2 # Process this file with autoconf to generate a configuration script.
4 # Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
6 #This file is part of GCC.
8 #GCC is free software; you can redistribute it and/or modify it under
9 #the terms of the GNU General Public License as published by the Free
10 #Software Foundation; either version 2, or (at your option) any later
13 #GCC is distributed in the hope that it will be useful, but WITHOUT
14 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 #You should have received a copy of the GNU General Public License
19 #along with GCC; see the file COPYING. If not, write to the Free
20 #Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 # Initialization and defaults
26 AC_CONFIG_HEADER(auto-host.h:config.in)
33 # Check for bogus environment variables.
34 # Test if LIBRARY_PATH contains the notation for the current directory
35 # since this would lead to problems installing/building glibc.
36 # LIBRARY_PATH contains the current directory if one of the following
38 # - one of the terminals (":" and ";") is the first or last sign
39 # - two terminals occur directly after each other
40 # - the path contains an element with a dot in it
41 AC_MSG_CHECKING(LIBRARY_PATH variable)
43 case ${LIBRARY_PATH} in
44 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
45 library_path_setting="contains current directory"
48 library_path_setting="ok"
52 AC_MSG_RESULT($library_path_setting)
53 if test "$library_path_setting" != "ok"; then
55 *** LIBRARY_PATH shouldn't contain the current directory when
56 *** building gcc. Please change the environment variable
57 *** and run configure again.])
60 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
61 # since this would lead to problems installing/building glibc.
62 # GCC_EXEC_PREFIX contains the current directory if one of the following
64 # - one of the terminals (":" and ";") is the first or last sign
65 # - two terminals occur directly after each other
66 # - the path contains an element with a dot in it
67 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
69 case ${GCC_EXEC_PREFIX} in
70 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
71 gcc_exec_prefix_setting="contains current directory"
74 gcc_exec_prefix_setting="ok"
78 AC_MSG_RESULT($gcc_exec_prefix_setting)
79 if test "$gcc_exec_prefix_setting" != "ok"; then
81 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
82 *** building gcc. Please change the environment variable
83 *** and run configure again.])
86 # Check for additional parameters
90 [ --with-gnu-ld arrange to work with GNU ld.],
91 gnu_ld_flag="$with_gnu_ld",
96 [ --with-ld arrange to use the specified ld (full pathname)],
97 DEFAULT_LINKER="$with_ld")
98 if test x"${DEFAULT_LINKER+set}" = x"set"; then
99 if test ! -x "$DEFAULT_LINKER"; then
100 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
101 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
104 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
105 [Define to enable the use of a default linker.])
110 [ --with-gnu-as arrange to work with GNU as],
111 gas_flag="$with_gnu_as",
115 [ --with-as arrange to use the specified as (full pathname)],
116 DEFAULT_ASSEMBLER="$with_as")
117 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
118 if test ! -x "$DEFAULT_ASSEMBLER"; then
119 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
120 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
123 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
124 [Define to enable the use of a default assembler.])
129 [ --with-stabs arrange to use stabs instead of host debug format],
135 [ --with-elf arrange to use ELF instead of host debug format],
139 # Specify the local prefix
141 AC_ARG_WITH(local-prefix,
142 [ --with-local-prefix=DIR specifies directory to put local include],
143 [case "${withval}" in
144 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
146 *) local_prefix=$with_local_prefix ;;
149 # Default local prefix if it is empty
150 if test x$local_prefix = x; then
151 local_prefix=/usr/local
154 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
155 # passed in by the toplevel make and thus we'd get different behavior
156 # depending on where we built the sources.
158 # Specify the g++ header file directory
159 AC_ARG_WITH(gxx-include-dir,
160 [ --with-gxx-include-dir=DIR
161 specifies directory to put g++ header files],
162 [case "${withval}" in
163 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
165 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
168 if test x${gcc_gxx_include_dir} = x; then
169 if test x${enable_version_specific_runtime_libs} = xyes; then
170 gcc_gxx_include_dir='${libsubdir}/include/c++'
172 topsrcdir=${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,rtlflag,gc,gcac;
191 default is misc,tree,gc,rtlflag],
197 ac_gc_always_collect=
198 case "${enableval}" in
199 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
200 ac_rtlflag_checking=1 ;;
202 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
203 set fnord $enableval; shift
208 misc) ac_checking=1 ;;
209 tree) ac_tree_checking=1 ;;
210 rtlflag) ac_rtlflag_checking=1 ;;
211 rtl) ac_rtl_checking=1 ;;
212 gc) ac_gc_checking=1 ;;
213 gcac) ac_gc_always_collect=1 ;;
214 *) AC_MSG_ERROR(unknown check category $check) ;;
220 # Enable some checks by default for development versions of GCC
221 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
222 if test x$ac_checking != x ; then
223 AC_DEFINE(ENABLE_CHECKING, 1,
224 [Define if you want more run-time sanity checks. This one gets a grab
225 bag of miscellaneous but relatively cheap checks.])
227 if test x$ac_tree_checking != x ; then
228 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
229 [Define if you want all operations on trees (the basic data
230 structure of the front ends) to be checked for dynamic type safety
231 at runtime. This is moderately expensive.])
233 if test x$ac_rtl_checking != x ; then
234 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
235 [Define if you want all operations on RTL (the basic data structure
236 of the optimizer and back end) to be checked for dynamic type safety
237 at runtime. This is quite expensive.])
239 if test x$ac_rtlflag_checking != x ; then
240 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
241 [Define if you want RTL flag accesses to be checked against the RTL
242 codes that are supported for each access macro. This is relatively
245 if test x$ac_gc_checking != x ; then
246 AC_DEFINE(ENABLE_GC_CHECKING, 1,
247 [Define if you want the garbage collector to do object poisoning and
248 other memory allocation checks. This is quite expensive.])
250 if test x$ac_gc_always_collect != x ; then
251 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
252 [Define if you want the garbage collector to operate in maximally
253 paranoid mode, validating the entire heap and collecting garbage at
254 every opportunity. This is extremely expensive.])
257 AC_ARG_WITH(cpp_install_dir,
258 [ --with-cpp-install-dir=DIR
259 install the user visible C preprocessor in DIR
260 (relative to PREFIX) as well as PREFIX/bin],
261 [if test x$withval = xyes; then
262 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
263 elif test x$withval != xno; then
264 cpp_install_dir=$withval
267 # Enable __cxa_atexit for C++.
268 AC_ARG_ENABLE(__cxa_atexit,
269 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
271 if test x$enable___cxa_atexit = xyes; then
272 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
273 [Define if you want to use __cxa_atexit, rather than atexit, to
274 register C++ destructors for local statics and global objects.
275 This is essential for fully standards-compliant handling of
276 destructors, but requires __cxa_atexit in libc.])
279 # Enable Multibyte Characters for C/C++
280 AC_ARG_ENABLE(c-mbchar,
281 [ --enable-c-mbchar enable multibyte characters for C and C++],
282 if test x$enable_c_mbchar != xno; then
283 AC_DEFINE(MULTIBYTE_CHARS, 1,
284 [Define if you want the C and C++ compilers to support multibyte
285 character sets for source code.])
289 # Pass with no value to take the default
290 # Pass with a value to specify a thread package
291 AC_ARG_ENABLE(threads,
292 [ --enable-threads enable thread usage for target GCC
293 --enable-threads=LIB use LIB thread package for target GCC],,
296 enable_threads_flag=$enable_threads
297 # Check if a valid thread package
298 case x${enable_threads_flag} in
301 target_thread_file='single'
305 target_thread_file=''
307 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
308 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
309 target_thread_file=$enable_threads_flag
312 echo "$enable_threads is an unknown thread package" 1>&2
317 AC_ARG_ENABLE(objc-gc,
318 [ --enable-objc-gc enable the use of Boehm's garbage collector with
319 the GNU Objective-C runtime],
320 if test x$enable_objc_gc = xno; then
328 [ --with-dwarf2 force the default debug format to be DWARF 2],
329 dwarf2="$with_dwarf2",
332 AC_ARG_ENABLE(shared,
333 [ --disable-shared don't provide a shared libgcc],
335 case $enable_shared in
339 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
340 for pkg in $enableval; do
341 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
348 ], [enable_shared=yes])
349 AC_SUBST(enable_shared)
351 # Determine the host, build, and target systems
354 # Set program_transform_name
357 # Find the native compiler
360 # autoconf is lame and doesn't give us any substitution variable for this.
361 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
362 NO_MINUS_C_MINUS_O=yes
364 OUTPUT_OPTION='-o $@'
366 AC_SUBST(NO_MINUS_C_MINUS_O)
367 AC_SUBST(OUTPUT_OPTION)
369 # See if GNAT has been installed
372 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
373 ac_cv_prog_cc_no_long_long,
374 [save_CFLAGS="$CFLAGS"
375 CFLAGS="-Wno-long-long"
376 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
377 ac_cv_prog_cc_no_long_long=no)
378 CFLAGS="$save_CFLAGS"])
380 if test x$have_gnat != xno ; then
381 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
382 ac_cv_prog_adac_no_long_long,
383 [cat >conftest.adb <<EOF
384 procedure conftest is begin null; end conftest;
386 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
387 ac_cv_prog_adac_no_long_long=yes
389 ac_cv_prog_adac_no_long_long=no
393 ac_cv_prog_adac_no_long_long=yes
397 if test $ac_cv_prog_cc_no_long_long = yes && \
398 test $ac_cv_prog_adac_no_long_long = yes ; then
399 strict1_warn="-pedantic -Wno-long-long"
401 AC_SUBST(strict1_warn)
411 # sizeof(char) is 1 by definition.
412 gcc_AC_COMPILE_CHECK_SIZEOF(short)
413 gcc_AC_COMPILE_CHECK_SIZEOF(int)
414 gcc_AC_COMPILE_CHECK_SIZEOF(long)
415 if test $ac_cv_c_long_long = yes; then
416 gcc_AC_COMPILE_CHECK_SIZEOF(long long)
418 if test $ac_cv_c___int64 = yes; then
419 gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
424 # If the native compiler is GCC, we can enable warnings even in stage1.
425 # That's useful for people building cross-compilers, or just running a
428 if test "x$GCC" = "xyes"; then
429 warn_cflags='$(GCC_WARN_CFLAGS)'
431 AC_SUBST(warn_cflags)
433 # Stage specific cflags for build.
439 stage1_cflags="-Wa,-J"
445 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
446 # sources; use -no-cpp-precomp to get to GNU cpp.
447 # Apple's GCC has bugs in designated initializer handling, so disable
449 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
452 AC_SUBST(stage1_cflags)
456 AC_MSG_CHECKING([whether a default assembler was specified])
457 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
458 if test x"$gas_flag" = x"no"; then
459 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
461 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
467 AC_MSG_CHECKING([whether a default linker was specified])
468 if test x"${DEFAULT_LINKER+set}" = x"set"; then
469 if test x"$gnu_ld_flag" = x"no"; then
470 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
472 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
478 AC_MSG_CHECKING(for GNU C library)
479 AC_CACHE_VAL(gcc_cv_glibc,
481 [#include <features.h>],[
482 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
483 #error Not a GNU C library system
487 AC_MSG_RESULT($gcc_cv_glibc)
488 if test $gcc_cv_glibc = yes; then
489 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
492 # Find some useful tools
501 gcc_AC_HEADER_STDBOOL
504 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
505 fcntl.h unistd.h sys/file.h sys/time.h \
506 sys/resource.h sys/param.h sys/times.h sys/stat.h \
507 direct.h malloc.h langinfo.h)
509 # Check for thread headers.
510 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
511 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
513 # These tests can't be done till we know if we have limits.h.
515 gcc_AC_C_COMPILE_ENDIAN
516 gcc_AC_C_FLOAT_FORMAT
518 # See if we have the mktemp command.
519 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
521 # Do we have a single-tree copy of texinfo?
522 if test -f $srcdir/../texinfo/Makefile.in; then
523 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
524 gcc_cv_prog_makeinfo_modern=yes
525 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
527 # See if makeinfo has been installed and is modern enough
528 # that we can use it.
529 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
530 [GNU texinfo.* \([0-9][0-9.]*\)],
534 if test $gcc_cv_prog_makeinfo_modern = no; then
536 *** Makeinfo is missing or too old.
537 *** Info documentation will not be built.])
540 BUILD_INFO=info AC_SUBST(BUILD_INFO)
543 # Is pod2man recent enough to regenerate manpages?
544 AC_MSG_CHECKING([for recent Pod::Man])
545 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
547 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
554 dnl Don't use AC_PROG_LEX; we insist on flex.
555 dnl LEXLIB is not useful in gcc.
556 if test -f $srcdir/../flex/skel.c; then
557 FLEX='$(objdir)/../flex/flex'
559 AC_CHECK_PROG(FLEX, flex, flex, false)
563 # The -L switch is so bison can find its skeleton file.
564 if test -f $srcdir/../bison/bison.simple; then
565 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
567 AC_CHECK_PROG(BISON, bison, bison, false)
570 # These libraries may be used by collect2.
571 # We may need a special search path to get them linked.
572 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
574 for libs in '' -lld -lmld \
575 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
576 '-L/usr/lib/cmplrs/cc3.11 -lmld'
579 AC_TRY_LINK_FUNC(ldopen,
580 [gcc_cv_collect2_libs="$libs"; break])
583 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
584 case $gcc_cv_collect2_libs in
586 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
588 AC_SUBST(COLLECT2_LIBS)
590 # When building Ada code on Alpha, we need exc_resume which is usually in
591 # -lexc. So test for it.
594 AC_SEARCH_LIBS(exc_resume, exc)
597 AC_SUBST(GNAT_LIBEXC)
599 # See if the stage1 system preprocessor understands the ANSI C
600 # preprocessor stringification operator. (Used by symcat.h.)
603 # Use <inttypes.h> only if it exists,
604 # doesn't clash with <sys/types.h>, and declares intmax_t.
605 AC_MSG_CHECKING(for inttypes.h)
606 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
608 [#include <sys/types.h>
609 #include <inttypes.h>],
611 [gcc_cv_header_inttypes_h=yes],
612 gcc_cv_header_inttypes_h=no)])
613 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
614 if test $gcc_cv_header_inttypes_h = yes; then
615 AC_DEFINE(HAVE_INTTYPES_H, 1,
616 [Define if you have a working <inttypes.h> header file.])
619 dnl Disabled until we have a complete test for buggy enum bitfields.
620 dnl gcc_AC_C_ENUM_BF_UNSIGNED
622 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
623 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
624 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
627 AC_CHECK_TYPE(ssize_t, int)
629 # Try to determine the array type of the second argument of getgroups
630 # for the target system (int or gid_t).
632 if test "${target}" = "${build}"; then
633 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
636 # This condition may need some tweaking. It should include all
637 # targets where the array type of the second argument of getgroups
638 # is int and the type of gid_t is not equivalent to int.
639 *-*-sunos* | *-*-ultrix*)
640 TARGET_GETGROUPS_T=int
643 TARGET_GETGROUPS_T=gid_t
647 AC_SUBST(TARGET_GETGROUPS_T)
649 gcc_AC_FUNC_PRINTF_PTR
654 *** UWIN may not be used as a host platform because
655 *** linking with posix.dll is not allowed by the GNU GPL])
658 # Under VMS, vfork works very different than on Unix. The standard test
659 # won't work, and it isn't easily adaptable. It makes more sense to
661 ac_cv_func_vfork_works=yes
665 AC_FUNC_MMAP_ANYWHERE
670 # We will need to find libiberty.h and ansidecl.h
671 saved_CFLAGS="$CFLAGS"
672 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
673 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
674 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
675 fprintf_unlocked strstr errno \
676 malloc realloc calloc free basename getopt clock, , ,[
677 #include "ansidecl.h"
678 #include "system.h"])
680 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
681 #include "ansidecl.h"
683 #ifdef HAVE_SYS_RESOURCE_H
684 #include <sys/resource.h>
688 gcc_AC_CHECK_DECLS(times, , ,[
689 #include "ansidecl.h"
691 #ifdef HAVE_SYS_TIMES_H
692 #include <sys/times.h>
696 # More time-related stuff.
697 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
699 #include "ansidecl.h"
701 #ifdef HAVE_SYS_TIMES_H
702 #include <sys/times.h>
704 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
705 if test $ac_cv_struct_tms = yes; then
706 AC_DEFINE(HAVE_STRUCT_TMS, 1,
707 [Define if <sys/times.h> defines struct tms.])
710 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
711 # revisit after autoconf 2.50.
712 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
714 #include "ansidecl.h"
716 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
717 if test $gcc_cv_type_clock_t = yes; then
718 AC_DEFINE(HAVE_CLOCK_T, 1,
719 [Define if <time.h> defines clock_t.])
722 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
723 CFLAGS="$saved_CFLAGS"
725 # mkdir takes a single argument on some systems.
726 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
737 build_install_headers_dir=install-headers-tar
742 host_truncate_target=
745 # Decode the host machine, then the target machine.
746 # For the host machine, we save the xm_file variable as host_xm_file;
747 # then we decode the target machine and forget everything else
748 # that came from the host machine.
749 for machine in $build $host $target; do
750 . ${srcdir}/config.gcc
753 extra_objs="${host_extra_objs} ${extra_objs}"
755 # Default the target-machine variables that were not explicitly set.
756 if test x"$tm_file" = x
757 then tm_file=$cpu_type/$cpu_type.h; fi
759 if test x"$extra_headers" = x
760 then extra_headers=; fi
762 if test x$md_file = x
763 then md_file=$cpu_type/$cpu_type.md; fi
765 if test x$out_file = x
766 then out_file=$cpu_type/$cpu_type.c; fi
768 if test x"$tmake_file" = x
769 then tmake_file=$cpu_type/t-$cpu_type
772 if test x"$dwarf2" = xyes
773 then tm_file="$tm_file tm-dwarf2.h"
776 if test x$float_format = x
777 then float_format=i64
780 if test $float_format = none
781 then float_h_file=Makefile.in
782 else float_h_file=float-$float_format.h
785 # Say what files are being used for the output code and MD file.
786 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
787 echo "Using \`$srcdir/config/$md_file' as machine description file."
789 # If any of the xm_file variables contain nonexistent files, warn
790 # about them and drop them.
793 for x in $build_xm_file; do
794 if test -f $srcdir/config/$x
796 else AC_MSG_WARN($srcdir/config/$x does not exist.)
802 for x in $host_xm_file; do
803 if test -f $srcdir/config/$x
805 else AC_MSG_WARN($srcdir/config/$x does not exist.)
811 for x in $xm_file; do
812 if test -f $srcdir/config/$x
814 else AC_MSG_WARN($srcdir/config/$x does not exist.)
820 for f in $tm_file; do
823 if test $count = ax; then
824 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
826 echo "Using the following target machine macro files:"
827 for f in $tm_file; do
828 echo " $srcdir/config/$f"
833 for f in $host_xm_file; do
836 if test $count = a; then
838 elif test $count = ax; then
839 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
841 echo "Using the following host machine macro files:"
842 for f in $host_xm_file; do
843 echo " $srcdir/config/$f"
847 if test "$host_xm_file" != "$build_xm_file"; then
849 for f in $build_xm_file; do
852 if test $count = a; then
854 elif test $count = ax; then
855 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
857 echo "Using the following build machine macro files:"
858 for f in $build_xm_file; do
859 echo " $srcdir/config/$f"
864 if test x$thread_file = x; then
865 if test x$target_thread_file != x; then
866 thread_file=$target_thread_file
872 # Look for a file containing extra machine modes.
873 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
874 extra_modes_file='$(srcdir)'/config/${extra_modes}
875 AC_SUBST(extra_modes_file)
876 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
877 [Define to the name of a file containing a list of extra machine modes
878 for this architecture.])
879 AC_DEFINE(EXTRA_CC_MODES, 1,
880 [Define if the target architecture needs extra machine modes to represent
881 the results of comparisons.])
884 # auto-host.h is the file containing items generated by autoconf and is
885 # the first file included by config.h.
886 # If host=build, it is correct to have hconfig include auto-host.h
887 # as well. If host!=build, we are in error and need to do more
888 # work to find out the build config parameters.
889 if test x$host = x$build
891 build_auto=auto-host.h
894 # We create a subdir, then run autoconf in the subdir.
895 # To prevent recursion we set host and build for the new
896 # invocation of configure to the build for this invocation
903 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
904 *) realsrcdir=../${srcdir};;
906 saved_CFLAGS="${CFLAGS}"
907 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
908 ${realsrcdir}/configure \
909 --target=$target_alias --host=$build_alias --build=$build_alias
910 CFLAGS="${saved_CFLAGS}"
912 # We just finished tests for the build machine, so rename
913 # the file auto-build.h in the gcc directory.
914 mv auto-host.h ../auto-build.h
917 build_auto=auto-build.h
922 tm_file="${tm_file} defaults.h"
923 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
924 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
925 xm_file="ansidecl.h ${xm_file} ${tm_file}"
927 # Truncate the target if necessary
928 if test x$host_truncate_target != x; then
929 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
932 # Get the version trigger filename from the toplevel
933 if test "${with_gcc_version_trigger+set}" = set; then
934 gcc_version_trigger=$with_gcc_version_trigger
936 gcc_version_trigger=${srcdir}/version.c
939 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
940 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
942 # Compile in configure arguments.
943 if test -f configargs.h ; then
944 # Being re-configured.
945 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
946 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
948 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
950 cat > configargs.h <<EOF
951 /* Generated automatically. */
952 static const char configuration_arguments[] = "$gcc_config_arguments";
953 static const char thread_model[] = "$thread_file";
957 # Internationalization
959 VERSION="$gcc_version"
963 # Enable NLS support by default
965 [ --enable-nls use Native Language Support (default)],
968 # if cross compiling, disable NLS support.
969 # It's not worth the trouble, at least for now.
971 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
972 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
978 # Windows32 Registry support for specifying GCC installation paths.
979 AC_ARG_ENABLE(win32-registry,
980 [ --disable-win32-registry
981 disable lookup of installation paths in the
982 Registry on Windows hosts
983 --enable-win32-registry enable registry lookup (default)
984 --enable-win32-registry=KEY
985 use KEY instead of GCC version as the last portion
986 of the registry key],,)
988 win32 | pe | cygwin* | mingw32* | uwin*)
989 AC_MSG_CHECKING(whether windows registry support is requested)
990 if test "x$enable_win32_registry" != xno; then
991 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
992 [Define to 1 if installation paths should be looked up in Windows32
993 Registry. Ignored on non windows32 hosts.])
995 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1000 # Check if user specified a different registry key.
1001 case "x${enable_win32_registry}" in
1004 gcc_cv_win32_registry_key="$VERSION"
1007 # no registry lookup.
1008 gcc_cv_win32_registry_key=''
1011 # user-specified key.
1012 gcc_cv_win32_registry_key="$enable_win32_registry"
1016 if test "x$enable_win32_registry" != xno; then
1017 AC_MSG_CHECKING(registry key on windows hosts)
1018 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1019 [Define to be the last portion of registry key on windows hosts.])
1020 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1025 # Get an absolute path to the GCC top-level source directory
1026 holddir=`${PWDCMD-pwd}`
1028 topdir=`${PWDCMD-pwd}`
1031 # Conditionalize the makefile for this host machine.
1032 # Make-host contains the concatenation of all host makefile fragments
1033 # [there can be more than one]. This file is built by configure.frag.
1034 host_overrides=Make-host
1035 dep_host_xmake_file=
1036 for f in .. ${host_xmake_file}
1038 if test -f ${srcdir}/config/$f
1040 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1044 # Conditionalize the makefile for this target machine.
1045 # Make-target contains the concatenation of all host makefile fragments
1046 # [there can be more than one]. This file is built by configure.frag.
1047 target_overrides=Make-target
1049 for f in .. ${tmake_file}
1051 if test -f ${srcdir}/config/$f
1053 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1057 # If the host doesn't support symlinks, modify CC in
1058 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1059 # Otherwise, we can use "CC=$(CC)".
1061 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1063 cc_set_by_configure="\$(CC)"
1064 quoted_cc_set_by_configure="\$(CC)"
1065 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1066 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1069 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1071 symbolic_link="cp -p"
1075 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1076 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1077 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1078 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1082 out_object_file=`basename $out_file .c`.o
1085 for f in $tm_file; do
1088 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1090 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1091 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1096 for f in $tm_p_file; do
1097 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1101 for f in $host_xm_file; do
1104 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1106 host_xm_file_list="${host_xm_file_list} $f" ;;
1108 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1109 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1114 for f in $build_xm_file; do
1117 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1118 auto-build.h | auto-host.h )
1119 build_xm_file_list="${build_xm_file_list} $f" ;;
1121 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1122 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1126 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1127 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1128 CROSS= AC_SUBST(CROSS)
1129 ALL=all.internal AC_SUBST(ALL)
1130 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1131 if test x$host != x$target
1133 CROSS="-DCROSS_COMPILE"
1135 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1136 case "$host","$target" in
1137 i?86-*-*,x86_64-*-* \
1138 | powerpc*-*-*,powerpc64*-*-*)
1139 CROSS="$CROSS -DNATIVE_CROSS" ;;
1143 # If this is a cross-compiler that does not
1144 # have its own set of headers then define
1147 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1148 # This prevents libgcc2 from containing any code which requires libc
1151 if [test x$host != x$target] && [test x$with_headers = x]; then
1152 inhibit_libc=-Dinhibit_libc
1154 if [test x$with_newlib = xyes]; then
1155 inhibit_libc=-Dinhibit_libc
1158 AC_SUBST(inhibit_libc)
1160 # When building gcc with a cross-compiler, we need to adjust things so
1161 # that the generator programs are still built with the native compiler.
1162 # Also, we cannot run fixincludes or fix-header.
1163 # Note that the terminology here is wrong; it should be BUILD_* throughout.
1166 # These are the normal (build=host) settings:
1167 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1168 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1169 HOST_CC='$(CC)' AC_SUBST(HOST_CC)
1170 HOST_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(HOST_CFLAGS)
1172 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1173 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1175 # And these apply if build != host.
1176 if test x$build != x$host
1179 BUILD_PREFIX_1=build-
1180 HOST_CC='$(CC_FOR_BUILD)'
1181 HOST_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1187 # Expand extra_headers to include complete path.
1188 # This substitutes for lots of t-* files.
1190 if test "x$extra_headers" = x
1193 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1194 for file in $extra_headers;
1196 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1200 if test x$use_collect2 = xno; then
1204 # Add a definition of USE_COLLECT2 if system wants one.
1205 if test x$use_collect2 != x
1207 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1208 xm_defines="${xm_defines} USE_COLLECT2"
1211 # If we have gas in the build tree, make a link to it.
1212 if test -f ../gas/Makefile; then
1213 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1216 # If we have nm and objdump in the build tree, make a link to them.
1217 if test -f ../binutils/Makefile; then
1218 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1219 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1222 # If we have ld in the build tree, make a link to it.
1223 if test -f ../ld/Makefile; then
1224 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1227 # Figure out what assembler we will be using.
1228 AC_MSG_CHECKING(what assembler to use)
1230 gcc_cv_gas_major_version=
1231 gcc_cv_gas_minor_version=
1232 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1233 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1234 if test -x "$DEFAULT_ASSEMBLER"; then
1235 gcc_cv_as="$DEFAULT_ASSEMBLER"
1236 elif test -x "$AS"; then
1238 elif test -x as$host_exeext; then
1239 # Build using assembler in the current directory.
1240 gcc_cv_as=./as$host_exeext
1241 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1242 # Single tree build which includes gas.
1243 for f in $gcc_cv_as_bfd_srcdir/configure $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1246 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1248 if test x$gcc_cv_gas_version != x; then
1253 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1254 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1255 gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.[0-9]*\.\([0-9]*\)"`
1259 if test "x$gcc_cv_as" = x; then
1260 # Search the same directories that the installed compiler will
1261 # search. Else we may find the wrong assembler and lose. If we
1262 # do not find a suitable assembler binary, then try the user's
1265 # Also note we have to check MD_EXEC_PREFIX before checking the
1266 # user's path. Unfortunately, there is no good way to get at the
1267 # value of MD_EXEC_PREFIX here. So we do a brute force search
1268 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1269 # to be fixed as part of the make/configure rewrite too.
1271 if test "x$exec_prefix" = xNONE; then
1272 if test "x$prefix" = xNONE; then
1273 test_prefix=/usr/local
1278 test_prefix=$exec_prefix
1281 # If the loop below does not find an assembler, then use whatever
1282 # one we can find in the users's path.
1284 if test "x$program_prefix" != xNONE; then
1285 gcc_cv_as=${program_prefix}as$host_exeext
1287 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1290 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1291 $test_prefix/lib/gcc-lib/$target_alias \
1292 /usr/lib/gcc/$target_alias/$gcc_version \
1293 /usr/lib/gcc/$target_alias \
1294 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1295 $test_prefix/$target_alias/bin"
1297 if test x$host = x$target; then
1298 test_dirs="$test_dirs \
1303 /bsd43/usr/lib/cmplrs/cc \
1304 /usr/cross64/usr/bin \
1305 /usr/lib/cmplrs/cc \
1306 /sysv/usr/lib/cmplrs/cc \
1307 /svr4/usr/lib/cmplrs/cc \
1311 for dir in $test_dirs; do
1312 if test -x $dir/as$host_exeext; then
1313 gcc_cv_as=$dir/as$host_exeext
1318 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1319 AC_MSG_RESULT("newly built gas")
1321 AC_MSG_RESULT($gcc_cv_as)
1324 # Figure out what linker we will be using.
1325 AC_MSG_CHECKING(what linker to use)
1327 gcc_cv_gld_major_version=
1328 gcc_cv_gld_minor_version=
1329 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1330 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1331 if test -x "$DEFAULT_LINKER"; then
1332 gcc_cv_ld="$DEFAULT_LINKER"
1333 elif test -x "$LD"; then
1335 elif test -x ld$host_exeext; then
1336 # Build using linker in the current directory.
1337 gcc_cv_ld=./ld$host_exeext
1338 elif test -f $gcc_cv_ld_gld_srcdir/configure.in -a -f ../ld/Makefile; then
1339 # Single tree build which includes ld.
1340 for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in
1343 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1345 if test x$gcc_cv_gld_version != x; then
1350 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1351 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1355 if test "x$gcc_cv_ld" = x; then
1356 # Search the same directories that the installed compiler will
1357 # search. Else we may find the wrong linker and lose. If we
1358 # do not find a suitable linker binary, then try the user's
1361 # Also note we have to check MD_EXEC_PREFIX before checking the
1362 # user's path. Unfortunately, there is no good way to get at the
1363 # value of MD_EXEC_PREFIX here. So we do a brute force search
1364 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1365 # to be fixed as part of the make/configure rewrite too.
1367 if test "x$exec_prefix" = xNONE; then
1368 if test "x$prefix" = xNONE; then
1369 test_prefix=/usr/local
1374 test_prefix=$exec_prefix
1377 # If the loop below does not find an linker, then use whatever
1378 # one we can find in the users's path.
1380 if test "x$program_prefix" != xNONE; then
1381 gcc_cv_ld=${program_prefix}ld$host_exeext
1383 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1386 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1387 $test_prefix/lib/gcc-lib/$target_alias \
1388 /usr/lib/gcc/$target_alias/$gcc_version \
1389 /usr/lib/gcc/$target_alias \
1390 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1391 $test_prefix/$target_alias/bin"
1393 if test x$host = x$target; then
1394 test_dirs="$test_dirs \
1399 /bsd43/usr/lib/cmplrs/cc \
1400 /usr/cross64/usr/bin \
1401 /usr/lib/cmplrs/cc \
1402 /sysv/usr/lib/cmplrs/cc \
1403 /svr4/usr/lib/cmplrs/cc \
1407 for dir in $test_dirs; do
1408 if test -x $dir/ld$host_exeext; then
1409 gcc_cv_ld=$dir/ld$host_exeext
1414 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
1415 AC_MSG_RESULT("newly built ld")
1417 AC_MSG_RESULT($gcc_cv_ld)
1420 # Figure out what nm we will be using.
1421 AC_MSG_CHECKING(what nm to use)
1422 if test -x nm$host_exeext; then
1423 gcc_cv_nm=./nm$host_exeext
1424 elif test "x$program_prefix" != xNONE; then
1425 gcc_cv_nm=${program_prefix}nm$host_exeext
1427 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1429 AC_MSG_RESULT($gcc_cv_nm)
1431 # Figure out what objdump we will be using.
1432 AC_MSG_CHECKING(what objdump to use)
1433 if test -x objdump$host_exeext; then
1434 gcc_cv_objdump=./objdump$host_exeext
1435 elif test "x$program_prefix" != xNONE; then
1436 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1438 gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
1440 AC_MSG_RESULT($gcc_cv_objdump)
1442 # Figure out what assembler alignment features are present.
1443 AC_MSG_CHECKING(assembler alignment features)
1444 gcc_cv_as_alignment_features=none
1445 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1446 # Gas version 2.6 and later support for .balign and .p2align.
1447 # bytes to skip when using .p2align.
1448 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1449 gcc_cv_as_alignment_features=".balign and .p2align"
1450 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1452 # Gas version 2.8 and later support specifying the maximum
1453 # bytes to skip when using .p2align.
1454 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1455 gcc_cv_as_alignment_features=".p2align including maximum skip"
1456 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1458 elif test x$gcc_cv_as != x; then
1459 # Check if we have .balign and .p2align
1460 echo ".balign 4" > conftest.s
1461 echo ".p2align 2" >> conftest.s
1462 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1463 gcc_cv_as_alignment_features=".balign and .p2align"
1464 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1466 rm -f conftest.s conftest.o
1467 # Check if specifying the maximum bytes to skip when
1468 # using .p2align is supported.
1469 echo ".p2align 4,,7" > conftest.s
1470 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1471 gcc_cv_as_alignment_features=".p2align including maximum skip"
1472 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1474 rm -f conftest.s conftest.o
1476 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1478 AC_MSG_CHECKING(assembler subsection support)
1479 gcc_cv_as_subsections=no
1480 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1481 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1482 gcc_cv_as_subsections="working .subsection -1"
1484 elif test x$gcc_cv_as != x; then
1485 # Check if we have .subsection
1486 echo ".subsection 1" > conftest.s
1487 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1488 gcc_cv_as_subsections=".subsection"
1489 if test x$gcc_cv_nm != x; then
1490 cat > conftest.s <<EOF
1491 conftest_label1: .word 0
1493 conftest_label2: .word 0
1496 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1497 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1498 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1499 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1502 gcc_cv_as_subsections="working .subsection -1"
1507 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1509 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1510 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1511 [Define if your assembler supports .subsection and .subsection -1 starts
1512 emitting at the beginning of your section.])
1514 AC_MSG_RESULT($gcc_cv_as_subsections)
1516 AC_MSG_CHECKING(assembler weak support)
1518 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1519 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1520 gcc_cv_as_weak="yes"
1522 elif test x$gcc_cv_as != x; then
1523 # Check if we have .weak
1524 echo " .weak foobar" > conftest.s
1525 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1526 gcc_cv_as_weak="yes"
1528 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1530 if test x"$gcc_cv_as_weak" = xyes; then
1531 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1533 AC_MSG_RESULT($gcc_cv_as_weak)
1535 AC_MSG_CHECKING(assembler hidden support)
1537 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1538 if test "$gcc_cv_gas_major_version" -eq 2 \
1539 -a "$gcc_cv_gas_minor_version" -eq 12 \
1540 -a "$gcc_cv_gas_patch_version" -ge 1 \
1541 -o "$gcc_cv_gas_major_version" -eq 2 \
1542 -a "$gcc_cv_gas_minor_version" -gt 12 \
1543 -o "$gcc_cv_gas_major_version" -gt 2 \
1544 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1545 gcc_cv_as_hidden="yes"
1547 elif test x$gcc_cv_as != x; then
1548 # Check if we have .hidden
1549 echo " .hidden foobar" > conftest.s
1550 echo "foobar:" >> conftest.s
1551 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1552 gcc_cv_as_hidden="yes"
1554 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1556 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1557 # This is irritatingly difficult to feature test for. Look for
1558 # the date string after the version number.
1559 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1560 if echo "$ld_ver" | grep GNU > /dev/null; then
1562 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\([ ].*\|\)$,\1,p'`
1563 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1564 if test 0"$ld_date" -lt 20020404; then
1565 if test -n "$ld_date"; then
1566 # If there was date string, but was earlier than 2002-04-04, fail
1567 gcc_cv_as_hidden="no"
1568 elif test -z "$ld_vers"; then
1569 # If there was no date string nor ld version number, something is wrong
1570 gcc_cv_as_hidden="no"
1572 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1573 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1574 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1575 test -z "$ld_vers_patch" && ld_vers_patch=0
1576 if test "$ld_vers_major" -lt 2; then
1577 gcc_cv_as_hidden="no"
1578 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1579 gcc_cv_as_hidden="no"
1580 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1581 -a "$ld_vers_patch" -eq 0; then
1582 gcc_cv_as_hidden="no"
1589 if test x"$gcc_cv_as_hidden" = xyes; then
1590 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1591 [Define if your assembler supports .hidden.])
1593 AC_MSG_RESULT($gcc_cv_as_hidden)
1594 libgcc_visibility=$gcc_cv_as_hidden
1595 AC_SUBST(libgcc_visibility)
1597 AC_MSG_CHECKING(assembler leb128 support)
1599 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1600 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 11 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1601 gcc_cv_as_leb128="yes"
1603 elif test x$gcc_cv_as != x; then
1604 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1605 cat > conftest.s <<EOF
1613 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1614 gcc_cv_as_leb128="yes"
1616 # GAS versions before 2.11 do not support uleb128,
1617 # despite appearing to.
1618 # ??? There exists an elf-specific test that will crash
1619 # the assembler. Perhaps it's better to figure out whether
1620 # arbitrary sections are supported and try the test.
1621 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1622 if echo "$as_ver" | grep GNU > /dev/null; then
1624 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1625 as_major=`echo $as_ver | sed 's/\..*//'`
1626 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1628 if test $as_major -eq 2 -a $as_minor -lt 11; then
1629 gcc_cv_as_leb128="no"
1633 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1635 if test x"$gcc_cv_as_leb128" = xyes; then
1636 AC_DEFINE(HAVE_AS_LEB128, 1,
1637 [Define if your assembler supports .uleb128.])
1639 AC_MSG_RESULT($gcc_cv_as_leb128)
1641 AC_MSG_CHECKING(assembler eh_frame optimization)
1642 gcc_cv_as_eh_frame=no
1643 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1644 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1645 gcc_cv_as_eh_frame="yes"
1647 elif test x$gcc_cv_as != x; then
1648 # Check if this is GAS.
1649 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1650 rm -f a.out 2> /dev/null
1651 if echo "$as_ver" | grep GNU > /dev/null; then
1652 # Versions up to and including 2.11.0 may mis-optimize
1653 # .eh_frame data. Try something.
1654 cat > conftest.s <<EOF
1661 .section .eh_frame,"aw",@progbits
1663 .4byte .LECIE1-.LSCIE1
1677 .4byte .LEFDE1-.LASFDE1
1679 .4byte .LASFDE1-__FRAME_BEGIN__
1688 cat > conftest.lit <<EOF
1689 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1690 0010 01000000 12000000 18000000 00000000 ................
1691 0020 08000000 04080000 0044 .........D
1693 cat > conftest.big <<EOF
1694 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1695 0010 00000001 00000012 00000018 00000000 ................
1696 0020 00000008 04000000 0844 .........D
1698 # If the assembler didn't choke, and we can objdump,
1699 # and we got the correct data, then succeed.
1700 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1701 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1702 | tail -3 > conftest.got \
1703 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1704 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1706 gcc_cv_as_eh_frame="yes"
1708 gcc_cv_as_eh_frame="bad"
1709 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1710 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1711 [Define if your assembler mis-optimizes .eh_frame data.])
1717 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1719 AC_MSG_CHECKING(assembler section merging support)
1720 gcc_cv_as_shf_merge=no
1721 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1722 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1723 gcc_cv_as_shf_merge=yes
1725 elif test x$gcc_cv_as != x; then
1726 # Check if we support SHF_MERGE sections
1727 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1728 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1729 gcc_cv_as_shf_merge=yes
1731 rm -f conftest.s conftest.o
1733 if test x"$gcc_cv_as_shf_merge" = xyes; then
1734 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1735 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1737 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1739 AC_MSG_CHECKING(assembler thread-local storage support)
1748 .section ".tdata","awT",@progbits
1751 ldq $27,__tls_get_addr($29) !literal!1
1752 lda $16,foo($29) !tlsgd!1
1753 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
1754 ldq $27,__tls_get_addr($29) !literal!2
1755 lda $16,foo($29) !tlsldm!2
1756 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
1757 ldq $1,foo($29) !gotdtprel
1758 ldah $2,foo($29) !dtprelhi
1759 lda $3,foo($2) !dtprello
1760 lda $4,foo($29) !dtprel
1761 ldq $1,foo($29) !gottprel
1762 ldah $2,foo($29) !tprelhi
1763 lda $3,foo($2) !tprello
1764 lda $4,foo($29) !tprel'
1771 .section ".tdata","awT",@progbits
1775 leal foo@TLSGD(,%ebx,1), %eax
1776 leal foo@TLSLDM(%ebx), %eax
1777 leal foo@DTPOFF(%eax), %edx
1778 movl foo@GOTTPOFF(%ebx), %eax
1779 subl foo@GOTTPOFF(%ebx), %eax
1780 movl $foo@TPOFF, %eax
1781 subl $foo@TPOFF, %eax
1782 leal foo@NTPOFF(%ecx), %eax'
1788 .section ".tdata","awT",@progbits
1791 addl r16 = @ltoff(@dtpmod(foo#)), gp
1792 addl r17 = @ltoff(@dtprel(foo#)), gp
1793 addl r18 = @ltoff(@tprel(foo#)), gp
1794 addl r19 = @dtprel(foo#), gp
1795 adds r21 = @dtprel(foo#), r13
1796 movl r23 = @dtprel(foo#)
1797 addl r20 = @tprel(foo#), gp
1798 adds r22 = @tprel(foo#), r13
1799 movl r24 = @tprel(foo#)'
1804 if test -z "$tls_first_major"; then
1806 elif test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1808 if test "$gcc_cv_gas_major_version" -eq "$tls_first_major" \
1809 -a "$gcc_cv_gas_minor_version" -ge "$tls_first_minor" \
1810 -o "$gcc_cv_gas_major_version" -gt "$tls_first_major"; then
1813 elif test x$gcc_cv_as != x; then
1814 echo "$conftest_s" > conftest.s
1815 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
1819 rm -f conftest.s conftest.o
1821 if test "$gcc_cv_as_tls" = yes; then
1822 AC_DEFINE(HAVE_AS_TLS, 1,
1823 [Define if your assembler supports thread-local storage.])
1825 AC_MSG_RESULT($gcc_cv_as_tls)
1828 # All TARGET_ABI_OSF targets.
1829 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
1830 AC_CACHE_CHECK([assembler supports explicit relocations],
1831 gcc_cv_as_explicit_relocs, [
1832 gcc_cv_as_explicit_relocs=unknown
1833 if test x$gcc_cv_gas_major_version != x \
1834 -a x$gcc_cv_gas_minor_version != x
1836 if test "$gcc_cv_gas_major_version" -eq 2 \
1837 -a "$gcc_cv_gas_minor_version" -ge 12 \
1838 -o "$gcc_cv_gas_major_version" -gt 2; then
1839 gcc_cv_as_explicit_relocs=yes
1841 elif test x$gcc_cv_as != x; then
1842 cat > conftest.s << 'EOF'
1845 extbl $3, $2, $3 !lituse_bytoff!1
1846 ldq $2, a($29) !literal!1
1847 ldq $4, b($29) !literal!2
1848 ldq_u $3, 0($2) !lituse_base!1
1849 ldq $27, f($29) !literal!5
1850 jsr $26, ($27), f !lituse_jsr!5
1851 ldah $29, 0($26) !gpdisp!3
1852 lda $0, c($29) !gprel
1853 ldah $1, d($29) !gprelhigh
1854 lda $1, d($1) !gprellow
1855 lda $29, 0($29) !gpdisp!3
1857 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1858 gcc_cv_as_explicit_relocs=yes
1860 gcc_cv_as_explicit_relocs=no
1862 rm -f conftest.s conftest.o
1865 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
1866 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
1867 [Define if your assembler supports explicit relocations.])
1871 AC_CACHE_CHECK([assembler .register pseudo-op support],
1872 gcc_cv_as_register_pseudo_op, [
1873 gcc_cv_as_register_pseudo_op=unknown
1874 if test x$gcc_cv_as != x; then
1875 # Check if we have .register
1876 echo ".register %g2, #scratch" > conftest.s
1877 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1878 gcc_cv_as_register_pseudo_op=yes
1880 gcc_cv_as_register_pseudo_op=no
1882 rm -f conftest.s conftest.o
1885 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1886 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1887 [Define if your assembler supports .register.])
1890 AC_CACHE_CHECK([assembler supports -relax],
1891 gcc_cv_as_relax_opt, [
1892 gcc_cv_as_relax_opt=unknown
1893 if test x$gcc_cv_as != x; then
1894 # Check if gas supports -relax
1895 echo ".text" > conftest.s
1896 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1897 gcc_cv_as_relax_opt=yes
1899 gcc_cv_as_relax_opt=no
1901 rm -f conftest.s conftest.o
1904 if test "x$gcc_cv_as_relax_opt" = xyes; then
1905 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1906 [Define if your assembler supports -relax option.])
1909 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
1910 gcc_cv_as_sparc_ua_pcrel, [
1911 gcc_cv_as_sparc_ua_pcrel=unknown
1912 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
1913 gcc_cv_as_sparc_ua_pcrel=no
1914 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
1915 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1916 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
1917 gcc_cv_as_sparc_ua_pcrel=yes
1919 rm -f conftest.s conftest.o conftest
1922 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1923 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
1924 [Define if your assembler and linker support unaligned PC relative relocs.])
1927 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
1928 gcc_cv_as_sparc_ua_pcrel_hidden, [
1929 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1930 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
1931 if test x$gcc_cv_objdump != x; then
1932 gcc_cv_as_sparc_ua_pcrel_hidden=no
1933 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
1934 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
1935 echo "foo: .skip 4" >> conftest.s
1936 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1937 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
1938 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
1939 | grep ' 31000000 07323334' > /dev/null 2>&1; then
1940 if $gcc_cv_objdump -R conftest 2> /dev/null \
1941 | grep 'DISP32' > /dev/null 2>&1; then
1944 gcc_cv_as_sparc_ua_pcrel_hidden=yes
1948 rm -f conftest.s conftest.o conftest
1950 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
1953 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
1954 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
1955 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
1958 if test "x$gcc_cv_as_flags64" != xno; then
1959 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1960 gcc_cv_as_offsetable_lo10, [
1961 gcc_cv_as_offsetable_lo10=unknown
1962 if test "x$gcc_cv_as" != x; then
1963 # Check if assembler has offsetable %lo()
1964 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1965 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1966 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1968 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1969 > /dev/null 2>&1; then
1970 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1971 gcc_cv_as_offsetable_lo10=no
1973 gcc_cv_as_offsetable_lo10=yes
1976 gcc_cv_as_offsetable_lo10=no
1978 rm -f conftest.s conftest.o conftest1.s conftest1.o
1981 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1982 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1983 [Define if your assembler supports offsetable %lo().])
1990 i[34567]86-*-* | x86_64-*-*)
1992 AC_MSG_CHECKING(assembler instructions)
1993 gcc_cv_as_instructions=
1994 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1995 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1996 gcc_cv_as_instructions="filds fists"
1998 elif test x$gcc_cv_as != x; then
1999 set "filds fists" "filds mem; fists mem"
2002 echo "$2" > conftest.s
2003 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2004 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2008 rm -f conftest.s conftest.o
2010 if test x"$gcc_cv_as_instructions" != x; then
2011 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2013 AC_MSG_RESULT($gcc_cv_as_instructions)
2015 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2016 gcc_cv_as_gotoff_in_data=no
2017 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
2019 if test "$gcc_cv_gas_major_version" -eq 2 \
2020 -a "$gcc_cv_gas_minor_version" -ge 11 \
2021 -o "$gcc_cv_gas_major_version" -gt 2; then
2022 gcc_cv_as_gotoff_in_data=yes
2024 elif test x$gcc_cv_as != x; then
2025 cat > conftest.s <<EOF
2032 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2033 gcc_cv_as_gotoff_in_data=yes
2036 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2037 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2038 [Define true if the assembler supports '.long foo@GOTOFF'.])
2039 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2043 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2044 gcc_cv_as_dwarf2_debug_line=no
2045 # ??? Not all targets support dwarf2 debug_line, even within a version
2046 # of gas. Moreover, we need to emit a valid instruction to trigger any
2047 # info to the output file. So, as supported targets are added to gas 2.11,
2048 # add some instruction here to (also) show we expect this might work.
2049 # ??? Once 2.11 is released, probably need to add first known working
2050 # version to the per-target configury.
2052 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-* | hppa*-*-*)
2059 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2061 if test "$gcc_cv_gas_major_version" -eq 2 \
2062 -a "$gcc_cv_gas_minor_version" -ge 11 \
2063 -o "$gcc_cv_gas_major_version" -gt 2 \
2064 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2065 && test x"$insn" != x ; then
2066 gcc_cv_as_dwarf2_debug_line="yes"
2068 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2069 echo ' .file 1 "conftest.s"' > conftest.s
2070 echo ' .loc 1 3 0' >> conftest.s
2071 echo " $insn" >> conftest.s
2072 # ??? This fails with non-gnu grep.
2073 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2074 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2075 # The .debug_line file table must be in the exact order that
2076 # we specified the files, since these indices are also used
2077 # by DW_AT_decl_file. Approximate this test by testing if
2078 # the assembler bitches if the same index is assigned twice.
2079 echo ' .file 1 "foo.s"' > conftest.s
2080 echo ' .file 1 "bar.s"' >> conftest.s
2081 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2083 gcc_cv_as_dwarf2_debug_line="no"
2085 gcc_cv_as_dwarf2_debug_line="yes"
2088 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2090 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2091 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2092 [Define if your assembler supports dwarf2 .file/.loc directives,
2093 and preserves file table indices exactly as given.])
2095 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2097 AC_MSG_CHECKING(assembler --gdwarf2 support)
2098 gcc_cv_as_gdwarf2_flag=no
2099 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2101 if test "$gcc_cv_gas_major_version" -eq 2 \
2102 -a "$gcc_cv_gas_minor_version" -ge 11 \
2103 -o "$gcc_cv_gas_major_version" -gt 2 \
2104 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2105 && test x"$insn" != x ; then
2106 gcc_cv_as_gdwarf2_flag="yes"
2108 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2109 echo '' > conftest.s
2110 # ??? This fails with non-gnu grep.
2111 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2113 gcc_cv_as_gdwarf2_flag="yes"
2115 rm -f conftest.s conftest.o
2117 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2118 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2119 [Define if your assembler supports the --gdwarf2 option.])
2121 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2123 AC_MSG_CHECKING(assembler --gstabs support)
2124 gcc_cv_as_gstabs_flag=no
2125 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2127 if test "$gcc_cv_gas_major_version" -eq 2 \
2128 -a "$gcc_cv_gas_minor_version" -ge 11 \
2129 -o "$gcc_cv_gas_major_version" -gt 2 \
2130 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2131 && test x"$insn" != x ; then
2132 gcc_cv_as_gstabs_flag="yes"
2134 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2135 echo '' > conftest.s
2136 # ??? This fails with non-gnu grep.
2137 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2138 gcc_cv_as_gstabs_flag="yes"
2140 rm -f conftest.s conftest.o
2142 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2143 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2144 [Define if your assembler supports the --gstabs option.])
2146 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2148 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2149 gcc_cv_ld_eh_frame_hdr=no
2150 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2151 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2152 gcc_cv_ld_eh_frame_hdr=yes
2154 elif test x$gcc_cv_ld != x; then
2155 # Check if linker supports --eh-frame-hdr option
2156 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2157 gcc_cv_ld_eh_frame_hdr=yes
2160 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2161 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2162 [Define if your linker supports --eh-frame-hdr option.])
2164 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2166 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
2167 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2170 # Figure out what language subdirectories are present.
2171 # Look if the user specified --enable-languages="..."; if not, use
2172 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2174 # NB: embedded tabs in this IF block -- do not untabify
2175 if test x"${enable_languages+set}" != xset; then
2176 if test x"${LANGUAGES+set}" = xset; then
2177 enable_languages="${LANGUAGES}"
2178 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2181 enable_languages=all
2184 if test x"${enable_languages}" = x \
2185 || test x"${enable_languages}" = xyes;
2187 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2190 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2192 # First scan to see if an enabled language requires some other language.
2193 # We assume that a given config-lang.in will list all the language
2194 # front ends it requires, even if some are required indirectly.
2195 for lang in ${srcdir}/*/config-lang.in ..
2200 # The odd quoting in the next line works around
2201 # an apparent bug in bash 1.12 on linux.
2203 ${srcdir}/[*]/config-lang.in)
2206 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2207 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2208 for other in $this_lang_requires
2210 case ,${enable_languages}, in
2216 enable_languages="$enable_languages,$other"
2225 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2228 for lang in ${srcdir}/*/config-lang.in ..
2232 # The odd quoting in the next line works around
2233 # an apparent bug in bash 1.12 on linux.
2235 ${srcdir}/[*]/config-lang.in) ;;
2237 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2238 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2239 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2240 if test "x$lang_alias" = x
2242 echo "$lang doesn't set \$language." 1>&2
2245 case ${build_by_default},${enable_languages}, in
2246 *,$lang_alias,*) add_this_lang=yes ;;
2247 no,*) add_this_lang=no ;;
2248 *,all,*) add_this_lang=yes ;;
2249 *) add_this_lang=no ;;
2251 found_languages="${found_languages} ${lang_alias}"
2252 if test x"${add_this_lang}" = xyes; then
2254 ${srcdir}/ada/config-lang.in)
2255 if test x$have_gnat = xyes ; then
2256 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2260 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2270 for expected_language in ${expected_languages} ..
2272 if test "${expected_language}" != ..; then
2273 missing_language="${expected_language}"
2274 if test "${expected_language}" = "c" \
2275 || test "${expected_language}" = "all"; then
2278 for found_language in ${found_languages} ..
2280 if test "${found_language}" != ..; then
2281 if test "${expected_language}" = "${found_language}"; then
2286 if test "x${missing_language}" != x; then
2287 missing_languages="${missing_languages} ${missing_language}"
2292 if test "x$missing_languages" != x; then
2294 The following requested languages were not found:${missing_languages}
2295 The following languages were available: c${found_languages}])
2298 # Make gthr-default.h if we have a thread file.
2300 if test $thread_file != single; then
2301 rm -f gthr-default.h
2302 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2303 gthread_flags=-DHAVE_GTHR_DEFAULT
2305 AC_SUBST(gthread_flags)
2307 # Find out what GC implementation we want, or may, use.
2309 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2316 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2321 echo "Using $GGC for garbage collection."
2323 # Use the system's zlib library.
2325 zlibinc="-I\$(srcdir)/../zlib"
2326 AC_ARG_WITH(system-zlib,
2327 [ --with-system-zlib use installed libz],
2334 dnl Very limited version of automake's enable-maintainer-mode
2336 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2337 dnl maintainer-mode is disabled by default
2338 AC_ARG_ENABLE(maintainer-mode,
2339 [ --enable-maintainer-mode
2340 enable make rules and dependencies not useful
2341 (and sometimes confusing) to the casual installer],
2342 maintainer_mode=$enableval,
2345 AC_MSG_RESULT($maintainer_mode)
2347 if test "$maintainer_mode" = "yes"; then
2354 # With Setjmp/Longjmp based exception handling.
2355 AC_ARG_ENABLE(sjlj-exceptions,
2356 [ --enable-sjlj-exceptions
2357 arrange to use setjmp/longjmp exception handling],
2358 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
2359 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
2360 [Define 0/1 to force the choice for exception handling model.])])
2362 # Use libunwind based exception handling.
2363 AC_ARG_ENABLE(libunwind-exceptions,
2364 [ --enable-libunwind-exceptions force use libunwind for exceptions],
2365 use_libunwind_exceptions=$enableval,
2366 use_libunwind_exceptions=no)
2367 if test x"$use_libunwind_exceptions" = xyes; then
2368 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
2369 [Define if gcc should use -lunwind.])
2372 # Make empty files to contain the specs and options for each language.
2373 # Then add #include lines to for a compiler that has specs and/or options.
2378 for subdir in . $subdirs
2380 if test -f $srcdir/$subdir/lang-specs.h; then
2381 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2383 if test -f $srcdir/$subdir/lang-options.h; then
2384 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2386 if test -f $srcdir/$subdir/$subdir-tree.def; then
2387 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2391 # These (without "all_") are set in each config-lang.in.
2392 # `language' must be a single word so is spelled singularly.
2397 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2398 # List of language makefile fragments.
2400 # Files for gengtype
2401 all_gtfiles="$config_gtfiles"
2403 # Add the language fragments.
2404 # Languages are added via two mechanisms. Some information must be
2405 # recorded in makefile variables, these are defined in config-lang.in.
2406 # We accumulate them and plug them into the main Makefile.
2407 # The other mechanism is a set of hooks for each of the main targets
2408 # like `clean', `install', etc.
2410 language_fragments="Make-lang"
2411 language_hooks="Make-hooks"
2413 for s in .. $subdirs
2423 . ${srcdir}/$s/config-lang.in
2424 if test "x$language" = x
2426 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2429 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2430 if test -f ${srcdir}/$s/Makefile.in
2431 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2433 all_languages="$all_languages $language"
2434 if test "x$boot_language" = xyes
2436 all_boot_languages="$all_boot_languages $language"
2438 all_compilers="$all_compilers $compilers"
2439 all_stagestuff="$all_stagestuff $stagestuff"
2440 all_outputs="$all_outputs $outputs"
2441 all_gtfiles="$all_gtfiles $gtfiles"
2446 for language in .. $all_languages
2448 if test $language != ".."
2450 check_languages="$check_languages check-$language"
2454 # Since we can't use `::' targets, we link each language in
2455 # with a set of hooks, reached indirectly via lang.${target}.
2459 target_list="all.build all.cross start.encap rest.encap \
2460 info dvi generated-manpages \
2461 install-normal install-common install-info install-man \
2463 mostlyclean clean distclean extraclean maintainer-clean \
2464 stage1 stage2 stage3 stage4"
2465 for t in $target_list
2468 for lang in .. $all_languages
2470 if test $lang != ".."; then
2474 echo "lang.$t: $x" >> Make-hooks
2479 echo "dir ." > .gdbinit
2480 echo "dir ${srcdir}" >> .gdbinit
2481 if test x$gdb_needs_out_file_path = xyes
2483 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2485 if test "x$subdirs" != x; then
2488 echo "dir ${srcdir}/$s" >> .gdbinit
2491 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2493 # Define variables host_canonical and build_canonical
2494 # because some Cygnus local changes in the Makefile depend on them.
2495 build_canonical=${build}
2496 host_canonical=${host}
2498 if test "${host}" != "${target}" ; then
2499 target_subdir=${target_alias}/
2501 AC_SUBST(build_canonical)
2502 AC_SUBST(host_canonical)
2503 AC_SUBST(target_subdir)
2505 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2506 # absolute path for gcc_tooldir based on inserting the number of up-directory
2507 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2508 # $(libsubdir)/@(unlibsubdir) based path.
2509 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2510 # make and thus we'd get different behavior depending on where we built the
2512 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2513 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2515 changequote(<<, >>)dnl
2516 # An explanation of the sed strings:
2517 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2518 # -e 's|/$||' match a trailing forward slash and eliminates it
2519 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2520 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2522 # (*) Note this pattern overwrites the first character of the string
2523 # with a forward slash if one is not already present. This is not a
2524 # problem because the exact names of the sub-directories concerned is
2525 # unimportant, just the number of them matters.
2527 # The practical upshot of these patterns is like this:
2529 # prefix exec_prefix result
2530 # ------ ----------- ------
2532 # /foo/ /foo/bar ../
2533 # /foo /foo/bar/ ../
2534 # /foo/ /foo/bar/ ../
2535 # /foo /foo/bar/ugg ../../
2538 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2539 changequote([, ])dnl
2541 AC_SUBST(gcc_tooldir)
2544 # Find a directory in which to install a shared libgcc.
2546 AC_ARG_ENABLE(version-specific-runtime-libs,
2547 [ --enable-version-specific-runtime-libs
2548 specify that runtime libraries should be
2549 installed in a compiler-specific directory])
2551 AC_ARG_WITH(slibdir,
2552 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2553 slibdir="$with_slibdir",
2554 if test "${enable_version_specific_runtime_libs+set}" = set; then
2555 slibdir='$(libsubdir)'
2556 elif test "$host" != "$target"; then
2557 slibdir='$(build_tooldir)/lib'
2563 # Nothing to do for FLOAT_H, float_format already handled.
2564 objdir=`${PWDCMD-pwd}`
2567 # Process the language and host/target makefile fragments.
2568 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2570 # Substitute configuration variables
2572 AC_SUBST(all_boot_languages)
2573 AC_SUBST(all_compilers)
2574 AC_SUBST(all_gtfiles)
2575 AC_SUBST(all_lang_makefiles)
2576 AC_SUBST(all_languages)
2577 AC_SUBST(all_stagestuff)
2578 AC_SUBST(build_exeext)
2579 AC_SUBST(build_install_headers_dir)
2580 AC_SUBST(build_xm_file_list)
2581 AC_SUBST(build_xm_file)
2582 AC_SUBST(build_xm_defines)
2583 AC_SUBST(check_languages)
2584 AC_SUBST(cc_set_by_configure)
2585 AC_SUBST(quoted_cc_set_by_configure)
2586 AC_SUBST(cpp_install_dir)
2587 AC_SUBST(dep_host_xmake_file)
2588 AC_SUBST(dep_tmake_file)
2589 AC_SUBST(extra_headers_list)
2590 AC_SUBST(extra_objs)
2591 AC_SUBST(extra_parts)
2592 AC_SUBST(extra_passes)
2593 AC_SUBST(extra_programs)
2594 AC_SUBST(float_h_file)
2595 AC_SUBST(gcc_config_arguments)
2596 AC_SUBST(gcc_gxx_include_dir)
2597 AC_SUBST(libstdcxx_incdir)
2598 AC_SUBST(gcc_version)
2599 AC_SUBST(gcc_version_full)
2600 AC_SUBST(gcc_version_trigger)
2601 AC_SUBST(host_exeext)
2602 AC_SUBST(host_extra_gcc_objs)
2603 AC_SUBST(host_xm_file_list)
2604 AC_SUBST(host_xm_file)
2605 AC_SUBST(host_xm_defines)
2607 AC_SUBST(lang_options_files)
2608 AC_SUBST(lang_specs_files)
2609 AC_SUBST(lang_tree_files)
2610 AC_SUBST(local_prefix)
2612 AC_SUBST(objc_boehm_gc)
2614 AC_SUBST(out_object_file)
2615 AC_SUBST(stage_prefix_set_by_configure)
2616 AC_SUBST(quoted_stage_prefix_set_by_configure)
2617 AC_SUBST(symbolic_link)
2618 AC_SUBST(thread_file)
2619 AC_SUBST(tm_file_list)
2621 AC_SUBST(tm_defines)
2622 AC_SUBST(tm_p_file_list)
2625 AC_SUBST(xm_defines)
2626 AC_SUBST(target_alias)
2627 AC_SUBST(c_target_objs)
2628 AC_SUBST(cxx_target_objs)
2629 AC_SUBST(target_cpu_default)
2631 AC_SUBST_FILE(target_overrides)
2632 AC_SUBST_FILE(host_overrides)
2633 AC_SUBST_FILE(language_fragments)
2634 AC_SUBST_FILE(language_hooks)
2636 # Echo that links are built
2637 if test x$host = x$target
2645 if test x$host != x$build
2647 str3=" on a $build system"
2650 if test "x$str2" != x || test "x$str3" != x
2655 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2657 if test "x$str2" != x || test "x$str3" != x
2659 echo " ${str2}${str3}." 1>&2
2662 # Truncate the target if necessary
2663 if test x$host_truncate_target != x; then
2664 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2667 # Configure the subdirectories
2668 # AC_CONFIG_SUBDIRS($subdirs)
2670 # Create the Makefile
2671 # and configure language subdirectories
2672 AC_OUTPUT($all_outputs,
2674 case x$CONFIG_HEADERS in
2675 xauto-host.h:config.in)
2678 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2679 # bootstrapping and the installation procedure can still use
2680 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2681 # FLAGS_TO_PASS has been modified to solve the problem there.
2682 # This is virtually a duplicate of what happens in configure.lang; we do
2683 # an extra check to make sure this only happens if ln -s can be used.
2684 if test "$symbolic_link" = "ln -s"; then
2685 for d in .. ${subdirs} fixinc ; do
2686 if test $d != ..; then
2687 STARTDIR=`${PWDCMD-pwd}`
2689 for t in stage1 stage2 stage3 stage4 include
2692 $symbolic_link ../$t $t 2>/dev/null
2698 # Avoid having to add intl to our include paths.
2699 if test -f intl/libintl.h; then
2700 echo creating libintl.h
2701 echo '#include "intl/libintl.h"' >libintl.h
2705 symbolic_link='$symbolic_link'