1 # configure.in for GNU CC
2 # Process this file with autoconf to generate a configuration script.
4 # Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
6 #This file is part of GNU CC.
8 #GNU CC is free software; you can redistribute it and/or modify
9 #it under the terms of the GNU General Public License as published by
10 #the Free Software Foundation; either version 2, or (at your option)
13 #GNU CC is distributed in the hope that it will be useful,
14 #but WITHOUT ANY WARRANTY; without even the implied warranty of
15 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 #GNU General Public License for more details.
18 #You should have received a copy of the GNU General Public License
19 #along with GNU CC; see the file COPYING. If not, write to
20 #the Free Software Foundation, 59 Temple Place - Suite 330,
21 #Boston, MA 02111-1307, USA.
23 # Initialization and defaults
26 AC_CONFIG_HEADER(auto-host.h:config.in)
33 # Check for bogus environment variables.
34 # Test if LIBRARY_PATH contains the notation for the current directory
35 # since this would lead to problems installing/building glibc.
36 # LIBRARY_PATH contains the current directory if one of the following
38 # - one of the terminals (":" and ";") is the first or last sign
39 # - two terminals occur directly after each other
40 # - the path contains an element with a dot in it
41 AC_MSG_CHECKING(LIBRARY_PATH variable)
43 case ${LIBRARY_PATH} in
44 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
45 library_path_setting="contains current directory"
48 library_path_setting="ok"
52 AC_MSG_RESULT($library_path_setting)
53 if test "$library_path_setting" != "ok"; then
55 *** LIBRARY_PATH shouldn't contain the current directory when
56 *** building gcc. Please change the environment variable
57 *** and run configure again.])
60 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
61 # since this would lead to problems installing/building glibc.
62 # GCC_EXEC_PREFIX contains the current directory if one of the following
64 # - one of the terminals (":" and ";") is the first or last sign
65 # - two terminals occur directly after each other
66 # - the path contains an element with a dot in it
67 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
69 case ${GCC_EXEC_PREFIX} in
70 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
71 gcc_exec_prefix_setting="contains current directory"
74 gcc_exec_prefix_setting="ok"
78 AC_MSG_RESULT($gcc_exec_prefix_setting)
79 if test "$gcc_exec_prefix_setting" != "ok"; then
81 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
82 *** building gcc. Please change the environment variable
83 *** and run configure again.])
86 # Check for additional parameters
90 [ --with-gnu-ld arrange to work with GNU ld.],
91 gnu_ld_flag="$with_gnu_ld",
96 [ --with-ld arrange to use the specified ld (full pathname).],
97 DEFAULT_LINKER="$with_ld")
98 if test x"${DEFAULT_LINKER+set}" = x"set"; then
99 if test ! -x "$DEFAULT_LINKER"; then
100 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
101 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
104 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
105 [Define to enable the use of a default linker.])
110 [ --with-gnu-as arrange to work with GNU as.],
111 gas_flag="$with_gnu_as",
115 [ --with-as arrange to use the specified as (full pathname).],
116 DEFAULT_ASSEMBLER="$with_as")
117 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
118 if test ! -x "$DEFAULT_ASSEMBLER"; then
119 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
120 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
123 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
124 [Define to enable the use of a default assembler.])
129 [ --with-stabs arrange to use stabs instead of host debug format.],
135 [ --with-elf arrange to use ELF instead of host debug format.],
139 # Specify the local prefix
141 AC_ARG_WITH(local-prefix,
142 [ --with-local-prefix=DIR specifies directory to put local include.],
143 [case "${withval}" in
144 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
146 *) local_prefix=$with_local_prefix ;;
149 # Default local prefix if it is empty
150 if test x$local_prefix = x; then
151 local_prefix=/usr/local
154 # Build a new-libstdc++ system (ie libstdc++-v3)
155 AC_MSG_CHECKING([for libstdc++ to install])
156 AC_ARG_ENABLE(libstdcxx-v3,
157 [ --enable-libstdcxx-v3
158 enable libstdc++-v3 for building and installation],
159 [enable_libstdcxx_v3="$enableval"], [enable_libstdcxx_v3=yes])
161 if test x$enable_libstdcxx_v3 = xyes; then
171 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
172 # passed in by the toplevel make and thus we'd get different behavior
173 # depending on where we built the sources.
175 # Specify the g++ header file directory
176 AC_ARG_WITH(gxx-include-dir,
177 [ --with-gxx-include-dir=DIR
178 specifies directory to put g++ header files.],
179 [case "${withval}" in
180 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
182 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
185 if test x${gcc_gxx_include_dir} = x; then
186 if test x${enable_version_specific_runtime_libs} = xyes; then
187 gcc_gxx_include_dir='${libsubdir}/include/g++'
189 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
190 changequote(<<, >>)dnl
191 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/g++"-${libstdcxx_interface}
196 # Enable expensive internal checks
197 AC_ARG_ENABLE(checking,
198 [ --enable-checking[=LIST]
199 enable expensive run-time checks. With LIST,
200 enable only specific categories of checks.
201 Categories are: misc,tree,rtl,gc,gcac; default
207 ac_gc_always_collect=
208 case "${enableval}" in
209 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;;
211 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
212 set fnord $enableval; shift
217 misc) ac_checking=1 ;;
218 tree) ac_tree_checking=1 ;;
219 rtl) ac_rtl_checking=1 ;;
220 gc) ac_gc_checking=1 ;;
221 gcac) ac_gc_always_collect=1 ;;
222 *) AC_MSG_ERROR(unknown check category $check) ;;
228 # Enable some checks by default for development versions of GCC
229 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1;])
230 if test x$ac_checking != x ; then
231 AC_DEFINE(ENABLE_CHECKING, 1,
232 [Define if you want more run-time sanity checks. This one gets a grab
233 bag of miscellaneous but relatively cheap checks.])
235 if test x$ac_tree_checking != x ; then
236 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
237 [Define if you want all operations on trees (the basic data
238 structure of the front ends) to be checked for dynamic type safety
239 at runtime. This is moderately expensive.])
241 if test x$ac_rtl_checking != x ; then
242 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
243 [Define if you want all operations on RTL (the basic data structure
244 of the optimizer and back end) to be checked for dynamic type safety
245 at runtime. This is quite expensive.])
247 if test x$ac_gc_checking != x ; then
248 AC_DEFINE(ENABLE_GC_CHECKING, 1,
249 [Define if you want the garbage collector to do object poisoning and
250 other memory allocation checks. This is quite expensive.])
252 if test x$ac_gc_always_collect != x ; then
253 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
254 [Define if you want the garbage collector to operate in maximally
255 paranoid mode, validating the entire heap and collecting garbage at
256 every opportunity. This is extremely expensive.])
261 [ --disable-cpp don't provide a user-visible C preprocessor.],
262 [], [enable_cpp=yes])
264 AC_ARG_WITH(cpp_install_dir,
265 [ --with-cpp-install-dir=DIR
266 install the user visible C preprocessor in DIR
267 (relative to PREFIX) as well as PREFIX/bin.],
268 [if test x$withval = xyes; then
269 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
270 elif test x$withval != xno; then
271 cpp_install_dir=$withval
274 # Link cpplib into the compiler proper, for C/C++/ObjC. Defaults to on.
275 maybe_cpplib=libcpp.a
276 AC_ARG_ENABLE(c-cpplib,
277 [ --enable-c-cpplib link cpplib directly into C and C++ compilers
278 (HIGHLY EXPERIMENTAL).],
279 [if test x$enable_c_cpplib != xyes; then
283 if test x$maybe_cpplib != x ; then
284 AC_DEFINE(USE_CPPLIB, 1,
285 [Define if you want the preprocessor merged into the C and C++ compilers.])
287 AC_SUBST(maybe_cpplib)
289 # Enable Multibyte Characters for C/C++
290 AC_ARG_ENABLE(c-mbchar,
291 [ --enable-c-mbchar Enable multibyte characters for C and C++.],
292 if test x$enable_c_mbchar != xno; then
293 AC_DEFINE(MULTIBYTE_CHARS, 1,
294 [Define if you want the C and C++ compilers to support multibyte
295 character sets for source code.])
299 # Pass with no value to take the default
300 # Pass with a value to specify a thread package
301 AC_ARG_ENABLE(threads,
302 [ --enable-threads enable thread usage for target GCC.
303 --enable-threads=LIB use LIB thread package for target GCC.],,
306 enable_threads_flag=$enable_threads
307 # Check if a valid thread package
308 case x${enable_threads_flag} in
311 target_thread_file='single'
315 target_thread_file=''
317 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
318 xsolaris | xwin32 | xdce | xvxworks | xaix)
319 target_thread_file=$enable_threads_flag
322 echo "$enable_threads is an unknown thread package" 1>&2
327 AC_ARG_ENABLE(objc-gc,
328 [ --enable-objc-gc enable the use of Boehm's garbage collector with
329 the GNU Objective-C runtime.],
330 if test x$enable_objc_gc = xno; then
338 [ --with-dwarf2 force the default debug format to be DWARF2.],
339 dwarf2="$with_dwarf2",
342 AC_ARG_ENABLE(shared,
343 [ --disable-shared don't provide a shared libgcc.],
344 [], [enable_shared=yes])
345 AC_SUBST(enable_shared)
347 # Determine the host, build, and target systems
350 # Find the native compiler
353 # autoconf is lame and doesn't give us any substitution variable for this.
354 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
355 NO_MINUS_C_MINUS_O=yes
357 OUTPUT_OPTION='-o $@'
359 AC_SUBST(NO_MINUS_C_MINUS_O)
360 AC_SUBST(OUTPUT_OPTION)
364 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
365 ac_cv_prog_cc_no_long_long,
366 [save_CFLAGS="$CFLAGS"
367 CFLAGS="-Wno-long-long"
368 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
369 ac_cv_prog_cc_no_long_long=no)
370 CFLAGS="$save_CFLAGS"])
372 if test $ac_cv_prog_cc_no_long_long = yes; then
373 strict1_warn="-pedantic -Wno-long-long"
375 AC_SUBST(strict1_warn)
377 # If the native compiler is GCC, we can enable warnings even in stage1.
378 # That's useful for people building cross-compilers, or just running a
381 if test "x$GCC" = "xyes"; then
382 warn_cflags='$(GCC_WARN_CFLAGS)'
384 AC_SUBST(warn_cflags)
386 # Stage specific cflags for build.
392 stage1_cflags="-Wa,-J"
398 AC_SUBST(stage1_cflags)
402 AC_MSG_CHECKING([whether a default assembler was specified])
403 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
404 if test x"$gas_flag" = x"no"; then
405 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
407 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
413 AC_MSG_CHECKING([whether a default linker was specified])
414 if test x"${DEFAULT_LINKER+set}" = x"set"; then
415 if test x"$gnu_ld_flag" = x"no"; then
416 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
418 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
424 AC_MSG_CHECKING(for GNU C library)
425 AC_CACHE_VAL(gcc_cv_glibc,
427 [#include <features.h>],[
428 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
429 #error Not a GNU C library system
433 AC_MSG_RESULT($gcc_cv_glibc)
434 if test $gcc_cv_glibc = yes; then
435 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
440 # Find some useful tools
452 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
453 fcntl.h unistd.h stab.h sys/file.h sys/time.h \
454 sys/resource.h sys/param.h sys/times.h sys/stat.h \
455 direct.h malloc.h langinfo.h iconv.h)
457 # Check for thread headers.
458 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
459 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
461 # See if GNAT has been installed
462 AC_CHECK_PROG(gnat, gnatbind, yes, no)
464 # Do we have a single-tree copy of texinfo?
465 if test -f $srcdir/../texinfo/Makefile.in; then
466 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
467 gcc_cv_prog_makeinfo_modern=yes
468 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
470 # See if makeinfo has been installed and is modern enough
471 # that we can use it.
472 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
473 [GNU texinfo.* \([0-9][0-9.]*\)],
474 [3.1[2-9] | 3.[2-9][0-9] | 4.* | 1.6[89] | 1.7[0-9]])
477 if test $gcc_cv_prog_makeinfo_modern = no; then
479 *** Makeinfo is missing or too old.
480 *** Info documentation will not be built or installed.])
484 BUILD_INFO=info AC_SUBST(BUILD_INFO)
485 INSTALL_INFO=install-info AC_SUBST(INSTALL_INFO)
489 dnl Don't use AC_PROG_LEX; we insist on flex.
490 dnl LEXLIB is not useful in gcc.
491 if test -f $srcdir/../flex/skel.c; then
492 FLEX='$(objdir)/../flex/flex'
494 AC_CHECK_PROG(FLEX, flex, flex, false)
498 # The -L switch is so bison can find its skeleton file.
499 if test -f $srcdir/../bison/bison.simple; then
500 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
502 AC_CHECK_PROG(BISON, bison, bison, false)
505 # See if the stage1 system preprocessor understands the ANSI C
506 # preprocessor stringification operator.
509 # Use <inttypes.h> only if it exists,
510 # doesn't clash with <sys/types.h>, and declares intmax_t.
511 AC_MSG_CHECKING(for inttypes.h)
512 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
514 [#include <sys/types.h>
515 #include <inttypes.h>],
517 [gcc_cv_header_inttypes_h=yes],
518 gcc_cv_header_inttypes_h=no)])
519 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
520 if test $gcc_cv_header_inttypes_h = yes; then
521 AC_DEFINE(HAVE_INTTYPES_H, 1,
522 [Define if you have a working <inttypes.h> header file.])
526 # Determine if enumerated bitfields are unsigned. ISO C says they can
527 # be either signed or unsigned.
529 AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
530 [AC_TRY_RUN(#include <stdlib.h>
531 enum t { BLAH = 128 } ;
532 struct s_t { enum t member : 8; } s ;
536 if (s.member < 0) exit(1);
539 }, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
540 if test $gcc_cv_enum_bf_unsigned = yes; then
541 AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
542 [Define if enumerated bitfields are treated as unsigned values.])
545 AC_CHECK_FUNCS(strtoul bsearch putenv popen bcopy \
546 strchr strrchr kill getrlimit setrlimit atoll atoq \
547 sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
548 fputs_unlocked getrusage valloc iconv nl_langinfo)
550 AC_CHECK_TYPE(ssize_t, int)
552 # Try to determine the array type of the second argument of getgroups
553 # for the target system (int or gid_t).
555 if test "${target}" = "${build}"; then
556 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
559 # This condition may need some tweaking. It should include all
560 # targets where the array type of the second argument of getgroups
561 # is int and the type of gid_t is not equivalent to int.
562 *-*-sunos* | *-*-ultrix*)
563 TARGET_GETGROUPS_T=int
566 TARGET_GETGROUPS_T=gid_t
570 AC_SUBST(TARGET_GETGROUPS_T)
572 gcc_AC_FUNC_VFPRINTF_DOPRNT
573 gcc_AC_FUNC_PRINTF_PTR
577 # Under some versions of uwin, vfork is notoriously buggy and the test
578 # can hang configure; on other versions, vfork exists just as a stub.
579 # FIXME: This should be removed once vfork in uwin's runtime is fixed.
580 ac_cv_func_vfork_works=no
584 AC_FUNC_MMAP_ANYWHERE
587 # We will need to find libiberty.h and ansidecl.h
588 saved_CFLAGS="$CFLAGS"
589 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
590 gcc_AC_CHECK_DECLS(bcopy \
591 getenv atol sbrk abort atof getcwd getwd \
592 strsignal putc_unlocked fputs_unlocked strstr environ \
593 malloc realloc calloc free basename getopt, , ,[
594 #include "gansidecl.h"
595 #include "system.h"])
597 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
598 #include "gansidecl.h"
600 #ifdef HAVE_SYS_RESOURCE_H
601 #include <sys/resource.h>
605 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
606 CFLAGS="$saved_CFLAGS"
608 # mkdir takes a single argument on some systems.
609 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
619 build_install_headers_dir=install-headers-tar
624 host_truncate_target=
627 # Decode the host machine, then the target machine.
628 # For the host machine, we save the xm_file variable as host_xm_file;
629 # then we decode the target machine and forget everything else
630 # that came from the host machine.
631 for machine in $build $host $target; do
632 . ${srcdir}/config.gcc
635 extra_objs="${host_extra_objs} ${extra_objs}"
637 # Default the target-machine variables that were not explicitly set.
638 if test x"$tm_file" = x
639 then tm_file=$cpu_type/$cpu_type.h; fi
641 if test x$extra_headers = x
642 then extra_headers=; fi
644 if test x"$xm_file" = x
645 then xm_file=$cpu_type/xm-$cpu_type.h; fi
647 if test x$md_file = x
648 then md_file=$cpu_type/$cpu_type.md; fi
650 if test x$out_file = x
651 then out_file=$cpu_type/$cpu_type.c; fi
653 if test x"$tmake_file" = x
654 then tmake_file=$cpu_type/t-$cpu_type
657 if test x"$dwarf2" = xyes
658 then tm_file="$tm_file tm-dwarf2.h"
661 if test x$float_format = x
662 then float_format=i64
665 if test $float_format = none
666 then float_h_file=Makefile.in
667 else float_h_file=float-$float_format.h
670 # Handle cpp installation.
671 if test x$enable_cpp != xno
673 tmake_file="$tmake_file t-install-cpp"
676 # Say what files are being used for the output code and MD file.
677 echo "Using \`$srcdir/config/$out_file' to output insns."
678 echo "Using \`$srcdir/config/$md_file' as machine description file."
681 for f in $tm_file; do
684 if test $count = ax; then
685 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
687 echo "Using the following target machine macro files:"
688 for f in $tm_file; do
689 echo " $srcdir/config/$f"
694 for f in $host_xm_file; do
697 if test $count = ax; then
698 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
700 echo "Using the following host machine macro files:"
701 for f in $host_xm_file; do
702 echo " $srcdir/config/$f"
706 if test "$host_xm_file" != "$build_xm_file"; then
708 for f in $build_xm_file; do
711 if test $count = ax; then
712 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
714 echo "Using the following build machine macro files:"
715 for f in $build_xm_file; do
716 echo " $srcdir/config/$f"
721 if test x$thread_file = x; then
722 if test x$target_thread_file != x; then
723 thread_file=$target_thread_file
729 # Set up the header files.
730 # $links is the list of header files to create.
731 # $vars is the list of shell variables with file names to include.
732 # auto-host.h is the file containing items generated by autoconf and is
733 # the first file included by config.h.
735 host_xm_file="auto-host.h gansidecl.h ${host_xm_file} hwint.h"
737 # If host=build, it is correct to have hconfig include auto-host.h
738 # as well. If host!=build, we are in error and need to do more
739 # work to find out the build config parameters.
740 if test x$host = x$build
742 build_xm_file="auto-host.h gansidecl.h ${build_xm_file} hwint.h"
744 # We create a subdir, then run autoconf in the subdir.
745 # To prevent recursion we set host and build for the new
746 # invocation of configure to the build for this invocation
753 /*) realsrcdir=${srcdir};;
754 *) realsrcdir=../${srcdir};;
756 CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
757 --target=$target --host=$build --build=$build
759 # We just finished tests for the build machine, so rename
760 # the file auto-build.h in the gcc directory.
761 mv auto-host.h ../auto-build.h
764 build_xm_file="auto-build.h gansidecl.h ${build_xm_file} hwint.h"
767 xm_file="gansidecl.h ${xm_file}"
768 tm_file="gansidecl.h ${tm_file}"
770 vars="host_xm_file tm_file tm_p_file xm_file build_xm_file"
771 links="config.h tm.h tm_p.h tconfig.h hconfig.h"
772 defines="host_xm_defines null_defines null_defines xm_defines build_xm_defines"
775 if test -f config.status; then mv -f config.status config.bak; fi
778 while test -n "$vars"
780 set $vars; var=$1; shift; vars=$*
781 set $links; link=$1; shift; links=$*
782 set $defines; define=$1; shift; defines=$*
785 # Make sure the file is created, even if it is empty.
788 # Define TARGET_CPU_DEFAULT if the system wants one.
789 # This substitutes for lots of *.h files.
790 if test "$target_cpu_default" != "" -a $link = tm.h
792 echo "#define TARGET_CPU_DEFAULT ($target_cpu_default)" >>$link
796 echo "#ifndef GENERATOR_FILE" >>$link
797 echo "#include \"insn-codes.h\"" >>$link
798 echo "#endif" >>$link
801 for file in `eval echo '$'$var`; do
803 auto-host.h | auto-build.h )
806 echo '#ifdef IN_GCC' >>$link
809 echo "#include \"$file\"" >>$link
811 auto-host.h | auto-build.h )
814 echo '#endif' >>$link
819 for def in `eval echo '$'$define`; do
820 echo "#ifndef $def" >>$link
821 echo "#define $def" >>$link
822 echo "#endif" >>$link
826 # Truncate the target if necessary
827 if test x$host_truncate_target != x; then
828 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
831 # Get the version trigger filename from the toplevel
832 if test "${with_gcc_version_trigger+set}" = set; then
833 gcc_version_trigger=$with_gcc_version_trigger
835 gcc_version_trigger=${srcdir}/version.c
838 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
839 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
841 # Compile in configure arguments.
842 if test -f configargs.h ; then
843 # Being re-configured.
844 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
845 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
847 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
849 cat > configargs.h <<EOF
850 /* Generated automatically. */
851 static const char configuration_arguments[] = "$gcc_config_arguments";
855 # Internationalization
857 VERSION="$gcc_version"
858 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
859 [Define to the name of the distribution.])
860 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
861 [Define to the version of the distribution.])
867 # Enable NLS support by default
869 [ --enable-nls use Native Language Support (default)],
872 # if cross compiling, disable NLS support.
873 # It's not worth the trouble, at least for now.
875 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
876 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
880 # if NLS is enabled, also enable check in po subdir
881 if test $enable_nls = yes; then
890 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
892 # Windows32 Registry support for specifying GCC installation paths.
893 AC_ARG_ENABLE(win32-registry,
894 [ --disable-win32-registry
895 Disable lookup of installation paths in the
896 Registry on Windows hosts.
897 --enable-win32-registry Enable registry lookup (default).
898 --enable-win32-registry=KEY
899 Use KEY instead of GCC version as the last portion
900 of the registry key.],,)
902 AC_MSG_CHECKING(whether windows registry support is requested)
903 if test x$enable_win32_registry != xno; then
904 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
905 [Define to 1 if installation paths should be looked up in Windows32
906 Registry. Ignored on non windows32 hosts.])
912 # Check if user specified a different registry key.
913 case x${enable_win32_registry} in
916 gcc_cv_win32_registry_key="$VERSION"
919 # no registry lookup.
920 gcc_cv_win32_registry_key=''
923 # user-specified key.
924 gcc_cv_win32_registry_key="$enable_win32_registry"
928 if test x$enable_win32_registry != xno; then
929 AC_MSG_CHECKING(registry key on windows hosts)
930 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
931 [Define to be the last portion of registry key on windows hosts.])
932 AC_MSG_RESULT($gcc_cv_win32_registry_key)
935 # Get an absolute path to the GCC top-level source directory
941 # Conditionalize the makefile for this host machine.
942 # Make-host contains the concatenation of all host makefile fragments
943 # [there can be more than one]. This file is built by configure.frag.
944 host_overrides=Make-host
946 for f in .. ${host_xmake_file}
948 if test -f ${srcdir}/config/$f
950 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
954 # Conditionalize the makefile for this target machine.
955 # Make-target contains the concatenation of all host makefile fragments
956 # [there can be more than one]. This file is built by configure.frag.
957 target_overrides=Make-target
959 for f in .. ${tmake_file}
961 if test -f ${srcdir}/config/$f
963 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
967 # If the host doesn't support symlinks, modify CC in
968 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
969 # Otherwise, we can use "CC=$(CC)".
971 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
973 cc_set_by_configure="\$(CC)"
974 quoted_cc_set_by_configure="\$(CC)"
975 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
978 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
980 symbolic_link="cp -p"
984 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
985 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
986 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
990 out_object_file=`basename $out_file .c`.o
993 for f in $tm_file; do
996 tm_file_list="${tm_file_list} $f" ;;
997 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1002 for f in $host_xm_file; do
1004 auto-host.h | gansidecl.h | hwint.h )
1005 host_xm_file_list="${host_xm_file_list} $f" ;;
1006 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1011 for f in $build_xm_file; do
1013 auto-build.h | auto-host.h | gansidecl.h | hwint.h )
1014 build_xm_file_list="${build_xm_file_list} $f" ;;
1015 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1019 # Define macro CROSS_COMPILE in compilation
1020 # if this is a cross-compiler.
1021 # Also use all.cross instead of all.internal
1022 # and add cross-make to Makefile.
1023 cross_overrides="/dev/null"
1024 if test x$host != x$target
1026 cross_defines="CROSS=-DCROSS_COMPILE"
1027 cross_overrides="${topdir}/cross-make"
1030 # If this is a cross-compiler that does not
1031 # have its own set of headers then define
1034 # If this is using newlib, then define inhibit_libc in
1035 # LIBGCC2_CFLAGS. This will cause __eprintf to be left out of
1036 # libgcc.a, but that's OK because newlib should have its own version of
1039 if [test x$host != x$target] && [test x$with_headers = x]; then
1040 inhibit_libc=-Dinhibit_libc
1042 if [test x$with_newlib = xyes]; then
1043 inhibit_libc=-Dinhibit_libc
1046 AC_SUBST(inhibit_libc)
1048 # When building gcc with a cross-compiler, we need to fix a few things.
1049 # This must come after cross-make as we want all.build to override
1051 build_overrides="/dev/null"
1052 if test x$build != x$host
1054 build_overrides="${topdir}/build-make"
1057 # Expand extra_headers to include complete path.
1058 # This substitutes for lots of t-* files.
1060 if test "x$extra_headers" = x
1063 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1064 for file in $extra_headers;
1066 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1070 if test x$use_collect2 = xno; then
1074 # Add a definition of USE_COLLECT2 if system wants one.
1075 # Also tell toplev.c what to do.
1076 # This substitutes for lots of t-* files.
1077 if test x$use_collect2 = x
1082 will_use_collect2="collect2"
1083 maybe_use_collect2="-DUSE_COLLECT2"
1086 # If we have gas in the build tree, make a link to it.
1087 if test -f ../gas/Makefile; then
1088 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1091 # If we have nm in the build tree, make a link to it.
1092 if test -f ../binutils/Makefile; then
1093 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1096 # If we have ld in the build tree, make a link to it.
1097 if test -f ../ld/Makefile; then
1098 # if test x$use_collect2 = x; then
1099 # rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1101 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1105 # Figure out what assembler we will be using.
1106 AC_MSG_CHECKING(what assembler to use)
1108 gcc_cv_gas_major_version=
1109 gcc_cv_gas_minor_version=
1110 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1111 if test -x "$DEFAULT_ASSEMBLER"; then
1112 gcc_cv_as="$DEFAULT_ASSEMBLER"
1113 elif test -x "$AS"; then
1115 elif test -x as$host_exeext; then
1116 # Build using assembler in the current directory.
1117 gcc_cv_as=./as$host_exeext
1118 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1119 # Single tree build which includes gas.
1120 for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1123 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1125 if test x$gcc_cv_gas_version != x; then
1130 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1131 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1135 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1137 # Search the same directories that the installed compiler will
1138 # search. Else we may find the wrong assembler and lose. If we
1139 # do not find a suitable assembler binary, then try the user's
1142 # Also note we have to check MD_EXEC_PREFIX before checking the
1143 # user's path. Unfortunately, there is no good way to get at the
1144 # value of MD_EXEC_PREFIX here. So we do a brute force search
1145 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1146 # to be fixed as part of the make/configure rewrite too.
1148 if test "x$exec_prefix" = xNONE; then
1149 if test "x$prefix" = xNONE; then
1150 test_prefix=/usr/local
1155 test_prefix=$exec_prefix
1158 # If the loop below does not find an assembler, then use whatever
1159 # one we can find in the users's path.
1163 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1164 $test_prefix/lib/gcc-lib/$target \
1165 /usr/lib/gcc/$target/$gcc_version \
1166 /usr/lib/gcc/$target \
1167 $test_prefix/$target/bin/$target/$gcc_version \
1168 $test_prefix/$target/bin \
1173 /bsd43/usr/lib/cmplrs/cc \
1174 /usr/cross64/usr/bin \
1175 /usr/lib/cmplrs/cc \
1176 /sysv/usr/lib/cmplrs/cc \
1177 /svr4/usr/lib/cmplrs/cc \
1180 for dir in $test_dirs; do
1181 if test -f $dir/as$host_exeext; then
1182 gcc_cv_as=$dir/as$host_exeext
1187 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1188 AC_MSG_RESULT("newly built gas")
1190 AC_MSG_RESULT($gcc_cv_as)
1193 # Figure out what nm we will be using.
1194 AC_MSG_CHECKING(what nm to use)
1195 if test -x nm$host_exeext; then
1196 gcc_cv_nm=./nm$host_exeext
1197 elif test x$host = x$target; then
1199 gcc_cv_nm=nm$host_exeext
1201 AC_MSG_RESULT($gcc_cv_nm)
1203 # Figure out what assembler alignment features are present.
1204 AC_MSG_CHECKING(assembler alignment features)
1205 gcc_cv_as_alignment_features=none
1206 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1207 # Gas version 2.6 and later support for .balign and .p2align.
1208 # bytes to skip when using .p2align.
1209 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1210 gcc_cv_as_alignment_features=".balign and .p2align"
1211 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1213 # Gas version 2.8 and later support specifying the maximum
1214 # bytes to skip when using .p2align.
1215 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1216 gcc_cv_as_alignment_features=".p2align including maximum skip"
1217 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1219 elif test x$gcc_cv_as != x; then
1220 # Check if we have .balign and .p2align
1221 echo ".balign 4" > conftest.s
1222 echo ".p2align 2" >> conftest.s
1223 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1224 gcc_cv_as_alignment_features=".balign and .p2align"
1225 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1227 rm -f conftest.s conftest.o
1228 # Check if specifying the maximum bytes to skip when
1229 # using .p2align is supported.
1230 echo ".p2align 4,,7" > conftest.s
1231 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1232 gcc_cv_as_alignment_features=".p2align including maximum skip"
1233 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1235 rm -f conftest.s conftest.o
1237 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1239 AC_MSG_CHECKING(assembler subsection support)
1240 gcc_cv_as_subsections=no
1241 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1242 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1243 gcc_cv_as_subsections="working .subsection -1"
1245 elif test x$gcc_cv_as != x; then
1246 # Check if we have .subsection
1247 echo ".subsection 1" > conftest.s
1248 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1249 gcc_cv_as_subsections=".subsection"
1250 if test x$gcc_cv_nm != x; then
1251 cat > conftest.s <<EOF
1252 conftest_label1: .word 0
1254 conftest_label2: .word 0
1257 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1258 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1259 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1260 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1263 gcc_cv_as_subsections="working .subsection -1"
1268 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1270 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1271 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1272 [Define if your assembler supports .subsection and .subsection -1 starts
1273 emitting at the beginning of your section.])
1275 AC_MSG_RESULT($gcc_cv_as_subsections)
1277 AC_MSG_CHECKING(assembler weak support)
1279 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1280 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1281 gcc_cv_as_weak="yes"
1283 elif test x$gcc_cv_as != x; then
1284 # Check if we have .weak
1285 echo " .weak foobar" > conftest.s
1286 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1287 gcc_cv_as_weak="yes"
1289 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1291 if test x"$gcc_cv_as_weak" = xyes; then
1292 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1294 AC_MSG_RESULT($gcc_cv_as_weak)
1296 AC_MSG_CHECKING(assembler hidden support)
1298 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1299 if test "$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
1300 gcc_cv_as_hidden="yes"
1302 elif test x$gcc_cv_as != x; then
1303 # Check if we have .hidden
1304 echo " .hidden foobar" > conftest.s
1305 echo "foobar:" >> conftest.s
1306 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1307 gcc_cv_as_hidden="yes"
1309 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1311 if test x"$gcc_cv_as_hidden" = xyes; then
1312 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1313 [Define if your assembler supports .hidden.])
1315 AC_MSG_RESULT($gcc_cv_as_hidden)
1319 AC_CACHE_CHECK([assembler .register pseudo-op support],
1320 gcc_cv_as_register_pseudo_op, [
1321 gcc_cv_as_register_pseudo_op=unknown
1322 if test x$gcc_cv_as != x; then
1323 # Check if we have .register
1324 echo ".register %g2, #scratch" > conftest.s
1325 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1326 gcc_cv_as_register_pseudo_op=yes
1328 gcc_cv_as_register_pseudo_op=no
1330 rm -f conftest.s conftest.o
1333 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1334 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1335 [Define if your assembler supports .register.])
1338 AC_CACHE_CHECK([assembler supports -relax],
1339 gcc_cv_as_relax_opt, [
1340 gcc_cv_as_relax_opt=unknown
1341 if test x$gcc_cv_as != x; then
1342 # Check if gas supports -relax
1343 echo ".text" > conftest.s
1344 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1345 gcc_cv_as_relax_opt=yes
1347 gcc_cv_as_relax_opt=no
1349 rm -f conftest.s conftest.o
1352 if test "x$gcc_cv_as_relax_opt" = xyes; then
1353 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1354 [Define if your assembler supports -relax option.])
1359 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1360 gcc_cv_as_flags64, [
1361 if test -n "$gcc_cv_as"; then
1362 echo ".xword foo" > conftest.s
1363 gcc_cv_as_flags64=no
1364 for flag in "-xarch=v9" "-64 -Av9"; do
1365 if $gcc_cv_as $flag -o conftest.o conftest.s \
1366 > /dev/null 2>&1; then
1367 gcc_cv_as_flags64=$flag
1371 rm -f conftest.s conftest.o
1373 if test "$gas" = yes; then
1374 gcc_cv_as_flags64="-64 -Av9"
1376 gcc_cv_as_flags64="-xarch=v9"
1380 if test "x$gcc_cv_as_flags64" = xno; then
1382 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1383 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1386 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1387 [Define if the assembler supports 64bit sparc.])
1390 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1394 if test "x$gcc_cv_as_flags64" != xno; then
1395 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1396 gcc_cv_as_offsetable_lo10, [
1397 gcc_cv_as_offsetable_lo10=unknown
1398 if test "x$gcc_cv_as" != x; then
1399 # Check if assembler has offsetable %lo()
1400 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1401 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1402 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1404 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1405 > /dev/null 2>&1; then
1406 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1407 gcc_cv_as_offsetable_lo10=no
1409 gcc_cv_as_offsetable_lo10=yes
1412 gcc_cv_as_offsetable_lo10=no
1414 rm -f conftest.s conftest.o conftest1.s conftest1.o
1417 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1418 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1419 [Define if your assembler supports offsetable %lo().])
1427 AC_MSG_CHECKING(assembler instructions)
1428 gcc_cv_as_instructions=
1429 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1430 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1431 gcc_cv_as_instructions="filds fists"
1433 elif test x$gcc_cv_as != x; then
1434 set "filds fists" "filds mem; fists mem"
1437 echo "$2" > conftest.s
1438 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1439 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1443 rm -f conftest.s conftest.o
1445 if test x"$gcc_cv_as_instructions" != x; then
1446 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1448 AC_MSG_RESULT($gcc_cv_as_instructions)
1452 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1453 gcc_cv_as_dwarf2_debug_line=no
1454 # ??? Not all targets support dwarf2 debug_line, even within a version
1455 # of gas. Moreover, we need to emit a valid instruction to trigger any
1456 # info to the output file. So, as supported targets are added to gas 2.11,
1457 # add some instruction here to (also) show we expect this might work.
1458 # ??? Once 2.11 is released, probably need to add first known working
1459 # version to the per-target configury.
1461 i?86*-*-* | mips*-*-* | alpha*-*-* | sparc*-*-*)
1468 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1470 if test "$gcc_cv_gas_major_version" -eq 2 \
1471 -a "$gcc_cv_gas_minor_version" -ge 11 \
1472 -o "$gcc_cv_gas_major_version" -gt 2 \
1473 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1474 && test x"$insn" != x ; then
1475 gcc_cv_as_dwarf2_debug_line="yes"
1477 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1478 echo ' .file 0 "conftest.s"' > conftest.s
1479 echo ' .loc 0 3 0' >> conftest.s
1480 echo " $insn" >> conftest.s
1481 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1482 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1483 gcc_cv_as_dwarf2_debug_line="yes"
1485 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1487 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1488 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1489 [Define if your assembler supports dwarf2 .file/.loc directives.])
1491 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1493 # Figure out what language subdirectories are present.
1494 # Look if the user specified --enable-languages="..."; if not, use
1495 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1497 if test x"${enable_languages+set}" != xset; then
1498 if test x"${LANGUAGES+set}" = xset; then
1499 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1501 enable_languages=all
1504 if test x"${enable_languages}" = x; then
1505 AC_MSG_ERROR([--enable-languages needs at least one argument])
1509 for lang in ${srcdir}/*/config-lang.in ..
1513 # The odd quoting in the next line works around
1514 # an apparent bug in bash 1.12 on linux.
1516 ${srcdir}/[*]/config-lang.in) ;;
1518 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1519 if test "x$lang_alias" = x
1521 echo "$lang doesn't set \$language." 1>&2
1524 if test x"${enable_languages}" = xall && test x"${lang_alias}" != xCHILL; then
1527 case "${enable_languages}" in
1528 ${lang_alias} | "${lang_alias},"* | *",${lang_alias},"* | *",${lang_alias}" )
1536 if test x"${add_this_lang}" = xyes; then
1538 ${srcdir}/ada/config-lang.in)
1539 if test x$gnat = xyes ; then
1540 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1544 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1553 # Make gthr-default.h if we have a thread file.
1555 if test $thread_file != single; then
1556 rm -f gthr-default.h
1557 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1558 gthread_flags=-DHAVE_GTHR_DEFAULT
1560 AC_SUBST(gthread_flags)
1562 # Find out what GC implementation we want, or may, use.
1564 [ --with-gc={simple,page} Choose the garbage collection mechanism to use
1565 with the compiler.],
1571 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1574 [if test $ac_cv_func_mmap_anywhere = yes \
1575 || test $ac_cv_func_valloc = yes; then
1581 echo "Using $GGC for garbage collection."
1583 # Use the system's zlib library.
1585 zlibinc="-I\$(srcdir)/../zlib"
1586 AC_ARG_WITH(system-zlib,
1587 [ --with-system-zlib use installed libz],
1594 # Build a new-abi (c++) system
1595 AC_ARG_ENABLE(new-gxx-abi,
1596 [ --enable-new-gxx-abi
1597 select the new abi for g++. You must select an ABI
1598 at configuration time, so that the correct runtime
1599 support is built. You cannot mix ABIs.],
1601 enable_new_gxx_abi=yes)
1603 if test x$enable_new_gxx_abi = xyes; then
1604 AC_DEFINE(ENABLE_NEW_GXX_ABI, 1,
1605 [Define if you want to always select the new-abi for g++.])
1606 GXX_ABI_FLAG='-fnew-abi'
1610 AC_SUBST(GXX_ABI_FLAG)
1612 AC_DEFINE_UNQUOTED(ENABLE_STD_NAMESPACE, $ac_esn,
1613 [Define to 1 if you want to enable namespaces (-fhonor-std) by default.])
1614 AC_SUBST(HAVE_LIBSTDCXX_V3)
1616 dnl Very limited version of automake's enable-maintainer-mode
1618 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1619 dnl maintainer-mode is disabled by default
1620 AC_ARG_ENABLE(maintainer-mode,
1621 [ --enable-maintainer-mode enable make rules and dependencies not useful
1622 (and sometimes confusing) to the casual installer],
1623 maintainer_mode=$enableval,
1626 AC_MSG_RESULT($maintainer_mode)
1628 if test "$maintainer_mode" = "yes"; then
1635 # Make empty files to contain the specs and options for each language.
1636 # Then add #include lines to for a compiler that has specs and/or options.
1641 rm -f specs.h options.h gencheck.h
1642 touch specs.h options.h gencheck.h
1643 for subdir in . $subdirs
1645 if test -f $srcdir/$subdir/lang-specs.h; then
1646 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1647 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1649 if test -f $srcdir/$subdir/lang-options.h; then
1650 echo "#include \"$subdir/lang-options.h\"" >>options.h
1651 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1653 if test -f $srcdir/$subdir/$subdir-tree.def; then
1654 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1655 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1659 # These (without "all_") are set in each config-lang.in.
1660 # `language' must be a single word so is spelled singularly.
1666 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1667 # List of language makefile fragments.
1672 # Add the language fragments.
1673 # Languages are added via two mechanisms. Some information must be
1674 # recorded in makefile variables, these are defined in config-lang.in.
1675 # We accumulate them and plug them into the main Makefile.
1676 # The other mechanism is a set of hooks for each of the main targets
1677 # like `clean', `install', etc.
1679 language_fragments="Make-lang"
1680 language_hooks="Make-hooks"
1682 for s in .. $subdirs
1694 . ${srcdir}/$s/config-lang.in
1695 if test "x$language" = x
1697 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1700 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1701 if test -f ${srcdir}/$s/Makefile.in
1702 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1704 all_languages="$all_languages $language"
1705 if test "x$boot_language" = xyes
1707 all_boot_languages="$all_boot_languages $language"
1709 all_compilers="$all_compilers $compilers"
1710 all_stagestuff="$all_stagestuff $stagestuff"
1711 all_diff_excludes="$all_diff_excludes $diff_excludes"
1712 all_headers="$all_headers $headers"
1713 all_outputs="$all_outputs $outputs"
1714 all_lib2funcs="$all_lib2funcs $lib2funcs"
1718 # Since we can't use `::' targets, we link each language in
1719 # with a set of hooks, reached indirectly via lang.${target}.
1723 target_list="all.build all.cross start.encap rest.encap \
1725 install-normal install-common install-info install-man \
1727 mostlyclean clean distclean extraclean maintainer-clean \
1728 stage1 stage2 stage3 stage4"
1729 for t in $target_list
1732 for lang in .. $all_languages
1734 if test $lang != ".."; then
1738 echo "lang.$t: $x" >> Make-hooks
1741 # If we're not building in srcdir, create .gdbinit.
1743 if test ! -f Makefile.in; then
1744 echo "dir ." > .gdbinit
1745 echo "dir ${srcdir}" >> .gdbinit
1746 if test x$gdb_needs_out_file_path = xyes
1748 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1750 if test "x$subdirs" != x; then
1753 echo "dir ${srcdir}/$s" >> .gdbinit
1756 echo "source ${srcdir}/.gdbinit" >> .gdbinit
1759 # Define variables host_canonical and build_canonical
1760 # because some Cygnus local changes in the Makefile depend on them.
1761 build_canonical=${build}
1762 host_canonical=${host}
1764 if test "${host}" != "${target}" ; then
1765 target_subdir=${target}/
1767 AC_SUBST(build_canonical)
1768 AC_SUBST(host_canonical)
1769 AC_SUBST(target_subdir)
1771 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1772 # absolute path for gcc_tooldir based on inserting the number of up-directory
1773 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1774 # $(libsubdir)/@(unlibsubdir) based path.
1775 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1776 # make and thus we'd get different behavior depending on where we built the
1778 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1779 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1781 changequote(<<, >>)dnl
1782 # An explanation of the sed strings:
1783 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
1784 # -e 's|/$||' match a trailing forward slash and eliminates it
1785 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
1786 # -e 's|/[^/]*|../|g' replaces each occurance of /<directory> with ../
1788 # (*) Note this pattern overwrites the first character of the string
1789 # with a forward slash if one is not already present. This is not a
1790 # problem because the exact names of the sub-directories concerned is
1791 # unimportant, just the number of them matters.
1793 # The practical upshot of these patterns is like this:
1795 # prefix exec_prefix result
1796 # ------ ----------- ------
1798 # /foo/ /foo/bar ../
1799 # /foo /foo/bar/ ../
1800 # /foo/ /foo/bar/ ../
1801 # /foo /foo/bar/ugg ../../
1804 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1805 changequote([, ])dnl
1807 AC_SUBST(gcc_tooldir)
1810 # Nothing to do for FLOAT_H, float_format already handled.
1814 # Process the language and host/target makefile fragments.
1815 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1817 # Substitute configuration variables
1819 AC_SUBST(all_boot_languages)
1820 AC_SUBST(all_compilers)
1821 AC_SUBST(all_diff_excludes)
1822 AC_SUBST(all_headers)
1823 AC_SUBST(all_lang_makefiles)
1824 AC_SUBST(all_languages)
1825 AC_SUBST(all_lib2funcs)
1826 AC_SUBST(all_stagestuff)
1827 AC_SUBST(build_exeext)
1828 AC_SUBST(build_install_headers_dir)
1829 AC_SUBST(build_xm_file_list)
1830 AC_SUBST(cc_set_by_configure)
1831 AC_SUBST(quoted_cc_set_by_configure)
1832 AC_SUBST(cpp_install_dir)
1833 AC_SUBST(dep_host_xmake_file)
1834 AC_SUBST(dep_tmake_file)
1835 AC_SUBST(extra_c_flags)
1836 AC_SUBST(extra_headers_list)
1837 AC_SUBST(extra_objs)
1838 AC_SUBST(extra_parts)
1839 AC_SUBST(extra_passes)
1840 AC_SUBST(extra_programs)
1841 AC_SUBST(float_h_file)
1842 AC_SUBST(gcc_config_arguments)
1843 AC_SUBST(gcc_gxx_include_dir)
1844 AC_SUBST(gcc_version)
1845 AC_SUBST(gcc_version_full)
1846 AC_SUBST(gcc_version_trigger)
1847 AC_SUBST(host_exeext)
1848 AC_SUBST(host_extra_gcc_objs)
1849 AC_SUBST(host_xm_file_list)
1851 AC_SUBST(lang_options_files)
1852 AC_SUBST(lang_specs_files)
1853 AC_SUBST(lang_tree_files)
1854 AC_SUBST(local_prefix)
1855 AC_SUBST(maybe_use_collect2)
1857 AC_SUBST(objc_boehm_gc)
1859 AC_SUBST(out_object_file)
1860 AC_SUBST(stage_prefix_set_by_configure)
1861 AC_SUBST(symbolic_link)
1862 AC_SUBST(thread_file)
1863 AC_SUBST(tm_file_list)
1864 AC_SUBST(will_use_collect2)
1865 AC_SUBST(c_target_objs)
1866 AC_SUBST(cxx_target_objs)
1869 AC_SUBST_FILE(target_overrides)
1870 AC_SUBST_FILE(host_overrides)
1871 AC_SUBST(cross_defines)
1872 AC_SUBST_FILE(cross_overrides)
1873 AC_SUBST_FILE(build_overrides)
1874 AC_SUBST_FILE(language_fragments)
1875 AC_SUBST_FILE(language_hooks)
1877 # Echo that links are built
1878 if test x$host = x$target
1886 if test x$host != x$build
1888 str3=" on a $build system"
1891 if test "x$str2" != x || test "x$str3" != x
1896 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
1898 if test "x$str2" != x || test "x$str3" != x
1900 echo " ${str2}${str3}." 1>&2
1903 # Truncate the target if necessary
1904 if test x$host_truncate_target != x; then
1905 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1908 # Configure the subdirectories
1909 # AC_CONFIG_SUBDIRS($subdirs)
1911 # Create the Makefile
1912 # and configure language subdirectories
1913 AC_OUTPUT($all_outputs,
1915 case x$CONFIG_HEADERS in
1916 xauto-host.h:config.in)
1919 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
1920 # bootstrapping and the installation procedure can still use
1921 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
1922 # FLAGS_TO_PASS has been modified to solve the problem there.
1923 # This is virtually a duplicate of what happens in configure.lang; we do
1924 # an extra check to make sure this only happens if ln -s can be used.
1925 if test "$symbolic_link" = "ln -s"; then
1926 for d in .. ${subdirs} ; do
1927 if test $d != ..; then
1930 for t in stage1 stage2 stage3 stage4 include
1933 $symbolic_link ../$t $t 2>/dev/null
1939 # Avoid having to add intl to our include paths.
1940 if test -f intl/libintl.h; then
1941 echo creating libintl.h
1942 echo '#include "intl/libintl.h"' >libintl.h
1949 target_alias='${target_alias}'
1951 subdirs='${subdirs}'
1952 symbolic_link='${symbolic_link}'
1953 program_transform_set='${program_transform_set}'
1954 program_transform_name='${program_transform_name}'
1955 dep_host_xmake_file='${dep_host_xmake_file}'
1956 host_xmake_file='${host_xmake_file}'
1957 dep_tmake_file='${dep_tmake_file}'
1958 tmake_file='${tmake_file}'
1959 thread_file='${thread_file}'
1960 gcc_config_arguments='${gcc_config_arguments}'
1961 gcc_version='${gcc_version}'
1962 gcc_version_full='${gcc_version_full}'
1963 gcc_version_trigger='${gcc_version_trigger}'
1964 local_prefix='${local_prefix}'
1965 build_install_headers_dir='${build_install_headers_dir}'
1966 build_exeext='${build_exeext}'
1967 host_exeext='${host_exeext}'
1968 out_file='${out_file}'
1969 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
1970 SET_MAKE='${SET_MAKE}'
1971 target_list='${target_list}'
1972 target_overrides='${target_overrides}'
1973 host_overrides='${host_overrides}'
1974 cross_defines='${cross_defines}'
1975 cross_overrides='${cross_overrides}'
1976 build_overrides='${build_overrides}'
1977 cpp_install_dir='${cpp_install_dir}'