2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003
5 # Free Software Foundation, Inc.
7 #This file is part of GCC.
9 #GCC is free software; you can redistribute it and/or modify it under
10 #the terms of the GNU General Public License as published by the Free
11 #Software Foundation; either version 2, or (at your option) any later
14 #GCC is distributed in the hope that it will be useful, but WITHOUT
15 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 #You should have received a copy of the GNU General Public License
20 #along with GCC; see the file COPYING. If not, write to the Free
21 #Software Foundation, 59 Temple Place - Suite 330, Boston, MA
24 # --------------------------------
25 # Initialization and sanity checks
26 # --------------------------------
30 AC_CONFIG_HEADER(auto-host.h:config.in)
32 # Determine the host, build, and target systems
35 # Determine the target- and build-specific subdirectories
38 # Set program_transform_name
41 # Check for bogus environment variables.
42 # Test if LIBRARY_PATH contains the notation for the current directory
43 # since this would lead to problems installing/building glibc.
44 # LIBRARY_PATH contains the current directory if one of the following
46 # - one of the terminals (":" and ";") is the first or last sign
47 # - two terminals occur directly after each other
48 # - the path contains an element with a dot in it
49 AC_MSG_CHECKING(LIBRARY_PATH variable)
51 case ${LIBRARY_PATH} in
52 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
53 library_path_setting="contains current directory"
56 library_path_setting="ok"
60 AC_MSG_RESULT($library_path_setting)
61 if test "$library_path_setting" != "ok"; then
63 *** LIBRARY_PATH shouldn't contain the current directory when
64 *** building gcc. Please change the environment variable
65 *** and run configure again.])
68 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
69 # since this would lead to problems installing/building glibc.
70 # GCC_EXEC_PREFIX contains the current directory if one of the following
72 # - one of the terminals (":" and ";") is the first or last sign
73 # - two terminals occur directly after each other
74 # - the path contains an element with a dot in it
75 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
77 case ${GCC_EXEC_PREFIX} in
78 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
79 gcc_exec_prefix_setting="contains current directory"
82 gcc_exec_prefix_setting="ok"
86 AC_MSG_RESULT($gcc_exec_prefix_setting)
87 if test "$gcc_exec_prefix_setting" != "ok"; then
89 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
90 *** building gcc. Please change the environment variable
91 *** and run configure again.])
98 # Specify the local prefix
100 AC_ARG_WITH(local-prefix,
101 [ --with-local-prefix=DIR specifies directory to put local include],
102 [case "${withval}" in
103 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
105 *) local_prefix=$with_local_prefix ;;
108 # Default local prefix if it is empty
109 if test x$local_prefix = x; then
110 local_prefix=/usr/local
113 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
114 # passed in by the toplevel make and thus we'd get different behavior
115 # depending on where we built the sources.
117 # Specify the g++ header file directory
118 AC_ARG_WITH(gxx-include-dir,
119 [ --with-gxx-include-dir=DIR
120 specifies directory to put g++ header files],
121 [case "${withval}" in
122 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
124 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
127 if test x${gcc_gxx_include_dir} = x; then
128 if test x${enable_version_specific_runtime_libs} = xyes; then
129 gcc_gxx_include_dir='${libsubdir}/include/c++'
131 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
132 changequote(<<, >>)dnl
133 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
138 AC_ARG_WITH(cpp_install_dir,
139 [ --with-cpp-install-dir=DIR
140 install the user visible C preprocessor in DIR
141 (relative to PREFIX) as well as PREFIX/bin],
142 [if test x$withval = xyes; then
143 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
144 elif test x$withval != xno; then
145 cpp_install_dir=$withval
148 # -------------------
149 # Find default linker
150 # -------------------
154 [ --with-gnu-ld arrange to work with GNU ld.],
155 gnu_ld_flag="$with_gnu_ld",
158 # With pre-defined ld
160 [ --with-ld arrange to use the specified ld (full pathname)],
161 DEFAULT_LINKER="$with_ld")
162 if test x"${DEFAULT_LINKER+set}" = x"set"; then
163 if test ! -x "$DEFAULT_LINKER"; then
164 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
165 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
168 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
169 [Define to enable the use of a default linker.])
172 AC_MSG_CHECKING([whether a default linker was specified])
173 if test x"${DEFAULT_LINKER+set}" = x"set"; then
174 if test x"$gnu_ld_flag" = x"no"; then
175 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
177 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
183 # ----------------------
184 # Find default assembler
185 # ----------------------
189 [ --with-gnu-as arrange to work with GNU as],
190 gas_flag="$with_gnu_as",
194 [ --with-as arrange to use the specified as (full pathname)],
195 DEFAULT_ASSEMBLER="$with_as")
196 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
197 if test ! -x "$DEFAULT_ASSEMBLER"; then
198 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
199 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
202 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
203 [Define to enable the use of a default assembler.])
206 AC_MSG_CHECKING([whether a default assembler was specified])
207 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
208 if test x"$gas_flag" = x"no"; then
209 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
211 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
221 # Find the native compiler
224 # autoconf is lame and doesn't give us any substitution variable for this.
225 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
226 NO_MINUS_C_MINUS_O=yes
228 OUTPUT_OPTION='-o $@'
230 AC_SUBST(NO_MINUS_C_MINUS_O)
231 AC_SUBST(OUTPUT_OPTION)
233 # -------------------------
234 # Check C compiler features
235 # -------------------------
237 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
238 ac_cv_prog_cc_no_long_long,
239 [save_CFLAGS="$CFLAGS"
240 CFLAGS="-Wno-long-long"
241 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
242 ac_cv_prog_cc_no_long_long=no)
243 CFLAGS="$save_CFLAGS"])
251 # sizeof(char) is 1 by definition.
252 AC_COMPILE_CHECK_SIZEOF(short)
253 AC_COMPILE_CHECK_SIZEOF(int)
254 AC_COMPILE_CHECK_SIZEOF(long)
255 if test $ac_cv_c_long_long = yes; then
256 AC_COMPILE_CHECK_SIZEOF(long long)
258 if test $ac_cv_c___int64 = yes; then
259 AC_COMPILE_CHECK_SIZEOF(__int64)
268 # See if GNAT has been installed
271 if test x$have_gnat != xno ; then
272 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
273 ac_cv_prog_adac_no_long_long,
274 [cat >conftest.adb <<EOF
275 procedure conftest is begin null; end conftest;
277 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
278 ac_cv_prog_adac_no_long_long=yes
280 ac_cv_prog_adac_no_long_long=no
284 ac_cv_prog_adac_no_long_long=yes
287 # ---------------------
288 # Warnings and checking
289 # ---------------------
292 if test $ac_cv_prog_cc_no_long_long = yes && \
293 test $ac_cv_prog_adac_no_long_long = yes ; then
294 strict1_warn="-pedantic -Wno-long-long"
296 AC_SUBST(strict1_warn)
298 # If the native compiler is GCC, we can enable warnings even in stage1.
299 # That's useful for people building cross-compilers, or just running a
302 if test "x$GCC" = "xyes"; then
303 warn_cflags='$(GCC_WARN_CFLAGS)'
305 AC_SUBST(warn_cflags)
307 # Enable -Werror in bootstrap stage2 and later.
308 # Change the default to "no" on release branches.
309 AC_ARG_ENABLE(werror,
310 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
312 if test x$enable_werror = xyes ; then
317 # Enable expensive internal checks
318 AC_ARG_ENABLE(checking,
319 [ --enable-checking[=LIST]
320 enable expensive run-time checks. With LIST,
321 enable only specific categories of checks.
322 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
323 default is misc,tree,gc,rtlflag],
329 ac_gc_always_collect=
330 case "${enableval}" in
331 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
332 ac_rtlflag_checking=1 ;;
334 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
335 set fnord $enableval; shift
340 misc) ac_checking=1 ;;
341 tree) ac_tree_checking=1 ;;
342 rtlflag) ac_rtlflag_checking=1 ;;
343 rtl) ac_rtl_checking=1 ;;
344 gc) ac_gc_checking=1 ;;
345 gcac) ac_gc_always_collect=1 ;;
346 valgrind) ac_checking_valgrind=1 ;;
347 *) AC_MSG_ERROR(unknown check category $check) ;;
353 # Enable some checks by default for development versions of GCC
354 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
356 if test x$ac_checking != x ; then
357 AC_DEFINE(ENABLE_CHECKING, 1,
358 [Define if you want more run-time sanity checks. This one gets a grab
359 bag of miscellaneous but relatively cheap checks.])
360 nocommon_flag=-fno-common
362 AC_SUBST(nocommon_flag)
363 if test x$ac_tree_checking != x ; then
364 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
365 [Define if you want all operations on trees (the basic data
366 structure of the front ends) to be checked for dynamic type safety
367 at runtime. This is moderately expensive.])
369 if test x$ac_rtl_checking != x ; then
370 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
371 [Define if you want all operations on RTL (the basic data structure
372 of the optimizer and back end) to be checked for dynamic type safety
373 at runtime. This is quite expensive.])
375 if test x$ac_rtlflag_checking != x ; then
376 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
377 [Define if you want RTL flag accesses to be checked against the RTL
378 codes that are supported for each access macro. This is relatively
381 if test x$ac_gc_checking != x ; then
382 AC_DEFINE(ENABLE_GC_CHECKING, 1,
383 [Define if you want the garbage collector to do object poisoning and
384 other memory allocation checks. This is quite expensive.])
386 if test x$ac_gc_always_collect != x ; then
387 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
388 [Define if you want the garbage collector to operate in maximally
389 paranoid mode, validating the entire heap and collecting garbage at
390 every opportunity. This is extremely expensive.])
392 valgrind_path_defines=
394 if test x$ac_checking_valgrind != x ; then
395 # It is certainly possible that there's valgrind but no valgrind.h.
396 # GCC relies on making annotations so we must have both.
397 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
399 [#include <memcheck.h>
400 #ifndef VALGRIND_DISCARD
401 #error VALGRIND_DISCARD not defined
403 [gcc_cv_header_memcheck_h=yes],
404 gcc_cv_header_memcheck_h=no)
405 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
406 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
407 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
408 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
409 if test "x$valgrind_path" = "x" || (test $have_valgrind_h = no && test $gcc_cv_header_memcheck_h = no); then
410 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h/memcheck.h])
412 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
413 valgrind_command="$valgrind_path -q"
414 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
415 [Define if you want to run subprograms and generated programs
416 through valgrind (a memory checker). This is extremely expensive.])
417 if test $gcc_cv_header_memcheck_h = yes; then
418 AC_DEFINE(HAVE_MEMCHECK_H, 1,
419 [Define if valgrind's memcheck.h header is installed.])
422 AC_SUBST(valgrind_path_defines)
423 AC_SUBST(valgrind_command)
425 # Enable code coverage collection
426 AC_ARG_ENABLE(coverage,
427 [ --enable-coverage[=LEVEL]
428 enable compiler\'s code coverage collection.
429 Use to measure compiler performance and locate
430 unused parts of the compiler. With LEVEL, specify
431 optimization. Values are opt, noopt,
433 [case "${enableval}" in
435 coverage_flags="-fprofile-arcs -ftest-coverage -O0 -DSELF_COVERAGE=1"
438 coverage_flags="-fprofile-arcs -ftest-coverage -O2 -DSELF_COVERAGE=2"
441 AC_MSG_ERROR(unknown coverage setting $enableval)
445 AC_SUBST(coverage_flags)
447 # -------------------------------
448 # Miscenalleous configure options
449 # -------------------------------
453 [ --with-stabs arrange to use stabs instead of host debug format],
459 [ --with-elf arrange to use ELF instead of host debug format],
463 # Determine whether or not multilibs are enabled.
464 AC_ARG_ENABLE(multilib,
465 [ --enable-multilib enable library support for multiple ABIs],
466 [], [enable_multilib=yes])
467 AC_SUBST(enable_multilib)
469 # Enable __cxa_atexit for C++.
470 AC_ARG_ENABLE(__cxa_atexit,
471 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
474 # Enable Multibyte Characters for C/C++
475 AC_ARG_ENABLE(c-mbchar,
476 [ --enable-c-mbchar enable multibyte characters for C and C++],
477 if test x$enable_c_mbchar != xno; then
478 AC_DEFINE(MULTIBYTE_CHARS, 1,
479 [Define if you want the C and C++ compilers to support multibyte
480 character sets for source code.])
484 # Pass with no value to take the default
485 # Pass with a value to specify a thread package
486 AC_ARG_ENABLE(threads,
487 [ --enable-threads enable thread usage for target GCC
488 --enable-threads=LIB use LIB thread package for target GCC],,
491 enable_threads_flag=$enable_threads
492 # Check if a valid thread package
493 case x${enable_threads_flag} in
496 target_thread_file='single'
500 target_thread_file=''
502 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
503 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix | xgnat)
504 target_thread_file=$enable_threads_flag
507 echo "$enable_threads is an unknown thread package" 1>&2
512 AC_ARG_ENABLE(objc-gc,
513 [ --enable-objc-gc enable the use of Boehm's garbage collector with
514 the GNU Objective-C runtime],
515 if test x$enable_objc_gc = xno; then
523 [ --with-dwarf2 force the default debug format to be DWARF 2],
524 dwarf2="$with_dwarf2",
527 AC_ARG_ENABLE(shared,
528 [ --disable-shared don't provide a shared libgcc],
530 case $enable_shared in
534 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
535 for pkg in $enableval; do
536 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
543 ], [enable_shared=yes])
544 AC_SUBST(enable_shared)
547 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
549 case ${with_sysroot} in
550 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
551 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
554 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
555 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
557 if test "x$exec_prefix" = xNONE; then
558 if test "x$prefix" = xNONE; then
559 test_prefix=/usr/local
564 test_prefix=$exec_prefix
566 case ${TARGET_SYSTEM_ROOT} in
567 "${test_prefix}"|"${test_prefix}/"*|\
568 '${exec_prefix}'|'${exec_prefix}/'*)
569 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
570 TARGET_SYSTEM_ROOT_DEFINE="$t"
575 TARGET_SYSTEM_ROOT_DEFINE=
576 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
578 AC_SUBST(TARGET_SYSTEM_ROOT)
579 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
580 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
582 # -------------------------
583 # Checks for other programs
584 # -------------------------
588 # Find some useful tools
595 # See if we have the mktemp command.
596 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
598 # Do we have a single-tree copy of texinfo?
599 if test -f $srcdir/../texinfo/Makefile.in; then
600 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
601 gcc_cv_prog_makeinfo_modern=yes
602 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
604 # See if makeinfo has been installed and is modern enough
605 # that we can use it.
606 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
607 [GNU texinfo.* \([0-9][0-9.]*\)],
611 if test $gcc_cv_prog_makeinfo_modern = no; then
613 *** Makeinfo is missing or too old.
614 *** Info documentation will not be built.])
617 BUILD_INFO=info AC_SUBST(BUILD_INFO)
620 # Is pod2man recent enough to regenerate manpages?
621 AC_MSG_CHECKING([for recent Pod::Man])
622 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
624 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
630 # 'make compare' can be significantly faster, if cmp itself can
631 # skip bytes instead of using tail. The test being performed is
632 # "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
633 # but we need to sink errors and handle broken shells.
634 AC_MSG_CHECKING([for cmp's capabilities])
637 if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
638 if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
639 make_compare_target=slowcompare
641 make_compare_target=gnucompare
644 make_compare_target=slowcompare
647 AC_SUBST(make_compare_target)
648 AC_MSG_RESULT($make_compare_target)
651 dnl Don't use AC_PROG_LEX; we insist on flex.
652 dnl LEXLIB is not useful in gcc.
653 if test -f $srcdir/../flex/skel.c; then
654 FLEX='$(objdir)/../flex/flex'
656 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
660 # The -L switch is so bison can find its skeleton file.
661 if test -f $srcdir/../bison/bison.simple; then
662 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
664 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
667 # --------------------
668 # Checks for C headers
669 # --------------------
671 AC_MSG_CHECKING(for GNU C library)
672 AC_CACHE_VAL(gcc_cv_glibc,
674 [#include <features.h>],[
675 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
676 #error Not a GNU C library system
680 AC_MSG_RESULT($gcc_cv_glibc)
681 if test $gcc_cv_glibc = yes; then
682 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
687 gcc_AC_HEADER_STDBOOL
690 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
691 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
692 sys/resource.h sys/param.h sys/times.h sys/stat.h \
693 direct.h malloc.h langinfo.h ldfcn.h wchar.h)
695 # Check for thread headers.
696 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
697 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
699 # These tests can't be done till we know if we have limits.h.
707 # Stage specific cflags for build.
713 stage1_cflags="-Wa,-J"
719 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
720 # sources; use -no-cpp-precomp to get to GNU cpp.
721 # Apple's GCC has bugs in designated initializer handling, so disable
723 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
726 AC_SUBST(stage1_cflags)
728 # These libraries may be used by collect2.
729 # We may need a special search path to get them linked.
730 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
732 for libs in '' -lld -lmld \
733 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
734 '-L/usr/lib/cmplrs/cc3.11 -lmld'
737 AC_TRY_LINK_FUNC(ldopen,
738 [gcc_cv_collect2_libs="$libs"; break])
741 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
742 case $gcc_cv_collect2_libs in
744 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
746 AC_SUBST(COLLECT2_LIBS)
748 # When building Ada code on Alpha, we need exc_resume which is usually in
749 # -lexc. So test for it.
752 AC_SEARCH_LIBS(exc_resume, exc)
755 AC_SUBST(GNAT_LIBEXC)
757 # Some systems put ldexp and frexp in libm instead of libc; assume
758 # they're both in the same place. jcf-dump needs them.
761 AC_SEARCH_LIBS(ldexp, m)
766 # Use <inttypes.h> only if it exists,
767 # doesn't clash with <sys/types.h>, and declares intmax_t.
768 AC_MSG_CHECKING(for inttypes.h)
769 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
771 [#include <sys/types.h>
772 #include <inttypes.h>],
774 [gcc_cv_header_inttypes_h=yes],
775 gcc_cv_header_inttypes_h=no)])
776 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
777 if test $gcc_cv_header_inttypes_h = yes; then
778 AC_DEFINE(HAVE_INTTYPES_H, 1,
779 [Define if you have a working <inttypes.h> header file.])
782 dnl Disabled until we have a complete test for buggy enum bitfields.
783 dnl gcc_AC_C_ENUM_BF_UNSIGNED
785 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
786 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
787 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
788 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore)
790 if test x$ac_cv_func_mbstowcs = xyes; then
791 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
792 [ AC_TRY_RUN([#include <stdlib.h>
798 gcc_cv_func_mbstowcs_works=yes,
799 gcc_cv_func_mbstowcs_works=no,
800 gcc_cv_func_mbstowcs_works=yes)])
801 if test x$gcc_cv_func_mbstowcs_works = xyes; then
802 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
803 [Define this macro if mbstowcs does not crash when its
804 first argument is NULL.])
808 AC_CHECK_TYPE(ssize_t, int)
810 # Try to determine the array type of the second argument of getgroups
811 # for the target system (int or gid_t).
813 if test "${target}" = "${build}"; then
814 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
817 # This condition may need some tweaking. It should include all
818 # targets where the array type of the second argument of getgroups
819 # is int and the type of gid_t is not equivalent to int.
820 *-*-sunos* | *-*-ultrix*)
821 TARGET_GETGROUPS_T=int
824 TARGET_GETGROUPS_T=gid_t
828 AC_SUBST(TARGET_GETGROUPS_T)
830 gcc_AC_FUNC_PRINTF_PTR
831 gcc_AC_FUNC_MMAP_BLACKLIST
836 *** UWIN may not be used as a host platform because
837 *** linking with posix.dll is not allowed by the GNU GPL])
840 # Under VMS, vfork works very different than on Unix. The standard test
841 # won't work, and it isn't easily adaptable. It makes more sense to
843 ac_cv_func_vfork_works=yes
850 # We will need to find libiberty.h and ansidecl.h
851 saved_CFLAGS="$CFLAGS"
852 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
853 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
854 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
855 fprintf_unlocked strstr errno vasprintf \
856 malloc realloc calloc free basename getopt clock, , ,[
857 #include "ansidecl.h"
858 #include "system.h"])
860 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
861 #include "ansidecl.h"
863 #ifdef HAVE_SYS_RESOURCE_H
864 #include <sys/resource.h>
869 #include "ansidecl.h"
871 #ifdef HAVE_SYS_RESOURCE_H
872 #include <sys/resource.h>
874 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
875 [Define to \`long' if <sys/resource.h> doesn't define.])])
877 gcc_AC_CHECK_DECLS(ldgetname, , ,[
878 #include "ansidecl.h"
885 gcc_AC_CHECK_DECLS(times, , ,[
886 #include "ansidecl.h"
888 #ifdef HAVE_SYS_TIMES_H
889 #include <sys/times.h>
893 # More time-related stuff.
894 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
896 #include "ansidecl.h"
898 #ifdef HAVE_SYS_TIMES_H
899 #include <sys/times.h>
901 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
902 if test $ac_cv_struct_tms = yes; then
903 AC_DEFINE(HAVE_STRUCT_TMS, 1,
904 [Define if <sys/times.h> defines struct tms.])
907 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
908 # revisit after autoconf 2.50.
909 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
911 #include "ansidecl.h"
913 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
914 if test $gcc_cv_type_clock_t = yes; then
915 AC_DEFINE(HAVE_CLOCK_T, 1,
916 [Define if <time.h> defines clock_t.])
919 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
921 #include "ansidecl.h"
924 [if ((uchar *)0) return 0;
925 if (sizeof(uchar)) return 0;],
926 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
927 if test $ac_cv_type_uchar = yes; then
928 AC_DEFINE(HAVE_UCHAR, 1,
929 [Define if <sys/types.h> defines \`uchar'.])
932 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
933 CFLAGS="$saved_CFLAGS"
935 gcc_AC_INITFINI_ARRAY
937 # mkdir takes a single argument on some systems.
938 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
946 # With Setjmp/Longjmp based exception handling.
947 AC_ARG_ENABLE(sjlj-exceptions,
948 [ --enable-sjlj-exceptions
949 arrange to use setjmp/longjmp exception handling],
950 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
951 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
952 [Define 0/1 to force the choice for exception handling model.])])
954 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
955 # Use libunwind based exception handling.
956 AC_ARG_ENABLE(libunwind-exceptions,
957 [ --enable-libunwind-exceptions force use libunwind for exceptions],
958 use_libunwind_exceptions=$enableval,
959 use_libunwind_exceptions=$use_libunwind_default)
960 if test x"$use_libunwind_exceptions" = xyes; then
961 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
962 [Define if gcc should use -lunwind.])
965 # --------------------------------------------------------
966 # Build, host, and target specific configuration fragments
967 # --------------------------------------------------------
972 build_install_headers_dir=install-headers-tar
979 # Decode the host machine, then the target machine.
980 # For the host machine, we save the xm_file variable as host_xm_file;
981 # then we decode the target machine and forget everything else
982 # that came from the host machine.
983 for machine in $build $host $target; do
984 . ${srcdir}/config.gcc
987 extra_objs="${host_extra_objs} ${extra_objs}"
989 # Default the target-machine variables that were not explicitly set.
990 if test x"$tm_file" = x
991 then tm_file=$cpu_type/$cpu_type.h; fi
993 if test x"$extra_headers" = x
994 then extra_headers=; fi
996 if test x$md_file = x
997 then md_file=$cpu_type/$cpu_type.md; fi
999 if test x$out_file = x
1000 then out_file=$cpu_type/$cpu_type.c; fi
1002 if test x"$tmake_file" = x
1003 then tmake_file=$cpu_type/t-$cpu_type
1006 if test x"$dwarf2" = xyes
1007 then tm_file="$tm_file tm-dwarf2.h"
1010 # Say what files are being used for the output code and MD file.
1011 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1012 echo "Using \`$srcdir/config/$md_file' as machine description file."
1014 # If any of the xm_file variables contain nonexistent files, warn
1015 # about them and drop them.
1018 for x in $build_xm_file; do
1019 if test -f $srcdir/config/$x
1021 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1027 for x in $host_xm_file; do
1028 if test -f $srcdir/config/$x
1030 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1036 for x in $xm_file; do
1037 if test -f $srcdir/config/$x
1039 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1045 for f in $tm_file; do
1048 if test $count = ax; then
1049 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1051 echo "Using the following target machine macro files:"
1052 for f in $tm_file; do
1053 echo " $srcdir/config/$f"
1057 if test x$need_64bit_hwint = xyes; then
1058 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1059 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1063 for f in $host_xm_file; do
1066 if test $count = a; then
1068 elif test $count = ax; then
1069 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1071 echo "Using the following host machine macro files:"
1072 for f in $host_xm_file; do
1073 echo " $srcdir/config/$f"
1076 echo "Using ${out_host_hook_obj} for host machine hooks."
1078 if test "$host_xm_file" != "$build_xm_file"; then
1080 for f in $build_xm_file; do
1083 if test $count = a; then
1085 elif test $count = ax; then
1086 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1088 echo "Using the following build machine macro files:"
1089 for f in $build_xm_file; do
1090 echo " $srcdir/config/$f"
1095 if test x$thread_file = x; then
1096 if test x$target_thread_file != x; then
1097 thread_file=$target_thread_file
1099 thread_file='single'
1103 if test x$enable___cxa_atexit = xyes || \
1104 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1105 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1106 [Define if you want to use __cxa_atexit, rather than atexit, to
1107 register C++ destructors for local statics and global objects.
1108 This is essential for fully standards-compliant handling of
1109 destructors, but requires __cxa_atexit in libc.])
1112 # Look for a file containing extra machine modes.
1113 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1114 extra_modes_file='$(srcdir)'/config/${extra_modes}
1115 AC_SUBST(extra_modes_file)
1116 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1117 [Define to the name of a file containing a list of extra machine modes
1118 for this architecture.])
1119 AC_DEFINE(EXTRA_CC_MODES, 1,
1120 [Define if the target architecture needs extra machine modes to represent
1121 the results of comparisons.])
1124 # auto-host.h is the file containing items generated by autoconf and is
1125 # the first file included by config.h.
1126 # If host=build, it is correct to have bconfig include auto-host.h
1127 # as well. If host!=build, we are in error and need to do more
1128 # work to find out the build config parameters.
1129 if test x$host = x$build
1131 build_auto=auto-host.h
1134 # We create a subdir, then run autoconf in the subdir.
1135 # To prevent recursion we set host and build for the new
1136 # invocation of configure to the build for this invocation
1143 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1144 *) realsrcdir=../${srcdir};;
1146 saved_CFLAGS="${CFLAGS}"
1147 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1148 ${realsrcdir}/configure \
1149 --target=$target_alias --host=$build_alias --build=$build_alias
1150 CFLAGS="${saved_CFLAGS}"
1152 # We just finished tests for the build machine, so rename
1153 # the file auto-build.h in the gcc directory.
1154 mv auto-host.h ../auto-build.h
1157 build_auto=auto-build.h
1158 FORBUILD=../${build_subdir}
1162 tm_file="${tm_file} defaults.h"
1163 tm_p_file="${tm_p_file} tm-preds.h"
1164 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1165 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1166 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1167 # put this back in temporarily.
1168 xm_file="ansidecl.h ${xm_file}"
1174 # Get the version trigger filename from the toplevel
1175 if test "${with_gcc_version_trigger+set}" = set; then
1176 gcc_version_trigger=$with_gcc_version_trigger
1178 gcc_version_trigger=${srcdir}/version.c
1181 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1182 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1184 # Compile in configure arguments.
1185 if test -f configargs.h ; then
1186 # Being re-configured.
1187 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1188 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1190 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1192 cat > configargs.h <<EOF
1193 /* Generated automatically. */
1194 static const char configuration_arguments[] = "$gcc_config_arguments";
1195 static const char thread_model[] = "$thread_file";
1197 static const struct {
1198 const char *name, *value;
1199 } configure_default_options[] = $configure_default_options;
1203 # Internationalization
1205 VERSION="$gcc_version"
1209 # Enable NLS support by default
1211 [ --enable-nls use Native Language Support (default)],
1214 # if cross compiling, disable NLS support.
1215 # It's not worth the trouble, at least for now.
1217 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
1218 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
1224 # Windows32 Registry support for specifying GCC installation paths.
1225 AC_ARG_ENABLE(win32-registry,
1226 [ --disable-win32-registry
1227 disable lookup of installation paths in the
1228 Registry on Windows hosts
1229 --enable-win32-registry enable registry lookup (default)
1230 --enable-win32-registry=KEY
1231 use KEY instead of GCC version as the last portion
1232 of the registry key],,)
1234 win32 | pe | cygwin* | mingw32* | uwin*)
1235 AC_MSG_CHECKING(whether windows registry support is requested)
1236 if test "x$enable_win32_registry" != xno; then
1237 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1238 [Define to 1 if installation paths should be looked up in Windows32
1239 Registry. Ignored on non windows32 hosts.])
1241 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1246 # Check if user specified a different registry key.
1247 case "x${enable_win32_registry}" in
1250 gcc_cv_win32_registry_key="$VERSION"
1253 # no registry lookup.
1254 gcc_cv_win32_registry_key=''
1257 # user-specified key.
1258 gcc_cv_win32_registry_key="$enable_win32_registry"
1262 if test "x$enable_win32_registry" != xno; then
1263 AC_MSG_CHECKING(registry key on windows hosts)
1264 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1265 [Define to be the last portion of registry key on windows hosts.])
1266 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1271 # Get an absolute path to the GCC top-level source directory
1272 holddir=`${PWDCMD-pwd}`
1274 topdir=`${PWDCMD-pwd}`
1277 # Conditionalize the makefile for this host machine.
1278 # Make-host contains the concatenation of all host makefile fragments
1279 # [there can be more than one]. This file is built by configure.frag.
1280 host_overrides=Make-host
1281 dep_host_xmake_file=
1282 for f in .. ${host_xmake_file}
1284 if test -f ${srcdir}/config/$f
1286 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1290 # Conditionalize the makefile for this target machine.
1291 # Make-target contains the concatenation of all host makefile fragments
1292 # [there can be more than one]. This file is built by configure.frag.
1293 target_overrides=Make-target
1295 for f in .. ${tmake_file}
1297 if test -f ${srcdir}/config/$f
1299 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1303 symbolic_link='ln -s'
1305 # If the host doesn't support symlinks, modify CC in
1306 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1307 # Otherwise, we can use "CC=$(CC)".
1309 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1311 cc_set_by_configure="\$(CC)"
1312 quoted_cc_set_by_configure="\$(CC)"
1313 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1314 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1317 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1319 symbolic_link="cp -p"
1323 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1324 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1325 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1326 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1330 out_object_file=`basename $out_file .c`.o
1333 for f in $tm_file; do
1336 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1338 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1339 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1344 for f in $tm_p_file; do
1347 tm_p_file_list="${tm_p_file_list} $f" ;;
1348 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1353 for f in $host_xm_file; do
1356 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1358 host_xm_file_list="${host_xm_file_list} $f" ;;
1360 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1361 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1366 for f in $build_xm_file; do
1369 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1370 auto-build.h | auto-host.h )
1371 build_xm_file_list="${build_xm_file_list} $f" ;;
1373 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1374 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1378 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1379 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1380 CROSS= AC_SUBST(CROSS)
1381 ALL=all.internal AC_SUBST(ALL)
1382 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1383 if test x$host != x$target
1385 CROSS="-DCROSS_COMPILE"
1387 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1388 case "$host","$target" in
1389 i?86-*-*,x86_64-*-* \
1390 | powerpc*-*-*,powerpc64*-*-*)
1391 CROSS="$CROSS -DNATIVE_CROSS" ;;
1393 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1394 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1395 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1398 # If this is a cross-compiler that does not
1399 # have its own set of headers then define
1402 # If this is using newlib, without having the headers available now,
1403 # then define inhibit_libc in LIBGCC2_CFLAGS.
1404 # This prevents libgcc2 from containing any code which requires libc
1407 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1408 test x$with_newlib = xyes ; } &&
1409 test "x$with_headers" = x ; then
1410 inhibit_libc=-Dinhibit_libc
1412 AC_SUBST(inhibit_libc)
1414 # When building gcc with a cross-compiler, we need to adjust things so
1415 # that the generator programs are still built with the native compiler.
1416 # Also, we cannot run fixincludes or fix-header.
1418 # These are the normal (build=host) settings:
1419 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1420 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1421 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1422 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1424 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1425 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1427 # And these apply if build != host.
1428 if test x$build != x$host
1431 BUILD_PREFIX_1=build-
1432 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1434 if test "x$TARGET_SYSTEM_ROOT" = x; then
1440 # Expand extra_headers to include complete path.
1441 # This substitutes for lots of t-* files.
1443 if test "x$extra_headers" = x
1446 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1447 for file in $extra_headers;
1449 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1453 # Add a definition of USE_COLLECT2 if system wants one.
1454 case $use_collect2 in
1455 no) use_collect2= ;;
1458 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1459 xm_defines="${xm_defines} USE_COLLECT2"
1463 # Identify the assembler which will work hand-in-glove with the newly
1464 # built GCC, so that we can examine its features. This is the assembler
1465 # which will be driven by the driver program.
1467 # If build != host, and we aren't building gas in-tree, we identify a
1468 # build->target assembler and hope that it will have the same features
1469 # as the host->target assembler we'll be using.
1470 AC_MSG_CHECKING(what assembler to use)
1473 gcc_cv_gas_major_version=
1474 gcc_cv_gas_minor_version=
1475 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1476 if test -x "$DEFAULT_ASSEMBLER"; then
1477 gcc_cv_as="$DEFAULT_ASSEMBLER"
1478 elif test -x "$AS"; then
1480 elif test -x as$host_exeext; then
1481 # Build using assembler in the current directory.
1482 gcc_cv_as=./as$host_exeext
1483 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1484 && test -f ../gas/Makefile; then
1485 # Single tree build which includes gas.
1487 _gcc_COMPUTE_GAS_VERSION
1488 rm -f as$host_exeext
1489 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1492 if test "x$gcc_cv_as" = x; then
1493 # Search the same directories that the installed compiler will
1494 # search. Else we may find the wrong assembler and lose. If we
1495 # do not find a suitable assembler binary, then try the user's
1498 # Also note we have to check MD_EXEC_PREFIX before checking the
1499 # user's path. Unfortunately, there is no good way to get at the
1500 # value of MD_EXEC_PREFIX here. So we do a brute force search
1501 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1502 # to be fixed as part of the make/configure rewrite too.
1504 if test "x$exec_prefix" = xNONE; then
1505 if test "x$prefix" = xNONE; then
1506 test_prefix=/usr/local
1511 test_prefix=$exec_prefix
1514 # If the loop below does not find an assembler, then use whatever
1515 # one we can find in the users's path.
1517 if test "x$program_prefix" != xNONE; then
1518 gcc_cv_as=${program_prefix}as$host_exeext
1520 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1523 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1524 $test_prefix/lib/gcc-lib/$target_alias \
1525 /usr/lib/gcc/$target_alias/$gcc_version \
1526 /usr/lib/gcc/$target_alias \
1527 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1528 $test_prefix/$target_alias/bin"
1530 if test x$host = x$target; then
1531 test_dirs="$test_dirs \
1536 /bsd43/usr/lib/cmplrs/cc \
1537 /usr/cross64/usr/bin \
1538 /usr/lib/cmplrs/cc \
1539 /sysv/usr/lib/cmplrs/cc \
1540 /svr4/usr/lib/cmplrs/cc \
1544 for dir in $test_dirs; do
1545 if test -x $dir/as$host_exeext; then
1546 gcc_cv_as=$dir/as$host_exeext
1551 case $in_tree_gas in
1553 AC_MSG_RESULT("newly built gas")
1556 AC_MSG_RESULT($gcc_cv_as)
1560 # Identify the linker which will work hand-in-glove with the newly
1561 # built GCC, so that we can examine its features. This is the linker
1562 # which will be driven by the driver program.
1564 # If build != host, and we aren't building gas in-tree, we identify a
1565 # build->target linker and hope that it will have the same features
1566 # as the host->target linker we'll be using.
1567 AC_MSG_CHECKING(what linker to use)
1570 gcc_cv_gld_major_version=
1571 gcc_cv_gld_minor_version=
1572 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1573 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1574 if test -x "$DEFAULT_LINKER"; then
1575 gcc_cv_ld="$DEFAULT_LINKER"
1576 elif test -x "$LD"; then
1578 elif test -x collect-ld$host_exeext; then
1579 # Build using linker in the current directory.
1580 gcc_cv_ld=./collect-ld$host_exeext
1581 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1582 && test -f ../ld/Makefile; then
1583 # Single tree build which includes ld.
1585 for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in
1588 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1590 if test x$gcc_cv_gld_version != x; then
1595 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1596 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1598 rm -f collect-ld$host_exeext
1599 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1603 if test "x$gcc_cv_ld" = x; then
1604 # Search the same directories that the installed compiler will
1605 # search. Else we may find the wrong linker and lose. If we
1606 # do not find a suitable linker binary, then try the user's
1609 # Also note we have to check MD_EXEC_PREFIX before checking the
1610 # user's path. Unfortunately, there is no good way to get at the
1611 # value of MD_EXEC_PREFIX here. So we do a brute force search
1612 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1613 # to be fixed as part of the make/configure rewrite too.
1615 if test "x$exec_prefix" = xNONE; then
1616 if test "x$prefix" = xNONE; then
1617 test_prefix=/usr/local
1622 test_prefix=$exec_prefix
1625 # If the loop below does not find an linker, then use whatever
1626 # one we can find in the users's path.
1628 if test "x$program_prefix" != xNONE; then
1629 gcc_cv_ld=${program_prefix}ld$host_exeext
1631 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1634 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1635 $test_prefix/lib/gcc-lib/$target_alias \
1636 /usr/lib/gcc/$target_alias/$gcc_version \
1637 /usr/lib/gcc/$target_alias \
1638 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1639 $test_prefix/$target_alias/bin"
1641 if test x$host = x$target; then
1642 test_dirs="$test_dirs \
1647 /bsd43/usr/lib/cmplrs/cc \
1648 /usr/cross64/usr/bin \
1649 /usr/lib/cmplrs/cc \
1650 /sysv/usr/lib/cmplrs/cc \
1651 /svr4/usr/lib/cmplrs/cc \
1655 for dir in $test_dirs; do
1656 if test -x $dir/ld$host_exeext; then
1657 gcc_cv_ld=$dir/ld$host_exeext
1664 AC_MSG_RESULT("newly built ld")
1667 AC_MSG_RESULT($gcc_cv_ld)
1671 # Figure out what nm we will be using.
1672 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1673 AC_MSG_CHECKING(what nm to use)
1675 if test -x nm$host_exeext; then
1676 gcc_cv_nm=./nm$host_exeext
1677 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1678 && test -f ../binutils/Makefile; then
1679 # Single tree build which includes binutils.
1681 gcc_cv_nm=./nm$host_exeext
1682 rm -f nm$host_exeext
1683 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1684 elif test "x$program_prefix" != xNONE; then
1685 gcc_cv_nm=${program_prefix}nm$host_exeext
1687 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1690 yes) AC_MSG_RESULT("newly built nm") ;;
1691 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1694 # Figure out what objdump we will be using.
1695 AC_MSG_CHECKING(what objdump to use)
1697 if test -x objdump$host_exeext; then
1698 gcc_cv_objdump=./objdump$host_exeext
1699 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1700 && test -f ../binutils/Makefile; then
1701 # Single tree build which includes binutils.
1703 gcc_cv_objdump=./objdump$host_exeext
1704 rm -f objdump$host_exeext
1705 $symbolic_link ../binutils/objdump$host_exeext \
1706 objdump$host_exeext 2>/dev/null
1707 elif test "x$program_prefix" != xNONE; then
1708 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1710 gcc_cv_objdump=`echo objdump | \
1711 sed ${program_transform_name}`$host_exeext
1713 case $in_tree_objdump in
1714 yes) AC_MSG_RESULT("newly built objdump") ;;
1715 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1718 # Figure out what assembler alignment features are present.
1719 AC_MSG_CHECKING(assembler alignment features)
1720 gcc_cv_as_alignment_features=none
1721 if test $in_tree_gas = yes; then
1722 # Gas version 2.6 and later support for .balign and .p2align.
1723 gcc_GAS_VERSION_GTE_IFELSE(2,6,0,[
1724 gcc_cv_as_alignment_features=".balign and .p2align"
1725 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1727 # Gas version 2.8 and later support specifying the maximum
1728 # bytes to skip when using .p2align.
1729 gcc_GAS_VERSION_GTE_IFELSE(2,8,0,[
1730 gcc_cv_as_alignment_features=".p2align including maximum skip"
1731 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1733 elif test x$gcc_cv_as != x; then
1734 # Check if we have .balign and .p2align
1735 echo ".balign 4" > conftest.s
1736 echo ".p2align 2" >> conftest.s
1737 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1738 gcc_cv_as_alignment_features=".balign and .p2align"
1739 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1741 rm -f conftest.s conftest.o
1742 # Check if specifying the maximum bytes to skip when
1743 # using .p2align is supported.
1744 echo ".p2align 4,,7" > conftest.s
1745 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1746 gcc_cv_as_alignment_features=".p2align including maximum skip"
1747 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1749 rm -f conftest.s conftest.o
1751 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1753 AC_MSG_CHECKING(assembler subsection support)
1754 gcc_cv_as_subsections=no
1755 if test $in_tree_gas = yes ; then
1756 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
1757 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1758 gcc_cv_as_subsections="working .subsection -1"
1761 elif test x$gcc_cv_as != x; then
1762 # Check if we have .subsection
1763 echo ".subsection 1" > conftest.s
1764 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1765 gcc_cv_as_subsections=".subsection"
1766 if test x$gcc_cv_nm != x; then
1767 cat > conftest.s <<EOF
1768 conftest_label1: .word 0
1770 conftest_label2: .word 0
1773 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1774 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1775 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1776 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1779 gcc_cv_as_subsections="working .subsection -1"
1784 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1786 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1787 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1788 [Define if your assembler supports .subsection and .subsection -1 starts
1789 emitting at the beginning of your section.])
1791 AC_MSG_RESULT($gcc_cv_as_subsections)
1793 AC_MSG_CHECKING(assembler weak support)
1795 if test $in_tree_gas = yes ; then
1796 gcc_GAS_VERSION_GTE_IFELSE(2,2,0,[
1797 gcc_cv_as_weak="yes"
1799 elif test x$gcc_cv_as != x; then
1800 # Check if we have .weak
1801 echo " .weak foobar" > conftest.s
1802 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1803 gcc_cv_as_weak="yes"
1805 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1807 if test x"$gcc_cv_as_weak" = xyes; then
1808 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1810 AC_MSG_RESULT($gcc_cv_as_weak)
1812 AC_MSG_CHECKING(assembler hidden support)
1814 if test $in_tree_gas = yes ; then
1815 gcc_GAS_VERSION_GTE_IFELSE(2,12,1,[
1816 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1817 gcc_cv_as_hidden="yes"
1820 elif test x$gcc_cv_as != x; then
1821 # Check if we have .hidden
1822 echo " .hidden foobar" > conftest.s
1823 echo "foobar:" >> conftest.s
1824 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1825 gcc_cv_as_hidden="yes"
1827 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1829 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1830 # This is irritatingly difficult to feature test for. Look for
1831 # the date string after the version number.
1832 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1833 if echo "$ld_ver" | grep GNU > /dev/null; then
1835 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\)\([ ].*\|\)$,\1,p'`
1836 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1837 if test 0"$ld_date" -lt 20020404; then
1838 if test -n "$ld_date"; then
1839 # If there was date string, but was earlier than 2002-04-04, fail
1840 gcc_cv_as_hidden="no"
1841 elif test -z "$ld_vers"; then
1842 # If there was no date string nor ld version number, something is wrong
1843 gcc_cv_as_hidden="no"
1845 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1846 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1847 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1848 test -z "$ld_vers_patch" && ld_vers_patch=0
1849 if test "$ld_vers_major" -lt 2; then
1850 gcc_cv_as_hidden="no"
1851 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1852 gcc_cv_as_hidden="no"
1853 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1854 -a "$ld_vers_patch" -eq 0; then
1855 gcc_cv_as_hidden="no"
1864 if test x"$gnu_ld_flag" = x"no"; then
1865 # Even if using gas with .hidden support, the resulting object files
1866 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1867 # N64 linkers, the problem is that the linker refuses to accept
1868 # -call_shared (passed by default to the linker) and -r (used to
1869 # link the object file generated without .hidden directives with
1870 # one that hides symbols), so we also lose.
1875 if test x"$gcc_cv_as_hidden" = xyes; then
1876 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1877 [Define if your assembler supports .hidden.])
1879 AC_MSG_RESULT($gcc_cv_as_hidden)
1880 libgcc_visibility=$gcc_cv_as_hidden
1881 AC_SUBST(libgcc_visibility)
1883 AC_MSG_CHECKING(assembler leb128 support)
1885 if test $in_tree_gas = yes ; then
1886 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
1887 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1888 gcc_cv_as_leb128="yes"
1891 elif test x$gcc_cv_as != x; then
1892 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1893 cat > conftest.s <<EOF
1901 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1902 gcc_cv_as_leb128="yes"
1904 # GAS versions before 2.11 do not support uleb128,
1905 # despite appearing to.
1906 # ??? There exists an elf-specific test that will crash
1907 # the assembler. Perhaps it's better to figure out whether
1908 # arbitrary sections are supported and try the test.
1909 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1910 if echo "$as_ver" | grep GNU > /dev/null; then
1912 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1913 as_major=`echo $as_ver | sed 's/\..*//'`
1914 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1916 if test $as_major -eq 2 -a $as_minor -lt 11; then
1917 gcc_cv_as_leb128="no"
1921 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1923 if test x"$gcc_cv_as_leb128" = xyes; then
1924 AC_DEFINE(HAVE_AS_LEB128, 1,
1925 [Define if your assembler supports .uleb128.])
1927 AC_MSG_RESULT($gcc_cv_as_leb128)
1929 AC_MSG_CHECKING(assembler eh_frame optimization)
1930 gcc_cv_as_eh_frame=no
1931 if test $in_tree_gas = yes ; then
1932 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1933 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1934 gcc_cv_as_eh_frame="yes"
1937 elif test x$gcc_cv_as != x; then
1938 # Check if this is GAS.
1939 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1940 rm -f a.out 2> /dev/null
1941 if echo "$as_ver" | grep GNU > /dev/null; then
1942 # Versions up to and including 2.11.0 may mis-optimize
1943 # .eh_frame data. Try something.
1944 cat > conftest.s <<EOF
1951 .section .eh_frame,"aw",@progbits
1953 .4byte .LECIE1-.LSCIE1
1967 .4byte .LEFDE1-.LASFDE1
1969 .4byte .LASFDE1-__FRAME_BEGIN__
1978 cat > conftest.lit <<EOF
1979 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1980 0010 01000000 12000000 18000000 00000000 ................
1981 0020 08000000 04080000 0044 .........D
1983 cat > conftest.big <<EOF
1984 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1985 0010 00000001 00000012 00000018 00000000 ................
1986 0020 00000008 04000000 0844 .........D
1988 # If the assembler didn't choke, and we can objdump,
1989 # and we got the correct data, then succeed.
1990 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1991 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1992 | tail -3 > conftest.got \
1993 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1994 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1996 gcc_cv_as_eh_frame="yes"
1998 gcc_cv_as_eh_frame="bad"
1999 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
2000 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2001 [Define if your assembler mis-optimizes .eh_frame data.])
2007 AC_MSG_RESULT($gcc_cv_as_eh_frame)
2009 AC_MSG_CHECKING(assembler section merging support)
2010 gcc_cv_as_shf_merge=no
2011 if test $in_tree_gas = yes ; then
2012 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2013 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
2014 gcc_cv_as_shf_merge=yes
2017 elif test x$gcc_cv_as != x; then
2018 # Check if we support SHF_MERGE sections
2019 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
2020 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
2021 gcc_cv_as_shf_merge=yes
2023 rm -f conftest.s conftest.o
2025 if test x"$gcc_cv_as_shf_merge" = xyes; then
2026 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
2027 [Define if your assembler supports marking sections with SHF_MERGE flag.])
2029 AC_MSG_RESULT($gcc_cv_as_shf_merge)
2031 AC_MSG_CHECKING(assembler thread-local storage support)
2041 .section ".tdata","awT",@progbits
2044 ldq $27,__tls_get_addr($29) !literal!1
2045 lda $16,foo($29) !tlsgd!1
2046 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2047 ldq $27,__tls_get_addr($29) !literal!2
2048 lda $16,foo($29) !tlsldm!2
2049 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2050 ldq $1,foo($29) !gotdtprel
2051 ldah $2,foo($29) !dtprelhi
2052 lda $3,foo($2) !dtprello
2053 lda $4,foo($29) !dtprel
2054 ldq $1,foo($29) !gottprel
2055 ldah $2,foo($29) !tprelhi
2056 lda $3,foo($2) !tprello
2057 lda $4,foo($29) !tprel'
2064 .section ".tdata","awT",@progbits
2068 leal foo@TLSGD(,%ebx,1), %eax
2069 leal foo@TLSLDM(%ebx), %eax
2070 leal foo@DTPOFF(%eax), %edx
2071 movl foo@GOTTPOFF(%ebx), %eax
2072 subl foo@GOTTPOFF(%ebx), %eax
2073 addl foo@GOTNTPOFF(%ebx), %eax
2074 movl foo@INDNTPOFF, %eax
2075 movl $foo@TPOFF, %eax
2076 subl $foo@TPOFF, %eax
2077 leal foo@NTPOFF(%ecx), %eax'
2083 .section ".tdata","awT",@progbits
2087 leaq foo@TLSGD(%rip), %rdi
2088 leaq foo@TLSLD(%rip), %rdi
2089 leaq foo@DTPOFF(%rax), %rdx
2090 movq foo@GOTTPOFF(%rip), %rax
2091 movq $foo@TPOFF, %rax'
2097 .section ".tdata","awT",@progbits
2100 addl r16 = @ltoff(@dtpmod(foo#)), gp
2101 addl r17 = @ltoff(@dtprel(foo#)), gp
2102 addl r18 = @ltoff(@tprel(foo#)), gp
2103 addl r19 = @dtprel(foo#), gp
2104 adds r21 = @dtprel(foo#), r13
2105 movl r23 = @dtprel(foo#)
2106 addl r20 = @tprel(foo#), gp
2107 adds r22 = @tprel(foo#), r13
2108 movl r24 = @tprel(foo#)'
2114 .section ".tdata","awT",@progbits
2122 addi 3,31,ld0@got@tlsgd
2124 addi 3,31,x1@got@tlsld
2127 addis 9,3,x2@dtprel@ha
2128 addi 9,9,x2@dtprel@l
2129 lwz 9,x3@got@tprel(31)
2132 addis 9,2,x2@tprel@ha
2133 addi 9,9,x2@tprel@l'
2140 .section ".tdata","awT",@progbits
2148 addi 3,2,ld0@got@tlsgd
2154 addi 3,2,x1@got@tlsld
2160 addis 9,3,x2@dtprel@ha
2161 addi 9,9,x2@dtprel@l
2164 ld 9,x3@got@dtprel(2)
2174 .section ".tdata","awT",@progbits
2183 l %r1,foo@GOTNTPOFF(%r12)
2184 l %r1,0(%r1):tls_load:foo
2185 bas %r14,0(%r1,%r13):tls_gdcall:foo
2186 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2193 .section ".tdata","awT",@progbits
2201 lg %r1,foo@GOTNTPOFF(%r12)
2202 larl %r1,foo@INDNTPOFF
2203 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2204 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2207 tls_as_opt="-m64 -Aesame"
2210 if test -z "$tls_first_major"; then
2212 elif test $in_tree_gas = yes ; then
2213 gcc_GAS_VERSION_GTE_IFELSE($tls_first_major,$tls_first_minor,0,[
2216 elif test x$gcc_cv_as != x; then
2217 echo "$conftest_s" > conftest.s
2218 if $gcc_cv_as $tls_as_opt --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
2222 rm -f conftest.s conftest.o
2224 if test "$gcc_cv_as_tls" = yes; then
2225 AC_DEFINE(HAVE_AS_TLS, 1,
2226 [Define if your assembler supports thread-local storage.])
2228 AC_MSG_RESULT($gcc_cv_as_tls)
2231 # All TARGET_ABI_OSF targets.
2232 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2233 AC_CACHE_CHECK([assembler supports explicit relocations],
2234 gcc_cv_as_explicit_relocs, [
2235 gcc_cv_as_explicit_relocs=unknown
2236 if test $in_tree_gas = yes ; then
2237 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2238 gcc_cv_as_explicit_relocs=yes
2240 elif test x$gcc_cv_as != x; then
2241 cat > conftest.s << 'EOF'
2244 extbl $3, $2, $3 !lituse_bytoff!1
2245 ldq $2, a($29) !literal!1
2246 ldq $4, b($29) !literal!2
2247 ldq_u $3, 0($2) !lituse_base!1
2248 ldq $27, f($29) !literal!5
2249 jsr $26, ($27), f !lituse_jsr!5
2250 ldah $29, 0($26) !gpdisp!3
2251 lda $0, c($29) !gprel
2252 ldah $1, d($29) !gprelhigh
2253 lda $1, d($1) !gprellow
2254 lda $29, 0($29) !gpdisp!3
2256 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2257 gcc_cv_as_explicit_relocs=yes
2259 gcc_cv_as_explicit_relocs=no
2261 rm -f conftest.s conftest.o
2264 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2265 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2266 [Define if your assembler supports explicit relocations.])
2270 AC_CACHE_CHECK([assembler .register pseudo-op support],
2271 gcc_cv_as_register_pseudo_op, [
2272 gcc_cv_as_register_pseudo_op=unknown
2273 if test x$gcc_cv_as != x; then
2274 # Check if we have .register
2275 echo ".register %g2, #scratch" > conftest.s
2276 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2277 gcc_cv_as_register_pseudo_op=yes
2279 gcc_cv_as_register_pseudo_op=no
2281 rm -f conftest.s conftest.o
2284 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2285 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2286 [Define if your assembler supports .register.])
2289 AC_CACHE_CHECK([assembler supports -relax],
2290 gcc_cv_as_relax_opt, [
2291 gcc_cv_as_relax_opt=unknown
2292 if test x$gcc_cv_as != x; then
2293 # Check if gas supports -relax
2294 echo ".text" > conftest.s
2295 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2296 gcc_cv_as_relax_opt=yes
2298 gcc_cv_as_relax_opt=no
2300 rm -f conftest.s conftest.o
2303 if test "x$gcc_cv_as_relax_opt" = xyes; then
2304 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2305 [Define if your assembler supports -relax option.])
2308 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2309 gcc_cv_as_sparc_ua_pcrel, [
2310 gcc_cv_as_sparc_ua_pcrel=unknown
2311 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2312 gcc_cv_as_sparc_ua_pcrel=no
2313 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2314 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2315 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2316 gcc_cv_as_sparc_ua_pcrel=yes
2318 rm -f conftest.s conftest.o conftest
2321 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2322 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2323 [Define if your assembler and linker support unaligned PC relative relocs.])
2326 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2327 gcc_cv_as_sparc_ua_pcrel_hidden, [
2328 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2329 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2330 if test x$gcc_cv_objdump != x; then
2331 gcc_cv_as_sparc_ua_pcrel_hidden=no
2332 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2333 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2334 echo "foo: .skip 4" >> conftest.s
2335 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2336 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2337 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2338 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2339 if $gcc_cv_objdump -R conftest 2> /dev/null \
2340 | grep 'DISP32' > /dev/null 2>&1; then
2343 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2347 rm -f conftest.s conftest.o conftest
2349 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2352 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2353 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2354 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2357 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2358 gcc_cv_as_offsetable_lo10, [
2359 gcc_cv_as_offsetable_lo10=unknown
2360 if test "x$gcc_cv_as" != x; then
2361 # Check if assembler has offsetable %lo()
2362 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2363 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2364 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2366 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2367 > /dev/null 2>&1; then
2368 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2369 gcc_cv_as_offsetable_lo10=no
2371 gcc_cv_as_offsetable_lo10=yes
2374 gcc_cv_as_offsetable_lo10=no
2376 rm -f conftest.s conftest.o conftest1.s conftest1.o
2379 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2380 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2381 [Define if your assembler supports offsetable %lo().])
2387 i[34567]86-*-* | x86_64-*-*)
2389 AC_MSG_CHECKING(assembler instructions)
2390 gcc_cv_as_instructions=
2391 if test $in_tree_gas = yes ; then
2392 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
2393 gcc_cv_as_instructions="filds fists"
2395 elif test x$gcc_cv_as != x; then
2396 set "filds fists" "filds mem; fists mem"
2399 echo "$2" > conftest.s
2400 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2401 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2405 rm -f conftest.s conftest.o
2407 if test x"$gcc_cv_as_instructions" != x; then
2408 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2410 AC_MSG_RESULT($gcc_cv_as_instructions)
2412 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2413 gcc_cv_as_gotoff_in_data=no
2414 if test $in_tree_gas = yes ; then
2415 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2416 gcc_cv_as_gotoff_in_data=yes
2418 elif test x$gcc_cv_as != x; then
2419 cat > conftest.s <<EOF
2426 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2427 gcc_cv_as_gotoff_in_data=yes
2430 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2431 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2432 [Define true if the assembler supports '.long foo@GOTOFF'.])
2433 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2437 AC_CACHE_CHECK([assembler supports ltoffx and ldxmov],
2438 gcc_cv_as_ltoffx_ldxmov_relocs, [
2439 gcc_cv_as_ltoffx_ldxmov_relocs=unknown
2440 if test $in_tree_gas = yes ; then
2441 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2442 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2444 elif test x$gcc_cv_as != x; then
2445 cat > conftest.s << 'EOF'
2448 addl r15 = @ltoffx(x#), gp
2450 ld8.mov r16 = [r15], x#
2453 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2454 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2456 gcc_cv_as_ltoffx_ldxmov_relocs=no
2458 rm -f conftest.s conftest.o
2461 if test "x$gcc_cv_as_ltoffx_ldxmov_relocs" = xyes; then
2462 AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2463 [Define if your assembler supports ltoffx and ldxmov relocations.])
2468 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2469 gcc_cv_as_dwarf2_debug_line=no
2470 # ??? Not all targets support dwarf2 debug_line, even within a version
2471 # of gas. Moreover, we need to emit a valid instruction to trigger any
2472 # info to the output file. So, as supported targets are added to gas 2.11,
2473 # add some instruction here to (also) show we expect this might work.
2474 # ??? Once 2.11 is released, probably need to add first known working
2475 # version to the per-target configury.
2477 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2478 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2479 | xstormy16*-*-* | cris-*-*)
2489 if test $in_tree_gas = yes ; then
2490 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2491 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2492 && test x"$insn" != x ; then
2493 gcc_cv_as_dwarf2_debug_line="yes"
2496 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2497 echo ' .file 1 "conftest.s"' > conftest.s
2498 echo ' .loc 1 3 0' >> conftest.s
2499 echo " $insn" >> conftest.s
2500 # ??? This fails with non-gnu grep.
2501 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2502 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2503 # The .debug_line file table must be in the exact order that
2504 # we specified the files, since these indices are also used
2505 # by DW_AT_decl_file. Approximate this test by testing if
2506 # the assembler bitches if the same index is assigned twice.
2507 echo ' .file 1 "foo.s"' > conftest.s
2508 echo ' .file 1 "bar.s"' >> conftest.s
2509 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2511 gcc_cv_as_dwarf2_debug_line="no"
2513 gcc_cv_as_dwarf2_debug_line="yes"
2516 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2518 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2519 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2520 [Define if your assembler supports dwarf2 .file/.loc directives,
2521 and preserves file table indices exactly as given.])
2523 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2525 AC_MSG_CHECKING(assembler --gdwarf2 support)
2526 gcc_cv_as_gdwarf2_flag=no
2527 if test $in_tree_gas = yes ; then
2528 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2529 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2530 && test x"$insn" != x ; then
2531 gcc_cv_as_gdwarf2_flag="yes"
2534 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2535 echo '' > conftest.s
2536 # ??? This fails with non-gnu grep.
2537 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2539 gcc_cv_as_gdwarf2_flag="yes"
2541 rm -f conftest.s conftest.o
2543 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2544 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2545 [Define if your assembler supports the --gdwarf2 option.])
2547 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2549 AC_MSG_CHECKING(assembler --gstabs support)
2550 gcc_cv_as_gstabs_flag=no
2551 if test $in_tree_gas = yes ; then
2552 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2553 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2554 && test x"$insn" != x ; then
2555 gcc_cv_as_gstabs_flag="yes"
2558 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2559 echo '' > conftest.s
2560 # ??? This fails with non-gnu grep.
2561 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2562 gcc_cv_as_gstabs_flag="yes"
2564 rm -f conftest.s conftest.o
2566 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2567 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2568 [Define if your assembler supports the --gstabs option.])
2570 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2572 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2573 gcc_cv_ld_ro_rw_mix=unknown
2574 if test $in_tree_ld = yes ; then
2575 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2576 gcc_cv_ld_ro_rw_mix=read-write
2578 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2579 echo '.section myfoosect, "a"' > conftest1.s
2580 echo '.section myfoosect, "aw"' > conftest2.s
2581 echo '.byte 1' >> conftest2.s
2582 echo '.section myfoosect, "a"' > conftest3.s
2583 echo '.byte 0' >> conftest3.s
2584 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2585 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2586 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2587 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2588 conftest2.o conftest3.o > /dev/null 2>&1; then
2589 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2590 | sed -e '/myfoosect/!d' -e N`
2591 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2592 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2593 gcc_cv_ld_ro_rw_mix=read-only
2595 gcc_cv_ld_ro_rw_mix=read-write
2600 rm -f conftest.* conftest[123].*
2603 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2604 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2605 [Define if your linker links a mix of read-only
2606 and read-write sections into a read-write section.])
2608 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2610 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2611 gcc_cv_ld_eh_frame_hdr=no
2612 if test $in_tree_ld = yes ; then
2613 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2614 gcc_cv_ld_eh_frame_hdr=yes
2616 elif test x$gcc_cv_ld != x; then
2617 # Check if linker supports --eh-frame-hdr option
2618 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2619 gcc_cv_ld_eh_frame_hdr=yes
2622 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2623 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2624 [Define if your linker supports --eh-frame-hdr option.])
2626 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2628 AC_MSG_CHECKING(linker position independent executable support)
2630 if test $in_tree_ld = yes ; then
2631 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2634 elif test x$gcc_cv_ld != x; then
2635 # Check if linker supports -pie option
2636 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2640 if test x"$gcc_cv_ld_pie" = xyes; then
2641 AC_DEFINE(HAVE_LD_PIE, 1,
2642 [Define if your linker supports -pie option.])
2644 AC_MSG_RESULT($gcc_cv_ld_pie)
2646 # Miscellaneous target-specific checks.
2649 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2650 gcc_cv_mips_libgloss_startup=no
2651 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2652 if test "x$exec_prefix" = xNONE; then
2653 if test "x$prefix" = xNONE; then
2654 test_prefix=/usr/local
2659 test_prefix=$exec_prefix
2661 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2663 if grep '^STARTUP' $f > /dev/null 2>&1; then
2664 gcc_cv_mips_libgloss_startup=yes
2668 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2669 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2670 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2672 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2674 AC_MSG_CHECKING(whether the assembler has explicit relocation support)
2675 if test x$gcc_cv_mips_explicit_relocs = x; then
2676 gcc_cv_mips_explicit_relocs=no
2677 if test $in_tree_gas = yes; then
2678 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2679 gcc_cv_mips_explicit_relocs=yes
2681 elif test x$gcc_cv_as != x; then
2682 echo ' lw $4,%gp_rel(foo)($4)' > conftest.s
2683 if $gcc_cv_as conftest.s -o conftest.o > /dev/null 2>&1; then
2684 gcc_cv_mips_explicit_relocs=yes
2686 rm -f conftest.s conftest.o
2689 if test $gcc_cv_mips_explicit_relocs = yes; then
2690 test x$target_cpu_default != x || target_cpu_default=0
2691 target_cpu_default="(${target_cpu_default}|MASK_EXPLICIT_RELOCS)"
2693 AC_MSG_RESULT($gcc_cv_mips_explicit_relocs)
2697 if test x$with_sysroot = x && test x$host = x$target \
2698 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2699 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2702 # Figure out what language subdirectories are present.
2703 # Look if the user specified --enable-languages="..."; if not, use
2704 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2706 # NB: embedded tabs in this IF block -- do not untabify
2707 if test x"${enable_languages+set}" != xset; then
2708 if test x"${LANGUAGES+set}" = xset; then
2709 enable_languages="${LANGUAGES}"
2710 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2713 enable_languages=all
2716 if test x"${enable_languages}" = x \
2717 || test x"${enable_languages}" = xyes;
2719 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2722 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2724 # First scan to see if an enabled language requires some other language.
2725 # We assume that a given config-lang.in will list all the language
2726 # front ends it requires, even if some are required indirectly.
2727 for lang in ${srcdir}/*/config-lang.in ..
2732 # The odd quoting in the next line works around
2733 # an apparent bug in bash 1.12 on linux.
2735 ${srcdir}/[*]/config-lang.in)
2738 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2739 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2740 for other in $this_lang_requires
2742 case ,${enable_languages}, in
2748 enable_languages="$enable_languages,$other"
2757 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2760 for lang in ${srcdir}/*/config-lang.in ..
2764 # The odd quoting in the next line works around
2765 # an apparent bug in bash 1.12 on linux.
2767 ${srcdir}/[*]/config-lang.in) ;;
2769 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2770 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2771 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2772 if test "x$lang_alias" = x
2774 echo "$lang doesn't set \$language." 1>&2
2777 case ${build_by_default},${enable_languages}, in
2778 *,$lang_alias,*) add_this_lang=yes ;;
2779 no,*) add_this_lang=no ;;
2780 *,all,*) add_this_lang=yes ;;
2781 *) add_this_lang=no ;;
2783 found_languages="${found_languages} ${lang_alias}"
2784 if test x"${add_this_lang}" = xyes; then
2786 ${srcdir}/ada/config-lang.in)
2787 if test x$have_gnat = xyes ; then
2788 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2792 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2802 for expected_language in ${expected_languages} ..
2804 if test "${expected_language}" != ..; then
2805 missing_language="${expected_language}"
2806 if test "${expected_language}" = "c" \
2807 || test "${expected_language}" = "all"; then
2810 for found_language in ${found_languages} ..
2812 if test "${found_language}" != ..; then
2813 if test "${expected_language}" = "${found_language}"; then
2818 if test "x${missing_language}" != x; then
2819 missing_languages="${missing_languages} ${missing_language}"
2824 if test "x$missing_languages" != x; then
2826 The following requested languages were not found:${missing_languages}
2827 The following languages were available: c${found_languages}])
2830 # Make gthr-default.h if we have a thread file.
2832 if test $thread_file != single; then
2833 rm -f gthr-default.h
2834 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2835 gthread_flags=-DHAVE_GTHR_DEFAULT
2837 AC_SUBST(gthread_flags)
2839 # Find out what GC implementation we want, or may, use.
2841 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2848 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2853 echo "Using $GGC for garbage collection."
2855 # Use the system's zlib library.
2857 zlibinc="-I\$(srcdir)/../zlib"
2858 AC_ARG_WITH(system-zlib,
2859 [ --with-system-zlib use installed libz],
2866 dnl Very limited version of automake's enable-maintainer-mode
2868 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2869 dnl maintainer-mode is disabled by default
2870 AC_ARG_ENABLE(maintainer-mode,
2871 [ --enable-maintainer-mode
2872 enable make rules and dependencies not useful
2873 (and sometimes confusing) to the casual installer],
2874 maintainer_mode=$enableval,
2877 AC_MSG_RESULT($maintainer_mode)
2879 if test "$maintainer_mode" = "yes"; then
2886 # Make empty files to contain the specs and options for each language.
2887 # Then add #include lines to for a compiler that has specs and/or options.
2893 for subdir in . $subdirs
2895 if test -f $srcdir/$subdir/lang.opt; then
2896 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2898 if test -f $srcdir/$subdir/lang-specs.h; then
2899 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2901 if test -f $srcdir/$subdir/lang-options.h; then
2902 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2904 if test -f $srcdir/$subdir/$subdir-tree.def; then
2905 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2909 # These (without "all_") are set in each config-lang.in.
2910 # `language' must be a single word so is spelled singularly.
2915 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2916 # List of language makefile fragments.
2918 # Files for gengtype
2919 all_gtfiles="$target_gtfiles"
2920 # Files for gengtype with language
2921 all_gtfiles_files_langs=
2922 all_gtfiles_files_files=
2924 # Add the language fragments.
2925 # Languages are added via two mechanisms. Some information must be
2926 # recorded in makefile variables, these are defined in config-lang.in.
2927 # We accumulate them and plug them into the main Makefile.
2928 # The other mechanism is a set of hooks for each of the main targets
2929 # like `clean', `install', etc.
2931 language_fragments="Make-lang"
2932 language_hooks="Make-hooks"
2934 for s in .. $subdirs
2944 . ${srcdir}/$s/config-lang.in
2945 if test "x$language" = x
2947 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2950 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2951 if test -f ${srcdir}/$s/Makefile.in
2952 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2954 all_languages="$all_languages $language"
2955 if test "x$boot_language" = xyes
2957 all_boot_languages="$all_boot_languages $language"
2959 all_compilers="$all_compilers $compilers"
2960 all_stagestuff="$all_stagestuff $stagestuff"
2961 all_outputs="$all_outputs $outputs"
2962 all_gtfiles="$all_gtfiles $gtfiles"
2963 for f in .. $gtfiles
2967 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2968 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2974 # Pick up gtfiles for c
2977 . ${srcdir}/c-config-lang.in
2978 all_gtfiles="$all_gtfiles $gtfiles"
2979 for f in .. $gtfiles
2983 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2984 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2989 for language in .. $all_languages
2991 if test $language != ".."
2993 check_languages="$check_languages check-$language"
2997 # Since we can't use `::' targets, we link each language in
2998 # with a set of hooks, reached indirectly via lang.${target}.
3002 target_list="all.build all.cross start.encap rest.encap tags \
3003 info dvi generated-manpages \
3004 install-normal install-common install-info install-man \
3006 mostlyclean clean distclean extraclean maintainer-clean \
3007 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3008 for t in $target_list
3011 for lang in .. $all_languages
3013 if test $lang != ".."; then
3017 echo "lang.$t: $x" >> Make-hooks
3022 echo "dir ." > .gdbinit
3023 echo "dir ${srcdir}" >> .gdbinit
3024 if test x$gdb_needs_out_file_path = xyes
3026 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3028 if test "x$subdirs" != x; then
3031 echo "dir ${srcdir}/$s" >> .gdbinit
3034 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3036 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3037 # absolute path for gcc_tooldir based on inserting the number of up-directory
3038 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3039 # $(libsubdir)/@(unlibsubdir) based path.
3040 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3041 # make and thus we'd get different behavior depending on where we built the
3043 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3044 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
3046 changequote(<<, >>)dnl
3047 # An explanation of the sed strings:
3048 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3049 # -e 's|/$||' match a trailing forward slash and eliminates it
3050 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3051 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3053 # (*) Note this pattern overwrites the first character of the string
3054 # with a forward slash if one is not already present. This is not a
3055 # problem because the exact names of the sub-directories concerned is
3056 # unimportant, just the number of them matters.
3058 # The practical upshot of these patterns is like this:
3060 # prefix exec_prefix result
3061 # ------ ----------- ------
3063 # /foo/ /foo/bar ../
3064 # /foo /foo/bar/ ../
3065 # /foo/ /foo/bar/ ../
3066 # /foo /foo/bar/ugg ../../
3069 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
3070 changequote([, ])dnl
3072 AC_SUBST(gcc_tooldir)
3075 # Find a directory in which to install a shared libgcc.
3077 AC_ARG_ENABLE(version-specific-runtime-libs,
3078 [ --enable-version-specific-runtime-libs
3079 specify that runtime libraries should be
3080 installed in a compiler-specific directory])
3082 AC_ARG_WITH(slibdir,
3083 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3084 slibdir="$with_slibdir",
3085 if test "${enable_version_specific_runtime_libs+set}" = set; then
3086 slibdir='$(libsubdir)'
3087 elif test "$host" != "$target"; then
3088 slibdir='$(build_tooldir)/lib'
3094 objdir=`${PWDCMD-pwd}`
3097 # Process the language and host/target makefile fragments.
3098 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
3100 # Substitute configuration variables
3103 AC_SUBST(all_boot_languages)
3104 AC_SUBST(all_compilers)
3105 AC_SUBST(all_gtfiles)
3106 AC_SUBST(all_gtfiles_files_langs)
3107 AC_SUBST(all_gtfiles_files_files)
3108 AC_SUBST(all_lang_makefiles)
3109 AC_SUBST(all_languages)
3110 AC_SUBST(all_stagestuff)
3111 AC_SUBST(build_exeext)
3112 AC_SUBST(build_install_headers_dir)
3113 AC_SUBST(build_xm_file_list)
3114 AC_SUBST(build_xm_file)
3115 AC_SUBST(build_xm_defines)
3116 AC_SUBST(check_languages)
3117 AC_SUBST(cc_set_by_configure)
3118 AC_SUBST(quoted_cc_set_by_configure)
3119 AC_SUBST(cpp_install_dir)
3120 AC_SUBST(dep_host_xmake_file)
3121 AC_SUBST(dep_tmake_file)
3122 AC_SUBST(extra_headers_list)
3123 AC_SUBST(extra_objs)
3124 AC_SUBST(extra_parts)
3125 AC_SUBST(extra_passes)
3126 AC_SUBST(extra_programs)
3127 AC_SUBST(float_h_file)
3128 AC_SUBST(gcc_config_arguments)
3129 AC_SUBST(gcc_gxx_include_dir)
3130 AC_SUBST(libstdcxx_incdir)
3131 AC_SUBST(gcc_version)
3132 AC_SUBST(gcc_version_full)
3133 AC_SUBST(gcc_version_trigger)
3134 AC_SUBST(host_exeext)
3135 AC_SUBST(host_extra_gcc_objs)
3136 AC_SUBST(host_xm_file_list)
3137 AC_SUBST(host_xm_file)
3138 AC_SUBST(host_xm_defines)
3139 AC_SUBST(out_host_hook_obj)
3141 AC_SUBST(lang_opt_files)
3142 AC_SUBST(lang_options_files)
3143 AC_SUBST(lang_specs_files)
3144 AC_SUBST(lang_tree_files)
3145 AC_SUBST(local_prefix)
3147 AC_SUBST(objc_boehm_gc)
3149 AC_SUBST(out_object_file)
3150 AC_SUBST(stage_prefix_set_by_configure)
3151 AC_SUBST(quoted_stage_prefix_set_by_configure)
3152 AC_SUBST(symbolic_link)
3153 AC_SUBST(thread_file)
3154 AC_SUBST(tm_file_list)
3156 AC_SUBST(tm_defines)
3157 AC_SUBST(tm_p_file_list)
3160 AC_SUBST(xm_defines)
3161 AC_SUBST(target_alias)
3162 AC_SUBST(c_target_objs)
3163 AC_SUBST(cxx_target_objs)
3164 AC_SUBST(target_cpu_default)
3166 AC_SUBST_FILE(target_overrides)
3167 AC_SUBST_FILE(host_overrides)
3168 AC_SUBST_FILE(language_fragments)
3169 AC_SUBST_FILE(language_hooks)
3171 # Echo that links are built
3172 if test x$host = x$target
3180 if test x$host != x$build
3182 str3=" on a $build system"
3185 if test "x$str2" != x || test "x$str3" != x
3190 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3192 if test "x$str2" != x || test "x$str3" != x
3194 echo " ${str2}${str3}." 1>&2
3197 # Configure the subdirectories
3198 # AC_CONFIG_SUBDIRS($subdirs)
3200 # Create the Makefile
3201 # and configure language subdirectories
3202 AC_OUTPUT($all_outputs,
3204 case x$CONFIG_HEADERS in
3205 xauto-host.h:config.in)
3208 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3209 # bootstrapping and the installation procedure can still use
3210 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3211 # FLAGS_TO_PASS has been modified to solve the problem there.
3212 # This is virtually a duplicate of what happens in configure.lang; we do
3213 # an extra check to make sure this only happens if ln -s can be used.
3214 if test "$symbolic_link" = "ln -s"; then
3215 for d in .. ${subdirs} fixinc ; do
3216 if test $d != ..; then
3217 STARTDIR=`${PWDCMD-pwd}`
3219 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3222 $symbolic_link ../$t $t 2>/dev/null
3228 # Avoid having to add intl to our include paths.
3229 if test -f intl/libintl.h; then
3230 echo creating libintl.h
3231 echo '#include "intl/libintl.h"' >libintl.h
3235 symbolic_link='$symbolic_link'