-cmake_minimum_required(VERSION 2.4.3)
-set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
-
-if(UNIX AND NOT DEFINED CMAKE_BUILD_TYPE)
- set(CMAKE_BUILD_TYPE "RelWithDebInfo" CACHE STRING
- "Choose the type of build, options are:
- None(CMAKE_CXX_FLAGS or CMAKE_C_FLAGS used)
- Debug
- Release
- RelWithDebInfo
- MinSizeRel.")
-endif()
-
-project(libpng C)
-enable_testing()
-
-# Copyright (C) 2007-2010 Glenn Randers-Pehrson
+# CMakeLists.txt
+
+# Copyright (C) 2018 Cosmin Truta
+# Copyright (C) 2007,2009-2018 Glenn Randers-Pehrson
+# Written by Christian Ehrlicher, 2007
+# Revised by Roger Lowman, 2009-2010
+# Revised by Clifford Yapp, 2011-2012,2017
+# Revised by Roger Leigh, 2016
+# Revised by Andreas Franek, 2016
+# Revised by Sam Serrels, 2017
+# Revised by Vadim Barkov, 2017
+# Revised by Vicky Pfau, 2018
+# Revised by Cameron Cawley, 2018
+# Revised by Cosmin Truta, 2018
+# Revised by Kyle Bentley, 2018
# This code is released under the libpng license.
# For conditions of distribution and use, see the disclaimer
# and license in png.h
+cmake_minimum_required(VERSION 3.1)
+cmake_policy(VERSION 3.1)
+
+project(libpng C ASM)
+enable_testing()
+
set(PNGLIB_MAJOR 1)
-set(PNGLIB_MINOR 2)
-set(PNGLIB_RELEASE 50)
+set(PNGLIB_MINOR 6)
+set(PNGLIB_RELEASE 36)
set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})
+include(GNUInstallDirs)
+
# needed packages
-find_package(ZLIB REQUIRED)
-include_directories(${ZLIB_INCLUDE_DIR})
-
-if(NOT WIN32)
- find_library(M_LIBRARY
- NAMES m
- PATHS /usr/lib /usr/local/lib
- )
- if(NOT M_LIBRARY)
- message(STATUS
- "math library 'libm' not found - floating point support disabled")
- endif()
+
+# Allow users to specify location of Zlib.
+# Useful if zlib is being built alongside this as a sub-project.
+option(PNG_BUILD_ZLIB "Custom zlib Location, else find_package is used" OFF)
+
+if(NOT PNG_BUILD_ZLIB)
+ find_package(ZLIB REQUIRED)
+ include_directories(${ZLIB_INCLUDE_DIR})
+endif()
+
+if(UNIX AND NOT APPLE AND NOT BEOS AND NOT HAIKU)
+ find_library(M_LIBRARY m)
else()
- # not needed on windows
+ # libm is not needed and/or not available
set(M_LIBRARY "")
endif()
# COMMAND LINE OPTIONS
-if(DEFINED PNG_SHARED)
- option(PNG_SHARED "Build shared lib" ${PNG_SHARED})
-else()
- option(PNG_SHARED "Build shared lib" ON)
+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_FRAMEWORK "Build OS X framework" OFF)
+option(PNG_DEBUG "Build with debug output" OFF)
+option(PNG_HARDWARE_OPTIMIZATIONS "Enable hardware optimizations" ON)
+
+set(PNG_PREFIX "" CACHE STRING "Prefix to add to the API function names")
+set(DFA_XTRA "" CACHE FILEPATH "File containing extra configuration settings")
+
+if(PNG_HARDWARE_OPTIMIZATIONS)
+
+# set definitions and sources for arm
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "^arm" OR
+ CMAKE_SYSTEM_PROCESSOR MATCHES "^aarch64")
+ set(PNG_ARM_NEON_POSSIBLE_VALUES check on off)
+ set(PNG_ARM_NEON "check" CACHE STRING "Enable ARM NEON optimizations:
+ check: (default) use internal checking code;
+ off: disable the optimizations;
+ on: turn on unconditionally.")
+ set_property(CACHE PNG_ARM_NEON PROPERTY STRINGS
+ ${PNG_ARM_NEON_POSSIBLE_VALUES})
+ list(FIND PNG_ARM_NEON_POSSIBLE_VALUES ${PNG_ARM_NEON} index)
+ if(index EQUAL -1)
+ message(FATAL_ERROR
+ "PNG_ARM_NEON must be one of [${PNG_ARM_NEON_POSSIBLE_VALUES}]")
+ elseif(NOT ${PNG_ARM_NEON} STREQUAL "off")
+ set(libpng_arm_sources
+ arm/arm_init.c
+ arm/filter_neon.S
+ arm/filter_neon_intrinsics.c
+ arm/palette_neon_intrinsics.c)
+
+ if(${PNG_ARM_NEON} STREQUAL "on")
+ add_definitions(-DPNG_ARM_NEON_OPT=2)
+ elseif(${PNG_ARM_NEON} STREQUAL "check")
+ add_definitions(-DPNG_ARM_NEON_CHECK_SUPPORTED)
+ endif()
+ else()
+ add_definitions(-DPNG_ARM_NEON_OPT=0)
+ endif()
endif()
-if(DEFINED PNG_STATIC)
- option(PNG_STATIC "Build static lib" ${PNG_STATIC})
-else()
- option(PNG_STATIC "Build static lib" ON)
+
+# set definitions and sources for powerpc
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "^powerpc*" OR
+ CMAKE_SYSTEM_PROCESSOR MATCHES "^ppc64*")
+ set(PNG_POWERPC_VSX_POSSIBLE_VALUES on off)
+ set(PNG_POWERPC_VSX "on" CACHE STRING "Enable POWERPC VSX optimizations:
+ off: disable the optimizations.")
+ set_property(CACHE PNG_POWERPC_VSX PROPERTY STRINGS
+ ${PNG_POWERPC_VSX_POSSIBLE_VALUES})
+ list(FIND PNG_POWERPC_VSX_POSSIBLE_VALUES ${PNG_POWERPC_VSX} index)
+ if(index EQUAL -1)
+ message(FATAL_ERROR
+ "PNG_POWERPC_VSX must be one of [${PNG_POWERPC_VSX_POSSIBLE_VALUES}]")
+ elseif(NOT ${PNG_POWERPC_VSX} STREQUAL "off")
+ set(libpng_powerpc_sources
+ powerpc/powerpc_init.c
+ powerpc/filter_vsx_intrinsics.c)
+ if(${PNG_POWERPC_VSX} STREQUAL "on")
+ add_definitions(-DPNG_POWERPC_VSX_OPT=2)
+ endif()
+ else()
+ add_definitions(-DPNG_POWERPC_VSX_OPT=0)
+ endif()
endif()
-if(MINGW)
- option(PNG_TESTS "Build pngtest" NO)
-else()
- option(PNG_TESTS "Build pngtest" YES)
+# set definitions and sources for intel
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "^i?86" OR
+ CMAKE_SYSTEM_PROCESSOR MATCHES "^x86_64*")
+ set(PNG_INTEL_SSE_POSSIBLE_VALUES on off)
+ set(PNG_INTEL_SSE "on" CACHE STRING "Enable INTEL_SSE optimizations:
+ off: disable the optimizations")
+ set_property(CACHE PNG_INTEL_SSE PROPERTY STRINGS
+ ${PNG_INTEL_SSE_POSSIBLE_VALUES})
+ list(FIND PNG_INTEL_SSE_POSSIBLE_VALUES ${PNG_INTEL_SSE} index)
+ if(index EQUAL -1)
+ message(FATAL_ERROR
+ "PNG_INTEL_SSE must be one of [${PNG_INTEL_SSE_POSSIBLE_VALUES}]")
+ elseif(NOT ${PNG_INTEL_SSE} STREQUAL "off")
+ set(libpng_intel_sources
+ intel/intel_init.c
+ intel/filter_sse2_intrinsics.c)
+ if(${PNG_INTEL_SSE} STREQUAL "on")
+ add_definitions(-DPNG_INTEL_SSE_OPT=1)
+ endif()
+ else()
+ add_definitions(-DPNG_INTEL_SSE_OPT=0)
+ endif()
endif()
-option(PNG_NO_CONSOLE_IO "FIXME" YES)
-option(PNG_NO_STDIO "FIXME" YES)
-option(PNG_DEBUG "Build with debug output" NO)
-option(PNGARG "FIXME" YES)
-#TODO:
-# PNG_CONSOLE_IO_SUPPORTED
-
-# maybe needs improving, but currently I don't know when we can enable what :)
-set(png_asm_tmp "OFF")
-if(NOT WIN32)
- find_program(uname_executable NAMES uname PATHS /bin /usr/bin /usr/local/bin)
- if(uname_executable)
- exec_program(${uname_executable}
- ARGS --machine OUTPUT_VARIABLE uname_output)
- if("uname_output" MATCHES "^.*i[1-9]86.*$")
- set(png_asm_tmp "ON")
- else("uname_output" MATCHES "^.*i[1-9]86.*$")
- set(png_asm_tmp "OFF")
- endif("uname_output" MATCHES "^.*i[1-9]86.*$")
- endif(uname_executable)
-else()
- # this env var is normally only set on win64
- set(TEXT "ProgramFiles(x86)")
- if("$ENV{${TEXT}}" STREQUAL "")
- set(png_asm_tmp "ON")
- endif("$ENV{${TEXT}}" STREQUAL "")
+# set definitions and sources for MIPS
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "mipsel*" OR
+ CMAKE_SYSTEM_PROCESSOR MATCHES "mips64el*")
+ set(PNG_MIPS_MSA_POSSIBLE_VALUES on off)
+ set(PNG_MIPS_MSA "on" CACHE STRING "Enable MIPS_MSA optimizations:
+ off: disable the optimizations")
+ set_property(CACHE PNG_MIPS_MSA PROPERTY STRINGS
+ ${PNG_MIPS_MSA_POSSIBLE_VALUES})
+ list(FIND PNG_MIPS_MSA_POSSIBLE_VALUES ${PNG_MIPS_MSA} index)
+ if(index EQUAL -1)
+ message(FATAL_ERROR
+ "PNG_MIPS_MSA must be one of [${PNG_MIPS_MSA_POSSIBLE_VALUES}]")
+ elseif(NOT ${PNG_MIPS_MSA} STREQUAL "off")
+ set(libpng_mips_sources
+ mips/mips_init.c
+ mips/filter_msa_intrinsics.c)
+ if(${PNG_MIPS_MSA} STREQUAL "on")
+ add_definitions(-DPNG_MIPS_MSA_OPT=2)
+ endif()
+ else()
+ add_definitions(-DPNG_MIPS_MSA_OPT=0)
+ endif()
+endif()
+
+else(PNG_HARDWARE_OPTIMIZATIONS)
+
+# set definitions and sources for arm
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "^arm" OR
+ CMAKE_SYSTEM_PROCESSOR MATCHES "^aarch64")
+ add_definitions(-DPNG_ARM_NEON_OPT=0)
+endif()
+
+# set definitions and sources for powerpc
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "^powerpc*" OR
+ CMAKE_SYSTEM_PROCESSOR MATCHES "^ppc64*")
+ add_definitions(-DPNG_POWERPC_VSX_OPT=0)
+endif()
+
+# set definitions and sources for intel
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "^i?86" OR
+ CMAKE_SYSTEM_PROCESSOR MATCHES "^x86_64*")
+ add_definitions(-DPNG_INTEL_SSE_OPT=0)
+endif()
+
+# set definitions and sources for MIPS
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "mipsel*" OR
+ CMAKE_SYSTEM_PROCESSOR MATCHES "mips64el*")
+ add_definitions(-DPNG_MIPS_MSA_OPT=0)
endif()
+endif(PNG_HARDWARE_OPTIMIZATIONS)
+
# SET LIBNAME
set(PNG_LIB_NAME png${PNGLIB_MAJOR}${PNGLIB_MINOR})
# to distinguish between debug and release lib
set(CMAKE_DEBUG_POSTFIX "d")
+include(CheckCSourceCompiles)
+option(ld-version-script "Enable linker version script" ON)
+if(ld-version-script AND NOT APPLE)
+ # Check if LD supports linker scripts.
+ file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map" "VERS_1 {
+ global: sym;
+ local: *;
+};
+
+VERS_2 {
+ global: sym2;
+ main;
+} VERS_1;
+")
+ set(CMAKE_REQUIRED_FLAGS_SAVE ${CMAKE_REQUIRED_FLAGS})
+ set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS} "-Wl,--version-script='${CMAKE_CURRENT_BINARY_DIR}/conftest.map'")
+ check_c_source_compiles("void sym(void) {}
+void sym2(void) {}
+int main(void) {return 0;}
+" HAVE_LD_VERSION_SCRIPT)
+ if(NOT HAVE_LD_VERSION_SCRIPT)
+ set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_SAVE} "-Wl,-M -Wl,${CMAKE_CURRENT_BINARY_DIR}/conftest.map")
+ check_c_source_compiles("void sym(void) {}
+void sym2(void) {}
+int main(void) {return 0;}
+" HAVE_SOLARIS_LD_VERSION_SCRIPT)
+ endif()
+ set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_SAVE})
+ file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map")
+endif()
+
+# Find symbol prefix. Likely obsolete and unnecessary with recent
+# toolchains (it's not done in many other projects).
+function(symbol_prefix)
+ set(SYMBOL_PREFIX)
+
+ execute_process(COMMAND "${CMAKE_C_COMPILER}" "-E" "-"
+ INPUT_FILE /dev/null
+ OUTPUT_VARIABLE OUT
+ RESULT_VARIABLE STATUS)
+
+ if(CPP_FAIL)
+ message(WARNING "Failed to run the C preprocessor")
+ endif()
+
+ string(REPLACE "\n" ";" OUT "${OUT}")
+ foreach(line ${OUT})
+ string(REGEX MATCH "^PREFIX=" found_match "${line}")
+ if(found_match)
+ string(REGEX REPLACE "^PREFIX=(.*\)" "\\1" prefix "${line}")
+ string(REGEX MATCH "__USER_LABEL_PREFIX__" found_match "${prefix}")
+ if(found_match)
+ string(REGEX REPLACE "(.*)__USER_LABEL_PREFIX__(.*)" "\\1\\2" prefix "${prefix}")
+ endif()
+ set(SYMBOL_PREFIX "${prefix}")
+ endif()
+ endforeach()
+
+ message(STATUS "Symbol prefix: ${SYMBOL_PREFIX}")
+ set(SYMBOL_PREFIX "${SYMBOL_PREFIX}" PARENT_SCOPE)
+endfunction()
+
+if(UNIX)
+ symbol_prefix()
+endif()
+
+find_program(AWK NAMES gawk awk)
+
+include_directories(${CMAKE_CURRENT_BINARY_DIR})
+
+if(NOT AWK OR ANDROID)
+ # No awk available to generate sources; use pre-built pnglibconf.h
+ configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt
+ ${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h)
+ add_custom_target(genfiles) # Dummy
+else()
+ include(CMakeParseArguments)
+ # Generate .chk from .out with awk
+ # generate_chk(INPUT inputfile OUTPUT outputfile [DEPENDS dep1 [dep2...]])
+ function(generate_chk)
+ set(options)
+ set(oneValueArgs INPUT OUTPUT)
+ set(multiValueArgs DEPENDS)
+ cmake_parse_arguments(_GC "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+ if(NOT _GC_INPUT)
+ message(FATAL_ERROR "generate_chk: Missing INPUT argument")
+ endif()
+ if(NOT _GC_OUTPUT)
+ message(FATAL_ERROR "generate_chk: Missing OUTPUT argument")
+ endif()
+
+ add_custom_command(OUTPUT "${_GC_OUTPUT}"
+ COMMAND "${CMAKE_COMMAND}"
+ "-DINPUT=${_GC_INPUT}"
+ "-DOUTPUT=${_GC_OUTPUT}"
+ -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/genchk.cmake"
+ DEPENDS "${_GC_INPUT}" ${_GC_DEPENDS}
+ WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
+ endfunction()
+
+ # Generate .out from .c with awk
+ # generate_out(INPUT inputfile OUTPUT outputfile [DEPENDS dep1 [dep2...]])
+ function(generate_out)
+ set(options)
+ set(oneValueArgs INPUT OUTPUT)
+ set(multiValueArgs DEPENDS)
+ cmake_parse_arguments(_GO "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+ if(NOT _GO_INPUT)
+ message(FATAL_ERROR "generate_out: Missing INPUT argument")
+ endif()
+ if(NOT _GO_OUTPUT)
+ message(FATAL_ERROR "generate_out: Missing OUTPUT argument")
+ endif()
+
+ add_custom_command(OUTPUT "${_GO_OUTPUT}"
+ COMMAND "${CMAKE_COMMAND}"
+ "-DINPUT=${_GO_INPUT}"
+ "-DOUTPUT=${_GO_OUTPUT}"
+ -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/genout.cmake"
+ DEPENDS "${_GO_INPUT}" ${_GO_DEPENDS}
+ WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
+ endfunction()
+
+ # Generate specific source file with awk
+ # generate_source(OUTPUT outputfile [DEPENDS dep1 [dep2...]])
+ function(generate_source)
+ set(options)
+ set(oneValueArgs OUTPUT)
+ set(multiValueArgs DEPENDS)
+ cmake_parse_arguments(_GSO "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+ if(NOT _GSO_OUTPUT)
+ message(FATAL_ERROR "generate_source: Missing OUTPUT argument")
+ endif()
+
+ add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${_GSO_OUTPUT}"
+ COMMAND "${CMAKE_COMMAND}"
+ "-DOUTPUT=${_GSO_OUTPUT}"
+ -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/gensrc.cmake"
+ DEPENDS ${_GSO_DEPENDS}
+ WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
+ endfunction()
+
+ # Copy file
+ function(generate_copy source destination)
+ add_custom_command(OUTPUT "${destination}"
+ COMMAND "${CMAKE_COMMAND}" -E remove "${destination}"
+ COMMAND "${CMAKE_COMMAND}" -E copy "${source}"
+ "${destination}"
+ DEPENDS "${source}")
+ endfunction()
+
+ # Generate scripts/pnglibconf.h
+ generate_source(OUTPUT "scripts/pnglibconf.c"
+ DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.dfa"
+ "${CMAKE_CURRENT_SOURCE_DIR}/scripts/options.awk"
+ "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h")
+
+ # Generate pnglibconf.c
+ generate_source(OUTPUT "pnglibconf.c"
+ DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.dfa"
+ "${CMAKE_CURRENT_SOURCE_DIR}/scripts/options.awk"
+ "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h")
+
+ if(PNG_PREFIX)
+ set(PNGLIBCONF_H_EXTRA_DEPENDS
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out"
+ "${CMAKE_CURRENT_SOURCE_DIR}/scripts/macro.lst")
+ set(PNGPREFIX_H_EXTRA_DEPENDS
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out")
+ endif()
+
+ generate_out(INPUT "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.c"
+ OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out")
+
+ # Generate pnglibconf.h
+ generate_source(OUTPUT "pnglibconf.h"
+ DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out"
+ ${PNGLIBCONF_H_EXTRA_DEPENDS})
+
+ generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/intprefix.c"
+ OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out"
+ DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h")
+
+ generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/prefix.c"
+ OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out"
+ DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/png.h"
+ "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h"
+ "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out")
+
+ # Generate pngprefix.h
+ generate_source(OUTPUT "pngprefix.h"
+ DEPENDS ${PNGPREFIX_H_EXTRA_DEPENDS})
+
+ generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/sym.c"
+ OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out"
+ DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h")
+
+ generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/symbols.c"
+ OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out"
+ DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/png.h"
+ "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h"
+ "${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt")
+
+ generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/vers.c"
+ OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out"
+ DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/png.h"
+ "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h"
+ "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h")
+
+ generate_chk(INPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out"
+ OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk"
+ DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/scripts/checksym.awk"
+ "${CMAKE_CURRENT_SOURCE_DIR}/scripts/symbols.def")
+
+ add_custom_target(symbol-check DEPENDS
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk")
+
+ generate_copy("${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out"
+ "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym")
+ generate_copy("${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out"
+ "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers")
+
+ add_custom_target(genvers DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers")
+ add_custom_target(gensym DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym")
+
+ add_custom_target("genprebuilt"
+ COMMAND "${CMAKE_COMMAND}"
+ "-DOUTPUT=scripts/pnglibconf.h.prebuilt"
+ -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/gensrc.cmake"
+ WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
+
+ # A single target handles generation of all generated files. If
+ # they are depended upon separately by multiple targets, this
+ # confuses parallel make (it would require a separate top-level
+ # target for each file to track the dependencies properly).
+ add_custom_target(genfiles DEPENDS
+ "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym"
+ "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers"
+ "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.c"
+ "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h"
+ "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out"
+ "${CMAKE_CURRENT_BINARY_DIR}/pngprefix.h"
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out"
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/pnglibconf.c"
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out"
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out"
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk"
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out"
+ "${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out")
+endif(NOT AWK OR ANDROID)
# OUR SOURCES
-set(libpng_sources
+set(libpng_public_hdrs
png.h
pngconf.h
+ "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h"
+)
+set(libpng_private_hdrs
+ pngpriv.h
+ pngdebug.h
+ pnginfo.h
+ pngstruct.h
+)
+if(AWK AND NOT ANDROID)
+ list(APPEND libpng_private_hdrs "${CMAKE_CURRENT_BINARY_DIR}/pngprefix.h")
+endif()
+set(libpng_sources
+ ${libpng_public_hdrs}
+ ${libpng_private_hdrs}
png.c
pngerror.c
pngget.c
pngwrite.c
pngwtran.c
pngwutil.c
+ ${libpng_arm_sources}
+ ${libpng_intel_sources}
+ ${libpng_mips_sources}
+ ${libpng_powerpc_sources}
)
set(pngtest_sources
pngtest.c
)
-# SOME NEEDED DEFINITIONS
-
-add_definitions(-DPNG_CONFIGURE_LIBPNG)
-
-if(_AIX)
- add_definitions(-D_ALL_SOURCE)
-endif(_AIX)
+set(pngvalid_sources
+ contrib/libtests/pngvalid.c
+)
+set(pngstest_sources
+ contrib/libtests/pngstest.c
+)
+set(pngunknown_sources
+ contrib/libtests/pngunknown.c
+)
+set(pngimage_sources
+ contrib/libtests/pngimage.c
+)
+set(pngfix_sources
+ contrib/tools/pngfix.c
+)
+set(png_fix_itxt_sources
+ contrib/tools/png-fix-itxt.c
+)
if(MSVC)
- add_definitions(-DPNG_NO_MODULEDEF -D_CRT_SECURE_NO_DEPRECATE)
-endif(MSVC)
-
-if(PNG_SHARED OR NOT MSVC)
- #if building msvc static this has NOT to be defined
- add_definitions(-DZLIB_DLL)
-endif()
-
-add_definitions(-DLIBPNG_NO_MMX)
-add_definitions(-DPNG_NO_MMX_CODE)
-
-
-if(PNG_CONSOLE_IO_SUPPORTED)
- add_definitions(-DPNG_CONSOLE_IO_SUPPORTED)
-endif()
-
-if(PNG_NO_CONSOLE_IO)
- add_definitions(-DPNG_NO_CONSOLE_IO)
-endif()
-
-if(PNG_NO_STDIO)
- add_definitions(-DPNG_NO_STDIO)
+ add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
endif()
if(PNG_DEBUG)
add_definitions(-DPNG_DEBUG)
endif()
-if(NOT M_LIBRARY AND NOT WIN32)
- add_definitions(-DPNG_NO_FLOATING_POINT_SUPPORTED)
-endif()
-
# NOW BUILD OUR TARGET
include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${ZLIB_INCLUDE_DIR})
+unset(PNG_LIB_TARGETS)
+
if(PNG_SHARED)
- add_library(${PNG_LIB_NAME} SHARED ${libpng_sources})
+ add_library(png SHARED ${libpng_sources})
+ set(PNG_LIB_TARGETS png)
+ set_target_properties(png PROPERTIES OUTPUT_NAME ${PNG_LIB_NAME})
+ add_dependencies(png genfiles)
if(MSVC)
# msvc does not append 'lib' - do it here to have consistent name
- set_target_properties(${PNG_LIB_NAME} PROPERTIES PREFIX "lib")
+ set_target_properties(png PROPERTIES PREFIX "lib")
+ set_target_properties(png PROPERTIES IMPORT_PREFIX "lib")
+ endif()
+ target_link_libraries(png ${ZLIB_LIBRARY} ${M_LIBRARY})
+
+ if(UNIX AND AWK)
+ if(HAVE_LD_VERSION_SCRIPT)
+ set_target_properties(png PROPERTIES LINK_FLAGS
+ "-Wl,--version-script='${CMAKE_CURRENT_BINARY_DIR}/libpng.vers'")
+ elseif(HAVE_SOLARIS_LD_VERSION_SCRIPT)
+ set_target_properties(png PROPERTIES LINK_FLAGS
+ "-Wl,-M -Wl,'${CMAKE_CURRENT_BINARY_DIR}/libpng.vers'")
+ endif()
endif()
- target_link_libraries(${PNG_LIB_NAME} ${ZLIB_LIBRARY} ${M_LIBRARY})
endif()
if(PNG_STATIC)
-# does not work without changing name
- set(PNG_LIB_NAME_STATIC ${PNG_LIB_NAME}_static)
- add_library(${PNG_LIB_NAME_STATIC} STATIC ${libpng_sources})
+ # does not work without changing name
+ set(PNG_LIB_NAME_STATIC png_static)
+ add_library(png_static STATIC ${libpng_sources})
+ add_dependencies(png_static genfiles)
+ # MSVC doesn't use a different file extension for shared vs. static
+ # libs. We are able to change OUTPUT_NAME to remove the _static
+ # for all other platforms.
+ if(NOT MSVC)
+ set_target_properties(png_static PROPERTIES
+ OUTPUT_NAME "${PNG_LIB_NAME}"
+ CLEAN_DIRECT_OUTPUT 1)
+ else()
+ set_target_properties(png_static PROPERTIES
+ OUTPUT_NAME "${PNG_LIB_NAME}_static"
+ CLEAN_DIRECT_OUTPUT 1)
+ endif()
+ list(APPEND PNG_LIB_TARGETS png_static)
if(MSVC)
# msvc does not append 'lib' - do it here to have consistent name
- set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES PREFIX "lib")
+ set_target_properties(png_static PROPERTIES PREFIX "lib")
endif()
+ target_link_libraries(png_static ${ZLIB_LIBRARY} ${M_LIBRARY})
endif()
+if(PNG_FRAMEWORK)
+ set(PNG_LIB_NAME_FRAMEWORK png_framework)
+ add_library(png_framework SHARED ${libpng_sources})
+ add_dependencies(png_framework genfiles)
+ list(APPEND PNG_LIB_TARGETS png_framework)
+ set_target_properties(png_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_framework ${ZLIB_LIBRARY} ${M_LIBRARY})
+endif()
+
+if(NOT PNG_LIB_TARGETS)
+ message(SEND_ERROR
+ "No library variant selected to build. "
+ "Please enable at least one of the following options: "
+ "PNG_STATIC, PNG_SHARED, PNG_FRAMEWORK")
+endif()
if(PNG_SHARED AND WIN32)
- set_target_properties(${PNG_LIB_NAME} PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL)
+ set_target_properties(png PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL)
endif()
+function(png_add_test)
+ set(options)
+ set(oneValueArgs NAME COMMAND)
+ set(multiValueArgs OPTIONS FILES)
+ cmake_parse_arguments(_PAT "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+
+ if(NOT _PAT_NAME)
+ message(FATAL_ERROR "png_add_test: Missing NAME argument")
+ endif()
+ if(NOT _PAT_COMMAND)
+ message(FATAL_ERROR "png_add_test: Missing COMMAND argument")
+ endif()
+
+ set(TEST_OPTIONS "${_PAT_OPTIONS}")
+ set(TEST_FILES "${_PAT_FILES}")
+
+ configure_file("${CMAKE_CURRENT_SOURCE_DIR}/scripts/test.cmake.in"
+ "${CMAKE_CURRENT_BINARY_DIR}/tests/${_PAT_NAME}.cmake" @ONLY)
+ add_test(NAME "${_PAT_NAME}"
+ COMMAND "${CMAKE_COMMAND}"
+ "-DLIBPNG=$<TARGET_FILE:png>"
+ "-DTEST_COMMAND=$<TARGET_FILE:${_PAT_COMMAND}>"
+ -P "${CMAKE_CURRENT_BINARY_DIR}/tests/${_PAT_NAME}.cmake")
+endfunction()
+
if(PNG_TESTS AND PNG_SHARED)
- # does not work with msvc due to png_lib_ver issue
+ # Find test PNG files by globbing, but sort lists to ensure
+ # consistency between different filesystems.
+ file(GLOB PNGSUITE_PNGS "${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/*.png")
+ list(SORT PNGSUITE_PNGS)
+ file(GLOB TEST_PNGS "${CMAKE_CURRENT_SOURCE_DIR}/contrib/testpngs/*.png")
+ list(SORT TEST_PNGS)
+
+ set(PNGTEST_PNG "${CMAKE_CURRENT_SOURCE_DIR}/pngtest.png")
+
add_executable(pngtest ${pngtest_sources})
- target_link_libraries(pngtest ${PNG_LIB_NAME})
- add_test(pngtest pngtest ${CMAKE_CURRENT_SOURCE_DIR}/pngtest.png)
+ target_link_libraries(pngtest png)
+
+ png_add_test(NAME pngtest COMMAND pngtest FILES "${PNGTEST_PNG}")
+
+ add_executable(pngvalid ${pngvalid_sources})
+ target_link_libraries(pngvalid png)
+
+ png_add_test(NAME pngvalid-gamma-16-to-8
+ COMMAND pngvalid OPTIONS --gamma-16-to-8)
+ png_add_test(NAME pngvalid-gamma-alpha-mode
+ COMMAND pngvalid OPTIONS --gamma-alpha-mode)
+ png_add_test(NAME pngvalid-gamma-background
+ COMMAND pngvalid OPTIONS --gamma-background)
+ png_add_test(NAME pngvalid-gamma-expand16-alpha-mode
+ COMMAND pngvalid OPTIONS --gamma-alpha-mode --expand16)
+ png_add_test(NAME pngvalid-gamma-expand16-background
+ COMMAND pngvalid OPTIONS --gamma-background --expand16)
+ png_add_test(NAME pngvalid-gamma-expand16-transform
+ COMMAND pngvalid OPTIONS --gamma-transform --expand16)
+ png_add_test(NAME pngvalid-gamma-sbit
+ COMMAND pngvalid OPTIONS --gamma-sbit)
+ png_add_test(NAME pngvalid-gamma-threshold
+ COMMAND pngvalid OPTIONS --gamma-threshold)
+ png_add_test(NAME pngvalid-gamma-transform
+ COMMAND pngvalid OPTIONS --gamma-transform)
+ png_add_test(NAME pngvalid-progressive-interlace-standard
+ COMMAND pngvalid OPTIONS --standard --progressive-read --interlace)
+ png_add_test(NAME pngvalid-progressive-size
+ COMMAND pngvalid OPTIONS --size --progressive-read)
+ png_add_test(NAME pngvalid-progressive-standard
+ COMMAND pngvalid OPTIONS --standard --progressive-read)
+ png_add_test(NAME pngvalid-standard
+ COMMAND pngvalid OPTIONS --standard)
+ png_add_test(NAME pngvalid-transform
+ COMMAND pngvalid OPTIONS --transform)
+
+ add_executable(pngstest ${pngstest_sources})
+ target_link_libraries(pngstest png)
+
+ foreach(gamma_type 1.8 linear none sRGB)
+ foreach(alpha_type none alpha)
+ set(PNGSTEST_FILES)
+ foreach(test_png ${TEST_PNGS})
+ string(REGEX MATCH ".*-linear[-.].*" TEST_PNG_LINEAR "${test_png}")
+ string(REGEX MATCH ".*-sRGB[-.].*" TEST_PNG_SRGB "${test_png}")
+ string(REGEX MATCH ".*-1.8[-.].*" TEST_PNG_G18 "${test_png}")
+ string(REGEX MATCH ".*-alpha-.*" TEST_PNG_ALPHA "${test_png}")
+
+ set(TEST_PNG_VALID TRUE)
+
+ if(TEST_PNG_ALPHA)
+ if(NOT "${alpha_type}" STREQUAL "alpha")
+ set(TEST_PNG_VALID FALSE)
+ endif()
+ else()
+ if("${alpha_type}" STREQUAL "alpha")
+ set(TEST_PNG_VALID FALSE)
+ endif()
+ endif()
+
+ if(TEST_PNG_LINEAR)
+ if(NOT "${gamma_type}" STREQUAL "linear")
+ set(TEST_PNG_VALID FALSE)
+ endif()
+ elseif(TEST_PNG_SRGB)
+ if(NOT "${gamma_type}" STREQUAL "sRGB")
+ set(TEST_PNG_VALID FALSE)
+ endif()
+ elseif(TEST_PNG_G18)
+ if(NOT "${gamma_type}" STREQUAL "1.8")
+ set(TEST_PNG_VALID FALSE)
+ endif()
+ else()
+ if(NOT "${gamma_type}" STREQUAL "none")
+ set(TEST_PNG_VALID FALSE)
+ endif()
+ endif()
+
+ if(TEST_PNG_VALID)
+ list(APPEND PNGSTEST_FILES "${test_png}")
+ endif()
+ endforeach()
+ # Should already be sorted, but sort anyway to be certain.
+ list(SORT PNGSTEST_FILES)
+ png_add_test(NAME pngstest-${gamma_type}-${alpha_type}
+ COMMAND pngstest
+ OPTIONS --tmpfile "${gamma_type}-${alpha_type}-" --log
+ FILES ${PNGSTEST_FILES})
+ endforeach()
+ endforeach()
+
+ add_executable(pngunknown ${pngunknown_sources})
+ target_link_libraries(pngunknown png)
+
+ png_add_test(NAME pngunknown-discard COMMAND pngunknown OPTIONS --strict default=discard FILES "${PNGTEST_PNG}")
+ png_add_test(NAME pngunknown-IDAT COMMAND pngunknown OPTIONS --strict default=discard IDAT=save FILES "${PNGTEST_PNG}")
+ png_add_test(NAME pngunknown-if-safe COMMAND pngunknown OPTIONS --strict default=if-safe FILES "${PNGTEST_PNG}")
+ png_add_test(NAME pngunknown-sAPI COMMAND pngunknown OPTIONS --strict bKGD=save cHRM=save gAMA=save all=discard iCCP=save sBIT=save sRGB=save FILES "${PNGTEST_PNG}")
+ png_add_test(NAME pngunknown-save COMMAND pngunknown OPTIONS --strict default=save FILES "${PNGTEST_PNG}")
+ png_add_test(NAME pngunknown-sTER COMMAND pngunknown OPTIONS --strict sTER=if-safe FILES "${PNGTEST_PNG}")
+ png_add_test(NAME pngunknown-vpAg COMMAND pngunknown OPTIONS --strict vpAg=if-safe FILES "${PNGTEST_PNG}")
+
+ add_executable(pngimage ${pngimage_sources})
+ target_link_libraries(pngimage png)
+
+ png_add_test(NAME pngimage-quick COMMAND pngimage OPTIONS --list-combos --log FILES ${PNGSUITE_PNGS})
+ png_add_test(NAME pngimage-full COMMAND pngimage OPTIONS --exhaustive --list-combos --log FILES ${PNGSUITE_PNGS})
+endif()
+
+if(PNG_SHARED)
+ add_executable(pngfix ${pngfix_sources})
+ target_link_libraries(pngfix png)
+ set(PNG_BIN_TARGETS pngfix)
+
+ add_executable(png-fix-itxt ${png_fix_itxt_sources})
+ target_link_libraries(png-fix-itxt ${ZLIB_LIBRARY} ${M_LIBRARY})
+ list(APPEND PNG_BIN_TARGETS png-fix-itxt)
endif()
+# Set a variable with CMake code which:
+# Creates a symlink from src to dest (if possible) or alternatively
+# copies if different.
+include(CMakeParseArguments)
+
+function(create_symlink DEST_FILE)
+
+ cmake_parse_arguments(S "" "FILE;TARGET" "" ${ARGN})
+
+ if(NOT S_TARGET AND NOT S_FILE)
+ message(FATAL_ERROR "create_symlink: Missing TARGET or FILE argument")
+ endif()
+
+ if(S_TARGET AND S_FILE)
+ message(FATAL_ERROR "create_symlink: Both source file ${S_FILE} and build target ${S_TARGET} arguments are present; can only have one.")
+ endif()
+
+ if(S_FILE)
+ # If we don't need to symlink something that's coming from a build target,
+ # we can go ahead and symlink/copy at configure time.
+ if(CMAKE_HOST_WIN32 AND NOT CYGWIN)
+ execute_process(
+ COMMAND "${CMAKE_COMMAND}" -E copy_if_different ${S_FILE} ${DEST_FILE}
+ WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
+ else()
+ execute_process(
+ COMMAND ${CMAKE_COMMAND} -E create_symlink ${S_FILE} ${DEST_FILE}
+ WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
+ endif()
+ endif()
+
+ if(S_TARGET)
+ # We need to use generator expressions, which can be a bit tricky, so for
+ # simplicity make the symlink a POST_BUILD step and use the TARGET
+ # signature of add_custom_command.
+ if(CMAKE_HOST_WIN32 AND NOT CYGWIN)
+ add_custom_command(TARGET ${S_TARGET} POST_BUILD
+ COMMAND "${CMAKE_COMMAND}" -E copy_if_different $<TARGET_LINKER_FILE_NAME:${S_TARGET}> $<TARGET_LINKER_FILE_DIR:${S_TARGET}>/${DEST_FILE})
+ else()
+ add_custom_command(TARGET ${S_TARGET} POST_BUILD
+ COMMAND "${CMAKE_COMMAND}" -E create_symlink $<TARGET_LINKER_FILE_NAME:${S_TARGET}> $<TARGET_LINKER_FILE_DIR:${S_TARGET}>/${DEST_FILE})
+ endif()
+ endif()
+
+endfunction()
+
+# Create source generation scripts.
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/genchk.cmake.in
+ ${CMAKE_CURRENT_BINARY_DIR}/scripts/genchk.cmake @ONLY)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/genout.cmake.in
+ ${CMAKE_CURRENT_BINARY_DIR}/scripts/genout.cmake @ONLY)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/gensrc.cmake.in
+ ${CMAKE_CURRENT_BINARY_DIR}/scripts/gensrc.cmake @ONLY)
+
+# libpng is a library so default to 'lib'
+if(NOT DEFINED CMAKE_INSTALL_LIBDIR)
+ set(CMAKE_INSTALL_LIBDIR lib)
+endif()
# CREATE PKGCONFIG FILES
-# we use the same files like ./configure, so we have to set its vars
-set(prefix ${CMAKE_INSTALL_PREFIX})
-set(exec_prefix ${CMAKE_INSTALL_PREFIX})
-set(libdir ${CMAKE_INSTALL_PREFIX}/lib)
-set(includedir ${CMAKE_INSTALL_PREFIX}/include)
-
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/libpng.pc.in
- ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc)
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/libpng-config.in
- ${CMAKE_CURRENT_BINARY_DIR}/libpng-config)
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/libpng.pc.in
- ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc)
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/libpng-config.in
- ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config)
+# We use the same files like ./configure, so we have to set its vars.
+# Only do this on Windows for Cygwin - the files don't make much sense outside
+# of a UNIX look-alike.
+if(NOT WIN32 OR CYGWIN OR MINGW)
+ set(prefix ${CMAKE_INSTALL_PREFIX})
+ set(exec_prefix ${CMAKE_INSTALL_PREFIX})
+ set(libdir ${CMAKE_INSTALL_FULL_LIBDIR})
+ set(includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR})
+ set(LIBS "-lz -lm")
+ configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in
+ ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc @ONLY)
+ create_symlink(libpng.pc FILE ${PNGLIB_NAME}.pc)
+
+ configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in
+ ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config @ONLY)
+ create_symlink(libpng-config FILE ${PNGLIB_NAME}-config)
+endif()
# SET UP LINKS
if(PNG_SHARED)
- set_target_properties(${PNG_LIB_NAME} PROPERTIES
-# VERSION 0.${PNGLIB_RELEASE}.1.2.50
- VERSION 0.${PNGLIB_RELEASE}.0
- SOVERSION 0
+ set_target_properties(png PROPERTIES
+# VERSION 16.${PNGLIB_RELEASE}.1.6.36
+ VERSION 16.${PNGLIB_RELEASE}.0
+ SOVERSION 16
CLEAN_DIRECT_OUTPUT 1)
endif()
-if(PNG_STATIC)
- if(NOT WIN32)
- # that's uncool on win32 - it overwrites our static import lib...
- set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES
- OUTPUT_NAME ${PNG_LIB_NAME}
- CLEAN_DIRECT_OUTPUT 1)
- endif()
-endif()
# INSTALL
-if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
+if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL)
+ install(TARGETS ${PNG_LIB_TARGETS}
+ EXPORT libpng
+ RUNTIME DESTINATION bin
+ LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+ ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+ FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR})
+
if(PNG_SHARED)
- install(TARGETS ${PNG_LIB_NAME}
- RUNTIME DESTINATION bin
- LIBRARY DESTINATION lib
- ARCHIVE DESTINATION lib)
+ # Create a symlink for libpng.dll.a => libpng16.dll.a on Cygwin
+ if(CYGWIN OR MINGW)
+ create_symlink(libpng${CMAKE_IMPORT_LIBRARY_SUFFIX} TARGET png)
+ install(FILES $<TARGET_LINKER_FILE_DIR:png>/libpng${CMAKE_IMPORT_LIBRARY_SUFFIX}
+ DESTINATION ${CMAKE_INSTALL_LIBDIR})
+ endif()
+
+ if(NOT WIN32)
+ create_symlink(libpng${CMAKE_SHARED_LIBRARY_SUFFIX} TARGET png)
+ install(FILES $<TARGET_LINKER_FILE_DIR:png>/libpng${CMAKE_SHARED_LIBRARY_SUFFIX}
+ DESTINATION ${CMAKE_INSTALL_LIBDIR})
+ endif()
endif()
+
if(PNG_STATIC)
- install(TARGETS ${PNG_LIB_NAME_STATIC}
- LIBRARY DESTINATION lib
- ARCHIVE DESTINATION lib)
+ if(NOT WIN32 OR CYGWIN OR MINGW)
+ create_symlink(libpng${CMAKE_STATIC_LIBRARY_SUFFIX} TARGET png_static)
+ install(FILES $<TARGET_LINKER_FILE_DIR:png_static>/libpng${CMAKE_STATIC_LIBRARY_SUFFIX}
+ DESTINATION ${CMAKE_INSTALL_LIBDIR})
+ endif()
endif()
endif()
-if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL )
- install(FILES png.h pngconf.h DESTINATION include)
- install(FILES png.h pngconf.h DESTINATION include/${PNGLIB_NAME})
+if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL)
+ install(FILES ${libpng_public_hdrs} DESTINATION include)
+ install(FILES ${libpng_public_hdrs} DESTINATION include/${PNGLIB_NAME})
endif()
-if(NOT SKIP_INSTALL_EXECUTABLES AND NOT SKIP_INSTALL_ALL )
- install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config DESTINATION bin)
- install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
- DESTINATION bin)
+if(NOT SKIP_INSTALL_EXECUTABLES AND NOT SKIP_INSTALL_ALL)
+ if(NOT WIN32 OR CYGWIN OR MINGW)
+ install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config DESTINATION bin)
+ install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config DESTINATION bin)
+ endif()
endif()
-if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
+
+if(NOT SKIP_INSTALL_PROGRAMS AND NOT SKIP_INSTALL_ALL)
+ install(TARGETS ${PNG_BIN_TARGETS}
+ RUNTIME DESTINATION bin)
+endif()
+
+if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL)
# Install man pages
- install(FILES libpng.3 libpngpf.3 DESTINATION man/man3)
- install(FILES png.5 DESTINATION man/man5)
+ if(NOT PNG_MAN_DIR)
+ set(PNG_MAN_DIR "share/man")
+ endif()
+ install(FILES libpng.3 libpngpf.3 DESTINATION ${PNG_MAN_DIR}/man3)
+ install(FILES png.5 DESTINATION ${PNG_MAN_DIR}/man5)
# Install pkg-config files
- install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc
- DESTINATION lib/pkgconfig)
- install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng-config
- DESTINATION bin)
- install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc
- DESTINATION lib/pkgconfig)
- install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
- DESTINATION bin)
+ if(NOT CMAKE_HOST_WIN32 OR CYGWIN OR MINGW)
+ install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc
+ DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+ install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config
+ DESTINATION bin)
+ install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc
+ DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+ install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
+ DESTINATION bin)
+ endif()
endif()
-# what's with libpng.txt and all the extra files?
+# Create an export file that CMake users can include() to import our targets.
+if(NOT SKIP_INSTALL_EXPORT AND NOT SKIP_INSTALL_ALL)
+ install(EXPORT libpng DESTINATION lib/libpng FILE lib${PNG_LIB_NAME}.cmake)
+endif()
+# what's with libpng-manual.txt and all the extra files?
# UNINSTALL
# do we need this?
-
# DIST
# do we need this?
# to create msvc import lib for mingw compiled shared lib
# pexports libpng.dll > libpng.def
# lib /def:libpng.def /machine:x86
-