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$enable_werror = xyes ; then
391 # Enable expensive internal checks
392 AC_ARG_ENABLE(checking,
393 [ --enable-checking[=LIST]
394 enable expensive run-time checks. With LIST,
395 enable only specific categories of checks.
396 Categories are: assert,fold,gc,gcac,misc,
397 rtlflag,rtl,runtime,tree,valgrind,release,yes,all;],
398 [ac_checking_flags="${enableval}"],[
399 # Determine the default checks.
400 if test x$is_release = x ; then
401 ac_checking_flags=yes
403 ac_checking_flags=release
410 ac_runtime_checking=1
412 ac_gc_always_collect=
414 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
415 for check in $ac_checking_flags
418 yes) ac_assert_checking=1 ; ac_checking=1 ;
419 ac_tree_checking=1 ; ac_gc_checking=1 ;
420 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;;
421 no) ac_assert_checking= ; ac_checking= ;
422 ac_tree_checking= ; ac_rtl_checking= ;
423 ac_rtlflag_checking= ; ac_gc_checking= ;
424 ac_gc_always_collect= ; ac_fold_checking= ;;
425 all) ac_assert_checking=1 ; ac_checking=1 ;
426 ac_tree_checking=1 ; ac_rtl_checking=1 ;
427 ac_rtlflag_checking=1 ; ac_runtime_checking=1;
428 ac_gc_checking=1 ; ac_gc_always_collect=1 ;
429 ac_fold_checking=1 ;;
430 release) ac_assert_checking=1 ; ac_runtime_checking=1 ;;
431 assert) ac_assert_checking=1 ;;
432 fold) ac_fold_checking=1 ;;
433 gc) ac_gc_checking=1 ;;
434 gcac) ac_gc_always_collect=1 ;;
435 misc) ac_checking=1 ;;
436 rtlflag) ac_rtlflag_checking=1 ;;
437 rtl) ac_rtl_checking=1 ;;
438 runtime) ac_runtime_checking=1 ;;
439 tree) ac_tree_checking=1 ;;
440 valgrind) ac_checking_valgrind=1 ;;
441 *) AC_MSG_ERROR(unknown check category $check) ;;
447 if test x$ac_checking != x ; then
448 AC_DEFINE(ENABLE_CHECKING, 1,
449 [Define if you want more run-time sanity checks. This one gets a grab
450 bag of miscellaneous but relatively cheap checks.])
451 nocommon_flag=-fno-common
453 AC_SUBST(nocommon_flag)
454 if test x$ac_assert_checking != x ; then
455 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
456 [Define if you want assertions enabled. This is a cheap check.])
458 if test x$ac_runtime_checking != x ; then
459 AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1,
460 [Define if you want runtime assertions enabled. This is a cheap check.])
462 if test x$ac_tree_checking != x ; then
463 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
464 [Define if you want all operations on trees (the basic data
465 structure of the front ends) to be checked for dynamic type safety
466 at runtime. This is moderately expensive. The tree browser debugging
467 routines will also be enabled by this option.
469 TREEBROWSER=tree-browser.o
471 AC_SUBST(TREEBROWSER)
472 if test x$ac_rtl_checking != x ; then
473 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
474 [Define if you want all operations on RTL (the basic data structure
475 of the optimizer and back end) to be checked for dynamic type safety
476 at runtime. This is quite expensive.])
478 if test x$ac_rtlflag_checking != x ; then
479 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
480 [Define if you want RTL flag accesses to be checked against the RTL
481 codes that are supported for each access macro. This is relatively
484 if test x$ac_gc_checking != x ; then
485 AC_DEFINE(ENABLE_GC_CHECKING, 1,
486 [Define if you want the garbage collector to do object poisoning and
487 other memory allocation checks. This is quite expensive.])
489 if test x$ac_gc_always_collect != x ; then
490 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
491 [Define if you want the garbage collector to operate in maximally
492 paranoid mode, validating the entire heap and collecting garbage at
493 every opportunity. This is extremely expensive.])
495 if test x$ac_fold_checking != x ; then
496 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
497 [Define if you want fold checked that it never destructs its argument.
498 This is quite expensive.])
500 valgrind_path_defines=
503 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
504 dnl # an if statement. This was the source of very frustrating bugs
505 dnl # in converting to autoconf 2.5x!
506 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
508 if test x$ac_checking_valgrind != x ; then
509 # It is certainly possible that there's valgrind but no valgrind.h.
510 # GCC relies on making annotations so we must have both.
511 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
513 [#include <valgrind/memcheck.h>
514 #ifndef VALGRIND_DISCARD
515 #error VALGRIND_DISCARD not defined
517 [gcc_cv_header_valgrind_memcheck_h=yes],
518 [gcc_cv_header_valgrind_memcheck_h=no])
519 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
520 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
522 [#include <memcheck.h>
523 #ifndef VALGRIND_DISCARD
524 #error VALGRIND_DISCARD not defined
526 [gcc_cv_header_memcheck_h=yes],
527 gcc_cv_header_memcheck_h=no)
528 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
529 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
530 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
531 if test "x$valgrind_path" = "x" \
532 || (test $have_valgrind_h = no \
533 && test $gcc_cv_header_memcheck_h = no \
534 && test $gcc_cv_header_valgrind_memcheck_h = no); then
535 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
537 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
538 valgrind_command="$valgrind_path -q"
539 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
540 [Define if you want to run subprograms and generated programs
541 through valgrind (a memory checker). This is extremely expensive.])
542 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
543 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
544 [Define if valgrind's valgrind/memcheck.h header is installed.])
546 if test $gcc_cv_header_memcheck_h = yes; then
547 AC_DEFINE(HAVE_MEMCHECK_H, 1,
548 [Define if valgrind's memcheck.h header is installed.])
551 AC_SUBST(valgrind_path_defines)
552 AC_SUBST(valgrind_command)
554 AC_ARG_ENABLE(mapped-location,
555 [ --enable-mapped-location location_t is fileline integer cookie],,
556 enable_mapped_location=no)
558 if test "$enable_mapped_location" = yes ; then
559 AC_DEFINE(USE_MAPPED_LOCATION, 1,
560 [Define if location_t is fileline integer cookie.])
563 # Enable code coverage collection
564 AC_ARG_ENABLE(coverage,
565 [ --enable-coverage[=LEVEL]
566 enable compiler's code coverage collection.
567 Use to measure compiler performance and locate
568 unused parts of the compiler. With LEVEL, specify
569 optimization. Values are opt, noopt,
571 [case "${enableval}" in
573 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
576 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
579 # a.k.a. --disable-coverage
583 AC_MSG_ERROR(unknown coverage setting $enableval)
587 AC_SUBST(coverage_flags)
589 AC_ARG_ENABLE(gather-detailed-mem-stats,
590 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
591 [enable_gather_detailed_mem_stats=no])
592 if test x$enable_gather_detailed_mem_stats = xyes ; then
593 AC_DEFINE(GATHER_STATISTICS, 1,
594 [Define to enable detailed memory allocation stats gathering.])
597 # -------------------------------
598 # Miscenalleous configure options
599 # -------------------------------
603 [ --with-stabs arrange to use stabs instead of host debug format],
607 # Determine whether or not multilibs are enabled.
608 AC_ARG_ENABLE(multilib,
609 [ --enable-multilib enable library support for multiple ABIs],
610 [], [enable_multilib=yes])
611 AC_SUBST(enable_multilib)
613 # Enable __cxa_atexit for C++.
614 AC_ARG_ENABLE(__cxa_atexit,
615 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
619 # Pass with no value to take the default
620 # Pass with a value to specify a thread package
621 AC_ARG_ENABLE(threads,
622 [ --enable-threads enable thread usage for target GCC
623 --enable-threads=LIB use LIB thread package for target GCC],,
626 AC_ARG_ENABLE(objc-gc,
627 [ --enable-objc-gc enable the use of Boehm's garbage collector with
628 the GNU Objective-C runtime],
629 if test x$enable_objc_gc = xno; then
637 [ --with-dwarf2 force the default debug format to be DWARF 2],
638 dwarf2="$with_dwarf2",
641 AC_ARG_ENABLE(shared,
642 [ --disable-shared don't provide a shared libgcc],
644 case $enable_shared in
648 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
649 for pkg in $enableval; do
650 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
657 ], [enable_shared=yes])
658 AC_SUBST(enable_shared)
661 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
663 case ${with_sysroot} in
664 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
665 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
668 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
669 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
671 if test "x$exec_prefix" = xNONE; then
672 if test "x$prefix" = xNONE; then
673 test_prefix=/usr/local
678 test_prefix=$exec_prefix
680 case ${TARGET_SYSTEM_ROOT} in
681 "${test_prefix}"|"${test_prefix}/"*|\
682 '${exec_prefix}'|'${exec_prefix}/'*)
683 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
684 TARGET_SYSTEM_ROOT_DEFINE="$t"
689 TARGET_SYSTEM_ROOT_DEFINE=
690 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
692 AC_SUBST(TARGET_SYSTEM_ROOT)
693 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
694 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
696 # Build with intermodule optimisations
697 AC_ARG_ENABLE(intermodule,
698 [ --enable-intermodule build the compiler in one step],
699 [case ${enable_intermodule} in
700 yes) onestep="-onestep";;
706 # Sanity check enable_languages in case someone does not run the toplevel
707 # configure # script.
708 AC_ARG_ENABLE(languages,
709 [ --enable-languages=LIST specify which front-ends to build],
710 [case ,${enable_languages}, in
712 # go safe -- we cannot be much sure without the toplevel
714 # analysis of which target libs are present and usable
718 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
723 enable_languages=c,${enable_languages}
726 [enable_languages=c])
729 for lang in ${srcdir}/*/config-lang.in
732 # The odd quoting in the next line works around
733 # an apparent bug in bash 1.12 on linux.
735 ${srcdir}/[*]/config-lang.in) ;;
737 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
738 if test "x$lang_alias" = x
740 echo "$lang doesn't set \$language." 1>&2
743 case ",$enable_languages," in
745 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
753 # -------------------------
754 # Checks for other programs
755 # -------------------------
759 # Find some useful tools
761 # We need awk to create options.c and options.h.
762 # Bail out if it's missing.
764 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
772 # By default, the Darwin ranlib will not treat common symbols as
773 # definitions when building the archive table of contents. Other
774 # ranlibs do that; pass an option to the Darwin ranlib that makes
775 # it behave similarly.
781 AC_SUBST(ranlib_flags)
785 # See if cmp has --ignore-initial.
786 gcc_AC_PROG_CMP_IGNORE_INITIAL
788 # See if we have the mktemp command.
789 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
791 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
793 # See if makeinfo has been installed and is modern enough
794 # that we can use it.
795 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
796 [GNU texinfo.* \([0-9][0-9.]*\)],
798 if test $gcc_cv_prog_makeinfo_modern = no; then
799 MAKEINFO="$MISSING makeinfo"
801 *** Makeinfo is missing or too old.
802 *** Info documentation will not be built.])
809 # Is pod2man recent enough to regenerate manpages?
810 AC_MSG_CHECKING([for recent Pod::Man])
811 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
813 GENERATED_MANPAGES=generated-manpages
818 AC_SUBST(GENERATED_MANPAGES)
821 dnl Don't use AC_PROG_LEX; we insist on flex.
822 dnl LEXLIB is not useful in gcc.
823 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
826 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
828 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
829 # check for build == host before using them.
832 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
833 && test -d ../binutils ; then
834 NM='$(objdir)/../binutils/nm-new'
836 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
840 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
841 && test -d ../binutils ; then
842 AR='$(objdir)/../binutils/ar'
844 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
848 # --------------------
849 # Checks for C headers
850 # --------------------
852 AC_MSG_CHECKING(for GNU C library)
853 AC_CACHE_VAL(gcc_cv_glibc,
855 [#include <features.h>],[
856 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
857 #error Not a GNU C library system
861 AC_MSG_RESULT($gcc_cv_glibc)
862 if test $gcc_cv_glibc = yes; then
863 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
866 # Need to reject headers which give warnings, so that the -Werror bootstrap
867 # works later. *sigh* This needs to come before all header checks.
874 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
875 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
876 sys/resource.h sys/param.h sys/times.h sys/stat.h \
877 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
879 # Check for thread headers.
880 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
881 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
883 # These tests can't be done till we know if we have limits.h.
891 # Stage specific cflags for build.
897 stage1_cflags="-Wa,-J"
903 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
904 # sources; use -no-cpp-precomp to get to GNU cpp.
905 # Apple's GCC has bugs in designated initializer handling, so disable
907 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
910 AC_SUBST(stage1_cflags)
912 # These libraries may be used by collect2.
913 # We may need a special search path to get them linked.
914 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
916 for libs in '' -lld -lmld \
917 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
918 '-L/usr/lib/cmplrs/cc3.11 -lmld'
921 AC_TRY_LINK_FUNC(ldopen,
922 [gcc_cv_collect2_libs="$libs"; break])
925 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
926 case $gcc_cv_collect2_libs in
928 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
930 AC_SUBST(COLLECT2_LIBS)
932 # When building Ada code on Alpha, we need exc_resume which is usually in
933 # -lexc. So test for it.
936 AC_SEARCH_LIBS(exc_resume, exc)
939 AC_SUBST(GNAT_LIBEXC)
941 # Some systems put ldexp and frexp in libm instead of libc; assume
942 # they're both in the same place. jcf-dump needs them.
945 AC_SEARCH_LIBS(ldexp, m)
950 # Use <inttypes.h> only if it exists,
951 # doesn't clash with <sys/types.h>, and declares intmax_t.
952 AC_MSG_CHECKING(for inttypes.h)
953 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
955 [#include <sys/types.h>
956 #include <inttypes.h>],
958 [gcc_cv_header_inttypes_h=yes],
959 gcc_cv_header_inttypes_h=no)])
960 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
961 if test $gcc_cv_header_inttypes_h = yes; then
962 AC_DEFINE(HAVE_INTTYPES_H, 1,
963 [Define if you have a working <inttypes.h> header file.])
966 dnl Disabled until we have a complete test for buggy enum bitfields.
967 dnl gcc_AC_C_ENUM_BF_UNSIGNED
969 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
970 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
971 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
972 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
975 if test x$ac_cv_func_mbstowcs = xyes; then
976 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
977 [ AC_TRY_RUN([#include <stdlib.h>
983 gcc_cv_func_mbstowcs_works=yes,
984 gcc_cv_func_mbstowcs_works=no,
985 gcc_cv_func_mbstowcs_works=yes)])
986 if test x$gcc_cv_func_mbstowcs_works = xyes; then
987 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
988 [Define this macro if mbstowcs does not crash when its
989 first argument is NULL.])
993 AC_CHECK_TYPE(ssize_t, int)
995 # Try to determine the array type of the second argument of getgroups
996 # for the target system (int or gid_t).
998 if test "${target}" = "${build}"; then
999 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
1002 # This condition may need some tweaking. It should include all
1003 # targets where the array type of the second argument of getgroups
1004 # is int and the type of gid_t is not equivalent to int.
1005 *-*-sunos* | *-*-ultrix*)
1006 TARGET_GETGROUPS_T=int
1009 TARGET_GETGROUPS_T=gid_t
1013 AC_SUBST(TARGET_GETGROUPS_T)
1015 gcc_AC_FUNC_PRINTF_PTR
1016 gcc_AC_FUNC_MMAP_BLACKLIST
1020 # Under VMS, vfork works very differently than on Unix. The standard test
1021 # won't work, and it isn't easily adaptable. It makes more sense to
1023 ac_cv_func_vfork_works=yes
1029 # Until we have in-tree GNU iconv:
1031 AC_SUBST(LIBICONV_DEP)
1037 # We will need to find libiberty.h and ansidecl.h
1038 saved_CFLAGS="$CFLAGS"
1039 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1040 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
1041 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
1042 fprintf_unlocked strstr errno snprintf vasprintf \
1043 malloc realloc calloc free basename getopt clock getpagesize, , ,[
1044 #include "ansidecl.h"
1045 #include "system.h"])
1047 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1048 #include "ansidecl.h"
1050 #ifdef HAVE_SYS_RESOURCE_H
1051 #include <sys/resource.h>
1056 #include "ansidecl.h"
1058 #ifdef HAVE_SYS_RESOURCE_H
1059 #include <sys/resource.h>
1061 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
1062 [Define to \`long' if <sys/resource.h> doesn't define.])])
1064 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1065 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1066 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1067 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1068 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1069 #include "ansidecl.h"
1078 gcc_AC_CHECK_DECLS(times, , ,[
1079 #include "ansidecl.h"
1081 #ifdef HAVE_SYS_TIMES_H
1082 #include <sys/times.h>
1086 # More time-related stuff.
1087 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1089 #include "ansidecl.h"
1091 #ifdef HAVE_SYS_TIMES_H
1092 #include <sys/times.h>
1094 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
1095 if test $ac_cv_struct_tms = yes; then
1096 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1097 [Define if <sys/times.h> defines struct tms.])
1100 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1101 # revisit after autoconf 2.50.
1102 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1104 #include "ansidecl.h"
1106 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
1107 if test $gcc_cv_type_clock_t = yes; then
1108 AC_DEFINE(HAVE_CLOCK_T, 1,
1109 [Define if <time.h> defines clock_t.])
1112 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1113 CFLAGS="$saved_CFLAGS"
1115 gcc_AC_INITFINI_ARRAY
1117 # mkdir takes a single argument on some systems.
1118 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1126 # With Setjmp/Longjmp based exception handling.
1127 AC_ARG_ENABLE(sjlj-exceptions,
1128 [ --enable-sjlj-exceptions
1129 arrange to use setjmp/longjmp exception handling],
1130 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1131 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1132 [Define 0/1 to force the choice for exception handling model.])])
1134 # For platforms with the unwind ABI which includes an unwind library,
1135 # libunwind, we can choose to use the system libunwind.
1136 AC_ARG_WITH(system-libunwind,
1137 [ --with-system-libunwind use installed libunwind])
1139 # --------------------------------------------------------
1140 # Build, host, and target specific configuration fragments
1141 # --------------------------------------------------------
1143 # Collect build-machine-specific information.
1144 . ${srcdir}/config.build
1146 # Collect host-machine-specific information.
1147 . ${srcdir}/config.host
1151 # Collect target-machine-specific information.
1152 . ${srcdir}/config.gcc
1154 extra_objs="${host_extra_objs} ${extra_objs}"
1155 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1157 # Default the target-machine variables that were not explicitly set.
1158 if test x"$tm_file" = x
1159 then tm_file=$cpu_type/$cpu_type.h; fi
1161 if test x"$extra_headers" = x
1162 then extra_headers=; fi
1164 if test x$md_file = x
1165 then md_file=$cpu_type/$cpu_type.md; fi
1167 if test x$out_file = x
1168 then out_file=$cpu_type/$cpu_type.c; fi
1170 if test x"$tmake_file" = x
1171 then tmake_file=$cpu_type/t-$cpu_type
1174 if test x"$dwarf2" = xyes
1175 then tm_file="$tm_file tm-dwarf2.h"
1178 # Say what files are being used for the output code and MD file.
1179 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1180 echo "Using \`$srcdir/config/$md_file' as machine description file."
1182 # If any of the xm_file variables contain nonexistent files, warn
1183 # about them and drop them.
1186 for x in $build_xm_file; do
1187 if test -f $srcdir/config/$x
1189 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1195 for x in $host_xm_file; do
1196 if test -f $srcdir/config/$x
1198 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1204 for x in $xm_file; do
1205 if test -f $srcdir/config/$x
1207 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1213 for f in $tm_file; do
1216 if test $count = ax; then
1217 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1219 echo "Using the following target machine macro files:"
1220 for f in $tm_file; do
1221 echo " $srcdir/config/$f"
1225 if test x$need_64bit_hwint = xyes; then
1226 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1227 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1230 if test x$use_long_long_for_widest_fast_int = xyes; then
1231 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1232 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1233 efficiently supported by the host hardware.])
1237 for f in $host_xm_file; do
1240 if test $count = a; then
1242 elif test $count = ax; then
1243 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1245 echo "Using the following host machine macro files:"
1246 for f in $host_xm_file; do
1247 echo " $srcdir/config/$f"
1250 echo "Using ${out_host_hook_obj} for host machine hooks."
1252 if test "$host_xm_file" != "$build_xm_file"; then
1254 for f in $build_xm_file; do
1257 if test $count = a; then
1259 elif test $count = ax; then
1260 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1262 echo "Using the following build machine macro files:"
1263 for f in $build_xm_file; do
1264 echo " $srcdir/config/$f"
1273 # Check if a valid thread package
1274 case ${enable_threads} in
1277 target_thread_file='single'
1281 target_thread_file='single'
1283 aix | dce | gnat | irix | posix | posix95 | rtems | \
1284 single | solaris | vxworks | win32 )
1285 target_thread_file=${enable_threads}
1288 echo "${enable_threads} is an unknown thread package" 1>&2
1293 if test x${thread_file} = x; then
1294 # No thread file set by target-specific clauses in config.gcc,
1295 # so use file chosen by default logic above
1296 thread_file=${target_thread_file}
1299 # Make gthr-default.h if we have a thread file.
1301 if test $thread_file != single; then
1302 rm -f gthr-default.h
1303 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1304 gthread_flags=-DHAVE_GTHR_DEFAULT
1306 AC_SUBST(gthread_flags)
1313 if test x$enable___cxa_atexit = xyes || \
1314 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1315 if test x$host = x$target; then
1316 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1317 [echo "__cxa_atexit can't be enabled on this target"])
1319 # We can't check for __cxa_atexit when building a cross, so assume
1323 if test x$use_cxa_atexit = xyes; then
1324 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1325 [Define if you want to use __cxa_atexit, rather than atexit, to
1326 register C++ destructors for local statics and global objects.
1327 This is essential for fully standards-compliant handling of
1328 destructors, but requires __cxa_atexit in libc.])
1332 # Look for a file containing extra machine modes.
1333 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1334 extra_modes_file='$(srcdir)'/config/${extra_modes}
1335 AC_SUBST(extra_modes_file)
1336 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1337 [Define to the name of a file containing a list of extra machine modes
1338 for this architecture.])
1341 # Convert extra_options into a form suitable for Makefile use.
1343 for f in $extra_options; do
1344 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1346 AC_SUBST(extra_opt_files)
1348 # auto-host.h is the file containing items generated by autoconf and is
1349 # the first file included by config.h.
1350 # If host=build, it is correct to have bconfig include auto-host.h
1351 # as well. If host!=build, we are in error and need to do more
1352 # work to find out the build config parameters.
1353 if test x$host = x$build
1355 build_auto=auto-host.h
1357 # We create a subdir, then run autoconf in the subdir.
1358 # To prevent recursion we set host and build for the new
1359 # invocation of configure to the build for this invocation
1366 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1367 *) realsrcdir=../${srcdir};;
1369 saved_CFLAGS="${CFLAGS}"
1370 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1371 ${realsrcdir}/configure \
1372 --enable-languages=${enable_languages-all} \
1373 --target=$target_alias --host=$build_alias --build=$build_alias
1374 CFLAGS="${saved_CFLAGS}"
1376 # We just finished tests for the build machine, so rename
1377 # the file auto-build.h in the gcc directory.
1378 mv auto-host.h ../auto-build.h
1381 build_auto=auto-build.h
1383 AC_SUBST(build_subdir)
1385 tm_file="${tm_file} defaults.h"
1386 tm_p_file="${tm_p_file} tm-preds.h"
1387 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1388 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1389 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1390 # put this back in temporarily.
1391 xm_file="ansidecl.h ${xm_file}"
1398 # Compile in configure arguments.
1399 if test -f configargs.h ; then
1400 # Being re-configured.
1401 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1402 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1404 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1407 # Double all backslashes and backslash all quotes to turn
1408 # gcc_config_arguments into a C string.
1409 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1410 $gcc_config_arguments
1412 gcc_config_arguments_str=`cat conftest.out`
1415 cat > configargs.h <<EOF
1416 /* Generated automatically. */
1417 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1418 static const char thread_model[] = "$thread_file";
1420 static const struct {
1421 const char *name, *value;
1422 } configure_default_options[] = $configure_default_options;
1426 # Internationalization
1427 ZW_GNU_GETTEXT_SISTER_DIR
1429 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1430 # -liconv on the link line twice.
1431 case "$LIBINTL" in *$LIBICONV*)
1435 # Windows32 Registry support for specifying GCC installation paths.
1436 AC_ARG_ENABLE(win32-registry,
1437 [ --disable-win32-registry
1438 disable lookup of installation paths in the
1439 Registry on Windows hosts
1440 --enable-win32-registry enable registry lookup (default)
1441 --enable-win32-registry=KEY
1442 use KEY instead of GCC version as the last portion
1443 of the registry key],,)
1446 win32 | pe | cygwin* | mingw32* | uwin*)
1447 if test "x$enable_win32_registry" != xno; then
1448 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1451 if test "x$enable_win32_registry" != xno; then
1452 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1453 [Define to 1 if installation paths should be looked up in the Windows
1454 Registry. Ignored on non-Windows hosts.])
1456 if test "x$enable_win32_registry" != xyes \
1457 && test "x$enable_win32_registry" != x; then
1458 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1459 [Define to be the last component of the Windows registry key under which
1460 to look for installation paths. The full key used will be
1461 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1462 The default is the GCC version number.])
1468 # Get an absolute path to the GCC top-level source directory
1469 holddir=`${PWDCMD-pwd}`
1471 topdir=`${PWDCMD-pwd}`
1474 # Conditionalize the makefile for this host machine.
1476 for f in ${host_xmake_file}
1478 if test -f ${srcdir}/config/$f
1480 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1484 # Conditionalize the makefile for this target machine.
1486 for f in ${tmake_file}
1488 if test -f ${srcdir}/config/$f
1490 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1493 tmake_file="${tmake_file_}"
1495 # If the host doesn't support symlinks, modify CC in
1496 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1497 # Otherwise, we can use "CC=$(CC)".
1501 cc_set_by_configure="\$(CC)"
1502 quoted_cc_set_by_configure="\$(CC)"
1503 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1504 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1507 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1508 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1509 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1510 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1514 # This is a terrible hack which will go away some day.
1515 host_cc_for_libada=${CC}
1516 AC_SUBST(host_cc_for_libada)
1518 out_object_file=`basename $out_file .c`.o
1520 tm_file_list="options.h"
1521 tm_include_list="options.h"
1522 for f in $tm_file; do
1525 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1526 tm_include_list="${tm_include_list} $f"
1529 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1530 tm_include_list="${tm_include_list} config/$f"
1537 for f in $tm_p_file; do
1540 tm_p_file_list="${tm_p_file_list} $f"
1541 tm_p_include_list="${tm_p_include_list} $f"
1544 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1545 tm_p_include_list="${tm_p_include_list} config/$f"
1551 for f in $xm_file; do
1554 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1555 xm_include_list="${xm_include_list} $f"
1558 xm_file_list="${xm_file_list} $f"
1559 xm_include_list="${xm_include_list} $f"
1562 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1563 xm_include_list="${xm_include_list} config/$f"
1569 host_xm_include_list=
1570 for f in $host_xm_file; do
1573 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1574 host_xm_include_list="${host_xm_include_list} $f"
1577 host_xm_file_list="${host_xm_file_list} $f"
1578 host_xm_include_list="${host_xm_include_list} $f"
1581 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1582 host_xm_include_list="${host_xm_include_list} config/$f"
1588 for f in $build_xm_file; do
1591 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1592 build_xm_include_list="${build_xm_include_list} $f"
1594 auto-build.h | auto-host.h )
1595 build_xm_file_list="${build_xm_file_list} $f"
1596 build_xm_include_list="${build_xm_include_list} $f"
1599 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1600 build_xm_include_list="${build_xm_include_list} config/$f"
1605 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1606 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1607 CROSS= AC_SUBST(CROSS)
1608 ALL=all.internal AC_SUBST(ALL)
1609 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1610 if test x$host != x$target
1612 CROSS="-DCROSS_COMPILE"
1614 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1615 case "$host","$target" in
1616 # Darwin crosses can use the host system's libraries and headers,
1617 # because of the fat library support. Of course, it must be the
1618 # same version of Darwin on both sides. Allow the user to
1619 # just say --target=foo-darwin without a version number to mean
1620 # "the version on this system".
1621 *-*-darwin*,*-*-darwin*)
1622 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1623 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1624 if test $hostos = $targetos -o $targetos = darwin ; then
1626 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1631 i?86-*-*,x86_64-*-* \
1632 | powerpc*-*-*,powerpc64*-*-*)
1633 CROSS="$CROSS -DNATIVE_CROSS" ;;
1635 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1636 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1637 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1640 # If this is a cross-compiler that does not
1641 # have its own set of headers then define
1644 # If this is using newlib, without having the headers available now,
1645 # then define inhibit_libc in LIBGCC2_CFLAGS.
1646 # This prevents libgcc2 from containing any code which requires libc
1649 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1650 test x$with_newlib = xyes ; } &&
1651 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1652 inhibit_libc=-Dinhibit_libc
1654 AC_SUBST(inhibit_libc)
1656 # When building gcc with a cross-compiler, we need to adjust things so
1657 # that the generator programs are still built with the native compiler.
1658 # Also, we cannot run fixincludes or fix-header.
1660 # These are the normal (build=host) settings:
1661 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1662 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1663 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1665 # Possibly disable fixproto, on a per-target basis.
1666 case ${use_fixproto} in
1671 STMP_FIXPROTO=stmp-fixproto
1674 AC_SUBST(STMP_FIXPROTO)
1676 # And these apply if build != host, or we are generating coverage data
1677 if test x$build != x$host || test "x$coverage_flags" != x
1679 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1681 if test "x$TARGET_SYSTEM_ROOT" = x; then
1682 if [ "x$STMP_FIXPROTO" != x ] ; then
1683 STMP_FIXPROTO=stmp-install-fixproto
1688 # Expand extra_headers to include complete path.
1689 # This substitutes for lots of t-* files.
1691 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1692 for file in ${extra_headers} ; do
1693 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1696 # Define collect2 in Makefile.
1697 case $host_can_use_collect2 in
1699 *) collect2='collect2$(exeext)' ;;
1701 AC_SUBST([collect2])
1703 # Add a definition of USE_COLLECT2 if system wants one.
1704 case $use_collect2 in
1705 no) use_collect2= ;;
1708 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1709 xm_defines="${xm_defines} USE_COLLECT2"
1710 case $host_can_use_collect2 in
1712 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1718 # ---------------------------
1719 # Assembler & linker features
1720 # ---------------------------
1722 # Identify the assembler which will work hand-in-glove with the newly
1723 # built GCC, so that we can examine its features. This is the assembler
1724 # which will be driven by the driver program.
1726 # If build != host, and we aren't building gas in-tree, we identify a
1727 # build->target assembler and hope that it will have the same features
1728 # as the host->target assembler we'll be using.
1729 AC_MSG_CHECKING(what assembler to use)
1732 gcc_cv_gas_major_version=
1733 gcc_cv_gas_minor_version=
1734 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1735 if test -x "$DEFAULT_ASSEMBLER"; then
1736 gcc_cv_as="$DEFAULT_ASSEMBLER"
1737 elif test -x as$build_exeext; then
1738 # Build using assembler in the current directory.
1739 gcc_cv_as=./as$build_exeext
1740 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1741 && test -f ../gas/Makefile \
1742 && test x$build = x$host; then
1743 # Single tree build which includes gas. We want to prefer it
1744 # over whatever linker top-level may have detected, since
1745 # we'll use what we're building after installation anyway.
1747 _gcc_COMPUTE_GAS_VERSION
1748 rm -f as$build_exeext
1749 $LN_S ../gas/as-new$build_exeext as$build_exeext 2>/dev/null
1750 in_tree_gas_is_elf=no
1751 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1752 || (grep 'obj_format = multi' ../gas/Makefile \
1753 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1755 in_tree_gas_is_elf=yes
1757 m4_pattern_allow([AS_FOR_TARGET])dnl
1758 elif test -x "$AS_FOR_TARGET"; then
1759 gcc_cv_as="$AS_FOR_TARGET"
1760 elif test -x "$AS" && test x$host = x$target; then
1764 gcc_version=`cat $srcdir/BASE-VER`
1766 if test "x$gcc_cv_as" = x; then
1767 # Search the same directories that the installed compiler will
1768 # search. Else we may find the wrong assembler and lose. If we
1769 # do not find a suitable assembler binary, then try the user's
1772 # Also note we have to check MD_EXEC_PREFIX before checking the
1773 # user's path. Unfortunately, there is no good way to get at the
1774 # value of MD_EXEC_PREFIX here. So we do a brute force search
1775 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1776 # to be fixed as part of the make/configure rewrite too.
1778 if test "x$exec_prefix" = xNONE; then
1779 if test "x$prefix" = xNONE; then
1780 test_prefix=/usr/local
1785 test_prefix=$exec_prefix
1788 # If the loop below does not find an assembler, then use whatever
1789 # one we can find in the users's path. We are looking for a
1790 # ${build} -> ${target} assembler.
1791 if test "x$program_prefix" != xNONE; then
1792 gcc_cv_as=${program_prefix}as$build_exeext
1793 elif test x$build != x$host && test x$build != x$target; then
1794 gcc_cv_as=${target_noncanonical}-as$build_exeext
1796 gcc_cv_as=`echo as | sed "${program_transform_name}"`$build_exeext
1799 if test x$host = x$build; then
1800 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1801 $test_prefix/libexec/gcc/$target_noncanonical \
1802 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1803 /usr/lib/gcc/$target_noncanonical \
1804 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1805 $test_prefix/$target_noncanonical/bin"
1810 if test x$build = x$target; then
1811 test_dirs="$test_dirs \
1816 /bsd43/usr/lib/cmplrs/cc \
1817 /usr/cross64/usr/bin \
1818 /usr/lib/cmplrs/cc \
1819 /sysv/usr/lib/cmplrs/cc \
1820 /svr4/usr/lib/cmplrs/cc \
1824 for dir in $test_dirs; do
1825 if test -x $dir/as$build_exeext; then
1826 gcc_cv_as=$dir/as$build_exeext
1831 case $in_tree_gas in
1833 AC_MSG_RESULT("newly built gas")
1836 AC_MSG_RESULT($gcc_cv_as)
1840 # Identify the linker which will work hand-in-glove with the newly
1841 # built GCC, so that we can examine its features. This is the linker
1842 # which will be driven by the driver program.
1844 # If build != host, and we aren't building gas in-tree, we identify a
1845 # build->target linker and hope that it will have the same features
1846 # as the host->target linker we'll be using.
1847 AC_MSG_CHECKING(what linker to use)
1850 gcc_cv_gld_major_version=
1851 gcc_cv_gld_minor_version=
1852 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1853 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1854 if test -x "$DEFAULT_LINKER"; then
1855 gcc_cv_ld="$DEFAULT_LINKER"
1856 elif test -x collect-ld$build_exeext; then
1857 # Build using linker in the current directory.
1858 gcc_cv_ld=./collect-ld$build_exeext
1859 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1860 && test -f ../ld/Makefile \
1861 && test x$build = x$host; then
1862 # Single tree build which includes ld. We want to prefer it
1863 # over whatever linker top-level may have detected, since
1864 # we'll use what we're building after installation anyway.
1866 in_tree_ld_is_elf=no
1867 if (grep 'EMUL = .*elf' ../ld/Makefile \
1868 || grep 'EMUL = .*linux' ../ld/Makefile \
1869 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1870 in_tree_ld_is_elf=yes
1872 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
1875 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1877 if test x$gcc_cv_gld_version != x; then
1882 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1883 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1885 rm -f collect-ld$build_exeext
1886 $LN_S ../ld/ld-new$build_exeext collect-ld$build_exeext 2>/dev/null
1887 elif test -x "$LD_FOR_TARGET"; then
1888 gcc_cv_ld="$LD_FOR_TARGET"
1889 elif test -x "$LD" && test x$host = x$target; then
1893 if test "x$gcc_cv_ld" = x; then
1894 # Search the same directories that the installed compiler will
1895 # search. Else we may find the wrong linker and lose. If we
1896 # do not find a suitable linker binary, then try the user's
1899 # Also note we have to check MD_EXEC_PREFIX before checking the
1900 # user's path. Unfortunately, there is no good way to get at the
1901 # value of MD_EXEC_PREFIX here. So we do a brute force search
1902 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1903 # to be fixed as part of the make/configure rewrite too.
1905 if test "x$exec_prefix" = xNONE; then
1906 if test "x$prefix" = xNONE; then
1907 test_prefix=/usr/local
1912 test_prefix=$exec_prefix
1915 # If the loop below does not find a linker, then use whatever
1916 # one we can find in the users's path. We are looking for a
1917 # ${build} -> ${target} linker.
1918 if test "x$program_prefix" != xNONE; then
1919 gcc_cv_ld=${program_prefix}ld$build_exeext
1920 elif test x$build != x$host && test x$build != x$target; then
1921 gcc_cv_ld=${target_noncanonical}-ld$build_exeext
1923 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$build_exeext
1926 if test x$host = x$build; then
1927 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1928 $test_prefix/libexec/gcc/$target_noncanonical \
1929 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1930 /usr/lib/gcc/$target_noncanonical \
1931 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1932 $test_prefix/$target_noncanonical/bin"
1937 if test x$build = x$target; then
1938 test_dirs="$test_dirs \
1943 /bsd43/usr/lib/cmplrs/cc \
1944 /usr/cross64/usr/bin \
1945 /usr/lib/cmplrs/cc \
1946 /sysv/usr/lib/cmplrs/cc \
1947 /svr4/usr/lib/cmplrs/cc \
1951 for dir in $test_dirs; do
1952 if test -x $dir/ld$build_exeext; then
1953 gcc_cv_ld=$dir/ld$build_exeext
1960 AC_MSG_RESULT("newly built ld")
1963 AC_MSG_RESULT($gcc_cv_ld)
1967 # Figure out what nm we will be using.
1968 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1969 AC_MSG_CHECKING(what nm to use)
1971 if test -x nm$build_exeext; then
1972 gcc_cv_nm=./nm$build_exeext
1973 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1974 && test -f ../binutils/Makefile; then
1975 # Single tree build which includes binutils.
1977 gcc_cv_nm=./nm$build_exeext
1978 rm -f nm$build_exeext
1979 $LN_S ../binutils/nm-new$build_exeext nm$build_exeext 2>/dev/null
1980 elif test "x$program_prefix" != xNONE; then
1981 gcc_cv_nm=${program_prefix}nm$build_exeext
1982 elif test x$build != x$host && test x$build != x$target; then
1983 gcc_cv_nm=${target_noncanonical}-nm$build_exeext
1985 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$build_exeext
1988 yes) AC_MSG_RESULT("newly built nm") ;;
1989 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1992 # Figure out what objdump we will be using.
1993 AC_MSG_CHECKING(what objdump to use)
1995 if test -x objdump$build_exeext; then
1996 gcc_cv_objdump=./objdump$build_exeext
1997 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1998 && test -f ../binutils/Makefile; then
1999 # Single tree build which includes binutils.
2001 gcc_cv_objdump=./objdump$build_exeext
2002 rm -f objdump$build_exeext
2003 $LN_S ../binutils/objdump$build_exeext objdump$build_exeext 2>/dev/null
2004 elif test "x$program_prefix" != xNONE; then
2005 gcc_cv_objdump=${program_prefix}objdump$build_exeext
2006 elif test x$build != x$host && test x$build != x$target; then
2007 gcc_cv_objdump=${target_noncanonical}-objdump$build_exeext
2009 gcc_cv_objdump=`echo objdump | \
2010 sed "${program_transform_name}"`$build_exeext
2012 case $in_tree_objdump in
2013 yes) AC_MSG_RESULT("newly built objdump") ;;
2014 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
2017 # Figure out what assembler alignment features are present.
2018 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
2022 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
2023 [Define if your assembler supports .balign and .p2align.])])
2025 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
2028 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
2029 [Define if your assembler supports specifying the maximum number
2030 of bytes to skip when using the GAS .p2align command.])])
2032 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
2034 [conftest_label1: .word 0
2036 conftest_label2: .word 0
2038 [if test x$gcc_cv_nm != x; then
2039 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
2040 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
2041 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
2043 else gcc_cv_as_subsection_m1=yes
2045 rm -f conftest.nm1 conftest.nm2
2047 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2048 [Define if your assembler supports .subsection and .subsection -1 starts
2049 emitting at the beginning of your section.])])
2051 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2054 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2056 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
2059 .NSUBSPA $CODE$,COMDAT],,
2060 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
2062 # .hidden needs to be supported in both the assembler and the linker,
2063 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2064 # This is irritatingly difficult to feature test for; we have to check the
2065 # date string after the version number. If we've got an in-tree
2066 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2068 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2069 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2074 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2075 [if test $in_tree_ld = yes ; then
2077 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2078 && test $in_tree_ld_is_elf = yes; then
2079 gcc_cv_ld_hidden=yes
2082 gcc_cv_ld_hidden=yes
2083 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2084 if echo "$ld_ver" | grep GNU > /dev/null; then
2086 ld_vers=`echo $ld_ver | sed -n \
2087 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2088 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2089 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2090 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2091 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2092 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2093 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2094 if test 0"$ld_date" -lt 20020404; then
2095 if test -n "$ld_date"; then
2096 # If there was date string, but was earlier than 2002-04-04, fail
2098 elif test -z "$ld_vers"; then
2099 # If there was no date string nor ld version number, something is wrong
2102 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2103 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2104 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2105 test -z "$ld_vers_patch" && ld_vers_patch=0
2106 if test "$ld_vers_major" -lt 2; then
2108 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2109 gcc_cv_ld_hidden="no"
2110 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2118 hppa64*-*-hpux* | ia64*-*-hpux*)
2119 gcc_cv_ld_hidden=yes
2127 libgcc_visibility=no
2128 AC_SUBST(libgcc_visibility)
2129 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2130 libgcc_visibility=yes
2131 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2132 [Define if your assembler and linker support .hidden.])
2135 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2136 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2144 [# GAS versions before 2.11 do not support uleb128,
2145 # despite appearing to.
2146 # ??? There exists an elf-specific test that will crash
2147 # the assembler. Perhaps it's better to figure out whether
2148 # arbitrary sections are supported and try the test.
2149 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2150 if echo "$as_ver" | grep GNU > /dev/null; then
2152 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2153 as_major=`echo $as_ver | sed 's/\..*//'`
2154 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2156 if test $as_major -eq 2 && test $as_minor -lt 11
2158 else gcc_cv_as_leb128=yes
2161 [AC_DEFINE(HAVE_AS_LEB128, 1,
2162 [Define if your assembler supports .sleb128 and .uleb128.])])
2164 # GAS versions up to and including 2.11.0 may mis-optimize
2166 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2174 .section .eh_frame,"aw",@progbits
2176 .4byte .LECIE1-.LSCIE1
2190 .4byte .LEFDE1-.LASFDE1
2192 .4byte .LASFDE1-__FRAME_BEGIN__
2200 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2201 cat > conftest.lit <<EOF
2202 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2203 0010 01000000 12000000 18000000 00000000 ................
2204 0020 08000000 04080000 0044 .........D @&t@
2206 cat > conftest.big <<EOF
2207 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2208 0010 00000001 00000012 00000018 00000000 ................
2209 0020 00000008 04000000 0844 .........D @&t@
2211 # If the assembler didn't choke, and we can objdump,
2212 # and we got the correct data, then succeed.
2213 if test x$gcc_cv_objdump != x \
2214 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2215 | tail -3 > conftest.got \
2216 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2217 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2219 gcc_cv_as_eh_frame=yes
2220 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2221 gcc_cv_as_eh_frame=buggy
2223 # Uh oh, what do we do now?
2224 gcc_cv_as_eh_frame=no
2227 if test $gcc_cv_as_eh_frame = buggy; then
2228 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2229 [Define if your assembler mis-optimizes .eh_frame data.])
2232 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2233 [elf,2,12,0], [--fatal-warnings],
2234 [.section .rodata.str, "aMS", @progbits, 1])
2235 if test $gcc_cv_as_shf_merge = no; then
2236 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2237 [elf,2,12,0], [--fatal-warnings],
2238 [.section .rodata.str, "aMS", %progbits, 1])
2240 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2241 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2242 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2244 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2245 [elf,2,15,91], [--fatal-warnings],
2246 [.section .text,"axG",@progbits,.foo,comdat])
2247 if test $gcc_cv_as_comdat_group = yes; then
2248 gcc_cv_as_comdat_group_percent=no
2250 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2251 [elf,2,15,91], [--fatal-warnings],
2252 [.section .text,"axG",%progbits,.foo,comdat])
2254 AC_DEFINE_UNQUOTED(HAVE_GAS_COMDAT_GROUP,
2255 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2256 [Define 0/1 if your assembler supports COMDAT group.])
2258 # Thread-local storage - the check is heavily parametrized.
2267 .section ".tdata","awT",@progbits
2270 ldq $27,__tls_get_addr($29) !literal!1
2271 lda $16,foo($29) !tlsgd!1
2272 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2273 ldq $27,__tls_get_addr($29) !literal!2
2274 lda $16,foo($29) !tlsldm!2
2275 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2276 ldq $1,foo($29) !gotdtprel
2277 ldah $2,foo($29) !dtprelhi
2278 lda $3,foo($2) !dtprello
2279 lda $4,foo($29) !dtprel
2280 ldq $1,foo($29) !gottprel
2281 ldah $2,foo($29) !tprelhi
2282 lda $3,foo($2) !tprello
2283 lda $4,foo($29) !tprel'
2286 tls_as_opt=--fatal-warnings
2290 .section ".tdata","awT",@progbits
2299 .section ".tdata","awT",@progbits
2303 leal foo@TLSGD(,%ebx,1), %eax
2304 leal foo@TLSLDM(%ebx), %eax
2305 leal foo@DTPOFF(%eax), %edx
2306 movl foo@GOTTPOFF(%ebx), %eax
2307 subl foo@GOTTPOFF(%ebx), %eax
2308 addl foo@GOTNTPOFF(%ebx), %eax
2309 movl foo@INDNTPOFF, %eax
2310 movl $foo@TPOFF, %eax
2311 subl $foo@TPOFF, %eax
2312 leal foo@NTPOFF(%ecx), %eax'
2315 tls_as_opt=--fatal-warnings
2319 .section ".tdata","awT",@progbits
2323 leaq foo@TLSGD(%rip), %rdi
2324 leaq foo@TLSLD(%rip), %rdi
2325 leaq foo@DTPOFF(%rax), %rdx
2326 movq foo@GOTTPOFF(%rip), %rax
2327 movq $foo@TPOFF, %rax'
2330 tls_as_opt=--fatal-warnings
2334 .section ".tdata","awT",@progbits
2337 addl r16 = @ltoff(@dtpmod(foo#)), gp
2338 addl r17 = @ltoff(@dtprel(foo#)), gp
2339 addl r18 = @ltoff(@tprel(foo#)), gp
2340 addl r19 = @dtprel(foo#), gp
2341 adds r21 = @dtprel(foo#), r13
2342 movl r23 = @dtprel(foo#)
2343 addl r20 = @tprel(foo#), gp
2344 adds r22 = @tprel(foo#), r13
2345 movl r24 = @tprel(foo#)'
2348 tls_as_opt=--fatal-warnings
2352 .section .tdata,"awT",@progbits
2356 addiu $4, $28, %tlsgd(x)
2357 addiu $4, $28, %tlsldm(x)
2358 lui $4, %dtprel_hi(x)
2359 addiu $4, $4, %dtprel_lo(x)
2360 lw $4, %gottprel(x)($28)
2361 lui $4, %tprel_hi(x)
2362 addiu $4, $4, %tprel_lo(x)'
2365 tls_as_opt='-32 --fatal-warnings'
2369 .section ".tdata","awT",@progbits
2377 addi 3,31,ld0@got@tlsgd
2379 addi 3,31,x1@got@tlsld
2382 addis 9,3,x2@dtprel@ha
2383 addi 9,9,x2@dtprel@l
2384 lwz 9,x3@got@tprel(31)
2387 addis 9,2,x2@tprel@ha
2388 addi 9,9,x2@tprel@l'
2391 tls_as_opt="-a32 --fatal-warnings"
2395 .section ".tdata","awT",@progbits
2403 addi 3,2,ld0@got@tlsgd
2409 addi 3,2,x1@got@tlsld
2415 addis 9,3,x2@dtprel@ha
2416 addi 9,9,x2@dtprel@l
2419 ld 9,x3@got@dtprel(2)
2425 tls_as_opt="-a64 --fatal-warnings"
2429 .section ".tdata","awT",@progbits
2438 l %r1,foo@GOTNTPOFF(%r12)
2439 l %r1,0(%r1):tls_load:foo
2440 bas %r14,0(%r1,%r13):tls_gdcall:foo
2441 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2444 tls_as_opt="-m31 --fatal-warnings"
2448 .section ".tdata","awT",@progbits
2456 lg %r1,foo@GOTNTPOFF(%r12)
2457 larl %r1,foo@INDNTPOFF
2458 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2459 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2462 tls_as_opt="-m64 -Aesame --fatal-warnings"
2464 sh-*-* | sh[34]-*-*)
2466 .section ".tdata","awT",@progbits
2476 tls_as_opt=--fatal-warnings
2480 sparc*-sun-solaris2.*)
2487 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2489 .section ".tdata",#alloc,#write,#tls
2492 sethi %tgd_hi22(foo), %o0
2493 add %o0, %tgd_lo10(foo), %o1
2494 add %l7, %o1, %o0, %tgd_add(foo)
2495 call __tls_get_addr, %tgd_call(foo)
2496 sethi %tldm_hi22(foo), %l1
2497 add %l1, %tldm_lo10(foo), %l2
2498 add %l7, %l2, %o0, %tldm_add(foo)
2499 call __tls_get_addr, %tldm_call(foo)
2500 sethi %tldo_hix22(foo), %l3
2501 xor %l3, %tldo_lox10(foo), %l4
2502 add %o0, %l4, %l5, %tldo_add(foo)
2503 sethi %tie_hi22(foo), %o3
2504 add %o3, %tie_lo10(foo), %o3
2505 ld [%l7 + %o3], %o2, %tie_ld(foo)
2506 add %g7, %o2, %o4, %tie_add(foo)
2507 sethi %tle_hix22(foo), %l1
2508 xor %l1, %tle_lox10(foo), %o5
2509 ld [%g7 + %o5], %o1'
2514 .section ".tdata","awT",@progbits
2517 sethi %tgd_hi22(foo), %o0
2518 add %o0, %tgd_lo10(foo), %o1
2519 add %l7, %o1, %o0, %tgd_add(foo)
2520 call __tls_get_addr, %tgd_call(foo)
2521 sethi %tldm_hi22(foo), %l1
2522 add %l1, %tldm_lo10(foo), %l2
2523 add %l7, %l2, %o0, %tldm_add(foo)
2524 call __tls_get_addr, %tldm_call(foo)
2525 sethi %tldo_hix22(foo), %l3
2526 xor %l3, %tldo_lox10(foo), %l4
2527 add %o0, %l4, %l5, %tldo_add(foo)
2528 sethi %tie_hi22(foo), %o3
2529 add %o3, %tie_lo10(foo), %o3
2530 ld [%l7 + %o3], %o2, %tie_ld(foo)
2531 add %g7, %o2, %o4, %tie_add(foo)
2532 sethi %tle_hix22(foo), %l1
2533 xor %l1, %tle_lox10(foo), %o5
2534 ld [%g7 + %o5], %o1'
2537 tls_as_opt="-32 --fatal-warnings"
2542 if test -z "$tls_first_major"; then
2543 : # If we don't have a check, assume no support.
2545 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2546 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2547 [AC_DEFINE(HAVE_AS_TLS, 1,
2548 [Define if your assembler supports thread-local storage.])])
2551 # Target-specific assembler checks.
2553 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2554 gcc_cv_ld_static_dynamic=no
2555 if test $in_tree_ld = yes ; then
2556 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2557 gcc_cv_ld_static_dynamic=yes
2559 elif test x$gcc_cv_ld != x; then
2560 # Check if linker supports -Bstatic/-Bdynamic option
2561 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2562 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2563 gcc_cv_ld_static_dynamic=yes
2566 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2567 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2568 [Define if your linker supports -Bstatic/-Bdynamic option.])
2570 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2572 if test x"$demangler_in_ld" = xyes; then
2573 AC_MSG_CHECKING(linker --demangle support)
2574 gcc_cv_ld_demangle=no
2575 if test $in_tree_ld = yes; then
2576 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2577 gcc_cv_ld_demangle=yes
2579 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2580 # Check if the GNU linker supports --demangle option
2581 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2582 gcc_cv_ld_demangle=yes
2585 if test x"$gcc_cv_ld_demangle" = xyes; then
2586 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2587 [Define if your linker supports --demangle option.])
2589 AC_MSG_RESULT($gcc_cv_ld_demangle)
2593 # All TARGET_ABI_OSF targets.
2594 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2595 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2596 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2599 extbl $3, $2, $3 !lituse_bytoff!1
2600 ldq $2, a($29) !literal!1
2601 ldq $4, b($29) !literal!2
2602 ldq_u $3, 0($2) !lituse_base!1
2603 ldq $27, f($29) !literal!5
2604 jsr $26, ($27), f !lituse_jsr!5
2605 ldah $29, 0($26) !gpdisp!3
2606 lda $0, c($29) !gprel
2607 ldah $1, d($29) !gprelhigh
2608 lda $1, d($1) !gprellow
2609 lda $29, 0($29) !gpdisp!3],,
2610 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2611 [Define if your assembler supports explicit relocations.])])
2615 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2616 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2617 [-no-mul-bug-abort], [.text],,
2618 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2619 [Define if your assembler supports the -no-mul-bug-abort option.])])
2623 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2624 [.register %g2, #scratch],,
2625 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2626 [Define if your assembler supports .register.])])
2628 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2630 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2631 [Define if your assembler supports -relax option.])])
2633 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2634 gcc_cv_as_sparc_ua_pcrel,,
2642 .uaword %r_disp32(foo)],
2643 [if test x$gcc_cv_ld != x \
2644 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2645 gcc_cv_as_sparc_ua_pcrel=yes
2648 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2649 [Define if your assembler and linker support unaligned PC relative relocs.])
2651 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2652 gcc_cv_as_sparc_ua_pcrel_hidden,,
2657 .uaword %r_disp32(foo)
2658 .byte 0x32, 0x33, 0x34
2663 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2664 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2665 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2666 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2667 if $gcc_cv_objdump -R conftest 2> /dev/null \
2668 | grep 'DISP32' > /dev/null 2>&1; then
2671 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2675 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2676 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2677 ]) # unaligned pcrel relocs
2679 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2680 gcc_cv_as_sparc_offsetable_lo10,,
2683 or %g1, %lo(ab) + 12, %g1
2684 or %g1, %lo(ab + 12), %g1],
2685 [if test x$gcc_cv_objdump != x \
2686 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2687 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2688 gcc_cv_as_sparc_offsetable_lo10=yes
2690 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2691 [Define if your assembler supports offsetable %lo().])])
2695 i[34567]86-*-* | x86_64-*-*)
2698 cygwin* | pe | mingw32*)
2699 # Used for DWARF 2 in PE
2700 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2701 gcc_cv_as_ix86_pe_secrel32,
2707 [if test x$gcc_cv_ld != x \
2708 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2709 gcc_cv_as_ix86_pe_secrel32=yes
2712 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2713 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2717 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2718 gcc_cv_as_ix86_filds_fists,
2719 [2,9,0],, [filds mem; fists mem],,
2720 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2721 [Define if your assembler uses the new HImode fild and fist notation.])])
2723 gcc_GAS_CHECK_FEATURE([cmov syntax],
2724 gcc_cv_as_ix86_cmov_sun_syntax,,,
2725 [cmovl.l %edx, %eax],,
2726 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2727 [Define if your assembler supports the Sun syntax for cmov.])])
2729 # This one is used unconditionally by i386.[ch]; it is to be defined
2730 # to 1 if the feature is present, 0 otherwise.
2731 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2732 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2738 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2739 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2740 [Define true if the assembler supports '.long foo@GOTOFF'.])
2744 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2745 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2747 addl r15 = @ltoffx(x#), gp
2749 ld8.mov r16 = [[r15]], x#],,
2750 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2751 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2757 *-*-aix*) conftest_s=' .csect .text[[PR]]
2760 gcc_GAS_CHECK_FEATURE([.machine directive support],
2761 gcc_cv_as_machine_directive,,,
2762 [ .machine ppc7400])
2763 if test x$gcc_cv_as_machine_directive != xyes; then
2764 echo "*** This target requires an assembler supporting \".machine\"" >&2
2765 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2766 test x$build = x$target && exit 1
2770 *) conftest_s=' .machine power4
2775 gcc_GAS_CHECK_FEATURE([mfcr field support],
2776 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2778 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2779 [Define if your assembler supports mfcr field.])])
2783 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2784 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2785 [ lw $4,%gp_rel(foo)($4)],,
2786 [if test x$target_cpu_default = x
2787 then target_cpu_default=MASK_EXPLICIT_RELOCS
2788 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2791 if test x$gas_flag = xyes \
2792 || test x"$host" != x"$build" \
2793 || test ! -x "$gcc_cv_as" \
2794 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2797 echo "*** This configuration requires the GNU assembler" >&2
2802 # ??? Not all targets support dwarf2 debug_line, even within a version
2803 # of gas. Moreover, we need to emit a valid instruction to trigger any
2804 # info to the output file. So, as supported targets are added to gas 2.11,
2805 # add some instruction here to (also) show we expect this might work.
2806 # ??? Once 2.11 is released, probably need to add first known working
2807 # version to the per-target configury.
2809 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2810 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2811 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2814 ia64*-*-* | s390*-*-*)
2821 if test x"$insn" != x; then
2823 .file 1 \"conftest.s\"
2826 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2827 gcc_cv_as_dwarf2_debug_line,
2828 [elf,2,11,0],, [$conftest_s],
2829 [if test x$gcc_cv_objdump != x \
2830 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
2831 | grep debug_line > /dev/null 2>&1; then
2832 gcc_cv_as_dwarf2_debug_line=yes
2835 # The .debug_line file table must be in the exact order that
2836 # we specified the files, since these indices are also used
2837 # by DW_AT_decl_file. Approximate this test by testing if
2838 # the assembler bitches if the same index is assigned twice.
2839 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2840 gcc_cv_as_dwarf2_file_buggy,,,
2844 if test $gcc_cv_as_dwarf2_debug_line = yes \
2845 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2846 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2847 [Define if your assembler supports dwarf2 .file/.loc directives,
2848 and preserves file table indices exactly as given.])
2851 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2852 gcc_cv_as_gdwarf2_flag,
2853 [elf,2,11,0], [--gdwarf2], [$insn],,
2854 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2855 [Define if your assembler supports the --gdwarf2 option.])])
2857 gcc_GAS_CHECK_FEATURE([--gstabs option],
2858 gcc_cv_as_gstabs_flag,
2859 [elf,2,11,0], [--gstabs], [$insn],
2860 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2861 # and warns about it, but still exits successfully. So check for
2863 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2865 else gcc_cv_as_gstabs_flag=yes
2867 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2868 [Define if your assembler supports the --gstabs option.])])
2871 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2872 gcc_cv_ld_ro_rw_mix=unknown
2873 if test $in_tree_ld = yes ; then
2874 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2875 && test $in_tree_ld_is_elf = yes; then
2876 gcc_cv_ld_ro_rw_mix=read-write
2878 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2879 echo '.section myfoosect, "a"' > conftest1.s
2880 echo '.section myfoosect, "aw"' > conftest2.s
2881 echo '.byte 1' >> conftest2.s
2882 echo '.section myfoosect, "a"' > conftest3.s
2883 echo '.byte 0' >> conftest3.s
2884 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2885 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2886 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2887 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2888 conftest2.o conftest3.o > /dev/null 2>&1; then
2889 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2890 | sed -e '/myfoosect/!d' -e N`
2891 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2892 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2893 gcc_cv_ld_ro_rw_mix=read-only
2895 gcc_cv_ld_ro_rw_mix=read-write
2900 rm -f conftest.* conftest[123].*
2903 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2904 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2905 [Define if your linker links a mix of read-only
2906 and read-write sections into a read-write section.])
2908 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2910 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2911 gcc_cv_ld_eh_frame_hdr=no
2912 if test $in_tree_ld = yes ; then
2913 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2914 && test $in_tree_ld_is_elf = yes; then
2915 gcc_cv_ld_eh_frame_hdr=yes
2917 elif test x$gcc_cv_ld != x; then
2918 # Check if linker supports --eh-frame-hdr option
2919 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2920 gcc_cv_ld_eh_frame_hdr=yes
2923 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2924 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2925 [Define if your linker supports --eh-frame-hdr option.])
2927 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2929 AC_MSG_CHECKING(linker position independent executable support)
2931 if test $in_tree_ld = yes ; then
2932 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2933 && test $in_tree_ld_is_elf = yes; then
2936 elif test x$gcc_cv_ld != x; then
2937 # Check if linker supports -pie option
2938 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2942 if test x"$gcc_cv_ld_pie" = xyes; then
2943 AC_DEFINE(HAVE_LD_PIE, 1,
2944 [Define if your linker supports -pie option.])
2946 AC_MSG_RESULT($gcc_cv_ld_pie)
2952 AC_CACHE_CHECK(linker --as-needed support,
2953 gcc_cv_ld_as_needed,
2954 [gcc_cv_ld_as_needed=no
2955 if test $in_tree_ld = yes ; then
2956 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2957 && test $in_tree_ld_is_elf = yes; then
2958 gcc_cv_ld_as_needed=yes
2960 elif test x$gcc_cv_ld != x; then
2961 # Check if linker supports --as-needed and --no-as-needed options
2962 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2963 gcc_cv_ld_as_needed=yes
2967 if test x"$gcc_cv_ld_as_needed" = xyes; then
2968 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2969 [Define if your linker supports --as-needed and --no-as-needed options.])
2973 powerpc64*-*-linux*)
2974 AC_CACHE_CHECK(linker support for omitting dot symbols,
2975 gcc_cv_ld_no_dot_syms,
2976 [gcc_cv_ld_no_dot_syms=no
2977 if test $in_tree_ld = yes ; then
2978 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
2979 gcc_cv_ld_no_dot_syms=yes
2981 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
2982 cat > conftest1.s <<EOF
2986 cat > conftest2.s <<EOF
2987 .section ".opd","aw"
2992 .quad .LEfoo,.TOC.@tocbase,0
2998 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
2999 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
3000 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
3001 gcc_cv_ld_no_dot_syms=yes
3003 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3006 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3007 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3008 [Define if your PowerPC64 linker only needs function descriptor syms.])
3013 if test x$with_sysroot = x && test x$host = x$target \
3014 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
3015 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3016 [Define to PREFIX/include if cpp should also search that directory.])
3019 # Find out what GC implementation we want, or may, use.
3021 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3029 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3032 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3037 echo "Using $GGC for garbage collection."
3039 # Use the system's zlib library.
3041 zlibinc="-I\$(srcdir)/../zlib"
3042 AC_ARG_WITH(system-zlib,
3043 [ --with-system-zlib use installed libz],
3050 dnl Very limited version of automake's enable-maintainer-mode
3052 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3053 dnl maintainer-mode is disabled by default
3054 AC_ARG_ENABLE(maintainer-mode,
3055 [ --enable-maintainer-mode
3056 enable make rules and dependencies not useful
3057 (and sometimes confusing) to the casual installer],
3058 maintainer_mode=$enableval,
3061 AC_MSG_RESULT($maintainer_mode)
3063 if test "$maintainer_mode" = "yes"; then
3074 # Make empty files to contain the specs and options for each language.
3075 # Then add #include lines to for a compiler that has specs and/or options.
3080 for subdir in . $subdirs
3082 if test -f $srcdir/$subdir/lang.opt; then
3083 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3085 if test -f $srcdir/$subdir/lang-specs.h; then
3086 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3088 if test -f $srcdir/$subdir/$subdir-tree.def; then
3089 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3093 # These (without "all_") are set in each config-lang.in.
3094 # `language' must be a single word so is spelled singularly.
3099 all_outputs='Makefile gccbug mklibgcc libada-mk'
3100 # List of language makefile fragments.
3102 # List of language subdirectory makefiles. Deprecated.
3104 # Files for gengtype
3105 all_gtfiles="$target_gtfiles"
3106 # Files for gengtype with language
3107 all_gtfiles_files_langs=
3108 all_gtfiles_files_files=
3110 # Add the language fragments.
3111 # Languages are added via two mechanisms. Some information must be
3112 # recorded in makefile variables, these are defined in config-lang.in.
3113 # We accumulate them and plug them into the main Makefile.
3114 # The other mechanism is a set of hooks for each of the main targets
3115 # like `clean', `install', etc.
3117 language_hooks="Make-hooks"
3127 . ${srcdir}/$s/config-lang.in
3128 if test "x$language" = x
3130 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3133 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3134 if test -f ${srcdir}/$s/Makefile.in
3135 then all_lang_makefiles="$s/Makefile"
3137 all_languages="$all_languages $language"
3138 if test "x$boot_language" = xyes
3140 all_boot_languages="$all_boot_languages $language"
3142 all_compilers="$all_compilers $compilers"
3143 all_stagestuff="$all_stagestuff $stagestuff"
3144 all_outputs="$all_outputs $outputs"
3145 all_gtfiles="$all_gtfiles $gtfiles"
3148 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3149 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3153 # Pick up gtfiles for c
3156 . ${srcdir}/c-config-lang.in
3157 all_gtfiles="$all_gtfiles $gtfiles"
3160 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3161 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3165 for language in $all_languages
3167 check_languages="$check_languages check-$language"
3170 # We link each language in with a set of hooks, reached indirectly via
3175 target_list="all.build all.cross start.encap rest.encap tags \
3176 install-normal install-common install-man \
3177 uninstall info man srcextra srcman srcinfo \
3178 mostlyclean clean distclean maintainer-clean \
3179 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3180 for t in $target_list
3183 for lang in $all_languages
3187 echo "lang.$t: $x" >> Make-hooks
3196 echo "dir ." > .gdbinit
3197 echo "dir ${srcdir}" >> .gdbinit
3198 if test x$gdb_needs_out_file_path = xyes
3200 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3202 if test "x$subdirs" != x; then
3205 echo "dir ${srcdir}/$s" >> .gdbinit
3208 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3210 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3211 # absolute path for gcc_tooldir based on inserting the number of up-directory
3212 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3213 # $(libsubdir)/@(unlibsubdir) based path.
3214 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3215 # make and thus we'd get different behavior depending on where we built the
3217 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3218 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3220 changequote(<<, >>)dnl
3221 # An explanation of the sed strings:
3222 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3223 # -e 's|/$||' match a trailing forward slash and eliminates it
3224 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3225 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3227 # (*) Note this pattern overwrites the first character of the string
3228 # with a forward slash if one is not already present. This is not a
3229 # problem because the exact names of the sub-directories concerned is
3230 # unimportant, just the number of them matters.
3232 # The practical upshot of these patterns is like this:
3234 # prefix exec_prefix result
3235 # ------ ----------- ------
3237 # /foo/ /foo/bar ../
3238 # /foo /foo/bar/ ../
3239 # /foo/ /foo/bar/ ../
3240 # /foo /foo/bar/ugg ../../
3243 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3244 changequote([, ])dnl
3246 AC_SUBST(gcc_tooldir)
3249 # Find a directory in which to install a shared libgcc.
3251 AC_ARG_ENABLE(version-specific-runtime-libs,
3252 [ --enable-version-specific-runtime-libs
3253 specify that runtime libraries should be
3254 installed in a compiler-specific directory])
3256 AC_ARG_WITH(slibdir,
3257 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3258 slibdir="$with_slibdir",
3259 if test "${enable_version_specific_runtime_libs+set}" = set; then
3260 slibdir='$(libsubdir)'
3261 elif test "$host" != "$target"; then
3262 slibdir='$(build_tooldir)/lib'
3268 objdir=`${PWDCMD-pwd}`
3271 # Substitute configuration variables
3274 AC_SUBST(all_boot_languages)
3275 AC_SUBST(all_compilers)
3276 AC_SUBST(all_gtfiles)
3277 AC_SUBST(all_gtfiles_files_langs)
3278 AC_SUBST(all_gtfiles_files_files)
3279 AC_SUBST(all_lang_makefrags)
3280 AC_SUBST(all_lang_makefiles)
3281 AC_SUBST(all_languages)
3282 AC_SUBST(all_stagestuff)
3283 AC_SUBST(build_exeext)
3284 AC_SUBST(build_install_headers_dir)
3285 AC_SUBST(build_xm_file_list)
3286 AC_SUBST(build_xm_include_list)
3287 AC_SUBST(build_xm_defines)
3288 AC_SUBST(check_languages)
3289 AC_SUBST(cc_set_by_configure)
3290 AC_SUBST(quoted_cc_set_by_configure)
3291 AC_SUBST(cpp_install_dir)
3292 AC_SUBST(xmake_file)
3293 AC_SUBST(tmake_file)
3294 AC_SUBST(extra_gcc_objs)
3295 AC_SUBST(extra_headers_list)
3296 AC_SUBST(extra_objs)
3297 AC_SUBST(extra_parts)
3298 AC_SUBST(extra_passes)
3299 AC_SUBST(extra_programs)
3300 AC_SUBST(float_h_file)
3301 AC_SUBST(gcc_config_arguments)
3302 AC_SUBST(gcc_gxx_include_dir)
3303 AC_SUBST(libstdcxx_incdir)
3304 AC_SUBST(host_exeext)
3305 AC_SUBST(host_xm_file_list)
3306 AC_SUBST(host_xm_include_list)
3307 AC_SUBST(host_xm_defines)
3308 AC_SUBST(out_host_hook_obj)
3310 AC_SUBST(lang_opt_files)
3311 AC_SUBST(lang_specs_files)
3312 AC_SUBST(lang_tree_files)
3313 AC_SUBST(local_prefix)
3315 AC_SUBST(objc_boehm_gc)
3317 AC_SUBST(out_object_file)
3318 AC_SUBST(stage_prefix_set_by_configure)
3319 AC_SUBST(quoted_stage_prefix_set_by_configure)
3320 AC_SUBST(thread_file)
3321 AC_SUBST(tm_file_list)
3322 AC_SUBST(tm_include_list)
3323 AC_SUBST(tm_defines)
3324 AC_SUBST(tm_p_file_list)
3325 AC_SUBST(tm_p_include_list)
3326 AC_SUBST(xm_file_list)
3327 AC_SUBST(xm_include_list)
3328 AC_SUBST(xm_defines)
3329 AC_SUBST(c_target_objs)
3330 AC_SUBST(cxx_target_objs)
3331 AC_SUBST(target_cpu_default)
3333 AC_SUBST_FILE(language_hooks)
3335 TL_AC_GNU_MAKE_GCC_LIB_PATH
3338 if test x${build} = x${host} ; then
3339 if test x${host} = x${target} ; then
3340 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3342 echo "Links are now set up to build a cross-compiler" 1>&2
3343 echo " from ${host} to ${target}." 1>&2
3346 if test x${host} = x${target} ; then
3347 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3348 echo " for ${target}." 1>&2
3350 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3351 echo " from ${host} to ${target}." 1>&2
3355 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3356 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3358 # Configure the subdirectories
3359 # AC_CONFIG_SUBDIRS($subdirs)
3361 # Create the Makefile
3362 # and configure language subdirectories
3363 AC_CONFIG_FILES($all_outputs)
3365 AC_CONFIG_COMMANDS([default],
3367 case ${CONFIG_HEADERS} in
3368 *auto-host.h:config.in*)
3371 # Make sure all the subdirs exist.
3372 for d in $subdirs doc build
3374 test -d $d || mkdir $d
3376 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3377 # bootstrapping and the installation procedure can still use
3378 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3379 # FLAGS_TO_PASS has been modified to solve the problem there.
3380 # This is virtually a duplicate of what happens in configure.lang; we do
3381 # an extra check to make sure this only happens if ln -s can be used.
3384 for d in ${subdirs} ; do
3385 STARTDIR=`${PWDCMD-pwd}`
3387 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3390 $LN_S ../$t $t 2>/dev/null
3397 [subdirs='$subdirs'])