2 # Process this file with autoconf to generate a configuration script.
4 # Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
6 #This file is part of GCC.
8 #GCC is free software; you can redistribute it and/or modify it under
9 #the terms of the GNU General Public License as published by the Free
10 #Software Foundation; either version 2, or (at your option) any later
13 #GCC is distributed in the hope that it will be useful, but WITHOUT
14 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 #You should have received a copy of the GNU General Public License
19 #along with GCC; see the file COPYING. If not, write to the Free
20 #Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 # Initialization and defaults
26 AC_CONFIG_HEADER(auto-host.h:config.in)
33 # Check for bogus environment variables.
34 # Test if LIBRARY_PATH contains the notation for the current directory
35 # since this would lead to problems installing/building glibc.
36 # LIBRARY_PATH contains the current directory if one of the following
38 # - one of the terminals (":" and ";") is the first or last sign
39 # - two terminals occur directly after each other
40 # - the path contains an element with a dot in it
41 AC_MSG_CHECKING(LIBRARY_PATH variable)
43 case ${LIBRARY_PATH} in
44 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
45 library_path_setting="contains current directory"
48 library_path_setting="ok"
52 AC_MSG_RESULT($library_path_setting)
53 if test "$library_path_setting" != "ok"; then
55 *** LIBRARY_PATH shouldn't contain the current directory when
56 *** building gcc. Please change the environment variable
57 *** and run configure again.])
60 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
61 # since this would lead to problems installing/building glibc.
62 # GCC_EXEC_PREFIX contains the current directory if one of the following
64 # - one of the terminals (":" and ";") is the first or last sign
65 # - two terminals occur directly after each other
66 # - the path contains an element with a dot in it
67 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
69 case ${GCC_EXEC_PREFIX} in
70 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
71 gcc_exec_prefix_setting="contains current directory"
74 gcc_exec_prefix_setting="ok"
78 AC_MSG_RESULT($gcc_exec_prefix_setting)
79 if test "$gcc_exec_prefix_setting" != "ok"; then
81 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
82 *** building gcc. Please change the environment variable
83 *** and run configure again.])
86 # Check for additional parameters
90 [ --with-gnu-ld arrange to work with GNU ld.],
91 gnu_ld_flag="$with_gnu_ld",
96 [ --with-ld arrange to use the specified ld (full pathname)],
97 DEFAULT_LINKER="$with_ld")
98 if test x"${DEFAULT_LINKER+set}" = x"set"; then
99 if test ! -x "$DEFAULT_LINKER"; then
100 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
101 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
104 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
105 [Define to enable the use of a default linker.])
110 [ --with-gnu-as arrange to work with GNU as],
111 gas_flag="$with_gnu_as",
115 [ --with-as arrange to use the specified as (full pathname)],
116 DEFAULT_ASSEMBLER="$with_as")
117 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
118 if test ! -x "$DEFAULT_ASSEMBLER"; then
119 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
120 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
123 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
124 [Define to enable the use of a default assembler.])
129 [ --with-stabs arrange to use stabs instead of host debug format],
135 [ --with-elf arrange to use ELF instead of host debug format],
139 # Specify the local prefix
141 AC_ARG_WITH(local-prefix,
142 [ --with-local-prefix=DIR specifies directory to put local include],
143 [case "${withval}" in
144 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
146 *) local_prefix=$with_local_prefix ;;
149 # Default local prefix if it is empty
150 if test x$local_prefix = x; then
151 local_prefix=/usr/local
154 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
155 # passed in by the toplevel make and thus we'd get different behavior
156 # depending on where we built the sources.
158 # Specify the g++ header file directory
159 AC_ARG_WITH(gxx-include-dir,
160 [ --with-gxx-include-dir=DIR
161 specifies directory to put g++ header files],
162 [case "${withval}" in
163 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
165 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
168 if test x${gcc_gxx_include_dir} = x; then
169 if test x${enable_version_specific_runtime_libs} = xyes; then
170 gcc_gxx_include_dir='${libsubdir}/include/g++'
172 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
173 changequote(<<, >>)dnl
174 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
179 # Determine whether or not multilibs are enabled.
180 AC_ARG_ENABLE(multilib,
181 [ --enable-multilib enable library support for multiple ABIs],
182 [], [enable_multilib=yes])
183 AC_SUBST(enable_multilib)
185 # Enable expensive internal checks
186 AC_ARG_ENABLE(checking,
187 [ --enable-checking[=LIST]
188 enable expensive run-time checks. With LIST,
189 enable only specific categories of checks.
190 Categories are: misc,tree,rtl,gc,gcac; default
196 ac_gc_always_collect=
197 case "${enableval}" in
198 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;;
200 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
201 set fnord $enableval; shift
206 misc) ac_checking=1 ;;
207 tree) ac_tree_checking=1 ;;
208 rtl) ac_rtl_checking=1 ;;
209 gc) ac_gc_checking=1 ;;
210 gcac) ac_gc_always_collect=1 ;;
211 *) AC_MSG_ERROR(unknown check category $check) ;;
217 # Enable some checks by default for development versions of GCC
218 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1;])
219 if test x$ac_checking != x ; then
220 AC_DEFINE(ENABLE_CHECKING, 1,
221 [Define if you want more run-time sanity checks. This one gets a grab
222 bag of miscellaneous but relatively cheap checks.])
224 if test x$ac_tree_checking != x ; then
225 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
226 [Define if you want all operations on trees (the basic data
227 structure of the front ends) to be checked for dynamic type safety
228 at runtime. This is moderately expensive.])
230 if test x$ac_rtl_checking != x ; then
231 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
232 [Define if you want all operations on RTL (the basic data structure
233 of the optimizer and back end) to be checked for dynamic type safety
234 at runtime. This is quite expensive.])
236 if test x$ac_gc_checking != x ; then
237 AC_DEFINE(ENABLE_GC_CHECKING, 1,
238 [Define if you want the garbage collector to do object poisoning and
239 other memory allocation checks. This is quite expensive.])
241 if test x$ac_gc_always_collect != x ; then
242 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
243 [Define if you want the garbage collector to operate in maximally
244 paranoid mode, validating the entire heap and collecting garbage at
245 every opportunity. This is extremely expensive.])
250 [ --disable-cpp don't provide a user-visible C preprocessor],
251 [], [enable_cpp=yes])
253 AC_ARG_WITH(cpp_install_dir,
254 [ --with-cpp-install-dir=DIR
255 install the user visible C preprocessor in DIR
256 (relative to PREFIX) as well as PREFIX/bin],
257 [if test x$withval = xyes; then
258 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
259 elif test x$withval != xno; then
260 cpp_install_dir=$withval
263 # Enable Multibyte Characters for C/C++
264 AC_ARG_ENABLE(c-mbchar,
265 [ --enable-c-mbchar enable multibyte characters for C and C++],
266 if test x$enable_c_mbchar != xno; then
267 AC_DEFINE(MULTIBYTE_CHARS, 1,
268 [Define if you want the C and C++ compilers to support multibyte
269 character sets for source code.])
273 # Pass with no value to take the default
274 # Pass with a value to specify a thread package
275 AC_ARG_ENABLE(threads,
276 [ --enable-threads enable thread usage for target GCC
277 --enable-threads=LIB use LIB thread package for target GCC],,
280 enable_threads_flag=$enable_threads
281 # Check if a valid thread package
282 case x${enable_threads_flag} in
285 target_thread_file='single'
289 target_thread_file=''
291 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
292 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
293 target_thread_file=$enable_threads_flag
296 echo "$enable_threads is an unknown thread package" 1>&2
301 AC_ARG_ENABLE(objc-gc,
302 [ --enable-objc-gc enable the use of Boehm's garbage collector with
303 the GNU Objective-C runtime],
304 if test x$enable_objc_gc = xno; then
312 [ --with-dwarf2 force the default debug format to be DWARF 2],
313 dwarf2="$with_dwarf2",
316 AC_ARG_ENABLE(shared,
317 [ --disable-shared don't provide a shared libgcc],
319 case $enable_shared in
323 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
324 for pkg in $enableval; do
325 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
332 ], [enable_shared=yes])
333 AC_SUBST(enable_shared)
335 # Determine the host, build, and target systems
338 # Set program_transform_name
341 # Find the native compiler
344 # autoconf is lame and doesn't give us any substitution variable for this.
345 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
346 NO_MINUS_C_MINUS_O=yes
348 OUTPUT_OPTION='-o $@'
350 AC_SUBST(NO_MINUS_C_MINUS_O)
351 AC_SUBST(OUTPUT_OPTION)
353 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
354 ac_cv_prog_cc_no_long_long,
355 [save_CFLAGS="$CFLAGS"
356 CFLAGS="-Wno-long-long"
357 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
358 ac_cv_prog_cc_no_long_long=no)
359 CFLAGS="$save_CFLAGS"])
361 if test $ac_cv_prog_cc_no_long_long = yes; then
362 strict1_warn="-pedantic -Wno-long-long"
364 AC_SUBST(strict1_warn)
374 # sizeof(char) is 1 by definition.
375 gcc_AC_COMPILE_CHECK_SIZEOF(short)
376 gcc_AC_COMPILE_CHECK_SIZEOF(int)
377 gcc_AC_COMPILE_CHECK_SIZEOF(long)
378 if test $ac_cv_c_long_long = yes; then
379 gcc_AC_COMPILE_CHECK_SIZEOF(long long)
381 if test $ac_cv_c___int64 = yes; then
382 gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
387 # If the native compiler is GCC, we can enable warnings even in stage1.
388 # That's useful for people building cross-compilers, or just running a
391 if test "x$GCC" = "xyes"; then
392 warn_cflags='$(GCC_WARN_CFLAGS)'
394 AC_SUBST(warn_cflags)
396 # Stage specific cflags for build.
402 stage1_cflags="-Wa,-J"
408 AC_SUBST(stage1_cflags)
412 AC_MSG_CHECKING([whether a default assembler was specified])
413 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
414 if test x"$gas_flag" = x"no"; then
415 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
417 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
423 AC_MSG_CHECKING([whether a default linker was specified])
424 if test x"${DEFAULT_LINKER+set}" = x"set"; then
425 if test x"$gnu_ld_flag" = x"no"; then
426 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
428 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
434 AC_MSG_CHECKING(for GNU C library)
435 AC_CACHE_VAL(gcc_cv_glibc,
437 [#include <features.h>],[
438 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
439 #error Not a GNU C library system
443 AC_MSG_RESULT($gcc_cv_glibc)
444 if test $gcc_cv_glibc = yes; then
445 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
448 # Find some useful tools
457 gcc_AC_HEADER_STDBOOL
460 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
461 fcntl.h unistd.h sys/file.h sys/time.h \
462 sys/resource.h sys/param.h sys/times.h sys/stat.h \
463 direct.h malloc.h langinfo.h)
465 # Check for thread headers.
466 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
467 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
469 # These tests can't be done till we know if we have limits.h.
471 gcc_AC_C_COMPILE_ENDIAN
472 gcc_AC_C_FLOAT_FORMAT
474 # See if GNAT has been installed
477 # See if we have the mktemp command.
478 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
480 # Do we have a single-tree copy of texinfo?
481 if test -f $srcdir/../texinfo/Makefile.in; then
482 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
483 gcc_cv_prog_makeinfo_modern=yes
484 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
486 # See if makeinfo has been installed and is modern enough
487 # that we can use it.
488 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
489 [GNU texinfo.* \([0-9][0-9.]*\)],
493 if test $gcc_cv_prog_makeinfo_modern = no; then
495 *** Makeinfo is missing or too old.
496 *** Info documentation will not be built.])
499 BUILD_INFO=info AC_SUBST(BUILD_INFO)
502 # Is pod2man recent enough to regenerate manpages?
503 AC_MSG_CHECKING([for recent Pod::Man])
504 if perl -e 'use 1.10 Pod::Man' >/dev/null 2>&1; then
506 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
513 dnl Don't use AC_PROG_LEX; we insist on flex.
514 dnl LEXLIB is not useful in gcc.
515 if test -f $srcdir/../flex/skel.c; then
516 FLEX='$(objdir)/../flex/flex'
518 AC_CHECK_PROG(FLEX, flex, flex, false)
522 # The -L switch is so bison can find its skeleton file.
523 if test -f $srcdir/../bison/bison.simple; then
524 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
526 AC_CHECK_PROG(BISON, bison, bison, false)
529 # These libraries may be used by collect2.
530 # We may need a special search path to get them linked.
531 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
533 for libs in '' -lld -lmld \
534 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
535 '-L/usr/lib/cmplrs/cc3.11 -lmld'
538 AC_TRY_LINK_FUNC(ldopen,
539 [gcc_cv_collect2_libs="$libs"; break])
542 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
543 case $gcc_cv_collect2_libs in
545 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
547 AC_SUBST(COLLECT2_LIBS)
549 # When building Ada code on Alpha, we need exc_resume which is usually in
550 # -lexc. So test for it.
553 AC_SEARCH_LIBS(exc_resume, exc)
556 AC_SUBST(GNAT_LIBEXC)
558 # See if the stage1 system preprocessor understands the ANSI C
559 # preprocessor stringification operator. (Used by symcat.h.)
562 # Use <inttypes.h> only if it exists,
563 # doesn't clash with <sys/types.h>, and declares intmax_t.
564 AC_MSG_CHECKING(for inttypes.h)
565 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
567 [#include <sys/types.h>
568 #include <inttypes.h>],
570 [gcc_cv_header_inttypes_h=yes],
571 gcc_cv_header_inttypes_h=no)])
572 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
573 if test $gcc_cv_header_inttypes_h = yes; then
574 AC_DEFINE(HAVE_INTTYPES_H, 1,
575 [Define if you have a working <inttypes.h> header file.])
578 dnl Disabled until we have a complete test for buggy enum bitfields.
579 dnl gcc_AC_C_ENUM_BF_UNSIGNED
581 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
582 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
583 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat)
585 AC_CHECK_TYPE(ssize_t, int)
587 # Try to determine the array type of the second argument of getgroups
588 # for the target system (int or gid_t).
590 if test "${target}" = "${build}"; then
591 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
594 # This condition may need some tweaking. It should include all
595 # targets where the array type of the second argument of getgroups
596 # is int and the type of gid_t is not equivalent to int.
597 *-*-sunos* | *-*-ultrix*)
598 TARGET_GETGROUPS_T=int
601 TARGET_GETGROUPS_T=gid_t
605 AC_SUBST(TARGET_GETGROUPS_T)
607 gcc_AC_FUNC_PRINTF_PTR
612 *** UWIN may not be used as a host platform because
613 *** linking with posix.dll is not allowed by the GNU GPL])
616 # Under VMS, vfork works very different than on Unix. The standard test
617 # won't work, and it isn't easily adaptable. It makes more sense to
619 ac_cv_func_vfork_works=yes
623 AC_FUNC_MMAP_ANYWHERE
628 # We will need to find libiberty.h and ansidecl.h
629 saved_CFLAGS="$CFLAGS"
630 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
631 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
632 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
633 fprintf_unlocked strstr environ errno \
634 malloc realloc calloc free basename getopt clock, , ,[
635 #include "ansidecl.h"
636 #include "system.h"])
638 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
639 #include "ansidecl.h"
641 #ifdef HAVE_SYS_RESOURCE_H
642 #include <sys/resource.h>
646 gcc_AC_CHECK_DECLS(times, , ,[
647 #include "ansidecl.h"
649 #ifdef HAVE_SYS_TIMES_H
650 #include <sys/times.h>
654 # More time-related stuff.
655 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
657 #include "ansidecl.h"
659 #ifdef HAVE_SYS_TIMES_H
660 #include <sys/times.h>
662 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
663 if test $ac_cv_struct_tms = yes; then
664 AC_DEFINE(HAVE_STRUCT_TMS, 1,
665 [Define if <sys/times.h> defines struct tms.])
668 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
669 # revisit after autoconf 2.50.
670 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
672 #include "ansidecl.h"
674 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
675 if test $gcc_cv_type_clock_t = yes; then
676 AC_DEFINE(HAVE_CLOCK_T, 1,
677 [Define if <time.h> defines clock_t.])
680 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
681 CFLAGS="$saved_CFLAGS"
683 # mkdir takes a single argument on some systems.
684 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
694 build_install_headers_dir=install-headers-tar
699 host_truncate_target=
702 # Decode the host machine, then the target machine.
703 # For the host machine, we save the xm_file variable as host_xm_file;
704 # then we decode the target machine and forget everything else
705 # that came from the host machine.
706 for machine in $build $host $target; do
707 . ${srcdir}/config.gcc
710 extra_objs="${host_extra_objs} ${extra_objs}"
712 # Default the target-machine variables that were not explicitly set.
713 if test x"$tm_file" = x
714 then tm_file=$cpu_type/$cpu_type.h; fi
716 if test x"$extra_headers" = x
717 then extra_headers=; fi
719 if test x$md_file = x
720 then md_file=$cpu_type/$cpu_type.md; fi
722 if test x$out_file = x
723 then out_file=$cpu_type/$cpu_type.c; fi
725 if test x"$tmake_file" = x
726 then tmake_file=$cpu_type/t-$cpu_type
729 if test x"$dwarf2" = xyes
730 then tm_file="$tm_file tm-dwarf2.h"
733 if test x$float_format = x
734 then float_format=i64
737 if test $float_format = none
738 then float_h_file=Makefile.in
739 else float_h_file=float-$float_format.h
742 # Handle cpp installation.
743 if test x$enable_cpp != xno
745 tmake_file="$tmake_file t-install-cpp"
748 # Say what files are being used for the output code and MD file.
749 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
750 echo "Using \`$srcdir/config/$md_file' as machine description file."
752 # If any of the xm_file variables contain nonexistent files, warn
753 # about them and drop them.
756 for x in $build_xm_file; do
757 if test -f $srcdir/config/$x
759 else AC_MSG_WARN($srcdir/config/$x does not exist.)
765 for x in $host_xm_file; do
766 if test -f $srcdir/config/$x
768 else AC_MSG_WARN($srcdir/config/$x does not exist.)
774 for x in $xm_file; do
775 if test -f $srcdir/config/$x
777 else AC_MSG_WARN($srcdir/config/$x does not exist.)
783 for f in $tm_file; do
786 if test $count = ax; then
787 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
789 echo "Using the following target machine macro files:"
790 for f in $tm_file; do
791 echo " $srcdir/config/$f"
796 for f in $host_xm_file; do
799 if test $count = a; then
801 elif test $count = ax; then
802 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
804 echo "Using the following host machine macro files:"
805 for f in $host_xm_file; do
806 echo " $srcdir/config/$f"
810 if test "$host_xm_file" != "$build_xm_file"; then
812 for f in $build_xm_file; do
815 if test $count = a; then
817 elif test $count = ax; then
818 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
820 echo "Using the following build machine macro files:"
821 for f in $build_xm_file; do
822 echo " $srcdir/config/$f"
827 if test x$thread_file = x; then
828 if test x$target_thread_file != x; then
829 thread_file=$target_thread_file
835 # auto-host.h is the file containing items generated by autoconf and is
836 # the first file included by config.h.
837 # If host=build, it is correct to have hconfig include auto-host.h
838 # as well. If host!=build, we are in error and need to do more
839 # work to find out the build config parameters.
840 if test x$host = x$build
842 build_auto=auto-host.h
845 # We create a subdir, then run autoconf in the subdir.
846 # To prevent recursion we set host and build for the new
847 # invocation of configure to the build for this invocation
854 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
855 *) realsrcdir=../${srcdir};;
857 saved_CFLAGS="${CFLAGS}"
858 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
859 ${realsrcdir}/configure \
860 --target=$target --host=$build --build=$build
861 CFLAGS="${saved_CFLAGS}"
863 # We just finished tests for the build machine, so rename
864 # the file auto-build.h in the gcc directory.
865 mv auto-host.h ../auto-build.h
868 build_auto=auto-build.h
873 tm_file="${tm_file} defaults.h"
874 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
875 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
876 xm_file="ansidecl.h ${xm_file} ${tm_file}"
878 # Truncate the target if necessary
879 if test x$host_truncate_target != x; then
880 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
883 # Get the version trigger filename from the toplevel
884 if test "${with_gcc_version_trigger+set}" = set; then
885 gcc_version_trigger=$with_gcc_version_trigger
887 gcc_version_trigger=${srcdir}/version.c
890 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
891 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
893 # Compile in configure arguments.
894 if test -f configargs.h ; then
895 # Being re-configured.
896 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
897 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
899 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
901 cat > configargs.h <<EOF
902 /* Generated automatically. */
903 static const char configuration_arguments[] = "$gcc_config_arguments";
904 static const char thread_model[] = "$thread_file";
908 # Internationalization
910 VERSION="$gcc_version"
911 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
912 [Define to the name of the distribution.])
913 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
914 [Define to the version of the distribution.])
918 # Enable NLS support by default
920 [ --enable-nls use Native Language Support (default)],
923 # if cross compiling, disable NLS support.
924 # It's not worth the trouble, at least for now.
926 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
927 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
933 # Windows32 Registry support for specifying GCC installation paths.
934 AC_ARG_ENABLE(win32-registry,
935 [ --disable-win32-registry
936 disable lookup of installation paths in the
937 Registry on Windows hosts
938 --enable-win32-registry enable registry lookup (default)
939 --enable-win32-registry=KEY
940 use KEY instead of GCC version as the last portion
941 of the registry key],,)
943 win32 | pe | cygwin* | mingw32* | uwin*)
944 AC_MSG_CHECKING(whether windows registry support is requested)
945 if test "x$enable_win32_registry" != xno; then
946 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
947 [Define to 1 if installation paths should be looked up in Windows32
948 Registry. Ignored on non windows32 hosts.])
950 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
955 # Check if user specified a different registry key.
956 case "x${enable_win32_registry}" in
959 gcc_cv_win32_registry_key="$VERSION"
962 # no registry lookup.
963 gcc_cv_win32_registry_key=''
966 # user-specified key.
967 gcc_cv_win32_registry_key="$enable_win32_registry"
971 if test "x$enable_win32_registry" != xno; then
972 AC_MSG_CHECKING(registry key on windows hosts)
973 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
974 [Define to be the last portion of registry key on windows hosts.])
975 AC_MSG_RESULT($gcc_cv_win32_registry_key)
980 # Get an absolute path to the GCC top-level source directory
986 # Conditionalize the makefile for this host machine.
987 # Make-host contains the concatenation of all host makefile fragments
988 # [there can be more than one]. This file is built by configure.frag.
989 host_overrides=Make-host
991 for f in .. ${host_xmake_file}
993 if test -f ${srcdir}/config/$f
995 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
999 # Conditionalize the makefile for this target machine.
1000 # Make-target contains the concatenation of all host makefile fragments
1001 # [there can be more than one]. This file is built by configure.frag.
1002 target_overrides=Make-target
1004 for f in .. ${tmake_file}
1006 if test -f ${srcdir}/config/$f
1008 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1012 # If the host doesn't support symlinks, modify CC in
1013 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1014 # Otherwise, we can use "CC=$(CC)".
1016 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1018 cc_set_by_configure="\$(CC)"
1019 quoted_cc_set_by_configure="\$(CC)"
1020 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1023 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1025 symbolic_link="cp -p"
1029 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1030 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1031 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1035 out_object_file=`basename $out_file .c`.o
1038 for f in $tm_file; do
1041 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1043 tm_file_list="${tm_file_list} $f" ;;
1044 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1049 for f in $tm_p_file; do
1050 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1054 for f in $host_xm_file; do
1057 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1058 auto-host.h | defaults.h )
1059 host_xm_file_list="${host_xm_file_list} $f" ;;
1060 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1065 for f in $build_xm_file; do
1068 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1069 auto-build.h | auto-host.h | defaults.h )
1070 build_xm_file_list="${build_xm_file_list} $f" ;;
1071 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1075 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1076 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1077 CROSS= AC_SUBST(CROSS)
1078 ALL=all.internal AC_SUBST(ALL)
1079 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1080 if test x$host != x$target
1082 CROSS="-DCROSS_COMPILE"
1084 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1087 # If this is a cross-compiler that does not
1088 # have its own set of headers then define
1091 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1092 # This prevents libgcc2 from containing any code which requires libc
1095 if [test x$host != x$target] && [test x$with_headers = x]; then
1096 inhibit_libc=-Dinhibit_libc
1098 if [test x$with_newlib = xyes]; then
1099 inhibit_libc=-Dinhibit_libc
1102 AC_SUBST(inhibit_libc)
1104 # When building gcc with a cross-compiler, we need to adjust things so
1105 # that the generator programs are still built with the native compiler.
1106 # Also, we cannot run fixincludes or fix-header.
1107 # Note that the terminology here is wrong; it should be BUILD_* throughout.
1110 # These are the normal (build=host) settings:
1111 HOST_PREFIX= AC_SUBST(HOST_PREFIX)
1112 HOST_PREFIX_1=ignore- AC_SUBST(HOST_PREFIX_1)
1113 HOST_CC='$(CC)' AC_SUBST(HOST_CC)
1114 HOST_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(HOST_CFLAGS)
1116 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1117 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1119 # And these apply if build != host.
1120 if test x$build != x$host
1123 HOST_PREFIX_1=build-
1124 HOST_CC='$(CC_FOR_BUILD)'
1125 HOST_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1131 # Expand extra_headers to include complete path.
1132 # This substitutes for lots of t-* files.
1134 if test "x$extra_headers" = x
1137 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1138 for file in $extra_headers;
1140 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1144 if test x$use_collect2 = xno; then
1148 # Add a definition of USE_COLLECT2 if system wants one.
1149 if test x$use_collect2 != x
1151 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1152 xm_defines="${xm_defines} USE_COLLECT2"
1155 # If we have gas in the build tree, make a link to it.
1156 if test -f ../gas/Makefile; then
1157 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1160 # If we have nm and objdump in the build tree, make a link to them.
1161 if test -f ../binutils/Makefile; then
1162 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1163 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1166 # If we have ld in the build tree, make a link to it.
1167 if test -f ../ld/Makefile; then
1168 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1171 # Figure out what assembler we will be using.
1172 AC_MSG_CHECKING(what assembler to use)
1174 gcc_cv_gas_major_version=
1175 gcc_cv_gas_minor_version=
1176 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1177 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1178 if test -x "$DEFAULT_ASSEMBLER"; then
1179 gcc_cv_as="$DEFAULT_ASSEMBLER"
1180 elif test -x "$AS"; then
1182 elif test -x as$host_exeext; then
1183 # Build using assembler in the current directory.
1184 gcc_cv_as=./as$host_exeext
1185 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1186 # Single tree build which includes gas.
1187 for f in $gcc_cv_as_bfd_srcdir/configure $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1190 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1192 if test x$gcc_cv_gas_version != x; then
1197 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1198 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1202 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1204 # Search the same directories that the installed compiler will
1205 # search. Else we may find the wrong assembler and lose. If we
1206 # do not find a suitable assembler binary, then try the user's
1209 # Also note we have to check MD_EXEC_PREFIX before checking the
1210 # user's path. Unfortunately, there is no good way to get at the
1211 # value of MD_EXEC_PREFIX here. So we do a brute force search
1212 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1213 # to be fixed as part of the make/configure rewrite too.
1215 if test "x$exec_prefix" = xNONE; then
1216 if test "x$prefix" = xNONE; then
1217 test_prefix=/usr/local
1222 test_prefix=$exec_prefix
1225 # If the loop below does not find an assembler, then use whatever
1226 # one we can find in the users's path.
1228 gcc_cv_as=as$host_exeext
1230 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1231 $test_prefix/lib/gcc-lib/$target \
1232 /usr/lib/gcc/$target/$gcc_version \
1233 /usr/lib/gcc/$target \
1234 $test_prefix/$target/bin/$target/$gcc_version \
1235 $test_prefix/$target/bin \
1240 /bsd43/usr/lib/cmplrs/cc \
1241 /usr/cross64/usr/bin \
1242 /usr/lib/cmplrs/cc \
1243 /sysv/usr/lib/cmplrs/cc \
1244 /svr4/usr/lib/cmplrs/cc \
1247 for dir in $test_dirs; do
1248 if test -f $dir/as$host_exeext; then
1249 gcc_cv_as=$dir/as$host_exeext
1254 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1255 AC_MSG_RESULT("newly built gas")
1257 AC_MSG_RESULT($gcc_cv_as)
1260 # Figure out what nm we will be using.
1261 AC_MSG_CHECKING(what nm to use)
1262 if test -x nm$host_exeext; then
1263 gcc_cv_nm=./nm$host_exeext
1264 elif test x$host = x$target; then
1266 gcc_cv_nm=nm$host_exeext
1268 AC_MSG_RESULT($gcc_cv_nm)
1270 # Figure out what objdump we will be using.
1271 AC_MSG_CHECKING(what objdump to use)
1272 if test -x objdump$host_exeext; then
1273 gcc_cv_objdump=./objdump$host_exeext
1274 elif test x$host = x$target; then
1276 gcc_cv_objdump=objdump$host_exeext
1278 AC_MSG_RESULT($gcc_cv_objdump)
1280 # Figure out what assembler alignment features are present.
1281 AC_MSG_CHECKING(assembler alignment features)
1282 gcc_cv_as_alignment_features=none
1283 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1284 # Gas version 2.6 and later support for .balign and .p2align.
1285 # bytes to skip when using .p2align.
1286 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1287 gcc_cv_as_alignment_features=".balign and .p2align"
1288 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1290 # Gas version 2.8 and later support specifying the maximum
1291 # bytes to skip when using .p2align.
1292 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1293 gcc_cv_as_alignment_features=".p2align including maximum skip"
1294 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1296 elif test x$gcc_cv_as != x; then
1297 # Check if we have .balign and .p2align
1298 echo ".balign 4" > conftest.s
1299 echo ".p2align 2" >> conftest.s
1300 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1301 gcc_cv_as_alignment_features=".balign and .p2align"
1302 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1304 rm -f conftest.s conftest.o
1305 # Check if specifying the maximum bytes to skip when
1306 # using .p2align is supported.
1307 echo ".p2align 4,,7" > conftest.s
1308 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1309 gcc_cv_as_alignment_features=".p2align including maximum skip"
1310 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1312 rm -f conftest.s conftest.o
1314 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1316 AC_MSG_CHECKING(assembler subsection support)
1317 gcc_cv_as_subsections=no
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 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1320 gcc_cv_as_subsections="working .subsection -1"
1322 elif test x$gcc_cv_as != x; then
1323 # Check if we have .subsection
1324 echo ".subsection 1" > conftest.s
1325 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1326 gcc_cv_as_subsections=".subsection"
1327 if test x$gcc_cv_nm != x; then
1328 cat > conftest.s <<EOF
1329 conftest_label1: .word 0
1331 conftest_label2: .word 0
1334 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1335 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1336 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1337 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1340 gcc_cv_as_subsections="working .subsection -1"
1345 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1347 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1348 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1349 [Define if your assembler supports .subsection and .subsection -1 starts
1350 emitting at the beginning of your section.])
1352 AC_MSG_RESULT($gcc_cv_as_subsections)
1354 AC_MSG_CHECKING(assembler weak support)
1356 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1357 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1358 gcc_cv_as_weak="yes"
1360 elif test x$gcc_cv_as != x; then
1361 # Check if we have .weak
1362 echo " .weak foobar" > conftest.s
1363 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1364 gcc_cv_as_weak="yes"
1366 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1368 if test x"$gcc_cv_as_weak" = xyes; then
1369 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1371 AC_MSG_RESULT($gcc_cv_as_weak)
1373 AC_MSG_CHECKING(assembler hidden support)
1375 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1376 if test "$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
1377 gcc_cv_as_hidden="yes"
1379 elif test x$gcc_cv_as != x; then
1380 # Check if we have .hidden
1381 echo " .hidden foobar" > conftest.s
1382 echo "foobar:" >> conftest.s
1383 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1384 gcc_cv_as_hidden="yes"
1386 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1388 if test x"$gcc_cv_as_hidden" = xyes; then
1389 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1390 [Define if your assembler supports .hidden.])
1392 AC_MSG_RESULT($gcc_cv_as_hidden)
1394 AC_MSG_CHECKING(assembler leb128 support)
1396 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1397 if test "$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
1398 gcc_cv_as_leb128="yes"
1400 elif test x$gcc_cv_as != x; then
1401 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1402 cat > conftest.s <<EOF
1410 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1411 gcc_cv_as_leb128="yes"
1413 # GAS versions before 2.11 do not support uleb128,
1414 # despite appearing to.
1415 # ??? There exists an elf-specific test that will crash
1416 # the assembler. Perhaps it's better to figure out whether
1417 # arbitrary sections are supported and try the test.
1418 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1419 if echo "$as_ver" | grep GNU > /dev/null; then
1421 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1422 as_major=`echo $as_ver | sed 's/\..*//'`
1423 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1425 if test $as_major -eq 2 -a $as_minor -lt 11; then
1426 gcc_cv_as_leb128="no"
1430 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1432 if test x"$gcc_cv_as_leb128" = xyes; then
1433 AC_DEFINE(HAVE_AS_LEB128, 1,
1434 [Define if your assembler supports .uleb128.])
1436 AC_MSG_RESULT($gcc_cv_as_leb128)
1438 AC_MSG_CHECKING(assembler eh_frame optimization)
1439 gcc_cv_as_eh_frame=no
1440 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1441 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1442 gcc_cv_as_eh_frame="yes"
1444 elif test x$gcc_cv_as != x; then
1445 # Check if this is GAS.
1446 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1447 rm -f a.out 2> /dev/null
1448 if echo "$as_ver" | grep GNU > /dev/null; then
1449 # Versions up to and including 2.11.0 may mis-optimize
1450 # .eh_frame data. Try something.
1451 cat > conftest.s <<EOF
1458 .section .eh_frame,"aw",@progbits
1460 .4byte .LECIE1-.LSCIE1
1474 .4byte .LEFDE1-.LASFDE1
1476 .4byte .LASFDE1-__FRAME_BEGIN__
1485 cat > conftest.lit <<EOF
1486 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1487 0010 01000000 12000000 18000000 00000000 ................
1488 0020 08000000 04080000 0044 .........D
1490 cat > conftest.big <<EOF
1491 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1492 0010 00000001 00000012 00000018 00000000 ................
1493 0020 00000008 04000000 0844 .........D
1495 # If the assembler didn't choke, and we can objdump,
1496 # and we got the correct data, then succeed.
1497 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1498 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1499 | tail -3 > conftest.got \
1500 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1501 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1503 gcc_cv_as_eh_frame="yes"
1505 gcc_cv_as_eh_frame="bad"
1506 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1507 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1508 [Define if your assembler mis-optimizes .eh_frame data.])
1514 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1516 AC_MSG_CHECKING(assembler section merging support)
1517 gcc_cv_as_shf_merge=no
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 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1520 gcc_cv_as_shf_merge=yes
1522 elif test x$gcc_cv_as != x; then
1523 # Check if we support SHF_MERGE sections
1524 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1525 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1526 gcc_cv_as_shf_merge=yes
1528 rm -f conftest.s conftest.o
1530 if test x"$gcc_cv_as_shf_merge" = xyes; then
1531 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1532 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1534 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1538 AC_CACHE_CHECK([assembler .register pseudo-op support],
1539 gcc_cv_as_register_pseudo_op, [
1540 gcc_cv_as_register_pseudo_op=unknown
1541 if test x$gcc_cv_as != x; then
1542 # Check if we have .register
1543 echo ".register %g2, #scratch" > conftest.s
1544 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1545 gcc_cv_as_register_pseudo_op=yes
1547 gcc_cv_as_register_pseudo_op=no
1549 rm -f conftest.s conftest.o
1552 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1553 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1554 [Define if your assembler supports .register.])
1557 AC_CACHE_CHECK([assembler supports -relax],
1558 gcc_cv_as_relax_opt, [
1559 gcc_cv_as_relax_opt=unknown
1560 if test x$gcc_cv_as != x; then
1561 # Check if gas supports -relax
1562 echo ".text" > conftest.s
1563 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1564 gcc_cv_as_relax_opt=yes
1566 gcc_cv_as_relax_opt=no
1568 rm -f conftest.s conftest.o
1571 if test "x$gcc_cv_as_relax_opt" = xyes; then
1572 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1573 [Define if your assembler supports -relax option.])
1578 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1579 gcc_cv_as_flags64, [
1580 if test -n "$gcc_cv_as"; then
1581 echo ".xword foo" > conftest.s
1582 gcc_cv_as_flags64=no
1583 for flag in "-xarch=v9" "-64 -Av9"; do
1584 if $gcc_cv_as $flag -o conftest.o conftest.s \
1585 > /dev/null 2>&1; then
1586 gcc_cv_as_flags64=$flag
1590 rm -f conftest.s conftest.o
1592 if test "$gas" = yes; then
1593 gcc_cv_as_flags64="-64 -Av9"
1595 gcc_cv_as_flags64="-xarch=v9"
1599 if test "x$gcc_cv_as_flags64" = xno; then
1601 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1602 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1605 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1606 [Define if the assembler supports 64bit sparc.])
1609 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1613 if test "x$gcc_cv_as_flags64" != xno; then
1614 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1615 gcc_cv_as_offsetable_lo10, [
1616 gcc_cv_as_offsetable_lo10=unknown
1617 if test "x$gcc_cv_as" != x; then
1618 # Check if assembler has offsetable %lo()
1619 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1620 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1621 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1623 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1624 > /dev/null 2>&1; then
1625 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1626 gcc_cv_as_offsetable_lo10=no
1628 gcc_cv_as_offsetable_lo10=yes
1631 gcc_cv_as_offsetable_lo10=no
1633 rm -f conftest.s conftest.o conftest1.s conftest1.o
1636 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1637 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1638 [Define if your assembler supports offsetable %lo().])
1645 i[34567]86-*-* | x86_64-*-*)
1647 AC_MSG_CHECKING(assembler instructions)
1648 gcc_cv_as_instructions=
1649 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1650 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1651 gcc_cv_as_instructions="filds fists"
1653 elif test x$gcc_cv_as != x; then
1654 set "filds fists" "filds mem; fists mem"
1657 echo "$2" > conftest.s
1658 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1659 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1663 rm -f conftest.s conftest.o
1665 if test x"$gcc_cv_as_instructions" != x; then
1666 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1668 AC_MSG_RESULT($gcc_cv_as_instructions)
1670 AC_MSG_CHECKING(assembler GOTOFF in data directives)
1671 gcc_cv_as_gotoff_in_data=no
1672 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1674 if test "$gcc_cv_gas_major_version" -eq 2 \
1675 -a "$gcc_cv_gas_minor_version" -ge 11 \
1676 -o "$gcc_cv_gas_major_version" -gt 2; then
1677 gcc_cv_as_gotoff_in_data=yes
1679 elif test x$gcc_cv_as != x; then
1680 cat > conftest.s <<EOF
1687 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1688 gcc_cv_as_gotoff_in_data=yes
1691 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
1692 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
1693 [Define true if the assembler supports '.long foo@GOTOFF'.])
1694 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
1698 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1699 gcc_cv_as_dwarf2_debug_line=no
1700 # ??? Not all targets support dwarf2 debug_line, even within a version
1701 # of gas. Moreover, we need to emit a valid instruction to trigger any
1702 # info to the output file. So, as supported targets are added to gas 2.11,
1703 # add some instruction here to (also) show we expect this might work.
1704 # ??? Once 2.11 is released, probably need to add first known working
1705 # version to the per-target configury.
1707 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-*)
1714 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1716 if test "$gcc_cv_gas_major_version" -eq 2 \
1717 -a "$gcc_cv_gas_minor_version" -ge 11 \
1718 -o "$gcc_cv_gas_major_version" -gt 2 \
1719 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1720 && test x"$insn" != x ; then
1721 gcc_cv_as_dwarf2_debug_line="yes"
1723 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1724 echo ' .file 1 "conftest.s"' > conftest.s
1725 echo ' .loc 1 3 0' >> conftest.s
1726 echo " $insn" >> conftest.s
1727 # ??? This fails with non-gnu grep.
1728 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1729 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1730 # The .debug_line file table must be in the exact order that
1731 # we specified the files, since these indices are also used
1732 # by DW_AT_decl_file. Approximate this test by testing if
1733 # the assembler bitches if the same index is assigned twice.
1734 echo ' .file 1 "foo.s"' > conftest.s
1735 echo ' .file 1 "bar.s"' >> conftest.s
1736 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
1738 gcc_cv_as_dwarf2_debug_line="no"
1740 gcc_cv_as_dwarf2_debug_line="yes"
1743 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1745 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1746 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1747 [Define if your assembler supports dwarf2 .file/.loc directives,
1748 and preserves file table indices exactly as given.])
1750 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1752 AC_MSG_CHECKING(assembler --gdwarf2 support)
1753 gcc_cv_as_gdwarf2_flag=no
1754 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1756 if test "$gcc_cv_gas_major_version" -eq 2 \
1757 -a "$gcc_cv_gas_minor_version" -ge 11 \
1758 -o "$gcc_cv_gas_major_version" -gt 2 \
1759 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1760 && test x"$insn" != x ; then
1761 gcc_cv_as_gdwarf2_debug_flag="yes"
1763 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1764 echo '' > conftest.s
1765 # ??? This fails with non-gnu grep.
1766 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
1768 gcc_cv_as_gdwarf2_flag="yes"
1770 rm -f conftest.s conftest.o
1772 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
1773 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
1774 [Define if your assembler supports the --gdwarf2 option.])
1776 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
1778 AC_MSG_CHECKING(assembler --gstabs support)
1779 gcc_cv_as_gstabs_flag=no
1780 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1782 if test "$gcc_cv_gas_major_version" -eq 2 \
1783 -a "$gcc_cv_gas_minor_version" -ge 11 \
1784 -o "$gcc_cv_gas_major_version" -gt 2 \
1785 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1786 && test x"$insn" != x ; then
1787 gcc_cv_as_gstabs_debug_flag="yes"
1789 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1790 echo '' > conftest.s
1791 # ??? This fails with non-gnu grep.
1792 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
1793 gcc_cv_as_gstabs_flag="yes"
1795 rm -f conftest.s conftest.o
1797 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
1798 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
1799 [Define if your assembler supports the --gstabs option.])
1801 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
1803 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
1804 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
1807 # Figure out what language subdirectories are present.
1808 # Look if the user specified --enable-languages="..."; if not, use
1809 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1811 # NB: embedded tabs in this IF block -- do not untabify
1812 if test x"${enable_languages+set}" != xset; then
1813 if test x"${LANGUAGES+set}" = xset; then
1814 enable_languages="${LANGUAGES}"
1815 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
1818 enable_languages=all
1821 if test x"${enable_languages}" = x ||
1822 test x"${enable_languages}" = xyes;
1824 AC_MSG_ERROR([--enable-languages needs at least one language argument])
1827 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1829 # First scan to see if an enabled language requires some other language.
1830 # We assume that a given config-lang.in will list all the language
1831 # front ends it requires, even if some are required indirectly.
1832 for lang in ${srcdir}/*/config-lang.in ..
1837 # The odd quoting in the next line works around
1838 # an apparent bug in bash 1.12 on linux.
1840 ${srcdir}/[*]/config-lang.in)
1843 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1844 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
1845 for other in $this_lang_requires
1847 case ,${enable_languages}, in
1853 enable_languages="$enable_languages,$other"
1863 for lang in ${srcdir}/*/config-lang.in ..
1867 # The odd quoting in the next line works around
1868 # an apparent bug in bash 1.12 on linux.
1870 ${srcdir}/[*]/config-lang.in) ;;
1872 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1873 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
1874 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
1875 if test "x$lang_alias" = x
1877 echo "$lang doesn't set \$language." 1>&2
1880 case ${build_by_default},${enable_languages}, in
1881 *,$lang_alias,*) add_this_lang=yes ;;
1882 no,*) add_this_lang=no ;;
1883 *,all,*) add_this_lang=yes ;;
1884 *) add_this_lang=no ;;
1886 if test x"${add_this_lang}" = xyes; then
1888 ${srcdir}/ada/config-lang.in)
1889 if test x$have_gnat = xyes ; then
1890 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1894 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1903 # Make gthr-default.h if we have a thread file.
1905 if test $thread_file != single; then
1906 rm -f gthr-default.h
1907 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1908 gthread_flags=-DHAVE_GTHR_DEFAULT
1910 AC_SUBST(gthread_flags)
1912 # Find out what GC implementation we want, or may, use.
1914 [ --with-gc={simple,page} choose the garbage collection mechanism to use
1921 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1926 echo "Using $GGC for garbage collection."
1928 # Use the system's zlib library.
1930 zlibinc="-I\$(srcdir)/../zlib"
1931 AC_ARG_WITH(system-zlib,
1932 [ --with-system-zlib use installed libz],
1939 dnl Very limited version of automake's enable-maintainer-mode
1941 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1942 dnl maintainer-mode is disabled by default
1943 AC_ARG_ENABLE(maintainer-mode,
1944 [ --enable-maintainer-mode
1945 enable make rules and dependencies not useful
1946 (and sometimes confusing) to the casual installer],
1947 maintainer_mode=$enableval,
1950 AC_MSG_RESULT($maintainer_mode)
1952 if test "$maintainer_mode" = "yes"; then
1959 # With Setjmp/Longjmp based exception handling.
1960 AC_ARG_ENABLE(sjlj-exceptions,
1961 [ --enable-sjlj-exceptions
1962 arrange to use setjmp/longjmp exception handling],
1963 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1964 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1965 [Define 0/1 to force the choice for exception handling model.])])
1967 # Make empty files to contain the specs and options for each language.
1968 # Then add #include lines to for a compiler that has specs and/or options.
1973 rm -f specs.h options.h gencheck.h
1974 touch specs.h options.h gencheck.h
1975 for subdir in . $subdirs
1977 if test -f $srcdir/$subdir/lang-specs.h; then
1978 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1979 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1981 if test -f $srcdir/$subdir/lang-options.h; then
1982 echo "#include \"$subdir/lang-options.h\"" >>options.h
1983 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1985 if test -f $srcdir/$subdir/$subdir-tree.def; then
1986 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1987 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1991 # These (without "all_") are set in each config-lang.in.
1992 # `language' must be a single word so is spelled singularly.
1998 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc'
1999 # List of language makefile fragments.
2004 # Add the language fragments.
2005 # Languages are added via two mechanisms. Some information must be
2006 # recorded in makefile variables, these are defined in config-lang.in.
2007 # We accumulate them and plug them into the main Makefile.
2008 # The other mechanism is a set of hooks for each of the main targets
2009 # like `clean', `install', etc.
2011 language_fragments="Make-lang"
2012 language_hooks="Make-hooks"
2014 for s in .. $subdirs
2026 . ${srcdir}/$s/config-lang.in
2027 if test "x$language" = x
2029 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2032 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2033 if test -f ${srcdir}/$s/Makefile.in
2034 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2036 all_languages="$all_languages $language"
2037 if test "x$boot_language" = xyes
2039 all_boot_languages="$all_boot_languages $language"
2041 all_compilers="$all_compilers $compilers"
2042 all_stagestuff="$all_stagestuff $stagestuff"
2043 all_diff_excludes="$all_diff_excludes $diff_excludes"
2044 all_headers="$all_headers $headers"
2045 all_outputs="$all_outputs $outputs"
2046 all_lib2funcs="$all_lib2funcs $lib2funcs"
2051 for language in .. $all_languages
2053 if test $language != ".."
2055 check_languages="$check_languages check-$language"
2059 # Since we can't use `::' targets, we link each language in
2060 # with a set of hooks, reached indirectly via lang.${target}.
2064 target_list="all.build all.cross start.encap rest.encap \
2065 info dvi generated-manpages \
2066 install-normal install-common install-info install-man \
2068 mostlyclean clean distclean extraclean maintainer-clean \
2069 stage1 stage2 stage3 stage4"
2070 for t in $target_list
2073 for lang in .. $all_languages
2075 if test $lang != ".."; then
2079 echo "lang.$t: $x" >> Make-hooks
2084 echo "dir ." > .gdbinit
2085 echo "dir ${srcdir}" >> .gdbinit
2086 if test x$gdb_needs_out_file_path = xyes
2088 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2090 if test "x$subdirs" != x; then
2093 echo "dir ${srcdir}/$s" >> .gdbinit
2096 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2098 # Define variables host_canonical and build_canonical
2099 # because some Cygnus local changes in the Makefile depend on them.
2100 build_canonical=${build}
2101 host_canonical=${host}
2103 if test "${host}" != "${target}" ; then
2104 target_subdir=${target_alias}/
2106 AC_SUBST(build_canonical)
2107 AC_SUBST(host_canonical)
2108 AC_SUBST(target_subdir)
2110 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2111 # absolute path for gcc_tooldir based on inserting the number of up-directory
2112 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2113 # $(libsubdir)/@(unlibsubdir) based path.
2114 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2115 # make and thus we'd get different behavior depending on where we built the
2117 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2118 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2120 changequote(<<, >>)dnl
2121 # An explanation of the sed strings:
2122 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2123 # -e 's|/$||' match a trailing forward slash and eliminates it
2124 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2125 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2127 # (*) Note this pattern overwrites the first character of the string
2128 # with a forward slash if one is not already present. This is not a
2129 # problem because the exact names of the sub-directories concerned is
2130 # unimportant, just the number of them matters.
2132 # The practical upshot of these patterns is like this:
2134 # prefix exec_prefix result
2135 # ------ ----------- ------
2137 # /foo/ /foo/bar ../
2138 # /foo /foo/bar/ ../
2139 # /foo/ /foo/bar/ ../
2140 # /foo /foo/bar/ugg ../../
2143 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2144 changequote([, ])dnl
2146 AC_SUBST(gcc_tooldir)
2149 # Find a directory in which to install a shared libgcc.
2151 AC_ARG_ENABLE(version-specific-runtime-libs,
2152 [ --enable-version-specific-runtime-libs
2153 specify that runtime libraries should be
2154 installed in a compiler-specific directory])
2156 AC_ARG_WITH(slibdir,
2157 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2158 slibdir="$with_slibdir",
2159 if test "${enable_version_specific_runtime_libs+set}" = set; then
2160 slibdir='$(libsubdir)'
2161 elif test "$host" != "$target"; then
2162 slibdir='$(build_tooldir)/lib'
2168 # Nothing to do for FLOAT_H, float_format already handled.
2172 # Process the language and host/target makefile fragments.
2173 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2175 # Substitute configuration variables
2177 AC_SUBST(all_boot_languages)
2178 AC_SUBST(all_compilers)
2179 AC_SUBST(all_diff_excludes)
2180 AC_SUBST(all_headers)
2181 AC_SUBST(all_lang_makefiles)
2182 AC_SUBST(all_languages)
2183 AC_SUBST(all_lib2funcs)
2184 AC_SUBST(all_stagestuff)
2185 AC_SUBST(build_exeext)
2186 AC_SUBST(build_install_headers_dir)
2187 AC_SUBST(build_xm_file_list)
2188 AC_SUBST(build_xm_file)
2189 AC_SUBST(build_xm_defines)
2190 AC_SUBST(check_languages)
2191 AC_SUBST(cc_set_by_configure)
2192 AC_SUBST(quoted_cc_set_by_configure)
2193 AC_SUBST(cpp_install_dir)
2194 AC_SUBST(dep_host_xmake_file)
2195 AC_SUBST(dep_tmake_file)
2196 AC_SUBST(extra_headers_list)
2197 AC_SUBST(extra_objs)
2198 AC_SUBST(extra_parts)
2199 AC_SUBST(extra_passes)
2200 AC_SUBST(extra_programs)
2201 AC_SUBST(float_h_file)
2202 AC_SUBST(gcc_config_arguments)
2203 AC_SUBST(gcc_gxx_include_dir)
2204 AC_SUBST(libstdcxx_incdir)
2205 AC_SUBST(gcc_version)
2206 AC_SUBST(gcc_version_full)
2207 AC_SUBST(gcc_version_trigger)
2208 AC_SUBST(host_exeext)
2209 AC_SUBST(host_extra_gcc_objs)
2210 AC_SUBST(host_xm_file_list)
2211 AC_SUBST(host_xm_file)
2212 AC_SUBST(host_xm_defines)
2214 AC_SUBST(lang_options_files)
2215 AC_SUBST(lang_specs_files)
2216 AC_SUBST(lang_tree_files)
2217 AC_SUBST(local_prefix)
2219 AC_SUBST(objc_boehm_gc)
2221 AC_SUBST(out_object_file)
2222 AC_SUBST(stage_prefix_set_by_configure)
2223 AC_SUBST(symbolic_link)
2224 AC_SUBST(thread_file)
2225 AC_SUBST(tm_file_list)
2227 AC_SUBST(tm_p_file_list)
2230 AC_SUBST(xm_defines)
2231 AC_SUBST(c_target_objs)
2232 AC_SUBST(cxx_target_objs)
2233 AC_SUBST(target_cpu_default)
2235 AC_SUBST_FILE(target_overrides)
2236 AC_SUBST_FILE(host_overrides)
2237 AC_SUBST_FILE(language_fragments)
2238 AC_SUBST_FILE(language_hooks)
2240 # Echo that links are built
2241 if test x$host = x$target
2249 if test x$host != x$build
2251 str3=" on a $build system"
2254 if test "x$str2" != x || test "x$str3" != x
2259 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2261 if test "x$str2" != x || test "x$str3" != x
2263 echo " ${str2}${str3}." 1>&2
2266 # Truncate the target if necessary
2267 if test x$host_truncate_target != x; then
2268 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2271 # Configure the subdirectories
2272 # AC_CONFIG_SUBDIRS($subdirs)
2274 # Create the Makefile
2275 # and configure language subdirectories
2276 AC_OUTPUT($all_outputs,
2278 case x$CONFIG_HEADERS in
2279 xauto-host.h:config.in)
2282 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2283 # bootstrapping and the installation procedure can still use
2284 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2285 # FLAGS_TO_PASS has been modified to solve the problem there.
2286 # This is virtually a duplicate of what happens in configure.lang; we do
2287 # an extra check to make sure this only happens if ln -s can be used.
2288 if test "$symbolic_link" = "ln -s"; then
2289 for d in .. ${subdirs} fixinc ; do
2290 if test $d != ..; then
2293 for t in stage1 stage2 stage3 stage4 include
2296 $symbolic_link ../$t $t 2>/dev/null
2302 # Avoid having to add intl to our include paths.
2303 if test -f intl/libintl.h; then
2304 echo creating libintl.h
2305 echo '#include "intl/libintl.h"' >libintl.h
2312 target_alias='${target_alias}'
2314 subdirs='${subdirs}'
2315 symbolic_link='${symbolic_link}'
2316 program_transform_set='${program_transform_set}'
2317 program_transform_name='${program_transform_name}'
2318 dep_host_xmake_file='${dep_host_xmake_file}'
2319 host_xmake_file='${host_xmake_file}'
2320 dep_tmake_file='${dep_tmake_file}'
2321 tmake_file='${tmake_file}'
2322 thread_file='${thread_file}'
2323 gcc_config_arguments='${gcc_config_arguments}'
2324 gcc_version='${gcc_version}'
2325 gcc_version_full='${gcc_version_full}'
2326 gcc_version_trigger='${gcc_version_trigger}'
2327 local_prefix='${local_prefix}'
2328 build_install_headers_dir='${build_install_headers_dir}'
2329 build_exeext='${build_exeext}'
2330 host_exeext='${host_exeext}'
2331 out_file='${out_file}'
2332 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
2333 SET_MAKE='${SET_MAKE}'
2334 target_list='${target_list}'
2335 target_overrides='${target_overrides}'
2336 host_overrides='${host_overrides}'
2337 cpp_install_dir='${cpp_install_dir}'