2 # Process this file with autoconf to generate a configuration script.
4 # Copyright (C) 1997, 1998, 1999, 2000, 2001 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 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
354 ac_cv_prog_cc_no_long_long,
355 [save_CFLAGS="$CFLAGS"
356 CFLAGS="-Wno-long-long"
357 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
358 ac_cv_prog_cc_no_long_long=no)
359 CFLAGS="$save_CFLAGS"])
361 if test $ac_cv_prog_cc_no_long_long = yes; then
362 strict1_warn="-pedantic -Wno-long-long"
364 AC_SUBST(strict1_warn)
374 # sizeof(char) is 1 by definition.
375 gcc_AC_COMPILE_CHECK_SIZEOF(short)
376 gcc_AC_COMPILE_CHECK_SIZEOF(int)
377 gcc_AC_COMPILE_CHECK_SIZEOF(long)
378 if test $ac_cv_c_long_long = yes; then
379 gcc_AC_COMPILE_CHECK_SIZEOF(long long)
381 if test $ac_cv_c___int64 = yes; then
382 gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
387 # If the native compiler is GCC, we can enable warnings even in stage1.
388 # That's useful for people building cross-compilers, or just running a
391 if test "x$GCC" = "xyes"; then
392 warn_cflags='$(GCC_WARN_CFLAGS)'
394 AC_SUBST(warn_cflags)
396 # Stage specific cflags for build.
402 stage1_cflags="-Wa,-J"
408 AC_SUBST(stage1_cflags)
412 AC_MSG_CHECKING([whether a default assembler was specified])
413 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
414 if test x"$gas_flag" = x"no"; then
415 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
417 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
423 AC_MSG_CHECKING([whether a default linker was specified])
424 if test x"${DEFAULT_LINKER+set}" = x"set"; then
425 if test x"$gnu_ld_flag" = x"no"; then
426 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
428 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
434 AC_MSG_CHECKING(for GNU C library)
435 AC_CACHE_VAL(gcc_cv_glibc,
437 [#include <features.h>],[
438 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
439 #error Not a GNU C library system
443 AC_MSG_RESULT($gcc_cv_glibc)
444 if test $gcc_cv_glibc = yes; then
445 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
448 # Find some useful tools
457 gcc_AC_HEADER_STDBOOL
460 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
461 fcntl.h unistd.h sys/file.h sys/time.h \
462 sys/resource.h sys/param.h sys/times.h sys/stat.h \
463 direct.h malloc.h langinfo.h)
465 # Check for thread headers.
466 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
467 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
469 # These tests can't be done till we know if we have limits.h.
471 gcc_AC_C_COMPILE_ENDIAN
472 gcc_AC_C_FLOAT_FORMAT
474 # See if GNAT has been installed
477 # See if we have the mktemp command.
478 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
480 # Do we have a single-tree copy of texinfo?
481 if test -f $srcdir/../texinfo/Makefile.in; then
482 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
483 gcc_cv_prog_makeinfo_modern=yes
484 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
486 # See if makeinfo has been installed and is modern enough
487 # that we can use it.
488 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
489 [GNU texinfo.* \([0-9][0-9.]*\)],
493 if test $gcc_cv_prog_makeinfo_modern = no; then
495 *** Makeinfo is missing or too old.
496 *** Info documentation will not be built.])
499 BUILD_INFO=info AC_SUBST(BUILD_INFO)
502 # Is pod2man recent enough to regenerate manpages?
503 AC_MSG_CHECKING([for recent Pod::Man])
504 if perl -e 'use 1.10 Pod::Man' >/dev/null 2>&1; then
506 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
513 dnl Don't use AC_PROG_LEX; we insist on flex.
514 dnl LEXLIB is not useful in gcc.
515 if test -f $srcdir/../flex/skel.c; then
516 FLEX='$(objdir)/../flex/flex'
518 AC_CHECK_PROG(FLEX, flex, flex, false)
522 # The -L switch is so bison can find its skeleton file.
523 if test -f $srcdir/../bison/bison.simple; then
524 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
526 AC_CHECK_PROG(BISON, bison, bison, false)
529 # These libraries may be used by collect2.
530 # We may need a special search path to get them linked.
531 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
533 for libs in '' -lld -lmld \
534 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
535 '-L/usr/lib/cmplrs/cc3.11 -lmld'
538 AC_TRY_LINK_FUNC(ldopen,
539 [gcc_cv_collect2_libs="$libs"; break])
542 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
543 case $gcc_cv_collect2_libs in
545 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
547 AC_SUBST(COLLECT2_LIBS)
549 # When building Ada code on Alpha, we need exc_resume which is usually in
550 # -lexc. So test for it.
553 AC_SEARCH_LIBS(exc_resume, exc)
556 AC_SUBST(GNAT_LIBEXC)
558 # See if the stage1 system preprocessor understands the ANSI C
559 # preprocessor stringification operator. (Used by symcat.h.)
562 # Use <inttypes.h> only if it exists,
563 # doesn't clash with <sys/types.h>, and declares intmax_t.
564 AC_MSG_CHECKING(for inttypes.h)
565 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
567 [#include <sys/types.h>
568 #include <inttypes.h>],
570 [gcc_cv_header_inttypes_h=yes],
571 gcc_cv_header_inttypes_h=no)])
572 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
573 if test $gcc_cv_header_inttypes_h = yes; then
574 AC_DEFINE(HAVE_INTTYPES_H, 1,
575 [Define if you have a working <inttypes.h> header file.])
578 dnl Disabled until we have a complete test for buggy enum bitfields.
579 dnl gcc_AC_C_ENUM_BF_UNSIGNED
581 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
582 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
583 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat)
585 AC_CHECK_TYPE(ssize_t, int)
587 # Try to determine the array type of the second argument of getgroups
588 # for the target system (int or gid_t).
590 if test "${target}" = "${build}"; then
591 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
594 # This condition may need some tweaking. It should include all
595 # targets where the array type of the second argument of getgroups
596 # is int and the type of gid_t is not equivalent to int.
597 *-*-sunos* | *-*-ultrix*)
598 TARGET_GETGROUPS_T=int
601 TARGET_GETGROUPS_T=gid_t
605 AC_SUBST(TARGET_GETGROUPS_T)
607 gcc_AC_FUNC_PRINTF_PTR
612 *** UWIN may not be used as a host platform because
613 *** linking with posix.dll is not allowed by the GNU GPL])
616 # Under VMS, vfork works very different than on Unix. The standard test
617 # won't work, and it isn't easily adaptable. It makes more sense to
619 ac_cv_func_vfork_works=yes
623 AC_FUNC_MMAP_ANYWHERE
628 # We will need to find libiberty.h and ansidecl.h
629 saved_CFLAGS="$CFLAGS"
630 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
631 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
632 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
633 fprintf_unlocked strstr environ errno \
634 malloc realloc calloc free basename getopt clock, , ,[
635 #include "ansidecl.h"
636 #include "system.h"])
638 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
639 #include "ansidecl.h"
641 #ifdef HAVE_SYS_RESOURCE_H
642 #include <sys/resource.h>
646 gcc_AC_CHECK_DECLS(times, , ,[
647 #include "ansidecl.h"
649 #ifdef HAVE_SYS_TIMES_H
650 #include <sys/times.h>
654 # More time-related stuff.
655 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
657 #include "ansidecl.h"
659 #ifdef HAVE_SYS_TIMES_H
660 #include <sys/times.h>
662 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
663 if test $ac_cv_struct_tms = yes; then
664 AC_DEFINE(HAVE_STRUCT_TMS, 1,
665 [Define if <sys/times.h> defines struct tms.])
668 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
669 # revisit after autoconf 2.50.
670 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
672 #include "ansidecl.h"
674 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
675 if test $gcc_cv_type_clock_t = yes; then
676 AC_DEFINE(HAVE_CLOCK_T, 1,
677 [Define if <time.h> defines clock_t.])
680 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
681 CFLAGS="$saved_CFLAGS"
683 # mkdir takes a single argument on some systems.
684 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
694 build_install_headers_dir=install-headers-tar
699 host_truncate_target=
702 # Decode the host machine, then the target machine.
703 # For the host machine, we save the xm_file variable as host_xm_file;
704 # then we decode the target machine and forget everything else
705 # that came from the host machine.
706 for machine in $build $host $target; do
707 . ${srcdir}/config.gcc
710 extra_objs="${host_extra_objs} ${extra_objs}"
712 # Default the target-machine variables that were not explicitly set.
713 if test x"$tm_file" = x
714 then tm_file=$cpu_type/$cpu_type.h; fi
716 if test x"$extra_headers" = x
717 then extra_headers=; fi
719 if test x$md_file = x
720 then md_file=$cpu_type/$cpu_type.md; fi
722 if test x$out_file = x
723 then out_file=$cpu_type/$cpu_type.c; fi
725 if test x"$tmake_file" = x
726 then tmake_file=$cpu_type/t-$cpu_type
729 if test x"$dwarf2" = xyes
730 then tm_file="$tm_file tm-dwarf2.h"
733 if test x$float_format = x
734 then float_format=i64
737 if test $float_format = none
738 then float_h_file=Makefile.in
739 else float_h_file=float-$float_format.h
742 # Handle cpp installation.
743 if test x$enable_cpp != xno
745 tmake_file="$tmake_file t-install-cpp"
748 # Say what files are being used for the output code and MD file.
749 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
750 echo "Using \`$srcdir/config/$md_file' as machine description file."
752 # If any of the xm_file variables contain nonexistent files, warn
753 # about them and drop them.
756 for x in $build_xm_file; do
757 if test -f $srcdir/config/$x
759 else AC_MSG_WARN($srcdir/config/$x does not exist.)
765 for x in $host_xm_file; do
766 if test -f $srcdir/config/$x
768 else AC_MSG_WARN($srcdir/config/$x does not exist.)
774 for x in $xm_file; do
775 if test -f $srcdir/config/$x
777 else AC_MSG_WARN($srcdir/config/$x does not exist.)
783 for f in $tm_file; do
786 if test $count = ax; then
787 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
789 echo "Using the following target machine macro files:"
790 for f in $tm_file; do
791 echo " $srcdir/config/$f"
796 for f in $host_xm_file; do
799 if test $count = a; then
801 elif test $count = ax; then
802 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
804 echo "Using the following host machine macro files:"
805 for f in $host_xm_file; do
806 echo " $srcdir/config/$f"
810 if test "$host_xm_file" != "$build_xm_file"; then
812 for f in $build_xm_file; do
815 if test $count = a; then
817 elif test $count = ax; then
818 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
820 echo "Using the following build machine macro files:"
821 for f in $build_xm_file; do
822 echo " $srcdir/config/$f"
827 if test x$thread_file = x; then
828 if test x$target_thread_file != x; then
829 thread_file=$target_thread_file
835 # auto-host.h is the file containing items generated by autoconf and is
836 # the first file included by config.h.
837 # If host=build, it is correct to have hconfig include auto-host.h
838 # as well. If host!=build, we are in error and need to do more
839 # work to find out the build config parameters.
840 if test x$host = x$build
842 build_auto=auto-host.h
845 # We create a subdir, then run autoconf in the subdir.
846 # To prevent recursion we set host and build for the new
847 # invocation of configure to the build for this invocation
854 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
855 *) realsrcdir=../${srcdir};;
857 saved_CFLAGS="${CFLAGS}"
858 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
859 ${realsrcdir}/configure \
860 --target=$target --host=$build --build=$build
861 CFLAGS="${saved_CFLAGS}"
863 # We just finished tests for the build machine, so rename
864 # the file auto-build.h in the gcc directory.
865 mv auto-host.h ../auto-build.h
868 build_auto=auto-build.h
873 tm_file="${tm_file} defaults.h"
874 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
875 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
876 xm_file="ansidecl.h ${xm_file} ${tm_file}"
878 # Truncate the target if necessary
879 if test x$host_truncate_target != x; then
880 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
883 # Get the version trigger filename from the toplevel
884 if test "${with_gcc_version_trigger+set}" = set; then
885 gcc_version_trigger=$with_gcc_version_trigger
887 gcc_version_trigger=${srcdir}/version.c
890 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
891 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
893 # Compile in configure arguments.
894 if test -f configargs.h ; then
895 # Being re-configured.
896 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
897 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
899 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
901 cat > configargs.h <<EOF
902 /* Generated automatically. */
903 static const char configuration_arguments[] = "$gcc_config_arguments";
904 static const char thread_model[] = "$thread_file";
908 # Internationalization
910 VERSION="$gcc_version"
911 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
912 [Define to the name of the distribution.])
913 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
914 [Define to the version of the distribution.])
918 # Enable NLS support by default
920 [ --enable-nls use Native Language Support (default)],
923 # if cross compiling, disable NLS support.
924 # It's not worth the trouble, at least for now.
926 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
927 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
933 # Windows32 Registry support for specifying GCC installation paths.
934 AC_ARG_ENABLE(win32-registry,
935 [ --disable-win32-registry
936 disable lookup of installation paths in the
937 Registry on Windows hosts
938 --enable-win32-registry enable registry lookup (default)
939 --enable-win32-registry=KEY
940 use KEY instead of GCC version as the last portion
941 of the registry key],,)
943 win32 | pe | cygwin* | mingw32* | uwin*)
944 AC_MSG_CHECKING(whether windows registry support is requested)
945 if test "x$enable_win32_registry" != xno; then
946 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
947 [Define to 1 if installation paths should be looked up in Windows32
948 Registry. Ignored on non windows32 hosts.])
950 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
955 # Check if user specified a different registry key.
956 case "x${enable_win32_registry}" in
959 gcc_cv_win32_registry_key="$VERSION"
962 # no registry lookup.
963 gcc_cv_win32_registry_key=''
966 # user-specified key.
967 gcc_cv_win32_registry_key="$enable_win32_registry"
971 if test "x$enable_win32_registry" != xno; then
972 AC_MSG_CHECKING(registry key on windows hosts)
973 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
974 [Define to be the last portion of registry key on windows hosts.])
975 AC_MSG_RESULT($gcc_cv_win32_registry_key)
980 # Get an absolute path to the GCC top-level source directory
986 # Conditionalize the makefile for this host machine.
987 # Make-host contains the concatenation of all host makefile fragments
988 # [there can be more than one]. This file is built by configure.frag.
989 host_overrides=Make-host
991 for f in .. ${host_xmake_file}
993 if test -f ${srcdir}/config/$f
995 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
999 # Conditionalize the makefile for this target machine.
1000 # Make-target contains the concatenation of all host makefile fragments
1001 # [there can be more than one]. This file is built by configure.frag.
1002 target_overrides=Make-target
1004 for f in .. ${tmake_file}
1006 if test -f ${srcdir}/config/$f
1008 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1012 # If the host doesn't support symlinks, modify CC in
1013 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1014 # Otherwise, we can use "CC=$(CC)".
1016 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1018 cc_set_by_configure="\$(CC)"
1019 quoted_cc_set_by_configure="\$(CC)"
1020 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1023 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1025 symbolic_link="cp -p"
1029 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1030 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1031 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1035 out_object_file=`basename $out_file .c`.o
1038 for f in $tm_file; do
1041 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1043 tm_file_list="${tm_file_list} $f" ;;
1044 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1049 for f in $tm_p_file; do
1050 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1054 for f in $host_xm_file; do
1057 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1058 auto-host.h | defaults.h )
1059 host_xm_file_list="${host_xm_file_list} $f" ;;
1060 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1065 for f in $build_xm_file; do
1068 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1069 auto-build.h | auto-host.h | defaults.h )
1070 build_xm_file_list="${build_xm_file_list} $f" ;;
1071 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1075 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1076 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1077 CROSS= AC_SUBST(CROSS)
1078 ALL=all.internal AC_SUBST(ALL)
1079 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1080 if test x$host != x$target
1082 CROSS="-DCROSS_COMPILE"
1084 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1087 # If this is a cross-compiler that does not
1088 # have its own set of headers then define
1091 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1092 # This prevents libgcc2 from containing any code which requires libc
1095 if [test x$host != x$target] && [test x$with_headers = x]; then
1096 inhibit_libc=-Dinhibit_libc
1098 if [test x$with_newlib = xyes]; then
1099 inhibit_libc=-Dinhibit_libc
1102 AC_SUBST(inhibit_libc)
1104 # When building gcc with a cross-compiler, we need to adjust things so
1105 # that the generator programs are still built with the native compiler.
1106 # Also, we cannot run fixincludes or fix-header.
1107 # Note that the terminology here is wrong; it should be BUILD_* throughout.
1110 # These are the normal (build=host) settings:
1111 HOST_PREFIX= AC_SUBST(HOST_PREFIX)
1112 HOST_PREFIX_1=ignore- AC_SUBST(HOST_PREFIX_1)
1113 HOST_CC='$(CC)' AC_SUBST(HOST_CC)
1114 HOST_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(HOST_CFLAGS)
1116 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1117 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1119 # And these apply if build != host.
1120 if test x$build != x$host
1123 HOST_PREFIX_1=build-
1124 HOST_CC='$(CC_FOR_BUILD)'
1125 HOST_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1131 # Expand extra_headers to include complete path.
1132 # This substitutes for lots of t-* files.
1134 if test "x$extra_headers" = x
1137 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1138 for file in $extra_headers;
1140 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1144 if test x$use_collect2 = xno; then
1148 # Add a definition of USE_COLLECT2 if system wants one.
1149 if test x$use_collect2 != x
1151 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1152 xm_defines="${xm_defines} USE_COLLECT2"
1155 # If we have gas in the build tree, make a link to it.
1156 if test -f ../gas/Makefile; then
1157 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1160 # If we have nm and objdump in the build tree, make a link to them.
1161 if test -f ../binutils/Makefile; then
1162 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1163 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1166 # If we have ld in the build tree, make a link to it.
1167 if test -f ../ld/Makefile; then
1168 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1171 # Figure out what assembler we will be using.
1172 AC_MSG_CHECKING(what assembler to use)
1174 gcc_cv_gas_major_version=
1175 gcc_cv_gas_minor_version=
1176 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1177 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1178 if test -x "$DEFAULT_ASSEMBLER"; then
1179 gcc_cv_as="$DEFAULT_ASSEMBLER"
1180 elif test -x "$AS"; then
1182 elif test -x as$host_exeext; then
1183 # Build using assembler in the current directory.
1184 gcc_cv_as=./as$host_exeext
1185 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1186 # Single tree build which includes gas.
1187 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
1190 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1192 if test x$gcc_cv_gas_version != x; then
1197 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1198 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1202 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1204 # Search the same directories that the installed compiler will
1205 # search. Else we may find the wrong assembler and lose. If we
1206 # do not find a suitable assembler binary, then try the user's
1209 # Also note we have to check MD_EXEC_PREFIX before checking the
1210 # user's path. Unfortunately, there is no good way to get at the
1211 # value of MD_EXEC_PREFIX here. So we do a brute force search
1212 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1213 # to be fixed as part of the make/configure rewrite too.
1215 if test "x$exec_prefix" = xNONE; then
1216 if test "x$prefix" = xNONE; then
1217 test_prefix=/usr/local
1222 test_prefix=$exec_prefix
1225 # If the loop below does not find an assembler, then use whatever
1226 # one we can find in the users's path.
1228 gcc_cv_as=as$host_exeext
1230 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1231 $test_prefix/lib/gcc-lib/$target \
1232 /usr/lib/gcc/$target/$gcc_version \
1233 /usr/lib/gcc/$target \
1234 $test_prefix/$target/bin/$target/$gcc_version \
1235 $test_prefix/$target/bin \
1240 /bsd43/usr/lib/cmplrs/cc \
1241 /usr/cross64/usr/bin \
1242 /usr/lib/cmplrs/cc \
1243 /sysv/usr/lib/cmplrs/cc \
1244 /svr4/usr/lib/cmplrs/cc \
1247 for dir in $test_dirs; do
1248 if test -f $dir/as$host_exeext; then
1249 gcc_cv_as=$dir/as$host_exeext
1254 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1255 AC_MSG_RESULT("newly built gas")
1257 AC_MSG_RESULT($gcc_cv_as)
1260 # Figure out what linker we will be using.
1261 AC_MSG_CHECKING(what linker to use)
1263 gcc_cv_gld_major_version=
1264 gcc_cv_gld_minor_version=
1265 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1266 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1267 if test -x "$DEFAULT_LINKER"; then
1268 gcc_cv_ld="$DEFAULT_LINKER"
1269 elif test -x "$LD"; then
1271 elif test -x ld$host_exeext; then
1272 # Build using linker in the current directory.
1273 gcc_cv_ld=./ld$host_exeext
1274 elif test -f $gcc_cv_ld_gld_srcdir/configure.in -a -f ../ld/Makefile; then
1275 # Single tree build which includes ld.
1276 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
1279 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1281 if test x$gcc_cv_gld_version != x; then
1286 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1287 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1291 if test "x$gcc_cv_ld" = x -a x$host = x$target; then
1293 # Search the same directories that the installed compiler will
1294 # search. Else we may find the wrong linker and lose. If we
1295 # do not find a suitable linker binary, then try the user's
1298 # Also note we have to check MD_EXEC_PREFIX before checking the
1299 # user's path. Unfortunately, there is no good way to get at the
1300 # value of MD_EXEC_PREFIX here. So we do a brute force search
1301 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1302 # to be fixed as part of the make/configure rewrite too.
1304 if test "x$exec_prefix" = xNONE; then
1305 if test "x$prefix" = xNONE; then
1306 test_prefix=/usr/local
1311 test_prefix=$exec_prefix
1314 # If the loop below does not find an linker, then use whatever
1315 # one we can find in the users's path.
1317 gcc_cv_ld=ld$host_exeext
1319 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1320 $test_prefix/lib/gcc-lib/$target \
1321 /usr/lib/gcc/$target/$gcc_version \
1322 /usr/lib/gcc/$target \
1323 $test_prefix/$target/bin/$target/$gcc_version \
1324 $test_prefix/$target/bin \
1329 /bsd43/usr/lib/cmplrs/cc \
1330 /usr/cross64/usr/bin \
1331 /usr/lib/cmplrs/cc \
1332 /sysv/usr/lib/cmplrs/cc \
1333 /svr4/usr/lib/cmplrs/cc \
1336 for dir in $test_dirs; do
1337 if test -f $dir/ld$host_exeext; then
1338 gcc_cv_ld=$dir/ld$host_exeext
1343 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
1344 AC_MSG_RESULT("newly built ld")
1346 AC_MSG_RESULT($gcc_cv_ld)
1349 # Figure out what nm we will be using.
1350 AC_MSG_CHECKING(what nm to use)
1351 if test -x nm$host_exeext; then
1352 gcc_cv_nm=./nm$host_exeext
1353 elif test x$host = x$target; then
1355 gcc_cv_nm=nm$host_exeext
1357 AC_MSG_RESULT($gcc_cv_nm)
1359 # Figure out what objdump we will be using.
1360 AC_MSG_CHECKING(what objdump to use)
1361 if test -x objdump$host_exeext; then
1362 gcc_cv_objdump=./objdump$host_exeext
1363 elif test x$host = x$target; then
1365 gcc_cv_objdump=objdump$host_exeext
1367 AC_MSG_RESULT($gcc_cv_objdump)
1369 # Figure out what assembler alignment features are present.
1370 AC_MSG_CHECKING(assembler alignment features)
1371 gcc_cv_as_alignment_features=none
1372 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1373 # Gas version 2.6 and later support for .balign and .p2align.
1374 # bytes to skip when using .p2align.
1375 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1376 gcc_cv_as_alignment_features=".balign and .p2align"
1377 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1379 # Gas version 2.8 and later support specifying the maximum
1380 # bytes to skip when using .p2align.
1381 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1382 gcc_cv_as_alignment_features=".p2align including maximum skip"
1383 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1385 elif test x$gcc_cv_as != x; then
1386 # Check if we have .balign and .p2align
1387 echo ".balign 4" > conftest.s
1388 echo ".p2align 2" >> conftest.s
1389 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1390 gcc_cv_as_alignment_features=".balign and .p2align"
1391 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1393 rm -f conftest.s conftest.o
1394 # Check if specifying the maximum bytes to skip when
1395 # using .p2align is supported.
1396 echo ".p2align 4,,7" > conftest.s
1397 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1398 gcc_cv_as_alignment_features=".p2align including maximum skip"
1399 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1401 rm -f conftest.s conftest.o
1403 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1405 AC_MSG_CHECKING(assembler subsection support)
1406 gcc_cv_as_subsections=no
1407 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1408 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1409 gcc_cv_as_subsections="working .subsection -1"
1411 elif test x$gcc_cv_as != x; then
1412 # Check if we have .subsection
1413 echo ".subsection 1" > conftest.s
1414 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1415 gcc_cv_as_subsections=".subsection"
1416 if test x$gcc_cv_nm != x; then
1417 cat > conftest.s <<EOF
1418 conftest_label1: .word 0
1420 conftest_label2: .word 0
1423 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1424 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1425 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1426 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1429 gcc_cv_as_subsections="working .subsection -1"
1434 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1436 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1437 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1438 [Define if your assembler supports .subsection and .subsection -1 starts
1439 emitting at the beginning of your section.])
1441 AC_MSG_RESULT($gcc_cv_as_subsections)
1443 AC_MSG_CHECKING(assembler weak support)
1445 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1446 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1447 gcc_cv_as_weak="yes"
1449 elif test x$gcc_cv_as != x; then
1450 # Check if we have .weak
1451 echo " .weak foobar" > conftest.s
1452 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1453 gcc_cv_as_weak="yes"
1455 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1457 if test x"$gcc_cv_as_weak" = xyes; then
1458 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1460 AC_MSG_RESULT($gcc_cv_as_weak)
1462 AC_MSG_CHECKING(assembler hidden support)
1464 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1465 if test "$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
1466 gcc_cv_as_hidden="yes"
1468 elif test x$gcc_cv_as != x; then
1469 # Check if we have .hidden
1470 echo " .hidden foobar" > conftest.s
1471 echo "foobar:" >> conftest.s
1472 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1473 gcc_cv_as_hidden="yes"
1475 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1477 if test x"$gcc_cv_as_hidden" = xyes; then
1478 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1479 [Define if your assembler supports .hidden.])
1481 AC_MSG_RESULT($gcc_cv_as_hidden)
1483 AC_MSG_CHECKING(assembler leb128 support)
1485 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1486 if test "$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
1487 gcc_cv_as_leb128="yes"
1489 elif test x$gcc_cv_as != x; then
1490 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1491 cat > conftest.s <<EOF
1499 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1500 gcc_cv_as_leb128="yes"
1502 # GAS versions before 2.11 do not support uleb128,
1503 # despite appearing to.
1504 # ??? There exists an elf-specific test that will crash
1505 # the assembler. Perhaps it's better to figure out whether
1506 # arbitrary sections are supported and try the test.
1507 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1508 if echo "$as_ver" | grep GNU > /dev/null; then
1510 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1511 as_major=`echo $as_ver | sed 's/\..*//'`
1512 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1514 if test $as_major -eq 2 -a $as_minor -lt 11; then
1515 gcc_cv_as_leb128="no"
1519 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1521 if test x"$gcc_cv_as_leb128" = xyes; then
1522 AC_DEFINE(HAVE_AS_LEB128, 1,
1523 [Define if your assembler supports .uleb128.])
1525 AC_MSG_RESULT($gcc_cv_as_leb128)
1527 AC_MSG_CHECKING(assembler eh_frame optimization)
1528 gcc_cv_as_eh_frame=no
1529 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1530 if test "$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
1531 gcc_cv_as_eh_frame="yes"
1533 elif test x$gcc_cv_as != x; then
1534 # Check if this is GAS.
1535 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1536 rm -f a.out 2> /dev/null
1537 if echo "$as_ver" | grep GNU > /dev/null; then
1538 # Versions up to and including 2.11.0 may mis-optimize
1539 # .eh_frame data. Try something.
1540 cat > conftest.s <<EOF
1547 .section .eh_frame,"aw",@progbits
1549 .4byte .LECIE1-.LSCIE1
1563 .4byte .LEFDE1-.LASFDE1
1565 .4byte .LASFDE1-__FRAME_BEGIN__
1574 cat > conftest.lit <<EOF
1575 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1576 0010 01000000 12000000 18000000 00000000 ................
1577 0020 08000000 04080000 0044 .........D
1579 cat > conftest.big <<EOF
1580 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1581 0010 00000001 00000012 00000018 00000000 ................
1582 0020 00000008 04000000 0844 .........D
1584 # If the assembler didn't choke, and we can objdump,
1585 # and we got the correct data, then succeed.
1586 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1587 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1588 | tail -3 > conftest.got \
1589 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1590 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1592 gcc_cv_as_eh_frame="yes"
1594 gcc_cv_as_eh_frame="bad"
1595 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1596 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1597 [Define if your assembler mis-optimizes .eh_frame data.])
1603 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1605 AC_MSG_CHECKING(assembler section merging support)
1606 gcc_cv_as_shf_merge=no
1607 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1608 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1609 gcc_cv_as_shf_merge=yes
1611 elif test x$gcc_cv_as != x; then
1612 # Check if we support SHF_MERGE sections
1613 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1614 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1615 gcc_cv_as_shf_merge=yes
1617 rm -f conftest.s conftest.o
1619 if test x"$gcc_cv_as_shf_merge" = xyes; then
1620 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1621 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1623 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1627 AC_CACHE_CHECK([assembler .register pseudo-op support],
1628 gcc_cv_as_register_pseudo_op, [
1629 gcc_cv_as_register_pseudo_op=unknown
1630 if test x$gcc_cv_as != x; then
1631 # Check if we have .register
1632 echo ".register %g2, #scratch" > conftest.s
1633 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1634 gcc_cv_as_register_pseudo_op=yes
1636 gcc_cv_as_register_pseudo_op=no
1638 rm -f conftest.s conftest.o
1641 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1642 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1643 [Define if your assembler supports .register.])
1646 AC_CACHE_CHECK([assembler supports -relax],
1647 gcc_cv_as_relax_opt, [
1648 gcc_cv_as_relax_opt=unknown
1649 if test x$gcc_cv_as != x; then
1650 # Check if gas supports -relax
1651 echo ".text" > conftest.s
1652 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1653 gcc_cv_as_relax_opt=yes
1655 gcc_cv_as_relax_opt=no
1657 rm -f conftest.s conftest.o
1660 if test "x$gcc_cv_as_relax_opt" = xyes; then
1661 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1662 [Define if your assembler supports -relax option.])
1667 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1668 gcc_cv_as_flags64, [
1669 if test -n "$gcc_cv_as"; then
1670 echo ".xword foo" > conftest.s
1671 gcc_cv_as_flags64=no
1672 for flag in "-xarch=v9" "-64 -Av9"; do
1673 if $gcc_cv_as $flag -o conftest.o conftest.s \
1674 > /dev/null 2>&1; then
1675 gcc_cv_as_flags64=$flag
1679 rm -f conftest.s conftest.o
1681 if test "$gas" = yes; then
1682 gcc_cv_as_flags64="-64 -Av9"
1684 gcc_cv_as_flags64="-xarch=v9"
1688 if test "x$gcc_cv_as_flags64" = xno; then
1690 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1691 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1694 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1695 [Define if the assembler supports 64bit sparc.])
1698 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1702 if test "x$gcc_cv_as_flags64" != xno; then
1703 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1704 gcc_cv_as_offsetable_lo10, [
1705 gcc_cv_as_offsetable_lo10=unknown
1706 if test "x$gcc_cv_as" != x; then
1707 # Check if assembler has offsetable %lo()
1708 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1709 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1710 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1712 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1713 > /dev/null 2>&1; then
1714 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1715 gcc_cv_as_offsetable_lo10=no
1717 gcc_cv_as_offsetable_lo10=yes
1720 gcc_cv_as_offsetable_lo10=no
1722 rm -f conftest.s conftest.o conftest1.s conftest1.o
1725 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1726 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1727 [Define if your assembler supports offsetable %lo().])
1734 i[34567]86-*-* | x86_64-*-*)
1736 AC_MSG_CHECKING(assembler instructions)
1737 gcc_cv_as_instructions=
1738 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1739 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1740 gcc_cv_as_instructions="filds fists"
1742 elif test x$gcc_cv_as != x; then
1743 set "filds fists" "filds mem; fists mem"
1746 echo "$2" > conftest.s
1747 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1748 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1752 rm -f conftest.s conftest.o
1754 if test x"$gcc_cv_as_instructions" != x; then
1755 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1757 AC_MSG_RESULT($gcc_cv_as_instructions)
1759 AC_MSG_CHECKING(assembler GOTOFF in data directives)
1760 gcc_cv_as_gotoff_in_data=no
1761 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1763 if test "$gcc_cv_gas_major_version" -eq 2 \
1764 -a "$gcc_cv_gas_minor_version" -ge 11 \
1765 -o "$gcc_cv_gas_major_version" -gt 2; then
1766 gcc_cv_as_gotoff_in_data=yes
1768 elif test x$gcc_cv_as != x; then
1769 cat > conftest.s <<EOF
1776 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1777 gcc_cv_as_gotoff_in_data=yes
1780 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
1781 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
1782 [Define true if the assembler supports '.long foo@GOTOFF'.])
1783 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
1787 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1788 gcc_cv_as_dwarf2_debug_line=no
1789 # ??? Not all targets support dwarf2 debug_line, even within a version
1790 # of gas. Moreover, we need to emit a valid instruction to trigger any
1791 # info to the output file. So, as supported targets are added to gas 2.11,
1792 # add some instruction here to (also) show we expect this might work.
1793 # ??? Once 2.11 is released, probably need to add first known working
1794 # version to the per-target configury.
1796 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-*)
1803 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1805 if test "$gcc_cv_gas_major_version" -eq 2 \
1806 -a "$gcc_cv_gas_minor_version" -ge 11 \
1807 -o "$gcc_cv_gas_major_version" -gt 2 \
1808 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1809 && test x"$insn" != x ; then
1810 gcc_cv_as_dwarf2_debug_line="yes"
1812 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1813 echo ' .file 1 "conftest.s"' > conftest.s
1814 echo ' .loc 1 3 0' >> conftest.s
1815 echo " $insn" >> conftest.s
1816 # ??? This fails with non-gnu grep.
1817 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1818 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1819 # The .debug_line file table must be in the exact order that
1820 # we specified the files, since these indices are also used
1821 # by DW_AT_decl_file. Approximate this test by testing if
1822 # the assembler bitches if the same index is assigned twice.
1823 echo ' .file 1 "foo.s"' > conftest.s
1824 echo ' .file 1 "bar.s"' >> conftest.s
1825 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
1827 gcc_cv_as_dwarf2_debug_line="no"
1829 gcc_cv_as_dwarf2_debug_line="yes"
1832 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1834 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1835 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1836 [Define if your assembler supports dwarf2 .file/.loc directives,
1837 and preserves file table indices exactly as given.])
1839 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1841 AC_MSG_CHECKING(assembler --gdwarf2 support)
1842 gcc_cv_as_gdwarf2_flag=no
1843 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1845 if test "$gcc_cv_gas_major_version" -eq 2 \
1846 -a "$gcc_cv_gas_minor_version" -ge 11 \
1847 -o "$gcc_cv_gas_major_version" -gt 2 \
1848 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1849 && test x"$insn" != x ; then
1850 gcc_cv_as_gdwarf2_debug_flag="yes"
1852 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1853 echo '' > conftest.s
1854 # ??? This fails with non-gnu grep.
1855 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
1857 gcc_cv_as_gdwarf2_flag="yes"
1859 rm -f conftest.s conftest.o
1861 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
1862 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
1863 [Define if your assembler supports the --gdwarf2 option.])
1865 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
1867 AC_MSG_CHECKING(assembler --gstabs support)
1868 gcc_cv_as_gstabs_flag=no
1869 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1871 if test "$gcc_cv_gas_major_version" -eq 2 \
1872 -a "$gcc_cv_gas_minor_version" -ge 11 \
1873 -o "$gcc_cv_gas_major_version" -gt 2 \
1874 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1875 && test x"$insn" != x ; then
1876 gcc_cv_as_gstabs_debug_flag="yes"
1878 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1879 echo '' > conftest.s
1880 # ??? This fails with non-gnu grep.
1881 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
1882 gcc_cv_as_gstabs_flag="yes"
1884 rm -f conftest.s conftest.o
1886 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
1887 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
1888 [Define if your assembler supports the --gstabs option.])
1890 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
1892 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
1893 gcc_cv_ld_eh_frame_hdr=no
1894 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
1895 if test "$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
1896 gcc_cv_ld_eh_frame_hdr=yes
1898 elif test x$gcc_cv_ld != x; then
1899 # Check if linker supports --eh-frame-hdr option
1900 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
1901 gcc_cv_ld_eh_frame_hdr=yes
1904 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
1905 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
1906 [Define if your linker supports --eh-frame-hdr option.])
1908 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
1910 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
1911 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
1914 # Figure out what language subdirectories are present.
1915 # Look if the user specified --enable-languages="..."; if not, use
1916 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1918 # NB: embedded tabs in this IF block -- do not untabify
1919 if test x"${enable_languages+set}" != xset; then
1920 if test x"${LANGUAGES+set}" = xset; then
1921 enable_languages="${LANGUAGES}"
1922 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
1925 enable_languages=all
1928 if test x"${enable_languages}" = x ||
1929 test x"${enable_languages}" = xyes;
1931 AC_MSG_ERROR([--enable-languages needs at least one language argument])
1934 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1936 # First scan to see if an enabled language requires some other language.
1937 # We assume that a given config-lang.in will list all the language
1938 # front ends it requires, even if some are required indirectly.
1939 for lang in ${srcdir}/*/config-lang.in ..
1944 # The odd quoting in the next line works around
1945 # an apparent bug in bash 1.12 on linux.
1947 ${srcdir}/[*]/config-lang.in)
1950 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1951 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
1952 for other in $this_lang_requires
1954 case ,${enable_languages}, in
1960 enable_languages="$enable_languages,$other"
1970 for lang in ${srcdir}/*/config-lang.in ..
1974 # The odd quoting in the next line works around
1975 # an apparent bug in bash 1.12 on linux.
1977 ${srcdir}/[*]/config-lang.in) ;;
1979 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1980 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
1981 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
1982 if test "x$lang_alias" = x
1984 echo "$lang doesn't set \$language." 1>&2
1987 case ${build_by_default},${enable_languages}, in
1988 *,$lang_alias,*) add_this_lang=yes ;;
1989 no,*) add_this_lang=no ;;
1990 *,all,*) add_this_lang=yes ;;
1991 *) add_this_lang=no ;;
1993 if test x"${add_this_lang}" = xyes; then
1995 ${srcdir}/ada/config-lang.in)
1996 if test x$have_gnat = xyes ; then
1997 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2001 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2010 # Make gthr-default.h if we have a thread file.
2012 if test $thread_file != single; then
2013 rm -f gthr-default.h
2014 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2015 gthread_flags=-DHAVE_GTHR_DEFAULT
2017 AC_SUBST(gthread_flags)
2019 # Find out what GC implementation we want, or may, use.
2021 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2028 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2033 echo "Using $GGC for garbage collection."
2035 # Use the system's zlib library.
2037 zlibinc="-I\$(srcdir)/../zlib"
2038 AC_ARG_WITH(system-zlib,
2039 [ --with-system-zlib use installed libz],
2046 dnl Very limited version of automake's enable-maintainer-mode
2048 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2049 dnl maintainer-mode is disabled by default
2050 AC_ARG_ENABLE(maintainer-mode,
2051 [ --enable-maintainer-mode
2052 enable make rules and dependencies not useful
2053 (and sometimes confusing) to the casual installer],
2054 maintainer_mode=$enableval,
2057 AC_MSG_RESULT($maintainer_mode)
2059 if test "$maintainer_mode" = "yes"; then
2066 # With Setjmp/Longjmp based exception handling.
2067 AC_ARG_ENABLE(sjlj-exceptions,
2068 [ --enable-sjlj-exceptions
2069 arrange to use setjmp/longjmp exception handling],
2070 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
2071 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
2072 [Define 0/1 to force the choice for exception handling model.])])
2074 # Make empty files to contain the specs and options for each language.
2075 # Then add #include lines to for a compiler that has specs and/or options.
2080 rm -f specs.h options.h gencheck.h
2081 touch specs.h options.h gencheck.h
2082 for subdir in . $subdirs
2084 if test -f $srcdir/$subdir/lang-specs.h; then
2085 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
2086 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2088 if test -f $srcdir/$subdir/lang-options.h; then
2089 echo "#include \"$subdir/lang-options.h\"" >>options.h
2090 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2092 if test -f $srcdir/$subdir/$subdir-tree.def; then
2093 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
2094 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2098 # These (without "all_") are set in each config-lang.in.
2099 # `language' must be a single word so is spelled singularly.
2105 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc'
2106 # List of language makefile fragments.
2111 # Add the language fragments.
2112 # Languages are added via two mechanisms. Some information must be
2113 # recorded in makefile variables, these are defined in config-lang.in.
2114 # We accumulate them and plug them into the main Makefile.
2115 # The other mechanism is a set of hooks for each of the main targets
2116 # like `clean', `install', etc.
2118 language_fragments="Make-lang"
2119 language_hooks="Make-hooks"
2121 for s in .. $subdirs
2133 . ${srcdir}/$s/config-lang.in
2134 if test "x$language" = x
2136 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2139 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2140 if test -f ${srcdir}/$s/Makefile.in
2141 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2143 all_languages="$all_languages $language"
2144 if test "x$boot_language" = xyes
2146 all_boot_languages="$all_boot_languages $language"
2148 all_compilers="$all_compilers $compilers"
2149 all_stagestuff="$all_stagestuff $stagestuff"
2150 all_diff_excludes="$all_diff_excludes $diff_excludes"
2151 all_headers="$all_headers $headers"
2152 all_outputs="$all_outputs $outputs"
2153 all_lib2funcs="$all_lib2funcs $lib2funcs"
2158 for language in .. $all_languages
2160 if test $language != ".."
2162 check_languages="$check_languages check-$language"
2166 # Since we can't use `::' targets, we link each language in
2167 # with a set of hooks, reached indirectly via lang.${target}.
2171 target_list="all.build all.cross start.encap rest.encap \
2172 info dvi generated-manpages \
2173 install-normal install-common install-info install-man \
2175 mostlyclean clean distclean extraclean maintainer-clean \
2176 stage1 stage2 stage3 stage4"
2177 for t in $target_list
2180 for lang in .. $all_languages
2182 if test $lang != ".."; then
2186 echo "lang.$t: $x" >> Make-hooks
2191 echo "dir ." > .gdbinit
2192 echo "dir ${srcdir}" >> .gdbinit
2193 if test x$gdb_needs_out_file_path = xyes
2195 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2197 if test "x$subdirs" != x; then
2200 echo "dir ${srcdir}/$s" >> .gdbinit
2203 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2205 # Define variables host_canonical and build_canonical
2206 # because some Cygnus local changes in the Makefile depend on them.
2207 build_canonical=${build}
2208 host_canonical=${host}
2210 if test "${host}" != "${target}" ; then
2211 target_subdir=${target_alias}/
2213 AC_SUBST(build_canonical)
2214 AC_SUBST(host_canonical)
2215 AC_SUBST(target_subdir)
2217 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2218 # absolute path for gcc_tooldir based on inserting the number of up-directory
2219 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2220 # $(libsubdir)/@(unlibsubdir) based path.
2221 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2222 # make and thus we'd get different behavior depending on where we built the
2224 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2225 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2227 changequote(<<, >>)dnl
2228 # An explanation of the sed strings:
2229 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2230 # -e 's|/$||' match a trailing forward slash and eliminates it
2231 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2232 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2234 # (*) Note this pattern overwrites the first character of the string
2235 # with a forward slash if one is not already present. This is not a
2236 # problem because the exact names of the sub-directories concerned is
2237 # unimportant, just the number of them matters.
2239 # The practical upshot of these patterns is like this:
2241 # prefix exec_prefix result
2242 # ------ ----------- ------
2244 # /foo/ /foo/bar ../
2245 # /foo /foo/bar/ ../
2246 # /foo/ /foo/bar/ ../
2247 # /foo /foo/bar/ugg ../../
2250 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2251 changequote([, ])dnl
2253 AC_SUBST(gcc_tooldir)
2256 # Find a directory in which to install a shared libgcc.
2258 AC_ARG_ENABLE(version-specific-runtime-libs,
2259 [ --enable-version-specific-runtime-libs
2260 specify that runtime libraries should be
2261 installed in a compiler-specific directory])
2263 AC_ARG_WITH(slibdir,
2264 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2265 slibdir="$with_slibdir",
2266 if test "${enable_version_specific_runtime_libs+set}" = set; then
2267 slibdir='$(libsubdir)'
2268 elif test "$host" != "$target"; then
2269 slibdir='$(build_tooldir)/lib'
2275 # Nothing to do for FLOAT_H, float_format already handled.
2279 # Process the language and host/target makefile fragments.
2280 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2282 # Substitute configuration variables
2284 AC_SUBST(all_boot_languages)
2285 AC_SUBST(all_compilers)
2286 AC_SUBST(all_diff_excludes)
2287 AC_SUBST(all_headers)
2288 AC_SUBST(all_lang_makefiles)
2289 AC_SUBST(all_languages)
2290 AC_SUBST(all_lib2funcs)
2291 AC_SUBST(all_stagestuff)
2292 AC_SUBST(build_exeext)
2293 AC_SUBST(build_install_headers_dir)
2294 AC_SUBST(build_xm_file_list)
2295 AC_SUBST(build_xm_file)
2296 AC_SUBST(build_xm_defines)
2297 AC_SUBST(check_languages)
2298 AC_SUBST(cc_set_by_configure)
2299 AC_SUBST(quoted_cc_set_by_configure)
2300 AC_SUBST(cpp_install_dir)
2301 AC_SUBST(dep_host_xmake_file)
2302 AC_SUBST(dep_tmake_file)
2303 AC_SUBST(extra_headers_list)
2304 AC_SUBST(extra_objs)
2305 AC_SUBST(extra_parts)
2306 AC_SUBST(extra_passes)
2307 AC_SUBST(extra_programs)
2308 AC_SUBST(float_h_file)
2309 AC_SUBST(gcc_config_arguments)
2310 AC_SUBST(gcc_gxx_include_dir)
2311 AC_SUBST(libstdcxx_incdir)
2312 AC_SUBST(gcc_version)
2313 AC_SUBST(gcc_version_full)
2314 AC_SUBST(gcc_version_trigger)
2315 AC_SUBST(host_exeext)
2316 AC_SUBST(host_extra_gcc_objs)
2317 AC_SUBST(host_xm_file_list)
2318 AC_SUBST(host_xm_file)
2319 AC_SUBST(host_xm_defines)
2321 AC_SUBST(lang_options_files)
2322 AC_SUBST(lang_specs_files)
2323 AC_SUBST(lang_tree_files)
2324 AC_SUBST(local_prefix)
2326 AC_SUBST(objc_boehm_gc)
2328 AC_SUBST(out_object_file)
2329 AC_SUBST(stage_prefix_set_by_configure)
2330 AC_SUBST(symbolic_link)
2331 AC_SUBST(thread_file)
2332 AC_SUBST(tm_file_list)
2334 AC_SUBST(tm_p_file_list)
2337 AC_SUBST(xm_defines)
2338 AC_SUBST(c_target_objs)
2339 AC_SUBST(cxx_target_objs)
2340 AC_SUBST(target_cpu_default)
2342 AC_SUBST_FILE(target_overrides)
2343 AC_SUBST_FILE(host_overrides)
2344 AC_SUBST_FILE(language_fragments)
2345 AC_SUBST_FILE(language_hooks)
2347 # Echo that links are built
2348 if test x$host = x$target
2356 if test x$host != x$build
2358 str3=" on a $build system"
2361 if test "x$str2" != x || test "x$str3" != x
2366 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2368 if test "x$str2" != x || test "x$str3" != x
2370 echo " ${str2}${str3}." 1>&2
2373 # Truncate the target if necessary
2374 if test x$host_truncate_target != x; then
2375 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2378 # Configure the subdirectories
2379 # AC_CONFIG_SUBDIRS($subdirs)
2381 # Create the Makefile
2382 # and configure language subdirectories
2383 AC_OUTPUT($all_outputs,
2385 case x$CONFIG_HEADERS in
2386 xauto-host.h:config.in)
2389 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2390 # bootstrapping and the installation procedure can still use
2391 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2392 # FLAGS_TO_PASS has been modified to solve the problem there.
2393 # This is virtually a duplicate of what happens in configure.lang; we do
2394 # an extra check to make sure this only happens if ln -s can be used.
2395 if test "$symbolic_link" = "ln -s"; then
2396 for d in .. ${subdirs} fixinc ; do
2397 if test $d != ..; then
2400 for t in stage1 stage2 stage3 stage4 include
2403 $symbolic_link ../$t $t 2>/dev/null
2409 # Avoid having to add intl to our include paths.
2410 if test -f intl/libintl.h; then
2411 echo creating libintl.h
2412 echo '#include "intl/libintl.h"' >libintl.h
2419 target_alias='${target_alias}'
2421 subdirs='${subdirs}'
2422 symbolic_link='${symbolic_link}'
2423 program_transform_set='${program_transform_set}'
2424 program_transform_name='${program_transform_name}'
2425 dep_host_xmake_file='${dep_host_xmake_file}'
2426 host_xmake_file='${host_xmake_file}'
2427 dep_tmake_file='${dep_tmake_file}'
2428 tmake_file='${tmake_file}'
2429 thread_file='${thread_file}'
2430 gcc_config_arguments='${gcc_config_arguments}'
2431 gcc_version='${gcc_version}'
2432 gcc_version_full='${gcc_version_full}'
2433 gcc_version_trigger='${gcc_version_trigger}'
2434 local_prefix='${local_prefix}'
2435 build_install_headers_dir='${build_install_headers_dir}'
2436 build_exeext='${build_exeext}'
2437 host_exeext='${host_exeext}'
2438 out_file='${out_file}'
2439 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
2440 SET_MAKE='${SET_MAKE}'
2441 target_list='${target_list}'
2442 target_overrides='${target_overrides}'
2443 host_overrides='${host_overrides}'
2444 cpp_install_dir='${cpp_install_dir}'