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$enable_werror = xyes ; then
391 # Enable expensive internal checks
392 AC_ARG_ENABLE(checking,
393 [ --enable-checking[=LIST]
394 enable expensive run-time checks. With LIST,
395 enable only specific categories of checks.
396 Categories are: yes,no,all,none,release.
397 Flags are: assert,fold,gc,gcac,misc,
398 rtlflag,rtl,runtime,tree,valgrind.],
399 [ac_checking_flags="${enableval}"],[
400 # Determine the default checks.
401 if test x$is_release = x ; then
402 ac_checking_flags=yes
404 ac_checking_flags=release
410 ac_gc_always_collect=
413 ac_runtime_checking=1
415 ac_valgrind_checking=
416 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
417 for check in $ac_checking_flags
420 # these set all the flags to specific states
421 yes) ac_assert_checking=1 ; ac_checking=1 ;
422 ac_fold_checking= ; ac_gc_checking=1 ;
423 ac_gc_always_collect= ; ac_rtl_checking= ;
424 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
425 ac_tree_checking=1 ; ac_valgrind_checking= ;;
426 no|none) ac_assert_checking= ; ac_checking= ;
427 ac_fold_checking= ; ac_gc_checking= ;
428 ac_gc_always_collect= ; ac_rtl_checking= ;
429 ac_rtlflag_checking= ; ac_runtime_checking= ;
430 ac_tree_checking= ; ac_valgrind_checking= ;;
431 all) ac_assert_checking=1 ; ac_checking=1 ;
432 ac_fold_checking=1 ; ac_gc_checking=1 ;
433 ac_gc_always_collect=1 ; ac_rtl_checking=1 ;
434 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
435 ac_tree_checking=1 ; ac_valgrind_checking= ;;
436 release) ac_assert_checking=1 ; ac_checking= ;
437 ac_fold_checking= ; ac_gc_checking= ;
438 ac_gc_always_collect= ; ac_rtl_checking= ;
439 ac_rtlflag_checking= ; ac_runtime_checking=1 ;
440 ac_tree_checking= ; ac_valgrind_checking= ;;
441 # these enable particular checks
442 assert) ac_assert_checking=1 ;;
443 fold) ac_fold_checking=1 ;;
444 gc) ac_gc_checking=1 ;;
445 gcac) ac_gc_always_collect=1 ;;
446 misc) ac_checking=1 ;;
447 rtl) ac_rtl_checking=1 ;;
448 rtlflag) ac_rtlflag_checking=1 ;;
449 runtime) ac_runtime_checking=1 ;;
450 tree) ac_tree_checking=1 ;;
451 valgrind) ac_valgrind_checking=1 ;;
452 *) AC_MSG_ERROR(unknown check category $check) ;;
458 if test x$ac_checking != x ; then
459 AC_DEFINE(ENABLE_CHECKING, 1,
460 [Define if you want more run-time sanity checks. This one gets a grab
461 bag of miscellaneous but relatively cheap checks.])
462 nocommon_flag=-fno-common
464 AC_SUBST(nocommon_flag)
465 if test x$ac_assert_checking != x ; then
466 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
467 [Define if you want assertions enabled. This is a cheap check.])
469 GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING)
470 if test x$ac_runtime_checking != x ; then
471 AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1,
472 [Define if you want runtime assertions enabled. This is a cheap check.])
474 if test x$ac_tree_checking != x ; then
475 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
476 [Define if you want all operations on trees (the basic data
477 structure of the front ends) to be checked for dynamic type safety
478 at runtime. This is moderately expensive. The tree browser debugging
479 routines will also be enabled by this option.
481 TREEBROWSER=tree-browser.o
483 AC_SUBST(TREEBROWSER)
484 if test x$ac_rtl_checking != x ; then
485 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
486 [Define if you want all operations on RTL (the basic data structure
487 of the optimizer and back end) to be checked for dynamic type safety
488 at runtime. This is quite expensive.])
490 if test x$ac_rtlflag_checking != x ; then
491 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
492 [Define if you want RTL flag accesses to be checked against the RTL
493 codes that are supported for each access macro. This is relatively
496 if test x$ac_gc_checking != x ; then
497 AC_DEFINE(ENABLE_GC_CHECKING, 1,
498 [Define if you want the garbage collector to do object poisoning and
499 other memory allocation checks. This is quite expensive.])
501 if test x$ac_gc_always_collect != x ; then
502 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
503 [Define if you want the garbage collector to operate in maximally
504 paranoid mode, validating the entire heap and collecting garbage at
505 every opportunity. This is extremely expensive.])
507 if test x$ac_fold_checking != x ; then
508 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
509 [Define if you want fold checked that it never destructs its argument.
510 This is quite expensive.])
512 valgrind_path_defines=
515 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
516 dnl # an if statement. This was the source of very frustrating bugs
517 dnl # in converting to autoconf 2.5x!
518 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
520 if test x$ac_valgrind_checking != x ; then
521 # It is certainly possible that there's valgrind but no valgrind.h.
522 # GCC relies on making annotations so we must have both.
523 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
525 [#include <valgrind/memcheck.h>
526 #ifndef VALGRIND_DISCARD
527 #error VALGRIND_DISCARD not defined
529 [gcc_cv_header_valgrind_memcheck_h=yes],
530 [gcc_cv_header_valgrind_memcheck_h=no])
531 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
532 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
534 [#include <memcheck.h>
535 #ifndef VALGRIND_DISCARD
536 #error VALGRIND_DISCARD not defined
538 [gcc_cv_header_memcheck_h=yes],
539 gcc_cv_header_memcheck_h=no)
540 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
541 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
542 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
543 if test "x$valgrind_path" = "x" \
544 || (test $have_valgrind_h = no \
545 && test $gcc_cv_header_memcheck_h = no \
546 && test $gcc_cv_header_valgrind_memcheck_h = no); then
547 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
549 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
550 valgrind_command="$valgrind_path -q"
551 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
552 [Define if you want to run subprograms and generated programs
553 through valgrind (a memory checker). This is extremely expensive.])
554 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
555 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
556 [Define if valgrind's valgrind/memcheck.h header is installed.])
558 if test $gcc_cv_header_memcheck_h = yes; then
559 AC_DEFINE(HAVE_MEMCHECK_H, 1,
560 [Define if valgrind's memcheck.h header is installed.])
563 AC_SUBST(valgrind_path_defines)
564 AC_SUBST(valgrind_command)
566 AC_ARG_ENABLE(mapped-location,
567 [ --enable-mapped-location location_t is fileline integer cookie],,
568 enable_mapped_location=no)
570 if test "$enable_mapped_location" = yes ; then
571 AC_DEFINE(USE_MAPPED_LOCATION, 1,
572 [Define if location_t is fileline integer cookie.])
575 # Enable code coverage collection
576 AC_ARG_ENABLE(coverage,
577 [ --enable-coverage[=LEVEL]
578 enable compiler's code coverage collection.
579 Use to measure compiler performance and locate
580 unused parts of the compiler. With LEVEL, specify
581 optimization. Values are opt, noopt,
583 [case "${enableval}" in
585 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
588 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
591 # a.k.a. --disable-coverage
595 AC_MSG_ERROR(unknown coverage setting $enableval)
599 AC_SUBST(coverage_flags)
601 AC_ARG_ENABLE(gather-detailed-mem-stats,
602 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
603 [enable_gather_detailed_mem_stats=no])
604 if test x$enable_gather_detailed_mem_stats = xyes ; then
605 AC_DEFINE(GATHER_STATISTICS, 1,
606 [Define to enable detailed memory allocation stats gathering.])
609 # -------------------------------
610 # Miscenalleous configure options
611 # -------------------------------
615 [ --with-stabs arrange to use stabs instead of host debug format],
619 # Determine whether or not multilibs are enabled.
620 AC_ARG_ENABLE(multilib,
621 [ --enable-multilib enable library support for multiple ABIs],
622 [], [enable_multilib=yes])
623 AC_SUBST(enable_multilib)
625 # Enable __cxa_atexit for C++.
626 AC_ARG_ENABLE(__cxa_atexit,
627 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
631 # Pass with no value to take the default
632 # Pass with a value to specify a thread package
633 AC_ARG_ENABLE(threads,
634 [ --enable-threads enable thread usage for target GCC
635 --enable-threads=LIB use LIB thread package for target GCC],,
638 AC_ARG_ENABLE(objc-gc,
639 [ --enable-objc-gc enable the use of Boehm's garbage collector with
640 the GNU Objective-C runtime],
641 if test x$enable_objc_gc = xno; then
649 [ --with-dwarf2 force the default debug format to be DWARF 2],
650 dwarf2="$with_dwarf2",
653 AC_ARG_ENABLE(shared,
654 [ --disable-shared don't provide a shared libgcc],
656 case $enable_shared in
660 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
661 for pkg in $enableval; do
662 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
669 ], [enable_shared=yes])
670 AC_SUBST(enable_shared)
673 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
675 case ${with_sysroot} in
676 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
677 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
680 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
681 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
683 if test "x$exec_prefix" = xNONE; then
684 if test "x$prefix" = xNONE; then
685 test_prefix=/usr/local
690 test_prefix=$exec_prefix
692 case ${TARGET_SYSTEM_ROOT} in
693 "${test_prefix}"|"${test_prefix}/"*|\
694 '${exec_prefix}'|'${exec_prefix}/'*)
695 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
696 TARGET_SYSTEM_ROOT_DEFINE="$t"
701 TARGET_SYSTEM_ROOT_DEFINE=
702 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
704 AC_SUBST(TARGET_SYSTEM_ROOT)
705 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
706 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
708 # Build with intermodule optimisations
709 AC_ARG_ENABLE(intermodule,
710 [ --enable-intermodule build the compiler in one step],
711 [case ${enable_intermodule} in
712 yes) onestep="-onestep";;
718 # Sanity check enable_languages in case someone does not run the toplevel
719 # configure # script.
720 AC_ARG_ENABLE(languages,
721 [ --enable-languages=LIST specify which front-ends to build],
722 [case ,${enable_languages}, in
724 # go safe -- we cannot be much sure without the toplevel
726 # analysis of which target libs are present and usable
730 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
735 enable_languages=c,${enable_languages}
738 [enable_languages=c])
741 for lang in ${srcdir}/*/config-lang.in
744 # The odd quoting in the next line works around
745 # an apparent bug in bash 1.12 on linux.
747 ${srcdir}/[*]/config-lang.in) ;;
749 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
750 if test "x$lang_alias" = x
752 echo "$lang doesn't set \$language." 1>&2
755 case ",$enable_languages," in
757 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
765 # -------------------------
766 # Checks for other programs
767 # -------------------------
771 # Find some useful tools
773 # We need awk to create options.c and options.h.
774 # Bail out if it's missing.
776 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
784 # By default, the Darwin ranlib will not treat common symbols as
785 # definitions when building the archive table of contents. Other
786 # ranlibs do that; pass an option to the Darwin ranlib that makes
787 # it behave similarly.
793 AC_SUBST(ranlib_flags)
797 # See if cmp has --ignore-initial.
798 gcc_AC_PROG_CMP_IGNORE_INITIAL
800 # See if we have the mktemp command.
801 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
803 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
805 # See if makeinfo has been installed and is modern enough
806 # that we can use it.
807 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
808 [GNU texinfo.* \([0-9][0-9.]*\)],
810 if test $gcc_cv_prog_makeinfo_modern = no; then
811 MAKEINFO="$MISSING makeinfo"
813 *** Makeinfo is missing or too old.
814 *** Info documentation will not be built.])
821 # Is pod2man recent enough to regenerate manpages?
822 AC_MSG_CHECKING([for recent Pod::Man])
823 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
825 GENERATED_MANPAGES=generated-manpages
830 AC_SUBST(GENERATED_MANPAGES)
833 dnl Don't use AC_PROG_LEX; we insist on flex.
834 dnl LEXLIB is not useful in gcc.
835 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
838 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
840 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
841 # check for build == host before using them.
844 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
845 && test -d ../binutils ; then
846 NM='$(objdir)/../binutils/nm-new'
848 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
852 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
853 && test -d ../binutils ; then
854 AR='$(objdir)/../binutils/ar'
856 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
860 # --------------------
861 # Checks for C headers
862 # --------------------
864 AC_MSG_CHECKING(for GNU C library)
865 AC_CACHE_VAL(gcc_cv_glibc,
867 [#include <features.h>],[
868 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
869 #error Not a GNU C library system
873 AC_MSG_RESULT($gcc_cv_glibc)
874 if test $gcc_cv_glibc = yes; then
875 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
878 # Need to reject headers which give warnings, so that the -Werror bootstrap
879 # works later. *sigh* This needs to come before all header checks.
886 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
887 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
888 sys/resource.h sys/param.h sys/times.h sys/stat.h \
889 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
891 # Check for thread headers.
892 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
893 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
895 # These tests can't be done till we know if we have limits.h.
903 # Stage specific cflags for build.
909 stage1_cflags="-Wa,-J"
915 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
916 # sources; use -no-cpp-precomp to get to GNU cpp.
917 # Apple's GCC has bugs in designated initializer handling, so disable
919 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
922 AC_SUBST(stage1_cflags)
924 # These libraries may be used by collect2.
925 # We may need a special search path to get them linked.
926 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
928 for libs in '' -lld -lmld \
929 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
930 '-L/usr/lib/cmplrs/cc3.11 -lmld'
933 AC_TRY_LINK_FUNC(ldopen,
934 [gcc_cv_collect2_libs="$libs"; break])
937 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
938 case $gcc_cv_collect2_libs in
940 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
942 AC_SUBST(COLLECT2_LIBS)
944 # When building Ada code on Alpha, we need exc_resume which is usually in
945 # -lexc. So test for it.
948 AC_SEARCH_LIBS(exc_resume, exc)
951 AC_SUBST(GNAT_LIBEXC)
953 # Some systems put ldexp and frexp in libm instead of libc; assume
954 # they're both in the same place. jcf-dump needs them.
957 AC_SEARCH_LIBS(ldexp, m)
962 # Use <inttypes.h> only if it exists,
963 # doesn't clash with <sys/types.h>, and declares intmax_t.
964 AC_MSG_CHECKING(for inttypes.h)
965 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
967 [#include <sys/types.h>
968 #include <inttypes.h>],
970 [gcc_cv_header_inttypes_h=yes],
971 gcc_cv_header_inttypes_h=no)])
972 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
973 if test $gcc_cv_header_inttypes_h = yes; then
974 AC_DEFINE(HAVE_INTTYPES_H, 1,
975 [Define if you have a working <inttypes.h> header file.])
978 dnl Disabled until we have a complete test for buggy enum bitfields.
979 dnl gcc_AC_C_ENUM_BF_UNSIGNED
981 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
982 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
983 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
984 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
985 putchar_unlocked putc_unlocked)
986 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
987 sysconf strsignal getrusage nl_langinfo scandir alphasort \
988 gettimeofday mbstowcs wcswidth mmap mincore setlocale \
991 if test x$ac_cv_func_mbstowcs = xyes; then
992 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
993 [ AC_TRY_RUN([#include <stdlib.h>
999 gcc_cv_func_mbstowcs_works=yes,
1000 gcc_cv_func_mbstowcs_works=no,
1001 gcc_cv_func_mbstowcs_works=yes)])
1002 if test x$gcc_cv_func_mbstowcs_works = xyes; then
1003 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
1004 [Define this macro if mbstowcs does not crash when its
1005 first argument is NULL.])
1009 AC_CHECK_TYPE(ssize_t, int)
1011 # Try to determine the array type of the second argument of getgroups
1012 # for the target system (int or gid_t).
1014 if test "${target}" = "${build}"; then
1015 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
1018 # This condition may need some tweaking. It should include all
1019 # targets where the array type of the second argument of getgroups
1020 # is int and the type of gid_t is not equivalent to int.
1021 *-*-sunos* | *-*-ultrix*)
1022 TARGET_GETGROUPS_T=int
1025 TARGET_GETGROUPS_T=gid_t
1029 AC_SUBST(TARGET_GETGROUPS_T)
1031 gcc_AC_FUNC_PRINTF_PTR
1032 gcc_AC_FUNC_MMAP_BLACKLIST
1036 # Under VMS, vfork works very differently than on Unix. The standard test
1037 # won't work, and it isn't easily adaptable. It makes more sense to
1039 ac_cv_func_vfork_works=yes
1045 # Until we have in-tree GNU iconv:
1047 AC_SUBST(LIBICONV_DEP)
1053 # We will need to find libiberty.h and ansidecl.h
1054 saved_CFLAGS="$CFLAGS"
1055 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1056 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd strsignal \
1057 strstr errno snprintf vsnprintf vasprintf malloc realloc calloc \
1058 free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
1059 #include "ansidecl.h"
1060 #include "system.h"])
1062 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1063 #include "ansidecl.h"
1065 #ifdef HAVE_SYS_RESOURCE_H
1066 #include <sys/resource.h>
1071 #include "ansidecl.h"
1073 #ifdef HAVE_SYS_RESOURCE_H
1074 #include <sys/resource.h>
1076 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
1077 [Define to \`long' if <sys/resource.h> doesn't define.])])
1079 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1080 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1081 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1082 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1083 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1084 #include "ansidecl.h"
1093 gcc_AC_CHECK_DECLS(times, , ,[
1094 #include "ansidecl.h"
1096 #ifdef HAVE_SYS_TIMES_H
1097 #include <sys/times.h>
1101 # More time-related stuff.
1102 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1104 #include "ansidecl.h"
1106 #ifdef HAVE_SYS_TIMES_H
1107 #include <sys/times.h>
1109 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
1110 if test $ac_cv_struct_tms = yes; then
1111 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1112 [Define if <sys/times.h> defines struct tms.])
1115 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1116 # revisit after autoconf 2.50.
1117 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1119 #include "ansidecl.h"
1121 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
1122 if test $gcc_cv_type_clock_t = yes; then
1123 AC_DEFINE(HAVE_CLOCK_T, 1,
1124 [Define if <time.h> defines clock_t.])
1127 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1128 CFLAGS="$saved_CFLAGS"
1130 gcc_AC_INITFINI_ARRAY
1132 # mkdir takes a single argument on some systems.
1133 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1141 # With Setjmp/Longjmp based exception handling.
1142 AC_ARG_ENABLE(sjlj-exceptions,
1143 [ --enable-sjlj-exceptions
1144 arrange to use setjmp/longjmp exception handling],
1145 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1146 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1147 [Define 0/1 to force the choice for exception handling model.])])
1149 # For platforms with the unwind ABI which includes an unwind library,
1150 # libunwind, we can choose to use the system libunwind.
1151 AC_ARG_WITH(system-libunwind,
1152 [ --with-system-libunwind use installed libunwind])
1154 # --------------------------------------------------------
1155 # Build, host, and target specific configuration fragments
1156 # --------------------------------------------------------
1158 # Collect build-machine-specific information.
1159 . ${srcdir}/config.build
1161 # Collect host-machine-specific information.
1162 . ${srcdir}/config.host
1166 # Collect target-machine-specific information.
1167 . ${srcdir}/config.gcc
1169 extra_objs="${host_extra_objs} ${extra_objs}"
1170 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1172 # Default the target-machine variables that were not explicitly set.
1173 if test x"$tm_file" = x
1174 then tm_file=$cpu_type/$cpu_type.h; fi
1176 if test x"$extra_headers" = x
1177 then extra_headers=; fi
1179 if test x$md_file = x
1180 then md_file=$cpu_type/$cpu_type.md; fi
1182 if test x$out_file = x
1183 then out_file=$cpu_type/$cpu_type.c; fi
1185 if test x"$tmake_file" = x
1186 then tmake_file=$cpu_type/t-$cpu_type
1189 if test x"$dwarf2" = xyes
1190 then tm_file="$tm_file tm-dwarf2.h"
1193 # Say what files are being used for the output code and MD file.
1194 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1195 echo "Using \`$srcdir/config/$md_file' as machine description file."
1197 # If any of the xm_file variables contain nonexistent files, warn
1198 # about them and drop them.
1201 for x in $build_xm_file; do
1202 if test -f $srcdir/config/$x
1204 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1210 for x in $host_xm_file; do
1211 if test -f $srcdir/config/$x
1213 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1219 for x in $xm_file; do
1220 if test -f $srcdir/config/$x
1222 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1228 for f in $tm_file; do
1231 if test $count = ax; then
1232 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1234 echo "Using the following target machine macro files:"
1235 for f in $tm_file; do
1236 echo " $srcdir/config/$f"
1240 if test x$need_64bit_hwint = xyes; then
1241 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1242 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1245 if test x$use_long_long_for_widest_fast_int = xyes; then
1246 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1247 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1248 efficiently supported by the host hardware.])
1252 for f in $host_xm_file; do
1255 if test $count = a; then
1257 elif test $count = ax; then
1258 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1260 echo "Using the following host machine macro files:"
1261 for f in $host_xm_file; do
1262 echo " $srcdir/config/$f"
1265 echo "Using ${out_host_hook_obj} for host machine hooks."
1267 if test "$host_xm_file" != "$build_xm_file"; then
1269 for f in $build_xm_file; do
1272 if test $count = a; then
1274 elif test $count = ax; then
1275 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1277 echo "Using the following build machine macro files:"
1278 for f in $build_xm_file; do
1279 echo " $srcdir/config/$f"
1288 # Check if a valid thread package
1289 case ${enable_threads} in
1292 target_thread_file='single'
1296 target_thread_file='single'
1298 aix | dce | gnat | irix | posix | posix95 | rtems | \
1299 single | solaris | vxworks | win32 )
1300 target_thread_file=${enable_threads}
1303 echo "${enable_threads} is an unknown thread package" 1>&2
1308 if test x${thread_file} = x; then
1309 # No thread file set by target-specific clauses in config.gcc,
1310 # so use file chosen by default logic above
1311 thread_file=${target_thread_file}
1314 # Make gthr-default.h if we have a thread file.
1316 if test $thread_file != single; then
1317 rm -f gthr-default.h
1318 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1319 gthread_flags=-DHAVE_GTHR_DEFAULT
1321 AC_SUBST(gthread_flags)
1328 if test x$enable___cxa_atexit = xyes || \
1329 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1330 if test x$host = x$target; then
1331 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1332 [echo "__cxa_atexit can't be enabled on this target"])
1334 # We can't check for __cxa_atexit when building a cross, so assume
1338 if test x$use_cxa_atexit = xyes; then
1339 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1340 [Define if you want to use __cxa_atexit, rather than atexit, to
1341 register C++ destructors for local statics and global objects.
1342 This is essential for fully standards-compliant handling of
1343 destructors, but requires __cxa_atexit in libc.])
1347 # Look for a file containing extra machine modes.
1348 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1349 extra_modes_file='$(srcdir)'/config/${extra_modes}
1350 AC_SUBST(extra_modes_file)
1351 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1352 [Define to the name of a file containing a list of extra machine modes
1353 for this architecture.])
1356 # Convert extra_options into a form suitable for Makefile use.
1358 for f in $extra_options; do
1359 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1361 AC_SUBST(extra_opt_files)
1363 # auto-host.h is the file containing items generated by autoconf and is
1364 # the first file included by config.h.
1365 # If host=build, it is correct to have bconfig include auto-host.h
1366 # as well. If host!=build, we are in error and need to do more
1367 # work to find out the build config parameters.
1368 if test x$host = x$build
1370 build_auto=auto-host.h
1372 # We create a subdir, then run autoconf in the subdir.
1373 # To prevent recursion we set host and build for the new
1374 # invocation of configure to the build for this invocation
1381 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1382 *) realsrcdir=../${srcdir};;
1384 saved_CFLAGS="${CFLAGS}"
1385 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1386 ${realsrcdir}/configure \
1387 --enable-languages=${enable_languages-all} \
1388 --target=$target_alias --host=$build_alias --build=$build_alias
1389 CFLAGS="${saved_CFLAGS}"
1391 # We just finished tests for the build machine, so rename
1392 # the file auto-build.h in the gcc directory.
1393 mv auto-host.h ../auto-build.h
1396 build_auto=auto-build.h
1398 AC_SUBST(build_subdir)
1400 tm_file="${tm_file} defaults.h"
1401 tm_p_file="${tm_p_file} tm-preds.h"
1402 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1403 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1404 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1405 # put this back in temporarily.
1406 xm_file="auto-host.h ansidecl.h ${xm_file}"
1413 # Compile in configure arguments.
1414 if test -f configargs.h ; then
1415 # Being re-configured.
1416 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1417 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1419 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1422 # Double all backslashes and backslash all quotes to turn
1423 # gcc_config_arguments into a C string.
1424 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1425 $gcc_config_arguments
1427 gcc_config_arguments_str=`cat conftest.out`
1430 cat > configargs.h <<EOF
1431 /* Generated automatically. */
1432 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1433 static const char thread_model[] = "$thread_file";
1435 static const struct {
1436 const char *name, *value;
1437 } configure_default_options[] = $configure_default_options;
1441 # Internationalization
1442 ZW_GNU_GETTEXT_SISTER_DIR
1444 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1445 # -liconv on the link line twice.
1446 case "$LIBINTL" in *$LIBICONV*)
1450 # Windows32 Registry support for specifying GCC installation paths.
1451 AC_ARG_ENABLE(win32-registry,
1452 [ --disable-win32-registry
1453 disable lookup of installation paths in the
1454 Registry on Windows hosts
1455 --enable-win32-registry enable registry lookup (default)
1456 --enable-win32-registry=KEY
1457 use KEY instead of GCC version as the last portion
1458 of the registry key],,)
1461 win32 | pe | cygwin* | mingw32* | uwin*)
1462 if test "x$enable_win32_registry" != xno; then
1463 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1466 if test "x$enable_win32_registry" != xno; then
1467 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1468 [Define to 1 if installation paths should be looked up in the Windows
1469 Registry. Ignored on non-Windows hosts.])
1471 if test "x$enable_win32_registry" != xyes \
1472 && test "x$enable_win32_registry" != x; then
1473 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1474 [Define to be the last component of the Windows registry key under which
1475 to look for installation paths. The full key used will be
1476 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1477 The default is the GCC version number.])
1483 # Get an absolute path to the GCC top-level source directory
1484 holddir=`${PWDCMD-pwd}`
1486 topdir=`${PWDCMD-pwd}`
1489 # Conditionalize the makefile for this host machine.
1491 for f in ${host_xmake_file}
1493 if test -f ${srcdir}/config/$f
1495 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1499 # Conditionalize the makefile for this target machine.
1501 for f in ${tmake_file}
1503 if test -f ${srcdir}/config/$f
1505 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1508 tmake_file="${tmake_file_}"
1510 # If the host doesn't support symlinks, modify CC in
1511 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1512 # Otherwise, we can use "CC=$(CC)".
1516 cc_set_by_configure="\$(CC)"
1517 quoted_cc_set_by_configure="\$(CC)"
1518 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1519 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1522 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1523 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1524 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1525 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1529 # This is a terrible hack which will go away some day.
1530 host_cc_for_libada=${CC}
1531 AC_SUBST(host_cc_for_libada)
1533 out_object_file=`basename $out_file .c`.o
1535 tm_file_list="options.h"
1536 tm_include_list="options.h"
1537 for f in $tm_file; do
1540 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1541 tm_include_list="${tm_include_list} $f"
1544 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1545 tm_include_list="${tm_include_list} config/$f"
1552 for f in $tm_p_file; do
1555 tm_p_file_list="${tm_p_file_list} $f"
1556 tm_p_include_list="${tm_p_include_list} $f"
1559 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1560 tm_p_include_list="${tm_p_include_list} config/$f"
1566 for f in $xm_file; do
1569 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1570 xm_include_list="${xm_include_list} $f"
1573 xm_file_list="${xm_file_list} $f"
1574 xm_include_list="${xm_include_list} $f"
1577 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1578 xm_include_list="${xm_include_list} config/$f"
1584 host_xm_include_list=
1585 for f in $host_xm_file; do
1588 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1589 host_xm_include_list="${host_xm_include_list} $f"
1592 host_xm_file_list="${host_xm_file_list} $f"
1593 host_xm_include_list="${host_xm_include_list} $f"
1596 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1597 host_xm_include_list="${host_xm_include_list} config/$f"
1603 for f in $build_xm_file; do
1606 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1607 build_xm_include_list="${build_xm_include_list} $f"
1609 auto-build.h | auto-host.h )
1610 build_xm_file_list="${build_xm_file_list} $f"
1611 build_xm_include_list="${build_xm_include_list} $f"
1614 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1615 build_xm_include_list="${build_xm_include_list} config/$f"
1620 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1621 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1622 CROSS= AC_SUBST(CROSS)
1623 ALL=all.internal AC_SUBST(ALL)
1624 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1625 if test x$host != x$target
1627 CROSS="-DCROSS_COMPILE"
1629 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1630 case "$host","$target" in
1631 # Darwin crosses can use the host system's libraries and headers,
1632 # because of the fat library support. Of course, it must be the
1633 # same version of Darwin on both sides. Allow the user to
1634 # just say --target=foo-darwin without a version number to mean
1635 # "the version on this system".
1636 *-*-darwin*,*-*-darwin*)
1637 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1638 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1639 if test $hostos = $targetos -o $targetos = darwin ; then
1641 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1646 i?86-*-*,x86_64-*-* \
1647 | powerpc*-*-*,powerpc64*-*-*)
1648 CROSS="$CROSS -DNATIVE_CROSS" ;;
1650 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1651 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1652 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1655 # If this is a cross-compiler that does not
1656 # have its own set of headers then define
1659 # If this is using newlib, without having the headers available now,
1660 # then define inhibit_libc in LIBGCC2_CFLAGS.
1661 # This prevents libgcc2 from containing any code which requires libc
1664 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1665 test x$with_newlib = xyes ; } &&
1666 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1667 inhibit_libc=-Dinhibit_libc
1669 AC_SUBST(inhibit_libc)
1671 # When building gcc with a cross-compiler, we need to adjust things so
1672 # that the generator programs are still built with the native compiler.
1673 # Also, we cannot run fixincludes or fix-header.
1675 # These are the normal (build=host) settings:
1676 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1677 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1678 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1680 # Possibly disable fixproto, on a per-target basis.
1681 case ${use_fixproto} in
1686 STMP_FIXPROTO=stmp-fixproto
1689 AC_SUBST(STMP_FIXPROTO)
1691 # And these apply if build != host, or we are generating coverage data
1692 if test x$build != x$host || test "x$coverage_flags" != x
1694 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1696 if test "x$TARGET_SYSTEM_ROOT" = x; then
1697 if test "x$STMP_FIXPROTO" != x; then
1698 STMP_FIXPROTO=stmp-install-fixproto
1703 # Expand extra_headers to include complete path.
1704 # This substitutes for lots of t-* files.
1706 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1707 for file in ${extra_headers} ; do
1708 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1711 # Define collect2 in Makefile.
1712 case $host_can_use_collect2 in
1714 *) collect2='collect2$(exeext)' ;;
1716 AC_SUBST([collect2])
1718 # Add a definition of USE_COLLECT2 if system wants one.
1719 case $use_collect2 in
1720 no) use_collect2= ;;
1723 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1724 xm_defines="${xm_defines} USE_COLLECT2"
1725 case $host_can_use_collect2 in
1727 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1733 # ---------------------------
1734 # Assembler & linker features
1735 # ---------------------------
1737 # Identify the assembler which will work hand-in-glove with the newly
1738 # built GCC, so that we can examine its features. This is the assembler
1739 # which will be driven by the driver program.
1741 # If build != host, and we aren't building gas in-tree, we identify a
1742 # build->target assembler and hope that it will have the same features
1743 # as the host->target assembler we'll be using.
1744 AC_MSG_CHECKING(what assembler to use)
1747 gcc_cv_gas_major_version=
1748 gcc_cv_gas_minor_version=
1749 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1750 if test -x "$DEFAULT_ASSEMBLER"; then
1751 gcc_cv_as="$DEFAULT_ASSEMBLER"
1752 elif test -x as$build_exeext; then
1753 # Build using assembler in the current directory.
1754 gcc_cv_as=./as$build_exeext
1755 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1756 && test -f ../gas/Makefile \
1757 && test x$build = x$host; then
1758 # Single tree build which includes gas. We want to prefer it
1759 # over whatever linker top-level may have detected, since
1760 # we'll use what we're building after installation anyway.
1762 _gcc_COMPUTE_GAS_VERSION
1763 rm -f as$build_exeext
1764 $LN_S ../gas/as-new$build_exeext as$build_exeext 2>/dev/null
1765 in_tree_gas_is_elf=no
1766 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1767 || (grep 'obj_format = multi' ../gas/Makefile \
1768 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1770 in_tree_gas_is_elf=yes
1772 m4_pattern_allow([AS_FOR_TARGET])dnl
1773 elif test -x "$AS_FOR_TARGET"; then
1774 gcc_cv_as="$AS_FOR_TARGET"
1775 elif test -x "$AS" && test x$host = x$target; then
1779 gcc_version=`cat $srcdir/BASE-VER`
1781 if test "x$gcc_cv_as" = x; then
1782 # Search the same directories that the installed compiler will
1783 # search. Else we may find the wrong assembler and lose. If we
1784 # do not find a suitable assembler binary, then try the user's
1787 # Also note we have to check MD_EXEC_PREFIX before checking the
1788 # user's path. Unfortunately, there is no good way to get at the
1789 # value of MD_EXEC_PREFIX here. So we do a brute force search
1790 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1791 # to be fixed as part of the make/configure rewrite too.
1793 if test "x$exec_prefix" = xNONE; then
1794 if test "x$prefix" = xNONE; then
1795 test_prefix=/usr/local
1800 test_prefix=$exec_prefix
1803 # If the loop below does not find an assembler, then use whatever
1804 # one we can find in the users's path. We are looking for a
1805 # ${build} -> ${target} assembler.
1806 if test "x$program_prefix" != xNONE; then
1807 gcc_cv_as=${program_prefix}as$build_exeext
1808 elif test x$build != x$host && test x$build != x$target; then
1809 gcc_cv_as=${target_noncanonical}-as$build_exeext
1811 gcc_cv_as=`echo as | sed "${program_transform_name}"`$build_exeext
1814 if test x$host = x$build; then
1815 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1816 $test_prefix/libexec/gcc/$target_noncanonical \
1817 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1818 /usr/lib/gcc/$target_noncanonical \
1819 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1820 $test_prefix/$target_noncanonical/bin"
1825 if test x$build = x$target; then
1826 test_dirs="$test_dirs \
1831 /bsd43/usr/lib/cmplrs/cc \
1832 /usr/cross64/usr/bin \
1833 /usr/lib/cmplrs/cc \
1834 /sysv/usr/lib/cmplrs/cc \
1835 /svr4/usr/lib/cmplrs/cc \
1839 for dir in $test_dirs; do
1840 if test -x $dir/as$build_exeext; then
1841 gcc_cv_as=$dir/as$build_exeext
1846 case $in_tree_gas in
1848 AC_MSG_RESULT("newly built gas")
1851 AC_MSG_RESULT($gcc_cv_as)
1855 # Identify the linker which will work hand-in-glove with the newly
1856 # built GCC, so that we can examine its features. This is the linker
1857 # which will be driven by the driver program.
1859 # If build != host, and we aren't building gas in-tree, we identify a
1860 # build->target linker and hope that it will have the same features
1861 # as the host->target linker we'll be using.
1862 AC_MSG_CHECKING(what linker to use)
1865 gcc_cv_gld_major_version=
1866 gcc_cv_gld_minor_version=
1867 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1868 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1869 if test -x "$DEFAULT_LINKER"; then
1870 gcc_cv_ld="$DEFAULT_LINKER"
1871 elif test -x collect-ld$build_exeext; then
1872 # Build using linker in the current directory.
1873 gcc_cv_ld=./collect-ld$build_exeext
1874 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1875 && test -f ../ld/Makefile \
1876 && test x$build = x$host; then
1877 # Single tree build which includes ld. We want to prefer it
1878 # over whatever linker top-level may have detected, since
1879 # we'll use what we're building after installation anyway.
1881 in_tree_ld_is_elf=no
1882 if (grep 'EMUL = .*elf' ../ld/Makefile \
1883 || grep 'EMUL = .*linux' ../ld/Makefile \
1884 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1885 in_tree_ld_is_elf=yes
1887 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
1890 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1892 if test x$gcc_cv_gld_version != x; then
1897 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1898 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1900 rm -f collect-ld$build_exeext
1901 $LN_S ../ld/ld-new$build_exeext collect-ld$build_exeext 2>/dev/null
1902 elif test -x "$LD_FOR_TARGET"; then
1903 gcc_cv_ld="$LD_FOR_TARGET"
1904 elif test -x "$LD" && test x$host = x$target; then
1908 if test "x$gcc_cv_ld" = x; then
1909 # Search the same directories that the installed compiler will
1910 # search. Else we may find the wrong linker and lose. If we
1911 # do not find a suitable linker binary, then try the user's
1914 # Also note we have to check MD_EXEC_PREFIX before checking the
1915 # user's path. Unfortunately, there is no good way to get at the
1916 # value of MD_EXEC_PREFIX here. So we do a brute force search
1917 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1918 # to be fixed as part of the make/configure rewrite too.
1920 if test "x$exec_prefix" = xNONE; then
1921 if test "x$prefix" = xNONE; then
1922 test_prefix=/usr/local
1927 test_prefix=$exec_prefix
1930 # If the loop below does not find a linker, then use whatever
1931 # one we can find in the users's path. We are looking for a
1932 # ${build} -> ${target} linker.
1933 if test "x$program_prefix" != xNONE; then
1934 gcc_cv_ld=${program_prefix}ld$build_exeext
1935 elif test x$build != x$host && test x$build != x$target; then
1936 gcc_cv_ld=${target_noncanonical}-ld$build_exeext
1938 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$build_exeext
1941 if test x$host = x$build; then
1942 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1943 $test_prefix/libexec/gcc/$target_noncanonical \
1944 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1945 /usr/lib/gcc/$target_noncanonical \
1946 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1947 $test_prefix/$target_noncanonical/bin"
1952 if test x$build = x$target; then
1953 test_dirs="$test_dirs \
1958 /bsd43/usr/lib/cmplrs/cc \
1959 /usr/cross64/usr/bin \
1960 /usr/lib/cmplrs/cc \
1961 /sysv/usr/lib/cmplrs/cc \
1962 /svr4/usr/lib/cmplrs/cc \
1966 for dir in $test_dirs; do
1967 if test -x $dir/ld$build_exeext; then
1968 gcc_cv_ld=$dir/ld$build_exeext
1975 AC_MSG_RESULT("newly built ld")
1978 AC_MSG_RESULT($gcc_cv_ld)
1982 # Figure out what nm we will be using.
1983 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1984 AC_MSG_CHECKING(what nm to use)
1986 if test -x nm$build_exeext; then
1987 gcc_cv_nm=./nm$build_exeext
1988 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1989 && test -f ../binutils/Makefile; then
1990 # Single tree build which includes binutils.
1992 gcc_cv_nm=./nm$build_exeext
1993 rm -f nm$build_exeext
1994 $LN_S ../binutils/nm-new$build_exeext nm$build_exeext 2>/dev/null
1995 elif test "x$program_prefix" != xNONE; then
1996 gcc_cv_nm=${program_prefix}nm$build_exeext
1997 elif test x$build != x$host && test x$build != x$target; then
1998 gcc_cv_nm=${target_noncanonical}-nm$build_exeext
2000 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$build_exeext
2003 yes) AC_MSG_RESULT("newly built nm") ;;
2004 no) AC_MSG_RESULT($gcc_cv_nm) ;;
2007 # Figure out what objdump we will be using.
2008 AC_MSG_CHECKING(what objdump to use)
2010 if test -x objdump$build_exeext; then
2011 gcc_cv_objdump=./objdump$build_exeext
2012 elif test -f $gcc_cv_binutils_srcdir/configure.in \
2013 && test -f ../binutils/Makefile; then
2014 # Single tree build which includes binutils.
2016 gcc_cv_objdump=./objdump$build_exeext
2017 rm -f objdump$build_exeext
2018 $LN_S ../binutils/objdump$build_exeext objdump$build_exeext 2>/dev/null
2019 elif test "x$program_prefix" != xNONE; then
2020 gcc_cv_objdump=${program_prefix}objdump$build_exeext
2021 elif test x$build != x$host && test x$build != x$target; then
2022 gcc_cv_objdump=${target_noncanonical}-objdump$build_exeext
2024 gcc_cv_objdump=`echo objdump | \
2025 sed "${program_transform_name}"`$build_exeext
2027 case $in_tree_objdump in
2028 yes) AC_MSG_RESULT("newly built objdump") ;;
2029 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
2032 # Figure out what assembler alignment features are present.
2033 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
2037 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
2038 [Define if your assembler supports .balign and .p2align.])])
2040 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
2043 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
2044 [Define if your assembler supports specifying the maximum number
2045 of bytes to skip when using the GAS .p2align command.])])
2047 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
2049 [conftest_label1: .word 0
2051 conftest_label2: .word 0
2053 [if test x$gcc_cv_nm != x; then
2054 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
2055 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
2056 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
2058 else gcc_cv_as_subsection_m1=yes
2060 rm -f conftest.nm1 conftest.nm2
2062 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2063 [Define if your assembler supports .subsection and .subsection -1 starts
2064 emitting at the beginning of your section.])])
2066 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2069 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2071 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
2074 .NSUBSPA $CODE$,COMDAT],,
2075 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
2077 # .hidden needs to be supported in both the assembler and the linker,
2078 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2079 # This is irritatingly difficult to feature test for; we have to check the
2080 # date string after the version number. If we've got an in-tree
2081 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2083 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2084 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2089 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2090 [if test $in_tree_ld = yes ; then
2092 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2093 && test $in_tree_ld_is_elf = yes; then
2094 gcc_cv_ld_hidden=yes
2097 gcc_cv_ld_hidden=yes
2098 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2099 if echo "$ld_ver" | grep GNU > /dev/null; then
2101 ld_vers=`echo $ld_ver | sed -n \
2102 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2103 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2104 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2105 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2106 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2107 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2108 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2109 if test 0"$ld_date" -lt 20020404; then
2110 if test -n "$ld_date"; then
2111 # If there was date string, but was earlier than 2002-04-04, fail
2113 elif test -z "$ld_vers"; then
2114 # If there was no date string nor ld version number, something is wrong
2117 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2118 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2119 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2120 test -z "$ld_vers_patch" && ld_vers_patch=0
2121 if test "$ld_vers_major" -lt 2; then
2123 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2124 gcc_cv_ld_hidden="no"
2125 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2133 hppa64*-*-hpux* | ia64*-*-hpux*)
2134 gcc_cv_ld_hidden=yes
2142 libgcc_visibility=no
2143 AC_SUBST(libgcc_visibility)
2144 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
2145 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2146 libgcc_visibility=yes
2147 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2148 [Define if your assembler and linker support .hidden.])
2151 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2152 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2160 [# GAS versions before 2.11 do not support uleb128,
2161 # despite appearing to.
2162 # ??? There exists an elf-specific test that will crash
2163 # the assembler. Perhaps it's better to figure out whether
2164 # arbitrary sections are supported and try the test.
2165 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2166 if echo "$as_ver" | grep GNU > /dev/null; then
2168 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2169 as_major=`echo $as_ver | sed 's/\..*//'`
2170 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2172 if test $as_major -eq 2 && test $as_minor -lt 11
2174 else gcc_cv_as_leb128=yes
2177 [AC_DEFINE(HAVE_AS_LEB128, 1,
2178 [Define if your assembler supports .sleb128 and .uleb128.])])
2180 # GAS versions up to and including 2.11.0 may mis-optimize
2182 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2190 .section .eh_frame,"aw",@progbits
2192 .4byte .LECIE1-.LSCIE1
2206 .4byte .LEFDE1-.LASFDE1
2208 .4byte .LASFDE1-__FRAME_BEGIN__
2216 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2217 cat > conftest.lit <<EOF
2218 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2219 0010 01000000 12000000 18000000 00000000 ................
2220 0020 08000000 04080000 0044 .........D @&t@
2222 cat > conftest.big <<EOF
2223 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2224 0010 00000001 00000012 00000018 00000000 ................
2225 0020 00000008 04000000 0844 .........D @&t@
2227 # If the assembler didn't choke, and we can objdump,
2228 # and we got the correct data, then succeed.
2229 if test x$gcc_cv_objdump != x \
2230 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2231 | tail -3 > conftest.got \
2232 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2233 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2235 gcc_cv_as_eh_frame=yes
2236 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2237 gcc_cv_as_eh_frame=buggy
2239 # Uh oh, what do we do now?
2240 gcc_cv_as_eh_frame=no
2243 if test $gcc_cv_as_eh_frame = buggy; then
2244 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2245 [Define if your assembler mis-optimizes .eh_frame data.])
2248 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2249 [elf,2,12,0], [--fatal-warnings],
2250 [.section .rodata.str, "aMS", @progbits, 1])
2251 if test $gcc_cv_as_shf_merge = no; then
2252 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2253 [elf,2,12,0], [--fatal-warnings],
2254 [.section .rodata.str, "aMS", %progbits, 1])
2256 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2257 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2258 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2260 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2261 [elf,2,15,91], [--fatal-warnings],
2262 [.section .text,"axG",@progbits,.foo,comdat])
2263 if test $gcc_cv_as_comdat_group = yes; then
2264 gcc_cv_as_comdat_group_percent=no
2266 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2267 [elf,2,15,91], [--fatal-warnings],
2268 [.section .text,"axG",%progbits,.foo,comdat])
2270 AC_DEFINE_UNQUOTED(HAVE_GAS_COMDAT_GROUP,
2271 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2272 [Define 0/1 if your assembler supports COMDAT group.])
2274 # Thread-local storage - the check is heavily parametrized.
2283 .section ".tdata","awT",@progbits
2286 ldq $27,__tls_get_addr($29) !literal!1
2287 lda $16,foo($29) !tlsgd!1
2288 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2289 ldq $27,__tls_get_addr($29) !literal!2
2290 lda $16,foo($29) !tlsldm!2
2291 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2292 ldq $1,foo($29) !gotdtprel
2293 ldah $2,foo($29) !dtprelhi
2294 lda $3,foo($2) !dtprello
2295 lda $4,foo($29) !dtprel
2296 ldq $1,foo($29) !gottprel
2297 ldah $2,foo($29) !tprelhi
2298 lda $3,foo($2) !tprello
2299 lda $4,foo($29) !tprel'
2302 tls_as_opt=--fatal-warnings
2306 .section ".tdata","awT",@progbits
2315 .section ".tdata","awT",@progbits
2319 leal foo@TLSGD(,%ebx,1), %eax
2320 leal foo@TLSLDM(%ebx), %eax
2321 leal foo@DTPOFF(%eax), %edx
2322 movl foo@GOTTPOFF(%ebx), %eax
2323 subl foo@GOTTPOFF(%ebx), %eax
2324 addl foo@GOTNTPOFF(%ebx), %eax
2325 movl foo@INDNTPOFF, %eax
2326 movl $foo@TPOFF, %eax
2327 subl $foo@TPOFF, %eax
2328 leal foo@NTPOFF(%ecx), %eax'
2331 tls_as_opt=--fatal-warnings
2335 .section ".tdata","awT",@progbits
2339 leaq foo@TLSGD(%rip), %rdi
2340 leaq foo@TLSLD(%rip), %rdi
2341 leaq foo@DTPOFF(%rax), %rdx
2342 movq foo@GOTTPOFF(%rip), %rax
2343 movq $foo@TPOFF, %rax'
2346 tls_as_opt=--fatal-warnings
2350 .section ".tdata","awT",@progbits
2353 addl r16 = @ltoff(@dtpmod(foo#)), gp
2354 addl r17 = @ltoff(@dtprel(foo#)), gp
2355 addl r18 = @ltoff(@tprel(foo#)), gp
2356 addl r19 = @dtprel(foo#), gp
2357 adds r21 = @dtprel(foo#), r13
2358 movl r23 = @dtprel(foo#)
2359 addl r20 = @tprel(foo#), gp
2360 adds r22 = @tprel(foo#), r13
2361 movl r24 = @tprel(foo#)'
2364 tls_as_opt=--fatal-warnings
2368 .section .tdata,"awT",@progbits
2372 addiu $4, $28, %tlsgd(x)
2373 addiu $4, $28, %tlsldm(x)
2374 lui $4, %dtprel_hi(x)
2375 addiu $4, $4, %dtprel_lo(x)
2376 lw $4, %gottprel(x)($28)
2377 lui $4, %tprel_hi(x)
2378 addiu $4, $4, %tprel_lo(x)'
2381 tls_as_opt='-32 --fatal-warnings'
2385 .section ".tdata","awT",@progbits
2393 addi 3,31,ld0@got@tlsgd
2395 addi 3,31,x1@got@tlsld
2398 addis 9,3,x2@dtprel@ha
2399 addi 9,9,x2@dtprel@l
2400 lwz 9,x3@got@tprel(31)
2403 addis 9,2,x2@tprel@ha
2404 addi 9,9,x2@tprel@l'
2407 tls_as_opt="-a32 --fatal-warnings"
2411 .section ".tdata","awT",@progbits
2419 addi 3,2,ld0@got@tlsgd
2425 addi 3,2,x1@got@tlsld
2431 addis 9,3,x2@dtprel@ha
2432 addi 9,9,x2@dtprel@l
2435 ld 9,x3@got@dtprel(2)
2441 tls_as_opt="-a64 --fatal-warnings"
2445 .section ".tdata","awT",@progbits
2454 l %r1,foo@GOTNTPOFF(%r12)
2455 l %r1,0(%r1):tls_load:foo
2456 bas %r14,0(%r1,%r13):tls_gdcall:foo
2457 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2460 tls_as_opt="-m31 --fatal-warnings"
2464 .section ".tdata","awT",@progbits
2472 lg %r1,foo@GOTNTPOFF(%r12)
2473 larl %r1,foo@INDNTPOFF
2474 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2475 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2478 tls_as_opt="-m64 -Aesame --fatal-warnings"
2480 sh-*-* | sh[34]-*-*)
2482 .section ".tdata","awT",@progbits
2492 tls_as_opt=--fatal-warnings
2496 sparc*-sun-solaris2.*)
2503 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2505 .section ".tdata",#alloc,#write,#tls
2508 sethi %tgd_hi22(foo), %o0
2509 add %o0, %tgd_lo10(foo), %o1
2510 add %l7, %o1, %o0, %tgd_add(foo)
2511 call __tls_get_addr, %tgd_call(foo)
2512 sethi %tldm_hi22(foo), %l1
2513 add %l1, %tldm_lo10(foo), %l2
2514 add %l7, %l2, %o0, %tldm_add(foo)
2515 call __tls_get_addr, %tldm_call(foo)
2516 sethi %tldo_hix22(foo), %l3
2517 xor %l3, %tldo_lox10(foo), %l4
2518 add %o0, %l4, %l5, %tldo_add(foo)
2519 sethi %tie_hi22(foo), %o3
2520 add %o3, %tie_lo10(foo), %o3
2521 ld [%l7 + %o3], %o2, %tie_ld(foo)
2522 add %g7, %o2, %o4, %tie_add(foo)
2523 sethi %tle_hix22(foo), %l1
2524 xor %l1, %tle_lox10(foo), %o5
2525 ld [%g7 + %o5], %o1'
2530 .section ".tdata","awT",@progbits
2533 sethi %tgd_hi22(foo), %o0
2534 add %o0, %tgd_lo10(foo), %o1
2535 add %l7, %o1, %o0, %tgd_add(foo)
2536 call __tls_get_addr, %tgd_call(foo)
2537 sethi %tldm_hi22(foo), %l1
2538 add %l1, %tldm_lo10(foo), %l2
2539 add %l7, %l2, %o0, %tldm_add(foo)
2540 call __tls_get_addr, %tldm_call(foo)
2541 sethi %tldo_hix22(foo), %l3
2542 xor %l3, %tldo_lox10(foo), %l4
2543 add %o0, %l4, %l5, %tldo_add(foo)
2544 sethi %tie_hi22(foo), %o3
2545 add %o3, %tie_lo10(foo), %o3
2546 ld [%l7 + %o3], %o2, %tie_ld(foo)
2547 add %g7, %o2, %o4, %tie_add(foo)
2548 sethi %tle_hix22(foo), %l1
2549 xor %l1, %tle_lox10(foo), %o5
2550 ld [%g7 + %o5], %o1'
2553 tls_as_opt="-32 --fatal-warnings"
2558 if test -z "$tls_first_major"; then
2559 : # If we don't have a check, assume no support.
2561 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2562 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2563 [AC_DEFINE(HAVE_AS_TLS, 1,
2564 [Define if your assembler supports thread-local storage.])])
2567 # Target-specific assembler checks.
2569 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2570 gcc_cv_ld_static_dynamic=no
2571 if test $in_tree_ld = yes ; then
2572 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2573 gcc_cv_ld_static_dynamic=yes
2575 elif test x$gcc_cv_ld != x; then
2576 # Check if linker supports -Bstatic/-Bdynamic option
2577 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2578 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2579 gcc_cv_ld_static_dynamic=yes
2582 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2583 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2584 [Define if your linker supports -Bstatic/-Bdynamic option.])
2586 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2588 if test x"$demangler_in_ld" = xyes; then
2589 AC_MSG_CHECKING(linker --demangle support)
2590 gcc_cv_ld_demangle=no
2591 if test $in_tree_ld = yes; then
2592 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2593 gcc_cv_ld_demangle=yes
2595 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2596 # Check if the GNU linker supports --demangle option
2597 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2598 gcc_cv_ld_demangle=yes
2601 if test x"$gcc_cv_ld_demangle" = xyes; then
2602 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2603 [Define if your linker supports --demangle option.])
2605 AC_MSG_RESULT($gcc_cv_ld_demangle)
2609 # All TARGET_ABI_OSF targets.
2610 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2611 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2612 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2615 extbl $3, $2, $3 !lituse_bytoff!1
2616 ldq $2, a($29) !literal!1
2617 ldq $4, b($29) !literal!2
2618 ldq_u $3, 0($2) !lituse_base!1
2619 ldq $27, f($29) !literal!5
2620 jsr $26, ($27), f !lituse_jsr!5
2621 ldah $29, 0($26) !gpdisp!3
2622 lda $0, c($29) !gprel
2623 ldah $1, d($29) !gprelhigh
2624 lda $1, d($1) !gprellow
2625 lda $29, 0($29) !gpdisp!3],,
2626 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2627 [Define if your assembler supports explicit relocations.])])
2631 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2632 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2633 [-no-mul-bug-abort], [.text],,
2634 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2635 [Define if your assembler supports the -no-mul-bug-abort option.])])
2639 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2640 [.register %g2, #scratch],,
2641 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2642 [Define if your assembler supports .register.])])
2644 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2646 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2647 [Define if your assembler supports -relax option.])])
2649 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2650 gcc_cv_as_sparc_ua_pcrel,,
2658 .uaword %r_disp32(foo)],
2659 [if test x$gcc_cv_ld != x \
2660 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2661 gcc_cv_as_sparc_ua_pcrel=yes
2664 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2665 [Define if your assembler and linker support unaligned PC relative relocs.])
2667 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2668 gcc_cv_as_sparc_ua_pcrel_hidden,,
2673 .uaword %r_disp32(foo)
2674 .byte 0x32, 0x33, 0x34
2679 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2680 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2681 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2682 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2683 if $gcc_cv_objdump -R conftest 2> /dev/null \
2684 | grep 'DISP32' > /dev/null 2>&1; then
2687 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2691 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2692 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2693 ]) # unaligned pcrel relocs
2695 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2696 gcc_cv_as_sparc_offsetable_lo10,,
2699 or %g1, %lo(ab) + 12, %g1
2700 or %g1, %lo(ab + 12), %g1],
2701 [if test x$gcc_cv_objdump != x \
2702 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2703 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2704 gcc_cv_as_sparc_offsetable_lo10=yes
2706 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2707 [Define if your assembler supports offsetable %lo().])])
2711 i[34567]86-*-* | x86_64-*-*)
2714 cygwin* | pe | mingw32*)
2715 # Used for DWARF 2 in PE
2716 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2717 gcc_cv_as_ix86_pe_secrel32,
2723 [if test x$gcc_cv_ld != x \
2724 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2725 gcc_cv_as_ix86_pe_secrel32=yes
2728 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2729 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2733 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2734 gcc_cv_as_ix86_filds_fists,
2735 [2,9,0],, [filds mem; fists mem],,
2736 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2737 [Define if your assembler uses the new HImode fild and fist notation.])])
2739 gcc_GAS_CHECK_FEATURE([cmov syntax],
2740 gcc_cv_as_ix86_cmov_sun_syntax,,,
2741 [cmovl.l %edx, %eax],,
2742 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2743 [Define if your assembler supports the Sun syntax for cmov.])])
2745 # This one is used unconditionally by i386.[ch]; it is to be defined
2746 # to 1 if the feature is present, 0 otherwise.
2747 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2748 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2754 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2755 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2756 [Define true if the assembler supports '.long foo@GOTOFF'.])
2760 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2761 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2763 addl r15 = @ltoffx(x#), gp
2765 ld8.mov r16 = [[r15]], x#],,
2766 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2767 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2773 *-*-aix*) conftest_s=' .machine "pwr5"
2777 gcc_GAS_CHECK_FEATURE([.machine directive support],
2778 gcc_cv_as_machine_directive,,,
2779 [ .machine ppc7400])
2780 if test x$gcc_cv_as_machine_directive != xyes; then
2781 echo "*** This target requires an assembler supporting \".machine\"" >&2
2782 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2783 test x$build = x$target && exit 1
2787 *) conftest_s=' .machine power4
2792 gcc_GAS_CHECK_FEATURE([mfcr field support],
2793 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2795 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2796 [Define if your assembler supports mfcr field.])])
2799 *-*-aix*) conftest_s=' .machine "pwr5"
2802 *) conftest_s=' .machine power5
2807 gcc_GAS_CHECK_FEATURE([popcntb support],
2808 gcc_cv_as_powerpc_popcntb, [2,17,0],,
2810 [AC_DEFINE(HAVE_AS_POPCNTB, 1,
2811 [Define if your assembler supports popcntb field.])])
2816 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2817 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2818 [ lw $4,%gp_rel(foo)($4)],,
2819 [if test x$target_cpu_default = x
2820 then target_cpu_default=MASK_EXPLICIT_RELOCS
2821 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2824 if test x$gas_flag = xyes \
2825 || test x"$host" != x"$build" \
2826 || test ! -x "$gcc_cv_as" \
2827 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2830 echo "*** This configuration requires the GNU assembler" >&2
2835 # ??? Not all targets support dwarf2 debug_line, even within a version
2836 # of gas. Moreover, we need to emit a valid instruction to trigger any
2837 # info to the output file. So, as supported targets are added to gas 2.11,
2838 # add some instruction here to (also) show we expect this might work.
2839 # ??? Once 2.11 is released, probably need to add first known working
2840 # version to the per-target configury.
2842 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2843 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2844 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2847 ia64*-*-* | s390*-*-*)
2854 if test x"$insn" != x; then
2856 .file 1 \"conftest.s\"
2859 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2860 gcc_cv_as_dwarf2_debug_line,
2861 [elf,2,11,0],, [$conftest_s],
2862 [if test x$gcc_cv_objdump != x \
2863 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
2864 | grep debug_line > /dev/null 2>&1; then
2865 gcc_cv_as_dwarf2_debug_line=yes
2868 # The .debug_line file table must be in the exact order that
2869 # we specified the files, since these indices are also used
2870 # by DW_AT_decl_file. Approximate this test by testing if
2871 # the assembler bitches if the same index is assigned twice.
2872 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2873 gcc_cv_as_dwarf2_file_buggy,,,
2877 if test $gcc_cv_as_dwarf2_debug_line = yes \
2878 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2879 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2880 [Define if your assembler supports dwarf2 .file/.loc directives,
2881 and preserves file table indices exactly as given.])
2884 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2885 gcc_cv_as_gdwarf2_flag,
2886 [elf,2,11,0], [--gdwarf2], [$insn],,
2887 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2888 [Define if your assembler supports the --gdwarf2 option.])])
2890 gcc_GAS_CHECK_FEATURE([--gstabs option],
2891 gcc_cv_as_gstabs_flag,
2892 [elf,2,11,0], [--gstabs], [$insn],
2893 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2894 # and warns about it, but still exits successfully. So check for
2896 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2898 else gcc_cv_as_gstabs_flag=yes
2900 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2901 [Define if your assembler supports the --gstabs option.])])
2904 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2905 gcc_cv_ld_ro_rw_mix=unknown
2906 if test $in_tree_ld = yes ; then
2907 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2908 && test $in_tree_ld_is_elf = yes; then
2909 gcc_cv_ld_ro_rw_mix=read-write
2911 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2912 echo '.section myfoosect, "a"' > conftest1.s
2913 echo '.section myfoosect, "aw"' > conftest2.s
2914 echo '.byte 1' >> conftest2.s
2915 echo '.section myfoosect, "a"' > conftest3.s
2916 echo '.byte 0' >> conftest3.s
2917 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2918 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2919 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2920 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2921 conftest2.o conftest3.o > /dev/null 2>&1; then
2922 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2923 | sed -e '/myfoosect/!d' -e N`
2924 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2925 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2926 gcc_cv_ld_ro_rw_mix=read-only
2928 gcc_cv_ld_ro_rw_mix=read-write
2933 rm -f conftest.* conftest[123].*
2936 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2937 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2938 [Define if your linker links a mix of read-only
2939 and read-write sections into a read-write section.])
2941 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2943 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2944 gcc_cv_ld_eh_frame_hdr=no
2945 if test $in_tree_ld = yes ; then
2946 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2947 && test $in_tree_ld_is_elf = yes; then
2948 gcc_cv_ld_eh_frame_hdr=yes
2950 elif test x$gcc_cv_ld != x; then
2951 # Check if linker supports --eh-frame-hdr option
2952 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2953 gcc_cv_ld_eh_frame_hdr=yes
2956 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
2957 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2958 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2959 [Define if your linker supports --eh-frame-hdr option.])
2961 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2963 AC_MSG_CHECKING(linker position independent executable support)
2965 if test $in_tree_ld = yes ; then
2966 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2967 && test $in_tree_ld_is_elf = yes; then
2970 elif test x$gcc_cv_ld != x; then
2971 # Check if linker supports -pie option
2972 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2976 if test x"$gcc_cv_ld_pie" = xyes; then
2977 AC_DEFINE(HAVE_LD_PIE, 1,
2978 [Define if your linker supports -pie option.])
2980 AC_MSG_RESULT($gcc_cv_ld_pie)
2986 AC_CACHE_CHECK(linker --as-needed support,
2987 gcc_cv_ld_as_needed,
2988 [gcc_cv_ld_as_needed=no
2989 if test $in_tree_ld = yes ; then
2990 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2991 && test $in_tree_ld_is_elf = yes; then
2992 gcc_cv_ld_as_needed=yes
2994 elif test x$gcc_cv_ld != x; then
2995 # Check if linker supports --as-needed and --no-as-needed options
2996 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2997 gcc_cv_ld_as_needed=yes
3001 if test x"$gcc_cv_ld_as_needed" = xyes; then
3002 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
3003 [Define if your linker supports --as-needed and --no-as-needed options.])
3007 powerpc64*-*-linux*)
3008 AC_CACHE_CHECK(linker support for omitting dot symbols,
3009 gcc_cv_ld_no_dot_syms,
3010 [gcc_cv_ld_no_dot_syms=no
3011 if test $in_tree_ld = yes ; then
3012 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
3013 gcc_cv_ld_no_dot_syms=yes
3015 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
3016 cat > conftest1.s <<EOF
3020 cat > conftest2.s <<EOF
3021 .section ".opd","aw"
3026 .quad .LEfoo,.TOC.@tocbase,0
3032 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
3033 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
3034 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
3035 gcc_cv_ld_no_dot_syms=yes
3037 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3040 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3041 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3042 [Define if your PowerPC64 linker only needs function descriptor syms.])
3047 AC_CACHE_CHECK(linker --sysroot support,
3049 [gcc_cv_ld_sysroot=no
3050 if test $in_tree_ld = yes ; then
3051 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
3052 gcc_cv_ld_sysroot = yes
3054 elif test x$gcc_cv_ld != x; then
3055 if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
3056 gcc_cv_ld_sysroot=yes
3059 if test x"$gcc_cv_ld_sysroot" = xyes; then
3060 AC_DEFINE(HAVE_LD_SYSROOT, 1,
3061 [Define if your linker supports --sysroot.])
3064 if test x$with_sysroot = x && test x$host = x$target \
3065 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
3066 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3067 [Define to PREFIX/include if cpp should also search that directory.])
3070 # Find out what GC implementation we want, or may, use.
3072 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3080 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3083 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3088 echo "Using $GGC for garbage collection."
3090 # Use the system's zlib library.
3092 zlibinc="-I\$(srcdir)/../zlib"
3093 AC_ARG_WITH(system-zlib,
3094 [ --with-system-zlib use installed libz],
3101 dnl Very limited version of automake's enable-maintainer-mode
3103 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3104 dnl maintainer-mode is disabled by default
3105 AC_ARG_ENABLE(maintainer-mode,
3106 [ --enable-maintainer-mode
3107 enable make rules and dependencies not useful
3108 (and sometimes confusing) to the casual installer],
3109 maintainer_mode=$enableval,
3112 AC_MSG_RESULT($maintainer_mode)
3114 if test "$maintainer_mode" = "yes"; then
3125 # Make empty files to contain the specs and options for each language.
3126 # Then add #include lines to for a compiler that has specs and/or options.
3131 for subdir in . $subdirs
3133 if test -f $srcdir/$subdir/lang.opt; then
3134 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3136 if test -f $srcdir/$subdir/lang-specs.h; then
3137 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3139 if test -f $srcdir/$subdir/$subdir-tree.def; then
3140 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3144 # These (without "all_") are set in each config-lang.in.
3145 # `language' must be a single word so is spelled singularly.
3150 all_outputs='Makefile gccbug mklibgcc libada-mk'
3151 # List of language makefile fragments.
3153 # List of language subdirectory makefiles. Deprecated.
3155 # Files for gengtype
3156 all_gtfiles="$target_gtfiles"
3157 # Files for gengtype with language
3158 all_gtfiles_files_langs=
3159 all_gtfiles_files_files=
3161 # Add the language fragments.
3162 # Languages are added via two mechanisms. Some information must be
3163 # recorded in makefile variables, these are defined in config-lang.in.
3164 # We accumulate them and plug them into the main Makefile.
3165 # The other mechanism is a set of hooks for each of the main targets
3166 # like `clean', `install', etc.
3168 language_hooks="Make-hooks"
3178 . ${srcdir}/$s/config-lang.in
3179 if test "x$language" = x
3181 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3184 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3185 if test -f ${srcdir}/$s/Makefile.in
3186 then all_lang_makefiles="$s/Makefile"
3188 all_languages="$all_languages $language"
3189 if test "x$boot_language" = xyes
3191 all_boot_languages="$all_boot_languages $language"
3193 all_compilers="$all_compilers $compilers"
3194 all_stagestuff="$all_stagestuff $stagestuff"
3195 all_outputs="$all_outputs $outputs"
3196 all_gtfiles="$all_gtfiles $gtfiles"
3199 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3200 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3204 # Pick up gtfiles for c
3207 . ${srcdir}/c-config-lang.in
3208 all_gtfiles="$all_gtfiles $gtfiles"
3211 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3212 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3216 for language in $all_languages
3218 check_languages="$check_languages check-$language"
3221 # We link each language in with a set of hooks, reached indirectly via
3226 target_list="all.build all.cross start.encap rest.encap tags \
3227 install-normal install-common install-man \
3228 uninstall info man srcextra srcman srcinfo \
3229 mostlyclean clean distclean maintainer-clean \
3230 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3231 for t in $target_list
3234 for lang in $all_languages
3238 echo "lang.$t: $x" >> Make-hooks
3247 echo "dir ." > .gdbinit
3248 echo "dir ${srcdir}" >> .gdbinit
3249 if test x$gdb_needs_out_file_path = xyes
3251 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3253 if test "x$subdirs" != x; then
3256 echo "dir ${srcdir}/$s" >> .gdbinit
3259 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3261 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3262 # absolute path for gcc_tooldir based on inserting the number of up-directory
3263 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3264 # $(libsubdir)/@(unlibsubdir) based path.
3265 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3266 # make and thus we'd get different behavior depending on where we built the
3268 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3269 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3271 changequote(<<, >>)dnl
3272 # An explanation of the sed strings:
3273 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3274 # -e 's|/$||' match a trailing forward slash and eliminates it
3275 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3276 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3278 # (*) Note this pattern overwrites the first character of the string
3279 # with a forward slash if one is not already present. This is not a
3280 # problem because the exact names of the sub-directories concerned is
3281 # unimportant, just the number of them matters.
3283 # The practical upshot of these patterns is like this:
3285 # prefix exec_prefix result
3286 # ------ ----------- ------
3288 # /foo/ /foo/bar ../
3289 # /foo /foo/bar/ ../
3290 # /foo/ /foo/bar/ ../
3291 # /foo /foo/bar/ugg ../../
3294 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3295 changequote([, ])dnl
3297 AC_SUBST(gcc_tooldir)
3300 # Find a directory in which to install a shared libgcc.
3302 AC_ARG_ENABLE(version-specific-runtime-libs,
3303 [ --enable-version-specific-runtime-libs
3304 specify that runtime libraries should be
3305 installed in a compiler-specific directory])
3307 AC_ARG_WITH(slibdir,
3308 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3309 slibdir="$with_slibdir",
3310 if test "${enable_version_specific_runtime_libs+set}" = set; then
3311 slibdir='$(libsubdir)'
3312 elif test "$host" != "$target"; then
3313 slibdir='$(build_tooldir)/lib'
3319 objdir=`${PWDCMD-pwd}`
3322 # Substitute configuration variables
3325 AC_SUBST(all_boot_languages)
3326 AC_SUBST(all_compilers)
3327 AC_SUBST(all_gtfiles)
3328 AC_SUBST(all_gtfiles_files_langs)
3329 AC_SUBST(all_gtfiles_files_files)
3330 AC_SUBST(all_lang_makefrags)
3331 AC_SUBST(all_lang_makefiles)
3332 AC_SUBST(all_languages)
3333 AC_SUBST(all_stagestuff)
3334 AC_SUBST(build_exeext)
3335 AC_SUBST(build_install_headers_dir)
3336 AC_SUBST(build_xm_file_list)
3337 AC_SUBST(build_xm_include_list)
3338 AC_SUBST(build_xm_defines)
3339 AC_SUBST(check_languages)
3340 AC_SUBST(cc_set_by_configure)
3341 AC_SUBST(quoted_cc_set_by_configure)
3342 AC_SUBST(cpp_install_dir)
3343 AC_SUBST(xmake_file)
3344 AC_SUBST(tmake_file)
3345 AC_SUBST(extra_gcc_objs)
3346 AC_SUBST(extra_headers_list)
3347 AC_SUBST(extra_objs)
3348 AC_SUBST(extra_parts)
3349 AC_SUBST(extra_passes)
3350 AC_SUBST(extra_programs)
3351 AC_SUBST(float_h_file)
3352 AC_SUBST(gcc_config_arguments)
3353 AC_SUBST(gcc_gxx_include_dir)
3354 AC_SUBST(libstdcxx_incdir)
3355 AC_SUBST(host_exeext)
3356 AC_SUBST(host_xm_file_list)
3357 AC_SUBST(host_xm_include_list)
3358 AC_SUBST(host_xm_defines)
3359 AC_SUBST(out_host_hook_obj)
3361 AC_SUBST(lang_opt_files)
3362 AC_SUBST(lang_specs_files)
3363 AC_SUBST(lang_tree_files)
3364 AC_SUBST(local_prefix)
3366 AC_SUBST(objc_boehm_gc)
3368 AC_SUBST(out_object_file)
3369 AC_SUBST(stage_prefix_set_by_configure)
3370 AC_SUBST(quoted_stage_prefix_set_by_configure)
3371 AC_SUBST(thread_file)
3372 AC_SUBST(tm_file_list)
3373 AC_SUBST(tm_include_list)
3374 AC_SUBST(tm_defines)
3375 AC_SUBST(tm_p_file_list)
3376 AC_SUBST(tm_p_include_list)
3377 AC_SUBST(xm_file_list)
3378 AC_SUBST(xm_include_list)
3379 AC_SUBST(xm_defines)
3380 AC_SUBST(c_target_objs)
3381 AC_SUBST(cxx_target_objs)
3382 AC_SUBST(target_cpu_default)
3384 AC_SUBST_FILE(language_hooks)
3387 if test x${build} = x${host} ; then
3388 if test x${host} = x${target} ; then
3389 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3391 echo "Links are now set up to build a cross-compiler" 1>&2
3392 echo " from ${host} to ${target}." 1>&2
3395 if test x${host} = x${target} ; then
3396 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3397 echo " for ${target}." 1>&2
3399 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3400 echo " from ${host} to ${target}." 1>&2
3404 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3405 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3407 # Configure the subdirectories
3408 # AC_CONFIG_SUBDIRS($subdirs)
3410 # Create the Makefile
3411 # and configure language subdirectories
3412 AC_CONFIG_FILES($all_outputs)
3414 AC_CONFIG_COMMANDS([default],
3416 case ${CONFIG_HEADERS} in
3417 *auto-host.h:config.in*)
3420 # Make sure all the subdirs exist.
3421 for d in $subdirs doc build
3423 test -d $d || mkdir $d
3425 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3426 # bootstrapping and the installation procedure can still use
3427 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3428 # FLAGS_TO_PASS has been modified to solve the problem there.
3429 # This is virtually a duplicate of what happens in configure.lang; we do
3430 # an extra check to make sure this only happens if ln -s can be used.
3433 for d in ${subdirs} ; do
3434 STARTDIR=`${PWDCMD-pwd}`
3436 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3439 $LN_S ../$t $t 2>/dev/null
3446 [subdirs='$subdirs'])