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"
1398 ZW_GNU_GETTEXT_SISTER_DIR
1400 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1401 # -liconv on the link line twice.
1402 case "$LIBINTL" in *$LIBICONV*)
1406 # Windows32 Registry support for specifying GCC installation paths.
1407 AC_ARG_ENABLE(win32-registry,
1408 [ --disable-win32-registry
1409 disable lookup of installation paths in the
1410 Registry on Windows hosts
1411 --enable-win32-registry enable registry lookup (default)
1412 --enable-win32-registry=KEY
1413 use KEY instead of GCC version as the last portion
1414 of the registry key],,)
1416 win32 | pe | cygwin* | mingw32* | uwin*)
1417 AC_MSG_CHECKING(whether windows registry support is requested)
1418 if test "x$enable_win32_registry" != xno; then
1419 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1420 [Define to 1 if installation paths should be looked up in Windows32
1421 Registry. Ignored on non windows32 hosts.])
1423 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1428 # Check if user specified a different registry key.
1429 case "x${enable_win32_registry}" in
1432 gcc_cv_win32_registry_key="$VERSION"
1435 # no registry lookup.
1436 gcc_cv_win32_registry_key=''
1439 # user-specified key.
1440 gcc_cv_win32_registry_key="$enable_win32_registry"
1444 if test "x$enable_win32_registry" != xno; then
1445 AC_MSG_CHECKING(registry key on windows hosts)
1446 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1447 [Define to be the last portion of registry key on windows hosts.])
1448 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1453 # Get an absolute path to the GCC top-level source directory
1454 holddir=`${PWDCMD-pwd}`
1456 topdir=`${PWDCMD-pwd}`
1459 # Conditionalize the makefile for this host machine.
1461 for f in ${host_xmake_file}
1463 if test -f ${srcdir}/config/$f
1465 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1469 # Conditionalize the makefile for this target machine.
1471 for f in ${tmake_file}
1473 if test -f ${srcdir}/config/$f
1475 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1478 tmake_file="${tmake_file_}"
1480 symbolic_link='ln -s'
1482 # If the host doesn't support symlinks, modify CC in
1483 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1484 # Otherwise, we can use "CC=$(CC)".
1486 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1488 cc_set_by_configure="\$(CC)"
1489 quoted_cc_set_by_configure="\$(CC)"
1490 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1491 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1494 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1496 symbolic_link="cp -p"
1500 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1501 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1502 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1503 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1507 out_object_file=`basename $out_file .c`.o
1511 for f in $tm_file; do
1514 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1515 tm_include_list="${tm_include_list} $f"
1518 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1519 tm_include_list="${tm_include_list} config/$f"
1526 for f in $tm_p_file; do
1529 tm_p_file_list="${tm_p_file_list} $f"
1530 tm_p_include_list="${tm_p_include_list} $f"
1533 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1534 tm_p_include_list="${tm_p_include_list} config/$f"
1540 for f in $xm_file; do
1543 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1544 xm_include_list="${xm_include_list} $f"
1547 xm_file_list="${xm_file_list} $f"
1548 xm_include_list="${xm_include_list} $f"
1551 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1552 xm_include_list="${xm_include_list} config/$f"
1558 host_xm_include_list=
1559 for f in $host_xm_file; do
1562 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1563 host_xm_include_list="${host_xm_include_list} $f"
1566 host_xm_file_list="${host_xm_file_list} $f"
1567 host_xm_include_list="${host_xm_include_list} $f"
1570 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1571 host_xm_include_list="${host_xm_include_list} config/$f"
1577 for f in $build_xm_file; do
1580 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1581 build_xm_include_list="${build_xm_include_list} $f"
1583 auto-build.h | auto-host.h )
1584 build_xm_file_list="${build_xm_file_list} $f"
1585 build_xm_include_list="${build_xm_include_list} $f"
1588 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1589 build_xm_include_list="${build_xm_include_list} config/$f"
1594 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1595 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1596 CROSS= AC_SUBST(CROSS)
1597 ALL=all.internal AC_SUBST(ALL)
1598 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1599 if test x$host != x$target
1601 CROSS="-DCROSS_COMPILE"
1603 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1604 case "$host","$target" in
1605 # Darwin crosses can use the host system's libraries and headers,
1606 # because of the fat library support. Of course, it must be the
1607 # same version of Darwin on both sides. Allow the user to
1608 # just say --target=foo-darwin without a version number to mean
1609 # "the version on this system".
1610 *-*-darwin*,*-*-darwin*)
1611 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1612 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1613 if test $hostos = $targetos -o $targetos = darwin ; then
1615 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1620 i?86-*-*,x86_64-*-* \
1621 | powerpc*-*-*,powerpc64*-*-*)
1622 CROSS="$CROSS -DNATIVE_CROSS" ;;
1624 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1625 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1626 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1629 # If this is a cross-compiler that does not
1630 # have its own set of headers then define
1633 # If this is using newlib, without having the headers available now,
1634 # then define inhibit_libc in LIBGCC2_CFLAGS.
1635 # This prevents libgcc2 from containing any code which requires libc
1638 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1639 test x$with_newlib = xyes ; } &&
1640 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1641 inhibit_libc=-Dinhibit_libc
1643 AC_SUBST(inhibit_libc)
1645 # When building gcc with a cross-compiler, we need to adjust things so
1646 # that the generator programs are still built with the native compiler.
1647 # Also, we cannot run fixincludes or fix-header.
1649 # These are the normal (build=host) settings:
1650 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1651 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1652 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1653 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1655 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1657 # Possibly disable fixproto, on a per-target basis.
1658 case ${use_fixproto} in
1663 STMP_FIXPROTO=stmp-fixproto
1666 AC_SUBST(STMP_FIXPROTO)
1668 # And these apply if build != host, or we are generating coverage data
1669 if test x$build != x$host || test "x$coverage_flags" != x
1672 BUILD_PREFIX_1=build-
1673 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1675 if test "x$TARGET_SYSTEM_ROOT" = x; then
1681 # Expand extra_headers to include complete path.
1682 # This substitutes for lots of t-* files.
1684 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1685 for file in ${extra_headers} ; do
1686 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1689 # Define collect2 in Makefile.
1690 case $host_can_use_collect2 in
1692 *) collect2='collect2$(exeext)' ;;
1694 AC_SUBST([collect2])
1696 # Add a definition of USE_COLLECT2 if system wants one.
1697 case $use_collect2 in
1698 no) use_collect2= ;;
1701 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1702 xm_defines="${xm_defines} USE_COLLECT2"
1703 case $host_can_use_collect2 in
1705 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1711 # ---------------------------
1712 # Assembler & linker features
1713 # ---------------------------
1715 # Identify the assembler which will work hand-in-glove with the newly
1716 # built GCC, so that we can examine its features. This is the assembler
1717 # which will be driven by the driver program.
1719 # If build != host, and we aren't building gas in-tree, we identify a
1720 # build->target assembler and hope that it will have the same features
1721 # as the host->target assembler we'll be using.
1722 AC_MSG_CHECKING(what assembler to use)
1725 gcc_cv_gas_major_version=
1726 gcc_cv_gas_minor_version=
1727 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1728 if test -x "$DEFAULT_ASSEMBLER"; then
1729 gcc_cv_as="$DEFAULT_ASSEMBLER"
1730 elif test -x as$host_exeext; then
1731 # Build using assembler in the current directory.
1732 gcc_cv_as=./as$host_exeext
1733 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1734 && test -f ../gas/Makefile \
1735 && test x$build = x$host; then
1736 # Single tree build which includes gas. We want to prefer it
1737 # over whatever linker top-level may have detected, since
1738 # we'll use what we're building after installation anyway.
1740 _gcc_COMPUTE_GAS_VERSION
1741 rm -f as$host_exeext
1742 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1743 in_tree_gas_is_elf=no
1744 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1745 || (grep 'obj_format = multi' ../gas/Makefile \
1746 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1748 in_tree_gas_is_elf=yes
1750 m4_pattern_allow([AS_FOR_TARGET])dnl
1751 elif test -x "$AS_FOR_TARGET"; then
1752 gcc_cv_as="$AS_FOR_TARGET"
1753 elif test -x "$AS" && test x$host = x$target; then
1757 if test "x$gcc_cv_as" = x; then
1758 # Search the same directories that the installed compiler will
1759 # search. Else we may find the wrong assembler and lose. If we
1760 # do not find a suitable assembler binary, then try the user's
1763 # Also note we have to check MD_EXEC_PREFIX before checking the
1764 # user's path. Unfortunately, there is no good way to get at the
1765 # value of MD_EXEC_PREFIX here. So we do a brute force search
1766 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1767 # to be fixed as part of the make/configure rewrite too.
1769 if test "x$exec_prefix" = xNONE; then
1770 if test "x$prefix" = xNONE; then
1771 test_prefix=/usr/local
1776 test_prefix=$exec_prefix
1779 # If the loop below does not find an assembler, then use whatever
1780 # one we can find in the users's path.
1782 if test "x$program_prefix" != xNONE; then
1783 gcc_cv_as=${program_prefix}as$host_exeext
1785 gcc_cv_as=`echo as | sed "${program_transform_name}"`$host_exeext
1788 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1789 $test_prefix/libexec/gcc/$target_noncanonical \
1790 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1791 /usr/lib/gcc/$target_noncanonical \
1792 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1793 $test_prefix/$target_noncanonical/bin"
1795 if test x$host = x$target; then
1796 test_dirs="$test_dirs \
1801 /bsd43/usr/lib/cmplrs/cc \
1802 /usr/cross64/usr/bin \
1803 /usr/lib/cmplrs/cc \
1804 /sysv/usr/lib/cmplrs/cc \
1805 /svr4/usr/lib/cmplrs/cc \
1809 for dir in $test_dirs; do
1810 if test -x $dir/as$host_exeext; then
1811 gcc_cv_as=$dir/as$host_exeext
1816 case $in_tree_gas in
1818 AC_MSG_RESULT("newly built gas")
1821 AC_MSG_RESULT($gcc_cv_as)
1825 # Identify the linker which will work hand-in-glove with the newly
1826 # built GCC, so that we can examine its features. This is the linker
1827 # which will be driven by the driver program.
1829 # If build != host, and we aren't building gas in-tree, we identify a
1830 # build->target linker and hope that it will have the same features
1831 # as the host->target linker we'll be using.
1832 AC_MSG_CHECKING(what linker to use)
1835 gcc_cv_gld_major_version=
1836 gcc_cv_gld_minor_version=
1837 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1838 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1839 if test -x "$DEFAULT_LINKER"; then
1840 gcc_cv_ld="$DEFAULT_LINKER"
1841 elif test -x collect-ld$host_exeext; then
1842 # Build using linker in the current directory.
1843 gcc_cv_ld=./collect-ld$host_exeext
1844 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1845 && test -f ../ld/Makefile \
1846 && test x$build = x$host; then
1847 # Single tree build which includes ld. We want to prefer it
1848 # over whatever linker top-level may have detected, since
1849 # we'll use what we're building after installation anyway.
1851 in_tree_ld_is_elf=no
1852 if (grep 'EMUL = .*elf' ../ld/Makefile \
1853 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1854 in_tree_ld_is_elf=yes
1856 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
1859 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1861 if test x$gcc_cv_gld_version != x; then
1866 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1867 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1869 rm -f collect-ld$host_exeext
1870 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1872 elif test -x "$LD_FOR_TARGET"; then
1873 gcc_cv_ld="$LD_FOR_TARGET"
1874 elif test -x "$LD" && test x$host = x$target; then
1878 if test "x$gcc_cv_ld" = x; then
1879 # Search the same directories that the installed compiler will
1880 # search. Else we may find the wrong linker and lose. If we
1881 # do not find a suitable linker binary, then try the user's
1884 # Also note we have to check MD_EXEC_PREFIX before checking the
1885 # user's path. Unfortunately, there is no good way to get at the
1886 # value of MD_EXEC_PREFIX here. So we do a brute force search
1887 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1888 # to be fixed as part of the make/configure rewrite too.
1890 if test "x$exec_prefix" = xNONE; then
1891 if test "x$prefix" = xNONE; then
1892 test_prefix=/usr/local
1897 test_prefix=$exec_prefix
1900 # If the loop below does not find an linker, then use whatever
1901 # one we can find in the users's path.
1903 if test "x$program_prefix" != xNONE; then
1904 gcc_cv_ld=${program_prefix}ld$host_exeext
1906 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$host_exeext
1909 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1910 $test_prefix/libexec/gcc/$target_noncanonical \
1911 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1912 /usr/lib/gcc/$target_noncanonical \
1913 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1914 $test_prefix/$target_noncanonical/bin"
1916 if test x$host = x$target; then
1917 test_dirs="$test_dirs \
1922 /bsd43/usr/lib/cmplrs/cc \
1923 /usr/cross64/usr/bin \
1924 /usr/lib/cmplrs/cc \
1925 /sysv/usr/lib/cmplrs/cc \
1926 /svr4/usr/lib/cmplrs/cc \
1930 for dir in $test_dirs; do
1931 if test -x $dir/ld$host_exeext; then
1932 gcc_cv_ld=$dir/ld$host_exeext
1939 AC_MSG_RESULT("newly built ld")
1942 AC_MSG_RESULT($gcc_cv_ld)
1946 # Figure out what nm we will be using.
1947 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1948 AC_MSG_CHECKING(what nm to use)
1950 if test -x nm$host_exeext; then
1951 gcc_cv_nm=./nm$host_exeext
1952 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1953 && test -f ../binutils/Makefile; then
1954 # Single tree build which includes binutils.
1956 gcc_cv_nm=./nm$host_exeext
1957 rm -f nm$host_exeext
1958 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1959 elif test "x$program_prefix" != xNONE; then
1960 gcc_cv_nm=${program_prefix}nm$host_exeext
1962 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$host_exeext
1965 yes) AC_MSG_RESULT("newly built nm") ;;
1966 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1969 # Figure out what objdump we will be using.
1970 AC_MSG_CHECKING(what objdump to use)
1972 if test -x objdump$host_exeext; then
1973 gcc_cv_objdump=./objdump$host_exeext
1974 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1975 && test -f ../binutils/Makefile; then
1976 # Single tree build which includes binutils.
1978 gcc_cv_objdump=./objdump$host_exeext
1979 rm -f objdump$host_exeext
1980 $symbolic_link ../binutils/objdump$host_exeext \
1981 objdump$host_exeext 2>/dev/null
1982 elif test "x$program_prefix" != xNONE; then
1983 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1985 gcc_cv_objdump=`echo objdump | \
1986 sed "${program_transform_name}"`$host_exeext
1988 case $in_tree_objdump in
1989 yes) AC_MSG_RESULT("newly built objdump") ;;
1990 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1993 # Figure out what assembler alignment features are present.
1994 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1998 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1999 [Define if your assembler supports .balign and .p2align.])])
2001 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
2004 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
2005 [Define if your assembler supports specifying the maximum number
2006 of bytes to skip when using the GAS .p2align command.])])
2008 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
2010 [conftest_label1: .word 0
2012 conftest_label2: .word 0
2014 [if test x$gcc_cv_nm != x; then
2015 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
2016 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
2017 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
2019 else gcc_cv_as_subsection_m1=yes
2021 rm -f conftest.nm1 conftest.nm2
2023 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2024 [Define if your assembler supports .subsection and .subsection -1 starts
2025 emitting at the beginning of your section.])])
2027 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2030 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2032 # .hidden needs to be supported in both the assembler and the linker,
2033 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2034 # This is irritatingly difficult to feature test for; we have to check the
2035 # date string after the version number. If we've got an in-tree
2036 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2038 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2039 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2044 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2045 [if test $in_tree_ld = yes ; then
2047 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2048 && test $in_tree_ld_is_elf = yes; then
2049 gcc_cv_ld_hidden=yes
2052 gcc_cv_ld_hidden=yes
2053 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2054 if echo "$ld_ver" | grep GNU > /dev/null; then
2056 ld_vers=`echo $ld_ver | sed -n \
2057 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2058 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2059 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2060 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2061 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2062 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2063 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2064 if test 0"$ld_date" -lt 20020404; then
2065 if test -n "$ld_date"; then
2066 # If there was date string, but was earlier than 2002-04-04, fail
2068 elif test -z "$ld_vers"; then
2069 # If there was no date string nor ld version number, something is wrong
2072 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2073 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2074 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2075 test -z "$ld_vers_patch" && ld_vers_patch=0
2076 if test "$ld_vers_major" -lt 2; then
2078 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2079 gcc_cv_ld_hidden="no"
2080 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2088 hppa64*-*-hpux* | ia64*-*-hpux*)
2089 gcc_cv_ld_hidden=yes
2097 libgcc_visibility=no
2098 AC_SUBST(libgcc_visibility)
2099 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2100 libgcc_visibility=yes
2101 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2102 [Define if your assembler and linker support .hidden.])
2105 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2106 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2114 [# GAS versions before 2.11 do not support uleb128,
2115 # despite appearing to.
2116 # ??? There exists an elf-specific test that will crash
2117 # the assembler. Perhaps it's better to figure out whether
2118 # arbitrary sections are supported and try the test.
2119 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2120 if echo "$as_ver" | grep GNU > /dev/null; then
2122 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2123 as_major=`echo $as_ver | sed 's/\..*//'`
2124 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2126 if test $as_major -eq 2 && test $as_minor -lt 11
2128 else gcc_cv_as_leb128=yes
2131 [AC_DEFINE(HAVE_AS_LEB128, 1,
2132 [Define if your assembler supports .sleb128 and .uleb128.])])
2134 # GAS versions up to and including 2.11.0 may mis-optimize
2136 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2144 .section .eh_frame,"aw",@progbits
2146 .4byte .LECIE1-.LSCIE1
2160 .4byte .LEFDE1-.LASFDE1
2162 .4byte .LASFDE1-__FRAME_BEGIN__
2170 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2171 cat > conftest.lit <<EOF
2172 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2173 0010 01000000 12000000 18000000 00000000 ................
2174 0020 08000000 04080000 0044 .........D @&t@
2176 cat > conftest.big <<EOF
2177 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2178 0010 00000001 00000012 00000018 00000000 ................
2179 0020 00000008 04000000 0844 .........D @&t@
2181 # If the assembler didn't choke, and we can objdump,
2182 # and we got the correct data, then succeed.
2183 if test x$gcc_cv_objdump != x \
2184 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2185 | tail -3 > conftest.got \
2186 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2187 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2189 gcc_cv_as_eh_frame=yes
2190 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2191 gcc_cv_as_eh_frame=buggy
2193 # Uh oh, what do we do now?
2194 gcc_cv_as_eh_frame=no
2197 if test $gcc_cv_as_eh_frame = buggy; then
2198 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2199 [Define if your assembler mis-optimizes .eh_frame data.])
2202 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2203 [elf,2,12,0], [--fatal-warnings],
2204 [.section .rodata.str, "aMS", @progbits, 1])
2205 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2206 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2207 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2209 # Thread-local storage - the check is heavily parametrized.
2218 .section ".tdata","awT",@progbits
2221 ldq $27,__tls_get_addr($29) !literal!1
2222 lda $16,foo($29) !tlsgd!1
2223 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2224 ldq $27,__tls_get_addr($29) !literal!2
2225 lda $16,foo($29) !tlsldm!2
2226 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2227 ldq $1,foo($29) !gotdtprel
2228 ldah $2,foo($29) !dtprelhi
2229 lda $3,foo($2) !dtprello
2230 lda $4,foo($29) !dtprel
2231 ldq $1,foo($29) !gottprel
2232 ldah $2,foo($29) !tprelhi
2233 lda $3,foo($2) !tprello
2234 lda $4,foo($29) !tprel'
2237 tls_as_opt=--fatal-warnings
2241 .section ".tdata","awT",@progbits
2245 leal foo@TLSGD(,%ebx,1), %eax
2246 leal foo@TLSLDM(%ebx), %eax
2247 leal foo@DTPOFF(%eax), %edx
2248 movl foo@GOTTPOFF(%ebx), %eax
2249 subl foo@GOTTPOFF(%ebx), %eax
2250 addl foo@GOTNTPOFF(%ebx), %eax
2251 movl foo@INDNTPOFF, %eax
2252 movl $foo@TPOFF, %eax
2253 subl $foo@TPOFF, %eax
2254 leal foo@NTPOFF(%ecx), %eax'
2257 tls_as_opt=--fatal-warnings
2261 .section ".tdata","awT",@progbits
2265 leaq foo@TLSGD(%rip), %rdi
2266 leaq foo@TLSLD(%rip), %rdi
2267 leaq foo@DTPOFF(%rax), %rdx
2268 movq foo@GOTTPOFF(%rip), %rax
2269 movq $foo@TPOFF, %rax'
2272 tls_as_opt=--fatal-warnings
2276 .section ".tdata","awT",@progbits
2279 addl r16 = @ltoff(@dtpmod(foo#)), gp
2280 addl r17 = @ltoff(@dtprel(foo#)), gp
2281 addl r18 = @ltoff(@tprel(foo#)), gp
2282 addl r19 = @dtprel(foo#), gp
2283 adds r21 = @dtprel(foo#), r13
2284 movl r23 = @dtprel(foo#)
2285 addl r20 = @tprel(foo#), gp
2286 adds r22 = @tprel(foo#), r13
2287 movl r24 = @tprel(foo#)'
2290 tls_as_opt=--fatal-warnings
2294 .section ".tdata","awT",@progbits
2302 addi 3,31,ld0@got@tlsgd
2304 addi 3,31,x1@got@tlsld
2307 addis 9,3,x2@dtprel@ha
2308 addi 9,9,x2@dtprel@l
2309 lwz 9,x3@got@tprel(31)
2312 addis 9,2,x2@tprel@ha
2313 addi 9,9,x2@tprel@l'
2316 tls_as_opt="-a32 --fatal-warnings"
2320 .section ".tdata","awT",@progbits
2328 addi 3,2,ld0@got@tlsgd
2334 addi 3,2,x1@got@tlsld
2340 addis 9,3,x2@dtprel@ha
2341 addi 9,9,x2@dtprel@l
2344 ld 9,x3@got@dtprel(2)
2350 tls_as_opt="-a64 --fatal-warnings"
2354 .section ".tdata","awT",@progbits
2363 l %r1,foo@GOTNTPOFF(%r12)
2364 l %r1,0(%r1):tls_load:foo
2365 bas %r14,0(%r1,%r13):tls_gdcall:foo
2366 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2369 tls_as_opt="-m31 --fatal-warnings"
2373 .section ".tdata","awT",@progbits
2381 lg %r1,foo@GOTNTPOFF(%r12)
2382 larl %r1,foo@INDNTPOFF
2383 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2384 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2387 tls_as_opt="-m64 -Aesame --fatal-warnings"
2389 sh-*-* | sh[34]-*-*)
2391 .section ".tdata","awT",@progbits
2401 tls_as_opt=--fatal-warnings
2405 sparc*-sun-solaris2.*)
2412 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2414 .section ".tdata",#alloc,#write,#tls
2417 sethi %tgd_hi22(foo), %o0
2418 add %o0, %tgd_lo10(foo), %o1
2419 add %l7, %o1, %o0, %tgd_add(foo)
2420 call __tls_get_addr, %tgd_call(foo)
2421 sethi %tldm_hi22(foo), %l1
2422 add %l1, %tldm_lo10(foo), %l2
2423 add %l7, %l2, %o0, %tldm_add(foo)
2424 call __tls_get_addr, %tldm_call(foo)
2425 sethi %tldo_hix22(foo), %l3
2426 xor %l3, %tldo_lox10(foo), %l4
2427 add %o0, %l4, %l5, %tldo_add(foo)
2428 sethi %tie_hi22(foo), %o3
2429 add %o3, %tie_lo10(foo), %o3
2430 ld [%l7 + %o3], %o2, %tie_ld(foo)
2431 add %g7, %o2, %o4, %tie_add(foo)
2432 sethi %tle_hix22(foo), %l1
2433 xor %l1, %tle_lox10(foo), %o5
2434 ld [%g7 + %o5], %o1'
2439 .section ".tdata","awT",@progbits
2442 sethi %tgd_hi22(foo), %o0
2443 add %o0, %tgd_lo10(foo), %o1
2444 add %l7, %o1, %o0, %tgd_add(foo)
2445 call __tls_get_addr, %tgd_call(foo)
2446 sethi %tldm_hi22(foo), %l1
2447 add %l1, %tldm_lo10(foo), %l2
2448 add %l7, %l2, %o0, %tldm_add(foo)
2449 call __tls_get_addr, %tldm_call(foo)
2450 sethi %tldo_hix22(foo), %l3
2451 xor %l3, %tldo_lox10(foo), %l4
2452 add %o0, %l4, %l5, %tldo_add(foo)
2453 sethi %tie_hi22(foo), %o3
2454 add %o3, %tie_lo10(foo), %o3
2455 ld [%l7 + %o3], %o2, %tie_ld(foo)
2456 add %g7, %o2, %o4, %tie_add(foo)
2457 sethi %tle_hix22(foo), %l1
2458 xor %l1, %tle_lox10(foo), %o5
2459 ld [%g7 + %o5], %o1'
2462 tls_as_opt="-32 --fatal-warnings"
2467 if test -z "$tls_first_major"; then
2468 : # If we don't have a check, assume no support.
2470 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2471 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2472 [AC_DEFINE(HAVE_AS_TLS, 1,
2473 [Define if your assembler supports thread-local storage.])])
2476 # Target-specific assembler checks.
2478 if test x"$demangler_in_ld" = xyes; then
2479 AC_MSG_CHECKING(linker --demangle support)
2480 gcc_cv_ld_demangle=no
2481 if test $in_tree_ld = yes; then
2482 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2483 gcc_cv_ld_demangle=yes
2485 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2486 # Check if the GNU linker supports --demangle option
2487 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2488 gcc_cv_ld_demangle=yes
2491 if test x"$gcc_cv_ld_demangle" = xyes; then
2492 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2493 [Define if your linker supports --demangle option.])
2495 AC_MSG_RESULT($gcc_cv_ld_demangle)
2499 # All TARGET_ABI_OSF targets.
2500 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2501 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2502 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2505 extbl $3, $2, $3 !lituse_bytoff!1
2506 ldq $2, a($29) !literal!1
2507 ldq $4, b($29) !literal!2
2508 ldq_u $3, 0($2) !lituse_base!1
2509 ldq $27, f($29) !literal!5
2510 jsr $26, ($27), f !lituse_jsr!5
2511 ldah $29, 0($26) !gpdisp!3
2512 lda $0, c($29) !gprel
2513 ldah $1, d($29) !gprelhigh
2514 lda $1, d($1) !gprellow
2515 lda $29, 0($29) !gpdisp!3],,
2516 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2517 [Define if your assembler supports explicit relocations.])])
2521 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2522 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2523 [-no-mul-bug-abort], [.text],,
2524 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2525 [Define if your assembler supports the -no-mul-bug-abort option.])])
2529 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2530 [.register %g2, #scratch],,
2531 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2532 [Define if your assembler supports .register.])])
2534 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2536 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2537 [Define if your assembler supports -relax option.])])
2539 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2540 gcc_cv_as_sparc_ua_pcrel,,
2548 .uaword %r_disp32(foo)],
2549 [if test x$gcc_cv_ld != x \
2550 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2551 gcc_cv_as_sparc_ua_pcrel=yes
2554 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2555 [Define if your assembler and linker support unaligned PC relative relocs.])
2557 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2558 gcc_cv_as_sparc_ua_pcrel_hidden,,
2563 .uaword %r_disp32(foo)
2564 .byte 0x32, 0x33, 0x34
2569 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2570 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2571 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2572 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2573 if $gcc_cv_objdump -R conftest 2> /dev/null \
2574 | grep 'DISP32' > /dev/null 2>&1; then
2577 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2581 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2582 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2583 ]) # unaligned pcrel relocs
2585 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2586 gcc_cv_as_sparc_offsetable_lo10,,
2589 or %g1, %lo(ab) + 12, %g1
2590 or %g1, %lo(ab + 12), %g1],
2591 [if test x$gcc_cv_objdump != x \
2592 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2593 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2594 gcc_cv_as_offsetable_lo10=yes
2596 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2597 [Define if your assembler supports offsetable %lo().])])
2601 i[34567]86-*-* | x86_64-*-*)
2604 cygwin* | pe | mingw32*)
2605 # Used for DWARF 2 in PE
2606 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2607 gcc_cv_as_ix86_pe_secrel32,
2613 [if test x$gcc_cv_ld != x \
2614 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2615 gcc_cv_as_ix86_pe_secrel32=yes
2618 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2619 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2623 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2624 gcc_cv_as_ix86_filds_fists,
2625 [2,9,0],, [filds mem; fists mem],,
2626 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2627 [Define if your assembler uses the new HImode fild and fist notation.])])
2629 gcc_GAS_CHECK_FEATURE([cmov syntax],
2630 gcc_cv_as_ix86_cmov_sun_syntax,,,
2631 [cmovl.l %edx, %eax],,
2632 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2633 [Define if your assembler supports the Sun syntax for cmov.])])
2635 # This one is used unconditionally by i386.[ch]; it is to be defined
2636 # to 1 if the feature is present, 0 otherwise.
2637 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2638 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2644 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2645 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2646 [Define true if the assembler supports '.long foo@GOTOFF'.])
2650 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2651 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2653 addl r15 = @ltoffx(x#), gp
2655 ld8.mov r16 = [[r15]], x#],,
2656 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2657 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2663 *-*-aix*) conftest_s=' .csect .text[[PR]]
2665 *-*-darwin*) conftest_s=' .text
2667 *) conftest_s=' .text
2671 gcc_GAS_CHECK_FEATURE([mfcr field support],
2672 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2674 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2675 [Define if your assembler supports mfcr field.])])
2679 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2680 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2681 [ lw $4,%gp_rel(foo)($4)],,
2682 [if test x$target_cpu_default = x
2683 then target_cpu_default=MASK_EXPLICIT_RELOCS
2684 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2689 # ??? Not all targets support dwarf2 debug_line, even within a version
2690 # of gas. Moreover, we need to emit a valid instruction to trigger any
2691 # info to the output file. So, as supported targets are added to gas 2.11,
2692 # add some instruction here to (also) show we expect this might work.
2693 # ??? Once 2.11 is released, probably need to add first known working
2694 # version to the per-target configury.
2696 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2697 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2698 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2701 ia64*-*-* | s390*-*-*)
2708 if test x"$insn" != x; then
2710 .file 1 \"conftest.s\"
2713 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2714 gcc_cv_as_dwarf2_debug_line,
2715 [elf,2,11,0],, [$conftest_s],
2716 [# ??? This fails with non-gnu grep. Maybe use objdump?
2717 if grep debug_line conftest.o > /dev/null 2>&1; then
2718 gcc_cv_as_dwarf2_debug_line=yes
2721 # The .debug_line file table must be in the exact order that
2722 # we specified the files, since these indices are also used
2723 # by DW_AT_decl_file. Approximate this test by testing if
2724 # the assembler bitches if the same index is assigned twice.
2725 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2726 gcc_cv_as_dwarf2_file_buggy,,,
2730 if test $gcc_cv_as_dwarf2_debug_line = yes \
2731 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2732 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2733 [Define if your assembler supports dwarf2 .file/.loc directives,
2734 and preserves file table indices exactly as given.])
2737 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2738 gcc_cv_as_gdwarf2_flag,
2739 [elf,2,11,0], [--gdwarf2], [$insn],,
2740 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2741 [Define if your assembler supports the --gdwarf2 option.])])
2743 gcc_GAS_CHECK_FEATURE([--gstabs option],
2744 gcc_cv_as_gstabs_flag,
2745 [elf,2,11,0], [--gstabs], [$insn],
2746 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2747 # and warns about it, but still exits successfully. So check for
2749 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2751 else gcc_cv_as_gstabs_flag=yes
2753 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2754 [Define if your assembler supports the --gstabs option.])])
2757 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2758 gcc_cv_ld_ro_rw_mix=unknown
2759 if test $in_tree_ld = yes ; then
2760 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2761 && test $in_tree_ld_is_elf = yes; then
2762 gcc_cv_ld_ro_rw_mix=read-write
2764 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2765 echo '.section myfoosect, "a"' > conftest1.s
2766 echo '.section myfoosect, "aw"' > conftest2.s
2767 echo '.byte 1' >> conftest2.s
2768 echo '.section myfoosect, "a"' > conftest3.s
2769 echo '.byte 0' >> conftest3.s
2770 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2771 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2772 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2773 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2774 conftest2.o conftest3.o > /dev/null 2>&1; then
2775 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2776 | sed -e '/myfoosect/!d' -e N`
2777 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2778 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2779 gcc_cv_ld_ro_rw_mix=read-only
2781 gcc_cv_ld_ro_rw_mix=read-write
2786 rm -f conftest.* conftest[123].*
2789 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2790 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2791 [Define if your linker links a mix of read-only
2792 and read-write sections into a read-write section.])
2794 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2796 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2797 gcc_cv_ld_eh_frame_hdr=no
2798 if test $in_tree_ld = yes ; then
2799 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2800 && test $in_tree_ld_is_elf = yes; then
2801 gcc_cv_ld_eh_frame_hdr=yes
2803 elif test x$gcc_cv_ld != x; then
2804 # Check if linker supports --eh-frame-hdr option
2805 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2806 gcc_cv_ld_eh_frame_hdr=yes
2809 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2810 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2811 [Define if your linker supports --eh-frame-hdr option.])
2813 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2815 AC_MSG_CHECKING(linker position independent executable support)
2817 if test $in_tree_ld = yes ; then
2818 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2819 && test $in_tree_ld_is_elf = yes; then
2822 elif test x$gcc_cv_ld != x; then
2823 # Check if linker supports -pie option
2824 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2828 if test x"$gcc_cv_ld_pie" = xyes; then
2829 AC_DEFINE(HAVE_LD_PIE, 1,
2830 [Define if your linker supports -pie option.])
2832 AC_MSG_RESULT($gcc_cv_ld_pie)
2838 AC_CACHE_CHECK(linker --as-needed support,
2839 gcc_cv_ld_as_needed,
2840 [gcc_cv_ld_as_needed=no
2841 if test $in_tree_ld = yes ; then
2842 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2843 && test $in_tree_ld_is_elf = yes; then
2844 gcc_cv_ld_as_needed=yes
2846 elif test x$gcc_cv_ld != x; then
2847 # Check if linker supports --as-needed and --no-as-needed options
2848 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2849 gcc_cv_ld_as_needed=yes
2853 if test x"$gcc_cv_ld_as_needed" = xyes; then
2854 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2855 [Define if your linker supports --as-needed and --no-as-needed options.])
2858 if test x$with_sysroot = x && test x$host = x$target \
2859 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2860 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2861 [Define to PREFIX/include if cpp should also search that directory.])
2864 # Find out what GC implementation we want, or may, use.
2866 [ --with-gc={page,zone} choose the garbage collection mechanism to use
2873 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2878 echo "Using $GGC for garbage collection."
2880 # Use the system's zlib library.
2882 zlibinc="-I\$(srcdir)/../zlib"
2883 AC_ARG_WITH(system-zlib,
2884 [ --with-system-zlib use installed libz],
2891 dnl Very limited version of automake's enable-maintainer-mode
2893 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2894 dnl maintainer-mode is disabled by default
2895 AC_ARG_ENABLE(maintainer-mode,
2896 [ --enable-maintainer-mode
2897 enable make rules and dependencies not useful
2898 (and sometimes confusing) to the casual installer],
2899 maintainer_mode=$enableval,
2902 AC_MSG_RESULT($maintainer_mode)
2904 if test "$maintainer_mode" = "yes"; then
2911 AC_MSG_CHECKING([whether to use libbanshee for points-to alias analysis])
2912 AC_ARG_WITH(libbanshee,
2913 [ --with-libbanshee enable libbanshee],
2914 libbanshee="$with_libbanshee",
2917 if test x"$libbanshee" = xyes; then
2918 BANSHEELIB="../libbanshee/points-to/libandersen.a ../libbanshee/engine/libbansheeengine.a ../libbanshee/libcompat/libbansheecompat.a "
2919 BANSHEEINC="-I\$(srcdir)/../libbanshee/libcompat -I\$(srcdir)/../libbanshee -I\$(srcdir)/../libbanshee/points-to"
2920 ANDER="tree-alias-ander.o"
2921 AC_DEFINE(HAVE_BANSHEE, 1, [Define if BANSHEE is available])
2927 AC_MSG_RESULT($with_libbanshee)
2930 AC_SUBST(BANSHEEINC)
2931 AC_SUBST(BANSHEELIB)
2937 # Make empty files to contain the specs and options for each language.
2938 # Then add #include lines to for a compiler that has specs and/or options.
2943 for subdir in . $subdirs
2945 if test -f $srcdir/$subdir/lang.opt; then
2946 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2948 if test -f $srcdir/$subdir/lang-specs.h; then
2949 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2951 if test -f $srcdir/$subdir/$subdir-tree.def; then
2952 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2956 # These (without "all_") are set in each config-lang.in.
2957 # `language' must be a single word so is spelled singularly.
2962 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders libada-mk'
2963 # List of language makefile fragments.
2965 # List of language subdirectory makefiles. Deprecated.
2967 # Files for gengtype
2968 all_gtfiles="$target_gtfiles"
2969 # Files for gengtype with language
2970 all_gtfiles_files_langs=
2971 all_gtfiles_files_files=
2973 # Add the language fragments.
2974 # Languages are added via two mechanisms. Some information must be
2975 # recorded in makefile variables, these are defined in config-lang.in.
2976 # We accumulate them and plug them into the main Makefile.
2977 # The other mechanism is a set of hooks for each of the main targets
2978 # like `clean', `install', etc.
2980 language_hooks="Make-hooks"
2990 . ${srcdir}/$s/config-lang.in
2991 if test "x$language" = x
2993 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2996 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2997 if test -f ${srcdir}/$s/Makefile.in
2998 then all_lang_makefiles="$s/Makefile"
3000 all_languages="$all_languages $language"
3001 if test "x$boot_language" = xyes
3003 all_boot_languages="$all_boot_languages $language"
3005 all_compilers="$all_compilers $compilers"
3006 all_stagestuff="$all_stagestuff $stagestuff"
3007 all_outputs="$all_outputs $outputs"
3008 all_gtfiles="$all_gtfiles $gtfiles"
3011 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3012 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3016 # Pick up gtfiles for c
3019 . ${srcdir}/c-config-lang.in
3020 all_gtfiles="$all_gtfiles $gtfiles"
3023 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3024 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3028 for language in $all_languages
3030 check_languages="$check_languages check-$language"
3033 # We link each language in with a set of hooks, reached indirectly via
3038 target_list="all.build all.cross start.encap rest.encap tags \
3039 install-normal install-common install-man \
3040 uninstall info man srcextra srcman srcinfo \
3041 mostlyclean clean distclean maintainer-clean \
3042 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3043 for t in $target_list
3046 for lang in $all_languages
3050 echo "lang.$t: $x" >> Make-hooks
3059 echo "dir ." > .gdbinit
3060 echo "dir ${srcdir}" >> .gdbinit
3061 if test x$gdb_needs_out_file_path = xyes
3063 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3065 if test "x$subdirs" != x; then
3068 echo "dir ${srcdir}/$s" >> .gdbinit
3071 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3073 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3074 # absolute path for gcc_tooldir based on inserting the number of up-directory
3075 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3076 # $(libsubdir)/@(unlibsubdir) based path.
3077 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3078 # make and thus we'd get different behavior depending on where we built the
3080 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3081 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3083 changequote(<<, >>)dnl
3084 # An explanation of the sed strings:
3085 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3086 # -e 's|/$||' match a trailing forward slash and eliminates it
3087 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3088 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3090 # (*) Note this pattern overwrites the first character of the string
3091 # with a forward slash if one is not already present. This is not a
3092 # problem because the exact names of the sub-directories concerned is
3093 # unimportant, just the number of them matters.
3095 # The practical upshot of these patterns is like this:
3097 # prefix exec_prefix result
3098 # ------ ----------- ------
3100 # /foo/ /foo/bar ../
3101 # /foo /foo/bar/ ../
3102 # /foo/ /foo/bar/ ../
3103 # /foo /foo/bar/ugg ../../
3106 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3107 changequote([, ])dnl
3109 AC_SUBST(gcc_tooldir)
3112 # Find a directory in which to install a shared libgcc.
3114 AC_ARG_ENABLE(version-specific-runtime-libs,
3115 [ --enable-version-specific-runtime-libs
3116 specify that runtime libraries should be
3117 installed in a compiler-specific directory])
3119 AC_ARG_WITH(slibdir,
3120 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3121 slibdir="$with_slibdir",
3122 if test "${enable_version_specific_runtime_libs+set}" = set; then
3123 slibdir='$(libsubdir)'
3124 elif test "$host" != "$target"; then
3125 slibdir='$(build_tooldir)/lib'
3131 objdir=`${PWDCMD-pwd}`
3134 # Substitute configuration variables
3137 AC_SUBST(all_boot_languages)
3138 AC_SUBST(all_compilers)
3139 AC_SUBST(all_gtfiles)
3140 AC_SUBST(all_gtfiles_files_langs)
3141 AC_SUBST(all_gtfiles_files_files)
3142 AC_SUBST(all_lang_makefrags)
3143 AC_SUBST(all_lang_makefiles)
3144 AC_SUBST(all_languages)
3145 AC_SUBST(all_stagestuff)
3146 AC_SUBST(build_exeext)
3147 AC_SUBST(build_install_headers_dir)
3148 AC_SUBST(build_xm_file_list)
3149 AC_SUBST(build_xm_include_list)
3150 AC_SUBST(build_xm_defines)
3151 AC_SUBST(check_languages)
3152 AC_SUBST(cc_set_by_configure)
3153 AC_SUBST(quoted_cc_set_by_configure)
3154 AC_SUBST(cpp_install_dir)
3155 AC_SUBST(xmake_file)
3156 AC_SUBST(tmake_file)
3157 AC_SUBST(extra_gcc_objs)
3158 AC_SUBST(extra_headers_list)
3159 AC_SUBST(extra_objs)
3160 AC_SUBST(extra_parts)
3161 AC_SUBST(extra_passes)
3162 AC_SUBST(extra_programs)
3163 AC_SUBST(float_h_file)
3164 AC_SUBST(gcc_config_arguments)
3165 AC_SUBST(gcc_gxx_include_dir)
3166 AC_SUBST(libstdcxx_incdir)
3167 AC_SUBST(gcc_version)
3168 AC_SUBST(gcc_version_full)
3169 AC_SUBST(gcc_version_trigger)
3170 AC_SUBST(host_exeext)
3171 AC_SUBST(host_xm_file_list)
3172 AC_SUBST(host_xm_include_list)
3173 AC_SUBST(host_xm_defines)
3174 AC_SUBST(out_host_hook_obj)
3176 AC_SUBST(lang_opt_files)
3177 AC_SUBST(lang_specs_files)
3178 AC_SUBST(lang_tree_files)
3179 AC_SUBST(local_prefix)
3181 AC_SUBST(objc_boehm_gc)
3183 AC_SUBST(out_object_file)
3184 AC_SUBST(stage_prefix_set_by_configure)
3185 AC_SUBST(quoted_stage_prefix_set_by_configure)
3186 AC_SUBST(symbolic_link)
3187 AC_SUBST(thread_file)
3188 AC_SUBST(tm_file_list)
3189 AC_SUBST(tm_include_list)
3190 AC_SUBST(tm_defines)
3191 AC_SUBST(tm_p_file_list)
3192 AC_SUBST(tm_p_include_list)
3193 AC_SUBST(xm_file_list)
3194 AC_SUBST(xm_include_list)
3195 AC_SUBST(xm_defines)
3196 AC_SUBST(target_noncanonical)
3197 AC_SUBST(c_target_objs)
3198 AC_SUBST(cxx_target_objs)
3199 AC_SUBST(target_cpu_default)
3201 AC_SUBST_FILE(language_hooks)
3203 # If it doesn't already exist, create document directory
3204 echo "checking for the document directory." 1>&2
3205 if test -d doc ; then
3212 if test x${build} = x${host} ; then
3213 if test x${host} = x${target} ; then
3214 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3216 echo "Links are now set up to build a cross-compiler" 1>&2
3217 echo " from ${host} to ${target}." 1>&2
3220 if test x${host} = x${target} ; then
3221 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3222 echo " for ${target}." 1>&2
3224 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3225 echo " from ${host} to ${target}." 1>&2
3229 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3230 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3232 # Configure the subdirectories
3233 # AC_CONFIG_SUBDIRS($subdirs)
3235 # Create the Makefile
3236 # and configure language subdirectories
3237 AC_CONFIG_FILES($all_outputs)
3239 AC_CONFIG_COMMANDS([default],
3241 case ${CONFIG_HEADERS} in
3242 *auto-host.h:config.in*)
3245 # Make sure all the subdirs exist.
3248 test -d $d || mkdir $d
3250 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3251 # bootstrapping and the installation procedure can still use
3252 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3253 # FLAGS_TO_PASS has been modified to solve the problem there.
3254 # This is virtually a duplicate of what happens in configure.lang; we do
3255 # an extra check to make sure this only happens if ln -s can be used.
3256 if test "$symbolic_link" = "ln -s"; then
3257 for d in ${subdirs} fixinc ; do
3258 STARTDIR=`${PWDCMD-pwd}`
3260 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3263 $symbolic_link ../$t $t 2>/dev/null
3270 symbolic_link='$symbolic_link'