1 # configure.in for GNU CC
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 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$local_prefix = x; then
151 local_prefix=/usr/local
154 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
155 # passed in by the toplevel make and thus we'd get different behavior
156 # depending on where we built the sources.
158 # Specify the g++ header file directory
159 AC_ARG_WITH(gxx-include-dir,
160 [ --with-gxx-include-dir=DIR
161 specifies directory to put g++ header files.],
162 [case "${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 | 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$enable_objc_gc = xno; then
312 [ --with-dwarf2 force the default debug format to be DWARF2.],
313 dwarf2="$with_dwarf2",
316 AC_ARG_ENABLE(shared,
317 [ --disable-shared don't provide a shared libgcc.],
318 [], [enable_shared=yes])
319 AC_SUBST(enable_shared)
321 # Determine the host, build, and target systems
324 # Find the native compiler
327 # autoconf is lame and doesn't give us any substitution variable for this.
328 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
329 NO_MINUS_C_MINUS_O=yes
331 OUTPUT_OPTION='-o $@'
333 AC_SUBST(NO_MINUS_C_MINUS_O)
334 AC_SUBST(OUTPUT_OPTION)
338 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
339 ac_cv_prog_cc_no_long_long,
340 [save_CFLAGS="$CFLAGS"
341 CFLAGS="-Wno-long-long"
342 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
343 ac_cv_prog_cc_no_long_long=no)
344 CFLAGS="$save_CFLAGS"])
346 if test $ac_cv_prog_cc_no_long_long = yes; then
347 strict1_warn="-pedantic -Wno-long-long"
349 AC_SUBST(strict1_warn)
351 # If the native compiler is GCC, we can enable warnings even in stage1.
352 # That's useful for people building cross-compilers, or just running a
355 if test "x$GCC" = "xyes"; then
356 warn_cflags='$(GCC_WARN_CFLAGS)'
358 AC_SUBST(warn_cflags)
360 # Stage specific cflags for build.
366 stage1_cflags="-Wa,-J"
372 AC_SUBST(stage1_cflags)
376 AC_MSG_CHECKING([whether a default assembler was specified])
377 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
378 if test x"$gas_flag" = x"no"; then
379 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
381 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
387 AC_MSG_CHECKING([whether a default linker was specified])
388 if test x"${DEFAULT_LINKER+set}" = x"set"; then
389 if test x"$gnu_ld_flag" = x"no"; then
390 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
392 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
398 AC_MSG_CHECKING(for GNU C library)
399 AC_CACHE_VAL(gcc_cv_glibc,
401 [#include <features.h>],[
402 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
403 #error Not a GNU C library system
407 AC_MSG_RESULT($gcc_cv_glibc)
408 if test $gcc_cv_glibc = yes; then
409 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
414 # Find some useful tools
426 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
427 fcntl.h unistd.h stab.h sys/file.h sys/time.h \
428 sys/resource.h sys/param.h sys/times.h sys/stat.h \
429 direct.h malloc.h langinfo.h iconv.h)
431 # Check for thread headers.
432 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
433 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
435 # See if GNAT has been installed
436 AC_CHECK_PROG(gnat, gnatbind, yes, no)
438 # See if we have the mktemp command.
439 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
441 # Do we have a single-tree copy of texinfo?
442 if test -f $srcdir/../texinfo/Makefile.in; then
443 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
444 gcc_cv_prog_makeinfo_modern=yes
445 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
447 # See if makeinfo has been installed and is modern enough
448 # that we can use it.
449 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
450 [GNU texinfo.* \([0-9][0-9.]*\)],
454 if test $gcc_cv_prog_makeinfo_modern = no; then
456 *** Makeinfo is missing or too old.
457 *** Info documentation will not be built.])
460 BUILD_INFO=info AC_SUBST(BUILD_INFO)
463 # Is pod2man recent enough to regenerate manpages?
464 AC_MSG_CHECKING([for recent Pod::Man])
465 if perl -e 'use 1.10 Pod::Man' >/dev/null 2>&1; then
467 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
474 dnl Don't use AC_PROG_LEX; we insist on flex.
475 dnl LEXLIB is not useful in gcc.
476 if test -f $srcdir/../flex/skel.c; then
477 FLEX='$(objdir)/../flex/flex'
479 AC_CHECK_PROG(FLEX, flex, flex, false)
483 # The -L switch is so bison can find its skeleton file.
484 if test -f $srcdir/../bison/bison.simple; then
485 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
487 AC_CHECK_PROG(BISON, bison, bison, false)
490 # See if the stage1 system preprocessor understands the ANSI C
491 # preprocessor stringification operator.
494 # Use <inttypes.h> only if it exists,
495 # doesn't clash with <sys/types.h>, and declares intmax_t.
496 AC_MSG_CHECKING(for inttypes.h)
497 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
499 [#include <sys/types.h>
500 #include <inttypes.h>],
502 [gcc_cv_header_inttypes_h=yes],
503 gcc_cv_header_inttypes_h=no)])
504 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
505 if test $gcc_cv_header_inttypes_h = yes; then
506 AC_DEFINE(HAVE_INTTYPES_H, 1,
507 [Define if you have a working <inttypes.h> header file.])
511 # Determine if enumerated bitfields are unsigned. ISO C says they can
512 # be either signed or unsigned.
514 AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
515 [AC_TRY_RUN(#include <stdlib.h>
516 enum t { BLAH = 128 } ;
517 struct s_t { enum t member : 8; } s ;
521 if (s.member < 0) exit(1);
524 }, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
525 if test $gcc_cv_enum_bf_unsigned = yes; then
526 AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
527 [Define if enumerated bitfields are treated as unsigned values.])
530 AC_CHECK_FUNCS(strtoul bsearch putenv popen bcopy \
531 strchr strrchr kill getrlimit setrlimit atoll atoq \
532 sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
533 fputs_unlocked getrusage iconv nl_langinfo)
535 AC_CHECK_TYPE(ssize_t, int)
537 # Try to determine the array type of the second argument of getgroups
538 # for the target system (int or gid_t).
540 if test "${target}" = "${build}"; then
541 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
544 # This condition may need some tweaking. It should include all
545 # targets where the array type of the second argument of getgroups
546 # is int and the type of gid_t is not equivalent to int.
547 *-*-sunos* | *-*-ultrix*)
548 TARGET_GETGROUPS_T=int
551 TARGET_GETGROUPS_T=gid_t
555 AC_SUBST(TARGET_GETGROUPS_T)
557 gcc_AC_FUNC_VFPRINTF_DOPRNT
559 gcc_AC_FUNC_PRINTF_PTR
564 *** UWIN may not be used as a host platform because
565 *** linking with posix.dll is not allowed by the GNU GPL])
569 AC_FUNC_MMAP_ANYWHERE
572 # We will need to find libiberty.h and ansidecl.h
573 saved_CFLAGS="$CFLAGS"
574 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
575 gcc_AC_CHECK_DECLS(bcopy \
576 getenv atol sbrk abort atof getcwd getwd \
577 strsignal putc_unlocked fputs_unlocked strstr environ \
578 malloc realloc calloc free basename getopt, , ,[
579 #include "gansidecl.h"
580 #include "system.h"])
582 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
583 #include "gansidecl.h"
585 #ifdef HAVE_SYS_RESOURCE_H
586 #include <sys/resource.h>
590 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
591 CFLAGS="$saved_CFLAGS"
593 # mkdir takes a single argument on some systems.
594 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
604 build_install_headers_dir=install-headers-tar
609 host_truncate_target=
612 # Decode the host machine, then the target machine.
613 # For the host machine, we save the xm_file variable as host_xm_file;
614 # then we decode the target machine and forget everything else
615 # that came from the host machine.
616 for machine in $build $host $target; do
617 . ${srcdir}/config.gcc
620 extra_objs="${host_extra_objs} ${extra_objs}"
622 # Default the target-machine variables that were not explicitly set.
623 if test x"$tm_file" = x
624 then tm_file=$cpu_type/$cpu_type.h; fi
626 if test x"$extra_headers" = x
627 then extra_headers=; fi
629 if test x"$xm_file" = x
630 then xm_file=$cpu_type/xm-$cpu_type.h; fi
632 if test x$md_file = x
633 then md_file=$cpu_type/$cpu_type.md; fi
635 if test x$out_file = x
636 then out_file=$cpu_type/$cpu_type.c; fi
638 if test x"$tmake_file" = x
639 then tmake_file=$cpu_type/t-$cpu_type
642 if test x"$dwarf2" = xyes
643 then tm_file="$tm_file tm-dwarf2.h"
646 if test x$float_format = x
647 then float_format=i64
650 if test $float_format = none
651 then float_h_file=Makefile.in
652 else float_h_file=float-$float_format.h
655 # Handle cpp installation.
656 if test x$enable_cpp != xno
658 tmake_file="$tmake_file t-install-cpp"
661 # Say what files are being used for the output code and MD file.
662 echo "Using \`$srcdir/config/$out_file' to output insns."
663 echo "Using \`$srcdir/config/$md_file' as machine description file."
666 for f in $tm_file; do
669 if test $count = ax; then
670 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
672 echo "Using the following target machine macro files:"
673 for f in $tm_file; do
674 echo " $srcdir/config/$f"
679 for f in $host_xm_file; do
682 if test $count = ax; then
683 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
685 echo "Using the following host machine macro files:"
686 for f in $host_xm_file; do
687 echo " $srcdir/config/$f"
691 if test "$host_xm_file" != "$build_xm_file"; then
693 for f in $build_xm_file; do
696 if test $count = ax; then
697 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
699 echo "Using the following build machine macro files:"
700 for f in $build_xm_file; do
701 echo " $srcdir/config/$f"
706 if test x$thread_file = x; then
707 if test x$target_thread_file != x; then
708 thread_file=$target_thread_file
714 # Set up the header files.
715 # $links is the list of header files to create.
716 # $vars is the list of shell variables with file names to include.
717 # auto-host.h is the file containing items generated by autoconf and is
718 # the first file included by config.h.
720 host_xm_file="auto-host.h gansidecl.h ${host_xm_file} defaults.h hwint.h"
722 # If host=build, it is correct to have hconfig include auto-host.h
723 # as well. If host!=build, we are in error and need to do more
724 # work to find out the build config parameters.
725 if test x$host = x$build
727 build_xm_file="auto-host.h gansidecl.h ${build_xm_file} defaults.h hwint.h"
729 # We create a subdir, then run autoconf in the subdir.
730 # To prevent recursion we set host and build for the new
731 # invocation of configure to the build for this invocation
738 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
739 *) realsrcdir=../${srcdir};;
741 CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
742 --target=$target --host=$build --build=$build
744 # We just finished tests for the build machine, so rename
745 # the file auto-build.h in the gcc directory.
746 mv auto-host.h ../auto-build.h
749 build_xm_file="auto-build.h gansidecl.h ${build_xm_file} defaults.h hwint.h"
752 xm_file="gansidecl.h ${xm_file} defaults.h"
753 tm_file="gansidecl.h ${tm_file} defaults.h"
755 vars="host_xm_file tm_file tm_p_file xm_file build_xm_file"
756 links="config.h tm.h tm_p.h tconfig.h hconfig.h"
757 defines="host_xm_defines null_defines null_defines xm_defines build_xm_defines"
760 if test -f config.status; then mv -f config.status config.bak; fi
763 while test -n "$vars"
765 set $vars; var=$1; shift; vars=$*
766 set $links; link=$1; shift; links=$*
767 set $defines; define=$1; shift; defines=$*
770 # Make sure the file is created, even if it is empty.
773 # Define TARGET_CPU_DEFAULT if the system wants one.
774 # This substitutes for lots of *.h files.
775 if test "$target_cpu_default" != "" -a $link = tm.h
777 echo "#define TARGET_CPU_DEFAULT ($target_cpu_default)" >>$link
780 for file in `eval echo '$'$var`; do
782 auto-host.h | auto-build.h )
785 echo '#ifdef IN_GCC' >>$link
788 echo "#include \"$file\"" >>$link
790 auto-host.h | auto-build.h )
793 echo '#endif' >>$link
798 for def in `eval echo '$'$define`; do
799 echo "#ifndef $def" >>$link
800 echo "#define $def" >>$link
801 echo "#endif" >>$link
806 # Include insn-codes.h last, because it includes machmode.h,
807 # and we want EXTRA_CC_MODES to be taken into account.
808 echo "#ifndef GENERATOR_FILE" >>$link
809 echo "#include \"insn-codes.h\"" >>$link
810 echo "#endif" >>$link
814 # Truncate the target if necessary
815 if test x$host_truncate_target != x; then
816 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
819 # Get the version trigger filename from the toplevel
820 if test "${with_gcc_version_trigger+set}" = set; then
821 gcc_version_trigger=$with_gcc_version_trigger
823 gcc_version_trigger=${srcdir}/version.c
826 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
827 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
829 # Compile in configure arguments.
830 if test -f configargs.h ; then
831 # Being re-configured.
832 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
833 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
835 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
837 cat > configargs.h <<EOF
838 /* Generated automatically. */
839 static const char configuration_arguments[] = "$gcc_config_arguments";
843 # Internationalization
845 VERSION="$gcc_version"
846 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
847 [Define to the name of the distribution.])
848 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
849 [Define to the version of the distribution.])
855 # Enable NLS support by default
857 [ --enable-nls use Native Language Support (default)],
860 # if cross compiling, disable NLS support.
861 # It's not worth the trouble, at least for now.
863 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
864 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
868 # if NLS is enabled, also enable check in po subdir
869 if test $enable_nls = yes; then
878 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
880 # Windows32 Registry support for specifying GCC installation paths.
881 AC_ARG_ENABLE(win32-registry,
882 [ --disable-win32-registry
883 Disable lookup of installation paths in the
884 Registry on Windows hosts.
885 --enable-win32-registry Enable registry lookup (default).
886 --enable-win32-registry=KEY
887 Use KEY instead of GCC version as the last portion
888 of the registry key.],,)
890 AC_MSG_CHECKING(whether windows registry support is requested)
891 if test x$enable_win32_registry != xno; then
892 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
893 [Define to 1 if installation paths should be looked up in Windows32
894 Registry. Ignored on non windows32 hosts.])
900 # Check if user specified a different registry key.
901 case x${enable_win32_registry} in
904 gcc_cv_win32_registry_key="$VERSION"
907 # no registry lookup.
908 gcc_cv_win32_registry_key=''
911 # user-specified key.
912 gcc_cv_win32_registry_key="$enable_win32_registry"
916 if test x$enable_win32_registry != xno; then
917 AC_MSG_CHECKING(registry key on windows hosts)
918 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
919 [Define to be the last portion of registry key on windows hosts.])
920 AC_MSG_RESULT($gcc_cv_win32_registry_key)
923 # Get an absolute path to the GCC top-level source directory
929 # Conditionalize the makefile for this host machine.
930 # Make-host contains the concatenation of all host makefile fragments
931 # [there can be more than one]. This file is built by configure.frag.
932 host_overrides=Make-host
934 for f in .. ${host_xmake_file}
936 if test -f ${srcdir}/config/$f
938 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
942 # Conditionalize the makefile for this target machine.
943 # Make-target contains the concatenation of all host makefile fragments
944 # [there can be more than one]. This file is built by configure.frag.
945 target_overrides=Make-target
947 for f in .. ${tmake_file}
949 if test -f ${srcdir}/config/$f
951 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
955 # If the host doesn't support symlinks, modify CC in
956 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
957 # Otherwise, we can use "CC=$(CC)".
959 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
961 cc_set_by_configure="\$(CC)"
962 quoted_cc_set_by_configure="\$(CC)"
963 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
966 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
968 symbolic_link="cp -p"
972 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
973 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
974 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
978 out_object_file=`basename $out_file .c`.o
981 for f in $tm_file; do
983 gansidecl.h | defaults.h )
984 tm_file_list="${tm_file_list} $f" ;;
985 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
990 for f in $host_xm_file; do
992 auto-host.h | gansidecl.h | defaults.h | hwint.h )
993 host_xm_file_list="${host_xm_file_list} $f" ;;
994 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
999 for f in $build_xm_file; do
1001 auto-build.h | auto-host.h | gansidecl.h | defaults.h | hwint.h )
1002 build_xm_file_list="${build_xm_file_list} $f" ;;
1003 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1007 # Define macro CROSS_COMPILE in compilation
1008 # if this is a cross-compiler.
1009 # Also use all.cross instead of all.internal
1010 # and add cross-make to Makefile.
1011 cross_overrides="/dev/null"
1012 if test x$host != x$target
1014 cross_defines="CROSS=-DCROSS_COMPILE"
1015 cross_overrides="${topdir}/cross-make"
1018 # If this is a cross-compiler that does not
1019 # have its own set of headers then define
1022 # If this is using newlib, then define inhibit_libc in
1023 # LIBGCC2_CFLAGS. This will cause __eprintf to be left out of
1024 # libgcc.a, but that's OK because newlib should have its own version of
1027 if [test x$host != x$target] && [test x$with_headers = x]; then
1028 inhibit_libc=-Dinhibit_libc
1030 if [test x$with_newlib = xyes]; then
1031 inhibit_libc=-Dinhibit_libc
1034 AC_SUBST(inhibit_libc)
1036 # When building gcc with a cross-compiler, we need to fix a few things.
1037 # This must come after cross-make as we want all.build to override
1039 build_overrides="/dev/null"
1040 if test x$build != x$host
1042 build_overrides="${topdir}/build-make"
1045 # Expand extra_headers to include complete path.
1046 # This substitutes for lots of t-* files.
1048 if test "x$extra_headers" = x
1051 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1052 for file in $extra_headers;
1054 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1058 if test x$use_collect2 = xno; then
1062 # Add a definition of USE_COLLECT2 if system wants one.
1063 # Also tell toplev.c what to do.
1064 # This substitutes for lots of t-* files.
1065 if test x$use_collect2 = x
1070 will_use_collect2="collect2"
1071 maybe_use_collect2="-DUSE_COLLECT2"
1074 # If we have gas in the build tree, make a link to it.
1075 if test -f ../gas/Makefile; then
1076 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1079 # If we have nm in the build tree, make a link to it.
1080 if test -f ../binutils/Makefile; then
1081 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1084 # If we have ld in the build tree, make a link to it.
1085 if test -f ../ld/Makefile; then
1086 # if test x$use_collect2 = x; then
1087 # rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1089 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1093 # Figure out what assembler we will be using.
1094 AC_MSG_CHECKING(what assembler to use)
1096 gcc_cv_gas_major_version=
1097 gcc_cv_gas_minor_version=
1098 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1099 if test -x "$DEFAULT_ASSEMBLER"; then
1100 gcc_cv_as="$DEFAULT_ASSEMBLER"
1101 elif test -x "$AS"; then
1103 elif test -x as$host_exeext; then
1104 # Build using assembler in the current directory.
1105 gcc_cv_as=./as$host_exeext
1106 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1107 # Single tree build which includes gas.
1108 for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1111 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1113 if test x$gcc_cv_gas_version != x; then
1118 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1119 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1123 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1125 # Search the same directories that the installed compiler will
1126 # search. Else we may find the wrong assembler and lose. If we
1127 # do not find a suitable assembler binary, then try the user's
1130 # Also note we have to check MD_EXEC_PREFIX before checking the
1131 # user's path. Unfortunately, there is no good way to get at the
1132 # value of MD_EXEC_PREFIX here. So we do a brute force search
1133 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1134 # to be fixed as part of the make/configure rewrite too.
1136 if test "x$exec_prefix" = xNONE; then
1137 if test "x$prefix" = xNONE; then
1138 test_prefix=/usr/local
1143 test_prefix=$exec_prefix
1146 # If the loop below does not find an assembler, then use whatever
1147 # one we can find in the users's path.
1151 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1152 $test_prefix/lib/gcc-lib/$target \
1153 /usr/lib/gcc/$target/$gcc_version \
1154 /usr/lib/gcc/$target \
1155 $test_prefix/$target/bin/$target/$gcc_version \
1156 $test_prefix/$target/bin \
1161 /bsd43/usr/lib/cmplrs/cc \
1162 /usr/cross64/usr/bin \
1163 /usr/lib/cmplrs/cc \
1164 /sysv/usr/lib/cmplrs/cc \
1165 /svr4/usr/lib/cmplrs/cc \
1168 for dir in $test_dirs; do
1169 if test -f $dir/as$host_exeext; then
1170 gcc_cv_as=$dir/as$host_exeext
1175 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1176 AC_MSG_RESULT("newly built gas")
1178 AC_MSG_RESULT($gcc_cv_as)
1181 # Figure out what nm we will be using.
1182 AC_MSG_CHECKING(what nm to use)
1183 if test -x nm$host_exeext; then
1184 gcc_cv_nm=./nm$host_exeext
1185 elif test x$host = x$target; then
1187 gcc_cv_nm=nm$host_exeext
1189 AC_MSG_RESULT($gcc_cv_nm)
1191 # Figure out what assembler alignment features are present.
1192 AC_MSG_CHECKING(assembler alignment features)
1193 gcc_cv_as_alignment_features=none
1194 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1195 # Gas version 2.6 and later support for .balign and .p2align.
1196 # bytes to skip when using .p2align.
1197 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1198 gcc_cv_as_alignment_features=".balign and .p2align"
1199 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1201 # Gas version 2.8 and later support specifying the maximum
1202 # bytes to skip when using .p2align.
1203 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1204 gcc_cv_as_alignment_features=".p2align including maximum skip"
1205 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1207 elif test x$gcc_cv_as != x; then
1208 # Check if we have .balign and .p2align
1209 echo ".balign 4" > conftest.s
1210 echo ".p2align 2" >> conftest.s
1211 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1212 gcc_cv_as_alignment_features=".balign and .p2align"
1213 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1215 rm -f conftest.s conftest.o
1216 # Check if specifying the maximum bytes to skip when
1217 # using .p2align is supported.
1218 echo ".p2align 4,,7" > conftest.s
1219 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1220 gcc_cv_as_alignment_features=".p2align including maximum skip"
1221 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1223 rm -f conftest.s conftest.o
1225 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1227 AC_MSG_CHECKING(assembler subsection support)
1228 gcc_cv_as_subsections=no
1229 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1230 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1231 gcc_cv_as_subsections="working .subsection -1"
1233 elif test x$gcc_cv_as != x; then
1234 # Check if we have .subsection
1235 echo ".subsection 1" > conftest.s
1236 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1237 gcc_cv_as_subsections=".subsection"
1238 if test x$gcc_cv_nm != x; then
1239 cat > conftest.s <<EOF
1240 conftest_label1: .word 0
1242 conftest_label2: .word 0
1245 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1246 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1247 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1248 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1251 gcc_cv_as_subsections="working .subsection -1"
1256 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1258 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1259 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1260 [Define if your assembler supports .subsection and .subsection -1 starts
1261 emitting at the beginning of your section.])
1263 AC_MSG_RESULT($gcc_cv_as_subsections)
1265 AC_MSG_CHECKING(assembler weak support)
1267 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1268 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1269 gcc_cv_as_weak="yes"
1271 elif test x$gcc_cv_as != x; then
1272 # Check if we have .weak
1273 echo " .weak foobar" > conftest.s
1274 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1275 gcc_cv_as_weak="yes"
1277 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1279 if test x"$gcc_cv_as_weak" = xyes; then
1280 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1282 AC_MSG_RESULT($gcc_cv_as_weak)
1284 AC_MSG_CHECKING(assembler hidden support)
1286 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1287 if test "$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
1288 gcc_cv_as_hidden="yes"
1290 elif test x$gcc_cv_as != x; then
1291 # Check if we have .hidden
1292 echo " .hidden foobar" > conftest.s
1293 echo "foobar:" >> conftest.s
1294 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1295 gcc_cv_as_hidden="yes"
1297 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1299 if test x"$gcc_cv_as_hidden" = xyes; then
1300 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1301 [Define if your assembler supports .hidden.])
1303 AC_MSG_RESULT($gcc_cv_as_hidden)
1307 AC_CACHE_CHECK([assembler .register pseudo-op support],
1308 gcc_cv_as_register_pseudo_op, [
1309 gcc_cv_as_register_pseudo_op=unknown
1310 if test x$gcc_cv_as != x; then
1311 # Check if we have .register
1312 echo ".register %g2, #scratch" > conftest.s
1313 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1314 gcc_cv_as_register_pseudo_op=yes
1316 gcc_cv_as_register_pseudo_op=no
1318 rm -f conftest.s conftest.o
1321 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1322 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1323 [Define if your assembler supports .register.])
1326 AC_CACHE_CHECK([assembler supports -relax],
1327 gcc_cv_as_relax_opt, [
1328 gcc_cv_as_relax_opt=unknown
1329 if test x$gcc_cv_as != x; then
1330 # Check if gas supports -relax
1331 echo ".text" > conftest.s
1332 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1333 gcc_cv_as_relax_opt=yes
1335 gcc_cv_as_relax_opt=no
1337 rm -f conftest.s conftest.o
1340 if test "x$gcc_cv_as_relax_opt" = xyes; then
1341 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1342 [Define if your assembler supports -relax option.])
1347 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1348 gcc_cv_as_flags64, [
1349 if test -n "$gcc_cv_as"; then
1350 echo ".xword foo" > conftest.s
1351 gcc_cv_as_flags64=no
1352 for flag in "-xarch=v9" "-64 -Av9"; do
1353 if $gcc_cv_as $flag -o conftest.o conftest.s \
1354 > /dev/null 2>&1; then
1355 gcc_cv_as_flags64=$flag
1359 rm -f conftest.s conftest.o
1361 if test "$gas" = yes; then
1362 gcc_cv_as_flags64="-64 -Av9"
1364 gcc_cv_as_flags64="-xarch=v9"
1368 if test "x$gcc_cv_as_flags64" = xno; then
1370 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1371 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1374 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1375 [Define if the assembler supports 64bit sparc.])
1378 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1382 if test "x$gcc_cv_as_flags64" != xno; then
1383 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1384 gcc_cv_as_offsetable_lo10, [
1385 gcc_cv_as_offsetable_lo10=unknown
1386 if test "x$gcc_cv_as" != x; then
1387 # Check if assembler has offsetable %lo()
1388 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1389 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1390 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1392 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1393 > /dev/null 2>&1; then
1394 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1395 gcc_cv_as_offsetable_lo10=no
1397 gcc_cv_as_offsetable_lo10=yes
1400 gcc_cv_as_offsetable_lo10=no
1402 rm -f conftest.s conftest.o conftest1.s conftest1.o
1405 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1406 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1407 [Define if your assembler supports offsetable %lo().])
1415 AC_MSG_CHECKING(assembler instructions)
1416 gcc_cv_as_instructions=
1417 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1418 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1419 gcc_cv_as_instructions="filds fists"
1421 elif test x$gcc_cv_as != x; then
1422 set "filds fists" "filds mem; fists mem"
1425 echo "$2" > conftest.s
1426 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1427 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1431 rm -f conftest.s conftest.o
1433 if test x"$gcc_cv_as_instructions" != x; then
1434 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1436 AC_MSG_RESULT($gcc_cv_as_instructions)
1440 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1441 gcc_cv_as_dwarf2_debug_line=no
1442 # ??? Not all targets support dwarf2 debug_line, even within a version
1443 # of gas. Moreover, we need to emit a valid instruction to trigger any
1444 # info to the output file. So, as supported targets are added to gas 2.11,
1445 # add some instruction here to (also) show we expect this might work.
1446 # ??? Once 2.11 is released, probably need to add first known working
1447 # version to the per-target configury.
1449 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-*)
1456 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1458 if test "$gcc_cv_gas_major_version" -eq 2 \
1459 -a "$gcc_cv_gas_minor_version" -ge 11 \
1460 -o "$gcc_cv_gas_major_version" -gt 2 \
1461 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1462 && test x"$insn" != x ; then
1463 gcc_cv_as_dwarf2_debug_line="yes"
1465 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1466 echo ' .file 0 "conftest.s"' > conftest.s
1467 echo ' .loc 0 3 0' >> conftest.s
1468 echo " $insn" >> conftest.s
1469 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1470 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1471 gcc_cv_as_dwarf2_debug_line="yes"
1473 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1475 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1476 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1477 [Define if your assembler supports dwarf2 .file/.loc directives.])
1479 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1481 # Figure out what language subdirectories are present.
1482 # Look if the user specified --enable-languages="..."; if not, use
1483 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1485 if test x"${enable_languages+set}" != xset; then
1486 if test x"${LANGUAGES+set}" = xset; then
1487 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1489 enable_languages=all
1492 if test x"${enable_languages}" = x; then
1493 AC_MSG_ERROR([--enable-languages needs at least one argument])
1497 for lang in ${srcdir}/*/config-lang.in ..
1501 # The odd quoting in the next line works around
1502 # an apparent bug in bash 1.12 on linux.
1504 ${srcdir}/[*]/config-lang.in) ;;
1506 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1507 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
1508 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
1509 if test "x$lang_alias" = x
1511 echo "$lang doesn't set \$language." 1>&2
1514 case ${build_by_default},${enable_languages}, in
1515 *,$lang_alias,*) add_this_lang=yes ;;
1516 no,*) add_this_lang=no ;;
1517 *,all,*) add_this_lang=yes ;;
1518 *) add_this_lang=no ;;
1520 if test x"${add_this_lang}" = xyes; then
1522 ${srcdir}/ada/config-lang.in)
1523 if test x$gnat = xyes ; then
1524 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1528 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1537 # Make gthr-default.h if we have a thread file.
1539 if test $thread_file != single; then
1540 rm -f gthr-default.h
1541 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1542 gthread_flags=-DHAVE_GTHR_DEFAULT
1544 AC_SUBST(gthread_flags)
1546 # Find out what GC implementation we want, or may, use.
1548 [ --with-gc={simple,page} Choose the garbage collection mechanism to use
1549 with the compiler.],
1555 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1560 echo "Using $GGC for garbage collection."
1562 # Use the system's zlib library.
1564 zlibinc="-I\$(srcdir)/../zlib"
1565 AC_ARG_WITH(system-zlib,
1566 [ --with-system-zlib use installed libz],
1573 AC_DEFINE_UNQUOTED(ENABLE_STD_NAMESPACE, 1,
1574 [Define to 1 if you want to enable namespaces (-fhonor-std) by default.])
1576 dnl Very limited version of automake's enable-maintainer-mode
1578 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1579 dnl maintainer-mode is disabled by default
1580 AC_ARG_ENABLE(maintainer-mode,
1581 [ --enable-maintainer-mode enable make rules and dependencies not useful
1582 (and sometimes confusing) to the casual installer],
1583 maintainer_mode=$enableval,
1586 AC_MSG_RESULT($maintainer_mode)
1588 if test "$maintainer_mode" = "yes"; then
1595 # Make empty files to contain the specs and options for each language.
1596 # Then add #include lines to for a compiler that has specs and/or options.
1601 rm -f specs.h options.h gencheck.h
1602 touch specs.h options.h gencheck.h
1603 for subdir in . $subdirs
1605 if test -f $srcdir/$subdir/lang-specs.h; then
1606 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1607 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1609 if test -f $srcdir/$subdir/lang-options.h; then
1610 echo "#include \"$subdir/lang-options.h\"" >>options.h
1611 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1613 if test -f $srcdir/$subdir/$subdir-tree.def; then
1614 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1615 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1619 # These (without "all_") are set in each config-lang.in.
1620 # `language' must be a single word so is spelled singularly.
1626 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1627 # List of language makefile fragments.
1632 # Add the language fragments.
1633 # Languages are added via two mechanisms. Some information must be
1634 # recorded in makefile variables, these are defined in config-lang.in.
1635 # We accumulate them and plug them into the main Makefile.
1636 # The other mechanism is a set of hooks for each of the main targets
1637 # like `clean', `install', etc.
1639 language_fragments="Make-lang"
1640 language_hooks="Make-hooks"
1642 for s in .. $subdirs
1654 . ${srcdir}/$s/config-lang.in
1655 if test "x$language" = x
1657 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1660 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1661 if test -f ${srcdir}/$s/Makefile.in
1662 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1664 all_languages="$all_languages $language"
1665 if test "x$boot_language" = xyes
1667 all_boot_languages="$all_boot_languages $language"
1669 all_compilers="$all_compilers $compilers"
1670 all_stagestuff="$all_stagestuff $stagestuff"
1671 all_diff_excludes="$all_diff_excludes $diff_excludes"
1672 all_headers="$all_headers $headers"
1673 all_outputs="$all_outputs $outputs"
1674 all_lib2funcs="$all_lib2funcs $lib2funcs"
1678 # Since we can't use `::' targets, we link each language in
1679 # with a set of hooks, reached indirectly via lang.${target}.
1683 target_list="all.build all.cross start.encap rest.encap \
1685 install-normal install-common install-info install-man \
1687 mostlyclean clean distclean extraclean maintainer-clean \
1688 stage1 stage2 stage3 stage4"
1689 for t in $target_list
1692 for lang in .. $all_languages
1694 if test $lang != ".."; then
1698 echo "lang.$t: $x" >> Make-hooks
1701 # If we're not building in srcdir, create .gdbinit.
1703 if test ! -f Makefile.in; then
1704 echo "dir ." > .gdbinit
1705 echo "dir ${srcdir}" >> .gdbinit
1706 if test x$gdb_needs_out_file_path = xyes
1708 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1710 if test "x$subdirs" != x; then
1713 echo "dir ${srcdir}/$s" >> .gdbinit
1716 echo "source ${srcdir}/.gdbinit" >> .gdbinit
1719 # Define variables host_canonical and build_canonical
1720 # because some Cygnus local changes in the Makefile depend on them.
1721 build_canonical=${build}
1722 host_canonical=${host}
1724 if test "${host}" != "${target}" ; then
1725 target_subdir=${target}/
1727 AC_SUBST(build_canonical)
1728 AC_SUBST(host_canonical)
1729 AC_SUBST(target_subdir)
1731 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1732 # absolute path for gcc_tooldir based on inserting the number of up-directory
1733 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1734 # $(libsubdir)/@(unlibsubdir) based path.
1735 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1736 # make and thus we'd get different behavior depending on where we built the
1738 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1739 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1741 changequote(<<, >>)dnl
1742 # An explanation of the sed strings:
1743 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
1744 # -e 's|/$||' match a trailing forward slash and eliminates it
1745 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
1746 # -e 's|/[^/]*|../|g' replaces each occurance of /<directory> with ../
1748 # (*) Note this pattern overwrites the first character of the string
1749 # with a forward slash if one is not already present. This is not a
1750 # problem because the exact names of the sub-directories concerned is
1751 # unimportant, just the number of them matters.
1753 # The practical upshot of these patterns is like this:
1755 # prefix exec_prefix result
1756 # ------ ----------- ------
1758 # /foo/ /foo/bar ../
1759 # /foo /foo/bar/ ../
1760 # /foo/ /foo/bar/ ../
1761 # /foo /foo/bar/ugg ../../
1764 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1765 changequote([, ])dnl
1767 AC_SUBST(gcc_tooldir)
1770 # Find a directory in which to install a shared libgcc.
1772 AC_ARG_ENABLE(version-specific-runtime-libs,
1773 [ --enable-version-specific-runtime-libs Specify that runtime libraries shou
1774 ld be installed in a compiler-specific directory ])
1776 AC_ARG_WITH(slibdir,
1777 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
1778 slibdir="$with_slibdir",
1779 if test "${enable_version_specific_runtime_libs+set}" = set; then
1780 slibdir='$(libsubdir)'
1781 elif test "$host" != "$target"; then
1782 slibdir='$(build_tooldir)/lib'
1788 # Nothing to do for FLOAT_H, float_format already handled.
1792 # Process the language and host/target makefile fragments.
1793 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1795 # Substitute configuration variables
1797 AC_SUBST(all_boot_languages)
1798 AC_SUBST(all_compilers)
1799 AC_SUBST(all_diff_excludes)
1800 AC_SUBST(all_headers)
1801 AC_SUBST(all_lang_makefiles)
1802 AC_SUBST(all_languages)
1803 AC_SUBST(all_lib2funcs)
1804 AC_SUBST(all_stagestuff)
1805 AC_SUBST(build_exeext)
1806 AC_SUBST(build_install_headers_dir)
1807 AC_SUBST(build_xm_file_list)
1808 AC_SUBST(cc_set_by_configure)
1809 AC_SUBST(quoted_cc_set_by_configure)
1810 AC_SUBST(cpp_install_dir)
1811 AC_SUBST(dep_host_xmake_file)
1812 AC_SUBST(dep_tmake_file)
1813 AC_SUBST(extra_c_flags)
1814 AC_SUBST(extra_headers_list)
1815 AC_SUBST(extra_objs)
1816 AC_SUBST(extra_parts)
1817 AC_SUBST(extra_passes)
1818 AC_SUBST(extra_programs)
1819 AC_SUBST(float_h_file)
1820 AC_SUBST(gcc_config_arguments)
1821 AC_SUBST(gcc_gxx_include_dir)
1822 AC_SUBST(libstdcxx_incdir)
1823 AC_SUBST(gcc_version)
1824 AC_SUBST(gcc_version_full)
1825 AC_SUBST(gcc_version_trigger)
1826 AC_SUBST(host_exeext)
1827 AC_SUBST(host_extra_gcc_objs)
1828 AC_SUBST(host_xm_file_list)
1830 AC_SUBST(lang_options_files)
1831 AC_SUBST(lang_specs_files)
1832 AC_SUBST(lang_tree_files)
1833 AC_SUBST(local_prefix)
1834 AC_SUBST(maybe_use_collect2)
1836 AC_SUBST(objc_boehm_gc)
1838 AC_SUBST(out_object_file)
1839 AC_SUBST(stage_prefix_set_by_configure)
1840 AC_SUBST(symbolic_link)
1841 AC_SUBST(thread_file)
1842 AC_SUBST(tm_file_list)
1843 AC_SUBST(will_use_collect2)
1844 AC_SUBST(c_target_objs)
1845 AC_SUBST(cxx_target_objs)
1848 AC_SUBST_FILE(target_overrides)
1849 AC_SUBST_FILE(host_overrides)
1850 AC_SUBST(cross_defines)
1851 AC_SUBST_FILE(cross_overrides)
1852 AC_SUBST_FILE(build_overrides)
1853 AC_SUBST_FILE(language_fragments)
1854 AC_SUBST_FILE(language_hooks)
1856 # Echo that links are built
1857 if test x$host = x$target
1865 if test x$host != x$build
1867 str3=" on a $build system"
1870 if test "x$str2" != x || test "x$str3" != x
1875 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
1877 if test "x$str2" != x || test "x$str3" != x
1879 echo " ${str2}${str3}." 1>&2
1882 # Truncate the target if necessary
1883 if test x$host_truncate_target != x; then
1884 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1887 # Configure the subdirectories
1888 # AC_CONFIG_SUBDIRS($subdirs)
1890 # Create the Makefile
1891 # and configure language subdirectories
1892 AC_OUTPUT($all_outputs,
1894 case x$CONFIG_HEADERS in
1895 xauto-host.h:config.in)
1898 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
1899 # bootstrapping and the installation procedure can still use
1900 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
1901 # FLAGS_TO_PASS has been modified to solve the problem there.
1902 # This is virtually a duplicate of what happens in configure.lang; we do
1903 # an extra check to make sure this only happens if ln -s can be used.
1904 if test "$symbolic_link" = "ln -s"; then
1905 for d in .. ${subdirs} ; do
1906 if test $d != ..; then
1909 for t in stage1 stage2 stage3 stage4 include
1912 $symbolic_link ../$t $t 2>/dev/null
1918 # Avoid having to add intl to our include paths.
1919 if test -f intl/libintl.h; then
1920 echo creating libintl.h
1921 echo '#include "intl/libintl.h"' >libintl.h
1928 target_alias='${target_alias}'
1930 subdirs='${subdirs}'
1931 symbolic_link='${symbolic_link}'
1932 program_transform_set='${program_transform_set}'
1933 program_transform_name='${program_transform_name}'
1934 dep_host_xmake_file='${dep_host_xmake_file}'
1935 host_xmake_file='${host_xmake_file}'
1936 dep_tmake_file='${dep_tmake_file}'
1937 tmake_file='${tmake_file}'
1938 thread_file='${thread_file}'
1939 gcc_config_arguments='${gcc_config_arguments}'
1940 gcc_version='${gcc_version}'
1941 gcc_version_full='${gcc_version_full}'
1942 gcc_version_trigger='${gcc_version_trigger}'
1943 local_prefix='${local_prefix}'
1944 build_install_headers_dir='${build_install_headers_dir}'
1945 build_exeext='${build_exeext}'
1946 host_exeext='${host_exeext}'
1947 out_file='${out_file}'
1948 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
1949 SET_MAKE='${SET_MAKE}'
1950 target_list='${target_list}'
1951 target_overrides='${target_overrides}'
1952 host_overrides='${host_overrides}'
1953 cross_defines='${cross_defines}'
1954 cross_overrides='${cross_overrides}'
1955 build_overrides='${build_overrides}'
1956 cpp_install_dir='${cpp_install_dir}'