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/$f" ;;
1069 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1070 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1071 CROSS= AC_SUBST(CROSS)
1072 ALL=all.internal AC_SUBST(ALL)
1073 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1074 if test x$host != x$target
1076 CROSS="-DCROSS_COMPILE"
1078 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1081 # If this is a cross-compiler that does not
1082 # have its own set of headers then define
1085 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1086 # This prevents libgcc2 from containing any code which requires libc
1089 if [test x$host != x$target] && [test x$with_headers = x]; then
1090 inhibit_libc=-Dinhibit_libc
1092 if [test x$with_newlib = xyes]; then
1093 inhibit_libc=-Dinhibit_libc
1096 AC_SUBST(inhibit_libc)
1098 # When building gcc with a cross-compiler, we need to adjust things so
1099 # that the generator programs are still built with the native compiler.
1100 # Also, we cannot run fixincludes or fix-header.
1101 # Note that the terminology here is wrong; it should be BUILD_* throughout.
1104 # These are the normal (build=host) settings:
1105 HOST_PREFIX= AC_SUBST(HOST_PREFIX)
1106 HOST_PREFIX_1=ignore- AC_SUBST(HOST_PREFIX_1)
1107 HOST_CC='$(CC)' AC_SUBST(HOST_CC)
1108 HOST_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(HOST_CFLAGS)
1110 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1111 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1113 # And these apply if build != host.
1114 if test x$build != x$host
1117 HOST_PREFIX_1=build-
1118 HOST_CC='$(CC_FOR_BUILD)'
1119 HOST_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1125 # Expand extra_headers to include complete path.
1126 # This substitutes for lots of t-* files.
1128 if test "x$extra_headers" = x
1131 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1132 for file in $extra_headers;
1134 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1138 if test x$use_collect2 = xno; then
1142 # Add a definition of USE_COLLECT2 if system wants one.
1143 if test x$use_collect2 != x
1145 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1146 xm_defines="${xm_defines} USE_COLLECT2"
1149 # If we have gas in the build tree, make a link to it.
1150 if test -f ../gas/Makefile; then
1151 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1154 # If we have nm and objdump in the build tree, make a link to them.
1155 if test -f ../binutils/Makefile; then
1156 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1157 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1160 # If we have ld in the build tree, make a link to it.
1161 if test -f ../ld/Makefile; then
1162 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1165 # Figure out what assembler we will be using.
1166 AC_MSG_CHECKING(what assembler to use)
1168 gcc_cv_gas_major_version=
1169 gcc_cv_gas_minor_version=
1170 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1171 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1172 if test -x "$DEFAULT_ASSEMBLER"; then
1173 gcc_cv_as="$DEFAULT_ASSEMBLER"
1174 elif test -x "$AS"; then
1176 elif test -x as$host_exeext; then
1177 # Build using assembler in the current directory.
1178 gcc_cv_as=./as$host_exeext
1179 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1180 # Single tree build which includes gas.
1181 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
1184 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1186 if test x$gcc_cv_gas_version != x; then
1191 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1192 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1196 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1198 # Search the same directories that the installed compiler will
1199 # search. Else we may find the wrong assembler and lose. If we
1200 # do not find a suitable assembler binary, then try the user's
1203 # Also note we have to check MD_EXEC_PREFIX before checking the
1204 # user's path. Unfortunately, there is no good way to get at the
1205 # value of MD_EXEC_PREFIX here. So we do a brute force search
1206 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1207 # to be fixed as part of the make/configure rewrite too.
1209 if test "x$exec_prefix" = xNONE; then
1210 if test "x$prefix" = xNONE; then
1211 test_prefix=/usr/local
1216 test_prefix=$exec_prefix
1219 # If the loop below does not find an assembler, then use whatever
1220 # one we can find in the users's path.
1222 gcc_cv_as=as$host_exeext
1224 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1225 $test_prefix/lib/gcc-lib/$target \
1226 /usr/lib/gcc/$target/$gcc_version \
1227 /usr/lib/gcc/$target \
1228 $test_prefix/$target/bin/$target/$gcc_version \
1229 $test_prefix/$target/bin \
1234 /bsd43/usr/lib/cmplrs/cc \
1235 /usr/cross64/usr/bin \
1236 /usr/lib/cmplrs/cc \
1237 /sysv/usr/lib/cmplrs/cc \
1238 /svr4/usr/lib/cmplrs/cc \
1241 for dir in $test_dirs; do
1242 if test -f $dir/as$host_exeext; then
1243 gcc_cv_as=$dir/as$host_exeext
1248 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1249 AC_MSG_RESULT("newly built gas")
1251 AC_MSG_RESULT($gcc_cv_as)
1254 # Figure out what nm we will be using.
1255 AC_MSG_CHECKING(what nm to use)
1256 if test -x nm$host_exeext; then
1257 gcc_cv_nm=./nm$host_exeext
1258 elif test x$host = x$target; then
1260 gcc_cv_nm=nm$host_exeext
1262 AC_MSG_RESULT($gcc_cv_nm)
1264 # Figure out what objdump we will be using.
1265 AC_MSG_CHECKING(what objdump to use)
1266 if test -x objdump$host_exeext; then
1267 gcc_cv_objdump=./objdump$host_exeext
1268 elif test x$host = x$target; then
1270 gcc_cv_objdump=objdump$host_exeext
1272 AC_MSG_RESULT($gcc_cv_objdump)
1274 # Figure out what assembler alignment features are present.
1275 AC_MSG_CHECKING(assembler alignment features)
1276 gcc_cv_as_alignment_features=none
1277 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1278 # Gas version 2.6 and later support for .balign and .p2align.
1279 # bytes to skip when using .p2align.
1280 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1281 gcc_cv_as_alignment_features=".balign and .p2align"
1282 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1284 # Gas version 2.8 and later support specifying the maximum
1285 # bytes to skip when using .p2align.
1286 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1287 gcc_cv_as_alignment_features=".p2align including maximum skip"
1288 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1290 elif test x$gcc_cv_as != x; then
1291 # Check if we have .balign and .p2align
1292 echo ".balign 4" > conftest.s
1293 echo ".p2align 2" >> conftest.s
1294 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1295 gcc_cv_as_alignment_features=".balign and .p2align"
1296 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1298 rm -f conftest.s conftest.o
1299 # Check if specifying the maximum bytes to skip when
1300 # using .p2align is supported.
1301 echo ".p2align 4,,7" > conftest.s
1302 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1303 gcc_cv_as_alignment_features=".p2align including maximum skip"
1304 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1306 rm -f conftest.s conftest.o
1308 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1310 AC_MSG_CHECKING(assembler subsection support)
1311 gcc_cv_as_subsections=no
1312 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1313 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1314 gcc_cv_as_subsections="working .subsection -1"
1316 elif test x$gcc_cv_as != x; then
1317 # Check if we have .subsection
1318 echo ".subsection 1" > conftest.s
1319 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1320 gcc_cv_as_subsections=".subsection"
1321 if test x$gcc_cv_nm != x; then
1322 cat > conftest.s <<EOF
1323 conftest_label1: .word 0
1325 conftest_label2: .word 0
1328 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1329 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1330 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1331 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1334 gcc_cv_as_subsections="working .subsection -1"
1339 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1341 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1342 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1343 [Define if your assembler supports .subsection and .subsection -1 starts
1344 emitting at the beginning of your section.])
1346 AC_MSG_RESULT($gcc_cv_as_subsections)
1348 AC_MSG_CHECKING(assembler weak support)
1350 if test x$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 "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1352 gcc_cv_as_weak="yes"
1354 elif test x$gcc_cv_as != x; then
1355 # Check if we have .weak
1356 echo " .weak foobar" > conftest.s
1357 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1358 gcc_cv_as_weak="yes"
1360 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1362 if test x"$gcc_cv_as_weak" = xyes; then
1363 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1365 AC_MSG_RESULT($gcc_cv_as_weak)
1367 AC_MSG_CHECKING(assembler hidden support)
1369 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1370 if test "$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
1371 gcc_cv_as_hidden="yes"
1373 elif test x$gcc_cv_as != x; then
1374 # Check if we have .hidden
1375 echo " .hidden foobar" > conftest.s
1376 echo "foobar:" >> conftest.s
1377 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1378 gcc_cv_as_hidden="yes"
1380 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1382 if test x"$gcc_cv_as_hidden" = xyes; then
1383 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1384 [Define if your assembler supports .hidden.])
1386 AC_MSG_RESULT($gcc_cv_as_hidden)
1388 AC_MSG_CHECKING(assembler leb128 support)
1390 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1391 if test "$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
1392 gcc_cv_as_leb128="yes"
1394 elif test x$gcc_cv_as != x; then
1395 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1396 cat > conftest.s <<EOF
1404 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1405 gcc_cv_as_leb128="yes"
1407 # GAS versions before 2.11 do not support uleb128,
1408 # despite appearing to.
1409 # ??? There exists an elf-specific test that will crash
1410 # the assembler. Perhaps it's better to figure out whether
1411 # arbitrary sections are supported and try the test.
1412 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1413 if echo "$as_ver" | grep GNU > /dev/null; then
1415 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1416 as_major=`echo $as_ver | sed 's/\..*//'`
1417 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1419 if test $as_major -eq 2 -a $as_minor -lt 11; then
1420 gcc_cv_as_leb128="no"
1424 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1426 if test x"$gcc_cv_as_leb128" = xyes; then
1427 AC_DEFINE(HAVE_AS_LEB128, 1,
1428 [Define if your assembler supports .uleb128.])
1430 AC_MSG_RESULT($gcc_cv_as_leb128)
1432 AC_MSG_CHECKING(assembler eh_frame optimization)
1433 gcc_cv_as_eh_frame=no
1434 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1435 if test "$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
1436 gcc_cv_as_eh_frame="yes"
1438 elif test x$gcc_cv_as != x; then
1439 # Check if this is GAS.
1440 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1441 rm -f a.out 2> /dev/null
1442 if echo "$as_ver" | grep GNU > /dev/null; then
1443 # Versions up to and including 2.11.0 may mis-optimize
1444 # .eh_frame data. Try something.
1445 cat > conftest.s <<EOF
1452 .section .eh_frame,"aw",@progbits
1454 .4byte .LECIE1-.LSCIE1
1468 .4byte .LEFDE1-.LASFDE1
1470 .4byte .LASFDE1-__FRAME_BEGIN__
1479 cat > conftest.lit <<EOF
1480 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1481 0010 01000000 12000000 18000000 00000000 ................
1482 0020 08000000 04080000 0044 .........D
1484 cat > conftest.big <<EOF
1485 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1486 0010 00000001 00000012 00000018 00000000 ................
1487 0020 00000008 04000000 0844 .........D
1489 # If the assembler didn't choke, and we can objdump,
1490 # and we got the correct data, then succeed.
1491 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1492 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1493 | tail -3 > conftest.got \
1494 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1495 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1497 gcc_cv_as_eh_frame="yes"
1499 gcc_cv_as_eh_frame="bad"
1500 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1501 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1502 [Define if your assembler mis-optimizes .eh_frame data.])
1508 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1510 AC_MSG_CHECKING(assembler section merging support)
1511 gcc_cv_as_shf_merge=no
1512 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1513 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1514 gcc_cv_as_shf_merge=yes
1516 elif test x$gcc_cv_as != x; then
1517 # Check if we support SHF_MERGE sections
1518 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1519 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1520 gcc_cv_as_shf_merge=yes
1522 rm -f conftest.s conftest.o
1524 if test x"$gcc_cv_as_shf_merge" = xyes; then
1525 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1526 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1528 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1532 AC_CACHE_CHECK([assembler .register pseudo-op support],
1533 gcc_cv_as_register_pseudo_op, [
1534 gcc_cv_as_register_pseudo_op=unknown
1535 if test x$gcc_cv_as != x; then
1536 # Check if we have .register
1537 echo ".register %g2, #scratch" > conftest.s
1538 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1539 gcc_cv_as_register_pseudo_op=yes
1541 gcc_cv_as_register_pseudo_op=no
1543 rm -f conftest.s conftest.o
1546 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1547 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1548 [Define if your assembler supports .register.])
1551 AC_CACHE_CHECK([assembler supports -relax],
1552 gcc_cv_as_relax_opt, [
1553 gcc_cv_as_relax_opt=unknown
1554 if test x$gcc_cv_as != x; then
1555 # Check if gas supports -relax
1556 echo ".text" > conftest.s
1557 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1558 gcc_cv_as_relax_opt=yes
1560 gcc_cv_as_relax_opt=no
1562 rm -f conftest.s conftest.o
1565 if test "x$gcc_cv_as_relax_opt" = xyes; then
1566 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1567 [Define if your assembler supports -relax option.])
1572 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1573 gcc_cv_as_flags64, [
1574 if test -n "$gcc_cv_as"; then
1575 echo ".xword foo" > conftest.s
1576 gcc_cv_as_flags64=no
1577 for flag in "-xarch=v9" "-64 -Av9"; do
1578 if $gcc_cv_as $flag -o conftest.o conftest.s \
1579 > /dev/null 2>&1; then
1580 gcc_cv_as_flags64=$flag
1584 rm -f conftest.s conftest.o
1586 if test "$gas" = yes; then
1587 gcc_cv_as_flags64="-64 -Av9"
1589 gcc_cv_as_flags64="-xarch=v9"
1593 if test "x$gcc_cv_as_flags64" = xno; then
1595 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1596 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1599 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1600 [Define if the assembler supports 64bit sparc.])
1603 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1607 if test "x$gcc_cv_as_flags64" != xno; then
1608 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1609 gcc_cv_as_offsetable_lo10, [
1610 gcc_cv_as_offsetable_lo10=unknown
1611 if test "x$gcc_cv_as" != x; then
1612 # Check if assembler has offsetable %lo()
1613 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1614 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1615 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1617 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1618 > /dev/null 2>&1; then
1619 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1620 gcc_cv_as_offsetable_lo10=no
1622 gcc_cv_as_offsetable_lo10=yes
1625 gcc_cv_as_offsetable_lo10=no
1627 rm -f conftest.s conftest.o conftest1.s conftest1.o
1630 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1631 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1632 [Define if your assembler supports offsetable %lo().])
1639 i[34567]86-*-* | x86_64-*-*)
1641 AC_MSG_CHECKING(assembler instructions)
1642 gcc_cv_as_instructions=
1643 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1644 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1645 gcc_cv_as_instructions="filds fists"
1647 elif test x$gcc_cv_as != x; then
1648 set "filds fists" "filds mem; fists mem"
1651 echo "$2" > conftest.s
1652 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1653 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1657 rm -f conftest.s conftest.o
1659 if test x"$gcc_cv_as_instructions" != x; then
1660 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1662 AC_MSG_RESULT($gcc_cv_as_instructions)
1664 AC_MSG_CHECKING(assembler GOTOFF in data directives)
1665 gcc_cv_as_gotoff_in_data=no
1666 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1668 if test "$gcc_cv_gas_major_version" -eq 2 \
1669 -a "$gcc_cv_gas_minor_version" -ge 11 \
1670 -o "$gcc_cv_gas_major_version" -gt 2; then
1671 gcc_cv_as_gotoff_in_data=yes
1673 elif test x$gcc_cv_as != x; then
1674 cat > conftest.s <<EOF
1681 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1682 gcc_cv_as_gotoff_in_data=yes
1685 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
1686 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
1687 [Define true if the assembler supports '.long foo@GOTOFF'.])
1688 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
1692 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1693 gcc_cv_as_dwarf2_debug_line=no
1694 # ??? Not all targets support dwarf2 debug_line, even within a version
1695 # of gas. Moreover, we need to emit a valid instruction to trigger any
1696 # info to the output file. So, as supported targets are added to gas 2.11,
1697 # add some instruction here to (also) show we expect this might work.
1698 # ??? Once 2.11 is released, probably need to add first known working
1699 # version to the per-target configury.
1701 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-*)
1708 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1710 if test "$gcc_cv_gas_major_version" -eq 2 \
1711 -a "$gcc_cv_gas_minor_version" -ge 11 \
1712 -o "$gcc_cv_gas_major_version" -gt 2 \
1713 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1714 && test x"$insn" != x ; then
1715 gcc_cv_as_dwarf2_debug_line="yes"
1717 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1718 echo ' .file 1 "conftest.s"' > conftest.s
1719 echo ' .loc 1 3 0' >> conftest.s
1720 echo " $insn" >> conftest.s
1721 # ??? This fails with non-gnu grep.
1722 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1723 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1724 # The .debug_line file table must be in the exact order that
1725 # we specified the files, since these indices are also used
1726 # by DW_AT_decl_file. Approximate this test by testing if
1727 # the assembler bitches if the same index is assigned twice.
1728 echo ' .file 1 "foo.s"' > conftest.s
1729 echo ' .file 1 "bar.s"' >> conftest.s
1730 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
1732 gcc_cv_as_dwarf2_debug_line="no"
1734 gcc_cv_as_dwarf2_debug_line="yes"
1737 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1739 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1740 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1741 [Define if your assembler supports dwarf2 .file/.loc directives,
1742 and preserves file table indices exactly as given.])
1744 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1746 AC_MSG_CHECKING(assembler --gdwarf2 support)
1747 gcc_cv_as_gdwarf2_flag=no
1748 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1750 if test "$gcc_cv_gas_major_version" -eq 2 \
1751 -a "$gcc_cv_gas_minor_version" -ge 11 \
1752 -o "$gcc_cv_gas_major_version" -gt 2 \
1753 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1754 && test x"$insn" != x ; then
1755 gcc_cv_as_gdwarf2_debug_flag="yes"
1757 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1758 echo '' > conftest.s
1759 # ??? This fails with non-gnu grep.
1760 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
1762 gcc_cv_as_gdwarf2_flag="yes"
1764 rm -f conftest.s conftest.o
1766 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
1767 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
1768 [Define if your assembler supports the --gdwarf2 option.])
1770 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
1772 AC_MSG_CHECKING(assembler --gstabs support)
1773 gcc_cv_as_gstabs_flag=no
1774 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1776 if test "$gcc_cv_gas_major_version" -eq 2 \
1777 -a "$gcc_cv_gas_minor_version" -ge 11 \
1778 -o "$gcc_cv_gas_major_version" -gt 2 \
1779 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1780 && test x"$insn" != x ; then
1781 gcc_cv_as_gstabs_debug_flag="yes"
1783 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1784 echo '' > conftest.s
1785 # ??? This fails with non-gnu grep.
1786 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
1787 gcc_cv_as_gstabs_flag="yes"
1789 rm -f conftest.s conftest.o
1791 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
1792 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
1793 [Define if your assembler supports the --gstabs option.])
1795 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
1797 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
1798 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
1801 # Figure out what language subdirectories are present.
1802 # Look if the user specified --enable-languages="..."; if not, use
1803 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1805 # NB: embedded tabs in this IF block -- do not untabify
1806 if test x"${enable_languages+set}" != xset; then
1807 if test x"${LANGUAGES+set}" = xset; then
1808 enable_languages="${LANGUAGES}"
1809 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
1812 enable_languages=all
1815 if test x"${enable_languages}" = x ||
1816 test x"${enable_languages}" = xyes;
1818 AC_MSG_ERROR([--enable-languages needs at least one language argument])
1821 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1823 # First scan to see if an enabled language requires some other language.
1824 # We assume that a given config-lang.in will list all the language
1825 # front ends it requires, even if some are required indirectly.
1826 for lang in ${srcdir}/*/config-lang.in ..
1831 # The odd quoting in the next line works around
1832 # an apparent bug in bash 1.12 on linux.
1834 ${srcdir}/[*]/config-lang.in)
1837 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1838 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
1839 for other in $this_lang_requires
1841 case ,${enable_languages}, in
1847 enable_languages="$enable_languages,$other"
1857 for lang in ${srcdir}/*/config-lang.in ..
1861 # The odd quoting in the next line works around
1862 # an apparent bug in bash 1.12 on linux.
1864 ${srcdir}/[*]/config-lang.in) ;;
1866 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1867 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
1868 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
1869 if test "x$lang_alias" = x
1871 echo "$lang doesn't set \$language." 1>&2
1874 case ${build_by_default},${enable_languages}, in
1875 *,$lang_alias,*) add_this_lang=yes ;;
1876 no,*) add_this_lang=no ;;
1877 *,all,*) add_this_lang=yes ;;
1878 *) add_this_lang=no ;;
1880 if test x"${add_this_lang}" = xyes; then
1882 ${srcdir}/ada/config-lang.in)
1883 if test x$have_gnat = xyes ; then
1884 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1888 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1897 # Make gthr-default.h if we have a thread file.
1899 if test $thread_file != single; then
1900 rm -f gthr-default.h
1901 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1902 gthread_flags=-DHAVE_GTHR_DEFAULT
1904 AC_SUBST(gthread_flags)
1906 # Find out what GC implementation we want, or may, use.
1908 [ --with-gc={simple,page} choose the garbage collection mechanism to use
1915 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1920 echo "Using $GGC for garbage collection."
1922 # Use the system's zlib library.
1924 zlibinc="-I\$(srcdir)/../zlib"
1925 AC_ARG_WITH(system-zlib,
1926 [ --with-system-zlib use installed libz],
1933 dnl Very limited version of automake's enable-maintainer-mode
1935 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1936 dnl maintainer-mode is disabled by default
1937 AC_ARG_ENABLE(maintainer-mode,
1938 [ --enable-maintainer-mode
1939 enable make rules and dependencies not useful
1940 (and sometimes confusing) to the casual installer],
1941 maintainer_mode=$enableval,
1944 AC_MSG_RESULT($maintainer_mode)
1946 if test "$maintainer_mode" = "yes"; then
1953 # With Setjmp/Longjmp based exception handling.
1954 AC_ARG_ENABLE(sjlj-exceptions,
1955 [ --enable-sjlj-exceptions
1956 arrange to use setjmp/longjmp exception handling],
1957 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1958 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1959 [Define 0/1 to force the choice for exception handling model.])])
1961 # Make empty files to contain the specs and options for each language.
1962 # Then add #include lines to for a compiler that has specs and/or options.
1967 rm -f specs.h options.h gencheck.h
1968 touch specs.h options.h gencheck.h
1969 for subdir in . $subdirs
1971 if test -f $srcdir/$subdir/lang-specs.h; then
1972 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1973 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1975 if test -f $srcdir/$subdir/lang-options.h; then
1976 echo "#include \"$subdir/lang-options.h\"" >>options.h
1977 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1979 if test -f $srcdir/$subdir/$subdir-tree.def; then
1980 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1981 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1985 # These (without "all_") are set in each config-lang.in.
1986 # `language' must be a single word so is spelled singularly.
1992 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc'
1993 # List of language makefile fragments.
1998 # Add the language fragments.
1999 # Languages are added via two mechanisms. Some information must be
2000 # recorded in makefile variables, these are defined in config-lang.in.
2001 # We accumulate them and plug them into the main Makefile.
2002 # The other mechanism is a set of hooks for each of the main targets
2003 # like `clean', `install', etc.
2005 language_fragments="Make-lang"
2006 language_hooks="Make-hooks"
2008 for s in .. $subdirs
2020 . ${srcdir}/$s/config-lang.in
2021 if test "x$language" = x
2023 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2026 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2027 if test -f ${srcdir}/$s/Makefile.in
2028 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2030 all_languages="$all_languages $language"
2031 if test "x$boot_language" = xyes
2033 all_boot_languages="$all_boot_languages $language"
2035 all_compilers="$all_compilers $compilers"
2036 all_stagestuff="$all_stagestuff $stagestuff"
2037 all_diff_excludes="$all_diff_excludes $diff_excludes"
2038 all_headers="$all_headers $headers"
2039 all_outputs="$all_outputs $outputs"
2040 all_lib2funcs="$all_lib2funcs $lib2funcs"
2045 for language in .. $all_languages
2047 if test $language != ".."
2049 check_languages="$check_languages check-$language"
2053 # Since we can't use `::' targets, we link each language in
2054 # with a set of hooks, reached indirectly via lang.${target}.
2058 target_list="all.build all.cross start.encap rest.encap \
2059 info dvi generated-manpages \
2060 install-normal install-common install-info install-man \
2062 mostlyclean clean distclean extraclean maintainer-clean \
2063 stage1 stage2 stage3 stage4"
2064 for t in $target_list
2067 for lang in .. $all_languages
2069 if test $lang != ".."; then
2073 echo "lang.$t: $x" >> Make-hooks
2078 echo "dir ." > .gdbinit
2079 echo "dir ${srcdir}" >> .gdbinit
2080 if test x$gdb_needs_out_file_path = xyes
2082 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2084 if test "x$subdirs" != x; then
2087 echo "dir ${srcdir}/$s" >> .gdbinit
2090 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2092 # Define variables host_canonical and build_canonical
2093 # because some Cygnus local changes in the Makefile depend on them.
2094 build_canonical=${build}
2095 host_canonical=${host}
2097 if test "${host}" != "${target}" ; then
2098 target_subdir=${target_alias}/
2100 AC_SUBST(build_canonical)
2101 AC_SUBST(host_canonical)
2102 AC_SUBST(target_subdir)
2104 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2105 # absolute path for gcc_tooldir based on inserting the number of up-directory
2106 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2107 # $(libsubdir)/@(unlibsubdir) based path.
2108 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2109 # make and thus we'd get different behavior depending on where we built the
2111 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2112 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2114 changequote(<<, >>)dnl
2115 # An explanation of the sed strings:
2116 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2117 # -e 's|/$||' match a trailing forward slash and eliminates it
2118 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2119 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2121 # (*) Note this pattern overwrites the first character of the string
2122 # with a forward slash if one is not already present. This is not a
2123 # problem because the exact names of the sub-directories concerned is
2124 # unimportant, just the number of them matters.
2126 # The practical upshot of these patterns is like this:
2128 # prefix exec_prefix result
2129 # ------ ----------- ------
2131 # /foo/ /foo/bar ../
2132 # /foo /foo/bar/ ../
2133 # /foo/ /foo/bar/ ../
2134 # /foo /foo/bar/ugg ../../
2137 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2138 changequote([, ])dnl
2140 AC_SUBST(gcc_tooldir)
2143 # Find a directory in which to install a shared libgcc.
2145 AC_ARG_ENABLE(version-specific-runtime-libs,
2146 [ --enable-version-specific-runtime-libs
2147 specify that runtime libraries should be
2148 installed in a compiler-specific directory])
2150 AC_ARG_WITH(slibdir,
2151 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2152 slibdir="$with_slibdir",
2153 if test "${enable_version_specific_runtime_libs+set}" = set; then
2154 slibdir='$(libsubdir)'
2155 elif test "$host" != "$target"; then
2156 slibdir='$(build_tooldir)/lib'
2162 # Nothing to do for FLOAT_H, float_format already handled.
2166 # Process the language and host/target makefile fragments.
2167 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2169 # Substitute configuration variables
2171 AC_SUBST(all_boot_languages)
2172 AC_SUBST(all_compilers)
2173 AC_SUBST(all_diff_excludes)
2174 AC_SUBST(all_headers)
2175 AC_SUBST(all_lang_makefiles)
2176 AC_SUBST(all_languages)
2177 AC_SUBST(all_lib2funcs)
2178 AC_SUBST(all_stagestuff)
2179 AC_SUBST(build_exeext)
2180 AC_SUBST(build_install_headers_dir)
2181 AC_SUBST(build_xm_file_list)
2182 AC_SUBST(build_xm_file)
2183 AC_SUBST(build_xm_defines)
2184 AC_SUBST(check_languages)
2185 AC_SUBST(cc_set_by_configure)
2186 AC_SUBST(quoted_cc_set_by_configure)
2187 AC_SUBST(cpp_install_dir)
2188 AC_SUBST(dep_host_xmake_file)
2189 AC_SUBST(dep_tmake_file)
2190 AC_SUBST(extra_headers_list)
2191 AC_SUBST(extra_objs)
2192 AC_SUBST(extra_parts)
2193 AC_SUBST(extra_passes)
2194 AC_SUBST(extra_programs)
2195 AC_SUBST(float_h_file)
2196 AC_SUBST(gcc_config_arguments)
2197 AC_SUBST(gcc_gxx_include_dir)
2198 AC_SUBST(libstdcxx_incdir)
2199 AC_SUBST(gcc_version)
2200 AC_SUBST(gcc_version_full)
2201 AC_SUBST(gcc_version_trigger)
2202 AC_SUBST(host_exeext)
2203 AC_SUBST(host_extra_gcc_objs)
2204 AC_SUBST(host_xm_file_list)
2205 AC_SUBST(host_xm_file)
2206 AC_SUBST(host_xm_defines)
2208 AC_SUBST(lang_options_files)
2209 AC_SUBST(lang_specs_files)
2210 AC_SUBST(lang_tree_files)
2211 AC_SUBST(local_prefix)
2213 AC_SUBST(objc_boehm_gc)
2215 AC_SUBST(out_object_file)
2216 AC_SUBST(stage_prefix_set_by_configure)
2217 AC_SUBST(symbolic_link)
2218 AC_SUBST(thread_file)
2219 AC_SUBST(tm_file_list)
2221 AC_SUBST(tm_p_file_list)
2224 AC_SUBST(xm_defines)
2225 AC_SUBST(c_target_objs)
2226 AC_SUBST(cxx_target_objs)
2227 AC_SUBST(target_cpu_default)
2229 AC_SUBST_FILE(target_overrides)
2230 AC_SUBST_FILE(host_overrides)
2231 AC_SUBST_FILE(language_fragments)
2232 AC_SUBST_FILE(language_hooks)
2234 # Echo that links are built
2235 if test x$host = x$target
2243 if test x$host != x$build
2245 str3=" on a $build system"
2248 if test "x$str2" != x || test "x$str3" != x
2253 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2255 if test "x$str2" != x || test "x$str3" != x
2257 echo " ${str2}${str3}." 1>&2
2260 # Truncate the target if necessary
2261 if test x$host_truncate_target != x; then
2262 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2265 # Configure the subdirectories
2266 # AC_CONFIG_SUBDIRS($subdirs)
2268 # Create the Makefile
2269 # and configure language subdirectories
2270 AC_OUTPUT($all_outputs,
2272 case x$CONFIG_HEADERS in
2273 xauto-host.h:config.in)
2276 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2277 # bootstrapping and the installation procedure can still use
2278 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2279 # FLAGS_TO_PASS has been modified to solve the problem there.
2280 # This is virtually a duplicate of what happens in configure.lang; we do
2281 # an extra check to make sure this only happens if ln -s can be used.
2282 if test "$symbolic_link" = "ln -s"; then
2283 for d in .. ${subdirs} fixinc ; do
2284 if test $d != ..; then
2287 for t in stage1 stage2 stage3 stage4 include
2290 $symbolic_link ../$t $t 2>/dev/null
2296 # Avoid having to add intl to our include paths.
2297 if test -f intl/libintl.h; then
2298 echo creating libintl.h
2299 echo '#include "intl/libintl.h"' >libintl.h
2306 target_alias='${target_alias}'
2308 subdirs='${subdirs}'
2309 symbolic_link='${symbolic_link}'
2310 program_transform_set='${program_transform_set}'
2311 program_transform_name='${program_transform_name}'
2312 dep_host_xmake_file='${dep_host_xmake_file}'
2313 host_xmake_file='${host_xmake_file}'
2314 dep_tmake_file='${dep_tmake_file}'
2315 tmake_file='${tmake_file}'
2316 thread_file='${thread_file}'
2317 gcc_config_arguments='${gcc_config_arguments}'
2318 gcc_version='${gcc_version}'
2319 gcc_version_full='${gcc_version_full}'
2320 gcc_version_trigger='${gcc_version_trigger}'
2321 local_prefix='${local_prefix}'
2322 build_install_headers_dir='${build_install_headers_dir}'
2323 build_exeext='${build_exeext}'
2324 host_exeext='${host_exeext}'
2325 out_file='${out_file}'
2326 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
2327 SET_MAKE='${SET_MAKE}'
2328 target_list='${target_list}'
2329 target_overrides='${target_overrides}'
2330 host_overrides='${host_overrides}'
2331 cpp_install_dir='${cpp_install_dir}'