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 --host=$build --build=$build
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$gcc_cv_as" = x -a x$build = x$host; then
1226 # Search the same directories that the installed compiler will
1227 # search. Else we may find the wrong assembler and lose. If we
1228 # do not find a suitable assembler binary, then try the user's
1231 # Also note we have to check MD_EXEC_PREFIX before checking the
1232 # user's path. Unfortunately, there is no good way to get at the
1233 # value of MD_EXEC_PREFIX here. So we do a brute force search
1234 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1235 # to be fixed as part of the make/configure rewrite too.
1237 if test "x$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$gcc_cv_ld" = x -a x$build = x$host; then
1322 # Search the same directories that the installed compiler will
1323 # search. Else we may find the wrong linker and lose. If we
1324 # do not find a suitable linker binary, then try the user's
1327 # Also note we have to check MD_EXEC_PREFIX before checking the
1328 # user's path. Unfortunately, there is no good way to get at the
1329 # value of MD_EXEC_PREFIX here. So we do a brute force search
1330 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1331 # to be fixed as part of the make/configure rewrite too.
1333 if test "x$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$host_exeext
1390 elif test x$build = x$host; then
1391 if test "x$program_prefix" != xNONE; then
1392 gcc_cv_nm=${program_prefix}nm$host_exeext
1394 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1397 AC_MSG_RESULT($gcc_cv_nm)
1399 # Figure out what objdump we will be using.
1400 AC_MSG_CHECKING(what objdump to use)
1401 if test -x objdump$host_exeext; then
1402 gcc_cv_objdump=./objdump$host_exeext
1403 elif test x$build = x$host; then
1404 if test "x$program_prefix" != xNONE; then
1405 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1407 gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
1410 AC_MSG_RESULT($gcc_cv_objdump)
1412 # Figure out what assembler alignment features are present.
1413 AC_MSG_CHECKING(assembler alignment features)
1414 gcc_cv_as_alignment_features=none
1415 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1416 # Gas version 2.6 and later support for .balign and .p2align.
1417 # bytes to skip when using .p2align.
1418 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1419 gcc_cv_as_alignment_features=".balign and .p2align"
1420 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1422 # Gas version 2.8 and later support specifying the maximum
1423 # bytes to skip when using .p2align.
1424 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1425 gcc_cv_as_alignment_features=".p2align including maximum skip"
1426 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1428 elif test x$gcc_cv_as != x; then
1429 # Check if we have .balign and .p2align
1430 echo ".balign 4" > conftest.s
1431 echo ".p2align 2" >> conftest.s
1432 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1433 gcc_cv_as_alignment_features=".balign and .p2align"
1434 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1436 rm -f conftest.s conftest.o
1437 # Check if specifying the maximum bytes to skip when
1438 # using .p2align is supported.
1439 echo ".p2align 4,,7" > conftest.s
1440 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1441 gcc_cv_as_alignment_features=".p2align including maximum skip"
1442 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1444 rm -f conftest.s conftest.o
1446 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1448 AC_MSG_CHECKING(assembler subsection support)
1449 gcc_cv_as_subsections=no
1450 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1451 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1452 gcc_cv_as_subsections="working .subsection -1"
1454 elif test x$gcc_cv_as != x; then
1455 # Check if we have .subsection
1456 echo ".subsection 1" > conftest.s
1457 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1458 gcc_cv_as_subsections=".subsection"
1459 if test x$gcc_cv_nm != x; then
1460 cat > conftest.s <<EOF
1461 conftest_label1: .word 0
1463 conftest_label2: .word 0
1466 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1467 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1468 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1469 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1472 gcc_cv_as_subsections="working .subsection -1"
1477 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1479 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1480 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1481 [Define if your assembler supports .subsection and .subsection -1 starts
1482 emitting at the beginning of your section.])
1484 AC_MSG_RESULT($gcc_cv_as_subsections)
1486 AC_MSG_CHECKING(assembler weak support)
1488 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1489 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1490 gcc_cv_as_weak="yes"
1492 elif test x$gcc_cv_as != x; then
1493 # Check if we have .weak
1494 echo " .weak foobar" > conftest.s
1495 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1496 gcc_cv_as_weak="yes"
1498 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1500 if test x"$gcc_cv_as_weak" = xyes; then
1501 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1503 AC_MSG_RESULT($gcc_cv_as_weak)
1505 AC_MSG_CHECKING(assembler hidden support)
1507 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1508 if test "$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
1509 gcc_cv_as_hidden="yes"
1511 elif test x$gcc_cv_as != x; then
1512 # Check if we have .hidden
1513 echo " .hidden foobar" > conftest.s
1514 echo "foobar:" >> conftest.s
1515 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1516 gcc_cv_as_hidden="yes"
1518 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1520 if test x"$gcc_cv_as_hidden" = xyes; then
1521 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1522 [Define if your assembler supports .hidden.])
1524 AC_MSG_RESULT($gcc_cv_as_hidden)
1525 libgcc_visibility=$gcc_cv_as_hidden
1526 AC_SUBST(libgcc_visibility)
1528 AC_MSG_CHECKING(assembler leb128 support)
1530 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1531 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 11 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1532 gcc_cv_as_leb128="yes"
1534 elif test x$gcc_cv_as != x; then
1535 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1536 cat > conftest.s <<EOF
1544 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1545 gcc_cv_as_leb128="yes"
1547 # GAS versions before 2.11 do not support uleb128,
1548 # despite appearing to.
1549 # ??? There exists an elf-specific test that will crash
1550 # the assembler. Perhaps it's better to figure out whether
1551 # arbitrary sections are supported and try the test.
1552 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1553 if echo "$as_ver" | grep GNU > /dev/null; then
1555 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1556 as_major=`echo $as_ver | sed 's/\..*//'`
1557 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1559 if test $as_major -eq 2 -a $as_minor -lt 11; then
1560 gcc_cv_as_leb128="no"
1564 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1566 if test x"$gcc_cv_as_leb128" = xyes; then
1567 AC_DEFINE(HAVE_AS_LEB128, 1,
1568 [Define if your assembler supports .uleb128.])
1570 AC_MSG_RESULT($gcc_cv_as_leb128)
1572 AC_MSG_CHECKING(assembler eh_frame optimization)
1573 gcc_cv_as_eh_frame=no
1574 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1575 if test "$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
1576 gcc_cv_as_eh_frame="yes"
1578 elif test x$gcc_cv_as != x; then
1579 # Check if this is GAS.
1580 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1581 rm -f a.out 2> /dev/null
1582 if echo "$as_ver" | grep GNU > /dev/null; then
1583 # Versions up to and including 2.11.0 may mis-optimize
1584 # .eh_frame data. Try something.
1585 cat > conftest.s <<EOF
1592 .section .eh_frame,"aw",@progbits
1594 .4byte .LECIE1-.LSCIE1
1608 .4byte .LEFDE1-.LASFDE1
1610 .4byte .LASFDE1-__FRAME_BEGIN__
1619 cat > conftest.lit <<EOF
1620 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1621 0010 01000000 12000000 18000000 00000000 ................
1622 0020 08000000 04080000 0044 .........D
1624 cat > conftest.big <<EOF
1625 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1626 0010 00000001 00000012 00000018 00000000 ................
1627 0020 00000008 04000000 0844 .........D
1629 # If the assembler didn't choke, and we can objdump,
1630 # and we got the correct data, then succeed.
1631 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1632 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1633 | tail -3 > conftest.got \
1634 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1635 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1637 gcc_cv_as_eh_frame="yes"
1639 gcc_cv_as_eh_frame="bad"
1640 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1641 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1642 [Define if your assembler mis-optimizes .eh_frame data.])
1648 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1650 AC_MSG_CHECKING(assembler section merging support)
1651 gcc_cv_as_shf_merge=no
1652 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1653 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1654 gcc_cv_as_shf_merge=yes
1656 elif test x$gcc_cv_as != x; then
1657 # Check if we support SHF_MERGE sections
1658 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1659 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1660 gcc_cv_as_shf_merge=yes
1662 rm -f conftest.s conftest.o
1664 if test x"$gcc_cv_as_shf_merge" = xyes; then
1665 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1666 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1668 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1671 # All TARGET_ABI_OSF targets.
1672 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
1673 AC_CACHE_CHECK([assembler supports explicit relocations],
1674 gcc_cv_as_explicit_relocs, [
1675 gcc_cv_as_explicit_relocs=unknown
1676 if test x$gcc_cv_gas_major_version != x \
1677 -a x$gcc_cv_gas_minor_version != x
1679 if test "$gcc_cv_gas_major_version" -eq 2 \
1680 -a "$gcc_cv_gas_minor_version" -ge 12 \
1681 -o "$gcc_cv_gas_major_version" -gt 2; then
1682 gcc_cv_as_explicit_relocs=yes
1684 elif test x$gcc_cv_as != x; then
1685 cat > conftest.s << 'EOF'
1688 extbl $3, $2, $3 !lituse_bytoff!1
1689 ldq $2, a($29) !literal!1
1690 ldq $4, b($29) !literal!2
1691 ldq_u $3, 0($2) !lituse_base!1
1692 ldq $27, f($29) !literal!5
1693 jsr $26, ($27), f !lituse_jsr!5
1694 ldah $29, 0($26) !gpdisp!3
1695 lda $0, c($29) !gprel
1696 ldah $1, d($29) !gprelhigh
1697 lda $1, d($1) !gprellow
1698 lda $29, 0($29) !gpdisp!3
1700 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1701 gcc_cv_as_explicit_relocs=yes
1703 gcc_cv_as_explicit_relocs=no
1705 rm -f conftest.s conftest.o
1708 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
1709 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
1710 [Define if your assembler supports explicit relocations.])
1714 AC_CACHE_CHECK([assembler .register pseudo-op support],
1715 gcc_cv_as_register_pseudo_op, [
1716 gcc_cv_as_register_pseudo_op=unknown
1717 if test x$gcc_cv_as != x; then
1718 # Check if we have .register
1719 echo ".register %g2, #scratch" > conftest.s
1720 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1721 gcc_cv_as_register_pseudo_op=yes
1723 gcc_cv_as_register_pseudo_op=no
1725 rm -f conftest.s conftest.o
1728 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1729 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1730 [Define if your assembler supports .register.])
1733 AC_CACHE_CHECK([assembler supports -relax],
1734 gcc_cv_as_relax_opt, [
1735 gcc_cv_as_relax_opt=unknown
1736 if test x$gcc_cv_as != x; then
1737 # Check if gas supports -relax
1738 echo ".text" > conftest.s
1739 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1740 gcc_cv_as_relax_opt=yes
1742 gcc_cv_as_relax_opt=no
1744 rm -f conftest.s conftest.o
1747 if test "x$gcc_cv_as_relax_opt" = xyes; then
1748 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1749 [Define if your assembler supports -relax option.])
1752 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
1753 gcc_cv_as_sparc_ua_pcrel, [
1754 gcc_cv_as_sparc_ua_pcrel=unknown
1755 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
1756 gcc_cv_as_sparc_ua_pcrel=no
1757 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
1758 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1759 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
1760 gcc_cv_as_sparc_ua_pcrel=yes
1762 rm -f conftest.s conftest.o conftest
1765 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1766 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
1767 [Define if your assembler and linker support unaligned PC relative relocs.])
1770 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
1771 gcc_cv_as_sparc_ua_pcrel_hidden, [
1772 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1773 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
1774 if test x$gcc_cv_objdump != x; then
1775 gcc_cv_as_sparc_ua_pcrel_hidden=no
1776 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
1777 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
1778 echo "foo: .skip 4" >> conftest.s
1779 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1780 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
1781 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
1782 | grep ' 31000000 07323334' > /dev/null 2>&1; then
1783 if $gcc_cv_objdump -R conftest 2> /dev/null \
1784 | grep 'DISP32' > /dev/null 2>&1; then
1787 gcc_cv_as_sparc_ua_pcrel_hidden=yes
1791 rm -f conftest.s conftest.o conftest
1793 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
1796 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
1797 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
1798 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
1803 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1804 gcc_cv_as_flags64, [
1805 if test -n "$gcc_cv_as"; then
1806 echo ".xword foo" > conftest.s
1807 gcc_cv_as_flags64=no
1808 for flag in "-xarch=v9" "-64 -Av9"; do
1809 if $gcc_cv_as $flag -o conftest.o conftest.s \
1810 > /dev/null 2>&1; then
1811 gcc_cv_as_flags64=$flag
1815 rm -f conftest.s conftest.o
1817 if test "$gas" = yes; then
1818 gcc_cv_as_flags64="-64 -Av9"
1820 gcc_cv_as_flags64="-xarch=v9"
1824 if test "x$gcc_cv_as_flags64" = xno; then
1826 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1827 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1830 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1831 [Define if the assembler supports 64bit sparc.])
1834 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1838 if test "x$gcc_cv_as_flags64" != xno; then
1839 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1840 gcc_cv_as_offsetable_lo10, [
1841 gcc_cv_as_offsetable_lo10=unknown
1842 if test "x$gcc_cv_as" != x; then
1843 # Check if assembler has offsetable %lo()
1844 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1845 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1846 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1848 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1849 > /dev/null 2>&1; then
1850 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1851 gcc_cv_as_offsetable_lo10=no
1853 gcc_cv_as_offsetable_lo10=yes
1856 gcc_cv_as_offsetable_lo10=no
1858 rm -f conftest.s conftest.o conftest1.s conftest1.o
1861 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1862 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1863 [Define if your assembler supports offsetable %lo().])
1870 i[34567]86-*-* | x86_64-*-*)
1872 AC_MSG_CHECKING(assembler instructions)
1873 gcc_cv_as_instructions=
1874 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1875 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1876 gcc_cv_as_instructions="filds fists"
1878 elif test x$gcc_cv_as != x; then
1879 set "filds fists" "filds mem; fists mem"
1882 echo "$2" > conftest.s
1883 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1884 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1888 rm -f conftest.s conftest.o
1890 if test x"$gcc_cv_as_instructions" != x; then
1891 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1893 AC_MSG_RESULT($gcc_cv_as_instructions)
1895 AC_MSG_CHECKING(assembler GOTOFF in data directives)
1896 gcc_cv_as_gotoff_in_data=no
1897 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1899 if test "$gcc_cv_gas_major_version" -eq 2 \
1900 -a "$gcc_cv_gas_minor_version" -ge 11 \
1901 -o "$gcc_cv_gas_major_version" -gt 2; then
1902 gcc_cv_as_gotoff_in_data=yes
1904 elif test x$gcc_cv_as != x; then
1905 cat > conftest.s <<EOF
1912 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1913 gcc_cv_as_gotoff_in_data=yes
1916 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
1917 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
1918 [Define true if the assembler supports '.long foo@GOTOFF'.])
1919 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
1923 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1924 gcc_cv_as_dwarf2_debug_line=no
1925 # ??? Not all targets support dwarf2 debug_line, even within a version
1926 # of gas. Moreover, we need to emit a valid instruction to trigger any
1927 # info to the output file. So, as supported targets are added to gas 2.11,
1928 # add some instruction here to (also) show we expect this might work.
1929 # ??? Once 2.11 is released, probably need to add first known working
1930 # version to the per-target configury.
1932 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-*)
1939 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1941 if test "$gcc_cv_gas_major_version" -eq 2 \
1942 -a "$gcc_cv_gas_minor_version" -ge 11 \
1943 -o "$gcc_cv_gas_major_version" -gt 2 \
1944 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1945 && test x"$insn" != x ; then
1946 gcc_cv_as_dwarf2_debug_line="yes"
1948 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1949 echo ' .file 1 "conftest.s"' > conftest.s
1950 echo ' .loc 1 3 0' >> conftest.s
1951 echo " $insn" >> conftest.s
1952 # ??? This fails with non-gnu grep.
1953 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1954 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1955 # The .debug_line file table must be in the exact order that
1956 # we specified the files, since these indices are also used
1957 # by DW_AT_decl_file. Approximate this test by testing if
1958 # the assembler bitches if the same index is assigned twice.
1959 echo ' .file 1 "foo.s"' > conftest.s
1960 echo ' .file 1 "bar.s"' >> conftest.s
1961 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
1963 gcc_cv_as_dwarf2_debug_line="no"
1965 gcc_cv_as_dwarf2_debug_line="yes"
1968 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1970 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1971 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1972 [Define if your assembler supports dwarf2 .file/.loc directives,
1973 and preserves file table indices exactly as given.])
1975 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1977 AC_MSG_CHECKING(assembler --gdwarf2 support)
1978 gcc_cv_as_gdwarf2_flag=no
1979 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1981 if test "$gcc_cv_gas_major_version" -eq 2 \
1982 -a "$gcc_cv_gas_minor_version" -ge 11 \
1983 -o "$gcc_cv_gas_major_version" -gt 2 \
1984 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1985 && test x"$insn" != x ; then
1986 gcc_cv_as_gdwarf2_debug_flag="yes"
1988 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1989 echo '' > conftest.s
1990 # ??? This fails with non-gnu grep.
1991 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
1993 gcc_cv_as_gdwarf2_flag="yes"
1995 rm -f conftest.s conftest.o
1997 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
1998 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
1999 [Define if your assembler supports the --gdwarf2 option.])
2001 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2003 AC_MSG_CHECKING(assembler --gstabs support)
2004 gcc_cv_as_gstabs_flag=no
2005 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2007 if test "$gcc_cv_gas_major_version" -eq 2 \
2008 -a "$gcc_cv_gas_minor_version" -ge 11 \
2009 -o "$gcc_cv_gas_major_version" -gt 2 \
2010 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2011 && test x"$insn" != x ; then
2012 gcc_cv_as_gstabs_debug_flag="yes"
2014 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2015 echo '' > conftest.s
2016 # ??? This fails with non-gnu grep.
2017 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2018 gcc_cv_as_gstabs_flag="yes"
2020 rm -f conftest.s conftest.o
2022 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2023 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2024 [Define if your assembler supports the --gstabs option.])
2026 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2028 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2029 gcc_cv_ld_eh_frame_hdr=no
2030 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2031 if test "$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
2032 gcc_cv_ld_eh_frame_hdr=yes
2034 elif test x$gcc_cv_ld != x; then
2035 # Check if linker supports --eh-frame-hdr option
2036 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2037 gcc_cv_ld_eh_frame_hdr=yes
2040 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2041 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2042 [Define if your linker supports --eh-frame-hdr option.])
2044 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2046 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
2047 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2050 # Figure out what language subdirectories are present.
2051 # Look if the user specified --enable-languages="..."; if not, use
2052 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2054 # NB: embedded tabs in this IF block -- do not untabify
2055 if test x"${enable_languages+set}" != xset; then
2056 if test x"${LANGUAGES+set}" = xset; then
2057 enable_languages="${LANGUAGES}"
2058 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2061 enable_languages=all
2064 if test x"${enable_languages}" = x ||
2065 test x"${enable_languages}" = xyes;
2067 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2070 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2072 # First scan to see if an enabled language requires some other language.
2073 # We assume that a given config-lang.in will list all the language
2074 # front ends it requires, even if some are required indirectly.
2075 for lang in ${srcdir}/*/config-lang.in ..
2080 # The odd quoting in the next line works around
2081 # an apparent bug in bash 1.12 on linux.
2083 ${srcdir}/[*]/config-lang.in)
2086 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2087 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2088 for other in $this_lang_requires
2090 case ,${enable_languages}, in
2096 enable_languages="$enable_languages,$other"
2106 for lang in ${srcdir}/*/config-lang.in ..
2110 # The odd quoting in the next line works around
2111 # an apparent bug in bash 1.12 on linux.
2113 ${srcdir}/[*]/config-lang.in) ;;
2115 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2116 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2117 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2118 if test "x$lang_alias" = x
2120 echo "$lang doesn't set \$language." 1>&2
2123 case ${build_by_default},${enable_languages}, in
2124 *,$lang_alias,*) add_this_lang=yes ;;
2125 no,*) add_this_lang=no ;;
2126 *,all,*) add_this_lang=yes ;;
2127 *) add_this_lang=no ;;
2129 if test x"${add_this_lang}" = xyes; then
2131 ${srcdir}/ada/config-lang.in)
2132 if test x$have_gnat = xyes ; then
2133 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2137 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2146 # Make gthr-default.h if we have a thread file.
2148 if test $thread_file != single; then
2149 rm -f gthr-default.h
2150 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2151 gthread_flags=-DHAVE_GTHR_DEFAULT
2153 AC_SUBST(gthread_flags)
2155 # Find out what GC implementation we want, or may, use.
2157 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2164 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2169 echo "Using $GGC for garbage collection."
2171 # Use the system's zlib library.
2173 zlibinc="-I\$(srcdir)/../zlib"
2174 AC_ARG_WITH(system-zlib,
2175 [ --with-system-zlib use installed libz],
2182 dnl Very limited version of automake's enable-maintainer-mode
2184 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2185 dnl maintainer-mode is disabled by default
2186 AC_ARG_ENABLE(maintainer-mode,
2187 [ --enable-maintainer-mode
2188 enable make rules and dependencies not useful
2189 (and sometimes confusing) to the casual installer],
2190 maintainer_mode=$enableval,
2193 AC_MSG_RESULT($maintainer_mode)
2195 if test "$maintainer_mode" = "yes"; then
2202 # With Setjmp/Longjmp based exception handling.
2203 AC_ARG_ENABLE(sjlj-exceptions,
2204 [ --enable-sjlj-exceptions
2205 arrange to use setjmp/longjmp exception handling],
2206 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
2207 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
2208 [Define 0/1 to force the choice for exception handling model.])])
2210 # Make empty files to contain the specs and options for each language.
2211 # Then add #include lines to for a compiler that has specs and/or options.
2216 for subdir in . $subdirs
2218 if test -f $srcdir/$subdir/lang-specs.h; then
2219 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2221 if test -f $srcdir/$subdir/lang-options.h; then
2222 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2224 if test -f $srcdir/$subdir/$subdir-tree.def; then
2225 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2229 # These (without "all_") are set in each config-lang.in.
2230 # `language' must be a single word so is spelled singularly.
2235 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc'
2236 # List of language makefile fragments.
2239 # Add the language fragments.
2240 # Languages are added via two mechanisms. Some information must be
2241 # recorded in makefile variables, these are defined in config-lang.in.
2242 # We accumulate them and plug them into the main Makefile.
2243 # The other mechanism is a set of hooks for each of the main targets
2244 # like `clean', `install', etc.
2246 language_fragments="Make-lang"
2247 language_hooks="Make-hooks"
2249 for s in .. $subdirs
2258 . ${srcdir}/$s/config-lang.in
2259 if test "x$language" = x
2261 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2264 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2265 if test -f ${srcdir}/$s/Makefile.in
2266 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2268 all_languages="$all_languages $language"
2269 if test "x$boot_language" = xyes
2271 all_boot_languages="$all_boot_languages $language"
2273 all_compilers="$all_compilers $compilers"
2274 all_stagestuff="$all_stagestuff $stagestuff"
2275 all_outputs="$all_outputs $outputs"
2280 for language in .. $all_languages
2282 if test $language != ".."
2284 check_languages="$check_languages check-$language"
2288 # Since we can't use `::' targets, we link each language in
2289 # with a set of hooks, reached indirectly via lang.${target}.
2293 target_list="all.build all.cross start.encap rest.encap \
2294 info dvi generated-manpages \
2295 install-normal install-common install-info install-man \
2297 mostlyclean clean distclean extraclean maintainer-clean \
2298 stage1 stage2 stage3 stage4"
2299 for t in $target_list
2302 for lang in .. $all_languages
2304 if test $lang != ".."; then
2308 echo "lang.$t: $x" >> Make-hooks
2313 echo "dir ." > .gdbinit
2314 echo "dir ${srcdir}" >> .gdbinit
2315 if test x$gdb_needs_out_file_path = xyes
2317 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2319 if test "x$subdirs" != x; then
2322 echo "dir ${srcdir}/$s" >> .gdbinit
2325 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2327 # Define variables host_canonical and build_canonical
2328 # because some Cygnus local changes in the Makefile depend on them.
2329 build_canonical=${build}
2330 host_canonical=${host}
2332 if test "${host}" != "${target}" ; then
2333 target_subdir=${target_alias}/
2335 AC_SUBST(build_canonical)
2336 AC_SUBST(host_canonical)
2337 AC_SUBST(target_subdir)
2339 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2340 # absolute path for gcc_tooldir based on inserting the number of up-directory
2341 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2342 # $(libsubdir)/@(unlibsubdir) based path.
2343 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2344 # make and thus we'd get different behavior depending on where we built the
2346 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2347 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2349 changequote(<<, >>)dnl
2350 # An explanation of the sed strings:
2351 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2352 # -e 's|/$||' match a trailing forward slash and eliminates it
2353 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2354 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2356 # (*) Note this pattern overwrites the first character of the string
2357 # with a forward slash if one is not already present. This is not a
2358 # problem because the exact names of the sub-directories concerned is
2359 # unimportant, just the number of them matters.
2361 # The practical upshot of these patterns is like this:
2363 # prefix exec_prefix result
2364 # ------ ----------- ------
2366 # /foo/ /foo/bar ../
2367 # /foo /foo/bar/ ../
2368 # /foo/ /foo/bar/ ../
2369 # /foo /foo/bar/ugg ../../
2372 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2373 changequote([, ])dnl
2375 AC_SUBST(gcc_tooldir)
2378 # Find a directory in which to install a shared libgcc.
2380 AC_ARG_ENABLE(version-specific-runtime-libs,
2381 [ --enable-version-specific-runtime-libs
2382 specify that runtime libraries should be
2383 installed in a compiler-specific directory])
2385 AC_ARG_WITH(slibdir,
2386 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2387 slibdir="$with_slibdir",
2388 if test "${enable_version_specific_runtime_libs+set}" = set; then
2389 slibdir='$(libsubdir)'
2390 elif test "$host" != "$target"; then
2391 slibdir='$(build_tooldir)/lib'
2397 # Nothing to do for FLOAT_H, float_format already handled.
2401 # Process the language and host/target makefile fragments.
2402 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2404 # Substitute configuration variables
2406 AC_SUBST(all_boot_languages)
2407 AC_SUBST(all_compilers)
2408 AC_SUBST(all_lang_makefiles)
2409 AC_SUBST(all_languages)
2410 AC_SUBST(all_stagestuff)
2411 AC_SUBST(build_exeext)
2412 AC_SUBST(build_install_headers_dir)
2413 AC_SUBST(build_xm_file_list)
2414 AC_SUBST(build_xm_file)
2415 AC_SUBST(build_xm_defines)
2416 AC_SUBST(check_languages)
2417 AC_SUBST(cc_set_by_configure)
2418 AC_SUBST(quoted_cc_set_by_configure)
2419 AC_SUBST(cpp_install_dir)
2420 AC_SUBST(dep_host_xmake_file)
2421 AC_SUBST(dep_tmake_file)
2422 AC_SUBST(extra_headers_list)
2423 AC_SUBST(extra_objs)
2424 AC_SUBST(extra_parts)
2425 AC_SUBST(extra_passes)
2426 AC_SUBST(extra_programs)
2427 AC_SUBST(float_h_file)
2428 AC_SUBST(gcc_config_arguments)
2429 AC_SUBST(gcc_gxx_include_dir)
2430 AC_SUBST(libstdcxx_incdir)
2431 AC_SUBST(gcc_version)
2432 AC_SUBST(gcc_version_full)
2433 AC_SUBST(gcc_version_trigger)
2434 AC_SUBST(host_exeext)
2435 AC_SUBST(host_extra_gcc_objs)
2436 AC_SUBST(host_xm_file_list)
2437 AC_SUBST(host_xm_file)
2438 AC_SUBST(host_xm_defines)
2440 AC_SUBST(lang_options_files)
2441 AC_SUBST(lang_specs_files)
2442 AC_SUBST(lang_tree_files)
2443 AC_SUBST(local_prefix)
2445 AC_SUBST(objc_boehm_gc)
2447 AC_SUBST(out_object_file)
2448 AC_SUBST(stage_prefix_set_by_configure)
2449 AC_SUBST(quoted_stage_prefix_set_by_configure)
2450 AC_SUBST(symbolic_link)
2451 AC_SUBST(thread_file)
2452 AC_SUBST(tm_file_list)
2454 AC_SUBST(tm_p_file_list)
2457 AC_SUBST(xm_defines)
2458 AC_SUBST(target_alias)
2459 AC_SUBST(c_target_objs)
2460 AC_SUBST(cxx_target_objs)
2461 AC_SUBST(target_cpu_default)
2463 AC_SUBST_FILE(target_overrides)
2464 AC_SUBST_FILE(host_overrides)
2465 AC_SUBST_FILE(language_fragments)
2466 AC_SUBST_FILE(language_hooks)
2468 # Echo that links are built
2469 if test x$host = x$target
2477 if test x$host != x$build
2479 str3=" on a $build system"
2482 if test "x$str2" != x || test "x$str3" != x
2487 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2489 if test "x$str2" != x || test "x$str3" != x
2491 echo " ${str2}${str3}." 1>&2
2494 # Truncate the target if necessary
2495 if test x$host_truncate_target != x; then
2496 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2499 # Configure the subdirectories
2500 # AC_CONFIG_SUBDIRS($subdirs)
2502 # Create the Makefile
2503 # and configure language subdirectories
2504 AC_OUTPUT($all_outputs,
2506 case x$CONFIG_HEADERS in
2507 xauto-host.h:config.in)
2510 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2511 # bootstrapping and the installation procedure can still use
2512 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2513 # FLAGS_TO_PASS has been modified to solve the problem there.
2514 # This is virtually a duplicate of what happens in configure.lang; we do
2515 # an extra check to make sure this only happens if ln -s can be used.
2516 if test "$symbolic_link" = "ln -s"; then
2517 for d in .. ${subdirs} fixinc ; do
2518 if test $d != ..; then
2521 for t in stage1 stage2 stage3 stage4 include
2524 $symbolic_link ../$t $t 2>/dev/null
2530 # Avoid having to add intl to our include paths.
2531 if test -f intl/libintl.h; then
2532 echo creating libintl.h
2533 echo '#include "intl/libintl.h"' >libintl.h
2537 symbolic_link='$symbolic_link'