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 $gcc_cv_header_inttypes_h = yes; then
540 AC_DEFINE(HAVE_INTTYPES_H, 1,
541 [Define if you have a working <inttypes.h> header file.])
544 dnl Disabled until we have a complete test for buggy enum bitfields.
545 dnl gcc_AC_C_ENUM_BF_UNSIGNED
547 AC_CHECK_FUNCS(strtoul bsearch popen times clock \
548 strchr strrchr kill getrlimit setrlimit atoll atoq \
549 sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
550 fputs_unlocked getrusage iconv nl_langinfo lstat)
552 AC_CHECK_TYPE(ssize_t, int)
554 # Try to determine the array type of the second argument of getgroups
555 # for the target system (int or gid_t).
557 if test "${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 clock, , ,[
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 gcc_AC_CHECK_DECLS(times, , ,[
607 #include "ansidecl.h"
609 #ifdef HAVE_SYS_TIMES_H
610 #include <sys/times.h>
614 # More time-related stuff.
615 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
617 #include "ansidecl.h"
619 #ifdef HAVE_SYS_TIMES_H
620 #include <sys/times.h>
622 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
623 if test $ac_cv_struct_tms = yes; then
624 AC_DEFINE(HAVE_STRUCT_TMS, 1,
625 [Define if <sys/times.h> defines struct tms.])
628 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
629 # revisit after autoconf 2.50.
630 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
632 #include "ansidecl.h"
634 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
635 if test $gcc_cv_type_clock_t = yes; then
636 AC_DEFINE(HAVE_CLOCK_T, 1,
637 [Define if <time.h> defines clock_t.])
640 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
641 CFLAGS="$saved_CFLAGS"
643 # mkdir takes a single argument on some systems.
644 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
654 build_install_headers_dir=install-headers-tar
659 host_truncate_target=
662 # Decode the host machine, then the target machine.
663 # For the host machine, we save the xm_file variable as host_xm_file;
664 # then we decode the target machine and forget everything else
665 # that came from the host machine.
666 for machine in $build $host $target; do
667 . ${srcdir}/config.gcc
670 extra_objs="${host_extra_objs} ${extra_objs}"
672 # Default the target-machine variables that were not explicitly set.
673 if test x"$tm_file" = x
674 then tm_file=$cpu_type/$cpu_type.h; fi
676 if test x"$extra_headers" = x
677 then extra_headers=; fi
679 if test x$md_file = x
680 then md_file=$cpu_type/$cpu_type.md; fi
682 if test x$out_file = x
683 then out_file=$cpu_type/$cpu_type.c; fi
685 if test x"$tmake_file" = x
686 then tmake_file=$cpu_type/t-$cpu_type
689 if test x"$dwarf2" = xyes
690 then tm_file="$tm_file tm-dwarf2.h"
693 if test x$float_format = x
694 then float_format=i64
697 if test $float_format = none
698 then float_h_file=Makefile.in
699 else float_h_file=float-$float_format.h
702 # Handle cpp installation.
703 if test x$enable_cpp != xno
705 tmake_file="$tmake_file t-install-cpp"
708 # Say what files are being used for the output code and MD file.
709 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
710 echo "Using \`$srcdir/config/$md_file' as machine description file."
712 # If any of the xm_file variables contain nonexistent files, warn
713 # about them and drop them.
717 for x in $build_xm_file; do
718 if test -f $srcdir/config/$x
720 else AC_MSG_WARN($srcdir/config/$x does not exist.)
726 for x in $host_xm_file; do
727 if test -f $srcdir/config/$x
729 else AC_MSG_WARN($srcdir/config/$x does not exist.)
735 for x in $xm_file; do
736 if test -f $srcdir/config/$x
738 else AC_MSG_WARN($srcdir/config/$x does not exist.)
745 for f in $tm_file; do
748 if test $count = ax; then
749 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
751 echo "Using the following target machine macro files:"
752 for f in $tm_file; do
753 echo " $srcdir/config/$f"
758 for f in $host_xm_file; do
761 if test $count = a; then
763 elif test $count = ax; then
764 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
766 echo "Using the following host machine macro files:"
767 for f in $host_xm_file; do
768 echo " $srcdir/config/$f"
772 if test "$host_xm_file" != "$build_xm_file"; then
774 for f in $build_xm_file; do
777 if test $count = a; then
779 elif test $count = ax; then
780 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
782 echo "Using the following build machine macro files:"
783 for f in $build_xm_file; do
784 echo " $srcdir/config/$f"
789 if test x$thread_file = x; then
790 if test x$target_thread_file != x; then
791 thread_file=$target_thread_file
797 # auto-host.h is the file containing items generated by autoconf and is
798 # the first file included by config.h.
799 # If host=build, it is correct to have hconfig include auto-host.h
800 # as well. If host!=build, we are in error and need to do more
801 # work to find out the build config parameters.
802 if test x$host = x$build
804 build_auto=auto-host.h
806 # We create a subdir, then run autoconf in the subdir.
807 # To prevent recursion we set host and build for the new
808 # invocation of configure to the build for this invocation
815 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
816 *) realsrcdir=../${srcdir};;
818 CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
819 --target=$target --host=$build --build=$build
821 # We just finished tests for the build machine, so rename
822 # the file auto-build.h in the gcc directory.
823 mv auto-host.h ../auto-build.h
826 build_auto=auto-build.h
829 tm_file="${tm_file} defaults.h"
830 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
831 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
832 xm_file="ansidecl.h ${xm_file} ${tm_file}"
834 # Truncate the target if necessary
835 if test x$host_truncate_target != x; then
836 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
839 # Get the version trigger filename from the toplevel
840 if test "${with_gcc_version_trigger+set}" = set; then
841 gcc_version_trigger=$with_gcc_version_trigger
843 gcc_version_trigger=${srcdir}/version.c
846 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
847 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
849 # Compile in configure arguments.
850 if test -f configargs.h ; then
851 # Being re-configured.
852 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
853 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
855 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
857 cat > configargs.h <<EOF
858 /* Generated automatically. */
859 static const char configuration_arguments[] = "$gcc_config_arguments";
860 static const char thread_model[] = "$thread_file";
864 # Internationalization
866 VERSION="$gcc_version"
867 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
868 [Define to the name of the distribution.])
869 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
870 [Define to the version of the distribution.])
876 # Enable NLS support by default
878 [ --enable-nls use Native Language Support (default)],
881 # if cross compiling, disable NLS support.
882 # It's not worth the trouble, at least for now.
884 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
885 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
889 # if NLS is enabled, also enable check in po subdir
890 if test $enable_nls = yes; then
899 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
901 # Windows32 Registry support for specifying GCC installation paths.
902 AC_ARG_ENABLE(win32-registry,
903 [ --disable-win32-registry
904 Disable lookup of installation paths in the
905 Registry on Windows hosts.
906 --enable-win32-registry Enable registry lookup (default).
907 --enable-win32-registry=KEY
908 Use KEY instead of GCC version as the last portion
909 of the registry key.],,)
911 AC_MSG_CHECKING(whether windows registry support is requested)
912 if test x$enable_win32_registry != xno; then
913 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
914 [Define to 1 if installation paths should be looked up in Windows32
915 Registry. Ignored on non windows32 hosts.])
921 # Check if user specified a different registry key.
922 case x${enable_win32_registry} in
925 gcc_cv_win32_registry_key="$VERSION"
928 # no registry lookup.
929 gcc_cv_win32_registry_key=''
932 # user-specified key.
933 gcc_cv_win32_registry_key="$enable_win32_registry"
937 if test x$enable_win32_registry != xno; then
938 AC_MSG_CHECKING(registry key on windows hosts)
939 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
940 [Define to be the last portion of registry key on windows hosts.])
941 AC_MSG_RESULT($gcc_cv_win32_registry_key)
944 # Get an absolute path to the GCC top-level source directory
950 # Conditionalize the makefile for this host machine.
951 # Make-host contains the concatenation of all host makefile fragments
952 # [there can be more than one]. This file is built by configure.frag.
953 host_overrides=Make-host
955 for f in .. ${host_xmake_file}
957 if test -f ${srcdir}/config/$f
959 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
963 # Conditionalize the makefile for this target machine.
964 # Make-target contains the concatenation of all host makefile fragments
965 # [there can be more than one]. This file is built by configure.frag.
966 target_overrides=Make-target
968 for f in .. ${tmake_file}
970 if test -f ${srcdir}/config/$f
972 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
976 # If the host doesn't support symlinks, modify CC in
977 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
978 # Otherwise, we can use "CC=$(CC)".
980 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
982 cc_set_by_configure="\$(CC)"
983 quoted_cc_set_by_configure="\$(CC)"
984 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
987 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
989 symbolic_link="cp -p"
993 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
994 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
995 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
999 out_object_file=`basename $out_file .c`.o
1002 for f in $tm_file; do
1005 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1007 tm_file_list="${tm_file_list} $f" ;;
1008 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1013 for f in $tm_p_file; do
1014 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1018 for f in $host_xm_file; do
1021 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1022 auto-host.h | defaults.h )
1023 host_xm_file_list="${host_xm_file_list} $f" ;;
1024 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1029 for f in $build_xm_file; do
1032 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1033 auto-build.h | auto-host.h | defaults.h )
1034 build_xm_file_list="${build_xm_file_list} $f" ;;
1035 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1039 # Define macro CROSS_COMPILE in compilation
1040 # if this is a cross-compiler.
1041 # Also use all.cross instead of all.internal
1042 # and add cross-make to Makefile.
1043 cross_overrides="/dev/null"
1044 if test x$host != x$target
1046 cross_defines="CROSS=-DCROSS_COMPILE"
1047 cross_overrides="${topdir}/cross-make"
1050 # If this is a cross-compiler that does not
1051 # have its own set of headers then define
1054 # If this is using newlib, then define inhibit_libc in
1055 # LIBGCC2_CFLAGS. This will cause __eprintf to be left out of
1056 # libgcc.a, but that's OK because newlib should have its own version of
1059 if [test x$host != x$target] && [test x$with_headers = x]; then
1060 inhibit_libc=-Dinhibit_libc
1062 if [test x$with_newlib = xyes]; then
1063 inhibit_libc=-Dinhibit_libc
1066 AC_SUBST(inhibit_libc)
1068 # When building gcc with a cross-compiler, we need to fix a few things.
1069 # This must come after cross-make as we want all.build to override
1071 build_overrides="/dev/null"
1072 if test x$build != x$host
1074 build_overrides="${topdir}/build-make"
1077 # Expand extra_headers to include complete path.
1078 # This substitutes for lots of t-* files.
1080 if test "x$extra_headers" = x
1083 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1084 for file in $extra_headers;
1086 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1090 if test x$use_collect2 = xno; then
1094 # Add a definition of USE_COLLECT2 if system wants one.
1095 # Also tell toplev.c what to do.
1096 # This substitutes for lots of t-* files.
1097 if test x$use_collect2 = x
1102 will_use_collect2="collect2"
1103 maybe_use_collect2="-DUSE_COLLECT2"
1106 # If we have gas in the build tree, make a link to it.
1107 if test -f ../gas/Makefile; then
1108 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1111 # If we have nm in the build tree, make a link to it.
1112 if test -f ../binutils/Makefile; then
1113 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1116 # If we have ld in the build tree, make a link to it.
1117 if test -f ../ld/Makefile; then
1118 # if test x$use_collect2 = x; then
1119 # rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1121 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1125 # Figure out what assembler we will be using.
1126 AC_MSG_CHECKING(what assembler to use)
1128 gcc_cv_gas_major_version=
1129 gcc_cv_gas_minor_version=
1130 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1131 if test -x "$DEFAULT_ASSEMBLER"; then
1132 gcc_cv_as="$DEFAULT_ASSEMBLER"
1133 elif test -x "$AS"; then
1135 elif test -x as$host_exeext; then
1136 # Build using assembler in the current directory.
1137 gcc_cv_as=./as$host_exeext
1138 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1139 # Single tree build which includes gas.
1140 for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1143 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1145 if test x$gcc_cv_gas_version != x; then
1150 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1151 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1155 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1157 # Search the same directories that the installed compiler will
1158 # search. Else we may find the wrong assembler and lose. If we
1159 # do not find a suitable assembler binary, then try the user's
1162 # Also note we have to check MD_EXEC_PREFIX before checking the
1163 # user's path. Unfortunately, there is no good way to get at the
1164 # value of MD_EXEC_PREFIX here. So we do a brute force search
1165 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1166 # to be fixed as part of the make/configure rewrite too.
1168 if test "x$exec_prefix" = xNONE; then
1169 if test "x$prefix" = xNONE; then
1170 test_prefix=/usr/local
1175 test_prefix=$exec_prefix
1178 # If the loop below does not find an assembler, then use whatever
1179 # one we can find in the users's path.
1181 gcc_cv_as=as$host_exeext
1183 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1184 $test_prefix/lib/gcc-lib/$target \
1185 /usr/lib/gcc/$target/$gcc_version \
1186 /usr/lib/gcc/$target \
1187 $test_prefix/$target/bin/$target/$gcc_version \
1188 $test_prefix/$target/bin \
1193 /bsd43/usr/lib/cmplrs/cc \
1194 /usr/cross64/usr/bin \
1195 /usr/lib/cmplrs/cc \
1196 /sysv/usr/lib/cmplrs/cc \
1197 /svr4/usr/lib/cmplrs/cc \
1200 for dir in $test_dirs; do
1201 if test -f $dir/as$host_exeext; then
1202 gcc_cv_as=$dir/as$host_exeext
1207 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1208 AC_MSG_RESULT("newly built gas")
1210 AC_MSG_RESULT($gcc_cv_as)
1213 # Figure out what nm we will be using.
1214 AC_MSG_CHECKING(what nm to use)
1215 if test -x nm$host_exeext; then
1216 gcc_cv_nm=./nm$host_exeext
1217 elif test x$host = x$target; then
1219 gcc_cv_nm=nm$host_exeext
1221 AC_MSG_RESULT($gcc_cv_nm)
1223 # Figure out what assembler alignment features are present.
1224 AC_MSG_CHECKING(assembler alignment features)
1225 gcc_cv_as_alignment_features=none
1226 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1227 # Gas version 2.6 and later support for .balign and .p2align.
1228 # bytes to skip when using .p2align.
1229 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1230 gcc_cv_as_alignment_features=".balign and .p2align"
1231 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1233 # Gas version 2.8 and later support specifying the maximum
1234 # bytes to skip when using .p2align.
1235 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1236 gcc_cv_as_alignment_features=".p2align including maximum skip"
1237 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1239 elif test x$gcc_cv_as != x; then
1240 # Check if we have .balign and .p2align
1241 echo ".balign 4" > conftest.s
1242 echo ".p2align 2" >> conftest.s
1243 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1244 gcc_cv_as_alignment_features=".balign and .p2align"
1245 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1247 rm -f conftest.s conftest.o
1248 # Check if specifying the maximum bytes to skip when
1249 # using .p2align is supported.
1250 echo ".p2align 4,,7" > conftest.s
1251 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1252 gcc_cv_as_alignment_features=".p2align including maximum skip"
1253 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1255 rm -f conftest.s conftest.o
1257 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1259 AC_MSG_CHECKING(assembler subsection support)
1260 gcc_cv_as_subsections=no
1261 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1262 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1263 gcc_cv_as_subsections="working .subsection -1"
1265 elif test x$gcc_cv_as != x; then
1266 # Check if we have .subsection
1267 echo ".subsection 1" > conftest.s
1268 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1269 gcc_cv_as_subsections=".subsection"
1270 if test x$gcc_cv_nm != x; then
1271 cat > conftest.s <<EOF
1272 conftest_label1: .word 0
1274 conftest_label2: .word 0
1277 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1278 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1279 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1280 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1283 gcc_cv_as_subsections="working .subsection -1"
1288 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1290 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1291 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1292 [Define if your assembler supports .subsection and .subsection -1 starts
1293 emitting at the beginning of your section.])
1295 AC_MSG_RESULT($gcc_cv_as_subsections)
1297 AC_MSG_CHECKING(assembler weak support)
1299 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1300 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1301 gcc_cv_as_weak="yes"
1303 elif test x$gcc_cv_as != x; then
1304 # Check if we have .weak
1305 echo " .weak foobar" > conftest.s
1306 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1307 gcc_cv_as_weak="yes"
1309 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1311 if test x"$gcc_cv_as_weak" = xyes; then
1312 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1314 AC_MSG_RESULT($gcc_cv_as_weak)
1316 AC_MSG_CHECKING(assembler hidden support)
1318 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1319 if test "$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
1320 gcc_cv_as_hidden="yes"
1322 elif test x$gcc_cv_as != x; then
1323 # Check if we have .hidden
1324 echo " .hidden foobar" > conftest.s
1325 echo "foobar:" >> conftest.s
1326 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1327 gcc_cv_as_hidden="yes"
1329 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1331 if test x"$gcc_cv_as_hidden" = xyes; then
1332 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1333 [Define if your assembler supports .hidden.])
1335 AC_MSG_RESULT($gcc_cv_as_hidden)
1337 AC_MSG_CHECKING(assembler leb128 support)
1339 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1340 if test "$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
1341 gcc_cv_as_leb128="yes"
1343 elif test x$gcc_cv_as != x; then
1344 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1345 cat > conftest.s <<EOF
1353 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1354 gcc_cv_as_leb128="yes"
1356 # GAS versions before 2.11 do not support uleb128,
1357 # despite appearing to.
1358 # ??? There exists an elf-specific test that will crash
1359 # the assembler. Perhaps it's better to figure out whether
1360 # arbitrary sections are supported and try the test.
1361 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1362 if echo "$as_ver" | grep GNU > /dev/null; then
1363 as_ver=`echo $as_ver | sed -e 's/.* //'`
1364 as_major=`echo $as_ver | sed 's/\..*//'`
1366 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1368 if test $as_major -eq 2 -a $as_minor -lt 11; then
1369 gcc_cv_as_leb128="no"
1373 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1375 if test x"$gcc_cv_as_leb128" = xyes; then
1376 AC_DEFINE(HAVE_AS_LEB128, 1,
1377 [Define if your assembler supports .uleb128.])
1379 AC_MSG_RESULT($gcc_cv_as_leb128)
1383 AC_CACHE_CHECK([assembler .register pseudo-op support],
1384 gcc_cv_as_register_pseudo_op, [
1385 gcc_cv_as_register_pseudo_op=unknown
1386 if test x$gcc_cv_as != x; then
1387 # Check if we have .register
1388 echo ".register %g2, #scratch" > conftest.s
1389 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1390 gcc_cv_as_register_pseudo_op=yes
1392 gcc_cv_as_register_pseudo_op=no
1394 rm -f conftest.s conftest.o
1397 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1398 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1399 [Define if your assembler supports .register.])
1402 AC_CACHE_CHECK([assembler supports -relax],
1403 gcc_cv_as_relax_opt, [
1404 gcc_cv_as_relax_opt=unknown
1405 if test x$gcc_cv_as != x; then
1406 # Check if gas supports -relax
1407 echo ".text" > conftest.s
1408 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1409 gcc_cv_as_relax_opt=yes
1411 gcc_cv_as_relax_opt=no
1413 rm -f conftest.s conftest.o
1416 if test "x$gcc_cv_as_relax_opt" = xyes; then
1417 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1418 [Define if your assembler supports -relax option.])
1423 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1424 gcc_cv_as_flags64, [
1425 if test -n "$gcc_cv_as"; then
1426 echo ".xword foo" > conftest.s
1427 gcc_cv_as_flags64=no
1428 for flag in "-xarch=v9" "-64 -Av9"; do
1429 if $gcc_cv_as $flag -o conftest.o conftest.s \
1430 > /dev/null 2>&1; then
1431 gcc_cv_as_flags64=$flag
1435 rm -f conftest.s conftest.o
1437 if test "$gas" = yes; then
1438 gcc_cv_as_flags64="-64 -Av9"
1440 gcc_cv_as_flags64="-xarch=v9"
1444 if test "x$gcc_cv_as_flags64" = xno; then
1446 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1447 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1450 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1451 [Define if the assembler supports 64bit sparc.])
1454 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1458 if test "x$gcc_cv_as_flags64" != xno; then
1459 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1460 gcc_cv_as_offsetable_lo10, [
1461 gcc_cv_as_offsetable_lo10=unknown
1462 if test "x$gcc_cv_as" != x; then
1463 # Check if assembler has offsetable %lo()
1464 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1465 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1466 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1468 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1469 > /dev/null 2>&1; then
1470 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1471 gcc_cv_as_offsetable_lo10=no
1473 gcc_cv_as_offsetable_lo10=yes
1476 gcc_cv_as_offsetable_lo10=no
1478 rm -f conftest.s conftest.o conftest1.s conftest1.o
1481 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1482 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1483 [Define if your assembler supports offsetable %lo().])
1491 AC_MSG_CHECKING(assembler instructions)
1492 gcc_cv_as_instructions=
1493 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1494 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1495 gcc_cv_as_instructions="filds fists"
1497 elif test x$gcc_cv_as != x; then
1498 set "filds fists" "filds mem; fists mem"
1501 echo "$2" > conftest.s
1502 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1503 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1507 rm -f conftest.s conftest.o
1509 if test x"$gcc_cv_as_instructions" != x; then
1510 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1512 AC_MSG_RESULT($gcc_cv_as_instructions)
1516 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1517 gcc_cv_as_dwarf2_debug_line=no
1518 # ??? Not all targets support dwarf2 debug_line, even within a version
1519 # of gas. Moreover, we need to emit a valid instruction to trigger any
1520 # info to the output file. So, as supported targets are added to gas 2.11,
1521 # add some instruction here to (also) show we expect this might work.
1522 # ??? Once 2.11 is released, probably need to add first known working
1523 # version to the per-target configury.
1525 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-*)
1532 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1534 if test "$gcc_cv_gas_major_version" -eq 2 \
1535 -a "$gcc_cv_gas_minor_version" -ge 11 \
1536 -o "$gcc_cv_gas_major_version" -gt 2 \
1537 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1538 && test x"$insn" != x ; then
1539 gcc_cv_as_dwarf2_debug_line="yes"
1541 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1542 echo ' .file 1 "conftest.s"' > conftest.s
1543 echo ' .loc 1 3 0' >> conftest.s
1544 echo " $insn" >> conftest.s
1545 # ??? This fails with non-gnu grep.
1546 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1547 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1548 # The .debug_line file table must be in the exact order that
1549 # we specified the files, since these indicies are also used
1550 # by DW_AT_decl_file. Approximate this test by testing if
1551 # the assembler bitches if the same index is assigned twice.
1552 echo ' .file 1 "foo.s"' > conftest.s
1553 echo ' .file 1 "bar.s"' >> conftest.s
1554 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
1556 gcc_cv_as_dwarf2_debug_line="no"
1558 gcc_cv_as_dwarf2_debug_line="yes"
1561 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1563 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1564 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1565 [Define if your assembler supports dwarf2 .file/.loc directives,
1566 and preserves file table indicies exactly as given.])
1568 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1570 # Figure out what language subdirectories are present.
1571 # Look if the user specified --enable-languages="..."; if not, use
1572 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1574 if test x"${enable_languages+set}" != xset; then
1575 if test x"${LANGUAGES+set}" = xset; then
1576 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1578 enable_languages=all
1581 if test x"${enable_languages}" = x; then
1582 AC_MSG_ERROR([--enable-languages needs at least one argument])
1586 # First scan to see if an enabled language requires some other language.
1587 # We assume that a given config-lang.in will list all the language
1588 # front ends it requires, even if some are required indirectly.
1589 for lang in ${srcdir}/*/config-lang.in ..
1594 # The odd quoting in the next line works around
1595 # an apparent bug in bash 1.12 on linux.
1597 ${srcdir}/[*]/config-lang.in)
1600 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1601 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
1602 for other in $this_lang_requires
1604 case ,${enable_languages}, in
1610 enable_languages="$enable_languages,$other"
1620 for lang in ${srcdir}/*/config-lang.in ..
1624 # The odd quoting in the next line works around
1625 # an apparent bug in bash 1.12 on linux.
1627 ${srcdir}/[*]/config-lang.in) ;;
1629 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1630 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
1631 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
1632 if test "x$lang_alias" = x
1634 echo "$lang doesn't set \$language." 1>&2
1637 case ${build_by_default},${enable_languages}, in
1638 *,$lang_alias,*) add_this_lang=yes ;;
1639 no,*) add_this_lang=no ;;
1640 *,all,*) add_this_lang=yes ;;
1641 *) add_this_lang=no ;;
1643 if test x"${add_this_lang}" = xyes; then
1645 ${srcdir}/ada/config-lang.in)
1646 if test x$have_gnat = xyes ; then
1647 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1651 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1660 # Make gthr-default.h if we have a thread file.
1662 if test $thread_file != single; then
1663 rm -f gthr-default.h
1664 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1665 gthread_flags=-DHAVE_GTHR_DEFAULT
1667 AC_SUBST(gthread_flags)
1669 # Find out what GC implementation we want, or may, use.
1671 [ --with-gc={simple,page} Choose the garbage collection mechanism to use
1672 with the compiler.],
1678 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1683 echo "Using $GGC for garbage collection."
1685 # Use the system's zlib library.
1687 zlibinc="-I\$(srcdir)/../zlib"
1688 AC_ARG_WITH(system-zlib,
1689 [ --with-system-zlib use installed libz],
1696 dnl Very limited version of automake's enable-maintainer-mode
1698 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1699 dnl maintainer-mode is disabled by default
1700 AC_ARG_ENABLE(maintainer-mode,
1701 [ --enable-maintainer-mode enable make rules and dependencies not useful
1702 (and sometimes confusing) to the casual installer],
1703 maintainer_mode=$enableval,
1706 AC_MSG_RESULT($maintainer_mode)
1708 if test "$maintainer_mode" = "yes"; then
1715 # With Setjmp/Longjmp based exception handling.
1716 AC_ARG_ENABLE(sjlj-exceptions,
1717 [ --enable-sjlj-exceptions arrange to use setjmp/longjmp exception handling.],
1718 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1719 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1720 [Define 0/1 to force the choice for exception handling model.])])
1722 # Make empty files to contain the specs and options for each language.
1723 # Then add #include lines to for a compiler that has specs and/or options.
1728 rm -f specs.h options.h gencheck.h
1729 touch specs.h options.h gencheck.h
1730 for subdir in . $subdirs
1732 if test -f $srcdir/$subdir/lang-specs.h; then
1733 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1734 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1736 if test -f $srcdir/$subdir/lang-options.h; then
1737 echo "#include \"$subdir/lang-options.h\"" >>options.h
1738 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1740 if test -f $srcdir/$subdir/$subdir-tree.def; then
1741 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1742 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1746 # These (without "all_") are set in each config-lang.in.
1747 # `language' must be a single word so is spelled singularly.
1753 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1754 # List of language makefile fragments.
1759 # Add the language fragments.
1760 # Languages are added via two mechanisms. Some information must be
1761 # recorded in makefile variables, these are defined in config-lang.in.
1762 # We accumulate them and plug them into the main Makefile.
1763 # The other mechanism is a set of hooks for each of the main targets
1764 # like `clean', `install', etc.
1766 language_fragments="Make-lang"
1767 language_hooks="Make-hooks"
1769 for s in .. $subdirs
1781 . ${srcdir}/$s/config-lang.in
1782 if test "x$language" = x
1784 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1787 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1788 if test -f ${srcdir}/$s/Makefile.in
1789 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1791 all_languages="$all_languages $language"
1792 if test "x$boot_language" = xyes
1794 all_boot_languages="$all_boot_languages $language"
1796 all_compilers="$all_compilers $compilers"
1797 all_stagestuff="$all_stagestuff $stagestuff"
1798 all_diff_excludes="$all_diff_excludes $diff_excludes"
1799 all_headers="$all_headers $headers"
1800 all_outputs="$all_outputs $outputs"
1801 all_lib2funcs="$all_lib2funcs $lib2funcs"
1806 for language in .. $all_languages
1808 if test $language != ".."
1810 check_languages="$check_languages check-$language"
1814 # Since we can't use `::' targets, we link each language in
1815 # with a set of hooks, reached indirectly via lang.${target}.
1819 target_list="all.build all.cross start.encap rest.encap \
1821 install-normal install-common install-info install-man \
1823 mostlyclean clean distclean extraclean maintainer-clean \
1824 stage1 stage2 stage3 stage4"
1825 for t in $target_list
1828 for lang in .. $all_languages
1830 if test $lang != ".."; then
1834 echo "lang.$t: $x" >> Make-hooks
1839 echo "dir ." > .gdbinit
1840 echo "dir ${srcdir}" >> .gdbinit
1841 if test x$gdb_needs_out_file_path = xyes
1843 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1845 if test "x$subdirs" != x; then
1848 echo "dir ${srcdir}/$s" >> .gdbinit
1851 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
1853 # Define variables host_canonical and build_canonical
1854 # because some Cygnus local changes in the Makefile depend on them.
1855 build_canonical=${build}
1856 host_canonical=${host}
1858 if test "${host}" != "${target}" ; then
1859 target_subdir=${target_alias}/
1861 AC_SUBST(build_canonical)
1862 AC_SUBST(host_canonical)
1863 AC_SUBST(target_subdir)
1865 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1866 # absolute path for gcc_tooldir based on inserting the number of up-directory
1867 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1868 # $(libsubdir)/@(unlibsubdir) based path.
1869 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1870 # make and thus we'd get different behavior depending on where we built the
1872 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1873 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1875 changequote(<<, >>)dnl
1876 # An explanation of the sed strings:
1877 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
1878 # -e 's|/$||' match a trailing forward slash and eliminates it
1879 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
1880 # -e 's|/[^/]*|../|g' replaces each occurance of /<directory> with ../
1882 # (*) Note this pattern overwrites the first character of the string
1883 # with a forward slash if one is not already present. This is not a
1884 # problem because the exact names of the sub-directories concerned is
1885 # unimportant, just the number of them matters.
1887 # The practical upshot of these patterns is like this:
1889 # prefix exec_prefix result
1890 # ------ ----------- ------
1892 # /foo/ /foo/bar ../
1893 # /foo /foo/bar/ ../
1894 # /foo/ /foo/bar/ ../
1895 # /foo /foo/bar/ugg ../../
1898 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1899 changequote([, ])dnl
1901 AC_SUBST(gcc_tooldir)
1904 # Find a directory in which to install a shared libgcc.
1906 AC_ARG_ENABLE(version-specific-runtime-libs,
1907 [ --enable-version-specific-runtime-libs Specify that runtime libraries shou
1908 ld be installed in a compiler-specific directory ])
1910 AC_ARG_WITH(slibdir,
1911 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
1912 slibdir="$with_slibdir",
1913 if test "${enable_version_specific_runtime_libs+set}" = set; then
1914 slibdir='$(libsubdir)'
1915 elif test "$host" != "$target"; then
1916 slibdir='$(build_tooldir)/lib'
1922 # Nothing to do for FLOAT_H, float_format already handled.
1926 # Process the language and host/target makefile fragments.
1927 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1929 # Substitute configuration variables
1931 AC_SUBST(all_boot_languages)
1932 AC_SUBST(all_compilers)
1933 AC_SUBST(all_diff_excludes)
1934 AC_SUBST(all_headers)
1935 AC_SUBST(all_lang_makefiles)
1936 AC_SUBST(all_languages)
1937 AC_SUBST(all_lib2funcs)
1938 AC_SUBST(all_stagestuff)
1939 AC_SUBST(build_exeext)
1940 AC_SUBST(build_install_headers_dir)
1941 AC_SUBST(build_xm_file_list)
1942 AC_SUBST(build_xm_file)
1943 AC_SUBST(build_xm_defines)
1944 AC_SUBST(check_languages)
1945 AC_SUBST(cc_set_by_configure)
1946 AC_SUBST(quoted_cc_set_by_configure)
1947 AC_SUBST(cpp_install_dir)
1948 AC_SUBST(dep_host_xmake_file)
1949 AC_SUBST(dep_tmake_file)
1950 AC_SUBST(extra_c_flags)
1951 AC_SUBST(extra_headers_list)
1952 AC_SUBST(extra_objs)
1953 AC_SUBST(extra_parts)
1954 AC_SUBST(extra_passes)
1955 AC_SUBST(extra_programs)
1956 AC_SUBST(float_h_file)
1957 AC_SUBST(gcc_config_arguments)
1958 AC_SUBST(gcc_gxx_include_dir)
1959 AC_SUBST(libstdcxx_incdir)
1960 AC_SUBST(gcc_version)
1961 AC_SUBST(gcc_version_full)
1962 AC_SUBST(gcc_version_trigger)
1963 AC_SUBST(host_exeext)
1964 AC_SUBST(host_extra_gcc_objs)
1965 AC_SUBST(host_xm_file_list)
1966 AC_SUBST(host_xm_file)
1967 AC_SUBST(host_xm_defines)
1969 AC_SUBST(lang_options_files)
1970 AC_SUBST(lang_specs_files)
1971 AC_SUBST(lang_tree_files)
1972 AC_SUBST(local_prefix)
1973 AC_SUBST(maybe_use_collect2)
1975 AC_SUBST(objc_boehm_gc)
1977 AC_SUBST(out_object_file)
1978 AC_SUBST(stage_prefix_set_by_configure)
1979 AC_SUBST(symbolic_link)
1980 AC_SUBST(thread_file)
1981 AC_SUBST(tm_file_list)
1983 AC_SUBST(tm_p_file_list)
1986 AC_SUBST(xm_defines)
1987 AC_SUBST(will_use_collect2)
1988 AC_SUBST(c_target_objs)
1989 AC_SUBST(cxx_target_objs)
1990 AC_SUBST(target_cpu_default)
1992 AC_SUBST_FILE(target_overrides)
1993 AC_SUBST_FILE(host_overrides)
1994 AC_SUBST(cross_defines)
1995 AC_SUBST_FILE(cross_overrides)
1996 AC_SUBST_FILE(build_overrides)
1997 AC_SUBST_FILE(language_fragments)
1998 AC_SUBST_FILE(language_hooks)
2000 # Echo that links are built
2001 if test x$host = x$target
2009 if test x$host != x$build
2011 str3=" on a $build system"
2014 if test "x$str2" != x || test "x$str3" != x
2019 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2021 if test "x$str2" != x || test "x$str3" != x
2023 echo " ${str2}${str3}." 1>&2
2026 # Truncate the target if necessary
2027 if test x$host_truncate_target != x; then
2028 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2031 # Configure the subdirectories
2032 # AC_CONFIG_SUBDIRS($subdirs)
2034 # Create the Makefile
2035 # and configure language subdirectories
2036 AC_OUTPUT($all_outputs,
2038 case x$CONFIG_HEADERS in
2039 xauto-host.h:config.in)
2042 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2043 # bootstrapping and the installation procedure can still use
2044 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2045 # FLAGS_TO_PASS has been modified to solve the problem there.
2046 # This is virtually a duplicate of what happens in configure.lang; we do
2047 # an extra check to make sure this only happens if ln -s can be used.
2048 if test "$symbolic_link" = "ln -s"; then
2049 for d in .. ${subdirs} ; do
2050 if test $d != ..; then
2053 for t in stage1 stage2 stage3 stage4 include
2056 $symbolic_link ../$t $t 2>/dev/null
2062 # Avoid having to add intl to our include paths.
2063 if test -f intl/libintl.h; then
2064 echo creating libintl.h
2065 echo '#include "intl/libintl.h"' >libintl.h
2072 target_alias='${target_alias}'
2074 subdirs='${subdirs}'
2075 symbolic_link='${symbolic_link}'
2076 program_transform_set='${program_transform_set}'
2077 program_transform_name='${program_transform_name}'
2078 dep_host_xmake_file='${dep_host_xmake_file}'
2079 host_xmake_file='${host_xmake_file}'
2080 dep_tmake_file='${dep_tmake_file}'
2081 tmake_file='${tmake_file}'
2082 thread_file='${thread_file}'
2083 gcc_config_arguments='${gcc_config_arguments}'
2084 gcc_version='${gcc_version}'
2085 gcc_version_full='${gcc_version_full}'
2086 gcc_version_trigger='${gcc_version_trigger}'
2087 local_prefix='${local_prefix}'
2088 build_install_headers_dir='${build_install_headers_dir}'
2089 build_exeext='${build_exeext}'
2090 host_exeext='${host_exeext}'
2091 out_file='${out_file}'
2092 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
2093 SET_MAKE='${SET_MAKE}'
2094 target_list='${target_list}'
2095 target_overrides='${target_overrides}'
2096 host_overrides='${host_overrides}'
2097 cross_defines='${cross_defines}'
2098 cross_overrides='${cross_overrides}'
2099 build_overrides='${build_overrides}'
2100 cpp_install_dir='${cpp_install_dir}'