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])
617 AC_FUNC_MMAP_ANYWHERE
622 # We will need to find libiberty.h and ansidecl.h
623 saved_CFLAGS="$CFLAGS"
624 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
625 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
626 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
627 fprintf_unlocked strstr environ errno \
628 malloc realloc calloc free basename getopt clock, , ,[
629 #include "ansidecl.h"
630 #include "system.h"])
632 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
633 #include "ansidecl.h"
635 #ifdef HAVE_SYS_RESOURCE_H
636 #include <sys/resource.h>
640 gcc_AC_CHECK_DECLS(times, , ,[
641 #include "ansidecl.h"
643 #ifdef HAVE_SYS_TIMES_H
644 #include <sys/times.h>
648 # More time-related stuff.
649 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
651 #include "ansidecl.h"
653 #ifdef HAVE_SYS_TIMES_H
654 #include <sys/times.h>
656 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
657 if test $ac_cv_struct_tms = yes; then
658 AC_DEFINE(HAVE_STRUCT_TMS, 1,
659 [Define if <sys/times.h> defines struct tms.])
662 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
663 # revisit after autoconf 2.50.
664 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
666 #include "ansidecl.h"
668 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
669 if test $gcc_cv_type_clock_t = yes; then
670 AC_DEFINE(HAVE_CLOCK_T, 1,
671 [Define if <time.h> defines clock_t.])
674 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
675 CFLAGS="$saved_CFLAGS"
677 # mkdir takes a single argument on some systems.
678 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
688 build_install_headers_dir=install-headers-tar
693 host_truncate_target=
696 # Decode the host machine, then the target machine.
697 # For the host machine, we save the xm_file variable as host_xm_file;
698 # then we decode the target machine and forget everything else
699 # that came from the host machine.
700 for machine in $build $host $target; do
701 . ${srcdir}/config.gcc
704 extra_objs="${host_extra_objs} ${extra_objs}"
706 # Default the target-machine variables that were not explicitly set.
707 if test x"$tm_file" = x
708 then tm_file=$cpu_type/$cpu_type.h; fi
710 if test x"$extra_headers" = x
711 then extra_headers=; fi
713 if test x$md_file = x
714 then md_file=$cpu_type/$cpu_type.md; fi
716 if test x$out_file = x
717 then out_file=$cpu_type/$cpu_type.c; fi
719 if test x"$tmake_file" = x
720 then tmake_file=$cpu_type/t-$cpu_type
723 if test x"$dwarf2" = xyes
724 then tm_file="$tm_file tm-dwarf2.h"
727 if test x$float_format = x
728 then float_format=i64
731 if test $float_format = none
732 then float_h_file=Makefile.in
733 else float_h_file=float-$float_format.h
736 # Handle cpp installation.
737 if test x$enable_cpp != xno
739 tmake_file="$tmake_file t-install-cpp"
742 # Say what files are being used for the output code and MD file.
743 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
744 echo "Using \`$srcdir/config/$md_file' as machine description file."
746 # If any of the xm_file variables contain nonexistent files, warn
747 # about them and drop them.
750 for x in $build_xm_file; do
751 if test -f $srcdir/config/$x
753 else AC_MSG_WARN($srcdir/config/$x does not exist.)
759 for x in $host_xm_file; do
760 if test -f $srcdir/config/$x
762 else AC_MSG_WARN($srcdir/config/$x does not exist.)
768 for x in $xm_file; do
769 if test -f $srcdir/config/$x
771 else AC_MSG_WARN($srcdir/config/$x does not exist.)
777 for f in $tm_file; do
780 if test $count = ax; then
781 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
783 echo "Using the following target machine macro files:"
784 for f in $tm_file; do
785 echo " $srcdir/config/$f"
790 for f in $host_xm_file; do
793 if test $count = a; then
795 elif test $count = ax; then
796 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
798 echo "Using the following host machine macro files:"
799 for f in $host_xm_file; do
800 echo " $srcdir/config/$f"
804 if test "$host_xm_file" != "$build_xm_file"; then
806 for f in $build_xm_file; do
809 if test $count = a; then
811 elif test $count = ax; then
812 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
814 echo "Using the following build machine macro files:"
815 for f in $build_xm_file; do
816 echo " $srcdir/config/$f"
821 if test x$thread_file = x; then
822 if test x$target_thread_file != x; then
823 thread_file=$target_thread_file
829 # auto-host.h is the file containing items generated by autoconf and is
830 # the first file included by config.h.
831 # If host=build, it is correct to have hconfig include auto-host.h
832 # as well. If host!=build, we are in error and need to do more
833 # work to find out the build config parameters.
834 if test x$host = x$build
836 build_auto=auto-host.h
839 # We create a subdir, then run autoconf in the subdir.
840 # To prevent recursion we set host and build for the new
841 # invocation of configure to the build for this invocation
848 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
849 *) realsrcdir=../${srcdir};;
851 saved_CFLAGS="${CFLAGS}"
852 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
853 ${realsrcdir}/configure \
854 --target=$target --host=$build --build=$build
855 CFLAGS="${saved_CFLAGS}"
857 # We just finished tests for the build machine, so rename
858 # the file auto-build.h in the gcc directory.
859 mv auto-host.h ../auto-build.h
862 build_auto=auto-build.h
867 tm_file="${tm_file} defaults.h"
868 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
869 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
870 xm_file="ansidecl.h ${xm_file} ${tm_file}"
872 # Truncate the target if necessary
873 if test x$host_truncate_target != x; then
874 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
877 # Get the version trigger filename from the toplevel
878 if test "${with_gcc_version_trigger+set}" = set; then
879 gcc_version_trigger=$with_gcc_version_trigger
881 gcc_version_trigger=${srcdir}/version.c
884 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
885 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
887 # Compile in configure arguments.
888 if test -f configargs.h ; then
889 # Being re-configured.
890 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
891 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
893 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
895 cat > configargs.h <<EOF
896 /* Generated automatically. */
897 static const char configuration_arguments[] = "$gcc_config_arguments";
898 static const char thread_model[] = "$thread_file";
902 # Internationalization
904 VERSION="$gcc_version"
905 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
906 [Define to the name of the distribution.])
907 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
908 [Define to the version of the distribution.])
912 # Enable NLS support by default
914 [ --enable-nls use Native Language Support (default)],
917 # if cross compiling, disable NLS support.
918 # It's not worth the trouble, at least for now.
920 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
921 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
927 # Windows32 Registry support for specifying GCC installation paths.
928 AC_ARG_ENABLE(win32-registry,
929 [ --disable-win32-registry
930 disable lookup of installation paths in the
931 Registry on Windows hosts
932 --enable-win32-registry enable registry lookup (default)
933 --enable-win32-registry=KEY
934 use KEY instead of GCC version as the last portion
935 of the registry key],,)
937 win32 | pe | cygwin* | mingw32* | uwin*)
938 AC_MSG_CHECKING(whether windows registry support is requested)
939 if test "x$enable_win32_registry" != xno; then
940 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
941 [Define to 1 if installation paths should be looked up in Windows32
942 Registry. Ignored on non windows32 hosts.])
944 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
949 # Check if user specified a different registry key.
950 case "x${enable_win32_registry}" in
953 gcc_cv_win32_registry_key="$VERSION"
956 # no registry lookup.
957 gcc_cv_win32_registry_key=''
960 # user-specified key.
961 gcc_cv_win32_registry_key="$enable_win32_registry"
965 if test "x$enable_win32_registry" != xno; then
966 AC_MSG_CHECKING(registry key on windows hosts)
967 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
968 [Define to be the last portion of registry key on windows hosts.])
969 AC_MSG_RESULT($gcc_cv_win32_registry_key)
974 # Get an absolute path to the GCC top-level source directory
980 # Conditionalize the makefile for this host machine.
981 # Make-host contains the concatenation of all host makefile fragments
982 # [there can be more than one]. This file is built by configure.frag.
983 host_overrides=Make-host
985 for f in .. ${host_xmake_file}
987 if test -f ${srcdir}/config/$f
989 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
993 # Conditionalize the makefile for this target machine.
994 # Make-target contains the concatenation of all host makefile fragments
995 # [there can be more than one]. This file is built by configure.frag.
996 target_overrides=Make-target
998 for f in .. ${tmake_file}
1000 if test -f ${srcdir}/config/$f
1002 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1006 # If the host doesn't support symlinks, modify CC in
1007 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1008 # Otherwise, we can use "CC=$(CC)".
1010 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1012 cc_set_by_configure="\$(CC)"
1013 quoted_cc_set_by_configure="\$(CC)"
1014 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1017 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1019 symbolic_link="cp -p"
1023 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1024 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1025 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1029 out_object_file=`basename $out_file .c`.o
1032 for f in $tm_file; do
1035 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1037 tm_file_list="${tm_file_list} $f" ;;
1038 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1043 for f in $tm_p_file; do
1044 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1048 for f in $host_xm_file; do
1051 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1052 auto-host.h | defaults.h )
1053 host_xm_file_list="${host_xm_file_list} $f" ;;
1054 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1059 for f in $build_xm_file; do
1062 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1063 auto-build.h | auto-host.h | defaults.h )
1064 build_xm_file_list="${build_xm_file_list} $f" ;;
1065 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1069 # Define macro CROSS_COMPILE in compilation
1070 # if this is a cross-compiler.
1071 # Also use all.cross instead of all.internal
1072 # and add cross-make to Makefile.
1073 cross_overrides="/dev/null"
1074 if test x$host != x$target
1076 cross_defines="CROSS=-DCROSS_COMPILE"
1077 cross_overrides="${topdir}/cross-make"
1080 # If this is a cross-compiler that does not
1081 # have its own set of headers then define
1084 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1085 # This prevents libgcc2 from containing any code which requires libc
1088 if [test x$host != x$target] && [test x$with_headers = x]; then
1089 inhibit_libc=-Dinhibit_libc
1091 if [test x$with_newlib = xyes]; then
1092 inhibit_libc=-Dinhibit_libc
1095 AC_SUBST(inhibit_libc)
1097 # When building gcc with a cross-compiler, we need to fix a few things.
1098 # This must come after cross-make as we want all.build to override
1100 build_overrides="/dev/null"
1101 if test x$build != x$host
1103 build_overrides="${topdir}/build-make"
1106 # Expand extra_headers to include complete path.
1107 # This substitutes for lots of t-* files.
1109 if test "x$extra_headers" = x
1112 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1113 for file in $extra_headers;
1115 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1119 if test x$use_collect2 = xno; then
1123 # Add a definition of USE_COLLECT2 if system wants one.
1124 if test x$use_collect2 != x
1126 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1127 xm_defines="${xm_defines} USE_COLLECT2"
1130 # If we have gas in the build tree, make a link to it.
1131 if test -f ../gas/Makefile; then
1132 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1135 # If we have nm and objdump in the build tree, make a link to them.
1136 if test -f ../binutils/Makefile; then
1137 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1138 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1141 # If we have ld in the build tree, make a link to it.
1142 if test -f ../ld/Makefile; then
1143 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1146 # Figure out what assembler we will be using.
1147 AC_MSG_CHECKING(what assembler to use)
1149 gcc_cv_gas_major_version=
1150 gcc_cv_gas_minor_version=
1151 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1152 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1153 if test -x "$DEFAULT_ASSEMBLER"; then
1154 gcc_cv_as="$DEFAULT_ASSEMBLER"
1155 elif test -x "$AS"; then
1157 elif test -x as$host_exeext; then
1158 # Build using assembler in the current directory.
1159 gcc_cv_as=./as$host_exeext
1160 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1161 # Single tree build which includes gas.
1162 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
1165 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1167 if test x$gcc_cv_gas_version != x; then
1172 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1173 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1177 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1179 # Search the same directories that the installed compiler will
1180 # search. Else we may find the wrong assembler and lose. If we
1181 # do not find a suitable assembler binary, then try the user's
1184 # Also note we have to check MD_EXEC_PREFIX before checking the
1185 # user's path. Unfortunately, there is no good way to get at the
1186 # value of MD_EXEC_PREFIX here. So we do a brute force search
1187 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1188 # to be fixed as part of the make/configure rewrite too.
1190 if test "x$exec_prefix" = xNONE; then
1191 if test "x$prefix" = xNONE; then
1192 test_prefix=/usr/local
1197 test_prefix=$exec_prefix
1200 # If the loop below does not find an assembler, then use whatever
1201 # one we can find in the users's path.
1203 gcc_cv_as=as$host_exeext
1205 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1206 $test_prefix/lib/gcc-lib/$target \
1207 /usr/lib/gcc/$target/$gcc_version \
1208 /usr/lib/gcc/$target \
1209 $test_prefix/$target/bin/$target/$gcc_version \
1210 $test_prefix/$target/bin \
1215 /bsd43/usr/lib/cmplrs/cc \
1216 /usr/cross64/usr/bin \
1217 /usr/lib/cmplrs/cc \
1218 /sysv/usr/lib/cmplrs/cc \
1219 /svr4/usr/lib/cmplrs/cc \
1222 for dir in $test_dirs; do
1223 if test -f $dir/as$host_exeext; then
1224 gcc_cv_as=$dir/as$host_exeext
1229 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1230 AC_MSG_RESULT("newly built gas")
1232 AC_MSG_RESULT($gcc_cv_as)
1235 # Figure out what nm we will be using.
1236 AC_MSG_CHECKING(what nm to use)
1237 if test -x nm$host_exeext; then
1238 gcc_cv_nm=./nm$host_exeext
1239 elif test x$host = x$target; then
1241 gcc_cv_nm=nm$host_exeext
1243 AC_MSG_RESULT($gcc_cv_nm)
1245 # Figure out what objdump we will be using.
1246 AC_MSG_CHECKING(what objdump to use)
1247 if test -x objdump$host_exeext; then
1248 gcc_cv_objdump=./objdump$host_exeext
1249 elif test x$host = x$target; then
1251 gcc_cv_objdump=objdump$host_exeext
1253 AC_MSG_RESULT($gcc_cv_objdump)
1255 # Figure out what assembler alignment features are present.
1256 AC_MSG_CHECKING(assembler alignment features)
1257 gcc_cv_as_alignment_features=none
1258 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1259 # Gas version 2.6 and later support for .balign and .p2align.
1260 # bytes to skip when using .p2align.
1261 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1262 gcc_cv_as_alignment_features=".balign and .p2align"
1263 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1265 # Gas version 2.8 and later support specifying the maximum
1266 # bytes to skip when using .p2align.
1267 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1268 gcc_cv_as_alignment_features=".p2align including maximum skip"
1269 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1271 elif test x$gcc_cv_as != x; then
1272 # Check if we have .balign and .p2align
1273 echo ".balign 4" > conftest.s
1274 echo ".p2align 2" >> conftest.s
1275 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1276 gcc_cv_as_alignment_features=".balign and .p2align"
1277 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1279 rm -f conftest.s conftest.o
1280 # Check if specifying the maximum bytes to skip when
1281 # using .p2align is supported.
1282 echo ".p2align 4,,7" > conftest.s
1283 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1284 gcc_cv_as_alignment_features=".p2align including maximum skip"
1285 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1287 rm -f conftest.s conftest.o
1289 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1291 AC_MSG_CHECKING(assembler subsection support)
1292 gcc_cv_as_subsections=no
1293 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1294 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1295 gcc_cv_as_subsections="working .subsection -1"
1297 elif test x$gcc_cv_as != x; then
1298 # Check if we have .subsection
1299 echo ".subsection 1" > conftest.s
1300 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1301 gcc_cv_as_subsections=".subsection"
1302 if test x$gcc_cv_nm != x; then
1303 cat > conftest.s <<EOF
1304 conftest_label1: .word 0
1306 conftest_label2: .word 0
1309 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1310 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1311 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1312 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1315 gcc_cv_as_subsections="working .subsection -1"
1320 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1322 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1323 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1324 [Define if your assembler supports .subsection and .subsection -1 starts
1325 emitting at the beginning of your section.])
1327 AC_MSG_RESULT($gcc_cv_as_subsections)
1329 AC_MSG_CHECKING(assembler weak support)
1331 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1332 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1333 gcc_cv_as_weak="yes"
1335 elif test x$gcc_cv_as != x; then
1336 # Check if we have .weak
1337 echo " .weak foobar" > conftest.s
1338 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1339 gcc_cv_as_weak="yes"
1341 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1343 if test x"$gcc_cv_as_weak" = xyes; then
1344 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1346 AC_MSG_RESULT($gcc_cv_as_weak)
1348 AC_MSG_CHECKING(assembler hidden support)
1350 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1351 if test "$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
1352 gcc_cv_as_hidden="yes"
1354 elif test x$gcc_cv_as != x; then
1355 # Check if we have .hidden
1356 echo " .hidden foobar" > conftest.s
1357 echo "foobar:" >> conftest.s
1358 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1359 gcc_cv_as_hidden="yes"
1361 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1363 if test x"$gcc_cv_as_hidden" = xyes; then
1364 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1365 [Define if your assembler supports .hidden.])
1367 AC_MSG_RESULT($gcc_cv_as_hidden)
1369 AC_MSG_CHECKING(assembler leb128 support)
1371 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1372 if test "$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
1373 gcc_cv_as_leb128="yes"
1375 elif test x$gcc_cv_as != x; then
1376 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1377 cat > conftest.s <<EOF
1385 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1386 gcc_cv_as_leb128="yes"
1388 # GAS versions before 2.11 do not support uleb128,
1389 # despite appearing to.
1390 # ??? There exists an elf-specific test that will crash
1391 # the assembler. Perhaps it's better to figure out whether
1392 # arbitrary sections are supported and try the test.
1393 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1394 if echo "$as_ver" | grep GNU > /dev/null; then
1396 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1397 as_major=`echo $as_ver | sed 's/\..*//'`
1398 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1400 if test $as_major -eq 2 -a $as_minor -lt 11; then
1401 gcc_cv_as_leb128="no"
1405 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1407 if test x"$gcc_cv_as_leb128" = xyes; then
1408 AC_DEFINE(HAVE_AS_LEB128, 1,
1409 [Define if your assembler supports .uleb128.])
1411 AC_MSG_RESULT($gcc_cv_as_leb128)
1413 AC_MSG_CHECKING(assembler eh_frame optimization)
1414 gcc_cv_as_eh_frame=no
1415 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1416 if test "$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
1417 gcc_cv_as_eh_frame="yes"
1419 elif test x$gcc_cv_as != x; then
1420 # Check if this is GAS.
1421 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1422 rm -f a.out 2> /dev/null
1423 if echo "$as_ver" | grep GNU > /dev/null; then
1424 # Versions up to and including 2.11.0 may mis-optimize
1425 # .eh_frame data. Try something.
1426 cat > conftest.s <<EOF
1433 .section .eh_frame,"aw",@progbits
1435 .4byte .LECIE1-.LSCIE1
1449 .4byte .LEFDE1-.LASFDE1
1451 .4byte .LASFDE1-__FRAME_BEGIN__
1460 cat > conftest.lit <<EOF
1461 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1462 0010 01000000 12000000 18000000 00000000 ................
1463 0020 08000000 04080000 0044 .........D
1465 cat > conftest.big <<EOF
1466 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1467 0010 00000001 00000012 00000018 00000000 ................
1468 0020 00000008 04000000 0844 .........D
1470 # If the assembler didn't choke, and we can objdump,
1471 # and we got the correct data, then succeed.
1472 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1473 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1474 | tail -3 > conftest.got \
1475 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1476 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1478 gcc_cv_as_eh_frame="yes"
1480 gcc_cv_as_eh_frame="bad"
1481 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1482 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1483 [Define if your assembler mis-optimizes .eh_frame data.])
1489 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1491 AC_MSG_CHECKING(assembler section merging support)
1492 gcc_cv_as_shf_merge=no
1493 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1494 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1495 gcc_cv_as_shf_merge=yes
1497 elif test x$gcc_cv_as != x; then
1498 # Check if we support SHF_MERGE sections
1499 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1500 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1501 gcc_cv_as_shf_merge=yes
1503 rm -f conftest.s conftest.o
1505 if test x"$gcc_cv_as_shf_merge" = xyes; then
1506 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1507 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1509 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1513 AC_CACHE_CHECK([assembler .register pseudo-op support],
1514 gcc_cv_as_register_pseudo_op, [
1515 gcc_cv_as_register_pseudo_op=unknown
1516 if test x$gcc_cv_as != x; then
1517 # Check if we have .register
1518 echo ".register %g2, #scratch" > conftest.s
1519 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1520 gcc_cv_as_register_pseudo_op=yes
1522 gcc_cv_as_register_pseudo_op=no
1524 rm -f conftest.s conftest.o
1527 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1528 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1529 [Define if your assembler supports .register.])
1532 AC_CACHE_CHECK([assembler supports -relax],
1533 gcc_cv_as_relax_opt, [
1534 gcc_cv_as_relax_opt=unknown
1535 if test x$gcc_cv_as != x; then
1536 # Check if gas supports -relax
1537 echo ".text" > conftest.s
1538 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1539 gcc_cv_as_relax_opt=yes
1541 gcc_cv_as_relax_opt=no
1543 rm -f conftest.s conftest.o
1546 if test "x$gcc_cv_as_relax_opt" = xyes; then
1547 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1548 [Define if your assembler supports -relax option.])
1553 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1554 gcc_cv_as_flags64, [
1555 if test -n "$gcc_cv_as"; then
1556 echo ".xword foo" > conftest.s
1557 gcc_cv_as_flags64=no
1558 for flag in "-xarch=v9" "-64 -Av9"; do
1559 if $gcc_cv_as $flag -o conftest.o conftest.s \
1560 > /dev/null 2>&1; then
1561 gcc_cv_as_flags64=$flag
1565 rm -f conftest.s conftest.o
1567 if test "$gas" = yes; then
1568 gcc_cv_as_flags64="-64 -Av9"
1570 gcc_cv_as_flags64="-xarch=v9"
1574 if test "x$gcc_cv_as_flags64" = xno; then
1576 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1577 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1580 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1581 [Define if the assembler supports 64bit sparc.])
1584 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1588 if test "x$gcc_cv_as_flags64" != xno; then
1589 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1590 gcc_cv_as_offsetable_lo10, [
1591 gcc_cv_as_offsetable_lo10=unknown
1592 if test "x$gcc_cv_as" != x; then
1593 # Check if assembler has offsetable %lo()
1594 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1595 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1596 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1598 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1599 > /dev/null 2>&1; then
1600 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1601 gcc_cv_as_offsetable_lo10=no
1603 gcc_cv_as_offsetable_lo10=yes
1606 gcc_cv_as_offsetable_lo10=no
1608 rm -f conftest.s conftest.o conftest1.s conftest1.o
1611 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1612 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1613 [Define if your assembler supports offsetable %lo().])
1620 i[34567]86-*-* | x86_64-*-*)
1622 AC_MSG_CHECKING(assembler instructions)
1623 gcc_cv_as_instructions=
1624 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1625 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1626 gcc_cv_as_instructions="filds fists"
1628 elif test x$gcc_cv_as != x; then
1629 set "filds fists" "filds mem; fists mem"
1632 echo "$2" > conftest.s
1633 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1634 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1638 rm -f conftest.s conftest.o
1640 if test x"$gcc_cv_as_instructions" != x; then
1641 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1643 AC_MSG_RESULT($gcc_cv_as_instructions)
1645 AC_MSG_CHECKING(assembler GOTOFF in data directives)
1646 gcc_cv_as_gotoff_in_data=no
1647 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1649 if test "$gcc_cv_gas_major_version" -eq 2 \
1650 -a "$gcc_cv_gas_minor_version" -ge 11 \
1651 -o "$gcc_cv_gas_major_version" -gt 2; then
1652 gcc_cv_as_gotoff_in_data=yes
1654 elif test x$gcc_cv_as != x; then
1655 cat > conftest.s <<EOF
1662 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1663 gcc_cv_as_gotoff_in_data=yes
1666 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
1667 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
1668 [Define true if the assembler supports '.long foo@GOTOFF'.])
1669 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
1673 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1674 gcc_cv_as_dwarf2_debug_line=no
1675 # ??? Not all targets support dwarf2 debug_line, even within a version
1676 # of gas. Moreover, we need to emit a valid instruction to trigger any
1677 # info to the output file. So, as supported targets are added to gas 2.11,
1678 # add some instruction here to (also) show we expect this might work.
1679 # ??? Once 2.11 is released, probably need to add first known working
1680 # version to the per-target configury.
1682 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-*)
1689 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1691 if test "$gcc_cv_gas_major_version" -eq 2 \
1692 -a "$gcc_cv_gas_minor_version" -ge 11 \
1693 -o "$gcc_cv_gas_major_version" -gt 2 \
1694 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1695 && test x"$insn" != x ; then
1696 gcc_cv_as_dwarf2_debug_line="yes"
1698 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1699 echo ' .file 1 "conftest.s"' > conftest.s
1700 echo ' .loc 1 3 0' >> conftest.s
1701 echo " $insn" >> conftest.s
1702 # ??? This fails with non-gnu grep.
1703 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1704 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1705 # The .debug_line file table must be in the exact order that
1706 # we specified the files, since these indices are also used
1707 # by DW_AT_decl_file. Approximate this test by testing if
1708 # the assembler bitches if the same index is assigned twice.
1709 echo ' .file 1 "foo.s"' > conftest.s
1710 echo ' .file 1 "bar.s"' >> conftest.s
1711 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
1713 gcc_cv_as_dwarf2_debug_line="no"
1715 gcc_cv_as_dwarf2_debug_line="yes"
1718 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1720 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1721 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1722 [Define if your assembler supports dwarf2 .file/.loc directives,
1723 and preserves file table indices exactly as given.])
1725 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1727 AC_MSG_CHECKING(assembler --gdwarf2 support)
1728 gcc_cv_as_gdwarf2_flag=no
1729 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1731 if test "$gcc_cv_gas_major_version" -eq 2 \
1732 -a "$gcc_cv_gas_minor_version" -ge 11 \
1733 -o "$gcc_cv_gas_major_version" -gt 2 \
1734 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1735 && test x"$insn" != x ; then
1736 gcc_cv_as_gdwarf2_debug_flag="yes"
1738 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1739 echo '' > conftest.s
1740 # ??? This fails with non-gnu grep.
1741 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
1743 gcc_cv_as_gdwarf2_flag="yes"
1745 rm -f conftest.s conftest.o
1747 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
1748 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
1749 [Define if your assembler supports the --gdwarf2 option.])
1751 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
1753 AC_MSG_CHECKING(assembler --gstabs support)
1754 gcc_cv_as_gstabs_flag=no
1755 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1757 if test "$gcc_cv_gas_major_version" -eq 2 \
1758 -a "$gcc_cv_gas_minor_version" -ge 11 \
1759 -o "$gcc_cv_gas_major_version" -gt 2 \
1760 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1761 && test x"$insn" != x ; then
1762 gcc_cv_as_gstabs_debug_flag="yes"
1764 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1765 echo '' > conftest.s
1766 # ??? This fails with non-gnu grep.
1767 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
1768 gcc_cv_as_gstabs_flag="yes"
1770 rm -f conftest.s conftest.o
1772 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
1773 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
1774 [Define if your assembler supports the --gstabs option.])
1776 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
1778 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
1779 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
1782 # Figure out what language subdirectories are present.
1783 # Look if the user specified --enable-languages="..."; if not, use
1784 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1786 # NB: embedded tabs in this IF block -- do not untabify
1787 if test x"${enable_languages+set}" != xset; then
1788 if test x"${LANGUAGES+set}" = xset; then
1789 enable_languages="${LANGUAGES}"
1790 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
1793 enable_languages=all
1796 if test x"${enable_languages}" = x ||
1797 test x"${enable_languages}" = xyes;
1799 AC_MSG_ERROR([--enable-languages needs at least one language argument])
1802 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1804 # First scan to see if an enabled language requires some other language.
1805 # We assume that a given config-lang.in will list all the language
1806 # front ends it requires, even if some are required indirectly.
1807 for lang in ${srcdir}/*/config-lang.in ..
1812 # The odd quoting in the next line works around
1813 # an apparent bug in bash 1.12 on linux.
1815 ${srcdir}/[*]/config-lang.in)
1818 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1819 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
1820 for other in $this_lang_requires
1822 case ,${enable_languages}, in
1828 enable_languages="$enable_languages,$other"
1838 for lang in ${srcdir}/*/config-lang.in ..
1842 # The odd quoting in the next line works around
1843 # an apparent bug in bash 1.12 on linux.
1845 ${srcdir}/[*]/config-lang.in) ;;
1847 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1848 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
1849 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
1850 if test "x$lang_alias" = x
1852 echo "$lang doesn't set \$language." 1>&2
1855 case ${build_by_default},${enable_languages}, in
1856 *,$lang_alias,*) add_this_lang=yes ;;
1857 no,*) add_this_lang=no ;;
1858 *,all,*) add_this_lang=yes ;;
1859 *) add_this_lang=no ;;
1861 if test x"${add_this_lang}" = xyes; then
1863 ${srcdir}/ada/config-lang.in)
1864 if test x$have_gnat = xyes ; then
1865 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1869 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1878 # Make gthr-default.h if we have a thread file.
1880 if test $thread_file != single; then
1881 rm -f gthr-default.h
1882 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1883 gthread_flags=-DHAVE_GTHR_DEFAULT
1885 AC_SUBST(gthread_flags)
1887 # Find out what GC implementation we want, or may, use.
1889 [ --with-gc={simple,page} choose the garbage collection mechanism to use
1896 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1901 echo "Using $GGC for garbage collection."
1903 # Use the system's zlib library.
1905 zlibinc="-I\$(srcdir)/../zlib"
1906 AC_ARG_WITH(system-zlib,
1907 [ --with-system-zlib use installed libz],
1914 dnl Very limited version of automake's enable-maintainer-mode
1916 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1917 dnl maintainer-mode is disabled by default
1918 AC_ARG_ENABLE(maintainer-mode,
1919 [ --enable-maintainer-mode
1920 enable make rules and dependencies not useful
1921 (and sometimes confusing) to the casual installer],
1922 maintainer_mode=$enableval,
1925 AC_MSG_RESULT($maintainer_mode)
1927 if test "$maintainer_mode" = "yes"; then
1934 # With Setjmp/Longjmp based exception handling.
1935 AC_ARG_ENABLE(sjlj-exceptions,
1936 [ --enable-sjlj-exceptions
1937 arrange to use setjmp/longjmp exception handling],
1938 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1939 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1940 [Define 0/1 to force the choice for exception handling model.])])
1942 # Make empty files to contain the specs and options for each language.
1943 # Then add #include lines to for a compiler that has specs and/or options.
1948 rm -f specs.h options.h gencheck.h
1949 touch specs.h options.h gencheck.h
1950 for subdir in . $subdirs
1952 if test -f $srcdir/$subdir/lang-specs.h; then
1953 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1954 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1956 if test -f $srcdir/$subdir/lang-options.h; then
1957 echo "#include \"$subdir/lang-options.h\"" >>options.h
1958 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1960 if test -f $srcdir/$subdir/$subdir-tree.def; then
1961 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1962 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1966 # These (without "all_") are set in each config-lang.in.
1967 # `language' must be a single word so is spelled singularly.
1973 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc'
1974 # List of language makefile fragments.
1979 # Add the language fragments.
1980 # Languages are added via two mechanisms. Some information must be
1981 # recorded in makefile variables, these are defined in config-lang.in.
1982 # We accumulate them and plug them into the main Makefile.
1983 # The other mechanism is a set of hooks for each of the main targets
1984 # like `clean', `install', etc.
1986 language_fragments="Make-lang"
1987 language_hooks="Make-hooks"
1989 for s in .. $subdirs
2001 . ${srcdir}/$s/config-lang.in
2002 if test "x$language" = x
2004 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2007 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2008 if test -f ${srcdir}/$s/Makefile.in
2009 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2011 all_languages="$all_languages $language"
2012 if test "x$boot_language" = xyes
2014 all_boot_languages="$all_boot_languages $language"
2016 all_compilers="$all_compilers $compilers"
2017 all_stagestuff="$all_stagestuff $stagestuff"
2018 all_diff_excludes="$all_diff_excludes $diff_excludes"
2019 all_headers="$all_headers $headers"
2020 all_outputs="$all_outputs $outputs"
2021 all_lib2funcs="$all_lib2funcs $lib2funcs"
2026 for language in .. $all_languages
2028 if test $language != ".."
2030 check_languages="$check_languages check-$language"
2034 # Since we can't use `::' targets, we link each language in
2035 # with a set of hooks, reached indirectly via lang.${target}.
2039 target_list="all.build all.cross start.encap rest.encap \
2040 info dvi generated-manpages \
2041 install-normal install-common install-info install-man \
2043 mostlyclean clean distclean extraclean maintainer-clean \
2044 stage1 stage2 stage3 stage4"
2045 for t in $target_list
2048 for lang in .. $all_languages
2050 if test $lang != ".."; then
2054 echo "lang.$t: $x" >> Make-hooks
2059 echo "dir ." > .gdbinit
2060 echo "dir ${srcdir}" >> .gdbinit
2061 if test x$gdb_needs_out_file_path = xyes
2063 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2065 if test "x$subdirs" != x; then
2068 echo "dir ${srcdir}/$s" >> .gdbinit
2071 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2073 # Define variables host_canonical and build_canonical
2074 # because some Cygnus local changes in the Makefile depend on them.
2075 build_canonical=${build}
2076 host_canonical=${host}
2078 if test "${host}" != "${target}" ; then
2079 target_subdir=${target_alias}/
2081 AC_SUBST(build_canonical)
2082 AC_SUBST(host_canonical)
2083 AC_SUBST(target_subdir)
2085 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2086 # absolute path for gcc_tooldir based on inserting the number of up-directory
2087 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2088 # $(libsubdir)/@(unlibsubdir) based path.
2089 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2090 # make and thus we'd get different behavior depending on where we built the
2092 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2093 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2095 changequote(<<, >>)dnl
2096 # An explanation of the sed strings:
2097 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2098 # -e 's|/$||' match a trailing forward slash and eliminates it
2099 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2100 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2102 # (*) Note this pattern overwrites the first character of the string
2103 # with a forward slash if one is not already present. This is not a
2104 # problem because the exact names of the sub-directories concerned is
2105 # unimportant, just the number of them matters.
2107 # The practical upshot of these patterns is like this:
2109 # prefix exec_prefix result
2110 # ------ ----------- ------
2112 # /foo/ /foo/bar ../
2113 # /foo /foo/bar/ ../
2114 # /foo/ /foo/bar/ ../
2115 # /foo /foo/bar/ugg ../../
2118 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2119 changequote([, ])dnl
2121 AC_SUBST(gcc_tooldir)
2124 # Find a directory in which to install a shared libgcc.
2126 AC_ARG_ENABLE(version-specific-runtime-libs,
2127 [ --enable-version-specific-runtime-libs
2128 specify that runtime libraries should be
2129 installed in a compiler-specific directory])
2131 AC_ARG_WITH(slibdir,
2132 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2133 slibdir="$with_slibdir",
2134 if test "${enable_version_specific_runtime_libs+set}" = set; then
2135 slibdir='$(libsubdir)'
2136 elif test "$host" != "$target"; then
2137 slibdir='$(build_tooldir)/lib'
2143 # Nothing to do for FLOAT_H, float_format already handled.
2147 # Process the language and host/target makefile fragments.
2148 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2150 # Substitute configuration variables
2152 AC_SUBST(all_boot_languages)
2153 AC_SUBST(all_compilers)
2154 AC_SUBST(all_diff_excludes)
2155 AC_SUBST(all_headers)
2156 AC_SUBST(all_lang_makefiles)
2157 AC_SUBST(all_languages)
2158 AC_SUBST(all_lib2funcs)
2159 AC_SUBST(all_stagestuff)
2160 AC_SUBST(build_exeext)
2161 AC_SUBST(build_install_headers_dir)
2162 AC_SUBST(build_xm_file_list)
2163 AC_SUBST(build_xm_file)
2164 AC_SUBST(build_xm_defines)
2165 AC_SUBST(check_languages)
2166 AC_SUBST(cc_set_by_configure)
2167 AC_SUBST(quoted_cc_set_by_configure)
2168 AC_SUBST(cpp_install_dir)
2169 AC_SUBST(dep_host_xmake_file)
2170 AC_SUBST(dep_tmake_file)
2171 AC_SUBST(extra_c_flags)
2172 AC_SUBST(extra_headers_list)
2173 AC_SUBST(extra_objs)
2174 AC_SUBST(extra_parts)
2175 AC_SUBST(extra_passes)
2176 AC_SUBST(extra_programs)
2177 AC_SUBST(float_h_file)
2178 AC_SUBST(gcc_config_arguments)
2179 AC_SUBST(gcc_gxx_include_dir)
2180 AC_SUBST(libstdcxx_incdir)
2181 AC_SUBST(gcc_version)
2182 AC_SUBST(gcc_version_full)
2183 AC_SUBST(gcc_version_trigger)
2184 AC_SUBST(host_exeext)
2185 AC_SUBST(host_extra_gcc_objs)
2186 AC_SUBST(host_xm_file_list)
2187 AC_SUBST(host_xm_file)
2188 AC_SUBST(host_xm_defines)
2190 AC_SUBST(lang_options_files)
2191 AC_SUBST(lang_specs_files)
2192 AC_SUBST(lang_tree_files)
2193 AC_SUBST(local_prefix)
2195 AC_SUBST(objc_boehm_gc)
2197 AC_SUBST(out_object_file)
2198 AC_SUBST(stage_prefix_set_by_configure)
2199 AC_SUBST(symbolic_link)
2200 AC_SUBST(thread_file)
2201 AC_SUBST(tm_file_list)
2203 AC_SUBST(tm_p_file_list)
2206 AC_SUBST(xm_defines)
2207 AC_SUBST(c_target_objs)
2208 AC_SUBST(cxx_target_objs)
2209 AC_SUBST(target_cpu_default)
2211 AC_SUBST_FILE(target_overrides)
2212 AC_SUBST_FILE(host_overrides)
2213 AC_SUBST(cross_defines)
2214 AC_SUBST_FILE(cross_overrides)
2215 AC_SUBST_FILE(build_overrides)
2216 AC_SUBST_FILE(language_fragments)
2217 AC_SUBST_FILE(language_hooks)
2219 # Echo that links are built
2220 if test x$host = x$target
2228 if test x$host != x$build
2230 str3=" on a $build system"
2233 if test "x$str2" != x || test "x$str3" != x
2238 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2240 if test "x$str2" != x || test "x$str3" != x
2242 echo " ${str2}${str3}." 1>&2
2245 # Truncate the target if necessary
2246 if test x$host_truncate_target != x; then
2247 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2250 # Configure the subdirectories
2251 # AC_CONFIG_SUBDIRS($subdirs)
2253 # Create the Makefile
2254 # and configure language subdirectories
2255 AC_OUTPUT($all_outputs,
2257 case x$CONFIG_HEADERS in
2258 xauto-host.h:config.in)
2261 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2262 # bootstrapping and the installation procedure can still use
2263 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2264 # FLAGS_TO_PASS has been modified to solve the problem there.
2265 # This is virtually a duplicate of what happens in configure.lang; we do
2266 # an extra check to make sure this only happens if ln -s can be used.
2267 if test "$symbolic_link" = "ln -s"; then
2268 for d in .. ${subdirs} fixinc ; do
2269 if test $d != ..; then
2272 for t in stage1 stage2 stage3 stage4 include
2275 $symbolic_link ../$t $t 2>/dev/null
2281 # Avoid having to add intl to our include paths.
2282 if test -f intl/libintl.h; then
2283 echo creating libintl.h
2284 echo '#include "intl/libintl.h"' >libintl.h
2291 target_alias='${target_alias}'
2293 subdirs='${subdirs}'
2294 symbolic_link='${symbolic_link}'
2295 program_transform_set='${program_transform_set}'
2296 program_transform_name='${program_transform_name}'
2297 dep_host_xmake_file='${dep_host_xmake_file}'
2298 host_xmake_file='${host_xmake_file}'
2299 dep_tmake_file='${dep_tmake_file}'
2300 tmake_file='${tmake_file}'
2301 thread_file='${thread_file}'
2302 gcc_config_arguments='${gcc_config_arguments}'
2303 gcc_version='${gcc_version}'
2304 gcc_version_full='${gcc_version_full}'
2305 gcc_version_trigger='${gcc_version_trigger}'
2306 local_prefix='${local_prefix}'
2307 build_install_headers_dir='${build_install_headers_dir}'
2308 build_exeext='${build_exeext}'
2309 host_exeext='${host_exeext}'
2310 out_file='${out_file}'
2311 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
2312 SET_MAKE='${SET_MAKE}'
2313 target_list='${target_list}'
2314 target_overrides='${target_overrides}'
2315 host_overrides='${host_overrides}'
2316 cross_defines='${cross_defines}'
2317 cross_overrides='${cross_overrides}'
2318 build_overrides='${build_overrides}'
2319 cpp_install_dir='${cpp_install_dir}'