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 # With demangler in GNU ld
215 AC_ARG_WITH(demangler-in-ld,
216 [ --with-demangler-in-ld try to use demangler in GNU ld.],
217 demangler_in_ld="$with_demangler_in_ld",
220 # ----------------------
221 # Find default assembler
222 # ----------------------
226 [ --with-gnu-as arrange to work with GNU as],
227 gas_flag="$with_gnu_as",
231 [ --with-as arrange to use the specified as (full pathname)],
232 DEFAULT_ASSEMBLER="$with_as")
233 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
234 if test ! -x "$DEFAULT_ASSEMBLER"; then
235 AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
236 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
239 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
240 [Define to enable the use of a default assembler.])
243 AC_MSG_CHECKING([whether a default assembler was specified])
244 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
245 if test x"$gas_flag" = x"no"; then
246 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
248 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
258 # If a non-executable a.out is present (e.g. created by GNU as above even if
259 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
260 # file, even when creating an executable, so an execution test fails.
261 # Remove possible default executable files to avoid this.
263 # FIXME: This really belongs into AC_PROG_CC and can be removed once
264 # Autoconf includes it.
265 rm -f a.out a.exe b.out
267 # Find the native compiler
270 # autoconf is lame and doesn't give us any substitution variable for this.
271 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
272 NO_MINUS_C_MINUS_O=yes
274 OUTPUT_OPTION='-o $@'
276 AC_SUBST(NO_MINUS_C_MINUS_O)
277 AC_SUBST(OUTPUT_OPTION)
279 # -------------------------
280 # Check C compiler features
281 # -------------------------
288 # sizeof(char) is 1 by definition.
289 AC_COMPILE_CHECK_SIZEOF(void *)
290 AC_COMPILE_CHECK_SIZEOF(short)
291 AC_COMPILE_CHECK_SIZEOF(int)
292 AC_COMPILE_CHECK_SIZEOF(long)
293 if test $ac_cv_c_long_long = yes; then
294 AC_COMPILE_CHECK_SIZEOF(long long)
296 if test $ac_cv_c___int64 = yes; then
297 AC_COMPILE_CHECK_SIZEOF(__int64)
300 # ---------------------
301 # Warnings and checking
302 # ---------------------
304 # Check $CC warning features (if it's GCC).
305 # We want to use -pedantic, but we don't want warnings about
308 # So, we only use -pedantic if we can disable those warnings.
311 [whether ${CC} accepts -Wno-long-long],
312 [ac_cv_prog_cc_w_no_long_long],
313 [save_CFLAGS="$CFLAGS"
314 CFLAGS="-Wno-long-long"
315 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
316 [ac_cv_prog_cc_w_no_long_long=yes],
317 [ac_cv_prog_cc_w_no_long_long=no])
318 CFLAGS="$save_CFLAGS"
322 [whether ${CC} accepts -Wno-variadic-macros],
323 [ac_cv_prog_cc_w_no_variadic_macros],
324 [save_CFLAGS="$CFLAGS"
325 CFLAGS="-Wno-variadic-macros"
326 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
327 [ac_cv_prog_cc_w_no_variadic_macros=yes],
328 [ac_cv_prog_cc_w_no_variadic_macros=no])
329 CFLAGS="$save_CFLAGS"
333 if test $ac_cv_prog_cc_w_no_long_long = yes \
334 && test $ac_cv_prog_cc_w_no_variadic_macros = yes ; then
335 strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros"
337 AC_SUBST(strict1_warn)
339 # Add -Wold-style-definition if it's accepted
341 [whether ${CC} accepts -Wold-style-definition],
342 [ac_cv_prog_cc_w_old_style_definition],
343 [save_CFLAGS="$CFLAGS"
344 CFLAGS="-Wold-style-definition"
345 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
346 [ac_cv_prog_cc_w_old_style_definition=yes],
347 [ac_cv_prog_cc_w_old_style_definition=no])
348 CFLAGS="$save_CFLAGS"
350 if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
351 strict1_warn="${strict1_warn} -Wold-style-definition"
354 # Enable -Werror, period.
355 AC_ARG_ENABLE(werror_always,
356 [ --enable-werror-always enable -Werror always], [],
357 [enable_werror_always=no])
358 if test x${enable_werror_always} = xyes ; then
359 strict1_warn="${strict1_warn} -Werror"
363 # If the native compiler is GCC, we can enable warnings even in stage1.
364 # That's useful for people building cross-compilers, or just running a
367 if test "x$GCC" = "xyes"; then
368 warn_cflags='$(GCC_WARN_CFLAGS)'
370 AC_SUBST(warn_cflags)
372 # Enable -Werror in bootstrap stage2 and later.
373 # Change the default to "no" on release branches.
374 AC_ARG_ENABLE(werror,
375 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
377 if test x$enable_werror = xyes ; then
382 # Enable expensive internal checks
383 AC_ARG_ENABLE(checking,
384 [ --enable-checking[=LIST]
385 enable expensive run-time checks. With LIST,
386 enable only specific categories of checks.
387 Categories are: fold,gc,gcac,misc,rtlflag,rtl,
388 tree,valgrind; default is gc,misc,rtlflag,tree],
394 ac_gc_always_collect=
396 case "${enableval}" in
397 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
398 ac_rtlflag_checking=1 ;;
400 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
401 set fnord $enableval; shift
406 fold) ac_fold_checking=1 ;;
407 gc) ac_gc_checking=1 ;;
408 gcac) ac_gc_always_collect=1 ;;
409 misc) ac_checking=1 ;;
410 rtlflag) ac_rtlflag_checking=1 ;;
411 rtl) ac_rtl_checking=1 ;;
412 tree) ac_tree_checking=1 ;;
413 valgrind) ac_checking_valgrind=1 ;;
414 *) AC_MSG_ERROR(unknown check category $check) ;;
420 # Enable some checks by default for development versions of GCC
421 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
423 if test x$ac_checking != x ; then
424 AC_DEFINE(ENABLE_CHECKING, 1,
425 [Define if you want more run-time sanity checks. This one gets a grab
426 bag of miscellaneous but relatively cheap checks.])
427 nocommon_flag=-fno-common
429 AC_SUBST(nocommon_flag)
430 if test x$ac_tree_checking != x ; then
431 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
432 [Define if you want all operations on trees (the basic data
433 structure of the front ends) to be checked for dynamic type safety
434 at runtime. This is moderately expensive. The tree browser debugging
435 routines will also be enabled by this option.
437 TREEBROWSER=tree-browser.o
439 AC_SUBST(TREEBROWSER)
440 if test x$ac_rtl_checking != x ; then
441 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
442 [Define if you want all operations on RTL (the basic data structure
443 of the optimizer and back end) to be checked for dynamic type safety
444 at runtime. This is quite expensive.])
446 if test x$ac_rtlflag_checking != x ; then
447 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
448 [Define if you want RTL flag accesses to be checked against the RTL
449 codes that are supported for each access macro. This is relatively
452 if test x$ac_gc_checking != x ; then
453 AC_DEFINE(ENABLE_GC_CHECKING, 1,
454 [Define if you want the garbage collector to do object poisoning and
455 other memory allocation checks. This is quite expensive.])
457 if test x$ac_gc_always_collect != x ; then
458 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
459 [Define if you want the garbage collector to operate in maximally
460 paranoid mode, validating the entire heap and collecting garbage at
461 every opportunity. This is extremely expensive.])
463 if test x$ac_fold_checking != x ; then
464 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
465 [Define if you want fold checked that it never destructs its argument.
466 This is quite expensive.])
468 valgrind_path_defines=
471 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
472 dnl # an if statement. This was the source of very frustrating bugs
473 dnl # in converting to autoconf 2.5x!
474 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
476 if test x$ac_checking_valgrind != x ; then
477 # It is certainly possible that there's valgrind but no valgrind.h.
478 # GCC relies on making annotations so we must have both.
479 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
481 [#include <valgrind/memcheck.h>
482 #ifndef VALGRIND_DISCARD
483 #error VALGRIND_DISCARD not defined
485 [gcc_cv_header_valgrind_memcheck_h=yes],
486 [gcc_cv_header_valgrind_memcheck_h=no])
487 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
488 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
490 [#include <memcheck.h>
491 #ifndef VALGRIND_DISCARD
492 #error VALGRIND_DISCARD not defined
494 [gcc_cv_header_memcheck_h=yes],
495 gcc_cv_header_memcheck_h=no)
496 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
497 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
498 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
499 if test "x$valgrind_path" = "x" \
500 || (test $have_valgrind_h = no \
501 && test $gcc_cv_header_memcheck_h = no \
502 && test $gcc_cv_header_valgrind_memcheck_h = no); then
503 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
505 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
506 valgrind_command="$valgrind_path -q"
507 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
508 [Define if you want to run subprograms and generated programs
509 through valgrind (a memory checker). This is extremely expensive.])
510 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
511 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
512 [Define if valgrind's valgrind/memcheck.h header is installed.])
514 if test $gcc_cv_header_memcheck_h = yes; then
515 AC_DEFINE(HAVE_MEMCHECK_H, 1,
516 [Define if valgrind's memcheck.h header is installed.])
519 AC_SUBST(valgrind_path_defines)
520 AC_SUBST(valgrind_command)
522 AC_ARG_ENABLE(mapped-location,
523 [ --enable-mapped-location location_t is fileline integer cookie],,
524 enable_mapped_location=no)
526 if test "$enable_mapped_location" = yes ; then
527 AC_DEFINE(USE_MAPPED_LOCATION, 1,
528 [Define if location_t is fileline integer cookie.])
531 # Enable code coverage collection
532 AC_ARG_ENABLE(coverage,
533 [ --enable-coverage[=LEVEL]
534 enable compiler\'s code coverage collection.
535 Use to measure compiler performance and locate
536 unused parts of the compiler. With LEVEL, specify
537 optimization. Values are opt, noopt,
539 [case "${enableval}" in
541 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
544 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
547 # a.k.a. --disable-coverage
551 AC_MSG_ERROR(unknown coverage setting $enableval)
555 AC_SUBST(coverage_flags)
557 AC_ARG_ENABLE(gather-detailed-mem-stats,
558 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
559 [enable_gather_detailed_mem_stats=no])
560 if test x$enable_gather_detailed_mem_stats = xyes ; then
561 AC_DEFINE(GATHER_STATISTICS, 1,
562 [Define to enable detailed memory allocation stats gathering.])
565 # -------------------------------
566 # Miscenalleous configure options
567 # -------------------------------
571 [ --with-stabs arrange to use stabs instead of host debug format],
575 # Determine whether or not multilibs are enabled.
576 AC_ARG_ENABLE(multilib,
577 [ --enable-multilib enable library support for multiple ABIs],
578 [], [enable_multilib=yes])
579 AC_SUBST(enable_multilib)
581 # Enable __cxa_atexit for C++.
582 AC_ARG_ENABLE(__cxa_atexit,
583 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
587 # Pass with no value to take the default
588 # Pass with a value to specify a thread package
589 AC_ARG_ENABLE(threads,
590 [ --enable-threads enable thread usage for target GCC
591 --enable-threads=LIB use LIB thread package for target GCC],,
594 AC_ARG_ENABLE(objc-gc,
595 [ --enable-objc-gc enable the use of Boehm's garbage collector with
596 the GNU Objective-C runtime],
597 if test x$enable_objc_gc = xno; then
605 [ --with-dwarf2 force the default debug format to be DWARF 2],
606 dwarf2="$with_dwarf2",
609 AC_ARG_ENABLE(shared,
610 [ --disable-shared don't provide a shared libgcc],
612 case $enable_shared in
616 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
617 for pkg in $enableval; do
618 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
625 ], [enable_shared=yes])
626 AC_SUBST(enable_shared)
629 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
631 case ${with_sysroot} in
632 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
633 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
636 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
637 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
639 if test "x$exec_prefix" = xNONE; then
640 if test "x$prefix" = xNONE; then
641 test_prefix=/usr/local
646 test_prefix=$exec_prefix
648 case ${TARGET_SYSTEM_ROOT} in
649 "${test_prefix}"|"${test_prefix}/"*|\
650 '${exec_prefix}'|'${exec_prefix}/'*)
651 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
652 TARGET_SYSTEM_ROOT_DEFINE="$t"
657 TARGET_SYSTEM_ROOT_DEFINE=
658 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
660 AC_SUBST(TARGET_SYSTEM_ROOT)
661 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
662 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
664 # Build with intermodule optimisations
665 AC_ARG_ENABLE(intermodule,
666 [ --enable-intermodule build the compiler in one step],
667 [case ${enable_intermodule} in
668 yes) onestep="-onestep";;
674 # Sanity check enable_languages in case someone does not run the toplevel
675 # configure # script.
676 AC_ARG_ENABLE(languages,
677 [ --enable-languages=LIST specify which front-ends to build],
678 [case ,${enable_languages}, in
680 # go safe -- we cannot be much sure without the toplevel
682 # analysis of which target libs are present and usable
686 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
691 enable_languages=c,${enable_languages}
694 [enable_languages=c])
697 for lang in ${srcdir}/*/config-lang.in
700 # The odd quoting in the next line works around
701 # an apparent bug in bash 1.12 on linux.
703 ${srcdir}/[*]/config-lang.in) ;;
705 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
706 if test "x$lang_alias" = x
708 echo "$lang doesn't set \$language." 1>&2
711 case ",$enable_languages," in
713 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
721 # -------------------------
722 # Checks for other programs
723 # -------------------------
727 # Find some useful tools
729 # We need awk to create options.c and options.h.
730 # Bail out if it's missing.
732 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
740 # By default, the Darwin ranlib will not treat common symbols as
741 # definitions when building the archive table of contents. Other
742 # ranlibs do that; pass an option to the Darwin ranlib that makes
743 # it behave similarly.
749 AC_SUBST(ranlib_flags)
753 # See if cmp has --ignore-initial.
754 gcc_AC_PROG_CMP_IGNORE_INITIAL
756 # See if we have the mktemp command.
757 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
759 # Do we have a single-tree copy of texinfo?
760 if test -f $srcdir/../texinfo/Makefile.in; then
761 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
762 gcc_cv_prog_makeinfo_modern=yes
763 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
765 # See if makeinfo has been installed and is modern enough
766 # that we can use it.
767 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
768 [GNU texinfo.* \([0-9][0-9.]*\)],
772 if test $gcc_cv_prog_makeinfo_modern = no; then
774 *** Makeinfo is missing or too old.
775 *** Info documentation will not be built.])
778 BUILD_INFO=info AC_SUBST(BUILD_INFO)
781 # Is pod2man recent enough to regenerate manpages?
782 AC_MSG_CHECKING([for recent Pod::Man])
783 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
785 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
792 dnl Don't use AC_PROG_LEX; we insist on flex.
793 dnl LEXLIB is not useful in gcc.
794 if test x${build} = x${host} && test -f $srcdir/../flex/skel.c; then
795 FLEX='$(objdir)/../flex/flex'
797 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
801 # The -L switch is so bison can find its skeleton file.
802 if test x${build} = x${host} && test -f $srcdir/../bison/bison.simple; then
803 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
805 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
809 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c; then
810 NM='$(objdir)/../binutils/nm-new'
812 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
816 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c; then
817 AR='$(objdir)/../binutils/ar'
819 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
823 # --------------------
824 # Checks for C headers
825 # --------------------
827 AC_MSG_CHECKING(for GNU C library)
828 AC_CACHE_VAL(gcc_cv_glibc,
830 [#include <features.h>],[
831 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
832 #error Not a GNU C library system
836 AC_MSG_RESULT($gcc_cv_glibc)
837 if test $gcc_cv_glibc = yes; then
838 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
841 # Need to reject headers which give warnings, so that the -Werror bootstrap
842 # works later. *sigh* This needs to come before all header checks.
849 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
850 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
851 sys/resource.h sys/param.h sys/times.h sys/stat.h \
852 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
854 # Check for thread headers.
855 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
856 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
858 # These tests can't be done till we know if we have limits.h.
866 # Stage specific cflags for build.
872 stage1_cflags="-Wa,-J"
878 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
879 # sources; use -no-cpp-precomp to get to GNU cpp.
880 # Apple's GCC has bugs in designated initializer handling, so disable
882 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
885 AC_SUBST(stage1_cflags)
887 # These libraries may be used by collect2.
888 # We may need a special search path to get them linked.
889 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
891 for libs in '' -lld -lmld \
892 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
893 '-L/usr/lib/cmplrs/cc3.11 -lmld'
896 AC_TRY_LINK_FUNC(ldopen,
897 [gcc_cv_collect2_libs="$libs"; break])
900 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
901 case $gcc_cv_collect2_libs in
903 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
905 AC_SUBST(COLLECT2_LIBS)
907 # When building Ada code on Alpha, we need exc_resume which is usually in
908 # -lexc. So test for it.
911 AC_SEARCH_LIBS(exc_resume, exc)
914 AC_SUBST(GNAT_LIBEXC)
916 # Some systems put ldexp and frexp in libm instead of libc; assume
917 # they're both in the same place. jcf-dump needs them.
920 AC_SEARCH_LIBS(ldexp, m)
925 # Use <inttypes.h> only if it exists,
926 # doesn't clash with <sys/types.h>, and declares intmax_t.
927 AC_MSG_CHECKING(for inttypes.h)
928 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
930 [#include <sys/types.h>
931 #include <inttypes.h>],
933 [gcc_cv_header_inttypes_h=yes],
934 gcc_cv_header_inttypes_h=no)])
935 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
936 if test $gcc_cv_header_inttypes_h = yes; then
937 AC_DEFINE(HAVE_INTTYPES_H, 1,
938 [Define if you have a working <inttypes.h> header file.])
941 dnl Disabled until we have a complete test for buggy enum bitfields.
942 dnl gcc_AC_C_ENUM_BF_UNSIGNED
944 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
945 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
946 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
947 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
950 if test x$ac_cv_func_mbstowcs = xyes; then
951 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
952 [ AC_TRY_RUN([#include <stdlib.h>
958 gcc_cv_func_mbstowcs_works=yes,
959 gcc_cv_func_mbstowcs_works=no,
960 gcc_cv_func_mbstowcs_works=yes)])
961 if test x$gcc_cv_func_mbstowcs_works = xyes; then
962 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
963 [Define this macro if mbstowcs does not crash when its
964 first argument is NULL.])
968 AC_CHECK_TYPE(ssize_t, int)
970 # Try to determine the array type of the second argument of getgroups
971 # for the target system (int or gid_t).
973 if test "${target}" = "${build}"; then
974 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
977 # This condition may need some tweaking. It should include all
978 # targets where the array type of the second argument of getgroups
979 # is int and the type of gid_t is not equivalent to int.
980 *-*-sunos* | *-*-ultrix*)
981 TARGET_GETGROUPS_T=int
984 TARGET_GETGROUPS_T=gid_t
988 AC_SUBST(TARGET_GETGROUPS_T)
990 gcc_AC_FUNC_PRINTF_PTR
991 gcc_AC_FUNC_MMAP_BLACKLIST
995 # Under VMS, vfork works very differently than on Unix. The standard test
996 # won't work, and it isn't easily adaptable. It makes more sense to
998 ac_cv_func_vfork_works=yes
1004 # Until we have in-tree GNU iconv:
1006 AC_SUBST(LIBICONV_DEP)
1010 # We will need to find libiberty.h and ansidecl.h
1011 saved_CFLAGS="$CFLAGS"
1012 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1013 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
1014 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
1015 fprintf_unlocked strstr errno snprintf vasprintf \
1016 malloc realloc calloc free basename getopt clock getpagesize, , ,[
1017 #include "ansidecl.h"
1018 #include "system.h"])
1020 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1021 #include "ansidecl.h"
1023 #ifdef HAVE_SYS_RESOURCE_H
1024 #include <sys/resource.h>
1029 #include "ansidecl.h"
1031 #ifdef HAVE_SYS_RESOURCE_H
1032 #include <sys/resource.h>
1034 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
1035 [Define to \`long' if <sys/resource.h> doesn't define.])])
1037 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1038 #include "ansidecl.h"
1045 gcc_AC_CHECK_DECLS(times, , ,[
1046 #include "ansidecl.h"
1048 #ifdef HAVE_SYS_TIMES_H
1049 #include <sys/times.h>
1053 # More time-related stuff.
1054 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1056 #include "ansidecl.h"
1058 #ifdef HAVE_SYS_TIMES_H
1059 #include <sys/times.h>
1061 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
1062 if test $ac_cv_struct_tms = yes; then
1063 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1064 [Define if <sys/times.h> defines struct tms.])
1067 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1068 # revisit after autoconf 2.50.
1069 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1071 #include "ansidecl.h"
1073 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
1074 if test $gcc_cv_type_clock_t = yes; then
1075 AC_DEFINE(HAVE_CLOCK_T, 1,
1076 [Define if <time.h> defines clock_t.])
1079 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1080 CFLAGS="$saved_CFLAGS"
1082 gcc_AC_INITFINI_ARRAY
1084 # mkdir takes a single argument on some systems.
1085 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1093 # With Setjmp/Longjmp based exception handling.
1094 AC_ARG_ENABLE(sjlj-exceptions,
1095 [ --enable-sjlj-exceptions
1096 arrange to use setjmp/longjmp exception handling],
1097 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1098 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1099 [Define 0/1 to force the choice for exception handling model.])])
1101 if test x$host = x$target; then
1102 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
1104 use_libunwind_default=no
1106 # Use libunwind based exception handling.
1107 AC_ARG_ENABLE(libunwind-exceptions,
1108 [ --enable-libunwind-exceptions force use libunwind for exceptions],
1109 use_libunwind_exceptions=$enableval,
1110 use_libunwind_exceptions=$use_libunwind_default)
1111 if test x"$use_libunwind_exceptions" = xyes; then
1112 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
1113 [Define if gcc should use -lunwind.])
1116 # --------------------------------------------------------
1117 # Build, host, and target specific configuration fragments
1118 # --------------------------------------------------------
1120 # Collect build-machine-specific information.
1121 . ${srcdir}/config.build
1123 # Collect host-machine-specific information.
1124 . ${srcdir}/config.host
1128 # Collect target-machine-specific information.
1129 . ${srcdir}/config.gcc
1131 extra_objs="${host_extra_objs} ${extra_objs}"
1132 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1134 # Default the target-machine variables that were not explicitly set.
1135 if test x"$tm_file" = x
1136 then tm_file=$cpu_type/$cpu_type.h; fi
1138 if test x"$extra_headers" = x
1139 then extra_headers=; fi
1141 if test x$md_file = x
1142 then md_file=$cpu_type/$cpu_type.md; fi
1144 if test x$out_file = x
1145 then out_file=$cpu_type/$cpu_type.c; fi
1147 if test x"$tmake_file" = x
1148 then tmake_file=$cpu_type/t-$cpu_type
1151 if test x"$dwarf2" = xyes
1152 then tm_file="$tm_file tm-dwarf2.h"
1155 # Say what files are being used for the output code and MD file.
1156 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1157 echo "Using \`$srcdir/config/$md_file' as machine description file."
1159 # If any of the xm_file variables contain nonexistent files, warn
1160 # about them and drop them.
1163 for x in $build_xm_file; do
1164 if test -f $srcdir/config/$x
1166 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1172 for x in $host_xm_file; do
1173 if test -f $srcdir/config/$x
1175 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1181 for x in $xm_file; do
1182 if test -f $srcdir/config/$x
1184 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1190 for f in $tm_file; do
1193 if test $count = ax; then
1194 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1196 echo "Using the following target machine macro files:"
1197 for f in $tm_file; do
1198 echo " $srcdir/config/$f"
1202 if test x$need_64bit_hwint = xyes; then
1203 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1204 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1208 for f in $host_xm_file; do
1211 if test $count = a; then
1213 elif test $count = ax; then
1214 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1216 echo "Using the following host machine macro files:"
1217 for f in $host_xm_file; do
1218 echo " $srcdir/config/$f"
1221 echo "Using ${out_host_hook_obj} for host machine hooks."
1223 if test "$host_xm_file" != "$build_xm_file"; then
1225 for f in $build_xm_file; do
1228 if test $count = a; then
1230 elif test $count = ax; then
1231 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1233 echo "Using the following build machine macro files:"
1234 for f in $build_xm_file; do
1235 echo " $srcdir/config/$f"
1244 # Check if a valid thread package
1245 case ${enable_threads} in
1248 target_thread_file='single'
1252 target_thread_file='single'
1254 aix | dce | gnat | irix | posix | rtems | \
1255 single | solaris | vxworks | win32 )
1256 target_thread_file=${enable_threads}
1259 echo "${enable_threads} is an unknown thread package" 1>&2
1264 if test x${thread_file} = x; then
1265 # No thread file set by target-specific clauses in config.gcc,
1266 # so use file chosen by default logic above
1267 thread_file=${target_thread_file}
1270 # Make gthr-default.h if we have a thread file.
1272 if test $thread_file != single; then
1273 rm -f gthr-default.h
1274 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1275 gthread_flags=-DHAVE_GTHR_DEFAULT
1277 AC_SUBST(gthread_flags)
1283 if test x$enable___cxa_atexit = xyes || \
1284 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1285 AC_CHECK_FUNC(__cxa_atexit,
1286 [AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1287 [Define if you want to use __cxa_atexit, rather than atexit, to
1288 register C++ destructors for local statics and global objects.
1289 This is essential for fully standards-compliant handling of
1290 destructors, but requires __cxa_atexit in libc.])],
1291 echo "__cxa_atexit can't be enabled on this target")
1294 # Look for a file containing extra machine modes.
1295 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1296 extra_modes_file='$(srcdir)'/config/${extra_modes}
1297 AC_SUBST(extra_modes_file)
1298 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1299 [Define to the name of a file containing a list of extra machine modes
1300 for this architecture.])
1303 # auto-host.h is the file containing items generated by autoconf and is
1304 # the first file included by config.h.
1305 # If host=build, it is correct to have bconfig include auto-host.h
1306 # as well. If host!=build, we are in error and need to do more
1307 # work to find out the build config parameters.
1308 if test x$host = x$build
1310 build_auto=auto-host.h
1313 # We create a subdir, then run autoconf in the subdir.
1314 # To prevent recursion we set host and build for the new
1315 # invocation of configure to the build for this invocation
1322 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1323 *) realsrcdir=../${srcdir};;
1325 saved_CFLAGS="${CFLAGS}"
1326 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1327 ${realsrcdir}/configure \
1328 --enable-languages=${enable_languages-all} \
1329 --target=$target_alias --host=$build_alias --build=$build_alias
1330 CFLAGS="${saved_CFLAGS}"
1332 # We just finished tests for the build machine, so rename
1333 # the file auto-build.h in the gcc directory.
1334 mv auto-host.h ../auto-build.h
1337 build_auto=auto-build.h
1338 FORBUILD=../${build_subdir}
1342 tm_file="${tm_file} defaults.h"
1343 tm_p_file="${tm_p_file} tm-preds.h"
1344 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1345 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1346 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1347 # put this back in temporarily.
1348 xm_file="ansidecl.h ${xm_file}"
1354 # Get the version trigger filename from the toplevel
1355 if test "${with_gcc_version_trigger+set}" = set; then
1356 gcc_version_trigger=$with_gcc_version_trigger
1358 gcc_version_trigger=${srcdir}/version.c
1361 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1362 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1364 # Compile in configure arguments.
1365 if test -f configargs.h ; then
1366 # Being re-configured.
1367 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1368 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1370 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1373 # Double all backslashes and backslash all quotes to turn
1374 # gcc_config_arguments into a C string.
1375 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1376 $gcc_config_arguments
1378 gcc_config_arguments_str=`cat conftest.out`
1381 cat > configargs.h <<EOF
1382 /* Generated automatically. */
1383 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1384 static const char thread_model[] = "$thread_file";
1386 static const struct {
1387 const char *name, *value;
1388 } configure_default_options[] = $configure_default_options;
1392 # Internationalization
1394 VERSION="$gcc_version"
1395 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
1396 [The name of this program for internationalization purposes.])
1400 ZW_GNU_GETTEXT_SISTER_DIR
1402 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1403 # -liconv on the link line twice.
1404 case "$LIBINTL" in *$LIBICONV*)
1408 # Windows32 Registry support for specifying GCC installation paths.
1409 AC_ARG_ENABLE(win32-registry,
1410 [ --disable-win32-registry
1411 disable lookup of installation paths in the
1412 Registry on Windows hosts
1413 --enable-win32-registry enable registry lookup (default)
1414 --enable-win32-registry=KEY
1415 use KEY instead of GCC version as the last portion
1416 of the registry key],,)
1418 win32 | pe | cygwin* | mingw32* | uwin*)
1419 AC_MSG_CHECKING(whether windows registry support is requested)
1420 if test "x$enable_win32_registry" != xno; then
1421 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1422 [Define to 1 if installation paths should be looked up in Windows32
1423 Registry. Ignored on non windows32 hosts.])
1425 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1430 # Check if user specified a different registry key.
1431 case "x${enable_win32_registry}" in
1434 gcc_cv_win32_registry_key="$VERSION"
1437 # no registry lookup.
1438 gcc_cv_win32_registry_key=''
1441 # user-specified key.
1442 gcc_cv_win32_registry_key="$enable_win32_registry"
1446 if test "x$enable_win32_registry" != xno; then
1447 AC_MSG_CHECKING(registry key on windows hosts)
1448 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1449 [Define to be the last portion of registry key on windows hosts.])
1450 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1455 # Get an absolute path to the GCC top-level source directory
1456 holddir=`${PWDCMD-pwd}`
1458 topdir=`${PWDCMD-pwd}`
1461 # Conditionalize the makefile for this host machine.
1463 for f in ${host_xmake_file}
1465 if test -f ${srcdir}/config/$f
1467 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1471 # Conditionalize the makefile for this target machine.
1473 for f in ${tmake_file}
1475 if test -f ${srcdir}/config/$f
1477 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1480 tmake_file="${tmake_file_}"
1482 symbolic_link='ln -s'
1484 # If the host doesn't support symlinks, modify CC in
1485 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1486 # Otherwise, we can use "CC=$(CC)".
1488 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1490 cc_set_by_configure="\$(CC)"
1491 quoted_cc_set_by_configure="\$(CC)"
1492 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1493 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1496 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1498 symbolic_link="cp -p"
1502 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1503 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1504 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1505 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1509 out_object_file=`basename $out_file .c`.o
1513 for f in $tm_file; do
1516 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1517 tm_include_list="${tm_include_list} $f"
1520 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1521 tm_include_list="${tm_include_list} config/$f"
1528 for f in $tm_p_file; do
1531 tm_p_file_list="${tm_p_file_list} $f"
1532 tm_p_include_list="${tm_p_include_list} $f"
1535 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1536 tm_p_include_list="${tm_p_include_list} config/$f"
1542 for f in $xm_file; do
1545 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1546 xm_include_list="${xm_include_list} $f"
1549 xm_file_list="${xm_file_list} $f"
1550 xm_include_list="${xm_include_list} $f"
1553 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1554 xm_include_list="${xm_include_list} config/$f"
1560 host_xm_include_list=
1561 for f in $host_xm_file; do
1564 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1565 host_xm_include_list="${host_xm_include_list} $f"
1568 host_xm_file_list="${host_xm_file_list} $f"
1569 host_xm_include_list="${host_xm_include_list} $f"
1572 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1573 host_xm_include_list="${host_xm_include_list} config/$f"
1579 for f in $build_xm_file; do
1582 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1583 build_xm_include_list="${build_xm_include_list} $f"
1585 auto-build.h | auto-host.h )
1586 build_xm_file_list="${build_xm_file_list} $f"
1587 build_xm_include_list="${build_xm_include_list} $f"
1590 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1591 build_xm_include_list="${build_xm_include_list} config/$f"
1596 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1597 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1598 CROSS= AC_SUBST(CROSS)
1599 ALL=all.internal AC_SUBST(ALL)
1600 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1601 if test x$host != x$target
1603 CROSS="-DCROSS_COMPILE"
1605 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1606 case "$host","$target" in
1607 # Darwin crosses can use the host system's libraries and headers,
1608 # because of the fat library support. Of course, it must be the
1609 # same version of Darwin on both sides. Allow the user to
1610 # just say --target=foo-darwin without a version number to mean
1611 # "the version on this system".
1612 *-*-darwin*,*-*-darwin*)
1613 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1614 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1615 if test $hostos = $targetos -o $targetos = darwin ; then
1617 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1622 i?86-*-*,x86_64-*-* \
1623 | powerpc*-*-*,powerpc64*-*-*)
1624 CROSS="$CROSS -DNATIVE_CROSS" ;;
1626 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1627 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1628 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1631 # If this is a cross-compiler that does not
1632 # have its own set of headers then define
1635 # If this is using newlib, without having the headers available now,
1636 # then define inhibit_libc in LIBGCC2_CFLAGS.
1637 # This prevents libgcc2 from containing any code which requires libc
1640 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1641 test x$with_newlib = xyes ; } &&
1642 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1643 inhibit_libc=-Dinhibit_libc
1645 AC_SUBST(inhibit_libc)
1647 # When building gcc with a cross-compiler, we need to adjust things so
1648 # that the generator programs are still built with the native compiler.
1649 # Also, we cannot run fixincludes or fix-header.
1651 # These are the normal (build=host) settings:
1652 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1653 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1654 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1655 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1657 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1659 # Possibly disable fixproto, on a per-target basis.
1660 case ${use_fixproto} in
1665 STMP_FIXPROTO=stmp-fixproto
1668 AC_SUBST(STMP_FIXPROTO)
1670 # And these apply if build != host, or we are generating coverage data
1671 if test x$build != x$host || test "x$coverage_flags" != x
1674 BUILD_PREFIX_1=build-
1675 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1677 if test "x$TARGET_SYSTEM_ROOT" = x; then
1683 # Expand extra_headers to include complete path.
1684 # This substitutes for lots of t-* files.
1686 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1687 for file in ${extra_headers} ; do
1688 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1691 # Define collect2 in Makefile.
1692 case $host_can_use_collect2 in
1694 *) collect2='collect2$(exeext)' ;;
1696 AC_SUBST([collect2])
1698 # Add a definition of USE_COLLECT2 if system wants one.
1699 case $use_collect2 in
1700 no) use_collect2= ;;
1703 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1704 xm_defines="${xm_defines} USE_COLLECT2"
1705 case $host_can_use_collect2 in
1707 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1713 # ---------------------------
1714 # Assembler & linker features
1715 # ---------------------------
1717 # Identify the assembler which will work hand-in-glove with the newly
1718 # built GCC, so that we can examine its features. This is the assembler
1719 # which will be driven by the driver program.
1721 # If build != host, and we aren't building gas in-tree, we identify a
1722 # build->target assembler and hope that it will have the same features
1723 # as the host->target assembler we'll be using.
1724 AC_MSG_CHECKING(what assembler to use)
1727 gcc_cv_gas_major_version=
1728 gcc_cv_gas_minor_version=
1729 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1730 if test -x "$DEFAULT_ASSEMBLER"; then
1731 gcc_cv_as="$DEFAULT_ASSEMBLER"
1732 elif test -x as$host_exeext; then
1733 # Build using assembler in the current directory.
1734 gcc_cv_as=./as$host_exeext
1735 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1736 && test -f ../gas/Makefile \
1737 && test x$build = x$host; then
1738 # Single tree build which includes gas. We want to prefer it
1739 # over whatever linker top-level may have detected, since
1740 # we'll use what we're building after installation anyway.
1742 _gcc_COMPUTE_GAS_VERSION
1743 rm -f as$host_exeext
1744 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1745 in_tree_gas_is_elf=no
1746 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1747 || (grep 'obj_format = multi' ../gas/Makefile \
1748 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1750 in_tree_gas_is_elf=yes
1752 m4_pattern_allow([AS_FOR_TARGET])dnl
1753 elif test -x "$AS_FOR_TARGET"; then
1754 gcc_cv_as="$AS_FOR_TARGET"
1755 elif test -x "$AS" && test x$host = x$target; then
1759 if test "x$gcc_cv_as" = x; then
1760 # Search the same directories that the installed compiler will
1761 # search. Else we may find the wrong assembler and lose. If we
1762 # do not find a suitable assembler binary, then try the user's
1765 # Also note we have to check MD_EXEC_PREFIX before checking the
1766 # user's path. Unfortunately, there is no good way to get at the
1767 # value of MD_EXEC_PREFIX here. So we do a brute force search
1768 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1769 # to be fixed as part of the make/configure rewrite too.
1771 if test "x$exec_prefix" = xNONE; then
1772 if test "x$prefix" = xNONE; then
1773 test_prefix=/usr/local
1778 test_prefix=$exec_prefix
1781 # If the loop below does not find an assembler, then use whatever
1782 # one we can find in the users's path.
1784 if test "x$program_prefix" != xNONE; then
1785 gcc_cv_as=${program_prefix}as$host_exeext
1787 gcc_cv_as=`echo as | sed "${program_transform_name}"`$host_exeext
1790 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1791 $test_prefix/libexec/gcc/$target_noncanonical \
1792 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1793 /usr/lib/gcc/$target_noncanonical \
1794 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1795 $test_prefix/$target_noncanonical/bin"
1797 if test x$host = x$target; then
1798 test_dirs="$test_dirs \
1803 /bsd43/usr/lib/cmplrs/cc \
1804 /usr/cross64/usr/bin \
1805 /usr/lib/cmplrs/cc \
1806 /sysv/usr/lib/cmplrs/cc \
1807 /svr4/usr/lib/cmplrs/cc \
1811 for dir in $test_dirs; do
1812 if test -x $dir/as$host_exeext; then
1813 gcc_cv_as=$dir/as$host_exeext
1818 case $in_tree_gas in
1820 AC_MSG_RESULT("newly built gas")
1823 AC_MSG_RESULT($gcc_cv_as)
1827 # Identify the linker which will work hand-in-glove with the newly
1828 # built GCC, so that we can examine its features. This is the linker
1829 # which will be driven by the driver program.
1831 # If build != host, and we aren't building gas in-tree, we identify a
1832 # build->target linker and hope that it will have the same features
1833 # as the host->target linker we'll be using.
1834 AC_MSG_CHECKING(what linker to use)
1837 gcc_cv_gld_major_version=
1838 gcc_cv_gld_minor_version=
1839 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1840 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1841 if test -x "$DEFAULT_LINKER"; then
1842 gcc_cv_ld="$DEFAULT_LINKER"
1843 elif test -x collect-ld$host_exeext; then
1844 # Build using linker in the current directory.
1845 gcc_cv_ld=./collect-ld$host_exeext
1846 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1847 && test -f ../ld/Makefile \
1848 && test x$build = x$host; then
1849 # Single tree build which includes ld. We want to prefer it
1850 # over whatever linker top-level may have detected, since
1851 # we'll use what we're building after installation anyway.
1853 in_tree_ld_is_elf=no
1854 if (grep 'EMUL = .*elf' ../ld/Makefile \
1855 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1856 in_tree_ld_is_elf=yes
1858 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
1861 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1863 if test x$gcc_cv_gld_version != x; then
1868 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1869 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1871 rm -f collect-ld$host_exeext
1872 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1874 elif test -x "$LD_FOR_TARGET"; then
1875 gcc_cv_ld="$LD_FOR_TARGET"
1876 elif test -x "$LD" && test x$host = x$target; then
1880 if test "x$gcc_cv_ld" = x; then
1881 # Search the same directories that the installed compiler will
1882 # search. Else we may find the wrong linker and lose. If we
1883 # do not find a suitable linker binary, then try the user's
1886 # Also note we have to check MD_EXEC_PREFIX before checking the
1887 # user's path. Unfortunately, there is no good way to get at the
1888 # value of MD_EXEC_PREFIX here. So we do a brute force search
1889 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1890 # to be fixed as part of the make/configure rewrite too.
1892 if test "x$exec_prefix" = xNONE; then
1893 if test "x$prefix" = xNONE; then
1894 test_prefix=/usr/local
1899 test_prefix=$exec_prefix
1902 # If the loop below does not find an linker, then use whatever
1903 # one we can find in the users's path.
1905 if test "x$program_prefix" != xNONE; then
1906 gcc_cv_ld=${program_prefix}ld$host_exeext
1908 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$host_exeext
1911 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1912 $test_prefix/libexec/gcc/$target_noncanonical \
1913 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1914 /usr/lib/gcc/$target_noncanonical \
1915 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1916 $test_prefix/$target_noncanonical/bin"
1918 if test x$host = x$target; then
1919 test_dirs="$test_dirs \
1924 /bsd43/usr/lib/cmplrs/cc \
1925 /usr/cross64/usr/bin \
1926 /usr/lib/cmplrs/cc \
1927 /sysv/usr/lib/cmplrs/cc \
1928 /svr4/usr/lib/cmplrs/cc \
1932 for dir in $test_dirs; do
1933 if test -x $dir/ld$host_exeext; then
1934 gcc_cv_ld=$dir/ld$host_exeext
1941 AC_MSG_RESULT("newly built ld")
1944 AC_MSG_RESULT($gcc_cv_ld)
1948 # Figure out what nm we will be using.
1949 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1950 AC_MSG_CHECKING(what nm to use)
1952 if test -x nm$host_exeext; then
1953 gcc_cv_nm=./nm$host_exeext
1954 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1955 && test -f ../binutils/Makefile; then
1956 # Single tree build which includes binutils.
1958 gcc_cv_nm=./nm$host_exeext
1959 rm -f nm$host_exeext
1960 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1961 elif test "x$program_prefix" != xNONE; then
1962 gcc_cv_nm=${program_prefix}nm$host_exeext
1964 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$host_exeext
1967 yes) AC_MSG_RESULT("newly built nm") ;;
1968 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1971 # Figure out what objdump we will be using.
1972 AC_MSG_CHECKING(what objdump to use)
1974 if test -x objdump$host_exeext; then
1975 gcc_cv_objdump=./objdump$host_exeext
1976 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1977 && test -f ../binutils/Makefile; then
1978 # Single tree build which includes binutils.
1980 gcc_cv_objdump=./objdump$host_exeext
1981 rm -f objdump$host_exeext
1982 $symbolic_link ../binutils/objdump$host_exeext \
1983 objdump$host_exeext 2>/dev/null
1984 elif test "x$program_prefix" != xNONE; then
1985 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1987 gcc_cv_objdump=`echo objdump | \
1988 sed "${program_transform_name}"`$host_exeext
1990 case $in_tree_objdump in
1991 yes) AC_MSG_RESULT("newly built objdump") ;;
1992 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1995 # Figure out what assembler alignment features are present.
1996 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
2000 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
2001 [Define if your assembler supports .balign and .p2align.])])
2003 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
2006 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
2007 [Define if your assembler supports specifying the maximum number
2008 of bytes to skip when using the GAS .p2align command.])])
2010 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
2012 [conftest_label1: .word 0
2014 conftest_label2: .word 0
2016 [if test x$gcc_cv_nm != x; then
2017 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
2018 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
2019 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
2021 else gcc_cv_as_subsection_m1=yes
2023 rm -f conftest.nm1 conftest.nm2
2025 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2026 [Define if your assembler supports .subsection and .subsection -1 starts
2027 emitting at the beginning of your section.])])
2029 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2032 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2034 # .hidden needs to be supported in both the assembler and the linker,
2035 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2036 # This is irritatingly difficult to feature test for; we have to check the
2037 # date string after the version number. If we've got an in-tree
2038 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2040 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2041 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2046 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2047 [if test $in_tree_ld = yes ; then
2049 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2050 && test $in_tree_ld_is_elf = yes; then
2051 gcc_cv_ld_hidden=yes
2054 gcc_cv_ld_hidden=yes
2055 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2056 if echo "$ld_ver" | grep GNU > /dev/null; then
2058 ld_vers=`echo $ld_ver | sed -n \
2059 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2060 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2061 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2062 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2063 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2064 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2065 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2066 if test 0"$ld_date" -lt 20020404; then
2067 if test -n "$ld_date"; then
2068 # If there was date string, but was earlier than 2002-04-04, fail
2070 elif test -z "$ld_vers"; then
2071 # If there was no date string nor ld version number, something is wrong
2074 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2075 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2076 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2077 test -z "$ld_vers_patch" && ld_vers_patch=0
2078 if test "$ld_vers_major" -lt 2; then
2080 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2081 gcc_cv_ld_hidden="no"
2082 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2090 hppa64*-*-hpux* | ia64*-*-hpux*)
2091 gcc_cv_ld_hidden=yes
2099 libgcc_visibility=no
2100 AC_SUBST(libgcc_visibility)
2101 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2102 libgcc_visibility=yes
2103 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2104 [Define if your assembler and linker support .hidden.])
2107 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2108 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2116 [# GAS versions before 2.11 do not support uleb128,
2117 # despite appearing to.
2118 # ??? There exists an elf-specific test that will crash
2119 # the assembler. Perhaps it's better to figure out whether
2120 # arbitrary sections are supported and try the test.
2121 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2122 if echo "$as_ver" | grep GNU > /dev/null; then
2124 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2125 as_major=`echo $as_ver | sed 's/\..*//'`
2126 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2128 if test $as_major -eq 2 && test $as_minor -lt 11
2130 else gcc_cv_as_leb128=yes
2133 [AC_DEFINE(HAVE_AS_LEB128, 1,
2134 [Define if your assembler supports .sleb128 and .uleb128.])])
2136 # GAS versions up to and including 2.11.0 may mis-optimize
2138 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2146 .section .eh_frame,"aw",@progbits
2148 .4byte .LECIE1-.LSCIE1
2162 .4byte .LEFDE1-.LASFDE1
2164 .4byte .LASFDE1-__FRAME_BEGIN__
2172 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2173 cat > conftest.lit <<EOF
2174 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2175 0010 01000000 12000000 18000000 00000000 ................
2176 0020 08000000 04080000 0044 .........D @&t@
2178 cat > conftest.big <<EOF
2179 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2180 0010 00000001 00000012 00000018 00000000 ................
2181 0020 00000008 04000000 0844 .........D @&t@
2183 # If the assembler didn't choke, and we can objdump,
2184 # and we got the correct data, then succeed.
2185 if test x$gcc_cv_objdump != x \
2186 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2187 | tail -3 > conftest.got \
2188 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2189 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2191 gcc_cv_as_eh_frame=yes
2192 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2193 gcc_cv_as_eh_frame=buggy
2195 # Uh oh, what do we do now?
2196 gcc_cv_as_eh_frame=no
2199 if test $gcc_cv_as_eh_frame = buggy; then
2200 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2201 [Define if your assembler mis-optimizes .eh_frame data.])
2204 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2205 [elf,2,12,0], [--fatal-warnings],
2206 [.section .rodata.str, "aMS", @progbits, 1])
2207 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2208 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2209 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2211 # Thread-local storage - the check is heavily parametrized.
2220 .section ".tdata","awT",@progbits
2223 ldq $27,__tls_get_addr($29) !literal!1
2224 lda $16,foo($29) !tlsgd!1
2225 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2226 ldq $27,__tls_get_addr($29) !literal!2
2227 lda $16,foo($29) !tlsldm!2
2228 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2229 ldq $1,foo($29) !gotdtprel
2230 ldah $2,foo($29) !dtprelhi
2231 lda $3,foo($2) !dtprello
2232 lda $4,foo($29) !dtprel
2233 ldq $1,foo($29) !gottprel
2234 ldah $2,foo($29) !tprelhi
2235 lda $3,foo($2) !tprello
2236 lda $4,foo($29) !tprel'
2239 tls_as_opt=--fatal-warnings
2243 .section ".tdata","awT",@progbits
2247 leal foo@TLSGD(,%ebx,1), %eax
2248 leal foo@TLSLDM(%ebx), %eax
2249 leal foo@DTPOFF(%eax), %edx
2250 movl foo@GOTTPOFF(%ebx), %eax
2251 subl foo@GOTTPOFF(%ebx), %eax
2252 addl foo@GOTNTPOFF(%ebx), %eax
2253 movl foo@INDNTPOFF, %eax
2254 movl $foo@TPOFF, %eax
2255 subl $foo@TPOFF, %eax
2256 leal foo@NTPOFF(%ecx), %eax'
2259 tls_as_opt=--fatal-warnings
2263 .section ".tdata","awT",@progbits
2267 leaq foo@TLSGD(%rip), %rdi
2268 leaq foo@TLSLD(%rip), %rdi
2269 leaq foo@DTPOFF(%rax), %rdx
2270 movq foo@GOTTPOFF(%rip), %rax
2271 movq $foo@TPOFF, %rax'
2274 tls_as_opt=--fatal-warnings
2278 .section ".tdata","awT",@progbits
2281 addl r16 = @ltoff(@dtpmod(foo#)), gp
2282 addl r17 = @ltoff(@dtprel(foo#)), gp
2283 addl r18 = @ltoff(@tprel(foo#)), gp
2284 addl r19 = @dtprel(foo#), gp
2285 adds r21 = @dtprel(foo#), r13
2286 movl r23 = @dtprel(foo#)
2287 addl r20 = @tprel(foo#), gp
2288 adds r22 = @tprel(foo#), r13
2289 movl r24 = @tprel(foo#)'
2292 tls_as_opt=--fatal-warnings
2296 .section ".tdata","awT",@progbits
2304 addi 3,31,ld0@got@tlsgd
2306 addi 3,31,x1@got@tlsld
2309 addis 9,3,x2@dtprel@ha
2310 addi 9,9,x2@dtprel@l
2311 lwz 9,x3@got@tprel(31)
2314 addis 9,2,x2@tprel@ha
2315 addi 9,9,x2@tprel@l'
2318 tls_as_opt="-a32 --fatal-warnings"
2322 .section ".tdata","awT",@progbits
2330 addi 3,2,ld0@got@tlsgd
2336 addi 3,2,x1@got@tlsld
2342 addis 9,3,x2@dtprel@ha
2343 addi 9,9,x2@dtprel@l
2346 ld 9,x3@got@dtprel(2)
2352 tls_as_opt="-a64 --fatal-warnings"
2356 .section ".tdata","awT",@progbits
2365 l %r1,foo@GOTNTPOFF(%r12)
2366 l %r1,0(%r1):tls_load:foo
2367 bas %r14,0(%r1,%r13):tls_gdcall:foo
2368 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2371 tls_as_opt="-m31 --fatal-warnings"
2375 .section ".tdata","awT",@progbits
2383 lg %r1,foo@GOTNTPOFF(%r12)
2384 larl %r1,foo@INDNTPOFF
2385 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2386 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2389 tls_as_opt="-m64 -Aesame --fatal-warnings"
2391 sh-*-* | sh[34]-*-*)
2393 .section ".tdata","awT",@progbits
2403 tls_as_opt=--fatal-warnings
2407 sparc*-sun-solaris2.*)
2414 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2416 .section ".tdata",#alloc,#write,#tls
2419 sethi %tgd_hi22(foo), %o0
2420 add %o0, %tgd_lo10(foo), %o1
2421 add %l7, %o1, %o0, %tgd_add(foo)
2422 call __tls_get_addr, %tgd_call(foo)
2423 sethi %tldm_hi22(foo), %l1
2424 add %l1, %tldm_lo10(foo), %l2
2425 add %l7, %l2, %o0, %tldm_add(foo)
2426 call __tls_get_addr, %tldm_call(foo)
2427 sethi %tldo_hix22(foo), %l3
2428 xor %l3, %tldo_lox10(foo), %l4
2429 add %o0, %l4, %l5, %tldo_add(foo)
2430 sethi %tie_hi22(foo), %o3
2431 add %o3, %tie_lo10(foo), %o3
2432 ld [%l7 + %o3], %o2, %tie_ld(foo)
2433 add %g7, %o2, %o4, %tie_add(foo)
2434 sethi %tle_hix22(foo), %l1
2435 xor %l1, %tle_lox10(foo), %o5
2436 ld [%g7 + %o5], %o1'
2441 .section ".tdata","awT",@progbits
2444 sethi %tgd_hi22(foo), %o0
2445 add %o0, %tgd_lo10(foo), %o1
2446 add %l7, %o1, %o0, %tgd_add(foo)
2447 call __tls_get_addr, %tgd_call(foo)
2448 sethi %tldm_hi22(foo), %l1
2449 add %l1, %tldm_lo10(foo), %l2
2450 add %l7, %l2, %o0, %tldm_add(foo)
2451 call __tls_get_addr, %tldm_call(foo)
2452 sethi %tldo_hix22(foo), %l3
2453 xor %l3, %tldo_lox10(foo), %l4
2454 add %o0, %l4, %l5, %tldo_add(foo)
2455 sethi %tie_hi22(foo), %o3
2456 add %o3, %tie_lo10(foo), %o3
2457 ld [%l7 + %o3], %o2, %tie_ld(foo)
2458 add %g7, %o2, %o4, %tie_add(foo)
2459 sethi %tle_hix22(foo), %l1
2460 xor %l1, %tle_lox10(foo), %o5
2461 ld [%g7 + %o5], %o1'
2464 tls_as_opt="-32 --fatal-warnings"
2469 if test -z "$tls_first_major"; then
2470 : # If we don't have a check, assume no support.
2472 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2473 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2474 [AC_DEFINE(HAVE_AS_TLS, 1,
2475 [Define if your assembler supports thread-local storage.])])
2478 # Target-specific assembler checks.
2480 if test x"$demangler_in_ld" = xyes; then
2481 AC_MSG_CHECKING(linker --demangle support)
2482 gcc_cv_ld_demangle=no
2483 if test $in_tree_ld = yes; then
2484 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2485 gcc_cv_ld_demangle=yes
2487 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2488 # Check if the GNU linker supports --demangle option
2489 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2490 gcc_cv_ld_demangle=yes
2493 if test x"$gcc_cv_ld_demangle" = xyes; then
2494 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2495 [Define if your linker supports --demangle option.])
2497 AC_MSG_RESULT($gcc_cv_ld_demangle)
2501 # All TARGET_ABI_OSF targets.
2502 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2503 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2504 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2507 extbl $3, $2, $3 !lituse_bytoff!1
2508 ldq $2, a($29) !literal!1
2509 ldq $4, b($29) !literal!2
2510 ldq_u $3, 0($2) !lituse_base!1
2511 ldq $27, f($29) !literal!5
2512 jsr $26, ($27), f !lituse_jsr!5
2513 ldah $29, 0($26) !gpdisp!3
2514 lda $0, c($29) !gprel
2515 ldah $1, d($29) !gprelhigh
2516 lda $1, d($1) !gprellow
2517 lda $29, 0($29) !gpdisp!3],,
2518 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2519 [Define if your assembler supports explicit relocations.])])
2523 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2524 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2525 [-no-mul-bug-abort], [.text],,
2526 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2527 [Define if your assembler supports the -no-mul-bug-abort option.])])
2531 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2532 [.register %g2, #scratch],,
2533 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2534 [Define if your assembler supports .register.])])
2536 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2538 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2539 [Define if your assembler supports -relax option.])])
2541 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2542 gcc_cv_as_sparc_ua_pcrel,,
2550 .uaword %r_disp32(foo)],
2551 [if test x$gcc_cv_ld != x \
2552 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2553 gcc_cv_as_sparc_ua_pcrel=yes
2556 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2557 [Define if your assembler and linker support unaligned PC relative relocs.])
2559 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2560 gcc_cv_as_sparc_ua_pcrel_hidden,,
2565 .uaword %r_disp32(foo)
2566 .byte 0x32, 0x33, 0x34
2571 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2572 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2573 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2574 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2575 if $gcc_cv_objdump -R conftest 2> /dev/null \
2576 | grep 'DISP32' > /dev/null 2>&1; then
2579 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2583 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2584 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2585 ]) # unaligned pcrel relocs
2587 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2588 gcc_cv_as_sparc_offsetable_lo10,,
2591 or %g1, %lo(ab) + 12, %g1
2592 or %g1, %lo(ab + 12), %g1],
2593 [if test x$gcc_cv_objdump != x \
2594 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2595 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2596 gcc_cv_as_offsetable_lo10=yes
2598 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2599 [Define if your assembler supports offsetable %lo().])])
2603 i[34567]86-*-* | x86_64-*-*)
2606 cygwin* | pe | mingw32*)
2607 # Used for DWARF 2 in PE
2608 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2609 gcc_cv_as_ix86_pe_secrel32,
2615 [if test x$gcc_cv_ld != x \
2616 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2617 gcc_cv_as_ix86_pe_secrel32=yes
2620 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2621 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2625 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2626 gcc_cv_as_ix86_filds_fists,
2627 [2,9,0],, [filds mem; fists mem],,
2628 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2629 [Define if your assembler uses the new HImode fild and fist notation.])])
2631 gcc_GAS_CHECK_FEATURE([cmov syntax],
2632 gcc_cv_as_ix86_cmov_sun_syntax,,,
2633 [cmovl.l %edx, %eax],,
2634 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2635 [Define if your assembler supports the Sun syntax for cmov.])])
2637 # This one is used unconditionally by i386.[ch]; it is to be defined
2638 # to 1 if the feature is present, 0 otherwise.
2639 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2640 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2646 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2647 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2648 [Define true if the assembler supports '.long foo@GOTOFF'.])
2652 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2653 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2655 addl r15 = @ltoffx(x#), gp
2657 ld8.mov r16 = [[r15]], x#],,
2658 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2659 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2665 *-*-aix*) conftest_s=' .csect .text[[PR]]
2667 *-*-darwin*) conftest_s=' .text
2669 *) conftest_s=' .text
2673 gcc_GAS_CHECK_FEATURE([mfcr field support],
2674 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2676 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2677 [Define if your assembler supports mfcr field.])])
2681 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2682 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2683 [ lw $4,%gp_rel(foo)($4)],,
2684 [if test x$target_cpu_default = x
2685 then target_cpu_default=MASK_EXPLICIT_RELOCS
2686 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2691 # ??? Not all targets support dwarf2 debug_line, even within a version
2692 # of gas. Moreover, we need to emit a valid instruction to trigger any
2693 # info to the output file. So, as supported targets are added to gas 2.11,
2694 # add some instruction here to (also) show we expect this might work.
2695 # ??? Once 2.11 is released, probably need to add first known working
2696 # version to the per-target configury.
2698 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2699 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2700 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2703 ia64*-*-* | s390*-*-*)
2710 if test x"$insn" != x; then
2712 .file 1 \"conftest.s\"
2715 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2716 gcc_cv_as_dwarf2_debug_line,
2717 [elf,2,11,0],, [$conftest_s],
2718 [# ??? This fails with non-gnu grep. Maybe use objdump?
2719 if grep debug_line conftest.o > /dev/null 2>&1; then
2720 gcc_cv_as_dwarf2_debug_line=yes
2723 # The .debug_line file table must be in the exact order that
2724 # we specified the files, since these indices are also used
2725 # by DW_AT_decl_file. Approximate this test by testing if
2726 # the assembler bitches if the same index is assigned twice.
2727 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2728 gcc_cv_as_dwarf2_file_buggy,,,
2732 if test $gcc_cv_as_dwarf2_debug_line = yes \
2733 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2734 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2735 [Define if your assembler supports dwarf2 .file/.loc directives,
2736 and preserves file table indices exactly as given.])
2739 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2740 gcc_cv_as_gdwarf2_flag,
2741 [elf,2,11,0], [--gdwarf2], [$insn],,
2742 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2743 [Define if your assembler supports the --gdwarf2 option.])])
2745 gcc_GAS_CHECK_FEATURE([--gstabs option],
2746 gcc_cv_as_gstabs_flag,
2747 [elf,2,11,0], [--gstabs], [$insn],
2748 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2749 # and warns about it, but still exits successfully. So check for
2751 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2753 else gcc_cv_as_gstabs_flag=yes
2755 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2756 [Define if your assembler supports the --gstabs option.])])
2759 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2760 gcc_cv_ld_ro_rw_mix=unknown
2761 if test $in_tree_ld = yes ; then
2762 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2763 && test $in_tree_ld_is_elf = yes; then
2764 gcc_cv_ld_ro_rw_mix=read-write
2766 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2767 echo '.section myfoosect, "a"' > conftest1.s
2768 echo '.section myfoosect, "aw"' > conftest2.s
2769 echo '.byte 1' >> conftest2.s
2770 echo '.section myfoosect, "a"' > conftest3.s
2771 echo '.byte 0' >> conftest3.s
2772 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2773 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2774 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2775 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2776 conftest2.o conftest3.o > /dev/null 2>&1; then
2777 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2778 | sed -e '/myfoosect/!d' -e N`
2779 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2780 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2781 gcc_cv_ld_ro_rw_mix=read-only
2783 gcc_cv_ld_ro_rw_mix=read-write
2788 rm -f conftest.* conftest[123].*
2791 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2792 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2793 [Define if your linker links a mix of read-only
2794 and read-write sections into a read-write section.])
2796 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2798 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2799 gcc_cv_ld_eh_frame_hdr=no
2800 if test $in_tree_ld = yes ; then
2801 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2802 && test $in_tree_ld_is_elf = yes; then
2803 gcc_cv_ld_eh_frame_hdr=yes
2805 elif test x$gcc_cv_ld != x; then
2806 # Check if linker supports --eh-frame-hdr option
2807 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2808 gcc_cv_ld_eh_frame_hdr=yes
2811 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2812 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2813 [Define if your linker supports --eh-frame-hdr option.])
2815 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2817 AC_MSG_CHECKING(linker position independent executable support)
2819 if test $in_tree_ld = yes ; then
2820 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2821 && test $in_tree_ld_is_elf = yes; then
2824 elif test x$gcc_cv_ld != x; then
2825 # Check if linker supports -pie option
2826 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2830 if test x"$gcc_cv_ld_pie" = xyes; then
2831 AC_DEFINE(HAVE_LD_PIE, 1,
2832 [Define if your linker supports -pie option.])
2834 AC_MSG_RESULT($gcc_cv_ld_pie)
2840 AC_CACHE_CHECK(linker --as-needed support,
2841 gcc_cv_ld_as_needed,
2842 [gcc_cv_ld_as_needed=no
2843 if test $in_tree_ld = yes ; then
2844 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2845 && test $in_tree_ld_is_elf = yes; then
2846 gcc_cv_ld_as_needed=yes
2848 elif test x$gcc_cv_ld != x; then
2849 # Check if linker supports --as-needed and --no-as-needed options
2850 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2851 gcc_cv_ld_as_needed=yes
2855 if test x"$gcc_cv_ld_as_needed" = xyes; then
2856 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2857 [Define if your linker supports --as-needed and --no-as-needed options.])
2860 if test x$with_sysroot = x && test x$host = x$target \
2861 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2862 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2863 [Define to PREFIX/include if cpp should also search that directory.])
2866 # Find out what GC implementation we want, or may, use.
2868 [ --with-gc={page,zone} choose the garbage collection mechanism to use
2875 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2880 echo "Using $GGC for garbage collection."
2882 # Use the system's zlib library.
2884 zlibinc="-I\$(srcdir)/../zlib"
2885 AC_ARG_WITH(system-zlib,
2886 [ --with-system-zlib use installed libz],
2893 dnl Very limited version of automake's enable-maintainer-mode
2895 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2896 dnl maintainer-mode is disabled by default
2897 AC_ARG_ENABLE(maintainer-mode,
2898 [ --enable-maintainer-mode
2899 enable make rules and dependencies not useful
2900 (and sometimes confusing) to the casual installer],
2901 maintainer_mode=$enableval,
2904 AC_MSG_RESULT($maintainer_mode)
2906 if test "$maintainer_mode" = "yes"; then
2913 AC_MSG_CHECKING([whether to use libbanshee for points-to alias analysis])
2914 AC_ARG_WITH(libbanshee,
2915 [ --with-libbanshee enable libbanshee],
2916 libbanshee="$with_libbanshee",
2919 if test x"$libbanshee" = xyes; then
2920 BANSHEELIB="../libbanshee/points-to/libandersen.a ../libbanshee/engine/libbansheeengine.a ../libbanshee/libcompat/libbansheecompat.a "
2921 BANSHEEINC="-I\$(srcdir)/../libbanshee/libcompat -I\$(srcdir)/../libbanshee -I\$(srcdir)/../libbanshee/points-to"
2922 ANDER="tree-alias-ander.o"
2923 AC_DEFINE(HAVE_BANSHEE, 1, [Define if BANSHEE is available])
2929 AC_MSG_RESULT($with_libbanshee)
2932 AC_SUBST(BANSHEEINC)
2933 AC_SUBST(BANSHEELIB)
2939 # Make empty files to contain the specs and options for each language.
2940 # Then add #include lines to for a compiler that has specs and/or options.
2945 for subdir in . $subdirs
2947 if test -f $srcdir/$subdir/lang.opt; then
2948 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2950 if test -f $srcdir/$subdir/lang-specs.h; then
2951 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2953 if test -f $srcdir/$subdir/$subdir-tree.def; then
2954 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2958 # These (without "all_") are set in each config-lang.in.
2959 # `language' must be a single word so is spelled singularly.
2964 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders libada-mk'
2965 # List of language makefile fragments.
2967 # List of language subdirectory makefiles. Deprecated.
2969 # Files for gengtype
2970 all_gtfiles="$target_gtfiles"
2971 # Files for gengtype with language
2972 all_gtfiles_files_langs=
2973 all_gtfiles_files_files=
2975 # Add the language fragments.
2976 # Languages are added via two mechanisms. Some information must be
2977 # recorded in makefile variables, these are defined in config-lang.in.
2978 # We accumulate them and plug them into the main Makefile.
2979 # The other mechanism is a set of hooks for each of the main targets
2980 # like `clean', `install', etc.
2982 language_hooks="Make-hooks"
2992 . ${srcdir}/$s/config-lang.in
2993 if test "x$language" = x
2995 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2998 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2999 if test -f ${srcdir}/$s/Makefile.in
3000 then all_lang_makefiles="$s/Makefile"
3002 all_languages="$all_languages $language"
3003 if test "x$boot_language" = xyes
3005 all_boot_languages="$all_boot_languages $language"
3007 all_compilers="$all_compilers $compilers"
3008 all_stagestuff="$all_stagestuff $stagestuff"
3009 all_outputs="$all_outputs $outputs"
3010 all_gtfiles="$all_gtfiles $gtfiles"
3013 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3014 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3018 # Pick up gtfiles for c
3021 . ${srcdir}/c-config-lang.in
3022 all_gtfiles="$all_gtfiles $gtfiles"
3025 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3026 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3030 for language in $all_languages
3032 check_languages="$check_languages check-$language"
3035 # We link each language in with a set of hooks, reached indirectly via
3040 target_list="all.build all.cross start.encap rest.encap tags \
3041 install-normal install-common install-man \
3042 uninstall info man srcextra srcman srcinfo \
3043 mostlyclean clean distclean maintainer-clean \
3044 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3045 for t in $target_list
3048 for lang in $all_languages
3052 echo "lang.$t: $x" >> Make-hooks
3061 echo "dir ." > .gdbinit
3062 echo "dir ${srcdir}" >> .gdbinit
3063 if test x$gdb_needs_out_file_path = xyes
3065 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3067 if test "x$subdirs" != x; then
3070 echo "dir ${srcdir}/$s" >> .gdbinit
3073 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3075 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3076 # absolute path for gcc_tooldir based on inserting the number of up-directory
3077 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3078 # $(libsubdir)/@(unlibsubdir) based path.
3079 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3080 # make and thus we'd get different behavior depending on where we built the
3082 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3083 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3085 changequote(<<, >>)dnl
3086 # An explanation of the sed strings:
3087 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3088 # -e 's|/$||' match a trailing forward slash and eliminates it
3089 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3090 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3092 # (*) Note this pattern overwrites the first character of the string
3093 # with a forward slash if one is not already present. This is not a
3094 # problem because the exact names of the sub-directories concerned is
3095 # unimportant, just the number of them matters.
3097 # The practical upshot of these patterns is like this:
3099 # prefix exec_prefix result
3100 # ------ ----------- ------
3102 # /foo/ /foo/bar ../
3103 # /foo /foo/bar/ ../
3104 # /foo/ /foo/bar/ ../
3105 # /foo /foo/bar/ugg ../../
3108 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3109 changequote([, ])dnl
3111 AC_SUBST(gcc_tooldir)
3114 # Find a directory in which to install a shared libgcc.
3116 AC_ARG_ENABLE(version-specific-runtime-libs,
3117 [ --enable-version-specific-runtime-libs
3118 specify that runtime libraries should be
3119 installed in a compiler-specific directory])
3121 AC_ARG_WITH(slibdir,
3122 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3123 slibdir="$with_slibdir",
3124 if test "${enable_version_specific_runtime_libs+set}" = set; then
3125 slibdir='$(libsubdir)'
3126 elif test "$host" != "$target"; then
3127 slibdir='$(build_tooldir)/lib'
3133 objdir=`${PWDCMD-pwd}`
3136 # Substitute configuration variables
3139 AC_SUBST(all_boot_languages)
3140 AC_SUBST(all_compilers)
3141 AC_SUBST(all_gtfiles)
3142 AC_SUBST(all_gtfiles_files_langs)
3143 AC_SUBST(all_gtfiles_files_files)
3144 AC_SUBST(all_lang_makefrags)
3145 AC_SUBST(all_lang_makefiles)
3146 AC_SUBST(all_languages)
3147 AC_SUBST(all_stagestuff)
3148 AC_SUBST(build_exeext)
3149 AC_SUBST(build_install_headers_dir)
3150 AC_SUBST(build_xm_file_list)
3151 AC_SUBST(build_xm_include_list)
3152 AC_SUBST(build_xm_defines)
3153 AC_SUBST(check_languages)
3154 AC_SUBST(cc_set_by_configure)
3155 AC_SUBST(quoted_cc_set_by_configure)
3156 AC_SUBST(cpp_install_dir)
3157 AC_SUBST(xmake_file)
3158 AC_SUBST(tmake_file)
3159 AC_SUBST(extra_gcc_objs)
3160 AC_SUBST(extra_headers_list)
3161 AC_SUBST(extra_objs)
3162 AC_SUBST(extra_parts)
3163 AC_SUBST(extra_passes)
3164 AC_SUBST(extra_programs)
3165 AC_SUBST(float_h_file)
3166 AC_SUBST(gcc_config_arguments)
3167 AC_SUBST(gcc_gxx_include_dir)
3168 AC_SUBST(libstdcxx_incdir)
3169 AC_SUBST(gcc_version)
3170 AC_SUBST(gcc_version_full)
3171 AC_SUBST(gcc_version_trigger)
3172 AC_SUBST(host_exeext)
3173 AC_SUBST(host_xm_file_list)
3174 AC_SUBST(host_xm_include_list)
3175 AC_SUBST(host_xm_defines)
3176 AC_SUBST(out_host_hook_obj)
3178 AC_SUBST(lang_opt_files)
3179 AC_SUBST(lang_specs_files)
3180 AC_SUBST(lang_tree_files)
3181 AC_SUBST(local_prefix)
3183 AC_SUBST(objc_boehm_gc)
3185 AC_SUBST(out_object_file)
3186 AC_SUBST(stage_prefix_set_by_configure)
3187 AC_SUBST(quoted_stage_prefix_set_by_configure)
3188 AC_SUBST(symbolic_link)
3189 AC_SUBST(thread_file)
3190 AC_SUBST(tm_file_list)
3191 AC_SUBST(tm_include_list)
3192 AC_SUBST(tm_defines)
3193 AC_SUBST(tm_p_file_list)
3194 AC_SUBST(tm_p_include_list)
3195 AC_SUBST(xm_file_list)
3196 AC_SUBST(xm_include_list)
3197 AC_SUBST(xm_defines)
3198 AC_SUBST(target_noncanonical)
3199 AC_SUBST(c_target_objs)
3200 AC_SUBST(cxx_target_objs)
3201 AC_SUBST(target_cpu_default)
3203 AC_SUBST_FILE(language_hooks)
3205 # If it doesn't already exist, create document directory
3206 echo "checking for the document directory." 1>&2
3207 if test -d doc ; then
3214 if test x${build} = x${host} ; then
3215 if test x${host} = x${target} ; then
3216 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3218 echo "Links are now set up to build a cross-compiler" 1>&2
3219 echo " from ${host} to ${target}." 1>&2
3222 if test x${host} = x${target} ; then
3223 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3224 echo " for ${target}." 1>&2
3226 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3227 echo " from ${host} to ${target}." 1>&2
3231 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3232 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3234 # Configure the subdirectories
3235 # AC_CONFIG_SUBDIRS($subdirs)
3237 # Create the Makefile
3238 # and configure language subdirectories
3239 AC_CONFIG_FILES($all_outputs)
3241 AC_CONFIG_COMMANDS([default],
3243 case ${CONFIG_HEADERS} in
3244 *auto-host.h:config.in*)
3247 # Make sure all the subdirs exist.
3250 test -d $d || mkdir $d
3252 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3253 # bootstrapping and the installation procedure can still use
3254 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3255 # FLAGS_TO_PASS has been modified to solve the problem there.
3256 # This is virtually a duplicate of what happens in configure.lang; we do
3257 # an extra check to make sure this only happens if ln -s can be used.
3258 if test "$symbolic_link" = "ln -s"; then
3259 for d in ${subdirs} fixinc ; do
3260 STARTDIR=`${PWDCMD-pwd}`
3262 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3265 $symbolic_link ../$t $t 2>/dev/null
3272 symbolic_link='$symbolic_link'