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 $check) ;;
217 # Enable some checks by default for development versions of GCC
218 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1;])
219 if test x$ac_checking != x ; then
220 AC_DEFINE(ENABLE_CHECKING, 1,
221 [Define if you want more run-time sanity checks. This one gets a grab
222 bag of miscellaneous but relatively cheap checks.])
224 if test x$ac_tree_checking != x ; then
225 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
226 [Define if you want all operations on trees (the basic data
227 structure of the front ends) to be checked for dynamic type safety
228 at runtime. This is moderately expensive.])
230 if test x$ac_rtl_checking != x ; then
231 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
232 [Define if you want all operations on RTL (the basic data structure
233 of the optimizer and back end) to be checked for dynamic type safety
234 at runtime. This is quite expensive.])
236 if test x$ac_gc_checking != x ; then
237 AC_DEFINE(ENABLE_GC_CHECKING, 1,
238 [Define if you want the garbage collector to do object poisoning and
239 other memory allocation checks. This is quite expensive.])
241 if test x$ac_gc_always_collect != x ; then
242 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
243 [Define if you want the garbage collector to operate in maximally
244 paranoid mode, validating the entire heap and collecting garbage at
245 every opportunity. This is extremely expensive.])
250 [ --disable-cpp don't provide a user-visible C preprocessor],
251 [], [enable_cpp=yes])
253 AC_ARG_WITH(cpp_install_dir,
254 [ --with-cpp-install-dir=DIR
255 install the user visible C preprocessor in DIR
256 (relative to PREFIX) as well as PREFIX/bin],
257 [if test x$withval = xyes; then
258 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
259 elif test x$withval != xno; then
260 cpp_install_dir=$withval
263 # Enable Multibyte Characters for C/C++
264 AC_ARG_ENABLE(c-mbchar,
265 [ --enable-c-mbchar enable multibyte characters for C and C++],
266 if test x$enable_c_mbchar != xno; then
267 AC_DEFINE(MULTIBYTE_CHARS, 1,
268 [Define if you want the C and C++ compilers to support multibyte
269 character sets for source code.])
273 # Pass with no value to take the default
274 # Pass with a value to specify a thread package
275 AC_ARG_ENABLE(threads,
276 [ --enable-threads enable thread usage for target GCC
277 --enable-threads=LIB use LIB thread package for target GCC],,
280 enable_threads_flag=$enable_threads
281 # Check if a valid thread package
282 case x${enable_threads_flag} in
285 target_thread_file='single'
289 target_thread_file=''
291 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
292 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
293 target_thread_file=$enable_threads_flag
296 echo "$enable_threads is an unknown thread package" 1>&2
301 AC_ARG_ENABLE(objc-gc,
302 [ --enable-objc-gc enable the use of Boehm's garbage collector with
303 the GNU Objective-C runtime],
304 if test x$enable_objc_gc = xno; then
312 [ --with-dwarf2 force the default debug format to be DWARF 2],
313 dwarf2="$with_dwarf2",
316 AC_ARG_ENABLE(shared,
317 [ --disable-shared don't provide a shared libgcc],
319 case $enable_shared in
323 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
324 for pkg in $enableval; do
325 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
332 ], [enable_shared=yes])
333 AC_SUBST(enable_shared)
335 # Determine the host, build, and target systems
338 # Set program_transform_name
341 # Find the native compiler
344 # autoconf is lame and doesn't give us any substitution variable for this.
345 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
346 NO_MINUS_C_MINUS_O=yes
348 OUTPUT_OPTION='-o $@'
350 AC_SUBST(NO_MINUS_C_MINUS_O)
351 AC_SUBST(OUTPUT_OPTION)
353 # See if GNAT has been installed
356 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
357 ac_cv_prog_cc_no_long_long,
358 [save_CFLAGS="$CFLAGS"
359 CFLAGS="-Wno-long-long"
360 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
361 ac_cv_prog_cc_no_long_long=no)
362 CFLAGS="$save_CFLAGS"])
364 if test x$have_gnat != xno ; then
365 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
366 ac_cv_prog_adac_no_long_long,
367 [cat >conftest.adb <<EOF
368 procedure conftest is begin null; end conftest;
370 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
371 ac_cv_prog_adac_no_long_long=yes
373 ac_cv_prog_adac_no_long_long=no
377 ac_cv_prog_adac_no_long_long=yes
381 if test $ac_cv_prog_cc_no_long_long = yes && \
382 test $ac_cv_prog_adac_no_long_long = yes ; then
383 strict1_warn="-pedantic -Wno-long-long"
385 AC_SUBST(strict1_warn)
395 # sizeof(char) is 1 by definition.
396 gcc_AC_COMPILE_CHECK_SIZEOF(short)
397 gcc_AC_COMPILE_CHECK_SIZEOF(int)
398 gcc_AC_COMPILE_CHECK_SIZEOF(long)
399 if test $ac_cv_c_long_long = yes; then
400 gcc_AC_COMPILE_CHECK_SIZEOF(long long)
402 if test $ac_cv_c___int64 = yes; then
403 gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
408 # If the native compiler is GCC, we can enable warnings even in stage1.
409 # That's useful for people building cross-compilers, or just running a
412 if test "x$GCC" = "xyes"; then
413 warn_cflags='$(GCC_WARN_CFLAGS)'
415 AC_SUBST(warn_cflags)
417 # Stage specific cflags for build.
423 stage1_cflags="-Wa,-J"
429 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
430 # sources; use -no-cpp-precomp to get to GNU cpp.
431 # Apple's GCC has bugs in designated initializer handling, so disable
433 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
436 AC_SUBST(stage1_cflags)
440 AC_MSG_CHECKING([whether a default assembler was specified])
441 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
442 if test x"$gas_flag" = x"no"; then
443 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
445 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
451 AC_MSG_CHECKING([whether a default linker was specified])
452 if test x"${DEFAULT_LINKER+set}" = x"set"; then
453 if test x"$gnu_ld_flag" = x"no"; then
454 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
456 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
462 AC_MSG_CHECKING(for GNU C library)
463 AC_CACHE_VAL(gcc_cv_glibc,
465 [#include <features.h>],[
466 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
467 #error Not a GNU C library system
471 AC_MSG_RESULT($gcc_cv_glibc)
472 if test $gcc_cv_glibc = yes; then
473 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
476 # Find some useful tools
485 gcc_AC_HEADER_STDBOOL
488 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
489 fcntl.h unistd.h sys/file.h sys/time.h \
490 sys/resource.h sys/param.h sys/times.h sys/stat.h \
491 direct.h malloc.h langinfo.h)
493 # Check for thread headers.
494 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
495 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
497 # These tests can't be done till we know if we have limits.h.
499 gcc_AC_C_COMPILE_ENDIAN
500 gcc_AC_C_FLOAT_FORMAT
502 # See if we have the mktemp command.
503 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
505 # Do we have a single-tree copy of texinfo?
506 if test -f $srcdir/../texinfo/Makefile.in; then
507 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
508 gcc_cv_prog_makeinfo_modern=yes
509 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
511 # See if makeinfo has been installed and is modern enough
512 # that we can use it.
513 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
514 [GNU texinfo.* \([0-9][0-9.]*\)],
518 if test $gcc_cv_prog_makeinfo_modern = no; then
520 *** Makeinfo is missing or too old.
521 *** Info documentation will not be built.])
524 BUILD_INFO=info AC_SUBST(BUILD_INFO)
527 # Is pod2man recent enough to regenerate manpages?
528 AC_MSG_CHECKING([for recent Pod::Man])
529 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
531 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
538 dnl Don't use AC_PROG_LEX; we insist on flex.
539 dnl LEXLIB is not useful in gcc.
540 if test -f $srcdir/../flex/skel.c; then
541 FLEX='$(objdir)/../flex/flex'
543 AC_CHECK_PROG(FLEX, flex, flex, false)
547 # The -L switch is so bison can find its skeleton file.
548 if test -f $srcdir/../bison/bison.simple; then
549 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
551 AC_CHECK_PROG(BISON, bison, bison, false)
554 # These libraries may be used by collect2.
555 # We may need a special search path to get them linked.
556 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
558 for libs in '' -lld -lmld \
559 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
560 '-L/usr/lib/cmplrs/cc3.11 -lmld'
563 AC_TRY_LINK_FUNC(ldopen,
564 [gcc_cv_collect2_libs="$libs"; break])
567 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
568 case $gcc_cv_collect2_libs in
570 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
572 AC_SUBST(COLLECT2_LIBS)
574 # When building Ada code on Alpha, we need exc_resume which is usually in
575 # -lexc. So test for it.
578 AC_SEARCH_LIBS(exc_resume, exc)
581 AC_SUBST(GNAT_LIBEXC)
583 # See if the stage1 system preprocessor understands the ANSI C
584 # preprocessor stringification operator. (Used by symcat.h.)
587 # Use <inttypes.h> only if it exists,
588 # doesn't clash with <sys/types.h>, and declares intmax_t.
589 AC_MSG_CHECKING(for inttypes.h)
590 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
592 [#include <sys/types.h>
593 #include <inttypes.h>],
595 [gcc_cv_header_inttypes_h=yes],
596 gcc_cv_header_inttypes_h=no)])
597 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
598 if test $gcc_cv_header_inttypes_h = yes; then
599 AC_DEFINE(HAVE_INTTYPES_H, 1,
600 [Define if you have a working <inttypes.h> header file.])
603 dnl Disabled until we have a complete test for buggy enum bitfields.
604 dnl gcc_AC_C_ENUM_BF_UNSIGNED
606 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
607 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
608 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat)
610 AC_CHECK_TYPE(ssize_t, int)
612 # Try to determine the array type of the second argument of getgroups
613 # for the target system (int or gid_t).
615 if test "${target}" = "${build}"; then
616 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
619 # This condition may need some tweaking. It should include all
620 # targets where the array type of the second argument of getgroups
621 # is int and the type of gid_t is not equivalent to int.
622 *-*-sunos* | *-*-ultrix*)
623 TARGET_GETGROUPS_T=int
626 TARGET_GETGROUPS_T=gid_t
630 AC_SUBST(TARGET_GETGROUPS_T)
632 gcc_AC_FUNC_PRINTF_PTR
637 *** UWIN may not be used as a host platform because
638 *** linking with posix.dll is not allowed by the GNU GPL])
641 # Under VMS, vfork works very different than on Unix. The standard test
642 # won't work, and it isn't easily adaptable. It makes more sense to
644 ac_cv_func_vfork_works=yes
648 AC_FUNC_MMAP_ANYWHERE
653 # We will need to find libiberty.h and ansidecl.h
654 saved_CFLAGS="$CFLAGS"
655 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
656 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
657 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
658 fprintf_unlocked strstr errno \
659 malloc realloc calloc free basename getopt clock, , ,[
660 #include "ansidecl.h"
661 #include "system.h"])
663 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
664 #include "ansidecl.h"
666 #ifdef HAVE_SYS_RESOURCE_H
667 #include <sys/resource.h>
671 gcc_AC_CHECK_DECLS(times, , ,[
672 #include "ansidecl.h"
674 #ifdef HAVE_SYS_TIMES_H
675 #include <sys/times.h>
679 # More time-related stuff.
680 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
682 #include "ansidecl.h"
684 #ifdef HAVE_SYS_TIMES_H
685 #include <sys/times.h>
687 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
688 if test $ac_cv_struct_tms = yes; then
689 AC_DEFINE(HAVE_STRUCT_TMS, 1,
690 [Define if <sys/times.h> defines struct tms.])
693 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
694 # revisit after autoconf 2.50.
695 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
697 #include "ansidecl.h"
699 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
700 if test $gcc_cv_type_clock_t = yes; then
701 AC_DEFINE(HAVE_CLOCK_T, 1,
702 [Define if <time.h> defines clock_t.])
705 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
706 CFLAGS="$saved_CFLAGS"
708 # mkdir takes a single argument on some systems.
709 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
719 build_install_headers_dir=install-headers-tar
724 host_truncate_target=
727 # Decode the host machine, then the target machine.
728 # For the host machine, we save the xm_file variable as host_xm_file;
729 # then we decode the target machine and forget everything else
730 # that came from the host machine.
731 for machine in $build $host $target; do
732 . ${srcdir}/config.gcc
735 extra_objs="${host_extra_objs} ${extra_objs}"
737 # Default the target-machine variables that were not explicitly set.
738 if test x"$tm_file" = x
739 then tm_file=$cpu_type/$cpu_type.h; fi
741 if test x"$extra_headers" = x
742 then extra_headers=; fi
744 if test x$md_file = x
745 then md_file=$cpu_type/$cpu_type.md; fi
747 if test x$out_file = x
748 then out_file=$cpu_type/$cpu_type.c; fi
750 if test x"$tmake_file" = x
751 then tmake_file=$cpu_type/t-$cpu_type
754 if test x"$dwarf2" = xyes
755 then tm_file="$tm_file tm-dwarf2.h"
758 if test x$float_format = x
759 then float_format=i64
762 if test $float_format = none
763 then float_h_file=Makefile.in
764 else float_h_file=float-$float_format.h
767 # Handle cpp installation.
768 if test x$enable_cpp != xno
770 tmake_file="$tmake_file t-install-cpp"
773 # Say what files are being used for the output code and MD file.
774 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
775 echo "Using \`$srcdir/config/$md_file' as machine description file."
777 # If any of the xm_file variables contain nonexistent files, warn
778 # about them and drop them.
781 for x in $build_xm_file; do
782 if test -f $srcdir/config/$x
784 else AC_MSG_WARN($srcdir/config/$x does not exist.)
790 for x in $host_xm_file; do
791 if test -f $srcdir/config/$x
793 else AC_MSG_WARN($srcdir/config/$x does not exist.)
799 for x in $xm_file; do
800 if test -f $srcdir/config/$x
802 else AC_MSG_WARN($srcdir/config/$x does not exist.)
808 for f in $tm_file; do
811 if test $count = ax; then
812 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
814 echo "Using the following target machine macro files:"
815 for f in $tm_file; do
816 echo " $srcdir/config/$f"
821 for f in $host_xm_file; do
824 if test $count = a; then
826 elif test $count = ax; then
827 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
829 echo "Using the following host machine macro files:"
830 for f in $host_xm_file; do
831 echo " $srcdir/config/$f"
835 if test "$host_xm_file" != "$build_xm_file"; then
837 for f in $build_xm_file; do
840 if test $count = a; then
842 elif test $count = ax; then
843 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
845 echo "Using the following build machine macro files:"
846 for f in $build_xm_file; do
847 echo " $srcdir/config/$f"
852 if test x$thread_file = x; then
853 if test x$target_thread_file != x; then
854 thread_file=$target_thread_file
860 # auto-host.h is the file containing items generated by autoconf and is
861 # the first file included by config.h.
862 # If host=build, it is correct to have hconfig include auto-host.h
863 # as well. If host!=build, we are in error and need to do more
864 # work to find out the build config parameters.
865 if test x$host = x$build
867 build_auto=auto-host.h
870 # We create a subdir, then run autoconf in the subdir.
871 # To prevent recursion we set host and build for the new
872 # invocation of configure to the build for this invocation
879 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
880 *) realsrcdir=../${srcdir};;
882 saved_CFLAGS="${CFLAGS}"
883 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
884 ${realsrcdir}/configure \
885 --target=$target_alias --host=$build_alias --build=$build_alias
886 CFLAGS="${saved_CFLAGS}"
888 # We just finished tests for the build machine, so rename
889 # the file auto-build.h in the gcc directory.
890 mv auto-host.h ../auto-build.h
893 build_auto=auto-build.h
898 tm_file="${tm_file} defaults.h"
899 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
900 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
901 xm_file="ansidecl.h ${xm_file} ${tm_file}"
903 # Truncate the target if necessary
904 if test x$host_truncate_target != x; then
905 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
908 # Get the version trigger filename from the toplevel
909 if test "${with_gcc_version_trigger+set}" = set; then
910 gcc_version_trigger=$with_gcc_version_trigger
912 gcc_version_trigger=${srcdir}/version.c
915 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
916 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
918 # Compile in configure arguments.
919 if test -f configargs.h ; then
920 # Being re-configured.
921 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
922 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
924 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
926 cat > configargs.h <<EOF
927 /* Generated automatically. */
928 static const char configuration_arguments[] = "$gcc_config_arguments";
929 static const char thread_model[] = "$thread_file";
933 # Internationalization
935 VERSION="$gcc_version"
939 # Enable NLS support by default
941 [ --enable-nls use Native Language Support (default)],
944 # if cross compiling, disable NLS support.
945 # It's not worth the trouble, at least for now.
947 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
948 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
954 # Windows32 Registry support for specifying GCC installation paths.
955 AC_ARG_ENABLE(win32-registry,
956 [ --disable-win32-registry
957 disable lookup of installation paths in the
958 Registry on Windows hosts
959 --enable-win32-registry enable registry lookup (default)
960 --enable-win32-registry=KEY
961 use KEY instead of GCC version as the last portion
962 of the registry key],,)
964 win32 | pe | cygwin* | mingw32* | uwin*)
965 AC_MSG_CHECKING(whether windows registry support is requested)
966 if test "x$enable_win32_registry" != xno; then
967 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
968 [Define to 1 if installation paths should be looked up in Windows32
969 Registry. Ignored on non windows32 hosts.])
971 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
976 # Check if user specified a different registry key.
977 case "x${enable_win32_registry}" in
980 gcc_cv_win32_registry_key="$VERSION"
983 # no registry lookup.
984 gcc_cv_win32_registry_key=''
987 # user-specified key.
988 gcc_cv_win32_registry_key="$enable_win32_registry"
992 if test "x$enable_win32_registry" != xno; then
993 AC_MSG_CHECKING(registry key on windows hosts)
994 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
995 [Define to be the last portion of registry key on windows hosts.])
996 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1001 # Get an absolute path to the GCC top-level source directory
1007 # Conditionalize the makefile for this host machine.
1008 # Make-host contains the concatenation of all host makefile fragments
1009 # [there can be more than one]. This file is built by configure.frag.
1010 host_overrides=Make-host
1011 dep_host_xmake_file=
1012 for f in .. ${host_xmake_file}
1014 if test -f ${srcdir}/config/$f
1016 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1020 # Conditionalize the makefile for this target machine.
1021 # Make-target contains the concatenation of all host makefile fragments
1022 # [there can be more than one]. This file is built by configure.frag.
1023 target_overrides=Make-target
1025 for f in .. ${tmake_file}
1027 if test -f ${srcdir}/config/$f
1029 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1033 # If the host doesn't support symlinks, modify CC in
1034 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1035 # Otherwise, we can use "CC=$(CC)".
1037 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1039 cc_set_by_configure="\$(CC)"
1040 quoted_cc_set_by_configure="\$(CC)"
1041 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1042 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1045 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1047 symbolic_link="cp -p"
1051 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1052 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1053 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1054 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1058 out_object_file=`basename $out_file .c`.o
1061 for f in $tm_file; do
1064 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1066 tm_file_list="${tm_file_list} $f" ;;
1067 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1072 for f in $tm_p_file; do
1073 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1077 for f in $host_xm_file; do
1080 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1081 auto-host.h | defaults.h )
1082 host_xm_file_list="${host_xm_file_list} $f" ;;
1083 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1088 for f in $build_xm_file; do
1091 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1092 auto-build.h | auto-host.h | defaults.h )
1093 build_xm_file_list="${build_xm_file_list} $f" ;;
1094 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1098 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1099 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1100 CROSS= AC_SUBST(CROSS)
1101 ALL=all.internal AC_SUBST(ALL)
1102 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1103 if test x$host != x$target
1105 CROSS="-DCROSS_COMPILE"
1107 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1110 # If this is a cross-compiler that does not
1111 # have its own set of headers then define
1114 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1115 # This prevents libgcc2 from containing any code which requires libc
1118 if [test x$host != x$target] && [test x$with_headers = x]; then
1119 inhibit_libc=-Dinhibit_libc
1121 if [test x$with_newlib = xyes]; then
1122 inhibit_libc=-Dinhibit_libc
1125 AC_SUBST(inhibit_libc)
1127 # When building gcc with a cross-compiler, we need to adjust things so
1128 # that the generator programs are still built with the native compiler.
1129 # Also, we cannot run fixincludes or fix-header.
1130 # Note that the terminology here is wrong; it should be BUILD_* throughout.
1133 # These are the normal (build=host) settings:
1134 HOST_PREFIX= AC_SUBST(HOST_PREFIX)
1135 HOST_PREFIX_1=ignore- AC_SUBST(HOST_PREFIX_1)
1136 HOST_CC='$(CC)' AC_SUBST(HOST_CC)
1137 HOST_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(HOST_CFLAGS)
1139 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1140 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1142 # And these apply if build != host.
1143 if test x$build != x$host
1146 HOST_PREFIX_1=build-
1147 HOST_CC='$(CC_FOR_BUILD)'
1148 HOST_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1154 # Expand extra_headers to include complete path.
1155 # This substitutes for lots of t-* files.
1157 if test "x$extra_headers" = x
1160 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1161 for file in $extra_headers;
1163 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1167 if test x$use_collect2 = xno; then
1171 # Add a definition of USE_COLLECT2 if system wants one.
1172 if test x$use_collect2 != x
1174 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1175 xm_defines="${xm_defines} USE_COLLECT2"
1178 # If we have gas in the build tree, make a link to it.
1179 if test -f ../gas/Makefile; then
1180 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1183 # If we have nm and objdump in the build tree, make a link to them.
1184 if test -f ../binutils/Makefile; then
1185 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1186 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1189 # If we have ld in the build tree, make a link to it.
1190 if test -f ../ld/Makefile; then
1191 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1194 # Figure out what assembler we will be using.
1195 AC_MSG_CHECKING(what assembler to use)
1197 gcc_cv_gas_major_version=
1198 gcc_cv_gas_minor_version=
1199 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1200 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1201 if test -x "$DEFAULT_ASSEMBLER"; then
1202 gcc_cv_as="$DEFAULT_ASSEMBLER"
1203 elif test -x "$AS"; then
1205 elif test -x as$host_exeext; then
1206 # Build using assembler in the current directory.
1207 gcc_cv_as=./as$host_exeext
1208 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1209 # Single tree build which includes gas.
1210 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
1213 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1215 if test x$gcc_cv_gas_version != x; then
1220 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1221 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[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 -a "$gcc_cv_gas_minor_version" -ge 10 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1505 gcc_cv_as_hidden="yes"
1507 elif test x$gcc_cv_as != x; then
1508 # Check if we have .hidden
1509 echo " .hidden foobar" > conftest.s
1510 echo "foobar:" >> conftest.s
1511 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1512 gcc_cv_as_hidden="yes"
1514 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1516 if test x"$gcc_cv_as_hidden" = xyes; then
1517 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1518 [Define if your assembler supports .hidden.])
1520 AC_MSG_RESULT($gcc_cv_as_hidden)
1521 libgcc_visibility=$gcc_cv_as_hidden
1522 AC_SUBST(libgcc_visibility)
1524 AC_MSG_CHECKING(assembler leb128 support)
1526 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1527 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 11 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1528 gcc_cv_as_leb128="yes"
1530 elif test x$gcc_cv_as != x; then
1531 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1532 cat > conftest.s <<EOF
1540 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1541 gcc_cv_as_leb128="yes"
1543 # GAS versions before 2.11 do not support uleb128,
1544 # despite appearing to.
1545 # ??? There exists an elf-specific test that will crash
1546 # the assembler. Perhaps it's better to figure out whether
1547 # arbitrary sections are supported and try the test.
1548 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1549 if echo "$as_ver" | grep GNU > /dev/null; then
1551 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1552 as_major=`echo $as_ver | sed 's/\..*//'`
1553 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1555 if test $as_major -eq 2 -a $as_minor -lt 11; then
1556 gcc_cv_as_leb128="no"
1560 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1562 if test x"$gcc_cv_as_leb128" = xyes; then
1563 AC_DEFINE(HAVE_AS_LEB128, 1,
1564 [Define if your assembler supports .uleb128.])
1566 AC_MSG_RESULT($gcc_cv_as_leb128)
1568 AC_MSG_CHECKING(assembler eh_frame optimization)
1569 gcc_cv_as_eh_frame=no
1570 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1571 if test "$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
1572 gcc_cv_as_eh_frame="yes"
1574 elif test x$gcc_cv_as != x; then
1575 # Check if this is GAS.
1576 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1577 rm -f a.out 2> /dev/null
1578 if echo "$as_ver" | grep GNU > /dev/null; then
1579 # Versions up to and including 2.11.0 may mis-optimize
1580 # .eh_frame data. Try something.
1581 cat > conftest.s <<EOF
1588 .section .eh_frame,"aw",@progbits
1590 .4byte .LECIE1-.LSCIE1
1604 .4byte .LEFDE1-.LASFDE1
1606 .4byte .LASFDE1-__FRAME_BEGIN__
1615 cat > conftest.lit <<EOF
1616 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1617 0010 01000000 12000000 18000000 00000000 ................
1618 0020 08000000 04080000 0044 .........D
1620 cat > conftest.big <<EOF
1621 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1622 0010 00000001 00000012 00000018 00000000 ................
1623 0020 00000008 04000000 0844 .........D
1625 # If the assembler didn't choke, and we can objdump,
1626 # and we got the correct data, then succeed.
1627 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1628 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1629 | tail -3 > conftest.got \
1630 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1631 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1633 gcc_cv_as_eh_frame="yes"
1635 gcc_cv_as_eh_frame="bad"
1636 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1637 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1638 [Define if your assembler mis-optimizes .eh_frame data.])
1644 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1646 AC_MSG_CHECKING(assembler section merging support)
1647 gcc_cv_as_shf_merge=no
1648 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1649 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1650 gcc_cv_as_shf_merge=yes
1652 elif test x$gcc_cv_as != x; then
1653 # Check if we support SHF_MERGE sections
1654 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1655 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1656 gcc_cv_as_shf_merge=yes
1658 rm -f conftest.s conftest.o
1660 if test x"$gcc_cv_as_shf_merge" = xyes; then
1661 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1662 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1664 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1667 # All TARGET_ABI_OSF targets.
1668 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
1669 AC_CACHE_CHECK([assembler supports explicit relocations],
1670 gcc_cv_as_explicit_relocs, [
1671 gcc_cv_as_explicit_relocs=unknown
1672 if test x$gcc_cv_gas_major_version != x \
1673 -a x$gcc_cv_gas_minor_version != x
1675 if test "$gcc_cv_gas_major_version" -eq 2 \
1676 -a "$gcc_cv_gas_minor_version" -ge 12 \
1677 -o "$gcc_cv_gas_major_version" -gt 2; then
1678 gcc_cv_as_explicit_relocs=yes
1680 elif test x$gcc_cv_as != x; then
1681 cat > conftest.s << 'EOF'
1684 extbl $3, $2, $3 !lituse_bytoff!1
1685 ldq $2, a($29) !literal!1
1686 ldq $4, b($29) !literal!2
1687 ldq_u $3, 0($2) !lituse_base!1
1688 ldq $27, f($29) !literal!5
1689 jsr $26, ($27), f !lituse_jsr!5
1690 ldah $29, 0($26) !gpdisp!3
1691 lda $0, c($29) !gprel
1692 ldah $1, d($29) !gprelhigh
1693 lda $1, d($1) !gprellow
1694 lda $29, 0($29) !gpdisp!3
1696 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1697 gcc_cv_as_explicit_relocs=yes
1699 gcc_cv_as_explicit_relocs=no
1701 rm -f conftest.s conftest.o
1704 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
1705 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
1706 [Define if your assembler supports explicit relocations.])
1710 AC_CACHE_CHECK([assembler .register pseudo-op support],
1711 gcc_cv_as_register_pseudo_op, [
1712 gcc_cv_as_register_pseudo_op=unknown
1713 if test x$gcc_cv_as != x; then
1714 # Check if we have .register
1715 echo ".register %g2, #scratch" > conftest.s
1716 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1717 gcc_cv_as_register_pseudo_op=yes
1719 gcc_cv_as_register_pseudo_op=no
1721 rm -f conftest.s conftest.o
1724 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1725 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1726 [Define if your assembler supports .register.])
1729 AC_CACHE_CHECK([assembler supports -relax],
1730 gcc_cv_as_relax_opt, [
1731 gcc_cv_as_relax_opt=unknown
1732 if test x$gcc_cv_as != x; then
1733 # Check if gas supports -relax
1734 echo ".text" > conftest.s
1735 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1736 gcc_cv_as_relax_opt=yes
1738 gcc_cv_as_relax_opt=no
1740 rm -f conftest.s conftest.o
1743 if test "x$gcc_cv_as_relax_opt" = xyes; then
1744 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1745 [Define if your assembler supports -relax option.])
1748 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
1749 gcc_cv_as_sparc_ua_pcrel, [
1750 gcc_cv_as_sparc_ua_pcrel=unknown
1751 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
1752 gcc_cv_as_sparc_ua_pcrel=no
1753 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
1754 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1755 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
1756 gcc_cv_as_sparc_ua_pcrel=yes
1758 rm -f conftest.s conftest.o conftest
1761 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1762 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
1763 [Define if your assembler and linker support unaligned PC relative relocs.])
1766 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
1767 gcc_cv_as_sparc_ua_pcrel_hidden, [
1768 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1769 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
1770 if test x$gcc_cv_objdump != x; then
1771 gcc_cv_as_sparc_ua_pcrel_hidden=no
1772 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
1773 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
1774 echo "foo: .skip 4" >> conftest.s
1775 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1776 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
1777 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
1778 | grep ' 31000000 07323334' > /dev/null 2>&1; then
1779 if $gcc_cv_objdump -R conftest 2> /dev/null \
1780 | grep 'DISP32' > /dev/null 2>&1; then
1783 gcc_cv_as_sparc_ua_pcrel_hidden=yes
1787 rm -f conftest.s conftest.o conftest
1789 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
1792 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
1793 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
1794 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
1797 if test "x$gcc_cv_as_flags64" != xno; then
1798 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1799 gcc_cv_as_offsetable_lo10, [
1800 gcc_cv_as_offsetable_lo10=unknown
1801 if test "x$gcc_cv_as" != x; then
1802 # Check if assembler has offsetable %lo()
1803 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1804 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1805 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1807 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1808 > /dev/null 2>&1; then
1809 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1810 gcc_cv_as_offsetable_lo10=no
1812 gcc_cv_as_offsetable_lo10=yes
1815 gcc_cv_as_offsetable_lo10=no
1817 rm -f conftest.s conftest.o conftest1.s conftest1.o
1820 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1821 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1822 [Define if your assembler supports offsetable %lo().])
1829 i[34567]86-*-* | x86_64-*-*)
1831 AC_MSG_CHECKING(assembler instructions)
1832 gcc_cv_as_instructions=
1833 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1834 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1835 gcc_cv_as_instructions="filds fists"
1837 elif test x$gcc_cv_as != x; then
1838 set "filds fists" "filds mem; fists mem"
1841 echo "$2" > conftest.s
1842 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1843 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1847 rm -f conftest.s conftest.o
1849 if test x"$gcc_cv_as_instructions" != x; then
1850 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1852 AC_MSG_RESULT($gcc_cv_as_instructions)
1854 AC_MSG_CHECKING(assembler GOTOFF in data directives)
1855 gcc_cv_as_gotoff_in_data=no
1856 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1858 if test "$gcc_cv_gas_major_version" -eq 2 \
1859 -a "$gcc_cv_gas_minor_version" -ge 11 \
1860 -o "$gcc_cv_gas_major_version" -gt 2; then
1861 gcc_cv_as_gotoff_in_data=yes
1863 elif test x$gcc_cv_as != x; then
1864 cat > conftest.s <<EOF
1871 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1872 gcc_cv_as_gotoff_in_data=yes
1875 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
1876 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
1877 [Define true if the assembler supports '.long foo@GOTOFF'.])
1878 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
1882 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1883 gcc_cv_as_dwarf2_debug_line=no
1884 # ??? Not all targets support dwarf2 debug_line, even within a version
1885 # of gas. Moreover, we need to emit a valid instruction to trigger any
1886 # info to the output file. So, as supported targets are added to gas 2.11,
1887 # add some instruction here to (also) show we expect this might work.
1888 # ??? Once 2.11 is released, probably need to add first known working
1889 # version to the per-target configury.
1891 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-* | hppa*-*-*)
1898 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1900 if test "$gcc_cv_gas_major_version" -eq 2 \
1901 -a "$gcc_cv_gas_minor_version" -ge 11 \
1902 -o "$gcc_cv_gas_major_version" -gt 2 \
1903 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1904 && test x"$insn" != x ; then
1905 gcc_cv_as_dwarf2_debug_line="yes"
1907 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1908 echo ' .file 1 "conftest.s"' > conftest.s
1909 echo ' .loc 1 3 0' >> conftest.s
1910 echo " $insn" >> conftest.s
1911 # ??? This fails with non-gnu grep.
1912 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1913 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1914 # The .debug_line file table must be in the exact order that
1915 # we specified the files, since these indices are also used
1916 # by DW_AT_decl_file. Approximate this test by testing if
1917 # the assembler bitches if the same index is assigned twice.
1918 echo ' .file 1 "foo.s"' > conftest.s
1919 echo ' .file 1 "bar.s"' >> conftest.s
1920 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
1922 gcc_cv_as_dwarf2_debug_line="no"
1924 gcc_cv_as_dwarf2_debug_line="yes"
1927 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1929 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1930 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1931 [Define if your assembler supports dwarf2 .file/.loc directives,
1932 and preserves file table indices exactly as given.])
1934 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1936 AC_MSG_CHECKING(assembler --gdwarf2 support)
1937 gcc_cv_as_gdwarf2_flag=no
1938 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1940 if test "$gcc_cv_gas_major_version" -eq 2 \
1941 -a "$gcc_cv_gas_minor_version" -ge 11 \
1942 -o "$gcc_cv_gas_major_version" -gt 2 \
1943 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1944 && test x"$insn" != x ; then
1945 gcc_cv_as_gdwarf2_debug_flag="yes"
1947 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1948 echo '' > conftest.s
1949 # ??? This fails with non-gnu grep.
1950 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
1952 gcc_cv_as_gdwarf2_flag="yes"
1954 rm -f conftest.s conftest.o
1956 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
1957 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
1958 [Define if your assembler supports the --gdwarf2 option.])
1960 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
1962 AC_MSG_CHECKING(assembler --gstabs support)
1963 gcc_cv_as_gstabs_flag=no
1964 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1966 if test "$gcc_cv_gas_major_version" -eq 2 \
1967 -a "$gcc_cv_gas_minor_version" -ge 11 \
1968 -o "$gcc_cv_gas_major_version" -gt 2 \
1969 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1970 && test x"$insn" != x ; then
1971 gcc_cv_as_gstabs_debug_flag="yes"
1973 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1974 echo '' > conftest.s
1975 # ??? This fails with non-gnu grep.
1976 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
1977 gcc_cv_as_gstabs_flag="yes"
1979 rm -f conftest.s conftest.o
1981 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
1982 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
1983 [Define if your assembler supports the --gstabs option.])
1985 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
1987 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
1988 gcc_cv_ld_eh_frame_hdr=no
1989 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
1990 if test "$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
1991 gcc_cv_ld_eh_frame_hdr=yes
1993 elif test x$gcc_cv_ld != x; then
1994 # Check if linker supports --eh-frame-hdr option
1995 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
1996 gcc_cv_ld_eh_frame_hdr=yes
1999 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2000 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2001 [Define if your linker supports --eh-frame-hdr option.])
2003 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2005 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
2006 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2009 # Figure out what language subdirectories are present.
2010 # Look if the user specified --enable-languages="..."; if not, use
2011 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2013 # NB: embedded tabs in this IF block -- do not untabify
2014 if test x"${enable_languages+set}" != xset; then
2015 if test x"${LANGUAGES+set}" = xset; then
2016 enable_languages="${LANGUAGES}"
2017 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2020 enable_languages=all
2023 if test x"${enable_languages}" = x ||
2024 test x"${enable_languages}" = xyes;
2026 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2029 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2031 # First scan to see if an enabled language requires some other language.
2032 # We assume that a given config-lang.in will list all the language
2033 # front ends it requires, even if some are required indirectly.
2034 for lang in ${srcdir}/*/config-lang.in ..
2039 # The odd quoting in the next line works around
2040 # an apparent bug in bash 1.12 on linux.
2042 ${srcdir}/[*]/config-lang.in)
2045 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2046 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2047 for other in $this_lang_requires
2049 case ,${enable_languages}, in
2055 enable_languages="$enable_languages,$other"
2065 for lang in ${srcdir}/*/config-lang.in ..
2069 # The odd quoting in the next line works around
2070 # an apparent bug in bash 1.12 on linux.
2072 ${srcdir}/[*]/config-lang.in) ;;
2074 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2075 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2076 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2077 if test "x$lang_alias" = x
2079 echo "$lang doesn't set \$language." 1>&2
2082 case ${build_by_default},${enable_languages}, in
2083 *,$lang_alias,*) add_this_lang=yes ;;
2084 no,*) add_this_lang=no ;;
2085 *,all,*) add_this_lang=yes ;;
2086 *) add_this_lang=no ;;
2088 if test x"${add_this_lang}" = xyes; then
2090 ${srcdir}/ada/config-lang.in)
2091 if test x$have_gnat = xyes ; then
2092 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2096 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2105 # Make gthr-default.h if we have a thread file.
2107 if test $thread_file != single; then
2108 rm -f gthr-default.h
2109 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2110 gthread_flags=-DHAVE_GTHR_DEFAULT
2112 AC_SUBST(gthread_flags)
2114 # Find out what GC implementation we want, or may, use.
2116 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2123 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2128 echo "Using $GGC for garbage collection."
2130 # Use the system's zlib library.
2132 zlibinc="-I\$(srcdir)/../zlib"
2133 AC_ARG_WITH(system-zlib,
2134 [ --with-system-zlib use installed libz],
2141 dnl Very limited version of automake's enable-maintainer-mode
2143 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2144 dnl maintainer-mode is disabled by default
2145 AC_ARG_ENABLE(maintainer-mode,
2146 [ --enable-maintainer-mode
2147 enable make rules and dependencies not useful
2148 (and sometimes confusing) to the casual installer],
2149 maintainer_mode=$enableval,
2152 AC_MSG_RESULT($maintainer_mode)
2154 if test "$maintainer_mode" = "yes"; then
2161 # With Setjmp/Longjmp based exception handling.
2162 AC_ARG_ENABLE(sjlj-exceptions,
2163 [ --enable-sjlj-exceptions
2164 arrange to use setjmp/longjmp exception handling],
2165 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
2166 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
2167 [Define 0/1 to force the choice for exception handling model.])])
2169 # Make empty files to contain the specs and options for each language.
2170 # Then add #include lines to for a compiler that has specs and/or options.
2175 for subdir in . $subdirs
2177 if test -f $srcdir/$subdir/lang-specs.h; then
2178 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2180 if test -f $srcdir/$subdir/lang-options.h; then
2181 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2183 if test -f $srcdir/$subdir/$subdir-tree.def; then
2184 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2188 # These (without "all_") are set in each config-lang.in.
2189 # `language' must be a single word so is spelled singularly.
2194 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc'
2195 # List of language makefile fragments.
2198 # Add the language fragments.
2199 # Languages are added via two mechanisms. Some information must be
2200 # recorded in makefile variables, these are defined in config-lang.in.
2201 # We accumulate them and plug them into the main Makefile.
2202 # The other mechanism is a set of hooks for each of the main targets
2203 # like `clean', `install', etc.
2205 language_fragments="Make-lang"
2206 language_hooks="Make-hooks"
2208 for s in .. $subdirs
2217 . ${srcdir}/$s/config-lang.in
2218 if test "x$language" = x
2220 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2223 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2224 if test -f ${srcdir}/$s/Makefile.in
2225 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2227 all_languages="$all_languages $language"
2228 if test "x$boot_language" = xyes
2230 all_boot_languages="$all_boot_languages $language"
2232 all_compilers="$all_compilers $compilers"
2233 all_stagestuff="$all_stagestuff $stagestuff"
2234 all_outputs="$all_outputs $outputs"
2239 for language in .. $all_languages
2241 if test $language != ".."
2243 check_languages="$check_languages check-$language"
2247 # Since we can't use `::' targets, we link each language in
2248 # with a set of hooks, reached indirectly via lang.${target}.
2252 target_list="all.build all.cross start.encap rest.encap \
2253 info dvi generated-manpages \
2254 install-normal install-common install-info install-man \
2256 mostlyclean clean distclean extraclean maintainer-clean \
2257 stage1 stage2 stage3 stage4"
2258 for t in $target_list
2261 for lang in .. $all_languages
2263 if test $lang != ".."; then
2267 echo "lang.$t: $x" >> Make-hooks
2272 echo "dir ." > .gdbinit
2273 echo "dir ${srcdir}" >> .gdbinit
2274 if test x$gdb_needs_out_file_path = xyes
2276 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2278 if test "x$subdirs" != x; then
2281 echo "dir ${srcdir}/$s" >> .gdbinit
2284 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2286 # Define variables host_canonical and build_canonical
2287 # because some Cygnus local changes in the Makefile depend on them.
2288 build_canonical=${build}
2289 host_canonical=${host}
2291 if test "${host}" != "${target}" ; then
2292 target_subdir=${target_alias}/
2294 AC_SUBST(build_canonical)
2295 AC_SUBST(host_canonical)
2296 AC_SUBST(target_subdir)
2298 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2299 # absolute path for gcc_tooldir based on inserting the number of up-directory
2300 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2301 # $(libsubdir)/@(unlibsubdir) based path.
2302 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2303 # make and thus we'd get different behavior depending on where we built the
2305 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2306 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2308 changequote(<<, >>)dnl
2309 # An explanation of the sed strings:
2310 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2311 # -e 's|/$||' match a trailing forward slash and eliminates it
2312 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2313 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2315 # (*) Note this pattern overwrites the first character of the string
2316 # with a forward slash if one is not already present. This is not a
2317 # problem because the exact names of the sub-directories concerned is
2318 # unimportant, just the number of them matters.
2320 # The practical upshot of these patterns is like this:
2322 # prefix exec_prefix result
2323 # ------ ----------- ------
2325 # /foo/ /foo/bar ../
2326 # /foo /foo/bar/ ../
2327 # /foo/ /foo/bar/ ../
2328 # /foo /foo/bar/ugg ../../
2331 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2332 changequote([, ])dnl
2334 AC_SUBST(gcc_tooldir)
2337 # Find a directory in which to install a shared libgcc.
2339 AC_ARG_ENABLE(version-specific-runtime-libs,
2340 [ --enable-version-specific-runtime-libs
2341 specify that runtime libraries should be
2342 installed in a compiler-specific directory])
2344 AC_ARG_WITH(slibdir,
2345 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2346 slibdir="$with_slibdir",
2347 if test "${enable_version_specific_runtime_libs+set}" = set; then
2348 slibdir='$(libsubdir)'
2349 elif test "$host" != "$target"; then
2350 slibdir='$(build_tooldir)/lib'
2356 # Nothing to do for FLOAT_H, float_format already handled.
2360 # Process the language and host/target makefile fragments.
2361 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2363 # Substitute configuration variables
2365 AC_SUBST(all_boot_languages)
2366 AC_SUBST(all_compilers)
2367 AC_SUBST(all_lang_makefiles)
2368 AC_SUBST(all_languages)
2369 AC_SUBST(all_stagestuff)
2370 AC_SUBST(build_exeext)
2371 AC_SUBST(build_install_headers_dir)
2372 AC_SUBST(build_xm_file_list)
2373 AC_SUBST(build_xm_file)
2374 AC_SUBST(build_xm_defines)
2375 AC_SUBST(check_languages)
2376 AC_SUBST(cc_set_by_configure)
2377 AC_SUBST(quoted_cc_set_by_configure)
2378 AC_SUBST(cpp_install_dir)
2379 AC_SUBST(dep_host_xmake_file)
2380 AC_SUBST(dep_tmake_file)
2381 AC_SUBST(extra_headers_list)
2382 AC_SUBST(extra_objs)
2383 AC_SUBST(extra_parts)
2384 AC_SUBST(extra_passes)
2385 AC_SUBST(extra_programs)
2386 AC_SUBST(float_h_file)
2387 AC_SUBST(gcc_config_arguments)
2388 AC_SUBST(gcc_gxx_include_dir)
2389 AC_SUBST(libstdcxx_incdir)
2390 AC_SUBST(gcc_version)
2391 AC_SUBST(gcc_version_full)
2392 AC_SUBST(gcc_version_trigger)
2393 AC_SUBST(host_exeext)
2394 AC_SUBST(host_extra_gcc_objs)
2395 AC_SUBST(host_xm_file_list)
2396 AC_SUBST(host_xm_file)
2397 AC_SUBST(host_xm_defines)
2399 AC_SUBST(lang_options_files)
2400 AC_SUBST(lang_specs_files)
2401 AC_SUBST(lang_tree_files)
2402 AC_SUBST(local_prefix)
2404 AC_SUBST(objc_boehm_gc)
2406 AC_SUBST(out_object_file)
2407 AC_SUBST(stage_prefix_set_by_configure)
2408 AC_SUBST(quoted_stage_prefix_set_by_configure)
2409 AC_SUBST(symbolic_link)
2410 AC_SUBST(thread_file)
2411 AC_SUBST(tm_file_list)
2413 AC_SUBST(tm_p_file_list)
2416 AC_SUBST(xm_defines)
2417 AC_SUBST(target_alias)
2418 AC_SUBST(c_target_objs)
2419 AC_SUBST(cxx_target_objs)
2420 AC_SUBST(target_cpu_default)
2422 AC_SUBST_FILE(target_overrides)
2423 AC_SUBST_FILE(host_overrides)
2424 AC_SUBST_FILE(language_fragments)
2425 AC_SUBST_FILE(language_hooks)
2427 # Echo that links are built
2428 if test x$host = x$target
2436 if test x$host != x$build
2438 str3=" on a $build system"
2441 if test "x$str2" != x || test "x$str3" != x
2446 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2448 if test "x$str2" != x || test "x$str3" != x
2450 echo " ${str2}${str3}." 1>&2
2453 # Truncate the target if necessary
2454 if test x$host_truncate_target != x; then
2455 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2458 # Configure the subdirectories
2459 # AC_CONFIG_SUBDIRS($subdirs)
2461 # Create the Makefile
2462 # and configure language subdirectories
2463 AC_OUTPUT($all_outputs,
2465 case x$CONFIG_HEADERS in
2466 xauto-host.h:config.in)
2469 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2470 # bootstrapping and the installation procedure can still use
2471 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2472 # FLAGS_TO_PASS has been modified to solve the problem there.
2473 # This is virtually a duplicate of what happens in configure.lang; we do
2474 # an extra check to make sure this only happens if ln -s can be used.
2475 if test "$symbolic_link" = "ln -s"; then
2476 for d in .. ${subdirs} fixinc ; do
2477 if test $d != ..; then
2480 for t in stage1 stage2 stage3 stage4 include
2483 $symbolic_link ../$t $t 2>/dev/null
2489 # Avoid having to add intl to our include paths.
2490 if test -f intl/libintl.h; then
2491 echo creating libintl.h
2492 echo '#include "intl/libintl.h"' >libintl.h
2496 symbolic_link='$symbolic_link'