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 # Determine the host, build, and target systems
38 # Determine the noncanonical target name, for directory use.
39 ACX_NONCANONICAL_TARGET
41 # Determine the target- and build-specific subdirectories
44 # Set program_transform_name
47 # Check for bogus environment variables.
48 # Test if LIBRARY_PATH contains the notation for the current directory
49 # since this would lead to problems installing/building glibc.
50 # LIBRARY_PATH contains the current directory if one of the following
52 # - one of the terminals (":" and ";") is the first or last sign
53 # - two terminals occur directly after each other
54 # - the path contains an element with a dot in it
55 AC_MSG_CHECKING(LIBRARY_PATH variable)
57 case ${LIBRARY_PATH} in
58 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
59 library_path_setting="contains current directory"
62 library_path_setting="ok"
66 AC_MSG_RESULT($library_path_setting)
67 if test "$library_path_setting" != "ok"; then
69 *** LIBRARY_PATH shouldn't contain the current directory when
70 *** building gcc. Please change the environment variable
71 *** and run configure again.])
74 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
75 # since this would lead to problems installing/building glibc.
76 # GCC_EXEC_PREFIX contains the current directory if one of the following
78 # - one of the terminals (":" and ";") is the first or last sign
79 # - two terminals occur directly after each other
80 # - the path contains an element with a dot in it
81 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
83 case ${GCC_EXEC_PREFIX} in
84 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
85 gcc_exec_prefix_setting="contains current directory"
88 gcc_exec_prefix_setting="ok"
92 AC_MSG_RESULT($gcc_exec_prefix_setting)
93 if test "$gcc_exec_prefix_setting" != "ok"; then
95 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
96 *** building gcc. Please change the environment variable
97 *** and run configure again.])
104 # Specify the local prefix
106 AC_ARG_WITH(local-prefix,
107 [ --with-local-prefix=DIR specifies directory to put local include],
108 [case "${withval}" in
109 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
111 *) local_prefix=$with_local_prefix ;;
114 # Default local prefix if it is empty
115 if test x$local_prefix = x; then
116 local_prefix=/usr/local
119 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
120 # passed in by the toplevel make and thus we'd get different behavior
121 # depending on where we built the sources.
123 # Specify the g++ header file directory
124 AC_ARG_WITH(gxx-include-dir,
125 [ --with-gxx-include-dir=DIR
126 specifies directory to put g++ header files],
127 [case "${withval}" in
128 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
130 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
133 if test x${gcc_gxx_include_dir} = x; then
134 if test x${enable_version_specific_runtime_libs} = xyes; then
135 gcc_gxx_include_dir='${libsubdir}/include/c++'
137 libstdcxx_incdir='c++/$(version)'
138 changequote(<<, >>)dnl
139 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
144 AC_ARG_WITH(cpp_install_dir,
145 [ --with-cpp-install-dir=DIR
146 install the user visible C preprocessor in DIR
147 (relative to PREFIX) as well as PREFIX/bin],
148 [if test x$withval = xyes; then
149 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
150 elif test x$withval != xno; then
151 cpp_install_dir=$withval
154 # We would like to our source tree to be readonly. However when releases or
155 # pre-releases are generated, the flex/bison generated files as well as the
156 # various formats of manuals need to be included along with the rest of the
157 # sources. Therefore we have --enable-generated-files-in-srcdir to do
160 AC_MSG_CHECKING([whether to place generated files in the source directory])
161 dnl generated-files-in-srcdir is disabled by default
162 AC_ARG_ENABLE(generated-files-in-srcdir,
163 [ --enable-generated-files-in-srcdir
164 put copies of generated files in source dir
165 intended for creating source tarballs for users
166 without texinfo bison or flex.],
167 generated_files_in_srcdir=$enableval,
168 generated_files_in_srcdir=no)
170 AC_MSG_RESULT($generated_files_in_srcdir)
172 if test "$generated_files_in_srcdir" = "yes"; then
179 # -------------------
180 # Find default linker
181 # -------------------
185 [ --with-gnu-ld arrange to work with GNU ld.],
186 gnu_ld_flag="$with_gnu_ld",
189 # With pre-defined ld
191 [ --with-ld arrange to use the specified ld (full pathname)],
192 DEFAULT_LINKER="$with_ld")
193 if test x"${DEFAULT_LINKER+set}" = x"set"; then
194 if test ! -x "$DEFAULT_LINKER"; then
195 AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
196 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
199 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
200 [Define to enable the use of a default linker.])
203 AC_MSG_CHECKING([whether a default linker was specified])
204 if test x"${DEFAULT_LINKER+set}" = x"set"; then
205 if test x"$gnu_ld_flag" = x"no"; then
206 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
208 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
214 # With demangler in GNU ld
215 AC_ARG_WITH(demangler-in-ld,
216 [ --with-demangler-in-ld try to use demangler in GNU ld.],
217 demangler_in_ld="$with_demangler_in_ld",
220 # ----------------------
221 # Find default assembler
222 # ----------------------
226 [ --with-gnu-as arrange to work with GNU as],
227 gas_flag="$with_gnu_as",
231 [ --with-as arrange to use the specified as (full pathname)],
232 DEFAULT_ASSEMBLER="$with_as")
233 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
234 if test ! -x "$DEFAULT_ASSEMBLER"; then
235 AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
236 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
239 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
240 [Define to enable the use of a default assembler.])
243 AC_MSG_CHECKING([whether a default assembler was specified])
244 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
245 if test x"$gas_flag" = x"no"; then
246 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
248 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
258 # If a non-executable a.out is present (e.g. created by GNU as above even if
259 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
260 # file, even when creating an executable, so an execution test fails.
261 # Remove possible default executable files to avoid this.
263 # FIXME: This really belongs into AC_PROG_CC and can be removed once
264 # Autoconf includes it.
265 rm -f a.out a.exe b.out
267 # Find the native compiler
270 # autoconf is lame and doesn't give us any substitution variable for this.
271 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
272 NO_MINUS_C_MINUS_O=yes
274 OUTPUT_OPTION='-o $@'
276 AC_SUBST(NO_MINUS_C_MINUS_O)
277 AC_SUBST(OUTPUT_OPTION)
279 # -------------------------
280 # Check C compiler features
281 # -------------------------
288 # sizeof(char) is 1 by definition.
289 AC_CHECK_SIZEOF(void *)
290 AC_CHECK_SIZEOF(short)
292 AC_CHECK_SIZEOF(long)
293 if test $ac_cv_c_long_long = yes; then
294 AC_CHECK_SIZEOF(long long)
296 if test $ac_cv_c___int64 = yes; then
297 AC_CHECK_SIZEOF(__int64)
300 # ---------------------
301 # Warnings and checking
302 # ---------------------
304 # Check $CC warning features (if it's GCC).
305 # We want to use -pedantic, but we don't want warnings about
308 # So, we only use -pedantic if we can disable those warnings.
311 [whether ${CC} accepts -Wno-long-long],
312 [ac_cv_prog_cc_w_no_long_long],
313 [save_CFLAGS="$CFLAGS"
314 CFLAGS="-Wno-long-long"
315 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
316 [ac_cv_prog_cc_w_no_long_long=yes],
317 [ac_cv_prog_cc_w_no_long_long=no])
318 CFLAGS="$save_CFLAGS"
322 [whether ${CC} accepts -Wno-variadic-macros],
323 [ac_cv_prog_cc_w_no_variadic_macros],
324 [save_CFLAGS="$CFLAGS"
325 CFLAGS="-Wno-variadic-macros"
326 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
327 [ac_cv_prog_cc_w_no_variadic_macros=yes],
328 [ac_cv_prog_cc_w_no_variadic_macros=no])
329 CFLAGS="$save_CFLAGS"
333 if test $ac_cv_prog_cc_w_no_long_long = yes \
334 && test $ac_cv_prog_cc_w_no_variadic_macros = yes ; then
335 strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros"
337 AC_SUBST(strict1_warn)
339 # Add -Wold-style-definition if it's accepted
341 [whether ${CC} accepts -Wold-style-definition],
342 [ac_cv_prog_cc_w_old_style_definition],
343 [save_CFLAGS="$CFLAGS"
344 CFLAGS="-Wold-style-definition"
345 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
346 [ac_cv_prog_cc_w_old_style_definition=yes],
347 [ac_cv_prog_cc_w_old_style_definition=no])
348 CFLAGS="$save_CFLAGS"
350 if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
351 strict1_warn="${strict1_warn} -Wold-style-definition"
354 # Enable -Werror, period.
355 AC_ARG_ENABLE(werror_always,
356 [ --enable-werror-always enable -Werror always], [],
357 [enable_werror_always=no])
358 if test x${enable_werror_always} = xyes ; then
359 strict1_warn="${strict1_warn} -Werror"
363 # If the native compiler is GCC, we can enable warnings even in stage1.
364 # That's useful for people building cross-compilers, or just running a
367 if test "x$GCC" = "xyes"; then
368 warn_cflags='$(GCC_WARN_CFLAGS)'
370 AC_SUBST(warn_cflags)
372 # Enable -Werror in bootstrap stage2 and later.
374 if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then
377 AC_ARG_ENABLE(werror,
378 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
379 [if test x$is_release = x ; then
380 # Default to "yes" on development branches.
383 # Default to "no" on release branches.
386 if test x$enable_werror = xyes ; then
391 # Enable expensive internal checks
392 AC_ARG_ENABLE(checking,
393 [ --enable-checking[=LIST]
394 enable expensive run-time checks. With LIST,
395 enable only specific categories of checks.
396 Categories are: assert,fold,gc,gcac,misc,
397 rtlflag,rtl,tree,valgrind,release,yes,all;],
398 [ac_checking_flags="${enableval}"],[
399 # Determine the default checks.
400 if test x$is_release = x ; then
401 ac_checking_flags=yes
403 ac_checking_flags=release
411 ac_gc_always_collect=
413 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
414 for check in $ac_checking_flags
417 yes) ac_assert_checking=1 ; ac_checking=1 ;
418 ac_tree_checking=1 ; ac_gc_checking=1 ;
419 ac_rtlflag_checking=1 ;;
420 no) ac_assert_checking= ; ac_checking= ;
421 ac_tree_checking= ; ac_rtl_checking= ;
422 ac_rtlflag_checking= ; ac_gc_checking= ;
423 ac_gc_always_collect= ; ac_fold_checking= ;;
424 all) ac_assert_checking=1 ; ac_checking=1 ;
425 ac_tree_checking=1 ; ac_rtl_checking=1 ;
426 ac_rtlflag_checking=1 ; ac_gc_checking=1 ;
427 ac_gc_always_collect=1 ; ac_fold_checking=1 ;;
428 release) ac_assert_checking=1 ;;
429 assert) ac_assert_checking=1 ;;
430 fold) ac_fold_checking=1 ;;
431 gc) ac_gc_checking=1 ;;
432 gcac) ac_gc_always_collect=1 ;;
433 misc) ac_checking=1 ;;
434 rtlflag) ac_rtlflag_checking=1 ;;
435 rtl) ac_rtl_checking=1 ;;
436 tree) ac_tree_checking=1 ;;
437 valgrind) ac_checking_valgrind=1 ;;
438 *) AC_MSG_ERROR(unknown check category $check) ;;
444 if test x$ac_checking != x ; then
445 AC_DEFINE(ENABLE_CHECKING, 1,
446 [Define if you want more run-time sanity checks. This one gets a grab
447 bag of miscellaneous but relatively cheap checks.])
448 nocommon_flag=-fno-common
450 AC_SUBST(nocommon_flag)
451 if test x$ac_assert_checking != x ; then
452 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
453 [Define if you want assertions enabled. This is a cheap check.])
455 if test x$ac_tree_checking != x ; then
456 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
457 [Define if you want all operations on trees (the basic data
458 structure of the front ends) to be checked for dynamic type safety
459 at runtime. This is moderately expensive. The tree browser debugging
460 routines will also be enabled by this option.
462 TREEBROWSER=tree-browser.o
464 AC_SUBST(TREEBROWSER)
465 if test x$ac_rtl_checking != x ; then
466 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
467 [Define if you want all operations on RTL (the basic data structure
468 of the optimizer and back end) to be checked for dynamic type safety
469 at runtime. This is quite expensive.])
471 if test x$ac_rtlflag_checking != x ; then
472 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
473 [Define if you want RTL flag accesses to be checked against the RTL
474 codes that are supported for each access macro. This is relatively
477 if test x$ac_gc_checking != x ; then
478 AC_DEFINE(ENABLE_GC_CHECKING, 1,
479 [Define if you want the garbage collector to do object poisoning and
480 other memory allocation checks. This is quite expensive.])
482 if test x$ac_gc_always_collect != x ; then
483 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
484 [Define if you want the garbage collector to operate in maximally
485 paranoid mode, validating the entire heap and collecting garbage at
486 every opportunity. This is extremely expensive.])
488 if test x$ac_fold_checking != x ; then
489 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
490 [Define if you want fold checked that it never destructs its argument.
491 This is quite expensive.])
493 valgrind_path_defines=
496 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
497 dnl # an if statement. This was the source of very frustrating bugs
498 dnl # in converting to autoconf 2.5x!
499 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
501 if test x$ac_checking_valgrind != x ; then
502 # It is certainly possible that there's valgrind but no valgrind.h.
503 # GCC relies on making annotations so we must have both.
504 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
506 [#include <valgrind/memcheck.h>
507 #ifndef VALGRIND_DISCARD
508 #error VALGRIND_DISCARD not defined
510 [gcc_cv_header_valgrind_memcheck_h=yes],
511 [gcc_cv_header_valgrind_memcheck_h=no])
512 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
513 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
515 [#include <memcheck.h>
516 #ifndef VALGRIND_DISCARD
517 #error VALGRIND_DISCARD not defined
519 [gcc_cv_header_memcheck_h=yes],
520 gcc_cv_header_memcheck_h=no)
521 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
522 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
523 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
524 if test "x$valgrind_path" = "x" \
525 || (test $have_valgrind_h = no \
526 && test $gcc_cv_header_memcheck_h = no \
527 && test $gcc_cv_header_valgrind_memcheck_h = no); then
528 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
530 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
531 valgrind_command="$valgrind_path -q"
532 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
533 [Define if you want to run subprograms and generated programs
534 through valgrind (a memory checker). This is extremely expensive.])
535 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
536 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
537 [Define if valgrind's valgrind/memcheck.h header is installed.])
539 if test $gcc_cv_header_memcheck_h = yes; then
540 AC_DEFINE(HAVE_MEMCHECK_H, 1,
541 [Define if valgrind's memcheck.h header is installed.])
544 AC_SUBST(valgrind_path_defines)
545 AC_SUBST(valgrind_command)
547 AC_ARG_ENABLE(mapped-location,
548 [ --enable-mapped-location location_t is fileline integer cookie],,
549 enable_mapped_location=no)
551 if test "$enable_mapped_location" = yes ; then
552 AC_DEFINE(USE_MAPPED_LOCATION, 1,
553 [Define if location_t is fileline integer cookie.])
556 # Enable code coverage collection
557 AC_ARG_ENABLE(coverage,
558 [ --enable-coverage[=LEVEL]
559 enable compiler's code coverage collection.
560 Use to measure compiler performance and locate
561 unused parts of the compiler. With LEVEL, specify
562 optimization. Values are opt, noopt,
564 [case "${enableval}" in
566 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
569 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
572 # a.k.a. --disable-coverage
576 AC_MSG_ERROR(unknown coverage setting $enableval)
580 AC_SUBST(coverage_flags)
582 AC_ARG_ENABLE(gather-detailed-mem-stats,
583 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
584 [enable_gather_detailed_mem_stats=no])
585 if test x$enable_gather_detailed_mem_stats = xyes ; then
586 AC_DEFINE(GATHER_STATISTICS, 1,
587 [Define to enable detailed memory allocation stats gathering.])
590 # -------------------------------
591 # Miscenalleous configure options
592 # -------------------------------
596 [ --with-stabs arrange to use stabs instead of host debug format],
600 # Determine whether or not multilibs are enabled.
601 AC_ARG_ENABLE(multilib,
602 [ --enable-multilib enable library support for multiple ABIs],
603 [], [enable_multilib=yes])
604 AC_SUBST(enable_multilib)
606 # Enable __cxa_atexit for C++.
607 AC_ARG_ENABLE(__cxa_atexit,
608 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
612 # Pass with no value to take the default
613 # Pass with a value to specify a thread package
614 AC_ARG_ENABLE(threads,
615 [ --enable-threads enable thread usage for target GCC
616 --enable-threads=LIB use LIB thread package for target GCC],,
619 AC_ARG_ENABLE(objc-gc,
620 [ --enable-objc-gc enable the use of Boehm's garbage collector with
621 the GNU Objective-C runtime],
622 if test x$enable_objc_gc = xno; then
630 [ --with-dwarf2 force the default debug format to be DWARF 2],
631 dwarf2="$with_dwarf2",
634 AC_ARG_ENABLE(shared,
635 [ --disable-shared don't provide a shared libgcc],
637 case $enable_shared in
641 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
642 for pkg in $enableval; do
643 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
650 ], [enable_shared=yes])
651 AC_SUBST(enable_shared)
654 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
656 case ${with_sysroot} in
657 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
658 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
661 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
662 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
664 if test "x$exec_prefix" = xNONE; then
665 if test "x$prefix" = xNONE; then
666 test_prefix=/usr/local
671 test_prefix=$exec_prefix
673 case ${TARGET_SYSTEM_ROOT} in
674 "${test_prefix}"|"${test_prefix}/"*|\
675 '${exec_prefix}'|'${exec_prefix}/'*)
676 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
677 TARGET_SYSTEM_ROOT_DEFINE="$t"
682 TARGET_SYSTEM_ROOT_DEFINE=
683 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
685 AC_SUBST(TARGET_SYSTEM_ROOT)
686 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
687 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
689 # Build with intermodule optimisations
690 AC_ARG_ENABLE(intermodule,
691 [ --enable-intermodule build the compiler in one step],
692 [case ${enable_intermodule} in
693 yes) onestep="-onestep";;
699 # Sanity check enable_languages in case someone does not run the toplevel
700 # configure # script.
701 AC_ARG_ENABLE(languages,
702 [ --enable-languages=LIST specify which front-ends to build],
703 [case ,${enable_languages}, in
705 # go safe -- we cannot be much sure without the toplevel
707 # analysis of which target libs are present and usable
711 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
716 enable_languages=c,${enable_languages}
719 [enable_languages=c])
722 for lang in ${srcdir}/*/config-lang.in
725 # The odd quoting in the next line works around
726 # an apparent bug in bash 1.12 on linux.
728 ${srcdir}/[*]/config-lang.in) ;;
730 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
731 if test "x$lang_alias" = x
733 echo "$lang doesn't set \$language." 1>&2
736 case ",$enable_languages," in
738 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
746 # -------------------------
747 # Checks for other programs
748 # -------------------------
752 # Find some useful tools
754 # We need awk to create options.c and options.h.
755 # Bail out if it's missing.
757 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
765 # By default, the Darwin ranlib will not treat common symbols as
766 # definitions when building the archive table of contents. Other
767 # ranlibs do that; pass an option to the Darwin ranlib that makes
768 # it behave similarly.
774 AC_SUBST(ranlib_flags)
778 # See if cmp has --ignore-initial.
779 gcc_AC_PROG_CMP_IGNORE_INITIAL
781 # See if we have the mktemp command.
782 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
784 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
786 # See if makeinfo has been installed and is modern enough
787 # that we can use it.
788 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
789 [GNU texinfo.* \([0-9][0-9.]*\)],
791 if test $gcc_cv_prog_makeinfo_modern = no; then
792 MAKEINFO="$MISSING makeinfo"
794 *** Makeinfo is missing or too old.
795 *** Info documentation will not be built.])
802 # Is pod2man recent enough to regenerate manpages?
803 AC_MSG_CHECKING([for recent Pod::Man])
804 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
806 GENERATED_MANPAGES=generated-manpages
811 AC_SUBST(GENERATED_MANPAGES)
814 dnl Don't use AC_PROG_LEX; we insist on flex.
815 dnl LEXLIB is not useful in gcc.
816 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
819 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
821 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
822 # check for build == host before using them.
825 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
826 && test -d ../binutils ; then
827 NM='$(objdir)/../binutils/nm-new'
829 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
833 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
834 && test -d ../binutils ; then
835 AR='$(objdir)/../binutils/ar'
837 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
841 # --------------------
842 # Checks for C headers
843 # --------------------
845 AC_MSG_CHECKING(for GNU C library)
846 AC_CACHE_VAL(gcc_cv_glibc,
848 [#include <features.h>],[
849 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
850 #error Not a GNU C library system
854 AC_MSG_RESULT($gcc_cv_glibc)
855 if test $gcc_cv_glibc = yes; then
856 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
859 # Need to reject headers which give warnings, so that the -Werror bootstrap
860 # works later. *sigh* This needs to come before all header checks.
867 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
868 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
869 sys/resource.h sys/param.h sys/times.h sys/stat.h \
870 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
872 # Check for thread headers.
873 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
874 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
876 # These tests can't be done till we know if we have limits.h.
884 # Stage specific cflags for build.
890 stage1_cflags="-Wa,-J"
896 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
897 # sources; use -no-cpp-precomp to get to GNU cpp.
898 # Apple's GCC has bugs in designated initializer handling, so disable
900 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
903 AC_SUBST(stage1_cflags)
905 # These libraries may be used by collect2.
906 # We may need a special search path to get them linked.
907 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
909 for libs in '' -lld -lmld \
910 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
911 '-L/usr/lib/cmplrs/cc3.11 -lmld'
914 AC_TRY_LINK_FUNC(ldopen,
915 [gcc_cv_collect2_libs="$libs"; break])
918 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
919 case $gcc_cv_collect2_libs in
921 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
923 AC_SUBST(COLLECT2_LIBS)
925 # When building Ada code on Alpha, we need exc_resume which is usually in
926 # -lexc. So test for it.
929 AC_SEARCH_LIBS(exc_resume, exc)
932 AC_SUBST(GNAT_LIBEXC)
934 # Some systems put ldexp and frexp in libm instead of libc; assume
935 # they're both in the same place. jcf-dump needs them.
938 AC_SEARCH_LIBS(ldexp, m)
943 # Use <inttypes.h> only if it exists,
944 # doesn't clash with <sys/types.h>, and declares intmax_t.
945 AC_MSG_CHECKING(for inttypes.h)
946 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
948 [#include <sys/types.h>
949 #include <inttypes.h>],
951 [gcc_cv_header_inttypes_h=yes],
952 gcc_cv_header_inttypes_h=no)])
953 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
954 if test $gcc_cv_header_inttypes_h = yes; then
955 AC_DEFINE(HAVE_INTTYPES_H, 1,
956 [Define if you have a working <inttypes.h> header file.])
959 dnl Disabled until we have a complete test for buggy enum bitfields.
960 dnl gcc_AC_C_ENUM_BF_UNSIGNED
962 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
963 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
964 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
965 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
968 if test x$ac_cv_func_mbstowcs = xyes; then
969 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
970 [ AC_TRY_RUN([#include <stdlib.h>
976 gcc_cv_func_mbstowcs_works=yes,
977 gcc_cv_func_mbstowcs_works=no,
978 gcc_cv_func_mbstowcs_works=yes)])
979 if test x$gcc_cv_func_mbstowcs_works = xyes; then
980 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
981 [Define this macro if mbstowcs does not crash when its
982 first argument is NULL.])
986 AC_CHECK_TYPE(ssize_t, int)
988 # Try to determine the array type of the second argument of getgroups
989 # for the target system (int or gid_t).
991 if test "${target}" = "${build}"; then
992 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
995 # This condition may need some tweaking. It should include all
996 # targets where the array type of the second argument of getgroups
997 # is int and the type of gid_t is not equivalent to int.
998 *-*-sunos* | *-*-ultrix*)
999 TARGET_GETGROUPS_T=int
1002 TARGET_GETGROUPS_T=gid_t
1006 AC_SUBST(TARGET_GETGROUPS_T)
1008 gcc_AC_FUNC_PRINTF_PTR
1009 gcc_AC_FUNC_MMAP_BLACKLIST
1013 # Under VMS, vfork works very differently than on Unix. The standard test
1014 # won't work, and it isn't easily adaptable. It makes more sense to
1016 ac_cv_func_vfork_works=yes
1022 # Until we have in-tree GNU iconv:
1024 AC_SUBST(LIBICONV_DEP)
1030 # We will need to find libiberty.h and ansidecl.h
1031 saved_CFLAGS="$CFLAGS"
1032 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1033 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
1034 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
1035 fprintf_unlocked strstr errno snprintf vasprintf \
1036 malloc realloc calloc free basename getopt clock getpagesize, , ,[
1037 #include "ansidecl.h"
1038 #include "system.h"])
1040 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1041 #include "ansidecl.h"
1043 #ifdef HAVE_SYS_RESOURCE_H
1044 #include <sys/resource.h>
1049 #include "ansidecl.h"
1051 #ifdef HAVE_SYS_RESOURCE_H
1052 #include <sys/resource.h>
1054 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
1055 [Define to \`long' if <sys/resource.h> doesn't define.])])
1057 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1058 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1059 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1060 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1061 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1062 #include "ansidecl.h"
1071 gcc_AC_CHECK_DECLS(times, , ,[
1072 #include "ansidecl.h"
1074 #ifdef HAVE_SYS_TIMES_H
1075 #include <sys/times.h>
1079 # More time-related stuff.
1080 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1082 #include "ansidecl.h"
1084 #ifdef HAVE_SYS_TIMES_H
1085 #include <sys/times.h>
1087 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
1088 if test $ac_cv_struct_tms = yes; then
1089 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1090 [Define if <sys/times.h> defines struct tms.])
1093 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1094 # revisit after autoconf 2.50.
1095 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1097 #include "ansidecl.h"
1099 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
1100 if test $gcc_cv_type_clock_t = yes; then
1101 AC_DEFINE(HAVE_CLOCK_T, 1,
1102 [Define if <time.h> defines clock_t.])
1105 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1106 CFLAGS="$saved_CFLAGS"
1108 gcc_AC_INITFINI_ARRAY
1110 # mkdir takes a single argument on some systems.
1111 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1119 # With Setjmp/Longjmp based exception handling.
1120 AC_ARG_ENABLE(sjlj-exceptions,
1121 [ --enable-sjlj-exceptions
1122 arrange to use setjmp/longjmp exception handling],
1123 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1124 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1125 [Define 0/1 to force the choice for exception handling model.])])
1127 # For platforms with the unwind ABI which includes an unwind library,
1128 # libunwind, we can choose to use the system libunwind.
1129 AC_ARG_WITH(system-libunwind,
1130 [ --with-system-libunwind use installed libunwind])
1132 # --------------------------------------------------------
1133 # Build, host, and target specific configuration fragments
1134 # --------------------------------------------------------
1136 # Collect build-machine-specific information.
1137 . ${srcdir}/config.build
1139 # Collect host-machine-specific information.
1140 . ${srcdir}/config.host
1144 # Collect target-machine-specific information.
1145 . ${srcdir}/config.gcc
1147 extra_objs="${host_extra_objs} ${extra_objs}"
1148 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1150 # Default the target-machine variables that were not explicitly set.
1151 if test x"$tm_file" = x
1152 then tm_file=$cpu_type/$cpu_type.h; fi
1154 if test x"$extra_headers" = x
1155 then extra_headers=; fi
1157 if test x$md_file = x
1158 then md_file=$cpu_type/$cpu_type.md; fi
1160 if test x$out_file = x
1161 then out_file=$cpu_type/$cpu_type.c; fi
1163 if test x"$tmake_file" = x
1164 then tmake_file=$cpu_type/t-$cpu_type
1167 if test x"$dwarf2" = xyes
1168 then tm_file="$tm_file tm-dwarf2.h"
1171 # Say what files are being used for the output code and MD file.
1172 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1173 echo "Using \`$srcdir/config/$md_file' as machine description file."
1175 # If any of the xm_file variables contain nonexistent files, warn
1176 # about them and drop them.
1179 for x in $build_xm_file; do
1180 if test -f $srcdir/config/$x
1182 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1188 for x in $host_xm_file; do
1189 if test -f $srcdir/config/$x
1191 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1197 for x in $xm_file; do
1198 if test -f $srcdir/config/$x
1200 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1206 for f in $tm_file; do
1209 if test $count = ax; then
1210 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1212 echo "Using the following target machine macro files:"
1213 for f in $tm_file; do
1214 echo " $srcdir/config/$f"
1218 if test x$need_64bit_hwint = xyes; then
1219 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1220 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1223 if test x$use_long_long_for_widest_fast_int = xyes; then
1224 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1225 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1226 efficiently supported by the host hardware.])
1230 for f in $host_xm_file; do
1233 if test $count = a; then
1235 elif test $count = ax; then
1236 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1238 echo "Using the following host machine macro files:"
1239 for f in $host_xm_file; do
1240 echo " $srcdir/config/$f"
1243 echo "Using ${out_host_hook_obj} for host machine hooks."
1245 if test "$host_xm_file" != "$build_xm_file"; then
1247 for f in $build_xm_file; do
1250 if test $count = a; then
1252 elif test $count = ax; then
1253 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1255 echo "Using the following build machine macro files:"
1256 for f in $build_xm_file; do
1257 echo " $srcdir/config/$f"
1266 # Check if a valid thread package
1267 case ${enable_threads} in
1270 target_thread_file='single'
1274 target_thread_file='single'
1276 aix | dce | gnat | irix | posix | posix95 | rtems | \
1277 single | solaris | vxworks | win32 )
1278 target_thread_file=${enable_threads}
1281 echo "${enable_threads} is an unknown thread package" 1>&2
1286 if test x${thread_file} = x; then
1287 # No thread file set by target-specific clauses in config.gcc,
1288 # so use file chosen by default logic above
1289 thread_file=${target_thread_file}
1292 # Make gthr-default.h if we have a thread file.
1294 if test $thread_file != single; then
1295 rm -f gthr-default.h
1296 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1297 gthread_flags=-DHAVE_GTHR_DEFAULT
1299 AC_SUBST(gthread_flags)
1306 if test x$enable___cxa_atexit = xyes || \
1307 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1308 if test x$host = x$target; then
1309 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1310 [echo "__cxa_atexit can't be enabled on this target"])
1312 # We can't check for __cxa_atexit when building a cross, so assume
1316 if test x$use_cxa_atexit = xyes; then
1317 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1318 [Define if you want to use __cxa_atexit, rather than atexit, to
1319 register C++ destructors for local statics and global objects.
1320 This is essential for fully standards-compliant handling of
1321 destructors, but requires __cxa_atexit in libc.])
1325 # Look for a file containing extra machine modes.
1326 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1327 extra_modes_file='$(srcdir)'/config/${extra_modes}
1328 AC_SUBST(extra_modes_file)
1329 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1330 [Define to the name of a file containing a list of extra machine modes
1331 for this architecture.])
1334 # Convert extra_options into a form suitable for Makefile use.
1336 for f in $extra_options; do
1337 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1339 AC_SUBST(extra_opt_files)
1341 # auto-host.h is the file containing items generated by autoconf and is
1342 # the first file included by config.h.
1343 # If host=build, it is correct to have bconfig include auto-host.h
1344 # as well. If host!=build, we are in error and need to do more
1345 # work to find out the build config parameters.
1346 if test x$host = x$build
1348 build_auto=auto-host.h
1350 # We create a subdir, then run autoconf in the subdir.
1351 # To prevent recursion we set host and build for the new
1352 # invocation of configure to the build for this invocation
1359 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1360 *) realsrcdir=../${srcdir};;
1362 saved_CFLAGS="${CFLAGS}"
1363 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1364 ${realsrcdir}/configure \
1365 --enable-languages=${enable_languages-all} \
1366 --target=$target_alias --host=$build_alias --build=$build_alias
1367 CFLAGS="${saved_CFLAGS}"
1369 # We just finished tests for the build machine, so rename
1370 # the file auto-build.h in the gcc directory.
1371 mv auto-host.h ../auto-build.h
1374 build_auto=auto-build.h
1376 AC_SUBST(build_subdir)
1378 tm_file="${tm_file} defaults.h"
1379 tm_p_file="${tm_p_file} tm-preds.h"
1380 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1381 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1382 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1383 # put this back in temporarily.
1384 xm_file="ansidecl.h ${xm_file}"
1391 # Compile in configure arguments.
1392 if test -f configargs.h ; then
1393 # Being re-configured.
1394 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1395 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1397 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1400 # Double all backslashes and backslash all quotes to turn
1401 # gcc_config_arguments into a C string.
1402 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1403 $gcc_config_arguments
1405 gcc_config_arguments_str=`cat conftest.out`
1408 cat > configargs.h <<EOF
1409 /* Generated automatically. */
1410 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1411 static const char thread_model[] = "$thread_file";
1413 static const struct {
1414 const char *name, *value;
1415 } configure_default_options[] = $configure_default_options;
1419 # Internationalization
1420 ZW_GNU_GETTEXT_SISTER_DIR
1422 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1423 # -liconv on the link line twice.
1424 case "$LIBINTL" in *$LIBICONV*)
1428 # Windows32 Registry support for specifying GCC installation paths.
1429 AC_ARG_ENABLE(win32-registry,
1430 [ --disable-win32-registry
1431 disable lookup of installation paths in the
1432 Registry on Windows hosts
1433 --enable-win32-registry enable registry lookup (default)
1434 --enable-win32-registry=KEY
1435 use KEY instead of GCC version as the last portion
1436 of the registry key],,)
1439 win32 | pe | cygwin* | mingw32* | uwin*)
1440 if test "x$enable_win32_registry" != xno; then
1441 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1444 if test "x$enable_win32_registry" != xno; then
1445 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1446 [Define to 1 if installation paths should be looked up in the Windows
1447 Registry. Ignored on non-Windows hosts.])
1449 if test "x$enable_win32_registry" != xyes \
1450 && test "x$enable_win32_registry" != x; then
1451 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1452 [Define to be the last component of the Windows registry key under which
1453 to look for installation paths. The full key used will be
1454 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1455 The default is the GCC version number.])
1461 # Get an absolute path to the GCC top-level source directory
1462 holddir=`${PWDCMD-pwd}`
1464 topdir=`${PWDCMD-pwd}`
1467 # Conditionalize the makefile for this host machine.
1469 for f in ${host_xmake_file}
1471 if test -f ${srcdir}/config/$f
1473 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1477 # Conditionalize the makefile for this target machine.
1479 for f in ${tmake_file}
1481 if test -f ${srcdir}/config/$f
1483 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1486 tmake_file="${tmake_file_}"
1488 # If the host doesn't support symlinks, modify CC in
1489 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1490 # Otherwise, we can use "CC=$(CC)".
1494 cc_set_by_configure="\$(CC)"
1495 quoted_cc_set_by_configure="\$(CC)"
1496 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1497 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1500 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1501 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1502 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1503 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1507 # This is a terrible hack which will go away some day.
1508 host_cc_for_libada=${CC}
1509 AC_SUBST(host_cc_for_libada)
1511 out_object_file=`basename $out_file .c`.o
1513 tm_file_list="options.h"
1514 tm_include_list="options.h"
1515 for f in $tm_file; do
1518 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1519 tm_include_list="${tm_include_list} $f"
1522 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1523 tm_include_list="${tm_include_list} config/$f"
1530 for f in $tm_p_file; do
1533 tm_p_file_list="${tm_p_file_list} $f"
1534 tm_p_include_list="${tm_p_include_list} $f"
1537 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1538 tm_p_include_list="${tm_p_include_list} config/$f"
1544 for f in $xm_file; do
1547 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1548 xm_include_list="${xm_include_list} $f"
1551 xm_file_list="${xm_file_list} $f"
1552 xm_include_list="${xm_include_list} $f"
1555 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1556 xm_include_list="${xm_include_list} config/$f"
1562 host_xm_include_list=
1563 for f in $host_xm_file; do
1566 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1567 host_xm_include_list="${host_xm_include_list} $f"
1570 host_xm_file_list="${host_xm_file_list} $f"
1571 host_xm_include_list="${host_xm_include_list} $f"
1574 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1575 host_xm_include_list="${host_xm_include_list} config/$f"
1581 for f in $build_xm_file; do
1584 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1585 build_xm_include_list="${build_xm_include_list} $f"
1587 auto-build.h | auto-host.h )
1588 build_xm_file_list="${build_xm_file_list} $f"
1589 build_xm_include_list="${build_xm_include_list} $f"
1592 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1593 build_xm_include_list="${build_xm_include_list} config/$f"
1598 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1599 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1600 CROSS= AC_SUBST(CROSS)
1601 ALL=all.internal AC_SUBST(ALL)
1602 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1603 if test x$host != x$target
1605 CROSS="-DCROSS_COMPILE"
1607 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1608 case "$host","$target" in
1609 # Darwin crosses can use the host system's libraries and headers,
1610 # because of the fat library support. Of course, it must be the
1611 # same version of Darwin on both sides. Allow the user to
1612 # just say --target=foo-darwin without a version number to mean
1613 # "the version on this system".
1614 *-*-darwin*,*-*-darwin*)
1615 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1616 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1617 if test $hostos = $targetos -o $targetos = darwin ; then
1619 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1624 i?86-*-*,x86_64-*-* \
1625 | powerpc*-*-*,powerpc64*-*-*)
1626 CROSS="$CROSS -DNATIVE_CROSS" ;;
1628 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1629 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1630 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1633 # If this is a cross-compiler that does not
1634 # have its own set of headers then define
1637 # If this is using newlib, without having the headers available now,
1638 # then define inhibit_libc in LIBGCC2_CFLAGS.
1639 # This prevents libgcc2 from containing any code which requires libc
1642 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1643 test x$with_newlib = xyes ; } &&
1644 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1645 inhibit_libc=-Dinhibit_libc
1647 AC_SUBST(inhibit_libc)
1649 # When building gcc with a cross-compiler, we need to adjust things so
1650 # that the generator programs are still built with the native compiler.
1651 # Also, we cannot run fixincludes or fix-header.
1653 # These are the normal (build=host) settings:
1654 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1655 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1656 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1658 # Possibly disable fixproto, on a per-target basis.
1659 case ${use_fixproto} in
1664 STMP_FIXPROTO=stmp-fixproto
1667 AC_SUBST(STMP_FIXPROTO)
1669 # And these apply if build != host, or we are generating coverage data
1670 if test x$build != x$host || test "x$coverage_flags" != x
1672 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1674 if test "x$TARGET_SYSTEM_ROOT" = x; then
1675 if [ "x$STMP_FIXPROTO" != x ] ; then
1676 STMP_FIXPROTO=stmp-install-fixproto
1681 # Expand extra_headers to include complete path.
1682 # This substitutes for lots of t-* files.
1684 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1685 for file in ${extra_headers} ; do
1686 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1689 # Define collect2 in Makefile.
1690 case $host_can_use_collect2 in
1692 *) collect2='collect2$(exeext)' ;;
1694 AC_SUBST([collect2])
1696 # Add a definition of USE_COLLECT2 if system wants one.
1697 case $use_collect2 in
1698 no) use_collect2= ;;
1701 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1702 xm_defines="${xm_defines} USE_COLLECT2"
1703 case $host_can_use_collect2 in
1705 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1711 # ---------------------------
1712 # Assembler & linker features
1713 # ---------------------------
1715 # Identify the assembler which will work hand-in-glove with the newly
1716 # built GCC, so that we can examine its features. This is the assembler
1717 # which will be driven by the driver program.
1719 # If build != host, and we aren't building gas in-tree, we identify a
1720 # build->target assembler and hope that it will have the same features
1721 # as the host->target assembler we'll be using.
1722 AC_MSG_CHECKING(what assembler to use)
1725 gcc_cv_gas_major_version=
1726 gcc_cv_gas_minor_version=
1727 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1728 if test -x "$DEFAULT_ASSEMBLER"; then
1729 gcc_cv_as="$DEFAULT_ASSEMBLER"
1730 elif test -x as$build_exeext; then
1731 # Build using assembler in the current directory.
1732 gcc_cv_as=./as$build_exeext
1733 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1734 && test -f ../gas/Makefile \
1735 && test x$build = x$host; then
1736 # Single tree build which includes gas. We want to prefer it
1737 # over whatever linker top-level may have detected, since
1738 # we'll use what we're building after installation anyway.
1740 _gcc_COMPUTE_GAS_VERSION
1741 rm -f as$build_exeext
1742 $LN_S ../gas/as-new$build_exeext as$build_exeext 2>/dev/null
1743 in_tree_gas_is_elf=no
1744 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1745 || (grep 'obj_format = multi' ../gas/Makefile \
1746 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1748 in_tree_gas_is_elf=yes
1750 m4_pattern_allow([AS_FOR_TARGET])dnl
1751 elif test -x "$AS_FOR_TARGET"; then
1752 gcc_cv_as="$AS_FOR_TARGET"
1753 elif test -x "$AS" && test x$host = x$target; then
1757 gcc_version=`cat $srcdir/BASE-VER`
1759 if test "x$gcc_cv_as" = x; then
1760 # Search the same directories that the installed compiler will
1761 # search. Else we may find the wrong assembler and lose. If we
1762 # do not find a suitable assembler binary, then try the user's
1765 # Also note we have to check MD_EXEC_PREFIX before checking the
1766 # user's path. Unfortunately, there is no good way to get at the
1767 # value of MD_EXEC_PREFIX here. So we do a brute force search
1768 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1769 # to be fixed as part of the make/configure rewrite too.
1771 if test "x$exec_prefix" = xNONE; then
1772 if test "x$prefix" = xNONE; then
1773 test_prefix=/usr/local
1778 test_prefix=$exec_prefix
1781 # If the loop below does not find an assembler, then use whatever
1782 # one we can find in the users's path. We are looking for a
1783 # ${build} -> ${target} assembler.
1784 if test "x$program_prefix" != xNONE; then
1785 gcc_cv_as=${program_prefix}as$build_exeext
1786 elif test x$build != x$host && test x$build != x$target; then
1787 gcc_cv_as=${target_noncanonical}-as$build_exeext
1789 gcc_cv_as=`echo as | sed "${program_transform_name}"`$build_exeext
1792 if test x$host = x$build; then
1793 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1794 $test_prefix/libexec/gcc/$target_noncanonical \
1795 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1796 /usr/lib/gcc/$target_noncanonical \
1797 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1798 $test_prefix/$target_noncanonical/bin"
1803 if test x$build = x$target; then
1804 test_dirs="$test_dirs \
1809 /bsd43/usr/lib/cmplrs/cc \
1810 /usr/cross64/usr/bin \
1811 /usr/lib/cmplrs/cc \
1812 /sysv/usr/lib/cmplrs/cc \
1813 /svr4/usr/lib/cmplrs/cc \
1817 for dir in $test_dirs; do
1818 if test -x $dir/as$build_exeext; then
1819 gcc_cv_as=$dir/as$build_exeext
1824 case $in_tree_gas in
1826 AC_MSG_RESULT("newly built gas")
1829 AC_MSG_RESULT($gcc_cv_as)
1833 # Identify the linker which will work hand-in-glove with the newly
1834 # built GCC, so that we can examine its features. This is the linker
1835 # which will be driven by the driver program.
1837 # If build != host, and we aren't building gas in-tree, we identify a
1838 # build->target linker and hope that it will have the same features
1839 # as the host->target linker we'll be using.
1840 AC_MSG_CHECKING(what linker to use)
1843 gcc_cv_gld_major_version=
1844 gcc_cv_gld_minor_version=
1845 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1846 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1847 if test -x "$DEFAULT_LINKER"; then
1848 gcc_cv_ld="$DEFAULT_LINKER"
1849 elif test -x collect-ld$build_exeext; then
1850 # Build using linker in the current directory.
1851 gcc_cv_ld=./collect-ld$build_exeext
1852 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1853 && test -f ../ld/Makefile \
1854 && test x$build = x$host; then
1855 # Single tree build which includes ld. We want to prefer it
1856 # over whatever linker top-level may have detected, since
1857 # we'll use what we're building after installation anyway.
1859 in_tree_ld_is_elf=no
1860 if (grep 'EMUL = .*elf' ../ld/Makefile \
1861 || grep 'EMUL = .*linux' ../ld/Makefile \
1862 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1863 in_tree_ld_is_elf=yes
1865 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
1868 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1870 if test x$gcc_cv_gld_version != x; then
1875 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1876 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1878 rm -f collect-ld$build_exeext
1879 $LN_S ../ld/ld-new$build_exeext collect-ld$build_exeext 2>/dev/null
1880 elif test -x "$LD_FOR_TARGET"; then
1881 gcc_cv_ld="$LD_FOR_TARGET"
1882 elif test -x "$LD" && test x$host = x$target; then
1886 if test "x$gcc_cv_ld" = x; then
1887 # Search the same directories that the installed compiler will
1888 # search. Else we may find the wrong linker and lose. If we
1889 # do not find a suitable linker binary, then try the user's
1892 # Also note we have to check MD_EXEC_PREFIX before checking the
1893 # user's path. Unfortunately, there is no good way to get at the
1894 # value of MD_EXEC_PREFIX here. So we do a brute force search
1895 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1896 # to be fixed as part of the make/configure rewrite too.
1898 if test "x$exec_prefix" = xNONE; then
1899 if test "x$prefix" = xNONE; then
1900 test_prefix=/usr/local
1905 test_prefix=$exec_prefix
1908 # If the loop below does not find a linker, then use whatever
1909 # one we can find in the users's path. We are looking for a
1910 # ${build} -> ${target} linker.
1911 if test "x$program_prefix" != xNONE; then
1912 gcc_cv_ld=${program_prefix}ld$build_exeext
1913 elif test x$build != x$host && test x$build != x$target; then
1914 gcc_cv_ld=${target_noncanonical}-ld$build_exeext
1916 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$build_exeext
1919 if test x$host = x$build; then
1920 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1921 $test_prefix/libexec/gcc/$target_noncanonical \
1922 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1923 /usr/lib/gcc/$target_noncanonical \
1924 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1925 $test_prefix/$target_noncanonical/bin"
1930 if test x$build = x$target; then
1931 test_dirs="$test_dirs \
1936 /bsd43/usr/lib/cmplrs/cc \
1937 /usr/cross64/usr/bin \
1938 /usr/lib/cmplrs/cc \
1939 /sysv/usr/lib/cmplrs/cc \
1940 /svr4/usr/lib/cmplrs/cc \
1944 for dir in $test_dirs; do
1945 if test -x $dir/ld$build_exeext; then
1946 gcc_cv_ld=$dir/ld$build_exeext
1953 AC_MSG_RESULT("newly built ld")
1956 AC_MSG_RESULT($gcc_cv_ld)
1960 # Figure out what nm we will be using.
1961 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1962 AC_MSG_CHECKING(what nm to use)
1964 if test -x nm$build_exeext; then
1965 gcc_cv_nm=./nm$build_exeext
1966 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1967 && test -f ../binutils/Makefile; then
1968 # Single tree build which includes binutils.
1970 gcc_cv_nm=./nm$build_exeext
1971 rm -f nm$build_exeext
1972 $LN_S ../binutils/nm-new$build_exeext nm$build_exeext 2>/dev/null
1973 elif test "x$program_prefix" != xNONE; then
1974 gcc_cv_nm=${program_prefix}nm$build_exeext
1975 elif test x$build != x$host && test x$build != x$target; then
1976 gcc_cv_nm=${target_noncanonical}-nm$build_exeext
1978 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$build_exeext
1981 yes) AC_MSG_RESULT("newly built nm") ;;
1982 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1985 # Figure out what objdump we will be using.
1986 AC_MSG_CHECKING(what objdump to use)
1988 if test -x objdump$build_exeext; then
1989 gcc_cv_objdump=./objdump$build_exeext
1990 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1991 && test -f ../binutils/Makefile; then
1992 # Single tree build which includes binutils.
1994 gcc_cv_objdump=./objdump$build_exeext
1995 rm -f objdump$build_exeext
1996 $LN_S ../binutils/objdump$build_exeext objdump$build_exeext 2>/dev/null
1997 elif test "x$program_prefix" != xNONE; then
1998 gcc_cv_objdump=${program_prefix}objdump$build_exeext
1999 elif test x$build != x$host && test x$build != x$target; then
2000 gcc_cv_objdump=${target_noncanonical}-objdump$build_exeext
2002 gcc_cv_objdump=`echo objdump | \
2003 sed "${program_transform_name}"`$build_exeext
2005 case $in_tree_objdump in
2006 yes) AC_MSG_RESULT("newly built objdump") ;;
2007 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
2010 # Figure out what assembler alignment features are present.
2011 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
2015 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
2016 [Define if your assembler supports .balign and .p2align.])])
2018 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
2021 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
2022 [Define if your assembler supports specifying the maximum number
2023 of bytes to skip when using the GAS .p2align command.])])
2025 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
2027 [conftest_label1: .word 0
2029 conftest_label2: .word 0
2031 [if test x$gcc_cv_nm != x; then
2032 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
2033 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
2034 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
2036 else gcc_cv_as_subsection_m1=yes
2038 rm -f conftest.nm1 conftest.nm2
2040 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2041 [Define if your assembler supports .subsection and .subsection -1 starts
2042 emitting at the beginning of your section.])])
2044 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2047 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2049 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
2052 .NSUBSPA $CODE$,COMDAT],,
2053 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
2055 # .hidden needs to be supported in both the assembler and the linker,
2056 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2057 # This is irritatingly difficult to feature test for; we have to check the
2058 # date string after the version number. If we've got an in-tree
2059 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2061 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2062 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2067 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2068 [if test $in_tree_ld = yes ; then
2070 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2071 && test $in_tree_ld_is_elf = yes; then
2072 gcc_cv_ld_hidden=yes
2075 gcc_cv_ld_hidden=yes
2076 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2077 if echo "$ld_ver" | grep GNU > /dev/null; then
2079 ld_vers=`echo $ld_ver | sed -n \
2080 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2081 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2082 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2083 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2084 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2085 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2086 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2087 if test 0"$ld_date" -lt 20020404; then
2088 if test -n "$ld_date"; then
2089 # If there was date string, but was earlier than 2002-04-04, fail
2091 elif test -z "$ld_vers"; then
2092 # If there was no date string nor ld version number, something is wrong
2095 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2096 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2097 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2098 test -z "$ld_vers_patch" && ld_vers_patch=0
2099 if test "$ld_vers_major" -lt 2; then
2101 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2102 gcc_cv_ld_hidden="no"
2103 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2111 hppa64*-*-hpux* | ia64*-*-hpux*)
2112 gcc_cv_ld_hidden=yes
2120 libgcc_visibility=no
2121 AC_SUBST(libgcc_visibility)
2122 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2123 libgcc_visibility=yes
2124 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2125 [Define if your assembler and linker support .hidden.])
2128 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2129 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2137 [# GAS versions before 2.11 do not support uleb128,
2138 # despite appearing to.
2139 # ??? There exists an elf-specific test that will crash
2140 # the assembler. Perhaps it's better to figure out whether
2141 # arbitrary sections are supported and try the test.
2142 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2143 if echo "$as_ver" | grep GNU > /dev/null; then
2145 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2146 as_major=`echo $as_ver | sed 's/\..*//'`
2147 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2149 if test $as_major -eq 2 && test $as_minor -lt 11
2151 else gcc_cv_as_leb128=yes
2154 [AC_DEFINE(HAVE_AS_LEB128, 1,
2155 [Define if your assembler supports .sleb128 and .uleb128.])])
2157 # GAS versions up to and including 2.11.0 may mis-optimize
2159 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2167 .section .eh_frame,"aw",@progbits
2169 .4byte .LECIE1-.LSCIE1
2183 .4byte .LEFDE1-.LASFDE1
2185 .4byte .LASFDE1-__FRAME_BEGIN__
2193 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2194 cat > conftest.lit <<EOF
2195 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2196 0010 01000000 12000000 18000000 00000000 ................
2197 0020 08000000 04080000 0044 .........D @&t@
2199 cat > conftest.big <<EOF
2200 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2201 0010 00000001 00000012 00000018 00000000 ................
2202 0020 00000008 04000000 0844 .........D @&t@
2204 # If the assembler didn't choke, and we can objdump,
2205 # and we got the correct data, then succeed.
2206 if test x$gcc_cv_objdump != x \
2207 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2208 | tail -3 > conftest.got \
2209 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2210 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2212 gcc_cv_as_eh_frame=yes
2213 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2214 gcc_cv_as_eh_frame=buggy
2216 # Uh oh, what do we do now?
2217 gcc_cv_as_eh_frame=no
2220 if test $gcc_cv_as_eh_frame = buggy; then
2221 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2222 [Define if your assembler mis-optimizes .eh_frame data.])
2225 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2226 [elf,2,12,0], [--fatal-warnings],
2227 [.section .rodata.str, "aMS", @progbits, 1])
2228 if test $gcc_cv_as_shf_merge = no; then
2229 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2230 [elf,2,12,0], [--fatal-warnings],
2231 [.section .rodata.str, "aMS", %progbits, 1])
2233 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2234 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2235 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2237 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2238 [elf,2,15,91], [--fatal-warnings],
2239 [.section .text,"axG",@progbits,.foo,comdat])
2240 if test $gcc_cv_as_comdat_group = yes; then
2241 gcc_cv_as_comdat_group_percent=no
2243 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2244 [elf,2,15,91], [--fatal-warnings],
2245 [.section .text,"axG",%progbits,.foo,comdat])
2247 AC_DEFINE_UNQUOTED(HAVE_GAS_COMDAT_GROUP,
2248 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2249 [Define 0/1 if your assembler supports COMDAT group.])
2251 # Thread-local storage - the check is heavily parametrized.
2260 .section ".tdata","awT",@progbits
2263 ldq $27,__tls_get_addr($29) !literal!1
2264 lda $16,foo($29) !tlsgd!1
2265 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2266 ldq $27,__tls_get_addr($29) !literal!2
2267 lda $16,foo($29) !tlsldm!2
2268 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2269 ldq $1,foo($29) !gotdtprel
2270 ldah $2,foo($29) !dtprelhi
2271 lda $3,foo($2) !dtprello
2272 lda $4,foo($29) !dtprel
2273 ldq $1,foo($29) !gottprel
2274 ldah $2,foo($29) !tprelhi
2275 lda $3,foo($2) !tprello
2276 lda $4,foo($29) !tprel'
2279 tls_as_opt=--fatal-warnings
2283 .section ".tdata","awT",@progbits
2292 .section ".tdata","awT",@progbits
2296 leal foo@TLSGD(,%ebx,1), %eax
2297 leal foo@TLSLDM(%ebx), %eax
2298 leal foo@DTPOFF(%eax), %edx
2299 movl foo@GOTTPOFF(%ebx), %eax
2300 subl foo@GOTTPOFF(%ebx), %eax
2301 addl foo@GOTNTPOFF(%ebx), %eax
2302 movl foo@INDNTPOFF, %eax
2303 movl $foo@TPOFF, %eax
2304 subl $foo@TPOFF, %eax
2305 leal foo@NTPOFF(%ecx), %eax'
2308 tls_as_opt=--fatal-warnings
2312 .section ".tdata","awT",@progbits
2316 leaq foo@TLSGD(%rip), %rdi
2317 leaq foo@TLSLD(%rip), %rdi
2318 leaq foo@DTPOFF(%rax), %rdx
2319 movq foo@GOTTPOFF(%rip), %rax
2320 movq $foo@TPOFF, %rax'
2323 tls_as_opt=--fatal-warnings
2327 .section ".tdata","awT",@progbits
2330 addl r16 = @ltoff(@dtpmod(foo#)), gp
2331 addl r17 = @ltoff(@dtprel(foo#)), gp
2332 addl r18 = @ltoff(@tprel(foo#)), gp
2333 addl r19 = @dtprel(foo#), gp
2334 adds r21 = @dtprel(foo#), r13
2335 movl r23 = @dtprel(foo#)
2336 addl r20 = @tprel(foo#), gp
2337 adds r22 = @tprel(foo#), r13
2338 movl r24 = @tprel(foo#)'
2341 tls_as_opt=--fatal-warnings
2345 .section .tdata,"awT",@progbits
2349 addiu $4, $28, %tlsgd(x)
2350 addiu $4, $28, %tlsldm(x)
2351 lui $4, %dtprel_hi(x)
2352 addiu $4, $4, %dtprel_lo(x)
2353 lw $4, %gottprel(x)($28)
2354 lui $4, %tprel_hi(x)
2355 addiu $4, $4, %tprel_lo(x)'
2358 tls_as_opt='-32 --fatal-warnings'
2362 .section ".tdata","awT",@progbits
2370 addi 3,31,ld0@got@tlsgd
2372 addi 3,31,x1@got@tlsld
2375 addis 9,3,x2@dtprel@ha
2376 addi 9,9,x2@dtprel@l
2377 lwz 9,x3@got@tprel(31)
2380 addis 9,2,x2@tprel@ha
2381 addi 9,9,x2@tprel@l'
2384 tls_as_opt="-a32 --fatal-warnings"
2388 .section ".tdata","awT",@progbits
2396 addi 3,2,ld0@got@tlsgd
2402 addi 3,2,x1@got@tlsld
2408 addis 9,3,x2@dtprel@ha
2409 addi 9,9,x2@dtprel@l
2412 ld 9,x3@got@dtprel(2)
2418 tls_as_opt="-a64 --fatal-warnings"
2422 .section ".tdata","awT",@progbits
2431 l %r1,foo@GOTNTPOFF(%r12)
2432 l %r1,0(%r1):tls_load:foo
2433 bas %r14,0(%r1,%r13):tls_gdcall:foo
2434 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2437 tls_as_opt="-m31 --fatal-warnings"
2441 .section ".tdata","awT",@progbits
2449 lg %r1,foo@GOTNTPOFF(%r12)
2450 larl %r1,foo@INDNTPOFF
2451 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2452 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2455 tls_as_opt="-m64 -Aesame --fatal-warnings"
2457 sh-*-* | sh[34]-*-*)
2459 .section ".tdata","awT",@progbits
2469 tls_as_opt=--fatal-warnings
2473 sparc*-sun-solaris2.*)
2480 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2482 .section ".tdata",#alloc,#write,#tls
2485 sethi %tgd_hi22(foo), %o0
2486 add %o0, %tgd_lo10(foo), %o1
2487 add %l7, %o1, %o0, %tgd_add(foo)
2488 call __tls_get_addr, %tgd_call(foo)
2489 sethi %tldm_hi22(foo), %l1
2490 add %l1, %tldm_lo10(foo), %l2
2491 add %l7, %l2, %o0, %tldm_add(foo)
2492 call __tls_get_addr, %tldm_call(foo)
2493 sethi %tldo_hix22(foo), %l3
2494 xor %l3, %tldo_lox10(foo), %l4
2495 add %o0, %l4, %l5, %tldo_add(foo)
2496 sethi %tie_hi22(foo), %o3
2497 add %o3, %tie_lo10(foo), %o3
2498 ld [%l7 + %o3], %o2, %tie_ld(foo)
2499 add %g7, %o2, %o4, %tie_add(foo)
2500 sethi %tle_hix22(foo), %l1
2501 xor %l1, %tle_lox10(foo), %o5
2502 ld [%g7 + %o5], %o1'
2507 .section ".tdata","awT",@progbits
2510 sethi %tgd_hi22(foo), %o0
2511 add %o0, %tgd_lo10(foo), %o1
2512 add %l7, %o1, %o0, %tgd_add(foo)
2513 call __tls_get_addr, %tgd_call(foo)
2514 sethi %tldm_hi22(foo), %l1
2515 add %l1, %tldm_lo10(foo), %l2
2516 add %l7, %l2, %o0, %tldm_add(foo)
2517 call __tls_get_addr, %tldm_call(foo)
2518 sethi %tldo_hix22(foo), %l3
2519 xor %l3, %tldo_lox10(foo), %l4
2520 add %o0, %l4, %l5, %tldo_add(foo)
2521 sethi %tie_hi22(foo), %o3
2522 add %o3, %tie_lo10(foo), %o3
2523 ld [%l7 + %o3], %o2, %tie_ld(foo)
2524 add %g7, %o2, %o4, %tie_add(foo)
2525 sethi %tle_hix22(foo), %l1
2526 xor %l1, %tle_lox10(foo), %o5
2527 ld [%g7 + %o5], %o1'
2530 tls_as_opt="-32 --fatal-warnings"
2535 if test -z "$tls_first_major"; then
2536 : # If we don't have a check, assume no support.
2538 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2539 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2540 [AC_DEFINE(HAVE_AS_TLS, 1,
2541 [Define if your assembler supports thread-local storage.])])
2544 # Target-specific assembler checks.
2546 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2547 gcc_cv_ld_static_dynamic=no
2548 if test $in_tree_ld = yes ; then
2549 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2550 gcc_cv_ld_static_dynamic=yes
2552 elif test x$gcc_cv_ld != x; then
2553 # Check if linker supports -Bstatic/-Bdynamic option
2554 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2555 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2556 gcc_cv_ld_static_dynamic=yes
2559 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2560 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2561 [Define if your linker supports -Bstatic/-Bdynamic option.])
2563 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2565 if test x"$demangler_in_ld" = xyes; then
2566 AC_MSG_CHECKING(linker --demangle support)
2567 gcc_cv_ld_demangle=no
2568 if test $in_tree_ld = yes; then
2569 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2570 gcc_cv_ld_demangle=yes
2572 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2573 # Check if the GNU linker supports --demangle option
2574 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2575 gcc_cv_ld_demangle=yes
2578 if test x"$gcc_cv_ld_demangle" = xyes; then
2579 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2580 [Define if your linker supports --demangle option.])
2582 AC_MSG_RESULT($gcc_cv_ld_demangle)
2586 # All TARGET_ABI_OSF targets.
2587 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2588 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2589 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2592 extbl $3, $2, $3 !lituse_bytoff!1
2593 ldq $2, a($29) !literal!1
2594 ldq $4, b($29) !literal!2
2595 ldq_u $3, 0($2) !lituse_base!1
2596 ldq $27, f($29) !literal!5
2597 jsr $26, ($27), f !lituse_jsr!5
2598 ldah $29, 0($26) !gpdisp!3
2599 lda $0, c($29) !gprel
2600 ldah $1, d($29) !gprelhigh
2601 lda $1, d($1) !gprellow
2602 lda $29, 0($29) !gpdisp!3],,
2603 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2604 [Define if your assembler supports explicit relocations.])])
2608 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2609 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2610 [-no-mul-bug-abort], [.text],,
2611 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2612 [Define if your assembler supports the -no-mul-bug-abort option.])])
2616 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2617 [.register %g2, #scratch],,
2618 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2619 [Define if your assembler supports .register.])])
2621 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2623 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2624 [Define if your assembler supports -relax option.])])
2626 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2627 gcc_cv_as_sparc_ua_pcrel,,
2635 .uaword %r_disp32(foo)],
2636 [if test x$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-*-*)
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.])
2966 powerpc64*-*-linux*)
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, "$prefix/include",
3009 [Define to PREFIX/include if cpp should also search that directory.])
3012 # Find out what GC implementation we want, or may, use.
3014 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3022 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3025 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3030 echo "Using $GGC for garbage collection."
3032 # Use the system's zlib library.
3034 zlibinc="-I\$(srcdir)/../zlib"
3035 AC_ARG_WITH(system-zlib,
3036 [ --with-system-zlib use installed libz],
3043 dnl Very limited version of automake's enable-maintainer-mode
3045 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3046 dnl maintainer-mode is disabled by default
3047 AC_ARG_ENABLE(maintainer-mode,
3048 [ --enable-maintainer-mode
3049 enable make rules and dependencies not useful
3050 (and sometimes confusing) to the casual installer],
3051 maintainer_mode=$enableval,
3054 AC_MSG_RESULT($maintainer_mode)
3056 if test "$maintainer_mode" = "yes"; then
3067 # Make empty files to contain the specs and options for each language.
3068 # Then add #include lines to for a compiler that has specs and/or options.
3073 for subdir in . $subdirs
3075 if test -f $srcdir/$subdir/lang.opt; then
3076 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3078 if test -f $srcdir/$subdir/lang-specs.h; then
3079 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3081 if test -f $srcdir/$subdir/$subdir-tree.def; then
3082 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3086 # These (without "all_") are set in each config-lang.in.
3087 # `language' must be a single word so is spelled singularly.
3092 all_outputs='Makefile gccbug mklibgcc libada-mk'
3093 # List of language makefile fragments.
3095 # List of language subdirectory makefiles. Deprecated.
3097 # Files for gengtype
3098 all_gtfiles="$target_gtfiles"
3099 # Files for gengtype with language
3100 all_gtfiles_files_langs=
3101 all_gtfiles_files_files=
3103 # Add the language fragments.
3104 # Languages are added via two mechanisms. Some information must be
3105 # recorded in makefile variables, these are defined in config-lang.in.
3106 # We accumulate them and plug them into the main Makefile.
3107 # The other mechanism is a set of hooks for each of the main targets
3108 # like `clean', `install', etc.
3110 language_hooks="Make-hooks"
3120 . ${srcdir}/$s/config-lang.in
3121 if test "x$language" = x
3123 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3126 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3127 if test -f ${srcdir}/$s/Makefile.in
3128 then all_lang_makefiles="$s/Makefile"
3130 all_languages="$all_languages $language"
3131 if test "x$boot_language" = xyes
3133 all_boot_languages="$all_boot_languages $language"
3135 all_compilers="$all_compilers $compilers"
3136 all_stagestuff="$all_stagestuff $stagestuff"
3137 all_outputs="$all_outputs $outputs"
3138 all_gtfiles="$all_gtfiles $gtfiles"
3141 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3142 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3146 # Pick up gtfiles for c
3149 . ${srcdir}/c-config-lang.in
3150 all_gtfiles="$all_gtfiles $gtfiles"
3153 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3154 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3158 for language in $all_languages
3160 check_languages="$check_languages check-$language"
3163 # We link each language in with a set of hooks, reached indirectly via
3168 target_list="all.build all.cross start.encap rest.encap tags \
3169 install-normal install-common install-man \
3170 uninstall info man srcextra srcman srcinfo \
3171 mostlyclean clean distclean maintainer-clean \
3172 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3173 for t in $target_list
3176 for lang in $all_languages
3180 echo "lang.$t: $x" >> Make-hooks
3189 echo "dir ." > .gdbinit
3190 echo "dir ${srcdir}" >> .gdbinit
3191 if test x$gdb_needs_out_file_path = xyes
3193 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3195 if test "x$subdirs" != x; then
3198 echo "dir ${srcdir}/$s" >> .gdbinit
3201 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3203 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3204 # absolute path for gcc_tooldir based on inserting the number of up-directory
3205 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3206 # $(libsubdir)/@(unlibsubdir) based path.
3207 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3208 # make and thus we'd get different behavior depending on where we built the
3210 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3211 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3213 changequote(<<, >>)dnl
3214 # An explanation of the sed strings:
3215 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3216 # -e 's|/$||' match a trailing forward slash and eliminates it
3217 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3218 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3220 # (*) Note this pattern overwrites the first character of the string
3221 # with a forward slash if one is not already present. This is not a
3222 # problem because the exact names of the sub-directories concerned is
3223 # unimportant, just the number of them matters.
3225 # The practical upshot of these patterns is like this:
3227 # prefix exec_prefix result
3228 # ------ ----------- ------
3230 # /foo/ /foo/bar ../
3231 # /foo /foo/bar/ ../
3232 # /foo/ /foo/bar/ ../
3233 # /foo /foo/bar/ugg ../../
3236 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3237 changequote([, ])dnl
3239 AC_SUBST(gcc_tooldir)
3242 # Find a directory in which to install a shared libgcc.
3244 AC_ARG_ENABLE(version-specific-runtime-libs,
3245 [ --enable-version-specific-runtime-libs
3246 specify that runtime libraries should be
3247 installed in a compiler-specific directory])
3249 AC_ARG_WITH(slibdir,
3250 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3251 slibdir="$with_slibdir",
3252 if test "${enable_version_specific_runtime_libs+set}" = set; then
3253 slibdir='$(libsubdir)'
3254 elif test "$host" != "$target"; then
3255 slibdir='$(build_tooldir)/lib'
3261 objdir=`${PWDCMD-pwd}`
3264 # Substitute configuration variables
3267 AC_SUBST(all_boot_languages)
3268 AC_SUBST(all_compilers)
3269 AC_SUBST(all_gtfiles)
3270 AC_SUBST(all_gtfiles_files_langs)
3271 AC_SUBST(all_gtfiles_files_files)
3272 AC_SUBST(all_lang_makefrags)
3273 AC_SUBST(all_lang_makefiles)
3274 AC_SUBST(all_languages)
3275 AC_SUBST(all_stagestuff)
3276 AC_SUBST(build_exeext)
3277 AC_SUBST(build_install_headers_dir)
3278 AC_SUBST(build_xm_file_list)
3279 AC_SUBST(build_xm_include_list)
3280 AC_SUBST(build_xm_defines)
3281 AC_SUBST(check_languages)
3282 AC_SUBST(cc_set_by_configure)
3283 AC_SUBST(quoted_cc_set_by_configure)
3284 AC_SUBST(cpp_install_dir)
3285 AC_SUBST(xmake_file)
3286 AC_SUBST(tmake_file)
3287 AC_SUBST(extra_gcc_objs)
3288 AC_SUBST(extra_headers_list)
3289 AC_SUBST(extra_objs)
3290 AC_SUBST(extra_parts)
3291 AC_SUBST(extra_passes)
3292 AC_SUBST(extra_programs)
3293 AC_SUBST(float_h_file)
3294 AC_SUBST(gcc_config_arguments)
3295 AC_SUBST(gcc_gxx_include_dir)
3296 AC_SUBST(libstdcxx_incdir)
3297 AC_SUBST(host_exeext)
3298 AC_SUBST(host_xm_file_list)
3299 AC_SUBST(host_xm_include_list)
3300 AC_SUBST(host_xm_defines)
3301 AC_SUBST(out_host_hook_obj)
3303 AC_SUBST(lang_opt_files)
3304 AC_SUBST(lang_specs_files)
3305 AC_SUBST(lang_tree_files)
3306 AC_SUBST(local_prefix)
3308 AC_SUBST(objc_boehm_gc)
3310 AC_SUBST(out_object_file)
3311 AC_SUBST(stage_prefix_set_by_configure)
3312 AC_SUBST(quoted_stage_prefix_set_by_configure)
3313 AC_SUBST(thread_file)
3314 AC_SUBST(tm_file_list)
3315 AC_SUBST(tm_include_list)
3316 AC_SUBST(tm_defines)
3317 AC_SUBST(tm_p_file_list)
3318 AC_SUBST(tm_p_include_list)
3319 AC_SUBST(xm_file_list)
3320 AC_SUBST(xm_include_list)
3321 AC_SUBST(xm_defines)
3322 AC_SUBST(c_target_objs)
3323 AC_SUBST(cxx_target_objs)
3324 AC_SUBST(target_cpu_default)
3326 AC_SUBST_FILE(language_hooks)
3328 TL_AC_GNU_MAKE_GCC_LIB_PATH
3331 if test x${build} = x${host} ; then
3332 if test x${host} = x${target} ; then
3333 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3335 echo "Links are now set up to build a cross-compiler" 1>&2
3336 echo " from ${host} to ${target}." 1>&2
3339 if test x${host} = x${target} ; then
3340 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3341 echo " for ${target}." 1>&2
3343 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3344 echo " from ${host} to ${target}." 1>&2
3348 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3349 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3351 # Configure the subdirectories
3352 # AC_CONFIG_SUBDIRS($subdirs)
3354 # Create the Makefile
3355 # and configure language subdirectories
3356 AC_CONFIG_FILES($all_outputs)
3358 AC_CONFIG_COMMANDS([default],
3360 case ${CONFIG_HEADERS} in
3361 *auto-host.h:config.in*)
3364 # Make sure all the subdirs exist.
3365 for d in $subdirs doc build
3367 test -d $d || mkdir $d
3369 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3370 # bootstrapping and the installation procedure can still use
3371 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3372 # FLAGS_TO_PASS has been modified to solve the problem there.
3373 # This is virtually a duplicate of what happens in configure.lang; we do
3374 # an extra check to make sure this only happens if ln -s can be used.
3377 for d in ${subdirs} ; do
3378 STARTDIR=`${PWDCMD-pwd}`
3380 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3383 $LN_S ../$t $t 2>/dev/null
3390 [subdirs='$subdirs'])