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$,\1,'`" ;;
721 # -------------------------
722 # Checks for other programs
723 # -------------------------
727 # Find some useful tools
729 # We need awk to create options.c and options.h.
730 # Bail out if it's missing.
732 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
740 # By default, the Darwin ranlib will not treat common symbols as
741 # definitions when building the archive table of contents. Other
742 # ranlibs do that; pass an option to the Darwin ranlib that makes
743 # it behave similarly.
749 AC_SUBST(ranlib_flags)
753 # See if cmp has --ignore-initial.
754 gcc_AC_PROG_CMP_IGNORE_INITIAL
756 # See if we have the mktemp command.
757 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
759 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
761 # See if makeinfo has been installed and is modern enough
762 # that we can use it.
763 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
764 [GNU texinfo.* \([0-9][0-9.]*\)],
766 if test $gcc_cv_prog_makeinfo_modern = no; then
767 MAKEINFO="$MISSING makeinfo"
769 *** Makeinfo is missing or too old.
770 *** Info documentation will not be built.])
777 # Is pod2man recent enough to regenerate manpages?
778 AC_MSG_CHECKING([for recent Pod::Man])
779 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
781 GENERATED_MANPAGES=generated-manpages
786 AC_SUBST(GENERATED_MANPAGES)
789 dnl Don't use AC_PROG_LEX; we insist on flex.
790 dnl LEXLIB is not useful in gcc.
791 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
794 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
796 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
797 # check for build == host before using them.
800 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
801 && test -d ../binutils ; then
802 NM='$(objdir)/../binutils/nm-new'
804 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
808 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
809 && test -d ../binutils ; then
810 AR='$(objdir)/../binutils/ar'
812 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
816 # --------------------
817 # Checks for C headers
818 # --------------------
820 AC_MSG_CHECKING(for GNU C library)
821 AC_CACHE_VAL(gcc_cv_glibc,
823 [#include <features.h>],[
824 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
825 #error Not a GNU C library system
829 AC_MSG_RESULT($gcc_cv_glibc)
830 if test $gcc_cv_glibc = yes; then
831 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
834 # Need to reject headers which give warnings, so that the -Werror bootstrap
835 # works later. *sigh* This needs to come before all header checks.
842 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
843 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
844 sys/resource.h sys/param.h sys/times.h sys/stat.h \
845 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
847 # Check for thread headers.
848 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
849 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
851 # These tests can't be done till we know if we have limits.h.
859 # Stage specific cflags for build.
865 stage1_cflags="-Wa,-J"
871 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
872 # sources; use -no-cpp-precomp to get to GNU cpp.
873 # Apple's GCC has bugs in designated initializer handling, so disable
875 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
878 AC_SUBST(stage1_cflags)
880 # These libraries may be used by collect2.
881 # We may need a special search path to get them linked.
882 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
884 for libs in '' -lld -lmld \
885 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
886 '-L/usr/lib/cmplrs/cc3.11 -lmld'
889 AC_TRY_LINK_FUNC(ldopen,
890 [gcc_cv_collect2_libs="$libs"; break])
893 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
894 case $gcc_cv_collect2_libs in
896 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
898 AC_SUBST(COLLECT2_LIBS)
900 # When building Ada code on Alpha, we need exc_resume which is usually in
901 # -lexc. So test for it.
904 AC_SEARCH_LIBS(exc_resume, exc)
907 AC_SUBST(GNAT_LIBEXC)
909 # Some systems put ldexp and frexp in libm instead of libc; assume
910 # they're both in the same place. jcf-dump needs them.
913 AC_SEARCH_LIBS(ldexp, m)
918 # Use <inttypes.h> only if it exists,
919 # doesn't clash with <sys/types.h>, and declares intmax_t.
920 AC_MSG_CHECKING(for inttypes.h)
921 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
923 [#include <sys/types.h>
924 #include <inttypes.h>],
926 [gcc_cv_header_inttypes_h=yes],
927 gcc_cv_header_inttypes_h=no)])
928 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
929 if test $gcc_cv_header_inttypes_h = yes; then
930 AC_DEFINE(HAVE_INTTYPES_H, 1,
931 [Define if you have a working <inttypes.h> header file.])
934 dnl Disabled until we have a complete test for buggy enum bitfields.
935 dnl gcc_AC_C_ENUM_BF_UNSIGNED
937 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
938 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
939 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
940 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
943 if test x$ac_cv_func_mbstowcs = xyes; then
944 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
945 [ AC_TRY_RUN([#include <stdlib.h>
951 gcc_cv_func_mbstowcs_works=yes,
952 gcc_cv_func_mbstowcs_works=no,
953 gcc_cv_func_mbstowcs_works=yes)])
954 if test x$gcc_cv_func_mbstowcs_works = xyes; then
955 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
956 [Define this macro if mbstowcs does not crash when its
957 first argument is NULL.])
961 AC_CHECK_TYPE(ssize_t, int)
963 # Try to determine the array type of the second argument of getgroups
964 # for the target system (int or gid_t).
966 if test "${target}" = "${build}"; then
967 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
970 # This condition may need some tweaking. It should include all
971 # targets where the array type of the second argument of getgroups
972 # is int and the type of gid_t is not equivalent to int.
973 *-*-sunos* | *-*-ultrix*)
974 TARGET_GETGROUPS_T=int
977 TARGET_GETGROUPS_T=gid_t
981 AC_SUBST(TARGET_GETGROUPS_T)
983 gcc_AC_FUNC_PRINTF_PTR
984 gcc_AC_FUNC_MMAP_BLACKLIST
988 # Under VMS, vfork works very differently than on Unix. The standard test
989 # won't work, and it isn't easily adaptable. It makes more sense to
991 ac_cv_func_vfork_works=yes
997 # Until we have in-tree GNU iconv:
999 AC_SUBST(LIBICONV_DEP)
1003 # We will need to find libiberty.h and ansidecl.h
1004 saved_CFLAGS="$CFLAGS"
1005 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1006 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
1007 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
1008 fprintf_unlocked strstr errno snprintf vasprintf \
1009 malloc realloc calloc free basename getopt clock getpagesize, , ,[
1010 #include "ansidecl.h"
1011 #include "system.h"])
1013 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1014 #include "ansidecl.h"
1016 #ifdef HAVE_SYS_RESOURCE_H
1017 #include <sys/resource.h>
1022 #include "ansidecl.h"
1024 #ifdef HAVE_SYS_RESOURCE_H
1025 #include <sys/resource.h>
1027 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
1028 [Define to \`long' if <sys/resource.h> doesn't define.])])
1030 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1031 #include "ansidecl.h"
1038 gcc_AC_CHECK_DECLS(times, , ,[
1039 #include "ansidecl.h"
1041 #ifdef HAVE_SYS_TIMES_H
1042 #include <sys/times.h>
1046 # More time-related stuff.
1047 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1049 #include "ansidecl.h"
1051 #ifdef HAVE_SYS_TIMES_H
1052 #include <sys/times.h>
1054 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
1055 if test $ac_cv_struct_tms = yes; then
1056 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1057 [Define if <sys/times.h> defines struct tms.])
1060 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1061 # revisit after autoconf 2.50.
1062 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1064 #include "ansidecl.h"
1066 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
1067 if test $gcc_cv_type_clock_t = yes; then
1068 AC_DEFINE(HAVE_CLOCK_T, 1,
1069 [Define if <time.h> defines clock_t.])
1072 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1073 CFLAGS="$saved_CFLAGS"
1075 gcc_AC_INITFINI_ARRAY
1077 # mkdir takes a single argument on some systems.
1078 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1086 # With Setjmp/Longjmp based exception handling.
1087 AC_ARG_ENABLE(sjlj-exceptions,
1088 [ --enable-sjlj-exceptions
1089 arrange to use setjmp/longjmp exception handling],
1090 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1091 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1092 [Define 0/1 to force the choice for exception handling model.])])
1094 if test x$host = x$target; then
1095 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
1097 use_libunwind_default=no
1099 # Use libunwind based exception handling.
1100 AC_ARG_ENABLE(libunwind-exceptions,
1101 [ --enable-libunwind-exceptions force use libunwind for exceptions],
1102 use_libunwind_exceptions=$enableval,
1103 use_libunwind_exceptions=$use_libunwind_default)
1104 if test x"$use_libunwind_exceptions" = xyes; then
1105 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
1106 [Define if gcc should use -lunwind.])
1109 # --------------------------------------------------------
1110 # Build, host, and target specific configuration fragments
1111 # --------------------------------------------------------
1113 # Collect build-machine-specific information.
1114 . ${srcdir}/config.build
1116 # Collect host-machine-specific information.
1117 . ${srcdir}/config.host
1121 # Collect target-machine-specific information.
1122 . ${srcdir}/config.gcc
1124 extra_objs="${host_extra_objs} ${extra_objs}"
1125 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1127 # Default the target-machine variables that were not explicitly set.
1128 if test x"$tm_file" = x
1129 then tm_file=$cpu_type/$cpu_type.h; fi
1131 if test x"$extra_headers" = x
1132 then extra_headers=; fi
1134 if test x$md_file = x
1135 then md_file=$cpu_type/$cpu_type.md; fi
1137 if test x$out_file = x
1138 then out_file=$cpu_type/$cpu_type.c; fi
1140 if test x"$tmake_file" = x
1141 then tmake_file=$cpu_type/t-$cpu_type
1144 if test x"$dwarf2" = xyes
1145 then tm_file="$tm_file tm-dwarf2.h"
1148 # Say what files are being used for the output code and MD file.
1149 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1150 echo "Using \`$srcdir/config/$md_file' as machine description file."
1152 # If any of the xm_file variables contain nonexistent files, warn
1153 # about them and drop them.
1156 for x in $build_xm_file; do
1157 if test -f $srcdir/config/$x
1159 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1165 for x in $host_xm_file; do
1166 if test -f $srcdir/config/$x
1168 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1174 for x in $xm_file; do
1175 if test -f $srcdir/config/$x
1177 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1183 for f in $tm_file; do
1186 if test $count = ax; then
1187 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1189 echo "Using the following target machine macro files:"
1190 for f in $tm_file; do
1191 echo " $srcdir/config/$f"
1195 if test x$need_64bit_hwint = xyes; then
1196 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1197 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1201 for f in $host_xm_file; do
1204 if test $count = a; then
1206 elif test $count = ax; then
1207 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1209 echo "Using the following host machine macro files:"
1210 for f in $host_xm_file; do
1211 echo " $srcdir/config/$f"
1214 echo "Using ${out_host_hook_obj} for host machine hooks."
1216 if test "$host_xm_file" != "$build_xm_file"; then
1218 for f in $build_xm_file; do
1221 if test $count = a; then
1223 elif test $count = ax; then
1224 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1226 echo "Using the following build machine macro files:"
1227 for f in $build_xm_file; do
1228 echo " $srcdir/config/$f"
1237 # Check if a valid thread package
1238 case ${enable_threads} in
1241 target_thread_file='single'
1245 target_thread_file='single'
1247 aix | dce | gnat | irix | posix | rtems | \
1248 single | solaris | vxworks | win32 )
1249 target_thread_file=${enable_threads}
1252 echo "${enable_threads} is an unknown thread package" 1>&2
1257 if test x${thread_file} = x; then
1258 # No thread file set by target-specific clauses in config.gcc,
1259 # so use file chosen by default logic above
1260 thread_file=${target_thread_file}
1263 # Make gthr-default.h if we have a thread file.
1265 if test $thread_file != single; then
1266 rm -f gthr-default.h
1267 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1268 gthread_flags=-DHAVE_GTHR_DEFAULT
1270 AC_SUBST(gthread_flags)
1276 if test x$enable___cxa_atexit = xyes || \
1277 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1278 AC_CHECK_FUNC(__cxa_atexit,
1279 [AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1280 [Define if you want to use __cxa_atexit, rather than atexit, to
1281 register C++ destructors for local statics and global objects.
1282 This is essential for fully standards-compliant handling of
1283 destructors, but requires __cxa_atexit in libc.])],
1284 echo "__cxa_atexit can't be enabled on this target")
1287 # Look for a file containing extra machine modes.
1288 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1289 extra_modes_file='$(srcdir)'/config/${extra_modes}
1290 AC_SUBST(extra_modes_file)
1291 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1292 [Define to the name of a file containing a list of extra machine modes
1293 for this architecture.])
1296 # auto-host.h is the file containing items generated by autoconf and is
1297 # the first file included by config.h.
1298 # If host=build, it is correct to have bconfig include auto-host.h
1299 # as well. If host!=build, we are in error and need to do more
1300 # work to find out the build config parameters.
1301 if test x$host = x$build
1303 build_auto=auto-host.h
1306 # We create a subdir, then run autoconf in the subdir.
1307 # To prevent recursion we set host and build for the new
1308 # invocation of configure to the build for this invocation
1315 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1316 *) realsrcdir=../${srcdir};;
1318 saved_CFLAGS="${CFLAGS}"
1319 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1320 ${realsrcdir}/configure \
1321 --enable-languages=${enable_languages-all} \
1322 --target=$target_alias --host=$build_alias --build=$build_alias
1323 CFLAGS="${saved_CFLAGS}"
1325 # We just finished tests for the build machine, so rename
1326 # the file auto-build.h in the gcc directory.
1327 mv auto-host.h ../auto-build.h
1330 build_auto=auto-build.h
1331 FORBUILD=../${build_subdir}
1335 tm_file="${tm_file} defaults.h"
1336 tm_p_file="${tm_p_file} tm-preds.h"
1337 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1338 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1339 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1340 # put this back in temporarily.
1341 xm_file="ansidecl.h ${xm_file}"
1347 # Get the version trigger filename from the toplevel
1348 if test "${with_gcc_version_trigger+set}" = set; then
1349 gcc_version_trigger=$with_gcc_version_trigger
1351 gcc_version_trigger=${srcdir}/version.c
1354 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1355 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1357 # Compile in configure arguments.
1358 if test -f configargs.h ; then
1359 # Being re-configured.
1360 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1361 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1363 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1366 # Double all backslashes and backslash all quotes to turn
1367 # gcc_config_arguments into a C string.
1368 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1369 $gcc_config_arguments
1371 gcc_config_arguments_str=`cat conftest.out`
1374 cat > configargs.h <<EOF
1375 /* Generated automatically. */
1376 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1377 static const char thread_model[] = "$thread_file";
1379 static const struct {
1380 const char *name, *value;
1381 } configure_default_options[] = $configure_default_options;
1385 # Internationalization
1387 VERSION="$gcc_version"
1388 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
1389 [The name of this program for internationalization purposes.])
1393 ZW_GNU_GETTEXT_SISTER_DIR
1395 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1396 # -liconv on the link line twice.
1397 case "$LIBINTL" in *$LIBICONV*)
1401 # Windows32 Registry support for specifying GCC installation paths.
1402 AC_ARG_ENABLE(win32-registry,
1403 [ --disable-win32-registry
1404 disable lookup of installation paths in the
1405 Registry on Windows hosts
1406 --enable-win32-registry enable registry lookup (default)
1407 --enable-win32-registry=KEY
1408 use KEY instead of GCC version as the last portion
1409 of the registry key],,)
1411 win32 | pe | cygwin* | mingw32* | uwin*)
1412 AC_MSG_CHECKING(whether windows registry support is requested)
1413 if test "x$enable_win32_registry" != xno; then
1414 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1415 [Define to 1 if installation paths should be looked up in Windows32
1416 Registry. Ignored on non windows32 hosts.])
1418 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1423 # Check if user specified a different registry key.
1424 case "x${enable_win32_registry}" in
1427 gcc_cv_win32_registry_key="$VERSION"
1430 # no registry lookup.
1431 gcc_cv_win32_registry_key=''
1434 # user-specified key.
1435 gcc_cv_win32_registry_key="$enable_win32_registry"
1439 if test "x$enable_win32_registry" != xno; then
1440 AC_MSG_CHECKING(registry key on windows hosts)
1441 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1442 [Define to be the last portion of registry key on windows hosts.])
1443 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1448 # Get an absolute path to the GCC top-level source directory
1449 holddir=`${PWDCMD-pwd}`
1451 topdir=`${PWDCMD-pwd}`
1454 # Conditionalize the makefile for this host machine.
1456 for f in ${host_xmake_file}
1458 if test -f ${srcdir}/config/$f
1460 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1464 # Conditionalize the makefile for this target machine.
1466 for f in ${tmake_file}
1468 if test -f ${srcdir}/config/$f
1470 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1473 tmake_file="${tmake_file_}"
1475 symbolic_link='ln -s'
1477 # If the host doesn't support symlinks, modify CC in
1478 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1479 # Otherwise, we can use "CC=$(CC)".
1481 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1483 cc_set_by_configure="\$(CC)"
1484 quoted_cc_set_by_configure="\$(CC)"
1485 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1486 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1489 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1491 symbolic_link="cp -p"
1495 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1496 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1497 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1498 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1502 out_object_file=`basename $out_file .c`.o
1506 for f in $tm_file; do
1509 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1510 tm_include_list="${tm_include_list} $f"
1513 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1514 tm_include_list="${tm_include_list} config/$f"
1521 for f in $tm_p_file; do
1524 tm_p_file_list="${tm_p_file_list} $f"
1525 tm_p_include_list="${tm_p_include_list} $f"
1528 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1529 tm_p_include_list="${tm_p_include_list} config/$f"
1535 for f in $xm_file; do
1538 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1539 xm_include_list="${xm_include_list} $f"
1542 xm_file_list="${xm_file_list} $f"
1543 xm_include_list="${xm_include_list} $f"
1546 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1547 xm_include_list="${xm_include_list} config/$f"
1553 host_xm_include_list=
1554 for f in $host_xm_file; do
1557 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1558 host_xm_include_list="${host_xm_include_list} $f"
1561 host_xm_file_list="${host_xm_file_list} $f"
1562 host_xm_include_list="${host_xm_include_list} $f"
1565 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1566 host_xm_include_list="${host_xm_include_list} config/$f"
1572 for f in $build_xm_file; do
1575 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1576 build_xm_include_list="${build_xm_include_list} $f"
1578 auto-build.h | auto-host.h )
1579 build_xm_file_list="${build_xm_file_list} $f"
1580 build_xm_include_list="${build_xm_include_list} $f"
1583 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1584 build_xm_include_list="${build_xm_include_list} config/$f"
1589 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1590 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1591 CROSS= AC_SUBST(CROSS)
1592 ALL=all.internal AC_SUBST(ALL)
1593 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1594 if test x$host != x$target
1596 CROSS="-DCROSS_COMPILE"
1598 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1599 case "$host","$target" in
1600 # Darwin crosses can use the host system's libraries and headers,
1601 # because of the fat library support. Of course, it must be the
1602 # same version of Darwin on both sides. Allow the user to
1603 # just say --target=foo-darwin without a version number to mean
1604 # "the version on this system".
1605 *-*-darwin*,*-*-darwin*)
1606 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1607 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1608 if test $hostos = $targetos -o $targetos = darwin ; then
1610 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1615 i?86-*-*,x86_64-*-* \
1616 | powerpc*-*-*,powerpc64*-*-*)
1617 CROSS="$CROSS -DNATIVE_CROSS" ;;
1619 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1620 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1621 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1624 # If this is a cross-compiler that does not
1625 # have its own set of headers then define
1628 # If this is using newlib, without having the headers available now,
1629 # then define inhibit_libc in LIBGCC2_CFLAGS.
1630 # This prevents libgcc2 from containing any code which requires libc
1633 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1634 test x$with_newlib = xyes ; } &&
1635 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1636 inhibit_libc=-Dinhibit_libc
1638 AC_SUBST(inhibit_libc)
1640 # When building gcc with a cross-compiler, we need to adjust things so
1641 # that the generator programs are still built with the native compiler.
1642 # Also, we cannot run fixincludes or fix-header.
1644 # These are the normal (build=host) settings:
1645 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1646 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1647 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1649 # Possibly disable fixproto, on a per-target basis.
1650 case ${use_fixproto} in
1655 STMP_FIXPROTO=stmp-fixproto
1658 AC_SUBST(STMP_FIXPROTO)
1660 # And these apply if build != host, or we are generating coverage data
1661 if test x$build != x$host || test "x$coverage_flags" != x
1663 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1665 if test "x$TARGET_SYSTEM_ROOT" = x; then
1671 # Expand extra_headers to include complete path.
1672 # This substitutes for lots of t-* files.
1674 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1675 for file in ${extra_headers} ; do
1676 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1679 # Define collect2 in Makefile.
1680 case $host_can_use_collect2 in
1682 *) collect2='collect2$(exeext)' ;;
1684 AC_SUBST([collect2])
1686 # Add a definition of USE_COLLECT2 if system wants one.
1687 case $use_collect2 in
1688 no) use_collect2= ;;
1691 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1692 xm_defines="${xm_defines} USE_COLLECT2"
1693 case $host_can_use_collect2 in
1695 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1701 # ---------------------------
1702 # Assembler & linker features
1703 # ---------------------------
1705 # Identify the assembler which will work hand-in-glove with the newly
1706 # built GCC, so that we can examine its features. This is the assembler
1707 # which will be driven by the driver program.
1709 # If build != host, and we aren't building gas in-tree, we identify a
1710 # build->target assembler and hope that it will have the same features
1711 # as the host->target assembler we'll be using.
1712 AC_MSG_CHECKING(what assembler to use)
1715 gcc_cv_gas_major_version=
1716 gcc_cv_gas_minor_version=
1717 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1718 if test -x "$DEFAULT_ASSEMBLER"; then
1719 gcc_cv_as="$DEFAULT_ASSEMBLER"
1720 elif test -x as$host_exeext; then
1721 # Build using assembler in the current directory.
1722 gcc_cv_as=./as$host_exeext
1723 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1724 && test -f ../gas/Makefile \
1725 && test x$build = x$host; then
1726 # Single tree build which includes gas. We want to prefer it
1727 # over whatever linker top-level may have detected, since
1728 # we'll use what we're building after installation anyway.
1730 _gcc_COMPUTE_GAS_VERSION
1731 rm -f as$host_exeext
1732 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1733 in_tree_gas_is_elf=no
1734 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1735 || (grep 'obj_format = multi' ../gas/Makefile \
1736 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1738 in_tree_gas_is_elf=yes
1740 m4_pattern_allow([AS_FOR_TARGET])dnl
1741 elif test -x "$AS_FOR_TARGET"; then
1742 gcc_cv_as="$AS_FOR_TARGET"
1743 elif test -x "$AS" && test x$host = x$target; then
1747 if test "x$gcc_cv_as" = x; then
1748 # Search the same directories that the installed compiler will
1749 # search. Else we may find the wrong assembler and lose. If we
1750 # do not find a suitable assembler binary, then try the user's
1753 # Also note we have to check MD_EXEC_PREFIX before checking the
1754 # user's path. Unfortunately, there is no good way to get at the
1755 # value of MD_EXEC_PREFIX here. So we do a brute force search
1756 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1757 # to be fixed as part of the make/configure rewrite too.
1759 if test "x$exec_prefix" = xNONE; then
1760 if test "x$prefix" = xNONE; then
1761 test_prefix=/usr/local
1766 test_prefix=$exec_prefix
1769 # If the loop below does not find an assembler, then use whatever
1770 # one we can find in the users's path.
1772 if test "x$program_prefix" != xNONE; then
1773 gcc_cv_as=${program_prefix}as$host_exeext
1775 gcc_cv_as=`echo as | sed "${program_transform_name}"`$host_exeext
1778 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1779 $test_prefix/libexec/gcc/$target_noncanonical \
1780 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1781 /usr/lib/gcc/$target_noncanonical \
1782 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1783 $test_prefix/$target_noncanonical/bin"
1785 if test x$host = x$target; then
1786 test_dirs="$test_dirs \
1791 /bsd43/usr/lib/cmplrs/cc \
1792 /usr/cross64/usr/bin \
1793 /usr/lib/cmplrs/cc \
1794 /sysv/usr/lib/cmplrs/cc \
1795 /svr4/usr/lib/cmplrs/cc \
1799 for dir in $test_dirs; do
1800 if test -x $dir/as$host_exeext; then
1801 gcc_cv_as=$dir/as$host_exeext
1806 case $in_tree_gas in
1808 AC_MSG_RESULT("newly built gas")
1811 AC_MSG_RESULT($gcc_cv_as)
1815 # Identify the linker which will work hand-in-glove with the newly
1816 # built GCC, so that we can examine its features. This is the linker
1817 # which will be driven by the driver program.
1819 # If build != host, and we aren't building gas in-tree, we identify a
1820 # build->target linker and hope that it will have the same features
1821 # as the host->target linker we'll be using.
1822 AC_MSG_CHECKING(what linker to use)
1825 gcc_cv_gld_major_version=
1826 gcc_cv_gld_minor_version=
1827 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1828 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1829 if test -x "$DEFAULT_LINKER"; then
1830 gcc_cv_ld="$DEFAULT_LINKER"
1831 elif test -x collect-ld$host_exeext; then
1832 # Build using linker in the current directory.
1833 gcc_cv_ld=./collect-ld$host_exeext
1834 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1835 && test -f ../ld/Makefile \
1836 && test x$build = x$host; then
1837 # Single tree build which includes ld. We want to prefer it
1838 # over whatever linker top-level may have detected, since
1839 # we'll use what we're building after installation anyway.
1841 in_tree_ld_is_elf=no
1842 if (grep 'EMUL = .*elf' ../ld/Makefile \
1843 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1844 in_tree_ld_is_elf=yes
1846 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
1849 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1851 if test x$gcc_cv_gld_version != x; then
1856 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1857 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1859 rm -f collect-ld$host_exeext
1860 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1862 elif test -x "$LD_FOR_TARGET"; then
1863 gcc_cv_ld="$LD_FOR_TARGET"
1864 elif test -x "$LD" && test x$host = x$target; then
1868 if test "x$gcc_cv_ld" = x; then
1869 # Search the same directories that the installed compiler will
1870 # search. Else we may find the wrong linker and lose. If we
1871 # do not find a suitable linker binary, then try the user's
1874 # Also note we have to check MD_EXEC_PREFIX before checking the
1875 # user's path. Unfortunately, there is no good way to get at the
1876 # value of MD_EXEC_PREFIX here. So we do a brute force search
1877 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1878 # to be fixed as part of the make/configure rewrite too.
1880 if test "x$exec_prefix" = xNONE; then
1881 if test "x$prefix" = xNONE; then
1882 test_prefix=/usr/local
1887 test_prefix=$exec_prefix
1890 # If the loop below does not find an linker, then use whatever
1891 # one we can find in the users's path.
1893 if test "x$program_prefix" != xNONE; then
1894 gcc_cv_ld=${program_prefix}ld$host_exeext
1896 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$host_exeext
1899 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1900 $test_prefix/libexec/gcc/$target_noncanonical \
1901 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1902 /usr/lib/gcc/$target_noncanonical \
1903 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1904 $test_prefix/$target_noncanonical/bin"
1906 if test x$host = x$target; then
1907 test_dirs="$test_dirs \
1912 /bsd43/usr/lib/cmplrs/cc \
1913 /usr/cross64/usr/bin \
1914 /usr/lib/cmplrs/cc \
1915 /sysv/usr/lib/cmplrs/cc \
1916 /svr4/usr/lib/cmplrs/cc \
1920 for dir in $test_dirs; do
1921 if test -x $dir/ld$host_exeext; then
1922 gcc_cv_ld=$dir/ld$host_exeext
1929 AC_MSG_RESULT("newly built ld")
1932 AC_MSG_RESULT($gcc_cv_ld)
1936 # Figure out what nm we will be using.
1937 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1938 AC_MSG_CHECKING(what nm to use)
1940 if test -x nm$host_exeext; then
1941 gcc_cv_nm=./nm$host_exeext
1942 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1943 && test -f ../binutils/Makefile; then
1944 # Single tree build which includes binutils.
1946 gcc_cv_nm=./nm$host_exeext
1947 rm -f nm$host_exeext
1948 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1949 elif test "x$program_prefix" != xNONE; then
1950 gcc_cv_nm=${program_prefix}nm$host_exeext
1952 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$host_exeext
1955 yes) AC_MSG_RESULT("newly built nm") ;;
1956 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1959 # Figure out what objdump we will be using.
1960 AC_MSG_CHECKING(what objdump to use)
1962 if test -x objdump$host_exeext; then
1963 gcc_cv_objdump=./objdump$host_exeext
1964 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1965 && test -f ../binutils/Makefile; then
1966 # Single tree build which includes binutils.
1968 gcc_cv_objdump=./objdump$host_exeext
1969 rm -f objdump$host_exeext
1970 $symbolic_link ../binutils/objdump$host_exeext \
1971 objdump$host_exeext 2>/dev/null
1972 elif test "x$program_prefix" != xNONE; then
1973 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1975 gcc_cv_objdump=`echo objdump | \
1976 sed "${program_transform_name}"`$host_exeext
1978 case $in_tree_objdump in
1979 yes) AC_MSG_RESULT("newly built objdump") ;;
1980 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1983 # Figure out what assembler alignment features are present.
1984 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1988 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1989 [Define if your assembler supports .balign and .p2align.])])
1991 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1994 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1995 [Define if your assembler supports specifying the maximum number
1996 of bytes to skip when using the GAS .p2align command.])])
1998 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
2000 [conftest_label1: .word 0
2002 conftest_label2: .word 0
2004 [if test x$gcc_cv_nm != x; then
2005 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
2006 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
2007 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
2009 else gcc_cv_as_subsection_m1=yes
2011 rm -f conftest.nm1 conftest.nm2
2013 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2014 [Define if your assembler supports .subsection and .subsection -1 starts
2015 emitting at the beginning of your section.])])
2017 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2020 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2022 # .hidden needs to be supported in both the assembler and the linker,
2023 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2024 # This is irritatingly difficult to feature test for; we have to check the
2025 # date string after the version number. If we've got an in-tree
2026 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2028 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2029 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2034 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2035 [if test $in_tree_ld = yes ; then
2037 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2038 && test $in_tree_ld_is_elf = yes; then
2039 gcc_cv_ld_hidden=yes
2042 gcc_cv_ld_hidden=yes
2043 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2044 if echo "$ld_ver" | grep GNU > /dev/null; then
2046 ld_vers=`echo $ld_ver | sed -n \
2047 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2048 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2049 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2050 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2051 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2052 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2053 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2054 if test 0"$ld_date" -lt 20020404; then
2055 if test -n "$ld_date"; then
2056 # If there was date string, but was earlier than 2002-04-04, fail
2058 elif test -z "$ld_vers"; then
2059 # If there was no date string nor ld version number, something is wrong
2062 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2063 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2064 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2065 test -z "$ld_vers_patch" && ld_vers_patch=0
2066 if test "$ld_vers_major" -lt 2; then
2068 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2069 gcc_cv_ld_hidden="no"
2070 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2078 hppa64*-*-hpux* | ia64*-*-hpux*)
2079 gcc_cv_ld_hidden=yes
2087 libgcc_visibility=no
2088 AC_SUBST(libgcc_visibility)
2089 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2090 libgcc_visibility=yes
2091 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2092 [Define if your assembler and linker support .hidden.])
2095 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2096 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2104 [# GAS versions before 2.11 do not support uleb128,
2105 # despite appearing to.
2106 # ??? There exists an elf-specific test that will crash
2107 # the assembler. Perhaps it's better to figure out whether
2108 # arbitrary sections are supported and try the test.
2109 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2110 if echo "$as_ver" | grep GNU > /dev/null; then
2112 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2113 as_major=`echo $as_ver | sed 's/\..*//'`
2114 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2116 if test $as_major -eq 2 && test $as_minor -lt 11
2118 else gcc_cv_as_leb128=yes
2121 [AC_DEFINE(HAVE_AS_LEB128, 1,
2122 [Define if your assembler supports .sleb128 and .uleb128.])])
2124 # GAS versions up to and including 2.11.0 may mis-optimize
2126 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2134 .section .eh_frame,"aw",@progbits
2136 .4byte .LECIE1-.LSCIE1
2150 .4byte .LEFDE1-.LASFDE1
2152 .4byte .LASFDE1-__FRAME_BEGIN__
2160 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2161 cat > conftest.lit <<EOF
2162 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2163 0010 01000000 12000000 18000000 00000000 ................
2164 0020 08000000 04080000 0044 .........D @&t@
2166 cat > conftest.big <<EOF
2167 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2168 0010 00000001 00000012 00000018 00000000 ................
2169 0020 00000008 04000000 0844 .........D @&t@
2171 # If the assembler didn't choke, and we can objdump,
2172 # and we got the correct data, then succeed.
2173 if test x$gcc_cv_objdump != x \
2174 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2175 | tail -3 > conftest.got \
2176 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2177 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2179 gcc_cv_as_eh_frame=yes
2180 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2181 gcc_cv_as_eh_frame=buggy
2183 # Uh oh, what do we do now?
2184 gcc_cv_as_eh_frame=no
2187 if test $gcc_cv_as_eh_frame = buggy; then
2188 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2189 [Define if your assembler mis-optimizes .eh_frame data.])
2192 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2193 [elf,2,12,0], [--fatal-warnings],
2194 [.section .rodata.str, "aMS", @progbits, 1])
2195 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2196 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2197 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2199 # Thread-local storage - the check is heavily parametrized.
2208 .section ".tdata","awT",@progbits
2211 ldq $27,__tls_get_addr($29) !literal!1
2212 lda $16,foo($29) !tlsgd!1
2213 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2214 ldq $27,__tls_get_addr($29) !literal!2
2215 lda $16,foo($29) !tlsldm!2
2216 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2217 ldq $1,foo($29) !gotdtprel
2218 ldah $2,foo($29) !dtprelhi
2219 lda $3,foo($2) !dtprello
2220 lda $4,foo($29) !dtprel
2221 ldq $1,foo($29) !gottprel
2222 ldah $2,foo($29) !tprelhi
2223 lda $3,foo($2) !tprello
2224 lda $4,foo($29) !tprel'
2227 tls_as_opt=--fatal-warnings
2231 .section ".tdata","awT",@progbits
2235 leal foo@TLSGD(,%ebx,1), %eax
2236 leal foo@TLSLDM(%ebx), %eax
2237 leal foo@DTPOFF(%eax), %edx
2238 movl foo@GOTTPOFF(%ebx), %eax
2239 subl foo@GOTTPOFF(%ebx), %eax
2240 addl foo@GOTNTPOFF(%ebx), %eax
2241 movl foo@INDNTPOFF, %eax
2242 movl $foo@TPOFF, %eax
2243 subl $foo@TPOFF, %eax
2244 leal foo@NTPOFF(%ecx), %eax'
2247 tls_as_opt=--fatal-warnings
2251 .section ".tdata","awT",@progbits
2255 leaq foo@TLSGD(%rip), %rdi
2256 leaq foo@TLSLD(%rip), %rdi
2257 leaq foo@DTPOFF(%rax), %rdx
2258 movq foo@GOTTPOFF(%rip), %rax
2259 movq $foo@TPOFF, %rax'
2262 tls_as_opt=--fatal-warnings
2266 .section ".tdata","awT",@progbits
2269 addl r16 = @ltoff(@dtpmod(foo#)), gp
2270 addl r17 = @ltoff(@dtprel(foo#)), gp
2271 addl r18 = @ltoff(@tprel(foo#)), gp
2272 addl r19 = @dtprel(foo#), gp
2273 adds r21 = @dtprel(foo#), r13
2274 movl r23 = @dtprel(foo#)
2275 addl r20 = @tprel(foo#), gp
2276 adds r22 = @tprel(foo#), r13
2277 movl r24 = @tprel(foo#)'
2280 tls_as_opt=--fatal-warnings
2284 .section ".tdata","awT",@progbits
2292 addi 3,31,ld0@got@tlsgd
2294 addi 3,31,x1@got@tlsld
2297 addis 9,3,x2@dtprel@ha
2298 addi 9,9,x2@dtprel@l
2299 lwz 9,x3@got@tprel(31)
2302 addis 9,2,x2@tprel@ha
2303 addi 9,9,x2@tprel@l'
2306 tls_as_opt="-a32 --fatal-warnings"
2310 .section ".tdata","awT",@progbits
2318 addi 3,2,ld0@got@tlsgd
2324 addi 3,2,x1@got@tlsld
2330 addis 9,3,x2@dtprel@ha
2331 addi 9,9,x2@dtprel@l
2334 ld 9,x3@got@dtprel(2)
2340 tls_as_opt="-a64 --fatal-warnings"
2344 .section ".tdata","awT",@progbits
2353 l %r1,foo@GOTNTPOFF(%r12)
2354 l %r1,0(%r1):tls_load:foo
2355 bas %r14,0(%r1,%r13):tls_gdcall:foo
2356 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2359 tls_as_opt="-m31 --fatal-warnings"
2363 .section ".tdata","awT",@progbits
2371 lg %r1,foo@GOTNTPOFF(%r12)
2372 larl %r1,foo@INDNTPOFF
2373 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2374 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2377 tls_as_opt="-m64 -Aesame --fatal-warnings"
2379 sh-*-* | sh[34]-*-*)
2381 .section ".tdata","awT",@progbits
2391 tls_as_opt=--fatal-warnings
2395 sparc*-sun-solaris2.*)
2402 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2404 .section ".tdata",#alloc,#write,#tls
2407 sethi %tgd_hi22(foo), %o0
2408 add %o0, %tgd_lo10(foo), %o1
2409 add %l7, %o1, %o0, %tgd_add(foo)
2410 call __tls_get_addr, %tgd_call(foo)
2411 sethi %tldm_hi22(foo), %l1
2412 add %l1, %tldm_lo10(foo), %l2
2413 add %l7, %l2, %o0, %tldm_add(foo)
2414 call __tls_get_addr, %tldm_call(foo)
2415 sethi %tldo_hix22(foo), %l3
2416 xor %l3, %tldo_lox10(foo), %l4
2417 add %o0, %l4, %l5, %tldo_add(foo)
2418 sethi %tie_hi22(foo), %o3
2419 add %o3, %tie_lo10(foo), %o3
2420 ld [%l7 + %o3], %o2, %tie_ld(foo)
2421 add %g7, %o2, %o4, %tie_add(foo)
2422 sethi %tle_hix22(foo), %l1
2423 xor %l1, %tle_lox10(foo), %o5
2424 ld [%g7 + %o5], %o1'
2429 .section ".tdata","awT",@progbits
2432 sethi %tgd_hi22(foo), %o0
2433 add %o0, %tgd_lo10(foo), %o1
2434 add %l7, %o1, %o0, %tgd_add(foo)
2435 call __tls_get_addr, %tgd_call(foo)
2436 sethi %tldm_hi22(foo), %l1
2437 add %l1, %tldm_lo10(foo), %l2
2438 add %l7, %l2, %o0, %tldm_add(foo)
2439 call __tls_get_addr, %tldm_call(foo)
2440 sethi %tldo_hix22(foo), %l3
2441 xor %l3, %tldo_lox10(foo), %l4
2442 add %o0, %l4, %l5, %tldo_add(foo)
2443 sethi %tie_hi22(foo), %o3
2444 add %o3, %tie_lo10(foo), %o3
2445 ld [%l7 + %o3], %o2, %tie_ld(foo)
2446 add %g7, %o2, %o4, %tie_add(foo)
2447 sethi %tle_hix22(foo), %l1
2448 xor %l1, %tle_lox10(foo), %o5
2449 ld [%g7 + %o5], %o1'
2452 tls_as_opt="-32 --fatal-warnings"
2457 if test -z "$tls_first_major"; then
2458 : # If we don't have a check, assume no support.
2460 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2461 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2462 [AC_DEFINE(HAVE_AS_TLS, 1,
2463 [Define if your assembler supports thread-local storage.])])
2466 # Target-specific assembler checks.
2468 if test x"$demangler_in_ld" = xyes; then
2469 AC_MSG_CHECKING(linker --demangle support)
2470 gcc_cv_ld_demangle=no
2471 if test $in_tree_ld = yes; then
2472 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2473 gcc_cv_ld_demangle=yes
2475 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2476 # Check if the GNU linker supports --demangle option
2477 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2478 gcc_cv_ld_demangle=yes
2481 if test x"$gcc_cv_ld_demangle" = xyes; then
2482 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2483 [Define if your linker supports --demangle option.])
2485 AC_MSG_RESULT($gcc_cv_ld_demangle)
2489 # All TARGET_ABI_OSF targets.
2490 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2491 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2492 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2495 extbl $3, $2, $3 !lituse_bytoff!1
2496 ldq $2, a($29) !literal!1
2497 ldq $4, b($29) !literal!2
2498 ldq_u $3, 0($2) !lituse_base!1
2499 ldq $27, f($29) !literal!5
2500 jsr $26, ($27), f !lituse_jsr!5
2501 ldah $29, 0($26) !gpdisp!3
2502 lda $0, c($29) !gprel
2503 ldah $1, d($29) !gprelhigh
2504 lda $1, d($1) !gprellow
2505 lda $29, 0($29) !gpdisp!3],,
2506 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2507 [Define if your assembler supports explicit relocations.])])
2511 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2512 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2513 [-no-mul-bug-abort], [.text],,
2514 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2515 [Define if your assembler supports the -no-mul-bug-abort option.])])
2519 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2520 [.register %g2, #scratch],,
2521 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2522 [Define if your assembler supports .register.])])
2524 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2526 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2527 [Define if your assembler supports -relax option.])])
2529 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2530 gcc_cv_as_sparc_ua_pcrel,,
2538 .uaword %r_disp32(foo)],
2539 [if test x$gcc_cv_ld != x \
2540 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2541 gcc_cv_as_sparc_ua_pcrel=yes
2544 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2545 [Define if your assembler and linker support unaligned PC relative relocs.])
2547 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2548 gcc_cv_as_sparc_ua_pcrel_hidden,,
2553 .uaword %r_disp32(foo)
2554 .byte 0x32, 0x33, 0x34
2559 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2560 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2561 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2562 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2563 if $gcc_cv_objdump -R conftest 2> /dev/null \
2564 | grep 'DISP32' > /dev/null 2>&1; then
2567 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2571 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2572 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2573 ]) # unaligned pcrel relocs
2575 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2576 gcc_cv_as_sparc_offsetable_lo10,,
2579 or %g1, %lo(ab) + 12, %g1
2580 or %g1, %lo(ab + 12), %g1],
2581 [if test x$gcc_cv_objdump != x \
2582 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2583 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2584 gcc_cv_as_offsetable_lo10=yes
2586 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2587 [Define if your assembler supports offsetable %lo().])])
2591 i[34567]86-*-* | x86_64-*-*)
2594 cygwin* | pe | mingw32*)
2595 # Used for DWARF 2 in PE
2596 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2597 gcc_cv_as_ix86_pe_secrel32,
2603 [if test x$gcc_cv_ld != x \
2604 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2605 gcc_cv_as_ix86_pe_secrel32=yes
2608 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2609 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2613 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2614 gcc_cv_as_ix86_filds_fists,
2615 [2,9,0],, [filds mem; fists mem],,
2616 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2617 [Define if your assembler uses the new HImode fild and fist notation.])])
2619 gcc_GAS_CHECK_FEATURE([cmov syntax],
2620 gcc_cv_as_ix86_cmov_sun_syntax,,,
2621 [cmovl.l %edx, %eax],,
2622 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2623 [Define if your assembler supports the Sun syntax for cmov.])])
2625 # This one is used unconditionally by i386.[ch]; it is to be defined
2626 # to 1 if the feature is present, 0 otherwise.
2627 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2628 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2634 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2635 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2636 [Define true if the assembler supports '.long foo@GOTOFF'.])
2640 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2641 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2643 addl r15 = @ltoffx(x#), gp
2645 ld8.mov r16 = [[r15]], x#],,
2646 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2647 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2653 *-*-aix*) conftest_s=' .csect .text[[PR]]
2655 *-*-darwin*) conftest_s=' .text
2657 *) conftest_s=' .text
2661 gcc_GAS_CHECK_FEATURE([mfcr field support],
2662 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2664 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2665 [Define if your assembler supports mfcr field.])])
2669 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2670 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2671 [ lw $4,%gp_rel(foo)($4)],,
2672 [if test x$target_cpu_default = x
2673 then target_cpu_default=MASK_EXPLICIT_RELOCS
2674 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2677 if test x$gas_flag = xyes \
2678 || test x"$host" != x"$build" \
2679 || test ! -x "$gcc_cv_as" \
2680 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2683 echo "*** This configuration requires the GNU assembler" >&2
2688 # ??? Not all targets support dwarf2 debug_line, even within a version
2689 # of gas. Moreover, we need to emit a valid instruction to trigger any
2690 # info to the output file. So, as supported targets are added to gas 2.11,
2691 # add some instruction here to (also) show we expect this might work.
2692 # ??? Once 2.11 is released, probably need to add first known working
2693 # version to the per-target configury.
2695 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2696 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2697 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2700 ia64*-*-* | s390*-*-*)
2707 if test x"$insn" != x; then
2709 .file 1 \"conftest.s\"
2712 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2713 gcc_cv_as_dwarf2_debug_line,
2714 [elf,2,11,0],, [$conftest_s],
2715 [# ??? This fails with non-gnu grep. Maybe use objdump?
2716 if grep debug_line conftest.o > /dev/null 2>&1; then
2717 gcc_cv_as_dwarf2_debug_line=yes
2720 # The .debug_line file table must be in the exact order that
2721 # we specified the files, since these indices are also used
2722 # by DW_AT_decl_file. Approximate this test by testing if
2723 # the assembler bitches if the same index is assigned twice.
2724 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2725 gcc_cv_as_dwarf2_file_buggy,,,
2729 if test $gcc_cv_as_dwarf2_debug_line = yes \
2730 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2731 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2732 [Define if your assembler supports dwarf2 .file/.loc directives,
2733 and preserves file table indices exactly as given.])
2736 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2737 gcc_cv_as_gdwarf2_flag,
2738 [elf,2,11,0], [--gdwarf2], [$insn],,
2739 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2740 [Define if your assembler supports the --gdwarf2 option.])])
2742 gcc_GAS_CHECK_FEATURE([--gstabs option],
2743 gcc_cv_as_gstabs_flag,
2744 [elf,2,11,0], [--gstabs], [$insn],
2745 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2746 # and warns about it, but still exits successfully. So check for
2748 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2750 else gcc_cv_as_gstabs_flag=yes
2752 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2753 [Define if your assembler supports the --gstabs option.])])
2756 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2757 gcc_cv_ld_ro_rw_mix=unknown
2758 if test $in_tree_ld = yes ; then
2759 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2760 && test $in_tree_ld_is_elf = yes; then
2761 gcc_cv_ld_ro_rw_mix=read-write
2763 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2764 echo '.section myfoosect, "a"' > conftest1.s
2765 echo '.section myfoosect, "aw"' > conftest2.s
2766 echo '.byte 1' >> conftest2.s
2767 echo '.section myfoosect, "a"' > conftest3.s
2768 echo '.byte 0' >> conftest3.s
2769 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2770 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2771 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2772 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2773 conftest2.o conftest3.o > /dev/null 2>&1; then
2774 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2775 | sed -e '/myfoosect/!d' -e N`
2776 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2777 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2778 gcc_cv_ld_ro_rw_mix=read-only
2780 gcc_cv_ld_ro_rw_mix=read-write
2785 rm -f conftest.* conftest[123].*
2788 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2789 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2790 [Define if your linker links a mix of read-only
2791 and read-write sections into a read-write section.])
2793 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2795 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2796 gcc_cv_ld_eh_frame_hdr=no
2797 if test $in_tree_ld = yes ; then
2798 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2799 && test $in_tree_ld_is_elf = yes; then
2800 gcc_cv_ld_eh_frame_hdr=yes
2802 elif test x$gcc_cv_ld != x; then
2803 # Check if linker supports --eh-frame-hdr option
2804 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2805 gcc_cv_ld_eh_frame_hdr=yes
2808 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2809 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2810 [Define if your linker supports --eh-frame-hdr option.])
2812 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2814 AC_MSG_CHECKING(linker position independent executable support)
2816 if test $in_tree_ld = yes ; then
2817 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2818 && test $in_tree_ld_is_elf = yes; then
2821 elif test x$gcc_cv_ld != x; then
2822 # Check if linker supports -pie option
2823 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2827 if test x"$gcc_cv_ld_pie" = xyes; then
2828 AC_DEFINE(HAVE_LD_PIE, 1,
2829 [Define if your linker supports -pie option.])
2831 AC_MSG_RESULT($gcc_cv_ld_pie)
2837 AC_CACHE_CHECK(linker --as-needed support,
2838 gcc_cv_ld_as_needed,
2839 [gcc_cv_ld_as_needed=no
2840 if test $in_tree_ld = yes ; then
2841 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2842 && test $in_tree_ld_is_elf = yes; then
2843 gcc_cv_ld_as_needed=yes
2845 elif test x$gcc_cv_ld != x; then
2846 # Check if linker supports --as-needed and --no-as-needed options
2847 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2848 gcc_cv_ld_as_needed=yes
2852 if test x"$gcc_cv_ld_as_needed" = xyes; then
2853 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2854 [Define if your linker supports --as-needed and --no-as-needed options.])
2858 powerpc64*-*-linux*)
2859 AC_CACHE_CHECK(linker support for omitting dot symbols,
2860 gcc_cv_ld_no_dot_syms,
2861 [gcc_cv_ld_no_dot_syms=no
2862 if test $in_tree_ld = yes ; then
2863 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
2864 gcc_cv_ld_no_dot_syms=yes
2866 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
2867 cat > conftest1.s <<EOF
2871 cat > conftest2.s <<EOF
2872 .section ".opd","aw"
2877 .quad .LEfoo,.TOC.@tocbase,0
2883 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
2884 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
2885 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
2886 gcc_cv_ld_no_dot_syms=yes
2888 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
2891 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
2892 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
2893 [Define if your PowerPC64 linker only needs function descriptor syms.])
2898 if test x$with_sysroot = x && test x$host = x$target \
2899 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2900 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2901 [Define to PREFIX/include if cpp should also search that directory.])
2904 # Find out what GC implementation we want, or may, use.
2906 [ --with-gc={page,zone} choose the garbage collection mechanism to use
2913 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2918 echo "Using $GGC for garbage collection."
2920 # Use the system's zlib library.
2922 zlibinc="-I\$(srcdir)/../zlib"
2923 AC_ARG_WITH(system-zlib,
2924 [ --with-system-zlib use installed libz],
2931 dnl Very limited version of automake's enable-maintainer-mode
2933 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2934 dnl maintainer-mode is disabled by default
2935 AC_ARG_ENABLE(maintainer-mode,
2936 [ --enable-maintainer-mode
2937 enable make rules and dependencies not useful
2938 (and sometimes confusing) to the casual installer],
2939 maintainer_mode=$enableval,
2942 AC_MSG_RESULT($maintainer_mode)
2944 if test "$maintainer_mode" = "yes"; then
2951 AC_MSG_CHECKING([whether to use libbanshee for points-to alias analysis])
2952 AC_ARG_WITH(libbanshee,
2953 [ --with-libbanshee enable libbanshee],
2954 libbanshee="$with_libbanshee",
2957 if test x"$libbanshee" = xyes; then
2958 BANSHEELIB="../libbanshee/points-to/libandersen.a ../libbanshee/engine/libbansheeengine.a ../libbanshee/libcompat/libbansheecompat.a "
2959 BANSHEEINC="-I\$(srcdir)/../libbanshee/libcompat -I\$(srcdir)/../libbanshee -I\$(srcdir)/../libbanshee/points-to"
2960 ANDER="tree-alias-ander.o"
2961 AC_DEFINE(HAVE_BANSHEE, 1, [Define if BANSHEE is available])
2967 AC_MSG_RESULT($with_libbanshee)
2970 AC_SUBST(BANSHEEINC)
2971 AC_SUBST(BANSHEELIB)
2977 # Make empty files to contain the specs and options for each language.
2978 # Then add #include lines to for a compiler that has specs and/or options.
2983 for subdir in . $subdirs
2985 if test -f $srcdir/$subdir/lang.opt; then
2986 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2988 if test -f $srcdir/$subdir/lang-specs.h; then
2989 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2991 if test -f $srcdir/$subdir/$subdir-tree.def; then
2992 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2996 # These (without "all_") are set in each config-lang.in.
2997 # `language' must be a single word so is spelled singularly.
3002 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders libada-mk'
3003 # List of language makefile fragments.
3005 # List of language subdirectory makefiles. Deprecated.
3007 # Files for gengtype
3008 all_gtfiles="$target_gtfiles"
3009 # Files for gengtype with language
3010 all_gtfiles_files_langs=
3011 all_gtfiles_files_files=
3013 # Add the language fragments.
3014 # Languages are added via two mechanisms. Some information must be
3015 # recorded in makefile variables, these are defined in config-lang.in.
3016 # We accumulate them and plug them into the main Makefile.
3017 # The other mechanism is a set of hooks for each of the main targets
3018 # like `clean', `install', etc.
3020 language_hooks="Make-hooks"
3030 . ${srcdir}/$s/config-lang.in
3031 if test "x$language" = x
3033 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3036 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3037 if test -f ${srcdir}/$s/Makefile.in
3038 then all_lang_makefiles="$s/Makefile"
3040 all_languages="$all_languages $language"
3041 if test "x$boot_language" = xyes
3043 all_boot_languages="$all_boot_languages $language"
3045 all_compilers="$all_compilers $compilers"
3046 all_stagestuff="$all_stagestuff $stagestuff"
3047 all_outputs="$all_outputs $outputs"
3048 all_gtfiles="$all_gtfiles $gtfiles"
3051 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3052 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3056 # Pick up gtfiles for c
3059 . ${srcdir}/c-config-lang.in
3060 all_gtfiles="$all_gtfiles $gtfiles"
3063 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3064 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3068 for language in $all_languages
3070 check_languages="$check_languages check-$language"
3073 # We link each language in with a set of hooks, reached indirectly via
3078 target_list="all.build all.cross start.encap rest.encap tags \
3079 install-normal install-common install-man \
3080 uninstall info man srcextra srcman srcinfo \
3081 mostlyclean clean distclean maintainer-clean \
3082 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3083 for t in $target_list
3086 for lang in $all_languages
3090 echo "lang.$t: $x" >> Make-hooks
3099 echo "dir ." > .gdbinit
3100 echo "dir ${srcdir}" >> .gdbinit
3101 if test x$gdb_needs_out_file_path = xyes
3103 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3105 if test "x$subdirs" != x; then
3108 echo "dir ${srcdir}/$s" >> .gdbinit
3111 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3113 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3114 # absolute path for gcc_tooldir based on inserting the number of up-directory
3115 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3116 # $(libsubdir)/@(unlibsubdir) based path.
3117 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3118 # make and thus we'd get different behavior depending on where we built the
3120 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3121 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3123 changequote(<<, >>)dnl
3124 # An explanation of the sed strings:
3125 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3126 # -e 's|/$||' match a trailing forward slash and eliminates it
3127 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3128 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3130 # (*) Note this pattern overwrites the first character of the string
3131 # with a forward slash if one is not already present. This is not a
3132 # problem because the exact names of the sub-directories concerned is
3133 # unimportant, just the number of them matters.
3135 # The practical upshot of these patterns is like this:
3137 # prefix exec_prefix result
3138 # ------ ----------- ------
3140 # /foo/ /foo/bar ../
3141 # /foo /foo/bar/ ../
3142 # /foo/ /foo/bar/ ../
3143 # /foo /foo/bar/ugg ../../
3146 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3147 changequote([, ])dnl
3149 AC_SUBST(gcc_tooldir)
3152 # Find a directory in which to install a shared libgcc.
3154 AC_ARG_ENABLE(version-specific-runtime-libs,
3155 [ --enable-version-specific-runtime-libs
3156 specify that runtime libraries should be
3157 installed in a compiler-specific directory])
3159 AC_ARG_WITH(slibdir,
3160 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3161 slibdir="$with_slibdir",
3162 if test "${enable_version_specific_runtime_libs+set}" = set; then
3163 slibdir='$(libsubdir)'
3164 elif test "$host" != "$target"; then
3165 slibdir='$(build_tooldir)/lib'
3171 objdir=`${PWDCMD-pwd}`
3174 # Substitute configuration variables
3177 AC_SUBST(all_boot_languages)
3178 AC_SUBST(all_compilers)
3179 AC_SUBST(all_gtfiles)
3180 AC_SUBST(all_gtfiles_files_langs)
3181 AC_SUBST(all_gtfiles_files_files)
3182 AC_SUBST(all_lang_makefrags)
3183 AC_SUBST(all_lang_makefiles)
3184 AC_SUBST(all_languages)
3185 AC_SUBST(all_stagestuff)
3186 AC_SUBST(build_exeext)
3187 AC_SUBST(build_install_headers_dir)
3188 AC_SUBST(build_xm_file_list)
3189 AC_SUBST(build_xm_include_list)
3190 AC_SUBST(build_xm_defines)
3191 AC_SUBST(check_languages)
3192 AC_SUBST(cc_set_by_configure)
3193 AC_SUBST(quoted_cc_set_by_configure)
3194 AC_SUBST(cpp_install_dir)
3195 AC_SUBST(xmake_file)
3196 AC_SUBST(tmake_file)
3197 AC_SUBST(extra_gcc_objs)
3198 AC_SUBST(extra_headers_list)
3199 AC_SUBST(extra_objs)
3200 AC_SUBST(extra_parts)
3201 AC_SUBST(extra_passes)
3202 AC_SUBST(extra_programs)
3203 AC_SUBST(float_h_file)
3204 AC_SUBST(gcc_config_arguments)
3205 AC_SUBST(gcc_gxx_include_dir)
3206 AC_SUBST(libstdcxx_incdir)
3207 AC_SUBST(gcc_version)
3208 AC_SUBST(gcc_version_full)
3209 AC_SUBST(gcc_version_trigger)
3210 AC_SUBST(host_exeext)
3211 AC_SUBST(host_xm_file_list)
3212 AC_SUBST(host_xm_include_list)
3213 AC_SUBST(host_xm_defines)
3214 AC_SUBST(out_host_hook_obj)
3216 AC_SUBST(lang_opt_files)
3217 AC_SUBST(lang_specs_files)
3218 AC_SUBST(lang_tree_files)
3219 AC_SUBST(local_prefix)
3221 AC_SUBST(objc_boehm_gc)
3223 AC_SUBST(out_object_file)
3224 AC_SUBST(stage_prefix_set_by_configure)
3225 AC_SUBST(quoted_stage_prefix_set_by_configure)
3226 AC_SUBST(symbolic_link)
3227 AC_SUBST(thread_file)
3228 AC_SUBST(tm_file_list)
3229 AC_SUBST(tm_include_list)
3230 AC_SUBST(tm_defines)
3231 AC_SUBST(tm_p_file_list)
3232 AC_SUBST(tm_p_include_list)
3233 AC_SUBST(xm_file_list)
3234 AC_SUBST(xm_include_list)
3235 AC_SUBST(xm_defines)
3236 AC_SUBST(c_target_objs)
3237 AC_SUBST(cxx_target_objs)
3238 AC_SUBST(target_cpu_default)
3240 AC_SUBST_FILE(language_hooks)
3242 # If it doesn't already exist, create document directory
3243 echo "checking for the document directory." 1>&2
3244 if test -d doc ; then
3251 if test x${build} = x${host} ; then
3252 if test x${host} = x${target} ; then
3253 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3255 echo "Links are now set up to build a cross-compiler" 1>&2
3256 echo " from ${host} to ${target}." 1>&2
3259 if test x${host} = x${target} ; then
3260 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3261 echo " for ${target}." 1>&2
3263 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3264 echo " from ${host} to ${target}." 1>&2
3268 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3269 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3271 # Configure the subdirectories
3272 # AC_CONFIG_SUBDIRS($subdirs)
3274 # Create the Makefile
3275 # and configure language subdirectories
3276 AC_CONFIG_FILES($all_outputs)
3278 AC_CONFIG_COMMANDS([default],
3280 case ${CONFIG_HEADERS} in
3281 *auto-host.h:config.in*)
3284 # Make sure all the subdirs exist.
3287 test -d $d || mkdir $d
3289 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3290 # bootstrapping and the installation procedure can still use
3291 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3292 # FLAGS_TO_PASS has been modified to solve the problem there.
3293 # This is virtually a duplicate of what happens in configure.lang; we do
3294 # an extra check to make sure this only happens if ln -s can be used.
3295 if test "$symbolic_link" = "ln -s"; then
3296 for d in ${subdirs} fixinc ; do
3297 STARTDIR=`${PWDCMD-pwd}`
3299 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3302 $symbolic_link ../$t $t 2>/dev/null
3309 symbolic_link='$symbolic_link'