ if test 0 -ne "$ac_status"; then
lt_cv_ar_at_file=@
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5
$as_echo "$lt_cv_ar_at_file" >&6; }
-if test "x$lt_cv_ar_at_file" = xno; then
+if test no = "$lt_cv_ar_at_file"; then
archiver_list_spec=
else
archiver_list_spec=$lt_cv_ar_at_file
if test -n "$RANLIB"; then
case $host_os in
- openbsd*)
+ bitrig* | openbsd*)
old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
;;
*)
symcode='[ABCDGISTW]'
;;
hpux*)
- if test "$host_cpu" = ia64; then
+ if test ia64 = "$host_cpu"; then
symcode='[ABCDEGRST]'
fi
;;
symcode='[ABCDGIRSTW]' ;;
esac
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+ # Gets list of data symbols to import.
+ lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'"
+ # Adjust the below global symbol transforms to fixup imported variables.
+ lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'"
+ lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'"
+ lt_c_name_lib_hook="\
+ -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\
+ -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'"
+else
+ # Disable hooks by default.
+ lt_cv_sys_global_symbol_to_import=
+ lt_cdecl_hook=
+ lt_c_name_hook=
+ lt_c_name_lib_hook=
+fi
+
# Transform an extracted symbol line into a proper C declaration.
# Some systems (esp. on ia64) link data and code symbols differently,
# so use this general approach.
-lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
+lt_cv_sys_global_symbol_to_cdecl="sed -n"\
+$lt_cdecl_hook\
+" -e 's/^T .* \(.*\)$/extern int \1();/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'"
# Transform an extracted symbol line into symbol name and symbol address
-lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([^ ]*\)[ ]*$/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/ {\"\2\", (void *) \&\2},/p'"
-lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([^ ]*\)[ ]*$/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \(lib[^ ]*\)$/ {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/ {\"lib\2\", (void *) \&\2},/p'"
+lt_cv_sys_global_symbol_to_c_name_address="sed -n"\
+$lt_c_name_hook\
+" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'"
+
+# Transform an extracted symbol line into symbol name with lib prefix and
+# symbol address.
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\
+$lt_c_name_lib_hook\
+" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'"
# Handle CRLF in mingw tool chain
opt_cr=
# Write the raw and C identifiers.
if test "$lt_cv_nm_interface" = "MS dumpbin"; then
- # Fake it for dumpbin and say T for any non-static function
- # and D for any global variable.
+ # Fake it for dumpbin and say T for any non-static function,
+ # D for any global variable and I for any imported variable.
# Also find C++ and __fastcall symbols from MSVC++,
# which start with @ or ?.
lt_cv_sys_global_symbol_pipe="$AWK '"\
" {last_section=section; section=\$ 3};"\
" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
+" /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\
+" /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\
+" /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\
" \$ 0!~/External *\|/{next};"\
" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
" {if(hide[section]) next};"\
-" {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\
-" {split(\$ 0, a, /\||\r/); split(a[2], s)};"\
-" s[1]~/^[@?]/{print s[1], s[1]; next};"\
-" s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\
+" {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\
+" {split(\$ 0,a,/\||\r/); split(a[2],s)};"\
+" s[1]~/^[@?]/{print f,s[1],s[1]; next};"\
+" s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\
" ' prfx=^$ac_symprfx"
else
lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode$symcode*\)[ ][ ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
cat <<_LT_EOF > conftest.$ac_ext
/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */
-#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE)
-/* DATA imports from DLLs on WIN32 con't be const, because runtime
+#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
+/* DATA imports from DLLs on WIN32 can't be const, because runtime
relocations are performed -- see ld's documentation on pseudo-relocs. */
# define LT_DLSYM_CONST
-#elif defined(__osf__)
+#elif defined __osf__
/* This system does not cope well with relocations in const data. */
# define LT_DLSYM_CONST
#else
{
{ "@PROGRAM@", (void *) 0 },
_LT_EOF
- $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/ {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
+ $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
cat <<\_LT_EOF >> conftest.$ac_ext
{0, (void *) 0}
};
mv conftest.$ac_objext conftstm.$ac_objext
lt_globsym_save_LIBS=$LIBS
lt_globsym_save_CFLAGS=$CFLAGS
- LIBS="conftstm.$ac_objext"
+ LIBS=conftstm.$ac_objext
CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag"
if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
(eval $ac_link) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; } && test -s conftest${ac_exeext}; then
+ test $ac_status = 0; } && test -s conftest$ac_exeext; then
pipe_works=yes
fi
LIBS=$lt_globsym_save_LIBS
rm -rf conftest* conftst*
# Do not use the global_symbol_pipe unless it works.
- if test "$pipe_works" = yes; then
+ if test yes = "$pipe_works"; then
break
else
lt_cv_sys_global_symbol_pipe=
+
+
+
+
+
+
+
+
+
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5
$as_echo_n "checking for sysroot... " >&6; }
lt_sysroot=
-case ${with_sysroot} in #(
+case $with_sysroot in #(
yes)
- if test "$GCC" = yes; then
+ if test yes = "$GCC"; then
lt_sysroot=`$CC --print-sysroot 2>/dev/null`
fi
;; #(
no|'')
;; #(
*)
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${with_sysroot}" >&5
-$as_echo "${with_sysroot}" >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_sysroot" >&5
+$as_echo "$with_sysroot" >&6; }
as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5
;;
esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a working dd" >&5
+$as_echo_n "checking for a working dd... " >&6; }
+if ${ac_cv_path_lt_DD+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+: ${lt_DD:=$DD}
+if test -z "$lt_DD"; then
+ ac_path_lt_DD_found=false
+ # Loop through the user's path and test for each of PROGNAME-LIST
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_prog in dd; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ ac_path_lt_DD="$as_dir/$ac_prog$ac_exec_ext"
+ as_fn_executable_p "$ac_path_lt_DD" || continue
+if "$ac_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
+ cmp -s conftest.i conftest.out \
+ && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=:
+fi
+ $ac_path_lt_DD_found && break 3
+ done
+ done
+ done
+IFS=$as_save_IFS
+ if test -z "$ac_cv_path_lt_DD"; then
+ :
+ fi
+else
+ ac_cv_path_lt_DD=$lt_DD
+fi
+
+rm -f conftest.i conftest2.i conftest.out
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_lt_DD" >&5
+$as_echo "$ac_cv_path_lt_DD" >&6; }
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to truncate binary pipes" >&5
+$as_echo_n "checking how to truncate binary pipes... " >&6; }
+if ${lt_cv_truncate_bin+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+lt_cv_truncate_bin=
+if "$ac_cv_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
+ cmp -s conftest.i conftest.out \
+ && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1"
+fi
+rm -f conftest.i conftest2.i conftest.out
+test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_truncate_bin" >&5
+$as_echo "$lt_cv_truncate_bin" >&6; }
+
+
+
+
+
+
+
+# Calculate cc_basename. Skip known compiler wrappers and cross-prefix.
+func_cc_basename ()
+{
+ for cc_temp in $*""; do
+ case $cc_temp in
+ compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+ distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+ \-*) ;;
+ *) break;;
+ esac
+ done
+ func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+}
+
# Check whether --enable-libtool-lock was given.
if test "${enable_libtool_lock+set}" = set; then :
enableval=$enable_libtool_lock;
fi
-test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
+test no = "$enable_libtool_lock" || enable_libtool_lock=yes
# Some flags need to be propagated to the compiler or linker for good
# libtool support.
case $host in
ia64-*-hpux*)
- # Find out which ABI we are using.
+ # Find out what ABI is being produced by ac_compile, and set mode
+ # options accordingly.
echo 'int i;' > conftest.$ac_ext
if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
(eval $ac_compile) 2>&5
test $ac_status = 0; }; then
case `/usr/bin/file conftest.$ac_objext` in
*ELF-32*)
- HPUX_IA64_MODE="32"
+ HPUX_IA64_MODE=32
;;
*ELF-64*)
- HPUX_IA64_MODE="64"
+ HPUX_IA64_MODE=64
;;
esac
fi
rm -rf conftest*
;;
*-*-irix6*)
- # Find out which ABI we are using.
+ # Find out what ABI is being produced by ac_compile, and set linker
+ # options accordingly.
echo '#line '$LINENO' "configure"' > conftest.$ac_ext
if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
(eval $ac_compile) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; then
- if test "$lt_cv_prog_gnu_ld" = yes; then
+ if test yes = "$lt_cv_prog_gnu_ld"; then
case `/usr/bin/file conftest.$ac_objext` in
*32-bit*)
LD="${LD-ld} -melf32bsmip"
rm -rf conftest*
;;
-x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
+mips64*-*linux*)
+ # Find out what ABI is being produced by ac_compile, and set linker
+ # options accordingly.
+ echo '#line '$LINENO' "configure"' > conftest.$ac_ext
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ emul=elf
+ case `/usr/bin/file conftest.$ac_objext` in
+ *32-bit*)
+ emul="${emul}32"
+ ;;
+ *64-bit*)
+ emul="${emul}64"
+ ;;
+ esac
+ case `/usr/bin/file conftest.$ac_objext` in
+ *MSB*)
+ emul="${emul}btsmip"
+ ;;
+ *LSB*)
+ emul="${emul}ltsmip"
+ ;;
+ esac
+ case `/usr/bin/file conftest.$ac_objext` in
+ *N32*)
+ emul="${emul}n32"
+ ;;
+ esac
+ LD="${LD-ld} -m $emul"
+ fi
+ rm -rf conftest*
+ ;;
+
+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
- # Find out which ABI we are using.
+ # Find out what ABI is being produced by ac_compile, and set linker
+ # options accordingly. Note that the listed cases only cover the
+ # situations where additional linker options are needed (such as when
+ # doing 32-bit compilation for a host where ld defaults to 64-bit, or
+ # vice versa); the common cases where no linker options are needed do
+ # not appear in the list.
echo 'int i;' > conftest.$ac_ext
if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
(eval $ac_compile) 2>&5
LD="${LD-ld} -m elf_i386_fbsd"
;;
x86_64-*linux*)
- LD="${LD-ld} -m elf_i386"
+ case `/usr/bin/file conftest.o` in
+ *x86-64*)
+ LD="${LD-ld} -m elf32_x86_64"
+ ;;
+ *)
+ LD="${LD-ld} -m elf_i386"
+ ;;
+ esac
;;
- ppc64-*linux*|powerpc64-*linux*)
+ powerpc64le-*linux*)
+ LD="${LD-ld} -m elf32lppclinux"
+ ;;
+ powerpc64-*linux*)
LD="${LD-ld} -m elf32ppclinux"
;;
s390x-*linux*)
x86_64-*linux*)
LD="${LD-ld} -m elf_x86_64"
;;
- ppc*-*linux*|powerpc*-*linux*)
+ powerpcle-*linux*)
+ LD="${LD-ld} -m elf64lppc"
+ ;;
+ powerpc-*linux*)
LD="${LD-ld} -m elf64ppc"
;;
s390*-*linux*|s390*-*tpf*)
*-*-sco3.2v5*)
# On SCO OpenServer 5, we need -belf to get full-featured binaries.
- SAVE_CFLAGS="$CFLAGS"
+ SAVE_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -belf"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5
$as_echo_n "checking whether the C compiler needs -belf... " >&6; }
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5
$as_echo "$lt_cv_cc_needs_belf" >&6; }
- if test x"$lt_cv_cc_needs_belf" != x"yes"; then
+ if test yes != "$lt_cv_cc_needs_belf"; then
# this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
- CFLAGS="$SAVE_CFLAGS"
+ CFLAGS=$SAVE_CFLAGS
fi
;;
*-*solaris*)
- # Find out which ABI we are using.
+ # Find out what ABI is being produced by ac_compile, and set linker
+ # options accordingly.
echo 'int i;' > conftest.$ac_ext
if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
(eval $ac_compile) 2>&5
case $lt_cv_prog_gnu_ld in
yes*)
case $host in
- i?86-*-solaris*)
+ i?86-*-solaris*|x86_64-*-solaris*)
LD="${LD-ld} -m elf_x86_64"
;;
sparc*-*-solaris*)
esac
# GNU ld 2.21 introduced _sol2 emulations. Use them if available.
if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
- LD="${LD-ld}_sol2"
+ LD=${LD-ld}_sol2
fi
;;
*)
;;
esac
-need_locks="$enable_libtool_lock"
+need_locks=$enable_libtool_lock
if test -n "$ac_tool_prefix"; then
# Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args.
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5
$as_echo "$lt_cv_path_mainfest_tool" >&6; }
-if test "x$lt_cv_path_mainfest_tool" != xyes; then
+if test yes != "$lt_cv_path_mainfest_tool"; then
MANIFEST_TOOL=:
fi
$as_echo_n "(cached) " >&6
else
lt_cv_apple_cc_single_mod=no
- if test -z "${LT_MULTI_MODULE}"; then
+ if test -z "$LT_MULTI_MODULE"; then
# By default we will add the -single_module flag. You can override
# by either setting the environment variable LT_MULTI_MODULE
# non-empty at configure time, or by adding -multi_module to the
cat conftest.err >&5
# Otherwise, if the output was created with a 0 exit code from
# the compiler, it worked.
- elif test -f libconftest.dylib && test $_lt_result -eq 0; then
+ elif test -f libconftest.dylib && test 0 = "$_lt_result"; then
lt_cv_apple_cc_single_mod=yes
else
cat conftest.err >&5
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
- LDFLAGS="$save_LDFLAGS"
+ LDFLAGS=$save_LDFLAGS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5
_lt_result=$?
if test -s conftest.err && $GREP force_load conftest.err; then
cat conftest.err >&5
- elif test -f conftest && test $_lt_result -eq 0 && $GREP forced_load conftest >/dev/null 2>&1 ; then
+ elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then
lt_cv_ld_force_load=yes
else
cat conftest.err >&5
$as_echo "$lt_cv_ld_force_load" >&6; }
case $host_os in
rhapsody* | darwin1.[012])
- _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
+ _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;;
darwin1.*)
- _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+ _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
darwin*) # darwin 5.x on
# if running on 10.5 or later, the deployment target defaults
# to the OS version, if on x86, and 10.4, the deployment
# target defaults to 10.4. Don't you love it?
case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
10.0,*86*-darwin8*|10.0,*-darwin[91]*)
- _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
- 10.[012]*)
- _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+ _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+ 10.[012][,.]*)
+ _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
10.*)
- _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+ _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
esac
;;
esac
- if test "$lt_cv_apple_cc_single_mod" = "yes"; then
+ if test yes = "$lt_cv_apple_cc_single_mod"; then
_lt_dar_single_mod='$single_module'
fi
- if test "$lt_cv_ld_exported_symbols_list" = "yes"; then
- _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym'
+ if test yes = "$lt_cv_ld_exported_symbols_list"; then
+ _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym'
else
- _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}'
+ _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib'
fi
- if test "$DSYMUTIL" != ":" && test "$lt_cv_ld_force_load" = "no"; then
+ if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then
_lt_dsymutil='~$DSYMUTIL $lib || :'
else
_lt_dsymutil=
;;
esac
+# func_munge_path_list VARIABLE PATH
+# -----------------------------------
+# VARIABLE is name of variable containing _space_ separated list of
+# directories to be munged by the contents of PATH, which is string
+# having a format:
+# "DIR[:DIR]:"
+# string "DIR[ DIR]" will be prepended to VARIABLE
+# ":DIR[:DIR]"
+# string "DIR[ DIR]" will be appended to VARIABLE
+# "DIRP[:DIRP]::[DIRA:]DIRA"
+# string "DIRP[ DIRP]" will be prepended to VARIABLE and string
+# "DIRA[ DIRA]" will be appended to VARIABLE
+# "DIR[:DIR]"
+# VARIABLE will be replaced by "DIR[ DIR]"
+func_munge_path_list ()
+{
+ case x$2 in
+ x)
+ ;;
+ *:)
+ eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\"
+ ;;
+ x:*)
+ eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\"
+ ;;
+ *::*)
+ eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
+ eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\"
+ ;;
+ *)
+ eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\"
+ ;;
+ esac
+}
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
$as_echo_n "checking for ANSI C header files... " >&6; }
*)
enable_shared=no
# Look at the argument we got. We use all the common list separators.
- lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+ lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
for pkg in $enableval; do
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
if test "X$pkg" = "X$p"; then
enable_shared=yes
fi
done
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
;;
esac
else
*)
enable_static=no
# Look at the argument we got. We use all the common list separators.
- lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+ lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
for pkg in $enableval; do
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
if test "X$pkg" = "X$p"; then
enable_static=yes
fi
done
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
;;
esac
else
*)
pic_mode=default
# Look at the argument we got. We use all the common list separators.
- lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+ lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
for lt_pkg in $withval; do
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
if test "X$lt_pkg" = "X$lt_p"; then
pic_mode=yes
fi
done
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
;;
esac
else
fi
-test -z "$pic_mode" && pic_mode=default
-
*)
enable_fast_install=no
# Look at the argument we got. We use all the common list separators.
- lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+ lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
for pkg in $enableval; do
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
if test "X$pkg" = "X$p"; then
enable_fast_install=yes
fi
done
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
;;
esac
else
+ shared_archive_member_spec=
+case $host,$enable_shared in
+power*-*-aix[5-9]*,yes)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking which variant of shared library versioning to provide" >&5
+$as_echo_n "checking which variant of shared library versioning to provide... " >&6; }
+
+# Check whether --with-aix-soname was given.
+if test "${with_aix_soname+set}" = set; then :
+ withval=$with_aix_soname; case $withval in
+ aix|svr4|both)
+ ;;
+ *)
+ as_fn_error $? "Unknown argument to --with-aix-soname" "$LINENO" 5
+ ;;
+ esac
+ lt_cv_with_aix_soname=$with_aix_soname
+else
+ if ${lt_cv_with_aix_soname+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_with_aix_soname=aix
+fi
+
+ with_aix_soname=$lt_cv_with_aix_soname
+fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_aix_soname" >&5
+$as_echo "$with_aix_soname" >&6; }
+ if test aix != "$with_aix_soname"; then
+ # For the AIX way of multilib, we name the shared archive member
+ # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o',
+ # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File.
+ # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag,
+ # the AIX toolchain works better with OBJECT_MODE set (default 32).
+ if test 64 = "${OBJECT_MODE-32}"; then
+ shared_archive_member_spec=shr_64
+ else
+ shared_archive_member_spec=shr
+ fi
+ fi
+ ;;
+*)
+ with_aix_soname=aix
+ ;;
+esac
+
+
+
+
+
+
+
# This can be used to rebuild libtool when needed
-LIBTOOL_DEPS="$ltmain"
+LIBTOOL_DEPS=$ltmain
# Always use our own libtool.
LIBTOOL='$(SHELL) $(top_builddir)/libtool'
-if test -n "${ZSH_VERSION+set}" ; then
+if test -n "${ZSH_VERSION+set}"; then
setopt NO_GLOB_SUBST
fi
# AIX sometimes has problems with the GCC collect2 program. For some
# reason, if we set the COLLECT_NAMES environment variable, the problems
# vanish in a puff of smoke.
- if test "X${COLLECT_NAMES+set}" != Xset; then
+ if test set != "${COLLECT_NAMES+set}"; then
COLLECT_NAMES=
export COLLECT_NAMES
fi
ofile=libtool
can_build_shared=yes
-# All known linkers require a `.a' archive for static linking (except MSVC,
+# All known linkers require a '.a' archive for static linking (except MSVC,
# which needs '.lib').
libext=a
-with_gnu_ld="$lt_cv_prog_gnu_ld"
+with_gnu_ld=$lt_cv_prog_gnu_ld
-old_CC="$CC"
-old_CFLAGS="$CFLAGS"
+old_CC=$CC
+old_CFLAGS=$CFLAGS
# Set sane defaults for various variables
test -z "$CC" && CC=cc
test -z "$LD" && LD=ld
test -z "$ac_objext" && ac_objext=o
-for cc_temp in $compiler""; do
- case $cc_temp in
- compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
- distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
- \-*) ;;
- *) break;;
- esac
-done
-cc_basename=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+func_cc_basename $compiler
+cc_basename=$func_cc_basename_result
# Only perform the check for file, if the check method requires it
else
case $MAGIC_CMD in
[\\/*] | ?:[\\/]*)
- lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
+ lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
;;
*)
- lt_save_MAGIC_CMD="$MAGIC_CMD"
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+ lt_save_MAGIC_CMD=$MAGIC_CMD
+ lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
for ac_dir in $ac_dummy; do
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
test -z "$ac_dir" && ac_dir=.
- if test -f $ac_dir/${ac_tool_prefix}file; then
- lt_cv_path_MAGIC_CMD="$ac_dir/${ac_tool_prefix}file"
+ if test -f "$ac_dir/${ac_tool_prefix}file"; then
+ lt_cv_path_MAGIC_CMD=$ac_dir/"${ac_tool_prefix}file"
if test -n "$file_magic_test_file"; then
case $deplibs_check_method in
"file_magic "*)
file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
- MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+ MAGIC_CMD=$lt_cv_path_MAGIC_CMD
if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
$EGREP "$file_magic_regex" > /dev/null; then
:
break
fi
done
- IFS="$lt_save_ifs"
- MAGIC_CMD="$lt_save_MAGIC_CMD"
+ IFS=$lt_save_ifs
+ MAGIC_CMD=$lt_save_MAGIC_CMD
;;
esac
fi
-MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+MAGIC_CMD=$lt_cv_path_MAGIC_CMD
if test -n "$MAGIC_CMD"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
$as_echo "$MAGIC_CMD" >&6; }
else
case $MAGIC_CMD in
[\\/*] | ?:[\\/]*)
- lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
+ lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
;;
*)
- lt_save_MAGIC_CMD="$MAGIC_CMD"
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+ lt_save_MAGIC_CMD=$MAGIC_CMD
+ lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
for ac_dir in $ac_dummy; do
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
test -z "$ac_dir" && ac_dir=.
- if test -f $ac_dir/file; then
- lt_cv_path_MAGIC_CMD="$ac_dir/file"
+ if test -f "$ac_dir/file"; then
+ lt_cv_path_MAGIC_CMD=$ac_dir/"file"
if test -n "$file_magic_test_file"; then
case $deplibs_check_method in
"file_magic "*)
file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
- MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+ MAGIC_CMD=$lt_cv_path_MAGIC_CMD
if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
$EGREP "$file_magic_regex" > /dev/null; then
:
break
fi
done
- IFS="$lt_save_ifs"
- MAGIC_CMD="$lt_save_MAGIC_CMD"
+ IFS=$lt_save_ifs
+ MAGIC_CMD=$lt_save_MAGIC_CMD
;;
esac
fi
-MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+MAGIC_CMD=$lt_cv_path_MAGIC_CMD
if test -n "$MAGIC_CMD"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
$as_echo "$MAGIC_CMD" >&6; }
# Use C for the default configuration in the libtool script
-lt_save_CC="$CC"
+lt_save_CC=$CC
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
lt_prog_compiler_no_builtin_flag=
-if test "$GCC" = yes; then
+if test yes = "$GCC"; then
case $cc_basename in
nvcc*)
lt_prog_compiler_no_builtin_flag=' -Xcompiler -fno-builtin' ;;
lt_cv_prog_compiler_rtti_exceptions=no
ac_outfile=conftest.$ac_objext
echo "$lt_simple_compile_test_code" > conftest.$ac_ext
- lt_compiler_flag="-fno-rtti -fno-exceptions"
+ lt_compiler_flag="-fno-rtti -fno-exceptions" ## exclude from sc_useless_quotes_in_assignment
# Insert the option either (1) after the last *FLAGS variable, or
# (2) before a word containing "conftest.", or (3) at the end.
# Note that $ac_compile itself does not contain backslashes and begins
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5
$as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; }
-if test x"$lt_cv_prog_compiler_rtti_exceptions" = xyes; then
+if test yes = "$lt_cv_prog_compiler_rtti_exceptions"; then
lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions"
else
:
lt_prog_compiler_static=
- if test "$GCC" = yes; then
+ if test yes = "$GCC"; then
lt_prog_compiler_wl='-Wl,'
lt_prog_compiler_static='-static'
case $host_os in
aix*)
# All AIX code is PIC.
- if test "$host_cpu" = ia64; then
+ if test ia64 = "$host_cpu"; then
# AIX 5 now supports IA64 processor
lt_prog_compiler_static='-Bstatic'
fi
+ lt_prog_compiler_pic='-fPIC'
;;
amigaos*)
;;
m68k)
# FIXME: we need at least 68020 code to build shared libraries, but
- # adding the `-m68020' flag to GCC prevents building anything better,
- # like `-m68040'.
+ # adding the '-m68020' flag to GCC prevents building anything better,
+ # like '-m68040'.
lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4'
;;
esac
# Although the cygwin gcc ignores -fPIC, still need this for old-style
# (--disable-auto-import) libraries
lt_prog_compiler_pic='-DDLL_EXPORT'
+ case $host_os in
+ os2*)
+ lt_prog_compiler_static='$wl-static'
+ ;;
+ esac
;;
darwin* | rhapsody*)
case $host_os in
aix*)
lt_prog_compiler_wl='-Wl,'
- if test "$host_cpu" = ia64; then
+ if test ia64 = "$host_cpu"; then
# AIX 5 now supports IA64 processor
lt_prog_compiler_static='-Bstatic'
else
fi
;;
+ darwin* | rhapsody*)
+ # PIC is the default on this platform
+ # Common symbols not allowed in MH_DYLIB files
+ lt_prog_compiler_pic='-fno-common'
+ case $cc_basename in
+ nagfor*)
+ # NAG Fortran compiler
+ lt_prog_compiler_wl='-Wl,-Wl,,'
+ lt_prog_compiler_pic='-PIC'
+ lt_prog_compiler_static='-Bstatic'
+ ;;
+ esac
+ ;;
+
mingw* | cygwin* | pw32* | os2* | cegcc*)
# This hack is so that the source file can tell whether it is being
# built for inclusion in a dll (and should export symbols for example).
lt_prog_compiler_pic='-DDLL_EXPORT'
+ case $host_os in
+ os2*)
+ lt_prog_compiler_static='$wl-static'
+ ;;
+ esac
;;
hpux9* | hpux10* | hpux11*)
;;
esac
# Is there a better lt_prog_compiler_static that works with the bundled CC?
- lt_prog_compiler_static='${wl}-a ${wl}archive'
+ lt_prog_compiler_static='$wl-a ${wl}archive'
;;
irix5* | irix6* | nonstopux*)
lt_prog_compiler_static='-non_shared'
;;
- linux* | k*bsd*-gnu | kopensolaris*-gnu)
+ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
case $cc_basename in
- # old Intel for x86_64 which still supported -KPIC.
+ # old Intel for x86_64, which still supported -KPIC.
ecc*)
lt_prog_compiler_wl='-Wl,'
lt_prog_compiler_pic='-KPIC'
lt_prog_compiler_pic='-PIC'
lt_prog_compiler_static='-Bstatic'
;;
+ tcc*)
+ # Fabrice Bellard et al's Tiny C Compiler
+ lt_prog_compiler_wl='-Wl,'
+ lt_prog_compiler_pic='-fPIC'
+ lt_prog_compiler_static='-static'
+ ;;
pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
# Portland Group compilers (*not* the Pentium gcc compiler,
# which looks to be a dead project)
;;
sysv4*MP*)
- if test -d /usr/nec ;then
+ if test -d /usr/nec; then
lt_prog_compiler_pic='-Kconform_pic'
lt_prog_compiler_static='-Bstatic'
fi
fi
case $host_os in
- # For platforms which do not support PIC, -DPIC is meaningless:
+ # For platforms that do not support PIC, -DPIC is meaningless:
*djgpp*)
lt_prog_compiler_pic=
;;
lt_cv_prog_compiler_pic_works=no
ac_outfile=conftest.$ac_objext
echo "$lt_simple_compile_test_code" > conftest.$ac_ext
- lt_compiler_flag="$lt_prog_compiler_pic -DPIC"
+ lt_compiler_flag="$lt_prog_compiler_pic -DPIC" ## exclude from sc_useless_quotes_in_assignment
# Insert the option either (1) after the last *FLAGS variable, or
# (2) before a word containing "conftest.", or (3) at the end.
# Note that $ac_compile itself does not contain backslashes and begins
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5
$as_echo "$lt_cv_prog_compiler_pic_works" >&6; }
-if test x"$lt_cv_prog_compiler_pic_works" = xyes; then
+if test yes = "$lt_cv_prog_compiler_pic_works"; then
case $lt_prog_compiler_pic in
"" | " "*) ;;
*) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;;
$as_echo_n "(cached) " >&6
else
lt_cv_prog_compiler_static_works=no
- save_LDFLAGS="$LDFLAGS"
+ save_LDFLAGS=$LDFLAGS
LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
echo "$lt_simple_link_test_code" > conftest.$ac_ext
if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
fi
fi
$RM -r conftest*
- LDFLAGS="$save_LDFLAGS"
+ LDFLAGS=$save_LDFLAGS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5
$as_echo "$lt_cv_prog_compiler_static_works" >&6; }
-if test x"$lt_cv_prog_compiler_static_works" = xyes; then
+if test yes = "$lt_cv_prog_compiler_static_works"; then
:
else
lt_prog_compiler_static=
-hard_links="nottested"
-if test "$lt_cv_prog_compiler_c_o" = no && test "$need_locks" != no; then
+hard_links=nottested
+if test no = "$lt_cv_prog_compiler_c_o" && test no != "$need_locks"; then
# do not overwrite the value of need_locks provided by the user
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
$as_echo_n "checking if we can lock with hard links... " >&6; }
ln conftest.a conftest.b 2>/dev/null && hard_links=no
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
$as_echo "$hard_links" >&6; }
- if test "$hard_links" = no; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5
-$as_echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;}
+ if test no = "$hard_links"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&5
+$as_echo "$as_me: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&2;}
need_locks=warn
fi
else
# included in the symbol list
include_expsyms=
# exclude_expsyms can be an extended regexp of symbols to exclude
- # it will be wrapped by ` (' and `)$', so one must not match beginning or
- # end of line. Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
- # as well as any symbol that contains `d'.
+ # it will be wrapped by ' (' and ')$', so one must not match beginning or
+ # end of line. Example: 'a|bc|.*d.*' will exclude the symbols 'a' and 'bc',
+ # as well as any symbol that contains 'd'.
exclude_expsyms='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
# Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
# platforms (ab)use it in PIC code, but their linkers get confused if
# FIXME: the MSVC++ port hasn't been tested in a loooong time
# When not using gcc, we currently assume that we are using
# Microsoft Visual C++.
- if test "$GCC" != yes; then
+ if test yes != "$GCC"; then
with_gnu_ld=no
fi
;;
# we just hope/assume this is gcc and not c89 (= MSVC++)
with_gnu_ld=yes
;;
- openbsd*)
+ openbsd* | bitrig*)
with_gnu_ld=no
;;
esac
# On some targets, GNU ld is compatible enough with the native linker
# that we're better off using the native interface for both.
lt_use_gnu_ld_interface=no
- if test "$with_gnu_ld" = yes; then
+ if test yes = "$with_gnu_ld"; then
case $host_os in
aix*)
# The AIX port of GNU ld has always aspired to compatibility
esac
fi
- if test "$lt_use_gnu_ld_interface" = yes; then
+ if test yes = "$lt_use_gnu_ld_interface"; then
# If archive_cmds runs LD, not CC, wlarc should be empty
- wlarc='${wl}'
+ wlarc='$wl'
# Set some defaults for GNU ld with shared library support. These
# are reset later if shared libraries are not supported. Putting them
# here allows them to be overridden if necessary.
runpath_var=LD_RUN_PATH
- hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
- export_dynamic_flag_spec='${wl}--export-dynamic'
+ hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+ export_dynamic_flag_spec='$wl--export-dynamic'
# ancient GNU ld didn't support --whole-archive et. al.
if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
- whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+ whole_archive_flag_spec=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
else
whole_archive_flag_spec=
fi
supports_anon_versioning=no
- case `$LD -v 2>&1` in
+ case `$LD -v | $SED -e 's/(^)\+)\s\+//' 2>&1` in
*GNU\ gold*) supports_anon_versioning=yes ;;
*\ [01].* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11
*\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
case $host_os in
aix[3-9]*)
# On AIX/PPC, the GNU linker is very broken
- if test "$host_cpu" != ia64; then
+ if test ia64 != "$host_cpu"; then
ld_shlibs=no
cat <<_LT_EOF 1>&2
case $host_cpu in
powerpc)
# see comment about AmigaOS4 .so support
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+ archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
archive_expsym_cmds=''
;;
m68k)
allow_undefined_flag=unsupported
# Joseph Beckenbach <jrb3@best.com> says some releases of gcc
# support --undefined. This deserves some investigation. FIXME
- archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+ archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
else
ld_shlibs=no
fi
# _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless,
# as there is no search path for DLLs.
hardcode_libdir_flag_spec='-L$libdir'
- export_dynamic_flag_spec='${wl}--export-all-symbols'
+ export_dynamic_flag_spec='$wl--export-all-symbols'
allow_undefined_flag=unsupported
always_export_symbols=no
enable_shared_with_static_runtimes=yes
exclude_expsyms='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'
if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- # If the export-symbols file already is a .def file (1st line
- # is EXPORTS), use it as is; otherwise, prepend...
- archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
- cp $export_symbols $output_objdir/$soname.def;
- else
- echo EXPORTS > $output_objdir/$soname.def;
- cat $export_symbols >> $output_objdir/$soname.def;
- fi~
- $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+ archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+ # If the export-symbols file already is a .def file, use it as
+ # is; otherwise, prepend EXPORTS...
+ archive_expsym_cmds='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then
+ cp $export_symbols $output_objdir/$soname.def;
+ else
+ echo EXPORTS > $output_objdir/$soname.def;
+ cat $export_symbols >> $output_objdir/$soname.def;
+ fi~
+ $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
else
ld_shlibs=no
fi
;;
haiku*)
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+ archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
link_all_deplibs=yes
;;
+ os2*)
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_minus_L=yes
+ allow_undefined_flag=unsupported
+ shrext_cmds=.dll
+ archive_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ archive_expsym_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ prefix_cmds="$SED"~
+ if test EXPORTS = "`$SED 1q $export_symbols`"; then
+ prefix_cmds="$prefix_cmds -e 1d";
+ fi~
+ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+ enable_shared_with_static_runtimes=yes
+ ;;
+
interix[3-9]*)
hardcode_direct=no
hardcode_shlibpath_var=no
- hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
- export_dynamic_flag_spec='${wl}-E'
+ hardcode_libdir_flag_spec='$wl-rpath,$libdir'
+ export_dynamic_flag_spec='$wl-E'
# Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
# Instead, shared libraries are loaded at an image base (0x10000000 by
# default) and relocated if they conflict, which is a slow very memory
# consuming and fragmenting process. To avoid this, we pick a random,
# 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
# time. Moving up from 0x10000000 also allows more sbrk(2) space.
- archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+ archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+ archive_expsym_cmds='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
;;
gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
tmp_diet=no
- if test "$host_os" = linux-dietlibc; then
+ if test linux-dietlibc = "$host_os"; then
case $cc_basename in
diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn)
esac
fi
if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
- && test "$tmp_diet" = no
+ && test no = "$tmp_diet"
then
tmp_addflag=' $pic_flag'
tmp_sharedflag='-shared'
case $cc_basename,$host_cpu in
pgcc*) # Portland Group C compiler
- whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+ whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
tmp_addflag=' $pic_flag'
;;
pgf77* | pgf90* | pgf95* | pgfortran*)
# Portland Group f77 and f90 compilers
- whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+ whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
tmp_addflag=' $pic_flag -Mnomain' ;;
ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64
tmp_addflag=' -i_dynamic' ;;
lf95*) # Lahey Fortran 8.1
whole_archive_flag_spec=
tmp_sharedflag='--shared' ;;
+ nagfor*) # NAGFOR 5.3
+ tmp_sharedflag='-Wl,-shared' ;;
xl[cC]* | bgxl[cC]* | mpixl[cC]*) # IBM XL C 8.0 on PPC (deal with xlf below)
tmp_sharedflag='-qmkshrobj'
tmp_addflag= ;;
nvcc*) # Cuda Compiler Driver 2.2
- whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+ whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
compiler_needs_object=yes
;;
esac
case `$CC -V 2>&1 | sed 5q` in
*Sun\ C*) # Sun C 5.9
- whole_archive_flag_spec='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+ whole_archive_flag_spec='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
compiler_needs_object=yes
tmp_sharedflag='-G' ;;
*Sun\ F*) # Sun Fortran 8.3
tmp_sharedflag='-G' ;;
esac
- archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+ archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- if test "x$supports_anon_versioning" = xyes; then
+ if test yes = "$supports_anon_versioning"; then
archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+ cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+ echo "local: *; };" >> $output_objdir/$libname.ver~
+ $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
fi
case $cc_basename in
+ tcc*)
+ export_dynamic_flag_spec='-rdynamic'
+ ;;
xlf* | bgf* | bgxlf* | mpixlf*)
# IBM XL Fortran 10.1 on PPC cannot create shared libs itself
whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive'
- hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+ hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
- if test "x$supports_anon_versioning" = xyes; then
+ if test yes = "$supports_anon_versioning"; then
archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
+ cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+ echo "local: *; };" >> $output_objdir/$libname.ver~
+ $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
fi
;;
esac
archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
wlarc=
else
- archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+ archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
fi
;;
_LT_EOF
elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+ archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
else
ld_shlibs=no
fi
ld_shlibs=no
cat <<_LT_EOF 1>&2
-*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not
+*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot
*** reliably create shared libraries on SCO systems. Therefore, libtool
*** is disabling shared libraries support. We urge you to upgrade GNU
*** binutils to release 2.16.91.0.3 or newer. Another option is to modify
# DT_RUNPATH tag from executables and libraries. But doing so
# requires that you compile everything twice, which is a pain.
if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+ hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+ archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
else
ld_shlibs=no
fi
*)
if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+ archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
else
ld_shlibs=no
fi
;;
esac
- if test "$ld_shlibs" = no; then
+ if test no = "$ld_shlibs"; then
runpath_var=
hardcode_libdir_flag_spec=
export_dynamic_flag_spec=
# Note: this linker hardcodes the directories in LIBPATH if there
# are no directories specified by -L.
hardcode_minus_L=yes
- if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then
+ if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then
# Neither direct hardcoding nor static linking is supported with a
# broken collect2.
hardcode_direct=unsupported
;;
aix[4-9]*)
- if test "$host_cpu" = ia64; then
+ if test ia64 = "$host_cpu"; then
# On IA64, the linker does run time linking by default, so we don't
# have to do anything special.
aix_use_runtimelinking=no
exp_sym_flag='-Bexport'
- no_entry_flag=""
+ no_entry_flag=
else
# If we're using GNU nm, then we don't want the "-C" option.
- # -C means demangle to AIX nm, but means don't demangle with GNU nm
- # Also, AIX nm treats weak defined symbols like other global
- # defined symbols, whereas GNU nm marks them as "W".
+ # -C means demangle to GNU nm, but means don't demangle to AIX nm.
+ # Without the "-l" option, or with the "-B" option, AIX nm treats
+ # weak defined symbols like other global defined symbols, whereas
+ # GNU nm marks them as "W".
+ # While the 'weak' keyword is ignored in the Export File, we need
+ # it in the Import File for the 'aix-soname' feature, so we have
+ # to replace the "-B" option with "-P" for AIX nm.
if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
- export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+ export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
else
- export_symbols_cmds='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+ export_symbols_cmds='`func_echo_all $NM | $SED -e '\''s/B\([^B]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && (substr(\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
fi
aix_use_runtimelinking=no
# Test if we are trying to use run time linking or normal
# AIX style linking. If -brtl is somewhere in LDFLAGS, we
- # need to do runtime linking.
+ # have runtime linking enabled, and use it for executables.
+ # For shared libraries, we enable/disable runtime linking
+ # depending on the kind of the shared library created -
+ # when "with_aix_soname,aix_use_runtimelinking" is:
+ # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables
+ # "aix,yes" lib.so shared, rtl:yes, for executables
+ # lib.a static archive
+ # "both,no" lib.so.V(shr.o) shared, rtl:yes
+ # lib.a(lib.so.V) shared, rtl:no, for executables
+ # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
+ # lib.a(lib.so.V) shared, rtl:no
+ # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables
+ # lib.a static archive
case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
for ld_flag in $LDFLAGS; do
- if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
+ if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then
aix_use_runtimelinking=yes
break
fi
done
+ if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
+ # With aix-soname=svr4, we create the lib.so.V shared archives only,
+ # so we don't have lib.a shared libs to link our executables.
+ # We have to force runtime linking in this case.
+ aix_use_runtimelinking=yes
+ LDFLAGS="$LDFLAGS -Wl,-brtl"
+ fi
;;
esac
hardcode_direct_absolute=yes
hardcode_libdir_separator=':'
link_all_deplibs=yes
- file_list_spec='${wl}-f,'
+ file_list_spec='$wl-f,'
+ case $with_aix_soname,$aix_use_runtimelinking in
+ aix,*) ;; # traditional, no import file
+ svr4,* | *,yes) # use import file
+ # The Import File defines what to hardcode.
+ hardcode_direct=no
+ hardcode_direct_absolute=no
+ ;;
+ esac
- if test "$GCC" = yes; then
+ if test yes = "$GCC"; then
case $host_os in aix4.[012]|aix4.[012].*)
# We only want to do this on AIX 4.2 and lower, the check
# below for broken collect2 doesn't work under 4.3+
- collect2name=`${CC} -print-prog-name=collect2`
+ collect2name=`$CC -print-prog-name=collect2`
if test -f "$collect2name" &&
strings "$collect2name" | $GREP resolve_lib_name >/dev/null
then
;;
esac
shared_flag='-shared'
- if test "$aix_use_runtimelinking" = yes; then
- shared_flag="$shared_flag "'${wl}-G'
+ if test yes = "$aix_use_runtimelinking"; then
+ shared_flag="$shared_flag "'$wl-G'
fi
+ # Need to ensure runtime linking is disabled for the traditional
+ # shared library, or the linker may eventually find shared libraries
+ # /with/ Import File - we do not want to mix them.
+ shared_flag_aix='-shared'
+ shared_flag_svr4='-shared $wl-G'
else
# not using gcc
- if test "$host_cpu" = ia64; then
+ if test ia64 = "$host_cpu"; then
# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
# chokes on -Wl,-G. The following line is correct:
shared_flag='-G'
else
- if test "$aix_use_runtimelinking" = yes; then
- shared_flag='${wl}-G'
+ if test yes = "$aix_use_runtimelinking"; then
+ shared_flag='$wl-G'
else
- shared_flag='${wl}-bM:SRE'
+ shared_flag='$wl-bM:SRE'
fi
+ shared_flag_aix='$wl-bM:SRE'
+ shared_flag_svr4='$wl-G'
fi
fi
- export_dynamic_flag_spec='${wl}-bexpall'
+ export_dynamic_flag_spec='$wl-bexpall'
# It seems that -bexpall does not export symbols beginning with
# underscore (_), so it is better to generate a list of symbols to export.
always_export_symbols=yes
- if test "$aix_use_runtimelinking" = yes; then
+ if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
# Warning - without using the other runtime loading flags (-brtl),
# -berok will link without error, but may produce a broken library.
allow_undefined_flag='-berok'
# Determine the default libpath from the value encoded in an
# empty executable.
- if test "${lt_cv_aix_libpath+set}" = set; then
+ if test set = "${lt_cv_aix_libpath+set}"; then
aix_libpath=$lt_cv_aix_libpath
else
if ${lt_cv_aix_libpath_+:} false; then :
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
if test -z "$lt_cv_aix_libpath_"; then
- lt_cv_aix_libpath_="/usr/lib:/lib"
+ lt_cv_aix_libpath_=/usr/lib:/lib
fi
fi
aix_libpath=$lt_cv_aix_libpath_
fi
- hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
- archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+ hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath"
+ archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
else
- if test "$host_cpu" = ia64; then
- hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
+ if test ia64 = "$host_cpu"; then
+ hardcode_libdir_flag_spec='$wl-R $libdir:/usr/lib:/lib'
allow_undefined_flag="-z nodefs"
- archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
+ archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
else
# Determine the default libpath from the value encoded in an
# empty executable.
- if test "${lt_cv_aix_libpath+set}" = set; then
+ if test set = "${lt_cv_aix_libpath+set}"; then
aix_libpath=$lt_cv_aix_libpath
else
if ${lt_cv_aix_libpath_+:} false; then :
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
if test -z "$lt_cv_aix_libpath_"; then
- lt_cv_aix_libpath_="/usr/lib:/lib"
+ lt_cv_aix_libpath_=/usr/lib:/lib
fi
fi
aix_libpath=$lt_cv_aix_libpath_
fi
- hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
+ hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath"
# Warning - without using the other run time loading flags,
# -berok will link without error, but may produce a broken library.
- no_undefined_flag=' ${wl}-bernotok'
- allow_undefined_flag=' ${wl}-berok'
- if test "$with_gnu_ld" = yes; then
+ no_undefined_flag=' $wl-bernotok'
+ allow_undefined_flag=' $wl-berok'
+ if test yes = "$with_gnu_ld"; then
# We only use this code for GNU lds that support --whole-archive.
- whole_archive_flag_spec='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+ whole_archive_flag_spec='$wl--whole-archive$convenience $wl--no-whole-archive'
else
# Exported symbols can be pulled into shared objects from archives
whole_archive_flag_spec='$convenience'
fi
archive_cmds_need_lc=yes
- # This is similar to how AIX traditionally builds its shared libraries.
- archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+ archive_expsym_cmds='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
+ # -brtl affects multiple linker settings, -berok does not and is overridden later
+ compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`'
+ if test svr4 != "$with_aix_soname"; then
+ # This is similar to how AIX traditionally builds its shared libraries.
+ archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
+ fi
+ if test aix != "$with_aix_soname"; then
+ archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
+ else
+ # used by -dlpreopen to get the symbols
+ archive_expsym_cmds="$archive_expsym_cmds"'~$MV $output_objdir/$realname.d/$soname $output_objdir'
+ fi
+ archive_expsym_cmds="$archive_expsym_cmds"'~$RM -r $output_objdir/$realname.d'
fi
fi
;;
case $host_cpu in
powerpc)
# see comment about AmigaOS4 .so support
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+ archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
archive_expsym_cmds=''
;;
m68k)
# Tell ltmain to make .lib files, not .a files.
libext=lib
# Tell ltmain to make .dll files, not .so files.
- shrext_cmds=".dll"
+ shrext_cmds=.dll
# FIXME: Setting linknames here is a bad hack.
- archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames='
- archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
- sed -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp;
- else
- sed -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp;
- fi~
- $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
- linknames='
+ archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
+ archive_expsym_cmds='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then
+ cp "$export_symbols" "$output_objdir/$soname.def";
+ echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
+ else
+ $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
+ fi~
+ $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+ linknames='
# The linker will not automatically build a static lib if we build a DLL.
# _LT_TAGVAR(old_archive_from_new_cmds, )='true'
enable_shared_with_static_runtimes=yes
# Don't use ranlib
old_postinstall_cmds='chmod 644 $oldlib'
postlink_cmds='lt_outputfile="@OUTPUT@"~
- lt_tool_outputfile="@TOOL_OUTPUT@"~
- case $lt_outputfile in
- *.exe|*.EXE) ;;
- *)
- lt_outputfile="$lt_outputfile.exe"
- lt_tool_outputfile="$lt_tool_outputfile.exe"
- ;;
- esac~
- if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then
- $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
- $RM "$lt_outputfile.manifest";
- fi'
+ lt_tool_outputfile="@TOOL_OUTPUT@"~
+ case $lt_outputfile in
+ *.exe|*.EXE) ;;
+ *)
+ lt_outputfile=$lt_outputfile.exe
+ lt_tool_outputfile=$lt_tool_outputfile.exe
+ ;;
+ esac~
+ if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
+ $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+ $RM "$lt_outputfile.manifest";
+ fi'
;;
*)
# Assume MSVC wrapper
# Tell ltmain to make .lib files, not .a files.
libext=lib
# Tell ltmain to make .dll files, not .so files.
- shrext_cmds=".dll"
+ shrext_cmds=.dll
# FIXME: Setting linknames here is a bad hack.
archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
# The linker will automatically build a .lib file if we build a DLL.
hardcode_direct=no
hardcode_automatic=yes
hardcode_shlibpath_var=unsupported
- if test "$lt_cv_ld_force_load" = "yes"; then
- whole_archive_flag_spec='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+ if test yes = "$lt_cv_ld_force_load"; then
+ whole_archive_flag_spec='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
else
whole_archive_flag_spec=''
fi
link_all_deplibs=yes
- allow_undefined_flag="$_lt_dar_allow_undefined"
+ allow_undefined_flag=$_lt_dar_allow_undefined
case $cc_basename in
- ifort*) _lt_dar_can_shared=yes ;;
+ ifort*|nagfor*) _lt_dar_can_shared=yes ;;
*) _lt_dar_can_shared=$GCC ;;
esac
- if test "$_lt_dar_can_shared" = "yes"; then
+ if test yes = "$_lt_dar_can_shared"; then
output_verbose_link_cmd=func_echo_all
- archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
- module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
- archive_expsym_cmds="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
- module_expsym_cmds="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"
+ archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil"
+ module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil"
+ archive_expsym_cmds="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil"
+ module_expsym_cmds="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil"
else
ld_shlibs=no
;;
hpux9*)
- if test "$GCC" = yes; then
- archive_cmds='$RM $output_objdir/$soname~$CC -shared $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+ if test yes = "$GCC"; then
+ archive_cmds='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
else
- archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+ archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
fi
- hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+ hardcode_libdir_flag_spec='$wl+b $wl$libdir'
hardcode_libdir_separator=:
hardcode_direct=yes
# hardcode_minus_L: Not really in the search PATH,
# but as the default location of the library.
hardcode_minus_L=yes
- export_dynamic_flag_spec='${wl}-E'
+ export_dynamic_flag_spec='$wl-E'
;;
hpux10*)
- if test "$GCC" = yes && test "$with_gnu_ld" = no; then
- archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+ if test yes,no = "$GCC,$with_gnu_ld"; then
+ archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
else
archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
fi
- if test "$with_gnu_ld" = no; then
- hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+ if test no = "$with_gnu_ld"; then
+ hardcode_libdir_flag_spec='$wl+b $wl$libdir'
hardcode_libdir_separator=:
hardcode_direct=yes
hardcode_direct_absolute=yes
- export_dynamic_flag_spec='${wl}-E'
+ export_dynamic_flag_spec='$wl-E'
# hardcode_minus_L: Not really in the search PATH,
# but as the default location of the library.
hardcode_minus_L=yes
;;
hpux11*)
- if test "$GCC" = yes && test "$with_gnu_ld" = no; then
+ if test yes,no = "$GCC,$with_gnu_ld"; then
case $host_cpu in
hppa*64*)
- archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_cmds='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
;;
ia64*)
- archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+ archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
;;
*)
- archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+ archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
;;
esac
else
case $host_cpu in
hppa*64*)
- archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_cmds='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
;;
ia64*)
- archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+ archive_cmds='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
;;
*)
$as_echo_n "(cached) " >&6
else
lt_cv_prog_compiler__b=no
- save_LDFLAGS="$LDFLAGS"
+ save_LDFLAGS=$LDFLAGS
LDFLAGS="$LDFLAGS -b"
echo "$lt_simple_link_test_code" > conftest.$ac_ext
if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
fi
fi
$RM -r conftest*
- LDFLAGS="$save_LDFLAGS"
+ LDFLAGS=$save_LDFLAGS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5
$as_echo "$lt_cv_prog_compiler__b" >&6; }
-if test x"$lt_cv_prog_compiler__b" = xyes; then
- archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+if test yes = "$lt_cv_prog_compiler__b"; then
+ archive_cmds='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
else
archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
fi
;;
esac
fi
- if test "$with_gnu_ld" = no; then
- hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+ if test no = "$with_gnu_ld"; then
+ hardcode_libdir_flag_spec='$wl+b $wl$libdir'
hardcode_libdir_separator=:
case $host_cpu in
*)
hardcode_direct=yes
hardcode_direct_absolute=yes
- export_dynamic_flag_spec='${wl}-E'
+ export_dynamic_flag_spec='$wl-E'
# hardcode_minus_L: Not really in the search PATH,
# but as the default location of the library.
;;
irix5* | irix6* | nonstopux*)
- if test "$GCC" = yes; then
- archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+ if test yes = "$GCC"; then
+ archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
# Try to use the -exported_symbol ld option, if it does not
# work, assume that -exports_file does not work either and
# implicitly export all symbols.
if ${lt_cv_irix_exported_symbol+:} false; then :
$as_echo_n "(cached) " >&6
else
- save_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null"
+ save_LDFLAGS=$LDFLAGS
+ LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int foo (void) { return 0; }
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
- LDFLAGS="$save_LDFLAGS"
+ LDFLAGS=$save_LDFLAGS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_irix_exported_symbol" >&5
$as_echo "$lt_cv_irix_exported_symbol" >&6; }
- if test "$lt_cv_irix_exported_symbol" = yes; then
- archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib'
+ if test yes = "$lt_cv_irix_exported_symbol"; then
+ archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib'
fi
else
- archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
- archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib'
+ archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+ archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib'
fi
archive_cmds_need_lc='no'
- hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+ hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
hardcode_libdir_separator=:
inherit_rpath=yes
link_all_deplibs=yes
;;
+ linux*)
+ case $cc_basename in
+ tcc*)
+ # Fabrice Bellard et al's Tiny C Compiler
+ ld_shlibs=yes
+ archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ esac
+ ;;
+
netbsd*)
if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out
newsos6)
archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
hardcode_direct=yes
- hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+ hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
hardcode_libdir_separator=:
hardcode_shlibpath_var=no
;;
*nto* | *qnx*)
;;
- openbsd*)
+ openbsd* | bitrig*)
if test -f /usr/libexec/ld.so; then
hardcode_direct=yes
hardcode_shlibpath_var=no
hardcode_direct_absolute=yes
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+ if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols'
- hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
- export_dynamic_flag_spec='${wl}-E'
+ archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols'
+ hardcode_libdir_flag_spec='$wl-rpath,$libdir'
+ export_dynamic_flag_spec='$wl-E'
else
- case $host_os in
- openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
- archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
- hardcode_libdir_flag_spec='-R$libdir'
- ;;
- *)
- archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
- ;;
- esac
+ archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+ hardcode_libdir_flag_spec='$wl-rpath,$libdir'
fi
else
ld_shlibs=no
hardcode_libdir_flag_spec='-L$libdir'
hardcode_minus_L=yes
allow_undefined_flag=unsupported
- archive_cmds='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~echo DATA >> $output_objdir/$libname.def~echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
- old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
+ shrext_cmds=.dll
+ archive_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ archive_expsym_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ prefix_cmds="$SED"~
+ if test EXPORTS = "`$SED 1q $export_symbols`"; then
+ prefix_cmds="$prefix_cmds -e 1d";
+ fi~
+ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+ enable_shared_with_static_runtimes=yes
;;
osf3*)
- if test "$GCC" = yes; then
- allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
- archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+ if test yes = "$GCC"; then
+ allow_undefined_flag=' $wl-expect_unresolved $wl\*'
+ archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
else
allow_undefined_flag=' -expect_unresolved \*'
- archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+ archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
fi
archive_cmds_need_lc='no'
- hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+ hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
hardcode_libdir_separator=:
;;
osf4* | osf5*) # as osf3* with the addition of -msym flag
- if test "$GCC" = yes; then
- allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
- archive_cmds='$CC -shared${allow_undefined_flag} $pic_flag $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+ if test yes = "$GCC"; then
+ allow_undefined_flag=' $wl-expect_unresolved $wl\*'
+ archive_cmds='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+ hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
else
allow_undefined_flag=' -expect_unresolved \*'
- archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+ archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
- $CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp'
+ $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp'
# Both c and cxx compiler support -rpath directly
hardcode_libdir_flag_spec='-rpath $libdir'
solaris*)
no_undefined_flag=' -z defs'
- if test "$GCC" = yes; then
- wlarc='${wl}'
- archive_cmds='$CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+ if test yes = "$GCC"; then
+ wlarc='$wl'
+ archive_cmds='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+ $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
else
case `$CC -V 2>&1` in
*"Compilers 5.0"*)
wlarc=''
- archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ archive_cmds='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags'
archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
+ $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
;;
*)
- wlarc='${wl}'
- archive_cmds='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags'
+ wlarc='$wl'
+ archive_cmds='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags'
archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+ $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
;;
esac
fi
solaris2.[0-5] | solaris2.[0-5].*) ;;
*)
# The compiler driver will combine and reorder linker options,
- # but understands `-z linker_flag'. GCC discards it without `$wl',
+ # but understands '-z linker_flag'. GCC discards it without '$wl',
# but is careful enough not to reorder.
# Supported since Solaris 2.6 (maybe 2.5.1?)
- if test "$GCC" = yes; then
- whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
+ if test yes = "$GCC"; then
+ whole_archive_flag_spec='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
else
whole_archive_flag_spec='-z allextract$convenience -z defaultextract'
fi
;;
sunos4*)
- if test "x$host_vendor" = xsequent; then
+ if test sequent = "$host_vendor"; then
# Use $CC to link under sequent, because it throws in some extra .o
# files that make .init and .fini sections work.
- archive_cmds='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_cmds='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags'
else
archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
fi
;;
sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
- no_undefined_flag='${wl}-z,text'
+ no_undefined_flag='$wl-z,text'
archive_cmds_need_lc=no
hardcode_shlibpath_var=no
runpath_var='LD_RUN_PATH'
- if test "$GCC" = yes; then
- archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ if test yes = "$GCC"; then
+ archive_cmds='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_expsym_cmds='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
else
- archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_cmds='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_expsym_cmds='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
fi
;;
sysv5* | sco3.2v5* | sco5v6*)
- # Note: We can NOT use -z defs as we might desire, because we do not
+ # Note: We CANNOT use -z defs as we might desire, because we do not
# link with -lc, and that would cause any symbols used from libc to
# always be unresolved, which means just about no library would
# ever link correctly. If we're not using GNU ld we use -z text
# though, which does catch some bad symbols but isn't as heavy-handed
# as -z defs.
- no_undefined_flag='${wl}-z,text'
- allow_undefined_flag='${wl}-z,nodefs'
+ no_undefined_flag='$wl-z,text'
+ allow_undefined_flag='$wl-z,nodefs'
archive_cmds_need_lc=no
hardcode_shlibpath_var=no
- hardcode_libdir_flag_spec='${wl}-R,$libdir'
+ hardcode_libdir_flag_spec='$wl-R,$libdir'
hardcode_libdir_separator=':'
link_all_deplibs=yes
- export_dynamic_flag_spec='${wl}-Bexport'
+ export_dynamic_flag_spec='$wl-Bexport'
runpath_var='LD_RUN_PATH'
- if test "$GCC" = yes; then
- archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ if test yes = "$GCC"; then
+ archive_cmds='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_expsym_cmds='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
else
- archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_cmds='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_expsym_cmds='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
fi
;;
;;
esac
- if test x$host_vendor = xsni; then
+ if test sni = "$host_vendor"; then
case $host in
sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
- export_dynamic_flag_spec='${wl}-Blargedynsym'
+ export_dynamic_flag_spec='$wl-Blargedynsym'
;;
esac
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5
$as_echo "$ld_shlibs" >&6; }
-test "$ld_shlibs" = no && can_build_shared=no
+test no = "$ld_shlibs" && can_build_shared=no
with_gnu_ld=$with_gnu_ld
# Assume -lc should be added
archive_cmds_need_lc=yes
- if test "$enable_shared" = yes && test "$GCC" = yes; then
+ if test yes,yes = "$GCC,$enable_shared"; then
case $archive_cmds in
*'~'*)
# FIXME: we may have to deal with multi-command sequences.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
$as_echo_n "checking dynamic linker characteristics... " >&6; }
-if test "$GCC" = yes; then
+if test yes = "$GCC"; then
case $host_os in
- darwin*) lt_awk_arg="/^libraries:/,/LR/" ;;
- *) lt_awk_arg="/^libraries:/" ;;
+ darwin*) lt_awk_arg='/^libraries:/,/LR/' ;;
+ *) lt_awk_arg='/^libraries:/' ;;
esac
case $host_os in
- mingw* | cegcc*) lt_sed_strip_eq="s,=\([A-Za-z]:\),\1,g" ;;
- *) lt_sed_strip_eq="s,=/,/,g" ;;
+ mingw* | cegcc*) lt_sed_strip_eq='s|=\([A-Za-z]:\)|\1|g' ;;
+ *) lt_sed_strip_eq='s|=/|/|g' ;;
esac
lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
case $lt_search_path_spec in
;;
esac
# Ok, now we have the path, separated by spaces, we can step through it
- # and add multilib dir if necessary.
+ # and add multilib dir if necessary...
lt_tmp_lt_search_path_spec=
- lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+ lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+ # ...but if some path component already ends with the multilib dir we assume
+ # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer).
+ case "$lt_multi_os_dir; $lt_search_path_spec " in
+ "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*)
+ lt_multi_os_dir=
+ ;;
+ esac
for lt_sys_path in $lt_search_path_spec; do
- if test -d "$lt_sys_path/$lt_multi_os_dir"; then
- lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
- else
+ if test -d "$lt_sys_path$lt_multi_os_dir"; then
+ lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir"
+ elif test -n "$lt_multi_os_dir"; then
test -d "$lt_sys_path" && \
lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
fi
done
lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
-BEGIN {RS=" "; FS="/|\n";} {
- lt_foo="";
- lt_count=0;
+BEGIN {RS = " "; FS = "/|\n";} {
+ lt_foo = "";
+ lt_count = 0;
for (lt_i = NF; lt_i > 0; lt_i--) {
if ($lt_i != "" && $lt_i != ".") {
if ($lt_i == "..") {
lt_count++;
} else {
if (lt_count == 0) {
- lt_foo="/" $lt_i lt_foo;
+ lt_foo = "/" $lt_i lt_foo;
} else {
lt_count--;
}
# for these hosts.
case $host_os in
mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
- $SED 's,/\([A-Za-z]:\),\1,g'` ;;
+ $SED 's|/\([A-Za-z]:\)|\1|g'` ;;
esac
sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
else
library_names_spec=
libname_spec='lib$name'
soname_spec=
-shrext_cmds=".so"
+shrext_cmds=.so
postinstall_cmds=
postuninstall_cmds=
finish_cmds=
# flags to be left without arguments
need_version=unknown
+
+
case $host_os in
aix3*)
version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname.a'
shlibpath_var=LIBPATH
# AIX 3 has no versioning support, so we append a major version to the name.
- soname_spec='${libname}${release}${shared_ext}$major'
+ soname_spec='$libname$release$shared_ext$major'
;;
aix[4-9]*)
need_lib_prefix=no
need_version=no
hardcode_into_libs=yes
- if test "$host_cpu" = ia64; then
+ if test ia64 = "$host_cpu"; then
# AIX 5 supports IA64
- library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
+ library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext'
shlibpath_var=LD_LIBRARY_PATH
else
# With GCC up to 2.95.x, collect2 would create an import file
# for dependence libraries. The import file would start with
- # the line `#! .'. This would cause the generated library to
- # depend on `.', always an invalid library. This was fixed in
+ # the line '#! .'. This would cause the generated library to
+ # depend on '.', always an invalid library. This was fixed in
# development snapshots of GCC prior to 3.0.
case $host_os in
aix4 | aix4.[01] | aix4.[01].*)
if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
echo ' yes '
- echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
+ echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then
:
else
can_build_shared=no
fi
;;
esac
- # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
+ # Using Import Files as archive members, it is possible to support
+ # filename-based versioning of shared library archives on AIX. While
+ # this would work for both with and without runtime linking, it will
+ # prevent static linking of such archives. So we do filename-based
+ # shared library versioning with .so extension only, which is used
+ # when both runtime linking and shared linking is enabled.
+ # Unfortunately, runtime linking may impact performance, so we do
+ # not want this to be the default eventually. Also, we use the
+ # versioned .so libs for executables only if there is the -brtl
+ # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only.
+ # To allow for filename-based versioning support, we need to create
+ # libNAME.so.V as an archive file, containing:
+ # *) an Import File, referring to the versioned filename of the
+ # archive as well as the shared archive member, telling the
+ # bitwidth (32 or 64) of that shared object, and providing the
+ # list of exported symbols of that shared object, eventually
+ # decorated with the 'weak' keyword
+ # *) the shared object with the F_LOADONLY flag set, to really avoid
+ # it being seen by the linker.
+ # At run time we better use the real file rather than another symlink,
+ # but for link time we create the symlink libNAME.so -> libNAME.so.V
+
+ case $with_aix_soname,$aix_use_runtimelinking in
+ # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct
# soname into executable. Probably we can add versioning support to
# collect2, so additional links can be useful in future.
- if test "$aix_use_runtimelinking" = yes; then
+ aix,yes) # traditional libtool
+ dynamic_linker='AIX unversionable lib.so'
# If using run time linking (on AIX 4.2 or later) use lib<name>.so
# instead of lib<name>.a to let people know that these are not
# typical AIX shared libraries.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- else
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ ;;
+ aix,no) # traditional AIX only
+ dynamic_linker='AIX lib.a(lib.so.V)'
# We preserve .a as extension for shared libraries through AIX4.2
# and later when we are not doing run time linking.
- library_names_spec='${libname}${release}.a $libname.a'
- soname_spec='${libname}${release}${shared_ext}$major'
- fi
+ library_names_spec='$libname$release.a $libname.a'
+ soname_spec='$libname$release$shared_ext$major'
+ ;;
+ svr4,*) # full svr4 only
+ dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)"
+ library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+ # We do not specify a path in Import Files, so LIBPATH fires.
+ shlibpath_overrides_runpath=yes
+ ;;
+ *,yes) # both, prefer svr4
+ dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)"
+ library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+ # unpreferred sharedlib libNAME.a needs extra handling
+ postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"'
+ postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"'
+ # We do not specify a path in Import Files, so LIBPATH fires.
+ shlibpath_overrides_runpath=yes
+ ;;
+ *,no) # both, prefer aix
+ dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)"
+ library_names_spec='$libname$release.a $libname.a'
+ soname_spec='$libname$release$shared_ext$major'
+ # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling
+ postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)'
+ postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"'
+ ;;
+ esac
shlibpath_var=LIBPATH
fi
;;
powerpc)
# Since July 2007 AmigaOS4 officially supports .so libraries.
# When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
;;
m68k)
library_names_spec='$libname.ixlibrary $libname.a'
# Create ${libname}_ixlibrary.a entries in /sys/libs.
- finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+ finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
;;
esac
;;
beos*)
- library_names_spec='${libname}${shared_ext}'
+ library_names_spec='$libname$shared_ext'
dynamic_linker="$host_os ld.so"
shlibpath_var=LIBRARY_PATH
;;
bsdi[45]*)
version_type=linux # correct to gnu/linux during the next big refactor
need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
shlibpath_var=LD_LIBRARY_PATH
sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
cygwin* | mingw* | pw32* | cegcc*)
version_type=windows
- shrext_cmds=".dll"
+ shrext_cmds=.dll
need_version=no
need_lib_prefix=no
# gcc
library_names_spec='$libname.dll.a'
# DLL is installed to $(libdir)/../bin by postinstall_cmds
- postinstall_cmds='base_file=`basename \${file}`~
- dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+ postinstall_cmds='base_file=`basename \$file`~
+ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
dldir=$destdir/`dirname \$dlpath`~
test -d \$dldir || mkdir -p \$dldir~
$install_prog $dir/$dlname \$dldir/$dlname~
case $host_os in
cygwin*)
# Cygwin DLLs use 'cyg' prefix rather than 'lib'
- soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+ soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"
;;
mingw* | cegcc*)
# MinGW DLLs use traditional 'lib' prefix
- soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+ soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
;;
pw32*)
# pw32 DLLs use 'pw' prefix rather than 'lib'
- library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+ library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
;;
esac
dynamic_linker='Win32 ld.exe'
*,cl*)
# Native MSVC
libname_spec='$name'
- soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
- library_names_spec='${libname}.dll.lib'
+ soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+ library_names_spec='$libname.dll.lib'
case $build_os in
mingw*)
sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
;;
*)
- sys_lib_search_path_spec="$LIB"
+ sys_lib_search_path_spec=$LIB
if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
# It is most probably a Windows format PATH.
sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
esac
# DLL is installed to $(libdir)/../bin by postinstall_cmds
- postinstall_cmds='base_file=`basename \${file}`~
- dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+ postinstall_cmds='base_file=`basename \$file`~
+ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
dldir=$destdir/`dirname \$dlpath`~
test -d \$dldir || mkdir -p \$dldir~
$install_prog $dir/$dlname \$dldir/$dlname'
*)
# Assume MSVC wrapper
- library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib'
+ library_names_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext $libname.lib'
dynamic_linker='Win32 ld.exe'
;;
esac
version_type=darwin
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
- soname_spec='${libname}${release}${major}$shared_ext'
+ library_names_spec='$libname$release$major$shared_ext $libname$shared_ext'
+ soname_spec='$libname$release$major$shared_ext'
shlibpath_overrides_runpath=yes
shlibpath_var=DYLD_LIBRARY_PATH
shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
;;
version_type=freebsd-$objformat
case $version_type in
freebsd-elf*)
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
need_version=no
need_lib_prefix=no
;;
freebsd-*)
- library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
need_version=yes
;;
esac
esac
;;
-gnu*)
- version_type=linux # correct to gnu/linux during the next big refactor
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
-
haiku*)
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
dynamic_linker="$host_os runtime_loader"
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LIBRARY_PATH
- shlibpath_overrides_runpath=yes
+ shlibpath_overrides_runpath=no
sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
hardcode_into_libs=yes
;;
dynamic_linker="$host_os dld.so"
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- if test "X$HPUX_IA64_MODE" = X32; then
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ if test 32 = "$HPUX_IA64_MODE"; then
sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+ sys_lib_dlsearch_path_spec=/usr/lib/hpux32
else
sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+ sys_lib_dlsearch_path_spec=/usr/lib/hpux64
fi
- sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
;;
hppa*64*)
shrext_cmds='.sl'
dynamic_linker="$host_os dld.sl"
shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
;;
dynamic_linker="$host_os dld.sl"
shlibpath_var=SHLIB_PATH
shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
;;
esac
# HP-UX runs *really* slowly unless shared libraries are mode 555, ...
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=no
case $host_os in
nonstopux*) version_type=nonstopux ;;
*)
- if test "$lt_cv_prog_gnu_ld" = yes; then
+ if test yes = "$lt_cv_prog_gnu_ld"; then
version_type=linux # correct to gnu/linux during the next big refactor
else
version_type=irix
esac
need_lib_prefix=no
need_version=no
- soname_spec='${libname}${release}${shared_ext}$major'
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
+ soname_spec='$libname$release$shared_ext$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext'
case $host_os in
irix5* | nonstopux*)
libsuff= shlibsuff=
esac
shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
shlibpath_overrides_runpath=no
- sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
- sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
+ sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff"
+ sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff"
hardcode_into_libs=yes
;;
dynamic_linker=no
;;
+linux*android*)
+ version_type=none # Android doesn't support versioned libraries.
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext'
+ soname_spec='$libname$release$shared_ext'
+ finish_cmds=
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+
+ # This implies no fast_install, which is unacceptable.
+ # Some rework will be needed to allow for fast_install
+ # before this can be enabled.
+ hardcode_into_libs=yes
+
+ dynamic_linker='Android linker'
+ # Don't embed -rpath directories since the linker doesn't support them.
+ hardcode_libdir_flag_spec='-L$libdir'
+ ;;
+
# This must be glibc/ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=no
# before this can be enabled.
hardcode_into_libs=yes
- # Append ld.so.conf contents to the search path
+ # Ideally, we could use ldconfig to report *all* directores which are
+ # searched for libraries, however this is still not possible. Aside from not
+ # being certain /sbin/ldconfig is available, command
+ # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64,
+ # even though it is searched at run-time. Try to do the best guess by
+ # appending ld.so.conf contents (and includes) to the search path.
if test -f /etc/ld.so.conf; then
lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
need_lib_prefix=no
need_version=no
if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
dynamic_linker='NetBSD (a.out) ld.so'
else
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
dynamic_linker='NetBSD ld.elf_so'
fi
shlibpath_var=LD_LIBRARY_PATH
newsos6)
version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes
;;
version_type=qnx
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=no
hardcode_into_libs=yes
dynamic_linker='ldqnx.so'
;;
-openbsd*)
+openbsd* | bitrig*)
version_type=sunos
- sys_lib_dlsearch_path_spec="/usr/lib"
+ sys_lib_dlsearch_path_spec=/usr/lib
need_lib_prefix=no
- # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
- case $host_os in
- openbsd3.3 | openbsd3.3.*) need_version=yes ;;
- *) need_version=no ;;
- esac
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
- case $host_os in
- openbsd2.[89] | openbsd2.[89].*)
- shlibpath_overrides_runpath=no
- ;;
- *)
- shlibpath_overrides_runpath=yes
- ;;
- esac
+ if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+ need_version=no
else
- shlibpath_overrides_runpath=yes
+ need_version=yes
fi
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+ finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
;;
os2*)
libname_spec='$name'
- shrext_cmds=".dll"
+ version_type=windows
+ shrext_cmds=.dll
+ need_version=no
need_lib_prefix=no
- library_names_spec='$libname${shared_ext} $libname.a'
+ # OS/2 can only load a DLL with a base name of 8 characters or less.
+ soname_spec='`test -n "$os2dllname" && libname="$os2dllname";
+ v=$($ECHO $release$versuffix | tr -d .-);
+ n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _);
+ $ECHO $n$v`$shared_ext'
+ library_names_spec='${libname}_dll.$libext'
dynamic_linker='OS/2 ld.exe'
- shlibpath_var=LIBPATH
+ shlibpath_var=BEGINLIBPATH
+ sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+ sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+ postinstall_cmds='base_file=`basename \$file`~
+ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~
+ dldir=$destdir/`dirname \$dlpath`~
+ test -d \$dldir || mkdir -p \$dldir~
+ $install_prog $dir/$dlname \$dldir/$dlname~
+ chmod a+x \$dldir/$dlname~
+ if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+ eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+ fi'
+ postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~
+ dlpath=$dir/\$dldll~
+ $RM \$dlpath'
;;
osf3* | osf4* | osf5*)
version_type=osf
need_lib_prefix=no
need_version=no
- soname_spec='${libname}${release}${shared_ext}$major'
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+ soname_spec='$libname$release$shared_ext$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
shlibpath_var=LD_LIBRARY_PATH
sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
- sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+ sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
;;
rdos*)
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes
hardcode_into_libs=yes
sunos4*)
version_type=sunos
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes
- if test "$with_gnu_ld" = yes; then
+ if test yes = "$with_gnu_ld"; then
need_lib_prefix=no
fi
need_version=yes
sysv4 | sysv4.3*)
version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
case $host_vendor in
sni)
;;
sysv4*MP*)
- if test -d /usr/nec ;then
+ if test -d /usr/nec; then
version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
- soname_spec='$libname${shared_ext}.$major'
+ library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext'
+ soname_spec='$libname$shared_ext.$major'
shlibpath_var=LD_LIBRARY_PATH
fi
;;
sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
- version_type=freebsd-elf
+ version_type=sco
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes
hardcode_into_libs=yes
- if test "$with_gnu_ld" = yes; then
+ if test yes = "$with_gnu_ld"; then
sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
else
sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=no
hardcode_into_libs=yes
uts4*)
version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
;;
esac
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
$as_echo "$dynamic_linker" >&6; }
-test "$dynamic_linker" = no && can_build_shared=no
+test no = "$dynamic_linker" && can_build_shared=no
variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
-if test "$GCC" = yes; then
+if test yes = "$GCC"; then
variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
fi
-if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
- sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
+if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then
+ sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec
fi
-if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
- sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
+
+if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then
+ sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec
fi
+# remember unaugmented sys_lib_dlsearch_path content for libtool script decls...
+configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec
+
+# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code
+func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH"
+
+# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool
+configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
+
+
+
+
+
+
hardcode_action=
if test -n "$hardcode_libdir_flag_spec" ||
test -n "$runpath_var" ||
- test "X$hardcode_automatic" = "Xyes" ; then
+ test yes = "$hardcode_automatic"; then
# We can hardcode non-existent directories.
- if test "$hardcode_direct" != no &&
+ if test no != "$hardcode_direct" &&
# If the only mechanism to avoid hardcoding is shlibpath_var, we
# have to relink, otherwise we might link with an installed library
# when we should be linking with a yet-to-be-installed one
- ## test "$_LT_TAGVAR(hardcode_shlibpath_var, )" != no &&
- test "$hardcode_minus_L" != no; then
+ ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, )" &&
+ test no != "$hardcode_minus_L"; then
# Linking always hardcodes the temporary library directory.
hardcode_action=relink
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5
$as_echo "$hardcode_action" >&6; }
-if test "$hardcode_action" = relink ||
- test "$inherit_rpath" = yes; then
+if test relink = "$hardcode_action" ||
+ test yes = "$inherit_rpath"; then
# Fast installation is not supported
enable_fast_install=no
-elif test "$shlibpath_overrides_runpath" = yes ||
- test "$enable_shared" = no; then
+elif test yes = "$shlibpath_overrides_runpath" ||
+ test no = "$enable_shared"; then
# Fast installation is not necessary
enable_fast_install=needless
fi
- if test "x$enable_dlopen" != xyes; then
+ if test yes != "$enable_dlopen"; then
enable_dlopen=unknown
enable_dlopen_self=unknown
enable_dlopen_self_static=unknown
case $host_os in
beos*)
- lt_cv_dlopen="load_add_on"
+ lt_cv_dlopen=load_add_on
lt_cv_dlopen_libs=
lt_cv_dlopen_self=yes
;;
mingw* | pw32* | cegcc*)
- lt_cv_dlopen="LoadLibrary"
+ lt_cv_dlopen=LoadLibrary
lt_cv_dlopen_libs=
;;
cygwin*)
- lt_cv_dlopen="dlopen"
+ lt_cv_dlopen=dlopen
lt_cv_dlopen_libs=
;;
darwin*)
- # if libdl is installed we need to link against it
+ # if libdl is installed we need to link against it
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
$as_echo_n "checking for dlopen in -ldl... " >&6; }
if ${ac_cv_lib_dl_dlopen+:} false; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
- lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
+ lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl
else
- lt_cv_dlopen="dyld"
+ lt_cv_dlopen=dyld
lt_cv_dlopen_libs=
lt_cv_dlopen_self=yes
;;
+ tpf*)
+ # Don't try to run any link tests for TPF. We know it's impossible
+ # because TPF is a cross-compiler, and we know how we open DSOs.
+ lt_cv_dlopen=dlopen
+ lt_cv_dlopen_libs=
+ lt_cv_dlopen_self=no
+ ;;
+
*)
ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load"
if test "x$ac_cv_func_shl_load" = xyes; then :
- lt_cv_dlopen="shl_load"
+ lt_cv_dlopen=shl_load
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5
$as_echo_n "checking for shl_load in -ldld... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5
$as_echo "$ac_cv_lib_dld_shl_load" >&6; }
if test "x$ac_cv_lib_dld_shl_load" = xyes; then :
- lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"
+ lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld
else
ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
if test "x$ac_cv_func_dlopen" = xyes; then :
- lt_cv_dlopen="dlopen"
+ lt_cv_dlopen=dlopen
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
$as_echo_n "checking for dlopen in -ldl... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
- lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
+ lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5
$as_echo_n "checking for dlopen in -lsvld... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5
$as_echo "$ac_cv_lib_svld_dlopen" >&6; }
if test "x$ac_cv_lib_svld_dlopen" = xyes; then :
- lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"
+ lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5
$as_echo_n "checking for dld_link in -ldld... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5
$as_echo "$ac_cv_lib_dld_dld_link" >&6; }
if test "x$ac_cv_lib_dld_dld_link" = xyes; then :
- lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"
+ lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld
fi
;;
esac
- if test "x$lt_cv_dlopen" != xno; then
- enable_dlopen=yes
- else
+ if test no = "$lt_cv_dlopen"; then
enable_dlopen=no
+ else
+ enable_dlopen=yes
fi
case $lt_cv_dlopen in
dlopen)
- save_CPPFLAGS="$CPPFLAGS"
- test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+ save_CPPFLAGS=$CPPFLAGS
+ test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
- save_LDFLAGS="$LDFLAGS"
+ save_LDFLAGS=$LDFLAGS
wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
- save_LIBS="$LIBS"
+ save_LIBS=$LIBS
LIBS="$lt_cv_dlopen_libs $LIBS"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5
if ${lt_cv_dlopen_self+:} false; then :
$as_echo_n "(cached) " >&6
else
- if test "$cross_compiling" = yes; then :
+ if test yes = "$cross_compiling"; then :
lt_cv_dlopen_self=cross
else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
# endif
#endif
-/* When -fvisbility=hidden is used, assume the code has been annotated
+/* When -fvisibility=hidden is used, assume the code has been annotated
correspondingly for the symbols needed. */
-#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
int fnord () __attribute__((visibility("default")));
#endif
(eval $ac_link) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then
+ test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then
(./conftest; exit; ) >&5 2>/dev/null
lt_status=$?
case x$lt_status in
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5
$as_echo "$lt_cv_dlopen_self" >&6; }
- if test "x$lt_cv_dlopen_self" = xyes; then
+ if test yes = "$lt_cv_dlopen_self"; then
wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5
$as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; }
if ${lt_cv_dlopen_self_static+:} false; then :
$as_echo_n "(cached) " >&6
else
- if test "$cross_compiling" = yes; then :
+ if test yes = "$cross_compiling"; then :
lt_cv_dlopen_self_static=cross
else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
# endif
#endif
-/* When -fvisbility=hidden is used, assume the code has been annotated
+/* When -fvisibility=hidden is used, assume the code has been annotated
correspondingly for the symbols needed. */
-#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
int fnord () __attribute__((visibility("default")));
#endif
(eval $ac_link) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then
+ test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then
(./conftest; exit; ) >&5 2>/dev/null
lt_status=$?
case x$lt_status in
$as_echo "$lt_cv_dlopen_self_static" >&6; }
fi
- CPPFLAGS="$save_CPPFLAGS"
- LDFLAGS="$save_LDFLAGS"
- LIBS="$save_LIBS"
+ CPPFLAGS=$save_CPPFLAGS
+ LDFLAGS=$save_LDFLAGS
+ LIBS=$save_LIBS
;;
esac
# FIXME - insert some real tests, host_os isn't really good enough
case $host_os in
darwin*)
- if test -n "$STRIP" ; then
+ if test -n "$STRIP"; then
striplib="$STRIP -x"
old_striplib="$STRIP -S"
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
- # Report which library types will actually be built
+ # Report what library types will actually be built
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5
$as_echo_n "checking if libtool supports shared libraries... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5
$as_echo_n "checking whether to build shared libraries... " >&6; }
- test "$can_build_shared" = "no" && enable_shared=no
+ test no = "$can_build_shared" && enable_shared=no
# On AIX, shared libraries and static libraries use the same namespace, and
# are all built from PIC.
case $host_os in
aix3*)
- test "$enable_shared" = yes && enable_static=no
+ test yes = "$enable_shared" && enable_static=no
if test -n "$RANLIB"; then
archive_cmds="$archive_cmds~\$RANLIB \$lib"
postinstall_cmds='$RANLIB $lib'
;;
aix[4-9]*)
- if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
- test "$enable_shared" = yes && enable_static=no
+ if test ia64 != "$host_cpu"; then
+ case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+ yes,aix,yes) ;; # shared object as lib.so file only
+ yes,svr4,*) ;; # shared object as lib.so archive member only
+ yes,*) enable_static=no ;; # shared object in lib.a archive as well
+ esac
fi
;;
esac
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5
$as_echo_n "checking whether to build static libraries... " >&6; }
# Make sure either enable_shared or enable_static is yes.
- test "$enable_shared" = yes || enable_static=yes
+ test yes = "$enable_shared" || enable_static=yes
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5
$as_echo "$enable_static" >&6; }
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
-CC="$lt_save_CC"
+CC=$lt_save_CC
if test "$enable_arm_neon" != 'no' &&
case "$host_cpu" in
- arm*) :;;
+ arm*|aarch64*) :;;
*) test "$enable_arm_neon" != '';;
esac; then
PNG_ARM_NEON_TRUE=
# report actual input values of CONFIG_FILES etc. instead of their
# values after options handling.
ac_log="
-This file was extended by libpng $as_me 1.6.13, which was
+This file was extended by libpng $as_me 1.6.21, which was
generated by GNU Autoconf 2.69. Invocation command line was
CONFIG_FILES = $CONFIG_FILES
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
ac_cs_version="\\
-libpng config.status 1.6.13
+libpng config.status 1.6.21
configured by $0, generated by GNU Autoconf 2.69,
with options \\"\$ac_cs_config\\"
enable_static='`$ECHO "$enable_static" | $SED "$delay_single_quote_subst"`'
pic_mode='`$ECHO "$pic_mode" | $SED "$delay_single_quote_subst"`'
enable_fast_install='`$ECHO "$enable_fast_install" | $SED "$delay_single_quote_subst"`'
+shared_archive_member_spec='`$ECHO "$shared_archive_member_spec" | $SED "$delay_single_quote_subst"`'
PATH_SEPARATOR='`$ECHO "$PATH_SEPARATOR" | $SED "$delay_single_quote_subst"`'
host_alias='`$ECHO "$host_alias" | $SED "$delay_single_quote_subst"`'
host='`$ECHO "$host" | $SED "$delay_single_quote_subst"`'
GCC='`$ECHO "$GCC" | $SED "$delay_single_quote_subst"`'
lt_cv_sys_global_symbol_pipe='`$ECHO "$lt_cv_sys_global_symbol_pipe" | $SED "$delay_single_quote_subst"`'
lt_cv_sys_global_symbol_to_cdecl='`$ECHO "$lt_cv_sys_global_symbol_to_cdecl" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_import='`$ECHO "$lt_cv_sys_global_symbol_to_import" | $SED "$delay_single_quote_subst"`'
lt_cv_sys_global_symbol_to_c_name_address='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address" | $SED "$delay_single_quote_subst"`'
lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address_lib_prefix" | $SED "$delay_single_quote_subst"`'
+lt_cv_nm_interface='`$ECHO "$lt_cv_nm_interface" | $SED "$delay_single_quote_subst"`'
nm_file_list_spec='`$ECHO "$nm_file_list_spec" | $SED "$delay_single_quote_subst"`'
lt_sysroot='`$ECHO "$lt_sysroot" | $SED "$delay_single_quote_subst"`'
+lt_cv_truncate_bin='`$ECHO "$lt_cv_truncate_bin" | $SED "$delay_single_quote_subst"`'
objdir='`$ECHO "$objdir" | $SED "$delay_single_quote_subst"`'
MAGIC_CMD='`$ECHO "$MAGIC_CMD" | $SED "$delay_single_quote_subst"`'
lt_prog_compiler_no_builtin_flag='`$ECHO "$lt_prog_compiler_no_builtin_flag" | $SED "$delay_single_quote_subst"`'
finish_eval='`$ECHO "$finish_eval" | $SED "$delay_single_quote_subst"`'
hardcode_into_libs='`$ECHO "$hardcode_into_libs" | $SED "$delay_single_quote_subst"`'
sys_lib_search_path_spec='`$ECHO "$sys_lib_search_path_spec" | $SED "$delay_single_quote_subst"`'
-sys_lib_dlsearch_path_spec='`$ECHO "$sys_lib_dlsearch_path_spec" | $SED "$delay_single_quote_subst"`'
+configure_time_dlsearch_path='`$ECHO "$configure_time_dlsearch_path" | $SED "$delay_single_quote_subst"`'
+configure_time_lt_sys_library_path='`$ECHO "$configure_time_lt_sys_library_path" | $SED "$delay_single_quote_subst"`'
hardcode_action='`$ECHO "$hardcode_action" | $SED "$delay_single_quote_subst"`'
enable_dlopen='`$ECHO "$enable_dlopen" | $SED "$delay_single_quote_subst"`'
enable_dlopen_self='`$ECHO "$enable_dlopen_self" | $SED "$delay_single_quote_subst"`'
compiler \
lt_cv_sys_global_symbol_pipe \
lt_cv_sys_global_symbol_to_cdecl \
+lt_cv_sys_global_symbol_to_import \
lt_cv_sys_global_symbol_to_c_name_address \
lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \
+lt_cv_nm_interface \
nm_file_list_spec \
+lt_cv_truncate_bin \
lt_prog_compiler_no_builtin_flag \
lt_prog_compiler_pic \
lt_prog_compiler_wl \
striplib; do
case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
*[\\\\\\\`\\"\\\$]*)
- eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\""
+ eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
;;
*)
eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
postuninstall_cmds \
finish_cmds \
sys_lib_search_path_spec \
-sys_lib_dlsearch_path_spec; do
+configure_time_dlsearch_path \
+configure_time_lt_sys_library_path; do
case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
*[\\\\\\\`\\"\\\$]*)
- eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\""
+ eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
;;
*)
eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
done
ac_aux_dir='$ac_aux_dir'
-xsi_shell='$xsi_shell'
-lt_shell_append='$lt_shell_append'
-# See if we are running on zsh, and set the options which allow our
+# See if we are running on zsh, and set the options that allow our
# commands through without removal of \ escapes INIT.
-if test -n "\${ZSH_VERSION+set}" ; then
+if test -n "\${ZSH_VERSION+set}"; then
setopt NO_GLOB_SUBST
fi
PACKAGE='$PACKAGE'
VERSION='$VERSION'
- TIMESTAMP='$TIMESTAMP'
RM='$RM'
ofile='$ofile'
;;
"libtool":C)
- # See if we are running on zsh, and set the options which allow our
+ # See if we are running on zsh, and set the options that allow our
# commands through without removal of \ escapes.
- if test -n "${ZSH_VERSION+set}" ; then
+ if test -n "${ZSH_VERSION+set}"; then
setopt NO_GLOB_SUBST
fi
- cfgfile="${ofile}T"
+ cfgfile=${ofile}T
trap "$RM \"$cfgfile\"; exit 1" 1 2 15
$RM "$cfgfile"
cat <<_LT_EOF >> "$cfgfile"
#! $SHELL
-
-# `$ECHO "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
-# Generated automatically by $as_me ($PACKAGE$TIMESTAMP) $VERSION
+# Generated automatically by $as_me ($PACKAGE) $VERSION
# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
# NOTE: Changes made to this file will be lost: look at ltmain.sh.
+
+# Provide generalized library-building support services.
+# Written by Gordon Matzigkeit, 1996
+
+# Copyright (C) 2014 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions. There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# GNU Libtool is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of of the License, or
+# (at your option) any later version.
#
-# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
-# 2006, 2007, 2008, 2009, 2010, 2011 Free Software
-# Foundation, Inc.
-# Written by Gordon Matzigkeit, 1996
-#
-# This file is part of GNU Libtool.
-#
-# GNU Libtool is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# As a special exception to the GNU General Public License,
-# if you distribute this file as part of a program or library that
-# is built using GNU Libtool, you may include this file under the
-# same distribution terms that you use for the rest of that program.
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program or library that is built
+# using GNU Libtool, you may include this file under the same
+# distribution terms that you use for the rest of that program.
#
-# GNU Libtool is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# GNU Libtool is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
-# along with GNU Libtool; see the file COPYING. If not, a copy
-# can be downloaded from http://www.gnu.org/licenses/gpl.html, or
-# obtained by writing to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
# The names of the tagged configurations supported by this script.
-available_tags=""
+available_tags=''
+
+# Configured defaults for sys_lib_dlsearch_path munging.
+: \${LT_SYS_LIBRARY_PATH="$configure_time_lt_sys_library_path"}
# ### BEGIN LIBTOOL CONFIG
# Whether or not to optimize for fast installation.
fast_install=$enable_fast_install
+# Shared archive member basename,for filename based shared library versioning on AIX.
+shared_archive_member_spec=$shared_archive_member_spec
+
# The PATH separator for the build system.
PATH_SEPARATOR=$lt_PATH_SEPARATOR
# Transform the output of nm in a proper C declaration.
global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl
+# Transform the output of nm into a list of symbols to manually relocate.
+global_symbol_to_import=$lt_lt_cv_sys_global_symbol_to_import
+
# Transform the output of nm in a C name address pair.
global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address
# Transform the output of nm in a C name address pair when lib prefix is needed.
global_symbol_to_c_name_address_lib_prefix=$lt_lt_cv_sys_global_symbol_to_c_name_address_lib_prefix
+# The name lister interface.
+nm_interface=$lt_lt_cv_nm_interface
+
# Specify filename containing input files for \$NM.
nm_file_list_spec=$lt_nm_file_list_spec
-# The root where to search for dependent libraries,and in which our libraries should be installed.
+# The root where to search for dependent libraries,and where our libraries should be installed.
lt_sysroot=$lt_sysroot
+# Command to truncate a binary pipe.
+lt_truncate_bin=$lt_lt_cv_truncate_bin
+
# The name of the directory that contains temporary libtool files.
objdir=$objdir
# Compile-time system search path for libraries.
sys_lib_search_path_spec=$lt_sys_lib_search_path_spec
-# Run-time system search path for libraries.
-sys_lib_dlsearch_path_spec=$lt_sys_lib_dlsearch_path_spec
+# Detected run-time system search path for libraries.
+sys_lib_dlsearch_path_spec=$lt_configure_time_dlsearch_path
+
+# Explicit LT_SYS_LIBRARY_PATH set during ./configure time.
+configure_time_lt_sys_library_path=$lt_configure_time_lt_sys_library_path
# Whether dlopen is supported.
dlopen_support=$enable_dlopen
# Whether we need a single "-rpath" flag with a separated argument.
hardcode_libdir_separator=$lt_hardcode_libdir_separator
-# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
# DIR into the resulting binary.
hardcode_direct=$hardcode_direct
-# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
# DIR into the resulting binary and the resulting library dependency is
-# "absolute",i.e impossible to change by setting \${shlibpath_var} if the
+# "absolute",i.e impossible to change by setting \$shlibpath_var if the
# library is relocated.
hardcode_direct_absolute=$hardcode_direct_absolute
_LT_EOF
+ cat <<'_LT_EOF' >> "$cfgfile"
+
+# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE
+
+# func_munge_path_list VARIABLE PATH
+# -----------------------------------
+# VARIABLE is name of variable containing _space_ separated list of
+# directories to be munged by the contents of PATH, which is string
+# having a format:
+# "DIR[:DIR]:"
+# string "DIR[ DIR]" will be prepended to VARIABLE
+# ":DIR[:DIR]"
+# string "DIR[ DIR]" will be appended to VARIABLE
+# "DIRP[:DIRP]::[DIRA:]DIRA"
+# string "DIRP[ DIRP]" will be prepended to VARIABLE and string
+# "DIRA[ DIRA]" will be appended to VARIABLE
+# "DIR[:DIR]"
+# VARIABLE will be replaced by "DIR[ DIR]"
+func_munge_path_list ()
+{
+ case x$2 in
+ x)
+ ;;
+ *:)
+ eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\"
+ ;;
+ x:*)
+ eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\"
+ ;;
+ *::*)
+ eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
+ eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\"
+ ;;
+ *)
+ eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\"
+ ;;
+ esac
+}
+
+
+# Calculate cc_basename. Skip known compiler wrappers and cross-prefix.
+func_cc_basename ()
+{
+ for cc_temp in $*""; do
+ case $cc_temp in
+ compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+ distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+ \-*) ;;
+ *) break;;
+ esac
+ done
+ func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+}
+
+
+# ### END FUNCTIONS SHARED WITH CONFIGURE
+
+_LT_EOF
+
case $host_os in
aix3*)
cat <<\_LT_EOF >> "$cfgfile"
# AIX sometimes has problems with the GCC collect2 program. For some
# reason, if we set the COLLECT_NAMES environment variable, the problems
# vanish in a puff of smoke.
-if test "X${COLLECT_NAMES+set}" != Xset; then
+if test set != "${COLLECT_NAMES+set}"; then
COLLECT_NAMES=
export COLLECT_NAMES
fi
esac
-ltmain="$ac_aux_dir/ltmain.sh"
+ltmain=$ac_aux_dir/ltmain.sh
# We use sed instead of cat because bash on DJGPP gets confused if
sed '$q' "$ltmain" >> "$cfgfile" \
|| (rm -f "$cfgfile"; exit 1)
- if test x"$xsi_shell" = xyes; then
- sed -e '/^func_dirname ()$/,/^} # func_dirname /c\
-func_dirname ()\
-{\
-\ case ${1} in\
-\ */*) func_dirname_result="${1%/*}${2}" ;;\
-\ * ) func_dirname_result="${3}" ;;\
-\ esac\
-} # Extended-shell func_dirname implementation' "$cfgfile" > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
-test 0 -eq $? || _lt_function_replace_fail=:
-
-
- sed -e '/^func_basename ()$/,/^} # func_basename /c\
-func_basename ()\
-{\
-\ func_basename_result="${1##*/}"\
-} # Extended-shell func_basename implementation' "$cfgfile" > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
-test 0 -eq $? || _lt_function_replace_fail=:
-
-
- sed -e '/^func_dirname_and_basename ()$/,/^} # func_dirname_and_basename /c\
-func_dirname_and_basename ()\
-{\
-\ case ${1} in\
-\ */*) func_dirname_result="${1%/*}${2}" ;;\
-\ * ) func_dirname_result="${3}" ;;\
-\ esac\
-\ func_basename_result="${1##*/}"\
-} # Extended-shell func_dirname_and_basename implementation' "$cfgfile" > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
-test 0 -eq $? || _lt_function_replace_fail=:
-
-
- sed -e '/^func_stripname ()$/,/^} # func_stripname /c\
-func_stripname ()\
-{\
-\ # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are\
-\ # positional parameters, so assign one to ordinary parameter first.\
-\ func_stripname_result=${3}\
-\ func_stripname_result=${func_stripname_result#"${1}"}\
-\ func_stripname_result=${func_stripname_result%"${2}"}\
-} # Extended-shell func_stripname implementation' "$cfgfile" > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
-test 0 -eq $? || _lt_function_replace_fail=:
-
-
- sed -e '/^func_split_long_opt ()$/,/^} # func_split_long_opt /c\
-func_split_long_opt ()\
-{\
-\ func_split_long_opt_name=${1%%=*}\
-\ func_split_long_opt_arg=${1#*=}\
-} # Extended-shell func_split_long_opt implementation' "$cfgfile" > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
-test 0 -eq $? || _lt_function_replace_fail=:
-
-
- sed -e '/^func_split_short_opt ()$/,/^} # func_split_short_opt /c\
-func_split_short_opt ()\
-{\
-\ func_split_short_opt_arg=${1#??}\
-\ func_split_short_opt_name=${1%"$func_split_short_opt_arg"}\
-} # Extended-shell func_split_short_opt implementation' "$cfgfile" > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
-test 0 -eq $? || _lt_function_replace_fail=:
-
-
- sed -e '/^func_lo2o ()$/,/^} # func_lo2o /c\
-func_lo2o ()\
-{\
-\ case ${1} in\
-\ *.lo) func_lo2o_result=${1%.lo}.${objext} ;;\
-\ *) func_lo2o_result=${1} ;;\
-\ esac\
-} # Extended-shell func_lo2o implementation' "$cfgfile" > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
-test 0 -eq $? || _lt_function_replace_fail=:
-
-
- sed -e '/^func_xform ()$/,/^} # func_xform /c\
-func_xform ()\
-{\
- func_xform_result=${1%.*}.lo\
-} # Extended-shell func_xform implementation' "$cfgfile" > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
-test 0 -eq $? || _lt_function_replace_fail=:
-
-
- sed -e '/^func_arith ()$/,/^} # func_arith /c\
-func_arith ()\
-{\
- func_arith_result=$(( $* ))\
-} # Extended-shell func_arith implementation' "$cfgfile" > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
-test 0 -eq $? || _lt_function_replace_fail=:
-
-
- sed -e '/^func_len ()$/,/^} # func_len /c\
-func_len ()\
-{\
- func_len_result=${#1}\
-} # Extended-shell func_len implementation' "$cfgfile" > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
-test 0 -eq $? || _lt_function_replace_fail=:
-
-fi
-
-if test x"$lt_shell_append" = xyes; then
- sed -e '/^func_append ()$/,/^} # func_append /c\
-func_append ()\
-{\
- eval "${1}+=\\${2}"\
-} # Extended-shell func_append implementation' "$cfgfile" > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
-test 0 -eq $? || _lt_function_replace_fail=:
-
-
- sed -e '/^func_append_quoted ()$/,/^} # func_append_quoted /c\
-func_append_quoted ()\
-{\
-\ func_quote_for_eval "${2}"\
-\ eval "${1}+=\\\\ \\$func_quote_for_eval_result"\
-} # Extended-shell func_append_quoted implementation' "$cfgfile" > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
-test 0 -eq $? || _lt_function_replace_fail=:
-
-
- # Save a `func_append' function call where possible by direct use of '+='
- sed -e 's%func_append \([a-zA-Z_]\{1,\}\) "%\1+="%g' $cfgfile > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
- test 0 -eq $? || _lt_function_replace_fail=:
-else
- # Save a `func_append' function call even when '+=' is not available
- sed -e 's%func_append \([a-zA-Z_]\{1,\}\) "%\1="$\1%g' $cfgfile > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
- test 0 -eq $? || _lt_function_replace_fail=:
-fi
-
-if test x"$_lt_function_replace_fail" = x":"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Unable to substitute extended shell functions in $ofile" >&5
-$as_echo "$as_me: WARNING: Unable to substitute extended shell functions in $ofile" >&2;}
-fi
-
-
mv -f "$cfgfile" "$ofile" ||
(rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
chmod +x "$ofile"
dnl Version number stuff here:
-AC_INIT([libpng],[1.6.13],[png-mng-implement@lists.sourceforge.net])
+AC_INIT([libpng],[1.6.21],[png-mng-implement@lists.sourceforge.net])
AC_CONFIG_MACRO_DIR([scripts])
# libpng does not follow GNU file name conventions (hence 'foreign')
dnl AM_PREREQ([1.11.2])
dnl stop configure from automagically running automake
-PNGLIB_VERSION=1.6.13
+PNGLIB_VERSION=1.6.21
PNGLIB_MAJOR=1
PNGLIB_MINOR=6
-PNGLIB_RELEASE=13
+PNGLIB_RELEASE=21
dnl End of version number stuff
AM_CONDITIONAL([PNG_ARM_NEON],
[test "$enable_arm_neon" != 'no' &&
case "$host_cpu" in
- arm*) :;;
+ arm*|aarch64*) :;;
*) test "$enable_arm_neon" != '';;
esac])
This "contrib" directory contains contributions which are not necessarily under
the libpng license, although all are open source. They are not part of
-libpng proper and are not used for building the library.
+libpng proper and are not used for building the library, although some are used
+for testing the library via "make check".
OPERATING SYSTEM SPECIFIC ARM NEON DETECTION
--------------------------------------------
-Detection of the ability to exexcute ARM NEON on an ARM processor requires
+Detection of the ability to execute ARM NEON on an ARM processor requires
operating system support. (The information is not available in user mode.)
HOW TO USE THIS
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
- *
+ *
* SEE contrib/arm-neon/README before reporting bugs
*
* STATUS: COMPILED, TESTED
*
* Copyright (c) 2014 Glenn Randers-Pehrson
* Written by John Bowler, 2014.
- * Last changed in libpng 1.6.10 [March 6, 2014]
+ * Last changed in libpng 1.6.16 [December 22, 2014]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* png_have_neon implemented for Linux by reading the widely available
* pseudo-file /proc/cpuinfo.
*
- * This code is strict ANSI-C and is probably moderately portable, it does
- * however use <stdio.h> and assumes that /proc/cpuinfo is never localized.
+ * This code is strict ANSI-C and is probably moderately portable; it does
+ * however use <stdio.h> and it assumes that /proc/cpuinfo is never localized.
*/
#include <stdio.h>
state = Colon;
break;
}
-
+
/* did not match 'feature' */
state = SkipLine;
/* FALL THROUGH */
}
}
+#ifdef PNG_WARNINGS_SUPPORTED
else
png_warning(png_ptr, "/proc/cpuinfo open failed");
+#endif
return 0;
}
#include <png.h>
+#if defined(PNG_READ_SUPPORTED) && defined(PNG_STDIO_SUPPORTED) && \
+ defined (PNG_iCCP_SUPPORTED)
+
+
static int verbose = 1;
static png_byte no_profile[] = "no profile";
/* Exit code is true if any extract succeeds */
return extracted == 0;
}
+#endif /* READ && STDIO && iCCP */
*/
#include "../../png.h"
+#if defined(PNG_READ_SUPPORTED) && defined(PNG_SEQUENTIAL_READ_SUPPORTED)
+
/* Return component 'c' of pixel 'x' from the given row. */
static unsigned int
component(png_const_bytep row, png_uint_32 x, unsigned int c,
*/
case PNG_COLOR_TYPE_PALETTE:
{
- PNG_CONST unsigned int index = component(row, x, 0, bit_depth, 1);
+ PNG_CONST int index = component(row, x, 0, bit_depth, 1);
png_colorp palette = NULL;
int num_palette = 0;
return result;
}
+#endif /* READ && SEQUENTIAL_READ */
* ensure the code picks up the local libpng implementation:
*/
#include "../../png.h"
+#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) && \
+ defined(PNG_SIMPLIFIED_WRITE_SUPPORTED)
int main(int argc, const char **argv)
{
return result;
}
+#endif /* READ && WRITE */
--- /dev/null
+/*- simpleover
+ *
+ * COPYRIGHT: Written by John Cunningham Bowler, 2015.
+ * To the extent possible under law, the author has waived all copyright and
+ * related or neighboring rights to this work. This work is published from:
+ * United States.
+ *
+ * Read several PNG files, which should have an alpha channel or transparency
+ * information, and composite them together to produce one or more 16-bit linear
+ * RGBA intermediates. This involves doing the correct 'over' composition to
+ * combine the alpha channels and corresponding data.
+ *
+ * Finally read an output (background) PNG using the 24-bit RGB format (the
+ * PNG will be composited on green (#00ff00) by default if it has an alpha
+ * channel), and apply the intermediate image generated above to specified
+ * locations in the image.
+ *
+ * The command line has the general format:
+ *
+ * simpleover <background.png> [output.png]
+ * {--sprite=width,height,name {[--at=x,y] {sprite.png}}}
+ * {--add=name {x,y}}
+ *
+ * The --sprite and --add options may occur multiple times. They are executed
+ * in order. --add may refer to any sprite already read.
+ *
+ * This code is intended to show how to composite multiple images together
+ * correctly. Apart from the libpng Simplified API the only work done in here
+ * is to combine multiple input PNG images into a single sprite; this involves
+ * a Porter-Duff 'over' operation and the input PNG images may, as a result,
+ * be regarded as being layered one on top of the other with the first (leftmost
+ * on the command line) being at the bottom and the last on the top.
+ */
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+
+/* Normally use <png.h> here to get the installed libpng, but this is done to
+ * ensure the code picks up the local libpng implementation, so long as this
+ * file is linked against a sufficiently recent libpng (1.6+) it is ok to
+ * change this to <png.h>:
+ */
+#include "../../png.h"
+
+#ifdef PNG_SIMPLIFIED_READ_SUPPORTED
+
+#define sprite_name_chars 15
+struct sprite {
+ FILE *file;
+ png_uint_16p buffer;
+ unsigned int width;
+ unsigned int height;
+ char name[sprite_name_chars+1];
+};
+
+#if 0 /* div by 65535 test program */
+#include <math.h>
+#include <stdio.h>
+
+int main(void) {
+ double err = 0;
+ unsigned int xerr = 0;
+ unsigned int r = 32769;
+ {
+ unsigned int x = 0;
+
+ do {
+ unsigned int t = x + (x >> 16) /*+ (x >> 31)*/ + r;
+ double v = x, errtest;
+
+ if (t < x) {
+ fprintf(stderr, "overflow: %u+%u -> %u\n", x, r, t);
+ return 1;
+ }
+
+ v /= 65535;
+ errtest = v;
+ t >>= 16;
+ errtest -= t;
+
+ if (errtest > err) {
+ err = errtest;
+ xerr = x;
+
+ if (errtest >= .5) {
+ fprintf(stderr, "error: %u/65535 = %f, not %u, error %f\n",
+ x, v, t, errtest);
+ return 0;
+ }
+ }
+ } while (++x <= 65535U*65535U);
+ }
+
+ printf("error %f @ %u\n", err, xerr);
+
+ return 0;
+}
+#endif /* div by 65535 test program */
+
+static void
+sprite_op(const struct sprite *sprite, int x_offset, int y_offset,
+ png_imagep image, const png_uint_16 *buffer)
+{
+ /* This is where the Porter-Duff 'Over' operator is evaluated; change this
+ * code to change the operator (this could be parameterized). Any other
+ * image processing operation could be used here.
+ */
+
+
+ /* Check for an x or y offset that pushes any part of the image beyond the
+ * right or bottom of the sprite:
+ */
+ if ((y_offset < 0 || (unsigned)/*SAFE*/y_offset < sprite->height) &&
+ (x_offset < 0 || (unsigned)/*SAFE*/x_offset < sprite->width))
+ {
+ unsigned int y = 0;
+
+ if (y_offset < 0)
+ y = -y_offset; /* Skip to first visible row */
+
+ do
+ {
+ unsigned int x = 0;
+
+ if (x_offset < 0)
+ x = -x_offset;
+
+ do
+ {
+ /* In and out are RGBA values, so: */
+ const png_uint_16 *in_pixel = buffer + (y * image->width + x)*4;
+ png_uint_32 in_alpha = in_pixel[3];
+
+ /* This is the optimized Porter-Duff 'Over' operation, when the
+ * input alpha is 0 the output is not changed.
+ */
+ if (in_alpha > 0)
+ {
+ png_uint_16 *out_pixel = sprite->buffer +
+ ((y+y_offset) * sprite->width + (x+x_offset))*4;
+
+ /* This is the weight to apply to the output: */
+ in_alpha = 65535-in_alpha;
+
+ if (in_alpha > 0)
+ {
+ /* The input must be composed onto the output. This means
+ * multiplying the current output pixel value by the inverse
+ * of the input alpha (1-alpha). A division is required but
+ * it is by the constant 65535. Approximate this as:
+ *
+ * (x + (x >> 16) + 32769) >> 16;
+ *
+ * This is exact (and does not overflow) for all values of
+ * x in the range 0..65535*65535. (Note that the calculation
+ * produces the closest integer; the maximum error is <0.5).
+ */
+ png_uint_32 tmp;
+
+# define compose(c)\
+ tmp = out_pixel[c] * in_alpha;\
+ tmp = (tmp + (tmp >> 16) + 32769) >> 16;\
+ out_pixel[c] = tmp + in_pixel[c]
+
+ /* The following is very vectorizable... */
+ compose(0);
+ compose(1);
+ compose(2);
+ compose(3);
+ }
+
+ else
+ out_pixel[0] = in_pixel[0],
+ out_pixel[1] = in_pixel[1],
+ out_pixel[2] = in_pixel[2],
+ out_pixel[3] = in_pixel[3];
+ }
+ }
+ while (++x < image->width);
+ }
+ while (++y < image->height);
+ }
+}
+
+static int
+create_sprite(struct sprite *sprite, int *argc, const char ***argv)
+{
+ /* Read the arguments and create this sprite. The sprite buffer has already
+ * been allocated. This reads the input PNGs one by one in linear format,
+ * composes them onto the sprite buffer (the code in the function above)
+ * then saves the result, converting it on the fly to PNG RGBA 8-bit format.
+ */
+ while (*argc > 0)
+ {
+ char tombstone;
+ int x = 0, y = 0;
+
+ if ((*argv)[0][0] == '-' && (*argv)[0][1] == '-')
+ {
+ /* The only supported option is --at. */
+ if (sscanf((*argv)[0], "--at=%d,%d%c", &x, &y, &tombstone) != 2)
+ break; /* success; caller will parse this option */
+
+ ++*argv, --*argc;
+ }
+
+ else
+ {
+ /* The argument has to be a file name */
+ png_image image;
+
+ image.version = PNG_IMAGE_VERSION;
+ image.opaque = NULL;
+
+ if (png_image_begin_read_from_file(&image, (*argv)[0]))
+ {
+ png_uint_16p buffer;
+
+ image.format = PNG_FORMAT_LINEAR_RGB_ALPHA;
+
+ buffer = malloc(PNG_IMAGE_SIZE(image));
+
+ if (buffer != NULL)
+ {
+ if (png_image_finish_read(&image, NULL/*background*/, buffer,
+ 0/*row_stride*/,
+ NULL/*colormap for PNG_FORMAT_FLAG_COLORMAP*/))
+ {
+ /* This is the place where the Porter-Duff 'Over' operator
+ * needs to be done by this code. In fact, any image
+ * processing required can be done here; the data is in
+ * the correct format (linear, 16-bit) and source and
+ * destination are in memory.
+ */
+ sprite_op(sprite, x, y, &image, buffer);
+ free(buffer);
+ ++*argv, --*argc;
+ /* And continue to the next argument */
+ continue;
+ }
+
+ else
+ {
+ free(buffer);
+ fprintf(stderr, "simpleover: read %s: %s\n", (*argv)[0],
+ image.message);
+ }
+ }
+
+ else
+ {
+ fprintf(stderr, "simpleover: out of memory: %lu bytes\n",
+ (unsigned long)PNG_IMAGE_SIZE(image));
+
+ /* png_image_free must be called if we abort the Simplified API
+ * read because of a problem detected in this code. If problems
+ * are detected in the Simplified API it cleans up itself.
+ */
+ png_image_free(&image);
+ }
+ }
+
+ else
+ {
+ /* Failed to read the first argument: */
+ fprintf(stderr, "simpleover: %s: %s\n", (*argv)[0], image.message);
+ }
+
+ return 0; /* failure */
+ }
+ }
+
+ /* All the sprite operations have completed successfully. Save the RGBA
+ * buffer as a PNG using the simplified write API.
+ */
+ sprite->file = tmpfile();
+
+ if (sprite->file != NULL)
+ {
+ png_image save;
+
+ memset(&save, 0, sizeof save);
+ save.version = PNG_IMAGE_VERSION;
+ save.opaque = NULL;
+ save.width = sprite->width;
+ save.height = sprite->height;
+ save.format = PNG_FORMAT_LINEAR_RGB_ALPHA;
+ save.flags = PNG_IMAGE_FLAG_FAST;
+ save.colormap_entries = 0;
+
+ if (png_image_write_to_stdio(&save, sprite->file, 1/*convert_to_8_bit*/,
+ sprite->buffer, 0/*row_stride*/, NULL/*colormap*/))
+ {
+ /* Success; the buffer is no longer needed: */
+ free(sprite->buffer);
+ sprite->buffer = NULL;
+ return 1; /* ok */
+ }
+
+ else
+ fprintf(stderr, "simpleover: write sprite %s: %s\n", sprite->name,
+ save.message);
+ }
+
+ else
+ fprintf(stderr, "simpleover: sprite %s: could not allocate tmpfile: %s\n",
+ sprite->name, strerror(errno));
+
+ return 0; /* fail */
+}
+
+static int
+add_sprite(png_imagep output, png_bytep out_buf, struct sprite *sprite,
+ int *argc, const char ***argv)
+{
+ /* Given a --add argument naming this sprite, perform the operations listed
+ * in the following arguments. The arguments are expected to have the form
+ * (x,y), which is just an offset at which to add the sprite to the
+ * output.
+ */
+ while (*argc > 0)
+ {
+ char tombstone;
+ int x, y;
+
+ if ((*argv)[0][0] == '-' && (*argv)[0][1] == '-')
+ return 1; /* success */
+
+ if (sscanf((*argv)[0], "%d,%d%c", &x, &y, &tombstone) == 2)
+ {
+ /* Now add the new image into the sprite data, but only if it
+ * will fit.
+ */
+ if (x < 0 || y < 0 ||
+ (unsigned)/*SAFE*/x >= output->width ||
+ (unsigned)/*SAFE*/y >= output->height ||
+ sprite->width > output->width-x ||
+ sprite->height > output->height-y)
+ {
+ fprintf(stderr, "simpleover: sprite %s @ (%d,%d) outside image\n",
+ sprite->name, x, y);
+ /* Could just skip this, but for the moment it is an error */
+ return 0; /* error */
+ }
+
+ else
+ {
+ /* Since we know the sprite fits we can just read it into the
+ * output using the simplified API.
+ */
+ png_image in;
+
+ in.version = PNG_IMAGE_VERSION;
+ rewind(sprite->file);
+
+ if (png_image_begin_read_from_stdio(&in, sprite->file))
+ {
+ in.format = PNG_FORMAT_RGB; /* force compose */
+
+ if (png_image_finish_read(&in, NULL/*background*/,
+ out_buf + (y*output->width + x)*3/*RGB*/,
+ output->width*3/*row_stride*/,
+ NULL/*colormap for PNG_FORMAT_FLAG_COLORMAP*/))
+ {
+ ++*argv, --*argc;
+ continue;
+ }
+ }
+
+ /* The read failed: */
+ fprintf(stderr, "simpleover: add sprite %s: %s\n", sprite->name,
+ in.message);
+ return 0; /* error */
+ }
+ }
+
+ else
+ {
+ fprintf(stderr, "simpleover: --add='%s': invalid position %s\n",
+ sprite->name, (*argv)[0]);
+ return 0; /* error */
+ }
+ }
+
+ return 1; /* ok */
+}
+
+static int
+simpleover_process(png_imagep output, png_bytep out_buf, int argc,
+ const char **argv)
+{
+ int result = 1; /* success */
+# define csprites 10/*limit*/
+# define str(a) #a
+ int nsprites = 0;
+ struct sprite sprites[csprites];
+
+ while (argc > 0)
+ {
+ result = 0; /* fail */
+
+ if (strncmp(argv[0], "--sprite=", 9) == 0)
+ {
+ char tombstone;
+
+ if (nsprites < csprites)
+ {
+ int n;
+
+ sprites[nsprites].width = sprites[nsprites].height = 0;
+ sprites[nsprites].name[0] = 0;
+
+ n = sscanf(argv[0], "--sprite=%u,%u,%" str(sprite_name_chars) "s%c",
+ &sprites[nsprites].width, &sprites[nsprites].height,
+ sprites[nsprites].name, &tombstone);
+
+ if ((n == 2 || n == 3) &&
+ sprites[nsprites].width > 0 && sprites[nsprites].height > 0)
+ {
+ size_t buf_size, tmp;
+
+ /* Default a name if not given. */
+ if (sprites[nsprites].name[0] == 0)
+ sprintf(sprites[nsprites].name, "sprite-%d", nsprites+1);
+
+ /* Allocate a buffer for the sprite and calculate the buffer
+ * size:
+ */
+ buf_size = sizeof (png_uint_16 [4]);
+ buf_size *= sprites[nsprites].width;
+ buf_size *= sprites[nsprites].height;
+
+ /* This can overflow a (size_t); check for this: */
+ tmp = buf_size;
+ tmp /= sprites[nsprites].width;
+ tmp /= sprites[nsprites].height;
+
+ if (tmp == sizeof (png_uint_16 [4]))
+ {
+ sprites[nsprites].buffer = malloc(buf_size);
+ /* This buffer must be initialized to transparent: */
+ memset(sprites[nsprites].buffer, 0, buf_size);
+
+ if (sprites[nsprites].buffer != NULL)
+ {
+ sprites[nsprites].file = NULL;
+ ++argv, --argc;
+
+ if (create_sprite(sprites+nsprites++, &argc, &argv))
+ {
+ result = 1; /* still ok */
+ continue;
+ }
+
+ break; /* error */
+ }
+ }
+
+ /* Overflow, or OOM */
+ fprintf(stderr, "simpleover: %s: sprite too large\n", argv[0]);
+ break;
+ }
+
+ else
+ {
+ fprintf(stderr, "simpleover: %s: invalid sprite (%u,%u)\n",
+ argv[0], sprites[nsprites].width, sprites[nsprites].height);
+ break;
+ }
+ }
+
+ else
+ {
+ fprintf(stderr, "simpleover: %s: too many sprites\n", argv[0]);
+ break;
+ }
+ }
+
+ else if (strncmp(argv[0], "--add=", 6) == 0)
+ {
+ const char *name = argv[0]+6;
+ int isprite = nsprites;
+
+ ++argv, --argc;
+
+ while (--isprite >= 0)
+ {
+ if (strcmp(sprites[isprite].name, name) == 0)
+ {
+ if (!add_sprite(output, out_buf, sprites+isprite, &argc, &argv))
+ goto out; /* error in add_sprite */
+
+ break;
+ }
+ }
+
+ if (isprite < 0) /* sprite not found */
+ {
+ fprintf(stderr, "simpleover: --add='%s': sprite not found\n", name);
+ break;
+ }
+ }
+
+ else
+ {
+ fprintf(stderr, "simpleover: %s: unrecognized operation\n", argv[0]);
+ break;
+ }
+
+ result = 1; /* ok */
+ }
+
+ /* Clean up the cache of sprites: */
+out:
+ while (--nsprites >= 0)
+ {
+ if (sprites[nsprites].buffer != NULL)
+ free(sprites[nsprites].buffer);
+
+ if (sprites[nsprites].file != NULL)
+ (void)fclose(sprites[nsprites].file);
+ }
+
+ return result;
+}
+
+int main(int argc, const char **argv)
+{
+ int result = 1; /* default to fail */
+
+ if (argc >= 2)
+ {
+ int argi = 2;
+ const char *output = NULL;
+ png_image image;
+
+ if (argc > 2 && argv[2][0] != '-'/*an operation*/)
+ {
+ output = argv[2];
+ argi = 3;
+ }
+
+ image.version = PNG_IMAGE_VERSION;
+ image.opaque = NULL;
+
+ if (png_image_begin_read_from_file(&image, argv[1]))
+ {
+ png_bytep buffer;
+
+ image.format = PNG_FORMAT_RGB; /* 24-bit RGB */
+
+ buffer = malloc(PNG_IMAGE_SIZE(image));
+
+ if (buffer != NULL)
+ {
+ png_color background = {0, 0xff, 0}; /* fully saturated green */
+
+ if (png_image_finish_read(&image, &background, buffer,
+ 0/*row_stride*/, NULL/*colormap for PNG_FORMAT_FLAG_COLORMAP */))
+ {
+ /* At this point png_image_finish_read has cleaned up the
+ * allocated data in png_image, and only the buffer needs to be
+ * freed.
+ *
+ * Perform the remaining operations:
+ */
+ if (simpleover_process(&image, buffer, argc-argi, argv+argi))
+ {
+ /* Write the output: */
+ if ((output != NULL &&
+ png_image_write_to_file(&image, output,
+ 0/*convert_to_8bit*/, buffer, 0/*row_stride*/,
+ NULL/*colormap*/)) ||
+ (output == NULL &&
+ png_image_write_to_stdio(&image, stdout,
+ 0/*convert_to_8bit*/, buffer, 0/*row_stride*/,
+ NULL/*colormap*/)))
+ result = 0;
+
+ else
+ fprintf(stderr, "simpleover: write %s: %s\n",
+ output == NULL ? "stdout" : output, image.message);
+ }
+
+ /* else simpleover_process writes an error message */
+ }
+
+ else
+ fprintf(stderr, "simpleover: read %s: %s\n", argv[1],
+ image.message);
+
+ free(buffer);
+ }
+
+ else
+ {
+ fprintf(stderr, "simpleover: out of memory: %lu bytes\n",
+ (unsigned long)PNG_IMAGE_SIZE(image));
+
+ /* This is the only place where a 'free' is required; libpng does
+ * the cleanup on error and success, but in this case we couldn't
+ * complete the read because of running out of memory.
+ */
+ png_image_free(&image);
+ }
+ }
+
+ else
+ {
+ /* Failed to read the first argument: */
+ fprintf(stderr, "simpleover: %s: %s\n", argv[1], image.message);
+ }
+ }
+
+ else
+ {
+ /* Usage message */
+ fprintf(stderr,
+ "simpleover: usage: simpleover background.png [output.png]\n"
+ " Output 'background.png' as a 24-bit RGB PNG file in 'output.png'\n"
+ " or, if not given, stdout. 'background.png' will be composited\n"
+ " on fully saturated green.\n"
+ "\n"
+ " Optionally, before output, process additional PNG files:\n"
+ "\n"
+ " --sprite=width,height,name {[--at=x,y] {sprite.png}}\n"
+ " Produce a transparent sprite of size (width,height) and with\n"
+ " name 'name'.\n"
+ " For each sprite.png composite it using a Porter-Duff 'Over'\n"
+ " operation at offset (x,y) in the sprite (defaulting to (0,0)).\n"
+ " Input PNGs will be truncated to the area of the sprite.\n"
+ "\n"
+ " --add='name' {x,y}\n"
+ " Optionally, before output, composite a sprite, 'name', which\n"
+ " must have been previously produced using --sprite, at each\n"
+ " offset (x,y) in the output image. Each sprite must fit\n"
+ " completely within the output image.\n"
+ "\n"
+ " PNG files are processed in the order they occur on the command\n"
+ " line and thus the first PNG processed appears as the bottommost\n"
+ " in the output image.\n");
+ }
+
+ return result;
+}
+#endif /* SIMPLIFIED_READ */
/* could pass pointers to user-defined error handlers instead of NULLs: */
- png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+ png_ptr = png_create_read_struct(png_get_libpng_ver(NULL), NULL, NULL,
+ NULL);
if (!png_ptr)
return 4; /* out of memory */
---------------------------------------------------------------------------
- Copyright (c) 1998-2007 Greg Roelofs. All rights reserved.
+ Copyright (c) 1998-2015 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ ---------------------------------------------------------------------------
+
+ Changelog:
+ %RDATE% - Check return value of png_get_bKGD() (Glenn R-P)
+
---------------------------------------------------------------------------*/
/* could also replace libpng warning-handler (final NULL), but no need: */
- png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, mainprog_ptr,
+ png_ptr = png_create_read_struct(png_get_libpng_ver(NULL), mainprog_ptr,
readpng2_error_handler, readpng2_warning_handler);
if (!png_ptr)
return 4; /* out of memory */
/* since we know we've read all of the PNG file's "header" (i.e., up
* to IDAT), we can check for a background color here */
- if (mainprog_ptr->need_bgcolor &&
- png_get_valid(png_ptr, info_ptr, PNG_INFO_bKGD))
+ if (mainprog_ptr->need_bgcolor)
{
png_color_16p pBackground;
/* it is not obvious from the libpng documentation, but this function
* takes a pointer to a pointer, and it always returns valid red,
* green and blue values, regardless of color_type: */
- png_get_bKGD(png_ptr, info_ptr, &pBackground);
-
- /* however, it always returns the raw bKGD data, regardless of any
- * bit-depth transformations, so check depth and adjust if necessary */
- if (bit_depth == 16) {
- mainprog_ptr->bg_red = pBackground->red >> 8;
- mainprog_ptr->bg_green = pBackground->green >> 8;
- mainprog_ptr->bg_blue = pBackground->blue >> 8;
- } else if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) {
- if (bit_depth == 1)
- mainprog_ptr->bg_red = mainprog_ptr->bg_green =
- mainprog_ptr->bg_blue = pBackground->gray? 255 : 0;
- else if (bit_depth == 2)
- mainprog_ptr->bg_red = mainprog_ptr->bg_green =
- mainprog_ptr->bg_blue = (255/3) * pBackground->gray;
- else /* bit_depth == 4 */
- mainprog_ptr->bg_red = mainprog_ptr->bg_green =
- mainprog_ptr->bg_blue = (255/15) * pBackground->gray;
- } else {
- mainprog_ptr->bg_red = (uch)pBackground->red;
- mainprog_ptr->bg_green = (uch)pBackground->green;
- mainprog_ptr->bg_blue = (uch)pBackground->blue;
+ if (png_get_bKGD(png_ptr, info_ptr, &pBackground))
+ {
+
+ /* however, it always returns the raw bKGD data, regardless of any
+ * bit-depth transformations, so check depth and adjust if necessary
+ */
+ if (bit_depth == 16) {
+ mainprog_ptr->bg_red = pBackground->red >> 8;
+ mainprog_ptr->bg_green = pBackground->green >> 8;
+ mainprog_ptr->bg_blue = pBackground->blue >> 8;
+ } else if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) {
+ if (bit_depth == 1)
+ mainprog_ptr->bg_red = mainprog_ptr->bg_green =
+ mainprog_ptr->bg_blue = pBackground->gray? 255 : 0;
+ else if (bit_depth == 2)
+ mainprog_ptr->bg_red = mainprog_ptr->bg_green =
+ mainprog_ptr->bg_blue = (255/3) * pBackground->gray;
+ else /* bit_depth == 4 */
+ mainprog_ptr->bg_red = mainprog_ptr->bg_green =
+ mainprog_ptr->bg_blue = (255/15) * pBackground->gray;
+ } else {
+ mainprog_ptr->bg_red = (uch)pBackground->red;
+ mainprog_ptr->bg_green = (uch)pBackground->green;
+ mainprog_ptr->bg_blue = (uch)pBackground->blue;
+ }
}
}
- 2.02: fixed improper display of usage screen on PNG error(s); fixed
unexpected-EOF and file-read-error cases
- 2.03: removed runtime MMX-enabling/disabling and obsolete -mmx* options
- - 2.04:
+ - 2.04:
(GR-P)
---------------------------------------------------------------------------
- 2.03: deleted runtime MMX-enabling/disabling and obsolete -mmx* options
- 2.04: Added "void(foo);" statements to quiet pedantic compiler warnings
about unused variables (GR-P)
-
- TO DO:
- use nanosleep() instead of usleep(), which is obsolete/deprecated.
+ - 2.05: Use nanosleep() instead of usleep(), which is deprecated (GR-P).
---------------------------------------------------------------------------
- Copyright (c) 1998-2008 Greg Roelofs. All rights reserved.
+ Copyright (c) 1998-2010, 2014-2015 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
#define RESNAME "rpng2" /* our X resource application name */
#define RESCLASS "Rpng" /* our X resource class name */
-/* This is temporary until the code is rewritten to use nanosleep(). */
-#define usleep(x) sleep(((x)+499999)/1000000)
-
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <X11/Xos.h>
#include <X11/keysym.h> /* defines XK_* macros */
+#if _POSIX_C_SOURCE >= 199309L /* have nanosleep() */
+# undef usleep
+# define usleep(usec) { \
+ struct timespec ts; \
+ ts.tv_sec = 0; \
+ ts.tv_nsec = (usec) * 1000; \
+ nanosleep(&ts, NULL); }
+# endif
+
+#ifndef usleep /* have neither nanosleep() nor usleep() */
+# define usleep(x) sleep(((x)+499999)/1000000)
+#endif
+
#ifdef VMS
# include <unistd.h>
#endif
"\t\t transparent images; overrides -bgcolor\n",
num_bgpat-1);
#ifdef FEATURE_LOOP
- fprintf(stderr,
+ fprintf(stderr,
" -loop\tloops through background images after initial display\n"
"\t\t is complete (depends on -bgpat)\n"
" sec \tseconds to display each background image (default = 2)\n");
#endif
- fprintf(stderr,
+ fprintf(stderr,
" dur \tduration in microseconds to wait after displaying each\n"
"\t\t row (for demo purposes)\n"
" -timing\tenables delay for every block read, to simulate modem\n"
/* could also replace libpng warning-handler (final NULL), but no need: */
- png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, mainprog_ptr,
+ png_ptr = png_create_write_struct(png_get_libpng_ver(NULL), mainprog_ptr,
writepng_error_handler, NULL);
if (!png_ptr)
return 4; /* out of memory */
-/* Fake a PNG - just write it out directly. */
+/* Fake a PNG - just write it out directly.
+ *
+ * COPYRIGHT: Written by John Cunningham Bowler, 2014.
+ * To the extent possible under law, the author has waived all copyright and
+ * related or neighboring rights to this work. This work is published from:
+ * United States.
+ *
+ */
+
#include <stdio.h>
#include <zlib.h> /* for crc32 */
fwrite(signature, sizeof signature, 1, stdout);
put_chunk(IHDR, sizeof IHDR);
- for(;;)
+ for (;;)
put_chunk(unknown, sizeof unknown);
}
-/* makepng.c
- *
- * Copyright (c) 2013 John Cunningham Bowler
- *
- * Last changed in libpng 1.6.1 [March 28, 2013]
+/* makepng.c */
+#define _ISOC99_SOURCE
+/* Copyright: */
+#define COPYRIGHT "\251 2013,2015 John Cunningham Bowler"
+/*
+ * Last changed in libpng 1.6.20 [November 24, 2015]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
*
* Make a test PNG image. The arguments are as follows:
*
- * makepng [--sRGB|--linear|--1.8] [--color=<color>] color-type bit-depth \
- * [file-name]
+ * makepng [--sRGB|--linear|--1.8] [--tRNS] [--nofilters] \
+ * color-type bit-depth [file-name]
*
* The color-type may be numeric (and must match the numbers used by the PNG
* specification) or one of the format names listed below. The bit-depth is the
* 4 channels: linear combinations of, from the top-left corner clockwise,
* transparent, red, green, blue.
*
- * For color-mapped images a four channel color-map is used and the PNG file has
- * a tRNS chunk, as follows:
+ * For color-mapped images a four channel color-map is used and if --tRNS is
+ * given the PNG file has a tRNS chunk, as follows:
*
* 1-bit: entry 0 is transparent-red, entry 1 is opaque-white
* 2-bit: entry 0: transparent-green
* The palette always has 2^bit-depth entries and the tRNS chunk one fewer. The
* image is the 1-channel diamond, but using palette index, not luminosity.
*
+ * For formats other than color-mapped ones if --tRNS is specified a tRNS chunk
+ * is generated with all channels equal to the low bits of 0x0101.
+ *
* Image size is determined by the final pixel depth in bits, i.e. channels x
* bit-depth, as follows:
*
* 16 bits: 256x256
* More than 16 bits: 1024x1024
*
- * Row filtering is turned off (the 'none' filter is used on every row) and the
- * images are not interlaced.
+ * Row filtering is the libpng default but may be turned off (the 'none' filter
+ * is used on every row) with the --nofilters option.
*
- * If --color is given then the whole image has that color, color-mapped images
- * will have exactly one palette entry and all image files with be 16x16 in
- * size. The color value is 1 to 4 decimal numbers as appropriate for the color
- * type.
+ * The images are not interlaced.
*
* If file-name is given then the PNG is written to that file, else it is
* written to stdout. Notice that stdout is not supported on systems where, by
* default, it assumes text output; this program makes no attempt to change the
* text mode of stdout!
+ *
+ * makepng --color=<color> ...
+ *
+ * If --color is given then the whole image has that color, color-mapped images
+ * will have exactly one palette entry and all image files with be 16x16 in
+ * size. The color value is 1 to 4 decimal numbers as appropriate for the color
+ * type.
+ *
+ * makepng --small ...
+ *
+ * If --small is given the images are no larger than required to include every
+ * possible pixel value for the format.
+ *
+ * For formats with pixels 8 bits or fewer in size the images consist of a
+ * single row with 2^pixel-depth pixels, one of every possible value.
+ *
+ * For formats with 16-bit pixels a 256x256 image is generated containing every
+ * possible pixel value.
+ *
+ * For larger pixel sizes a 256x256 image is generated where the first row
+ * consists of each pixel that has identical byte values throughout the pixel
+ * followed by rows where the byte values differ within the pixel.
+ *
+ * In all cases the pixel values are arranged in such a way that the SUB and UP
+ * filters give byte sequences for maximal zlib compression. By default (if
+ * --nofilters is not given) the SUB filter is used on the first row and the UP
+ * filter on all following rows.
+ *
+ * The --small option is meant to provide good test-case coverage, however the
+ * images are not easy to examine visually. Without the --small option the
+ * images contain identical color values; the pixel values are adjusted
+ * according to the gamma encoding with no gamma encoding being interpreted as
+ * sRGB.
+ *
+ * LICENSING
+ * =========
+ *
+ * This code is copyright of the authors, see the COPYRIGHT define above. The
+ * code is licensed as above, using the libpng license. The code generates
+ * images which are solely the product of the code; the options choose which of
+ * the many possibilities to generate. The images that result (but not the code
+ * which generates them) are licensed as defined here:
+ *
+ * IMPORTANT: the COPYRIGHT #define must contain ISO-Latin-1 characters, the
+ * IMAGE_LICENSING #define must contain UTF-8 characters. The 'copyright'
+ * symbol 0xA9U (\251) in ISO-Latin-1 encoding and 0xC20xA9 (\302\251) in UTF-8.
*/
-#define _ISOC99_SOURCE /* for strtoull */
+#define IMAGE_LICENSING "Dedicated to the public domain per Creative Commons "\
+ "license \"CC0 1.0\"; https://creativecommons.org/publicdomain/zero/1.0/"
#include <stddef.h> /* for offsetof */
#include <stdlib.h>
#include <ctype.h>
#include <math.h>
#include <errno.h>
+#include <assert.h>
+#include <stdint.h>
#if defined(HAVE_CONFIG_H) && !defined(PNG_NO_CONFIG_H)
# include <config.h>
# include "../../png.h"
#endif
+#include <zlib.h>
+
+/* Work round for GCC complaints about casting a (double) function result to
+ * an unsigned:
+ */
+static unsigned int
+flooru(double d)
+{
+ d = floor(d);
+ return (unsigned int)d;
+}
+
+static png_byte
+floorb(double d)
+{
+ d = floor(d);
+ return (png_byte)d;
+}
+
/* This structure is used for inserting extra chunks (the --insert argument, not
* documented above.)
*/
png_charp parameters[1];
} chunk_insert;
-static int
+static unsigned int
channels_of_type(int color_type)
{
if (color_type & PNG_COLOR_MASK_PALETTE)
}
}
-static int
+static unsigned int
pixel_depth_of_type(int color_type, int bit_depth)
{
return channels_of_type(color_type) * bit_depth;
}
static unsigned int
-image_size_of_type(int color_type, int bit_depth, unsigned int *colors)
+image_size_of_type(int color_type, int bit_depth, unsigned int *colors,
+ int small)
{
if (*colors)
return 16;
{
int pixel_depth = pixel_depth_of_type(color_type, bit_depth);
- if (pixel_depth < 8)
+ if (small)
+ {
+ if (pixel_depth <= 8) /* there will be one row */
+ return 1 << pixel_depth;
+
+ else
+ return 256;
+ }
+
+ else if (pixel_depth < 8)
return 64;
else if (pixel_depth > 16)
else
{
unsigned int size = 1U << (bit_depth/2); /* 2, 4 or 16 */
- unsigned int x, y, ip;
+ unsigned int x, y;
+ volatile unsigned int ip = 0;
for (x=0; x<size; ++x) for (y=0; y<size; ++y)
{
exit(1);
case 16:
- value = (unsigned int)floor(65535*pow(value/65535.,conv)+.5);
+ value = flooru(65535*pow(value/65535.,conv)+.5);
*row++ = (png_byte)(value >> 8);
*row = (png_byte)value;
return;
}
}
-static void
+static int /* filter mask for row */
generate_row(png_bytep row, size_t rowbytes, unsigned int y, int color_type,
int bit_depth, png_const_bytep gamma_table, double conv,
- unsigned int *colors)
+ unsigned int *colors, int small)
{
- png_uint_32 size_max = image_size_of_type(color_type, bit_depth, colors)-1;
+ int filters = 0; /* file *MASK*, 0 means the default, not NONE */
+ png_uint_32 size_max =
+ image_size_of_type(color_type, bit_depth, colors, small)-1;
png_uint_32 depth_max = (1U << bit_depth)-1; /* up to 65536 */
- if (colors[0] == 0) switch (channels_of_type(color_type))
+ if (colors[0] == 0) if (small)
+ {
+ unsigned int pixel_depth = pixel_depth_of_type(color_type, bit_depth);
+
+ /* For pixel depths less than 16 generate a single row containing all the
+ * possible pixel values. For 16 generate all 65536 byte pair
+ * combinations in a 256x256 pixel array.
+ */
+ switch (pixel_depth)
+ {
+ case 1:
+ assert(y == 0 && rowbytes == 1 && size_max == 1);
+ row[0] = 0x6CU; /* binary: 01101100, only top 2 bits used */
+ filters = PNG_FILTER_NONE;
+ break;
+
+ case 2:
+ assert(y == 0 && rowbytes == 1 && size_max == 3);
+ row[0] = 0x1BU; /* binary 00011011, all bits used */
+ filters = PNG_FILTER_NONE;
+ break;
+
+ case 4:
+ assert(y == 0 && rowbytes == 8 && size_max == 15);
+ row[0] = 0x01U;
+ row[1] = 0x23U; /* SUB gives 0x22U for all following bytes */
+ row[2] = 0x45U;
+ row[3] = 0x67U;
+ row[4] = 0x89U;
+ row[5] = 0xABU;
+ row[6] = 0xCDU;
+ row[7] = 0xEFU;
+ filters = PNG_FILTER_SUB;
+ break;
+
+ case 8:
+ /* The row will have all the pixel values in order starting with
+ * '1', the SUB filter will change every byte into '1' (including
+ * the last, which generates pixel value '0'). Since the SUB filter
+ * has value 1 this should result in maximum compression.
+ */
+ assert(y == 0 && rowbytes == 256 && size_max == 255);
+ for (;;)
+ {
+ row[size_max] = 0xFFU & (size_max+1);
+ if (size_max == 0)
+ break;
+ --size_max;
+ }
+ filters = PNG_FILTER_SUB;
+ break;
+
+ case 16:
+ /* Rows are generated such that each row has a constant difference
+ * between the first and second byte of each pixel and so that the
+ * difference increases by 1 at each row. The rows start with the
+ * first byte value of 0 and the value increases to 255 across the
+ * row.
+ *
+ * The difference starts at 1, so the first row is:
+ *
+ * 0 1 1 2 2 3 3 4 ... 254 255 255 0
+ *
+ * This means that running the SUB filter on the first row produces:
+ *
+ * [SUB==1] 0 1 0 1 0 1...
+ *
+ * Then the difference is 2 on the next row, giving:
+ *
+ * 0 2 1 3 2 4 3 5 ... 254 0 255 1
+ *
+ * When the UP filter is run on this libpng produces:
+ *
+ * [UP ==2] 0 1 0 1 0 1...
+ *
+ * And so on for all the remain rows to the final two * rows:
+ *
+ * row 254: 0 255 1 0 2 1 3 2 4 3 ... 254 253 255 254
+ * row 255: 0 0 1 1 2 2 3 3 4 4 ... 254 254 255 255
+ */
+ assert(rowbytes == 512 && size_max == 255);
+ for (;;)
+ {
+ row[2*size_max ] = 0xFFU & size_max;
+ row[2*size_max+1] = 0xFFU & (size_max+y+1);
+ if (size_max == 0)
+ break;
+ --size_max;
+ }
+ /* The first row must include PNG_FILTER_UP so that libpng knows we
+ * need to keep it for the following row:
+ */
+ filters = (y == 0 ? PNG_FILTER_SUB+PNG_FILTER_UP : PNG_FILTER_UP);
+ break;
+
+ case 24:
+ case 32:
+ case 48:
+ case 64:
+ /* The rows are filled by an alogorithm similar to the above, in the
+ * first row pixel bytes are all equal, increasing from 0 by 1 for
+ * each pixel. In the second row the bytes within a pixel are
+ * incremented 1,3,5,7,... from the previous row byte. Using an odd
+ * number ensures all the possible byte values are used.
+ */
+ assert(size_max == 255 && rowbytes == 256*(pixel_depth>>3));
+ pixel_depth >>= 3; /* now in bytes */
+ while (rowbytes > 0)
+ {
+ const size_t pixel_index = --rowbytes/pixel_depth;
+
+ if (y == 0)
+ row[rowbytes] = 0xFFU & pixel_index;
+
+ else
+ {
+ const size_t byte_offset =
+ rowbytes - pixel_index * pixel_depth;
+
+ row[rowbytes] =
+ 0xFFU & (pixel_index + (byte_offset * 2*y) + 1);
+ }
+ }
+ filters = (y == 0 ? PNG_FILTER_SUB+PNG_FILTER_UP : PNG_FILTER_UP);
+ break;
+
+ default:
+ assert(0/*NOT REACHED*/);
+ }
+ }
+
+ else switch (channels_of_type(color_type))
{
/* 1 channel: a square image with a diamond, the least luminous colors are on
* the edge of the image, the most luminous in the center.
colors[0], channels_of_type(color_type));
exit(1);
}
+
+ return filters;
}
static int /* 0 on success, else an error code */
write_png(const char **name, FILE *fp, int color_type, int bit_depth,
volatile png_fixed_point gamma, chunk_insert * volatile insert,
- unsigned int filters, unsigned int *colors)
+ unsigned int filters, unsigned int *colors, int small, int tRNS)
{
png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
name, makepng_error, makepng_warning);
/* Allow benign errors so that we can write PNGs with errors */
png_set_benign_errors(png_ptr, 1/*allowed*/);
+
+ /* Max out the text compression level in an attempt to make the license
+ * small. If --small then do the same for the IDAT.
+ */
+ if (small)
+ png_set_compression_level(png_ptr, Z_BEST_COMPRESSION);
+
+ png_set_text_compression_level(png_ptr, Z_BEST_COMPRESSION);
+
png_init_io(png_ptr, fp);
info_ptr = png_create_info_struct(png_ptr);
png_error(png_ptr, "OOM allocating info structure");
{
- unsigned int size = image_size_of_type(color_type, bit_depth, colors);
+ const unsigned int size =
+ image_size_of_type(color_type, bit_depth, colors, small);
+ unsigned int ysize;
png_fixed_point real_gamma = 45455; /* For sRGB */
png_byte gamma_table[256];
double conv;
+ /* Normally images are square, but with 'small' we want to simply generate
+ * all the pixel values, or all that we reasonably can:
+ */
+ if (small)
+ {
+ const unsigned int pixel_depth =
+ pixel_depth_of_type(color_type, bit_depth);
+
+ if (pixel_depth <= 8U)
+ {
+ assert(size == (1U<<pixel_depth));
+ ysize = 1U;
+ }
+
+ else
+ {
+ assert(size == 256U);
+ ysize = 256U;
+ }
+ }
+
+ else
+ ysize = size;
+
/* This function uses the libpng values used on read to carry extra
* information about the gamma:
*/
gamma_table[0] = 0;
for (i=1; i<255; ++i)
- gamma_table[i] = (png_byte)floor(pow(i/255.,conv) * 255 + .5);
+ gamma_table[i] = floorb(pow(i/255.,conv) * 255 + .5);
gamma_table[255] = 255;
}
}
- png_set_IHDR(png_ptr, info_ptr, size, size, bit_depth, color_type,
+ png_set_IHDR(png_ptr, info_ptr, size, ysize, bit_depth, color_type,
PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
if (color_type & PNG_COLOR_MASK_PALETTE)
npalette = generate_palette(palette, trans, bit_depth, gamma_table,
colors);
png_set_PLTE(png_ptr, info_ptr, palette, npalette);
- png_set_tRNS(png_ptr, info_ptr, trans, npalette-1,
- NULL/*transparent color*/);
+
+ if (tRNS)
+ png_set_tRNS(png_ptr, info_ptr, trans, npalette-1,
+ NULL/*transparent color*/);
/* Reset gamma_table to prevent the image rows being changed */
for (npalette=0; npalette<256; ++npalette)
gamma_table[npalette] = (png_byte)npalette;
}
+ else if (tRNS)
+ {
+ png_color_16 col;
+
+ col.red = col.green = col.blue = col.gray =
+ 0x0101U & ((1U<<bit_depth)-1U);
+ col.index = 0U;
+ png_set_tRNS(png_ptr, info_ptr, NULL/*trans*/, 1U, &col);
+ }
+
if (gamma == PNG_DEFAULT_sRGB)
png_set_sRGB(png_ptr, info_ptr, PNG_sRGB_INTENT_ABSOLUTE);
png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE, filters);
{
- int passes = png_set_interlace_handling(png_ptr);
+# ifdef PNG_WRITE_INTERLACING_SUPPORTED
+ int passes = png_set_interlace_handling(png_ptr);
+# else /* !WRITE_INTERLACING */
+ int passes = 1;
+# endif /* !WRITE_INTERLACING */
int pass;
png_size_t rowbytes = png_get_rowbytes(png_ptr, info_ptr);
{
unsigned int y;
- for (y=0; y<size; ++y)
+ for (y=0; y<ysize; ++y)
{
- generate_row(row, rowbytes, y, color_type, bit_depth,
- gamma_table, conv, colors);
+ unsigned int row_filters =
+ generate_row(row, rowbytes, y, color_type, bit_depth,
+ gamma_table, conv, colors, small);
+
+ if (row_filters != 0 && filters == PNG_ALL_FILTERS)
+ png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE, row_filters);
+
png_write_row(png_ptr, row);
}
}
load_fake(png_charp param, png_bytepp profile)
{
char *endptr = NULL;
- unsigned long long int size = strtoull(param, &endptr, 0/*base*/);
+ uint64_t size = strtoull(param, &endptr, 0/*base*/);
/* The 'fake' format is <number>*[string] */
if (endptr != NULL && *endptr == '*')
}
static void
-insert_hIST(png_structp png_ptr, png_infop info_ptr, int nparams, png_charpp params)
+insert_hIST(png_structp png_ptr, png_infop info_ptr, int nparams,
+ png_charpp params)
{
int i;
png_uint_16 freq[256];
png_set_hIST(png_ptr, info_ptr, freq);
}
+static png_byte
+bval(png_const_structrp png_ptr, png_charp param, unsigned int maxval)
+{
+ char *endptr = NULL;
+ unsigned long int l = strtoul(param, &endptr, 0/*base*/);
+
+ if (param[0] && *endptr == 0 && l <= maxval)
+ return (png_byte)l;
+
+ else
+ png_error(png_ptr, "sBIT: invalid sBIT value");
+}
+
+static void
+insert_sBIT(png_structp png_ptr, png_infop info_ptr, int nparams,
+ png_charpp params)
+{
+ const int ct = png_get_color_type(png_ptr, info_ptr);
+ const int c = (ct & PNG_COLOR_MASK_COLOR ? 3 : 1) +
+ (ct & PNG_COLOR_MASK_ALPHA ? 1 : 0);
+ const unsigned int maxval =
+ ct & PNG_COLOR_MASK_PALETTE ? 8U : png_get_bit_depth(png_ptr, info_ptr);
+ png_color_8 sBIT;
+
+ if (nparams != c)
+ png_error(png_ptr, "sBIT: incorrect parameter count");
+
+ if (ct & PNG_COLOR_MASK_COLOR)
+ {
+ sBIT.red = bval(png_ptr, params[0], maxval);
+ sBIT.green = bval(png_ptr, params[1], maxval);
+ sBIT.blue = bval(png_ptr, params[2], maxval);
+ sBIT.gray = 42;
+ }
+
+ else
+ {
+ sBIT.red = sBIT.green = sBIT.blue = 42;
+ sBIT.gray = bval(png_ptr, params[0], maxval);
+ }
+
+ if (ct & PNG_COLOR_MASK_ALPHA)
+ sBIT.alpha = bval(png_ptr, params[nparams-1], maxval);
+
+ else
+ sBIT.alpha = 42;
+
+ png_set_sBIT(png_ptr, info_ptr, &sBIT);
+}
+
#if 0
static void
insert_sPLT(png_structp png_ptr, png_infop info_ptr, int nparams, png_charpp params)
return make_insert(what, insert_hIST, nparams, parameter_list);
break;
+ case CHUNK(115,66,73,84): /* sBIT */
+ if (nparams <= 4)
+ return make_insert(what, insert_sBIT, nparams, parameter_list);
+ break;
+
#if 0
case CHUNK(115,80,76,84): /* sPLT */
return make_insert(what, insert_sPLT, nparams, parameter_list);
return NULL;
}
+/* This is necessary because libpng expects writeable strings for things like
+ * text chunks (maybe this should be fixed...)
+ */
+static png_charp
+strstash(png_const_charp foo)
+{
+ /* The program indicates a memory allocation error by crashing, this is by
+ * design.
+ */
+ if (foo != NULL)
+ {
+ png_charp bar = malloc(strlen(foo)+1);
+ return strcpy(bar, foo);
+ }
+
+ return NULL;
+}
+
+static png_charp
+strstash_list(const png_const_charp *text)
+{
+ size_t foo = 0;
+ png_charp result, bar;
+ const png_const_charp *line = text;
+
+ while (*line != NULL)
+ foo += strlen(*line++);
+
+ result = bar = malloc(foo+1);
+
+ line = text;
+ while (*line != NULL)
+ {
+ foo = strlen(*line);
+ memcpy(bar, *line++, foo);
+ bar += foo;
+ }
+
+ *bar = 0;
+ return result;
+}
+
+/* These are used to insert Copyright and Licence fields, they allow the text to
+ * have \n unlike the --insert option.
+ */
+static chunk_insert *
+add_tEXt(const char *key, const png_const_charp *text)
+{
+ static char what[5] = { 116, 69, 88, 116, 0 };
+ png_charp parameter_list[3];
+
+ parameter_list[0] = strstash(key);
+ parameter_list[1] = strstash_list(text);
+ parameter_list[2] = NULL;
+
+ return make_insert(what, insert_tEXt, 2, parameter_list);
+}
+
+static chunk_insert *
+add_iTXt(const char *key, const char *language, const char *language_key,
+ const png_const_charp *text)
+{
+ static char what[5] = { 105, 84, 88, 116, 0 };
+ png_charp parameter_list[5];
+
+ parameter_list[0] = strstash(key);
+ parameter_list[1] = strstash(language);
+ parameter_list[2] = strstash(language_key);
+ parameter_list[3] = strstash_list(text);
+ parameter_list[4] = NULL;
+
+ return make_insert(what, insert_iTXt, 4, parameter_list);
+}
+
/* This is a not-very-good parser for a sequence of numbers (including 0). It
* doesn't accept some apparently valid things, but it accepts all the sensible
* combinations.
const char *file_name = NULL;
int color_type = 8; /* invalid */
int bit_depth = 32; /* invalid */
+ int small = 0; /* make full size images */
+ int tRNS = 0; /* don't output a tRNS chunk */
unsigned int colors[5];
unsigned int filters = PNG_ALL_FILTERS;
png_fixed_point gamma = 0; /* not set */
{
char *arg = *++argv;
+ if (strcmp(arg, "--small") == 0)
+ {
+ small = 1;
+ continue;
+ }
+
+ if (strcmp(arg, "--tRNS") == 0)
+ {
+ tRNS = 1;
+ continue;
+ }
+
if (strcmp(arg, "--sRGB") == 0)
{
gamma = PNG_DEFAULT_sRGB;
if (color_type == 8 || bit_depth == 32)
{
- fprintf(stderr, "usage: makepng [--sRGB|--linear|--1.8] "
+ fprintf(stderr, "usage: makepng [--small] [--sRGB|--linear|--1.8] "
"[--color=...] color-type bit-depth [file-name]\n"
- " Make a test PNG file, by default writes to stdout.\n");
+ " Make a test PNG file, by default writes to stdout.\n"
+ " Other options are available, UTSL.\n");
exit(1);
}
}
}
+ /* small and colors are incomparible (will probably crash if both are used at
+ * the same time!)
+ */
+ if (small && colors[0] != 0)
+ {
+ fprintf(stderr, "makepng: --color --small: only one at a time!\n");
+ exit(1);
+ }
+
/* Restrict the filters for more speed to those we know are used for the
* generated images.
*/
- if (filters == PNG_ALL_FILTERS)
+ if (filters == PNG_ALL_FILTERS && !small/*small provides defaults*/)
{
if ((color_type & PNG_COLOR_MASK_PALETTE) != 0 || bit_depth < 8)
filters = PNG_FILTER_NONE;
filters &= ~PNG_FILTER_NONE;
}
+ /* Insert standard copyright and licence text. */
+ {
+ static png_const_charp copyright[] =
+ {
+ COPYRIGHT, /* ISO-Latin-1 */
+ NULL
+ };
+ static png_const_charp licensing[] =
+ {
+ IMAGE_LICENSING, /* UTF-8 */
+ NULL
+ };
+
+ chunk_insert *new_insert;
+
+ new_insert = add_tEXt("Copyright", copyright);
+ if (new_insert != NULL)
+ {
+ *insert_ptr = new_insert;
+ insert_ptr = &new_insert->next;
+ }
+
+ new_insert = add_iTXt("Licensing", "en", NULL, licensing);
+ if (new_insert != NULL)
+ {
+ *insert_ptr = new_insert;
+ insert_ptr = &new_insert->next;
+ }
+ }
+
{
int ret = write_png(&file_name, fp, color_type, bit_depth, gamma,
- head_insert, filters, colors);
+ head_insert, filters, colors, small, tRNS);
if (ret != 0 && file_name != NULL)
remove(file_name);
/* pngimage.c
*
- * Copyright (c) 2014 John Cunningham Bowler
+ * Copyright (c) 2015 John Cunningham Bowler
*
- * Last changed in libpng 1.6.10 [March 6, 2014]
+ * Last changed in libpng 1.6.20 [December 3, 2015]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
# include <setjmp.h> /* because png.h did *not* include this */
#endif
-#if defined(PNG_INFO_IMAGE_SUPPORTED) && defined(PNG_SEQUENTIAL_READ_SUPPORTED)
+#if defined(PNG_INFO_IMAGE_SUPPORTED) && defined(PNG_SEQUENTIAL_READ_SUPPORTED)\
+ && (defined(PNG_READ_PNG_SUPPORTED) || PNG_LIBPNG_VER < 10700)
/* If a transform is valid on both read and write this implies that if the
* transform is applied to read it must also be applied on write to produce
* meaningful data. This is because these transforms when performed on read
*/
#endif
#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
- T(SCALE_16, NONE, X, X, 16, R)
+ T(SCALE_16, NONE, X, X, 16, R),
/* scales 16-bit components to 8-bits. */
#endif
+ { NULL /*name*/, 0, 0, 0, 0, 0, 0, 0/*!tested*/ }
+
#undef T
};
t &= -t; /* first set bit */
- for (i=0; i<TTABLE_SIZE; ++i)
+ for (i=0; i<TTABLE_SIZE; ++i) if (transform_info[i].name != NULL)
{
if ((transform_info[i].transform & t) != 0)
return transform_info[i].name;
{
unsigned int i;
- for (i=0; i<TTABLE_SIZE; ++i)
+ for (i=0; i<TTABLE_SIZE; ++i) if (transform_info[i].name != NULL)
{
if (transform_info[i].when & TRANSFORM_R)
read_transforms |= transform_info[i].transform;
* In both cases the file data is held in a linked list of buffers - not all
* of these are in use at any time.
*/
+#define NEW(type) ((type *)malloc(sizeof (type)))
+#define DELETE(ptr) (free(ptr))
+
struct buffer_list
{
struct buffer_list *next; /* next buffer in list */
buffer->current = NULL;
}
+static void
+buffer_destroy_list(struct buffer_list *list)
+{
+ if (list != NULL)
+ {
+ struct buffer_list *next = list->next;
+ DELETE(list);
+ buffer_destroy_list(next);
+ }
+}
+
+static void
+buffer_destroy(struct buffer *buffer)
+{
+ struct buffer_list *list = buffer->first.next;
+ buffer_init(buffer);
+ buffer_destroy_list(list);
+}
+
#ifdef PNG_WRITE_SUPPORTED
static void
buffer_start_write(struct buffer *buffer)
return (struct buffer*)png_get_io_ptr(pp);
}
-#define NEW(type) ((type *)malloc(sizeof (type)))
-
static struct buffer_list *
buffer_extend(struct buffer_list *current)
{
#define SKIP_BUGS 0x100 /* Skip over known bugs */
#define LOG_SKIPPED 0x200 /* Log skipped bugs */
#define FIND_BAD_COMBOS 0x400 /* Attempt to deduce bad combos */
+#define LIST_COMBOS 0x800 /* List combos by name */
/* Result masks apply to the result bits in the 'results' field below; these
* bits are simple 1U<<error_level. A pass requires either nothing worse than
dp->results = 0; /* reset for next time */
}
+static void
+display_destroy(struct display *dp)
+{
+ /* Release any memory held in the display. */
+# ifdef PNG_WRITE_SUPPORTED
+ buffer_destroy(&dp->written_file);
+# endif
+
+ buffer_destroy(&dp->original_file);
+}
+
static struct display *
get_dp(png_structp pp)
/* The display pointer is always stored in the png_struct error pointer */
int tr = dp->transforms;
if (is_combo(tr))
- fprintf(stderr, "(0x%x)", tr);
+ {
+ if (dp->options & LIST_COMBOS)
+ {
+ int trx = tr;
+
+ fprintf(stderr, "(");
+ if (trx)
+ {
+ int start = 0;
+
+ while (trx)
+ {
+ int trz = trx & -trx;
+
+ if (start) fprintf(stderr, "+");
+ fprintf(stderr, "%s", transform_name(trz));
+ start = 1;
+ trx &= ~trz;
+ }
+ }
+
+ else
+ fprintf(stderr, "-");
+ fprintf(stderr, ")");
+ }
+
+ else
+ fprintf(stderr, "(0x%x)", tr);
+ }
else
fprintf(stderr, "(%s)", transform_name(tr));
int bd = dp->bit_depth;
unsigned int i;
- for (i=0; i<TTABLE_SIZE; ++i)
+ for (i=0; i<TTABLE_SIZE; ++i) if (transform_info[i].name != NULL)
{
int transform = transform_info[i].transform;
if ((transform_info[i].valid_chunks == 0 ||
(transform_info[i].valid_chunks & chunks) != 0) &&
- (transform_info[i].color_mask_required & ct) ==
+ (transform_info[i].color_mask_required & ct) ==
transform_info[i].color_mask_required &&
(transform_info[i].color_mask_absent & ct) == 0 &&
(transform_info[i].bit_depths & bd) != 0 &&
dp->active_transforms = active;
dp->ignored_transforms = inactive; /* excluding write-only transforms */
-
- if (active == 0)
- display_log(dp, INTERNAL_ERROR, "bad transform table");
}
}
{
unsigned long chunks =
png_get_valid(dp->read_pp, dp->read_ip, 0xffffffff);
-
+
if (chunks != dp->chunks)
display_log(dp, APP_FAIL, "PNG chunks changed from 0x%lx to 0x%lx",
(unsigned long)dp->chunks, chunks);
{
int b;
- case 16: /* Two bytes per component, bit-endian */
- for (b = (bpp >> 4); b > 0; )
+ case 16: /* Two bytes per component, big-endian */
+ for (b = (bpp >> 4); b > 0; --b)
{
unsigned int sig = (unsigned int)(0xffff0000 >> sig_bits[b]);
else if (strcmp(name, "--nofind-bad-combos") == 0)
d.options &= ~FIND_BAD_COMBOS;
+ else if (strcmp(name, "--list-combos") == 0)
+ d.options |= LIST_COMBOS;
+
+ else if (strcmp(name, "--nolist-combos") == 0)
+ d.options &= ~LIST_COMBOS;
+
else if (name[0] == '-' && name[1] == '-')
{
fprintf(stderr, "pngimage: %s: unknown option\n", name);
display_clean(&d);
}
+ /* Release allocated memory */
+ display_destroy(&d);
+
return errors != 0;
}
}
-#else /* !PNG_INFO_IMAGE_SUPPORTED || !PNG_READ_SUPPORTED */
+#else /* !INFO_IMAGE || !SEQUENTIAL_READ || !READ_PNG*/
int
main(void)
{
--- /dev/null
+/* contrib/libtests/pngstest-errors.h
+ *
+ * BUILT USING: libpng version 1.6.19beta03 - September 25, 2015
+ *
+ * This code is released under the libpng license.
+ * For conditions of distribution and use, see the disclaimer
+ * and license in png.h
+ *
+ * THIS IS A MACHINE GENERATED FILE: do not edit it directly!
+ * Instead run:
+ *
+ * pngstest --accumulate
+ *
+ * on as many PNG files as possible; at least PNGSuite and
+ * contrib/libtests/testpngs.
+ */
+static png_uint_16 gpc_error[16/*in*/][16/*out*/][4/*a*/] =
+{
+ { /* input: sRGB-gray */
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 372, 0 }, { 0, 0, 372, 0 }, { 0, 0, 372, 0 }, { 0, 0, 372, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: sRGB-gray+alpha */
+ { 0, 19, 0, 0 }, { 0, 0, 0, 0 }, { 0, 20, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 897, 788, 0 }, { 0, 897, 788, 0 }, { 0, 897, 788, 0 }, { 0, 897, 788, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: sRGB-rgb */
+ { 0, 0, 19, 0 }, { 0, 0, 19, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 893, 0 }, { 0, 0, 893, 0 }, { 0, 0, 811, 0 }, { 0, 0, 811, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: sRGB-rgb+alpha */
+ { 0, 16, 17, 0 }, { 0, 17, 17, 0 }, { 0, 19, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 850, 875, 0 }, { 0, 850, 875, 0 }, { 0, 897, 788, 0 }, { 0, 897, 788, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: linear-gray */
+ { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: linear-gray+alpha */
+ { 0, 74, 9, 0 }, { 0, 20, 9, 0 }, { 0, 74, 9, 0 }, { 0, 20, 9, 0 },
+ { 0, 0, 0, 0 }, { 0, 1, 0, 0 }, { 0, 0, 0, 0 }, { 0, 1, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: linear-rgb */
+ { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 },
+ { 0, 0, 4, 0 }, { 0, 0, 4, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: linear-rgb+alpha */
+ { 0, 126, 143, 0 }, { 0, 11, 7, 0 }, { 0, 74, 9, 0 }, { 0, 17, 9, 0 },
+ { 0, 4, 4, 0 }, { 0, 5, 4, 0 }, { 0, 0, 0, 0 }, { 0, 1, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: color-mapped-sRGB-gray */
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: color-mapped-sRGB-gray+alpha */
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: color-mapped-sRGB-rgb */
+ { 0, 0, 13, 0 }, { 0, 0, 13, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 },
+ { 0, 0, 673, 0 }, { 0, 0, 673, 0 }, { 0, 0, 674, 0 }, { 0, 0, 674, 0 },
+ { 0, 0, 1, 0 }, { 0, 0, 1, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 460, 0 }, { 0, 0, 460, 0 }, { 0, 0, 263, 0 }, { 0, 0, 263, 0 }
+ }, { /* input: color-mapped-sRGB-rgb+alpha */
+ { 0, 6, 8, 0 }, { 0, 7, 8, 0 }, { 0, 75, 9, 0 }, { 0, 9, 9, 0 },
+ { 0, 585, 427, 0 }, { 0, 585, 427, 0 }, { 0, 717, 514, 0 }, { 0, 717, 514, 0 },
+ { 0, 1, 1, 0 }, { 0, 1, 1, 0 }, { 0, 1, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 13323, 460, 0 }, { 0, 427, 460, 0 }, { 0, 16480, 263, 0 }, { 0, 243, 263, 0 }
+ }, { /* input: color-mapped-linear-gray */
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 282, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: color-mapped-linear-gray+alpha */
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 253, 282, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: color-mapped-linear-rgb */
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 265, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: color-mapped-linear-rgb+alpha */
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 243, 265, 0 }
+ }
+};
+static png_uint_16 gpc_error_via_linear[16][4/*out*/][4] =
+{
+ { /* input: sRGB-gray */
+ { 0, 0, 7, 0 }, { 0, 0, 7, 0 }, { 0, 0, 7, 0 }, { 0, 0, 7, 0 }
+ }, { /* input: sRGB-gray+alpha */
+ { 0, 15, 15, 0 }, { 0, 186, 15, 0 }, { 0, 15, 15, 0 }, { 0, 186, 15, 0 }
+ }, { /* input: sRGB-rgb */
+ { 0, 0, 20, 0 }, { 0, 0, 20, 0 }, { 0, 0, 15, 0 }, { 0, 0, 15, 0 }
+ }, { /* input: sRGB-rgb+alpha */
+ { 0, 16, 17, 0 }, { 0, 187, 17, 0 }, { 0, 15, 15, 0 }, { 0, 186, 15, 0 }
+ }, { /* input: linear-gray */
+ { 0, 0, 1, 0 }, { 0, 0, 1, 0 }, { 0, 0, 1, 0 }, { 0, 0, 1, 0 }
+ }, { /* input: linear-gray+alpha */
+ { 0, 1, 1, 0 }, { 0, 1, 1, 0 }, { 0, 1, 1, 0 }, { 0, 1, 1, 0 }
+ }, { /* input: linear-rgb */
+ { 0, 0, 1, 0 }, { 0, 0, 1, 0 }, { 0, 0, 1, 0 }, { 0, 0, 1, 0 }
+ }, { /* input: linear-rgb+alpha */
+ { 0, 1, 1, 0 }, { 0, 9, 1, 0 }, { 0, 1, 1, 0 }, { 0, 1, 1, 0 }
+ }, { /* input: color-mapped-sRGB-gray */
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: color-mapped-sRGB-gray+alpha */
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: color-mapped-sRGB-rgb */
+ { 0, 0, 13, 0 }, { 0, 0, 13, 0 }, { 0, 0, 14, 0 }, { 0, 0, 14, 0 }
+ }, { /* input: color-mapped-sRGB-rgb+alpha */
+ { 0, 4, 8, 0 }, { 0, 9, 8, 0 }, { 0, 9, 5, 0 }, { 0, 32, 5, 0 }
+ }, { /* input: color-mapped-linear-gray */
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: color-mapped-linear-gray+alpha */
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: color-mapped-linear-rgb */
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }, { /* input: color-mapped-linear-rgb+alpha */
+ { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
+ }
+};
+static png_uint_16 gpc_error_to_colormap[8/*i*/][8/*o*/][4] =
+{
+ { /* input: sRGB-gray */
+ { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 },
+ { 0, 0, 560, 0 }, { 0, 0, 560, 0 }, { 0, 0, 560, 0 }, { 0, 0, 560, 0 }
+ }, { /* input: sRGB-gray+alpha */
+ { 0, 19, 9, 0 }, { 0, 255, 9, 25 }, { 0, 88, 9, 0 }, { 0, 255, 9, 25 },
+ { 0, 1012, 928, 0 }, { 0, 16026, 928, 6425 }, { 0, 1012, 928, 0 }, { 0, 16026, 928, 6425 }
+ }, { /* input: sRGB-rgb */
+ { 0, 0, 19, 0 }, { 0, 0, 19, 0 }, { 0, 0, 25, 0 }, { 0, 0, 25, 0 },
+ { 0, 0, 962, 0 }, { 0, 0, 962, 0 }, { 0, 0, 13677, 0 }, { 0, 0, 13677, 0 }
+ }, { /* input: sRGB-rgb+alpha */
+ { 0, 63, 77, 0 }, { 0, 255, 19, 25 }, { 0, 225, 25, 0 }, { 0, 255, 25, 67 },
+ { 0, 17534, 18491, 0 }, { 0, 15736, 2824, 6425 }, { 0, 14019, 13677, 0 }, { 0, 50115, 13677, 17219 }
+ }, { /* input: linear-gray */
+ { 0, 0, 73, 0 }, { 0, 0, 73, 0 }, { 0, 0, 73, 0 }, { 0, 0, 73, 0 },
+ { 0, 0, 18817, 0 }, { 0, 0, 18817, 0 }, { 0, 0, 18817, 0 }, { 0, 0, 18817, 0 }
+ }, { /* input: linear-gray+alpha */
+ { 0, 74, 74, 0 }, { 0, 255, 74, 25 }, { 0, 99, 74, 0 }, { 0, 255, 74, 25 },
+ { 0, 18919, 18907, 0 }, { 0, 24549, 18907, 6553 }, { 0, 18919, 18907, 0 }, { 0, 24549, 18907, 6553 }
+ }, { /* input: linear-rgb */
+ { 0, 0, 73, 0 }, { 0, 0, 73, 0 }, { 0, 0, 98, 0 }, { 0, 0, 98, 0 },
+ { 0, 0, 18664, 0 }, { 0, 0, 18664, 0 }, { 0, 0, 24998, 0 }, { 0, 0, 24998, 0 }
+ }, { /* input: linear-rgb+alpha */
+ { 0, 181, 196, 0 }, { 0, 255, 61, 25 }, { 206, 187, 98, 0 }, { 0, 255, 98, 67 },
+ { 0, 18141, 18137, 0 }, { 0, 17494, 17504, 6553 }, { 0, 24979, 24992, 0 }, { 0, 49172, 24992, 17347 }
+ }
+};
+/* END MACHINE GENERATED */
/*-
* pngstest.c
*
- * Copyright (c) 2013 John Cunningham Bowler
+ * Copyright (c) 2013-2015 John Cunningham Bowler
*
- * Last changed in libpng 1.6.8 [December 19, 2013]
+ * Last changed in libpng 1.6.19 [November 12, 2015]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
if (image->tmpfile_name[0] != 0 && (image->opts & KEEP_TMPFILES) == 0)
{
- remove(image->tmpfile_name);
+ (void)remove(image->tmpfile_name);
image->tmpfile_name[0] = 0;
}
}
* gpc_error_to_colormap.
*/
#if PNG_FORMAT_FLAG_COLORMAP == 8 /* extra check also required */
-/* START MACHINE GENERATED */
-static png_uint_16 gpc_error[16/*in*/][16/*out*/][4/*a*/] =
-{
- { /* input: sRGB-gray */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 372, 0 }, { 0, 0, 372, 0 }, { 0, 0, 372, 0 }, { 0, 0, 372, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: sRGB-gray+alpha */
- { 0, 18, 0, 0 }, { 0, 0, 0, 0 }, { 0, 20, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 897, 788, 0 }, { 0, 897, 788, 0 }, { 0, 897, 788, 0 }, { 0, 897, 788, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: sRGB-rgb */
- { 0, 0, 19, 0 }, { 0, 0, 19, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 893, 0 }, { 0, 0, 893, 0 }, { 0, 0, 811, 0 }, { 0, 0, 811, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: sRGB-rgb+alpha */
- { 0, 4, 13, 0 }, { 0, 14, 13, 0 }, { 0, 19, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 832, 764, 0 }, { 0, 832, 764, 0 }, { 0, 897, 788, 0 }, { 0, 897, 788, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: linear-gray */
- { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: linear-gray+alpha */
- { 0, 74, 9, 0 }, { 0, 20, 9, 0 }, { 0, 74, 9, 0 }, { 0, 20, 9, 0 },
- { 0, 0, 0, 0 }, { 0, 1, 0, 0 }, { 0, 0, 0, 0 }, { 0, 1, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: linear-rgb */
- { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 },
- { 0, 0, 4, 0 }, { 0, 0, 4, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: linear-rgb+alpha */
- { 0, 126, 143, 0 }, { 0, 9, 7, 0 }, { 0, 74, 9, 0 }, { 0, 16, 9, 0 },
- { 0, 4, 4, 0 }, { 0, 5, 4, 0 }, { 0, 0, 0, 0 }, { 0, 1, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-sRGB-gray */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-sRGB-gray+alpha */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-sRGB-rgb */
- { 0, 0, 13, 0 }, { 0, 0, 13, 0 }, { 0, 0, 8, 0 }, { 0, 0, 8, 0 },
- { 0, 0, 673, 0 }, { 0, 0, 673, 0 }, { 0, 0, 674, 0 }, { 0, 0, 674, 0 },
- { 0, 0, 1, 0 }, { 0, 0, 1, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 460, 0 }, { 0, 0, 460, 0 }, { 0, 0, 263, 0 }, { 0, 0, 263, 0 }
- }, { /* input: color-mapped-sRGB-rgb+alpha */
- { 0, 6, 8, 0 }, { 0, 7, 8, 0 }, { 0, 75, 8, 0 }, { 0, 9, 8, 0 },
- { 0, 585, 427, 0 }, { 0, 585, 427, 0 }, { 0, 717, 409, 0 }, { 0, 717, 409, 0 },
- { 0, 1, 1, 0 }, { 0, 1, 1, 0 }, { 0, 1, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 13323, 460, 0 }, { 0, 334, 460, 0 }, { 0, 16480, 263, 0 }, { 0, 243, 263, 0 }
- }, { /* input: color-mapped-linear-gray */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 282, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-linear-gray+alpha */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 253, 282, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-linear-rgb */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 265, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-linear-rgb+alpha */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 },
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 243, 265, 0 }
- }
-};
-static png_uint_16 gpc_error_via_linear[16][4/*out*/][4] =
-{
- { /* input: sRGB-gray */
- { 0, 0, 7, 0 }, { 0, 0, 7, 0 }, { 0, 0, 7, 0 }, { 0, 0, 7, 0 }
- }, { /* input: sRGB-gray+alpha */
- { 0, 15, 15, 0 }, { 0, 186, 15, 0 }, { 0, 15, 15, 0 }, { 0, 186, 15, 0 }
- }, { /* input: sRGB-rgb */
- { 0, 0, 19, 0 }, { 0, 0, 19, 0 }, { 0, 0, 15, 0 }, { 0, 0, 15, 0 }
- }, { /* input: sRGB-rgb+alpha */
- { 0, 12, 14, 0 }, { 0, 180, 14, 0 }, { 0, 14, 15, 0 }, { 0, 186, 15, 0 }
- }, { /* input: linear-gray */
- { 0, 0, 1, 0 }, { 0, 0, 1, 0 }, { 0, 0, 1, 0 }, { 0, 0, 1, 0 }
- }, { /* input: linear-gray+alpha */
- { 0, 1, 1, 0 }, { 0, 1, 1, 0 }, { 0, 1, 1, 0 }, { 0, 1, 1, 0 }
- }, { /* input: linear-rgb */
- { 0, 0, 1, 0 }, { 0, 0, 1, 0 }, { 0, 0, 1, 0 }, { 0, 0, 1, 0 }
- }, { /* input: linear-rgb+alpha */
- { 0, 1, 1, 0 }, { 0, 8, 1, 0 }, { 0, 1, 1, 0 }, { 0, 1, 1, 0 }
- }, { /* input: color-mapped-sRGB-gray */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-sRGB-gray+alpha */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-sRGB-rgb */
- { 0, 0, 13, 0 }, { 0, 0, 13, 0 }, { 0, 0, 14, 0 }, { 0, 0, 14, 0 }
- }, { /* input: color-mapped-sRGB-rgb+alpha */
- { 0, 4, 8, 0 }, { 0, 9, 8, 0 }, { 0, 8, 3, 0 }, { 0, 32, 3, 0 }
- }, { /* input: color-mapped-linear-gray */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-linear-gray+alpha */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-linear-rgb */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }, { /* input: color-mapped-linear-rgb+alpha */
- { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }, { 0, 0, 0, 0 }
- }
-};
-static png_uint_16 gpc_error_to_colormap[8/*i*/][8/*o*/][4] =
-{
- { /* input: sRGB-gray */
- { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 }, { 0, 0, 9, 0 },
- { 0, 0, 560, 0 }, { 0, 0, 560, 0 }, { 0, 0, 560, 0 }, { 0, 0, 560, 0 }
- }, { /* input: sRGB-gray+alpha */
- { 0, 19, 2, 0 }, { 0, 255, 2, 25 }, { 0, 88, 2, 0 }, { 0, 255, 2, 25 },
- { 0, 1012, 745, 0 }, { 0, 16026, 745, 6425 }, { 0, 1012, 745, 0 }, { 0, 16026, 745, 6425 }
- }, { /* input: sRGB-rgb */
- { 0, 0, 19, 0 }, { 0, 0, 19, 0 }, { 0, 0, 25, 0 }, { 0, 0, 25, 0 },
- { 0, 0, 937, 0 }, { 0, 0, 937, 0 }, { 0, 0, 13677, 0 }, { 0, 0, 13677, 0 }
- }, { /* input: sRGB-rgb+alpha */
- { 0, 63, 77, 0 }, { 0, 255, 19, 25 }, { 0, 220, 25, 0 }, { 0, 255, 25, 67 },
- { 0, 17534, 18491, 0 }, { 0, 15614, 2824, 6425 }, { 0, 14019, 13677, 0 }, { 0, 48573, 13677, 17219 }
- }, { /* input: linear-gray */
- { 0, 0, 73, 0 }, { 0, 0, 73, 0 }, { 0, 0, 73, 0 }, { 0, 0, 73, 0 },
- { 0, 0, 18817, 0 }, { 0, 0, 18817, 0 }, { 0, 0, 18817, 0 }, { 0, 0, 18817, 0 }
- }, { /* input: linear-gray+alpha */
- { 0, 74, 74, 0 }, { 0, 255, 74, 25 }, { 0, 97, 74, 0 }, { 0, 255, 74, 25 },
- { 0, 18919, 18907, 0 }, { 0, 24549, 18907, 6552 }, { 0, 18919, 18907, 0 }, { 0, 24549, 18907, 6552 }
- }, { /* input: linear-rgb */
- { 0, 0, 73, 0 }, { 0, 0, 73, 0 }, { 0, 0, 98, 0 }, { 0, 0, 98, 0 },
- { 0, 0, 18664, 0 }, { 0, 0, 18664, 0 }, { 0, 0, 24998, 0 }, { 0, 0, 24998, 0 }
- }, { /* input: linear-rgb+alpha */
- { 0, 181, 196, 0 }, { 0, 255, 61, 25 }, { 206, 187, 98, 0 }, { 0, 255, 98, 67 },
- { 0, 18141, 18137, 0 }, { 0, 17494, 17504, 6553 }, { 0, 24979, 24992, 0 }, { 0, 46509, 24992, 17347 }
- }
-};
-/* END MACHINE GENERATED */
+# include "pngstest-errors.h" /* machine generated */
#endif /* COLORMAP flag check */
#endif /* flag checks */
int in_opaque; /* Value of input alpha that is opaque */
int is_palette; /* Sample values come from the palette */
int accumulate; /* Accumlate component errors (don't log) */
- int output_8bit; /* Output is 8 bit (else 16 bit) */
+ int output_8bit; /* Output is 8-bit (else 16-bit) */
void (*in_gp)(Pixel*, png_const_voidp);
void (*out_gp)(Pixel*, png_const_voidp);
else if (y >= b->image.colormap_entries)
{
- if ((a->opts & ACCUMULATE) == 0)
+ if ((b->opts & ACCUMULATE) == 0)
{
char pindex[9];
sprintf(pindex, "%lu[%lu]", (unsigned long)y,
{
long int cb = ftell(f);
- if (cb > 0 && (unsigned long int)cb < (size_t)~(size_t)0)
+ if (cb > 0)
{
- png_bytep b = voidcast(png_bytep, malloc((size_t)cb));
-
- if (b != NULL)
+#ifndef __COVERITY__
+ if ((unsigned long int)cb <= (size_t)~(size_t)0)
+#endif
{
- rewind(f);
+ png_bytep b = voidcast(png_bytep, malloc((size_t)cb));
- if (fread(b, (size_t)cb, 1, f) == 1)
+ if (b != NULL)
{
- fclose(f);
- image->input_memory_size = cb;
- image->input_memory = b;
+ rewind(f);
+
+ if (fread(b, (size_t)cb, 1, f) == 1)
+ {
+ fclose(f);
+ image->input_memory_size = cb;
+ image->input_memory = b;
+ }
+
+ else
+ {
+ free(b);
+ return logclose(image, f, image->file_name,
+ ": read failed: ");
+ }
}
else
- {
- free(b);
return logclose(image, f, image->file_name,
- ": read failed: ");
- }
+ ": out of memory: ");
}
else
return logclose(image, f, image->file_name,
- ": out of memory: ");
+ ": file too big for this architecture: ");
+ /* cb is the length of the file as a (long) and
+ * this is greater than the maximum amount of
+ * memory that can be requested from malloc.
+ */
}
else if (cb == 0)
if (image->opts & USE_STDIO)
{
+#ifndef PNG_USE_MKSTEMP
FILE *f = tmpfile();
+#else
+ /* Experimental. Coverity says tmpfile() is insecure because it
+ * generates predictable names.
+ *
+ * It is possible to satisfy Coverity by using mkstemp(); however,
+ * any platform supporting mkstemp() undoubtedly has a secure tmpfile()
+ * implementation as well, and doesn't need the fix. Note that
+ * the fix won't work on platforms that don't support mkstemp().
+ *
+ * https://www.securecoding.cert.org/confluence/display/c/
+ * FIO21-C.+Do+not+create+temporary+files+in+shared+directories
+ * says that most historic implementations of tmpfile() provide
+ * only a limited number of possible temporary file names
+ * (usually 26) before file names are recycled. That article also
+ * provides a secure solution that unfortunately depends upon mkstemp().
+ */
+ char tmpfile[] = "pngstest-XXXXXX";
+ int filedes;
+ FILE *f;
+ umask(0177);
+ filedes = mkstemp(tmpfile);
+ if (filedes < 0)
+ f = NULL;
+ else
+ {
+ f = fdopen(filedes,"w+");
+ /* Hide the filename immediately and ensure that the file does
+ * not exist after the program ends
+ */
+ (void) unlink(tmpfile);
+ }
+#endif
if (f != NULL)
{
}
/* Safe: checked above */
- strcpy(tmpf, argv[c]);
+ strncpy(tmpf, argv[c], sizeof (tmpf)-1);
}
else
{
unsigned int in;
+ printf("/* contrib/libtests/pngstest-errors.h\n");
+ printf(" *\n");
+ printf(" * BUILT USING:" PNG_HEADER_VERSION_STRING);
+ printf(" *\n");
+ printf(" * This code is released under the libpng license.\n");
+ printf(" * For conditions of distribution and use, see the disclaimer\n");
+ printf(" * and license in png.h\n");
+ printf(" *\n");
+ printf(" * THIS IS A MACHINE GENERATED FILE: do not edit it directly!\n");
+ printf(" * Instead run:\n");
+ printf(" *\n");
+ printf(" * pngstest --accumulate\n");
+ printf(" *\n");
+ printf(" * on as many PNG files as possible; at least PNGSuite and\n");
+ printf(" * contrib/libtests/testpngs.\n");
+ printf(" */\n");
+
printf("static png_uint_16 gpc_error[16/*in*/][16/*out*/][4/*a*/] =\n");
printf("{\n");
for (in=0; in<16; ++in)
putchar('\n');
}
printf("};\n");
+ printf("/* END MACHINE GENERATED */\n");
}
if (retval == 0 && touch != NULL)
return PNG_CHUNK_ANCILLARY(PNG_U32(name[0], name[1], name[2], name[3]));
}
-#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
+#ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
static int
ancillaryb(const png_byte *name)
{
/* However if there is no support to store unknown chunks don't ask libpng to
* do it; there will be an png_error.
*/
-# ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
+# ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
return discard;
# else
return 1; /*handled; discard*/
}
#endif /* READ_USER_CHUNKS_SUPPORTED */
-#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
+#ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
static png_uint_32
get_unknown(display *d, png_infop info_ptr, int after_IDAT)
{
* in this case, so we just check the arguments! This could
* be improved in the future by using the read callback.
*/
- png_byte name[5];
-
- memcpy(name, chunk_info[chunk].name, 5);
- png_set_keep_unknown_chunks(d->png_ptr, option, name, 1);
- chunk_info[chunk].keep = option;
+# if PNG_LIBPNG_VER >= 10700 &&\
+ !defined(PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED)
+ if (option < PNG_HANDLE_CHUNK_IF_SAFE)
+# endif /* 1.7+ SAVE_UNKNOWN_CHUNKS */
+ {
+ png_byte name[5];
+
+ memcpy(name, chunk_info[chunk].name, 5);
+ png_set_keep_unknown_chunks(d->png_ptr, option, name, 1);
+ chunk_info[chunk].keep = option;
+ }
continue;
}
case 7: /* default */
if (memcmp(argv[i], "default", 7) == 0)
{
- png_set_keep_unknown_chunks(d->png_ptr, option, NULL, 0);
+# if PNG_LIBPNG_VER >= 10700 &&\
+ !defined(PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED)
+ if (option < PNG_HANDLE_CHUNK_IF_SAFE)
+# endif /* 1.7+ SAVE_UNKNOWN_CHUNKS */
+ png_set_keep_unknown_chunks(d->png_ptr, option, NULL, 0);
+
d->keep = option;
continue;
}
case 3: /* all */
if (memcmp(argv[i], "all", 3) == 0)
{
- png_set_keep_unknown_chunks(d->png_ptr, option, NULL, -1);
+# if PNG_LIBPNG_VER >= 10700 &&\
+ !defined(PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED)
+ if (option < PNG_HANDLE_CHUNK_IF_SAFE)
+# endif /* 1.7+ SAVE_UNKNOWN_CHUNKS */
+ png_set_keep_unknown_chunks(d->png_ptr, option, NULL, -1);
+
d->keep = option;
for (chunk = 0; chunk < NINFO; ++chunk)
/* pngvalid.c - validate libpng by constructing then reading png files.
*
- * Last changed in libpng 1.6.10 [March 6, 2014]
- * Copyright (c) 2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.21 [January 15, 2016]
+ * Copyright (c) 2014-2016 Glenn Randers-Pehrson
* Written by John Cunningham Bowler
*
* This code is released under the libpng license.
# include <fenv.h>
#endif
+#ifndef FE_DIVBYZERO
+# define FE_DIVBYZERO 0
+#endif
+#ifndef FE_INVALID
+# define FE_INVALID 0
+#endif
+#ifndef FE_OVERFLOW
+# define FE_OVERFLOW 0
+#endif
+
/* Define the following to use this test against your installed libpng, rather
* than the one being built here:
*/
(defined(PNG_FIXED_POINT_SUPPORTED) || defined(PNG_FLOATING_POINT_SUPPORTED))
#if PNG_LIBPNG_VER < 10500
-/* This deliberately lacks the PNG_CONST. */
+/* This deliberately lacks the const. */
typedef png_byte *png_const_bytep;
/* This is copied from 1.5.1 png.h: */
# define png_const_structp png_structp
#endif
+#ifndef RELEASE_BUILD
+ /* RELEASE_BUILD is true for releases and release candidates: */
+# define RELEASE_BUILD (PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC)
+#endif
+#if RELEASE_BUILD
+# define debugonly(something)
+#else /* !RELEASE_BUILD */
+# define debugonly(something) something
+#endif /* !RELEASE_BUILD */
+
#include <float.h> /* For floating point constants */
#include <stdlib.h> /* For malloc */
#include <string.h> /* For memcpy, memset */
&(ps)->exception_context
#define context(ps,fault) anon_context(ps); png_store *fault
+/* This macro returns the number of elements in an array as an (unsigned int),
+ * it is necessary to avoid the inability of certain versions of GCC to use
+ * the value of a compile-time constant when performing range checks. It must
+ * be passed an array name.
+ */
+#define ARRAY_SIZE(a) ((unsigned int)((sizeof (a))/(sizeof (a)[0])))
+
+/* GCC BUG 66447 (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66447) requires
+ * some broken GCC versions to be fixed up to avoid invalid whining about auto
+ * variables that are *not* changed within the scope of a setjmp being changed.
+ *
+ * Feel free to extend the list of broken versions.
+ */
+#define is_gnu(major,minor)\
+ (defined __GNUC__) && __GNUC__ == (major) && __GNUC_MINOR__ == (minor)
+#define is_gnu_patch(major,minor,patch)\
+ is_gnu(major,minor) && __GNUC_PATCHLEVEL__ == 0
+/* For the moment just do it always; all versions of GCC seem to be broken: */
+#ifdef __GNUC__
+ const void * volatile make_volatile_for_gnu;
+# define gnu_volatile(x) make_volatile_for_gnu = &x;
+#else /* !GNUC broken versions */
+# define gnu_volatile(x)
+#endif /* !GNUC broken versions */
+
/******************************* UTILITIES ************************************/
/* Error handling is particularly problematic in production code - error
* handlers often themselves have bugs which lead to programs that detect
* warning messages into buffers that are too small.
*/
static size_t safecat(char *buffer, size_t bufsize, size_t pos,
- PNG_CONST char *cat)
+ const char *cat)
{
while (pos < bufsize && cat != NULL && *cat != 0)
buffer[pos++] = *cat++;
}
#endif
-static PNG_CONST char invalid[] = "invalid";
-static PNG_CONST char sep[] = ": ";
+static const char invalid[] = "invalid";
+static const char sep[] = ": ";
-static PNG_CONST char *colour_types[8] =
+static const char *colour_types[8] =
{
"grayscale", invalid, "truecolour", "indexed-colour",
"grayscale with alpha", invalid, "truecolour with alpha", invalid
};
-#ifdef PNG_READ_SUPPORTED
+#ifdef PNG_READ_TRANSFORMS_SUPPORTED
/* Convert a double precision value to fixed point. */
static png_fixed_point
fix(double d)
make_random_bytes(seed, bytes, 4);
}
-#ifdef PNG_READ_SUPPORTED
+#if defined PNG_READ_SUPPORTED || defined PNG_WRITE_tRNS_SUPPORTED ||\
+ defined PNG_WRITE_FILTER_SUPPORTED
static void
randomize(void *pv, size_t size)
{
make_random_bytes(random_seed, pv, size);
}
-#define RANDOMIZE(this) randomize(&(this), sizeof (this))
+#define R8(this) randomize(&(this), sizeof (this))
+
+static void r16(png_uint_16p p16, size_t count)
+{
+ size_t i;
+
+ for (i=0; i<count; ++i)
+ {
+ unsigned char b2[2];
+ randomize(b2, sizeof b2);
+ *p16++ = png_get_uint_16(b2);
+ }
+}
+
+#ifdef __COVERITY__
+# define R16(this)\
+ r16(&(this), (sizeof (this))/2U/*(sizeof (png_uint_16))*/)
+#else
+# define R16(this)\
+ r16(&(this), (sizeof (this))/(sizeof (png_uint_16)))
+#endif
+
+#if defined PNG_READ_RGB_TO_GRAY_SUPPORTED ||\
+ defined PNG_READ_FILLER_SUPPORTED
+static void r32(png_uint_32p p32, size_t count)
+{
+ size_t i;
+
+ for (i=0; i<count; ++i)
+ {
+ unsigned char b4[4];
+ randomize(b4, sizeof b4);
+ *p32++ = png_get_uint_32(b4);
+ }
+}
+
+#ifdef __COVERITY__
+# define R32(this)\
+ r32(&(this), (sizeof (this))/4U/*(sizeof (png_uint_32))*/)
+#else
+# define R32(this)\
+ r32(&(this), (sizeof (this))/(sizeof (png_uint_32)))
+#endif
+
+#endif /* READ_FILLER || READ_RGB_TO_GRAY */
+
+#endif /* READ || WRITE_tRNS || WRITE_FILTER */
+#if defined PNG_READ_TRANSFORMS_SUPPORTED ||\
+ defined PNG_WRITE_FILTER_SUPPORTED
static unsigned int
random_mod(unsigned int max)
{
- unsigned int x;
+ png_uint_16 x;
- RANDOMIZE(x);
+ R16(x);
return x % max; /* 0 .. max-1 */
}
+#endif /* READ_TRANSFORMS || WRITE_FILTER */
-#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
+#if (defined PNG_READ_RGB_TO_GRAY_SUPPORTED) ||\
+ (defined PNG_READ_FILLER_SUPPORTED)
static int
random_choice(void)
{
unsigned char x;
- RANDOMIZE(x);
+ R8(x);
return x & 1;
}
-#endif
-#endif /* PNG_READ_SUPPORTED */
+#endif /* READ_RGB_TO_GRAY || READ_FILLER */
/* A numeric ID based on PNG file characteristics. The 'do_interlace' field
* simply records whether pngvalid did the interlace itself or whether it
* was done by libpng. Width and height must be less than 256. 'palette' is an
- * index of the palette to use for formats with a palette (0 otherwise.)
+ * index of the palette to use for formats with a palette otherwise a boolean
+ * indicating if a tRNS chunk was generated.
*/
#define FILEID(col, depth, palette, interlace, width, height, do_interlace) \
((png_uint_32)((col) + ((depth)<<3) + ((palette)<<8) + ((interlace)<<13) + \
#define COL_FROM_ID(id) ((png_byte)((id)& 0x7U))
#define DEPTH_FROM_ID(id) ((png_byte)(((id) >> 3) & 0x1fU))
#define PALETTE_FROM_ID(id) (((id) >> 8) & 0x1f)
-#define INTERLACE_FROM_ID(id) ((int)(((id) >> 13) & 0x3))
+#define INTERLACE_FROM_ID(id) ((png_byte)(((id) >> 13) & 0x3))
#define DO_INTERLACE_FROM_ID(id) ((int)(((id)>>15) & 1))
#define WIDTH_FROM_ID(id) (((id)>>16) & 0xff)
#define HEIGHT_FROM_ID(id) (((id)>>24) & 0xff)
png_uint_32 w, png_uint_32 h, int do_interlace)
{
pos = safecat(buffer, bufsize, pos, colour_types[colour_type]);
- if (npalette > 0)
+ if (colour_type == 3) /* must have a palette */
{
pos = safecat(buffer, bufsize, pos, "[");
pos = safecatn(buffer, bufsize, pos, npalette);
pos = safecat(buffer, bufsize, pos, "]");
}
+
+ else if (npalette != 0)
+ pos = safecat(buffer, bufsize, pos, "+tRNS");
+
pos = safecat(buffer, bufsize, pos, " ");
pos = safecatn(buffer, bufsize, pos, bit_depth);
pos = safecat(buffer, bufsize, pos, " bit");
static int
next_format(png_bytep colour_type, png_bytep bit_depth,
- unsigned int* palette_number, int no_low_depth_gray)
+ unsigned int* palette_number, int low_depth_gray, int tRNS)
{
if (*bit_depth == 0)
{
*colour_type = 0;
- if (no_low_depth_gray)
- *bit_depth = 8;
- else
+ if (low_depth_gray)
*bit_depth = 1;
+ else
+ *bit_depth = 8;
*palette_number = 0;
return 1;
}
- if (*colour_type == 3)
+ if (*colour_type < 4/*no alpha channel*/)
{
- /* Add multiple palettes for colour type 3. */
- if (++*palette_number < PALETTE_COUNT(*bit_depth))
+ /* Add multiple palettes for colour type 3, one image with tRNS
+ * and one without for other non-alpha formats:
+ */
+ unsigned int pn = ++*palette_number;
+ png_byte ct = *colour_type;
+
+ if (((ct == 0/*GRAY*/ || ct/*RGB*/ == 2) && tRNS && pn < 2) ||
+ (ct == 3/*PALETTE*/ && pn < PALETTE_COUNT(*bit_depth)))
return 1;
+ /* No: next bit depth */
*palette_number = 0;
}
#ifdef PNG_READ_TRANSFORMS_SUPPORTED
static unsigned int
sample(png_const_bytep row, png_byte colour_type, png_byte bit_depth,
- png_uint_32 x, unsigned int sample_index)
+ png_uint_32 x, unsigned int sample_index, int swap16, int littleendian)
{
png_uint_32 bit_index, result;
return result;
else if (bit_depth > 8)
- return (result << 8) + *++row;
+ {
+ if (swap16)
+ return (*++row << 8) + result;
+ else
+ return (result << 8) + *++row;
+ }
- /* Less than 8 bits per sample. */
+ /* Less than 8 bits per sample. By default PNG has the big end of
+ * the egg on the left of the screen, but if littleendian is set
+ * then the big end is on the right.
+ */
bit_index &= 7;
- return (result >> (8-bit_index-bit_depth)) & ((1U<<bit_depth)-1);
+
+ if (!littleendian)
+ bit_index = 8-bit_index-bit_depth;
+
+ return (result >> bit_index) & ((1U<<bit_depth)-1);
}
#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
*/
static void
pixel_copy(png_bytep toBuffer, png_uint_32 toIndex,
- png_const_bytep fromBuffer, png_uint_32 fromIndex, unsigned int pixelSize)
+ png_const_bytep fromBuffer, png_uint_32 fromIndex, unsigned int pixelSize,
+ int littleendian)
{
/* Assume we can multiply by 'size' without overflow because we are
* just working in a single buffer.
if (pixelSize < 8) /* Sub-byte */
{
/* Mask to select the location of the copied pixel: */
- unsigned int destMask = ((1U<<pixelSize)-1) << (8-pixelSize-(toIndex&7));
+ unsigned int destMask = ((1U<<pixelSize)-1) <<
+ (littleendian ? toIndex&7 : 8-pixelSize-(toIndex&7));
/* The following read the entire pixels and clears the extra: */
unsigned int destByte = toBuffer[toIndex >> 3] & ~destMask;
unsigned int sourceByte = fromBuffer[fromIndex >> 3];
/* Don't rely on << or >> supporting '0' here, just in case: */
fromIndex &= 7;
- if (fromIndex > 0) sourceByte <<= fromIndex;
- if ((toIndex & 7) > 0) sourceByte >>= toIndex & 7;
+ if (littleendian)
+ {
+ if (fromIndex > 0) sourceByte >>= fromIndex;
+ if ((toIndex & 7) > 0) sourceByte <<= toIndex & 7;
+ }
+
+ else
+ {
+ if (fromIndex > 0) sourceByte <<= fromIndex;
+ if ((toIndex & 7) > 0) sourceByte >>= toIndex & 7;
+ }
toBuffer[toIndex >> 3] = (png_byte)(destByte | (sourceByte & destMask));
}
* bytes at the end.
*/
static void
-row_copy(png_bytep toBuffer, png_const_bytep fromBuffer, unsigned int bitWidth)
+row_copy(png_bytep toBuffer, png_const_bytep fromBuffer, unsigned int bitWidth,
+ int littleendian)
{
memcpy(toBuffer, fromBuffer, bitWidth >> 3);
toBuffer += bitWidth >> 3;
fromBuffer += bitWidth >> 3;
- /* The remaining bits are in the top of the byte, the mask is the bits to
- * retain.
- */
- mask = 0xff >> (bitWidth & 7);
+ if (littleendian)
+ mask = 0xff << (bitWidth & 7);
+ else
+ mask = 0xff >> (bitWidth & 7);
*toBuffer = (png_byte)((*toBuffer & mask) | (*fromBuffer & ~mask));
}
}
make_four_random_bytes(store_seed, mark);
}
-#ifdef PNG_READ_SUPPORTED
+#ifdef PNG_READ_TRANSFORMS_SUPPORTED
/* Use this for random 32 bit values; this function makes sure the result is
* non-zero.
*/
random_32(void)
{
- for(;;)
+ for (;;)
{
png_byte mark[4];
png_uint_32 result;
/* Generate an error message (in the given buffer) */
static size_t
store_message(png_store *ps, png_const_structp pp, char *buffer, size_t bufsize,
- size_t pos, PNG_CONST char *msg)
+ size_t pos, const char *msg)
{
if (pp != NULL && pp == ps->pread)
{
*/
/* Return a single row from the correct image. */
static png_bytep
-store_image_row(PNG_CONST png_store* ps, png_const_structp pp, int nImage,
+store_image_row(const png_store* ps, png_const_structp pp, int nImage,
png_uint_32 y)
{
png_size_t coffset = (nImage * ps->image_h + y) * (ps->cb_row + 5) + 2;
#ifdef PNG_READ_SUPPORTED
static void
-store_image_check(PNG_CONST png_store* ps, png_const_structp pp, int iImage)
+store_image_check(const png_store* ps, png_const_structp pp, int iImage)
{
png_const_bytep image = ps->image;
* operation.)
*/
if (ps->current == NULL)
+ {
store_log(ps, ps->pread, "no current stream for palette", 1);
+ return NULL;
+ }
/* The result may be null if there is no palette. */
*npalette = ps->current->npalette;
* all the memory.
*/
static void
-store_pool_error(png_store *ps, png_const_structp pp, PNG_CONST char *msg)
+store_pool_error(png_store *ps, png_const_structp pp, const char *msg)
{
if (pp != NULL)
png_error(pp, msg);
next->next = NULL;
fprintf(stderr, "\t%lu bytes @ %p\n",
- (unsigned long)next->size, (PNG_CONST void*)(next+1));
+ (unsigned long)next->size, (const void*)(next+1));
/* The NULL means this will always return, even if the memory is
* corrupted.
*/
* returned libpng structures as destroyed by store_write_reset above.
*/
static png_structp
-set_store_for_write(png_store *ps, png_infopp ppi,
- PNG_CONST char * volatile name)
+set_store_for_write(png_store *ps, png_infopp ppi, const char *name)
{
anon_context(ps);
*/
static png_structp
set_store_for_read(png_store *ps, png_infopp ppi, png_uint_32 id,
- PNG_CONST char *name)
+ const char *name)
{
/* Set the name for png_error */
safecat(ps->test, sizeof ps->test, 0, name);
} color_encoding;
#ifdef PNG_READ_SUPPORTED
+#if defined PNG_READ_TRANSFORMS_SUPPORTED && defined PNG_READ_cHRM_SUPPORTED
static double
chromaticity_x(CIE_color c)
{
}
static CIE_color
-white_point(PNG_CONST color_encoding *encoding)
+white_point(const color_encoding *encoding)
{
CIE_color white;
return white;
}
+#endif /* READ_TRANSFORMS && READ_cHRM */
#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
static void
normalize_color_encoding(color_encoding *encoding)
{
- PNG_CONST double whiteY = encoding->red.Y + encoding->green.Y +
+ const double whiteY = encoding->red.Y + encoding->green.Y +
encoding->blue.Y;
if (whiteY != 1)
}
#endif
+#ifdef PNG_READ_TRANSFORMS_SUPPORTED
static size_t
safecat_color_encoding(char *buffer, size_t bufsize, size_t pos,
- PNG_CONST color_encoding *e, double encoding_gamma)
+ const color_encoding *e, double encoding_gamma)
{
if (e != 0)
{
return pos;
}
+#endif /* READ_TRANSFORMS */
#endif /* PNG_READ_SUPPORTED */
typedef struct png_modifier
unsigned int ngammas;
unsigned int ngamma_tests; /* Number of gamma tests to run*/
double current_gamma; /* 0 if not set */
- PNG_CONST color_encoding *encodings;
+ const color_encoding *encodings;
unsigned int nencodings;
- PNG_CONST color_encoding *current_encoding; /* If an encoding has been set */
+ const color_encoding *current_encoding; /* If an encoding has been set */
unsigned int encoding_counter; /* For iteration */
int encoding_ignored; /* Something overwrote it */
unsigned int repeat :1; /* Repeat this transform test. */
unsigned int test_uses_encoding :1;
- /* Lowest sbit to test (libpng fails for sbit < 8) */
+ /* Lowest sbit to test (pre-1.7 libpng fails for sbit < 8) */
png_byte sbitlow;
/* Error control - these are the limits on errors accepted by the gamma tests
* internal check on pngvalid to ensure that the calculated error limits are
* not ridiculous; without this it is too easy to make a mistake in pngvalid
* that allows any value through.
+ *
+ * NOTE: this is not checked in release builds.
*/
double limit; /* limit on error values, normally 4E-3 */
/* Run tests on reading with a combination of transforms, */
unsigned int test_transform :1;
+ unsigned int test_tRNS :1; /* Includes tRNS images */
/* When to use the use_input_precision option, this controls the gamma
* validation code checks. If set any value that is within the transformed
unsigned int test_gamma_expand16 :1;
unsigned int test_exhaustive :1;
+ /* Whether or not to run the low-bit-depth grayscale tests. This fails on
+ * gamma images in some cases because of gross inaccuracies in the grayscale
+ * gamma handling for low bit depth.
+ */
+ unsigned int test_lbg :1;
+ unsigned int test_lbg_gamma_threshold :1;
+ unsigned int test_lbg_gamma_transform :1;
+ unsigned int test_lbg_gamma_sbit :1;
+ unsigned int test_lbg_gamma_composition :1;
+
unsigned int log :1; /* Log max error */
/* Buffer information, the buffer size limits the size of the chunks that can
pm->test_standard = 0;
pm->test_size = 0;
pm->test_transform = 0;
+# ifdef PNG_WRITE_tRNS_SUPPORTED
+ pm->test_tRNS = 1;
+# else
+ pm->test_tRNS = 0;
+# endif
pm->use_input_precision = 0;
pm->use_input_precision_sbit = 0;
pm->use_input_precision_16to8 = 0;
pm->test_gamma_background = 0;
pm->test_gamma_alpha_mode = 0;
pm->test_gamma_expand16 = 0;
+ pm->test_lbg = 1;
+ pm->test_lbg_gamma_threshold = 1;
+ pm->test_lbg_gamma_transform = 1;
+ pm->test_lbg_gamma_sbit = 1;
+ pm->test_lbg_gamma_composition = 1;
pm->test_exhaustive = 0;
pm->log = 0;
* rounding and 'do_round' should be 1, if it is 0 the digitized value will
* be truncated.
*/
- PNG_CONST unsigned int digitization_factor = (1U << depth) -1;
+ const unsigned int digitization_factor = (1U << depth) -1;
/* Limiting the range is done as a convenience to the caller - it's easier to
* do it once here than every time at the call site.
#endif /* RGB_TO_GRAY */
#ifdef PNG_READ_GAMMA_SUPPORTED
-static double abserr(PNG_CONST png_modifier *pm, int in_depth, int out_depth)
+static double abserr(const png_modifier *pm, int in_depth, int out_depth)
{
/* Absolute error permitted in linear values - affected by the bit depth of
* the calculations.
return pm->maxabs8;
}
-static double calcerr(PNG_CONST png_modifier *pm, int in_depth, int out_depth)
+static double calcerr(const png_modifier *pm, int in_depth, int out_depth)
{
/* Error in the linear composition arithmetic - only relevant when
* composition actually happens (0 < alpha < 1).
return pm->maxcalc8;
}
-static double pcerr(PNG_CONST png_modifier *pm, int in_depth, int out_depth)
+static double pcerr(const png_modifier *pm, int in_depth, int out_depth)
{
/* Percentage error permitted in the linear values. Note that the specified
* value is a percentage but this routine returns a simple number.
* The specified parameter does *not* include the base .5 digitization error but
* it is added here.
*/
-static double outerr(PNG_CONST png_modifier *pm, int in_depth, int out_depth)
+static double outerr(const png_modifier *pm, int in_depth, int out_depth)
{
/* There is a serious error in the 2 and 4 bit grayscale transform because
* the gamma table value (8 bits) is simply shifted, not rounded, so the
* rather than raising a warning. This is useful for debugging to track down
* exactly what set of parameters cause high error values.
*/
-static double outlog(PNG_CONST png_modifier *pm, int in_depth, int out_depth)
+static double outlog(const png_modifier *pm, int in_depth, int out_depth)
{
/* The command line parameters are either 8 bit (0..255) or 16 bit (0..65535)
* and so must be adjusted for low bit depth grayscale:
* but in the 8 bit calculation case it's actually quantization to a multiple of
* 257!
*/
-static int output_quantization_factor(PNG_CONST png_modifier *pm, int in_depth,
+static int output_quantization_factor(const png_modifier *pm, int in_depth,
int out_depth)
{
if (out_depth == 16 && in_depth != 16 &&
#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
static void
-modifier_current_encoding(PNG_CONST png_modifier *pm, color_encoding *ce)
+modifier_current_encoding(const png_modifier *pm, color_encoding *ce)
{
if (pm->current_encoding != 0)
*ce = *pm->current_encoding;
}
#endif
+#ifdef PNG_READ_TRANSFORMS_SUPPORTED
static size_t
safecat_current_encoding(char *buffer, size_t bufsize, size_t pos,
- PNG_CONST png_modifier *pm)
+ const png_modifier *pm)
{
pos = safecat_color_encoding(buffer, bufsize, pos, pm->current_encoding,
pm->current_gamma);
return pos;
}
+#endif
/* Iterate through the usefully testable color encodings. An encoding is one
* of:
* caller of modifier_reset must reset it at the start of each run of the test!
*/
static unsigned int
-modifier_total_encodings(PNG_CONST png_modifier *pm)
+modifier_total_encodings(const png_modifier *pm)
{
return 1 + /* (1) nothing */
pm->ngammas + /* (2) gamma values to test */
* assumption below that the first encoding in the list is the one for sRGB.
*/
static int
-modifier_color_encoding_is_sRGB(PNG_CONST png_modifier *pm)
+modifier_color_encoding_is_sRGB(const png_modifier *pm)
{
return pm->current_encoding != 0 && pm->current_encoding == pm->encodings &&
pm->current_encoding->gamma == pm->current_gamma;
}
static int
-modifier_color_encoding_is_set(PNG_CONST png_modifier *pm)
+modifier_color_encoding_is_set(const png_modifier *pm)
{
return pm->current_gamma != 0;
}
/* Set up a modifier. */
static png_structp
set_modifier_for_read(png_modifier *pm, png_infopp ppi, png_uint_32 id,
- PNG_CONST char *name)
+ const char *name)
{
/* Do this first so that the modifier fields are cleared even if an error
* happens allocating the png_struct. No allocation is done here so no
typedef struct chrm_modification
{
png_modification this;
- PNG_CONST color_encoding *encoding;
+ const color_encoding *encoding;
png_fixed_point wx, wy, rx, ry, gx, gy, bx, by;
} chrm_modification;
static void
chrm_modification_init(chrm_modification *me, png_modifier *pm,
- PNG_CONST color_encoding *encoding)
+ const color_encoding *encoding)
{
CIE_color white = white_point(encoding);
for (; i<256; ++i)
tRNS[i] = 24;
-# ifdef PNG_WRITE_tRNS_SUPPORTED
+# ifdef PNG_WRITE_tRNS_SUPPORTED
if (j > 0)
png_set_tRNS(pp, pi, tRNS, j, 0/*color*/);
-# endif
+# endif
+ }
+}
+
+#ifdef PNG_WRITE_tRNS_SUPPORTED
+static void
+set_random_tRNS(png_structp pp, png_infop pi, const png_byte colour_type,
+ const int bit_depth)
+{
+ /* To make this useful the tRNS color needs to match at least one pixel.
+ * Random values are fine for gray, including the 16-bit case where we know
+ * that the test image contains all the gray values. For RGB we need more
+ * method as only 65536 different RGB values are generated.
+ */
+ png_color_16 tRNS;
+ const png_uint_16 mask = (png_uint_16)((1U << bit_depth)-1);
+
+ R8(tRNS); /* makes unset fields random */
+
+ if (colour_type & 2/*RGB*/)
+ {
+ if (bit_depth == 8)
+ {
+ R16(tRNS.red);
+ R16(tRNS.green);
+ tRNS.blue = tRNS.red ^ tRNS.green;
+ tRNS.red &= mask;
+ tRNS.green &= mask;
+ tRNS.blue &= mask;
+ }
+
+ else /* bit_depth == 16 */
+ {
+ R16(tRNS.red);
+ tRNS.green = (png_uint_16)(tRNS.red * 257);
+ tRNS.blue = (png_uint_16)(tRNS.green * 17);
+ }
+ }
+
+ else
+ {
+ R16(tRNS.gray);
+ tRNS.gray &= mask;
}
+
+ png_set_tRNS(pp, pi, NULL, 0, &tRNS);
}
+#endif
/* The number of passes is related to the interlace type. There was no libpng
* API to determine this prior to 1.5, so we need an inquiry function:
#ifdef PNG_WRITE_INTERLACING_SUPPORTED
# define INTERLACE_LAST PNG_INTERLACE_LAST
# define check_interlace_type(type) ((void)(type))
-#else
-# define INTERLACE_LAST (PNG_INTERLACE_NONE+1)
-# define png_set_interlace_handling(a) (1)
-
+# define set_write_interlace_handling(pp,type) png_set_interlace_handling(pp)
+# define do_own_interlace 0
+#elif PNG_LIBPNG_VER < 10700
+# define set_write_interlace_handling(pp,type) (1)
static void
-check_interlace_type(int PNG_CONST interlace_type)
+check_interlace_type(int const interlace_type)
{
+ /* Prior to 1.7.0 libpng does not support the write of an interlaced image
+ * unless PNG_WRITE_INTERLACING_SUPPORTED, even with do_interlace so the
+ * code here does the pixel interlace itself, so:
+ */
if (interlace_type != PNG_INTERLACE_NONE)
{
/* This is an internal error - --interlace tests should be skipped, not
exit(99);
}
}
+# define INTERLACE_LAST (PNG_INTERLACE_NONE+1)
+# define do_own_interlace 0
+#else /* libpng 1.7+ */
+# define set_write_interlace_handling(pp,type)\
+ npasses_from_interlace_type(pp,type)
+# define check_interlace_type(type) ((void)(type))
+# define INTERLACE_LAST PNG_INTERLACE_LAST
+# define do_own_interlace 1
+#endif /* WRITE_INTERLACING tests */
+
+#define CAN_WRITE_INTERLACE\
+ PNG_LIBPNG_VER >= 10700 || defined PNG_WRITE_INTERLACING_SUPPORTED
+
+/* Do the same thing for read interlacing; this controls whether read tests do
+ * their own de-interlace or use libpng.
+ */
+#ifdef PNG_READ_INTERLACING_SUPPORTED
+# define do_read_interlace 0
+#else /* no libpng read interlace support */
+# define do_read_interlace 1
#endif
+/* The following two routines use the PNG interlace support macros from
+ * png.h to interlace or deinterlace rows.
+ */
+static void
+interlace_row(png_bytep buffer, png_const_bytep imageRow,
+ unsigned int pixel_size, png_uint_32 w, int pass, int littleendian)
+{
+ png_uint_32 xin, xout, xstep;
+
+ /* Note that this can, trivially, be optimized to a memcpy on pass 7, the
+ * code is presented this way to make it easier to understand. In practice
+ * consult the code in the libpng source to see other ways of doing this.
+ *
+ * It is OK for buffer and imageRow to be identical, because 'xin' moves
+ * faster than 'xout' and we copy up.
+ */
+ xin = PNG_PASS_START_COL(pass);
+ xstep = 1U<<PNG_PASS_COL_SHIFT(pass);
+
+ for (xout=0; xin<w; xin+=xstep)
+ {
+ pixel_copy(buffer, xout, imageRow, xin, pixel_size, littleendian);
+ ++xout;
+ }
+}
+
+#ifdef PNG_READ_SUPPORTED
+static void
+deinterlace_row(png_bytep buffer, png_const_bytep row,
+ unsigned int pixel_size, png_uint_32 w, int pass, int littleendian)
+{
+ /* The inverse of the above, 'row' is part of row 'y' of the output image,
+ * in 'buffer'. The image is 'w' wide and this is pass 'pass', distribute
+ * the pixels of row into buffer and return the number written (to allow
+ * this to be checked).
+ */
+ png_uint_32 xin, xout, xstep;
+
+ xout = PNG_PASS_START_COL(pass);
+ xstep = 1U<<PNG_PASS_COL_SHIFT(pass);
+
+ for (xin=0; xout<w; xout+=xstep)
+ {
+ pixel_copy(buffer, xout, row, xin, pixel_size, littleendian);
+ ++xin;
+ }
+}
+#endif /* PNG_READ_SUPPORTED */
-/* Make a standardized image given a an image colour type, bit depth and
+/* Make a standardized image given an image colour type, bit depth and
* interlace type. The standard images have a very restricted range of
* rows and heights and are used for testing transforms rather than image
* layout details. See make_size_images below for a way to make images
* that test odd sizes along with the libpng interlace handling.
*/
+#ifdef PNG_WRITE_FILTER_SUPPORTED
+static void
+choose_random_filter(png_structp pp, int start)
+{
+ /* Choose filters randomly except that on the very first row ensure that
+ * there is at least one previous row filter.
+ */
+ int filters = PNG_ALL_FILTERS & random_mod(256U);
+
+ /* There may be no filters; skip the setting. */
+ if (filters != 0)
+ {
+ if (start && filters < PNG_FILTER_UP)
+ filters |= PNG_FILTER_UP;
+
+ png_set_filter(pp, 0/*method*/, filters);
+ }
+}
+#else /* !WRITE_FILTER */
+# define choose_random_filter(pp, start) ((void)0)
+#endif /* !WRITE_FILTER */
+
static void
-make_transform_image(png_store* PNG_CONST ps, png_byte PNG_CONST colour_type,
- png_byte PNG_CONST bit_depth, unsigned int palette_number,
+make_transform_image(png_store* const ps, png_byte const colour_type,
+ png_byte const bit_depth, unsigned int palette_number,
int interlace_type, png_const_charp name)
{
context(ps, fault);
{
png_infop pi;
png_structp pp = set_store_for_write(ps, &pi, name);
- png_uint_32 h;
+ png_uint_32 h, w;
/* In the event of a problem return control to the Catch statement below
* to do the clean up - it is not possible to 'return' directly from a Try
if (pp == NULL)
Throw ps;
+ w = transform_width(pp, colour_type, bit_depth);
h = transform_height(pp, colour_type, bit_depth);
- png_set_IHDR(pp, pi, transform_width(pp, colour_type, bit_depth), h,
- bit_depth, colour_type, interlace_type,
+ png_set_IHDR(pp, pi, w, h, bit_depth, colour_type, interlace_type,
PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
#ifdef PNG_TEXT_SUPPORTED
if (colour_type == 3) /* palette */
init_standard_palette(ps, pp, pi, 1U << bit_depth, 1/*do tRNS*/);
+# ifdef PNG_WRITE_tRNS_SUPPORTED
+ else if (palette_number)
+ set_random_tRNS(pp, pi, colour_type, bit_depth);
+# endif
+
png_write_info(pp, pi);
if (png_get_rowbytes(pp, pi) !=
transform_rowsize(pp, colour_type, bit_depth))
- png_error(pp, "row size incorrect");
+ png_error(pp, "transform row size incorrect");
else
{
* because if it is called before, the information in *pp has not been
* updated to reflect the interlaced image.
*/
- int npasses = png_set_interlace_handling(pp);
+ int npasses = set_write_interlace_handling(pp, interlace_type);
int pass;
if (npasses != npasses_from_interlace_type(pp, interlace_type))
{
png_uint_32 y;
+ /* do_own_interlace is a pre-defined boolean (a #define) which is
+ * set if we have to work out the interlaced rows here.
+ */
for (y=0; y<h; ++y)
{
png_byte buffer[TRANSFORM_ROWMAX];
transform_row(pp, buffer, colour_type, bit_depth, y);
+
+# if do_own_interlace
+ /* If do_own_interlace *and* the image is interlaced we need a
+ * reduced interlace row; this may be reduced to empty.
+ */
+ if (interlace_type == PNG_INTERLACE_ADAM7)
+ {
+ /* The row must not be written if it doesn't exist, notice
+ * that there are two conditions here, either the row isn't
+ * ever in the pass or the row would be but isn't wide
+ * enough to contribute any pixels. In fact the wPass test
+ * can be used to skip the whole y loop in this case.
+ */
+ if (PNG_ROW_IN_INTERLACE_PASS(y, pass) &&
+ PNG_PASS_COLS(w, pass) > 0)
+ interlace_row(buffer, buffer,
+ bit_size(pp, colour_type, bit_depth), w, pass,
+ 0/*data always bigendian*/);
+ else
+ continue;
+ }
+# endif /* do_own_interlace */
+
+ choose_random_filter(pp, pass == 0 && y == 0);
png_write_row(pp, buffer);
}
}
}
static void
-make_transform_images(png_store *ps)
+make_transform_images(png_modifier *pm)
{
png_byte colour_type = 0;
png_byte bit_depth = 0;
unsigned int palette_number = 0;
/* This is in case of errors. */
- safecat(ps->test, sizeof ps->test, 0, "make standard images");
+ safecat(pm->this.test, sizeof pm->this.test, 0, "make standard images");
/* Use next_format to enumerate all the combinations we test, including
- * generating multiple low bit depth palette images.
+ * generating multiple low bit depth palette images. Non-A images (palette
+ * and direct) are created with and without tRNS chunks.
*/
- while (next_format(&colour_type, &bit_depth, &palette_number, 0))
+ while (next_format(&colour_type, &bit_depth, &palette_number, 1, 1))
{
int interlace_type;
char name[FILE_NAME_SIZE];
standard_name(name, sizeof name, 0, colour_type, bit_depth,
- palette_number, interlace_type, 0, 0, 0);
- make_transform_image(ps, colour_type, bit_depth, palette_number,
+ palette_number, interlace_type, 0, 0, do_own_interlace);
+ make_transform_image(&pm->this, colour_type, bit_depth, palette_number,
interlace_type, name);
}
}
}
-/* The following two routines use the PNG interlace support macros from
- * png.h to interlace or deinterlace rows.
- */
-static void
-interlace_row(png_bytep buffer, png_const_bytep imageRow,
- unsigned int pixel_size, png_uint_32 w, int pass)
-{
- png_uint_32 xin, xout, xstep;
-
- /* Note that this can, trivially, be optimized to a memcpy on pass 7, the
- * code is presented this way to make it easier to understand. In practice
- * consult the code in the libpng source to see other ways of doing this.
- */
- xin = PNG_PASS_START_COL(pass);
- xstep = 1U<<PNG_PASS_COL_SHIFT(pass);
-
- for (xout=0; xin<w; xin+=xstep)
- {
- pixel_copy(buffer, xout, imageRow, xin, pixel_size);
- ++xout;
- }
-}
-
-#ifdef PNG_READ_SUPPORTED
-static void
-deinterlace_row(png_bytep buffer, png_const_bytep row,
- unsigned int pixel_size, png_uint_32 w, int pass)
-{
- /* The inverse of the above, 'row' is part of row 'y' of the output image,
- * in 'buffer'. The image is 'w' wide and this is pass 'pass', distribute
- * the pixels of row into buffer and return the number written (to allow
- * this to be checked).
- */
- png_uint_32 xin, xout, xstep;
-
- xout = PNG_PASS_START_COL(pass);
- xstep = 1U<<PNG_PASS_COL_SHIFT(pass);
-
- for (xin=0; xout<w; xout+=xstep)
- {
- pixel_copy(buffer, xout, row, xin, pixel_size);
- ++xin;
- }
-}
-#endif /* PNG_READ_SUPPORTED */
-
/* Build a single row for the 'size' test images; this fills in only the
* first bit_width bits of the sample row.
*/
}
static void
-make_size_image(png_store* PNG_CONST ps, png_byte PNG_CONST colour_type,
- png_byte PNG_CONST bit_depth, int PNG_CONST interlace_type,
- png_uint_32 PNG_CONST w, png_uint_32 PNG_CONST h,
- int PNG_CONST do_interlace)
+make_size_image(png_store* const ps, png_byte const colour_type,
+ png_byte const bit_depth, int const interlace_type,
+ png_uint_32 const w, png_uint_32 const h,
+ int const do_interlace)
{
context(ps, fault);
- /* At present libpng does not support the write of an interlaced image unless
- * PNG_WRITE_INTERLACING_SUPPORTED, even with do_interlace so the code here
- * does the pixel interlace itself, so:
- */
check_interlace_type(interlace_type);
Try
/* Make a name and get an appropriate id for the store: */
char name[FILE_NAME_SIZE];
- PNG_CONST png_uint_32 id = FILEID(colour_type, bit_depth, 0/*palette*/,
+ const png_uint_32 id = FILEID(colour_type, bit_depth, 0/*palette*/,
interlace_type, w, h, do_interlace);
standard_name_from_id(name, sizeof name, 0, id);
*/
pixel_size = bit_size(pp, colour_type, bit_depth);
if (png_get_rowbytes(pp, pi) != ((w * pixel_size) + 7) / 8)
- png_error(pp, "row size incorrect");
+ png_error(pp, "size row size incorrect");
else
{
int npasses = npasses_from_interlace_type(pp, interlace_type);
png_uint_32 y;
int pass;
-# ifdef PNG_WRITE_FILTER_SUPPORTED
- int nfilter = PNG_FILTER_VALUE_LAST;
-# endif
png_byte image[16][SIZE_ROWMAX];
/* To help consistent error detection make the parts of this buffer
*/
memset(image, 0xff, sizeof image);
- if (!do_interlace && npasses != png_set_interlace_handling(pp))
+ if (!do_interlace &&
+ npasses != set_write_interlace_handling(pp, interlace_type))
png_error(pp, "write: png_set_interlace_handling failed");
/* Prepare the whole image first to avoid making it 7 times: */
for (pass=0; pass<npasses; ++pass)
{
/* The following two are for checking the macros: */
- PNG_CONST png_uint_32 wPass = PNG_PASS_COLS(w, pass);
+ const png_uint_32 wPass = PNG_PASS_COLS(w, pass);
/* If do_interlace is set we don't call png_write_row for every
* row because some of them are empty. In fact, for a 1x1 image,
* set unset things to 0).
*/
memset(tempRow, 0xff, sizeof tempRow);
- interlace_row(tempRow, row, pixel_size, w, pass);
+ interlace_row(tempRow, row, pixel_size, w, pass,
+ 0/*data always bigendian*/);
row = tempRow;
}
else
* does accept a filter number (per the spec) as well as a bit
* mask.
*
- * The apparent wackiness of decrementing nfilter rather than
- * incrementing is so that Paeth gets used in all images bigger
- * than 1 row - it's the tricky one.
+ * The code now uses filters at random, except that on the first
+ * row of an image it ensures that a previous row filter is in
+ * the set so that libpng allocates the row buffer.
*/
- png_set_filter(pp, 0/*method*/,
- nfilter >= PNG_FILTER_VALUE_LAST ? PNG_ALL_FILTERS : nfilter);
+ {
+ int filters = 8 << random_mod(PNG_FILTER_VALUE_LAST);
+
+ if (pass == 0 && y == 0 &&
+ (filters < PNG_FILTER_UP || w == 1U))
+ filters |= PNG_FILTER_UP;
- if (nfilter-- == 0)
- nfilter = PNG_FILTER_VALUE_LAST-1;
+ png_set_filter(pp, 0/*method*/, filters);
+ }
# endif
png_write_row(pp, row);
}
static void
-make_size(png_store* PNG_CONST ps, png_byte PNG_CONST colour_type, int bdlo,
- int PNG_CONST bdhi)
+make_size(png_store* const ps, png_byte const colour_type, int bdlo,
+ int const bdhi)
{
for (; bdlo <= bdhi; ++bdlo)
{
# ifdef PNG_WRITE_INTERLACING_SUPPORTED
make_size_image(ps, colour_type, DEPTH(bdlo), PNG_INTERLACE_ADAM7,
width, height, 0);
+# endif
+# if CAN_WRITE_INTERLACE
+ /* 1.7.0 removes the hack that prevented app write of an interlaced
+ * image if WRITE_INTERLACE was not supported
+ */
make_size_image(ps, colour_type, DEPTH(bdlo), PNG_INTERLACE_ADAM7,
width, height, 1);
# endif
png_set_sBIT(pp, pi, &bad);
}
-static PNG_CONST struct
+static const struct
{
void (*fn)(png_structp, png_infop);
- PNG_CONST char *msg;
+ const char *msg;
unsigned int warning :1; /* the error is a warning... */
} error_test[] =
{
- /* no warnings makes these errors undetectable. */
- { sBIT0_error_fn, "sBIT(0): failed to detect error", 1 },
- { sBIT_error_fn, "sBIT(too big): failed to detect error", 1 },
+ /* no warnings makes these errors undetectable prior to 1.7.0 */
+ { sBIT0_error_fn, "sBIT(0): failed to detect error",
+ PNG_LIBPNG_VER < 10700 },
+
+ { sBIT_error_fn, "sBIT(too big): failed to detect error",
+ PNG_LIBPNG_VER < 10700 },
};
static void
-make_error(png_store* volatile psIn, png_byte PNG_CONST colour_type,
+make_error(png_store* const ps, png_byte const colour_type,
png_byte bit_depth, int interlace_type, int test, png_const_charp name)
{
- png_store * volatile ps = psIn;
-
context(ps, fault);
check_interlace_type(interlace_type);
Try
{
- png_structp pp;
png_infop pi;
-
- pp = set_store_for_write(ps, &pi, name);
+ const png_structp pp = set_store_for_write(ps, &pi, name);
+ png_uint_32 w, h;
+ gnu_volatile(pp)
if (pp == NULL)
Throw ps;
- png_set_IHDR(pp, pi, transform_width(pp, colour_type, bit_depth),
- transform_height(pp, colour_type, bit_depth), bit_depth, colour_type,
- interlace_type, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
+ w = transform_width(pp, colour_type, bit_depth);
+ gnu_volatile(w)
+ h = transform_height(pp, colour_type, bit_depth);
+ gnu_volatile(h)
+ png_set_IHDR(pp, pi, w, h, bit_depth, colour_type, interlace_type,
+ PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
if (colour_type == 3) /* palette */
init_standard_palette(ps, pp, pi, 1U << bit_depth, 0/*do tRNS*/);
# define exception__env exception_env_1
Try
{
+ gnu_volatile(exception__prev)
+
/* Expect this to throw: */
ps->expect_error = !error_test[test].warning;
ps->expect_warning = error_test[test].warning;
}
Catch (fault)
- ps = fault; /* expected exit, make sure ps is not clobbered */
+ { /* expected exit */
+ }
#undef exception__prev
#undef exception__env
/* And clear these flags */
- ps->expect_error = 0;
ps->expect_warning = 0;
- /* Now write the whole image, just to make sure that the detected, or
- * undetected, errro has not created problems inside libpng.
- */
- if (png_get_rowbytes(pp, pi) !=
- transform_rowsize(pp, colour_type, bit_depth))
- png_error(pp, "row size incorrect");
+ if (ps->expect_error)
+ ps->expect_error = 0;
else
{
- png_uint_32 h = transform_height(pp, colour_type, bit_depth);
- int npasses = png_set_interlace_handling(pp);
- int pass;
-
- if (npasses != npasses_from_interlace_type(pp, interlace_type))
- png_error(pp, "write: png_set_interlace_handling failed");
+ /* Now write the whole image, just to make sure that the detected, or
+ * undetected, errro has not created problems inside libpng. This
+ * doesn't work if there was a png_error in png_write_info because that
+ * can abort before PLTE was written.
+ */
+ if (png_get_rowbytes(pp, pi) !=
+ transform_rowsize(pp, colour_type, bit_depth))
+ png_error(pp, "row size incorrect");
- for (pass=0; pass<npasses; ++pass)
+ else
{
- png_uint_32 y;
+ int npasses = set_write_interlace_handling(pp, interlace_type);
+ int pass;
- for (y=0; y<h; ++y)
+ if (npasses != npasses_from_interlace_type(pp, interlace_type))
+ png_error(pp, "write: png_set_interlace_handling failed");
+
+ for (pass=0; pass<npasses; ++pass)
{
- png_byte buffer[TRANSFORM_ROWMAX];
+ png_uint_32 y;
- transform_row(pp, buffer, colour_type, bit_depth, y);
- png_write_row(pp, buffer);
- }
- }
- }
+ for (y=0; y<h; ++y)
+ {
+ png_byte buffer[TRANSFORM_ROWMAX];
- png_write_end(pp, pi);
+ transform_row(pp, buffer, colour_type, bit_depth, y);
- /* The following deletes the file that was just written. */
- store_write_reset(ps);
- }
+# if do_own_interlace
+ /* If do_own_interlace *and* the image is interlaced we
+ * need a reduced interlace row; this may be reduced to
+ * empty.
+ */
+ if (interlace_type == PNG_INTERLACE_ADAM7)
+ {
+ /* The row must not be written if it doesn't exist,
+ * notice that there are two conditions here, either the
+ * row isn't ever in the pass or the row would be but
+ * isn't wide enough to contribute any pixels. In fact
+ * the wPass test can be used to skip the whole y loop
+ * in this case.
+ */
+ if (PNG_ROW_IN_INTERLACE_PASS(y, pass) &&
+ PNG_PASS_COLS(w, pass) > 0)
+ interlace_row(buffer, buffer,
+ bit_size(pp, colour_type, bit_depth), w, pass,
+ 0/*data always bigendian*/);
+ else
+ continue;
+ }
+# endif /* do_own_interlace */
+
+ png_write_row(pp, buffer);
+ }
+ }
+ } /* image writing */
+
+ png_write_end(pp, pi);
+ }
+
+ /* The following deletes the file that was just written. */
+ store_write_reset(ps);
+ }
Catch(fault)
{
}
static int
-make_errors(png_modifier* PNG_CONST pm, png_byte PNG_CONST colour_type,
- int bdlo, int PNG_CONST bdhi)
+make_errors(png_modifier* const pm, png_byte const colour_type,
+ int bdlo, int const bdhi)
{
for (; bdlo <= bdhi; ++bdlo)
{
char name[FILE_NAME_SIZE];
standard_name(name, sizeof name, 0, colour_type, 1<<bdlo, 0,
- interlace_type, 0, 0, 0);
+ interlace_type, 0, 0, do_own_interlace);
- for (test=0; test<(sizeof error_test)/(sizeof error_test[0]); ++test)
+ for (test=0; test<ARRAY_SIZE(error_test); ++test)
{
make_error(&pm->this, colour_type, DEPTH(bdlo), interlace_type,
test, name);
* then the warning messages the library outputs will probably be garbage.
*/
static void
-perform_formatting_test(png_store *volatile ps)
+perform_formatting_test(png_store *ps)
{
#ifdef PNG_TIME_RFC1123_SUPPORTED
/* The handle into the formatting code is the RFC1123 support; this test does
png_byte green_sBIT;
png_byte blue_sBIT;
png_byte alpha_sBIT;
- int interlace_type;
+ png_byte interlace_type;
+ png_byte filler; /* Output has a filler */
png_uint_32 id; /* Calculated file ID */
png_uint_32 w; /* Width of image */
png_uint_32 h; /* Height of image */
png_uint_32 bit_width; /* Width of output row in bits */
size_t cbRow; /* Bytes in a row of the output image */
int do_interlace; /* Do interlacing internally */
+ int littleendian; /* App (row) data is little endian */
int is_transparent; /* Transparency information was present. */
+ int has_tRNS; /* color type GRAY or RGB with a tRNS chunk. */
int speed; /* Doing a speed test */
int use_update_info;/* Call update_info, not start_image */
struct
dp->bit_width = 0;
dp->cbRow = 0;
dp->do_interlace = do_interlace;
+ dp->littleendian = 0;
dp->is_transparent = 0;
dp->speed = ps->speed;
dp->use_update_info = use_update_info;
case 0:
dp->transparent.red = dp->transparent.green = dp->transparent.blue =
trans_color->gray;
- dp->is_transparent = 1;
+ dp->has_tRNS = 1;
break;
case 2:
dp->transparent.red = trans_color->red;
dp->transparent.green = trans_color->green;
dp->transparent.blue = trans_color->blue;
- dp->is_transparent = 1;
+ dp->has_tRNS = 1;
break;
case 3:
* turning on interlace handling (if do_interlace is not set.)
*/
dp->npasses = npasses_from_interlace_type(pp, dp->interlace_type);
- if (!dp->do_interlace && dp->npasses != png_set_interlace_handling(pp))
- png_error(pp, "validate: file changed interlace type");
+ if (!dp->do_interlace)
+ {
+# ifdef PNG_READ_INTERLACING_SUPPORTED
+ if (dp->npasses != png_set_interlace_handling(pp))
+ png_error(pp, "validate: file changed interlace type");
+# else /* !READ_INTERLACING */
+ /* This should never happen: the relevant tests (!do_interlace) should
+ * not be run.
+ */
+ if (dp->npasses > 1)
+ png_error(pp, "validate: no libpng interlace support");
+# endif /* !READ_INTERLACING */
+ }
/* Caller calls png_read_update_info or png_start_read_image now, then calls
* part2.
png_const_infop pi, int nImages)
{
/* Record cbRow now that it can be found. */
- dp->pixel_size = bit_size(pp, png_get_color_type(pp, pi),
- png_get_bit_depth(pp, pi));
+ {
+ png_byte ct = png_get_color_type(pp, pi);
+ png_byte bd = png_get_bit_depth(pp, pi);
+
+ if (bd >= 8 && (ct == PNG_COLOR_TYPE_RGB || ct == PNG_COLOR_TYPE_GRAY) &&
+ dp->filler)
+ ct |= 4; /* handle filler as faked alpha channel */
+
+ dp->pixel_size = bit_size(pp, ct, bd);
+ }
dp->bit_width = png_get_image_width(pp, pi) * dp->pixel_size;
dp->cbRow = png_get_rowbytes(pp, pi);
progressive_row(png_structp ppIn, png_bytep new_row, png_uint_32 y, int pass)
{
png_const_structp pp = ppIn;
- PNG_CONST standard_display *dp = voidcast(standard_display*,
+ const standard_display *dp = voidcast(standard_display*,
png_get_progressive_ptr(pp));
/* When handling interlacing some rows will be absent in each pass, the
if (pass != png_get_current_pass_number(pp))
png_error(pp, "png_get_current_pass_number is broken");
-#endif
+#endif /* USER_TRANSFORM_INFO */
y = PNG_ROW_FROM_PASS_ROW(y, pass);
}
row = store_image_row(dp->ps, pp, 0, y);
-#ifdef PNG_READ_INTERLACING_SUPPORTED
/* Combine the new row into the old: */
+#ifdef PNG_READ_INTERLACING_SUPPORTED
if (dp->do_interlace)
+#endif /* READ_INTERLACING */
{
if (dp->interlace_type == PNG_INTERLACE_ADAM7)
- deinterlace_row(row, new_row, dp->pixel_size, dp->w, pass);
+ deinterlace_row(row, new_row, dp->pixel_size, dp->w, pass,
+ dp->littleendian);
else
- row_copy(row, new_row, dp->pixel_size * dp->w);
+ row_copy(row, new_row, dp->pixel_size * dp->w, dp->littleendian);
}
+#ifdef PNG_READ_INTERLACING_SUPPORTED
else
png_progressive_combine_row(pp, row, new_row);
#endif /* PNG_READ_INTERLACING_SUPPORTED */
}
-#ifdef PNG_READ_INTERLACING_SUPPORTED
else if (dp->interlace_type == PNG_INTERLACE_ADAM7 &&
PNG_ROW_IN_INTERLACE_PASS(y, pass) &&
PNG_PASS_COLS(dp->w, pass) > 0)
png_error(pp, "missing row in progressive de-interlacing");
-#endif /* PNG_READ_INTERLACING_SUPPORTED */
}
static void
sequential_row(standard_display *dp, png_structp pp, png_infop pi,
- PNG_CONST int iImage, PNG_CONST int iDisplay)
+ const int iImage, const int iDisplay)
{
- PNG_CONST int npasses = dp->npasses;
- PNG_CONST int do_interlace = dp->do_interlace &&
+ const int npasses = dp->npasses;
+ const int do_interlace = dp->do_interlace &&
dp->interlace_type == PNG_INTERLACE_ADAM7;
- PNG_CONST png_uint_32 height = standard_height(pp, dp->id);
- PNG_CONST png_uint_32 width = standard_width(pp, dp->id);
- PNG_CONST png_store* ps = dp->ps;
+ const png_uint_32 height = standard_height(pp, dp->id);
+ const png_uint_32 width = standard_width(pp, dp->id);
+ const png_store* ps = dp->ps;
int pass;
for (pass=0; pass<npasses; ++pass)
if (iImage >= 0)
deinterlace_row(store_image_row(ps, pp, iImage, y), row,
- dp->pixel_size, dp->w, pass);
+ dp->pixel_size, dp->w, pass, dp->littleendian);
if (iDisplay >= 0)
deinterlace_row(store_image_row(ps, pp, iDisplay, y), display,
- dp->pixel_size, dp->w, pass);
+ dp->pixel_size, dp->w, pass, dp->littleendian);
}
}
else
* In earlier passes 'row' will be partially filled in, with only the pixels
* that have been read so far, but 'display' will have those pixels
* replicated to fill the unread pixels while reading an interlaced image.
-#if PNG_LIBPNG_VER < 10506
- * The side effect inside the libpng sequential reader is that the 'row'
- * array retains the correct values for unwritten pixels within the row
- * bytes, while the 'display' array gets bits off the end of the image (in
- * the last byte) trashed. Unfortunately in the progressive reader the
- * row bytes are always trashed, so we always do a pixel_cmp here even though
- * a memcmp of all cbRow bytes will succeed for the sequential reader.
-#endif
*/
if (iImage >= 0 &&
(where = pixel_cmp(std, store_image_row(dp->ps, pp, iImage, y),
png_error(pp, msg);
}
-#if PNG_LIBPNG_VER < 10506
- /* In this case use pixel_cmp because we need to compare a partial
- * byte at the end of the row if the row is not an exact multiple
- * of 8 bits wide. (This is fixed in libpng-1.5.6 and pixel_cmp is
- * changed to match!)
- */
-#endif
if (iDisplay >= 0 &&
(where = pixel_cmp(std, store_image_row(dp->ps, pp, iDisplay, y),
dp->bit_width)) != 0)
{
char msg[64];
- sprintf(msg, "display row[%lu][%d] changed from %.2x to %.2x",
+ sprintf(msg, "display row[%lu][%d] changed from %.2x to %.2x",
(unsigned long)y, where-1, std[where-1],
store_image_row(dp->ps, pp, iDisplay, y)[where-1]);
png_error(pp, msg);
/* A single test run checking the standard image to ensure it is not damaged. */
static void
-standard_test(png_store* PNG_CONST psIn, png_uint_32 PNG_CONST id,
+standard_test(png_store* const psIn, png_uint_32 const id,
int do_interlace, int use_update_info)
{
standard_display d;
}
static int
-test_standard(png_modifier* PNG_CONST pm, png_byte PNG_CONST colour_type,
- int bdlo, int PNG_CONST bdhi)
+test_standard(png_modifier* const pm, png_byte const colour_type,
+ int bdlo, int const bdhi)
{
for (; bdlo <= bdhi; ++bdlo)
{
interlace_type < INTERLACE_LAST; ++interlace_type)
{
standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
- interlace_type, 0, 0, 0), 0/*do_interlace*/, pm->use_update_info);
+ interlace_type, 0, 0, 0), do_read_interlace, pm->use_update_info);
if (fail(pm))
return 0;
/********************************** SIZE TESTS ********************************/
static int
-test_size(png_modifier* PNG_CONST pm, png_byte PNG_CONST colour_type,
- int bdlo, int PNG_CONST bdhi)
+test_size(png_modifier* const pm, png_byte const colour_type,
+ int bdlo, int const bdhi)
{
/* Run the tests on each combination.
*
* width and height. This is a waste of time in practice, hence the
* hinc and winc stuff:
*/
- static PNG_CONST png_byte hinc[] = {1, 3, 11, 1, 5};
- static PNG_CONST png_byte winc[] = {1, 9, 5, 7, 1};
+ static const png_byte hinc[] = {1, 3, 11, 1, 5};
+ static const png_byte winc[] = {1, 9, 5, 7, 1};
+ const int save_bdlo = bdlo;
+
for (; bdlo <= bdhi; ++bdlo)
{
png_uint_32 h, w;
if (fail(pm))
return 0;
-# ifdef PNG_WRITE_INTERLACING_SUPPORTED
+ /* Now validate the interlaced read side - do_interlace true,
+ * in the progressive case this does actually make a difference
+ * to the code used in the non-interlaced case too.
+ */
standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
- PNG_INTERLACE_ADAM7, w, h, 0), 0/*do_interlace*/,
+ PNG_INTERLACE_NONE, w, h, 0), 1/*do_interlace*/,
pm->use_update_info);
if (fail(pm))
return 0;
+# if CAN_WRITE_INTERLACE
+ /* Validate the pngvalid code itself: */
standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
- PNG_INTERLACE_ADAM7, w, h, 1), 0/*do_interlace*/,
+ PNG_INTERLACE_ADAM7, w, h, 1), 1/*do_interlace*/,
pm->use_update_info);
if (fail(pm))
return 0;
# endif
+ }
+ }
- /* Now validate the interlaced read side - do_interlace true,
- * in the progressive case this does actually make a difference
- * to the code used in the non-interlaced case too.
+ /* Now do the tests of libpng interlace handling, after we have made sure
+ * that the pngvalid version works:
+ */
+ for (bdlo = save_bdlo; bdlo <= bdhi; ++bdlo)
+ {
+ png_uint_32 h, w;
+
+ for (h=1; h<=16; h+=hinc[bdlo]) for (w=1; w<=16; w+=winc[bdlo])
+ {
+# ifdef PNG_READ_INTERLACING_SUPPORTED
+ /* Test with pngvalid generated interlaced images first; we have
+ * already verify these are ok (unless pngvalid has self-consistent
+ * read/write errors, which is unlikely), so this detects errors in the
+ * read side first:
*/
+# if CAN_WRITE_INTERLACE
standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
- PNG_INTERLACE_NONE, w, h, 0), 1/*do_interlace*/,
+ PNG_INTERLACE_ADAM7, w, h, 1), 0/*do_interlace*/,
pm->use_update_info);
if (fail(pm))
return 0;
+# endif
+# endif /* READ_INTERLACING */
# ifdef PNG_WRITE_INTERLACING_SUPPORTED
+ /* Test the libpng write side against the pngvalid read side: */
standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
PNG_INTERLACE_ADAM7, w, h, 0), 1/*do_interlace*/,
pm->use_update_info);
if (fail(pm))
return 0;
# endif
+
+# ifdef PNG_READ_INTERLACING_SUPPORTED
+# ifdef PNG_WRITE_INTERLACING_SUPPORTED
+ /* Test both together: */
+ standard_test(&pm->this, FILEID(colour_type, DEPTH(bdlo), 0/*palette*/,
+ PNG_INTERLACE_ADAM7, w, h, 0), 0/*do_interlace*/,
+ pm->use_update_info);
+
+ if (fail(pm))
+ return 0;
+# endif
+# endif /* READ_INTERLACING */
}
}
*/
unsigned int red, green, blue, alpha; /* For non-palette images. */
unsigned int palette_index; /* For a palette image. */
- png_byte colour_type; /* As in the spec. */
- png_byte bit_depth; /* Defines bit size in row */
- png_byte sample_depth; /* Scale of samples */
- int have_tRNS; /* tRNS chunk may need processing */
+ png_byte colour_type; /* As in the spec. */
+ png_byte bit_depth; /* Defines bit size in row */
+ png_byte sample_depth; /* Scale of samples */
+ unsigned int have_tRNS :1; /* tRNS chunk may need processing */
+ unsigned int swap_rgb :1; /* RGB swapped to BGR */
+ unsigned int alpha_first :1; /* Alpha at start, not end */
+ unsigned int alpha_inverted :1; /* Alpha channel inverted */
+ unsigned int mono_inverted :1; /* Gray channel inverted */
+ unsigned int swap16 :1; /* Byte swap 16-bit components */
+ unsigned int littleendian :1; /* High bits on right */
+ unsigned int sig_bits :1; /* Pixel shifted (sig bits only) */
/* For checking the code calculates double precision floating point values
* along with an error value, accumulated from the transforms. Because an
* up to just less than +/-1 in the scaled value) the *lowest* sBIT for each
* channel is stored. This sBIT value is folded in to the stored error value
* at the end of the application of the transforms to the pixel.
+ *
+ * If sig_bits is set above the red, green, blue and alpha values have been
+ * scaled so they only contain the significant bits of the component values.
*/
double redf, greenf, bluef, alphaf;
double rede, greene, bluee, alphae;
/* Shared utility function, see below. */
static void
-image_pixel_setf(image_pixel *this, unsigned int max)
+image_pixel_setf(image_pixel *this, unsigned int rMax, unsigned int gMax,
+ unsigned int bMax, unsigned int aMax)
{
- this->redf = this->red / (double)max;
- this->greenf = this->green / (double)max;
- this->bluef = this->blue / (double)max;
- this->alphaf = this->alpha / (double)max;
+ this->redf = this->red / (double)rMax;
+ this->greenf = this->green / (double)gMax;
+ this->bluef = this->blue / (double)bMax;
+ this->alphaf = this->alpha / (double)aMax;
- if (this->red < max)
+ if (this->red < rMax)
this->rede = this->redf * DBL_EPSILON;
else
this->rede = 0;
- if (this->green < max)
+ if (this->green < gMax)
this->greene = this->greenf * DBL_EPSILON;
else
this->greene = 0;
- if (this->blue < max)
+ if (this->blue < bMax)
this->bluee = this->bluef * DBL_EPSILON;
else
this->bluee = 0;
- if (this->alpha < max)
+ if (this->alpha < aMax)
this->alphae = this->alphaf * DBL_EPSILON;
else
this->alphae = 0;
*/
static void
image_pixel_init(image_pixel *this, png_const_bytep row, png_byte colour_type,
- png_byte bit_depth, png_uint_32 x, store_palette palette)
+ png_byte bit_depth, png_uint_32 x, store_palette palette,
+ const image_pixel *format /*from pngvalid transform of input*/)
{
- PNG_CONST png_byte sample_depth = (png_byte)(colour_type ==
+ const png_byte sample_depth = (png_byte)(colour_type ==
PNG_COLOR_TYPE_PALETTE ? 8 : bit_depth);
- PNG_CONST unsigned int max = (1U<<sample_depth)-1;
+ const unsigned int max = (1U<<sample_depth)-1;
+ const int swap16 = (format != 0 && format->swap16);
+ const int littleendian = (format != 0 && format->littleendian);
+ const int sig_bits = (format != 0 && format->sig_bits);
/* Initially just set everything to the same number and the alpha to opaque.
* Note that this currently assumes a simple palette where entry x has colour
* rgb(x,x,x)!
*/
this->palette_index = this->red = this->green = this->blue =
- sample(row, colour_type, bit_depth, x, 0);
+ sample(row, colour_type, bit_depth, x, 0, swap16, littleendian);
this->alpha = max;
this->red_sBIT = this->green_sBIT = this->blue_sBIT = this->alpha_sBIT =
sample_depth;
/* This permits the caller to default to the sample value. */
if (palette != 0)
{
- PNG_CONST unsigned int i = this->palette_index;
+ const unsigned int i = this->palette_index;
this->red = palette[i].red;
this->green = palette[i].green;
{
unsigned int i = 0;
+ if ((colour_type & 4) != 0 && format != 0 && format->alpha_first)
+ {
+ this->alpha = this->red;
+ /* This handles the gray case for 'AG' pixels */
+ this->palette_index = this->red = this->green = this->blue =
+ sample(row, colour_type, bit_depth, x, 1, swap16, littleendian);
+ i = 1;
+ }
+
if (colour_type & 2)
{
- this->green = sample(row, colour_type, bit_depth, x, 1);
- this->blue = sample(row, colour_type, bit_depth, x, 2);
- i = 2;
+ /* Green is second for both BGR and RGB: */
+ this->green = sample(row, colour_type, bit_depth, x, ++i, swap16,
+ littleendian);
+
+ if (format != 0 && format->swap_rgb) /* BGR */
+ this->red = sample(row, colour_type, bit_depth, x, ++i, swap16,
+ littleendian);
+ else
+ this->blue = sample(row, colour_type, bit_depth, x, ++i, swap16,
+ littleendian);
+ }
+
+ else /* grayscale */ if (format != 0 && format->mono_inverted)
+ this->red = this->green = this->blue = this->red ^ max;
+
+ if ((colour_type & 4) != 0) /* alpha */
+ {
+ if (format == 0 || !format->alpha_first)
+ this->alpha = sample(row, colour_type, bit_depth, x, ++i, swap16,
+ littleendian);
+
+ if (format != 0 && format->alpha_inverted)
+ this->alpha ^= max;
}
- if (colour_type & 4)
- this->alpha = sample(row, colour_type, bit_depth, x, ++i);
}
/* Calculate the scaled values, these are simply the values divided by
* 'max' and the error is initialized to the double precision epsilon value
* from the header file.
*/
- image_pixel_setf(this, max);
+ image_pixel_setf(this,
+ sig_bits ? (1U << format->red_sBIT)-1 : max,
+ sig_bits ? (1U << format->green_sBIT)-1 : max,
+ sig_bits ? (1U << format->blue_sBIT)-1 : max,
+ sig_bits ? (1U << format->alpha_sBIT)-1 : max);
/* Store the input information for use in the transforms - these will
* modify the information.
this->bit_depth = bit_depth;
this->sample_depth = sample_depth;
this->have_tRNS = 0;
-}
-
+ this->swap_rgb = 0;
+ this->alpha_first = 0;
+ this->alpha_inverted = 0;
+ this->mono_inverted = 0;
+ this->swap16 = 0;
+ this->littleendian = 0;
+ this->sig_bits = 0;
+}
+
+#if defined PNG_READ_EXPAND_SUPPORTED || defined PNG_READ_GRAY_TO_RGB_SUPPORTED\
+ || defined PNG_READ_EXPAND_SUPPORTED || defined PNG_READ_EXPAND_16_SUPPORTED\
+ || defined PNG_READ_BACKGROUND_SUPPORTED
/* Convert a palette image to an rgb image. This necessarily converts the tRNS
* chunk at the same time, because the tRNS will be in palette form. The way
* palette validation works means that the original palette is never updated,
/* Add an alpha channel; this will import the tRNS information because tRNS is
* not valid in an alpha image. The bit depth will invariably be set to at
- * least 8. Palette images will be converted to alpha (using the above API).
+ * least 8 prior to 1.7.0. Palette images will be converted to alpha (using
+ * the above API). With png_set_background the alpha channel is never expanded
+ * but this routine is used by pngvalid to simplify code; 'for_background'
+ * records this.
*/
static void
-image_pixel_add_alpha(image_pixel *this, PNG_CONST standard_display *display)
+image_pixel_add_alpha(image_pixel *this, const standard_display *display,
+ int for_background)
{
if (this->colour_type == PNG_COLOR_TYPE_PALETTE)
image_pixel_convert_PLTE(this);
{
if (this->colour_type == PNG_COLOR_TYPE_GRAY)
{
- if (this->bit_depth < 8)
- this->bit_depth = 8;
+# if PNG_LIBPNG_VER < 10700
+ if (!for_background && this->bit_depth < 8)
+ this->bit_depth = this->sample_depth = 8;
+# endif
if (this->have_tRNS)
{
+ /* After 1.7 the expansion of bit depth only happens if there is a
+ * tRNS chunk to expand at this point.
+ */
+# if PNG_LIBPNG_VER >= 10700
+ if (!for_background && this->bit_depth < 8)
+ this->bit_depth = this->sample_depth = 8;
+# endif
+
this->have_tRNS = 0;
/* Check the input, original, channel value here against the
this->alphaf = 0;
else
this->alphaf = 1;
-
- this->colour_type = PNG_COLOR_TYPE_RGB_ALPHA;
}
+ else
+ this->alphaf = 1;
+
+ this->colour_type = PNG_COLOR_TYPE_RGB_ALPHA;
}
/* The error in the alpha is zero and the sBIT value comes from the
this->alpha_sBIT = display->alpha_sBIT;
}
}
+#endif /* transforms that need image_pixel_add_alpha */
struct transform_display;
typedef struct image_transform
{
/* The name of this transform: a string. */
- PNG_CONST char *name;
+ const char *name;
/* Each transform can be disabled from the command line: */
int enable;
/* The global list of transforms; read only. */
- struct image_transform *PNG_CONST list;
+ struct image_transform *const list;
/* The global count of the number of times this transform has been set on an
* image.
/* The next transform in the list, each transform must call its own next
* transform after it has processed the pixel successfully.
*/
- PNG_CONST struct image_transform *next;
+ const struct image_transform *next;
/* A single transform for the image, expressed as a series of function
* callbacks and some space for values.
* First a callback to add any required modifications to the png_modifier;
* this gets called just before the modifier is set up for read.
*/
- void (*ini)(PNG_CONST struct image_transform *this,
+ void (*ini)(const struct image_transform *this,
struct transform_display *that);
/* And a callback to set the transform on the current png_read_struct:
*/
- void (*set)(PNG_CONST struct image_transform *this,
+ void (*set)(const struct image_transform *this,
struct transform_display *that, png_structp pp, png_infop pi);
/* Then a transform that takes an input pixel in one PNG format or another
* in the libpng implementation!) The png_structp is solely to allow error
* reporting via png_error and png_warning.
*/
- void (*mod)(PNG_CONST struct image_transform *this, image_pixel *that,
- png_const_structp pp, PNG_CONST struct transform_display *display);
+ void (*mod)(const struct image_transform *this, image_pixel *that,
+ png_const_structp pp, const struct transform_display *display);
/* Add this transform to the list and return true if the transform is
* meaningful for this colour type and bit depth - if false then the
* point running it.
*/
int (*add)(struct image_transform *this,
- PNG_CONST struct image_transform **that, png_byte colour_type,
+ const struct image_transform **that, png_byte colour_type,
png_byte bit_depth);
} image_transform;
/* Parameters */
png_modifier* pm;
- PNG_CONST image_transform* transform_list;
+ const image_transform* transform_list;
+ unsigned int max_gamma_8;
/* Local variables */
png_byte output_colour_type;
png_byte output_bit_depth;
+ png_byte unpacked;
/* Modifications (not necessarily used.) */
gama_modification gama_mod;
/* Three functions to end the list: */
static void
-image_transform_ini_end(PNG_CONST image_transform *this,
+image_transform_ini_end(const image_transform *this,
transform_display *that)
{
UNUSED(this)
}
static void
-image_transform_set_end(PNG_CONST image_transform *this,
+image_transform_set_end(const image_transform *this,
transform_display *that, png_structp pp, png_infop pi)
{
UNUSED(this)
}
static void
-image_transform_mod_end(PNG_CONST image_transform *this, image_pixel *that,
- png_const_structp pp, PNG_CONST transform_display *display)
+image_transform_mod_end(const image_transform *this, image_pixel *that,
+ png_const_structp pp, const transform_display *display)
{
- PNG_CONST unsigned int scale = (1U<<that->sample_depth)-1;
+ const unsigned int scale = (1U<<that->sample_depth)-1;
+ const int sig_bits = that->sig_bits;
UNUSED(this)
UNUSED(pp)
*/
that->red = sample_scale(that->redf, scale);
+ /* This is a bit bogus; really the above calculation should use the red_sBIT
+ * value, not sample_depth, but because libpng does png_set_shift by just
+ * shifting the bits we get errors if we don't do it the same way.
+ */
+ if (sig_bits && that->red_sBIT < that->sample_depth)
+ that->red >>= that->sample_depth - that->red_sBIT;
+
/* The error value is increased, at the end, according to the lowest sBIT
* value seen. Common sense tells us that the intermediate integer
* representations are no more accurate than +/- 0.5 in the integral values,
if (that->colour_type & PNG_COLOR_MASK_COLOR)
{
that->green = sample_scale(that->greenf, scale);
+ if (sig_bits && that->green_sBIT < that->sample_depth)
+ that->green >>= that->sample_depth - that->green_sBIT;
+
that->blue = sample_scale(that->bluef, scale);
+ if (sig_bits && that->blue_sBIT < that->sample_depth)
+ that->blue >>= that->sample_depth - that->blue_sBIT;
+
that->greene += 1./(2*((1U<<that->green_sBIT)-1));
that->bluee += 1./(2*((1U<<that->blue_sBIT)-1));
}
else
{
that->alpha = scale; /* opaque */
- that->alpha = 1; /* Override this. */
+ that->alphaf = 1; /* Override this. */
that->alphae = 0; /* It's exact ;-) */
}
+
+ if (sig_bits && that->alpha_sBIT < that->sample_depth)
+ that->alpha >>= that->sample_depth - that->alpha_sBIT;
}
/* Static 'end' structure: */
*/
static void
transform_display_init(transform_display *dp, png_modifier *pm, png_uint_32 id,
- PNG_CONST image_transform *transform_list)
+ const image_transform *transform_list)
{
memset(dp, 0, sizeof *dp);
/* Standard fields */
- standard_display_init(&dp->this, &pm->this, id, 0/*do_interlace*/,
+ standard_display_init(&dp->this, &pm->this, id, do_read_interlace,
pm->use_update_info);
/* Parameter fields */
dp->pm = pm;
dp->transform_list = transform_list;
+ dp->max_gamma_8 = 16;
/* Local variable fields */
dp->output_colour_type = 255; /* invalid */
dp->output_bit_depth = 255; /* invalid */
+ dp->unpacked = 0; /* not unpacked */
}
static void
dp->output_colour_type = png_get_color_type(pp, pi);
dp->output_bit_depth = png_get_bit_depth(pp, pi);
+ /* If png_set_filler is in action then fake the output color type to include
+ * an alpha channel where appropriate.
+ */
+ if (dp->output_bit_depth >= 8 &&
+ (dp->output_colour_type == PNG_COLOR_TYPE_RGB ||
+ dp->output_colour_type == PNG_COLOR_TYPE_GRAY) && dp->this.filler)
+ dp->output_colour_type |= 4;
+
/* Validate the combination of colour type and bit depth that we are getting
* out of libpng; the semantics of something not in the PNG spec are, at
* best, unclear.
}
/* Use a test pixel to check that the output agrees with what we expect -
- * this avoids running the whole test if the output is unexpected.
+ * this avoids running the whole test if the output is unexpected. This also
+ * checks for internal errors.
*/
{
image_pixel test_pixel;
/* Don't need sBIT here, but it must be set to non-zero to avoid
* arithmetic overflows.
*/
- test_pixel.have_tRNS = dp->this.is_transparent;
+ test_pixel.have_tRNS = dp->this.is_transparent != 0;
test_pixel.red_sBIT = test_pixel.green_sBIT = test_pixel.blue_sBIT =
test_pixel.alpha_sBIT = test_pixel.sample_depth;
}
/* If both bit depth and colour type are correct check the sample depth.
- * I believe these are both internal errors.
*/
- if (test_pixel.colour_type == PNG_COLOR_TYPE_PALETTE)
+ if (test_pixel.colour_type == PNG_COLOR_TYPE_PALETTE &&
+ test_pixel.sample_depth != 8) /* oops - internal error! */
+ png_error(pp, "pngvalid: internal: palette sample depth not 8");
+ else if (dp->unpacked && test_pixel.bit_depth != 8)
+ png_error(pp, "pngvalid: internal: bad unpacked pixel depth");
+ else if (!dp->unpacked && test_pixel.colour_type != PNG_COLOR_TYPE_PALETTE
+ && test_pixel.bit_depth != test_pixel.sample_depth)
{
- if (test_pixel.sample_depth != 8) /* oops - internal error! */
- png_error(pp, "pngvalid: internal: palette sample depth not 8");
+ char message[128];
+ size_t pos = safecat(message, sizeof message, 0,
+ "internal: sample depth ");
+
+ /* Because unless something has set 'unpacked' or the image is palette
+ * mapped we expect the transform to keep sample depth and bit depth
+ * the same.
+ */
+ pos = safecatn(message, sizeof message, pos, test_pixel.sample_depth);
+ pos = safecat(message, sizeof message, pos, " expected ");
+ pos = safecatn(message, sizeof message, pos, test_pixel.bit_depth);
+
+ png_error(pp, message);
}
- else if (test_pixel.sample_depth != dp->output_bit_depth)
+ else if (test_pixel.bit_depth != dp->output_bit_depth)
{
+ /* This could be a libpng error too; libpng has not produced what we
+ * expect for the output bit depth.
+ */
char message[128];
size_t pos = safecat(message, sizeof message, 0,
- "internal: sample depth ");
+ "internal: bit depth ");
pos = safecatn(message, sizeof message, pos, dp->output_bit_depth);
pos = safecat(message, sizeof message, pos, " expected ");
- pos = safecatn(message, sizeof message, pos, test_pixel.sample_depth);
+ pos = safecatn(message, sizeof message, pos, test_pixel.bit_depth);
png_error(pp, message);
}
transform_range_check(png_const_structp pp, unsigned int r, unsigned int g,
unsigned int b, unsigned int a, unsigned int in_digitized, double in,
unsigned int out, png_byte sample_depth, double err, double limit,
- PNG_CONST char *name, double digitization_error)
+ const char *name, double digitization_error)
{
/* Compare the scaled, digitzed, values of our local calculation (in+-err)
* with the digitized values libpng produced; 'sample_depth' is the actual
unsigned int max = (1U<<sample_depth)-1;
double in_min = ceil((in-err)*max - digitization_error);
double in_max = floor((in+err)*max + digitization_error);
- if (err > limit || !(out >= in_min && out <= in_max))
+ if (debugonly(err > limit ||) !(out >= in_min && out <= in_max))
{
char message[256];
size_t pos;
png_error(pp, message);
}
+
+ UNUSED(limit)
}
static void
png_infop pi)
{
/* Constants for the loop below: */
- PNG_CONST png_store* PNG_CONST ps = dp->this.ps;
- PNG_CONST png_byte in_ct = dp->this.colour_type;
- PNG_CONST png_byte in_bd = dp->this.bit_depth;
- PNG_CONST png_uint_32 w = dp->this.w;
- PNG_CONST png_uint_32 h = dp->this.h;
- PNG_CONST png_byte out_ct = dp->output_colour_type;
- PNG_CONST png_byte out_bd = dp->output_bit_depth;
- PNG_CONST png_byte sample_depth = (png_byte)(out_ct ==
+ const png_store* const ps = dp->this.ps;
+ const png_byte in_ct = dp->this.colour_type;
+ const png_byte in_bd = dp->this.bit_depth;
+ const png_uint_32 w = dp->this.w;
+ const png_uint_32 h = dp->this.h;
+ const png_byte out_ct = dp->output_colour_type;
+ const png_byte out_bd = dp->output_bit_depth;
+ const png_byte sample_depth = (png_byte)(out_ct ==
PNG_COLOR_TYPE_PALETTE ? 8 : out_bd);
- PNG_CONST png_byte red_sBIT = dp->this.red_sBIT;
- PNG_CONST png_byte green_sBIT = dp->this.green_sBIT;
- PNG_CONST png_byte blue_sBIT = dp->this.blue_sBIT;
- PNG_CONST png_byte alpha_sBIT = dp->this.alpha_sBIT;
- PNG_CONST int have_tRNS = dp->this.is_transparent;
+ const png_byte red_sBIT = dp->this.red_sBIT;
+ const png_byte green_sBIT = dp->this.green_sBIT;
+ const png_byte blue_sBIT = dp->this.blue_sBIT;
+ const png_byte alpha_sBIT = dp->this.alpha_sBIT;
+ const int have_tRNS = dp->this.is_transparent;
double digitization_error;
store_palette out_palette;
for (y=0; y<h; ++y)
{
- png_const_bytep PNG_CONST pRow = store_image_row(ps, pp, 0, y);
+ png_const_bytep const pRow = store_image_row(ps, pp, 0, y);
png_uint_32 x;
/* The original, standard, row pre-transforms. */
unsigned int r, g, b, a;
/* Find out what we think the pixel should be: */
- image_pixel_init(&in_pixel, std, in_ct, in_bd, x, dp->this.palette);
+ image_pixel_init(&in_pixel, std, in_ct, in_bd, x, dp->this.palette,
+ NULL);
in_pixel.red_sBIT = red_sBIT;
in_pixel.green_sBIT = green_sBIT;
in_pixel.blue_sBIT = blue_sBIT;
in_pixel.alpha_sBIT = alpha_sBIT;
- in_pixel.have_tRNS = have_tRNS;
+ in_pixel.have_tRNS = have_tRNS != 0;
/* For error detection, below. */
r = in_pixel.red;
b = in_pixel.blue;
a = in_pixel.alpha;
+ /* This applies the transforms to the input data, including output
+ * format operations which must be used when reading the output
+ * pixel that libpng produces.
+ */
dp->transform_list->mod(dp->transform_list, &in_pixel, pp, dp);
/* Read the output pixel and compare it to what we got, we don't
- * use the error field here, so no need to update sBIT.
+ * use the error field here, so no need to update sBIT. in_pixel
+ * says whether we expect libpng to change the output format.
*/
- image_pixel_init(&out_pixel, pRow, out_ct, out_bd, x, out_palette);
+ image_pixel_init(&out_pixel, pRow, out_ct, out_bd, x, out_palette,
+ &in_pixel);
/* We don't expect changes to the index here even if the bit depth is
* changed.
/* A single test run. */
static void
-transform_test(png_modifier *pmIn, PNG_CONST png_uint_32 idIn,
- PNG_CONST image_transform* transform_listIn, PNG_CONST char * volatile name)
+transform_test(png_modifier *pmIn, const png_uint_32 idIn,
+ const image_transform* transform_listIn, const char * const name)
{
transform_display d;
context(&pmIn->this, fault);
#define PT ITSTRUCT(end) /* stores the previous transform */
/* To save code: */
-static void
-image_transform_default_ini(PNG_CONST image_transform *this,
+extern void image_transform_default_ini(const image_transform *this,
+ transform_display *that); /* silence GCC warnings */
+
+void /* private, but almost always needed */
+image_transform_default_ini(const image_transform *this,
transform_display *that)
{
this->next->ini(this->next, that);
#ifdef PNG_READ_BACKGROUND_SUPPORTED
static int
image_transform_default_add(image_transform *this,
- PNG_CONST image_transform **that, png_byte colour_type, png_byte bit_depth)
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
{
UNUSED(colour_type)
UNUSED(bit_depth)
#ifdef PNG_READ_EXPAND_SUPPORTED
/* png_set_palette_to_rgb */
static void
-image_transform_png_set_palette_to_rgb_set(PNG_CONST image_transform *this,
+image_transform_png_set_palette_to_rgb_set(const image_transform *this,
transform_display *that, png_structp pp, png_infop pi)
{
png_set_palette_to_rgb(pp);
}
static void
-image_transform_png_set_palette_to_rgb_mod(PNG_CONST image_transform *this,
+image_transform_png_set_palette_to_rgb_mod(const image_transform *this,
image_pixel *that, png_const_structp pp,
- PNG_CONST transform_display *display)
+ const transform_display *display)
{
if (that->colour_type == PNG_COLOR_TYPE_PALETTE)
image_pixel_convert_PLTE(that);
static int
image_transform_png_set_palette_to_rgb_add(image_transform *this,
- PNG_CONST image_transform **that, png_byte colour_type, png_byte bit_depth)
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
{
UNUSED(bit_depth)
#ifdef PNG_READ_EXPAND_SUPPORTED
/* png_set_tRNS_to_alpha */
static void
-image_transform_png_set_tRNS_to_alpha_set(PNG_CONST image_transform *this,
+image_transform_png_set_tRNS_to_alpha_set(const image_transform *this,
transform_display *that, png_structp pp, png_infop pi)
{
png_set_tRNS_to_alpha(pp);
+
+ /* If there was a tRNS chunk that would get expanded and add an alpha
+ * channel is_transparent must be updated:
+ */
+ if (that->this.has_tRNS)
+ that->this.is_transparent = 1;
+
this->next->set(this->next, that, pp, pi);
}
static void
-image_transform_png_set_tRNS_to_alpha_mod(PNG_CONST image_transform *this,
+image_transform_png_set_tRNS_to_alpha_mod(const image_transform *this,
image_pixel *that, png_const_structp pp,
- PNG_CONST transform_display *display)
+ const transform_display *display)
{
+#if PNG_LIBPNG_VER < 10700
/* LIBPNG BUG: this always forces palette images to RGB. */
if (that->colour_type == PNG_COLOR_TYPE_PALETTE)
image_pixel_convert_PLTE(that);
+#endif
/* This effectively does an 'expand' only if there is some transparency to
* convert to an alpha channel.
*/
if (that->have_tRNS)
- image_pixel_add_alpha(that, &display->this);
+# if PNG_LIBPNG_VER >= 10700
+ if (that->colour_type != PNG_COLOR_TYPE_PALETTE &&
+ (that->colour_type & PNG_COLOR_MASK_ALPHA) == 0)
+# endif
+ image_pixel_add_alpha(that, &display->this, 0/*!for background*/);
+#if PNG_LIBPNG_VER < 10700
/* LIBPNG BUG: otherwise libpng still expands to 8 bits! */
else
{
if (that->sample_depth < 8)
that->sample_depth = 8;
}
+#endif
this->next->mod(this->next, that, pp, display);
}
static int
image_transform_png_set_tRNS_to_alpha_add(image_transform *this,
- PNG_CONST image_transform **that, png_byte colour_type, png_byte bit_depth)
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
{
UNUSED(bit_depth)
/* We don't know yet whether there will be a tRNS chunk, but we know that
* this transformation should do nothing if there already is an alpha
- * channel.
+ * channel. In addition, after the bug fix in 1.7.0, there is no longer
+ * any action on a palette image.
*/
- return (colour_type & PNG_COLOR_MASK_ALPHA) == 0;
+ return
+# if PNG_LIBPNG_VER >= 10700
+ colour_type != PNG_COLOR_TYPE_PALETTE &&
+# endif
+ (colour_type & PNG_COLOR_MASK_ALPHA) == 0;
}
IT(tRNS_to_alpha);
#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
/* png_set_gray_to_rgb */
static void
-image_transform_png_set_gray_to_rgb_set(PNG_CONST image_transform *this,
+image_transform_png_set_gray_to_rgb_set(const image_transform *this,
transform_display *that, png_structp pp, png_infop pi)
{
png_set_gray_to_rgb(pp);
+ /* NOTE: this doesn't result in tRNS expansion. */
this->next->set(this->next, that, pp, pi);
}
static void
-image_transform_png_set_gray_to_rgb_mod(PNG_CONST image_transform *this,
+image_transform_png_set_gray_to_rgb_mod(const image_transform *this,
image_pixel *that, png_const_structp pp,
- PNG_CONST transform_display *display)
+ const transform_display *display)
{
/* NOTE: we can actually pend the tRNS processing at this point because we
* can correctly recognize the original pixel value even though we have
* doesn't do this, so we don't either.
*/
if ((that->colour_type & PNG_COLOR_MASK_COLOR) == 0 && that->have_tRNS)
- image_pixel_add_alpha(that, &display->this);
+ image_pixel_add_alpha(that, &display->this, 0/*!for background*/);
/* Simply expand the bit depth and alter the colour type as required. */
if (that->colour_type == PNG_COLOR_TYPE_GRAY)
static int
image_transform_png_set_gray_to_rgb_add(image_transform *this,
- PNG_CONST image_transform **that, png_byte colour_type, png_byte bit_depth)
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
{
UNUSED(bit_depth)
#ifdef PNG_READ_EXPAND_SUPPORTED
/* png_set_expand */
static void
-image_transform_png_set_expand_set(PNG_CONST image_transform *this,
+image_transform_png_set_expand_set(const image_transform *this,
transform_display *that, png_structp pp, png_infop pi)
{
png_set_expand(pp);
+
+ if (that->this.has_tRNS)
+ that->this.is_transparent = 1;
+
this->next->set(this->next, that, pp, pi);
}
static void
-image_transform_png_set_expand_mod(PNG_CONST image_transform *this,
+image_transform_png_set_expand_mod(const image_transform *this,
image_pixel *that, png_const_structp pp,
- PNG_CONST transform_display *display)
+ const transform_display *display)
{
/* The general expand case depends on what the colour type is: */
if (that->colour_type == PNG_COLOR_TYPE_PALETTE)
that->sample_depth = that->bit_depth = 8;
if (that->have_tRNS)
- image_pixel_add_alpha(that, &display->this);
+ image_pixel_add_alpha(that, &display->this, 0/*!for background*/);
this->next->mod(this->next, that, pp, display);
}
static int
image_transform_png_set_expand_add(image_transform *this,
- PNG_CONST image_transform **that, png_byte colour_type, png_byte bit_depth)
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
{
UNUSED(bit_depth)
#ifdef PNG_READ_EXPAND_SUPPORTED
/* png_set_expand_gray_1_2_4_to_8
- * LIBPNG BUG: this just does an 'expand'
+ * Pre 1.7.0 LIBPNG BUG: this just does an 'expand'
*/
static void
image_transform_png_set_expand_gray_1_2_4_to_8_set(
- PNG_CONST image_transform *this, transform_display *that, png_structp pp,
+ const image_transform *this, transform_display *that, png_structp pp,
png_infop pi)
{
png_set_expand_gray_1_2_4_to_8(pp);
+ /* NOTE: don't expect this to expand tRNS */
this->next->set(this->next, that, pp, pi);
}
static void
image_transform_png_set_expand_gray_1_2_4_to_8_mod(
- PNG_CONST image_transform *this, image_pixel *that, png_const_structp pp,
- PNG_CONST transform_display *display)
+ const image_transform *this, image_pixel *that, png_const_structp pp,
+ const transform_display *display)
{
+#if PNG_LIBPNG_VER < 10700
image_transform_png_set_expand_mod(this, that, pp, display);
+#else
+ /* Only expand grayscale of bit depth less than 8: */
+ if (that->colour_type == PNG_COLOR_TYPE_GRAY &&
+ that->bit_depth < 8)
+ that->sample_depth = that->bit_depth = 8;
+
+ this->next->mod(this->next, that, pp, display);
+#endif /* 1.7 or later */
}
static int
image_transform_png_set_expand_gray_1_2_4_to_8_add(image_transform *this,
- PNG_CONST image_transform **that, png_byte colour_type, png_byte bit_depth)
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
{
+#if PNG_LIBPNG_VER < 10700
return image_transform_png_set_expand_add(this, that, colour_type,
bit_depth);
+#else
+ UNUSED(bit_depth)
+
+ this->next = *that;
+ *that = this;
+
+ /* This should do nothing unless the color type is gray and the bit depth is
+ * less than 8:
+ */
+ return colour_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8;
+#endif /* 1.7 or later */
}
IT(expand_gray_1_2_4_to_8);
#ifdef PNG_READ_EXPAND_16_SUPPORTED
/* png_set_expand_16 */
static void
-image_transform_png_set_expand_16_set(PNG_CONST image_transform *this,
+image_transform_png_set_expand_16_set(const image_transform *this,
transform_display *that, png_structp pp, png_infop pi)
{
png_set_expand_16(pp);
+
+ /* NOTE: prior to 1.7 libpng does SET_EXPAND as well, so tRNS is expanded. */
+# if PNG_LIBPNG_VER < 10700
+ if (that->this.has_tRNS)
+ that->this.is_transparent = 1;
+# endif
+
this->next->set(this->next, that, pp, pi);
}
static void
-image_transform_png_set_expand_16_mod(PNG_CONST image_transform *this,
+image_transform_png_set_expand_16_mod(const image_transform *this,
image_pixel *that, png_const_structp pp,
- PNG_CONST transform_display *display)
+ const transform_display *display)
{
/* Expect expand_16 to expand everything to 16 bits as a result of also
* causing 'expand' to happen.
image_pixel_convert_PLTE(that);
if (that->have_tRNS)
- image_pixel_add_alpha(that, &display->this);
+ image_pixel_add_alpha(that, &display->this, 0/*!for background*/);
if (that->bit_depth < 16)
that->sample_depth = that->bit_depth = 16;
static int
image_transform_png_set_expand_16_add(image_transform *this,
- PNG_CONST image_transform **that, png_byte colour_type, png_byte bit_depth)
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
{
UNUSED(colour_type)
#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED /* API added in 1.5.4 */
/* png_set_scale_16 */
static void
-image_transform_png_set_scale_16_set(PNG_CONST image_transform *this,
+image_transform_png_set_scale_16_set(const image_transform *this,
transform_display *that, png_structp pp, png_infop pi)
{
png_set_scale_16(pp);
+# if PNG_LIBPNG_VER < 10700
+ /* libpng will limit the gamma table size: */
+ that->max_gamma_8 = PNG_MAX_GAMMA_8;
+# endif
this->next->set(this->next, that, pp, pi);
}
static void
-image_transform_png_set_scale_16_mod(PNG_CONST image_transform *this,
+image_transform_png_set_scale_16_mod(const image_transform *this,
image_pixel *that, png_const_structp pp,
- PNG_CONST transform_display *display)
+ const transform_display *display)
{
if (that->bit_depth == 16)
{
static int
image_transform_png_set_scale_16_add(image_transform *this,
- PNG_CONST image_transform **that, png_byte colour_type, png_byte bit_depth)
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
{
UNUSED(colour_type)
#ifdef PNG_READ_16_TO_8_SUPPORTED /* the default before 1.5.4 */
/* png_set_strip_16 */
static void
-image_transform_png_set_strip_16_set(PNG_CONST image_transform *this,
+image_transform_png_set_strip_16_set(const image_transform *this,
transform_display *that, png_structp pp, png_infop pi)
{
png_set_strip_16(pp);
+# if PNG_LIBPNG_VER < 10700
+ /* libpng will limit the gamma table size: */
+ that->max_gamma_8 = PNG_MAX_GAMMA_8;
+# endif
this->next->set(this->next, that, pp, pi);
}
static void
-image_transform_png_set_strip_16_mod(PNG_CONST image_transform *this,
+image_transform_png_set_strip_16_mod(const image_transform *this,
image_pixel *that, png_const_structp pp,
- PNG_CONST transform_display *display)
+ const transform_display *display)
{
if (that->bit_depth == 16)
{
* png_set_scale_16 API in 1.5.4 (but 1.5.4+ always defines the above!)
*/
{
- PNG_CONST double d = (255-128.5)/65535;
+ const double d = (255-128.5)/65535;
that->rede += d;
that->greene += d;
that->bluee += d;
static int
image_transform_png_set_strip_16_add(image_transform *this,
- PNG_CONST image_transform **that, png_byte colour_type, png_byte bit_depth)
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
{
UNUSED(colour_type)
#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
/* png_set_strip_alpha */
static void
-image_transform_png_set_strip_alpha_set(PNG_CONST image_transform *this,
+image_transform_png_set_strip_alpha_set(const image_transform *this,
transform_display *that, png_structp pp, png_infop pi)
{
png_set_strip_alpha(pp);
}
static void
-image_transform_png_set_strip_alpha_mod(PNG_CONST image_transform *this,
+image_transform_png_set_strip_alpha_mod(const image_transform *this,
image_pixel *that, png_const_structp pp,
- PNG_CONST transform_display *display)
+ const transform_display *display)
{
if (that->colour_type == PNG_COLOR_TYPE_GRAY_ALPHA)
that->colour_type = PNG_COLOR_TYPE_GRAY;
static int
image_transform_png_set_strip_alpha_add(image_transform *this,
- PNG_CONST image_transform **that, png_byte colour_type, png_byte bit_depth)
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
{
UNUSED(bit_depth)
* png_fixed_point green)
* png_get_rgb_to_gray_status
*
- * The 'default' test here uses values known to be used inside libpng:
+ * The 'default' test here uses values known to be used inside libpng prior to
+ * 1.7.0:
*
* red: 6968
* green: 23434
#undef image_transform_ini
#define image_transform_ini image_transform_png_set_rgb_to_gray_ini
static void
-image_transform_png_set_rgb_to_gray_ini(PNG_CONST image_transform *this,
+image_transform_png_set_rgb_to_gray_ini(const image_transform *this,
transform_display *that)
{
png_modifier *pm = that->pm;
- PNG_CONST color_encoding *e = pm->current_encoding;
+ const color_encoding *e = pm->current_encoding;
UNUSED(this)
/* Coefficients come from the encoding, but may need to be normalized to a
* white point Y of 1.0
*/
- PNG_CONST double whiteY = e->red.Y + e->green.Y + e->blue.Y;
+ const double whiteY = e->red.Y + e->green.Y + e->blue.Y;
data.red_coefficient = e->red.Y;
data.green_coefficient = e->green.Y;
else
{
/* The default (built in) coeffcients, as above: */
- data.red_coefficient = 6968 / 32768.;
- data.green_coefficient = 23434 / 32768.;
- data.blue_coefficient = 2366 / 32768.;
+# if PNG_LIBPNG_VER < 10700
+ data.red_coefficient = 6968 / 32768.;
+ data.green_coefficient = 23434 / 32768.;
+ data.blue_coefficient = 2366 / 32768.;
+# else
+ data.red_coefficient = .2126;
+ data.green_coefficient = .7152;
+ data.blue_coefficient = .0722;
+# endif
}
data.gamma = pm->current_gamma;
png_uint_32 ru;
double total;
- RANDOMIZE(ru);
+ R32(ru);
data.green_coefficient = total = (ru & 0xffff) / 65535.;
ru >>= 16;
data.red_coefficient = (1 - total) * (ru & 0xffff) / 65535.;
* conversion adds another +/-2 in the 16-bit case and
* +/-(1<<(15-PNG_MAX_GAMMA_8)) in the 8-bit case.
*/
- that->pm->limit +=
-# if PNG_MAX_GAMMA_8 < 14
- pow((that->this.bit_depth == 16 ?
- 8. : 6. + (1<<(15-PNG_MAX_GAMMA_8)))/65535, data.gamma);
-# else
- pow((that->this.bit_depth == 16 ?
- 8. : 8. + (1<<(15-PNG_MAX_GAMMA_8)))/65535, data.gamma);
+# if PNG_LIBPNG_VER < 10700
+ if (that->this.bit_depth < 16)
+ that->max_gamma_8 = PNG_MAX_GAMMA_8;
# endif
+ that->pm->limit += pow(
+ (that->this.bit_depth == 16 || that->max_gamma_8 > 14 ?
+ 8. :
+ 6. + (1<<(15-that->max_gamma_8))
+ )/65535, data.gamma);
}
else
* When DIGITIZE is set because a pre-1.7 version of libpng is being
* tested allow a bigger slack.
*
- * NOTE: this magic number was determined by experiment to be 1.1 (when
- * using fixed point arithmetic). There's no great merit to the value
- * below, however it only affects the limit used for checking for
- * internal calculation errors, not the actual limit imposed by
- * pngvalid on the output errors.
+ * NOTE: this number only affects the internal limit check in pngvalid,
+ * it has no effect on the limits applied to the libpng values.
*/
- that->pm->limit +=
+ that->pm->limit += pow(
# if DIGITIZE
- pow(1.1 /255, data.gamma);
+ 2.0
# else
- pow(1.0 /255, data.gamma);
+ 1.0
# endif
+ /255, data.gamma);
}
}
}
static void
-image_transform_png_set_rgb_to_gray_set(PNG_CONST image_transform *this,
+image_transform_png_set_rgb_to_gray_set(const image_transform *this,
transform_display *that, png_structp pp, png_infop pi)
{
- PNG_CONST int error_action = 1; /* no error, no defines in png.h */
+ const int error_action = 1; /* no error, no defines in png.h */
# ifdef PNG_FLOATING_POINT_SUPPORTED
png_set_rgb_to_gray(pp, error_action, data.red_to_set, data.green_to_set);
& PNG_INFO_cHRM) != 0)
{
double maxe;
- PNG_CONST char *el;
+ const char *el;
color_encoding e, o;
/* Expect libpng to return a normalized result, but the original
}
static void
-image_transform_png_set_rgb_to_gray_mod(PNG_CONST image_transform *this,
+image_transform_png_set_rgb_to_gray_mod(const image_transform *this,
image_pixel *that, png_const_structp pp,
- PNG_CONST transform_display *display)
+ const transform_display *display)
{
if ((that->colour_type & PNG_COLOR_MASK_COLOR) != 0)
{
double gray, err;
- if (that->colour_type == PNG_COLOR_TYPE_PALETTE)
- image_pixel_convert_PLTE(that);
+# if PNG_LIBPNG_VER < 10700
+ if (that->colour_type == PNG_COLOR_TYPE_PALETTE)
+ image_pixel_convert_PLTE(that);
+# endif
/* Image now has RGB channels... */
# if DIGITIZE
{
- PNG_CONST png_modifier *pm = display->pm;
+ png_modifier *pm = display->pm;
const unsigned int sample_depth = that->sample_depth;
const unsigned int calc_depth = (pm->assume_16_bit_calculations ? 16 :
sample_depth);
- const unsigned int gamma_depth = (sample_depth == 16 ? 16 :
- (pm->assume_16_bit_calculations ? PNG_MAX_GAMMA_8 : sample_depth));
+ const unsigned int gamma_depth =
+ (sample_depth == 16 ?
+ display->max_gamma_8 :
+ (pm->assume_16_bit_calculations ?
+ display->max_gamma_8 :
+ sample_depth));
int isgray;
double r, g, b;
double rlo, rhi, glo, ghi, blo, bhi, graylo, grayhi;
* will be identical after this operation if there is only one
* transform, feel free to delete the png_error checks on this below in
* the future (this is just me trying to ensure it works!)
+ *
+ * Interval arithmetic is exact, but to implement it it must be
+ * possible to control the floating point implementation rounding mode.
+ * This cannot be done in ANSI-C, so instead I reduce the 'lo' values
+ * by DBL_EPSILON and increase the 'hi' values by the same.
*/
+# define DD(v,d,r) (digitize(v*(1-DBL_EPSILON), d, r) * (1-DBL_EPSILON))
+# define DU(v,d,r) (digitize(v*(1+DBL_EPSILON), d, r) * (1+DBL_EPSILON))
+
r = rlo = rhi = that->redf;
rlo -= that->rede;
- rlo = digitize(rlo, calc_depth, 1/*round*/);
+ rlo = DD(rlo, calc_depth, 1/*round*/);
rhi += that->rede;
- rhi = digitize(rhi, calc_depth, 1/*round*/);
+ rhi = DU(rhi, calc_depth, 1/*round*/);
g = glo = ghi = that->greenf;
glo -= that->greene;
- glo = digitize(glo, calc_depth, 1/*round*/);
+ glo = DD(glo, calc_depth, 1/*round*/);
ghi += that->greene;
- ghi = digitize(ghi, calc_depth, 1/*round*/);
+ ghi = DU(ghi, calc_depth, 1/*round*/);
b = blo = bhi = that->bluef;
blo -= that->bluee;
- blo = digitize(blo, calc_depth, 1/*round*/);
- bhi += that->greene;
- bhi = digitize(bhi, calc_depth, 1/*round*/);
+ blo = DD(blo, calc_depth, 1/*round*/);
+ bhi += that->bluee;
+ bhi = DU(bhi, calc_depth, 1/*round*/);
isgray = r==g && g==b;
if (data.gamma != 1)
{
- PNG_CONST double power = 1/data.gamma;
- PNG_CONST double abse = calc_depth == 16 ? .5/65535 : .5/255;
-
- /* 'abse' is the absolute error permitted in linear calculations. It
- * is used here to capture the error permitted in the handling
- * (undoing) of the gamma encoding. Once again digitization occurs
- * to handle the upper and lower bounds of the values. This is
- * where the real errors are introduced.
+ const double power = 1/data.gamma;
+ const double abse = .5/(sample_depth == 16 ? 65535 : 255);
+
+ /* If a gamma calculation is done it is done using lookup tables of
+ * precision gamma_depth, so the already digitized value above may
+ * need to be further digitized here.
*/
+ if (gamma_depth != calc_depth)
+ {
+ rlo = DD(rlo, gamma_depth, 0/*truncate*/);
+ rhi = DU(rhi, gamma_depth, 0/*truncate*/);
+ glo = DD(glo, gamma_depth, 0/*truncate*/);
+ ghi = DU(ghi, gamma_depth, 0/*truncate*/);
+ blo = DD(blo, gamma_depth, 0/*truncate*/);
+ bhi = DU(bhi, gamma_depth, 0/*truncate*/);
+ }
+
+ /* 'abse' is the error in the gamma table calculation itself. */
r = pow(r, power);
- rlo = digitize(pow(rlo, power)-abse, calc_depth, 1);
- rhi = digitize(pow(rhi, power)+abse, calc_depth, 1);
+ rlo = DD(pow(rlo, power)-abse, calc_depth, 1);
+ rhi = DU(pow(rhi, power)+abse, calc_depth, 1);
g = pow(g, power);
- glo = digitize(pow(glo, power)-abse, calc_depth, 1);
- ghi = digitize(pow(ghi, power)+abse, calc_depth, 1);
+ glo = DD(pow(glo, power)-abse, calc_depth, 1);
+ ghi = DU(pow(ghi, power)+abse, calc_depth, 1);
b = pow(b, power);
- blo = digitize(pow(blo, power)-abse, calc_depth, 1);
- bhi = digitize(pow(bhi, power)+abse, calc_depth, 1);
+ blo = DD(pow(blo, power)-abse, calc_depth, 1);
+ bhi = DU(pow(bhi, power)+abse, calc_depth, 1);
}
/* Now calculate the actual gray values. Although the error in the
* coefficients depends on whether they were specified on the command
* line (in which case truncation to 15 bits happened) or not (rounding
* was used) the maxium error in an individual coefficient is always
- * 1/32768, because even in the rounding case the requirement that
+ * 2/32768, because even in the rounding case the requirement that
* coefficients add up to 32768 can cause a larger rounding error.
*
* The only time when rounding doesn't occur in 1.5.5 and later is when
b * data.blue_coefficient;
{
- PNG_CONST int do_round = data.gamma != 1 || calc_depth == 16;
- PNG_CONST double ce = 1. / 32768;
+ const int do_round = data.gamma != 1 || calc_depth == 16;
+ const double ce = 2. / 32768;
- graylo = digitize(rlo * (data.red_coefficient-ce) +
+ graylo = DD(rlo * (data.red_coefficient-ce) +
glo * (data.green_coefficient-ce) +
- blo * (data.blue_coefficient-ce), gamma_depth, do_round);
- if (graylo <= 0)
- graylo = 0;
+ blo * (data.blue_coefficient-ce), calc_depth, do_round);
+ if (graylo > gray) /* always accept the right answer */
+ graylo = gray;
- grayhi = digitize(rhi * (data.red_coefficient+ce) +
+ grayhi = DU(rhi * (data.red_coefficient+ce) +
ghi * (data.green_coefficient+ce) +
- bhi * (data.blue_coefficient+ce), gamma_depth, do_round);
- if (grayhi >= 1)
- grayhi = 1;
+ bhi * (data.blue_coefficient+ce), calc_depth, do_round);
+ if (grayhi < gray)
+ grayhi = gray;
}
/* And invert the gamma. */
if (data.gamma != 1)
{
- PNG_CONST double power = data.gamma;
+ const double power = data.gamma;
+
+ /* And this happens yet again, shifting the values once more. */
+ if (gamma_depth != sample_depth)
+ {
+ rlo = DD(rlo, gamma_depth, 0/*truncate*/);
+ rhi = DU(rhi, gamma_depth, 0/*truncate*/);
+ glo = DD(glo, gamma_depth, 0/*truncate*/);
+ ghi = DU(ghi, gamma_depth, 0/*truncate*/);
+ blo = DD(blo, gamma_depth, 0/*truncate*/);
+ bhi = DU(bhi, gamma_depth, 0/*truncate*/);
+ }
gray = pow(gray, power);
- graylo = digitize(pow(graylo, power), sample_depth, 1);
- grayhi = digitize(pow(grayhi, power), sample_depth, 1);
+ graylo = DD(pow(graylo, power), sample_depth, 1);
+ grayhi = DU(pow(grayhi, power), sample_depth, 1);
}
+# undef DD
+# undef DU
+
/* Now the error can be calculated.
*
* If r==g==b because there is no overall gamma correction libpng
else
{
err = fabs(grayhi-gray);
+
if (fabs(gray - graylo) > err)
err = fabs(graylo-gray);
+#if !RELEASE_BUILD
/* Check that this worked: */
if (err > pm->limit)
{
pos = safecatd(buffer, sizeof buffer, pos, err, 6);
pos = safecat(buffer, sizeof buffer, pos, " exceeds limit ");
pos = safecatd(buffer, sizeof buffer, pos, pm->limit, 6);
- png_error(pp, buffer);
+ png_warning(pp, buffer);
+ pm->limit = err;
}
+#endif /* !RELEASE_BUILD */
}
}
-# else /* DIGITIZE */
+# else /* !DIGITIZE */
{
double r = that->redf;
double re = that->rede;
double b = that->bluef;
double be = that->bluee;
- /* The true gray case involves no math. */
- if (r == g && r == b)
- {
- gray = r;
- err = re;
- if (err < ge) err = ge;
- if (err < be) err = be;
- }
+# if PNG_LIBPNG_VER < 10700
+ /* The true gray case involves no math in earlier versions (not
+ * true, there was some if gamma correction was happening too.)
+ */
+ if (r == g && r == b)
+ {
+ gray = r;
+ err = re;
+ if (err < ge) err = ge;
+ if (err < be) err = be;
+ }
- else if (data.gamma == 1)
+ else
+# endif /* before 1.7 */
+ if (data.gamma == 1)
{
/* There is no need to do the conversions to and from linear space,
* so the calculation should be a lot more accurate. There is a
- * built in 1/32768 error in the coefficients because they only have
- * 15 bits and are adjusted to make sure they add up to 32768, so
- * the result may have an additional error up to 1/32768. (Note
- * that adding the 1/32768 here avoids needing to increase the
- * global error limits to take this into account.)
+ * built in error in the coefficients because they only have 15 bits
+ * and are adjusted to make sure they add up to 32768. This
+ * involves a integer calculation with truncation of the form:
+ *
+ * ((int)(coefficient * 100000) * 32768)/100000
+ *
+ * This is done to the red and green coefficients (the ones
+ * provided to the API) then blue is calculated from them so the
+ * result adds up to 32768. In the worst case this can result in
+ * a -1 error in red and green and a +2 error in blue. Consequently
+ * the worst case in the calculation below is 2/32768 error.
+ *
+ * TODO: consider fixing this in libpng by rounding the calculation
+ * limiting the error to 1/32768.
+ *
+ * Handling this by adding 2/32768 here avoids needing to increase
+ * the global error limits to take this into account.)
*/
gray = r * data.red_coefficient + g * data.green_coefficient +
b * data.blue_coefficient;
err = re * data.red_coefficient + ge * data.green_coefficient +
- be * data.blue_coefficient + 1./32768 + gray * 5 * DBL_EPSILON;
+ be * data.blue_coefficient + 2./32768 + gray * 5 * DBL_EPSILON;
}
else
* lookups in the calculation and each introduces a quantization
* error defined by the table size.
*/
- PNG_CONST png_modifier *pm = display->pm;
+ png_modifier *pm = display->pm;
double in_qe = (that->sample_depth > 8 ? .5/65535 : .5/255);
double out_qe = (that->sample_depth > 8 ? .5/65535 :
- (pm->assume_16_bit_calculations ? .5/(1<<PNG_MAX_GAMMA_8) :
+ (pm->assume_16_bit_calculations ? .5/(1<<display->max_gamma_8) :
.5/255));
double rhi, ghi, bhi, grayhi;
double g1 = 1/data.gamma;
* previously added input quantization error at this point.
*/
gray = r * data.red_coefficient + g * data.green_coefficient +
- b * data.blue_coefficient - 1./32768 - out_qe;
+ b * data.blue_coefficient - 2./32768 - out_qe;
if (gray <= 0)
gray = 0;
else
}
grayhi = rhi * data.red_coefficient + ghi * data.green_coefficient +
- bhi * data.blue_coefficient + 1./32768 + out_qe;
+ bhi * data.blue_coefficient + 2./32768 + out_qe;
grayhi *= (1 + 6 * DBL_EPSILON);
if (grayhi >= 1)
grayhi = 1;
else
err -= in_qe;
+#if !RELEASE_BUILD
/* Validate that the error is within limits (this has caused
* problems before, it's much easier to detect them here.)
*/
pos = safecatd(buffer, sizeof buffer, pos, err, 6);
pos = safecat(buffer, sizeof buffer, pos, " exceeds limit ");
pos = safecatd(buffer, sizeof buffer, pos, pm->limit, 6);
- png_error(pp, buffer);
+ png_warning(pp, buffer);
+ pm->limit = err;
}
+#endif /* !RELEASE_BUILD */
}
}
# endif /* !DIGITIZE */
static int
image_transform_png_set_rgb_to_gray_add(image_transform *this,
- PNG_CONST image_transform **that, png_byte colour_type, png_byte bit_depth)
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
{
UNUSED(bit_depth)
static image_pixel data;
static void
-image_transform_png_set_background_set(PNG_CONST image_transform *this,
+image_transform_png_set_background_set(const image_transform *this,
transform_display *that, png_structp pp, png_infop pi)
{
png_byte colour_type, bit_depth;
* so we need to know what that is! The background colour is stored in the
* transform_display.
*/
- RANDOMIZE(random_bytes);
+ R8(random_bytes);
/* Read the random value, for colour type 3 the background colour is actually
* expressed as a 24bit rgb, not an index.
else
{
+ if (that->this.has_tRNS)
+ that->this.is_transparent = 1;
+
bit_depth = that->this.bit_depth;
expand = 1;
}
image_pixel_init(&data, random_bytes, colour_type,
- bit_depth, 0/*x*/, 0/*unused: palette*/);
+ bit_depth, 0/*x*/, 0/*unused: palette*/, NULL/*format*/);
/* Extract the background colour from this image_pixel, but make sure the
* unused fields of 'back' are garbage.
*/
- RANDOMIZE(back);
+ R8(back);
if (colour_type & PNG_COLOR_MASK_COLOR)
{
}
static void
-image_transform_png_set_background_mod(PNG_CONST image_transform *this,
+image_transform_png_set_background_mod(const image_transform *this,
image_pixel *that, png_const_structp pp,
- PNG_CONST transform_display *display)
+ const transform_display *display)
{
/* Check for tRNS first: */
if (that->have_tRNS && that->colour_type != PNG_COLOR_TYPE_PALETTE)
- image_pixel_add_alpha(that, &display->this);
+ image_pixel_add_alpha(that, &display->this, 1/*for background*/);
/* This is only necessary if the alpha value is less than 1. */
if (that->alphaf < 1)
/* Remove the alpha type and set the alpha (not in that order.) */
that->alphaf = 1;
that->alphae = 0;
-
- if (that->colour_type == PNG_COLOR_TYPE_RGB_ALPHA)
- that->colour_type = PNG_COLOR_TYPE_RGB;
- else if (that->colour_type == PNG_COLOR_TYPE_GRAY_ALPHA)
- that->colour_type = PNG_COLOR_TYPE_GRAY;
- /* PNG_COLOR_TYPE_PALETTE is not changed */
}
+ if (that->colour_type == PNG_COLOR_TYPE_RGB_ALPHA)
+ that->colour_type = PNG_COLOR_TYPE_RGB;
+ else if (that->colour_type == PNG_COLOR_TYPE_GRAY_ALPHA)
+ that->colour_type = PNG_COLOR_TYPE_GRAY;
+ /* PNG_COLOR_TYPE_PALETTE is not changed */
+
this->next->mod(this->next, that, pp, display);
}
#define PT ITSTRUCT(background)
#endif /* PNG_READ_BACKGROUND_SUPPORTED */
-/* This may just be 'end' if all the transforms are disabled! */
-static image_transform *PNG_CONST image_transform_first = &PT;
+/* png_set_quantize(png_structp, png_colorp palette, int num_palette,
+ * int maximum_colors, png_const_uint_16p histogram, int full_quantize)
+ *
+ * Very difficult to validate this!
+ */
+/*NOTE: TBD NYI */
+/* The data layout transforms are handled by swapping our own channel data,
+ * necessarily these need to happen at the end of the transform list because the
+ * semantic of the channels changes after these are executed. Some of these,
+ * like set_shift and set_packing, can't be done at present because they change
+ * the layout of the data at the sub-sample level so sample() won't get the
+ * right answer.
+ */
+/* png_set_invert_alpha */
+#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
+/* Invert the alpha channel
+ *
+ * png_set_invert_alpha(png_structrp png_ptr)
+ */
static void
-transform_enable(PNG_CONST char *name)
+image_transform_png_set_invert_alpha_set(const image_transform *this,
+ transform_display *that, png_structp pp, png_infop pi)
{
- /* Everything starts out enabled, so if we see an 'enable' disabled
- * everything else the first time round.
- */
- static int all_disabled = 0;
- int found_it = 0;
- image_transform *list = image_transform_first;
-
- while (list != &image_transform_end)
- {
- if (strcmp(list->name, name) == 0)
- {
- list->enable = 1;
- found_it = 1;
- }
- else if (!all_disabled)
- list->enable = 0;
-
- list = list->list;
- }
-
- all_disabled = 1;
-
- if (!found_it)
- {
- fprintf(stderr, "pngvalid: --transform-enable=%s: unknown transform\n",
- name);
- exit(99);
- }
+ png_set_invert_alpha(pp);
+ this->next->set(this->next, that, pp, pi);
}
static void
-transform_disable(PNG_CONST char *name)
+image_transform_png_set_invert_alpha_mod(const image_transform *this,
+ image_pixel *that, png_const_structp pp,
+ const transform_display *display)
{
- image_transform *list = image_transform_first;
+ if (that->colour_type & 4)
+ that->alpha_inverted = 1;
- while (list != &image_transform_end)
- {
- if (strcmp(list->name, name) == 0)
- {
- list->enable = 0;
- return;
- }
+ this->next->mod(this->next, that, pp, display);
+}
- list = list->list;
- }
+static int
+image_transform_png_set_invert_alpha_add(image_transform *this,
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
+{
+ UNUSED(bit_depth)
- fprintf(stderr, "pngvalid: --transform-disable=%s: unknown transform\n",
- name);
- exit(99);
+ this->next = *that;
+ *that = this;
+
+ /* Only has an effect on pixels with alpha: */
+ return (colour_type & 4) != 0;
}
+IT(invert_alpha);
+#undef PT
+#define PT ITSTRUCT(invert_alpha)
+
+#endif /* PNG_READ_INVERT_ALPHA_SUPPORTED */
+
+/* png_set_bgr */
+#ifdef PNG_READ_BGR_SUPPORTED
+/* Swap R,G,B channels to order B,G,R.
+ *
+ * png_set_bgr(png_structrp png_ptr)
+ *
+ * This only has an effect on RGB and RGBA pixels.
+ */
static void
-image_transform_reset_count(void)
+image_transform_png_set_bgr_set(const image_transform *this,
+ transform_display *that, png_structp pp, png_infop pi)
{
- image_transform *next = image_transform_first;
- int count = 0;
+ png_set_bgr(pp);
+ this->next->set(this->next, that, pp, pi);
+}
+
+static void
+image_transform_png_set_bgr_mod(const image_transform *this,
+ image_pixel *that, png_const_structp pp,
+ const transform_display *display)
+{
+ if (that->colour_type == PNG_COLOR_TYPE_RGB ||
+ that->colour_type == PNG_COLOR_TYPE_RGBA)
+ that->swap_rgb = 1;
+
+ this->next->mod(this->next, that, pp, display);
+}
+
+static int
+image_transform_png_set_bgr_add(image_transform *this,
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
+{
+ UNUSED(bit_depth)
+
+ this->next = *that;
+ *that = this;
+
+ return colour_type == PNG_COLOR_TYPE_RGB ||
+ colour_type == PNG_COLOR_TYPE_RGBA;
+}
+
+IT(bgr);
+#undef PT
+#define PT ITSTRUCT(bgr)
+
+#endif /* PNG_READ_BGR_SUPPORTED */
+
+/* png_set_swap_alpha */
+#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED
+/* Put the alpha channel first.
+ *
+ * png_set_swap_alpha(png_structrp png_ptr)
+ *
+ * This only has an effect on GA and RGBA pixels.
+ */
+static void
+image_transform_png_set_swap_alpha_set(const image_transform *this,
+ transform_display *that, png_structp pp, png_infop pi)
+{
+ png_set_swap_alpha(pp);
+ this->next->set(this->next, that, pp, pi);
+}
+
+static void
+image_transform_png_set_swap_alpha_mod(const image_transform *this,
+ image_pixel *that, png_const_structp pp,
+ const transform_display *display)
+{
+ if (that->colour_type == PNG_COLOR_TYPE_GA ||
+ that->colour_type == PNG_COLOR_TYPE_RGBA)
+ that->alpha_first = 1;
+
+ this->next->mod(this->next, that, pp, display);
+}
+
+static int
+image_transform_png_set_swap_alpha_add(image_transform *this,
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
+{
+ UNUSED(bit_depth)
+
+ this->next = *that;
+ *that = this;
+
+ return colour_type == PNG_COLOR_TYPE_GA ||
+ colour_type == PNG_COLOR_TYPE_RGBA;
+}
+
+IT(swap_alpha);
+#undef PT
+#define PT ITSTRUCT(swap_alpha)
+
+#endif /* PNG_READ_SWAP_ALPHA_SUPPORTED */
+
+/* png_set_swap */
+#ifdef PNG_READ_SWAP_SUPPORTED
+/* Byte swap 16-bit components.
+ *
+ * png_set_swap(png_structrp png_ptr)
+ */
+static void
+image_transform_png_set_swap_set(const image_transform *this,
+ transform_display *that, png_structp pp, png_infop pi)
+{
+ png_set_swap(pp);
+ this->next->set(this->next, that, pp, pi);
+}
+
+static void
+image_transform_png_set_swap_mod(const image_transform *this,
+ image_pixel *that, png_const_structp pp,
+ const transform_display *display)
+{
+ if (that->bit_depth == 16)
+ that->swap16 = 1;
+
+ this->next->mod(this->next, that, pp, display);
+}
+
+static int
+image_transform_png_set_swap_add(image_transform *this,
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
+{
+ UNUSED(colour_type)
+
+ this->next = *that;
+ *that = this;
+
+ return bit_depth == 16;
+}
+
+IT(swap);
+#undef PT
+#define PT ITSTRUCT(swap)
+
+#endif /* PNG_READ_SWAP_SUPPORTED */
+
+#ifdef PNG_READ_FILLER_SUPPORTED
+/* Add a filler byte to 8-bit Gray or 24-bit RGB images.
+ *
+ * png_set_filler, (png_structp png_ptr, png_uint_32 filler, int flags));
+ *
+ * Flags:
+ *
+ * PNG_FILLER_BEFORE
+ * PNG_FILLER_AFTER
+ */
+#define data ITDATA(filler)
+static struct
+{
+ png_uint_32 filler;
+ int flags;
+} data;
+
+static void
+image_transform_png_set_filler_set(const image_transform *this,
+ transform_display *that, png_structp pp, png_infop pi)
+{
+ /* Need a random choice for 'before' and 'after' as well as for the
+ * filler. The 'filler' value has all 32 bits set, but only bit_depth
+ * will be used. At this point we don't know bit_depth.
+ */
+ R32(data.filler);
+ data.flags = random_choice();
+
+ png_set_filler(pp, data.filler, data.flags);
+
+ /* The standard display handling stuff also needs to know that
+ * there is a filler, so set that here.
+ */
+ that->this.filler = 1;
+
+ this->next->set(this->next, that, pp, pi);
+}
+
+static void
+image_transform_png_set_filler_mod(const image_transform *this,
+ image_pixel *that, png_const_structp pp,
+ const transform_display *display)
+{
+ if (that->bit_depth >= 8 &&
+ (that->colour_type == PNG_COLOR_TYPE_RGB ||
+ that->colour_type == PNG_COLOR_TYPE_GRAY))
+ {
+ const unsigned int max = (1U << that->bit_depth)-1;
+ that->alpha = data.filler & max;
+ that->alphaf = ((double)that->alpha) / max;
+ that->alphae = 0;
+
+ /* The filler has been stored in the alpha channel, we must record
+ * that this has been done for the checking later on, the color
+ * type is faked to have an alpha channel, but libpng won't report
+ * this; the app has to know the extra channel is there and this
+ * was recording in standard_display::filler above.
+ */
+ that->colour_type |= 4; /* alpha added */
+ that->alpha_first = data.flags == PNG_FILLER_BEFORE;
+ }
+
+ this->next->mod(this->next, that, pp, display);
+}
+
+static int
+image_transform_png_set_filler_add(image_transform *this,
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
+{
+ this->next = *that;
+ *that = this;
+
+ return bit_depth >= 8 && (colour_type == PNG_COLOR_TYPE_RGB ||
+ colour_type == PNG_COLOR_TYPE_GRAY);
+}
+
+#undef data
+IT(filler);
+#undef PT
+#define PT ITSTRUCT(filler)
+
+/* png_set_add_alpha, (png_structp png_ptr, png_uint_32 filler, int flags)); */
+/* Add an alpha byte to 8-bit Gray or 24-bit RGB images. */
+#define data ITDATA(add_alpha)
+static struct
+{
+ png_uint_32 filler;
+ int flags;
+} data;
+
+static void
+image_transform_png_set_add_alpha_set(const image_transform *this,
+ transform_display *that, png_structp pp, png_infop pi)
+{
+ /* Need a random choice for 'before' and 'after' as well as for the
+ * filler. The 'filler' value has all 32 bits set, but only bit_depth
+ * will be used. At this point we don't know bit_depth.
+ */
+ R32(data.filler);
+ data.flags = random_choice();
+
+ png_set_add_alpha(pp, data.filler, data.flags);
+ this->next->set(this->next, that, pp, pi);
+}
+
+static void
+image_transform_png_set_add_alpha_mod(const image_transform *this,
+ image_pixel *that, png_const_structp pp,
+ const transform_display *display)
+{
+ if (that->bit_depth >= 8 &&
+ (that->colour_type == PNG_COLOR_TYPE_RGB ||
+ that->colour_type == PNG_COLOR_TYPE_GRAY))
+ {
+ const unsigned int max = (1U << that->bit_depth)-1;
+ that->alpha = data.filler & max;
+ that->alphaf = ((double)that->alpha) / max;
+ that->alphae = 0;
+
+ that->colour_type |= 4; /* alpha added */
+ that->alpha_first = data.flags == PNG_FILLER_BEFORE;
+ }
+
+ this->next->mod(this->next, that, pp, display);
+}
+
+static int
+image_transform_png_set_add_alpha_add(image_transform *this,
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
+{
+ this->next = *that;
+ *that = this;
+
+ return bit_depth >= 8 && (colour_type == PNG_COLOR_TYPE_RGB ||
+ colour_type == PNG_COLOR_TYPE_GRAY);
+}
+
+#undef data
+IT(add_alpha);
+#undef PT
+#define PT ITSTRUCT(add_alpha)
+
+#endif /* PNG_READ_FILLER_SUPPORTED */
+
+/* png_set_packing */
+#ifdef PNG_READ_PACK_SUPPORTED
+/* Use 1 byte per pixel in 1, 2, or 4-bit depth files.
+ *
+ * png_set_packing(png_structrp png_ptr)
+ *
+ * This should only affect grayscale and palette images with less than 8 bits
+ * per pixel.
+ */
+static void
+image_transform_png_set_packing_set(const image_transform *this,
+ transform_display *that, png_structp pp, png_infop pi)
+{
+ png_set_packing(pp);
+ that->unpacked = 1;
+ this->next->set(this->next, that, pp, pi);
+}
+
+static void
+image_transform_png_set_packing_mod(const image_transform *this,
+ image_pixel *that, png_const_structp pp,
+ const transform_display *display)
+{
+ /* The general expand case depends on what the colour type is,
+ * low bit-depth pixel values are unpacked into bytes without
+ * scaling, so sample_depth is not changed.
+ */
+ if (that->bit_depth < 8) /* grayscale or palette */
+ that->bit_depth = 8;
+
+ this->next->mod(this->next, that, pp, display);
+}
+
+static int
+image_transform_png_set_packing_add(image_transform *this,
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
+{
+ UNUSED(colour_type)
+
+ this->next = *that;
+ *that = this;
+
+ /* Nothing should happen unless the bit depth is less than 8: */
+ return bit_depth < 8;
+}
+
+IT(packing);
+#undef PT
+#define PT ITSTRUCT(packing)
+
+#endif /* PNG_READ_PACK_SUPPORTED */
+
+/* png_set_packswap */
+#ifdef PNG_READ_PACKSWAP_SUPPORTED
+/* Swap pixels packed into bytes; reverses the order on screen so that
+ * the high order bits correspond to the rightmost pixels.
+ *
+ * png_set_packswap(png_structrp png_ptr)
+ */
+static void
+image_transform_png_set_packswap_set(const image_transform *this,
+ transform_display *that, png_structp pp, png_infop pi)
+{
+ png_set_packswap(pp);
+ that->this.littleendian = 1;
+ this->next->set(this->next, that, pp, pi);
+}
+
+static void
+image_transform_png_set_packswap_mod(const image_transform *this,
+ image_pixel *that, png_const_structp pp,
+ const transform_display *display)
+{
+ if (that->bit_depth < 8)
+ that->littleendian = 1;
+
+ this->next->mod(this->next, that, pp, display);
+}
+
+static int
+image_transform_png_set_packswap_add(image_transform *this,
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
+{
+ UNUSED(colour_type)
+
+ this->next = *that;
+ *that = this;
+
+ return bit_depth < 8;
+}
+
+IT(packswap);
+#undef PT
+#define PT ITSTRUCT(packswap)
+
+#endif /* PNG_READ_PACKSWAP_SUPPORTED */
+
+
+/* png_set_invert_mono */
+#ifdef PNG_READ_INVERT_MONO_SUPPORTED
+/* Invert the gray channel
+ *
+ * png_set_invert_mono(png_structrp png_ptr)
+ */
+static void
+image_transform_png_set_invert_mono_set(const image_transform *this,
+ transform_display *that, png_structp pp, png_infop pi)
+{
+ png_set_invert_mono(pp);
+ this->next->set(this->next, that, pp, pi);
+}
+
+static void
+image_transform_png_set_invert_mono_mod(const image_transform *this,
+ image_pixel *that, png_const_structp pp,
+ const transform_display *display)
+{
+ if (that->colour_type & 4)
+ that->mono_inverted = 1;
+
+ this->next->mod(this->next, that, pp, display);
+}
+
+static int
+image_transform_png_set_invert_mono_add(image_transform *this,
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
+{
+ UNUSED(bit_depth)
+
+ this->next = *that;
+ *that = this;
+
+ /* Only has an effect on pixels with no colour: */
+ return (colour_type & 2) == 0;
+}
+
+IT(invert_mono);
+#undef PT
+#define PT ITSTRUCT(invert_mono)
+
+#endif /* PNG_READ_INVERT_MONO_SUPPORTED */
+
+#ifdef PNG_READ_SHIFT_SUPPORTED
+/* png_set_shift(png_structp, png_const_color_8p true_bits)
+ *
+ * The output pixels will be shifted by the given true_bits
+ * values.
+ */
+#define data ITDATA(shift)
+static png_color_8 data;
+
+static void
+image_transform_png_set_shift_set(const image_transform *this,
+ transform_display *that, png_structp pp, png_infop pi)
+{
+ /* Get a random set of shifts. The shifts need to do something
+ * to test the transform, so they are limited to the bit depth
+ * of the input image. Notice that in the following the 'gray'
+ * field is randomized independently. This acts as a check that
+ * libpng does use the correct field.
+ */
+ const unsigned int depth = that->this.bit_depth;
+
+ data.red = (png_byte)/*SAFE*/(random_mod(depth)+1);
+ data.green = (png_byte)/*SAFE*/(random_mod(depth)+1);
+ data.blue = (png_byte)/*SAFE*/(random_mod(depth)+1);
+ data.gray = (png_byte)/*SAFE*/(random_mod(depth)+1);
+ data.alpha = (png_byte)/*SAFE*/(random_mod(depth)+1);
+
+ png_set_shift(pp, &data);
+ this->next->set(this->next, that, pp, pi);
+}
+
+static void
+image_transform_png_set_shift_mod(const image_transform *this,
+ image_pixel *that, png_const_structp pp,
+ const transform_display *display)
+{
+ /* Copy the correct values into the sBIT fields, libpng does not do
+ * anything to palette data:
+ */
+ if (that->colour_type != PNG_COLOR_TYPE_PALETTE)
+ {
+ that->sig_bits = 1;
+
+ /* The sBIT fields are reset to the values previously sent to
+ * png_set_shift according to the colour type.
+ * does.
+ */
+ if (that->colour_type & 2) /* RGB channels */
+ {
+ that->red_sBIT = data.red;
+ that->green_sBIT = data.green;
+ that->blue_sBIT = data.blue;
+ }
+
+ else /* One grey channel */
+ that->red_sBIT = that->green_sBIT = that->blue_sBIT = data.gray;
+
+ that->alpha_sBIT = data.alpha;
+ }
+
+ this->next->mod(this->next, that, pp, display);
+}
+
+static int
+image_transform_png_set_shift_add(image_transform *this,
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
+{
+ UNUSED(bit_depth)
+
+ this->next = *that;
+ *that = this;
+
+ return colour_type != PNG_COLOR_TYPE_PALETTE;
+}
+
+IT(shift);
+#undef PT
+#define PT ITSTRUCT(shift)
+
+#endif /* PNG_READ_SHIFT_SUPPORTED */
+
+#ifdef THIS_IS_THE_PROFORMA
+static void
+image_transform_png_set_@_set(const image_transform *this,
+ transform_display *that, png_structp pp, png_infop pi)
+{
+ png_set_@(pp);
+ this->next->set(this->next, that, pp, pi);
+}
+
+static void
+image_transform_png_set_@_mod(const image_transform *this,
+ image_pixel *that, png_const_structp pp,
+ const transform_display *display)
+{
+ this->next->mod(this->next, that, pp, display);
+}
+
+static int
+image_transform_png_set_@_add(image_transform *this,
+ const image_transform **that, png_byte colour_type, png_byte bit_depth)
+{
+ this->next = *that;
+ *that = this;
+
+ return 1;
+}
+
+IT(@);
+#endif
+
+
+/* This may just be 'end' if all the transforms are disabled! */
+static image_transform *const image_transform_first = &PT;
+
+static void
+transform_enable(const char *name)
+{
+ /* Everything starts out enabled, so if we see an 'enable' disabled
+ * everything else the first time round.
+ */
+ static int all_disabled = 0;
+ int found_it = 0;
+ image_transform *list = image_transform_first;
+
+ while (list != &image_transform_end)
+ {
+ if (strcmp(list->name, name) == 0)
+ {
+ list->enable = 1;
+ found_it = 1;
+ }
+ else if (!all_disabled)
+ list->enable = 0;
+
+ list = list->list;
+ }
+
+ all_disabled = 1;
+
+ if (!found_it)
+ {
+ fprintf(stderr, "pngvalid: --transform-enable=%s: unknown transform\n",
+ name);
+ exit(99);
+ }
+}
+
+static void
+transform_disable(const char *name)
+{
+ image_transform *list = image_transform_first;
+
+ while (list != &image_transform_end)
+ {
+ if (strcmp(list->name, name) == 0)
+ {
+ list->enable = 0;
+ return;
+ }
+
+ list = list->list;
+ }
+
+ fprintf(stderr, "pngvalid: --transform-disable=%s: unknown transform\n",
+ name);
+ exit(99);
+}
+
+static void
+image_transform_reset_count(void)
+{
+ image_transform *next = image_transform_first;
+ int count = 0;
while (next != &image_transform_end)
{
}
static png_uint_32
-image_transform_add(PNG_CONST image_transform **this, unsigned int max,
+image_transform_add(const image_transform **this, unsigned int max,
png_uint_32 counter, char *name, size_t sizeof_name, size_t *pos,
png_byte colour_type, png_byte bit_depth)
{
}
}
-#ifdef THIS_IS_THE_PROFORMA
-static void
-image_transform_png_set_@_set(PNG_CONST image_transform *this,
- transform_display *that, png_structp pp, png_infop pi)
-{
- png_set_@(pp);
- this->next->set(this->next, that, pp, pi);
-}
-
-static void
-image_transform_png_set_@_mod(PNG_CONST image_transform *this,
- image_pixel *that, png_const_structp pp,
- PNG_CONST transform_display *display)
-{
- this->next->mod(this->next, that, pp, display);
-}
-
-static int
-image_transform_png_set_@_add(image_transform *this,
- PNG_CONST image_transform **that, char *name, size_t sizeof_name,
- size_t *pos, png_byte colour_type, png_byte bit_depth)
-{
- this->next = *that;
- *that = this;
-
- *pos = safecat(name, sizeof_name, *pos, " +@");
-
- return 1;
-}
-
-IT(@);
-#endif
-
-/* png_set_quantize(png_structp, png_colorp palette, int num_palette,
- * int maximum_colors, png_const_uint_16p histogram, int full_quantize)
- *
- * Very difficult to validate this!
- */
-/*NOTE: TBD NYI */
-
-/* The data layout transforms are handled by swapping our own channel data,
- * necessarily these need to happen at the end of the transform list because the
- * semantic of the channels changes after these are executed. Some of these,
- * like set_shift and set_packing, can't be done at present because they change
- * the layout of the data at the sub-sample level so sample() won't get the
- * right answer.
- */
-/* png_set_invert_alpha */
-/*NOTE: TBD NYI */
-
-/* png_set_bgr */
-/*NOTE: TBD NYI */
-
-/* png_set_swap_alpha */
-/*NOTE: TBD NYI */
-
-/* png_set_swap */
-/*NOTE: TBD NYI */
-
-/* png_set_filler, (png_structp png_ptr, png_uint_32 filler, int flags)); */
-/*NOTE: TBD NYI */
-
-/* png_set_add_alpha, (png_structp png_ptr, png_uint_32 filler, int flags)); */
-/*NOTE: TBD NYI */
-
-/* png_set_packing */
-/*NOTE: TBD NYI */
-
-/* png_set_packswap */
-/*NOTE: TBD NYI */
-
-/* png_set_invert_mono */
-/*NOTE: TBD NYI */
-
-/* png_set_shift(png_structp, png_const_color_8p true_bits) */
-/*NOTE: TBD NYI */
-
static void
perform_transform_test(png_modifier *pm)
{
png_byte bit_depth = 0;
unsigned int palette_number = 0;
- while (next_format(&colour_type, &bit_depth, &palette_number, 0))
+ while (next_format(&colour_type, &bit_depth, &palette_number, pm->test_lbg,
+ pm->test_tRNS))
{
png_uint_32 counter = 0;
size_t base_pos;
for (;;)
{
size_t pos = base_pos;
- PNG_CONST image_transform *list = 0;
+ const image_transform *list = 0;
/* 'max' is currently hardwired to '1'; this should be settable on the
* command line.
gamma_display_init(gamma_display *dp, png_modifier *pm, png_uint_32 id,
double file_gamma, double screen_gamma, png_byte sbit, int threshold_test,
int use_input_precision, int scale16, int expand16,
- int do_background, PNG_CONST png_color_16 *pointer_to_the_background_color,
+ int do_background, const png_color_16 *pointer_to_the_background_color,
double background_gamma)
{
/* Standard fields */
- standard_display_init(&dp->this, &pm->this, id, 0/*do_interlace*/,
+ standard_display_init(&dp->this, &pm->this, id, do_read_interlace,
pm->use_update_info);
/* Parameter fields */
/* If requested strip 16 to 8 bits - this is handled automagically below
* because the output bit depth is read from the library. Note that there
* are interactions with sBIT but, internally, libpng makes sbit at most
- * PNG_MAX_GAMMA_8 when doing the following.
+ * PNG_MAX_GAMMA_8 prior to 1.7 when doing the following.
*/
if (dp->scale16)
# ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
* non-inverted, represenation. It provides a default for the PNG file
* gamma, but since the file has a gAMA chunk this does not matter.
*/
- PNG_CONST double sg = dp->screen_gamma;
+ const double sg = dp->screen_gamma;
# ifndef PNG_FLOATING_POINT_SUPPORTED
- PNG_CONST png_fixed_point g = fix(sg);
+ const png_fixed_point g = fix(sg);
# endif
# ifdef PNG_FLOATING_POINT_SUPPORTED
# ifdef PNG_READ_BACKGROUND_SUPPORTED
/* NOTE: this assumes the caller provided the correct background gamma!
*/
- PNG_CONST double bg = dp->background_gamma;
+ const double bg = dp->background_gamma;
# ifndef PNG_FLOATING_POINT_SUPPORTED
- PNG_CONST png_fixed_point g = fix(bg);
+ const png_fixed_point g = fix(bg);
# endif
# ifdef PNG_FLOATING_POINT_SUPPORTED
init_validate_info(validate_info *vi, gamma_display *dp, png_const_structp pp,
int in_depth, int out_depth)
{
- PNG_CONST unsigned int outmax = (1U<<out_depth)-1;
+ const unsigned int outmax = (1U<<out_depth)-1;
vi->pp = pp;
vi->dp = dp;
vi->outlog = outlog(dp->pm, in_depth, out_depth);
if ((dp->this.colour_type & PNG_COLOR_MASK_ALPHA) != 0 ||
- (dp->this.colour_type == 3 && dp->this.is_transparent))
+ (dp->this.colour_type == 3 && dp->this.is_transparent) ||
+ ((dp->this.colour_type == 0 || dp->this.colour_type == 2) &&
+ dp->this.has_tRNS))
{
vi->do_background = dp->do_background;
if (vi->do_background != 0)
{
- PNG_CONST double bg_inverse = 1/dp->background_gamma;
+ const double bg_inverse = 1/dp->background_gamma;
double r, g, b;
/* Caller must at least put the gray value into the red channel */
vi->background_blue = b;
}
}
- else
+ else /* Do not expect any background processing */
vi->do_background = 0;
if (vi->do_background == 0)
/* This API returns the encoded *input* component, in the range 0..1 */
static double
-gamma_component_validate(PNG_CONST char *name, PNG_CONST validate_info *vi,
- PNG_CONST unsigned int id, PNG_CONST unsigned int od,
- PNG_CONST double alpha /* <0 for the alpha channel itself */,
- PNG_CONST double background /* component background value */)
+gamma_component_validate(const char *name, const validate_info *vi,
+ const unsigned int id, const unsigned int od,
+ const double alpha /* <0 for the alpha channel itself */,
+ const double background /* component background value */)
{
- PNG_CONST unsigned int isbit = id >> vi->isbit_shift;
- PNG_CONST unsigned int sbit_max = vi->sbit_max;
- PNG_CONST unsigned int outmax = vi->outmax;
- PNG_CONST int do_background = vi->do_background;
+ const unsigned int isbit = id >> vi->isbit_shift;
+ const unsigned int sbit_max = vi->sbit_max;
+ const unsigned int outmax = vi->outmax;
+ const int do_background = vi->do_background;
double i;
png_infop pi)
{
/* Get some constants derived from the input and output file formats: */
- PNG_CONST png_store* PNG_CONST ps = dp->this.ps;
- PNG_CONST png_byte in_ct = dp->this.colour_type;
- PNG_CONST png_byte in_bd = dp->this.bit_depth;
- PNG_CONST png_uint_32 w = dp->this.w;
- PNG_CONST png_uint_32 h = dp->this.h;
- PNG_CONST size_t cbRow = dp->this.cbRow;
- PNG_CONST png_byte out_ct = png_get_color_type(pp, pi);
- PNG_CONST png_byte out_bd = png_get_bit_depth(pp, pi);
+ const png_store* const ps = dp->this.ps;
+ const png_byte in_ct = dp->this.colour_type;
+ const png_byte in_bd = dp->this.bit_depth;
+ const png_uint_32 w = dp->this.w;
+ const png_uint_32 h = dp->this.h;
+ const size_t cbRow = dp->this.cbRow;
+ const png_byte out_ct = png_get_color_type(pp, pi);
+ const png_byte out_bd = png_get_bit_depth(pp, pi);
/* There are three sources of error, firstly the quantization in the
* file encoding, determined by sbit and/or the file depth, secondly
* The basic tests below do not do this, however if 'use_input_precision'
* is set a subsequent test is performed above.
*/
- PNG_CONST unsigned int samples_per_pixel = (out_ct & 2U) ? 3U : 1U;
+ const unsigned int samples_per_pixel = (out_ct & 2U) ? 3U : 1U;
int processing;
png_uint_32 y;
- PNG_CONST store_palette_entry *in_palette = dp->this.palette;
- PNG_CONST int in_is_transparent = dp->this.is_transparent;
+ const store_palette_entry *in_palette = dp->this.palette;
+ const int in_is_transparent = dp->this.is_transparent;
+ int process_tRNS;
int out_npalette = -1;
int out_is_transparent = 0; /* Just refers to the palette case */
store_palette out_palette;
processing = (vi.gamma_correction > 0 && !dp->threshold_test)
|| in_bd != out_bd || in_ct != out_ct || vi.do_background;
+ process_tRNS = dp->this.has_tRNS && vi.do_background;
/* TODO: FIX THIS: MAJOR BUG! If the transformations all happen inside
* the palette there is no way of finding out, because libpng fails to
double alpha = 1; /* serves as a flag value */
/* Record the palette index for index images. */
- PNG_CONST unsigned int in_index =
- in_ct == 3 ? sample(std, 3, in_bd, x, 0) : 256;
- PNG_CONST unsigned int out_index =
- out_ct == 3 ? sample(std, 3, out_bd, x, 0) : 256;
+ const unsigned int in_index =
+ in_ct == 3 ? sample(std, 3, in_bd, x, 0, 0, 0) : 256;
+ const unsigned int out_index =
+ out_ct == 3 ? sample(std, 3, out_bd, x, 0, 0, 0) : 256;
/* Handle input alpha - png_set_background will cause the output
* alpha to disappear so there is nothing to check.
*/
- if ((in_ct & PNG_COLOR_MASK_ALPHA) != 0 || (in_ct == 3 &&
- in_is_transparent))
+ if ((in_ct & PNG_COLOR_MASK_ALPHA) != 0 ||
+ (in_ct == 3 && in_is_transparent))
{
- PNG_CONST unsigned int input_alpha = in_ct == 3 ?
+ const unsigned int input_alpha = in_ct == 3 ?
dp->this.palette[in_index].alpha :
- sample(std, in_ct, in_bd, x, samples_per_pixel);
+ sample(std, in_ct, in_bd, x, samples_per_pixel, 0, 0);
unsigned int output_alpha = 65536 /* as a flag value */;
else if ((out_ct & PNG_COLOR_MASK_ALPHA) != 0)
output_alpha = sample(pRow, out_ct, out_bd, x,
- samples_per_pixel);
+ samples_per_pixel, 0, 0);
if (output_alpha != 65536)
alpha = gamma_component_validate("alpha", &vi, input_alpha,
}
}
+ else if (process_tRNS)
+ {
+ /* alpha needs to be set appropriately for this pixel, it is
+ * currently 1 and needs to be 0 for an input pixel which matches
+ * the values in tRNS.
+ */
+ switch (in_ct)
+ {
+ case 0: /* gray */
+ if (sample(std, in_ct, in_bd, x, 0, 0, 0) ==
+ dp->this.transparent.red)
+ alpha = 0;
+ break;
+
+ case 2: /* RGB */
+ if (sample(std, in_ct, in_bd, x, 0, 0, 0) ==
+ dp->this.transparent.red &&
+ sample(std, in_ct, in_bd, x, 1, 0, 0) ==
+ dp->this.transparent.green &&
+ sample(std, in_ct, in_bd, x, 2, 0, 0) ==
+ dp->this.transparent.blue)
+ alpha = 0;
+ break;
+
+ default:
+ break;
+ }
+ }
+
/* Handle grayscale or RGB components. */
if ((in_ct & PNG_COLOR_MASK_COLOR) == 0) /* grayscale */
(void)gamma_component_validate("gray", &vi,
- sample(std, in_ct, in_bd, x, 0),
- sample(pRow, out_ct, out_bd, x, 0), alpha/*component*/,
- vi.background_red);
+ sample(std, in_ct, in_bd, x, 0, 0, 0),
+ sample(pRow, out_ct, out_bd, x, 0, 0, 0),
+ alpha/*component*/, vi.background_red);
else /* RGB or palette */
{
(void)gamma_component_validate("red", &vi,
in_ct == 3 ? in_palette[in_index].red :
- sample(std, in_ct, in_bd, x, 0),
+ sample(std, in_ct, in_bd, x, 0, 0, 0),
out_ct == 3 ? out_palette[out_index].red :
- sample(pRow, out_ct, out_bd, x, 0),
+ sample(pRow, out_ct, out_bd, x, 0, 0, 0),
alpha/*component*/, vi.background_red);
(void)gamma_component_validate("green", &vi,
in_ct == 3 ? in_palette[in_index].green :
- sample(std, in_ct, in_bd, x, 1),
+ sample(std, in_ct, in_bd, x, 1, 0, 0),
out_ct == 3 ? out_palette[out_index].green :
- sample(pRow, out_ct, out_bd, x, 1),
+ sample(pRow, out_ct, out_bd, x, 1, 0, 0),
alpha/*component*/, vi.background_green);
(void)gamma_component_validate("blue", &vi,
in_ct == 3 ? in_palette[in_index].blue :
- sample(std, in_ct, in_bd, x, 2),
+ sample(std, in_ct, in_bd, x, 2, 0, 0),
out_ct == 3 ? out_palette[out_index].blue :
- sample(pRow, out_ct, out_bd, x, 2),
+ sample(pRow, out_ct, out_bd, x, 2, 0, 0),
alpha/*component*/, vi.background_blue);
}
}
* maxpc: maximum percentage error (as a percentage)
*/
static void
-gamma_test(png_modifier *pmIn, PNG_CONST png_byte colour_typeIn,
- PNG_CONST png_byte bit_depthIn, PNG_CONST int palette_numberIn,
- PNG_CONST int interlace_typeIn,
- PNG_CONST double file_gammaIn, PNG_CONST double screen_gammaIn,
- PNG_CONST png_byte sbitIn, PNG_CONST int threshold_testIn,
- PNG_CONST char *name,
- PNG_CONST int use_input_precisionIn, PNG_CONST int scale16In,
- PNG_CONST int expand16In, PNG_CONST int do_backgroundIn,
- PNG_CONST png_color_16 *bkgd_colorIn, double bkgd_gammaIn)
+gamma_test(png_modifier *pmIn, const png_byte colour_typeIn,
+ const png_byte bit_depthIn, const int palette_numberIn,
+ const int interlace_typeIn,
+ const double file_gammaIn, const double screen_gammaIn,
+ const png_byte sbitIn, const int threshold_testIn,
+ const char *name,
+ const int use_input_precisionIn, const int scale16In,
+ const int expand16In, const int do_backgroundIn,
+ const png_color_16 *bkgd_colorIn, double bkgd_gammaIn)
{
gamma_display d;
context(&pmIn->this, fault);
modification_reset(d.pm->modifications);
- /* Get a png_struct for writing the image. */
+ /* Get a png_struct for reading the image. */
pp = set_modifier_for_read(d.pm, &pi, d.this.id, name);
standard_palette_init(&d.this);
/* Don't test more than one instance of each palette - it's pointless, in
* fact this test is somewhat excessive since libpng doesn't make this
* decision based on colour type or bit depth!
+ *
+ * CHANGED: now test two palettes and, as a side effect, images with and
+ * without tRNS.
*/
- while (next_format(&colour_type, &bit_depth, &palette_number, 1/*gamma*/))
- if (palette_number == 0)
+ while (next_format(&colour_type, &bit_depth, &palette_number,
+ pm->test_lbg_gamma_threshold, pm->test_tRNS))
+ if (palette_number < 2)
{
double test_gamma = 1.0;
while (test_gamma >= .4)
}
static void gamma_transform_test(png_modifier *pm,
- PNG_CONST png_byte colour_type, PNG_CONST png_byte bit_depth,
- PNG_CONST int palette_number,
- PNG_CONST int interlace_type, PNG_CONST double file_gamma,
- PNG_CONST double screen_gamma, PNG_CONST png_byte sbit,
- PNG_CONST int use_input_precision, PNG_CONST int scale16)
+ const png_byte colour_type, const png_byte bit_depth,
+ const int palette_number,
+ const int interlace_type, const double file_gamma,
+ const double screen_gamma, const png_byte sbit,
+ const int use_input_precision, const int scale16)
{
size_t pos = 0;
char name[64];
png_byte bit_depth = 0;
unsigned int palette_number = 0;
- while (next_format(&colour_type, &bit_depth, &palette_number, 1/*gamma*/))
+ while (next_format(&colour_type, &bit_depth, &palette_number,
+ pm->test_lbg_gamma_transform, pm->test_tRNS))
{
unsigned int i, j;
png_byte colour_type = 0, bit_depth = 0;
unsigned int npalette = 0;
- while (next_format(&colour_type, &bit_depth, &npalette, 1/*gamma*/))
+ while (next_format(&colour_type, &bit_depth, &npalette,
+ pm->test_lbg_gamma_sbit, pm->test_tRNS))
if ((colour_type & PNG_COLOR_MASK_ALPHA) == 0 &&
((colour_type == 3 && sbit < 8) ||
(colour_type != 3 && sbit < bit_depth)))
# ifndef PNG_MAX_GAMMA_8
# define PNG_MAX_GAMMA_8 11
# endif
-# define SBIT_16_TO_8 PNG_MAX_GAMMA_8
+# if defined PNG_MAX_GAMMA_8 || PNG_LIBPNG_VER < 10700
+# define SBIT_16_TO_8 PNG_MAX_GAMMA_8
+# else
+# define SBIT_16_TO_8 16
+# endif
/* Include the alpha cases here. Note that sbit matches the internal value
* used by the library - otherwise we will get spurious errors from the
* internal sbit style approximation.
#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\
defined(PNG_READ_ALPHA_MODE_SUPPORTED)
static void gamma_composition_test(png_modifier *pm,
- PNG_CONST png_byte colour_type, PNG_CONST png_byte bit_depth,
- PNG_CONST int palette_number,
- PNG_CONST int interlace_type, PNG_CONST double file_gamma,
- PNG_CONST double screen_gamma,
- PNG_CONST int use_input_precision, PNG_CONST int do_background,
- PNG_CONST int expand_16)
+ const png_byte colour_type, const png_byte bit_depth,
+ const int palette_number,
+ const int interlace_type, const double file_gamma,
+ const double screen_gamma,
+ const int use_input_precision, const int do_background,
+ const int expand_16)
{
size_t pos = 0;
png_const_charp base;
}
background.index = 193; /* rgb(193,193,193) to detect errors */
+
if (!(colour_type & PNG_COLOR_MASK_COLOR))
{
+ /* Because, currently, png_set_background is always called with
+ * 'need_expand' false in this case and because the gamma test itself
+ * doesn't cause an expand to 8-bit for lower bit depths the colour must
+ * be reduced to the correct range.
+ */
+ if (bit_depth < 8)
+ background.gray &= (png_uint_16)((1U << bit_depth)-1);
+
/* Grayscale input, we do not convert to RGB (TBD), so we must set the
* background to gray - else libpng seems to fail.
*/
/* Skip the non-alpha cases - there is no setting of a transparency colour at
* present.
- */
- while (next_format(&colour_type, &bit_depth, &palette_number, 1/*gamma*/))
- if ((colour_type & PNG_COLOR_MASK_ALPHA) != 0)
+ *
+ * TODO: incorrect; the palette case sets tRNS and, now RGB and gray do,
+ * however the palette case fails miserably so is commented out below.
+ */
+ while (next_format(&colour_type, &bit_depth, &palette_number,
+ pm->test_lbg_gamma_composition, pm->test_tRNS))
+ if ((colour_type & PNG_COLOR_MASK_ALPHA) != 0
+#if 0 /* TODO: FIXME */
+ /*TODO: FIXME: this should work */
+ || colour_type == 3
+#endif
+ || (colour_type != 3 && palette_number != 0))
{
unsigned int i, j;
* be indexed adam7[y][x] and notice that the pass numbers are based at
* 1, not 0 - the base libpng uses.
*/
-static PNG_CONST
+static const
png_byte adam7[8][8] =
{
{ 1,6,4,6,2,6,4,6 },
* The png_modifier code assumes that encodings[0] is sRGB and treats it
* specially: do not change the first entry in this list!
*/
-static PNG_CONST color_encoding test_encodings[] =
+static const color_encoding test_encodings[] =
{
/* sRGB: must be first in this list! */
/*gamma:*/ { 1/2.2,
/*red: */ { 0.716500716779386, 0.258728243040113, 0.000000000000000 },
/*green:*/ { 0.101020574397477, 0.724682314948566, 0.051211818965388 },
/*blue: */ { 0.146774385252705, 0.016589442011321, 0.773892783545073} },
+/* Fake encoding which selects just the green channel */
+/*gamma:*/ { 1.45/2.2, /* the 'Mac' gamma */
+/*red: */ { 0.716500716779386, 0.000000000000000, 0.000000000000000 },
+/*green:*/ { 0.101020574397477, 1.000000000000000, 0.051211818965388 },
+/*blue: */ { 0.146774385252705, 0.000000000000000, 0.773892783545073} },
};
/* signal handler
/* main program */
int main(int argc, char **argv)
{
- volatile int summary = 1; /* Print the error summary at the end */
- volatile int memstats = 0; /* Print memory statistics at the end */
+ int summary = 1; /* Print the error summary at the end */
+ int memstats = 0; /* Print memory statistics at the end */
/* Create the given output file on success: */
- PNG_CONST char *volatile touch = NULL;
+ const char *touch = NULL;
/* This is an array of standard gamma values (believe it or not I've seen
* every one of these mentioned somewhere.)
anon_context(&pm.this);
+ gnu_volatile(summary)
+ gnu_volatile(memstats)
+ gnu_volatile(touch)
+
/* Add appropriate signal handlers, just the ANSI specified ones: */
signal(SIGABRT, signal_handler);
signal(SIGFPE, signal_handler);
/* Store the test gammas */
pm.gammas = gammas;
- pm.ngammas = (sizeof gammas) / (sizeof gammas[0]);
+ pm.ngammas = ARRAY_SIZE(gammas);
pm.ngamma_tests = 0; /* default to off */
+ /* Low bit depth gray images don't do well in the gamma tests, until
+ * this is fixed turn them off for some gamma cases:
+ */
+# ifdef PNG_WRITE_tRNS_SUPPORTED
+ pm.test_tRNS = 1;
+# endif
+ pm.test_lbg = PNG_LIBPNG_VER >= 10600;
+ pm.test_lbg_gamma_threshold = 1;
+ pm.test_lbg_gamma_transform = PNG_LIBPNG_VER >= 10600;
+ pm.test_lbg_gamma_sbit = 1;
+ pm.test_lbg_gamma_composition = PNG_LIBPNG_VER >= 10700;
+
/* And the test encodings */
pm.encodings = test_encodings;
- pm.nencodings = (sizeof test_encodings) / (sizeof test_encodings[0]);
+ pm.nencodings = ARRAY_SIZE(test_encodings);
- pm.sbitlow = 8U; /* because libpng doesn't do sBIT below 8! */
+# if PNG_LIBPNG_VER < 10700
+ pm.sbitlow = 8U; /* because libpng doesn't do sBIT below 8! */
+# else
+ pm.sbitlow = 1U;
+# endif
/* The following allows results to pass if they correspond to anything in the
* transformed range [input-.5,input+.5]; this is is required because of the
pm.maxout16 = .499; /* Error in *encoded* value */
pm.maxabs16 = .00005;/* 1/20000 */
pm.maxcalc16 =1./65535;/* +/-1 in 16 bits for compose errors */
- pm.maxcalcG = 1./((1<<PNG_MAX_GAMMA_8)-1);
+# if PNG_LIBPNG_VER < 10700
+ pm.maxcalcG = 1./((1<<PNG_MAX_GAMMA_8)-1);
+# else
+ pm.maxcalcG = 1./((1<<16)-1);
+# endif
/* NOTE: this is a reasonable perceptual limit. We assume that humans can
* perceive light level differences of 1% over a 100:1 range, so we need to
else if (strcmp(*argv, "-q") == 0)
summary = pm.this.verbose = pm.log = 0;
- else if (strcmp(*argv, "-w") == 0)
+ else if (strcmp(*argv, "-w") == 0 ||
+ strcmp(*argv, "--strict") == 0)
+ pm.this.treat_warnings_as_errors = 1; /* NOTE: this is the default! */
+
+ else if (strcmp(*argv, "--nostrict") == 0)
pm.this.treat_warnings_as_errors = 0;
else if (strcmp(*argv, "--speed") == 0)
pm.test_gamma_transform = 1;
pm.test_gamma_sbit = 1;
pm.test_gamma_scale16 = 1;
- pm.test_gamma_background = 1;
+ pm.test_gamma_background = 1; /* composition */
pm.test_gamma_alpha_mode = 1;
}
else if (strcmp(*argv, "--noexpand16") == 0)
pm.test_gamma_expand16 = 0;
+ else if (strcmp(*argv, "--low-depth-gray") == 0)
+ pm.test_lbg = pm.test_lbg_gamma_threshold =
+ pm.test_lbg_gamma_transform = pm.test_lbg_gamma_sbit =
+ pm.test_lbg_gamma_composition = 1;
+
+ else if (strcmp(*argv, "--nolow-depth-gray") == 0)
+ pm.test_lbg = pm.test_lbg_gamma_threshold =
+ pm.test_lbg_gamma_transform = pm.test_lbg_gamma_sbit =
+ pm.test_lbg_gamma_composition = 0;
+
+# ifdef PNG_WRITE_tRNS_SUPPORTED
+ else if (strcmp(*argv, "--tRNS") == 0)
+ pm.test_tRNS = 1;
+# endif
+
+ else if (strcmp(*argv, "--notRNS") == 0)
+ pm.test_tRNS = 0;
+
else if (strcmp(*argv, "--more-gammas") == 0)
pm.ngamma_tests = 3U;
else if (strcmp(*argv, "--interlace") == 0)
{
-# ifdef PNG_WRITE_INTERLACING_SUPPORTED
+# if CAN_WRITE_INTERLACE
pm.interlace_type = PNG_INTERLACE_ADAM7;
-# else
+# else /* !CAN_WRITE_INTERLACE */
fprintf(stderr, "pngvalid: no write interlace support\n");
return SKIP;
-# endif
+# endif /* !CAN_WRITE_INTERLACE */
}
else if (strcmp(*argv, "--use-input-precision") == 0)
const char *arg = 9+*argv;
unsigned char option=0, setting=0;
-#ifdef PNG_ARM_NEON_API_SUPPORTED
+#ifdef PNG_ARM_NEON
if (strncmp(arg, "arm-neon:", 9) == 0)
option = PNG_ARM_NEON, arg += 9;
else
#endif
+#ifdef PNG_EXTENSIONS
+ if (strncmp(arg, "extensions:", 11) == 0)
+ option = PNG_EXTENSIONS, arg += 11;
+
+ else
+#endif
#ifdef PNG_MAXIMUM_INFLATE_WINDOW
if (strncmp(arg, "max-inflate-window:", 19) == 0)
option = PNG_MAXIMUM_INFLATE_WINDOW, arg += 19;
Try
{
/* Make useful base images */
- make_transform_images(&pm.this);
+ make_transform_images(&pm);
/* Perform the standard and gamma tests. */
if (pm.test_standard)
{
png_size_t rowbytes = png_get_rowbytes(png_ptr, info_ptr);
+ /* Failure to initialize these is harmless */
row = malloc(rowbytes);
display = malloc(rowbytes);
{
png_uint_32 height = png_get_image_height(png_ptr, info_ptr);
- int passes = png_set_interlace_handling(png_ptr);
+# ifdef PNG_READ_INTERLACING_SUPPORTED
+ int passes = png_set_interlace_handling(png_ptr);
+# else /* !READ_INTERLACING */
+ int passes = png_get_interlace_type(png_ptr, info_ptr) ==
+ PNG_INTERLACE_ADAM7 ? PNG_INTERLACE_ADAM7_PASSES : 1;
+# endif /* !READ_INTERLACING */
int pass;
png_start_read_image(png_ptr);
{
png_uint_32 y = height;
+# ifndef PNG_READ_INTERLACING_SUPPORTED
+ if (passes == PNG_INTERLACE_ADAM7_PASSES)
+ y = PNG_PASS_ROWS(y, pass);
+# endif /* READ_INTERLACING */
+
/* NOTE: this trashes the row each time; interlace handling won't
* work, but this avoids memory thrashing for speed testing.
*/
{
png_fixed_point result;
/* NOTE: your mileage may vary, a type is required below that can
- * hold 64 bits or more, if floating point is used a 64 bit or
+ * hold 64 bits or more, if floating point is used a 64-bit or
* better mantissa is required.
*/
long long int fp, fpround;
}
while (--count > 0);
- printf("%d tests including %d overflows, %d passed, %d failed (%d 64 bit "
+ printf("%d tests including %d overflows, %d passed, %d failed (%d 64-bit "
"errors)\n", tested, overflow, passed, error, error64);
return 0;
}
if (i == 0 && png_log8bit(i) != 0xffffffff ||
i != 0 && png_log8bit(i) != floor(correct+.5))
{
- fprintf(stderr, "8 bit log error: %d: got %u, expected %f\n",
+ fprintf(stderr, "8-bit log error: %d: got %u, expected %f\n",
i, png_log8bit(i), correct);
}
}
if (!silent)
- printf("maximum 8 bit log error = %f\n", maxerr);
+ printf("maximum 8-bit log error = %f\n", maxerr);
maxerr = 0;
for (i=0; i<65536; ++i)
{
if (error > .68) /* By experiment error is less than .68 */
{
- fprintf(stderr, "16 bit log error: %d: got %u, expected %f"
+ fprintf(stderr, "16-bit log error: %d: got %u, expected %f"
" error: %f\n", i, png_log16bit(i), correct, error);
}
}
}
if (!silent)
- printf("maximum 16 bit log error = %f\n", maxerr);
+ printf("maximum 16-bit log error = %f\n", maxerr);
/* Now exponentiations. */
maxerr = 0;
maxerr = fabs(error);
if (fabs(error) > 1883) /* By experiment. */
{
- fprintf(stderr, "32 bit exp error: %d: got %u, expected %f"
+ fprintf(stderr, "32-bit exp error: %d: got %u, expected %f"
" error: %f\n", i, png_exp(i), correct, error);
}
}
if (!silent)
- printf("maximum 32 bit exp error = %f\n", maxerr);
+ printf("maximum 32-bit exp error = %f\n", maxerr);
maxerr = 0;
for (i=0; i<=0xfffff; ++i)
maxerr = fabs(error);
if (fabs(error) > .50002) /* By experiment */
{
- fprintf(stderr, "8 bit exp error: %d: got %u, expected %f"
+ fprintf(stderr, "8-bit exp error: %d: got %u, expected %f"
" error: %f\n", i, png_exp8bit(i), correct, error);
}
}
if (!silent)
- printf("maximum 8 bit exp error = %f\n", maxerr);
+ printf("maximum 8-bit exp error = %f\n", maxerr);
maxerr = 0;
for (i=0; i<=0xfffff; ++i)
maxerr = fabs(error);
if (fabs(error) > .524) /* By experiment */
{
- fprintf(stderr, "16 bit exp error: %d: got %u, expected %f"
+ fprintf(stderr, "16-bit exp error: %d: got %u, expected %f"
" error: %f\n", i, png_exp16bit(i), correct, error);
}
}
if (!silent)
- printf("maximum 16 bit exp error = %f\n", maxerr);
+ printf("maximum 16-bit exp error = %f\n", maxerr);
} /* !onlygamma */
/* Test the overall gamma correction. */
}
if (!silent)
- printf("gamma %f: maximum 8 bit error %f\n", g, maxerr);
+ printf("gamma %f: maximum 8-bit error %f\n", g, maxerr);
maxerr = 0;
for (j=0; j<65536; ++j)
}
if (!silent)
- printf("gamma %f: maximum 16 bit error %f\n", g, maxerr);
+ printf("gamma %f: maximum 16-bit error %f\n", g, maxerr);
}
return 0;
/* create png and info structures */
- png_ptr = png_create_read_struct (PNG_LIBPNG_VER_STRING,
+ png_ptr = png_create_read_struct (png_get_libpng_ver(NULL),
NULL, NULL, NULL);
if (!png_ptr)
return FALSE; /* out of memory */
png_set_expand (png_ptr);
#ifdef NJET
- /* downgrade 16-bit images to 8 bit */
+ /* downgrade 16-bit images to 8-bit */
if (bit_depth == 16)
png_set_strip_16 (png_ptr);
/* transform grayscale images into full-color */
* copyright (C) 1999 by Willem van Schaik <willem@schaik.com>
*
* version 1.0 - 1999.10.15 - First version.
+ * version 1.1 - 2015.07.29 - Fixed leaks (Glenn Randers-Pehrson)
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted,
char width_token[16];
char height_token[16];
char maxval_token[16];
- volatile int color_type;
+ volatile int color_type=1;
unsigned long ul_width=0, ul_alpha_width=0;
unsigned long ul_height=0, ul_alpha_height=0;
unsigned long ul_maxval=0;
- volatile png_uint_32 width, height;
- volatile png_uint_32 alpha_width, alpha_height;
+ volatile png_uint_32 width=0, height=0;
+ volatile png_uint_32 alpha_width=0, alpha_height=0;
png_uint_32 maxval;
volatile int bit_depth = 0;
- int channels;
+ int channels=0;
int alpha_depth = 0;
- int alpha_present;
+ int alpha_present=0;
int row, col;
BOOL raw, alpha_raw = FALSE;
#if defined(PNG_WRITE_INVERT_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
channels = 3;
else if (color_type == PNG_COLOR_TYPE_RGB_ALPHA)
channels = 4;
+#if 0
else
- channels = 0; /* should not happen */
+ channels = 0; /* cannot happen */
+#endif
alpha_present = (channels - 1) % 2;
} /* end for row */
/* prepare the standard PNG structures */
- png_ptr = png_create_write_struct (PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+ png_ptr = png_create_write_struct (png_get_libpng_ver(NULL), NULL, NULL,
+ NULL);
if (!png_ptr)
{
+ free (png_pixels);
+ png_pixels = NULL;
return FALSE;
}
info_ptr = png_create_info_struct (png_ptr);
if (!info_ptr)
{
png_destroy_write_struct (&png_ptr, (png_infopp) NULL);
+ free (png_pixels);
+ png_pixels = NULL;
return FALSE;
}
/* setjmp() must be called in every function that calls a PNG-reading libpng function */
if (setjmp (png_jmpbuf(png_ptr)))
{
- png_destroy_write_struct (&png_ptr, (png_infopp) NULL);
+ png_destroy_write_struct (&png_ptr, &info_ptr);
+ free (png_pixels);
+ png_pixels = NULL;
return FALSE;
}
if ((row_pointers = (png_byte **)
malloc (height * sizeof (png_bytep))) == NULL)
{
- png_destroy_write_struct (&png_ptr, (png_infopp) NULL);
+ png_destroy_write_struct (&png_ptr, &info_ptr);
+ free (png_pixels);
+ png_pixels = NULL;
return FALSE;
}
}
png_write_end (png_ptr, info_ptr);
/* clean up after the write, and free any memory allocated */
- png_destroy_write_struct (&png_ptr, (png_infopp) NULL);
+ png_destroy_write_struct (&png_ptr, &info_ptr);
if (row_pointers != (unsigned char**) NULL)
free (row_pointers);
pngsuite
--------
-(c) Willem van Schaik, 1999, 2011, 2012
-Two images are by Glenn Randers-Pehrson, 2012
+Copyright (c) Willem van Schaik, 1999, 2011, 2012
+Two images (ftbbn0g01.png and ftbbn0g02.png) are by Glenn Randers-Pehrson, 2012
Permission to use, copy, modify, and distribute these images for any
purpose and without fee is hereby granted.
--- /dev/null
+#!/bin/sh
+#
+# Make a set of test PNG files, MAKEPNG is the name of the makepng executable
+# built from contrib/libtests/makepng.c
+
+# Copyright (c) 2015 John Cunningham Bowler
+
+# Last changed in libpng 1.7.0 [(PENDING RELEASE)]
+
+# This code is released under the libpng license.
+# For conditions of distribution and use, see the disclaimer
+# and license in png.h
+
+# The arguments say whether to build all the files or whether just to build the
+# ones that extend the code-coverage of libpng from the existing test files in
+# contrib/pngsuite.
+test -n "$MAKEPNG" || MAKEPNG=./makepng
+opts=
+
+mp(){
+ ${MAKEPNG} $opts $1 "$3" "$4" "$3-$4$2.png"
+}
+
+mpg(){
+ if test "$1" = "none"
+ then
+ mp "" "" "$2" "$3"
+ else
+ mp "--$1" "-$1" "$2" "$3"
+ fi
+}
+
+mptrans(){
+ if test "$1" = "none"
+ then
+ mp "--tRNS" "-tRNS" "$2" "$3"
+ else
+ mp "--tRNS --$1" "-$1-tRNS" "$2" "$3"
+ fi
+}
+
+case "$1" in
+ --small)
+ opts="--small";;&
+
+ --all|--small)
+ for g in none sRGB linear 1.8
+ do
+ for c in gray palette
+ do
+ for b in 1 2 4
+ do
+ mpg "$g" "$c" "$b"
+ mptrans "$g" "$c" "$b"
+ done
+ done
+
+ mpg "$g" palette 8
+ mptrans "$g" palette 8
+
+ for b in 8 16
+ do
+ for c in gray gray-alpha rgb rgb-alpha
+ do
+ mpg "$g" "$c" "$b"
+ done
+ for c in gray rgb
+ do
+ mptrans "$g" "$c" "$b"
+ done
+ done
+ done;;
+
+ --coverage)
+ # Comments below indicate cases known to be required and not duplicated
+ # in other (required) cases; the aim is to get a minimal set that gives
+ # the maxium code coverage.
+ mpg none gray-alpha 8 # required: code coverage, sRGB opaque component
+ mpg none palette 8 # required: basic palette read
+ mpg 1.8 gray 2 # required: tests gamma threshold code
+ mpg 1.8 palette 2 # required: code coverage
+ mpg 1.8 palette 4 # required: code coverage
+ mpg 1.8 palette 8 # error limits only
+ mpg linear palette 8 # error limits only
+ mpg linear rgb-alpha 16 # error limits only
+ mpg sRGB palette 1 # required: code coverage
+ mpg sRGB rgb-alpha 16 # required: code coverage: pngread.c:2422 untested
+ :;;
+
+ *)
+ echo "$0 $1: unknown argument, usage:" >&2
+ echo " $0 [--all|--coverage|--small]" >&2
+ exit 1
+esac
--- /dev/null
+/*- genpng
+ *
+ * COPYRIGHT: Written by John Cunningham Bowler, 2015.
+ * To the extent possible under law, the author has waived all copyright and
+ * related or neighboring rights to this work. This work is published from:
+ * United States.
+ *
+ * Generate a PNG with an alpha channel, correctly.
+ *
+ * This is a test case generator; the resultant PNG files are only of interest
+ * to those of us who care about whether the edges of circles are green, red,
+ * or yellow.
+ *
+ * The program generates an RGB+Alpha PNG of a given size containing the given
+ * shapes on a transparent background:
+ *
+ * genpng width height { shape }
+ * shape ::= color width shape x1 y1 x2 y2
+ *
+ * 'color' is:
+ *
+ * black white red green yellow blue brown purple pink orange gray cyan
+ *
+ * The point is to have colors that are linguistically meaningful plus that old
+ * bugbear of the department store dress murders, Cyan, the only color we argue
+ * about.
+ *
+ * 'shape' is:
+ *
+ * circle: an ellipse
+ * square: a rectangle
+ * line: a straight line
+ *
+ * Each shape is followed by four numbers, these are two points in the output
+ * coordinate space (as real numbers) which describe the circle, square, or
+ * line. The shape is filled if it is preceded by 'filled' (not valid for
+ * 'line') or is drawn with a line, in which case the width of the line must
+ * precede the shape.
+ *
+ * The whole set of information can be repeated as many times as desired:
+ *
+ * shape ::= color width shape x1 y1 x2 y2
+ *
+ * color ::= black|white|red|green|yellow|blue
+ * color ::= brown|purple|pink|orange|gray|cyan
+ * width ::= filled
+ * width ::= <number>
+ * shape ::= circle|square|line
+ * x1 ::= <number>
+ * x2 ::= <number>
+ * y1 ::= <number>
+ * y2 ::= <number>
+ *
+ * The output PNG is generated by down-sampling a 4x supersampled image using
+ * a bi-cubic filter. The bi-cubic has a 2 (output) pixel width, so an 8x8
+ * array of super-sampled points contribute to each output pixel. The value of
+ * a super-sampled point is found using an unfiltered, aliased, infinite
+ * precision image: Each shape from the last to the first is checked to see if
+ * the point is in the drawn area and, if it is, the color of the point is the
+ * color of the shape and the alpha is 1, if not the previous shape is checked.
+ *
+ * This is an aliased algorithm because no filtering is done; a point is either
+ * inside or outside each shape and 'close' points do not contribute to the
+ * sample. The down-sampling is relied on to correct the error of not using
+ * a filter.
+ *
+ * The line end-caps are 'flat'; they go through the points. The square line
+ * joins are mitres; the outside of the lines are continued to the point of
+ * intersection.
+ */
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <math.h>
+
+/* Normally use <png.h> here to get the installed libpng, but this is done to
+ * ensure the code picks up the local libpng implementation:
+ */
+#include "../../png.h"
+
+#if defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) && defined(PNG_STDIO_SUPPORTED)
+
+static const struct color
+{
+ const char *name;
+ double red;
+ double green;
+ double blue;
+} colors[] =
+/* color ::= black|white|red|green|yellow|blue
+ * color ::= brown|purple|pink|orange|gray|cyan
+ */
+{
+ { "black", 0, 0, 0 },
+ { "white", 1, 1, 1 },
+ { "red", 1, 0, 0 },
+ { "green", 0, 1, 0 },
+ { "yellow", 1, 1, 0 },
+ { "blue", 0, 0, 1 },
+ { "brown", .5, .125, 0 },
+ { "purple", 1, 0, 1 },
+ { "pink", 1, .5, .5 },
+ { "orange", 1, .5, 0 },
+ { "gray", 0, .5, .5 },
+ { "cyan", 0, 1, 1 }
+};
+#define color_count ((sizeof colors)/(sizeof colors[0]))
+
+static const struct color *
+color_of(const char *arg)
+{
+ int icolor = color_count;
+
+ while (--icolor >= 0)
+ {
+ if (strcmp(colors[icolor].name, arg) == 0)
+ return colors+icolor;
+ }
+
+ fprintf(stderr, "genpng: invalid color %s\n", arg);
+ exit(1);
+}
+
+static double
+width_of(const char *arg)
+{
+ if (strcmp(arg, "filled") == 0)
+ return 0;
+
+ else
+ {
+ char *ep = NULL;
+ double w = strtod(arg, &ep);
+
+ if (ep != NULL && *ep == 0 && w > 0)
+ return w;
+ }
+
+ fprintf(stderr, "genpng: invalid line width %s\n", arg);
+ exit(1);
+}
+
+static double
+coordinate_of(const char *arg)
+{
+ char *ep = NULL;
+ double w = strtod(arg, &ep);
+
+ if (ep != NULL && *ep == 0)
+ return w;
+
+ fprintf(stderr, "genpng: invalid coordinate value %s\n", arg);
+ exit(1);
+}
+
+struct arg; /* forward declaration */
+
+typedef int (*shape_fn_ptr)(const struct arg *arg, double x, double y);
+ /* A function to determine if (x,y) is inside the shape.
+ *
+ * There are two implementations:
+ *
+ * inside_fn: returns true if the point is inside
+ * check_fn: returns;
+ * -1: the point is outside the shape by more than the filter width (2)
+ * 0: the point may be inside the shape
+ * +1: the point is inside the shape by more than the filter width
+ */
+#define OUTSIDE (-1)
+#define INSIDE (1)
+
+struct arg
+{
+ const struct color *color;
+ shape_fn_ptr inside_fn;
+ shape_fn_ptr check_fn;
+ double width; /* line width, 0 for 'filled' */
+ double x1, y1, x2, y2;
+};
+
+/* IMPLEMENTATION NOTE:
+ *
+ * We want the contribution of each shape to the sample corresponding to each
+ * pixel. This could be obtained by super sampling the image to infinite
+ * dimensions, finding each point within the shape and assigning that a value
+ * '1' while leaving every point outside the shape with value '0' then
+ * downsampling to the image size with sinc; computationally very expensive.
+ *
+ * Approximations are as follows:
+ *
+ * 1) If the pixel coordinate is within the shape assume the sample has the
+ * shape color and is opaque, else assume there is no contribution from
+ * the shape.
+ *
+ * This is the equivalent of aliased rendering or resampling an image with
+ * a block filter. The maximum error in the calculated alpha (which will
+ * always be 0 or 1) is 0.5.
+ *
+ * 2) If the shape is within a square of size 1x1 centered on the pixel assume
+ * that the shape obscures an amount of the pixel equal to its area within
+ * that square.
+ *
+ * This is the equivalent of 'pixel coverage' alpha calculation or resampling
+ * an image with a bi-linear filter. The maximum error is over 0.2, but the
+ * results are often acceptable.
+ *
+ * This can be approximated by applying (1) to a super-sampled image then
+ * downsampling with a bi-linear filter. The error in the super-sampled
+ * image is 0.5 per sample, but the resampling reduces this.
+ *
+ * 3) Use a better filter with a super-sampled image; in the limit this is the
+ * sinc() approach.
+ *
+ * 4) Do the geometric calculation; a bivariate definite integral across the
+ * shape, unfortunately this means evaluating Si(x), the integral of sinc(x),
+ * which is still a lot of math.
+ *
+ * This code uses approach (3) with a bi-cubic filter and 8x super-sampling
+ * and method (1) for the super-samples. This means that the sample is either
+ * 0 or 1, depending on whether the sub-pixel is within or outside the shape.
+ * The bi-cubic weights are also fixed and the 16 required weights are
+ * pre-computed here (note that the 'scale' setting will need to be changed if
+ * 'super' is increased).
+ *
+ * The code also calculates a sum to the edge of the filter. This is not
+ * currently used by could be used to optimize the calculation.
+ */
+#if 0 /* bc code */
+scale=10
+super=8
+define bicubic(x) {
+ if (x <= 1) return (1.5*x - 2.5)*x*x + 1;
+ if (x < 2) return (((2.5 - 0.5*x)*x - 4)*x + 2);
+ return 0;
+}
+define sum(x) {
+ auto s;
+ s = 0;
+ while (x < 2*super) {
+ s = s + bicubic(x/super);
+ x = x + 1;
+ }
+ return s;
+}
+define results(x) {
+ auto b, s;
+ b = bicubic(x/super);
+ s = sum(x);
+
+ print " /*", x, "*/ { ", b, ", ", s, " }";
+ return 1;
+}
+x=0
+while (x<2*super) {
+ x = x + results(x)
+ if (x < 2*super) print ","
+ print "\n"
+}
+quit
+#endif
+
+#define BICUBIC1(x) /* |x| <= 1 */ ((1.5*(x)* - 2.5)*(x)*(x) + 1)
+#define BICUBIC2(x) /* 1 < |x| < 2 */ (((2.5 - 0.5*(x))*(x) - 4)*(x) + 2)
+#define FILTER_WEIGHT 9 /* Twice the first sum below */
+#define FILTER_WIDTH 2 /* Actually half the width; -2..+2 */
+#define FILTER_STEPS 8 /* steps per filter unit */
+static const double
+bicubic[16][2] =
+{
+ /* These numbers are exact; the weight for the filter is 1/9, but this
+ * would make the numbers inexact, so it is not included here.
+ */
+ /* bicubic sum */
+ /* 0*/ { 1.0000000000, 4.5000000000 },
+ /* 1*/ { .9638671875, 3.5000000000 },
+ /* 2*/ { .8671875000, 2.5361328125 },
+ /* 3*/ { .7275390625, 1.6689453125 },
+ /* 4*/ { .5625000000, .9414062500 },
+ /* 5*/ { .3896484375, .3789062500 },
+ /* 6*/ { .2265625000, -.0107421875 },
+ /* 7*/ { .0908203125, -.2373046875 },
+ /* 8*/ { 0, -.3281250000 },
+ /* 9*/ { -.0478515625, -.3281250000 },
+ /*10*/ { -.0703125000, -.2802734375 },
+ /*11*/ { -.0732421875, -.2099609375 },
+ /*12*/ { -.0625000000, -.1367187500 },
+ /*13*/ { -.0439453125, -.0742187500 },
+ /*14*/ { -.0234375000, -.0302734375 },
+ /*15*/ { -.0068359375, -.0068359375 }
+};
+
+static double
+alpha_calc(const struct arg *arg, double x, double y)
+{
+ /* For [x-2..x+2],[y-2,y+2] calculate the weighted bicubic given a function
+ * which tells us whether a point is inside or outside the shape. First
+ * check if we need to do this at all:
+ */
+ switch (arg->check_fn(arg, x, y))
+ {
+ case OUTSIDE:
+ return 0; /* all samples outside the shape */
+
+ case INSIDE:
+ return 1; /* all samples inside the shape */
+
+ default:
+ {
+ int dy;
+ double alpha = 0;
+
+# define FILTER_D (FILTER_WIDTH*FILTER_STEPS-1)
+ for (dy=-FILTER_D; dy<=FILTER_D; ++dy)
+ {
+ double wy = bicubic[abs(dy)][0];
+
+ if (wy != 0)
+ {
+ double alphay = 0;
+ int dx;
+
+ for (dx=-FILTER_D; dx<=FILTER_D; ++dx)
+ {
+ double wx = bicubic[abs(dx)][0];
+
+ if (wx != 0 && arg->inside_fn(arg, x+dx/16, y+dy/16))
+ alphay += wx;
+ }
+
+ alpha += wy * alphay;
+ }
+ }
+
+ /* This needs to be weighted for each dimension: */
+ return alpha / (FILTER_WEIGHT*FILTER_WEIGHT);
+ }
+ }
+}
+
+/* These are the shape functions. */
+/* "square",
+ * { inside_square_filled, check_square_filled },
+ * { inside_square, check_square }
+ */
+static int
+square_check(double x, double y, double x1, double y1, double x2, double y2)
+ /* Is x,y inside the square (x1,y1)..(x2,y2)? */
+{
+ /* Do a modified Cohen-Sutherland on one point, bit patterns that indicate
+ * 'outside' are:
+ *
+ * x<x1 | x<y1 | x<x2 | x<y2
+ * 0 x 0 x To the right
+ * 1 x 1 x To the left
+ * x 0 x 0 Below
+ * x 1 x 1 Above
+ *
+ * So 'inside' is (x<x1) != (x<x2) && (y<y1) != (y<y2);
+ */
+ return ((x<x1) ^ (x<x2)) & ((y<y1) ^ (y<y2));
+}
+
+static int
+inside_square_filled(const struct arg *arg, double x, double y)
+{
+ return square_check(x, y, arg->x1, arg->y1, arg->x2, arg->y2);
+}
+
+static int
+square_check_line(const struct arg *arg, double x, double y, double w)
+ /* Check for a point being inside the boundaries implied by the given arg
+ * and assuming a width 2*w each side of the boundaries. This returns the
+ * 'check' INSIDE/OUTSIDE/0 result but note the semantics:
+ *
+ * +--------------+
+ * | | OUTSIDE
+ * | INSIDE |
+ * | |
+ * +--------------+
+ *
+ * And '0' means within the line boundaries.
+ */
+{
+ double cx = (arg->x1+arg->x2)/2;
+ double wx = fabs(arg->x1-arg->x2)/2;
+ double cy = (arg->y1+arg->y2)/2;
+ double wy = fabs(arg->y1-arg->y2)/2;
+
+ if (square_check(x, y, cx-wx-w, cy-wy-w, cx+wx+w, cy+wy+w))
+ {
+ /* Inside, but maybe too far; check for the redundant case where
+ * the lines overlap:
+ */
+ wx -= w;
+ wy -= w;
+ if (wx > 0 && wy > 0 && square_check(x, y, cx-wx, cy-wy, cx+wx, cy+wy))
+ return INSIDE; /* between (inside) the boundary lines. */
+
+ return 0; /* inside the lines themselves. */
+ }
+
+ return OUTSIDE; /* outside the boundary lines. */
+}
+
+static int
+check_square_filled(const struct arg *arg, double x, double y)
+{
+ /* The filter extends +/-FILTER_WIDTH each side of each output point, so
+ * the check has to expand and contract the square by that amount; '0'
+ * means close enough to the edge of the square that the bicubic filter has
+ * to be run, OUTSIDE means alpha==0, INSIDE means alpha==1.
+ */
+ return square_check_line(arg, x, y, FILTER_WIDTH);
+}
+
+static int
+inside_square(const struct arg *arg, double x, double y)
+{
+ /* Return true if within the drawn lines, else false, no need to distinguish
+ * INSIDE vs OUTSIDE here:
+ */
+ return square_check_line(arg, x, y, arg->width/2) == 0;
+}
+
+static int
+check_square(const struct arg *arg, double x, double y)
+{
+ /* So for this function a result of 'INSIDE' means inside the actual lines.
+ */
+ double w = arg->width/2;
+
+ if (square_check_line(arg, x, y, w+FILTER_WIDTH) == 0)
+ {
+ /* Somewhere close to the boundary lines. If far enough inside one of
+ * them then we can return INSIDE:
+ */
+ w -= FILTER_WIDTH;
+
+ if (w > 0 && square_check_line(arg, x, y, w) == 0)
+ return INSIDE;
+
+ /* Point is somewhere in the filter region: */
+ return 0;
+ }
+
+ else /* Inside or outside the square by more than w+FILTER_WIDTH. */
+ return OUTSIDE;
+}
+
+/* "circle",
+ * { inside_circle_filled, check_circle_filled },
+ * { inside_circle, check_circle }
+ *
+ * The functions here are analoguous to the square ones; however, they check
+ * the corresponding ellipse as opposed to the rectangle.
+ */
+static int
+circle_check(double x, double y, double x1, double y1, double x2, double y2)
+{
+ if (square_check(x, y, x1, y1, x2, y2))
+ {
+ /* Inside the square, so maybe inside the circle too: */
+ const double cx = (x1 + x2)/2;
+ const double cy = (y1 + y2)/2;
+ const double dx = x1 - x2;
+ const double dy = y1 - y2;
+
+ x = (x - cx)/dx;
+ y = (y - cy)/dy;
+
+ /* It is outside if the distance from the center is more than half the
+ * diameter:
+ */
+ return x*x+y*y < .25;
+ }
+
+ return 0; /* outside */
+}
+
+static int
+inside_circle_filled(const struct arg *arg, double x, double y)
+{
+ return circle_check(x, y, arg->x1, arg->y1, arg->x2, arg->y2);
+}
+
+static int
+circle_check_line(const struct arg *arg, double x, double y, double w)
+ /* Check for a point being inside the boundaries implied by the given arg
+ * and assuming a width 2*w each side of the boundaries. This function has
+ * the same semantic as square_check_line but tests the circle.
+ */
+{
+ double cx = (arg->x1+arg->x2)/2;
+ double wx = fabs(arg->x1-arg->x2)/2;
+ double cy = (arg->y1+arg->y2)/2;
+ double wy = fabs(arg->y1-arg->y2)/2;
+
+ if (circle_check(x, y, cx-wx-w, cy-wy-w, cx+wx+w, cy+wy+w))
+ {
+ /* Inside, but maybe too far; check for the redundant case where
+ * the lines overlap:
+ */
+ wx -= w;
+ wy -= w;
+ if (wx > 0 && wy > 0 && circle_check(x, y, cx-wx, cy-wy, cx+wx, cy+wy))
+ return INSIDE; /* between (inside) the boundary lines. */
+
+ return 0; /* inside the lines themselves. */
+ }
+
+ return OUTSIDE; /* outside the boundary lines. */
+}
+
+static int
+check_circle_filled(const struct arg *arg, double x, double y)
+{
+ return circle_check_line(arg, x, y, FILTER_WIDTH);
+}
+
+static int
+inside_circle(const struct arg *arg, double x, double y)
+{
+ return circle_check_line(arg, x, y, arg->width/2) == 0;
+}
+
+static int
+check_circle(const struct arg *arg, double x, double y)
+{
+ /* Exactly as the 'square' code. */
+ double w = arg->width/2;
+
+ if (circle_check_line(arg, x, y, w+FILTER_WIDTH) == 0)
+ {
+ w -= FILTER_WIDTH;
+
+ if (w > 0 && circle_check_line(arg, x, y, w) == 0)
+ return INSIDE;
+
+ /* Point is somewhere in the filter region: */
+ return 0;
+ }
+
+ else /* Inside or outside the square by more than w+FILTER_WIDTH. */
+ return OUTSIDE;
+}
+
+/* "line",
+ * { NULL, NULL }, There is no 'filled' line.
+ * { inside_line, check_line }
+ */
+static int
+line_check(double x, double y, double x1, double y1, double x2, double y2,
+ double w, double expand)
+{
+ /* Shift all the points to (arg->x1, arg->y1) */
+ double lx = x2 - x1;
+ double ly = y2 - y1;
+ double len2 = lx*lx + ly*ly;
+ double cross, dot;
+
+ x -= x1;
+ y -= y1;
+
+ /* The dot product is the distance down the line, the cross product is
+ * the distance away from the line:
+ *
+ * distance = |cross| / sqrt(len2)
+ */
+ cross = x * ly - y * lx;
+
+ /* If 'distance' is more than w the point is definitely outside the line:
+ *
+ * distance >= w
+ * |cross| >= w * sqrt(len2)
+ * cross^2 >= w^2 * len2:
+ */
+ if (cross*cross >= (w+expand)*(w+expand)*len2)
+ return 0; /* outside */
+
+ /* Now find the distance *along* the line; this comes from the dot product
+ * lx.x+ly.y. The actual distance (in pixels) is:
+ *
+ * distance = dot / sqrt(len2)
+ */
+ dot = lx * x + ly * y;
+
+ /* The test for 'outside' is:
+ *
+ * distance < 0 || distance > sqrt(len2)
+ * -> dot / sqrt(len2) > sqrt(len2)
+ * -> dot > len2
+ *
+ * But 'expand' is used for the filter width and needs to be handled too:
+ */
+ return dot > -expand && dot < len2+expand;
+}
+
+static int
+inside_line(const struct arg *arg, double x, double y)
+{
+ return line_check(x, y, arg->x1, arg->y1, arg->x2, arg->y2, arg->width/2, 0);
+}
+
+static int
+check_line(const struct arg *arg, double x, double y)
+{
+ /* The end caps of the line must be checked too; it's not enough just to
+ * widen the line by FILTER_WIDTH; 'expand' exists for this purpose:
+ */
+ if (line_check(x, y, arg->x1, arg->y1, arg->x2, arg->y2, arg->width/2,
+ FILTER_WIDTH))
+ {
+ /* Inside the line+filter; far enough inside that the filter isn't
+ * required?
+ */
+ if (arg->width > 2*FILTER_WIDTH &&
+ line_check(x, y, arg->x1, arg->y1, arg->x2, arg->y2, arg->width/2,
+ -FILTER_WIDTH))
+ return INSIDE;
+
+ return 0;
+ }
+
+ return OUTSIDE;
+}
+
+static const struct
+{
+ const char *name;
+ shape_fn_ptr function[2/*fill,line*/][2];
+# define FN_INSIDE 0
+# define FN_CHECK 1
+} shape_defs[] =
+{
+ { "square",
+ { { inside_square_filled, check_square_filled },
+ { inside_square, check_square } }
+ },
+ { "circle",
+ { { inside_circle_filled, check_circle_filled },
+ { inside_circle, check_circle } }
+ },
+ { "line",
+ { { NULL, NULL },
+ { inside_line, check_line } }
+ }
+};
+
+#define shape_count ((sizeof shape_defs)/(sizeof shape_defs[0]))
+
+static shape_fn_ptr
+shape_of(const char *arg, double width, int f)
+{
+ unsigned int i;
+
+ for (i=0; i<shape_count; ++i) if (strcmp(shape_defs[i].name, arg) == 0)
+ {
+ shape_fn_ptr fn = shape_defs[i].function[width != 0][f];
+
+ if (fn != NULL)
+ return fn;
+
+ fprintf(stderr, "genpng: %s %s not supported\n",
+ width == 0 ? "filled" : "unfilled", arg);
+ exit(1);
+ }
+
+ fprintf(stderr, "genpng: %s: not a valid shape name\n", arg);
+ exit(1);
+}
+
+static void
+parse_arg(struct arg *arg, const char **argv/*7 arguments*/)
+{
+ /* shape ::= color width shape x1 y1 x2 y2 */
+ arg->color = color_of(argv[0]);
+ arg->width = width_of(argv[1]);
+ arg->inside_fn = shape_of(argv[2], arg->width, FN_INSIDE);
+ arg->check_fn = shape_of(argv[2], arg->width, FN_CHECK);
+ arg->x1 = coordinate_of(argv[3]);
+ arg->y1 = coordinate_of(argv[4]);
+ arg->x2 = coordinate_of(argv[5]);
+ arg->y2 = coordinate_of(argv[6]);
+}
+
+static png_uint_32
+read_wh(const char *name, const char *str)
+ /* read a PNG width or height */
+{
+ char *ep = NULL;
+ unsigned long ul = strtoul(str, &ep, 10);
+
+ if (ep != NULL && *ep == 0 && ul > 0 && ul <= 0x7fffffff)
+ return (png_uint_32)/*SAFE*/ul;
+
+ fprintf(stderr, "genpng: %s: invalid number %s\n", name, str);
+ exit(1);
+}
+
+static void
+pixel(png_uint_16p p, struct arg *args, int nargs, double x, double y)
+{
+ /* Fill in the pixel by checking each shape (args[nargs]) for effects on
+ * the corresponding sample:
+ */
+ double r=0, g=0, b=0, a=0;
+
+ while (--nargs >= 0 && a != 1)
+ {
+ /* NOTE: alpha_calc can return a value outside the range 0..1 with the
+ * bicubic filter.
+ */
+ const double alpha = alpha_calc(args+nargs, x, y) * (1-a);
+
+ r += alpha * args[nargs].color->red;
+ g += alpha * args[nargs].color->green;
+ b += alpha * args[nargs].color->blue;
+ a += alpha;
+ }
+
+ /* 'a' may be negative or greater than 1; if it is, negative clamp the
+ * pixel to 0 if >1 clamp r/g/b:
+ */
+ if (a > 0)
+ {
+ if (a > 1)
+ {
+ if (r > 1) r = 1;
+ if (g > 1) g = 1;
+ if (b > 1) b = 1;
+ a = 1;
+ }
+
+ /* And fill in the pixel: */
+ p[0] = (png_uint_16)/*SAFE*/round(r * 65535);
+ p[1] = (png_uint_16)/*SAFE*/round(g * 65535);
+ p[2] = (png_uint_16)/*SAFE*/round(b * 65535);
+ p[3] = (png_uint_16)/*SAFE*/round(a * 65535);
+ }
+
+ else
+ p[3] = p[2] = p[1] = p[0] = 0;
+}
+
+int
+main(int argc, const char **argv)
+{
+ int convert_to_8bit = 0;
+
+ /* There is one option: --8bit: */
+ if (argc > 1 && strcmp(argv[1], "--8bit") == 0)
+ --argc, ++argv, convert_to_8bit = 1;
+
+ if (argc >= 3)
+ {
+ png_uint_16p buffer;
+ int nshapes;
+ png_image image;
+# define max_shapes 256
+ struct arg arg_list[max_shapes];
+
+ /* The libpng Simplified API write code requires a fully initialized
+ * structure.
+ */
+ memset(&image, 0, sizeof image);
+ image.version = PNG_IMAGE_VERSION;
+ image.opaque = NULL;
+ image.width = read_wh("width", argv[1]);
+ image.height = read_wh("height", argv[2]);
+ image.format = PNG_FORMAT_LINEAR_RGB_ALPHA;
+ image.flags = 0;
+ image.colormap_entries = 0;
+
+ /* Check the remainder of the arguments */
+ for (nshapes=0; 3+7*(nshapes+1) <= argc && nshapes < max_shapes;
+ ++nshapes)
+ parse_arg(arg_list+nshapes, argv+3+7*nshapes);
+
+ if (3+7*nshapes != argc)
+ {
+ fprintf(stderr, "genpng: %s: too many arguments\n", argv[3+7*nshapes]);
+ return 1;
+ }
+
+ /* Create the buffer: */
+ buffer = malloc(PNG_IMAGE_SIZE(image));
+
+ if (buffer != NULL)
+ {
+ png_uint_32 y;
+
+ /* Write each row... */
+ for (y=0; y<image.height; ++y)
+ {
+ png_uint_32 x;
+
+ /* Each pixel in each row: */
+ for (x=0; x<image.width; ++x)
+ pixel(buffer + 4*(x + y*image.width), arg_list, nshapes, x, y);
+ }
+
+ /* Write the result (to stdout) */
+ if (png_image_write_to_stdio(&image, stdout, convert_to_8bit,
+ buffer, 0/*row_stride*/, NULL/*colormap*/))
+ {
+ free(buffer);
+ return 0; /* success */
+ }
+
+ else
+ fprintf(stderr, "genpng: write stdout: %s\n", image.message);
+
+ free(buffer);
+ }
+
+ else
+ fprintf(stderr, "genpng: out of memory: %lu bytes\n",
+ (unsigned long)PNG_IMAGE_SIZE(image));
+ }
+
+ else
+ {
+ /* Wrong number of arguments */
+ fprintf(stderr, "genpng: usage: genpng [--8bit] width height {shape}\n"
+ " Generate a transparent PNG in RGBA (truecolor+alpha) format\n"
+ " containing the given shape or shapes. Shapes are defined:\n"
+ "\n"
+ " shape ::= color width shape x1 y1 x2 y2\n"
+ " color ::= black|white|red|green|yellow|blue\n"
+ " color ::= brown|purple|pink|orange|gray|cyan\n"
+ " width ::= filled|<number>\n"
+ " shape ::= circle|square|line\n"
+ " x1,x2 ::= <number>\n"
+ " y1,y2 ::= <number>\n"
+ "\n"
+ " Numbers are floating point numbers describing points relative to\n"
+ " the top left of the output PNG as pixel coordinates. The 'width'\n"
+ " parameter is either the width of the line (in output pixels) used\n"
+ " to draw the shape or 'filled' to indicate that the shape should\n"
+ " be filled with the color.\n"
+ "\n"
+ " Colors are interpreted loosely to give access to the eight full\n"
+ " intensity RGB values:\n"
+ "\n"
+ " black, red, green, blue, yellow, cyan, purple, white,\n"
+ "\n"
+ " Cyan is full intensity blue+green; RGB(0,1,1), plus the following\n"
+ " lower intensity values:\n"
+ "\n"
+ " brown: red+orange: RGB(0.5, 0.125, 0) (dark red+orange)\n"
+ " pink: red+white: RGB(1.0, 0.5, 0.5)\n"
+ " orange: red+yellow: RGB(1.0, 0.5, 0)\n"
+ " gray: black+white: RGB(0.5, 0.5, 0.5)\n"
+ "\n"
+ " The RGB values are selected to make detection of aliasing errors\n"
+ " easy. The names are selected to make the description of errors\n"
+ " easy.\n"
+ "\n"
+ " The PNG is written to stdout, if --8bit is given a 32bpp RGBA sRGB\n"
+ " file is produced, otherwise a 64bpp RGBA linear encoded file is\n"
+ " written.\n");
+ }
+
+ return 1;
+}
+#endif /* SIMPLIFIED_WRITE && STDIO */
/* png-fix-itxt version 1.0.0
*
- * Copyright 2013 Glenn Randers-Pehrson
- * Last changed in libpng 1.6.3 [July 18, 2013]
+ * Copyright 2015 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.18 [July 23, 2015]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*
- * Usage:
+ * Usage:
*
* png-fix-itxt.exe < bad.png > good.png
*
#define MAX_LENGTH 500000
-#define GETBREAK ((unsigned char)(inchar=getchar())); if (inchar == EOF) break
-
+/* Read one character (inchar), also return octet (c), break if EOF */
+#define GETBREAK inchar=getchar(); \
+ c=(inchar & 0xffU);\
+ if (inchar != c) break
int
main(void)
{
/* Skip 8-byte signature */
for (i=8; i; i--)
{
- c=GETBREAK;
+ GETBREAK;
putchar(c);
}
-if (inchar != EOF)
+if (inchar == c) /* !EOF */
for (;;)
{
/* Read the length */
unsigned long length; /* must be 32 bits! */
- c=GETBREAK; buf[0] = c; length = c; length <<= 8;
- c=GETBREAK; buf[1] = c; length += c; length <<= 8;
- c=GETBREAK; buf[2] = c; length += c; length <<= 8;
- c=GETBREAK; buf[3] = c; length += c;
+ GETBREAK; buf[0] = c; length = c; length <<= 8;
+ GETBREAK; buf[1] = c; length += c; length <<= 8;
+ GETBREAK; buf[2] = c; length += c; length <<= 8;
+ GETBREAK; buf[3] = c; length += c;
/* Read the chunkname */
- c=GETBREAK; buf[4] = c;
- c=GETBREAK; buf[5] = c;
- c=GETBREAK; buf[6] = c;
- c=GETBREAK; buf[7] = c;
+ GETBREAK; buf[4] = c;
+ GETBREAK; buf[5] = c;
+ GETBREAK; buf[6] = c;
+ GETBREAK; buf[7] = c;
/* The iTXt chunk type expressed as integers is (105, 84, 88, 116) */
/* Copy the data bytes */
for (i=8; i < length + 12; i++)
{
- c=GETBREAK; buf[i] = c;
+ GETBREAK; buf[i] = c;
}
+ if (inchar != c) /* EOF */
+ break;
+
/* Calculate the CRC */
crc = crc32(crc, buf+4, (uInt)length+4);
for (;;)
{
/* Check the CRC */
- if (((crc >> 24) & 0xff) == buf[length+8] &&
- ((crc >> 16) & 0xff) == buf[length+9] &&
- ((crc >> 8) & 0xff) == buf[length+10] &&
- ((crc ) & 0xff) == buf[length+11])
+ if (((crc >> 24) & 0xffU) == buf[length+8] &&
+ ((crc >> 16) & 0xffU) == buf[length+9] &&
+ ((crc >> 8) & 0xffU) == buf[length+10] &&
+ ((crc ) & 0xffU) == buf[length+11])
break;
length++;
if (length >= MAX_LENGTH-12)
break;
- c=GETBREAK;
- buf[length+11]=c;
+ GETBREAK;
+ buf[length+11] = c;
/* Update the CRC */
crc = crc32(crc, buf+7+length, 1);
}
+ if (inchar != c) /* EOF */
+ break;
+
/* Update length bytes */
- buf[0] = (unsigned char)((length << 24) & 0xff);
- buf[1] = (unsigned char)((length << 16) & 0xff);
- buf[2] = (unsigned char)((length << 8) & 0xff);
- buf[3] = (unsigned char)((length ) & 0xff);
+ buf[0] = (unsigned char)((length >> 24) & 0xffU);
+ buf[1] = (unsigned char)((length >> 16) & 0xffU);
+ buf[2] = (unsigned char)((length >> 8) & 0xffU);
+ buf[3] = (unsigned char)((length ) & 0xffU);
/* Write the fixed iTXt chunk (length, name, data, crc) */
for (i=0; i<length+12; i++)
else
{
+ if (inchar != c) /* EOF */
+ break;
+
/* Copy bytes that were already read (length and chunk name) */
for (i=0; i<8; i++)
putchar(buf[i]);
/* Copy data bytes and CRC */
for (i=8; i< length+12; i++)
{
- c=GETBREAK;
+ GETBREAK;
putchar(c);
}
- if (inchar == EOF)
+ if (inchar != c) /* EOF */
{
break;
}
break;
}
- if (inchar == EOF)
+ if (inchar != c) /* EOF */
break;
if (buf[4] == 73 && buf[5] == 69 && buf[6] == 78 && buf[7] == 68)
/* pngfix.c
*
- * Copyright (c) 2014 John Cunningham Bowler
+ * Copyright (c) 2014-2016 John Cunningham Bowler
*
- * Last changed in libpng 1.6.10 [March 6, 2014]
+ * Last changed in libpng 1.6.21 [January 15, 2016]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*
- * Tool to check and fix the zlib inflate 'too far back' problem, see the usage
- * message for more information.
+ * Tool to check and fix the zlib inflate 'too far back' problem.
+ * See the usage message for more information.
*/
#include <stdlib.h>
#include <stdio.h>
# error "pngfix will not work with libpng prior to 1.6.3"
#endif
-#if defined(PNG_READ_SUPPORTED) && defined(PNG_EASY_ACCESS_SUPPORTED)
+#ifdef PNG_SETJMP_SUPPORTED
+#include <setjmp.h>
+
+#if defined(PNG_READ_SUPPORTED) && defined(PNG_EASY_ACCESS_SUPPORTED) &&\
+ (defined(PNG_READ_DEINTERLACE_SUPPORTED) ||\
+ defined(PNG_READ_INTERLACING_SUPPORTED))
+
/* zlib.h defines the structure z_stream, an instance of which is included
* in this structure and is required for decompressing the LZ compressed
* data in PNG files.
* with older builds.
*/
#if ZLIB_VERNUM < 0x1260
-# define PNGZ_MSG_CAST(s) png_constcast(char*,s)
-# define PNGZ_INPUT_CAST(b) png_constcast(png_bytep,b)
+# define PNGZ_MSG_CAST(s) constcast(char*,s)
+# define PNGZ_INPUT_CAST(b) constcast(png_bytep,b)
#else
# define PNGZ_MSG_CAST(s) (s)
# define PNGZ_INPUT_CAST(b) (b)
/* Copied from pngpriv.h */
#ifdef __cplusplus
-# define png_voidcast(type, value) static_cast<type>(value)
-# define png_constcast(type, value) const_cast<type>(value)
-# define png_aligncast(type, value) \
+# define voidcast(type, value) static_cast<type>(value)
+# define constcast(type, value) const_cast<type>(value)
+# define aligncast(type, value) \
static_cast<type>(static_cast<void*>(value))
-# define png_aligncastconst(type, value) \
+# define aligncastconst(type, value) \
static_cast<type>(static_cast<const void*>(value))
#else
-# define png_voidcast(type, value) (value)
-# define png_constcast(type, value) ((type)(value))
-# define png_aligncast(type, value) ((void*)(value))
-# define png_aligncastconst(type, value) ((const void*)(value))
+# define voidcast(type, value) (value)
+# define constcast(type, value) ((type)(value))
+# define aligncast(type, value) ((void*)(value))
+# define aligncastconst(type, value) ((const void*)(value))
#endif /* __cplusplus */
#if PNG_LIBPNG_VER < 10700
#define png_zTXt PNG_U32(122, 84, 88, 116)
#endif
-/* The 8 byte signature as a pair of 32 bit quantities */
+/* The 8-byte signature as a pair of 32-bit quantities */
#define sig1 PNG_U32(137, 80, 78, 71)
#define sig2 PNG_U32( 13, 10, 26, 10)
*/
#define UNREACHED 0
-/* 80-bit number handling - a PNG image can be up to (2^31-1)x(2^31-1) 8 byte
+/* 80-bit number handling - a PNG image can be up to (2^31-1)x(2^31-1) 8-byte
* (16-bit RGBA) pixels in size; that's less than 2^65 bytes or 2^68 bits, so
* arithmetic of 80-bit numbers is sufficient. This representation uses an
* arbitrary length array of png_uint_16 digits (0..65535). The representation
a_digits = uarb_mult_digit(acc, a_digits, num, n_digits,
(png_uint_16)(val & 0xffff));
- /* Because n_digits and val are >0 the following must be true: */
- assert(a_digits > 0);
-
val >>= 16;
if (val > 0)
a_digits = uarb_mult_digit(acc+1, a_digits-1, num, n_digits,
(png_uint_16)val) + 1;
+
+ /* Because n_digits and val are >0 the following must be true: */
+ assert(a_digits > 0);
}
return a_digits;
make_random_bytes(png_uint_32* seed, void* pv, size_t size)
{
png_uint_32 u0 = seed[0], u1 = seed[1];
- png_bytep bytes = png_voidcast(png_bytep, pv);
+ png_bytep bytes = voidcast(png_bytep, pv);
/* There are thirty-three bits; the next bit in the sequence is bit-33 XOR
* bit-20. The top 1 bit is in u1, the bottom 32 are in u0.
c &= ~PNG_U32(32,32,0,32);
t = (c & ~0x1f1f1f1f) ^ 0x40404040;
- /* Subtract 65 for each 8 bit quantity, this must not overflow
+ /* Subtract 65 for each 8-bit quantity, this must not overflow
* and each byte must then be in the range 0-25.
*/
c -= PNG_U32(65,65,65,65);
if (length < tail->length) /* arithmetic overflow */
length = tail->length;
-
- next = png_voidcast(IDAT_list*, malloc(IDAT_list_size(NULL, length)));
+
+ next = voidcast(IDAT_list*, malloc(IDAT_list_size(NULL, length)));
CLEAR(*next);
/* The caller must handle this: */
else if (isspace(UCHAR_MAX & *str))
putc('_', out);
-
+
else
fprintf(out, "\\%.3o", *str);
}
list->count = 0;
file->idat->idat_list_tail = list;
}
-
+
/* And fill in the next IDAT information buffer. */
list->lengths[(list->count)++] = file->chunk->chunk_length;
*
* z-rc is the zlib failure code; message is the error message with
* spaces replaced by '-'. The compressed byte count indicates where
- * in the zlib stream the error occured.
+ * in the zlib stream the error occurred.
*/
type_name(zlib->chunk->chunk_type, stdout);
printf(" SKP %s %d %s ", zlib_flevel(zlib), zlib->file_bits,
/* These values are sticky across reset (in addition to the stuff in the
* first block, which is actually constant.)
*/
- zlib->file_bits = 16;
+ zlib->file_bits = 24;
zlib->ok_bits = 16; /* unset */
zlib->cksum = 0; /* set when a checksum error is detected */
zlib->file_bits = file_bits;
/* Check against the existing value - it may not need to be
- * changed.
+ * changed. Note that a bogus file_bits is allowed through once,
+ * to see if it works, but the window_bits value is set to 15,
+ * the maximum.
*/
if (new_bits == 0) /* no change */
- zlib->window_bits = file_bits;
+ zlib->window_bits = ((file_bits > 15) ? 15 : file_bits);
else if (new_bits != file_bits) /* rewrite required */
bIn = (png_byte)((bIn & 0xf) + ((new_bits-8) << 4));
if (bIn != b2)
{
/* If the first byte wasn't changed this indicates an error in
- * the checksum calculation; signal this by setting file_bits
- * (not window_bits) to 0.
+ * the checksum calculation; signal this by setting 'cksum'.
*/
if (zlib->file_bits == zlib->window_bits)
zlib->cksum = 1;
{
struct chunk *chunk = zlib->chunk;
int rc;
-
+
assert(zlib->rewrite_offset < chunk->chunk_length);
rc = zlib_advance(zlib, chunk->chunk_length - zlib->rewrite_offset);
/* This just returns the (file*). The chunk and idat control structures
* don't always exist.
*/
- struct control *control = png_voidcast(struct control*,
+ struct control *control = voidcast(struct control*,
png_get_error_ptr(png_ptr));
return &control->file;
}
static void
allocate(struct file *file, int allocate_idat)
{
- struct control *control = png_voidcast(struct control*, file->alloc_ptr);
+ struct control *control = voidcast(struct control*, file->alloc_ptr);
if (allocate_idat)
{
{
png_structp png_ptr;
png_infop info_ptr = NULL;
- volatile png_bytep row = NULL, display = NULL;
volatile int rc;
png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, control,
rc = setjmp(control->file.jmpbuf);
if (rc == 0)
{
+# ifdef PNG_SET_USER_LIMITS_SUPPORTED
+ /* Remove any limits on the size of PNG files that can be read,
+ * without this we may reject files based on built-in safety
+ * limits.
+ */
+ png_set_user_limits(png_ptr, 0x7fffffff, 0x7fffffff);
+ png_set_chunk_cache_max(png_ptr, 0);
+ png_set_chunk_malloc_max(png_ptr, 0);
+# endif
+
png_set_read_fn(png_ptr, control, read_callback);
info_ptr = png_create_info_struct(png_ptr);
png_read_info(png_ptr, info_ptr);
{
- png_size_t rowbytes = png_get_rowbytes(png_ptr, info_ptr);
-
- row = png_voidcast(png_byte*, malloc(rowbytes));
- display = png_voidcast(png_byte*, malloc(rowbytes));
-
- if (row == NULL || display == NULL)
- png_error(png_ptr, "OOM allocating row buffers");
-
- {
- png_uint_32 height = png_get_image_height(png_ptr, info_ptr);
- int passes = png_set_interlace_handling(png_ptr);
- int pass;
-
- png_start_read_image(png_ptr);
-
- for (pass = 0; pass < passes; ++pass)
- {
- png_uint_32 y = height;
-
- /* NOTE: this trashes the row each time; interlace handling won't
- * work, but this avoids memory thrashing for speed testing.
- */
- while (y-- > 0)
- png_read_row(png_ptr, row, display);
- }
- }
+ png_uint_32 height = png_get_image_height(png_ptr, info_ptr);
+ int passes = png_set_interlace_handling(png_ptr);
+ int pass;
+
+ png_start_read_image(png_ptr);
+
+ for (pass = 0; pass < passes; ++pass)
+ {
+ png_uint_32 y = height;
+
+ /* NOTE: this skips asking libpng to return either version of
+ * the image row, but libpng still reads the rows.
+ */
+ while (y-- > 0)
+ png_read_row(png_ptr, NULL, NULL);
+ }
}
if (control->file.global->verbose)
}
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
- if (row != NULL) free(row);
- if (display != NULL) free(display);
return rc;
}
" gAMA, sRGB [all]: These specify the gamma encoding used for the pixel",
" values.",
" cHRM, iCCP [color]: These specify how colors are encoded. iCCP also",
-" specifies the exact encoding of a pixel value however in practice",
-" most programs will ignore it.",
+" specifies the exact encoding of a pixel value; however, in",
+" practice most programs will ignore it.",
" bKGD [transform]: This is used by libpng transforms."
" --max=<number>:",
" Use IDAT chunks sized <number>. If no number is given the the IDAT",
" chunks will be the maximum size permitted; 2^31-1 bytes. If the option",
" is omitted the original chunk sizes will not be changed. When the",
-" option is given --strip=unsafe is set automatically, this may be",
+" option is given --strip=unsafe is set automatically. This may be",
" cancelled if you know that all unknown unsafe-to-copy chunks really are",
" safe to copy across an IDAT size change. This is true of all chunks",
" that have ever been formally proposed as PNG extensions.",
" MESSAGES",
" By default the program only outputs summaries for each file.",
" --quiet (-q):",
-" Do not output the summaries except for files which cannot be read. With",
+" Do not output the summaries except for files that cannot be read. With",
" two --quiets these are not output either.",
" --errors (-e):",
" Output errors from libpng and the program (except too-far-back).",
" the following codes. Notice that the results for each file are combined",
" together - check one file at a time to get a meaningful error code!",
" 0x01: The zlib too-far-back error existed in at least one chunk.",
-" 0x02: At least once chunk had a CRC error.",
+" 0x02: At least one chunk had a CRC error.",
" 0x04: A chunk length was incorrect.",
" 0x08: The file was truncated.",
" Errors less than 16 are potentially recoverable, for a single file if the",
" non-zero code is returned).",
" 0x10: The file could not be read, even with corrections.",
" 0x20: The output file could not be written.",
-" 0x40: An unexpected, potentially internal, error occured.",
+" 0x40: An unexpected, potentially internal, error occurred.",
" If the command line arguments are incorrect the program exits with exit",
" 255. Some older operating systems only support 7-bit exit codes, on those",
" systems it is suggested that this program is first tested by supplying",
" SKP: The chunk was skipped because of a zlib issue (zlib-rc) with",
" explanation 'message'",
" ERR: The read of the file was aborted. The parameters explain why.",
-"$3 status: For 'ERR' the accumulate status code from 'EXIT CODES' above.",
+"$3 status: For 'ERR' the accumulated status code from 'EXIT CODES' above.",
" This is printed as a 2 digit hexadecimal value",
" comp-level: The recorded compression level (FLEVEL) of a zlib stream",
" expressed as a string {supfast,stdfast,default,maximum}",
int
main(int argc, const char **argv)
{
+ char temp_name[FILENAME_MAX+1];
const char * prog = *argv;
const char * outfile = NULL;
const char * suffix = NULL;
else
{
size_t outlen = strlen(*argv);
- char temp_name[FILENAME_MAX+1];
if (outfile == NULL) /* else this takes precedence */
{
int
main(void)
{
- fprintf(stderr, "pngfix does not work without read support\n");
+ fprintf(stderr, "pngfix does not work without read deinterlace support\n");
return 77;
}
#endif /* PNG_READ_SUPPORTED && PNG_EASY_ACCESS_SUPPORTED */
+#else /* No setjmp support */
+int
+main(void)
+{
+ fprintf(stderr, "pngfix does not work without setjmp support\n");
+ return 77;
+}
+#endif /* PNG_SETJMP_SUPPORTED */
+
scriptversion=2013-05-30.07; # UTC
-# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+# Copyright (C) 1999-2014 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
#if 0 /* in case someone actually tries to compile this */
/* example.c - an example of using libpng
- * Last changed in libpng 1.6.11 [June 5, 2014]
+ * Last changed in libpng 1.6.15 [November 20, 2014]
* Maintained 1998-2014 Glenn Randers-Pehrson
* Maintained 1996, 1997 Andreas Dilger)
* Written 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
image.version = PNG_IMAGE_VERSION;
/* The first argument is the file to read: */
- if (png_image_begin_read_from_file(&image, argv[1]))
+ if (png_image_begin_read_from_file(&image, argv[1]) != 0)
{
png_bytep buffer;
*/
if (buffer != NULL &&
png_image_finish_read(&image, NULL/*background*/, buffer,
- 0/*row_stride*/, NULL/*colormap*/))
+ 0/*row_stride*/, NULL/*colormap*/) != 0)
{
/* Now write the image out to the second argument. In the write
* call 'convert_to_8bit' allows 16-bit data to be squashed down to
* to the 8-bit format.
*/
if (png_image_write_to_file(&image, argv[2], 0/*convert_to_8bit*/,
- buffer, 0/*row_stride*/, NULL/*colormap*/))
+ buffer, 0/*row_stride*/, NULL/*colormap*/) != 0)
{
/* The image has been written successfully. */
exit(0);
*
* Don't repeatedly convert between the 8-bit and 16-bit forms. There is
* significant data loss when 16-bit data is converted to the 8-bit encoding and
- * the current libpng implementation of convertion to 16-bit is also
+ * the current libpng implementation of conversion to 16-bit is also
* significantly lossy. The latter will be fixed in the future, but the former
* is unavoidable - the 8-bit format just doesn't have enough resolution.
*/
/* If your program needs more information from the PNG data it reads, or if you
- * need to do more complex transformations, or minimise transformations, on the
+ * need to do more complex transformations, or minimize transformations, on the
* data you read, then you must use one of the several lower level libpng
* interfaces.
*
{
png_structp png_ptr;
png_infop info_ptr;
- unsigned int sig_read = 0;
+ int sig_read = 0;
png_uint_32 width, height;
int bit_depth, color_type, interlace_type;
FILE *fp;
return (ERROR);
#else no_open_file /* prototype 2 */
-void read_png(FILE *fp, unsigned int sig_read) /* File is already open */
+void read_png(FILE *fp, int sig_read) /* File is already open */
{
png_structp png_ptr;
png_infop info_ptr;
* are mutually exclusive.
*/
- /* Tell libpng to strip 16 bit/color files down to 8 bits/color.
+ /* Tell libpng to strip 16 bits/color files down to 8 bits/color.
* Use accurate scaling if it's available, otherwise just chop off the
* low byte.
*/
/* Expand paletted or RGB images with transparency to full alpha channels
* so the data will be available as RGBA quartets.
*/
- if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS))
+ if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS) != 0)
png_set_tRNS_to_alpha(png_ptr);
/* Set the background color to draw transparent and alpha images over.
png_color_16 my_background, *image_background;
- if (png_get_bKGD(png_ptr, info_ptr, &image_background))
+ if (png_get_bKGD(png_ptr, info_ptr, &image_background) != 0)
png_set_background(png_ptr, image_background,
PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
else
int intent;
- if (png_get_sRGB(png_ptr, info_ptr, &intent))
+ if (png_get_sRGB(png_ptr, info_ptr, &intent) != 0)
png_set_gamma(png_ptr, screen_gamma, PNG_DEFAULT_sRGB);
else
{
double image_gamma;
- if (png_get_gAMA(png_ptr, info_ptr, &image_gamma))
+ if (png_get_gAMA(png_ptr, info_ptr, &image_gamma) != 0)
png_set_gamma(png_ptr, screen_gamma, image_gamma);
else
png_set_gamma(png_ptr, screen_gamma, 0.45455);
}
#ifdef PNG_READ_QUANTIZE_SUPPORTED
- /* Quantize RGB files down to 8 bit palette or reduce palettes
+ /* Quantize RGB files down to 8-bit palette or reduce palettes
* to the number of colors available on your screen.
*/
- if (color_type & PNG_COLOR_MASK_COLOR)
+ if ((color_type & PNG_COLOR_MASK_COLOR) != 0)
{
int num_palette;
png_colorp palette;
MAX_SCREEN_COLORS, NULL, 0);
}
/* This reduces the image to the palette supplied in the file */
- else if (png_get_PLTE(png_ptr, info_ptr, &palette, &num_palette))
+ else if (png_get_PLTE(png_ptr, info_ptr, &palette, &num_palette) != 0)
{
png_uint_16p histogram = NULL;
max_screen_colors, histogram, 0);
}
}
-#endif /* PNG_READ_QUANTIZE_SUPPORTED */
+#endif /* READ_QUANTIZE */
/* Invert monochrome files to have 0 as white and 1 as black */
png_set_invert_mono(png_ptr);
* [0,65535] to the original [0,7] or [0,31], or whatever range the
* colors were originally in:
*/
- if (png_get_valid(png_ptr, info_ptr, PNG_INFO_sBIT))
+ if (png_get_valid(png_ptr, info_ptr, PNG_INFO_sBIT) != 0)
{
png_color_8p sig_bit_p;
}
/* Flip the RGB pixels to BGR (or RGBA to BGRA) */
- if (color_type & PNG_COLOR_MASK_COLOR)
+ if ((color_type & PNG_COLOR_MASK_COLOR) != 0)
png_set_bgr(png_ptr);
/* Swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR) */
png_set_swap_alpha(png_ptr);
- /* Swap bytes of 16 bit files to least significant byte first */
+ /* Swap bytes of 16-bit files to least significant byte first */
png_set_swap(png_ptr);
/* Add filler (or alpha) byte (before/after each RGB triplet) */
- png_set_filler(png_ptr, 0xff, PNG_FILLER_AFTER);
+ png_set_filler(png_ptr, 0xffff, PNG_FILLER_AFTER);
#ifdef PNG_READ_INTERLACING_SUPPORTED
/* Turn on interlace handling. REQUIRED if you are not using
number_passes = png_set_interlace_handling(png_ptr);
#else
number_passes = 1;
-#endif /* PNG_READ_INTERLACING_SUPPORTED */
+#endif /* READ_INTERLACING */
/* Optional call to gamma correct and add the background to the palette
* to pass the current row as new_row, and the function will combine
* the old row and the new row.
*/
-#endif /* PNG_READ_INTERLACING_SUPPORTED */
+#endif /* READ_INTERLACING */
}
end_callback(png_structp png_ptr, png_infop info)
*/
/* Once we write out the header, the compression type on the text
- * chunks gets changed to PNG_TEXT_COMPRESSION_NONE_WR or
+ * chunk gets changed to PNG_TEXT_COMPRESSION_NONE_WR or
* PNG_TEXT_COMPRESSION_zTXt_WR, so it doesn't get written out again
* at the end.
*/
/* Swap bytes of 16-bit files to most significant byte first */
png_set_swap(png_ptr);
- /* Swap bits of 1, 2, 4 bit packed pixel formats */
+ /* Swap bits of 1-bit, 2-bit, 4-bit packed pixel formats */
png_set_packswap(png_ptr);
/* Turn on interlace handling if you are not using png_write_image() */
#!/bin/sh
# install - install a program, script, or datafile
-scriptversion=2011-11-20.07; # UTC
+scriptversion=2013-12-25.23; # UTC
# This originates from X11R5 (mit/util/scripts/install.sh), which was
# later released in X11R6 (xc/config/util/install.sh) with the
# This script is compatible with the BSD install script, but was written
# from scratch.
+tab=' '
nl='
'
-IFS=" "" $nl"
+IFS=" $tab$nl"
-# set DOITPROG to echo to test this script
+# Set DOITPROG to "echo" to test this script.
-# Don't use :- since 4.3BSD and earlier shells don't like it.
doit=${DOITPROG-}
-if test -z "$doit"; then
- doit_exec=exec
-else
- doit_exec=$doit
-fi
+doit_exec=${doit:-exec}
# Put in absolute file names if you don't have them in your path;
# or use environment vars.
rmprog=${RMPROG-rm}
stripprog=${STRIPPROG-strip}
-posix_glob='?'
-initialize_posix_glob='
- test "$posix_glob" != "?" || {
- if (set -f) 2>/dev/null; then
- posix_glob=
- else
- posix_glob=:
- fi
- }
-'
-
posix_mkdir=
# Desired mode of installed file.
dst_arg=
copy_on_change=false
-no_target_directory=
+is_target_a_directory=possibly
usage="\
Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
-d) dir_arg=true;;
-g) chgrpcmd="$chgrpprog $2"
- shift;;
+ shift;;
--help) echo "$usage"; exit $?;;
-m) mode=$2
- case $mode in
- *' '* | *' '* | *'
-'* | *'*'* | *'?'* | *'['*)
- echo "$0: invalid mode: $mode" >&2
- exit 1;;
- esac
- shift;;
+ case $mode in
+ *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
+ echo "$0: invalid mode: $mode" >&2
+ exit 1;;
+ esac
+ shift;;
-o) chowncmd="$chownprog $2"
- shift;;
+ shift;;
-s) stripcmd=$stripprog;;
- -t) dst_arg=$2
- # Protect names problematic for 'test' and other utilities.
- case $dst_arg in
- -* | [=\(\)!]) dst_arg=./$dst_arg;;
- esac
- shift;;
+ -t)
+ is_target_a_directory=always
+ dst_arg=$2
+ # Protect names problematic for 'test' and other utilities.
+ case $dst_arg in
+ -* | [=\(\)!]) dst_arg=./$dst_arg;;
+ esac
+ shift;;
- -T) no_target_directory=true;;
+ -T) is_target_a_directory=never;;
--version) echo "$0 $scriptversion"; exit $?;;
- --) shift
- break;;
+ --) shift
+ break;;
- -*) echo "$0: invalid option: $1" >&2
- exit 1;;
+ -*) echo "$0: invalid option: $1" >&2
+ exit 1;;
*) break;;
esac
shift
done
+# We allow the use of options -d and -T together, by making -d
+# take the precedence; this is for compatibility with GNU install.
+
+if test -n "$dir_arg"; then
+ if test -n "$dst_arg"; then
+ echo "$0: target directory not allowed when installing a directory." >&2
+ exit 1
+ fi
+fi
+
if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
# When -d is used, all remaining arguments are directories to create.
# When -t is used, the destination is already specified.
fi
if test -z "$dir_arg"; then
+ if test $# -gt 1 || test "$is_target_a_directory" = always; then
+ if test ! -d "$dst_arg"; then
+ echo "$0: $dst_arg: Is not a directory." >&2
+ exit 1
+ fi
+ fi
+fi
+
+if test -z "$dir_arg"; then
do_exit='(exit $ret); exit $ret'
trap "ret=129; $do_exit" 1
trap "ret=130; $do_exit" 2
*[0-7])
if test -z "$stripcmd"; then
- u_plus_rw=
+ u_plus_rw=
else
- u_plus_rw='% 200'
+ u_plus_rw='% 200'
fi
cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
*)
if test -z "$stripcmd"; then
- u_plus_rw=
+ u_plus_rw=
else
- u_plus_rw=,u+rw
+ u_plus_rw=,u+rw
fi
cp_umask=$mode$u_plus_rw;;
esac
# If destination is a directory, append the input filename; won't work
# if double slashes aren't ignored.
if test -d "$dst"; then
- if test -n "$no_target_directory"; then
- echo "$0: $dst_arg: Is a directory" >&2
- exit 1
+ if test "$is_target_a_directory" = never; then
+ echo "$0: $dst_arg: Is a directory" >&2
+ exit 1
fi
dstdir=$dst
dst=$dstdir/`basename "$src"`
dstdir_status=0
else
- # Prefer dirname, but fall back on a substitute if dirname fails.
- dstdir=`
- (dirname "$dst") 2>/dev/null ||
- expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
- X"$dst" : 'X\(//\)[^/]' \| \
- X"$dst" : 'X\(//\)$' \| \
- X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
- echo X"$dst" |
- sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
- s//\1/
- q
- }
- /^X\(\/\/\)[^/].*/{
- s//\1/
- q
- }
- /^X\(\/\/\)$/{
- s//\1/
- q
- }
- /^X\(\/\).*/{
- s//\1/
- q
- }
- s/.*/./; q'
- `
-
+ dstdir=`dirname "$dst"`
test -d "$dstdir"
dstdir_status=$?
fi
if test $dstdir_status != 0; then
case $posix_mkdir in
'')
- # Create intermediate dirs using mode 755 as modified by the umask.
- # This is like FreeBSD 'install' as of 1997-10-28.
- umask=`umask`
- case $stripcmd.$umask in
- # Optimize common cases.
- *[2367][2367]) mkdir_umask=$umask;;
- .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
-
- *[0-7])
- mkdir_umask=`expr $umask + 22 \
- - $umask % 100 % 40 + $umask % 20 \
- - $umask % 10 % 4 + $umask % 2
- `;;
- *) mkdir_umask=$umask,go-w;;
- esac
-
- # With -d, create the new directory with the user-specified mode.
- # Otherwise, rely on $mkdir_umask.
- if test -n "$dir_arg"; then
- mkdir_mode=-m$mode
- else
- mkdir_mode=
- fi
-
- posix_mkdir=false
- case $umask in
- *[123567][0-7][0-7])
- # POSIX mkdir -p sets u+wx bits regardless of umask, which
- # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
- ;;
- *)
- tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
- trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
-
- if (umask $mkdir_umask &&
- exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
- then
- if test -z "$dir_arg" || {
- # Check for POSIX incompatibilities with -m.
- # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
- # other-writable bit of parent directory when it shouldn't.
- # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
- ls_ld_tmpdir=`ls -ld "$tmpdir"`
- case $ls_ld_tmpdir in
- d????-?r-*) different_mode=700;;
- d????-?--*) different_mode=755;;
- *) false;;
- esac &&
- $mkdirprog -m$different_mode -p -- "$tmpdir" && {
- ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
- test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
- }
- }
- then posix_mkdir=:
- fi
- rmdir "$tmpdir/d" "$tmpdir"
- else
- # Remove any dirs left behind by ancient mkdir implementations.
- rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
- fi
- trap '' 0;;
- esac;;
+ # Create intermediate dirs using mode 755 as modified by the umask.
+ # This is like FreeBSD 'install' as of 1997-10-28.
+ umask=`umask`
+ case $stripcmd.$umask in
+ # Optimize common cases.
+ *[2367][2367]) mkdir_umask=$umask;;
+ .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
+
+ *[0-7])
+ mkdir_umask=`expr $umask + 22 \
+ - $umask % 100 % 40 + $umask % 20 \
+ - $umask % 10 % 4 + $umask % 2
+ `;;
+ *) mkdir_umask=$umask,go-w;;
+ esac
+
+ # With -d, create the new directory with the user-specified mode.
+ # Otherwise, rely on $mkdir_umask.
+ if test -n "$dir_arg"; then
+ mkdir_mode=-m$mode
+ else
+ mkdir_mode=
+ fi
+
+ posix_mkdir=false
+ case $umask in
+ *[123567][0-7][0-7])
+ # POSIX mkdir -p sets u+wx bits regardless of umask, which
+ # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
+ ;;
+ *)
+ tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+ trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
+
+ if (umask $mkdir_umask &&
+ exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
+ then
+ if test -z "$dir_arg" || {
+ # Check for POSIX incompatibilities with -m.
+ # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
+ # other-writable bit of parent directory when it shouldn't.
+ # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
+ ls_ld_tmpdir=`ls -ld "$tmpdir"`
+ case $ls_ld_tmpdir in
+ d????-?r-*) different_mode=700;;
+ d????-?--*) different_mode=755;;
+ *) false;;
+ esac &&
+ $mkdirprog -m$different_mode -p -- "$tmpdir" && {
+ ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
+ test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
+ }
+ }
+ then posix_mkdir=:
+ fi
+ rmdir "$tmpdir/d" "$tmpdir"
+ else
+ # Remove any dirs left behind by ancient mkdir implementations.
+ rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
+ fi
+ trap '' 0;;
+ esac;;
esac
if
$posix_mkdir && (
- umask $mkdir_umask &&
- $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
+ umask $mkdir_umask &&
+ $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
)
then :
else
# directory the slow way, step by step, checking for races as we go.
case $dstdir in
- /*) prefix='/';;
- [-=\(\)!]*) prefix='./';;
- *) prefix='';;
+ /*) prefix='/';;
+ [-=\(\)!]*) prefix='./';;
+ *) prefix='';;
esac
- eval "$initialize_posix_glob"
-
oIFS=$IFS
IFS=/
- $posix_glob set -f
+ set -f
set fnord $dstdir
shift
- $posix_glob set +f
+ set +f
IFS=$oIFS
prefixes=
for d
do
- test X"$d" = X && continue
-
- prefix=$prefix$d
- if test -d "$prefix"; then
- prefixes=
- else
- if $posix_mkdir; then
- (umask=$mkdir_umask &&
- $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
- # Don't fail if two instances are running concurrently.
- test -d "$prefix" || exit 1
- else
- case $prefix in
- *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
- *) qprefix=$prefix;;
- esac
- prefixes="$prefixes '$qprefix'"
- fi
- fi
- prefix=$prefix/
+ test X"$d" = X && continue
+
+ prefix=$prefix$d
+ if test -d "$prefix"; then
+ prefixes=
+ else
+ if $posix_mkdir; then
+ (umask=$mkdir_umask &&
+ $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
+ # Don't fail if two instances are running concurrently.
+ test -d "$prefix" || exit 1
+ else
+ case $prefix in
+ *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
+ *) qprefix=$prefix;;
+ esac
+ prefixes="$prefixes '$qprefix'"
+ fi
+ fi
+ prefix=$prefix/
done
if test -n "$prefixes"; then
- # Don't fail if two instances are running concurrently.
- (umask $mkdir_umask &&
- eval "\$doit_exec \$mkdirprog $prefixes") ||
- test -d "$dstdir" || exit 1
- obsolete_mkdir_used=true
+ # Don't fail if two instances are running concurrently.
+ (umask $mkdir_umask &&
+ eval "\$doit_exec \$mkdirprog $prefixes") ||
+ test -d "$dstdir" || exit 1
+ obsolete_mkdir_used=true
fi
fi
fi
# If -C, don't bother to copy if it wouldn't change the file.
if $copy_on_change &&
- old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` &&
- new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
-
- eval "$initialize_posix_glob" &&
- $posix_glob set -f &&
+ old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` &&
+ new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
+ set -f &&
set X $old && old=:$2:$4:$5:$6 &&
set X $new && new=:$2:$4:$5:$6 &&
- $posix_glob set +f &&
-
+ set +f &&
test "$old" = "$new" &&
$cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
then
# to itself, or perhaps because mv is so ancient that it does not
# support -f.
{
- # Now remove or move aside any old file at destination location.
- # We try this two ways since rm can't unlink itself on some
- # systems and the destination file might be busy for other
- # reasons. In this case, the final cleanup might fail but the new
- # file should still install successfully.
- {
- test ! -f "$dst" ||
- $doit $rmcmd -f "$dst" 2>/dev/null ||
- { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
- { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
- } ||
- { echo "$0: cannot unlink or rename $dst" >&2
- (exit 1); exit 1
- }
- } &&
-
- # Now rename the file to the real destination.
- $doit $mvcmd "$dsttmp" "$dst"
+ # Now remove or move aside any old file at destination location.
+ # We try this two ways since rm can't unlink itself on some
+ # systems and the destination file might be busy for other
+ # reasons. In this case, the final cleanup might fail but the new
+ # file should still install successfully.
+ {
+ test ! -f "$dst" ||
+ $doit $rmcmd -f "$dst" 2>/dev/null ||
+ { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
+ { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
+ } ||
+ { echo "$0: cannot unlink or rename $dst" >&2
+ (exit 1); exit 1
+ }
+ } &&
+
+ # Now rename the file to the real destination.
+ $doit $mvcmd "$dsttmp" "$dst"
}
fi || exit 1
libpng-manual.txt - A description on how to use and modify libpng
- libpng version 1.6.13 - August 21, 2014
+ libpng version 1.6.21 - January 15, 2016
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
- Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ Copyright (c) 1998-2016 Glenn Randers-Pehrson
This document is released under the libpng license.
For conditions of distribution and use, see the disclaimer
Based on:
- libpng versions 0.97, January 1998, through 1.6.13 - August 21, 2014
+ libpng versions 0.97, January 1998, through 1.6.21 - January 15, 2016
Updated and distributed by Glenn Randers-Pehrson
- Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ Copyright (c) 1998-2016 Glenn Randers-Pehrson
libpng 1.0 beta 6 - version 0.96 - May 28, 1997
Updated and distributed by Andreas Dilger
The W3C and ISO documents have identical technical content.
The PNG-1.2 specification is available at
-<http://www.libpng.org/pub/png/documents/>. It is technically equivalent
+<http://png-mng.sourceforge.net/pub/png/spec/1.2/>.
+It is technically equivalent
to the PNG specification (second edition) but has some additional material.
-The PNG-1.0 specification is available
-as RFC 2083 <http://www.libpng.org/pub/png/documents/> and as a
-W3C Recommendation <http://www.w3.org/TR/REC.png.html>.
+The PNG-1.0 specification is available as RFC 2083
+<http://png-mng.sourceforge.net/pub/png/spec/1.0/> and as a
+W3C Recommendation <http://www.w3.org/TR/REC-png-961001>.
Some additional chunks are described in the special-purpose public chunks
-documents at <http://www.libpng.org/pub/png/documents/>.
+documents at <http://www.libpng.org/pub/png/spec/register/>
Other information
about PNG, and the latest version of libpng, can be found at the PNG home
Libpng uses zlib for its compression and decompression of PNG files.
Further information about zlib, and the latest version of zlib, can
-be found at the zlib home page, <http://www.info-zip.org/pub/infozip/zlib/>.
+be found at the zlib home page, <http://zlib.net/>.
The zlib compression utility is a general purpose utility that is
useful for more than PNG files, and can be used without libpng.
See the documentation delivered with zlib for more details.
If you are intending to keep the file pointer open for use in libpng,
you must ensure you don't read more than 8 bytes from the beginning
-of the file, and you also have to make a call to png_set_sig_bytes_read()
+of the file, and you also have to make a call to png_set_sig_bytes()
with the number of bytes you read from the beginning. Libpng will
then only check the bytes (if any) that your program didn't read.
to replace them with custom functions. See the discussion under
Customizing libpng.
-
FILE *fp = fopen(file_name, "rb");
if (!fp)
{
return (ERROR);
}
- fread(header, 1, number, fp);
- is_png = !png_sig_cmp(header, 0, number);
+ if (fread(header, 1, number, fp) != number)
+ {
+ return (ERROR);
+ }
+ is_png = !png_sig_cmp(header, 0, number);
if (!is_png)
{
return (NOT_PNG);
}
-
Next, png_struct and png_info need to be allocated and initialized. In
order to ensure that the size of these structures is correct even with a
dynamically linked libpng, there are functions to initialize and
The PNG specification allows the width and height of an image to be as
large as 2^31-1 (0x7fffffff), or about 2.147 billion rows and columns.
-Since very few applications really need to process such large images,
-we have imposed an arbitrary 1-million limit on rows and columns.
+For safety, libpng imposes a default limit of 1 million rows and columns.
Larger images will be rejected immediately with a png_error() call. If
-you wish to change this limit, you can use
+you wish to change these limits, you can use
png_set_user_limits(png_ptr, width_max, height_max);
-to set your own limits, or use width_max = height_max = 0x7fffffffL
-to allow all valid dimensions (libpng may reject some very large images
+to set your own limits (libpng may reject some very wide images
anyway because of potential buffer overflow conditions).
You should put this statement after you create the PNG structure and
height_max = png_get_user_height_max(png_ptr);
The PNG specification sets no limit on the number of ancillary chunks
-allowed in a PNG datastream. You can impose a limit on the total number
-of sPLT, tEXt, iTXt, zTXt, and unknown chunks that will be stored, with
+allowed in a PNG datastream. By default, libpng imposes a limit of
+a total of 1000 sPLT, tEXt, iTXt, zTXt, and unknown chunks to be stored.
+If you have set up both info_ptr and end_info_ptr, the limit applies
+separately to each. You can change the limit on the total number of such
+chunks that will be stored, with
png_set_chunk_cache_max(png_ptr, user_chunk_cache_max);
chunk_cache_max = png_get_chunk_cache_max(png_ptr);
-You can also set a limit on the amount of memory that a compressed chunk
-other than IDAT can occupy, with
+Libpng imposes a limit of 8 Megabytes (8,000,000 bytes) on the amount of
+memory that a compressed chunk other than IDAT can occupy, when decompressed.
+You can change this limit with
png_set_chunk_malloc_max(png_ptr, user_chunk_malloc_max);
the PNG datastream is embedded in
a MNG-1.0 datastream)
- Any or all of interlace_type, compression_type, or
- filter_method can be NULL if you are
- not interested in their values.
+ Any of width, height, color_type, bit_depth,
+ interlace_type, compression_type, or filter_method can
+ be NULL if you are not interested in their values.
Note that png_get_IHDR() returns 32-bit data into
the application's width and height variables.
- This is an unsafe situation if these are 16-bit
+ This is an unsafe situation if these are not png_uint_32
variables. In such situations, the
png_get_image_width() and png_get_image_height()
functions described below are safer.
Data will be decoded into the supplied row buffers packed into bytes
unless the library has been told to transform it into another format.
For example, 4 bit/pixel paletted or grayscale data will be returned
-2 pixels/byte with the leftmost pixel in the high-order bits of the
-byte, unless png_set_packing() is called. 8-bit RGB data will be stored
+2 pixels/byte with the leftmost pixel in the high-order bits of the byte,
+unless png_set_packing() is called. 8-bit RGB data will be stored
in RGB RGB RGB format unless png_set_filler() or png_set_add_alpha()
is called to insert filler bytes, either before or after each RGB triplet.
+
16-bit RGB data will be returned RRGGBB RRGGBB, with the most significant
byte of the color value first, unless png_set_scale_16() is called to
transform it to regular RGB RGB triplets, or png_set_filler() or
-png_set_add alpha() is called to insert filler bytes, either before or
-after each RRGGBB triplet. Similarly, 8-bit or 16-bit grayscale data can
+png_set_add alpha() is called to insert two filler bytes, either before
+or after each RRGGBB triplet. Similarly, 8-bit or 16-bit grayscale data can
be modified with png_set_filler(), png_set_add_alpha(), png_set_strip_16(),
or png_set_scale_16().
if (color_type == PNG_COLOR_TYPE_RGB)
png_set_filler(png_ptr, filler, PNG_FILLER_BEFORE);
-where "filler" is the 8 or 16-bit number to fill with, and the location is
-either PNG_FILLER_BEFORE or PNG_FILLER_AFTER, depending upon whether
-you want the filler before the RGB or after. This transformation
-does not affect images that already have full alpha channels. To add an
-opaque alpha channel, use filler=0xff or 0xffff and PNG_FILLER_AFTER which
-will generate RGBA pixels.
+where "filler" is the 8-bit or 16-bit number to fill with, and the location
+is either PNG_FILLER_BEFORE or PNG_FILLER_AFTER, depending upon whether
+you want the filler before the RGB or after. When filling an 8-bit pixel,
+the least significant 8 bits of the number are used, if a 16-bit number is
+supplied. This transformation does not affect images that already have full
+alpha channels. To add an opaque alpha channel, use filler=0xffff and
+PNG_FILLER_AFTER which will generate RGBA pixels.
Note that png_set_filler() does not change the color type. If you want
to do that, you can add a true alpha channel with
png_set_add_alpha(png_ptr, filler, PNG_FILLER_AFTER);
where "filler" contains the alpha value to assign to each pixel.
-This function was added in libpng-1.2.7.
+The png_set_add_alpha() function was added in libpng-1.2.7.
If you are reading an image with an alpha channel, and you need the
data as ARGB instead of the normal PNG format RGBA:
The default values come from the PNG file cHRM chunk if present; otherwise, the
defaults correspond to the ITU-R recommendation 709, and also the sRGB color
space, as recommended in the Charles Poynton's Colour FAQ,
-<http://www.poynton.com/>, in section 9:
+Copyright (c) 2006-11-28 Charles Poynton, in section 9:
- <http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html#RTFToC9>
+<http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html#RTFToC9>
Y = 0.2126 * R + 0.7152 * G + 0.0722 * B
png_set_gamma(png_ptr, screen_gamma, 0.45455);
If you need to reduce an RGB file to a paletted file, or if a paletted
-file has more entries then will fit on your screen, png_set_quantize()
+file has more entries than will fit on your screen, png_set_quantize()
will do that. Note that this is a simple match quantization that merely
finds the closest color available. This should work fairly well with
optimized palettes, but fairly badly with linear color cubes. If you
64K. The library seems to run fine with sizes
of 4K. Although you can give it much less if
necessary (I assume you can give it chunks of
- 1 byte, I haven't tried less then 256 bytes
+ 1 byte, I haven't tried less than 256 bytes
yet). When this function returns, you may
want to display any rows that were generated
in the row callback if you don't already do
(array of png_color)
num_palette - number of entries in the palette
+
png_set_gAMA(png_ptr, info_ptr, file_gamma);
png_set_gAMA_fixed(png_ptr, info_ptr, int_file_gamma);
although this isn't a requirement. Unlike the tIME chunk, the
"Creation Time" tEXt chunk is not expected to be automatically changed
by the software. To facilitate the use of RFC 1123 dates, a function
-png_convert_to_rfc1123_buffer(png_ptr, buffer, png_timep) is provided to
+png_convert_to_rfc1123_buffer(buffer, png_timep) is provided to
convert from PNG time to an RFC 1123 format string. The caller must provide
a writeable buffer of at least 29 bytes.
To read a PNG file using the simplified API:
- 1) Declare a 'png_image' structure (see below) on the
- stack and memset() it to all zero.
+ 1) Declare a 'png_image' structure (see below) on the stack, set the
+ version field to PNG_IMAGE_VERSION and the 'opaque' pointer to NULL
+ (this is REQUIRED, your program may crash if you don't do it.)
2) Call the appropriate png_image_begin_read... function.
- 3) Set the png_image 'format' member to the required
- format and allocate a buffer for the image.
+ 3) Set the png_image 'format' member to the required sample format.
- 4) Call png_image_finish_read to read the image into
- your buffer.
+ 4) Allocate a buffer for the image and, if required, the color-map.
+
+ 5) Call png_image_finish_read to read the image and, if required, the
+ color-map into your buffers.
There are no restrictions on the format of the PNG input itself; all valid
color types, bit depths, and interlace methods are acceptable, and the
input image is transformed as necessary to the requested in-memory format
-during the png_image_finish_read() step.
+during the png_image_finish_read() step. The only caveat is that if you
+request a color-mapped image from a PNG that is full-color or makes
+complex use of an alpha channel the transformation is extremely lossy and the
+result may look terrible.
To write a PNG file using the simplified API:
2) Initialize the members of the structure that describe the
image, setting the 'format' member to the format of the
- image in memory.
+ image samples.
3) Call the appropriate png_image_write... function with a
- pointer to the image to write the PNG data.
+ pointer to the image and, if necessary, the color-map to write
+ the PNG data.
png_image is a structure that describes the in-memory format of an image
-when it is being read or define the in-memory format of an image that you
+when it is being read or defines the in-memory format of an image that you
need to write. The "png_image" structure contains the following members:
+ png_controlp opaque Initialize to NULL, free with png_image_free
png_uint_32 version Set to PNG_IMAGE_VERSION
png_uint_32 width Image width in pixels (columns)
png_uint_32 height Image height in pixels (rows)
png_uint_32 format Image format as defined below
png_uint_32 flags A bit mask containing informational flags
- png_controlp opaque Initialize to NULL, free with png_image_free
png_uint_32 colormap_entries; Number of entries in the color-map
png_uint_32 warning_or_error;
char message[64];
-In the event of an error or warning the following field warning_or_error
+In the event of an error or warning the "warning_or_error"
field will be set to a non-zero value and the 'message' field will contain
a '\0' terminated string with the libpng error or warning message. If both
warnings and an error were encountered, only the error is recorded. If there
are multiple warnings, only the first one is recorded.
-The upper 30 bits of this value are reserved; the low two bits contain
-a two bit code such that a value more than 1 indicates a failure in the API
-just called:
+The upper 30 bits of the "warning_or_error" value are reserved; the low two
+bits contain a two bit code such that a value more than 1 indicates a failure
+in the API just called:
0 - no warning or error
1 - warning
the sRGB specification. This encoding is identified by the
PNG_FORMAT_FLAG_LINEAR flag below.
+When the simplified API needs to convert between sRGB and linear colorspaces,
+the actual sRGB transfer curve defined in the sRGB specification (see the
+article at http://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2
+approximation used elsewhere in libpng.
+
When an alpha channel is present it is expected to denote pixel coverage
of the color or luminance channels and is returned as an associated alpha
channel: the color/gray channels are scaled (pre-multiplied) by the alpha
value.
-When a color-mapped image is used as a result of calling
-png_image_read_colormap or png_image_write_colormap the channels are encoded
-in the color-map and the descriptions above apply to the color-map entries.
-The image data is encoded as small integers, value 0..255, that index the
-entries in the color-map. One integer (one byte) is stored for each pixel.
+The samples are either contained directly in the image data, between 1 and 8
+bytes per pixel according to the encoding, or are held in a color-map indexed
+by bytes in the image data. In the case of a color-map the color-map entries
+are individual samples, encoded as above, and the image data has one byte per
+pixel to select the relevant sample from the color-map.
PNG_FORMAT_*
The #defines to be used in png_image::format. Each #define identifies a
particular layout of channel data and, if present, alpha values. There are
-separate defines for each of the two channel encodings.
+separate defines for each of the two component encodings.
-A format is built up using single bit flag values. Not all combinations are
-valid: use the bit flag values below for testing a format returned by the
-read APIs, but set formats from the derived values.
+A format is built up using single bit flag values. All combinations are
+valid. Formats can be built up from the flag values or you can use one of
+the predefined values below. When testing formats always use the FORMAT_FLAG
+macros to test for individual features - future versions of the library may
+add new flags.
When reading or writing color-mapped images the format should be set to the
format of the entries in the color-map then png_image_{read,write}_colormap
called to read or write the color-map and set the format correctly for the
image data. Do not set the PNG_FORMAT_FLAG_COLORMAP bit directly!
-NOTE: libpng can be built with particular features disabled, if you see
+NOTE: libpng can be built with particular features disabled. If you see
compiler errors because the definition of one of the following flags has been
compiled out it is because libpng does not have the required support. It is
possible, however, for the libpng configuration to enable the format on just
-read or just write; in that case you may see an error at run time. You can
-guard against this by checking for the definition of:
+read or just write; in that case you may see an error at run time.
+You can guard against this by checking for the definition of the
+appropriate "_SUPPORTED" macro, one of:
PNG_SIMPLIFIED_{READ,WRITE}_{BGR,AFIRST}_SUPPORTED
- PNG_FORMAT_FLAG_ALPHA 0x01 format with an alpha channel
- PNG_FORMAT_FLAG_COLOR 0x02 color format: otherwise grayscale
- PNG_FORMAT_FLAG_LINEAR 0x04 png_uint_16 channels else png_byte
- PNG_FORMAT_FLAG_COLORMAP 0x08 libpng use only
- PNG_FORMAT_FLAG_BGR 0x10 BGR colors, else order is RGB
- PNG_FORMAT_FLAG_AFIRST 0x20 alpha channel comes first
+ PNG_FORMAT_FLAG_ALPHA format with an alpha channel
+ PNG_FORMAT_FLAG_COLOR color format: otherwise grayscale
+ PNG_FORMAT_FLAG_LINEAR 2-byte channels else 1-byte
+ PNG_FORMAT_FLAG_COLORMAP image data is color-mapped
+ PNG_FORMAT_FLAG_BGR BGR colors, else order is RGB
+ PNG_FORMAT_FLAG_AFIRST alpha channel comes first
Supported formats are as follows. Future versions of libpng may support more
formats; for compatibility with older versions simply check if the format
macro is defined using #ifdef. These defines describe the in-memory layout
of the components of the pixels of the image.
-First the single byte formats:
+First the single byte (sRGB) formats:
- PNG_FORMAT_GRAY 0
- PNG_FORMAT_GA PNG_FORMAT_FLAG_ALPHA
- PNG_FORMAT_AG (PNG_FORMAT_GA|PNG_FORMAT_FLAG_AFIRST)
- PNG_FORMAT_RGB PNG_FORMAT_FLAG_COLOR
- PNG_FORMAT_BGR (PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_BGR)
- PNG_FORMAT_RGBA (PNG_FORMAT_RGB|PNG_FORMAT_FLAG_ALPHA)
- PNG_FORMAT_ARGB (PNG_FORMAT_RGBA|PNG_FORMAT_FLAG_AFIRST)
- PNG_FORMAT_BGRA (PNG_FORMAT_BGR|PNG_FORMAT_FLAG_ALPHA)
- PNG_FORMAT_ABGR (PNG_FORMAT_BGRA|PNG_FORMAT_FLAG_AFIRST)
+ PNG_FORMAT_GRAY
+ PNG_FORMAT_GA
+ PNG_FORMAT_AG
+ PNG_FORMAT_RGB
+ PNG_FORMAT_BGR
+ PNG_FORMAT_RGBA
+ PNG_FORMAT_ARGB
+ PNG_FORMAT_BGRA
+ PNG_FORMAT_ABGR
Then the linear 2-byte formats. When naming these "Y" is used to
indicate a luminance (gray) channel. The component order within the pixel
the native byte order for your platform, and there is no provision for
swapping the bytes to a different endian condition.
- PNG_FORMAT_LINEAR_Y PNG_FORMAT_FLAG_LINEAR
+ PNG_FORMAT_LINEAR_Y
PNG_FORMAT_LINEAR_Y_ALPHA
- (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_ALPHA)
PNG_FORMAT_LINEAR_RGB
- (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR)
PNG_FORMAT_LINEAR_RGB_ALPHA
- (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR|
- PNG_FORMAT_FLAG_ALPHA)
-Color-mapped formats are obtained by calling png_image_{read,write}_colormap,
-as appropriate after setting png_image::format to the format of the color-map
-to be read or written. Applications may check the value of
-PNG_FORMAT_FLAG_COLORMAP to see if they have called the colormap API. The
-format of the color-map may be extracted using the following macro.
+With color-mapped formats the image data is one byte for each pixel. The byte
+is an index into the color-map which is formatted as above. To obtain a
+color-mapped format it is sufficient just to add the PNG_FOMAT_FLAG_COLORMAP
+to one of the above definitions, or you can use one of the definitions below.
- PNG_FORMAT_OF_COLORMAP(fmt) ((fmt) & ~PNG_FORMAT_FLAG_COLORMAP)
+ PNG_FORMAT_RGB_COLORMAP
+ PNG_FORMAT_BGR_COLORMAP
+ PNG_FORMAT_RGBA_COLORMAP
+ PNG_FORMAT_ARGB_COLORMAP
+ PNG_FORMAT_BGRA_COLORMAP
+ PNG_FORMAT_ABGR_COLORMAP
PNG_IMAGE macros
structure. The PNG_IMAGE_SAMPLE_ macros return values appropriate to the
actual image sample values - either the entries in the color-map or the
pixels in the image. The PNG_IMAGE_PIXEL_ macros return corresponding values
-for the pixels and will always return 1 after a call to
-png_image_{read,write}_colormap. The remaining macros return information
-about the rows in the image and the complete image.
+for the pixels and will always return 1 for color-mapped formats. The
+remaining macros return information about the rows in the image and the
+complete image.
NOTE: All the macros that take a png_image::format parameter are compile time
constants if the format parameter is, itself, a constant. Therefore these
Similarly the macros are also pre-processor constants (sizeof is not used) so
they can be used in #if tests.
-First the information about the samples.
-
PNG_IMAGE_SAMPLE_CHANNELS(fmt)
Returns the total number of channels in a given format: 1..4
PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt)
Returns the size in bytes of a single component of a pixel or color-map
- entry (as appropriate) in the image.
+ entry (as appropriate) in the image: 1 or 2.
PNG_IMAGE_SAMPLE_SIZE(fmt)
This is the size of the sample data for one sample. If the image is
color-mapped it is the size of one color-map entry (and image pixels are
one byte in size), otherwise it is the size of one image pixel.
+ PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(fmt)
+ The maximum size of the color-map required by the format expressed in a
+ count of components. This can be used to compile-time allocate a
+ color-map:
+
+ png_uint_16 colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(linear_fmt)];
+
+ png_byte colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(sRGB_fmt)];
+
+ Alternatively use the PNG_IMAGE_COLORMAP_SIZE macro below to use the
+ information from one of the png_image_begin_read_ APIs and dynamically
+ allocate the required memory.
+
PNG_IMAGE_COLORMAP_SIZE(fmt)
The size of the color-map required by the format; this is the size of the
- color-map buffer passed to the png_image_{read,write}_colormap APIs, it is
+ color-map buffer passed to the png_image_{read,write}_colormap APIs. It is
a fixed number determined by the format so can easily be allocated on the
stack if necessary.
-#define PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(fmt)\
- (PNG_IMAGE_SAMPLE_CHANNELS(fmt) * 256)
- /* The maximum size of the color-map required by the format expressed in a
- * count of components. This can be used to compile-time allocate a
- * color-map:
- *
- * png_uint_16 colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(linear_fmt)];
- *
- * png_byte colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(sRGB_fmt)];
- *
- * Alternatively, use the PNG_IMAGE_COLORMAP_SIZE macro below to use the
- * information from one of the png_image_begin_read_ APIs and dynamically
- * allocate the required memory.
- */
-
-
Corresponding information about the pixels
- PNG_IMAGE_PIXEL_(test,fmt)
-
PNG_IMAGE_PIXEL_CHANNELS(fmt)
The number of separate channels (components) in a pixel; 1 for a
color-mapped image.
to start the next row on a 4-byte boundary.
PNG_IMAGE_BUFFER_SIZE(image, row_stride)
- Returns the size, in bytes, of an image buffer given a png_image and a row
- stride - the number of components to leave space for in each row. This
- macro takes care of multiplying row_stride by PNG_IMAGE_PIXEL_COMONENT_SIZE
- when the image has 2-byte components.
+ Return the size, in bytes, of an image buffer given a png_image and a row
+ stride - the number of components to leave space for in each row.
+
+ PNG_IMAGE_SIZE(image)
+ Return the size, in bytes, of the image in memory given just a png_image;
+ the row stride is the minimum stride required for the image.
+
+ PNG_IMAGE_COLORMAP_SIZE(image)
+ Return the size, in bytes, of the color-map of this image. If the image
+ format is not a color-map format this will return a size sufficient for
+ 256 entries in the given format; check PNG_FORMAT_FLAG_COLORMAP if
+ you don't want to allocate a color-map in this case.
+
+PNG_IMAGE_FLAG_*
+
+Flags containing additional information about the image are held in
+the 'flags' field of png_image.
PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB == 0x01
This indicates the the RGB values of the in-memory bitmap do not
correspond to the red, green and blue end-points defined by sRGB.
- PNG_IMAGE_FLAG_COLORMAP == 0x02
- The PNG is color-mapped. If this flag is set png_image_read_colormap
- can be used without further loss of image information. If it is not set
- png_image_read_colormap will cause significant loss if the image has any
+ PNG_IMAGE_FLAG_FAST == 0x02
+ On write emphasise speed over compression; the resultant PNG file will be
+ larger but will be produced significantly faster, particular for large
+ images. Do not use this option for images which will be distributed, only
+ used it when producing intermediate files that will be read back in
+ repeatedly. For a typical 24-bit image the option will double the read
+ speed at the cost of increasing the image size by 25%, however for many
+ more compressible images the PNG file can be 10 times larger with only a
+ slight speed gain.
+
+ PNG_IMAGE_FLAG_16BIT_sRGB == 0x04
+ On read if the image is a 16-bit per component image and there is no gAMA
+ or sRGB chunk assume that the components are sRGB encoded. Notice that
+ images output by the simplified API always have gamma information; setting
+ this flag only affects the interpretation of 16-bit images from an
+ external source. It is recommended that the application expose this flag
+ to the user; the user can normally easily recognize the difference between
+ linear and sRGB encoding. This flag has no effect on write - the data
+ passed to the write APIs must have the correct encoding (as defined
+ above.)
+
+ If the flag is not set (the default) input 16-bit per component data is
+ assumed to be linear.
+
+ NOTE: the flag can only be set after the png_image_begin_read_ call,
+ because that call initializes the 'flags' field.
READ APIs
With all APIs row_stride is handled as in the read APIs - it is the spacing
from one row to the next in component sized units (float) and if negative
-indicates a bottom-up row layout in the buffer.
+indicates a bottom-up row layout in the buffer. If you pass zero, libpng will
+calculate the row_stride for you from the width and number of channels.
Note that the write API does not support interlacing, sub-8-bit pixels,
-and indexed (paletted) images.
+indexed (paletted) images, or most ancillary chunks.
VI. Modifying/Customizing libpng
same as the value of filter_method used
in png_set_IHDR().
-It is also possible to influence how libpng chooses from among the
-available filters. This is done in one or both of two ways - by
-telling it how important it is to keep the same filter for successive
-rows, and by telling it the relative computational costs of the filters.
-
- double weights[3] = {1.5, 1.3, 1.1},
- costs[PNG_FILTER_VALUE_LAST] =
- {1.0, 1.3, 1.3, 1.5, 1.7};
-
- png_set_filter_heuristics(png_ptr,
- PNG_FILTER_HEURISTIC_WEIGHTED, 3,
- weights, costs);
-
-The weights are multiplying factors that indicate to libpng that the
-row filter should be the same for successive rows unless another row filter
-is that many times better than the previous filter. In the above example,
-if the previous 3 filters were SUB, SUB, NONE, the SUB filter could have a
-"sum of absolute differences" 1.5 x 1.3 times higher than other filters
-and still be chosen, while the NONE filter could have a sum 1.1 times
-higher than other filters and still be chosen. Unspecified weights are
-taken to be 1.0, and the specified weights should probably be declining
-like those above in order to emphasize recent filters over older filters.
-
-The filter costs specify for each filter type a relative decoding cost
-to be considered when selecting row filters. This means that filters
-with higher costs are less likely to be chosen over filters with lower
-costs, unless their "sum of absolute differences" is that much smaller.
-The costs do not necessarily reflect the exact computational speeds of
-the various filters, since this would unduly influence the final image
-size.
-
-Note that the numbers above were invented purely for this example and
-are given only to help explain the function usage. Little testing has
-been done to find optimum values for either the costs or the weights.
-
Requesting debug printout
The macro definition PNG_DEBUG can be used to request debugging
application calls to png_set_user_limits(), png_set_user_chunk_cache_max(),
and/or png_set_user_malloc_max() that increase or decrease the limits. Also,
in libpng-1.5.10 the default width and height limits were increased
-from 1,000,000 to 0x7ffffff (i.e., made unlimited). Therefore, the
+from 1,000,000 to 0x7fffffff (i.e., made unlimited). Therefore, the
limits are now
default safe
png_user_width_max 0x7fffffff 1,000,000
png_user_chunk_malloc_max 0 (unlimited) 8,000,000
The png_set_option() function (and the "options" member of the png struct) was
-added to libpng-1.5.15.
+added to libpng-1.5.15, with option PNG_ARM_NEON.
The library now supports a complete fixed point implementation and can
thus be used on systems that have no floating point support or very
png_infop became png_inforp or png_const_inforp
where "rp" indicates a "restricted pointer".
+Dropped support for 16-bit platforms. The support for FAR/far types has
+been eliminated and the definition of png_alloc_size_t is now controlled
+by a flag so that 'small size_t' systems can select it if necessary.
+
Error detection in some chunks has improved; in particular the iCCP chunk
reader now does pretty complete validation of the basic format. Some bad
profiles that were previously accepted are now accepted with a warning or
-rejected, depending upon the png_set_benign_errors() setting, in particular the
-very old broken Microsoft/HP 3144-byte sRGB profile. Starting with
+rejected, depending upon the png_set_benign_errors() setting, in particular
+the very old broken Microsoft/HP 3144-byte sRGB profile. Starting with
libpng-1.6.11, recognizing and checking sRGB profiles can be avoided by
means of
#endif
It's not a good idea to do this if you are using the "simplified API",
-which needs to be able to recognize an sRGB profile conveyed via the iCCP
+which needs to be able to recognize sRGB profiles conveyed via the iCCP
chunk.
The PNG spec requirement that only grayscale profiles may appear in images
and is interpreted by libpng to convey a one-tracer-curve gray profile or a
three-tracer-curve RGB profile as appropriate.
+Libpng 1.5.x erroneously used /MD for Debug DLL builds; if you used the debug
+builds in your app and you changed your app to use /MD you will need to
+change it back to /MDd for libpng 1.6.x.
+
Prior to libpng-1.6.0 a warning would be issued if the iTXt chunk contained
an empty language field or an empty translated keyword. Both of these
are allowed by the PNG specification, so these warnings are no longer issued.
chunk. This error was fixed in libpng-1.6.3, and a tool (called
contrib/tools/png-fix-itxt) has been added to the libpng distribution.
+Starting with libpng-1.6.17, the PNG_SAFE_LIMITS macro was eliminated
+and safe limits are used by default (users who need larger limits
+can still override them at compile time or run time, as described above).
+
+The new limits are
+ default spec limit
+ png_user_width_max 1,000,000 2,147,483,647
+ png_user_height_max 1,000,000 2,147,483,647
+ png_user_chunk_cache_max 128 unlimited
+ png_user_chunk_malloc_max 8,000,000 unlimited
+
+Starting with libpng-1.6.18, a PNG_RELEASE_BUILD macro was added, which allows
+library builders to control compilation for an installed system (a release build).
+It can be set for testing debug or beta builds to ensure that they will compile
+when the build type is switched to RC or STABLE. In essence this overrides the
+PNG_LIBPNG_BUILD_BASE_TYPE definition which is not directly user controllable.
+
+Starting with libpng-1.6.19, attempting to set an over-length PLTE chunk
+is an error. Previously this requirement of the PNG specification was not
+enforced, and the palette was always limited to 256 entries. An over-length
+PLTE chunk found in an input PNG is silently truncated.
+
XIII. Detecting libpng
The png_get_io_ptr() function has been present since libpng-0.88, has never
}
The prototypes for non-exported functions (except for those in
-pngtest) appear in
-pngpriv.h
-above the comment that says
+pngtest) appear in pngpriv.h above the comment that says
/* Maintainer: Put new private prototypes here ^ */
+To avoid polluting the global namespace, the names of all exported
+functions and variables begin with "png_", and all publicly visible C
+preprocessor macros begin with "PNG". We request that applications that
+use libpng *not* begin any of their own symbols with either of these strings.
+
We put a space after the "sizeof" operator and we omit the
optional parentheses around its argument when the argument
is an expression, not a type name, and we always enclose the
Prior to libpng-1.6.0 we used a "png_sizeof()" macro, formatted as
though it were a function.
-To avoid polluting the global namespace, the names of all exported
-functions and variables begin with "png_", and all publicly visible C
-preprocessor macros begin with "PNG". We request that applications that
-use libpng *not* begin any of their own symbols with either of these strings.
+Control keywords if, for, while, and switch are always followed by a space
+to distinguish them from function calls, which have no trailing space.
We put a space after each comma and after each semicolon
in "for" statements, and we put spaces before and after each
when there is only one macro being tested. We always use parentheses
with "defined".
-We prefer to express integers that are used as bit masks in hex format,
-with an even number of lower-case hex digits (e.g., 0x00, 0xff, 0x0100).
+We express integer constants that are used as bit masks in hex format,
+with an even number of lower-case hex digits, and to make them unsigned
+(e.g., 0x00U, 0xffU, 0x0100U) and long if they are greater than 0x7fff
+(e.g., 0xffffUL).
-We prefer to use underscores in variable names rather than camelCase, except
+We prefer to use underscores rather than camelCase in names, except
for a few type names that we inherit from zlib.h.
We prefer "if (something != 0)" and "if (something == 0)"
XVI. Y2K Compliance in libpng
-August 21, 2014
-
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.6.13 are Y2K compliant. It is my belief that earlier
+upward through 1.6.21 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant.
Libpng only has two year fields. One is a 2-byte unsigned integer
There are seven time-related functions:
- png_convert_to_rfc_1123() in png.c
- (formerly png_convert_to_rfc_1152() in error)
+ png_convert_to_rfc_1123_buffer() in png.c
+ (formerly png_convert_to_rfc_1152() in error, and
+ also formerly png_convert_to_rfc_1123())
png_convert_from_struct_tm() in pngwrite.c, called
in pngwrite.c
png_convert_from_time_t() in pngwrite.c
-.TH LIBPNG 3 "August 21, 2014"
+.TH LIBPNG 3 "January 15, 2016"
.SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.6.13
+libpng \- Portable Network Graphics (PNG) Reference Library 1.6.21
.SH SYNOPSIS
\fB
#include <png.h>\fP
\fBpng_byte png_get_libpng_ver (png_const_structp \fIpng_ptr\fP\fB);\fP
+\fBint png_get_palette_max(png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP
+
\fBpng_voidp png_get_mem_ptr (png_const_structp \fIpng_ptr\fP\fB);\fP
\fBpng_uint_32 png_get_oFFs (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*offset_x\fP\fB, png_uint_32 \fP\fI*offset_y\fP\fB, int \fI*unit_type\fP\fB);\fP
\fBvoid png_set_oFFs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIoffset_x\fP\fB, png_uint_32 \fP\fIoffset_y\fP\fB, int \fIunit_type\fP\fB);\fP
+\fBint png_set_option(png_structrp \fP\fIpng_ptr\fP\fB, int \fP\fIoption\fP\fB, int \fIonoff\fP\fB);\fP
+
\fBvoid png_set_packing (png_structp \fIpng_ptr\fP\fB);\fP
\fBvoid png_set_packswap (png_structp \fIpng_ptr\fP\fB);\fP
.SH LIBPNG.TXT
libpng-manual.txt - A description on how to use and modify libpng
- libpng version 1.6.13 - August 21, 2014
+ libpng version 1.6.21 - January 15, 2016
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
- Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ Copyright (c) 1998-2016 Glenn Randers-Pehrson
This document is released under the libpng license.
For conditions of distribution and use, see the disclaimer
Based on:
- libpng versions 0.97, January 1998, through 1.6.13 - August 21, 2014
+ libpng versions 0.97, January 1998, through 1.6.21 - January 15, 2016
Updated and distributed by Glenn Randers-Pehrson
- Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ Copyright (c) 1998-2016 Glenn Randers-Pehrson
libpng 1.0 beta 6 - version 0.96 - May 28, 1997
Updated and distributed by Andreas Dilger
The W3C and ISO documents have identical technical content.
The PNG-1.2 specification is available at
-<http://www.libpng.org/pub/png/documents/>. It is technically equivalent
+<http://png-mng.sourceforge.net/pub/png/spec/1.2/>.
+It is technically equivalent
to the PNG specification (second edition) but has some additional material.
-The PNG-1.0 specification is available
-as RFC 2083 <http://www.libpng.org/pub/png/documents/> and as a
-W3C Recommendation <http://www.w3.org/TR/REC.png.html>.
+The PNG-1.0 specification is available as RFC 2083
+<http://png-mng.sourceforge.net/pub/png/spec/1.0/> and as a
+W3C Recommendation <http://www.w3.org/TR/REC-png-961001>.
Some additional chunks are described in the special-purpose public chunks
-documents at <http://www.libpng.org/pub/png/documents/>.
+documents at <http://www.libpng.org/pub/png/spec/register/>
Other information
about PNG, and the latest version of libpng, can be found at the PNG home
Libpng uses zlib for its compression and decompression of PNG files.
Further information about zlib, and the latest version of zlib, can
-be found at the zlib home page, <http://www.info-zip.org/pub/infozip/zlib/>.
+be found at the zlib home page, <http://zlib.net/>.
The zlib compression utility is a general purpose utility that is
useful for more than PNG files, and can be used without libpng.
See the documentation delivered with zlib for more details.
If you are intending to keep the file pointer open for use in libpng,
you must ensure you don't read more than 8 bytes from the beginning
-of the file, and you also have to make a call to png_set_sig_bytes_read()
+of the file, and you also have to make a call to png_set_sig_bytes()
with the number of bytes you read from the beginning. Libpng will
then only check the bytes (if any) that your program didn't read.
to replace them with custom functions. See the discussion under
Customizing libpng.
-
FILE *fp = fopen(file_name, "rb");
if (!fp)
{
return (ERROR);
}
- fread(header, 1, number, fp);
- is_png = !png_sig_cmp(header, 0, number);
+ if (fread(header, 1, number, fp) != number)
+ {
+ return (ERROR);
+ }
+ is_png = !png_sig_cmp(header, 0, number);
if (!is_png)
{
return (NOT_PNG);
}
-
Next, png_struct and png_info need to be allocated and initialized. In
order to ensure that the size of these structures is correct even with a
dynamically linked libpng, there are functions to initialize and
The PNG specification allows the width and height of an image to be as
large as 2^(31\-1 (0x7fffffff), or about 2.147 billion rows and columns.
-Since very few applications really need to process such large images,
-we have imposed an arbitrary 1-million limit on rows and columns.
+For safety, libpng imposes a default limit of 1 million rows and columns.
Larger images will be rejected immediately with a png_error() call. If
-you wish to change this limit, you can use
+you wish to change these limits, you can use
png_set_user_limits(png_ptr, width_max, height_max);
-to set your own limits, or use width_max = height_max = 0x7fffffffL
-to allow all valid dimensions (libpng may reject some very large images
+to set your own limits (libpng may reject some very wide images
anyway because of potential buffer overflow conditions).
You should put this statement after you create the PNG structure and
height_max = png_get_user_height_max(png_ptr);
The PNG specification sets no limit on the number of ancillary chunks
-allowed in a PNG datastream. You can impose a limit on the total number
-of sPLT, tEXt, iTXt, zTXt, and unknown chunks that will be stored, with
+allowed in a PNG datastream. By default, libpng imposes a limit of
+a total of 1000 sPLT, tEXt, iTXt, zTXt, and unknown chunks to be stored.
+If you have set up both info_ptr and end_info_ptr, the limit applies
+separately to each. You can change the limit on the total number of such
+chunks that will be stored, with
png_set_chunk_cache_max(png_ptr, user_chunk_cache_max);
chunk_cache_max = png_get_chunk_cache_max(png_ptr);
-You can also set a limit on the amount of memory that a compressed chunk
-other than IDAT can occupy, with
+Libpng imposes a limit of 8 Megabytes (8,000,000 bytes) on the amount of
+memory that a compressed chunk other than IDAT can occupy, when decompressed.
+You can change this limit with
png_set_chunk_malloc_max(png_ptr, user_chunk_malloc_max);
the PNG datastream is embedded in
a MNG-1.0 datastream)
- Any or all of interlace_type, compression_type, or
- filter_method can be NULL if you are
- not interested in their values.
+ Any of width, height, color_type, bit_depth,
+ interlace_type, compression_type, or filter_method can
+ be NULL if you are not interested in their values.
Note that png_get_IHDR() returns 32-bit data into
the application's width and height variables.
- This is an unsafe situation if these are 16-bit
+ This is an unsafe situation if these are not png_uint_32
variables. In such situations, the
png_get_image_width() and png_get_image_height()
functions described below are safer.
Data will be decoded into the supplied row buffers packed into bytes
unless the library has been told to transform it into another format.
For example, 4 bit/pixel paletted or grayscale data will be returned
-2 pixels/byte with the leftmost pixel in the high-order bits of the
-byte, unless png_set_packing() is called. 8-bit RGB data will be stored
+2 pixels/byte with the leftmost pixel in the high-order bits of the byte,
+unless png_set_packing() is called. 8-bit RGB data will be stored
in RGB RGB RGB format unless png_set_filler() or png_set_add_alpha()
is called to insert filler bytes, either before or after each RGB triplet.
+
16-bit RGB data will be returned RRGGBB RRGGBB, with the most significant
byte of the color value first, unless png_set_scale_16() is called to
transform it to regular RGB RGB triplets, or png_set_filler() or
-png_set_add alpha() is called to insert filler bytes, either before or
-after each RRGGBB triplet. Similarly, 8-bit or 16-bit grayscale data can
+png_set_add alpha() is called to insert two filler bytes, either before
+or after each RRGGBB triplet. Similarly, 8-bit or 16-bit grayscale data can
be modified with png_set_filler(), png_set_add_alpha(), png_set_strip_16(),
or png_set_scale_16().
if (color_type == PNG_COLOR_TYPE_RGB)
png_set_filler(png_ptr, filler, PNG_FILLER_BEFORE);
-where "filler" is the 8 or 16-bit number to fill with, and the location is
-either PNG_FILLER_BEFORE or PNG_FILLER_AFTER, depending upon whether
-you want the filler before the RGB or after. This transformation
-does not affect images that already have full alpha channels. To add an
-opaque alpha channel, use filler=0xff or 0xffff and PNG_FILLER_AFTER which
-will generate RGBA pixels.
+where "filler" is the 8-bit or 16-bit number to fill with, and the location
+is either PNG_FILLER_BEFORE or PNG_FILLER_AFTER, depending upon whether
+you want the filler before the RGB or after. When filling an 8-bit pixel,
+the least significant 8 bits of the number are used, if a 16-bit number is
+supplied. This transformation does not affect images that already have full
+alpha channels. To add an opaque alpha channel, use filler=0xffff and
+PNG_FILLER_AFTER which will generate RGBA pixels.
Note that png_set_filler() does not change the color type. If you want
to do that, you can add a true alpha channel with
png_set_add_alpha(png_ptr, filler, PNG_FILLER_AFTER);
where "filler" contains the alpha value to assign to each pixel.
-This function was added in libpng-1.2.7.
+The png_set_add_alpha() function was added in libpng-1.2.7.
If you are reading an image with an alpha channel, and you need the
data as ARGB instead of the normal PNG format RGBA:
The default values come from the PNG file cHRM chunk if present; otherwise, the
defaults correspond to the ITU-R recommendation 709, and also the sRGB color
space, as recommended in the Charles Poynton's Colour FAQ,
-<http://www.poynton.com/>, in section 9:
+Copyright (c) 2006-11-28 Charles Poynton, in section 9:
- <http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html#RTFToC9>
+<http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html#RTFToC9>
Y = 0.2126 * R + 0.7152 * G + 0.0722 * B
png_set_gamma(png_ptr, screen_gamma, 0.45455);
If you need to reduce an RGB file to a paletted file, or if a paletted
-file has more entries then will fit on your screen, png_set_quantize()
+file has more entries than will fit on your screen, png_set_quantize()
will do that. Note that this is a simple match quantization that merely
finds the closest color available. This should work fairly well with
optimized palettes, but fairly badly with linear color cubes. If you
64K. The library seems to run fine with sizes
of 4K. Although you can give it much less if
necessary (I assume you can give it chunks of
- 1 byte, I haven't tried less then 256 bytes
+ 1 byte, I haven't tried less than 256 bytes
yet). When this function returns, you may
want to display any rows that were generated
in the row callback if you don't already do
(array of png_color)
num_palette - number of entries in the palette
+
png_set_gAMA(png_ptr, info_ptr, file_gamma);
png_set_gAMA_fixed(png_ptr, info_ptr, int_file_gamma);
although this isn't a requirement. Unlike the tIME chunk, the
"Creation Time" tEXt chunk is not expected to be automatically changed
by the software. To facilitate the use of RFC 1123 dates, a function
-png_convert_to_rfc1123_buffer(png_ptr, buffer, png_timep) is provided to
+png_convert_to_rfc1123_buffer(buffer, png_timep) is provided to
convert from PNG time to an RFC 1123 format string. The caller must provide
a writeable buffer of at least 29 bytes.
To read a PNG file using the simplified API:
- 1) Declare a 'png_image' structure (see below) on the
- stack and memset() it to all zero.
+ 1) Declare a 'png_image' structure (see below) on the stack, set the
+ version field to PNG_IMAGE_VERSION and the 'opaque' pointer to NULL
+ (this is REQUIRED, your program may crash if you don't do it.)
2) Call the appropriate png_image_begin_read... function.
- 3) Set the png_image 'format' member to the required
- format and allocate a buffer for the image.
+ 3) Set the png_image 'format' member to the required sample format.
- 4) Call png_image_finish_read to read the image into
- your buffer.
+ 4) Allocate a buffer for the image and, if required, the color-map.
+
+ 5) Call png_image_finish_read to read the image and, if required, the
+ color-map into your buffers.
There are no restrictions on the format of the PNG input itself; all valid
color types, bit depths, and interlace methods are acceptable, and the
input image is transformed as necessary to the requested in-memory format
-during the png_image_finish_read() step.
+during the png_image_finish_read() step. The only caveat is that if you
+request a color-mapped image from a PNG that is full-color or makes
+complex use of an alpha channel the transformation is extremely lossy and the
+result may look terrible.
To write a PNG file using the simplified API:
2) Initialize the members of the structure that describe the
image, setting the 'format' member to the format of the
- image in memory.
+ image samples.
3) Call the appropriate png_image_write... function with a
- pointer to the image to write the PNG data.
+ pointer to the image and, if necessary, the color-map to write
+ the PNG data.
png_image is a structure that describes the in-memory format of an image
-when it is being read or define the in-memory format of an image that you
+when it is being read or defines the in-memory format of an image that you
need to write. The "png_image" structure contains the following members:
+ png_controlp opaque Initialize to NULL, free with png_image_free
png_uint_32 version Set to PNG_IMAGE_VERSION
png_uint_32 width Image width in pixels (columns)
png_uint_32 height Image height in pixels (rows)
png_uint_32 format Image format as defined below
png_uint_32 flags A bit mask containing informational flags
- png_controlp opaque Initialize to NULL, free with png_image_free
png_uint_32 colormap_entries; Number of entries in the color-map
png_uint_32 warning_or_error;
char message[64];
-In the event of an error or warning the following field warning_or_error
+In the event of an error or warning the "warning_or_error"
field will be set to a non-zero value and the 'message' field will contain
a '\0' terminated string with the libpng error or warning message. If both
warnings and an error were encountered, only the error is recorded. If there
are multiple warnings, only the first one is recorded.
-The upper 30 bits of this value are reserved; the low two bits contain
-a two bit code such that a value more than 1 indicates a failure in the API
-just called:
+The upper 30 bits of the "warning_or_error" value are reserved; the low two
+bits contain a two bit code such that a value more than 1 indicates a failure
+in the API just called:
0 - no warning or error
1 - warning
the sRGB specification. This encoding is identified by the
PNG_FORMAT_FLAG_LINEAR flag below.
+When the simplified API needs to convert between sRGB and linear colorspaces,
+the actual sRGB transfer curve defined in the sRGB specification (see the
+article at http://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2
+approximation used elsewhere in libpng.
+
When an alpha channel is present it is expected to denote pixel coverage
of the color or luminance channels and is returned as an associated alpha
channel: the color/gray channels are scaled (pre-multiplied) by the alpha
value.
-When a color-mapped image is used as a result of calling
-png_image_read_colormap or png_image_write_colormap the channels are encoded
-in the color-map and the descriptions above apply to the color-map entries.
-The image data is encoded as small integers, value 0..255, that index the
-entries in the color-map. One integer (one byte) is stored for each pixel.
+The samples are either contained directly in the image data, between 1 and 8
+bytes per pixel according to the encoding, or are held in a color-map indexed
+by bytes in the image data. In the case of a color-map the color-map entries
+are individual samples, encoded as above, and the image data has one byte per
+pixel to select the relevant sample from the color-map.
PNG_FORMAT_*
The #defines to be used in png_image::format. Each #define identifies a
particular layout of channel data and, if present, alpha values. There are
-separate defines for each of the two channel encodings.
+separate defines for each of the two component encodings.
-A format is built up using single bit flag values. Not all combinations are
-valid: use the bit flag values below for testing a format returned by the
-read APIs, but set formats from the derived values.
+A format is built up using single bit flag values. All combinations are
+valid. Formats can be built up from the flag values or you can use one of
+the predefined values below. When testing formats always use the FORMAT_FLAG
+macros to test for individual features - future versions of the library may
+add new flags.
When reading or writing color-mapped images the format should be set to the
format of the entries in the color-map then png_image_{read,write}_colormap
called to read or write the color-map and set the format correctly for the
image data. Do not set the PNG_FORMAT_FLAG_COLORMAP bit directly!
-NOTE: libpng can be built with particular features disabled, if you see
+NOTE: libpng can be built with particular features disabled. If you see
compiler errors because the definition of one of the following flags has been
compiled out it is because libpng does not have the required support. It is
possible, however, for the libpng configuration to enable the format on just
-read or just write; in that case you may see an error at run time. You can
-guard against this by checking for the definition of:
+read or just write; in that case you may see an error at run time.
+You can guard against this by checking for the definition of the
+appropriate "_SUPPORTED" macro, one of:
PNG_SIMPLIFIED_{READ,WRITE}_{BGR,AFIRST}_SUPPORTED
- PNG_FORMAT_FLAG_ALPHA 0x01 format with an alpha channel
- PNG_FORMAT_FLAG_COLOR 0x02 color format: otherwise grayscale
- PNG_FORMAT_FLAG_LINEAR 0x04 png_uint_16 channels else png_byte
- PNG_FORMAT_FLAG_COLORMAP 0x08 libpng use only
- PNG_FORMAT_FLAG_BGR 0x10 BGR colors, else order is RGB
- PNG_FORMAT_FLAG_AFIRST 0x20 alpha channel comes first
+ PNG_FORMAT_FLAG_ALPHA format with an alpha channel
+ PNG_FORMAT_FLAG_COLOR color format: otherwise grayscale
+ PNG_FORMAT_FLAG_LINEAR 2-byte channels else 1-byte
+ PNG_FORMAT_FLAG_COLORMAP image data is color-mapped
+ PNG_FORMAT_FLAG_BGR BGR colors, else order is RGB
+ PNG_FORMAT_FLAG_AFIRST alpha channel comes first
Supported formats are as follows. Future versions of libpng may support more
formats; for compatibility with older versions simply check if the format
macro is defined using #ifdef. These defines describe the in-memory layout
of the components of the pixels of the image.
-First the single byte formats:
+First the single byte (sRGB) formats:
- PNG_FORMAT_GRAY 0
- PNG_FORMAT_GA PNG_FORMAT_FLAG_ALPHA
- PNG_FORMAT_AG (PNG_FORMAT_GA|PNG_FORMAT_FLAG_AFIRST)
- PNG_FORMAT_RGB PNG_FORMAT_FLAG_COLOR
- PNG_FORMAT_BGR (PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_BGR)
- PNG_FORMAT_RGBA (PNG_FORMAT_RGB|PNG_FORMAT_FLAG_ALPHA)
- PNG_FORMAT_ARGB (PNG_FORMAT_RGBA|PNG_FORMAT_FLAG_AFIRST)
- PNG_FORMAT_BGRA (PNG_FORMAT_BGR|PNG_FORMAT_FLAG_ALPHA)
- PNG_FORMAT_ABGR (PNG_FORMAT_BGRA|PNG_FORMAT_FLAG_AFIRST)
+ PNG_FORMAT_GRAY
+ PNG_FORMAT_GA
+ PNG_FORMAT_AG
+ PNG_FORMAT_RGB
+ PNG_FORMAT_BGR
+ PNG_FORMAT_RGBA
+ PNG_FORMAT_ARGB
+ PNG_FORMAT_BGRA
+ PNG_FORMAT_ABGR
Then the linear 2-byte formats. When naming these "Y" is used to
indicate a luminance (gray) channel. The component order within the pixel
the native byte order for your platform, and there is no provision for
swapping the bytes to a different endian condition.
- PNG_FORMAT_LINEAR_Y PNG_FORMAT_FLAG_LINEAR
+ PNG_FORMAT_LINEAR_Y
PNG_FORMAT_LINEAR_Y_ALPHA
- (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_ALPHA)
PNG_FORMAT_LINEAR_RGB
- (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR)
PNG_FORMAT_LINEAR_RGB_ALPHA
- (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR|
- PNG_FORMAT_FLAG_ALPHA)
-Color-mapped formats are obtained by calling png_image_{read,write}_colormap,
-as appropriate after setting png_image::format to the format of the color-map
-to be read or written. Applications may check the value of
-PNG_FORMAT_FLAG_COLORMAP to see if they have called the colormap API. The
-format of the color-map may be extracted using the following macro.
+With color-mapped formats the image data is one byte for each pixel. The byte
+is an index into the color-map which is formatted as above. To obtain a
+color-mapped format it is sufficient just to add the PNG_FOMAT_FLAG_COLORMAP
+to one of the above definitions, or you can use one of the definitions below.
- PNG_FORMAT_OF_COLORMAP(fmt) ((fmt) & ~PNG_FORMAT_FLAG_COLORMAP)
+ PNG_FORMAT_RGB_COLORMAP
+ PNG_FORMAT_BGR_COLORMAP
+ PNG_FORMAT_RGBA_COLORMAP
+ PNG_FORMAT_ARGB_COLORMAP
+ PNG_FORMAT_BGRA_COLORMAP
+ PNG_FORMAT_ABGR_COLORMAP
PNG_IMAGE macros
structure. The PNG_IMAGE_SAMPLE_ macros return values appropriate to the
actual image sample values - either the entries in the color-map or the
pixels in the image. The PNG_IMAGE_PIXEL_ macros return corresponding values
-for the pixels and will always return 1 after a call to
-png_image_{read,write}_colormap. The remaining macros return information
-about the rows in the image and the complete image.
+for the pixels and will always return 1 for color-mapped formats. The
+remaining macros return information about the rows in the image and the
+complete image.
NOTE: All the macros that take a png_image::format parameter are compile time
constants if the format parameter is, itself, a constant. Therefore these
Similarly the macros are also pre-processor constants (sizeof is not used) so
they can be used in #if tests.
-First the information about the samples.
-
PNG_IMAGE_SAMPLE_CHANNELS(fmt)
Returns the total number of channels in a given format: 1..4
PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt)
Returns the size in bytes of a single component of a pixel or color-map
- entry (as appropriate) in the image.
+ entry (as appropriate) in the image: 1 or 2.
PNG_IMAGE_SAMPLE_SIZE(fmt)
This is the size of the sample data for one sample. If the image is
color-mapped it is the size of one color-map entry (and image pixels are
one byte in size), otherwise it is the size of one image pixel.
+ PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(fmt)
+ The maximum size of the color-map required by the format expressed in a
+ count of components. This can be used to compile-time allocate a
+ color-map:
+
+ png_uint_16 colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(linear_fmt)];
+
+ png_byte colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(sRGB_fmt)];
+
+ Alternatively use the PNG_IMAGE_COLORMAP_SIZE macro below to use the
+ information from one of the png_image_begin_read_ APIs and dynamically
+ allocate the required memory.
+
PNG_IMAGE_COLORMAP_SIZE(fmt)
The size of the color-map required by the format; this is the size of the
- color-map buffer passed to the png_image_{read,write}_colormap APIs, it is
+ color-map buffer passed to the png_image_{read,write}_colormap APIs. It is
a fixed number determined by the format so can easily be allocated on the
stack if necessary.
-#define PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(fmt)\
- (PNG_IMAGE_SAMPLE_CHANNELS(fmt) * 256)
- /* The maximum size of the color-map required by the format expressed in a
- * count of components. This can be used to compile-time allocate a
- * color-map:
- *
- * png_uint_16 colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(linear_fmt)];
- *
- * png_byte colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(sRGB_fmt)];
- *
- * Alternatively, use the PNG_IMAGE_COLORMAP_SIZE macro below to use the
- * information from one of the png_image_begin_read_ APIs and dynamically
- * allocate the required memory.
- */
-
-
Corresponding information about the pixels
- PNG_IMAGE_PIXEL_(test,fmt)
-
PNG_IMAGE_PIXEL_CHANNELS(fmt)
The number of separate channels (components) in a pixel; 1 for a
color-mapped image.
to start the next row on a 4-byte boundary.
PNG_IMAGE_BUFFER_SIZE(image, row_stride)
- Returns the size, in bytes, of an image buffer given a png_image and a row
- stride - the number of components to leave space for in each row. This
- macro takes care of multiplying row_stride by PNG_IMAGE_PIXEL_COMONENT_SIZE
- when the image has 2-byte components.
+ Return the size, in bytes, of an image buffer given a png_image and a row
+ stride - the number of components to leave space for in each row.
+
+ PNG_IMAGE_SIZE(image)
+ Return the size, in bytes, of the image in memory given just a png_image;
+ the row stride is the minimum stride required for the image.
+
+ PNG_IMAGE_COLORMAP_SIZE(image)
+ Return the size, in bytes, of the color-map of this image. If the image
+ format is not a color-map format this will return a size sufficient for
+ 256 entries in the given format; check PNG_FORMAT_FLAG_COLORMAP if
+ you don't want to allocate a color-map in this case.
+
+PNG_IMAGE_FLAG_*
+
+Flags containing additional information about the image are held in
+the 'flags' field of png_image.
PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB == 0x01
This indicates the the RGB values of the in-memory bitmap do not
correspond to the red, green and blue end-points defined by sRGB.
- PNG_IMAGE_FLAG_COLORMAP == 0x02
- The PNG is color-mapped. If this flag is set png_image_read_colormap
- can be used without further loss of image information. If it is not set
- png_image_read_colormap will cause significant loss if the image has any
+ PNG_IMAGE_FLAG_FAST == 0x02
+ On write emphasise speed over compression; the resultant PNG file will be
+ larger but will be produced significantly faster, particular for large
+ images. Do not use this option for images which will be distributed, only
+ used it when producing intermediate files that will be read back in
+ repeatedly. For a typical 24-bit image the option will double the read
+ speed at the cost of increasing the image size by 25%, however for many
+ more compressible images the PNG file can be 10 times larger with only a
+ slight speed gain.
+
+ PNG_IMAGE_FLAG_16BIT_sRGB == 0x04
+ On read if the image is a 16-bit per component image and there is no gAMA
+ or sRGB chunk assume that the components are sRGB encoded. Notice that
+ images output by the simplified API always have gamma information; setting
+ this flag only affects the interpretation of 16-bit images from an
+ external source. It is recommended that the application expose this flag
+ to the user; the user can normally easily recognize the difference between
+ linear and sRGB encoding. This flag has no effect on write - the data
+ passed to the write APIs must have the correct encoding (as defined
+ above.)
+
+ If the flag is not set (the default) input 16-bit per component data is
+ assumed to be linear.
+
+ NOTE: the flag can only be set after the png_image_begin_read_ call,
+ because that call initializes the 'flags' field.
READ APIs
With all APIs row_stride is handled as in the read APIs - it is the spacing
from one row to the next in component sized units (float) and if negative
-indicates a bottom-up row layout in the buffer.
+indicates a bottom-up row layout in the buffer. If you pass zero, libpng will
+calculate the row_stride for you from the width and number of channels.
Note that the write API does not support interlacing, sub-8-bit pixels,
-and indexed (paletted) images.
+indexed (paletted) images, or most ancillary chunks.
.SH VI. Modifying/Customizing libpng
same as the value of filter_method used
in png_set_IHDR().
-It is also possible to influence how libpng chooses from among the
-available filters. This is done in one or both of two ways - by
-telling it how important it is to keep the same filter for successive
-rows, and by telling it the relative computational costs of the filters.
-
- double weights[3] = {1.5, 1.3, 1.1},
- costs[PNG_FILTER_VALUE_LAST] =
- {1.0, 1.3, 1.3, 1.5, 1.7};
-
- png_set_filter_heuristics(png_ptr,
- PNG_FILTER_HEURISTIC_WEIGHTED, 3,
- weights, costs);
-
-The weights are multiplying factors that indicate to libpng that the
-row filter should be the same for successive rows unless another row filter
-is that many times better than the previous filter. In the above example,
-if the previous 3 filters were SUB, SUB, NONE, the SUB filter could have a
-"sum of absolute differences" 1.5 x 1.3 times higher than other filters
-and still be chosen, while the NONE filter could have a sum 1.1 times
-higher than other filters and still be chosen. Unspecified weights are
-taken to be 1.0, and the specified weights should probably be declining
-like those above in order to emphasize recent filters over older filters.
-
-The filter costs specify for each filter type a relative decoding cost
-to be considered when selecting row filters. This means that filters
-with higher costs are less likely to be chosen over filters with lower
-costs, unless their "sum of absolute differences" is that much smaller.
-The costs do not necessarily reflect the exact computational speeds of
-the various filters, since this would unduly influence the final image
-size.
-
-Note that the numbers above were invented purely for this example and
-are given only to help explain the function usage. Little testing has
-been done to find optimum values for either the costs or the weights.
-
.SS Requesting debug printout
The macro definition PNG_DEBUG can be used to request debugging
application calls to png_set_user_limits(), png_set_user_chunk_cache_max(),
and/or png_set_user_malloc_max() that increase or decrease the limits. Also,
in libpng-1.5.10 the default width and height limits were increased
-from 1,000,000 to 0x7ffffff (i.e., made unlimited). Therefore, the
+from 1,000,000 to 0x7fffffff (i.e., made unlimited). Therefore, the
limits are now
default safe
png_user_width_max 0x7fffffff 1,000,000
png_user_chunk_malloc_max 0 (unlimited) 8,000,000
The png_set_option() function (and the "options" member of the png struct) was
-added to libpng-1.5.15.
+added to libpng-1.5.15, with option PNG_ARM_NEON.
The library now supports a complete fixed point implementation and can
thus be used on systems that have no floating point support or very
png_infop became png_inforp or png_const_inforp
where "rp" indicates a "restricted pointer".
+Dropped support for 16-bit platforms. The support for FAR/far types has
+been eliminated and the definition of png_alloc_size_t is now controlled
+by a flag so that 'small size_t' systems can select it if necessary.
+
Error detection in some chunks has improved; in particular the iCCP chunk
reader now does pretty complete validation of the basic format. Some bad
profiles that were previously accepted are now accepted with a warning or
-rejected, depending upon the png_set_benign_errors() setting, in particular the
-very old broken Microsoft/HP 3144-byte sRGB profile. Starting with
+rejected, depending upon the png_set_benign_errors() setting, in particular
+the very old broken Microsoft/HP 3144-byte sRGB profile. Starting with
libpng-1.6.11, recognizing and checking sRGB profiles can be avoided by
means of
#endif
It's not a good idea to do this if you are using the "simplified API",
-which needs to be able to recognize an sRGB profile conveyed via the iCCP
+which needs to be able to recognize sRGB profiles conveyed via the iCCP
chunk.
The PNG spec requirement that only grayscale profiles may appear in images
and is interpreted by libpng to convey a one-tracer-curve gray profile or a
three-tracer-curve RGB profile as appropriate.
+Libpng 1.5.x erroneously used /MD for Debug DLL builds; if you used the debug
+builds in your app and you changed your app to use /MD you will need to
+change it back to /MDd for libpng 1.6.x.
+
Prior to libpng-1.6.0 a warning would be issued if the iTXt chunk contained
an empty language field or an empty translated keyword. Both of these
are allowed by the PNG specification, so these warnings are no longer issued.
chunk. This error was fixed in libpng-1.6.3, and a tool (called
contrib/tools/png-fix-itxt) has been added to the libpng distribution.
+Starting with libpng-1.6.17, the PNG_SAFE_LIMITS macro was eliminated
+and safe limits are used by default (users who need larger limits
+can still override them at compile time or run time, as described above).
+
+The new limits are
+ default spec limit
+ png_user_width_max 1,000,000 2,147,483,647
+ png_user_height_max 1,000,000 2,147,483,647
+ png_user_chunk_cache_max 128 unlimited
+ png_user_chunk_malloc_max 8,000,000 unlimited
+
+Starting with libpng-1.6.18, a PNG_RELEASE_BUILD macro was added, which allows
+library builders to control compilation for an installed system (a release build).
+It can be set for testing debug or beta builds to ensure that they will compile
+when the build type is switched to RC or STABLE. In essence this overrides the
+PNG_LIBPNG_BUILD_BASE_TYPE definition which is not directly user controllable.
+
+Starting with libpng-1.6.19, attempting to set an over-length PLTE chunk
+is an error. Previously this requirement of the PNG specification was not
+enforced, and the palette was always limited to 256 entries. An over-length
+PLTE chunk found in an input PNG is silently truncated.
+
.SH XIII. Detecting libpng
The png_get_io_ptr() function has been present since libpng-0.88, has never
}
The prototypes for non-exported functions (except for those in
-pngtest) appear in
-pngpriv.h
-above the comment that says
+pngtest) appear in pngpriv.h above the comment that says
/* Maintainer: Put new private prototypes here ^ */
+To avoid polluting the global namespace, the names of all exported
+functions and variables begin with "png_", and all publicly visible C
+preprocessor macros begin with "PNG". We request that applications that
+use libpng *not* begin any of their own symbols with either of these strings.
+
We put a space after the "sizeof" operator and we omit the
optional parentheses around its argument when the argument
is an expression, not a type name, and we always enclose the
Prior to libpng-1.6.0 we used a "png_sizeof()" macro, formatted as
though it were a function.
-To avoid polluting the global namespace, the names of all exported
-functions and variables begin with "png_", and all publicly visible C
-preprocessor macros begin with "PNG". We request that applications that
-use libpng *not* begin any of their own symbols with either of these strings.
+Control keywords if, for, while, and switch are always followed by a space
+to distinguish them from function calls, which have no trailing space.
We put a space after each comma and after each semicolon
in "for" statements, and we put spaces before and after each
when there is only one macro being tested. We always use parentheses
with "defined".
-We prefer to express integers that are used as bit masks in hex format,
-with an even number of lower-case hex digits (e.g., 0x00, 0xff, 0x0100).
+We express integer constants that are used as bit masks in hex format,
+with an even number of lower-case hex digits, and to make them unsigned
+(e.g., 0x00U, 0xffU, 0x0100U) and long if they are greater than 0x7fff
+(e.g., 0xffffUL).
-We prefer to use underscores in variable names rather than camelCase, except
+We prefer to use underscores rather than camelCase in names, except
for a few type names that we inherit from zlib.h.
We prefer "if (something != 0)" and "if (something == 0)"
.SH XVI. Y2K Compliance in libpng
-August 21, 2014
-
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.6.13 are Y2K compliant. It is my belief that earlier
+upward through 1.6.21 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant.
Libpng only has two year fields. One is a 2-byte unsigned integer
There are seven time-related functions:
- png_convert_to_rfc_1123() in png.c
- (formerly png_convert_to_rfc_1152() in error)
+ png_convert_to_rfc_1123_buffer() in png.c
+ (formerly png_convert_to_rfc_1152() in error, and
+ also formerly png_convert_to_rfc_1123())
png_convert_from_struct_tm() in pngwrite.c, called
in pngwrite.c
png_convert_from_time_t() in pngwrite.c
source png.h png.h shared-lib
version string int version
------- ------ ----- ----------
- 0.89c ("beta 3") 0.89 89 1.0.89
- 0.90 ("beta 4") 0.90 90 0.90
- 0.95 ("beta 5") 0.95 95 0.95
- 0.96 ("beta 6") 0.96 96 0.96
- 0.97b ("beta 7") 1.00.97 97 1.0.1
- 0.97c 0.97 97 2.0.97
- 0.98 0.98 98 2.0.98
- 0.99 0.99 98 2.0.99
- 0.99a-m 0.99 99 2.0.99
- 1.00 1.00 100 2.1.0
- 1.0.0 1.0.0 100 2.1.0
- 1.0.0 (from here on, the 100 2.1.0
- 1.0.1 png.h string is 10001 2.1.0
- 1.0.1a-e identical to the 10002 from here on, the
- 1.0.2 source version) 10002 shared library is 2.V
- 1.0.2a-b 10003 where V is the source
- 1.0.1 10001 code version except as
- 1.0.1a-e 10002 2.1.0.1a-e noted.
- 1.0.2 10002 2.1.0.2
- 1.0.2a-b 10003 2.1.0.2a-b
- 1.0.3 10003 2.1.0.3
- 1.0.3a-d 10004 2.1.0.3a-d
- 1.0.4 10004 2.1.0.4
- 1.0.4a-f 10005 2.1.0.4a-f
- 1.0.5 (+ 2 patches) 10005 2.1.0.5
- 1.0.5a-d 10006 2.1.0.5a-d
- 1.0.5e-r 10100 2.1.0.5e-r
- 1.0.5s-v 10006 2.1.0.5s-v
- 1.0.6 (+ 3 patches) 10006 2.1.0.6
- 1.0.6d-g 10007 2.1.0.6d-g
- 1.0.6h 10007 10.6h
- 1.0.6i 10007 10.6i
- 1.0.6j 10007 2.1.0.6j
- 1.0.7beta11-14 DLLNUM 10007 2.1.0.7beta11-14
- 1.0.7beta15-18 1 10007 2.1.0.7beta15-18
- 1.0.7rc1-2 1 10007 2.1.0.7rc1-2
- 1.0.7 1 10007 2.1.0.7
- 1.0.8beta1-4 1 10008 2.1.0.8beta1-4
- 1.0.8rc1 1 10008 2.1.0.8rc1
- 1.0.8 1 10008 2.1.0.8
- 1.0.9beta1-6 1 10009 2.1.0.9beta1-6
- 1.0.9rc1 1 10009 2.1.0.9rc1
- 1.0.9beta7-10 1 10009 2.1.0.9beta7-10
- 1.0.9rc2 1 10009 2.1.0.9rc2
- 1.0.9 1 10009 2.1.0.9
- 1.0.10beta1 1 10010 2.1.0.10beta1
- 1.0.10rc1 1 10010 2.1.0.10rc1
- 1.0.10 1 10010 2.1.0.10
- 1.0.11beta1-3 1 10011 2.1.0.11beta1-3
- 1.0.11rc1 1 10011 2.1.0.11rc1
- 1.0.11 1 10011 2.1.0.11
- 1.0.12beta1-2 2 10012 2.1.0.12beta1-2
- 1.0.12rc1 2 10012 2.1.0.12rc1
- 1.0.12 2 10012 2.1.0.12
- 1.1.0a-f - 10100 2.1.1.0a-f abandoned
- 1.2.0beta1-2 2 10200 2.1.2.0beta1-2
- 1.2.0beta3-5 3 10200 3.1.2.0beta3-5
- 1.2.0rc1 3 10200 3.1.2.0rc1
- 1.2.0 3 10200 3.1.2.0
- 1.2.1beta-4 3 10201 3.1.2.1beta1-4
- 1.2.1rc1-2 3 10201 3.1.2.1rc1-2
- 1.2.1 3 10201 3.1.2.1
- 1.2.2beta1-6 12 10202 12.so.0.1.2.2beta1-6
- 1.0.13beta1 10 10013 10.so.0.1.0.13beta1
- 1.0.13rc1 10 10013 10.so.0.1.0.13rc1
- 1.2.2rc1 12 10202 12.so.0.1.2.2rc1
- 1.0.13 10 10013 10.so.0.1.0.13
- 1.2.2 12 10202 12.so.0.1.2.2
- 1.2.3rc1-6 12 10203 12.so.0.1.2.3rc1-6
- 1.2.3 12 10203 12.so.0.1.2.3
- 1.2.4beta1-3 13 10204 12.so.0.1.2.4beta1-3
- 1.2.4rc1 13 10204 12.so.0.1.2.4rc1
- 1.0.14 10 10014 10.so.0.1.0.14
- 1.2.4 13 10204 12.so.0.1.2.4
- 1.2.5beta1-2 13 10205 12.so.0.1.2.5beta1-2
- 1.0.15rc1 10 10015 10.so.0.1.0.15rc1
- 1.0.15 10 10015 10.so.0.1.0.15
- 1.2.5 13 10205 12.so.0.1.2.5
- 1.2.6beta1-4 13 10206 12.so.0.1.2.6beta1-4
- 1.2.6rc1-5 13 10206 12.so.0.1.2.6rc1-5
- 1.0.16 10 10016 10.so.0.1.0.16
- 1.2.6 13 10206 12.so.0.1.2.6
- 1.2.7beta1-2 13 10207 12.so.0.1.2.7beta1-2
- 1.0.17rc1 10 10017 12.so.0.1.0.17rc1
- 1.2.7rc1 13 10207 12.so.0.1.2.7rc1
- 1.0.17 10 10017 12.so.0.1.0.17
- 1.2.7 13 10207 12.so.0.1.2.7
- 1.2.8beta1-5 13 10208 12.so.0.1.2.8beta1-5
- 1.0.18rc1-5 10 10018 12.so.0.1.0.18rc1-5
- 1.2.8rc1-5 13 10208 12.so.0.1.2.8rc1-5
- 1.0.18 10 10018 12.so.0.1.0.18
- 1.2.8 13 10208 12.so.0.1.2.8
- 1.2.9beta1-3 13 10209 12.so.0.1.2.9beta1-3
- 1.2.9beta4-11 13 10209 12.so.0.9[.0]
- 1.2.9rc1 13 10209 12.so.0.9[.0]
- 1.2.9 13 10209 12.so.0.9[.0]
- 1.2.10beta1-7 13 10210 12.so.0.10[.0]
- 1.2.10rc1-2 13 10210 12.so.0.10[.0]
- 1.2.10 13 10210 12.so.0.10[.0]
- 1.4.0beta1-6 14 10400 14.so.0.0[.0]
- 1.2.11beta1-4 13 10210 12.so.0.11[.0]
- 1.4.0beta7-8 14 10400 14.so.0.0[.0]
- 1.2.11 13 10211 12.so.0.11[.0]
- 1.2.12 13 10212 12.so.0.12[.0]
- 1.4.0beta9-14 14 10400 14.so.0.0[.0]
- 1.2.13 13 10213 12.so.0.13[.0]
- 1.4.0beta15-36 14 10400 14.so.0.0[.0]
- 1.4.0beta37-87 14 10400 14.so.14.0[.0]
- 1.4.0rc01 14 10400 14.so.14.0[.0]
- 1.4.0beta88-109 14 10400 14.so.14.0[.0]
- 1.4.0rc02-08 14 10400 14.so.14.0[.0]
- 1.4.0 14 10400 14.so.14.0[.0]
- 1.4.1beta01-03 14 10401 14.so.14.1[.0]
- 1.4.1rc01 14 10401 14.so.14.1[.0]
- 1.4.1beta04-12 14 10401 14.so.14.1[.0]
- 1.4.1 14 10401 14.so.14.1[.0]
- 1.4.2 14 10402 14.so.14.2[.0]
- 1.4.3 14 10403 14.so.14.3[.0]
- 1.4.4 14 10404 14.so.14.4[.0]
- 1.5.0beta01-58 15 10500 15.so.15.0[.0]
- 1.5.0rc01-07 15 10500 15.so.15.0[.0]
- 1.5.0 15 10500 15.so.15.0[.0]
- 1.5.1beta01-11 15 10501 15.so.15.1[.0]
- 1.5.1rc01-02 15 10501 15.so.15.1[.0]
- 1.5.1 15 10501 15.so.15.1[.0]
- 1.5.2beta01-03 15 10502 15.so.15.2[.0]
- 1.5.2rc01-03 15 10502 15.so.15.2[.0]
- 1.5.2 15 10502 15.so.15.2[.0]
- 1.5.3beta01-10 15 10503 15.so.15.3[.0]
- 1.5.3rc01-02 15 10503 15.so.15.3[.0]
- 1.5.3beta11 15 10503 15.so.15.3[.0]
- 1.5.3 [omitted]
- 1.5.4beta01-08 15 10504 15.so.15.4[.0]
- 1.5.4rc01 15 10504 15.so.15.4[.0]
- 1.5.4 15 10504 15.so.15.4[.0]
- 1.5.5beta01-08 15 10505 15.so.15.5[.0]
- 1.5.5rc01 15 10505 15.so.15.5[.0]
- 1.5.5 15 10505 15.so.15.5[.0]
- 1.5.6beta01-07 15 10506 15.so.15.6[.0]
- 1.5.6rc01-03 15 10506 15.so.15.6[.0]
- 1.5.6 15 10506 15.so.15.6[.0]
- 1.5.7beta01-05 15 10507 15.so.15.7[.0]
- 1.5.7rc01-03 15 10507 15.so.15.7[.0]
- 1.5.7 15 10507 15.so.15.7[.0]
- 1.6.0beta01-40 16 10600 16.so.16.0[.0]
- 1.6.0rc01-08 16 10600 16.so.16.0[.0]
- 1.6.0 16 10600 16.so.16.0[.0]
- 1.6.1beta01-09 16 10601 16.so.16.1[.0]
- 1.6.1rc01 16 10601 16.so.16.1[.0]
- 1.6.1 16 10601 16.so.16.1[.0]
- 1.6.2beta01 16 10602 16.so.16.2[.0]
- 1.6.2rc01-06 16 10602 16.so.16.2[.0]
- 1.6.2 16 10602 16.so.16.2[.0]
- 1.6.3beta01-11 16 10603 16.so.16.3[.0]
- 1.6.3rc01 16 10603 16.so.16.3[.0]
- 1.6.3 16 10603 16.so.16.3[.0]
- 1.6.4beta01-02 16 10604 16.so.16.4[.0]
- 1.6.4rc01 16 10604 16.so.16.4[.0]
- 1.6.4 16 10604 16.so.16.4[.0]
- 1.6.5 16 10605 16.so.16.5[.0]
- 1.6.6 16 10606 16.so.16.6[.0]
- 1.6.7beta01-04 16 10607 16.so.16.7[.0]
- 1.6.7rc01-02 16 10607 16.so.16.7[.0]
- 1.6.7 16 10607 16.so.16.7[.0]
- 1.6.8beta01-02 16 10608 16.so.16.8[.0]
- 1.6.8rc01-02 16 10608 16.so.16.8[.0]
- 1.6.8 16 10608 16.so.16.8[.0]
- 1.6.9beta01-04 16 10609 16.so.16.9[.0]
- 1.6.9rc01-02 16 10609 16.so.16.9[.0]
- 1.6.9 16 10609 16.so.16.9[.0]
- 1.6.10beta01-03 16 10610 16.so.16.10[.0]
- 1.6.10rc01-03 16 10610 16.so.16.10[.0]
- 1.6.10 16 10610 16.so.16.10[.0]
- 1.6.11beta01-06 16 10611 16.so.16.11[.0]
- 1.6.11rc01-02 16 10611 16.so.16.11[.0]
- 1.6.11 16 10611 16.so.16.11[.0]
- 1.6.12rc01 16 10612 16.so.16.12[.0]
- 1.6.12 16 10612 16.so.16.12[.0]
- 1.6.13beta01-04 16 10613 16.so.16.13[.0]
- 1.6.13rc01-02 16 10613 16.so.16.13[.0]
- 1.6.13 16 10613 16.so.16.13[.0]
+ 0.89c "1.0 beta 3" 0.89 89 1.0.89
+ 0.90 "1.0 beta 4" 0.90 90 0.90 [should have been 2.0.90]
+ 0.95 "1.0 beta 5" 0.95 95 0.95 [should have been 2.0.95]
+ 0.96 "1.0 beta 6" 0.96 96 0.96 [should have been 2.0.96]
+ 0.97b "1.00.97 beta 7" 1.00.97 97 1.0.1 [should have been 2.0.97]
+ 0.97c 0.97 97 2.0.97
+ 0.98 0.98 98 2.0.98
+ 0.99 0.99 98 2.0.99
+ 0.99a-m 0.99 99 2.0.99
+ 1.00 1.00 100 2.1.0 [100 should be 10000]
+ 1.0.0 (from here on, the 100 2.1.0 [100 should be 10000]
+ 1.0.1 png.h string is 10001 2.1.0
+ 1.0.1a-e identical to the 10002 from here on, the shared library
+ 1.0.2 source version) 10002 is 2.V where V is the source code
+ 1.0.2a-b 10003 version, except as noted.
+ 1.0.3 10003
+ 1.0.3a-d 10004
+ 1.0.4 10004
+ 1.0.4a-f 10005
+ 1.0.5 (+ 2 patches) 10005
+ 1.0.5a-d 10006
+ 1.0.5e-r 10100 (not source compatible)
+ 1.0.5s-v 10006 (not binary compatible)
+ 1.0.6 (+ 3 patches) 10006 (still binary incompatible)
+ 1.0.6d-f 10007 (still binary incompatible)
+ 1.0.6g 10007
+ 1.0.6h 10007 10.6h (testing xy.z so-numbering)
+ 1.0.6i 10007 10.6i
+ 1.0.6j 10007 2.1.0.6j (incompatible with 1.0.0)
+ 1.0.7beta11-14 DLLNUM 10007 2.1.0.7beta11-14 (binary compatible)
+ 1.0.7beta15-18 1 10007 2.1.0.7beta15-18 (binary compatible)
+ 1.0.7rc1-2 1 10007 2.1.0.7rc1-2 (binary compatible)
+ 1.0.7 1 10007 (still compatible)
+ ...
+ 1.0.19 10 10019 10.so.0.19[.0]
+ ...
+ 1.2.53 13 10253 12.so.0.53[.0]
+ ...
+ 1.5.23 15 10523 15.so.15.23[.0]
+ ...
+ 1.6.21 16 10621 16.so.16.21[.0]
Henceforth the source version will match the shared-library minor
and patch numbers; the shared-library major version number will be
to the source version x.y.z (leading zeros in y and z). Beta versions
were given the previous public release number plus a letter, until
version 1.0.6j; from then on they were given the upcoming public
-release number plus "betaNN" or "rcN".
+release number plus "betaNN" or "rcNN".
.SH "SEE ALSO"
-.BR "png"(5), " libpngpf"(3), " zlib"(3), " deflate"(5), " " and " zlib"(5)
-
+.IR libpngpf(3) ", " png(5)
.LP
.IR libpng :
.IP
.I libpng
or at
.br
-ftp://ds.internic.net/rfc/rfc2083.txt
+ftp://ftp.rfc-editor.org:/in-notes/rfc2083.txt
.br
or (as a W3C Recommendation) at
.br
Thanks to Frank J. T. Wojcik for helping with the documentation.
-Libpng version 1.6.13 - August 21, 2014:
+Libpng version 1.6.21 - January 15, 2016:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
https://lists.sourceforge.net/lists/listinfo/png-mng-implement
to subscribe).
-.SH COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
+.SH NOTICES:
-(This copy of the libpng notices is provided for your convenience. In case of
+This copy of the libpng notices is provided for your convenience. In case of
any discrepancy between this copy and the notices in the file png.h that is
-included in the libpng distribution, the latter shall prevail.)
+included in the libpng distribution, the latter shall prevail.
+
+COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
If you modify libpng you may insert additional notices immediately following
this sentence.
This code is released under the libpng license.
-libpng versions 1.2.6, August 15, 2004, through 1.6.13, August 21, 2014, are
-Copyright (c) 2004,2006-2014 Glenn Randers-Pehrson, and are
-distributed according to the same disclaimer and license as libpng-1.2.5
-with the following individual added to the list of Contributing Authors
-
- Cosmin Truta
-
-libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are
-Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
-distributed according to the same disclaimer and license as libpng-1.0.6
-with the following individuals added to the list of Contributing Authors
+libpng versions 1.0.7, July 1, 2000, through 1.6.21, January 15, 2016, are
+Copyright (c) 2000-2002, 2004, 2006-2016 Glenn Randers-Pehrson, are
+derived from libpng-1.0.6, and are distributed according to the same
+disclaimer and license as libpng-1.0.6 with the following individuals
+added to the list of Contributing Authors:
Simon-Pierre Cadieux
Eric S. Raymond
+ Mans Rullgard
+ Cosmin Truta
Gilles Vollant
+ James Yu
and with the following additions to the disclaimer:
- There is no warranty against interference with your
- enjoyment of the library or against infringement.
- There is no warranty that our efforts or the library
- will fulfill any of your particular purposes or needs.
- This library is provided with all faults, and the entire
- risk of satisfactory quality, performance, accuracy, and
- effort is with the user.
+ There is no warranty against interference with your enjoyment of the
+ library or against infringement. There is no warranty that our
+ efforts or the library will fulfill any of your particular purposes
+ or needs. This library is provided with all faults, and the entire
+ risk of satisfactory quality, performance, accuracy, and effort is with
+ the user.
libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
-Copyright (c) 1998, 1999 Glenn Randers-Pehrson
-Distributed according to the same disclaimer and license as libpng-0.96,
-with the following individuals added to the list of Contributing Authors:
+Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from
+libpng-0.96, and are distributed according to the same disclaimer and
+license as libpng-0.96, with the following individuals added to the list
+of Contributing Authors:
Tom Lane
Glenn Randers-Pehrson
Willem van Schaik
libpng versions 0.89, June 1996, through 0.96, May 1997, are
-Copyright (c) 1996, 1997 Andreas Dilger
-Distributed according to the same disclaimer and license as libpng-0.88,
-with the following individuals added to the list of Contributing Authors:
+Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88,
+and are distributed according to the same disclaimer and license as
+libpng-0.88, with the following individuals added to the list of
+Contributing Authors:
John Bowler
Kevin Bracey
Tom Tanner
libpng versions 0.5, May 1995, through 0.88, January 1996, are
-Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
+Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
For the purposes of this copyright and license, "Contributing Authors"
is defined as the following set of individuals:
source code, or portions hereof, for any purpose, without fee, subject
to the following restrictions:
-1. The origin of this source code must not be misrepresented.
+ 1. The origin of this source code must not be misrepresented.
-2. Altered versions must be plainly marked as such and
- must not be misrepresented as being the original source.
+ 2. Altered versions must be plainly marked as such and must not
+ be misrepresented as being the original source.
-3. This Copyright notice may not be removed or altered from
- any source or altered source distribution.
+ 3. This Copyright notice may not be removed or altered from any
+ source or altered source distribution.
The Contributing Authors and Group 42, Inc. specifically permit, without
fee, and encourage the use of this source code as a component to
source code in a product, acknowledgment is not required but would be
appreciated.
+END OF COPYRIGHT NOTICE, DISCLAIMER, and LICENSE.
A "png_get_copyright" function is available, for convenient use in "about"
boxes and the like:
- printf("%s",png_get_copyright(NULL));
+ printf("%s", png_get_copyright(NULL));
Also, the PNG logo (in PNG format, of course) is supplied in the
files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
-Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a
-certification mark of the Open Source Initiative.
+Libpng is OSI Certified Open Source Software. OSI Certified Open Source is
+a certification mark of the Open Source Initiative. OSI has not addressed
+the additional disclaimers inserted at version 1.0.7.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
-August 21, 2014
+January 15, 2016
.\" end of man page
-.TH LIBPNGPF 3 "August 21, 2014"
+.TH LIBPNGPF 3 "January 15, 2016"
.SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.6.13
+libpng \- Portable Network Graphics (PNG) Reference Library 1.6.21
(private functions)
.SH SYNOPSIS
\fB#include \fI"pngpriv.h"
+#! /bin/sh
+## DO NOT EDIT - This file generated from ./build-aux/ltmain.in
+## by inline-source v2014-01-03.01
-# libtool (GNU libtool) 2.4.2
+# libtool (GNU libtool) 2.4.6
+# Provide generalized library-building support services.
# Written by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
-# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006,
-# 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+# Copyright (C) 1996-2015 Free Software Foundation, Inc.
# This is free software; see the source for copying conditions. There is NO
# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
-# along with GNU Libtool; see the file COPYING. If not, a copy
-# can be downloaded from http://www.gnu.org/licenses/gpl.html,
-# or obtained by writing to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
-# Usage: $progname [OPTION]... [MODE-ARG]...
-#
-# Provide generalized library-building support services.
-#
-# --config show all configuration variables
-# --debug enable verbose shell tracing
-# -n, --dry-run display commands without modifying any files
-# --features display basic configuration information and exit
-# --mode=MODE use operation mode MODE
-# --preserve-dup-deps don't remove duplicate dependency libraries
-# --quiet, --silent don't print informational messages
-# --no-quiet, --no-silent
-# print informational messages (default)
-# --no-warn don't display warning messages
-# --tag=TAG use configuration variables from tag TAG
-# -v, --verbose print more informational messages than default
-# --no-verbose don't print the extra informational messages
-# --version print version information
-# -h, --help, --help-all print short, long, or detailed help message
-#
-# MODE must be one of the following:
-#
-# clean remove files from the build directory
-# compile compile a source file into a libtool object
-# execute automatically set library path, then run a program
-# finish complete the installation of libtool libraries
-# install install libraries or executables
-# link create a library or an executable
-# uninstall remove libraries from an installed directory
-#
-# MODE-ARGS vary depending on the MODE. When passed as first option,
-# `--mode=MODE' may be abbreviated as `MODE' or a unique abbreviation of that.
-# Try `$progname --help --mode=MODE' for a more detailed description of MODE.
-#
-# When reporting a bug, please describe a test case to reproduce it and
-# include the following information:
-#
-# host-triplet: $host
-# shell: $SHELL
-# compiler: $LTCC
-# compiler flags: $LTCFLAGS
-# linker: $LD (gnu? $with_gnu_ld)
-# $progname: (GNU libtool) 2.4.2
-# automake: $automake_version
-# autoconf: $autoconf_version
-#
-# Report bugs to <bug-libtool@gnu.org>.
-# GNU libtool home page: <http://www.gnu.org/software/libtool/>.
-# General help using GNU software: <http://www.gnu.org/gethelp/>.
PROGRAM=libtool
PACKAGE=libtool
-VERSION=2.4.2
-TIMESTAMP=""
-package_revision=1.3337
+VERSION=2.4.6
+package_revision=2.4.6
-# Be Bourne compatible
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# Run './libtool --help' for help with using this script from the
+# command line.
+
+
+## ------------------------------- ##
+## User overridable command paths. ##
+## ------------------------------- ##
+
+# After configure completes, it has a better idea of some of the
+# shell tools we need than the defaults used by the functions shared
+# with bootstrap, so set those here where they can still be over-
+# ridden by the user, but otherwise take precedence.
+
+: ${AUTOCONF="autoconf"}
+: ${AUTOMAKE="automake"}
+
+
+## -------------------------- ##
+## Source external libraries. ##
+## -------------------------- ##
+
+# Much of our low-level functionality needs to be sourced from external
+# libraries, which are installed to $pkgauxdir.
+
+# Set a version string for this script.
+scriptversion=2015-01-20.17; # UTC
+
+# General shell script boiler plate, and helper functions.
+# Written by Gary V. Vaughan, 2004
+
+# Copyright (C) 2004-2015 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions. There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+
+# As a special exception to the GNU General Public License, if you distribute
+# this file as part of a program or library that is built using GNU Libtool,
+# you may include this file under the same distribution terms that you use
+# for the rest of that program.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# Please report bugs or propose patches to gary@gnu.org.
+
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# Evaluate this file near the top of your script to gain access to
+# the functions and variables defined here:
+#
+# . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh
+#
+# If you need to override any of the default environment variable
+# settings, do that before evaluating this file.
+
+
+## -------------------- ##
+## Shell normalisation. ##
+## -------------------- ##
+
+# Some shells need a little help to be as Bourne compatible as possible.
+# Before doing anything else, make sure all that help has been provided!
+
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
emulate sh
NULLCMD=:
- # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
+ # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
# is contrary to our usage. Disable this feature.
alias -g '${1+"$@"}'='"$@"'
setopt NO_GLOB_SUBST
else
- case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
+ case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac
fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# A function that is used when there is no print builtin or printf.
-func_fallback_echo ()
-{
- eval 'cat <<_LTECHO_EOF
-$1
-_LTECHO_EOF'
-}
-# NLS nuisances: We save the old values to restore during execute mode.
-lt_user_locale=
-lt_safe_locale=
-for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
+# NLS nuisances: We save the old values in case they are required later.
+_G_user_locale=
+_G_safe_locale=
+for _G_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
do
- eval "if test \"\${$lt_var+set}\" = set; then
- save_$lt_var=\$$lt_var
- $lt_var=C
- export $lt_var
- lt_user_locale=\"$lt_var=\\\$save_\$lt_var; \$lt_user_locale\"
- lt_safe_locale=\"$lt_var=C; \$lt_safe_locale\"
+ eval "if test set = \"\${$_G_var+set}\"; then
+ save_$_G_var=\$$_G_var
+ $_G_var=C
+ export $_G_var
+ _G_user_locale=\"$_G_var=\\\$save_\$_G_var; \$_G_user_locale\"
+ _G_safe_locale=\"$_G_var=C; \$_G_safe_locale\"
fi"
done
-LC_ALL=C
-LANGUAGE=C
-export LANGUAGE LC_ALL
-$lt_unset CDPATH
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+# Make sure IFS has a sensible default
+sp=' '
+nl='
+'
+IFS="$sp $nl"
+
+# There are apparently some retarded systems that use ';' as a PATH separator!
+if test "${PATH_SEPARATOR+set}" != set; then
+ PATH_SEPARATOR=:
+ (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+ (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+ PATH_SEPARATOR=';'
+ }
+fi
-# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
-# is ksh but when the shell is invoked as "sh" and the current value of
-# the _XPG environment variable is not equal to 1 (one), the special
-# positional parameter $0, within a function call, is the name of the
-# function.
-progpath="$0"
+## ------------------------- ##
+## Locate command utilities. ##
+## ------------------------- ##
+
+
+# func_executable_p FILE
+# ----------------------
+# Check that FILE is an executable regular file.
+func_executable_p ()
+{
+ test -f "$1" && test -x "$1"
+}
+
+
+# func_path_progs PROGS_LIST CHECK_FUNC [PATH]
+# --------------------------------------------
+# Search for either a program that responds to --version with output
+# containing "GNU", or else returned by CHECK_FUNC otherwise, by
+# trying all the directories in PATH with each of the elements of
+# PROGS_LIST.
+#
+# CHECK_FUNC should accept the path to a candidate program, and
+# set $func_check_prog_result if it truncates its output less than
+# $_G_path_prog_max characters.
+func_path_progs ()
+{
+ _G_progs_list=$1
+ _G_check_func=$2
+ _G_PATH=${3-"$PATH"}
+
+ _G_path_prog_max=0
+ _G_path_prog_found=false
+ _G_save_IFS=$IFS; IFS=${PATH_SEPARATOR-:}
+ for _G_dir in $_G_PATH; do
+ IFS=$_G_save_IFS
+ test -z "$_G_dir" && _G_dir=.
+ for _G_prog_name in $_G_progs_list; do
+ for _exeext in '' .EXE; do
+ _G_path_prog=$_G_dir/$_G_prog_name$_exeext
+ func_executable_p "$_G_path_prog" || continue
+ case `"$_G_path_prog" --version 2>&1` in
+ *GNU*) func_path_progs_result=$_G_path_prog _G_path_prog_found=: ;;
+ *) $_G_check_func $_G_path_prog
+ func_path_progs_result=$func_check_prog_result
+ ;;
+ esac
+ $_G_path_prog_found && break 3
+ done
+ done
+ done
+ IFS=$_G_save_IFS
+ test -z "$func_path_progs_result" && {
+ echo "no acceptable sed could be found in \$PATH" >&2
+ exit 1
+ }
+}
+
+
+# We want to be able to use the functions in this file before configure
+# has figured out where the best binaries are kept, which means we have
+# to search for them ourselves - except when the results are already set
+# where we skip the searches.
+
+# Unless the user overrides by setting SED, search the path for either GNU
+# sed, or the sed that truncates its output the least.
+test -z "$SED" && {
+ _G_sed_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+ for _G_i in 1 2 3 4 5 6 7; do
+ _G_sed_script=$_G_sed_script$nl$_G_sed_script
+ done
+ echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed
+ _G_sed_script=
+
+ func_check_prog_sed ()
+ {
+ _G_path_prog=$1
+
+ _G_count=0
+ printf 0123456789 >conftest.in
+ while :
+ do
+ cat conftest.in conftest.in >conftest.tmp
+ mv conftest.tmp conftest.in
+ cp conftest.in conftest.nl
+ echo '' >> conftest.nl
+ "$_G_path_prog" -f conftest.sed <conftest.nl >conftest.out 2>/dev/null || break
+ diff conftest.out conftest.nl >/dev/null 2>&1 || break
+ _G_count=`expr $_G_count + 1`
+ if test "$_G_count" -gt "$_G_path_prog_max"; then
+ # Best one so far, save it but keep looking for a better one
+ func_check_prog_result=$_G_path_prog
+ _G_path_prog_max=$_G_count
+ fi
+ # 10*(2^10) chars as input seems more than enough
+ test 10 -lt "$_G_count" && break
+ done
+ rm -f conftest.in conftest.tmp conftest.nl conftest.out
+ }
+
+ func_path_progs "sed gsed" func_check_prog_sed $PATH:/usr/xpg4/bin
+ rm -f conftest.sed
+ SED=$func_path_progs_result
+}
+
+
+# Unless the user overrides by setting GREP, search the path for either GNU
+# grep, or the grep that truncates its output the least.
+test -z "$GREP" && {
+ func_check_prog_grep ()
+ {
+ _G_path_prog=$1
+
+ _G_count=0
+ _G_path_prog_max=0
+ printf 0123456789 >conftest.in
+ while :
+ do
+ cat conftest.in conftest.in >conftest.tmp
+ mv conftest.tmp conftest.in
+ cp conftest.in conftest.nl
+ echo 'GREP' >> conftest.nl
+ "$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' <conftest.nl >conftest.out 2>/dev/null || break
+ diff conftest.out conftest.nl >/dev/null 2>&1 || break
+ _G_count=`expr $_G_count + 1`
+ if test "$_G_count" -gt "$_G_path_prog_max"; then
+ # Best one so far, save it but keep looking for a better one
+ func_check_prog_result=$_G_path_prog
+ _G_path_prog_max=$_G_count
+ fi
+ # 10*(2^10) chars as input seems more than enough
+ test 10 -lt "$_G_count" && break
+ done
+ rm -f conftest.in conftest.tmp conftest.nl conftest.out
+ }
+
+ func_path_progs "grep ggrep" func_check_prog_grep $PATH:/usr/xpg4/bin
+ GREP=$func_path_progs_result
+}
+
+
+## ------------------------------- ##
+## User overridable command paths. ##
+## ------------------------------- ##
+
+# All uppercase variable names are used for environment variables. These
+# variables can be overridden by the user before calling a script that
+# uses them if a suitable command of that name is not already available
+# in the command search PATH.
: ${CP="cp -f"}
-test "${ECHO+set}" = set || ECHO=${as_echo-'printf %s\n'}
+: ${ECHO="printf %s\n"}
+: ${EGREP="$GREP -E"}
+: ${FGREP="$GREP -F"}
+: ${LN_S="ln -s"}
: ${MAKE="make"}
: ${MKDIR="mkdir"}
: ${MV="mv -f"}
: ${RM="rm -f"}
: ${SHELL="${CONFIG_SHELL-/bin/sh}"}
-: ${Xsed="$SED -e 1s/^X//"}
-
-# Global variables:
-EXIT_SUCCESS=0
-EXIT_FAILURE=1
-EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing.
-EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake.
-
-exit_status=$EXIT_SUCCESS
-
-# Make sure IFS has a sensible default
-lt_nl='
-'
-IFS=" $lt_nl"
-dirname="s,/[^/]*$,,"
-basename="s,^.*/,,"
-# func_dirname file append nondir_replacement
-# Compute the dirname of FILE. If nonempty, add APPEND to the result,
-# otherwise set result to NONDIR_REPLACEMENT.
-func_dirname ()
-{
- func_dirname_result=`$ECHO "${1}" | $SED "$dirname"`
- if test "X$func_dirname_result" = "X${1}"; then
- func_dirname_result="${3}"
- else
- func_dirname_result="$func_dirname_result${2}"
- fi
-} # func_dirname may be replaced by extended shell implementation
+## -------------------- ##
+## Useful sed snippets. ##
+## -------------------- ##
+sed_dirname='s|/[^/]*$||'
+sed_basename='s|^.*/||'
-# func_basename file
-func_basename ()
-{
- func_basename_result=`$ECHO "${1}" | $SED "$basename"`
-} # func_basename may be replaced by extended shell implementation
+# Sed substitution that helps us do robust quoting. It backslashifies
+# metacharacters that are still active within double-quoted strings.
+sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
+# Same as above, but do not quote variable references.
+sed_double_quote_subst='s/\(["`\\]\)/\\\1/g'
-# func_dirname_and_basename file append nondir_replacement
-# perform func_basename and func_dirname in a single function
-# call:
-# dirname: Compute the dirname of FILE. If nonempty,
-# add APPEND to the result, otherwise set result
-# to NONDIR_REPLACEMENT.
-# value returned in "$func_dirname_result"
-# basename: Compute filename of FILE.
-# value retuned in "$func_basename_result"
-# Implementation must be kept synchronized with func_dirname
-# and func_basename. For efficiency, we do not delegate to
-# those functions but instead duplicate the functionality here.
-func_dirname_and_basename ()
-{
- # Extract subdirectory from the argument.
- func_dirname_result=`$ECHO "${1}" | $SED -e "$dirname"`
- if test "X$func_dirname_result" = "X${1}"; then
- func_dirname_result="${3}"
- else
- func_dirname_result="$func_dirname_result${2}"
- fi
- func_basename_result=`$ECHO "${1}" | $SED -e "$basename"`
-} # func_dirname_and_basename may be replaced by extended shell implementation
+# Sed substitution that turns a string into a regex matching for the
+# string literally.
+sed_make_literal_regex='s|[].[^$\\*\/]|\\&|g'
+# Sed substitution that converts a w32 file name or path
+# that contains forward slashes, into one that contains
+# (escaped) backslashes. A very naive implementation.
+sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
+
+# Re-'\' parameter expansions in output of sed_double_quote_subst that
+# were '\'-ed in input to the same. If an odd number of '\' preceded a
+# '$' in input to sed_double_quote_subst, that '$' was protected from
+# expansion. Since each input '\' is now two '\'s, look for any number
+# of runs of four '\'s followed by two '\'s and then a '$'. '\' that '$'.
+_G_bs='\\'
+_G_bs2='\\\\'
+_G_bs4='\\\\\\\\'
+_G_dollar='\$'
+sed_double_backslash="\
+ s/$_G_bs4/&\\
+/g
+ s/^$_G_bs2$_G_dollar/$_G_bs&/
+ s/\\([^$_G_bs]\\)$_G_bs2$_G_dollar/\\1$_G_bs2$_G_bs$_G_dollar/g
+ s/\n//g"
-# func_stripname prefix suffix name
-# strip PREFIX and SUFFIX off of NAME.
-# PREFIX and SUFFIX must not contain globbing or regex special
-# characters, hashes, percent signs, but SUFFIX may contain a leading
-# dot (in which case that matches only a dot).
-# func_strip_suffix prefix name
-func_stripname ()
-{
- case ${2} in
- .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;;
- *) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;;
- esac
-} # func_stripname may be replaced by extended shell implementation
+## ----------------- ##
+## Global variables. ##
+## ----------------- ##
-# These SED scripts presuppose an absolute path with a trailing slash.
-pathcar='s,^/\([^/]*\).*$,\1,'
-pathcdr='s,^/[^/]*,,'
-removedotparts=':dotsl
- s@/\./@/@g
- t dotsl
- s,/\.$,/,'
-collapseslashes='s@/\{1,\}@/@g'
-finalslash='s,/*$,/,'
+# Except for the global variables explicitly listed below, the following
+# functions in the '^func_' namespace, and the '^require_' namespace
+# variables initialised in the 'Resource management' section, sourcing
+# this file will not pollute your global namespace with anything
+# else. There's no portable way to scope variables in Bourne shell
+# though, so actually running these functions will sometimes place
+# results into a variable named after the function, and often use
+# temporary variables in the '^_G_' namespace. If you are careful to
+# avoid using those namespaces casually in your sourcing script, things
+# should continue to work as you expect. And, of course, you can freely
+# overwrite any of the functions or variables defined here before
+# calling anything to customize them.
-# func_normal_abspath PATH
-# Remove doubled-up and trailing slashes, "." path components,
-# and cancel out any ".." path components in PATH after making
-# it an absolute path.
-# value returned in "$func_normal_abspath_result"
-func_normal_abspath ()
-{
- # Start from root dir and reassemble the path.
- func_normal_abspath_result=
- func_normal_abspath_tpath=$1
- func_normal_abspath_altnamespace=
- case $func_normal_abspath_tpath in
- "")
- # Empty path, that just means $cwd.
- func_stripname '' '/' "`pwd`"
- func_normal_abspath_result=$func_stripname_result
- return
- ;;
- # The next three entries are used to spot a run of precisely
- # two leading slashes without using negated character classes;
- # we take advantage of case's first-match behaviour.
- ///*)
- # Unusual form of absolute path, do nothing.
- ;;
- //*)
- # Not necessarily an ordinary path; POSIX reserves leading '//'
- # and for example Cygwin uses it to access remote file shares
- # over CIFS/SMB, so we conserve a leading double slash if found.
- func_normal_abspath_altnamespace=/
- ;;
- /*)
- # Absolute path, do nothing.
- ;;
- *)
- # Relative path, prepend $cwd.
- func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath
- ;;
- esac
- # Cancel out all the simple stuff to save iterations. We also want
- # the path to end with a slash for ease of parsing, so make sure
- # there is one (and only one) here.
- func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
- -e "$removedotparts" -e "$collapseslashes" -e "$finalslash"`
- while :; do
- # Processed it all yet?
- if test "$func_normal_abspath_tpath" = / ; then
- # If we ascended to the root using ".." the result may be empty now.
- if test -z "$func_normal_abspath_result" ; then
- func_normal_abspath_result=/
- fi
- break
- fi
- func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \
- -e "$pathcar"`
- func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
- -e "$pathcdr"`
- # Figure out what to do with it
- case $func_normal_abspath_tcomponent in
- "")
- # Trailing empty path component, ignore it.
- ;;
- ..)
- # Parent dir; strip last assembled component from result.
- func_dirname "$func_normal_abspath_result"
- func_normal_abspath_result=$func_dirname_result
- ;;
- *)
- # Actual path component, append it.
- func_normal_abspath_result=$func_normal_abspath_result/$func_normal_abspath_tcomponent
- ;;
- esac
- done
- # Restore leading double-slash if one was found on entry.
- func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result
-}
+EXIT_SUCCESS=0
+EXIT_FAILURE=1
+EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing.
+EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake.
-# func_relative_path SRCDIR DSTDIR
-# generates a relative path from SRCDIR to DSTDIR, with a trailing
-# slash if non-empty, suitable for immediately appending a filename
-# without needing to append a separator.
-# value returned in "$func_relative_path_result"
-func_relative_path ()
-{
- func_relative_path_result=
- func_normal_abspath "$1"
- func_relative_path_tlibdir=$func_normal_abspath_result
- func_normal_abspath "$2"
- func_relative_path_tbindir=$func_normal_abspath_result
-
- # Ascend the tree starting from libdir
- while :; do
- # check if we have found a prefix of bindir
- case $func_relative_path_tbindir in
- $func_relative_path_tlibdir)
- # found an exact match
- func_relative_path_tcancelled=
- break
- ;;
- $func_relative_path_tlibdir*)
- # found a matching prefix
- func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir"
- func_relative_path_tcancelled=$func_stripname_result
- if test -z "$func_relative_path_result"; then
- func_relative_path_result=.
- fi
- break
- ;;
- *)
- func_dirname $func_relative_path_tlibdir
- func_relative_path_tlibdir=${func_dirname_result}
- if test "x$func_relative_path_tlibdir" = x ; then
- # Have to descend all the way to the root!
- func_relative_path_result=../$func_relative_path_result
- func_relative_path_tcancelled=$func_relative_path_tbindir
- break
- fi
- func_relative_path_result=../$func_relative_path_result
- ;;
- esac
- done
+# Allow overriding, eg assuming that you follow the convention of
+# putting '$debug_cmd' at the start of all your functions, you can get
+# bash to show function call trace with:
+#
+# debug_cmd='eval echo "${FUNCNAME[0]} $*" >&2' bash your-script-name
+debug_cmd=${debug_cmd-":"}
+exit_cmd=:
- # Now calculate path; take care to avoid doubling-up slashes.
- func_stripname '' '/' "$func_relative_path_result"
- func_relative_path_result=$func_stripname_result
- func_stripname '/' '/' "$func_relative_path_tcancelled"
- if test "x$func_stripname_result" != x ; then
- func_relative_path_result=${func_relative_path_result}/${func_stripname_result}
- fi
+# By convention, finish your script with:
+#
+# exit $exit_status
+#
+# so that you can set exit_status to non-zero if you want to indicate
+# something went wrong during execution without actually bailing out at
+# the point of failure.
+exit_status=$EXIT_SUCCESS
- # Normalisation. If bindir is libdir, return empty string,
- # else relative path ending with a slash; either way, target
- # file name can be directly appended.
- if test ! -z "$func_relative_path_result"; then
- func_stripname './' '' "$func_relative_path_result/"
- func_relative_path_result=$func_stripname_result
- fi
-}
+# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
+# is ksh but when the shell is invoked as "sh" and the current value of
+# the _XPG environment variable is not equal to 1 (one), the special
+# positional parameter $0, within a function call, is the name of the
+# function.
+progpath=$0
-# The name of this program:
-func_dirname_and_basename "$progpath"
-progname=$func_basename_result
+# The name of this program.
+progname=`$ECHO "$progpath" |$SED "$sed_basename"`
-# Make sure we have an absolute path for reexecution:
+# Make sure we have an absolute progpath for reexecution:
case $progpath in
[\\/]*|[A-Za-z]:\\*) ;;
*[\\/]*)
- progdir=$func_dirname_result
+ progdir=`$ECHO "$progpath" |$SED "$sed_dirname"`
progdir=`cd "$progdir" && pwd`
- progpath="$progdir/$progname"
+ progpath=$progdir/$progname
;;
*)
- save_IFS="$IFS"
+ _G_IFS=$IFS
IFS=${PATH_SEPARATOR-:}
for progdir in $PATH; do
- IFS="$save_IFS"
+ IFS=$_G_IFS
test -x "$progdir/$progname" && break
done
- IFS="$save_IFS"
+ IFS=$_G_IFS
test -n "$progdir" || progdir=`pwd`
- progpath="$progdir/$progname"
+ progpath=$progdir/$progname
;;
esac
-# Sed substitution that helps us do robust quoting. It backslashifies
-# metacharacters that are still active within double-quoted strings.
-Xsed="${SED}"' -e 1s/^X//'
-sed_quote_subst='s/\([`"$\\]\)/\\\1/g'
-
-# Same as above, but do not quote variable references.
-double_quote_subst='s/\(["`\\]\)/\\\1/g'
-# Sed substitution that turns a string into a regex matching for the
-# string literally.
-sed_make_literal_regex='s,[].[^$\\*\/],\\&,g'
+## ----------------- ##
+## Standard options. ##
+## ----------------- ##
-# Sed substitution that converts a w32 file name or path
-# which contains forward slashes, into one that contains
-# (escaped) backslashes. A very naive implementation.
-lt_sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
-
-# Re-`\' parameter expansions in output of double_quote_subst that were
-# `\'-ed in input to the same. If an odd number of `\' preceded a '$'
-# in input to double_quote_subst, that '$' was protected from expansion.
-# Since each input `\' is now two `\'s, look for any number of runs of
-# four `\'s followed by two `\'s and then a '$'. `\' that '$'.
-bs='\\'
-bs2='\\\\'
-bs4='\\\\\\\\'
-dollar='\$'
-sed_double_backslash="\
- s/$bs4/&\\
-/g
- s/^$bs2$dollar/$bs&/
- s/\\([^$bs]\\)$bs2$dollar/\\1$bs2$bs$dollar/g
- s/\n//g"
+# The following options affect the operation of the functions defined
+# below, and should be set appropriately depending on run-time para-
+# meters passed on the command line.
-# Standard options:
opt_dry_run=false
-opt_help=false
opt_quiet=false
opt_verbose=false
-opt_warning=:
-# func_echo arg...
-# Echo program name prefixed message, along with the current mode
-# name if it has been set yet.
-func_echo ()
-{
- $ECHO "$progname: ${opt_mode+$opt_mode: }$*"
-}
+# Categories 'all' and 'none' are always available. Append any others
+# you will pass as the first argument to func_warning from your own
+# code.
+warning_categories=
-# func_verbose arg...
-# Echo program name prefixed message in verbose mode only.
-func_verbose ()
-{
- $opt_verbose && func_echo ${1+"$@"}
+# By default, display warnings according to 'opt_warning_types'. Set
+# 'warning_func' to ':' to elide all warnings, or func_fatal_error to
+# treat the next displayed warning as a fatal error.
+warning_func=func_warn_and_continue
- # A bug in bash halts the script if the last line of a function
- # fails when set -e is in force, so we need another command to
- # work around that:
- :
-}
+# Set to 'all' to display all warnings, 'none' to suppress all
+# warnings, or a space delimited list of some subset of
+# 'warning_categories' to display only the listed warnings.
+opt_warning_types=all
-# func_echo_all arg...
-# Invoke $ECHO with all args, space-separated.
-func_echo_all ()
-{
- $ECHO "$*"
-}
-# func_error arg...
-# Echo program name prefixed message to standard error.
-func_error ()
-{
- $ECHO "$progname: ${opt_mode+$opt_mode: }"${1+"$@"} 1>&2
-}
+## -------------------- ##
+## Resource management. ##
+## -------------------- ##
-# func_warning arg...
-# Echo program name prefixed warning message to standard error.
-func_warning ()
-{
- $opt_warning && $ECHO "$progname: ${opt_mode+$opt_mode: }warning: "${1+"$@"} 1>&2
+# This section contains definitions for functions that each ensure a
+# particular resource (a file, or a non-empty configuration variable for
+# example) is available, and if appropriate to extract default values
+# from pertinent package files. Call them using their associated
+# 'require_*' variable to ensure that they are executed, at most, once.
+#
+# It's entirely deliberate that calling these functions can set
+# variables that don't obey the namespace limitations obeyed by the rest
+# of this file, in order that that they be as useful as possible to
+# callers.
- # bash bug again:
- :
-}
-# func_fatal_error arg...
-# Echo program name prefixed message to standard error, and exit.
-func_fatal_error ()
+# require_term_colors
+# -------------------
+# Allow display of bold text on terminals that support it.
+require_term_colors=func_require_term_colors
+func_require_term_colors ()
{
- func_error ${1+"$@"}
- exit $EXIT_FAILURE
-}
+ $debug_cmd
+
+ test -t 1 && {
+ # COLORTERM and USE_ANSI_COLORS environment variables take
+ # precedence, because most terminfo databases neglect to describe
+ # whether color sequences are supported.
+ test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"}
+
+ if test 1 = "$USE_ANSI_COLORS"; then
+ # Standard ANSI escape sequences
+ tc_reset='\e[0m'
+ tc_bold='\e[1m'; tc_standout='\e[7m'
+ tc_red='\e[31m'; tc_green='\e[32m'
+ tc_blue='\e[34m'; tc_cyan='\e[36m'
+ else
+ # Otherwise trust the terminfo database after all.
+ test -n "`tput sgr0 2>/dev/null`" && {
+ tc_reset=`tput sgr0`
+ test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold`
+ tc_standout=$tc_bold
+ test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso`
+ test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1`
+ test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2`
+ test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4`
+ test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5`
+ }
+ fi
+ }
-# func_fatal_help arg...
-# Echo program name prefixed message to standard error, followed by
-# a help hint, and exit.
-func_fatal_help ()
-{
- func_error ${1+"$@"}
- func_fatal_error "$help"
+ require_term_colors=:
}
-help="Try \`$progname --help' for more information." ## default
-# func_grep expression filename
+## ----------------- ##
+## Function library. ##
+## ----------------- ##
+
+# This section contains a variety of useful functions to call in your
+# scripts. Take note of the portable wrappers for features provided by
+# some modern shells, which will fall back to slower equivalents on
+# less featureful shells.
+
+
+# func_append VAR VALUE
+# ---------------------
+# Append VALUE onto the existing contents of VAR.
+
+ # We should try to minimise forks, especially on Windows where they are
+ # unreasonably slow, so skip the feature probes when bash or zsh are
+ # being used:
+ if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then
+ : ${_G_HAVE_ARITH_OP="yes"}
+ : ${_G_HAVE_XSI_OPS="yes"}
+ # The += operator was introduced in bash 3.1
+ case $BASH_VERSION in
+ [12].* | 3.0 | 3.0*) ;;
+ *)
+ : ${_G_HAVE_PLUSEQ_OP="yes"}
+ ;;
+ esac
+ fi
+
+ # _G_HAVE_PLUSEQ_OP
+ # Can be empty, in which case the shell is probed, "yes" if += is
+ # useable or anything else if it does not work.
+ test -z "$_G_HAVE_PLUSEQ_OP" \
+ && (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \
+ && _G_HAVE_PLUSEQ_OP=yes
+
+if test yes = "$_G_HAVE_PLUSEQ_OP"
+then
+ # This is an XSI compatible shell, allowing a faster implementation...
+ eval 'func_append ()
+ {
+ $debug_cmd
+
+ eval "$1+=\$2"
+ }'
+else
+ # ...otherwise fall back to using expr, which is often a shell builtin.
+ func_append ()
+ {
+ $debug_cmd
+
+ eval "$1=\$$1\$2"
+ }
+fi
+
+
+# func_append_quoted VAR VALUE
+# ----------------------------
+# Quote VALUE and append to the end of shell variable VAR, separated
+# by a space.
+if test yes = "$_G_HAVE_PLUSEQ_OP"; then
+ eval 'func_append_quoted ()
+ {
+ $debug_cmd
+
+ func_quote_for_eval "$2"
+ eval "$1+=\\ \$func_quote_for_eval_result"
+ }'
+else
+ func_append_quoted ()
+ {
+ $debug_cmd
+
+ func_quote_for_eval "$2"
+ eval "$1=\$$1\\ \$func_quote_for_eval_result"
+ }
+fi
+
+
+# func_append_uniq VAR VALUE
+# --------------------------
+# Append unique VALUE onto the existing contents of VAR, assuming
+# entries are delimited by the first character of VALUE. For example:
+#
+# func_append_uniq options " --another-option option-argument"
+#
+# will only append to $options if " --another-option option-argument "
+# is not already present somewhere in $options already (note spaces at
+# each end implied by leading space in second argument).
+func_append_uniq ()
+{
+ $debug_cmd
+
+ eval _G_current_value='`$ECHO $'$1'`'
+ _G_delim=`expr "$2" : '\(.\)'`
+
+ case $_G_delim$_G_current_value$_G_delim in
+ *"$2$_G_delim"*) ;;
+ *) func_append "$@" ;;
+ esac
+}
+
+
+# func_arith TERM...
+# ------------------
+# Set func_arith_result to the result of evaluating TERMs.
+ test -z "$_G_HAVE_ARITH_OP" \
+ && (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \
+ && _G_HAVE_ARITH_OP=yes
+
+if test yes = "$_G_HAVE_ARITH_OP"; then
+ eval 'func_arith ()
+ {
+ $debug_cmd
+
+ func_arith_result=$(( $* ))
+ }'
+else
+ func_arith ()
+ {
+ $debug_cmd
+
+ func_arith_result=`expr "$@"`
+ }
+fi
+
+
+# func_basename FILE
+# ------------------
+# Set func_basename_result to FILE with everything up to and including
+# the last / stripped.
+if test yes = "$_G_HAVE_XSI_OPS"; then
+ # If this shell supports suffix pattern removal, then use it to avoid
+ # forking. Hide the definitions single quotes in case the shell chokes
+ # on unsupported syntax...
+ _b='func_basename_result=${1##*/}'
+ _d='case $1 in
+ */*) func_dirname_result=${1%/*}$2 ;;
+ * ) func_dirname_result=$3 ;;
+ esac'
+
+else
+ # ...otherwise fall back to using sed.
+ _b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`'
+ _d='func_dirname_result=`$ECHO "$1" |$SED "$sed_dirname"`
+ if test "X$func_dirname_result" = "X$1"; then
+ func_dirname_result=$3
+ else
+ func_append func_dirname_result "$2"
+ fi'
+fi
+
+eval 'func_basename ()
+{
+ $debug_cmd
+
+ '"$_b"'
+}'
+
+
+# func_dirname FILE APPEND NONDIR_REPLACEMENT
+# -------------------------------------------
+# Compute the dirname of FILE. If nonempty, add APPEND to the result,
+# otherwise set result to NONDIR_REPLACEMENT.
+eval 'func_dirname ()
+{
+ $debug_cmd
+
+ '"$_d"'
+}'
+
+
+# func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT
+# --------------------------------------------------------
+# Perform func_basename and func_dirname in a single function
+# call:
+# dirname: Compute the dirname of FILE. If nonempty,
+# add APPEND to the result, otherwise set result
+# to NONDIR_REPLACEMENT.
+# value returned in "$func_dirname_result"
+# basename: Compute filename of FILE.
+# value retuned in "$func_basename_result"
+# For efficiency, we do not delegate to the functions above but instead
+# duplicate the functionality here.
+eval 'func_dirname_and_basename ()
+{
+ $debug_cmd
+
+ '"$_b"'
+ '"$_d"'
+}'
+
+
+# func_echo ARG...
+# ----------------
+# Echo program name prefixed message.
+func_echo ()
+{
+ $debug_cmd
+
+ _G_message=$*
+
+ func_echo_IFS=$IFS
+ IFS=$nl
+ for _G_line in $_G_message; do
+ IFS=$func_echo_IFS
+ $ECHO "$progname: $_G_line"
+ done
+ IFS=$func_echo_IFS
+}
+
+
+# func_echo_all ARG...
+# --------------------
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+ $ECHO "$*"
+}
+
+
+# func_echo_infix_1 INFIX ARG...
+# ------------------------------
+# Echo program name, followed by INFIX on the first line, with any
+# additional lines not showing INFIX.
+func_echo_infix_1 ()
+{
+ $debug_cmd
+
+ $require_term_colors
+
+ _G_infix=$1; shift
+ _G_indent=$_G_infix
+ _G_prefix="$progname: $_G_infix: "
+ _G_message=$*
+
+ # Strip color escape sequences before counting printable length
+ for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan"
+ do
+ test -n "$_G_tc" && {
+ _G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"`
+ _G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"`
+ }
+ done
+ _G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`" " ## exclude from sc_prohibit_nested_quotes
+
+ func_echo_infix_1_IFS=$IFS
+ IFS=$nl
+ for _G_line in $_G_message; do
+ IFS=$func_echo_infix_1_IFS
+ $ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2
+ _G_prefix=$_G_indent
+ done
+ IFS=$func_echo_infix_1_IFS
+}
+
+
+# func_error ARG...
+# -----------------
+# Echo program name prefixed message to standard error.
+func_error ()
+{
+ $debug_cmd
+
+ $require_term_colors
+
+ func_echo_infix_1 " $tc_standout${tc_red}error$tc_reset" "$*" >&2
+}
+
+
+# func_fatal_error ARG...
+# -----------------------
+# Echo program name prefixed message to standard error, and exit.
+func_fatal_error ()
+{
+ $debug_cmd
+
+ func_error "$*"
+ exit $EXIT_FAILURE
+}
+
+
+# func_grep EXPRESSION FILENAME
+# -----------------------------
# Check whether EXPRESSION matches any line of FILENAME, without output.
func_grep ()
{
+ $debug_cmd
+
$GREP "$1" "$2" >/dev/null 2>&1
}
-# func_mkdir_p directory-path
+# func_len STRING
+# ---------------
+# Set func_len_result to the length of STRING. STRING may not
+# start with a hyphen.
+ test -z "$_G_HAVE_XSI_OPS" \
+ && (eval 'x=a/b/c;
+ test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
+ && _G_HAVE_XSI_OPS=yes
+
+if test yes = "$_G_HAVE_XSI_OPS"; then
+ eval 'func_len ()
+ {
+ $debug_cmd
+
+ func_len_result=${#1}
+ }'
+else
+ func_len ()
+ {
+ $debug_cmd
+
+ func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len`
+ }
+fi
+
+
+# func_mkdir_p DIRECTORY-PATH
+# ---------------------------
# Make sure the entire path to DIRECTORY-PATH is available.
func_mkdir_p ()
{
- my_directory_path="$1"
- my_dir_list=
+ $debug_cmd
- if test -n "$my_directory_path" && test "$opt_dry_run" != ":"; then
+ _G_directory_path=$1
+ _G_dir_list=
- # Protect directory names starting with `-'
- case $my_directory_path in
- -*) my_directory_path="./$my_directory_path" ;;
+ if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then
+
+ # Protect directory names starting with '-'
+ case $_G_directory_path in
+ -*) _G_directory_path=./$_G_directory_path ;;
esac
# While some portion of DIR does not yet exist...
- while test ! -d "$my_directory_path"; do
+ while test ! -d "$_G_directory_path"; do
# ...make a list in topmost first order. Use a colon delimited
# list incase some portion of path contains whitespace.
- my_dir_list="$my_directory_path:$my_dir_list"
+ _G_dir_list=$_G_directory_path:$_G_dir_list
# If the last portion added has no slash in it, the list is done
- case $my_directory_path in */*) ;; *) break ;; esac
+ case $_G_directory_path in */*) ;; *) break ;; esac
# ...otherwise throw away the child directory and loop
- my_directory_path=`$ECHO "$my_directory_path" | $SED -e "$dirname"`
+ _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"`
done
- my_dir_list=`$ECHO "$my_dir_list" | $SED 's,:*$,,'`
+ _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'`
- save_mkdir_p_IFS="$IFS"; IFS=':'
- for my_dir in $my_dir_list; do
- IFS="$save_mkdir_p_IFS"
- # mkdir can fail with a `File exist' error if two processes
+ func_mkdir_p_IFS=$IFS; IFS=:
+ for _G_dir in $_G_dir_list; do
+ IFS=$func_mkdir_p_IFS
+ # mkdir can fail with a 'File exist' error if two processes
# try to create one of the directories concurrently. Don't
# stop in that case!
- $MKDIR "$my_dir" 2>/dev/null || :
+ $MKDIR "$_G_dir" 2>/dev/null || :
done
- IFS="$save_mkdir_p_IFS"
+ IFS=$func_mkdir_p_IFS
# Bail out if we (or some other process) failed to create a directory.
- test -d "$my_directory_path" || \
- func_fatal_error "Failed to create \`$1'"
+ test -d "$_G_directory_path" || \
+ func_fatal_error "Failed to create '$1'"
fi
}
-# func_mktempdir [string]
+# func_mktempdir [BASENAME]
+# -------------------------
# Make a temporary directory that won't clash with other running
# libtool processes, and avoids race conditions if possible. If
-# given, STRING is the basename for that directory.
+# given, BASENAME is the basename for that directory.
func_mktempdir ()
{
- my_template="${TMPDIR-/tmp}/${1-$progname}"
+ $debug_cmd
+
+ _G_template=${TMPDIR-/tmp}/${1-$progname}
- if test "$opt_dry_run" = ":"; then
+ if test : = "$opt_dry_run"; then
# Return a directory name, but don't create it in dry-run mode
- my_tmpdir="${my_template}-$$"
+ _G_tmpdir=$_G_template-$$
else
# If mktemp works, use that first and foremost
- my_tmpdir=`mktemp -d "${my_template}-XXXXXXXX" 2>/dev/null`
+ _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null`
- if test ! -d "$my_tmpdir"; then
+ if test ! -d "$_G_tmpdir"; then
# Failing that, at least try and use $RANDOM to avoid a race
- my_tmpdir="${my_template}-${RANDOM-0}$$"
+ _G_tmpdir=$_G_template-${RANDOM-0}$$
- save_mktempdir_umask=`umask`
+ func_mktempdir_umask=`umask`
umask 0077
- $MKDIR "$my_tmpdir"
- umask $save_mktempdir_umask
+ $MKDIR "$_G_tmpdir"
+ umask $func_mktempdir_umask
fi
# If we're not in dry-run mode, bomb out on failure
- test -d "$my_tmpdir" || \
- func_fatal_error "cannot create temporary directory \`$my_tmpdir'"
+ test -d "$_G_tmpdir" || \
+ func_fatal_error "cannot create temporary directory '$_G_tmpdir'"
+ fi
+
+ $ECHO "$_G_tmpdir"
+}
+
+
+# func_normal_abspath PATH
+# ------------------------
+# Remove doubled-up and trailing slashes, "." path components,
+# and cancel out any ".." path components in PATH after making
+# it an absolute path.
+func_normal_abspath ()
+{
+ $debug_cmd
+
+ # These SED scripts presuppose an absolute path with a trailing slash.
+ _G_pathcar='s|^/\([^/]*\).*$|\1|'
+ _G_pathcdr='s|^/[^/]*||'
+ _G_removedotparts=':dotsl
+ s|/\./|/|g
+ t dotsl
+ s|/\.$|/|'
+ _G_collapseslashes='s|/\{1,\}|/|g'
+ _G_finalslash='s|/*$|/|'
+
+ # Start from root dir and reassemble the path.
+ func_normal_abspath_result=
+ func_normal_abspath_tpath=$1
+ func_normal_abspath_altnamespace=
+ case $func_normal_abspath_tpath in
+ "")
+ # Empty path, that just means $cwd.
+ func_stripname '' '/' "`pwd`"
+ func_normal_abspath_result=$func_stripname_result
+ return
+ ;;
+ # The next three entries are used to spot a run of precisely
+ # two leading slashes without using negated character classes;
+ # we take advantage of case's first-match behaviour.
+ ///*)
+ # Unusual form of absolute path, do nothing.
+ ;;
+ //*)
+ # Not necessarily an ordinary path; POSIX reserves leading '//'
+ # and for example Cygwin uses it to access remote file shares
+ # over CIFS/SMB, so we conserve a leading double slash if found.
+ func_normal_abspath_altnamespace=/
+ ;;
+ /*)
+ # Absolute path, do nothing.
+ ;;
+ *)
+ # Relative path, prepend $cwd.
+ func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath
+ ;;
+ esac
+
+ # Cancel out all the simple stuff to save iterations. We also want
+ # the path to end with a slash for ease of parsing, so make sure
+ # there is one (and only one) here.
+ func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+ -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"`
+ while :; do
+ # Processed it all yet?
+ if test / = "$func_normal_abspath_tpath"; then
+ # If we ascended to the root using ".." the result may be empty now.
+ if test -z "$func_normal_abspath_result"; then
+ func_normal_abspath_result=/
+ fi
+ break
+ fi
+ func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \
+ -e "$_G_pathcar"`
+ func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+ -e "$_G_pathcdr"`
+ # Figure out what to do with it
+ case $func_normal_abspath_tcomponent in
+ "")
+ # Trailing empty path component, ignore it.
+ ;;
+ ..)
+ # Parent dir; strip last assembled component from result.
+ func_dirname "$func_normal_abspath_result"
+ func_normal_abspath_result=$func_dirname_result
+ ;;
+ *)
+ # Actual path component, append it.
+ func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent"
+ ;;
+ esac
+ done
+ # Restore leading double-slash if one was found on entry.
+ func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result
+}
+
+
+# func_notquiet ARG...
+# --------------------
+# Echo program name prefixed message only when not in quiet mode.
+func_notquiet ()
+{
+ $debug_cmd
+
+ $opt_quiet || func_echo ${1+"$@"}
+
+ # A bug in bash halts the script if the last line of a function
+ # fails when set -e is in force, so we need another command to
+ # work around that:
+ :
+}
+
+
+# func_relative_path SRCDIR DSTDIR
+# --------------------------------
+# Set func_relative_path_result to the relative path from SRCDIR to DSTDIR.
+func_relative_path ()
+{
+ $debug_cmd
+
+ func_relative_path_result=
+ func_normal_abspath "$1"
+ func_relative_path_tlibdir=$func_normal_abspath_result
+ func_normal_abspath "$2"
+ func_relative_path_tbindir=$func_normal_abspath_result
+
+ # Ascend the tree starting from libdir
+ while :; do
+ # check if we have found a prefix of bindir
+ case $func_relative_path_tbindir in
+ $func_relative_path_tlibdir)
+ # found an exact match
+ func_relative_path_tcancelled=
+ break
+ ;;
+ $func_relative_path_tlibdir*)
+ # found a matching prefix
+ func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir"
+ func_relative_path_tcancelled=$func_stripname_result
+ if test -z "$func_relative_path_result"; then
+ func_relative_path_result=.
+ fi
+ break
+ ;;
+ *)
+ func_dirname $func_relative_path_tlibdir
+ func_relative_path_tlibdir=$func_dirname_result
+ if test -z "$func_relative_path_tlibdir"; then
+ # Have to descend all the way to the root!
+ func_relative_path_result=../$func_relative_path_result
+ func_relative_path_tcancelled=$func_relative_path_tbindir
+ break
+ fi
+ func_relative_path_result=../$func_relative_path_result
+ ;;
+ esac
+ done
+
+ # Now calculate path; take care to avoid doubling-up slashes.
+ func_stripname '' '/' "$func_relative_path_result"
+ func_relative_path_result=$func_stripname_result
+ func_stripname '/' '/' "$func_relative_path_tcancelled"
+ if test -n "$func_stripname_result"; then
+ func_append func_relative_path_result "/$func_stripname_result"
+ fi
+
+ # Normalisation. If bindir is libdir, return '.' else relative path.
+ if test -n "$func_relative_path_result"; then
+ func_stripname './' '' "$func_relative_path_result"
+ func_relative_path_result=$func_stripname_result
fi
- $ECHO "$my_tmpdir"
+ test -n "$func_relative_path_result" || func_relative_path_result=.
+
+ :
+}
+
+
+# func_quote_for_eval ARG...
+# --------------------------
+# Aesthetically quote ARGs to be evaled later.
+# This function returns two values:
+# i) func_quote_for_eval_result
+# double-quoted, suitable for a subsequent eval
+# ii) func_quote_for_eval_unquoted_result
+# has all characters that are still active within double
+# quotes backslashified.
+func_quote_for_eval ()
+{
+ $debug_cmd
+
+ func_quote_for_eval_unquoted_result=
+ func_quote_for_eval_result=
+ while test 0 -lt $#; do
+ case $1 in
+ *[\\\`\"\$]*)
+ _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;;
+ *)
+ _G_unquoted_arg=$1 ;;
+ esac
+ if test -n "$func_quote_for_eval_unquoted_result"; then
+ func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg"
+ else
+ func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg"
+ fi
+
+ case $_G_unquoted_arg in
+ # Double-quote args containing shell metacharacters to delay
+ # word splitting, command substitution and variable expansion
+ # for a subsequent eval.
+ # Many Bourne shells cannot handle close brackets correctly
+ # in scan sets, so we specify it separately.
+ *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
+ _G_quoted_arg=\"$_G_unquoted_arg\"
+ ;;
+ *)
+ _G_quoted_arg=$_G_unquoted_arg
+ ;;
+ esac
+
+ if test -n "$func_quote_for_eval_result"; then
+ func_append func_quote_for_eval_result " $_G_quoted_arg"
+ else
+ func_append func_quote_for_eval_result "$_G_quoted_arg"
+ fi
+ shift
+ done
+}
+
+
+# func_quote_for_expand ARG
+# -------------------------
+# Aesthetically quote ARG to be evaled later; same as above,
+# but do not quote variable references.
+func_quote_for_expand ()
+{
+ $debug_cmd
+
+ case $1 in
+ *[\\\`\"]*)
+ _G_arg=`$ECHO "$1" | $SED \
+ -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;;
+ *)
+ _G_arg=$1 ;;
+ esac
+
+ case $_G_arg in
+ # Double-quote args containing shell metacharacters to delay
+ # word splitting and command substitution for a subsequent eval.
+ # Many Bourne shells cannot handle close brackets correctly
+ # in scan sets, so we specify it separately.
+ *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
+ _G_arg=\"$_G_arg\"
+ ;;
+ esac
+
+ func_quote_for_expand_result=$_G_arg
+}
+
+
+# func_stripname PREFIX SUFFIX NAME
+# ---------------------------------
+# strip PREFIX and SUFFIX from NAME, and store in func_stripname_result.
+# PREFIX and SUFFIX must not contain globbing or regex special
+# characters, hashes, percent signs, but SUFFIX may contain a leading
+# dot (in which case that matches only a dot).
+if test yes = "$_G_HAVE_XSI_OPS"; then
+ eval 'func_stripname ()
+ {
+ $debug_cmd
+
+ # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
+ # positional parameters, so assign one to ordinary variable first.
+ func_stripname_result=$3
+ func_stripname_result=${func_stripname_result#"$1"}
+ func_stripname_result=${func_stripname_result%"$2"}
+ }'
+else
+ func_stripname ()
+ {
+ $debug_cmd
+
+ case $2 in
+ .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;;
+ *) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;;
+ esac
+ }
+fi
+
+
+# func_show_eval CMD [FAIL_EXP]
+# -----------------------------
+# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is
+# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it.
+func_show_eval ()
+{
+ $debug_cmd
+
+ _G_cmd=$1
+ _G_fail_exp=${2-':'}
+
+ func_quote_for_expand "$_G_cmd"
+ eval "func_notquiet $func_quote_for_expand_result"
+
+ $opt_dry_run || {
+ eval "$_G_cmd"
+ _G_status=$?
+ if test 0 -ne "$_G_status"; then
+ eval "(exit $_G_status); $_G_fail_exp"
+ fi
+ }
+}
+
+
+# func_show_eval_locale CMD [FAIL_EXP]
+# ------------------------------------
+# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is
+# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it. Use the saved locale for evaluation.
+func_show_eval_locale ()
+{
+ $debug_cmd
+
+ _G_cmd=$1
+ _G_fail_exp=${2-':'}
+
+ $opt_quiet || {
+ func_quote_for_expand "$_G_cmd"
+ eval "func_echo $func_quote_for_expand_result"
+ }
+
+ $opt_dry_run || {
+ eval "$_G_user_locale
+ $_G_cmd"
+ _G_status=$?
+ eval "$_G_safe_locale"
+ if test 0 -ne "$_G_status"; then
+ eval "(exit $_G_status); $_G_fail_exp"
+ fi
+ }
+}
+
+
+# func_tr_sh
+# ----------
+# Turn $1 into a string suitable for a shell variable name.
+# Result is stored in $func_tr_sh_result. All characters
+# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
+# if $1 begins with a digit, a '_' is prepended as well.
+func_tr_sh ()
+{
+ $debug_cmd
+
+ case $1 in
+ [0-9]* | *[!a-zA-Z0-9_]*)
+ func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'`
+ ;;
+ * )
+ func_tr_sh_result=$1
+ ;;
+ esac
+}
+
+
+# func_verbose ARG...
+# -------------------
+# Echo program name prefixed message in verbose mode only.
+func_verbose ()
+{
+ $debug_cmd
+
+ $opt_verbose && func_echo "$*"
+
+ :
+}
+
+
+# func_warn_and_continue ARG...
+# -----------------------------
+# Echo program name prefixed warning message to standard error.
+func_warn_and_continue ()
+{
+ $debug_cmd
+
+ $require_term_colors
+
+ func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2
+}
+
+
+# func_warning CATEGORY ARG...
+# ----------------------------
+# Echo program name prefixed warning message to standard error. Warning
+# messages can be filtered according to CATEGORY, where this function
+# elides messages where CATEGORY is not listed in the global variable
+# 'opt_warning_types'.
+func_warning ()
+{
+ $debug_cmd
+
+ # CATEGORY must be in the warning_categories list!
+ case " $warning_categories " in
+ *" $1 "*) ;;
+ *) func_internal_error "invalid warning category '$1'" ;;
+ esac
+
+ _G_category=$1
+ shift
+
+ case " $opt_warning_types " in
+ *" $_G_category "*) $warning_func ${1+"$@"} ;;
+ esac
+}
+
+
+# func_sort_ver VER1 VER2
+# -----------------------
+# 'sort -V' is not generally available.
+# Note this deviates from the version comparison in automake
+# in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a
+# but this should suffice as we won't be specifying old
+# version formats or redundant trailing .0 in bootstrap.conf.
+# If we did want full compatibility then we should probably
+# use m4_version_compare from autoconf.
+func_sort_ver ()
+{
+ $debug_cmd
+
+ printf '%s\n%s\n' "$1" "$2" \
+ | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n
+}
+
+# func_lt_ver PREV CURR
+# ---------------------
+# Return true if PREV and CURR are in the correct order according to
+# func_sort_ver, otherwise false. Use it like this:
+#
+# func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..."
+func_lt_ver ()
+{
+ $debug_cmd
+
+ test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q`
+}
+
+
+# Local variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
+# time-stamp-time-zone: "UTC"
+# End:
+#! /bin/sh
+
+# Set a version string for this script.
+scriptversion=2014-01-07.03; # UTC
+
+# A portable, pluggable option parser for Bourne shell.
+# Written by Gary V. Vaughan, 2010
+
+# Copyright (C) 2010-2015 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions. There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# Please report bugs or propose patches to gary@gnu.org.
+
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# This file is a library for parsing options in your shell scripts along
+# with assorted other useful supporting features that you can make use
+# of too.
+#
+# For the simplest scripts you might need only:
+#
+# #!/bin/sh
+# . relative/path/to/funclib.sh
+# . relative/path/to/options-parser
+# scriptversion=1.0
+# func_options ${1+"$@"}
+# eval set dummy "$func_options_result"; shift
+# ...rest of your script...
+#
+# In order for the '--version' option to work, you will need to have a
+# suitably formatted comment like the one at the top of this file
+# starting with '# Written by ' and ending with '# warranty; '.
+#
+# For '-h' and '--help' to work, you will also need a one line
+# description of your script's purpose in a comment directly above the
+# '# Written by ' line, like the one at the top of this file.
+#
+# The default options also support '--debug', which will turn on shell
+# execution tracing (see the comment above debug_cmd below for another
+# use), and '--verbose' and the func_verbose function to allow your script
+# to display verbose messages only when your user has specified
+# '--verbose'.
+#
+# After sourcing this file, you can plug processing for additional
+# options by amending the variables from the 'Configuration' section
+# below, and following the instructions in the 'Option parsing'
+# section further down.
+
+## -------------- ##
+## Configuration. ##
+## -------------- ##
+
+# You should override these variables in your script after sourcing this
+# file so that they reflect the customisations you have added to the
+# option parser.
+
+# The usage line for option parsing errors and the start of '-h' and
+# '--help' output messages. You can embed shell variables for delayed
+# expansion at the time the message is displayed, but you will need to
+# quote other shell meta-characters carefully to prevent them being
+# expanded when the contents are evaled.
+usage='$progpath [OPTION]...'
+
+# Short help message in response to '-h' and '--help'. Add to this or
+# override it after sourcing this library to reflect the full set of
+# options your script accepts.
+usage_message="\
+ --debug enable verbose shell tracing
+ -W, --warnings=CATEGORY
+ report the warnings falling in CATEGORY [all]
+ -v, --verbose verbosely report processing
+ --version print version information and exit
+ -h, --help print short or long help message and exit
+"
+
+# Additional text appended to 'usage_message' in response to '--help'.
+long_help_message="
+Warning categories include:
+ 'all' show all warnings
+ 'none' turn off all the warnings
+ 'error' warnings are treated as fatal errors"
+
+# Help message printed before fatal option parsing errors.
+fatal_help="Try '\$progname --help' for more information."
+
+
+
+## ------------------------- ##
+## Hook function management. ##
+## ------------------------- ##
+
+# This section contains functions for adding, removing, and running hooks
+# to the main code. A hook is just a named list of of function, that can
+# be run in order later on.
+
+# func_hookable FUNC_NAME
+# -----------------------
+# Declare that FUNC_NAME will run hooks added with
+# 'func_add_hook FUNC_NAME ...'.
+func_hookable ()
+{
+ $debug_cmd
+
+ func_append hookable_fns " $1"
+}
+
+
+# func_add_hook FUNC_NAME HOOK_FUNC
+# ---------------------------------
+# Request that FUNC_NAME call HOOK_FUNC before it returns. FUNC_NAME must
+# first have been declared "hookable" by a call to 'func_hookable'.
+func_add_hook ()
+{
+ $debug_cmd
+
+ case " $hookable_fns " in
+ *" $1 "*) ;;
+ *) func_fatal_error "'$1' does not accept hook functions." ;;
+ esac
+
+ eval func_append ${1}_hooks '" $2"'
+}
+
+
+# func_remove_hook FUNC_NAME HOOK_FUNC
+# ------------------------------------
+# Remove HOOK_FUNC from the list of functions called by FUNC_NAME.
+func_remove_hook ()
+{
+ $debug_cmd
+
+ eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`'
+}
+
+
+# func_run_hooks FUNC_NAME [ARG]...
+# ---------------------------------
+# Run all hook functions registered to FUNC_NAME.
+# It is assumed that the list of hook functions contains nothing more
+# than a whitespace-delimited list of legal shell function names, and
+# no effort is wasted trying to catch shell meta-characters or preserve
+# whitespace.
+func_run_hooks ()
+{
+ $debug_cmd
+
+ case " $hookable_fns " in
+ *" $1 "*) ;;
+ *) func_fatal_error "'$1' does not support hook funcions.n" ;;
+ esac
+
+ eval _G_hook_fns=\$$1_hooks; shift
+
+ for _G_hook in $_G_hook_fns; do
+ eval $_G_hook '"$@"'
+
+ # store returned options list back into positional
+ # parameters for next 'cmd' execution.
+ eval _G_hook_result=\$${_G_hook}_result
+ eval set dummy "$_G_hook_result"; shift
+ done
+
+ func_quote_for_eval ${1+"$@"}
+ func_run_hooks_result=$func_quote_for_eval_result
+}
+
+
+
+## --------------- ##
+## Option parsing. ##
+## --------------- ##
+
+# In order to add your own option parsing hooks, you must accept the
+# full positional parameter list in your hook function, remove any
+# options that you action, and then pass back the remaining unprocessed
+# options in '<hooked_function_name>_result', escaped suitably for
+# 'eval'. Like this:
+#
+# my_options_prep ()
+# {
+# $debug_cmd
+#
+# # Extend the existing usage message.
+# usage_message=$usage_message'
+# -s, --silent don'\''t print informational messages
+# '
+#
+# func_quote_for_eval ${1+"$@"}
+# my_options_prep_result=$func_quote_for_eval_result
+# }
+# func_add_hook func_options_prep my_options_prep
+#
+#
+# my_silent_option ()
+# {
+# $debug_cmd
+#
+# # Note that for efficiency, we parse as many options as we can
+# # recognise in a loop before passing the remainder back to the
+# # caller on the first unrecognised argument we encounter.
+# while test $# -gt 0; do
+# opt=$1; shift
+# case $opt in
+# --silent|-s) opt_silent=: ;;
+# # Separate non-argument short options:
+# -s*) func_split_short_opt "$_G_opt"
+# set dummy "$func_split_short_opt_name" \
+# "-$func_split_short_opt_arg" ${1+"$@"}
+# shift
+# ;;
+# *) set dummy "$_G_opt" "$*"; shift; break ;;
+# esac
+# done
+#
+# func_quote_for_eval ${1+"$@"}
+# my_silent_option_result=$func_quote_for_eval_result
+# }
+# func_add_hook func_parse_options my_silent_option
+#
+#
+# my_option_validation ()
+# {
+# $debug_cmd
+#
+# $opt_silent && $opt_verbose && func_fatal_help "\
+# '--silent' and '--verbose' options are mutually exclusive."
+#
+# func_quote_for_eval ${1+"$@"}
+# my_option_validation_result=$func_quote_for_eval_result
+# }
+# func_add_hook func_validate_options my_option_validation
+#
+# You'll alse need to manually amend $usage_message to reflect the extra
+# options you parse. It's preferable to append if you can, so that
+# multiple option parsing hooks can be added safely.
+
+
+# func_options [ARG]...
+# ---------------------
+# All the functions called inside func_options are hookable. See the
+# individual implementations for details.
+func_hookable func_options
+func_options ()
+{
+ $debug_cmd
+
+ func_options_prep ${1+"$@"}
+ eval func_parse_options \
+ ${func_options_prep_result+"$func_options_prep_result"}
+ eval func_validate_options \
+ ${func_parse_options_result+"$func_parse_options_result"}
+
+ eval func_run_hooks func_options \
+ ${func_validate_options_result+"$func_validate_options_result"}
+
+ # save modified positional parameters for caller
+ func_options_result=$func_run_hooks_result
}
-# func_quote_for_eval arg
-# Aesthetically quote ARG to be evaled later.
-# This function returns two values: FUNC_QUOTE_FOR_EVAL_RESULT
-# is double-quoted, suitable for a subsequent eval, whereas
-# FUNC_QUOTE_FOR_EVAL_UNQUOTED_RESULT has merely all characters
-# which are still active within double quotes backslashified.
-func_quote_for_eval ()
+# func_options_prep [ARG]...
+# --------------------------
+# All initialisations required before starting the option parse loop.
+# Note that when calling hook functions, we pass through the list of
+# positional parameters. If a hook function modifies that list, and
+# needs to propogate that back to rest of this script, then the complete
+# modified list must be put in 'func_run_hooks_result' before
+# returning.
+func_hookable func_options_prep
+func_options_prep ()
{
- case $1 in
- *[\\\`\"\$]*)
- func_quote_for_eval_unquoted_result=`$ECHO "$1" | $SED "$sed_quote_subst"` ;;
- *)
- func_quote_for_eval_unquoted_result="$1" ;;
- esac
+ $debug_cmd
- case $func_quote_for_eval_unquoted_result in
- # Double-quote args containing shell metacharacters to delay
- # word splitting, command substitution and and variable
- # expansion for a subsequent eval.
- # Many Bourne shells cannot handle close brackets correctly
- # in scan sets, so we specify it separately.
- *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
- func_quote_for_eval_result="\"$func_quote_for_eval_unquoted_result\""
- ;;
- *)
- func_quote_for_eval_result="$func_quote_for_eval_unquoted_result"
- esac
+ # Option defaults:
+ opt_verbose=false
+ opt_warning_types=
+
+ func_run_hooks func_options_prep ${1+"$@"}
+
+ # save modified positional parameters for caller
+ func_options_prep_result=$func_run_hooks_result
}
-# func_quote_for_expand arg
-# Aesthetically quote ARG to be evaled later; same as above,
-# but do not quote variable references.
-func_quote_for_expand ()
+# func_parse_options [ARG]...
+# ---------------------------
+# The main option parsing loop.
+func_hookable func_parse_options
+func_parse_options ()
{
- case $1 in
- *[\\\`\"]*)
- my_arg=`$ECHO "$1" | $SED \
- -e "$double_quote_subst" -e "$sed_double_backslash"` ;;
- *)
- my_arg="$1" ;;
- esac
+ $debug_cmd
- case $my_arg in
- # Double-quote args containing shell metacharacters to delay
- # word splitting and command substitution for a subsequent eval.
- # Many Bourne shells cannot handle close brackets correctly
- # in scan sets, so we specify it separately.
- *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
- my_arg="\"$my_arg\""
- ;;
- esac
+ func_parse_options_result=
- func_quote_for_expand_result="$my_arg"
-}
+ # this just eases exit handling
+ while test $# -gt 0; do
+ # Defer to hook functions for initial option parsing, so they
+ # get priority in the event of reusing an option name.
+ func_run_hooks func_parse_options ${1+"$@"}
+ # Adjust func_parse_options positional parameters to match
+ eval set dummy "$func_run_hooks_result"; shift
-# func_show_eval cmd [fail_exp]
-# Unless opt_silent is true, then output CMD. Then, if opt_dryrun is
-# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
-# is given, then evaluate it.
-func_show_eval ()
-{
- my_cmd="$1"
- my_fail_exp="${2-:}"
+ # Break out of the loop if we already parsed every option.
+ test $# -gt 0 || break
- ${opt_silent-false} || {
- func_quote_for_expand "$my_cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
+ _G_opt=$1
+ shift
+ case $_G_opt in
+ --debug|-x) debug_cmd='set -x'
+ func_echo "enabling shell trace mode"
+ $debug_cmd
+ ;;
+
+ --no-warnings|--no-warning|--no-warn)
+ set dummy --warnings none ${1+"$@"}
+ shift
+ ;;
- if ${opt_dry_run-false}; then :; else
- eval "$my_cmd"
- my_status=$?
- if test "$my_status" -eq 0; then :; else
- eval "(exit $my_status); $my_fail_exp"
- fi
- fi
+ --warnings|--warning|-W)
+ test $# = 0 && func_missing_arg $_G_opt && break
+ case " $warning_categories $1" in
+ *" $1 "*)
+ # trailing space prevents matching last $1 above
+ func_append_uniq opt_warning_types " $1"
+ ;;
+ *all)
+ opt_warning_types=$warning_categories
+ ;;
+ *none)
+ opt_warning_types=none
+ warning_func=:
+ ;;
+ *error)
+ opt_warning_types=$warning_categories
+ warning_func=func_fatal_error
+ ;;
+ *)
+ func_fatal_error \
+ "unsupported warning category: '$1'"
+ ;;
+ esac
+ shift
+ ;;
+
+ --verbose|-v) opt_verbose=: ;;
+ --version) func_version ;;
+ -\?|-h) func_usage ;;
+ --help) func_help ;;
+
+ # Separate optargs to long options (plugins may need this):
+ --*=*) func_split_equals "$_G_opt"
+ set dummy "$func_split_equals_lhs" \
+ "$func_split_equals_rhs" ${1+"$@"}
+ shift
+ ;;
+
+ # Separate optargs to short options:
+ -W*)
+ func_split_short_opt "$_G_opt"
+ set dummy "$func_split_short_opt_name" \
+ "$func_split_short_opt_arg" ${1+"$@"}
+ shift
+ ;;
+
+ # Separate non-argument short options:
+ -\?*|-h*|-v*|-x*)
+ func_split_short_opt "$_G_opt"
+ set dummy "$func_split_short_opt_name" \
+ "-$func_split_short_opt_arg" ${1+"$@"}
+ shift
+ ;;
+
+ --) break ;;
+ -*) func_fatal_help "unrecognised option: '$_G_opt'" ;;
+ *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;;
+ esac
+ done
+
+ # save modified positional parameters for caller
+ func_quote_for_eval ${1+"$@"}
+ func_parse_options_result=$func_quote_for_eval_result
}
-# func_show_eval_locale cmd [fail_exp]
-# Unless opt_silent is true, then output CMD. Then, if opt_dryrun is
-# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
-# is given, then evaluate it. Use the saved locale for evaluation.
-func_show_eval_locale ()
+# func_validate_options [ARG]...
+# ------------------------------
+# Perform any sanity checks on option settings and/or unconsumed
+# arguments.
+func_hookable func_validate_options
+func_validate_options ()
{
- my_cmd="$1"
- my_fail_exp="${2-:}"
+ $debug_cmd
- ${opt_silent-false} || {
- func_quote_for_expand "$my_cmd"
- eval "func_echo $func_quote_for_expand_result"
- }
+ # Display all warnings if -W was not given.
+ test -n "$opt_warning_types" || opt_warning_types=" $warning_categories"
- if ${opt_dry_run-false}; then :; else
- eval "$lt_user_locale
- $my_cmd"
- my_status=$?
- eval "$lt_safe_locale"
- if test "$my_status" -eq 0; then :; else
- eval "(exit $my_status); $my_fail_exp"
- fi
- fi
-}
+ func_run_hooks func_validate_options ${1+"$@"}
-# func_tr_sh
-# Turn $1 into a string suitable for a shell variable name.
-# Result is stored in $func_tr_sh_result. All characters
-# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
-# if $1 begins with a digit, a '_' is prepended as well.
-func_tr_sh ()
-{
- case $1 in
- [0-9]* | *[!a-zA-Z0-9_]*)
- func_tr_sh_result=`$ECHO "$1" | $SED 's/^\([0-9]\)/_\1/; s/[^a-zA-Z0-9_]/_/g'`
- ;;
- * )
- func_tr_sh_result=$1
- ;;
- esac
+ # Bail if the options were screwed!
+ $exit_cmd $EXIT_FAILURE
+
+ # save modified positional parameters for caller
+ func_validate_options_result=$func_run_hooks_result
}
-# func_version
-# Echo version message to standard output and exit.
-func_version ()
-{
- $opt_debug
- $SED -n '/(C)/!b go
- :more
- /\./!{
- N
- s/\n# / /
- b more
- }
- :go
- /^# '$PROGRAM' (GNU /,/# warranty; / {
- s/^# //
- s/^# *$//
- s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/
- p
- }' < "$progpath"
- exit $?
-}
+## ----------------- ##
+## Helper functions. ##
+## ----------------- ##
-# func_usage
-# Echo short help message to standard output and exit.
-func_usage ()
+# This section contains the helper functions used by the rest of the
+# hookable option parser framework in ascii-betical order.
+
+
+# func_fatal_help ARG...
+# ----------------------
+# Echo program name prefixed message to standard error, followed by
+# a help hint, and exit.
+func_fatal_help ()
{
- $opt_debug
+ $debug_cmd
- $SED -n '/^# Usage:/,/^# *.*--help/ {
- s/^# //
- s/^# *$//
- s/\$progname/'$progname'/
- p
- }' < "$progpath"
- echo
- $ECHO "run \`$progname --help | more' for full usage"
- exit $?
+ eval \$ECHO \""Usage: $usage"\"
+ eval \$ECHO \""$fatal_help"\"
+ func_error ${1+"$@"}
+ exit $EXIT_FAILURE
}
-# func_help [NOEXIT]
-# Echo long help message to standard output and exit,
-# unless 'noexit' is passed as argument.
+
+# func_help
+# ---------
+# Echo long help message to standard output and exit.
func_help ()
{
- $opt_debug
-
- $SED -n '/^# Usage:/,/# Report bugs to/ {
- :print
- s/^# //
- s/^# *$//
- s*\$progname*'$progname'*
- s*\$host*'"$host"'*
- s*\$SHELL*'"$SHELL"'*
- s*\$LTCC*'"$LTCC"'*
- s*\$LTCFLAGS*'"$LTCFLAGS"'*
- s*\$LD*'"$LD"'*
- s/\$with_gnu_ld/'"$with_gnu_ld"'/
- s/\$automake_version/'"`(${AUTOMAKE-automake} --version) 2>/dev/null |$SED 1q`"'/
- s/\$autoconf_version/'"`(${AUTOCONF-autoconf} --version) 2>/dev/null |$SED 1q`"'/
- p
- d
- }
- /^# .* home page:/b print
- /^# General help using/b print
- ' < "$progpath"
- ret=$?
- if test -z "$1"; then
- exit $ret
- fi
+ $debug_cmd
+
+ func_usage_message
+ $ECHO "$long_help_message"
+ exit 0
}
-# func_missing_arg argname
+
+# func_missing_arg ARGNAME
+# ------------------------
# Echo program name prefixed message to standard error and set global
# exit_cmd.
func_missing_arg ()
{
- $opt_debug
+ $debug_cmd
- func_error "missing argument for $1."
+ func_error "Missing argument for '$1'."
exit_cmd=exit
}
-# func_split_short_opt shortopt
+# func_split_equals STRING
+# ------------------------
+# Set func_split_equals_lhs and func_split_equals_rhs shell variables after
+# splitting STRING at the '=' sign.
+test -z "$_G_HAVE_XSI_OPS" \
+ && (eval 'x=a/b/c;
+ test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
+ && _G_HAVE_XSI_OPS=yes
+
+if test yes = "$_G_HAVE_XSI_OPS"
+then
+ # This is an XSI compatible shell, allowing a faster implementation...
+ eval 'func_split_equals ()
+ {
+ $debug_cmd
+
+ func_split_equals_lhs=${1%%=*}
+ func_split_equals_rhs=${1#*=}
+ test "x$func_split_equals_lhs" = "x$1" \
+ && func_split_equals_rhs=
+ }'
+else
+ # ...otherwise fall back to using expr, which is often a shell builtin.
+ func_split_equals ()
+ {
+ $debug_cmd
+
+ func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'`
+ func_split_equals_rhs=
+ test "x$func_split_equals_lhs" = "x$1" \
+ || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'`
+ }
+fi #func_split_equals
+
+
+# func_split_short_opt SHORTOPT
+# -----------------------------
# Set func_split_short_opt_name and func_split_short_opt_arg shell
# variables after splitting SHORTOPT after the 2nd character.
-func_split_short_opt ()
+if test yes = "$_G_HAVE_XSI_OPS"
+then
+ # This is an XSI compatible shell, allowing a faster implementation...
+ eval 'func_split_short_opt ()
+ {
+ $debug_cmd
+
+ func_split_short_opt_arg=${1#??}
+ func_split_short_opt_name=${1%"$func_split_short_opt_arg"}
+ }'
+else
+ # ...otherwise fall back to using expr, which is often a shell builtin.
+ func_split_short_opt ()
+ {
+ $debug_cmd
+
+ func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'`
+ func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'`
+ }
+fi #func_split_short_opt
+
+
+# func_usage
+# ----------
+# Echo short help message to standard output and exit.
+func_usage ()
{
- my_sed_short_opt='1s/^\(..\).*$/\1/;q'
- my_sed_short_rest='1s/^..\(.*\)$/\1/;q'
+ $debug_cmd
- func_split_short_opt_name=`$ECHO "$1" | $SED "$my_sed_short_opt"`
- func_split_short_opt_arg=`$ECHO "$1" | $SED "$my_sed_short_rest"`
-} # func_split_short_opt may be replaced by extended shell implementation
+ func_usage_message
+ $ECHO "Run '$progname --help |${PAGER-more}' for full usage"
+ exit 0
+}
-# func_split_long_opt longopt
-# Set func_split_long_opt_name and func_split_long_opt_arg shell
-# variables after splitting LONGOPT at the `=' sign.
-func_split_long_opt ()
+# func_usage_message
+# ------------------
+# Echo short help message to standard output.
+func_usage_message ()
{
- my_sed_long_opt='1s/^\(--[^=]*\)=.*/\1/;q'
- my_sed_long_arg='1s/^--[^=]*=//'
+ $debug_cmd
- func_split_long_opt_name=`$ECHO "$1" | $SED "$my_sed_long_opt"`
- func_split_long_opt_arg=`$ECHO "$1" | $SED "$my_sed_long_arg"`
-} # func_split_long_opt may be replaced by extended shell implementation
+ eval \$ECHO \""Usage: $usage"\"
+ echo
+ $SED -n 's|^# ||
+ /^Written by/{
+ x;p;x
+ }
+ h
+ /^Written by/q' < "$progpath"
+ echo
+ eval \$ECHO \""$usage_message"\"
+}
-exit_cmd=:
+# func_version
+# ------------
+# Echo version message to standard output and exit.
+func_version ()
+{
+ $debug_cmd
+ printf '%s\n' "$progname $scriptversion"
+ $SED -n '
+ /(C)/!b go
+ :more
+ /\./!{
+ N
+ s|\n# | |
+ b more
+ }
+ :go
+ /^# Written by /,/# warranty; / {
+ s|^# ||
+ s|^# *$||
+ s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2|
+ p
+ }
+ /^# Written by / {
+ s|^# ||
+ p
+ }
+ /^warranty; /q' < "$progpath"
+ exit $?
+}
-magic="%%%MAGIC variable%%%"
-magic_exe="%%%MAGIC EXE variable%%%"
+# Local variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
+# time-stamp-time-zone: "UTC"
+# End:
-# Global variables.
-nonopt=
-preserve_args=
-lo2o="s/\\.lo\$/.${objext}/"
-o2lo="s/\\.${objext}\$/.lo/"
-extracted_archives=
-extracted_serial=0
+# Set a version string.
+scriptversion='(GNU libtool) 2.4.6'
-# If this variable is set in any of the actions, the command in it
-# will be execed at the end. This prevents here-documents from being
-# left over by shells.
-exec_cmd=
-# func_append var value
-# Append VALUE to the end of shell variable VAR.
-func_append ()
+# func_echo ARG...
+# ----------------
+# Libtool also displays the current mode in messages, so override
+# funclib.sh func_echo with this custom definition.
+func_echo ()
{
- eval "${1}=\$${1}\${2}"
-} # func_append may be replaced by extended shell implementation
+ $debug_cmd
-# func_append_quoted var value
-# Quote VALUE and append to the end of shell variable VAR, separated
-# by a space.
-func_append_quoted ()
-{
- func_quote_for_eval "${2}"
- eval "${1}=\$${1}\\ \$func_quote_for_eval_result"
-} # func_append_quoted may be replaced by extended shell implementation
+ _G_message=$*
+ func_echo_IFS=$IFS
+ IFS=$nl
+ for _G_line in $_G_message; do
+ IFS=$func_echo_IFS
+ $ECHO "$progname${opt_mode+: $opt_mode}: $_G_line"
+ done
+ IFS=$func_echo_IFS
+}
-# func_arith arithmetic-term...
-func_arith ()
+
+# func_warning ARG...
+# -------------------
+# Libtool warnings are not categorized, so override funclib.sh
+# func_warning with this simpler definition.
+func_warning ()
{
- func_arith_result=`expr "${@}"`
-} # func_arith may be replaced by extended shell implementation
+ $debug_cmd
+ $warning_func ${1+"$@"}
+}
-# func_len string
-# STRING may not start with a hyphen.
-func_len ()
-{
- func_len_result=`expr "${1}" : ".*" 2>/dev/null || echo $max_cmd_len`
-} # func_len may be replaced by extended shell implementation
+## ---------------- ##
+## Options parsing. ##
+## ---------------- ##
+
+# Hook in the functions to make sure our own options are parsed during
+# the option parsing loop.
+
+usage='$progpath [OPTION]... [MODE-ARG]...'
+
+# Short help message in response to '-h'.
+usage_message="Options:
+ --config show all configuration variables
+ --debug enable verbose shell tracing
+ -n, --dry-run display commands without modifying any files
+ --features display basic configuration information and exit
+ --mode=MODE use operation mode MODE
+ --no-warnings equivalent to '-Wnone'
+ --preserve-dup-deps don't remove duplicate dependency libraries
+ --quiet, --silent don't print informational messages
+ --tag=TAG use configuration variables from tag TAG
+ -v, --verbose print more informational messages than default
+ --version print version information
+ -W, --warnings=CATEGORY report the warnings falling in CATEGORY [all]
+ -h, --help, --help-all print short, long, or detailed help message
+"
-# func_lo2o object
-func_lo2o ()
+# Additional text appended to 'usage_message' in response to '--help'.
+func_help ()
{
- func_lo2o_result=`$ECHO "${1}" | $SED "$lo2o"`
-} # func_lo2o may be replaced by extended shell implementation
+ $debug_cmd
+
+ func_usage_message
+ $ECHO "$long_help_message
+
+MODE must be one of the following:
+
+ clean remove files from the build directory
+ compile compile a source file into a libtool object
+ execute automatically set library path, then run a program
+ finish complete the installation of libtool libraries
+ install install libraries or executables
+ link create a library or an executable
+ uninstall remove libraries from an installed directory
+
+MODE-ARGS vary depending on the MODE. When passed as first option,
+'--mode=MODE' may be abbreviated as 'MODE' or a unique abbreviation of that.
+Try '$progname --help --mode=MODE' for a more detailed description of MODE.
+
+When reporting a bug, please describe a test case to reproduce it and
+include the following information:
+
+ host-triplet: $host
+ shell: $SHELL
+ compiler: $LTCC
+ compiler flags: $LTCFLAGS
+ linker: $LD (gnu? $with_gnu_ld)
+ version: $progname (GNU libtool) 2.4.6
+ automake: `($AUTOMAKE --version) 2>/dev/null |$SED 1q`
+ autoconf: `($AUTOCONF --version) 2>/dev/null |$SED 1q`
+
+Report bugs to <bug-libtool@gnu.org>.
+GNU libtool home page: <http://www.gnu.org/software/libtool/>.
+General help using GNU software: <http://www.gnu.org/gethelp/>."
+ exit 0
+}
-# func_xform libobj-or-source
-func_xform ()
-{
- func_xform_result=`$ECHO "${1}" | $SED 's/\.[^.]*$/.lo/'`
-} # func_xform may be replaced by extended shell implementation
+# func_lo2o OBJECT-NAME
+# ---------------------
+# Transform OBJECT-NAME from a '.lo' suffix to the platform specific
+# object suffix.
+
+lo2o=s/\\.lo\$/.$objext/
+o2lo=s/\\.$objext\$/.lo/
+
+if test yes = "$_G_HAVE_XSI_OPS"; then
+ eval 'func_lo2o ()
+ {
+ case $1 in
+ *.lo) func_lo2o_result=${1%.lo}.$objext ;;
+ * ) func_lo2o_result=$1 ;;
+ esac
+ }'
+
+ # func_xform LIBOBJ-OR-SOURCE
+ # ---------------------------
+ # Transform LIBOBJ-OR-SOURCE from a '.o' or '.c' (or otherwise)
+ # suffix to a '.lo' libtool-object suffix.
+ eval 'func_xform ()
+ {
+ func_xform_result=${1%.*}.lo
+ }'
+else
+ # ...otherwise fall back to using sed.
+ func_lo2o ()
+ {
+ func_lo2o_result=`$ECHO "$1" | $SED "$lo2o"`
+ }
+
+ func_xform ()
+ {
+ func_xform_result=`$ECHO "$1" | $SED 's|\.[^.]*$|.lo|'`
+ }
+fi
-# func_fatal_configuration arg...
+# func_fatal_configuration ARG...
+# -------------------------------
# Echo program name prefixed message to standard error, followed by
# a configuration failure hint, and exit.
func_fatal_configuration ()
{
- func_error ${1+"$@"}
- func_error "See the $PACKAGE documentation for more information."
- func_fatal_error "Fatal configuration error."
+ func__fatal_error ${1+"$@"} \
+ "See the $PACKAGE documentation for more information." \
+ "Fatal configuration error."
}
# func_config
+# -----------
# Display the configuration for all the tags in this script.
func_config ()
{
exit $?
}
+
# func_features
+# -------------
# Display the features supported by this script.
func_features ()
{
echo "host: $host"
- if test "$build_libtool_libs" = yes; then
+ if test yes = "$build_libtool_libs"; then
echo "enable shared libraries"
else
echo "disable shared libraries"
fi
- if test "$build_old_libs" = yes; then
+ if test yes = "$build_old_libs"; then
echo "enable static libraries"
else
echo "disable static libraries"
exit $?
}
-# func_enable_tag tagname
+
+# func_enable_tag TAGNAME
+# -----------------------
# Verify that TAGNAME is valid, and either flag an error and exit, or
# enable the TAGNAME tag. We also add TAGNAME to the global $taglist
# variable here.
func_enable_tag ()
{
- # Global variable:
- tagname="$1"
+ # Global variable:
+ tagname=$1
- re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
- re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
- sed_extractcf="/$re_begincf/,/$re_endcf/p"
+ re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
+ re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
+ sed_extractcf=/$re_begincf/,/$re_endcf/p
- # Validate tagname.
- case $tagname in
- *[!-_A-Za-z0-9,/]*)
- func_fatal_error "invalid tag name: $tagname"
- ;;
- esac
+ # Validate tagname.
+ case $tagname in
+ *[!-_A-Za-z0-9,/]*)
+ func_fatal_error "invalid tag name: $tagname"
+ ;;
+ esac
- # Don't test for the "default" C tag, as we know it's
- # there but not specially marked.
- case $tagname in
- CC) ;;
+ # Don't test for the "default" C tag, as we know it's
+ # there but not specially marked.
+ case $tagname in
+ CC) ;;
*)
- if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
- taglist="$taglist $tagname"
-
- # Evaluate the configuration. Be careful to quote the path
- # and the sed script, to avoid splitting on whitespace, but
- # also don't use non-portable quotes within backquotes within
- # quotes we have to do it in 2 steps:
- extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
- eval "$extractedcf"
- else
- func_error "ignoring unknown tag $tagname"
- fi
- ;;
- esac
+ if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
+ taglist="$taglist $tagname"
+
+ # Evaluate the configuration. Be careful to quote the path
+ # and the sed script, to avoid splitting on whitespace, but
+ # also don't use non-portable quotes within backquotes within
+ # quotes we have to do it in 2 steps:
+ extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
+ eval "$extractedcf"
+ else
+ func_error "ignoring unknown tag $tagname"
+ fi
+ ;;
+ esac
}
+
# func_check_version_match
+# ------------------------
# Ensure that we are using m4 macros, and libtool script from the same
# release of libtool.
func_check_version_match ()
{
- if test "$package_revision" != "$macro_revision"; then
- if test "$VERSION" != "$macro_version"; then
- if test -z "$macro_version"; then
- cat >&2 <<_LT_EOF
+ if test "$package_revision" != "$macro_revision"; then
+ if test "$VERSION" != "$macro_version"; then
+ if test -z "$macro_version"; then
+ cat >&2 <<_LT_EOF
$progname: Version mismatch error. This is $PACKAGE $VERSION, but the
$progname: definition of this LT_INIT comes from an older release.
$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
$progname: and run autoconf again.
_LT_EOF
- else
- cat >&2 <<_LT_EOF
+ else
+ cat >&2 <<_LT_EOF
$progname: Version mismatch error. This is $PACKAGE $VERSION, but the
$progname: definition of this LT_INIT comes from $PACKAGE $macro_version.
$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
$progname: and run autoconf again.
_LT_EOF
- fi
- else
- cat >&2 <<_LT_EOF
+ fi
+ else
+ cat >&2 <<_LT_EOF
$progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision,
$progname: but the definition of this LT_INIT comes from revision $macro_revision.
$progname: You should recreate aclocal.m4 with macros from revision $package_revision
$progname: of $PACKAGE $VERSION and run autoconf again.
_LT_EOF
- fi
+ fi
- exit $EXIT_MISMATCH
- fi
+ exit $EXIT_MISMATCH
+ fi
}
-# Shorthand for --mode=foo, only valid as the first argument
-case $1 in
-clean|clea|cle|cl)
- shift; set dummy --mode clean ${1+"$@"}; shift
- ;;
-compile|compil|compi|comp|com|co|c)
- shift; set dummy --mode compile ${1+"$@"}; shift
- ;;
-execute|execut|execu|exec|exe|ex|e)
- shift; set dummy --mode execute ${1+"$@"}; shift
- ;;
-finish|finis|fini|fin|fi|f)
- shift; set dummy --mode finish ${1+"$@"}; shift
- ;;
-install|instal|insta|inst|ins|in|i)
- shift; set dummy --mode install ${1+"$@"}; shift
- ;;
-link|lin|li|l)
- shift; set dummy --mode link ${1+"$@"}; shift
- ;;
-uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
- shift; set dummy --mode uninstall ${1+"$@"}; shift
- ;;
-esac
+# libtool_options_prep [ARG]...
+# -----------------------------
+# Preparation for options parsed by libtool.
+libtool_options_prep ()
+{
+ $debug_mode
+ # Option defaults:
+ opt_config=false
+ opt_dlopen=
+ opt_dry_run=false
+ opt_help=false
+ opt_mode=
+ opt_preserve_dup_deps=false
+ opt_quiet=false
+ nonopt=
+ preserve_args=
-# Option defaults:
-opt_debug=:
-opt_dry_run=false
-opt_config=false
-opt_preserve_dup_deps=false
-opt_features=false
-opt_finish=false
-opt_help=false
-opt_help_all=false
-opt_silent=:
-opt_warning=:
-opt_verbose=:
-opt_silent=false
-opt_verbose=false
+ # Shorthand for --mode=foo, only valid as the first argument
+ case $1 in
+ clean|clea|cle|cl)
+ shift; set dummy --mode clean ${1+"$@"}; shift
+ ;;
+ compile|compil|compi|comp|com|co|c)
+ shift; set dummy --mode compile ${1+"$@"}; shift
+ ;;
+ execute|execut|execu|exec|exe|ex|e)
+ shift; set dummy --mode execute ${1+"$@"}; shift
+ ;;
+ finish|finis|fini|fin|fi|f)
+ shift; set dummy --mode finish ${1+"$@"}; shift
+ ;;
+ install|instal|insta|inst|ins|in|i)
+ shift; set dummy --mode install ${1+"$@"}; shift
+ ;;
+ link|lin|li|l)
+ shift; set dummy --mode link ${1+"$@"}; shift
+ ;;
+ uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
+ shift; set dummy --mode uninstall ${1+"$@"}; shift
+ ;;
+ esac
+
+ # Pass back the list of options.
+ func_quote_for_eval ${1+"$@"}
+ libtool_options_prep_result=$func_quote_for_eval_result
+}
+func_add_hook func_options_prep libtool_options_prep
-# Parse options once, thoroughly. This comes as soon as possible in the
-# script to make things like `--version' happen as quickly as we can.
+# libtool_parse_options [ARG]...
+# ---------------------------------
+# Provide handling for libtool specific options.
+libtool_parse_options ()
{
- # this just eases exit handling
- while test $# -gt 0; do
- opt="$1"
- shift
- case $opt in
- --debug|-x) opt_debug='set -x'
- func_echo "enabling shell trace mode"
- $opt_debug
- ;;
- --dry-run|--dryrun|-n)
- opt_dry_run=:
- ;;
- --config)
- opt_config=:
-func_config
- ;;
- --dlopen|-dlopen)
- optarg="$1"
- opt_dlopen="${opt_dlopen+$opt_dlopen
-}$optarg"
- shift
- ;;
- --preserve-dup-deps)
- opt_preserve_dup_deps=:
- ;;
- --features)
- opt_features=:
-func_features
- ;;
- --finish)
- opt_finish=:
-set dummy --mode finish ${1+"$@"}; shift
- ;;
- --help)
- opt_help=:
- ;;
- --help-all)
- opt_help_all=:
-opt_help=': help-all'
- ;;
- --mode)
- test $# = 0 && func_missing_arg $opt && break
- optarg="$1"
- opt_mode="$optarg"
-case $optarg in
- # Valid mode arguments:
- clean|compile|execute|finish|install|link|relink|uninstall) ;;
-
- # Catch anything else as an error
- *) func_error "invalid argument for $opt"
- exit_cmd=exit
- break
- ;;
-esac
- shift
- ;;
- --no-silent|--no-quiet)
- opt_silent=false
-func_append preserve_args " $opt"
- ;;
- --no-warning|--no-warn)
- opt_warning=false
-func_append preserve_args " $opt"
- ;;
- --no-verbose)
- opt_verbose=false
-func_append preserve_args " $opt"
- ;;
- --silent|--quiet)
- opt_silent=:
-func_append preserve_args " $opt"
- opt_verbose=false
- ;;
- --verbose|-v)
- opt_verbose=:
-func_append preserve_args " $opt"
-opt_silent=false
- ;;
- --tag)
- test $# = 0 && func_missing_arg $opt && break
- optarg="$1"
- opt_tag="$optarg"
-func_append preserve_args " $opt $optarg"
-func_enable_tag "$optarg"
- shift
- ;;
-
- -\?|-h) func_usage ;;
- --help) func_help ;;
- --version) func_version ;;
-
- # Separate optargs to long options:
- --*=*)
- func_split_long_opt "$opt"
- set dummy "$func_split_long_opt_name" "$func_split_long_opt_arg" ${1+"$@"}
- shift
- ;;
-
- # Separate non-argument short options:
- -\?*|-h*|-n*|-v*)
- func_split_short_opt "$opt"
- set dummy "$func_split_short_opt_name" "-$func_split_short_opt_arg" ${1+"$@"}
- shift
- ;;
-
- --) break ;;
- -*) func_fatal_help "unrecognized option \`$opt'" ;;
- *) set dummy "$opt" ${1+"$@"}; shift; break ;;
- esac
- done
+ $debug_cmd
- # Validate options:
+ # Perform our own loop to consume as many options as possible in
+ # each iteration.
+ while test $# -gt 0; do
+ _G_opt=$1
+ shift
+ case $_G_opt in
+ --dry-run|--dryrun|-n)
+ opt_dry_run=:
+ ;;
+
+ --config) func_config ;;
+
+ --dlopen|-dlopen)
+ opt_dlopen="${opt_dlopen+$opt_dlopen
+}$1"
+ shift
+ ;;
+
+ --preserve-dup-deps)
+ opt_preserve_dup_deps=: ;;
+
+ --features) func_features ;;
+
+ --finish) set dummy --mode finish ${1+"$@"}; shift ;;
+
+ --help) opt_help=: ;;
+
+ --help-all) opt_help=': help-all' ;;
+
+ --mode) test $# = 0 && func_missing_arg $_G_opt && break
+ opt_mode=$1
+ case $1 in
+ # Valid mode arguments:
+ clean|compile|execute|finish|install|link|relink|uninstall) ;;
+
+ # Catch anything else as an error
+ *) func_error "invalid argument for $_G_opt"
+ exit_cmd=exit
+ break
+ ;;
+ esac
+ shift
+ ;;
+
+ --no-silent|--no-quiet)
+ opt_quiet=false
+ func_append preserve_args " $_G_opt"
+ ;;
+
+ --no-warnings|--no-warning|--no-warn)
+ opt_warning=false
+ func_append preserve_args " $_G_opt"
+ ;;
+
+ --no-verbose)
+ opt_verbose=false
+ func_append preserve_args " $_G_opt"
+ ;;
+
+ --silent|--quiet)
+ opt_quiet=:
+ opt_verbose=false
+ func_append preserve_args " $_G_opt"
+ ;;
+
+ --tag) test $# = 0 && func_missing_arg $_G_opt && break
+ opt_tag=$1
+ func_append preserve_args " $_G_opt $1"
+ func_enable_tag "$1"
+ shift
+ ;;
+
+ --verbose|-v) opt_quiet=false
+ opt_verbose=:
+ func_append preserve_args " $_G_opt"
+ ;;
+
+ # An option not handled by this hook function:
+ *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;;
+ esac
+ done
- # save first non-option argument
- if test "$#" -gt 0; then
- nonopt="$opt"
- shift
- fi
- # preserve --debug
- test "$opt_debug" = : || func_append preserve_args " --debug"
+ # save modified positional parameters for caller
+ func_quote_for_eval ${1+"$@"}
+ libtool_parse_options_result=$func_quote_for_eval_result
+}
+func_add_hook func_parse_options libtool_parse_options
- case $host in
- *cygwin* | *mingw* | *pw32* | *cegcc*)
- # don't eliminate duplications in $postdeps and $predeps
- opt_duplicate_compiler_generated_deps=:
- ;;
- *)
- opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps
- ;;
- esac
- $opt_help || {
- # Sanity checks first:
- func_check_version_match
- if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then
- func_fatal_configuration "not configured to build any kind of library"
+# libtool_validate_options [ARG]...
+# ---------------------------------
+# Perform any sanity checks on option settings and/or unconsumed
+# arguments.
+libtool_validate_options ()
+{
+ # save first non-option argument
+ if test 0 -lt $#; then
+ nonopt=$1
+ shift
fi
- # Darwin sucks
- eval std_shrext=\"$shrext_cmds\"
+ # preserve --debug
+ test : = "$debug_cmd" || func_append preserve_args " --debug"
- # Only execute mode is allowed to have -dlopen flags.
- if test -n "$opt_dlopen" && test "$opt_mode" != execute; then
- func_error "unrecognized option \`-dlopen'"
- $ECHO "$help" 1>&2
- exit $EXIT_FAILURE
- fi
+ case $host in
+ # Solaris2 added to fix http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452
+ # see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788
+ *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* | *os2*)
+ # don't eliminate duplications in $postdeps and $predeps
+ opt_duplicate_compiler_generated_deps=:
+ ;;
+ *)
+ opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps
+ ;;
+ esac
- # Change the help message to a mode-specific one.
- generic_help="$help"
- help="Try \`$progname --help --mode=$opt_mode' for more information."
- }
+ $opt_help || {
+ # Sanity checks first:
+ func_check_version_match
+
+ test yes != "$build_libtool_libs" \
+ && test yes != "$build_old_libs" \
+ && func_fatal_configuration "not configured to build any kind of library"
+
+ # Darwin sucks
+ eval std_shrext=\"$shrext_cmds\"
+
+ # Only execute mode is allowed to have -dlopen flags.
+ if test -n "$opt_dlopen" && test execute != "$opt_mode"; then
+ func_error "unrecognized option '-dlopen'"
+ $ECHO "$help" 1>&2
+ exit $EXIT_FAILURE
+ fi
+ # Change the help message to a mode-specific one.
+ generic_help=$help
+ help="Try '$progname --help --mode=$opt_mode' for more information."
+ }
- # Bail if the options were screwed
- $exit_cmd $EXIT_FAILURE
+ # Pass back the unparsed argument list
+ func_quote_for_eval ${1+"$@"}
+ libtool_validate_options_result=$func_quote_for_eval_result
}
+func_add_hook func_validate_options libtool_validate_options
+# Process options as early as possible so that --help and --version
+# can return quickly.
+func_options ${1+"$@"}
+eval set dummy "$func_options_result"; shift
+
## ----------- ##
## Main. ##
## ----------- ##
+magic='%%%MAGIC variable%%%'
+magic_exe='%%%MAGIC EXE variable%%%'
+
+# Global variables.
+extracted_archives=
+extracted_serial=0
+
+# If this variable is set in any of the actions, the command in it
+# will be execed at the end. This prevents here-documents from being
+# left over by shells.
+exec_cmd=
+
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+ eval 'cat <<_LTECHO_EOF
+$1
+_LTECHO_EOF'
+}
+
+# func_generated_by_libtool
+# True iff stdin has been generated by Libtool. This function is only
+# a basic sanity check; it will hardly flush out determined imposters.
+func_generated_by_libtool_p ()
+{
+ $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
+}
+
# func_lalib_p file
-# True iff FILE is a libtool `.la' library or `.lo' object file.
+# True iff FILE is a libtool '.la' library or '.lo' object file.
# This function is only a basic sanity check; it will hardly flush out
# determined imposters.
func_lalib_p ()
{
test -f "$1" &&
- $SED -e 4q "$1" 2>/dev/null \
- | $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
+ $SED -e 4q "$1" 2>/dev/null | func_generated_by_libtool_p
}
# func_lalib_unsafe_p file
-# True iff FILE is a libtool `.la' library or `.lo' object file.
+# True iff FILE is a libtool '.la' library or '.lo' object file.
# This function implements the same check as func_lalib_p without
# resorting to external programs. To this end, it redirects stdin and
# closes it afterwards, without saving the original file descriptor.
# As a safety measure, use it only where a negative result would be
-# fatal anyway. Works if `file' does not exist.
+# fatal anyway. Works if 'file' does not exist.
func_lalib_unsafe_p ()
{
lalib_p=no
for lalib_p_l in 1 2 3 4
do
read lalib_p_line
- case "$lalib_p_line" in
+ case $lalib_p_line in
\#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;;
esac
done
exec 0<&5 5<&-
fi
- test "$lalib_p" = yes
+ test yes = "$lalib_p"
}
# func_ltwrapper_script_p file
# determined imposters.
func_ltwrapper_script_p ()
{
- func_lalib_p "$1"
+ test -f "$1" &&
+ $lt_truncate_bin < "$1" 2>/dev/null | func_generated_by_libtool_p
}
# func_ltwrapper_executable_p file
{
func_dirname_and_basename "$1" "" "."
func_stripname '' '.exe' "$func_basename_result"
- func_ltwrapper_scriptname_result="$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper"
+ func_ltwrapper_scriptname_result=$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper
}
# func_ltwrapper_p file
# FAIL_CMD may read-access the current command in variable CMD!
func_execute_cmds ()
{
- $opt_debug
+ $debug_cmd
+
save_ifs=$IFS; IFS='~'
for cmd in $1; do
- IFS=$save_ifs
+ IFS=$sp$nl
eval cmd=\"$cmd\"
+ IFS=$save_ifs
func_show_eval "$cmd" "${2-:}"
done
IFS=$save_ifs
# Note that it is not necessary on cygwin/mingw to append a dot to
# FILE even if both FILE and FILE.exe exist: automatic-append-.exe
# behavior happens only for exec(3), not for open(2)! Also, sourcing
-# `FILE.' does not work on cygwin managed mounts.
+# 'FILE.' does not work on cygwin managed mounts.
func_source ()
{
- $opt_debug
+ $debug_cmd
+
case $1 in
*/* | *\\*) . "$1" ;;
*) . "./$1" ;;
# store the result into func_replace_sysroot_result.
func_replace_sysroot ()
{
- case "$lt_sysroot:$1" in
+ case $lt_sysroot:$1 in
?*:"$lt_sysroot"*)
func_stripname "$lt_sysroot" '' "$1"
- func_replace_sysroot_result="=$func_stripname_result"
+ func_replace_sysroot_result='='$func_stripname_result
;;
*)
# Including no sysroot.
# arg is usually of the form 'gcc ...'
func_infer_tag ()
{
- $opt_debug
+ $debug_cmd
+
if test -n "$available_tags" && test -z "$tagname"; then
CC_quoted=
for arg in $CC; do
for z in $available_tags; do
if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then
# Evaluate the configuration.
- eval "`${SED} -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
+ eval "`$SED -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
CC_quoted=
for arg in $CC; do
# Double-quote args containing other shell metacharacters.
# line option must be used.
if test -z "$tagname"; then
func_echo "unable to infer tagged configuration"
- func_fatal_error "specify a tag with \`--tag'"
+ func_fatal_error "specify a tag with '--tag'"
# else
# func_verbose "using $tagname tagged configuration"
fi
# but don't create it if we're doing a dry run.
func_write_libtool_object ()
{
- write_libobj=${1}
- if test "$build_libtool_libs" = yes; then
- write_lobj=\'${2}\'
+ write_libobj=$1
+ if test yes = "$build_libtool_libs"; then
+ write_lobj=\'$2\'
else
write_lobj=none
fi
- if test "$build_old_libs" = yes; then
- write_oldobj=\'${3}\'
+ if test yes = "$build_old_libs"; then
+ write_oldobj=\'$3\'
else
write_oldobj=none
fi
$opt_dry_run || {
cat >${write_libobj}T <<EOF
# $write_libobj - a libtool object file
-# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
+# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
#
# Please DO NOT delete this file!
# It is necessary for linking the library.
non_pic_object=$write_oldobj
EOF
- $MV "${write_libobj}T" "${write_libobj}"
+ $MV "${write_libobj}T" "$write_libobj"
}
}
# be empty on error (or when ARG is empty)
func_convert_core_file_wine_to_w32 ()
{
- $opt_debug
- func_convert_core_file_wine_to_w32_result="$1"
+ $debug_cmd
+
+ func_convert_core_file_wine_to_w32_result=$1
if test -n "$1"; then
# Unfortunately, winepath does not exit with a non-zero error code, so we
# are forced to check the contents of stdout. On the other hand, if the
# *an error message* to stdout. So we must check for both error code of
# zero AND non-empty stdout, which explains the odd construction:
func_convert_core_file_wine_to_w32_tmp=`winepath -w "$1" 2>/dev/null`
- if test "$?" -eq 0 && test -n "${func_convert_core_file_wine_to_w32_tmp}"; then
+ if test "$?" -eq 0 && test -n "$func_convert_core_file_wine_to_w32_tmp"; then
func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" |
- $SED -e "$lt_sed_naive_backslashify"`
+ $SED -e "$sed_naive_backslashify"`
else
func_convert_core_file_wine_to_w32_result=
fi
# are convertible, then the result may be empty.
func_convert_core_path_wine_to_w32 ()
{
- $opt_debug
+ $debug_cmd
+
# unfortunately, winepath doesn't convert paths, only file names
- func_convert_core_path_wine_to_w32_result=""
+ func_convert_core_path_wine_to_w32_result=
if test -n "$1"; then
oldIFS=$IFS
IFS=:
for func_convert_core_path_wine_to_w32_f in $1; do
IFS=$oldIFS
func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f"
- if test -n "$func_convert_core_file_wine_to_w32_result" ; then
+ if test -n "$func_convert_core_file_wine_to_w32_result"; then
if test -z "$func_convert_core_path_wine_to_w32_result"; then
- func_convert_core_path_wine_to_w32_result="$func_convert_core_file_wine_to_w32_result"
+ func_convert_core_path_wine_to_w32_result=$func_convert_core_file_wine_to_w32_result
else
func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result"
fi
# environment variable; do not put it in $PATH.
func_cygpath ()
{
- $opt_debug
+ $debug_cmd
+
if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then
func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null`
if test "$?" -ne 0; then
fi
else
func_cygpath_result=
- func_error "LT_CYGPATH is empty or specifies non-existent file: \`$LT_CYGPATH'"
+ func_error "LT_CYGPATH is empty or specifies non-existent file: '$LT_CYGPATH'"
fi
}
#end: func_cygpath
# result in func_convert_core_msys_to_w32_result.
func_convert_core_msys_to_w32 ()
{
- $opt_debug
+ $debug_cmd
+
# awkward: cmd appends spaces to result
func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null |
- $SED -e 's/[ ]*$//' -e "$lt_sed_naive_backslashify"`
+ $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"`
}
#end: func_convert_core_msys_to_w32
# func_to_host_file_result to ARG1).
func_convert_file_check ()
{
- $opt_debug
- if test -z "$2" && test -n "$1" ; then
+ $debug_cmd
+
+ if test -z "$2" && test -n "$1"; then
func_error "Could not determine host file name corresponding to"
- func_error " \`$1'"
+ func_error " '$1'"
func_error "Continuing, but uninstalled executables may not work."
# Fallback:
- func_to_host_file_result="$1"
+ func_to_host_file_result=$1
fi
}
# end func_convert_file_check
# func_to_host_file_result to a simplistic fallback value (see below).
func_convert_path_check ()
{
- $opt_debug
+ $debug_cmd
+
if test -z "$4" && test -n "$3"; then
func_error "Could not determine the host path corresponding to"
- func_error " \`$3'"
+ func_error " '$3'"
func_error "Continuing, but uninstalled executables may not work."
# Fallback. This is a deliberately simplistic "conversion" and
# should not be "improved". See libtool.info.
func_to_host_path_result=`echo "$3" |
$SED -e "$lt_replace_pathsep_chars"`
else
- func_to_host_path_result="$3"
+ func_to_host_path_result=$3
fi
fi
}
# and appending REPL if ORIG matches BACKPAT.
func_convert_path_front_back_pathsep ()
{
- $opt_debug
+ $debug_cmd
+
case $4 in
- $1 ) func_to_host_path_result="$3$func_to_host_path_result"
+ $1 ) func_to_host_path_result=$3$func_to_host_path_result
;;
esac
case $4 in
##################################################
# $build to $host FILE NAME CONVERSION FUNCTIONS #
##################################################
-# invoked via `$to_host_file_cmd ARG'
+# invoked via '$to_host_file_cmd ARG'
#
# In each case, ARG is the path to be converted from $build to $host format.
# Result will be available in $func_to_host_file_result.
# in func_to_host_file_result.
func_to_host_file ()
{
- $opt_debug
+ $debug_cmd
+
$to_host_file_cmd "$1"
}
# end func_to_host_file
# in (the comma separated) LAZY, no conversion takes place.
func_to_tool_file ()
{
- $opt_debug
+ $debug_cmd
+
case ,$2, in
*,"$to_tool_file_cmd",*)
func_to_tool_file_result=$1
# Copy ARG to func_to_host_file_result.
func_convert_file_noop ()
{
- func_to_host_file_result="$1"
+ func_to_host_file_result=$1
}
# end func_convert_file_noop
# func_to_host_file_result.
func_convert_file_msys_to_w32 ()
{
- $opt_debug
- func_to_host_file_result="$1"
+ $debug_cmd
+
+ func_to_host_file_result=$1
if test -n "$1"; then
func_convert_core_msys_to_w32 "$1"
- func_to_host_file_result="$func_convert_core_msys_to_w32_result"
+ func_to_host_file_result=$func_convert_core_msys_to_w32_result
fi
func_convert_file_check "$1" "$func_to_host_file_result"
}
# func_to_host_file_result.
func_convert_file_cygwin_to_w32 ()
{
- $opt_debug
- func_to_host_file_result="$1"
+ $debug_cmd
+
+ func_to_host_file_result=$1
if test -n "$1"; then
# because $build is cygwin, we call "the" cygpath in $PATH; no need to use
# LT_CYGPATH in this case.
# and a working winepath. Returns result in func_to_host_file_result.
func_convert_file_nix_to_w32 ()
{
- $opt_debug
- func_to_host_file_result="$1"
+ $debug_cmd
+
+ func_to_host_file_result=$1
if test -n "$1"; then
func_convert_core_file_wine_to_w32 "$1"
- func_to_host_file_result="$func_convert_core_file_wine_to_w32_result"
+ func_to_host_file_result=$func_convert_core_file_wine_to_w32_result
fi
func_convert_file_check "$1" "$func_to_host_file_result"
}
# Returns result in func_to_host_file_result.
func_convert_file_msys_to_cygwin ()
{
- $opt_debug
- func_to_host_file_result="$1"
+ $debug_cmd
+
+ func_to_host_file_result=$1
if test -n "$1"; then
func_convert_core_msys_to_w32 "$1"
func_cygpath -u "$func_convert_core_msys_to_w32_result"
- func_to_host_file_result="$func_cygpath_result"
+ func_to_host_file_result=$func_cygpath_result
fi
func_convert_file_check "$1" "$func_to_host_file_result"
}
# in func_to_host_file_result.
func_convert_file_nix_to_cygwin ()
{
- $opt_debug
- func_to_host_file_result="$1"
+ $debug_cmd
+
+ func_to_host_file_result=$1
if test -n "$1"; then
# convert from *nix to w32, then use cygpath to convert from w32 to cygwin.
func_convert_core_file_wine_to_w32 "$1"
func_cygpath -u "$func_convert_core_file_wine_to_w32_result"
- func_to_host_file_result="$func_cygpath_result"
+ func_to_host_file_result=$func_cygpath_result
fi
func_convert_file_check "$1" "$func_to_host_file_result"
}
#############################################
# $build to $host PATH CONVERSION FUNCTIONS #
#############################################
-# invoked via `$to_host_path_cmd ARG'
+# invoked via '$to_host_path_cmd ARG'
#
# In each case, ARG is the path to be converted from $build to $host format.
# The result will be available in $func_to_host_path_result.
to_host_path_cmd=
func_init_to_host_path_cmd ()
{
- $opt_debug
+ $debug_cmd
+
if test -z "$to_host_path_cmd"; then
func_stripname 'func_convert_file_' '' "$to_host_file_cmd"
- to_host_path_cmd="func_convert_path_${func_stripname_result}"
+ to_host_path_cmd=func_convert_path_$func_stripname_result
fi
}
# in func_to_host_path_result.
func_to_host_path ()
{
- $opt_debug
+ $debug_cmd
+
func_init_to_host_path_cmd
$to_host_path_cmd "$1"
}
# Copy ARG to func_to_host_path_result.
func_convert_path_noop ()
{
- func_to_host_path_result="$1"
+ func_to_host_path_result=$1
}
# end func_convert_path_noop
# func_to_host_path_result.
func_convert_path_msys_to_w32 ()
{
- $opt_debug
- func_to_host_path_result="$1"
+ $debug_cmd
+
+ func_to_host_path_result=$1
if test -n "$1"; then
# Remove leading and trailing path separator characters from ARG. MSYS
# behavior is inconsistent here; cygpath turns them into '.;' and ';.';
func_stripname : : "$1"
func_to_host_path_tmp1=$func_stripname_result
func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
- func_to_host_path_result="$func_convert_core_msys_to_w32_result"
+ func_to_host_path_result=$func_convert_core_msys_to_w32_result
func_convert_path_check : ";" \
"$func_to_host_path_tmp1" "$func_to_host_path_result"
func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
# func_to_host_file_result.
func_convert_path_cygwin_to_w32 ()
{
- $opt_debug
- func_to_host_path_result="$1"
+ $debug_cmd
+
+ func_to_host_path_result=$1
if test -n "$1"; then
# See func_convert_path_msys_to_w32:
func_stripname : : "$1"
# a working winepath. Returns result in func_to_host_file_result.
func_convert_path_nix_to_w32 ()
{
- $opt_debug
- func_to_host_path_result="$1"
+ $debug_cmd
+
+ func_to_host_path_result=$1
if test -n "$1"; then
# See func_convert_path_msys_to_w32:
func_stripname : : "$1"
func_to_host_path_tmp1=$func_stripname_result
func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
- func_to_host_path_result="$func_convert_core_path_wine_to_w32_result"
+ func_to_host_path_result=$func_convert_core_path_wine_to_w32_result
func_convert_path_check : ";" \
"$func_to_host_path_tmp1" "$func_to_host_path_result"
func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
# Returns result in func_to_host_file_result.
func_convert_path_msys_to_cygwin ()
{
- $opt_debug
- func_to_host_path_result="$1"
+ $debug_cmd
+
+ func_to_host_path_result=$1
if test -n "$1"; then
# See func_convert_path_msys_to_w32:
func_stripname : : "$1"
func_to_host_path_tmp1=$func_stripname_result
func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
func_cygpath -u -p "$func_convert_core_msys_to_w32_result"
- func_to_host_path_result="$func_cygpath_result"
+ func_to_host_path_result=$func_cygpath_result
func_convert_path_check : : \
"$func_to_host_path_tmp1" "$func_to_host_path_result"
func_convert_path_front_back_pathsep ":*" "*:" : "$1"
# func_to_host_file_result.
func_convert_path_nix_to_cygwin ()
{
- $opt_debug
- func_to_host_path_result="$1"
+ $debug_cmd
+
+ func_to_host_path_result=$1
if test -n "$1"; then
# Remove leading and trailing path separator characters from
# ARG. msys behavior is inconsistent here, cygpath turns them
func_to_host_path_tmp1=$func_stripname_result
func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result"
- func_to_host_path_result="$func_cygpath_result"
+ func_to_host_path_result=$func_cygpath_result
func_convert_path_check : : \
"$func_to_host_path_tmp1" "$func_to_host_path_result"
func_convert_path_front_back_pathsep ":*" "*:" : "$1"
# end func_convert_path_nix_to_cygwin
+# func_dll_def_p FILE
+# True iff FILE is a Windows DLL '.def' file.
+# Keep in sync with _LT_DLL_DEF_P in libtool.m4
+func_dll_def_p ()
+{
+ $debug_cmd
+
+ func_dll_def_p_tmp=`$SED -n \
+ -e 's/^[ ]*//' \
+ -e '/^\(;.*\)*$/d' \
+ -e 's/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p' \
+ -e q \
+ "$1"`
+ test DEF = "$func_dll_def_p_tmp"
+}
+
+
# func_mode_compile arg...
func_mode_compile ()
{
- $opt_debug
+ $debug_cmd
+
# Get the compilation command and the source file.
base_compile=
- srcfile="$nonopt" # always keep a non-empty value in "srcfile"
+ srcfile=$nonopt # always keep a non-empty value in "srcfile"
suppress_opt=yes
suppress_output=
arg_mode=normal
case $arg_mode in
arg )
# do not "continue". Instead, add this to base_compile
- lastarg="$arg"
+ lastarg=$arg
arg_mode=normal
;;
target )
- libobj="$arg"
+ libobj=$arg
arg_mode=normal
continue
;;
case $arg in
-o)
test -n "$libobj" && \
- func_fatal_error "you cannot specify \`-o' more than once"
+ func_fatal_error "you cannot specify '-o' more than once"
arg_mode=target
continue
;;
func_stripname '-Wc,' '' "$arg"
args=$func_stripname_result
lastarg=
- save_ifs="$IFS"; IFS=','
+ save_ifs=$IFS; IFS=,
for arg in $args; do
- IFS="$save_ifs"
+ IFS=$save_ifs
func_append_quoted lastarg "$arg"
done
- IFS="$save_ifs"
+ IFS=$save_ifs
func_stripname ' ' '' "$lastarg"
lastarg=$func_stripname_result
# Accept the current argument as the source file.
# The previous "srcfile" becomes the current argument.
#
- lastarg="$srcfile"
- srcfile="$arg"
+ lastarg=$srcfile
+ srcfile=$arg
;;
esac # case $arg
;;
func_fatal_error "you must specify an argument for -Xcompile"
;;
target)
- func_fatal_error "you must specify a target with \`-o'"
+ func_fatal_error "you must specify a target with '-o'"
;;
*)
# Get the name of the library object.
test -z "$libobj" && {
func_basename "$srcfile"
- libobj="$func_basename_result"
+ libobj=$func_basename_result
}
;;
esac
case $libobj in
*.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;;
*)
- func_fatal_error "cannot determine name of library object from \`$libobj'"
+ func_fatal_error "cannot determine name of library object from '$libobj'"
;;
esac
for arg in $later; do
case $arg in
-shared)
- test "$build_libtool_libs" != yes && \
- func_fatal_configuration "can not build a shared library"
+ test yes = "$build_libtool_libs" \
+ || func_fatal_configuration "cannot build a shared library"
build_old_libs=no
continue
;;
func_quote_for_eval "$libobj"
test "X$libobj" != "X$func_quote_for_eval_result" \
&& $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \
- && func_warning "libobj name \`$libobj' may not contain shell special characters."
+ && func_warning "libobj name '$libobj' may not contain shell special characters."
func_dirname_and_basename "$obj" "/" ""
- objname="$func_basename_result"
- xdir="$func_dirname_result"
- lobj=${xdir}$objdir/$objname
+ objname=$func_basename_result
+ xdir=$func_dirname_result
+ lobj=$xdir$objdir/$objname
test -z "$base_compile" && \
func_fatal_help "you must specify a compilation command"
# Delete any leftover library objects.
- if test "$build_old_libs" = yes; then
+ if test yes = "$build_old_libs"; then
removelist="$obj $lobj $libobj ${libobj}T"
else
removelist="$lobj $libobj ${libobj}T"
pic_mode=default
;;
esac
- if test "$pic_mode" = no && test "$deplibs_check_method" != pass_all; then
+ if test no = "$pic_mode" && test pass_all != "$deplibs_check_method"; then
# non-PIC code in shared libraries is not supported
pic_mode=default
fi
# Calculate the filename of the output object if compiler does
# not support -o with -c
- if test "$compiler_c_o" = no; then
- output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.${objext}
- lockfile="$output_obj.lock"
+ if test no = "$compiler_c_o"; then
+ output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.$objext
+ lockfile=$output_obj.lock
else
output_obj=
need_locks=no
# Lock this critical section if it is needed
# We use this script file to make the link, it avoids creating a new file
- if test "$need_locks" = yes; then
+ if test yes = "$need_locks"; then
until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
func_echo "Waiting for $lockfile to be removed"
sleep 2
done
- elif test "$need_locks" = warn; then
+ elif test warn = "$need_locks"; then
if test -f "$lockfile"; then
$ECHO "\
*** ERROR, $lockfile exists and contains:
This indicates that another process is trying to use the same
temporary object file, and libtool could not work around it because
-your compiler does not support \`-c' and \`-o' together. If you
+your compiler does not support '-c' and '-o' together. If you
repeat this compilation, it may succeed, by chance, but you had better
avoid parallel builds (make -j) in this platform, or get a better
compiler."
qsrcfile=$func_quote_for_eval_result
# Only build a PIC object if we are building libtool libraries.
- if test "$build_libtool_libs" = yes; then
+ if test yes = "$build_libtool_libs"; then
# Without this assignment, base_compile gets emptied.
fbsd_hideous_sh_bug=$base_compile
- if test "$pic_mode" != no; then
+ if test no != "$pic_mode"; then
command="$base_compile $qsrcfile $pic_flag"
else
# Don't build PIC code
func_show_eval_locale "$command" \
'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE'
- if test "$need_locks" = warn &&
+ if test warn = "$need_locks" &&
test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
$ECHO "\
*** ERROR, $lockfile contains:
This indicates that another process is trying to use the same
temporary object file, and libtool could not work around it because
-your compiler does not support \`-c' and \`-o' together. If you
+your compiler does not support '-c' and '-o' together. If you
repeat this compilation, it may succeed, by chance, but you had better
avoid parallel builds (make -j) in this platform, or get a better
compiler."
fi
# Allow error messages only from the first compilation.
- if test "$suppress_opt" = yes; then
+ if test yes = "$suppress_opt"; then
suppress_output=' >/dev/null 2>&1'
fi
fi
# Only build a position-dependent object if we build old libraries.
- if test "$build_old_libs" = yes; then
- if test "$pic_mode" != yes; then
+ if test yes = "$build_old_libs"; then
+ if test yes != "$pic_mode"; then
# Don't build PIC code
command="$base_compile $qsrcfile$pie_flag"
else
command="$base_compile $qsrcfile $pic_flag"
fi
- if test "$compiler_c_o" = yes; then
+ if test yes = "$compiler_c_o"; then
func_append command " -o $obj"
fi
func_show_eval_locale "$command" \
'$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE'
- if test "$need_locks" = warn &&
+ if test warn = "$need_locks" &&
test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
$ECHO "\
*** ERROR, $lockfile contains:
This indicates that another process is trying to use the same
temporary object file, and libtool could not work around it because
-your compiler does not support \`-c' and \`-o' together. If you
+your compiler does not support '-c' and '-o' together. If you
repeat this compilation, it may succeed, by chance, but you had better
avoid parallel builds (make -j) in this platform, or get a better
compiler."
func_write_libtool_object "$libobj" "$objdir/$objname" "$objname"
# Unlock the critical section if it was locked
- if test "$need_locks" != no; then
+ if test no != "$need_locks"; then
removelist=$lockfile
$RM "$lockfile"
fi
}
$opt_help || {
- test "$opt_mode" = compile && func_mode_compile ${1+"$@"}
+ test compile = "$opt_mode" && func_mode_compile ${1+"$@"}
}
func_mode_help ()
Remove files from the build directory.
RM is the name of the program to use to delete files associated with each FILE
-(typically \`/bin/rm'). RM-OPTIONS are options (such as \`-f') to be passed
+(typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed
to RM.
If FILE is a libtool library, object or program, all the files associated
-no-suppress do not suppress compiler output for multiple passes
-prefer-pic try to build PIC objects only
-prefer-non-pic try to build non-PIC objects only
- -shared do not build a \`.o' file suitable for static linking
- -static only build a \`.o' file suitable for static linking
+ -shared do not build a '.o' file suitable for static linking
+ -static only build a '.o' file suitable for static linking
-Wc,FLAG pass FLAG directly to the compiler
-COMPILE-COMMAND is a command to be used in creating a \`standard' object file
+COMPILE-COMMAND is a command to be used in creating a 'standard' object file
from the given SOURCEFILE.
The output file name is determined by removing the directory component from
-SOURCEFILE, then substituting the C source code suffix \`.c' with the
-library object suffix, \`.lo'."
+SOURCEFILE, then substituting the C source code suffix '.c' with the
+library object suffix, '.lo'."
;;
execute)
-dlopen FILE add the directory containing FILE to the library path
-This mode sets the library path environment variable according to \`-dlopen'
+This mode sets the library path environment variable according to '-dlopen'
flags.
If any of the ARGS are libtool executable wrappers, then they are translated
Each LIBDIR is a directory that contains libtool libraries.
The commands that this mode executes may require superuser privileges. Use
-the \`--dry-run' option if you just want to see what would be executed."
+the '--dry-run' option if you just want to see what would be executed."
;;
install)
Install executables or libraries.
INSTALL-COMMAND is the installation command. The first component should be
-either the \`install' or \`cp' program.
+either the 'install' or 'cp' program.
The following components of INSTALL-COMMAND are treated specially:
-avoid-version do not add a version suffix if possible
-bindir BINDIR specify path to binaries directory (for systems where
libraries must be found in the PATH setting at runtime)
- -dlopen FILE \`-dlpreopen' FILE if it cannot be dlopened at runtime
+ -dlopen FILE '-dlpreopen' FILE if it cannot be dlopened at runtime
-dlpreopen FILE link in FILE and add its symbols to lt_preloaded_symbols
-export-dynamic allow symbols from OUTPUT-FILE to be resolved with dlsym(3)
-export-symbols SYMFILE
-no-install link a not-installable executable
-no-undefined declare that a library does not refer to external symbols
-o OUTPUT-FILE create OUTPUT-FILE from the specified objects
- -objectlist FILE Use a list of object files found in FILE to specify objects
+ -objectlist FILE use a list of object files found in FILE to specify objects
+ -os2dllname NAME force a short DLL name on OS/2 (no effect on other OSes)
-precious-files-regex REGEX
don't remove output files matching REGEX
-release RELEASE specify package release information
-Xlinker FLAG pass linker-specific FLAG directly to the linker
-XCClinker FLAG pass link-specific FLAG to the compiler driver (CC)
-All other options (arguments beginning with \`-') are ignored.
+All other options (arguments beginning with '-') are ignored.
-Every other argument is treated as a filename. Files ending in \`.la' are
+Every other argument is treated as a filename. Files ending in '.la' are
treated as uninstalled libtool libraries, other files are standard or library
object files.
-If the OUTPUT-FILE ends in \`.la', then a libtool library is created,
-only library objects (\`.lo' files) may be specified, and \`-rpath' is
+If the OUTPUT-FILE ends in '.la', then a libtool library is created,
+only library objects ('.lo' files) may be specified, and '-rpath' is
required, except when creating a convenience library.
-If OUTPUT-FILE ends in \`.a' or \`.lib', then a standard library is created
-using \`ar' and \`ranlib', or on Windows using \`lib'.
+If OUTPUT-FILE ends in '.a' or '.lib', then a standard library is created
+using 'ar' and 'ranlib', or on Windows using 'lib'.
-If OUTPUT-FILE ends in \`.lo' or \`.${objext}', then a reloadable object file
+If OUTPUT-FILE ends in '.lo' or '.$objext', then a reloadable object file
is created, otherwise an executable program is created."
;;
Remove libraries from an installation directory.
RM is the name of the program to use to delete files associated with each FILE
-(typically \`/bin/rm'). RM-OPTIONS are options (such as \`-f') to be passed
+(typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed
to RM.
If FILE is a libtool library, all the files associated with it are deleted.
;;
*)
- func_fatal_help "invalid operation mode \`$opt_mode'"
+ func_fatal_help "invalid operation mode '$opt_mode'"
;;
esac
echo
- $ECHO "Try \`$progname --help' for more information about other modes."
+ $ECHO "Try '$progname --help' for more information about other modes."
}
# Now that we've collected a possible --mode arg, show help if necessary
if $opt_help; then
- if test "$opt_help" = :; then
+ if test : = "$opt_help"; then
func_mode_help
else
{
for opt_mode in compile link execute install finish uninstall clean; do
func_mode_help
done
- } | sed -n '1p; 2,$s/^Usage:/ or: /p'
+ } | $SED -n '1p; 2,$s/^Usage:/ or: /p'
{
func_help noexit
for opt_mode in compile link execute install finish uninstall clean; do
func_mode_help
done
} |
- sed '1d
+ $SED '1d
/^When reporting/,/^Report/{
H
d
# func_mode_execute arg...
func_mode_execute ()
{
- $opt_debug
+ $debug_cmd
+
# The first argument is the command name.
- cmd="$nonopt"
+ cmd=$nonopt
test -z "$cmd" && \
func_fatal_help "you must specify a COMMAND"
# Handle -dlopen flags immediately.
for file in $opt_dlopen; do
test -f "$file" \
- || func_fatal_help "\`$file' is not a file"
+ || func_fatal_help "'$file' is not a file"
dir=
case $file in
# Check to see that this really is a libtool archive.
func_lalib_unsafe_p "$file" \
- || func_fatal_help "\`$lib' is not a valid libtool archive"
+ || func_fatal_help "'$lib' is not a valid libtool archive"
# Read the libtool library.
dlname=
if test -z "$dlname"; then
# Warn if it was a shared library.
test -n "$library_names" && \
- func_warning "\`$file' was not linked with \`-export-dynamic'"
+ func_warning "'$file' was not linked with '-export-dynamic'"
continue
fi
func_dirname "$file" "" "."
- dir="$func_dirname_result"
+ dir=$func_dirname_result
if test -f "$dir/$objdir/$dlname"; then
func_append dir "/$objdir"
else
if test ! -f "$dir/$dlname"; then
- func_fatal_error "cannot find \`$dlname' in \`$dir' or \`$dir/$objdir'"
+ func_fatal_error "cannot find '$dlname' in '$dir' or '$dir/$objdir'"
fi
fi
;;
*.lo)
# Just add the directory containing the .lo file.
func_dirname "$file" "" "."
- dir="$func_dirname_result"
+ dir=$func_dirname_result
;;
*)
- func_warning "\`-dlopen' is ignored for non-libtool libraries and objects"
+ func_warning "'-dlopen' is ignored for non-libtool libraries and objects"
continue
;;
esac
# Get the absolute pathname.
absdir=`cd "$dir" && pwd`
- test -n "$absdir" && dir="$absdir"
+ test -n "$absdir" && dir=$absdir
# Now add the directory to shlibpath_var.
if eval "test -z \"\$$shlibpath_var\""; then
# This variable tells wrapper scripts just to set shlibpath_var
# rather than running their programs.
- libtool_execute_magic="$magic"
+ libtool_execute_magic=$magic
# Check if any of the arguments is a wrapper script.
args=
if func_ltwrapper_script_p "$file"; then
func_source "$file"
# Transform arg to wrapped name.
- file="$progdir/$program"
+ file=$progdir/$program
elif func_ltwrapper_executable_p "$file"; then
func_ltwrapper_scriptname "$file"
func_source "$func_ltwrapper_scriptname_result"
# Transform arg to wrapped name.
- file="$progdir/$program"
+ file=$progdir/$program
fi
;;
esac
func_append_quoted args "$file"
done
- if test "X$opt_dry_run" = Xfalse; then
+ if $opt_dry_run; then
+ # Display what would be done.
+ if test -n "$shlibpath_var"; then
+ eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\""
+ echo "export $shlibpath_var"
+ fi
+ $ECHO "$cmd$args"
+ exit $EXIT_SUCCESS
+ else
if test -n "$shlibpath_var"; then
# Export the shlibpath_var.
eval "export $shlibpath_var"
done
# Now prepare to actually exec the command.
- exec_cmd="\$cmd$args"
- else
- # Display what would be done.
- if test -n "$shlibpath_var"; then
- eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\""
- echo "export $shlibpath_var"
- fi
- $ECHO "$cmd$args"
- exit $EXIT_SUCCESS
+ exec_cmd=\$cmd$args
fi
}
-test "$opt_mode" = execute && func_mode_execute ${1+"$@"}
+test execute = "$opt_mode" && func_mode_execute ${1+"$@"}
# func_mode_finish arg...
func_mode_finish ()
{
- $opt_debug
+ $debug_cmd
+
libs=
libdirs=
admincmds=
if func_lalib_unsafe_p "$opt"; then
func_append libs " $opt"
else
- func_warning "\`$opt' is not a valid libtool archive"
+ func_warning "'$opt' is not a valid libtool archive"
fi
else
- func_fatal_error "invalid argument \`$opt'"
+ func_fatal_error "invalid argument '$opt'"
fi
done
# Remove sysroot references
if $opt_dry_run; then
for lib in $libs; do
- echo "removing references to $lt_sysroot and \`=' prefixes from $lib"
+ echo "removing references to $lt_sysroot and '=' prefixes from $lib"
done
else
tmpdir=`func_mktempdir`
for lib in $libs; do
- sed -e "${sysroot_cmd} s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \
+ $SED -e "$sysroot_cmd s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \
> $tmpdir/tmp-la
mv -f $tmpdir/tmp-la $lib
done
fi
# Exit here if they wanted silent mode.
- $opt_silent && exit $EXIT_SUCCESS
+ $opt_quiet && exit $EXIT_SUCCESS
if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
echo "----------------------------------------------------------------------"
echo
echo "If you ever happen to want to link against installed libraries"
echo "in a given directory, LIBDIR, you must either use libtool, and"
- echo "specify the full pathname of the library, or use the \`-LLIBDIR'"
+ echo "specify the full pathname of the library, or use the '-LLIBDIR'"
echo "flag during linking and do at least one of the following:"
if test -n "$shlibpath_var"; then
- echo " - add LIBDIR to the \`$shlibpath_var' environment variable"
+ echo " - add LIBDIR to the '$shlibpath_var' environment variable"
echo " during execution"
fi
if test -n "$runpath_var"; then
- echo " - add LIBDIR to the \`$runpath_var' environment variable"
+ echo " - add LIBDIR to the '$runpath_var' environment variable"
echo " during linking"
fi
if test -n "$hardcode_libdir_flag_spec"; then
libdir=LIBDIR
eval flag=\"$hardcode_libdir_flag_spec\"
- $ECHO " - use the \`$flag' linker flag"
+ $ECHO " - use the '$flag' linker flag"
fi
if test -n "$admincmds"; then
$ECHO " - have your system administrator run these commands:$admincmds"
fi
if test -f /etc/ld.so.conf; then
- echo " - have your system administrator add LIBDIR to \`/etc/ld.so.conf'"
+ echo " - have your system administrator add LIBDIR to '/etc/ld.so.conf'"
fi
echo
exit $EXIT_SUCCESS
}
-test "$opt_mode" = finish && func_mode_finish ${1+"$@"}
+test finish = "$opt_mode" && func_mode_finish ${1+"$@"}
# func_mode_install arg...
func_mode_install ()
{
- $opt_debug
+ $debug_cmd
+
# There may be an optional sh(1) argument at the beginning of
# install_prog (especially on Windows NT).
- if test "$nonopt" = "$SHELL" || test "$nonopt" = /bin/sh ||
+ if test "$SHELL" = "$nonopt" || test /bin/sh = "$nonopt" ||
# Allow the use of GNU shtool's install command.
- case $nonopt in *shtool*) :;; *) false;; esac; then
+ case $nonopt in *shtool*) :;; *) false;; esac
+ then
# Aesthetically quote it.
func_quote_for_eval "$nonopt"
install_prog="$func_quote_for_eval_result "
opts=
prev=
install_type=
- isdir=no
+ isdir=false
stripme=
no_mode=:
for arg
fi
case $arg in
- -d) isdir=yes ;;
+ -d) isdir=: ;;
-f)
if $install_cp; then :; else
prev=$arg
*)
# If the previous option needed an argument, then skip it.
if test -n "$prev"; then
- if test "x$prev" = x-m && test -n "$install_override_mode"; then
+ if test X-m = "X$prev" && test -n "$install_override_mode"; then
arg2=$install_override_mode
no_mode=false
fi
func_fatal_help "you must specify an install program"
test -n "$prev" && \
- func_fatal_help "the \`$prev' option requires an argument"
+ func_fatal_help "the '$prev' option requires an argument"
if test -n "$install_override_mode" && $no_mode; then
if $install_cp; then :; else
dest=$func_stripname_result
# Check to see that the destination is a directory.
- test -d "$dest" && isdir=yes
- if test "$isdir" = yes; then
- destdir="$dest"
+ test -d "$dest" && isdir=:
+ if $isdir; then
+ destdir=$dest
destname=
else
func_dirname_and_basename "$dest" "" "."
- destdir="$func_dirname_result"
- destname="$func_basename_result"
+ destdir=$func_dirname_result
+ destname=$func_basename_result
# Not a directory, so check to see that there is only one file specified.
set dummy $files; shift
test "$#" -gt 1 && \
- func_fatal_help "\`$dest' is not a directory"
+ func_fatal_help "'$dest' is not a directory"
fi
case $destdir in
[\\/]* | [A-Za-z]:[\\/]*) ;;
case $file in
*.lo) ;;
*)
- func_fatal_help "\`$destdir' must be an absolute directory name"
+ func_fatal_help "'$destdir' must be an absolute directory name"
;;
esac
done
# This variable tells wrapper scripts just to set variables rather
# than running their programs.
- libtool_install_magic="$magic"
+ libtool_install_magic=$magic
staticlibs=
future_libdirs=
# Check to see that this really is a libtool archive.
func_lalib_unsafe_p "$file" \
- || func_fatal_help "\`$file' is not a valid libtool archive"
+ || func_fatal_help "'$file' is not a valid libtool archive"
library_names=
old_library=
fi
func_dirname "$file" "/" ""
- dir="$func_dirname_result"
+ dir=$func_dirname_result
func_append dir "$objdir"
if test -n "$relink_command"; then
# are installed into $libdir/../bin (currently, that works fine)
# but it's something to keep an eye on.
test "$inst_prefix_dir" = "$destdir" && \
- func_fatal_error "error: cannot install \`$file' to a directory not ending in $libdir"
+ func_fatal_error "error: cannot install '$file' to a directory not ending in $libdir"
if test -n "$inst_prefix_dir"; then
# Stick the inst_prefix_dir data into the link command.
relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"`
fi
- func_warning "relinking \`$file'"
+ func_warning "relinking '$file'"
func_show_eval "$relink_command" \
- 'func_fatal_error "error: relink \`$file'\'' with the above command before installing it"'
+ 'func_fatal_error "error: relink '\''$file'\'' with the above command before installing it"'
fi
# See the names of the shared library.
set dummy $library_names; shift
if test -n "$1"; then
- realname="$1"
+ realname=$1
shift
- srcname="$realname"
- test -n "$relink_command" && srcname="$realname"T
+ srcname=$realname
+ test -n "$relink_command" && srcname=${realname}T
# Install the shared library and build the symlinks.
func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \
'exit $?'
- tstripme="$stripme"
+ tstripme=$stripme
case $host_os in
cygwin* | mingw* | pw32* | cegcc*)
case $realname in
*.dll.a)
- tstripme=""
+ tstripme=
+ ;;
+ esac
+ ;;
+ os2*)
+ case $realname in
+ *_dll.a)
+ tstripme=
;;
esac
;;
if test "$#" -gt 0; then
# Delete the old symlinks, and create new ones.
- # Try `ln -sf' first, because the `ln' binary might depend on
+ # Try 'ln -sf' first, because the 'ln' binary might depend on
# the symlink we replace! Solaris /bin/ln does not understand -f,
# so we also need to try rm && ln -s.
for linkname
fi
# Do each command in the postinstall commands.
- lib="$destdir/$realname"
+ lib=$destdir/$realname
func_execute_cmds "$postinstall_cmds" 'exit $?'
fi
# Install the pseudo-library for information purposes.
func_basename "$file"
- name="$func_basename_result"
- instname="$dir/$name"i
+ name=$func_basename_result
+ instname=$dir/${name}i
func_show_eval "$install_prog $instname $destdir/$name" 'exit $?'
# Maybe install the static library, too.
# Figure out destination file name, if it wasn't already specified.
if test -n "$destname"; then
- destfile="$destdir/$destname"
+ destfile=$destdir/$destname
else
func_basename "$file"
- destfile="$func_basename_result"
- destfile="$destdir/$destfile"
+ destfile=$func_basename_result
+ destfile=$destdir/$destfile
fi
# Deduce the name of the destination old-style object file.
staticdest=$func_lo2o_result
;;
*.$objext)
- staticdest="$destfile"
+ staticdest=$destfile
destfile=
;;
*)
- func_fatal_help "cannot copy a libtool object to \`$destfile'"
+ func_fatal_help "cannot copy a libtool object to '$destfile'"
;;
esac
func_show_eval "$install_prog $file $destfile" 'exit $?'
# Install the old object if enabled.
- if test "$build_old_libs" = yes; then
+ if test yes = "$build_old_libs"; then
# Deduce the name of the old-style object file.
func_lo2o "$file"
staticobj=$func_lo2o_result
*)
# Figure out destination file name, if it wasn't already specified.
if test -n "$destname"; then
- destfile="$destdir/$destname"
+ destfile=$destdir/$destname
else
func_basename "$file"
- destfile="$func_basename_result"
- destfile="$destdir/$destfile"
+ destfile=$func_basename_result
+ destfile=$destdir/$destfile
fi
# If the file is missing, and there is a .exe on the end, strip it
# because it is most likely a libtool script we actually want to
# install
- stripped_ext=""
+ stripped_ext=
case $file in
*.exe)
if test ! -f "$file"; then
func_stripname '' '.exe' "$file"
file=$func_stripname_result
- stripped_ext=".exe"
+ stripped_ext=.exe
fi
;;
esac
# Check the variables that should have been set.
test -z "$generated_by_libtool_version" && \
- func_fatal_error "invalid libtool wrapper script \`$wrapper'"
+ func_fatal_error "invalid libtool wrapper script '$wrapper'"
- finalize=yes
+ finalize=:
for lib in $notinst_deplibs; do
# Check to see that each library is installed.
libdir=
if test -f "$lib"; then
func_source "$lib"
fi
- libfile="$libdir/"`$ECHO "$lib" | $SED 's%^.*/%%g'` ### testsuite: skip nested quoting test
+ libfile=$libdir/`$ECHO "$lib" | $SED 's%^.*/%%g'`
if test -n "$libdir" && test ! -f "$libfile"; then
- func_warning "\`$lib' has not been installed in \`$libdir'"
- finalize=no
+ func_warning "'$lib' has not been installed in '$libdir'"
+ finalize=false
fi
done
func_source "$wrapper"
outputname=
- if test "$fast_install" = no && test -n "$relink_command"; then
+ if test no = "$fast_install" && test -n "$relink_command"; then
$opt_dry_run || {
- if test "$finalize" = yes; then
+ if $finalize; then
tmpdir=`func_mktempdir`
func_basename "$file$stripped_ext"
- file="$func_basename_result"
- outputname="$tmpdir/$file"
+ file=$func_basename_result
+ outputname=$tmpdir/$file
# Replace the output file specification.
relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'`
- $opt_silent || {
+ $opt_quiet || {
func_quote_for_expand "$relink_command"
eval "func_echo $func_quote_for_expand_result"
}
if eval "$relink_command"; then :
else
- func_error "error: relink \`$file' with the above command before installing it"
+ func_error "error: relink '$file' with the above command before installing it"
$opt_dry_run || ${RM}r "$tmpdir"
continue
fi
- file="$outputname"
+ file=$outputname
else
- func_warning "cannot relink \`$file'"
+ func_warning "cannot relink '$file'"
fi
}
else
for file in $staticlibs; do
func_basename "$file"
- name="$func_basename_result"
+ name=$func_basename_result
# Set up the ranlib parameters.
- oldlib="$destdir/$name"
+ oldlib=$destdir/$name
func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
tool_oldlib=$func_to_tool_file_result
done
test -n "$future_libdirs" && \
- func_warning "remember to run \`$progname --finish$future_libdirs'"
+ func_warning "remember to run '$progname --finish$future_libdirs'"
if test -n "$current_libdirs"; then
# Maybe just do a dry run.
$opt_dry_run && current_libdirs=" -n$current_libdirs"
- exec_cmd='$SHELL $progpath $preserve_args --finish$current_libdirs'
+ exec_cmd='$SHELL "$progpath" $preserve_args --finish$current_libdirs'
else
exit $EXIT_SUCCESS
fi
}
-test "$opt_mode" = install && func_mode_install ${1+"$@"}
+test install = "$opt_mode" && func_mode_install ${1+"$@"}
# func_generate_dlsyms outputname originator pic_p
# a dlpreopen symbol table.
func_generate_dlsyms ()
{
- $opt_debug
- my_outputname="$1"
- my_originator="$2"
- my_pic_p="${3-no}"
- my_prefix=`$ECHO "$my_originator" | sed 's%[^a-zA-Z0-9]%_%g'`
+ $debug_cmd
+
+ my_outputname=$1
+ my_originator=$2
+ my_pic_p=${3-false}
+ my_prefix=`$ECHO "$my_originator" | $SED 's%[^a-zA-Z0-9]%_%g'`
my_dlsyms=
- if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
+ if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
if test -n "$NM" && test -n "$global_symbol_pipe"; then
- my_dlsyms="${my_outputname}S.c"
+ my_dlsyms=${my_outputname}S.c
else
func_error "not configured to extract global symbols from dlpreopened files"
fi
"") ;;
*.c)
# Discover the nlist of each of the dlfiles.
- nlist="$output_objdir/${my_outputname}.nm"
+ nlist=$output_objdir/$my_outputname.nm
func_show_eval "$RM $nlist ${nlist}S ${nlist}T"
func_verbose "creating $output_objdir/$my_dlsyms"
$opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\
-/* $my_dlsyms - symbol resolution table for \`$my_outputname' dlsym emulation. */
-/* Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION */
+/* $my_dlsyms - symbol resolution table for '$my_outputname' dlsym emulation. */
+/* Generated by $PROGRAM (GNU $PACKAGE) $VERSION */
#ifdef __cplusplus
extern \"C\" {
#endif
-#if defined(__GNUC__) && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4))
+#if defined __GNUC__ && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4))
#pragma GCC diagnostic ignored \"-Wstrict-prototypes\"
#endif
/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */
-#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE)
-/* DATA imports from DLLs on WIN32 con't be const, because runtime
+#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
+/* DATA imports from DLLs on WIN32 can't be const, because runtime
relocations are performed -- see ld's documentation on pseudo-relocs. */
# define LT_DLSYM_CONST
-#elif defined(__osf__)
+#elif defined __osf__
/* This system does not cope well with relocations in const data. */
# define LT_DLSYM_CONST
#else
# define LT_DLSYM_CONST const
#endif
+#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0)
+
/* External symbol declarations for the compiler. */\
"
- if test "$dlself" = yes; then
- func_verbose "generating symbol list for \`$output'"
+ if test yes = "$dlself"; then
+ func_verbose "generating symbol list for '$output'"
$opt_dry_run || echo ': @PROGRAM@ ' > "$nlist"
progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP`
for progfile in $progfiles; do
func_to_tool_file "$progfile" func_convert_file_msys_to_w32
- func_verbose "extracting global C symbols from \`$func_to_tool_file_result'"
+ func_verbose "extracting global C symbols from '$func_to_tool_file_result'"
$opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'"
done
# Prepare the list of exported symbols
if test -z "$export_symbols"; then
- export_symbols="$output_objdir/$outputname.exp"
+ export_symbols=$output_objdir/$outputname.exp
$opt_dry_run || {
$RM $export_symbols
- eval "${SED} -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
+ eval "$SED -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
case $host in
*cygwin* | *mingw* | *cegcc* )
eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
}
else
$opt_dry_run || {
- eval "${SED} -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"'
+ eval "$SED -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"'
eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T'
eval '$MV "$nlist"T "$nlist"'
case $host in
fi
for dlprefile in $dlprefiles; do
- func_verbose "extracting global C symbols from \`$dlprefile'"
+ func_verbose "extracting global C symbols from '$dlprefile'"
func_basename "$dlprefile"
- name="$func_basename_result"
+ name=$func_basename_result
case $host in
*cygwin* | *mingw* | *cegcc* )
# if an import library, we need to obtain dlname
if func_win32_import_lib_p "$dlprefile"; then
func_tr_sh "$dlprefile"
eval "curr_lafile=\$libfile_$func_tr_sh_result"
- dlprefile_dlbasename=""
+ dlprefile_dlbasename=
if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then
# Use subshell, to avoid clobbering current variable values
dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"`
- if test -n "$dlprefile_dlname" ; then
+ if test -n "$dlprefile_dlname"; then
func_basename "$dlprefile_dlname"
- dlprefile_dlbasename="$func_basename_result"
+ dlprefile_dlbasename=$func_basename_result
else
# no lafile. user explicitly requested -dlpreopen <import library>.
$sharedlib_from_linklib_cmd "$dlprefile"
fi
fi
$opt_dry_run || {
- if test -n "$dlprefile_dlbasename" ; then
+ if test -n "$dlprefile_dlbasename"; then
eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"'
else
func_warning "Could not compute DLL name from $name"
echo '/* NONE */' >> "$output_objdir/$my_dlsyms"
fi
+ func_show_eval '$RM "${nlist}I"'
+ if test -n "$global_symbol_to_import"; then
+ eval "$global_symbol_to_import"' < "$nlist"S > "$nlist"I'
+ fi
+
echo >> "$output_objdir/$my_dlsyms" "\
/* The mapping between symbol names and symbols. */
void *address;
} lt_dlsymlist;
extern LT_DLSYM_CONST lt_dlsymlist
-lt_${my_prefix}_LTX_preloaded_symbols[];
+lt_${my_prefix}_LTX_preloaded_symbols[];\
+"
+
+ if test -s "$nlist"I; then
+ echo >> "$output_objdir/$my_dlsyms" "\
+static void lt_syminit(void)
+{
+ LT_DLSYM_CONST lt_dlsymlist *symbol = lt_${my_prefix}_LTX_preloaded_symbols;
+ for (; symbol->name; ++symbol)
+ {"
+ $SED 's/.*/ if (STREQ (symbol->name, \"&\")) symbol->address = (void *) \&&;/' < "$nlist"I >> "$output_objdir/$my_dlsyms"
+ echo >> "$output_objdir/$my_dlsyms" "\
+ }
+}"
+ fi
+ echo >> "$output_objdir/$my_dlsyms" "\
LT_DLSYM_CONST lt_dlsymlist
lt_${my_prefix}_LTX_preloaded_symbols[] =
-{\
- { \"$my_originator\", (void *) 0 },"
+{ {\"$my_originator\", (void *) 0},"
+
+ if test -s "$nlist"I; then
+ echo >> "$output_objdir/$my_dlsyms" "\
+ {\"@INIT@\", (void *) <_syminit},"
+ fi
case $need_lib_prefix in
no)
*-*-hpux*)
pic_flag_for_symtable=" $pic_flag" ;;
*)
- if test "X$my_pic_p" != Xno; then
- pic_flag_for_symtable=" $pic_flag"
- fi
+ $my_pic_p && pic_flag_for_symtable=" $pic_flag"
;;
esac
;;
func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?'
# Clean up the generated files.
- func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T"'
+ func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T" "${nlist}I"'
# Transform the symbol file into the correct name.
- symfileobj="$output_objdir/${my_outputname}S.$objext"
+ symfileobj=$output_objdir/${my_outputname}S.$objext
case $host in
*cygwin* | *mingw* | *cegcc* )
if test -f "$output_objdir/$my_outputname.def"; then
esac
;;
*)
- func_fatal_error "unknown suffix for \`$my_dlsyms'"
+ func_fatal_error "unknown suffix for '$my_dlsyms'"
;;
esac
else
fi
}
+# func_cygming_gnu_implib_p ARG
+# This predicate returns with zero status (TRUE) if
+# ARG is a GNU/binutils-style import library. Returns
+# with nonzero status (FALSE) otherwise.
+func_cygming_gnu_implib_p ()
+{
+ $debug_cmd
+
+ func_to_tool_file "$1" func_convert_file_msys_to_w32
+ func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'`
+ test -n "$func_cygming_gnu_implib_tmp"
+}
+
+# func_cygming_ms_implib_p ARG
+# This predicate returns with zero status (TRUE) if
+# ARG is an MS-style import library. Returns
+# with nonzero status (FALSE) otherwise.
+func_cygming_ms_implib_p ()
+{
+ $debug_cmd
+
+ func_to_tool_file "$1" func_convert_file_msys_to_w32
+ func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'`
+ test -n "$func_cygming_ms_implib_tmp"
+}
+
# func_win32_libid arg
# return the library type of file 'arg'
#
# Despite the name, also deal with 64 bit binaries.
func_win32_libid ()
{
- $opt_debug
- win32_libid_type="unknown"
+ $debug_cmd
+
+ win32_libid_type=unknown
win32_fileres=`file -L $1 2>/dev/null`
case $win32_fileres in
*ar\ archive\ import\ library*) # definitely import
# Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD.
if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null |
$EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then
- func_to_tool_file "$1" func_convert_file_msys_to_w32
- win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" |
- $SED -n -e '
+ case $nm_interface in
+ "MS dumpbin")
+ if func_cygming_ms_implib_p "$1" ||
+ func_cygming_gnu_implib_p "$1"
+ then
+ win32_nmres=import
+ else
+ win32_nmres=
+ fi
+ ;;
+ *)
+ func_to_tool_file "$1" func_convert_file_msys_to_w32
+ win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" |
+ $SED -n -e '
1,100{
/ I /{
- s,.*,import,
+ s|.*|import|
p
q
}
}'`
+ ;;
+ esac
case $win32_nmres in
import*) win32_libid_type="x86 archive import";;
*) win32_libid_type="x86 archive static";;
# $sharedlib_from_linklib_result
func_cygming_dll_for_implib ()
{
- $opt_debug
+ $debug_cmd
+
sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"`
}
# specified import library.
func_cygming_dll_for_implib_fallback_core ()
{
- $opt_debug
+ $debug_cmd
+
match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"`
$OBJDUMP -s --section "$1" "$2" 2>/dev/null |
$SED '/^Contents of section '"$match_literal"':/{
/./p' |
# we now have a list, one entry per line, of the stringified
# contents of the appropriate section of all members of the
- # archive which possess that section. Heuristic: eliminate
- # all those which have a first or second character that is
+ # archive that possess that section. Heuristic: eliminate
+ # all those that have a first or second character that is
# a '.' (that is, objdump's representation of an unprintable
# character.) This should work for all archives with less than
# 0x302f exports -- but will fail for DLLs whose name actually
$SED -e '/^\./d;/^.\./d;q'
}
-# func_cygming_gnu_implib_p ARG
-# This predicate returns with zero status (TRUE) if
-# ARG is a GNU/binutils-style import library. Returns
-# with nonzero status (FALSE) otherwise.
-func_cygming_gnu_implib_p ()
-{
- $opt_debug
- func_to_tool_file "$1" func_convert_file_msys_to_w32
- func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'`
- test -n "$func_cygming_gnu_implib_tmp"
-}
-
-# func_cygming_ms_implib_p ARG
-# This predicate returns with zero status (TRUE) if
-# ARG is an MS-style import library. Returns
-# with nonzero status (FALSE) otherwise.
-func_cygming_ms_implib_p ()
-{
- $opt_debug
- func_to_tool_file "$1" func_convert_file_msys_to_w32
- func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'`
- test -n "$func_cygming_ms_implib_tmp"
-}
-
# func_cygming_dll_for_implib_fallback ARG
# Platform-specific function to extract the
# name of the DLL associated with the specified
# $sharedlib_from_linklib_result
func_cygming_dll_for_implib_fallback ()
{
- $opt_debug
- if func_cygming_gnu_implib_p "$1" ; then
+ $debug_cmd
+
+ if func_cygming_gnu_implib_p "$1"; then
# binutils import library
sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"`
- elif func_cygming_ms_implib_p "$1" ; then
+ elif func_cygming_ms_implib_p "$1"; then
# ms-generated import library
sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"`
else
# unknown
- sharedlib_from_linklib_result=""
+ sharedlib_from_linklib_result=
fi
}
# func_extract_an_archive dir oldlib
func_extract_an_archive ()
{
- $opt_debug
- f_ex_an_ar_dir="$1"; shift
- f_ex_an_ar_oldlib="$1"
- if test "$lock_old_archive_extraction" = yes; then
+ $debug_cmd
+
+ f_ex_an_ar_dir=$1; shift
+ f_ex_an_ar_oldlib=$1
+ if test yes = "$lock_old_archive_extraction"; then
lockfile=$f_ex_an_ar_oldlib.lock
until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
func_echo "Waiting for $lockfile to be removed"
fi
func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \
'stat=$?; rm -f "$lockfile"; exit $stat'
- if test "$lock_old_archive_extraction" = yes; then
+ if test yes = "$lock_old_archive_extraction"; then
$opt_dry_run || rm -f "$lockfile"
fi
if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then
# func_extract_archives gentop oldlib ...
func_extract_archives ()
{
- $opt_debug
- my_gentop="$1"; shift
+ $debug_cmd
+
+ my_gentop=$1; shift
my_oldlibs=${1+"$@"}
- my_oldobjs=""
- my_xlib=""
- my_xabs=""
- my_xdir=""
+ my_oldobjs=
+ my_xlib=
+ my_xabs=
+ my_xdir=
for my_xlib in $my_oldlibs; do
# Extract the objects.
case $my_xlib in
- [\\/]* | [A-Za-z]:[\\/]*) my_xabs="$my_xlib" ;;
+ [\\/]* | [A-Za-z]:[\\/]*) my_xabs=$my_xlib ;;
*) my_xabs=`pwd`"/$my_xlib" ;;
esac
func_basename "$my_xlib"
- my_xlib="$func_basename_result"
+ my_xlib=$func_basename_result
my_xlib_u=$my_xlib
while :; do
case " $extracted_archives " in
esac
done
extracted_archives="$extracted_archives $my_xlib_u"
- my_xdir="$my_gentop/$my_xlib_u"
+ my_xdir=$my_gentop/$my_xlib_u
func_mkdir_p "$my_xdir"
cd $my_xdir || exit $?
darwin_archive=$my_xabs
darwin_curdir=`pwd`
- darwin_base_archive=`basename "$darwin_archive"`
+ func_basename "$darwin_archive"
+ darwin_base_archive=$func_basename_result
darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true`
if test -n "$darwin_arches"; then
darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'`
darwin_arch=
func_verbose "$darwin_base_archive has multiple architectures $darwin_arches"
- for darwin_arch in $darwin_arches ; do
- func_mkdir_p "unfat-$$/${darwin_base_archive}-${darwin_arch}"
- $LIPO -thin $darwin_arch -output "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" "${darwin_archive}"
- cd "unfat-$$/${darwin_base_archive}-${darwin_arch}"
- func_extract_an_archive "`pwd`" "${darwin_base_archive}"
+ for darwin_arch in $darwin_arches; do
+ func_mkdir_p "unfat-$$/$darwin_base_archive-$darwin_arch"
+ $LIPO -thin $darwin_arch -output "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" "$darwin_archive"
+ cd "unfat-$$/$darwin_base_archive-$darwin_arch"
+ func_extract_an_archive "`pwd`" "$darwin_base_archive"
cd "$darwin_curdir"
- $RM "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}"
+ $RM "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive"
done # $darwin_arches
## Okay now we've a bunch of thin objects, gotta fatten them up :)
- darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$basename" | sort -u`
+ darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$sed_basename" | sort -u`
darwin_file=
darwin_files=
for darwin_file in $darwin_filelist; do
my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP`
done
- func_extract_archives_result="$my_oldobjs"
+ func_extract_archives_result=$my_oldobjs
}
#
# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR
# variable will take. If 'yes', then the emitted script
-# will assume that the directory in which it is stored is
+# will assume that the directory where it is stored is
# the $objdir directory. This is a cygwin/mingw-specific
# behavior.
func_emit_wrapper ()
#! $SHELL
# $output - temporary wrapper script for $objdir/$outputname
-# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
+# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
#
# The $output program cannot be directly executed until all the libtool
# libraries that it depends on are installed.
# Very basic option parsing. These options are (a) specific to
# the libtool wrapper, (b) are identical between the wrapper
-# /script/ and the wrapper /executable/ which is used only on
+# /script/ and the wrapper /executable/ that is used only on
# windows platforms, and (c) all begin with the string "--lt-"
-# (application programs are unlikely to have options which match
+# (application programs are unlikely to have options that match
# this pattern).
#
# There are only two supported options: --lt-debug and
# Print the debug banner immediately:
if test -n \"\$lt_option_debug\"; then
- echo \"${outputname}:${output}:\${LINENO}: libtool wrapper (GNU $PACKAGE$TIMESTAMP) $VERSION\" 1>&2
+ echo \"$outputname:$output:\$LINENO: libtool wrapper (GNU $PACKAGE) $VERSION\" 1>&2
fi
}
lt_dump_args_N=1;
for lt_arg
do
- \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[\$lt_dump_args_N]: \$lt_arg\"
+ \$ECHO \"$outputname:$output:\$LINENO: newargv[\$lt_dump_args_N]: \$lt_arg\"
lt_dump_args_N=\`expr \$lt_dump_args_N + 1\`
done
}
*-*-mingw | *-*-os2* | *-cegcc*)
$ECHO "\
if test -n \"\$lt_option_debug\"; then
- \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir\\\\\$program\" 1>&2
+ \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir\\\\\$program\" 1>&2
func_lt_dump_args \${1+\"\$@\"} 1>&2
fi
exec \"\$progdir\\\\\$program\" \${1+\"\$@\"}
*)
$ECHO "\
if test -n \"\$lt_option_debug\"; then
- \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir/\$program\" 1>&2
+ \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir/\$program\" 1>&2
func_lt_dump_args \${1+\"\$@\"} 1>&2
fi
exec \"\$progdir/\$program\" \${1+\"\$@\"}
test -n \"\$absdir\" && thisdir=\"\$absdir\"
"
- if test "$fast_install" = yes; then
+ if test yes = "$fast_install"; then
$ECHO "\
program=lt-'$outputname'$exeext
progdir=\"\$thisdir/$objdir\"
if test ! -f \"\$progdir/\$program\" ||
- { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | ${SED} 1q\`; \\
+ { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | $SED 1q\`; \\
test \"X\$file\" != \"X\$progdir/\$program\"; }; then
file=\"\$\$-\$program\"
if test -n \"\$relink_command\"; then
if relink_command_output=\`eval \$relink_command 2>&1\`; then :
else
- $ECHO \"\$relink_command_output\" >&2
+ \$ECHO \"\$relink_command_output\" >&2
$RM \"\$progdir/\$file\"
exit 1
fi
fi
# Export our shlibpath_var if we have one.
- if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
+ if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
$ECHO "\
# Add our own library path to $shlibpath_var
$shlibpath_var=\"$temp_rpath\$$shlibpath_var\"
fi
else
# The program doesn't exist.
- \$ECHO \"\$0: error: \\\`\$progdir/\$program' does not exist\" 1>&2
+ \$ECHO \"\$0: error: '\$progdir/\$program' does not exist\" 1>&2
\$ECHO \"This script is just a wrapper for \$program.\" 1>&2
\$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2
exit 1
cat <<EOF
/* $cwrappersource - temporary wrapper executable for $objdir/$outputname
- Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
+ Generated by $PROGRAM (GNU $PACKAGE) $VERSION
The $output program cannot be directly executed until all the libtool
libraries that it depends on are installed.
#include <fcntl.h>
#include <sys/stat.h>
+#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0)
+
/* declarations of non-ANSI functions */
-#if defined(__MINGW32__)
+#if defined __MINGW32__
# ifdef __STRICT_ANSI__
int _putenv (const char *);
# endif
-#elif defined(__CYGWIN__)
+#elif defined __CYGWIN__
# ifdef __STRICT_ANSI__
char *realpath (const char *, char *);
int putenv (char *);
int setenv (const char *, const char *, int);
# endif
-/* #elif defined (other platforms) ... */
+/* #elif defined other_platform || defined ... */
#endif
/* portability defines, excluding path handling macros */
-#if defined(_MSC_VER)
+#if defined _MSC_VER
# define setmode _setmode
# define stat _stat
# define chmod _chmod
# define getcwd _getcwd
# define putenv _putenv
# define S_IXUSR _S_IEXEC
-# ifndef _INTPTR_T_DEFINED
-# define _INTPTR_T_DEFINED
-# define intptr_t int
-# endif
-#elif defined(__MINGW32__)
+#elif defined __MINGW32__
# define setmode _setmode
# define stat _stat
# define chmod _chmod
# define getcwd _getcwd
# define putenv _putenv
-#elif defined(__CYGWIN__)
+#elif defined __CYGWIN__
# define HAVE_SETENV
# define FOPEN_WB "wb"
-/* #elif defined (other platforms) ... */
+/* #elif defined other platforms ... */
#endif
-#if defined(PATH_MAX)
+#if defined PATH_MAX
# define LT_PATHMAX PATH_MAX
-#elif defined(MAXPATHLEN)
+#elif defined MAXPATHLEN
# define LT_PATHMAX MAXPATHLEN
#else
# define LT_PATHMAX 1024
# define PATH_SEPARATOR ':'
#endif
-#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \
- defined (__OS2__)
+#if defined _WIN32 || defined __MSDOS__ || defined __DJGPP__ || \
+ defined __OS2__
# define HAVE_DOS_BASED_FILE_SYSTEM
# define FOPEN_WB "wb"
# ifndef DIR_SEPARATOR_2
#define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type)))
#define XFREE(stale) do { \
- if (stale) { free ((void *) stale); stale = 0; } \
+ if (stale) { free (stale); stale = 0; } \
} while (0)
-#if defined(LT_DEBUGWRAPPER)
+#if defined LT_DEBUGWRAPPER
static int lt_debug = 1;
#else
static int lt_debug = 0;
EOF
cat <<EOF
-volatile const char * MAGIC_EXE = "$magic_exe";
+#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
+# define externally_visible volatile
+#else
+# define externally_visible __attribute__((externally_visible)) volatile
+#endif
+externally_visible const char * MAGIC_EXE = "$magic_exe";
const char * LIB_PATH_VARNAME = "$shlibpath_var";
EOF
- if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
+ if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
func_to_host_path "$temp_rpath"
cat <<EOF
const char * LIB_PATH_VALUE = "$func_to_host_path_result";
EOF
fi
- if test "$fast_install" = yes; then
+ if test yes = "$fast_install"; then
cat <<EOF
const char * TARGET_PROGRAM_NAME = "lt-$outputname"; /* hopefully, no .exe */
EOF
char *actual_cwrapper_name;
char *target_name;
char *lt_argv_zero;
- intptr_t rval = 127;
+ int rval = 127;
int i;
program_name = (char *) xstrdup (base_name (argv[0]));
- newargz = XMALLOC (char *, argc + 1);
+ newargz = XMALLOC (char *, (size_t) argc + 1);
/* very simple arg parsing; don't want to rely on getopt
* also, copy all non cwrapper options to newargz, except
newargc=0;
for (i = 1; i < argc; i++)
{
- if (strcmp (argv[i], dumpscript_opt) == 0)
+ if (STREQ (argv[i], dumpscript_opt))
{
EOF
- case "$host" in
+ case $host in
*mingw* | *cygwin* )
# make stdout use "unix" line endings
echo " setmode(1,_O_BINARY);"
lt_dump_script (stdout);
return 0;
}
- if (strcmp (argv[i], debug_opt) == 0)
+ if (STREQ (argv[i], debug_opt))
{
lt_debug = 1;
continue;
}
- if (strcmp (argv[i], ltwrapper_option_prefix) == 0)
+ if (STREQ (argv[i], ltwrapper_option_prefix))
{
/* however, if there is an option in the LTWRAPPER_OPTION_PREFIX
namespace, but it is not one of the ones we know about and
EOF
cat <<EOF
/* The GNU banner must be the first non-error debug message */
- lt_debugprintf (__FILE__, __LINE__, "libtool wrapper (GNU $PACKAGE$TIMESTAMP) $VERSION\n");
+ lt_debugprintf (__FILE__, __LINE__, "libtool wrapper (GNU $PACKAGE) $VERSION\n");
EOF
cat <<"EOF"
lt_debugprintf (__FILE__, __LINE__, "(main) argv[0]: %s\n", argv[0]);
cat <<"EOF"
/* execv doesn't actually work on mingw as expected on unix */
newargz = prepare_spawn (newargz);
- rval = _spawnv (_P_WAIT, lt_argv_zero, (const char * const *) newargz);
+ rval = (int) _spawnv (_P_WAIT, lt_argv_zero, (const char * const *) newargz);
if (rval == -1)
{
/* failed to start process */
{
const char *base;
-#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
+#if defined HAVE_DOS_BASED_FILE_SYSTEM
/* Skip over the disk name in MSDOS pathnames. */
if (isalpha ((unsigned char) name[0]) && name[1] == ':')
name += 2;
const char *p_next;
/* static buffer for getcwd */
char tmp[LT_PATHMAX + 1];
- int tmp_len;
+ size_t tmp_len;
char *concat_name;
lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n",
return NULL;
/* Absolute path? */
-#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
+#if defined HAVE_DOS_BASED_FILE_SYSTEM
if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':')
{
concat_name = xstrdup (wrapper);
return concat_name;
XFREE (concat_name);
}
-#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
+#if defined HAVE_DOS_BASED_FILE_SYSTEM
}
#endif
for (q = p; *q; q++)
if (IS_PATH_SEPARATOR (*q))
break;
- p_len = q - p;
+ p_len = (size_t) (q - p);
p_next = (*q == '\0' ? q : q + 1);
if (p_len == 0)
{
if (patlen <= len)
{
str += len - patlen;
- if (strcmp (str, pat) == 0)
+ if (STREQ (str, pat))
*str = '\0';
}
return str;
char *str = xstrdup (value);
setenv (name, str, 1);
#else
- int len = strlen (name) + 1 + strlen (value) + 1;
+ size_t len = strlen (name) + 1 + strlen (value) + 1;
char *str = XMALLOC (char, len);
sprintf (str, "%s=%s", name, value);
if (putenv (str) != EXIT_SUCCESS)
char *new_value;
if (orig_value && *orig_value)
{
- int orig_value_len = strlen (orig_value);
- int add_len = strlen (add);
+ size_t orig_value_len = strlen (orig_value);
+ size_t add_len = strlen (add);
new_value = XMALLOC (char, add_len + orig_value_len + 1);
if (to_end)
{
{
char *new_value = lt_extend_str (getenv (name), value, 0);
/* some systems can't cope with a ':'-terminated path #' */
- int len = strlen (new_value);
- while (((len = strlen (new_value)) > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
+ size_t len = strlen (new_value);
+ while ((len > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
{
- new_value[len-1] = '\0';
+ new_value[--len] = '\0';
}
lt_setenv (name, new_value);
XFREE (new_value);
# True if ARG is an import lib, as indicated by $file_magic_cmd
func_win32_import_lib_p ()
{
- $opt_debug
+ $debug_cmd
+
case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in
*import*) : ;;
*) false ;;
esac
}
+# func_suncc_cstd_abi
+# !!ONLY CALL THIS FOR SUN CC AFTER $compile_command IS FULLY EXPANDED!!
+# Several compiler flags select an ABI that is incompatible with the
+# Cstd library. Avoid specifying it if any are in CXXFLAGS.
+func_suncc_cstd_abi ()
+{
+ $debug_cmd
+
+ case " $compile_command " in
+ *" -compat=g "*|*\ -std=c++[0-9][0-9]\ *|*" -library=stdcxx4 "*|*" -library=stlport4 "*)
+ suncc_use_cstd_abi=no
+ ;;
+ *)
+ suncc_use_cstd_abi=yes
+ ;;
+ esac
+}
+
# func_mode_link arg...
func_mode_link ()
{
- $opt_debug
+ $debug_cmd
+
case $host in
*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
# It is impossible to link a dll without this setting, and
# we shouldn't force the makefile maintainer to figure out
- # which system we are compiling for in order to pass an extra
+ # what system we are compiling for in order to pass an extra
# flag for every libtool invocation.
# allow_undefined=no
# FIXME: Unfortunately, there are problems with the above when trying
- # to make a dll which has undefined symbols, in which case not
+ # to make a dll that has undefined symbols, in which case not
# even a static library is built. For now, we need to specify
# -no-undefined on the libtool link line when we can be certain
# that all symbols are satisfied, otherwise we get a static library.
module=no
no_install=no
objs=
+ os2dllname=
non_pic_objects=
precious_files_regex=
prefer_static_libs=no
- preload=no
+ preload=false
prev=
prevarg=
release=
vinfo=
vinfo_number=no
weak_libs=
- single_module="${wl}-single_module"
+ single_module=$wl-single_module
func_infer_tag $base_compile
# We need to know -static, to get the right output filenames.
do
case $arg in
-shared)
- test "$build_libtool_libs" != yes && \
- func_fatal_configuration "can not build a shared library"
+ test yes != "$build_libtool_libs" \
+ && func_fatal_configuration "cannot build a shared library"
build_old_libs=no
break
;;
-all-static | -static | -static-libtool-libs)
case $arg in
-all-static)
- if test "$build_libtool_libs" = yes && test -z "$link_static_flag"; then
+ if test yes = "$build_libtool_libs" && test -z "$link_static_flag"; then
func_warning "complete static linking is impossible in this configuration"
fi
if test -n "$link_static_flag"; then
# Go through the arguments, transforming them on the way.
while test "$#" -gt 0; do
- arg="$1"
+ arg=$1
shift
func_quote_for_eval "$arg"
qarg=$func_quote_for_eval_unquoted_result
case $prev in
bindir)
- bindir="$arg"
+ bindir=$arg
prev=
continue
;;
dlfiles|dlprefiles)
- if test "$preload" = no; then
+ $preload || {
# Add the symbol object into the linking commands.
func_append compile_command " @SYMFILE@"
func_append finalize_command " @SYMFILE@"
- preload=yes
- fi
+ preload=:
+ }
case $arg in
*.la | *.lo) ;; # We handle these cases below.
force)
- if test "$dlself" = no; then
+ if test no = "$dlself"; then
dlself=needless
export_dynamic=yes
fi
continue
;;
self)
- if test "$prev" = dlprefiles; then
+ if test dlprefiles = "$prev"; then
dlself=yes
- elif test "$prev" = dlfiles && test "$dlopen_self" != yes; then
+ elif test dlfiles = "$prev" && test yes != "$dlopen_self"; then
dlself=yes
else
dlself=needless
continue
;;
*)
- if test "$prev" = dlfiles; then
+ if test dlfiles = "$prev"; then
func_append dlfiles " $arg"
else
func_append dlprefiles " $arg"
esac
;;
expsyms)
- export_symbols="$arg"
+ export_symbols=$arg
test -f "$arg" \
- || func_fatal_error "symbol file \`$arg' does not exist"
+ || func_fatal_error "symbol file '$arg' does not exist"
prev=
continue
;;
expsyms_regex)
- export_symbols_regex="$arg"
+ export_symbols_regex=$arg
prev=
continue
;;
continue
;;
inst_prefix)
- inst_prefix_dir="$arg"
+ inst_prefix_dir=$arg
+ prev=
+ continue
+ ;;
+ mllvm)
+ # Clang does not use LLVM to link, so we can simply discard any
+ # '-mllvm $arg' options when doing the link step.
prev=
continue
;;
if test -z "$pic_object" ||
test -z "$non_pic_object" ||
- test "$pic_object" = none &&
- test "$non_pic_object" = none; then
- func_fatal_error "cannot find name of object for \`$arg'"
+ test none = "$pic_object" &&
+ test none = "$non_pic_object"; then
+ func_fatal_error "cannot find name of object for '$arg'"
fi
# Extract subdirectory from the argument.
func_dirname "$arg" "/" ""
- xdir="$func_dirname_result"
+ xdir=$func_dirname_result
- if test "$pic_object" != none; then
+ if test none != "$pic_object"; then
# Prepend the subdirectory the object is found in.
- pic_object="$xdir$pic_object"
+ pic_object=$xdir$pic_object
- if test "$prev" = dlfiles; then
- if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
+ if test dlfiles = "$prev"; then
+ if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then
func_append dlfiles " $pic_object"
prev=
continue
fi
# CHECK ME: I think I busted this. -Ossama
- if test "$prev" = dlprefiles; then
+ if test dlprefiles = "$prev"; then
# Preload the old-style object.
func_append dlprefiles " $pic_object"
prev=
# A PIC object.
func_append libobjs " $pic_object"
- arg="$pic_object"
+ arg=$pic_object
fi
# Non-PIC object.
- if test "$non_pic_object" != none; then
+ if test none != "$non_pic_object"; then
# Prepend the subdirectory the object is found in.
- non_pic_object="$xdir$non_pic_object"
+ non_pic_object=$xdir$non_pic_object
# A standard non-PIC object
func_append non_pic_objects " $non_pic_object"
- if test -z "$pic_object" || test "$pic_object" = none ; then
- arg="$non_pic_object"
+ if test -z "$pic_object" || test none = "$pic_object"; then
+ arg=$non_pic_object
fi
else
# If the PIC object exists, use it instead.
# $xdir was prepended to $pic_object above.
- non_pic_object="$pic_object"
+ non_pic_object=$pic_object
func_append non_pic_objects " $non_pic_object"
fi
else
if $opt_dry_run; then
# Extract subdirectory from the argument.
func_dirname "$arg" "/" ""
- xdir="$func_dirname_result"
+ xdir=$func_dirname_result
func_lo2o "$arg"
pic_object=$xdir$objdir/$func_lo2o_result
func_append libobjs " $pic_object"
func_append non_pic_objects " $non_pic_object"
else
- func_fatal_error "\`$arg' is not a valid libtool object"
+ func_fatal_error "'$arg' is not a valid libtool object"
fi
fi
done
else
- func_fatal_error "link input file \`$arg' does not exist"
+ func_fatal_error "link input file '$arg' does not exist"
fi
arg=$save_arg
prev=
continue
;;
+ os2dllname)
+ os2dllname=$arg
+ prev=
+ continue
+ ;;
precious_regex)
- precious_files_regex="$arg"
+ precious_files_regex=$arg
prev=
continue
;;
release)
- release="-$arg"
+ release=-$arg
prev=
continue
;;
func_fatal_error "only absolute run-paths are allowed"
;;
esac
- if test "$prev" = rpath; then
+ if test rpath = "$prev"; then
case "$rpath " in
*" $arg "*) ;;
*) func_append rpath " $arg" ;;
continue
;;
shrext)
- shrext_cmds="$arg"
+ shrext_cmds=$arg
prev=
continue
;;
esac
fi # test -n "$prev"
- prevarg="$arg"
+ prevarg=$arg
case $arg in
-all-static)
-allow-undefined)
# FIXME: remove this flag sometime in the future.
- func_fatal_error "\`-allow-undefined' must not be used because it is the default"
+ func_fatal_error "'-allow-undefined' must not be used because it is the default"
;;
-avoid-version)
if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
func_fatal_error "more than one -exported-symbols argument is not allowed"
fi
- if test "X$arg" = "X-export-symbols"; then
+ if test X-export-symbols = "X$arg"; then
prev=expsyms
else
prev=expsyms_regex
func_stripname "-L" '' "$arg"
if test -z "$func_stripname_result"; then
if test "$#" -gt 0; then
- func_fatal_error "require no space between \`-L' and \`$1'"
+ func_fatal_error "require no space between '-L' and '$1'"
else
- func_fatal_error "need path for \`-L' option"
+ func_fatal_error "need path for '-L' option"
fi
fi
func_resolve_sysroot "$func_stripname_result"
*)
absdir=`cd "$dir" && pwd`
test -z "$absdir" && \
- func_fatal_error "cannot determine absolute directory name of \`$dir'"
- dir="$absdir"
+ func_fatal_error "cannot determine absolute directory name of '$dir'"
+ dir=$absdir
;;
esac
case "$deplibs " in
;;
-l*)
- if test "X$arg" = "X-lc" || test "X$arg" = "X-lm"; then
+ if test X-lc = "X$arg" || test X-lm = "X$arg"; then
case $host in
*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*)
# These systems don't actually have a C or math library (as such)
;;
*-*-os2*)
# These systems don't actually have a C library (as such)
- test "X$arg" = "X-lc" && continue
+ test X-lc = "X$arg" && continue
;;
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
+ *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*)
# Do not include libc due to us having libc/libc_r.
- test "X$arg" = "X-lc" && continue
+ test X-lc = "X$arg" && continue
;;
*-*-rhapsody* | *-*-darwin1.[012])
# Rhapsody C and math libraries are in the System framework
;;
*-*-sco3.2v5* | *-*-sco5v6*)
# Causes problems with __ctype
- test "X$arg" = "X-lc" && continue
+ test X-lc = "X$arg" && continue
;;
*-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
# Compiler inserts libc in the correct place for threads to work
- test "X$arg" = "X-lc" && continue
+ test X-lc = "X$arg" && continue
;;
esac
- elif test "X$arg" = "X-lc_r"; then
+ elif test X-lc_r = "X$arg"; then
case $host in
- *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
+ *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*)
# Do not include libc_r directly, use -pthread flag.
continue
;;
continue
;;
+ -mllvm)
+ prev=mllvm
+ continue
+ ;;
+
-module)
module=yes
continue
;;
-multi_module)
- single_module="${wl}-multi_module"
+ single_module=$wl-multi_module
continue
;;
*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
# The PATH hackery in wrapper scripts is required on Windows
# and Darwin in order for the loader to find any dlls it needs.
- func_warning "\`-no-install' is ignored for $host"
- func_warning "assuming \`-no-fast-install' instead"
+ func_warning "'-no-install' is ignored for $host"
+ func_warning "assuming '-no-fast-install' instead"
fast_install=no
;;
*) no_install=yes ;;
continue
;;
+ -os2dllname)
+ prev=os2dllname
+ continue
+ ;;
+
-o) prev=output ;;
-precious-files-regex)
func_stripname '-Wc,' '' "$arg"
args=$func_stripname_result
arg=
- save_ifs="$IFS"; IFS=','
+ save_ifs=$IFS; IFS=,
for flag in $args; do
- IFS="$save_ifs"
+ IFS=$save_ifs
func_quote_for_eval "$flag"
func_append arg " $func_quote_for_eval_result"
func_append compiler_flags " $func_quote_for_eval_result"
done
- IFS="$save_ifs"
+ IFS=$save_ifs
func_stripname ' ' '' "$arg"
arg=$func_stripname_result
;;
func_stripname '-Wl,' '' "$arg"
args=$func_stripname_result
arg=
- save_ifs="$IFS"; IFS=','
+ save_ifs=$IFS; IFS=,
for flag in $args; do
- IFS="$save_ifs"
+ IFS=$save_ifs
func_quote_for_eval "$flag"
func_append arg " $wl$func_quote_for_eval_result"
func_append compiler_flags " $wl$func_quote_for_eval_result"
func_append linker_flags " $func_quote_for_eval_result"
done
- IFS="$save_ifs"
+ IFS=$save_ifs
func_stripname ' ' '' "$arg"
arg=$func_stripname_result
;;
# -msg_* for osf cc
-msg_*)
func_quote_for_eval "$arg"
- arg="$func_quote_for_eval_result"
+ arg=$func_quote_for_eval_result
;;
# Flags to be passed through unchanged, with rationale:
# -m*, -t[45]*, -txscale* architecture-specific flags for GCC
# -F/path path to uninstalled frameworks, gcc on darwin
# -p, -pg, --coverage, -fprofile-* profiling flags for GCC
+ # -fstack-protector* stack protector flags for GCC
# @file GCC response files
# -tp=* Portland pgcc target processor selection
# --sysroot=* for sysroot support
- # -O*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
+ # -O*, -g*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
+ # -stdlib=* select c++ std lib with clang
-64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
-t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
- -O*|-flto*|-fwhopr*|-fuse-linker-plugin)
+ -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*)
func_quote_for_eval "$arg"
- arg="$func_quote_for_eval_result"
+ arg=$func_quote_for_eval_result
func_append compile_command " $arg"
func_append finalize_command " $arg"
func_append compiler_flags " $arg"
continue
;;
+ -Z*)
+ if test os2 = "`expr $host : '.*\(os2\)'`"; then
+ # OS/2 uses -Zxxx to specify OS/2-specific options
+ compiler_flags="$compiler_flags $arg"
+ func_append compile_command " $arg"
+ func_append finalize_command " $arg"
+ case $arg in
+ -Zlinker | -Zstack)
+ prev=xcompiler
+ ;;
+ esac
+ continue
+ else
+ # Otherwise treat like 'Some other compiler flag' below
+ func_quote_for_eval "$arg"
+ arg=$func_quote_for_eval_result
+ fi
+ ;;
+
# Some other compiler flag.
-* | +*)
func_quote_for_eval "$arg"
- arg="$func_quote_for_eval_result"
+ arg=$func_quote_for_eval_result
;;
*.$objext)
if test -z "$pic_object" ||
test -z "$non_pic_object" ||
- test "$pic_object" = none &&
- test "$non_pic_object" = none; then
- func_fatal_error "cannot find name of object for \`$arg'"
+ test none = "$pic_object" &&
+ test none = "$non_pic_object"; then
+ func_fatal_error "cannot find name of object for '$arg'"
fi
# Extract subdirectory from the argument.
func_dirname "$arg" "/" ""
- xdir="$func_dirname_result"
+ xdir=$func_dirname_result
- if test "$pic_object" != none; then
+ test none = "$pic_object" || {
# Prepend the subdirectory the object is found in.
- pic_object="$xdir$pic_object"
+ pic_object=$xdir$pic_object
- if test "$prev" = dlfiles; then
- if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
+ if test dlfiles = "$prev"; then
+ if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then
func_append dlfiles " $pic_object"
prev=
continue
fi
# CHECK ME: I think I busted this. -Ossama
- if test "$prev" = dlprefiles; then
+ if test dlprefiles = "$prev"; then
# Preload the old-style object.
func_append dlprefiles " $pic_object"
prev=
# A PIC object.
func_append libobjs " $pic_object"
- arg="$pic_object"
- fi
+ arg=$pic_object
+ }
# Non-PIC object.
- if test "$non_pic_object" != none; then
+ if test none != "$non_pic_object"; then
# Prepend the subdirectory the object is found in.
- non_pic_object="$xdir$non_pic_object"
+ non_pic_object=$xdir$non_pic_object
# A standard non-PIC object
func_append non_pic_objects " $non_pic_object"
- if test -z "$pic_object" || test "$pic_object" = none ; then
- arg="$non_pic_object"
+ if test -z "$pic_object" || test none = "$pic_object"; then
+ arg=$non_pic_object
fi
else
# If the PIC object exists, use it instead.
# $xdir was prepended to $pic_object above.
- non_pic_object="$pic_object"
+ non_pic_object=$pic_object
func_append non_pic_objects " $non_pic_object"
fi
else
if $opt_dry_run; then
# Extract subdirectory from the argument.
func_dirname "$arg" "/" ""
- xdir="$func_dirname_result"
+ xdir=$func_dirname_result
func_lo2o "$arg"
pic_object=$xdir$objdir/$func_lo2o_result
func_append libobjs " $pic_object"
func_append non_pic_objects " $non_pic_object"
else
- func_fatal_error "\`$arg' is not a valid libtool object"
+ func_fatal_error "'$arg' is not a valid libtool object"
fi
fi
;;
# A libtool-controlled library.
func_resolve_sysroot "$arg"
- if test "$prev" = dlfiles; then
+ if test dlfiles = "$prev"; then
# This library was specified with -dlopen.
func_append dlfiles " $func_resolve_sysroot_result"
prev=
- elif test "$prev" = dlprefiles; then
+ elif test dlprefiles = "$prev"; then
# The library was specified with -dlpreopen.
func_append dlprefiles " $func_resolve_sysroot_result"
prev=
# Unknown arguments in both finalize_command and compile_command need
# to be aesthetically quoted because they are evaled later.
func_quote_for_eval "$arg"
- arg="$func_quote_for_eval_result"
+ arg=$func_quote_for_eval_result
;;
esac # arg
done # argument parsing loop
test -n "$prev" && \
- func_fatal_help "the \`$prevarg' option requires an argument"
+ func_fatal_help "the '$prevarg' option requires an argument"
- if test "$export_dynamic" = yes && test -n "$export_dynamic_flag_spec"; then
+ if test yes = "$export_dynamic" && test -n "$export_dynamic_flag_spec"; then
eval arg=\"$export_dynamic_flag_spec\"
func_append compile_command " $arg"
func_append finalize_command " $arg"
oldlibs=
# calculate the name of the file, without its directory
func_basename "$output"
- outputname="$func_basename_result"
- libobjs_save="$libobjs"
+ outputname=$func_basename_result
+ libobjs_save=$libobjs
if test -n "$shlibpath_var"; then
# get the directories listed in $shlibpath_var
- eval shlib_search_path=\`\$ECHO \"\${$shlibpath_var}\" \| \$SED \'s/:/ /g\'\`
+ eval shlib_search_path=\`\$ECHO \"\$$shlibpath_var\" \| \$SED \'s/:/ /g\'\`
else
shlib_search_path=
fi
eval sys_lib_search_path=\"$sys_lib_search_path_spec\"
eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\"
+ # Definition is injected by LT_CONFIG during libtool generation.
+ func_munge_path_list sys_lib_dlsearch_path "$LT_SYS_LIBRARY_PATH"
+
func_dirname "$output" "/" ""
- output_objdir="$func_dirname_result$objdir"
+ output_objdir=$func_dirname_result$objdir
func_to_tool_file "$output_objdir/"
tool_output_objdir=$func_to_tool_file_result
# Create the object directory.
# Find all interdependent deplibs by searching for libraries
# that are linked more than once (e.g. -la -lb -la)
for deplib in $deplibs; do
- if $opt_preserve_dup_deps ; then
+ if $opt_preserve_dup_deps; then
case "$libs " in
*" $deplib "*) func_append specialdeplibs " $deplib" ;;
esac
func_append libs " $deplib"
done
- if test "$linkmode" = lib; then
+ if test lib = "$linkmode"; then
libs="$predeps $libs $compiler_lib_search_path $postdeps"
# Compute libraries that are listed more than once in $predeps
case $file in
*.la) ;;
*)
- func_fatal_help "libraries can \`-dlopen' only libtool libraries: $file"
+ func_fatal_help "libraries can '-dlopen' only libtool libraries: $file"
;;
esac
done
prog)
compile_deplibs=
finalize_deplibs=
- alldeplibs=no
+ alldeplibs=false
newdlfiles=
newdlprefiles=
passes="conv scan dlopen dlpreopen link"
for pass in $passes; do
# The preopen pass in lib mode reverses $deplibs; put it back here
# so that -L comes before libs that need it for instance...
- if test "$linkmode,$pass" = "lib,link"; then
+ if test lib,link = "$linkmode,$pass"; then
## FIXME: Find the place where the list is rebuilt in the wrong
## order, and fix it there properly
tmp_deplibs=
for deplib in $deplibs; do
tmp_deplibs="$deplib $tmp_deplibs"
done
- deplibs="$tmp_deplibs"
+ deplibs=$tmp_deplibs
fi
- if test "$linkmode,$pass" = "lib,link" ||
- test "$linkmode,$pass" = "prog,scan"; then
- libs="$deplibs"
+ if test lib,link = "$linkmode,$pass" ||
+ test prog,scan = "$linkmode,$pass"; then
+ libs=$deplibs
deplibs=
fi
- if test "$linkmode" = prog; then
+ if test prog = "$linkmode"; then
case $pass in
- dlopen) libs="$dlfiles" ;;
- dlpreopen) libs="$dlprefiles" ;;
+ dlopen) libs=$dlfiles ;;
+ dlpreopen) libs=$dlprefiles ;;
link) libs="$deplibs %DEPLIBS% $dependency_libs" ;;
esac
fi
- if test "$linkmode,$pass" = "lib,dlpreopen"; then
+ if test lib,dlpreopen = "$linkmode,$pass"; then
# Collect and forward deplibs of preopened libtool libs
for lib in $dlprefiles; do
# Ignore non-libtool-libs
esac
done
done
- libs="$dlprefiles"
+ libs=$dlprefiles
fi
- if test "$pass" = dlopen; then
+ if test dlopen = "$pass"; then
# Collect dlpreopened libraries
- save_deplibs="$deplibs"
+ save_deplibs=$deplibs
deplibs=
fi
for deplib in $libs; do
lib=
- found=no
+ found=false
case $deplib in
-mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
|-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
- if test "$linkmode,$pass" = "prog,link"; then
+ if test prog,link = "$linkmode,$pass"; then
compile_deplibs="$deplib $compile_deplibs"
finalize_deplibs="$deplib $finalize_deplibs"
else
func_append compiler_flags " $deplib"
- if test "$linkmode" = lib ; then
+ if test lib = "$linkmode"; then
case "$new_inherited_linker_flags " in
*" $deplib "*) ;;
* ) func_append new_inherited_linker_flags " $deplib" ;;
continue
;;
-l*)
- if test "$linkmode" != lib && test "$linkmode" != prog; then
- func_warning "\`-l' is ignored for archives/objects"
+ if test lib != "$linkmode" && test prog != "$linkmode"; then
+ func_warning "'-l' is ignored for archives/objects"
continue
fi
func_stripname '-l' '' "$deplib"
name=$func_stripname_result
- if test "$linkmode" = lib; then
+ if test lib = "$linkmode"; then
searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path"
else
searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path"
for searchdir in $searchdirs; do
for search_ext in .la $std_shrext .so .a; do
# Search the libtool library
- lib="$searchdir/lib${name}${search_ext}"
+ lib=$searchdir/lib$name$search_ext
if test -f "$lib"; then
- if test "$search_ext" = ".la"; then
- found=yes
+ if test .la = "$search_ext"; then
+ found=:
else
- found=no
+ found=false
fi
break 2
fi
done
done
- if test "$found" != yes; then
- # deplib doesn't seem to be a libtool library
- if test "$linkmode,$pass" = "prog,link"; then
- compile_deplibs="$deplib $compile_deplibs"
- finalize_deplibs="$deplib $finalize_deplibs"
- else
- deplibs="$deplib $deplibs"
- test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
- fi
- continue
- else # deplib is a libtool library
+ if $found; then
+ # deplib is a libtool library
# If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib,
# We need to do some special things here, and not later.
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+ if test yes = "$allow_libtool_libs_with_static_runtimes"; then
case " $predeps $postdeps " in
*" $deplib "*)
if func_lalib_p "$lib"; then
old_library=
func_source "$lib"
for l in $old_library $library_names; do
- ll="$l"
+ ll=$l
done
- if test "X$ll" = "X$old_library" ; then # only static version available
- found=no
+ if test "X$ll" = "X$old_library"; then # only static version available
+ found=false
func_dirname "$lib" "" "."
- ladir="$func_dirname_result"
+ ladir=$func_dirname_result
lib=$ladir/$old_library
- if test "$linkmode,$pass" = "prog,link"; then
+ if test prog,link = "$linkmode,$pass"; then
compile_deplibs="$deplib $compile_deplibs"
finalize_deplibs="$deplib $finalize_deplibs"
else
deplibs="$deplib $deplibs"
- test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
+ test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs"
fi
continue
fi
*) ;;
esac
fi
+ else
+ # deplib doesn't seem to be a libtool library
+ if test prog,link = "$linkmode,$pass"; then
+ compile_deplibs="$deplib $compile_deplibs"
+ finalize_deplibs="$deplib $finalize_deplibs"
+ else
+ deplibs="$deplib $deplibs"
+ test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs"
+ fi
+ continue
fi
;; # -l
*.ltframework)
- if test "$linkmode,$pass" = "prog,link"; then
+ if test prog,link = "$linkmode,$pass"; then
compile_deplibs="$deplib $compile_deplibs"
finalize_deplibs="$deplib $finalize_deplibs"
else
deplibs="$deplib $deplibs"
- if test "$linkmode" = lib ; then
+ if test lib = "$linkmode"; then
case "$new_inherited_linker_flags " in
*" $deplib "*) ;;
* ) func_append new_inherited_linker_flags " $deplib" ;;
case $linkmode in
lib)
deplibs="$deplib $deplibs"
- test "$pass" = conv && continue
+ test conv = "$pass" && continue
newdependency_libs="$deplib $newdependency_libs"
func_stripname '-L' '' "$deplib"
func_resolve_sysroot "$func_stripname_result"
func_append newlib_search_path " $func_resolve_sysroot_result"
;;
prog)
- if test "$pass" = conv; then
+ if test conv = "$pass"; then
deplibs="$deplib $deplibs"
continue
fi
- if test "$pass" = scan; then
+ if test scan = "$pass"; then
deplibs="$deplib $deplibs"
else
compile_deplibs="$deplib $compile_deplibs"
func_append newlib_search_path " $func_resolve_sysroot_result"
;;
*)
- func_warning "\`-L' is ignored for archives/objects"
+ func_warning "'-L' is ignored for archives/objects"
;;
esac # linkmode
continue
;; # -L
-R*)
- if test "$pass" = link; then
+ if test link = "$pass"; then
func_stripname '-R' '' "$deplib"
func_resolve_sysroot "$func_stripname_result"
dir=$func_resolve_sysroot_result
lib=$func_resolve_sysroot_result
;;
*.$libext)
- if test "$pass" = conv; then
+ if test conv = "$pass"; then
deplibs="$deplib $deplibs"
continue
fi
case " $dlpreconveniencelibs " in
*" $deplib "*) ;;
*)
- valid_a_lib=no
+ valid_a_lib=false
case $deplibs_check_method in
match_pattern*)
set dummy $deplibs_check_method; shift
match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \
| $EGREP "$match_pattern_regex" > /dev/null; then
- valid_a_lib=yes
+ valid_a_lib=:
fi
;;
pass_all)
- valid_a_lib=yes
+ valid_a_lib=:
;;
esac
- if test "$valid_a_lib" != yes; then
+ if $valid_a_lib; then
+ echo
+ $ECHO "*** Warning: Linking the shared library $output against the"
+ $ECHO "*** static library $deplib is not portable!"
+ deplibs="$deplib $deplibs"
+ else
echo
$ECHO "*** Warning: Trying to link with static lib archive $deplib."
echo "*** I have the capability to make that library automatically link in when"
echo "*** shared version of the library, which you do not appear to have"
echo "*** because the file extensions .$libext of this argument makes me believe"
echo "*** that it is just a static archive that I should not use here."
- else
- echo
- $ECHO "*** Warning: Linking the shared library $output against the"
- $ECHO "*** static library $deplib is not portable!"
- deplibs="$deplib $deplibs"
fi
;;
esac
continue
;;
prog)
- if test "$pass" != link; then
+ if test link != "$pass"; then
deplibs="$deplib $deplibs"
else
compile_deplibs="$deplib $compile_deplibs"
esac # linkmode
;; # *.$libext
*.lo | *.$objext)
- if test "$pass" = conv; then
+ if test conv = "$pass"; then
deplibs="$deplib $deplibs"
- elif test "$linkmode" = prog; then
- if test "$pass" = dlpreopen || test "$dlopen_support" != yes || test "$build_libtool_libs" = no; then
+ elif test prog = "$linkmode"; then
+ if test dlpreopen = "$pass" || test yes != "$dlopen_support" || test no = "$build_libtool_libs"; then
# If there is no dlopen support or we're linking statically,
# we need to preload.
func_append newdlprefiles " $deplib"
continue
;;
%DEPLIBS%)
- alldeplibs=yes
+ alldeplibs=:
continue
;;
esac # case $deplib
- if test "$found" = yes || test -f "$lib"; then :
- else
- func_fatal_error "cannot find the library \`$lib' or unhandled argument \`$deplib'"
- fi
+ $found || test -f "$lib" \
+ || func_fatal_error "cannot find the library '$lib' or unhandled argument '$deplib'"
# Check to see that this really is a libtool archive.
func_lalib_unsafe_p "$lib" \
- || func_fatal_error "\`$lib' is not a valid libtool archive"
+ || func_fatal_error "'$lib' is not a valid libtool archive"
func_dirname "$lib" "" "."
- ladir="$func_dirname_result"
+ ladir=$func_dirname_result
dlname=
dlopen=
done
fi
dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
- if test "$linkmode,$pass" = "lib,link" ||
- test "$linkmode,$pass" = "prog,scan" ||
- { test "$linkmode" != prog && test "$linkmode" != lib; }; then
+ if test lib,link = "$linkmode,$pass" ||
+ test prog,scan = "$linkmode,$pass" ||
+ { test prog != "$linkmode" && test lib != "$linkmode"; }; then
test -n "$dlopen" && func_append dlfiles " $dlopen"
test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen"
fi
- if test "$pass" = conv; then
+ if test conv = "$pass"; then
# Only check for convenience libraries
deplibs="$lib $deplibs"
if test -z "$libdir"; then
if test -z "$old_library"; then
- func_fatal_error "cannot find name of link library for \`$lib'"
+ func_fatal_error "cannot find name of link library for '$lib'"
fi
# It is a libtool convenience library, so add in its objects.
func_append convenience " $ladir/$objdir/$old_library"
func_append old_convenience " $ladir/$objdir/$old_library"
- elif test "$linkmode" != prog && test "$linkmode" != lib; then
- func_fatal_error "\`$lib' is not a convenience library"
+ elif test prog != "$linkmode" && test lib != "$linkmode"; then
+ func_fatal_error "'$lib' is not a convenience library"
fi
tmp_libs=
for deplib in $dependency_libs; do
deplibs="$deplib $deplibs"
- if $opt_preserve_dup_deps ; then
+ if $opt_preserve_dup_deps; then
case "$tmp_libs " in
*" $deplib "*) func_append specialdeplibs " $deplib" ;;
esac
# Get the name of the library we link against.
linklib=
if test -n "$old_library" &&
- { test "$prefer_static_libs" = yes ||
- test "$prefer_static_libs,$installed" = "built,no"; }; then
+ { test yes = "$prefer_static_libs" ||
+ test built,no = "$prefer_static_libs,$installed"; }; then
linklib=$old_library
else
for l in $old_library $library_names; do
- linklib="$l"
+ linklib=$l
done
fi
if test -z "$linklib"; then
- func_fatal_error "cannot find name of link library for \`$lib'"
+ func_fatal_error "cannot find name of link library for '$lib'"
fi
# This library was specified with -dlopen.
- if test "$pass" = dlopen; then
- if test -z "$libdir"; then
- func_fatal_error "cannot -dlopen a convenience library: \`$lib'"
- fi
+ if test dlopen = "$pass"; then
+ test -z "$libdir" \
+ && func_fatal_error "cannot -dlopen a convenience library: '$lib'"
if test -z "$dlname" ||
- test "$dlopen_support" != yes ||
- test "$build_libtool_libs" = no; then
+ test yes != "$dlopen_support" ||
+ test no = "$build_libtool_libs"
+ then
# If there is no dlname, no dlopen support or we're linking
# statically, we need to preload. We also need to preload any
# dependent libraries so libltdl's deplib preloader doesn't
# We need an absolute path.
case $ladir in
- [\\/]* | [A-Za-z]:[\\/]*) abs_ladir="$ladir" ;;
+ [\\/]* | [A-Za-z]:[\\/]*) abs_ladir=$ladir ;;
*)
abs_ladir=`cd "$ladir" && pwd`
if test -z "$abs_ladir"; then
- func_warning "cannot determine absolute directory name of \`$ladir'"
+ func_warning "cannot determine absolute directory name of '$ladir'"
func_warning "passing it literally to the linker, although it might fail"
- abs_ladir="$ladir"
+ abs_ladir=$ladir
fi
;;
esac
func_basename "$lib"
- laname="$func_basename_result"
+ laname=$func_basename_result
# Find the relevant object directory and library name.
- if test "X$installed" = Xyes; then
+ if test yes = "$installed"; then
if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then
- func_warning "library \`$lib' was moved."
- dir="$ladir"
- absdir="$abs_ladir"
- libdir="$abs_ladir"
+ func_warning "library '$lib' was moved."
+ dir=$ladir
+ absdir=$abs_ladir
+ libdir=$abs_ladir
else
- dir="$lt_sysroot$libdir"
- absdir="$lt_sysroot$libdir"
+ dir=$lt_sysroot$libdir
+ absdir=$lt_sysroot$libdir
fi
- test "X$hardcode_automatic" = Xyes && avoidtemprpath=yes
+ test yes = "$hardcode_automatic" && avoidtemprpath=yes
else
if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then
- dir="$ladir"
- absdir="$abs_ladir"
+ dir=$ladir
+ absdir=$abs_ladir
# Remove this search path later
func_append notinst_path " $abs_ladir"
else
- dir="$ladir/$objdir"
- absdir="$abs_ladir/$objdir"
+ dir=$ladir/$objdir
+ absdir=$abs_ladir/$objdir
# Remove this search path later
func_append notinst_path " $abs_ladir"
fi
name=$func_stripname_result
# This library was specified with -dlpreopen.
- if test "$pass" = dlpreopen; then
- if test -z "$libdir" && test "$linkmode" = prog; then
- func_fatal_error "only libraries may -dlpreopen a convenience library: \`$lib'"
+ if test dlpreopen = "$pass"; then
+ if test -z "$libdir" && test prog = "$linkmode"; then
+ func_fatal_error "only libraries may -dlpreopen a convenience library: '$lib'"
fi
- case "$host" in
+ case $host in
# special handling for platforms with PE-DLLs.
*cygwin* | *mingw* | *cegcc* )
# Linker will automatically link against shared library if both
if test -z "$libdir"; then
# Link the convenience library
- if test "$linkmode" = lib; then
+ if test lib = "$linkmode"; then
deplibs="$dir/$old_library $deplibs"
- elif test "$linkmode,$pass" = "prog,link"; then
+ elif test prog,link = "$linkmode,$pass"; then
compile_deplibs="$dir/$old_library $compile_deplibs"
finalize_deplibs="$dir/$old_library $finalize_deplibs"
else
fi
- if test "$linkmode" = prog && test "$pass" != link; then
+ if test prog = "$linkmode" && test link != "$pass"; then
func_append newlib_search_path " $ladir"
deplibs="$lib $deplibs"
- linkalldeplibs=no
- if test "$link_all_deplibs" != no || test -z "$library_names" ||
- test "$build_libtool_libs" = no; then
- linkalldeplibs=yes
+ linkalldeplibs=false
+ if test no != "$link_all_deplibs" || test -z "$library_names" ||
+ test no = "$build_libtool_libs"; then
+ linkalldeplibs=:
fi
tmp_libs=
;;
esac
# Need to link against all dependency_libs?
- if test "$linkalldeplibs" = yes; then
+ if $linkalldeplibs; then
deplibs="$deplib $deplibs"
else
# Need to hardcode shared library paths
# or/and link against static libraries
newdependency_libs="$deplib $newdependency_libs"
fi
- if $opt_preserve_dup_deps ; then
+ if $opt_preserve_dup_deps; then
case "$tmp_libs " in
*" $deplib "*) func_append specialdeplibs " $deplib" ;;
esac
continue
fi # $linkmode = prog...
- if test "$linkmode,$pass" = "prog,link"; then
+ if test prog,link = "$linkmode,$pass"; then
if test -n "$library_names" &&
- { { test "$prefer_static_libs" = no ||
- test "$prefer_static_libs,$installed" = "built,yes"; } ||
+ { { test no = "$prefer_static_libs" ||
+ test built,yes = "$prefer_static_libs,$installed"; } ||
test -z "$old_library"; }; then
# We need to hardcode the library path
- if test -n "$shlibpath_var" && test -z "$avoidtemprpath" ; then
+ if test -n "$shlibpath_var" && test -z "$avoidtemprpath"; then
# Make sure the rpath contains only unique directories.
- case "$temp_rpath:" in
+ case $temp_rpath: in
*"$absdir:"*) ;;
*) func_append temp_rpath "$absdir:" ;;
esac
esac
fi # $linkmode,$pass = prog,link...
- if test "$alldeplibs" = yes &&
- { test "$deplibs_check_method" = pass_all ||
- { test "$build_libtool_libs" = yes &&
+ if $alldeplibs &&
+ { test pass_all = "$deplibs_check_method" ||
+ { test yes = "$build_libtool_libs" &&
test -n "$library_names"; }; }; then
# We only need to search for static libraries
continue
link_static=no # Whether the deplib will be linked statically
use_static_libs=$prefer_static_libs
- if test "$use_static_libs" = built && test "$installed" = yes; then
+ if test built = "$use_static_libs" && test yes = "$installed"; then
use_static_libs=no
fi
if test -n "$library_names" &&
- { test "$use_static_libs" = no || test -z "$old_library"; }; then
+ { test no = "$use_static_libs" || test -z "$old_library"; }; then
case $host in
- *cygwin* | *mingw* | *cegcc*)
+ *cygwin* | *mingw* | *cegcc* | *os2*)
# No point in relinking DLLs because paths are not encoded
func_append notinst_deplibs " $lib"
need_relink=no
;;
*)
- if test "$installed" = no; then
+ if test no = "$installed"; then
func_append notinst_deplibs " $lib"
need_relink=yes
fi
# Warn about portability, can't link against -module's on some
# systems (darwin). Don't bleat about dlopened modules though!
- dlopenmodule=""
+ dlopenmodule=
for dlpremoduletest in $dlprefiles; do
if test "X$dlpremoduletest" = "X$lib"; then
- dlopenmodule="$dlpremoduletest"
+ dlopenmodule=$dlpremoduletest
break
fi
done
- if test -z "$dlopenmodule" && test "$shouldnotlink" = yes && test "$pass" = link; then
+ if test -z "$dlopenmodule" && test yes = "$shouldnotlink" && test link = "$pass"; then
echo
- if test "$linkmode" = prog; then
+ if test prog = "$linkmode"; then
$ECHO "*** Warning: Linking the executable $output against the loadable module"
else
$ECHO "*** Warning: Linking the shared library $output against the loadable module"
fi
$ECHO "*** $linklib is not portable!"
fi
- if test "$linkmode" = lib &&
- test "$hardcode_into_libs" = yes; then
+ if test lib = "$linkmode" &&
+ test yes = "$hardcode_into_libs"; then
# Hardcode the library path.
# Skip directories that are in the system default run-time
# search path.
# figure out the soname
set dummy $library_names
shift
- realname="$1"
+ realname=$1
shift
libname=`eval "\\$ECHO \"$libname_spec\""`
# use dlname if we got it. it's perfectly good, no?
if test -n "$dlname"; then
- soname="$dlname"
+ soname=$dlname
elif test -n "$soname_spec"; then
# bleh windows
case $host in
- *cygwin* | mingw* | *cegcc*)
+ *cygwin* | mingw* | *cegcc* | *os2*)
func_arith $current - $age
major=$func_arith_result
- versuffix="-$major"
+ versuffix=-$major
;;
esac
eval soname=\"$soname_spec\"
else
- soname="$realname"
+ soname=$realname
fi
# Make a new name for the extract_expsyms_cmds to use
- soroot="$soname"
+ soroot=$soname
func_basename "$soroot"
- soname="$func_basename_result"
+ soname=$func_basename_result
func_stripname 'lib' '.dll' "$soname"
newlib=libimp-$func_stripname_result.a
# If the library has no export list, then create one now
if test -f "$output_objdir/$soname-def"; then :
else
- func_verbose "extracting exported symbol list from \`$soname'"
+ func_verbose "extracting exported symbol list from '$soname'"
func_execute_cmds "$extract_expsyms_cmds" 'exit $?'
fi
# Create $newlib
if test -f "$output_objdir/$newlib"; then :; else
- func_verbose "generating import library for \`$soname'"
+ func_verbose "generating import library for '$soname'"
func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?'
fi
# make sure the library variables are pointing to the new library
linklib=$newlib
fi # test -n "$old_archive_from_expsyms_cmds"
- if test "$linkmode" = prog || test "$opt_mode" != relink; then
+ if test prog = "$linkmode" || test relink != "$opt_mode"; then
add_shlibpath=
add_dir=
add=
lib_linked=yes
case $hardcode_action in
immediate | unsupported)
- if test "$hardcode_direct" = no; then
- add="$dir/$linklib"
+ if test no = "$hardcode_direct"; then
+ add=$dir/$linklib
case $host in
- *-*-sco3.2v5.0.[024]*) add_dir="-L$dir" ;;
- *-*-sysv4*uw2*) add_dir="-L$dir" ;;
+ *-*-sco3.2v5.0.[024]*) add_dir=-L$dir ;;
+ *-*-sysv4*uw2*) add_dir=-L$dir ;;
*-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \
- *-*-unixware7*) add_dir="-L$dir" ;;
+ *-*-unixware7*) add_dir=-L$dir ;;
*-*-darwin* )
- # if the lib is a (non-dlopened) module then we can not
+ # if the lib is a (non-dlopened) module then we cannot
# link against it, someone is ignoring the earlier warnings
if /usr/bin/file -L $add 2> /dev/null |
- $GREP ": [^:]* bundle" >/dev/null ; then
+ $GREP ": [^:]* bundle" >/dev/null; then
if test "X$dlopenmodule" != "X$lib"; then
$ECHO "*** Warning: lib $linklib is a module, not a shared library"
- if test -z "$old_library" ; then
+ if test -z "$old_library"; then
echo
echo "*** And there doesn't seem to be a static archive available"
echo "*** The link will probably fail, sorry"
else
- add="$dir/$old_library"
+ add=$dir/$old_library
fi
elif test -n "$old_library"; then
- add="$dir/$old_library"
+ add=$dir/$old_library
fi
fi
esac
- elif test "$hardcode_minus_L" = no; then
+ elif test no = "$hardcode_minus_L"; then
case $host in
- *-*-sunos*) add_shlibpath="$dir" ;;
+ *-*-sunos*) add_shlibpath=$dir ;;
esac
- add_dir="-L$dir"
- add="-l$name"
- elif test "$hardcode_shlibpath_var" = no; then
- add_shlibpath="$dir"
- add="-l$name"
+ add_dir=-L$dir
+ add=-l$name
+ elif test no = "$hardcode_shlibpath_var"; then
+ add_shlibpath=$dir
+ add=-l$name
else
lib_linked=no
fi
;;
relink)
- if test "$hardcode_direct" = yes &&
- test "$hardcode_direct_absolute" = no; then
- add="$dir/$linklib"
- elif test "$hardcode_minus_L" = yes; then
- add_dir="-L$absdir"
+ if test yes = "$hardcode_direct" &&
+ test no = "$hardcode_direct_absolute"; then
+ add=$dir/$linklib
+ elif test yes = "$hardcode_minus_L"; then
+ add_dir=-L$absdir
# Try looking first in the location we're being installed to.
if test -n "$inst_prefix_dir"; then
case $libdir in
;;
esac
fi
- add="-l$name"
- elif test "$hardcode_shlibpath_var" = yes; then
- add_shlibpath="$dir"
- add="-l$name"
+ add=-l$name
+ elif test yes = "$hardcode_shlibpath_var"; then
+ add_shlibpath=$dir
+ add=-l$name
else
lib_linked=no
fi
*) lib_linked=no ;;
esac
- if test "$lib_linked" != yes; then
+ if test yes != "$lib_linked"; then
func_fatal_configuration "unsupported hardcode properties"
fi
*) func_append compile_shlibpath "$add_shlibpath:" ;;
esac
fi
- if test "$linkmode" = prog; then
+ if test prog = "$linkmode"; then
test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs"
test -n "$add" && compile_deplibs="$add $compile_deplibs"
else
test -n "$add_dir" && deplibs="$add_dir $deplibs"
test -n "$add" && deplibs="$add $deplibs"
- if test "$hardcode_direct" != yes &&
- test "$hardcode_minus_L" != yes &&
- test "$hardcode_shlibpath_var" = yes; then
+ if test yes != "$hardcode_direct" &&
+ test yes != "$hardcode_minus_L" &&
+ test yes = "$hardcode_shlibpath_var"; then
case :$finalize_shlibpath: in
*":$libdir:"*) ;;
*) func_append finalize_shlibpath "$libdir:" ;;
fi
fi
- if test "$linkmode" = prog || test "$opt_mode" = relink; then
+ if test prog = "$linkmode" || test relink = "$opt_mode"; then
add_shlibpath=
add_dir=
add=
# Finalize command for both is simple: just hardcode it.
- if test "$hardcode_direct" = yes &&
- test "$hardcode_direct_absolute" = no; then
- add="$libdir/$linklib"
- elif test "$hardcode_minus_L" = yes; then
- add_dir="-L$libdir"
- add="-l$name"
- elif test "$hardcode_shlibpath_var" = yes; then
+ if test yes = "$hardcode_direct" &&
+ test no = "$hardcode_direct_absolute"; then
+ add=$libdir/$linklib
+ elif test yes = "$hardcode_minus_L"; then
+ add_dir=-L$libdir
+ add=-l$name
+ elif test yes = "$hardcode_shlibpath_var"; then
case :$finalize_shlibpath: in
*":$libdir:"*) ;;
*) func_append finalize_shlibpath "$libdir:" ;;
esac
- add="-l$name"
- elif test "$hardcode_automatic" = yes; then
+ add=-l$name
+ elif test yes = "$hardcode_automatic"; then
if test -n "$inst_prefix_dir" &&
- test -f "$inst_prefix_dir$libdir/$linklib" ; then
- add="$inst_prefix_dir$libdir/$linklib"
+ test -f "$inst_prefix_dir$libdir/$linklib"; then
+ add=$inst_prefix_dir$libdir/$linklib
else
- add="$libdir/$linklib"
+ add=$libdir/$linklib
fi
else
# We cannot seem to hardcode it, guess we'll fake it.
- add_dir="-L$libdir"
+ add_dir=-L$libdir
# Try looking first in the location we're being installed to.
if test -n "$inst_prefix_dir"; then
case $libdir in
;;
esac
fi
- add="-l$name"
+ add=-l$name
fi
- if test "$linkmode" = prog; then
+ if test prog = "$linkmode"; then
test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs"
test -n "$add" && finalize_deplibs="$add $finalize_deplibs"
else
test -n "$add" && deplibs="$add $deplibs"
fi
fi
- elif test "$linkmode" = prog; then
+ elif test prog = "$linkmode"; then
# Here we assume that one of hardcode_direct or hardcode_minus_L
# is not unsupported. This is valid on all known static and
# shared platforms.
- if test "$hardcode_direct" != unsupported; then
- test -n "$old_library" && linklib="$old_library"
+ if test unsupported != "$hardcode_direct"; then
+ test -n "$old_library" && linklib=$old_library
compile_deplibs="$dir/$linklib $compile_deplibs"
finalize_deplibs="$dir/$linklib $finalize_deplibs"
else
compile_deplibs="-l$name -L$dir $compile_deplibs"
finalize_deplibs="-l$name -L$dir $finalize_deplibs"
fi
- elif test "$build_libtool_libs" = yes; then
+ elif test yes = "$build_libtool_libs"; then
# Not a shared library
- if test "$deplibs_check_method" != pass_all; then
+ if test pass_all != "$deplibs_check_method"; then
# We're trying link a shared library against a static one
# but the system doesn't support it.
# Just print a warning and add the library to dependency_libs so
# that the program can be linked against the static library.
echo
- $ECHO "*** Warning: This system can not link to static lib archive $lib."
+ $ECHO "*** Warning: This system cannot link to static lib archive $lib."
echo "*** I have the capability to make that library automatically link in when"
echo "*** you link to this library. But I can only do this if you have a"
echo "*** shared version of the library, which you do not appear to have."
- if test "$module" = yes; then
+ if test yes = "$module"; then
echo "*** But as you try to build a module library, libtool will still create "
echo "*** a static module, that should work as long as the dlopening application"
echo "*** is linked with the -dlopen flag to resolve symbols at runtime."
if test -z "$global_symbol_pipe"; then
echo
echo "*** However, this would only work if libtool was able to extract symbol"
- echo "*** lists from a program, using \`nm' or equivalent, but libtool could"
+ echo "*** lists from a program, using 'nm' or equivalent, but libtool could"
echo "*** not find such a program. So, this module is probably useless."
- echo "*** \`nm' from GNU binutils and a full rebuild may help."
+ echo "*** 'nm' from GNU binutils and a full rebuild may help."
fi
- if test "$build_old_libs" = no; then
+ if test no = "$build_old_libs"; then
build_libtool_libs=module
build_old_libs=yes
else
fi
fi # link shared/static library?
- if test "$linkmode" = lib; then
+ if test lib = "$linkmode"; then
if test -n "$dependency_libs" &&
- { test "$hardcode_into_libs" != yes ||
- test "$build_old_libs" = yes ||
- test "$link_static" = yes; }; then
+ { test yes != "$hardcode_into_libs" ||
+ test yes = "$build_old_libs" ||
+ test yes = "$link_static"; }; then
# Extract -R from dependency_libs
temp_deplibs=
for libdir in $dependency_libs; do
*) func_append temp_deplibs " $libdir";;
esac
done
- dependency_libs="$temp_deplibs"
+ dependency_libs=$temp_deplibs
fi
func_append newlib_search_path " $absdir"
# Link against this library
- test "$link_static" = no && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
+ test no = "$link_static" && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
# ... and its dependency_libs
tmp_libs=
for deplib in $dependency_libs; do
func_resolve_sysroot "$func_stripname_result";;
*) func_resolve_sysroot "$deplib" ;;
esac
- if $opt_preserve_dup_deps ; then
+ if $opt_preserve_dup_deps; then
case "$tmp_libs " in
*" $func_resolve_sysroot_result "*)
func_append specialdeplibs " $func_resolve_sysroot_result" ;;
func_append tmp_libs " $func_resolve_sysroot_result"
done
- if test "$link_all_deplibs" != no; then
+ if test no != "$link_all_deplibs"; then
# Add the search paths of all dependency libraries
for deplib in $dependency_libs; do
path=
case $deplib in
- -L*) path="$deplib" ;;
+ -L*) path=$deplib ;;
*.la)
func_resolve_sysroot "$deplib"
deplib=$func_resolve_sysroot_result
dir=$func_dirname_result
# We need an absolute path.
case $dir in
- [\\/]* | [A-Za-z]:[\\/]*) absdir="$dir" ;;
+ [\\/]* | [A-Za-z]:[\\/]*) absdir=$dir ;;
*)
absdir=`cd "$dir" && pwd`
if test -z "$absdir"; then
- func_warning "cannot determine absolute directory name of \`$dir'"
- absdir="$dir"
+ func_warning "cannot determine absolute directory name of '$dir'"
+ absdir=$dir
fi
;;
esac
case $host in
*-*-darwin*)
depdepl=
- eval deplibrary_names=`${SED} -n -e 's/^library_names=\(.*\)$/\1/p' $deplib`
- if test -n "$deplibrary_names" ; then
- for tmp in $deplibrary_names ; do
+ eval deplibrary_names=`$SED -n -e 's/^library_names=\(.*\)$/\1/p' $deplib`
+ if test -n "$deplibrary_names"; then
+ for tmp in $deplibrary_names; do
depdepl=$tmp
done
- if test -f "$absdir/$objdir/$depdepl" ; then
- depdepl="$absdir/$objdir/$depdepl"
- darwin_install_name=`${OTOOL} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
+ if test -f "$absdir/$objdir/$depdepl"; then
+ depdepl=$absdir/$objdir/$depdepl
+ darwin_install_name=`$OTOOL -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
if test -z "$darwin_install_name"; then
- darwin_install_name=`${OTOOL64} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
+ darwin_install_name=`$OTOOL64 -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
fi
- func_append compiler_flags " ${wl}-dylib_file ${wl}${darwin_install_name}:${depdepl}"
- func_append linker_flags " -dylib_file ${darwin_install_name}:${depdepl}"
+ func_append compiler_flags " $wl-dylib_file $wl$darwin_install_name:$depdepl"
+ func_append linker_flags " -dylib_file $darwin_install_name:$depdepl"
path=
fi
fi
;;
*)
- path="-L$absdir/$objdir"
+ path=-L$absdir/$objdir
;;
esac
else
- eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
+ eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
test -z "$libdir" && \
- func_fatal_error "\`$deplib' is not a valid libtool archive"
+ func_fatal_error "'$deplib' is not a valid libtool archive"
test "$absdir" != "$libdir" && \
- func_warning "\`$deplib' seems to be moved"
+ func_warning "'$deplib' seems to be moved"
- path="-L$absdir"
+ path=-L$absdir
fi
;;
esac
fi # link_all_deplibs != no
fi # linkmode = lib
done # for deplib in $libs
- if test "$pass" = link; then
- if test "$linkmode" = "prog"; then
+ if test link = "$pass"; then
+ if test prog = "$linkmode"; then
compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs"
else
compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
fi
fi
- dependency_libs="$newdependency_libs"
- if test "$pass" = dlpreopen; then
+ dependency_libs=$newdependency_libs
+ if test dlpreopen = "$pass"; then
# Link the dlpreopened libraries before other libraries
for deplib in $save_deplibs; do
deplibs="$deplib $deplibs"
done
fi
- if test "$pass" != dlopen; then
- if test "$pass" != conv; then
+ if test dlopen != "$pass"; then
+ test conv = "$pass" || {
# Make sure lib_search_path contains only unique directories.
lib_search_path=
for dir in $newlib_search_path; do
esac
done
newlib_search_path=
- fi
+ }
- if test "$linkmode,$pass" != "prog,link"; then
- vars="deplibs"
- else
+ if test prog,link = "$linkmode,$pass"; then
vars="compile_deplibs finalize_deplibs"
+ else
+ vars=deplibs
fi
for var in $vars dependency_libs; do
# Add libraries to $var in reverse order
eval $var=\"$tmp_libs\"
done # for var
fi
+
+ # Add Sun CC postdeps if required:
+ test CXX = "$tagname" && {
+ case $host_os in
+ linux*)
+ case `$CC -V 2>&1 | sed 5q` in
+ *Sun\ C*) # Sun C++ 5.9
+ func_suncc_cstd_abi
+
+ if test no != "$suncc_use_cstd_abi"; then
+ func_append postdeps ' -library=Cstd -library=Crun'
+ fi
+ ;;
+ esac
+ ;;
+
+ solaris*)
+ func_cc_basename "$CC"
+ case $func_cc_basename_result in
+ CC* | sunCC*)
+ func_suncc_cstd_abi
+
+ if test no != "$suncc_use_cstd_abi"; then
+ func_append postdeps ' -library=Cstd -library=Crun'
+ fi
+ ;;
+ esac
+ ;;
+ esac
+ }
+
# Last step: remove runtime libs from dependency_libs
# (they stay in deplibs)
tmp_libs=
- for i in $dependency_libs ; do
+ for i in $dependency_libs; do
case " $predeps $postdeps $compiler_lib_search_path " in
*" $i "*)
- i=""
+ i=
;;
esac
- if test -n "$i" ; then
+ if test -n "$i"; then
func_append tmp_libs " $i"
fi
done
dependency_libs=$tmp_libs
done # for pass
- if test "$linkmode" = prog; then
- dlfiles="$newdlfiles"
+ if test prog = "$linkmode"; then
+ dlfiles=$newdlfiles
fi
- if test "$linkmode" = prog || test "$linkmode" = lib; then
- dlprefiles="$newdlprefiles"
+ if test prog = "$linkmode" || test lib = "$linkmode"; then
+ dlprefiles=$newdlprefiles
fi
case $linkmode in
oldlib)
- if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
- func_warning "\`-dlopen' is ignored for archives"
+ if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
+ func_warning "'-dlopen' is ignored for archives"
fi
case " $deplibs" in
*\ -l* | *\ -L*)
- func_warning "\`-l' and \`-L' are ignored for archives" ;;
+ func_warning "'-l' and '-L' are ignored for archives" ;;
esac
test -n "$rpath" && \
- func_warning "\`-rpath' is ignored for archives"
+ func_warning "'-rpath' is ignored for archives"
test -n "$xrpath" && \
- func_warning "\`-R' is ignored for archives"
+ func_warning "'-R' is ignored for archives"
test -n "$vinfo" && \
- func_warning "\`-version-info/-version-number' is ignored for archives"
+ func_warning "'-version-info/-version-number' is ignored for archives"
test -n "$release" && \
- func_warning "\`-release' is ignored for archives"
+ func_warning "'-release' is ignored for archives"
test -n "$export_symbols$export_symbols_regex" && \
- func_warning "\`-export-symbols' is ignored for archives"
+ func_warning "'-export-symbols' is ignored for archives"
# Now set the variables for building old libraries.
build_libtool_libs=no
- oldlibs="$output"
+ oldlibs=$output
func_append objs "$old_deplibs"
;;
lib)
- # Make sure we only generate libraries of the form `libNAME.la'.
+ # Make sure we only generate libraries of the form 'libNAME.la'.
case $outputname in
lib*)
func_stripname 'lib' '.la' "$outputname"
eval libname=\"$libname_spec\"
;;
*)
- test "$module" = no && \
- func_fatal_help "libtool library \`$output' must begin with \`lib'"
+ test no = "$module" \
+ && func_fatal_help "libtool library '$output' must begin with 'lib'"
- if test "$need_lib_prefix" != no; then
+ if test no != "$need_lib_prefix"; then
# Add the "lib" prefix for modules if required
func_stripname '' '.la' "$outputname"
name=$func_stripname_result
esac
if test -n "$objs"; then
- if test "$deplibs_check_method" != pass_all; then
- func_fatal_error "cannot build libtool library \`$output' from non-libtool objects on this host:$objs"
+ if test pass_all != "$deplibs_check_method"; then
+ func_fatal_error "cannot build libtool library '$output' from non-libtool objects on this host:$objs"
else
echo
$ECHO "*** Warning: Linking the shared library $output against the non-libtool"
fi
fi
- test "$dlself" != no && \
- func_warning "\`-dlopen self' is ignored for libtool libraries"
+ test no = "$dlself" \
+ || func_warning "'-dlopen self' is ignored for libtool libraries"
set dummy $rpath
shift
- test "$#" -gt 1 && \
- func_warning "ignoring multiple \`-rpath's for a libtool library"
+ test 1 -lt "$#" \
+ && func_warning "ignoring multiple '-rpath's for a libtool library"
- install_libdir="$1"
+ install_libdir=$1
oldlibs=
if test -z "$rpath"; then
- if test "$build_libtool_libs" = yes; then
+ if test yes = "$build_libtool_libs"; then
# Building a libtool convenience library.
- # Some compilers have problems with a `.al' extension so
+ # Some compilers have problems with a '.al' extension so
# convenience libraries should have the same extension an
# archive normally would.
oldlibs="$output_objdir/$libname.$libext $oldlibs"
fi
test -n "$vinfo" && \
- func_warning "\`-version-info/-version-number' is ignored for convenience libraries"
+ func_warning "'-version-info/-version-number' is ignored for convenience libraries"
test -n "$release" && \
- func_warning "\`-release' is ignored for convenience libraries"
+ func_warning "'-release' is ignored for convenience libraries"
else
# Parse the version information argument.
- save_ifs="$IFS"; IFS=':'
+ save_ifs=$IFS; IFS=:
set dummy $vinfo 0 0 0
shift
- IFS="$save_ifs"
+ IFS=$save_ifs
test -n "$7" && \
- func_fatal_help "too many parameters to \`-version-info'"
+ func_fatal_help "too many parameters to '-version-info'"
# convert absolute version numbers to libtool ages
# this retains compatibility with .la files and attempts
case $vinfo_number in
yes)
- number_major="$1"
- number_minor="$2"
- number_revision="$3"
+ number_major=$1
+ number_minor=$2
+ number_revision=$3
#
# There are really only two kinds -- those that
# use the current revision as the major version
# and those that subtract age and use age as
# a minor version. But, then there is irix
- # which has an extra 1 added just for fun
+ # that has an extra 1 added just for fun
#
case $version_type in
# correct linux to gnu/linux during the next big refactor
- darwin|linux|osf|windows|none)
+ darwin|freebsd-elf|linux|osf|windows|none)
func_arith $number_major + $number_minor
current=$func_arith_result
- age="$number_minor"
- revision="$number_revision"
+ age=$number_minor
+ revision=$number_revision
;;
- freebsd-aout|freebsd-elf|qnx|sunos)
- current="$number_major"
- revision="$number_minor"
- age="0"
+ freebsd-aout|qnx|sunos)
+ current=$number_major
+ revision=$number_minor
+ age=0
;;
irix|nonstopux)
func_arith $number_major + $number_minor
current=$func_arith_result
- age="$number_minor"
- revision="$number_minor"
+ age=$number_minor
+ revision=$number_minor
lt_irix_increment=no
;;
esac
;;
no)
- current="$1"
- revision="$2"
- age="$3"
+ current=$1
+ revision=$2
+ age=$3
;;
esac
case $current in
0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
*)
- func_error "CURRENT \`$current' must be a nonnegative integer"
- func_fatal_error "\`$vinfo' is not valid version information"
+ func_error "CURRENT '$current' must be a nonnegative integer"
+ func_fatal_error "'$vinfo' is not valid version information"
;;
esac
case $revision in
0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
*)
- func_error "REVISION \`$revision' must be a nonnegative integer"
- func_fatal_error "\`$vinfo' is not valid version information"
+ func_error "REVISION '$revision' must be a nonnegative integer"
+ func_fatal_error "'$vinfo' is not valid version information"
;;
esac
case $age in
0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
*)
- func_error "AGE \`$age' must be a nonnegative integer"
- func_fatal_error "\`$vinfo' is not valid version information"
+ func_error "AGE '$age' must be a nonnegative integer"
+ func_fatal_error "'$vinfo' is not valid version information"
;;
esac
if test "$age" -gt "$current"; then
- func_error "AGE \`$age' is greater than the current interface number \`$current'"
- func_fatal_error "\`$vinfo' is not valid version information"
+ func_error "AGE '$age' is greater than the current interface number '$current'"
+ func_fatal_error "'$vinfo' is not valid version information"
fi
# Calculate the version variables.
# verstring for coding it into the library header
func_arith $current - $age
major=.$func_arith_result
- versuffix="$major.$age.$revision"
+ versuffix=$major.$age.$revision
# Darwin ld doesn't like 0 for these options...
func_arith $current + 1
minor_current=$func_arith_result
- xlcverstring="${wl}-compatibility_version ${wl}$minor_current ${wl}-current_version ${wl}$minor_current.$revision"
+ xlcverstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision"
verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
+ # On Darwin other compilers
+ case $CC in
+ nagfor*)
+ verstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision"
+ ;;
+ *)
+ verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
+ ;;
+ esac
;;
freebsd-aout)
- major=".$current"
- versuffix=".$current.$revision";
+ major=.$current
+ versuffix=.$current.$revision
;;
freebsd-elf)
- major=".$current"
- versuffix=".$current"
+ func_arith $current - $age
+ major=.$func_arith_result
+ versuffix=$major.$age.$revision
;;
irix | nonstopux)
- if test "X$lt_irix_increment" = "Xno"; then
+ if test no = "$lt_irix_increment"; then
func_arith $current - $age
else
func_arith $current - $age + 1
nonstopux) verstring_prefix=nonstopux ;;
*) verstring_prefix=sgi ;;
esac
- verstring="$verstring_prefix$major.$revision"
+ verstring=$verstring_prefix$major.$revision
# Add in all the interfaces that we are compatible with.
loop=$revision
- while test "$loop" -ne 0; do
+ while test 0 -ne "$loop"; do
func_arith $revision - $loop
iface=$func_arith_result
func_arith $loop - 1
loop=$func_arith_result
- verstring="$verstring_prefix$major.$iface:$verstring"
+ verstring=$verstring_prefix$major.$iface:$verstring
done
- # Before this point, $major must not contain `.'.
+ # Before this point, $major must not contain '.'.
major=.$major
- versuffix="$major.$revision"
+ versuffix=$major.$revision
;;
linux) # correct to gnu/linux during the next big refactor
func_arith $current - $age
major=.$func_arith_result
- versuffix="$major.$age.$revision"
+ versuffix=$major.$age.$revision
;;
osf)
func_arith $current - $age
major=.$func_arith_result
- versuffix=".$current.$age.$revision"
- verstring="$current.$age.$revision"
+ versuffix=.$current.$age.$revision
+ verstring=$current.$age.$revision
# Add in all the interfaces that we are compatible with.
loop=$age
- while test "$loop" -ne 0; do
+ while test 0 -ne "$loop"; do
func_arith $current - $loop
iface=$func_arith_result
func_arith $loop - 1
loop=$func_arith_result
- verstring="$verstring:${iface}.0"
+ verstring=$verstring:$iface.0
done
# Make executables depend on our current version.
- func_append verstring ":${current}.0"
+ func_append verstring ":$current.0"
;;
qnx)
- major=".$current"
- versuffix=".$current"
+ major=.$current
+ versuffix=.$current
+ ;;
+
+ sco)
+ major=.$current
+ versuffix=.$current
;;
sunos)
- major=".$current"
- versuffix=".$current.$revision"
+ major=.$current
+ versuffix=.$current.$revision
;;
windows)
# Use '-' rather than '.', since we only want one
- # extension on DOS 8.3 filesystems.
+ # extension on DOS 8.3 file systems.
func_arith $current - $age
major=$func_arith_result
- versuffix="-$major"
+ versuffix=-$major
;;
*)
- func_fatal_configuration "unknown library version type \`$version_type'"
+ func_fatal_configuration "unknown library version type '$version_type'"
;;
esac
verstring=
;;
*)
- verstring="0.0"
+ verstring=0.0
;;
esac
- if test "$need_version" = no; then
+ if test no = "$need_version"; then
versuffix=
else
- versuffix=".0.0"
+ versuffix=.0.0
fi
fi
# Remove version info from name if versioning should be avoided
- if test "$avoid_version" = yes && test "$need_version" = no; then
+ if test yes,no = "$avoid_version,$need_version"; then
major=
versuffix=
- verstring=""
+ verstring=
fi
# Check to see if the archive will have undefined symbols.
- if test "$allow_undefined" = yes; then
- if test "$allow_undefined_flag" = unsupported; then
- func_warning "undefined symbols not allowed in $host shared libraries"
- build_libtool_libs=no
- build_old_libs=yes
+ if test yes = "$allow_undefined"; then
+ if test unsupported = "$allow_undefined_flag"; then
+ if test yes = "$build_old_libs"; then
+ func_warning "undefined symbols not allowed in $host shared libraries; building static only"
+ build_libtool_libs=no
+ else
+ func_fatal_error "can't build $host shared library unless -no-undefined is specified"
+ fi
fi
else
# Don't allow undefined symbols.
- allow_undefined_flag="$no_undefined_flag"
+ allow_undefined_flag=$no_undefined_flag
fi
fi
- func_generate_dlsyms "$libname" "$libname" "yes"
+ func_generate_dlsyms "$libname" "$libname" :
func_append libobjs " $symfileobj"
- test "X$libobjs" = "X " && libobjs=
+ test " " = "$libobjs" && libobjs=
- if test "$opt_mode" != relink; then
+ if test relink != "$opt_mode"; then
# Remove our outputs, but don't remove object files since they
# may have been created when compiling PIC objects.
removelist=
case $p in
*.$objext | *.gcno)
;;
- $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/${libname}${release}.*)
- if test "X$precious_files_regex" != "X"; then
+ $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/$libname$release.*)
+ if test -n "$precious_files_regex"; then
if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1
then
continue
fi
# Now set the variables for building old libraries.
- if test "$build_old_libs" = yes && test "$build_libtool_libs" != convenience ; then
+ if test yes = "$build_old_libs" && test convenience != "$build_libtool_libs"; then
func_append oldlibs " $output_objdir/$libname.$libext"
# Transform .lo files to .o files.
- oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; $lo2o" | $NL2SP`
+ oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; $lo2o" | $NL2SP`
fi
# Eliminate all temporary directories.
*) func_append finalize_rpath " $libdir" ;;
esac
done
- if test "$hardcode_into_libs" != yes || test "$build_old_libs" = yes; then
+ if test yes != "$hardcode_into_libs" || test yes = "$build_old_libs"; then
dependency_libs="$temp_xrpath $dependency_libs"
fi
fi
# Make sure dlfiles contains only unique files that won't be dlpreopened
- old_dlfiles="$dlfiles"
+ old_dlfiles=$dlfiles
dlfiles=
for lib in $old_dlfiles; do
case " $dlprefiles $dlfiles " in
done
# Make sure dlprefiles contains only unique files
- old_dlprefiles="$dlprefiles"
+ old_dlprefiles=$dlprefiles
dlprefiles=
for lib in $old_dlprefiles; do
case "$dlprefiles " in
esac
done
- if test "$build_libtool_libs" = yes; then
+ if test yes = "$build_libtool_libs"; then
if test -n "$rpath"; then
case $host in
*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*)
;;
*)
# Add libc to deplibs on all other systems if necessary.
- if test "$build_libtool_need_lc" = "yes"; then
+ if test yes = "$build_libtool_need_lc"; then
func_append deplibs " -lc"
fi
;;
# I'm not sure if I'm treating the release correctly. I think
# release should show up in the -l (ie -lgmp5) so we don't want to
# add it in twice. Is that correct?
- release=""
- versuffix=""
- major=""
+ release=
+ versuffix=
+ major=
newdeplibs=
droppeddeps=no
case $deplibs_check_method in
-l*)
func_stripname -l '' "$i"
name=$func_stripname_result
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+ if test yes = "$allow_libtool_libs_with_static_runtimes"; then
case " $predeps $postdeps " in
*" $i "*)
func_append newdeplibs " $i"
- i=""
+ i=
;;
esac
fi
- if test -n "$i" ; then
+ if test -n "$i"; then
libname=`eval "\\$ECHO \"$libname_spec\""`
deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
set dummy $deplib_matches; shift
deplib_match=$1
- if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then
+ if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0; then
func_append newdeplibs " $i"
else
droppeddeps=yes
$opt_dry_run || $RM conftest
if $LTCC $LTCFLAGS -o conftest conftest.c $i; then
ldd_output=`ldd conftest`
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+ if test yes = "$allow_libtool_libs_with_static_runtimes"; then
case " $predeps $postdeps " in
*" $i "*)
func_append newdeplibs " $i"
- i=""
+ i=
;;
esac
fi
- if test -n "$i" ; then
+ if test -n "$i"; then
libname=`eval "\\$ECHO \"$libname_spec\""`
deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
set dummy $deplib_matches; shift
deplib_match=$1
- if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then
+ if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0; then
func_append newdeplibs " $i"
else
droppeddeps=yes
-l*)
func_stripname -l '' "$a_deplib"
name=$func_stripname_result
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+ if test yes = "$allow_libtool_libs_with_static_runtimes"; then
case " $predeps $postdeps " in
*" $a_deplib "*)
func_append newdeplibs " $a_deplib"
- a_deplib=""
+ a_deplib=
;;
esac
fi
- if test -n "$a_deplib" ; then
+ if test -n "$a_deplib"; then
libname=`eval "\\$ECHO \"$libname_spec\""`
if test -n "$file_magic_glob"; then
libnameglob=`func_echo_all "$libname" | $SED -e $file_magic_glob`
else
libnameglob=$libname
fi
- test "$want_nocaseglob" = yes && nocaseglob=`shopt -p nocaseglob`
+ test yes = "$want_nocaseglob" && nocaseglob=`shopt -p nocaseglob`
for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
- if test "$want_nocaseglob" = yes; then
+ if test yes = "$want_nocaseglob"; then
shopt -s nocaseglob
potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
$nocaseglob
# We might still enter an endless loop, since a link
# loop can be closed while we follow links,
# but so what?
- potlib="$potent_lib"
+ potlib=$potent_lib
while test -h "$potlib" 2>/dev/null; do
- potliblink=`ls -ld $potlib | ${SED} 's/.* -> //'`
+ potliblink=`ls -ld $potlib | $SED 's/.* -> //'`
case $potliblink in
- [\\/]* | [A-Za-z]:[\\/]*) potlib="$potliblink";;
- *) potlib=`$ECHO "$potlib" | $SED 's,[^/]*$,,'`"$potliblink";;
+ [\\/]* | [A-Za-z]:[\\/]*) potlib=$potliblink;;
+ *) potlib=`$ECHO "$potlib" | $SED 's|[^/]*$||'`"$potliblink";;
esac
done
if eval $file_magic_cmd \"\$potlib\" 2>/dev/null |
$SED -e 10q |
$EGREP "$file_magic_regex" > /dev/null; then
func_append newdeplibs " $a_deplib"
- a_deplib=""
+ a_deplib=
break 2
fi
done
done
fi
- if test -n "$a_deplib" ; then
+ if test -n "$a_deplib"; then
droppeddeps=yes
echo
$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
echo "*** you link to this library. But I can only do this if you have a"
echo "*** shared version of the library, which you do not appear to have"
echo "*** because I did check the linker path looking for a file starting"
- if test -z "$potlib" ; then
+ if test -z "$potlib"; then
$ECHO "*** with $libname but no candidates were found. (...for file magic test)"
else
$ECHO "*** with $libname and none of the candidates passed a file format test"
-l*)
func_stripname -l '' "$a_deplib"
name=$func_stripname_result
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+ if test yes = "$allow_libtool_libs_with_static_runtimes"; then
case " $predeps $postdeps " in
*" $a_deplib "*)
func_append newdeplibs " $a_deplib"
- a_deplib=""
+ a_deplib=
;;
esac
fi
- if test -n "$a_deplib" ; then
+ if test -n "$a_deplib"; then
libname=`eval "\\$ECHO \"$libname_spec\""`
for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
for potent_lib in $potential_libs; do
- potlib="$potent_lib" # see symlink-check above in file_magic test
+ potlib=$potent_lib # see symlink-check above in file_magic test
if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \
$EGREP "$match_pattern_regex" > /dev/null; then
func_append newdeplibs " $a_deplib"
- a_deplib=""
+ a_deplib=
break 2
fi
done
done
fi
- if test -n "$a_deplib" ; then
+ if test -n "$a_deplib"; then
droppeddeps=yes
echo
$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
echo "*** you link to this library. But I can only do this if you have a"
echo "*** shared version of the library, which you do not appear to have"
echo "*** because I did check the linker path looking for a file starting"
- if test -z "$potlib" ; then
+ if test -z "$potlib"; then
$ECHO "*** with $libname but no candidates were found. (...for regex pattern test)"
else
$ECHO "*** with $libname and none of the candidates passed a file format test"
done # Gone through all deplibs.
;;
none | unknown | *)
- newdeplibs=""
+ newdeplibs=
tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'`
- if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
- for i in $predeps $postdeps ; do
+ if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+ for i in $predeps $postdeps; do
# can't use Xsed below, because $i might contain '/'
- tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s,$i,,"`
+ tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s|$i||"`
done
fi
case $tmp_deplibs in
*[!\ \ ]*)
echo
- if test "X$deplibs_check_method" = "Xnone"; then
+ if test none = "$deplibs_check_method"; then
echo "*** Warning: inter-library dependencies are not supported in this platform."
else
echo "*** Warning: inter-library dependencies are not known to be supported."
;;
esac
- if test "$droppeddeps" = yes; then
- if test "$module" = yes; then
+ if test yes = "$droppeddeps"; then
+ if test yes = "$module"; then
echo
echo "*** Warning: libtool could not satisfy all declared inter-library"
$ECHO "*** dependencies of module $libname. Therefore, libtool will create"
if test -z "$global_symbol_pipe"; then
echo
echo "*** However, this would only work if libtool was able to extract symbol"
- echo "*** lists from a program, using \`nm' or equivalent, but libtool could"
+ echo "*** lists from a program, using 'nm' or equivalent, but libtool could"
echo "*** not find such a program. So, this module is probably useless."
- echo "*** \`nm' from GNU binutils and a full rebuild may help."
+ echo "*** 'nm' from GNU binutils and a full rebuild may help."
fi
- if test "$build_old_libs" = no; then
- oldlibs="$output_objdir/$libname.$libext"
+ if test no = "$build_old_libs"; then
+ oldlibs=$output_objdir/$libname.$libext
build_libtool_libs=module
build_old_libs=yes
else
echo "*** automatically added whenever a program is linked with this library"
echo "*** or is declared to -dlopen it."
- if test "$allow_undefined" = no; then
+ if test no = "$allow_undefined"; then
echo
echo "*** Since this library must not contain undefined symbols,"
echo "*** because either the platform does not support them or"
echo "*** it was explicitly requested with -no-undefined,"
echo "*** libtool will only create a static version of it."
- if test "$build_old_libs" = no; then
- oldlibs="$output_objdir/$libname.$libext"
+ if test no = "$build_old_libs"; then
+ oldlibs=$output_objdir/$libname.$libext
build_libtool_libs=module
build_old_libs=yes
else
*) func_append new_libs " $deplib" ;;
esac
done
- deplibs="$new_libs"
+ deplibs=$new_libs
# All the library-specific variables (install_libdir is set above).
library_names=
dlname=
# Test again, we may have decided not to build it any more
- if test "$build_libtool_libs" = yes; then
- # Remove ${wl} instances when linking with ld.
+ if test yes = "$build_libtool_libs"; then
+ # Remove $wl instances when linking with ld.
# FIXME: should test the right _cmds variable.
case $archive_cmds in
*\$LD\ *) wl= ;;
esac
- if test "$hardcode_into_libs" = yes; then
+ if test yes = "$hardcode_into_libs"; then
# Hardcode the library paths
hardcode_libdirs=
dep_rpath=
- rpath="$finalize_rpath"
- test "$opt_mode" != relink && rpath="$compile_rpath$rpath"
+ rpath=$finalize_rpath
+ test relink = "$opt_mode" || rpath=$compile_rpath$rpath
for libdir in $rpath; do
if test -n "$hardcode_libdir_flag_spec"; then
if test -n "$hardcode_libdir_separator"; then
func_replace_sysroot "$libdir"
libdir=$func_replace_sysroot_result
if test -z "$hardcode_libdirs"; then
- hardcode_libdirs="$libdir"
+ hardcode_libdirs=$libdir
else
# Just accumulate the unique libdirs.
case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
# Substitute the hardcoded libdirs into the rpath.
if test -n "$hardcode_libdir_separator" &&
test -n "$hardcode_libdirs"; then
- libdir="$hardcode_libdirs"
+ libdir=$hardcode_libdirs
eval "dep_rpath=\"$hardcode_libdir_flag_spec\""
fi
if test -n "$runpath_var" && test -n "$perm_rpath"; then
test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs"
fi
- shlibpath="$finalize_shlibpath"
- test "$opt_mode" != relink && shlibpath="$compile_shlibpath$shlibpath"
+ shlibpath=$finalize_shlibpath
+ test relink = "$opt_mode" || shlibpath=$compile_shlibpath$shlibpath
if test -n "$shlibpath"; then
eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var"
fi
eval library_names=\"$library_names_spec\"
set dummy $library_names
shift
- realname="$1"
+ realname=$1
shift
if test -n "$soname_spec"; then
eval soname=\"$soname_spec\"
else
- soname="$realname"
+ soname=$realname
fi
if test -z "$dlname"; then
dlname=$soname
fi
- lib="$output_objdir/$realname"
+ lib=$output_objdir/$realname
linknames=
for link
do
delfiles=
if test -n "$export_symbols" && test -n "$include_expsyms"; then
$opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp"
- export_symbols="$output_objdir/$libname.uexp"
+ export_symbols=$output_objdir/$libname.uexp
func_append delfiles " $export_symbols"
fi
cygwin* | mingw* | cegcc*)
if test -n "$export_symbols" && test -z "$export_symbols_regex"; then
# exporting using user supplied symfile
- if test "x`$SED 1q $export_symbols`" != xEXPORTS; then
+ func_dll_def_p "$export_symbols" || {
# and it's NOT already a .def file. Must figure out
# which of the given symbols are data symbols and tag
# them as such. So, trigger use of export_symbols_cmds.
# export_symbols gets reassigned inside the "prepare
# the list of exported symbols" if statement, so the
# include_expsyms logic still works.
- orig_export_symbols="$export_symbols"
+ orig_export_symbols=$export_symbols
export_symbols=
always_export_symbols=yes
- fi
+ }
fi
;;
esac
# Prepare the list of exported symbols
if test -z "$export_symbols"; then
- if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then
- func_verbose "generating symbol list for \`$libname.la'"
- export_symbols="$output_objdir/$libname.exp"
+ if test yes = "$always_export_symbols" || test -n "$export_symbols_regex"; then
+ func_verbose "generating symbol list for '$libname.la'"
+ export_symbols=$output_objdir/$libname.exp
$opt_dry_run || $RM $export_symbols
cmds=$export_symbols_cmds
- save_ifs="$IFS"; IFS='~'
+ save_ifs=$IFS; IFS='~'
for cmd1 in $cmds; do
- IFS="$save_ifs"
+ IFS=$save_ifs
# Take the normal branch if the nm_file_list_spec branch
# doesn't work or if tool conversion is not needed.
case $nm_file_list_spec~$to_tool_file_cmd in
try_normal_branch=no
;;
esac
- if test "$try_normal_branch" = yes \
+ if test yes = "$try_normal_branch" \
&& { test "$len" -lt "$max_cmd_len" \
|| test "$max_cmd_len" -le -1; }
then
output_la=$func_basename_result
save_libobjs=$libobjs
save_output=$output
- output=${output_objdir}/${output_la}.nm
+ output=$output_objdir/$output_la.nm
func_to_tool_file "$output"
libobjs=$nm_file_list_spec$func_to_tool_file_result
func_append delfiles " $output"
break
fi
done
- IFS="$save_ifs"
- if test -n "$export_symbols_regex" && test "X$skipped_export" != "X:"; then
+ IFS=$save_ifs
+ if test -n "$export_symbols_regex" && test : != "$skipped_export"; then
func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
fi
fi
if test -n "$export_symbols" && test -n "$include_expsyms"; then
- tmp_export_symbols="$export_symbols"
- test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
+ tmp_export_symbols=$export_symbols
+ test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols
$opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
fi
- if test "X$skipped_export" != "X:" && test -n "$orig_export_symbols"; then
+ if test : != "$skipped_export" && test -n "$orig_export_symbols"; then
# The given exports_symbols file has to be filtered, so filter it.
- func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
+ func_verbose "filter symbol list for '$libname.la' to tag DATA exports"
# FIXME: $output_objdir/$libname.filter potentially contains lots of
- # 's' commands which not all seds can handle. GNU sed should be fine
+ # 's' commands, which not all seds can handle. GNU sed should be fine
# though. Also, the filter scales superlinearly with the number of
# global variables. join(1) would be nice here, but unfortunately
# isn't a blessed tool.
;;
esac
done
- deplibs="$tmp_deplibs"
+ deplibs=$tmp_deplibs
if test -n "$convenience"; then
if test -n "$whole_archive_flag_spec" &&
- test "$compiler_needs_object" = yes &&
+ test yes = "$compiler_needs_object" &&
test -z "$libobjs"; then
# extract the archives, so we have objects to list.
# TODO: could optimize this to just extract one archive.
eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
test "X$libobjs" = "X " && libobjs=
else
- gentop="$output_objdir/${outputname}x"
+ gentop=$output_objdir/${outputname}x
func_append generated " $gentop"
func_extract_archives $gentop $convenience
fi
fi
- if test "$thread_safe" = yes && test -n "$thread_safe_flag_spec"; then
+ if test yes = "$thread_safe" && test -n "$thread_safe_flag_spec"; then
eval flag=\"$thread_safe_flag_spec\"
func_append linker_flags " $flag"
fi
# Make a backup of the uninstalled library when relinking
- if test "$opt_mode" = relink; then
+ if test relink = "$opt_mode"; then
$opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $?
fi
# Do each of the archive commands.
- if test "$module" = yes && test -n "$module_cmds" ; then
+ if test yes = "$module" && test -n "$module_cmds"; then
if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
eval test_cmds=\"$module_expsym_cmds\"
cmds=$module_expsym_cmds
fi
fi
- if test "X$skipped_export" != "X:" &&
+ if test : != "$skipped_export" &&
func_len " $test_cmds" &&
len=$func_len_result &&
test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
last_robj=
k=1
- if test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "$with_gnu_ld" = yes; then
- output=${output_objdir}/${output_la}.lnkscript
+ if test -n "$save_libobjs" && test : != "$skipped_export" && test yes = "$with_gnu_ld"; then
+ output=$output_objdir/$output_la.lnkscript
func_verbose "creating GNU ld script: $output"
echo 'INPUT (' > $output
for obj in $save_libobjs
func_append delfiles " $output"
func_to_tool_file "$output"
output=$func_to_tool_file_result
- elif test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "X$file_list_spec" != X; then
- output=${output_objdir}/${output_la}.lnk
+ elif test -n "$save_libobjs" && test : != "$skipped_export" && test -n "$file_list_spec"; then
+ output=$output_objdir/$output_la.lnk
func_verbose "creating linker input file list: $output"
: > $output
set x $save_libobjs
shift
firstobj=
- if test "$compiler_needs_object" = yes; then
+ if test yes = "$compiler_needs_object"; then
firstobj="$1 "
shift
fi
else
if test -n "$save_libobjs"; then
func_verbose "creating reloadable object files..."
- output=$output_objdir/$output_la-${k}.$objext
+ output=$output_objdir/$output_la-$k.$objext
eval test_cmds=\"$reload_cmds\"
func_len " $test_cmds"
len0=$func_len_result
func_len " $obj"
func_arith $len + $func_len_result
len=$func_arith_result
- if test "X$objlist" = X ||
+ if test -z "$objlist" ||
test "$len" -lt "$max_cmd_len"; then
func_append objlist " $obj"
else
# The command $test_cmds is almost too long, add a
# command to the queue.
- if test "$k" -eq 1 ; then
+ if test 1 -eq "$k"; then
# The first file doesn't have a previous command to add.
reload_objs=$objlist
eval concat_cmds=\"$reload_cmds\"
reload_objs="$objlist $last_robj"
eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\"
fi
- last_robj=$output_objdir/$output_la-${k}.$objext
+ last_robj=$output_objdir/$output_la-$k.$objext
func_arith $k + 1
k=$func_arith_result
- output=$output_objdir/$output_la-${k}.$objext
+ output=$output_objdir/$output_la-$k.$objext
objlist=" $obj"
func_len " $last_robj"
func_arith $len0 + $func_len_result
# files will link in the last one created.
test -z "$concat_cmds" || concat_cmds=$concat_cmds~
reload_objs="$objlist $last_robj"
- eval concat_cmds=\"\${concat_cmds}$reload_cmds\"
+ eval concat_cmds=\"\$concat_cmds$reload_cmds\"
if test -n "$last_robj"; then
- eval concat_cmds=\"\${concat_cmds}~\$RM $last_robj\"
+ eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
fi
func_append delfiles " $output"
output=
fi
- if ${skipped_export-false}; then
- func_verbose "generating symbol list for \`$libname.la'"
- export_symbols="$output_objdir/$libname.exp"
+ ${skipped_export-false} && {
+ func_verbose "generating symbol list for '$libname.la'"
+ export_symbols=$output_objdir/$libname.exp
$opt_dry_run || $RM $export_symbols
libobjs=$output
# Append the command to create the export file.
if test -n "$last_robj"; then
eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
fi
- fi
+ }
test -n "$save_libobjs" &&
func_verbose "creating a temporary reloadable object file: $output"
# Loop through the commands generated above and execute them.
- save_ifs="$IFS"; IFS='~'
+ save_ifs=$IFS; IFS='~'
for cmd in $concat_cmds; do
- IFS="$save_ifs"
- $opt_silent || {
+ IFS=$save_ifs
+ $opt_quiet || {
func_quote_for_expand "$cmd"
eval "func_echo $func_quote_for_expand_result"
}
lt_exit=$?
# Restore the uninstalled library and exit
- if test "$opt_mode" = relink; then
+ if test relink = "$opt_mode"; then
( cd "$output_objdir" && \
$RM "${realname}T" && \
$MV "${realname}U" "$realname" )
exit $lt_exit
}
done
- IFS="$save_ifs"
+ IFS=$save_ifs
if test -n "$export_symbols_regex" && ${skipped_export-false}; then
func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
fi
fi
- if ${skipped_export-false}; then
+ ${skipped_export-false} && {
if test -n "$export_symbols" && test -n "$include_expsyms"; then
- tmp_export_symbols="$export_symbols"
- test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
+ tmp_export_symbols=$export_symbols
+ test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols
$opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
fi
if test -n "$orig_export_symbols"; then
# The given exports_symbols file has to be filtered, so filter it.
- func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
+ func_verbose "filter symbol list for '$libname.la' to tag DATA exports"
# FIXME: $output_objdir/$libname.filter potentially contains lots of
- # 's' commands which not all seds can handle. GNU sed should be fine
+ # 's' commands, which not all seds can handle. GNU sed should be fine
# though. Also, the filter scales superlinearly with the number of
# global variables. join(1) would be nice here, but unfortunately
# isn't a blessed tool.
export_symbols=$output_objdir/$libname.def
$opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
fi
- fi
+ }
libobjs=$output
# Restore the value of output.
# value of $libobjs for piecewise linking.
# Do each of the archive commands.
- if test "$module" = yes && test -n "$module_cmds" ; then
+ if test yes = "$module" && test -n "$module_cmds"; then
if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
cmds=$module_expsym_cmds
else
# Add any objects from preloaded convenience libraries
if test -n "$dlprefiles"; then
- gentop="$output_objdir/${outputname}x"
+ gentop=$output_objdir/${outputname}x
func_append generated " $gentop"
func_extract_archives $gentop $dlprefiles
test "X$libobjs" = "X " && libobjs=
fi
- save_ifs="$IFS"; IFS='~'
+ save_ifs=$IFS; IFS='~'
for cmd in $cmds; do
- IFS="$save_ifs"
+ IFS=$sp$nl
eval cmd=\"$cmd\"
- $opt_silent || {
+ IFS=$save_ifs
+ $opt_quiet || {
func_quote_for_expand "$cmd"
eval "func_echo $func_quote_for_expand_result"
}
lt_exit=$?
# Restore the uninstalled library and exit
- if test "$opt_mode" = relink; then
+ if test relink = "$opt_mode"; then
( cd "$output_objdir" && \
$RM "${realname}T" && \
$MV "${realname}U" "$realname" )
exit $lt_exit
}
done
- IFS="$save_ifs"
+ IFS=$save_ifs
# Restore the uninstalled library and exit
- if test "$opt_mode" = relink; then
+ if test relink = "$opt_mode"; then
$opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $?
if test -n "$convenience"; then
done
# If -module or -export-dynamic was specified, set the dlname.
- if test "$module" = yes || test "$export_dynamic" = yes; then
+ if test yes = "$module" || test yes = "$export_dynamic"; then
# On all known operating systems, these are identical.
- dlname="$soname"
+ dlname=$soname
fi
fi
;;
obj)
- if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
- func_warning "\`-dlopen' is ignored for objects"
+ if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
+ func_warning "'-dlopen' is ignored for objects"
fi
case " $deplibs" in
*\ -l* | *\ -L*)
- func_warning "\`-l' and \`-L' are ignored for objects" ;;
+ func_warning "'-l' and '-L' are ignored for objects" ;;
esac
test -n "$rpath" && \
- func_warning "\`-rpath' is ignored for objects"
+ func_warning "'-rpath' is ignored for objects"
test -n "$xrpath" && \
- func_warning "\`-R' is ignored for objects"
+ func_warning "'-R' is ignored for objects"
test -n "$vinfo" && \
- func_warning "\`-version-info' is ignored for objects"
+ func_warning "'-version-info' is ignored for objects"
test -n "$release" && \
- func_warning "\`-release' is ignored for objects"
+ func_warning "'-release' is ignored for objects"
case $output in
*.lo)
test -n "$objs$old_deplibs" && \
- func_fatal_error "cannot build library object \`$output' from non-libtool objects"
+ func_fatal_error "cannot build library object '$output' from non-libtool objects"
libobj=$output
func_lo2o "$libobj"
;;
*)
libobj=
- obj="$output"
+ obj=$output
;;
esac
# the extraction.
reload_conv_objs=
gentop=
- # reload_cmds runs $LD directly, so let us get rid of
- # -Wl from whole_archive_flag_spec and hope we can get by with
- # turning comma into space..
- wl=
-
+ # if reload_cmds runs $LD directly, get rid of -Wl from
+ # whole_archive_flag_spec and hope we can get by with turning comma
+ # into space.
+ case $reload_cmds in
+ *\$LD[\ \$]*) wl= ;;
+ esac
if test -n "$convenience"; then
if test -n "$whole_archive_flag_spec"; then
eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\"
- reload_conv_objs=$reload_objs\ `$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'`
+ test -n "$wl" || tmp_whole_archive_flags=`$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'`
+ reload_conv_objs=$reload_objs\ $tmp_whole_archive_flags
else
- gentop="$output_objdir/${obj}x"
+ gentop=$output_objdir/${obj}x
func_append generated " $gentop"
func_extract_archives $gentop $convenience
fi
# If we're not building shared, we need to use non_pic_objs
- test "$build_libtool_libs" != yes && libobjs="$non_pic_objects"
+ test yes = "$build_libtool_libs" || libobjs=$non_pic_objects
# Create the old-style object.
- reload_objs="$objs$old_deplibs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; /\.lib$/d; $lo2o" | $NL2SP`" $reload_conv_objs" ### testsuite: skip nested quoting test
+ reload_objs=$objs$old_deplibs' '`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; /\.lib$/d; $lo2o" | $NL2SP`' '$reload_conv_objs
- output="$obj"
+ output=$obj
func_execute_cmds "$reload_cmds" 'exit $?'
# Exit if we aren't doing a library object file.
exit $EXIT_SUCCESS
fi
- if test "$build_libtool_libs" != yes; then
+ test yes = "$build_libtool_libs" || {
if test -n "$gentop"; then
func_show_eval '${RM}r "$gentop"'
fi
# $show "echo timestamp > $libobj"
# $opt_dry_run || eval "echo timestamp > $libobj" || exit $?
exit $EXIT_SUCCESS
- fi
+ }
- if test -n "$pic_flag" || test "$pic_mode" != default; then
+ if test -n "$pic_flag" || test default != "$pic_mode"; then
# Only do commands if we really have different PIC objects.
reload_objs="$libobjs $reload_conv_objs"
- output="$libobj"
+ output=$libobj
func_execute_cmds "$reload_cmds" 'exit $?'
fi
output=$func_stripname_result.exe;;
esac
test -n "$vinfo" && \
- func_warning "\`-version-info' is ignored for programs"
+ func_warning "'-version-info' is ignored for programs"
test -n "$release" && \
- func_warning "\`-release' is ignored for programs"
+ func_warning "'-release' is ignored for programs"
- test "$preload" = yes \
- && test "$dlopen_support" = unknown \
- && test "$dlopen_self" = unknown \
- && test "$dlopen_self_static" = unknown && \
- func_warning "\`LT_INIT([dlopen])' not used. Assuming no dlopen support."
+ $preload \
+ && test unknown,unknown,unknown = "$dlopen_support,$dlopen_self,$dlopen_self_static" \
+ && func_warning "'LT_INIT([dlopen])' not used. Assuming no dlopen support."
case $host in
*-*-rhapsody* | *-*-darwin1.[012])
*-*-darwin*)
# Don't allow lazy linking, it breaks C++ global constructors
# But is supposedly fixed on 10.4 or later (yay!).
- if test "$tagname" = CXX ; then
+ if test CXX = "$tagname"; then
case ${MACOSX_DEPLOYMENT_TARGET-10.0} in
10.[0123])
- func_append compile_command " ${wl}-bind_at_load"
- func_append finalize_command " ${wl}-bind_at_load"
+ func_append compile_command " $wl-bind_at_load"
+ func_append finalize_command " $wl-bind_at_load"
;;
esac
fi
*) func_append new_libs " $deplib" ;;
esac
done
- compile_deplibs="$new_libs"
+ compile_deplibs=$new_libs
func_append compile_command " $compile_deplibs"
if test -n "$hardcode_libdir_flag_spec"; then
if test -n "$hardcode_libdir_separator"; then
if test -z "$hardcode_libdirs"; then
- hardcode_libdirs="$libdir"
+ hardcode_libdirs=$libdir
else
# Just accumulate the unique libdirs.
case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
fi
case $host in
*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
- testbindir=`${ECHO} "$libdir" | ${SED} -e 's*/lib$*/bin*'`
+ testbindir=`$ECHO "$libdir" | $SED -e 's*/lib$*/bin*'`
case :$dllsearchpath: in
*":$libdir:"*) ;;
::) dllsearchpath=$libdir;;
# Substitute the hardcoded libdirs into the rpath.
if test -n "$hardcode_libdir_separator" &&
test -n "$hardcode_libdirs"; then
- libdir="$hardcode_libdirs"
+ libdir=$hardcode_libdirs
eval rpath=\" $hardcode_libdir_flag_spec\"
fi
- compile_rpath="$rpath"
+ compile_rpath=$rpath
rpath=
hardcode_libdirs=
if test -n "$hardcode_libdir_flag_spec"; then
if test -n "$hardcode_libdir_separator"; then
if test -z "$hardcode_libdirs"; then
- hardcode_libdirs="$libdir"
+ hardcode_libdirs=$libdir
else
# Just accumulate the unique libdirs.
case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
# Substitute the hardcoded libdirs into the rpath.
if test -n "$hardcode_libdir_separator" &&
test -n "$hardcode_libdirs"; then
- libdir="$hardcode_libdirs"
+ libdir=$hardcode_libdirs
eval rpath=\" $hardcode_libdir_flag_spec\"
fi
- finalize_rpath="$rpath"
+ finalize_rpath=$rpath
- if test -n "$libobjs" && test "$build_old_libs" = yes; then
+ if test -n "$libobjs" && test yes = "$build_old_libs"; then
# Transform all the library objects into standard objects.
compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
fi
- func_generate_dlsyms "$outputname" "@PROGRAM@" "no"
+ func_generate_dlsyms "$outputname" "@PROGRAM@" false
# template prelinking step
if test -n "$prelink_cmds"; then
func_execute_cmds "$prelink_cmds" 'exit $?'
fi
- wrappers_required=yes
+ wrappers_required=:
case $host in
*cegcc* | *mingw32ce*)
# Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway.
- wrappers_required=no
+ wrappers_required=false
;;
*cygwin* | *mingw* )
- if test "$build_libtool_libs" != yes; then
- wrappers_required=no
- fi
+ test yes = "$build_libtool_libs" || wrappers_required=false
;;
*)
- if test "$need_relink" = no || test "$build_libtool_libs" != yes; then
- wrappers_required=no
+ if test no = "$need_relink" || test yes != "$build_libtool_libs"; then
+ wrappers_required=false
fi
;;
esac
- if test "$wrappers_required" = no; then
+ $wrappers_required || {
# Replace the output file specification.
compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
- link_command="$compile_command$compile_rpath"
+ link_command=$compile_command$compile_rpath
# We have no uninstalled library dependencies, so finalize right now.
exit_status=0
fi
# Delete the generated files.
- if test -f "$output_objdir/${outputname}S.${objext}"; then
- func_show_eval '$RM "$output_objdir/${outputname}S.${objext}"'
+ if test -f "$output_objdir/${outputname}S.$objext"; then
+ func_show_eval '$RM "$output_objdir/${outputname}S.$objext"'
fi
exit $exit_status
- fi
+ }
if test -n "$compile_shlibpath$finalize_shlibpath"; then
compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command"
fi
fi
- if test "$no_install" = yes; then
+ if test yes = "$no_install"; then
# We don't need to create a wrapper script.
- link_command="$compile_var$compile_command$compile_rpath"
+ link_command=$compile_var$compile_command$compile_rpath
# Replace the output file specification.
link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
# Delete the old output file.
exit $EXIT_SUCCESS
fi
- if test "$hardcode_action" = relink; then
- # Fast installation is not supported
- link_command="$compile_var$compile_command$compile_rpath"
- relink_command="$finalize_var$finalize_command$finalize_rpath"
+ case $hardcode_action,$fast_install in
+ relink,*)
+ # Fast installation is not supported
+ link_command=$compile_var$compile_command$compile_rpath
+ relink_command=$finalize_var$finalize_command$finalize_rpath
- func_warning "this platform does not like uninstalled shared libraries"
- func_warning "\`$output' will be relinked during installation"
- else
- if test "$fast_install" != no; then
- link_command="$finalize_var$compile_command$finalize_rpath"
- if test "$fast_install" = yes; then
- relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'`
- else
- # fast_install is set to needless
- relink_command=
- fi
- else
- link_command="$compile_var$compile_command$compile_rpath"
- relink_command="$finalize_var$finalize_command$finalize_rpath"
- fi
- fi
+ func_warning "this platform does not like uninstalled shared libraries"
+ func_warning "'$output' will be relinked during installation"
+ ;;
+ *,yes)
+ link_command=$finalize_var$compile_command$finalize_rpath
+ relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'`
+ ;;
+ *,no)
+ link_command=$compile_var$compile_command$compile_rpath
+ relink_command=$finalize_var$finalize_command$finalize_rpath
+ ;;
+ *,needless)
+ link_command=$finalize_var$compile_command$finalize_rpath
+ relink_command=
+ ;;
+ esac
# Replace the output file specification.
link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'`
func_dirname_and_basename "$output" "" "."
output_name=$func_basename_result
output_path=$func_dirname_result
- cwrappersource="$output_path/$objdir/lt-$output_name.c"
- cwrapper="$output_path/$output_name.exe"
+ cwrappersource=$output_path/$objdir/lt-$output_name.c
+ cwrapper=$output_path/$output_name.exe
$RM $cwrappersource $cwrapper
trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15
trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15
$opt_dry_run || {
# note: this script will not be executed, so do not chmod.
- if test "x$build" = "x$host" ; then
+ if test "x$build" = "x$host"; then
$cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result
else
func_emit_wrapper no > $func_ltwrapper_scriptname_result
# See if we need to build an old-fashioned archive.
for oldlib in $oldlibs; do
- if test "$build_libtool_libs" = convenience; then
- oldobjs="$libobjs_save $symfileobj"
- addlibs="$convenience"
- build_libtool_libs=no
- else
- if test "$build_libtool_libs" = module; then
- oldobjs="$libobjs_save"
+ case $build_libtool_libs in
+ convenience)
+ oldobjs="$libobjs_save $symfileobj"
+ addlibs=$convenience
build_libtool_libs=no
- else
+ ;;
+ module)
+ oldobjs=$libobjs_save
+ addlibs=$old_convenience
+ build_libtool_libs=no
+ ;;
+ *)
oldobjs="$old_deplibs $non_pic_objects"
- if test "$preload" = yes && test -f "$symfileobj"; then
- func_append oldobjs " $symfileobj"
- fi
- fi
- addlibs="$old_convenience"
- fi
+ $preload && test -f "$symfileobj" \
+ && func_append oldobjs " $symfileobj"
+ addlibs=$old_convenience
+ ;;
+ esac
if test -n "$addlibs"; then
- gentop="$output_objdir/${outputname}x"
+ gentop=$output_objdir/${outputname}x
func_append generated " $gentop"
func_extract_archives $gentop $addlibs
fi
# Do each command in the archive commands.
- if test -n "$old_archive_from_new_cmds" && test "$build_libtool_libs" = yes; then
+ if test -n "$old_archive_from_new_cmds" && test yes = "$build_libtool_libs"; then
cmds=$old_archive_from_new_cmds
else
# Add any objects from preloaded convenience libraries
if test -n "$dlprefiles"; then
- gentop="$output_objdir/${outputname}x"
+ gentop=$output_objdir/${outputname}x
func_append generated " $gentop"
func_extract_archives $gentop $dlprefiles
:
else
echo "copying selected object files to avoid basename conflicts..."
- gentop="$output_objdir/${outputname}x"
+ gentop=$output_objdir/${outputname}x
func_append generated " $gentop"
func_mkdir_p "$gentop"
save_oldobjs=$oldobjs
for obj in $save_oldobjs
do
func_basename "$obj"
- objbase="$func_basename_result"
+ objbase=$func_basename_result
case " $oldobjs " in
" ") oldobjs=$obj ;;
*[\ /]"$objbase "*)
else
# the above command should be used before it gets too long
oldobjs=$objlist
- if test "$obj" = "$last_oldobj" ; then
+ if test "$obj" = "$last_oldobj"; then
RANLIB=$save_RANLIB
fi
test -z "$concat_cmds" || concat_cmds=$concat_cmds~
- eval concat_cmds=\"\${concat_cmds}$old_archive_cmds\"
+ eval concat_cmds=\"\$concat_cmds$old_archive_cmds\"
objlist=
len=$len0
fi
done
RANLIB=$save_RANLIB
oldobjs=$objlist
- if test "X$oldobjs" = "X" ; then
+ if test -z "$oldobjs"; then
eval cmds=\"\$concat_cmds\"
else
eval cmds=\"\$concat_cmds~\$old_archive_cmds\"
case $output in
*.la)
old_library=
- test "$build_old_libs" = yes && old_library="$libname.$libext"
+ test yes = "$build_old_libs" && old_library=$libname.$libext
func_verbose "creating $output"
# Preserve any variables that may affect compiler behavior
fi
done
# Quote the link command for shipping.
- relink_command="(cd `pwd`; $SHELL $progpath $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
+ relink_command="(cd `pwd`; $SHELL \"$progpath\" $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
- if test "$hardcode_automatic" = yes ; then
+ if test yes = "$hardcode_automatic"; then
relink_command=
fi
# Only create the output if not a dry run.
$opt_dry_run || {
for installed in no yes; do
- if test "$installed" = yes; then
+ if test yes = "$installed"; then
if test -z "$install_libdir"; then
break
fi
- output="$output_objdir/$outputname"i
+ output=$output_objdir/${outputname}i
# Replace all uninstalled libtool libraries with the installed ones
newdependency_libs=
for deplib in $dependency_libs; do
case $deplib in
*.la)
func_basename "$deplib"
- name="$func_basename_result"
+ name=$func_basename_result
func_resolve_sysroot "$deplib"
- eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result`
+ eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result`
test -z "$libdir" && \
- func_fatal_error "\`$deplib' is not a valid libtool archive"
+ func_fatal_error "'$deplib' is not a valid libtool archive"
func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name"
;;
-L*)
*) func_append newdependency_libs " $deplib" ;;
esac
done
- dependency_libs="$newdependency_libs"
+ dependency_libs=$newdependency_libs
newdlfiles=
for lib in $dlfiles; do
case $lib in
*.la)
func_basename "$lib"
- name="$func_basename_result"
- eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
+ name=$func_basename_result
+ eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
test -z "$libdir" && \
- func_fatal_error "\`$lib' is not a valid libtool archive"
+ func_fatal_error "'$lib' is not a valid libtool archive"
func_append newdlfiles " ${lt_sysroot:+=}$libdir/$name"
;;
*) func_append newdlfiles " $lib" ;;
esac
done
- dlfiles="$newdlfiles"
+ dlfiles=$newdlfiles
newdlprefiles=
for lib in $dlprefiles; do
case $lib in
# didn't already link the preopened objects directly into
# the library:
func_basename "$lib"
- name="$func_basename_result"
- eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
+ name=$func_basename_result
+ eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
test -z "$libdir" && \
- func_fatal_error "\`$lib' is not a valid libtool archive"
+ func_fatal_error "'$lib' is not a valid libtool archive"
func_append newdlprefiles " ${lt_sysroot:+=}$libdir/$name"
;;
esac
done
- dlprefiles="$newdlprefiles"
+ dlprefiles=$newdlprefiles
else
newdlfiles=
for lib in $dlfiles; do
case $lib in
- [\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;;
+ [\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;;
*) abs=`pwd`"/$lib" ;;
esac
func_append newdlfiles " $abs"
done
- dlfiles="$newdlfiles"
+ dlfiles=$newdlfiles
newdlprefiles=
for lib in $dlprefiles; do
case $lib in
- [\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;;
+ [\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;;
*) abs=`pwd`"/$lib" ;;
esac
func_append newdlprefiles " $abs"
done
- dlprefiles="$newdlprefiles"
+ dlprefiles=$newdlprefiles
fi
$RM $output
# place dlname in correct position for cygwin
case $host,$output,$installed,$module,$dlname in
*cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll)
# If a -bindir argument was supplied, place the dll there.
- if test "x$bindir" != x ;
- then
+ if test -n "$bindir"; then
func_relative_path "$install_libdir" "$bindir"
- tdlname=$func_relative_path_result$dlname
+ tdlname=$func_relative_path_result/$dlname
else
# Otherwise fall back on heuristic.
tdlname=../bin/$dlname
esac
$ECHO > $output "\
# $outputname - a libtool library file
-# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
+# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
#
# Please DO NOT delete this file!
# It is necessary for linking the library.
# The name of the static archive.
old_library='$old_library'
-# Linker flags that can not go in dependency_libs.
+# Linker flags that cannot go in dependency_libs.
inherited_linker_flags='$new_inherited_linker_flags'
# Libraries that this one depends upon.
# Directory that this library needs to be installed in:
libdir='$install_libdir'"
- if test "$installed" = no && test "$need_relink" = yes; then
+ if test no,yes = "$installed,$need_relink"; then
$ECHO >> $output "\
relink_command=\"$relink_command\""
fi
exit $EXIT_SUCCESS
}
-{ test "$opt_mode" = link || test "$opt_mode" = relink; } &&
- func_mode_link ${1+"$@"}
+if test link = "$opt_mode" || test relink = "$opt_mode"; then
+ func_mode_link ${1+"$@"}
+fi
# func_mode_uninstall arg...
func_mode_uninstall ()
{
- $opt_debug
- RM="$nonopt"
+ $debug_cmd
+
+ RM=$nonopt
files=
- rmforce=
+ rmforce=false
exit_status=0
# This variable tells wrapper scripts just to set variables rather
# than running their programs.
- libtool_install_magic="$magic"
+ libtool_install_magic=$magic
for arg
do
case $arg in
- -f) func_append RM " $arg"; rmforce=yes ;;
+ -f) func_append RM " $arg"; rmforce=: ;;
-*) func_append RM " $arg" ;;
*) func_append files " $arg" ;;
esac
for file in $files; do
func_dirname "$file" "" "."
- dir="$func_dirname_result"
- if test "X$dir" = X.; then
- odir="$objdir"
+ dir=$func_dirname_result
+ if test . = "$dir"; then
+ odir=$objdir
else
- odir="$dir/$objdir"
+ odir=$dir/$objdir
fi
func_basename "$file"
- name="$func_basename_result"
- test "$opt_mode" = uninstall && odir="$dir"
+ name=$func_basename_result
+ test uninstall = "$opt_mode" && odir=$dir
# Remember odir for removal later, being careful to avoid duplicates
- if test "$opt_mode" = clean; then
+ if test clean = "$opt_mode"; then
case " $rmdirs " in
*" $odir "*) ;;
*) func_append rmdirs " $odir" ;;
elif test -d "$file"; then
exit_status=1
continue
- elif test "$rmforce" = yes; then
+ elif $rmforce; then
continue
fi
- rmfiles="$file"
+ rmfiles=$file
case $name in
*.la)
done
test -n "$old_library" && func_append rmfiles " $odir/$old_library"
- case "$opt_mode" in
+ case $opt_mode in
clean)
case " $library_names " in
*" $dlname "*) ;;
uninstall)
if test -n "$library_names"; then
# Do each command in the postuninstall commands.
- func_execute_cmds "$postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1'
+ func_execute_cmds "$postuninstall_cmds" '$rmforce || exit_status=1'
fi
if test -n "$old_library"; then
# Do each command in the old_postuninstall commands.
- func_execute_cmds "$old_postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1'
+ func_execute_cmds "$old_postuninstall_cmds" '$rmforce || exit_status=1'
fi
# FIXME: should reinstall the best remaining shared library.
;;
func_source $dir/$name
# Add PIC object to the list of files to remove.
- if test -n "$pic_object" &&
- test "$pic_object" != none; then
+ if test -n "$pic_object" && test none != "$pic_object"; then
func_append rmfiles " $dir/$pic_object"
fi
# Add non-PIC object to the list of files to remove.
- if test -n "$non_pic_object" &&
- test "$non_pic_object" != none; then
+ if test -n "$non_pic_object" && test none != "$non_pic_object"; then
func_append rmfiles " $dir/$non_pic_object"
fi
fi
;;
*)
- if test "$opt_mode" = clean ; then
+ if test clean = "$opt_mode"; then
noexename=$name
case $file in
*.exe)
# note $name still contains .exe if it was in $file originally
# as does the version of $file that was added into $rmfiles
- func_append rmfiles " $odir/$name $odir/${name}S.${objext}"
- if test "$fast_install" = yes && test -n "$relink_command"; then
+ func_append rmfiles " $odir/$name $odir/${name}S.$objext"
+ if test yes = "$fast_install" && test -n "$relink_command"; then
func_append rmfiles " $odir/lt-$name"
fi
- if test "X$noexename" != "X$name" ; then
- func_append rmfiles " $odir/lt-${noexename}.c"
+ if test "X$noexename" != "X$name"; then
+ func_append rmfiles " $odir/lt-$noexename.c"
fi
fi
fi
func_show_eval "$RM $rmfiles" 'exit_status=1'
done
- # Try to remove the ${objdir}s in the directories where we deleted files
+ # Try to remove the $objdir's in the directories where we deleted files
for dir in $rmdirs; do
if test -d "$dir"; then
func_show_eval "rmdir $dir >/dev/null 2>&1"
exit $exit_status
}
-{ test "$opt_mode" = uninstall || test "$opt_mode" = clean; } &&
- func_mode_uninstall ${1+"$@"}
+if test uninstall = "$opt_mode" || test clean = "$opt_mode"; then
+ func_mode_uninstall ${1+"$@"}
+fi
test -z "$opt_mode" && {
- help="$generic_help"
+ help=$generic_help
func_fatal_help "you must specify a MODE"
}
test -z "$exec_cmd" && \
- func_fatal_help "invalid operation mode \`$opt_mode'"
+ func_fatal_help "invalid operation mode '$opt_mode'"
if test -n "$exec_cmd"; then
eval exec "$exec_cmd"
# The TAGs below are defined such that we never get into a situation
-# in which we disable both kinds of libraries. Given conflicting
+# where we disable both kinds of libraries. Given conflicting
# choices, we go for a static library, that is the most portable,
# since we can't tell whether shared libraries were disabled because
# the user asked for that or because the platform doesn't support
# mode:shell-script
# sh-indentation:2
# End:
-# vi:sw=2
-
scriptversion=2013-10-28.13; # UTC
-# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+# Copyright (C) 1996-2014 Free Software Foundation, Inc.
# Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
# This program is free software; you can redistribute it and/or modify
-.TH PNG 5 "August 21, 2014"
+.TH PNG 5 "January 15, 2016"
.SH NAME
png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION
PNG 1.2 specification, July 1999:
.IP
.br
-http://www.libpng.org/pub/png
+http://png-mng.sourceforge.net/pub/png/spec/1.2/
.LP
PNG 1.0 specification, October 1996:
.IP
.br
or (as a W3C Recommendation) at
.br
-http://www.w3.org/TR/REC-png.html
+http://www.w3.org/TR/REC-png-961001
.SH AUTHORS
This man page: Glenn Randers-Pehrson
.LP
/* png.c - location for general purpose libpng functions
*
- * Last changed in libpng 1.6.12 [June 12, 2014]
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.19 [November 12, 2015]
+ * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
#include "pngpriv.h"
/* Generate a compiler error if there is an old png.h in the search path. */
-typedef png_libpng_version_1_6_13 Your_png_h_is_not_version_1_6_13;
+typedef png_libpng_version_1_6_21 Your_png_h_is_not_version_1_6_21;
/* Tells libpng that we have already handled the first "num_bytes" bytes
* of the PNG file signature. If the PNG data is embedded into another
void PNGAPI
png_set_sig_bytes(png_structrp png_ptr, int num_bytes)
{
+ unsigned int nb = (unsigned int)num_bytes;
+
png_debug(1, "in png_set_sig_bytes");
if (png_ptr == NULL)
return;
- if (num_bytes > 8)
+ if (num_bytes < 0)
+ nb = 0;
+
+ if (nb > 8)
png_error(png_ptr, "Too many bytes for PNG signature");
- png_ptr->sig_bytes = (png_byte)(num_bytes < 0 ? 0 : num_bytes);
+ png_ptr->sig_bytes = (png_byte)nb;
}
/* Checks whether the supplied bytes match the PNG signature. We allow
return ((int)(memcmp(&sig[start], &png_signature[start], num_to_check)));
}
-#endif /* PNG_READ_SUPPORTED */
+#endif /* READ */
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
/* Function to allocate memory for zlib */
void /* PRIVATE */
png_reset_crc(png_structrp png_ptr)
{
- /* The cast is safe because the crc is a 32 bit value. */
+ /* The cast is safe because the crc is a 32-bit value. */
png_ptr->crc = (png_uint_32)crc32(0, Z_NULL, 0);
}
{
int need_crc = 1;
- if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name))
+ if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name) != 0)
{
if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) ==
(PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN))
else /* critical */
{
- if (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_IGNORE)
+ if ((png_ptr->flags & PNG_FLAG_CRC_CRITICAL_IGNORE) != 0)
need_crc = 0;
}
/* 'uLong' is defined in zlib.h as unsigned long; this means that on some
- * systems it is a 64 bit value. crc32, however, returns 32 bits so the
+ * systems it is a 64-bit value. crc32, however, returns 32 bits so the
* following cast is safe. 'uInt' may be no more than 16 bits, so it is
* necessary to perform a loop here.
*/
- if (need_crc && length > 0)
+ if (need_crc != 0 && length > 0)
{
uLong crc = png_ptr->crc; /* Should never issue a warning */
do
{
uInt safe_length = (uInt)length;
+#ifndef __COVERITY__
if (safe_length == 0)
safe_length = (uInt)-1; /* evil, but safe */
+#endif
crc = crc32(crc, ptr, safe_length);
int
png_user_version_check(png_structrp png_ptr, png_const_charp user_png_ver)
{
+ /* Libpng versions 1.0.0 and later are binary compatible if the version
+ * string matches through the second '.'; we must recompile any
+ * applications that use any older library version.
+ */
+
if (user_png_ver != NULL)
{
- int i = 0;
+ int i = -1;
+ int found_dots = 0;
do
{
- if (user_png_ver[i] != png_libpng_ver[i])
+ i++;
+ if (user_png_ver[i] != PNG_LIBPNG_VER_STRING[i])
png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH;
- } while (png_libpng_ver[i++]);
+ if (user_png_ver[i] == '.')
+ found_dots++;
+ } while (found_dots < 2 && user_png_ver[i] != 0 &&
+ PNG_LIBPNG_VER_STRING[i] != 0);
}
else
png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH;
- if (png_ptr->flags & PNG_FLAG_LIBRARY_MISMATCH)
+ if ((png_ptr->flags & PNG_FLAG_LIBRARY_MISMATCH) != 0)
{
- /* Libpng 0.90 and later are binary incompatible with libpng 0.89, so
- * we must recompile any applications that use any older library version.
- * For versions after libpng 1.0, we will be compatible, so we need
- * only check the first and third digits (note that when we reach version
- * 1.10 we will need to check the fourth symbol, namely user_png_ver[3]).
- */
- if (user_png_ver == NULL || user_png_ver[0] != png_libpng_ver[0] ||
- (user_png_ver[0] == '1' && (user_png_ver[2] != png_libpng_ver[2] ||
- user_png_ver[3] != png_libpng_ver[3])) ||
- (user_png_ver[0] == '0' && user_png_ver[2] < '9'))
- {
#ifdef PNG_WARNINGS_SUPPORTED
- size_t pos = 0;
- char m[128];
+ size_t pos = 0;
+ char m[128];
- pos = png_safecat(m, (sizeof m), pos,
- "Application built with libpng-");
- pos = png_safecat(m, (sizeof m), pos, user_png_ver);
- pos = png_safecat(m, (sizeof m), pos, " but running with ");
- pos = png_safecat(m, (sizeof m), pos, png_libpng_ver);
- PNG_UNUSED(pos)
+ pos = png_safecat(m, (sizeof m), pos,
+ "Application built with libpng-");
+ pos = png_safecat(m, (sizeof m), pos, user_png_ver);
+ pos = png_safecat(m, (sizeof m), pos, " but running with ");
+ pos = png_safecat(m, (sizeof m), pos, PNG_LIBPNG_VER_STRING);
+ PNG_UNUSED(pos)
- png_warning(png_ptr, m);
+ png_warning(png_ptr, m);
#endif
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
- png_ptr->flags = 0;
+ png_ptr->flags = 0;
#endif
- return 0;
- }
+ return 0;
}
/* Success return. */
create_struct.user_height_max = PNG_USER_HEIGHT_MAX;
# ifdef PNG_USER_CHUNK_CACHE_MAX
- /* Added at libpng-1.2.43 and 1.4.0 */
- create_struct.user_chunk_cache_max = PNG_USER_CHUNK_CACHE_MAX;
+ /* Added at libpng-1.2.43 and 1.4.0 */
+ create_struct.user_chunk_cache_max = PNG_USER_CHUNK_CACHE_MAX;
# endif
# ifdef PNG_USER_CHUNK_MALLOC_MAX
- /* Added at libpng-1.2.43 and 1.4.1, required only for read but exists
- * in png_struct regardless.
- */
- create_struct.user_chunk_malloc_max = PNG_USER_CHUNK_MALLOC_MAX;
+ /* Added at libpng-1.2.43 and 1.4.1, required only for read but exists
+ * in png_struct regardless.
+ */
+ create_struct.user_chunk_malloc_max = PNG_USER_CHUNK_MALLOC_MAX;
# endif
# endif
# ifdef PNG_SETJMP_SUPPORTED
if (!setjmp(create_jmp_buf))
+# endif
{
+# ifdef PNG_SETJMP_SUPPORTED
/* Temporarily fake out the longjmp information until we have
* successfully completed this function. This only works if we have
* setjmp() support compiled in, but it is safe - this stuff should
create_struct.jmp_buf_ptr = &create_jmp_buf;
create_struct.jmp_buf_size = 0; /*stack allocation*/
create_struct.longjmp_fn = longjmp;
-# else
- {
# endif
/* Call the general version checker (shared with read and write code):
*/
- if (png_user_version_check(&create_struct, user_png_ver))
+ if (png_user_version_check(&create_struct, user_png_ver) != 0)
{
png_structrp png_ptr = png_voidcast(png_structrp,
png_malloc_warn(&create_struct, (sizeof *png_ptr)));
create_struct.zstream.opaque = png_ptr;
# ifdef PNG_SETJMP_SUPPORTED
- /* Eliminate the local error handling: */
- create_struct.jmp_buf_ptr = NULL;
- create_struct.jmp_buf_size = 0;
- create_struct.longjmp_fn = 0;
+ /* Eliminate the local error handling: */
+ create_struct.jmp_buf_ptr = NULL;
+ create_struct.jmp_buf_size = 0;
+ create_struct.longjmp_fn = 0;
# endif
*png_ptr = create_struct;
free(info_ptr);
info_ptr = png_voidcast(png_inforp, png_malloc_base(NULL,
(sizeof *info_ptr)));
+ if (info_ptr == NULL)
+ return;
*ptr_ptr = info_ptr;
}
#ifdef PNG_TEXT_SUPPORTED
/* Free text item num or (if num == -1) all text items */
- if ((mask & PNG_FREE_TEXT) & info_ptr->free_me)
+ if (info_ptr->text != 0 &&
+ ((mask & PNG_FREE_TEXT) & info_ptr->free_me) != 0)
{
if (num != -1)
{
- if (info_ptr->text && info_ptr->text[num].key)
- {
- png_free(png_ptr, info_ptr->text[num].key);
- info_ptr->text[num].key = NULL;
- }
+ png_free(png_ptr, info_ptr->text[num].key);
+ info_ptr->text[num].key = NULL;
}
else
{
int i;
+
for (i = 0; i < info_ptr->num_text; i++)
- png_free_data(png_ptr, info_ptr, PNG_FREE_TEXT, i);
+ png_free(png_ptr, info_ptr->text[i].key);
+
png_free(png_ptr, info_ptr->text);
info_ptr->text = NULL;
- info_ptr->num_text=0;
+ info_ptr->num_text = 0;
}
}
#endif
#ifdef PNG_tRNS_SUPPORTED
/* Free any tRNS entry */
- if ((mask & PNG_FREE_TRNS) & info_ptr->free_me)
+ if (((mask & PNG_FREE_TRNS) & info_ptr->free_me) != 0)
{
+ info_ptr->valid &= ~PNG_INFO_tRNS;
png_free(png_ptr, info_ptr->trans_alpha);
info_ptr->trans_alpha = NULL;
- info_ptr->valid &= ~PNG_INFO_tRNS;
+ info_ptr->num_trans = 0;
}
#endif
#ifdef PNG_sCAL_SUPPORTED
/* Free any sCAL entry */
- if ((mask & PNG_FREE_SCAL) & info_ptr->free_me)
+ if (((mask & PNG_FREE_SCAL) & info_ptr->free_me) != 0)
{
png_free(png_ptr, info_ptr->scal_s_width);
png_free(png_ptr, info_ptr->scal_s_height);
#ifdef PNG_pCAL_SUPPORTED
/* Free any pCAL entry */
- if ((mask & PNG_FREE_PCAL) & info_ptr->free_me)
+ if (((mask & PNG_FREE_PCAL) & info_ptr->free_me) != 0)
{
png_free(png_ptr, info_ptr->pcal_purpose);
png_free(png_ptr, info_ptr->pcal_units);
info_ptr->pcal_purpose = NULL;
info_ptr->pcal_units = NULL;
+
if (info_ptr->pcal_params != NULL)
{
- unsigned int i;
+ int i;
+
for (i = 0; i < info_ptr->pcal_nparams; i++)
- {
png_free(png_ptr, info_ptr->pcal_params[i]);
- info_ptr->pcal_params[i] = NULL;
- }
+
png_free(png_ptr, info_ptr->pcal_params);
info_ptr->pcal_params = NULL;
}
#ifdef PNG_iCCP_SUPPORTED
/* Free any profile entry */
- if ((mask & PNG_FREE_ICCP) & info_ptr->free_me)
+ if (((mask & PNG_FREE_ICCP) & info_ptr->free_me) != 0)
{
png_free(png_ptr, info_ptr->iccp_name);
png_free(png_ptr, info_ptr->iccp_profile);
#ifdef PNG_sPLT_SUPPORTED
/* Free a given sPLT entry, or (if num == -1) all sPLT entries */
- if ((mask & PNG_FREE_SPLT) & info_ptr->free_me)
+ if (info_ptr->splt_palettes != 0 &&
+ ((mask & PNG_FREE_SPLT) & info_ptr->free_me) != 0)
{
if (num != -1)
{
- if (info_ptr->splt_palettes)
- {
- png_free(png_ptr, info_ptr->splt_palettes[num].name);
- png_free(png_ptr, info_ptr->splt_palettes[num].entries);
- info_ptr->splt_palettes[num].name = NULL;
- info_ptr->splt_palettes[num].entries = NULL;
- }
+ png_free(png_ptr, info_ptr->splt_palettes[num].name);
+ png_free(png_ptr, info_ptr->splt_palettes[num].entries);
+ info_ptr->splt_palettes[num].name = NULL;
+ info_ptr->splt_palettes[num].entries = NULL;
}
else
{
- if (info_ptr->splt_palettes_num)
- {
- int i;
- for (i = 0; i < info_ptr->splt_palettes_num; i++)
- png_free_data(png_ptr, info_ptr, PNG_FREE_SPLT, (int)i);
+ int i;
- png_free(png_ptr, info_ptr->splt_palettes);
- info_ptr->splt_palettes = NULL;
- info_ptr->splt_palettes_num = 0;
+ for (i = 0; i < info_ptr->splt_palettes_num; i++)
+ {
+ png_free(png_ptr, info_ptr->splt_palettes[i].name);
+ png_free(png_ptr, info_ptr->splt_palettes[i].entries);
}
+
+ png_free(png_ptr, info_ptr->splt_palettes);
+ info_ptr->splt_palettes = NULL;
+ info_ptr->splt_palettes_num = 0;
info_ptr->valid &= ~PNG_INFO_sPLT;
}
}
#endif
#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
- if ((mask & PNG_FREE_UNKN) & info_ptr->free_me)
+ if (info_ptr->unknown_chunks != 0 &&
+ ((mask & PNG_FREE_UNKN) & info_ptr->free_me) != 0)
{
if (num != -1)
{
- if (info_ptr->unknown_chunks)
- {
- png_free(png_ptr, info_ptr->unknown_chunks[num].data);
- info_ptr->unknown_chunks[num].data = NULL;
- }
+ png_free(png_ptr, info_ptr->unknown_chunks[num].data);
+ info_ptr->unknown_chunks[num].data = NULL;
}
else
{
int i;
- if (info_ptr->unknown_chunks_num)
- {
- for (i = 0; i < info_ptr->unknown_chunks_num; i++)
- png_free_data(png_ptr, info_ptr, PNG_FREE_UNKN, (int)i);
+ for (i = 0; i < info_ptr->unknown_chunks_num; i++)
+ png_free(png_ptr, info_ptr->unknown_chunks[i].data);
- png_free(png_ptr, info_ptr->unknown_chunks);
- info_ptr->unknown_chunks = NULL;
- info_ptr->unknown_chunks_num = 0;
- }
+ png_free(png_ptr, info_ptr->unknown_chunks);
+ info_ptr->unknown_chunks = NULL;
+ info_ptr->unknown_chunks_num = 0;
}
}
#endif
#ifdef PNG_hIST_SUPPORTED
/* Free any hIST entry */
- if ((mask & PNG_FREE_HIST) & info_ptr->free_me)
+ if (((mask & PNG_FREE_HIST) & info_ptr->free_me) != 0)
{
png_free(png_ptr, info_ptr->hist);
info_ptr->hist = NULL;
#endif
/* Free any PLTE entry that was internally allocated */
- if ((mask & PNG_FREE_PLTE) & info_ptr->free_me)
+ if (((mask & PNG_FREE_PLTE) & info_ptr->free_me) != 0)
{
png_free(png_ptr, info_ptr->palette);
info_ptr->palette = NULL;
#ifdef PNG_INFO_IMAGE_SUPPORTED
/* Free any image bits attached to the info structure */
- if ((mask & PNG_FREE_ROWS) & info_ptr->free_me)
+ if (((mask & PNG_FREE_ROWS) & info_ptr->free_me) != 0)
{
- if (info_ptr->row_pointers)
+ if (info_ptr->row_pointers != 0)
{
png_uint_32 row;
for (row = 0; row < info_ptr->height; row++)
- {
png_free(png_ptr, info_ptr->row_pointers[row]);
- info_ptr->row_pointers[row] = NULL;
- }
+
png_free(png_ptr, info_ptr->row_pointers);
info_ptr->row_pointers = NULL;
}
info_ptr->free_me &= ~mask;
}
-#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */
+#endif /* READ || WRITE */
/* This function returns a pointer to the io_ptr associated with the user
* functions. The application should free any memory associated with this
}
# endif
-#ifdef PNG_SAVE_INT_32_SUPPORTED
-/* The png_save_int_32 function assumes integers are stored in two's
- * complement format. If this isn't the case, then this routine needs to
- * be modified to write data in two's complement format. Note that,
- * the following works correctly even if png_int_32 has more than 32 bits
- * (compare the more complex code required on read for sign extension.)
+# ifdef PNG_SAVE_INT_32_SUPPORTED
+/* PNG signed integers are saved in 32-bit 2's complement format. ANSI C-90
+ * defines a cast of a signed integer to an unsigned integer either to preserve
+ * the value, if it is positive, or to calculate:
+ *
+ * (UNSIGNED_MAX+1) + integer
+ *
+ * Where UNSIGNED_MAX is the appropriate maximum unsigned value, so when the
+ * negative integral value is added the result will be an unsigned value
+ * correspnding to the 2's complement representation.
*/
void PNGAPI
png_save_int_32(png_bytep buf, png_int_32 i)
{
- buf[0] = (png_byte)((i >> 24) & 0xff);
- buf[1] = (png_byte)((i >> 16) & 0xff);
- buf[2] = (png_byte)((i >> 8) & 0xff);
- buf[3] = (png_byte)(i & 0xff);
+ png_save_uint_32(buf, i);
}
-#endif
+# endif
# ifdef PNG_TIME_RFC1123_SUPPORTED
/* Convert the supplied time into an RFC 1123 string suitable for use in
APPEND(':');
APPEND_NUMBER(PNG_NUMBER_FORMAT_02u, (unsigned)ptime->second);
APPEND_STRING(" +0000"); /* This reliably terminates the buffer */
+ PNG_UNUSED (pos)
# undef APPEND
# undef APPEND_NUMBER
return 1;
}
-# if PNG_LIBPNG_VER < 10700
+# if PNG_LIBPNG_VER < 10700
/* To do: remove the following from libpng-1.7 */
/* Original API that uses a private buffer in png_struct.
* Deprecated because it causes png_struct to carry a spurious temporary
if (png_ptr != NULL)
{
/* The only failure above if png_ptr != NULL is from an invalid ptime */
- if (!png_convert_to_rfc1123_buffer(png_ptr->time_buffer, ptime))
+ if (png_convert_to_rfc1123_buffer(png_ptr->time_buffer, ptime) == 0)
png_warning(png_ptr, "Ignoring invalid time value");
else
return NULL;
}
-# endif
-# endif /* PNG_TIME_RFC1123_SUPPORTED */
+# endif /* LIBPNG_VER < 10700 */
+# endif /* TIME_RFC1123 */
-#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */
+#endif /* READ || WRITE */
png_const_charp PNGAPI
png_get_copyright(png_const_structrp png_ptr)
#else
# ifdef __STDC__
return PNG_STRING_NEWLINE \
- "libpng version 1.6.13 - August 21, 2014" PNG_STRING_NEWLINE \
- "Copyright (c) 1998-2014 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
- "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
- "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
- PNG_STRING_NEWLINE;
+ "libpng version 1.6.21 - January 15, 2016" PNG_STRING_NEWLINE \
+ "Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson" \
+ PNG_STRING_NEWLINE \
+ "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
+ "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
+ PNG_STRING_NEWLINE;
# else
- return "libpng version 1.6.13 - August 21, 2014\
- Copyright (c) 1998-2014 Glenn Randers-Pehrson\
+ return "libpng version 1.6.21 - January 15, 2016\
+ Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
# endif
#ifdef __STDC__
return PNG_HEADER_VERSION_STRING
# ifndef PNG_READ_SUPPORTED
- " (NO READ SUPPORT)"
+ " (NO READ SUPPORT)"
# endif
- PNG_STRING_NEWLINE;
+ PNG_STRING_NEWLINE;
#else
return PNG_HEADER_VERSION_STRING;
#endif
for (i = 0, v = 0; i < num_palette; i++, v += color_inc)
{
- palette[i].red = (png_byte)v;
- palette[i].green = (png_byte)v;
- palette[i].blue = (png_byte)v;
+ palette[i].red = (png_byte)(v & 0xff);
+ palette[i].green = (png_byte)(v & 0xff);
+ palette[i].blue = (png_byte)(v & 0xff);
}
}
#endif
{
p -= 5;
- if (!memcmp(chunk_name, p, 4))
+ if (memcmp(chunk_name, p, 4) == 0)
return p[4];
}
while (p > p_end);
/* WARNING: this resets the window bits to the maximum! */
return (inflateReset(&png_ptr->zstream));
}
-#endif /* PNG_READ_SUPPORTED */
+#endif /* READ */
/* This function was added to libpng-1.0.7 */
png_uint_32 PNGAPI
return((png_uint_32)PNG_LIBPNG_VER);
}
-
-
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
/* Ensure that png_ptr->zstream.msg holds some appropriate error message string.
* If it doesn't 'ret' is used to set it to something appropriate, even in cases
png_fixed_point gtest;
if ((colorspace->flags & PNG_COLORSPACE_HAVE_GAMMA) != 0 &&
- (!png_muldiv(>est, colorspace->gamma, PNG_FP_1, gAMA) ||
- png_gamma_significant(gtest)))
+ (png_muldiv(>est, colorspace->gamma, PNG_FP_1, gAMA) == 0 ||
+ png_gamma_significant(gtest) != 0))
{
/* Either this is an sRGB image, in which case the calculated gamma
* approximation should match, or this is an image with a profile and the
png_colorspacerp colorspace, png_fixed_point gAMA)
{
/* Changed in libpng-1.5.4 to limit the values to ensure overflow can't
- * occur. Since the fixed point representation is assymetrical it is
+ * occur. Since the fixed point representation is asymetrical it is
* possible for 1/gamma to overflow the limit of 21474 and this means the
* gamma value must be at least 5/100000 and hence at most 20000.0. For
* safety the limits here are a little narrower. The values are 0.00016 to
errmsg = "gamma value out of range";
# ifdef PNG_READ_gAMA_SUPPORTED
- /* Allow the application to set the gamma value more than once */
- else if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0 &&
- (colorspace->flags & PNG_COLORSPACE_FROM_gAMA) != 0)
- errmsg = "duplicate";
+ /* Allow the application to set the gamma value more than once */
+ else if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0 &&
+ (colorspace->flags & PNG_COLORSPACE_FROM_gAMA) != 0)
+ errmsg = "duplicate";
# endif
/* Do nothing if the colorspace is already invalid */
- else if (colorspace->flags & PNG_COLORSPACE_INVALID)
+ else if ((colorspace->flags & PNG_COLORSPACE_INVALID) != 0)
return;
else
{
- if (png_colorspace_check_gamma(png_ptr, colorspace, gAMA, 1/*from gAMA*/))
+ if (png_colorspace_check_gamma(png_ptr, colorspace, gAMA,
+ 1/*from gAMA*/) != 0)
{
/* Store this gamma value. */
colorspace->gamma = gAMA;
void /* PRIVATE */
png_colorspace_sync_info(png_const_structrp png_ptr, png_inforp info_ptr)
{
- if (info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID)
+ if ((info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) != 0)
{
/* Everything is invalid */
info_ptr->valid &= ~(PNG_INFO_gAMA|PNG_INFO_cHRM|PNG_INFO_sRGB|
PNG_INFO_iCCP);
# ifdef PNG_COLORSPACE_SUPPORTED
- /* Clean up the iCCP profile now if it won't be used. */
- png_free_data(png_ptr, info_ptr, PNG_FREE_ICCP, -1/*not used*/);
+ /* Clean up the iCCP profile now if it won't be used. */
+ png_free_data(png_ptr, info_ptr, PNG_FREE_ICCP, -1/*not used*/);
# else
- PNG_UNUSED(png_ptr)
+ PNG_UNUSED(png_ptr)
# endif
}
else
{
# ifdef PNG_COLORSPACE_SUPPORTED
- /* Leave the INFO_iCCP flag set if the pngset.c code has already set
- * it; this allows a PNG to contain a profile which matches sRGB and
- * yet still have that profile retrievable by the application.
- */
- if (info_ptr->colorspace.flags & PNG_COLORSPACE_MATCHES_sRGB)
- info_ptr->valid |= PNG_INFO_sRGB;
+ /* Leave the INFO_iCCP flag set if the pngset.c code has already set
+ * it; this allows a PNG to contain a profile which matches sRGB and
+ * yet still have that profile retrievable by the application.
+ */
+ if ((info_ptr->colorspace.flags & PNG_COLORSPACE_MATCHES_sRGB) != 0)
+ info_ptr->valid |= PNG_INFO_sRGB;
- else
- info_ptr->valid &= ~PNG_INFO_sRGB;
+ else
+ info_ptr->valid &= ~PNG_INFO_sRGB;
- if (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS)
- info_ptr->valid |= PNG_INFO_cHRM;
+ if ((info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
+ info_ptr->valid |= PNG_INFO_cHRM;
- else
- info_ptr->valid &= ~PNG_INFO_cHRM;
+ else
+ info_ptr->valid &= ~PNG_INFO_cHRM;
# endif
- if (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA)
+ if ((info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) != 0)
info_ptr->valid |= PNG_INFO_gAMA;
else
png_colorspace_sync_info(png_ptr, info_ptr);
}
#endif
-#endif
+#endif /* GAMMA */
#ifdef PNG_COLORSPACE_SUPPORTED
/* Added at libpng-1.5.5 to support read and write of true CIEXYZ values for
png_int_32 d, dwhite, whiteX, whiteY;
d = XYZ->red_X + XYZ->red_Y + XYZ->red_Z;
- if (!png_muldiv(&xy->redx, XYZ->red_X, PNG_FP_1, d)) return 1;
- if (!png_muldiv(&xy->redy, XYZ->red_Y, PNG_FP_1, d)) return 1;
+ if (png_muldiv(&xy->redx, XYZ->red_X, PNG_FP_1, d) == 0)
+ return 1;
+ if (png_muldiv(&xy->redy, XYZ->red_Y, PNG_FP_1, d) == 0)
+ return 1;
dwhite = d;
whiteX = XYZ->red_X;
whiteY = XYZ->red_Y;
d = XYZ->green_X + XYZ->green_Y + XYZ->green_Z;
- if (!png_muldiv(&xy->greenx, XYZ->green_X, PNG_FP_1, d)) return 1;
- if (!png_muldiv(&xy->greeny, XYZ->green_Y, PNG_FP_1, d)) return 1;
+ if (png_muldiv(&xy->greenx, XYZ->green_X, PNG_FP_1, d) == 0)
+ return 1;
+ if (png_muldiv(&xy->greeny, XYZ->green_Y, PNG_FP_1, d) == 0)
+ return 1;
dwhite += d;
whiteX += XYZ->green_X;
whiteY += XYZ->green_Y;
d = XYZ->blue_X + XYZ->blue_Y + XYZ->blue_Z;
- if (!png_muldiv(&xy->bluex, XYZ->blue_X, PNG_FP_1, d)) return 1;
- if (!png_muldiv(&xy->bluey, XYZ->blue_Y, PNG_FP_1, d)) return 1;
+ if (png_muldiv(&xy->bluex, XYZ->blue_X, PNG_FP_1, d) == 0)
+ return 1;
+ if (png_muldiv(&xy->bluey, XYZ->blue_Y, PNG_FP_1, d) == 0)
+ return 1;
dwhite += d;
whiteX += XYZ->blue_X;
whiteY += XYZ->blue_Y;
/* The reference white is simply the sum of the end-point (X,Y,Z) vectors,
* thus:
*/
- if (!png_muldiv(&xy->whitex, whiteX, PNG_FP_1, dwhite)) return 1;
- if (!png_muldiv(&xy->whitey, whiteY, PNG_FP_1, dwhite)) return 1;
+ if (png_muldiv(&xy->whitex, whiteX, PNG_FP_1, dwhite) == 0)
+ return 1;
+ if (png_muldiv(&xy->whitey, whiteY, PNG_FP_1, dwhite) == 0)
+ return 1;
return 0;
}
/* Check xy and, implicitly, z. Note that wide gamut color spaces typically
* have end points with 0 tristimulus values (these are impossible end
- * points, but they are used to cover the possible colors.)
+ * points, but they are used to cover the possible colors). We check
+ * xy->whitey against 5, not 0, to avoid a possible integer overflow.
*/
- if (xy->redx < 0 || xy->redx > PNG_FP_1) return 1;
- if (xy->redy < 0 || xy->redy > PNG_FP_1-xy->redx) return 1;
+ if (xy->redx < 0 || xy->redx > PNG_FP_1) return 1;
+ if (xy->redy < 0 || xy->redy > PNG_FP_1-xy->redx) return 1;
if (xy->greenx < 0 || xy->greenx > PNG_FP_1) return 1;
if (xy->greeny < 0 || xy->greeny > PNG_FP_1-xy->greenx) return 1;
- if (xy->bluex < 0 || xy->bluex > PNG_FP_1) return 1;
- if (xy->bluey < 0 || xy->bluey > PNG_FP_1-xy->bluex) return 1;
+ if (xy->bluex < 0 || xy->bluex > PNG_FP_1) return 1;
+ if (xy->bluey < 0 || xy->bluey > PNG_FP_1-xy->bluex) return 1;
if (xy->whitex < 0 || xy->whitex > PNG_FP_1) return 1;
- if (xy->whitey < 0 || xy->whitey > PNG_FP_1-xy->whitex) return 1;
+ if (xy->whitey < 5 || xy->whitey > PNG_FP_1-xy->whitex) return 1;
/* The reverse calculation is more difficult because the original tristimulus
* value had 9 independent values (red,green,blue)x(X,Y,Z) however only 8
* (1/white-y), so we can immediately see that as white-y approaches 0 the
* accuracy inherent in the cHRM chunk drops off substantially.
*
- * libpng arithmetic: a simple invertion of the above equations
+ * libpng arithmetic: a simple inversion of the above equations
* ------------------------------------------------------------
*
* white_scale = 1/white-y
/* By the argument, above overflow should be impossible here. The return
* value of 2 indicates an internal error to the caller.
*/
- if (!png_muldiv(&left, xy->greenx-xy->bluex, xy->redy - xy->bluey, 7))
+ if (png_muldiv(&left, xy->greenx-xy->bluex, xy->redy - xy->bluey, 7) == 0)
return 2;
- if (!png_muldiv(&right, xy->greeny-xy->bluey, xy->redx - xy->bluex, 7))
+ if (png_muldiv(&right, xy->greeny-xy->bluey, xy->redx - xy->bluex, 7) == 0)
return 2;
denominator = left - right;
/* Now find the red numerator. */
- if (!png_muldiv(&left, xy->greenx-xy->bluex, xy->whitey-xy->bluey, 7))
+ if (png_muldiv(&left, xy->greenx-xy->bluex, xy->whitey-xy->bluey, 7) == 0)
return 2;
- if (!png_muldiv(&right, xy->greeny-xy->bluey, xy->whitex-xy->bluex, 7))
+ if (png_muldiv(&right, xy->greeny-xy->bluey, xy->whitex-xy->bluex, 7) == 0)
return 2;
/* Overflow is possible here and it indicates an extreme set of PNG cHRM
* scale value because this allows us to delay the multiplication of white-y
* into the denominator, which tends to produce a small number.
*/
- if (!png_muldiv(&red_inverse, xy->whitey, denominator, left-right) ||
+ if (png_muldiv(&red_inverse, xy->whitey, denominator, left-right) == 0 ||
red_inverse <= xy->whitey /* r+g+b scales = white scale */)
return 1;
/* Similarly for green_inverse: */
- if (!png_muldiv(&left, xy->redy-xy->bluey, xy->whitex-xy->bluex, 7))
+ if (png_muldiv(&left, xy->redy-xy->bluey, xy->whitex-xy->bluex, 7) == 0)
return 2;
- if (!png_muldiv(&right, xy->redx-xy->bluex, xy->whitey-xy->bluey, 7))
+ if (png_muldiv(&right, xy->redx-xy->bluex, xy->whitey-xy->bluey, 7) == 0)
return 2;
- if (!png_muldiv(&green_inverse, xy->whitey, denominator, left-right) ||
+ if (png_muldiv(&green_inverse, xy->whitey, denominator, left-right) == 0 ||
green_inverse <= xy->whitey)
return 1;
* can still produce 0 for extreme cHRM values.
*/
blue_scale = png_reciprocal(xy->whitey) - png_reciprocal(red_inverse) -
- png_reciprocal(green_inverse);
- if (blue_scale <= 0) return 1;
+ png_reciprocal(green_inverse);
+ if (blue_scale <= 0)
+ return 1;
/* And fill in the png_XYZ: */
- if (!png_muldiv(&XYZ->red_X, xy->redx, PNG_FP_1, red_inverse)) return 1;
- if (!png_muldiv(&XYZ->red_Y, xy->redy, PNG_FP_1, red_inverse)) return 1;
- if (!png_muldiv(&XYZ->red_Z, PNG_FP_1 - xy->redx - xy->redy, PNG_FP_1,
- red_inverse))
+ if (png_muldiv(&XYZ->red_X, xy->redx, PNG_FP_1, red_inverse) == 0)
+ return 1;
+ if (png_muldiv(&XYZ->red_Y, xy->redy, PNG_FP_1, red_inverse) == 0)
+ return 1;
+ if (png_muldiv(&XYZ->red_Z, PNG_FP_1 - xy->redx - xy->redy, PNG_FP_1,
+ red_inverse) == 0)
return 1;
- if (!png_muldiv(&XYZ->green_X, xy->greenx, PNG_FP_1, green_inverse))
+ if (png_muldiv(&XYZ->green_X, xy->greenx, PNG_FP_1, green_inverse) == 0)
return 1;
- if (!png_muldiv(&XYZ->green_Y, xy->greeny, PNG_FP_1, green_inverse))
+ if (png_muldiv(&XYZ->green_Y, xy->greeny, PNG_FP_1, green_inverse) == 0)
return 1;
- if (!png_muldiv(&XYZ->green_Z, PNG_FP_1 - xy->greenx - xy->greeny, PNG_FP_1,
- green_inverse))
+ if (png_muldiv(&XYZ->green_Z, PNG_FP_1 - xy->greenx - xy->greeny, PNG_FP_1,
+ green_inverse) == 0)
return 1;
- if (!png_muldiv(&XYZ->blue_X, xy->bluex, blue_scale, PNG_FP_1)) return 1;
- if (!png_muldiv(&XYZ->blue_Y, xy->bluey, blue_scale, PNG_FP_1)) return 1;
- if (!png_muldiv(&XYZ->blue_Z, PNG_FP_1 - xy->bluex - xy->bluey, blue_scale,
- PNG_FP_1))
+ if (png_muldiv(&XYZ->blue_X, xy->bluex, blue_scale, PNG_FP_1) == 0)
+ return 1;
+ if (png_muldiv(&XYZ->blue_Y, xy->bluey, blue_scale, PNG_FP_1) == 0)
+ return 1;
+ if (png_muldiv(&XYZ->blue_Z, PNG_FP_1 - xy->bluex - xy->bluey, blue_scale,
+ PNG_FP_1) == 0)
return 1;
return 0; /*success*/
* safe.
*/
Y = XYZ->red_Y;
- if (0x7fffffff - Y < XYZ->green_X) return 1;
+ if (0x7fffffff - Y < XYZ->green_X)
+ return 1;
Y += XYZ->green_Y;
- if (0x7fffffff - Y < XYZ->blue_X) return 1;
+ if (0x7fffffff - Y < XYZ->blue_X)
+ return 1;
Y += XYZ->blue_Y;
if (Y != PNG_FP_1)
{
- if (!png_muldiv(&XYZ->red_X, XYZ->red_X, PNG_FP_1, Y)) return 1;
- if (!png_muldiv(&XYZ->red_Y, XYZ->red_Y, PNG_FP_1, Y)) return 1;
- if (!png_muldiv(&XYZ->red_Z, XYZ->red_Z, PNG_FP_1, Y)) return 1;
+ if (png_muldiv(&XYZ->red_X, XYZ->red_X, PNG_FP_1, Y) == 0)
+ return 1;
+ if (png_muldiv(&XYZ->red_Y, XYZ->red_Y, PNG_FP_1, Y) == 0)
+ return 1;
+ if (png_muldiv(&XYZ->red_Z, XYZ->red_Z, PNG_FP_1, Y) == 0)
+ return 1;
- if (!png_muldiv(&XYZ->green_X, XYZ->green_X, PNG_FP_1, Y)) return 1;
- if (!png_muldiv(&XYZ->green_Y, XYZ->green_Y, PNG_FP_1, Y)) return 1;
- if (!png_muldiv(&XYZ->green_Z, XYZ->green_Z, PNG_FP_1, Y)) return 1;
+ if (png_muldiv(&XYZ->green_X, XYZ->green_X, PNG_FP_1, Y) == 0)
+ return 1;
+ if (png_muldiv(&XYZ->green_Y, XYZ->green_Y, PNG_FP_1, Y) == 0)
+ return 1;
+ if (png_muldiv(&XYZ->green_Z, XYZ->green_Z, PNG_FP_1, Y) == 0)
+ return 1;
- if (!png_muldiv(&XYZ->blue_X, XYZ->blue_X, PNG_FP_1, Y)) return 1;
- if (!png_muldiv(&XYZ->blue_Y, XYZ->blue_Y, PNG_FP_1, Y)) return 1;
- if (!png_muldiv(&XYZ->blue_Z, XYZ->blue_Z, PNG_FP_1, Y)) return 1;
+ if (png_muldiv(&XYZ->blue_X, XYZ->blue_X, PNG_FP_1, Y) == 0)
+ return 1;
+ if (png_muldiv(&XYZ->blue_Y, XYZ->blue_Y, PNG_FP_1, Y) == 0)
+ return 1;
+ if (png_muldiv(&XYZ->blue_Z, XYZ->blue_Z, PNG_FP_1, Y) == 0)
+ return 1;
}
return 0;
png_colorspace_endpoints_match(const png_xy *xy1, const png_xy *xy2, int delta)
{
/* Allow an error of +/-0.01 (absolute value) on each chromaticity */
- return !(PNG_OUT_OF_RANGE(xy1->whitex, xy2->whitex,delta) ||
- PNG_OUT_OF_RANGE(xy1->whitey, xy2->whitey,delta) ||
- PNG_OUT_OF_RANGE(xy1->redx, xy2->redx, delta) ||
- PNG_OUT_OF_RANGE(xy1->redy, xy2->redy, delta) ||
- PNG_OUT_OF_RANGE(xy1->greenx, xy2->greenx,delta) ||
- PNG_OUT_OF_RANGE(xy1->greeny, xy2->greeny,delta) ||
- PNG_OUT_OF_RANGE(xy1->bluex, xy2->bluex, delta) ||
- PNG_OUT_OF_RANGE(xy1->bluey, xy2->bluey, delta));
+ if (PNG_OUT_OF_RANGE(xy1->whitex, xy2->whitex,delta) ||
+ PNG_OUT_OF_RANGE(xy1->whitey, xy2->whitey,delta) ||
+ PNG_OUT_OF_RANGE(xy1->redx, xy2->redx, delta) ||
+ PNG_OUT_OF_RANGE(xy1->redy, xy2->redy, delta) ||
+ PNG_OUT_OF_RANGE(xy1->greenx, xy2->greenx,delta) ||
+ PNG_OUT_OF_RANGE(xy1->greeny, xy2->greeny,delta) ||
+ PNG_OUT_OF_RANGE(xy1->bluex, xy2->bluex, delta) ||
+ PNG_OUT_OF_RANGE(xy1->bluey, xy2->bluey, delta))
+ return 0;
+ return 1;
}
/* Added in libpng-1.6.0, a different check for the validity of a set of cHRM
/* As a side-effect this routine also returns the XYZ endpoints. */
result = png_XYZ_from_xy(XYZ, xy);
- if (result != 0) return result;
+ if (result != 0)
+ return result;
result = png_xy_from_XYZ(&xy_test, XYZ);
- if (result != 0) return result;
+ if (result != 0)
+ return result;
if (png_colorspace_endpoints_match(xy, &xy_test,
- 5/*actually, the math is pretty accurate*/))
+ 5/*actually, the math is pretty accurate*/) != 0)
return 0;
/* Too much slip */
png_XYZ XYZtemp;
result = png_XYZ_normalize(XYZ);
- if (result != 0) return result;
+ if (result != 0)
+ return result;
result = png_xy_from_XYZ(xy, XYZ);
- if (result != 0) return result;
+ if (result != 0)
+ return result;
XYZtemp = *XYZ;
return png_colorspace_check_xy(&XYZtemp, xy);
png_colorspacerp colorspace, const png_xy *xy, const png_XYZ *XYZ,
int preferred)
{
- if (colorspace->flags & PNG_COLORSPACE_INVALID)
+ if ((colorspace->flags & PNG_COLORSPACE_INVALID) != 0)
return 0;
/* The consistency check is performed on the chromaticities; this factors out
* variations because of the normalization (or not) of the end point Y
* values.
*/
- if (preferred < 2 && (colorspace->flags & PNG_COLORSPACE_HAVE_ENDPOINTS))
+ if (preferred < 2 &&
+ (colorspace->flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{
/* The end points must be reasonably close to any we already have. The
* following allows an error of up to +/-.001
*/
- if (!png_colorspace_endpoints_match(xy, &colorspace->end_points_xy, 100))
+ if (png_colorspace_endpoints_match(xy, &colorspace->end_points_xy,
+ 100) == 0)
{
colorspace->flags |= PNG_COLORSPACE_INVALID;
png_benign_error(png_ptr, "inconsistent chromaticities");
/* The end points are normally quoted to two decimal digits, so allow +/-0.01
* on this test.
*/
- if (png_colorspace_endpoints_match(xy, &sRGB_xy, 1000))
+ if (png_colorspace_endpoints_match(xy, &sRGB_xy, 1000) != 0)
colorspace->flags |= PNG_COLORSPACE_ENDPOINTS_MATCH_sRGB;
else
*/
colorspace->flags |= PNG_COLORSPACE_INVALID;
png_error(png_ptr, "internal error checking chromaticities");
- break;
}
return 0; /* failed */
default:
colorspace->flags |= PNG_COLORSPACE_INVALID;
png_error(png_ptr, "internal error checking chromaticities");
- break;
}
return 0; /* failed */
pos = png_safecat(message, (sizeof message), 0, "profile '"); /* 9 chars */
pos = png_safecat(message, pos+79, pos, name); /* Truncate to 79 chars */
pos = png_safecat(message, (sizeof message), pos, "': "); /* +2 = 90 */
- if (is_ICC_signature(value))
+ if (is_ICC_signature(value) != 0)
{
/* So 'value' is at most 4 bytes and the following cast is safe */
png_icc_tag_name(message+pos, (png_uint_32)value);
PNG_UNUSED(pos)
/* This is recoverable, but make it unconditionally an app_error on write to
- * avoid writing invalid ICC profiles into PNG files. (I.e. we handle them
+ * avoid writing invalid ICC profiles into PNG files (i.e., we handle them
* on read, with a warning, but on write unless the app turns off
* application errors the PNG won't be written.)
*/
/* sRGB sets known gamma, end points and (from the chunk) intent. */
/* IMPORTANT: these are not necessarily the values found in an ICC profile
* because ICC profiles store values adapted to a D50 environment; it is
- * expected that the ICC profile mediaWhitePointTag will be D50, see the
+ * expected that the ICC profile mediaWhitePointTag will be D50; see the
* checks and code elsewhere to understand this better.
*
* These XYZ values, which are accurate to 5dp, produce rgb to gray
};
/* Do nothing if the colorspace is already invalidated. */
- if (colorspace->flags & PNG_COLORSPACE_INVALID)
+ if ((colorspace->flags & PNG_COLORSPACE_INVALID) != 0)
return 0;
/* Check the intent, then check for existing settings. It is valid for the
switch (temp)
{
case 0x52474220: /* 'RGB ' */
- if (!(color_type & PNG_COLOR_MASK_COLOR))
+ if ((color_type & PNG_COLOR_MASK_COLOR) == 0)
return png_icc_profile_error(png_ptr, colorspace, name, temp,
"RGB color space not permitted on grayscale PNG");
break;
case 0x47524159: /* 'GRAY' */
- if (color_type & PNG_COLOR_MASK_COLOR)
+ if ((color_type & PNG_COLOR_MASK_COLOR) != 0)
return png_icc_profile_error(png_ptr, colorspace, name, temp,
"Gray color space not permitted on RGB PNG");
break;
temp = png_get_uint_32(profile+12); /* profile/device class */
switch (temp)
{
- case 0x73636E72: /* 'scnr' */
- case 0x6D6E7472: /* 'mntr' */
+ case 0x73636e72: /* 'scnr' */
+ case 0x6d6e7472: /* 'mntr' */
case 0x70727472: /* 'prtr' */
case 0x73706163: /* 'spac' */
/* All supported */
return png_icc_profile_error(png_ptr, colorspace, name, temp,
"invalid embedded Abstract ICC profile");
- case 0x6C696E6B: /* 'link' */
+ case 0x6c696e6b: /* 'link' */
/* DeviceLink profiles cannot be interpreted in a non-device specific
* fashion, if an app uses the AToB0Tag in the profile the results are
* undefined unless the result is sent to the intended device,
return png_icc_profile_error(png_ptr, colorspace, name, temp,
"unexpected DeviceLink ICC profile class");
- case 0x6E6D636C: /* 'nmcl' */
+ case 0x6e6d636c: /* 'nmcl' */
/* A NamedColor profile is also device specific, however it doesn't
* contain an AToB0 tag that is open to misinterpretation. Almost
* certainly it will fail the tests below.
temp = png_get_uint_32(profile+20);
switch (temp)
{
- case 0x58595A20: /* 'XYZ ' */
- case 0x4C616220: /* 'Lab ' */
+ case 0x58595a20: /* 'XYZ ' */
+ case 0x4c616220: /* 'Lab ' */
break;
default:
return 1; /* success, maybe with warnings */
}
-#if defined(PNG_sRGB_SUPPORTED) && PNG_sRGB_PROFILE_CHECKS >= 0
+#ifdef PNG_sRGB_SUPPORTED
+#if PNG_sRGB_PROFILE_CHECKS >= 0
/* Information about the known ICC sRGB profiles */
static const struct
{
#endif
unsigned int i;
+#ifdef PNG_SET_OPTION_SUPPORTED
/* First see if PNG_SKIP_sRGB_CHECK_PROFILE has been set to "on" */
if (((png_ptr->options >> PNG_SKIP_sRGB_CHECK_PROFILE) & 3) ==
PNG_OPTION_ON)
return 0;
+#endif
for (i=0; i < (sizeof png_sRGB_checks) / (sizeof png_sRGB_checks[0]); ++i)
{
* are not used by default if there is an MD5!)
*/
# if PNG_sRGB_PROFILE_CHECKS == 0
- if (png_sRGB_checks[i].have_md5)
+ if (png_sRGB_checks[i].have_md5 != 0)
return 1+png_sRGB_checks[i].is_broken;
# endif
}
/* Length *and* intent must match */
- if (length == png_sRGB_checks[i].length &&
- intent == png_sRGB_checks[i].intent)
+ if (length == (png_uint_32) png_sRGB_checks[i].length &&
+ intent == (png_uint_32) png_sRGB_checks[i].intent)
{
/* Now calculate the adler32 if not done already. */
if (adler == 0)
if (crc == png_sRGB_checks[i].crc)
# endif
{
- if (png_sRGB_checks[i].is_broken)
+ if (png_sRGB_checks[i].is_broken != 0)
{
/* These profiles are known to have bad data that may cause
* problems if they are used, therefore attempt to
* the profile is perfectly valid, but it would be nice if
* people used the up-to-date ones.
*/
- else if (!png_sRGB_checks[i].have_md5)
+ else if (png_sRGB_checks[i].have_md5 == 0)
{
- png_chunk_report(png_ptr, "out-of-date sRGB profile with"
- " no signature",
+ png_chunk_report(png_ptr,
+ "out-of-date sRGB profile with no signature",
PNG_CHUNK_WARNING);
}
* way. This probably indicates a data error or uninformed hacking.
* Fall through to "no match".
*/
- png_chunk_report(png_ptr, "Not recognizing known sRGB profile that"
- " has been edited",
+ png_chunk_report(png_ptr,
+ "Not recognizing known sRGB profile that has been edited",
PNG_CHUNK_WARNING);
break;
# endif
return 0; /* no match */
}
-#endif
+#endif /* PNG_sRGB_PROFILE_CHECKS >= 0 */
-#ifdef PNG_sRGB_SUPPORTED
void /* PRIVATE */
png_icc_set_sRGB(png_const_structrp png_ptr,
png_colorspacerp colorspace, png_const_bytep profile, uLong adler)
* the sRGB information.
*/
#if PNG_sRGB_PROFILE_CHECKS >= 0
- if (png_compare_ICC_profile_with_sRGB(png_ptr, profile, adler))
+ if (png_compare_ICC_profile_with_sRGB(png_ptr, profile, adler) != 0)
#endif
(void)png_colorspace_set_sRGB(png_ptr, colorspace,
(int)/*already checked*/png_get_uint_32(profile+64));
}
-#endif /* PNG_READ_sRGB_SUPPORTED */
+#endif /* sRGB */
int /* PRIVATE */
png_colorspace_set_ICC(png_const_structrp png_ptr, png_colorspacerp colorspace,
png_const_charp name, png_uint_32 profile_length, png_const_bytep profile,
int color_type)
{
- if (colorspace->flags & PNG_COLORSPACE_INVALID)
+ if ((colorspace->flags & PNG_COLORSPACE_INVALID) != 0)
return 0;
- if (png_icc_check_length(png_ptr, colorspace, name, profile_length) &&
- png_icc_check_header(png_ptr, colorspace, name, profile_length, profile,
- color_type) &&
- png_icc_check_tag_table(png_ptr, colorspace, name, profile_length,
- profile))
+ if (png_icc_check_length(png_ptr, colorspace, name, profile_length) != 0 &&
+ png_icc_check_header(png_ptr, colorspace, name, profile_length, profile,
+ color_type) != 0 &&
+ png_icc_check_tag_table(png_ptr, colorspace, name, profile_length,
+ profile) != 0)
{
# ifdef PNG_sRGB_SUPPORTED
/* If no sRGB support, don't try storing sRGB information */
png_colorspace_set_rgb_coefficients(png_structrp png_ptr)
{
/* Set the rgb_to_gray coefficients from the colorspace. */
- if (!png_ptr->rgb_to_gray_coefficients_set &&
+ if (png_ptr->rgb_to_gray_coefficients_set == 0 &&
(png_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{
/* png_set_background has not been called, get the coefficients from the Y
png_error(png_ptr, "internal error handling cHRM->XYZ");
}
}
-#endif
+#endif /* READ_RGB_TO_GRAY */
#endif /* COLORSPACE */
+#ifdef __GNUC__
+/* This exists solely to work round a warning from GNU C. */
+static int /* PRIVATE */
+png_gt(size_t a, size_t b)
+{
+ return a > b;
+}
+#else
+# define png_gt(a,b) ((a) > (b))
+#endif
+
void /* PRIVATE */
png_check_IHDR(png_const_structrp png_ptr,
png_uint_32 width, png_uint_32 height, int bit_depth,
png_warning(png_ptr, "Image width is zero in IHDR");
error = 1;
}
- else if (width > PNG_UINT_31_MAX)
+
+ if (width > PNG_UINT_31_MAX)
{
png_warning(png_ptr, "Invalid image width in IHDR");
error = 1;
}
- else
+
+ if (png_gt(((width + 7) & (~7)),
+ ((PNG_SIZE_MAX
+ - 48 /* big_row_buf hack */
+ - 1) /* filter byte */
+ / 8) /* 8-byte RGBA pixels */
+ - 1)) /* extra max_pixel_depth pad */
{
-# ifdef PNG_SET_USER_LIMITS_SUPPORTED
- if (width > png_ptr->user_width_max)
-# else
- if (width > PNG_USER_WIDTH_MAX)
-# endif
- {
- png_warning(png_ptr, "Image width exceeds user limit in IHDR");
- error = 1;
- }
+ /* The size of the row must be within the limits of this architecture.
+ * Because the read code can perform arbitrary transformations the
+ * maximum size is checked here. Because the code in png_read_start_row
+ * adds extra space "for safety's sake" in several places a conservative
+ * limit is used here.
+ *
+ * NOTE: it would be far better to check the size that is actually used,
+ * but the effect in the real world is minor and the changes are more
+ * extensive, therefore much more dangerous and much more difficult to
+ * write in a way that avoids compiler warnings.
+ */
+ png_warning(png_ptr, "Image width is too large for this architecture");
+ error = 1;
+ }
+
+#ifdef PNG_SET_USER_LIMITS_SUPPORTED
+ if (width > png_ptr->user_width_max)
+#else
+ if (width > PNG_USER_WIDTH_MAX)
+#endif
+ {
+ png_warning(png_ptr, "Image width exceeds user limit in IHDR");
+ error = 1;
}
if (height == 0)
png_warning(png_ptr, "Image height is zero in IHDR");
error = 1;
}
- else if (height > PNG_UINT_31_MAX)
+
+ if (height > PNG_UINT_31_MAX)
{
png_warning(png_ptr, "Invalid image height in IHDR");
error = 1;
}
- else
+
+#ifdef PNG_SET_USER_LIMITS_SUPPORTED
+ if (height > png_ptr->user_height_max)
+#else
+ if (height > PNG_USER_HEIGHT_MAX)
+#endif
{
-# ifdef PNG_SET_USER_LIMITS_SUPPORTED
- if (height > png_ptr->user_height_max)
-# else
- if (height > PNG_USER_HEIGHT_MAX)
-# endif
- {
- png_warning(png_ptr, "Image height exceeds user limit in IHDR");
- error = 1;
- }
+ png_warning(png_ptr, "Image height exceeds user limit in IHDR");
+ error = 1;
}
/* Check other values */
error = 1;
}
-# ifdef PNG_MNG_FEATURES_SUPPORTED
+#ifdef PNG_MNG_FEATURES_SUPPORTED
/* Accept filter_method 64 (intrapixel differencing) only if
* 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and
* 2. Libpng did not read a PNG signature (this filter_method is only
* 4. The filter_method is 64 and
* 5. The color_type is RGB or RGBA
*/
- if ((png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) &&
- png_ptr->mng_features_permitted)
+ if ((png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) != 0 &&
+ png_ptr->mng_features_permitted != 0)
png_warning(png_ptr, "MNG features are not allowed in a PNG datastream");
if (filter_type != PNG_FILTER_TYPE_BASE)
{
- if (!((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) &&
+ if (!((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) != 0 &&
(filter_type == PNG_INTRAPIXEL_DIFFERENCING) &&
((png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) == 0) &&
(color_type == PNG_COLOR_TYPE_RGB ||
error = 1;
}
- if (png_ptr->mode & PNG_HAVE_PNG_SIGNATURE)
+ if ((png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) != 0)
{
png_warning(png_ptr, "Invalid filter method in IHDR");
error = 1;
}
}
-# else
+#else
if (filter_type != PNG_FILTER_TYPE_BASE)
{
png_warning(png_ptr, "Unknown filter method in IHDR");
error = 1;
}
-# endif
+#endif
if (error == 1)
png_error(png_ptr, "Invalid IHDR data");
switch ((state & PNG_FP_STATE) + (type & PNG_FP_SAW_ANY))
{
case PNG_FP_INTEGER + PNG_FP_SAW_SIGN:
- if (state & PNG_FP_SAW_ANY)
+ if ((state & PNG_FP_SAW_ANY) != 0)
goto PNG_FP_End; /* not a part of the number */
png_fp_add(state, type);
case PNG_FP_INTEGER + PNG_FP_SAW_DOT:
/* Ok as trailer, ok as lead of fraction. */
- if (state & PNG_FP_SAW_DOT) /* two dots */
+ if ((state & PNG_FP_SAW_DOT) != 0) /* two dots */
goto PNG_FP_End;
- else if (state & PNG_FP_SAW_DIGIT) /* trailing dot? */
+ else if ((state & PNG_FP_SAW_DIGIT) != 0) /* trailing dot? */
png_fp_add(state, type);
else
break;
case PNG_FP_INTEGER + PNG_FP_SAW_DIGIT:
- if (state & PNG_FP_SAW_DOT) /* delayed fraction */
+ if ((state & PNG_FP_SAW_DOT) != 0) /* delayed fraction */
png_fp_set(state, PNG_FP_FRACTION | PNG_FP_SAW_DOT);
png_fp_add(state, type | PNG_FP_WAS_VALID);
break;
case PNG_FP_EXPONENT + PNG_FP_SAW_SIGN:
- if (state & PNG_FP_SAW_ANY)
+ if ((state & PNG_FP_SAW_ANY) != 0)
goto PNG_FP_End; /* not a part of the number */
png_fp_add(state, PNG_FP_SAW_SIGN);
int state=0;
png_size_t char_index=0;
- if (png_check_fp_number(string, size, &state, &char_index) &&
+ if (png_check_fp_number(string, size, &state, &char_index) != 0 &&
(char_index == size || string[char_index] == 0))
return state /* must be non-zero - see above */;
return 0; /* i.e. fail */
}
-#endif /* pCAL or sCAL */
+#endif /* pCAL || sCAL */
#ifdef PNG_sCAL_SUPPORTED
# ifdef PNG_FLOATING_POINT_SUPPORTED
if (fp >= DBL_MIN && fp <= DBL_MAX)
{
- int exp_b10; /* A base 10 exponent */
+ int exp_b10; /* A base 10 exponent */
double base; /* 10^exp_b10 */
/* First extract a base 10 exponent of the number,
*/
{
- int czero, clead, cdigits;
+ unsigned int czero, clead, cdigits;
char exponent[10];
/* Allow up to two leading zeros - this will not lengthen
* of the loop don't break the number into parts so
* that the final digit is rounded.
*/
- if (cdigits+czero-clead+1 < (int)precision)
+ if (cdigits+czero+1 < precision+clead)
fp = modf(fp, &d);
else
if (exp_b10 != (-1))
{
- if (exp_b10 == 0) *ascii++ = 46, --size; /* counted
- above */
+ if (exp_b10 == 0)
+ *ascii++ = 46, --size; /* counted above */
+
--exp_b10;
}
*ascii++ = (char)(48 + (int)d), ++cdigits;
}
}
- while (cdigits+czero-clead < (int)precision && fp > DBL_MIN);
+ while (cdigits+czero < precision+clead && fp > DBL_MIN);
/* The total output count (max) is now 4+precision */
/* Check for an exponent, if we don't need one we are
* done and just need to terminate the string. At
* this point exp_b10==(-1) is effectively if flag - it got
- * to '-1' because of the decrement after outputing
+ * to '-1' because of the decrement after outputting
* the decimal point above (the exponent required is
* *not* -1!)
*/
{
/* The following only happens if we didn't output the
* leading zeros above for negative exponent, so this
- * doest add to the digit requirement. Note that the
+ * doesn't add to the digit requirement. Note that the
* two zeros here can only be output if the two leading
* zeros were *not* output, so this doesn't increase
* the output count.
/* Need another size check here for the exponent digits, so
* this need not be considered above.
*/
- if ((int)size > cdigits)
+ if (size > cdigits)
{
while (cdigits > 0) *ascii++ = exponent[--cdigits];
/* Avoid overflow here on the minimum integer. */
if (fp < 0)
- *ascii++ = 45, --size, num = -fp;
+ *ascii++ = 45, num = -fp;
else
num = fp;
png_error(png_ptr, "ASCII conversion buffer too small");
}
# endif /* FIXED_POINT */
-#endif /* READ_SCAL */
+#endif /* SCAL */
#if defined(PNG_FLOATING_POINT_SUPPORTED) && \
!defined(PNG_FIXED_POINT_MACRO_SUPPORTED) && \
png_fixed_error(png_ptr, text);
# ifndef PNG_ERROR_TEXT_SUPPORTED
- PNG_UNUSED(text)
+ PNG_UNUSED(text)
# endif
return (png_fixed_point)r;
result = -result;
/* Check for overflow. */
- if ((negative && result <= 0) || (!negative && result >= 0))
+ if ((negative != 0 && result <= 0) ||
+ (negative == 0 && result >= 0))
{
*res = result;
return 1;
{
png_fixed_point result;
- if (png_muldiv(&result, a, times, divisor))
+ if (png_muldiv(&result, a, times, divisor) != 0)
return result;
png_warning(png_ptr, "fixed point overflow ignored");
#else
png_fixed_point res;
- if (png_muldiv(&res, 100000, 100000, a))
+ if (png_muldiv(&res, 100000, 100000, a) != 0)
return res;
#endif
#endif
#ifdef PNG_READ_GAMMA_SUPPORTED
-# ifdef PNG_16BIT_SUPPORTED
+#ifdef PNG_16BIT_SUPPORTED
/* A local convenience routine. */
static png_fixed_point
png_product2(png_fixed_point a, png_fixed_point b)
{
/* The required result is 1/a * 1/b; the following preserves accuracy. */
-# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
+#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
double r = a * 1E-5;
r *= b;
r = floor(r+.5);
if (r <= 2147483647. && r >= -2147483648.)
return (png_fixed_point)r;
-# else
+#else
png_fixed_point res;
- if (png_muldiv(&res, a, b, 100000))
+ if (png_muldiv(&res, a, b, 100000) != 0)
return res;
-# endif
+#endif
return 0; /* overflow */
}
-# endif /* 16BIT */
+#endif /* 16BIT */
/* The inverse of the above. */
png_fixed_point
{
/* The required result is 1/a * 1/b; the following preserves accuracy. */
#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
- double r = 1E15/a;
- r /= b;
- r = floor(r+.5);
+ if (a != 0 && b != 0)
+ {
+ double r = 1E15/a;
+ r /= b;
+ r = floor(r+.5);
- if (r <= 2147483647. && r >= -2147483648.)
- return (png_fixed_point)r;
+ if (r <= 2147483647. && r >= -2147483648.)
+ return (png_fixed_point)r;
+ }
#else
/* This may overflow because the range of png_fixed_point isn't symmetric,
* but this API is only used for the product of file and screen gamma so it
* Zero (257): 0
* End (258): 23499
*/
+#ifdef PNG_16BIT_SUPPORTED
static png_int_32
png_log16bit(png_uint_32 x)
{
/* Safe, because the result can't have more than 20 bits: */
return (png_int_32)((lg2 + 2048) >> 12);
}
+#endif /* 16BIT */
/* The 'exp()' case must invert the above, taking a 20-bit fixed point
* logarithmic value and returning a 16 or 8-bit number as appropriate. In
* each case only the low 16 bits are relevant - the fraction - since the
* integer bits (the top 4) simply determine a shift.
*
- * The worst case is the 16-bit distinction between 65535 and 65534, this
- * requires perhaps spurious accuracty in the decoding of the logarithm to
+ * The worst case is the 16-bit distinction between 65535 and 65534. This
+ * requires perhaps spurious accuracy in the decoding of the logarithm to
* distinguish log2(65535/65534.5) - 10^-5 or 17 bits. There is little chance
* of getting this accuracy in practice.
*
if (x > 0 && x <= 0xfffff) /* Else overflow or zero (underflow) */
{
/* Obtain a 4-bit approximation */
- png_uint_32 e = png_32bit_exp[(x >> 12) & 0xf];
+ png_uint_32 e = png_32bit_exp[(x >> 12) & 0x0f];
/* Incorporate the low 12 bits - these decrease the returned value by
* multiplying by a number less than 1 if the bit is set. The multiplier
/* Get a 32-bit value: */
png_uint_32 x = png_exp(lg2);
- /* Convert the 32-bit value to 0..255 by multiplying by 256-1, note that the
+ /* Convert the 32-bit value to 0..255 by multiplying by 256-1. Note that the
* second, rounding, step can't overflow because of the first, subtraction,
* step.
*/
x -= x >> 8;
- return (png_byte)((x + 0x7fffffU) >> 24);
+ return (png_byte)(((x + 0x7fffffU) >> 24) & 0xff);
}
#ifdef PNG_16BIT_SUPPORTED
if (value > 0 && value < 255)
{
# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
- double r = floor(255*pow(value/255.,gamma_val*.00001)+.5);
+ /* 'value' is unsigned, ANSI-C90 requires the compiler to correctly
+ * convert this to a floating point value. This includes values that
+ * would overflow if 'value' were to be converted to 'int'.
+ *
+ * Apparently GCC, however, does an intermediate conversion to (int)
+ * on some (ARM) but not all (x86) platforms, possibly because of
+ * hardware FP limitations. (E.g. if the hardware conversion always
+ * assumes the integer register contains a signed value.) This results
+ * in ANSI-C undefined behavior for large values.
+ *
+ * Other implementations on the same machine might actually be ANSI-C90
+ * conformant and therefore compile spurious extra code for the large
+ * values.
+ *
+ * We can be reasonably sure that an unsigned to float conversion
+ * won't be faster than an int to float one. Therefore this code
+ * assumes responsibility for the undefined behavior, which it knows
+ * can't happen because of the check above.
+ *
+ * Note the argument to this routine is an (unsigned int) because, on
+ * 16-bit platforms, it is assigned a value which might be out of
+ * range for an (int); that would result in undefined behavior in the
+ * caller if the *argument* ('value') were to be declared (int).
+ */
+ double r = floor(255*pow((int)/*SAFE*/value/255.,gamma_val*.00001)+.5);
return (png_byte)r;
# else
png_int_32 lg2 = png_log8bit(value);
png_fixed_point res;
- if (png_muldiv(&res, gamma_val, lg2, PNG_FP_1))
+ if (png_muldiv(&res, gamma_val, lg2, PNG_FP_1) != 0)
return png_exp8bit(res);
/* Overflow. */
# endif
}
- return (png_byte)value;
+ return (png_byte)(value & 0xff);
}
#ifdef PNG_16BIT_SUPPORTED
if (value > 0 && value < 65535)
{
# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
- double r = floor(65535*pow(value/65535.,gamma_val*.00001)+.5);
+ /* The same (unsigned int)->(double) constraints apply here as above,
+ * however in this case the (unsigned int) to (int) conversion can
+ * overflow on an ANSI-C90 compliant system so the cast needs to ensure
+ * that this is not possible.
+ */
+ double r = floor(65535*pow((png_int_32)value/65535.,
+ gamma_val*.00001)+.5);
return (png_uint_16)r;
# else
png_int_32 lg2 = png_log16bit(value);
png_fixed_point res;
- if (png_muldiv(&res, gamma_val, lg2, PNG_FP_1))
+ if (png_muldiv(&res, gamma_val, lg2, PNG_FP_1) != 0)
return png_exp16bit(res);
/* Overflow. */
{
/* Various values derived from 'shift': */
PNG_CONST unsigned int num = 1U << (8U - shift);
+#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
+ /* CSE the division and work round wacky GCC warnings (see the comments
+ * in png_gamma_8bit_correct for where these come from.)
+ */
+ PNG_CONST double fmax = 1./(((png_int_32)1 << (16U - shift))-1);
+#endif
PNG_CONST unsigned int max = (1U << (16U - shift))-1U;
PNG_CONST unsigned int max_by_2 = 1U << (15U-shift);
unsigned int i;
/* The 'threshold' test is repeated here because it can arise for one of
* the 16-bit tables even if the others don't hit it.
*/
- if (png_gamma_significant(gamma_val))
+ if (png_gamma_significant(gamma_val) != 0)
{
/* The old code would overflow at the end and this would cause the
* 'pow' function to return a result >1, resulting in an
png_uint_32 ig = (j << (8-shift)) + i;
# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
/* Inline the 'max' scaling operation: */
- double d = floor(65535*pow(ig/(double)max, gamma_val*.00001)+.5);
+ /* See png_gamma_8bit_correct for why the cast to (int) is
+ * required here.
+ */
+ double d = floor(65535.*pow(ig*fmax, gamma_val*.00001)+.5);
sub_table[j] = (png_uint_16)d;
# else
if (shift != 0)
/* 'num' is the number of tables and also the number of low bits of low
* bits of the input 16-bit value used to select a table. Each table is
- * itself index by the high 8 bits of the value.
+ * itself indexed by the high 8 bits of the value.
*/
for (i = 0; i < num; i++)
table[i] = (png_uint_16p)png_malloc(png_ptr,
/* Build a single 8-bit table: same as the 16-bit case but much simpler (and
* typically much faster). Note that libpng currently does no sBIT processing
- * (apparently contrary to the spec) so a 256 entry table is always generated.
+ * (apparently contrary to the spec) so a 256-entry table is always generated.
*/
static void
png_build_8bit_table(png_structrp png_ptr, png_bytepp ptable,
unsigned int i;
png_bytep table = *ptable = (png_bytep)png_malloc(png_ptr, 256);
- if (png_gamma_significant(gamma_val)) for (i=0; i<256; i++)
- table[i] = png_gamma_8bit_correct(i, gamma_val);
+ if (png_gamma_significant(gamma_val) != 0)
+ for (i=0; i<256; i++)
+ table[i] = png_gamma_8bit_correct(i, gamma_val);
- else for (i=0; i<256; ++i)
- table[i] = (png_byte)i;
+ else
+ for (i=0; i<256; ++i)
+ table[i] = (png_byte)(i & 0xff);
}
/* Used from png_read_destroy and below to release the memory used by the gamma
#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \
defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \
defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)
- if (png_ptr->transformations & (PNG_COMPOSE | PNG_RGB_TO_GRAY))
+ if ((png_ptr->transformations & (PNG_COMPOSE | PNG_RGB_TO_GRAY)) != 0)
{
png_build_8bit_table(png_ptr, &png_ptr->gamma_to_1,
png_reciprocal(png_ptr->colorspace.gamma));
{
png_byte shift, sig_bit;
- if (png_ptr->color_type & PNG_COLOR_MASK_COLOR)
+ if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) != 0)
{
sig_bit = png_ptr->sig_bit.red;
* Where 'iv' is the input color value and 'ov' is the output value -
* pow(iv, gamma).
*
- * Thus the gamma table consists of up to 256 256 entry tables. The table
+ * Thus the gamma table consists of up to 256 256-entry tables. The table
* is selected by the (8-gamma_shift) most significant of the low 8 bits of
* the color value then indexed by the upper 8 bits:
*
*
*/
if (sig_bit > 0 && sig_bit < 16U)
- shift = (png_byte)(16U - sig_bit); /* shift == insignificant bits */
+ /* shift == insignificant bits */
+ shift = (png_byte)((16U - sig_bit) & 0xff);
else
shift = 0; /* keep all 16 bits */
- if (png_ptr->transformations & (PNG_16_TO_8 | PNG_SCALE_16_TO_8))
+ if ((png_ptr->transformations & (PNG_16_TO_8 | PNG_SCALE_16_TO_8)) != 0)
{
/* PNG_MAX_GAMMA_8 is the number of bits to keep - effectively
* the significant bits in the *input* when the output will
* 16-bit output because the 8-bit table assumes the result will be reduced
* to 8 bits.
*/
- if (png_ptr->transformations & (PNG_16_TO_8 | PNG_SCALE_16_TO_8))
+ if ((png_ptr->transformations & (PNG_16_TO_8 | PNG_SCALE_16_TO_8)) != 0)
png_build_16to8_table(png_ptr, &png_ptr->gamma_16_table, shift,
png_ptr->screen_gamma > 0 ? png_product2(png_ptr->colorspace.gamma,
png_ptr->screen_gamma) : PNG_FP_1);
#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \
defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \
defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)
- if (png_ptr->transformations & (PNG_COMPOSE | PNG_RGB_TO_GRAY))
+ if ((png_ptr->transformations & (PNG_COMPOSE | PNG_RGB_TO_GRAY)) != 0)
{
png_build_16bit_table(png_ptr, &png_ptr->gamma_16_to_1, shift,
png_reciprocal(png_ptr->colorspace.gamma));
int setting = (2 + (onoff != 0)) << option;
int current = png_ptr->options;
- png_ptr->options = (png_byte)((current & ~mask) | setting);
+ png_ptr->options = (png_byte)(((current & ~mask) | setting) & 0xff);
return (current & mask) >> option;
}
* contrib/tools/makesRGB.c. The actual sRGB transfer curve defined in the
* specification (see the article at http://en.wikipedia.org/wiki/SRGB)
* is used, not the gamma=1/2.2 approximation use elsewhere in libpng.
- * The sRGB to linear table is exact (to the nearest 16 bit linear fraction).
+ * The sRGB to linear table is exact (to the nearest 16-bit linear fraction).
* The inverse (linear to sRGB) table has accuracies as follows:
*
* For all possible (255*65535+1) input values:
*
* error: -0.513727 - 0.607759, 308 (0.469978%) of readings inexact
*
- * In all cases the inexact readings are off by one.
+ * In all cases the inexact readings are only off by one.
*/
#ifdef PNG_SIMPLIFIED_READ_SUPPORTED
57105,57646,58190,58737,59287,59840,60396,60955,
61517,62082,62650,63221,63795,64372,64952,65535
};
-
-#endif /* simplified read only */
+#endif /* SIMPLIFIED_READ */
/* The base/delta tables are required for both read and write (but currently
* only the simplified versions.)
/* First free any data held in the control structure. */
# ifdef PNG_STDIO_SUPPORTED
- if (cp->owned_file)
+ if (cp->owned_file != 0)
{
FILE *fp = png_voidcast(FILE*, cp->png_ptr->io_ptr);
cp->owned_file = 0;
png_free(c.png_ptr, cp);
/* Then the structures, calling the correct API. */
- if (c.for_write)
+ if (c.for_write != 0)
{
# ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED
png_destroy_write_struct(&c.png_ptr, &c.info_ptr);
}
#endif /* SIMPLIFIED READ/WRITE */
-#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */
+#endif /* READ || WRITE */
/* png.h - header file for PNG reference library
*
- * libpng version 1.6.13 - August 21, 2014
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * libpng version 1.6.21, January 15, 2016
+ *
+ * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
*
* Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
- * libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
- * libpng versions 0.97, January 1998, through 1.6.13 - August 21, 2014: Glenn
+ * libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger
+ * libpng versions 0.97, January 1998, through 1.6.21, January 15, 2016:
+ * Glenn Randers-Pehrson.
* See also "Contributing Authors", below.
- *
- * Note about libpng version numbers:
- *
- * Due to various miscommunications, unforeseen code incompatibilities
- * and occasional factors outside the authors' control, version numbering
- * on the library has not always been consistent and straightforward.
- * The following table summarizes matters since version 0.89c, which was
- * the first widely used release:
- *
- * source png.h png.h shared-lib
- * version string int version
- * ------- ------ ----- ----------
- * 0.89c "1.0 beta 3" 0.89 89 1.0.89
- * 0.90 "1.0 beta 4" 0.90 90 0.90 [should have been 2.0.90]
- * 0.95 "1.0 beta 5" 0.95 95 0.95 [should have been 2.0.95]
- * 0.96 "1.0 beta 6" 0.96 96 0.96 [should have been 2.0.96]
- * 0.97b "1.00.97 beta 7" 1.00.97 97 1.0.1 [should have been 2.0.97]
- * 0.97c 0.97 97 2.0.97
- * 0.98 0.98 98 2.0.98
- * 0.99 0.99 98 2.0.99
- * 0.99a-m 0.99 99 2.0.99
- * 1.00 1.00 100 2.1.0 [100 should be 10000]
- * 1.0.0 (from here on, the 100 2.1.0 [100 should be 10000]
- * 1.0.1 png.h string is 10001 2.1.0
- * 1.0.1a-e identical to the 10002 from here on, the shared library
- * 1.0.2 source version) 10002 is 2.V where V is the source code
- * 1.0.2a-b 10003 version, except as noted.
- * 1.0.3 10003
- * 1.0.3a-d 10004
- * 1.0.4 10004
- * 1.0.4a-f 10005
- * 1.0.5 (+ 2 patches) 10005
- * 1.0.5a-d 10006
- * 1.0.5e-r 10100 (not source compatible)
- * 1.0.5s-v 10006 (not binary compatible)
- * 1.0.6 (+ 3 patches) 10006 (still binary incompatible)
- * 1.0.6d-f 10007 (still binary incompatible)
- * 1.0.6g 10007
- * 1.0.6h 10007 10.6h (testing xy.z so-numbering)
- * 1.0.6i 10007 10.6i
- * 1.0.6j 10007 2.1.0.6j (incompatible with 1.0.0)
- * 1.0.7beta11-14 DLLNUM 10007 2.1.0.7beta11-14 (binary compatible)
- * 1.0.7beta15-18 1 10007 2.1.0.7beta15-18 (binary compatible)
- * 1.0.7rc1-2 1 10007 2.1.0.7rc1-2 (binary compatible)
- * 1.0.7 1 10007 (still compatible)
- * 1.0.8beta1-4 1 10008 2.1.0.8beta1-4
- * 1.0.8rc1 1 10008 2.1.0.8rc1
- * 1.0.8 1 10008 2.1.0.8
- * 1.0.9beta1-6 1 10009 2.1.0.9beta1-6
- * 1.0.9rc1 1 10009 2.1.0.9rc1
- * 1.0.9beta7-10 1 10009 2.1.0.9beta7-10
- * 1.0.9rc2 1 10009 2.1.0.9rc2
- * 1.0.9 1 10009 2.1.0.9
- * 1.0.10beta1 1 10010 2.1.0.10beta1
- * 1.0.10rc1 1 10010 2.1.0.10rc1
- * 1.0.10 1 10010 2.1.0.10
- * 1.0.11beta1-3 1 10011 2.1.0.11beta1-3
- * 1.0.11rc1 1 10011 2.1.0.11rc1
- * 1.0.11 1 10011 2.1.0.11
- * 1.0.12beta1-2 2 10012 2.1.0.12beta1-2
- * 1.0.12rc1 2 10012 2.1.0.12rc1
- * 1.0.12 2 10012 2.1.0.12
- * 1.1.0a-f - 10100 2.1.1.0a-f (branch abandoned)
- * 1.2.0beta1-2 2 10200 2.1.2.0beta1-2
- * 1.2.0beta3-5 3 10200 3.1.2.0beta3-5
- * 1.2.0rc1 3 10200 3.1.2.0rc1
- * 1.2.0 3 10200 3.1.2.0
- * 1.2.1beta1-4 3 10201 3.1.2.1beta1-4
- * 1.2.1rc1-2 3 10201 3.1.2.1rc1-2
- * 1.2.1 3 10201 3.1.2.1
- * 1.2.2beta1-6 12 10202 12.so.0.1.2.2beta1-6
- * 1.0.13beta1 10 10013 10.so.0.1.0.13beta1
- * 1.0.13rc1 10 10013 10.so.0.1.0.13rc1
- * 1.2.2rc1 12 10202 12.so.0.1.2.2rc1
- * 1.0.13 10 10013 10.so.0.1.0.13
- * 1.2.2 12 10202 12.so.0.1.2.2
- * 1.2.3rc1-6 12 10203 12.so.0.1.2.3rc1-6
- * 1.2.3 12 10203 12.so.0.1.2.3
- * 1.2.4beta1-3 13 10204 12.so.0.1.2.4beta1-3
- * 1.0.14rc1 13 10014 10.so.0.1.0.14rc1
- * 1.2.4rc1 13 10204 12.so.0.1.2.4rc1
- * 1.0.14 10 10014 10.so.0.1.0.14
- * 1.2.4 13 10204 12.so.0.1.2.4
- * 1.2.5beta1-2 13 10205 12.so.0.1.2.5beta1-2
- * 1.0.15rc1-3 10 10015 10.so.0.1.0.15rc1-3
- * 1.2.5rc1-3 13 10205 12.so.0.1.2.5rc1-3
- * 1.0.15 10 10015 10.so.0.1.0.15
- * 1.2.5 13 10205 12.so.0.1.2.5
- * 1.2.6beta1-4 13 10206 12.so.0.1.2.6beta1-4
- * 1.0.16 10 10016 10.so.0.1.0.16
- * 1.2.6 13 10206 12.so.0.1.2.6
- * 1.2.7beta1-2 13 10207 12.so.0.1.2.7beta1-2
- * 1.0.17rc1 10 10017 12.so.0.1.0.17rc1
- * 1.2.7rc1 13 10207 12.so.0.1.2.7rc1
- * 1.0.17 10 10017 12.so.0.1.0.17
- * 1.2.7 13 10207 12.so.0.1.2.7
- * 1.2.8beta1-5 13 10208 12.so.0.1.2.8beta1-5
- * 1.0.18rc1-5 10 10018 12.so.0.1.0.18rc1-5
- * 1.2.8rc1-5 13 10208 12.so.0.1.2.8rc1-5
- * 1.0.18 10 10018 12.so.0.1.0.18
- * 1.2.8 13 10208 12.so.0.1.2.8
- * 1.2.9beta1-3 13 10209 12.so.0.1.2.9beta1-3
- * 1.2.9beta4-11 13 10209 12.so.0.9[.0]
- * 1.2.9rc1 13 10209 12.so.0.9[.0]
- * 1.2.9 13 10209 12.so.0.9[.0]
- * 1.2.10beta1-7 13 10210 12.so.0.10[.0]
- * 1.2.10rc1-2 13 10210 12.so.0.10[.0]
- * 1.2.10 13 10210 12.so.0.10[.0]
- * 1.4.0beta1-5 14 10400 14.so.0.0[.0]
- * 1.2.11beta1-4 13 10211 12.so.0.11[.0]
- * 1.4.0beta7-8 14 10400 14.so.0.0[.0]
- * 1.2.11 13 10211 12.so.0.11[.0]
- * 1.2.12 13 10212 12.so.0.12[.0]
- * 1.4.0beta9-14 14 10400 14.so.0.0[.0]
- * 1.2.13 13 10213 12.so.0.13[.0]
- * 1.4.0beta15-36 14 10400 14.so.0.0[.0]
- * 1.4.0beta37-87 14 10400 14.so.14.0[.0]
- * 1.4.0rc01 14 10400 14.so.14.0[.0]
- * 1.4.0beta88-109 14 10400 14.so.14.0[.0]
- * 1.4.0rc02-08 14 10400 14.so.14.0[.0]
- * 1.4.0 14 10400 14.so.14.0[.0]
- * 1.4.1beta01-03 14 10401 14.so.14.1[.0]
- * 1.4.1rc01 14 10401 14.so.14.1[.0]
- * 1.4.1beta04-12 14 10401 14.so.14.1[.0]
- * 1.4.1 14 10401 14.so.14.1[.0]
- * 1.4.2 14 10402 14.so.14.2[.0]
- * 1.4.3 14 10403 14.so.14.3[.0]
- * 1.4.4 14 10404 14.so.14.4[.0]
- * 1.5.0beta01-58 15 10500 15.so.15.0[.0]
- * 1.5.0rc01-07 15 10500 15.so.15.0[.0]
- * 1.5.0 15 10500 15.so.15.0[.0]
- * 1.5.1beta01-11 15 10501 15.so.15.1[.0]
- * 1.5.1rc01-02 15 10501 15.so.15.1[.0]
- * 1.5.1 15 10501 15.so.15.1[.0]
- * 1.5.2beta01-03 15 10502 15.so.15.2[.0]
- * 1.5.2rc01-03 15 10502 15.so.15.2[.0]
- * 1.5.2 15 10502 15.so.15.2[.0]
- * 1.5.3beta01-10 15 10503 15.so.15.3[.0]
- * 1.5.3rc01-02 15 10503 15.so.15.3[.0]
- * 1.5.3beta11 15 10503 15.so.15.3[.0]
- * 1.5.3 [omitted]
- * 1.5.4beta01-08 15 10504 15.so.15.4[.0]
- * 1.5.4rc01 15 10504 15.so.15.4[.0]
- * 1.5.4 15 10504 15.so.15.4[.0]
- * 1.5.5beta01-08 15 10505 15.so.15.5[.0]
- * 1.5.5rc01 15 10505 15.so.15.5[.0]
- * 1.5.5 15 10505 15.so.15.5[.0]
- * 1.5.6beta01-07 15 10506 15.so.15.6[.0]
- * 1.5.6rc01-03 15 10506 15.so.15.6[.0]
- * 1.5.6 15 10506 15.so.15.6[.0]
- * 1.5.7beta01-05 15 10507 15.so.15.7[.0]
- * 1.5.7rc01-03 15 10507 15.so.15.7[.0]
- * 1.5.7 15 10507 15.so.15.7[.0]
- * 1.6.0beta01-40 16 10600 16.so.16.0[.0]
- * 1.6.0rc01-08 16 10600 16.so.16.0[.0]
- * 1.6.0 16 10600 16.so.16.0[.0]
- * 1.6.1beta01-09 16 10601 16.so.16.1[.0]
- * 1.6.1rc01 16 10601 16.so.16.1[.0]
- * 1.6.1 16 10601 16.so.16.1[.0]
- * 1.6.2beta01 16 10602 16.so.16.2[.0]
- * 1.6.2rc01-06 16 10602 16.so.16.2[.0]
- * 1.6.2 16 10602 16.so.16.2[.0]
- * 1.6.3beta01-11 16 10603 16.so.16.3[.0]
- * 1.6.3rc01 16 10603 16.so.16.3[.0]
- * 1.6.3 16 10603 16.so.16.3[.0]
- * 1.6.4beta01-02 16 10604 16.so.16.4[.0]
- * 1.6.4rc01 16 10604 16.so.16.4[.0]
- * 1.6.4 16 10604 16.so.16.4[.0]
- * 1.6.5 16 10605 16.so.16.5[.0]
- * 1.6.6 16 10606 16.so.16.6[.0]
- * 1.6.7beta01-04 16 10607 16.so.16.7[.0]
- * 1.6.7rc01-03 16 10607 16.so.16.7[.0]
- * 1.6.7 16 10607 16.so.16.7[.0]
- * 1.6.8beta01-02 16 10608 16.so.16.8[.0]
- * 1.6.8rc01-02 16 10608 16.so.16.8[.0]
- * 1.6.8 16 10608 16.so.16.8[.0]
- * 1.6.9beta01-04 16 10609 16.so.16.9[.0]
- * 1.6.9rc01-02 16 10609 16.so.16.9[.0]
- * 1.6.9 16 10609 16.so.16.9[.0]
- * 1.6.10beta01-03 16 10610 16.so.16.10[.0]
- * 1.6.10rc01-03 16 10610 16.so.16.10[.0]
- * 1.6.10 16 10610 16.so.16.10[.0]
- * 1.6.11beta01-06 16 10611 16.so.16.11[.0]
- * 1.6.11rc01-02 16 10611 16.so.16.11[.0]
- * 1.6.11 16 10611 16.so.16.11[.0]
- * 1.6.12rc01-03 16 10612 16.so.16.12[.0]
- * 1.6.12 16 10612 16.so.16.12[.0]
- * 1.6.13beta01-04 16 10613 16.so.16.13[.0]
- * 1.6.13rc01-02 16 10613 16.so.16.13[.0]
- * 1.6.13 16 10613 16.so.16.13[.0]
- *
- * Henceforth the source version will match the shared-library major
- * and minor numbers; the shared-library major version number will be
- * used for changes in backward compatibility, as it is intended. The
- * PNG_LIBPNG_VER macro, which is not used within libpng but is available
- * for applications, is an unsigned integer of the form xyyzz corresponding
- * to the source version x.y.z (leading zeros in y and z). Beta versions
- * were given the previous public release number plus a letter, until
- * version 1.0.6j; from then on they were given the upcoming public
- * release number plus "betaNN" or "rcNN".
- *
- * Binary incompatibility exists only when applications make direct access
- * to the info_ptr or png_ptr members through png.h, and the compiled
- * application is loaded with a different version of the library.
- *
- * DLLNUM will change each time there are forward or backward changes
- * in binary compatibility (e.g., when a new feature is added).
- *
- * See libpng-manual.txt or libpng.3 for more information. The PNG
- * specification is available as a W3C Recommendation and as an ISO
- * Specification, <http://www.w3.org/TR/2003/REC-PNG-20031110/
*/
/*
*
* This code is released under the libpng license.
*
- * libpng versions 1.2.6, August 15, 2004, through 1.6.13, August 21, 2014, are
- * Copyright (c) 2004, 2006-2014 Glenn Randers-Pehrson, and are
- * distributed according to the same disclaimer and license as libpng-1.2.5
- * with the following individual added to the list of Contributing Authors:
- *
- * Cosmin Truta
- *
- * libpng versions 1.0.7, July 1, 2000, through 1.2.5, October 3, 2002, are
- * Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
- * distributed according to the same disclaimer and license as libpng-1.0.6
- * with the following individuals added to the list of Contributing Authors:
+ * libpng versions 1.0.7, July 1, 2000, through 1.6.21, January 15, 2016, are
+ * Copyright (c) 2000-2002, 2004, 2006-2016 Glenn Randers-Pehrson, are
+ * derived from libpng-1.0.6, and are distributed according to the same
+ * disclaimer and license as libpng-1.0.6 with the following individuals
+ * added to the list of Contributing Authors:
*
* Simon-Pierre Cadieux
* Eric S. Raymond
+ * Mans Rullgard
+ * Cosmin Truta
* Gilles Vollant
+ * James Yu
*
* and with the following additions to the disclaimer:
*
* the user.
*
* libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson, and are
- * distributed according to the same disclaimer and license as libpng-0.96,
- * with the following individuals added to the list of Contributing Authors:
+ * Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from
+ * libpng-0.96, and are distributed according to the same disclaimer and
+ * license as libpng-0.96, with the following individuals added to the list
+ * of Contributing Authors:
*
* Tom Lane
* Glenn Randers-Pehrson
* Willem van Schaik
*
* libpng versions 0.89, June 1996, through 0.96, May 1997, are
- * Copyright (c) 1996, 1997 Andreas Dilger
- * Distributed according to the same disclaimer and license as libpng-0.88,
- * with the following individuals added to the list of Contributing Authors:
+ * Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88,
+ * and are distributed according to the same disclaimer and license as
+ * libpng-0.88, with the following individuals added to the list of
+ * Contributing Authors:
*
* John Bowler
* Kevin Bracey
* Tom Tanner
*
* libpng versions 0.5, May 1995, through 0.88, January 1996, are
- * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
+ * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
*
* For the purposes of this copyright and license, "Contributing Authors"
* is defined as the following set of individuals:
* 2. Altered versions must be plainly marked as such and must not
* be misrepresented as being the original source.
*
- * 3. This Copyright notice may not be removed or altered from
- * any source or altered source distribution.
+ * 3. This Copyright notice may not be removed or altered from any
+ * source or altered source distribution.
*
* The Contributing Authors and Group 42, Inc. specifically permit, without
* fee, and encourage the use of this source code as a component to
* supporting the PNG file format in commercial products. If you use this
* source code in a product, acknowledgment is not required but would be
* appreciated.
+ *
+ * END OF COPYRIGHT NOTICE, DISCLAIMER, and LICENSE.
*/
/*
* A "png_get_copyright" function is available, for convenient use in "about"
* boxes and the like:
*
- * printf("%s", png_get_copyright(NULL));
+ * printf("%s", png_get_copyright(NULL));
*
* Also, the PNG logo (in PNG format, of course) is supplied in the
* files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
*/
/*
- * Libpng is OSI Certified Open Source Software. OSI Certified is a
- * certification mark of the Open Source Initiative.
+ * Libpng is OSI Certified Open Source Software. OSI Certified Open Source is
+ * a certification mark of the Open Source Initiative. OSI has not addressed
+ * the additional disclaimers inserted at version 1.0.7.
*/
/*
* Thanks to Frank J. T. Wojcik for helping with the documentation.
*/
+/* Note about libpng version numbers:
+ *
+ * Due to various miscommunications, unforeseen code incompatibilities
+ * and occasional factors outside the authors' control, version numbering
+ * on the library has not always been consistent and straightforward.
+ * The following table summarizes matters since version 0.89c, which was
+ * the first widely used release:
+ *
+ * source png.h png.h shared-lib
+ * version string int version
+ * ------- ------ ----- ----------
+ * 0.89c "1.0 beta 3" 0.89 89 1.0.89
+ * 0.90 "1.0 beta 4" 0.90 90 0.90 [should have been 2.0.90]
+ * 0.95 "1.0 beta 5" 0.95 95 0.95 [should have been 2.0.95]
+ * 0.96 "1.0 beta 6" 0.96 96 0.96 [should have been 2.0.96]
+ * 0.97b "1.00.97 beta 7" 1.00.97 97 1.0.1 [should have been 2.0.97]
+ * 0.97c 0.97 97 2.0.97
+ * 0.98 0.98 98 2.0.98
+ * 0.99 0.99 98 2.0.99
+ * 0.99a-m 0.99 99 2.0.99
+ * 1.00 1.00 100 2.1.0 [100 should be 10000]
+ * 1.0.0 (from here on, the 100 2.1.0 [100 should be 10000]
+ * 1.0.1 png.h string is 10001 2.1.0
+ * 1.0.1a-e identical to the 10002 from here on, the shared library
+ * 1.0.2 source version) 10002 is 2.V where V is the source code
+ * 1.0.2a-b 10003 version, except as noted.
+ * 1.0.3 10003
+ * 1.0.3a-d 10004
+ * 1.0.4 10004
+ * 1.0.4a-f 10005
+ * 1.0.5 (+ 2 patches) 10005
+ * 1.0.5a-d 10006
+ * 1.0.5e-r 10100 (not source compatible)
+ * 1.0.5s-v 10006 (not binary compatible)
+ * 1.0.6 (+ 3 patches) 10006 (still binary incompatible)
+ * 1.0.6d-f 10007 (still binary incompatible)
+ * 1.0.6g 10007
+ * 1.0.6h 10007 10.6h (testing xy.z so-numbering)
+ * 1.0.6i 10007 10.6i
+ * 1.0.6j 10007 2.1.0.6j (incompatible with 1.0.0)
+ * 1.0.7beta11-14 DLLNUM 10007 2.1.0.7beta11-14 (binary compatible)
+ * 1.0.7beta15-18 1 10007 2.1.0.7beta15-18 (binary compatible)
+ * 1.0.7rc1-2 1 10007 2.1.0.7rc1-2 (binary compatible)
+ * 1.0.7 1 10007 (still compatible)
+ * ...
+ * 1.0.19 10 10019 10.so.0.19[.0]
+ * ...
+ * 1.2.53 13 10253 12.so.0.53[.0]
+ * ...
+ * 1.5.23 15 10523 15.so.15.23[.0]
+ * ...
+ * 1.6.21 16 10621 16.so.16.21[.0]
+ *
+ * Henceforth the source version will match the shared-library major
+ * and minor numbers; the shared-library major version number will be
+ * used for changes in backward compatibility, as it is intended. The
+ * PNG_LIBPNG_VER macro, which is not used within libpng but is available
+ * for applications, is an unsigned integer of the form xyyzz corresponding
+ * to the source version x.y.z (leading zeros in y and z). Beta versions
+ * were given the previous public release number plus a letter, until
+ * version 1.0.6j; from then on they were given the upcoming public
+ * release number plus "betaNN" or "rcNN".
+ *
+ * Binary incompatibility exists only when applications make direct access
+ * to the info_ptr or png_ptr members through png.h, and the compiled
+ * application is loaded with a different version of the library.
+ *
+ * DLLNUM will change each time there are forward or backward changes
+ * in binary compatibility (e.g., when a new feature is added).
+ *
+ * See libpng.txt or libpng.3 for more information. The PNG specification
+ * is available as a W3C Recommendation and as an ISO Specification,
+ * <http://www.w3.org/TR/2003/REC-PNG-20031110/
+ */
+
/*
* Y2K compliance in libpng:
* =========================
*
- * August 21, 2014
+ * January 15, 2016
*
* Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration.
*
* This is your unofficial assurance that libpng from version 0.71 and
- * upward through 1.6.13 are Y2K compliant. It is my belief that
+ * upward through 1.6.21 are Y2K compliant. It is my belief that
* earlier versions were also Y2K compliant.
*
* Libpng only has two year fields. One is a 2-byte unsigned integer
*/
/* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.6.13"
+#define PNG_LIBPNG_VER_STRING "1.6.21"
#define PNG_HEADER_VERSION_STRING \
- " libpng version 1.6.13 - August 21, 2014\n"
+ " libpng version 1.6.21 - January 15, 2016\n"
#define PNG_LIBPNG_VER_SONUM 16
#define PNG_LIBPNG_VER_DLLNUM 16
/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
#define PNG_LIBPNG_VER_MAJOR 1
#define PNG_LIBPNG_VER_MINOR 6
-#define PNG_LIBPNG_VER_RELEASE 13
+#define PNG_LIBPNG_VER_RELEASE 21
/* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero:
* version 1.0.0 was mis-numbered 100 instead of 10000). From
* version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release
*/
-#define PNG_LIBPNG_VER 10613 /* 1.6.13 */
+#define PNG_LIBPNG_VER 10621 /* 1.6.21 */
/* Library configuration: these options cannot be changed after
* the library has been built.
/* This file is arranged in several sections:
*
- * 1. Any configuration options that can be specified by for the application
+ * 1. [omitted]
+ * 2. Any configuration options that can be specified by for the application
* code when it is built. (Build time configuration is in pnglibconf.h)
- * 2. Type definitions (base types are defined in pngconf.h), structure
+ * 3. Type definitions (base types are defined in pngconf.h), structure
* definitions.
- * 3. Exported library functions.
- * 4. Simplified API.
+ * 4. Exported library functions.
+ * 5. Simplified API.
+ * 6. Implementation options.
*
* The library source code has additional files (principally pngpriv.h) that
* allow configuration of the library.
*/
-/* Section 1: run time configuration
+
+/* Section 1: [omitted] */
+
+/* Section 2: run time configuration
* See pnglibconf.h for build time configuration
*
* Run time configuration allows the application to choose between
* Otherwise the calls are mapped to png_error.
*/
-/* Section 2: type definitions, including structures and compile time
+/* Section 3: type definitions, including structures and compile time
* constants.
* See pngconf.h for base types that vary by machine/system
*/
/* This triggers a compiler error in png.c, if png.c and png.h
* do not agree upon the version number.
*/
-typedef char* png_libpng_version_1_6_13;
+typedef char* png_libpng_version_1_6_21;
/* Basic control structions. Read libpng-manual.txt or libpng.3 for more info.
*
#define PNG_INFO_iCCP 0x1000 /* ESR, 1.0.6 */
#define PNG_INFO_sPLT 0x2000 /* ESR, 1.0.6 */
#define PNG_INFO_sCAL 0x4000 /* ESR, 1.0.6 */
+#if INT_MAX >= 0x8000 /* else this might break */
#define PNG_INFO_IDAT 0x8000 /* ESR, 1.0.6 */
+#endif
/* This is used for the transformation routines, as some of them
* change these values for the row. It also should enable using
#define PNG_TRANSFORM_GRAY_TO_RGB 0x2000 /* read only */
/* Added to libpng-1.5.4 */
#define PNG_TRANSFORM_EXPAND_16 0x4000 /* read only */
+#if INT_MAX >= 0x8000 /* else this might break */
#define PNG_TRANSFORM_SCALE_16 0x8000 /* read only */
+#endif
/* Flags for MNG supported features */
#define PNG_FLAG_MNG_EMPTY_PLTE 0x01
png_alloc_size_t));
typedef PNG_CALLBACK(void, *png_free_ptr, (png_structp, png_voidp));
-/* Section 3: exported functions
+/* Section 4: exported functions
* Here are the function definitions most commonly used. This is not
* the place to find out how to use libpng. See libpng-manual.txt for the
* full explanation, see example.c for the summary. This just provides
/* Convert from time_t to png_time. Uses gmtime() */
PNG_EXPORT(25, void, png_convert_from_time_t, (png_timep ptime, time_t ttime));
-#endif /* PNG_CONVERT_tIME_SUPPORTED */
+#endif /* CONVERT_tIME */
#ifdef PNG_READ_EXPAND_SUPPORTED
/* Expand data to 24-bit RGB, or 8-bit grayscale, with alpha if available. */
#endif
#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED)
-/* Add a filler byte to 8-bit Gray or 24-bit RGB images. */
+/* Add a filler byte to 8-bit or 16-bit Gray or 24-bit or 48-bit RGB images. */
PNG_EXPORT(39, void, png_set_filler, (png_structrp png_ptr, png_uint_32 filler,
int flags));
/* The values of the PNG_FILLER_ defines should NOT be changed */
# define PNG_FILLER_BEFORE 0
# define PNG_FILLER_AFTER 1
-/* Add an alpha byte to 8-bit Gray or 24-bit RGB images. */
+/* Add an alpha byte to 8-bit or 16-bit Gray or 24-bit or 48-bit RGB images. */
PNG_EXPORT(40, void, png_set_add_alpha, (png_structrp png_ptr,
png_uint_32 filler, int flags));
-#endif /* PNG_READ_FILLER_SUPPORTED || PNG_WRITE_FILLER_SUPPORTED */
+#endif /* READ_FILLER || WRITE_FILLER */
#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED)
/* Swap bytes in 16-bit depth files. */
#define PNG_CRC_QUIET_USE 4 /* quiet/use data quiet/use data */
#define PNG_CRC_NO_CHANGE 5 /* use current value use current value */
+#ifdef PNG_WRITE_SUPPORTED
/* These functions give the user control over the scan-line filtering in
* libpng and the compression methods used by zlib. These functions are
* mainly useful for testing, as the defaults should work with most users.
*/
PNG_EXPORT(67, void, png_set_filter, (png_structrp png_ptr, int method,
int filters));
+#endif /* WRITE */
/* Flags for png_set_filter() to say which filters to use. The flags
* are chosen so that they don't conflict with real filter types
#define PNG_FILTER_VALUE_PAETH 4
#define PNG_FILTER_VALUE_LAST 5
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /* EXPERIMENTAL */
-/* The "heuristic_method" is given by one of the PNG_FILTER_HEURISTIC_
- * defines, either the default (minimum-sum-of-absolute-differences), or
- * the experimental method (weighted-minimum-sum-of-absolute-differences).
- *
- * Weights are factors >= 1.0, indicating how important it is to keep the
- * filter type consistent between rows. Larger numbers mean the current
- * filter is that many times as likely to be the same as the "num_weights"
- * previous filters. This is cumulative for each previous row with a weight.
- * There needs to be "num_weights" values in "filter_weights", or it can be
- * NULL if the weights aren't being specified. Weights have no influence on
- * the selection of the first row filter. Well chosen weights can (in theory)
- * improve the compression for a given image.
- *
- * Costs are factors >= 1.0 indicating the relative decoding costs of a
- * filter type. Higher costs indicate more decoding expense, and are
- * therefore less likely to be selected over a filter with lower computational
- * costs. There needs to be a value in "filter_costs" for each valid filter
- * type (given by PNG_FILTER_VALUE_LAST), or it can be NULL if you aren't
- * setting the costs. Costs try to improve the speed of decompression without
- * unduly increasing the compressed image size.
- *
- * A negative weight or cost indicates the default value is to be used, and
- * values in the range [0.0, 1.0) indicate the value is to remain unchanged.
- * The default values for both weights and costs are currently 1.0, but may
- * change if good general weighting/cost heuristics can be found. If both
- * the weights and costs are set to 1.0, this degenerates the WEIGHTED method
- * to the UNWEIGHTED method, but with added encoding time/computation.
- */
+#ifdef PNG_WRITE_SUPPORTED
+#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /* DEPRECATED */
PNG_FP_EXPORT(68, void, png_set_filter_heuristics, (png_structrp png_ptr,
int heuristic_method, int num_weights, png_const_doublep filter_weights,
png_const_doublep filter_costs))
(png_structrp png_ptr, int heuristic_method, int num_weights,
png_const_fixed_point_p filter_weights,
png_const_fixed_point_p filter_costs))
-#endif /* PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */
+#endif /* WRITE_WEIGHTED_FILTER */
-/* Heuristic used for row filter selection. These defines should NOT be
- * changed.
- */
+/* The following are no longer used and will be removed from libpng-1.7: */
#define PNG_FILTER_HEURISTIC_DEFAULT 0 /* Currently "UNWEIGHTED" */
#define PNG_FILTER_HEURISTIC_UNWEIGHTED 1 /* Used by libpng < 0.95 */
#define PNG_FILTER_HEURISTIC_WEIGHTED 2 /* Experimental feature */
#define PNG_FILTER_HEURISTIC_LAST 3 /* Not a valid value */
-#ifdef PNG_WRITE_SUPPORTED
/* Set the library compression level. Currently, valid values range from
* 0 - 9, corresponding directly to the zlib compression levels 0 - 9
* (0 - no compression, 9 - "maximal" compression). Note that tests have
* for PNG images, and do considerably fewer caclulations. In the future,
* these values may not correspond directly to the zlib compression levels.
*/
+#ifdef PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
PNG_EXPORT(69, void, png_set_compression_level, (png_structrp png_ptr,
int level));
PNG_EXPORT(73, void, png_set_compression_method, (png_structrp png_ptr,
int method));
-#endif
+#endif /* WRITE_CUSTOMIZE_COMPRESSION */
#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
/* Also set zlib parameters for compressing non-IDAT chunks */
PNG_EXPORT(226, void, png_set_text_compression_method, (png_structrp png_ptr,
int method));
-#endif /* PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED */
+#endif /* WRITE_CUSTOMIZE_ZTXT_COMPRESSION */
+#endif /* WRITE */
/* These next functions are called for input/output, memory, and error
* handling. They are in the file pngrio.c, pngwio.c, and pngerror.c,
*
* The integer return from the callback function is interpreted thus:
*
- * negative: An error occured, png_chunk_error will be called.
+ * negative: An error occurred; png_chunk_error will be called.
* zero: The chunk was not handled, the chunk will be saved. A critical
* chunk will cause an error at this point unless it is to be saved.
* positive: The chunk was handled, libpng will ignore/discard it.
*/
PNG_EXPORT(93, void, png_progressive_combine_row, (png_const_structrp png_ptr,
png_bytep old_row, png_const_bytep new_row));
-#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
+#endif /* PROGRESSIVE_READ */
PNG_EXPORTA(94, png_voidp, png_malloc, (png_const_structrp png_ptr,
png_alloc_size_t size), PNG_ALLOCATED);
PNG_EXPORT(129, png_int_32, png_get_y_offset_microns,
(png_const_structrp png_ptr, png_const_inforp info_ptr));
-#endif /* PNG_EASY_ACCESS_SUPPORTED */
+#endif /* EASY_ACCESS */
#ifdef PNG_READ_SUPPORTED
/* Returns pointer to signature string read from PNG header */
PNG_EXPORT(171, void, png_set_sCAL_s, (png_const_structrp png_ptr,
png_inforp info_ptr, int unit,
png_const_charp swidth, png_const_charp sheight));
-#endif /* PNG_sCAL_SUPPORTED */
+#endif /* sCAL */
#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
/* Provide the default handling for all unknown chunks or, optionally, for
PNG_EXPORT(198, png_uint_32, png_get_pHYs_dpi, (png_const_structrp png_ptr,
png_const_inforp info_ptr, png_uint_32 *res_x, png_uint_32 *res_y,
int *unit_type));
-# endif /* PNG_pHYs_SUPPORTED */
-#endif /* PNG_INCH_CONVERSIONS_SUPPORTED */
+# endif /* pHYs */
+#endif /* INCH_CONVERSIONS */
/* Added in libpng-1.4.0 */
#ifdef PNG_IO_STATE_SUPPORTED
# define PNG_IO_CHUNK_CRC 0x0080 /* currently at the chunk crc */
# define PNG_IO_MASK_OP 0x000f /* current operation: reading/writing */
# define PNG_IO_MASK_LOC 0x00f0 /* current location: sig/hdr/data/crc */
-#endif /* ?PNG_IO_STATE_SUPPORTED */
+#endif /* IO_STATE */
/* Interlace support. The following macros are always defined so that if
* libpng interlace handling is turned off the macros may be used to handle
* (png_uint_16)(alpha) \
+ (png_uint_16)(bg)*(png_uint_16)(255 \
- (png_uint_16)(alpha)) + 128); \
- (composite) = (png_byte)((temp + (temp >> 8)) >> 8); }
+ (composite) = (png_byte)(((temp + (temp >> 8)) >> 8) & 0xff); }
# define png_composite_16(composite, fg, alpha, bg) \
{ png_uint_32 temp = (png_uint_32)((png_uint_32)(fg) \
* (png_uint_32)(alpha) \
+ (png_uint_32)(bg)*(65535 \
- (png_uint_32)(alpha)) + 32768); \
- (composite) = (png_uint_16)((temp + (temp >> 16)) >> 16); }
+ (composite) = (png_uint_16)(0xffff & ((temp + (temp >> 16)) >> 16)); }
#else /* Standard method using integer division */
-# define png_composite(composite, fg, alpha, bg) \
- (composite) = (png_byte)(((png_uint_16)(fg) * (png_uint_16)(alpha) + \
- (png_uint_16)(bg) * (png_uint_16)(255 - (png_uint_16)(alpha)) + \
- 127) / 255)
+# define png_composite(composite, fg, alpha, bg) \
+ (composite) = \
+ (png_byte)(0xff & (((png_uint_16)(fg) * (png_uint_16)(alpha) + \
+ (png_uint_16)(bg) * (png_uint_16)(255 - (png_uint_16)(alpha)) + \
+ 127) / 255))
# define png_composite_16(composite, fg, alpha, bg) \
- (composite) = (png_uint_16)(((png_uint_32)(fg) * (png_uint_32)(alpha) + \
- (png_uint_32)(bg)*(png_uint_32)(65535 - (png_uint_32)(alpha)) + \
- 32767) / 65535)
-#endif /* PNG_READ_COMPOSITE_NODIV_SUPPORTED */
+ (composite) = \
+ (png_uint_16)(0xffff & (((png_uint_32)(fg) * (png_uint_32)(alpha) + \
+ (png_uint_32)(bg)*(png_uint_32)(65535 - (png_uint_32)(alpha)) + \
+ 32767) / 65535))
+#endif /* READ_COMPOSITE_NODIV */
#ifdef PNG_READ_INT_FUNCTIONS_SUPPORTED
PNG_EXPORT(201, png_uint_32, png_get_uint_32, (png_const_bytep buf));
# define PNG_get_int_32(buf) \
((png_int_32)((*(buf) & 0x80) \
- ? -((png_int_32)((png_get_uint_32(buf) ^ 0xffffffffL) + 1)) \
+ ? -((png_int_32)(((png_get_uint_32(buf)^0xffffffffU)+1U)&0x7fffffffU)) \
: (png_int_32)png_get_uint_32(buf)))
/* If PNG_PREFIX is defined the same thing as below happens in pnglibconf.h,
# endif
#endif
+#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
+PNG_EXPORT(242, void, png_set_check_for_invalid_index,
+ (png_structrp png_ptr, int allowed));
+# ifdef PNG_GET_PALETTE_MAX_SUPPORTED
+PNG_EXPORT(243, int, png_get_palette_max, (png_const_structp png_ptr,
+ png_const_infop info_ptr));
+# endif
+#endif /* CHECK_FOR_INVALID_INDEX */
+
/*******************************************************************************
- * SIMPLIFIED API
+ * Section 5: SIMPLIFIED API
*******************************************************************************
*
* Please read the documentation in libpng-manual.txt (TODO: write said
*
* To read a PNG file using the simplified API:
*
- * 1) Declare a 'png_image' structure (see below) on the stack and set the
- * version field to PNG_IMAGE_VERSION.
+ * 1) Declare a 'png_image' structure (see below) on the stack, set the
+ * version field to PNG_IMAGE_VERSION and the 'opaque' pointer to NULL
+ * (this is REQUIRED, your program may crash if you don't do it.)
* 2) Call the appropriate png_image_begin_read... function.
* 3) Set the png_image 'format' member to the required sample format.
* 4) Allocate a buffer for the image and, if required, the color-map.
* when it is being read or defines the in-memory format of an image that you
* need to write:
*/
+#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) || \
+ defined(PNG_SIMPLIFIED_WRITE_SUPPORTED)
+
#define PNG_IMAGE_VERSION 1
typedef struct png_control *png_controlp;
# define PNG_IMAGE_WARNING 1
# define PNG_IMAGE_ERROR 2
/*
- * The result is a two bit code such that a value more than 1 indicates
+ * The result is a two-bit code such that a value more than 1 indicates
* a failure in the API just called:
*
* 0 - no warning or error
* called to read or write the color-map and set the format correctly for the
* image data. Do not set the PNG_FORMAT_FLAG_COLORMAP bit directly!
*
- * NOTE: libpng can be built with particular features disabled, if you see
+ * NOTE: libpng can be built with particular features disabled. If you see
* compiler errors because the definition of one of the following flags has been
* compiled out it is because libpng does not have the required support. It is
* possible, however, for the libpng configuration to enable the format on just
*/
#define PNG_FORMAT_FLAG_ALPHA 0x01U /* format with an alpha channel */
#define PNG_FORMAT_FLAG_COLOR 0x02U /* color format: otherwise grayscale */
-#define PNG_FORMAT_FLAG_LINEAR 0x04U /* 2 byte channels else 1 byte */
+#define PNG_FORMAT_FLAG_LINEAR 0x04U /* 2-byte channels else 1-byte */
#define PNG_FORMAT_FLAG_COLORMAP 0x08U /* image data is color-mapped */
#ifdef PNG_FORMAT_BGR_SUPPORTED
PNG_EXPORT(235, int, png_image_begin_read_from_stdio, (png_imagep image,
FILE* file));
/* The PNG header is read from the stdio FILE object. */
-#endif /* PNG_STDIO_SUPPORTED */
+#endif /* STDIO */
PNG_EXPORT(236, int, png_image_begin_read_from_memory, (png_imagep image,
png_const_voidp memory, png_size_t size));
/* Free any data allocated by libpng in image->opaque, setting the pointer to
* NULL. May be called at any time after the structure is initialized.
*/
-#endif /* PNG_SIMPLIFIED_READ_SUPPORTED */
+#endif /* SIMPLIFIED_READ */
#ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED
#ifdef PNG_STDIO_SUPPORTED
*
* With all APIs row_stride is handled as in the read APIs - it is the spacing
* from one row to the next in component sized units (1 or 2 bytes) and if
- * negative indicates a bottom-up row layout in the buffer.
+ * negative indicates a bottom-up row layout in the buffer. If row_stride is zero,
+ * libpng will calculate it for you from the image width and number of channels.
*
- * Note that the write API does not support interlacing or sub-8-bit pixels.
+ * Note that the write API does not support interlacing, sub-8-bit pixels, indexed
+ * PNG (color_type 3) or most ancillary chunks.
*/
-#endif /* PNG_STDIO_SUPPORTED */
-#endif /* PNG_SIMPLIFIED_WRITE_SUPPORTED */
+#endif /* STDIO */
+#endif /* SIMPLIFIED_WRITE */
/*******************************************************************************
* END OF SIMPLIFIED API
******************************************************************************/
-
-#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
-PNG_EXPORT(242, void, png_set_check_for_invalid_index,
- (png_structrp png_ptr, int allowed));
-# ifdef PNG_GET_PALETTE_MAX_SUPPORTED
-PNG_EXPORT(243, int, png_get_palette_max, (png_const_structp png_ptr,
- png_const_infop info_ptr));
-# endif
-#endif /* CHECK_FOR_INVALID_INDEX */
+#endif /* SIMPLIFIED_{READ|WRITE} */
/*******************************************************************************
- * IMPLEMENTATION OPTIONS
+ * Section 6: IMPLEMENTATION OPTIONS
*******************************************************************************
*
* Support for arbitrary implementation-specific optimizations. The API allows
PNG_EXPORT(244, int, png_set_option, (png_structrp png_ptr, int option,
int onoff));
-#endif
+#endif /* SET_OPTION */
/*******************************************************************************
* END OF HARDWARE AND SOFTWARE OPTIONS
******************************************************************************/
-/* Maintainer: Put new public prototypes here ^, in libpng.3, and project
- * defs, scripts/pnglibconf.h, and scripts/pnglibconf.h.prebuilt
+/* Maintainer: Put new public prototypes here ^, in libpng.3, in project
+ * defs, and in scripts/symbols.def.
*/
/* The last ordinal number (this is the *last* one already used; the next
- * one to use is one more than this.) Maintainer, remember to add an entry to
- * scripts/symbols.def as well.
+ * one to use is one more than this.)
*/
#ifdef PNG_EXPORT_LAST_ORDINAL
PNG_EXPORT_LAST_ORDINAL(244);
/* pngconf.h - machine configurable file for libpng
*
- * libpng version 1.6.13 - August 21, 2014
+ * libpng version 1.6.21, January 15, 2016
*
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*
- */
-
-/* Any machine specific code is near the front of this file, so if you
+ * Any machine specific code is near the front of this file, so if you
* are configuring libpng for a machine, you may want to read the section
* starting here down to where it starts to typedef png_color, png_text,
* and png_info.
#ifndef PNGCONF_H
#define PNGCONF_H
-/* To do: Do all of this in scripts/pnglibconf.dfa */
-#ifdef PNG_SAFE_LIMITS_SUPPORTED
-# ifdef PNG_USER_WIDTH_MAX
-# undef PNG_USER_WIDTH_MAX
-# define PNG_USER_WIDTH_MAX 1000000L
-# endif
-# ifdef PNG_USER_HEIGHT_MAX
-# undef PNG_USER_HEIGHT_MAX
-# define PNG_USER_HEIGHT_MAX 1000000L
-# endif
-# ifdef PNG_USER_CHUNK_MALLOC_MAX
-# undef PNG_USER_CHUNK_MALLOC_MAX
-# define PNG_USER_CHUNK_MALLOC_MAX 4000000L
-# endif
-# ifdef PNG_USER_CHUNK_CACHE_MAX
-# undef PNG_USER_CHUNK_CACHE_MAX
-# define PNG_USER_CHUNK_CACHE_MAX 128
-# endif
-#endif
-
#ifndef PNG_BUILDING_SYMBOL_TABLE /* else includes may cause problems */
/* From libpng 1.6.0 libpng requires an ANSI X3.159-1989 ("ISOC90") compliant C
*/
#define PNG_CONST const /* backward compatibility only */
-/* This controls optimization of the reading of 16 and 32 bit values
+/* This controls optimization of the reading of 16-bit and 32-bit values
* from PNG files. It can be set on a per-app-file basis - it
* just changes whether a macro is used when the function is called.
* The library builder sets the default; if read functions are not
* table entries, so we discard it here. See the .dfn files in the
* scripts directory.
*/
-#ifndef PNG_EXPORTA
-# define PNG_EXPORTA(ordinal, type, name, args, attributes)\
- PNG_FUNCTION(PNG_EXPORT_TYPE(type),(PNGAPI name),PNGARG(args), \
- extern attributes)
+#ifndef PNG_EXPORTA
+# define PNG_EXPORTA(ordinal, type, name, args, attributes) \
+ PNG_FUNCTION(PNG_EXPORT_TYPE(type), (PNGAPI name), PNGARG(args), \
+ PNG_LINKAGE_API attributes)
#endif
/* ANSI-C (C90) does not permit a macro to be invoked with an empty argument,
*/
#define PNG_EMPTY /*empty list*/
-#define PNG_EXPORT(ordinal, type, name, args)\
+#define PNG_EXPORT(ordinal, type, name, args) \
PNG_EXPORTA(ordinal, type, name, args, PNG_EMPTY)
/* Use PNG_REMOVED to comment out a removed interface. */
#if CHAR_BIT == 8 && UCHAR_MAX == 255
typedef unsigned char png_byte;
#else
-# error "libpng requires 8 bit bytes"
+# error "libpng requires 8-bit bytes"
#endif
#if INT_MIN == -32768 && INT_MAX == 32767
#elif SHRT_MIN == -32768 && SHRT_MAX == 32767
typedef short png_int_16;
#else
-# error "libpng requires a signed 16 bit type"
+# error "libpng requires a signed 16-bit type"
#endif
#if UINT_MAX == 65535
#elif USHRT_MAX == 65535
typedef unsigned short png_uint_16;
#else
-# error "libpng requires an unsigned 16 bit type"
+# error "libpng requires an unsigned 16-bit type"
#endif
#if INT_MIN < -2147483646 && INT_MAX > 2147483646
#elif LONG_MIN < -2147483646 && LONG_MAX > 2147483646
typedef long int png_int_32;
#else
-# error "libpng requires a signed 32 bit (or more) type"
+# error "libpng requires a signed 32-bit (or more) type"
#endif
#if UINT_MAX > 4294967294
#elif ULONG_MAX > 4294967294
typedef unsigned long int png_uint_32;
#else
-# error "libpng requires an unsigned 32 bit (or more) type"
+# error "libpng requires an unsigned 32-bit (or more) type"
#endif
/* Prior to 1.6.0 it was possible to disable the use of size_t, 1.6.0, however,
/* pngdebug.h - Debugging macros for libpng, also used in pngtest.c
*
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.8 [December 19, 2013]
+ * Copyright (c) 1998-2002,2004,2006-2013 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
- * Last changed in libpng 1.6.8 [December 19, 2013]
- *
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
/* pngerror.c - stub functions for i/o and memory allocation
*
- * Last changed in libpng 1.6.13 [August 21, 2014]
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.15 [November 20, 2014]
+ * Copyright (c) 1998-2002,2004,2006-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
static void /* PRIVATE */
png_default_warning PNGARG((png_const_structrp png_ptr,
png_const_charp warning_message));
-#endif /* PNG_WARNINGS_SUPPORTED */
+#endif /* WARNINGS */
/* This function is called whenever there is a fatal error. This function
* should not be changed. If there is a need to handle errors differently,
char msg[16];
if (png_ptr != NULL)
{
- if (png_ptr->flags&
- (PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))
+ if ((png_ptr->flags &
+ (PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) != 0
{
if (*error_message == PNG_LITERAL_SHARP)
{
if (error_message[offset] == ' ')
break;
- if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT)
+ if ((png_ptr->flags & PNG_FLAG_STRIP_ERROR_TEXT) != 0)
{
int i;
for (i = 0; i < offset - 1; i++)
else
{
- if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT)
+ if ((png_ptr->flags & PNG_FLAG_STRIP_ERROR_TEXT) != 0)
{
msg[0] = '0';
msg[1] = '\0';
use the default handler, which will not return. */
png_default_error(png_ptr, "");
}
-#endif /* PNG_ERROR_TEXT_SUPPORTED */
+#endif /* ERROR_TEXT */
/* Utility to safely appends strings to a buffer. This never errors out so
* error checking is not required in the caller.
case PNG_NUMBER_FORMAT_fixed:
/* Needs five digits (the fraction) */
mincount = 5;
- if (output || number % 10 != 0)
+ if (output != 0 || number % 10 != 0)
{
*--end = digits[number % 10];
output = 1;
++count;
/* Float a fixed number here: */
- if (format == PNG_NUMBER_FORMAT_fixed) if (count == 5) if (end > start)
+ if ((format == PNG_NUMBER_FORMAT_fixed) && (count == 5) && (end > start))
{
/* End of the fraction, but maybe nothing was output? In that case
* drop the decimal point. If the number is a true zero handle that
if (png_ptr != NULL)
{
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
- if (png_ptr->flags&
- (PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))
+ if ((png_ptr->flags &
+ (PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) != 0)
#endif
{
if (*warning_message == PNG_LITERAL_SHARP)
*/
png_warning(png_ptr, msg);
}
-#endif /* PNG_WARNINGS_SUPPORTED */
+#endif /* WARNINGS */
#ifdef PNG_BENIGN_ERRORS_SUPPORTED
void PNGAPI
png_benign_error(png_const_structrp png_ptr, png_const_charp error_message)
{
- if (png_ptr->flags & PNG_FLAG_BENIGN_ERRORS_WARN)
+ if ((png_ptr->flags & PNG_FLAG_BENIGN_ERRORS_WARN) != 0)
{
# ifdef PNG_READ_SUPPORTED
if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0 &&
void /* PRIVATE */
png_app_warning(png_const_structrp png_ptr, png_const_charp error_message)
{
- if (png_ptr->flags & PNG_FLAG_APP_WARNINGS_WARN)
+ if ((png_ptr->flags & PNG_FLAG_APP_WARNINGS_WARN) != 0)
png_warning(png_ptr, error_message);
else
png_error(png_ptr, error_message);
void /* PRIVATE */
png_app_error(png_const_structrp png_ptr, png_const_charp error_message)
{
- if (png_ptr->flags & PNG_FLAG_APP_ERRORS_WARN)
+ if ((png_ptr->flags & PNG_FLAG_APP_ERRORS_WARN) != 0)
png_warning(png_ptr, error_message);
else
png_error(png_ptr, error_message);
int c = (int)(chunk_name >> ishift) & 0xff;
ishift -= 8;
- if (isnonalpha(c))
+ if (isnonalpha(c) != 0)
{
buffer[iout++] = PNG_LITERAL_LEFT_SQUARE_BRACKET;
buffer[iout++] = png_digit[(c & 0xf0) >> 4];
buffer[iout] = '\0';
}
}
-#endif /* PNG_WARNINGS_SUPPORTED || PNG_ERROR_TEXT_SUPPORTED */
+#endif /* WARNINGS || ERROR_TEXT */
#if defined(PNG_READ_SUPPORTED) && defined(PNG_ERROR_TEXT_SUPPORTED)
PNG_FUNCTION(void,PNGAPI
png_error(png_ptr, msg);
}
}
-#endif /* PNG_READ_SUPPORTED && PNG_ERROR_TEXT_SUPPORTED */
+#endif /* READ && ERROR_TEXT */
#ifdef PNG_WARNINGS_SUPPORTED
void PNGAPI
png_warning(png_ptr, msg);
}
}
-#endif /* PNG_WARNINGS_SUPPORTED */
+#endif /* WARNINGS */
#ifdef PNG_READ_SUPPORTED
#ifdef PNG_BENIGN_ERRORS_SUPPORTED
png_chunk_benign_error(png_const_structrp png_ptr, png_const_charp
error_message)
{
- if (png_ptr->flags & PNG_FLAG_BENIGN_ERRORS_WARN)
+ if ((png_ptr->flags & PNG_FLAG_BENIGN_ERRORS_WARN) != 0)
png_chunk_warning(png_ptr, error_message);
else
# endif
}
#endif
-#endif /* PNG_READ_SUPPORTED */
+#endif /* READ */
void /* PRIVATE */
png_chunk_report(png_const_structrp png_ptr, png_const_charp message, int error)
* unconditionally does the right thing.
*/
# if defined(PNG_READ_SUPPORTED) && defined(PNG_WRITE_SUPPORTED)
- if (png_ptr->mode & PNG_IS_READ_STRUCT)
+ if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0)
# endif
# ifdef PNG_READ_SUPPORTED
# endif
# if defined(PNG_READ_SUPPORTED) && defined(PNG_WRITE_SUPPORTED)
- else if (!(png_ptr->mode & PNG_IS_READ_STRUCT))
+ else if ((png_ptr->mode & PNG_IS_READ_STRUCT) == 0)
# endif
# ifdef PNG_WRITE_SUPPORTED
char msg[fixed_message_ln+PNG_MAX_ERROR_TEXT];
memcpy(msg, fixed_message, fixed_message_ln);
iin = 0;
- if (name != NULL) while (iin < (PNG_MAX_ERROR_TEXT-1) && name[iin] != 0)
- {
- msg[fixed_message_ln + iin] = name[iin];
- ++iin;
- }
+ if (name != NULL)
+ while (iin < (PNG_MAX_ERROR_TEXT-1) && name[iin] != 0)
+ {
+ msg[fixed_message_ln + iin] = name[iin];
+ ++iin;
+ }
msg[fixed_message_ln + iin] = 0;
png_error(png_ptr, msg);
}
png_longjmp,(png_const_structrp png_ptr, int val),PNG_NORETURN)
{
#ifdef PNG_SETJMP_SUPPORTED
- if (png_ptr && png_ptr->longjmp_fn && png_ptr->jmp_buf_ptr)
+ if (png_ptr != NULL && png_ptr->longjmp_fn != NULL &&
+ png_ptr->jmp_buf_ptr != NULL)
png_ptr->longjmp_fn(*png_ptr->jmp_buf_ptr, val);
#else
PNG_UNUSED(png_ptr)
/* If control reaches this point, png_longjmp() must not return. The only
* choice is to terminate the whole process (or maybe the thread); to do
- * this the ANSI-C abort() function is used unless a different method is
+ * this the ANSI-C abort() function is used unless a different method is
* implemented by overriding the default configuration setting for
* PNG_ABORT().
*/
#endif
PNG_UNUSED(png_ptr) /* Make compiler happy */
}
-#endif /* PNG_WARNINGS_SUPPORTED */
+#endif /* WARNINGS */
/* This function is called when the application wants to use another method
* of handling errors and warnings. Note that the error function MUST NOT
return result;
}
-#endif /* SIMPLIFIED READ/WRITE */
-#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */
+#endif /* SIMPLIFIED READ || SIMPLIFIED_WRITE */
+#endif /* READ || WRITE */
/* pngget.c - retrieval of values from info struct
*
- * Last changed in libpng 1.6.11 [June 5, 2014]
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.17 [March 26, 2015]
+ * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
info_ptr)
{
#ifdef PNG_pHYs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs))
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_pHYs) != 0)
{
png_debug1(1, "in %s retrieval function",
"png_get_x_pixels_per_meter");
info_ptr)
{
#ifdef PNG_pHYs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs))
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_pHYs) != 0)
{
png_debug1(1, "in %s retrieval function",
"png_get_y_pixels_per_meter");
png_get_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
#ifdef PNG_pHYs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs))
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_pHYs) != 0)
{
png_debug1(1, "in %s retrieval function", "png_get_pixels_per_meter");
info_ptr)
{
#ifdef PNG_READ_pHYs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs))
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_pHYs) != 0)
{
png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio");
png_const_inforp info_ptr)
{
#ifdef PNG_READ_pHYs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)
- && info_ptr->x_pixels_per_unit > 0 && info_ptr->y_pixels_per_unit > 0
- && info_ptr->x_pixels_per_unit <= PNG_UINT_31_MAX
- && info_ptr->y_pixels_per_unit <= PNG_UINT_31_MAX)
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_pHYs) != 0 &&
+ info_ptr->x_pixels_per_unit > 0 && info_ptr->y_pixels_per_unit > 0 &&
+ info_ptr->x_pixels_per_unit <= PNG_UINT_31_MAX &&
+ info_ptr->y_pixels_per_unit <= PNG_UINT_31_MAX)
{
png_fixed_point res;
* range of 0..2^31-1; otherwise the cast might overflow.
*/
if (png_muldiv(&res, (png_int_32)info_ptr->y_pixels_per_unit, PNG_FP_1,
- (png_int_32)info_ptr->x_pixels_per_unit))
+ (png_int_32)info_ptr->x_pixels_per_unit) != 0)
return res;
}
#else
png_get_x_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
#ifdef PNG_oFFs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs))
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_oFFs) != 0)
{
png_debug1(1, "in %s retrieval function", "png_get_x_offset_microns");
png_get_y_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
#ifdef PNG_oFFs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs))
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_oFFs) != 0)
{
png_debug1(1, "in %s retrieval function", "png_get_y_offset_microns");
png_get_x_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
#ifdef PNG_oFFs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs))
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_oFFs) != 0)
{
png_debug1(1, "in %s retrieval function", "png_get_x_offset_pixels");
png_get_y_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr)
{
#ifdef PNG_oFFs_SUPPORTED
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs))
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_oFFs) != 0)
{
png_debug1(1, "in %s retrieval function", "png_get_y_offset_pixels");
*/
png_fixed_point result;
if (ppm <= PNG_UINT_31_MAX && png_muldiv(&result, (png_int_32)ppm, 127,
- 5000))
+ 5000) != 0)
return result;
/* Overflow. */
{
png_uint_32 retval = 0;
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs))
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_pHYs) != 0)
{
png_debug1(1, "in %s retrieval function", "pHYs");
return (retval);
}
-#endif /* PNG_pHYs_SUPPORTED */
-#endif /* PNG_INCH_CONVERSIONS_SUPPORTED */
+#endif /* pHYs */
+#endif /* INCH_CONVERSIONS */
/* png_get_channels really belongs in here, too, but it's been around longer */
-#endif /* PNG_EASY_ACCESS_SUPPORTED */
+#endif /* EASY_ACCESS */
png_byte PNGAPI
png_get_bKGD(png_const_structrp png_ptr, png_inforp info_ptr,
png_color_16p *background)
{
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD)
- && background != NULL)
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_bKGD) != 0 &&
+ background != NULL)
{
png_debug1(1, "in %s retrieval function", "bKGD");
* consistent.
*/
if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS))
+ (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{
png_debug1(1, "in %s retrieval function", "cHRM");
double *blue_Z)
{
if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS))
+ (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{
png_debug1(1, "in %s retrieval function", "cHRM_XYZ(float)");
png_fixed_point *int_blue_Z)
{
if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS))
+ (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{
png_debug1(1, "in %s retrieval function", "cHRM_XYZ");
png_debug1(1, "in %s retrieval function", "cHRM");
if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS))
+ (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0)
{
if (white_x != NULL)
*white_x = info_ptr->colorspace.end_points_xy.whitex;
png_debug1(1, "in %s retrieval function", "gAMA");
if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) &&
+ (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) != 0 &&
file_gamma != NULL)
{
*file_gamma = info_ptr->colorspace.gamma;
png_debug1(1, "in %s retrieval function", "gAMA(float)");
if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) &&
+ (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) != 0 &&
file_gamma != NULL)
{
*file_gamma = png_float(png_ptr, info_ptr->colorspace.gamma,
{
png_debug1(1, "in %s retrieval function", "sRGB");
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sRGB)
- && file_srgb_intent != NULL)
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_sRGB) != 0 && file_srgb_intent != NULL)
{
*file_srgb_intent = info_ptr->colorspace.rendering_intent;
return (PNG_INFO_sRGB);
{
png_debug1(1, "in %s retrieval function", "iCCP");
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_iCCP)
- && name != NULL && compression_type != NULL && profile != NULL &&
- proflen != NULL)
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_iCCP) != 0 &&
+ name != NULL && compression_type != NULL && profile != NULL &&
+ proflen != NULL)
{
*name = info_ptr->iccp_name;
*profile = info_ptr->iccp_profile;
{
png_debug1(1, "in %s retrieval function", "hIST");
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST)
- && hist != NULL)
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_hIST) != 0 && hist != NULL)
{
*hist = info_ptr->hist;
return (PNG_INFO_hIST);
{
png_debug1(1, "in %s retrieval function", "IHDR");
- if (png_ptr == NULL || info_ptr == NULL || width == NULL ||
- height == NULL || bit_depth == NULL || color_type == NULL)
+ if (png_ptr == NULL || info_ptr == NULL)
return (0);
- *width = info_ptr->width;
- *height = info_ptr->height;
- *bit_depth = info_ptr->bit_depth;
- *color_type = info_ptr->color_type;
+ if (width != NULL)
+ *width = info_ptr->width;
+
+ if (height != NULL)
+ *height = info_ptr->height;
+
+ if (bit_depth != NULL)
+ *bit_depth = info_ptr->bit_depth;
+
+ if (color_type != NULL)
+ *color_type = info_ptr->color_type;
if (compression_type != NULL)
*compression_type = info_ptr->compression_type;
{
png_debug1(1, "in %s retrieval function", "oFFs");
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs)
- && offset_x != NULL && offset_y != NULL && unit_type != NULL)
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_oFFs) != 0 &&
+ offset_x != NULL && offset_y != NULL && unit_type != NULL)
{
*offset_x = info_ptr->x_offset;
*offset_y = info_ptr->y_offset;
{
png_debug1(1, "in %s retrieval function", "pCAL");
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pCAL)
- && purpose != NULL && X0 != NULL && X1 != NULL && type != NULL &&
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_pCAL) != 0 &&
+ purpose != NULL && X0 != NULL && X1 != NULL && type != NULL &&
nparams != NULL && units != NULL && params != NULL)
{
*purpose = info_ptr->pcal_purpose;
int *unit, png_fixed_point *width, png_fixed_point *height)
{
if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_sCAL))
+ (info_ptr->valid & PNG_INFO_sCAL) != 0)
{
*unit = info_ptr->scal_unit;
/*TODO: make this work without FP support; the API is currently eliminated
int *unit, double *width, double *height)
{
if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_sCAL))
+ (info_ptr->valid & PNG_INFO_sCAL) != 0)
{
*unit = info_ptr->scal_unit;
*width = atof(info_ptr->scal_s_width);
int *unit, png_charpp width, png_charpp height)
{
if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_sCAL))
+ (info_ptr->valid & PNG_INFO_sCAL) != 0)
{
*unit = info_ptr->scal_unit;
*width = info_ptr->scal_s_width;
png_debug1(1, "in %s retrieval function", "pHYs");
if (png_ptr != NULL && info_ptr != NULL &&
- (info_ptr->valid & PNG_INFO_pHYs))
+ (info_ptr->valid & PNG_INFO_pHYs) != 0)
{
if (res_x != NULL)
{
{
png_debug1(1, "in %s retrieval function", "PLTE");
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_PLTE)
- && palette != NULL)
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_PLTE) != 0 && palette != NULL)
{
*palette = info_ptr->palette;
*num_palette = info_ptr->num_palette;
{
png_debug1(1, "in %s retrieval function", "sBIT");
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT)
- && sig_bit != NULL)
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_sBIT) != 0 && sig_bit != NULL)
{
*sig_bit = &(info_ptr->sig_bit);
return (PNG_INFO_sBIT);
{
png_debug1(1, "in %s retrieval function", "tIME");
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tIME)
- && mod_time != NULL)
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_tIME) != 0 && mod_time != NULL)
{
*mod_time = &(info_ptr->mod_time);
return (PNG_INFO_tIME);
png_bytep *trans_alpha, int *num_trans, png_color_16p *trans_color)
{
png_uint_32 retval = 0;
- if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS))
+ if (png_ptr != NULL && info_ptr != NULL &&
+ (info_ptr->valid & PNG_INFO_tRNS) != 0)
{
png_debug1(1, "in %s retrieval function", "tRNS");
if (png_ptr == NULL)
return 0;
-# ifdef PNG_WRITE_SUPPORTED
- if (png_ptr->mode & PNG_IS_READ_STRUCT)
-# endif
+#ifdef PNG_WRITE_SUPPORTED
+ if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0)
+#endif
{
-# ifdef PNG_SEQUENTIAL_READ_SUPPORTED
+#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
return png_ptr->IDAT_read_size;
-# else
+#else
return PNG_IDAT_READ_SIZE;
-# endif
+#endif
}
-# ifdef PNG_WRITE_SUPPORTED
+#ifdef PNG_WRITE_SUPPORTED
else
return png_ptr->zbuffer_size;
-# endif
+#endif
}
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
{
return (png_ptr ? png_ptr->user_chunk_malloc_max : 0);
}
-#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */
+#endif /* SET_USER_LIMITS */
/* These functions were added to libpng 1.4.0 */
#ifdef PNG_IO_STATE_SUPPORTED
{
return png_ptr->chunk_name;
}
-#endif /* ?PNG_IO_STATE_SUPPORTED */
+#endif /* IO_STATE */
#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
# ifdef PNG_GET_PALETTE_MAX_SUPPORTED
# endif
#endif
-#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */
+#endif /* READ || WRITE */
/* pnginfo.h - header file for PNG reference library
*
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.1 [March 28, 2013]
+ * Copyright (c) 1998-2002,2004,2006-2013 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
- * Last changed in libpng 1.6.1 [March 28, 2013]
- *
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
int num_text; /* number of comments read or comments to write */
int max_text; /* current size of text array */
png_textp text; /* array of comments read or comments to write */
-#endif /* PNG_TEXT_SUPPORTED */
+#endif /* TEXT */
#ifdef PNG_tIME_SUPPORTED
/* The tIME chunk holds the last time the displayed image data was
/* Storage for unknown chunks that the library doesn't recognize. */
png_unknown_chunkp unknown_chunks;
- /* The type of this field is limited by the type of
+ /* The type of this field is limited by the type of
* png_struct::user_chunk_cache_max, else overflow can occur.
*/
int unknown_chunks_num;
/* pngmem.c - stub functions for memory allocation
*
- * Last changed in libpng 1.6.8 [December 19, 2013]
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.15 [November 20, 2014]
+ * Copyright (c) 1998-2002,2004,2006-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
}
/* Allocate memory. For reasonable files, size should never exceed
- * 64K. However, zlib may allocate more then 64K if you don't tell
+ * 64K. However, zlib may allocate more than 64K if you don't tell
* it not to. See zconf.h and png.h for more information. zlib does
* need to allocate exactly 64K, so whatever you call here must
* have the ability to do that.
PNG_UNUSED(png_ptr)
#endif
+ /* Some compilers complain that this is always true. However, it
+ * can be false when integer overflow happens.
+ */
if (size > 0 && size <= PNG_SIZE_MAX
# ifdef PNG_MAX_MALLOC_64K
&& size <= 65536U
return ret;
}
-#endif /* PNG_USER_MEM_SUPPORTED */
+#endif /* USER_MEM */
/* This function was added at libpng version 1.2.3. The png_malloc_warn()
* function will issue a png_warning and return NULL instead of issuing a
{
if (png_ptr == NULL || ptr == NULL)
return;
-#endif /* PNG_USER_MEM_SUPPORTED */
+#endif /* USER_MEM */
free(ptr);
}
return png_ptr->mem_ptr;
}
-#endif /* PNG_USER_MEM_SUPPORTED */
-#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */
+#endif /* USER_MEM */
+#endif /* READ || WRITE */
/* pngpread.c - read a png file in push mode
*
- * Last changed in libpng 1.6.11 [June 5, 2014]
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.18 [July 23, 2015]
+ * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
#define PNG_READ_SIG_MODE 0
#define PNG_READ_CHUNK_MODE 1
#define PNG_READ_IDAT_MODE 2
-#define PNG_SKIP_MODE 3
#define PNG_READ_tEXt_MODE 4
#define PNG_READ_zTXt_MODE 5
#define PNG_READ_DONE_MODE 6
#define PNG_READ_iTXt_MODE 7
#define PNG_ERROR_MODE 8
+#define PNG_PUSH_SAVE_BUFFER_IF_FULL \
+if (png_ptr->push_length + 4 > png_ptr->buffer_size) \
+ { png_push_save_buffer(png_ptr); return; }
+#define PNG_PUSH_SAVE_BUFFER_IF_LT(N) \
+if (png_ptr->buffer_size < N) \
+ { png_push_save_buffer(png_ptr); return; }
+
void PNGAPI
png_process_data(png_structrp png_ptr, png_inforp info_ptr,
png_bytep buffer, png_size_t buffer_size)
{
if (png_ptr != NULL)
{
- /* It's easiest for the caller if we do the save, then the caller doesn't
+ /* It's easiest for the caller if we do the save; then the caller doesn't
* have to supply the same data again:
*/
if (save != 0)
png_uint_32 PNGAPI
png_process_data_skip(png_structrp png_ptr)
{
- png_uint_32 remaining = 0;
-
- if (png_ptr != NULL && png_ptr->process_mode == PNG_SKIP_MODE &&
- png_ptr->skip_length > 0)
- {
- /* At the end of png_process_data the buffer size must be 0 (see the loop
- * above) so we can detect a broken call here:
- */
- if (png_ptr->buffer_size != 0)
- png_error(png_ptr,
- "png_process_data_skip called inside png_process_data");
-
- /* If is impossible for there to be a saved buffer at this point -
- * otherwise we could not be in SKIP mode. This will also happen if
- * png_process_skip is called inside png_process_data (but only very
- * rarely.)
- */
- if (png_ptr->save_buffer_size != 0)
- png_error(png_ptr, "png_process_data_skip called with saved data");
-
- remaining = png_ptr->skip_length;
- png_ptr->skip_length = 0;
- png_ptr->process_mode = PNG_READ_CHUNK_MODE;
- }
-
- return remaining;
+ /* TODO: Deprecate and remove this API.
+ * Somewhere the implementation of this seems to have been lost,
+ * or abandoned. It was only to support some internal back-door access
+ * to png_struct) in libpng-1.4.x.
+ */
+ png_app_warning(png_ptr,
+"png_process_data_skip is not implemented in any current version of libpng");
+ return 0;
}
/* What we do with the incoming data depends on what we were previously
break;
}
- case PNG_SKIP_MODE:
- {
- png_push_crc_finish(png_ptr);
- break;
- }
-
default:
{
png_ptr->buffer_size = 0;
void /* PRIVATE */
png_push_read_sig(png_structrp png_ptr, png_inforp info_ptr)
{
- png_size_t num_checked = png_ptr->sig_bytes, /* SAFE, does not exceed 8 */
- num_to_check = 8 - num_checked;
+ png_size_t num_checked = png_ptr->sig_bytes, /* SAFE, does not exceed 8 */
+ num_to_check = 8 - num_checked;
if (png_ptr->buffer_size < num_to_check)
{
int keep; /* unknown handling method */
#endif
- /* First we make sure we have enough data for the 4 byte chunk name
- * and the 4 byte chunk length before proceeding with decoding the
+ /* First we make sure we have enough data for the 4-byte chunk name
+ * and the 4-byte chunk length before proceeding with decoding the
* chunk data. To fully decode each of these chunks, we also make
- * sure we have enough data in the buffer for the 4 byte CRC at the
+ * sure we have enough data in the buffer for the 4-byte CRC at the
* end of every chunk (except IDAT, which is handled separately).
*/
- if (!(png_ptr->mode & PNG_HAVE_CHUNK_HEADER))
+ if ((png_ptr->mode & PNG_HAVE_CHUNK_HEADER) == 0)
{
png_byte chunk_length[4];
png_byte chunk_tag[4];
- if (png_ptr->buffer_size < 8)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_LT(8)
png_push_fill_buffer(png_ptr, chunk_length, 4);
png_ptr->push_length = png_get_uint_31(png_ptr, chunk_length);
png_reset_crc(png_ptr);
if (chunk_name == png_IDAT)
{
- if (png_ptr->mode & PNG_AFTER_IDAT)
+ if ((png_ptr->mode & PNG_AFTER_IDAT) != 0)
png_ptr->mode |= PNG_HAVE_CHUNK_AFTER_IDAT;
/* If we reach an IDAT chunk, this means we have read all of the
* header chunks, and we can start reading the image (or if this
* is called after the image has been read - we have an error).
*/
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_error(png_ptr, "Missing IHDR before IDAT");
else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
- !(png_ptr->mode & PNG_HAVE_PLTE))
+ (png_ptr->mode & PNG_HAVE_PLTE) == 0)
png_error(png_ptr, "Missing PLTE before IDAT");
png_ptr->mode |= PNG_HAVE_IDAT;
png_ptr->process_mode = PNG_READ_IDAT_MODE;
- if (!(png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT))
+ if ((png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT) == 0)
if (png_ptr->push_length == 0)
return;
- if (png_ptr->mode & PNG_AFTER_IDAT)
+ if ((png_ptr->mode & PNG_AFTER_IDAT) != 0)
png_benign_error(png_ptr, "Too many IDATs found");
}
if (png_ptr->push_length != 13)
png_error(png_ptr, "Invalid IHDR length");
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_IHDR(png_ptr, info_ptr, png_ptr->push_length);
}
else if (chunk_name == png_IEND)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_IEND(png_ptr, info_ptr, png_ptr->push_length);
png_ptr->process_mode = PNG_READ_DONE_MODE;
#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
else if ((keep = png_chunk_unknown_handling(png_ptr, chunk_name)) != 0)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length, keep);
if (chunk_name == png_PLTE)
else if (chunk_name == png_PLTE)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_PLTE(png_ptr, info_ptr, png_ptr->push_length);
}
#ifdef PNG_READ_gAMA_SUPPORTED
else if (png_ptr->chunk_name == png_gAMA)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_gAMA(png_ptr, info_ptr, png_ptr->push_length);
}
#ifdef PNG_READ_sBIT_SUPPORTED
else if (png_ptr->chunk_name == png_sBIT)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_sBIT(png_ptr, info_ptr, png_ptr->push_length);
}
#ifdef PNG_READ_cHRM_SUPPORTED
else if (png_ptr->chunk_name == png_cHRM)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_cHRM(png_ptr, info_ptr, png_ptr->push_length);
}
#ifdef PNG_READ_sRGB_SUPPORTED
else if (chunk_name == png_sRGB)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_sRGB(png_ptr, info_ptr, png_ptr->push_length);
}
#ifdef PNG_READ_iCCP_SUPPORTED
else if (png_ptr->chunk_name == png_iCCP)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_iCCP(png_ptr, info_ptr, png_ptr->push_length);
}
#ifdef PNG_READ_sPLT_SUPPORTED
else if (chunk_name == png_sPLT)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_sPLT(png_ptr, info_ptr, png_ptr->push_length);
}
#ifdef PNG_READ_tRNS_SUPPORTED
else if (chunk_name == png_tRNS)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_tRNS(png_ptr, info_ptr, png_ptr->push_length);
}
#ifdef PNG_READ_bKGD_SUPPORTED
else if (chunk_name == png_bKGD)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_bKGD(png_ptr, info_ptr, png_ptr->push_length);
}
#ifdef PNG_READ_hIST_SUPPORTED
else if (chunk_name == png_hIST)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_hIST(png_ptr, info_ptr, png_ptr->push_length);
}
#ifdef PNG_READ_pHYs_SUPPORTED
else if (chunk_name == png_pHYs)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_pHYs(png_ptr, info_ptr, png_ptr->push_length);
}
#ifdef PNG_READ_oFFs_SUPPORTED
else if (chunk_name == png_oFFs)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_oFFs(png_ptr, info_ptr, png_ptr->push_length);
}
#endif
#ifdef PNG_READ_pCAL_SUPPORTED
else if (chunk_name == png_pCAL)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_pCAL(png_ptr, info_ptr, png_ptr->push_length);
}
#ifdef PNG_READ_sCAL_SUPPORTED
else if (chunk_name == png_sCAL)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_sCAL(png_ptr, info_ptr, png_ptr->push_length);
}
#ifdef PNG_READ_tIME_SUPPORTED
else if (chunk_name == png_tIME)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_tIME(png_ptr, info_ptr, png_ptr->push_length);
}
#ifdef PNG_READ_tEXt_SUPPORTED
else if (chunk_name == png_tEXt)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_tEXt(png_ptr, info_ptr, png_ptr->push_length);
}
#ifdef PNG_READ_zTXt_SUPPORTED
else if (chunk_name == png_zTXt)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_zTXt(png_ptr, info_ptr, png_ptr->push_length);
}
#ifdef PNG_READ_iTXt_SUPPORTED
else if (chunk_name == png_iTXt)
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_iTXt(png_ptr, info_ptr, png_ptr->push_length);
}
#endif
else
{
- if (png_ptr->push_length + 4 > png_ptr->buffer_size)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
+ PNG_PUSH_SAVE_BUFFER_IF_FULL
png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length,
PNG_HANDLE_CHUNK_AS_DEFAULT);
}
png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER;
}
-void /* PRIVATE */
-png_push_crc_skip(png_structrp png_ptr, png_uint_32 skip)
-{
- png_ptr->process_mode = PNG_SKIP_MODE;
- png_ptr->skip_length = skip;
-}
-
-void /* PRIVATE */
-png_push_crc_finish(png_structrp png_ptr)
-{
- if (png_ptr->skip_length && png_ptr->save_buffer_size)
- {
- png_size_t save_size = png_ptr->save_buffer_size;
- png_uint_32 skip_length = png_ptr->skip_length;
-
- /* We want the smaller of 'skip_length' and 'save_buffer_size', but
- * they are of different types and we don't know which variable has the
- * fewest bits. Carefully select the smaller and cast it to the type of
- * the larger - this cannot overflow. Do not cast in the following test
- * - it will break on either 16 or 64 bit platforms.
- */
- if (skip_length < save_size)
- save_size = (png_size_t)skip_length;
-
- else
- skip_length = (png_uint_32)save_size;
-
- png_calculate_crc(png_ptr, png_ptr->save_buffer_ptr, save_size);
-
- png_ptr->skip_length -= skip_length;
- png_ptr->buffer_size -= save_size;
- png_ptr->save_buffer_size -= save_size;
- png_ptr->save_buffer_ptr += save_size;
- }
- if (png_ptr->skip_length && png_ptr->current_buffer_size)
- {
- png_size_t save_size = png_ptr->current_buffer_size;
- png_uint_32 skip_length = png_ptr->skip_length;
-
- /* We want the smaller of 'skip_length' and 'current_buffer_size', here,
- * the same problem exists as above and the same solution.
- */
- if (skip_length < save_size)
- save_size = (png_size_t)skip_length;
-
- else
- skip_length = (png_uint_32)save_size;
-
- png_calculate_crc(png_ptr, png_ptr->current_buffer_ptr, save_size);
-
- png_ptr->skip_length -= skip_length;
- png_ptr->buffer_size -= save_size;
- png_ptr->current_buffer_size -= save_size;
- png_ptr->current_buffer_ptr += save_size;
- }
- if (!png_ptr->skip_length)
- {
- if (png_ptr->buffer_size < 4)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
- png_crc_finish(png_ptr, 0);
- png_ptr->process_mode = PNG_READ_CHUNK_MODE;
- }
-}
-
void PNGCBAPI
png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, png_size_t length)
{
return;
ptr = buffer;
- if (png_ptr->save_buffer_size)
+ if (png_ptr->save_buffer_size != 0)
{
png_size_t save_size;
png_ptr->save_buffer_size -= save_size;
png_ptr->save_buffer_ptr += save_size;
}
- if (length && png_ptr->current_buffer_size)
+ if (length != 0 && png_ptr->current_buffer_size != 0)
{
png_size_t save_size;
void /* PRIVATE */
png_push_save_buffer(png_structrp png_ptr)
{
- if (png_ptr->save_buffer_size)
+ if (png_ptr->save_buffer_size != 0)
{
if (png_ptr->save_buffer_ptr != png_ptr->save_buffer)
{
void /* PRIVATE */
png_push_read_IDAT(png_structrp png_ptr)
{
- if (!(png_ptr->mode & PNG_HAVE_CHUNK_HEADER))
+ if ((png_ptr->mode & PNG_HAVE_CHUNK_HEADER) == 0)
{
png_byte chunk_length[4];
png_byte chunk_tag[4];
/* TODO: this code can be commoned up with the same code in push_read */
- if (png_ptr->buffer_size < 8)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
-
+ PNG_PUSH_SAVE_BUFFER_IF_LT(8)
png_push_fill_buffer(png_ptr, chunk_length, 4);
png_ptr->push_length = png_get_uint_31(png_ptr, chunk_length);
png_reset_crc(png_ptr);
{
png_ptr->process_mode = PNG_READ_CHUNK_MODE;
- if (!(png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED))
+ if ((png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED) == 0)
png_error(png_ptr, "Not enough compressed data");
return;
png_ptr->idat_size = png_ptr->push_length;
}
- if (png_ptr->idat_size && png_ptr->save_buffer_size)
+ if (png_ptr->idat_size != 0 && png_ptr->save_buffer_size != 0)
{
png_size_t save_size = png_ptr->save_buffer_size;
png_uint_32 idat_size = png_ptr->idat_size;
* are of different types and we don't know which variable has the fewest
* bits. Carefully select the smaller and cast it to the type of the
* larger - this cannot overflow. Do not cast in the following test - it
- * will break on either 16 or 64 bit platforms.
+ * will break on either 16-bit or 64-bit platforms.
*/
if (idat_size < save_size)
save_size = (png_size_t)idat_size;
png_ptr->save_buffer_ptr += save_size;
}
- if (png_ptr->idat_size && png_ptr->current_buffer_size)
+ if (png_ptr->idat_size != 0 && png_ptr->current_buffer_size != 0)
{
png_size_t save_size = png_ptr->current_buffer_size;
png_uint_32 idat_size = png_ptr->idat_size;
png_ptr->current_buffer_size -= save_size;
png_ptr->current_buffer_ptr += save_size;
}
- if (!png_ptr->idat_size)
- {
- if (png_ptr->buffer_size < 4)
- {
- png_push_save_buffer(png_ptr);
- return;
- }
+ if (png_ptr->idat_size == 0)
+ {
+ PNG_PUSH_SAVE_BUFFER_IF_LT(4)
png_crc_finish(png_ptr, 0);
png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER;
png_ptr->mode |= PNG_AFTER_IDAT;
* or the stream marked as finished.
*/
while (png_ptr->zstream.avail_in > 0 &&
- !(png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED))
+ (png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED) == 0)
{
int ret;
* change the current behavior (see comments in inflate.c
* for why this doesn't happen at present with zlib 1.2.5).
*/
- ret = inflate(&png_ptr->zstream, Z_SYNC_FLUSH);
+ ret = PNG_INFLATE(png_ptr, Z_SYNC_FLUSH);
/* Check for any failure before proceeding. */
if (ret != Z_OK && ret != Z_STREAM_END)
memcpy(png_ptr->prev_row, png_ptr->row_buf, row_info.rowbytes + 1);
#ifdef PNG_READ_TRANSFORMS_SUPPORTED
- if (png_ptr->transformations)
+ if (png_ptr->transformations != 0)
png_do_read_transformations(png_ptr, &row_info);
#endif
#ifdef PNG_READ_INTERLACING_SUPPORTED
/* Expand interlaced rows to full size */
- if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE))
+ if (png_ptr->interlaced != 0 &&
+ (png_ptr->transformations & PNG_INTERLACE) != 0)
{
if (png_ptr->pass < 6)
png_do_read_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass,
}
}
else
+#endif
{
png_push_have_row(png_ptr, png_ptr->row_buf + 1);
png_read_push_finish_row(png_ptr);
void /* PRIVATE */
png_read_push_finish_row(png_structrp png_ptr)
{
+#ifdef PNG_READ_INTERLACING_SUPPORTED
/* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
/* Start of interlace block */
if (png_ptr->row_number < png_ptr->num_rows)
return;
- if (png_ptr->interlaced)
+#ifdef PNG_READ_INTERLACING_SUPPORTED
+ if (png_ptr->interlaced != 0)
{
png_ptr->row_number = 0;
memset(png_ptr->prev_row, 0, png_ptr->rowbytes + 1);
png_pass_start[png_ptr->pass]) /
png_pass_inc[png_ptr->pass];
- if (png_ptr->transformations & PNG_INTERLACE)
+ if ((png_ptr->transformations & PNG_INTERLACE) != 0)
break;
png_ptr->num_rows = (png_ptr->height +
} while (png_ptr->iwidth == 0 || png_ptr->num_rows == 0);
}
+#endif /* READ_INTERLACING */
}
void /* PRIVATE */
(int)png_ptr->pass);
}
+#ifdef PNG_READ_INTERLACING_SUPPORTED
void PNGAPI
png_progressive_combine_row(png_const_structrp png_ptr, png_bytep old_row,
png_const_bytep new_row)
if (new_row != NULL)
png_combine_row(png_ptr, old_row, 1/*blocky display*/);
}
+#endif /* READ_INTERLACING */
void PNGAPI
png_set_progressive_read_fn(png_structrp png_ptr, png_voidp progressive_ptr,
return png_ptr->io_ptr;
}
-#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
+#endif /* PROGRESSIVE_READ */
/* pngpriv.h - private declarations for use inside libpng
*
- * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.21 [January 15, 2016]
+ * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
- * Last changed in libpng 1.6.10 [March 6, 1014]]
- *
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
* to compile with an appropriate #error if ALIGNED_MEMORY has been turned
* off.
*
- * Note that gcc-4.9 defines __ARM_NEON instead of __ARM_NEON__, so we
- * check both variants.
+ * Note that gcc-4.9 defines __ARM_NEON instead of the deprecated
+ * __ARM_NEON__, so we check both variants.
+ *
+ * To disable ARM_NEON optimizations entirely, and skip compiling the
+ * associated assembler code, pass --enable-arm-neon=no to configure
+ * or put -DPNG_ARM_NEON_OPT=0 in CPPFLAGS.
*/
# if (defined(__ARM_NEON__) || defined(__ARM_NEON)) && \
defined(PNG_ALIGNED_MEMORY_SUPPORTED)
*/
# define PNG_ARM_NEON_IMPLEMENTATION 2
# endif /* __ARM_NEON__ */
-# endif /* !defined PNG_ARM_NEON_IMPLEMENTATION */
+# endif /* !PNG_ARM_NEON_IMPLEMENTATION */
# ifndef PNG_ARM_NEON_IMPLEMENTATION
/* Use the intrinsics code by default. */
* always be used to declare an extern data or function object in this file.
*/
#ifndef PNG_INTERNAL_DATA
-# define PNG_INTERNAL_DATA(type, name, array) extern type name array
+# define PNG_INTERNAL_DATA(type, name, array) PNG_LINKAGE_DATA type name array
#endif
#ifndef PNG_INTERNAL_FUNCTION
# define PNG_INTERNAL_FUNCTION(type, name, args, attributes)\
- extern PNG_FUNCTION(type, name, args, PNG_EMPTY attributes)
+ PNG_LINKAGE_FUNCTION PNG_FUNCTION(type, name, args, PNG_EMPTY attributes)
#endif
#ifndef PNG_INTERNAL_CALLBACK
# define PNG_INTERNAL_CALLBACK(type, name, args, attributes)\
- extern PNG_FUNCTION(type, (PNGCBAPI name), args, PNG_EMPTY attributes)
+ PNG_LINKAGE_CALLBACK PNG_FUNCTION(type, (PNGCBAPI name), args,\
+ PNG_EMPTY attributes)
#endif
/* If floating or fixed point APIs are disabled they may still be compiled
# define PNG_DLL_EXPORT
#endif
-/* SECURITY and SAFETY:
+/* This is a global switch to set the compilation for an installed system
+ * (a release build). It can be set for testing debug builds to ensure that
+ * they will compile when the build type is switched to RC or STABLE, the
+ * default is just to use PNG_LIBPNG_BUILD_BASE_TYPE. Set this in CPPFLAGS
+ * with either:
*
- * By default libpng is built without any internal limits on image size,
- * individual heap (png_malloc) allocations or the total amount of memory used.
- * If PNG_SAFE_LIMITS_SUPPORTED is defined, however, the limits below are used
- * (unless individually overridden). These limits are believed to be fairly
- * safe, but builders of secure systems should verify the values against the
- * real system capabilities.
- */
-#ifdef PNG_SAFE_LIMITS_SUPPORTED
- /* 'safe' limits */
-# ifndef PNG_USER_WIDTH_MAX
-# define PNG_USER_WIDTH_MAX 1000000
-# endif
-# ifndef PNG_USER_HEIGHT_MAX
-# define PNG_USER_HEIGHT_MAX 1000000
-# endif
-# ifndef PNG_USER_CHUNK_CACHE_MAX
-# define PNG_USER_CHUNK_CACHE_MAX 128
-# endif
-# ifndef PNG_USER_CHUNK_MALLOC_MAX
-# define PNG_USER_CHUNK_MALLOC_MAX 8000000
-# endif
-#else
- /* values for no limits */
-# ifndef PNG_USER_WIDTH_MAX
-# define PNG_USER_WIDTH_MAX 0x7fffffff
-# endif
-# ifndef PNG_USER_HEIGHT_MAX
-# define PNG_USER_HEIGHT_MAX 0x7fffffff
-# endif
-# ifndef PNG_USER_CHUNK_CACHE_MAX
-# define PNG_USER_CHUNK_CACHE_MAX 0
-# endif
-# ifndef PNG_USER_CHUNK_MALLOC_MAX
-# define PNG_USER_CHUNK_MALLOC_MAX 0
-# endif
+ * -DPNG_RELEASE_BUILD Turns on the release compile path
+ * -DPNG_RELEASE_BUILD=0 Turns it off
+ * or in your pngusr.h with
+ * #define PNG_RELEASE_BUILD=1 Turns on the release compile path
+ * #define PNG_RELEASE_BUILD=0 Turns it off
+ */
+#ifndef PNG_RELEASE_BUILD
+# define PNG_RELEASE_BUILD (PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC)
#endif
-/* Moved to pngpriv.h at libpng-1.5.0 */
-/* NOTE: some of these may have been used in external applications as
- * these definitions were exposed in pngconf.h prior to 1.5.
+/* SECURITY and SAFETY:
+ *
+ * libpng is built with support for internal limits on image dimensions and
+ * memory usage. These are documented in scripts/pnglibconf.dfa of the
+ * source and recorded in the machine generated header file pnglibconf.h.
*/
/* If you are running on a machine where you cannot allocate more
#define PNG_RGB_TO_GRAY_WARN 0x400000
#define PNG_RGB_TO_GRAY 0x600000 /* two bits, RGB_TO_GRAY_ERR|WARN */
#define PNG_ENCODE_ALPHA 0x800000 /* Added to libpng-1.5.4 */
-#define PNG_ADD_ALPHA 0x1000000 /* Added to libpng-1.2.7 */
-#define PNG_EXPAND_tRNS 0x2000000 /* Added to libpng-1.2.9 */
-#define PNG_SCALE_16_TO_8 0x4000000 /* Added to libpng-1.5.4 */
- /* 0x8000000 unused */
- /* 0x10000000 unused */
- /* 0x20000000 unused */
- /* 0x40000000 unused */
+#define PNG_ADD_ALPHA 0x1000000 /* Added to libpng-1.2.7 */
+#define PNG_EXPAND_tRNS 0x2000000 /* Added to libpng-1.2.9 */
+#define PNG_SCALE_16_TO_8 0x4000000 /* Added to libpng-1.5.4 */
+ /* 0x8000000 unused */
+ /* 0x10000000 unused */
+ /* 0x20000000 unused */
+ /* 0x40000000 unused */
/* Flags for png_create_struct */
#define PNG_STRUCT_PNG 0x0001
#define PNG_STRUCT_INFO 0x0002
-/* Scaling factor for filter heuristic weighting calculations */
-#define PNG_WEIGHT_FACTOR (1<<(PNG_WEIGHT_SHIFT))
-#define PNG_COST_FACTOR (1<<(PNG_COST_SHIFT))
-
/* Flags for the png_ptr->flags rather than declaring a byte for each one */
#define PNG_FLAG_ZLIB_CUSTOM_STRATEGY 0x0001
#define PNG_FLAG_ZSTREAM_INITIALIZED 0x0002 /* Added to libpng-1.6.0 */
/* The fixed point conversion performs range checking and evaluates
* its argument multiple times, so must be used with care. The
* range checking uses the PNG specification values for a signed
- * 32 bit fixed point value except that the values are deliberately
+ * 32-bit fixed point value except that the values are deliberately
* rounded-to-zero to an integral value - 21474 (21474.83 is roughly
* (2^31-1) * 100000). 's' is a string that describes the value being
* converted.
* macro will fail on top-bit-set values because of the sign extension.
*/
#define PNG_CHUNK_FROM_STRING(s)\
- PNG_U32(0xff&(s)[0], 0xff&(s)[1], 0xff&(s)[2], 0xff&(s)[3])
+ PNG_U32(0xff & (s)[0], 0xff & (s)[1], 0xff & (s)[2], 0xff & (s)[3])
/* This uses (char), not (png_byte) to avoid warnings on systems where (char) is
* signed and the argument is a (char[]) This macro will fail miserably on
* systems where (char) is more than 8 bits.
*/
#define PNG_STRING_FROM_CHUNK(s,c)\
- (void)(((char*)(s))[0]=(char)((c)>>24), ((char*)(s))[1]=(char)((c)>>16),\
- ((char*)(s))[2]=(char)((c)>>8), ((char*)(s))[3]=(char)((c)))
+ (void)(((char*)(s))[0]=(char)(((c)>>24) & 0xff), \
+ ((char*)(s))[1]=(char)(((c)>>16) & 0xff),\
+ ((char*)(s))[2]=(char)(((c)>>8) & 0xff), \
+ ((char*)(s))[3]=(char)((c & 0xff)))
/* Do the same but terminate with a null character. */
#define PNG_CSTRING_FROM_CHUNK(s,c)\
*/
#endif
-/* This is used for 16 bit gamma tables -- only the top level pointers are
+/* This is used for 16-bit gamma tables -- only the top level pointers are
* const; this could be changed:
*/
typedef const png_uint_16p * png_const_uint_16pp;
PNG_INTERNAL_DATA(const png_uint_16, png_sRGB_base, [512]);
PNG_INTERNAL_DATA(const png_byte, png_sRGB_delta, [512]);
-#define PNG_sRGB_FROM_LINEAR(linear) ((png_byte)((png_sRGB_base[(linear)>>15] +\
- ((((linear)&0x7fff)*png_sRGB_delta[(linear)>>15])>>12)) >> 8))
+#define PNG_sRGB_FROM_LINEAR(linear) \
+ ((png_byte)(0xff & ((png_sRGB_base[(linear)>>15] \
+ + ((((linear) & 0x7fff)*png_sRGB_delta[(linear)>>15])>>12)) >> 8)))
/* Given a value 'linear' in the range 0..255*65535 calculate the 8-bit sRGB
* encoded value with maximum error 0.646365. Note that the input is not a
* 16-bit value; it has been multiplied by 255! */
-#endif /* PNG_SIMPLIFIED_READ/WRITE */
+#endif /* SIMPLIFIED_READ/WRITE */
/* Inhibit C++ name-mangling for libpng functions but not for system calls. */
#if defined(PNG_TEXT_SUPPORTED) || defined(PNG_sPLT_SUPPORTED) ||\
defined(PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED)
/* Internal array allocator, outputs no error or warning messages on failure,
- * just returns NULL.
+ * just returns NULL.
*/
PNG_INTERNAL_FUNCTION(png_voidp,png_malloc_array,(png_const_structrp png_ptr,
int nelements, size_t element_size),PNG_ALLOCATED);
#ifdef PNG_WRITE_zTXt_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_write_zTXt,(png_structrp png_ptr, png_const_charp
- key, png_const_charp text, png_size_t text_len, int compression),PNG_EMPTY);
+ key, png_const_charp text, int compression),PNG_EMPTY);
#endif
#ifdef PNG_WRITE_iTXt_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_read_finish_row,(png_structrp png_ptr),
PNG_EMPTY);
/* Finish a row while reading, dealing with interlacing passes, etc. */
-#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */
+#endif /* SEQUENTIAL_READ */
/* Initialize the row buffers, etc. */
PNG_INTERNAL_FUNCTION(void,png_read_start_row,(png_structrp png_ptr),PNG_EMPTY);
+#if PNG_ZLIB_VERNUM >= 0x1240
+PNG_INTERNAL_FUNCTION(int,png_zlib_inflate,(png_structrp png_ptr, int flush),
+ PNG_EMPTY);
+# define PNG_INFLATE(pp, flush) png_zlib_inflate(pp, flush)
+#else /* Zlib < 1.2.4 */
+# define PNG_INFLATE(pp, flush) inflate(&(pp)->zstream, flush)
+#endif /* Zlib < 1.2.4 */
+
#ifdef PNG_READ_TRANSFORMS_SUPPORTED
/* Optional call to update the users info structure */
PNG_INTERNAL_FUNCTION(void,png_read_transform_info,(png_structrp png_ptr,
#ifdef PNG_READ_iCCP_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_handle_iCCP,(png_structrp png_ptr,
png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif /* PNG_READ_iCCP_SUPPORTED */
+#endif /* READ_iCCP */
#ifdef PNG_READ_iTXt_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_handle_iTXt,(png_structrp png_ptr,
#ifdef PNG_READ_sPLT_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_handle_sPLT,(png_structrp png_ptr,
png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
-#endif /* PNG_READ_sPLT_SUPPORTED */
+#endif /* READ_sPLT */
#ifdef PNG_READ_sRGB_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_handle_sRGB,(png_structrp png_ptr,
PNG_INTERNAL_FUNCTION(void,png_push_read_sig,(png_structrp png_ptr,
png_inforp info_ptr),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_check_crc,(png_structrp png_ptr),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_push_crc_skip,(png_structrp png_ptr,
- png_uint_32 length),PNG_EMPTY);
-PNG_INTERNAL_FUNCTION(void,png_push_crc_finish,(png_structrp png_ptr),
- PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_save_buffer,(png_structrp png_ptr),
PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_restore_buffer,(png_structrp png_ptr,
png_inforp info_ptr),PNG_EMPTY);
# endif
-#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
+#endif /* PROGRESSIVE_READ */
/* Added at libpng version 1.6.0 */
#ifdef PNG_GAMMA_SUPPORTED
(png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
#endif
+PNG_INTERNAL_FUNCTION(png_uint_32, png_check_keyword, (png_structrp png_ptr,
+ png_const_charp key, png_bytep new_key), PNG_EMPTY);
+
/* Maintainer: Put new private prototypes here ^ */
#include "pngdebug.h"
/* pngread.c - read a PNG file
*
- * Last changed in libpng 1.6.11 [June 5, 2014]
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.17 [March 26, 2015]
+ * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
{
png_structp png_ptr = png_create_png_struct(user_png_ver, error_ptr,
error_fn, warn_fn, mem_ptr, malloc_fn, free_fn);
-#endif /* PNG_USER_MEM_SUPPORTED */
+#endif /* USER_MEM */
if (png_ptr != NULL)
{
/* In stable builds only warn if an application error can be completely
* handled.
*/
-# if PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC
+# if PNG_RELEASE_BUILD
png_ptr->flags |= PNG_FLAG_APP_WARNINGS_WARN;
# endif
# endif
*/
if (chunk_name == png_IDAT)
{
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "Missing IHDR before IDAT");
else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
- !(png_ptr->mode & PNG_HAVE_PLTE))
+ (png_ptr->mode & PNG_HAVE_PLTE) == 0)
png_chunk_error(png_ptr, "Missing PLTE before IDAT");
- else if (png_ptr->mode & PNG_AFTER_IDAT)
+ else if ((png_ptr->mode & PNG_AFTER_IDAT) != 0)
png_chunk_benign_error(png_ptr, "Too many IDATs found");
png_ptr->mode |= PNG_HAVE_IDAT;
}
- else if (png_ptr->mode & PNG_HAVE_IDAT)
+ else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
png_ptr->mode |= PNG_AFTER_IDAT;
/* This should be a binary subdivision search or a hash for
PNG_HANDLE_CHUNK_AS_DEFAULT);
}
}
-#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */
+#endif /* SEQUENTIAL_READ */
/* Optional call to update the users info_ptr structure */
void PNGAPI
"png_start_read_image/png_read_update_info: duplicate call");
}
}
-#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */
+#endif /* SEQUENTIAL_READ */
#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
#ifdef PNG_MNG_FEATURES_SUPPORTED
png_debug(1, "in png_do_read_intrapixel");
if (
- (row_info->color_type & PNG_COLOR_MASK_COLOR))
+ (row_info->color_type & PNG_COLOR_MASK_COLOR) != 0)
{
int bytes_per_pixel;
png_uint_32 row_width = row_info->width;
}
}
}
-#endif /* PNG_MNG_FEATURES_SUPPORTED */
+#endif /* MNG_FEATURES */
void PNGAPI
png_read_row(png_structrp png_ptr, png_bytep row, png_bytep dsp_row)
/* png_read_start_row sets the information (in particular iwidth) for this
* interlace pass.
*/
- if (!(png_ptr->flags & PNG_FLAG_ROW_INIT))
+ if ((png_ptr->flags & PNG_FLAG_ROW_INIT) == 0)
png_read_start_row(png_ptr);
/* 1.5.6: row_info moved out of png_struct to a local here. */
row_info.pixel_depth = png_ptr->pixel_depth;
row_info.rowbytes = PNG_ROWBYTES(row_info.pixel_depth, row_info.width);
+#ifdef PNG_WARNINGS_SUPPORTED
if (png_ptr->row_number == 0 && png_ptr->pass == 0)
{
/* Check for transforms that have been set but were defined out */
#if defined(PNG_WRITE_INVERT_SUPPORTED) && !defined(PNG_READ_INVERT_SUPPORTED)
- if (png_ptr->transformations & PNG_INVERT_MONO)
+ if ((png_ptr->transformations & PNG_INVERT_MONO) != 0)
png_warning(png_ptr, "PNG_READ_INVERT_SUPPORTED is not defined");
#endif
#if defined(PNG_WRITE_FILLER_SUPPORTED) && !defined(PNG_READ_FILLER_SUPPORTED)
- if (png_ptr->transformations & PNG_FILLER)
+ if ((png_ptr->transformations & PNG_FILLER) != 0)
png_warning(png_ptr, "PNG_READ_FILLER_SUPPORTED is not defined");
#endif
#if defined(PNG_WRITE_PACKSWAP_SUPPORTED) && \
!defined(PNG_READ_PACKSWAP_SUPPORTED)
- if (png_ptr->transformations & PNG_PACKSWAP)
+ if ((png_ptr->transformations & PNG_PACKSWAP) != 0)
png_warning(png_ptr, "PNG_READ_PACKSWAP_SUPPORTED is not defined");
#endif
#if defined(PNG_WRITE_PACK_SUPPORTED) && !defined(PNG_READ_PACK_SUPPORTED)
- if (png_ptr->transformations & PNG_PACK)
+ if ((png_ptr->transformations & PNG_PACK) != 0)
png_warning(png_ptr, "PNG_READ_PACK_SUPPORTED is not defined");
#endif
#if defined(PNG_WRITE_SHIFT_SUPPORTED) && !defined(PNG_READ_SHIFT_SUPPORTED)
- if (png_ptr->transformations & PNG_SHIFT)
+ if ((png_ptr->transformations & PNG_SHIFT) != 0)
png_warning(png_ptr, "PNG_READ_SHIFT_SUPPORTED is not defined");
#endif
#if defined(PNG_WRITE_BGR_SUPPORTED) && !defined(PNG_READ_BGR_SUPPORTED)
- if (png_ptr->transformations & PNG_BGR)
+ if ((png_ptr->transformations & PNG_BGR) != 0)
png_warning(png_ptr, "PNG_READ_BGR_SUPPORTED is not defined");
#endif
#if defined(PNG_WRITE_SWAP_SUPPORTED) && !defined(PNG_READ_SWAP_SUPPORTED)
- if (png_ptr->transformations & PNG_SWAP_BYTES)
+ if ((png_ptr->transformations & PNG_SWAP_BYTES) != 0)
png_warning(png_ptr, "PNG_READ_SWAP_SUPPORTED is not defined");
#endif
}
+#endif /* WARNINGS */
#ifdef PNG_READ_INTERLACING_SUPPORTED
/* If interlaced and we do not need a new row, combine row and return.
* untransformed) and, because of the libpng API for interlaced images, this
* means we must transform before de-interlacing.
*/
- if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE))
+ if (png_ptr->interlaced != 0 &&
+ (png_ptr->transformations & PNG_INTERLACE) != 0)
{
switch (png_ptr->pass)
{
default:
case 6:
- if (!(png_ptr->row_number & 1))
+ if ((png_ptr->row_number & 1) == 0)
{
png_read_finish_row(png_ptr);
return;
}
#endif
- if (!(png_ptr->mode & PNG_HAVE_IDAT))
+ if ((png_ptr->mode & PNG_HAVE_IDAT) == 0)
png_error(png_ptr, "Invalid attempt to read row data");
/* Fill the row with IDAT data: */
memcpy(png_ptr->prev_row, png_ptr->row_buf, row_info.rowbytes + 1);
#ifdef PNG_MNG_FEATURES_SUPPORTED
- if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) &&
+ if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) != 0 &&
(png_ptr->filter_type == PNG_INTRAPIXEL_DIFFERENCING))
{
/* Intrapixel differencing */
#ifdef PNG_READ_INTERLACING_SUPPORTED
/* Expand interlaced rows to full size */
- if (png_ptr->interlaced &&
- (png_ptr->transformations & PNG_INTERLACE))
+ if (png_ptr->interlaced != 0 &&
+ (png_ptr->transformations & PNG_INTERLACE) != 0)
{
if (png_ptr->pass < 6)
png_do_read_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass,
(*(png_ptr->read_row_fn))(png_ptr, png_ptr->row_number, png_ptr->pass);
}
-#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */
+#endif /* SEQUENTIAL_READ */
#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
/* Read one or more rows of image data. If the image is interlaced,
dp++;
}
}
-#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */
+#endif /* SEQUENTIAL_READ */
#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
/* Read the entire image. If the image has an alpha channel or a tRNS
return;
#ifdef PNG_READ_INTERLACING_SUPPORTED
- if (!(png_ptr->flags & PNG_FLAG_ROW_INIT))
+ if ((png_ptr->flags & PNG_FLAG_ROW_INIT) == 0)
{
pass = png_set_interlace_handling(png_ptr);
/* And make sure transforms are initialized. */
}
else
{
- if (png_ptr->interlaced && !(png_ptr->transformations & PNG_INTERLACE))
+ if (png_ptr->interlaced != 0 &&
+ (png_ptr->transformations & PNG_INTERLACE) == 0)
{
/* Caller called png_start_read_image or png_read_update_info without
* first turning on the PNG_INTERLACE transform. We can fix this here,
}
}
}
-#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */
+#endif /* SEQUENTIAL_READ */
#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
/* Read the end of the PNG file. Will not read past the end of the
* still be pending IDAT data and an owned zstream. Deal with this here.
*/
#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
- if (!png_chunk_unknown_handling(png_ptr, png_IDAT))
+ if (png_chunk_unknown_handling(png_ptr, png_IDAT) == 0)
#endif
png_read_finish_IDAT(png_ptr);
{
if (chunk_name == png_IDAT)
{
- if ((length > 0) || (png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT))
+ if ((length > 0) ||
+ (png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT) != 0)
png_benign_error(png_ptr, "Too many IDATs found");
}
png_handle_unknown(png_ptr, info_ptr, length, keep);
/* Zero length IDATs are legal after the last IDAT has been
* read, but not after other chunks have been read.
*/
- if ((length > 0) || (png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT))
+ if ((length > 0) || (png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT) != 0)
png_benign_error(png_ptr, "Too many IDATs found");
png_crc_finish(png_ptr, length);
else
png_handle_unknown(png_ptr, info_ptr, length,
PNG_HANDLE_CHUNK_AS_DEFAULT);
- } while (!(png_ptr->mode & PNG_HAVE_IEND));
+ } while ((png_ptr->mode & PNG_HAVE_IEND) == 0);
}
-#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */
+#endif /* SEQUENTIAL_READ */
/* Free all memory used in the read struct */
static void
#endif
png_free(png_ptr, png_ptr->big_row_buf);
+ png_ptr->big_row_buf = NULL;
png_free(png_ptr, png_ptr->big_prev_row);
+ png_ptr->big_prev_row = NULL;
png_free(png_ptr, png_ptr->read_buffer);
+ png_ptr->read_buffer = NULL;
#ifdef PNG_READ_QUANTIZE_SUPPORTED
png_free(png_ptr, png_ptr->palette_lookup);
+ png_ptr->palette_lookup = NULL;
png_free(png_ptr, png_ptr->quantize_index);
+ png_ptr->quantize_index = NULL;
#endif
- if (png_ptr->free_me & PNG_FREE_PLTE)
+ if ((png_ptr->free_me & PNG_FREE_PLTE) != 0)
+ {
png_zfree(png_ptr, png_ptr->palette);
+ png_ptr->palette = NULL;
+ }
png_ptr->free_me &= ~PNG_FREE_PLTE;
#if defined(PNG_tRNS_SUPPORTED) || \
defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
- if (png_ptr->free_me & PNG_FREE_TRNS)
+ if ((png_ptr->free_me & PNG_FREE_TRNS) != 0)
+ {
png_free(png_ptr, png_ptr->trans_alpha);
+ png_ptr->trans_alpha = NULL;
+ }
png_ptr->free_me &= ~PNG_FREE_TRNS;
#endif
#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
png_free(png_ptr, png_ptr->save_buffer);
+ png_ptr->save_buffer = NULL;
#endif
#if defined(PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED) && \
defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
png_free(png_ptr, png_ptr->unknown_chunk.data);
+ png_ptr->unknown_chunk.data = NULL;
#endif
#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
png_free(png_ptr, png_ptr->chunk_list);
+ png_ptr->chunk_list = NULL;
#endif
/* NOTE: the 'setjmp' buffer may still be allocated and the memory and error
/* Tell libpng to strip 16-bit/color files down to 8 bits per color.
*/
- if (transforms & PNG_TRANSFORM_SCALE_16)
- /* Added at libpng-1.5.4. "strip_16" produces the same result that it
- * did in earlier versions, while "scale_16" is now more accurate.
- */
+ if ((transforms & PNG_TRANSFORM_SCALE_16) != 0)
+ /* Added at libpng-1.5.4. "strip_16" produces the same result that it
+ * did in earlier versions, while "scale_16" is now more accurate.
+ */
#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
png_set_scale_16(png_ptr);
#else
* latter by doing SCALE first. This is ok and allows apps not to check for
* which is supported to get the right answer.
*/
- if (transforms & PNG_TRANSFORM_STRIP_16)
+ if ((transforms & PNG_TRANSFORM_STRIP_16) != 0)
#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
png_set_strip_16(png_ptr);
#else
/* Strip alpha bytes from the input data without combining with
* the background (not recommended).
*/
- if (transforms & PNG_TRANSFORM_STRIP_ALPHA)
+ if ((transforms & PNG_TRANSFORM_STRIP_ALPHA) != 0)
#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
png_set_strip_alpha(png_ptr);
#else
/* Extract multiple pixels with bit depths of 1, 2, or 4 from a single
* byte into separate bytes (useful for paletted and grayscale images).
*/
- if (transforms & PNG_TRANSFORM_PACKING)
+ if ((transforms & PNG_TRANSFORM_PACKING) != 0)
#ifdef PNG_READ_PACK_SUPPORTED
png_set_packing(png_ptr);
#else
/* Change the order of packed pixels to least significant bit first
* (not useful if you are using png_set_packing).
*/
- if (transforms & PNG_TRANSFORM_PACKSWAP)
+ if ((transforms & PNG_TRANSFORM_PACKSWAP) != 0)
#ifdef PNG_READ_PACKSWAP_SUPPORTED
png_set_packswap(png_ptr);
#else
* Expand paletted or RGB images with transparency to full alpha
* channels so the data will be available as RGBA quartets.
*/
- if (transforms & PNG_TRANSFORM_EXPAND)
+ if ((transforms & PNG_TRANSFORM_EXPAND) != 0)
#ifdef PNG_READ_EXPAND_SUPPORTED
png_set_expand(png_ptr);
#else
/* Invert monochrome files to have 0 as white and 1 as black
*/
- if (transforms & PNG_TRANSFORM_INVERT_MONO)
+ if ((transforms & PNG_TRANSFORM_INVERT_MONO) != 0)
#ifdef PNG_READ_INVERT_SUPPORTED
png_set_invert_mono(png_ptr);
#else
* [0,65535] to the original [0,7] or [0,31], or whatever range the
* colors were originally in:
*/
- if (transforms & PNG_TRANSFORM_SHIFT)
+ if ((transforms & PNG_TRANSFORM_SHIFT) != 0)
#ifdef PNG_READ_SHIFT_SUPPORTED
- if (info_ptr->valid & PNG_INFO_sBIT)
+ if ((info_ptr->valid & PNG_INFO_sBIT) != 0)
png_set_shift(png_ptr, &info_ptr->sig_bit);
#else
png_app_error(png_ptr, "PNG_TRANSFORM_SHIFT not supported");
#endif
/* Flip the RGB pixels to BGR (or RGBA to BGRA) */
- if (transforms & PNG_TRANSFORM_BGR)
+ if ((transforms & PNG_TRANSFORM_BGR) != 0)
#ifdef PNG_READ_BGR_SUPPORTED
png_set_bgr(png_ptr);
#else
#endif
/* Swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR) */
- if (transforms & PNG_TRANSFORM_SWAP_ALPHA)
+ if ((transforms & PNG_TRANSFORM_SWAP_ALPHA) != 0)
#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED
png_set_swap_alpha(png_ptr);
#else
#endif
/* Swap bytes of 16-bit files to least significant byte first */
- if (transforms & PNG_TRANSFORM_SWAP_ENDIAN)
+ if ((transforms & PNG_TRANSFORM_SWAP_ENDIAN) != 0)
#ifdef PNG_READ_SWAP_SUPPORTED
png_set_swap(png_ptr);
#else
/* Added at libpng-1.2.41 */
/* Invert the alpha channel from opacity to transparency */
- if (transforms & PNG_TRANSFORM_INVERT_ALPHA)
+ if ((transforms & PNG_TRANSFORM_INVERT_ALPHA) != 0)
#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
png_set_invert_alpha(png_ptr);
#else
/* Added at libpng-1.2.41 */
/* Expand grayscale image to RGB */
- if (transforms & PNG_TRANSFORM_GRAY_TO_RGB)
+ if ((transforms & PNG_TRANSFORM_GRAY_TO_RGB) != 0)
#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
png_set_gray_to_rgb(png_ptr);
#else
#endif
/* Added at libpng-1.5.4 */
- if (transforms & PNG_TRANSFORM_EXPAND_16)
+ if ((transforms & PNG_TRANSFORM_EXPAND_16) != 0)
#ifdef PNG_READ_EXPAND_16_SUPPORTED
png_set_expand_16(png_ptr);
#else
for (iptr = 0; iptr < info_ptr->height; iptr++)
info_ptr->row_pointers[iptr] = png_voidcast(png_bytep,
- png_malloc(png_ptr, info_ptr->rowbytes));
+ png_malloc(png_ptr, info_ptr->rowbytes));
}
png_read_image(png_ptr, info_ptr->row_pointers);
PNG_UNUSED(params)
}
-#endif /* PNG_INFO_IMAGE_SUPPORTED */
-#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */
+#endif /* INFO_IMAGE */
+#endif /* SEQUENTIAL_READ */
#ifdef PNG_SIMPLIFIED_READ_SUPPORTED
/* SIMPLIFIED READ
{
png_uint_32 format = 0;
- if (png_ptr->color_type & PNG_COLOR_MASK_COLOR)
+ if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) != 0)
format |= PNG_FORMAT_FLAG_COLOR;
- if (png_ptr->color_type & PNG_COLOR_MASK_ALPHA)
+ if ((png_ptr->color_type & PNG_COLOR_MASK_ALPHA) != 0)
format |= PNG_FORMAT_FLAG_ALPHA;
/* Use png_ptr here, not info_ptr, because by examination png_handle_tRNS
if (png_ptr->bit_depth == 16)
format |= PNG_FORMAT_FLAG_LINEAR;
- if (png_ptr->color_type & PNG_COLOR_MASK_PALETTE)
+ if ((png_ptr->color_type & PNG_COLOR_MASK_PALETTE) != 0)
format |= PNG_FORMAT_FLAG_COLORMAP;
return format;
{
if (file != NULL)
{
- if (png_image_read_init(image))
+ if (png_image_read_init(image) != 0)
{
/* This is slightly evil, but png_init_io doesn't do anything other
* than this and we haven't changed the standard IO functions so
if (fp != NULL)
{
- if (png_image_read_init(image))
+ if (png_image_read_init(image) != 0)
{
image->opaque->png_ptr->io_ptr = fp;
image->opaque->owned_file = 1;
return 0;
}
-#endif /* PNG_STDIO_SUPPORTED */
+#endif /* STDIO */
static void PNGCBAPI
png_image_memory_read(png_structp png_ptr, png_bytep out, png_size_t need)
{
if (memory != NULL && size > 0)
{
- if (png_image_read_init(image))
+ if (png_image_read_init(image) != 0)
{
/* Now set the IO functions to read from the memory buffer and
* store it into io_ptr. Again do this in-place to avoid calling a
/* But do not ignore image data handling chunks */
png_set_keep_unknown_chunks(png_ptr, PNG_HANDLE_CHUNK_AS_DEFAULT,
- chunks_to_process, (sizeof chunks_to_process)/5);
+ chunks_to_process, (int)/*SAFE*/(sizeof chunks_to_process)/5);
}
}
# define PNG_SKIP_CHUNKS(p) png_image_skip_unused_chunks(p)
#else
# define PNG_SKIP_CHUNKS(p) ((void)0)
-#endif /* PNG_HANDLE_AS_UNKNOWN_SUPPORTED */
+#endif /* HANDLE_AS_UNKNOWN */
/* The following macro gives the exact rounded answer for all values in the
* range 0..255 (it actually divides by 51.2, but the rounding still generates
set_file_encoding(png_image_read_control *display)
{
png_fixed_point g = display->image->opaque->png_ptr->colorspace.gamma;
- if (png_gamma_significant(g))
+ if (png_gamma_significant(g) != 0)
{
- if (png_gamma_not_sRGB(g))
+ if (png_gamma_not_sRGB(g) != 0)
{
display->file_encoding = P_FILE;
display->gamma_to_linear = png_reciprocal(g);
value *= 257;
break;
+#ifdef __GNUC__
default:
png_error(display->image->opaque->png_ptr,
"unexpected encoding (internal error)");
- break;
+#endif
}
return value;
png_uint_32 alpha, int encoding)
{
png_imagep image = display->image;
- const int output_encoding = (image->format & PNG_FORMAT_FLAG_LINEAR) ?
+ const int output_encoding = (image->format & PNG_FORMAT_FLAG_LINEAR) != 0 ?
P_LINEAR : P_sRGB;
const int convert_to_Y = (image->format & PNG_FORMAT_FLAG_COLOR) == 0 &&
(red != green || green != blue);
green = png_gamma_16bit_correct(green*257, g);
blue = png_gamma_16bit_correct(blue*257, g);
- if (convert_to_Y || output_encoding == P_LINEAR)
+ if (convert_to_Y != 0 || output_encoding == P_LINEAR)
{
alpha *= 257;
encoding = P_LINEAR;
encoding = P_LINEAR;
}
- else if (encoding == P_sRGB && (convert_to_Y || output_encoding == P_LINEAR))
+ else if (encoding == P_sRGB &&
+ (convert_to_Y != 0 || output_encoding == P_LINEAR))
{
/* The values are 8-bit sRGB values, but must be converted to 16-bit
* linear.
y = (y + 128) >> 8;
y *= 255;
y = PNG_sRGB_FROM_LINEAR((y + 64) >> 7);
+ alpha = PNG_DIV257(alpha);
encoding = P_sRGB;
}
# define afirst 0
# endif
# ifdef PNG_FORMAT_BGR_SUPPORTED
- const int bgr = (image->format & PNG_FORMAT_FLAG_BGR) ? 2 : 0;
+ const int bgr = (image->format & PNG_FORMAT_FLAG_BGR) != 0 ? 2 : 0;
# else
# define bgr 0
# endif
const png_structrp png_ptr = image->opaque->png_ptr;
const png_uint_32 output_format = image->format;
- const int output_encoding = (output_format & PNG_FORMAT_FLAG_LINEAR) ?
+ const int output_encoding = (output_format & PNG_FORMAT_FLAG_LINEAR) != 0 ?
P_LINEAR : P_sRGB;
unsigned int cmap_entries;
else
{
back_g = display->background->green;
- if (output_format & PNG_FORMAT_FLAG_COLOR)
+ if ((output_format & PNG_FORMAT_FLAG_COLOR) != 0)
{
back_r = display->background->red;
back_b = display->background->blue;
{
unsigned int back_alpha;
- if (output_format & PNG_FORMAT_FLAG_ALPHA)
+ if ((output_format & PNG_FORMAT_FLAG_ALPHA) != 0)
back_alpha = 0;
else
output_processing = PNG_CMAP_NONE;
break;
}
-
+#ifdef __COVERITY__
+ /* Coverity claims that output_encoding cannot be 2 (P_LINEAR)
+ * here.
+ */
+ back_alpha = 255;
+#else
back_alpha = output_encoding == P_LINEAR ? 65535 : 255;
+#endif
}
/* output_processing means that the libpng-processed row will be
*/
data_encoding = P_sRGB;
- if (output_format & PNG_FORMAT_FLAG_ALPHA)
+ if ((output_format & PNG_FORMAT_FLAG_ALPHA) != 0)
{
if (PNG_GA_COLORMAP_ENTRIES > image->colormap_entries)
png_error(png_ptr, "gray+alpha color-map: too few entries");
*/
background_index = i;
png_create_colormap_entry(display, i++, back_r, back_g, back_b,
- output_encoding == P_LINEAR ? 65535U : 255U, output_encoding);
+#ifdef __COVERITY__
+ /* Coverity claims that output_encoding cannot be 2 (P_LINEAR)
+ * here.
+ */ 255U,
+#else
+ output_encoding == P_LINEAR ? 65535U : 255U,
+#endif
+ output_encoding);
/* For non-opaque input composite on the sRGB background - this
* requires inverting the encoding for each component. The input
*/
if ((png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
png_ptr->num_trans > 0) &&
- png_gamma_not_sRGB(png_ptr->colorspace.gamma))
+ png_gamma_not_sRGB(png_ptr->colorspace.gamma) != 0)
{
cmap_entries = make_gray_file_colormap(display);
data_encoding = P_FILE;
/* Is there alpha in the output too? If so all four channels are
* processed into a special RGB cube with alpha support.
*/
- if (output_format & PNG_FORMAT_FLAG_ALPHA)
+ if ((output_format & PNG_FORMAT_FLAG_ALPHA) != 0)
{
png_uint_32 r;
for (i=0; i < cmap_entries; ++i)
{
- if (do_background && i < num_trans && trans[i] < 255)
+ if (do_background != 0 && i < num_trans && trans[i] < 255)
{
if (trans[i] == 0)
png_create_colormap_entry(display, i, back_r, back_g,
default:
png_error(png_ptr, "invalid PNG color type");
/*NOT REACHED*/
- break;
}
/* Now deal with the output processing */
- if (expand_tRNS && png_ptr->num_trans > 0 &&
- (png_ptr->color_type & PNG_COLOR_MASK_ALPHA) == 0)
+ if (expand_tRNS != 0 && png_ptr->num_trans > 0 &&
+ (png_ptr->color_type & PNG_COLOR_MASK_ALPHA) == 0)
png_set_tRNS_to_alpha(png_ptr);
switch (data_encoding)
{
- default:
- png_error(png_ptr, "bad data option (internal error)");
- break;
-
case P_sRGB:
/* Change to 8-bit sRGB */
png_set_alpha_mode_fixed(png_ptr, PNG_ALPHA_PNG, PNG_GAMMA_sRGB);
if (png_ptr->bit_depth > 8)
png_set_scale_16(png_ptr);
break;
+
+#ifdef __GNUC__
+ default:
+ png_error(png_ptr, "bad data option (internal error)");
+#endif
}
if (cmap_entries > 256 || cmap_entries > image->colormap_entries)
png_uint_32 height = image->height;
png_uint_32 width = image->width;
ptrdiff_t step_row = display->row_bytes;
- unsigned int channels = (image->format & PNG_FORMAT_FLAG_COLOR) ? 3 : 1;
+ unsigned int channels =
+ (image->format & PNG_FORMAT_FLAG_COLOR) != 0 ? 3 : 1;
int pass;
for (pass = 0; pass < passes; ++pass)
*/
switch (info_ptr->bit_depth)
{
- default:
- png_error(png_ptr, "unexpected bit depth");
- break;
-
case 8:
/* 8-bit sRGB gray values with an alpha channel; the alpha channel is
* to be removed by composing on a background: either the row if
int swap_alpha = 0;
# ifdef PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED
- if (preserve_alpha && (image->format & PNG_FORMAT_FLAG_AFIRST))
+ if (preserve_alpha != 0 &&
+ (image->format & PNG_FORMAT_FLAG_AFIRST) != 0)
swap_alpha = 1;
# endif
}
}
break;
+
+#ifdef __GNUC__
+ default:
+ png_error(png_ptr, "unexpected bit depth");
+#endif
}
return 1;
int mode; /* alpha mode */
/* Do this first so that we have a record if rgb to gray is happening. */
- if (change & PNG_FORMAT_FLAG_COLOR)
+ if ((change & PNG_FORMAT_FLAG_COLOR) != 0)
{
/* gray<->color transformation required. */
- if (format & PNG_FORMAT_FLAG_COLOR)
+ if ((format & PNG_FORMAT_FLAG_COLOR) != 0)
png_set_gray_to_rgb(png_ptr);
else
* enormous change) 'do_local_background' is used to indicate that
* the problem exists.
*/
- if (base_format & PNG_FORMAT_FLAG_ALPHA)
+ if ((base_format & PNG_FORMAT_FLAG_ALPHA) != 0)
do_local_background = 1/*maybe*/;
png_set_rgb_to_gray_fixed(png_ptr, PNG_ERROR_ACTION_NONE,
{
png_fixed_point input_gamma_default;
- if ((base_format & PNG_FORMAT_FLAG_LINEAR) &&
- (image->flags & PNG_IMAGE_FLAG_16BIT_sRGB) == 0)
+ if ((base_format & PNG_FORMAT_FLAG_LINEAR) != 0 &&
+ (image->flags & PNG_IMAGE_FLAG_16BIT_sRGB) == 0)
input_gamma_default = PNG_GAMMA_LINEAR;
else
input_gamma_default = PNG_DEFAULT_sRGB;
/* If there *is* an alpha channel in the input it must be multiplied
* out; use PNG_ALPHA_STANDARD, otherwise just use PNG_ALPHA_PNG.
*/
- if (base_format & PNG_FORMAT_FLAG_ALPHA)
+ if ((base_format & PNG_FORMAT_FLAG_ALPHA) != 0)
mode = PNG_ALPHA_STANDARD; /* associated alpha */
else
* final value.
*/
if (png_muldiv(>est, output_gamma, png_ptr->colorspace.gamma,
- PNG_FP_1) && !png_gamma_significant(gtest))
+ PNG_FP_1) != 0 && png_gamma_significant(gtest) == 0)
do_local_background = 0;
else if (mode == PNG_ALPHA_STANDARD)
}
/* If the bit-depth changes then handle that here. */
- if (change & PNG_FORMAT_FLAG_LINEAR)
+ if ((change & PNG_FORMAT_FLAG_LINEAR) != 0)
{
- if (linear /*16-bit output*/)
+ if (linear != 0 /*16-bit output*/)
png_set_expand_16(png_ptr);
else /* 8-bit output */
}
/* Now the background/alpha channel changes. */
- if (change & PNG_FORMAT_FLAG_ALPHA)
+ if ((change & PNG_FORMAT_FLAG_ALPHA) != 0)
{
/* Removing an alpha channel requires composition for the 8-bit
* formats; for the 16-bit it is already done, above, by the
* pre-multiplication and the channel just needs to be stripped.
*/
- if (base_format & PNG_FORMAT_FLAG_ALPHA)
+ if ((base_format & PNG_FORMAT_FLAG_ALPHA) != 0)
{
/* If RGB->gray is happening the alpha channel must be left and the
* operation completed locally.
filler = 255;
# ifdef PNG_FORMAT_AFIRST_SUPPORTED
- if (format & PNG_FORMAT_FLAG_AFIRST)
+ if ((format & PNG_FORMAT_FLAG_AFIRST) != 0)
{
where = PNG_FILLER_BEFORE;
change &= ~PNG_FORMAT_FLAG_AFIRST;
png_set_alpha_mode_fixed(png_ptr, mode, output_gamma);
# ifdef PNG_FORMAT_BGR_SUPPORTED
- if (change & PNG_FORMAT_FLAG_BGR)
+ if ((change & PNG_FORMAT_FLAG_BGR) != 0)
{
/* Check only the output format; PNG is never BGR; don't do this if
* the output is gray, but fix up the 'format' value in that case.
*/
- if (format & PNG_FORMAT_FLAG_COLOR)
+ if ((format & PNG_FORMAT_FLAG_COLOR) != 0)
png_set_bgr(png_ptr);
else
# endif
# ifdef PNG_FORMAT_AFIRST_SUPPORTED
- if (change & PNG_FORMAT_FLAG_AFIRST)
+ if ((change & PNG_FORMAT_FLAG_AFIRST) != 0)
{
/* Only relevant if there is an alpha channel - it's particularly
* important to handle this correctly because do_local_compose may
* be set above and then libpng will keep the alpha channel for this
* code to remove.
*/
- if (format & PNG_FORMAT_FLAG_ALPHA)
+ if ((format & PNG_FORMAT_FLAG_ALPHA) != 0)
{
/* Disable this if doing a local background,
* TODO: remove this when local background is no longer required.
{
PNG_CONST png_uint_16 le = 0x0001;
- if (*(png_const_bytep)&le)
+ if ((*(png_const_bytep) & le) != 0)
png_set_swap(png_ptr);
}
{
png_uint_32 info_format = 0;
- if (info_ptr->color_type & PNG_COLOR_MASK_COLOR)
+ if ((info_ptr->color_type & PNG_COLOR_MASK_COLOR) != 0)
info_format |= PNG_FORMAT_FLAG_COLOR;
- if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA)
+ if ((info_ptr->color_type & PNG_COLOR_MASK_ALPHA) != 0)
{
/* do_local_compose removes this channel below. */
if (do_local_compose == 0)
info_format |= PNG_FORMAT_FLAG_LINEAR;
# ifdef PNG_FORMAT_BGR_SUPPORTED
- if (png_ptr->transformations & PNG_BGR)
+ if ((png_ptr->transformations & PNG_BGR) != 0)
info_format |= PNG_FORMAT_FLAG_BGR;
# endif
# ifdef PNG_FORMAT_AFIRST_SUPPORTED
if (do_local_background == 2)
{
- if (format & PNG_FORMAT_FLAG_AFIRST)
+ if ((format & PNG_FORMAT_FLAG_AFIRST) != 0)
info_format |= PNG_FORMAT_FLAG_AFIRST;
}
/* Choose the correct 'end' routine; for the color-map case all the
* setup has already been done.
*/
- if (image->format & PNG_FORMAT_FLAG_COLORMAP)
+ if ((image->format & PNG_FORMAT_FLAG_COLORMAP) != 0)
result =
png_safe_execute(image, png_image_read_colormap, &display) &&
png_safe_execute(image, png_image_read_colormapped, &display);
return 0;
}
-#endif /* PNG_SIMPLIFIED_READ_SUPPORTED */
-#endif /* PNG_READ_SUPPORTED */
+#endif /* SIMPLIFIED_READ */
+#endif /* READ */
/* pngrio.c - functions for data input
*
- * Last changed in libpng 1.6.9 [February 6, 2014]
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.17 [March 26, 2015]
+ * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* reads from a file pointer. Note that this routine sometimes gets called
* with very small lengths, so you should implement some kind of simple
* buffering if you are using unbuffered reads. This should never be asked
- * to read more then 64K on a 16 bit machine.
+ * to read more than 64K on a 16-bit machine.
*/
void /* PRIVATE */
png_read_data(png_structrp png_ptr, png_bytep data, png_size_t length)
png_ptr->output_flush_fn = NULL;
#endif
}
-#endif /* PNG_READ_SUPPORTED */
+#endif /* READ */
/* pngrtran.c - transforms the data in a row for PNG readers
*
- * Last changed in libpng 1.6.11 [June 5, 2014]
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.19 [November 12, 2015]
+ * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
#ifdef PNG_READ_TRANSFORMS_SUPPORTED
/* Is it OK to set a transformation now? Only if png_start_read_image or
* png_read_update_info have not been called. It is not necessary for the IHDR
- * to have been read in all cases, the parameter allows for this check too.
+ * to have been read in all cases; the need_IHDR parameter allows for this
+ * check too.
*/
static int
png_rtran_ok(png_structrp png_ptr, int need_IHDR)
{
if (png_ptr != NULL)
{
- if (png_ptr->flags & PNG_FLAG_ROW_INIT)
+ if ((png_ptr->flags & PNG_FLAG_ROW_INIT) != 0)
png_app_error(png_ptr,
"invalid after png_start_read_image or png_read_update_info");
{
png_debug(1, "in png_set_background_fixed");
- if (!png_rtran_ok(png_ptr, 0) || background_color == NULL)
+ if (png_rtran_ok(png_ptr, 0) == 0 || background_color == NULL)
return;
if (background_gamma_code == PNG_BACKGROUND_GAMMA_UNKNOWN)
{
png_debug(1, "in png_set_scale_16");
- if (!png_rtran_ok(png_ptr, 0))
+ if (png_rtran_ok(png_ptr, 0) == 0)
return;
png_ptr->transformations |= PNG_SCALE_16_TO_8;
{
png_debug(1, "in png_set_strip_16");
- if (!png_rtran_ok(png_ptr, 0))
+ if (png_rtran_ok(png_ptr, 0) == 0)
return;
png_ptr->transformations |= PNG_16_TO_8;
{
png_debug(1, "in png_set_strip_alpha");
- if (!png_rtran_ok(png_ptr, 0))
+ if (png_rtran_ok(png_ptr, 0) == 0)
return;
png_ptr->transformations |= PNG_STRIP_ALPHA;
png_debug(1, "in png_set_alpha_mode");
- if (!png_rtran_ok(png_ptr, 0))
+ if (png_rtran_ok(png_ptr, 0) == 0)
return;
output_gamma = translate_gamma_flags(png_ptr, output_gamma, 1/*screen*/);
png_ptr->background_gamma_type = PNG_BACKGROUND_GAMMA_FILE;
png_ptr->transformations &= ~PNG_BACKGROUND_EXPAND;
- if (png_ptr->transformations & PNG_COMPOSE)
+ if ((png_ptr->transformations & PNG_COMPOSE) != 0)
png_error(png_ptr,
"conflicting calls to set alpha mode and background");
/* Dither file to 8-bit. Supply a palette, the current number
* of elements in the palette, the maximum number of elements
* allowed, and a histogram if possible. If the current number
- * of colors is greater then the maximum number, the palette will be
+ * of colors is greater than the maximum number, the palette will be
* modified to fit in the maximum number. "full_quantize" indicates
* whether we need a quantizing cube set up for RGB images, or if we
* simply are reducing the number of colors in a paletted image.
{
png_debug(1, "in png_set_quantize");
- if (!png_rtran_ok(png_ptr, 0))
+ if (png_rtran_ok(png_ptr, 0) == 0)
return;
png_ptr->transformations |= PNG_QUANTIZE;
png_free(png_ptr, distance);
}
}
-#endif /* PNG_READ_QUANTIZE_SUPPORTED */
+#endif /* READ_QUANTIZE */
#ifdef PNG_READ_GAMMA_SUPPORTED
void PNGFAPI
{
png_debug(1, "in png_set_gamma_fixed");
- if (!png_rtran_ok(png_ptr, 0))
+ if (png_rtran_ok(png_ptr, 0) == 0)
return;
/* New in libpng-1.5.4 - reserve particular negative values as flags. */
png_set_gamma_fixed(png_ptr, convert_gamma_value(png_ptr, scrn_gamma),
convert_gamma_value(png_ptr, file_gamma));
}
-# endif /* FLOATING_POINT_SUPPORTED */
+# endif /* FLOATING_POINT */
#endif /* READ_GAMMA */
#ifdef PNG_READ_EXPAND_SUPPORTED
{
png_debug(1, "in png_set_expand");
- if (!png_rtran_ok(png_ptr, 0))
+ if (png_rtran_ok(png_ptr, 0) == 0)
return;
png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS);
{
png_debug(1, "in png_set_palette_to_rgb");
- if (!png_rtran_ok(png_ptr, 0))
+ if (png_rtran_ok(png_ptr, 0) == 0)
return;
png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS);
{
png_debug(1, "in png_set_expand_gray_1_2_4_to_8");
- if (!png_rtran_ok(png_ptr, 0))
+ if (png_rtran_ok(png_ptr, 0) == 0)
return;
png_ptr->transformations |= PNG_EXPAND;
{
png_debug(1, "in png_set_tRNS_to_alpha");
- if (!png_rtran_ok(png_ptr, 0))
+ if (png_rtran_ok(png_ptr, 0) == 0)
return;
png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS);
}
-#endif /* defined(PNG_READ_EXPAND_SUPPORTED) */
+#endif /* READ_EXPAND */
#ifdef PNG_READ_EXPAND_16_SUPPORTED
/* Expand to 16-bit channels, expand the tRNS chunk too (because otherwise
{
png_debug(1, "in png_set_expand_16");
- if (!png_rtran_ok(png_ptr, 0))
+ if (png_rtran_ok(png_ptr, 0) == 0)
return;
png_ptr->transformations |= (PNG_EXPAND_16 | PNG_EXPAND | PNG_EXPAND_tRNS);
{
png_debug(1, "in png_set_gray_to_rgb");
- if (!png_rtran_ok(png_ptr, 0))
+ if (png_rtran_ok(png_ptr, 0) == 0)
return;
/* Because rgb must be 8 bits or more: */
/* Need the IHDR here because of the check on color_type below. */
/* TODO: fix this */
- if (!png_rtran_ok(png_ptr, 1))
+ if (png_rtran_ok(png_ptr, 1) == 0)
return;
- switch(error_action)
+ switch (error_action)
{
case PNG_ERROR_ACTION_NONE:
png_ptr->transformations |= PNG_RGB_TO_GRAY;
default:
png_error(png_ptr, "invalid error action to rgb_to_gray");
- break;
}
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
png_uint_16 red_int, green_int;
/* NOTE: this calculation does not round, but this behavior is retained
- * for consistency, the inaccuracy is very small. The code here always
+ * for consistency; the inaccuracy is very small. The code here always
* overwrites the coefficients, regardless of whether they have been
* defaulted or set already.
*/
* the palette.
*/
-/*For the moment 'png_init_palette_transformations' and
+/* For the moment 'png_init_palette_transformations' and
* 'png_init_rgb_transformations' only do some flag canceling optimizations.
* The intent is that these two routines should have palette or rgb operations
* extracted from 'png_init_read_transformations'.
/* The following code cannot be entered in the alpha pre-multiplication case
* because PNG_BACKGROUND_EXPAND is cancelled below.
*/
- if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) &&
- (png_ptr->transformations & PNG_EXPAND))
+ if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) != 0 &&
+ (png_ptr->transformations & PNG_EXPAND) != 0)
{
{
png_ptr->background.red =
png_ptr->palette[png_ptr->background.index].blue;
#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
- if (png_ptr->transformations & PNG_INVERT_ALPHA)
+ if ((png_ptr->transformations & PNG_INVERT_ALPHA) != 0)
{
- if (!(png_ptr->transformations & PNG_EXPAND_tRNS))
+ if ((png_ptr->transformations & PNG_EXPAND_tRNS) == 0)
{
/* Invert the alpha channel (in tRNS) unless the pixels are
* going to be expanded, in which case leave it for later
png_ptr->trans_alpha[i]);
}
}
-#endif /* PNG_READ_INVERT_ALPHA_SUPPORTED */
+#endif /* READ_INVERT_ALPHA */
}
} /* background expand and (therefore) no alpha association. */
-#endif /* PNG_READ_EXPAND_SUPPORTED && PNG_READ_BACKGROUND_SUPPORTED */
+#endif /* READ_EXPAND && READ_BACKGROUND */
}
static void /* PRIVATE */
/* The following code cannot be entered in the alpha pre-multiplication case
* because PNG_BACKGROUND_EXPAND is cancelled below.
*/
- if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) &&
- (png_ptr->transformations & PNG_EXPAND) &&
- !(png_ptr->color_type & PNG_COLOR_MASK_COLOR))
+ if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) != 0 &&
+ (png_ptr->transformations & PNG_EXPAND) != 0 &&
+ (png_ptr->color_type & PNG_COLOR_MASK_COLOR) == 0)
/* i.e., GRAY or GRAY_ALPHA */
{
{
png_ptr->background.red = png_ptr->background.green =
png_ptr->background.blue = (png_uint_16)gray;
- if (!(png_ptr->transformations & PNG_EXPAND_tRNS))
+ if ((png_ptr->transformations & PNG_EXPAND_tRNS) == 0)
{
png_ptr->trans_color.red = png_ptr->trans_color.green =
png_ptr->trans_color.blue = (png_uint_16)trans_gray;
}
}
} /* background expand and (therefore) no alpha association. */
-#endif /* PNG_READ_EXPAND_SUPPORTED && PNG_READ_BACKGROUND_SUPPORTED */
+#endif /* READ_EXPAND && READ_BACKGROUND */
}
void /* PRIVATE */
#endif
/* Certain transformations have the effect of preventing other
- * transformations that happen afterward in png_do_read_transformations,
+ * transformations that happen afterward in png_do_read_transformations;
* resolve the interdependencies here. From the code of
* png_do_read_transformations the order is:
*
* 23) PNG_USER_TRANSFORM [must be last]
*/
#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
- if ((png_ptr->transformations & PNG_STRIP_ALPHA) &&
- !(png_ptr->transformations & PNG_COMPOSE))
+ if ((png_ptr->transformations & PNG_STRIP_ALPHA) != 0 &&
+ (png_ptr->transformations & PNG_COMPOSE) == 0)
{
/* Stripping the alpha channel happens immediately after the 'expand'
* transformations, before all other transformation, so it cancels out
/* If the screen gamma is about 1.0 then the OPTIMIZE_ALPHA and ENCODE_ALPHA
* settings will have no effect.
*/
- if (!png_gamma_significant(png_ptr->screen_gamma))
+ if (png_gamma_significant(png_ptr->screen_gamma) == 0)
{
png_ptr->transformations &= ~PNG_ENCODE_ALPHA;
png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
/* Make sure the coefficients for the rgb to gray conversion are set
* appropriately.
*/
- if (png_ptr->transformations & PNG_RGB_TO_GRAY)
+ if ((png_ptr->transformations & PNG_RGB_TO_GRAY) != 0)
png_colorspace_set_rgb_coefficients(png_ptr);
#endif
* png_set_background, along with the bit depth, then the code has a record
* of exactly what color space the background is currently in.
*/
- if (png_ptr->transformations & PNG_BACKGROUND_EXPAND)
+ if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) != 0)
{
/* PNG_BACKGROUND_EXPAND: the background is in the file color space, so if
* the file was grayscale the background value is gray.
*/
- if (!(png_ptr->color_type & PNG_COLOR_MASK_COLOR))
+ if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) == 0)
png_ptr->mode |= PNG_BACKGROUND_IS_GRAY;
}
- else if (png_ptr->transformations & PNG_COMPOSE)
+ else if ((png_ptr->transformations & PNG_COMPOSE) != 0)
{
/* PNG_COMPOSE: png_set_background was called with need_expand false,
* so the color is in the color space of the output or png_set_alpha_mode
* was called and the color is black. Ignore RGB_TO_GRAY because that
* happens before GRAY_TO_RGB.
*/
- if (png_ptr->transformations & PNG_GRAY_TO_RGB)
+ if ((png_ptr->transformations & PNG_GRAY_TO_RGB) != 0)
{
if (png_ptr->background.red == png_ptr->background.green &&
png_ptr->background.red == png_ptr->background.blue)
}
}
}
-#endif /* PNG_READ_EXPAND_SUPPORTED && PNG_READ_BACKGROUND_SUPPORTED */
-#endif /* PNG_READ_GRAY_TO_RGB_SUPPORTED */
+#endif /* READ_EXPAND && READ_BACKGROUND */
+#endif /* READ_GRAY_TO_RGB */
/* For indexed PNG data (PNG_COLOR_TYPE_PALETTE) many of the transformations
* can be performed directly on the palette, and some (such as rgb to gray)
#if defined(PNG_READ_BACKGROUND_SUPPORTED) && \
defined(PNG_READ_EXPAND_16_SUPPORTED)
- if ((png_ptr->transformations & PNG_EXPAND_16) &&
- (png_ptr->transformations & PNG_COMPOSE) &&
- !(png_ptr->transformations & PNG_BACKGROUND_EXPAND) &&
- png_ptr->bit_depth != 16)
+ if ((png_ptr->transformations & PNG_EXPAND_16) != 0 &&
+ (png_ptr->transformations & PNG_COMPOSE) != 0 &&
+ (png_ptr->transformations & PNG_BACKGROUND_EXPAND) == 0 &&
+ png_ptr->bit_depth != 16)
{
/* TODO: fix this. Because the expand_16 operation is after the compose
* handling the background color must be 8, not 16, bits deep, but the
CHOP(png_ptr->background.gray);
# undef CHOP
}
-#endif /* PNG_READ_BACKGROUND_SUPPORTED && PNG_READ_EXPAND_16_SUPPORTED */
+#endif /* READ_BACKGROUND && READ_EXPAND_16 */
#if defined(PNG_READ_BACKGROUND_SUPPORTED) && \
(defined(PNG_READ_SCALE_16_TO_8_SUPPORTED) || \
defined(PNG_READ_STRIP_16_TO_8_SUPPORTED))
- if ((png_ptr->transformations & (PNG_16_TO_8|PNG_SCALE_16_TO_8)) &&
- (png_ptr->transformations & PNG_COMPOSE) &&
- !(png_ptr->transformations & PNG_BACKGROUND_EXPAND) &&
- png_ptr->bit_depth == 16)
+ if ((png_ptr->transformations & (PNG_16_TO_8|PNG_SCALE_16_TO_8)) != 0 &&
+ (png_ptr->transformations & PNG_COMPOSE) != 0 &&
+ (png_ptr->transformations & PNG_BACKGROUND_EXPAND) == 0 &&
+ png_ptr->bit_depth == 16)
{
/* On the other hand, if a 16-bit file is to be reduced to 8-bits per
* component this will also happen after PNG_COMPOSE and so the background
* file gamma - if it is not 1.0 both RGB_TO_GRAY and COMPOSE need the
* tables.
*/
- if ((png_ptr->transformations & PNG_GAMMA)
- || ((png_ptr->transformations & PNG_RGB_TO_GRAY)
- && (png_gamma_significant(png_ptr->colorspace.gamma) ||
- png_gamma_significant(png_ptr->screen_gamma)))
- || ((png_ptr->transformations & PNG_COMPOSE)
- && (png_gamma_significant(png_ptr->colorspace.gamma)
- || png_gamma_significant(png_ptr->screen_gamma)
+ if ((png_ptr->transformations & PNG_GAMMA) != 0 ||
+ ((png_ptr->transformations & PNG_RGB_TO_GRAY) != 0 &&
+ (png_gamma_significant(png_ptr->colorspace.gamma) != 0 ||
+ png_gamma_significant(png_ptr->screen_gamma) != 0)) ||
+ ((png_ptr->transformations & PNG_COMPOSE) != 0 &&
+ (png_gamma_significant(png_ptr->colorspace.gamma) != 0 ||
+ png_gamma_significant(png_ptr->screen_gamma) != 0
# ifdef PNG_READ_BACKGROUND_SUPPORTED
- || (png_ptr->background_gamma_type == PNG_BACKGROUND_GAMMA_UNIQUE
- && png_gamma_significant(png_ptr->background_gamma))
+ || (png_ptr->background_gamma_type == PNG_BACKGROUND_GAMMA_UNIQUE &&
+ png_gamma_significant(png_ptr->background_gamma) != 0)
# endif
- )) || ((png_ptr->transformations & PNG_ENCODE_ALPHA)
- && png_gamma_significant(png_ptr->screen_gamma))
- )
+ )) || ((png_ptr->transformations & PNG_ENCODE_ALPHA) != 0 &&
+ png_gamma_significant(png_ptr->screen_gamma) != 0))
{
png_build_gamma_table(png_ptr, png_ptr->bit_depth);
#ifdef PNG_READ_BACKGROUND_SUPPORTED
- if (png_ptr->transformations & PNG_COMPOSE)
+ if ((png_ptr->transformations & PNG_COMPOSE) != 0)
{
/* Issue a warning about this combination: because RGB_TO_GRAY is
* optimized to do the gamma transform if present yet do_background has
* double-gamma-correction happens. This is true in all versions of
* libpng to date.
*/
- if (png_ptr->transformations & PNG_RGB_TO_GRAY)
+ if ((png_ptr->transformations & PNG_RGB_TO_GRAY) != 0)
png_warning(png_ptr,
"libpng does not support gamma+background+rgb_to_gray");
- if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
+ if ((png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) != 0)
{
/* We don't get to here unless there is a tRNS chunk with non-opaque
* entries - see the checking code at the start of this function.
break;
}
- if (png_gamma_significant(gs))
+ if (png_gamma_significant(gs) != 0)
{
back.red = png_gamma_8bit_correct(png_ptr->background.red,
gs);
back.blue = (png_byte)png_ptr->background.blue;
}
- if (png_gamma_significant(g))
+ if (png_gamma_significant(g) != 0)
{
back_1.red = png_gamma_8bit_correct(png_ptr->background.red,
g);
else
/* Transformation does not include PNG_BACKGROUND */
-#endif /* PNG_READ_BACKGROUND_SUPPORTED */
+#endif /* READ_BACKGROUND */
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE
#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
/* RGB_TO_GRAY needs to have non-gamma-corrected values! */
#ifdef PNG_READ_BACKGROUND_SUPPORTED
else
#endif
-#endif /* PNG_READ_GAMMA_SUPPORTED */
+#endif /* READ_GAMMA */
#ifdef PNG_READ_BACKGROUND_SUPPORTED
/* No GAMMA transformation (see the hanging else 4 lines above) */
- if ((png_ptr->transformations & PNG_COMPOSE) &&
+ if ((png_ptr->transformations & PNG_COMPOSE) != 0 &&
(png_ptr->color_type == PNG_COLOR_TYPE_PALETTE))
{
int i;
png_ptr->transformations &= ~PNG_COMPOSE;
}
-#endif /* PNG_READ_BACKGROUND_SUPPORTED */
+#endif /* READ_BACKGROUND */
#ifdef PNG_READ_SHIFT_SUPPORTED
- if ((png_ptr->transformations & PNG_SHIFT) &&
- !(png_ptr->transformations & PNG_EXPAND) &&
+ if ((png_ptr->transformations & PNG_SHIFT) != 0 &&
+ (png_ptr->transformations & PNG_EXPAND) == 0 &&
(png_ptr->color_type == PNG_COLOR_TYPE_PALETTE))
{
int i;
png_ptr->palette[i].blue = (png_byte)component;
}
}
-#endif /* PNG_READ_SHIFT_SUPPORTED */
+#endif /* READ_SHIFT */
}
/* Modify the info structure to reflect the transformations. The
png_debug(1, "in png_read_transform_info");
#ifdef PNG_READ_EXPAND_SUPPORTED
- if (png_ptr->transformations & PNG_EXPAND)
+ if ((png_ptr->transformations & PNG_EXPAND) != 0)
{
if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
{
}
else
{
- if (png_ptr->num_trans)
+ if (png_ptr->num_trans != 0)
{
- if (png_ptr->transformations & PNG_EXPAND_tRNS)
+ if ((png_ptr->transformations & PNG_EXPAND_tRNS) != 0)
info_ptr->color_type |= PNG_COLOR_MASK_ALPHA;
}
if (info_ptr->bit_depth < 8)
/* The following is almost certainly wrong unless the background value is in
* the screen space!
*/
- if (png_ptr->transformations & PNG_COMPOSE)
+ if ((png_ptr->transformations & PNG_COMPOSE) != 0)
info_ptr->background = png_ptr->background;
#endif
{
# ifdef PNG_READ_16BIT_SUPPORTED
# ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
- if (png_ptr->transformations & PNG_SCALE_16_TO_8)
+ if ((png_ptr->transformations & PNG_SCALE_16_TO_8) != 0)
info_ptr->bit_depth = 8;
# endif
# ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED
- if (png_ptr->transformations & PNG_16_TO_8)
+ if ((png_ptr->transformations & PNG_16_TO_8) != 0)
info_ptr->bit_depth = 8;
# endif
# else
- /* No 16 bit support: force chopping 16-bit input down to 8, in this case
+ /* No 16-bit support: force chopping 16-bit input down to 8, in this case
* the app program can chose if both APIs are available by setting the
* correct scaling to use.
*/
CONFIGURATION ERROR: you must enable at least one 16 to 8 method
# endif
# endif
-#endif /* !READ_16BIT_SUPPORTED */
+#endif /* !READ_16BIT */
}
#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
- if (png_ptr->transformations & PNG_GRAY_TO_RGB)
+ if ((png_ptr->transformations & PNG_GRAY_TO_RGB) != 0)
info_ptr->color_type = (png_byte)(info_ptr->color_type |
PNG_COLOR_MASK_COLOR);
#endif
#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
- if (png_ptr->transformations & PNG_RGB_TO_GRAY)
+ if ((png_ptr->transformations & PNG_RGB_TO_GRAY) != 0)
info_ptr->color_type = (png_byte)(info_ptr->color_type &
~PNG_COLOR_MASK_COLOR);
#endif
#ifdef PNG_READ_QUANTIZE_SUPPORTED
- if (png_ptr->transformations & PNG_QUANTIZE)
+ if ((png_ptr->transformations & PNG_QUANTIZE) != 0)
{
if (((info_ptr->color_type == PNG_COLOR_TYPE_RGB) ||
(info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA)) &&
- png_ptr->palette_lookup && info_ptr->bit_depth == 8)
+ png_ptr->palette_lookup != 0 && info_ptr->bit_depth == 8)
{
info_ptr->color_type = PNG_COLOR_TYPE_PALETTE;
}
#endif
#ifdef PNG_READ_EXPAND_16_SUPPORTED
- if (png_ptr->transformations & PNG_EXPAND_16 && info_ptr->bit_depth == 8 &&
- info_ptr->color_type != PNG_COLOR_TYPE_PALETTE)
+ if ((png_ptr->transformations & PNG_EXPAND_16) != 0 &&
+ info_ptr->bit_depth == 8 &&
+ info_ptr->color_type != PNG_COLOR_TYPE_PALETTE)
{
info_ptr->bit_depth = 16;
}
#endif
#ifdef PNG_READ_PACK_SUPPORTED
- if ((png_ptr->transformations & PNG_PACK) && (info_ptr->bit_depth < 8))
+ if ((png_ptr->transformations & PNG_PACK) != 0 &&
+ (info_ptr->bit_depth < 8))
info_ptr->bit_depth = 8;
#endif
if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
info_ptr->channels = 1;
- else if (info_ptr->color_type & PNG_COLOR_MASK_COLOR)
+ else if ((info_ptr->color_type & PNG_COLOR_MASK_COLOR) != 0)
info_ptr->channels = 3;
else
info_ptr->channels = 1;
#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
- if (png_ptr->transformations & PNG_STRIP_ALPHA)
+ if ((png_ptr->transformations & PNG_STRIP_ALPHA) != 0)
{
info_ptr->color_type = (png_byte)(info_ptr->color_type &
~PNG_COLOR_MASK_ALPHA);
}
#endif
- if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA)
+ if ((info_ptr->color_type & PNG_COLOR_MASK_ALPHA) != 0)
info_ptr->channels++;
#ifdef PNG_READ_FILLER_SUPPORTED
/* STRIP_ALPHA and FILLER allowed: MASK_ALPHA bit stripped above */
- if ((png_ptr->transformations & PNG_FILLER) &&
- ((info_ptr->color_type == PNG_COLOR_TYPE_RGB) ||
- (info_ptr->color_type == PNG_COLOR_TYPE_GRAY)))
+ if ((png_ptr->transformations & PNG_FILLER) != 0 &&
+ (info_ptr->color_type == PNG_COLOR_TYPE_RGB ||
+ info_ptr->color_type == PNG_COLOR_TYPE_GRAY))
{
info_ptr->channels++;
/* If adding a true alpha channel not just filler */
- if (png_ptr->transformations & PNG_ADD_ALPHA)
+ if ((png_ptr->transformations & PNG_ADD_ALPHA) != 0)
info_ptr->color_type |= PNG_COLOR_MASK_ALPHA;
}
#endif
#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) && \
defined(PNG_READ_USER_TRANSFORM_SUPPORTED)
- if (png_ptr->transformations & PNG_USER_TRANSFORM)
+ if ((png_ptr->transformations & PNG_USER_TRANSFORM) != 0)
{
- if (info_ptr->bit_depth < png_ptr->user_transform_depth)
+ if (png_ptr->user_transform_depth != 0)
info_ptr->bit_depth = png_ptr->user_transform_depth;
- if (info_ptr->channels < png_ptr->user_transform_channels)
+ if (png_ptr->user_transform_channels != 0)
info_ptr->channels = png_ptr->user_transform_channels;
}
#endif
int channels = 0;
int bit_depth = row_info->bit_depth;
- if (color_type & PNG_COLOR_MASK_COLOR)
+ if ((color_type & PNG_COLOR_MASK_COLOR) != 0)
{
shift[channels++] = bit_depth - sig_bits->red;
shift[channels++] = bit_depth - sig_bits->green;
shift[channels++] = bit_depth - sig_bits->gray;
}
- if (color_type & PNG_COLOR_MASK_ALPHA)
+ if ((color_type & PNG_COLOR_MASK_ALPHA) != 0)
{
shift[channels++] = bit_depth - sig_bits->alpha;
}
if (++channel >= channels)
channel = 0;
*bp++ = (png_byte)(value >> 8);
- *bp++ = (png_byte)(value & 0xff);
+ *bp++ = (png_byte)value;
}
break;
}
while (sp < ep)
{
- /* The input is an array of 16 bit components, these must be scaled to
- * 8 bits each. For a 16 bit value V the required value (from the PNG
+ /* The input is an array of 16-bit components, these must be scaled to
+ * 8 bits each. For a 16-bit value V the required value (from the PNG
* specification) is:
*
* (V * 255) / 65535
*
* The approximate differs from the exact answer only when (vlo-vhi) is
* 128; it then gives a correction of +1 when the exact correction is
- * 0. This gives 128 errors. The exact answer (correct for all 16 bit
+ * 0. This gives 128 errors. The exact answer (correct for all 16-bit
* input values) is:
*
* error = (vlo-vhi+128)*65535 >> 24;
png_uint_32 row_width = row_info->width;
#ifdef PNG_READ_16BIT_SUPPORTED
- png_byte hi_filler = (png_byte)((filler>>8) & 0xff);
+ png_byte hi_filler = (png_byte)(filler>>8);
#endif
- png_byte lo_filler = (png_byte)(filler & 0xff);
+ png_byte lo_filler = (png_byte)filler;
png_debug(1, "in png_do_read_filler");
{
if (row_info->bit_depth == 8)
{
- if (flags & PNG_FLAG_FILLER_AFTER)
+ if ((flags & PNG_FLAG_FILLER_AFTER) != 0)
{
/* This changes the data from G to GX */
png_bytep sp = row + (png_size_t)row_width;
#ifdef PNG_READ_16BIT_SUPPORTED
else if (row_info->bit_depth == 16)
{
- if (flags & PNG_FLAG_FILLER_AFTER)
+ if ((flags & PNG_FLAG_FILLER_AFTER) != 0)
{
/* This changes the data from GG to GGXX */
png_bytep sp = row + (png_size_t)row_width * 2;
png_bytep dp = sp + (png_size_t)row_width * 2;
for (i = 1; i < row_width; i++)
{
- *(--dp) = hi_filler;
*(--dp) = lo_filler;
+ *(--dp) = hi_filler;
*(--dp) = *(--sp);
*(--dp) = *(--sp);
}
- *(--dp) = hi_filler;
*(--dp) = lo_filler;
+ *(--dp) = hi_filler;
row_info->channels = 2;
row_info->pixel_depth = 32;
row_info->rowbytes = row_width * 4;
{
*(--dp) = *(--sp);
*(--dp) = *(--sp);
- *(--dp) = hi_filler;
*(--dp) = lo_filler;
+ *(--dp) = hi_filler;
}
row_info->channels = 2;
row_info->pixel_depth = 32;
{
if (row_info->bit_depth == 8)
{
- if (flags & PNG_FLAG_FILLER_AFTER)
+ if ((flags & PNG_FLAG_FILLER_AFTER) != 0)
{
/* This changes the data from RGB to RGBX */
png_bytep sp = row + (png_size_t)row_width * 3;
#ifdef PNG_READ_16BIT_SUPPORTED
else if (row_info->bit_depth == 16)
{
- if (flags & PNG_FLAG_FILLER_AFTER)
+ if ((flags & PNG_FLAG_FILLER_AFTER) != 0)
{
/* This changes the data from RRGGBB to RRGGBBXX */
png_bytep sp = row + (png_size_t)row_width * 6;
png_bytep dp = sp + (png_size_t)row_width * 2;
for (i = 1; i < row_width; i++)
{
- *(--dp) = hi_filler;
*(--dp) = lo_filler;
+ *(--dp) = hi_filler;
*(--dp) = *(--sp);
*(--dp) = *(--sp);
*(--dp) = *(--sp);
*(--dp) = *(--sp);
*(--dp) = *(--sp);
}
- *(--dp) = hi_filler;
*(--dp) = lo_filler;
+ *(--dp) = hi_filler;
row_info->channels = 4;
row_info->pixel_depth = 64;
row_info->rowbytes = row_width * 8;
*(--dp) = *(--sp);
*(--dp) = *(--sp);
*(--dp) = *(--sp);
- *(--dp) = hi_filler;
*(--dp) = lo_filler;
+ *(--dp) = hi_filler;
}
row_info->channels = 4;
png_debug(1, "in png_do_gray_to_rgb");
if (row_info->bit_depth >= 8 &&
- !(row_info->color_type & PNG_COLOR_MASK_COLOR))
+ (row_info->color_type & PNG_COLOR_MASK_COLOR) == 0)
{
if (row_info->color_type == PNG_COLOR_TYPE_GRAY)
{
png_debug(1, "in png_do_rgb_to_gray");
- if (!(row_info->color_type & PNG_COLOR_MASK_PALETTE) &&
- (row_info->color_type & PNG_COLOR_MASK_COLOR))
+ if ((row_info->color_type & PNG_COLOR_MASK_PALETTE) == 0 &&
+ (row_info->color_type & PNG_COLOR_MASK_COLOR) != 0)
{
PNG_CONST png_uint_32 rc = png_ptr->rgb_to_gray_red_coeff;
PNG_CONST png_uint_32 gc = png_ptr->rgb_to_gray_green_coeff;
for (i = 0; i < row_width; i++)
{
png_uint_16 red, green, blue, w;
+ png_byte hi,lo;
- red = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2;
- green = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2;
- blue = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2;
+ hi=*(sp)++; lo=*(sp)++; red = (png_uint_16)((hi << 8) | (lo));
+ hi=*(sp)++; lo=*(sp)++; green = (png_uint_16)((hi << 8) | (lo));
+ hi=*(sp)++; lo=*(sp)++; blue = (png_uint_16)((hi << 8) | (lo));
if (red == green && red == blue)
{
if (png_ptr->gamma_16_table != NULL)
- w = png_ptr->gamma_16_table[(red&0xff)
- >> png_ptr->gamma_shift][red>>8];
+ w = png_ptr->gamma_16_table[(red & 0xff)
+ >> png_ptr->gamma_shift][red >> 8];
else
w = red;
else
{
- png_uint_16 red_1 = png_ptr->gamma_16_to_1[(red&0xff)
+ png_uint_16 red_1 = png_ptr->gamma_16_to_1[(red & 0xff)
>> png_ptr->gamma_shift][red>>8];
png_uint_16 green_1 =
- png_ptr->gamma_16_to_1[(green&0xff) >>
+ png_ptr->gamma_16_to_1[(green & 0xff) >>
png_ptr->gamma_shift][green>>8];
- png_uint_16 blue_1 = png_ptr->gamma_16_to_1[(blue&0xff)
+ png_uint_16 blue_1 = png_ptr->gamma_16_to_1[(blue & 0xff)
>> png_ptr->gamma_shift][blue>>8];
png_uint_16 gray16 = (png_uint_16)((rc*red_1 + gc*green_1
+ bc*blue_1 + 16384)>>15);
- w = png_ptr->gamma_16_from_1[(gray16&0xff) >>
+ w = png_ptr->gamma_16_from_1[(gray16 & 0xff) >>
png_ptr->gamma_shift][gray16 >> 8];
rgb_error |= 1;
}
for (i = 0; i < row_width; i++)
{
png_uint_16 red, green, blue, gray16;
+ png_byte hi,lo;
- red = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2;
- green = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2;
- blue = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2;
+ hi=*(sp)++; lo=*(sp)++; red = (png_uint_16)((hi << 8) | (lo));
+ hi=*(sp)++; lo=*(sp)++; green = (png_uint_16)((hi << 8) | (lo));
+ hi=*(sp)++; lo=*(sp)++; blue = (png_uint_16)((hi << 8) | (lo));
if (red != green || red != blue)
rgb_error |= 1;
- /* From 1.5.5 in the 16 bit case do the accurate conversion even
+ /* From 1.5.5 in the 16-bit case do the accurate conversion even
* in the 'fast' case - this is because this is where the code
- * ends up when handling linear 16 bit data.
+ * ends up when handling linear 16-bit data.
*/
gray16 = (png_uint_16)((rc*red + gc*green + bc*blue + 16384) >>
15);
- *(dp++) = (png_byte)((gray16>>8) & 0xff);
+ *(dp++) = (png_byte)((gray16 >> 8) & 0xff);
*(dp++) = (png_byte)(gray16 & 0xff);
if (have_alpha != 0)
if ((png_uint_16)((*sp >> shift) & 0x0f)
== png_ptr->trans_color.gray)
{
- unsigned int tmp = *sp & (0xf0f >> (4 - shift));
+ unsigned int tmp = *sp & (0x0f0f >> (4 - shift));
tmp |= png_ptr->background.gray << shift;
*sp = (png_byte)(tmp & 0xff);
}
unsigned int p = (*sp >> shift) & 0x0f;
unsigned int g = (gamma_table[p | (p << 4)] >> 4) &
0x0f;
- unsigned int tmp = *sp & (0xf0f >> (4 - shift));
+ unsigned int tmp = *sp & (0x0f0f >> (4 - shift));
tmp |= g << shift;
*sp = (png_byte)(tmp & 0xff);
}
if ((png_uint_16)((*sp >> shift) & 0x0f)
== png_ptr->trans_color.gray)
{
- unsigned int tmp = *sp & (0xf0f >> (4 - shift));
+ unsigned int tmp = *sp & (0x0f0f >> (4 - shift));
tmp |= png_ptr->background.gray << shift;
*sp = (png_byte)(tmp & 0xff);
}
if (optimize != 0)
w = v;
else
- w = gamma_16_from_1[(v&0xff) >> gamma_shift][v >> 8];
+ w = gamma_16_from_1[(v & 0xff) >>
+ gamma_shift][v >> 8];
*sp = (png_byte)((w >> 8) & 0xff);
*(sp + 1) = (png_byte)(w & 0xff);
}
v = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp];
png_composite_16(w, v, a, png_ptr->background_1.red);
if (optimize == 0)
- w = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >>
+ w = gamma_16_from_1[((w & 0xff) >> gamma_shift)][w >>
8];
*sp = (png_byte)((w >> 8) & 0xff);
*(sp + 1) = (png_byte)(w & 0xff);
v = gamma_16_to_1[*(sp + 3) >> gamma_shift][*(sp + 2)];
png_composite_16(w, v, a, png_ptr->background_1.green);
if (optimize == 0)
- w = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >>
+ w = gamma_16_from_1[((w & 0xff) >> gamma_shift)][w >>
8];
*(sp + 2) = (png_byte)((w >> 8) & 0xff);
v = gamma_16_to_1[*(sp + 5) >> gamma_shift][*(sp + 4)];
png_composite_16(w, v, a, png_ptr->background_1.blue);
if (optimize == 0)
- w = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >>
+ w = gamma_16_from_1[((w & 0xff) >> gamma_shift)][w >>
8];
*(sp + 4) = (png_byte)((w >> 8) & 0xff);
}
}
}
-#endif /* PNG_READ_BACKGROUND_SUPPORTED || PNG_READ_ALPHA_MODE_SUPPORTED */
+#endif /* READ_BACKGROUND || READ_ALPHA_MODE */
#ifdef PNG_READ_GAMMA_SUPPORTED
/* Gamma correct the image, avoiding the alpha channel. Make sure
png_debug(1, "in png_do_encode_alpha");
- if (row_info->color_type & PNG_COLOR_MASK_ALPHA)
+ if ((row_info->color_type & PNG_COLOR_MASK_ALPHA) != 0)
{
if (row_info->bit_depth == 8)
{
{
if (row_info->color_type == PNG_COLOR_TYPE_GRAY)
{
- unsigned int gray = trans_color ? trans_color->gray : 0;
+ unsigned int gray = trans_color != NULL ? trans_color->gray : 0;
if (row_info->bit_depth < 8)
{
for (i = 0; i < row_width; i++)
{
- if (*sp == gray)
+ if ((*sp & 0xffU) == gray)
*dp-- = 0;
else
dp = row + (row_info->rowbytes << 1) - 1;
for (i = 0; i < row_width; i++)
{
- if (*(sp - 1) == gray_high && *(sp) == gray_low)
+ if ((*(sp - 1) & 0xffU) == gray_high &&
+ (*(sp) & 0xffU) == gray_low)
{
*dp-- = 0;
*dp-- = 0;
row_width);
}
}
- else if (row_info->color_type == PNG_COLOR_TYPE_RGB && trans_color)
+ else if (row_info->color_type == PNG_COLOR_TYPE_RGB &&
+ trans_color != NULL)
{
if (row_info->bit_depth == 8)
{
}
}
}
-#endif /* PNG_READ_QUANTIZE_SUPPORTED */
+#endif /* READ_QUANTIZE */
/* Transform the row. The order of transformations is significant,
* and is very touchy. If you add a transformation, take care to
* demand, if necessary.
*/
if ((png_ptr->flags & PNG_FLAG_DETECT_UNINITIALIZED) != 0 &&
- !(png_ptr->flags & PNG_FLAG_ROW_INIT))
+ (png_ptr->flags & PNG_FLAG_ROW_INIT) == 0)
{
/* Application has failed to call either png_read_start_image() or
* png_read_update_info() after setting transforms that expand pixels.
}
#ifdef PNG_READ_EXPAND_SUPPORTED
- if (png_ptr->transformations & PNG_EXPAND)
+ if ((png_ptr->transformations & PNG_EXPAND) != 0)
{
if (row_info->color_type == PNG_COLOR_TYPE_PALETTE)
{
else
{
- if (png_ptr->num_trans &&
- (png_ptr->transformations & PNG_EXPAND_tRNS))
+ if (png_ptr->num_trans != 0 &&
+ (png_ptr->transformations & PNG_EXPAND_tRNS) != 0)
png_do_expand(row_info, png_ptr->row_buf + 1,
&(png_ptr->trans_color));
#endif
#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
- if ((png_ptr->transformations & PNG_STRIP_ALPHA) &&
- !(png_ptr->transformations & PNG_COMPOSE) &&
- (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
- row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA))
+ if ((png_ptr->transformations & PNG_STRIP_ALPHA) != 0 &&
+ (png_ptr->transformations & PNG_COMPOSE) == 0 &&
+ (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
+ row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA))
png_do_strip_channel(row_info, png_ptr->row_buf + 1,
0 /* at_start == false, because SWAP_ALPHA happens later */);
#endif
#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
- if (png_ptr->transformations & PNG_RGB_TO_GRAY)
+ if ((png_ptr->transformations & PNG_RGB_TO_GRAY) != 0)
{
int rgb_error =
png_do_rgb_to_gray(png_ptr, row_info,
/* If gray -> RGB, do so now only if background is non-gray; else do later
* for performance reasons
*/
- if ((png_ptr->transformations & PNG_GRAY_TO_RGB) &&
- !(png_ptr->mode & PNG_BACKGROUND_IS_GRAY))
+ if ((png_ptr->transformations & PNG_GRAY_TO_RGB) != 0 &&
+ (png_ptr->mode & PNG_BACKGROUND_IS_GRAY) == 0)
png_do_gray_to_rgb(row_info, png_ptr->row_buf + 1);
#endif
#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\
defined(PNG_READ_ALPHA_MODE_SUPPORTED)
- if (png_ptr->transformations & PNG_COMPOSE)
+ if ((png_ptr->transformations & PNG_COMPOSE) != 0)
png_do_compose(row_info, png_ptr->row_buf + 1, png_ptr);
#endif
#ifdef PNG_READ_GAMMA_SUPPORTED
- if ((png_ptr->transformations & PNG_GAMMA) &&
+ if ((png_ptr->transformations & PNG_GAMMA) != 0 &&
#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
/* Because RGB_TO_GRAY does the gamma transform. */
- !(png_ptr->transformations & PNG_RGB_TO_GRAY) &&
+ (png_ptr->transformations & PNG_RGB_TO_GRAY) == 0 &&
#endif
#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\
defined(PNG_READ_ALPHA_MODE_SUPPORTED)
/* Because PNG_COMPOSE does the gamma transform if there is something to
* do (if there is an alpha channel or transparency.)
*/
- !((png_ptr->transformations & PNG_COMPOSE) &&
+ !((png_ptr->transformations & PNG_COMPOSE) != 0 &&
((png_ptr->num_trans != 0) ||
- (png_ptr->color_type & PNG_COLOR_MASK_ALPHA))) &&
+ (png_ptr->color_type & PNG_COLOR_MASK_ALPHA) != 0)) &&
#endif
/* Because png_init_read_transformations transforms the palette, unless
* RGB_TO_GRAY will do the transform.
#endif
#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
- if ((png_ptr->transformations & PNG_STRIP_ALPHA) &&
- (png_ptr->transformations & PNG_COMPOSE) &&
- (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
- row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA))
+ if ((png_ptr->transformations & PNG_STRIP_ALPHA) != 0 &&
+ (png_ptr->transformations & PNG_COMPOSE) != 0 &&
+ (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA ||
+ row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA))
png_do_strip_channel(row_info, png_ptr->row_buf + 1,
- 0 /* at_start == false, because SWAP_ALPHA happens later */);
+ 0 /* at_start == false, because SWAP_ALPHA happens later */);
#endif
#ifdef PNG_READ_ALPHA_MODE_SUPPORTED
- if ((png_ptr->transformations & PNG_ENCODE_ALPHA) &&
- (row_info->color_type & PNG_COLOR_MASK_ALPHA))
+ if ((png_ptr->transformations & PNG_ENCODE_ALPHA) != 0 &&
+ (row_info->color_type & PNG_COLOR_MASK_ALPHA) != 0)
png_do_encode_alpha(row_info, png_ptr->row_buf + 1, png_ptr);
#endif
#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
- if (png_ptr->transformations & PNG_SCALE_16_TO_8)
+ if ((png_ptr->transformations & PNG_SCALE_16_TO_8) != 0)
png_do_scale_16_to_8(row_info, png_ptr->row_buf + 1);
#endif
* by putting the 'scale' option first if the app asks for scale (either by
* calling the API or in a TRANSFORM flag) this is what happens.
*/
- if (png_ptr->transformations & PNG_16_TO_8)
+ if ((png_ptr->transformations & PNG_16_TO_8) != 0)
png_do_chop(row_info, png_ptr->row_buf + 1);
#endif
#ifdef PNG_READ_QUANTIZE_SUPPORTED
- if (png_ptr->transformations & PNG_QUANTIZE)
+ if ((png_ptr->transformations & PNG_QUANTIZE) != 0)
{
png_do_quantize(row_info, png_ptr->row_buf + 1,
png_ptr->palette_lookup, png_ptr->quantize_index);
if (row_info->rowbytes == 0)
png_error(png_ptr, "png_do_quantize returned rowbytes=0");
}
-#endif /* PNG_READ_QUANTIZE_SUPPORTED */
+#endif /* READ_QUANTIZE */
#ifdef PNG_READ_EXPAND_16_SUPPORTED
/* Do the expansion now, after all the arithmetic has been done. Notice
* is efficient (particularly true in the case of gamma correction, where
* better accuracy results faster!)
*/
- if (png_ptr->transformations & PNG_EXPAND_16)
+ if ((png_ptr->transformations & PNG_EXPAND_16) != 0)
png_do_expand_16(row_info, png_ptr->row_buf + 1);
#endif
#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
/* NOTE: moved here in 1.5.4 (from much later in this list.) */
- if ((png_ptr->transformations & PNG_GRAY_TO_RGB) &&
- (png_ptr->mode & PNG_BACKGROUND_IS_GRAY))
+ if ((png_ptr->transformations & PNG_GRAY_TO_RGB) != 0 &&
+ (png_ptr->mode & PNG_BACKGROUND_IS_GRAY) != 0)
png_do_gray_to_rgb(row_info, png_ptr->row_buf + 1);
#endif
#ifdef PNG_READ_INVERT_SUPPORTED
- if (png_ptr->transformations & PNG_INVERT_MONO)
+ if ((png_ptr->transformations & PNG_INVERT_MONO) != 0)
png_do_invert(row_info, png_ptr->row_buf + 1);
#endif
#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
- if (png_ptr->transformations & PNG_INVERT_ALPHA)
+ if ((png_ptr->transformations & PNG_INVERT_ALPHA) != 0)
png_do_read_invert_alpha(row_info, png_ptr->row_buf + 1);
#endif
#ifdef PNG_READ_SHIFT_SUPPORTED
- if (png_ptr->transformations & PNG_SHIFT)
+ if ((png_ptr->transformations & PNG_SHIFT) != 0)
png_do_unshift(row_info, png_ptr->row_buf + 1,
&(png_ptr->shift));
#endif
#ifdef PNG_READ_PACK_SUPPORTED
- if (png_ptr->transformations & PNG_PACK)
+ if ((png_ptr->transformations & PNG_PACK) != 0)
png_do_unpack(row_info, png_ptr->row_buf + 1);
#endif
#endif
#ifdef PNG_READ_BGR_SUPPORTED
- if (png_ptr->transformations & PNG_BGR)
+ if ((png_ptr->transformations & PNG_BGR) != 0)
png_do_bgr(row_info, png_ptr->row_buf + 1);
#endif
#ifdef PNG_READ_PACKSWAP_SUPPORTED
- if (png_ptr->transformations & PNG_PACKSWAP)
+ if ((png_ptr->transformations & PNG_PACKSWAP) != 0)
png_do_packswap(row_info, png_ptr->row_buf + 1);
#endif
#ifdef PNG_READ_FILLER_SUPPORTED
- if (png_ptr->transformations & PNG_FILLER)
+ if ((png_ptr->transformations & PNG_FILLER) != 0)
png_do_read_filler(row_info, png_ptr->row_buf + 1,
(png_uint_32)png_ptr->filler, png_ptr->flags);
#endif
#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED
- if (png_ptr->transformations & PNG_SWAP_ALPHA)
+ if ((png_ptr->transformations & PNG_SWAP_ALPHA) != 0)
png_do_read_swap_alpha(row_info, png_ptr->row_buf + 1);
#endif
#ifdef PNG_READ_16BIT_SUPPORTED
#ifdef PNG_READ_SWAP_SUPPORTED
- if (png_ptr->transformations & PNG_SWAP_BYTES)
+ if ((png_ptr->transformations & PNG_SWAP_BYTES) != 0)
png_do_swap(row_info, png_ptr->row_buf + 1);
#endif
#endif
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
- if (png_ptr->transformations & PNG_USER_TRANSFORM)
- {
+ if ((png_ptr->transformations & PNG_USER_TRANSFORM) != 0)
+ {
if (png_ptr->read_user_transform_fn != NULL)
(*(png_ptr->read_user_transform_fn)) /* User read transform function */
(png_ptr, /* png_ptr */
/* png_byte pixel_depth; bits per pixel (depth*channels) */
png_ptr->row_buf + 1); /* start of pixel data for row */
#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED
- if (png_ptr->user_transform_depth)
+ if (png_ptr->user_transform_depth != 0)
row_info->bit_depth = png_ptr->user_transform_depth;
- if (png_ptr->user_transform_channels)
+ if (png_ptr->user_transform_channels != 0)
row_info->channels = png_ptr->user_transform_channels;
#endif
row_info->pixel_depth = (png_byte)(row_info->bit_depth *
#endif
}
-#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
-#endif /* PNG_READ_SUPPORTED */
+#endif /* READ_TRANSFORMS */
+#endif /* READ */
/* pngrutil.c - utilities to read a PNG file
*
- * Last changed in libpng 1.6.11 [June 5, 2014]
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.20 [December 3, 2014]
+ * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
return uval;
uval = (uval ^ 0xffffffff) + 1; /* 2's complement: -x = ~x+1 */
- return -(png_int_32)uval;
+ if ((uval & 0x80000000) == 0) /* no overflow */
+ return -(png_int_32)uval;
+ /* The following has to be safe; this function only gets called on PNG data
+ * and if we get here that data is invalid. 0 is the most safe value and
+ * if not then an attacker would surely just generate a PNG with 0 instead.
+ */
+ return 0;
}
/* Grab an unsigned 16-bit integer from a buffer in big-endian format. */
{
/* ANSI-C requires an int value to accomodate at least 16 bits so this
* works and allows the compiler not to worry about possible narrowing
- * on 32 bit systems. (Pre-ANSI systems did not make integers smaller
+ * on 32-bit systems. (Pre-ANSI systems did not make integers smaller
* than 16 bits either.)
*/
unsigned int val =
return (png_uint_16)val;
}
-#endif /* PNG_READ_INT_FUNCTIONS_SUPPORTED */
+#endif /* READ_INT_FUNCTIONS */
/* Read and check the PNG file signature */
void /* PRIVATE */
png_read_data(png_ptr, &(info_ptr->signature[num_checked]), num_to_check);
png_ptr->sig_bytes = 8;
- if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check))
+ if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check) != 0)
{
if (num_checked < 4 &&
png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4))
png_crc_read(png_ptr, tmpbuf, len);
}
- if (png_crc_error(png_ptr))
+ if (png_crc_error(png_ptr) != 0)
{
- if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name) ?
- !(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN) :
- (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_USE))
+ if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name) != 0 ?
+ (png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN) == 0 :
+ (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_USE) != 0)
{
png_chunk_warning(png_ptr, "CRC error");
}
png_uint_32 crc;
int need_crc = 1;
- if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name))
+ if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name) != 0)
{
if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) ==
(PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN))
else /* critical */
{
- if (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_IGNORE)
+ if ((png_ptr->flags & PNG_FLAG_CRC_CRITICAL_IGNORE) != 0)
need_crc = 0;
}
return buffer;
}
-#endif /* PNG_READ_iCCP|iTXt|pCAL|sCAL|sPLT|tEXt|zTXt|SEQUENTIAL_READ */
+#endif /* READ_iCCP|iTXt|pCAL|sCAL|sPLT|tEXt|zTXt|SEQUENTIAL_READ */
/* png_inflate_claim: claim the zstream for some nefarious purpose that involves
* decompression. Returns Z_OK on success, else a zlib error code. It checks
* are minimal.
*/
(void)png_safecat(msg, (sizeof msg), 4, " using zstream");
-# if PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC
- png_chunk_warning(png_ptr, msg);
- png_ptr->zowner = 0;
-# else
- png_chunk_error(png_ptr, msg);
-# endif
+#if PNG_RELEASE_BUILD
+ png_chunk_warning(png_ptr, msg);
+ png_ptr->zowner = 0;
+#else
+ png_chunk_error(png_ptr, msg);
+#endif
}
/* Implementation note: unlike 'png_deflate_claim' this internal function
*/
{
int ret; /* zlib return code */
-# if PNG_ZLIB_VERNUM >= 0x1240
+#if PNG_ZLIB_VERNUM >= 0x1240
-# if defined(PNG_SET_OPTION_SUPPORTED) && \
- defined(PNG_MAXIMUM_INFLATE_WINDOW)
- int window_bits;
+# if defined(PNG_SET_OPTION_SUPPORTED) && defined(PNG_MAXIMUM_INFLATE_WINDOW)
+ int window_bits;
- if (((png_ptr->options >> PNG_MAXIMUM_INFLATE_WINDOW) & 3) ==
- PNG_OPTION_ON)
- window_bits = 15;
+ if (((png_ptr->options >> PNG_MAXIMUM_INFLATE_WINDOW) & 3) ==
+ PNG_OPTION_ON)
+ {
+ window_bits = 15;
+ png_ptr->zstream_start = 0; /* fixed window size */
+ }
- else
- window_bits = 0;
-# else
-# define window_bits 0
-# endif
-# endif
+ else
+ {
+ window_bits = 0;
+ png_ptr->zstream_start = 1;
+ }
+# else
+# define window_bits 0
+# endif
+#endif
/* Set this for safety, just in case the previous owner left pointers to
* memory allocations.
png_ptr->zstream.next_out = NULL;
png_ptr->zstream.avail_out = 0;
- if (png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED)
+ if ((png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) != 0)
{
-# if PNG_ZLIB_VERNUM < 0x1240
- ret = inflateReset(&png_ptr->zstream);
-# else
- ret = inflateReset2(&png_ptr->zstream, window_bits);
-# endif
+#if PNG_ZLIB_VERNUM < 0x1240
+ ret = inflateReset(&png_ptr->zstream);
+#else
+ ret = inflateReset2(&png_ptr->zstream, window_bits);
+#endif
}
else
{
-# if PNG_ZLIB_VERNUM < 0x1240
- ret = inflateInit(&png_ptr->zstream);
-# else
- ret = inflateInit2(&png_ptr->zstream, window_bits);
-# endif
+#if PNG_ZLIB_VERNUM < 0x1240
+ ret = inflateInit(&png_ptr->zstream);
+#else
+ ret = inflateInit2(&png_ptr->zstream, window_bits);
+#endif
if (ret == Z_OK)
png_ptr->flags |= PNG_FLAG_ZSTREAM_INITIALIZED;
return ret;
}
-# ifdef window_bits
-# undef window_bits
-# endif
+#ifdef window_bits
+# undef window_bits
+#endif
+}
+
+#if PNG_ZLIB_VERNUM >= 0x1240
+/* Handle the start of the inflate stream if we called inflateInit2(strm,0);
+ * in this case some zlib versions skip validation of the CINFO field and, in
+ * certain circumstances, libpng may end up displaying an invalid image, in
+ * contrast to implementations that call zlib in the normal way (e.g. libpng
+ * 1.5).
+ */
+int /* PRIVATE */
+png_zlib_inflate(png_structrp png_ptr, int flush)
+{
+ if (png_ptr->zstream_start && png_ptr->zstream.avail_in > 0)
+ {
+ if ((*png_ptr->zstream.next_in >> 4) > 7)
+ {
+ png_ptr->zstream.msg = "invalid window size (libpng)";
+ return Z_DATA_ERROR;
+ }
+
+ png_ptr->zstream_start = 0;
+ }
+
+ return inflate(&png_ptr->zstream, flush);
}
+#endif /* Zlib >= 1.2.4 */
#ifdef PNG_READ_COMPRESSED_TEXT_SUPPORTED
/* png_inflate now returns zlib error codes including Z_OK and Z_STREAM_END to
* the previous chunk of input data. Tell zlib if we have reached the
* end of the output buffer.
*/
- ret = inflate(&png_ptr->zstream, avail_out > 0 ? Z_NO_FLUSH :
- (finish ? Z_FINISH : Z_SYNC_FLUSH));
+ ret = PNG_INFLATE(png_ptr, avail_out > 0 ? Z_NO_FLUSH :
+ (finish ? Z_FINISH : Z_SYNC_FLUSH));
} while (ret == Z_OK);
/* For safety kill the local buffer pointer now */
*/
png_alloc_size_t limit = PNG_SIZE_MAX;
-# ifdef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
- if (png_ptr->user_chunk_malloc_max > 0 &&
- png_ptr->user_chunk_malloc_max < limit)
- limit = png_ptr->user_chunk_malloc_max;
-# elif PNG_USER_CHUNK_MALLOC_MAX > 0
- if (PNG_USER_CHUNK_MALLOC_MAX < limit)
- limit = PNG_USER_CHUNK_MALLOC_MAX;
-# endif
+# ifdef PNG_SET_USER_LIMITS_SUPPORTED
+ if (png_ptr->user_chunk_malloc_max > 0 &&
+ png_ptr->user_chunk_malloc_max < limit)
+ limit = png_ptr->user_chunk_malloc_max;
+# elif PNG_USER_CHUNK_MALLOC_MAX > 0
+ if (PNG_USER_CHUNK_MALLOC_MAX < limit)
+ limit = PNG_USER_CHUNK_MALLOC_MAX;
+# endif
if (limit >= prefix_size + (terminate != 0))
{
return Z_MEM_ERROR;
}
}
-#endif /* PNG_READ_COMPRESSED_TEXT_SUPPORTED */
+#endif /* READ_COMPRESSED_TEXT */
#ifdef PNG_READ_iCCP_SUPPORTED
/* Perform a partial read and decompress, producing 'avail_out' bytes and
* the available output is produced; this allows reading of truncated
* streams.
*/
- ret = inflate(&png_ptr->zstream,
+ ret = PNG_INFLATE(png_ptr,
*chunk_bytes > 0 ? Z_NO_FLUSH : (finish ? Z_FINISH : Z_SYNC_FLUSH));
}
while (ret == Z_OK && (*out_size > 0 || png_ptr->zstream.avail_out > 0));
#endif
/* Read and check the IDHR chunk */
+
void /* PRIVATE */
png_handle_IHDR(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
{
png_debug(1, "in png_handle_IHDR");
- if (png_ptr->mode & PNG_HAVE_IHDR)
+ if ((png_ptr->mode & PNG_HAVE_IHDR) != 0)
png_chunk_error(png_ptr, "out of place");
/* Check the length */
}
/* Set up other useful info */
- png_ptr->pixel_depth = (png_byte)(png_ptr->bit_depth *
- png_ptr->channels);
+ png_ptr->pixel_depth = (png_byte)(png_ptr->bit_depth * png_ptr->channels);
png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth, png_ptr->width);
png_debug1(3, "bit_depth = %d", png_ptr->bit_depth);
png_debug1(3, "channels = %d", png_ptr->channels);
png_handle_PLTE(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
{
png_color palette[PNG_MAX_PALETTE_LENGTH];
- int num, i;
+ int max_palette_length, num, i;
#ifdef PNG_POINTER_INDEXING_SUPPORTED
png_colorp pal_ptr;
#endif
png_debug(1, "in png_handle_PLTE");
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
/* Moved to before the 'after IDAT' check below because otherwise duplicate
* than one PLTE, the error is not treated as benign, so this check trumps
* the requirement that PLTE appears before IDAT.)
*/
- else if (png_ptr->mode & PNG_HAVE_PLTE)
+ else if ((png_ptr->mode & PNG_HAVE_PLTE) != 0)
png_chunk_error(png_ptr, "duplicate");
- else if (png_ptr->mode & PNG_HAVE_IDAT)
+ else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
{
/* This is benign because the non-benign error happened before, when an
* IDAT was encountered in a color-mapped image with no PLTE.
png_ptr->mode |= PNG_HAVE_PLTE;
- if (!(png_ptr->color_type & PNG_COLOR_MASK_COLOR))
+ if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) == 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "ignored in grayscale PNG");
/* The cast is safe because 'length' is less than 3*PNG_MAX_PALETTE_LENGTH */
num = (int)length / 3;
+ /* If the palette has 256 or fewer entries but is too large for the bit
+ * depth, we don't issue an error, to preserve the behavior of previous
+ * libpng versions. We silently truncate the unused extra palette entries
+ * here.
+ */
+ if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
+ max_palette_length = (1 << png_ptr->bit_depth);
+ else
+ max_palette_length = PNG_MAX_PALETTE_LENGTH;
+
+ if (num > max_palette_length)
+ num = max_palette_length;
+
#ifdef PNG_POINTER_INDEXING_SUPPORTED
for (i = 0, pal_ptr = palette; i < num; i++, pal_ptr++)
{
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
#endif
{
- png_crc_finish(png_ptr, 0);
+ png_crc_finish(png_ptr, (int) length - num * 3);
}
#ifndef PNG_READ_OPT_PLTE_SUPPORTED
- else if (png_crc_error(png_ptr)) /* Only if we have a CRC error */
+ else if (png_crc_error(png_ptr) != 0) /* Only if we have a CRC error */
{
/* If we don't want to use the data from an ancillary chunk,
* we have two options: an error abort, or a warning and we
* chunk type to determine whether to check the ancillary or the critical
* flags.
*/
- if (!(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_USE))
+ if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_USE) == 0)
{
- if (png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN)
+ if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN) != 0)
return;
else
}
/* Otherwise, we (optionally) emit a warning and use the chunk. */
- else if (!(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN))
+ else if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN) == 0)
png_chunk_warning(png_ptr, "CRC error");
}
#endif
*/
#ifdef PNG_READ_tRNS_SUPPORTED
if (png_ptr->num_trans > 0 ||
- (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS) != 0))
+ (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS) != 0))
{
/* Cancel this because otherwise it would be used if the transforms
* require it. Don't cancel the 'valid' flag because this would prevent
{
png_debug(1, "in png_handle_IEND");
- if (!(png_ptr->mode & PNG_HAVE_IHDR) || !(png_ptr->mode & PNG_HAVE_IDAT))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0 ||
+ (png_ptr->mode & PNG_HAVE_IDAT) == 0)
png_chunk_error(png_ptr, "out of place");
png_ptr->mode |= (PNG_AFTER_IDAT | PNG_HAVE_IEND);
png_debug(1, "in png_handle_gAMA");
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- else if (png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE))
+ else if ((png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "out of place");
png_crc_read(png_ptr, buf, 4);
- if (png_crc_finish(png_ptr, 0))
+ if (png_crc_finish(png_ptr, 0) != 0)
return;
igamma = png_get_fixed_point(NULL, buf);
png_debug(1, "in png_handle_sBIT");
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- else if (png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE))
+ else if ((png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "out of place");
return;
}
- if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT))
+ if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "duplicate");
buf[0] = buf[1] = buf[2] = buf[3] = sample_depth;
png_crc_read(png_ptr, buf, truelen);
- if (png_crc_finish(png_ptr, 0))
+ if (png_crc_finish(png_ptr, 0) != 0)
return;
for (i=0; i<truelen; ++i)
+ {
if (buf[i] == 0 || buf[i] > sample_depth)
{
png_chunk_benign_error(png_ptr, "invalid");
return;
}
+ }
- if (png_ptr->color_type & PNG_COLOR_MASK_COLOR)
+ if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) != 0)
{
png_ptr->sig_bit.red = buf[0];
png_ptr->sig_bit.green = buf[1];
png_debug(1, "in png_handle_cHRM");
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- else if (png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE))
+ else if ((png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "out of place");
png_crc_read(png_ptr, buf, 32);
- if (png_crc_finish(png_ptr, 0))
+ if (png_crc_finish(png_ptr, 0) != 0)
return;
xy.whitex = png_get_fixed_point(NULL, buf);
}
/* If a colorspace error has already been output skip this chunk */
- if (png_ptr->colorspace.flags & PNG_COLORSPACE_INVALID)
+ if ((png_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) != 0)
return;
- if (png_ptr->colorspace.flags & PNG_COLORSPACE_FROM_cHRM)
+ if ((png_ptr->colorspace.flags & PNG_COLORSPACE_FROM_cHRM) != 0)
{
png_ptr->colorspace.flags |= PNG_COLORSPACE_INVALID;
png_colorspace_sync(png_ptr, info_ptr);
png_debug(1, "in png_handle_sRGB");
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- else if (png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE))
+ else if ((png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "out of place");
png_crc_read(png_ptr, &intent, 1);
- if (png_crc_finish(png_ptr, 0))
+ if (png_crc_finish(png_ptr, 0) != 0)
return;
/* If a colorspace error has already been output skip this chunk */
- if (png_ptr->colorspace.flags & PNG_COLORSPACE_INVALID)
+ if ((png_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) != 0)
return;
/* Only one sRGB or iCCP chunk is allowed, use the HAVE_INTENT flag to detect
* this.
*/
- if (png_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_INTENT)
+ if ((png_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_INTENT) != 0)
{
png_ptr->colorspace.flags |= PNG_COLORSPACE_INVALID;
png_colorspace_sync(png_ptr, info_ptr);
(void)png_colorspace_set_sRGB(png_ptr, &png_ptr->colorspace, intent);
png_colorspace_sync(png_ptr, info_ptr);
}
-#endif /* PNG_READ_sRGB_SUPPORTED */
+#endif /* READ_sRGB */
#ifdef PNG_READ_iCCP_SUPPORTED
void /* PRIVATE */
png_debug(1, "in png_handle_iCCP");
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- else if (png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE))
+ else if ((png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "out of place");
}
/* If a colorspace error has already been output skip this chunk */
- if (png_ptr->colorspace.flags & PNG_COLORSPACE_INVALID)
+ if ((png_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) != 0)
{
png_crc_finish(png_ptr, length);
return;
png_get_uint_32(profile_header);
if (png_icc_check_length(png_ptr, &png_ptr->colorspace,
- keyword, profile_length))
+ keyword, profile_length) != 0)
{
/* The length is apparently ok, so we can check the 132
* byte header.
*/
if (png_icc_check_header(png_ptr, &png_ptr->colorspace,
keyword, profile_length, profile_header,
- png_ptr->color_type))
+ png_ptr->color_type) != 0)
{
/* Now read the tag table; a variable size buffer is
* needed at this point, allocate one for the whole
{
if (png_icc_check_tag_table(png_ptr,
&png_ptr->colorspace, keyword, profile_length,
- profile))
+ profile) != 0)
{
/* The profile has been validated for basic
* security issues, so read the whole thing in.
finished = 1;
# ifdef PNG_sRGB_SUPPORTED
- /* Check for a match against sRGB */
- png_icc_set_sRGB(png_ptr,
- &png_ptr->colorspace, profile,
- png_ptr->zstream.adler);
+ /* Check for a match against sRGB */
+ png_icc_set_sRGB(png_ptr,
+ &png_ptr->colorspace, profile,
+ png_ptr->zstream.adler);
# endif
/* Steal the profile for info_ptr. */
else if (size > 0)
errmsg = "truncated";
+#ifndef __COVERITY__
else
errmsg = png_ptr->zstream.msg;
+#endif
}
/* else png_icc_check_tag_table output an error */
if (errmsg != NULL) /* else already output */
png_chunk_benign_error(png_ptr, errmsg);
}
-#endif /* PNG_READ_iCCP_SUPPORTED */
+#endif /* READ_iCCP */
#ifdef PNG_READ_sPLT_SUPPORTED
void /* PRIVATE */
}
#endif
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- else if (png_ptr->mode & PNG_HAVE_IDAT)
+ else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "out of place");
*/
png_crc_read(png_ptr, buffer, length);
- if (png_crc_finish(png_ptr, skip))
+ if (png_crc_finish(png_ptr, skip) != 0)
return;
buffer[length] = 0;
++entry_start;
/* A sample depth should follow the separator, and we should be on it */
- if (entry_start > buffer + length - 2)
+ if (length < 2U || entry_start > buffer + (length - 2U))
{
png_warning(png_ptr, "malformed sPLT chunk");
return;
data_length = length - (png_uint_32)(entry_start - buffer);
/* Integrity-check the data length */
- if (data_length % entry_size)
+ if ((data_length % entry_size) != 0)
{
png_warning(png_ptr, "sPLT chunk has bad length");
return;
if (dl > max_dl)
{
- png_warning(png_ptr, "sPLT chunk too long");
- return;
+ png_warning(png_ptr, "sPLT chunk too long");
+ return;
}
new_palette.nentries = (png_int_32)(data_length / entry_size);
if (new_palette.entries == NULL)
{
- png_warning(png_ptr, "sPLT chunk requires too much memory");
- return;
+ png_warning(png_ptr, "sPLT chunk requires too much memory");
+ return;
}
#ifdef PNG_POINTER_INDEXING_SUPPORTED
png_free(png_ptr, new_palette.entries);
}
-#endif /* PNG_READ_sPLT_SUPPORTED */
+#endif /* READ_sPLT */
#ifdef PNG_READ_tRNS_SUPPORTED
void /* PRIVATE */
png_debug(1, "in png_handle_tRNS");
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- else if (png_ptr->mode & PNG_HAVE_IDAT)
+ else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "out of place");
return;
}
- else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS))
+ else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "duplicate");
else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
{
- if (!(png_ptr->mode & PNG_HAVE_PLTE))
+ if ((png_ptr->mode & PNG_HAVE_PLTE) == 0)
{
/* TODO: is this actually an error in the ISO spec? */
png_crc_finish(png_ptr, length);
return;
}
- if (length > png_ptr->num_palette || length > PNG_MAX_PALETTE_LENGTH ||
+ if (length > (unsigned int) png_ptr->num_palette ||
+ length > (unsigned int) PNG_MAX_PALETTE_LENGTH ||
length == 0)
{
png_crc_finish(png_ptr, length);
return;
}
- if (png_crc_finish(png_ptr, 0))
+ if (png_crc_finish(png_ptr, 0) != 0)
{
png_ptr->num_trans = 0;
return;
png_debug(1, "in png_handle_bKGD");
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- else if ((png_ptr->mode & PNG_HAVE_IDAT) ||
- (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
- !(png_ptr->mode & PNG_HAVE_PLTE)))
+ else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0 ||
+ (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
+ (png_ptr->mode & PNG_HAVE_PLTE) == 0))
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "out of place");
return;
}
- else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD))
+ else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "duplicate");
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
truelen = 1;
- else if (png_ptr->color_type & PNG_COLOR_MASK_COLOR)
+ else if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) != 0)
truelen = 6;
else
png_crc_read(png_ptr, buf, truelen);
- if (png_crc_finish(png_ptr, 0))
+ if (png_crc_finish(png_ptr, 0) != 0)
return;
/* We convert the index value into RGB components so that we can allow
{
background.index = buf[0];
- if (info_ptr && info_ptr->num_palette)
+ if (info_ptr != NULL && info_ptr->num_palette != 0)
{
if (buf[0] >= info_ptr->num_palette)
{
background.gray = 0;
}
- else if (!(png_ptr->color_type & PNG_COLOR_MASK_COLOR)) /* GRAY */
+ else if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) == 0) /* GRAY */
{
background.index = 0;
background.red =
png_debug(1, "in png_handle_hIST");
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- else if ((png_ptr->mode & PNG_HAVE_IDAT) || !(png_ptr->mode & PNG_HAVE_PLTE))
+ else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0 ||
+ (png_ptr->mode & PNG_HAVE_PLTE) == 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "out of place");
return;
}
- else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST))
+ else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "duplicate");
num = length / 2 ;
- if (num != png_ptr->num_palette || num > PNG_MAX_PALETTE_LENGTH)
+ if (num != (unsigned int) png_ptr->num_palette ||
+ num > (unsigned int) PNG_MAX_PALETTE_LENGTH)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "invalid");
readbuf[i] = png_get_uint_16(buf);
}
- if (png_crc_finish(png_ptr, 0))
+ if (png_crc_finish(png_ptr, 0) != 0)
return;
png_set_hIST(png_ptr, info_ptr, readbuf);
png_debug(1, "in png_handle_pHYs");
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- else if (png_ptr->mode & PNG_HAVE_IDAT)
+ else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "out of place");
return;
}
- else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs))
+ else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "duplicate");
png_crc_read(png_ptr, buf, 9);
- if (png_crc_finish(png_ptr, 0))
+ if (png_crc_finish(png_ptr, 0) != 0)
return;
res_x = png_get_uint_32(buf);
png_debug(1, "in png_handle_oFFs");
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- else if (png_ptr->mode & PNG_HAVE_IDAT)
+ else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "out of place");
return;
}
- else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs))
+ else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "duplicate");
png_crc_read(png_ptr, buf, 9);
- if (png_crc_finish(png_ptr, 0))
+ if (png_crc_finish(png_ptr, 0) != 0)
return;
offset_x = png_get_int_32(buf);
png_debug(1, "in png_handle_pCAL");
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- else if (png_ptr->mode & PNG_HAVE_IDAT)
+ else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "out of place");
return;
}
- else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_pCAL))
+ else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_pCAL) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "duplicate");
png_crc_read(png_ptr, buffer, length);
- if (png_crc_finish(png_ptr, 0))
+ if (png_crc_finish(png_ptr, 0) != 0)
return;
buffer[length] = 0; /* Null terminate the last string */
/* We need to have at least 12 bytes after the purpose string
* in order to get the parameter information.
*/
- if (endptr <= buf + 12)
+ if (endptr - buf <= 12)
{
png_chunk_benign_error(png_ptr, "invalid");
return;
png_debug(1, "in png_handle_sCAL");
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- else if (png_ptr->mode & PNG_HAVE_IDAT)
+ else if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "out of place");
return;
}
- else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sCAL))
+ else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sCAL) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "duplicate");
png_crc_read(png_ptr, buffer, length);
buffer[length] = 0; /* Null terminate the last string */
- if (png_crc_finish(png_ptr, 0))
+ if (png_crc_finish(png_ptr, 0) != 0)
return;
/* Validate the unit. */
i = 1;
state = 0;
- if (!png_check_fp_number((png_const_charp)buffer, length, &state, &i) ||
+ if (png_check_fp_number((png_const_charp)buffer, length, &state, &i) == 0 ||
i >= length || buffer[i++] != 0)
png_chunk_benign_error(png_ptr, "bad width format");
- else if (!PNG_FP_IS_POSITIVE(state))
+ else if (PNG_FP_IS_POSITIVE(state) == 0)
png_chunk_benign_error(png_ptr, "non-positive width");
else
png_size_t heighti = i;
state = 0;
- if (!png_check_fp_number((png_const_charp)buffer, length, &state, &i) ||
- i != length)
+ if (png_check_fp_number((png_const_charp)buffer, length,
+ &state, &i) == 0 || i != length)
png_chunk_benign_error(png_ptr, "bad height format");
- else if (!PNG_FP_IS_POSITIVE(state))
+ else if (PNG_FP_IS_POSITIVE(state) == 0)
png_chunk_benign_error(png_ptr, "non-positive height");
else
png_debug(1, "in png_handle_tIME");
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tIME))
+ else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tIME) != 0)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "duplicate");
return;
}
- if (png_ptr->mode & PNG_HAVE_IDAT)
+ if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
png_ptr->mode |= PNG_AFTER_IDAT;
if (length != 7)
png_crc_read(png_ptr, buf, 7);
- if (png_crc_finish(png_ptr, 0))
+ if (png_crc_finish(png_ptr, 0) != 0)
return;
mod_time.second = buf[6];
}
#endif
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- if (png_ptr->mode & PNG_HAVE_IDAT)
+ if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
png_ptr->mode |= PNG_AFTER_IDAT;
#ifdef PNG_MAX_MALLOC_64K
png_crc_read(png_ptr, buffer, length);
- if (png_crc_finish(png_ptr, skip))
+ if (png_crc_finish(png_ptr, skip) != 0)
return;
key = (png_charp)buffer;
text_info.text = text;
text_info.text_length = strlen(text);
- if (png_set_text_2(png_ptr, info_ptr, &text_info, 1))
+ if (png_set_text_2(png_ptr, info_ptr, &text_info, 1) != 0)
png_warning(png_ptr, "Insufficient memory to process text chunk");
}
#endif
}
#endif
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- if (png_ptr->mode & PNG_HAVE_IDAT)
+ if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
png_ptr->mode |= PNG_AFTER_IDAT;
buffer = png_read_buffer(png_ptr, length, 2/*silent*/);
png_crc_read(png_ptr, buffer, length);
- if (png_crc_finish(png_ptr, 0))
+ if (png_crc_finish(png_ptr, 0) != 0)
return;
/* TODO: also check that the keyword contents match the spec! */
text.lang = NULL;
text.lang_key = NULL;
- if (png_set_text_2(png_ptr, info_ptr, &text, 1))
+ if (png_set_text_2(png_ptr, info_ptr, &text, 1) != 0)
errmsg = "insufficient memory";
}
}
#endif
- if (!(png_ptr->mode & PNG_HAVE_IHDR))
+ if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
png_chunk_error(png_ptr, "missing IHDR");
- if (png_ptr->mode & PNG_HAVE_IDAT)
+ if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
png_ptr->mode |= PNG_AFTER_IDAT;
buffer = png_read_buffer(png_ptr, length+1, 1/*warn*/);
png_crc_read(png_ptr, buffer, length);
- if (png_crc_finish(png_ptr, 0))
+ if (png_crc_finish(png_ptr, 0) != 0)
return;
/* First the keyword. */
*/
++prefix_length;
- if (!compressed && prefix_length <= length)
+ if (compressed == 0 && prefix_length <= length)
uncompressed_length = length - prefix_length;
- else if (compressed && prefix_length < length)
+ else if (compressed != 0 && prefix_length < length)
{
uncompressed_length = PNG_SIZE_MAX;
buffer[uncompressed_length+prefix_length] = 0;
- if (compressed != 0)
+ if (compressed == 0)
text.compression = PNG_ITXT_COMPRESSION_NONE;
else
text.text_length = 0;
text.itxt_length = uncompressed_length;
- if (png_set_text_2(png_ptr, info_ptr, &text, 1))
+ if (png_set_text_2(png_ptr, info_ptr, &text, 1) != 0)
errmsg = "insufficient memory";
}
}
png_ptr->unknown_chunk.data = NULL;
}
-# ifdef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
- if (png_ptr->user_chunk_malloc_max > 0 &&
- png_ptr->user_chunk_malloc_max < limit)
- limit = png_ptr->user_chunk_malloc_max;
+# ifdef PNG_SET_USER_LIMITS_SUPPORTED
+ if (png_ptr->user_chunk_malloc_max > 0 &&
+ png_ptr->user_chunk_malloc_max < limit)
+ limit = png_ptr->user_chunk_malloc_max;
# elif PNG_USER_CHUNK_MALLOC_MAX > 0
- if (PNG_USER_CHUNK_MALLOC_MAX < limit)
- limit = PNG_USER_CHUNK_MALLOC_MAX;
+ if (PNG_USER_CHUNK_MALLOC_MAX < limit)
+ limit = PNG_USER_CHUNK_MALLOC_MAX;
# endif
if (length <= limit)
return 1;
}
}
-#endif /* PNG_READ_UNKNOWN_CHUNKS_SUPPORTED */
+#endif /* READ_UNKNOWN_CHUNKS */
/* Handle an unknown, or known but disabled, chunk */
void /* PRIVATE */
*/
# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
# ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
- keep = png_chunk_unknown_handling(png_ptr, png_ptr->chunk_name);
+ keep = png_chunk_unknown_handling(png_ptr, png_ptr->chunk_name);
# endif
# endif
* PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
*/
# ifdef PNG_READ_USER_CHUNKS_SUPPORTED
- /* The user callback takes precedence over the chunk keep value, but the
- * keep value is still required to validate a save of a critical chunk.
- */
- if (png_ptr->read_user_chunk_fn != NULL)
+ /* The user callback takes precedence over the chunk keep value, but the
+ * keep value is still required to validate a save of a critical chunk.
+ */
+ if (png_ptr->read_user_chunk_fn != NULL)
+ {
+ if (png_cache_unknown_chunk(png_ptr, length) != 0)
{
- if (png_cache_unknown_chunk(png_ptr, length))
+ /* Callback to user unknown chunk handler */
+ int ret = (*(png_ptr->read_user_chunk_fn))(png_ptr,
+ &png_ptr->unknown_chunk);
+
+ /* ret is:
+ * negative: An error occurred; png_chunk_error will be called.
+ * zero: The chunk was not handled, the chunk will be discarded
+ * unless png_set_keep_unknown_chunks has been used to set
+ * a 'keep' behavior for this particular chunk, in which
+ * case that will be used. A critical chunk will cause an
+ * error at this point unless it is to be saved.
+ * positive: The chunk was handled, libpng will ignore/discard it.
+ */
+ if (ret < 0)
+ png_chunk_error(png_ptr, "error in user chunk");
+
+ else if (ret == 0)
{
- /* Callback to user unknown chunk handler */
- int ret = (*(png_ptr->read_user_chunk_fn))(png_ptr,
- &png_ptr->unknown_chunk);
-
- /* ret is:
- * negative: An error occured, png_chunk_error will be called.
- * zero: The chunk was not handled, the chunk will be discarded
- * unless png_set_keep_unknown_chunks has been used to set
- * a 'keep' behavior for this particular chunk, in which
- * case that will be used. A critical chunk will cause an
- * error at this point unless it is to be saved.
- * positive: The chunk was handled, libpng will ignore/discard it.
+ /* If the keep value is 'default' or 'never' override it, but
+ * still error out on critical chunks unless the keep value is
+ * 'always' While this is weird it is the behavior in 1.4.12.
+ * A possible improvement would be to obey the value set for the
+ * chunk, but this would be an API change that would probably
+ * damage some applications.
+ *
+ * The png_app_warning below catches the case that matters, where
+ * the application has not set specific save or ignore for this
+ * chunk or global save or ignore.
*/
- if (ret < 0)
- png_chunk_error(png_ptr, "error in user chunk");
-
- else if (ret == 0)
+ if (keep < PNG_HANDLE_CHUNK_IF_SAFE)
{
- /* If the keep value is 'default' or 'never' override it, but
- * still error out on critical chunks unless the keep value is
- * 'always' While this is weird it is the behavior in 1.4.12.
- * A possible improvement would be to obey the value set for the
- * chunk, but this would be an API change that would probably
- * damage some applications.
- *
- * The png_app_warning below catches the case that matters, where
- * the application has not set specific save or ignore for this
- * chunk or global save or ignore.
- */
- if (keep < PNG_HANDLE_CHUNK_IF_SAFE)
+# ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
+ if (png_ptr->unknown_default < PNG_HANDLE_CHUNK_IF_SAFE)
{
-# ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
- if (png_ptr->unknown_default < PNG_HANDLE_CHUNK_IF_SAFE)
- {
- png_chunk_warning(png_ptr, "Saving unknown chunk:");
- png_app_warning(png_ptr,
- "forcing save of an unhandled chunk;"
- " please call png_set_keep_unknown_chunks");
- /* with keep = PNG_HANDLE_CHUNK_IF_SAFE */
- }
-# endif
- keep = PNG_HANDLE_CHUNK_IF_SAFE;
+ png_chunk_warning(png_ptr, "Saving unknown chunk:");
+ png_app_warning(png_ptr,
+ "forcing save of an unhandled chunk;"
+ " please call png_set_keep_unknown_chunks");
+ /* with keep = PNG_HANDLE_CHUNK_IF_SAFE */
}
- }
-
- else /* chunk was handled */
- {
- handled = 1;
- /* Critical chunks can be safely discarded at this point. */
- keep = PNG_HANDLE_CHUNK_NEVER;
+# endif
+ keep = PNG_HANDLE_CHUNK_IF_SAFE;
}
}
- else
- keep = PNG_HANDLE_CHUNK_NEVER; /* insufficient memory */
+ else /* chunk was handled */
+ {
+ handled = 1;
+ /* Critical chunks can be safely discarded at this point. */
+ keep = PNG_HANDLE_CHUNK_NEVER;
+ }
}
else
- /* Use the SAVE_UNKNOWN_CHUNKS code or skip the chunk */
-# endif /* PNG_READ_USER_CHUNKS_SUPPORTED */
+ keep = PNG_HANDLE_CHUNK_NEVER; /* insufficient memory */
+ }
-# ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
- {
- /* keep is currently just the per-chunk setting, if there was no
- * setting change it to the global default now (not that this may
- * still be AS_DEFAULT) then obtain the cache of the chunk if required,
- * if not simply skip the chunk.
- */
- if (keep == PNG_HANDLE_CHUNK_AS_DEFAULT)
- keep = png_ptr->unknown_default;
+ else
+ /* Use the SAVE_UNKNOWN_CHUNKS code or skip the chunk */
+# endif /* READ_USER_CHUNKS */
- if (keep == PNG_HANDLE_CHUNK_ALWAYS ||
- (keep == PNG_HANDLE_CHUNK_IF_SAFE &&
- PNG_CHUNK_ANCILLARY(png_ptr->chunk_name)))
- {
- if (!png_cache_unknown_chunk(png_ptr, length))
- keep = PNG_HANDLE_CHUNK_NEVER;
- }
+# ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
+ {
+ /* keep is currently just the per-chunk setting, if there was no
+ * setting change it to the global default now (not that this may
+ * still be AS_DEFAULT) then obtain the cache of the chunk if required,
+ * if not simply skip the chunk.
+ */
+ if (keep == PNG_HANDLE_CHUNK_AS_DEFAULT)
+ keep = png_ptr->unknown_default;
- else
- png_crc_finish(png_ptr, length);
+ if (keep == PNG_HANDLE_CHUNK_ALWAYS ||
+ (keep == PNG_HANDLE_CHUNK_IF_SAFE &&
+ PNG_CHUNK_ANCILLARY(png_ptr->chunk_name)))
+ {
+ if (png_cache_unknown_chunk(png_ptr, length) == 0)
+ keep = PNG_HANDLE_CHUNK_NEVER;
}
+
+ else
+ png_crc_finish(png_ptr, length);
+ }
# else
# ifndef PNG_READ_USER_CHUNKS_SUPPORTED
# error no method to support READ_UNKNOWN_CHUNKS
# endif
- {
- /* If here there is no read callback pointer set and no support is
- * compiled in to just save the unknown chunks, so simply skip this
- * chunk. If 'keep' is something other than AS_DEFAULT or NEVER then
- * the app has erroneously asked for unknown chunk saving when there
- * is no support.
- */
- if (keep > PNG_HANDLE_CHUNK_NEVER)
- png_app_error(png_ptr, "no unknown chunk support available");
+ {
+ /* If here there is no read callback pointer set and no support is
+ * compiled in to just save the unknown chunks, so simply skip this
+ * chunk. If 'keep' is something other than AS_DEFAULT or NEVER then
+ * the app has erroneously asked for unknown chunk saving when there
+ * is no support.
+ */
+ if (keep > PNG_HANDLE_CHUNK_NEVER)
+ png_app_error(png_ptr, "no unknown chunk support available");
- png_crc_finish(png_ptr, length);
- }
+ png_crc_finish(png_ptr, length);
+ }
# endif
# ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
- /* Now store the chunk in the chunk list if appropriate, and if the limits
- * permit it.
- */
- if (keep == PNG_HANDLE_CHUNK_ALWAYS ||
- (keep == PNG_HANDLE_CHUNK_IF_SAFE &&
- PNG_CHUNK_ANCILLARY(png_ptr->chunk_name)))
- {
-# ifdef PNG_USER_LIMITS_SUPPORTED
- switch (png_ptr->user_chunk_cache_max)
- {
- case 2:
- png_ptr->user_chunk_cache_max = 1;
- png_chunk_benign_error(png_ptr, "no space in chunk cache");
- /* FALL THROUGH */
- case 1:
- /* NOTE: prior to 1.6.0 this case resulted in an unknown critical
- * chunk being skipped, now there will be a hard error below.
- */
- break;
-
- default: /* not at limit */
- --(png_ptr->user_chunk_cache_max);
- /* FALL THROUGH */
- case 0: /* no limit */
-# endif /* PNG_USER_LIMITS_SUPPORTED */
- /* Here when the limit isn't reached or when limits are compiled
- * out; store the chunk.
- */
- png_set_unknown_chunks(png_ptr, info_ptr,
- &png_ptr->unknown_chunk, 1);
- handled = 1;
+ /* Now store the chunk in the chunk list if appropriate, and if the limits
+ * permit it.
+ */
+ if (keep == PNG_HANDLE_CHUNK_ALWAYS ||
+ (keep == PNG_HANDLE_CHUNK_IF_SAFE &&
+ PNG_CHUNK_ANCILLARY(png_ptr->chunk_name)))
+ {
# ifdef PNG_USER_LIMITS_SUPPORTED
- break;
- }
-# endif
+ switch (png_ptr->user_chunk_cache_max)
+ {
+ case 2:
+ png_ptr->user_chunk_cache_max = 1;
+ png_chunk_benign_error(png_ptr, "no space in chunk cache");
+ /* FALL THROUGH */
+ case 1:
+ /* NOTE: prior to 1.6.0 this case resulted in an unknown critical
+ * chunk being skipped, now there will be a hard error below.
+ */
+ break;
+
+ default: /* not at limit */
+ --(png_ptr->user_chunk_cache_max);
+ /* FALL THROUGH */
+ case 0: /* no limit */
+# endif /* USER_LIMITS */
+ /* Here when the limit isn't reached or when limits are compiled
+ * out; store the chunk.
+ */
+ png_set_unknown_chunks(png_ptr, info_ptr,
+ &png_ptr->unknown_chunk, 1);
+ handled = 1;
+# ifdef PNG_USER_LIMITS_SUPPORTED
+ break;
}
+# endif
+ }
# else /* no store support: the chunk must be handled by the user callback */
- PNG_UNUSED(info_ptr)
+ PNG_UNUSED(info_ptr)
# endif
/* Regardless of the error handling below the cached data (if any) can be
png_crc_finish(png_ptr, length);
PNG_UNUSED(info_ptr)
PNG_UNUSED(keep)
-#endif /* !PNG_READ_UNKNOWN_CHUNKS_SUPPORTED */
+#endif /* !READ_UNKNOWN_CHUNKS */
/* Check for unhandled critical chunks */
- if (!handled && PNG_CHUNK_CRITICAL(png_ptr->chunk_name))
+ if (handled == 0 && PNG_CHUNK_CRITICAL(png_ptr->chunk_name))
png_chunk_error(png_ptr, "unhandled critical chunk");
}
{
unsigned int pixel_depth = png_ptr->transformed_pixel_depth;
png_const_bytep sp = png_ptr->row_buf + 1;
- png_uint_32 row_width = png_ptr->width;
+ png_alloc_size_t row_width = png_ptr->width;
unsigned int pass = png_ptr->pass;
png_bytep end_ptr = 0;
png_byte end_byte = 0;
end_ptr = dp + PNG_ROWBYTES(pixel_depth, row_width) - 1;
end_byte = *end_ptr;
# ifdef PNG_READ_PACKSWAP_SUPPORTED
- if (png_ptr->transformations & PNG_PACKSWAP) /* little-endian byte */
- end_mask = 0xff << end_mask;
+ if ((png_ptr->transformations & PNG_PACKSWAP) != 0)
+ /* little-endian byte */
+ end_mask = 0xff << end_mask;
- else /* big-endian byte */
+ else /* big-endian byte */
# endif
- end_mask = 0xff >> end_mask;
+ end_mask = 0xff >> end_mask;
/* end_mask is now the bits to *keep* from the destination row */
}
* pass.
*/
#ifdef PNG_READ_INTERLACING_SUPPORTED
- if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE) &&
- pass < 6 && (display == 0 ||
- /* The following copies everything for 'display' on passes 0, 2 and 4. */
- (display == 1 && (pass & 1) != 0)))
+ if (png_ptr->interlaced != 0 &&
+ (png_ptr->transformations & PNG_INTERLACE) != 0 &&
+ pass < 6 && (display == 0 ||
+ /* The following copies everything for 'display' on passes 0, 2 and 4. */
+ (display == 1 && (pass & 1) != 0)))
{
/* Narrow images may have no bits in a pass; the caller should handle
* this, but this test is cheap:
*/
# define MASK(pass,depth,display,png)\
((display)?B_MASK(pass,depth,png):S_MASK(pass,depth,png))
-#endif /* !PNG_USE_COMPILE_TIME_MASKS */
+#endif /* !USE_COMPILE_TIME_MASKS */
/* Use the appropriate mask to copy the required bits. In some cases
* the byte mask will be 0 or 0xff; optimize these cases. row_width is
png_uint_32 mask;
# ifdef PNG_READ_PACKSWAP_SUPPORTED
- if (png_ptr->transformations & PNG_PACKSWAP)
- mask = MASK(pass, pixel_depth, display, 0);
+ if ((png_ptr->transformations & PNG_PACKSWAP) != 0)
+ mask = MASK(pass, pixel_depth, display, 0);
- else
+ else
# endif
- mask = MASK(pass, pixel_depth, display, 1);
+ mask = MASK(pass, pixel_depth, display, 1);
for (;;)
{
/* But don't allow this number to exceed the actual row width. */
if (bytes_to_copy > row_width)
- bytes_to_copy = row_width;
+ bytes_to_copy = (unsigned int)/*SAFE*/row_width;
}
else /* normal row; Adam7 only ever gives us one pixel to copy. */
/* This can only be the RGB case, so each copy is exactly one
* pixel and it is not necessary to check for a partial copy.
*/
- for(;;)
+ for (;;)
{
dp[0] = sp[0], dp[1] = sp[1], dp[2] = sp[2];
* wide bytes_to_copy either - use the memcpy there.
*/
if (bytes_to_copy < 16 /*else use memcpy*/ &&
- png_isaligned(dp, png_uint_16) &&
- png_isaligned(sp, png_uint_16) &&
- bytes_to_copy % (sizeof (png_uint_16)) == 0 &&
- bytes_to_jump % (sizeof (png_uint_16)) == 0)
+ png_isaligned(dp, png_uint_16) &&
+ png_isaligned(sp, png_uint_16) &&
+ bytes_to_copy % (sizeof (png_uint_16)) == 0 &&
+ bytes_to_jump % (sizeof (png_uint_16)) == 0)
{
/* Everything is aligned for png_uint_16 copies, but try for
* png_uint_32 first.
*/
- if (png_isaligned(dp, png_uint_32) &&
- png_isaligned(sp, png_uint_32) &&
- bytes_to_copy % (sizeof (png_uint_32)) == 0 &&
- bytes_to_jump % (sizeof (png_uint_32)) == 0)
+ if (png_isaligned(dp, png_uint_32) != 0 &&
+ png_isaligned(sp, png_uint_32) != 0 &&
+ bytes_to_copy % (sizeof (png_uint_32)) == 0 &&
+ bytes_to_jump % (sizeof (png_uint_32)) == 0)
{
png_uint_32p dp32 = png_aligncast(png_uint_32p,dp);
png_const_uint_32p sp32 = png_aligncastconst(
- png_const_uint_32p, sp);
+ png_const_uint_32p, sp);
size_t skip = (bytes_to_jump-bytes_to_copy) /
- (sizeof (png_uint_32));
+ (sizeof (png_uint_32));
do
{
return;
}
}
-#endif /* PNG_ALIGN_ code */
+#endif /* ALIGN_TYPE code */
/* The true default - use a memcpy: */
for (;;)
dp += bytes_to_jump;
row_width -= bytes_to_jump;
if (bytes_to_copy > row_width)
- bytes_to_copy = row_width;
+ bytes_to_copy = (unsigned int)/*SAFE*/row_width;
}
}
/* Here if pixel_depth < 8 to check 'end_ptr' below. */
}
else
-#endif /* PNG_READ_INTERLACING_SUPPORTED */
+#endif /* READ_INTERLACING */
/* If here then the switch above wasn't used so just memcpy the whole row
* from the temporary row buffer (notice that this overwrites the end of the
int j;
#ifdef PNG_READ_PACKSWAP_SUPPORTED
- if (transformations & PNG_PACKSWAP)
+ if ((transformations & PNG_PACKSWAP) != 0)
{
sshift = (int)((row_info->width + 7) & 0x07);
dshift = (int)((final_width + 7) & 0x07);
png_uint_32 i;
#ifdef PNG_READ_PACKSWAP_SUPPORTED
- if (transformations & PNG_PACKSWAP)
+ if ((transformations & PNG_PACKSWAP) != 0)
{
sshift = (int)(((row_info->width + 3) & 0x03) << 1);
dshift = (int)(((final_width + 3) & 0x03) << 1);
int jstop = png_pass_inc[pass];
#ifdef PNG_READ_PACKSWAP_SUPPORTED
- if (transformations & PNG_PACKSWAP)
+ if ((transformations & PNG_PACKSWAP) != 0)
{
sshift = (int)(((row_info->width + 1) & 0x01) << 2);
dshift = (int)(((final_width + 1) & 0x01) << 2);
PNG_UNUSED(transformations) /* Silence compiler warning */
#endif
}
-#endif /* PNG_READ_INTERLACING_SUPPORTED */
+#endif /* READ_INTERLACING */
static void
png_read_filter_row_sub(png_row_infop row_info, png_bytep row,
p = b - c;
pc = a - c;
-# ifdef PNG_USE_ABS
- pa = abs(p);
- pb = abs(pc);
- pc = abs(p + pc);
-# else
- pa = p < 0 ? -p : p;
- pb = pc < 0 ? -pc : pc;
- pc = (p + pc) < 0 ? -(p + pc) : p + pc;
-# endif
+#ifdef PNG_USE_ABS
+ pa = abs(p);
+ pb = abs(pc);
+ pc = abs(p + pc);
+#else
+ pa = p < 0 ? -p : p;
+ pb = pc < 0 ? -pc : pc;
+ pc = (p + pc) < 0 ? -(p + pc) : p + pc;
+#endif
/* Find the best predictor, the least of pa, pb, pc favoring the earlier
* ones in the case of a tie.
p = b - c;
pc = a - c;
-# ifdef PNG_USE_ABS
- pa = abs(p);
- pb = abs(pc);
- pc = abs(p + pc);
-# else
- pa = p < 0 ? -p : p;
- pb = pc < 0 ? -pc : pc;
- pc = (p + pc) < 0 ? -(p + pc) : p + pc;
-# endif
+#ifdef PNG_USE_ABS
+ pa = abs(p);
+ pb = abs(pc);
+ pc = abs(p + pc);
+#else
+ pa = p < 0 ? -p : p;
+ pb = pc < 0 ? -pc : pc;
+ pc = (p + pc) < 0 ? -(p + pc) : p + pc;
+#endif
if (pb < pa) pa = pb, a = b;
if (pc < pa) a = c;
*
* TODO: deal more elegantly with truncated IDAT lists.
*/
- ret = inflate(&png_ptr->zstream, Z_NO_FLUSH);
+ ret = PNG_INFLATE(png_ptr, Z_NO_FLUSH);
/* Take the unconsumed output back. */
if (output != NULL)
* read it otherwise stray unread IDAT data or, more likely, an IDAT chunk
* may still remain to be consumed.
*/
- if (!(png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED))
+ if ((png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED) == 0)
{
/* The NULL causes png_read_IDAT_data to swallow any remaining bytes in
* the compressed stream, but the stream may be damaged too, so even after
/* Now clear everything out for safety; the following may not have been
* done.
*/
- if (!(png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED))
+ if ((png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED) == 0)
{
png_ptr->mode |= PNG_AFTER_IDAT;
png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED;
if (png_ptr->row_number < png_ptr->num_rows)
return;
- if (png_ptr->interlaced)
+ if (png_ptr->interlaced != 0)
{
png_ptr->row_number = 0;
png_pass_start[png_ptr->pass]) /
png_pass_inc[png_ptr->pass];
- if (!(png_ptr->transformations & PNG_INTERLACE))
+ if ((png_ptr->transformations & PNG_INTERLACE) == 0)
{
png_ptr->num_rows = (png_ptr->height +
png_pass_yinc[png_ptr->pass] - 1 -
/* Here after at the end of the last row of the last pass. */
png_read_finish_IDAT(png_ptr);
}
-#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */
+#endif /* SEQUENTIAL_READ */
void /* PRIVATE */
png_read_start_row(png_structrp png_ptr)
#ifdef PNG_READ_TRANSFORMS_SUPPORTED
png_init_read_transformations(png_ptr);
#endif
- if (png_ptr->interlaced)
+ if (png_ptr->interlaced != 0)
{
- if (!(png_ptr->transformations & PNG_INTERLACE))
+ if ((png_ptr->transformations & PNG_INTERLACE) == 0)
png_ptr->num_rows = (png_ptr->height + png_pass_yinc[0] - 1 -
png_pass_ystart[0]) / png_pass_yinc[0];
max_pixel_depth = png_ptr->pixel_depth;
- /* WARNING: * png_read_transform_info (pngrtran.c) performs a simpliar set of
+ /* WARNING: * png_read_transform_info (pngrtran.c) performs a simpler set of
* calculations to calculate the final pixel depth, then
* png_do_read_transforms actually does the transforms. This means that the
* code which effectively calculates this value is actually repeated in three
* TODO: fix this.
*/
#ifdef PNG_READ_PACK_SUPPORTED
- if ((png_ptr->transformations & PNG_PACK) && png_ptr->bit_depth < 8)
+ if ((png_ptr->transformations & PNG_PACK) != 0 && png_ptr->bit_depth < 8)
max_pixel_depth = 8;
#endif
#ifdef PNG_READ_EXPAND_SUPPORTED
- if (png_ptr->transformations & PNG_EXPAND)
+ if ((png_ptr->transformations & PNG_EXPAND) != 0)
{
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
{
- if (png_ptr->num_trans)
+ if (png_ptr->num_trans != 0)
max_pixel_depth = 32;
else
if (max_pixel_depth < 8)
max_pixel_depth = 8;
- if (png_ptr->num_trans)
+ if (png_ptr->num_trans != 0)
max_pixel_depth *= 2;
}
else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB)
{
- if (png_ptr->num_trans)
+ if (png_ptr->num_trans != 0)
{
max_pixel_depth *= 4;
max_pixel_depth /= 3;
#endif
#ifdef PNG_READ_EXPAND_16_SUPPORTED
- if (png_ptr->transformations & PNG_EXPAND_16)
+ if ((png_ptr->transformations & PNG_EXPAND_16) != 0)
{
-# ifdef PNG_READ_EXPAND_SUPPORTED
- /* In fact it is an error if it isn't supported, but checking is
- * the safe way.
- */
- if (png_ptr->transformations & PNG_EXPAND)
- {
- if (png_ptr->bit_depth < 16)
- max_pixel_depth *= 2;
- }
- else
-# endif
- png_ptr->transformations &= ~PNG_EXPAND_16;
+# ifdef PNG_READ_EXPAND_SUPPORTED
+ /* In fact it is an error if it isn't supported, but checking is
+ * the safe way.
+ */
+ if ((png_ptr->transformations & PNG_EXPAND) != 0)
+ {
+ if (png_ptr->bit_depth < 16)
+ max_pixel_depth *= 2;
+ }
+ else
+# endif
+ png_ptr->transformations &= ~PNG_EXPAND_16;
}
#endif
#ifdef PNG_READ_FILLER_SUPPORTED
- if (png_ptr->transformations & (PNG_FILLER))
+ if ((png_ptr->transformations & (PNG_FILLER)) != 0)
{
if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY)
{
#endif
#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
- if (png_ptr->transformations & PNG_GRAY_TO_RGB)
+ if ((png_ptr->transformations & PNG_GRAY_TO_RGB) != 0)
{
if (
#ifdef PNG_READ_EXPAND_SUPPORTED
- (png_ptr->num_trans && (png_ptr->transformations & PNG_EXPAND)) ||
+ (png_ptr->num_trans != 0 &&
+ (png_ptr->transformations & PNG_EXPAND) != 0) ||
#endif
#ifdef PNG_READ_FILLER_SUPPORTED
- (png_ptr->transformations & (PNG_FILLER)) ||
+ (png_ptr->transformations & (PNG_FILLER)) != 0 ||
#endif
png_ptr->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
{
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) && \
defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
- if (png_ptr->transformations & PNG_USER_TRANSFORM)
+ if ((png_ptr->transformations & PNG_USER_TRANSFORM) != 0)
{
int user_pixel_depth = png_ptr->user_transform_depth *
png_ptr->user_transform_channels;
png_free(png_ptr, png_ptr->big_row_buf);
png_free(png_ptr, png_ptr->big_prev_row);
- if (png_ptr->interlaced)
+ if (png_ptr->interlaced != 0)
png_ptr->big_row_buf = (png_bytep)png_calloc(png_ptr,
row_bytes + 48);
* does not, so free the read buffer now regardless; the sequential reader
* reallocates it on demand.
*/
- if (png_ptr->read_buffer)
+ if (png_ptr->read_buffer != 0)
{
png_bytep buffer = png_ptr->read_buffer;
png_ptr->flags |= PNG_FLAG_ROW_INIT;
}
-#endif /* PNG_READ_SUPPORTED */
+#endif /* READ */
/* pngset.c - storage of image information into info struct
*
- * Last changed in libpng 1.6.11 [June 5, 2014]
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.21 [January 15, 2016]
+ * Copyright (c) 1998-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
xy.whitey = white_y;
if (png_colorspace_set_chromaticities(png_ptr, &info_ptr->colorspace, &xy,
- 2/* override with app values*/))
+ 2/* override with app values*/) != 0)
info_ptr->colorspace.flags |= PNG_COLORSPACE_FROM_cHRM;
png_colorspace_sync_info(png_ptr, info_ptr);
XYZ.blue_Y = int_blue_Y;
XYZ.blue_Z = int_blue_Z;
- if (png_colorspace_set_endpoints(png_ptr, &info_ptr->colorspace, &XYZ, 2))
+ if (png_colorspace_set_endpoints(png_ptr, &info_ptr->colorspace,
+ &XYZ, 2) != 0)
info_ptr->colorspace.flags |= PNG_COLORSPACE_FROM_cHRM;
png_colorspace_sync_info(png_ptr, info_ptr);
png_fixed(png_ptr, red_X, "cHRM Red X"),
png_fixed(png_ptr, red_Y, "cHRM Red Y"),
png_fixed(png_ptr, red_Z, "cHRM Red Z"),
- png_fixed(png_ptr, green_X, "cHRM Red X"),
- png_fixed(png_ptr, green_Y, "cHRM Red Y"),
- png_fixed(png_ptr, green_Z, "cHRM Red Z"),
- png_fixed(png_ptr, blue_X, "cHRM Red X"),
- png_fixed(png_ptr, blue_Y, "cHRM Red Y"),
- png_fixed(png_ptr, blue_Z, "cHRM Red Z"));
+ png_fixed(png_ptr, green_X, "cHRM Green X"),
+ png_fixed(png_ptr, green_Y, "cHRM Green Y"),
+ png_fixed(png_ptr, green_Z, "cHRM Green Z"),
+ png_fixed(png_ptr, blue_X, "cHRM Blue X"),
+ png_fixed(png_ptr, blue_Y, "cHRM Blue Y"),
+ png_fixed(png_ptr, blue_Z, "cHRM Blue Z"));
}
-# endif /* PNG_FLOATING_POINT_SUPPORTED */
+# endif /* FLOATING_POINT */
-#endif /* PNG_cHRM_SUPPORTED */
+#endif /* cHRM */
#ifdef PNG_gAMA_SUPPORTED
void PNGFAPI
if (info_ptr->hist == NULL)
{
png_warning(png_ptr, "Insufficient memory for hIST chunk data");
+
return;
}
if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
info_ptr->channels = 1;
- else if (info_ptr->color_type & PNG_COLOR_MASK_COLOR)
+ else if ((info_ptr->color_type & PNG_COLOR_MASK_COLOR) != 0)
info_ptr->channels = 3;
else
info_ptr->channels = 1;
- if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA)
+ if ((info_ptr->color_type & PNG_COLOR_MASK_ALPHA) != 0)
info_ptr->channels++;
info_ptr->pixel_depth = (png_byte)(info_ptr->channels * info_ptr->bit_depth);
png_debug1(1, "in %s storage function", "pCAL");
if (png_ptr == NULL || info_ptr == NULL || purpose == NULL || units == NULL
- || (nparams > 0 && params == NULL))
+ || (nparams > 0 && params == NULL))
return;
length = strlen(purpose) + 1;
/* Validate params[nparams] */
for (i=0; i<nparams; ++i)
+ {
if (params[i] == NULL ||
- !png_check_fp_string(params[i], strlen(params[i])))
+ !png_check_fp_string(params[i], strlen(params[i])))
png_error(png_ptr, "Invalid format for pCAL parameter");
+ }
info_ptr->pcal_purpose = png_voidcast(png_charp,
- png_malloc_warn(png_ptr, length));
+ png_malloc_warn(png_ptr, length));
if (info_ptr->pcal_purpose == NULL)
{
png_warning(png_ptr, "Insufficient memory for pCAL purpose");
+
return;
}
if (info_ptr->pcal_units == NULL)
{
png_warning(png_ptr, "Insufficient memory for pCAL units");
+
return;
}
if (info_ptr->pcal_params == NULL)
{
png_warning(png_ptr, "Insufficient memory for pCAL params");
+
return;
}
if (info_ptr->pcal_params[i] == NULL)
{
png_warning(png_ptr, "Insufficient memory for pCAL parameter");
+
return;
}
if (info_ptr->scal_s_width == NULL)
{
png_warning(png_ptr, "Memory allocation failed while processing sCAL");
+
return;
}
info_ptr->scal_s_width = NULL;
png_warning(png_ptr, "Memory allocation failed while processing sCAL");
+
return;
}
png_const_colorp palette, int num_palette)
{
+ png_uint_32 max_palette_length;
+
png_debug1(1, "in %s storage function", "PLTE");
if (png_ptr == NULL || info_ptr == NULL)
return;
- if (num_palette < 0 || num_palette > PNG_MAX_PALETTE_LENGTH)
+ max_palette_length = (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) ?
+ (1 << info_ptr->bit_depth) : PNG_MAX_PALETTE_LENGTH;
+
+ if (num_palette < 0 || num_palette > (int) max_palette_length)
{
if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
png_error(png_ptr, "Invalid palette length");
else
{
png_warning(png_ptr, "Invalid palette length");
+
return;
}
}
))
{
png_error(png_ptr, "Invalid palette");
- return;
}
/* It may not actually be necessary to set png_ptr->palette here;
png_free_data(png_ptr, info_ptr, PNG_FREE_PLTE, 0);
/* Changed in libpng-1.2.1 to allocate PNG_MAX_PALETTE_LENGTH instead
- * of num_palette entries, in case of an invalid PNG file that has
- * too-large sample values.
+ * of num_palette entries, in case of an invalid PNG file or incorrect
+ * call to png_set_PLTE() with too-large sample values.
*/
png_ptr->palette = png_voidcast(png_colorp, png_calloc(png_ptr,
PNG_MAX_PALETTE_LENGTH * (sizeof (png_color))));
if (png_ptr == NULL || info_ptr == NULL)
return;
- if (png_colorspace_set_sRGB(png_ptr, &info_ptr->colorspace, srgb_intent))
+ if (png_colorspace_set_sRGB(png_ptr, &info_ptr->colorspace,
+ srgb_intent) != 0)
{
/* This causes the gAMA and cHRM to be written too */
info_ptr->colorspace.flags |=
if (new_iccp_name == NULL)
{
png_benign_error(png_ptr, "Insufficient memory to process iCCP chunk");
+
return;
}
png_free(png_ptr, new_iccp_name);
png_benign_error(png_ptr,
"Insufficient memory to process iCCP profile");
+
return;
}
{
int i;
- png_debug1(1, "in %lx storage function", png_ptr == NULL ? "unexpected" :
+ png_debug1(1, "in %lx storage function", png_ptr == NULL ? 0xabadca11U :
(unsigned long)png_ptr->chunk_name);
if (png_ptr == NULL || info_ptr == NULL || num_text <= 0 || text_ptr == NULL)
else
max_text = INT_MAX;
- /* Now allocate a new array and copy the old members in, this does all
+ /* Now allocate a new array and copy the old members in; this does all
* the overflow checks.
*/
new_text = png_voidcast(png_textp,png_realloc_array(png_ptr,
{
png_chunk_report(png_ptr, "too many text chunks",
PNG_CHUNK_WRITE_ERROR);
+
return 1;
}
else
lang_key_len = 0;
}
-# else /* PNG_iTXt_SUPPORTED */
+# else /* iTXt */
{
png_chunk_report(png_ptr, "iTXt chunk not supported",
PNG_CHUNK_WRITE_ERROR);
{
png_chunk_report(png_ptr, "text chunk: out of memory",
PNG_CHUNK_WRITE_ERROR);
+
return 1;
}
png_debug1(1, "in %s storage function", "tIME");
if (png_ptr == NULL || info_ptr == NULL || mod_time == NULL ||
- (png_ptr->mode & PNG_WROTE_tIME))
+ (png_ptr->mode & PNG_WROTE_tIME) != 0)
return;
if (mod_time->month == 0 || mod_time->month > 12 ||
mod_time->second > 60)
{
png_warning(png_ptr, "Ignoring invalid time value");
+
return;
}
png_debug1(1, "in %s storage function", "tRNS");
if (png_ptr == NULL || info_ptr == NULL)
+
return;
if (trans_alpha != NULL)
if (trans_color != NULL)
{
- int sample_max = (1 << info_ptr->bit_depth);
-
- if ((info_ptr->color_type == PNG_COLOR_TYPE_GRAY &&
- trans_color->gray > sample_max) ||
- (info_ptr->color_type == PNG_COLOR_TYPE_RGB &&
- (trans_color->red > sample_max ||
- trans_color->green > sample_max ||
- trans_color->blue > sample_max)))
- png_warning(png_ptr,
- "tRNS chunk has out-of-range samples for bit_depth");
+#ifdef PNG_WARNINGS_SUPPORTED
+ if (info_ptr->bit_depth < 16)
+ {
+ int sample_max = (1 << info_ptr->bit_depth) - 1;
+
+ if ((info_ptr->color_type == PNG_COLOR_TYPE_GRAY &&
+ trans_color->gray > sample_max) ||
+ (info_ptr->color_type == PNG_COLOR_TYPE_RGB &&
+ (trans_color->red > sample_max ||
+ trans_color->green > sample_max ||
+ trans_color->blue > sample_max)))
+ png_warning(png_ptr,
+ "tRNS chunk has out-of-range samples for bit_depth");
+ }
+#endif
info_ptr->trans_color = *trans_color;
{
/* Out of memory or too many chunks */
png_chunk_report(png_ptr, "too many sPLT chunks", PNG_CHUNK_WRITE_ERROR);
+
return;
}
np->depth = entries->depth;
- /* In the even of out-of-memory just return - there's no point keeping on
- * trying to add sPLT chunks.
+ /* In the event of out-of-memory just return - there's no point keeping
+ * on trying to add sPLT chunks.
*/
length = strlen(entries->name) + 1;
np->name = png_voidcast(png_charp, png_malloc_base(png_ptr, length));
memcpy(np->name, entries->name, length);
/* IMPORTANT: we have memory now that won't get freed if something else
- * goes wrong, this code must free it. png_malloc_array produces no
- * warnings, use a png_chunk_report (below) if there is an error.
+ * goes wrong; this code must free it. png_malloc_array produces no
+ * warnings; use a png_chunk_report (below) if there is an error.
*/
np->entries = png_voidcast(png_sPLT_entryp, png_malloc_array(png_ptr,
entries->nentries, sizeof (png_sPLT_entry)));
if (np->entries == NULL)
{
png_free(png_ptr, np->name);
+ np->name = NULL;
break;
}
if (nentries > 0)
png_chunk_report(png_ptr, "sPLT out of memory", PNG_CHUNK_WRITE_ERROR);
}
-#endif /* PNG_sPLT_SUPPORTED */
+#endif /* sPLT */
#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
static png_byte
location &= (PNG_HAVE_IHDR|PNG_HAVE_PLTE|PNG_AFTER_IDAT);
/* New in 1.6.0; copy the location and check it. This is an API
- * change, previously the app had to use the
+ * change; previously the app had to use the
* png_set_unknown_chunk_location API below for each chunk.
*/
- if (location == 0 && !(png_ptr->mode & PNG_IS_READ_STRUCT))
+ if (location == 0 && (png_ptr->mode & PNG_IS_READ_STRUCT) == 0)
{
/* Write struct, so unknown chunks come from the app */
png_app_warning(png_ptr,
png_unknown_chunkp np;
if (png_ptr == NULL || info_ptr == NULL || num_unknowns <= 0 ||
- unknowns == NULL)
+ unknowns == NULL)
return;
/* Check for the failure cases where support has been disabled at compile
*/
# if !defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) && \
defined(PNG_READ_SUPPORTED)
- if (png_ptr->mode & PNG_IS_READ_STRUCT)
+ if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0)
{
png_app_error(png_ptr, "no unknown chunk support on read");
+
return;
}
# endif
# if !defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) && \
defined(PNG_WRITE_SUPPORTED)
- if (!(png_ptr->mode & PNG_IS_READ_STRUCT))
+ if ((png_ptr->mode & PNG_IS_READ_STRUCT) == 0)
{
png_app_error(png_ptr, "no unknown chunk support on write");
+
return;
}
# endif
{
png_chunk_report(png_ptr, "too many unknown chunks",
PNG_CHUNK_WRITE_ERROR);
+
return;
}
{
png_app_error(png_ptr, "invalid unknown chunk location");
/* Fake out the pre 1.6.0 behavior: */
- if ((location & PNG_HAVE_IDAT)) /* undocumented! */
+ if ((location & PNG_HAVE_IDAT) != 0) /* undocumented! */
location = PNG_AFTER_IDAT;
else
check_location(png_ptr, location);
}
}
-#endif
-
+#endif /* STORE_UNKNOWN_CHUNKS */
#ifdef PNG_MNG_FEATURES_SUPPORTED
png_uint_32 PNGAPI
/* Utility function: update the 'keep' state of a chunk if it is already in
* the list, otherwise add it to the list.
*/
- for (i=0; i<count; ++i, list += 5) if (memcmp(list, add, 4) == 0)
+ for (i=0; i<count; ++i, list += 5)
{
- list[4] = (png_byte)keep;
- return count;
+ if (memcmp(list, add, 4) == 0)
+ {
+ list[4] = (png_byte)keep;
+
+ return count;
+ }
}
if (keep != PNG_HANDLE_CHUNK_AS_DEFAULT)
if (keep < 0 || keep >= PNG_HANDLE_CHUNK_LAST)
{
png_app_error(png_ptr, "png_set_keep_unknown_chunks: invalid keep");
+
return;
}
};
chunk_list = chunks_to_ignore;
- num_chunks = (sizeof chunks_to_ignore)/5;
+ num_chunks = (unsigned int)/*SAFE*/(sizeof chunks_to_ignore)/5U;
}
else /* num_chunks_in > 0 */
* which can be switched off.
*/
png_app_error(png_ptr, "png_set_keep_unknown_chunks: no chunk list");
+
return;
}
if (num_chunks + old_num_chunks > UINT_MAX/5)
{
png_app_error(png_ptr, "png_set_keep_unknown_chunks: too many chunks");
+
return;
}
unsigned int i;
for (i=0; i<num_chunks; ++i)
+ {
old_num_chunks = add_one_chunk(new_list, old_num_chunks,
chunk_list+5*i, keep);
+ }
/* Now remove any spurious 'default' entries. */
num_chunks = 0;
for (i=0, inlist=outlist=new_list; i<old_num_chunks; ++i, inlist += 5)
+ {
if (inlist[4])
{
if (outlist != inlist)
outlist += 5;
++num_chunks;
}
+ }
/* This means the application has removed all the specialized handling. */
if (num_chunks == 0)
if (png_ptr == NULL || info_ptr == NULL)
return;
- if (info_ptr->row_pointers && (info_ptr->row_pointers != row_pointers))
+ if (info_ptr->row_pointers != NULL &&
+ (info_ptr->row_pointers != row_pointers))
png_free_data(png_ptr, info_ptr, PNG_FREE_ROWS, 0);
info_ptr->row_pointers = row_pointers;
png_error(png_ptr, "invalid compression buffer size");
# ifdef PNG_SEQUENTIAL_READ_SUPPORTED
- if (png_ptr->mode & PNG_IS_READ_STRUCT)
+ if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0)
{
png_ptr->IDAT_read_size = (png_uint_32)size; /* checked above */
return;
# endif
# ifdef PNG_WRITE_SUPPORTED
- if (!(png_ptr->mode & PNG_IS_READ_STRUCT))
+ if ((png_ptr->mode & PNG_IS_READ_STRUCT) == 0)
{
if (png_ptr->zowner != 0)
{
png_warning(png_ptr,
"Compression buffer size cannot be changed because it is in use");
+
return;
}
+#ifndef __COVERITY__
+ /* Some compilers complain that this is always false. However, it
+ * can be true when integer overflow happens.
+ */
if (size > ZLIB_IO_MAX)
{
png_warning(png_ptr,
"Compression buffer size limited to system maximum");
size = ZLIB_IO_MAX; /* must fit */
}
+#endif
- else if (size < 6)
+ if (size < 6)
{
/* Deflate will potentially go into an infinite loop on a SYNC_FLUSH
* if this is permitted.
*/
png_warning(png_ptr,
"Compression buffer size cannot be reduced below 6");
+
return;
}
void PNGAPI
png_set_invalid(png_const_structrp png_ptr, png_inforp info_ptr, int mask)
{
- if (png_ptr && info_ptr)
+ if (png_ptr != NULL && info_ptr != NULL)
info_ptr->valid &= ~mask;
}
{
/* Images with dimensions larger than these limits will be
* rejected by png_set_IHDR(). To accept any PNG datastream
- * regardless of dimensions, set both limits to 0x7ffffffL.
+ * regardless of dimensions, set both limits to 0x7fffffff.
*/
if (png_ptr == NULL)
return;
void PNGAPI
png_set_chunk_cache_max (png_structrp png_ptr, png_uint_32 user_chunk_cache_max)
{
- if (png_ptr != NULL)
- png_ptr->user_chunk_cache_max = user_chunk_cache_max;
+ if (png_ptr != NULL)
+ png_ptr->user_chunk_cache_max = user_chunk_cache_max;
}
/* This function was added to libpng 1.4.1 */
if (png_ptr != NULL)
png_ptr->user_chunk_malloc_max = user_chunk_malloc_max;
}
-#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */
+#endif /* ?SET_USER_LIMITS */
#ifdef PNG_BENIGN_ERRORS_SUPPORTED
png_ptr->flags &= ~(PNG_FLAG_BENIGN_ERRORS_WARN |
PNG_FLAG_APP_WARNINGS_WARN | PNG_FLAG_APP_ERRORS_WARN);
}
-#endif /* PNG_BENIGN_ERRORS_SUPPORTED */
+#endif /* BENIGN_ERRORS */
#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
/* Whether to report invalid palette index; added at libng-1.5.10.
* It is possible for an indexed (color-type==3) PNG file to contain
* pixels with invalid (out-of-range) indexes if the PLTE chunk has
* fewer entries than the image's bit-depth would allow. We recover
- * from this gracefully by filling any incomplete palette with zeroes
+ * from this gracefully by filling any incomplete palette with zeros
* (opaque black). By default, when this occurs libpng will issue
* a benign error. This API can be used to override that behavior.
*/
png_ptr->num_palette_max = -1;
}
#endif
-#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */
+
+#if defined(PNG_TEXT_SUPPORTED) || defined(PNG_pCAL_SUPPORTED) || \
+ defined(PNG_iCCP_SUPPORTED) || defined(PNG_sPLT_SUPPORTED)
+/* Check that the tEXt or zTXt keyword is valid per PNG 1.0 specification,
+ * and if invalid, correct the keyword rather than discarding the entire
+ * chunk. The PNG 1.0 specification requires keywords 1-79 characters in
+ * length, forbids leading or trailing whitespace, multiple internal spaces,
+ * and the non-break space (0x80) from ISO 8859-1. Returns keyword length.
+ *
+ * The 'new_key' buffer must be 80 characters in size (for the keyword plus a
+ * trailing '\0'). If this routine returns 0 then there was no keyword, or a
+ * valid one could not be generated, and the caller must png_error.
+ */
+png_uint_32 /* PRIVATE */
+png_check_keyword(png_structrp png_ptr, png_const_charp key, png_bytep new_key)
+{
+ png_const_charp orig_key = key;
+ png_uint_32 key_len = 0;
+ int bad_character = 0;
+ int space = 1;
+
+ png_debug(1, "in png_check_keyword");
+
+ if (key == NULL)
+ {
+ *new_key = 0;
+ return 0;
+ }
+
+ while (*key && key_len < 79)
+ {
+ png_byte ch = (png_byte)*key++;
+
+ if ((ch > 32 && ch <= 126) || (ch >= 161 /*&& ch <= 255*/))
+ *new_key++ = ch, ++key_len, space = 0;
+
+ else if (space == 0)
+ {
+ /* A space or an invalid character when one wasn't seen immediately
+ * before; output just a space.
+ */
+ *new_key++ = 32, ++key_len, space = 1;
+
+ /* If the character was not a space then it is invalid. */
+ if (ch != 32)
+ bad_character = ch;
+ }
+
+ else if (bad_character == 0)
+ bad_character = ch; /* just skip it, record the first error */
+ }
+
+ if (key_len > 0 && space != 0) /* trailing space */
+ {
+ --key_len, --new_key;
+ if (bad_character == 0)
+ bad_character = 32;
+ }
+
+ /* Terminate the keyword */
+ *new_key = 0;
+
+ if (key_len == 0)
+ return 0;
+
+#ifdef PNG_WARNINGS_SUPPORTED
+ /* Try to only output one warning per keyword: */
+ if (*key != 0) /* keyword too long */
+ png_warning(png_ptr, "keyword truncated");
+
+ else if (bad_character != 0)
+ {
+ PNG_WARNING_PARAMETERS(p)
+
+ png_warning_parameter(p, 1, orig_key);
+ png_warning_parameter_signed(p, 2, PNG_NUMBER_FORMAT_02x, bad_character);
+
+ png_formatted_warning(png_ptr, p, "keyword \"@1\": bad character '0x@2'");
+ }
+#endif /* WARNINGS */
+
+ return key_len;
+}
+#endif /* TEXT || pCAL || iCCP || sPLT */
+#endif /* READ || WRITE */
/* pngstruct.h - header file for PNG reference library
*
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.18 [July 23, 2015]
+ * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
- * Last changed in libpng 1.6.1 [March 28, 2013]
- *
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
#endif /* COLORSPACE */
#if defined(PNG_COLORSPACE_SUPPORTED) || defined(PNG_GAMMA_SUPPORTED)
-/* A colorspace is all the above plus, potentially, profile information,
+/* A colorspace is all the above plus, potentially, profile information;
* however at present libpng does not use the profile internally so it is only
* stored in the png_info struct (if iCCP is supported.) The rendering intent
* is retained here and is checked.
png_uint_32 row_number; /* current row in interlace pass */
png_uint_32 chunk_name; /* PNG_CHUNK() id of current chunk */
png_bytep prev_row; /* buffer to save previous (unfiltered) row.
- * This is a pointer into big_prev_row
+ * While reading this is a pointer into
+ * big_prev_row; while writing it is separately
+ * allocated if needed.
*/
png_bytep row_buf; /* buffer to save current (unfiltered) row.
- * This is a pointer into big_row_buf
+ * While reading, this is a pointer into
+ * big_row_buf; while writing it is separately
+ * allocated.
*/
-#ifdef PNG_WRITE_SUPPORTED
- png_bytep sub_row; /* buffer to save "sub" row when filtering */
- png_bytep up_row; /* buffer to save "up" row when filtering */
- png_bytep avg_row; /* buffer to save "avg" row when filtering */
- png_bytep paeth_row; /* buffer to save "Paeth" row when filtering */
+#ifdef PNG_WRITE_FILTER_SUPPORTED
+ png_bytep try_row; /* buffer to save trial row when filtering */
+ png_bytep tst_row; /* buffer to save best trial row when filtering */
#endif
png_size_t info_rowbytes; /* Added in 1.5.4: cache of updated row bytes */
/* pixel depth used for the row buffers */
png_byte transformed_pixel_depth;
/* pixel depth after read/write transforms */
+#if PNG_ZLIB_VERNUM >= 0x1240
+ png_byte zstream_start; /* at start of an input zlib stream */
+#endif /* Zlib >= 1.2.4 */
#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED)
png_uint_16 filler; /* filler bytes for pixel expansion */
#endif
#ifdef PNG_READ_GAMMA_SUPPORTED
png_color_16 background_1; /* background normalized to gamma 1.0 */
#endif
-#endif /* PNG_bKGD_SUPPORTED */
+#endif /* bKGD */
#ifdef PNG_WRITE_FLUSH_SUPPORTED
png_flush_ptr output_flush_fn; /* Function for flushing output */
int process_mode; /* what push library is currently doing */
int cur_palette; /* current push library palette index */
-#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
+#endif /* PROGRESSIVE_READ */
#if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__)
/* For the Borland special 64K segment handler */
png_bytep quantize_index; /* index translation for palette files */
#endif
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
- png_byte heuristic_method; /* heuristic for row filter selection */
- png_byte num_prev_filters; /* number of weights for previous rows */
- png_bytep prev_filters; /* filter type(s) of previous row(s) */
- png_uint_16p filter_weights; /* weight(s) for previous line(s) */
- png_uint_16p inv_filter_weights; /* 1/weight(s) for previous line(s) */
- png_uint_16p filter_costs; /* relative filter calculation cost */
- png_uint_16p inv_filter_costs; /* 1/relative filter calculation cost */
-#endif
-
- /* Options */
+/* Options */
#ifdef PNG_SET_OPTION_SUPPORTED
png_byte options; /* On/off state (up to 4 options) */
#endif
/* pngtest.c - a simple test program to test libpng
*
- * Last changed in libpng 1.6.11 [June 5, 2014]
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.5.25 [December 3, 2015]
+ * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
defined PNG_READ_sBIT_SUPPORTED &&\
defined PNG_READ_sCAL_SUPPORTED &&\
defined PNG_READ_sRGB_SUPPORTED &&\
+ defined PNG_READ_sPLT_SUPPORTED &&\
defined PNG_READ_tEXt_SUPPORTED &&\
defined PNG_READ_tIME_SUPPORTED &&\
defined PNG_READ_zTXt_SUPPORTED &&\
- defined PNG_WRITE_INTERLACING_SUPPORTED
+ (defined PNG_WRITE_INTERLACING_SUPPORTED || PNG_LIBPNG_VER >= 10700)
#ifdef PNG_ZLIB_HEADER
# include PNG_ZLIB_HEADER /* defined by pnglibconf.h from 1.7 */
# define SINGLE_ROWBUF_ALLOC /* Makes buffer overruns easier to nail */
#endif
+#ifndef PNG_UNUSED
+# define PNG_UNUSED(param) (void)param;
+#endif
+
/* Turn on CPU timing
#define PNGTEST_TIMING
*/
#define PNG_tIME_STRING_LENGTH 29
static int tIME_chunk_present = 0;
static char tIME_string[PNG_tIME_STRING_LENGTH] = "tIME chunk is not present";
+
+#if PNG_LIBPNG_VER < 10619
+#define png_convert_to_rfc1123_buffer(ts, t) tIME_to_str(read_ptr, ts, t)
+
+static int
+tIME_to_str(png_structp png_ptr, png_charp ts, png_const_timep t)
+{
+ png_const_charp str = png_convert_to_rfc1123(png_ptr, t);
+
+ if (str == NULL)
+ return 0;
+
+ strcpy(ts, str);
+ return 1;
+}
+#endif /* older libpng */
#endif
static int verbose = 0;
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
-/* Example of using user transform callback (we don't transform anything,
- * but merely examine the row filters. We set this to 256 rather than
- * 5 in case illegal filter values are present.)
+/* Example of using a user transform callback (doesn't do anything at present).
*/
-static png_uint_32 filters_used[256];
static void PNGCBAPI
-count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data)
+read_user_callback(png_structp png_ptr, png_row_infop row_info, png_bytep data)
{
- if (png_ptr != NULL && row_info != NULL)
- ++filters_used[*(data - 1)];
+ PNG_UNUSED(png_ptr)
+ PNG_UNUSED(row_info)
+ PNG_UNUSED(data)
}
#endif
png_uint_32 n, nstop;
int channel;
int color_channels = row_info->channels;
- if (row_info->color_type > 3)color_channels--;
+ if (row_info->color_type > 3)
+ color_channels--;
for (n = 0, nstop=row_info->width; n<nstop; n++)
{
}
}
}
-#endif /* PNG_WRITE_USER_TRANSFORM_SUPPORTED */
+#endif /* WRITE_USER_TRANSFORM */
#ifndef PNG_STDIO_SUPPORTED
/* START of code to validate stdio-free compilation */
pngtest_check_io_state(png_ptr, length, PNG_IO_WRITING);
#endif
}
-#endif /* !PNG_STDIO_SUPPORTED */
+#endif /* !STDIO */
/* This function is called when there is a warning, but the library thinks
* it can continue anyway. Replacement functions don't have to do anything
#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG
/* Allocate memory. For reasonable files, size should never exceed
- * 64K. However, zlib may allocate more then 64K if you don't tell
+ * 64K. However, zlib may allocate more than 64K if you don't tell
* it not to. See zconf.h and png.h for more information. zlib does
* need to allocate exactly 64K, so whatever you call here must
* have the ability to do that.
}
/* Unlink the element from the list. */
+ if (pinformation != NULL)
{
memory_infop *ppinfo = &pinformation;
/* We must free the list element too, but first kill
the memory that is to be freed. */
memset(ptr, 0x55, pinfo->size);
- if (pinfo != NULL)
- free(pinfo);
+ free(pinfo);
pinfo = NULL;
break;
}
if (pinfo->next == NULL)
{
- fprintf(STDERR, "Pointer %x not found\n", (unsigned int)ptr);
+ fprintf(STDERR, "Pointer %p not found\n", ptr);
break;
}
free(ptr);
ptr = NULL;
}
-#endif /* PNG_USER_MEM_SUPPORTED && PNG_DEBUG */
+#endif /* USER_MEM && DEBUG */
/* END of code to test memory allocation/deallocation */
{
int location;
- if ((data->location[0] & what) || (data->location[1] & what))
+ if ((data->location[0] & what) != 0 || (data->location[1] & what) != 0)
return 0; /* already have one of these */
- /* Find where we are (the code below zeros info_ptr to indicate that the
+ /* Find where we are (the code below zeroes info_ptr to indicate that the
* chunks before the first IDAT have been read.)
*/
if (data->info_ptr == NULL) /* after IDAT */
location = what | after_IDAT;
- else if (png_get_valid(png_ptr, data->info_ptr, PNG_INFO_PLTE))
+ else if (png_get_valid(png_ptr, data->info_ptr, PNG_INFO_PLTE) != 0)
location = what | before_IDAT;
else
if (chunk->data[0] != 0 && chunk->data[0] != 1)
return (-1); /* Invalid mode */
- if (set_location(png_ptr, my_user_chunk_data, have_sTER))
+ if (set_location(png_ptr, my_user_chunk_data, have_sTER) != 0)
{
my_user_chunk_data->sTER_mode=chunk->data[0];
return (1);
if (chunk->size != 9)
return (-1); /* Error return */
- if (!set_location(png_ptr, my_user_chunk_data, have_vpAg))
+ if (set_location(png_ptr, my_user_chunk_data, have_vpAg) == 0)
return (0); /* duplicate vpAg */
my_user_chunk_data->vpAg_width = png_get_uint_31(png_ptr, chunk->data);
write_vpAg_chunk(write_ptr);
}
}
-#endif /* PNG_WRITE_SUPPORTED */
-#else /* !PNG_READ_USER_CHUNKS_SUPPORTED */
+#endif /* WRITE */
+#else /* !READ_USER_CHUNKS */
# define write_chunks(pp,loc) ((void)0)
#endif
/* END of code to demonstrate user chunk support */
*/
#ifdef PNG_TEXT_SUPPORTED
static void
-pngtest_check_text_support(png_const_structp png_ptr, png_textp text_ptr,
+pngtest_check_text_support(png_structp png_ptr, png_textp text_ptr,
int num_text)
{
while (num_text > 0)
case PNG_TEXT_COMPRESSION_zTXt:
# ifndef PNG_WRITE_zTXt_SUPPORTED
++unsupported_chunks;
+ /* In libpng 1.7 this now does an app-error, so stop it: */
+ text_ptr[num_text].compression = PNG_TEXT_COMPRESSION_NONE;
# endif
break;
case PNG_ITXT_COMPRESSION_zTXt:
# ifndef PNG_WRITE_iTXt_SUPPORTED
++unsupported_chunks;
+ text_ptr[num_text].compression = PNG_TEXT_COMPRESSION_NONE;
# endif
break;
png_structp write_ptr;
png_infop write_info_ptr;
png_infop write_end_info_ptr;
+#ifdef PNG_WRITE_FILTER_SUPPORTED
int interlace_preserved = 1;
-#else
+#endif /* WRITE_FILTER */
+#else /* !WRITE */
png_structp write_ptr = NULL;
png_infop write_info_ptr = NULL;
png_infop write_end_info_ptr = NULL;
-#endif
+#endif /* !WRITE */
png_bytep row_buf;
png_uint_32 y;
png_uint_32 width, height;
- int num_pass = 1, pass;
+ volatile int num_passes;
+ int pass;
int bit_depth, color_type;
row_buf = NULL;
}
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
- {
- int i;
-
- for (i = 0; i<256; i++)
- filters_used[i] = 0;
-
- png_set_read_user_transform_fn(read_ptr, count_filters);
- }
+ png_set_read_user_transform_fn(read_ptr, read_user_callback);
#endif
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
zero_samples = 0;
int interlace_type, compression_type, filter_type;
if (png_get_IHDR(read_ptr, read_info_ptr, &width, &height, &bit_depth,
- &color_type, &interlace_type, &compression_type, &filter_type))
+ &color_type, &interlace_type, &compression_type, &filter_type) != 0)
{
png_set_IHDR(write_ptr, write_info_ptr, width, height, bit_depth,
color_type, interlace_type, compression_type, filter_type);
-#ifndef PNG_READ_INTERLACING_SUPPORTED
- /* num_pass will not be set below, set it here if the image is
- * interlaced: what happens is that write interlacing is *not* turned
- * on an the partial interlaced rows are written directly.
+ /* num_passes may not be available below if interlace support is not
+ * provided by libpng for both read and write.
*/
switch (interlace_type)
{
case PNG_INTERLACE_NONE:
- num_pass = 1;
+ num_passes = 1;
break;
case PNG_INTERLACE_ADAM7:
- num_pass = 7;
- break;
+ num_passes = 7;
+ break;
default:
- png_error(read_ptr, "invalid interlace type");
- /*NOT REACHED*/
+ png_error(read_ptr, "invalid interlace type");
+ /*NOT REACHED*/
}
-#endif
}
+
+ else
+ png_error(read_ptr, "png_get_IHDR failed");
}
#ifdef PNG_FIXED_POINT_SUPPORTED
#ifdef PNG_cHRM_SUPPORTED
blue_y;
if (png_get_cHRM_fixed(read_ptr, read_info_ptr, &white_x, &white_y,
- &red_x, &red_y, &green_x, &green_y, &blue_x, &blue_y))
+ &red_x, &red_y, &green_x, &green_y, &blue_x, &blue_y) != 0)
{
png_set_cHRM_fixed(write_ptr, write_info_ptr, white_x, white_y, red_x,
red_y, green_x, green_y, blue_x, blue_y);
{
png_fixed_point gamma;
- if (png_get_gAMA_fixed(read_ptr, read_info_ptr, &gamma))
+ if (png_get_gAMA_fixed(read_ptr, read_info_ptr, &gamma) != 0)
png_set_gAMA_fixed(write_ptr, write_info_ptr, gamma);
}
#endif
blue_y;
if (png_get_cHRM(read_ptr, read_info_ptr, &white_x, &white_y, &red_x,
- &red_y, &green_x, &green_y, &blue_x, &blue_y))
+ &red_y, &green_x, &green_y, &blue_x, &blue_y) != 0)
{
png_set_cHRM(write_ptr, write_info_ptr, white_x, white_y, red_x,
red_y, green_x, green_y, blue_x, blue_y);
{
double gamma;
- if (png_get_gAMA(read_ptr, read_info_ptr, &gamma))
+ if (png_get_gAMA(read_ptr, read_info_ptr, &gamma) != 0)
png_set_gAMA(write_ptr, write_info_ptr, gamma);
}
#endif
int compression_type;
if (png_get_iCCP(read_ptr, read_info_ptr, &name, &compression_type,
- &profile, &proflen))
+ &profile, &proflen) != 0)
{
png_set_iCCP(write_ptr, write_info_ptr, name, compression_type,
profile, proflen);
{
int intent;
- if (png_get_sRGB(read_ptr, read_info_ptr, &intent))
+ if (png_get_sRGB(read_ptr, read_info_ptr, &intent) != 0)
png_set_sRGB(write_ptr, write_info_ptr, intent);
}
#endif
png_colorp palette;
int num_palette;
- if (png_get_PLTE(read_ptr, read_info_ptr, &palette, &num_palette))
+ if (png_get_PLTE(read_ptr, read_info_ptr, &palette, &num_palette) != 0)
png_set_PLTE(write_ptr, write_info_ptr, palette, num_palette);
}
#ifdef PNG_bKGD_SUPPORTED
{
png_color_16p background;
- if (png_get_bKGD(read_ptr, read_info_ptr, &background))
+ if (png_get_bKGD(read_ptr, read_info_ptr, &background) != 0)
{
png_set_bKGD(write_ptr, write_info_ptr, background);
}
{
png_uint_16p hist;
- if (png_get_hIST(read_ptr, read_info_ptr, &hist))
+ if (png_get_hIST(read_ptr, read_info_ptr, &hist) != 0)
png_set_hIST(write_ptr, write_info_ptr, hist);
}
#endif
int unit_type;
if (png_get_oFFs(read_ptr, read_info_ptr, &offset_x, &offset_y,
- &unit_type))
+ &unit_type) != 0)
{
png_set_oFFs(write_ptr, write_info_ptr, offset_x, offset_y, unit_type);
}
int type, nparams;
if (png_get_pCAL(read_ptr, read_info_ptr, &purpose, &X0, &X1, &type,
- &nparams, &units, ¶ms))
+ &nparams, &units, ¶ms) != 0)
{
png_set_pCAL(write_ptr, write_info_ptr, purpose, X0, X1, type,
nparams, units, params);
png_uint_32 res_x, res_y;
int unit_type;
- if (png_get_pHYs(read_ptr, read_info_ptr, &res_x, &res_y, &unit_type))
+ if (png_get_pHYs(read_ptr, read_info_ptr, &res_x, &res_y,
+ &unit_type) != 0)
png_set_pHYs(write_ptr, write_info_ptr, res_x, res_y, unit_type);
}
#endif
{
png_color_8p sig_bit;
- if (png_get_sBIT(read_ptr, read_info_ptr, &sig_bit))
+ if (png_get_sBIT(read_ptr, read_info_ptr, &sig_bit) != 0)
png_set_sBIT(write_ptr, write_info_ptr, sig_bit);
}
#endif
double scal_width, scal_height;
if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &scal_width,
- &scal_height))
+ &scal_height) != 0)
{
png_set_sCAL(write_ptr, write_info_ptr, unit, scal_width, scal_height);
}
png_charp scal_width, scal_height;
if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &scal_width,
- &scal_height))
+ &scal_height) != 0)
{
png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width,
scal_height);
#endif
#endif
#endif
+
+#ifdef PNG_sPLT_SUPPORTED
+ {
+ png_sPLT_tp entries;
+
+ int num_entries = (int) png_get_sPLT(read_ptr, read_info_ptr, &entries);
+ if (num_entries)
+ {
+ png_set_sPLT(write_ptr, write_info_ptr, entries, num_entries);
+ }
+ }
+#endif
+
#ifdef PNG_TEXT_SUPPORTED
{
png_textp text_ptr;
{
png_timep mod_time;
- if (png_get_tIME(read_ptr, read_info_ptr, &mod_time))
+ if (png_get_tIME(read_ptr, read_info_ptr, &mod_time) != 0)
{
png_set_tIME(write_ptr, write_info_ptr, mod_time);
#ifdef PNG_TIME_RFC1123_SUPPORTED
- if (png_convert_to_rfc1123_buffer(tIME_string, mod_time))
+ if (png_convert_to_rfc1123_buffer(tIME_string, mod_time) != 0)
tIME_string[(sizeof tIME_string) - 1] = '\0';
else
}
tIME_chunk_present++;
-#endif /* PNG_TIME_RFC1123_SUPPORTED */
+#endif /* TIME_RFC1123 */
}
}
#endif
png_color_16p trans_color;
if (png_get_tRNS(read_ptr, read_info_ptr, &trans_alpha, &num_trans,
- &trans_color))
+ &trans_color) != 0)
{
int sample_max = (1 << bit_depth);
/* libpng doesn't reject a tRNS chunk with out-of-range samples */
#endif /* SINGLE_ROWBUF_ALLOC */
pngtest_debug("Writing row data");
-#ifdef PNG_READ_INTERLACING_SUPPORTED
- num_pass = png_set_interlace_handling(read_ptr);
- if (png_set_interlace_handling(write_ptr) != num_pass)
- png_error(write_ptr, "png_set_interlace_handling: inconsistent num_pass");
-#endif
+#if defined(PNG_READ_INTERLACING_SUPPORTED) &&\
+ defined(PNG_WRITE_INTERLACING_SUPPORTED)
+ /* Both must be defined for libpng to be able to handle the interlace,
+ * otherwise it gets handled below by simply reading and writing the passes
+ * directly.
+ */
+ if (png_set_interlace_handling(read_ptr) != num_passes)
+ png_error(write_ptr,
+ "png_set_interlace_handling(read): wrong pass count ");
+ if (png_set_interlace_handling(write_ptr) != num_passes)
+ png_error(write_ptr,
+ "png_set_interlace_handling(write): wrong pass count ");
+#else /* png_set_interlace_handling not called on either read or write */
+# define calc_pass_height
+#endif /* not using libpng interlace handling */
#ifdef PNGTEST_TIMING
t_stop = (float)clock();
t_misc += (t_stop - t_start);
t_start = t_stop;
#endif
- for (pass = 0; pass < num_pass; pass++)
+ for (pass = 0; pass < num_passes; pass++)
{
+# ifdef calc_pass_height
+ png_uint_32 pass_height;
+
+ if (num_passes == 7) /* interlaced */
+ {
+ if (PNG_PASS_COLS(width, pass) > 0)
+ pass_height = PNG_PASS_ROWS(height, pass);
+
+ else
+ pass_height = 0;
+ }
+
+ else /* not interlaced */
+ pass_height = height;
+# else
+# define pass_height height
+# endif
+
pngtest_debug1("Writing row data for pass %d", pass);
- for (y = 0; y < height; y++)
+ for (y = 0; y < pass_height; y++)
{
#ifndef SINGLE_ROWBUF_ALLOC
pngtest_debug2("Allocating row buffer (pass %d, y = %u)...", pass, y);
+
row_buf = (png_bytep)png_malloc(read_ptr,
png_get_rowbytes(read_ptr, read_info_ptr));
- pngtest_debug2("\t0x%08lx (%u bytes)", (unsigned long)row_buf,
- png_get_rowbytes(read_ptr, read_info_ptr));
+ pngtest_debug2("\t0x%08lx (%lu bytes)", (unsigned long)row_buf,
+ (unsigned long)png_get_rowbytes(read_ptr, read_info_ptr));
#endif /* !SINGLE_ROWBUF_ALLOC */
png_read_rows(read_ptr, (png_bytepp)&row_buf, NULL, 1);
t_encode += (t_stop - t_start);
t_start = t_stop;
#endif
-#endif /* PNG_WRITE_SUPPORTED */
+#endif /* WRITE */
#ifndef SINGLE_ROWBUF_ALLOC
pngtest_debug2("Freeing row buffer (pass %d, y = %u)", pass, y);
{
png_timep mod_time;
- if (png_get_tIME(read_ptr, end_info_ptr, &mod_time))
+ if (png_get_tIME(read_ptr, end_info_ptr, &mod_time) != 0)
{
png_set_tIME(write_ptr, write_end_info_ptr, mod_time);
#ifdef PNG_TIME_RFC1123_SUPPORTED
- if (png_convert_to_rfc1123_buffer(tIME_string, mod_time))
+ if (png_convert_to_rfc1123_buffer(tIME_string, mod_time) != 0)
tIME_string[(sizeof tIME_string) - 1] = '\0';
else
}
tIME_chunk_present++;
-#endif /* PNG_TIME_RFC1123_SUPPORTED */
+#endif /* TIME_RFC1123 */
}
}
#endif
}
# ifdef PNG_WRITE_SUPPORTED
- /* If there we no write support nothing was written! */
+ /* If there is no write support nothing was written! */
else if (unsupported_chunks > 0)
{
fprintf(STDERR, "\n %s: unsupported chunks (%d)%s",
return (1);
}
-#ifdef PNG_WRITE_SUPPORTED /* else nothing was written */
+#if defined (PNG_WRITE_SUPPORTED) /* else nothing was written */ &&\
+ defined (PNG_WRITE_FILTER_SUPPORTED)
if (interlace_preserved != 0) /* else the files will be changed */
{
for (;;)
}
}
}
-#endif /* PNG_WRITE_SUPPORTED */
+#endif /* WRITE && WRITE_FILTER */
FCLOSE(fpin);
FCLOSE(fpout);
int multiple = 0;
int ierror = 0;
+ png_structp dummy_ptr;
+
fprintf(STDERR, "\n Testing libpng version %s\n", PNG_LIBPNG_VER_STRING);
fprintf(STDERR, " with zlib version %s\n", ZLIB_VERSION);
fprintf(STDERR, "%s", png_get_copyright(NULL));
}
}
- if (!multiple && argc == 3 + verbose)
+ if (multiple == 0 && argc == 3 + verbose)
outname = argv[2 + verbose];
- if ((!multiple && argc > 3 + verbose) || (multiple && argc < 2))
+ if ((multiple == 0 && argc > 3 + verbose) ||
+ (multiple != 0 && argc < 2))
{
fprintf(STDERR,
"usage: %s [infile.png] [outfile.png]\n\t%s -m {infile.png}\n",
{
int kerror;
fprintf(STDERR, "\n Testing %s:", argv[i]);
+#if PNG_DEBUG > 0
+ fprintf(STDERR, "\n");
+#endif
kerror = test_one_file(argv[i], outname);
if (kerror == 0)
{
-#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
- int k;
-#endif
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
fprintf(STDERR, "\n PASS (%lu zero samples)\n",
(unsigned long)zero_samples);
#else
fprintf(STDERR, " PASS\n");
#endif
-#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
- for (k = 0; k<256; k++)
- if (filters_used[k])
- fprintf(STDERR, " Filter %d was used %lu times\n",
- k, (unsigned long)filters_used[k]);
-#endif
#ifdef PNG_TIME_RFC1123_SUPPORTED
- if (tIME_chunk_present != 0)
- fprintf(STDERR, " tIME = %s\n", tIME_string);
+ if (tIME_chunk_present != 0)
+ fprintf(STDERR, " tIME = %s\n", tIME_string);
- tIME_chunk_present = 0;
-#endif /* PNG_TIME_RFC1123_SUPPORTED */
+ tIME_chunk_present = 0;
+#endif /* TIME_RFC1123 */
}
else
while (pinfo != NULL)
{
- fprintf(STDERR, " %lu bytes at %x\n",
+ fprintf(STDERR, " %lu bytes at %p\n",
(unsigned long)pinfo->size,
- (unsigned int)pinfo->pointer);
+ pinfo->pointer);
pinfo = pinfo->next;
}
}
status_dots_requested = 0;
if (i == 0 || verbose == 1 || ierror != 0)
+ {
fprintf(STDERR, "\n Testing %s:", inname);
+#if PNG_DEBUG > 0
+ fprintf(STDERR, "\n");
+#endif
+ }
kerror = test_one_file(inname, outname);
{
if (verbose == 1 || i == 2)
{
-#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
- int k;
-#endif
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
fprintf(STDERR, "\n PASS (%lu zero samples)\n",
(unsigned long)zero_samples);
#else
fprintf(STDERR, " PASS\n");
#endif
-#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
- for (k = 0; k<256; k++)
- if (filters_used[k])
- fprintf(STDERR, " Filter %d was used %lu times\n",
- k, (unsigned long)filters_used[k]);
-#endif
#ifdef PNG_TIME_RFC1123_SUPPORTED
if (tIME_chunk_present != 0)
fprintf(STDERR, " tIME = %s\n", tIME_string);
-#endif /* PNG_TIME_RFC1123_SUPPORTED */
+#endif /* TIME_RFC1123 */
}
}
else
{
if (verbose == 0 && i != 2)
+ {
fprintf(STDERR, "\n Testing %s:", inname);
+#if PNG_DEBUG > 0
+ fprintf(STDERR, "\n");
+#endif
+ }
fprintf(STDERR, " FAIL\n");
ierror += kerror;
while (pinfo != NULL)
{
- fprintf(STDERR, " %lu bytes at %x\n",
- (unsigned long)pinfo->size, (unsigned int)pinfo->pointer);
+ fprintf(STDERR, " %lu bytes at %p\n",
+ (unsigned long)pinfo->size, pinfo->pointer);
pinfo = pinfo->next;
}
}
else
fprintf(STDERR, " libpng FAILS test\n");
+ dummy_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+ fprintf(STDERR, " Default limits:\n");
+ fprintf(STDERR, " width_max = %lu\n",
+ (unsigned long) png_get_user_width_max(dummy_ptr));
+ fprintf(STDERR, " height_max = %lu\n",
+ (unsigned long) png_get_user_height_max(dummy_ptr));
+ if (png_get_chunk_cache_max(dummy_ptr) == 0)
+ fprintf(STDERR, " cache_max = unlimited\n");
+ else
+ fprintf(STDERR, " cache_max = %lu\n",
+ (unsigned long) png_get_chunk_cache_max(dummy_ptr));
+ if (png_get_chunk_malloc_max(dummy_ptr) == 0)
+ fprintf(STDERR, " malloc_max = unlimited\n");
+ else
+ fprintf(STDERR, " malloc_max = %lu\n",
+ (unsigned long) png_get_chunk_malloc_max(dummy_ptr));
+ png_destroy_read_struct(&dummy_ptr, NULL, NULL);
+
return (int)(ierror != 0);
}
#else
#endif
/* Generate a compiler error if there is an old png.h in the search path. */
-typedef png_libpng_version_1_6_13 Your_png_h_is_not_version_1_6_13;
+typedef png_libpng_version_1_6_21 Your_png_h_is_not_version_1_6_21;
/* pngtrans.c - transforms the data in a row (used by both readers and writers)
*
- * Last changed in libpng 1.6.11 [June 5, 2014]
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.18 [July 23, 2015]
+ * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
#endif
#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED)
-/* Turn on 16 bit byte swapping */
+/* Turn on 16-bit byte swapping */
void PNGAPI
png_set_swap(png_structrp png_ptr)
{
{
png_debug(1, "in png_set_interlace handling");
- if (png_ptr && png_ptr->interlaced)
+ if (png_ptr != 0 && png_ptr->interlaced != 0)
{
png_ptr->transformations |= PNG_INTERLACE;
return (7);
/* In libpng 1.6 it is possible to determine whether this is a read or write
* operation and therefore to do more checking here for a valid call.
*/
- if (png_ptr->mode & PNG_IS_READ_STRUCT)
+ if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0)
{
# ifdef PNG_READ_FILLER_SUPPORTED
/* On read png_set_filler is always valid, regardless of the base PNG
png_set_filler(png_ptr, filler, filler_loc);
/* The above may fail to do anything. */
- if (png_ptr->transformations & PNG_FILLER)
+ if ((png_ptr->transformations & PNG_FILLER) != 0)
png_ptr->transformations |= PNG_ADD_ALPHA;
}
#ifdef PNG_16BIT_SUPPORTED
#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED)
-/* Swaps byte order on 16 bit depth images */
+/* Swaps byte order on 16-bit depth images */
void /* PRIVATE */
png_do_swap(png_row_infop row_info, png_bytep row)
{
*rp = table[*rp];
}
}
-#endif /* PNG_READ_PACKSWAP_SUPPORTED or PNG_WRITE_PACKSWAP_SUPPORTED */
+#endif /* PACKSWAP || WRITE_PACKSWAP */
#if defined(PNG_WRITE_FILLER_SUPPORTED) || \
defined(PNG_READ_STRIP_ALPHA_SUPPORTED)
{
png_debug(1, "in png_do_bgr");
- if ((row_info->color_type & PNG_COLOR_MASK_COLOR))
+ if ((row_info->color_type & PNG_COLOR_MASK_COLOR) != 0)
{
png_uint_32 row_width = row_info->width;
if (row_info->bit_depth == 8)
#endif
}
}
-#endif /* PNG_READ_BGR_SUPPORTED or PNG_WRITE_BGR_SUPPORTED */
+#endif /* READ_BGR || WRITE_BGR */
#if defined(PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED) || \
defined(PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED)
*/
for (; rp > png_ptr->row_buf; rp--)
{
- if (*rp >> padding != 0)
+ if ((*rp >> padding) != 0)
png_ptr->num_palette_max = 1;
padding = 0;
}
}
}
}
-#endif /* PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED */
+#endif /* CHECK_FOR_INVALID_INDEX */
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
png_uint_32 PNGAPI
png_get_current_row_number(png_const_structrp png_ptr)
{
- /* See the comments in png.h - this is the sub-image row when reading and
+ /* See the comments in png.h - this is the sub-image row when reading an
* interlaced image.
*/
if (png_ptr != NULL)
return png_ptr->pass;
return 8; /* invalid */
}
-#endif /* PNG_USER_TRANSFORM_INFO_SUPPORTED */
-#endif /* PNG_READ_USER_TRANSFORM_SUPPORTED ||
- PNG_WRITE_USER_TRANSFORM_SUPPORTED */
-#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */
+#endif /* USER_TRANSFORM_INFO */
+#endif /* READ_USER_TRANSFORM || WRITE_USER_TRANSFORM */
+#endif /* READ || WRITE */
# here by entering the appropriate values as #defines preceded by '@' (to cause,
# them to be passed through to the build of pnglibconf.h), for example:
#
-# @# define PNG_USER_WIDTH_MAX 1000000
-# @# define PNG_USER_HEIGHT_MAX 1000000
-# @# define PNG_USER_CHUNK_CACHE_MAX 128
-# @# define PNG_USER_CHUNK_MALLOC_MAX 8000000
+# @# define PNG_USER_WIDTH_MAX 65535
+# @# define PNG_USER_HEIGHT_MAX 65535
+# @# define PNG_USER_CHUNK_CACHE_MAX 256
+# @# define PNG_USER_CHUNK_MALLOC_MAX 640000
/* pngwio.c - functions for data output
*
- * Last changed in libpng 1.6.9 [February 6, 2014]
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.15 [November 20, 2014]
+ * Copyright (c) 1998-2002,2004,2006-2014 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* writes to a file pointer. Note that this routine sometimes gets called
* with very small lengths, so you should implement some kind of simple
* buffering if you are using unbuffered writes. This should never be asked
- * to write more than 64K on a 16 bit machine.
+ * to write more than 64K on a 16-bit machine.
*/
void /* PRIVATE */
# endif
#else
PNG_UNUSED(output_flush_fn)
-#endif /* PNG_WRITE_FLUSH_SUPPORTED */
+#endif /* WRITE_FLUSH */
#ifdef PNG_READ_SUPPORTED
/* It is an error to read while writing a png file */
}
#endif
}
-#endif /* PNG_WRITE_SUPPORTED */
+#endif /* WRITE */
/* pngwrite.c - general routines to write a PNG file
*
- * Last changed in libpng 1.6.11 [June 5, 2014]
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.19 [November 12, 2015]
+ * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
write_unknown_chunks(png_structrp png_ptr, png_const_inforp info_ptr,
unsigned int where)
{
- if (info_ptr->unknown_chunks_num)
+ if (info_ptr->unknown_chunks_num != 0)
{
png_const_unknown_chunkp up;
for (up = info_ptr->unknown_chunks;
up < info_ptr->unknown_chunks + info_ptr->unknown_chunks_num;
++up)
- if (up->location & where)
+ if ((up->location & where) != 0)
{
/* If per-chunk unknown chunk handling is enabled use it, otherwise
* just write the chunks the application has set.
}
}
}
-#endif /* PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED */
+#endif /* WRITE_UNKNOWN_CHUNKS */
/* Writes all the PNG information. This is the suggested way to use the
* library. If you have a new chunk to add, make a function to write it,
if (png_ptr == NULL || info_ptr == NULL)
return;
- if (!(png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE))
+ if ((png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE) == 0)
{
- /* Write PNG signature */
- png_write_sig(png_ptr);
+ /* Write PNG signature */
+ png_write_sig(png_ptr);
#ifdef PNG_MNG_FEATURES_SUPPORTED
- if ((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) && \
- (png_ptr->mng_features_permitted))
- {
- png_warning(png_ptr, "MNG features are not allowed in a PNG datastream");
- png_ptr->mng_features_permitted = 0;
- }
+ if ((png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) != 0 && \
+ png_ptr->mng_features_permitted != 0)
+ {
+ png_warning(png_ptr,
+ "MNG features are not allowed in a PNG datastream");
+ png_ptr->mng_features_permitted = 0;
+ }
#endif
- /* Write IHDR information. */
- png_write_IHDR(png_ptr, info_ptr->width, info_ptr->height,
- info_ptr->bit_depth, info_ptr->color_type, info_ptr->compression_type,
- info_ptr->filter_type,
+ /* Write IHDR information. */
+ png_write_IHDR(png_ptr, info_ptr->width, info_ptr->height,
+ info_ptr->bit_depth, info_ptr->color_type, info_ptr->compression_type,
+ info_ptr->filter_type,
#ifdef PNG_WRITE_INTERLACING_SUPPORTED
- info_ptr->interlace_type
+ info_ptr->interlace_type
#else
- 0
+ 0
#endif
- );
+ );
- /* The rest of these check to see if the valid field has the appropriate
- * flag set, and if it does, writes the chunk.
- *
- * 1.6.0: COLORSPACE support controls the writing of these chunks too, and
- * the chunks will be written if the WRITE routine is there and information
- * is available in the COLORSPACE. (See png_colorspace_sync_info in png.c
- * for where the valid flags get set.)
- *
- * Under certain circumstances the colorspace can be invalidated without
- * syncing the info_struct 'valid' flags; this happens if libpng detects and
- * error and calls png_error while the color space is being set, yet the
- * application continues writing the PNG. So check the 'invalid' flag here
- * too.
- */
+ /* The rest of these check to see if the valid field has the appropriate
+ * flag set, and if it does, writes the chunk.
+ *
+ * 1.6.0: COLORSPACE support controls the writing of these chunks too, and
+ * the chunks will be written if the WRITE routine is there and
+ * information * is available in the COLORSPACE. (See
+ * png_colorspace_sync_info in png.c for where the valid flags get set.)
+ *
+ * Under certain circumstances the colorspace can be invalidated without
+ * syncing the info_struct 'valid' flags; this happens if libpng detects
+ * an error and calls png_error while the color space is being set, yet
+ * the application continues writing the PNG. So check the 'invalid'
+ * flag here too.
+ */
#ifdef PNG_GAMMA_SUPPORTED
# ifdef PNG_WRITE_gAMA_SUPPORTED
- if (!(info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) &&
- (info_ptr->colorspace.flags & PNG_COLORSPACE_FROM_gAMA) &&
- (info_ptr->valid & PNG_INFO_gAMA))
+ if ((info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) == 0 &&
+ (info_ptr->colorspace.flags & PNG_COLORSPACE_FROM_gAMA) != 0 &&
+ (info_ptr->valid & PNG_INFO_gAMA) != 0)
png_write_gAMA_fixed(png_ptr, info_ptr->colorspace.gamma);
# endif
#endif
#ifdef PNG_COLORSPACE_SUPPORTED
- /* Write only one of sRGB or an ICC profile. If a profile was supplied
- * and it matches one of the known sRGB ones issue a warning.
- */
+ /* Write only one of sRGB or an ICC profile. If a profile was supplied
+ * and it matches one of the known sRGB ones issue a warning.
+ */
# ifdef PNG_WRITE_iCCP_SUPPORTED
- if (!(info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) &&
- (info_ptr->valid & PNG_INFO_iCCP))
- {
-# ifdef PNG_WRITE_sRGB_SUPPORTED
- if (info_ptr->valid & PNG_INFO_sRGB)
- png_app_warning(png_ptr,
- "profile matches sRGB but writing iCCP instead");
-# endif
-
- png_write_iCCP(png_ptr, info_ptr->iccp_name,
- info_ptr->iccp_profile);
- }
+ if ((info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) == 0 &&
+ (info_ptr->valid & PNG_INFO_iCCP) != 0)
+ {
+# ifdef PNG_WRITE_sRGB_SUPPORTED
+ if ((info_ptr->valid & PNG_INFO_sRGB) != 0)
+ png_app_warning(png_ptr,
+ "profile matches sRGB but writing iCCP instead");
+# endif
+
+ png_write_iCCP(png_ptr, info_ptr->iccp_name,
+ info_ptr->iccp_profile);
+ }
# ifdef PNG_WRITE_sRGB_SUPPORTED
else
# endif
# endif
# ifdef PNG_WRITE_sRGB_SUPPORTED
- if (!(info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) &&
- (info_ptr->valid & PNG_INFO_sRGB))
- png_write_sRGB(png_ptr, info_ptr->colorspace.rendering_intent);
+ if ((info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) == 0 &&
+ (info_ptr->valid & PNG_INFO_sRGB) != 0)
+ png_write_sRGB(png_ptr, info_ptr->colorspace.rendering_intent);
# endif /* WRITE_sRGB */
#endif /* COLORSPACE */
#ifdef PNG_WRITE_sBIT_SUPPORTED
- if (info_ptr->valid & PNG_INFO_sBIT)
- png_write_sBIT(png_ptr, &(info_ptr->sig_bit), info_ptr->color_type);
+ if ((info_ptr->valid & PNG_INFO_sBIT) != 0)
+ png_write_sBIT(png_ptr, &(info_ptr->sig_bit), info_ptr->color_type);
#endif
#ifdef PNG_COLORSPACE_SUPPORTED
# ifdef PNG_WRITE_cHRM_SUPPORTED
- if (!(info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) &&
- (info_ptr->colorspace.flags & PNG_COLORSPACE_FROM_cHRM) &&
- (info_ptr->valid & PNG_INFO_cHRM))
- png_write_cHRM_fixed(png_ptr, &info_ptr->colorspace.end_points_xy);
+ if ((info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) == 0 &&
+ (info_ptr->colorspace.flags & PNG_COLORSPACE_FROM_cHRM) != 0 &&
+ (info_ptr->valid & PNG_INFO_cHRM) != 0)
+ png_write_cHRM_fixed(png_ptr, &info_ptr->colorspace.end_points_xy);
# endif
#endif
#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
- write_unknown_chunks(png_ptr, info_ptr, PNG_HAVE_IHDR);
+ write_unknown_chunks(png_ptr, info_ptr, PNG_HAVE_IHDR);
#endif
png_ptr->mode |= PNG_WROTE_INFO_BEFORE_PLTE;
png_write_info_before_PLTE(png_ptr, info_ptr);
- if (info_ptr->valid & PNG_INFO_PLTE)
+ if ((info_ptr->valid & PNG_INFO_PLTE) != 0)
png_write_PLTE(png_ptr, info_ptr->palette,
(png_uint_32)info_ptr->num_palette);
png_error(png_ptr, "Valid palette required for paletted images");
#ifdef PNG_WRITE_tRNS_SUPPORTED
- if (info_ptr->valid & PNG_INFO_tRNS)
+ if ((info_ptr->valid & PNG_INFO_tRNS) !=0)
{
#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED
/* Invert the alpha channel (in tRNS) */
- if ((png_ptr->transformations & PNG_INVERT_ALPHA) &&
+ if ((png_ptr->transformations & PNG_INVERT_ALPHA) != 0 &&
info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
{
- int j;
- for (j = 0; j<(int)info_ptr->num_trans; j++)
+ int j, jend;
+
+ jend = info_ptr->num_trans;
+ if (jend > PNG_MAX_PALETTE_LENGTH)
+ jend = PNG_MAX_PALETTE_LENGTH;
+
+ for (j = 0; j<jend; ++j)
info_ptr->trans_alpha[j] =
(png_byte)(255 - info_ptr->trans_alpha[j]);
}
}
#endif
#ifdef PNG_WRITE_bKGD_SUPPORTED
- if (info_ptr->valid & PNG_INFO_bKGD)
+ if ((info_ptr->valid & PNG_INFO_bKGD) != 0)
png_write_bKGD(png_ptr, &(info_ptr->background), info_ptr->color_type);
#endif
#ifdef PNG_WRITE_hIST_SUPPORTED
- if (info_ptr->valid & PNG_INFO_hIST)
+ if ((info_ptr->valid & PNG_INFO_hIST) != 0)
png_write_hIST(png_ptr, info_ptr->hist, info_ptr->num_palette);
#endif
#ifdef PNG_WRITE_oFFs_SUPPORTED
- if (info_ptr->valid & PNG_INFO_oFFs)
+ if ((info_ptr->valid & PNG_INFO_oFFs) != 0)
png_write_oFFs(png_ptr, info_ptr->x_offset, info_ptr->y_offset,
info_ptr->offset_unit_type);
#endif
#ifdef PNG_WRITE_pCAL_SUPPORTED
- if (info_ptr->valid & PNG_INFO_pCAL)
+ if ((info_ptr->valid & PNG_INFO_pCAL) != 0)
png_write_pCAL(png_ptr, info_ptr->pcal_purpose, info_ptr->pcal_X0,
info_ptr->pcal_X1, info_ptr->pcal_type, info_ptr->pcal_nparams,
info_ptr->pcal_units, info_ptr->pcal_params);
#endif
#ifdef PNG_WRITE_sCAL_SUPPORTED
- if (info_ptr->valid & PNG_INFO_sCAL)
+ if ((info_ptr->valid & PNG_INFO_sCAL) != 0)
png_write_sCAL_s(png_ptr, (int)info_ptr->scal_unit,
info_ptr->scal_s_width, info_ptr->scal_s_height);
#endif /* sCAL */
#ifdef PNG_WRITE_pHYs_SUPPORTED
- if (info_ptr->valid & PNG_INFO_pHYs)
+ if ((info_ptr->valid & PNG_INFO_pHYs) != 0)
png_write_pHYs(png_ptr, info_ptr->x_pixels_per_unit,
info_ptr->y_pixels_per_unit, info_ptr->phys_unit_type);
#endif /* pHYs */
#ifdef PNG_WRITE_tIME_SUPPORTED
- if (info_ptr->valid & PNG_INFO_tIME)
+ if ((info_ptr->valid & PNG_INFO_tIME) != 0)
{
png_write_tIME(png_ptr, &(info_ptr->mod_time));
png_ptr->mode |= PNG_WROTE_tIME;
#endif /* tIME */
#ifdef PNG_WRITE_sPLT_SUPPORTED
- if (info_ptr->valid & PNG_INFO_sPLT)
+ if ((info_ptr->valid & PNG_INFO_sPLT) != 0)
for (i = 0; i < (int)info_ptr->splt_palettes_num; i++)
png_write_sPLT(png_ptr, info_ptr->splt_palettes + i);
#endif /* sPLT */
info_ptr->text[i].lang,
info_ptr->text[i].lang_key,
info_ptr->text[i].text);
+ /* Mark this chunk as written */
+ if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE)
+ info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR;
+ else
+ info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR;
#else
- png_warning(png_ptr, "Unable to write international text");
+ png_warning(png_ptr, "Unable to write international text");
#endif
- /* Mark this chunk as written */
- info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR;
}
/* If we want a compressed text chunk */
#ifdef PNG_WRITE_zTXt_SUPPORTED
/* Write compressed chunk */
png_write_zTXt(png_ptr, info_ptr->text[i].key,
- info_ptr->text[i].text, 0,
- info_ptr->text[i].compression);
+ info_ptr->text[i].text, info_ptr->text[i].compression);
+ /* Mark this chunk as written */
+ info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR;
#else
png_warning(png_ptr, "Unable to write compressed text");
#endif
- /* Mark this chunk as written */
- info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR;
}
else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE)
if (png_ptr == NULL)
return;
- if (!(png_ptr->mode & PNG_HAVE_IDAT))
+ if ((png_ptr->mode & PNG_HAVE_IDAT) == 0)
png_error(png_ptr, "No IDATs written into file");
#ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
#endif
#ifdef PNG_WRITE_tIME_SUPPORTED
/* Check to see if user has supplied a time chunk */
- if ((info_ptr->valid & PNG_INFO_tIME) &&
- !(png_ptr->mode & PNG_WROTE_tIME))
+ if ((info_ptr->valid & PNG_INFO_tIME) != 0 &&
+ (png_ptr->mode & PNG_WROTE_tIME) == 0)
png_write_tIME(png_ptr, &(info_ptr->mod_time));
#endif
info_ptr->text[i].lang,
info_ptr->text[i].lang_key,
info_ptr->text[i].text);
+ /* Mark this chunk as written */
+ if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE)
+ info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR;
+ else
+ info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR;
#else
png_warning(png_ptr, "Unable to write international text");
#endif
- /* Mark this chunk as written */
- info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR;
}
else if (info_ptr->text[i].compression >= PNG_TEXT_COMPRESSION_zTXt)
#ifdef PNG_WRITE_zTXt_SUPPORTED
/* Write compressed chunk */
png_write_zTXt(png_ptr, info_ptr->text[i].key,
- info_ptr->text[i].text, 0,
- info_ptr->text[i].compression);
+ info_ptr->text[i].text, info_ptr->text[i].compression);
+ /* Mark this chunk as written */
+ info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR;
#else
png_warning(png_ptr, "Unable to write compressed text");
#endif
- /* Mark this chunk as written */
- info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR;
}
else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE)
/* Write uncompressed chunk */
png_write_tEXt(png_ptr, info_ptr->text[i].key,
info_ptr->text[i].text, 0);
+ /* Mark this chunk as written */
+ info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR;
#else
png_warning(png_ptr, "Unable to write uncompressed text");
#endif
-
- /* Mark this chunk as written */
- info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR;
}
}
#endif
{
png_structrp png_ptr = png_create_png_struct(user_png_ver, error_ptr,
error_fn, warn_fn, mem_ptr, malloc_fn, free_fn);
-#endif /* PNG_USER_MEM_SUPPORTED */
+#endif /* USER_MEM */
if (png_ptr != NULL)
{
/* Set the zlib control values to defaults; they can be overridden by the
png_ptr->zlib_text_mem_level = 8;
png_ptr->zlib_text_window_bits = 15;
png_ptr->zlib_text_method = 8;
-#endif /* PNG_WRITE_COMPRESSED_TEXT_SUPPORTED */
+#endif /* WRITE_COMPRESSED_TEXT */
/* This is a highly dubious configuration option; by default it is off,
* but it may be appropriate for private builds that are testing
/* App warnings are warnings in release (or release candidate) builds but
* are errors during development.
*/
-#if PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC
+#if PNG_RELEASE_BUILD
png_ptr->flags |= PNG_FLAG_APP_WARNINGS_WARN;
#endif
{
png_debug(1, "in png_do_write_intrapixel");
- if ((row_info->color_type & PNG_COLOR_MASK_COLOR))
+ if ((row_info->color_type & PNG_COLOR_MASK_COLOR) != 0)
{
int bytes_per_pixel;
png_uint_32 row_width = row_info->width;
for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
{
- *(rp) = (png_byte)((*rp - *(rp + 1)) & 0xff);
- *(rp + 2) = (png_byte)((*(rp + 2) - *(rp + 1)) & 0xff);
+ *(rp) = (png_byte)(*rp - *(rp + 1));
+ *(rp + 2) = (png_byte)(*(rp + 2) - *(rp + 1));
}
}
png_uint_32 s2 = (*(rp + 4) << 8) | *(rp + 5);
png_uint_32 red = (png_uint_32)((s0 - s1) & 0xffffL);
png_uint_32 blue = (png_uint_32)((s2 - s1) & 0xffffL);
- *(rp ) = (png_byte)((red >> 8) & 0xff);
- *(rp + 1) = (png_byte)(red & 0xff);
- *(rp + 4) = (png_byte)((blue >> 8) & 0xff);
- *(rp + 5) = (png_byte)(blue & 0xff);
+ *(rp ) = (png_byte)(red >> 8);
+ *(rp + 1) = (png_byte)red;
+ *(rp + 4) = (png_byte)(blue >> 8);
+ *(rp + 5) = (png_byte)blue;
}
}
-#endif /* PNG_WRITE_16BIT_SUPPORTED */
+#endif /* WRITE_16BIT */
}
}
-#endif /* PNG_MNG_FEATURES_SUPPORTED */
+#endif /* MNG_FEATURES */
/* Called by user to write a row of image data */
void PNGAPI
if (png_ptr->row_number == 0 && png_ptr->pass == 0)
{
/* Make sure we wrote the header info */
- if (!(png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE))
+ if ((png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE) == 0)
png_error(png_ptr,
"png_write_info was never called before png_write_row");
/* Check for transforms that have been set but were defined out */
#if !defined(PNG_WRITE_INVERT_SUPPORTED) && defined(PNG_READ_INVERT_SUPPORTED)
- if (png_ptr->transformations & PNG_INVERT_MONO)
+ if ((png_ptr->transformations & PNG_INVERT_MONO) != 0)
png_warning(png_ptr, "PNG_WRITE_INVERT_SUPPORTED is not defined");
#endif
#if !defined(PNG_WRITE_FILLER_SUPPORTED) && defined(PNG_READ_FILLER_SUPPORTED)
- if (png_ptr->transformations & PNG_FILLER)
+ if ((png_ptr->transformations & PNG_FILLER) != 0)
png_warning(png_ptr, "PNG_WRITE_FILLER_SUPPORTED is not defined");
#endif
#if !defined(PNG_WRITE_PACKSWAP_SUPPORTED) && \
defined(PNG_READ_PACKSWAP_SUPPORTED)
- if (png_ptr->transformations & PNG_PACKSWAP)
+ if ((png_ptr->transformations & PNG_PACKSWAP) != 0)
png_warning(png_ptr,
"PNG_WRITE_PACKSWAP_SUPPORTED is not defined");
#endif
#if !defined(PNG_WRITE_PACK_SUPPORTED) && defined(PNG_READ_PACK_SUPPORTED)
- if (png_ptr->transformations & PNG_PACK)
+ if ((png_ptr->transformations & PNG_PACK) != 0)
png_warning(png_ptr, "PNG_WRITE_PACK_SUPPORTED is not defined");
#endif
#if !defined(PNG_WRITE_SHIFT_SUPPORTED) && defined(PNG_READ_SHIFT_SUPPORTED)
- if (png_ptr->transformations & PNG_SHIFT)
+ if ((png_ptr->transformations & PNG_SHIFT) != 0)
png_warning(png_ptr, "PNG_WRITE_SHIFT_SUPPORTED is not defined");
#endif
#if !defined(PNG_WRITE_BGR_SUPPORTED) && defined(PNG_READ_BGR_SUPPORTED)
- if (png_ptr->transformations & PNG_BGR)
+ if ((png_ptr->transformations & PNG_BGR) != 0)
png_warning(png_ptr, "PNG_WRITE_BGR_SUPPORTED is not defined");
#endif
#if !defined(PNG_WRITE_SWAP_SUPPORTED) && defined(PNG_READ_SWAP_SUPPORTED)
- if (png_ptr->transformations & PNG_SWAP_BYTES)
+ if ((png_ptr->transformations & PNG_SWAP_BYTES) != 0)
png_warning(png_ptr, "PNG_WRITE_SWAP_SUPPORTED is not defined");
#endif
#ifdef PNG_WRITE_INTERLACING_SUPPORTED
/* If interlaced and not interested in row, return */
- if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE))
+ if (png_ptr->interlaced != 0 &&
+ (png_ptr->transformations & PNG_INTERLACE) != 0)
{
switch (png_ptr->pass)
{
case 0:
- if (png_ptr->row_number & 0x07)
+ if ((png_ptr->row_number & 0x07) != 0)
{
png_write_finish_row(png_ptr);
return;
break;
case 1:
- if ((png_ptr->row_number & 0x07) || png_ptr->width < 5)
+ if ((png_ptr->row_number & 0x07) != 0 || png_ptr->width < 5)
{
png_write_finish_row(png_ptr);
return;
break;
case 3:
- if ((png_ptr->row_number & 0x03) || png_ptr->width < 3)
+ if ((png_ptr->row_number & 0x03) != 0 || png_ptr->width < 3)
{
png_write_finish_row(png_ptr);
return;
break;
case 5:
- if ((png_ptr->row_number & 0x01) || png_ptr->width < 2)
+ if ((png_ptr->row_number & 0x01) != 0 || png_ptr->width < 2)
{
png_write_finish_row(png_ptr);
return;
break;
case 6:
- if (!(png_ptr->row_number & 0x01))
+ if ((png_ptr->row_number & 0x01) == 0)
{
png_write_finish_row(png_ptr);
return;
#ifdef PNG_WRITE_INTERLACING_SUPPORTED
/* Handle interlacing */
if (png_ptr->interlaced && png_ptr->pass < 6 &&
- (png_ptr->transformations & PNG_INTERLACE))
+ (png_ptr->transformations & PNG_INTERLACE) != 0)
{
png_do_write_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass);
/* This should always get caught above, but still ... */
#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
/* Handle other transformations */
- if (png_ptr->transformations)
+ if (png_ptr->transformations != 0)
png_do_write_transformations(png_ptr, &row_info);
#endif
* which is also the output depth.
*/
if (row_info.pixel_depth != png_ptr->pixel_depth ||
- row_info.pixel_depth != png_ptr->transformed_pixel_depth)
+ row_info.pixel_depth != png_ptr->transformed_pixel_depth)
png_error(png_ptr, "internal write transform logic error");
#ifdef PNG_MNG_FEATURES_SUPPORTED
* 4. The filter_method is 64 and
* 5. The color_type is RGB or RGBA
*/
- if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) &&
+ if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) != 0 &&
(png_ptr->filter_type == PNG_INTRAPIXEL_DIFFERENCING))
{
/* Intrapixel differencing */
png_ptr->flush_rows = 0;
png_flush(png_ptr);
}
-#endif /* PNG_WRITE_FLUSH_SUPPORTED */
-
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
-static void png_reset_filter_heuristics(png_structrp png_ptr);/* forward decl */
-#endif
+#endif /* WRITE_FLUSH */
/* Free any memory used in png_ptr struct without freeing the struct itself. */
static void
png_debug(1, "in png_write_destroy");
/* Free any memory zlib uses */
- if (png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED)
+ if ((png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) != 0)
deflateEnd(&png_ptr->zstream);
/* Free our memory. png_free checks NULL for us. */
png_free_buffer_list(png_ptr, &png_ptr->zbuffer_list);
png_free(png_ptr, png_ptr->row_buf);
+ png_ptr->row_buf = NULL;
#ifdef PNG_WRITE_FILTER_SUPPORTED
png_free(png_ptr, png_ptr->prev_row);
- png_free(png_ptr, png_ptr->sub_row);
- png_free(png_ptr, png_ptr->up_row);
- png_free(png_ptr, png_ptr->avg_row);
- png_free(png_ptr, png_ptr->paeth_row);
-#endif
-
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
- /* Use this to save a little code space, it doesn't free the filter_costs */
- png_reset_filter_heuristics(png_ptr);
- png_free(png_ptr, png_ptr->filter_costs);
- png_free(png_ptr, png_ptr->inv_filter_costs);
+ png_free(png_ptr, png_ptr->try_row);
+ png_free(png_ptr, png_ptr->tst_row);
+ png_ptr->prev_row = NULL;
+ png_ptr->try_row = NULL;
+ png_ptr->tst_row = NULL;
#endif
#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
png_free(png_ptr, png_ptr->chunk_list);
+ png_ptr->chunk_list = NULL;
#endif
/* The error handling and memory handling information is left intact at this
return;
#ifdef PNG_MNG_FEATURES_SUPPORTED
- if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) &&
+ if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) != 0 &&
(method == PNG_INTRAPIXEL_DIFFERENCING))
method = PNG_FILTER_TYPE_BASE;
case 6:
case 7: png_app_error(png_ptr, "Unknown row filter for method 0");
/* FALL THROUGH */
-#endif /* PNG_WRITE_FILTER_SUPPORTED */
+#endif /* WRITE_FILTER */
case PNG_FILTER_VALUE_NONE:
png_ptr->do_filter = PNG_FILTER_NONE; break;
#else
default:
png_app_error(png_ptr, "Unknown row filter for method 0");
-#endif /* PNG_WRITE_FILTER_SUPPORTED */
+#endif /* WRITE_FILTER */
}
+#ifdef PNG_WRITE_FILTER_SUPPORTED
/* If we have allocated the row_buf, this means we have already started
* with the image and we should have allocated all of the filter buffers
* that have been selected. If prev_row isn't already allocated, then
* it is too late to start using the filters that need it, since we
* will be missing the data in the previous row. If an application
* wants to start and stop using particular filters during compression,
- * it should start out with all of the filters, and then add and
- * remove them after the start of compression.
+ * it should start out with all of the filters, and then remove them
+ * or add them back after the start of compression.
+ *
+ * NOTE: this is a nasty constraint on the code, because it means that the
+ * prev_row buffer must be maintained even if there are currently no
+ * 'prev_row' requiring filters active.
*/
if (png_ptr->row_buf != NULL)
{
-#ifdef PNG_WRITE_FILTER_SUPPORTED
- if ((png_ptr->do_filter & PNG_FILTER_SUB) && png_ptr->sub_row == NULL)
- {
- png_ptr->sub_row = (png_bytep)png_malloc(png_ptr,
- (png_ptr->rowbytes + 1));
- png_ptr->sub_row[0] = PNG_FILTER_VALUE_SUB;
- }
-
- if ((png_ptr->do_filter & PNG_FILTER_UP) && png_ptr->up_row == NULL)
- {
- if (png_ptr->prev_row == NULL)
- {
- png_warning(png_ptr, "Can't add Up filter after starting");
- png_ptr->do_filter = (png_byte)(png_ptr->do_filter &
- ~PNG_FILTER_UP);
- }
-
- else
- {
- png_ptr->up_row = (png_bytep)png_malloc(png_ptr,
- (png_ptr->rowbytes + 1));
- png_ptr->up_row[0] = PNG_FILTER_VALUE_UP;
- }
- }
+ int num_filters;
+ png_alloc_size_t buf_size;
- if ((png_ptr->do_filter & PNG_FILTER_AVG) && png_ptr->avg_row == NULL)
- {
- if (png_ptr->prev_row == NULL)
- {
- png_warning(png_ptr, "Can't add Average filter after starting");
- png_ptr->do_filter = (png_byte)(png_ptr->do_filter &
- ~PNG_FILTER_AVG);
- }
+ /* Repeat the checks in png_write_start_row; 1 pixel high or wide
+ * images cannot benefit from certain filters. If this isn't done here
+ * the check below will fire on 1 pixel high images.
+ */
+ if (png_ptr->height == 1)
+ filters &= ~(PNG_FILTER_UP|PNG_FILTER_AVG|PNG_FILTER_PAETH);
- else
- {
- png_ptr->avg_row = (png_bytep)png_malloc(png_ptr,
- (png_ptr->rowbytes + 1));
- png_ptr->avg_row[0] = PNG_FILTER_VALUE_AVG;
- }
- }
+ if (png_ptr->width == 1)
+ filters &= ~(PNG_FILTER_SUB|PNG_FILTER_AVG|PNG_FILTER_PAETH);
- if ((png_ptr->do_filter & PNG_FILTER_PAETH) &&
- png_ptr->paeth_row == NULL)
+ if ((filters & (PNG_FILTER_UP|PNG_FILTER_AVG|PNG_FILTER_PAETH)) != 0
+ && png_ptr->prev_row == NULL)
{
- if (png_ptr->prev_row == NULL)
- {
- png_warning(png_ptr, "Can't add Paeth filter after starting");
- png_ptr->do_filter &= (png_byte)(~PNG_FILTER_PAETH);
- }
-
- else
- {
- png_ptr->paeth_row = (png_bytep)png_malloc(png_ptr,
- (png_ptr->rowbytes + 1));
- png_ptr->paeth_row[0] = PNG_FILTER_VALUE_PAETH;
- }
+ /* This is the error case, however it is benign - the previous row
+ * is not available so the filter can't be used. Just warn here.
+ */
+ png_app_warning(png_ptr,
+ "png_set_filter: UP/AVG/PAETH cannot be added after start");
+ filters &= ~(PNG_FILTER_UP|PNG_FILTER_AVG|PNG_FILTER_PAETH);
}
- if (png_ptr->do_filter == PNG_NO_FILTERS)
-#endif /* PNG_WRITE_FILTER_SUPPORTED */
- png_ptr->do_filter = PNG_FILTER_NONE;
- }
- }
- else
- png_error(png_ptr, "Unknown custom filter method");
-}
+ num_filters = 0;
-/* This allows us to influence the way in which libpng chooses the "best"
- * filter for the current scanline. While the "minimum-sum-of-absolute-
- * differences metric is relatively fast and effective, there is some
- * question as to whether it can be improved upon by trying to keep the
- * filtered data going to zlib more consistent, hopefully resulting in
- * better compression.
- */
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /* GRR 970116 */
-/* Convenience reset API. */
-static void
-png_reset_filter_heuristics(png_structrp png_ptr)
-{
- /* Clear out any old values in the 'weights' - this must be done because if
- * the app calls set_filter_heuristics multiple times with different
- * 'num_weights' values we would otherwise potentially have wrong sized
- * arrays.
- */
- png_ptr->num_prev_filters = 0;
- png_ptr->heuristic_method = PNG_FILTER_HEURISTIC_UNWEIGHTED;
- if (png_ptr->prev_filters != NULL)
- {
- png_bytep old = png_ptr->prev_filters;
- png_ptr->prev_filters = NULL;
- png_free(png_ptr, old);
- }
- if (png_ptr->filter_weights != NULL)
- {
- png_uint_16p old = png_ptr->filter_weights;
- png_ptr->filter_weights = NULL;
- png_free(png_ptr, old);
- }
+ if (filters & PNG_FILTER_SUB)
+ num_filters++;
- if (png_ptr->inv_filter_weights != NULL)
- {
- png_uint_16p old = png_ptr->inv_filter_weights;
- png_ptr->inv_filter_weights = NULL;
- png_free(png_ptr, old);
- }
+ if (filters & PNG_FILTER_UP)
+ num_filters++;
- /* Leave the filter_costs - this array is fixed size. */
-}
+ if (filters & PNG_FILTER_AVG)
+ num_filters++;
-static int
-png_init_filter_heuristics(png_structrp png_ptr, int heuristic_method,
- int num_weights)
-{
- if (png_ptr == NULL)
- return 0;
+ if (filters & PNG_FILTER_PAETH)
+ num_filters++;
- /* Clear out the arrays */
- png_reset_filter_heuristics(png_ptr);
-
- /* Check arguments; the 'reset' function makes the correct settings for the
- * unweighted case, but we must handle the weight case by initializing the
- * arrays for the caller.
- */
- if (heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
- {
- int i;
-
- if (num_weights > 0)
- {
- png_ptr->prev_filters = (png_bytep)png_malloc(png_ptr,
- (png_uint_32)((sizeof (png_byte)) * num_weights));
-
- /* To make sure that the weighting starts out fairly */
- for (i = 0; i < num_weights; i++)
- {
- png_ptr->prev_filters[i] = 255;
- }
-
- png_ptr->filter_weights = (png_uint_16p)png_malloc(png_ptr,
- (png_uint_32)((sizeof (png_uint_16)) * num_weights));
+ /* Allocate needed row buffers if they have not already been
+ * allocated.
+ */
+ buf_size = PNG_ROWBYTES(png_ptr->usr_channels * png_ptr->usr_bit_depth,
+ png_ptr->width) + 1;
- png_ptr->inv_filter_weights = (png_uint_16p)png_malloc(png_ptr,
- (png_uint_32)((sizeof (png_uint_16)) * num_weights));
+ if (png_ptr->try_row == NULL)
+ png_ptr->try_row = png_voidcast(png_bytep,
+ png_malloc(png_ptr, buf_size));
- for (i = 0; i < num_weights; i++)
+ if (num_filters > 1)
{
- png_ptr->inv_filter_weights[i] =
- png_ptr->filter_weights[i] = PNG_WEIGHT_FACTOR;
+ if (png_ptr->tst_row == NULL)
+ png_ptr->tst_row = png_voidcast(png_bytep,
+ png_malloc(png_ptr, buf_size));
}
-
- /* Safe to set this now */
- png_ptr->num_prev_filters = (png_byte)num_weights;
- }
-
- /* If, in the future, there are other filter methods, this would
- * need to be based on png_ptr->filter.
- */
- if (png_ptr->filter_costs == NULL)
- {
- png_ptr->filter_costs = (png_uint_16p)png_malloc(png_ptr,
- (png_uint_32)((sizeof (png_uint_16)) * PNG_FILTER_VALUE_LAST));
-
- png_ptr->inv_filter_costs = (png_uint_16p)png_malloc(png_ptr,
- (png_uint_32)((sizeof (png_uint_16)) * PNG_FILTER_VALUE_LAST));
- }
-
- for (i = 0; i < PNG_FILTER_VALUE_LAST; i++)
- {
- png_ptr->inv_filter_costs[i] =
- png_ptr->filter_costs[i] = PNG_COST_FACTOR;
}
-
- /* All the arrays are inited, safe to set this: */
- png_ptr->heuristic_method = PNG_FILTER_HEURISTIC_WEIGHTED;
-
- /* Return the 'ok' code. */
- return 1;
- }
- else if (heuristic_method == PNG_FILTER_HEURISTIC_DEFAULT ||
- heuristic_method == PNG_FILTER_HEURISTIC_UNWEIGHTED)
- {
- return 1;
+ png_ptr->do_filter = (png_byte)filters;
+#endif
}
else
- {
- png_warning(png_ptr, "Unknown filter heuristic method");
- return 0;
- }
+ png_error(png_ptr, "Unknown custom filter method");
}
+#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /* DEPRECATED */
/* Provide floating and fixed point APIs */
#ifdef PNG_FLOATING_POINT_SUPPORTED
void PNGAPI
int num_weights, png_const_doublep filter_weights,
png_const_doublep filter_costs)
{
- png_debug(1, "in png_set_filter_heuristics");
-
- /* The internal API allocates all the arrays and ensures that the elements of
- * those arrays are set to the default value.
- */
- if (!png_init_filter_heuristics(png_ptr, heuristic_method, num_weights))
- return;
-
- /* If using the weighted method copy in the weights. */
- if (heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
- {
- int i;
- for (i = 0; i < num_weights; i++)
- {
- if (filter_weights[i] <= 0.0)
- {
- png_ptr->inv_filter_weights[i] =
- png_ptr->filter_weights[i] = PNG_WEIGHT_FACTOR;
- }
-
- else
- {
- png_ptr->inv_filter_weights[i] =
- (png_uint_16)(PNG_WEIGHT_FACTOR*filter_weights[i]+.5);
-
- png_ptr->filter_weights[i] =
- (png_uint_16)(PNG_WEIGHT_FACTOR/filter_weights[i]+.5);
- }
- }
-
- /* Here is where we set the relative costs of the different filters. We
- * should take the desired compression level into account when setting
- * the costs, so that Paeth, for instance, has a high relative cost at low
- * compression levels, while it has a lower relative cost at higher
- * compression settings. The filter types are in order of increasing
- * relative cost, so it would be possible to do this with an algorithm.
- */
- for (i = 0; i < PNG_FILTER_VALUE_LAST; i++) if (filter_costs[i] >= 1.0)
- {
- png_ptr->inv_filter_costs[i] =
- (png_uint_16)(PNG_COST_FACTOR / filter_costs[i] + .5);
-
- png_ptr->filter_costs[i] =
- (png_uint_16)(PNG_COST_FACTOR * filter_costs[i] + .5);
- }
- }
+ PNG_UNUSED(png_ptr)
+ PNG_UNUSED(heuristic_method)
+ PNG_UNUSED(num_weights)
+ PNG_UNUSED(filter_weights)
+ PNG_UNUSED(filter_costs)
}
#endif /* FLOATING_POINT */
int num_weights, png_const_fixed_point_p filter_weights,
png_const_fixed_point_p filter_costs)
{
- png_debug(1, "in png_set_filter_heuristics_fixed");
-
- /* The internal API allocates all the arrays and ensures that the elements of
- * those arrays are set to the default value.
- */
- if (!png_init_filter_heuristics(png_ptr, heuristic_method, num_weights))
- return;
-
- /* If using the weighted method copy in the weights. */
- if (heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
- {
- int i;
- for (i = 0; i < num_weights; i++)
- {
- if (filter_weights[i] <= 0)
- {
- png_ptr->inv_filter_weights[i] =
- png_ptr->filter_weights[i] = PNG_WEIGHT_FACTOR;
- }
-
- else
- {
- png_ptr->inv_filter_weights[i] = (png_uint_16)
- ((PNG_WEIGHT_FACTOR*filter_weights[i]+PNG_FP_HALF)/PNG_FP_1);
-
- png_ptr->filter_weights[i] = (png_uint_16)((PNG_WEIGHT_FACTOR*
- PNG_FP_1+(filter_weights[i]/2))/filter_weights[i]);
- }
- }
-
- /* Here is where we set the relative costs of the different filters. We
- * should take the desired compression level into account when setting
- * the costs, so that Paeth, for instance, has a high relative cost at low
- * compression levels, while it has a lower relative cost at higher
- * compression settings. The filter types are in order of increasing
- * relative cost, so it would be possible to do this with an algorithm.
- */
- for (i = 0; i < PNG_FILTER_VALUE_LAST; i++)
- if (filter_costs[i] >= PNG_FP_1)
- {
- png_uint_32 tmp;
-
- /* Use a 32 bit unsigned temporary here because otherwise the
- * intermediate value will be a 32 bit *signed* integer (ANSI rules)
- * and this will get the wrong answer on division.
- */
- tmp = PNG_COST_FACTOR*PNG_FP_1 + (filter_costs[i]/2);
- tmp /= filter_costs[i];
-
- png_ptr->inv_filter_costs[i] = (png_uint_16)tmp;
-
- tmp = PNG_COST_FACTOR * filter_costs[i] + PNG_FP_HALF;
- tmp /= PNG_FP_1;
-
- png_ptr->filter_costs[i] = (png_uint_16)tmp;
- }
- }
+ PNG_UNUSED(png_ptr)
+ PNG_UNUSED(heuristic_method)
+ PNG_UNUSED(num_weights)
+ PNG_UNUSED(filter_weights)
+ PNG_UNUSED(filter_costs)
}
#endif /* FIXED_POINT */
-#endif /* PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */
+#endif /* WRITE_WEIGHTED_FILTER */
+#ifdef PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
void PNGAPI
png_set_compression_level(png_structrp png_ptr, int level)
{
if (png_ptr == NULL)
return;
- /* Prior to 1.6.0 this would warn but then set the window_bits value, this
- * meant that negative window bits values could be selected which would cause
+ /* Prior to 1.6.0 this would warn but then set the window_bits value. This
+ * meant that negative window bits values could be selected that would cause
* libpng to write a non-standard PNG file with raw deflate or gzip
* compressed IDAT or ancillary chunks. Such files can be read and there is
* no warning on read, so this seems like a very bad idea.
png_ptr->zlib_method = method;
}
+#endif /* WRITE_CUSTOMIZE_COMPRESSION */
/* The following were added to libpng-1.5.4 */
#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
png_ptr->zlib_text_method = method;
}
-#endif /* PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED */
+#endif /* WRITE_CUSTOMIZE_ZTXT_COMPRESSION */
/* end of API added to libpng-1.5.4 */
void PNGAPI
/* ------ these transformations don't touch the info structure ------- */
/* Invert monochrome pixels */
- if (transforms & PNG_TRANSFORM_INVERT_MONO)
+ if ((transforms & PNG_TRANSFORM_INVERT_MONO) != 0)
#ifdef PNG_WRITE_INVERT_SUPPORTED
png_set_invert_mono(png_ptr);
#else
/* Shift the pixels up to a legal bit depth and fill in
* as appropriate to correctly scale the image.
*/
- if (transforms & PNG_TRANSFORM_SHIFT)
+ if ((transforms & PNG_TRANSFORM_SHIFT) != 0)
#ifdef PNG_WRITE_SHIFT_SUPPORTED
- if (info_ptr->valid & PNG_INFO_sBIT)
+ if ((info_ptr->valid & PNG_INFO_sBIT) != 0)
png_set_shift(png_ptr, &info_ptr->sig_bit);
#else
png_app_error(png_ptr, "PNG_TRANSFORM_SHIFT not supported");
#endif
/* Pack pixels into bytes */
- if (transforms & PNG_TRANSFORM_PACKING)
+ if ((transforms & PNG_TRANSFORM_PACKING) != 0)
#ifdef PNG_WRITE_PACK_SUPPORTED
png_set_packing(png_ptr);
#else
#endif
/* Swap location of alpha bytes from ARGB to RGBA */
- if (transforms & PNG_TRANSFORM_SWAP_ALPHA)
+ if ((transforms & PNG_TRANSFORM_SWAP_ALPHA) != 0)
#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED
png_set_swap_alpha(png_ptr);
#else
* RGB, note that the code expects the input color type to be G or RGB; no
* alpha channel.
*/
- if (transforms &
- (PNG_TRANSFORM_STRIP_FILLER_AFTER|PNG_TRANSFORM_STRIP_FILLER_BEFORE))
+ if ((transforms & (PNG_TRANSFORM_STRIP_FILLER_AFTER|
+ PNG_TRANSFORM_STRIP_FILLER_BEFORE)) != 0)
{
#ifdef PNG_WRITE_FILLER_SUPPORTED
- if (transforms & PNG_TRANSFORM_STRIP_FILLER_AFTER)
+ if ((transforms & PNG_TRANSFORM_STRIP_FILLER_AFTER) != 0)
{
- if (transforms & PNG_TRANSFORM_STRIP_FILLER_BEFORE)
+ if ((transforms & PNG_TRANSFORM_STRIP_FILLER_BEFORE) != 0)
png_app_error(png_ptr,
- "PNG_TRANSFORM_STRIP_FILLER: BEFORE+AFTER not supported");
+ "PNG_TRANSFORM_STRIP_FILLER: BEFORE+AFTER not supported");
/* Continue if ignored - this is the pre-1.6.10 behavior */
png_set_filler(png_ptr, 0, PNG_FILLER_AFTER);
}
- else if (transforms & PNG_TRANSFORM_STRIP_FILLER_BEFORE)
+ else if ((transforms & PNG_TRANSFORM_STRIP_FILLER_BEFORE) != 0)
png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE);
#else
png_app_error(png_ptr, "PNG_TRANSFORM_STRIP_FILLER not supported");
}
/* Flip BGR pixels to RGB */
- if (transforms & PNG_TRANSFORM_BGR)
+ if ((transforms & PNG_TRANSFORM_BGR) != 0)
#ifdef PNG_WRITE_BGR_SUPPORTED
png_set_bgr(png_ptr);
#else
#endif
/* Swap bytes of 16-bit files to most significant byte first */
- if (transforms & PNG_TRANSFORM_SWAP_ENDIAN)
+ if ((transforms & PNG_TRANSFORM_SWAP_ENDIAN) != 0)
#ifdef PNG_WRITE_SWAP_SUPPORTED
png_set_swap(png_ptr);
#else
png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ENDIAN not supported");
#endif
- /* Swap bits of 1, 2, 4 bit packed pixel formats */
- if (transforms & PNG_TRANSFORM_PACKSWAP)
+ /* Swap bits of 1-bit, 2-bit, 4-bit packed pixel formats */
+ if ((transforms & PNG_TRANSFORM_PACKSWAP) != 0)
#ifdef PNG_WRITE_PACKSWAP_SUPPORTED
png_set_packswap(png_ptr);
#else
#endif
/* Invert the alpha channel from opacity to transparency */
- if (transforms & PNG_TRANSFORM_INVERT_ALPHA)
+ if ((transforms & PNG_TRANSFORM_INVERT_ALPHA) != 0)
#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED
png_set_invert_alpha(png_ptr);
#else
#ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED
-#ifdef PNG_STDIO_SUPPORTED /* currently required for png_image_write_* */
+# ifdef PNG_STDIO_SUPPORTED /* currently required for png_image_write_* */
/* Initialize the write structure - general purpose utility. */
static int
png_image_write_init(png_imagep image)
{
png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, image,
- png_safe_error, png_safe_warning);
+ png_safe_error, png_safe_warning);
if (png_ptr != NULL)
{
if (info_ptr != NULL)
{
png_controlp control = png_voidcast(png_controlp,
- png_malloc_warn(png_ptr, (sizeof *control)));
+ png_malloc_warn(png_ptr, (sizeof *control)));
if (control != NULL)
{
png_write_image_16bit(png_voidp argument)
{
png_image_write_control *display = png_voidcast(png_image_write_control*,
- argument);
+ argument);
png_imagep image = display->image;
png_structrp png_ptr = image->opaque->png_ptr;
png_const_uint_16p input_row = png_voidcast(png_const_uint_16p,
- display->first_row);
+ display->first_row);
png_uint_16p output_row = png_voidcast(png_uint_16p, display->local_row);
png_uint_16p row_end;
- const int channels = (image->format & PNG_FORMAT_FLAG_COLOR) ? 3 : 1;
+ const int channels = (image->format & PNG_FORMAT_FLAG_COLOR) != 0 ? 3 : 1;
int aindex = 0;
png_uint_32 y = image->height;
- if (image->format & PNG_FORMAT_FLAG_ALPHA)
+ if ((image->format & PNG_FORMAT_FLAG_ALPHA) != 0)
{
-# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
- if (image->format & PNG_FORMAT_FLAG_AFIRST)
- {
- aindex = -1;
- ++input_row; /* To point to the first component */
- ++output_row;
- }
-
+# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
+ if ((image->format & PNG_FORMAT_FLAG_AFIRST) != 0)
+ {
+ aindex = -1;
+ ++input_row; /* To point to the first component */
+ ++output_row;
+ }
else
-# endif
+ aindex = channels;
+# else
aindex = channels;
+# endif
}
else
* calculation can be done to 15 bits of accuracy; however, the output needs to
* be scaled in the range 0..255*65535, so include that scaling here.
*/
-#define UNP_RECIPROCAL(alpha) ((((0xffff*0xff)<<7)+(alpha>>1))/alpha)
+# define UNP_RECIPROCAL(alpha) ((((0xffff*0xff)<<7)+(alpha>>1))/alpha)
static png_byte
png_unpremultiply(png_uint_32 component, png_uint_32 alpha,
png_write_image_8bit(png_voidp argument)
{
png_image_write_control *display = png_voidcast(png_image_write_control*,
- argument);
+ argument);
png_imagep image = display->image;
png_structrp png_ptr = image->opaque->png_ptr;
png_const_uint_16p input_row = png_voidcast(png_const_uint_16p,
- display->first_row);
+ display->first_row);
png_bytep output_row = png_voidcast(png_bytep, display->local_row);
png_uint_32 y = image->height;
- const int channels = (image->format & PNG_FORMAT_FLAG_COLOR) ? 3 : 1;
+ const int channels = (image->format & PNG_FORMAT_FLAG_COLOR) != 0 ? 3 : 1;
- if (image->format & PNG_FORMAT_FLAG_ALPHA)
+ if ((image->format & PNG_FORMAT_FLAG_ALPHA) != 0)
{
png_bytep row_end;
int aindex;
-# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
- if (image->format & PNG_FORMAT_FLAG_AFIRST)
- {
- aindex = -1;
- ++input_row; /* To point to the first component */
- ++output_row;
- }
+# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
+ if ((image->format & PNG_FORMAT_FLAG_AFIRST) != 0)
+ {
+ aindex = -1;
+ ++input_row; /* To point to the first component */
+ ++output_row;
+ }
- else
-# endif
- aindex = channels;
+ else
+# endif
+ aindex = channels;
/* Use row_end in place of a loop counter: */
row_end = output_row + image->width * (channels+1);
} /* while out_ptr < row_end */
png_write_row(png_ptr, png_voidcast(png_const_bytep,
- display->local_row));
+ display->local_row));
input_row += display->row_bytes/(sizeof (png_uint_16));
} /* while y */
}
const png_imagep image = display->image;
const void *cmap = display->colormap;
const int entries = image->colormap_entries > 256 ? 256 :
- (int)image->colormap_entries;
+ (int)image->colormap_entries;
/* NOTE: the caller must check for cmap != NULL and entries != 0 */
const png_uint_32 format = image->format;
const int channels = PNG_IMAGE_SAMPLE_CHANNELS(format);
-# if defined(PNG_FORMAT_BGR_SUPPORTED) &&\
+# if defined(PNG_FORMAT_BGR_SUPPORTED) &&\
defined(PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED)
const int afirst = (format & PNG_FORMAT_FLAG_AFIRST) != 0 &&
- (format & PNG_FORMAT_FLAG_ALPHA) != 0;
-# else
+ (format & PNG_FORMAT_FLAG_ALPHA) != 0;
+# else
# define afirst 0
-# endif
+# endif
-# ifdef PNG_FORMAT_BGR_SUPPORTED
- const int bgr = (format & PNG_FORMAT_FLAG_BGR) ? 2 : 0;
-# else
+# ifdef PNG_FORMAT_BGR_SUPPORTED
+ const int bgr = (format & PNG_FORMAT_FLAG_BGR) != 0 ? 2 : 0;
+# else
# define bgr 0
-# endif
+# endif
int i, num_trans;
png_color palette[256];
/* This gets automatically converted to sRGB with reversal of the
* pre-multiplication if the color-map has an alpha channel.
*/
- if (format & PNG_FORMAT_FLAG_LINEAR)
+ if ((format & PNG_FORMAT_FLAG_LINEAR) != 0)
{
png_const_uint_16p entry = png_voidcast(png_const_uint_16p, cmap);
entry += i * channels;
- if (channels & 1) /* no alpha */
+ if ((channels & 1) != 0) /* no alpha */
{
if (channels >= 3) /* RGB */
{
palette[i].blue = (png_byte)PNG_sRGB_FROM_LINEAR(255 *
- entry[(2 ^ bgr)]);
+ entry[(2 ^ bgr)]);
palette[i].green = (png_byte)PNG_sRGB_FROM_LINEAR(255 *
- entry[1]);
+ entry[1]);
palette[i].red = (png_byte)PNG_sRGB_FROM_LINEAR(255 *
- entry[bgr]);
+ entry[bgr]);
}
else /* Gray */
}
}
-# ifdef afirst
+# ifdef afirst
# undef afirst
-# endif
-# ifdef bgr
+# endif
+# ifdef bgr
# undef bgr
-# endif
+# endif
png_set_PLTE(image->opaque->png_ptr, image->opaque->info_ptr, palette,
entries);
png_inforp info_ptr = image->opaque->info_ptr;
png_uint_32 format = image->format;
- int colormap = (format & PNG_FORMAT_FLAG_COLORMAP) != 0;
- int linear = !colormap && (format & PNG_FORMAT_FLAG_LINEAR) != 0; /* input */
- int alpha = !colormap && (format & PNG_FORMAT_FLAG_ALPHA) != 0;
- int write_16bit = linear && !colormap && !display->convert_to_8bit;
+ /* The following four ints are actually booleans */
+ int colormap = (format & PNG_FORMAT_FLAG_COLORMAP);
+ int linear = !colormap && (format & PNG_FORMAT_FLAG_LINEAR); /* input */
+ int alpha = !colormap && (format & PNG_FORMAT_FLAG_ALPHA);
+ int write_16bit = linear && !colormap && (display->convert_to_8bit == 0);
-# ifdef PNG_BENIGN_ERRORS_SUPPORTED
+# ifdef PNG_BENIGN_ERRORS_SUPPORTED
/* Make sure we error out on any bad situation */
png_set_benign_errors(png_ptr, 0/*error*/);
-# endif
+# endif
/* Default the 'row_stride' parameter if required. */
if (display->row_stride == 0)
display->row_stride = PNG_IMAGE_ROW_STRIDE(*image);
/* Set the required transforms then write the rows in the correct order. */
- if (format & PNG_FORMAT_FLAG_COLORMAP)
+ if ((format & PNG_FORMAT_FLAG_COLORMAP) != 0)
{
if (display->colormap != NULL && image->colormap_entries > 0)
{
/* The gamma here is 1.0 (linear) and the cHRM chunk matches sRGB. */
png_set_gAMA_fixed(png_ptr, info_ptr, PNG_GAMMA_LINEAR);
- if (!(image->flags & PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB))
+ if ((image->flags & PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB) == 0)
png_set_cHRM_fixed(png_ptr, info_ptr,
/* color x y */
/* white */ 31270, 32900,
);
}
- else if (!(image->flags & PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB))
+ else if ((image->flags & PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB) == 0)
png_set_sRGB(png_ptr, info_ptr, PNG_sRGB_INTENT_PERCEPTUAL);
/* Else writing an 8-bit file and the *colors* aren't sRGB, but the 8-bit
/* Now set up the data transformations (*after* the header is written),
* remove the handled transformations from the 'format' flags for checking.
*
- * First check for a little endian system if writing 16 bit files.
+ * First check for a little endian system if writing 16-bit files.
*/
if (write_16bit != 0)
{
PNG_CONST png_uint_16 le = 0x0001;
- if (*(png_const_bytep)&le)
+ if ((*(png_const_bytep) & le) != 0)
png_set_swap(png_ptr);
}
-# ifdef PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED
- if (format & PNG_FORMAT_FLAG_BGR)
+# ifdef PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED
+ if ((format & PNG_FORMAT_FLAG_BGR) != 0)
{
- if (!colormap && (format & PNG_FORMAT_FLAG_COLOR) != 0)
+ if (colormap == 0 && (format & PNG_FORMAT_FLAG_COLOR) != 0)
png_set_bgr(png_ptr);
format &= ~PNG_FORMAT_FLAG_BGR;
}
-# endif
+# endif
-# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
- if (format & PNG_FORMAT_FLAG_AFIRST)
+# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
+ if ((format & PNG_FORMAT_FLAG_AFIRST) != 0)
{
- if (!colormap && (format & PNG_FORMAT_FLAG_ALPHA) != 0)
+ if (colormap == 0 && (format & PNG_FORMAT_FLAG_ALPHA) != 0)
png_set_swap_alpha(png_ptr);
format &= ~PNG_FORMAT_FLAG_AFIRST;
}
-# endif
+# endif
/* If there are 16 or fewer color-map entries we wrote a lower bit depth
* above, but the application data is still byte packed.
*/
- if (colormap && image->colormap_entries <= 16)
+ if (colormap != 0 && image->colormap_entries <= 16)
png_set_packing(png_ptr);
/* That should have handled all (both) the transforms. */
* it about 50 times. The speed-up in pngstest was about 10-20% of the
* total (user) time on a heavily loaded system.
*/
+# ifdef PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
png_set_compression_level(png_ptr, 3);
+# endif
}
/* Check for the cases that currently require a pre-transform on the row
* before it is written. This only applies when the input is 16-bit and
* either there is an alpha channel or it is converted to 8-bit.
*/
- if ((linear && alpha) || (!colormap && display->convert_to_8bit))
+ if ((linear != 0 && alpha != 0 ) ||
+ (colormap == 0 && display->convert_to_8bit != 0))
{
png_bytep row = png_voidcast(png_bytep, png_malloc(png_ptr,
png_get_rowbytes(png_ptr, info_ptr)));
{
if (file != NULL)
{
- if (png_image_write_init(image))
+ if (png_image_write_init(image) != 0)
{
png_image_write_control display;
int result;
if (fp != NULL)
{
if (png_image_write_to_stdio(image, fp, convert_to_8bit, buffer,
- row_stride, colormap))
+ row_stride, colormap) != 0)
{
int error; /* from fflush/fclose */
else
return 0;
}
-#endif /* PNG_STDIO_SUPPORTED */
+# endif /* STDIO */
#endif /* SIMPLIFIED_WRITE */
-#endif /* PNG_WRITE_SUPPORTED */
+#endif /* WRITE */
/* pngwtran.c - transforms the data in a row for PNG writers
*
- * Last changed in libpng 1.6.9 [February 6, 2014]
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.18 [July 23, 2015]
+ * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
case 2:
{
png_bytep sp, dp;
- int shift, v;
+ unsigned int shift;
+ int v;
png_uint_32 i;
png_uint_32 row_width = row_info->width;
case 4:
{
png_bytep sp, dp;
- int shift, v;
+ unsigned int shift;
+ int v;
png_uint_32 i;
png_uint_32 row_width = row_info->width;
int shift_start[4], shift_dec[4];
int channels = 0;
- if (row_info->color_type & PNG_COLOR_MASK_COLOR)
+ if ((row_info->color_type & PNG_COLOR_MASK_COLOR) != 0)
{
shift_start[channels] = row_info->bit_depth - bit_depth->red;
shift_dec[channels] = bit_depth->red;
channels++;
}
- if (row_info->color_type & PNG_COLOR_MASK_ALPHA)
+ if ((row_info->color_type & PNG_COLOR_MASK_ALPHA) != 0)
{
shift_start[channels] = row_info->bit_depth - bit_depth->alpha;
shift_dec[channels] = bit_depth->alpha;
*(dp++) = save[1];
}
}
-#endif /* PNG_WRITE_16BIT_SUPPORTED */
+#endif /* WRITE_16BIT */
}
else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
*(dp++) = save[1];
}
}
-#endif /* PNG_WRITE_16BIT_SUPPORTED */
+#endif /* WRITE_16BIT */
}
}
}
*(dp++) = *(sp++);
*/
sp+=3; dp = sp;
- *(dp++) = (png_byte)(255 - *(sp++));
+ *dp = (png_byte)(255 - *(sp++));
}
}
*/
sp+=6; dp = sp;
*(dp++) = (png_byte)(255 - *(sp++));
- *(dp++) = (png_byte)(255 - *(sp++));
+ *dp = (png_byte)(255 - *(sp++));
}
}
-#endif /* PNG_WRITE_16BIT_SUPPORTED */
+#endif /* WRITE_16BIT */
}
else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
*/
sp+=2; dp = sp;
*(dp++) = (png_byte)(255 - *(sp++));
- *(dp++) = (png_byte)(255 - *(sp++));
+ *dp = (png_byte)(255 - *(sp++));
}
}
-#endif /* PNG_WRITE_16BIT_SUPPORTED */
+#endif /* WRITE_16BIT */
}
}
}
return;
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
- if (png_ptr->transformations & PNG_USER_TRANSFORM)
+ if ((png_ptr->transformations & PNG_USER_TRANSFORM) != 0)
if (png_ptr->write_user_transform_fn != NULL)
(*(png_ptr->write_user_transform_fn)) /* User write transform
function */
#endif
#ifdef PNG_WRITE_FILLER_SUPPORTED
- if (png_ptr->transformations & PNG_FILLER)
+ if ((png_ptr->transformations & PNG_FILLER) != 0)
png_do_strip_channel(row_info, png_ptr->row_buf + 1,
!(png_ptr->flags & PNG_FLAG_FILLER_AFTER));
#endif
#ifdef PNG_WRITE_PACKSWAP_SUPPORTED
- if (png_ptr->transformations & PNG_PACKSWAP)
+ if ((png_ptr->transformations & PNG_PACKSWAP) != 0)
png_do_packswap(row_info, png_ptr->row_buf + 1);
#endif
#ifdef PNG_WRITE_PACK_SUPPORTED
- if (png_ptr->transformations & PNG_PACK)
+ if ((png_ptr->transformations & PNG_PACK) != 0)
png_do_pack(row_info, png_ptr->row_buf + 1,
(png_uint_32)png_ptr->bit_depth);
#endif
#ifdef PNG_WRITE_SWAP_SUPPORTED
- if (png_ptr->transformations & PNG_SWAP_BYTES)
+# ifdef PNG_16BIT_SUPPORTED
+ if ((png_ptr->transformations & PNG_SWAP_BYTES) != 0)
png_do_swap(row_info, png_ptr->row_buf + 1);
+# endif
#endif
#ifdef PNG_WRITE_SHIFT_SUPPORTED
- if (png_ptr->transformations & PNG_SHIFT)
+ if ((png_ptr->transformations & PNG_SHIFT) != 0)
png_do_shift(row_info, png_ptr->row_buf + 1,
&(png_ptr->shift));
#endif
#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED
- if (png_ptr->transformations & PNG_SWAP_ALPHA)
+ if ((png_ptr->transformations & PNG_SWAP_ALPHA) != 0)
png_do_write_swap_alpha(row_info, png_ptr->row_buf + 1);
#endif
#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED
- if (png_ptr->transformations & PNG_INVERT_ALPHA)
+ if ((png_ptr->transformations & PNG_INVERT_ALPHA) != 0)
png_do_write_invert_alpha(row_info, png_ptr->row_buf + 1);
#endif
#ifdef PNG_WRITE_BGR_SUPPORTED
- if (png_ptr->transformations & PNG_BGR)
+ if ((png_ptr->transformations & PNG_BGR) != 0)
png_do_bgr(row_info, png_ptr->row_buf + 1);
#endif
#ifdef PNG_WRITE_INVERT_SUPPORTED
- if (png_ptr->transformations & PNG_INVERT_MONO)
+ if ((png_ptr->transformations & PNG_INVERT_MONO) != 0)
png_do_invert(row_info, png_ptr->row_buf + 1);
#endif
}
-#endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */
-#endif /* PNG_WRITE_SUPPORTED */
+#endif /* WRITE_TRANSFORMS */
+#endif /* WRITE */
/* pngwutil.c - utilities to write a PNG file
*
- * Last changed in libpng 1.6.11 [June 5, 2014]
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.21 [January 15, 2016]
+ * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
void PNGAPI
png_save_uint_32(png_bytep buf, png_uint_32 i)
{
- buf[0] = (png_byte)((i >> 24) & 0xff);
- buf[1] = (png_byte)((i >> 16) & 0xff);
- buf[2] = (png_byte)((i >> 8) & 0xff);
- buf[3] = (png_byte)(i & 0xff);
+ buf[0] = (png_byte)(i >> 24);
+ buf[1] = (png_byte)(i >> 16);
+ buf[2] = (png_byte)(i >> 8);
+ buf[3] = (png_byte)(i );
}
/* Place a 16-bit number into a buffer in PNG byte order.
void PNGAPI
png_save_uint_16(png_bytep buf, unsigned int i)
{
- buf[0] = (png_byte)((i >> 8) & 0xff);
- buf[1] = (png_byte)(i & 0xff);
+ buf[0] = (png_byte)(i >> 8);
+ buf[1] = (png_byte)(i );
}
#endif
png_write_data(png_ptr, data, length);
/* Update the CRC after writing the data,
- * in case that the user I/O routine alters it.
+ * in case the user I/O routine alters it.
*/
png_calculate_crc(png_ptr, data, length);
}
if (png_ptr == NULL)
return;
- /* On 64 bit architectures 'length' may not fit in a png_uint_32. */
+ /* On 64-bit architectures 'length' may not fit in a png_uint_32. */
if (length > PNG_UINT_31_MAX)
- png_error(png_ptr, "length exceeds PNG maxima");
+ png_error(png_ptr, "length exceeds PNG maximum");
png_write_chunk_header(png_ptr, chunk_name, (png_uint_32)length);
png_write_chunk_data(png_ptr, data, length);
static png_alloc_size_t
png_image_size(png_structrp png_ptr)
{
- /* Only return sizes up to the maximum of a png_uint_32, do this by limiting
+ /* Only return sizes up to the maximum of a png_uint_32; do this by limiting
* the width and height used to 15 bits.
*/
png_uint_32 h = png_ptr->height;
if (png_ptr->rowbytes < 32768 && h < 32768)
{
- if (png_ptr->interlaced)
+ if (png_ptr->interlaced != 0)
{
/* Interlacing makes the image larger because of the replication of
* both the filter byte and the padding to a byte boundary.
}
}
}
-#else
-# define optimize_cmf(dp,dl) ((void)0)
-#endif /* PNG_WRITE_OPTIMIZE_CMF_SUPPORTED */
+#endif /* WRITE_OPTIMIZE_CMF */
/* Initialize the compressor for the appropriate type of compression. */
static int
{
if (png_ptr->zowner != 0)
{
+#if defined(PNG_WARNINGS_SUPPORTED) || defined(PNG_ERROR_TEXT_SUPPORTED)
char msg[64];
PNG_STRING_FROM_CHUNK(msg, owner);
* are minimal.
*/
(void)png_safecat(msg, (sizeof msg), 10, " using zstream");
-# if PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC
+#endif
+#if PNG_RELEASE_BUILD
png_warning(png_ptr, msg);
/* Attempt sane error recovery */
}
png_ptr->zowner = 0;
-# else
+#else
png_error(png_ptr, msg);
-# endif
+#endif
}
{
if (owner == png_IDAT)
{
- if (png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_STRATEGY)
+ if ((png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_STRATEGY) != 0)
strategy = png_ptr->zlib_strategy;
else if (png_ptr->do_filter != PNG_FILTER_NONE)
else
{
-# ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
+#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
level = png_ptr->zlib_text_level;
method = png_ptr->zlib_text_method;
windowBits = png_ptr->zlib_text_window_bits;
memLevel = png_ptr->zlib_text_mem_level;
strategy = png_ptr->zlib_text_strategy;
-# else
+#else
/* If customization is not supported the values all come from the
* IDAT values except for the strategy, which is fixed to the
* default. (This is the pre-1.6.0 behavior too, although it was
* implemented in a very different way.)
*/
strategy = Z_DEFAULT_STRATEGY;
-# endif
+#endif
}
/* Adjust 'windowBits' down if larger than 'data_size'; to stop this
}
/* Check against the previous initialized values, if any. */
- if ((png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) &&
+ if ((png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) != 0 &&
(png_ptr->zlib_set_level != level ||
png_ptr->zlib_set_method != method ||
png_ptr->zlib_set_window_bits != windowBits ||
/* Now initialize if required, setting the new parameters, otherwise just
* to a simple reset to the previous parameters.
*/
- if (png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED)
+ if ((png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) != 0)
ret = deflateReset(&png_ptr->zstream);
else
int ret;
/* To find the length of the output it is necessary to first compress the
- * input, the result is buffered rather than using the two-pass algorithm
+ * input. The result is buffered rather than using the two-pass algorithm
* that is used on the inflate side; deflate is assumed to be slower and a
* PNG writer is assumed to have more memory available than a PNG reader.
*
}
while (ret == Z_OK);
- /* There may be some space left in the last output buffer, this needs to
+ /* There may be some space left in the last output buffer. This needs to
* be subtracted from output_len.
*/
output_len -= png_ptr->zstream.avail_out;
/* Reset zlib for another zTXt/iTXt or image data */
png_ptr->zowner = 0;
- /* The only success case is Z_STREAM_END, input_len must be 0, if not this
+ /* The only success case is Z_STREAM_END, input_len must be 0; if not this
* is an internal error.
*/
if (ret == Z_STREAM_END && input_len == 0)
{
+#ifdef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
/* Fix up the deflate header, if required */
optimize_cmf(comp->output, comp->input_len);
-
+#endif
/* But Z_OK is returned, not Z_STREAM_END; this allows the claim
* function above to return Z_STREAM_END on an error (though it never
* does in the current versions of zlib.)
if (output_len > 0)
png_error(png_ptr, "error writing ancillary chunked compressed data");
}
-#endif /* PNG_WRITE_COMPRESSED_TEXT_SUPPORTED */
-
-#if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_pCAL_SUPPORTED) || \
- defined(PNG_WRITE_iCCP_SUPPORTED) || defined(PNG_WRITE_sPLT_SUPPORTED)
-/* Check that the tEXt or zTXt keyword is valid per PNG 1.0 specification,
- * and if invalid, correct the keyword rather than discarding the entire
- * chunk. The PNG 1.0 specification requires keywords 1-79 characters in
- * length, forbids leading or trailing whitespace, multiple internal spaces,
- * and the non-break space (0x80) from ISO 8859-1. Returns keyword length.
- *
- * The 'new_key' buffer must be 80 characters in size (for the keyword plus a
- * trailing '\0'). If this routine returns 0 then there was no keyword, or a
- * valid one could not be generated, and the caller must png_error.
- */
-static png_uint_32
-png_check_keyword(png_structrp png_ptr, png_const_charp key, png_bytep new_key)
-{
- png_const_charp orig_key = key;
- png_uint_32 key_len = 0;
- int bad_character = 0;
- int space = 1;
-
- png_debug(1, "in png_check_keyword");
-
- if (key == NULL)
- {
- *new_key = 0;
- return 0;
- }
-
- while (*key && key_len < 79)
- {
- png_byte ch = (png_byte)(0xff & *key++);
-
- if ((ch > 32 && ch <= 126) || (ch >= 161 /*&& ch <= 255*/))
- *new_key++ = ch, ++key_len, space = 0;
-
- else if (space == 0)
- {
- /* A space or an invalid character when one wasn't seen immediately
- * before; output just a space.
- */
- *new_key++ = 32, ++key_len, space = 1;
-
- /* If the character was not a space then it is invalid. */
- if (ch != 32)
- bad_character = ch;
- }
-
- else if (bad_character == 0)
- bad_character = ch; /* just skip it, record the first error */
- }
-
- if (key_len > 0 && space) /* trailing space */
- {
- --key_len, --new_key;
- if (bad_character == 0)
- bad_character = 32;
- }
-
- /* Terminate the keyword */
- *new_key = 0;
-
- if (key_len == 0)
- return 0;
-
- /* Try to only output one warning per keyword: */
- if (*key) /* keyword too long */
- png_warning(png_ptr, "keyword truncated");
-
- else if (bad_character != 0)
- {
- PNG_WARNING_PARAMETERS(p)
-
- png_warning_parameter(p, 1, orig_key);
- png_warning_parameter_signed(p, 2, PNG_NUMBER_FORMAT_02x, bad_character);
-
- png_formatted_warning(png_ptr, p, "keyword \"@1\": bad character '0x@2'");
- }
-
- return key_len;
-}
-#endif
+#endif /* WRITE_COMPRESSED_TEXT */
/* Write the IHDR chunk, and update the png_struct with the necessary
* information. Note that the rest of this code depends upon this
*/
if (
#ifdef PNG_MNG_FEATURES_SUPPORTED
- !((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) &&
- ((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) == 0) &&
+ !((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) != 0 &&
+ ((png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) == 0) &&
(color_type == PNG_COLOR_TYPE_RGB ||
color_type == PNG_COLOR_TYPE_RGB_ALPHA) &&
(filter_type == PNG_INTRAPIXEL_DIFFERENCING)) &&
interlace_type=PNG_INTERLACE_NONE;
#endif
- /* Save the relevent information */
+ /* Save the relevant information */
png_ptr->bit_depth = (png_byte)bit_depth;
png_ptr->color_type = (png_byte)color_type;
png_ptr->interlaced = (png_byte)interlace_type;
png_write_PLTE(png_structrp png_ptr, png_const_colorp palette,
png_uint_32 num_pal)
{
- png_uint_32 i;
+ png_uint_32 max_palette_length, i;
png_const_colorp pal_ptr;
png_byte buf[3];
png_debug(1, "in png_write_PLTE");
+ max_palette_length = (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) ?
+ (1 << png_ptr->bit_depth) : PNG_MAX_PALETTE_LENGTH;
+
if ((
#ifdef PNG_MNG_FEATURES_SUPPORTED
- !(png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE) &&
+ (png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE) == 0 &&
#endif
- num_pal == 0) || num_pal > 256)
+ num_pal == 0) || num_pal > max_palette_length)
{
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
{
}
}
- if (!(png_ptr->color_type&PNG_COLOR_MASK_COLOR))
+ if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) == 0)
{
png_warning(png_ptr,
"Ignoring request to write a PLTE chunk in grayscale PNG");
* Z_FINISH: this is the end of the input, do a Z_FINISH and clean up
*
* The routine manages the acquire and release of the png_ptr->zstream by
- * checking and (at the end) clearing png_ptr->zowner, it does some sanity
+ * checking and (at the end) clearing png_ptr->zowner; it does some sanity
* checks on the 'mode' flags while doing this.
*/
void /* PRIVATE */
input_len += png_ptr->zstream.avail_in;
png_ptr->zstream.avail_in = 0;
- /* OUTPUT: write complete IDAT chunks when avail_out drops to zero, note
+ /* OUTPUT: write complete IDAT chunks when avail_out drops to zero. Note
* that these two zstream fields are preserved across the calls, therefore
* there is no need to set these up on entry to the loop.
*/
/* Write an IDAT containing the data then reset the buffer. The
* first IDAT may need deflate header optimization.
*/
-# ifdef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
- if (!(png_ptr->mode & PNG_HAVE_IDAT) &&
- png_ptr->compression_type == PNG_COMPRESSION_TYPE_BASE)
+#ifdef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
+ if ((png_ptr->mode & PNG_HAVE_IDAT) == 0 &&
+ png_ptr->compression_type == PNG_COMPRESSION_TYPE_BASE)
optimize_cmf(data, png_image_size(png_ptr));
-# endif
+#endif
png_write_complete_chunk(png_ptr, png_IDAT, data, size);
png_ptr->mode |= PNG_HAVE_IDAT;
continue;
}
- /* The order of these checks doesn't matter much; it just effect which
+ /* The order of these checks doesn't matter much; it just affects which
* possible error might be detected if multiple things go wrong at once.
*/
if (ret == Z_OK) /* most likely return code! */
png_bytep data = png_ptr->zbuffer_list->output;
uInt size = png_ptr->zbuffer_size - png_ptr->zstream.avail_out;
-# ifdef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
- if (!(png_ptr->mode & PNG_HAVE_IDAT) &&
- png_ptr->compression_type == PNG_COMPRESSION_TYPE_BASE)
- optimize_cmf(data, png_image_size(png_ptr));
-# endif
+#ifdef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED
+ if ((png_ptr->mode & PNG_HAVE_IDAT) == 0 &&
+ png_ptr->compression_type == PNG_COMPRESSION_TYPE_BASE)
+ optimize_cmf(data, png_image_size(png_ptr));
+#endif
png_write_complete_chunk(png_ptr, png_IDAT, data, size);
png_ptr->zstream.avail_out = 0;
png_debug(1, "in png_write_sBIT");
/* Make sure we don't depend upon the order of PNG_COLOR_8 */
- if (color_type & PNG_COLOR_MASK_COLOR)
+ if ((color_type & PNG_COLOR_MASK_COLOR) != 0)
{
png_byte maxbits;
size = 1;
}
- if (color_type & PNG_COLOR_MASK_ALPHA)
+ if ((color_type & PNG_COLOR_MASK_ALPHA) != 0)
{
if (sbit->alpha == 0 || sbit->alpha > png_ptr->usr_bit_depth)
{
else if (color_type == PNG_COLOR_TYPE_GRAY)
{
- /* One 16 bit value */
+ /* One 16-bit value */
if (tran->gray >= (1 << png_ptr->bit_depth))
{
png_app_warning(png_ptr,
else if (color_type == PNG_COLOR_TYPE_RGB)
{
- /* Three 16 bit values */
+ /* Three 16-bit values */
png_save_uint_16(buf, tran->red);
png_save_uint_16(buf + 2, tran->green);
png_save_uint_16(buf + 4, tran->blue);
#ifdef PNG_WRITE_16BIT_SUPPORTED
- if (png_ptr->bit_depth == 8 && (buf[0] | buf[2] | buf[4]))
+ if (png_ptr->bit_depth == 8 && (buf[0] | buf[2] | buf[4]) != 0)
#else
- if (buf[0] | buf[2] | buf[4])
+ if ((buf[0] | buf[2] | buf[4]) != 0)
#endif
{
png_app_warning(png_ptr,
{
if (
#ifdef PNG_MNG_FEATURES_SUPPORTED
- (png_ptr->num_palette ||
- (!(png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE))) &&
+ (png_ptr->num_palette != 0 ||
+ (png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE) == 0) &&
#endif
back->index >= png_ptr->num_palette)
{
png_write_complete_chunk(png_ptr, png_bKGD, buf, (png_size_t)1);
}
- else if (color_type & PNG_COLOR_MASK_COLOR)
+ else if ((color_type & PNG_COLOR_MASK_COLOR) != 0)
{
png_save_uint_16(buf, back->red);
png_save_uint_16(buf + 2, back->green);
png_save_uint_16(buf + 4, back->blue);
#ifdef PNG_WRITE_16BIT_SUPPORTED
- if (png_ptr->bit_depth == 8 && (buf[0] | buf[2] | buf[4]))
+ if (png_ptr->bit_depth == 8 && (buf[0] | buf[2] | buf[4]) != 0)
#else
- if (buf[0] | buf[2] | buf[4])
+ if ((buf[0] | buf[2] | buf[4]) != 0)
#endif
{
png_warning(png_ptr,
/* Write a compressed text chunk */
void /* PRIVATE */
png_write_zTXt(png_structrp png_ptr, png_const_charp key, png_const_charp text,
- png_size_t text_len, int compression)
+ int compression)
{
png_uint_32 key_len;
png_byte new_key[81];
compression_state comp;
png_debug(1, "in png_write_zTXt");
- PNG_UNUSED(text_len) /* Always use strlen */
if (compression == PNG_TEXT_COMPRESSION_NONE)
{
png_write_compressed_data_out(png_ptr, &comp);
else
- png_write_chunk_data(png_ptr, (png_const_bytep)text, comp.input_len);
+ png_write_chunk_data(png_ptr, (png_const_bytep)text, comp.output_len);
png_write_chunk_end(png_ptr);
}
png_alloc_size_t buf_size;
int usr_pixel_depth;
+#ifdef PNG_WRITE_FILTER_SUPPORTED
+ png_byte filters;
+#endif
+
png_debug(1, "in png_write_start_row");
usr_pixel_depth = png_ptr->usr_channels * png_ptr->usr_bit_depth;
png_ptr->maximum_pixel_depth = (png_byte)usr_pixel_depth;
/* Set up row buffer */
- png_ptr->row_buf = (png_bytep)png_malloc(png_ptr, buf_size);
+ png_ptr->row_buf = png_voidcast(png_bytep, png_malloc(png_ptr, buf_size));
png_ptr->row_buf[0] = PNG_FILTER_VALUE_NONE;
#ifdef PNG_WRITE_FILTER_SUPPORTED
- /* Set up filtering buffer, if using this filter */
- if (png_ptr->do_filter & PNG_FILTER_SUB)
- {
- png_ptr->sub_row = (png_bytep)png_malloc(png_ptr, png_ptr->rowbytes + 1);
+ filters = png_ptr->do_filter;
- png_ptr->sub_row[0] = PNG_FILTER_VALUE_SUB;
- }
+ if (png_ptr->height == 1)
+ filters &= 0xff & ~(PNG_FILTER_UP|PNG_FILTER_AVG|PNG_FILTER_PAETH);
+
+ if (png_ptr->width == 1)
+ filters &= 0xff & ~(PNG_FILTER_SUB|PNG_FILTER_AVG|PNG_FILTER_PAETH);
- /* We only need to keep the previous row if we are using one of these. */
- if (png_ptr->do_filter & (PNG_FILTER_AVG | PNG_FILTER_UP | PNG_FILTER_PAETH))
+ if (filters == 0)
+ filters = PNG_FILTER_NONE;
+
+ png_ptr->do_filter = filters;
+
+ if (((filters & (PNG_FILTER_SUB | PNG_FILTER_UP | PNG_FILTER_AVG |
+ PNG_FILTER_PAETH)) != 0) && png_ptr->try_row == NULL)
{
- /* Set up previous row buffer */
- png_ptr->prev_row = (png_bytep)png_calloc(png_ptr, buf_size);
+ int num_filters = 0;
- if (png_ptr->do_filter & PNG_FILTER_UP)
- {
- png_ptr->up_row = (png_bytep)png_malloc(png_ptr,
- png_ptr->rowbytes + 1);
+ png_ptr->try_row = png_voidcast(png_bytep, png_malloc(png_ptr, buf_size));
- png_ptr->up_row[0] = PNG_FILTER_VALUE_UP;
- }
+ if (filters & PNG_FILTER_SUB)
+ num_filters++;
- if (png_ptr->do_filter & PNG_FILTER_AVG)
- {
- png_ptr->avg_row = (png_bytep)png_malloc(png_ptr,
- png_ptr->rowbytes + 1);
+ if (filters & PNG_FILTER_UP)
+ num_filters++;
- png_ptr->avg_row[0] = PNG_FILTER_VALUE_AVG;
- }
+ if (filters & PNG_FILTER_AVG)
+ num_filters++;
- if (png_ptr->do_filter & PNG_FILTER_PAETH)
- {
- png_ptr->paeth_row = (png_bytep)png_malloc(png_ptr,
- png_ptr->rowbytes + 1);
+ if (filters & PNG_FILTER_PAETH)
+ num_filters++;
- png_ptr->paeth_row[0] = PNG_FILTER_VALUE_PAETH;
- }
+ if (num_filters > 1)
+ png_ptr->tst_row = png_voidcast(png_bytep, png_malloc(png_ptr,
+ buf_size));
}
-#endif /* PNG_WRITE_FILTER_SUPPORTED */
+
+ /* We only need to keep the previous row if we are using one of the following
+ * filters.
+ */
+ if ((filters & (PNG_FILTER_AVG | PNG_FILTER_UP | PNG_FILTER_PAETH)) != 0)
+ png_ptr->prev_row = png_voidcast(png_bytep,
+ png_calloc(png_ptr, buf_size));
+#endif /* WRITE_FILTER */
#ifdef PNG_WRITE_INTERLACING_SUPPORTED
/* If interlaced, we need to set up width and height of pass */
- if (png_ptr->interlaced)
+ if (png_ptr->interlaced != 0)
{
- if (!(png_ptr->transformations & PNG_INTERLACE))
+ if ((png_ptr->transformations & PNG_INTERLACE) == 0)
{
png_ptr->num_rows = (png_ptr->height + png_pass_yinc[0] - 1 -
png_pass_ystart[0]) / png_pass_yinc[0];
#ifdef PNG_WRITE_INTERLACING_SUPPORTED
/* If interlaced, go to next pass */
- if (png_ptr->interlaced)
+ if (png_ptr->interlaced != 0)
{
png_ptr->row_number = 0;
- if (png_ptr->transformations & PNG_INTERLACE)
+ if ((png_ptr->transformations & PNG_INTERLACE) != 0)
{
png_ptr->pass++;
}
png_pass_ystart[png_ptr->pass]) /
png_pass_yinc[png_ptr->pass];
- if (png_ptr->transformations & PNG_INTERLACE)
+ if ((png_ptr->transformations & PNG_INTERLACE) != 0)
break;
} while (png_ptr->usr_width == 0 || png_ptr->num_rows == 0);
{
png_bytep sp;
png_bytep dp;
- int shift;
+ unsigned int shift;
int d;
int value;
png_uint_32 i;
{
png_bytep sp;
png_bytep dp;
- int shift;
+ unsigned int shift;
int d;
int value;
png_uint_32 i;
{
png_bytep sp;
png_bytep dp;
- int shift;
+ unsigned int shift;
int d;
int value;
png_uint_32 i;
}
#endif
+
/* This filters the row, chooses which filter to use, if it has not already
* been specified by the application, and then writes the row out with the
* chosen filter.
*/
-static void
+static void /* PRIVATE */
png_write_filtered_row(png_structrp png_ptr, png_bytep filtered_row,
png_size_t row_bytes);
-#define PNG_MAXSUM (((png_uint_32)(-1)) >> 1)
-#define PNG_HISHIFT 10
-#define PNG_LOMASK ((png_uint_32)0xffffL)
-#define PNG_HIMASK ((png_uint_32)(~PNG_LOMASK >> PNG_HISHIFT))
+#ifdef PNG_WRITE_FILTER_SUPPORTED
+static png_size_t /* PRIVATE */
+png_setup_sub_row(png_structrp png_ptr, const png_uint_32 bpp,
+ const png_size_t row_bytes, const png_size_t lmins)
+{
+ png_bytep rp, dp, lp;
+ png_size_t i;
+ png_size_t sum = 0;
+ int v;
+
+ png_ptr->try_row[0] = PNG_FILTER_VALUE_SUB;
+
+ for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1; i < bpp;
+ i++, rp++, dp++)
+ {
+ v = *dp = *rp;
+ sum += (v < 128) ? v : 256 - v;
+ }
+
+ for (lp = png_ptr->row_buf + 1; i < row_bytes;
+ i++, rp++, lp++, dp++)
+ {
+ v = *dp = (png_byte)(((int)*rp - (int)*lp) & 0xff);
+ sum += (v < 128) ? v : 256 - v;
+
+ if (sum > lmins) /* We are already worse, don't continue. */
+ break;
+ }
+
+ return (sum);
+}
+
+static png_size_t /* PRIVATE */
+png_setup_up_row(png_structrp png_ptr, const png_size_t row_bytes,
+ const png_size_t lmins)
+{
+ png_bytep rp, dp, pp;
+ png_size_t i;
+ png_size_t sum = 0;
+ int v;
+
+ png_ptr->try_row[0] = PNG_FILTER_VALUE_UP;
+
+ for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1,
+ pp = png_ptr->prev_row + 1; i < row_bytes;
+ i++, rp++, pp++, dp++)
+ {
+ v = *dp = (png_byte)(((int)*rp - (int)*pp) & 0xff);
+ sum += (v < 128) ? v : 256 - v;
+
+ if (sum > lmins) /* We are already worse, don't continue. */
+ break;
+ }
+
+ return (sum);
+}
+
+static png_size_t /* PRIVATE */
+png_setup_avg_row(png_structrp png_ptr, const png_uint_32 bpp,
+ const png_size_t row_bytes, const png_size_t lmins)
+{
+ png_bytep rp, dp, pp, lp;
+ png_uint_32 i;
+ png_size_t sum = 0;
+ int v;
+
+ png_ptr->try_row[0] = PNG_FILTER_VALUE_AVG;
+
+ for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1,
+ pp = png_ptr->prev_row + 1; i < bpp; i++)
+ {
+ v = *dp++ = (png_byte)(((int)*rp++ - ((int)*pp++ / 2)) & 0xff);
+
+ sum += (v < 128) ? v : 256 - v;
+ }
+
+ for (lp = png_ptr->row_buf + 1; i < row_bytes; i++)
+ {
+ v = *dp++ = (png_byte)(((int)*rp++ - (((int)*pp++ + (int)*lp++) / 2))
+ & 0xff);
+
+ sum += (v < 128) ? v : 256 - v;
+
+ if (sum > lmins) /* We are already worse, don't continue. */
+ break;
+ }
+
+ return (sum);
+}
+
+static png_size_t /* PRIVATE */
+png_setup_paeth_row(png_structrp png_ptr, const png_uint_32 bpp,
+ const png_size_t row_bytes, const png_size_t lmins)
+{
+ png_bytep rp, dp, pp, cp, lp;
+ png_size_t i;
+ png_size_t sum = 0;
+ int v;
+
+ png_ptr->try_row[0] = PNG_FILTER_VALUE_PAETH;
+
+ for (i = 0, rp = png_ptr->row_buf + 1, dp = png_ptr->try_row + 1,
+ pp = png_ptr->prev_row + 1; i < bpp; i++)
+ {
+ v = *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff);
+
+ sum += (v < 128) ? v : 256 - v;
+ }
+
+ for (lp = png_ptr->row_buf + 1, cp = png_ptr->prev_row + 1; i < row_bytes;
+ i++)
+ {
+ int a, b, c, pa, pb, pc, p;
+
+ b = *pp++;
+ c = *cp++;
+ a = *lp++;
+
+ p = b - c;
+ pc = a - c;
+
+#ifdef PNG_USE_ABS
+ pa = abs(p);
+ pb = abs(pc);
+ pc = abs(p + pc);
+#else
+ pa = p < 0 ? -p : p;
+ pb = pc < 0 ? -pc : pc;
+ pc = (p + pc) < 0 ? -(p + pc) : p + pc;
+#endif
+
+ p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c;
+
+ v = *dp++ = (png_byte)(((int)*rp++ - p) & 0xff);
+
+ sum += (v < 128) ? v : 256 - v;
+
+ if (sum > lmins) /* We are already worse, don't continue. */
+ break;
+ }
+
+ return (sum);
+}
+#endif /* WRITE_FILTER */
+
void /* PRIVATE */
png_write_find_filter(png_structrp png_ptr, png_row_infop row_info)
{
- png_bytep best_row;
-#ifdef PNG_WRITE_FILTER_SUPPORTED
- png_bytep prev_row, row_buf;
- png_uint_32 mins, bpp;
+#ifndef PNG_WRITE_FILTER_SUPPORTED
+ png_write_filtered_row(png_ptr, png_ptr->row_buf, row_info->rowbytes+1);
+#else
png_byte filter_to_do = png_ptr->do_filter;
+ png_bytep row_buf;
+ png_bytep best_row;
+ png_uint_32 bpp;
+ png_size_t mins;
png_size_t row_bytes = row_info->rowbytes;
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
- int num_p_filters = png_ptr->num_prev_filters;
-#endif
png_debug(1, "in png_write_find_filter");
-#ifndef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
- if (png_ptr->row_number == 0 && filter_to_do == PNG_ALL_FILTERS)
- {
- /* These will never be selected so we need not test them. */
- filter_to_do &= ~(PNG_FILTER_UP | PNG_FILTER_PAETH);
- }
-#endif
-
/* Find out how many bytes offset each pixel is */
bpp = (row_info->pixel_depth + 7) >> 3;
- prev_row = png_ptr->prev_row;
-#endif
- best_row = png_ptr->row_buf;
-#ifdef PNG_WRITE_FILTER_SUPPORTED
- row_buf = best_row;
- mins = PNG_MAXSUM;
+ row_buf = png_ptr->row_buf;
+ mins = PNG_SIZE_MAX - 256/* so we can detect potential overflow of the
+ running sum */;
/* The prediction method we use is to find which method provides the
* smallest value when summing the absolute values of the distances
/* We don't need to test the 'no filter' case if this is the only filter
* that has been chosen, as it doesn't actually do anything to the data.
*/
- if ((filter_to_do & PNG_FILTER_NONE) && filter_to_do != PNG_FILTER_NONE)
+ best_row = png_ptr->row_buf;
+
+
+ if ((filter_to_do & PNG_FILTER_NONE) != 0 && filter_to_do != PNG_FILTER_NONE)
{
png_bytep rp;
- png_uint_32 sum = 0;
+ png_size_t sum = 0;
png_size_t i;
int v;
- for (i = 0, rp = row_buf + 1; i < row_bytes; i++, rp++)
+ if (PNG_SIZE_MAX/128 <= row_bytes)
{
- v = *rp;
- sum += (v < 128) ? v : 256 - v;
- }
+ for (i = 0, rp = row_buf + 1; i < row_bytes; i++, rp++)
+ {
+ /* Check for overflow */
+ if (sum > PNG_SIZE_MAX/128 - 256)
+ break;
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
- if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
+ v = *rp;
+ sum += (v < 128) ? v : 256 - v;
+ }
+ }
+ else /* Overflow is not possible */
{
- png_uint_32 sumhi, sumlo;
- int j;
- sumlo = sum & PNG_LOMASK;
- sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; /* Gives us some footroom */
-
- /* Reduce the sum if we match any of the previous rows */
- for (j = 0; j < num_p_filters; j++)
+ for (i = 0, rp = row_buf + 1; i < row_bytes; i++, rp++)
{
- if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_NONE)
- {
- sumlo = (sumlo * png_ptr->filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
-
- sumhi = (sumhi * png_ptr->filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
- }
+ v = *rp;
+ sum += (v < 128) ? v : 256 - v;
}
-
- /* Factor in the cost of this filter (this is here for completeness,
- * but it makes no sense to have a "cost" for the NONE filter, as
- * it has the minimum possible computational cost - none).
- */
- sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_NONE]) >>
- PNG_COST_SHIFT;
-
- sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_NONE]) >>
- PNG_COST_SHIFT;
-
- if (sumhi > PNG_HIMASK)
- sum = PNG_MAXSUM;
-
- else
- sum = (sumhi << PNG_HISHIFT) + sumlo;
}
-#endif
+
mins = sum;
}
if (filter_to_do == PNG_FILTER_SUB)
/* It's the only filter so no testing is needed */
{
- png_bytep rp, lp, dp;
- png_size_t i;
-
- for (i = 0, rp = row_buf + 1, dp = png_ptr->sub_row + 1; i < bpp;
- i++, rp++, dp++)
- {
- *dp = *rp;
- }
-
- for (lp = row_buf + 1; i < row_bytes;
- i++, rp++, lp++, dp++)
- {
- *dp = (png_byte)(((int)*rp - (int)*lp) & 0xff);
- }
-
- best_row = png_ptr->sub_row;
+ (void) png_setup_sub_row(png_ptr, bpp, row_bytes, mins);
+ best_row = png_ptr->try_row;
}
- else if (filter_to_do & PNG_FILTER_SUB)
+ else if ((filter_to_do & PNG_FILTER_SUB) != 0)
{
- png_bytep rp, dp, lp;
- png_uint_32 sum = 0, lmins = mins;
- png_size_t i;
- int v;
+ png_size_t sum;
+ png_size_t lmins = mins;
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
- /* We temporarily increase the "minimum sum" by the factor we
- * would reduce the sum of this filter, so that we can do the
- * early exit comparison without scaling the sum each time.
- */
- if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
- {
- int j;
- png_uint_32 lmhi, lmlo;
- lmlo = lmins & PNG_LOMASK;
- lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK;
-
- for (j = 0; j < num_p_filters; j++)
- {
- if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_SUB)
- {
- lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
-
- lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
- }
- }
-
- lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >>
- PNG_COST_SHIFT;
-
- lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >>
- PNG_COST_SHIFT;
-
- if (lmhi > PNG_HIMASK)
- lmins = PNG_MAXSUM;
-
- else
- lmins = (lmhi << PNG_HISHIFT) + lmlo;
- }
-#endif
-
- for (i = 0, rp = row_buf + 1, dp = png_ptr->sub_row + 1; i < bpp;
- i++, rp++, dp++)
- {
- v = *dp = *rp;
-
- sum += (v < 128) ? v : 256 - v;
- }
-
- for (lp = row_buf + 1; i < row_bytes;
- i++, rp++, lp++, dp++)
- {
- v = *dp = (png_byte)(((int)*rp - (int)*lp) & 0xff);
-
- sum += (v < 128) ? v : 256 - v;
-
- if (sum > lmins) /* We are already worse, don't continue. */
- break;
- }
-
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
- if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
- {
- int j;
- png_uint_32 sumhi, sumlo;
- sumlo = sum & PNG_LOMASK;
- sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK;
-
- for (j = 0; j < num_p_filters; j++)
- {
- if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_SUB)
- {
- sumlo = (sumlo * png_ptr->inv_filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
-
- sumhi = (sumhi * png_ptr->inv_filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
- }
- }
-
- sumlo = (sumlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >>
- PNG_COST_SHIFT;
-
- sumhi = (sumhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >>
- PNG_COST_SHIFT;
-
- if (sumhi > PNG_HIMASK)
- sum = PNG_MAXSUM;
-
- else
- sum = (sumhi << PNG_HISHIFT) + sumlo;
- }
-#endif
+ sum = png_setup_sub_row(png_ptr, bpp, row_bytes, lmins);
if (sum < mins)
{
mins = sum;
- best_row = png_ptr->sub_row;
+ best_row = png_ptr->try_row;
+ if (png_ptr->tst_row != NULL)
+ {
+ png_ptr->try_row = png_ptr->tst_row;
+ png_ptr->tst_row = best_row;
+ }
}
}
/* Up filter */
if (filter_to_do == PNG_FILTER_UP)
{
- png_bytep rp, dp, pp;
- png_size_t i;
-
- for (i = 0, rp = row_buf + 1, dp = png_ptr->up_row + 1,
- pp = prev_row + 1; i < row_bytes;
- i++, rp++, pp++, dp++)
- {
- *dp = (png_byte)(((int)*rp - (int)*pp) & 0xff);
- }
-
- best_row = png_ptr->up_row;
+ (void) png_setup_up_row(png_ptr, row_bytes, mins);
+ best_row = png_ptr->try_row;
}
- else if (filter_to_do & PNG_FILTER_UP)
+ else if ((filter_to_do & PNG_FILTER_UP) != 0)
{
- png_bytep rp, dp, pp;
- png_uint_32 sum = 0, lmins = mins;
- png_size_t i;
- int v;
-
-
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
- if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
- {
- int j;
- png_uint_32 lmhi, lmlo;
- lmlo = lmins & PNG_LOMASK;
- lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK;
-
- for (j = 0; j < num_p_filters; j++)
- {
- if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_UP)
- {
- lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
-
- lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
- }
- }
-
- lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_UP]) >>
- PNG_COST_SHIFT;
-
- lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_UP]) >>
- PNG_COST_SHIFT;
-
- if (lmhi > PNG_HIMASK)
- lmins = PNG_MAXSUM;
-
- else
- lmins = (lmhi << PNG_HISHIFT) + lmlo;
- }
-#endif
-
- for (i = 0, rp = row_buf + 1, dp = png_ptr->up_row + 1,
- pp = prev_row + 1; i < row_bytes; i++)
- {
- v = *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff);
-
- sum += (v < 128) ? v : 256 - v;
-
- if (sum > lmins) /* We are already worse, don't continue. */
- break;
- }
+ png_size_t sum;
+ png_size_t lmins = mins;
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
- if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
- {
- int j;
- png_uint_32 sumhi, sumlo;
- sumlo = sum & PNG_LOMASK;
- sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK;
-
- for (j = 0; j < num_p_filters; j++)
- {
- if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_UP)
- {
- sumlo = (sumlo * png_ptr->filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
-
- sumhi = (sumhi * png_ptr->filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
- }
- }
-
- sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_UP]) >>
- PNG_COST_SHIFT;
-
- sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_UP]) >>
- PNG_COST_SHIFT;
-
- if (sumhi > PNG_HIMASK)
- sum = PNG_MAXSUM;
-
- else
- sum = (sumhi << PNG_HISHIFT) + sumlo;
- }
-#endif
+ sum = png_setup_up_row(png_ptr, row_bytes, lmins);
if (sum < mins)
{
mins = sum;
- best_row = png_ptr->up_row;
+ best_row = png_ptr->try_row;
+ if (png_ptr->tst_row != NULL)
+ {
+ png_ptr->try_row = png_ptr->tst_row;
+ png_ptr->tst_row = best_row;
+ }
}
}
/* Avg filter */
if (filter_to_do == PNG_FILTER_AVG)
{
- png_bytep rp, dp, pp, lp;
- png_uint_32 i;
-
- for (i = 0, rp = row_buf + 1, dp = png_ptr->avg_row + 1,
- pp = prev_row + 1; i < bpp; i++)
- {
- *dp++ = (png_byte)(((int)*rp++ - ((int)*pp++ / 2)) & 0xff);
- }
-
- for (lp = row_buf + 1; i < row_bytes; i++)
- {
- *dp++ = (png_byte)(((int)*rp++ - (((int)*pp++ + (int)*lp++) / 2))
- & 0xff);
- }
- best_row = png_ptr->avg_row;
+ (void) png_setup_avg_row(png_ptr, bpp, row_bytes, mins);
+ best_row = png_ptr->try_row;
}
- else if (filter_to_do & PNG_FILTER_AVG)
+ else if ((filter_to_do & PNG_FILTER_AVG) != 0)
{
- png_bytep rp, dp, pp, lp;
- png_uint_32 sum = 0, lmins = mins;
- png_size_t i;
- int v;
-
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
- if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
- {
- int j;
- png_uint_32 lmhi, lmlo;
- lmlo = lmins & PNG_LOMASK;
- lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK;
-
- for (j = 0; j < num_p_filters; j++)
- {
- if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_AVG)
- {
- lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
-
- lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
- }
- }
-
- lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_AVG]) >>
- PNG_COST_SHIFT;
-
- lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_AVG]) >>
- PNG_COST_SHIFT;
-
- if (lmhi > PNG_HIMASK)
- lmins = PNG_MAXSUM;
-
- else
- lmins = (lmhi << PNG_HISHIFT) + lmlo;
- }
-#endif
-
- for (i = 0, rp = row_buf + 1, dp = png_ptr->avg_row + 1,
- pp = prev_row + 1; i < bpp; i++)
- {
- v = *dp++ = (png_byte)(((int)*rp++ - ((int)*pp++ / 2)) & 0xff);
-
- sum += (v < 128) ? v : 256 - v;
- }
-
- for (lp = row_buf + 1; i < row_bytes; i++)
- {
- v = *dp++ =
- (png_byte)(((int)*rp++ - (((int)*pp++ + (int)*lp++) / 2)) & 0xff);
-
- sum += (v < 128) ? v : 256 - v;
-
- if (sum > lmins) /* We are already worse, don't continue. */
- break;
- }
-
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
- if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
- {
- int j;
- png_uint_32 sumhi, sumlo;
- sumlo = sum & PNG_LOMASK;
- sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK;
-
- for (j = 0; j < num_p_filters; j++)
- {
- if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_NONE)
- {
- sumlo = (sumlo * png_ptr->filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
-
- sumhi = (sumhi * png_ptr->filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
- }
- }
-
- sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_AVG]) >>
- PNG_COST_SHIFT;
-
- sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_AVG]) >>
- PNG_COST_SHIFT;
+ png_size_t sum;
+ png_size_t lmins = mins;
- if (sumhi > PNG_HIMASK)
- sum = PNG_MAXSUM;
-
- else
- sum = (sumhi << PNG_HISHIFT) + sumlo;
- }
-#endif
+ sum= png_setup_avg_row(png_ptr, bpp, row_bytes, lmins);
if (sum < mins)
{
mins = sum;
- best_row = png_ptr->avg_row;
+ best_row = png_ptr->try_row;
+ if (png_ptr->tst_row != NULL)
+ {
+ png_ptr->try_row = png_ptr->tst_row;
+ png_ptr->tst_row = best_row;
+ }
}
}
/* Paeth filter */
- if (filter_to_do == PNG_FILTER_PAETH)
+ if ((filter_to_do == PNG_FILTER_PAETH) != 0)
{
- png_bytep rp, dp, pp, cp, lp;
- png_size_t i;
-
- for (i = 0, rp = row_buf + 1, dp = png_ptr->paeth_row + 1,
- pp = prev_row + 1; i < bpp; i++)
- {
- *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff);
- }
-
- for (lp = row_buf + 1, cp = prev_row + 1; i < row_bytes; i++)
- {
- int a, b, c, pa, pb, pc, p;
-
- b = *pp++;
- c = *cp++;
- a = *lp++;
-
- p = b - c;
- pc = a - c;
-
-#ifdef PNG_USE_ABS
- pa = abs(p);
- pb = abs(pc);
- pc = abs(p + pc);
-#else
- pa = p < 0 ? -p : p;
- pb = pc < 0 ? -pc : pc;
- pc = (p + pc) < 0 ? -(p + pc) : p + pc;
-#endif
-
- p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c;
-
- *dp++ = (png_byte)(((int)*rp++ - p) & 0xff);
- }
- best_row = png_ptr->paeth_row;
+ (void) png_setup_paeth_row(png_ptr, bpp, row_bytes, mins);
+ best_row = png_ptr->try_row;
}
- else if (filter_to_do & PNG_FILTER_PAETH)
+ else if ((filter_to_do & PNG_FILTER_PAETH) != 0)
{
- png_bytep rp, dp, pp, cp, lp;
- png_uint_32 sum = 0, lmins = mins;
- png_size_t i;
- int v;
-
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
- if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
- {
- int j;
- png_uint_32 lmhi, lmlo;
- lmlo = lmins & PNG_LOMASK;
- lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK;
-
- for (j = 0; j < num_p_filters; j++)
- {
- if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_PAETH)
- {
- lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
-
- lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
- }
- }
-
- lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_PAETH]) >>
- PNG_COST_SHIFT;
-
- lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_PAETH]) >>
- PNG_COST_SHIFT;
-
- if (lmhi > PNG_HIMASK)
- lmins = PNG_MAXSUM;
-
- else
- lmins = (lmhi << PNG_HISHIFT) + lmlo;
- }
-#endif
-
- for (i = 0, rp = row_buf + 1, dp = png_ptr->paeth_row + 1,
- pp = prev_row + 1; i < bpp; i++)
- {
- v = *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff);
-
- sum += (v < 128) ? v : 256 - v;
- }
-
- for (lp = row_buf + 1, cp = prev_row + 1; i < row_bytes; i++)
- {
- int a, b, c, pa, pb, pc, p;
-
- b = *pp++;
- c = *cp++;
- a = *lp++;
-
-#ifndef PNG_SLOW_PAETH
- p = b - c;
- pc = a - c;
-#ifdef PNG_USE_ABS
- pa = abs(p);
- pb = abs(pc);
- pc = abs(p + pc);
-#else
- pa = p < 0 ? -p : p;
- pb = pc < 0 ? -pc : pc;
- pc = (p + pc) < 0 ? -(p + pc) : p + pc;
-#endif
- p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c;
-#else /* PNG_SLOW_PAETH */
- p = a + b - c;
- pa = abs(p - a);
- pb = abs(p - b);
- pc = abs(p - c);
-
- if (pa <= pb && pa <= pc)
- p = a;
-
- else if (pb <= pc)
- p = b;
-
- else
- p = c;
-#endif /* PNG_SLOW_PAETH */
+ png_size_t sum;
+ png_size_t lmins = mins;
- v = *dp++ = (png_byte)(((int)*rp++ - p) & 0xff);
+ sum = png_setup_paeth_row(png_ptr, bpp, row_bytes, lmins);
- sum += (v < 128) ? v : 256 - v;
-
- if (sum > lmins) /* We are already worse, don't continue. */
- break;
- }
-
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
- if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED)
+ if (sum < mins)
{
- int j;
- png_uint_32 sumhi, sumlo;
- sumlo = sum & PNG_LOMASK;
- sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK;
-
- for (j = 0; j < num_p_filters; j++)
+ best_row = png_ptr->try_row;
+ if (png_ptr->tst_row != NULL)
{
- if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_PAETH)
- {
- sumlo = (sumlo * png_ptr->filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
-
- sumhi = (sumhi * png_ptr->filter_weights[j]) >>
- PNG_WEIGHT_SHIFT;
- }
+ png_ptr->try_row = png_ptr->tst_row;
+ png_ptr->tst_row = best_row;
}
-
- sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_PAETH]) >>
- PNG_COST_SHIFT;
-
- sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_PAETH]) >>
- PNG_COST_SHIFT;
-
- if (sumhi > PNG_HIMASK)
- sum = PNG_MAXSUM;
-
- else
- sum = (sumhi << PNG_HISHIFT) + sumlo;
- }
-#endif
-
- if (sum < mins)
- {
- best_row = png_ptr->paeth_row;
}
}
-#endif /* PNG_WRITE_FILTER_SUPPORTED */
/* Do the actual writing of the filtered row data from the chosen filter. */
png_write_filtered_row(png_ptr, best_row, row_info->rowbytes+1);
-#ifdef PNG_WRITE_FILTER_SUPPORTED
-#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
- /* Save the type of filter we picked this time for future calculations */
- if (png_ptr->num_prev_filters > 0)
- {
- int j;
-
- for (j = 1; j < num_p_filters; j++)
- {
- png_ptr->prev_filters[j] = png_ptr->prev_filters[j - 1];
- }
-
- png_ptr->prev_filters[j] = best_row[0];
- }
-#endif
-#endif /* PNG_WRITE_FILTER_SUPPORTED */
+#endif /* WRITE_FILTER */
}
png_compress_IDAT(png_ptr, filtered_row, full_row_length, Z_NO_FLUSH);
+#ifdef PNG_WRITE_FILTER_SUPPORTED
/* Swap the current and previous rows */
if (png_ptr->prev_row != NULL)
{
png_ptr->prev_row = png_ptr->row_buf;
png_ptr->row_buf = tptr;
}
+#endif /* WRITE_FILTER */
/* Finish row - updates counters and flushes zlib if last row */
png_write_finish_row(png_ptr);
{
png_write_flush(png_ptr);
}
-#endif
+#endif /* WRITE_FLUSH */
}
-#endif /* PNG_WRITE_SUPPORTED */
+#endif /* WRITE */
VisualStudio instructions
-libpng version 1.6.13 - August 21, 2014
+libpng version 1.6.21 - January 15, 2016
-Copyright (c) 1998-2010 Glenn Randers-Pehrson
+Copyright (c) 2010,2013,2015 Glenn Randers-Pehrson
This code is released under the libpng license.
For conditions of distribution and use, see the disclaimer
If you use Visual Studio defaults to build your application you will have no
problems.
-If you don't use the Visual Studio defaults your application must still be built
-with the default runtime option (/MD). If, for some reason, it is not then your
-application will crash inside libpng16.dll as soon as libpng tries to read
-from a file handle you pass in.
+If you don't use the Visual Studio defaults your application must still be
+built with the default runtime option (/MD). If, for some reason, it is not
+then your application will crash inside libpng16.dll as soon as libpng
+tries to read from a file handle you pass in.
If you do not want to use the DLL, for example for a very small application,
the 'release library' configuration may be more appropriate. This is built
with a non-standard runtime library - the "MultiThreaded" version. When you
build your application it must be compiled with this option (/MT), otherwise
-it will not build (if you are lucky) or crash (if you are not.)
+it will not build (if you are lucky) or crash (if you are not.) See the
+WARNING file that is distributed along with this readme.txt.
Stop reading here
=================
The debug build of libpng is minimally supported. Support for debug builds of
zlib is also minimal. You really don't want to do this.
+
+WARNING
+=======
+Libpng 1.6.x does not use the default run-time library when building static
+library builds of libpng; instead of the shared DLL runtime it uses a static
+runtime. If you need to change this make sure to change the setting on all the
+relevant projects:
+
+ libpng
+ zlib
+ all the test programs
+
+The runtime library settings for each build are as follows:
+
+ Release Debug
+ DLL /MD /MDd
+ Library /MT /MTd
+
+NOTICE that libpng 1.5.x erroneously used /MD for Debug DLL builds; if you used
+the debug builds in your app and you changed your app to use /MD you will need
+to change it back to /MDd for libpng 1.6.0 and later.
+
+The Visual Studio 2010 defaults for a Win32 DLL or Static Library project are
+as follows:
+
+ Release Debug
+ DLL /MD /MDd
+ Static Library /MD /MDd
+
+++ /dev/null
-WARNING
-=======
-Libpng 1.6 does not use the default run-time library when building static
-library builds of libpng; instead of the shared DLL runtime it uses a static
-runtime. If you need to change this make sure to change the setting on all the
-relevant projects:
-
-libpng
-zlib
-all the test programs
-
-The runtime library settings for each build are as follows:
-
- Release Debug
-DLL /MD /MDd
-Library /MT /MTd
-
-NOTICE that libpng 1.5 erroneously used /MD for Debug DLL builds; if you used
-the debug builds in your app and you changed your app to use /MD you will need
-to change it to /MDd for libpng 1.6.
-
-The Visual Studio 2010 defaults for a Win32 DLL or Static Library project are
-as follows:
-
- Release Debug
-DLL /MD /MDd
-Static Library /MD /MDd
<!--
* zlib.props - location of zlib source
*
- * libpng version 1.6.13 - August 21, 2014
+ * libpng version 1.6.21 - January 15, 2016
*
* Copyright (c) 1998-2011 Glenn Randers-Pehrson
*
-Makefiles for libpng version 1.6.13 - August 21, 2014
+Makefiles for libpng version 1.6.21 - January 15, 2016
pnglibconf.h.prebuilt => Stores configuration settings
makefile.linux => Linux/ELF makefile
- (gcc, creates libpng16.so.16.1.6.13)
+ (gcc, creates libpng16.so.16.1.6.21)
makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with
ansi2knr (Requires ansi2knr.c from
makefile.os2 => OS/2 Makefile (gcc and emx, requires libpng.def)
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
makefile.sggcc => Silicon Graphics (gcc,
- creates libpng16.so.16.1.6.13)
+ creates libpng16.so.16.1.6.21)
makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
makefile.solaris => Solaris 2.X makefile (gcc,
- creates libpng16.so.16.1.6.13)
+ creates libpng16.so.16.1.6.21)
makefile.so9 => Solaris 9 makefile (gcc,
- creates libpng16.so.16.1.6.13)
+ creates libpng16.so.16.1.6.21)
makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.sunos => Sun makefile
makefile.32sunu => Sun Ultra 32-bit makefile
-/* def.dfn - define format of libpng.def
+/* def.c - define format of libpng.def
*
- * Last changed in libpng version 1.5.7 [December 15, 2011]
- * Copyright (c) 2010-2011 Glenn Randers-Pehrson
+ * Last changed in libpng version 1.6.16 [December 22, 2014]
+ * Copyright (c) 2011-2014 Glenn Randers-Pehrson
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
PNG_DFN "OS2 CODE PRELOAD MOVEABLE DISCARDABLE"
PNG_DFN ""
PNG_DFN "EXPORTS"
-PNG_DFN ";Version 1.6.13"
+PNG_DFN ";Version 1.6.21"
#define PNG_EXPORTA(ordinal, type, name, args, attributes)\
PNG_DFN "@" SYMBOL_PREFIX "@@" name "@"
BEGIN{
out="/dev/null" # as a flag
out_count=0 # count of output lines
- err=0 # set if an error occured
+ err=0 # set if an error occurred
sort=0 # sort the output
array[""]=""
}
-/* intprefix.dfn - generate an unprefixed internal symbol list
+/* intprefix.c - generate an unprefixed internal symbol list
*
- * Last changed in libpng version 1.6.0 [January 30, 2012]
- * Copyright (c) 2012 Glenn Randers-Pehrson
+ * Last changed in libpng version 1.6.16 [December 22, 2014]
+ * Copyright (c) 2013-2014 Glenn Randers-Pehrson
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
# Modeled after libxml-config.
-version=1.6.13
+version=1.6.21
prefix=""
libdir=""
libs=""
Name: libpng
Description: Loads and saves PNG files
-Version: 1.6.13
+Version: 1.6.21
Libs: -L${libdir} -lpng16
Cflags: -I${includedir}
# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*-
#
-# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
-# 2006, 2007, 2008, 2009, 2010, 2011 Free Software
-# Foundation, Inc.
+# Copyright (C) 1996-2001, 2003-2015 Free Software Foundation, Inc.
# Written by Gordon Matzigkeit, 1996
#
# This file is free software; the Free Software Foundation gives
# modifications, as long as this notice is preserved.
m4_define([_LT_COPYING], [dnl
-# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
-# 2006, 2007, 2008, 2009, 2010, 2011 Free Software
-# Foundation, Inc.
-# Written by Gordon Matzigkeit, 1996
-#
-# This file is part of GNU Libtool.
-#
-# GNU Libtool is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
+# Copyright (C) 2014 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions. There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# GNU Libtool is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of of the License, or
+# (at your option) any later version.
#
-# As a special exception to the GNU General Public License,
-# if you distribute this file as part of a program or library that
-# is built using GNU Libtool, you may include this file under the
-# same distribution terms that you use for the rest of that program.
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program or library that is built
+# using GNU Libtool, you may include this file under the same
+# distribution terms that you use for the rest of that program.
#
-# GNU Libtool is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# GNU Libtool is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
-# along with GNU Libtool; see the file COPYING. If not, a copy
-# can be downloaded from http://www.gnu.org/licenses/gpl.html, or
-# obtained by writing to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
])
-# serial 57 LT_INIT
+# serial 58 LT_INIT
# LT_PREREQ(VERSION)
# LT_INIT([OPTIONS])
# ------------------
AC_DEFUN([LT_INIT],
-[AC_PREREQ([2.58])dnl We use AC_INCLUDES_DEFAULT
+[AC_PREREQ([2.62])dnl We use AC_PATH_PROGS_FEATURE_CHECK
AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
AC_BEFORE([$0], [LT_LANG])dnl
AC_BEFORE([$0], [LT_OUTPUT])dnl
_LT_SET_OPTIONS([$0], [$1])
# This can be used to rebuild libtool when needed
-LIBTOOL_DEPS="$ltmain"
+LIBTOOL_DEPS=$ltmain
# Always use our own libtool.
LIBTOOL='$(SHELL) $(top_builddir)/libtool'
dnl AC_DEFUN([AM_PROG_LIBTOOL], [])
+# _LT_PREPARE_CC_BASENAME
+# -----------------------
+m4_defun([_LT_PREPARE_CC_BASENAME], [
+# Calculate cc_basename. Skip known compiler wrappers and cross-prefix.
+func_cc_basename ()
+{
+ for cc_temp in @S|@*""; do
+ case $cc_temp in
+ compile | *[[\\/]]compile | ccache | *[[\\/]]ccache ) ;;
+ distcc | *[[\\/]]distcc | purify | *[[\\/]]purify ) ;;
+ \-*) ;;
+ *) break;;
+ esac
+ done
+ func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+}
+])# _LT_PREPARE_CC_BASENAME
+
+
# _LT_CC_BASENAME(CC)
# -------------------
-# Calculate cc_basename. Skip known compiler wrappers and cross-prefix.
+# It would be clearer to call AC_REQUIREs from _LT_PREPARE_CC_BASENAME,
+# but that macro is also expanded into generated libtool script, which
+# arranges for $SED and $ECHO to be set by different means.
m4_defun([_LT_CC_BASENAME],
-[for cc_temp in $1""; do
- case $cc_temp in
- compile | *[[\\/]]compile | ccache | *[[\\/]]ccache ) ;;
- distcc | *[[\\/]]distcc | purify | *[[\\/]]purify ) ;;
- \-*) ;;
- *) break;;
- esac
-done
-cc_basename=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+[m4_require([_LT_PREPARE_CC_BASENAME])dnl
+AC_REQUIRE([_LT_DECL_SED])dnl
+AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl
+func_cc_basename $1
+cc_basename=$func_cc_basename_result
])
# _LT_FILEUTILS_DEFAULTS
# ----------------------
# It is okay to use these file commands and assume they have been set
-# sensibly after `m4_require([_LT_FILEUTILS_DEFAULTS])'.
+# sensibly after 'm4_require([_LT_FILEUTILS_DEFAULTS])'.
m4_defun([_LT_FILEUTILS_DEFAULTS],
[: ${CP="cp -f"}
: ${MV="mv -f"}
m4_require([_LT_CMD_OLD_ARCHIVE])dnl
m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
m4_require([_LT_WITH_SYSROOT])dnl
+m4_require([_LT_CMD_TRUNCATE])dnl
_LT_CONFIG_LIBTOOL_INIT([
-# See if we are running on zsh, and set the options which allow our
+# See if we are running on zsh, and set the options that allow our
# commands through without removal of \ escapes INIT.
-if test -n "\${ZSH_VERSION+set}" ; then
+if test -n "\${ZSH_VERSION+set}"; then
setopt NO_GLOB_SUBST
fi
])
-if test -n "${ZSH_VERSION+set}" ; then
+if test -n "${ZSH_VERSION+set}"; then
setopt NO_GLOB_SUBST
fi
# AIX sometimes has problems with the GCC collect2 program. For some
# reason, if we set the COLLECT_NAMES environment variable, the problems
# vanish in a puff of smoke.
- if test "X${COLLECT_NAMES+set}" != Xset; then
+ if test set != "${COLLECT_NAMES+set}"; then
COLLECT_NAMES=
export COLLECT_NAMES
fi
ofile=libtool
can_build_shared=yes
-# All known linkers require a `.a' archive for static linking (except MSVC,
+# All known linkers require a '.a' archive for static linking (except MSVC,
# which needs '.lib').
libext=a
-with_gnu_ld="$lt_cv_prog_gnu_ld"
+with_gnu_ld=$lt_cv_prog_gnu_ld
-old_CC="$CC"
-old_CFLAGS="$CFLAGS"
+old_CC=$CC
+old_CFLAGS=$CFLAGS
# Set sane defaults for various variables
test -z "$CC" && CC=cc
# _LT_PROG_LTMAIN
# ---------------
-# Note that this code is called both from `configure', and `config.status'
+# Note that this code is called both from 'configure', and 'config.status'
# now that we use AC_CONFIG_COMMANDS to generate libtool. Notably,
-# `config.status' has no value for ac_aux_dir unless we are using Automake,
+# 'config.status' has no value for ac_aux_dir unless we are using Automake,
# so we pass a copy along to make sure it has a sensible value anyway.
m4_defun([_LT_PROG_LTMAIN],
[m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([ltmain.sh])])dnl
_LT_CONFIG_LIBTOOL_INIT([ac_aux_dir='$ac_aux_dir'])
-ltmain="$ac_aux_dir/ltmain.sh"
+ltmain=$ac_aux_dir/ltmain.sh
])# _LT_PROG_LTMAIN
# So that we can recreate a full libtool script including additional
# tags, we accumulate the chunks of code to send to AC_CONFIG_COMMANDS
-# in macros and then make a single call at the end using the `libtool'
+# in macros and then make a single call at the end using the 'libtool'
# label.
# _LT_CONFIG_STATUS_DECLARE([VARNAME])
# ------------------------------------
-# Quote a variable value, and forward it to `config.status' so that its
-# declaration there will have the same value as in `configure'. VARNAME
+# Quote a variable value, and forward it to 'config.status' so that its
+# declaration there will have the same value as in 'configure'. VARNAME
# must have a single quote delimited value for this to work.
m4_define([_LT_CONFIG_STATUS_DECLARE],
[$1='`$ECHO "$][$1" | $SED "$delay_single_quote_subst"`'])
# Output comment and list of tags supported by the script
m4_defun([_LT_LIBTOOL_TAGS],
[_LT_FORMAT_COMMENT([The names of the tagged configurations supported by this script])dnl
-available_tags="_LT_TAGS"dnl
+available_tags='_LT_TAGS'dnl
])
# _LT_LIBTOOL_CONFIG_VARS
# -----------------------
# Produce commented declarations of non-tagged libtool config variables
-# suitable for insertion in the LIBTOOL CONFIG section of the `libtool'
+# suitable for insertion in the LIBTOOL CONFIG section of the 'libtool'
# script. Tagged libtool config variables (even for the LIBTOOL CONFIG
# section) are produced by _LT_LIBTOOL_TAG_VARS.
m4_defun([_LT_LIBTOOL_CONFIG_VARS],
# Send accumulated output to $CONFIG_STATUS. Thanks to the lists of
# variables for single and double quote escaping we saved from calls
# to _LT_DECL, we can put quote escaped variables declarations
-# into `config.status', and then the shell code to quote escape them in
-# for loops in `config.status'. Finally, any additional code accumulated
+# into 'config.status', and then the shell code to quote escape them in
+# for loops in 'config.status'. Finally, any additional code accumulated
# from calls to _LT_CONFIG_LIBTOOL_INIT is expanded.
m4_defun([_LT_CONFIG_COMMANDS],
[AC_PROVIDE_IFELSE([LT_OUTPUT],
]], lt_decl_quote_varnames); do
case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
*[[\\\\\\\`\\"\\\$]]*)
- eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\""
+ eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
;;
*)
eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
]], lt_decl_dquote_varnames); do
case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
*[[\\\\\\\`\\"\\\$]]*)
- eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\""
+ eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
;;
*)
eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
# Generate a child script FILE with all initialization necessary to
# reuse the environment learned by the parent script, and make the
# file executable. If COMMENT is supplied, it is inserted after the
-# `#!' sequence but before initialization text begins. After this
+# '#!' sequence but before initialization text begins. After this
# macro, additional text can be appended to FILE to form the body of
# the child script. The macro ends with non-zero status if the
# file could not be fully written (such as if the disk is full).
_AS_PREPARE
exec AS_MESSAGE_FD>&1
_ASEOF
-test $lt_write_fail = 0 && chmod +x $1[]dnl
+test 0 = "$lt_write_fail" && chmod +x $1[]dnl
m4_popdef([AS_MESSAGE_LOG_FD])])])# _LT_GENERATED_FILE_INIT
# LT_OUTPUT
} >&AS_MESSAGE_LOG_FD
lt_cl_help="\
-\`$as_me' creates a local libtool stub from the current configuration,
+'$as_me' creates a local libtool stub from the current configuration,
for use in further configure time tests before the real libtool is
generated.
This config.lt script is free software; the Free Software Foundation
gives unlimited permision to copy, distribute and modify it."
-while test $[#] != 0
+while test 0 != $[#]
do
case $[1] in
--version | --v* | -V )
lt_cl_silent=: ;;
-*) AC_MSG_ERROR([unrecognized option: $[1]
-Try \`$[0] --help' for more information.]) ;;
+Try '$[0] --help' for more information.]) ;;
*) AC_MSG_ERROR([unrecognized argument: $[1]
-Try \`$[0] --help' for more information.]) ;;
+Try '$[0] --help' for more information.]) ;;
esac
shift
done
# open by configure. Here we exec the FD to /dev/null, effectively closing
# config.log, so it can be properly (re)opened and appended to by config.lt.
lt_cl_success=:
-test "$silent" = yes &&
+test yes = "$silent" &&
lt_config_lt_args="$lt_config_lt_args --quiet"
exec AS_MESSAGE_LOG_FD>/dev/null
$SHELL "$CONFIG_LT" $lt_config_lt_args || lt_cl_success=false
_LT_CONFIG_SAVE_COMMANDS([
m4_define([_LT_TAG], m4_if([$1], [], [C], [$1]))dnl
m4_if(_LT_TAG, [C], [
- # See if we are running on zsh, and set the options which allow our
+ # See if we are running on zsh, and set the options that allow our
# commands through without removal of \ escapes.
- if test -n "${ZSH_VERSION+set}" ; then
+ if test -n "${ZSH_VERSION+set}"; then
setopt NO_GLOB_SUBST
fi
- cfgfile="${ofile}T"
+ cfgfile=${ofile}T
trap "$RM \"$cfgfile\"; exit 1" 1 2 15
$RM "$cfgfile"
cat <<_LT_EOF >> "$cfgfile"
#! $SHELL
-
-# `$ECHO "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
-# Generated automatically by $as_me ($PACKAGE$TIMESTAMP) $VERSION
+# Generated automatically by $as_me ($PACKAGE) $VERSION
# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
# NOTE: Changes made to this file will be lost: look at ltmain.sh.
-#
+
+# Provide generalized library-building support services.
+# Written by Gordon Matzigkeit, 1996
+
_LT_COPYING
_LT_LIBTOOL_TAGS
+# Configured defaults for sys_lib_dlsearch_path munging.
+: \${LT_SYS_LIBRARY_PATH="$configure_time_lt_sys_library_path"}
+
# ### BEGIN LIBTOOL CONFIG
_LT_LIBTOOL_CONFIG_VARS
_LT_LIBTOOL_TAG_VARS
_LT_EOF
+ cat <<'_LT_EOF' >> "$cfgfile"
+
+# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE
+
+_LT_PREPARE_MUNGE_PATH_LIST
+_LT_PREPARE_CC_BASENAME
+
+# ### END FUNCTIONS SHARED WITH CONFIGURE
+
+_LT_EOF
+
case $host_os in
aix3*)
cat <<\_LT_EOF >> "$cfgfile"
# AIX sometimes has problems with the GCC collect2 program. For some
# reason, if we set the COLLECT_NAMES environment variable, the problems
# vanish in a puff of smoke.
-if test "X${COLLECT_NAMES+set}" != Xset; then
+if test set != "${COLLECT_NAMES+set}"; then
COLLECT_NAMES=
export COLLECT_NAMES
fi
sed '$q' "$ltmain" >> "$cfgfile" \
|| (rm -f "$cfgfile"; exit 1)
- _LT_PROG_REPLACE_SHELLFNS
-
mv -f "$cfgfile" "$ofile" ||
(rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
chmod +x "$ofile"
[m4_if([$1], [], [
PACKAGE='$PACKAGE'
VERSION='$VERSION'
- TIMESTAMP='$TIMESTAMP'
RM='$RM'
ofile='$ofile'], [])
])dnl /_LT_CONFIG_SAVE_COMMANDS
AC_CACHE_CHECK([for -single_module linker flag],[lt_cv_apple_cc_single_mod],
[lt_cv_apple_cc_single_mod=no
- if test -z "${LT_MULTI_MODULE}"; then
+ if test -z "$LT_MULTI_MODULE"; then
# By default we will add the -single_module flag. You can override
# by either setting the environment variable LT_MULTI_MODULE
# non-empty at configure time, or by adding -multi_module to the
cat conftest.err >&AS_MESSAGE_LOG_FD
# Otherwise, if the output was created with a 0 exit code from
# the compiler, it worked.
- elif test -f libconftest.dylib && test $_lt_result -eq 0; then
+ elif test -f libconftest.dylib && test 0 = "$_lt_result"; then
lt_cv_apple_cc_single_mod=yes
else
cat conftest.err >&AS_MESSAGE_LOG_FD
AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
[lt_cv_ld_exported_symbols_list=yes],
[lt_cv_ld_exported_symbols_list=no])
- LDFLAGS="$save_LDFLAGS"
+ LDFLAGS=$save_LDFLAGS
])
AC_CACHE_CHECK([for -force_load linker flag],[lt_cv_ld_force_load],
_lt_result=$?
if test -s conftest.err && $GREP force_load conftest.err; then
cat conftest.err >&AS_MESSAGE_LOG_FD
- elif test -f conftest && test $_lt_result -eq 0 && $GREP forced_load conftest >/dev/null 2>&1 ; then
+ elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then
lt_cv_ld_force_load=yes
else
cat conftest.err >&AS_MESSAGE_LOG_FD
])
case $host_os in
rhapsody* | darwin1.[[012]])
- _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
+ _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;;
darwin1.*)
- _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+ _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
darwin*) # darwin 5.x on
# if running on 10.5 or later, the deployment target defaults
# to the OS version, if on x86, and 10.4, the deployment
# target defaults to 10.4. Don't you love it?
case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
10.0,*86*-darwin8*|10.0,*-darwin[[91]]*)
- _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
- 10.[[012]]*)
- _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+ _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+ 10.[[012]][[,.]]*)
+ _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
10.*)
- _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+ _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
esac
;;
esac
- if test "$lt_cv_apple_cc_single_mod" = "yes"; then
+ if test yes = "$lt_cv_apple_cc_single_mod"; then
_lt_dar_single_mod='$single_module'
fi
- if test "$lt_cv_ld_exported_symbols_list" = "yes"; then
- _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym'
+ if test yes = "$lt_cv_ld_exported_symbols_list"; then
+ _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym'
else
- _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}'
+ _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib'
fi
- if test "$DSYMUTIL" != ":" && test "$lt_cv_ld_force_load" = "no"; then
+ if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then
_lt_dsymutil='~$DSYMUTIL $lib || :'
else
_lt_dsymutil=
_LT_TAGVAR(hardcode_direct, $1)=no
_LT_TAGVAR(hardcode_automatic, $1)=yes
_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
- if test "$lt_cv_ld_force_load" = "yes"; then
- _LT_TAGVAR(whole_archive_flag_spec, $1)='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+ if test yes = "$lt_cv_ld_force_load"; then
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
m4_case([$1], [F77], [_LT_TAGVAR(compiler_needs_object, $1)=yes],
[FC], [_LT_TAGVAR(compiler_needs_object, $1)=yes])
else
_LT_TAGVAR(whole_archive_flag_spec, $1)=''
fi
_LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(allow_undefined_flag, $1)="$_lt_dar_allow_undefined"
+ _LT_TAGVAR(allow_undefined_flag, $1)=$_lt_dar_allow_undefined
case $cc_basename in
- ifort*) _lt_dar_can_shared=yes ;;
+ ifort*|nagfor*) _lt_dar_can_shared=yes ;;
*) _lt_dar_can_shared=$GCC ;;
esac
- if test "$_lt_dar_can_shared" = "yes"; then
+ if test yes = "$_lt_dar_can_shared"; then
output_verbose_link_cmd=func_echo_all
- _LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
- _LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
- _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
- _LT_TAGVAR(module_expsym_cmds, $1)="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"
+ _LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil"
+ _LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil"
+ _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil"
+ _LT_TAGVAR(module_expsym_cmds, $1)="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil"
m4_if([$1], [CXX],
-[ if test "$lt_cv_apple_cc_single_mod" != "yes"; then
- _LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dsymutil}"
- _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dar_export_syms}${_lt_dsymutil}"
+[ if test yes != "$lt_cv_apple_cc_single_mod"; then
+ _LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dsymutil"
+ _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dar_export_syms$_lt_dsymutil"
fi
],[])
else
# Allow to override them for all tags through lt_cv_aix_libpath.
m4_defun([_LT_SYS_MODULE_PATH_AIX],
[m4_require([_LT_DECL_SED])dnl
-if test "${lt_cv_aix_libpath+set}" = set; then
+if test set = "${lt_cv_aix_libpath+set}"; then
aix_libpath=$lt_cv_aix_libpath
else
AC_CACHE_VAL([_LT_TAGVAR([lt_cv_aix_libpath_], [$1])],
_LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
fi],[])
if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then
- _LT_TAGVAR([lt_cv_aix_libpath_], [$1])="/usr/lib:/lib"
+ _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=/usr/lib:/lib
fi
])
aix_libpath=$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])
# -----------------------
# Find how we can fake an echo command that does not interpret backslash.
# In particular, with Autoconf 2.60 or later we add some code to the start
-# of the generated configure script which will find a shell with a builtin
-# printf (which we can use as an echo command).
+# of the generated configure script that will find a shell with a builtin
+# printf (that we can use as an echo command).
m4_defun([_LT_PROG_ECHO_BACKSLASH],
[ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
# Invoke $ECHO with all args, space-separated.
func_echo_all ()
{
- $ECHO "$*"
+ $ECHO "$*"
}
-case "$ECHO" in
+case $ECHO in
printf*) AC_MSG_RESULT([printf]) ;;
print*) AC_MSG_RESULT([print -r]) ;;
*) AC_MSG_RESULT([cat]) ;;
AC_DEFUN([_LT_WITH_SYSROOT],
[AC_MSG_CHECKING([for sysroot])
AC_ARG_WITH([sysroot],
-[ --with-sysroot[=DIR] Search for dependent libraries within DIR
- (or the compiler's sysroot if not specified).],
+[AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
+ [Search for dependent libraries within DIR (or the compiler's sysroot
+ if not specified).])],
[], [with_sysroot=no])
dnl lt_sysroot will always be passed unquoted. We quote it here
dnl in case the user passed a directory name.
lt_sysroot=
-case ${with_sysroot} in #(
+case $with_sysroot in #(
yes)
- if test "$GCC" = yes; then
+ if test yes = "$GCC"; then
lt_sysroot=`$CC --print-sysroot 2>/dev/null`
fi
;; #(
no|'')
;; #(
*)
- AC_MSG_RESULT([${with_sysroot}])
+ AC_MSG_RESULT([$with_sysroot])
AC_MSG_ERROR([The sysroot must be an absolute path.])
;;
esac
AC_MSG_RESULT([${lt_sysroot:-no}])
_LT_DECL([], [lt_sysroot], [0], [The root where to search for ]dnl
-[dependent libraries, and in which our libraries should be installed.])])
+[dependent libraries, and where our libraries should be installed.])])
# _LT_ENABLE_LOCK
# ---------------
[AC_ARG_ENABLE([libtool-lock],
[AS_HELP_STRING([--disable-libtool-lock],
[avoid locking (might break parallel builds)])])
-test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
+test no = "$enable_libtool_lock" || enable_libtool_lock=yes
# Some flags need to be propagated to the compiler or linker for good
# libtool support.
case $host in
ia64-*-hpux*)
- # Find out which ABI we are using.
+ # Find out what ABI is being produced by ac_compile, and set mode
+ # options accordingly.
echo 'int i;' > conftest.$ac_ext
if AC_TRY_EVAL(ac_compile); then
case `/usr/bin/file conftest.$ac_objext` in
*ELF-32*)
- HPUX_IA64_MODE="32"
+ HPUX_IA64_MODE=32
;;
*ELF-64*)
- HPUX_IA64_MODE="64"
+ HPUX_IA64_MODE=64
;;
esac
fi
rm -rf conftest*
;;
*-*-irix6*)
- # Find out which ABI we are using.
+ # Find out what ABI is being produced by ac_compile, and set linker
+ # options accordingly.
echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext
if AC_TRY_EVAL(ac_compile); then
- if test "$lt_cv_prog_gnu_ld" = yes; then
+ if test yes = "$lt_cv_prog_gnu_ld"; then
case `/usr/bin/file conftest.$ac_objext` in
*32-bit*)
LD="${LD-ld} -melf32bsmip"
rm -rf conftest*
;;
-x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
+mips64*-*linux*)
+ # Find out what ABI is being produced by ac_compile, and set linker
+ # options accordingly.
+ echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext
+ if AC_TRY_EVAL(ac_compile); then
+ emul=elf
+ case `/usr/bin/file conftest.$ac_objext` in
+ *32-bit*)
+ emul="${emul}32"
+ ;;
+ *64-bit*)
+ emul="${emul}64"
+ ;;
+ esac
+ case `/usr/bin/file conftest.$ac_objext` in
+ *MSB*)
+ emul="${emul}btsmip"
+ ;;
+ *LSB*)
+ emul="${emul}ltsmip"
+ ;;
+ esac
+ case `/usr/bin/file conftest.$ac_objext` in
+ *N32*)
+ emul="${emul}n32"
+ ;;
+ esac
+ LD="${LD-ld} -m $emul"
+ fi
+ rm -rf conftest*
+ ;;
+
+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
- # Find out which ABI we are using.
+ # Find out what ABI is being produced by ac_compile, and set linker
+ # options accordingly. Note that the listed cases only cover the
+ # situations where additional linker options are needed (such as when
+ # doing 32-bit compilation for a host where ld defaults to 64-bit, or
+ # vice versa); the common cases where no linker options are needed do
+ # not appear in the list.
echo 'int i;' > conftest.$ac_ext
if AC_TRY_EVAL(ac_compile); then
case `/usr/bin/file conftest.o` in
LD="${LD-ld} -m elf_i386_fbsd"
;;
x86_64-*linux*)
- LD="${LD-ld} -m elf_i386"
+ case `/usr/bin/file conftest.o` in
+ *x86-64*)
+ LD="${LD-ld} -m elf32_x86_64"
+ ;;
+ *)
+ LD="${LD-ld} -m elf_i386"
+ ;;
+ esac
;;
- ppc64-*linux*|powerpc64-*linux*)
+ powerpc64le-*linux*)
+ LD="${LD-ld} -m elf32lppclinux"
+ ;;
+ powerpc64-*linux*)
LD="${LD-ld} -m elf32ppclinux"
;;
s390x-*linux*)
x86_64-*linux*)
LD="${LD-ld} -m elf_x86_64"
;;
- ppc*-*linux*|powerpc*-*linux*)
+ powerpcle-*linux*)
+ LD="${LD-ld} -m elf64lppc"
+ ;;
+ powerpc-*linux*)
LD="${LD-ld} -m elf64ppc"
;;
s390*-*linux*|s390*-*tpf*)
*-*-sco3.2v5*)
# On SCO OpenServer 5, we need -belf to get full-featured binaries.
- SAVE_CFLAGS="$CFLAGS"
+ SAVE_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -belf"
AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
[AC_LANG_PUSH(C)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
AC_LANG_POP])
- if test x"$lt_cv_cc_needs_belf" != x"yes"; then
+ if test yes != "$lt_cv_cc_needs_belf"; then
# this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
- CFLAGS="$SAVE_CFLAGS"
+ CFLAGS=$SAVE_CFLAGS
fi
;;
*-*solaris*)
- # Find out which ABI we are using.
+ # Find out what ABI is being produced by ac_compile, and set linker
+ # options accordingly.
echo 'int i;' > conftest.$ac_ext
if AC_TRY_EVAL(ac_compile); then
case `/usr/bin/file conftest.o` in
case $lt_cv_prog_gnu_ld in
yes*)
case $host in
- i?86-*-solaris*)
+ i?86-*-solaris*|x86_64-*-solaris*)
LD="${LD-ld} -m elf_x86_64"
;;
sparc*-*-solaris*)
esac
# GNU ld 2.21 introduced _sol2 emulations. Use them if available.
if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
- LD="${LD-ld}_sol2"
+ LD=${LD-ld}_sol2
fi
;;
*)
;;
esac
-need_locks="$enable_libtool_lock"
+need_locks=$enable_libtool_lock
])# _LT_ENABLE_LOCK
[echo conftest.$ac_objext > conftest.lst
lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&AS_MESSAGE_LOG_FD'
AC_TRY_EVAL([lt_ar_try])
- if test "$ac_status" -eq 0; then
+ if test 0 -eq "$ac_status"; then
# Ensure the archiver fails upon bogus file names.
rm -f conftest.$ac_objext libconftest.a
AC_TRY_EVAL([lt_ar_try])
- if test "$ac_status" -ne 0; then
+ if test 0 -ne "$ac_status"; then
lt_cv_ar_at_file=@
fi
fi
])
])
-if test "x$lt_cv_ar_at_file" = xno; then
+if test no = "$lt_cv_ar_at_file"; then
archiver_list_spec=
else
archiver_list_spec=$lt_cv_ar_at_file
if test -n "$RANLIB"; then
case $host_os in
- openbsd*)
+ bitrig* | openbsd*)
old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
;;
*)
[$2=no
m4_if([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4])
echo "$lt_simple_compile_test_code" > conftest.$ac_ext
- lt_compiler_flag="$3"
+ lt_compiler_flag="$3" ## exclude from sc_useless_quotes_in_assignment
# Insert the option either (1) after the last *FLAGS variable, or
# (2) before a word containing "conftest.", or (3) at the end.
# Note that $ac_compile itself does not contain backslashes and begins
$RM conftest*
])
-if test x"[$]$2" = xyes; then
+if test yes = "[$]$2"; then
m4_if([$5], , :, [$5])
else
m4_if([$6], , :, [$6])
m4_require([_LT_DECL_SED])dnl
AC_CACHE_CHECK([$1], [$2],
[$2=no
- save_LDFLAGS="$LDFLAGS"
+ save_LDFLAGS=$LDFLAGS
LDFLAGS="$LDFLAGS $3"
echo "$lt_simple_link_test_code" > conftest.$ac_ext
if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
fi
fi
$RM -r conftest*
- LDFLAGS="$save_LDFLAGS"
+ LDFLAGS=$save_LDFLAGS
])
-if test x"[$]$2" = xyes; then
+if test yes = "[$]$2"; then
m4_if([$4], , :, [$4])
else
m4_if([$5], , :, [$5])
AC_MSG_CHECKING([the maximum length of command line arguments])
AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
i=0
- teststring="ABCD"
+ teststring=ABCD
case $build_os in
msdosdjgpp*)
lt_cv_sys_max_cmd_len=8192;
;;
- netbsd* | freebsd* | openbsd* | darwin* | dragonfly*)
+ bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*)
# This has been around since 386BSD, at least. Likely further.
if test -x /sbin/sysctl; then
lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
;;
*)
lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
- if test -n "$lt_cv_sys_max_cmd_len"; then
+ if test -n "$lt_cv_sys_max_cmd_len" && \
+ test undefined != "$lt_cv_sys_max_cmd_len"; then
lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
else
# Make teststring a little bigger before we do anything with it.
# a 1K string should be a reasonable start.
- for i in 1 2 3 4 5 6 7 8 ; do
+ for i in 1 2 3 4 5 6 7 8; do
teststring=$teststring$teststring
done
SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
# If test is not a shell built-in, we'll probably end up computing a
# maximum length that is only half of the actual maximum length, but
# we can't tell.
- while { test "X"`env echo "$teststring$teststring" 2>/dev/null` \
+ while { test X`env echo "$teststring$teststring" 2>/dev/null` \
= "X$teststring$teststring"; } >/dev/null 2>&1 &&
- test $i != 17 # 1/2 MB should be enough
+ test 17 != "$i" # 1/2 MB should be enough
do
i=`expr $i + 1`
teststring=$teststring$teststring
;;
esac
])
-if test -n $lt_cv_sys_max_cmd_len ; then
+if test -n "$lt_cv_sys_max_cmd_len"; then
AC_MSG_RESULT($lt_cv_sys_max_cmd_len)
else
AC_MSG_RESULT(none)
# ----------------------------------------------------------------
m4_defun([_LT_TRY_DLOPEN_SELF],
[m4_require([_LT_HEADER_DLFCN])dnl
-if test "$cross_compiling" = yes; then :
+if test yes = "$cross_compiling"; then :
[$4]
else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
# endif
#endif
-/* When -fvisbility=hidden is used, assume the code has been annotated
+/* When -fvisibility=hidden is used, assume the code has been annotated
correspondingly for the symbols needed. */
-#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
int fnord () __attribute__((visibility("default")));
#endif
return status;
}]
_LT_EOF
- if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext} 2>/dev/null; then
+ if AC_TRY_EVAL(ac_link) && test -s "conftest$ac_exeext" 2>/dev/null; then
(./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null
lt_status=$?
case x$lt_status in
# ------------------
AC_DEFUN([LT_SYS_DLOPEN_SELF],
[m4_require([_LT_HEADER_DLFCN])dnl
-if test "x$enable_dlopen" != xyes; then
+if test yes != "$enable_dlopen"; then
enable_dlopen=unknown
enable_dlopen_self=unknown
enable_dlopen_self_static=unknown
case $host_os in
beos*)
- lt_cv_dlopen="load_add_on"
+ lt_cv_dlopen=load_add_on
lt_cv_dlopen_libs=
lt_cv_dlopen_self=yes
;;
mingw* | pw32* | cegcc*)
- lt_cv_dlopen="LoadLibrary"
+ lt_cv_dlopen=LoadLibrary
lt_cv_dlopen_libs=
;;
cygwin*)
- lt_cv_dlopen="dlopen"
+ lt_cv_dlopen=dlopen
lt_cv_dlopen_libs=
;;
darwin*)
- # if libdl is installed we need to link against it
+ # if libdl is installed we need to link against it
AC_CHECK_LIB([dl], [dlopen],
- [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],[
- lt_cv_dlopen="dyld"
+ [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],[
+ lt_cv_dlopen=dyld
lt_cv_dlopen_libs=
lt_cv_dlopen_self=yes
])
;;
+ tpf*)
+ # Don't try to run any link tests for TPF. We know it's impossible
+ # because TPF is a cross-compiler, and we know how we open DSOs.
+ lt_cv_dlopen=dlopen
+ lt_cv_dlopen_libs=
+ lt_cv_dlopen_self=no
+ ;;
+
*)
AC_CHECK_FUNC([shl_load],
- [lt_cv_dlopen="shl_load"],
+ [lt_cv_dlopen=shl_load],
[AC_CHECK_LIB([dld], [shl_load],
- [lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"],
+ [lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld],
[AC_CHECK_FUNC([dlopen],
- [lt_cv_dlopen="dlopen"],
+ [lt_cv_dlopen=dlopen],
[AC_CHECK_LIB([dl], [dlopen],
- [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],
+ [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],
[AC_CHECK_LIB([svld], [dlopen],
- [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"],
+ [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld],
[AC_CHECK_LIB([dld], [dld_link],
- [lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"])
+ [lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld])
])
])
])
;;
esac
- if test "x$lt_cv_dlopen" != xno; then
- enable_dlopen=yes
- else
+ if test no = "$lt_cv_dlopen"; then
enable_dlopen=no
+ else
+ enable_dlopen=yes
fi
case $lt_cv_dlopen in
dlopen)
- save_CPPFLAGS="$CPPFLAGS"
- test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+ save_CPPFLAGS=$CPPFLAGS
+ test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
- save_LDFLAGS="$LDFLAGS"
+ save_LDFLAGS=$LDFLAGS
wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
- save_LIBS="$LIBS"
+ save_LIBS=$LIBS
LIBS="$lt_cv_dlopen_libs $LIBS"
AC_CACHE_CHECK([whether a program can dlopen itself],
lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross)
])
- if test "x$lt_cv_dlopen_self" = xyes; then
+ if test yes = "$lt_cv_dlopen_self"; then
wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
AC_CACHE_CHECK([whether a statically linked program can dlopen itself],
lt_cv_dlopen_self_static, [dnl
])
fi
- CPPFLAGS="$save_CPPFLAGS"
- LDFLAGS="$save_LDFLAGS"
- LIBS="$save_LIBS"
+ CPPFLAGS=$save_CPPFLAGS
+ LDFLAGS=$save_LDFLAGS
+ LIBS=$save_LIBS
;;
esac
m4_require([_LT_FILEUTILS_DEFAULTS])dnl
_LT_COMPILER_C_O([$1])
-hard_links="nottested"
-if test "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" = no && test "$need_locks" != no; then
+hard_links=nottested
+if test no = "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" && test no != "$need_locks"; then
# do not overwrite the value of need_locks provided by the user
AC_MSG_CHECKING([if we can lock with hard links])
hard_links=yes
ln conftest.a conftest.b 2>&5 || hard_links=no
ln conftest.a conftest.b 2>/dev/null && hard_links=no
AC_MSG_RESULT([$hard_links])
- if test "$hard_links" = no; then
- AC_MSG_WARN([`$CC' does not support `-c -o', so `make -j' may be unsafe])
+ if test no = "$hard_links"; then
+ AC_MSG_WARN(['$CC' does not support '-c -o', so 'make -j' may be unsafe])
need_locks=warn
fi
else
_LT_DECL([], [objdir], [0],
[The name of the directory that contains temporary libtool files])dnl
m4_pattern_allow([LT_OBJDIR])dnl
-AC_DEFINE_UNQUOTED(LT_OBJDIR, "$lt_cv_objdir/",
- [Define to the sub-directory in which libtool stores uninstalled libraries.])
+AC_DEFINE_UNQUOTED([LT_OBJDIR], "$lt_cv_objdir/",
+ [Define to the sub-directory where libtool stores uninstalled libraries.])
])# _LT_CHECK_OBJDIR
_LT_TAGVAR(hardcode_action, $1)=
if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" ||
test -n "$_LT_TAGVAR(runpath_var, $1)" ||
- test "X$_LT_TAGVAR(hardcode_automatic, $1)" = "Xyes" ; then
+ test yes = "$_LT_TAGVAR(hardcode_automatic, $1)"; then
# We can hardcode non-existent directories.
- if test "$_LT_TAGVAR(hardcode_direct, $1)" != no &&
+ if test no != "$_LT_TAGVAR(hardcode_direct, $1)" &&
# If the only mechanism to avoid hardcoding is shlibpath_var, we
# have to relink, otherwise we might link with an installed library
# when we should be linking with a yet-to-be-installed one
- ## test "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" != no &&
- test "$_LT_TAGVAR(hardcode_minus_L, $1)" != no; then
+ ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" &&
+ test no != "$_LT_TAGVAR(hardcode_minus_L, $1)"; then
# Linking always hardcodes the temporary library directory.
_LT_TAGVAR(hardcode_action, $1)=relink
else
fi
AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)])
-if test "$_LT_TAGVAR(hardcode_action, $1)" = relink ||
- test "$_LT_TAGVAR(inherit_rpath, $1)" = yes; then
+if test relink = "$_LT_TAGVAR(hardcode_action, $1)" ||
+ test yes = "$_LT_TAGVAR(inherit_rpath, $1)"; then
# Fast installation is not supported
enable_fast_install=no
-elif test "$shlibpath_overrides_runpath" = yes ||
- test "$enable_shared" = no; then
+elif test yes = "$shlibpath_overrides_runpath" ||
+ test no = "$enable_shared"; then
# Fast installation is not necessary
enable_fast_install=needless
fi
# FIXME - insert some real tests, host_os isn't really good enough
case $host_os in
darwin*)
- if test -n "$STRIP" ; then
+ if test -n "$STRIP"; then
striplib="$STRIP -x"
old_striplib="$STRIP -S"
AC_MSG_RESULT([yes])
])# _LT_CMD_STRIPLIB
+# _LT_PREPARE_MUNGE_PATH_LIST
+# ---------------------------
+# Make sure func_munge_path_list() is defined correctly.
+m4_defun([_LT_PREPARE_MUNGE_PATH_LIST],
+[[# func_munge_path_list VARIABLE PATH
+# -----------------------------------
+# VARIABLE is name of variable containing _space_ separated list of
+# directories to be munged by the contents of PATH, which is string
+# having a format:
+# "DIR[:DIR]:"
+# string "DIR[ DIR]" will be prepended to VARIABLE
+# ":DIR[:DIR]"
+# string "DIR[ DIR]" will be appended to VARIABLE
+# "DIRP[:DIRP]::[DIRA:]DIRA"
+# string "DIRP[ DIRP]" will be prepended to VARIABLE and string
+# "DIRA[ DIRA]" will be appended to VARIABLE
+# "DIR[:DIR]"
+# VARIABLE will be replaced by "DIR[ DIR]"
+func_munge_path_list ()
+{
+ case x@S|@2 in
+ x)
+ ;;
+ *:)
+ eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'` \@S|@@S|@1\"
+ ;;
+ x:*)
+ eval @S|@1=\"\@S|@@S|@1 `$ECHO @S|@2 | $SED 's/:/ /g'`\"
+ ;;
+ *::*)
+ eval @S|@1=\"\@S|@@S|@1\ `$ECHO @S|@2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
+ eval @S|@1=\"`$ECHO @S|@2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \@S|@@S|@1\"
+ ;;
+ *)
+ eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'`\"
+ ;;
+ esac
+}
+]])# _LT_PREPARE_PATH_LIST
+
+
# _LT_SYS_DYNAMIC_LINKER([TAG])
# -----------------------------
# PORTME Fill in your ld.so characteristics
m4_require([_LT_DECL_OBJDUMP])dnl
m4_require([_LT_DECL_SED])dnl
m4_require([_LT_CHECK_SHELL_FEATURES])dnl
+m4_require([_LT_PREPARE_MUNGE_PATH_LIST])dnl
AC_MSG_CHECKING([dynamic linker characteristics])
m4_if([$1],
[], [
-if test "$GCC" = yes; then
+if test yes = "$GCC"; then
case $host_os in
- darwin*) lt_awk_arg="/^libraries:/,/LR/" ;;
- *) lt_awk_arg="/^libraries:/" ;;
+ darwin*) lt_awk_arg='/^libraries:/,/LR/' ;;
+ *) lt_awk_arg='/^libraries:/' ;;
esac
case $host_os in
- mingw* | cegcc*) lt_sed_strip_eq="s,=\([[A-Za-z]]:\),\1,g" ;;
- *) lt_sed_strip_eq="s,=/,/,g" ;;
+ mingw* | cegcc*) lt_sed_strip_eq='s|=\([[A-Za-z]]:\)|\1|g' ;;
+ *) lt_sed_strip_eq='s|=/|/|g' ;;
esac
lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
case $lt_search_path_spec in
;;
esac
# Ok, now we have the path, separated by spaces, we can step through it
- # and add multilib dir if necessary.
+ # and add multilib dir if necessary...
lt_tmp_lt_search_path_spec=
- lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+ lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+ # ...but if some path component already ends with the multilib dir we assume
+ # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer).
+ case "$lt_multi_os_dir; $lt_search_path_spec " in
+ "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*)
+ lt_multi_os_dir=
+ ;;
+ esac
for lt_sys_path in $lt_search_path_spec; do
- if test -d "$lt_sys_path/$lt_multi_os_dir"; then
- lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
- else
+ if test -d "$lt_sys_path$lt_multi_os_dir"; then
+ lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir"
+ elif test -n "$lt_multi_os_dir"; then
test -d "$lt_sys_path" && \
lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
fi
done
lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
-BEGIN {RS=" "; FS="/|\n";} {
- lt_foo="";
- lt_count=0;
+BEGIN {RS = " "; FS = "/|\n";} {
+ lt_foo = "";
+ lt_count = 0;
for (lt_i = NF; lt_i > 0; lt_i--) {
if ($lt_i != "" && $lt_i != ".") {
if ($lt_i == "..") {
lt_count++;
} else {
if (lt_count == 0) {
- lt_foo="/" $lt_i lt_foo;
+ lt_foo = "/" $lt_i lt_foo;
} else {
lt_count--;
}
# for these hosts.
case $host_os in
mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
- $SED 's,/\([[A-Za-z]]:\),\1,g'` ;;
+ $SED 's|/\([[A-Za-z]]:\)|\1|g'` ;;
esac
sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
else
library_names_spec=
libname_spec='lib$name'
soname_spec=
-shrext_cmds=".so"
+shrext_cmds=.so
postinstall_cmds=
postuninstall_cmds=
finish_cmds=
# flags to be left without arguments
need_version=unknown
+AC_ARG_VAR([LT_SYS_LIBRARY_PATH],
+[User-defined run-time library search path.])
+
case $host_os in
aix3*)
version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname.a'
shlibpath_var=LIBPATH
# AIX 3 has no versioning support, so we append a major version to the name.
- soname_spec='${libname}${release}${shared_ext}$major'
+ soname_spec='$libname$release$shared_ext$major'
;;
aix[[4-9]]*)
need_lib_prefix=no
need_version=no
hardcode_into_libs=yes
- if test "$host_cpu" = ia64; then
+ if test ia64 = "$host_cpu"; then
# AIX 5 supports IA64
- library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
+ library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext'
shlibpath_var=LD_LIBRARY_PATH
else
# With GCC up to 2.95.x, collect2 would create an import file
# for dependence libraries. The import file would start with
- # the line `#! .'. This would cause the generated library to
- # depend on `.', always an invalid library. This was fixed in
+ # the line '#! .'. This would cause the generated library to
+ # depend on '.', always an invalid library. This was fixed in
# development snapshots of GCC prior to 3.0.
case $host_os in
aix4 | aix4.[[01]] | aix4.[[01]].*)
if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
echo ' yes '
- echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
+ echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then
:
else
can_build_shared=no
fi
;;
esac
- # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
+ # Using Import Files as archive members, it is possible to support
+ # filename-based versioning of shared library archives on AIX. While
+ # this would work for both with and without runtime linking, it will
+ # prevent static linking of such archives. So we do filename-based
+ # shared library versioning with .so extension only, which is used
+ # when both runtime linking and shared linking is enabled.
+ # Unfortunately, runtime linking may impact performance, so we do
+ # not want this to be the default eventually. Also, we use the
+ # versioned .so libs for executables only if there is the -brtl
+ # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only.
+ # To allow for filename-based versioning support, we need to create
+ # libNAME.so.V as an archive file, containing:
+ # *) an Import File, referring to the versioned filename of the
+ # archive as well as the shared archive member, telling the
+ # bitwidth (32 or 64) of that shared object, and providing the
+ # list of exported symbols of that shared object, eventually
+ # decorated with the 'weak' keyword
+ # *) the shared object with the F_LOADONLY flag set, to really avoid
+ # it being seen by the linker.
+ # At run time we better use the real file rather than another symlink,
+ # but for link time we create the symlink libNAME.so -> libNAME.so.V
+
+ case $with_aix_soname,$aix_use_runtimelinking in
+ # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct
# soname into executable. Probably we can add versioning support to
# collect2, so additional links can be useful in future.
- if test "$aix_use_runtimelinking" = yes; then
+ aix,yes) # traditional libtool
+ dynamic_linker='AIX unversionable lib.so'
# If using run time linking (on AIX 4.2 or later) use lib<name>.so
# instead of lib<name>.a to let people know that these are not
# typical AIX shared libraries.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- else
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ ;;
+ aix,no) # traditional AIX only
+ dynamic_linker='AIX lib.a[(]lib.so.V[)]'
# We preserve .a as extension for shared libraries through AIX4.2
# and later when we are not doing run time linking.
- library_names_spec='${libname}${release}.a $libname.a'
- soname_spec='${libname}${release}${shared_ext}$major'
- fi
+ library_names_spec='$libname$release.a $libname.a'
+ soname_spec='$libname$release$shared_ext$major'
+ ;;
+ svr4,*) # full svr4 only
+ dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)]"
+ library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+ # We do not specify a path in Import Files, so LIBPATH fires.
+ shlibpath_overrides_runpath=yes
+ ;;
+ *,yes) # both, prefer svr4
+ dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)], lib.a[(]lib.so.V[)]"
+ library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+ # unpreferred sharedlib libNAME.a needs extra handling
+ postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"'
+ postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"'
+ # We do not specify a path in Import Files, so LIBPATH fires.
+ shlibpath_overrides_runpath=yes
+ ;;
+ *,no) # both, prefer aix
+ dynamic_linker="AIX lib.a[(]lib.so.V[)], lib.so.V[(]$shared_archive_member_spec.o[)]"
+ library_names_spec='$libname$release.a $libname.a'
+ soname_spec='$libname$release$shared_ext$major'
+ # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling
+ postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)'
+ postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"'
+ ;;
+ esac
shlibpath_var=LIBPATH
fi
;;
powerpc)
# Since July 2007 AmigaOS4 officially supports .so libraries.
# When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
;;
m68k)
library_names_spec='$libname.ixlibrary $libname.a'
# Create ${libname}_ixlibrary.a entries in /sys/libs.
- finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+ finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
;;
esac
;;
beos*)
- library_names_spec='${libname}${shared_ext}'
+ library_names_spec='$libname$shared_ext'
dynamic_linker="$host_os ld.so"
shlibpath_var=LIBRARY_PATH
;;
bsdi[[45]]*)
version_type=linux # correct to gnu/linux during the next big refactor
need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
shlibpath_var=LD_LIBRARY_PATH
sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
cygwin* | mingw* | pw32* | cegcc*)
version_type=windows
- shrext_cmds=".dll"
+ shrext_cmds=.dll
need_version=no
need_lib_prefix=no
# gcc
library_names_spec='$libname.dll.a'
# DLL is installed to $(libdir)/../bin by postinstall_cmds
- postinstall_cmds='base_file=`basename \${file}`~
- dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+ postinstall_cmds='base_file=`basename \$file`~
+ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
dldir=$destdir/`dirname \$dlpath`~
test -d \$dldir || mkdir -p \$dldir~
$install_prog $dir/$dlname \$dldir/$dlname~
case $host_os in
cygwin*)
# Cygwin DLLs use 'cyg' prefix rather than 'lib'
- soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
+ soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
m4_if([$1], [],[
sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"])
;;
mingw* | cegcc*)
# MinGW DLLs use traditional 'lib' prefix
- soname_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
+ soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
;;
pw32*)
# pw32 DLLs use 'pw' prefix rather than 'lib'
- library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
+ library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
;;
esac
dynamic_linker='Win32 ld.exe'
*,cl*)
# Native MSVC
libname_spec='$name'
- soname_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
- library_names_spec='${libname}.dll.lib'
+ soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
+ library_names_spec='$libname.dll.lib'
case $build_os in
mingw*)
sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
;;
*)
- sys_lib_search_path_spec="$LIB"
+ sys_lib_search_path_spec=$LIB
if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then
# It is most probably a Windows format PATH.
sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
esac
# DLL is installed to $(libdir)/../bin by postinstall_cmds
- postinstall_cmds='base_file=`basename \${file}`~
- dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+ postinstall_cmds='base_file=`basename \$file`~
+ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
dldir=$destdir/`dirname \$dlpath`~
test -d \$dldir || mkdir -p \$dldir~
$install_prog $dir/$dlname \$dldir/$dlname'
*)
# Assume MSVC wrapper
- library_names_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext} $libname.lib'
+ library_names_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext $libname.lib'
dynamic_linker='Win32 ld.exe'
;;
esac
version_type=darwin
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
- soname_spec='${libname}${release}${major}$shared_ext'
+ library_names_spec='$libname$release$major$shared_ext $libname$shared_ext'
+ soname_spec='$libname$release$major$shared_ext'
shlibpath_overrides_runpath=yes
shlibpath_var=DYLD_LIBRARY_PATH
shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
;;
version_type=freebsd-$objformat
case $version_type in
freebsd-elf*)
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
need_version=no
need_lib_prefix=no
;;
freebsd-*)
- library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
need_version=yes
;;
esac
esac
;;
-gnu*)
- version_type=linux # correct to gnu/linux during the next big refactor
- need_lib_prefix=no
- need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- shlibpath_var=LD_LIBRARY_PATH
- shlibpath_overrides_runpath=no
- hardcode_into_libs=yes
- ;;
-
haiku*)
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
dynamic_linker="$host_os runtime_loader"
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LIBRARY_PATH
- shlibpath_overrides_runpath=yes
+ shlibpath_overrides_runpath=no
sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
hardcode_into_libs=yes
;;
dynamic_linker="$host_os dld.so"
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
- if test "X$HPUX_IA64_MODE" = X32; then
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ if test 32 = "$HPUX_IA64_MODE"; then
sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+ sys_lib_dlsearch_path_spec=/usr/lib/hpux32
else
sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+ sys_lib_dlsearch_path_spec=/usr/lib/hpux64
fi
- sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
;;
hppa*64*)
shrext_cmds='.sl'
dynamic_linker="$host_os dld.sl"
shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
;;
dynamic_linker="$host_os dld.sl"
shlibpath_var=SHLIB_PATH
shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
;;
esac
# HP-UX runs *really* slowly unless shared libraries are mode 555, ...
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=no
case $host_os in
nonstopux*) version_type=nonstopux ;;
*)
- if test "$lt_cv_prog_gnu_ld" = yes; then
+ if test yes = "$lt_cv_prog_gnu_ld"; then
version_type=linux # correct to gnu/linux during the next big refactor
else
version_type=irix
esac
need_lib_prefix=no
need_version=no
- soname_spec='${libname}${release}${shared_ext}$major'
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
+ soname_spec='$libname$release$shared_ext$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext'
case $host_os in
irix5* | nonstopux*)
libsuff= shlibsuff=
esac
shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
shlibpath_overrides_runpath=no
- sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
- sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
+ sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff"
+ sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff"
hardcode_into_libs=yes
;;
dynamic_linker=no
;;
+linux*android*)
+ version_type=none # Android doesn't support versioned libraries.
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext'
+ soname_spec='$libname$release$shared_ext'
+ finish_cmds=
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+
+ # This implies no fast_install, which is unacceptable.
+ # Some rework will be needed to allow for fast_install
+ # before this can be enabled.
+ hardcode_into_libs=yes
+
+ dynamic_linker='Android linker'
+ # Don't embed -rpath directories since the linker doesn't support them.
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+ ;;
+
# This must be glibc/ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=no
# before this can be enabled.
hardcode_into_libs=yes
- # Append ld.so.conf contents to the search path
+ # Ideally, we could use ldconfig to report *all* directores which are
+ # searched for libraries, however this is still not possible. Aside from not
+ # being certain /sbin/ldconfig is available, command
+ # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64,
+ # even though it is searched at run-time. Try to do the best guess by
+ # appending ld.so.conf contents (and includes) to the search path.
if test -f /etc/ld.so.conf; then
lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
need_lib_prefix=no
need_version=no
if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
dynamic_linker='NetBSD (a.out) ld.so'
else
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
dynamic_linker='NetBSD ld.elf_so'
fi
shlibpath_var=LD_LIBRARY_PATH
newsos6)
version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes
;;
version_type=qnx
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=no
hardcode_into_libs=yes
dynamic_linker='ldqnx.so'
;;
-openbsd*)
+openbsd* | bitrig*)
version_type=sunos
- sys_lib_dlsearch_path_spec="/usr/lib"
+ sys_lib_dlsearch_path_spec=/usr/lib
need_lib_prefix=no
- # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
- case $host_os in
- openbsd3.3 | openbsd3.3.*) need_version=yes ;;
- *) need_version=no ;;
- esac
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
- finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
- shlibpath_var=LD_LIBRARY_PATH
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
- case $host_os in
- openbsd2.[[89]] | openbsd2.[[89]].*)
- shlibpath_overrides_runpath=no
- ;;
- *)
- shlibpath_overrides_runpath=yes
- ;;
- esac
+ if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+ need_version=no
else
- shlibpath_overrides_runpath=yes
+ need_version=yes
fi
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+ finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
;;
os2*)
libname_spec='$name'
- shrext_cmds=".dll"
+ version_type=windows
+ shrext_cmds=.dll
+ need_version=no
need_lib_prefix=no
- library_names_spec='$libname${shared_ext} $libname.a'
+ # OS/2 can only load a DLL with a base name of 8 characters or less.
+ soname_spec='`test -n "$os2dllname" && libname="$os2dllname";
+ v=$($ECHO $release$versuffix | tr -d .-);
+ n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _);
+ $ECHO $n$v`$shared_ext'
+ library_names_spec='${libname}_dll.$libext'
dynamic_linker='OS/2 ld.exe'
- shlibpath_var=LIBPATH
+ shlibpath_var=BEGINLIBPATH
+ sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+ sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+ postinstall_cmds='base_file=`basename \$file`~
+ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~
+ dldir=$destdir/`dirname \$dlpath`~
+ test -d \$dldir || mkdir -p \$dldir~
+ $install_prog $dir/$dlname \$dldir/$dlname~
+ chmod a+x \$dldir/$dlname~
+ if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+ eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+ fi'
+ postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~
+ dlpath=$dir/\$dldll~
+ $RM \$dlpath'
;;
osf3* | osf4* | osf5*)
version_type=osf
need_lib_prefix=no
need_version=no
- soname_spec='${libname}${release}${shared_ext}$major'
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+ soname_spec='$libname$release$shared_ext$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
shlibpath_var=LD_LIBRARY_PATH
sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
- sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+ sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
;;
rdos*)
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes
hardcode_into_libs=yes
sunos4*)
version_type=sunos
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes
- if test "$with_gnu_ld" = yes; then
+ if test yes = "$with_gnu_ld"; then
need_lib_prefix=no
fi
need_version=yes
sysv4 | sysv4.3*)
version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
case $host_vendor in
sni)
;;
sysv4*MP*)
- if test -d /usr/nec ;then
+ if test -d /usr/nec; then
version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
- soname_spec='$libname${shared_ext}.$major'
+ library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext'
+ soname_spec='$libname$shared_ext.$major'
shlibpath_var=LD_LIBRARY_PATH
fi
;;
sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
- version_type=freebsd-elf
+ version_type=sco
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=yes
hardcode_into_libs=yes
- if test "$with_gnu_ld" = yes; then
+ if test yes = "$with_gnu_ld"; then
sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
else
sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
version_type=linux # correct to gnu/linux during the next big refactor
need_lib_prefix=no
need_version=no
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=no
hardcode_into_libs=yes
uts4*)
version_type=linux # correct to gnu/linux during the next big refactor
- library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
- soname_spec='${libname}${release}${shared_ext}$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
shlibpath_var=LD_LIBRARY_PATH
;;
;;
esac
AC_MSG_RESULT([$dynamic_linker])
-test "$dynamic_linker" = no && can_build_shared=no
+test no = "$dynamic_linker" && can_build_shared=no
variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
-if test "$GCC" = yes; then
+if test yes = "$GCC"; then
variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
fi
-if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
- sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
+if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then
+ sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec
fi
-if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
- sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
+
+if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then
+ sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec
fi
+# remember unaugmented sys_lib_dlsearch_path content for libtool script decls...
+configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec
+
+# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code
+func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH"
+
+# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool
+configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
+
_LT_DECL([], [variables_saved_for_relink], [1],
[Variables whose values should be saved in libtool wrapper scripts and
restored at link time])
[Whether we should hardcode library paths into libraries])
_LT_DECL([], [sys_lib_search_path_spec], [2],
[Compile-time system search path for libraries])
-_LT_DECL([], [sys_lib_dlsearch_path_spec], [2],
- [Run-time system search path for libraries])
+_LT_DECL([sys_lib_dlsearch_path_spec], [configure_time_dlsearch_path], [2],
+ [Detected run-time system search path for libraries])
+_LT_DECL([], [configure_time_lt_sys_library_path], [2],
+ [Explicit LT_SYS_LIBRARY_PATH set during ./configure time])
])# _LT_SYS_DYNAMIC_LINKER
# _LT_PATH_TOOL_PREFIX(TOOL)
# --------------------------
-# find a file program which can recognize shared library
+# find a file program that can recognize shared library
AC_DEFUN([_LT_PATH_TOOL_PREFIX],
[m4_require([_LT_DECL_EGREP])dnl
AC_MSG_CHECKING([for $1])
AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,
[case $MAGIC_CMD in
[[\\/*] | ?:[\\/]*])
- lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
+ lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
;;
*)
- lt_save_MAGIC_CMD="$MAGIC_CMD"
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+ lt_save_MAGIC_CMD=$MAGIC_CMD
+ lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
dnl $ac_dummy forces splitting on constant user-supplied paths.
dnl POSIX.2 word splitting is done only on the output of word expansions,
dnl not every word. This closes a longstanding sh security hole.
ac_dummy="m4_if([$2], , $PATH, [$2])"
for ac_dir in $ac_dummy; do
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
test -z "$ac_dir" && ac_dir=.
- if test -f $ac_dir/$1; then
- lt_cv_path_MAGIC_CMD="$ac_dir/$1"
+ if test -f "$ac_dir/$1"; then
+ lt_cv_path_MAGIC_CMD=$ac_dir/"$1"
if test -n "$file_magic_test_file"; then
case $deplibs_check_method in
"file_magic "*)
file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
- MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+ MAGIC_CMD=$lt_cv_path_MAGIC_CMD
if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
$EGREP "$file_magic_regex" > /dev/null; then
:
break
fi
done
- IFS="$lt_save_ifs"
- MAGIC_CMD="$lt_save_MAGIC_CMD"
+ IFS=$lt_save_ifs
+ MAGIC_CMD=$lt_save_MAGIC_CMD
;;
esac])
-MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+MAGIC_CMD=$lt_cv_path_MAGIC_CMD
if test -n "$MAGIC_CMD"; then
AC_MSG_RESULT($MAGIC_CMD)
else
# _LT_PATH_MAGIC
# --------------
-# find a file program which can recognize a shared library
+# find a file program that can recognize a shared library
m4_defun([_LT_PATH_MAGIC],
[_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH)
if test -z "$lt_cv_path_MAGIC_CMD"; then
AC_ARG_WITH([gnu-ld],
[AS_HELP_STRING([--with-gnu-ld],
[assume the C compiler uses GNU ld @<:@default=no@:>@])],
- [test "$withval" = no || with_gnu_ld=yes],
+ [test no = "$withval" || with_gnu_ld=yes],
[with_gnu_ld=no])dnl
ac_prog=ld
-if test "$GCC" = yes; then
+if test yes = "$GCC"; then
# Check if gcc -print-prog-name=ld gives a path.
AC_MSG_CHECKING([for ld used by $CC])
case $host in
*-*-mingw*)
- # gcc leaves a trailing carriage return which upsets mingw
+ # gcc leaves a trailing carriage return, which upsets mingw
ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
*)
ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
done
- test -z "$LD" && LD="$ac_prog"
+ test -z "$LD" && LD=$ac_prog
;;
"")
# If it fails, then pretend we aren't using GCC.
with_gnu_ld=unknown
;;
esac
-elif test "$with_gnu_ld" = yes; then
+elif test yes = "$with_gnu_ld"; then
AC_MSG_CHECKING([for GNU ld])
else
AC_MSG_CHECKING([for non-GNU ld])
fi
AC_CACHE_VAL(lt_cv_path_LD,
[if test -z "$LD"; then
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+ lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
for ac_dir in $PATH; do
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
test -z "$ac_dir" && ac_dir=.
if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
- lt_cv_path_LD="$ac_dir/$ac_prog"
+ lt_cv_path_LD=$ac_dir/$ac_prog
# Check to see if the program is GNU ld. I'd rather use --version,
# but apparently some variants of GNU ld only accept -v.
# Break only if it was the GNU/non-GNU ld that we prefer.
case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
*GNU* | *'with BFD'*)
- test "$with_gnu_ld" != no && break
+ test no != "$with_gnu_ld" && break
;;
*)
- test "$with_gnu_ld" != yes && break
+ test yes != "$with_gnu_ld" && break
;;
esac
fi
done
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
else
- lt_cv_path_LD="$LD" # Let the user override the test with a path.
+ lt_cv_path_LD=$LD # Let the user override the test with a path.
fi])
-LD="$lt_cv_path_LD"
+LD=$lt_cv_path_LD
if test -n "$LD"; then
AC_MSG_RESULT($LD)
else
reload_cmds='$LD$reload_flag -o $output$reload_objs'
case $host_os in
cygwin* | mingw* | pw32* | cegcc*)
- if test "$GCC" != yes; then
+ if test yes != "$GCC"; then
reload_cmds=false
fi
;;
darwin*)
- if test "$GCC" = yes; then
- reload_cmds='$LTCC $LTCFLAGS -nostdlib ${wl}-r -o $output$reload_objs'
+ if test yes = "$GCC"; then
+ reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs'
else
reload_cmds='$LD$reload_flag -o $output$reload_objs'
fi
])# _LT_CMD_RELOAD
+# _LT_PATH_DD
+# -----------
+# find a working dd
+m4_defun([_LT_PATH_DD],
+[AC_CACHE_CHECK([for a working dd], [ac_cv_path_lt_DD],
+[printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+: ${lt_DD:=$DD}
+AC_PATH_PROGS_FEATURE_CHECK([lt_DD], [dd],
+[if "$ac_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
+ cmp -s conftest.i conftest.out \
+ && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=:
+fi])
+rm -f conftest.i conftest2.i conftest.out])
+])# _LT_PATH_DD
+
+
+# _LT_CMD_TRUNCATE
+# ----------------
+# find command to truncate a binary pipe
+m4_defun([_LT_CMD_TRUNCATE],
+[m4_require([_LT_PATH_DD])
+AC_CACHE_CHECK([how to truncate binary pipes], [lt_cv_truncate_bin],
+[printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+lt_cv_truncate_bin=
+if "$ac_cv_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
+ cmp -s conftest.i conftest.out \
+ && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1"
+fi
+rm -f conftest.i conftest2.i conftest.out
+test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q"])
+_LT_DECL([lt_truncate_bin], [lt_cv_truncate_bin], [1],
+ [Command to truncate a binary pipe])
+])# _LT_CMD_TRUNCATE
+
+
# _LT_CHECK_MAGIC_METHOD
# ----------------------
# how to check for library dependencies
# Need to set the preceding variable on all platforms that support
# interlibrary dependencies.
# 'none' -- dependencies not supported.
-# `unknown' -- same as none, but documents that we really don't know.
+# 'unknown' -- same as none, but documents that we really don't know.
# 'pass_all' -- all dependencies passed with no checks.
# 'test_compile' -- check by making test program.
# 'file_magic [[regex]]' -- check by looking for files in library path
-# which responds to the $file_magic_cmd with a given extended regex.
-# If you have `file' or equivalent on your system and you're not sure
-# whether `pass_all' will *always* work, you probably want this one.
+# that responds to the $file_magic_cmd with a given extended regex.
+# If you have 'file' or equivalent on your system and you're not sure
+# whether 'pass_all' will *always* work, you probably want this one.
case $host_os in
aix[[4-9]]*)
# Base MSYS/MinGW do not provide the 'file' command needed by
# func_win32_libid shell function, so use a weaker test based on 'objdump',
# unless we find 'file', for example because we are cross-compiling.
- # func_win32_libid assumes BSD nm, so disallow it if using MS dumpbin.
- if ( test "$lt_cv_nm_interface" = "BSD nm" && file / ) >/dev/null 2>&1; then
+ if ( file / ) >/dev/null 2>&1; then
lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
lt_cv_file_magic_cmd='func_win32_libid'
else
fi
;;
-gnu*)
- lt_cv_deplibs_check_method=pass_all
- ;;
-
haiku*)
lt_cv_deplibs_check_method=pass_all
;;
;;
# This must be glibc/ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
lt_cv_deplibs_check_method=pass_all
;;
lt_cv_deplibs_check_method=pass_all
;;
-openbsd*)
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+openbsd* | bitrig*)
+ if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$'
else
lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
tpf*)
lt_cv_deplibs_check_method=pass_all
;;
+os2*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
esac
])
AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM,
[if test -n "$NM"; then
# Let the user override the test.
- lt_cv_path_NM="$NM"
+ lt_cv_path_NM=$NM
else
- lt_nm_to_check="${ac_tool_prefix}nm"
+ lt_nm_to_check=${ac_tool_prefix}nm
if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
lt_nm_to_check="$lt_nm_to_check nm"
fi
for lt_tmp_nm in $lt_nm_to_check; do
- lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+ lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
test -z "$ac_dir" && ac_dir=.
- tmp_nm="$ac_dir/$lt_tmp_nm"
- if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then
+ tmp_nm=$ac_dir/$lt_tmp_nm
+ if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then
# Check to see if the nm accepts a BSD-compat flag.
- # Adding the `sed 1q' prevents false positives on HP-UX, which says:
+ # Adding the 'sed 1q' prevents false positives on HP-UX, which says:
# nm: unknown option "B" ignored
# Tru64's nm complains that /dev/null is an invalid object file
- case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in
- */dev/null* | *'Invalid file or object type'*)
+ # MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty
+ case $build_os in
+ mingw*) lt_bad_file=conftest.nm/nofile ;;
+ *) lt_bad_file=/dev/null ;;
+ esac
+ case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in
+ *$lt_bad_file* | *'Invalid file or object type'*)
lt_cv_path_NM="$tmp_nm -B"
- break
+ break 2
;;
*)
case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
*/dev/null*)
lt_cv_path_NM="$tmp_nm -p"
- break
+ break 2
;;
*)
lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
esac
fi
done
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
done
: ${lt_cv_path_NM=no}
fi])
-if test "$lt_cv_path_NM" != "no"; then
- NM="$lt_cv_path_NM"
+if test no != "$lt_cv_path_NM"; then
+ NM=$lt_cv_path_NM
else
# Didn't find any BSD compatible name lister, look for dumpbin.
if test -n "$DUMPBIN"; then :
# Let the user override the test.
else
AC_CHECK_TOOLS(DUMPBIN, [dumpbin "link -dump"], :)
- case `$DUMPBIN -symbols /dev/null 2>&1 | sed '1q'` in
+ case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in
*COFF*)
- DUMPBIN="$DUMPBIN -symbols"
+ DUMPBIN="$DUMPBIN -symbols -headers"
;;
*)
DUMPBIN=:
esac
fi
AC_SUBST([DUMPBIN])
- if test "$DUMPBIN" != ":"; then
- NM="$DUMPBIN"
+ if test : != "$DUMPBIN"; then
+ NM=$DUMPBIN
fi
fi
test -z "$NM" && NM=nm
case $host_os in
cygwin* | mingw* | pw32* | cegcc*)
- # two different shell functions defined in ltmain.sh
- # decide which to use based on capabilities of $DLLTOOL
+ # two different shell functions defined in ltmain.sh;
+ # decide which one to use based on capabilities of $DLLTOOL
case `$DLLTOOL --help 2>&1` in
*--identify-strict*)
lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
;;
*)
# fallback: assume linklib IS sharedlib
- lt_cv_sharedlib_from_linklib_cmd="$ECHO"
+ lt_cv_sharedlib_from_linklib_cmd=$ECHO
;;
esac
])
lt_cv_path_mainfest_tool=yes
fi
rm -f conftest*])
-if test "x$lt_cv_path_mainfest_tool" != xyes; then
+if test yes != "$lt_cv_path_mainfest_tool"; then
MANIFEST_TOOL=:
fi
_LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl
])# _LT_PATH_MANIFEST_TOOL
+# _LT_DLL_DEF_P([FILE])
+# ---------------------
+# True iff FILE is a Windows DLL '.def' file.
+# Keep in sync with func_dll_def_p in the libtool script
+AC_DEFUN([_LT_DLL_DEF_P],
+[dnl
+ test DEF = "`$SED -n dnl
+ -e '\''s/^[[ ]]*//'\'' dnl Strip leading whitespace
+ -e '\''/^\(;.*\)*$/d'\'' dnl Delete empty lines and comments
+ -e '\''s/^\(EXPORTS\|LIBRARY\)\([[ ]].*\)*$/DEF/p'\'' dnl
+ -e q dnl Only consider the first "real" line
+ $1`" dnl
+])# _LT_DLL_DEF_P
+
+
# LT_LIB_M
# --------
# check for math library
# These system don't have libm, or don't need it
;;
*-ncr-sysv4.3*)
- AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
+ AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM=-lmw)
AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm")
;;
*)
- AC_CHECK_LIB(m, cos, LIBM="-lm")
+ AC_CHECK_LIB(m, cos, LIBM=-lm)
;;
esac
AC_SUBST([LIBM])
_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
-if test "$GCC" = yes; then
+if test yes = "$GCC"; then
case $cc_basename in
nvcc*)
_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;;
symcode='[[ABCDGISTW]]'
;;
hpux*)
- if test "$host_cpu" = ia64; then
+ if test ia64 = "$host_cpu"; then
symcode='[[ABCDEGRST]]'
fi
;;
symcode='[[ABCDGIRSTW]]' ;;
esac
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+ # Gets list of data symbols to import.
+ lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'"
+ # Adjust the below global symbol transforms to fixup imported variables.
+ lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'"
+ lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'"
+ lt_c_name_lib_hook="\
+ -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\
+ -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'"
+else
+ # Disable hooks by default.
+ lt_cv_sys_global_symbol_to_import=
+ lt_cdecl_hook=
+ lt_c_name_hook=
+ lt_c_name_lib_hook=
+fi
+
# Transform an extracted symbol line into a proper C declaration.
# Some systems (esp. on ia64) link data and code symbols differently,
# so use this general approach.
-lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
+lt_cv_sys_global_symbol_to_cdecl="sed -n"\
+$lt_cdecl_hook\
+" -e 's/^T .* \(.*\)$/extern int \1();/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'"
# Transform an extracted symbol line into symbol name and symbol address
-lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\)[[ ]]*$/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/ {\"\2\", (void *) \&\2},/p'"
-lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([[^ ]]*\)[[ ]]*$/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \(lib[[^ ]]*\)$/ {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/ {\"lib\2\", (void *) \&\2},/p'"
+lt_cv_sys_global_symbol_to_c_name_address="sed -n"\
+$lt_c_name_hook\
+" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'"
+
+# Transform an extracted symbol line into symbol name with lib prefix and
+# symbol address.
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\
+$lt_c_name_lib_hook\
+" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'"
# Handle CRLF in mingw tool chain
opt_cr=
# Write the raw and C identifiers.
if test "$lt_cv_nm_interface" = "MS dumpbin"; then
- # Fake it for dumpbin and say T for any non-static function
- # and D for any global variable.
+ # Fake it for dumpbin and say T for any non-static function,
+ # D for any global variable and I for any imported variable.
# Also find C++ and __fastcall symbols from MSVC++,
# which start with @ or ?.
lt_cv_sys_global_symbol_pipe="$AWK ['"\
" {last_section=section; section=\$ 3};"\
" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
+" /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\
+" /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\
+" /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\
" \$ 0!~/External *\|/{next};"\
" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
" {if(hide[section]) next};"\
-" {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\
-" {split(\$ 0, a, /\||\r/); split(a[2], s)};"\
-" s[1]~/^[@?]/{print s[1], s[1]; next};"\
-" s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\
+" {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\
+" {split(\$ 0,a,/\||\r/); split(a[2],s)};"\
+" s[1]~/^[@?]/{print f,s[1],s[1]; next};"\
+" s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\
" ' prfx=^$ac_symprfx]"
else
lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
cat <<_LT_EOF > conftest.$ac_ext
/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */
-#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE)
-/* DATA imports from DLLs on WIN32 con't be const, because runtime
+#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
+/* DATA imports from DLLs on WIN32 can't be const, because runtime
relocations are performed -- see ld's documentation on pseudo-relocs. */
# define LT@&t@_DLSYM_CONST
-#elif defined(__osf__)
+#elif defined __osf__
/* This system does not cope well with relocations in const data. */
# define LT@&t@_DLSYM_CONST
#else
{
{ "@PROGRAM@", (void *) 0 },
_LT_EOF
- $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/ {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
+ $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
cat <<\_LT_EOF >> conftest.$ac_ext
{0, (void *) 0}
};
mv conftest.$ac_objext conftstm.$ac_objext
lt_globsym_save_LIBS=$LIBS
lt_globsym_save_CFLAGS=$CFLAGS
- LIBS="conftstm.$ac_objext"
+ LIBS=conftstm.$ac_objext
CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)"
- if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then
+ if AC_TRY_EVAL(ac_link) && test -s conftest$ac_exeext; then
pipe_works=yes
fi
LIBS=$lt_globsym_save_LIBS
rm -rf conftest* conftst*
# Do not use the global_symbol_pipe unless it works.
- if test "$pipe_works" = yes; then
+ if test yes = "$pipe_works"; then
break
else
lt_cv_sys_global_symbol_pipe=
[Take the output of nm and produce a listing of raw symbols and C names])
_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1],
[Transform the output of nm in a proper C declaration])
+_LT_DECL([global_symbol_to_import], [lt_cv_sys_global_symbol_to_import], [1],
+ [Transform the output of nm into a list of symbols to manually relocate])
_LT_DECL([global_symbol_to_c_name_address],
[lt_cv_sys_global_symbol_to_c_name_address], [1],
[Transform the output of nm in a C name address pair])
_LT_DECL([global_symbol_to_c_name_address_lib_prefix],
[lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1],
[Transform the output of nm in a C name address pair when lib prefix is needed])
+_LT_DECL([nm_interface], [lt_cv_nm_interface], [1],
+ [The name lister interface])
_LT_DECL([], [nm_file_list_spec], [1],
[Specify filename containing input files for $NM])
]) # _LT_CMD_GLOBAL_SYMBOLS
m4_if([$1], [CXX], [
# C++ specific cases for pic, static, wl, etc.
- if test "$GXX" = yes; then
+ if test yes = "$GXX"; then
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
case $host_os in
aix*)
# All AIX code is PIC.
- if test "$host_cpu" = ia64; then
+ if test ia64 = "$host_cpu"; then
# AIX 5 now supports IA64 processor
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
fi
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
;;
amigaos*)
;;
m68k)
# FIXME: we need at least 68020 code to build shared libraries, but
- # adding the `-m68020' flag to GCC prevents building anything better,
- # like `-m68040'.
+ # adding the '-m68020' flag to GCC prevents building anything better,
+ # like '-m68040'.
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
;;
esac
# (--disable-auto-import) libraries
m4_if([$1], [GCJ], [],
[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+ case $host_os in
+ os2*)
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
+ ;;
+ esac
;;
darwin* | rhapsody*)
# PIC is the default on this platform
case $host_os in
aix[[4-9]]*)
# All AIX code is PIC.
- if test "$host_cpu" = ia64; then
+ if test ia64 = "$host_cpu"; then
# AIX 5 now supports IA64 processor
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
else
case $cc_basename in
CC*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
- if test "$host_cpu" != ia64; then
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
+ if test ia64 != "$host_cpu"; then
_LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
fi
;;
aCC*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
case $host_cpu in
hppa*64*|ia64*)
# +Z the default
;;
esac
;;
- linux* | k*bsd*-gnu | kopensolaris*-gnu)
+ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
case $cc_basename in
KCC*)
# KAI C++ Compiler
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
;;
ecpc* )
- # old Intel C++ for x86_64 which still supported -KPIC.
+ # old Intel C++ for x86_64, which still supported -KPIC.
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
fi
],
[
- if test "$GCC" = yes; then
+ if test yes = "$GCC"; then
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
case $host_os in
aix*)
# All AIX code is PIC.
- if test "$host_cpu" = ia64; then
+ if test ia64 = "$host_cpu"; then
# AIX 5 now supports IA64 processor
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
fi
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
;;
amigaos*)
;;
m68k)
# FIXME: we need at least 68020 code to build shared libraries, but
- # adding the `-m68020' flag to GCC prevents building anything better,
- # like `-m68040'.
+ # adding the '-m68020' flag to GCC prevents building anything better,
+ # like '-m68040'.
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
;;
esac
# (--disable-auto-import) libraries
m4_if([$1], [GCJ], [],
[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+ case $host_os in
+ os2*)
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
+ ;;
+ esac
;;
darwin* | rhapsody*)
case $host_os in
aix*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
- if test "$host_cpu" = ia64; then
+ if test ia64 = "$host_cpu"; then
# AIX 5 now supports IA64 processor
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
else
fi
;;
+ darwin* | rhapsody*)
+ # PIC is the default on this platform
+ # Common symbols not allowed in MH_DYLIB files
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
+ case $cc_basename in
+ nagfor*)
+ # NAG Fortran compiler
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ ;;
+ esac
+ ;;
+
mingw* | cygwin* | pw32* | os2* | cegcc*)
# This hack is so that the source file can tell whether it is being
# built for inclusion in a dll (and should export symbols for example).
m4_if([$1], [GCJ], [],
[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+ case $host_os in
+ os2*)
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
+ ;;
+ esac
;;
hpux9* | hpux10* | hpux11*)
;;
esac
# Is there a better lt_prog_compiler_static that works with the bundled CC?
- _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
;;
irix5* | irix6* | nonstopux*)
_LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
;;
- linux* | k*bsd*-gnu | kopensolaris*-gnu)
+ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
case $cc_basename in
- # old Intel for x86_64 which still supported -KPIC.
+ # old Intel for x86_64, which still supported -KPIC.
ecc*)
_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
;;
+ tcc*)
+ # Fabrice Bellard et al's Tiny C Compiler
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+ ;;
pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
# Portland Group compilers (*not* the Pentium gcc compiler,
# which looks to be a dead project)
;;
sysv4*MP*)
- if test -d /usr/nec ;then
+ if test -d /usr/nec; then
_LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic'
_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
fi
fi
])
case $host_os in
- # For platforms which do not support PIC, -DPIC is meaningless:
+ # For platforms that do not support PIC, -DPIC is meaningless:
*djgpp*)
_LT_TAGVAR(lt_prog_compiler_pic, $1)=
;;
case $host_os in
aix[[4-9]]*)
# If we're using GNU nm, then we don't want the "-C" option.
- # -C means demangle to AIX nm, but means don't demangle with GNU nm
- # Also, AIX nm treats weak defined symbols like other global defined
- # symbols, whereas GNU nm marks them as "W".
+ # -C means demangle to GNU nm, but means don't demangle to AIX nm.
+ # Without the "-l" option, or with the "-B" option, AIX nm treats
+ # weak defined symbols like other global defined symbols, whereas
+ # GNU nm marks them as "W".
+ # While the 'weak' keyword is ignored in the Export File, we need
+ # it in the Import File for the 'aix-soname' feature, so we have
+ # to replace the "-B" option with "-P" for AIX nm.
if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+ _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
else
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+ _LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
fi
;;
pw32*)
- _LT_TAGVAR(export_symbols_cmds, $1)="$ltdll_cmds"
+ _LT_TAGVAR(export_symbols_cmds, $1)=$ltdll_cmds
;;
cygwin* | mingw* | cegcc*)
case $cc_basename in
# included in the symbol list
_LT_TAGVAR(include_expsyms, $1)=
# exclude_expsyms can be an extended regexp of symbols to exclude
- # it will be wrapped by ` (' and `)$', so one must not match beginning or
- # end of line. Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
- # as well as any symbol that contains `d'.
+ # it will be wrapped by ' (' and ')$', so one must not match beginning or
+ # end of line. Example: 'a|bc|.*d.*' will exclude the symbols 'a' and 'bc',
+ # as well as any symbol that contains 'd'.
_LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
# Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
# platforms (ab)use it in PIC code, but their linkers get confused if
# FIXME: the MSVC++ port hasn't been tested in a loooong time
# When not using gcc, we currently assume that we are using
# Microsoft Visual C++.
- if test "$GCC" != yes; then
+ if test yes != "$GCC"; then
with_gnu_ld=no
fi
;;
# we just hope/assume this is gcc and not c89 (= MSVC++)
with_gnu_ld=yes
;;
- openbsd*)
+ openbsd* | bitrig*)
with_gnu_ld=no
;;
esac
# On some targets, GNU ld is compatible enough with the native linker
# that we're better off using the native interface for both.
lt_use_gnu_ld_interface=no
- if test "$with_gnu_ld" = yes; then
+ if test yes = "$with_gnu_ld"; then
case $host_os in
aix*)
# The AIX port of GNU ld has always aspired to compatibility
esac
fi
- if test "$lt_use_gnu_ld_interface" = yes; then
+ if test yes = "$lt_use_gnu_ld_interface"; then
# If archive_cmds runs LD, not CC, wlarc should be empty
- wlarc='${wl}'
+ wlarc='$wl'
# Set some defaults for GNU ld with shared library support. These
# are reset later if shared libraries are not supported. Putting them
# here allows them to be overridden if necessary.
runpath_var=LD_RUN_PATH
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
# ancient GNU ld didn't support --whole-archive et. al.
if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
- _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
else
_LT_TAGVAR(whole_archive_flag_spec, $1)=
fi
supports_anon_versioning=no
- case `$LD -v 2>&1` in
+ case `$LD -v | $SED -e 's/([^)]\+)\s\+//' 2>&1` in
*GNU\ gold*) supports_anon_versioning=yes ;;
*\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11
*\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
case $host_os in
aix[[3-9]]*)
# On AIX/PPC, the GNU linker is very broken
- if test "$host_cpu" != ia64; then
+ if test ia64 != "$host_cpu"; then
_LT_TAGVAR(ld_shlibs, $1)=no
cat <<_LT_EOF 1>&2
case $host_cpu in
powerpc)
# see comment about AmigaOS4 .so support
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)=''
;;
m68k)
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
# Joseph Beckenbach <jrb3@best.com> says some releases of gcc
# support --undefined. This deserves some investigation. FIXME
- _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
# _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
# as there is no search path for DLLs.
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-all-symbols'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols'
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
_LT_TAGVAR(always_export_symbols, $1)=no
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
_LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- # If the export-symbols file already is a .def file (1st line
- # is EXPORTS), use it as is; otherwise, prepend...
- _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
- cp $export_symbols $output_objdir/$soname.def;
- else
- echo EXPORTS > $output_objdir/$soname.def;
- cat $export_symbols >> $output_objdir/$soname.def;
- fi~
- $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+ # If the export-symbols file already is a .def file, use it as
+ # is; otherwise, prepend EXPORTS...
+ _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
+ cp $export_symbols $output_objdir/$soname.def;
+ else
+ echo EXPORTS > $output_objdir/$soname.def;
+ cat $export_symbols >> $output_objdir/$soname.def;
+ fi~
+ $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
;;
haiku*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(link_all_deplibs, $1)=yes
;;
+ os2*)
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes
+ _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+ shrext_cmds=.dll
+ _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ prefix_cmds="$SED"~
+ if test EXPORTS = "`$SED 1q $export_symbols`"; then
+ prefix_cmds="$prefix_cmds -e 1d";
+ fi~
+ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+ _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+ ;;
+
interix[[3-9]]*)
_LT_TAGVAR(hardcode_direct, $1)=no
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
# Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
# Instead, shared libraries are loaded at an image base (0x10000000 by
# default) and relocated if they conflict, which is a slow very memory
# consuming and fragmenting process. To avoid this, we pick a random,
# 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
# time. Moving up from 0x10000000 also allows more sbrk(2) space.
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
;;
gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
tmp_diet=no
- if test "$host_os" = linux-dietlibc; then
+ if test linux-dietlibc = "$host_os"; then
case $cc_basename in
diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn)
esac
fi
if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
- && test "$tmp_diet" = no
+ && test no = "$tmp_diet"
then
tmp_addflag=' $pic_flag'
tmp_sharedflag='-shared'
case $cc_basename,$host_cpu in
pgcc*) # Portland Group C compiler
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
tmp_addflag=' $pic_flag'
;;
pgf77* | pgf90* | pgf95* | pgfortran*)
# Portland Group f77 and f90 compilers
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
tmp_addflag=' $pic_flag -Mnomain' ;;
ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64
tmp_addflag=' -i_dynamic' ;;
lf95*) # Lahey Fortran 8.1
_LT_TAGVAR(whole_archive_flag_spec, $1)=
tmp_sharedflag='--shared' ;;
+ nagfor*) # NAGFOR 5.3
+ tmp_sharedflag='-Wl,-shared' ;;
xl[[cC]]* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL C 8.0 on PPC (deal with xlf below)
tmp_sharedflag='-qmkshrobj'
tmp_addflag= ;;
nvcc*) # Cuda Compiler Driver 2.2
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
_LT_TAGVAR(compiler_needs_object, $1)=yes
;;
esac
case `$CC -V 2>&1 | sed 5q` in
*Sun\ C*) # Sun C 5.9
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
_LT_TAGVAR(compiler_needs_object, $1)=yes
tmp_sharedflag='-G' ;;
*Sun\ F*) # Sun Fortran 8.3
tmp_sharedflag='-G' ;;
esac
- _LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
- if test "x$supports_anon_versioning" = xyes; then
+ if test yes = "$supports_anon_versioning"; then
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+ cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+ echo "local: *; };" >> $output_objdir/$libname.ver~
+ $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
fi
case $cc_basename in
+ tcc*)
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='-rdynamic'
+ ;;
xlf* | bgf* | bgxlf* | mpixlf*)
# IBM XL Fortran 10.1 on PPC cannot create shared libs itself
_LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
_LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
- if test "x$supports_anon_versioning" = xyes; then
+ if test yes = "$supports_anon_versioning"; then
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
+ cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+ echo "local: *; };" >> $output_objdir/$libname.ver~
+ $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
fi
;;
esac
_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
wlarc=
else
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
fi
;;
_LT_EOF
elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
_LT_TAGVAR(ld_shlibs, $1)=no
cat <<_LT_EOF 1>&2
-*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not
+*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot
*** reliably create shared libraries on SCO systems. Therefore, libtool
*** is disabling shared libraries support. We urge you to upgrade GNU
*** binutils to release 2.16.91.0.3 or newer. Another option is to modify
# DT_RUNPATH tag from executables and libraries. But doing so
# requires that you compile everything twice, which is a pain.
if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
*)
if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
;;
esac
- if test "$_LT_TAGVAR(ld_shlibs, $1)" = no; then
+ if test no = "$_LT_TAGVAR(ld_shlibs, $1)"; then
runpath_var=
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
_LT_TAGVAR(export_dynamic_flag_spec, $1)=
# Note: this linker hardcodes the directories in LIBPATH if there
# are no directories specified by -L.
_LT_TAGVAR(hardcode_minus_L, $1)=yes
- if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then
+ if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then
# Neither direct hardcoding nor static linking is supported with a
# broken collect2.
_LT_TAGVAR(hardcode_direct, $1)=unsupported
;;
aix[[4-9]]*)
- if test "$host_cpu" = ia64; then
+ if test ia64 = "$host_cpu"; then
# On IA64, the linker does run time linking by default, so we don't
# have to do anything special.
aix_use_runtimelinking=no
exp_sym_flag='-Bexport'
- no_entry_flag=""
+ no_entry_flag=
else
# If we're using GNU nm, then we don't want the "-C" option.
- # -C means demangle to AIX nm, but means don't demangle with GNU nm
- # Also, AIX nm treats weak defined symbols like other global
- # defined symbols, whereas GNU nm marks them as "W".
+ # -C means demangle to GNU nm, but means don't demangle to AIX nm.
+ # Without the "-l" option, or with the "-B" option, AIX nm treats
+ # weak defined symbols like other global defined symbols, whereas
+ # GNU nm marks them as "W".
+ # While the 'weak' keyword is ignored in the Export File, we need
+ # it in the Import File for the 'aix-soname' feature, so we have
+ # to replace the "-B" option with "-P" for AIX nm.
if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+ _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
else
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+ _LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
fi
aix_use_runtimelinking=no
# Test if we are trying to use run time linking or normal
# AIX style linking. If -brtl is somewhere in LDFLAGS, we
- # need to do runtime linking.
+ # have runtime linking enabled, and use it for executables.
+ # For shared libraries, we enable/disable runtime linking
+ # depending on the kind of the shared library created -
+ # when "with_aix_soname,aix_use_runtimelinking" is:
+ # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables
+ # "aix,yes" lib.so shared, rtl:yes, for executables
+ # lib.a static archive
+ # "both,no" lib.so.V(shr.o) shared, rtl:yes
+ # lib.a(lib.so.V) shared, rtl:no, for executables
+ # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
+ # lib.a(lib.so.V) shared, rtl:no
+ # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables
+ # lib.a static archive
case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
for ld_flag in $LDFLAGS; do
- if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
+ if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then
aix_use_runtimelinking=yes
break
fi
done
+ if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
+ # With aix-soname=svr4, we create the lib.so.V shared archives only,
+ # so we don't have lib.a shared libs to link our executables.
+ # We have to force runtime linking in this case.
+ aix_use_runtimelinking=yes
+ LDFLAGS="$LDFLAGS -Wl,-brtl"
+ fi
;;
esac
_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
_LT_TAGVAR(hardcode_libdir_separator, $1)=':'
_LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(file_list_spec, $1)='${wl}-f,'
+ _LT_TAGVAR(file_list_spec, $1)='$wl-f,'
+ case $with_aix_soname,$aix_use_runtimelinking in
+ aix,*) ;; # traditional, no import file
+ svr4,* | *,yes) # use import file
+ # The Import File defines what to hardcode.
+ _LT_TAGVAR(hardcode_direct, $1)=no
+ _LT_TAGVAR(hardcode_direct_absolute, $1)=no
+ ;;
+ esac
- if test "$GCC" = yes; then
+ if test yes = "$GCC"; then
case $host_os in aix4.[[012]]|aix4.[[012]].*)
# We only want to do this on AIX 4.2 and lower, the check
# below for broken collect2 doesn't work under 4.3+
- collect2name=`${CC} -print-prog-name=collect2`
+ collect2name=`$CC -print-prog-name=collect2`
if test -f "$collect2name" &&
strings "$collect2name" | $GREP resolve_lib_name >/dev/null
then
;;
esac
shared_flag='-shared'
- if test "$aix_use_runtimelinking" = yes; then
- shared_flag="$shared_flag "'${wl}-G'
+ if test yes = "$aix_use_runtimelinking"; then
+ shared_flag="$shared_flag "'$wl-G'
fi
+ # Need to ensure runtime linking is disabled for the traditional
+ # shared library, or the linker may eventually find shared libraries
+ # /with/ Import File - we do not want to mix them.
+ shared_flag_aix='-shared'
+ shared_flag_svr4='-shared $wl-G'
else
# not using gcc
- if test "$host_cpu" = ia64; then
+ if test ia64 = "$host_cpu"; then
# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
# chokes on -Wl,-G. The following line is correct:
shared_flag='-G'
else
- if test "$aix_use_runtimelinking" = yes; then
- shared_flag='${wl}-G'
+ if test yes = "$aix_use_runtimelinking"; then
+ shared_flag='$wl-G'
else
- shared_flag='${wl}-bM:SRE'
+ shared_flag='$wl-bM:SRE'
fi
+ shared_flag_aix='$wl-bM:SRE'
+ shared_flag_svr4='$wl-G'
fi
fi
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-bexpall'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall'
# It seems that -bexpall does not export symbols beginning with
# underscore (_), so it is better to generate a list of symbols to export.
_LT_TAGVAR(always_export_symbols, $1)=yes
- if test "$aix_use_runtimelinking" = yes; then
+ if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
# Warning - without using the other runtime loading flags (-brtl),
# -berok will link without error, but may produce a broken library.
_LT_TAGVAR(allow_undefined_flag, $1)='-berok'
# Determine the default libpath from the value encoded in an
# empty executable.
_LT_SYS_MODULE_PATH_AIX([$1])
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
else
- if test "$host_cpu" = ia64; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib'
+ if test ia64 = "$host_cpu"; then
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib'
_LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
- _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
+ _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
else
# Determine the default libpath from the value encoded in an
# empty executable.
_LT_SYS_MODULE_PATH_AIX([$1])
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
# Warning - without using the other run time loading flags,
# -berok will link without error, but may produce a broken library.
- _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok'
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok'
- if test "$with_gnu_ld" = yes; then
+ _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok'
+ _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok'
+ if test yes = "$with_gnu_ld"; then
# We only use this code for GNU lds that support --whole-archive.
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
else
# Exported symbols can be pulled into shared objects from archives
_LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
fi
_LT_TAGVAR(archive_cmds_need_lc, $1)=yes
- # This is similar to how AIX traditionally builds its shared libraries.
- _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
+ # -brtl affects multiple linker settings, -berok does not and is overridden later
+ compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`'
+ if test svr4 != "$with_aix_soname"; then
+ # This is similar to how AIX traditionally builds its shared libraries.
+ _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
+ fi
+ if test aix != "$with_aix_soname"; then
+ _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
+ else
+ # used by -dlpreopen to get the symbols
+ _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV $output_objdir/$realname.d/$soname $output_objdir'
+ fi
+ _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d'
fi
fi
;;
case $host_cpu in
powerpc)
# see comment about AmigaOS4 .so support
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)=''
;;
m68k)
# Tell ltmain to make .lib files, not .a files.
libext=lib
# Tell ltmain to make .dll files, not .so files.
- shrext_cmds=".dll"
+ shrext_cmds=.dll
# FIXME: Setting linknames here is a bad hack.
- _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames='
- _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
- sed -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp;
- else
- sed -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp;
- fi~
- $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
- linknames='
+ _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
+ _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
+ cp "$export_symbols" "$output_objdir/$soname.def";
+ echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
+ else
+ $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
+ fi~
+ $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+ linknames='
# The linker will not automatically build a static lib if we build a DLL.
# _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
# Don't use ranlib
_LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
_LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~
- lt_tool_outputfile="@TOOL_OUTPUT@"~
- case $lt_outputfile in
- *.exe|*.EXE) ;;
- *)
- lt_outputfile="$lt_outputfile.exe"
- lt_tool_outputfile="$lt_tool_outputfile.exe"
- ;;
- esac~
- if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then
- $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
- $RM "$lt_outputfile.manifest";
- fi'
+ lt_tool_outputfile="@TOOL_OUTPUT@"~
+ case $lt_outputfile in
+ *.exe|*.EXE) ;;
+ *)
+ lt_outputfile=$lt_outputfile.exe
+ lt_tool_outputfile=$lt_tool_outputfile.exe
+ ;;
+ esac~
+ if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
+ $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+ $RM "$lt_outputfile.manifest";
+ fi'
;;
*)
# Assume MSVC wrapper
# Tell ltmain to make .lib files, not .a files.
libext=lib
# Tell ltmain to make .dll files, not .so files.
- shrext_cmds=".dll"
+ shrext_cmds=.dll
# FIXME: Setting linknames here is a bad hack.
_LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
# The linker will automatically build a .lib file if we build a DLL.
;;
hpux9*)
- if test "$GCC" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+ if test yes = "$GCC"; then
+ _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
else
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
fi
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
_LT_TAGVAR(hardcode_direct, $1)=yes
# hardcode_minus_L: Not really in the search PATH,
# but as the default location of the library.
_LT_TAGVAR(hardcode_minus_L, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
;;
hpux10*)
- if test "$GCC" = yes && test "$with_gnu_ld" = no; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+ if test yes,no = "$GCC,$with_gnu_ld"; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
else
_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
fi
- if test "$with_gnu_ld" = no; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+ if test no = "$with_gnu_ld"; then
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
# hardcode_minus_L: Not really in the search PATH,
# but as the default location of the library.
_LT_TAGVAR(hardcode_minus_L, $1)=yes
;;
hpux11*)
- if test "$GCC" = yes && test "$with_gnu_ld" = no; then
+ if test yes,no = "$GCC,$with_gnu_ld"; then
case $host_cpu in
hppa*64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
;;
ia64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
;;
*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
;;
esac
else
case $host_cpu in
hppa*64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
;;
ia64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
;;
*)
m4_if($1, [], [
# (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
_LT_LINKER_OPTION([if $CC understands -b],
_LT_TAGVAR(lt_cv_prog_compiler__b, $1), [-b],
- [_LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'],
+ [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'],
[_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'])],
- [_LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'])
+ [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'])
;;
esac
fi
- if test "$with_gnu_ld" = no; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+ if test no = "$with_gnu_ld"; then
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
case $host_cpu in
*)
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
# hardcode_minus_L: Not really in the search PATH,
# but as the default location of the library.
;;
irix5* | irix6* | nonstopux*)
- if test "$GCC" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+ if test yes = "$GCC"; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
# Try to use the -exported_symbol ld option, if it does not
# work, assume that -exports_file does not work either and
# implicitly export all symbols.
# This should be the same for all languages, so no per-tag cache variable.
AC_CACHE_CHECK([whether the $host_os linker accepts -exported_symbol],
[lt_cv_irix_exported_symbol],
- [save_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null"
+ [save_LDFLAGS=$LDFLAGS
+ LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null"
AC_LINK_IFELSE(
[AC_LANG_SOURCE(
[AC_LANG_CASE([C], [[int foo (void) { return 0; }]],
end]])])],
[lt_cv_irix_exported_symbol=yes],
[lt_cv_irix_exported_symbol=no])
- LDFLAGS="$save_LDFLAGS"])
- if test "$lt_cv_irix_exported_symbol" = yes; then
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib'
+ LDFLAGS=$save_LDFLAGS])
+ if test yes = "$lt_cv_irix_exported_symbol"; then
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib'
fi
else
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib'
fi
_LT_TAGVAR(archive_cmds_need_lc, $1)='no'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
_LT_TAGVAR(inherit_rpath, $1)=yes
_LT_TAGVAR(link_all_deplibs, $1)=yes
;;
+ linux*)
+ case $cc_basename in
+ tcc*)
+ # Fabrice Bellard et al's Tiny C Compiler
+ _LT_TAGVAR(ld_shlibs, $1)=yes
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ esac
+ ;;
+
netbsd*)
if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out
newsos6)
_LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
_LT_TAGVAR(hardcode_direct, $1)=yes
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
;;
*nto* | *qnx*)
;;
- openbsd*)
+ openbsd* | bitrig*)
if test -f /usr/libexec/ld.so; then
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
- if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+ if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
else
- case $host_os in
- openbsd[[01]].* | openbsd2.[[0-7]] | openbsd2.[[0-7]].*)
- _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- ;;
- *)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- ;;
- esac
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
fi
else
_LT_TAGVAR(ld_shlibs, $1)=no
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
_LT_TAGVAR(hardcode_minus_L, $1)=yes
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
- _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~echo DATA >> $output_objdir/$libname.def~echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
- _LT_TAGVAR(old_archive_from_new_cmds, $1)='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
+ shrext_cmds=.dll
+ _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ prefix_cmds="$SED"~
+ if test EXPORTS = "`$SED 1q $export_symbols`"; then
+ prefix_cmds="$prefix_cmds -e 1d";
+ fi~
+ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+ _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
;;
osf3*)
- if test "$GCC" = yes; then
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+ if test yes = "$GCC"; then
+ _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
else
_LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
fi
_LT_TAGVAR(archive_cmds_need_lc, $1)='no'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
;;
osf4* | osf5*) # as osf3* with the addition of -msym flag
- if test "$GCC" = yes; then
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $pic_flag $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+ if test yes = "$GCC"; then
+ _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
else
_LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
- $CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp'
+ $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp'
# Both c and cxx compiler support -rpath directly
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
solaris*)
_LT_TAGVAR(no_undefined_flag, $1)=' -z defs'
- if test "$GCC" = yes; then
- wlarc='${wl}'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+ if test yes = "$GCC"; then
+ wlarc='$wl'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+ $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
else
case `$CC -V 2>&1` in
*"Compilers 5.0"*)
wlarc=''
- _LT_TAGVAR(archive_cmds, $1)='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
+ $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
;;
*)
- wlarc='${wl}'
- _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags'
+ wlarc='$wl'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+ $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
;;
esac
fi
solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
*)
# The compiler driver will combine and reorder linker options,
- # but understands `-z linker_flag'. GCC discards it without `$wl',
+ # but understands '-z linker_flag'. GCC discards it without '$wl',
# but is careful enough not to reorder.
# Supported since Solaris 2.6 (maybe 2.5.1?)
- if test "$GCC" = yes; then
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
+ if test yes = "$GCC"; then
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
else
_LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
fi
;;
sunos4*)
- if test "x$host_vendor" = xsequent; then
+ if test sequent = "$host_vendor"; then
# Use $CC to link under sequent, because it throws in some extra .o
# files that make .init and .fini sections work.
- _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags'
else
_LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
fi
;;
sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
- _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
+ _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
runpath_var='LD_RUN_PATH'
- if test "$GCC" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ if test yes = "$GCC"; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
else
- _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
fi
;;
sysv5* | sco3.2v5* | sco5v6*)
- # Note: We can NOT use -z defs as we might desire, because we do not
+ # Note: We CANNOT use -z defs as we might desire, because we do not
# link with -lc, and that would cause any symbols used from libc to
# always be unresolved, which means just about no library would
# ever link correctly. If we're not using GNU ld we use -z text
# though, which does catch some bad symbols but isn't as heavy-handed
# as -z defs.
- _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
- _LT_TAGVAR(allow_undefined_flag, $1)='${wl}-z,nodefs'
+ _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
+ _LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs'
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R,$libdir'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=':'
_LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport'
runpath_var='LD_RUN_PATH'
- if test "$GCC" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ if test yes = "$GCC"; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
else
- _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
fi
;;
;;
esac
- if test x$host_vendor = xsni; then
+ if test sni = "$host_vendor"; then
case $host in
sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Blargedynsym'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Blargedynsym'
;;
esac
fi
fi
])
AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
-test "$_LT_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no
+test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no
_LT_TAGVAR(with_gnu_ld, $1)=$with_gnu_ld
# Assume -lc should be added
_LT_TAGVAR(archive_cmds_need_lc, $1)=yes
- if test "$enable_shared" = yes && test "$GCC" = yes; then
+ if test yes,yes = "$GCC,$enable_shared"; then
case $_LT_TAGVAR(archive_cmds, $1) in
*'~'*)
# FIXME: we may have to deal with multi-command sequences.
_LT_TAGDECL([], [hardcode_libdir_separator], [1],
[Whether we need a single "-rpath" flag with a separated argument])
_LT_TAGDECL([], [hardcode_direct], [0],
- [Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
+ [Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
DIR into the resulting binary])
_LT_TAGDECL([], [hardcode_direct_absolute], [0],
- [Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
+ [Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
DIR into the resulting binary and the resulting library dependency is
- "absolute", i.e impossible to change by setting ${shlibpath_var} if the
+ "absolute", i.e impossible to change by setting $shlibpath_var if the
library is relocated])
_LT_TAGDECL([], [hardcode_minus_L], [0],
[Set to "yes" if using the -LDIR flag during linking hardcodes DIR
# ------------------------
# Ensure that the configuration variables for a C compiler are suitably
# defined. These variables are subsequently used by _LT_CONFIG to write
-# the compiler configuration to `libtool'.
+# the compiler configuration to 'libtool'.
m4_defun([_LT_LANG_C_CONFIG],
[m4_require([_LT_DECL_EGREP])dnl
-lt_save_CC="$CC"
+lt_save_CC=$CC
AC_LANG_PUSH(C)
# Source file extension for C test sources.
LT_SYS_DLOPEN_SELF
_LT_CMD_STRIPLIB
- # Report which library types will actually be built
+ # Report what library types will actually be built
AC_MSG_CHECKING([if libtool supports shared libraries])
AC_MSG_RESULT([$can_build_shared])
AC_MSG_CHECKING([whether to build shared libraries])
- test "$can_build_shared" = "no" && enable_shared=no
+ test no = "$can_build_shared" && enable_shared=no
# On AIX, shared libraries and static libraries use the same namespace, and
# are all built from PIC.
case $host_os in
aix3*)
- test "$enable_shared" = yes && enable_static=no
+ test yes = "$enable_shared" && enable_static=no
if test -n "$RANLIB"; then
archive_cmds="$archive_cmds~\$RANLIB \$lib"
postinstall_cmds='$RANLIB $lib'
;;
aix[[4-9]]*)
- if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
- test "$enable_shared" = yes && enable_static=no
+ if test ia64 != "$host_cpu"; then
+ case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+ yes,aix,yes) ;; # shared object as lib.so file only
+ yes,svr4,*) ;; # shared object as lib.so archive member only
+ yes,*) enable_static=no ;; # shared object in lib.a archive as well
+ esac
fi
;;
esac
AC_MSG_CHECKING([whether to build static libraries])
# Make sure either enable_shared or enable_static is yes.
- test "$enable_shared" = yes || enable_static=yes
+ test yes = "$enable_shared" || enable_static=yes
AC_MSG_RESULT([$enable_static])
_LT_CONFIG($1)
fi
AC_LANG_POP
-CC="$lt_save_CC"
+CC=$lt_save_CC
])# _LT_LANG_C_CONFIG
# --------------------------
# Ensure that the configuration variables for a C++ compiler are suitably
# defined. These variables are subsequently used by _LT_CONFIG to write
-# the compiler configuration to `libtool'.
+# the compiler configuration to 'libtool'.
m4_defun([_LT_LANG_CXX_CONFIG],
[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
m4_require([_LT_DECL_EGREP])dnl
m4_require([_LT_PATH_MANIFEST_TOOL])dnl
-if test -n "$CXX" && ( test "X$CXX" != "Xno" &&
- ( (test "X$CXX" = "Xg++" && `g++ -v >/dev/null 2>&1` ) ||
- (test "X$CXX" != "Xg++"))) ; then
+if test -n "$CXX" && ( test no != "$CXX" &&
+ ( (test g++ = "$CXX" && `g++ -v >/dev/null 2>&1` ) ||
+ (test g++ != "$CXX"))); then
AC_PROG_CXXCPP
else
_lt_caught_CXX_error=yes
# the CXX compiler isn't working. Some variables (like enable_shared)
# are currently assumed to apply to all compilers on this platform,
# and will be corrupted by setting them based on a non-working compiler.
-if test "$_lt_caught_CXX_error" != yes; then
+if test yes != "$_lt_caught_CXX_error"; then
# Code to be used in simple compile tests
lt_simple_compile_test_code="int some_variable = 0;"
if test -n "$compiler"; then
# We don't want -fno-exception when compiling C++ code, so set the
# no_builtin_flag separately
- if test "$GXX" = yes; then
+ if test yes = "$GXX"; then
_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin'
else
_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
fi
- if test "$GXX" = yes; then
+ if test yes = "$GXX"; then
# Set up default GNU C++ configuration
LT_PATH_LD
# Check if GNU C++ uses GNU ld as the underlying linker, since the
# archiving commands below assume that GNU ld is being used.
- if test "$with_gnu_ld" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+ if test yes = "$with_gnu_ld"; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
# If archive_cmds runs LD, not CC, wlarc should be empty
# XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
# investigate it a little bit more. (MM)
- wlarc='${wl}'
+ wlarc='$wl'
# ancient GNU ld didn't support --whole-archive et. al.
if eval "`$CC -print-prog-name=ld` --help 2>&1" |
$GREP 'no-whole-archive' > /dev/null; then
- _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
else
_LT_TAGVAR(whole_archive_flag_spec, $1)=
fi
_LT_TAGVAR(ld_shlibs, $1)=no
;;
aix[[4-9]]*)
- if test "$host_cpu" = ia64; then
+ if test ia64 = "$host_cpu"; then
# On IA64, the linker does run time linking by default, so we don't
# have to do anything special.
aix_use_runtimelinking=no
exp_sym_flag='-Bexport'
- no_entry_flag=""
+ no_entry_flag=
else
aix_use_runtimelinking=no
# Test if we are trying to use run time linking or normal
# AIX style linking. If -brtl is somewhere in LDFLAGS, we
- # need to do runtime linking.
+ # have runtime linking enabled, and use it for executables.
+ # For shared libraries, we enable/disable runtime linking
+ # depending on the kind of the shared library created -
+ # when "with_aix_soname,aix_use_runtimelinking" is:
+ # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables
+ # "aix,yes" lib.so shared, rtl:yes, for executables
+ # lib.a static archive
+ # "both,no" lib.so.V(shr.o) shared, rtl:yes
+ # lib.a(lib.so.V) shared, rtl:no, for executables
+ # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
+ # lib.a(lib.so.V) shared, rtl:no
+ # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables
+ # lib.a static archive
case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
for ld_flag in $LDFLAGS; do
case $ld_flag in
;;
esac
done
+ if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
+ # With aix-soname=svr4, we create the lib.so.V shared archives only,
+ # so we don't have lib.a shared libs to link our executables.
+ # We have to force runtime linking in this case.
+ aix_use_runtimelinking=yes
+ LDFLAGS="$LDFLAGS -Wl,-brtl"
+ fi
;;
esac
_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
_LT_TAGVAR(hardcode_libdir_separator, $1)=':'
_LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(file_list_spec, $1)='${wl}-f,'
+ _LT_TAGVAR(file_list_spec, $1)='$wl-f,'
+ case $with_aix_soname,$aix_use_runtimelinking in
+ aix,*) ;; # no import file
+ svr4,* | *,yes) # use import file
+ # The Import File defines what to hardcode.
+ _LT_TAGVAR(hardcode_direct, $1)=no
+ _LT_TAGVAR(hardcode_direct_absolute, $1)=no
+ ;;
+ esac
- if test "$GXX" = yes; then
+ if test yes = "$GXX"; then
case $host_os in aix4.[[012]]|aix4.[[012]].*)
# We only want to do this on AIX 4.2 and lower, the check
# below for broken collect2 doesn't work under 4.3+
- collect2name=`${CC} -print-prog-name=collect2`
+ collect2name=`$CC -print-prog-name=collect2`
if test -f "$collect2name" &&
strings "$collect2name" | $GREP resolve_lib_name >/dev/null
then
fi
esac
shared_flag='-shared'
- if test "$aix_use_runtimelinking" = yes; then
- shared_flag="$shared_flag "'${wl}-G'
+ if test yes = "$aix_use_runtimelinking"; then
+ shared_flag=$shared_flag' $wl-G'
fi
+ # Need to ensure runtime linking is disabled for the traditional
+ # shared library, or the linker may eventually find shared libraries
+ # /with/ Import File - we do not want to mix them.
+ shared_flag_aix='-shared'
+ shared_flag_svr4='-shared $wl-G'
else
# not using gcc
- if test "$host_cpu" = ia64; then
+ if test ia64 = "$host_cpu"; then
# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
# chokes on -Wl,-G. The following line is correct:
shared_flag='-G'
else
- if test "$aix_use_runtimelinking" = yes; then
- shared_flag='${wl}-G'
+ if test yes = "$aix_use_runtimelinking"; then
+ shared_flag='$wl-G'
else
- shared_flag='${wl}-bM:SRE'
+ shared_flag='$wl-bM:SRE'
fi
+ shared_flag_aix='$wl-bM:SRE'
+ shared_flag_svr4='$wl-G'
fi
fi
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-bexpall'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall'
# It seems that -bexpall does not export symbols beginning with
# underscore (_), so it is better to generate a list of symbols to
# export.
_LT_TAGVAR(always_export_symbols, $1)=yes
- if test "$aix_use_runtimelinking" = yes; then
+ if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
# Warning - without using the other runtime loading flags (-brtl),
# -berok will link without error, but may produce a broken library.
- _LT_TAGVAR(allow_undefined_flag, $1)='-berok'
+ # The "-G" linker flag allows undefined symbols.
+ _LT_TAGVAR(no_undefined_flag, $1)='-bernotok'
# Determine the default libpath from the value encoded in an empty
# executable.
_LT_SYS_MODULE_PATH_AIX([$1])
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
else
- if test "$host_cpu" = ia64; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib'
+ if test ia64 = "$host_cpu"; then
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib'
_LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
- _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
+ _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
else
# Determine the default libpath from the value encoded in an
# empty executable.
_LT_SYS_MODULE_PATH_AIX([$1])
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
# Warning - without using the other run time loading flags,
# -berok will link without error, but may produce a broken library.
- _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok'
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok'
- if test "$with_gnu_ld" = yes; then
+ _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok'
+ _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok'
+ if test yes = "$with_gnu_ld"; then
# We only use this code for GNU lds that support --whole-archive.
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
else
# Exported symbols can be pulled into shared objects from archives
_LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
fi
_LT_TAGVAR(archive_cmds_need_lc, $1)=yes
- # This is similar to how AIX traditionally builds its shared
- # libraries.
- _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
+ # -brtl affects multiple linker settings, -berok does not and is overridden later
+ compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`'
+ if test svr4 != "$with_aix_soname"; then
+ # This is similar to how AIX traditionally builds its shared
+ # libraries. Need -bnortl late, we may have -brtl in LDFLAGS.
+ _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
+ fi
+ if test aix != "$with_aix_soname"; then
+ _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
+ else
+ # used by -dlpreopen to get the symbols
+ _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV $output_objdir/$realname.d/$soname $output_objdir'
+ fi
+ _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d'
fi
fi
;;
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
# Joseph Beckenbach <jrb3@best.com> says some releases of gcc
# support --undefined. This deserves some investigation. FIXME
- _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
# Tell ltmain to make .lib files, not .a files.
libext=lib
# Tell ltmain to make .dll files, not .so files.
- shrext_cmds=".dll"
+ shrext_cmds=.dll
# FIXME: Setting linknames here is a bad hack.
- _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames='
- _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
- $SED -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp;
- else
- $SED -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp;
- fi~
- $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
- linknames='
+ _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
+ _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
+ cp "$export_symbols" "$output_objdir/$soname.def";
+ echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
+ else
+ $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
+ fi~
+ $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+ linknames='
# The linker will not automatically build a static lib if we build a DLL.
# _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
# Don't use ranlib
_LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
_LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~
- lt_tool_outputfile="@TOOL_OUTPUT@"~
- case $lt_outputfile in
- *.exe|*.EXE) ;;
- *)
- lt_outputfile="$lt_outputfile.exe"
- lt_tool_outputfile="$lt_tool_outputfile.exe"
- ;;
- esac~
- func_to_tool_file "$lt_outputfile"~
- if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then
- $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
- $RM "$lt_outputfile.manifest";
- fi'
+ lt_tool_outputfile="@TOOL_OUTPUT@"~
+ case $lt_outputfile in
+ *.exe|*.EXE) ;;
+ *)
+ lt_outputfile=$lt_outputfile.exe
+ lt_tool_outputfile=$lt_tool_outputfile.exe
+ ;;
+ esac~
+ func_to_tool_file "$lt_outputfile"~
+ if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
+ $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+ $RM "$lt_outputfile.manifest";
+ fi'
;;
*)
# g++
# _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
# as there is no search path for DLLs.
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-all-symbols'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols'
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
_LT_TAGVAR(always_export_symbols, $1)=no
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
- # If the export-symbols file already is a .def file (1st line
- # is EXPORTS), use it as is; otherwise, prepend...
- _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
- cp $export_symbols $output_objdir/$soname.def;
- else
- echo EXPORTS > $output_objdir/$soname.def;
- cat $export_symbols >> $output_objdir/$soname.def;
- fi~
- $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+ # If the export-symbols file already is a .def file, use it as
+ # is; otherwise, prepend EXPORTS...
+ _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
+ cp $export_symbols $output_objdir/$soname.def;
+ else
+ echo EXPORTS > $output_objdir/$soname.def;
+ cat $export_symbols >> $output_objdir/$soname.def;
+ fi~
+ $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
else
_LT_TAGVAR(ld_shlibs, $1)=no
fi
_LT_DARWIN_LINKER_FEATURES($1)
;;
+ os2*)
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes
+ _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+ shrext_cmds=.dll
+ _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ prefix_cmds="$SED"~
+ if test EXPORTS = "`$SED 1q $export_symbols`"; then
+ prefix_cmds="$prefix_cmds -e 1d";
+ fi~
+ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+ _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+ ;;
+
dgux*)
case $cc_basename in
ec++*)
_LT_TAGVAR(ld_shlibs, $1)=yes
;;
- gnu*)
- ;;
-
haiku*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(link_all_deplibs, $1)=yes
;;
hpux9*)
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
# but as the default
_LT_TAGVAR(ld_shlibs, $1)=no
;;
aCC*)
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
# explicitly linking system object files so we need to strip them
# from the output so that they don't get included in the library
# dependencies.
- output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+ output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
;;
*)
- if test "$GXX" = yes; then
- _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+ if test yes = "$GXX"; then
+ _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
else
# FIXME: insert proper C++ library support
_LT_TAGVAR(ld_shlibs, $1)=no
;;
hpux10*|hpux11*)
- if test $with_gnu_ld = no; then
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+ if test no = "$with_gnu_ld"; then
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
case $host_cpu in
hppa*64*|ia64*)
;;
*)
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
;;
esac
fi
aCC*)
case $host_cpu in
hppa*64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
;;
ia64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
;;
*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
;;
esac
# Commands to make compiler produce verbose output that lists
# explicitly linking system object files so we need to strip them
# from the output so that they don't get included in the library
# dependencies.
- output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+ output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
;;
*)
- if test "$GXX" = yes; then
- if test $with_gnu_ld = no; then
+ if test yes = "$GXX"; then
+ if test no = "$with_gnu_ld"; then
case $host_cpu in
hppa*64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
;;
ia64*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
;;
*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
;;
esac
fi
interix[[3-9]]*)
_LT_TAGVAR(hardcode_direct, $1)=no
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
# Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
# Instead, shared libraries are loaded at an image base (0x10000000 by
# default) and relocated if they conflict, which is a slow very memory
# consuming and fragmenting process. To avoid this, we pick a random,
# 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
# time. Moving up from 0x10000000 also allows more sbrk(2) space.
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
;;
irix5* | irix6*)
case $cc_basename in
CC*)
# SGI C++
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
# Archives containing C++ object files must be created using
# "CC -ar", where "CC" is the IRIX C++ compiler. This is
_LT_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs'
;;
*)
- if test "$GXX" = yes; then
- if test "$with_gnu_ld" = no; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+ if test yes = "$GXX"; then
+ if test no = "$with_gnu_ld"; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
else
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` -o $lib'
fi
fi
_LT_TAGVAR(link_all_deplibs, $1)=yes
;;
esac
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
_LT_TAGVAR(inherit_rpath, $1)=yes
;;
- linux* | k*bsd*-gnu | kopensolaris*-gnu)
+ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
case $cc_basename in
KCC*)
# Kuck and Associates, Inc. (KAI) C++ Compiler
# KCC will only create a shared library if the output file
# ends with ".so" (or ".sl" for HP-UX), so rename the library
# to its proper name (with version) after linking.
- _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
+ _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv \$templib $lib'
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
# explicitly linking system object files so we need to strip them
# from the output so that they don't get included in the library
# dependencies.
- output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+ output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
# Archives containing C++ object files must be created using
# "CC -Bstatic", where "CC" is the KAI C++ compiler.
# earlier do not add the objects themselves.
case `$CC -V 2>&1` in
*"Version 7."*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
;;
*) # Version 8.0 or newer
tmp_idyn=
case $host_cpu in
ia64*) tmp_idyn=' -i_dynamic';;
esac
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
;;
esac
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
;;
pgCC* | pgcpp*)
# Portland Group C++ compiler
case `$CC -V` in
*pgCC\ [[1-5]].* | *pgcpp\ [[1-5]].*)
_LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~
- rm -rf $tpldir~
- $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
- compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
+ rm -rf $tpldir~
+ $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
+ compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
_LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~
- rm -rf $tpldir~
- $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
- $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
- $RANLIB $oldlib'
+ rm -rf $tpldir~
+ $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
+ $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
+ $RANLIB $oldlib'
_LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~
- rm -rf $tpldir~
- $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
- $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
+ rm -rf $tpldir~
+ $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+ $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~
- rm -rf $tpldir~
- $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
- $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
+ rm -rf $tpldir~
+ $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+ $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
;;
*) # Version 6 and above use weak symbols
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
;;
esac
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}--rpath ${wl}$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl--rpath $wl$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
;;
cxx*)
# Compaq C++
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib $wl-retain-symbols-file $wl$export_symbols'
runpath_var=LD_RUN_PATH
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
# explicitly linking system object files so we need to strip them
# from the output so that they don't get included in the library
# dependencies.
- output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed'
+ output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed'
;;
xl* | mpixl* | bgxl*)
# IBM XL 8.0 on PPC, with GNU ld
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
- _LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
- if test "x$supports_anon_versioning" = xyes; then
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ if test yes = "$supports_anon_versioning"; then
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
- cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
- echo "local: *; };" >> $output_objdir/$libname.ver~
- $CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+ cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+ echo "local: *; };" >> $output_objdir/$libname.ver~
+ $CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
fi
;;
*)
*Sun\ C*)
# Sun C++ 5.9
_LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
- _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file ${wl}$export_symbols'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file $wl$export_symbols'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
_LT_TAGVAR(compiler_needs_object, $1)=yes
# Not sure whether something based on
_LT_TAGVAR(ld_shlibs, $1)=yes
;;
- openbsd2*)
- # C++ shared libraries are fairly broken
- _LT_TAGVAR(ld_shlibs, $1)=no
- ;;
-
- openbsd*)
+ openbsd* | bitrig*)
if test -f /usr/libexec/ld.so; then
_LT_TAGVAR(hardcode_direct, $1)=yes
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
- if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file,$export_symbols -o $lib'
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
- _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+ if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file,$export_symbols -o $lib'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
fi
output_verbose_link_cmd=func_echo_all
else
# KCC will only create a shared library if the output file
# ends with ".so" (or ".sl" for HP-UX), so rename the library
# to its proper name (with version) after linking.
- _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+ _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
# Archives containing C++ object files must be created using
cxx*)
case $host in
osf3*)
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && func_echo_all "${wl}-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+ _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $soname `test -n "$verstring" && func_echo_all "$wl-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
;;
*)
_LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
- echo "-hidden">> $lib.exp~
- $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname ${wl}-input ${wl}$lib.exp `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~
- $RM $lib.exp'
+ echo "-hidden">> $lib.exp~
+ $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname $wl-input $wl$lib.exp `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~
+ $RM $lib.exp'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
;;
esac
# explicitly linking system object files so we need to strip them
# from the output so that they don't get included in the library
# dependencies.
- output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+ output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
;;
*)
- if test "$GXX" = yes && test "$with_gnu_ld" = no; then
- _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
+ if test yes,no = "$GXX,$with_gnu_ld"; then
+ _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
case $host in
osf3*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
;;
*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
;;
esac
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=:
# Commands to make compiler produce verbose output that lists
# Sun C++ 4.2, 5.x and Centerline C++
_LT_TAGVAR(archive_cmds_need_lc,$1)=yes
_LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
- _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -G${allow_undefined_flag} ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+ $CC -G$allow_undefined_flag $wl-M $wl$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
*)
# The compiler driver will combine and reorder linker options,
- # but understands `-z linker_flag'.
+ # but understands '-z linker_flag'.
# Supported since Solaris 2.6 (maybe 2.5.1?)
_LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
;;
;;
gcx*)
# Green Hills C++ Compiler
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
# The C++ compiler must be used to create the archive.
_LT_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
;;
*)
# GNU C++ compiler with Solaris linker
- if test "$GXX" = yes && test "$with_gnu_ld" = no; then
- _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-z ${wl}defs'
+ if test yes,no = "$GXX,$with_gnu_ld"; then
+ _LT_TAGVAR(no_undefined_flag, $1)=' $wl-z ${wl}defs'
if $CC --version | $GREP -v '^2\.7' > /dev/null; then
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -shared $pic_flag -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+ $CC -shared $pic_flag -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
else
- # g++ 2.7 appears to require `-G' NOT `-shared' on this
+ # g++ 2.7 appears to require '-G' NOT '-shared' on this
# platform.
- _LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
- $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+ $CC -G -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
fi
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $wl$libdir'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $wl$libdir'
case $host_os in
solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
*)
- _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
;;
esac
fi
;;
sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
- _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
+ _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
runpath_var='LD_RUN_PATH'
case $cc_basename in
CC*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
;;
*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
;;
esac
;;
sysv5* | sco3.2v5* | sco5v6*)
- # Note: We can NOT use -z defs as we might desire, because we do not
+ # Note: We CANNOT use -z defs as we might desire, because we do not
# link with -lc, and that would cause any symbols used from libc to
# always be unresolved, which means just about no library would
# ever link correctly. If we're not using GNU ld we use -z text
# though, which does catch some bad symbols but isn't as heavy-handed
# as -z defs.
- _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
- _LT_TAGVAR(allow_undefined_flag, $1)='${wl}-z,nodefs'
+ _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
+ _LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs'
_LT_TAGVAR(archive_cmds_need_lc, $1)=no
_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
- _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R,$libdir'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir'
_LT_TAGVAR(hardcode_libdir_separator, $1)=':'
_LT_TAGVAR(link_all_deplibs, $1)=yes
- _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport'
runpath_var='LD_RUN_PATH'
case $cc_basename in
CC*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
_LT_TAGVAR(old_archive_cmds, $1)='$CC -Tprelink_objects $oldobjs~
- '"$_LT_TAGVAR(old_archive_cmds, $1)"
+ '"$_LT_TAGVAR(old_archive_cmds, $1)"
_LT_TAGVAR(reload_cmds, $1)='$CC -Tprelink_objects $reload_objs~
- '"$_LT_TAGVAR(reload_cmds, $1)"
+ '"$_LT_TAGVAR(reload_cmds, $1)"
;;
*)
- _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
- _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
;;
esac
;;
esac
AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
- test "$_LT_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no
+ test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no
- _LT_TAGVAR(GCC, $1)="$GXX"
- _LT_TAGVAR(LD, $1)="$LD"
+ _LT_TAGVAR(GCC, $1)=$GXX
+ _LT_TAGVAR(LD, $1)=$LD
## CAVEAT EMPTOR:
## There is no encapsulation within the following macros, do not change
lt_cv_path_LD=$lt_save_path_LD
lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
-fi # test "$_lt_caught_CXX_error" != yes
+fi # test yes != "$_lt_caught_CXX_error"
AC_LANG_POP
])# _LT_LANG_CXX_CONFIG
AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])
func_stripname_cnf ()
{
- case ${2} in
- .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;;
- *) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;;
+ case @S|@2 in
+ .*) func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%\\\\@S|@2\$%%"`;;
+ *) func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%@S|@2\$%%"`;;
esac
} # func_stripname_cnf
])# _LT_FUNC_STRIPNAME_CNF
+
# _LT_SYS_HIDDEN_LIBDEPS([TAGNAME])
# ---------------------------------
# Figure out "hidden" library dependencies from verbose
pre_test_object_deps_done=no
for p in `eval "$output_verbose_link_cmd"`; do
- case ${prev}${p} in
+ case $prev$p in
-L* | -R* | -l*)
# Some compilers place space between "-{L,R}" and the path.
# Remove the space.
- if test $p = "-L" ||
- test $p = "-R"; then
+ if test x-L = "$p" ||
+ test x-R = "$p"; then
prev=$p
continue
fi
case $p in
=*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;;
esac
- if test "$pre_test_object_deps_done" = no; then
- case ${prev} in
+ if test no = "$pre_test_object_deps_done"; then
+ case $prev in
-L | -R)
# Internal compiler library paths should come after those
# provided the user. The postdeps already come after the
# user supplied libs so there is no need to process them.
if test -z "$_LT_TAGVAR(compiler_lib_search_path, $1)"; then
- _LT_TAGVAR(compiler_lib_search_path, $1)="${prev}${p}"
+ _LT_TAGVAR(compiler_lib_search_path, $1)=$prev$p
else
- _LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} ${prev}${p}"
+ _LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} $prev$p"
fi
;;
# The "-l" case would never come before the object being
esac
else
if test -z "$_LT_TAGVAR(postdeps, $1)"; then
- _LT_TAGVAR(postdeps, $1)="${prev}${p}"
+ _LT_TAGVAR(postdeps, $1)=$prev$p
else
- _LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} ${prev}${p}"
+ _LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} $prev$p"
fi
fi
prev=
continue
fi
- if test "$pre_test_object_deps_done" = no; then
+ if test no = "$pre_test_object_deps_done"; then
if test -z "$_LT_TAGVAR(predep_objects, $1)"; then
- _LT_TAGVAR(predep_objects, $1)="$p"
+ _LT_TAGVAR(predep_objects, $1)=$p
else
_LT_TAGVAR(predep_objects, $1)="$_LT_TAGVAR(predep_objects, $1) $p"
fi
else
if test -z "$_LT_TAGVAR(postdep_objects, $1)"; then
- _LT_TAGVAR(postdep_objects, $1)="$p"
+ _LT_TAGVAR(postdep_objects, $1)=$p
else
_LT_TAGVAR(postdep_objects, $1)="$_LT_TAGVAR(postdep_objects, $1) $p"
fi
_LT_TAGVAR(postdep_objects,$1)=
_LT_TAGVAR(postdeps,$1)=
;;
-
-linux*)
- case `$CC -V 2>&1 | sed 5q` in
- *Sun\ C*)
- # Sun C++ 5.9
-
- # The more standards-conforming stlport4 library is
- # incompatible with the Cstd library. Avoid specifying
- # it if it's in CXXFLAGS. Ignore libCrun as
- # -library=stlport4 depends on it.
- case " $CXX $CXXFLAGS " in
- *" -library=stlport4 "*)
- solaris_use_stlport4=yes
- ;;
- esac
-
- if test "$solaris_use_stlport4" != yes; then
- _LT_TAGVAR(postdeps,$1)='-library=Cstd -library=Crun'
- fi
- ;;
- esac
- ;;
-
-solaris*)
- case $cc_basename in
- CC* | sunCC*)
- # The more standards-conforming stlport4 library is
- # incompatible with the Cstd library. Avoid specifying
- # it if it's in CXXFLAGS. Ignore libCrun as
- # -library=stlport4 depends on it.
- case " $CXX $CXXFLAGS " in
- *" -library=stlport4 "*)
- solaris_use_stlport4=yes
- ;;
- esac
-
- # Adding this requires a known-good setup of shared libraries for
- # Sun compiler versions before 5.6, else PIC objects from an old
- # archive will be linked into the output, leading to subtle bugs.
- if test "$solaris_use_stlport4" != yes; then
- _LT_TAGVAR(postdeps,$1)='-library=Cstd -library=Crun'
- fi
- ;;
- esac
- ;;
esac
])
esac
_LT_TAGVAR(compiler_lib_search_dirs, $1)=
if test -n "${_LT_TAGVAR(compiler_lib_search_path, $1)}"; then
- _LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | ${SED} -e 's! -L! !g' -e 's!^ !!'`
+ _LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | $SED -e 's! -L! !g' -e 's!^ !!'`
fi
_LT_TAGDECL([], [compiler_lib_search_dirs], [1],
[The directories searched by this compiler when creating a shared library])
# --------------------------
# Ensure that the configuration variables for a Fortran 77 compiler are
# suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to `libtool'.
+# to write the compiler configuration to 'libtool'.
m4_defun([_LT_LANG_F77_CONFIG],
[AC_LANG_PUSH(Fortran 77)
-if test -z "$F77" || test "X$F77" = "Xno"; then
+if test -z "$F77" || test no = "$F77"; then
_lt_disable_F77=yes
fi
# the F77 compiler isn't working. Some variables (like enable_shared)
# are currently assumed to apply to all compilers on this platform,
# and will be corrupted by setting them based on a non-working compiler.
-if test "$_lt_disable_F77" != yes; then
+if test yes != "$_lt_disable_F77"; then
# Code to be used in simple compile tests
lt_simple_compile_test_code="\
subroutine t
_LT_LINKER_BOILERPLATE
# Allow CC to be a program name with arguments.
- lt_save_CC="$CC"
+ lt_save_CC=$CC
lt_save_GCC=$GCC
lt_save_CFLAGS=$CFLAGS
CC=${F77-"f77"}
AC_MSG_RESULT([$can_build_shared])
AC_MSG_CHECKING([whether to build shared libraries])
- test "$can_build_shared" = "no" && enable_shared=no
+ test no = "$can_build_shared" && enable_shared=no
# On AIX, shared libraries and static libraries use the same namespace, and
# are all built from PIC.
case $host_os in
aix3*)
- test "$enable_shared" = yes && enable_static=no
+ test yes = "$enable_shared" && enable_static=no
if test -n "$RANLIB"; then
archive_cmds="$archive_cmds~\$RANLIB \$lib"
postinstall_cmds='$RANLIB $lib'
fi
;;
aix[[4-9]]*)
- if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
- test "$enable_shared" = yes && enable_static=no
+ if test ia64 != "$host_cpu"; then
+ case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+ yes,aix,yes) ;; # shared object as lib.so file only
+ yes,svr4,*) ;; # shared object as lib.so archive member only
+ yes,*) enable_static=no ;; # shared object in lib.a archive as well
+ esac
fi
;;
esac
AC_MSG_CHECKING([whether to build static libraries])
# Make sure either enable_shared or enable_static is yes.
- test "$enable_shared" = yes || enable_static=yes
+ test yes = "$enable_shared" || enable_static=yes
AC_MSG_RESULT([$enable_static])
- _LT_TAGVAR(GCC, $1)="$G77"
- _LT_TAGVAR(LD, $1)="$LD"
+ _LT_TAGVAR(GCC, $1)=$G77
+ _LT_TAGVAR(LD, $1)=$LD
## CAVEAT EMPTOR:
## There is no encapsulation within the following macros, do not change
fi # test -n "$compiler"
GCC=$lt_save_GCC
- CC="$lt_save_CC"
- CFLAGS="$lt_save_CFLAGS"
-fi # test "$_lt_disable_F77" != yes
+ CC=$lt_save_CC
+ CFLAGS=$lt_save_CFLAGS
+fi # test yes != "$_lt_disable_F77"
AC_LANG_POP
])# _LT_LANG_F77_CONFIG
# -------------------------
# Ensure that the configuration variables for a Fortran compiler are
# suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to `libtool'.
+# to write the compiler configuration to 'libtool'.
m4_defun([_LT_LANG_FC_CONFIG],
[AC_LANG_PUSH(Fortran)
-if test -z "$FC" || test "X$FC" = "Xno"; then
+if test -z "$FC" || test no = "$FC"; then
_lt_disable_FC=yes
fi
# the FC compiler isn't working. Some variables (like enable_shared)
# are currently assumed to apply to all compilers on this platform,
# and will be corrupted by setting them based on a non-working compiler.
-if test "$_lt_disable_FC" != yes; then
+if test yes != "$_lt_disable_FC"; then
# Code to be used in simple compile tests
lt_simple_compile_test_code="\
subroutine t
_LT_LINKER_BOILERPLATE
# Allow CC to be a program name with arguments.
- lt_save_CC="$CC"
+ lt_save_CC=$CC
lt_save_GCC=$GCC
lt_save_CFLAGS=$CFLAGS
CC=${FC-"f95"}
AC_MSG_RESULT([$can_build_shared])
AC_MSG_CHECKING([whether to build shared libraries])
- test "$can_build_shared" = "no" && enable_shared=no
+ test no = "$can_build_shared" && enable_shared=no
# On AIX, shared libraries and static libraries use the same namespace, and
# are all built from PIC.
case $host_os in
aix3*)
- test "$enable_shared" = yes && enable_static=no
+ test yes = "$enable_shared" && enable_static=no
if test -n "$RANLIB"; then
archive_cmds="$archive_cmds~\$RANLIB \$lib"
postinstall_cmds='$RANLIB $lib'
fi
;;
aix[[4-9]]*)
- if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
- test "$enable_shared" = yes && enable_static=no
+ if test ia64 != "$host_cpu"; then
+ case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+ yes,aix,yes) ;; # shared object as lib.so file only
+ yes,svr4,*) ;; # shared object as lib.so archive member only
+ yes,*) enable_static=no ;; # shared object in lib.a archive as well
+ esac
fi
;;
esac
AC_MSG_CHECKING([whether to build static libraries])
# Make sure either enable_shared or enable_static is yes.
- test "$enable_shared" = yes || enable_static=yes
+ test yes = "$enable_shared" || enable_static=yes
AC_MSG_RESULT([$enable_static])
- _LT_TAGVAR(GCC, $1)="$ac_cv_fc_compiler_gnu"
- _LT_TAGVAR(LD, $1)="$LD"
+ _LT_TAGVAR(GCC, $1)=$ac_cv_fc_compiler_gnu
+ _LT_TAGVAR(LD, $1)=$LD
## CAVEAT EMPTOR:
## There is no encapsulation within the following macros, do not change
GCC=$lt_save_GCC
CC=$lt_save_CC
CFLAGS=$lt_save_CFLAGS
-fi # test "$_lt_disable_FC" != yes
+fi # test yes != "$_lt_disable_FC"
AC_LANG_POP
])# _LT_LANG_FC_CONFIG
# --------------------------
# Ensure that the configuration variables for the GNU Java Compiler compiler
# are suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to `libtool'.
+# to write the compiler configuration to 'libtool'.
m4_defun([_LT_LANG_GCJ_CONFIG],
[AC_REQUIRE([LT_PROG_GCJ])dnl
AC_LANG_SAVE
CFLAGS=$GCJFLAGS
compiler=$CC
_LT_TAGVAR(compiler, $1)=$CC
-_LT_TAGVAR(LD, $1)="$LD"
+_LT_TAGVAR(LD, $1)=$LD
_LT_CC_BASENAME([$compiler])
# GCJ did not exist at the time GCC didn't implicitly link libc in.
# --------------------------
# Ensure that the configuration variables for the GNU Go compiler
# are suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to `libtool'.
+# to write the compiler configuration to 'libtool'.
m4_defun([_LT_LANG_GO_CONFIG],
[AC_REQUIRE([LT_PROG_GO])dnl
AC_LANG_SAVE
CFLAGS=$GOFLAGS
compiler=$CC
_LT_TAGVAR(compiler, $1)=$CC
-_LT_TAGVAR(LD, $1)="$LD"
+_LT_TAGVAR(LD, $1)=$LD
_LT_CC_BASENAME([$compiler])
# Go did not exist at the time GCC didn't implicitly link libc in.
# -------------------------
# Ensure that the configuration variables for the Windows resource compiler
# are suitably defined. These variables are subsequently used by _LT_CONFIG
-# to write the compiler configuration to `libtool'.
+# to write the compiler configuration to 'libtool'.
m4_defun([_LT_LANG_RC_CONFIG],
[AC_REQUIRE([LT_PROG_RC])dnl
AC_LANG_SAVE
lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }'
# Code to be used in simple link tests
-lt_simple_link_test_code="$lt_simple_compile_test_code"
+lt_simple_link_test_code=$lt_simple_compile_test_code
# ltmain only uses $CC for tagged configurations so make sure $CC is set.
_LT_TAG_COMPILER
_LT_LINKER_BOILERPLATE
# Allow CC to be a program name with arguments.
-lt_save_CC="$CC"
+lt_save_CC=$CC
lt_save_CFLAGS=$CFLAGS
lt_save_GCC=$GCC
GCC=
[m4_ifdef([AC_PROG_GCJ], [AC_PROG_GCJ],
[m4_ifdef([A][M_PROG_GCJ], [A][M_PROG_GCJ],
[AC_CHECK_TOOL(GCJ, gcj,)
- test "x${GCJFLAGS+set}" = xset || GCJFLAGS="-g -O2"
+ test set = "${GCJFLAGS+set}" || GCJFLAGS="-g -O2"
AC_SUBST(GCJFLAGS)])])[]dnl
])
# Add /usr/xpg4/bin/sed as it is typically found on Solaris
# along with /bin/sed that truncates output.
for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do
- test ! -f $lt_ac_sed && continue
+ test ! -f "$lt_ac_sed" && continue
cat /dev/null > conftest.in
lt_ac_count=0
echo $ECHO_N "0123456789$ECHO_C" >conftest.in
$lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break
cmp -s conftest.out conftest.nl || break
# 10000 chars as input seems more than enough
- test $lt_ac_count -gt 10 && break
+ test 10 -lt "$lt_ac_count" && break
lt_ac_count=`expr $lt_ac_count + 1`
- if test $lt_ac_count -gt $lt_ac_max; then
+ if test "$lt_ac_count" -gt "$lt_ac_max"; then
lt_ac_max=$lt_ac_count
lt_cv_path_SED=$lt_ac_sed
fi
# Find out whether the shell is Bourne or XSI compatible,
# or has some other useful features.
m4_defun([_LT_CHECK_SHELL_FEATURES],
-[AC_MSG_CHECKING([whether the shell understands some XSI constructs])
-# Try some XSI features
-xsi_shell=no
-( _lt_dummy="a/b/c"
- test "${_lt_dummy##*/},${_lt_dummy%/*},${_lt_dummy#??}"${_lt_dummy%"$_lt_dummy"}, \
- = c,a/b,b/c, \
- && eval 'test $(( 1 + 1 )) -eq 2 \
- && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \
- && xsi_shell=yes
-AC_MSG_RESULT([$xsi_shell])
-_LT_CONFIG_LIBTOOL_INIT([xsi_shell='$xsi_shell'])
-
-AC_MSG_CHECKING([whether the shell understands "+="])
-lt_shell_append=no
-( foo=bar; set foo baz; eval "$[1]+=\$[2]" && test "$foo" = barbaz ) \
- >/dev/null 2>&1 \
- && lt_shell_append=yes
-AC_MSG_RESULT([$lt_shell_append])
-_LT_CONFIG_LIBTOOL_INIT([lt_shell_append='$lt_shell_append'])
-
-if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+[if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
lt_unset=unset
else
lt_unset=false
])# _LT_CHECK_SHELL_FEATURES
-# _LT_PROG_FUNCTION_REPLACE (FUNCNAME, REPLACEMENT-BODY)
-# ------------------------------------------------------
-# In `$cfgfile', look for function FUNCNAME delimited by `^FUNCNAME ()$' and
-# '^} FUNCNAME ', and replace its body with REPLACEMENT-BODY.
-m4_defun([_LT_PROG_FUNCTION_REPLACE],
-[dnl {
-sed -e '/^$1 ()$/,/^} # $1 /c\
-$1 ()\
-{\
-m4_bpatsubsts([$2], [$], [\\], [^\([ ]\)], [\\\1])
-} # Extended-shell $1 implementation' "$cfgfile" > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
-test 0 -eq $? || _lt_function_replace_fail=:
-])
-
-
-# _LT_PROG_REPLACE_SHELLFNS
-# -------------------------
-# Replace existing portable implementations of several shell functions with
-# equivalent extended shell implementations where those features are available..
-m4_defun([_LT_PROG_REPLACE_SHELLFNS],
-[if test x"$xsi_shell" = xyes; then
- _LT_PROG_FUNCTION_REPLACE([func_dirname], [dnl
- case ${1} in
- */*) func_dirname_result="${1%/*}${2}" ;;
- * ) func_dirname_result="${3}" ;;
- esac])
-
- _LT_PROG_FUNCTION_REPLACE([func_basename], [dnl
- func_basename_result="${1##*/}"])
-
- _LT_PROG_FUNCTION_REPLACE([func_dirname_and_basename], [dnl
- case ${1} in
- */*) func_dirname_result="${1%/*}${2}" ;;
- * ) func_dirname_result="${3}" ;;
- esac
- func_basename_result="${1##*/}"])
-
- _LT_PROG_FUNCTION_REPLACE([func_stripname], [dnl
- # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
- # positional parameters, so assign one to ordinary parameter first.
- func_stripname_result=${3}
- func_stripname_result=${func_stripname_result#"${1}"}
- func_stripname_result=${func_stripname_result%"${2}"}])
-
- _LT_PROG_FUNCTION_REPLACE([func_split_long_opt], [dnl
- func_split_long_opt_name=${1%%=*}
- func_split_long_opt_arg=${1#*=}])
-
- _LT_PROG_FUNCTION_REPLACE([func_split_short_opt], [dnl
- func_split_short_opt_arg=${1#??}
- func_split_short_opt_name=${1%"$func_split_short_opt_arg"}])
-
- _LT_PROG_FUNCTION_REPLACE([func_lo2o], [dnl
- case ${1} in
- *.lo) func_lo2o_result=${1%.lo}.${objext} ;;
- *) func_lo2o_result=${1} ;;
- esac])
-
- _LT_PROG_FUNCTION_REPLACE([func_xform], [ func_xform_result=${1%.*}.lo])
-
- _LT_PROG_FUNCTION_REPLACE([func_arith], [ func_arith_result=$(( $[*] ))])
-
- _LT_PROG_FUNCTION_REPLACE([func_len], [ func_len_result=${#1}])
-fi
-
-if test x"$lt_shell_append" = xyes; then
- _LT_PROG_FUNCTION_REPLACE([func_append], [ eval "${1}+=\\${2}"])
-
- _LT_PROG_FUNCTION_REPLACE([func_append_quoted], [dnl
- func_quote_for_eval "${2}"
-dnl m4 expansion turns \\\\ into \\, and then the shell eval turns that into \
- eval "${1}+=\\\\ \\$func_quote_for_eval_result"])
-
- # Save a `func_append' function call where possible by direct use of '+='
- sed -e 's%func_append \([[a-zA-Z_]]\{1,\}\) "%\1+="%g' $cfgfile > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
- test 0 -eq $? || _lt_function_replace_fail=:
-else
- # Save a `func_append' function call even when '+=' is not available
- sed -e 's%func_append \([[a-zA-Z_]]\{1,\}\) "%\1="$\1%g' $cfgfile > $cfgfile.tmp \
- && mv -f "$cfgfile.tmp" "$cfgfile" \
- || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
- test 0 -eq $? || _lt_function_replace_fail=:
-fi
-
-if test x"$_lt_function_replace_fail" = x":"; then
- AC_MSG_WARN([Unable to substitute extended shell functions in $ofile])
-fi
-])
-
# _LT_PATH_CONVERSION_FUNCTIONS
# -----------------------------
-# Determine which file name conversion functions should be used by
+# Determine what file name conversion functions should be used by
# func_to_host_file (and, implicitly, by func_to_host_path). These are needed
# for certain cross-compile configurations and native mingw.
m4_defun([_LT_PATH_CONVERSION_FUNCTIONS],
# Helper functions for option handling. -*- Autoconf -*-
#
-# Copyright (C) 2004, 2005, 2007, 2008, 2009 Free Software Foundation,
-# Inc.
+# Copyright (C) 2004-2005, 2007-2009, 2011-2015 Free Software
+# Foundation, Inc.
# Written by Gary V. Vaughan, 2004
#
# This file is free software; the Free Software Foundation gives
# unlimited permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
-# serial 7 ltoptions.m4
+# serial 8 ltoptions.m4
# This is to help aclocal find these macros, as it can't see m4_define.
AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])
[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl
m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]),
_LT_MANGLE_DEFUN([$1], [$2]),
- [m4_warning([Unknown $1 option `$2'])])[]dnl
+ [m4_warning([Unknown $1 option '$2'])])[]dnl
])
dnl
dnl If no reference was made to various pairs of opposing options, then
dnl we run the default mode handler for the pair. For example, if neither
- dnl `shared' nor `disable-shared' was passed, we enable building of shared
+ dnl 'shared' nor 'disable-shared' was passed, we enable building of shared
dnl archives by default:
_LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED])
_LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC])
_LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC])
_LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install],
- [_LT_ENABLE_FAST_INSTALL])
+ [_LT_ENABLE_FAST_INSTALL])
+ _LT_UNLESS_OPTIONS([LT_INIT], [aix-soname=aix aix-soname=both aix-soname=svr4],
+ [_LT_WITH_AIX_SONAME([aix])])
])
])# _LT_SET_OPTIONS
[_LT_SET_OPTION([LT_INIT], [dlopen])
AC_DIAGNOSE([obsolete],
[$0: Remove this warning and the call to _LT_SET_OPTION when you
-put the `dlopen' option into LT_INIT's first parameter.])
+put the 'dlopen' option into LT_INIT's first parameter.])
])
dnl aclocal-1.4 backwards compatibility:
_LT_SET_OPTION([LT_INIT], [win32-dll])
AC_DIAGNOSE([obsolete],
[$0: Remove this warning and the call to _LT_SET_OPTION when you
-put the `win32-dll' option into LT_INIT's first parameter.])
+put the 'win32-dll' option into LT_INIT's first parameter.])
])
dnl aclocal-1.4 backwards compatibility:
# _LT_ENABLE_SHARED([DEFAULT])
# ----------------------------
-# implement the --enable-shared flag, and supports the `shared' and
-# `disable-shared' LT_INIT options.
-# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'.
+# implement the --enable-shared flag, and supports the 'shared' and
+# 'disable-shared' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'.
m4_define([_LT_ENABLE_SHARED],
[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl
AC_ARG_ENABLE([shared],
*)
enable_shared=no
# Look at the argument we got. We use all the common list separators.
- lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+ lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
for pkg in $enableval; do
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
if test "X$pkg" = "X$p"; then
enable_shared=yes
fi
done
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
;;
esac],
[enable_shared=]_LT_ENABLE_SHARED_DEFAULT)
# _LT_ENABLE_STATIC([DEFAULT])
# ----------------------------
-# implement the --enable-static flag, and support the `static' and
-# `disable-static' LT_INIT options.
-# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'.
+# implement the --enable-static flag, and support the 'static' and
+# 'disable-static' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'.
m4_define([_LT_ENABLE_STATIC],
[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl
AC_ARG_ENABLE([static],
*)
enable_static=no
# Look at the argument we got. We use all the common list separators.
- lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+ lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
for pkg in $enableval; do
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
if test "X$pkg" = "X$p"; then
enable_static=yes
fi
done
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
;;
esac],
[enable_static=]_LT_ENABLE_STATIC_DEFAULT)
# _LT_ENABLE_FAST_INSTALL([DEFAULT])
# ----------------------------------
-# implement the --enable-fast-install flag, and support the `fast-install'
-# and `disable-fast-install' LT_INIT options.
-# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'.
+# implement the --enable-fast-install flag, and support the 'fast-install'
+# and 'disable-fast-install' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'.
m4_define([_LT_ENABLE_FAST_INSTALL],
[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl
AC_ARG_ENABLE([fast-install],
*)
enable_fast_install=no
# Look at the argument we got. We use all the common list separators.
- lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+ lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
for pkg in $enableval; do
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
if test "X$pkg" = "X$p"; then
enable_fast_install=yes
fi
done
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
;;
esac],
[enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT)
[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install])
AC_DIAGNOSE([obsolete],
[$0: Remove this warning and the call to _LT_SET_OPTION when you put
-the `fast-install' option into LT_INIT's first parameter.])
+the 'fast-install' option into LT_INIT's first parameter.])
])
AU_DEFUN([AC_DISABLE_FAST_INSTALL],
[_LT_SET_OPTION([LT_INIT], [disable-fast-install])
AC_DIAGNOSE([obsolete],
[$0: Remove this warning and the call to _LT_SET_OPTION when you put
-the `disable-fast-install' option into LT_INIT's first parameter.])
+the 'disable-fast-install' option into LT_INIT's first parameter.])
])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], [])
+# _LT_WITH_AIX_SONAME([DEFAULT])
+# ----------------------------------
+# implement the --with-aix-soname flag, and support the `aix-soname=aix'
+# and `aix-soname=both' and `aix-soname=svr4' LT_INIT options. DEFAULT
+# is either `aix', `both' or `svr4'. If omitted, it defaults to `aix'.
+m4_define([_LT_WITH_AIX_SONAME],
+[m4_define([_LT_WITH_AIX_SONAME_DEFAULT], [m4_if($1, svr4, svr4, m4_if($1, both, both, aix))])dnl
+shared_archive_member_spec=
+case $host,$enable_shared in
+power*-*-aix[[5-9]]*,yes)
+ AC_MSG_CHECKING([which variant of shared library versioning to provide])
+ AC_ARG_WITH([aix-soname],
+ [AS_HELP_STRING([--with-aix-soname=aix|svr4|both],
+ [shared library versioning (aka "SONAME") variant to provide on AIX, @<:@default=]_LT_WITH_AIX_SONAME_DEFAULT[@:>@.])],
+ [case $withval in
+ aix|svr4|both)
+ ;;
+ *)
+ AC_MSG_ERROR([Unknown argument to --with-aix-soname])
+ ;;
+ esac
+ lt_cv_with_aix_soname=$with_aix_soname],
+ [AC_CACHE_VAL([lt_cv_with_aix_soname],
+ [lt_cv_with_aix_soname=]_LT_WITH_AIX_SONAME_DEFAULT)
+ with_aix_soname=$lt_cv_with_aix_soname])
+ AC_MSG_RESULT([$with_aix_soname])
+ if test aix != "$with_aix_soname"; then
+ # For the AIX way of multilib, we name the shared archive member
+ # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o',
+ # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File.
+ # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag,
+ # the AIX toolchain works better with OBJECT_MODE set (default 32).
+ if test 64 = "${OBJECT_MODE-32}"; then
+ shared_archive_member_spec=shr_64
+ else
+ shared_archive_member_spec=shr
+ fi
+ fi
+ ;;
+*)
+ with_aix_soname=aix
+ ;;
+esac
+
+_LT_DECL([], [shared_archive_member_spec], [0],
+ [Shared archive member basename, for filename based shared library versioning on AIX])dnl
+])# _LT_WITH_AIX_SONAME
+
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=aix], [_LT_WITH_AIX_SONAME([aix])])
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=both], [_LT_WITH_AIX_SONAME([both])])
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=svr4], [_LT_WITH_AIX_SONAME([svr4])])
+
+
# _LT_WITH_PIC([MODE])
# --------------------
-# implement the --with-pic flag, and support the `pic-only' and `no-pic'
+# implement the --with-pic flag, and support the 'pic-only' and 'no-pic'
# LT_INIT options.
-# MODE is either `yes' or `no'. If omitted, it defaults to `both'.
+# MODE is either 'yes' or 'no'. If omitted, it defaults to 'both'.
m4_define([_LT_WITH_PIC],
[AC_ARG_WITH([pic],
[AS_HELP_STRING([--with-pic@<:@=PKGS@:>@],
*)
pic_mode=default
# Look at the argument we got. We use all the common list separators.
- lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+ lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
for lt_pkg in $withval; do
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
if test "X$lt_pkg" = "X$lt_p"; then
pic_mode=yes
fi
done
- IFS="$lt_save_ifs"
+ IFS=$lt_save_ifs
;;
esac],
- [pic_mode=default])
-
-test -z "$pic_mode" && pic_mode=m4_default([$1], [default])
+ [pic_mode=m4_default([$1], [default])])
_LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl
])# _LT_WITH_PIC
[_LT_SET_OPTION([LT_INIT], [pic-only])
AC_DIAGNOSE([obsolete],
[$0: Remove this warning and the call to _LT_SET_OPTION when you
-put the `pic-only' option into LT_INIT's first parameter.])
+put the 'pic-only' option into LT_INIT's first parameter.])
])
dnl aclocal-1.4 backwards compatibility:
# ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*-
#
-# Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
+# Copyright (C) 2004-2005, 2007-2008, 2011-2015 Free Software
+# Foundation, Inc.
# Written by Gary V. Vaughan, 2004
#
# This file is free software; the Free Software Foundation gives
# ------------
# Manipulate m4 lists.
# These macros are necessary as long as will still need to support
-# Autoconf-2.59 which quotes differently.
+# Autoconf-2.59, which quotes differently.
m4_define([lt_car], [[$1]])
m4_define([lt_cdr],
[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])],
# lt_append(MACRO-NAME, STRING, [SEPARATOR])
# ------------------------------------------
-# Redefine MACRO-NAME to hold its former content plus `SEPARATOR'`STRING'.
+# Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'.
# Note that neither SEPARATOR nor STRING are expanded; they are appended
# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked).
# No SEPARATOR is output if MACRO-NAME was previously undefined (different
# ltversion.m4 -- version numbers -*- Autoconf -*-
#
-# Copyright (C) 2004 Free Software Foundation, Inc.
+# Copyright (C) 2004, 2011-2015 Free Software Foundation, Inc.
# Written by Scott James Remnant, 2004
#
# This file is free software; the Free Software Foundation gives
# @configure_input@
-# serial 3337 ltversion.m4
+# serial 4179 ltversion.m4
# This file is part of GNU Libtool
-m4_define([LT_PACKAGE_VERSION], [2.4.2])
-m4_define([LT_PACKAGE_REVISION], [1.3337])
+m4_define([LT_PACKAGE_VERSION], [2.4.6])
+m4_define([LT_PACKAGE_REVISION], [2.4.6])
AC_DEFUN([LTVERSION_VERSION],
-[macro_version='2.4.2'
-macro_revision='1.3337'
+[macro_version='2.4.6'
+macro_revision='2.4.6'
_LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?])
_LT_DECL(, macro_revision, 0)
])
# lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*-
#
-# Copyright (C) 2004, 2005, 2007, 2009 Free Software Foundation, Inc.
+# Copyright (C) 2004-2005, 2007, 2009, 2011-2015 Free Software
+# Foundation, Inc.
# Written by Scott James Remnant, 2004.
#
# This file is free software; the Free Software Foundation gives
# These exist entirely to fool aclocal when bootstrapping libtool.
#
-# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN)
+# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN),
# which have later been changed to m4_define as they aren't part of the
# exported API, or moved to Autoconf or Automake where they belong.
#
# included after everything else. This provides aclocal with the
# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything
# because those macros already exist, or will be overwritten later.
-# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6.
+# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6.
#
# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here.
# Yes, that means every name once taken will need to remain here until
# Pre-built configuration
# See scripts\pnglibconf.mak for more options
+!ifndef PNGLIBCONF_H_PREBUILT
PNGLIBCONF_H_PREBUILT = scripts\pnglibconf.h.prebuilt
+!endif
## Variables
OBJS = \
# Pre-built configuration
# See scripts\pnglibconf.mak for more options
+!ifndef PNGLIBCONF_H_PREBUILT
PNGLIBCONF_H_PREBUILT = scripts\pnglibconf.h.prebuilt
+!endif
## Variables
VERMAJ = 1
VERMIN = 6
-VERMIC = 13
+VERMIC = 21
VER = $(VERMAJ).$(VERMIN).$(VERMIC)
NAME = libpng
PACKAGE = $(NAME)-$(VER)
RANLIB=ranlib
CP=cp
RM_F=/bin/rm -f
-ARCH=-arch ppc -arch i386 -arch x86_64
CPPFLAGS=-I$(ZLIBINC)
# CFLAGS=-W -Wall -O3 -funroll-loops
-CFLAGS=-W -Wall -O -funroll-loops $(ARCH)
-LDFLAGS=-L. -L$(ZLIBLIB) -lpng16 -lz $(ARCH)
+CFLAGS=-W -Wall -O -funroll-loops
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng16 -lz
INCPATH=$(prefix)/include
LIBPATH=$(exec_prefix)/lib
$(CC) -dynamiclib \
-install_name $(LIBPATH)/$(LIBSOMAJ) \
-current_version 16 -compatibility_version 16 \
- $(ARCH) -o $(LIBSOMAJ) \
+ -o $(LIBSOMAJ) \
$(OBJSDLL) -L$(ZLIBLIB) -lz
pngtest: pngtest.o $(LIBSO)
# Library name:
LIBNAME = libpng16
PNGMAJ = 16
-RELEASE = 13
+RELEASE = 21
# Shared library names:
LIBSO=$(LIBNAME).so
# Library name:
LIBNAME = libpng16
PNGMAJ = 16
-RELEASE = 13
+RELEASE = 21
# Shared library names:
LIBSO=$(LIBNAME).dll
LIB= png16
SHLIB_MAJOR= 0
-SHLIB_MINOR= 1.6.13
+SHLIB_MINOR= 1.6.21
SRCS= png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
pngwtran.c pngmem.c pngerror.c pngpread.c
LIB= png
SHLIB_MAJOR= 16
-SHLIB_MINOR= 1.6.13
+SHLIB_MINOR= 1.6.21
SRCS= png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
pngwtran.c pngmem.c pngerror.c pngpread.c
MANDIR= ${PREFIX}/man/cat
SHLIB_MAJOR= 16
-SHLIB_MINOR= 1.6.13
+SHLIB_MINOR= 1.6.21
LIB= png
SRCS= png.c pngerror.c pngget.c pngmem.c pngpread.c \
chmod 644 $(DESTDIR)$(LIBPATH)/libpng.a
clean:
- $(RM_F) *.o libpng.a pngtest pngout.png pnglibconf.*
+ $(RM_F) *.o libpng.a pngtest pngout.png pnglibconf.h pnglibconf.c \
+ pnglibconf.out
DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
writelock:
# Pre-built configuration
# See scripts\pnglibconf.mak for more options
+!ifndef PNGLIBCONF_H_PREBUILT
PNGLIBCONF_H_PREBUILT = scripts\pnglibconf.h.prebuilt
+!endif
O=.obj
E=.exe
LD = link
AR = lib
CPPFLAGS = -I..\zlib
-CFLAGS = -nologo -D_CRT_SECURE_NO_DEPRECATE -MD -O2 -W3
+CFLAGS = -nologo -D_CRT_SECURE_NO_DEPRECATE -D_CRT_SECURE_NO_WARNINGS -MD -O2 -W3
LDFLAGS = -nologo
ARFLAGS = -nologo
CP = copy
#!/bin/awk -f
# scripts/options.awk - library build configuration control
#
-# last changed in libpng version 1.5.7 - December 15, 2011
+# last changed in libpng version 1.6.11 - June 5, 2014
#
-# Copyright (c) 1998-2011 Glenn Randers-Pehrson
+# Copyright (c) 1998-2014 Glenn Randers-Pehrson
#
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
com
version
com
-com Copyright (c) 1998-2012 Glenn Randers-Pehrson
+com Copyright (c) 1998-2016 Glenn Randers-Pehrson
com
com This code is released under the libpng license.
com For conditions of distribution and use, see the disclaimer
logunsupported = 1
+# The following allows the output from configure to modify the contents of
+# pnglibconf.h
+
+@#ifdef HAVE_CONFIG_H
+@# include "config.h"
+@#endif
+
# PNG_USER_CONFIG has to be defined on the compiler command line
# to cause pngusr.h to be read while constructing pnglibconf.h
#
setting PREFIX
-# Default to using the read macros
-
-setting DEFAULT_READ_MACROS default 1
-
# Implementation specific control of the optimizations, enabled by those
# hardware or software options that need it (typically when run-time choices
# must be made by the user)
# ARM_NEON_API: (PNG_ARM_NEON == 1) allow the optimization to be switched on
# with png_set_option
# ARM_NEON_CHECK: (PNG_ARM_NEON == 1) compile a run-time check to see if Neon
-# extensions are supported, this is poorly supported and
-# deprectated - use the png_set_option API.
+# extensions are supported. This is poorly supported and
+# deprecated - use the png_set_option API.
setting ARM_NEON_OPT
option ARM_NEON_API disabled requires ALIGNED_MEMORY enables SET_OPTION,
sets ARM_NEON_OPT 1
sets ARM_NEON_OPT 1
# These settings configure the default compression level (0-9) and 'strategy';
-# strategy is as defined by the implementors of zlib, it describes the input
+# strategy is as defined by the implementors of zlib. It describes the input
# data and modifies the zlib parameters in an attempt to optimize the balance
# between search and huffman encoding in the zlib algorithms. The defaults are
# the zlib.h defaults - the apparently recursive definition does not arise
# because the name of the setting is prefixed by PNG_
#
# The TEXT values are the defaults when writing compressed text (all forms)
-#
-# Include the zlib header too, so that the defaults below are known
+
+# Include the zlib header so that the defaults below are known
@# include <zlib.h>
# The '@' here means to substitute the value when pnglibconf.h is built
setting Z_DEFAULT_COMPRESSION default @Z_DEFAULT_COMPRESSION
+# TODO: why aren't these Z_RLE; zlib.h says that Z_RLE, specifically, is
+# appropriate for PNG images, maybe it doesn't exist in all versions?
setting Z_DEFAULT_STRATEGY default @Z_FILTERED
setting Z_DEFAULT_NOFILTER_STRATEGY default @Z_DEFAULT_STRATEGY
setting ZLIB_VERNUM default @ZLIB_VERNUM
+# Linkage of:
+#
+# API: libpng API functions
+# CALLBACK: internal non-file-local callbacks
+# FUNCTION: internal non-file-local functions
+# DATA: internal non-file-local (const) data
+setting LINKAGE_API default extern
+setting LINKAGE_CALLBACK default extern
+setting LINKAGE_FUNCTION default extern
+setting LINKAGE_DATA default extern
+
setting TEXT_Z_DEFAULT_COMPRESSION default @Z_DEFAULT_COMPRESSION
setting TEXT_Z_DEFAULT_STRATEGY default @Z_DEFAULT_STRATEGY
+# Default to using the read macros
+
+setting DEFAULT_READ_MACROS default 1
+
# The alternative is to call functions to read PNG values, if
# the functions are turned *off* the read macros must always
# be enabled, so turning this off will actually force the
option READ_INT_FUNCTIONS requires READ
-# The same for write, but these can only be switched off if
-# no writing is required at all - hence the use of an 'enables'
-# not a 'requires' below:
+# The same for write but these can only be switched off if no writing
+# is required at all - hence the use of a 'disabled', not a 'requires'.
+# If these are needed, they are enabled in the 'WRITE options' section
+# below.
option WRITE_INT_FUNCTIONS disabled
-option WRITE enables WRITE_INT_FUNCTIONS
# Error controls
#
option MNG_FEATURES
# Arithmetic options, the first is the big switch that chooses between internal
-# floating and fixed point arithmetic implementations - it does not affect an
+# floating and fixed point arithmetic implementations - it does not affect any
# APIs. The second two (the _POINT settings) switch off individual APIs.
#
# Prior to libpng 1.6.8 one of the API (_POINT) variants had to be selected. At
option IO_STATE
-# This is only for PowerPC big-endian and 680x0 systems
-# some testing, not enabled by default.
-# NO LONGER USED
-
-#option READ_BIG_ENDIAN disabled
+# Libpng limits: limit the size of images and data on read.
+#
+# If this option is disabled all the limit checking code will be disabled:
-# Allow users to control limits on what the READ code will
-# read:
+option USER_LIMITS requires READ
-# Added at libpng-1.2.43; adds limit fields to png_struct,
-# allows some usages of these fields
+# The default settings given below for the limits mean that libpng will
+# limit the size of images or the size of data in ancilliary chunks to less
+# than the specification or implementation limits. Settings have the
+# following interpretations:
+#
+# USER_WIDTH_MAX: maximum width of an image that will be read
+# USER_HEIGHT_MAX: maximum height
+# USER_CHUNK_MALLOC_MAX: maximum in-memory (decompressed) size of a single chunk
+# USER_CHUNK_CACHE_MAX: maximum number of chunks to be cached
+#
+# Only chunks that are variable in number are counted towards the
-option USER_LIMITS
+# Use 0x7fffffff for unlimited
+setting USER_WIDTH_MAX default 1000000
+setting USER_HEIGHT_MAX default 1000000
-# Added at libpng-1.2.6; adds setting APIs, allows additional
-# usage of this field (UTSL)
+# Use 0 for unlimited
+setting USER_CHUNK_CACHE_MAX default 1000
+setting USER_CHUNK_MALLOC_MAX default 8000000
+# If this option is enabled APIs to set the above limits at run time are added;
+# without this the hardwired (compile time) limits will be used.
option SET_USER_LIMITS requires USER_LIMITS
-# Feature added at libpng-1.4.0, this flag added at 1.4.1
-option SET_USER_LIMITS enables SET_CHUNK_CACHE_LIMIT
-# Feature added at libpng-1.4.1, this flag added at 1.4.1
-
-option SET_USER_LIMITS enables SET_CHUNK_MALLOC_LIMIT
-
-# Libpng limits.
-#
-# If these settings are *not* set libpng will not limit the size of
-# images or the size of data in ancilliary chunks. This does lead to
-# security issues if PNG files come from untrusted sources.
-setting USER_WIDTH_MAX
-setting USER_HEIGHT_MAX
-setting USER_CHUNK_CACHE_MAX
-setting USER_CHUNK_MALLOC_MAX
-
-# To default all these settings to values that are large but probably
-# safe turn the SAFE_LIMITS option on; this will cause the value in
-# pngpriv.h to be used. Individual values can also be set, simply set
-# them in pngusr.dfa with '@#define PNG_setting value' lines.
-option SAFE_LIMITS enables USER_LIMITS disabled
-= SAFE_LIMITS SAFE_LIMITS
-
# All of the following options relate to code capabilities for
# processing image data before creating a PNG or after reading one.
# You can remove these capabilities safely and still be PNG
# WRITE options
-option WRITE
+option WRITE enables WRITE_INT_FUNCTIONS
# Disabling WRITE_16BIT prevents 16-bit PNG files from being
# generated.
option WRITE_INTERLACING requires WRITE
-# The following depends, internally, on WEIGHT_SHIFT and COST_SHIFT
-# where are set below.
-
+# Deprecated, will be removed.
option WRITE_WEIGHTED_FILTER requires WRITE
option WRITE_FLUSH requires WRITE
# non-IDAT chunks (zTXt, iTXt, iCCP, and unknown chunks). This feature
# was added at libpng-1.5.3.
option WRITE_CUSTOMIZE_ZTXT_COMPRESSION requires WRITE
+option WRITE_CUSTOMIZE_COMPRESSION requires WRITE
# Any chunks you are not interested in, you can undef here. The
# ones that allocate memory may be expecially important (hIST,
# are only interested in 8 bits anyway. Increasing this value
# results in more memory being used, and more pow() functions
# being called to fill in the gamma tables. Don't set this value
-# less then 8, and even that may not work (I haven't tested it).
+# less than 8, and even that may not work (I haven't tested it).
setting MAX_GAMMA_8 default 11
setting GAMMA_THRESHOLD_FIXED default 5000
-# Scaling factor for filter heuristic weighting calculations
-
-setting WEIGHT_SHIFT default 8
-setting COST_SHIFT default 3
-
# Precision to use when converting a floating point value to a PNG
# extension format string in an sCAL chunk (only relevant if the
# floating point API is enabled)
chunk gAMA enables GAMMA
chunk hIST
chunk iCCP enables COLORSPACE, GAMMA
-chunk iTXt
+chunk iTXt enables TEXT
chunk oFFs
chunk pCAL
chunk pHYs
chunk tEXt requires TEXT
chunk tIME
chunk tRNS
-chunk zTXt
+chunk zTXt enables TEXT
# This only affects support of the optional PLTE chunk in RGB and RGBA
# images. Notice that READ_ANCILLARY_CHUNKS therefore disables part
option WRITE_OPTIMIZE_CMF requires WRITE
option READ_COMPRESSED_TEXT disabled
+option READ_iCCP enables READ_COMPRESSED_TEXT
option READ_iTXt enables READ_COMPRESSED_TEXT
option READ_zTXt enables READ_COMPRESSED_TEXT
-option READ_COMPRESSED_TEXT enables READ_TEXT
option WRITE_oFFs enables SAVE_INT_32
option WRITE_pCAL enables SAVE_INT_32
option WRITE_iCCP enables WRITE_COMPRESSED_TEXT
option WRITE_iTXt enables WRITE_COMPRESSED_TEXT
option WRITE_zTXt enables WRITE_COMPRESSED_TEXT
-option WRITE_COMPRESSED_TEXT enables WRITE_TEXT
# Turn this off to disable png_read_png() and png_write_png() and
# leave the row_pointers member out of the info structure.
-/* libpng 1.6.13 STANDARD API DEFINITION */
+/* libpng 1.6.21 STANDARD API DEFINITION */
/* pnglibconf.h - library build configuration */
-/* Libpng version 1.6.13 - August 21, 2014 */
+/* Libpng version 1.6.21 - January 15, 2016 */
-/* Copyright (c) 1998-2014 Glenn Randers-Pehrson */
+/* Copyright (c) 1998-2015 Glenn Randers-Pehrson */
/* This code is released under the libpng license. */
/* For conditions of distribution and use, see the disclaimer */
#define PNG_READ_tIME_SUPPORTED
#define PNG_READ_tRNS_SUPPORTED
#define PNG_READ_zTXt_SUPPORTED
-/*#undef PNG_SAFE_LIMITS_SUPPORTED*/
#define PNG_SAVE_INT_32_SUPPORTED
#define PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_SEQUENTIAL_READ_SUPPORTED
#define PNG_SETJMP_SUPPORTED
-#define PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED
-#define PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
#define PNG_SET_OPTION_SUPPORTED
#define PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
#define PNG_SET_USER_LIMITS_SUPPORTED
#define PNG_WRITE_BGR_SUPPORTED
#define PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
#define PNG_WRITE_COMPRESSED_TEXT_SUPPORTED
+#define PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED
#define PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED
#define PNG_WRITE_FILLER_SUPPORTED
#define PNG_WRITE_FILTER_SUPPORTED
/* end of options */
/* settings */
#define PNG_API_RULE 0
-#define PNG_COST_SHIFT 3
#define PNG_DEFAULT_READ_MACROS 1
#define PNG_GAMMA_THRESHOLD_FIXED 5000
#define PNG_IDAT_READ_SIZE PNG_ZBUF_SIZE
#define PNG_INFLATE_BUF_SIZE 1024
+#define PNG_LINKAGE_API extern
+#define PNG_LINKAGE_CALLBACK extern
+#define PNG_LINKAGE_DATA extern
+#define PNG_LINKAGE_FUNCTION extern
#define PNG_MAX_GAMMA_8 11
#define PNG_QUANTIZE_BLUE_BITS 5
#define PNG_QUANTIZE_GREEN_BITS 5
#define PNG_QUANTIZE_RED_BITS 5
#define PNG_TEXT_Z_DEFAULT_COMPRESSION (-1)
#define PNG_TEXT_Z_DEFAULT_STRATEGY 0
-#define PNG_WEIGHT_SHIFT 8
+#define PNG_USER_CHUNK_CACHE_MAX 1000
+#define PNG_USER_CHUNK_MALLOC_MAX 8000000
+#define PNG_USER_HEIGHT_MAX 1000000
+#define PNG_USER_WIDTH_MAX 1000000
#define PNG_ZBUF_SIZE 8192
#define PNG_ZLIB_VERNUM 0 /* unknown */
#define PNG_Z_DEFAULT_COMPRESSION (-1)
$(MOVE) pnglibconf.tmp $@
clean-pnglibconf:
- $(DELETE) pnglibconf.*
+ $(DELETE) pnglibconf.h pnglibconf.c pnglibconf.out pnglibconf.pre \
+ pnglibconf.dfn
clean: clean-pnglibconf
-/* prefix.dfn - generate an unprefixed symbol list
+/* prefix.c - generate an unprefixed symbol list
*
- * Last changed in libpng version 1.6.0 [January 30, 2012]
- * Copyright (c) 2012 Glenn Randers-Pehrson
+ * Last changed in libpng version 1.6.16 [December 22, 2014]
+ * Copyright (c) 2013-2014 Glenn Randers-Pehrson
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
-/* sym.dfn - define format of libpng.sym
+/* sym.c - define format of libpng.sym
*
- * Last changed in libpng version 1.5.0 [January 6, 2011]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Last changed in libpng version 1.6.16 [December 22, 2014]
+ * Copyright (c) 2011-2014 Glenn Randers-Pehrson
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
-/* symbols.dfn - find all exported symbols
+/* symbols.c - find all exported symbols
*
- * Last changed in libpng version 1.5.0 [January 6, 2011]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Last changed in libpng version 1.6.16 [December 22, 2014]
+ * Copyright (c) 2011-2014 Glenn Randers-Pehrson
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
-;Version 1.6.13
+;Version 1.6.21
;--------------------------------------------------------------
; LIBPNG symbol list as a Win32 DEF file
; Contains all the symbols that can be exported from libpng
-/* vers.dfn - define format of libpng.vers
+/* vers.c - define format of libpng.vers
*
- * Last changed in libpng version 1.5.0 [January 6, 2011]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Last changed in libpng version 1.6.16 [December 22, 2014]
+ * Copyright (c) 2011-2014 Glenn Randers-Pehrson
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
scriptversion=2013-07-13.22; # UTC
-# Copyright (C) 2011-2013 Free Software Foundation, Inc.
+# Copyright (C) 2011-2014 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# Test script is run here.
"$@" >$log_file 2>&1
estatus=$?
+
if test $enable_hard_errors = no && test $estatus -eq 99; then
- estatus=1
+ tweaked_estatus=1
+else
+ tweaked_estatus=$estatus
fi
-case $estatus:$expect_failure in
+case $tweaked_estatus:$expect_failure in
0:yes) col=$red res=XPASS recheck=yes gcopy=yes;;
0:*) col=$grn res=PASS recheck=no gcopy=no;;
77:*) col=$blu res=SKIP recheck=no gcopy=yes;;
*:*) col=$red res=FAIL recheck=yes gcopy=yes;;
esac
+# Report the test outcome and exit status in the logs, so that one can
+# know whether the test passed or failed simply by looking at the '.log'
+# file, without the need of also peaking into the corresponding '.trs'
+# file (automake bug#11814).
+echo "$res $test_name (exit status: $estatus)" >>$log_file
+
# Report outcome to console.
echo "${col}${res}${std}: $test_name"
#!/bin/sh
-exec ./pngimage --exhaustive --log "${srcdir}/contrib/pngsuite/"*.png
+exec ./pngimage --exhaustive --list-combos --log "${srcdir}/contrib/pngsuite/"*.png
#!/bin/sh
-exec ./pngimage --log "${srcdir}/contrib/pngsuite/"*.png
+exec ./pngimage --list-combos --log "${srcdir}/contrib/pngsuite/"*.png
#
# Usage:
#
-# tests/pngstest pattern
+# tests/pngstest gamma alpha
#
-# Runs pngstest on all the contrib/pngsuite/[^x]*${pattern}.png files
-# NOTE: pattern is used to name the temporary files pngstest generates
+# Run ./pngstest on the PNG files in $srcdir/contrib/testpngs which have the
+# given gamma and opacity:
#
-pattern="$1"
+# gamma: one of; linear, 1.8, sRGB, none.
+# alpha: one of; opaque, tRNS, alpha, none. 'none' is equivalent to !alpha
+#
+# NOTE: the temporary files pngstest generates have the base name gamma-alpha to
+# avoid issues with make -j
+#
+gamma="$1"
+shift
+alpha="$1"
shift
-exec ./pngstest --strict --tmpfile "${pattern}" --log ${1+"$@"}\
- "${srcdir}/contrib/pngsuite/"[a-wyz]*${pattern}".png"
+exec ./pngstest --tmpfile "${gamma}-${alpha}-" --log ${1+"$@"} `
+ for f in "${srcdir}/contrib/testpngs/"*.png
+ do
+ g=
+ case "$f" in
+ *-linear[.-]*)
+ test "$gamma" = "linear" && g="$f";;
+
+ *-sRGB[.-]*)
+ test "$gamma" = "sRGB" && g="$f";;
+
+ *-1.8[.-]*)
+ test "$gamma" = "1.8" && g="$f";;
+
+ *)
+ test "$gamma" = "none" && g="$f";;
+ esac
+
+ case "$g" in
+ "")
+ :;;
+
+ *-alpha[-.]*)
+ test "$alpha" = "alpha" && echo "$g";;
+
+ *-tRNS[-.]*)
+ test "$alpha" = "tRNS" -o "$alpha" = "none" && echo "$g";;
+
+ *)
+ test "$alpha" = "opaque" -o "$alpha" = "none" && echo "$g";;
+ esac
+ done
+`
--- /dev/null
+#!/bin/sh
+exec "${srcdir}/tests/pngstest" 1.8 none
--- /dev/null
+#!/bin/sh
+exec "${srcdir}/tests/pngstest" 1.8 alpha
--- /dev/null
+#!/bin/sh
+exec "${srcdir}/tests/pngstest" linear none
--- /dev/null
+#!/bin/sh
+exec "${srcdir}/tests/pngstest" linear alpha
--- /dev/null
+#!/bin/sh
+exec "${srcdir}/tests/pngstest" none none
--- /dev/null
+#!/bin/sh
+exec "${srcdir}/tests/pngstest" none alpha
--- /dev/null
+#!/bin/sh
+exec "${srcdir}/tests/pngstest" sRGB none
--- /dev/null
+#!/bin/sh
+exec "${srcdir}/tests/pngstest" sRGB alpha
#!/bin/sh
-exec ./pngunknown default=discard IDAT=save "${srcdir}/pngtest.png"
+exec ./pngunknown --strict default=discard IDAT=save "${srcdir}/pngtest.png"
#!/bin/sh
-exec ./pngunknown default=discard "${srcdir}/pngtest.png"
+exec ./pngunknown --strict default=discard "${srcdir}/pngtest.png"
#!/bin/sh
-exec ./pngunknown default=if-safe "${srcdir}/pngtest.png"
+exec ./pngunknown --strict default=if-safe "${srcdir}/pngtest.png"
#!/bin/sh
-exec ./pngunknown bKGD=save cHRM=save gAMA=save all=discard iCCP=save sBIT=save sRGB=save "${srcdir}/pngtest.png"
+exec ./pngunknown --strict bKGD=save cHRM=save gAMA=save all=discard iCCP=save sBIT=save sRGB=save "${srcdir}/pngtest.png"
#!/bin/sh
-exec ./pngunknown sTER=if-safe "${srcdir}/pngtest.png"
+exec ./pngunknown --strict sTER=if-safe "${srcdir}/pngtest.png"
#!/bin/sh
-exec ./pngunknown default=save "${srcdir}/pngtest.png"
+exec ./pngunknown --strict default=save "${srcdir}/pngtest.png"
#!/bin/sh
-exec ./pngunknown vpAg=if-safe "${srcdir}/pngtest.png"
+exec ./pngunknown --strict vpAg=if-safe "${srcdir}/pngtest.png"
#!/bin/sh
-exec ./pngvalid --gamma-16-to-8
+exec ./pngvalid --strict --gamma-16-to-8
#!/bin/sh
-exec ./pngvalid --gamma-alpha-mode
+exec ./pngvalid --strict --gamma-alpha-mode
#!/bin/sh
-exec ./pngvalid --gamma-background
+exec ./pngvalid --strict --gamma-background
#!/bin/sh
-exec ./pngvalid --gamma-alpha-mode --expand16
+exec ./pngvalid --strict --gamma-alpha-mode --expand16
#!/bin/sh
-exec ./pngvalid --gamma-background --expand16
+exec ./pngvalid --strict --gamma-background --expand16
#!/bin/sh
-exec ./pngvalid --gamma-transform --expand16
+exec ./pngvalid --strict --gamma-transform --expand16
#!/bin/sh
-exec ./pngvalid --gamma-sbit
+exec ./pngvalid --strict --gamma-sbit
#!/bin/sh
-exec ./pngvalid --gamma-threshold
+exec ./pngvalid --strict --gamma-threshold
#!/bin/sh
-exec ./pngvalid --gamma-transform
+exec ./pngvalid --strict --gamma-transform
#!/bin/sh
-exec ./pngvalid --standard --progressive-read --interlace
+exec ./pngvalid --strict --standard --progressive-read --interlace
--- /dev/null
+#!/bin/sh
+exec ./pngvalid --strict --size --progressive-read
#!/bin/sh
-exec ./pngvalid --standard --progressive-read
+exec ./pngvalid --strict --standard --progressive-read
#!/bin/sh
-exec ./pngvalid --standard --progressive-read
+exec ./pngvalid --strict --standard
--- /dev/null
+#!/bin/sh
+exec ./pngvalid --strict --transform
projects / platform / upstream / libpng.git / commitdiff
