1 # configure.in for GNU CC
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 GNU CC.
8 #GNU CC is free software; you can redistribute it and/or modify
9 #it under the terms of the GNU General Public License as published by
10 #the Free Software Foundation; either version 2, or (at your option)
13 #GNU CC is distributed in the hope that it will be useful,
14 #but WITHOUT ANY WARRANTY; without even the implied warranty of
15 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 #GNU General Public License for more details.
18 #You should have received a copy of the GNU General Public License
19 #along with GNU CC; see the file COPYING. If not, write to
20 #the Free Software Foundation, 59 Temple Place - Suite 330,
21 #Boston, MA 02111-1307, USA.
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 | 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$enable_objc_gc = xno; then
312 [ --with-dwarf2 force the default debug format to be DWARF2.],
313 dwarf2="$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$pkg" = "Xlibgcc"; then
332 ], [enable_shared=yes])
333 AC_SUBST(enable_shared)
335 # Determine the host, build, and target systems
338 # Find the native compiler
341 # autoconf is lame and doesn't give us any substitution variable for this.
342 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
343 NO_MINUS_C_MINUS_O=yes
345 OUTPUT_OPTION='-o $@'
347 AC_SUBST(NO_MINUS_C_MINUS_O)
348 AC_SUBST(OUTPUT_OPTION)
350 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
351 ac_cv_prog_cc_no_long_long,
352 [save_CFLAGS="$CFLAGS"
353 CFLAGS="-Wno-long-long"
354 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
355 ac_cv_prog_cc_no_long_long=no)
356 CFLAGS="$save_CFLAGS"])
358 if test $ac_cv_prog_cc_no_long_long = yes; then
359 strict1_warn="-pedantic -Wno-long-long"
361 AC_SUBST(strict1_warn)
369 # sizeof(char) is 1 by definition.
370 gcc_AC_COMPILE_CHECK_SIZEOF(short)
371 gcc_AC_COMPILE_CHECK_SIZEOF(int)
372 gcc_AC_COMPILE_CHECK_SIZEOF(long)
373 if test $ac_cv_c_long_long = yes; then
374 gcc_AC_COMPILE_CHECK_SIZEOF(long long)
376 if test $ac_cv_c___int64 = yes; then
377 gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
380 # If the native compiler is GCC, we can enable warnings even in stage1.
381 # That's useful for people building cross-compilers, or just running a
384 if test "x$GCC" = "xyes"; then
385 warn_cflags='$(GCC_WARN_CFLAGS)'
387 AC_SUBST(warn_cflags)
389 # Stage specific cflags for build.
395 stage1_cflags="-Wa,-J"
401 AC_SUBST(stage1_cflags)
405 AC_MSG_CHECKING([whether a default assembler was specified])
406 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
407 if test x"$gas_flag" = x"no"; then
408 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
410 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
416 AC_MSG_CHECKING([whether a default linker was specified])
417 if test x"${DEFAULT_LINKER+set}" = x"set"; then
418 if test x"$gnu_ld_flag" = x"no"; then
419 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
421 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
427 AC_MSG_CHECKING(for GNU C library)
428 AC_CACHE_VAL(gcc_cv_glibc,
430 [#include <features.h>],[
431 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
432 #error Not a GNU C library system
436 AC_MSG_RESULT($gcc_cv_glibc)
437 if test $gcc_cv_glibc = yes; then
438 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
441 # Find some useful tools
452 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
453 fcntl.h unistd.h stab.h sys/file.h sys/time.h \
454 sys/resource.h sys/param.h sys/times.h sys/stat.h \
455 direct.h malloc.h langinfo.h iconv.h stdbool.h)
457 # Check for thread headers.
458 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
459 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
461 # This test can't be done till we know if we have limits.h.
464 # See if GNAT has been installed
465 AC_CHECK_PROG(have_gnat, gnatbind, yes, no)
467 # See if we have the mktemp command.
468 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
470 # Do we have a single-tree copy of texinfo?
471 if test -f $srcdir/../texinfo/Makefile.in; then
472 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
473 gcc_cv_prog_makeinfo_modern=yes
474 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
476 # See if makeinfo has been installed and is modern enough
477 # that we can use it.
478 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
479 [GNU texinfo.* \([0-9][0-9.]*\)],
483 if test $gcc_cv_prog_makeinfo_modern = no; then
485 *** Makeinfo is missing or too old.
486 *** Info documentation will not be built.])
489 BUILD_INFO=info AC_SUBST(BUILD_INFO)
492 # Is pod2man recent enough to regenerate manpages?
493 AC_MSG_CHECKING([for recent Pod::Man])
494 if perl -e 'use 1.10 Pod::Man' >/dev/null 2>&1; then
496 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
503 dnl Don't use AC_PROG_LEX; we insist on flex.
504 dnl LEXLIB is not useful in gcc.
505 if test -f $srcdir/../flex/skel.c; then
506 FLEX='$(objdir)/../flex/flex'
508 AC_CHECK_PROG(FLEX, flex, flex, false)
512 # The -L switch is so bison can find its skeleton file.
513 if test -f $srcdir/../bison/bison.simple; then
514 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
516 AC_CHECK_PROG(BISON, bison, bison, false)
519 # See if the stage1 system preprocessor understands the ANSI C
520 # preprocessor stringification operator.
523 # Use <inttypes.h> only if it exists,
524 # doesn't clash with <sys/types.h>, and declares intmax_t.
525 AC_MSG_CHECKING(for inttypes.h)
526 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
528 [#include <sys/types.h>
529 #include <inttypes.h>],
531 [gcc_cv_header_inttypes_h=yes],
532 gcc_cv_header_inttypes_h=no)])
533 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
534 if test $gcc_cv_header_inttypes_h = yes; then
535 AC_DEFINE(HAVE_INTTYPES_H, 1,
536 [Define if you have a working <inttypes.h> header file.])
539 dnl Disabled until we have a complete test for buggy enum bitfields.
540 dnl gcc_AC_C_ENUM_BF_UNSIGNED
542 AC_CHECK_FUNCS(strtoul bsearch putenv popen bcopy \
543 strchr strrchr kill getrlimit setrlimit atoll atoq \
544 sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
545 fputs_unlocked getrusage iconv nl_langinfo)
547 AC_CHECK_TYPE(ssize_t, int)
549 # Try to determine the array type of the second argument of getgroups
550 # for the target system (int or gid_t).
552 if test "${target}" = "${build}"; then
553 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
556 # This condition may need some tweaking. It should include all
557 # targets where the array type of the second argument of getgroups
558 # is int and the type of gid_t is not equivalent to int.
559 *-*-sunos* | *-*-ultrix*)
560 TARGET_GETGROUPS_T=int
563 TARGET_GETGROUPS_T=gid_t
567 AC_SUBST(TARGET_GETGROUPS_T)
569 gcc_AC_FUNC_VFPRINTF_DOPRNT
571 gcc_AC_FUNC_PRINTF_PTR
576 *** UWIN may not be used as a host platform because
577 *** linking with posix.dll is not allowed by the GNU GPL])
581 AC_FUNC_MMAP_ANYWHERE
584 # We will need to find libiberty.h and ansidecl.h
585 saved_CFLAGS="$CFLAGS"
586 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
587 gcc_AC_CHECK_DECLS(bcopy \
588 getenv atol sbrk abort atof getcwd getwd \
589 strsignal putc_unlocked fputs_unlocked strstr environ \
590 malloc realloc calloc free basename getopt, , ,[
591 #include "gansidecl.h"
592 #include "system.h"])
594 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
595 #include "gansidecl.h"
597 #ifdef HAVE_SYS_RESOURCE_H
598 #include <sys/resource.h>
602 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
603 CFLAGS="$saved_CFLAGS"
605 # mkdir takes a single argument on some systems.
606 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
616 build_install_headers_dir=install-headers-tar
621 host_truncate_target=
624 # Decode the host machine, then the target machine.
625 # For the host machine, we save the xm_file variable as host_xm_file;
626 # then we decode the target machine and forget everything else
627 # that came from the host machine.
628 for machine in $build $host $target; do
629 . ${srcdir}/config.gcc
632 extra_objs="${host_extra_objs} ${extra_objs}"
634 # Default the target-machine variables that were not explicitly set.
635 if test x"$tm_file" = x
636 then tm_file=$cpu_type/$cpu_type.h; fi
638 if test x"$extra_headers" = x
639 then extra_headers=; fi
641 if test x"$xm_file" = x
642 then xm_file=$cpu_type/xm-$cpu_type.h; fi
644 if test x$md_file = x
645 then md_file=$cpu_type/$cpu_type.md; fi
647 if test x$out_file = x
648 then out_file=$cpu_type/$cpu_type.c; fi
650 if test x"$tmake_file" = x
651 then tmake_file=$cpu_type/t-$cpu_type
654 if test x"$dwarf2" = xyes
655 then tm_file="$tm_file tm-dwarf2.h"
658 if test x$float_format = x
659 then float_format=i64
662 if test $float_format = none
663 then float_h_file=Makefile.in
664 else float_h_file=float-$float_format.h
667 # Handle cpp installation.
668 if test x$enable_cpp != xno
670 tmake_file="$tmake_file t-install-cpp"
673 # Say what files are being used for the output code and MD file.
674 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
675 echo "Using \`$srcdir/config/$md_file' as machine description file."
677 # If any of the xm_file variables contain nonexistent files, warn
678 # about them and drop them. But $cpu/xm-$cpu.h is allowed not to
679 # exist, if we have nothing for it to do.
682 for x in $build_xm_file; do
683 if test -f $srcdir/config/$x
685 elif expr $x : '\([^/]*\)/xm-\1\.h' >/dev/null
687 else AC_MSG_WARN($srcdir/config/$x does not exist.)
693 for x in $host_xm_file; do
694 if test -f $srcdir/config/$x
696 elif expr $x : '\([^/]*\)/xm-\1\.h' >/dev/null
698 else AC_MSG_WARN($srcdir/config/$x does not exist.)
704 for x in $xm_file; do
705 if test -f $srcdir/config/$x
707 elif expr $x : '\([^/]*\)/xm-\1\.h' >/dev/null
709 else AC_MSG_WARN($srcdir/config/$x does not exist.)
716 for f in $tm_file; do
719 if test $count = ax; then
720 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
722 echo "Using the following target machine macro files:"
723 for f in $tm_file; do
724 echo " $srcdir/config/$f"
729 for f in $host_xm_file; do
732 if test $count = a; then
734 elif test $count = ax; then
735 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
737 echo "Using the following host machine macro files:"
738 for f in $host_xm_file; do
739 echo " $srcdir/config/$f"
743 if test "$host_xm_file" != "$build_xm_file"; then
745 for f in $build_xm_file; do
748 if test $count = a; then
750 elif test $count = ax; then
751 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
753 echo "Using the following build machine macro files:"
754 for f in $build_xm_file; do
755 echo " $srcdir/config/$f"
760 if test x$thread_file = x; then
761 if test x$target_thread_file != x; then
762 thread_file=$target_thread_file
768 # auto-host.h is the file containing items generated by autoconf and is
769 # the first file included by config.h.
770 # If host=build, it is correct to have hconfig include auto-host.h
771 # as well. If host!=build, we are in error and need to do more
772 # work to find out the build config parameters.
773 if test x$host = x$build
775 build_auto=auto-host.h
777 # We create a subdir, then run autoconf in the subdir.
778 # To prevent recursion we set host and build for the new
779 # invocation of configure to the build for this invocation
786 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
787 *) realsrcdir=../${srcdir};;
789 CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
790 --target=$target --host=$build --build=$build
792 # We just finished tests for the build machine, so rename
793 # the file auto-build.h in the gcc directory.
794 mv auto-host.h ../auto-build.h
797 build_auto=auto-build.h
800 tm_file="${tm_file} defaults.h"
801 host_xm_file="auto-host.h gansidecl.h ${host_xm_file} ${tm_file}"
802 build_xm_file="${build_auto} gansidecl.h ${build_xm_file} ${tm_file}"
803 xm_file="gansidecl.h ${xm_file} ${tm_file}"
805 # Truncate the target if necessary
806 if test x$host_truncate_target != x; then
807 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
810 # Get the version trigger filename from the toplevel
811 if test "${with_gcc_version_trigger+set}" = set; then
812 gcc_version_trigger=$with_gcc_version_trigger
814 gcc_version_trigger=${srcdir}/version.c
817 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
818 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
820 # Compile in configure arguments.
821 if test -f configargs.h ; then
822 # Being re-configured.
823 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
824 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
826 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
828 cat > configargs.h <<EOF
829 /* Generated automatically. */
830 static const char configuration_arguments[] = "$gcc_config_arguments";
834 # Internationalization
836 VERSION="$gcc_version"
837 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
838 [Define to the name of the distribution.])
839 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
840 [Define to the version of the distribution.])
846 # Enable NLS support by default
848 [ --enable-nls use Native Language Support (default)],
851 # if cross compiling, disable NLS support.
852 # It's not worth the trouble, at least for now.
854 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
855 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
859 # if NLS is enabled, also enable check in po subdir
860 if test $enable_nls = yes; then
869 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
871 # Windows32 Registry support for specifying GCC installation paths.
872 AC_ARG_ENABLE(win32-registry,
873 [ --disable-win32-registry
874 Disable lookup of installation paths in the
875 Registry on Windows hosts.
876 --enable-win32-registry Enable registry lookup (default).
877 --enable-win32-registry=KEY
878 Use KEY instead of GCC version as the last portion
879 of the registry key.],,)
881 AC_MSG_CHECKING(whether windows registry support is requested)
882 if test x$enable_win32_registry != xno; then
883 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
884 [Define to 1 if installation paths should be looked up in Windows32
885 Registry. Ignored on non windows32 hosts.])
891 # Check if user specified a different registry key.
892 case x${enable_win32_registry} in
895 gcc_cv_win32_registry_key="$VERSION"
898 # no registry lookup.
899 gcc_cv_win32_registry_key=''
902 # user-specified key.
903 gcc_cv_win32_registry_key="$enable_win32_registry"
907 if test x$enable_win32_registry != xno; then
908 AC_MSG_CHECKING(registry key on windows hosts)
909 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
910 [Define to be the last portion of registry key on windows hosts.])
911 AC_MSG_RESULT($gcc_cv_win32_registry_key)
914 # Get an absolute path to the GCC top-level source directory
920 # Conditionalize the makefile for this host machine.
921 # Make-host contains the concatenation of all host makefile fragments
922 # [there can be more than one]. This file is built by configure.frag.
923 host_overrides=Make-host
925 for f in .. ${host_xmake_file}
927 if test -f ${srcdir}/config/$f
929 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
933 # Conditionalize the makefile for this target machine.
934 # Make-target contains the concatenation of all host makefile fragments
935 # [there can be more than one]. This file is built by configure.frag.
936 target_overrides=Make-target
938 for f in .. ${tmake_file}
940 if test -f ${srcdir}/config/$f
942 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
946 # If the host doesn't support symlinks, modify CC in
947 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
948 # Otherwise, we can use "CC=$(CC)".
950 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
952 cc_set_by_configure="\$(CC)"
953 quoted_cc_set_by_configure="\$(CC)"
954 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
957 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
959 symbolic_link="cp -p"
963 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
964 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
965 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
969 out_object_file=`basename $out_file .c`.o
972 for f in $tm_file; do
974 gansidecl.h | defaults.h )
975 tm_file_list="${tm_file_list} $f" ;;
976 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
981 for f in $tm_p_file; do
982 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
986 for f in $host_xm_file; do
988 auto-host.h | gansidecl.h | defaults.h )
989 host_xm_file_list="${host_xm_file_list} $f" ;;
990 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
995 for f in $build_xm_file; do
997 auto-build.h | auto-host.h | gansidecl.h | defaults.h )
998 build_xm_file_list="${build_xm_file_list} $f" ;;
999 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1003 # Define macro CROSS_COMPILE in compilation
1004 # if this is a cross-compiler.
1005 # Also use all.cross instead of all.internal
1006 # and add cross-make to Makefile.
1007 cross_overrides="/dev/null"
1008 if test x$host != x$target
1010 cross_defines="CROSS=-DCROSS_COMPILE"
1011 cross_overrides="${topdir}/cross-make"
1014 # If this is a cross-compiler that does not
1015 # have its own set of headers then define
1018 # If this is using newlib, then define inhibit_libc in
1019 # LIBGCC2_CFLAGS. This will cause __eprintf to be left out of
1020 # libgcc.a, but that's OK because newlib should have its own version of
1023 if [test x$host != x$target] && [test x$with_headers = x]; then
1024 inhibit_libc=-Dinhibit_libc
1026 if [test x$with_newlib = xyes]; then
1027 inhibit_libc=-Dinhibit_libc
1030 AC_SUBST(inhibit_libc)
1032 # When building gcc with a cross-compiler, we need to fix a few things.
1033 # This must come after cross-make as we want all.build to override
1035 build_overrides="/dev/null"
1036 if test x$build != x$host
1038 build_overrides="${topdir}/build-make"
1041 # Expand extra_headers to include complete path.
1042 # This substitutes for lots of t-* files.
1044 if test "x$extra_headers" = x
1047 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1048 for file in $extra_headers;
1050 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1054 if test x$use_collect2 = xno; then
1058 # Add a definition of USE_COLLECT2 if system wants one.
1059 # Also tell toplev.c what to do.
1060 # This substitutes for lots of t-* files.
1061 if test x$use_collect2 = x
1066 will_use_collect2="collect2"
1067 maybe_use_collect2="-DUSE_COLLECT2"
1070 # If we have gas in the build tree, make a link to it.
1071 if test -f ../gas/Makefile; then
1072 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1075 # If we have nm in the build tree, make a link to it.
1076 if test -f ../binutils/Makefile; then
1077 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1080 # If we have ld in the build tree, make a link to it.
1081 if test -f ../ld/Makefile; then
1082 # if test x$use_collect2 = x; then
1083 # rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1085 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1089 # Figure out what assembler we will be using.
1090 AC_MSG_CHECKING(what assembler to use)
1092 gcc_cv_gas_major_version=
1093 gcc_cv_gas_minor_version=
1094 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1095 if test -x "$DEFAULT_ASSEMBLER"; then
1096 gcc_cv_as="$DEFAULT_ASSEMBLER"
1097 elif test -x "$AS"; then
1099 elif test -x as$host_exeext; then
1100 # Build using assembler in the current directory.
1101 gcc_cv_as=./as$host_exeext
1102 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1103 # Single tree build which includes gas.
1104 for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1107 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1109 if test x$gcc_cv_gas_version != x; then
1114 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1115 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1119 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1121 # Search the same directories that the installed compiler will
1122 # search. Else we may find the wrong assembler and lose. If we
1123 # do not find a suitable assembler binary, then try the user's
1126 # Also note we have to check MD_EXEC_PREFIX before checking the
1127 # user's path. Unfortunately, there is no good way to get at the
1128 # value of MD_EXEC_PREFIX here. So we do a brute force search
1129 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1130 # to be fixed as part of the make/configure rewrite too.
1132 if test "x$exec_prefix" = xNONE; then
1133 if test "x$prefix" = xNONE; then
1134 test_prefix=/usr/local
1139 test_prefix=$exec_prefix
1142 # If the loop below does not find an assembler, then use whatever
1143 # one we can find in the users's path.
1147 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1148 $test_prefix/lib/gcc-lib/$target \
1149 /usr/lib/gcc/$target/$gcc_version \
1150 /usr/lib/gcc/$target \
1151 $test_prefix/$target/bin/$target/$gcc_version \
1152 $test_prefix/$target/bin \
1157 /bsd43/usr/lib/cmplrs/cc \
1158 /usr/cross64/usr/bin \
1159 /usr/lib/cmplrs/cc \
1160 /sysv/usr/lib/cmplrs/cc \
1161 /svr4/usr/lib/cmplrs/cc \
1164 for dir in $test_dirs; do
1165 if test -f $dir/as$host_exeext; then
1166 gcc_cv_as=$dir/as$host_exeext
1171 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1172 AC_MSG_RESULT("newly built gas")
1174 AC_MSG_RESULT($gcc_cv_as)
1177 # Figure out what nm we will be using.
1178 AC_MSG_CHECKING(what nm to use)
1179 if test -x nm$host_exeext; then
1180 gcc_cv_nm=./nm$host_exeext
1181 elif test x$host = x$target; then
1183 gcc_cv_nm=nm$host_exeext
1185 AC_MSG_RESULT($gcc_cv_nm)
1187 # Figure out what assembler alignment features are present.
1188 AC_MSG_CHECKING(assembler alignment features)
1189 gcc_cv_as_alignment_features=none
1190 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1191 # Gas version 2.6 and later support for .balign and .p2align.
1192 # bytes to skip when using .p2align.
1193 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1194 gcc_cv_as_alignment_features=".balign and .p2align"
1195 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1197 # Gas version 2.8 and later support specifying the maximum
1198 # bytes to skip when using .p2align.
1199 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1200 gcc_cv_as_alignment_features=".p2align including maximum skip"
1201 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1203 elif test x$gcc_cv_as != x; then
1204 # Check if we have .balign and .p2align
1205 echo ".balign 4" > conftest.s
1206 echo ".p2align 2" >> conftest.s
1207 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1208 gcc_cv_as_alignment_features=".balign and .p2align"
1209 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1211 rm -f conftest.s conftest.o
1212 # Check if specifying the maximum bytes to skip when
1213 # using .p2align is supported.
1214 echo ".p2align 4,,7" > conftest.s
1215 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1216 gcc_cv_as_alignment_features=".p2align including maximum skip"
1217 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1219 rm -f conftest.s conftest.o
1221 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1223 AC_MSG_CHECKING(assembler subsection support)
1224 gcc_cv_as_subsections=no
1225 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1226 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1227 gcc_cv_as_subsections="working .subsection -1"
1229 elif test x$gcc_cv_as != x; then
1230 # Check if we have .subsection
1231 echo ".subsection 1" > conftest.s
1232 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1233 gcc_cv_as_subsections=".subsection"
1234 if test x$gcc_cv_nm != x; then
1235 cat > conftest.s <<EOF
1236 conftest_label1: .word 0
1238 conftest_label2: .word 0
1241 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1242 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1243 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1244 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1247 gcc_cv_as_subsections="working .subsection -1"
1252 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1254 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1255 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1256 [Define if your assembler supports .subsection and .subsection -1 starts
1257 emitting at the beginning of your section.])
1259 AC_MSG_RESULT($gcc_cv_as_subsections)
1261 AC_MSG_CHECKING(assembler weak support)
1263 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1264 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1265 gcc_cv_as_weak="yes"
1267 elif test x$gcc_cv_as != x; then
1268 # Check if we have .weak
1269 echo " .weak foobar" > conftest.s
1270 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1271 gcc_cv_as_weak="yes"
1273 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1275 if test x"$gcc_cv_as_weak" = xyes; then
1276 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1278 AC_MSG_RESULT($gcc_cv_as_weak)
1280 AC_MSG_CHECKING(assembler hidden support)
1282 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1283 if test "$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
1284 gcc_cv_as_hidden="yes"
1286 elif test x$gcc_cv_as != x; then
1287 # Check if we have .hidden
1288 echo " .hidden foobar" > conftest.s
1289 echo "foobar:" >> conftest.s
1290 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1291 gcc_cv_as_hidden="yes"
1293 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1295 if test x"$gcc_cv_as_hidden" = xyes; then
1296 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1297 [Define if your assembler supports .hidden.])
1299 AC_MSG_RESULT($gcc_cv_as_hidden)
1301 AC_MSG_CHECKING(assembler leb128 support)
1303 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1304 if test "$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
1305 gcc_cv_as_leb128="yes"
1307 elif test x$gcc_cv_as != x; then
1308 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1309 cat > conftest.s <<EOF
1317 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1318 gcc_cv_as_leb128="yes"
1320 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1322 if test x"$gcc_cv_as_leb128" = xyes; then
1323 AC_DEFINE(HAVE_AS_LEB128, 1,
1324 [Define if your assembler supports .uleb128.])
1326 AC_MSG_RESULT($gcc_cv_as_leb128)
1330 AC_CACHE_CHECK([assembler .register pseudo-op support],
1331 gcc_cv_as_register_pseudo_op, [
1332 gcc_cv_as_register_pseudo_op=unknown
1333 if test x$gcc_cv_as != x; then
1334 # Check if we have .register
1335 echo ".register %g2, #scratch" > conftest.s
1336 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1337 gcc_cv_as_register_pseudo_op=yes
1339 gcc_cv_as_register_pseudo_op=no
1341 rm -f conftest.s conftest.o
1344 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1345 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1346 [Define if your assembler supports .register.])
1349 AC_CACHE_CHECK([assembler supports -relax],
1350 gcc_cv_as_relax_opt, [
1351 gcc_cv_as_relax_opt=unknown
1352 if test x$gcc_cv_as != x; then
1353 # Check if gas supports -relax
1354 echo ".text" > conftest.s
1355 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1356 gcc_cv_as_relax_opt=yes
1358 gcc_cv_as_relax_opt=no
1360 rm -f conftest.s conftest.o
1363 if test "x$gcc_cv_as_relax_opt" = xyes; then
1364 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1365 [Define if your assembler supports -relax option.])
1370 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1371 gcc_cv_as_flags64, [
1372 if test -n "$gcc_cv_as"; then
1373 echo ".xword foo" > conftest.s
1374 gcc_cv_as_flags64=no
1375 for flag in "-xarch=v9" "-64 -Av9"; do
1376 if $gcc_cv_as $flag -o conftest.o conftest.s \
1377 > /dev/null 2>&1; then
1378 gcc_cv_as_flags64=$flag
1382 rm -f conftest.s conftest.o
1384 if test "$gas" = yes; then
1385 gcc_cv_as_flags64="-64 -Av9"
1387 gcc_cv_as_flags64="-xarch=v9"
1391 if test "x$gcc_cv_as_flags64" = xno; then
1393 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1394 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1397 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1398 [Define if the assembler supports 64bit sparc.])
1401 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1405 if test "x$gcc_cv_as_flags64" != xno; then
1406 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1407 gcc_cv_as_offsetable_lo10, [
1408 gcc_cv_as_offsetable_lo10=unknown
1409 if test "x$gcc_cv_as" != x; then
1410 # Check if assembler has offsetable %lo()
1411 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1412 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1413 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1415 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1416 > /dev/null 2>&1; then
1417 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1418 gcc_cv_as_offsetable_lo10=no
1420 gcc_cv_as_offsetable_lo10=yes
1423 gcc_cv_as_offsetable_lo10=no
1425 rm -f conftest.s conftest.o conftest1.s conftest1.o
1428 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1429 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1430 [Define if your assembler supports offsetable %lo().])
1438 AC_MSG_CHECKING(assembler instructions)
1439 gcc_cv_as_instructions=
1440 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1441 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1442 gcc_cv_as_instructions="filds fists"
1444 elif test x$gcc_cv_as != x; then
1445 set "filds fists" "filds mem; fists mem"
1448 echo "$2" > conftest.s
1449 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1450 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1454 rm -f conftest.s conftest.o
1456 if test x"$gcc_cv_as_instructions" != x; then
1457 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1459 AC_MSG_RESULT($gcc_cv_as_instructions)
1463 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1464 gcc_cv_as_dwarf2_debug_line=no
1465 # ??? Not all targets support dwarf2 debug_line, even within a version
1466 # of gas. Moreover, we need to emit a valid instruction to trigger any
1467 # info to the output file. So, as supported targets are added to gas 2.11,
1468 # add some instruction here to (also) show we expect this might work.
1469 # ??? Once 2.11 is released, probably need to add first known working
1470 # version to the per-target configury.
1472 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-*)
1479 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1481 if test "$gcc_cv_gas_major_version" -eq 2 \
1482 -a "$gcc_cv_gas_minor_version" -ge 11 \
1483 -o "$gcc_cv_gas_major_version" -gt 2 \
1484 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1485 && test x"$insn" != x ; then
1486 gcc_cv_as_dwarf2_debug_line="yes"
1488 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1489 echo ' .file 0 "conftest.s"' > conftest.s
1490 echo ' .loc 0 3 0' >> conftest.s
1491 echo " $insn" >> conftest.s
1492 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1493 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1494 gcc_cv_as_dwarf2_debug_line="yes"
1496 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1498 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1499 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1500 [Define if your assembler supports dwarf2 .file/.loc directives.])
1502 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1504 # Figure out what language subdirectories are present.
1505 # Look if the user specified --enable-languages="..."; if not, use
1506 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1508 if test x"${enable_languages+set}" != xset; then
1509 if test x"${LANGUAGES+set}" = xset; then
1510 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1512 enable_languages=all
1515 if test x"${enable_languages}" = x; then
1516 AC_MSG_ERROR([--enable-languages needs at least one argument])
1520 # First scan to see if an enabled language requires some other language.
1521 # We assume that a given config-lang.in will list all the language
1522 # front ends it requires, even if some are required indirectly.
1523 for lang in ${srcdir}/*/config-lang.in ..
1528 # The odd quoting in the next line works around
1529 # an apparent bug in bash 1.12 on linux.
1531 ${srcdir}/[*]/config-lang.in)
1534 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1535 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
1536 for other in $this_lang_requires
1538 case ,${enable_languages}, in
1544 enable_languages="$enable_languages,$other"
1554 for lang in ${srcdir}/*/config-lang.in ..
1558 # The odd quoting in the next line works around
1559 # an apparent bug in bash 1.12 on linux.
1561 ${srcdir}/[*]/config-lang.in) ;;
1563 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1564 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
1565 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
1566 if test "x$lang_alias" = x
1568 echo "$lang doesn't set \$language." 1>&2
1571 case ${build_by_default},${enable_languages}, in
1572 *,$lang_alias,*) add_this_lang=yes ;;
1573 no,*) add_this_lang=no ;;
1574 *,all,*) add_this_lang=yes ;;
1575 *) add_this_lang=no ;;
1577 if test x"${add_this_lang}" = xyes; then
1579 ${srcdir}/ada/config-lang.in)
1580 if test x$have_gnat = xyes ; then
1581 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1585 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1594 # Make gthr-default.h if we have a thread file.
1596 if test $thread_file != single; then
1597 rm -f gthr-default.h
1598 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1599 gthread_flags=-DHAVE_GTHR_DEFAULT
1601 AC_SUBST(gthread_flags)
1603 # Find out what GC implementation we want, or may, use.
1605 [ --with-gc={simple,page} Choose the garbage collection mechanism to use
1606 with the compiler.],
1612 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1617 echo "Using $GGC for garbage collection."
1619 # Use the system's zlib library.
1621 zlibinc="-I\$(srcdir)/../zlib"
1622 AC_ARG_WITH(system-zlib,
1623 [ --with-system-zlib use installed libz],
1630 AC_DEFINE_UNQUOTED(ENABLE_STD_NAMESPACE, 1,
1631 [Define to 1 if you want to enable namespaces (-fhonor-std) by default.])
1633 dnl Very limited version of automake's enable-maintainer-mode
1635 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1636 dnl maintainer-mode is disabled by default
1637 AC_ARG_ENABLE(maintainer-mode,
1638 [ --enable-maintainer-mode enable make rules and dependencies not useful
1639 (and sometimes confusing) to the casual installer],
1640 maintainer_mode=$enableval,
1643 AC_MSG_RESULT($maintainer_mode)
1645 if test "$maintainer_mode" = "yes"; then
1652 # Make empty files to contain the specs and options for each language.
1653 # Then add #include lines to for a compiler that has specs and/or options.
1658 rm -f specs.h options.h gencheck.h
1659 touch specs.h options.h gencheck.h
1660 for subdir in . $subdirs
1662 if test -f $srcdir/$subdir/lang-specs.h; then
1663 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1664 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1666 if test -f $srcdir/$subdir/lang-options.h; then
1667 echo "#include \"$subdir/lang-options.h\"" >>options.h
1668 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1670 if test -f $srcdir/$subdir/$subdir-tree.def; then
1671 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1672 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1676 # These (without "all_") are set in each config-lang.in.
1677 # `language' must be a single word so is spelled singularly.
1683 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1684 # List of language makefile fragments.
1689 # Add the language fragments.
1690 # Languages are added via two mechanisms. Some information must be
1691 # recorded in makefile variables, these are defined in config-lang.in.
1692 # We accumulate them and plug them into the main Makefile.
1693 # The other mechanism is a set of hooks for each of the main targets
1694 # like `clean', `install', etc.
1696 language_fragments="Make-lang"
1697 language_hooks="Make-hooks"
1699 for s in .. $subdirs
1711 . ${srcdir}/$s/config-lang.in
1712 if test "x$language" = x
1714 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1717 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1718 if test -f ${srcdir}/$s/Makefile.in
1719 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1721 all_languages="$all_languages $language"
1722 if test "x$boot_language" = xyes
1724 all_boot_languages="$all_boot_languages $language"
1726 all_compilers="$all_compilers $compilers"
1727 all_stagestuff="$all_stagestuff $stagestuff"
1728 all_diff_excludes="$all_diff_excludes $diff_excludes"
1729 all_headers="$all_headers $headers"
1730 all_outputs="$all_outputs $outputs"
1731 all_lib2funcs="$all_lib2funcs $lib2funcs"
1736 for language in .. $all_languages
1738 if test $language != ".."
1740 check_languages="$check_languages check-$language"
1744 # Since we can't use `::' targets, we link each language in
1745 # with a set of hooks, reached indirectly via lang.${target}.
1749 target_list="all.build all.cross start.encap rest.encap \
1751 install-normal install-common install-info install-man \
1753 mostlyclean clean distclean extraclean maintainer-clean \
1754 stage1 stage2 stage3 stage4"
1755 for t in $target_list
1758 for lang in .. $all_languages
1760 if test $lang != ".."; then
1764 echo "lang.$t: $x" >> Make-hooks
1769 echo "dir ." > .gdbinit
1770 echo "dir ${srcdir}" >> .gdbinit
1771 if test x$gdb_needs_out_file_path = xyes
1773 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1775 if test "x$subdirs" != x; then
1778 echo "dir ${srcdir}/$s" >> .gdbinit
1781 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
1783 # Define variables host_canonical and build_canonical
1784 # because some Cygnus local changes in the Makefile depend on them.
1785 build_canonical=${build}
1786 host_canonical=${host}
1788 if test "${host}" != "${target}" ; then
1789 target_subdir=${target}/
1791 AC_SUBST(build_canonical)
1792 AC_SUBST(host_canonical)
1793 AC_SUBST(target_subdir)
1795 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1796 # absolute path for gcc_tooldir based on inserting the number of up-directory
1797 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1798 # $(libsubdir)/@(unlibsubdir) based path.
1799 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1800 # make and thus we'd get different behavior depending on where we built the
1802 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1803 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1805 changequote(<<, >>)dnl
1806 # An explanation of the sed strings:
1807 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
1808 # -e 's|/$||' match a trailing forward slash and eliminates it
1809 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
1810 # -e 's|/[^/]*|../|g' replaces each occurance of /<directory> with ../
1812 # (*) Note this pattern overwrites the first character of the string
1813 # with a forward slash if one is not already present. This is not a
1814 # problem because the exact names of the sub-directories concerned is
1815 # unimportant, just the number of them matters.
1817 # The practical upshot of these patterns is like this:
1819 # prefix exec_prefix result
1820 # ------ ----------- ------
1822 # /foo/ /foo/bar ../
1823 # /foo /foo/bar/ ../
1824 # /foo/ /foo/bar/ ../
1825 # /foo /foo/bar/ugg ../../
1828 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1829 changequote([, ])dnl
1831 AC_SUBST(gcc_tooldir)
1834 # Find a directory in which to install a shared libgcc.
1836 AC_ARG_ENABLE(version-specific-runtime-libs,
1837 [ --enable-version-specific-runtime-libs Specify that runtime libraries shou
1838 ld be installed in a compiler-specific directory ])
1840 AC_ARG_WITH(slibdir,
1841 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
1842 slibdir="$with_slibdir",
1843 if test "${enable_version_specific_runtime_libs+set}" = set; then
1844 slibdir='$(libsubdir)'
1845 elif test "$host" != "$target"; then
1846 slibdir='$(build_tooldir)/lib'
1852 # Nothing to do for FLOAT_H, float_format already handled.
1856 # Process the language and host/target makefile fragments.
1857 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1859 # Substitute configuration variables
1861 AC_SUBST(all_boot_languages)
1862 AC_SUBST(all_compilers)
1863 AC_SUBST(all_diff_excludes)
1864 AC_SUBST(all_headers)
1865 AC_SUBST(all_lang_makefiles)
1866 AC_SUBST(all_languages)
1867 AC_SUBST(all_lib2funcs)
1868 AC_SUBST(all_stagestuff)
1869 AC_SUBST(build_exeext)
1870 AC_SUBST(build_install_headers_dir)
1871 AC_SUBST(build_xm_file_list)
1872 AC_SUBST(build_xm_file)
1873 AC_SUBST(build_xm_defines)
1874 AC_SUBST(check_languages)
1875 AC_SUBST(cc_set_by_configure)
1876 AC_SUBST(quoted_cc_set_by_configure)
1877 AC_SUBST(cpp_install_dir)
1878 AC_SUBST(dep_host_xmake_file)
1879 AC_SUBST(dep_tmake_file)
1880 AC_SUBST(extra_c_flags)
1881 AC_SUBST(extra_headers_list)
1882 AC_SUBST(extra_objs)
1883 AC_SUBST(extra_parts)
1884 AC_SUBST(extra_passes)
1885 AC_SUBST(extra_programs)
1886 AC_SUBST(float_h_file)
1887 AC_SUBST(gcc_config_arguments)
1888 AC_SUBST(gcc_gxx_include_dir)
1889 AC_SUBST(libstdcxx_incdir)
1890 AC_SUBST(gcc_version)
1891 AC_SUBST(gcc_version_full)
1892 AC_SUBST(gcc_version_trigger)
1893 AC_SUBST(host_exeext)
1894 AC_SUBST(host_extra_gcc_objs)
1895 AC_SUBST(host_xm_file_list)
1896 AC_SUBST(host_xm_file)
1897 AC_SUBST(host_xm_defines)
1899 AC_SUBST(lang_options_files)
1900 AC_SUBST(lang_specs_files)
1901 AC_SUBST(lang_tree_files)
1902 AC_SUBST(local_prefix)
1903 AC_SUBST(maybe_use_collect2)
1905 AC_SUBST(objc_boehm_gc)
1907 AC_SUBST(out_object_file)
1908 AC_SUBST(stage_prefix_set_by_configure)
1909 AC_SUBST(symbolic_link)
1910 AC_SUBST(thread_file)
1911 AC_SUBST(tm_file_list)
1913 AC_SUBST(tm_p_file_list)
1916 AC_SUBST(xm_defines)
1917 AC_SUBST(will_use_collect2)
1918 AC_SUBST(c_target_objs)
1919 AC_SUBST(cxx_target_objs)
1920 AC_SUBST(target_cpu_default)
1922 AC_SUBST_FILE(target_overrides)
1923 AC_SUBST_FILE(host_overrides)
1924 AC_SUBST(cross_defines)
1925 AC_SUBST_FILE(cross_overrides)
1926 AC_SUBST_FILE(build_overrides)
1927 AC_SUBST_FILE(language_fragments)
1928 AC_SUBST_FILE(language_hooks)
1930 # Echo that links are built
1931 if test x$host = x$target
1939 if test x$host != x$build
1941 str3=" on a $build system"
1944 if test "x$str2" != x || test "x$str3" != x
1949 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
1951 if test "x$str2" != x || test "x$str3" != x
1953 echo " ${str2}${str3}." 1>&2
1956 # Truncate the target if necessary
1957 if test x$host_truncate_target != x; then
1958 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1961 # Configure the subdirectories
1962 # AC_CONFIG_SUBDIRS($subdirs)
1964 # Create the Makefile
1965 # and configure language subdirectories
1966 AC_OUTPUT($all_outputs,
1968 case x$CONFIG_HEADERS in
1969 xauto-host.h:config.in)
1972 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
1973 # bootstrapping and the installation procedure can still use
1974 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
1975 # FLAGS_TO_PASS has been modified to solve the problem there.
1976 # This is virtually a duplicate of what happens in configure.lang; we do
1977 # an extra check to make sure this only happens if ln -s can be used.
1978 if test "$symbolic_link" = "ln -s"; then
1979 for d in .. ${subdirs} ; do
1980 if test $d != ..; then
1983 for t in stage1 stage2 stage3 stage4 include
1986 $symbolic_link ../$t $t 2>/dev/null
1992 # Avoid having to add intl to our include paths.
1993 if test -f intl/libintl.h; then
1994 echo creating libintl.h
1995 echo '#include "intl/libintl.h"' >libintl.h
2002 target_alias='${target_alias}'
2004 subdirs='${subdirs}'
2005 symbolic_link='${symbolic_link}'
2006 program_transform_set='${program_transform_set}'
2007 program_transform_name='${program_transform_name}'
2008 dep_host_xmake_file='${dep_host_xmake_file}'
2009 host_xmake_file='${host_xmake_file}'
2010 dep_tmake_file='${dep_tmake_file}'
2011 tmake_file='${tmake_file}'
2012 thread_file='${thread_file}'
2013 gcc_config_arguments='${gcc_config_arguments}'
2014 gcc_version='${gcc_version}'
2015 gcc_version_full='${gcc_version_full}'
2016 gcc_version_trigger='${gcc_version_trigger}'
2017 local_prefix='${local_prefix}'
2018 build_install_headers_dir='${build_install_headers_dir}'
2019 build_exeext='${build_exeext}'
2020 host_exeext='${host_exeext}'
2021 out_file='${out_file}'
2022 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
2023 SET_MAKE='${SET_MAKE}'
2024 target_list='${target_list}'
2025 target_overrides='${target_overrides}'
2026 host_overrides='${host_overrides}'
2027 cross_defines='${cross_defines}'
2028 cross_overrides='${cross_overrides}'
2029 build_overrides='${build_overrides}'
2030 cpp_install_dir='${cpp_install_dir}'