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)
370 # sizeof(char) is 1 by definition.
371 gcc_AC_COMPILE_CHECK_SIZEOF(short)
372 gcc_AC_COMPILE_CHECK_SIZEOF(int)
373 gcc_AC_COMPILE_CHECK_SIZEOF(long)
374 if test $ac_cv_c_long_long = yes; then
375 gcc_AC_COMPILE_CHECK_SIZEOF(long long)
377 if test $ac_cv_c___int64 = yes; then
378 gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
383 # If the native compiler is GCC, we can enable warnings even in stage1.
384 # That's useful for people building cross-compilers, or just running a
387 if test "x$GCC" = "xyes"; then
388 warn_cflags='$(GCC_WARN_CFLAGS)'
390 AC_SUBST(warn_cflags)
392 # Stage specific cflags for build.
398 stage1_cflags="-Wa,-J"
404 AC_SUBST(stage1_cflags)
408 AC_MSG_CHECKING([whether a default assembler was specified])
409 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
410 if test x"$gas_flag" = x"no"; then
411 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
413 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
419 AC_MSG_CHECKING([whether a default linker was specified])
420 if test x"${DEFAULT_LINKER+set}" = x"set"; then
421 if test x"$gnu_ld_flag" = x"no"; then
422 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
424 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
430 AC_MSG_CHECKING(for GNU C library)
431 AC_CACHE_VAL(gcc_cv_glibc,
433 [#include <features.h>],[
434 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
435 #error Not a GNU C library system
439 AC_MSG_RESULT($gcc_cv_glibc)
440 if test $gcc_cv_glibc = yes; then
441 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
444 # Find some useful tools
455 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
456 fcntl.h unistd.h stab.h sys/file.h sys/time.h \
457 sys/resource.h sys/param.h sys/times.h sys/stat.h \
458 direct.h malloc.h langinfo.h iconv.h stdbool.h)
460 # Check for thread headers.
461 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
462 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
464 # These tests can't be done till we know if we have limits.h.
466 gcc_AC_C_COMPILE_ENDIAN
467 gcc_AC_C_FLOAT_FORMAT
469 # See if GNAT has been installed
470 AC_CHECK_PROG(have_gnat, gnatbind, yes, no)
472 # See if we have the mktemp command.
473 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
475 # Do we have a single-tree copy of texinfo?
476 if test -f $srcdir/../texinfo/Makefile.in; then
477 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
478 gcc_cv_prog_makeinfo_modern=yes
479 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
481 # See if makeinfo has been installed and is modern enough
482 # that we can use it.
483 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
484 [GNU texinfo.* \([0-9][0-9.]*\)],
488 if test $gcc_cv_prog_makeinfo_modern = no; then
490 *** Makeinfo is missing or too old.
491 *** Info documentation will not be built.])
494 BUILD_INFO=info AC_SUBST(BUILD_INFO)
497 # Is pod2man recent enough to regenerate manpages?
498 AC_MSG_CHECKING([for recent Pod::Man])
499 if perl -e 'use 1.10 Pod::Man' >/dev/null 2>&1; then
501 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
508 dnl Don't use AC_PROG_LEX; we insist on flex.
509 dnl LEXLIB is not useful in gcc.
510 if test -f $srcdir/../flex/skel.c; then
511 FLEX='$(objdir)/../flex/flex'
513 AC_CHECK_PROG(FLEX, flex, flex, false)
517 # The -L switch is so bison can find its skeleton file.
518 if test -f $srcdir/../bison/bison.simple; then
519 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
521 AC_CHECK_PROG(BISON, bison, bison, false)
524 # See if the stage1 system preprocessor understands the ANSI C
525 # preprocessor stringification operator. (Used by symcat.h.)
528 # Use <inttypes.h> only if it exists,
529 # doesn't clash with <sys/types.h>, and declares intmax_t.
530 AC_MSG_CHECKING(for inttypes.h)
531 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
533 [#include <sys/types.h>
534 #include <inttypes.h>],
536 [gcc_cv_header_inttypes_h=yes],
537 gcc_cv_header_inttypes_h=no)])
538 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
539 if test $gcc_cv_header_inttypes_h = yes; then
540 AC_DEFINE(HAVE_INTTYPES_H, 1,
541 [Define if you have a working <inttypes.h> header file.])
544 dnl Disabled until we have a complete test for buggy enum bitfields.
545 dnl gcc_AC_C_ENUM_BF_UNSIGNED
547 AC_CHECK_FUNCS(strtoul bsearch popen \
548 strchr strrchr kill getrlimit setrlimit atoll atoq \
549 sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
550 fputs_unlocked getrusage iconv nl_langinfo lstat)
552 AC_CHECK_TYPE(ssize_t, int)
554 # Try to determine the array type of the second argument of getgroups
555 # for the target system (int or gid_t).
557 if test "${target}" = "${build}"; then
558 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
561 # This condition may need some tweaking. It should include all
562 # targets where the array type of the second argument of getgroups
563 # is int and the type of gid_t is not equivalent to int.
564 *-*-sunos* | *-*-ultrix*)
565 TARGET_GETGROUPS_T=int
568 TARGET_GETGROUPS_T=gid_t
572 AC_SUBST(TARGET_GETGROUPS_T)
574 gcc_AC_FUNC_VFPRINTF_DOPRNT
576 gcc_AC_FUNC_PRINTF_PTR
581 *** UWIN may not be used as a host platform because
582 *** linking with posix.dll is not allowed by the GNU GPL])
586 AC_FUNC_MMAP_ANYWHERE
589 # We will need to find libiberty.h and ansidecl.h
590 saved_CFLAGS="$CFLAGS"
591 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
592 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
593 strsignal putc_unlocked fputs_unlocked strstr environ errno \
594 malloc realloc calloc free basename getopt, , ,[
595 #include "ansidecl.h"
596 #include "system.h"])
598 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
599 #include "ansidecl.h"
601 #ifdef HAVE_SYS_RESOURCE_H
602 #include <sys/resource.h>
606 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
607 CFLAGS="$saved_CFLAGS"
609 # mkdir takes a single argument on some systems.
610 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
620 build_install_headers_dir=install-headers-tar
625 host_truncate_target=
628 # Decode the host machine, then the target machine.
629 # For the host machine, we save the xm_file variable as host_xm_file;
630 # then we decode the target machine and forget everything else
631 # that came from the host machine.
632 for machine in $build $host $target; do
633 . ${srcdir}/config.gcc
636 extra_objs="${host_extra_objs} ${extra_objs}"
638 # Default the target-machine variables that were not explicitly set.
639 if test x"$tm_file" = x
640 then tm_file=$cpu_type/$cpu_type.h; fi
642 if test x"$extra_headers" = x
643 then extra_headers=; fi
645 if test x$md_file = x
646 then md_file=$cpu_type/$cpu_type.md; fi
648 if test x$out_file = x
649 then out_file=$cpu_type/$cpu_type.c; fi
651 if test x"$tmake_file" = x
652 then tmake_file=$cpu_type/t-$cpu_type
655 if test x"$dwarf2" = xyes
656 then tm_file="$tm_file tm-dwarf2.h"
659 if test x$float_format = x
660 then float_format=i64
663 if test $float_format = none
664 then float_h_file=Makefile.in
665 else float_h_file=float-$float_format.h
668 # Handle cpp installation.
669 if test x$enable_cpp != xno
671 tmake_file="$tmake_file t-install-cpp"
674 # Say what files are being used for the output code and MD file.
675 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
676 echo "Using \`$srcdir/config/$md_file' as machine description file."
678 # If any of the xm_file variables contain nonexistent files, warn
679 # about them and drop them.
683 for x in $build_xm_file; do
684 if test -f $srcdir/config/$x
686 else AC_MSG_WARN($srcdir/config/$x does not exist.)
692 for x in $host_xm_file; do
693 if test -f $srcdir/config/$x
695 else AC_MSG_WARN($srcdir/config/$x does not exist.)
701 for x in $xm_file; do
702 if test -f $srcdir/config/$x
704 else AC_MSG_WARN($srcdir/config/$x does not exist.)
711 for f in $tm_file; do
714 if test $count = ax; then
715 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
717 echo "Using the following target machine macro files:"
718 for f in $tm_file; do
719 echo " $srcdir/config/$f"
724 for f in $host_xm_file; do
727 if test $count = a; then
729 elif test $count = ax; then
730 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
732 echo "Using the following host machine macro files:"
733 for f in $host_xm_file; do
734 echo " $srcdir/config/$f"
738 if test "$host_xm_file" != "$build_xm_file"; then
740 for f in $build_xm_file; do
743 if test $count = a; then
745 elif test $count = ax; then
746 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
748 echo "Using the following build machine macro files:"
749 for f in $build_xm_file; do
750 echo " $srcdir/config/$f"
755 if test x$thread_file = x; then
756 if test x$target_thread_file != x; then
757 thread_file=$target_thread_file
763 # auto-host.h is the file containing items generated by autoconf and is
764 # the first file included by config.h.
765 # If host=build, it is correct to have hconfig include auto-host.h
766 # as well. If host!=build, we are in error and need to do more
767 # work to find out the build config parameters.
768 if test x$host = x$build
770 build_auto=auto-host.h
772 # We create a subdir, then run autoconf in the subdir.
773 # To prevent recursion we set host and build for the new
774 # invocation of configure to the build for this invocation
781 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
782 *) realsrcdir=../${srcdir};;
784 CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
785 --target=$target --host=$build --build=$build
787 # We just finished tests for the build machine, so rename
788 # the file auto-build.h in the gcc directory.
789 mv auto-host.h ../auto-build.h
792 build_auto=auto-build.h
795 tm_file="${tm_file} defaults.h"
796 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
797 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
798 xm_file="ansidecl.h ${xm_file} ${tm_file}"
800 # Truncate the target if necessary
801 if test x$host_truncate_target != x; then
802 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
805 # Get the version trigger filename from the toplevel
806 if test "${with_gcc_version_trigger+set}" = set; then
807 gcc_version_trigger=$with_gcc_version_trigger
809 gcc_version_trigger=${srcdir}/version.c
812 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
813 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
815 # Compile in configure arguments.
816 if test -f configargs.h ; then
817 # Being re-configured.
818 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
819 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
821 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
823 cat > configargs.h <<EOF
824 /* Generated automatically. */
825 static const char configuration_arguments[] = "$gcc_config_arguments";
829 # Internationalization
831 VERSION="$gcc_version"
832 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
833 [Define to the name of the distribution.])
834 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
835 [Define to the version of the distribution.])
841 # Enable NLS support by default
843 [ --enable-nls use Native Language Support (default)],
846 # if cross compiling, disable NLS support.
847 # It's not worth the trouble, at least for now.
849 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
850 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
854 # if NLS is enabled, also enable check in po subdir
855 if test $enable_nls = yes; then
864 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
866 # Windows32 Registry support for specifying GCC installation paths.
867 AC_ARG_ENABLE(win32-registry,
868 [ --disable-win32-registry
869 Disable lookup of installation paths in the
870 Registry on Windows hosts.
871 --enable-win32-registry Enable registry lookup (default).
872 --enable-win32-registry=KEY
873 Use KEY instead of GCC version as the last portion
874 of the registry key.],,)
876 AC_MSG_CHECKING(whether windows registry support is requested)
877 if test x$enable_win32_registry != xno; then
878 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
879 [Define to 1 if installation paths should be looked up in Windows32
880 Registry. Ignored on non windows32 hosts.])
886 # Check if user specified a different registry key.
887 case x${enable_win32_registry} in
890 gcc_cv_win32_registry_key="$VERSION"
893 # no registry lookup.
894 gcc_cv_win32_registry_key=''
897 # user-specified key.
898 gcc_cv_win32_registry_key="$enable_win32_registry"
902 if test x$enable_win32_registry != xno; then
903 AC_MSG_CHECKING(registry key on windows hosts)
904 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
905 [Define to be the last portion of registry key on windows hosts.])
906 AC_MSG_RESULT($gcc_cv_win32_registry_key)
909 # Get an absolute path to the GCC top-level source directory
915 # Conditionalize the makefile for this host machine.
916 # Make-host contains the concatenation of all host makefile fragments
917 # [there can be more than one]. This file is built by configure.frag.
918 host_overrides=Make-host
920 for f in .. ${host_xmake_file}
922 if test -f ${srcdir}/config/$f
924 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
928 # Conditionalize the makefile for this target machine.
929 # Make-target contains the concatenation of all host makefile fragments
930 # [there can be more than one]. This file is built by configure.frag.
931 target_overrides=Make-target
933 for f in .. ${tmake_file}
935 if test -f ${srcdir}/config/$f
937 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
941 # If the host doesn't support symlinks, modify CC in
942 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
943 # Otherwise, we can use "CC=$(CC)".
945 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
947 cc_set_by_configure="\$(CC)"
948 quoted_cc_set_by_configure="\$(CC)"
949 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
952 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
954 symbolic_link="cp -p"
958 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
959 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
960 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
964 out_object_file=`basename $out_file .c`.o
967 for f in $tm_file; do
970 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
972 tm_file_list="${tm_file_list} $f" ;;
973 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
978 for f in $tm_p_file; do
979 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
983 for f in $host_xm_file; do
986 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
987 auto-host.h | defaults.h )
988 host_xm_file_list="${host_xm_file_list} $f" ;;
989 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
994 for f in $build_xm_file; do
997 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
998 auto-build.h | auto-host.h | defaults.h )
999 build_xm_file_list="${build_xm_file_list} $f" ;;
1000 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1004 # Define macro CROSS_COMPILE in compilation
1005 # if this is a cross-compiler.
1006 # Also use all.cross instead of all.internal
1007 # and add cross-make to Makefile.
1008 cross_overrides="/dev/null"
1009 if test x$host != x$target
1011 cross_defines="CROSS=-DCROSS_COMPILE"
1012 cross_overrides="${topdir}/cross-make"
1015 # If this is a cross-compiler that does not
1016 # have its own set of headers then define
1019 # If this is using newlib, then define inhibit_libc in
1020 # LIBGCC2_CFLAGS. This will cause __eprintf to be left out of
1021 # libgcc.a, but that's OK because newlib should have its own version of
1024 if [test x$host != x$target] && [test x$with_headers = x]; then
1025 inhibit_libc=-Dinhibit_libc
1027 if [test x$with_newlib = xyes]; then
1028 inhibit_libc=-Dinhibit_libc
1031 AC_SUBST(inhibit_libc)
1033 # When building gcc with a cross-compiler, we need to fix a few things.
1034 # This must come after cross-make as we want all.build to override
1036 build_overrides="/dev/null"
1037 if test x$build != x$host
1039 build_overrides="${topdir}/build-make"
1042 # Expand extra_headers to include complete path.
1043 # This substitutes for lots of t-* files.
1045 if test "x$extra_headers" = x
1048 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1049 for file in $extra_headers;
1051 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1055 if test x$use_collect2 = xno; then
1059 # Add a definition of USE_COLLECT2 if system wants one.
1060 # Also tell toplev.c what to do.
1061 # This substitutes for lots of t-* files.
1062 if test x$use_collect2 = x
1067 will_use_collect2="collect2"
1068 maybe_use_collect2="-DUSE_COLLECT2"
1071 # If we have gas in the build tree, make a link to it.
1072 if test -f ../gas/Makefile; then
1073 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1076 # If we have nm in the build tree, make a link to it.
1077 if test -f ../binutils/Makefile; then
1078 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1081 # If we have ld in the build tree, make a link to it.
1082 if test -f ../ld/Makefile; then
1083 # if test x$use_collect2 = x; then
1084 # rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1086 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1090 # Figure out what assembler we will be using.
1091 AC_MSG_CHECKING(what assembler to use)
1093 gcc_cv_gas_major_version=
1094 gcc_cv_gas_minor_version=
1095 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1096 if test -x "$DEFAULT_ASSEMBLER"; then
1097 gcc_cv_as="$DEFAULT_ASSEMBLER"
1098 elif test -x "$AS"; then
1100 elif test -x as$host_exeext; then
1101 # Build using assembler in the current directory.
1102 gcc_cv_as=./as$host_exeext
1103 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1104 # Single tree build which includes gas.
1105 for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1108 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1110 if test x$gcc_cv_gas_version != x; then
1115 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1116 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1120 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1122 # Search the same directories that the installed compiler will
1123 # search. Else we may find the wrong assembler and lose. If we
1124 # do not find a suitable assembler binary, then try the user's
1127 # Also note we have to check MD_EXEC_PREFIX before checking the
1128 # user's path. Unfortunately, there is no good way to get at the
1129 # value of MD_EXEC_PREFIX here. So we do a brute force search
1130 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1131 # to be fixed as part of the make/configure rewrite too.
1133 if test "x$exec_prefix" = xNONE; then
1134 if test "x$prefix" = xNONE; then
1135 test_prefix=/usr/local
1140 test_prefix=$exec_prefix
1143 # If the loop below does not find an assembler, then use whatever
1144 # one we can find in the users's path.
1146 gcc_cv_as=as$host_exeext
1148 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1149 $test_prefix/lib/gcc-lib/$target \
1150 /usr/lib/gcc/$target/$gcc_version \
1151 /usr/lib/gcc/$target \
1152 $test_prefix/$target/bin/$target/$gcc_version \
1153 $test_prefix/$target/bin \
1158 /bsd43/usr/lib/cmplrs/cc \
1159 /usr/cross64/usr/bin \
1160 /usr/lib/cmplrs/cc \
1161 /sysv/usr/lib/cmplrs/cc \
1162 /svr4/usr/lib/cmplrs/cc \
1165 for dir in $test_dirs; do
1166 if test -f $dir/as$host_exeext; then
1167 gcc_cv_as=$dir/as$host_exeext
1172 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1173 AC_MSG_RESULT("newly built gas")
1175 AC_MSG_RESULT($gcc_cv_as)
1178 # Figure out what nm we will be using.
1179 AC_MSG_CHECKING(what nm to use)
1180 if test -x nm$host_exeext; then
1181 gcc_cv_nm=./nm$host_exeext
1182 elif test x$host = x$target; then
1184 gcc_cv_nm=nm$host_exeext
1186 AC_MSG_RESULT($gcc_cv_nm)
1188 # Figure out what assembler alignment features are present.
1189 AC_MSG_CHECKING(assembler alignment features)
1190 gcc_cv_as_alignment_features=none
1191 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1192 # Gas version 2.6 and later support for .balign and .p2align.
1193 # bytes to skip when using .p2align.
1194 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1195 gcc_cv_as_alignment_features=".balign and .p2align"
1196 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1198 # Gas version 2.8 and later support specifying the maximum
1199 # bytes to skip when using .p2align.
1200 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1201 gcc_cv_as_alignment_features=".p2align including maximum skip"
1202 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1204 elif test x$gcc_cv_as != x; then
1205 # Check if we have .balign and .p2align
1206 echo ".balign 4" > conftest.s
1207 echo ".p2align 2" >> conftest.s
1208 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1209 gcc_cv_as_alignment_features=".balign and .p2align"
1210 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1212 rm -f conftest.s conftest.o
1213 # Check if specifying the maximum bytes to skip when
1214 # using .p2align is supported.
1215 echo ".p2align 4,,7" > conftest.s
1216 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1217 gcc_cv_as_alignment_features=".p2align including maximum skip"
1218 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1220 rm -f conftest.s conftest.o
1222 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1224 AC_MSG_CHECKING(assembler subsection support)
1225 gcc_cv_as_subsections=no
1226 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1227 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1228 gcc_cv_as_subsections="working .subsection -1"
1230 elif test x$gcc_cv_as != x; then
1231 # Check if we have .subsection
1232 echo ".subsection 1" > conftest.s
1233 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1234 gcc_cv_as_subsections=".subsection"
1235 if test x$gcc_cv_nm != x; then
1236 cat > conftest.s <<EOF
1237 conftest_label1: .word 0
1239 conftest_label2: .word 0
1242 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1243 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1244 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1245 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1248 gcc_cv_as_subsections="working .subsection -1"
1253 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1255 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1256 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1257 [Define if your assembler supports .subsection and .subsection -1 starts
1258 emitting at the beginning of your section.])
1260 AC_MSG_RESULT($gcc_cv_as_subsections)
1262 AC_MSG_CHECKING(assembler weak support)
1264 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1265 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1266 gcc_cv_as_weak="yes"
1268 elif test x$gcc_cv_as != x; then
1269 # Check if we have .weak
1270 echo " .weak foobar" > conftest.s
1271 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1272 gcc_cv_as_weak="yes"
1274 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1276 if test x"$gcc_cv_as_weak" = xyes; then
1277 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1279 AC_MSG_RESULT($gcc_cv_as_weak)
1281 AC_MSG_CHECKING(assembler hidden support)
1283 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1284 if test "$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
1285 gcc_cv_as_hidden="yes"
1287 elif test x$gcc_cv_as != x; then
1288 # Check if we have .hidden
1289 echo " .hidden foobar" > conftest.s
1290 echo "foobar:" >> conftest.s
1291 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1292 gcc_cv_as_hidden="yes"
1294 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1296 if test x"$gcc_cv_as_hidden" = xyes; then
1297 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1298 [Define if your assembler supports .hidden.])
1300 AC_MSG_RESULT($gcc_cv_as_hidden)
1302 AC_MSG_CHECKING(assembler leb128 support)
1304 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1305 if test "$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
1306 gcc_cv_as_leb128="yes"
1308 elif test x$gcc_cv_as != x; then
1309 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1310 cat > conftest.s <<EOF
1318 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1319 gcc_cv_as_leb128="yes"
1321 # GAS versions before 2.11 do not support uleb128,
1322 # despite appearing to.
1323 # ??? There exists an elf-specific test that will crash
1324 # the assembler. Perhaps it's better to figure out whether
1325 # arbitrary sections are supported and try the test.
1326 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1327 if echo "$as_ver" | grep GNU > /dev/null; then
1328 as_ver=`echo $as_ver | sed -e 's/.* //'`
1329 as_major=`echo $as_ver | sed 's/\..*//'`
1331 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1333 if test $as_major -eq 2 -a $as_minor -lt 11; then
1334 gcc_cv_as_leb128="no"
1338 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1340 if test x"$gcc_cv_as_leb128" = xyes; then
1341 AC_DEFINE(HAVE_AS_LEB128, 1,
1342 [Define if your assembler supports .uleb128.])
1344 AC_MSG_RESULT($gcc_cv_as_leb128)
1348 AC_CACHE_CHECK([assembler .register pseudo-op support],
1349 gcc_cv_as_register_pseudo_op, [
1350 gcc_cv_as_register_pseudo_op=unknown
1351 if test x$gcc_cv_as != x; then
1352 # Check if we have .register
1353 echo ".register %g2, #scratch" > conftest.s
1354 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1355 gcc_cv_as_register_pseudo_op=yes
1357 gcc_cv_as_register_pseudo_op=no
1359 rm -f conftest.s conftest.o
1362 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1363 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1364 [Define if your assembler supports .register.])
1367 AC_CACHE_CHECK([assembler supports -relax],
1368 gcc_cv_as_relax_opt, [
1369 gcc_cv_as_relax_opt=unknown
1370 if test x$gcc_cv_as != x; then
1371 # Check if gas supports -relax
1372 echo ".text" > conftest.s
1373 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1374 gcc_cv_as_relax_opt=yes
1376 gcc_cv_as_relax_opt=no
1378 rm -f conftest.s conftest.o
1381 if test "x$gcc_cv_as_relax_opt" = xyes; then
1382 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1383 [Define if your assembler supports -relax option.])
1388 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1389 gcc_cv_as_flags64, [
1390 if test -n "$gcc_cv_as"; then
1391 echo ".xword foo" > conftest.s
1392 gcc_cv_as_flags64=no
1393 for flag in "-xarch=v9" "-64 -Av9"; do
1394 if $gcc_cv_as $flag -o conftest.o conftest.s \
1395 > /dev/null 2>&1; then
1396 gcc_cv_as_flags64=$flag
1400 rm -f conftest.s conftest.o
1402 if test "$gas" = yes; then
1403 gcc_cv_as_flags64="-64 -Av9"
1405 gcc_cv_as_flags64="-xarch=v9"
1409 if test "x$gcc_cv_as_flags64" = xno; then
1411 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1412 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1415 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1416 [Define if the assembler supports 64bit sparc.])
1419 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1423 if test "x$gcc_cv_as_flags64" != xno; then
1424 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1425 gcc_cv_as_offsetable_lo10, [
1426 gcc_cv_as_offsetable_lo10=unknown
1427 if test "x$gcc_cv_as" != x; then
1428 # Check if assembler has offsetable %lo()
1429 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1430 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1431 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1433 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1434 > /dev/null 2>&1; then
1435 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1436 gcc_cv_as_offsetable_lo10=no
1438 gcc_cv_as_offsetable_lo10=yes
1441 gcc_cv_as_offsetable_lo10=no
1443 rm -f conftest.s conftest.o conftest1.s conftest1.o
1446 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1447 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1448 [Define if your assembler supports offsetable %lo().])
1456 AC_MSG_CHECKING(assembler instructions)
1457 gcc_cv_as_instructions=
1458 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1459 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1460 gcc_cv_as_instructions="filds fists"
1462 elif test x$gcc_cv_as != x; then
1463 set "filds fists" "filds mem; fists mem"
1466 echo "$2" > conftest.s
1467 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1468 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1472 rm -f conftest.s conftest.o
1474 if test x"$gcc_cv_as_instructions" != x; then
1475 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1477 AC_MSG_RESULT($gcc_cv_as_instructions)
1481 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1482 gcc_cv_as_dwarf2_debug_line=no
1483 # ??? Not all targets support dwarf2 debug_line, even within a version
1484 # of gas. Moreover, we need to emit a valid instruction to trigger any
1485 # info to the output file. So, as supported targets are added to gas 2.11,
1486 # add some instruction here to (also) show we expect this might work.
1487 # ??? Once 2.11 is released, probably need to add first known working
1488 # version to the per-target configury.
1490 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-*)
1497 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1499 if test "$gcc_cv_gas_major_version" -eq 2 \
1500 -a "$gcc_cv_gas_minor_version" -ge 11 \
1501 -o "$gcc_cv_gas_major_version" -gt 2 \
1502 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1503 && test x"$insn" != x ; then
1504 gcc_cv_as_dwarf2_debug_line="yes"
1506 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1507 echo ' .file 1 "conftest.s"' > conftest.s
1508 echo ' .loc 1 3 0' >> conftest.s
1509 echo " $insn" >> conftest.s
1510 # ??? This fails with non-gnu grep.
1511 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1512 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1513 # The .debug_line file table must be in the exact order that
1514 # we specified the files, since these indicies are also used
1515 # by DW_AT_decl_file. Approximate this test by testing if
1516 # the assembler bitches if the same index is assigned twice.
1517 echo ' .file 1 "foo.s"' > conftest.s
1518 echo ' .file 1 "bar.s"' >> conftest.s
1519 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
1521 gcc_cv_as_dwarf2_debug_line="no"
1523 gcc_cv_as_dwarf2_debug_line="yes"
1526 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1528 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1529 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1530 [Define if your assembler supports dwarf2 .file/.loc directives,
1531 and preserves file table indicies exactly as given.])
1533 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1535 # Figure out what language subdirectories are present.
1536 # Look if the user specified --enable-languages="..."; if not, use
1537 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1539 if test x"${enable_languages+set}" != xset; then
1540 if test x"${LANGUAGES+set}" = xset; then
1541 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1543 enable_languages=all
1546 if test x"${enable_languages}" = x; then
1547 AC_MSG_ERROR([--enable-languages needs at least one argument])
1551 # First scan to see if an enabled language requires some other language.
1552 # We assume that a given config-lang.in will list all the language
1553 # front ends it requires, even if some are required indirectly.
1554 for lang in ${srcdir}/*/config-lang.in ..
1559 # The odd quoting in the next line works around
1560 # an apparent bug in bash 1.12 on linux.
1562 ${srcdir}/[*]/config-lang.in)
1565 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1566 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
1567 for other in $this_lang_requires
1569 case ,${enable_languages}, in
1575 enable_languages="$enable_languages,$other"
1585 for lang in ${srcdir}/*/config-lang.in ..
1589 # The odd quoting in the next line works around
1590 # an apparent bug in bash 1.12 on linux.
1592 ${srcdir}/[*]/config-lang.in) ;;
1594 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1595 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
1596 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
1597 if test "x$lang_alias" = x
1599 echo "$lang doesn't set \$language." 1>&2
1602 case ${build_by_default},${enable_languages}, in
1603 *,$lang_alias,*) add_this_lang=yes ;;
1604 no,*) add_this_lang=no ;;
1605 *,all,*) add_this_lang=yes ;;
1606 *) add_this_lang=no ;;
1608 if test x"${add_this_lang}" = xyes; then
1610 ${srcdir}/ada/config-lang.in)
1611 if test x$have_gnat = xyes ; then
1612 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1616 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1625 # Make gthr-default.h if we have a thread file.
1627 if test $thread_file != single; then
1628 rm -f gthr-default.h
1629 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1630 gthread_flags=-DHAVE_GTHR_DEFAULT
1632 AC_SUBST(gthread_flags)
1634 # Find out what GC implementation we want, or may, use.
1636 [ --with-gc={simple,page} Choose the garbage collection mechanism to use
1637 with the compiler.],
1643 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1648 echo "Using $GGC for garbage collection."
1650 # Use the system's zlib library.
1652 zlibinc="-I\$(srcdir)/../zlib"
1653 AC_ARG_WITH(system-zlib,
1654 [ --with-system-zlib use installed libz],
1661 AC_DEFINE_UNQUOTED(ENABLE_STD_NAMESPACE, 1,
1662 [Define to 1 if you want to enable namespaces (-fhonor-std) by default.])
1664 dnl Very limited version of automake's enable-maintainer-mode
1666 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1667 dnl maintainer-mode is disabled by default
1668 AC_ARG_ENABLE(maintainer-mode,
1669 [ --enable-maintainer-mode enable make rules and dependencies not useful
1670 (and sometimes confusing) to the casual installer],
1671 maintainer_mode=$enableval,
1674 AC_MSG_RESULT($maintainer_mode)
1676 if test "$maintainer_mode" = "yes"; then
1683 # With Setjmp/Longjmp based exception handling.
1684 AC_ARG_ENABLE(sjlj-exceptions,
1685 [ --enable-sjlj-exceptions arrange to use setjmp/longjmp exception handling.],
1686 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1687 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1688 [Define 0/1 to force the choice for exception handling model.])])
1690 # Make empty files to contain the specs and options for each language.
1691 # Then add #include lines to for a compiler that has specs and/or options.
1696 rm -f specs.h options.h gencheck.h
1697 touch specs.h options.h gencheck.h
1698 for subdir in . $subdirs
1700 if test -f $srcdir/$subdir/lang-specs.h; then
1701 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1702 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1704 if test -f $srcdir/$subdir/lang-options.h; then
1705 echo "#include \"$subdir/lang-options.h\"" >>options.h
1706 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1708 if test -f $srcdir/$subdir/$subdir-tree.def; then
1709 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1710 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1714 # These (without "all_") are set in each config-lang.in.
1715 # `language' must be a single word so is spelled singularly.
1721 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1722 # List of language makefile fragments.
1727 # Add the language fragments.
1728 # Languages are added via two mechanisms. Some information must be
1729 # recorded in makefile variables, these are defined in config-lang.in.
1730 # We accumulate them and plug them into the main Makefile.
1731 # The other mechanism is a set of hooks for each of the main targets
1732 # like `clean', `install', etc.
1734 language_fragments="Make-lang"
1735 language_hooks="Make-hooks"
1737 for s in .. $subdirs
1749 . ${srcdir}/$s/config-lang.in
1750 if test "x$language" = x
1752 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1755 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1756 if test -f ${srcdir}/$s/Makefile.in
1757 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1759 all_languages="$all_languages $language"
1760 if test "x$boot_language" = xyes
1762 all_boot_languages="$all_boot_languages $language"
1764 all_compilers="$all_compilers $compilers"
1765 all_stagestuff="$all_stagestuff $stagestuff"
1766 all_diff_excludes="$all_diff_excludes $diff_excludes"
1767 all_headers="$all_headers $headers"
1768 all_outputs="$all_outputs $outputs"
1769 all_lib2funcs="$all_lib2funcs $lib2funcs"
1774 for language in .. $all_languages
1776 if test $language != ".."
1778 check_languages="$check_languages check-$language"
1782 # Since we can't use `::' targets, we link each language in
1783 # with a set of hooks, reached indirectly via lang.${target}.
1787 target_list="all.build all.cross start.encap rest.encap \
1789 install-normal install-common install-info install-man \
1791 mostlyclean clean distclean extraclean maintainer-clean \
1792 stage1 stage2 stage3 stage4"
1793 for t in $target_list
1796 for lang in .. $all_languages
1798 if test $lang != ".."; then
1802 echo "lang.$t: $x" >> Make-hooks
1807 echo "dir ." > .gdbinit
1808 echo "dir ${srcdir}" >> .gdbinit
1809 if test x$gdb_needs_out_file_path = xyes
1811 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1813 if test "x$subdirs" != x; then
1816 echo "dir ${srcdir}/$s" >> .gdbinit
1819 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
1821 # Define variables host_canonical and build_canonical
1822 # because some Cygnus local changes in the Makefile depend on them.
1823 build_canonical=${build}
1824 host_canonical=${host}
1826 if test "${host}" != "${target}" ; then
1827 target_subdir=${target_alias}/
1829 AC_SUBST(build_canonical)
1830 AC_SUBST(host_canonical)
1831 AC_SUBST(target_subdir)
1833 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1834 # absolute path for gcc_tooldir based on inserting the number of up-directory
1835 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1836 # $(libsubdir)/@(unlibsubdir) based path.
1837 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1838 # make and thus we'd get different behavior depending on where we built the
1840 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1841 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1843 changequote(<<, >>)dnl
1844 # An explanation of the sed strings:
1845 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
1846 # -e 's|/$||' match a trailing forward slash and eliminates it
1847 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
1848 # -e 's|/[^/]*|../|g' replaces each occurance of /<directory> with ../
1850 # (*) Note this pattern overwrites the first character of the string
1851 # with a forward slash if one is not already present. This is not a
1852 # problem because the exact names of the sub-directories concerned is
1853 # unimportant, just the number of them matters.
1855 # The practical upshot of these patterns is like this:
1857 # prefix exec_prefix result
1858 # ------ ----------- ------
1860 # /foo/ /foo/bar ../
1861 # /foo /foo/bar/ ../
1862 # /foo/ /foo/bar/ ../
1863 # /foo /foo/bar/ugg ../../
1866 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1867 changequote([, ])dnl
1869 AC_SUBST(gcc_tooldir)
1872 # Find a directory in which to install a shared libgcc.
1874 AC_ARG_ENABLE(version-specific-runtime-libs,
1875 [ --enable-version-specific-runtime-libs Specify that runtime libraries shou
1876 ld be installed in a compiler-specific directory ])
1878 AC_ARG_WITH(slibdir,
1879 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
1880 slibdir="$with_slibdir",
1881 if test "${enable_version_specific_runtime_libs+set}" = set; then
1882 slibdir='$(libsubdir)'
1883 elif test "$host" != "$target"; then
1884 slibdir='$(build_tooldir)/lib'
1890 # Nothing to do for FLOAT_H, float_format already handled.
1894 # Process the language and host/target makefile fragments.
1895 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1897 # Substitute configuration variables
1899 AC_SUBST(all_boot_languages)
1900 AC_SUBST(all_compilers)
1901 AC_SUBST(all_diff_excludes)
1902 AC_SUBST(all_headers)
1903 AC_SUBST(all_lang_makefiles)
1904 AC_SUBST(all_languages)
1905 AC_SUBST(all_lib2funcs)
1906 AC_SUBST(all_stagestuff)
1907 AC_SUBST(build_exeext)
1908 AC_SUBST(build_install_headers_dir)
1909 AC_SUBST(build_xm_file_list)
1910 AC_SUBST(build_xm_file)
1911 AC_SUBST(build_xm_defines)
1912 AC_SUBST(check_languages)
1913 AC_SUBST(cc_set_by_configure)
1914 AC_SUBST(quoted_cc_set_by_configure)
1915 AC_SUBST(cpp_install_dir)
1916 AC_SUBST(dep_host_xmake_file)
1917 AC_SUBST(dep_tmake_file)
1918 AC_SUBST(extra_c_flags)
1919 AC_SUBST(extra_headers_list)
1920 AC_SUBST(extra_objs)
1921 AC_SUBST(extra_parts)
1922 AC_SUBST(extra_passes)
1923 AC_SUBST(extra_programs)
1924 AC_SUBST(float_h_file)
1925 AC_SUBST(gcc_config_arguments)
1926 AC_SUBST(gcc_gxx_include_dir)
1927 AC_SUBST(libstdcxx_incdir)
1928 AC_SUBST(gcc_version)
1929 AC_SUBST(gcc_version_full)
1930 AC_SUBST(gcc_version_trigger)
1931 AC_SUBST(host_exeext)
1932 AC_SUBST(host_extra_gcc_objs)
1933 AC_SUBST(host_xm_file_list)
1934 AC_SUBST(host_xm_file)
1935 AC_SUBST(host_xm_defines)
1937 AC_SUBST(lang_options_files)
1938 AC_SUBST(lang_specs_files)
1939 AC_SUBST(lang_tree_files)
1940 AC_SUBST(local_prefix)
1941 AC_SUBST(maybe_use_collect2)
1943 AC_SUBST(objc_boehm_gc)
1945 AC_SUBST(out_object_file)
1946 AC_SUBST(stage_prefix_set_by_configure)
1947 AC_SUBST(symbolic_link)
1948 AC_SUBST(thread_file)
1949 AC_SUBST(tm_file_list)
1951 AC_SUBST(tm_p_file_list)
1954 AC_SUBST(xm_defines)
1955 AC_SUBST(will_use_collect2)
1956 AC_SUBST(c_target_objs)
1957 AC_SUBST(cxx_target_objs)
1958 AC_SUBST(target_cpu_default)
1960 AC_SUBST_FILE(target_overrides)
1961 AC_SUBST_FILE(host_overrides)
1962 AC_SUBST(cross_defines)
1963 AC_SUBST_FILE(cross_overrides)
1964 AC_SUBST_FILE(build_overrides)
1965 AC_SUBST_FILE(language_fragments)
1966 AC_SUBST_FILE(language_hooks)
1968 # Echo that links are built
1969 if test x$host = x$target
1977 if test x$host != x$build
1979 str3=" on a $build system"
1982 if test "x$str2" != x || test "x$str3" != x
1987 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
1989 if test "x$str2" != x || test "x$str3" != x
1991 echo " ${str2}${str3}." 1>&2
1994 # Truncate the target if necessary
1995 if test x$host_truncate_target != x; then
1996 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1999 # Configure the subdirectories
2000 # AC_CONFIG_SUBDIRS($subdirs)
2002 # Create the Makefile
2003 # and configure language subdirectories
2004 AC_OUTPUT($all_outputs,
2006 case x$CONFIG_HEADERS in
2007 xauto-host.h:config.in)
2010 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2011 # bootstrapping and the installation procedure can still use
2012 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2013 # FLAGS_TO_PASS has been modified to solve the problem there.
2014 # This is virtually a duplicate of what happens in configure.lang; we do
2015 # an extra check to make sure this only happens if ln -s can be used.
2016 if test "$symbolic_link" = "ln -s"; then
2017 for d in .. ${subdirs} ; do
2018 if test $d != ..; then
2021 for t in stage1 stage2 stage3 stage4 include
2024 $symbolic_link ../$t $t 2>/dev/null
2030 # Avoid having to add intl to our include paths.
2031 if test -f intl/libintl.h; then
2032 echo creating libintl.h
2033 echo '#include "intl/libintl.h"' >libintl.h
2040 target_alias='${target_alias}'
2042 subdirs='${subdirs}'
2043 symbolic_link='${symbolic_link}'
2044 program_transform_set='${program_transform_set}'
2045 program_transform_name='${program_transform_name}'
2046 dep_host_xmake_file='${dep_host_xmake_file}'
2047 host_xmake_file='${host_xmake_file}'
2048 dep_tmake_file='${dep_tmake_file}'
2049 tmake_file='${tmake_file}'
2050 thread_file='${thread_file}'
2051 gcc_config_arguments='${gcc_config_arguments}'
2052 gcc_version='${gcc_version}'
2053 gcc_version_full='${gcc_version_full}'
2054 gcc_version_trigger='${gcc_version_trigger}'
2055 local_prefix='${local_prefix}'
2056 build_install_headers_dir='${build_install_headers_dir}'
2057 build_exeext='${build_exeext}'
2058 host_exeext='${host_exeext}'
2059 out_file='${out_file}'
2060 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
2061 SET_MAKE='${SET_MAKE}'
2062 target_list='${target_list}'
2063 target_overrides='${target_overrides}'
2064 host_overrides='${host_overrides}'
2065 cross_defines='${cross_defines}'
2066 cross_overrides='${cross_overrides}'
2067 build_overrides='${build_overrides}'
2068 cpp_install_dir='${cpp_install_dir}'