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_chacking=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_chacking= ;
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$ac_assert_checking != x ; then
466 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
467 [Define if you want assertions enabled. This is a cheap check.])
469 if test x$ac_runtime_checking != x ; then
470 AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1,
471 [Define if you want runtime assertions enabled. This is a cheap check.])
473 if test x$ac_tree_checking != x ; then
474 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
475 [Define if you want all operations on trees (the basic data
476 structure of the front ends) to be checked for dynamic type safety
477 at runtime. This is moderately expensive. The tree browser debugging
478 routines will also be enabled by this option.
480 TREEBROWSER=tree-browser.o
482 AC_SUBST(TREEBROWSER)
483 if test x$ac_rtl_checking != x ; then
484 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
485 [Define if you want all operations on RTL (the basic data structure
486 of the optimizer and back end) to be checked for dynamic type safety
487 at runtime. This is quite expensive.])
489 if test x$ac_rtlflag_checking != x ; then
490 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
491 [Define if you want RTL flag accesses to be checked against the RTL
492 codes that are supported for each access macro. This is relatively
495 if test x$ac_gc_checking != x ; then
496 AC_DEFINE(ENABLE_GC_CHECKING, 1,
497 [Define if you want the garbage collector to do object poisoning and
498 other memory allocation checks. This is quite expensive.])
500 if test x$ac_gc_always_collect != x ; then
501 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
502 [Define if you want the garbage collector to operate in maximally
503 paranoid mode, validating the entire heap and collecting garbage at
504 every opportunity. This is extremely expensive.])
506 if test x$ac_fold_checking != x ; then
507 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
508 [Define if you want fold checked that it never destructs its argument.
509 This is quite expensive.])
511 valgrind_path_defines=
514 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
515 dnl # an if statement. This was the source of very frustrating bugs
516 dnl # in converting to autoconf 2.5x!
517 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
519 if test x$ac_valgrind_checking != x ; then
520 # It is certainly possible that there's valgrind but no valgrind.h.
521 # GCC relies on making annotations so we must have both.
522 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
524 [#include <valgrind/memcheck.h>
525 #ifndef VALGRIND_DISCARD
526 #error VALGRIND_DISCARD not defined
528 [gcc_cv_header_valgrind_memcheck_h=yes],
529 [gcc_cv_header_valgrind_memcheck_h=no])
530 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
531 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
533 [#include <memcheck.h>
534 #ifndef VALGRIND_DISCARD
535 #error VALGRIND_DISCARD not defined
537 [gcc_cv_header_memcheck_h=yes],
538 gcc_cv_header_memcheck_h=no)
539 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
540 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
541 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
542 if test "x$valgrind_path" = "x" \
543 || (test $have_valgrind_h = no \
544 && test $gcc_cv_header_memcheck_h = no \
545 && test $gcc_cv_header_valgrind_memcheck_h = no); then
546 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
548 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
549 valgrind_command="$valgrind_path -q"
550 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
551 [Define if you want to run subprograms and generated programs
552 through valgrind (a memory checker). This is extremely expensive.])
553 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
554 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
555 [Define if valgrind's valgrind/memcheck.h header is installed.])
557 if test $gcc_cv_header_memcheck_h = yes; then
558 AC_DEFINE(HAVE_MEMCHECK_H, 1,
559 [Define if valgrind's memcheck.h header is installed.])
562 AC_SUBST(valgrind_path_defines)
563 AC_SUBST(valgrind_command)
565 AC_ARG_ENABLE(mapped-location,
566 [ --enable-mapped-location location_t is fileline integer cookie],,
567 enable_mapped_location=no)
569 if test "$enable_mapped_location" = yes ; then
570 AC_DEFINE(USE_MAPPED_LOCATION, 1,
571 [Define if location_t is fileline integer cookie.])
574 # Enable code coverage collection
575 AC_ARG_ENABLE(coverage,
576 [ --enable-coverage[=LEVEL]
577 enable compiler's code coverage collection.
578 Use to measure compiler performance and locate
579 unused parts of the compiler. With LEVEL, specify
580 optimization. Values are opt, noopt,
582 [case "${enableval}" in
584 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
587 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
590 # a.k.a. --disable-coverage
594 AC_MSG_ERROR(unknown coverage setting $enableval)
598 AC_SUBST(coverage_flags)
600 AC_ARG_ENABLE(gather-detailed-mem-stats,
601 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
602 [enable_gather_detailed_mem_stats=no])
603 if test x$enable_gather_detailed_mem_stats = xyes ; then
604 AC_DEFINE(GATHER_STATISTICS, 1,
605 [Define to enable detailed memory allocation stats gathering.])
608 # -------------------------------
609 # Miscenalleous configure options
610 # -------------------------------
614 [ --with-stabs arrange to use stabs instead of host debug format],
618 # Determine whether or not multilibs are enabled.
619 AC_ARG_ENABLE(multilib,
620 [ --enable-multilib enable library support for multiple ABIs],
621 [], [enable_multilib=yes])
622 AC_SUBST(enable_multilib)
624 # Enable __cxa_atexit for C++.
625 AC_ARG_ENABLE(__cxa_atexit,
626 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
630 # Pass with no value to take the default
631 # Pass with a value to specify a thread package
632 AC_ARG_ENABLE(threads,
633 [ --enable-threads enable thread usage for target GCC
634 --enable-threads=LIB use LIB thread package for target GCC],,
637 AC_ARG_ENABLE(objc-gc,
638 [ --enable-objc-gc enable the use of Boehm's garbage collector with
639 the GNU Objective-C runtime],
640 if test x$enable_objc_gc = xno; then
648 [ --with-dwarf2 force the default debug format to be DWARF 2],
649 dwarf2="$with_dwarf2",
652 AC_ARG_ENABLE(shared,
653 [ --disable-shared don't provide a shared libgcc],
655 case $enable_shared in
659 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
660 for pkg in $enableval; do
661 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
668 ], [enable_shared=yes])
669 AC_SUBST(enable_shared)
672 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
674 case ${with_sysroot} in
675 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
676 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
679 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
680 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
682 if test "x$exec_prefix" = xNONE; then
683 if test "x$prefix" = xNONE; then
684 test_prefix=/usr/local
689 test_prefix=$exec_prefix
691 case ${TARGET_SYSTEM_ROOT} in
692 "${test_prefix}"|"${test_prefix}/"*|\
693 '${exec_prefix}'|'${exec_prefix}/'*)
694 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
695 TARGET_SYSTEM_ROOT_DEFINE="$t"
700 TARGET_SYSTEM_ROOT_DEFINE=
701 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
703 AC_SUBST(TARGET_SYSTEM_ROOT)
704 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
705 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
707 # Build with intermodule optimisations
708 AC_ARG_ENABLE(intermodule,
709 [ --enable-intermodule build the compiler in one step],
710 [case ${enable_intermodule} in
711 yes) onestep="-onestep";;
717 # Sanity check enable_languages in case someone does not run the toplevel
718 # configure # script.
719 AC_ARG_ENABLE(languages,
720 [ --enable-languages=LIST specify which front-ends to build],
721 [case ,${enable_languages}, in
723 # go safe -- we cannot be much sure without the toplevel
725 # analysis of which target libs are present and usable
729 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
734 enable_languages=c,${enable_languages}
737 [enable_languages=c])
740 for lang in ${srcdir}/*/config-lang.in
743 # The odd quoting in the next line works around
744 # an apparent bug in bash 1.12 on linux.
746 ${srcdir}/[*]/config-lang.in) ;;
748 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
749 if test "x$lang_alias" = x
751 echo "$lang doesn't set \$language." 1>&2
754 case ",$enable_languages," in
756 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
764 # -------------------------
765 # Checks for other programs
766 # -------------------------
770 # Find some useful tools
772 # We need awk to create options.c and options.h.
773 # Bail out if it's missing.
775 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
783 # By default, the Darwin ranlib will not treat common symbols as
784 # definitions when building the archive table of contents. Other
785 # ranlibs do that; pass an option to the Darwin ranlib that makes
786 # it behave similarly.
792 AC_SUBST(ranlib_flags)
796 # See if cmp has --ignore-initial.
797 gcc_AC_PROG_CMP_IGNORE_INITIAL
799 # See if we have the mktemp command.
800 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
802 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
804 # See if makeinfo has been installed and is modern enough
805 # that we can use it.
806 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
807 [GNU texinfo.* \([0-9][0-9.]*\)],
809 if test $gcc_cv_prog_makeinfo_modern = no; then
810 MAKEINFO="$MISSING makeinfo"
812 *** Makeinfo is missing or too old.
813 *** Info documentation will not be built.])
820 # Is pod2man recent enough to regenerate manpages?
821 AC_MSG_CHECKING([for recent Pod::Man])
822 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
824 GENERATED_MANPAGES=generated-manpages
829 AC_SUBST(GENERATED_MANPAGES)
832 dnl Don't use AC_PROG_LEX; we insist on flex.
833 dnl LEXLIB is not useful in gcc.
834 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
837 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
839 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
840 # check for build == host before using them.
843 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
844 && test -d ../binutils ; then
845 NM='$(objdir)/../binutils/nm-new'
847 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
851 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
852 && test -d ../binutils ; then
853 AR='$(objdir)/../binutils/ar'
855 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
859 # --------------------
860 # Checks for C headers
861 # --------------------
863 AC_MSG_CHECKING(for GNU C library)
864 AC_CACHE_VAL(gcc_cv_glibc,
866 [#include <features.h>],[
867 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
868 #error Not a GNU C library system
872 AC_MSG_RESULT($gcc_cv_glibc)
873 if test $gcc_cv_glibc = yes; then
874 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
877 # Need to reject headers which give warnings, so that the -Werror bootstrap
878 # works later. *sigh* This needs to come before all header checks.
885 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
886 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
887 sys/resource.h sys/param.h sys/times.h sys/stat.h \
888 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
890 # Check for thread headers.
891 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
892 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
894 # These tests can't be done till we know if we have limits.h.
902 # Stage specific cflags for build.
908 stage1_cflags="-Wa,-J"
914 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
915 # sources; use -no-cpp-precomp to get to GNU cpp.
916 # Apple's GCC has bugs in designated initializer handling, so disable
918 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
921 AC_SUBST(stage1_cflags)
923 # These libraries may be used by collect2.
924 # We may need a special search path to get them linked.
925 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
927 for libs in '' -lld -lmld \
928 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
929 '-L/usr/lib/cmplrs/cc3.11 -lmld'
932 AC_TRY_LINK_FUNC(ldopen,
933 [gcc_cv_collect2_libs="$libs"; break])
936 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
937 case $gcc_cv_collect2_libs in
939 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
941 AC_SUBST(COLLECT2_LIBS)
943 # When building Ada code on Alpha, we need exc_resume which is usually in
944 # -lexc. So test for it.
947 AC_SEARCH_LIBS(exc_resume, exc)
950 AC_SUBST(GNAT_LIBEXC)
952 # Some systems put ldexp and frexp in libm instead of libc; assume
953 # they're both in the same place. jcf-dump needs them.
956 AC_SEARCH_LIBS(ldexp, m)
961 # Use <inttypes.h> only if it exists,
962 # doesn't clash with <sys/types.h>, and declares intmax_t.
963 AC_MSG_CHECKING(for inttypes.h)
964 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
966 [#include <sys/types.h>
967 #include <inttypes.h>],
969 [gcc_cv_header_inttypes_h=yes],
970 gcc_cv_header_inttypes_h=no)])
971 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
972 if test $gcc_cv_header_inttypes_h = yes; then
973 AC_DEFINE(HAVE_INTTYPES_H, 1,
974 [Define if you have a working <inttypes.h> header file.])
977 dnl Disabled until we have a complete test for buggy enum bitfields.
978 dnl gcc_AC_C_ENUM_BF_UNSIGNED
980 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
981 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
982 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
983 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
984 putchar_unlocked putc_unlocked)
985 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
986 sysconf strsignal getrusage nl_langinfo scandir alphasort \
987 gettimeofday mbstowcs wcswidth mmap mincore setlocale \
990 if test x$ac_cv_func_mbstowcs = xyes; then
991 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
992 [ AC_TRY_RUN([#include <stdlib.h>
998 gcc_cv_func_mbstowcs_works=yes,
999 gcc_cv_func_mbstowcs_works=no,
1000 gcc_cv_func_mbstowcs_works=yes)])
1001 if test x$gcc_cv_func_mbstowcs_works = xyes; then
1002 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
1003 [Define this macro if mbstowcs does not crash when its
1004 first argument is NULL.])
1008 AC_CHECK_TYPE(ssize_t, int)
1010 # Try to determine the array type of the second argument of getgroups
1011 # for the target system (int or gid_t).
1013 if test "${target}" = "${build}"; then
1014 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
1017 # This condition may need some tweaking. It should include all
1018 # targets where the array type of the second argument of getgroups
1019 # is int and the type of gid_t is not equivalent to int.
1020 *-*-sunos* | *-*-ultrix*)
1021 TARGET_GETGROUPS_T=int
1024 TARGET_GETGROUPS_T=gid_t
1028 AC_SUBST(TARGET_GETGROUPS_T)
1030 gcc_AC_FUNC_PRINTF_PTR
1031 gcc_AC_FUNC_MMAP_BLACKLIST
1035 # Under VMS, vfork works very differently than on Unix. The standard test
1036 # won't work, and it isn't easily adaptable. It makes more sense to
1038 ac_cv_func_vfork_works=yes
1044 # Until we have in-tree GNU iconv:
1046 AC_SUBST(LIBICONV_DEP)
1052 # We will need to find libiberty.h and ansidecl.h
1053 saved_CFLAGS="$CFLAGS"
1054 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1055 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd strsignal \
1056 strstr errno snprintf vsnprintf vasprintf malloc realloc calloc \
1057 free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
1058 #include "ansidecl.h"
1059 #include "system.h"])
1061 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1062 #include "ansidecl.h"
1064 #ifdef HAVE_SYS_RESOURCE_H
1065 #include <sys/resource.h>
1070 #include "ansidecl.h"
1072 #ifdef HAVE_SYS_RESOURCE_H
1073 #include <sys/resource.h>
1075 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
1076 [Define to \`long' if <sys/resource.h> doesn't define.])])
1078 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1079 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1080 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1081 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1082 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1083 #include "ansidecl.h"
1092 gcc_AC_CHECK_DECLS(times, , ,[
1093 #include "ansidecl.h"
1095 #ifdef HAVE_SYS_TIMES_H
1096 #include <sys/times.h>
1100 # More time-related stuff.
1101 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1103 #include "ansidecl.h"
1105 #ifdef HAVE_SYS_TIMES_H
1106 #include <sys/times.h>
1108 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
1109 if test $ac_cv_struct_tms = yes; then
1110 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1111 [Define if <sys/times.h> defines struct tms.])
1114 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1115 # revisit after autoconf 2.50.
1116 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1118 #include "ansidecl.h"
1120 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
1121 if test $gcc_cv_type_clock_t = yes; then
1122 AC_DEFINE(HAVE_CLOCK_T, 1,
1123 [Define if <time.h> defines clock_t.])
1126 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1127 CFLAGS="$saved_CFLAGS"
1129 gcc_AC_INITFINI_ARRAY
1131 # mkdir takes a single argument on some systems.
1132 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1140 # With Setjmp/Longjmp based exception handling.
1141 AC_ARG_ENABLE(sjlj-exceptions,
1142 [ --enable-sjlj-exceptions
1143 arrange to use setjmp/longjmp exception handling],
1144 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1145 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1146 [Define 0/1 to force the choice for exception handling model.])])
1148 # For platforms with the unwind ABI which includes an unwind library,
1149 # libunwind, we can choose to use the system libunwind.
1150 AC_ARG_WITH(system-libunwind,
1151 [ --with-system-libunwind use installed libunwind])
1153 # --------------------------------------------------------
1154 # Build, host, and target specific configuration fragments
1155 # --------------------------------------------------------
1157 # Collect build-machine-specific information.
1158 . ${srcdir}/config.build
1160 # Collect host-machine-specific information.
1161 . ${srcdir}/config.host
1165 # Collect target-machine-specific information.
1166 . ${srcdir}/config.gcc
1168 extra_objs="${host_extra_objs} ${extra_objs}"
1169 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1171 # Default the target-machine variables that were not explicitly set.
1172 if test x"$tm_file" = x
1173 then tm_file=$cpu_type/$cpu_type.h; fi
1175 if test x"$extra_headers" = x
1176 then extra_headers=; fi
1178 if test x$md_file = x
1179 then md_file=$cpu_type/$cpu_type.md; fi
1181 if test x$out_file = x
1182 then out_file=$cpu_type/$cpu_type.c; fi
1184 if test x"$tmake_file" = x
1185 then tmake_file=$cpu_type/t-$cpu_type
1188 if test x"$dwarf2" = xyes
1189 then tm_file="$tm_file tm-dwarf2.h"
1192 # Say what files are being used for the output code and MD file.
1193 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1194 echo "Using \`$srcdir/config/$md_file' as machine description file."
1196 # If any of the xm_file variables contain nonexistent files, warn
1197 # about them and drop them.
1200 for x in $build_xm_file; do
1201 if test -f $srcdir/config/$x
1203 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1209 for x in $host_xm_file; do
1210 if test -f $srcdir/config/$x
1212 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1218 for x in $xm_file; do
1219 if test -f $srcdir/config/$x
1221 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1227 for f in $tm_file; do
1230 if test $count = ax; then
1231 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1233 echo "Using the following target machine macro files:"
1234 for f in $tm_file; do
1235 echo " $srcdir/config/$f"
1239 if test x$need_64bit_hwint = xyes; then
1240 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1241 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1244 if test x$use_long_long_for_widest_fast_int = xyes; then
1245 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1246 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1247 efficiently supported by the host hardware.])
1251 for f in $host_xm_file; do
1254 if test $count = a; then
1256 elif test $count = ax; then
1257 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1259 echo "Using the following host machine macro files:"
1260 for f in $host_xm_file; do
1261 echo " $srcdir/config/$f"
1264 echo "Using ${out_host_hook_obj} for host machine hooks."
1266 if test "$host_xm_file" != "$build_xm_file"; then
1268 for f in $build_xm_file; do
1271 if test $count = a; then
1273 elif test $count = ax; then
1274 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1276 echo "Using the following build machine macro files:"
1277 for f in $build_xm_file; do
1278 echo " $srcdir/config/$f"
1287 # Check if a valid thread package
1288 case ${enable_threads} in
1291 target_thread_file='single'
1295 target_thread_file='single'
1297 aix | dce | gnat | irix | posix | posix95 | rtems | \
1298 single | solaris | vxworks | win32 )
1299 target_thread_file=${enable_threads}
1302 echo "${enable_threads} is an unknown thread package" 1>&2
1307 if test x${thread_file} = x; then
1308 # No thread file set by target-specific clauses in config.gcc,
1309 # so use file chosen by default logic above
1310 thread_file=${target_thread_file}
1313 # Make gthr-default.h if we have a thread file.
1315 if test $thread_file != single; then
1316 rm -f gthr-default.h
1317 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1318 gthread_flags=-DHAVE_GTHR_DEFAULT
1320 AC_SUBST(gthread_flags)
1327 if test x$enable___cxa_atexit = xyes || \
1328 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1329 if test x$host = x$target; then
1330 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1331 [echo "__cxa_atexit can't be enabled on this target"])
1333 # We can't check for __cxa_atexit when building a cross, so assume
1337 if test x$use_cxa_atexit = xyes; then
1338 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1339 [Define if you want to use __cxa_atexit, rather than atexit, to
1340 register C++ destructors for local statics and global objects.
1341 This is essential for fully standards-compliant handling of
1342 destructors, but requires __cxa_atexit in libc.])
1346 # Look for a file containing extra machine modes.
1347 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1348 extra_modes_file='$(srcdir)'/config/${extra_modes}
1349 AC_SUBST(extra_modes_file)
1350 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1351 [Define to the name of a file containing a list of extra machine modes
1352 for this architecture.])
1355 # Convert extra_options into a form suitable for Makefile use.
1357 for f in $extra_options; do
1358 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1360 AC_SUBST(extra_opt_files)
1362 # auto-host.h is the file containing items generated by autoconf and is
1363 # the first file included by config.h.
1364 # If host=build, it is correct to have bconfig include auto-host.h
1365 # as well. If host!=build, we are in error and need to do more
1366 # work to find out the build config parameters.
1367 if test x$host = x$build
1369 build_auto=auto-host.h
1371 # We create a subdir, then run autoconf in the subdir.
1372 # To prevent recursion we set host and build for the new
1373 # invocation of configure to the build for this invocation
1380 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1381 *) realsrcdir=../${srcdir};;
1383 saved_CFLAGS="${CFLAGS}"
1384 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1385 ${realsrcdir}/configure \
1386 --enable-languages=${enable_languages-all} \
1387 --target=$target_alias --host=$build_alias --build=$build_alias
1388 CFLAGS="${saved_CFLAGS}"
1390 # We just finished tests for the build machine, so rename
1391 # the file auto-build.h in the gcc directory.
1392 mv auto-host.h ../auto-build.h
1395 build_auto=auto-build.h
1397 AC_SUBST(build_subdir)
1399 tm_file="${tm_file} defaults.h"
1400 tm_p_file="${tm_p_file} tm-preds.h"
1401 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1402 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1403 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1404 # put this back in temporarily.
1405 xm_file="ansidecl.h ${xm_file}"
1412 # Compile in configure arguments.
1413 if test -f configargs.h ; then
1414 # Being re-configured.
1415 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1416 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1418 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1421 # Double all backslashes and backslash all quotes to turn
1422 # gcc_config_arguments into a C string.
1423 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1424 $gcc_config_arguments
1426 gcc_config_arguments_str=`cat conftest.out`
1429 cat > configargs.h <<EOF
1430 /* Generated automatically. */
1431 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1432 static const char thread_model[] = "$thread_file";
1434 static const struct {
1435 const char *name, *value;
1436 } configure_default_options[] = $configure_default_options;
1440 # Internationalization
1441 ZW_GNU_GETTEXT_SISTER_DIR
1443 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1444 # -liconv on the link line twice.
1445 case "$LIBINTL" in *$LIBICONV*)
1449 # Windows32 Registry support for specifying GCC installation paths.
1450 AC_ARG_ENABLE(win32-registry,
1451 [ --disable-win32-registry
1452 disable lookup of installation paths in the
1453 Registry on Windows hosts
1454 --enable-win32-registry enable registry lookup (default)
1455 --enable-win32-registry=KEY
1456 use KEY instead of GCC version as the last portion
1457 of the registry key],,)
1460 win32 | pe | cygwin* | mingw32* | uwin*)
1461 if test "x$enable_win32_registry" != xno; then
1462 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1465 if test "x$enable_win32_registry" != xno; then
1466 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1467 [Define to 1 if installation paths should be looked up in the Windows
1468 Registry. Ignored on non-Windows hosts.])
1470 if test "x$enable_win32_registry" != xyes \
1471 && test "x$enable_win32_registry" != x; then
1472 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1473 [Define to be the last component of the Windows registry key under which
1474 to look for installation paths. The full key used will be
1475 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1476 The default is the GCC version number.])
1482 # Get an absolute path to the GCC top-level source directory
1483 holddir=`${PWDCMD-pwd}`
1485 topdir=`${PWDCMD-pwd}`
1488 # Conditionalize the makefile for this host machine.
1490 for f in ${host_xmake_file}
1492 if test -f ${srcdir}/config/$f
1494 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1498 # Conditionalize the makefile for this target machine.
1500 for f in ${tmake_file}
1502 if test -f ${srcdir}/config/$f
1504 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1507 tmake_file="${tmake_file_}"
1509 # If the host doesn't support symlinks, modify CC in
1510 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1511 # Otherwise, we can use "CC=$(CC)".
1515 cc_set_by_configure="\$(CC)"
1516 quoted_cc_set_by_configure="\$(CC)"
1517 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1518 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1521 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1522 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1523 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1524 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1528 # This is a terrible hack which will go away some day.
1529 host_cc_for_libada=${CC}
1530 AC_SUBST(host_cc_for_libada)
1532 out_object_file=`basename $out_file .c`.o
1534 tm_file_list="options.h"
1535 tm_include_list="options.h"
1536 for f in $tm_file; do
1539 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1540 tm_include_list="${tm_include_list} $f"
1543 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1544 tm_include_list="${tm_include_list} config/$f"
1551 for f in $tm_p_file; do
1554 tm_p_file_list="${tm_p_file_list} $f"
1555 tm_p_include_list="${tm_p_include_list} $f"
1558 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1559 tm_p_include_list="${tm_p_include_list} config/$f"
1565 for f in $xm_file; do
1568 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1569 xm_include_list="${xm_include_list} $f"
1572 xm_file_list="${xm_file_list} $f"
1573 xm_include_list="${xm_include_list} $f"
1576 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1577 xm_include_list="${xm_include_list} config/$f"
1583 host_xm_include_list=
1584 for f in $host_xm_file; do
1587 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1588 host_xm_include_list="${host_xm_include_list} $f"
1591 host_xm_file_list="${host_xm_file_list} $f"
1592 host_xm_include_list="${host_xm_include_list} $f"
1595 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1596 host_xm_include_list="${host_xm_include_list} config/$f"
1602 for f in $build_xm_file; do
1605 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1606 build_xm_include_list="${build_xm_include_list} $f"
1608 auto-build.h | auto-host.h )
1609 build_xm_file_list="${build_xm_file_list} $f"
1610 build_xm_include_list="${build_xm_include_list} $f"
1613 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1614 build_xm_include_list="${build_xm_include_list} config/$f"
1619 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1620 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1621 CROSS= AC_SUBST(CROSS)
1622 ALL=all.internal AC_SUBST(ALL)
1623 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1624 if test x$host != x$target
1626 CROSS="-DCROSS_COMPILE"
1628 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1629 case "$host","$target" in
1630 # Darwin crosses can use the host system's libraries and headers,
1631 # because of the fat library support. Of course, it must be the
1632 # same version of Darwin on both sides. Allow the user to
1633 # just say --target=foo-darwin without a version number to mean
1634 # "the version on this system".
1635 *-*-darwin*,*-*-darwin*)
1636 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1637 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1638 if test $hostos = $targetos -o $targetos = darwin ; then
1640 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1645 i?86-*-*,x86_64-*-* \
1646 | powerpc*-*-*,powerpc64*-*-*)
1647 CROSS="$CROSS -DNATIVE_CROSS" ;;
1649 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1650 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1651 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1654 # If this is a cross-compiler that does not
1655 # have its own set of headers then define
1658 # If this is using newlib, without having the headers available now,
1659 # then define inhibit_libc in LIBGCC2_CFLAGS.
1660 # This prevents libgcc2 from containing any code which requires libc
1663 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1664 test x$with_newlib = xyes ; } &&
1665 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1666 inhibit_libc=-Dinhibit_libc
1668 AC_SUBST(inhibit_libc)
1670 # When building gcc with a cross-compiler, we need to adjust things so
1671 # that the generator programs are still built with the native compiler.
1672 # Also, we cannot run fixincludes or fix-header.
1674 # These are the normal (build=host) settings:
1675 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1676 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1677 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1679 # Possibly disable fixproto, on a per-target basis.
1680 case ${use_fixproto} in
1685 STMP_FIXPROTO=stmp-fixproto
1688 AC_SUBST(STMP_FIXPROTO)
1690 # And these apply if build != host, or we are generating coverage data
1691 if test x$build != x$host || test "x$coverage_flags" != x
1693 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1695 if test "x$TARGET_SYSTEM_ROOT" = x; then
1696 if [ "x$STMP_FIXPROTO" != x ] ; then
1697 STMP_FIXPROTO=stmp-install-fixproto
1702 # Expand extra_headers to include complete path.
1703 # This substitutes for lots of t-* files.
1705 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1706 for file in ${extra_headers} ; do
1707 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1710 # Define collect2 in Makefile.
1711 case $host_can_use_collect2 in
1713 *) collect2='collect2$(exeext)' ;;
1715 AC_SUBST([collect2])
1717 # Add a definition of USE_COLLECT2 if system wants one.
1718 case $use_collect2 in
1719 no) use_collect2= ;;
1722 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1723 xm_defines="${xm_defines} USE_COLLECT2"
1724 case $host_can_use_collect2 in
1726 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1732 # ---------------------------
1733 # Assembler & linker features
1734 # ---------------------------
1736 # Identify the assembler which will work hand-in-glove with the newly
1737 # built GCC, so that we can examine its features. This is the assembler
1738 # which will be driven by the driver program.
1740 # If build != host, and we aren't building gas in-tree, we identify a
1741 # build->target assembler and hope that it will have the same features
1742 # as the host->target assembler we'll be using.
1743 AC_MSG_CHECKING(what assembler to use)
1746 gcc_cv_gas_major_version=
1747 gcc_cv_gas_minor_version=
1748 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1749 if test -x "$DEFAULT_ASSEMBLER"; then
1750 gcc_cv_as="$DEFAULT_ASSEMBLER"
1751 elif test -x as$build_exeext; then
1752 # Build using assembler in the current directory.
1753 gcc_cv_as=./as$build_exeext
1754 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1755 && test -f ../gas/Makefile \
1756 && test x$build = x$host; then
1757 # Single tree build which includes gas. We want to prefer it
1758 # over whatever linker top-level may have detected, since
1759 # we'll use what we're building after installation anyway.
1761 _gcc_COMPUTE_GAS_VERSION
1762 rm -f as$build_exeext
1763 $LN_S ../gas/as-new$build_exeext as$build_exeext 2>/dev/null
1764 in_tree_gas_is_elf=no
1765 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1766 || (grep 'obj_format = multi' ../gas/Makefile \
1767 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1769 in_tree_gas_is_elf=yes
1771 m4_pattern_allow([AS_FOR_TARGET])dnl
1772 elif test -x "$AS_FOR_TARGET"; then
1773 gcc_cv_as="$AS_FOR_TARGET"
1774 elif test -x "$AS" && test x$host = x$target; then
1778 gcc_version=`cat $srcdir/BASE-VER`
1780 if test "x$gcc_cv_as" = x; then
1781 # Search the same directories that the installed compiler will
1782 # search. Else we may find the wrong assembler and lose. If we
1783 # do not find a suitable assembler binary, then try the user's
1786 # Also note we have to check MD_EXEC_PREFIX before checking the
1787 # user's path. Unfortunately, there is no good way to get at the
1788 # value of MD_EXEC_PREFIX here. So we do a brute force search
1789 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1790 # to be fixed as part of the make/configure rewrite too.
1792 if test "x$exec_prefix" = xNONE; then
1793 if test "x$prefix" = xNONE; then
1794 test_prefix=/usr/local
1799 test_prefix=$exec_prefix
1802 # If the loop below does not find an assembler, then use whatever
1803 # one we can find in the users's path. We are looking for a
1804 # ${build} -> ${target} assembler.
1805 if test "x$program_prefix" != xNONE; then
1806 gcc_cv_as=${program_prefix}as$build_exeext
1807 elif test x$build != x$host && test x$build != x$target; then
1808 gcc_cv_as=${target_noncanonical}-as$build_exeext
1810 gcc_cv_as=`echo as | sed "${program_transform_name}"`$build_exeext
1813 if test x$host = x$build; then
1814 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1815 $test_prefix/libexec/gcc/$target_noncanonical \
1816 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1817 /usr/lib/gcc/$target_noncanonical \
1818 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1819 $test_prefix/$target_noncanonical/bin"
1824 if test x$build = x$target; then
1825 test_dirs="$test_dirs \
1830 /bsd43/usr/lib/cmplrs/cc \
1831 /usr/cross64/usr/bin \
1832 /usr/lib/cmplrs/cc \
1833 /sysv/usr/lib/cmplrs/cc \
1834 /svr4/usr/lib/cmplrs/cc \
1838 for dir in $test_dirs; do
1839 if test -x $dir/as$build_exeext; then
1840 gcc_cv_as=$dir/as$build_exeext
1845 case $in_tree_gas in
1847 AC_MSG_RESULT("newly built gas")
1850 AC_MSG_RESULT($gcc_cv_as)
1854 # Identify the linker which will work hand-in-glove with the newly
1855 # built GCC, so that we can examine its features. This is the linker
1856 # which will be driven by the driver program.
1858 # If build != host, and we aren't building gas in-tree, we identify a
1859 # build->target linker and hope that it will have the same features
1860 # as the host->target linker we'll be using.
1861 AC_MSG_CHECKING(what linker to use)
1864 gcc_cv_gld_major_version=
1865 gcc_cv_gld_minor_version=
1866 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1867 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1868 if test -x "$DEFAULT_LINKER"; then
1869 gcc_cv_ld="$DEFAULT_LINKER"
1870 elif test -x collect-ld$build_exeext; then
1871 # Build using linker in the current directory.
1872 gcc_cv_ld=./collect-ld$build_exeext
1873 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1874 && test -f ../ld/Makefile \
1875 && test x$build = x$host; then
1876 # Single tree build which includes ld. We want to prefer it
1877 # over whatever linker top-level may have detected, since
1878 # we'll use what we're building after installation anyway.
1880 in_tree_ld_is_elf=no
1881 if (grep 'EMUL = .*elf' ../ld/Makefile \
1882 || grep 'EMUL = .*linux' ../ld/Makefile \
1883 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1884 in_tree_ld_is_elf=yes
1886 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
1889 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1891 if test x$gcc_cv_gld_version != x; then
1896 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1897 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1899 rm -f collect-ld$build_exeext
1900 $LN_S ../ld/ld-new$build_exeext collect-ld$build_exeext 2>/dev/null
1901 elif test -x "$LD_FOR_TARGET"; then
1902 gcc_cv_ld="$LD_FOR_TARGET"
1903 elif test -x "$LD" && test x$host = x$target; then
1907 if test "x$gcc_cv_ld" = x; then
1908 # Search the same directories that the installed compiler will
1909 # search. Else we may find the wrong linker and lose. If we
1910 # do not find a suitable linker binary, then try the user's
1913 # Also note we have to check MD_EXEC_PREFIX before checking the
1914 # user's path. Unfortunately, there is no good way to get at the
1915 # value of MD_EXEC_PREFIX here. So we do a brute force search
1916 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1917 # to be fixed as part of the make/configure rewrite too.
1919 if test "x$exec_prefix" = xNONE; then
1920 if test "x$prefix" = xNONE; then
1921 test_prefix=/usr/local
1926 test_prefix=$exec_prefix
1929 # If the loop below does not find a linker, then use whatever
1930 # one we can find in the users's path. We are looking for a
1931 # ${build} -> ${target} linker.
1932 if test "x$program_prefix" != xNONE; then
1933 gcc_cv_ld=${program_prefix}ld$build_exeext
1934 elif test x$build != x$host && test x$build != x$target; then
1935 gcc_cv_ld=${target_noncanonical}-ld$build_exeext
1937 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$build_exeext
1940 if test x$host = x$build; then
1941 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1942 $test_prefix/libexec/gcc/$target_noncanonical \
1943 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1944 /usr/lib/gcc/$target_noncanonical \
1945 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1946 $test_prefix/$target_noncanonical/bin"
1951 if test x$build = x$target; then
1952 test_dirs="$test_dirs \
1957 /bsd43/usr/lib/cmplrs/cc \
1958 /usr/cross64/usr/bin \
1959 /usr/lib/cmplrs/cc \
1960 /sysv/usr/lib/cmplrs/cc \
1961 /svr4/usr/lib/cmplrs/cc \
1965 for dir in $test_dirs; do
1966 if test -x $dir/ld$build_exeext; then
1967 gcc_cv_ld=$dir/ld$build_exeext
1974 AC_MSG_RESULT("newly built ld")
1977 AC_MSG_RESULT($gcc_cv_ld)
1981 # Figure out what nm we will be using.
1982 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1983 AC_MSG_CHECKING(what nm to use)
1985 if test -x nm$build_exeext; then
1986 gcc_cv_nm=./nm$build_exeext
1987 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1988 && test -f ../binutils/Makefile; then
1989 # Single tree build which includes binutils.
1991 gcc_cv_nm=./nm$build_exeext
1992 rm -f nm$build_exeext
1993 $LN_S ../binutils/nm-new$build_exeext nm$build_exeext 2>/dev/null
1994 elif test "x$program_prefix" != xNONE; then
1995 gcc_cv_nm=${program_prefix}nm$build_exeext
1996 elif test x$build != x$host && test x$build != x$target; then
1997 gcc_cv_nm=${target_noncanonical}-nm$build_exeext
1999 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$build_exeext
2002 yes) AC_MSG_RESULT("newly built nm") ;;
2003 no) AC_MSG_RESULT($gcc_cv_nm) ;;
2006 # Figure out what objdump we will be using.
2007 AC_MSG_CHECKING(what objdump to use)
2009 if test -x objdump$build_exeext; then
2010 gcc_cv_objdump=./objdump$build_exeext
2011 elif test -f $gcc_cv_binutils_srcdir/configure.in \
2012 && test -f ../binutils/Makefile; then
2013 # Single tree build which includes binutils.
2015 gcc_cv_objdump=./objdump$build_exeext
2016 rm -f objdump$build_exeext
2017 $LN_S ../binutils/objdump$build_exeext objdump$build_exeext 2>/dev/null
2018 elif test "x$program_prefix" != xNONE; then
2019 gcc_cv_objdump=${program_prefix}objdump$build_exeext
2020 elif test x$build != x$host && test x$build != x$target; then
2021 gcc_cv_objdump=${target_noncanonical}-objdump$build_exeext
2023 gcc_cv_objdump=`echo objdump | \
2024 sed "${program_transform_name}"`$build_exeext
2026 case $in_tree_objdump in
2027 yes) AC_MSG_RESULT("newly built objdump") ;;
2028 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
2031 # Figure out what assembler alignment features are present.
2032 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
2036 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
2037 [Define if your assembler supports .balign and .p2align.])])
2039 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
2042 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
2043 [Define if your assembler supports specifying the maximum number
2044 of bytes to skip when using the GAS .p2align command.])])
2046 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
2048 [conftest_label1: .word 0
2050 conftest_label2: .word 0
2052 [if test x$gcc_cv_nm != x; then
2053 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
2054 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
2055 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
2057 else gcc_cv_as_subsection_m1=yes
2059 rm -f conftest.nm1 conftest.nm2
2061 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2062 [Define if your assembler supports .subsection and .subsection -1 starts
2063 emitting at the beginning of your section.])])
2065 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2068 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2070 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
2073 .NSUBSPA $CODE$,COMDAT],,
2074 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
2076 # .hidden needs to be supported in both the assembler and the linker,
2077 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2078 # This is irritatingly difficult to feature test for; we have to check the
2079 # date string after the version number. If we've got an in-tree
2080 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2082 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2083 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2088 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2089 [if test $in_tree_ld = yes ; then
2091 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2092 && test $in_tree_ld_is_elf = yes; then
2093 gcc_cv_ld_hidden=yes
2096 gcc_cv_ld_hidden=yes
2097 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2098 if echo "$ld_ver" | grep GNU > /dev/null; then
2100 ld_vers=`echo $ld_ver | sed -n \
2101 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2102 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2103 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2104 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2105 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2106 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2107 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2108 if test 0"$ld_date" -lt 20020404; then
2109 if test -n "$ld_date"; then
2110 # If there was date string, but was earlier than 2002-04-04, fail
2112 elif test -z "$ld_vers"; then
2113 # If there was no date string nor ld version number, something is wrong
2116 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2117 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2118 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2119 test -z "$ld_vers_patch" && ld_vers_patch=0
2120 if test "$ld_vers_major" -lt 2; then
2122 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2123 gcc_cv_ld_hidden="no"
2124 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2132 hppa64*-*-hpux* | ia64*-*-hpux*)
2133 gcc_cv_ld_hidden=yes
2141 libgcc_visibility=no
2142 AC_SUBST(libgcc_visibility)
2143 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2144 libgcc_visibility=yes
2145 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2146 [Define if your assembler and linker support .hidden.])
2149 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2150 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2158 [# GAS versions before 2.11 do not support uleb128,
2159 # despite appearing to.
2160 # ??? There exists an elf-specific test that will crash
2161 # the assembler. Perhaps it's better to figure out whether
2162 # arbitrary sections are supported and try the test.
2163 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2164 if echo "$as_ver" | grep GNU > /dev/null; then
2166 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2167 as_major=`echo $as_ver | sed 's/\..*//'`
2168 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2170 if test $as_major -eq 2 && test $as_minor -lt 11
2172 else gcc_cv_as_leb128=yes
2175 [AC_DEFINE(HAVE_AS_LEB128, 1,
2176 [Define if your assembler supports .sleb128 and .uleb128.])])
2178 # GAS versions up to and including 2.11.0 may mis-optimize
2180 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2188 .section .eh_frame,"aw",@progbits
2190 .4byte .LECIE1-.LSCIE1
2204 .4byte .LEFDE1-.LASFDE1
2206 .4byte .LASFDE1-__FRAME_BEGIN__
2214 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2215 cat > conftest.lit <<EOF
2216 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2217 0010 01000000 12000000 18000000 00000000 ................
2218 0020 08000000 04080000 0044 .........D @&t@
2220 cat > conftest.big <<EOF
2221 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2222 0010 00000001 00000012 00000018 00000000 ................
2223 0020 00000008 04000000 0844 .........D @&t@
2225 # If the assembler didn't choke, and we can objdump,
2226 # and we got the correct data, then succeed.
2227 if test x$gcc_cv_objdump != x \
2228 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2229 | tail -3 > conftest.got \
2230 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2231 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2233 gcc_cv_as_eh_frame=yes
2234 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2235 gcc_cv_as_eh_frame=buggy
2237 # Uh oh, what do we do now?
2238 gcc_cv_as_eh_frame=no
2241 if test $gcc_cv_as_eh_frame = buggy; then
2242 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2243 [Define if your assembler mis-optimizes .eh_frame data.])
2246 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2247 [elf,2,12,0], [--fatal-warnings],
2248 [.section .rodata.str, "aMS", @progbits, 1])
2249 if test $gcc_cv_as_shf_merge = no; then
2250 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2251 [elf,2,12,0], [--fatal-warnings],
2252 [.section .rodata.str, "aMS", %progbits, 1])
2254 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2255 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2256 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2258 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2259 [elf,2,15,91], [--fatal-warnings],
2260 [.section .text,"axG",@progbits,.foo,comdat])
2261 if test $gcc_cv_as_comdat_group = yes; then
2262 gcc_cv_as_comdat_group_percent=no
2264 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2265 [elf,2,15,91], [--fatal-warnings],
2266 [.section .text,"axG",%progbits,.foo,comdat])
2268 AC_DEFINE_UNQUOTED(HAVE_GAS_COMDAT_GROUP,
2269 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2270 [Define 0/1 if your assembler supports COMDAT group.])
2272 # Thread-local storage - the check is heavily parametrized.
2281 .section ".tdata","awT",@progbits
2284 ldq $27,__tls_get_addr($29) !literal!1
2285 lda $16,foo($29) !tlsgd!1
2286 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2287 ldq $27,__tls_get_addr($29) !literal!2
2288 lda $16,foo($29) !tlsldm!2
2289 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2290 ldq $1,foo($29) !gotdtprel
2291 ldah $2,foo($29) !dtprelhi
2292 lda $3,foo($2) !dtprello
2293 lda $4,foo($29) !dtprel
2294 ldq $1,foo($29) !gottprel
2295 ldah $2,foo($29) !tprelhi
2296 lda $3,foo($2) !tprello
2297 lda $4,foo($29) !tprel'
2300 tls_as_opt=--fatal-warnings
2304 .section ".tdata","awT",@progbits
2313 .section ".tdata","awT",@progbits
2317 leal foo@TLSGD(,%ebx,1), %eax
2318 leal foo@TLSLDM(%ebx), %eax
2319 leal foo@DTPOFF(%eax), %edx
2320 movl foo@GOTTPOFF(%ebx), %eax
2321 subl foo@GOTTPOFF(%ebx), %eax
2322 addl foo@GOTNTPOFF(%ebx), %eax
2323 movl foo@INDNTPOFF, %eax
2324 movl $foo@TPOFF, %eax
2325 subl $foo@TPOFF, %eax
2326 leal foo@NTPOFF(%ecx), %eax'
2329 tls_as_opt=--fatal-warnings
2333 .section ".tdata","awT",@progbits
2337 leaq foo@TLSGD(%rip), %rdi
2338 leaq foo@TLSLD(%rip), %rdi
2339 leaq foo@DTPOFF(%rax), %rdx
2340 movq foo@GOTTPOFF(%rip), %rax
2341 movq $foo@TPOFF, %rax'
2344 tls_as_opt=--fatal-warnings
2348 .section ".tdata","awT",@progbits
2351 addl r16 = @ltoff(@dtpmod(foo#)), gp
2352 addl r17 = @ltoff(@dtprel(foo#)), gp
2353 addl r18 = @ltoff(@tprel(foo#)), gp
2354 addl r19 = @dtprel(foo#), gp
2355 adds r21 = @dtprel(foo#), r13
2356 movl r23 = @dtprel(foo#)
2357 addl r20 = @tprel(foo#), gp
2358 adds r22 = @tprel(foo#), r13
2359 movl r24 = @tprel(foo#)'
2362 tls_as_opt=--fatal-warnings
2366 .section .tdata,"awT",@progbits
2370 addiu $4, $28, %tlsgd(x)
2371 addiu $4, $28, %tlsldm(x)
2372 lui $4, %dtprel_hi(x)
2373 addiu $4, $4, %dtprel_lo(x)
2374 lw $4, %gottprel(x)($28)
2375 lui $4, %tprel_hi(x)
2376 addiu $4, $4, %tprel_lo(x)'
2379 tls_as_opt='-32 --fatal-warnings'
2383 .section ".tdata","awT",@progbits
2391 addi 3,31,ld0@got@tlsgd
2393 addi 3,31,x1@got@tlsld
2396 addis 9,3,x2@dtprel@ha
2397 addi 9,9,x2@dtprel@l
2398 lwz 9,x3@got@tprel(31)
2401 addis 9,2,x2@tprel@ha
2402 addi 9,9,x2@tprel@l'
2405 tls_as_opt="-a32 --fatal-warnings"
2409 .section ".tdata","awT",@progbits
2417 addi 3,2,ld0@got@tlsgd
2423 addi 3,2,x1@got@tlsld
2429 addis 9,3,x2@dtprel@ha
2430 addi 9,9,x2@dtprel@l
2433 ld 9,x3@got@dtprel(2)
2439 tls_as_opt="-a64 --fatal-warnings"
2443 .section ".tdata","awT",@progbits
2452 l %r1,foo@GOTNTPOFF(%r12)
2453 l %r1,0(%r1):tls_load:foo
2454 bas %r14,0(%r1,%r13):tls_gdcall:foo
2455 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2458 tls_as_opt="-m31 --fatal-warnings"
2462 .section ".tdata","awT",@progbits
2470 lg %r1,foo@GOTNTPOFF(%r12)
2471 larl %r1,foo@INDNTPOFF
2472 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2473 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2476 tls_as_opt="-m64 -Aesame --fatal-warnings"
2478 sh-*-* | sh[34]-*-*)
2480 .section ".tdata","awT",@progbits
2490 tls_as_opt=--fatal-warnings
2494 sparc*-sun-solaris2.*)
2501 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2503 .section ".tdata",#alloc,#write,#tls
2506 sethi %tgd_hi22(foo), %o0
2507 add %o0, %tgd_lo10(foo), %o1
2508 add %l7, %o1, %o0, %tgd_add(foo)
2509 call __tls_get_addr, %tgd_call(foo)
2510 sethi %tldm_hi22(foo), %l1
2511 add %l1, %tldm_lo10(foo), %l2
2512 add %l7, %l2, %o0, %tldm_add(foo)
2513 call __tls_get_addr, %tldm_call(foo)
2514 sethi %tldo_hix22(foo), %l3
2515 xor %l3, %tldo_lox10(foo), %l4
2516 add %o0, %l4, %l5, %tldo_add(foo)
2517 sethi %tie_hi22(foo), %o3
2518 add %o3, %tie_lo10(foo), %o3
2519 ld [%l7 + %o3], %o2, %tie_ld(foo)
2520 add %g7, %o2, %o4, %tie_add(foo)
2521 sethi %tle_hix22(foo), %l1
2522 xor %l1, %tle_lox10(foo), %o5
2523 ld [%g7 + %o5], %o1'
2528 .section ".tdata","awT",@progbits
2531 sethi %tgd_hi22(foo), %o0
2532 add %o0, %tgd_lo10(foo), %o1
2533 add %l7, %o1, %o0, %tgd_add(foo)
2534 call __tls_get_addr, %tgd_call(foo)
2535 sethi %tldm_hi22(foo), %l1
2536 add %l1, %tldm_lo10(foo), %l2
2537 add %l7, %l2, %o0, %tldm_add(foo)
2538 call __tls_get_addr, %tldm_call(foo)
2539 sethi %tldo_hix22(foo), %l3
2540 xor %l3, %tldo_lox10(foo), %l4
2541 add %o0, %l4, %l5, %tldo_add(foo)
2542 sethi %tie_hi22(foo), %o3
2543 add %o3, %tie_lo10(foo), %o3
2544 ld [%l7 + %o3], %o2, %tie_ld(foo)
2545 add %g7, %o2, %o4, %tie_add(foo)
2546 sethi %tle_hix22(foo), %l1
2547 xor %l1, %tle_lox10(foo), %o5
2548 ld [%g7 + %o5], %o1'
2551 tls_as_opt="-32 --fatal-warnings"
2556 if test -z "$tls_first_major"; then
2557 : # If we don't have a check, assume no support.
2559 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2560 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2561 [AC_DEFINE(HAVE_AS_TLS, 1,
2562 [Define if your assembler supports thread-local storage.])])
2565 # Target-specific assembler checks.
2567 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2568 gcc_cv_ld_static_dynamic=no
2569 if test $in_tree_ld = yes ; then
2570 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2571 gcc_cv_ld_static_dynamic=yes
2573 elif test x$gcc_cv_ld != x; then
2574 # Check if linker supports -Bstatic/-Bdynamic option
2575 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2576 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2577 gcc_cv_ld_static_dynamic=yes
2580 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2581 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2582 [Define if your linker supports -Bstatic/-Bdynamic option.])
2584 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2586 if test x"$demangler_in_ld" = xyes; then
2587 AC_MSG_CHECKING(linker --demangle support)
2588 gcc_cv_ld_demangle=no
2589 if test $in_tree_ld = yes; then
2590 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2591 gcc_cv_ld_demangle=yes
2593 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2594 # Check if the GNU linker supports --demangle option
2595 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2596 gcc_cv_ld_demangle=yes
2599 if test x"$gcc_cv_ld_demangle" = xyes; then
2600 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2601 [Define if your linker supports --demangle option.])
2603 AC_MSG_RESULT($gcc_cv_ld_demangle)
2607 # All TARGET_ABI_OSF targets.
2608 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2609 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2610 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2613 extbl $3, $2, $3 !lituse_bytoff!1
2614 ldq $2, a($29) !literal!1
2615 ldq $4, b($29) !literal!2
2616 ldq_u $3, 0($2) !lituse_base!1
2617 ldq $27, f($29) !literal!5
2618 jsr $26, ($27), f !lituse_jsr!5
2619 ldah $29, 0($26) !gpdisp!3
2620 lda $0, c($29) !gprel
2621 ldah $1, d($29) !gprelhigh
2622 lda $1, d($1) !gprellow
2623 lda $29, 0($29) !gpdisp!3],,
2624 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2625 [Define if your assembler supports explicit relocations.])])
2629 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2630 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2631 [-no-mul-bug-abort], [.text],,
2632 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2633 [Define if your assembler supports the -no-mul-bug-abort option.])])
2637 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2638 [.register %g2, #scratch],,
2639 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2640 [Define if your assembler supports .register.])])
2642 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2644 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2645 [Define if your assembler supports -relax option.])])
2647 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2648 gcc_cv_as_sparc_ua_pcrel,,
2656 .uaword %r_disp32(foo)],
2657 [if test x$gcc_cv_ld != x \
2658 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2659 gcc_cv_as_sparc_ua_pcrel=yes
2662 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2663 [Define if your assembler and linker support unaligned PC relative relocs.])
2665 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2666 gcc_cv_as_sparc_ua_pcrel_hidden,,
2671 .uaword %r_disp32(foo)
2672 .byte 0x32, 0x33, 0x34
2677 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2678 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2679 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2680 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2681 if $gcc_cv_objdump -R conftest 2> /dev/null \
2682 | grep 'DISP32' > /dev/null 2>&1; then
2685 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2689 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2690 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2691 ]) # unaligned pcrel relocs
2693 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2694 gcc_cv_as_sparc_offsetable_lo10,,
2697 or %g1, %lo(ab) + 12, %g1
2698 or %g1, %lo(ab + 12), %g1],
2699 [if test x$gcc_cv_objdump != x \
2700 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2701 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2702 gcc_cv_as_sparc_offsetable_lo10=yes
2704 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2705 [Define if your assembler supports offsetable %lo().])])
2709 i[34567]86-*-* | x86_64-*-*)
2712 cygwin* | pe | mingw32*)
2713 # Used for DWARF 2 in PE
2714 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2715 gcc_cv_as_ix86_pe_secrel32,
2721 [if test x$gcc_cv_ld != x \
2722 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2723 gcc_cv_as_ix86_pe_secrel32=yes
2726 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2727 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2731 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2732 gcc_cv_as_ix86_filds_fists,
2733 [2,9,0],, [filds mem; fists mem],,
2734 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2735 [Define if your assembler uses the new HImode fild and fist notation.])])
2737 gcc_GAS_CHECK_FEATURE([cmov syntax],
2738 gcc_cv_as_ix86_cmov_sun_syntax,,,
2739 [cmovl.l %edx, %eax],,
2740 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2741 [Define if your assembler supports the Sun syntax for cmov.])])
2743 # This one is used unconditionally by i386.[ch]; it is to be defined
2744 # to 1 if the feature is present, 0 otherwise.
2745 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2746 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2752 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2753 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2754 [Define true if the assembler supports '.long foo@GOTOFF'.])
2758 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2759 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2761 addl r15 = @ltoffx(x#), gp
2763 ld8.mov r16 = [[r15]], x#],,
2764 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2765 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2771 *-*-aix*) conftest_s=' .csect .text[[PR]]
2774 gcc_GAS_CHECK_FEATURE([.machine directive support],
2775 gcc_cv_as_machine_directive,,,
2776 [ .machine ppc7400])
2777 if test x$gcc_cv_as_machine_directive != xyes; then
2778 echo "*** This target requires an assembler supporting \".machine\"" >&2
2779 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2780 test x$build = x$target && exit 1
2784 *) conftest_s=' .machine power4
2789 gcc_GAS_CHECK_FEATURE([mfcr field support],
2790 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2792 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2793 [Define if your assembler supports mfcr field.])])
2797 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2798 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2799 [ lw $4,%gp_rel(foo)($4)],,
2800 [if test x$target_cpu_default = x
2801 then target_cpu_default=MASK_EXPLICIT_RELOCS
2802 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2805 if test x$gas_flag = xyes \
2806 || test x"$host" != x"$build" \
2807 || test ! -x "$gcc_cv_as" \
2808 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2811 echo "*** This configuration requires the GNU assembler" >&2
2816 # ??? Not all targets support dwarf2 debug_line, even within a version
2817 # of gas. Moreover, we need to emit a valid instruction to trigger any
2818 # info to the output file. So, as supported targets are added to gas 2.11,
2819 # add some instruction here to (also) show we expect this might work.
2820 # ??? Once 2.11 is released, probably need to add first known working
2821 # version to the per-target configury.
2823 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2824 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2825 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2828 ia64*-*-* | s390*-*-*)
2835 if test x"$insn" != x; then
2837 .file 1 \"conftest.s\"
2840 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2841 gcc_cv_as_dwarf2_debug_line,
2842 [elf,2,11,0],, [$conftest_s],
2843 [if test x$gcc_cv_objdump != x \
2844 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
2845 | grep debug_line > /dev/null 2>&1; then
2846 gcc_cv_as_dwarf2_debug_line=yes
2849 # The .debug_line file table must be in the exact order that
2850 # we specified the files, since these indices are also used
2851 # by DW_AT_decl_file. Approximate this test by testing if
2852 # the assembler bitches if the same index is assigned twice.
2853 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2854 gcc_cv_as_dwarf2_file_buggy,,,
2858 if test $gcc_cv_as_dwarf2_debug_line = yes \
2859 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2860 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2861 [Define if your assembler supports dwarf2 .file/.loc directives,
2862 and preserves file table indices exactly as given.])
2865 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2866 gcc_cv_as_gdwarf2_flag,
2867 [elf,2,11,0], [--gdwarf2], [$insn],,
2868 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2869 [Define if your assembler supports the --gdwarf2 option.])])
2871 gcc_GAS_CHECK_FEATURE([--gstabs option],
2872 gcc_cv_as_gstabs_flag,
2873 [elf,2,11,0], [--gstabs], [$insn],
2874 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2875 # and warns about it, but still exits successfully. So check for
2877 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2879 else gcc_cv_as_gstabs_flag=yes
2881 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2882 [Define if your assembler supports the --gstabs option.])])
2885 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2886 gcc_cv_ld_ro_rw_mix=unknown
2887 if test $in_tree_ld = yes ; then
2888 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2889 && test $in_tree_ld_is_elf = yes; then
2890 gcc_cv_ld_ro_rw_mix=read-write
2892 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2893 echo '.section myfoosect, "a"' > conftest1.s
2894 echo '.section myfoosect, "aw"' > conftest2.s
2895 echo '.byte 1' >> conftest2.s
2896 echo '.section myfoosect, "a"' > conftest3.s
2897 echo '.byte 0' >> conftest3.s
2898 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2899 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2900 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2901 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2902 conftest2.o conftest3.o > /dev/null 2>&1; then
2903 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2904 | sed -e '/myfoosect/!d' -e N`
2905 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2906 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2907 gcc_cv_ld_ro_rw_mix=read-only
2909 gcc_cv_ld_ro_rw_mix=read-write
2914 rm -f conftest.* conftest[123].*
2917 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2918 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2919 [Define if your linker links a mix of read-only
2920 and read-write sections into a read-write section.])
2922 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2924 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2925 gcc_cv_ld_eh_frame_hdr=no
2926 if test $in_tree_ld = yes ; then
2927 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2928 && test $in_tree_ld_is_elf = yes; then
2929 gcc_cv_ld_eh_frame_hdr=yes
2931 elif test x$gcc_cv_ld != x; then
2932 # Check if linker supports --eh-frame-hdr option
2933 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2934 gcc_cv_ld_eh_frame_hdr=yes
2937 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2938 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2939 [Define if your linker supports --eh-frame-hdr option.])
2941 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2943 AC_MSG_CHECKING(linker position independent executable support)
2945 if test $in_tree_ld = yes ; then
2946 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2947 && test $in_tree_ld_is_elf = yes; then
2950 elif test x$gcc_cv_ld != x; then
2951 # Check if linker supports -pie option
2952 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2956 if test x"$gcc_cv_ld_pie" = xyes; then
2957 AC_DEFINE(HAVE_LD_PIE, 1,
2958 [Define if your linker supports -pie option.])
2960 AC_MSG_RESULT($gcc_cv_ld_pie)
2966 AC_CACHE_CHECK(linker --as-needed support,
2967 gcc_cv_ld_as_needed,
2968 [gcc_cv_ld_as_needed=no
2969 if test $in_tree_ld = yes ; then
2970 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2971 && test $in_tree_ld_is_elf = yes; then
2972 gcc_cv_ld_as_needed=yes
2974 elif test x$gcc_cv_ld != x; then
2975 # Check if linker supports --as-needed and --no-as-needed options
2976 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2977 gcc_cv_ld_as_needed=yes
2981 if test x"$gcc_cv_ld_as_needed" = xyes; then
2982 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2983 [Define if your linker supports --as-needed and --no-as-needed options.])
2987 powerpc64*-*-linux*)
2988 AC_CACHE_CHECK(linker support for omitting dot symbols,
2989 gcc_cv_ld_no_dot_syms,
2990 [gcc_cv_ld_no_dot_syms=no
2991 if test $in_tree_ld = yes ; then
2992 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
2993 gcc_cv_ld_no_dot_syms=yes
2995 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
2996 cat > conftest1.s <<EOF
3000 cat > conftest2.s <<EOF
3001 .section ".opd","aw"
3006 .quad .LEfoo,.TOC.@tocbase,0
3012 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
3013 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
3014 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
3015 gcc_cv_ld_no_dot_syms=yes
3017 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3020 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3021 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3022 [Define if your PowerPC64 linker only needs function descriptor syms.])
3027 if test x$with_sysroot = x && test x$host = x$target \
3028 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
3029 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3030 [Define to PREFIX/include if cpp should also search that directory.])
3033 # Find out what GC implementation we want, or may, use.
3035 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3043 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3046 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3051 echo "Using $GGC for garbage collection."
3053 # Use the system's zlib library.
3055 zlibinc="-I\$(srcdir)/../zlib"
3056 AC_ARG_WITH(system-zlib,
3057 [ --with-system-zlib use installed libz],
3064 dnl Very limited version of automake's enable-maintainer-mode
3066 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3067 dnl maintainer-mode is disabled by default
3068 AC_ARG_ENABLE(maintainer-mode,
3069 [ --enable-maintainer-mode
3070 enable make rules and dependencies not useful
3071 (and sometimes confusing) to the casual installer],
3072 maintainer_mode=$enableval,
3075 AC_MSG_RESULT($maintainer_mode)
3077 if test "$maintainer_mode" = "yes"; then
3088 # Make empty files to contain the specs and options for each language.
3089 # Then add #include lines to for a compiler that has specs and/or options.
3094 for subdir in . $subdirs
3096 if test -f $srcdir/$subdir/lang.opt; then
3097 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3099 if test -f $srcdir/$subdir/lang-specs.h; then
3100 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3102 if test -f $srcdir/$subdir/$subdir-tree.def; then
3103 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3107 # These (without "all_") are set in each config-lang.in.
3108 # `language' must be a single word so is spelled singularly.
3113 all_outputs='Makefile gccbug mklibgcc libada-mk'
3114 # List of language makefile fragments.
3116 # List of language subdirectory makefiles. Deprecated.
3118 # Files for gengtype
3119 all_gtfiles="$target_gtfiles"
3120 # Files for gengtype with language
3121 all_gtfiles_files_langs=
3122 all_gtfiles_files_files=
3124 # Add the language fragments.
3125 # Languages are added via two mechanisms. Some information must be
3126 # recorded in makefile variables, these are defined in config-lang.in.
3127 # We accumulate them and plug them into the main Makefile.
3128 # The other mechanism is a set of hooks for each of the main targets
3129 # like `clean', `install', etc.
3131 language_hooks="Make-hooks"
3141 . ${srcdir}/$s/config-lang.in
3142 if test "x$language" = x
3144 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3147 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3148 if test -f ${srcdir}/$s/Makefile.in
3149 then all_lang_makefiles="$s/Makefile"
3151 all_languages="$all_languages $language"
3152 if test "x$boot_language" = xyes
3154 all_boot_languages="$all_boot_languages $language"
3156 all_compilers="$all_compilers $compilers"
3157 all_stagestuff="$all_stagestuff $stagestuff"
3158 all_outputs="$all_outputs $outputs"
3159 all_gtfiles="$all_gtfiles $gtfiles"
3162 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3163 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3167 # Pick up gtfiles for c
3170 . ${srcdir}/c-config-lang.in
3171 all_gtfiles="$all_gtfiles $gtfiles"
3174 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3175 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3179 for language in $all_languages
3181 check_languages="$check_languages check-$language"
3184 # We link each language in with a set of hooks, reached indirectly via
3189 target_list="all.build all.cross start.encap rest.encap tags \
3190 install-normal install-common install-man \
3191 uninstall info man srcextra srcman srcinfo \
3192 mostlyclean clean distclean maintainer-clean \
3193 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3194 for t in $target_list
3197 for lang in $all_languages
3201 echo "lang.$t: $x" >> Make-hooks
3210 echo "dir ." > .gdbinit
3211 echo "dir ${srcdir}" >> .gdbinit
3212 if test x$gdb_needs_out_file_path = xyes
3214 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3216 if test "x$subdirs" != x; then
3219 echo "dir ${srcdir}/$s" >> .gdbinit
3222 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3224 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3225 # absolute path for gcc_tooldir based on inserting the number of up-directory
3226 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3227 # $(libsubdir)/@(unlibsubdir) based path.
3228 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3229 # make and thus we'd get different behavior depending on where we built the
3231 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3232 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3234 changequote(<<, >>)dnl
3235 # An explanation of the sed strings:
3236 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3237 # -e 's|/$||' match a trailing forward slash and eliminates it
3238 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3239 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3241 # (*) Note this pattern overwrites the first character of the string
3242 # with a forward slash if one is not already present. This is not a
3243 # problem because the exact names of the sub-directories concerned is
3244 # unimportant, just the number of them matters.
3246 # The practical upshot of these patterns is like this:
3248 # prefix exec_prefix result
3249 # ------ ----------- ------
3251 # /foo/ /foo/bar ../
3252 # /foo /foo/bar/ ../
3253 # /foo/ /foo/bar/ ../
3254 # /foo /foo/bar/ugg ../../
3257 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3258 changequote([, ])dnl
3260 AC_SUBST(gcc_tooldir)
3263 # Find a directory in which to install a shared libgcc.
3265 AC_ARG_ENABLE(version-specific-runtime-libs,
3266 [ --enable-version-specific-runtime-libs
3267 specify that runtime libraries should be
3268 installed in a compiler-specific directory])
3270 AC_ARG_WITH(slibdir,
3271 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3272 slibdir="$with_slibdir",
3273 if test "${enable_version_specific_runtime_libs+set}" = set; then
3274 slibdir='$(libsubdir)'
3275 elif test "$host" != "$target"; then
3276 slibdir='$(build_tooldir)/lib'
3282 objdir=`${PWDCMD-pwd}`
3285 # Substitute configuration variables
3288 AC_SUBST(all_boot_languages)
3289 AC_SUBST(all_compilers)
3290 AC_SUBST(all_gtfiles)
3291 AC_SUBST(all_gtfiles_files_langs)
3292 AC_SUBST(all_gtfiles_files_files)
3293 AC_SUBST(all_lang_makefrags)
3294 AC_SUBST(all_lang_makefiles)
3295 AC_SUBST(all_languages)
3296 AC_SUBST(all_stagestuff)
3297 AC_SUBST(build_exeext)
3298 AC_SUBST(build_install_headers_dir)
3299 AC_SUBST(build_xm_file_list)
3300 AC_SUBST(build_xm_include_list)
3301 AC_SUBST(build_xm_defines)
3302 AC_SUBST(check_languages)
3303 AC_SUBST(cc_set_by_configure)
3304 AC_SUBST(quoted_cc_set_by_configure)
3305 AC_SUBST(cpp_install_dir)
3306 AC_SUBST(xmake_file)
3307 AC_SUBST(tmake_file)
3308 AC_SUBST(extra_gcc_objs)
3309 AC_SUBST(extra_headers_list)
3310 AC_SUBST(extra_objs)
3311 AC_SUBST(extra_parts)
3312 AC_SUBST(extra_passes)
3313 AC_SUBST(extra_programs)
3314 AC_SUBST(float_h_file)
3315 AC_SUBST(gcc_config_arguments)
3316 AC_SUBST(gcc_gxx_include_dir)
3317 AC_SUBST(libstdcxx_incdir)
3318 AC_SUBST(host_exeext)
3319 AC_SUBST(host_xm_file_list)
3320 AC_SUBST(host_xm_include_list)
3321 AC_SUBST(host_xm_defines)
3322 AC_SUBST(out_host_hook_obj)
3324 AC_SUBST(lang_opt_files)
3325 AC_SUBST(lang_specs_files)
3326 AC_SUBST(lang_tree_files)
3327 AC_SUBST(local_prefix)
3329 AC_SUBST(objc_boehm_gc)
3331 AC_SUBST(out_object_file)
3332 AC_SUBST(stage_prefix_set_by_configure)
3333 AC_SUBST(quoted_stage_prefix_set_by_configure)
3334 AC_SUBST(thread_file)
3335 AC_SUBST(tm_file_list)
3336 AC_SUBST(tm_include_list)
3337 AC_SUBST(tm_defines)
3338 AC_SUBST(tm_p_file_list)
3339 AC_SUBST(tm_p_include_list)
3340 AC_SUBST(xm_file_list)
3341 AC_SUBST(xm_include_list)
3342 AC_SUBST(xm_defines)
3343 AC_SUBST(c_target_objs)
3344 AC_SUBST(cxx_target_objs)
3345 AC_SUBST(target_cpu_default)
3347 AC_SUBST_FILE(language_hooks)
3350 if test x${build} = x${host} ; then
3351 if test x${host} = x${target} ; then
3352 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3354 echo "Links are now set up to build a cross-compiler" 1>&2
3355 echo " from ${host} to ${target}." 1>&2
3358 if test x${host} = x${target} ; then
3359 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3360 echo " for ${target}." 1>&2
3362 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3363 echo " from ${host} to ${target}." 1>&2
3367 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3368 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3370 # Configure the subdirectories
3371 # AC_CONFIG_SUBDIRS($subdirs)
3373 # Create the Makefile
3374 # and configure language subdirectories
3375 AC_CONFIG_FILES($all_outputs)
3377 AC_CONFIG_COMMANDS([default],
3379 case ${CONFIG_HEADERS} in
3380 *auto-host.h:config.in*)
3383 # Make sure all the subdirs exist.
3384 for d in $subdirs doc build
3386 test -d $d || mkdir $d
3388 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3389 # bootstrapping and the installation procedure can still use
3390 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3391 # FLAGS_TO_PASS has been modified to solve the problem there.
3392 # This is virtually a duplicate of what happens in configure.lang; we do
3393 # an extra check to make sure this only happens if ln -s can be used.
3396 for d in ${subdirs} ; do
3397 STARTDIR=`${PWDCMD-pwd}`
3399 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3402 $LN_S ../$t $t 2>/dev/null
3409 [subdirs='$subdirs'])