2 # Process this file with autoconf to generate a configuration script.
4 # Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
6 #This file is part of GCC.
8 #GCC is free software; you can redistribute it and/or modify it under
9 #the terms of the GNU General Public License as published by the Free
10 #Software Foundation; either version 2, or (at your option) any later
13 #GCC is distributed in the hope that it will be useful, but WITHOUT
14 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 #You should have received a copy of the GNU General Public License
19 #along with GCC; see the file COPYING. If not, write to the Free
20 #Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 # Initialization and defaults
26 AC_CONFIG_HEADER(auto-host.h:config.in)
33 # Check for bogus environment variables.
34 # Test if LIBRARY_PATH contains the notation for the current directory
35 # since this would lead to problems installing/building glibc.
36 # LIBRARY_PATH contains the current directory if one of the following
38 # - one of the terminals (":" and ";") is the first or last sign
39 # - two terminals occur directly after each other
40 # - the path contains an element with a dot in it
41 AC_MSG_CHECKING(LIBRARY_PATH variable)
43 case ${LIBRARY_PATH} in
44 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
45 library_path_setting="contains current directory"
48 library_path_setting="ok"
52 AC_MSG_RESULT($library_path_setting)
53 if test "$library_path_setting" != "ok"; then
55 *** LIBRARY_PATH shouldn't contain the current directory when
56 *** building gcc. Please change the environment variable
57 *** and run configure again.])
60 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
61 # since this would lead to problems installing/building glibc.
62 # GCC_EXEC_PREFIX contains the current directory if one of the following
64 # - one of the terminals (":" and ";") is the first or last sign
65 # - two terminals occur directly after each other
66 # - the path contains an element with a dot in it
67 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
69 case ${GCC_EXEC_PREFIX} in
70 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
71 gcc_exec_prefix_setting="contains current directory"
74 gcc_exec_prefix_setting="ok"
78 AC_MSG_RESULT($gcc_exec_prefix_setting)
79 if test "$gcc_exec_prefix_setting" != "ok"; then
81 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
82 *** building gcc. Please change the environment variable
83 *** and run configure again.])
86 # Check for additional parameters
90 [ --with-gnu-ld arrange to work with GNU ld.],
91 gnu_ld_flag="$with_gnu_ld",
96 [ --with-ld arrange to use the specified ld (full pathname)],
97 DEFAULT_LINKER="$with_ld")
98 if test x"${DEFAULT_LINKER+set}" = x"set"; then
99 if test ! -x "$DEFAULT_LINKER"; then
100 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
101 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
104 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
105 [Define to enable the use of a default linker.])
110 [ --with-gnu-as arrange to work with GNU as],
111 gas_flag="$with_gnu_as",
115 [ --with-as arrange to use the specified as (full pathname)],
116 DEFAULT_ASSEMBLER="$with_as")
117 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
118 if test ! -x "$DEFAULT_ASSEMBLER"; then
119 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
120 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
123 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
124 [Define to enable the use of a default assembler.])
129 [ --with-stabs arrange to use stabs instead of host debug format],
135 [ --with-elf arrange to use ELF instead of host debug format],
139 # Specify the local prefix
141 AC_ARG_WITH(local-prefix,
142 [ --with-local-prefix=DIR specifies directory to put local include],
143 [case "${withval}" in
144 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
146 *) local_prefix=$with_local_prefix ;;
149 # Default local prefix if it is empty
150 if test x$local_prefix = x; then
151 local_prefix=/usr/local
154 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
155 # passed in by the toplevel make and thus we'd get different behavior
156 # depending on where we built the sources.
158 # Specify the g++ header file directory
159 AC_ARG_WITH(gxx-include-dir,
160 [ --with-gxx-include-dir=DIR
161 specifies directory to put g++ header files],
162 [case "${withval}" in
163 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
165 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
168 if test x${gcc_gxx_include_dir} = x; then
169 if test x${enable_version_specific_runtime_libs} = xyes; then
170 gcc_gxx_include_dir='${libsubdir}/include/g++'
172 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
173 changequote(<<, >>)dnl
174 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
179 # Determine whether or not multilibs are enabled.
180 AC_ARG_ENABLE(multilib,
181 [ --enable-multilib enable library support for multiple ABIs],
182 [], [enable_multilib=yes])
183 AC_SUBST(enable_multilib)
185 # Enable expensive internal checks
186 AC_ARG_ENABLE(checking,
187 [ --enable-checking[=LIST]
188 enable expensive run-time checks. With LIST,
189 enable only specific categories of checks.
190 Categories are: misc,tree,rtl,gc,gcac; default
196 ac_gc_always_collect=
197 case "${enableval}" in
198 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;;
200 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
201 set fnord $enableval; shift
206 misc) ac_checking=1 ;;
207 tree) ac_tree_checking=1 ;;
208 rtl) ac_rtl_checking=1 ;;
209 gc) ac_gc_checking=1 ;;
210 gcac) ac_gc_always_collect=1 ;;
211 *) AC_MSG_ERROR(unknown check category $check) ;;
218 if test x$ac_checking != x ; then
219 AC_DEFINE(ENABLE_CHECKING, 1,
220 [Define if you want more run-time sanity checks. This one gets a grab
221 bag of miscellaneous but relatively cheap checks.])
223 if test x$ac_tree_checking != x ; then
224 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
225 [Define if you want all operations on trees (the basic data
226 structure of the front ends) to be checked for dynamic type safety
227 at runtime. This is moderately expensive.])
229 if test x$ac_rtl_checking != x ; then
230 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
231 [Define if you want all operations on RTL (the basic data structure
232 of the optimizer and back end) to be checked for dynamic type safety
233 at runtime. This is quite expensive.])
235 if test x$ac_gc_checking != x ; then
236 AC_DEFINE(ENABLE_GC_CHECKING, 1,
237 [Define if you want the garbage collector to do object poisoning and
238 other memory allocation checks. This is quite expensive.])
240 if test x$ac_gc_always_collect != x ; then
241 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
242 [Define if you want the garbage collector to operate in maximally
243 paranoid mode, validating the entire heap and collecting garbage at
244 every opportunity. This is extremely expensive.])
249 [ --disable-cpp don't provide a user-visible C preprocessor],
250 [], [enable_cpp=yes])
252 AC_ARG_WITH(cpp_install_dir,
253 [ --with-cpp-install-dir=DIR
254 install the user visible C preprocessor in DIR
255 (relative to PREFIX) as well as PREFIX/bin],
256 [if test x$withval = xyes; then
257 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
258 elif test x$withval != xno; then
259 cpp_install_dir=$withval
262 # Enable Multibyte Characters for C/C++
263 AC_ARG_ENABLE(c-mbchar,
264 [ --enable-c-mbchar enable multibyte characters for C and C++],
265 if test x$enable_c_mbchar != xno; then
266 AC_DEFINE(MULTIBYTE_CHARS, 1,
267 [Define if you want the C and C++ compilers to support multibyte
268 character sets for source code.])
272 # Pass with no value to take the default
273 # Pass with a value to specify a thread package
274 AC_ARG_ENABLE(threads,
275 [ --enable-threads enable thread usage for target GCC
276 --enable-threads=LIB use LIB thread package for target GCC],,
279 enable_threads_flag=$enable_threads
280 # Check if a valid thread package
281 case x${enable_threads_flag} in
284 target_thread_file='single'
288 target_thread_file=''
290 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
291 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
292 target_thread_file=$enable_threads_flag
295 echo "$enable_threads is an unknown thread package" 1>&2
300 AC_ARG_ENABLE(objc-gc,
301 [ --enable-objc-gc enable the use of Boehm's garbage collector with
302 the GNU Objective-C runtime],
303 if test x$enable_objc_gc = xno; then
311 [ --with-dwarf2 force the default debug format to be DWARF 2],
312 dwarf2="$with_dwarf2",
315 AC_ARG_ENABLE(shared,
316 [ --disable-shared don't provide a shared libgcc],
318 case $enable_shared in
322 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
323 for pkg in $enableval; do
324 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
331 ], [enable_shared=yes])
332 AC_SUBST(enable_shared)
334 # Determine the host, build, and target systems
337 # Set program_transform_name
340 # Find the native compiler
343 # autoconf is lame and doesn't give us any substitution variable for this.
344 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
345 NO_MINUS_C_MINUS_O=yes
347 OUTPUT_OPTION='-o $@'
349 AC_SUBST(NO_MINUS_C_MINUS_O)
350 AC_SUBST(OUTPUT_OPTION)
352 # See if GNAT has been installed
355 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
356 ac_cv_prog_cc_no_long_long,
357 [save_CFLAGS="$CFLAGS"
358 CFLAGS="-Wno-long-long"
359 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
360 ac_cv_prog_cc_no_long_long=no)
361 CFLAGS="$save_CFLAGS"])
363 if test x$have_gnat != xno ; then
364 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
365 ac_cv_prog_adac_no_long_long,
366 [cat >conftest.adb <<EOF
367 procedure conftest is begin null; end conftest;
369 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
370 ac_cv_prog_adac_no_long_long=yes
372 ac_cv_prog_adac_no_long_long=no
376 ac_cv_prog_adac_no_long_long=yes
380 if test $ac_cv_prog_cc_no_long_long = yes && \
381 test $ac_cv_prog_adac_no_long_long = yes ; then
382 strict1_warn="-pedantic -Wno-long-long"
384 AC_SUBST(strict1_warn)
394 # sizeof(char) is 1 by definition.
395 gcc_AC_COMPILE_CHECK_SIZEOF(short)
396 gcc_AC_COMPILE_CHECK_SIZEOF(int)
397 gcc_AC_COMPILE_CHECK_SIZEOF(long)
398 if test $ac_cv_c_long_long = yes; then
399 gcc_AC_COMPILE_CHECK_SIZEOF(long long)
401 if test $ac_cv_c___int64 = yes; then
402 gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
407 # If the native compiler is GCC, we can enable warnings even in stage1.
408 # That's useful for people building cross-compilers, or just running a
411 if test "x$GCC" = "xyes"; then
412 warn_cflags='$(GCC_WARN_CFLAGS)'
414 AC_SUBST(warn_cflags)
416 # Stage specific cflags for build.
422 stage1_cflags="-Wa,-J"
428 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
429 # sources; use -no-cpp-precomp to get to GNU cpp.
430 # Apple's GCC has bugs in designated initializer handling, so disable
432 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
435 AC_SUBST(stage1_cflags)
439 AC_MSG_CHECKING([whether a default assembler was specified])
440 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
441 if test x"$gas_flag" = x"no"; then
442 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
444 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
450 AC_MSG_CHECKING([whether a default linker was specified])
451 if test x"${DEFAULT_LINKER+set}" = x"set"; then
452 if test x"$gnu_ld_flag" = x"no"; then
453 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
455 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
461 AC_MSG_CHECKING(for GNU C library)
462 AC_CACHE_VAL(gcc_cv_glibc,
464 [#include <features.h>],[
465 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
466 #error Not a GNU C library system
470 AC_MSG_RESULT($gcc_cv_glibc)
471 if test $gcc_cv_glibc = yes; then
472 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
475 # Find some useful tools
484 gcc_AC_HEADER_STDBOOL
487 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
488 fcntl.h unistd.h sys/file.h sys/time.h \
489 sys/resource.h sys/param.h sys/times.h sys/stat.h \
490 direct.h malloc.h langinfo.h)
492 # Check for thread headers.
493 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
494 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
496 # These tests can't be done till we know if we have limits.h.
498 gcc_AC_C_COMPILE_ENDIAN
499 gcc_AC_C_FLOAT_FORMAT
501 # See if we have the mktemp command.
502 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
504 # Do we have a single-tree copy of texinfo?
505 if test -f $srcdir/../texinfo/Makefile.in; then
506 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
507 gcc_cv_prog_makeinfo_modern=yes
508 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
510 # See if makeinfo has been installed and is modern enough
511 # that we can use it.
512 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
513 [GNU texinfo.* \([0-9][0-9.]*\)],
517 if test $gcc_cv_prog_makeinfo_modern = no; then
519 *** Makeinfo is missing or too old.
520 *** Info documentation will not be built.])
523 BUILD_INFO=info AC_SUBST(BUILD_INFO)
526 # Is pod2man recent enough to regenerate manpages?
527 AC_MSG_CHECKING([for recent Pod::Man])
528 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
530 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
537 dnl Don't use AC_PROG_LEX; we insist on flex.
538 dnl LEXLIB is not useful in gcc.
539 if test -f $srcdir/../flex/skel.c; then
540 FLEX='$(objdir)/../flex/flex'
542 AC_CHECK_PROG(FLEX, flex, flex, false)
546 # The -L switch is so bison can find its skeleton file.
547 if test -f $srcdir/../bison/bison.simple; then
548 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
550 AC_CHECK_PROG(BISON, bison, bison, false)
553 # These libraries may be used by collect2.
554 # We may need a special search path to get them linked.
555 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
557 for libs in '' -lld -lmld \
558 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
559 '-L/usr/lib/cmplrs/cc3.11 -lmld'
562 AC_TRY_LINK_FUNC(ldopen,
563 [gcc_cv_collect2_libs="$libs"; break])
566 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
567 case $gcc_cv_collect2_libs in
569 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
571 AC_SUBST(COLLECT2_LIBS)
573 # When building Ada code on Alpha, we need exc_resume which is usually in
574 # -lexc. So test for it.
577 AC_SEARCH_LIBS(exc_resume, exc)
580 AC_SUBST(GNAT_LIBEXC)
582 # See if the stage1 system preprocessor understands the ANSI C
583 # preprocessor stringification operator. (Used by symcat.h.)
586 # Use <inttypes.h> only if it exists,
587 # doesn't clash with <sys/types.h>, and declares intmax_t.
588 AC_MSG_CHECKING(for inttypes.h)
589 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
591 [#include <sys/types.h>
592 #include <inttypes.h>],
594 [gcc_cv_header_inttypes_h=yes],
595 gcc_cv_header_inttypes_h=no)])
596 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
597 if test $gcc_cv_header_inttypes_h = yes; then
598 AC_DEFINE(HAVE_INTTYPES_H, 1,
599 [Define if you have a working <inttypes.h> header file.])
602 dnl Disabled until we have a complete test for buggy enum bitfields.
603 dnl gcc_AC_C_ENUM_BF_UNSIGNED
605 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
606 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
607 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat)
609 AC_CHECK_TYPE(ssize_t, int)
611 # Try to determine the array type of the second argument of getgroups
612 # for the target system (int or gid_t).
614 if test "${target}" = "${build}"; then
615 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
618 # This condition may need some tweaking. It should include all
619 # targets where the array type of the second argument of getgroups
620 # is int and the type of gid_t is not equivalent to int.
621 *-*-sunos* | *-*-ultrix*)
622 TARGET_GETGROUPS_T=int
625 TARGET_GETGROUPS_T=gid_t
629 AC_SUBST(TARGET_GETGROUPS_T)
631 gcc_AC_FUNC_PRINTF_PTR
636 *** UWIN may not be used as a host platform because
637 *** linking with posix.dll is not allowed by the GNU GPL])
640 # Under VMS, vfork works very different than on Unix. The standard test
641 # won't work, and it isn't easily adaptable. It makes more sense to
643 ac_cv_func_vfork_works=yes
647 AC_FUNC_MMAP_ANYWHERE
652 # We will need to find libiberty.h and ansidecl.h
653 saved_CFLAGS="$CFLAGS"
654 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
655 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
656 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
657 fprintf_unlocked strstr errno \
658 malloc realloc calloc free basename getopt clock, , ,[
659 #include "ansidecl.h"
660 #include "system.h"])
662 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
663 #include "ansidecl.h"
665 #ifdef HAVE_SYS_RESOURCE_H
666 #include <sys/resource.h>
670 gcc_AC_CHECK_DECLS(times, , ,[
671 #include "ansidecl.h"
673 #ifdef HAVE_SYS_TIMES_H
674 #include <sys/times.h>
678 # More time-related stuff.
679 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
681 #include "ansidecl.h"
683 #ifdef HAVE_SYS_TIMES_H
684 #include <sys/times.h>
686 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
687 if test $ac_cv_struct_tms = yes; then
688 AC_DEFINE(HAVE_STRUCT_TMS, 1,
689 [Define if <sys/times.h> defines struct tms.])
692 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
693 # revisit after autoconf 2.50.
694 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
696 #include "ansidecl.h"
698 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
699 if test $gcc_cv_type_clock_t = yes; then
700 AC_DEFINE(HAVE_CLOCK_T, 1,
701 [Define if <time.h> defines clock_t.])
704 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
705 CFLAGS="$saved_CFLAGS"
707 # mkdir takes a single argument on some systems.
708 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
718 build_install_headers_dir=install-headers-tar
723 host_truncate_target=
726 # Decode the host machine, then the target machine.
727 # For the host machine, we save the xm_file variable as host_xm_file;
728 # then we decode the target machine and forget everything else
729 # that came from the host machine.
730 for machine in $build $host $target; do
731 . ${srcdir}/config.gcc
734 extra_objs="${host_extra_objs} ${extra_objs}"
736 # Default the target-machine variables that were not explicitly set.
737 if test x"$tm_file" = x
738 then tm_file=$cpu_type/$cpu_type.h; fi
740 if test x"$extra_headers" = x
741 then extra_headers=; fi
743 if test x$md_file = x
744 then md_file=$cpu_type/$cpu_type.md; fi
746 if test x$out_file = x
747 then out_file=$cpu_type/$cpu_type.c; fi
749 if test x"$tmake_file" = x
750 then tmake_file=$cpu_type/t-$cpu_type
753 if test x"$dwarf2" = xyes
754 then tm_file="$tm_file tm-dwarf2.h"
757 if test x$float_format = x
758 then float_format=i64
761 if test $float_format = none
762 then float_h_file=Makefile.in
763 else float_h_file=float-$float_format.h
766 # Handle cpp installation.
767 if test x$enable_cpp != xno
769 tmake_file="$tmake_file t-install-cpp"
772 # Say what files are being used for the output code and MD file.
773 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
774 echo "Using \`$srcdir/config/$md_file' as machine description file."
776 # If any of the xm_file variables contain nonexistent files, warn
777 # about them and drop them.
780 for x in $build_xm_file; do
781 if test -f $srcdir/config/$x
783 else AC_MSG_WARN($srcdir/config/$x does not exist.)
789 for x in $host_xm_file; do
790 if test -f $srcdir/config/$x
792 else AC_MSG_WARN($srcdir/config/$x does not exist.)
798 for x in $xm_file; do
799 if test -f $srcdir/config/$x
801 else AC_MSG_WARN($srcdir/config/$x does not exist.)
807 for f in $tm_file; do
810 if test $count = ax; then
811 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
813 echo "Using the following target machine macro files:"
814 for f in $tm_file; do
815 echo " $srcdir/config/$f"
820 for f in $host_xm_file; do
823 if test $count = a; then
825 elif test $count = ax; then
826 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
828 echo "Using the following host machine macro files:"
829 for f in $host_xm_file; do
830 echo " $srcdir/config/$f"
834 if test "$host_xm_file" != "$build_xm_file"; then
836 for f in $build_xm_file; do
839 if test $count = a; then
841 elif test $count = ax; then
842 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
844 echo "Using the following build machine macro files:"
845 for f in $build_xm_file; do
846 echo " $srcdir/config/$f"
851 if test x$thread_file = x; then
852 if test x$target_thread_file != x; then
853 thread_file=$target_thread_file
859 # auto-host.h is the file containing items generated by autoconf and is
860 # the first file included by config.h.
861 # If host=build, it is correct to have hconfig include auto-host.h
862 # as well. If host!=build, we are in error and need to do more
863 # work to find out the build config parameters.
864 if test x$host = x$build
866 build_auto=auto-host.h
869 # We create a subdir, then run autoconf in the subdir.
870 # To prevent recursion we set host and build for the new
871 # invocation of configure to the build for this invocation
878 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
879 *) realsrcdir=../${srcdir};;
881 saved_CFLAGS="${CFLAGS}"
882 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
883 ${realsrcdir}/configure \
884 --target=$target_alias --host=$build_alias --build=$build_alias
885 CFLAGS="${saved_CFLAGS}"
887 # We just finished tests for the build machine, so rename
888 # the file auto-build.h in the gcc directory.
889 mv auto-host.h ../auto-build.h
892 build_auto=auto-build.h
897 tm_file="${tm_file} defaults.h"
898 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
899 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
900 xm_file="ansidecl.h ${xm_file} ${tm_file}"
902 # Truncate the target if necessary
903 if test x$host_truncate_target != x; then
904 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
907 # Get the version trigger filename from the toplevel
908 if test "${with_gcc_version_trigger+set}" = set; then
909 gcc_version_trigger=$with_gcc_version_trigger
911 gcc_version_trigger=${srcdir}/version.c
914 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
915 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
917 # Compile in configure arguments.
918 if test -f configargs.h ; then
919 # Being re-configured.
920 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
921 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
923 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
925 cat > configargs.h <<EOF
926 /* Generated automatically. */
927 static const char configuration_arguments[] = "$gcc_config_arguments";
928 static const char thread_model[] = "$thread_file";
932 # Internationalization
934 VERSION="$gcc_version"
938 # Enable NLS support by default
940 [ --enable-nls use Native Language Support (default)],
943 # if cross compiling, disable NLS support.
944 # It's not worth the trouble, at least for now.
946 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
947 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
953 # Windows32 Registry support for specifying GCC installation paths.
954 AC_ARG_ENABLE(win32-registry,
955 [ --disable-win32-registry
956 disable lookup of installation paths in the
957 Registry on Windows hosts
958 --enable-win32-registry enable registry lookup (default)
959 --enable-win32-registry=KEY
960 use KEY instead of GCC version as the last portion
961 of the registry key],,)
963 win32 | pe | cygwin* | mingw32* | uwin*)
964 AC_MSG_CHECKING(whether windows registry support is requested)
965 if test "x$enable_win32_registry" != xno; then
966 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
967 [Define to 1 if installation paths should be looked up in Windows32
968 Registry. Ignored on non windows32 hosts.])
970 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
975 # Check if user specified a different registry key.
976 case "x${enable_win32_registry}" in
979 gcc_cv_win32_registry_key="$VERSION"
982 # no registry lookup.
983 gcc_cv_win32_registry_key=''
986 # user-specified key.
987 gcc_cv_win32_registry_key="$enable_win32_registry"
991 if test "x$enable_win32_registry" != xno; then
992 AC_MSG_CHECKING(registry key on windows hosts)
993 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
994 [Define to be the last portion of registry key on windows hosts.])
995 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1000 # Get an absolute path to the GCC top-level source directory
1006 # Conditionalize the makefile for this host machine.
1007 # Make-host contains the concatenation of all host makefile fragments
1008 # [there can be more than one]. This file is built by configure.frag.
1009 host_overrides=Make-host
1010 dep_host_xmake_file=
1011 for f in .. ${host_xmake_file}
1013 if test -f ${srcdir}/config/$f
1015 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1019 # Conditionalize the makefile for this target machine.
1020 # Make-target contains the concatenation of all host makefile fragments
1021 # [there can be more than one]. This file is built by configure.frag.
1022 target_overrides=Make-target
1024 for f in .. ${tmake_file}
1026 if test -f ${srcdir}/config/$f
1028 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1032 # If the host doesn't support symlinks, modify CC in
1033 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1034 # Otherwise, we can use "CC=$(CC)".
1036 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1038 cc_set_by_configure="\$(CC)"
1039 quoted_cc_set_by_configure="\$(CC)"
1040 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1041 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1044 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1046 symbolic_link="cp -p"
1050 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1051 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1052 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1053 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1057 out_object_file=`basename $out_file .c`.o
1060 for f in $tm_file; do
1063 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1065 tm_file_list="${tm_file_list} $f" ;;
1066 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1071 for f in $tm_p_file; do
1072 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1076 for f in $host_xm_file; do
1079 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1080 auto-host.h | defaults.h )
1081 host_xm_file_list="${host_xm_file_list} $f" ;;
1082 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1087 for f in $build_xm_file; do
1090 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1091 auto-build.h | auto-host.h | defaults.h )
1092 build_xm_file_list="${build_xm_file_list} $f" ;;
1093 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1097 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1098 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1099 CROSS= AC_SUBST(CROSS)
1100 ALL=all.internal AC_SUBST(ALL)
1101 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1102 if test x$host != x$target
1104 CROSS="-DCROSS_COMPILE"
1106 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1109 # If this is a cross-compiler that does not
1110 # have its own set of headers then define
1113 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1114 # This prevents libgcc2 from containing any code which requires libc
1117 if [test x$host != x$target] && [test x$with_headers = x]; then
1118 inhibit_libc=-Dinhibit_libc
1120 if [test x$with_newlib = xyes]; then
1121 inhibit_libc=-Dinhibit_libc
1124 AC_SUBST(inhibit_libc)
1126 # When building gcc with a cross-compiler, we need to adjust things so
1127 # that the generator programs are still built with the native compiler.
1128 # Also, we cannot run fixincludes or fix-header.
1129 # Note that the terminology here is wrong; it should be BUILD_* throughout.
1132 # These are the normal (build=host) settings:
1133 HOST_PREFIX= AC_SUBST(HOST_PREFIX)
1134 HOST_PREFIX_1=ignore- AC_SUBST(HOST_PREFIX_1)
1135 HOST_CC='$(CC)' AC_SUBST(HOST_CC)
1136 HOST_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(HOST_CFLAGS)
1138 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1139 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1141 # And these apply if build != host.
1142 if test x$build != x$host
1145 HOST_PREFIX_1=build-
1146 HOST_CC='$(CC_FOR_BUILD)'
1147 HOST_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1153 # Expand extra_headers to include complete path.
1154 # This substitutes for lots of t-* files.
1156 if test "x$extra_headers" = x
1159 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1160 for file in $extra_headers;
1162 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1166 if test x$use_collect2 = xno; then
1170 # Add a definition of USE_COLLECT2 if system wants one.
1171 if test x$use_collect2 != x
1173 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1174 xm_defines="${xm_defines} USE_COLLECT2"
1177 # If we have gas in the build tree, make a link to it.
1178 if test -f ../gas/Makefile; then
1179 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1182 # If we have nm and objdump in the build tree, make a link to them.
1183 if test -f ../binutils/Makefile; then
1184 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1185 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1188 # If we have ld in the build tree, make a link to it.
1189 if test -f ../ld/Makefile; then
1190 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1193 # Figure out what assembler we will be using.
1194 AC_MSG_CHECKING(what assembler to use)
1196 gcc_cv_gas_major_version=
1197 gcc_cv_gas_minor_version=
1198 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1199 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1200 if test -x "$DEFAULT_ASSEMBLER"; then
1201 gcc_cv_as="$DEFAULT_ASSEMBLER"
1202 elif test -x "$AS"; then
1204 elif test -x as$host_exeext; then
1205 # Build using assembler in the current directory.
1206 gcc_cv_as=./as$host_exeext
1207 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1208 # Single tree build which includes gas.
1209 for f in $gcc_cv_as_bfd_srcdir/configure $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1212 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1214 if test x$gcc_cv_gas_version != x; then
1219 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1220 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1221 gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.[0-9]*\.\([0-9]*\)"`
1225 if test "x$gcc_cv_as" = x; then
1226 # Search the same directories that the installed compiler will
1227 # search. Else we may find the wrong assembler and lose. If we
1228 # do not find a suitable assembler binary, then try the user's
1231 # Also note we have to check MD_EXEC_PREFIX before checking the
1232 # user's path. Unfortunately, there is no good way to get at the
1233 # value of MD_EXEC_PREFIX here. So we do a brute force search
1234 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1235 # to be fixed as part of the make/configure rewrite too.
1237 if test "x$exec_prefix" = xNONE; then
1238 if test "x$prefix" = xNONE; then
1239 test_prefix=/usr/local
1244 test_prefix=$exec_prefix
1247 # If the loop below does not find an assembler, then use whatever
1248 # one we can find in the users's path.
1250 if test "x$program_prefix" != xNONE; then
1251 gcc_cv_as=${program_prefix}as$host_exeext
1253 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1256 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1257 $test_prefix/lib/gcc-lib/$target_alias \
1258 /usr/lib/gcc/$target_alias/$gcc_version \
1259 /usr/lib/gcc/$target_alias \
1260 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1261 $test_prefix/$target_alias/bin"
1263 if test x$host = x$target; then
1264 test_dirs="$test_dirs \
1269 /bsd43/usr/lib/cmplrs/cc \
1270 /usr/cross64/usr/bin \
1271 /usr/lib/cmplrs/cc \
1272 /sysv/usr/lib/cmplrs/cc \
1273 /svr4/usr/lib/cmplrs/cc \
1277 for dir in $test_dirs; do
1278 if test -x $dir/as$host_exeext; then
1279 gcc_cv_as=$dir/as$host_exeext
1284 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1285 AC_MSG_RESULT("newly built gas")
1287 AC_MSG_RESULT($gcc_cv_as)
1290 # Figure out what linker we will be using.
1291 AC_MSG_CHECKING(what linker to use)
1293 gcc_cv_gld_major_version=
1294 gcc_cv_gld_minor_version=
1295 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1296 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1297 if test -x "$DEFAULT_LINKER"; then
1298 gcc_cv_ld="$DEFAULT_LINKER"
1299 elif test -x "$LD"; then
1301 elif test -x ld$host_exeext; then
1302 # Build using linker in the current directory.
1303 gcc_cv_ld=./ld$host_exeext
1304 elif test -f $gcc_cv_ld_gld_srcdir/configure.in -a -f ../ld/Makefile; then
1305 # Single tree build which includes ld.
1306 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
1309 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1311 if test x$gcc_cv_gld_version != x; then
1316 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1317 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1321 if test "x$gcc_cv_ld" = x; then
1322 # Search the same directories that the installed compiler will
1323 # search. Else we may find the wrong linker and lose. If we
1324 # do not find a suitable linker binary, then try the user's
1327 # Also note we have to check MD_EXEC_PREFIX before checking the
1328 # user's path. Unfortunately, there is no good way to get at the
1329 # value of MD_EXEC_PREFIX here. So we do a brute force search
1330 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1331 # to be fixed as part of the make/configure rewrite too.
1333 if test "x$exec_prefix" = xNONE; then
1334 if test "x$prefix" = xNONE; then
1335 test_prefix=/usr/local
1340 test_prefix=$exec_prefix
1343 # If the loop below does not find an linker, then use whatever
1344 # one we can find in the users's path.
1346 if test "x$program_prefix" != xNONE; then
1347 gcc_cv_ld=${program_prefix}ld$host_exeext
1349 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1352 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1353 $test_prefix/lib/gcc-lib/$target_alias \
1354 /usr/lib/gcc/$target_alias/$gcc_version \
1355 /usr/lib/gcc/$target_alias \
1356 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1357 $test_prefix/$target_alias/bin"
1359 if test x$host = x$target; then
1360 test_dirs="$test_dirs \
1365 /bsd43/usr/lib/cmplrs/cc \
1366 /usr/cross64/usr/bin \
1367 /usr/lib/cmplrs/cc \
1368 /sysv/usr/lib/cmplrs/cc \
1369 /svr4/usr/lib/cmplrs/cc \
1373 for dir in $test_dirs; do
1374 if test -x $dir/ld$host_exeext; then
1375 gcc_cv_ld=$dir/ld$host_exeext
1380 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
1381 AC_MSG_RESULT("newly built ld")
1383 AC_MSG_RESULT($gcc_cv_ld)
1386 # Figure out what nm we will be using.
1387 AC_MSG_CHECKING(what nm to use)
1388 if test -x nm$host_exeext; then
1389 gcc_cv_nm=./nm$host_exeext
1390 elif test "x$program_prefix" != xNONE; then
1391 gcc_cv_nm=${program_prefix}nm$host_exeext
1393 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1395 AC_MSG_RESULT($gcc_cv_nm)
1397 # Figure out what objdump we will be using.
1398 AC_MSG_CHECKING(what objdump to use)
1399 if test -x objdump$host_exeext; then
1400 gcc_cv_objdump=./objdump$host_exeext
1401 elif test "x$program_prefix" != xNONE; then
1402 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1404 gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
1406 AC_MSG_RESULT($gcc_cv_objdump)
1408 # Figure out what assembler alignment features are present.
1409 AC_MSG_CHECKING(assembler alignment features)
1410 gcc_cv_as_alignment_features=none
1411 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1412 # Gas version 2.6 and later support for .balign and .p2align.
1413 # bytes to skip when using .p2align.
1414 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1415 gcc_cv_as_alignment_features=".balign and .p2align"
1416 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1418 # Gas version 2.8 and later support specifying the maximum
1419 # bytes to skip when using .p2align.
1420 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1421 gcc_cv_as_alignment_features=".p2align including maximum skip"
1422 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1424 elif test x$gcc_cv_as != x; then
1425 # Check if we have .balign and .p2align
1426 echo ".balign 4" > conftest.s
1427 echo ".p2align 2" >> conftest.s
1428 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1429 gcc_cv_as_alignment_features=".balign and .p2align"
1430 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1432 rm -f conftest.s conftest.o
1433 # Check if specifying the maximum bytes to skip when
1434 # using .p2align is supported.
1435 echo ".p2align 4,,7" > conftest.s
1436 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1437 gcc_cv_as_alignment_features=".p2align including maximum skip"
1438 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1440 rm -f conftest.s conftest.o
1442 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1444 AC_MSG_CHECKING(assembler subsection support)
1445 gcc_cv_as_subsections=no
1446 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1447 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1448 gcc_cv_as_subsections="working .subsection -1"
1450 elif test x$gcc_cv_as != x; then
1451 # Check if we have .subsection
1452 echo ".subsection 1" > conftest.s
1453 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1454 gcc_cv_as_subsections=".subsection"
1455 if test x$gcc_cv_nm != x; then
1456 cat > conftest.s <<EOF
1457 conftest_label1: .word 0
1459 conftest_label2: .word 0
1462 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1463 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1464 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1465 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1468 gcc_cv_as_subsections="working .subsection -1"
1473 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1475 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1476 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1477 [Define if your assembler supports .subsection and .subsection -1 starts
1478 emitting at the beginning of your section.])
1480 AC_MSG_RESULT($gcc_cv_as_subsections)
1482 AC_MSG_CHECKING(assembler weak support)
1484 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1485 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1486 gcc_cv_as_weak="yes"
1488 elif test x$gcc_cv_as != x; then
1489 # Check if we have .weak
1490 echo " .weak foobar" > conftest.s
1491 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1492 gcc_cv_as_weak="yes"
1494 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1496 if test x"$gcc_cv_as_weak" = xyes; then
1497 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1499 AC_MSG_RESULT($gcc_cv_as_weak)
1501 AC_MSG_CHECKING(assembler hidden support)
1503 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1504 if test "$gcc_cv_gas_major_version" -eq 2 \
1505 -a "$gcc_cv_gas_minor_version" -eq 12 \
1506 -a "$gcc_cv_gas_patch_version" -ge 1 \
1507 -o "$gcc_cv_gas_major_version" -eq 2 \
1508 -a "$gcc_cv_gas_minor_version" -gt 12 \
1509 -o "$gcc_cv_gas_major_version" -gt 2 \
1510 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1511 gcc_cv_as_hidden="yes"
1513 elif test x$gcc_cv_as != x; then
1514 # Check if we have .hidden
1515 echo " .hidden foobar" > conftest.s
1516 echo "foobar:" >> conftest.s
1517 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1518 gcc_cv_as_hidden="yes"
1520 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1522 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1523 # This is irritatingly difficult to feature test for. Look for
1524 # the date string after the version number.
1525 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1526 if echo "$ld_ver" | grep GNU > /dev/null; then
1528 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1530 if test 0"$ld_date" -lt 20020404; then
1531 gcc_cv_as_hidden="no"
1536 if test x"$gcc_cv_as_hidden" = xyes; then
1537 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1538 [Define if your assembler supports .hidden.])
1540 AC_MSG_RESULT($gcc_cv_as_hidden)
1541 libgcc_visibility=$gcc_cv_as_hidden
1542 AC_SUBST(libgcc_visibility)
1544 AC_MSG_CHECKING(assembler leb128 support)
1546 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1547 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 11 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1548 gcc_cv_as_leb128="yes"
1550 elif test x$gcc_cv_as != x; then
1551 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1552 cat > conftest.s <<EOF
1560 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1561 gcc_cv_as_leb128="yes"
1563 # GAS versions before 2.11 do not support uleb128,
1564 # despite appearing to.
1565 # ??? There exists an elf-specific test that will crash
1566 # the assembler. Perhaps it's better to figure out whether
1567 # arbitrary sections are supported and try the test.
1568 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1569 if echo "$as_ver" | grep GNU > /dev/null; then
1571 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1572 as_major=`echo $as_ver | sed 's/\..*//'`
1573 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1575 if test $as_major -eq 2 -a $as_minor -lt 11; then
1576 gcc_cv_as_leb128="no"
1580 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1582 if test x"$gcc_cv_as_leb128" = xyes; then
1583 AC_DEFINE(HAVE_AS_LEB128, 1,
1584 [Define if your assembler supports .uleb128.])
1586 AC_MSG_RESULT($gcc_cv_as_leb128)
1588 AC_MSG_CHECKING(assembler eh_frame optimization)
1589 gcc_cv_as_eh_frame=no
1590 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1591 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1592 gcc_cv_as_eh_frame="yes"
1594 elif test x$gcc_cv_as != x; then
1595 # Check if this is GAS.
1596 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1597 rm -f a.out 2> /dev/null
1598 if echo "$as_ver" | grep GNU > /dev/null; then
1599 # Versions up to and including 2.11.0 may mis-optimize
1600 # .eh_frame data. Try something.
1601 cat > conftest.s <<EOF
1608 .section .eh_frame,"aw",@progbits
1610 .4byte .LECIE1-.LSCIE1
1624 .4byte .LEFDE1-.LASFDE1
1626 .4byte .LASFDE1-__FRAME_BEGIN__
1635 cat > conftest.lit <<EOF
1636 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1637 0010 01000000 12000000 18000000 00000000 ................
1638 0020 08000000 04080000 0044 .........D
1640 cat > conftest.big <<EOF
1641 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1642 0010 00000001 00000012 00000018 00000000 ................
1643 0020 00000008 04000000 0844 .........D
1645 # If the assembler didn't choke, and we can objdump,
1646 # and we got the correct data, then succeed.
1647 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1648 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1649 | tail -3 > conftest.got \
1650 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1651 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1653 gcc_cv_as_eh_frame="yes"
1655 gcc_cv_as_eh_frame="bad"
1656 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1657 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1658 [Define if your assembler mis-optimizes .eh_frame data.])
1664 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1666 AC_MSG_CHECKING(assembler section merging support)
1667 gcc_cv_as_shf_merge=no
1668 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1669 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1670 gcc_cv_as_shf_merge=yes
1672 elif test x$gcc_cv_as != x; then
1673 # Check if we support SHF_MERGE sections
1674 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1675 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1676 gcc_cv_as_shf_merge=yes
1678 rm -f conftest.s conftest.o
1680 if test x"$gcc_cv_as_shf_merge" = xyes; then
1681 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1682 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1684 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1687 # All TARGET_ABI_OSF targets.
1688 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
1689 AC_CACHE_CHECK([assembler supports explicit relocations],
1690 gcc_cv_as_explicit_relocs, [
1691 gcc_cv_as_explicit_relocs=unknown
1692 if test x$gcc_cv_gas_major_version != x \
1693 -a x$gcc_cv_gas_minor_version != x
1695 if test "$gcc_cv_gas_major_version" -eq 2 \
1696 -a "$gcc_cv_gas_minor_version" -ge 12 \
1697 -o "$gcc_cv_gas_major_version" -gt 2; then
1698 gcc_cv_as_explicit_relocs=yes
1700 elif test x$gcc_cv_as != x; then
1701 cat > conftest.s << 'EOF'
1704 extbl $3, $2, $3 !lituse_bytoff!1
1705 ldq $2, a($29) !literal!1
1706 ldq $4, b($29) !literal!2
1707 ldq_u $3, 0($2) !lituse_base!1
1708 ldq $27, f($29) !literal!5
1709 jsr $26, ($27), f !lituse_jsr!5
1710 ldah $29, 0($26) !gpdisp!3
1711 lda $0, c($29) !gprel
1712 ldah $1, d($29) !gprelhigh
1713 lda $1, d($1) !gprellow
1714 lda $29, 0($29) !gpdisp!3
1716 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1717 gcc_cv_as_explicit_relocs=yes
1719 gcc_cv_as_explicit_relocs=no
1721 rm -f conftest.s conftest.o
1724 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
1725 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
1726 [Define if your assembler supports explicit relocations.])
1730 AC_CACHE_CHECK([assembler .register pseudo-op support],
1731 gcc_cv_as_register_pseudo_op, [
1732 gcc_cv_as_register_pseudo_op=unknown
1733 if test x$gcc_cv_as != x; then
1734 # Check if we have .register
1735 echo ".register %g2, #scratch" > conftest.s
1736 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1737 gcc_cv_as_register_pseudo_op=yes
1739 gcc_cv_as_register_pseudo_op=no
1741 rm -f conftest.s conftest.o
1744 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1745 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1746 [Define if your assembler supports .register.])
1749 AC_CACHE_CHECK([assembler supports -relax],
1750 gcc_cv_as_relax_opt, [
1751 gcc_cv_as_relax_opt=unknown
1752 if test x$gcc_cv_as != x; then
1753 # Check if gas supports -relax
1754 echo ".text" > conftest.s
1755 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1756 gcc_cv_as_relax_opt=yes
1758 gcc_cv_as_relax_opt=no
1760 rm -f conftest.s conftest.o
1763 if test "x$gcc_cv_as_relax_opt" = xyes; then
1764 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1765 [Define if your assembler supports -relax option.])
1768 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
1769 gcc_cv_as_sparc_ua_pcrel, [
1770 gcc_cv_as_sparc_ua_pcrel=unknown
1771 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
1772 gcc_cv_as_sparc_ua_pcrel=no
1773 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
1774 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1775 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
1776 gcc_cv_as_sparc_ua_pcrel=yes
1778 rm -f conftest.s conftest.o conftest
1781 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1782 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
1783 [Define if your assembler and linker support unaligned PC relative relocs.])
1786 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
1787 gcc_cv_as_sparc_ua_pcrel_hidden, [
1788 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1789 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
1790 if test x$gcc_cv_objdump != x; then
1791 gcc_cv_as_sparc_ua_pcrel_hidden=no
1792 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
1793 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
1794 echo "foo: .skip 4" >> conftest.s
1795 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1796 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
1797 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
1798 | grep ' 31000000 07323334' > /dev/null 2>&1; then
1799 if $gcc_cv_objdump -R conftest 2> /dev/null \
1800 | grep 'DISP32' > /dev/null 2>&1; then
1803 gcc_cv_as_sparc_ua_pcrel_hidden=yes
1807 rm -f conftest.s conftest.o conftest
1809 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
1812 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
1813 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
1814 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
1817 if test "x$gcc_cv_as_flags64" != xno; then
1818 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1819 gcc_cv_as_offsetable_lo10, [
1820 gcc_cv_as_offsetable_lo10=unknown
1821 if test "x$gcc_cv_as" != x; then
1822 # Check if assembler has offsetable %lo()
1823 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1824 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1825 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1827 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1828 > /dev/null 2>&1; then
1829 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1830 gcc_cv_as_offsetable_lo10=no
1832 gcc_cv_as_offsetable_lo10=yes
1835 gcc_cv_as_offsetable_lo10=no
1837 rm -f conftest.s conftest.o conftest1.s conftest1.o
1840 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1841 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1842 [Define if your assembler supports offsetable %lo().])
1849 i[34567]86-*-* | x86_64-*-*)
1851 AC_MSG_CHECKING(assembler instructions)
1852 gcc_cv_as_instructions=
1853 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1854 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1855 gcc_cv_as_instructions="filds fists"
1857 elif test x$gcc_cv_as != x; then
1858 set "filds fists" "filds mem; fists mem"
1861 echo "$2" > conftest.s
1862 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1863 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1867 rm -f conftest.s conftest.o
1869 if test x"$gcc_cv_as_instructions" != x; then
1870 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1872 AC_MSG_RESULT($gcc_cv_as_instructions)
1874 AC_MSG_CHECKING(assembler GOTOFF in data directives)
1875 gcc_cv_as_gotoff_in_data=no
1876 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1878 if test "$gcc_cv_gas_major_version" -eq 2 \
1879 -a "$gcc_cv_gas_minor_version" -ge 11 \
1880 -o "$gcc_cv_gas_major_version" -gt 2; then
1881 gcc_cv_as_gotoff_in_data=yes
1883 elif test x$gcc_cv_as != x; then
1884 cat > conftest.s <<EOF
1891 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1892 gcc_cv_as_gotoff_in_data=yes
1895 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
1896 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
1897 [Define true if the assembler supports '.long foo@GOTOFF'.])
1898 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
1902 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1903 gcc_cv_as_dwarf2_debug_line=no
1904 # ??? Not all targets support dwarf2 debug_line, even within a version
1905 # of gas. Moreover, we need to emit a valid instruction to trigger any
1906 # info to the output file. So, as supported targets are added to gas 2.11,
1907 # add some instruction here to (also) show we expect this might work.
1908 # ??? Once 2.11 is released, probably need to add first known working
1909 # version to the per-target configury.
1911 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-*)
1918 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1920 if test "$gcc_cv_gas_major_version" -eq 2 \
1921 -a "$gcc_cv_gas_minor_version" -ge 11 \
1922 -o "$gcc_cv_gas_major_version" -gt 2 \
1923 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1924 && test x"$insn" != x ; then
1925 gcc_cv_as_dwarf2_debug_line="yes"
1927 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1928 echo ' .file 1 "conftest.s"' > conftest.s
1929 echo ' .loc 1 3 0' >> conftest.s
1930 echo " $insn" >> conftest.s
1931 # ??? This fails with non-gnu grep.
1932 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1933 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1934 # The .debug_line file table must be in the exact order that
1935 # we specified the files, since these indices are also used
1936 # by DW_AT_decl_file. Approximate this test by testing if
1937 # the assembler bitches if the same index is assigned twice.
1938 echo ' .file 1 "foo.s"' > conftest.s
1939 echo ' .file 1 "bar.s"' >> conftest.s
1940 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
1942 gcc_cv_as_dwarf2_debug_line="no"
1944 gcc_cv_as_dwarf2_debug_line="yes"
1947 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1949 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1950 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1951 [Define if your assembler supports dwarf2 .file/.loc directives,
1952 and preserves file table indices exactly as given.])
1954 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1956 AC_MSG_CHECKING(assembler --gdwarf2 support)
1957 gcc_cv_as_gdwarf2_flag=no
1958 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1960 if test "$gcc_cv_gas_major_version" -eq 2 \
1961 -a "$gcc_cv_gas_minor_version" -ge 11 \
1962 -o "$gcc_cv_gas_major_version" -gt 2 \
1963 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1964 && test x"$insn" != x ; then
1965 gcc_cv_as_gdwarf2_debug_flag="yes"
1967 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1968 echo '' > conftest.s
1969 # ??? This fails with non-gnu grep.
1970 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
1972 gcc_cv_as_gdwarf2_flag="yes"
1974 rm -f conftest.s conftest.o
1976 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
1977 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
1978 [Define if your assembler supports the --gdwarf2 option.])
1980 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
1982 AC_MSG_CHECKING(assembler --gstabs support)
1983 gcc_cv_as_gstabs_flag=no
1984 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1986 if test "$gcc_cv_gas_major_version" -eq 2 \
1987 -a "$gcc_cv_gas_minor_version" -ge 11 \
1988 -o "$gcc_cv_gas_major_version" -gt 2 \
1989 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1990 && test x"$insn" != x ; then
1991 gcc_cv_as_gstabs_debug_flag="yes"
1993 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1994 echo '' > conftest.s
1995 # ??? This fails with non-gnu grep.
1996 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
1997 gcc_cv_as_gstabs_flag="yes"
1999 rm -f conftest.s conftest.o
2001 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2002 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2003 [Define if your assembler supports the --gstabs option.])
2005 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2007 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2008 gcc_cv_ld_eh_frame_hdr=no
2009 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2010 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2011 gcc_cv_ld_eh_frame_hdr=yes
2013 elif test x$gcc_cv_ld != x; then
2014 # Check if linker supports --eh-frame-hdr option
2015 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2016 gcc_cv_ld_eh_frame_hdr=yes
2019 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2020 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2021 AC_MSG_CHECKING(whether linker eh_frame optimizations work properly)
2022 gcc_cv_ld_eh_frame_hdr_works=no
2023 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2024 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2025 gcc_cv_ld_eh_frame_hdr_works=yes
2027 elif test x$gcc_cv_ld != x; then
2028 for gcc_WS in 4 8; do
2029 cat > conftest.s <<EOF
2037 .section .eh_frame,"aw",@progbits
2039 .4byte .LECIE1-.LSCIE1
2057 .4byte .LEFDE1-.LASFDE1
2059 .4byte .LASFDE1-.Lframe1
2060 .${gcc_WS}byte .LFB1
2061 .${gcc_WS}byte .LFE1-.LFB1
2066 .4byte .LEFDE2-.LASFDE2
2068 .4byte .LASFDE2-.Lframe1
2069 .${gcc_WS}byte .LFB2
2070 .${gcc_WS}byte .LFE2-.LFB2
2075 .4byte .LEFDE3-.LASFDE3
2077 .4byte .LASFDE3-.Lframe1
2078 .${gcc_WS}byte .LFB3
2079 .${gcc_WS}byte .LFE3-.LFB3
2085 if ($gcc_cv_as -o conftest.o conftest.s; exit $?) 1>&AC_FD_CC 2>&1; then
2086 if ($gcc_cv_ld --eh-frame-hdr -shared -o conftest.so conftest.o; exit $?) 1>&AC_FD_CC 2>&1; then
2088 if $gcc_cv_objdump -h conftest.so 2>&AC_FD_CC \
2089 | grep 'eh_frame_hdr[ ]*0*[01][048cC][ ]' 1>&AC_FD_CC 2>&1; then
2090 gcc_cv_ld_eh_frame_hdr_works=yes; break
2092 $gcc_cv_objdump -h conftest.so 2>/dev/null | grep eh_frame_hdr 1>&AC_FD_CC 2>&1
2100 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr_works)
2102 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes \
2103 && test x"$gcc_cv_ld_eh_frame_hdr_works" = xyes; then
2104 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2105 [Define if your linker supports --eh-frame-hdr option.])
2108 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
2109 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2112 # Figure out what language subdirectories are present.
2113 # Look if the user specified --enable-languages="..."; if not, use
2114 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2116 # NB: embedded tabs in this IF block -- do not untabify
2117 if test x"${enable_languages+set}" != xset; then
2118 if test x"${LANGUAGES+set}" = xset; then
2119 enable_languages="${LANGUAGES}"
2120 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2123 enable_languages=all
2126 if test x"${enable_languages}" = x ||
2127 test x"${enable_languages}" = xyes;
2129 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2132 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2134 # First scan to see if an enabled language requires some other language.
2135 # We assume that a given config-lang.in will list all the language
2136 # front ends it requires, even if some are required indirectly.
2137 for lang in ${srcdir}/*/config-lang.in ..
2142 # The odd quoting in the next line works around
2143 # an apparent bug in bash 1.12 on linux.
2145 ${srcdir}/[*]/config-lang.in)
2148 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2149 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2150 for other in $this_lang_requires
2152 case ,${enable_languages}, in
2158 enable_languages="$enable_languages,$other"
2168 for lang in ${srcdir}/*/config-lang.in ..
2172 # The odd quoting in the next line works around
2173 # an apparent bug in bash 1.12 on linux.
2175 ${srcdir}/[*]/config-lang.in) ;;
2177 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2178 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2179 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2180 if test "x$lang_alias" = x
2182 echo "$lang doesn't set \$language." 1>&2
2185 case ${build_by_default},${enable_languages}, in
2186 *,$lang_alias,*) add_this_lang=yes ;;
2187 no,*) add_this_lang=no ;;
2188 *,all,*) add_this_lang=yes ;;
2189 *) add_this_lang=no ;;
2191 if test x"${add_this_lang}" = xyes; then
2193 ${srcdir}/ada/config-lang.in)
2194 if test x$have_gnat = xyes ; then
2195 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2199 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2208 # Make gthr-default.h if we have a thread file.
2210 if test $thread_file != single; then
2211 rm -f gthr-default.h
2212 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2213 gthread_flags=-DHAVE_GTHR_DEFAULT
2215 AC_SUBST(gthread_flags)
2217 # Find out what GC implementation we want, or may, use.
2219 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2226 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2231 echo "Using $GGC for garbage collection."
2233 # Use the system's zlib library.
2235 zlibinc="-I\$(srcdir)/../zlib"
2236 AC_ARG_WITH(system-zlib,
2237 [ --with-system-zlib use installed libz],
2244 dnl Very limited version of automake's enable-maintainer-mode
2246 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2247 dnl maintainer-mode is disabled by default
2248 AC_ARG_ENABLE(maintainer-mode,
2249 [ --enable-maintainer-mode
2250 enable make rules and dependencies not useful
2251 (and sometimes confusing) to the casual installer],
2252 maintainer_mode=$enableval,
2255 AC_MSG_RESULT($maintainer_mode)
2257 if test "$maintainer_mode" = "yes"; then
2264 # With Setjmp/Longjmp based exception handling.
2265 AC_ARG_ENABLE(sjlj-exceptions,
2266 [ --enable-sjlj-exceptions
2267 arrange to use setjmp/longjmp exception handling],
2268 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
2269 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
2270 [Define 0/1 to force the choice for exception handling model.])])
2272 # Make empty files to contain the specs and options for each language.
2273 # Then add #include lines to for a compiler that has specs and/or options.
2278 for subdir in . $subdirs
2280 if test -f $srcdir/$subdir/lang-specs.h; then
2281 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2283 if test -f $srcdir/$subdir/lang-options.h; then
2284 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2286 if test -f $srcdir/$subdir/$subdir-tree.def; then
2287 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2291 # These (without "all_") are set in each config-lang.in.
2292 # `language' must be a single word so is spelled singularly.
2297 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc'
2298 # List of language makefile fragments.
2301 # Add the language fragments.
2302 # Languages are added via two mechanisms. Some information must be
2303 # recorded in makefile variables, these are defined in config-lang.in.
2304 # We accumulate them and plug them into the main Makefile.
2305 # The other mechanism is a set of hooks for each of the main targets
2306 # like `clean', `install', etc.
2308 language_fragments="Make-lang"
2309 language_hooks="Make-hooks"
2311 for s in .. $subdirs
2320 . ${srcdir}/$s/config-lang.in
2321 if test "x$language" = x
2323 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2326 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2327 if test -f ${srcdir}/$s/Makefile.in
2328 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2330 all_languages="$all_languages $language"
2331 if test "x$boot_language" = xyes
2333 all_boot_languages="$all_boot_languages $language"
2335 all_compilers="$all_compilers $compilers"
2336 all_stagestuff="$all_stagestuff $stagestuff"
2337 all_outputs="$all_outputs $outputs"
2342 for language in .. $all_languages
2344 if test $language != ".."
2346 check_languages="$check_languages check-$language"
2350 # Since we can't use `::' targets, we link each language in
2351 # with a set of hooks, reached indirectly via lang.${target}.
2355 target_list="all.build all.cross start.encap rest.encap \
2356 info dvi generated-manpages \
2357 install-normal install-common install-info install-man \
2359 mostlyclean clean distclean extraclean maintainer-clean \
2360 stage1 stage2 stage3 stage4"
2361 for t in $target_list
2364 for lang in .. $all_languages
2366 if test $lang != ".."; then
2370 echo "lang.$t: $x" >> Make-hooks
2375 echo "dir ." > .gdbinit
2376 echo "dir ${srcdir}" >> .gdbinit
2377 if test x$gdb_needs_out_file_path = xyes
2379 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2381 if test "x$subdirs" != x; then
2384 echo "dir ${srcdir}/$s" >> .gdbinit
2387 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2389 # Define variables host_canonical and build_canonical
2390 # because some Cygnus local changes in the Makefile depend on them.
2391 build_canonical=${build}
2392 host_canonical=${host}
2394 if test "${host}" != "${target}" ; then
2395 target_subdir=${target_alias}/
2397 AC_SUBST(build_canonical)
2398 AC_SUBST(host_canonical)
2399 AC_SUBST(target_subdir)
2401 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2402 # absolute path for gcc_tooldir based on inserting the number of up-directory
2403 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2404 # $(libsubdir)/@(unlibsubdir) based path.
2405 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2406 # make and thus we'd get different behavior depending on where we built the
2408 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2409 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2411 changequote(<<, >>)dnl
2412 # An explanation of the sed strings:
2413 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2414 # -e 's|/$||' match a trailing forward slash and eliminates it
2415 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2416 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2418 # (*) Note this pattern overwrites the first character of the string
2419 # with a forward slash if one is not already present. This is not a
2420 # problem because the exact names of the sub-directories concerned is
2421 # unimportant, just the number of them matters.
2423 # The practical upshot of these patterns is like this:
2425 # prefix exec_prefix result
2426 # ------ ----------- ------
2428 # /foo/ /foo/bar ../
2429 # /foo /foo/bar/ ../
2430 # /foo/ /foo/bar/ ../
2431 # /foo /foo/bar/ugg ../../
2434 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2435 changequote([, ])dnl
2437 AC_SUBST(gcc_tooldir)
2440 # Find a directory in which to install a shared libgcc.
2442 AC_ARG_ENABLE(version-specific-runtime-libs,
2443 [ --enable-version-specific-runtime-libs
2444 specify that runtime libraries should be
2445 installed in a compiler-specific directory])
2447 AC_ARG_WITH(slibdir,
2448 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2449 slibdir="$with_slibdir",
2450 if test "${enable_version_specific_runtime_libs+set}" = set; then
2451 slibdir='$(libsubdir)'
2452 elif test "$host" != "$target"; then
2453 slibdir='$(build_tooldir)/lib'
2459 # Nothing to do for FLOAT_H, float_format already handled.
2463 # Process the language and host/target makefile fragments.
2464 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2466 # Substitute configuration variables
2468 AC_SUBST(all_boot_languages)
2469 AC_SUBST(all_compilers)
2470 AC_SUBST(all_lang_makefiles)
2471 AC_SUBST(all_languages)
2472 AC_SUBST(all_stagestuff)
2473 AC_SUBST(build_exeext)
2474 AC_SUBST(build_install_headers_dir)
2475 AC_SUBST(build_xm_file_list)
2476 AC_SUBST(build_xm_file)
2477 AC_SUBST(build_xm_defines)
2478 AC_SUBST(check_languages)
2479 AC_SUBST(cc_set_by_configure)
2480 AC_SUBST(quoted_cc_set_by_configure)
2481 AC_SUBST(cpp_install_dir)
2482 AC_SUBST(dep_host_xmake_file)
2483 AC_SUBST(dep_tmake_file)
2484 AC_SUBST(extra_headers_list)
2485 AC_SUBST(extra_objs)
2486 AC_SUBST(extra_parts)
2487 AC_SUBST(extra_passes)
2488 AC_SUBST(extra_programs)
2489 AC_SUBST(float_h_file)
2490 AC_SUBST(gcc_config_arguments)
2491 AC_SUBST(gcc_gxx_include_dir)
2492 AC_SUBST(libstdcxx_incdir)
2493 AC_SUBST(gcc_version)
2494 AC_SUBST(gcc_version_full)
2495 AC_SUBST(gcc_version_trigger)
2496 AC_SUBST(host_exeext)
2497 AC_SUBST(host_extra_gcc_objs)
2498 AC_SUBST(host_xm_file_list)
2499 AC_SUBST(host_xm_file)
2500 AC_SUBST(host_xm_defines)
2502 AC_SUBST(lang_options_files)
2503 AC_SUBST(lang_specs_files)
2504 AC_SUBST(lang_tree_files)
2505 AC_SUBST(local_prefix)
2507 AC_SUBST(objc_boehm_gc)
2509 AC_SUBST(out_object_file)
2510 AC_SUBST(stage_prefix_set_by_configure)
2511 AC_SUBST(quoted_stage_prefix_set_by_configure)
2512 AC_SUBST(symbolic_link)
2513 AC_SUBST(thread_file)
2514 AC_SUBST(tm_file_list)
2516 AC_SUBST(tm_p_file_list)
2519 AC_SUBST(xm_defines)
2520 AC_SUBST(target_alias)
2521 AC_SUBST(c_target_objs)
2522 AC_SUBST(cxx_target_objs)
2523 AC_SUBST(target_cpu_default)
2525 AC_SUBST_FILE(target_overrides)
2526 AC_SUBST_FILE(host_overrides)
2527 AC_SUBST_FILE(language_fragments)
2528 AC_SUBST_FILE(language_hooks)
2530 # Echo that links are built
2531 if test x$host = x$target
2539 if test x$host != x$build
2541 str3=" on a $build system"
2544 if test "x$str2" != x || test "x$str3" != x
2549 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2551 if test "x$str2" != x || test "x$str3" != x
2553 echo " ${str2}${str3}." 1>&2
2556 # Truncate the target if necessary
2557 if test x$host_truncate_target != x; then
2558 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2561 # Configure the subdirectories
2562 # AC_CONFIG_SUBDIRS($subdirs)
2564 # Create the Makefile
2565 # and configure language subdirectories
2566 AC_OUTPUT($all_outputs,
2568 case x$CONFIG_HEADERS in
2569 xauto-host.h:config.in)
2572 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2573 # bootstrapping and the installation procedure can still use
2574 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2575 # FLAGS_TO_PASS has been modified to solve the problem there.
2576 # This is virtually a duplicate of what happens in configure.lang; we do
2577 # an extra check to make sure this only happens if ln -s can be used.
2578 if test "$symbolic_link" = "ln -s"; then
2579 for d in .. ${subdirs} fixinc ; do
2580 if test $d != ..; then
2583 for t in stage1 stage2 stage3 stage4 include
2586 $symbolic_link ../$t $t 2>/dev/null
2592 # Avoid having to add intl to our include paths.
2593 if test -f intl/libintl.h; then
2594 echo creating libintl.h
2595 echo '#include "intl/libintl.h"' >libintl.h
2599 symbolic_link='$symbolic_link'