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 _GCC_TOPLEV_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='${libsubdir}/include/c++'
137 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
138 changequote(<<, >>)dnl
139 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${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 # ----------------------
215 # Find default assembler
216 # ----------------------
220 [ --with-gnu-as arrange to work with GNU as],
221 gas_flag="$with_gnu_as",
225 [ --with-as arrange to use the specified as (full pathname)],
226 DEFAULT_ASSEMBLER="$with_as")
227 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
228 if test ! -x "$DEFAULT_ASSEMBLER"; then
229 AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
230 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
233 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
234 [Define to enable the use of a default assembler.])
237 AC_MSG_CHECKING([whether a default assembler was specified])
238 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
239 if test x"$gas_flag" = x"no"; then
240 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
242 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
252 # If a non-executable a.out is present (e.g. created by GNU as above even if
253 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
254 # file, even when creating an executable, so an execution test fails.
255 # Remove possible default executable files to avoid this.
257 # FIXME: This really belongs into AC_PROG_CC and can be removed once
258 # Autoconf includes it.
259 rm -f a.out a.exe b.out
261 # Find the native compiler
264 # autoconf is lame and doesn't give us any substitution variable for this.
265 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
266 NO_MINUS_C_MINUS_O=yes
268 OUTPUT_OPTION='-o $@'
270 AC_SUBST(NO_MINUS_C_MINUS_O)
271 AC_SUBST(OUTPUT_OPTION)
273 # -------------------------
274 # Check C compiler features
275 # -------------------------
282 # sizeof(char) is 1 by definition.
283 AC_COMPILE_CHECK_SIZEOF(void *)
284 AC_COMPILE_CHECK_SIZEOF(short)
285 AC_COMPILE_CHECK_SIZEOF(int)
286 AC_COMPILE_CHECK_SIZEOF(long)
287 if test $ac_cv_c_long_long = yes; then
288 AC_COMPILE_CHECK_SIZEOF(long long)
290 if test $ac_cv_c___int64 = yes; then
291 AC_COMPILE_CHECK_SIZEOF(__int64)
294 # ---------------------
295 # Warnings and checking
296 # ---------------------
298 # Check $CC warning features (if it's GCC).
299 # We want to use -pedantic, but we don't want warnings about
302 # So, we only use -pedantic if we can disable those warnings.
305 [whether ${CC} accepts -Wno-long-long],
306 [ac_cv_prog_cc_w_no_long_long],
307 [save_CFLAGS="$CFLAGS"
308 CFLAGS="-Wno-long-long"
309 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
310 [ac_cv_prog_cc_w_no_long_long=yes],
311 [ac_cv_prog_cc_w_no_long_long=no])
312 CFLAGS="$save_CFLAGS"
316 [whether ${CC} accepts -Wno-variadic-macros],
317 [ac_cv_prog_cc_w_no_variadic_macros],
318 [save_CFLAGS="$CFLAGS"
319 CFLAGS="-Wno-variadic-macros"
320 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
321 [ac_cv_prog_cc_w_no_variadic_macros=yes],
322 [ac_cv_prog_cc_w_no_variadic_macros=no])
323 CFLAGS="$save_CFLAGS"
327 if test $ac_cv_prog_cc_w_no_long_long = yes \
328 && test $ac_cv_prog_cc_w_no_variadic_macros = yes ; then
329 strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros"
331 AC_SUBST(strict1_warn)
333 # Add -Wold-style-definition if it's accepted
335 [whether ${CC} accepts -Wold-style-definition],
336 [ac_cv_prog_cc_w_old_style_definition],
337 [save_CFLAGS="$CFLAGS"
338 CFLAGS="-Wold-style-definition"
339 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
340 [ac_cv_prog_cc_w_old_style_definition=yes],
341 [ac_cv_prog_cc_w_old_style_definition=no])
342 CFLAGS="$save_CFLAGS"
344 if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
345 strict1_warn="${strict1_warn} -Wold-style-definition"
348 # Enable -Werror, period.
349 AC_ARG_ENABLE(werror_always,
350 [ --enable-werror-always enable -Werror always], [],
351 [enable_werror_always=no])
352 if test x${enable_werror_always} = xyes ; then
353 strict1_warn="${strict1_warn} -Werror"
357 # If the native compiler is GCC, we can enable warnings even in stage1.
358 # That's useful for people building cross-compilers, or just running a
361 if test "x$GCC" = "xyes"; then
362 warn_cflags='$(GCC_WARN_CFLAGS)'
364 AC_SUBST(warn_cflags)
366 # Enable -Werror in bootstrap stage2 and later.
367 # Change the default to "no" on release branches.
368 AC_ARG_ENABLE(werror,
369 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
371 if test x$enable_werror = xyes ; then
376 # Enable expensive internal checks
377 AC_ARG_ENABLE(checking,
378 [ --enable-checking[=LIST]
379 enable expensive run-time checks. With LIST,
380 enable only specific categories of checks.
381 Categories are: misc,tree,rtl,rtlflag,gc,gcac,fold;
382 default is misc,tree,gc,rtlflag],
388 ac_gc_always_collect=
390 case "${enableval}" in
391 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
392 ac_rtlflag_checking=1 ;;
394 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
395 set fnord $enableval; shift
400 misc) ac_checking=1 ;;
401 tree) ac_tree_checking=1 ;;
402 rtlflag) ac_rtlflag_checking=1 ;;
403 rtl) ac_rtl_checking=1 ;;
404 gc) ac_gc_checking=1 ;;
405 gcac) ac_gc_always_collect=1 ;;
406 fold) ac_fold_checking=1 ;;
407 valgrind) ac_checking_valgrind=1 ;;
408 *) AC_MSG_ERROR(unknown check category $check) ;;
414 # Enable some checks by default for development versions of GCC
415 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
417 if test x$ac_checking != x ; then
418 AC_DEFINE(ENABLE_CHECKING, 1,
419 [Define if you want more run-time sanity checks. This one gets a grab
420 bag of miscellaneous but relatively cheap checks.])
421 nocommon_flag=-fno-common
423 AC_SUBST(nocommon_flag)
424 if test x$ac_tree_checking != x ; then
425 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
426 [Define if you want all operations on trees (the basic data
427 structure of the front ends) to be checked for dynamic type safety
428 at runtime. This is moderately expensive. The tree browser debugging
429 routines will also be enabled by this option.
431 TREEBROWSER=tree-browser.o
433 AC_SUBST(TREEBROWSER)
434 if test x$ac_rtl_checking != x ; then
435 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
436 [Define if you want all operations on RTL (the basic data structure
437 of the optimizer and back end) to be checked for dynamic type safety
438 at runtime. This is quite expensive.])
440 if test x$ac_rtlflag_checking != x ; then
441 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
442 [Define if you want RTL flag accesses to be checked against the RTL
443 codes that are supported for each access macro. This is relatively
446 if test x$ac_gc_checking != x ; then
447 AC_DEFINE(ENABLE_GC_CHECKING, 1,
448 [Define if you want the garbage collector to do object poisoning and
449 other memory allocation checks. This is quite expensive.])
451 if test x$ac_gc_always_collect != x ; then
452 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
453 [Define if you want the garbage collector to operate in maximally
454 paranoid mode, validating the entire heap and collecting garbage at
455 every opportunity. This is extremely expensive.])
457 if test x$ac_fold_checking != x ; then
458 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
459 [Define if you want fold checked that it never destructs its argument.
460 This is quite expensive.])
462 valgrind_path_defines=
465 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
466 dnl # an if statement. This was the source of very frustrating bugs
467 dnl # in converting to autoconf 2.5x!
468 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
470 if test x$ac_checking_valgrind != x ; then
471 # It is certainly possible that there's valgrind but no valgrind.h.
472 # GCC relies on making annotations so we must have both.
473 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
475 [#include <valgrind/memcheck.h>
476 #ifndef VALGRIND_DISCARD
477 #error VALGRIND_DISCARD not defined
479 [gcc_cv_header_valgrind_memcheck_h=yes],
480 [gcc_cv_header_valgrind_memcheck_h=no])
481 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
482 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
484 [#include <memcheck.h>
485 #ifndef VALGRIND_DISCARD
486 #error VALGRIND_DISCARD not defined
488 [gcc_cv_header_memcheck_h=yes],
489 gcc_cv_header_memcheck_h=no)
490 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
491 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
492 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
493 if test "x$valgrind_path" = "x" \
494 || (test $have_valgrind_h = no \
495 && test $gcc_cv_header_memcheck_h = no \
496 && test $gcc_cv_header_valgrind_memcheck_h = no); then
497 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
499 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
500 valgrind_command="$valgrind_path -q"
501 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
502 [Define if you want to run subprograms and generated programs
503 through valgrind (a memory checker). This is extremely expensive.])
504 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
505 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
506 [Define if valgrind's valgrind/memcheck.h header is installed.])
508 if test $gcc_cv_header_memcheck_h = yes; then
509 AC_DEFINE(HAVE_MEMCHECK_H, 1,
510 [Define if valgrind's memcheck.h header is installed.])
513 AC_SUBST(valgrind_path_defines)
514 AC_SUBST(valgrind_command)
516 AC_ARG_ENABLE(mapped-location,
517 [ --enable-mapped-location location_t is fileline integer cookie],,
518 enable_mapped_location=no)
520 if test "$enable_mapped_location" = yes ; then
521 AC_DEFINE(USE_MAPPED_LOCATION, 1,
522 [Define if location_t is fileline integer cookie.])
525 # Enable code coverage collection
526 AC_ARG_ENABLE(coverage,
527 [ --enable-coverage[=LEVEL]
528 enable compiler\'s code coverage collection.
529 Use to measure compiler performance and locate
530 unused parts of the compiler. With LEVEL, specify
531 optimization. Values are opt, noopt,
533 [case "${enableval}" in
535 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
538 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
541 # a.k.a. --disable-coverage
545 AC_MSG_ERROR(unknown coverage setting $enableval)
549 AC_SUBST(coverage_flags)
551 AC_ARG_ENABLE(gather-detailed-mem-stats,
552 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
553 [enable_gather_detailed_mem_stats=no])
554 if test x$enable_gather_detailed_mem_stats = xyes ; then
555 AC_DEFINE(GATHER_STATISTICS, 1,
556 [Define to enable detailed memory allocation stats gathering.])
559 # -------------------------------
560 # Miscenalleous configure options
561 # -------------------------------
565 [ --with-stabs arrange to use stabs instead of host debug format],
569 # Determine whether or not multilibs are enabled.
570 AC_ARG_ENABLE(multilib,
571 [ --enable-multilib enable library support for multiple ABIs],
572 [], [enable_multilib=yes])
573 AC_SUBST(enable_multilib)
575 # Enable __cxa_atexit for C++.
576 AC_ARG_ENABLE(__cxa_atexit,
577 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
581 # Pass with no value to take the default
582 # Pass with a value to specify a thread package
583 AC_ARG_ENABLE(threads,
584 [ --enable-threads enable thread usage for target GCC
585 --enable-threads=LIB use LIB thread package for target GCC],,
588 AC_ARG_ENABLE(objc-gc,
589 [ --enable-objc-gc enable the use of Boehm's garbage collector with
590 the GNU Objective-C runtime],
591 if test x$enable_objc_gc = xno; then
599 [ --with-dwarf2 force the default debug format to be DWARF 2],
600 dwarf2="$with_dwarf2",
603 AC_ARG_ENABLE(shared,
604 [ --disable-shared don't provide a shared libgcc],
606 case $enable_shared in
610 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
611 for pkg in $enableval; do
612 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
619 ], [enable_shared=yes])
620 AC_SUBST(enable_shared)
623 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
625 case ${with_sysroot} in
626 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
627 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
630 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
631 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
633 if test "x$exec_prefix" = xNONE; then
634 if test "x$prefix" = xNONE; then
635 test_prefix=/usr/local
640 test_prefix=$exec_prefix
642 case ${TARGET_SYSTEM_ROOT} in
643 "${test_prefix}"|"${test_prefix}/"*|\
644 '${exec_prefix}'|'${exec_prefix}/'*)
645 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
646 TARGET_SYSTEM_ROOT_DEFINE="$t"
651 TARGET_SYSTEM_ROOT_DEFINE=
652 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
654 AC_SUBST(TARGET_SYSTEM_ROOT)
655 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
656 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
658 # Build with intermodule optimisations
659 AC_ARG_ENABLE(intermodule,
660 [ --enable-intermodule build the compiler in one step],
661 [case ${enable_intermodule} in
662 yes) onestep="-onestep";;
668 # Sanity check enable_languages in case someone does not run the toplevel
669 # configure # script.
670 AC_ARG_ENABLE(languages,
671 [ --enable-languages=LIST specify which front-ends to build],
672 [case ,${enable_languages}, in
674 # go safe -- we cannot be much sure without the toplevel
676 # analysis of which target libs are present and usable
680 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
685 enable_languages=c,${enable_languages}
688 [enable_languages=c])
691 for lang in ${srcdir}/*/config-lang.in
694 # The odd quoting in the next line works around
695 # an apparent bug in bash 1.12 on linux.
697 ${srcdir}/[*]/config-lang.in) ;;
699 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
700 if test "x$lang_alias" = x
702 echo "$lang doesn't set \$language." 1>&2
705 case ",$enable_languages," in
707 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
715 # -------------------------
716 # Checks for other programs
717 # -------------------------
721 # Find some useful tools
723 # We need awk to run opts.sh (to create options.c and options.h).
724 # Bail out if it's missing.
726 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
734 # See if cmp has --ignore-initial.
735 gcc_AC_PROG_CMP_IGNORE_INITIAL
737 # See if we have the mktemp command.
738 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
740 # Do we have a single-tree copy of texinfo?
741 if test -f $srcdir/../texinfo/Makefile.in; then
742 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
743 gcc_cv_prog_makeinfo_modern=yes
744 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
746 # See if makeinfo has been installed and is modern enough
747 # that we can use it.
748 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
749 [GNU texinfo.* \([0-9][0-9.]*\)],
753 if test $gcc_cv_prog_makeinfo_modern = no; then
755 *** Makeinfo is missing or too old.
756 *** Info documentation will not be built.])
759 BUILD_INFO=info AC_SUBST(BUILD_INFO)
762 # Is pod2man recent enough to regenerate manpages?
763 AC_MSG_CHECKING([for recent Pod::Man])
764 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
766 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
773 dnl Don't use AC_PROG_LEX; we insist on flex.
774 dnl LEXLIB is not useful in gcc.
775 if test x${build} = x${host} && test -f $srcdir/../flex/skel.c; then
776 FLEX='$(objdir)/../flex/flex'
778 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
782 # The -L switch is so bison can find its skeleton file.
783 if test x${build} = x${host} && test -f $srcdir/../bison/bison.simple; then
784 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
786 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
789 # --------------------
790 # Checks for C headers
791 # --------------------
793 AC_MSG_CHECKING(for GNU C library)
794 AC_CACHE_VAL(gcc_cv_glibc,
796 [#include <features.h>],[
797 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
798 #error Not a GNU C library system
802 AC_MSG_RESULT($gcc_cv_glibc)
803 if test $gcc_cv_glibc = yes; then
804 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
807 # Need to reject headers which give warnings, so that the -Werror bootstrap
808 # works later. *sigh* This needs to come before all header checks.
816 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
817 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
818 sys/resource.h sys/param.h sys/times.h sys/stat.h \
819 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
821 # Check for thread headers.
822 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
823 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
825 # These tests can't be done till we know if we have limits.h.
833 # Stage specific cflags for build.
839 stage1_cflags="-Wa,-J"
845 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
846 # sources; use -no-cpp-precomp to get to GNU cpp.
847 # Apple's GCC has bugs in designated initializer handling, so disable
849 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
852 AC_SUBST(stage1_cflags)
854 # These libraries may be used by collect2.
855 # We may need a special search path to get them linked.
856 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
858 for libs in '' -lld -lmld \
859 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
860 '-L/usr/lib/cmplrs/cc3.11 -lmld'
863 AC_TRY_LINK_FUNC(ldopen,
864 [gcc_cv_collect2_libs="$libs"; break])
867 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
868 case $gcc_cv_collect2_libs in
870 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
872 AC_SUBST(COLLECT2_LIBS)
874 # When building Ada code on Alpha, we need exc_resume which is usually in
875 # -lexc. So test for it.
878 AC_SEARCH_LIBS(exc_resume, exc)
881 AC_SUBST(GNAT_LIBEXC)
883 # Some systems put ldexp and frexp in libm instead of libc; assume
884 # they're both in the same place. jcf-dump needs them.
887 AC_SEARCH_LIBS(ldexp, m)
892 # Use <inttypes.h> only if it exists,
893 # doesn't clash with <sys/types.h>, and declares intmax_t.
894 AC_MSG_CHECKING(for inttypes.h)
895 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
897 [#include <sys/types.h>
898 #include <inttypes.h>],
900 [gcc_cv_header_inttypes_h=yes],
901 gcc_cv_header_inttypes_h=no)])
902 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
903 if test $gcc_cv_header_inttypes_h = yes; then
904 AC_DEFINE(HAVE_INTTYPES_H, 1,
905 [Define if you have a working <inttypes.h> header file.])
908 dnl Disabled until we have a complete test for buggy enum bitfields.
909 dnl gcc_AC_C_ENUM_BF_UNSIGNED
911 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
912 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
913 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
914 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
917 if test x$ac_cv_func_mbstowcs = xyes; then
918 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
919 [ AC_TRY_RUN([#include <stdlib.h>
925 gcc_cv_func_mbstowcs_works=yes,
926 gcc_cv_func_mbstowcs_works=no,
927 gcc_cv_func_mbstowcs_works=yes)])
928 if test x$gcc_cv_func_mbstowcs_works = xyes; then
929 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
930 [Define this macro if mbstowcs does not crash when its
931 first argument is NULL.])
935 AC_CHECK_TYPE(ssize_t, int)
937 # Try to determine the array type of the second argument of getgroups
938 # for the target system (int or gid_t).
940 if test "${target}" = "${build}"; then
941 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
944 # This condition may need some tweaking. It should include all
945 # targets where the array type of the second argument of getgroups
946 # is int and the type of gid_t is not equivalent to int.
947 *-*-sunos* | *-*-ultrix*)
948 TARGET_GETGROUPS_T=int
951 TARGET_GETGROUPS_T=gid_t
955 AC_SUBST(TARGET_GETGROUPS_T)
957 gcc_AC_FUNC_PRINTF_PTR
958 gcc_AC_FUNC_MMAP_BLACKLIST
962 # Under VMS, vfork works very differently than on Unix. The standard test
963 # won't work, and it isn't easily adaptable. It makes more sense to
965 ac_cv_func_vfork_works=yes
971 # Until we have in-tree GNU iconv:
973 AC_SUBST(LIBICONV_DEP)
977 # We will need to find libiberty.h and ansidecl.h
978 saved_CFLAGS="$CFLAGS"
979 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
980 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
981 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
982 fprintf_unlocked strstr errno snprintf vasprintf \
983 malloc realloc calloc free basename getopt clock, , ,[
984 #include "ansidecl.h"
985 #include "system.h"])
987 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
988 #include "ansidecl.h"
990 #ifdef HAVE_SYS_RESOURCE_H
991 #include <sys/resource.h>
996 #include "ansidecl.h"
998 #ifdef HAVE_SYS_RESOURCE_H
999 #include <sys/resource.h>
1001 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
1002 [Define to \`long' if <sys/resource.h> doesn't define.])])
1004 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1005 #include "ansidecl.h"
1012 gcc_AC_CHECK_DECLS(times, , ,[
1013 #include "ansidecl.h"
1015 #ifdef HAVE_SYS_TIMES_H
1016 #include <sys/times.h>
1020 # More time-related stuff.
1021 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1023 #include "ansidecl.h"
1025 #ifdef HAVE_SYS_TIMES_H
1026 #include <sys/times.h>
1028 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
1029 if test $ac_cv_struct_tms = yes; then
1030 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1031 [Define if <sys/times.h> defines struct tms.])
1034 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1035 # revisit after autoconf 2.50.
1036 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1038 #include "ansidecl.h"
1040 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
1041 if test $gcc_cv_type_clock_t = yes; then
1042 AC_DEFINE(HAVE_CLOCK_T, 1,
1043 [Define if <time.h> defines clock_t.])
1046 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1047 CFLAGS="$saved_CFLAGS"
1049 gcc_AC_INITFINI_ARRAY
1051 # mkdir takes a single argument on some systems.
1052 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1060 # With Setjmp/Longjmp based exception handling.
1061 AC_ARG_ENABLE(sjlj-exceptions,
1062 [ --enable-sjlj-exceptions
1063 arrange to use setjmp/longjmp exception handling],
1064 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1065 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1066 [Define 0/1 to force the choice for exception handling model.])])
1068 if test x$host = x$target; then
1069 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
1071 use_libunwind_default=no
1073 # Use libunwind based exception handling.
1074 AC_ARG_ENABLE(libunwind-exceptions,
1075 [ --enable-libunwind-exceptions force use libunwind for exceptions],
1076 use_libunwind_exceptions=$enableval,
1077 use_libunwind_exceptions=$use_libunwind_default)
1078 if test x"$use_libunwind_exceptions" = xyes; then
1079 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
1080 [Define if gcc should use -lunwind.])
1083 # --------------------------------------------------------
1084 # Build, host, and target specific configuration fragments
1085 # --------------------------------------------------------
1087 # Collect build-machine-specific information.
1088 . ${srcdir}/config.build
1090 # Collect host-machine-specific information.
1091 . ${srcdir}/config.host
1095 # Collect target-machine-specific information.
1096 . ${srcdir}/config.gcc
1098 extra_objs="${host_extra_objs} ${extra_objs}"
1099 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1101 # Default the target-machine variables that were not explicitly set.
1102 if test x"$tm_file" = x
1103 then tm_file=$cpu_type/$cpu_type.h; fi
1105 if test x"$extra_headers" = x
1106 then extra_headers=; fi
1108 if test x$md_file = x
1109 then md_file=$cpu_type/$cpu_type.md; fi
1111 if test x$out_file = x
1112 then out_file=$cpu_type/$cpu_type.c; fi
1114 if test x"$tmake_file" = x
1115 then tmake_file=$cpu_type/t-$cpu_type
1118 if test x"$dwarf2" = xyes
1119 then tm_file="$tm_file tm-dwarf2.h"
1122 # Say what files are being used for the output code and MD file.
1123 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1124 echo "Using \`$srcdir/config/$md_file' as machine description file."
1126 # If any of the xm_file variables contain nonexistent files, warn
1127 # about them and drop them.
1130 for x in $build_xm_file; do
1131 if test -f $srcdir/config/$x
1133 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1139 for x in $host_xm_file; do
1140 if test -f $srcdir/config/$x
1142 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1148 for x in $xm_file; do
1149 if test -f $srcdir/config/$x
1151 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1157 for f in $tm_file; do
1160 if test $count = ax; then
1161 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1163 echo "Using the following target machine macro files:"
1164 for f in $tm_file; do
1165 echo " $srcdir/config/$f"
1169 if test x$need_64bit_hwint = xyes; then
1170 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1171 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1175 for f in $host_xm_file; do
1178 if test $count = a; then
1180 elif test $count = ax; then
1181 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1183 echo "Using the following host machine macro files:"
1184 for f in $host_xm_file; do
1185 echo " $srcdir/config/$f"
1188 echo "Using ${out_host_hook_obj} for host machine hooks."
1190 if test "$host_xm_file" != "$build_xm_file"; then
1192 for f in $build_xm_file; do
1195 if test $count = a; then
1197 elif test $count = ax; then
1198 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1200 echo "Using the following build machine macro files:"
1201 for f in $build_xm_file; do
1202 echo " $srcdir/config/$f"
1211 # Check if a valid thread package
1212 case ${enable_threads} in
1215 target_thread_file='single'
1219 target_thread_file='single'
1221 aix | dce | gnat | irix | posix | rtems | \
1222 single | solaris | vxworks | win32 )
1223 target_thread_file=${enable_threads}
1226 echo "${enable_threads} is an unknown thread package" 1>&2
1231 if test x${thread_file} = x; then
1232 # No thread file set by target-specific clauses in config.gcc,
1233 # so use file chosen by default logic above
1234 thread_file=${target_thread_file}
1237 # Make gthr-default.h if we have a thread file.
1239 if test $thread_file != single; then
1240 rm -f gthr-default.h
1241 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1242 gthread_flags=-DHAVE_GTHR_DEFAULT
1244 AC_SUBST(gthread_flags)
1250 if test x$enable___cxa_atexit = xyes || \
1251 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1252 AC_CHECK_FUNC(__cxa_atexit,
1253 [AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1254 [Define if you want to use __cxa_atexit, rather than atexit, to
1255 register C++ destructors for local statics and global objects.
1256 This is essential for fully standards-compliant handling of
1257 destructors, but requires __cxa_atexit in libc.])],
1258 echo "__cxa_atexit can't be enabled on this target")
1261 # Look for a file containing extra machine modes.
1262 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1263 extra_modes_file='$(srcdir)'/config/${extra_modes}
1264 AC_SUBST(extra_modes_file)
1265 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1266 [Define to the name of a file containing a list of extra machine modes
1267 for this architecture.])
1270 # auto-host.h is the file containing items generated by autoconf and is
1271 # the first file included by config.h.
1272 # If host=build, it is correct to have bconfig include auto-host.h
1273 # as well. If host!=build, we are in error and need to do more
1274 # work to find out the build config parameters.
1275 if test x$host = x$build
1277 build_auto=auto-host.h
1280 # We create a subdir, then run autoconf in the subdir.
1281 # To prevent recursion we set host and build for the new
1282 # invocation of configure to the build for this invocation
1289 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1290 *) realsrcdir=../${srcdir};;
1292 saved_CFLAGS="${CFLAGS}"
1293 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1294 ${realsrcdir}/configure \
1295 --enable-languages=${enable_languages-all} \
1296 --target=$target_alias --host=$build_alias --build=$build_alias
1297 CFLAGS="${saved_CFLAGS}"
1299 # We just finished tests for the build machine, so rename
1300 # the file auto-build.h in the gcc directory.
1301 mv auto-host.h ../auto-build.h
1304 build_auto=auto-build.h
1305 FORBUILD=../${build_subdir}
1309 tm_file="${tm_file} defaults.h"
1310 tm_p_file="${tm_p_file} tm-preds.h"
1311 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1312 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1313 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1314 # put this back in temporarily.
1315 xm_file="ansidecl.h ${xm_file}"
1321 # Get the version trigger filename from the toplevel
1322 if test "${with_gcc_version_trigger+set}" = set; then
1323 gcc_version_trigger=$with_gcc_version_trigger
1325 gcc_version_trigger=${srcdir}/version.c
1328 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1329 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1331 # Compile in configure arguments.
1332 if test -f configargs.h ; then
1333 # Being re-configured.
1334 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1335 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1337 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1340 # Double all backslashes and backslash all quotes to turn
1341 # gcc_config_arguments into a C string.
1342 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1343 $gcc_config_arguments
1345 gcc_config_arguments_str=`cat conftest.out`
1348 cat > configargs.h <<EOF
1349 /* Generated automatically. */
1350 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1351 static const char thread_model[] = "$thread_file";
1353 static const struct {
1354 const char *name, *value;
1355 } configure_default_options[] = $configure_default_options;
1359 # Internationalization
1361 VERSION="$gcc_version"
1365 ZW_GNU_GETTEXT_SISTER_DIR
1367 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1368 # -liconv on the link line twice.
1369 case "$LIBINTL" in *$LIBICONV*)
1373 # Windows32 Registry support for specifying GCC installation paths.
1374 AC_ARG_ENABLE(win32-registry,
1375 [ --disable-win32-registry
1376 disable lookup of installation paths in the
1377 Registry on Windows hosts
1378 --enable-win32-registry enable registry lookup (default)
1379 --enable-win32-registry=KEY
1380 use KEY instead of GCC version as the last portion
1381 of the registry key],,)
1383 win32 | pe | cygwin* | mingw32* | uwin*)
1384 AC_MSG_CHECKING(whether windows registry support is requested)
1385 if test "x$enable_win32_registry" != xno; then
1386 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1387 [Define to 1 if installation paths should be looked up in Windows32
1388 Registry. Ignored on non windows32 hosts.])
1390 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1395 # Check if user specified a different registry key.
1396 case "x${enable_win32_registry}" in
1399 gcc_cv_win32_registry_key="$VERSION"
1402 # no registry lookup.
1403 gcc_cv_win32_registry_key=''
1406 # user-specified key.
1407 gcc_cv_win32_registry_key="$enable_win32_registry"
1411 if test "x$enable_win32_registry" != xno; then
1412 AC_MSG_CHECKING(registry key on windows hosts)
1413 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1414 [Define to be the last portion of registry key on windows hosts.])
1415 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1420 # Get an absolute path to the GCC top-level source directory
1421 holddir=`${PWDCMD-pwd}`
1423 topdir=`${PWDCMD-pwd}`
1426 # Conditionalize the makefile for this host machine.
1428 for f in ${host_xmake_file}
1430 if test -f ${srcdir}/config/$f
1432 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1436 # Conditionalize the makefile for this target machine.
1438 for f in ${tmake_file}
1440 if test -f ${srcdir}/config/$f
1442 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1445 tmake_file="${tmake_file_}"
1447 symbolic_link='ln -s'
1449 # If the host doesn't support symlinks, modify CC in
1450 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1451 # Otherwise, we can use "CC=$(CC)".
1453 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1455 cc_set_by_configure="\$(CC)"
1456 quoted_cc_set_by_configure="\$(CC)"
1457 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1458 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1461 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1463 symbolic_link="cp -p"
1467 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1468 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1469 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1470 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1474 out_object_file=`basename $out_file .c`.o
1478 for f in $tm_file; do
1481 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1482 tm_include_list="${tm_include_list} $f"
1485 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1486 tm_include_list="${tm_include_list} config/$f"
1493 for f in $tm_p_file; do
1496 tm_p_file_list="${tm_p_file_list} $f"
1497 tm_p_include_list="${tm_p_include_list} $f"
1500 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1501 tm_p_include_list="${tm_p_include_list} config/$f"
1507 for f in $xm_file; do
1510 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1511 xm_include_list="${xm_include_list} $f"
1514 xm_file_list="${xm_file_list} $f"
1515 xm_include_list="${xm_include_list} $f"
1518 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1519 xm_include_list="${xm_include_list} config/$f"
1525 host_xm_include_list=
1526 for f in $host_xm_file; do
1529 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1530 host_xm_include_list="${host_xm_include_list} $f"
1533 host_xm_file_list="${host_xm_file_list} $f"
1534 host_xm_include_list="${host_xm_include_list} $f"
1537 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1538 host_xm_include_list="${host_xm_include_list} config/$f"
1544 for f in $build_xm_file; do
1547 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1548 build_xm_include_list="${build_xm_include_list} $f"
1550 auto-build.h | auto-host.h )
1551 build_xm_file_list="${build_xm_file_list} $f"
1552 build_xm_include_list="${build_xm_include_list} $f"
1555 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1556 build_xm_include_list="${build_xm_include_list} config/$f"
1561 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1562 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1563 CROSS= AC_SUBST(CROSS)
1564 ALL=all.internal AC_SUBST(ALL)
1565 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1566 if test x$host != x$target
1568 CROSS="-DCROSS_COMPILE"
1570 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1571 case "$host","$target" in
1572 # Darwin crosses can use the host system's libraries and headers,
1573 # because of the fat library support. Of course, it must be the
1574 # same version of Darwin on both sides. Allow the user to
1575 # just say --target=foo-darwin without a version number to mean
1576 # "the version on this system".
1577 *-*-darwin*,*-*-darwin*)
1578 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1579 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1580 if test $hostos = $targetos -o $targetos = darwin ; then
1582 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1587 i?86-*-*,x86_64-*-* \
1588 | powerpc*-*-*,powerpc64*-*-*)
1589 CROSS="$CROSS -DNATIVE_CROSS" ;;
1591 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1592 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1593 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1596 # If this is a cross-compiler that does not
1597 # have its own set of headers then define
1600 # If this is using newlib, without having the headers available now,
1601 # then define inhibit_libc in LIBGCC2_CFLAGS.
1602 # This prevents libgcc2 from containing any code which requires libc
1605 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1606 test x$with_newlib = xyes ; } &&
1607 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1608 inhibit_libc=-Dinhibit_libc
1610 AC_SUBST(inhibit_libc)
1612 # When building gcc with a cross-compiler, we need to adjust things so
1613 # that the generator programs are still built with the native compiler.
1614 # Also, we cannot run fixincludes or fix-header.
1616 # These are the normal (build=host) settings:
1617 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1618 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1619 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1620 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1622 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1624 # Possibly disable fixproto, on a per-target basis.
1625 case ${use_fixproto} in
1630 STMP_FIXPROTO=stmp-fixproto
1633 AC_SUBST(STMP_FIXPROTO)
1635 # And these apply if build != host, or we are generating coverage data
1636 if test x$build != x$host || test "x$coverage_flags" != x
1639 BUILD_PREFIX_1=build-
1640 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1642 if test "x$TARGET_SYSTEM_ROOT" = x; then
1648 # Expand extra_headers to include complete path.
1649 # This substitutes for lots of t-* files.
1651 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1652 for file in ${extra_headers} ; do
1653 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1656 # Define collect2 in Makefile.
1657 case $host_can_use_collect2 in
1659 *) collect2='collect2$(exeext)' ;;
1661 AC_SUBST([collect2])
1663 # Add a definition of USE_COLLECT2 if system wants one.
1664 case $use_collect2 in
1665 no) use_collect2= ;;
1668 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1669 xm_defines="${xm_defines} USE_COLLECT2"
1670 case $host_can_use_collect2 in
1672 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1678 # ---------------------------
1679 # Assembler & linker features
1680 # ---------------------------
1682 # Identify the assembler which will work hand-in-glove with the newly
1683 # built GCC, so that we can examine its features. This is the assembler
1684 # which will be driven by the driver program.
1686 # If build != host, and we aren't building gas in-tree, we identify a
1687 # build->target assembler and hope that it will have the same features
1688 # as the host->target assembler we'll be using.
1689 AC_MSG_CHECKING(what assembler to use)
1692 gcc_cv_gas_major_version=
1693 gcc_cv_gas_minor_version=
1694 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1695 if test -x "$DEFAULT_ASSEMBLER"; then
1696 gcc_cv_as="$DEFAULT_ASSEMBLER"
1697 elif test -x as$host_exeext; then
1698 # Build using assembler in the current directory.
1699 gcc_cv_as=./as$host_exeext
1700 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1701 && test -f ../gas/Makefile \
1702 && test x$build = x$host; then
1703 # Single tree build which includes gas. We want to prefer it
1704 # over whatever linker top-level may have detected, since
1705 # we'll use what we're building after installation anyway.
1707 _gcc_COMPUTE_GAS_VERSION
1708 rm -f as$host_exeext
1709 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1710 in_tree_gas_is_elf=no
1711 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1712 || (grep 'obj_format = multi' ../gas/Makefile \
1713 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1715 in_tree_gas_is_elf=yes
1717 m4_pattern_allow([AS_FOR_TARGET])dnl
1718 elif test -x "$AS_FOR_TARGET"; then
1719 gcc_cv_as="$AS_FOR_TARGET"
1720 elif test -x "$AS" && test x$host = x$target; then
1724 if test "x$gcc_cv_as" = x; then
1725 # Search the same directories that the installed compiler will
1726 # search. Else we may find the wrong assembler and lose. If we
1727 # do not find a suitable assembler binary, then try the user's
1730 # Also note we have to check MD_EXEC_PREFIX before checking the
1731 # user's path. Unfortunately, there is no good way to get at the
1732 # value of MD_EXEC_PREFIX here. So we do a brute force search
1733 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1734 # to be fixed as part of the make/configure rewrite too.
1736 if test "x$exec_prefix" = xNONE; then
1737 if test "x$prefix" = xNONE; then
1738 test_prefix=/usr/local
1743 test_prefix=$exec_prefix
1746 # If the loop below does not find an assembler, then use whatever
1747 # one we can find in the users's path.
1749 if test "x$program_prefix" != xNONE; then
1750 gcc_cv_as=${program_prefix}as$host_exeext
1752 gcc_cv_as=`echo as | sed "${program_transform_name}"`$host_exeext
1755 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1756 $test_prefix/libexec/gcc/$target_noncanonical \
1757 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1758 /usr/lib/gcc/$target_noncanonical \
1759 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1760 $test_prefix/$target_noncanonical/bin"
1762 if test x$host = x$target; then
1763 test_dirs="$test_dirs \
1768 /bsd43/usr/lib/cmplrs/cc \
1769 /usr/cross64/usr/bin \
1770 /usr/lib/cmplrs/cc \
1771 /sysv/usr/lib/cmplrs/cc \
1772 /svr4/usr/lib/cmplrs/cc \
1776 for dir in $test_dirs; do
1777 if test -x $dir/as$host_exeext; then
1778 gcc_cv_as=$dir/as$host_exeext
1783 case $in_tree_gas in
1785 AC_MSG_RESULT("newly built gas")
1788 AC_MSG_RESULT($gcc_cv_as)
1792 # Identify the linker which will work hand-in-glove with the newly
1793 # built GCC, so that we can examine its features. This is the linker
1794 # which will be driven by the driver program.
1796 # If build != host, and we aren't building gas in-tree, we identify a
1797 # build->target linker and hope that it will have the same features
1798 # as the host->target linker we'll be using.
1799 AC_MSG_CHECKING(what linker to use)
1802 gcc_cv_gld_major_version=
1803 gcc_cv_gld_minor_version=
1804 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1805 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1806 if test -x "$DEFAULT_LINKER"; then
1807 gcc_cv_ld="$DEFAULT_LINKER"
1808 elif test -x collect-ld$host_exeext; then
1809 # Build using linker in the current directory.
1810 gcc_cv_ld=./collect-ld$host_exeext
1811 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1812 && test -f ../ld/Makefile \
1813 && test x$build = x$host; then
1814 # Single tree build which includes ld. We want to prefer it
1815 # over whatever linker top-level may have detected, since
1816 # we'll use what we're building after installation anyway.
1818 in_tree_ld_is_elf=no
1819 if (grep 'EMUL = .*elf' ../ld/Makefile \
1820 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1821 in_tree_ld_is_elf=yes
1823 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
1826 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1828 if test x$gcc_cv_gld_version != x; then
1833 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1834 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1836 rm -f collect-ld$host_exeext
1837 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1839 elif test -x "$LD_FOR_TARGET"; then
1840 gcc_cv_ld="$LD_FOR_TARGET"
1841 elif test -x "$LD" && test x$host = x$target; then
1845 if test "x$gcc_cv_ld" = x; then
1846 # Search the same directories that the installed compiler will
1847 # search. Else we may find the wrong linker and lose. If we
1848 # do not find a suitable linker binary, then try the user's
1851 # Also note we have to check MD_EXEC_PREFIX before checking the
1852 # user's path. Unfortunately, there is no good way to get at the
1853 # value of MD_EXEC_PREFIX here. So we do a brute force search
1854 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1855 # to be fixed as part of the make/configure rewrite too.
1857 if test "x$exec_prefix" = xNONE; then
1858 if test "x$prefix" = xNONE; then
1859 test_prefix=/usr/local
1864 test_prefix=$exec_prefix
1867 # If the loop below does not find an linker, then use whatever
1868 # one we can find in the users's path.
1870 if test "x$program_prefix" != xNONE; then
1871 gcc_cv_ld=${program_prefix}ld$host_exeext
1873 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$host_exeext
1876 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1877 $test_prefix/libexec/gcc/$target_noncanonical \
1878 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1879 /usr/lib/gcc/$target_noncanonical \
1880 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1881 $test_prefix/$target_noncanonical/bin"
1883 if test x$host = x$target; then
1884 test_dirs="$test_dirs \
1889 /bsd43/usr/lib/cmplrs/cc \
1890 /usr/cross64/usr/bin \
1891 /usr/lib/cmplrs/cc \
1892 /sysv/usr/lib/cmplrs/cc \
1893 /svr4/usr/lib/cmplrs/cc \
1897 for dir in $test_dirs; do
1898 if test -x $dir/ld$host_exeext; then
1899 gcc_cv_ld=$dir/ld$host_exeext
1906 AC_MSG_RESULT("newly built ld")
1909 AC_MSG_RESULT($gcc_cv_ld)
1913 # Figure out what nm we will be using.
1914 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1915 AC_MSG_CHECKING(what nm to use)
1917 if test -x nm$host_exeext; then
1918 gcc_cv_nm=./nm$host_exeext
1919 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1920 && test -f ../binutils/Makefile; then
1921 # Single tree build which includes binutils.
1923 gcc_cv_nm=./nm$host_exeext
1924 rm -f nm$host_exeext
1925 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1926 elif test "x$program_prefix" != xNONE; then
1927 gcc_cv_nm=${program_prefix}nm$host_exeext
1929 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$host_exeext
1932 yes) AC_MSG_RESULT("newly built nm") ;;
1933 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1936 # Figure out what objdump we will be using.
1937 AC_MSG_CHECKING(what objdump to use)
1939 if test -x objdump$host_exeext; then
1940 gcc_cv_objdump=./objdump$host_exeext
1941 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1942 && test -f ../binutils/Makefile; then
1943 # Single tree build which includes binutils.
1945 gcc_cv_objdump=./objdump$host_exeext
1946 rm -f objdump$host_exeext
1947 $symbolic_link ../binutils/objdump$host_exeext \
1948 objdump$host_exeext 2>/dev/null
1949 elif test "x$program_prefix" != xNONE; then
1950 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1952 gcc_cv_objdump=`echo objdump | \
1953 sed "${program_transform_name}"`$host_exeext
1955 case $in_tree_objdump in
1956 yes) AC_MSG_RESULT("newly built objdump") ;;
1957 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1960 # Figure out what assembler alignment features are present.
1961 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1965 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1966 [Define if your assembler supports .balign and .p2align.])])
1968 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1971 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1972 [Define if your assembler supports specifying the maximum number
1973 of bytes to skip when using the GAS .p2align command.])])
1975 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1977 [conftest_label1: .word 0
1979 conftest_label2: .word 0
1981 [if test x$gcc_cv_nm != x; then
1982 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1983 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1984 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1986 else gcc_cv_as_subsection_m1=yes
1988 rm -f conftest.nm1 conftest.nm2
1990 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1991 [Define if your assembler supports .subsection and .subsection -1 starts
1992 emitting at the beginning of your section.])])
1994 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1997 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1999 # .hidden needs to be supported in both the assembler and the linker,
2000 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2001 # This is irritatingly difficult to feature test for; we have to check the
2002 # date string after the version number. If we've got an in-tree
2003 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2005 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2006 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2011 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2012 [if test $in_tree_ld = yes ; then
2014 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2015 && test $in_tree_ld_is_elf = yes; then
2016 gcc_cv_ld_hidden=yes
2019 gcc_cv_ld_hidden=yes
2020 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2021 if echo "$ld_ver" | grep GNU > /dev/null; then
2023 ld_vers=`echo $ld_ver | sed -n \
2024 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2025 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2026 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2027 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2028 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2029 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2030 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2031 if test 0"$ld_date" -lt 20020404; then
2032 if test -n "$ld_date"; then
2033 # If there was date string, but was earlier than 2002-04-04, fail
2035 elif test -z "$ld_vers"; then
2036 # If there was no date string nor ld version number, something is wrong
2039 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2040 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2041 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2042 test -z "$ld_vers_patch" && ld_vers_patch=0
2043 if test "$ld_vers_major" -lt 2; then
2045 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2046 gcc_cv_ld_hidden="no"
2047 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2055 hppa64*-*-hpux* | ia64*-*-hpux*)
2056 gcc_cv_ld_hidden=yes
2064 libgcc_visibility=no
2065 AC_SUBST(libgcc_visibility)
2066 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2067 libgcc_visibility=yes
2068 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2069 [Define if your assembler and linker support .hidden.])
2072 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2073 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2081 [# GAS versions before 2.11 do not support uleb128,
2082 # despite appearing to.
2083 # ??? There exists an elf-specific test that will crash
2084 # the assembler. Perhaps it's better to figure out whether
2085 # arbitrary sections are supported and try the test.
2086 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2087 if echo "$as_ver" | grep GNU > /dev/null; then
2089 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2090 as_major=`echo $as_ver | sed 's/\..*//'`
2091 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2093 if test $as_major -eq 2 && test $as_minor -lt 11
2095 else gcc_cv_as_leb128=yes
2098 [AC_DEFINE(HAVE_AS_LEB128, 1,
2099 [Define if your assembler supports .sleb128 and .uleb128.])])
2101 # GAS versions up to and including 2.11.0 may mis-optimize
2103 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2111 .section .eh_frame,"aw",@progbits
2113 .4byte .LECIE1-.LSCIE1
2127 .4byte .LEFDE1-.LASFDE1
2129 .4byte .LASFDE1-__FRAME_BEGIN__
2137 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2138 cat > conftest.lit <<EOF
2139 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2140 0010 01000000 12000000 18000000 00000000 ................
2141 0020 08000000 04080000 0044 .........D @&t@
2143 cat > conftest.big <<EOF
2144 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2145 0010 00000001 00000012 00000018 00000000 ................
2146 0020 00000008 04000000 0844 .........D @&t@
2148 # If the assembler didn't choke, and we can objdump,
2149 # and we got the correct data, then succeed.
2150 if test x$gcc_cv_objdump != x \
2151 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2152 | tail -3 > conftest.got \
2153 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2154 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2156 gcc_cv_as_eh_frame=yes
2157 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2158 gcc_cv_as_eh_frame=buggy
2160 # Uh oh, what do we do now?
2161 gcc_cv_as_eh_frame=no
2164 if test $gcc_cv_as_eh_frame = buggy; then
2165 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2166 [Define if your assembler mis-optimizes .eh_frame data.])
2169 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2170 [elf,2,12,0], [--fatal-warnings],
2171 [.section .rodata.str, "aMS", @progbits, 1])
2172 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2173 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2174 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2176 # Thread-local storage - the check is heavily parametrized.
2185 .section ".tdata","awT",@progbits
2188 ldq $27,__tls_get_addr($29) !literal!1
2189 lda $16,foo($29) !tlsgd!1
2190 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2191 ldq $27,__tls_get_addr($29) !literal!2
2192 lda $16,foo($29) !tlsldm!2
2193 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2194 ldq $1,foo($29) !gotdtprel
2195 ldah $2,foo($29) !dtprelhi
2196 lda $3,foo($2) !dtprello
2197 lda $4,foo($29) !dtprel
2198 ldq $1,foo($29) !gottprel
2199 ldah $2,foo($29) !tprelhi
2200 lda $3,foo($2) !tprello
2201 lda $4,foo($29) !tprel'
2204 tls_as_opt=--fatal-warnings
2208 .section ".tdata","awT",@progbits
2212 leal foo@TLSGD(,%ebx,1), %eax
2213 leal foo@TLSLDM(%ebx), %eax
2214 leal foo@DTPOFF(%eax), %edx
2215 movl foo@GOTTPOFF(%ebx), %eax
2216 subl foo@GOTTPOFF(%ebx), %eax
2217 addl foo@GOTNTPOFF(%ebx), %eax
2218 movl foo@INDNTPOFF, %eax
2219 movl $foo@TPOFF, %eax
2220 subl $foo@TPOFF, %eax
2221 leal foo@NTPOFF(%ecx), %eax'
2224 tls_as_opt=--fatal-warnings
2228 .section ".tdata","awT",@progbits
2232 leaq foo@TLSGD(%rip), %rdi
2233 leaq foo@TLSLD(%rip), %rdi
2234 leaq foo@DTPOFF(%rax), %rdx
2235 movq foo@GOTTPOFF(%rip), %rax
2236 movq $foo@TPOFF, %rax'
2239 tls_as_opt=--fatal-warnings
2243 .section ".tdata","awT",@progbits
2246 addl r16 = @ltoff(@dtpmod(foo#)), gp
2247 addl r17 = @ltoff(@dtprel(foo#)), gp
2248 addl r18 = @ltoff(@tprel(foo#)), gp
2249 addl r19 = @dtprel(foo#), gp
2250 adds r21 = @dtprel(foo#), r13
2251 movl r23 = @dtprel(foo#)
2252 addl r20 = @tprel(foo#), gp
2253 adds r22 = @tprel(foo#), r13
2254 movl r24 = @tprel(foo#)'
2257 tls_as_opt=--fatal-warnings
2261 .section ".tdata","awT",@progbits
2269 addi 3,31,ld0@got@tlsgd
2271 addi 3,31,x1@got@tlsld
2274 addis 9,3,x2@dtprel@ha
2275 addi 9,9,x2@dtprel@l
2276 lwz 9,x3@got@tprel(31)
2279 addis 9,2,x2@tprel@ha
2280 addi 9,9,x2@tprel@l'
2283 tls_as_opt="-a32 --fatal-warnings"
2287 .section ".tdata","awT",@progbits
2295 addi 3,2,ld0@got@tlsgd
2301 addi 3,2,x1@got@tlsld
2307 addis 9,3,x2@dtprel@ha
2308 addi 9,9,x2@dtprel@l
2311 ld 9,x3@got@dtprel(2)
2317 tls_as_opt="-a64 --fatal-warnings"
2321 .section ".tdata","awT",@progbits
2330 l %r1,foo@GOTNTPOFF(%r12)
2331 l %r1,0(%r1):tls_load:foo
2332 bas %r14,0(%r1,%r13):tls_gdcall:foo
2333 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2336 tls_as_opt="-m31 --fatal-warnings"
2340 .section ".tdata","awT",@progbits
2348 lg %r1,foo@GOTNTPOFF(%r12)
2349 larl %r1,foo@INDNTPOFF
2350 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2351 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2354 tls_as_opt="-m64 -Aesame --fatal-warnings"
2356 sh-*-* | sh[34]-*-*)
2358 .section ".tdata","awT",@progbits
2368 tls_as_opt=--fatal-warnings
2372 sparc*-sun-solaris2.*)
2379 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2381 .section ".tdata",#alloc,#write,#tls
2384 sethi %tgd_hi22(foo), %o0
2385 add %o0, %tgd_lo10(foo), %o1
2386 add %l7, %o1, %o0, %tgd_add(foo)
2387 call __tls_get_addr, %tgd_call(foo)
2388 sethi %tldm_hi22(foo), %l1
2389 add %l1, %tldm_lo10(foo), %l2
2390 add %l7, %l2, %o0, %tldm_add(foo)
2391 call __tls_get_addr, %tldm_call(foo)
2392 sethi %tldo_hix22(foo), %l3
2393 xor %l3, %tldo_lox10(foo), %l4
2394 add %o0, %l4, %l5, %tldo_add(foo)
2395 sethi %tie_hi22(foo), %o3
2396 add %o3, %tie_lo10(foo), %o3
2397 ld [%l7 + %o3], %o2, %tie_ld(foo)
2398 add %g7, %o2, %o4, %tie_add(foo)
2399 sethi %tle_hix22(foo), %l1
2400 xor %l1, %tle_lox10(foo), %o5
2401 ld [%g7 + %o5], %o1'
2406 .section ".tdata","awT",@progbits
2409 sethi %tgd_hi22(foo), %o0
2410 add %o0, %tgd_lo10(foo), %o1
2411 add %l7, %o1, %o0, %tgd_add(foo)
2412 call __tls_get_addr, %tgd_call(foo)
2413 sethi %tldm_hi22(foo), %l1
2414 add %l1, %tldm_lo10(foo), %l2
2415 add %l7, %l2, %o0, %tldm_add(foo)
2416 call __tls_get_addr, %tldm_call(foo)
2417 sethi %tldo_hix22(foo), %l3
2418 xor %l3, %tldo_lox10(foo), %l4
2419 add %o0, %l4, %l5, %tldo_add(foo)
2420 sethi %tie_hi22(foo), %o3
2421 add %o3, %tie_lo10(foo), %o3
2422 ld [%l7 + %o3], %o2, %tie_ld(foo)
2423 add %g7, %o2, %o4, %tie_add(foo)
2424 sethi %tle_hix22(foo), %l1
2425 xor %l1, %tle_lox10(foo), %o5
2426 ld [%g7 + %o5], %o1'
2429 tls_as_opt="-32 --fatal-warnings"
2434 if test -z "$tls_first_major"; then
2435 : # If we don't have a check, assume no support.
2437 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2438 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2439 [AC_DEFINE(HAVE_AS_TLS, 1,
2440 [Define if your assembler supports thread-local storage.])])
2443 # Target-specific assembler checks.
2446 # All TARGET_ABI_OSF targets.
2447 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2448 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2449 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2452 extbl $3, $2, $3 !lituse_bytoff!1
2453 ldq $2, a($29) !literal!1
2454 ldq $4, b($29) !literal!2
2455 ldq_u $3, 0($2) !lituse_base!1
2456 ldq $27, f($29) !literal!5
2457 jsr $26, ($27), f !lituse_jsr!5
2458 ldah $29, 0($26) !gpdisp!3
2459 lda $0, c($29) !gprel
2460 ldah $1, d($29) !gprelhigh
2461 lda $1, d($1) !gprellow
2462 lda $29, 0($29) !gpdisp!3],,
2463 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2464 [Define if your assembler supports explicit relocations.])])
2468 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2469 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2470 [-no-mul-bug-abort], [.text],,
2471 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2472 [Define if your assembler supports the -no-mul-bug-abort option.])])
2476 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2477 [.register %g2, #scratch],,
2478 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2479 [Define if your assembler supports .register.])])
2481 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2483 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2484 [Define if your assembler supports -relax option.])])
2486 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2487 gcc_cv_as_sparc_ua_pcrel,,
2495 .uaword %r_disp32(foo)],
2496 [if test x$gcc_cv_ld != x \
2497 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2498 gcc_cv_as_sparc_ua_pcrel=yes
2501 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2502 [Define if your assembler and linker support unaligned PC relative relocs.])
2504 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2505 gcc_cv_as_sparc_ua_pcrel_hidden,,
2510 .uaword %r_disp32(foo)
2511 .byte 0x32, 0x33, 0x34
2516 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2517 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2518 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2519 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2520 if $gcc_cv_objdump -R conftest 2> /dev/null \
2521 | grep 'DISP32' > /dev/null 2>&1; then
2524 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2528 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2529 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2530 ]) # unaligned pcrel relocs
2532 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2533 gcc_cv_as_sparc_offsetable_lo10,,
2536 or %g1, %lo(ab) + 12, %g1
2537 or %g1, %lo(ab + 12), %g1],
2538 [if test x$gcc_cv_objdump != x \
2539 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2540 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2541 gcc_cv_as_offsetable_lo10=yes
2543 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2544 [Define if your assembler supports offsetable %lo().])])
2548 i[34567]86-*-* | x86_64-*-*)
2551 cygwin* | pe | mingw32*)
2552 # Used for DWARF 2 in PE
2553 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2554 gcc_cv_as_ix86_pe_secrel32,
2560 [if test x$gcc_cv_ld != x \
2561 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2562 gcc_cv_as_ix86_pe_secrel32=yes
2565 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2566 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2570 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2571 gcc_cv_as_ix86_filds_fists,
2572 [2,9,0],, [filds mem; fists mem],,
2573 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2574 [Define if your assembler uses the new HImode fild and fist notation.])])
2576 gcc_GAS_CHECK_FEATURE([cmov syntax],
2577 gcc_cv_as_ix86_cmov_sun_syntax,,,
2578 [cmovl.l %edx, %eax],,
2579 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2580 [Define if your assembler supports the Sun syntax for cmov.])])
2582 # This one is used unconditionally by i386.[ch]; it is to be defined
2583 # to 1 if the feature is present, 0 otherwise.
2584 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2585 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2591 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2592 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2593 [Define true if the assembler supports '.long foo@GOTOFF'.])
2597 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2598 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2600 addl r15 = @ltoffx(x#), gp
2602 ld8.mov r16 = [[r15]], x#],,
2603 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2604 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2610 *-*-aix*) conftest_s=' .csect .text[[PR]]
2612 *-*-darwin*) conftest_s=' .text
2614 *) conftest_s=' .text
2618 gcc_GAS_CHECK_FEATURE([mfcr field support],
2619 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2621 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2622 [Define if your assembler supports mfcr field.])])
2626 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2627 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2628 [ lw $4,%gp_rel(foo)($4)],,
2629 [if test x$target_cpu_default = x
2630 then target_cpu_default=MASK_EXPLICIT_RELOCS
2631 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2636 # ??? Not all targets support dwarf2 debug_line, even within a version
2637 # of gas. Moreover, we need to emit a valid instruction to trigger any
2638 # info to the output file. So, as supported targets are added to gas 2.11,
2639 # add some instruction here to (also) show we expect this might work.
2640 # ??? Once 2.11 is released, probably need to add first known working
2641 # version to the per-target configury.
2643 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2644 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2645 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2648 ia64*-*-* | s390*-*-*)
2655 if test x"$insn" != x; then
2657 .file 1 \"conftest.s\"
2660 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2661 gcc_cv_as_dwarf2_debug_line,
2662 [elf,2,11,0],, [$conftest_s],
2663 [# ??? This fails with non-gnu grep. Maybe use objdump?
2664 if grep debug_line conftest.o > /dev/null 2>&1; then
2665 gcc_cv_as_dwarf2_debug_line=yes
2668 # The .debug_line file table must be in the exact order that
2669 # we specified the files, since these indices are also used
2670 # by DW_AT_decl_file. Approximate this test by testing if
2671 # the assembler bitches if the same index is assigned twice.
2672 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2673 gcc_cv_as_dwarf2_file_buggy,,,
2677 if test $gcc_cv_as_dwarf2_debug_line = yes \
2678 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2679 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2680 [Define if your assembler supports dwarf2 .file/.loc directives,
2681 and preserves file table indices exactly as given.])
2684 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2685 gcc_cv_as_gdwarf2_flag,
2686 [elf,2,11,0], [--gdwarf2], [$insn],,
2687 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2688 [Define if your assembler supports the --gdwarf2 option.])])
2690 gcc_GAS_CHECK_FEATURE([--gstabs option],
2691 gcc_cv_as_gstabs_flag,
2692 [elf,2,11,0], [--gstabs], [$insn],
2693 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2694 # and warns about it, but still exits successfully. So check for
2696 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2698 else gcc_cv_as_gstabs_flag=yes
2700 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2701 [Define if your assembler supports the --gstabs option.])])
2704 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2705 gcc_cv_ld_ro_rw_mix=unknown
2706 if test $in_tree_ld = yes ; then
2707 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2708 && test $in_tree_ld_is_elf = yes; then
2709 gcc_cv_ld_ro_rw_mix=read-write
2711 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2712 echo '.section myfoosect, "a"' > conftest1.s
2713 echo '.section myfoosect, "aw"' > conftest2.s
2714 echo '.byte 1' >> conftest2.s
2715 echo '.section myfoosect, "a"' > conftest3.s
2716 echo '.byte 0' >> conftest3.s
2717 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2718 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2719 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2720 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2721 conftest2.o conftest3.o > /dev/null 2>&1; then
2722 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2723 | sed -e '/myfoosect/!d' -e N`
2724 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2725 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2726 gcc_cv_ld_ro_rw_mix=read-only
2728 gcc_cv_ld_ro_rw_mix=read-write
2733 rm -f conftest.* conftest[123].*
2736 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2737 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2738 [Define if your linker links a mix of read-only
2739 and read-write sections into a read-write section.])
2741 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2743 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2744 gcc_cv_ld_eh_frame_hdr=no
2745 if test $in_tree_ld = yes ; then
2746 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2747 && test $in_tree_ld_is_elf = yes; then
2748 gcc_cv_ld_eh_frame_hdr=yes
2750 elif test x$gcc_cv_ld != x; then
2751 # Check if linker supports --eh-frame-hdr option
2752 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2753 gcc_cv_ld_eh_frame_hdr=yes
2756 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2757 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2758 [Define if your linker supports --eh-frame-hdr option.])
2760 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2762 AC_MSG_CHECKING(linker position independent executable support)
2764 if test $in_tree_ld = yes ; then
2765 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2766 && test $in_tree_ld_is_elf = yes; then
2769 elif test x$gcc_cv_ld != x; then
2770 # Check if linker supports -pie option
2771 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2775 if test x"$gcc_cv_ld_pie" = xyes; then
2776 AC_DEFINE(HAVE_LD_PIE, 1,
2777 [Define if your linker supports -pie option.])
2779 AC_MSG_RESULT($gcc_cv_ld_pie)
2785 AC_CACHE_CHECK(linker --as-needed support,
2786 gcc_cv_ld_as_needed,
2787 [gcc_cv_ld_as_needed=no
2788 if test $in_tree_ld = yes ; then
2789 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2790 && test $in_tree_ld_is_elf = yes; then
2791 gcc_cv_ld_as_needed=yes
2793 elif test x$gcc_cv_ld != x; then
2794 # Check if linker supports --as-needed and --no-as-needed options
2795 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2796 gcc_cv_ld_as_needed=yes
2800 if test x"$gcc_cv_ld_as_needed" = xyes; then
2801 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2802 [Define if your linker supports --as-needed and --no-as-needed options.])
2805 if test x$with_sysroot = x && test x$host = x$target \
2806 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2807 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2808 [Define to PREFIX/include if cpp should also search that directory.])
2811 # Find out what GC implementation we want, or may, use.
2813 [ --with-gc={page,zone} choose the garbage collection mechanism to use
2820 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2825 echo "Using $GGC for garbage collection."
2827 # Use the system's zlib library.
2829 zlibinc="-I\$(srcdir)/../zlib"
2830 AC_ARG_WITH(system-zlib,
2831 [ --with-system-zlib use installed libz],
2838 dnl Very limited version of automake's enable-maintainer-mode
2840 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2841 dnl maintainer-mode is disabled by default
2842 AC_ARG_ENABLE(maintainer-mode,
2843 [ --enable-maintainer-mode
2844 enable make rules and dependencies not useful
2845 (and sometimes confusing) to the casual installer],
2846 maintainer_mode=$enableval,
2849 AC_MSG_RESULT($maintainer_mode)
2851 if test "$maintainer_mode" = "yes"; then
2858 AC_MSG_CHECKING([whether to use libbanshee for points-to alias analysis])
2859 AC_ARG_WITH(libbanshee,
2860 [ --with-libbanshee enable libbanshee],
2861 libbanshee="$with_libbanshee",
2864 if test x"$libbanshee" = xyes; then
2865 BANSHEELIB="../libbanshee/points-to/libandersen.a ../libbanshee/engine/libbansheeengine.a ../libbanshee/libcompat/libbansheecompat.a "
2866 BANSHEEINC="-I\$(srcdir)/../libbanshee/libcompat -I\$(srcdir)/../libbanshee -I\$(srcdir)/../libbanshee/points-to"
2867 ANDER="tree-alias-ander.o"
2868 AC_DEFINE(HAVE_BANSHEE, 1, [Define if BANSHEE is available])
2874 AC_MSG_RESULT($with_libbanshee)
2877 AC_SUBST(BANSHEEINC)
2878 AC_SUBST(BANSHEELIB)
2884 # Make empty files to contain the specs and options for each language.
2885 # Then add #include lines to for a compiler that has specs and/or options.
2890 for subdir in . $subdirs
2892 if test -f $srcdir/$subdir/lang.opt; then
2893 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2895 if test -f $srcdir/$subdir/lang-specs.h; then
2896 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2898 if test -f $srcdir/$subdir/$subdir-tree.def; then
2899 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2903 # These (without "all_") are set in each config-lang.in.
2904 # `language' must be a single word so is spelled singularly.
2909 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders libada-mk'
2910 # List of language makefile fragments.
2912 # List of language subdirectory makefiles. Deprecated.
2914 # Files for gengtype
2915 all_gtfiles="$target_gtfiles"
2916 # Files for gengtype with language
2917 all_gtfiles_files_langs=
2918 all_gtfiles_files_files=
2920 # Add the language fragments.
2921 # Languages are added via two mechanisms. Some information must be
2922 # recorded in makefile variables, these are defined in config-lang.in.
2923 # We accumulate them and plug them into the main Makefile.
2924 # The other mechanism is a set of hooks for each of the main targets
2925 # like `clean', `install', etc.
2927 language_hooks="Make-hooks"
2937 . ${srcdir}/$s/config-lang.in
2938 if test "x$language" = x
2940 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2943 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2944 if test -f ${srcdir}/$s/Makefile.in
2945 then all_lang_makefiles="$s/Makefile"
2947 all_languages="$all_languages $language"
2948 if test "x$boot_language" = xyes
2950 all_boot_languages="$all_boot_languages $language"
2952 all_compilers="$all_compilers $compilers"
2953 all_stagestuff="$all_stagestuff $stagestuff"
2954 all_outputs="$all_outputs $outputs"
2955 all_gtfiles="$all_gtfiles $gtfiles"
2958 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2959 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2963 # Pick up gtfiles for c
2966 . ${srcdir}/c-config-lang.in
2967 all_gtfiles="$all_gtfiles $gtfiles"
2970 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2971 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2975 for language in $all_languages
2977 check_languages="$check_languages check-$language"
2980 # We link each language in with a set of hooks, reached indirectly via
2985 target_list="all.build all.cross start.encap rest.encap tags \
2986 install-normal install-common install-man \
2987 uninstall info man srcextra srcman srcinfo \
2988 mostlyclean clean distclean maintainer-clean \
2989 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2990 for t in $target_list
2993 for lang in $all_languages
2997 echo "lang.$t: $x" >> Make-hooks
3006 echo "dir ." > .gdbinit
3007 echo "dir ${srcdir}" >> .gdbinit
3008 if test x$gdb_needs_out_file_path = xyes
3010 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3012 if test "x$subdirs" != x; then
3015 echo "dir ${srcdir}/$s" >> .gdbinit
3018 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3020 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3021 # absolute path for gcc_tooldir based on inserting the number of up-directory
3022 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3023 # $(libsubdir)/@(unlibsubdir) based path.
3024 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3025 # make and thus we'd get different behavior depending on where we built the
3027 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3028 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3030 changequote(<<, >>)dnl
3031 # An explanation of the sed strings:
3032 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3033 # -e 's|/$||' match a trailing forward slash and eliminates it
3034 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3035 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3037 # (*) Note this pattern overwrites the first character of the string
3038 # with a forward slash if one is not already present. This is not a
3039 # problem because the exact names of the sub-directories concerned is
3040 # unimportant, just the number of them matters.
3042 # The practical upshot of these patterns is like this:
3044 # prefix exec_prefix result
3045 # ------ ----------- ------
3047 # /foo/ /foo/bar ../
3048 # /foo /foo/bar/ ../
3049 # /foo/ /foo/bar/ ../
3050 # /foo /foo/bar/ugg ../../
3053 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3054 changequote([, ])dnl
3056 AC_SUBST(gcc_tooldir)
3059 # Find a directory in which to install a shared libgcc.
3061 AC_ARG_ENABLE(version-specific-runtime-libs,
3062 [ --enable-version-specific-runtime-libs
3063 specify that runtime libraries should be
3064 installed in a compiler-specific directory])
3066 AC_ARG_WITH(slibdir,
3067 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3068 slibdir="$with_slibdir",
3069 if test "${enable_version_specific_runtime_libs+set}" = set; then
3070 slibdir='$(libsubdir)'
3071 elif test "$host" != "$target"; then
3072 slibdir='$(build_tooldir)/lib'
3078 objdir=`${PWDCMD-pwd}`
3081 # Substitute configuration variables
3084 AC_SUBST(all_boot_languages)
3085 AC_SUBST(all_compilers)
3086 AC_SUBST(all_gtfiles)
3087 AC_SUBST(all_gtfiles_files_langs)
3088 AC_SUBST(all_gtfiles_files_files)
3089 AC_SUBST(all_lang_makefrags)
3090 AC_SUBST(all_lang_makefiles)
3091 AC_SUBST(all_languages)
3092 AC_SUBST(all_stagestuff)
3093 AC_SUBST(build_exeext)
3094 AC_SUBST(build_install_headers_dir)
3095 AC_SUBST(build_xm_file_list)
3096 AC_SUBST(build_xm_include_list)
3097 AC_SUBST(build_xm_defines)
3098 AC_SUBST(check_languages)
3099 AC_SUBST(cc_set_by_configure)
3100 AC_SUBST(quoted_cc_set_by_configure)
3101 AC_SUBST(cpp_install_dir)
3102 AC_SUBST(xmake_file)
3103 AC_SUBST(tmake_file)
3104 AC_SUBST(extra_gcc_objs)
3105 AC_SUBST(extra_headers_list)
3106 AC_SUBST(extra_objs)
3107 AC_SUBST(extra_parts)
3108 AC_SUBST(extra_passes)
3109 AC_SUBST(extra_programs)
3110 AC_SUBST(float_h_file)
3111 AC_SUBST(gcc_config_arguments)
3112 AC_SUBST(gcc_gxx_include_dir)
3113 AC_SUBST(libstdcxx_incdir)
3114 AC_SUBST(gcc_version)
3115 AC_SUBST(gcc_version_full)
3116 AC_SUBST(gcc_version_trigger)
3117 AC_SUBST(host_exeext)
3118 AC_SUBST(host_xm_file_list)
3119 AC_SUBST(host_xm_include_list)
3120 AC_SUBST(host_xm_defines)
3121 AC_SUBST(out_host_hook_obj)
3123 AC_SUBST(lang_opt_files)
3124 AC_SUBST(lang_specs_files)
3125 AC_SUBST(lang_tree_files)
3126 AC_SUBST(local_prefix)
3128 AC_SUBST(objc_boehm_gc)
3130 AC_SUBST(out_object_file)
3131 AC_SUBST(stage_prefix_set_by_configure)
3132 AC_SUBST(quoted_stage_prefix_set_by_configure)
3133 AC_SUBST(symbolic_link)
3134 AC_SUBST(thread_file)
3135 AC_SUBST(tm_file_list)
3136 AC_SUBST(tm_include_list)
3137 AC_SUBST(tm_defines)
3138 AC_SUBST(tm_p_file_list)
3139 AC_SUBST(tm_p_include_list)
3140 AC_SUBST(xm_file_list)
3141 AC_SUBST(xm_include_list)
3142 AC_SUBST(xm_defines)
3143 AC_SUBST(target_noncanonical)
3144 AC_SUBST(c_target_objs)
3145 AC_SUBST(cxx_target_objs)
3146 AC_SUBST(target_cpu_default)
3148 AC_SUBST_FILE(language_hooks)
3150 # If it doesn't already exist, create document directory
3151 echo "checking for the document directory." 1>&2
3152 if test -d doc ; then
3159 if test x${build} = x${host} ; then
3160 if test x${host} = x${target} ; then
3161 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3163 echo "Links are now set up to build a cross-compiler" 1>&2
3164 echo " from ${host} to ${target}." 1>&2
3167 if test x${host} = x${target} ; then
3168 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3169 echo " for ${target}." 1>&2
3171 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3172 echo " from ${host} to ${target}." 1>&2
3176 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3177 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3179 # Configure the subdirectories
3180 # AC_CONFIG_SUBDIRS($subdirs)
3182 # Create the Makefile
3183 # and configure language subdirectories
3184 AC_CONFIG_FILES($all_outputs)
3186 AC_CONFIG_COMMANDS([default],
3188 case ${CONFIG_HEADERS} in
3189 *auto-host.h:config.in*)
3192 # Make sure all the subdirs exist.
3195 test -d $d || mkdir $d
3197 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3198 # bootstrapping and the installation procedure can still use
3199 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3200 # FLAGS_TO_PASS has been modified to solve the problem there.
3201 # This is virtually a duplicate of what happens in configure.lang; we do
3202 # an extra check to make sure this only happens if ln -s can be used.
3203 if test "$symbolic_link" = "ln -s"; then
3204 for d in ${subdirs} fixinc ; do
3205 STARTDIR=`${PWDCMD-pwd}`
3207 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3210 $symbolic_link ../$t $t 2>/dev/null
3217 symbolic_link='$symbolic_link'