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 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 # By default, the Darwin ranlib will not treat common symbols as
735 # definitions when building the archive table of contents. Other
736 # ranlibs do that; pass an option to the Darwin ranlib that makes
737 # it behave similarly.
743 AC_SUBST(ranlib_flags)
747 # See if cmp has --ignore-initial.
748 gcc_AC_PROG_CMP_IGNORE_INITIAL
750 # See if we have the mktemp command.
751 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
753 # Do we have a single-tree copy of texinfo?
754 if test -f $srcdir/../texinfo/Makefile.in; then
755 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
756 gcc_cv_prog_makeinfo_modern=yes
757 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
759 # See if makeinfo has been installed and is modern enough
760 # that we can use it.
761 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
762 [GNU texinfo.* \([0-9][0-9.]*\)],
766 if test $gcc_cv_prog_makeinfo_modern = no; then
768 *** Makeinfo is missing or too old.
769 *** Info documentation will not be built.])
772 BUILD_INFO=info AC_SUBST(BUILD_INFO)
775 # Is pod2man recent enough to regenerate manpages?
776 AC_MSG_CHECKING([for recent Pod::Man])
777 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
779 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
786 dnl Don't use AC_PROG_LEX; we insist on flex.
787 dnl LEXLIB is not useful in gcc.
788 if test x${build} = x${host} && test -f $srcdir/../flex/skel.c; then
789 FLEX='$(objdir)/../flex/flex'
791 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
795 # The -L switch is so bison can find its skeleton file.
796 if test x${build} = x${host} && test -f $srcdir/../bison/bison.simple; then
797 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
799 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
802 # --------------------
803 # Checks for C headers
804 # --------------------
806 AC_MSG_CHECKING(for GNU C library)
807 AC_CACHE_VAL(gcc_cv_glibc,
809 [#include <features.h>],[
810 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
811 #error Not a GNU C library system
815 AC_MSG_RESULT($gcc_cv_glibc)
816 if test $gcc_cv_glibc = yes; then
817 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
820 # Need to reject headers which give warnings, so that the -Werror bootstrap
821 # works later. *sigh* This needs to come before all header checks.
828 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
829 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
830 sys/resource.h sys/param.h sys/times.h sys/stat.h \
831 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
833 # Check for thread headers.
834 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
835 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
837 # These tests can't be done till we know if we have limits.h.
845 # Stage specific cflags for build.
851 stage1_cflags="-Wa,-J"
857 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
858 # sources; use -no-cpp-precomp to get to GNU cpp.
859 # Apple's GCC has bugs in designated initializer handling, so disable
861 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
864 AC_SUBST(stage1_cflags)
866 # These libraries may be used by collect2.
867 # We may need a special search path to get them linked.
868 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
870 for libs in '' -lld -lmld \
871 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
872 '-L/usr/lib/cmplrs/cc3.11 -lmld'
875 AC_TRY_LINK_FUNC(ldopen,
876 [gcc_cv_collect2_libs="$libs"; break])
879 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
880 case $gcc_cv_collect2_libs in
882 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
884 AC_SUBST(COLLECT2_LIBS)
886 # When building Ada code on Alpha, we need exc_resume which is usually in
887 # -lexc. So test for it.
890 AC_SEARCH_LIBS(exc_resume, exc)
893 AC_SUBST(GNAT_LIBEXC)
895 # Some systems put ldexp and frexp in libm instead of libc; assume
896 # they're both in the same place. jcf-dump needs them.
899 AC_SEARCH_LIBS(ldexp, m)
904 # Use <inttypes.h> only if it exists,
905 # doesn't clash with <sys/types.h>, and declares intmax_t.
906 AC_MSG_CHECKING(for inttypes.h)
907 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
909 [#include <sys/types.h>
910 #include <inttypes.h>],
912 [gcc_cv_header_inttypes_h=yes],
913 gcc_cv_header_inttypes_h=no)])
914 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
915 if test $gcc_cv_header_inttypes_h = yes; then
916 AC_DEFINE(HAVE_INTTYPES_H, 1,
917 [Define if you have a working <inttypes.h> header file.])
920 dnl Disabled until we have a complete test for buggy enum bitfields.
921 dnl gcc_AC_C_ENUM_BF_UNSIGNED
923 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
924 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
925 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
926 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
929 if test x$ac_cv_func_mbstowcs = xyes; then
930 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
931 [ AC_TRY_RUN([#include <stdlib.h>
937 gcc_cv_func_mbstowcs_works=yes,
938 gcc_cv_func_mbstowcs_works=no,
939 gcc_cv_func_mbstowcs_works=yes)])
940 if test x$gcc_cv_func_mbstowcs_works = xyes; then
941 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
942 [Define this macro if mbstowcs does not crash when its
943 first argument is NULL.])
947 AC_CHECK_TYPE(ssize_t, int)
949 # Try to determine the array type of the second argument of getgroups
950 # for the target system (int or gid_t).
952 if test "${target}" = "${build}"; then
953 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
956 # This condition may need some tweaking. It should include all
957 # targets where the array type of the second argument of getgroups
958 # is int and the type of gid_t is not equivalent to int.
959 *-*-sunos* | *-*-ultrix*)
960 TARGET_GETGROUPS_T=int
963 TARGET_GETGROUPS_T=gid_t
967 AC_SUBST(TARGET_GETGROUPS_T)
969 gcc_AC_FUNC_PRINTF_PTR
970 gcc_AC_FUNC_MMAP_BLACKLIST
974 # Under VMS, vfork works very differently than on Unix. The standard test
975 # won't work, and it isn't easily adaptable. It makes more sense to
977 ac_cv_func_vfork_works=yes
983 # Until we have in-tree GNU iconv:
985 AC_SUBST(LIBICONV_DEP)
989 # We will need to find libiberty.h and ansidecl.h
990 saved_CFLAGS="$CFLAGS"
991 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
992 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
993 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
994 fprintf_unlocked strstr errno snprintf vasprintf \
995 malloc realloc calloc free basename getopt clock, , ,[
996 #include "ansidecl.h"
997 #include "system.h"])
999 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1000 #include "ansidecl.h"
1002 #ifdef HAVE_SYS_RESOURCE_H
1003 #include <sys/resource.h>
1008 #include "ansidecl.h"
1010 #ifdef HAVE_SYS_RESOURCE_H
1011 #include <sys/resource.h>
1013 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
1014 [Define to \`long' if <sys/resource.h> doesn't define.])])
1016 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1017 #include "ansidecl.h"
1024 gcc_AC_CHECK_DECLS(times, , ,[
1025 #include "ansidecl.h"
1027 #ifdef HAVE_SYS_TIMES_H
1028 #include <sys/times.h>
1032 # More time-related stuff.
1033 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1035 #include "ansidecl.h"
1037 #ifdef HAVE_SYS_TIMES_H
1038 #include <sys/times.h>
1040 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
1041 if test $ac_cv_struct_tms = yes; then
1042 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1043 [Define if <sys/times.h> defines struct tms.])
1046 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1047 # revisit after autoconf 2.50.
1048 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1050 #include "ansidecl.h"
1052 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
1053 if test $gcc_cv_type_clock_t = yes; then
1054 AC_DEFINE(HAVE_CLOCK_T, 1,
1055 [Define if <time.h> defines clock_t.])
1058 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1059 CFLAGS="$saved_CFLAGS"
1061 gcc_AC_INITFINI_ARRAY
1063 # mkdir takes a single argument on some systems.
1064 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1072 # With Setjmp/Longjmp based exception handling.
1073 AC_ARG_ENABLE(sjlj-exceptions,
1074 [ --enable-sjlj-exceptions
1075 arrange to use setjmp/longjmp exception handling],
1076 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1077 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1078 [Define 0/1 to force the choice for exception handling model.])])
1080 if test x$host = x$target; then
1081 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
1083 use_libunwind_default=no
1085 # Use libunwind based exception handling.
1086 AC_ARG_ENABLE(libunwind-exceptions,
1087 [ --enable-libunwind-exceptions force use libunwind for exceptions],
1088 use_libunwind_exceptions=$enableval,
1089 use_libunwind_exceptions=$use_libunwind_default)
1090 if test x"$use_libunwind_exceptions" = xyes; then
1091 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
1092 [Define if gcc should use -lunwind.])
1095 # --------------------------------------------------------
1096 # Build, host, and target specific configuration fragments
1097 # --------------------------------------------------------
1099 # Collect build-machine-specific information.
1100 . ${srcdir}/config.build
1102 # Collect host-machine-specific information.
1103 . ${srcdir}/config.host
1107 # Collect target-machine-specific information.
1108 . ${srcdir}/config.gcc
1110 extra_objs="${host_extra_objs} ${extra_objs}"
1111 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1113 # Default the target-machine variables that were not explicitly set.
1114 if test x"$tm_file" = x
1115 then tm_file=$cpu_type/$cpu_type.h; fi
1117 if test x"$extra_headers" = x
1118 then extra_headers=; fi
1120 if test x$md_file = x
1121 then md_file=$cpu_type/$cpu_type.md; fi
1123 if test x$out_file = x
1124 then out_file=$cpu_type/$cpu_type.c; fi
1126 if test x"$tmake_file" = x
1127 then tmake_file=$cpu_type/t-$cpu_type
1130 if test x"$dwarf2" = xyes
1131 then tm_file="$tm_file tm-dwarf2.h"
1134 # Say what files are being used for the output code and MD file.
1135 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1136 echo "Using \`$srcdir/config/$md_file' as machine description file."
1138 # If any of the xm_file variables contain nonexistent files, warn
1139 # about them and drop them.
1142 for x in $build_xm_file; do
1143 if test -f $srcdir/config/$x
1145 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1151 for x in $host_xm_file; do
1152 if test -f $srcdir/config/$x
1154 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1160 for x in $xm_file; do
1161 if test -f $srcdir/config/$x
1163 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1169 for f in $tm_file; do
1172 if test $count = ax; then
1173 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1175 echo "Using the following target machine macro files:"
1176 for f in $tm_file; do
1177 echo " $srcdir/config/$f"
1181 if test x$need_64bit_hwint = xyes; then
1182 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1183 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1187 for f in $host_xm_file; do
1190 if test $count = a; then
1192 elif test $count = ax; then
1193 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1195 echo "Using the following host machine macro files:"
1196 for f in $host_xm_file; do
1197 echo " $srcdir/config/$f"
1200 echo "Using ${out_host_hook_obj} for host machine hooks."
1202 if test "$host_xm_file" != "$build_xm_file"; then
1204 for f in $build_xm_file; do
1207 if test $count = a; then
1209 elif test $count = ax; then
1210 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1212 echo "Using the following build machine macro files:"
1213 for f in $build_xm_file; do
1214 echo " $srcdir/config/$f"
1223 # Check if a valid thread package
1224 case ${enable_threads} in
1227 target_thread_file='single'
1231 target_thread_file='single'
1233 aix | dce | gnat | irix | posix | rtems | \
1234 single | solaris | vxworks | win32 )
1235 target_thread_file=${enable_threads}
1238 echo "${enable_threads} is an unknown thread package" 1>&2
1243 if test x${thread_file} = x; then
1244 # No thread file set by target-specific clauses in config.gcc,
1245 # so use file chosen by default logic above
1246 thread_file=${target_thread_file}
1249 # Make gthr-default.h if we have a thread file.
1251 if test $thread_file != single; then
1252 rm -f gthr-default.h
1253 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1254 gthread_flags=-DHAVE_GTHR_DEFAULT
1256 AC_SUBST(gthread_flags)
1262 if test x$enable___cxa_atexit = xyes || \
1263 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1264 AC_CHECK_FUNC(__cxa_atexit,
1265 [AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1266 [Define if you want to use __cxa_atexit, rather than atexit, to
1267 register C++ destructors for local statics and global objects.
1268 This is essential for fully standards-compliant handling of
1269 destructors, but requires __cxa_atexit in libc.])],
1270 echo "__cxa_atexit can't be enabled on this target")
1273 # Look for a file containing extra machine modes.
1274 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1275 extra_modes_file='$(srcdir)'/config/${extra_modes}
1276 AC_SUBST(extra_modes_file)
1277 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1278 [Define to the name of a file containing a list of extra machine modes
1279 for this architecture.])
1282 # auto-host.h is the file containing items generated by autoconf and is
1283 # the first file included by config.h.
1284 # If host=build, it is correct to have bconfig include auto-host.h
1285 # as well. If host!=build, we are in error and need to do more
1286 # work to find out the build config parameters.
1287 if test x$host = x$build
1289 build_auto=auto-host.h
1292 # We create a subdir, then run autoconf in the subdir.
1293 # To prevent recursion we set host and build for the new
1294 # invocation of configure to the build for this invocation
1301 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1302 *) realsrcdir=../${srcdir};;
1304 saved_CFLAGS="${CFLAGS}"
1305 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1306 ${realsrcdir}/configure \
1307 --enable-languages=${enable_languages-all} \
1308 --target=$target_alias --host=$build_alias --build=$build_alias
1309 CFLAGS="${saved_CFLAGS}"
1311 # We just finished tests for the build machine, so rename
1312 # the file auto-build.h in the gcc directory.
1313 mv auto-host.h ../auto-build.h
1316 build_auto=auto-build.h
1317 FORBUILD=../${build_subdir}
1321 tm_file="${tm_file} defaults.h"
1322 tm_p_file="${tm_p_file} tm-preds.h"
1323 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1324 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1325 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1326 # put this back in temporarily.
1327 xm_file="ansidecl.h ${xm_file}"
1333 # Get the version trigger filename from the toplevel
1334 if test "${with_gcc_version_trigger+set}" = set; then
1335 gcc_version_trigger=$with_gcc_version_trigger
1337 gcc_version_trigger=${srcdir}/version.c
1340 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1341 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1343 # Compile in configure arguments.
1344 if test -f configargs.h ; then
1345 # Being re-configured.
1346 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1347 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1349 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1352 # Double all backslashes and backslash all quotes to turn
1353 # gcc_config_arguments into a C string.
1354 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1355 $gcc_config_arguments
1357 gcc_config_arguments_str=`cat conftest.out`
1360 cat > configargs.h <<EOF
1361 /* Generated automatically. */
1362 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1363 static const char thread_model[] = "$thread_file";
1365 static const struct {
1366 const char *name, *value;
1367 } configure_default_options[] = $configure_default_options;
1371 # Internationalization
1373 VERSION="$gcc_version"
1377 ZW_GNU_GETTEXT_SISTER_DIR
1379 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1380 # -liconv on the link line twice.
1381 case "$LIBINTL" in *$LIBICONV*)
1385 # Windows32 Registry support for specifying GCC installation paths.
1386 AC_ARG_ENABLE(win32-registry,
1387 [ --disable-win32-registry
1388 disable lookup of installation paths in the
1389 Registry on Windows hosts
1390 --enable-win32-registry enable registry lookup (default)
1391 --enable-win32-registry=KEY
1392 use KEY instead of GCC version as the last portion
1393 of the registry key],,)
1395 win32 | pe | cygwin* | mingw32* | uwin*)
1396 AC_MSG_CHECKING(whether windows registry support is requested)
1397 if test "x$enable_win32_registry" != xno; then
1398 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1399 [Define to 1 if installation paths should be looked up in Windows32
1400 Registry. Ignored on non windows32 hosts.])
1402 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1407 # Check if user specified a different registry key.
1408 case "x${enable_win32_registry}" in
1411 gcc_cv_win32_registry_key="$VERSION"
1414 # no registry lookup.
1415 gcc_cv_win32_registry_key=''
1418 # user-specified key.
1419 gcc_cv_win32_registry_key="$enable_win32_registry"
1423 if test "x$enable_win32_registry" != xno; then
1424 AC_MSG_CHECKING(registry key on windows hosts)
1425 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1426 [Define to be the last portion of registry key on windows hosts.])
1427 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1432 # Get an absolute path to the GCC top-level source directory
1433 holddir=`${PWDCMD-pwd}`
1435 topdir=`${PWDCMD-pwd}`
1438 # Conditionalize the makefile for this host machine.
1440 for f in ${host_xmake_file}
1442 if test -f ${srcdir}/config/$f
1444 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1448 # Conditionalize the makefile for this target machine.
1450 for f in ${tmake_file}
1452 if test -f ${srcdir}/config/$f
1454 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1457 tmake_file="${tmake_file_}"
1459 symbolic_link='ln -s'
1461 # If the host doesn't support symlinks, modify CC in
1462 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1463 # Otherwise, we can use "CC=$(CC)".
1465 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1467 cc_set_by_configure="\$(CC)"
1468 quoted_cc_set_by_configure="\$(CC)"
1469 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1470 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1473 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1475 symbolic_link="cp -p"
1479 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1480 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1481 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1482 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1486 out_object_file=`basename $out_file .c`.o
1490 for f in $tm_file; do
1493 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1494 tm_include_list="${tm_include_list} $f"
1497 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1498 tm_include_list="${tm_include_list} config/$f"
1505 for f in $tm_p_file; do
1508 tm_p_file_list="${tm_p_file_list} $f"
1509 tm_p_include_list="${tm_p_include_list} $f"
1512 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1513 tm_p_include_list="${tm_p_include_list} config/$f"
1519 for f in $xm_file; do
1522 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1523 xm_include_list="${xm_include_list} $f"
1526 xm_file_list="${xm_file_list} $f"
1527 xm_include_list="${xm_include_list} $f"
1530 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1531 xm_include_list="${xm_include_list} config/$f"
1537 host_xm_include_list=
1538 for f in $host_xm_file; do
1541 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1542 host_xm_include_list="${host_xm_include_list} $f"
1545 host_xm_file_list="${host_xm_file_list} $f"
1546 host_xm_include_list="${host_xm_include_list} $f"
1549 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1550 host_xm_include_list="${host_xm_include_list} config/$f"
1556 for f in $build_xm_file; do
1559 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1560 build_xm_include_list="${build_xm_include_list} $f"
1562 auto-build.h | auto-host.h )
1563 build_xm_file_list="${build_xm_file_list} $f"
1564 build_xm_include_list="${build_xm_include_list} $f"
1567 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1568 build_xm_include_list="${build_xm_include_list} config/$f"
1573 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1574 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1575 CROSS= AC_SUBST(CROSS)
1576 ALL=all.internal AC_SUBST(ALL)
1577 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1578 if test x$host != x$target
1580 CROSS="-DCROSS_COMPILE"
1582 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1583 case "$host","$target" in
1584 # Darwin crosses can use the host system's libraries and headers,
1585 # because of the fat library support. Of course, it must be the
1586 # same version of Darwin on both sides. Allow the user to
1587 # just say --target=foo-darwin without a version number to mean
1588 # "the version on this system".
1589 *-*-darwin*,*-*-darwin*)
1590 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1591 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1592 if test $hostos = $targetos -o $targetos = darwin ; then
1594 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1599 i?86-*-*,x86_64-*-* \
1600 | powerpc*-*-*,powerpc64*-*-*)
1601 CROSS="$CROSS -DNATIVE_CROSS" ;;
1603 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1604 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1605 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1608 # If this is a cross-compiler that does not
1609 # have its own set of headers then define
1612 # If this is using newlib, without having the headers available now,
1613 # then define inhibit_libc in LIBGCC2_CFLAGS.
1614 # This prevents libgcc2 from containing any code which requires libc
1617 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1618 test x$with_newlib = xyes ; } &&
1619 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1620 inhibit_libc=-Dinhibit_libc
1622 AC_SUBST(inhibit_libc)
1624 # When building gcc with a cross-compiler, we need to adjust things so
1625 # that the generator programs are still built with the native compiler.
1626 # Also, we cannot run fixincludes or fix-header.
1628 # These are the normal (build=host) settings:
1629 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1630 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1631 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1632 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1634 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1636 # Possibly disable fixproto, on a per-target basis.
1637 case ${use_fixproto} in
1642 STMP_FIXPROTO=stmp-fixproto
1645 AC_SUBST(STMP_FIXPROTO)
1647 # And these apply if build != host, or we are generating coverage data
1648 if test x$build != x$host || test "x$coverage_flags" != x
1651 BUILD_PREFIX_1=build-
1652 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1654 if test "x$TARGET_SYSTEM_ROOT" = x; then
1660 # Expand extra_headers to include complete path.
1661 # This substitutes for lots of t-* files.
1663 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1664 for file in ${extra_headers} ; do
1665 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1668 # Define collect2 in Makefile.
1669 case $host_can_use_collect2 in
1671 *) collect2='collect2$(exeext)' ;;
1673 AC_SUBST([collect2])
1675 # Add a definition of USE_COLLECT2 if system wants one.
1676 case $use_collect2 in
1677 no) use_collect2= ;;
1680 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1681 xm_defines="${xm_defines} USE_COLLECT2"
1682 case $host_can_use_collect2 in
1684 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1690 # ---------------------------
1691 # Assembler & linker features
1692 # ---------------------------
1694 # Identify the assembler which will work hand-in-glove with the newly
1695 # built GCC, so that we can examine its features. This is the assembler
1696 # which will be driven by the driver program.
1698 # If build != host, and we aren't building gas in-tree, we identify a
1699 # build->target assembler and hope that it will have the same features
1700 # as the host->target assembler we'll be using.
1701 AC_MSG_CHECKING(what assembler to use)
1704 gcc_cv_gas_major_version=
1705 gcc_cv_gas_minor_version=
1706 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1707 if test -x "$DEFAULT_ASSEMBLER"; then
1708 gcc_cv_as="$DEFAULT_ASSEMBLER"
1709 elif test -x as$host_exeext; then
1710 # Build using assembler in the current directory.
1711 gcc_cv_as=./as$host_exeext
1712 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1713 && test -f ../gas/Makefile \
1714 && test x$build = x$host; then
1715 # Single tree build which includes gas. We want to prefer it
1716 # over whatever linker top-level may have detected, since
1717 # we'll use what we're building after installation anyway.
1719 _gcc_COMPUTE_GAS_VERSION
1720 rm -f as$host_exeext
1721 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1722 in_tree_gas_is_elf=no
1723 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1724 || (grep 'obj_format = multi' ../gas/Makefile \
1725 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1727 in_tree_gas_is_elf=yes
1729 m4_pattern_allow([AS_FOR_TARGET])dnl
1730 elif test -x "$AS_FOR_TARGET"; then
1731 gcc_cv_as="$AS_FOR_TARGET"
1732 elif test -x "$AS" && test x$host = x$target; then
1736 if test "x$gcc_cv_as" = x; then
1737 # Search the same directories that the installed compiler will
1738 # search. Else we may find the wrong assembler and lose. If we
1739 # do not find a suitable assembler binary, then try the user's
1742 # Also note we have to check MD_EXEC_PREFIX before checking the
1743 # user's path. Unfortunately, there is no good way to get at the
1744 # value of MD_EXEC_PREFIX here. So we do a brute force search
1745 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1746 # to be fixed as part of the make/configure rewrite too.
1748 if test "x$exec_prefix" = xNONE; then
1749 if test "x$prefix" = xNONE; then
1750 test_prefix=/usr/local
1755 test_prefix=$exec_prefix
1758 # If the loop below does not find an assembler, then use whatever
1759 # one we can find in the users's path.
1761 if test "x$program_prefix" != xNONE; then
1762 gcc_cv_as=${program_prefix}as$host_exeext
1764 gcc_cv_as=`echo as | sed "${program_transform_name}"`$host_exeext
1767 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1768 $test_prefix/libexec/gcc/$target_noncanonical \
1769 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1770 /usr/lib/gcc/$target_noncanonical \
1771 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1772 $test_prefix/$target_noncanonical/bin"
1774 if test x$host = x$target; then
1775 test_dirs="$test_dirs \
1780 /bsd43/usr/lib/cmplrs/cc \
1781 /usr/cross64/usr/bin \
1782 /usr/lib/cmplrs/cc \
1783 /sysv/usr/lib/cmplrs/cc \
1784 /svr4/usr/lib/cmplrs/cc \
1788 for dir in $test_dirs; do
1789 if test -x $dir/as$host_exeext; then
1790 gcc_cv_as=$dir/as$host_exeext
1795 case $in_tree_gas in
1797 AC_MSG_RESULT("newly built gas")
1800 AC_MSG_RESULT($gcc_cv_as)
1804 # Identify the linker which will work hand-in-glove with the newly
1805 # built GCC, so that we can examine its features. This is the linker
1806 # which will be driven by the driver program.
1808 # If build != host, and we aren't building gas in-tree, we identify a
1809 # build->target linker and hope that it will have the same features
1810 # as the host->target linker we'll be using.
1811 AC_MSG_CHECKING(what linker to use)
1814 gcc_cv_gld_major_version=
1815 gcc_cv_gld_minor_version=
1816 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1817 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1818 if test -x "$DEFAULT_LINKER"; then
1819 gcc_cv_ld="$DEFAULT_LINKER"
1820 elif test -x collect-ld$host_exeext; then
1821 # Build using linker in the current directory.
1822 gcc_cv_ld=./collect-ld$host_exeext
1823 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1824 && test -f ../ld/Makefile \
1825 && test x$build = x$host; then
1826 # Single tree build which includes ld. We want to prefer it
1827 # over whatever linker top-level may have detected, since
1828 # we'll use what we're building after installation anyway.
1830 in_tree_ld_is_elf=no
1831 if (grep 'EMUL = .*elf' ../ld/Makefile \
1832 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1833 in_tree_ld_is_elf=yes
1835 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
1838 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1840 if test x$gcc_cv_gld_version != x; then
1845 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1846 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1848 rm -f collect-ld$host_exeext
1849 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1851 elif test -x "$LD_FOR_TARGET"; then
1852 gcc_cv_ld="$LD_FOR_TARGET"
1853 elif test -x "$LD" && test x$host = x$target; then
1857 if test "x$gcc_cv_ld" = x; then
1858 # Search the same directories that the installed compiler will
1859 # search. Else we may find the wrong linker and lose. If we
1860 # do not find a suitable linker binary, then try the user's
1863 # Also note we have to check MD_EXEC_PREFIX before checking the
1864 # user's path. Unfortunately, there is no good way to get at the
1865 # value of MD_EXEC_PREFIX here. So we do a brute force search
1866 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1867 # to be fixed as part of the make/configure rewrite too.
1869 if test "x$exec_prefix" = xNONE; then
1870 if test "x$prefix" = xNONE; then
1871 test_prefix=/usr/local
1876 test_prefix=$exec_prefix
1879 # If the loop below does not find an linker, then use whatever
1880 # one we can find in the users's path.
1882 if test "x$program_prefix" != xNONE; then
1883 gcc_cv_ld=${program_prefix}ld$host_exeext
1885 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$host_exeext
1888 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1889 $test_prefix/libexec/gcc/$target_noncanonical \
1890 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1891 /usr/lib/gcc/$target_noncanonical \
1892 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1893 $test_prefix/$target_noncanonical/bin"
1895 if test x$host = x$target; then
1896 test_dirs="$test_dirs \
1901 /bsd43/usr/lib/cmplrs/cc \
1902 /usr/cross64/usr/bin \
1903 /usr/lib/cmplrs/cc \
1904 /sysv/usr/lib/cmplrs/cc \
1905 /svr4/usr/lib/cmplrs/cc \
1909 for dir in $test_dirs; do
1910 if test -x $dir/ld$host_exeext; then
1911 gcc_cv_ld=$dir/ld$host_exeext
1918 AC_MSG_RESULT("newly built ld")
1921 AC_MSG_RESULT($gcc_cv_ld)
1925 # Figure out what nm we will be using.
1926 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1927 AC_MSG_CHECKING(what nm to use)
1929 if test -x nm$host_exeext; then
1930 gcc_cv_nm=./nm$host_exeext
1931 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1932 && test -f ../binutils/Makefile; then
1933 # Single tree build which includes binutils.
1935 gcc_cv_nm=./nm$host_exeext
1936 rm -f nm$host_exeext
1937 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1938 elif test "x$program_prefix" != xNONE; then
1939 gcc_cv_nm=${program_prefix}nm$host_exeext
1941 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$host_exeext
1944 yes) AC_MSG_RESULT("newly built nm") ;;
1945 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1948 # Figure out what objdump we will be using.
1949 AC_MSG_CHECKING(what objdump to use)
1951 if test -x objdump$host_exeext; then
1952 gcc_cv_objdump=./objdump$host_exeext
1953 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1954 && test -f ../binutils/Makefile; then
1955 # Single tree build which includes binutils.
1957 gcc_cv_objdump=./objdump$host_exeext
1958 rm -f objdump$host_exeext
1959 $symbolic_link ../binutils/objdump$host_exeext \
1960 objdump$host_exeext 2>/dev/null
1961 elif test "x$program_prefix" != xNONE; then
1962 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1964 gcc_cv_objdump=`echo objdump | \
1965 sed "${program_transform_name}"`$host_exeext
1967 case $in_tree_objdump in
1968 yes) AC_MSG_RESULT("newly built objdump") ;;
1969 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1972 # Figure out what assembler alignment features are present.
1973 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1977 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1978 [Define if your assembler supports .balign and .p2align.])])
1980 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1983 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1984 [Define if your assembler supports specifying the maximum number
1985 of bytes to skip when using the GAS .p2align command.])])
1987 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1989 [conftest_label1: .word 0
1991 conftest_label2: .word 0
1993 [if test x$gcc_cv_nm != x; then
1994 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1995 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1996 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1998 else gcc_cv_as_subsection_m1=yes
2000 rm -f conftest.nm1 conftest.nm2
2002 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2003 [Define if your assembler supports .subsection and .subsection -1 starts
2004 emitting at the beginning of your section.])])
2006 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2009 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2011 # .hidden needs to be supported in both the assembler and the linker,
2012 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2013 # This is irritatingly difficult to feature test for; we have to check the
2014 # date string after the version number. If we've got an in-tree
2015 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2017 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2018 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2023 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2024 [if test $in_tree_ld = yes ; then
2026 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2027 && test $in_tree_ld_is_elf = yes; then
2028 gcc_cv_ld_hidden=yes
2031 gcc_cv_ld_hidden=yes
2032 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2033 if echo "$ld_ver" | grep GNU > /dev/null; then
2035 ld_vers=`echo $ld_ver | sed -n \
2036 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2037 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2038 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2039 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2040 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2041 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2042 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2043 if test 0"$ld_date" -lt 20020404; then
2044 if test -n "$ld_date"; then
2045 # If there was date string, but was earlier than 2002-04-04, fail
2047 elif test -z "$ld_vers"; then
2048 # If there was no date string nor ld version number, something is wrong
2051 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2052 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2053 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2054 test -z "$ld_vers_patch" && ld_vers_patch=0
2055 if test "$ld_vers_major" -lt 2; then
2057 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2058 gcc_cv_ld_hidden="no"
2059 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2067 hppa64*-*-hpux* | ia64*-*-hpux*)
2068 gcc_cv_ld_hidden=yes
2076 libgcc_visibility=no
2077 AC_SUBST(libgcc_visibility)
2078 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2079 libgcc_visibility=yes
2080 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2081 [Define if your assembler and linker support .hidden.])
2084 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2085 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2093 [# GAS versions before 2.11 do not support uleb128,
2094 # despite appearing to.
2095 # ??? There exists an elf-specific test that will crash
2096 # the assembler. Perhaps it's better to figure out whether
2097 # arbitrary sections are supported and try the test.
2098 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2099 if echo "$as_ver" | grep GNU > /dev/null; then
2101 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2102 as_major=`echo $as_ver | sed 's/\..*//'`
2103 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2105 if test $as_major -eq 2 && test $as_minor -lt 11
2107 else gcc_cv_as_leb128=yes
2110 [AC_DEFINE(HAVE_AS_LEB128, 1,
2111 [Define if your assembler supports .sleb128 and .uleb128.])])
2113 # GAS versions up to and including 2.11.0 may mis-optimize
2115 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2123 .section .eh_frame,"aw",@progbits
2125 .4byte .LECIE1-.LSCIE1
2139 .4byte .LEFDE1-.LASFDE1
2141 .4byte .LASFDE1-__FRAME_BEGIN__
2149 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2150 cat > conftest.lit <<EOF
2151 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2152 0010 01000000 12000000 18000000 00000000 ................
2153 0020 08000000 04080000 0044 .........D @&t@
2155 cat > conftest.big <<EOF
2156 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2157 0010 00000001 00000012 00000018 00000000 ................
2158 0020 00000008 04000000 0844 .........D @&t@
2160 # If the assembler didn't choke, and we can objdump,
2161 # and we got the correct data, then succeed.
2162 if test x$gcc_cv_objdump != x \
2163 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2164 | tail -3 > conftest.got \
2165 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2166 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2168 gcc_cv_as_eh_frame=yes
2169 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2170 gcc_cv_as_eh_frame=buggy
2172 # Uh oh, what do we do now?
2173 gcc_cv_as_eh_frame=no
2176 if test $gcc_cv_as_eh_frame = buggy; then
2177 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2178 [Define if your assembler mis-optimizes .eh_frame data.])
2181 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2182 [elf,2,12,0], [--fatal-warnings],
2183 [.section .rodata.str, "aMS", @progbits, 1])
2184 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2185 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2186 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2188 # Thread-local storage - the check is heavily parametrized.
2197 .section ".tdata","awT",@progbits
2200 ldq $27,__tls_get_addr($29) !literal!1
2201 lda $16,foo($29) !tlsgd!1
2202 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2203 ldq $27,__tls_get_addr($29) !literal!2
2204 lda $16,foo($29) !tlsldm!2
2205 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2206 ldq $1,foo($29) !gotdtprel
2207 ldah $2,foo($29) !dtprelhi
2208 lda $3,foo($2) !dtprello
2209 lda $4,foo($29) !dtprel
2210 ldq $1,foo($29) !gottprel
2211 ldah $2,foo($29) !tprelhi
2212 lda $3,foo($2) !tprello
2213 lda $4,foo($29) !tprel'
2216 tls_as_opt=--fatal-warnings
2220 .section ".tdata","awT",@progbits
2224 leal foo@TLSGD(,%ebx,1), %eax
2225 leal foo@TLSLDM(%ebx), %eax
2226 leal foo@DTPOFF(%eax), %edx
2227 movl foo@GOTTPOFF(%ebx), %eax
2228 subl foo@GOTTPOFF(%ebx), %eax
2229 addl foo@GOTNTPOFF(%ebx), %eax
2230 movl foo@INDNTPOFF, %eax
2231 movl $foo@TPOFF, %eax
2232 subl $foo@TPOFF, %eax
2233 leal foo@NTPOFF(%ecx), %eax'
2236 tls_as_opt=--fatal-warnings
2240 .section ".tdata","awT",@progbits
2244 leaq foo@TLSGD(%rip), %rdi
2245 leaq foo@TLSLD(%rip), %rdi
2246 leaq foo@DTPOFF(%rax), %rdx
2247 movq foo@GOTTPOFF(%rip), %rax
2248 movq $foo@TPOFF, %rax'
2251 tls_as_opt=--fatal-warnings
2255 .section ".tdata","awT",@progbits
2258 addl r16 = @ltoff(@dtpmod(foo#)), gp
2259 addl r17 = @ltoff(@dtprel(foo#)), gp
2260 addl r18 = @ltoff(@tprel(foo#)), gp
2261 addl r19 = @dtprel(foo#), gp
2262 adds r21 = @dtprel(foo#), r13
2263 movl r23 = @dtprel(foo#)
2264 addl r20 = @tprel(foo#), gp
2265 adds r22 = @tprel(foo#), r13
2266 movl r24 = @tprel(foo#)'
2269 tls_as_opt=--fatal-warnings
2273 .section ".tdata","awT",@progbits
2281 addi 3,31,ld0@got@tlsgd
2283 addi 3,31,x1@got@tlsld
2286 addis 9,3,x2@dtprel@ha
2287 addi 9,9,x2@dtprel@l
2288 lwz 9,x3@got@tprel(31)
2291 addis 9,2,x2@tprel@ha
2292 addi 9,9,x2@tprel@l'
2295 tls_as_opt="-a32 --fatal-warnings"
2299 .section ".tdata","awT",@progbits
2307 addi 3,2,ld0@got@tlsgd
2313 addi 3,2,x1@got@tlsld
2319 addis 9,3,x2@dtprel@ha
2320 addi 9,9,x2@dtprel@l
2323 ld 9,x3@got@dtprel(2)
2329 tls_as_opt="-a64 --fatal-warnings"
2333 .section ".tdata","awT",@progbits
2342 l %r1,foo@GOTNTPOFF(%r12)
2343 l %r1,0(%r1):tls_load:foo
2344 bas %r14,0(%r1,%r13):tls_gdcall:foo
2345 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2348 tls_as_opt="-m31 --fatal-warnings"
2352 .section ".tdata","awT",@progbits
2360 lg %r1,foo@GOTNTPOFF(%r12)
2361 larl %r1,foo@INDNTPOFF
2362 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2363 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2366 tls_as_opt="-m64 -Aesame --fatal-warnings"
2368 sh-*-* | sh[34]-*-*)
2370 .section ".tdata","awT",@progbits
2380 tls_as_opt=--fatal-warnings
2384 sparc*-sun-solaris2.*)
2391 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2393 .section ".tdata",#alloc,#write,#tls
2396 sethi %tgd_hi22(foo), %o0
2397 add %o0, %tgd_lo10(foo), %o1
2398 add %l7, %o1, %o0, %tgd_add(foo)
2399 call __tls_get_addr, %tgd_call(foo)
2400 sethi %tldm_hi22(foo), %l1
2401 add %l1, %tldm_lo10(foo), %l2
2402 add %l7, %l2, %o0, %tldm_add(foo)
2403 call __tls_get_addr, %tldm_call(foo)
2404 sethi %tldo_hix22(foo), %l3
2405 xor %l3, %tldo_lox10(foo), %l4
2406 add %o0, %l4, %l5, %tldo_add(foo)
2407 sethi %tie_hi22(foo), %o3
2408 add %o3, %tie_lo10(foo), %o3
2409 ld [%l7 + %o3], %o2, %tie_ld(foo)
2410 add %g7, %o2, %o4, %tie_add(foo)
2411 sethi %tle_hix22(foo), %l1
2412 xor %l1, %tle_lox10(foo), %o5
2413 ld [%g7 + %o5], %o1'
2418 .section ".tdata","awT",@progbits
2421 sethi %tgd_hi22(foo), %o0
2422 add %o0, %tgd_lo10(foo), %o1
2423 add %l7, %o1, %o0, %tgd_add(foo)
2424 call __tls_get_addr, %tgd_call(foo)
2425 sethi %tldm_hi22(foo), %l1
2426 add %l1, %tldm_lo10(foo), %l2
2427 add %l7, %l2, %o0, %tldm_add(foo)
2428 call __tls_get_addr, %tldm_call(foo)
2429 sethi %tldo_hix22(foo), %l3
2430 xor %l3, %tldo_lox10(foo), %l4
2431 add %o0, %l4, %l5, %tldo_add(foo)
2432 sethi %tie_hi22(foo), %o3
2433 add %o3, %tie_lo10(foo), %o3
2434 ld [%l7 + %o3], %o2, %tie_ld(foo)
2435 add %g7, %o2, %o4, %tie_add(foo)
2436 sethi %tle_hix22(foo), %l1
2437 xor %l1, %tle_lox10(foo), %o5
2438 ld [%g7 + %o5], %o1'
2441 tls_as_opt="-32 --fatal-warnings"
2446 if test -z "$tls_first_major"; then
2447 : # If we don't have a check, assume no support.
2449 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2450 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2451 [AC_DEFINE(HAVE_AS_TLS, 1,
2452 [Define if your assembler supports thread-local storage.])])
2455 # Target-specific assembler checks.
2458 # All TARGET_ABI_OSF targets.
2459 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2460 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2461 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2464 extbl $3, $2, $3 !lituse_bytoff!1
2465 ldq $2, a($29) !literal!1
2466 ldq $4, b($29) !literal!2
2467 ldq_u $3, 0($2) !lituse_base!1
2468 ldq $27, f($29) !literal!5
2469 jsr $26, ($27), f !lituse_jsr!5
2470 ldah $29, 0($26) !gpdisp!3
2471 lda $0, c($29) !gprel
2472 ldah $1, d($29) !gprelhigh
2473 lda $1, d($1) !gprellow
2474 lda $29, 0($29) !gpdisp!3],,
2475 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2476 [Define if your assembler supports explicit relocations.])])
2480 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2481 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2482 [-no-mul-bug-abort], [.text],,
2483 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2484 [Define if your assembler supports the -no-mul-bug-abort option.])])
2488 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2489 [.register %g2, #scratch],,
2490 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2491 [Define if your assembler supports .register.])])
2493 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2495 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2496 [Define if your assembler supports -relax option.])])
2498 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2499 gcc_cv_as_sparc_ua_pcrel,,
2507 .uaword %r_disp32(foo)],
2508 [if test x$gcc_cv_ld != x \
2509 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2510 gcc_cv_as_sparc_ua_pcrel=yes
2513 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2514 [Define if your assembler and linker support unaligned PC relative relocs.])
2516 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2517 gcc_cv_as_sparc_ua_pcrel_hidden,,
2522 .uaword %r_disp32(foo)
2523 .byte 0x32, 0x33, 0x34
2528 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2529 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2530 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2531 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2532 if $gcc_cv_objdump -R conftest 2> /dev/null \
2533 | grep 'DISP32' > /dev/null 2>&1; then
2536 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2540 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2541 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2542 ]) # unaligned pcrel relocs
2544 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2545 gcc_cv_as_sparc_offsetable_lo10,,
2548 or %g1, %lo(ab) + 12, %g1
2549 or %g1, %lo(ab + 12), %g1],
2550 [if test x$gcc_cv_objdump != x \
2551 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2552 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2553 gcc_cv_as_offsetable_lo10=yes
2555 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2556 [Define if your assembler supports offsetable %lo().])])
2560 i[34567]86-*-* | x86_64-*-*)
2563 cygwin* | pe | mingw32*)
2564 # Used for DWARF 2 in PE
2565 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2566 gcc_cv_as_ix86_pe_secrel32,
2572 [if test x$gcc_cv_ld != x \
2573 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2574 gcc_cv_as_ix86_pe_secrel32=yes
2577 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2578 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2582 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2583 gcc_cv_as_ix86_filds_fists,
2584 [2,9,0],, [filds mem; fists mem],,
2585 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2586 [Define if your assembler uses the new HImode fild and fist notation.])])
2588 gcc_GAS_CHECK_FEATURE([cmov syntax],
2589 gcc_cv_as_ix86_cmov_sun_syntax,,,
2590 [cmovl.l %edx, %eax],,
2591 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2592 [Define if your assembler supports the Sun syntax for cmov.])])
2594 # This one is used unconditionally by i386.[ch]; it is to be defined
2595 # to 1 if the feature is present, 0 otherwise.
2596 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2597 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2603 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2604 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2605 [Define true if the assembler supports '.long foo@GOTOFF'.])
2609 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2610 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2612 addl r15 = @ltoffx(x#), gp
2614 ld8.mov r16 = [[r15]], x#],,
2615 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2616 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2622 *-*-aix*) conftest_s=' .csect .text[[PR]]
2624 *-*-darwin*) conftest_s=' .text
2626 *) conftest_s=' .text
2630 gcc_GAS_CHECK_FEATURE([mfcr field support],
2631 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2633 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2634 [Define if your assembler supports mfcr field.])])
2638 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2639 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2640 [ lw $4,%gp_rel(foo)($4)],,
2641 [if test x$target_cpu_default = x
2642 then target_cpu_default=MASK_EXPLICIT_RELOCS
2643 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2648 # ??? Not all targets support dwarf2 debug_line, even within a version
2649 # of gas. Moreover, we need to emit a valid instruction to trigger any
2650 # info to the output file. So, as supported targets are added to gas 2.11,
2651 # add some instruction here to (also) show we expect this might work.
2652 # ??? Once 2.11 is released, probably need to add first known working
2653 # version to the per-target configury.
2655 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2656 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2657 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2660 ia64*-*-* | s390*-*-*)
2667 if test x"$insn" != x; then
2669 .file 1 \"conftest.s\"
2672 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2673 gcc_cv_as_dwarf2_debug_line,
2674 [elf,2,11,0],, [$conftest_s],
2675 [# ??? This fails with non-gnu grep. Maybe use objdump?
2676 if grep debug_line conftest.o > /dev/null 2>&1; then
2677 gcc_cv_as_dwarf2_debug_line=yes
2680 # The .debug_line file table must be in the exact order that
2681 # we specified the files, since these indices are also used
2682 # by DW_AT_decl_file. Approximate this test by testing if
2683 # the assembler bitches if the same index is assigned twice.
2684 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2685 gcc_cv_as_dwarf2_file_buggy,,,
2689 if test $gcc_cv_as_dwarf2_debug_line = yes \
2690 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2691 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2692 [Define if your assembler supports dwarf2 .file/.loc directives,
2693 and preserves file table indices exactly as given.])
2696 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2697 gcc_cv_as_gdwarf2_flag,
2698 [elf,2,11,0], [--gdwarf2], [$insn],,
2699 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2700 [Define if your assembler supports the --gdwarf2 option.])])
2702 gcc_GAS_CHECK_FEATURE([--gstabs option],
2703 gcc_cv_as_gstabs_flag,
2704 [elf,2,11,0], [--gstabs], [$insn],
2705 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2706 # and warns about it, but still exits successfully. So check for
2708 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2710 else gcc_cv_as_gstabs_flag=yes
2712 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2713 [Define if your assembler supports the --gstabs option.])])
2716 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2717 gcc_cv_ld_ro_rw_mix=unknown
2718 if test $in_tree_ld = yes ; then
2719 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2720 && test $in_tree_ld_is_elf = yes; then
2721 gcc_cv_ld_ro_rw_mix=read-write
2723 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2724 echo '.section myfoosect, "a"' > conftest1.s
2725 echo '.section myfoosect, "aw"' > conftest2.s
2726 echo '.byte 1' >> conftest2.s
2727 echo '.section myfoosect, "a"' > conftest3.s
2728 echo '.byte 0' >> conftest3.s
2729 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2730 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2731 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2732 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2733 conftest2.o conftest3.o > /dev/null 2>&1; then
2734 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2735 | sed -e '/myfoosect/!d' -e N`
2736 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2737 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2738 gcc_cv_ld_ro_rw_mix=read-only
2740 gcc_cv_ld_ro_rw_mix=read-write
2745 rm -f conftest.* conftest[123].*
2748 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2749 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2750 [Define if your linker links a mix of read-only
2751 and read-write sections into a read-write section.])
2753 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2755 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2756 gcc_cv_ld_eh_frame_hdr=no
2757 if test $in_tree_ld = yes ; then
2758 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2759 && test $in_tree_ld_is_elf = yes; then
2760 gcc_cv_ld_eh_frame_hdr=yes
2762 elif test x$gcc_cv_ld != x; then
2763 # Check if linker supports --eh-frame-hdr option
2764 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2765 gcc_cv_ld_eh_frame_hdr=yes
2768 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2769 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2770 [Define if your linker supports --eh-frame-hdr option.])
2772 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2774 AC_MSG_CHECKING(linker position independent executable support)
2776 if test $in_tree_ld = yes ; then
2777 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2778 && test $in_tree_ld_is_elf = yes; then
2781 elif test x$gcc_cv_ld != x; then
2782 # Check if linker supports -pie option
2783 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2787 if test x"$gcc_cv_ld_pie" = xyes; then
2788 AC_DEFINE(HAVE_LD_PIE, 1,
2789 [Define if your linker supports -pie option.])
2791 AC_MSG_RESULT($gcc_cv_ld_pie)
2797 AC_CACHE_CHECK(linker --as-needed support,
2798 gcc_cv_ld_as_needed,
2799 [gcc_cv_ld_as_needed=no
2800 if test $in_tree_ld = yes ; then
2801 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2802 && test $in_tree_ld_is_elf = yes; then
2803 gcc_cv_ld_as_needed=yes
2805 elif test x$gcc_cv_ld != x; then
2806 # Check if linker supports --as-needed and --no-as-needed options
2807 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2808 gcc_cv_ld_as_needed=yes
2812 if test x"$gcc_cv_ld_as_needed" = xyes; then
2813 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2814 [Define if your linker supports --as-needed and --no-as-needed options.])
2817 if test x$with_sysroot = x && test x$host = x$target \
2818 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2819 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2820 [Define to PREFIX/include if cpp should also search that directory.])
2823 # Find out what GC implementation we want, or may, use.
2825 [ --with-gc={page,zone} choose the garbage collection mechanism to use
2832 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2837 echo "Using $GGC for garbage collection."
2839 # Use the system's zlib library.
2841 zlibinc="-I\$(srcdir)/../zlib"
2842 AC_ARG_WITH(system-zlib,
2843 [ --with-system-zlib use installed libz],
2850 dnl Very limited version of automake's enable-maintainer-mode
2852 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2853 dnl maintainer-mode is disabled by default
2854 AC_ARG_ENABLE(maintainer-mode,
2855 [ --enable-maintainer-mode
2856 enable make rules and dependencies not useful
2857 (and sometimes confusing) to the casual installer],
2858 maintainer_mode=$enableval,
2861 AC_MSG_RESULT($maintainer_mode)
2863 if test "$maintainer_mode" = "yes"; then
2870 AC_MSG_CHECKING([whether to use libbanshee for points-to alias analysis])
2871 AC_ARG_WITH(libbanshee,
2872 [ --with-libbanshee enable libbanshee],
2873 libbanshee="$with_libbanshee",
2876 if test x"$libbanshee" = xyes; then
2877 BANSHEELIB="../libbanshee/points-to/libandersen.a ../libbanshee/engine/libbansheeengine.a ../libbanshee/libcompat/libbansheecompat.a "
2878 BANSHEEINC="-I\$(srcdir)/../libbanshee/libcompat -I\$(srcdir)/../libbanshee -I\$(srcdir)/../libbanshee/points-to"
2879 ANDER="tree-alias-ander.o"
2880 AC_DEFINE(HAVE_BANSHEE, 1, [Define if BANSHEE is available])
2886 AC_MSG_RESULT($with_libbanshee)
2889 AC_SUBST(BANSHEEINC)
2890 AC_SUBST(BANSHEELIB)
2896 # Make empty files to contain the specs and options for each language.
2897 # Then add #include lines to for a compiler that has specs and/or options.
2902 for subdir in . $subdirs
2904 if test -f $srcdir/$subdir/lang.opt; then
2905 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2907 if test -f $srcdir/$subdir/lang-specs.h; then
2908 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2910 if test -f $srcdir/$subdir/$subdir-tree.def; then
2911 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2915 # These (without "all_") are set in each config-lang.in.
2916 # `language' must be a single word so is spelled singularly.
2921 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders libada-mk'
2922 # List of language makefile fragments.
2924 # List of language subdirectory makefiles. Deprecated.
2926 # Files for gengtype
2927 all_gtfiles="$target_gtfiles"
2928 # Files for gengtype with language
2929 all_gtfiles_files_langs=
2930 all_gtfiles_files_files=
2932 # Add the language fragments.
2933 # Languages are added via two mechanisms. Some information must be
2934 # recorded in makefile variables, these are defined in config-lang.in.
2935 # We accumulate them and plug them into the main Makefile.
2936 # The other mechanism is a set of hooks for each of the main targets
2937 # like `clean', `install', etc.
2939 language_hooks="Make-hooks"
2949 . ${srcdir}/$s/config-lang.in
2950 if test "x$language" = x
2952 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2955 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2956 if test -f ${srcdir}/$s/Makefile.in
2957 then all_lang_makefiles="$s/Makefile"
2959 all_languages="$all_languages $language"
2960 if test "x$boot_language" = xyes
2962 all_boot_languages="$all_boot_languages $language"
2964 all_compilers="$all_compilers $compilers"
2965 all_stagestuff="$all_stagestuff $stagestuff"
2966 all_outputs="$all_outputs $outputs"
2967 all_gtfiles="$all_gtfiles $gtfiles"
2970 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2971 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2975 # Pick up gtfiles for c
2978 . ${srcdir}/c-config-lang.in
2979 all_gtfiles="$all_gtfiles $gtfiles"
2982 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2983 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2987 for language in $all_languages
2989 check_languages="$check_languages check-$language"
2992 # We link each language in with a set of hooks, reached indirectly via
2997 target_list="all.build all.cross start.encap rest.encap tags \
2998 install-normal install-common install-man \
2999 uninstall info man srcextra srcman srcinfo \
3000 mostlyclean clean distclean maintainer-clean \
3001 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3002 for t in $target_list
3005 for lang in $all_languages
3009 echo "lang.$t: $x" >> Make-hooks
3018 echo "dir ." > .gdbinit
3019 echo "dir ${srcdir}" >> .gdbinit
3020 if test x$gdb_needs_out_file_path = xyes
3022 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3024 if test "x$subdirs" != x; then
3027 echo "dir ${srcdir}/$s" >> .gdbinit
3030 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3032 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3033 # absolute path for gcc_tooldir based on inserting the number of up-directory
3034 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3035 # $(libsubdir)/@(unlibsubdir) based path.
3036 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3037 # make and thus we'd get different behavior depending on where we built the
3039 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3040 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3042 changequote(<<, >>)dnl
3043 # An explanation of the sed strings:
3044 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3045 # -e 's|/$||' match a trailing forward slash and eliminates it
3046 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3047 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3049 # (*) Note this pattern overwrites the first character of the string
3050 # with a forward slash if one is not already present. This is not a
3051 # problem because the exact names of the sub-directories concerned is
3052 # unimportant, just the number of them matters.
3054 # The practical upshot of these patterns is like this:
3056 # prefix exec_prefix result
3057 # ------ ----------- ------
3059 # /foo/ /foo/bar ../
3060 # /foo /foo/bar/ ../
3061 # /foo/ /foo/bar/ ../
3062 # /foo /foo/bar/ugg ../../
3065 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3066 changequote([, ])dnl
3068 AC_SUBST(gcc_tooldir)
3071 # Find a directory in which to install a shared libgcc.
3073 AC_ARG_ENABLE(version-specific-runtime-libs,
3074 [ --enable-version-specific-runtime-libs
3075 specify that runtime libraries should be
3076 installed in a compiler-specific directory])
3078 AC_ARG_WITH(slibdir,
3079 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3080 slibdir="$with_slibdir",
3081 if test "${enable_version_specific_runtime_libs+set}" = set; then
3082 slibdir='$(libsubdir)'
3083 elif test "$host" != "$target"; then
3084 slibdir='$(build_tooldir)/lib'
3090 objdir=`${PWDCMD-pwd}`
3093 # Substitute configuration variables
3096 AC_SUBST(all_boot_languages)
3097 AC_SUBST(all_compilers)
3098 AC_SUBST(all_gtfiles)
3099 AC_SUBST(all_gtfiles_files_langs)
3100 AC_SUBST(all_gtfiles_files_files)
3101 AC_SUBST(all_lang_makefrags)
3102 AC_SUBST(all_lang_makefiles)
3103 AC_SUBST(all_languages)
3104 AC_SUBST(all_stagestuff)
3105 AC_SUBST(build_exeext)
3106 AC_SUBST(build_install_headers_dir)
3107 AC_SUBST(build_xm_file_list)
3108 AC_SUBST(build_xm_include_list)
3109 AC_SUBST(build_xm_defines)
3110 AC_SUBST(check_languages)
3111 AC_SUBST(cc_set_by_configure)
3112 AC_SUBST(quoted_cc_set_by_configure)
3113 AC_SUBST(cpp_install_dir)
3114 AC_SUBST(xmake_file)
3115 AC_SUBST(tmake_file)
3116 AC_SUBST(extra_gcc_objs)
3117 AC_SUBST(extra_headers_list)
3118 AC_SUBST(extra_objs)
3119 AC_SUBST(extra_parts)
3120 AC_SUBST(extra_passes)
3121 AC_SUBST(extra_programs)
3122 AC_SUBST(float_h_file)
3123 AC_SUBST(gcc_config_arguments)
3124 AC_SUBST(gcc_gxx_include_dir)
3125 AC_SUBST(libstdcxx_incdir)
3126 AC_SUBST(gcc_version)
3127 AC_SUBST(gcc_version_full)
3128 AC_SUBST(gcc_version_trigger)
3129 AC_SUBST(host_exeext)
3130 AC_SUBST(host_xm_file_list)
3131 AC_SUBST(host_xm_include_list)
3132 AC_SUBST(host_xm_defines)
3133 AC_SUBST(out_host_hook_obj)
3135 AC_SUBST(lang_opt_files)
3136 AC_SUBST(lang_specs_files)
3137 AC_SUBST(lang_tree_files)
3138 AC_SUBST(local_prefix)
3140 AC_SUBST(objc_boehm_gc)
3142 AC_SUBST(out_object_file)
3143 AC_SUBST(stage_prefix_set_by_configure)
3144 AC_SUBST(quoted_stage_prefix_set_by_configure)
3145 AC_SUBST(symbolic_link)
3146 AC_SUBST(thread_file)
3147 AC_SUBST(tm_file_list)
3148 AC_SUBST(tm_include_list)
3149 AC_SUBST(tm_defines)
3150 AC_SUBST(tm_p_file_list)
3151 AC_SUBST(tm_p_include_list)
3152 AC_SUBST(xm_file_list)
3153 AC_SUBST(xm_include_list)
3154 AC_SUBST(xm_defines)
3155 AC_SUBST(target_noncanonical)
3156 AC_SUBST(c_target_objs)
3157 AC_SUBST(cxx_target_objs)
3158 AC_SUBST(target_cpu_default)
3160 AC_SUBST_FILE(language_hooks)
3162 # If it doesn't already exist, create document directory
3163 echo "checking for the document directory." 1>&2
3164 if test -d doc ; then
3171 if test x${build} = x${host} ; then
3172 if test x${host} = x${target} ; then
3173 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3175 echo "Links are now set up to build a cross-compiler" 1>&2
3176 echo " from ${host} to ${target}." 1>&2
3179 if test x${host} = x${target} ; then
3180 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3181 echo " for ${target}." 1>&2
3183 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3184 echo " from ${host} to ${target}." 1>&2
3188 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3189 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3191 # Configure the subdirectories
3192 # AC_CONFIG_SUBDIRS($subdirs)
3194 # Create the Makefile
3195 # and configure language subdirectories
3196 AC_CONFIG_FILES($all_outputs)
3198 AC_CONFIG_COMMANDS([default],
3200 case ${CONFIG_HEADERS} in
3201 *auto-host.h:config.in*)
3204 # Make sure all the subdirs exist.
3207 test -d $d || mkdir $d
3209 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3210 # bootstrapping and the installation procedure can still use
3211 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3212 # FLAGS_TO_PASS has been modified to solve the problem there.
3213 # This is virtually a duplicate of what happens in configure.lang; we do
3214 # an extra check to make sure this only happens if ln -s can be used.
3215 if test "$symbolic_link" = "ln -s"; then
3216 for d in ${subdirs} fixinc ; do
3217 STARTDIR=`${PWDCMD-pwd}`
3219 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3222 $symbolic_link ../$t $t 2>/dev/null
3229 symbolic_link='$symbolic_link'