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 "$gcc_exec_prefix_setting" != "ok"; then
98 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
99 *** building gcc. Please change the environment variable
100 *** and run configure again.])
103 TL_AC_GCC_VERSION([$srcdir/..])
109 # Specify the local prefix
111 AC_ARG_WITH(local-prefix,
112 [ --with-local-prefix=DIR specifies directory to put local include],
113 [case "${withval}" in
114 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
116 *) local_prefix=$with_local_prefix ;;
119 # Default local prefix if it is empty
120 if test x$local_prefix = x; then
121 local_prefix=/usr/local
124 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
125 # passed in by the toplevel make and thus we'd get different behavior
126 # depending on where we built the sources.
128 # Specify the g++ header file directory
129 AC_ARG_WITH(gxx-include-dir,
130 [ --with-gxx-include-dir=DIR
131 specifies directory to put g++ header files],
132 [case "${withval}" in
133 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
135 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
138 if test x${gcc_gxx_include_dir} = x; then
139 if test x${enable_version_specific_runtime_libs} = xyes; then
140 gcc_gxx_include_dir='${libsubdir}/include/c++'
142 libstdcxx_incdir=c++/${gcc_version}
143 changequote(<<, >>)dnl
144 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
149 AC_ARG_WITH(cpp_install_dir,
150 [ --with-cpp-install-dir=DIR
151 install the user visible C preprocessor in DIR
152 (relative to PREFIX) as well as PREFIX/bin],
153 [if test x$withval = xyes; then
154 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
155 elif test x$withval != xno; then
156 cpp_install_dir=$withval
159 # We would like to our source tree to be readonly. However when releases or
160 # pre-releases are generated, the flex/bison generated files as well as the
161 # various formats of manuals need to be included along with the rest of the
162 # sources. Therefore we have --enable-generated-files-in-srcdir to do
165 AC_MSG_CHECKING([whether to place generated files in the source directory])
166 dnl generated-files-in-srcdir is disabled by default
167 AC_ARG_ENABLE(generated-files-in-srcdir,
168 [ --enable-generated-files-in-srcdir
169 put copies of generated files in source dir
170 intended for creating source tarballs for users
171 without texinfo bison or flex.],
172 generated_files_in_srcdir=$enableval,
173 generated_files_in_srcdir=no)
175 AC_MSG_RESULT($generated_files_in_srcdir)
177 if test "$generated_files_in_srcdir" = "yes"; then
184 # -------------------
185 # Find default linker
186 # -------------------
190 [ --with-gnu-ld arrange to work with GNU ld.],
191 gnu_ld_flag="$with_gnu_ld",
194 # With pre-defined ld
196 [ --with-ld arrange to use the specified ld (full pathname)],
197 DEFAULT_LINKER="$with_ld")
198 if test x"${DEFAULT_LINKER+set}" = x"set"; then
199 if test ! -x "$DEFAULT_LINKER"; then
200 AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
201 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
204 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
205 [Define to enable the use of a default linker.])
208 AC_MSG_CHECKING([whether a default linker was specified])
209 if test x"${DEFAULT_LINKER+set}" = x"set"; then
210 if test x"$gnu_ld_flag" = x"no"; then
211 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
213 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
219 # With demangler in GNU ld
220 AC_ARG_WITH(demangler-in-ld,
221 [ --with-demangler-in-ld try to use demangler in GNU ld.],
222 demangler_in_ld="$with_demangler_in_ld",
225 # ----------------------
226 # Find default assembler
227 # ----------------------
231 [ --with-gnu-as arrange to work with GNU as],
232 gas_flag="$with_gnu_as",
236 [ --with-as arrange to use the specified as (full pathname)],
237 DEFAULT_ASSEMBLER="$with_as")
238 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
239 if test ! -x "$DEFAULT_ASSEMBLER"; then
240 AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
241 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
244 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
245 [Define to enable the use of a default assembler.])
248 AC_MSG_CHECKING([whether a default assembler was specified])
249 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
250 if test x"$gas_flag" = x"no"; then
251 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
253 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
263 # If a non-executable a.out is present (e.g. created by GNU as above even if
264 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
265 # file, even when creating an executable, so an execution test fails.
266 # Remove possible default executable files to avoid this.
268 # FIXME: This really belongs into AC_PROG_CC and can be removed once
269 # Autoconf includes it.
270 rm -f a.out a.exe b.out
272 # Find the native compiler
275 # autoconf is lame and doesn't give us any substitution variable for this.
276 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
277 NO_MINUS_C_MINUS_O=yes
279 OUTPUT_OPTION='-o $@'
281 AC_SUBST(NO_MINUS_C_MINUS_O)
282 AC_SUBST(OUTPUT_OPTION)
284 # -------------------------
285 # Check C compiler features
286 # -------------------------
293 # sizeof(char) is 1 by definition.
294 AC_CHECK_SIZEOF(void *)
295 AC_CHECK_SIZEOF(short)
297 AC_CHECK_SIZEOF(long)
298 if test $ac_cv_c_long_long = yes; then
299 AC_CHECK_SIZEOF(long long)
301 if test $ac_cv_c___int64 = yes; then
302 AC_CHECK_SIZEOF(__int64)
305 # ---------------------
306 # Warnings and checking
307 # ---------------------
309 # Check $CC warning features (if it's GCC).
310 # We want to use -pedantic, but we don't want warnings about
313 # So, we only use -pedantic if we can disable those warnings.
316 [whether ${CC} accepts -Wno-long-long],
317 [ac_cv_prog_cc_w_no_long_long],
318 [save_CFLAGS="$CFLAGS"
319 CFLAGS="-Wno-long-long"
320 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
321 [ac_cv_prog_cc_w_no_long_long=yes],
322 [ac_cv_prog_cc_w_no_long_long=no])
323 CFLAGS="$save_CFLAGS"
327 [whether ${CC} accepts -Wno-variadic-macros],
328 [ac_cv_prog_cc_w_no_variadic_macros],
329 [save_CFLAGS="$CFLAGS"
330 CFLAGS="-Wno-variadic-macros"
331 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
332 [ac_cv_prog_cc_w_no_variadic_macros=yes],
333 [ac_cv_prog_cc_w_no_variadic_macros=no])
334 CFLAGS="$save_CFLAGS"
338 if test $ac_cv_prog_cc_w_no_long_long = yes \
339 && test $ac_cv_prog_cc_w_no_variadic_macros = yes ; then
340 strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros"
342 AC_SUBST(strict1_warn)
344 # Add -Wold-style-definition if it's accepted
346 [whether ${CC} accepts -Wold-style-definition],
347 [ac_cv_prog_cc_w_old_style_definition],
348 [save_CFLAGS="$CFLAGS"
349 CFLAGS="-Wold-style-definition"
350 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
351 [ac_cv_prog_cc_w_old_style_definition=yes],
352 [ac_cv_prog_cc_w_old_style_definition=no])
353 CFLAGS="$save_CFLAGS"
355 if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
356 strict1_warn="${strict1_warn} -Wold-style-definition"
359 # Enable -Werror, period.
360 AC_ARG_ENABLE(werror_always,
361 [ --enable-werror-always enable -Werror always], [],
362 [enable_werror_always=no])
363 if test x${enable_werror_always} = xyes ; then
364 strict1_warn="${strict1_warn} -Werror"
368 # If the native compiler is GCC, we can enable warnings even in stage1.
369 # That's useful for people building cross-compilers, or just running a
372 if test "x$GCC" = "xyes"; then
373 warn_cflags='$(GCC_WARN_CFLAGS)'
375 AC_SUBST(warn_cflags)
377 # Enable -Werror in bootstrap stage2 and later.
378 AC_ARG_ENABLE(werror,
379 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
380 [if test x$is_release = x ; then
381 # Default to "yes" on development branches.
384 # Default to "no" on release branches.
387 if test x$enable_werror = xyes ; then
392 # Enable expensive internal checks
393 AC_ARG_ENABLE(checking,
394 [ --enable-checking[=LIST]
395 enable expensive run-time checks. With LIST,
396 enable only specific categories of checks.
397 Categories are: assert,fold,gc,gcac,misc,
398 rtlflag,rtl,tree,valgrind,release,yes,all;],
399 [ac_checking_flags="${enableval}"],[
400 # Determine the default checks.
401 if test x$is_release = x ; then
402 ac_checking_flags=yes
404 ac_checking_flags=release
412 ac_gc_always_collect=
414 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
415 for check in $ac_checking_flags
418 yes) ac_assert_checking=1 ; ac_checking=1 ;
419 ac_tree_checking=1 ; ac_gc_checking=1 ;
420 ac_rtlflag_checking=1 ;;
421 no) ac_assert_checking= ; ac_checking= ;
422 ac_tree_checking= ; ac_rtl_checking= ;
423 ac_rtlflag_checking= ; ac_gc_checking= ;
424 ac_gc_always_collect= ; ac_fold_checking= ;;
425 all) ac_assert_checking=1 ; ac_checking=1 ;
426 ac_tree_checking=1 ; ac_rtl_checking=1 ;
427 ac_rtlflag_checking=1 ; ac_gc_checking=1 ;
428 ac_gc_always_collect=1 ; ac_fold_checking=1 ;;
429 release) ac_assert_checking=1 ;;
430 assert) ac_assert_checking=1 ;;
431 fold) ac_fold_checking=1 ;;
432 gc) ac_gc_checking=1 ;;
433 gcac) ac_gc_always_collect=1 ;;
434 misc) ac_checking=1 ;;
435 rtlflag) ac_rtlflag_checking=1 ;;
436 rtl) ac_rtl_checking=1 ;;
437 tree) ac_tree_checking=1 ;;
438 valgrind) ac_checking_valgrind=1 ;;
439 *) AC_MSG_ERROR(unknown check category $check) ;;
445 if test x$ac_checking != x ; then
446 AC_DEFINE(ENABLE_CHECKING, 1,
447 [Define if you want more run-time sanity checks. This one gets a grab
448 bag of miscellaneous but relatively cheap checks.])
449 nocommon_flag=-fno-common
451 AC_SUBST(nocommon_flag)
452 if test x$ac_assert_checking != x ; then
453 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
454 [Define if you want assertions enabled. This is a cheap check.])
456 if test x$ac_tree_checking != x ; then
457 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
458 [Define if you want all operations on trees (the basic data
459 structure of the front ends) to be checked for dynamic type safety
460 at runtime. This is moderately expensive. The tree browser debugging
461 routines will also be enabled by this option.
463 TREEBROWSER=tree-browser.o
465 AC_SUBST(TREEBROWSER)
466 if test x$ac_rtl_checking != x ; then
467 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
468 [Define if you want all operations on RTL (the basic data structure
469 of the optimizer and back end) to be checked for dynamic type safety
470 at runtime. This is quite expensive.])
472 if test x$ac_rtlflag_checking != x ; then
473 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
474 [Define if you want RTL flag accesses to be checked against the RTL
475 codes that are supported for each access macro. This is relatively
478 if test x$ac_gc_checking != x ; then
479 AC_DEFINE(ENABLE_GC_CHECKING, 1,
480 [Define if you want the garbage collector to do object poisoning and
481 other memory allocation checks. This is quite expensive.])
483 if test x$ac_gc_always_collect != x ; then
484 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
485 [Define if you want the garbage collector to operate in maximally
486 paranoid mode, validating the entire heap and collecting garbage at
487 every opportunity. This is extremely expensive.])
489 if test x$ac_fold_checking != x ; then
490 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
491 [Define if you want fold checked that it never destructs its argument.
492 This is quite expensive.])
494 valgrind_path_defines=
497 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
498 dnl # an if statement. This was the source of very frustrating bugs
499 dnl # in converting to autoconf 2.5x!
500 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
502 if test x$ac_checking_valgrind != x ; then
503 # It is certainly possible that there's valgrind but no valgrind.h.
504 # GCC relies on making annotations so we must have both.
505 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
507 [#include <valgrind/memcheck.h>
508 #ifndef VALGRIND_DISCARD
509 #error VALGRIND_DISCARD not defined
511 [gcc_cv_header_valgrind_memcheck_h=yes],
512 [gcc_cv_header_valgrind_memcheck_h=no])
513 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
514 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
516 [#include <memcheck.h>
517 #ifndef VALGRIND_DISCARD
518 #error VALGRIND_DISCARD not defined
520 [gcc_cv_header_memcheck_h=yes],
521 gcc_cv_header_memcheck_h=no)
522 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
523 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
524 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
525 if test "x$valgrind_path" = "x" \
526 || (test $have_valgrind_h = no \
527 && test $gcc_cv_header_memcheck_h = no \
528 && test $gcc_cv_header_valgrind_memcheck_h = no); then
529 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
531 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
532 valgrind_command="$valgrind_path -q"
533 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
534 [Define if you want to run subprograms and generated programs
535 through valgrind (a memory checker). This is extremely expensive.])
536 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
537 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
538 [Define if valgrind's valgrind/memcheck.h header is installed.])
540 if test $gcc_cv_header_memcheck_h = yes; then
541 AC_DEFINE(HAVE_MEMCHECK_H, 1,
542 [Define if valgrind's memcheck.h header is installed.])
545 AC_SUBST(valgrind_path_defines)
546 AC_SUBST(valgrind_command)
548 AC_ARG_ENABLE(mapped-location,
549 [ --enable-mapped-location location_t is fileline integer cookie],,
550 enable_mapped_location=no)
552 if test "$enable_mapped_location" = yes ; then
553 AC_DEFINE(USE_MAPPED_LOCATION, 1,
554 [Define if location_t is fileline integer cookie.])
557 # Enable code coverage collection
558 AC_ARG_ENABLE(coverage,
559 [ --enable-coverage[=LEVEL]
560 enable compiler's code coverage collection.
561 Use to measure compiler performance and locate
562 unused parts of the compiler. With LEVEL, specify
563 optimization. Values are opt, noopt,
565 [case "${enableval}" in
567 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
570 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
573 # a.k.a. --disable-coverage
577 AC_MSG_ERROR(unknown coverage setting $enableval)
581 AC_SUBST(coverage_flags)
583 AC_ARG_ENABLE(gather-detailed-mem-stats,
584 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
585 [enable_gather_detailed_mem_stats=no])
586 if test x$enable_gather_detailed_mem_stats = xyes ; then
587 AC_DEFINE(GATHER_STATISTICS, 1,
588 [Define to enable detailed memory allocation stats gathering.])
591 # -------------------------------
592 # Miscenalleous configure options
593 # -------------------------------
597 [ --with-stabs arrange to use stabs instead of host debug format],
601 # Determine whether or not multilibs are enabled.
602 AC_ARG_ENABLE(multilib,
603 [ --enable-multilib enable library support for multiple ABIs],
604 [], [enable_multilib=yes])
605 AC_SUBST(enable_multilib)
607 # Enable __cxa_atexit for C++.
608 AC_ARG_ENABLE(__cxa_atexit,
609 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
613 # Pass with no value to take the default
614 # Pass with a value to specify a thread package
615 AC_ARG_ENABLE(threads,
616 [ --enable-threads enable thread usage for target GCC
617 --enable-threads=LIB use LIB thread package for target GCC],,
620 AC_ARG_ENABLE(objc-gc,
621 [ --enable-objc-gc enable the use of Boehm's garbage collector with
622 the GNU Objective-C runtime],
623 if test x$enable_objc_gc = xno; then
631 [ --with-dwarf2 force the default debug format to be DWARF 2],
632 dwarf2="$with_dwarf2",
635 AC_ARG_ENABLE(shared,
636 [ --disable-shared don't provide a shared libgcc],
638 case $enable_shared in
642 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
643 for pkg in $enableval; do
644 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
651 ], [enable_shared=yes])
652 AC_SUBST(enable_shared)
655 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
657 case ${with_sysroot} in
658 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
659 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
662 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
663 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
665 if test "x$exec_prefix" = xNONE; then
666 if test "x$prefix" = xNONE; then
667 test_prefix=/usr/local
672 test_prefix=$exec_prefix
674 case ${TARGET_SYSTEM_ROOT} in
675 "${test_prefix}"|"${test_prefix}/"*|\
676 '${exec_prefix}'|'${exec_prefix}/'*)
677 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
678 TARGET_SYSTEM_ROOT_DEFINE="$t"
683 TARGET_SYSTEM_ROOT_DEFINE=
684 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
686 AC_SUBST(TARGET_SYSTEM_ROOT)
687 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
688 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
690 # Build with intermodule optimisations
691 AC_ARG_ENABLE(intermodule,
692 [ --enable-intermodule build the compiler in one step],
693 [case ${enable_intermodule} in
694 yes) onestep="-onestep";;
700 # Sanity check enable_languages in case someone does not run the toplevel
701 # configure # script.
702 AC_ARG_ENABLE(languages,
703 [ --enable-languages=LIST specify which front-ends to build],
704 [case ,${enable_languages}, in
706 # go safe -- we cannot be much sure without the toplevel
708 # analysis of which target libs are present and usable
712 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
717 enable_languages=c,${enable_languages}
720 [enable_languages=c])
723 for lang in ${srcdir}/*/config-lang.in
726 # The odd quoting in the next line works around
727 # an apparent bug in bash 1.12 on linux.
729 ${srcdir}/[*]/config-lang.in) ;;
731 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
732 if test "x$lang_alias" = x
734 echo "$lang doesn't set \$language." 1>&2
737 case ",$enable_languages," in
739 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
747 # -------------------------
748 # Checks for other programs
749 # -------------------------
753 # Find some useful tools
755 # We need awk to create options.c and options.h.
756 # Bail out if it's missing.
758 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
766 # By default, the Darwin ranlib will not treat common symbols as
767 # definitions when building the archive table of contents. Other
768 # ranlibs do that; pass an option to the Darwin ranlib that makes
769 # it behave similarly.
775 AC_SUBST(ranlib_flags)
779 # See if cmp has --ignore-initial.
780 gcc_AC_PROG_CMP_IGNORE_INITIAL
782 # See if we have the mktemp command.
783 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
785 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
787 # See if makeinfo has been installed and is modern enough
788 # that we can use it.
789 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
790 [GNU texinfo.* \([0-9][0-9.]*\)],
792 if test $gcc_cv_prog_makeinfo_modern = no; then
793 MAKEINFO="$MISSING makeinfo"
795 *** Makeinfo is missing or too old.
796 *** Info documentation will not be built.])
803 # Is pod2man recent enough to regenerate manpages?
804 AC_MSG_CHECKING([for recent Pod::Man])
805 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
807 GENERATED_MANPAGES=generated-manpages
812 AC_SUBST(GENERATED_MANPAGES)
815 dnl Don't use AC_PROG_LEX; we insist on flex.
816 dnl LEXLIB is not useful in gcc.
817 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
820 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
822 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
823 # check for build == host before using them.
826 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
827 && test -d ../binutils ; then
828 NM='$(objdir)/../binutils/nm-new'
830 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
834 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
835 && test -d ../binutils ; then
836 AR='$(objdir)/../binutils/ar'
838 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
842 # --------------------
843 # Checks for C headers
844 # --------------------
846 AC_MSG_CHECKING(for GNU C library)
847 AC_CACHE_VAL(gcc_cv_glibc,
849 [#include <features.h>],[
850 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
851 #error Not a GNU C library system
855 AC_MSG_RESULT($gcc_cv_glibc)
856 if test $gcc_cv_glibc = yes; then
857 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
860 # Need to reject headers which give warnings, so that the -Werror bootstrap
861 # works later. *sigh* This needs to come before all header checks.
868 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
869 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
870 sys/resource.h sys/param.h sys/times.h sys/stat.h \
871 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
873 # Check for thread headers.
874 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
875 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
877 # These tests can't be done till we know if we have limits.h.
885 # Stage specific cflags for build.
891 stage1_cflags="-Wa,-J"
897 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
898 # sources; use -no-cpp-precomp to get to GNU cpp.
899 # Apple's GCC has bugs in designated initializer handling, so disable
901 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
904 AC_SUBST(stage1_cflags)
906 # These libraries may be used by collect2.
907 # We may need a special search path to get them linked.
908 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
910 for libs in '' -lld -lmld \
911 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
912 '-L/usr/lib/cmplrs/cc3.11 -lmld'
915 AC_TRY_LINK_FUNC(ldopen,
916 [gcc_cv_collect2_libs="$libs"; break])
919 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
920 case $gcc_cv_collect2_libs in
922 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
924 AC_SUBST(COLLECT2_LIBS)
926 # When building Ada code on Alpha, we need exc_resume which is usually in
927 # -lexc. So test for it.
930 AC_SEARCH_LIBS(exc_resume, exc)
933 AC_SUBST(GNAT_LIBEXC)
935 # Some systems put ldexp and frexp in libm instead of libc; assume
936 # they're both in the same place. jcf-dump needs them.
939 AC_SEARCH_LIBS(ldexp, m)
944 # Use <inttypes.h> only if it exists,
945 # doesn't clash with <sys/types.h>, and declares intmax_t.
946 AC_MSG_CHECKING(for inttypes.h)
947 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
949 [#include <sys/types.h>
950 #include <inttypes.h>],
952 [gcc_cv_header_inttypes_h=yes],
953 gcc_cv_header_inttypes_h=no)])
954 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
955 if test $gcc_cv_header_inttypes_h = yes; then
956 AC_DEFINE(HAVE_INTTYPES_H, 1,
957 [Define if you have a working <inttypes.h> header file.])
960 dnl Disabled until we have a complete test for buggy enum bitfields.
961 dnl gcc_AC_C_ENUM_BF_UNSIGNED
963 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
964 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
965 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
966 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
967 putchar_unlocked putc_unlocked)
968 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
969 sysconf strsignal getrusage nl_langinfo scandir alphasort \
970 gettimeofday mbstowcs wcswidth mmap mincore setlocale \
973 if test x$ac_cv_func_mbstowcs = xyes; then
974 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
975 [ AC_TRY_RUN([#include <stdlib.h>
981 gcc_cv_func_mbstowcs_works=yes,
982 gcc_cv_func_mbstowcs_works=no,
983 gcc_cv_func_mbstowcs_works=yes)])
984 if test x$gcc_cv_func_mbstowcs_works = xyes; then
985 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
986 [Define this macro if mbstowcs does not crash when its
987 first argument is NULL.])
991 AC_CHECK_TYPE(ssize_t, int)
993 # Try to determine the array type of the second argument of getgroups
994 # for the target system (int or gid_t).
996 if test "${target}" = "${build}"; then
997 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
1000 # This condition may need some tweaking. It should include all
1001 # targets where the array type of the second argument of getgroups
1002 # is int and the type of gid_t is not equivalent to int.
1003 *-*-sunos* | *-*-ultrix*)
1004 TARGET_GETGROUPS_T=int
1007 TARGET_GETGROUPS_T=gid_t
1011 AC_SUBST(TARGET_GETGROUPS_T)
1013 gcc_AC_FUNC_PRINTF_PTR
1014 gcc_AC_FUNC_MMAP_BLACKLIST
1018 # Under VMS, vfork works very differently than on Unix. The standard test
1019 # won't work, and it isn't easily adaptable. It makes more sense to
1021 ac_cv_func_vfork_works=yes
1027 # Until we have in-tree GNU iconv:
1029 AC_SUBST(LIBICONV_DEP)
1035 # We will need to find libiberty.h and ansidecl.h
1036 saved_CFLAGS="$CFLAGS"
1037 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1038 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd strsignal \
1039 strstr errno snprintf vasprintf malloc realloc calloc free \
1040 basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
1041 #include "ansidecl.h"
1042 #include "system.h"])
1044 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1045 #include "ansidecl.h"
1047 #ifdef HAVE_SYS_RESOURCE_H
1048 #include <sys/resource.h>
1053 #include "ansidecl.h"
1055 #ifdef HAVE_SYS_RESOURCE_H
1056 #include <sys/resource.h>
1058 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
1059 [Define to \`long' if <sys/resource.h> doesn't define.])])
1061 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1062 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1063 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1064 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1065 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1066 #include "ansidecl.h"
1075 gcc_AC_CHECK_DECLS(times, , ,[
1076 #include "ansidecl.h"
1078 #ifdef HAVE_SYS_TIMES_H
1079 #include <sys/times.h>
1083 # More time-related stuff.
1084 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1086 #include "ansidecl.h"
1088 #ifdef HAVE_SYS_TIMES_H
1089 #include <sys/times.h>
1091 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
1092 if test $ac_cv_struct_tms = yes; then
1093 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1094 [Define if <sys/times.h> defines struct tms.])
1097 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1098 # revisit after autoconf 2.50.
1099 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1101 #include "ansidecl.h"
1103 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
1104 if test $gcc_cv_type_clock_t = yes; then
1105 AC_DEFINE(HAVE_CLOCK_T, 1,
1106 [Define if <time.h> defines clock_t.])
1109 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1110 CFLAGS="$saved_CFLAGS"
1112 gcc_AC_INITFINI_ARRAY
1114 # mkdir takes a single argument on some systems.
1115 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1123 # With Setjmp/Longjmp based exception handling.
1124 AC_ARG_ENABLE(sjlj-exceptions,
1125 [ --enable-sjlj-exceptions
1126 arrange to use setjmp/longjmp exception handling],
1127 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1128 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1129 [Define 0/1 to force the choice for exception handling model.])])
1131 # For platforms with the unwind ABI which includes an unwind library,
1132 # libunwind, we can choose to use the system libunwind.
1133 AC_ARG_WITH(system-libunwind,
1134 [ --with-system-libunwind use installed libunwind])
1136 # --------------------------------------------------------
1137 # Build, host, and target specific configuration fragments
1138 # --------------------------------------------------------
1140 # Collect build-machine-specific information.
1141 . ${srcdir}/config.build
1143 # Collect host-machine-specific information.
1144 . ${srcdir}/config.host
1148 # Collect target-machine-specific information.
1149 . ${srcdir}/config.gcc
1151 extra_objs="${host_extra_objs} ${extra_objs}"
1152 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1154 # Default the target-machine variables that were not explicitly set.
1155 if test x"$tm_file" = x
1156 then tm_file=$cpu_type/$cpu_type.h; fi
1158 if test x"$extra_headers" = x
1159 then extra_headers=; fi
1161 if test x$md_file = x
1162 then md_file=$cpu_type/$cpu_type.md; fi
1164 if test x$out_file = x
1165 then out_file=$cpu_type/$cpu_type.c; fi
1167 if test x"$tmake_file" = x
1168 then tmake_file=$cpu_type/t-$cpu_type
1171 if test x"$dwarf2" = xyes
1172 then tm_file="$tm_file tm-dwarf2.h"
1175 # Say what files are being used for the output code and MD file.
1176 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1177 echo "Using \`$srcdir/config/$md_file' as machine description file."
1179 # If any of the xm_file variables contain nonexistent files, warn
1180 # about them and drop them.
1183 for x in $build_xm_file; do
1184 if test -f $srcdir/config/$x
1186 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1192 for x in $host_xm_file; do
1193 if test -f $srcdir/config/$x
1195 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1201 for x in $xm_file; do
1202 if test -f $srcdir/config/$x
1204 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1210 for f in $tm_file; do
1213 if test $count = ax; then
1214 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1216 echo "Using the following target machine macro files:"
1217 for f in $tm_file; do
1218 echo " $srcdir/config/$f"
1222 if test x$need_64bit_hwint = xyes; then
1223 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1224 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1227 if test x$use_long_long_for_widest_fast_int = xyes; then
1228 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1229 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1230 efficiently supported by the host hardware.])
1234 for f in $host_xm_file; do
1237 if test $count = a; then
1239 elif test $count = ax; then
1240 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1242 echo "Using the following host machine macro files:"
1243 for f in $host_xm_file; do
1244 echo " $srcdir/config/$f"
1247 echo "Using ${out_host_hook_obj} for host machine hooks."
1249 if test "$host_xm_file" != "$build_xm_file"; then
1251 for f in $build_xm_file; do
1254 if test $count = a; then
1256 elif test $count = ax; then
1257 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1259 echo "Using the following build machine macro files:"
1260 for f in $build_xm_file; do
1261 echo " $srcdir/config/$f"
1270 # Check if a valid thread package
1271 case ${enable_threads} in
1274 target_thread_file='single'
1278 target_thread_file='single'
1280 aix | dce | gnat | irix | posix | posix95 | rtems | \
1281 single | solaris | vxworks | win32 )
1282 target_thread_file=${enable_threads}
1285 echo "${enable_threads} is an unknown thread package" 1>&2
1290 if test x${thread_file} = x; then
1291 # No thread file set by target-specific clauses in config.gcc,
1292 # so use file chosen by default logic above
1293 thread_file=${target_thread_file}
1296 # Make gthr-default.h if we have a thread file.
1298 if test $thread_file != single; then
1299 rm -f gthr-default.h
1300 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1301 gthread_flags=-DHAVE_GTHR_DEFAULT
1303 AC_SUBST(gthread_flags)
1310 if test x$enable___cxa_atexit = xyes || \
1311 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1312 if test x$host = x$target; then
1313 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1314 [echo "__cxa_atexit can't be enabled on this target"])
1316 # We can't check for __cxa_atexit when building a cross, so assume
1320 if test x$use_cxa_atexit = xyes; then
1321 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1322 [Define if you want to use __cxa_atexit, rather than atexit, to
1323 register C++ destructors for local statics and global objects.
1324 This is essential for fully standards-compliant handling of
1325 destructors, but requires __cxa_atexit in libc.])
1329 # Look for a file containing extra machine modes.
1330 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1331 extra_modes_file='$(srcdir)'/config/${extra_modes}
1332 AC_SUBST(extra_modes_file)
1333 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1334 [Define to the name of a file containing a list of extra machine modes
1335 for this architecture.])
1338 # auto-host.h is the file containing items generated by autoconf and is
1339 # the first file included by config.h.
1340 # If host=build, it is correct to have bconfig include auto-host.h
1341 # as well. If host!=build, we are in error and need to do more
1342 # work to find out the build config parameters.
1343 if test x$host = x$build
1345 build_auto=auto-host.h
1347 # We create a subdir, then run autoconf in the subdir.
1348 # To prevent recursion we set host and build for the new
1349 # invocation of configure to the build for this invocation
1356 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1357 *) realsrcdir=../${srcdir};;
1359 saved_CFLAGS="${CFLAGS}"
1360 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1361 ${realsrcdir}/configure \
1362 --enable-languages=${enable_languages-all} \
1363 --target=$target_alias --host=$build_alias --build=$build_alias
1364 CFLAGS="${saved_CFLAGS}"
1366 # We just finished tests for the build machine, so rename
1367 # the file auto-build.h in the gcc directory.
1368 mv auto-host.h ../auto-build.h
1371 build_auto=auto-build.h
1373 AC_SUBST(build_subdir)
1375 tm_file="${tm_file} defaults.h"
1376 tm_p_file="${tm_p_file} tm-preds.h"
1377 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1378 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1379 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1380 # put this back in temporarily.
1381 xm_file="ansidecl.h ${xm_file}"
1388 # Compile in configure arguments.
1389 if test -f configargs.h ; then
1390 # Being re-configured.
1391 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1392 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1394 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1397 # Double all backslashes and backslash all quotes to turn
1398 # gcc_config_arguments into a C string.
1399 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1400 $gcc_config_arguments
1402 gcc_config_arguments_str=`cat conftest.out`
1405 cat > configargs.h <<EOF
1406 /* Generated automatically. */
1407 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1408 static const char thread_model[] = "$thread_file";
1410 static const struct {
1411 const char *name, *value;
1412 } configure_default_options[] = $configure_default_options;
1416 # Internationalization
1418 VERSION="$gcc_version"
1419 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
1420 [The name of this program for internationalization purposes.])
1424 ZW_GNU_GETTEXT_SISTER_DIR
1426 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1427 # -liconv on the link line twice.
1428 case "$LIBINTL" in *$LIBICONV*)
1432 # Windows32 Registry support for specifying GCC installation paths.
1433 AC_ARG_ENABLE(win32-registry,
1434 [ --disable-win32-registry
1435 disable lookup of installation paths in the
1436 Registry on Windows hosts
1437 --enable-win32-registry enable registry lookup (default)
1438 --enable-win32-registry=KEY
1439 use KEY instead of GCC version as the last portion
1440 of the registry key],,)
1442 win32 | pe | cygwin* | mingw32* | uwin*)
1443 AC_MSG_CHECKING(whether windows registry support is requested)
1444 if test "x$enable_win32_registry" != xno; then
1445 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1446 [Define to 1 if installation paths should be looked up in Windows32
1447 Registry. Ignored on non windows32 hosts.])
1449 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1454 # Check if user specified a different registry key.
1455 case "x${enable_win32_registry}" in
1458 gcc_cv_win32_registry_key="$VERSION"
1461 # no registry lookup.
1462 gcc_cv_win32_registry_key=''
1465 # user-specified key.
1466 gcc_cv_win32_registry_key="$enable_win32_registry"
1470 if test "x$enable_win32_registry" != xno; then
1471 AC_MSG_CHECKING(registry key on windows hosts)
1472 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1473 [Define to be the last portion of registry key on windows hosts.])
1474 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1479 # Get an absolute path to the GCC top-level source directory
1480 holddir=`${PWDCMD-pwd}`
1482 topdir=`${PWDCMD-pwd}`
1485 # Conditionalize the makefile for this host machine.
1487 for f in ${host_xmake_file}
1489 if test -f ${srcdir}/config/$f
1491 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1495 # Conditionalize the makefile for this target machine.
1497 for f in ${tmake_file}
1499 if test -f ${srcdir}/config/$f
1501 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1504 tmake_file="${tmake_file_}"
1506 # If the host doesn't support symlinks, modify CC in
1507 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1508 # Otherwise, we can use "CC=$(CC)".
1512 cc_set_by_configure="\$(CC)"
1513 quoted_cc_set_by_configure="\$(CC)"
1514 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1515 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1518 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1519 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1520 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1521 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1525 # This is a terrible hack which will go away when a gnattools directory
1527 cc_for_cross_gnattools=${CC}
1528 AC_SUBST(cc_for_cross_gnattools)
1530 out_object_file=`basename $out_file .c`.o
1534 for f in $tm_file; do
1537 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1538 tm_include_list="${tm_include_list} $f"
1541 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1542 tm_include_list="${tm_include_list} config/$f"
1549 for f in $tm_p_file; do
1552 tm_p_file_list="${tm_p_file_list} $f"
1553 tm_p_include_list="${tm_p_include_list} $f"
1556 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1557 tm_p_include_list="${tm_p_include_list} config/$f"
1563 for f in $xm_file; do
1566 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1567 xm_include_list="${xm_include_list} $f"
1570 xm_file_list="${xm_file_list} $f"
1571 xm_include_list="${xm_include_list} $f"
1574 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1575 xm_include_list="${xm_include_list} config/$f"
1581 host_xm_include_list=
1582 for f in $host_xm_file; do
1585 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1586 host_xm_include_list="${host_xm_include_list} $f"
1589 host_xm_file_list="${host_xm_file_list} $f"
1590 host_xm_include_list="${host_xm_include_list} $f"
1593 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1594 host_xm_include_list="${host_xm_include_list} config/$f"
1600 for f in $build_xm_file; do
1603 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1604 build_xm_include_list="${build_xm_include_list} $f"
1606 auto-build.h | auto-host.h )
1607 build_xm_file_list="${build_xm_file_list} $f"
1608 build_xm_include_list="${build_xm_include_list} $f"
1611 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1612 build_xm_include_list="${build_xm_include_list} config/$f"
1617 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1618 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1619 CROSS= AC_SUBST(CROSS)
1620 ALL=all.internal AC_SUBST(ALL)
1621 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1622 if test x$host != x$target
1624 CROSS="-DCROSS_COMPILE"
1626 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1627 case "$host","$target" in
1628 # Darwin crosses can use the host system's libraries and headers,
1629 # because of the fat library support. Of course, it must be the
1630 # same version of Darwin on both sides. Allow the user to
1631 # just say --target=foo-darwin without a version number to mean
1632 # "the version on this system".
1633 *-*-darwin*,*-*-darwin*)
1634 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1635 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1636 if test $hostos = $targetos -o $targetos = darwin ; then
1638 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1643 i?86-*-*,x86_64-*-* \
1644 | powerpc*-*-*,powerpc64*-*-*)
1645 CROSS="$CROSS -DNATIVE_CROSS" ;;
1647 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1648 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1649 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1652 # If this is a cross-compiler that does not
1653 # have its own set of headers then define
1656 # If this is using newlib, without having the headers available now,
1657 # then define inhibit_libc in LIBGCC2_CFLAGS.
1658 # This prevents libgcc2 from containing any code which requires libc
1661 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1662 test x$with_newlib = xyes ; } &&
1663 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1664 inhibit_libc=-Dinhibit_libc
1666 AC_SUBST(inhibit_libc)
1668 # When building gcc with a cross-compiler, we need to adjust things so
1669 # that the generator programs are still built with the native compiler.
1670 # Also, we cannot run fixincludes or fix-header.
1672 # These are the normal (build=host) settings:
1673 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1674 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1675 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1677 # Possibly disable fixproto, on a per-target basis.
1678 case ${use_fixproto} in
1683 STMP_FIXPROTO=stmp-fixproto
1686 AC_SUBST(STMP_FIXPROTO)
1688 # And these apply if build != host, or we are generating coverage data
1689 if test x$build != x$host || test "x$coverage_flags" != x
1691 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1693 if test "x$TARGET_SYSTEM_ROOT" = x; then
1694 if test "x$STMP_FIXPROTO" != x; then
1695 STMP_FIXPROTO=stmp-install-fixproto
1700 # Expand extra_headers to include complete path.
1701 # This substitutes for lots of t-* files.
1703 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1704 for file in ${extra_headers} ; do
1705 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1708 # Define collect2 in Makefile.
1709 case $host_can_use_collect2 in
1711 *) collect2='collect2$(exeext)' ;;
1713 AC_SUBST([collect2])
1715 # Add a definition of USE_COLLECT2 if system wants one.
1716 case $use_collect2 in
1717 no) use_collect2= ;;
1720 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1721 xm_defines="${xm_defines} USE_COLLECT2"
1722 case $host_can_use_collect2 in
1724 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1730 # ---------------------------
1731 # Assembler & linker features
1732 # ---------------------------
1734 # Identify the assembler which will work hand-in-glove with the newly
1735 # built GCC, so that we can examine its features. This is the assembler
1736 # which will be driven by the driver program.
1738 # If build != host, and we aren't building gas in-tree, we identify a
1739 # build->target assembler and hope that it will have the same features
1740 # as the host->target assembler we'll be using.
1741 AC_MSG_CHECKING(what assembler to use)
1744 gcc_cv_gas_major_version=
1745 gcc_cv_gas_minor_version=
1746 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1747 if test -x "$DEFAULT_ASSEMBLER"; then
1748 gcc_cv_as="$DEFAULT_ASSEMBLER"
1749 elif test -x as$build_exeext; then
1750 # Build using assembler in the current directory.
1751 gcc_cv_as=./as$build_exeext
1752 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1753 && test -f ../gas/Makefile \
1754 && test x$build = x$host; then
1755 # Single tree build which includes gas. We want to prefer it
1756 # over whatever linker top-level may have detected, since
1757 # we'll use what we're building after installation anyway.
1759 _gcc_COMPUTE_GAS_VERSION
1760 rm -f as$build_exeext
1761 $LN_S ../gas/as-new$build_exeext as$build_exeext 2>/dev/null
1762 in_tree_gas_is_elf=no
1763 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1764 || (grep 'obj_format = multi' ../gas/Makefile \
1765 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1767 in_tree_gas_is_elf=yes
1769 m4_pattern_allow([AS_FOR_TARGET])dnl
1770 elif test -x "$AS_FOR_TARGET"; then
1771 gcc_cv_as="$AS_FOR_TARGET"
1772 elif test -x "$AS" && test x$host = x$target; then
1776 if test "x$gcc_cv_as" = x; then
1777 # Search the same directories that the installed compiler will
1778 # search. Else we may find the wrong assembler and lose. If we
1779 # do not find a suitable assembler binary, then try the user's
1782 # Also note we have to check MD_EXEC_PREFIX before checking the
1783 # user's path. Unfortunately, there is no good way to get at the
1784 # value of MD_EXEC_PREFIX here. So we do a brute force search
1785 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1786 # to be fixed as part of the make/configure rewrite too.
1788 if test "x$exec_prefix" = xNONE; then
1789 if test "x$prefix" = xNONE; then
1790 test_prefix=/usr/local
1795 test_prefix=$exec_prefix
1798 # If the loop below does not find an assembler, then use whatever
1799 # one we can find in the users's path.
1801 if test "x$program_prefix" != xNONE; then
1802 gcc_cv_as=${program_prefix}as$build_exeext
1804 gcc_cv_as=`echo as | sed "${program_transform_name}"`$build_exeext
1807 if test x$host = x$build; then
1808 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1809 $test_prefix/libexec/gcc/$target_noncanonical \
1810 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1811 /usr/lib/gcc/$target_noncanonical \
1812 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1813 $test_prefix/$target_noncanonical/bin"
1818 if test x$host = x$target; then
1819 test_dirs="$test_dirs \
1824 /bsd43/usr/lib/cmplrs/cc \
1825 /usr/cross64/usr/bin \
1826 /usr/lib/cmplrs/cc \
1827 /sysv/usr/lib/cmplrs/cc \
1828 /svr4/usr/lib/cmplrs/cc \
1832 for dir in $test_dirs; do
1833 if test -x $dir/as$build_exeext; then
1834 gcc_cv_as=$dir/as$build_exeext
1839 case $in_tree_gas in
1841 AC_MSG_RESULT("newly built gas")
1844 AC_MSG_RESULT($gcc_cv_as)
1848 # Identify the linker which will work hand-in-glove with the newly
1849 # built GCC, so that we can examine its features. This is the linker
1850 # which will be driven by the driver program.
1852 # If build != host, and we aren't building gas in-tree, we identify a
1853 # build->target linker and hope that it will have the same features
1854 # as the host->target linker we'll be using.
1855 AC_MSG_CHECKING(what linker to use)
1858 gcc_cv_gld_major_version=
1859 gcc_cv_gld_minor_version=
1860 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1861 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1862 if test -x "$DEFAULT_LINKER"; then
1863 gcc_cv_ld="$DEFAULT_LINKER"
1864 elif test -x collect-ld$build_exeext; then
1865 # Build using linker in the current directory.
1866 gcc_cv_ld=./collect-ld$build_exeext
1867 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1868 && test -f ../ld/Makefile \
1869 && test x$build = x$host; then
1870 # Single tree build which includes ld. We want to prefer it
1871 # over whatever linker top-level may have detected, since
1872 # we'll use what we're building after installation anyway.
1874 in_tree_ld_is_elf=no
1875 if (grep 'EMUL = .*elf' ../ld/Makefile \
1876 || grep 'EMUL = .*linux' ../ld/Makefile \
1877 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1878 in_tree_ld_is_elf=yes
1880 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
1883 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1885 if test x$gcc_cv_gld_version != x; then
1890 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1891 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1893 rm -f collect-ld$build_exeext
1894 $LN_S ../ld/ld-new$build_exeext collect-ld$build_exeext 2>/dev/null
1895 elif test -x "$LD_FOR_TARGET"; then
1896 gcc_cv_ld="$LD_FOR_TARGET"
1897 elif test -x "$LD" && test x$host = x$target; then
1901 if test "x$gcc_cv_ld" = x; then
1902 # Search the same directories that the installed compiler will
1903 # search. Else we may find the wrong linker and lose. If we
1904 # do not find a suitable linker binary, then try the user's
1907 # Also note we have to check MD_EXEC_PREFIX before checking the
1908 # user's path. Unfortunately, there is no good way to get at the
1909 # value of MD_EXEC_PREFIX here. So we do a brute force search
1910 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1911 # to be fixed as part of the make/configure rewrite too.
1913 if test "x$exec_prefix" = xNONE; then
1914 if test "x$prefix" = xNONE; then
1915 test_prefix=/usr/local
1920 test_prefix=$exec_prefix
1923 # If the loop below does not find an linker, then use whatever
1924 # one we can find in the users's path.
1926 if test "x$program_prefix" != xNONE; then
1927 gcc_cv_ld=${program_prefix}ld$build_exeext
1929 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$build_exeext
1932 if test x$host = x$build; then
1933 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1934 $test_prefix/libexec/gcc/$target_noncanonical \
1935 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1936 /usr/lib/gcc/$target_noncanonical \
1937 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1938 $test_prefix/$target_noncanonical/bin"
1943 if test x$host = x$target; then
1944 test_dirs="$test_dirs \
1949 /bsd43/usr/lib/cmplrs/cc \
1950 /usr/cross64/usr/bin \
1951 /usr/lib/cmplrs/cc \
1952 /sysv/usr/lib/cmplrs/cc \
1953 /svr4/usr/lib/cmplrs/cc \
1957 for dir in $test_dirs; do
1958 if test -x $dir/ld$build_exeext; then
1959 gcc_cv_ld=$dir/ld$build_exeext
1966 AC_MSG_RESULT("newly built ld")
1969 AC_MSG_RESULT($gcc_cv_ld)
1973 # Figure out what nm we will be using.
1974 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1975 AC_MSG_CHECKING(what nm to use)
1977 if test -x nm$build_exeext; then
1978 gcc_cv_nm=./nm$build_exeext
1979 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1980 && test -f ../binutils/Makefile; then
1981 # Single tree build which includes binutils.
1983 gcc_cv_nm=./nm$build_exeext
1984 rm -f nm$build_exeext
1985 $LN_S ../binutils/nm-new$build_exeext nm$build_exeext 2>/dev/null
1986 elif test "x$program_prefix" != xNONE; then
1987 gcc_cv_nm=${program_prefix}nm$build_exeext
1989 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$build_exeext
1992 yes) AC_MSG_RESULT("newly built nm") ;;
1993 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1996 # Figure out what objdump we will be using.
1997 AC_MSG_CHECKING(what objdump to use)
1999 if test -x objdump$build_exeext; then
2000 gcc_cv_objdump=./objdump$build_exeext
2001 elif test -f $gcc_cv_binutils_srcdir/configure.in \
2002 && test -f ../binutils/Makefile; then
2003 # Single tree build which includes binutils.
2005 gcc_cv_objdump=./objdump$build_exeext
2006 rm -f objdump$build_exeext
2007 $LN_S ../binutils/objdump$build_exeext objdump$build_exeext 2>/dev/null
2008 elif test "x$program_prefix" != xNONE; then
2009 gcc_cv_objdump=${program_prefix}objdump$build_exeext
2011 gcc_cv_objdump=`echo objdump | \
2012 sed "${program_transform_name}"`$build_exeext
2014 case $in_tree_objdump in
2015 yes) AC_MSG_RESULT("newly built objdump") ;;
2016 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
2019 # Figure out what assembler alignment features are present.
2020 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
2024 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
2025 [Define if your assembler supports .balign and .p2align.])])
2027 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
2030 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
2031 [Define if your assembler supports specifying the maximum number
2032 of bytes to skip when using the GAS .p2align command.])])
2034 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
2036 [conftest_label1: .word 0
2038 conftest_label2: .word 0
2040 [if test x$gcc_cv_nm != x; then
2041 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
2042 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
2043 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
2045 else gcc_cv_as_subsection_m1=yes
2047 rm -f conftest.nm1 conftest.nm2
2049 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2050 [Define if your assembler supports .subsection and .subsection -1 starts
2051 emitting at the beginning of your section.])])
2053 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2056 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2058 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
2061 .NSUBSPA $CODE$,COMDAT],,
2062 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
2064 # .hidden needs to be supported in both the assembler and the linker,
2065 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2066 # This is irritatingly difficult to feature test for; we have to check the
2067 # date string after the version number. If we've got an in-tree
2068 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2070 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2071 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2076 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2077 [if test $in_tree_ld = yes ; then
2079 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2080 && test $in_tree_ld_is_elf = yes; then
2081 gcc_cv_ld_hidden=yes
2084 gcc_cv_ld_hidden=yes
2085 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2086 if echo "$ld_ver" | grep GNU > /dev/null; then
2088 ld_vers=`echo $ld_ver | sed -n \
2089 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2090 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2091 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2092 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2093 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2094 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2095 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2096 if test 0"$ld_date" -lt 20020404; then
2097 if test -n "$ld_date"; then
2098 # If there was date string, but was earlier than 2002-04-04, fail
2100 elif test -z "$ld_vers"; then
2101 # If there was no date string nor ld version number, something is wrong
2104 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2105 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2106 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2107 test -z "$ld_vers_patch" && ld_vers_patch=0
2108 if test "$ld_vers_major" -lt 2; then
2110 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2111 gcc_cv_ld_hidden="no"
2112 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2120 hppa64*-*-hpux* | ia64*-*-hpux*)
2121 gcc_cv_ld_hidden=yes
2129 libgcc_visibility=no
2130 AC_SUBST(libgcc_visibility)
2131 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2132 libgcc_visibility=yes
2133 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2134 [Define if your assembler and linker support .hidden.])
2137 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2138 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2146 [# GAS versions before 2.11 do not support uleb128,
2147 # despite appearing to.
2148 # ??? There exists an elf-specific test that will crash
2149 # the assembler. Perhaps it's better to figure out whether
2150 # arbitrary sections are supported and try the test.
2151 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2152 if echo "$as_ver" | grep GNU > /dev/null; then
2154 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2155 as_major=`echo $as_ver | sed 's/\..*//'`
2156 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2158 if test $as_major -eq 2 && test $as_minor -lt 11
2160 else gcc_cv_as_leb128=yes
2163 [AC_DEFINE(HAVE_AS_LEB128, 1,
2164 [Define if your assembler supports .sleb128 and .uleb128.])])
2166 # GAS versions up to and including 2.11.0 may mis-optimize
2168 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2176 .section .eh_frame,"aw",@progbits
2178 .4byte .LECIE1-.LSCIE1
2192 .4byte .LEFDE1-.LASFDE1
2194 .4byte .LASFDE1-__FRAME_BEGIN__
2202 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2203 cat > conftest.lit <<EOF
2204 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2205 0010 01000000 12000000 18000000 00000000 ................
2206 0020 08000000 04080000 0044 .........D @&t@
2208 cat > conftest.big <<EOF
2209 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2210 0010 00000001 00000012 00000018 00000000 ................
2211 0020 00000008 04000000 0844 .........D @&t@
2213 # If the assembler didn't choke, and we can objdump,
2214 # and we got the correct data, then succeed.
2215 if test x$gcc_cv_objdump != x \
2216 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2217 | tail -3 > conftest.got \
2218 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2219 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2221 gcc_cv_as_eh_frame=yes
2222 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2223 gcc_cv_as_eh_frame=buggy
2225 # Uh oh, what do we do now?
2226 gcc_cv_as_eh_frame=no
2229 if test $gcc_cv_as_eh_frame = buggy; then
2230 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2231 [Define if your assembler mis-optimizes .eh_frame data.])
2234 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2235 [elf,2,12,0], [--fatal-warnings],
2236 [.section .rodata.str, "aMS", @progbits, 1])
2237 if test $gcc_cv_as_shf_merge = no; then
2238 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2239 [elf,2,12,0], [--fatal-warnings],
2240 [.section .rodata.str, "aMS", %progbits, 1])
2242 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2243 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2244 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2246 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2247 [elf,2,15,91], [--fatal-warnings],
2248 [.section .text,"axG",@progbits,.foo,comdat])
2249 if test $gcc_cv_as_comdat_group = yes; then
2250 gcc_cv_as_comdat_group_percent=no
2252 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2253 [elf,2,15,91], [--fatal-warnings],
2254 [.section .text,"axG",%progbits,.foo,comdat])
2256 AC_DEFINE_UNQUOTED(HAVE_GAS_COMDAT_GROUP,
2257 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2258 [Define 0/1 if your assembler supports COMDAT group.])
2260 # Thread-local storage - the check is heavily parametrized.
2269 .section ".tdata","awT",@progbits
2272 ldq $27,__tls_get_addr($29) !literal!1
2273 lda $16,foo($29) !tlsgd!1
2274 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2275 ldq $27,__tls_get_addr($29) !literal!2
2276 lda $16,foo($29) !tlsldm!2
2277 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2278 ldq $1,foo($29) !gotdtprel
2279 ldah $2,foo($29) !dtprelhi
2280 lda $3,foo($2) !dtprello
2281 lda $4,foo($29) !dtprel
2282 ldq $1,foo($29) !gottprel
2283 ldah $2,foo($29) !tprelhi
2284 lda $3,foo($2) !tprello
2285 lda $4,foo($29) !tprel'
2288 tls_as_opt=--fatal-warnings
2292 .section ".tdata","awT",@progbits
2301 .section ".tdata","awT",@progbits
2305 leal foo@TLSGD(,%ebx,1), %eax
2306 leal foo@TLSLDM(%ebx), %eax
2307 leal foo@DTPOFF(%eax), %edx
2308 movl foo@GOTTPOFF(%ebx), %eax
2309 subl foo@GOTTPOFF(%ebx), %eax
2310 addl foo@GOTNTPOFF(%ebx), %eax
2311 movl foo@INDNTPOFF, %eax
2312 movl $foo@TPOFF, %eax
2313 subl $foo@TPOFF, %eax
2314 leal foo@NTPOFF(%ecx), %eax'
2317 tls_as_opt=--fatal-warnings
2321 .section ".tdata","awT",@progbits
2325 leaq foo@TLSGD(%rip), %rdi
2326 leaq foo@TLSLD(%rip), %rdi
2327 leaq foo@DTPOFF(%rax), %rdx
2328 movq foo@GOTTPOFF(%rip), %rax
2329 movq $foo@TPOFF, %rax'
2332 tls_as_opt=--fatal-warnings
2336 .section ".tdata","awT",@progbits
2339 addl r16 = @ltoff(@dtpmod(foo#)), gp
2340 addl r17 = @ltoff(@dtprel(foo#)), gp
2341 addl r18 = @ltoff(@tprel(foo#)), gp
2342 addl r19 = @dtprel(foo#), gp
2343 adds r21 = @dtprel(foo#), r13
2344 movl r23 = @dtprel(foo#)
2345 addl r20 = @tprel(foo#), gp
2346 adds r22 = @tprel(foo#), r13
2347 movl r24 = @tprel(foo#)'
2350 tls_as_opt=--fatal-warnings
2354 .section ".tdata","awT",@progbits
2362 addi 3,31,ld0@got@tlsgd
2364 addi 3,31,x1@got@tlsld
2367 addis 9,3,x2@dtprel@ha
2368 addi 9,9,x2@dtprel@l
2369 lwz 9,x3@got@tprel(31)
2372 addis 9,2,x2@tprel@ha
2373 addi 9,9,x2@tprel@l'
2376 tls_as_opt="-a32 --fatal-warnings"
2380 .section ".tdata","awT",@progbits
2388 addi 3,2,ld0@got@tlsgd
2394 addi 3,2,x1@got@tlsld
2400 addis 9,3,x2@dtprel@ha
2401 addi 9,9,x2@dtprel@l
2404 ld 9,x3@got@dtprel(2)
2410 tls_as_opt="-a64 --fatal-warnings"
2414 .section ".tdata","awT",@progbits
2423 l %r1,foo@GOTNTPOFF(%r12)
2424 l %r1,0(%r1):tls_load:foo
2425 bas %r14,0(%r1,%r13):tls_gdcall:foo
2426 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2429 tls_as_opt="-m31 --fatal-warnings"
2433 .section ".tdata","awT",@progbits
2441 lg %r1,foo@GOTNTPOFF(%r12)
2442 larl %r1,foo@INDNTPOFF
2443 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2444 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2447 tls_as_opt="-m64 -Aesame --fatal-warnings"
2449 sh-*-* | sh[34]-*-*)
2451 .section ".tdata","awT",@progbits
2461 tls_as_opt=--fatal-warnings
2465 sparc*-sun-solaris2.*)
2472 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2474 .section ".tdata",#alloc,#write,#tls
2477 sethi %tgd_hi22(foo), %o0
2478 add %o0, %tgd_lo10(foo), %o1
2479 add %l7, %o1, %o0, %tgd_add(foo)
2480 call __tls_get_addr, %tgd_call(foo)
2481 sethi %tldm_hi22(foo), %l1
2482 add %l1, %tldm_lo10(foo), %l2
2483 add %l7, %l2, %o0, %tldm_add(foo)
2484 call __tls_get_addr, %tldm_call(foo)
2485 sethi %tldo_hix22(foo), %l3
2486 xor %l3, %tldo_lox10(foo), %l4
2487 add %o0, %l4, %l5, %tldo_add(foo)
2488 sethi %tie_hi22(foo), %o3
2489 add %o3, %tie_lo10(foo), %o3
2490 ld [%l7 + %o3], %o2, %tie_ld(foo)
2491 add %g7, %o2, %o4, %tie_add(foo)
2492 sethi %tle_hix22(foo), %l1
2493 xor %l1, %tle_lox10(foo), %o5
2494 ld [%g7 + %o5], %o1'
2499 .section ".tdata","awT",@progbits
2502 sethi %tgd_hi22(foo), %o0
2503 add %o0, %tgd_lo10(foo), %o1
2504 add %l7, %o1, %o0, %tgd_add(foo)
2505 call __tls_get_addr, %tgd_call(foo)
2506 sethi %tldm_hi22(foo), %l1
2507 add %l1, %tldm_lo10(foo), %l2
2508 add %l7, %l2, %o0, %tldm_add(foo)
2509 call __tls_get_addr, %tldm_call(foo)
2510 sethi %tldo_hix22(foo), %l3
2511 xor %l3, %tldo_lox10(foo), %l4
2512 add %o0, %l4, %l5, %tldo_add(foo)
2513 sethi %tie_hi22(foo), %o3
2514 add %o3, %tie_lo10(foo), %o3
2515 ld [%l7 + %o3], %o2, %tie_ld(foo)
2516 add %g7, %o2, %o4, %tie_add(foo)
2517 sethi %tle_hix22(foo), %l1
2518 xor %l1, %tle_lox10(foo), %o5
2519 ld [%g7 + %o5], %o1'
2522 tls_as_opt="-32 --fatal-warnings"
2527 if test -z "$tls_first_major"; then
2528 : # If we don't have a check, assume no support.
2530 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2531 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2532 [AC_DEFINE(HAVE_AS_TLS, 1,
2533 [Define if your assembler supports thread-local storage.])])
2536 # Target-specific assembler checks.
2538 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2539 gcc_cv_ld_static_dynamic=no
2540 if test $in_tree_ld = yes ; then
2541 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2542 gcc_cv_ld_static_dynamic=yes
2544 elif test x$gcc_cv_ld != x; then
2545 # Check if linker supports -Bstatic/-Bdynamic option
2546 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2547 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2548 gcc_cv_ld_static_dynamic=yes
2551 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2552 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2553 [Define if your linker supports -Bstatic/-Bdynamic option.])
2555 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2557 if test x"$demangler_in_ld" = xyes; then
2558 AC_MSG_CHECKING(linker --demangle support)
2559 gcc_cv_ld_demangle=no
2560 if test $in_tree_ld = yes; then
2561 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2562 gcc_cv_ld_demangle=yes
2564 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2565 # Check if the GNU linker supports --demangle option
2566 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2567 gcc_cv_ld_demangle=yes
2570 if test x"$gcc_cv_ld_demangle" = xyes; then
2571 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2572 [Define if your linker supports --demangle option.])
2574 AC_MSG_RESULT($gcc_cv_ld_demangle)
2578 # All TARGET_ABI_OSF targets.
2579 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2580 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2581 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2584 extbl $3, $2, $3 !lituse_bytoff!1
2585 ldq $2, a($29) !literal!1
2586 ldq $4, b($29) !literal!2
2587 ldq_u $3, 0($2) !lituse_base!1
2588 ldq $27, f($29) !literal!5
2589 jsr $26, ($27), f !lituse_jsr!5
2590 ldah $29, 0($26) !gpdisp!3
2591 lda $0, c($29) !gprel
2592 ldah $1, d($29) !gprelhigh
2593 lda $1, d($1) !gprellow
2594 lda $29, 0($29) !gpdisp!3],,
2595 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2596 [Define if your assembler supports explicit relocations.])])
2597 gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
2598 gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
2601 ldq $27, a($29) !literal!1
2602 jsr $26, ($27), a !lituse_jsrdirect!1],,
2603 [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
2604 [Define if your assembler supports the lituse_jsrdirect relocation.])])
2608 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2609 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2610 [-no-mul-bug-abort], [.text],,
2611 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2612 [Define if your assembler supports the -no-mul-bug-abort option.])])
2616 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2617 [.register %g2, #scratch],,
2618 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2619 [Define if your assembler supports .register.])])
2621 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2623 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2624 [Define if your assembler supports -relax option.])])
2626 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2627 gcc_cv_as_sparc_ua_pcrel,,
2635 .uaword %r_disp32(foo)],
2636 [if test x$gcc_cv_ld != x \
2637 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2638 gcc_cv_as_sparc_ua_pcrel=yes
2641 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2642 [Define if your assembler and linker support unaligned PC relative relocs.])
2644 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2645 gcc_cv_as_sparc_ua_pcrel_hidden,,
2650 .uaword %r_disp32(foo)
2651 .byte 0x32, 0x33, 0x34
2656 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2657 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2658 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2659 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2660 if $gcc_cv_objdump -R conftest 2> /dev/null \
2661 | grep 'DISP32' > /dev/null 2>&1; then
2664 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2668 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2669 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2670 ]) # unaligned pcrel relocs
2672 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2673 gcc_cv_as_sparc_offsetable_lo10,,
2676 or %g1, %lo(ab) + 12, %g1
2677 or %g1, %lo(ab + 12), %g1],
2678 [if test x$gcc_cv_objdump != x \
2679 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2680 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2681 gcc_cv_as_sparc_offsetable_lo10=yes
2683 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2684 [Define if your assembler supports offsetable %lo().])])
2688 i[34567]86-*-* | x86_64-*-*)
2691 cygwin* | pe | mingw32*)
2692 # Used for DWARF 2 in PE
2693 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2694 gcc_cv_as_ix86_pe_secrel32,
2700 [if test x$gcc_cv_ld != x \
2701 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2702 gcc_cv_as_ix86_pe_secrel32=yes
2705 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2706 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2710 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2711 gcc_cv_as_ix86_filds_fists,
2712 [2,9,0],, [filds mem; fists mem],,
2713 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2714 [Define if your assembler uses the new HImode fild and fist notation.])])
2716 gcc_GAS_CHECK_FEATURE([cmov syntax],
2717 gcc_cv_as_ix86_cmov_sun_syntax,,,
2718 [cmovl.l %edx, %eax],,
2719 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2720 [Define if your assembler supports the Sun syntax for cmov.])])
2722 # This one is used unconditionally by i386.[ch]; it is to be defined
2723 # to 1 if the feature is present, 0 otherwise.
2724 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2725 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2731 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2732 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2733 [Define true if the assembler supports '.long foo@GOTOFF'.])
2737 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2738 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2740 addl r15 = @ltoffx(x#), gp
2742 ld8.mov r16 = [[r15]], x#],,
2743 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2744 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2750 *-*-aix*) conftest_s=' .csect .text[[PR]]
2753 gcc_GAS_CHECK_FEATURE([.machine directive support],
2754 gcc_cv_as_machine_directive,,,
2755 [ .machine ppc7400])
2756 if test x$gcc_cv_as_machine_directive != xyes; then
2757 echo "*** This target requires an assembler supporting \".machine\"" >&2
2758 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2759 test x$build = x$target && exit 1
2763 *) conftest_s=' .machine power4
2768 gcc_GAS_CHECK_FEATURE([mfcr field support],
2769 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2771 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2772 [Define if your assembler supports mfcr field.])])
2776 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2777 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2778 [ lw $4,%gp_rel(foo)($4)],,
2779 [if test x$target_cpu_default = x
2780 then target_cpu_default=MASK_EXPLICIT_RELOCS
2781 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2784 if test x$gas_flag = xyes \
2785 || test x"$host" != x"$build" \
2786 || test ! -x "$gcc_cv_as" \
2787 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2790 echo "*** This configuration requires the GNU assembler" >&2
2795 # ??? Not all targets support dwarf2 debug_line, even within a version
2796 # of gas. Moreover, we need to emit a valid instruction to trigger any
2797 # info to the output file. So, as supported targets are added to gas 2.11,
2798 # add some instruction here to (also) show we expect this might work.
2799 # ??? Once 2.11 is released, probably need to add first known working
2800 # version to the per-target configury.
2802 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2803 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2804 | xstormy16*-*-* | cris-*-* | xtensa-*-* | bfin-*-*)
2807 ia64*-*-* | s390*-*-*)
2814 if test x"$insn" != x; then
2816 .file 1 \"conftest.s\"
2819 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2820 gcc_cv_as_dwarf2_debug_line,
2821 [elf,2,11,0],, [$conftest_s],
2822 [if test x$gcc_cv_objdump != x \
2823 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
2824 | grep debug_line > /dev/null 2>&1; then
2825 gcc_cv_as_dwarf2_debug_line=yes
2828 # The .debug_line file table must be in the exact order that
2829 # we specified the files, since these indices are also used
2830 # by DW_AT_decl_file. Approximate this test by testing if
2831 # the assembler bitches if the same index is assigned twice.
2832 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2833 gcc_cv_as_dwarf2_file_buggy,,,
2837 if test $gcc_cv_as_dwarf2_debug_line = yes \
2838 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2839 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2840 [Define if your assembler supports dwarf2 .file/.loc directives,
2841 and preserves file table indices exactly as given.])
2844 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2845 gcc_cv_as_gdwarf2_flag,
2846 [elf,2,11,0], [--gdwarf2], [$insn],,
2847 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2848 [Define if your assembler supports the --gdwarf2 option.])])
2850 gcc_GAS_CHECK_FEATURE([--gstabs option],
2851 gcc_cv_as_gstabs_flag,
2852 [elf,2,11,0], [--gstabs], [$insn],
2853 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2854 # and warns about it, but still exits successfully. So check for
2856 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2858 else gcc_cv_as_gstabs_flag=yes
2860 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2861 [Define if your assembler supports the --gstabs option.])])
2864 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2865 gcc_cv_ld_ro_rw_mix=unknown
2866 if test $in_tree_ld = yes ; then
2867 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2868 && test $in_tree_ld_is_elf = yes; then
2869 gcc_cv_ld_ro_rw_mix=read-write
2871 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2872 echo '.section myfoosect, "a"' > conftest1.s
2873 echo '.section myfoosect, "aw"' > conftest2.s
2874 echo '.byte 1' >> conftest2.s
2875 echo '.section myfoosect, "a"' > conftest3.s
2876 echo '.byte 0' >> conftest3.s
2877 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2878 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2879 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2880 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2881 conftest2.o conftest3.o > /dev/null 2>&1; then
2882 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2883 | sed -e '/myfoosect/!d' -e N`
2884 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2885 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2886 gcc_cv_ld_ro_rw_mix=read-only
2888 gcc_cv_ld_ro_rw_mix=read-write
2893 rm -f conftest.* conftest[123].*
2896 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2897 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2898 [Define if your linker links a mix of read-only
2899 and read-write sections into a read-write section.])
2901 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2903 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2904 gcc_cv_ld_eh_frame_hdr=no
2905 if test $in_tree_ld = yes ; then
2906 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2907 && test $in_tree_ld_is_elf = yes; then
2908 gcc_cv_ld_eh_frame_hdr=yes
2910 elif test x$gcc_cv_ld != x; then
2911 # Check if linker supports --eh-frame-hdr option
2912 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2913 gcc_cv_ld_eh_frame_hdr=yes
2916 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2917 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2918 [Define if your linker supports --eh-frame-hdr option.])
2920 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2922 AC_MSG_CHECKING(linker position independent executable support)
2924 if test $in_tree_ld = yes ; then
2925 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2926 && test $in_tree_ld_is_elf = yes; then
2929 elif test x$gcc_cv_ld != x; then
2930 # Check if linker supports -pie option
2931 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2935 if test x"$gcc_cv_ld_pie" = xyes; then
2936 AC_DEFINE(HAVE_LD_PIE, 1,
2937 [Define if your linker supports -pie option.])
2939 AC_MSG_RESULT($gcc_cv_ld_pie)
2945 AC_CACHE_CHECK(linker --as-needed support,
2946 gcc_cv_ld_as_needed,
2947 [gcc_cv_ld_as_needed=no
2948 if test $in_tree_ld = yes ; then
2949 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2950 && test $in_tree_ld_is_elf = yes; then
2951 gcc_cv_ld_as_needed=yes
2953 elif test x$gcc_cv_ld != x; then
2954 # Check if linker supports --as-needed and --no-as-needed options
2955 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2956 gcc_cv_ld_as_needed=yes
2960 if test x"$gcc_cv_ld_as_needed" = xyes; then
2961 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2962 [Define if your linker supports --as-needed and --no-as-needed options.])
2965 case "$target:$tm_file" in
2966 powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
2967 AC_CACHE_CHECK(linker support for omitting dot symbols,
2968 gcc_cv_ld_no_dot_syms,
2969 [gcc_cv_ld_no_dot_syms=no
2970 if test $in_tree_ld = yes ; then
2971 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
2972 gcc_cv_ld_no_dot_syms=yes
2974 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
2975 cat > conftest1.s <<EOF
2979 cat > conftest2.s <<EOF
2980 .section ".opd","aw"
2985 .quad .LEfoo,.TOC.@tocbase,0
2991 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
2992 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
2993 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
2994 gcc_cv_ld_no_dot_syms=yes
2996 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
2999 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3000 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3001 [Define if your PowerPC64 linker only needs function descriptor syms.])
3006 if test x$with_sysroot = x && test x$host = x$target \
3007 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
3008 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3009 [Define to PREFIX/include if cpp should also search that directory.])
3012 # Find out what GC implementation we want, or may, use.
3014 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3021 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3026 echo "Using $GGC for garbage collection."
3028 # Use the system's zlib library.
3030 zlibinc="-I\$(srcdir)/../zlib"
3031 AC_ARG_WITH(system-zlib,
3032 [ --with-system-zlib use installed libz],
3039 dnl Very limited version of automake's enable-maintainer-mode
3041 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3042 dnl maintainer-mode is disabled by default
3043 AC_ARG_ENABLE(maintainer-mode,
3044 [ --enable-maintainer-mode
3045 enable make rules and dependencies not useful
3046 (and sometimes confusing) to the casual installer],
3047 maintainer_mode=$enableval,
3050 AC_MSG_RESULT($maintainer_mode)
3052 if test "$maintainer_mode" = "yes"; then
3063 # Make empty files to contain the specs and options for each language.
3064 # Then add #include lines to for a compiler that has specs and/or options.
3069 for subdir in . $subdirs
3071 if test -f $srcdir/$subdir/lang.opt; then
3072 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3074 if test -f $srcdir/$subdir/lang-specs.h; then
3075 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3077 if test -f $srcdir/$subdir/$subdir-tree.def; then
3078 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3082 # These (without "all_") are set in each config-lang.in.
3083 # `language' must be a single word so is spelled singularly.
3088 all_outputs='Makefile gccbug mklibgcc libada-mk'
3089 # List of language makefile fragments.
3091 # List of language subdirectory makefiles. Deprecated.
3093 # Files for gengtype
3094 all_gtfiles="$target_gtfiles"
3095 # Files for gengtype with language
3096 all_gtfiles_files_langs=
3097 all_gtfiles_files_files=
3099 # Add the language fragments.
3100 # Languages are added via two mechanisms. Some information must be
3101 # recorded in makefile variables, these are defined in config-lang.in.
3102 # We accumulate them and plug them into the main Makefile.
3103 # The other mechanism is a set of hooks for each of the main targets
3104 # like `clean', `install', etc.
3106 language_hooks="Make-hooks"
3116 . ${srcdir}/$s/config-lang.in
3117 if test "x$language" = x
3119 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3122 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3123 if test -f ${srcdir}/$s/Makefile.in
3124 then all_lang_makefiles="$s/Makefile"
3126 all_languages="$all_languages $language"
3127 if test "x$boot_language" = xyes
3129 all_boot_languages="$all_boot_languages $language"
3131 all_compilers="$all_compilers $compilers"
3132 all_stagestuff="$all_stagestuff $stagestuff"
3133 all_outputs="$all_outputs $outputs"
3134 all_gtfiles="$all_gtfiles $gtfiles"
3137 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3138 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3142 # Pick up gtfiles for c
3145 . ${srcdir}/c-config-lang.in
3146 all_gtfiles="$all_gtfiles $gtfiles"
3149 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3150 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3154 for language in $all_languages
3156 check_languages="$check_languages check-$language"
3159 # We link each language in with a set of hooks, reached indirectly via
3164 target_list="all.build all.cross start.encap rest.encap tags \
3165 install-normal install-common install-man \
3166 uninstall info man srcextra srcman srcinfo \
3167 mostlyclean clean distclean maintainer-clean \
3168 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3169 for t in $target_list
3172 for lang in $all_languages
3176 echo "lang.$t: $x" >> Make-hooks
3185 echo "dir ." > .gdbinit
3186 echo "dir ${srcdir}" >> .gdbinit
3187 if test x$gdb_needs_out_file_path = xyes
3189 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3191 if test "x$subdirs" != x; then
3194 echo "dir ${srcdir}/$s" >> .gdbinit
3197 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3199 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3200 # absolute path for gcc_tooldir based on inserting the number of up-directory
3201 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3202 # $(libsubdir)/@(unlibsubdir) based path.
3203 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3204 # make and thus we'd get different behavior depending on where we built the
3206 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3207 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3209 changequote(<<, >>)dnl
3210 # An explanation of the sed strings:
3211 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3212 # -e 's|/$||' match a trailing forward slash and eliminates it
3213 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3214 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3216 # (*) Note this pattern overwrites the first character of the string
3217 # with a forward slash if one is not already present. This is not a
3218 # problem because the exact names of the sub-directories concerned is
3219 # unimportant, just the number of them matters.
3221 # The practical upshot of these patterns is like this:
3223 # prefix exec_prefix result
3224 # ------ ----------- ------
3226 # /foo/ /foo/bar ../
3227 # /foo /foo/bar/ ../
3228 # /foo/ /foo/bar/ ../
3229 # /foo /foo/bar/ugg ../../
3232 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3233 changequote([, ])dnl
3235 AC_SUBST(gcc_tooldir)
3238 # Find a directory in which to install a shared libgcc.
3240 AC_ARG_ENABLE(version-specific-runtime-libs,
3241 [ --enable-version-specific-runtime-libs
3242 specify that runtime libraries should be
3243 installed in a compiler-specific directory])
3245 AC_ARG_WITH(slibdir,
3246 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3247 slibdir="$with_slibdir",
3248 if test "${enable_version_specific_runtime_libs+set}" = set; then
3249 slibdir='$(libsubdir)'
3250 elif test "$host" != "$target"; then
3251 slibdir='$(build_tooldir)/lib'
3257 objdir=`${PWDCMD-pwd}`
3260 # Substitute configuration variables
3263 AC_SUBST(all_boot_languages)
3264 AC_SUBST(all_compilers)
3265 AC_SUBST(all_gtfiles)
3266 AC_SUBST(all_gtfiles_files_langs)
3267 AC_SUBST(all_gtfiles_files_files)
3268 AC_SUBST(all_lang_makefrags)
3269 AC_SUBST(all_lang_makefiles)
3270 AC_SUBST(all_languages)
3271 AC_SUBST(all_stagestuff)
3272 AC_SUBST(build_exeext)
3273 AC_SUBST(build_install_headers_dir)
3274 AC_SUBST(build_xm_file_list)
3275 AC_SUBST(build_xm_include_list)
3276 AC_SUBST(build_xm_defines)
3277 AC_SUBST(check_languages)
3278 AC_SUBST(cc_set_by_configure)
3279 AC_SUBST(quoted_cc_set_by_configure)
3280 AC_SUBST(cpp_install_dir)
3281 AC_SUBST(xmake_file)
3282 AC_SUBST(tmake_file)
3283 AC_SUBST(extra_gcc_objs)
3284 AC_SUBST(extra_headers_list)
3285 AC_SUBST(extra_objs)
3286 AC_SUBST(extra_parts)
3287 AC_SUBST(extra_passes)
3288 AC_SUBST(extra_programs)
3289 AC_SUBST(float_h_file)
3290 AC_SUBST(gcc_config_arguments)
3291 AC_SUBST(gcc_gxx_include_dir)
3292 AC_SUBST(libstdcxx_incdir)
3293 AC_SUBST(host_exeext)
3294 AC_SUBST(host_xm_file_list)
3295 AC_SUBST(host_xm_include_list)
3296 AC_SUBST(host_xm_defines)
3297 AC_SUBST(out_host_hook_obj)
3299 AC_SUBST(lang_opt_files)
3300 AC_SUBST(lang_specs_files)
3301 AC_SUBST(lang_tree_files)
3302 AC_SUBST(local_prefix)
3304 AC_SUBST(objc_boehm_gc)
3306 AC_SUBST(out_object_file)
3307 AC_SUBST(stage_prefix_set_by_configure)
3308 AC_SUBST(quoted_stage_prefix_set_by_configure)
3309 AC_SUBST(thread_file)
3310 AC_SUBST(tm_file_list)
3311 AC_SUBST(tm_include_list)
3312 AC_SUBST(tm_defines)
3313 AC_SUBST(tm_p_file_list)
3314 AC_SUBST(tm_p_include_list)
3315 AC_SUBST(xm_file_list)
3316 AC_SUBST(xm_include_list)
3317 AC_SUBST(xm_defines)
3318 AC_SUBST(c_target_objs)
3319 AC_SUBST(cxx_target_objs)
3320 AC_SUBST(target_cpu_default)
3322 AC_SUBST_FILE(language_hooks)
3324 TL_AC_GNU_MAKE_GCC_LIB_PATH
3327 if test x${build} = x${host} ; then
3328 if test x${host} = x${target} ; then
3329 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3331 echo "Links are now set up to build a cross-compiler" 1>&2
3332 echo " from ${host} to ${target}." 1>&2
3335 if test x${host} = x${target} ; then
3336 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3337 echo " for ${target}." 1>&2
3339 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3340 echo " from ${host} to ${target}." 1>&2
3344 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3345 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3347 # Configure the subdirectories
3348 # AC_CONFIG_SUBDIRS($subdirs)
3350 # Create the Makefile
3351 # and configure language subdirectories
3352 AC_CONFIG_FILES($all_outputs)
3354 AC_CONFIG_COMMANDS([default],
3356 case ${CONFIG_HEADERS} in
3357 *auto-host.h:config.in*)
3360 # Make sure all the subdirs exist.
3361 for d in $subdirs doc build
3363 test -d $d || mkdir $d
3365 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3366 # bootstrapping and the installation procedure can still use
3367 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3368 # FLAGS_TO_PASS has been modified to solve the problem there.
3369 # This is virtually a duplicate of what happens in configure.lang; we do
3370 # an extra check to make sure this only happens if ln -s can be used.
3373 for d in ${subdirs} ; do
3374 STARTDIR=`${PWDCMD-pwd}`
3376 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3379 $LN_S ../$t $t 2>/dev/null
3386 [subdirs='$subdirs'])