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 # 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 $gcc_cv_glibc = yes; then
804 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
807 # Need to reject headers which give warnings, so that the -Werror bootstrap
808 # works later. *sigh* This needs to come before all header checks.
815 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
816 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
817 sys/resource.h sys/param.h sys/times.h sys/stat.h \
818 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
820 # Check for thread headers.
821 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
822 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
824 # These tests can't be done till we know if we have limits.h.
832 # Stage specific cflags for build.
838 stage1_cflags="-Wa,-J"
844 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
845 # sources; use -no-cpp-precomp to get to GNU cpp.
846 # Apple's GCC has bugs in designated initializer handling, so disable
848 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
851 AC_SUBST(stage1_cflags)
853 # These libraries may be used by collect2.
854 # We may need a special search path to get them linked.
855 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
857 for libs in '' -lld -lmld \
858 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
859 '-L/usr/lib/cmplrs/cc3.11 -lmld'
862 AC_TRY_LINK_FUNC(ldopen,
863 [gcc_cv_collect2_libs="$libs"; break])
866 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
867 case $gcc_cv_collect2_libs in
869 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
871 AC_SUBST(COLLECT2_LIBS)
873 # When building Ada code on Alpha, we need exc_resume which is usually in
874 # -lexc. So test for it.
877 AC_SEARCH_LIBS(exc_resume, exc)
880 AC_SUBST(GNAT_LIBEXC)
882 # Some systems put ldexp and frexp in libm instead of libc; assume
883 # they're both in the same place. jcf-dump needs them.
886 AC_SEARCH_LIBS(ldexp, m)
891 # Use <inttypes.h> only if it exists,
892 # doesn't clash with <sys/types.h>, and declares intmax_t.
893 AC_MSG_CHECKING(for inttypes.h)
894 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
896 [#include <sys/types.h>
897 #include <inttypes.h>],
899 [gcc_cv_header_inttypes_h=yes],
900 gcc_cv_header_inttypes_h=no)])
901 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
902 if test $gcc_cv_header_inttypes_h = yes; then
903 AC_DEFINE(HAVE_INTTYPES_H, 1,
904 [Define if you have a working <inttypes.h> header file.])
907 dnl Disabled until we have a complete test for buggy enum bitfields.
908 dnl gcc_AC_C_ENUM_BF_UNSIGNED
910 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
911 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
912 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
913 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
916 if test x$ac_cv_func_mbstowcs = xyes; then
917 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
918 [ AC_TRY_RUN([#include <stdlib.h>
924 gcc_cv_func_mbstowcs_works=yes,
925 gcc_cv_func_mbstowcs_works=no,
926 gcc_cv_func_mbstowcs_works=yes)])
927 if test x$gcc_cv_func_mbstowcs_works = xyes; then
928 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
929 [Define this macro if mbstowcs does not crash when its
930 first argument is NULL.])
934 AC_CHECK_TYPE(ssize_t, int)
936 # Try to determine the array type of the second argument of getgroups
937 # for the target system (int or gid_t).
939 if test "${target}" = "${build}"; then
940 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
943 # This condition may need some tweaking. It should include all
944 # targets where the array type of the second argument of getgroups
945 # is int and the type of gid_t is not equivalent to int.
946 *-*-sunos* | *-*-ultrix*)
947 TARGET_GETGROUPS_T=int
950 TARGET_GETGROUPS_T=gid_t
954 AC_SUBST(TARGET_GETGROUPS_T)
956 gcc_AC_FUNC_PRINTF_PTR
957 gcc_AC_FUNC_MMAP_BLACKLIST
961 # Under VMS, vfork works very differently than on Unix. The standard test
962 # won't work, and it isn't easily adaptable. It makes more sense to
964 ac_cv_func_vfork_works=yes
970 # Until we have in-tree GNU iconv:
972 AC_SUBST(LIBICONV_DEP)
976 # We will need to find libiberty.h and ansidecl.h
977 saved_CFLAGS="$CFLAGS"
978 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
979 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
980 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
981 fprintf_unlocked strstr errno snprintf vasprintf \
982 malloc realloc calloc free basename getopt clock, , ,[
983 #include "ansidecl.h"
984 #include "system.h"])
986 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
987 #include "ansidecl.h"
989 #ifdef HAVE_SYS_RESOURCE_H
990 #include <sys/resource.h>
995 #include "ansidecl.h"
997 #ifdef HAVE_SYS_RESOURCE_H
998 #include <sys/resource.h>
1000 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
1001 [Define to \`long' if <sys/resource.h> doesn't define.])])
1003 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1004 #include "ansidecl.h"
1011 gcc_AC_CHECK_DECLS(times, , ,[
1012 #include "ansidecl.h"
1014 #ifdef HAVE_SYS_TIMES_H
1015 #include <sys/times.h>
1019 # More time-related stuff.
1020 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1022 #include "ansidecl.h"
1024 #ifdef HAVE_SYS_TIMES_H
1025 #include <sys/times.h>
1027 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
1028 if test $ac_cv_struct_tms = yes; then
1029 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1030 [Define if <sys/times.h> defines struct tms.])
1033 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1034 # revisit after autoconf 2.50.
1035 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1037 #include "ansidecl.h"
1039 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
1040 if test $gcc_cv_type_clock_t = yes; then
1041 AC_DEFINE(HAVE_CLOCK_T, 1,
1042 [Define if <time.h> defines clock_t.])
1045 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1046 CFLAGS="$saved_CFLAGS"
1048 gcc_AC_INITFINI_ARRAY
1050 # mkdir takes a single argument on some systems.
1051 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1059 # With Setjmp/Longjmp based exception handling.
1060 AC_ARG_ENABLE(sjlj-exceptions,
1061 [ --enable-sjlj-exceptions
1062 arrange to use setjmp/longjmp exception handling],
1063 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1064 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1065 [Define 0/1 to force the choice for exception handling model.])])
1067 if test x$host = x$target; then
1068 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
1070 use_libunwind_default=no
1072 # Use libunwind based exception handling.
1073 AC_ARG_ENABLE(libunwind-exceptions,
1074 [ --enable-libunwind-exceptions force use libunwind for exceptions],
1075 use_libunwind_exceptions=$enableval,
1076 use_libunwind_exceptions=$use_libunwind_default)
1077 if test x"$use_libunwind_exceptions" = xyes; then
1078 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
1079 [Define if gcc should use -lunwind.])
1082 # --------------------------------------------------------
1083 # Build, host, and target specific configuration fragments
1084 # --------------------------------------------------------
1086 # Collect build-machine-specific information.
1087 . ${srcdir}/config.build
1089 # Collect host-machine-specific information.
1090 . ${srcdir}/config.host
1094 # Collect target-machine-specific information.
1095 . ${srcdir}/config.gcc
1097 extra_objs="${host_extra_objs} ${extra_objs}"
1098 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1100 # Default the target-machine variables that were not explicitly set.
1101 if test x"$tm_file" = x
1102 then tm_file=$cpu_type/$cpu_type.h; fi
1104 if test x"$extra_headers" = x
1105 then extra_headers=; fi
1107 if test x$md_file = x
1108 then md_file=$cpu_type/$cpu_type.md; fi
1110 if test x$out_file = x
1111 then out_file=$cpu_type/$cpu_type.c; fi
1113 if test x"$tmake_file" = x
1114 then tmake_file=$cpu_type/t-$cpu_type
1117 if test x"$dwarf2" = xyes
1118 then tm_file="$tm_file tm-dwarf2.h"
1121 # Say what files are being used for the output code and MD file.
1122 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1123 echo "Using \`$srcdir/config/$md_file' as machine description file."
1125 # If any of the xm_file variables contain nonexistent files, warn
1126 # about them and drop them.
1129 for x in $build_xm_file; do
1130 if test -f $srcdir/config/$x
1132 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1138 for x in $host_xm_file; do
1139 if test -f $srcdir/config/$x
1141 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1147 for x in $xm_file; do
1148 if test -f $srcdir/config/$x
1150 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1156 for f in $tm_file; do
1159 if test $count = ax; then
1160 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1162 echo "Using the following target machine macro files:"
1163 for f in $tm_file; do
1164 echo " $srcdir/config/$f"
1168 if test x$need_64bit_hwint = xyes; then
1169 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1170 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1174 for f in $host_xm_file; do
1177 if test $count = a; then
1179 elif test $count = ax; then
1180 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1182 echo "Using the following host machine macro files:"
1183 for f in $host_xm_file; do
1184 echo " $srcdir/config/$f"
1187 echo "Using ${out_host_hook_obj} for host machine hooks."
1189 if test "$host_xm_file" != "$build_xm_file"; then
1191 for f in $build_xm_file; do
1194 if test $count = a; then
1196 elif test $count = ax; then
1197 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1199 echo "Using the following build machine macro files:"
1200 for f in $build_xm_file; do
1201 echo " $srcdir/config/$f"
1210 # Check if a valid thread package
1211 case ${enable_threads} in
1214 target_thread_file='single'
1218 target_thread_file='single'
1220 aix | dce | gnat | irix | posix | rtems | \
1221 single | solaris | vxworks | win32 )
1222 target_thread_file=${enable_threads}
1225 echo "${enable_threads} is an unknown thread package" 1>&2
1230 if test x${thread_file} = x; then
1231 # No thread file set by target-specific clauses in config.gcc,
1232 # so use file chosen by default logic above
1233 thread_file=${target_thread_file}
1236 # Make gthr-default.h if we have a thread file.
1238 if test $thread_file != single; then
1239 rm -f gthr-default.h
1240 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1241 gthread_flags=-DHAVE_GTHR_DEFAULT
1243 AC_SUBST(gthread_flags)
1249 if test x$enable___cxa_atexit = xyes || \
1250 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1251 AC_CHECK_FUNC(__cxa_atexit,
1252 [AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1253 [Define if you want to use __cxa_atexit, rather than atexit, to
1254 register C++ destructors for local statics and global objects.
1255 This is essential for fully standards-compliant handling of
1256 destructors, but requires __cxa_atexit in libc.])],
1257 echo "__cxa_atexit can't be enabled on this target")
1260 # Look for a file containing extra machine modes.
1261 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1262 extra_modes_file='$(srcdir)'/config/${extra_modes}
1263 AC_SUBST(extra_modes_file)
1264 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1265 [Define to the name of a file containing a list of extra machine modes
1266 for this architecture.])
1269 # auto-host.h is the file containing items generated by autoconf and is
1270 # the first file included by config.h.
1271 # If host=build, it is correct to have bconfig include auto-host.h
1272 # as well. If host!=build, we are in error and need to do more
1273 # work to find out the build config parameters.
1274 if test x$host = x$build
1276 build_auto=auto-host.h
1279 # We create a subdir, then run autoconf in the subdir.
1280 # To prevent recursion we set host and build for the new
1281 # invocation of configure to the build for this invocation
1288 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1289 *) realsrcdir=../${srcdir};;
1291 saved_CFLAGS="${CFLAGS}"
1292 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1293 ${realsrcdir}/configure \
1294 --enable-languages=${enable_languages-all} \
1295 --target=$target_alias --host=$build_alias --build=$build_alias
1296 CFLAGS="${saved_CFLAGS}"
1298 # We just finished tests for the build machine, so rename
1299 # the file auto-build.h in the gcc directory.
1300 mv auto-host.h ../auto-build.h
1303 build_auto=auto-build.h
1304 FORBUILD=../${build_subdir}
1308 tm_file="${tm_file} defaults.h"
1309 tm_p_file="${tm_p_file} tm-preds.h"
1310 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1311 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1312 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1313 # put this back in temporarily.
1314 xm_file="ansidecl.h ${xm_file}"
1320 # Get the version trigger filename from the toplevel
1321 if test "${with_gcc_version_trigger+set}" = set; then
1322 gcc_version_trigger=$with_gcc_version_trigger
1324 gcc_version_trigger=${srcdir}/version.c
1327 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1328 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1330 # Compile in configure arguments.
1331 if test -f configargs.h ; then
1332 # Being re-configured.
1333 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1334 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1336 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1339 # Double all backslashes and backslash all quotes to turn
1340 # gcc_config_arguments into a C string.
1341 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1342 $gcc_config_arguments
1344 gcc_config_arguments_str=`cat conftest.out`
1347 cat > configargs.h <<EOF
1348 /* Generated automatically. */
1349 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1350 static const char thread_model[] = "$thread_file";
1352 static const struct {
1353 const char *name, *value;
1354 } configure_default_options[] = $configure_default_options;
1358 # Internationalization
1360 VERSION="$gcc_version"
1364 ZW_GNU_GETTEXT_SISTER_DIR
1366 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1367 # -liconv on the link line twice.
1368 case "$LIBINTL" in *$LIBICONV*)
1372 # Windows32 Registry support for specifying GCC installation paths.
1373 AC_ARG_ENABLE(win32-registry,
1374 [ --disable-win32-registry
1375 disable lookup of installation paths in the
1376 Registry on Windows hosts
1377 --enable-win32-registry enable registry lookup (default)
1378 --enable-win32-registry=KEY
1379 use KEY instead of GCC version as the last portion
1380 of the registry key],,)
1382 win32 | pe | cygwin* | mingw32* | uwin*)
1383 AC_MSG_CHECKING(whether windows registry support is requested)
1384 if test "x$enable_win32_registry" != xno; then
1385 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1386 [Define to 1 if installation paths should be looked up in Windows32
1387 Registry. Ignored on non windows32 hosts.])
1389 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1394 # Check if user specified a different registry key.
1395 case "x${enable_win32_registry}" in
1398 gcc_cv_win32_registry_key="$VERSION"
1401 # no registry lookup.
1402 gcc_cv_win32_registry_key=''
1405 # user-specified key.
1406 gcc_cv_win32_registry_key="$enable_win32_registry"
1410 if test "x$enable_win32_registry" != xno; then
1411 AC_MSG_CHECKING(registry key on windows hosts)
1412 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1413 [Define to be the last portion of registry key on windows hosts.])
1414 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1419 # Get an absolute path to the GCC top-level source directory
1420 holddir=`${PWDCMD-pwd}`
1422 topdir=`${PWDCMD-pwd}`
1425 # Conditionalize the makefile for this host machine.
1427 for f in ${host_xmake_file}
1429 if test -f ${srcdir}/config/$f
1431 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1435 # Conditionalize the makefile for this target machine.
1437 for f in ${tmake_file}
1439 if test -f ${srcdir}/config/$f
1441 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1444 tmake_file="${tmake_file_}"
1446 symbolic_link='ln -s'
1448 # If the host doesn't support symlinks, modify CC in
1449 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1450 # Otherwise, we can use "CC=$(CC)".
1452 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1454 cc_set_by_configure="\$(CC)"
1455 quoted_cc_set_by_configure="\$(CC)"
1456 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1457 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1460 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1462 symbolic_link="cp -p"
1466 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1467 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1468 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1469 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1473 out_object_file=`basename $out_file .c`.o
1477 for f in $tm_file; do
1480 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1481 tm_include_list="${tm_include_list} $f"
1484 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1485 tm_include_list="${tm_include_list} config/$f"
1492 for f in $tm_p_file; do
1495 tm_p_file_list="${tm_p_file_list} $f"
1496 tm_p_include_list="${tm_p_include_list} $f"
1499 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1500 tm_p_include_list="${tm_p_include_list} config/$f"
1506 for f in $xm_file; do
1509 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1510 xm_include_list="${xm_include_list} $f"
1513 xm_file_list="${xm_file_list} $f"
1514 xm_include_list="${xm_include_list} $f"
1517 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1518 xm_include_list="${xm_include_list} config/$f"
1524 host_xm_include_list=
1525 for f in $host_xm_file; do
1528 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1529 host_xm_include_list="${host_xm_include_list} $f"
1532 host_xm_file_list="${host_xm_file_list} $f"
1533 host_xm_include_list="${host_xm_include_list} $f"
1536 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1537 host_xm_include_list="${host_xm_include_list} config/$f"
1543 for f in $build_xm_file; do
1546 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1547 build_xm_include_list="${build_xm_include_list} $f"
1549 auto-build.h | auto-host.h )
1550 build_xm_file_list="${build_xm_file_list} $f"
1551 build_xm_include_list="${build_xm_include_list} $f"
1554 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1555 build_xm_include_list="${build_xm_include_list} config/$f"
1560 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1561 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1562 CROSS= AC_SUBST(CROSS)
1563 ALL=all.internal AC_SUBST(ALL)
1564 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1565 if test x$host != x$target
1567 CROSS="-DCROSS_COMPILE"
1569 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1570 case "$host","$target" in
1571 # Darwin crosses can use the host system's libraries and headers,
1572 # because of the fat library support. Of course, it must be the
1573 # same version of Darwin on both sides. Allow the user to
1574 # just say --target=foo-darwin without a version number to mean
1575 # "the version on this system".
1576 *-*-darwin*,*-*-darwin*)
1577 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1578 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1579 if test $hostos = $targetos -o $targetos = darwin ; then
1581 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1586 i?86-*-*,x86_64-*-* \
1587 | powerpc*-*-*,powerpc64*-*-*)
1588 CROSS="$CROSS -DNATIVE_CROSS" ;;
1590 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1591 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1592 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1595 # If this is a cross-compiler that does not
1596 # have its own set of headers then define
1599 # If this is using newlib, without having the headers available now,
1600 # then define inhibit_libc in LIBGCC2_CFLAGS.
1601 # This prevents libgcc2 from containing any code which requires libc
1604 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1605 test x$with_newlib = xyes ; } &&
1606 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1607 inhibit_libc=-Dinhibit_libc
1609 AC_SUBST(inhibit_libc)
1611 # When building gcc with a cross-compiler, we need to adjust things so
1612 # that the generator programs are still built with the native compiler.
1613 # Also, we cannot run fixincludes or fix-header.
1615 # These are the normal (build=host) settings:
1616 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1617 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1618 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1619 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1621 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1623 # Possibly disable fixproto, on a per-target basis.
1624 case ${use_fixproto} in
1629 STMP_FIXPROTO=stmp-fixproto
1632 AC_SUBST(STMP_FIXPROTO)
1634 # And these apply if build != host, or we are generating coverage data
1635 if test x$build != x$host || test "x$coverage_flags" != x
1638 BUILD_PREFIX_1=build-
1639 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1641 if test "x$TARGET_SYSTEM_ROOT" = x; then
1647 # Expand extra_headers to include complete path.
1648 # This substitutes for lots of t-* files.
1650 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1651 for file in ${extra_headers} ; do
1652 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1655 # Define collect2 in Makefile.
1656 case $host_can_use_collect2 in
1658 *) collect2='collect2$(exeext)' ;;
1660 AC_SUBST([collect2])
1662 # Add a definition of USE_COLLECT2 if system wants one.
1663 case $use_collect2 in
1664 no) use_collect2= ;;
1667 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1668 xm_defines="${xm_defines} USE_COLLECT2"
1669 case $host_can_use_collect2 in
1671 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1677 # ---------------------------
1678 # Assembler & linker features
1679 # ---------------------------
1681 # Identify the assembler which will work hand-in-glove with the newly
1682 # built GCC, so that we can examine its features. This is the assembler
1683 # which will be driven by the driver program.
1685 # If build != host, and we aren't building gas in-tree, we identify a
1686 # build->target assembler and hope that it will have the same features
1687 # as the host->target assembler we'll be using.
1688 AC_MSG_CHECKING(what assembler to use)
1691 gcc_cv_gas_major_version=
1692 gcc_cv_gas_minor_version=
1693 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1694 if test -x "$DEFAULT_ASSEMBLER"; then
1695 gcc_cv_as="$DEFAULT_ASSEMBLER"
1696 elif test -x as$host_exeext; then
1697 # Build using assembler in the current directory.
1698 gcc_cv_as=./as$host_exeext
1699 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1700 && test -f ../gas/Makefile \
1701 && test x$build = x$host; then
1702 # Single tree build which includes gas. We want to prefer it
1703 # over whatever linker top-level may have detected, since
1704 # we'll use what we're building after installation anyway.
1706 _gcc_COMPUTE_GAS_VERSION
1707 rm -f as$host_exeext
1708 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1709 in_tree_gas_is_elf=no
1710 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1711 || (grep 'obj_format = multi' ../gas/Makefile \
1712 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1714 in_tree_gas_is_elf=yes
1716 m4_pattern_allow([AS_FOR_TARGET])dnl
1717 elif test -x "$AS_FOR_TARGET"; then
1718 gcc_cv_as="$AS_FOR_TARGET"
1719 elif test -x "$AS" && test x$host = x$target; then
1723 if test "x$gcc_cv_as" = x; then
1724 # Search the same directories that the installed compiler will
1725 # search. Else we may find the wrong assembler and lose. If we
1726 # do not find a suitable assembler binary, then try the user's
1729 # Also note we have to check MD_EXEC_PREFIX before checking the
1730 # user's path. Unfortunately, there is no good way to get at the
1731 # value of MD_EXEC_PREFIX here. So we do a brute force search
1732 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1733 # to be fixed as part of the make/configure rewrite too.
1735 if test "x$exec_prefix" = xNONE; then
1736 if test "x$prefix" = xNONE; then
1737 test_prefix=/usr/local
1742 test_prefix=$exec_prefix
1745 # If the loop below does not find an assembler, then use whatever
1746 # one we can find in the users's path.
1748 if test "x$program_prefix" != xNONE; then
1749 gcc_cv_as=${program_prefix}as$host_exeext
1751 gcc_cv_as=`echo as | sed "${program_transform_name}"`$host_exeext
1754 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1755 $test_prefix/libexec/gcc/$target_noncanonical \
1756 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1757 /usr/lib/gcc/$target_noncanonical \
1758 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1759 $test_prefix/$target_noncanonical/bin"
1761 if test x$host = x$target; then
1762 test_dirs="$test_dirs \
1767 /bsd43/usr/lib/cmplrs/cc \
1768 /usr/cross64/usr/bin \
1769 /usr/lib/cmplrs/cc \
1770 /sysv/usr/lib/cmplrs/cc \
1771 /svr4/usr/lib/cmplrs/cc \
1775 for dir in $test_dirs; do
1776 if test -x $dir/as$host_exeext; then
1777 gcc_cv_as=$dir/as$host_exeext
1782 case $in_tree_gas in
1784 AC_MSG_RESULT("newly built gas")
1787 AC_MSG_RESULT($gcc_cv_as)
1791 # Identify the linker which will work hand-in-glove with the newly
1792 # built GCC, so that we can examine its features. This is the linker
1793 # which will be driven by the driver program.
1795 # If build != host, and we aren't building gas in-tree, we identify a
1796 # build->target linker and hope that it will have the same features
1797 # as the host->target linker we'll be using.
1798 AC_MSG_CHECKING(what linker to use)
1801 gcc_cv_gld_major_version=
1802 gcc_cv_gld_minor_version=
1803 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1804 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1805 if test -x "$DEFAULT_LINKER"; then
1806 gcc_cv_ld="$DEFAULT_LINKER"
1807 elif test -x collect-ld$host_exeext; then
1808 # Build using linker in the current directory.
1809 gcc_cv_ld=./collect-ld$host_exeext
1810 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1811 && test -f ../ld/Makefile \
1812 && test x$build = x$host; then
1813 # Single tree build which includes ld. We want to prefer it
1814 # over whatever linker top-level may have detected, since
1815 # we'll use what we're building after installation anyway.
1817 in_tree_ld_is_elf=no
1818 if (grep 'EMUL = .*elf' ../ld/Makefile \
1819 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1820 in_tree_ld_is_elf=yes
1822 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
1825 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1827 if test x$gcc_cv_gld_version != x; then
1832 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1833 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1835 rm -f collect-ld$host_exeext
1836 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1838 elif test -x "$LD_FOR_TARGET"; then
1839 gcc_cv_ld="$LD_FOR_TARGET"
1840 elif test -x "$LD" && test x$host = x$target; then
1844 if test "x$gcc_cv_ld" = x; then
1845 # Search the same directories that the installed compiler will
1846 # search. Else we may find the wrong linker and lose. If we
1847 # do not find a suitable linker binary, then try the user's
1850 # Also note we have to check MD_EXEC_PREFIX before checking the
1851 # user's path. Unfortunately, there is no good way to get at the
1852 # value of MD_EXEC_PREFIX here. So we do a brute force search
1853 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1854 # to be fixed as part of the make/configure rewrite too.
1856 if test "x$exec_prefix" = xNONE; then
1857 if test "x$prefix" = xNONE; then
1858 test_prefix=/usr/local
1863 test_prefix=$exec_prefix
1866 # If the loop below does not find an linker, then use whatever
1867 # one we can find in the users's path.
1869 if test "x$program_prefix" != xNONE; then
1870 gcc_cv_ld=${program_prefix}ld$host_exeext
1872 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$host_exeext
1875 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1876 $test_prefix/libexec/gcc/$target_noncanonical \
1877 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1878 /usr/lib/gcc/$target_noncanonical \
1879 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1880 $test_prefix/$target_noncanonical/bin"
1882 if test x$host = x$target; then
1883 test_dirs="$test_dirs \
1888 /bsd43/usr/lib/cmplrs/cc \
1889 /usr/cross64/usr/bin \
1890 /usr/lib/cmplrs/cc \
1891 /sysv/usr/lib/cmplrs/cc \
1892 /svr4/usr/lib/cmplrs/cc \
1896 for dir in $test_dirs; do
1897 if test -x $dir/ld$host_exeext; then
1898 gcc_cv_ld=$dir/ld$host_exeext
1905 AC_MSG_RESULT("newly built ld")
1908 AC_MSG_RESULT($gcc_cv_ld)
1912 # Figure out what nm we will be using.
1913 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1914 AC_MSG_CHECKING(what nm to use)
1916 if test -x nm$host_exeext; then
1917 gcc_cv_nm=./nm$host_exeext
1918 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1919 && test -f ../binutils/Makefile; then
1920 # Single tree build which includes binutils.
1922 gcc_cv_nm=./nm$host_exeext
1923 rm -f nm$host_exeext
1924 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1925 elif test "x$program_prefix" != xNONE; then
1926 gcc_cv_nm=${program_prefix}nm$host_exeext
1928 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$host_exeext
1931 yes) AC_MSG_RESULT("newly built nm") ;;
1932 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1935 # Figure out what objdump we will be using.
1936 AC_MSG_CHECKING(what objdump to use)
1938 if test -x objdump$host_exeext; then
1939 gcc_cv_objdump=./objdump$host_exeext
1940 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1941 && test -f ../binutils/Makefile; then
1942 # Single tree build which includes binutils.
1944 gcc_cv_objdump=./objdump$host_exeext
1945 rm -f objdump$host_exeext
1946 $symbolic_link ../binutils/objdump$host_exeext \
1947 objdump$host_exeext 2>/dev/null
1948 elif test "x$program_prefix" != xNONE; then
1949 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1951 gcc_cv_objdump=`echo objdump | \
1952 sed "${program_transform_name}"`$host_exeext
1954 case $in_tree_objdump in
1955 yes) AC_MSG_RESULT("newly built objdump") ;;
1956 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1959 # Figure out what assembler alignment features are present.
1960 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1964 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1965 [Define if your assembler supports .balign and .p2align.])])
1967 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1970 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1971 [Define if your assembler supports specifying the maximum number
1972 of bytes to skip when using the GAS .p2align command.])])
1974 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1976 [conftest_label1: .word 0
1978 conftest_label2: .word 0
1980 [if test x$gcc_cv_nm != x; then
1981 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1982 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1983 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1985 else gcc_cv_as_subsection_m1=yes
1987 rm -f conftest.nm1 conftest.nm2
1989 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1990 [Define if your assembler supports .subsection and .subsection -1 starts
1991 emitting at the beginning of your section.])])
1993 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1996 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1998 # .hidden needs to be supported in both the assembler and the linker,
1999 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2000 # This is irritatingly difficult to feature test for; we have to check the
2001 # date string after the version number. If we've got an in-tree
2002 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2004 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2005 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2010 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2011 [if test $in_tree_ld = yes ; then
2013 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2014 && test $in_tree_ld_is_elf = yes; then
2015 gcc_cv_ld_hidden=yes
2018 gcc_cv_ld_hidden=yes
2019 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2020 if echo "$ld_ver" | grep GNU > /dev/null; then
2022 ld_vers=`echo $ld_ver | sed -n \
2023 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2024 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2025 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2026 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2027 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2028 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2029 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2030 if test 0"$ld_date" -lt 20020404; then
2031 if test -n "$ld_date"; then
2032 # If there was date string, but was earlier than 2002-04-04, fail
2034 elif test -z "$ld_vers"; then
2035 # If there was no date string nor ld version number, something is wrong
2038 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2039 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2040 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2041 test -z "$ld_vers_patch" && ld_vers_patch=0
2042 if test "$ld_vers_major" -lt 2; then
2044 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2045 gcc_cv_ld_hidden="no"
2046 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2054 hppa64*-*-hpux* | ia64*-*-hpux*)
2055 gcc_cv_ld_hidden=yes
2063 libgcc_visibility=no
2064 AC_SUBST(libgcc_visibility)
2065 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2066 libgcc_visibility=yes
2067 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2068 [Define if your assembler and linker support .hidden.])
2071 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2072 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2080 [# GAS versions before 2.11 do not support uleb128,
2081 # despite appearing to.
2082 # ??? There exists an elf-specific test that will crash
2083 # the assembler. Perhaps it's better to figure out whether
2084 # arbitrary sections are supported and try the test.
2085 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2086 if echo "$as_ver" | grep GNU > /dev/null; then
2088 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2089 as_major=`echo $as_ver | sed 's/\..*//'`
2090 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2092 if test $as_major -eq 2 && test $as_minor -lt 11
2094 else gcc_cv_as_leb128=yes
2097 [AC_DEFINE(HAVE_AS_LEB128, 1,
2098 [Define if your assembler supports .sleb128 and .uleb128.])])
2100 # GAS versions up to and including 2.11.0 may mis-optimize
2102 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2110 .section .eh_frame,"aw",@progbits
2112 .4byte .LECIE1-.LSCIE1
2126 .4byte .LEFDE1-.LASFDE1
2128 .4byte .LASFDE1-__FRAME_BEGIN__
2136 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2137 cat > conftest.lit <<EOF
2138 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2139 0010 01000000 12000000 18000000 00000000 ................
2140 0020 08000000 04080000 0044 .........D @&t@
2142 cat > conftest.big <<EOF
2143 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2144 0010 00000001 00000012 00000018 00000000 ................
2145 0020 00000008 04000000 0844 .........D @&t@
2147 # If the assembler didn't choke, and we can objdump,
2148 # and we got the correct data, then succeed.
2149 if test x$gcc_cv_objdump != x \
2150 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2151 | tail -3 > conftest.got \
2152 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2153 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2155 gcc_cv_as_eh_frame=yes
2156 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2157 gcc_cv_as_eh_frame=buggy
2159 # Uh oh, what do we do now?
2160 gcc_cv_as_eh_frame=no
2163 if test $gcc_cv_as_eh_frame = buggy; then
2164 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2165 [Define if your assembler mis-optimizes .eh_frame data.])
2168 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2169 [elf,2,12,0], [--fatal-warnings],
2170 [.section .rodata.str, "aMS", @progbits, 1])
2171 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2172 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2173 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2175 # Thread-local storage - the check is heavily parametrized.
2184 .section ".tdata","awT",@progbits
2187 ldq $27,__tls_get_addr($29) !literal!1
2188 lda $16,foo($29) !tlsgd!1
2189 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2190 ldq $27,__tls_get_addr($29) !literal!2
2191 lda $16,foo($29) !tlsldm!2
2192 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2193 ldq $1,foo($29) !gotdtprel
2194 ldah $2,foo($29) !dtprelhi
2195 lda $3,foo($2) !dtprello
2196 lda $4,foo($29) !dtprel
2197 ldq $1,foo($29) !gottprel
2198 ldah $2,foo($29) !tprelhi
2199 lda $3,foo($2) !tprello
2200 lda $4,foo($29) !tprel'
2203 tls_as_opt=--fatal-warnings
2207 .section ".tdata","awT",@progbits
2211 leal foo@TLSGD(,%ebx,1), %eax
2212 leal foo@TLSLDM(%ebx), %eax
2213 leal foo@DTPOFF(%eax), %edx
2214 movl foo@GOTTPOFF(%ebx), %eax
2215 subl foo@GOTTPOFF(%ebx), %eax
2216 addl foo@GOTNTPOFF(%ebx), %eax
2217 movl foo@INDNTPOFF, %eax
2218 movl $foo@TPOFF, %eax
2219 subl $foo@TPOFF, %eax
2220 leal foo@NTPOFF(%ecx), %eax'
2223 tls_as_opt=--fatal-warnings
2227 .section ".tdata","awT",@progbits
2231 leaq foo@TLSGD(%rip), %rdi
2232 leaq foo@TLSLD(%rip), %rdi
2233 leaq foo@DTPOFF(%rax), %rdx
2234 movq foo@GOTTPOFF(%rip), %rax
2235 movq $foo@TPOFF, %rax'
2238 tls_as_opt=--fatal-warnings
2242 .section ".tdata","awT",@progbits
2245 addl r16 = @ltoff(@dtpmod(foo#)), gp
2246 addl r17 = @ltoff(@dtprel(foo#)), gp
2247 addl r18 = @ltoff(@tprel(foo#)), gp
2248 addl r19 = @dtprel(foo#), gp
2249 adds r21 = @dtprel(foo#), r13
2250 movl r23 = @dtprel(foo#)
2251 addl r20 = @tprel(foo#), gp
2252 adds r22 = @tprel(foo#), r13
2253 movl r24 = @tprel(foo#)'
2256 tls_as_opt=--fatal-warnings
2260 .section ".tdata","awT",@progbits
2268 addi 3,31,ld0@got@tlsgd
2270 addi 3,31,x1@got@tlsld
2273 addis 9,3,x2@dtprel@ha
2274 addi 9,9,x2@dtprel@l
2275 lwz 9,x3@got@tprel(31)
2278 addis 9,2,x2@tprel@ha
2279 addi 9,9,x2@tprel@l'
2282 tls_as_opt="-a32 --fatal-warnings"
2286 .section ".tdata","awT",@progbits
2294 addi 3,2,ld0@got@tlsgd
2300 addi 3,2,x1@got@tlsld
2306 addis 9,3,x2@dtprel@ha
2307 addi 9,9,x2@dtprel@l
2310 ld 9,x3@got@dtprel(2)
2316 tls_as_opt="-a64 --fatal-warnings"
2320 .section ".tdata","awT",@progbits
2329 l %r1,foo@GOTNTPOFF(%r12)
2330 l %r1,0(%r1):tls_load:foo
2331 bas %r14,0(%r1,%r13):tls_gdcall:foo
2332 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2335 tls_as_opt="-m31 --fatal-warnings"
2339 .section ".tdata","awT",@progbits
2347 lg %r1,foo@GOTNTPOFF(%r12)
2348 larl %r1,foo@INDNTPOFF
2349 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2350 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2353 tls_as_opt="-m64 -Aesame --fatal-warnings"
2355 sh-*-* | sh[34]-*-*)
2357 .section ".tdata","awT",@progbits
2367 tls_as_opt=--fatal-warnings
2371 sparc*-sun-solaris2.*)
2378 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2380 .section ".tdata",#alloc,#write,#tls
2383 sethi %tgd_hi22(foo), %o0
2384 add %o0, %tgd_lo10(foo), %o1
2385 add %l7, %o1, %o0, %tgd_add(foo)
2386 call __tls_get_addr, %tgd_call(foo)
2387 sethi %tldm_hi22(foo), %l1
2388 add %l1, %tldm_lo10(foo), %l2
2389 add %l7, %l2, %o0, %tldm_add(foo)
2390 call __tls_get_addr, %tldm_call(foo)
2391 sethi %tldo_hix22(foo), %l3
2392 xor %l3, %tldo_lox10(foo), %l4
2393 add %o0, %l4, %l5, %tldo_add(foo)
2394 sethi %tie_hi22(foo), %o3
2395 add %o3, %tie_lo10(foo), %o3
2396 ld [%l7 + %o3], %o2, %tie_ld(foo)
2397 add %g7, %o2, %o4, %tie_add(foo)
2398 sethi %tle_hix22(foo), %l1
2399 xor %l1, %tle_lox10(foo), %o5
2400 ld [%g7 + %o5], %o1'
2405 .section ".tdata","awT",@progbits
2408 sethi %tgd_hi22(foo), %o0
2409 add %o0, %tgd_lo10(foo), %o1
2410 add %l7, %o1, %o0, %tgd_add(foo)
2411 call __tls_get_addr, %tgd_call(foo)
2412 sethi %tldm_hi22(foo), %l1
2413 add %l1, %tldm_lo10(foo), %l2
2414 add %l7, %l2, %o0, %tldm_add(foo)
2415 call __tls_get_addr, %tldm_call(foo)
2416 sethi %tldo_hix22(foo), %l3
2417 xor %l3, %tldo_lox10(foo), %l4
2418 add %o0, %l4, %l5, %tldo_add(foo)
2419 sethi %tie_hi22(foo), %o3
2420 add %o3, %tie_lo10(foo), %o3
2421 ld [%l7 + %o3], %o2, %tie_ld(foo)
2422 add %g7, %o2, %o4, %tie_add(foo)
2423 sethi %tle_hix22(foo), %l1
2424 xor %l1, %tle_lox10(foo), %o5
2425 ld [%g7 + %o5], %o1'
2428 tls_as_opt="-32 --fatal-warnings"
2433 if test -z "$tls_first_major"; then
2434 : # If we don't have a check, assume no support.
2436 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2437 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2438 [AC_DEFINE(HAVE_AS_TLS, 1,
2439 [Define if your assembler supports thread-local storage.])])
2442 # Target-specific assembler checks.
2445 # All TARGET_ABI_OSF targets.
2446 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2447 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2448 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2451 extbl $3, $2, $3 !lituse_bytoff!1
2452 ldq $2, a($29) !literal!1
2453 ldq $4, b($29) !literal!2
2454 ldq_u $3, 0($2) !lituse_base!1
2455 ldq $27, f($29) !literal!5
2456 jsr $26, ($27), f !lituse_jsr!5
2457 ldah $29, 0($26) !gpdisp!3
2458 lda $0, c($29) !gprel
2459 ldah $1, d($29) !gprelhigh
2460 lda $1, d($1) !gprellow
2461 lda $29, 0($29) !gpdisp!3],,
2462 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2463 [Define if your assembler supports explicit relocations.])])
2467 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2468 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2469 [-no-mul-bug-abort], [.text],,
2470 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2471 [Define if your assembler supports the -no-mul-bug-abort option.])])
2475 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2476 [.register %g2, #scratch],,
2477 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2478 [Define if your assembler supports .register.])])
2480 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2482 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2483 [Define if your assembler supports -relax option.])])
2485 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2486 gcc_cv_as_sparc_ua_pcrel,,
2494 .uaword %r_disp32(foo)],
2495 [if test x$gcc_cv_ld != x \
2496 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2497 gcc_cv_as_sparc_ua_pcrel=yes
2500 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2501 [Define if your assembler and linker support unaligned PC relative relocs.])
2503 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2504 gcc_cv_as_sparc_ua_pcrel_hidden,,
2509 .uaword %r_disp32(foo)
2510 .byte 0x32, 0x33, 0x34
2515 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2516 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2517 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2518 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2519 if $gcc_cv_objdump -R conftest 2> /dev/null \
2520 | grep 'DISP32' > /dev/null 2>&1; then
2523 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2527 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2528 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2529 ]) # unaligned pcrel relocs
2531 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2532 gcc_cv_as_sparc_offsetable_lo10,,
2535 or %g1, %lo(ab) + 12, %g1
2536 or %g1, %lo(ab + 12), %g1],
2537 [if test x$gcc_cv_objdump != x \
2538 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2539 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2540 gcc_cv_as_offsetable_lo10=yes
2542 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2543 [Define if your assembler supports offsetable %lo().])])
2547 i[34567]86-*-* | x86_64-*-*)
2550 cygwin* | pe | mingw32*)
2551 # Used for DWARF 2 in PE
2552 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2553 gcc_cv_as_ix86_pe_secrel32,
2559 [if test x$gcc_cv_ld != x \
2560 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2561 gcc_cv_as_ix86_pe_secrel32=yes
2564 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2565 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2569 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2570 gcc_cv_as_ix86_filds_fists,
2571 [2,9,0],, [filds mem; fists mem],,
2572 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2573 [Define if your assembler uses the new HImode fild and fist notation.])])
2575 gcc_GAS_CHECK_FEATURE([cmov syntax],
2576 gcc_cv_as_ix86_cmov_sun_syntax,,,
2577 [cmovl.l %edx, %eax],,
2578 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2579 [Define if your assembler supports the Sun syntax for cmov.])])
2581 # This one is used unconditionally by i386.[ch]; it is to be defined
2582 # to 1 if the feature is present, 0 otherwise.
2583 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2584 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2590 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2591 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2592 [Define true if the assembler supports '.long foo@GOTOFF'.])
2596 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2597 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2599 addl r15 = @ltoffx(x#), gp
2601 ld8.mov r16 = [[r15]], x#],,
2602 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2603 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2609 *-*-aix*) conftest_s=' .csect .text[[PR]]
2611 *-*-darwin*) conftest_s=' .text
2613 *) conftest_s=' .text
2617 gcc_GAS_CHECK_FEATURE([mfcr field support],
2618 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2620 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2621 [Define if your assembler supports mfcr field.])])
2625 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2626 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2627 [ lw $4,%gp_rel(foo)($4)],,
2628 [if test x$target_cpu_default = x
2629 then target_cpu_default=MASK_EXPLICIT_RELOCS
2630 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2635 # ??? Not all targets support dwarf2 debug_line, even within a version
2636 # of gas. Moreover, we need to emit a valid instruction to trigger any
2637 # info to the output file. So, as supported targets are added to gas 2.11,
2638 # add some instruction here to (also) show we expect this might work.
2639 # ??? Once 2.11 is released, probably need to add first known working
2640 # version to the per-target configury.
2642 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2643 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2644 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2647 ia64*-*-* | s390*-*-*)
2654 if test x"$insn" != x; then
2656 .file 1 \"conftest.s\"
2659 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2660 gcc_cv_as_dwarf2_debug_line,
2661 [elf,2,11,0],, [$conftest_s],
2662 [# ??? This fails with non-gnu grep. Maybe use objdump?
2663 if grep debug_line conftest.o > /dev/null 2>&1; then
2664 gcc_cv_as_dwarf2_debug_line=yes
2667 # The .debug_line file table must be in the exact order that
2668 # we specified the files, since these indices are also used
2669 # by DW_AT_decl_file. Approximate this test by testing if
2670 # the assembler bitches if the same index is assigned twice.
2671 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2672 gcc_cv_as_dwarf2_file_buggy,,,
2676 if test $gcc_cv_as_dwarf2_debug_line = yes \
2677 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2678 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2679 [Define if your assembler supports dwarf2 .file/.loc directives,
2680 and preserves file table indices exactly as given.])
2683 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2684 gcc_cv_as_gdwarf2_flag,
2685 [elf,2,11,0], [--gdwarf2], [$insn],,
2686 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2687 [Define if your assembler supports the --gdwarf2 option.])])
2689 gcc_GAS_CHECK_FEATURE([--gstabs option],
2690 gcc_cv_as_gstabs_flag,
2691 [elf,2,11,0], [--gstabs], [$insn],
2692 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2693 # and warns about it, but still exits successfully. So check for
2695 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2697 else gcc_cv_as_gstabs_flag=yes
2699 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2700 [Define if your assembler supports the --gstabs option.])])
2703 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2704 gcc_cv_ld_ro_rw_mix=unknown
2705 if test $in_tree_ld = yes ; then
2706 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2707 && test $in_tree_ld_is_elf = yes; then
2708 gcc_cv_ld_ro_rw_mix=read-write
2710 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2711 echo '.section myfoosect, "a"' > conftest1.s
2712 echo '.section myfoosect, "aw"' > conftest2.s
2713 echo '.byte 1' >> conftest2.s
2714 echo '.section myfoosect, "a"' > conftest3.s
2715 echo '.byte 0' >> conftest3.s
2716 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2717 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2718 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2719 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2720 conftest2.o conftest3.o > /dev/null 2>&1; then
2721 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2722 | sed -e '/myfoosect/!d' -e N`
2723 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2724 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2725 gcc_cv_ld_ro_rw_mix=read-only
2727 gcc_cv_ld_ro_rw_mix=read-write
2732 rm -f conftest.* conftest[123].*
2735 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2736 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2737 [Define if your linker links a mix of read-only
2738 and read-write sections into a read-write section.])
2740 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2742 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2743 gcc_cv_ld_eh_frame_hdr=no
2744 if test $in_tree_ld = yes ; then
2745 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2746 && test $in_tree_ld_is_elf = yes; then
2747 gcc_cv_ld_eh_frame_hdr=yes
2749 elif test x$gcc_cv_ld != x; then
2750 # Check if linker supports --eh-frame-hdr option
2751 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2752 gcc_cv_ld_eh_frame_hdr=yes
2755 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2756 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2757 [Define if your linker supports --eh-frame-hdr option.])
2759 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2761 AC_MSG_CHECKING(linker position independent executable support)
2763 if test $in_tree_ld = yes ; then
2764 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2765 && test $in_tree_ld_is_elf = yes; then
2768 elif test x$gcc_cv_ld != x; then
2769 # Check if linker supports -pie option
2770 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2774 if test x"$gcc_cv_ld_pie" = xyes; then
2775 AC_DEFINE(HAVE_LD_PIE, 1,
2776 [Define if your linker supports -pie option.])
2778 AC_MSG_RESULT($gcc_cv_ld_pie)
2784 AC_CACHE_CHECK(linker --as-needed support,
2785 gcc_cv_ld_as_needed,
2786 [gcc_cv_ld_as_needed=no
2787 if test $in_tree_ld = yes ; then
2788 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2789 && test $in_tree_ld_is_elf = yes; then
2790 gcc_cv_ld_as_needed=yes
2792 elif test x$gcc_cv_ld != x; then
2793 # Check if linker supports --as-needed and --no-as-needed options
2794 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2795 gcc_cv_ld_as_needed=yes
2799 if test x"$gcc_cv_ld_as_needed" = xyes; then
2800 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2801 [Define if your linker supports --as-needed and --no-as-needed options.])
2804 if test x$with_sysroot = x && test x$host = x$target \
2805 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2806 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2807 [Define to PREFIX/include if cpp should also search that directory.])
2810 # Find out what GC implementation we want, or may, use.
2812 [ --with-gc={page,zone} choose the garbage collection mechanism to use
2819 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2824 echo "Using $GGC for garbage collection."
2826 # Use the system's zlib library.
2828 zlibinc="-I\$(srcdir)/../zlib"
2829 AC_ARG_WITH(system-zlib,
2830 [ --with-system-zlib use installed libz],
2837 dnl Very limited version of automake's enable-maintainer-mode
2839 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2840 dnl maintainer-mode is disabled by default
2841 AC_ARG_ENABLE(maintainer-mode,
2842 [ --enable-maintainer-mode
2843 enable make rules and dependencies not useful
2844 (and sometimes confusing) to the casual installer],
2845 maintainer_mode=$enableval,
2848 AC_MSG_RESULT($maintainer_mode)
2850 if test "$maintainer_mode" = "yes"; then
2857 AC_MSG_CHECKING([whether to use libbanshee for points-to alias analysis])
2858 AC_ARG_WITH(libbanshee,
2859 [ --with-libbanshee enable libbanshee],
2860 libbanshee="$with_libbanshee",
2863 if test x"$libbanshee" = xyes; then
2864 BANSHEELIB="../libbanshee/points-to/libandersen.a ../libbanshee/engine/libbansheeengine.a ../libbanshee/libcompat/libbansheecompat.a "
2865 BANSHEEINC="-I\$(srcdir)/../libbanshee/libcompat -I\$(srcdir)/../libbanshee -I\$(srcdir)/../libbanshee/points-to"
2866 ANDER="tree-alias-ander.o"
2867 AC_DEFINE(HAVE_BANSHEE, 1, [Define if BANSHEE is available])
2873 AC_MSG_RESULT($with_libbanshee)
2876 AC_SUBST(BANSHEEINC)
2877 AC_SUBST(BANSHEELIB)
2883 # Make empty files to contain the specs and options for each language.
2884 # Then add #include lines to for a compiler that has specs and/or options.
2889 for subdir in . $subdirs
2891 if test -f $srcdir/$subdir/lang.opt; then
2892 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2894 if test -f $srcdir/$subdir/lang-specs.h; then
2895 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2897 if test -f $srcdir/$subdir/$subdir-tree.def; then
2898 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2902 # These (without "all_") are set in each config-lang.in.
2903 # `language' must be a single word so is spelled singularly.
2908 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders libada-mk'
2909 # List of language makefile fragments.
2911 # List of language subdirectory makefiles. Deprecated.
2913 # Files for gengtype
2914 all_gtfiles="$target_gtfiles"
2915 # Files for gengtype with language
2916 all_gtfiles_files_langs=
2917 all_gtfiles_files_files=
2919 # Add the language fragments.
2920 # Languages are added via two mechanisms. Some information must be
2921 # recorded in makefile variables, these are defined in config-lang.in.
2922 # We accumulate them and plug them into the main Makefile.
2923 # The other mechanism is a set of hooks for each of the main targets
2924 # like `clean', `install', etc.
2926 language_hooks="Make-hooks"
2936 . ${srcdir}/$s/config-lang.in
2937 if test "x$language" = x
2939 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2942 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2943 if test -f ${srcdir}/$s/Makefile.in
2944 then all_lang_makefiles="$s/Makefile"
2946 all_languages="$all_languages $language"
2947 if test "x$boot_language" = xyes
2949 all_boot_languages="$all_boot_languages $language"
2951 all_compilers="$all_compilers $compilers"
2952 all_stagestuff="$all_stagestuff $stagestuff"
2953 all_outputs="$all_outputs $outputs"
2954 all_gtfiles="$all_gtfiles $gtfiles"
2957 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2958 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2962 # Pick up gtfiles for c
2965 . ${srcdir}/c-config-lang.in
2966 all_gtfiles="$all_gtfiles $gtfiles"
2969 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2970 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2974 for language in $all_languages
2976 check_languages="$check_languages check-$language"
2979 # We link each language in with a set of hooks, reached indirectly via
2984 target_list="all.build all.cross start.encap rest.encap tags \
2985 install-normal install-common install-man \
2986 uninstall info man srcextra srcman srcinfo \
2987 mostlyclean clean distclean maintainer-clean \
2988 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2989 for t in $target_list
2992 for lang in $all_languages
2996 echo "lang.$t: $x" >> Make-hooks
3005 echo "dir ." > .gdbinit
3006 echo "dir ${srcdir}" >> .gdbinit
3007 if test x$gdb_needs_out_file_path = xyes
3009 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3011 if test "x$subdirs" != x; then
3014 echo "dir ${srcdir}/$s" >> .gdbinit
3017 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3019 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3020 # absolute path for gcc_tooldir based on inserting the number of up-directory
3021 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3022 # $(libsubdir)/@(unlibsubdir) based path.
3023 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3024 # make and thus we'd get different behavior depending on where we built the
3026 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3027 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3029 changequote(<<, >>)dnl
3030 # An explanation of the sed strings:
3031 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3032 # -e 's|/$||' match a trailing forward slash and eliminates it
3033 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3034 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3036 # (*) Note this pattern overwrites the first character of the string
3037 # with a forward slash if one is not already present. This is not a
3038 # problem because the exact names of the sub-directories concerned is
3039 # unimportant, just the number of them matters.
3041 # The practical upshot of these patterns is like this:
3043 # prefix exec_prefix result
3044 # ------ ----------- ------
3046 # /foo/ /foo/bar ../
3047 # /foo /foo/bar/ ../
3048 # /foo/ /foo/bar/ ../
3049 # /foo /foo/bar/ugg ../../
3052 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3053 changequote([, ])dnl
3055 AC_SUBST(gcc_tooldir)
3058 # Find a directory in which to install a shared libgcc.
3060 AC_ARG_ENABLE(version-specific-runtime-libs,
3061 [ --enable-version-specific-runtime-libs
3062 specify that runtime libraries should be
3063 installed in a compiler-specific directory])
3065 AC_ARG_WITH(slibdir,
3066 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3067 slibdir="$with_slibdir",
3068 if test "${enable_version_specific_runtime_libs+set}" = set; then
3069 slibdir='$(libsubdir)'
3070 elif test "$host" != "$target"; then
3071 slibdir='$(build_tooldir)/lib'
3077 objdir=`${PWDCMD-pwd}`
3080 # Substitute configuration variables
3083 AC_SUBST(all_boot_languages)
3084 AC_SUBST(all_compilers)
3085 AC_SUBST(all_gtfiles)
3086 AC_SUBST(all_gtfiles_files_langs)
3087 AC_SUBST(all_gtfiles_files_files)
3088 AC_SUBST(all_lang_makefrags)
3089 AC_SUBST(all_lang_makefiles)
3090 AC_SUBST(all_languages)
3091 AC_SUBST(all_stagestuff)
3092 AC_SUBST(build_exeext)
3093 AC_SUBST(build_install_headers_dir)
3094 AC_SUBST(build_xm_file_list)
3095 AC_SUBST(build_xm_include_list)
3096 AC_SUBST(build_xm_defines)
3097 AC_SUBST(check_languages)
3098 AC_SUBST(cc_set_by_configure)
3099 AC_SUBST(quoted_cc_set_by_configure)
3100 AC_SUBST(cpp_install_dir)
3101 AC_SUBST(xmake_file)
3102 AC_SUBST(tmake_file)
3103 AC_SUBST(extra_gcc_objs)
3104 AC_SUBST(extra_headers_list)
3105 AC_SUBST(extra_objs)
3106 AC_SUBST(extra_parts)
3107 AC_SUBST(extra_passes)
3108 AC_SUBST(extra_programs)
3109 AC_SUBST(float_h_file)
3110 AC_SUBST(gcc_config_arguments)
3111 AC_SUBST(gcc_gxx_include_dir)
3112 AC_SUBST(libstdcxx_incdir)
3113 AC_SUBST(gcc_version)
3114 AC_SUBST(gcc_version_full)
3115 AC_SUBST(gcc_version_trigger)
3116 AC_SUBST(host_exeext)
3117 AC_SUBST(host_xm_file_list)
3118 AC_SUBST(host_xm_include_list)
3119 AC_SUBST(host_xm_defines)
3120 AC_SUBST(out_host_hook_obj)
3122 AC_SUBST(lang_opt_files)
3123 AC_SUBST(lang_specs_files)
3124 AC_SUBST(lang_tree_files)
3125 AC_SUBST(local_prefix)
3127 AC_SUBST(objc_boehm_gc)
3129 AC_SUBST(out_object_file)
3130 AC_SUBST(stage_prefix_set_by_configure)
3131 AC_SUBST(quoted_stage_prefix_set_by_configure)
3132 AC_SUBST(symbolic_link)
3133 AC_SUBST(thread_file)
3134 AC_SUBST(tm_file_list)
3135 AC_SUBST(tm_include_list)
3136 AC_SUBST(tm_defines)
3137 AC_SUBST(tm_p_file_list)
3138 AC_SUBST(tm_p_include_list)
3139 AC_SUBST(xm_file_list)
3140 AC_SUBST(xm_include_list)
3141 AC_SUBST(xm_defines)
3142 AC_SUBST(target_noncanonical)
3143 AC_SUBST(c_target_objs)
3144 AC_SUBST(cxx_target_objs)
3145 AC_SUBST(target_cpu_default)
3147 AC_SUBST_FILE(language_hooks)
3149 # If it doesn't already exist, create document directory
3150 echo "checking for the document directory." 1>&2
3151 if test -d doc ; then
3158 if test x${build} = x${host} ; then
3159 if test x${host} = x${target} ; then
3160 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3162 echo "Links are now set up to build a cross-compiler" 1>&2
3163 echo " from ${host} to ${target}." 1>&2
3166 if test x${host} = x${target} ; then
3167 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3168 echo " for ${target}." 1>&2
3170 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3171 echo " from ${host} to ${target}." 1>&2
3175 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3176 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3178 # Configure the subdirectories
3179 # AC_CONFIG_SUBDIRS($subdirs)
3181 # Create the Makefile
3182 # and configure language subdirectories
3183 AC_CONFIG_FILES($all_outputs)
3185 AC_CONFIG_COMMANDS([default],
3187 case ${CONFIG_HEADERS} in
3188 *auto-host.h:config.in*)
3191 # Make sure all the subdirs exist.
3194 test -d $d || mkdir $d
3196 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3197 # bootstrapping and the installation procedure can still use
3198 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3199 # FLAGS_TO_PASS has been modified to solve the problem there.
3200 # This is virtually a duplicate of what happens in configure.lang; we do
3201 # an extra check to make sure this only happens if ln -s can be used.
3202 if test "$symbolic_link" = "ln -s"; then
3203 for d in ${subdirs} fixinc ; do
3204 STARTDIR=`${PWDCMD-pwd}`
3206 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3209 $symbolic_link ../$t $t 2>/dev/null
3216 symbolic_link='$symbolic_link'