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 ACX_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 $srcdir/../flex/skel.c \
795 && test -d ../flex ; then
796 FLEX='$(objdir)/../flex/flex'
798 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
802 # The -L switch is so bison can find its skeleton file.
803 if test x${build} = x${host} && test -f $srcdir/../bison/bison.simple \
804 && test -d ../bison ; then
805 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
807 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
811 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
812 && test -d ../binutils ; then
813 NM='$(objdir)/../binutils/nm-new'
815 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
819 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
820 && test -d ../binutils ; then
821 AR='$(objdir)/../binutils/ar'
823 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
827 # --------------------
828 # Checks for C headers
829 # --------------------
831 AC_MSG_CHECKING(for GNU C library)
832 AC_CACHE_VAL(gcc_cv_glibc,
834 [#include <features.h>],[
835 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
836 #error Not a GNU C library system
840 AC_MSG_RESULT($gcc_cv_glibc)
841 if test $gcc_cv_glibc = yes; then
842 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
845 # Need to reject headers which give warnings, so that the -Werror bootstrap
846 # works later. *sigh* This needs to come before all header checks.
853 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
854 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
855 sys/resource.h sys/param.h sys/times.h sys/stat.h \
856 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
858 # Check for thread headers.
859 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
860 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
862 # These tests can't be done till we know if we have limits.h.
870 # Stage specific cflags for build.
876 stage1_cflags="-Wa,-J"
882 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
883 # sources; use -no-cpp-precomp to get to GNU cpp.
884 # Apple's GCC has bugs in designated initializer handling, so disable
886 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
889 AC_SUBST(stage1_cflags)
891 # These libraries may be used by collect2.
892 # We may need a special search path to get them linked.
893 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
895 for libs in '' -lld -lmld \
896 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
897 '-L/usr/lib/cmplrs/cc3.11 -lmld'
900 AC_TRY_LINK_FUNC(ldopen,
901 [gcc_cv_collect2_libs="$libs"; break])
904 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
905 case $gcc_cv_collect2_libs in
907 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
909 AC_SUBST(COLLECT2_LIBS)
911 # When building Ada code on Alpha, we need exc_resume which is usually in
912 # -lexc. So test for it.
915 AC_SEARCH_LIBS(exc_resume, exc)
918 AC_SUBST(GNAT_LIBEXC)
920 # Some systems put ldexp and frexp in libm instead of libc; assume
921 # they're both in the same place. jcf-dump needs them.
924 AC_SEARCH_LIBS(ldexp, m)
929 # Use <inttypes.h> only if it exists,
930 # doesn't clash with <sys/types.h>, and declares intmax_t.
931 AC_MSG_CHECKING(for inttypes.h)
932 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
934 [#include <sys/types.h>
935 #include <inttypes.h>],
937 [gcc_cv_header_inttypes_h=yes],
938 gcc_cv_header_inttypes_h=no)])
939 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
940 if test $gcc_cv_header_inttypes_h = yes; then
941 AC_DEFINE(HAVE_INTTYPES_H, 1,
942 [Define if you have a working <inttypes.h> header file.])
945 dnl Disabled until we have a complete test for buggy enum bitfields.
946 dnl gcc_AC_C_ENUM_BF_UNSIGNED
948 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
949 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
950 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
951 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
954 if test x$ac_cv_func_mbstowcs = xyes; then
955 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
956 [ AC_TRY_RUN([#include <stdlib.h>
962 gcc_cv_func_mbstowcs_works=yes,
963 gcc_cv_func_mbstowcs_works=no,
964 gcc_cv_func_mbstowcs_works=yes)])
965 if test x$gcc_cv_func_mbstowcs_works = xyes; then
966 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
967 [Define this macro if mbstowcs does not crash when its
968 first argument is NULL.])
972 AC_CHECK_TYPE(ssize_t, int)
974 # Try to determine the array type of the second argument of getgroups
975 # for the target system (int or gid_t).
977 if test "${target}" = "${build}"; then
978 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
981 # This condition may need some tweaking. It should include all
982 # targets where the array type of the second argument of getgroups
983 # is int and the type of gid_t is not equivalent to int.
984 *-*-sunos* | *-*-ultrix*)
985 TARGET_GETGROUPS_T=int
988 TARGET_GETGROUPS_T=gid_t
992 AC_SUBST(TARGET_GETGROUPS_T)
994 gcc_AC_FUNC_PRINTF_PTR
995 gcc_AC_FUNC_MMAP_BLACKLIST
999 # Under VMS, vfork works very differently than on Unix. The standard test
1000 # won't work, and it isn't easily adaptable. It makes more sense to
1002 ac_cv_func_vfork_works=yes
1008 # Until we have in-tree GNU iconv:
1010 AC_SUBST(LIBICONV_DEP)
1014 # We will need to find libiberty.h and ansidecl.h
1015 saved_CFLAGS="$CFLAGS"
1016 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1017 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
1018 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
1019 fprintf_unlocked strstr errno snprintf vasprintf \
1020 malloc realloc calloc free basename getopt clock getpagesize, , ,[
1021 #include "ansidecl.h"
1022 #include "system.h"])
1024 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1025 #include "ansidecl.h"
1027 #ifdef HAVE_SYS_RESOURCE_H
1028 #include <sys/resource.h>
1033 #include "ansidecl.h"
1035 #ifdef HAVE_SYS_RESOURCE_H
1036 #include <sys/resource.h>
1038 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
1039 [Define to \`long' if <sys/resource.h> doesn't define.])])
1041 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1042 #include "ansidecl.h"
1049 gcc_AC_CHECK_DECLS(times, , ,[
1050 #include "ansidecl.h"
1052 #ifdef HAVE_SYS_TIMES_H
1053 #include <sys/times.h>
1057 # More time-related stuff.
1058 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1060 #include "ansidecl.h"
1062 #ifdef HAVE_SYS_TIMES_H
1063 #include <sys/times.h>
1065 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
1066 if test $ac_cv_struct_tms = yes; then
1067 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1068 [Define if <sys/times.h> defines struct tms.])
1071 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1072 # revisit after autoconf 2.50.
1073 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1075 #include "ansidecl.h"
1077 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
1078 if test $gcc_cv_type_clock_t = yes; then
1079 AC_DEFINE(HAVE_CLOCK_T, 1,
1080 [Define if <time.h> defines clock_t.])
1083 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1084 CFLAGS="$saved_CFLAGS"
1086 gcc_AC_INITFINI_ARRAY
1088 # mkdir takes a single argument on some systems.
1089 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1097 # With Setjmp/Longjmp based exception handling.
1098 AC_ARG_ENABLE(sjlj-exceptions,
1099 [ --enable-sjlj-exceptions
1100 arrange to use setjmp/longjmp exception handling],
1101 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1102 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1103 [Define 0/1 to force the choice for exception handling model.])])
1105 if test x$host = x$target; then
1106 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
1108 use_libunwind_default=no
1110 # Use libunwind based exception handling.
1111 AC_ARG_ENABLE(libunwind-exceptions,
1112 [ --enable-libunwind-exceptions force use libunwind for exceptions],
1113 use_libunwind_exceptions=$enableval,
1114 use_libunwind_exceptions=$use_libunwind_default)
1115 if test x"$use_libunwind_exceptions" = xyes; then
1116 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
1117 [Define if gcc should use -lunwind.])
1120 # --------------------------------------------------------
1121 # Build, host, and target specific configuration fragments
1122 # --------------------------------------------------------
1124 # Collect build-machine-specific information.
1125 . ${srcdir}/config.build
1127 # Collect host-machine-specific information.
1128 . ${srcdir}/config.host
1132 # Collect target-machine-specific information.
1133 . ${srcdir}/config.gcc
1135 extra_objs="${host_extra_objs} ${extra_objs}"
1136 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1138 # Default the target-machine variables that were not explicitly set.
1139 if test x"$tm_file" = x
1140 then tm_file=$cpu_type/$cpu_type.h; fi
1142 if test x"$extra_headers" = x
1143 then extra_headers=; fi
1145 if test x$md_file = x
1146 then md_file=$cpu_type/$cpu_type.md; fi
1148 if test x$out_file = x
1149 then out_file=$cpu_type/$cpu_type.c; fi
1151 if test x"$tmake_file" = x
1152 then tmake_file=$cpu_type/t-$cpu_type
1155 if test x"$dwarf2" = xyes
1156 then tm_file="$tm_file tm-dwarf2.h"
1159 # Say what files are being used for the output code and MD file.
1160 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1161 echo "Using \`$srcdir/config/$md_file' as machine description file."
1163 # If any of the xm_file variables contain nonexistent files, warn
1164 # about them and drop them.
1167 for x in $build_xm_file; do
1168 if test -f $srcdir/config/$x
1170 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1176 for x in $host_xm_file; do
1177 if test -f $srcdir/config/$x
1179 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1185 for x in $xm_file; do
1186 if test -f $srcdir/config/$x
1188 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1194 for f in $tm_file; do
1197 if test $count = ax; then
1198 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1200 echo "Using the following target machine macro files:"
1201 for f in $tm_file; do
1202 echo " $srcdir/config/$f"
1206 if test x$need_64bit_hwint = xyes; then
1207 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1208 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1212 for f in $host_xm_file; do
1215 if test $count = a; then
1217 elif test $count = ax; then
1218 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1220 echo "Using the following host machine macro files:"
1221 for f in $host_xm_file; do
1222 echo " $srcdir/config/$f"
1225 echo "Using ${out_host_hook_obj} for host machine hooks."
1227 if test "$host_xm_file" != "$build_xm_file"; then
1229 for f in $build_xm_file; do
1232 if test $count = a; then
1234 elif test $count = ax; then
1235 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1237 echo "Using the following build machine macro files:"
1238 for f in $build_xm_file; do
1239 echo " $srcdir/config/$f"
1248 # Check if a valid thread package
1249 case ${enable_threads} in
1252 target_thread_file='single'
1256 target_thread_file='single'
1258 aix | dce | gnat | irix | posix | rtems | \
1259 single | solaris | vxworks | win32 )
1260 target_thread_file=${enable_threads}
1263 echo "${enable_threads} is an unknown thread package" 1>&2
1268 if test x${thread_file} = x; then
1269 # No thread file set by target-specific clauses in config.gcc,
1270 # so use file chosen by default logic above
1271 thread_file=${target_thread_file}
1274 # Make gthr-default.h if we have a thread file.
1276 if test $thread_file != single; then
1277 rm -f gthr-default.h
1278 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1279 gthread_flags=-DHAVE_GTHR_DEFAULT
1281 AC_SUBST(gthread_flags)
1287 if test x$enable___cxa_atexit = xyes || \
1288 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1289 AC_CHECK_FUNC(__cxa_atexit,
1290 [AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1291 [Define if you want to use __cxa_atexit, rather than atexit, to
1292 register C++ destructors for local statics and global objects.
1293 This is essential for fully standards-compliant handling of
1294 destructors, but requires __cxa_atexit in libc.])],
1295 echo "__cxa_atexit can't be enabled on this target")
1298 # Look for a file containing extra machine modes.
1299 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1300 extra_modes_file='$(srcdir)'/config/${extra_modes}
1301 AC_SUBST(extra_modes_file)
1302 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1303 [Define to the name of a file containing a list of extra machine modes
1304 for this architecture.])
1307 # auto-host.h is the file containing items generated by autoconf and is
1308 # the first file included by config.h.
1309 # If host=build, it is correct to have bconfig include auto-host.h
1310 # as well. If host!=build, we are in error and need to do more
1311 # work to find out the build config parameters.
1312 if test x$host = x$build
1314 build_auto=auto-host.h
1317 # We create a subdir, then run autoconf in the subdir.
1318 # To prevent recursion we set host and build for the new
1319 # invocation of configure to the build for this invocation
1326 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1327 *) realsrcdir=../${srcdir};;
1329 saved_CFLAGS="${CFLAGS}"
1330 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1331 ${realsrcdir}/configure \
1332 --enable-languages=${enable_languages-all} \
1333 --target=$target_alias --host=$build_alias --build=$build_alias
1334 CFLAGS="${saved_CFLAGS}"
1336 # We just finished tests for the build machine, so rename
1337 # the file auto-build.h in the gcc directory.
1338 mv auto-host.h ../auto-build.h
1341 build_auto=auto-build.h
1342 FORBUILD=../${build_subdir}
1346 tm_file="${tm_file} defaults.h"
1347 tm_p_file="${tm_p_file} tm-preds.h"
1348 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1349 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1350 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1351 # put this back in temporarily.
1352 xm_file="ansidecl.h ${xm_file}"
1358 # Get the version trigger filename from the toplevel
1359 if test "${with_gcc_version_trigger+set}" = set; then
1360 gcc_version_trigger=$with_gcc_version_trigger
1362 gcc_version_trigger=${srcdir}/version.c
1365 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1366 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1368 # Compile in configure arguments.
1369 if test -f configargs.h ; then
1370 # Being re-configured.
1371 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1372 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1374 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1377 # Double all backslashes and backslash all quotes to turn
1378 # gcc_config_arguments into a C string.
1379 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1380 $gcc_config_arguments
1382 gcc_config_arguments_str=`cat conftest.out`
1385 cat > configargs.h <<EOF
1386 /* Generated automatically. */
1387 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1388 static const char thread_model[] = "$thread_file";
1390 static const struct {
1391 const char *name, *value;
1392 } configure_default_options[] = $configure_default_options;
1396 # Internationalization
1398 VERSION="$gcc_version"
1399 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
1400 [The name of this program for internationalization purposes.])
1404 ZW_GNU_GETTEXT_SISTER_DIR
1406 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1407 # -liconv on the link line twice.
1408 case "$LIBINTL" in *$LIBICONV*)
1412 # Windows32 Registry support for specifying GCC installation paths.
1413 AC_ARG_ENABLE(win32-registry,
1414 [ --disable-win32-registry
1415 disable lookup of installation paths in the
1416 Registry on Windows hosts
1417 --enable-win32-registry enable registry lookup (default)
1418 --enable-win32-registry=KEY
1419 use KEY instead of GCC version as the last portion
1420 of the registry key],,)
1422 win32 | pe | cygwin* | mingw32* | uwin*)
1423 AC_MSG_CHECKING(whether windows registry support is requested)
1424 if test "x$enable_win32_registry" != xno; then
1425 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1426 [Define to 1 if installation paths should be looked up in Windows32
1427 Registry. Ignored on non windows32 hosts.])
1429 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1434 # Check if user specified a different registry key.
1435 case "x${enable_win32_registry}" in
1438 gcc_cv_win32_registry_key="$VERSION"
1441 # no registry lookup.
1442 gcc_cv_win32_registry_key=''
1445 # user-specified key.
1446 gcc_cv_win32_registry_key="$enable_win32_registry"
1450 if test "x$enable_win32_registry" != xno; then
1451 AC_MSG_CHECKING(registry key on windows hosts)
1452 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1453 [Define to be the last portion of registry key on windows hosts.])
1454 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1459 # Get an absolute path to the GCC top-level source directory
1460 holddir=`${PWDCMD-pwd}`
1462 topdir=`${PWDCMD-pwd}`
1465 # Conditionalize the makefile for this host machine.
1467 for f in ${host_xmake_file}
1469 if test -f ${srcdir}/config/$f
1471 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1475 # Conditionalize the makefile for this target machine.
1477 for f in ${tmake_file}
1479 if test -f ${srcdir}/config/$f
1481 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1484 tmake_file="${tmake_file_}"
1486 symbolic_link='ln -s'
1488 # If the host doesn't support symlinks, modify CC in
1489 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1490 # Otherwise, we can use "CC=$(CC)".
1492 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1494 cc_set_by_configure="\$(CC)"
1495 quoted_cc_set_by_configure="\$(CC)"
1496 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1497 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1500 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1502 symbolic_link="cp -p"
1506 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1507 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1508 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1509 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1513 out_object_file=`basename $out_file .c`.o
1517 for f in $tm_file; do
1520 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1521 tm_include_list="${tm_include_list} $f"
1524 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1525 tm_include_list="${tm_include_list} config/$f"
1532 for f in $tm_p_file; do
1535 tm_p_file_list="${tm_p_file_list} $f"
1536 tm_p_include_list="${tm_p_include_list} $f"
1539 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1540 tm_p_include_list="${tm_p_include_list} config/$f"
1546 for f in $xm_file; do
1549 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1550 xm_include_list="${xm_include_list} $f"
1553 xm_file_list="${xm_file_list} $f"
1554 xm_include_list="${xm_include_list} $f"
1557 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1558 xm_include_list="${xm_include_list} config/$f"
1564 host_xm_include_list=
1565 for f in $host_xm_file; do
1568 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1569 host_xm_include_list="${host_xm_include_list} $f"
1572 host_xm_file_list="${host_xm_file_list} $f"
1573 host_xm_include_list="${host_xm_include_list} $f"
1576 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1577 host_xm_include_list="${host_xm_include_list} config/$f"
1583 for f in $build_xm_file; do
1586 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1587 build_xm_include_list="${build_xm_include_list} $f"
1589 auto-build.h | auto-host.h )
1590 build_xm_file_list="${build_xm_file_list} $f"
1591 build_xm_include_list="${build_xm_include_list} $f"
1594 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1595 build_xm_include_list="${build_xm_include_list} config/$f"
1600 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1601 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1602 CROSS= AC_SUBST(CROSS)
1603 ALL=all.internal AC_SUBST(ALL)
1604 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1605 if test x$host != x$target
1607 CROSS="-DCROSS_COMPILE"
1609 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1610 case "$host","$target" in
1611 # Darwin crosses can use the host system's libraries and headers,
1612 # because of the fat library support. Of course, it must be the
1613 # same version of Darwin on both sides. Allow the user to
1614 # just say --target=foo-darwin without a version number to mean
1615 # "the version on this system".
1616 *-*-darwin*,*-*-darwin*)
1617 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1618 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1619 if test $hostos = $targetos -o $targetos = darwin ; then
1621 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1626 i?86-*-*,x86_64-*-* \
1627 | powerpc*-*-*,powerpc64*-*-*)
1628 CROSS="$CROSS -DNATIVE_CROSS" ;;
1630 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1631 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1632 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1635 # If this is a cross-compiler that does not
1636 # have its own set of headers then define
1639 # If this is using newlib, without having the headers available now,
1640 # then define inhibit_libc in LIBGCC2_CFLAGS.
1641 # This prevents libgcc2 from containing any code which requires libc
1644 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1645 test x$with_newlib = xyes ; } &&
1646 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1647 inhibit_libc=-Dinhibit_libc
1649 AC_SUBST(inhibit_libc)
1651 # When building gcc with a cross-compiler, we need to adjust things so
1652 # that the generator programs are still built with the native compiler.
1653 # Also, we cannot run fixincludes or fix-header.
1655 # These are the normal (build=host) settings:
1656 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1657 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1658 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1660 # Possibly disable fixproto, on a per-target basis.
1661 case ${use_fixproto} in
1666 STMP_FIXPROTO=stmp-fixproto
1669 AC_SUBST(STMP_FIXPROTO)
1671 # And these apply if build != host, or we are generating coverage data
1672 if test x$build != x$host || test "x$coverage_flags" != x
1674 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1676 if test "x$TARGET_SYSTEM_ROOT" = x; then
1682 # Expand extra_headers to include complete path.
1683 # This substitutes for lots of t-* files.
1685 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1686 for file in ${extra_headers} ; do
1687 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1690 # Define collect2 in Makefile.
1691 case $host_can_use_collect2 in
1693 *) collect2='collect2$(exeext)' ;;
1695 AC_SUBST([collect2])
1697 # Add a definition of USE_COLLECT2 if system wants one.
1698 case $use_collect2 in
1699 no) use_collect2= ;;
1702 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1703 xm_defines="${xm_defines} USE_COLLECT2"
1704 case $host_can_use_collect2 in
1706 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1712 # ---------------------------
1713 # Assembler & linker features
1714 # ---------------------------
1716 # Identify the assembler which will work hand-in-glove with the newly
1717 # built GCC, so that we can examine its features. This is the assembler
1718 # which will be driven by the driver program.
1720 # If build != host, and we aren't building gas in-tree, we identify a
1721 # build->target assembler and hope that it will have the same features
1722 # as the host->target assembler we'll be using.
1723 AC_MSG_CHECKING(what assembler to use)
1726 gcc_cv_gas_major_version=
1727 gcc_cv_gas_minor_version=
1728 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1729 if test -x "$DEFAULT_ASSEMBLER"; then
1730 gcc_cv_as="$DEFAULT_ASSEMBLER"
1731 elif test -x as$host_exeext; then
1732 # Build using assembler in the current directory.
1733 gcc_cv_as=./as$host_exeext
1734 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1735 && test -f ../gas/Makefile \
1736 && test x$build = x$host; then
1737 # Single tree build which includes gas. We want to prefer it
1738 # over whatever linker top-level may have detected, since
1739 # we'll use what we're building after installation anyway.
1741 _gcc_COMPUTE_GAS_VERSION
1742 rm -f as$host_exeext
1743 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1744 in_tree_gas_is_elf=no
1745 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1746 || (grep 'obj_format = multi' ../gas/Makefile \
1747 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1749 in_tree_gas_is_elf=yes
1751 m4_pattern_allow([AS_FOR_TARGET])dnl
1752 elif test -x "$AS_FOR_TARGET"; then
1753 gcc_cv_as="$AS_FOR_TARGET"
1754 elif test -x "$AS" && test x$host = x$target; then
1758 if test "x$gcc_cv_as" = x; then
1759 # Search the same directories that the installed compiler will
1760 # search. Else we may find the wrong assembler and lose. If we
1761 # do not find a suitable assembler binary, then try the user's
1764 # Also note we have to check MD_EXEC_PREFIX before checking the
1765 # user's path. Unfortunately, there is no good way to get at the
1766 # value of MD_EXEC_PREFIX here. So we do a brute force search
1767 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1768 # to be fixed as part of the make/configure rewrite too.
1770 if test "x$exec_prefix" = xNONE; then
1771 if test "x$prefix" = xNONE; then
1772 test_prefix=/usr/local
1777 test_prefix=$exec_prefix
1780 # If the loop below does not find an assembler, then use whatever
1781 # one we can find in the users's path.
1783 if test "x$program_prefix" != xNONE; then
1784 gcc_cv_as=${program_prefix}as$host_exeext
1786 gcc_cv_as=`echo as | sed "${program_transform_name}"`$host_exeext
1789 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1790 $test_prefix/libexec/gcc/$target_noncanonical \
1791 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1792 /usr/lib/gcc/$target_noncanonical \
1793 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1794 $test_prefix/$target_noncanonical/bin"
1796 if test x$host = x$target; then
1797 test_dirs="$test_dirs \
1802 /bsd43/usr/lib/cmplrs/cc \
1803 /usr/cross64/usr/bin \
1804 /usr/lib/cmplrs/cc \
1805 /sysv/usr/lib/cmplrs/cc \
1806 /svr4/usr/lib/cmplrs/cc \
1810 for dir in $test_dirs; do
1811 if test -x $dir/as$host_exeext; then
1812 gcc_cv_as=$dir/as$host_exeext
1817 case $in_tree_gas in
1819 AC_MSG_RESULT("newly built gas")
1822 AC_MSG_RESULT($gcc_cv_as)
1826 # Identify the linker which will work hand-in-glove with the newly
1827 # built GCC, so that we can examine its features. This is the linker
1828 # which will be driven by the driver program.
1830 # If build != host, and we aren't building gas in-tree, we identify a
1831 # build->target linker and hope that it will have the same features
1832 # as the host->target linker we'll be using.
1833 AC_MSG_CHECKING(what linker to use)
1836 gcc_cv_gld_major_version=
1837 gcc_cv_gld_minor_version=
1838 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1839 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1840 if test -x "$DEFAULT_LINKER"; then
1841 gcc_cv_ld="$DEFAULT_LINKER"
1842 elif test -x collect-ld$host_exeext; then
1843 # Build using linker in the current directory.
1844 gcc_cv_ld=./collect-ld$host_exeext
1845 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1846 && test -f ../ld/Makefile \
1847 && test x$build = x$host; then
1848 # Single tree build which includes ld. We want to prefer it
1849 # over whatever linker top-level may have detected, since
1850 # we'll use what we're building after installation anyway.
1852 in_tree_ld_is_elf=no
1853 if (grep 'EMUL = .*elf' ../ld/Makefile \
1854 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1855 in_tree_ld_is_elf=yes
1857 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
1860 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1862 if test x$gcc_cv_gld_version != x; then
1867 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1868 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1870 rm -f collect-ld$host_exeext
1871 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1873 elif test -x "$LD_FOR_TARGET"; then
1874 gcc_cv_ld="$LD_FOR_TARGET"
1875 elif test -x "$LD" && test x$host = x$target; then
1879 if test "x$gcc_cv_ld" = x; then
1880 # Search the same directories that the installed compiler will
1881 # search. Else we may find the wrong linker and lose. If we
1882 # do not find a suitable linker binary, then try the user's
1885 # Also note we have to check MD_EXEC_PREFIX before checking the
1886 # user's path. Unfortunately, there is no good way to get at the
1887 # value of MD_EXEC_PREFIX here. So we do a brute force search
1888 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1889 # to be fixed as part of the make/configure rewrite too.
1891 if test "x$exec_prefix" = xNONE; then
1892 if test "x$prefix" = xNONE; then
1893 test_prefix=/usr/local
1898 test_prefix=$exec_prefix
1901 # If the loop below does not find an linker, then use whatever
1902 # one we can find in the users's path.
1904 if test "x$program_prefix" != xNONE; then
1905 gcc_cv_ld=${program_prefix}ld$host_exeext
1907 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$host_exeext
1910 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1911 $test_prefix/libexec/gcc/$target_noncanonical \
1912 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1913 /usr/lib/gcc/$target_noncanonical \
1914 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1915 $test_prefix/$target_noncanonical/bin"
1917 if test x$host = x$target; then
1918 test_dirs="$test_dirs \
1923 /bsd43/usr/lib/cmplrs/cc \
1924 /usr/cross64/usr/bin \
1925 /usr/lib/cmplrs/cc \
1926 /sysv/usr/lib/cmplrs/cc \
1927 /svr4/usr/lib/cmplrs/cc \
1931 for dir in $test_dirs; do
1932 if test -x $dir/ld$host_exeext; then
1933 gcc_cv_ld=$dir/ld$host_exeext
1940 AC_MSG_RESULT("newly built ld")
1943 AC_MSG_RESULT($gcc_cv_ld)
1947 # Figure out what nm we will be using.
1948 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1949 AC_MSG_CHECKING(what nm to use)
1951 if test -x nm$host_exeext; then
1952 gcc_cv_nm=./nm$host_exeext
1953 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1954 && test -f ../binutils/Makefile; then
1955 # Single tree build which includes binutils.
1957 gcc_cv_nm=./nm$host_exeext
1958 rm -f nm$host_exeext
1959 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1960 elif test "x$program_prefix" != xNONE; then
1961 gcc_cv_nm=${program_prefix}nm$host_exeext
1963 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$host_exeext
1966 yes) AC_MSG_RESULT("newly built nm") ;;
1967 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1970 # Figure out what objdump we will be using.
1971 AC_MSG_CHECKING(what objdump to use)
1973 if test -x objdump$host_exeext; then
1974 gcc_cv_objdump=./objdump$host_exeext
1975 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1976 && test -f ../binutils/Makefile; then
1977 # Single tree build which includes binutils.
1979 gcc_cv_objdump=./objdump$host_exeext
1980 rm -f objdump$host_exeext
1981 $symbolic_link ../binutils/objdump$host_exeext \
1982 objdump$host_exeext 2>/dev/null
1983 elif test "x$program_prefix" != xNONE; then
1984 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1986 gcc_cv_objdump=`echo objdump | \
1987 sed "${program_transform_name}"`$host_exeext
1989 case $in_tree_objdump in
1990 yes) AC_MSG_RESULT("newly built objdump") ;;
1991 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1994 # Figure out what assembler alignment features are present.
1995 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1999 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
2000 [Define if your assembler supports .balign and .p2align.])])
2002 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
2005 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
2006 [Define if your assembler supports specifying the maximum number
2007 of bytes to skip when using the GAS .p2align command.])])
2009 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
2011 [conftest_label1: .word 0
2013 conftest_label2: .word 0
2015 [if test x$gcc_cv_nm != x; then
2016 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
2017 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
2018 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
2020 else gcc_cv_as_subsection_m1=yes
2022 rm -f conftest.nm1 conftest.nm2
2024 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2025 [Define if your assembler supports .subsection and .subsection -1 starts
2026 emitting at the beginning of your section.])])
2028 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2031 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2033 # .hidden needs to be supported in both the assembler and the linker,
2034 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2035 # This is irritatingly difficult to feature test for; we have to check the
2036 # date string after the version number. If we've got an in-tree
2037 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2039 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2040 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2045 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2046 [if test $in_tree_ld = yes ; then
2048 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2049 && test $in_tree_ld_is_elf = yes; then
2050 gcc_cv_ld_hidden=yes
2053 gcc_cv_ld_hidden=yes
2054 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2055 if echo "$ld_ver" | grep GNU > /dev/null; then
2057 ld_vers=`echo $ld_ver | sed -n \
2058 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2059 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2060 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2061 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2062 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2063 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2064 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2065 if test 0"$ld_date" -lt 20020404; then
2066 if test -n "$ld_date"; then
2067 # If there was date string, but was earlier than 2002-04-04, fail
2069 elif test -z "$ld_vers"; then
2070 # If there was no date string nor ld version number, something is wrong
2073 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2074 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2075 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2076 test -z "$ld_vers_patch" && ld_vers_patch=0
2077 if test "$ld_vers_major" -lt 2; then
2079 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2080 gcc_cv_ld_hidden="no"
2081 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2089 hppa64*-*-hpux* | ia64*-*-hpux*)
2090 gcc_cv_ld_hidden=yes
2098 libgcc_visibility=no
2099 AC_SUBST(libgcc_visibility)
2100 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2101 libgcc_visibility=yes
2102 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2103 [Define if your assembler and linker support .hidden.])
2106 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2107 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2115 [# GAS versions before 2.11 do not support uleb128,
2116 # despite appearing to.
2117 # ??? There exists an elf-specific test that will crash
2118 # the assembler. Perhaps it's better to figure out whether
2119 # arbitrary sections are supported and try the test.
2120 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2121 if echo "$as_ver" | grep GNU > /dev/null; then
2123 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2124 as_major=`echo $as_ver | sed 's/\..*//'`
2125 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2127 if test $as_major -eq 2 && test $as_minor -lt 11
2129 else gcc_cv_as_leb128=yes
2132 [AC_DEFINE(HAVE_AS_LEB128, 1,
2133 [Define if your assembler supports .sleb128 and .uleb128.])])
2135 # GAS versions up to and including 2.11.0 may mis-optimize
2137 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2145 .section .eh_frame,"aw",@progbits
2147 .4byte .LECIE1-.LSCIE1
2161 .4byte .LEFDE1-.LASFDE1
2163 .4byte .LASFDE1-__FRAME_BEGIN__
2171 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2172 cat > conftest.lit <<EOF
2173 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2174 0010 01000000 12000000 18000000 00000000 ................
2175 0020 08000000 04080000 0044 .........D @&t@
2177 cat > conftest.big <<EOF
2178 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2179 0010 00000001 00000012 00000018 00000000 ................
2180 0020 00000008 04000000 0844 .........D @&t@
2182 # If the assembler didn't choke, and we can objdump,
2183 # and we got the correct data, then succeed.
2184 if test x$gcc_cv_objdump != x \
2185 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2186 | tail -3 > conftest.got \
2187 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2188 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2190 gcc_cv_as_eh_frame=yes
2191 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2192 gcc_cv_as_eh_frame=buggy
2194 # Uh oh, what do we do now?
2195 gcc_cv_as_eh_frame=no
2198 if test $gcc_cv_as_eh_frame = buggy; then
2199 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2200 [Define if your assembler mis-optimizes .eh_frame data.])
2203 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2204 [elf,2,12,0], [--fatal-warnings],
2205 [.section .rodata.str, "aMS", @progbits, 1])
2206 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2207 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2208 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2210 # Thread-local storage - the check is heavily parametrized.
2219 .section ".tdata","awT",@progbits
2222 ldq $27,__tls_get_addr($29) !literal!1
2223 lda $16,foo($29) !tlsgd!1
2224 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2225 ldq $27,__tls_get_addr($29) !literal!2
2226 lda $16,foo($29) !tlsldm!2
2227 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2228 ldq $1,foo($29) !gotdtprel
2229 ldah $2,foo($29) !dtprelhi
2230 lda $3,foo($2) !dtprello
2231 lda $4,foo($29) !dtprel
2232 ldq $1,foo($29) !gottprel
2233 ldah $2,foo($29) !tprelhi
2234 lda $3,foo($2) !tprello
2235 lda $4,foo($29) !tprel'
2238 tls_as_opt=--fatal-warnings
2242 .section ".tdata","awT",@progbits
2246 leal foo@TLSGD(,%ebx,1), %eax
2247 leal foo@TLSLDM(%ebx), %eax
2248 leal foo@DTPOFF(%eax), %edx
2249 movl foo@GOTTPOFF(%ebx), %eax
2250 subl foo@GOTTPOFF(%ebx), %eax
2251 addl foo@GOTNTPOFF(%ebx), %eax
2252 movl foo@INDNTPOFF, %eax
2253 movl $foo@TPOFF, %eax
2254 subl $foo@TPOFF, %eax
2255 leal foo@NTPOFF(%ecx), %eax'
2258 tls_as_opt=--fatal-warnings
2262 .section ".tdata","awT",@progbits
2266 leaq foo@TLSGD(%rip), %rdi
2267 leaq foo@TLSLD(%rip), %rdi
2268 leaq foo@DTPOFF(%rax), %rdx
2269 movq foo@GOTTPOFF(%rip), %rax
2270 movq $foo@TPOFF, %rax'
2273 tls_as_opt=--fatal-warnings
2277 .section ".tdata","awT",@progbits
2280 addl r16 = @ltoff(@dtpmod(foo#)), gp
2281 addl r17 = @ltoff(@dtprel(foo#)), gp
2282 addl r18 = @ltoff(@tprel(foo#)), gp
2283 addl r19 = @dtprel(foo#), gp
2284 adds r21 = @dtprel(foo#), r13
2285 movl r23 = @dtprel(foo#)
2286 addl r20 = @tprel(foo#), gp
2287 adds r22 = @tprel(foo#), r13
2288 movl r24 = @tprel(foo#)'
2291 tls_as_opt=--fatal-warnings
2295 .section ".tdata","awT",@progbits
2303 addi 3,31,ld0@got@tlsgd
2305 addi 3,31,x1@got@tlsld
2308 addis 9,3,x2@dtprel@ha
2309 addi 9,9,x2@dtprel@l
2310 lwz 9,x3@got@tprel(31)
2313 addis 9,2,x2@tprel@ha
2314 addi 9,9,x2@tprel@l'
2317 tls_as_opt="-a32 --fatal-warnings"
2321 .section ".tdata","awT",@progbits
2329 addi 3,2,ld0@got@tlsgd
2335 addi 3,2,x1@got@tlsld
2341 addis 9,3,x2@dtprel@ha
2342 addi 9,9,x2@dtprel@l
2345 ld 9,x3@got@dtprel(2)
2351 tls_as_opt="-a64 --fatal-warnings"
2355 .section ".tdata","awT",@progbits
2364 l %r1,foo@GOTNTPOFF(%r12)
2365 l %r1,0(%r1):tls_load:foo
2366 bas %r14,0(%r1,%r13):tls_gdcall:foo
2367 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2370 tls_as_opt="-m31 --fatal-warnings"
2374 .section ".tdata","awT",@progbits
2382 lg %r1,foo@GOTNTPOFF(%r12)
2383 larl %r1,foo@INDNTPOFF
2384 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2385 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2388 tls_as_opt="-m64 -Aesame --fatal-warnings"
2390 sh-*-* | sh[34]-*-*)
2392 .section ".tdata","awT",@progbits
2402 tls_as_opt=--fatal-warnings
2406 sparc*-sun-solaris2.*)
2413 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2415 .section ".tdata",#alloc,#write,#tls
2418 sethi %tgd_hi22(foo), %o0
2419 add %o0, %tgd_lo10(foo), %o1
2420 add %l7, %o1, %o0, %tgd_add(foo)
2421 call __tls_get_addr, %tgd_call(foo)
2422 sethi %tldm_hi22(foo), %l1
2423 add %l1, %tldm_lo10(foo), %l2
2424 add %l7, %l2, %o0, %tldm_add(foo)
2425 call __tls_get_addr, %tldm_call(foo)
2426 sethi %tldo_hix22(foo), %l3
2427 xor %l3, %tldo_lox10(foo), %l4
2428 add %o0, %l4, %l5, %tldo_add(foo)
2429 sethi %tie_hi22(foo), %o3
2430 add %o3, %tie_lo10(foo), %o3
2431 ld [%l7 + %o3], %o2, %tie_ld(foo)
2432 add %g7, %o2, %o4, %tie_add(foo)
2433 sethi %tle_hix22(foo), %l1
2434 xor %l1, %tle_lox10(foo), %o5
2435 ld [%g7 + %o5], %o1'
2440 .section ".tdata","awT",@progbits
2443 sethi %tgd_hi22(foo), %o0
2444 add %o0, %tgd_lo10(foo), %o1
2445 add %l7, %o1, %o0, %tgd_add(foo)
2446 call __tls_get_addr, %tgd_call(foo)
2447 sethi %tldm_hi22(foo), %l1
2448 add %l1, %tldm_lo10(foo), %l2
2449 add %l7, %l2, %o0, %tldm_add(foo)
2450 call __tls_get_addr, %tldm_call(foo)
2451 sethi %tldo_hix22(foo), %l3
2452 xor %l3, %tldo_lox10(foo), %l4
2453 add %o0, %l4, %l5, %tldo_add(foo)
2454 sethi %tie_hi22(foo), %o3
2455 add %o3, %tie_lo10(foo), %o3
2456 ld [%l7 + %o3], %o2, %tie_ld(foo)
2457 add %g7, %o2, %o4, %tie_add(foo)
2458 sethi %tle_hix22(foo), %l1
2459 xor %l1, %tle_lox10(foo), %o5
2460 ld [%g7 + %o5], %o1'
2463 tls_as_opt="-32 --fatal-warnings"
2468 if test -z "$tls_first_major"; then
2469 : # If we don't have a check, assume no support.
2471 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2472 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2473 [AC_DEFINE(HAVE_AS_TLS, 1,
2474 [Define if your assembler supports thread-local storage.])])
2477 # Target-specific assembler checks.
2479 if test x"$demangler_in_ld" = xyes; then
2480 AC_MSG_CHECKING(linker --demangle support)
2481 gcc_cv_ld_demangle=no
2482 if test $in_tree_ld = yes; then
2483 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2484 gcc_cv_ld_demangle=yes
2486 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2487 # Check if the GNU linker supports --demangle option
2488 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2489 gcc_cv_ld_demangle=yes
2492 if test x"$gcc_cv_ld_demangle" = xyes; then
2493 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2494 [Define if your linker supports --demangle option.])
2496 AC_MSG_RESULT($gcc_cv_ld_demangle)
2500 # All TARGET_ABI_OSF targets.
2501 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2502 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2503 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2506 extbl $3, $2, $3 !lituse_bytoff!1
2507 ldq $2, a($29) !literal!1
2508 ldq $4, b($29) !literal!2
2509 ldq_u $3, 0($2) !lituse_base!1
2510 ldq $27, f($29) !literal!5
2511 jsr $26, ($27), f !lituse_jsr!5
2512 ldah $29, 0($26) !gpdisp!3
2513 lda $0, c($29) !gprel
2514 ldah $1, d($29) !gprelhigh
2515 lda $1, d($1) !gprellow
2516 lda $29, 0($29) !gpdisp!3],,
2517 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2518 [Define if your assembler supports explicit relocations.])])
2522 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2523 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2524 [-no-mul-bug-abort], [.text],,
2525 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2526 [Define if your assembler supports the -no-mul-bug-abort option.])])
2530 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2531 [.register %g2, #scratch],,
2532 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2533 [Define if your assembler supports .register.])])
2535 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2537 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2538 [Define if your assembler supports -relax option.])])
2540 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2541 gcc_cv_as_sparc_ua_pcrel,,
2549 .uaword %r_disp32(foo)],
2550 [if test x$gcc_cv_ld != x \
2551 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2552 gcc_cv_as_sparc_ua_pcrel=yes
2555 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2556 [Define if your assembler and linker support unaligned PC relative relocs.])
2558 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2559 gcc_cv_as_sparc_ua_pcrel_hidden,,
2564 .uaword %r_disp32(foo)
2565 .byte 0x32, 0x33, 0x34
2570 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2571 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2572 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2573 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2574 if $gcc_cv_objdump -R conftest 2> /dev/null \
2575 | grep 'DISP32' > /dev/null 2>&1; then
2578 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2582 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2583 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2584 ]) # unaligned pcrel relocs
2586 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2587 gcc_cv_as_sparc_offsetable_lo10,,
2590 or %g1, %lo(ab) + 12, %g1
2591 or %g1, %lo(ab + 12), %g1],
2592 [if test x$gcc_cv_objdump != x \
2593 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2594 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2595 gcc_cv_as_offsetable_lo10=yes
2597 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2598 [Define if your assembler supports offsetable %lo().])])
2602 i[34567]86-*-* | x86_64-*-*)
2605 cygwin* | pe | mingw32*)
2606 # Used for DWARF 2 in PE
2607 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2608 gcc_cv_as_ix86_pe_secrel32,
2614 [if test x$gcc_cv_ld != x \
2615 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2616 gcc_cv_as_ix86_pe_secrel32=yes
2619 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2620 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2624 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2625 gcc_cv_as_ix86_filds_fists,
2626 [2,9,0],, [filds mem; fists mem],,
2627 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2628 [Define if your assembler uses the new HImode fild and fist notation.])])
2630 gcc_GAS_CHECK_FEATURE([cmov syntax],
2631 gcc_cv_as_ix86_cmov_sun_syntax,,,
2632 [cmovl.l %edx, %eax],,
2633 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2634 [Define if your assembler supports the Sun syntax for cmov.])])
2636 # This one is used unconditionally by i386.[ch]; it is to be defined
2637 # to 1 if the feature is present, 0 otherwise.
2638 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2639 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2645 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2646 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2647 [Define true if the assembler supports '.long foo@GOTOFF'.])
2651 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2652 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2654 addl r15 = @ltoffx(x#), gp
2656 ld8.mov r16 = [[r15]], x#],,
2657 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2658 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2664 *-*-aix*) conftest_s=' .csect .text[[PR]]
2666 *-*-darwin*) conftest_s=' .text
2668 *) conftest_s=' .text
2672 gcc_GAS_CHECK_FEATURE([mfcr field support],
2673 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2675 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2676 [Define if your assembler supports mfcr field.])])
2680 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2681 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2682 [ lw $4,%gp_rel(foo)($4)],,
2683 [if test x$target_cpu_default = x
2684 then target_cpu_default=MASK_EXPLICIT_RELOCS
2685 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2690 # ??? Not all targets support dwarf2 debug_line, even within a version
2691 # of gas. Moreover, we need to emit a valid instruction to trigger any
2692 # info to the output file. So, as supported targets are added to gas 2.11,
2693 # add some instruction here to (also) show we expect this might work.
2694 # ??? Once 2.11 is released, probably need to add first known working
2695 # version to the per-target configury.
2697 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2698 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2699 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2702 ia64*-*-* | s390*-*-*)
2709 if test x"$insn" != x; then
2711 .file 1 \"conftest.s\"
2714 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2715 gcc_cv_as_dwarf2_debug_line,
2716 [elf,2,11,0],, [$conftest_s],
2717 [# ??? This fails with non-gnu grep. Maybe use objdump?
2718 if grep debug_line conftest.o > /dev/null 2>&1; then
2719 gcc_cv_as_dwarf2_debug_line=yes
2722 # The .debug_line file table must be in the exact order that
2723 # we specified the files, since these indices are also used
2724 # by DW_AT_decl_file. Approximate this test by testing if
2725 # the assembler bitches if the same index is assigned twice.
2726 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2727 gcc_cv_as_dwarf2_file_buggy,,,
2731 if test $gcc_cv_as_dwarf2_debug_line = yes \
2732 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2733 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2734 [Define if your assembler supports dwarf2 .file/.loc directives,
2735 and preserves file table indices exactly as given.])
2738 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2739 gcc_cv_as_gdwarf2_flag,
2740 [elf,2,11,0], [--gdwarf2], [$insn],,
2741 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2742 [Define if your assembler supports the --gdwarf2 option.])])
2744 gcc_GAS_CHECK_FEATURE([--gstabs option],
2745 gcc_cv_as_gstabs_flag,
2746 [elf,2,11,0], [--gstabs], [$insn],
2747 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2748 # and warns about it, but still exits successfully. So check for
2750 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2752 else gcc_cv_as_gstabs_flag=yes
2754 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2755 [Define if your assembler supports the --gstabs option.])])
2758 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2759 gcc_cv_ld_ro_rw_mix=unknown
2760 if test $in_tree_ld = yes ; then
2761 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2762 && test $in_tree_ld_is_elf = yes; then
2763 gcc_cv_ld_ro_rw_mix=read-write
2765 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2766 echo '.section myfoosect, "a"' > conftest1.s
2767 echo '.section myfoosect, "aw"' > conftest2.s
2768 echo '.byte 1' >> conftest2.s
2769 echo '.section myfoosect, "a"' > conftest3.s
2770 echo '.byte 0' >> conftest3.s
2771 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2772 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2773 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2774 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2775 conftest2.o conftest3.o > /dev/null 2>&1; then
2776 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2777 | sed -e '/myfoosect/!d' -e N`
2778 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2779 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2780 gcc_cv_ld_ro_rw_mix=read-only
2782 gcc_cv_ld_ro_rw_mix=read-write
2787 rm -f conftest.* conftest[123].*
2790 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2791 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2792 [Define if your linker links a mix of read-only
2793 and read-write sections into a read-write section.])
2795 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2797 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2798 gcc_cv_ld_eh_frame_hdr=no
2799 if test $in_tree_ld = yes ; then
2800 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2801 && test $in_tree_ld_is_elf = yes; then
2802 gcc_cv_ld_eh_frame_hdr=yes
2804 elif test x$gcc_cv_ld != x; then
2805 # Check if linker supports --eh-frame-hdr option
2806 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2807 gcc_cv_ld_eh_frame_hdr=yes
2810 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2811 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2812 [Define if your linker supports --eh-frame-hdr option.])
2814 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2816 AC_MSG_CHECKING(linker position independent executable support)
2818 if test $in_tree_ld = yes ; then
2819 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2820 && test $in_tree_ld_is_elf = yes; then
2823 elif test x$gcc_cv_ld != x; then
2824 # Check if linker supports -pie option
2825 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2829 if test x"$gcc_cv_ld_pie" = xyes; then
2830 AC_DEFINE(HAVE_LD_PIE, 1,
2831 [Define if your linker supports -pie option.])
2833 AC_MSG_RESULT($gcc_cv_ld_pie)
2839 AC_CACHE_CHECK(linker --as-needed support,
2840 gcc_cv_ld_as_needed,
2841 [gcc_cv_ld_as_needed=no
2842 if test $in_tree_ld = yes ; then
2843 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2844 && test $in_tree_ld_is_elf = yes; then
2845 gcc_cv_ld_as_needed=yes
2847 elif test x$gcc_cv_ld != x; then
2848 # Check if linker supports --as-needed and --no-as-needed options
2849 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2850 gcc_cv_ld_as_needed=yes
2854 if test x"$gcc_cv_ld_as_needed" = xyes; then
2855 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2856 [Define if your linker supports --as-needed and --no-as-needed options.])
2859 if test x$with_sysroot = x && test x$host = x$target \
2860 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2861 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2862 [Define to PREFIX/include if cpp should also search that directory.])
2865 # Find out what GC implementation we want, or may, use.
2867 [ --with-gc={page,zone} choose the garbage collection mechanism to use
2874 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2879 echo "Using $GGC for garbage collection."
2881 # Use the system's zlib library.
2883 zlibinc="-I\$(srcdir)/../zlib"
2884 AC_ARG_WITH(system-zlib,
2885 [ --with-system-zlib use installed libz],
2892 dnl Very limited version of automake's enable-maintainer-mode
2894 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2895 dnl maintainer-mode is disabled by default
2896 AC_ARG_ENABLE(maintainer-mode,
2897 [ --enable-maintainer-mode
2898 enable make rules and dependencies not useful
2899 (and sometimes confusing) to the casual installer],
2900 maintainer_mode=$enableval,
2903 AC_MSG_RESULT($maintainer_mode)
2905 if test "$maintainer_mode" = "yes"; then
2912 AC_MSG_CHECKING([whether to use libbanshee for points-to alias analysis])
2913 AC_ARG_WITH(libbanshee,
2914 [ --with-libbanshee enable libbanshee],
2915 libbanshee="$with_libbanshee",
2918 if test x"$libbanshee" = xyes; then
2919 BANSHEELIB="../libbanshee/points-to/libandersen.a ../libbanshee/engine/libbansheeengine.a ../libbanshee/libcompat/libbansheecompat.a "
2920 BANSHEEINC="-I\$(srcdir)/../libbanshee/libcompat -I\$(srcdir)/../libbanshee -I\$(srcdir)/../libbanshee/points-to"
2921 ANDER="tree-alias-ander.o"
2922 AC_DEFINE(HAVE_BANSHEE, 1, [Define if BANSHEE is available])
2928 AC_MSG_RESULT($with_libbanshee)
2931 AC_SUBST(BANSHEEINC)
2932 AC_SUBST(BANSHEELIB)
2938 # Make empty files to contain the specs and options for each language.
2939 # Then add #include lines to for a compiler that has specs and/or options.
2944 for subdir in . $subdirs
2946 if test -f $srcdir/$subdir/lang.opt; then
2947 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2949 if test -f $srcdir/$subdir/lang-specs.h; then
2950 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2952 if test -f $srcdir/$subdir/$subdir-tree.def; then
2953 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2957 # These (without "all_") are set in each config-lang.in.
2958 # `language' must be a single word so is spelled singularly.
2963 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders libada-mk'
2964 # List of language makefile fragments.
2966 # List of language subdirectory makefiles. Deprecated.
2968 # Files for gengtype
2969 all_gtfiles="$target_gtfiles"
2970 # Files for gengtype with language
2971 all_gtfiles_files_langs=
2972 all_gtfiles_files_files=
2974 # Add the language fragments.
2975 # Languages are added via two mechanisms. Some information must be
2976 # recorded in makefile variables, these are defined in config-lang.in.
2977 # We accumulate them and plug them into the main Makefile.
2978 # The other mechanism is a set of hooks for each of the main targets
2979 # like `clean', `install', etc.
2981 language_hooks="Make-hooks"
2991 . ${srcdir}/$s/config-lang.in
2992 if test "x$language" = x
2994 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2997 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2998 if test -f ${srcdir}/$s/Makefile.in
2999 then all_lang_makefiles="$s/Makefile"
3001 all_languages="$all_languages $language"
3002 if test "x$boot_language" = xyes
3004 all_boot_languages="$all_boot_languages $language"
3006 all_compilers="$all_compilers $compilers"
3007 all_stagestuff="$all_stagestuff $stagestuff"
3008 all_outputs="$all_outputs $outputs"
3009 all_gtfiles="$all_gtfiles $gtfiles"
3012 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3013 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3017 # Pick up gtfiles for c
3020 . ${srcdir}/c-config-lang.in
3021 all_gtfiles="$all_gtfiles $gtfiles"
3024 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3025 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3029 for language in $all_languages
3031 check_languages="$check_languages check-$language"
3034 # We link each language in with a set of hooks, reached indirectly via
3039 target_list="all.build all.cross start.encap rest.encap tags \
3040 install-normal install-common install-man \
3041 uninstall info man srcextra srcman srcinfo \
3042 mostlyclean clean distclean maintainer-clean \
3043 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3044 for t in $target_list
3047 for lang in $all_languages
3051 echo "lang.$t: $x" >> Make-hooks
3060 echo "dir ." > .gdbinit
3061 echo "dir ${srcdir}" >> .gdbinit
3062 if test x$gdb_needs_out_file_path = xyes
3064 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3066 if test "x$subdirs" != x; then
3069 echo "dir ${srcdir}/$s" >> .gdbinit
3072 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3074 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3075 # absolute path for gcc_tooldir based on inserting the number of up-directory
3076 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3077 # $(libsubdir)/@(unlibsubdir) based path.
3078 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3079 # make and thus we'd get different behavior depending on where we built the
3081 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3082 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3084 changequote(<<, >>)dnl
3085 # An explanation of the sed strings:
3086 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3087 # -e 's|/$||' match a trailing forward slash and eliminates it
3088 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3089 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3091 # (*) Note this pattern overwrites the first character of the string
3092 # with a forward slash if one is not already present. This is not a
3093 # problem because the exact names of the sub-directories concerned is
3094 # unimportant, just the number of them matters.
3096 # The practical upshot of these patterns is like this:
3098 # prefix exec_prefix result
3099 # ------ ----------- ------
3101 # /foo/ /foo/bar ../
3102 # /foo /foo/bar/ ../
3103 # /foo/ /foo/bar/ ../
3104 # /foo /foo/bar/ugg ../../
3107 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3108 changequote([, ])dnl
3110 AC_SUBST(gcc_tooldir)
3113 # Find a directory in which to install a shared libgcc.
3115 AC_ARG_ENABLE(version-specific-runtime-libs,
3116 [ --enable-version-specific-runtime-libs
3117 specify that runtime libraries should be
3118 installed in a compiler-specific directory])
3120 AC_ARG_WITH(slibdir,
3121 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3122 slibdir="$with_slibdir",
3123 if test "${enable_version_specific_runtime_libs+set}" = set; then
3124 slibdir='$(libsubdir)'
3125 elif test "$host" != "$target"; then
3126 slibdir='$(build_tooldir)/lib'
3132 objdir=`${PWDCMD-pwd}`
3135 # Substitute configuration variables
3138 AC_SUBST(all_boot_languages)
3139 AC_SUBST(all_compilers)
3140 AC_SUBST(all_gtfiles)
3141 AC_SUBST(all_gtfiles_files_langs)
3142 AC_SUBST(all_gtfiles_files_files)
3143 AC_SUBST(all_lang_makefrags)
3144 AC_SUBST(all_lang_makefiles)
3145 AC_SUBST(all_languages)
3146 AC_SUBST(all_stagestuff)
3147 AC_SUBST(build_exeext)
3148 AC_SUBST(build_install_headers_dir)
3149 AC_SUBST(build_xm_file_list)
3150 AC_SUBST(build_xm_include_list)
3151 AC_SUBST(build_xm_defines)
3152 AC_SUBST(check_languages)
3153 AC_SUBST(cc_set_by_configure)
3154 AC_SUBST(quoted_cc_set_by_configure)
3155 AC_SUBST(cpp_install_dir)
3156 AC_SUBST(xmake_file)
3157 AC_SUBST(tmake_file)
3158 AC_SUBST(extra_gcc_objs)
3159 AC_SUBST(extra_headers_list)
3160 AC_SUBST(extra_objs)
3161 AC_SUBST(extra_parts)
3162 AC_SUBST(extra_passes)
3163 AC_SUBST(extra_programs)
3164 AC_SUBST(float_h_file)
3165 AC_SUBST(gcc_config_arguments)
3166 AC_SUBST(gcc_gxx_include_dir)
3167 AC_SUBST(libstdcxx_incdir)
3168 AC_SUBST(gcc_version)
3169 AC_SUBST(gcc_version_full)
3170 AC_SUBST(gcc_version_trigger)
3171 AC_SUBST(host_exeext)
3172 AC_SUBST(host_xm_file_list)
3173 AC_SUBST(host_xm_include_list)
3174 AC_SUBST(host_xm_defines)
3175 AC_SUBST(out_host_hook_obj)
3177 AC_SUBST(lang_opt_files)
3178 AC_SUBST(lang_specs_files)
3179 AC_SUBST(lang_tree_files)
3180 AC_SUBST(local_prefix)
3182 AC_SUBST(objc_boehm_gc)
3184 AC_SUBST(out_object_file)
3185 AC_SUBST(stage_prefix_set_by_configure)
3186 AC_SUBST(quoted_stage_prefix_set_by_configure)
3187 AC_SUBST(symbolic_link)
3188 AC_SUBST(thread_file)
3189 AC_SUBST(tm_file_list)
3190 AC_SUBST(tm_include_list)
3191 AC_SUBST(tm_defines)
3192 AC_SUBST(tm_p_file_list)
3193 AC_SUBST(tm_p_include_list)
3194 AC_SUBST(xm_file_list)
3195 AC_SUBST(xm_include_list)
3196 AC_SUBST(xm_defines)
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'