2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
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_SRCDIR(tree.c)
31 AC_CONFIG_HEADER(auto-host.h:config.in)
33 #Set to 1 on a release branch
36 # Determine the host, build, and target systems
41 # Determine the noncanonical target name, for directory use.
42 ACX_NONCANONICAL_TARGET
44 # Determine the target- and build-specific subdirectories
47 # Set program_transform_name
50 # Check for bogus environment variables.
51 # Test if LIBRARY_PATH contains the notation for the current directory
52 # since this would lead to problems installing/building glibc.
53 # LIBRARY_PATH contains the current directory if one of the following
55 # - one of the terminals (":" and ";") is the first or last sign
56 # - two terminals occur directly after each other
57 # - the path contains an element with a dot in it
58 AC_MSG_CHECKING(LIBRARY_PATH variable)
60 case ${LIBRARY_PATH} in
61 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
62 library_path_setting="contains current directory"
65 library_path_setting="ok"
69 AC_MSG_RESULT($library_path_setting)
70 if test "$library_path_setting" != "ok"; then
72 *** LIBRARY_PATH shouldn't contain the current directory when
73 *** building gcc. Please change the environment variable
74 *** and run configure again.])
77 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
78 # since this would lead to problems installing/building glibc.
79 # GCC_EXEC_PREFIX contains the current directory if one of the following
81 # - one of the terminals (":" and ";") is the first or last sign
82 # - two terminals occur directly after each other
83 # - the path contains an element with a dot in it
84 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
86 case ${GCC_EXEC_PREFIX} in
87 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
88 gcc_exec_prefix_setting="contains current directory"
91 gcc_exec_prefix_setting="ok"
95 AC_MSG_RESULT($gcc_exec_prefix_setting)
96 if test "$gcc_exec_prefix_setting" != "ok"; then
98 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
99 *** building gcc. Please change the environment variable
100 *** and run configure again.])
107 # Specify the local prefix
109 AC_ARG_WITH(local-prefix,
110 [ --with-local-prefix=DIR specifies directory to put local include],
111 [case "${withval}" in
112 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
114 *) local_prefix=$with_local_prefix ;;
117 # Default local prefix if it is empty
118 if test x$local_prefix = x; then
119 local_prefix=/usr/local
122 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
123 # passed in by the toplevel make and thus we'd get different behavior
124 # depending on where we built the sources.
126 # Specify the g++ header file directory
127 AC_ARG_WITH(gxx-include-dir,
128 [ --with-gxx-include-dir=DIR
129 specifies directory to put g++ header files],
130 [case "${withval}" in
131 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
133 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
136 if test x${gcc_gxx_include_dir} = x; then
137 if test x${enable_version_specific_runtime_libs} = xyes; then
138 gcc_gxx_include_dir='${libsubdir}/include/c++'
140 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
141 changequote(<<, >>)dnl
142 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
147 AC_ARG_WITH(cpp_install_dir,
148 [ --with-cpp-install-dir=DIR
149 install the user visible C preprocessor in DIR
150 (relative to PREFIX) as well as PREFIX/bin],
151 [if test x$withval = xyes; then
152 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
153 elif test x$withval != xno; then
154 cpp_install_dir=$withval
157 # We would like to our source tree to be readonly. However when releases or
158 # pre-releases are generated, the flex/bison generated files as well as the
159 # various formats of manuals need to be included along with the rest of the
160 # sources. Therefore we have --enable-generated-files-in-srcdir to do
163 AC_MSG_CHECKING([whether to place generated files in the source directory])
164 dnl generated-files-in-srcdir is disabled by default
165 AC_ARG_ENABLE(generated-files-in-srcdir,
166 [ --enable-generated-files-in-srcdir
167 put copies of generated files in source dir
168 intended for creating source tarballs for users
169 without texinfo bison or flex.],
170 generated_files_in_srcdir=$enableval,
171 generated_files_in_srcdir=no)
173 AC_MSG_RESULT($generated_files_in_srcdir)
175 if test "$generated_files_in_srcdir" = "yes"; then
182 # -------------------
183 # Find default linker
184 # -------------------
188 [ --with-gnu-ld arrange to work with GNU ld.],
189 gnu_ld_flag="$with_gnu_ld",
192 # With pre-defined ld
194 [ --with-ld arrange to use the specified ld (full pathname)],
195 DEFAULT_LINKER="$with_ld")
196 if test x"${DEFAULT_LINKER+set}" = x"set"; then
197 if test ! -x "$DEFAULT_LINKER"; then
198 AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
199 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
202 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
203 [Define to enable the use of a default linker.])
206 AC_MSG_CHECKING([whether a default linker was specified])
207 if test x"${DEFAULT_LINKER+set}" = x"set"; then
208 if test x"$gnu_ld_flag" = x"no"; then
209 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
211 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
217 # With demangler in GNU ld
218 AC_ARG_WITH(demangler-in-ld,
219 [ --with-demangler-in-ld try to use demangler in GNU ld.],
220 demangler_in_ld="$with_demangler_in_ld",
223 # ----------------------
224 # Find default assembler
225 # ----------------------
229 [ --with-gnu-as arrange to work with GNU as],
230 gas_flag="$with_gnu_as",
234 [ --with-as arrange to use the specified as (full pathname)],
235 DEFAULT_ASSEMBLER="$with_as")
236 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
237 if test ! -x "$DEFAULT_ASSEMBLER"; then
238 AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
239 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
242 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
243 [Define to enable the use of a default assembler.])
246 AC_MSG_CHECKING([whether a default assembler was specified])
247 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
248 if test x"$gas_flag" = x"no"; then
249 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
251 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
261 # If a non-executable a.out is present (e.g. created by GNU as above even if
262 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
263 # file, even when creating an executable, so an execution test fails.
264 # Remove possible default executable files to avoid this.
266 # FIXME: This really belongs into AC_PROG_CC and can be removed once
267 # Autoconf includes it.
268 rm -f a.out a.exe b.out
270 # Find the native compiler
273 # autoconf is lame and doesn't give us any substitution variable for this.
274 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
275 NO_MINUS_C_MINUS_O=yes
277 OUTPUT_OPTION='-o $@'
279 AC_SUBST(NO_MINUS_C_MINUS_O)
280 AC_SUBST(OUTPUT_OPTION)
282 # -------------------------
283 # Check C compiler features
284 # -------------------------
291 # sizeof(char) is 1 by definition.
292 AC_CHECK_SIZEOF(void *)
293 AC_CHECK_SIZEOF(short)
295 AC_CHECK_SIZEOF(long)
296 if test $ac_cv_c_long_long = yes; then
297 AC_CHECK_SIZEOF(long long)
299 if test $ac_cv_c___int64 = yes; then
300 AC_CHECK_SIZEOF(__int64)
303 # ---------------------
304 # Warnings and checking
305 # ---------------------
307 # Check $CC warning features (if it's GCC).
308 # We want to use -pedantic, but we don't want warnings about
311 # So, we only use -pedantic if we can disable those warnings.
314 [whether ${CC} accepts -Wno-long-long],
315 [ac_cv_prog_cc_w_no_long_long],
316 [save_CFLAGS="$CFLAGS"
317 CFLAGS="-Wno-long-long"
318 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
319 [ac_cv_prog_cc_w_no_long_long=yes],
320 [ac_cv_prog_cc_w_no_long_long=no])
321 CFLAGS="$save_CFLAGS"
325 [whether ${CC} accepts -Wno-variadic-macros],
326 [ac_cv_prog_cc_w_no_variadic_macros],
327 [save_CFLAGS="$CFLAGS"
328 CFLAGS="-Wno-variadic-macros"
329 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
330 [ac_cv_prog_cc_w_no_variadic_macros=yes],
331 [ac_cv_prog_cc_w_no_variadic_macros=no])
332 CFLAGS="$save_CFLAGS"
336 if test $ac_cv_prog_cc_w_no_long_long = yes \
337 && test $ac_cv_prog_cc_w_no_variadic_macros = yes ; then
338 strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros"
340 AC_SUBST(strict1_warn)
342 # Add -Wold-style-definition if it's accepted
344 [whether ${CC} accepts -Wold-style-definition],
345 [ac_cv_prog_cc_w_old_style_definition],
346 [save_CFLAGS="$CFLAGS"
347 CFLAGS="-Wold-style-definition"
348 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
349 [ac_cv_prog_cc_w_old_style_definition=yes],
350 [ac_cv_prog_cc_w_old_style_definition=no])
351 CFLAGS="$save_CFLAGS"
353 if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
354 strict1_warn="${strict1_warn} -Wold-style-definition"
357 # Enable -Werror, period.
358 AC_ARG_ENABLE(werror_always,
359 [ --enable-werror-always enable -Werror always], [],
360 [enable_werror_always=no])
361 if test x${enable_werror_always} = xyes ; then
362 strict1_warn="${strict1_warn} -Werror"
366 # If the native compiler is GCC, we can enable warnings even in stage1.
367 # That's useful for people building cross-compilers, or just running a
370 if test "x$GCC" = "xyes"; then
371 warn_cflags='$(GCC_WARN_CFLAGS)'
373 AC_SUBST(warn_cflags)
375 # Enable -Werror in bootstrap stage2 and later.
376 AC_ARG_ENABLE(werror,
377 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
378 [if test x$is_release = x ; then
379 # Default to "yes" on development branches.
382 # Default to "no" on release branches.
385 if test x$enable_werror = xyes ; then
390 # Enable expensive internal checks
391 AC_ARG_ENABLE(checking,
392 [ --enable-checking[=LIST]
393 enable expensive run-time checks. With LIST,
394 enable only specific categories of checks.
395 Categories are: assert,fold,gc,gcac,misc,
396 rtlflag,rtl,tree,valgrind,release,yes,all;],
397 [ac_checking_flags="${enableval}"],[
398 # Determine the default checks.
399 if test x$is_release = x ; then
400 ac_checking_flags=yes
402 ac_checking_flags=release
410 ac_gc_always_collect=
412 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
413 for check in $ac_checking_flags
416 yes) ac_assert_checking=1 ; ac_checking=1 ;
417 ac_tree_checking=1 ; ac_gc_checking=1 ;
418 ac_rtlflag_checking=1 ;;
419 no) ac_assert_checking= ; ac_checking= ;
420 ac_tree_checking= ; ac_rtl_checking= ;
421 ac_rtlflag_checking= ; ac_gc_checking= ;
422 ac_gc_always_collect= ; ac_fold_checking= ;;
423 all) ac_assert_checking=1 ; ac_checking=1 ;
424 ac_tree_checking=1 ; ac_rtl_checking=1 ;
425 ac_rtlflag_checking=1 ; ac_gc_checking=1 ;
426 ac_gc_always_collect=1 ; ac_fold_checking=1 ;;
427 release) ac_assert_checking=1 ;;
428 assert) ac_assert_checking=1 ;;
429 fold) ac_fold_checking=1 ;;
430 gc) ac_gc_checking=1 ;;
431 gcac) ac_gc_always_collect=1 ;;
432 misc) ac_checking=1 ;;
433 rtlflag) ac_rtlflag_checking=1 ;;
434 rtl) ac_rtl_checking=1 ;;
435 tree) ac_tree_checking=1 ;;
436 valgrind) ac_checking_valgrind=1 ;;
437 *) AC_MSG_ERROR(unknown check category $check) ;;
443 if test x$ac_checking != x ; then
444 AC_DEFINE(ENABLE_CHECKING, 1,
445 [Define if you want more run-time sanity checks. This one gets a grab
446 bag of miscellaneous but relatively cheap checks.])
447 nocommon_flag=-fno-common
449 AC_SUBST(nocommon_flag)
450 if test x$ac_assert_checking != x ; then
451 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
452 [Define if you want assertions enabled. This is a cheap check.])
454 if test x$ac_tree_checking != x ; then
455 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
456 [Define if you want all operations on trees (the basic data
457 structure of the front ends) to be checked for dynamic type safety
458 at runtime. This is moderately expensive. The tree browser debugging
459 routines will also be enabled by this option.
461 TREEBROWSER=tree-browser.o
463 AC_SUBST(TREEBROWSER)
464 if test x$ac_rtl_checking != x ; then
465 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
466 [Define if you want all operations on RTL (the basic data structure
467 of the optimizer and back end) to be checked for dynamic type safety
468 at runtime. This is quite expensive.])
470 if test x$ac_rtlflag_checking != x ; then
471 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
472 [Define if you want RTL flag accesses to be checked against the RTL
473 codes that are supported for each access macro. This is relatively
476 if test x$ac_gc_checking != x ; then
477 AC_DEFINE(ENABLE_GC_CHECKING, 1,
478 [Define if you want the garbage collector to do object poisoning and
479 other memory allocation checks. This is quite expensive.])
481 if test x$ac_gc_always_collect != x ; then
482 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
483 [Define if you want the garbage collector to operate in maximally
484 paranoid mode, validating the entire heap and collecting garbage at
485 every opportunity. This is extremely expensive.])
487 if test x$ac_fold_checking != x ; then
488 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
489 [Define if you want fold checked that it never destructs its argument.
490 This is quite expensive.])
492 valgrind_path_defines=
495 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
496 dnl # an if statement. This was the source of very frustrating bugs
497 dnl # in converting to autoconf 2.5x!
498 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
500 if test x$ac_checking_valgrind != x ; then
501 # It is certainly possible that there's valgrind but no valgrind.h.
502 # GCC relies on making annotations so we must have both.
503 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
505 [#include <valgrind/memcheck.h>
506 #ifndef VALGRIND_DISCARD
507 #error VALGRIND_DISCARD not defined
509 [gcc_cv_header_valgrind_memcheck_h=yes],
510 [gcc_cv_header_valgrind_memcheck_h=no])
511 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
512 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
514 [#include <memcheck.h>
515 #ifndef VALGRIND_DISCARD
516 #error VALGRIND_DISCARD not defined
518 [gcc_cv_header_memcheck_h=yes],
519 gcc_cv_header_memcheck_h=no)
520 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
521 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
522 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
523 if test "x$valgrind_path" = "x" \
524 || (test $have_valgrind_h = no \
525 && test $gcc_cv_header_memcheck_h = no \
526 && test $gcc_cv_header_valgrind_memcheck_h = no); then
527 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
529 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
530 valgrind_command="$valgrind_path -q"
531 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
532 [Define if you want to run subprograms and generated programs
533 through valgrind (a memory checker). This is extremely expensive.])
534 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
535 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
536 [Define if valgrind's valgrind/memcheck.h header is installed.])
538 if test $gcc_cv_header_memcheck_h = yes; then
539 AC_DEFINE(HAVE_MEMCHECK_H, 1,
540 [Define if valgrind's memcheck.h header is installed.])
543 AC_SUBST(valgrind_path_defines)
544 AC_SUBST(valgrind_command)
546 AC_ARG_ENABLE(mapped-location,
547 [ --enable-mapped-location location_t is fileline integer cookie],,
548 enable_mapped_location=no)
550 if test "$enable_mapped_location" = yes ; then
551 AC_DEFINE(USE_MAPPED_LOCATION, 1,
552 [Define if location_t is fileline integer cookie.])
555 # Enable code coverage collection
556 AC_ARG_ENABLE(coverage,
557 [ --enable-coverage[=LEVEL]
558 enable compiler's code coverage collection.
559 Use to measure compiler performance and locate
560 unused parts of the compiler. With LEVEL, specify
561 optimization. Values are opt, noopt,
563 [case "${enableval}" in
565 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
568 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
571 # a.k.a. --disable-coverage
575 AC_MSG_ERROR(unknown coverage setting $enableval)
579 AC_SUBST(coverage_flags)
581 AC_ARG_ENABLE(gather-detailed-mem-stats,
582 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
583 [enable_gather_detailed_mem_stats=no])
584 if test x$enable_gather_detailed_mem_stats = xyes ; then
585 AC_DEFINE(GATHER_STATISTICS, 1,
586 [Define to enable detailed memory allocation stats gathering.])
589 # -------------------------------
590 # Miscenalleous configure options
591 # -------------------------------
595 [ --with-stabs arrange to use stabs instead of host debug format],
599 # Determine whether or not multilibs are enabled.
600 AC_ARG_ENABLE(multilib,
601 [ --enable-multilib enable library support for multiple ABIs],
602 [], [enable_multilib=yes])
603 AC_SUBST(enable_multilib)
605 # Enable __cxa_atexit for C++.
606 AC_ARG_ENABLE(__cxa_atexit,
607 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
611 # Pass with no value to take the default
612 # Pass with a value to specify a thread package
613 AC_ARG_ENABLE(threads,
614 [ --enable-threads enable thread usage for target GCC
615 --enable-threads=LIB use LIB thread package for target GCC],,
618 AC_ARG_ENABLE(objc-gc,
619 [ --enable-objc-gc enable the use of Boehm's garbage collector with
620 the GNU Objective-C runtime],
621 if test x$enable_objc_gc = xno; then
629 [ --with-dwarf2 force the default debug format to be DWARF 2],
630 dwarf2="$with_dwarf2",
633 AC_ARG_ENABLE(shared,
634 [ --disable-shared don't provide a shared libgcc],
636 case $enable_shared in
640 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
641 for pkg in $enableval; do
642 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
649 ], [enable_shared=yes])
650 AC_SUBST(enable_shared)
653 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
655 case ${with_sysroot} in
656 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
657 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
660 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
661 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
663 if test "x$exec_prefix" = xNONE; then
664 if test "x$prefix" = xNONE; then
665 test_prefix=/usr/local
670 test_prefix=$exec_prefix
672 case ${TARGET_SYSTEM_ROOT} in
673 "${test_prefix}"|"${test_prefix}/"*|\
674 '${exec_prefix}'|'${exec_prefix}/'*)
675 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
676 TARGET_SYSTEM_ROOT_DEFINE="$t"
681 TARGET_SYSTEM_ROOT_DEFINE=
682 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
684 AC_SUBST(TARGET_SYSTEM_ROOT)
685 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
686 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
688 # Build with intermodule optimisations
689 AC_ARG_ENABLE(intermodule,
690 [ --enable-intermodule build the compiler in one step],
691 [case ${enable_intermodule} in
692 yes) onestep="-onestep";;
698 # Sanity check enable_languages in case someone does not run the toplevel
699 # configure # script.
700 AC_ARG_ENABLE(languages,
701 [ --enable-languages=LIST specify which front-ends to build],
702 [case ,${enable_languages}, in
704 # go safe -- we cannot be much sure without the toplevel
706 # analysis of which target libs are present and usable
710 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
715 enable_languages=c,${enable_languages}
718 [enable_languages=c])
721 for lang in ${srcdir}/*/config-lang.in
724 # The odd quoting in the next line works around
725 # an apparent bug in bash 1.12 on linux.
727 ${srcdir}/[*]/config-lang.in) ;;
729 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
730 if test "x$lang_alias" = x
732 echo "$lang doesn't set \$language." 1>&2
735 case ",$enable_languages," in
737 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
745 # -------------------------
746 # Checks for other programs
747 # -------------------------
751 # Find some useful tools
753 # We need awk to create options.c and options.h.
754 # Bail out if it's missing.
756 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
764 # By default, the Darwin ranlib will not treat common symbols as
765 # definitions when building the archive table of contents. Other
766 # ranlibs do that; pass an option to the Darwin ranlib that makes
767 # it behave similarly.
773 AC_SUBST(ranlib_flags)
777 # See if cmp has --ignore-initial.
778 gcc_AC_PROG_CMP_IGNORE_INITIAL
780 # See if we have the mktemp command.
781 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
783 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
785 # See if makeinfo has been installed and is modern enough
786 # that we can use it.
787 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
788 [GNU texinfo.* \([0-9][0-9.]*\)],
790 if test $gcc_cv_prog_makeinfo_modern = no; then
791 MAKEINFO="$MISSING makeinfo"
793 *** Makeinfo is missing or too old.
794 *** Info documentation will not be built.])
801 # Is pod2man recent enough to regenerate manpages?
802 AC_MSG_CHECKING([for recent Pod::Man])
803 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
805 GENERATED_MANPAGES=generated-manpages
810 AC_SUBST(GENERATED_MANPAGES)
813 dnl Don't use AC_PROG_LEX; we insist on flex.
814 dnl LEXLIB is not useful in gcc.
815 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
818 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
820 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
821 # check for build == host before using them.
824 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
825 && test -d ../binutils ; then
826 NM='$(objdir)/../binutils/nm-new'
828 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
832 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
833 && test -d ../binutils ; then
834 AR='$(objdir)/../binutils/ar'
836 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
840 # --------------------
841 # Checks for C headers
842 # --------------------
844 AC_MSG_CHECKING(for GNU C library)
845 AC_CACHE_VAL(gcc_cv_glibc,
847 [#include <features.h>],[
848 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
849 #error Not a GNU C library system
853 AC_MSG_RESULT($gcc_cv_glibc)
854 if test $gcc_cv_glibc = yes; then
855 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
858 # Need to reject headers which give warnings, so that the -Werror bootstrap
859 # works later. *sigh* This needs to come before all header checks.
866 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
867 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
868 sys/resource.h sys/param.h sys/times.h sys/stat.h \
869 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
871 # Check for thread headers.
872 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
873 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
875 # These tests can't be done till we know if we have limits.h.
883 # Stage specific cflags for build.
889 stage1_cflags="-Wa,-J"
895 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
896 # sources; use -no-cpp-precomp to get to GNU cpp.
897 # Apple's GCC has bugs in designated initializer handling, so disable
899 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
902 AC_SUBST(stage1_cflags)
904 # These libraries may be used by collect2.
905 # We may need a special search path to get them linked.
906 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
908 for libs in '' -lld -lmld \
909 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
910 '-L/usr/lib/cmplrs/cc3.11 -lmld'
913 AC_TRY_LINK_FUNC(ldopen,
914 [gcc_cv_collect2_libs="$libs"; break])
917 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
918 case $gcc_cv_collect2_libs in
920 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
922 AC_SUBST(COLLECT2_LIBS)
924 # When building Ada code on Alpha, we need exc_resume which is usually in
925 # -lexc. So test for it.
928 AC_SEARCH_LIBS(exc_resume, exc)
931 AC_SUBST(GNAT_LIBEXC)
933 # Some systems put ldexp and frexp in libm instead of libc; assume
934 # they're both in the same place. jcf-dump needs them.
937 AC_SEARCH_LIBS(ldexp, m)
942 # Use <inttypes.h> only if it exists,
943 # doesn't clash with <sys/types.h>, and declares intmax_t.
944 AC_MSG_CHECKING(for inttypes.h)
945 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
947 [#include <sys/types.h>
948 #include <inttypes.h>],
950 [gcc_cv_header_inttypes_h=yes],
951 gcc_cv_header_inttypes_h=no)])
952 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
953 if test $gcc_cv_header_inttypes_h = yes; then
954 AC_DEFINE(HAVE_INTTYPES_H, 1,
955 [Define if you have a working <inttypes.h> header file.])
958 dnl Disabled until we have a complete test for buggy enum bitfields.
959 dnl gcc_AC_C_ENUM_BF_UNSIGNED
961 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
962 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
963 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
964 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
967 if test x$ac_cv_func_mbstowcs = xyes; then
968 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
969 [ AC_TRY_RUN([#include <stdlib.h>
975 gcc_cv_func_mbstowcs_works=yes,
976 gcc_cv_func_mbstowcs_works=no,
977 gcc_cv_func_mbstowcs_works=yes)])
978 if test x$gcc_cv_func_mbstowcs_works = xyes; then
979 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
980 [Define this macro if mbstowcs does not crash when its
981 first argument is NULL.])
985 AC_CHECK_TYPE(ssize_t, int)
987 # Try to determine the array type of the second argument of getgroups
988 # for the target system (int or gid_t).
990 if test "${target}" = "${build}"; then
991 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
994 # This condition may need some tweaking. It should include all
995 # targets where the array type of the second argument of getgroups
996 # is int and the type of gid_t is not equivalent to int.
997 *-*-sunos* | *-*-ultrix*)
998 TARGET_GETGROUPS_T=int
1001 TARGET_GETGROUPS_T=gid_t
1005 AC_SUBST(TARGET_GETGROUPS_T)
1007 gcc_AC_FUNC_PRINTF_PTR
1008 gcc_AC_FUNC_MMAP_BLACKLIST
1012 # Under VMS, vfork works very differently than on Unix. The standard test
1013 # won't work, and it isn't easily adaptable. It makes more sense to
1015 ac_cv_func_vfork_works=yes
1021 # Until we have in-tree GNU iconv:
1023 AC_SUBST(LIBICONV_DEP)
1029 # We will need to find libiberty.h and ansidecl.h
1030 saved_CFLAGS="$CFLAGS"
1031 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1032 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
1033 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
1034 fprintf_unlocked strstr errno snprintf vasprintf \
1035 malloc realloc calloc free basename getopt clock getpagesize, , ,[
1036 #include "ansidecl.h"
1037 #include "system.h"])
1039 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1040 #include "ansidecl.h"
1042 #ifdef HAVE_SYS_RESOURCE_H
1043 #include <sys/resource.h>
1048 #include "ansidecl.h"
1050 #ifdef HAVE_SYS_RESOURCE_H
1051 #include <sys/resource.h>
1053 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
1054 [Define to \`long' if <sys/resource.h> doesn't define.])])
1056 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1057 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1058 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1059 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1060 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1061 #include "ansidecl.h"
1070 gcc_AC_CHECK_DECLS(times, , ,[
1071 #include "ansidecl.h"
1073 #ifdef HAVE_SYS_TIMES_H
1074 #include <sys/times.h>
1078 # More time-related stuff.
1079 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1081 #include "ansidecl.h"
1083 #ifdef HAVE_SYS_TIMES_H
1084 #include <sys/times.h>
1086 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
1087 if test $ac_cv_struct_tms = yes; then
1088 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1089 [Define if <sys/times.h> defines struct tms.])
1092 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1093 # revisit after autoconf 2.50.
1094 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1096 #include "ansidecl.h"
1098 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
1099 if test $gcc_cv_type_clock_t = yes; then
1100 AC_DEFINE(HAVE_CLOCK_T, 1,
1101 [Define if <time.h> defines clock_t.])
1104 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1105 CFLAGS="$saved_CFLAGS"
1107 gcc_AC_INITFINI_ARRAY
1109 # mkdir takes a single argument on some systems.
1110 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1118 # With Setjmp/Longjmp based exception handling.
1119 AC_ARG_ENABLE(sjlj-exceptions,
1120 [ --enable-sjlj-exceptions
1121 arrange to use setjmp/longjmp exception handling],
1122 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1123 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1124 [Define 0/1 to force the choice for exception handling model.])])
1126 # For platforms with the unwind ABI which includes an unwind library,
1127 # libunwind, we can choose to use the system libunwind.
1128 AC_ARG_WITH(system-libunwind,
1129 [ --with-system-libunwind use installed libunwind])
1131 # --------------------------------------------------------
1132 # Build, host, and target specific configuration fragments
1133 # --------------------------------------------------------
1135 # Collect build-machine-specific information.
1136 . ${srcdir}/config.build
1138 # Collect host-machine-specific information.
1139 . ${srcdir}/config.host
1143 # Collect target-machine-specific information.
1144 . ${srcdir}/config.gcc
1146 extra_objs="${host_extra_objs} ${extra_objs}"
1147 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1149 # Default the target-machine variables that were not explicitly set.
1150 if test x"$tm_file" = x
1151 then tm_file=$cpu_type/$cpu_type.h; fi
1153 if test x"$extra_headers" = x
1154 then extra_headers=; fi
1156 if test x$md_file = x
1157 then md_file=$cpu_type/$cpu_type.md; fi
1159 if test x$out_file = x
1160 then out_file=$cpu_type/$cpu_type.c; fi
1162 if test x"$tmake_file" = x
1163 then tmake_file=$cpu_type/t-$cpu_type
1166 if test x"$dwarf2" = xyes
1167 then tm_file="$tm_file tm-dwarf2.h"
1170 # Say what files are being used for the output code and MD file.
1171 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1172 echo "Using \`$srcdir/config/$md_file' as machine description file."
1174 # If any of the xm_file variables contain nonexistent files, warn
1175 # about them and drop them.
1178 for x in $build_xm_file; do
1179 if test -f $srcdir/config/$x
1181 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1187 for x in $host_xm_file; do
1188 if test -f $srcdir/config/$x
1190 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1196 for x in $xm_file; do
1197 if test -f $srcdir/config/$x
1199 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1205 for f in $tm_file; do
1208 if test $count = ax; then
1209 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1211 echo "Using the following target machine macro files:"
1212 for f in $tm_file; do
1213 echo " $srcdir/config/$f"
1217 if test x$need_64bit_hwint = xyes; then
1218 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1219 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1222 if test x$use_long_long_for_widest_fast_int = xyes; then
1223 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1224 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1225 efficiently supported by the host hardware.])
1229 for f in $host_xm_file; do
1232 if test $count = a; then
1234 elif test $count = ax; then
1235 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1237 echo "Using the following host machine macro files:"
1238 for f in $host_xm_file; do
1239 echo " $srcdir/config/$f"
1242 echo "Using ${out_host_hook_obj} for host machine hooks."
1244 if test "$host_xm_file" != "$build_xm_file"; then
1246 for f in $build_xm_file; do
1249 if test $count = a; then
1251 elif test $count = ax; then
1252 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1254 echo "Using the following build machine macro files:"
1255 for f in $build_xm_file; do
1256 echo " $srcdir/config/$f"
1265 # Check if a valid thread package
1266 case ${enable_threads} in
1269 target_thread_file='single'
1273 target_thread_file='single'
1275 aix | dce | gnat | irix | posix | posix95 | rtems | \
1276 single | solaris | vxworks | win32 )
1277 target_thread_file=${enable_threads}
1280 echo "${enable_threads} is an unknown thread package" 1>&2
1285 if test x${thread_file} = x; then
1286 # No thread file set by target-specific clauses in config.gcc,
1287 # so use file chosen by default logic above
1288 thread_file=${target_thread_file}
1291 # Make gthr-default.h if we have a thread file.
1293 if test $thread_file != single; then
1294 rm -f gthr-default.h
1295 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1296 gthread_flags=-DHAVE_GTHR_DEFAULT
1298 AC_SUBST(gthread_flags)
1305 if test x$enable___cxa_atexit = xyes || \
1306 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1307 if test x$host = x$target; then
1308 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1309 [echo "__cxa_atexit can't be enabled on this target"])
1311 # We can't check for __cxa_atexit when building a cross, so assume
1315 if test x$use_cxa_atexit = xyes; then
1316 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1317 [Define if you want to use __cxa_atexit, rather than atexit, to
1318 register C++ destructors for local statics and global objects.
1319 This is essential for fully standards-compliant handling of
1320 destructors, but requires __cxa_atexit in libc.])
1324 # Look for a file containing extra machine modes.
1325 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1326 extra_modes_file='$(srcdir)'/config/${extra_modes}
1327 AC_SUBST(extra_modes_file)
1328 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1329 [Define to the name of a file containing a list of extra machine modes
1330 for this architecture.])
1333 # auto-host.h is the file containing items generated by autoconf and is
1334 # the first file included by config.h.
1335 # If host=build, it is correct to have bconfig include auto-host.h
1336 # as well. If host!=build, we are in error and need to do more
1337 # work to find out the build config parameters.
1338 if test x$host = x$build
1340 build_auto=auto-host.h
1342 # We create a subdir, then run autoconf in the subdir.
1343 # To prevent recursion we set host and build for the new
1344 # invocation of configure to the build for this invocation
1351 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1352 *) realsrcdir=../${srcdir};;
1354 saved_CFLAGS="${CFLAGS}"
1355 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1356 ${realsrcdir}/configure \
1357 --enable-languages=${enable_languages-all} \
1358 --target=$target_alias --host=$build_alias --build=$build_alias
1359 CFLAGS="${saved_CFLAGS}"
1361 # We just finished tests for the build machine, so rename
1362 # the file auto-build.h in the gcc directory.
1363 mv auto-host.h ../auto-build.h
1366 build_auto=auto-build.h
1368 AC_SUBST(build_subdir)
1370 tm_file="${tm_file} defaults.h"
1371 tm_p_file="${tm_p_file} tm-preds.h"
1372 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1373 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1374 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1375 # put this back in temporarily.
1376 xm_file="ansidecl.h ${xm_file}"
1382 # Get the version trigger filename from the toplevel
1383 if test "${with_gcc_version_trigger+set}" = set; then
1384 gcc_version_trigger=$with_gcc_version_trigger
1386 gcc_version_trigger=${srcdir}/version.c
1389 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1390 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1392 # Compile in configure arguments.
1393 if test -f configargs.h ; then
1394 # Being re-configured.
1395 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1396 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1398 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1401 # Double all backslashes and backslash all quotes to turn
1402 # gcc_config_arguments into a C string.
1403 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1404 $gcc_config_arguments
1406 gcc_config_arguments_str=`cat conftest.out`
1409 cat > configargs.h <<EOF
1410 /* Generated automatically. */
1411 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1412 static const char thread_model[] = "$thread_file";
1414 static const struct {
1415 const char *name, *value;
1416 } configure_default_options[] = $configure_default_options;
1420 # Internationalization
1422 VERSION="$gcc_version"
1423 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
1424 [The name of this program for internationalization purposes.])
1428 ZW_GNU_GETTEXT_SISTER_DIR
1430 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1431 # -liconv on the link line twice.
1432 case "$LIBINTL" in *$LIBICONV*)
1436 # Windows32 Registry support for specifying GCC installation paths.
1437 AC_ARG_ENABLE(win32-registry,
1438 [ --disable-win32-registry
1439 disable lookup of installation paths in the
1440 Registry on Windows hosts
1441 --enable-win32-registry enable registry lookup (default)
1442 --enable-win32-registry=KEY
1443 use KEY instead of GCC version as the last portion
1444 of the registry key],,)
1446 win32 | pe | cygwin* | mingw32* | uwin*)
1447 AC_MSG_CHECKING(whether windows registry support is requested)
1448 if test "x$enable_win32_registry" != xno; then
1449 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1450 [Define to 1 if installation paths should be looked up in Windows32
1451 Registry. Ignored on non windows32 hosts.])
1453 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1458 # Check if user specified a different registry key.
1459 case "x${enable_win32_registry}" in
1462 gcc_cv_win32_registry_key="$VERSION"
1465 # no registry lookup.
1466 gcc_cv_win32_registry_key=''
1469 # user-specified key.
1470 gcc_cv_win32_registry_key="$enable_win32_registry"
1474 if test "x$enable_win32_registry" != xno; then
1475 AC_MSG_CHECKING(registry key on windows hosts)
1476 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1477 [Define to be the last portion of registry key on windows hosts.])
1478 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1483 # Get an absolute path to the GCC top-level source directory
1484 holddir=`${PWDCMD-pwd}`
1486 topdir=`${PWDCMD-pwd}`
1489 # Conditionalize the makefile for this host machine.
1491 for f in ${host_xmake_file}
1493 if test -f ${srcdir}/config/$f
1495 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1499 # Conditionalize the makefile for this target machine.
1501 for f in ${tmake_file}
1503 if test -f ${srcdir}/config/$f
1505 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1508 tmake_file="${tmake_file_}"
1510 # If the host doesn't support symlinks, modify CC in
1511 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1512 # Otherwise, we can use "CC=$(CC)".
1516 cc_set_by_configure="\$(CC)"
1517 quoted_cc_set_by_configure="\$(CC)"
1518 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1519 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1522 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1523 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1524 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1525 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1529 out_object_file=`basename $out_file .c`.o
1533 for f in $tm_file; do
1536 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1537 tm_include_list="${tm_include_list} $f"
1540 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1541 tm_include_list="${tm_include_list} config/$f"
1548 for f in $tm_p_file; do
1551 tm_p_file_list="${tm_p_file_list} $f"
1552 tm_p_include_list="${tm_p_include_list} $f"
1555 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1556 tm_p_include_list="${tm_p_include_list} config/$f"
1562 for f in $xm_file; do
1565 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1566 xm_include_list="${xm_include_list} $f"
1569 xm_file_list="${xm_file_list} $f"
1570 xm_include_list="${xm_include_list} $f"
1573 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1574 xm_include_list="${xm_include_list} config/$f"
1580 host_xm_include_list=
1581 for f in $host_xm_file; do
1584 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1585 host_xm_include_list="${host_xm_include_list} $f"
1588 host_xm_file_list="${host_xm_file_list} $f"
1589 host_xm_include_list="${host_xm_include_list} $f"
1592 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1593 host_xm_include_list="${host_xm_include_list} config/$f"
1599 for f in $build_xm_file; do
1602 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1603 build_xm_include_list="${build_xm_include_list} $f"
1605 auto-build.h | auto-host.h )
1606 build_xm_file_list="${build_xm_file_list} $f"
1607 build_xm_include_list="${build_xm_include_list} $f"
1610 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1611 build_xm_include_list="${build_xm_include_list} config/$f"
1616 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1617 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1618 CROSS= AC_SUBST(CROSS)
1619 ALL=all.internal AC_SUBST(ALL)
1620 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1621 if test x$host != x$target
1623 CROSS="-DCROSS_COMPILE"
1625 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1626 case "$host","$target" in
1627 # Darwin crosses can use the host system's libraries and headers,
1628 # because of the fat library support. Of course, it must be the
1629 # same version of Darwin on both sides. Allow the user to
1630 # just say --target=foo-darwin without a version number to mean
1631 # "the version on this system".
1632 *-*-darwin*,*-*-darwin*)
1633 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1634 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1635 if test $hostos = $targetos -o $targetos = darwin ; then
1637 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1642 i?86-*-*,x86_64-*-* \
1643 | powerpc*-*-*,powerpc64*-*-*)
1644 CROSS="$CROSS -DNATIVE_CROSS" ;;
1646 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1647 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1648 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1651 # If this is a cross-compiler that does not
1652 # have its own set of headers then define
1655 # If this is using newlib, without having the headers available now,
1656 # then define inhibit_libc in LIBGCC2_CFLAGS.
1657 # This prevents libgcc2 from containing any code which requires libc
1660 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1661 test x$with_newlib = xyes ; } &&
1662 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1663 inhibit_libc=-Dinhibit_libc
1665 AC_SUBST(inhibit_libc)
1667 # When building gcc with a cross-compiler, we need to adjust things so
1668 # that the generator programs are still built with the native compiler.
1669 # Also, we cannot run fixincludes or fix-header.
1671 # These are the normal (build=host) settings:
1672 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1673 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1674 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1676 # Possibly disable fixproto, on a per-target basis.
1677 case ${use_fixproto} in
1682 STMP_FIXPROTO=stmp-fixproto
1685 AC_SUBST(STMP_FIXPROTO)
1687 # And these apply if build != host, or we are generating coverage data
1688 if test x$build != x$host || test "x$coverage_flags" != x
1690 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1692 if test "x$TARGET_SYSTEM_ROOT" = x; then
1693 if [ "x$STMP_FIXPROTO" != x ] ; then
1694 STMP_FIXPROTO=stmp-install-fixproto
1699 # Expand extra_headers to include complete path.
1700 # This substitutes for lots of t-* files.
1702 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1703 for file in ${extra_headers} ; do
1704 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1707 # Define collect2 in Makefile.
1708 case $host_can_use_collect2 in
1710 *) collect2='collect2$(exeext)' ;;
1712 AC_SUBST([collect2])
1714 # Add a definition of USE_COLLECT2 if system wants one.
1715 case $use_collect2 in
1716 no) use_collect2= ;;
1719 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1720 xm_defines="${xm_defines} USE_COLLECT2"
1721 case $host_can_use_collect2 in
1723 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1729 # ---------------------------
1730 # Assembler & linker features
1731 # ---------------------------
1733 # Identify the assembler which will work hand-in-glove with the newly
1734 # built GCC, so that we can examine its features. This is the assembler
1735 # which will be driven by the driver program.
1737 # If build != host, and we aren't building gas in-tree, we identify a
1738 # build->target assembler and hope that it will have the same features
1739 # as the host->target assembler we'll be using.
1740 AC_MSG_CHECKING(what assembler to use)
1743 gcc_cv_gas_major_version=
1744 gcc_cv_gas_minor_version=
1745 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1746 if test -x "$DEFAULT_ASSEMBLER"; then
1747 gcc_cv_as="$DEFAULT_ASSEMBLER"
1748 elif test -x as$build_exeext; then
1749 # Build using assembler in the current directory.
1750 gcc_cv_as=./as$build_exeext
1751 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1752 && test -f ../gas/Makefile \
1753 && test x$build = x$host; then
1754 # Single tree build which includes gas. We want to prefer it
1755 # over whatever linker top-level may have detected, since
1756 # we'll use what we're building after installation anyway.
1758 _gcc_COMPUTE_GAS_VERSION
1759 rm -f as$build_exeext
1760 $LN_S ../gas/as-new$build_exeext as$build_exeext 2>/dev/null
1761 in_tree_gas_is_elf=no
1762 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1763 || (grep 'obj_format = multi' ../gas/Makefile \
1764 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1766 in_tree_gas_is_elf=yes
1768 m4_pattern_allow([AS_FOR_TARGET])dnl
1769 elif test -x "$AS_FOR_TARGET"; then
1770 gcc_cv_as="$AS_FOR_TARGET"
1771 elif test -x "$AS" && test x$host = x$target; then
1775 if test "x$gcc_cv_as" = x; then
1776 # Search the same directories that the installed compiler will
1777 # search. Else we may find the wrong assembler and lose. If we
1778 # do not find a suitable assembler binary, then try the user's
1781 # Also note we have to check MD_EXEC_PREFIX before checking the
1782 # user's path. Unfortunately, there is no good way to get at the
1783 # value of MD_EXEC_PREFIX here. So we do a brute force search
1784 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1785 # to be fixed as part of the make/configure rewrite too.
1787 if test "x$exec_prefix" = xNONE; then
1788 if test "x$prefix" = xNONE; then
1789 test_prefix=/usr/local
1794 test_prefix=$exec_prefix
1797 # If the loop below does not find an assembler, then use whatever
1798 # one we can find in the users's path.
1800 if test "x$program_prefix" != xNONE; then
1801 gcc_cv_as=${program_prefix}as$build_exeext
1803 gcc_cv_as=`echo as | sed "${program_transform_name}"`$build_exeext
1806 if test x$host = x$build; then
1807 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1808 $test_prefix/libexec/gcc/$target_noncanonical \
1809 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1810 /usr/lib/gcc/$target_noncanonical \
1811 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1812 $test_prefix/$target_noncanonical/bin"
1817 if test x$host = x$target; then
1818 test_dirs="$test_dirs \
1823 /bsd43/usr/lib/cmplrs/cc \
1824 /usr/cross64/usr/bin \
1825 /usr/lib/cmplrs/cc \
1826 /sysv/usr/lib/cmplrs/cc \
1827 /svr4/usr/lib/cmplrs/cc \
1831 for dir in $test_dirs; do
1832 if test -x $dir/as$build_exeext; then
1833 gcc_cv_as=$dir/as$build_exeext
1838 case $in_tree_gas in
1840 AC_MSG_RESULT("newly built gas")
1843 AC_MSG_RESULT($gcc_cv_as)
1847 # Identify the linker which will work hand-in-glove with the newly
1848 # built GCC, so that we can examine its features. This is the linker
1849 # which will be driven by the driver program.
1851 # If build != host, and we aren't building gas in-tree, we identify a
1852 # build->target linker and hope that it will have the same features
1853 # as the host->target linker we'll be using.
1854 AC_MSG_CHECKING(what linker to use)
1857 gcc_cv_gld_major_version=
1858 gcc_cv_gld_minor_version=
1859 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1860 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1861 if test -x "$DEFAULT_LINKER"; then
1862 gcc_cv_ld="$DEFAULT_LINKER"
1863 elif test -x collect-ld$build_exeext; then
1864 # Build using linker in the current directory.
1865 gcc_cv_ld=./collect-ld$build_exeext
1866 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1867 && test -f ../ld/Makefile \
1868 && test x$build = x$host; then
1869 # Single tree build which includes ld. We want to prefer it
1870 # over whatever linker top-level may have detected, since
1871 # we'll use what we're building after installation anyway.
1873 in_tree_ld_is_elf=no
1874 if (grep 'EMUL = .*elf' ../ld/Makefile \
1875 || grep 'EMUL = .*linux' ../ld/Makefile \
1876 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1877 in_tree_ld_is_elf=yes
1879 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
1882 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1884 if test x$gcc_cv_gld_version != x; then
1889 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1890 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1892 rm -f collect-ld$build_exeext
1893 $LN_S ../ld/ld-new$build_exeext collect-ld$build_exeext 2>/dev/null
1894 elif test -x "$LD_FOR_TARGET"; then
1895 gcc_cv_ld="$LD_FOR_TARGET"
1896 elif test -x "$LD" && test x$host = x$target; then
1900 if test "x$gcc_cv_ld" = x; then
1901 # Search the same directories that the installed compiler will
1902 # search. Else we may find the wrong linker and lose. If we
1903 # do not find a suitable linker binary, then try the user's
1906 # Also note we have to check MD_EXEC_PREFIX before checking the
1907 # user's path. Unfortunately, there is no good way to get at the
1908 # value of MD_EXEC_PREFIX here. So we do a brute force search
1909 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1910 # to be fixed as part of the make/configure rewrite too.
1912 if test "x$exec_prefix" = xNONE; then
1913 if test "x$prefix" = xNONE; then
1914 test_prefix=/usr/local
1919 test_prefix=$exec_prefix
1922 # If the loop below does not find an linker, then use whatever
1923 # one we can find in the users's path.
1925 if test "x$program_prefix" != xNONE; then
1926 gcc_cv_ld=${program_prefix}ld$build_exeext
1928 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$build_exeext
1931 if test x$host = x$build; then
1932 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1933 $test_prefix/libexec/gcc/$target_noncanonical \
1934 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1935 /usr/lib/gcc/$target_noncanonical \
1936 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1937 $test_prefix/$target_noncanonical/bin"
1942 if test x$host = x$target; then
1943 test_dirs="$test_dirs \
1948 /bsd43/usr/lib/cmplrs/cc \
1949 /usr/cross64/usr/bin \
1950 /usr/lib/cmplrs/cc \
1951 /sysv/usr/lib/cmplrs/cc \
1952 /svr4/usr/lib/cmplrs/cc \
1956 for dir in $test_dirs; do
1957 if test -x $dir/ld$build_exeext; then
1958 gcc_cv_ld=$dir/ld$build_exeext
1965 AC_MSG_RESULT("newly built ld")
1968 AC_MSG_RESULT($gcc_cv_ld)
1972 # Figure out what nm we will be using.
1973 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1974 AC_MSG_CHECKING(what nm to use)
1976 if test -x nm$build_exeext; then
1977 gcc_cv_nm=./nm$build_exeext
1978 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1979 && test -f ../binutils/Makefile; then
1980 # Single tree build which includes binutils.
1982 gcc_cv_nm=./nm$build_exeext
1983 rm -f nm$build_exeext
1984 $LN_S ../binutils/nm-new$build_exeext nm$build_exeext 2>/dev/null
1985 elif test "x$program_prefix" != xNONE; then
1986 gcc_cv_nm=${program_prefix}nm$build_exeext
1988 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$build_exeext
1991 yes) AC_MSG_RESULT("newly built nm") ;;
1992 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1995 # Figure out what objdump we will be using.
1996 AC_MSG_CHECKING(what objdump to use)
1998 if test -x objdump$build_exeext; then
1999 gcc_cv_objdump=./objdump$build_exeext
2000 elif test -f $gcc_cv_binutils_srcdir/configure.in \
2001 && test -f ../binutils/Makefile; then
2002 # Single tree build which includes binutils.
2004 gcc_cv_objdump=./objdump$build_exeext
2005 rm -f objdump$build_exeext
2006 $LN_S ../binutils/objdump$build_exeext objdump$build_exeext 2>/dev/null
2007 elif test "x$program_prefix" != xNONE; then
2008 gcc_cv_objdump=${program_prefix}objdump$build_exeext
2010 gcc_cv_objdump=`echo objdump | \
2011 sed "${program_transform_name}"`$build_exeext
2013 case $in_tree_objdump in
2014 yes) AC_MSG_RESULT("newly built objdump") ;;
2015 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
2018 # Figure out what assembler alignment features are present.
2019 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
2023 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
2024 [Define if your assembler supports .balign and .p2align.])])
2026 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
2029 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
2030 [Define if your assembler supports specifying the maximum number
2031 of bytes to skip when using the GAS .p2align command.])])
2033 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
2035 [conftest_label1: .word 0
2037 conftest_label2: .word 0
2039 [if test x$gcc_cv_nm != x; then
2040 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
2041 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
2042 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
2044 else gcc_cv_as_subsection_m1=yes
2046 rm -f conftest.nm1 conftest.nm2
2048 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2049 [Define if your assembler supports .subsection and .subsection -1 starts
2050 emitting at the beginning of your section.])])
2052 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2055 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2057 # .hidden needs to be supported in both the assembler and the linker,
2058 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2059 # This is irritatingly difficult to feature test for; we have to check the
2060 # date string after the version number. If we've got an in-tree
2061 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2063 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2064 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2069 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2070 [if test $in_tree_ld = yes ; then
2072 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2073 && test $in_tree_ld_is_elf = yes; then
2074 gcc_cv_ld_hidden=yes
2077 gcc_cv_ld_hidden=yes
2078 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2079 if echo "$ld_ver" | grep GNU > /dev/null; then
2081 ld_vers=`echo $ld_ver | sed -n \
2082 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2083 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2084 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2085 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2086 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2087 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2088 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2089 if test 0"$ld_date" -lt 20020404; then
2090 if test -n "$ld_date"; then
2091 # If there was date string, but was earlier than 2002-04-04, fail
2093 elif test -z "$ld_vers"; then
2094 # If there was no date string nor ld version number, something is wrong
2097 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2098 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2099 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2100 test -z "$ld_vers_patch" && ld_vers_patch=0
2101 if test "$ld_vers_major" -lt 2; then
2103 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2104 gcc_cv_ld_hidden="no"
2105 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2113 hppa64*-*-hpux* | ia64*-*-hpux*)
2114 gcc_cv_ld_hidden=yes
2122 libgcc_visibility=no
2123 AC_SUBST(libgcc_visibility)
2124 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2125 libgcc_visibility=yes
2126 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2127 [Define if your assembler and linker support .hidden.])
2130 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2131 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2139 [# GAS versions before 2.11 do not support uleb128,
2140 # despite appearing to.
2141 # ??? There exists an elf-specific test that will crash
2142 # the assembler. Perhaps it's better to figure out whether
2143 # arbitrary sections are supported and try the test.
2144 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2145 if echo "$as_ver" | grep GNU > /dev/null; then
2147 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2148 as_major=`echo $as_ver | sed 's/\..*//'`
2149 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2151 if test $as_major -eq 2 && test $as_minor -lt 11
2153 else gcc_cv_as_leb128=yes
2156 [AC_DEFINE(HAVE_AS_LEB128, 1,
2157 [Define if your assembler supports .sleb128 and .uleb128.])])
2159 # GAS versions up to and including 2.11.0 may mis-optimize
2161 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2169 .section .eh_frame,"aw",@progbits
2171 .4byte .LECIE1-.LSCIE1
2185 .4byte .LEFDE1-.LASFDE1
2187 .4byte .LASFDE1-__FRAME_BEGIN__
2195 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2196 cat > conftest.lit <<EOF
2197 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2198 0010 01000000 12000000 18000000 00000000 ................
2199 0020 08000000 04080000 0044 .........D @&t@
2201 cat > conftest.big <<EOF
2202 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2203 0010 00000001 00000012 00000018 00000000 ................
2204 0020 00000008 04000000 0844 .........D @&t@
2206 # If the assembler didn't choke, and we can objdump,
2207 # and we got the correct data, then succeed.
2208 if test x$gcc_cv_objdump != x \
2209 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2210 | tail -3 > conftest.got \
2211 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2212 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2214 gcc_cv_as_eh_frame=yes
2215 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2216 gcc_cv_as_eh_frame=buggy
2218 # Uh oh, what do we do now?
2219 gcc_cv_as_eh_frame=no
2222 if test $gcc_cv_as_eh_frame = buggy; then
2223 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2224 [Define if your assembler mis-optimizes .eh_frame data.])
2227 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2228 [elf,2,12,0], [--fatal-warnings],
2229 [.section .rodata.str, "aMS", @progbits, 1])
2230 if test $gcc_cv_as_shf_merge = no; then
2231 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2232 [elf,2,12,0], [--fatal-warnings],
2233 [.section .rodata.str, "aMS", %progbits, 1])
2235 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2236 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2237 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2239 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2240 [elf,2,15,91], [--fatal-warnings],
2241 [.section .text,"axG",@progbits,.foo,comdat])
2242 if test $gcc_cv_as_comdat_group = yes; then
2243 gcc_cv_as_comdat_group_percent=no
2245 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2246 [elf,2,15,91], [--fatal-warnings],
2247 [.section .text,"axG",%progbits,.foo,comdat])
2249 AC_DEFINE_UNQUOTED(HAVE_GAS_COMDAT_GROUP,
2250 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2251 [Define 0/1 if your assembler supports COMDAT group.])
2253 # Thread-local storage - the check is heavily parametrized.
2262 .section ".tdata","awT",@progbits
2265 ldq $27,__tls_get_addr($29) !literal!1
2266 lda $16,foo($29) !tlsgd!1
2267 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2268 ldq $27,__tls_get_addr($29) !literal!2
2269 lda $16,foo($29) !tlsldm!2
2270 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2271 ldq $1,foo($29) !gotdtprel
2272 ldah $2,foo($29) !dtprelhi
2273 lda $3,foo($2) !dtprello
2274 lda $4,foo($29) !dtprel
2275 ldq $1,foo($29) !gottprel
2276 ldah $2,foo($29) !tprelhi
2277 lda $3,foo($2) !tprello
2278 lda $4,foo($29) !tprel'
2281 tls_as_opt=--fatal-warnings
2285 .section ".tdata","awT",@progbits
2289 leal foo@TLSGD(,%ebx,1), %eax
2290 leal foo@TLSLDM(%ebx), %eax
2291 leal foo@DTPOFF(%eax), %edx
2292 movl foo@GOTTPOFF(%ebx), %eax
2293 subl foo@GOTTPOFF(%ebx), %eax
2294 addl foo@GOTNTPOFF(%ebx), %eax
2295 movl foo@INDNTPOFF, %eax
2296 movl $foo@TPOFF, %eax
2297 subl $foo@TPOFF, %eax
2298 leal foo@NTPOFF(%ecx), %eax'
2301 tls_as_opt=--fatal-warnings
2305 .section ".tdata","awT",@progbits
2309 leaq foo@TLSGD(%rip), %rdi
2310 leaq foo@TLSLD(%rip), %rdi
2311 leaq foo@DTPOFF(%rax), %rdx
2312 movq foo@GOTTPOFF(%rip), %rax
2313 movq $foo@TPOFF, %rax'
2316 tls_as_opt=--fatal-warnings
2320 .section ".tdata","awT",@progbits
2323 addl r16 = @ltoff(@dtpmod(foo#)), gp
2324 addl r17 = @ltoff(@dtprel(foo#)), gp
2325 addl r18 = @ltoff(@tprel(foo#)), gp
2326 addl r19 = @dtprel(foo#), gp
2327 adds r21 = @dtprel(foo#), r13
2328 movl r23 = @dtprel(foo#)
2329 addl r20 = @tprel(foo#), gp
2330 adds r22 = @tprel(foo#), r13
2331 movl r24 = @tprel(foo#)'
2334 tls_as_opt=--fatal-warnings
2338 .section ".tdata","awT",@progbits
2346 addi 3,31,ld0@got@tlsgd
2348 addi 3,31,x1@got@tlsld
2351 addis 9,3,x2@dtprel@ha
2352 addi 9,9,x2@dtprel@l
2353 lwz 9,x3@got@tprel(31)
2356 addis 9,2,x2@tprel@ha
2357 addi 9,9,x2@tprel@l'
2360 tls_as_opt="-a32 --fatal-warnings"
2364 .section ".tdata","awT",@progbits
2372 addi 3,2,ld0@got@tlsgd
2378 addi 3,2,x1@got@tlsld
2384 addis 9,3,x2@dtprel@ha
2385 addi 9,9,x2@dtprel@l
2388 ld 9,x3@got@dtprel(2)
2394 tls_as_opt="-a64 --fatal-warnings"
2398 .section ".tdata","awT",@progbits
2407 l %r1,foo@GOTNTPOFF(%r12)
2408 l %r1,0(%r1):tls_load:foo
2409 bas %r14,0(%r1,%r13):tls_gdcall:foo
2410 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2413 tls_as_opt="-m31 --fatal-warnings"
2417 .section ".tdata","awT",@progbits
2425 lg %r1,foo@GOTNTPOFF(%r12)
2426 larl %r1,foo@INDNTPOFF
2427 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2428 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2431 tls_as_opt="-m64 -Aesame --fatal-warnings"
2433 sh-*-* | sh[34]-*-*)
2435 .section ".tdata","awT",@progbits
2445 tls_as_opt=--fatal-warnings
2449 sparc*-sun-solaris2.*)
2456 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2458 .section ".tdata",#alloc,#write,#tls
2461 sethi %tgd_hi22(foo), %o0
2462 add %o0, %tgd_lo10(foo), %o1
2463 add %l7, %o1, %o0, %tgd_add(foo)
2464 call __tls_get_addr, %tgd_call(foo)
2465 sethi %tldm_hi22(foo), %l1
2466 add %l1, %tldm_lo10(foo), %l2
2467 add %l7, %l2, %o0, %tldm_add(foo)
2468 call __tls_get_addr, %tldm_call(foo)
2469 sethi %tldo_hix22(foo), %l3
2470 xor %l3, %tldo_lox10(foo), %l4
2471 add %o0, %l4, %l5, %tldo_add(foo)
2472 sethi %tie_hi22(foo), %o3
2473 add %o3, %tie_lo10(foo), %o3
2474 ld [%l7 + %o3], %o2, %tie_ld(foo)
2475 add %g7, %o2, %o4, %tie_add(foo)
2476 sethi %tle_hix22(foo), %l1
2477 xor %l1, %tle_lox10(foo), %o5
2478 ld [%g7 + %o5], %o1'
2483 .section ".tdata","awT",@progbits
2486 sethi %tgd_hi22(foo), %o0
2487 add %o0, %tgd_lo10(foo), %o1
2488 add %l7, %o1, %o0, %tgd_add(foo)
2489 call __tls_get_addr, %tgd_call(foo)
2490 sethi %tldm_hi22(foo), %l1
2491 add %l1, %tldm_lo10(foo), %l2
2492 add %l7, %l2, %o0, %tldm_add(foo)
2493 call __tls_get_addr, %tldm_call(foo)
2494 sethi %tldo_hix22(foo), %l3
2495 xor %l3, %tldo_lox10(foo), %l4
2496 add %o0, %l4, %l5, %tldo_add(foo)
2497 sethi %tie_hi22(foo), %o3
2498 add %o3, %tie_lo10(foo), %o3
2499 ld [%l7 + %o3], %o2, %tie_ld(foo)
2500 add %g7, %o2, %o4, %tie_add(foo)
2501 sethi %tle_hix22(foo), %l1
2502 xor %l1, %tle_lox10(foo), %o5
2503 ld [%g7 + %o5], %o1'
2506 tls_as_opt="-32 --fatal-warnings"
2511 if test -z "$tls_first_major"; then
2512 : # If we don't have a check, assume no support.
2514 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2515 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2516 [AC_DEFINE(HAVE_AS_TLS, 1,
2517 [Define if your assembler supports thread-local storage.])])
2520 # Target-specific assembler checks.
2522 if test x"$demangler_in_ld" = xyes; then
2523 AC_MSG_CHECKING(linker --demangle support)
2524 gcc_cv_ld_demangle=no
2525 if test $in_tree_ld = yes; then
2526 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2527 gcc_cv_ld_demangle=yes
2529 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2530 # Check if the GNU linker supports --demangle option
2531 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2532 gcc_cv_ld_demangle=yes
2535 if test x"$gcc_cv_ld_demangle" = xyes; then
2536 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2537 [Define if your linker supports --demangle option.])
2539 AC_MSG_RESULT($gcc_cv_ld_demangle)
2543 # All TARGET_ABI_OSF targets.
2544 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2545 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2546 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2549 extbl $3, $2, $3 !lituse_bytoff!1
2550 ldq $2, a($29) !literal!1
2551 ldq $4, b($29) !literal!2
2552 ldq_u $3, 0($2) !lituse_base!1
2553 ldq $27, f($29) !literal!5
2554 jsr $26, ($27), f !lituse_jsr!5
2555 ldah $29, 0($26) !gpdisp!3
2556 lda $0, c($29) !gprel
2557 ldah $1, d($29) !gprelhigh
2558 lda $1, d($1) !gprellow
2559 lda $29, 0($29) !gpdisp!3],,
2560 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2561 [Define if your assembler supports explicit relocations.])])
2565 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2566 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2567 [-no-mul-bug-abort], [.text],,
2568 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2569 [Define if your assembler supports the -no-mul-bug-abort option.])])
2573 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2574 [.register %g2, #scratch],,
2575 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2576 [Define if your assembler supports .register.])])
2578 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2580 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2581 [Define if your assembler supports -relax option.])])
2583 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2584 gcc_cv_as_sparc_ua_pcrel,,
2592 .uaword %r_disp32(foo)],
2593 [if test x$gcc_cv_ld != x \
2594 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2595 gcc_cv_as_sparc_ua_pcrel=yes
2598 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2599 [Define if your assembler and linker support unaligned PC relative relocs.])
2601 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2602 gcc_cv_as_sparc_ua_pcrel_hidden,,
2607 .uaword %r_disp32(foo)
2608 .byte 0x32, 0x33, 0x34
2613 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2614 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2615 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2616 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2617 if $gcc_cv_objdump -R conftest 2> /dev/null \
2618 | grep 'DISP32' > /dev/null 2>&1; then
2621 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2625 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2626 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2627 ]) # unaligned pcrel relocs
2629 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2630 gcc_cv_as_sparc_offsetable_lo10,,
2633 or %g1, %lo(ab) + 12, %g1
2634 or %g1, %lo(ab + 12), %g1],
2635 [if test x$gcc_cv_objdump != x \
2636 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2637 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2638 gcc_cv_as_offsetable_lo10=yes
2640 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2641 [Define if your assembler supports offsetable %lo().])])
2645 i[34567]86-*-* | x86_64-*-*)
2648 cygwin* | pe | mingw32*)
2649 # Used for DWARF 2 in PE
2650 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2651 gcc_cv_as_ix86_pe_secrel32,
2657 [if test x$gcc_cv_ld != x \
2658 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2659 gcc_cv_as_ix86_pe_secrel32=yes
2662 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2663 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2667 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2668 gcc_cv_as_ix86_filds_fists,
2669 [2,9,0],, [filds mem; fists mem],,
2670 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2671 [Define if your assembler uses the new HImode fild and fist notation.])])
2673 gcc_GAS_CHECK_FEATURE([cmov syntax],
2674 gcc_cv_as_ix86_cmov_sun_syntax,,,
2675 [cmovl.l %edx, %eax],,
2676 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2677 [Define if your assembler supports the Sun syntax for cmov.])])
2679 # This one is used unconditionally by i386.[ch]; it is to be defined
2680 # to 1 if the feature is present, 0 otherwise.
2681 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2682 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2688 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2689 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2690 [Define true if the assembler supports '.long foo@GOTOFF'.])
2694 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2695 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2697 addl r15 = @ltoffx(x#), gp
2699 ld8.mov r16 = [[r15]], x#],,
2700 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2701 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2707 *-*-aix*) conftest_s=' .csect .text[[PR]]
2710 gcc_GAS_CHECK_FEATURE([.machine directive support],
2711 gcc_cv_as_machine_directive,,,
2712 [ .machine ppc7400])
2713 if test x$gcc_cv_as_machine_directive != xyes; then
2714 echo "*** This target requires an assembler supporting \".machine\"" >&2
2715 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2716 test x$build = x$target && exit 1
2720 *) conftest_s=' .machine power4
2725 gcc_GAS_CHECK_FEATURE([mfcr field support],
2726 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2728 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2729 [Define if your assembler supports mfcr field.])])
2733 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2734 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2735 [ lw $4,%gp_rel(foo)($4)],,
2736 [if test x$target_cpu_default = x
2737 then target_cpu_default=MASK_EXPLICIT_RELOCS
2738 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2741 if test x$gas_flag = xyes \
2742 || test x"$host" != x"$build" \
2743 || test ! -x "$gcc_cv_as" \
2744 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2747 echo "*** This configuration requires the GNU assembler" >&2
2752 # ??? Not all targets support dwarf2 debug_line, even within a version
2753 # of gas. Moreover, we need to emit a valid instruction to trigger any
2754 # info to the output file. So, as supported targets are added to gas 2.11,
2755 # add some instruction here to (also) show we expect this might work.
2756 # ??? Once 2.11 is released, probably need to add first known working
2757 # version to the per-target configury.
2759 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2760 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2761 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2764 ia64*-*-* | s390*-*-*)
2771 if test x"$insn" != x; then
2773 .file 1 \"conftest.s\"
2776 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2777 gcc_cv_as_dwarf2_debug_line,
2778 [elf,2,11,0],, [$conftest_s],
2779 [# ??? This fails with non-gnu grep. Maybe use objdump?
2780 if grep debug_line conftest.o > /dev/null 2>&1; then
2781 gcc_cv_as_dwarf2_debug_line=yes
2784 # The .debug_line file table must be in the exact order that
2785 # we specified the files, since these indices are also used
2786 # by DW_AT_decl_file. Approximate this test by testing if
2787 # the assembler bitches if the same index is assigned twice.
2788 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2789 gcc_cv_as_dwarf2_file_buggy,,,
2793 if test $gcc_cv_as_dwarf2_debug_line = yes \
2794 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2795 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2796 [Define if your assembler supports dwarf2 .file/.loc directives,
2797 and preserves file table indices exactly as given.])
2800 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2801 gcc_cv_as_gdwarf2_flag,
2802 [elf,2,11,0], [--gdwarf2], [$insn],,
2803 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2804 [Define if your assembler supports the --gdwarf2 option.])])
2806 gcc_GAS_CHECK_FEATURE([--gstabs option],
2807 gcc_cv_as_gstabs_flag,
2808 [elf,2,11,0], [--gstabs], [$insn],
2809 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2810 # and warns about it, but still exits successfully. So check for
2812 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2814 else gcc_cv_as_gstabs_flag=yes
2816 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2817 [Define if your assembler supports the --gstabs option.])])
2820 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2821 gcc_cv_ld_ro_rw_mix=unknown
2822 if test $in_tree_ld = yes ; then
2823 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2824 && test $in_tree_ld_is_elf = yes; then
2825 gcc_cv_ld_ro_rw_mix=read-write
2827 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2828 echo '.section myfoosect, "a"' > conftest1.s
2829 echo '.section myfoosect, "aw"' > conftest2.s
2830 echo '.byte 1' >> conftest2.s
2831 echo '.section myfoosect, "a"' > conftest3.s
2832 echo '.byte 0' >> conftest3.s
2833 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2834 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2835 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2836 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2837 conftest2.o conftest3.o > /dev/null 2>&1; then
2838 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2839 | sed -e '/myfoosect/!d' -e N`
2840 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2841 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2842 gcc_cv_ld_ro_rw_mix=read-only
2844 gcc_cv_ld_ro_rw_mix=read-write
2849 rm -f conftest.* conftest[123].*
2852 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2853 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2854 [Define if your linker links a mix of read-only
2855 and read-write sections into a read-write section.])
2857 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2859 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2860 gcc_cv_ld_eh_frame_hdr=no
2861 if test $in_tree_ld = yes ; then
2862 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2863 && test $in_tree_ld_is_elf = yes; then
2864 gcc_cv_ld_eh_frame_hdr=yes
2866 elif test x$gcc_cv_ld != x; then
2867 # Check if linker supports --eh-frame-hdr option
2868 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2869 gcc_cv_ld_eh_frame_hdr=yes
2872 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2873 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2874 [Define if your linker supports --eh-frame-hdr option.])
2876 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2878 AC_MSG_CHECKING(linker position independent executable support)
2880 if test $in_tree_ld = yes ; then
2881 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2882 && test $in_tree_ld_is_elf = yes; then
2885 elif test x$gcc_cv_ld != x; then
2886 # Check if linker supports -pie option
2887 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2891 if test x"$gcc_cv_ld_pie" = xyes; then
2892 AC_DEFINE(HAVE_LD_PIE, 1,
2893 [Define if your linker supports -pie option.])
2895 AC_MSG_RESULT($gcc_cv_ld_pie)
2901 AC_CACHE_CHECK(linker --as-needed support,
2902 gcc_cv_ld_as_needed,
2903 [gcc_cv_ld_as_needed=no
2904 if test $in_tree_ld = yes ; then
2905 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2906 && test $in_tree_ld_is_elf = yes; then
2907 gcc_cv_ld_as_needed=yes
2909 elif test x$gcc_cv_ld != x; then
2910 # Check if linker supports --as-needed and --no-as-needed options
2911 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2912 gcc_cv_ld_as_needed=yes
2916 if test x"$gcc_cv_ld_as_needed" = xyes; then
2917 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2918 [Define if your linker supports --as-needed and --no-as-needed options.])
2922 powerpc64*-*-linux*)
2923 AC_CACHE_CHECK(linker support for omitting dot symbols,
2924 gcc_cv_ld_no_dot_syms,
2925 [gcc_cv_ld_no_dot_syms=no
2926 if test $in_tree_ld = yes ; then
2927 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
2928 gcc_cv_ld_no_dot_syms=yes
2930 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
2931 cat > conftest1.s <<EOF
2935 cat > conftest2.s <<EOF
2936 .section ".opd","aw"
2941 .quad .LEfoo,.TOC.@tocbase,0
2947 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
2948 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
2949 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
2950 gcc_cv_ld_no_dot_syms=yes
2952 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
2955 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
2956 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
2957 [Define if your PowerPC64 linker only needs function descriptor syms.])
2962 if test x$with_sysroot = x && test x$host = x$target \
2963 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2964 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2965 [Define to PREFIX/include if cpp should also search that directory.])
2968 # Find out what GC implementation we want, or may, use.
2970 [ --with-gc={page,zone} choose the garbage collection mechanism to use
2977 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2982 echo "Using $GGC for garbage collection."
2984 # Use the system's zlib library.
2986 zlibinc="-I\$(srcdir)/../zlib"
2987 AC_ARG_WITH(system-zlib,
2988 [ --with-system-zlib use installed libz],
2995 dnl Very limited version of automake's enable-maintainer-mode
2997 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2998 dnl maintainer-mode is disabled by default
2999 AC_ARG_ENABLE(maintainer-mode,
3000 [ --enable-maintainer-mode
3001 enable make rules and dependencies not useful
3002 (and sometimes confusing) to the casual installer],
3003 maintainer_mode=$enableval,
3006 AC_MSG_RESULT($maintainer_mode)
3008 if test "$maintainer_mode" = "yes"; then
3019 # Make empty files to contain the specs and options for each language.
3020 # Then add #include lines to for a compiler that has specs and/or options.
3025 for subdir in . $subdirs
3027 if test -f $srcdir/$subdir/lang.opt; then
3028 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3030 if test -f $srcdir/$subdir/lang-specs.h; then
3031 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3033 if test -f $srcdir/$subdir/$subdir-tree.def; then
3034 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3038 # These (without "all_") are set in each config-lang.in.
3039 # `language' must be a single word so is spelled singularly.
3044 all_outputs='Makefile gccbug mklibgcc libada-mk'
3045 # List of language makefile fragments.
3047 # List of language subdirectory makefiles. Deprecated.
3049 # Files for gengtype
3050 all_gtfiles="$target_gtfiles"
3051 # Files for gengtype with language
3052 all_gtfiles_files_langs=
3053 all_gtfiles_files_files=
3055 # Add the language fragments.
3056 # Languages are added via two mechanisms. Some information must be
3057 # recorded in makefile variables, these are defined in config-lang.in.
3058 # We accumulate them and plug them into the main Makefile.
3059 # The other mechanism is a set of hooks for each of the main targets
3060 # like `clean', `install', etc.
3062 language_hooks="Make-hooks"
3072 . ${srcdir}/$s/config-lang.in
3073 if test "x$language" = x
3075 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3078 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3079 if test -f ${srcdir}/$s/Makefile.in
3080 then all_lang_makefiles="$s/Makefile"
3082 all_languages="$all_languages $language"
3083 if test "x$boot_language" = xyes
3085 all_boot_languages="$all_boot_languages $language"
3087 all_compilers="$all_compilers $compilers"
3088 all_stagestuff="$all_stagestuff $stagestuff"
3089 all_outputs="$all_outputs $outputs"
3090 all_gtfiles="$all_gtfiles $gtfiles"
3093 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3094 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3098 # Pick up gtfiles for c
3101 . ${srcdir}/c-config-lang.in
3102 all_gtfiles="$all_gtfiles $gtfiles"
3105 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3106 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3110 for language in $all_languages
3112 check_languages="$check_languages check-$language"
3115 # We link each language in with a set of hooks, reached indirectly via
3120 target_list="all.build all.cross start.encap rest.encap tags \
3121 install-normal install-common install-man \
3122 uninstall info man srcextra srcman srcinfo \
3123 mostlyclean clean distclean maintainer-clean \
3124 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3125 for t in $target_list
3128 for lang in $all_languages
3132 echo "lang.$t: $x" >> Make-hooks
3141 echo "dir ." > .gdbinit
3142 echo "dir ${srcdir}" >> .gdbinit
3143 if test x$gdb_needs_out_file_path = xyes
3145 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3147 if test "x$subdirs" != x; then
3150 echo "dir ${srcdir}/$s" >> .gdbinit
3153 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3155 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3156 # absolute path for gcc_tooldir based on inserting the number of up-directory
3157 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3158 # $(libsubdir)/@(unlibsubdir) based path.
3159 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3160 # make and thus we'd get different behavior depending on where we built the
3162 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3163 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3165 changequote(<<, >>)dnl
3166 # An explanation of the sed strings:
3167 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3168 # -e 's|/$||' match a trailing forward slash and eliminates it
3169 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3170 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3172 # (*) Note this pattern overwrites the first character of the string
3173 # with a forward slash if one is not already present. This is not a
3174 # problem because the exact names of the sub-directories concerned is
3175 # unimportant, just the number of them matters.
3177 # The practical upshot of these patterns is like this:
3179 # prefix exec_prefix result
3180 # ------ ----------- ------
3182 # /foo/ /foo/bar ../
3183 # /foo /foo/bar/ ../
3184 # /foo/ /foo/bar/ ../
3185 # /foo /foo/bar/ugg ../../
3188 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3189 changequote([, ])dnl
3191 AC_SUBST(gcc_tooldir)
3194 # Find a directory in which to install a shared libgcc.
3196 AC_ARG_ENABLE(version-specific-runtime-libs,
3197 [ --enable-version-specific-runtime-libs
3198 specify that runtime libraries should be
3199 installed in a compiler-specific directory])
3201 AC_ARG_WITH(slibdir,
3202 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3203 slibdir="$with_slibdir",
3204 if test "${enable_version_specific_runtime_libs+set}" = set; then
3205 slibdir='$(libsubdir)'
3206 elif test "$host" != "$target"; then
3207 slibdir='$(build_tooldir)/lib'
3213 objdir=`${PWDCMD-pwd}`
3216 # Substitute configuration variables
3219 AC_SUBST(all_boot_languages)
3220 AC_SUBST(all_compilers)
3221 AC_SUBST(all_gtfiles)
3222 AC_SUBST(all_gtfiles_files_langs)
3223 AC_SUBST(all_gtfiles_files_files)
3224 AC_SUBST(all_lang_makefrags)
3225 AC_SUBST(all_lang_makefiles)
3226 AC_SUBST(all_languages)
3227 AC_SUBST(all_stagestuff)
3228 AC_SUBST(build_exeext)
3229 AC_SUBST(build_install_headers_dir)
3230 AC_SUBST(build_xm_file_list)
3231 AC_SUBST(build_xm_include_list)
3232 AC_SUBST(build_xm_defines)
3233 AC_SUBST(check_languages)
3234 AC_SUBST(cc_set_by_configure)
3235 AC_SUBST(quoted_cc_set_by_configure)
3236 AC_SUBST(cpp_install_dir)
3237 AC_SUBST(xmake_file)
3238 AC_SUBST(tmake_file)
3239 AC_SUBST(extra_gcc_objs)
3240 AC_SUBST(extra_headers_list)
3241 AC_SUBST(extra_objs)
3242 AC_SUBST(extra_parts)
3243 AC_SUBST(extra_passes)
3244 AC_SUBST(extra_programs)
3245 AC_SUBST(float_h_file)
3246 AC_SUBST(gcc_config_arguments)
3247 AC_SUBST(gcc_gxx_include_dir)
3248 AC_SUBST(libstdcxx_incdir)
3249 AC_SUBST(gcc_version)
3250 AC_SUBST(gcc_version_full)
3251 AC_SUBST(gcc_version_trigger)
3252 AC_SUBST(host_exeext)
3253 AC_SUBST(host_xm_file_list)
3254 AC_SUBST(host_xm_include_list)
3255 AC_SUBST(host_xm_defines)
3256 AC_SUBST(out_host_hook_obj)
3258 AC_SUBST(lang_opt_files)
3259 AC_SUBST(lang_specs_files)
3260 AC_SUBST(lang_tree_files)
3261 AC_SUBST(local_prefix)
3263 AC_SUBST(objc_boehm_gc)
3265 AC_SUBST(out_object_file)
3266 AC_SUBST(stage_prefix_set_by_configure)
3267 AC_SUBST(quoted_stage_prefix_set_by_configure)
3268 AC_SUBST(thread_file)
3269 AC_SUBST(tm_file_list)
3270 AC_SUBST(tm_include_list)
3271 AC_SUBST(tm_defines)
3272 AC_SUBST(tm_p_file_list)
3273 AC_SUBST(tm_p_include_list)
3274 AC_SUBST(xm_file_list)
3275 AC_SUBST(xm_include_list)
3276 AC_SUBST(xm_defines)
3277 AC_SUBST(c_target_objs)
3278 AC_SUBST(cxx_target_objs)
3279 AC_SUBST(target_cpu_default)
3281 AC_SUBST_FILE(language_hooks)
3283 TL_AC_GNU_MAKE_GCC_LIB_PATH
3286 if test x${build} = x${host} ; then
3287 if test x${host} = x${target} ; then
3288 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3290 echo "Links are now set up to build a cross-compiler" 1>&2
3291 echo " from ${host} to ${target}." 1>&2
3294 if test x${host} = x${target} ; then
3295 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3296 echo " for ${target}." 1>&2
3298 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3299 echo " from ${host} to ${target}." 1>&2
3303 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3304 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3306 # Configure the subdirectories
3307 # AC_CONFIG_SUBDIRS($subdirs)
3309 # Create the Makefile
3310 # and configure language subdirectories
3311 AC_CONFIG_FILES($all_outputs)
3313 AC_CONFIG_COMMANDS([default],
3315 case ${CONFIG_HEADERS} in
3316 *auto-host.h:config.in*)
3319 # Make sure all the subdirs exist.
3320 for d in $subdirs doc build
3322 test -d $d || mkdir $d
3324 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3325 # bootstrapping and the installation procedure can still use
3326 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3327 # FLAGS_TO_PASS has been modified to solve the problem there.
3328 # This is virtually a duplicate of what happens in configure.lang; we do
3329 # an extra check to make sure this only happens if ln -s can be used.
3332 for d in ${subdirs} ; do
3333 STARTDIR=`${PWDCMD-pwd}`
3335 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3338 $LN_S ../$t $t 2>/dev/null
3345 [subdirs='$subdirs'])