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 $check) ;;
218 if test x$ac_checking != x ; then
219 AC_DEFINE(ENABLE_CHECKING, 1,
220 [Define if you want more run-time sanity checks. This one gets a grab
221 bag of miscellaneous but relatively cheap checks.])
223 if test x$ac_tree_checking != x ; then
224 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
225 [Define if you want all operations on trees (the basic data
226 structure of the front ends) to be checked for dynamic type safety
227 at runtime. This is moderately expensive.])
229 if test x$ac_rtl_checking != x ; then
230 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
231 [Define if you want all operations on RTL (the basic data structure
232 of the optimizer and back end) to be checked for dynamic type safety
233 at runtime. This is quite expensive.])
235 if test x$ac_gc_checking != x ; then
236 AC_DEFINE(ENABLE_GC_CHECKING, 1,
237 [Define if you want the garbage collector to do object poisoning and
238 other memory allocation checks. This is quite expensive.])
240 if test x$ac_gc_always_collect != x ; then
241 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
242 [Define if you want the garbage collector to operate in maximally
243 paranoid mode, validating the entire heap and collecting garbage at
244 every opportunity. This is extremely expensive.])
249 [ --disable-cpp don't provide a user-visible C preprocessor.],
250 [], [enable_cpp=yes])
252 AC_ARG_WITH(cpp_install_dir,
253 [ --with-cpp-install-dir=DIR
254 install the user visible C preprocessor in DIR
255 (relative to PREFIX) as well as PREFIX/bin.],
256 [if test x$withval = xyes; then
257 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
258 elif test x$withval != xno; then
259 cpp_install_dir=$withval
262 # Enable Multibyte Characters for C/C++
263 AC_ARG_ENABLE(c-mbchar,
264 [ --enable-c-mbchar Enable multibyte characters for C and C++.],
265 if test x$enable_c_mbchar != xno; then
266 AC_DEFINE(MULTIBYTE_CHARS, 1,
267 [Define if you want the C and C++ compilers to support multibyte
268 character sets for source code.])
272 # Pass with no value to take the default
273 # Pass with a value to specify a thread package
274 AC_ARG_ENABLE(threads,
275 [ --enable-threads enable thread usage for target GCC.
276 --enable-threads=LIB use LIB thread package for target GCC.],,
279 enable_threads_flag=$enable_threads
280 # Check if a valid thread package
281 case x${enable_threads_flag} in
284 target_thread_file='single'
288 target_thread_file=''
290 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
291 xsolaris | xwin32 | xdce | xvxworks | xaix)
292 target_thread_file=$enable_threads_flag
295 echo "$enable_threads is an unknown thread package" 1>&2
300 AC_ARG_ENABLE(objc-gc,
301 [ --enable-objc-gc enable the use of Boehm's garbage collector with
302 the GNU Objective-C runtime.],
303 if test x$enable_objc_gc = xno; then
311 [ --with-dwarf2 force the default debug format to be DWARF2.],
312 dwarf2="$with_dwarf2",
315 AC_ARG_ENABLE(shared,
316 [ --disable-shared don't provide a shared libgcc.],
318 case $enable_shared in
322 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
323 for pkg in $enableval; do
324 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
331 ], [enable_shared=yes])
332 AC_SUBST(enable_shared)
334 # Determine the host, build, and target systems
337 # Find the native compiler
340 # autoconf is lame and doesn't give us any substitution variable for this.
341 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
342 NO_MINUS_C_MINUS_O=yes
344 OUTPUT_OPTION='-o $@'
346 AC_SUBST(NO_MINUS_C_MINUS_O)
347 AC_SUBST(OUTPUT_OPTION)
351 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
352 ac_cv_prog_cc_no_long_long,
353 [save_CFLAGS="$CFLAGS"
354 CFLAGS="-Wno-long-long"
355 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
356 ac_cv_prog_cc_no_long_long=no)
357 CFLAGS="$save_CFLAGS"])
359 if test $ac_cv_prog_cc_no_long_long = yes; then
360 strict1_warn="-pedantic -Wno-long-long"
362 AC_SUBST(strict1_warn)
364 # If the native compiler is GCC, we can enable warnings even in stage1.
365 # That's useful for people building cross-compilers, or just running a
368 if test "x$GCC" = "xyes"; then
369 warn_cflags='$(GCC_WARN_CFLAGS)'
371 AC_SUBST(warn_cflags)
373 # Stage specific cflags for build.
379 stage1_cflags="-Wa,-J"
385 AC_SUBST(stage1_cflags)
389 AC_MSG_CHECKING([whether a default assembler was specified])
390 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
391 if test x"$gas_flag" = x"no"; then
392 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
394 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
400 AC_MSG_CHECKING([whether a default linker was specified])
401 if test x"${DEFAULT_LINKER+set}" = x"set"; then
402 if test x"$gnu_ld_flag" = x"no"; then
403 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
405 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
411 AC_MSG_CHECKING(for GNU C library)
412 AC_CACHE_VAL(gcc_cv_glibc,
414 [#include <features.h>],[
415 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
416 #error Not a GNU C library system
420 AC_MSG_RESULT($gcc_cv_glibc)
421 if test $gcc_cv_glibc = yes; then
422 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
427 # Find some useful tools
439 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
440 fcntl.h unistd.h stab.h sys/file.h sys/time.h \
441 sys/resource.h sys/param.h sys/times.h sys/stat.h \
442 direct.h malloc.h langinfo.h iconv.h stdbool.h)
444 # Check for thread headers.
445 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
446 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
448 # See if GNAT has been installed
449 AC_CHECK_PROG(gnat, gnatbind, yes, no)
451 # See if we have the mktemp command.
452 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
454 # Do we have a single-tree copy of texinfo?
455 if test -f $srcdir/../texinfo/Makefile.in; then
456 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
457 gcc_cv_prog_makeinfo_modern=yes
458 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
460 # See if makeinfo has been installed and is modern enough
461 # that we can use it.
462 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
463 [GNU texinfo.* \([0-9][0-9.]*\)],
467 if test $gcc_cv_prog_makeinfo_modern = no; then
469 *** Makeinfo is missing or too old.
470 *** Info documentation will not be built.])
473 BUILD_INFO=info AC_SUBST(BUILD_INFO)
476 # Is pod2man recent enough to regenerate manpages?
477 AC_MSG_CHECKING([for recent Pod::Man])
478 if perl -e 'use 1.10 Pod::Man' >/dev/null 2>&1; then
480 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
487 dnl Don't use AC_PROG_LEX; we insist on flex.
488 dnl LEXLIB is not useful in gcc.
489 if test -f $srcdir/../flex/skel.c; then
490 FLEX='$(objdir)/../flex/flex'
492 AC_CHECK_PROG(FLEX, flex, flex, false)
496 # The -L switch is so bison can find its skeleton file.
497 if test -f $srcdir/../bison/bison.simple; then
498 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
500 AC_CHECK_PROG(BISON, bison, bison, false)
503 # See if the stage1 system preprocessor understands the ANSI C
504 # preprocessor stringification operator.
507 # Use <inttypes.h> only if it exists,
508 # doesn't clash with <sys/types.h>, and declares intmax_t.
509 AC_MSG_CHECKING(for inttypes.h)
510 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
512 [#include <sys/types.h>
513 #include <inttypes.h>],
515 [gcc_cv_header_inttypes_h=yes],
516 gcc_cv_header_inttypes_h=no)])
517 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
518 if test $gcc_cv_header_inttypes_h = yes; then
519 AC_DEFINE(HAVE_INTTYPES_H, 1,
520 [Define if you have a working <inttypes.h> header file.])
524 # Determine if enumerated bitfields are unsigned. ISO C says they can
525 # be either signed or unsigned.
527 AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
528 [AC_TRY_RUN(#include <stdlib.h>
529 enum t { BLAH = 128 } ;
530 struct s_t { enum t member : 8; } s ;
534 if (s.member < 0) exit(1);
537 }, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
538 if test $gcc_cv_enum_bf_unsigned = yes; then
539 AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
540 [Define if enumerated bitfields are treated as unsigned values.])
543 AC_CHECK_FUNCS(strtoul bsearch putenv popen bcopy \
544 strchr strrchr kill getrlimit setrlimit atoll atoq \
545 sysconf isascii gettimeofday strsignal putc_unlocked fputc_unlocked \
546 fputs_unlocked getrusage iconv nl_langinfo lstat)
548 AC_CHECK_TYPE(ssize_t, int)
550 # Try to determine the array type of the second argument of getgroups
551 # for the target system (int or gid_t).
553 if test "${target}" = "${build}"; then
554 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
557 # This condition may need some tweaking. It should include all
558 # targets where the array type of the second argument of getgroups
559 # is int and the type of gid_t is not equivalent to int.
560 *-*-sunos* | *-*-ultrix*)
561 TARGET_GETGROUPS_T=int
564 TARGET_GETGROUPS_T=gid_t
568 AC_SUBST(TARGET_GETGROUPS_T)
570 gcc_AC_FUNC_VFPRINTF_DOPRNT
572 gcc_AC_FUNC_PRINTF_PTR
577 *** UWIN may not be used as a host platform because
578 *** linking with posix.dll is not allowed by the GNU GPL])
582 AC_FUNC_MMAP_ANYWHERE
585 # We will need to find libiberty.h and ansidecl.h
586 saved_CFLAGS="$CFLAGS"
587 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
588 gcc_AC_CHECK_DECLS(bcopy \
589 getenv atol sbrk abort atof getcwd getwd \
590 strsignal putc_unlocked fputs_unlocked strstr environ \
591 malloc realloc calloc free basename getopt, , ,[
592 #include "gansidecl.h"
593 #include "system.h"])
595 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
596 #include "gansidecl.h"
598 #ifdef HAVE_SYS_RESOURCE_H
599 #include <sys/resource.h>
603 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
604 CFLAGS="$saved_CFLAGS"
606 # mkdir takes a single argument on some systems.
607 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
617 build_install_headers_dir=install-headers-tar
622 host_truncate_target=
625 # Decode the host machine, then the target machine.
626 # For the host machine, we save the xm_file variable as host_xm_file;
627 # then we decode the target machine and forget everything else
628 # that came from the host machine.
629 for machine in $build $host $target; do
630 . ${srcdir}/config.gcc
633 extra_objs="${host_extra_objs} ${extra_objs}"
635 # Default the target-machine variables that were not explicitly set.
636 if test x"$tm_file" = x
637 then tm_file=$cpu_type/$cpu_type.h; fi
639 if test x"$extra_headers" = x
640 then extra_headers=; fi
642 if test x"$xm_file" = x
643 then xm_file=$cpu_type/xm-$cpu_type.h; fi
645 if test x$md_file = x
646 then md_file=$cpu_type/$cpu_type.md; fi
648 if test x$out_file = x
649 then out_file=$cpu_type/$cpu_type.c; fi
651 if test x"$tmake_file" = x
652 then tmake_file=$cpu_type/t-$cpu_type
655 if test x"$dwarf2" = xyes
656 then tm_file="$tm_file tm-dwarf2.h"
659 if test x$float_format = x
660 then float_format=i64
663 if test $float_format = none
664 then float_h_file=Makefile.in
665 else float_h_file=float-$float_format.h
668 # Handle cpp installation.
669 if test x$enable_cpp != xno
671 tmake_file="$tmake_file t-install-cpp"
674 # Say what files are being used for the output code and MD file.
675 echo "Using \`$srcdir/config/$out_file' to output insns."
676 echo "Using \`$srcdir/config/$md_file' as machine description file."
679 for f in $tm_file; do
682 if test $count = ax; then
683 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
685 echo "Using the following target machine macro files:"
686 for f in $tm_file; do
687 echo " $srcdir/config/$f"
692 for f in $host_xm_file; do
695 if test $count = ax; then
696 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
698 echo "Using the following host machine macro files:"
699 for f in $host_xm_file; do
700 echo " $srcdir/config/$f"
704 if test "$host_xm_file" != "$build_xm_file"; then
706 for f in $build_xm_file; do
709 if test $count = ax; then
710 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
712 echo "Using the following build machine macro files:"
713 for f in $build_xm_file; do
714 echo " $srcdir/config/$f"
719 if test x$thread_file = x; then
720 if test x$target_thread_file != x; then
721 thread_file=$target_thread_file
727 # Set up the header files.
728 # $links is the list of header files to create.
729 # $vars is the list of shell variables with file names to include.
730 # auto-host.h is the file containing items generated by autoconf and is
731 # the first file included by config.h.
733 host_xm_file="auto-host.h gansidecl.h ${host_xm_file} defaults.h hwint.h"
735 # If host=build, it is correct to have hconfig include auto-host.h
736 # as well. If host!=build, we are in error and need to do more
737 # work to find out the build config parameters.
738 if test x$host = x$build
740 build_xm_file="auto-host.h gansidecl.h ${build_xm_file} defaults.h hwint.h"
742 # We create a subdir, then run autoconf in the subdir.
743 # To prevent recursion we set host and build for the new
744 # invocation of configure to the build for this invocation
751 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
752 *) realsrcdir=../${srcdir};;
754 CC=${CC_FOR_BUILD} ${realsrcdir}/configure \
755 --target=$target --host=$build --build=$build
757 # We just finished tests for the build machine, so rename
758 # the file auto-build.h in the gcc directory.
759 mv auto-host.h ../auto-build.h
762 build_xm_file="auto-build.h gansidecl.h ${build_xm_file} defaults.h hwint.h"
765 xm_file="gansidecl.h ${xm_file} defaults.h"
766 tm_file="gansidecl.h ${tm_file} defaults.h"
768 vars="host_xm_file tm_file tm_p_file xm_file build_xm_file"
769 links="config.h tm.h tm_p.h tconfig.h hconfig.h"
770 defines="host_xm_defines null_defines null_defines xm_defines build_xm_defines"
773 if test -f config.status; then mv -f config.status config.bak; fi
776 while test -n "$vars"
778 set $vars; var=$1; shift; vars=$*
779 set $links; link=$1; shift; links=$*
780 set $defines; define=$1; shift; defines=$*
783 # Make sure the file is created, even if it is empty.
786 # Define TARGET_CPU_DEFAULT if the system wants one.
787 # This substitutes for lots of *.h files.
788 if test "$target_cpu_default" != "" -a $link = tm.h
790 echo "#define TARGET_CPU_DEFAULT ($target_cpu_default)" >>$link
793 for file in `eval echo '$'$var`; do
795 auto-host.h | auto-build.h )
798 echo '#ifdef IN_GCC' >>$link
801 echo "#include \"$file\"" >>$link
803 auto-host.h | auto-build.h )
806 echo '#endif' >>$link
811 for def in `eval echo '$'$define`; do
812 echo "#ifndef $def" >>$link
813 echo "#define $def" >>$link
814 echo "#endif" >>$link
819 # Include insn-codes.h last, because it includes machmode.h,
820 # and we want EXTRA_CC_MODES to be taken into account.
821 echo "#ifndef GENERATOR_FILE" >>$link
822 echo "#include \"insn-codes.h\"" >>$link
823 echo "#endif" >>$link
827 # Truncate the target if necessary
828 if test x$host_truncate_target != x; then
829 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
832 # Get the version trigger filename from the toplevel
833 if test "${with_gcc_version_trigger+set}" = set; then
834 gcc_version_trigger=$with_gcc_version_trigger
836 gcc_version_trigger=${srcdir}/version.c
839 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
840 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
842 # Compile in configure arguments.
843 if test -f configargs.h ; then
844 # Being re-configured.
845 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
846 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
848 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
850 cat > configargs.h <<EOF
851 /* Generated automatically. */
852 static const char configuration_arguments[] = "$gcc_config_arguments";
853 static const char thread_model[] = "$thread_file";
857 # Internationalization
859 VERSION="$gcc_version"
860 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
861 [Define to the name of the distribution.])
862 AC_DEFINE_UNQUOTED(VERSION, "$VERSION",
863 [Define to the version of the distribution.])
869 # Enable NLS support by default
871 [ --enable-nls use Native Language Support (default)],
874 # if cross compiling, disable NLS support.
875 # It's not worth the trouble, at least for now.
877 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
878 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
882 # if NLS is enabled, also enable check in po subdir
883 if test $enable_nls = yes; then
892 XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT"
894 # Windows32 Registry support for specifying GCC installation paths.
895 AC_ARG_ENABLE(win32-registry,
896 [ --disable-win32-registry
897 Disable lookup of installation paths in the
898 Registry on Windows hosts.
899 --enable-win32-registry Enable registry lookup (default).
900 --enable-win32-registry=KEY
901 Use KEY instead of GCC version as the last portion
902 of the registry key.],,)
904 AC_MSG_CHECKING(whether windows registry support is requested)
905 if test x$enable_win32_registry != xno; then
906 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
907 [Define to 1 if installation paths should be looked up in Windows32
908 Registry. Ignored on non windows32 hosts.])
914 # Check if user specified a different registry key.
915 case x${enable_win32_registry} in
918 gcc_cv_win32_registry_key="$VERSION"
921 # no registry lookup.
922 gcc_cv_win32_registry_key=''
925 # user-specified key.
926 gcc_cv_win32_registry_key="$enable_win32_registry"
930 if test x$enable_win32_registry != xno; then
931 AC_MSG_CHECKING(registry key on windows hosts)
932 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
933 [Define to be the last portion of registry key on windows hosts.])
934 AC_MSG_RESULT($gcc_cv_win32_registry_key)
937 # Get an absolute path to the GCC top-level source directory
943 # Conditionalize the makefile for this host machine.
944 # Make-host contains the concatenation of all host makefile fragments
945 # [there can be more than one]. This file is built by configure.frag.
946 host_overrides=Make-host
948 for f in .. ${host_xmake_file}
950 if test -f ${srcdir}/config/$f
952 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
956 # Conditionalize the makefile for this target machine.
957 # Make-target contains the concatenation of all host makefile fragments
958 # [there can be more than one]. This file is built by configure.frag.
959 target_overrides=Make-target
961 for f in .. ${tmake_file}
963 if test -f ${srcdir}/config/$f
965 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
969 # If the host doesn't support symlinks, modify CC in
970 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
971 # Otherwise, we can use "CC=$(CC)".
973 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
975 cc_set_by_configure="\$(CC)"
976 quoted_cc_set_by_configure="\$(CC)"
977 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
980 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
982 symbolic_link="cp -p"
986 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
987 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
988 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
992 out_object_file=`basename $out_file .c`.o
995 for f in $tm_file; do
997 gansidecl.h | defaults.h )
998 tm_file_list="${tm_file_list} $f" ;;
999 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1004 for f in $host_xm_file; do
1006 auto-host.h | gansidecl.h | defaults.h | hwint.h )
1007 host_xm_file_list="${host_xm_file_list} $f" ;;
1008 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1013 for f in $build_xm_file; do
1015 auto-build.h | auto-host.h | gansidecl.h | defaults.h | hwint.h )
1016 build_xm_file_list="${build_xm_file_list} $f" ;;
1017 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1021 # Define macro CROSS_COMPILE in compilation
1022 # if this is a cross-compiler.
1023 # Also use all.cross instead of all.internal
1024 # and add cross-make to Makefile.
1025 cross_overrides="/dev/null"
1026 if test x$host != x$target
1028 cross_defines="CROSS=-DCROSS_COMPILE"
1029 cross_overrides="${topdir}/cross-make"
1032 # If this is a cross-compiler that does not
1033 # have its own set of headers then define
1036 # If this is using newlib, then define inhibit_libc in
1037 # LIBGCC2_CFLAGS. This will cause __eprintf to be left out of
1038 # libgcc.a, but that's OK because newlib should have its own version of
1041 if [test x$host != x$target] && [test x$with_headers = x]; then
1042 inhibit_libc=-Dinhibit_libc
1044 if [test x$with_newlib = xyes]; then
1045 inhibit_libc=-Dinhibit_libc
1048 AC_SUBST(inhibit_libc)
1050 # When building gcc with a cross-compiler, we need to fix a few things.
1051 # This must come after cross-make as we want all.build to override
1053 build_overrides="/dev/null"
1054 if test x$build != x$host
1056 build_overrides="${topdir}/build-make"
1059 # Expand extra_headers to include complete path.
1060 # This substitutes for lots of t-* files.
1062 if test "x$extra_headers" = x
1065 # Prepend ${srcdir}/ginclude/ to every entry in extra_headers.
1066 for file in $extra_headers;
1068 extra_headers_list="${extra_headers_list} \$(srcdir)/ginclude/${file}"
1072 if test x$use_collect2 = xno; then
1076 # Add a definition of USE_COLLECT2 if system wants one.
1077 # Also tell toplev.c what to do.
1078 # This substitutes for lots of t-* files.
1079 if test x$use_collect2 = x
1084 will_use_collect2="collect2"
1085 maybe_use_collect2="-DUSE_COLLECT2"
1088 # If we have gas in the build tree, make a link to it.
1089 if test -f ../gas/Makefile; then
1090 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1093 # If we have nm in the build tree, make a link to it.
1094 if test -f ../binutils/Makefile; then
1095 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1098 # If we have ld in the build tree, make a link to it.
1099 if test -f ../ld/Makefile; then
1100 # if test x$use_collect2 = x; then
1101 # rm -f ld; $symbolic_link ../ld/ld-new$host_exeext ld$host_exeext 2>/dev/null
1103 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1107 # Figure out what assembler we will be using.
1108 AC_MSG_CHECKING(what assembler to use)
1110 gcc_cv_gas_major_version=
1111 gcc_cv_gas_minor_version=
1112 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1113 if test -x "$DEFAULT_ASSEMBLER"; then
1114 gcc_cv_as="$DEFAULT_ASSEMBLER"
1115 elif test -x "$AS"; then
1117 elif test -x as$host_exeext; then
1118 # Build using assembler in the current directory.
1119 gcc_cv_as=./as$host_exeext
1120 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1121 # Single tree build which includes gas.
1122 for f in $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1125 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1127 if test x$gcc_cv_gas_version != x; then
1132 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1133 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1137 if test "x$gcc_cv_as" = x -a x$host = x$target; then
1139 # Search the same directories that the installed compiler will
1140 # search. Else we may find the wrong assembler and lose. If we
1141 # do not find a suitable assembler binary, then try the user's
1144 # Also note we have to check MD_EXEC_PREFIX before checking the
1145 # user's path. Unfortunately, there is no good way to get at the
1146 # value of MD_EXEC_PREFIX here. So we do a brute force search
1147 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1148 # to be fixed as part of the make/configure rewrite too.
1150 if test "x$exec_prefix" = xNONE; then
1151 if test "x$prefix" = xNONE; then
1152 test_prefix=/usr/local
1157 test_prefix=$exec_prefix
1160 # If the loop below does not find an assembler, then use whatever
1161 # one we can find in the users's path.
1163 gcc_cv_as=as$host_exeext
1165 test_dirs="$test_prefix/lib/gcc-lib/$target/$gcc_version \
1166 $test_prefix/lib/gcc-lib/$target \
1167 /usr/lib/gcc/$target/$gcc_version \
1168 /usr/lib/gcc/$target \
1169 $test_prefix/$target/bin/$target/$gcc_version \
1170 $test_prefix/$target/bin \
1175 /bsd43/usr/lib/cmplrs/cc \
1176 /usr/cross64/usr/bin \
1177 /usr/lib/cmplrs/cc \
1178 /sysv/usr/lib/cmplrs/cc \
1179 /svr4/usr/lib/cmplrs/cc \
1182 for dir in $test_dirs; do
1183 if test -f $dir/as$host_exeext; then
1184 gcc_cv_as=$dir/as$host_exeext
1189 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1190 AC_MSG_RESULT("newly built gas")
1192 AC_MSG_RESULT($gcc_cv_as)
1195 # Figure out what nm we will be using.
1196 AC_MSG_CHECKING(what nm to use)
1197 if test -x nm$host_exeext; then
1198 gcc_cv_nm=./nm$host_exeext
1199 elif test x$host = x$target; then
1201 gcc_cv_nm=nm$host_exeext
1203 AC_MSG_RESULT($gcc_cv_nm)
1205 # Figure out what assembler alignment features are present.
1206 AC_MSG_CHECKING(assembler alignment features)
1207 gcc_cv_as_alignment_features=none
1208 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1209 # Gas version 2.6 and later support for .balign and .p2align.
1210 # bytes to skip when using .p2align.
1211 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1212 gcc_cv_as_alignment_features=".balign and .p2align"
1213 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1215 # Gas version 2.8 and later support specifying the maximum
1216 # bytes to skip when using .p2align.
1217 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1218 gcc_cv_as_alignment_features=".p2align including maximum skip"
1219 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1221 elif test x$gcc_cv_as != x; then
1222 # Check if we have .balign and .p2align
1223 echo ".balign 4" > conftest.s
1224 echo ".p2align 2" >> conftest.s
1225 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1226 gcc_cv_as_alignment_features=".balign and .p2align"
1227 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1229 rm -f conftest.s conftest.o
1230 # Check if specifying the maximum bytes to skip when
1231 # using .p2align is supported.
1232 echo ".p2align 4,,7" > conftest.s
1233 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1234 gcc_cv_as_alignment_features=".p2align including maximum skip"
1235 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1237 rm -f conftest.s conftest.o
1239 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1241 AC_MSG_CHECKING(assembler subsection support)
1242 gcc_cv_as_subsections=no
1243 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1244 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1245 gcc_cv_as_subsections="working .subsection -1"
1247 elif test x$gcc_cv_as != x; then
1248 # Check if we have .subsection
1249 echo ".subsection 1" > conftest.s
1250 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1251 gcc_cv_as_subsections=".subsection"
1252 if test x$gcc_cv_nm != x; then
1253 cat > conftest.s <<EOF
1254 conftest_label1: .word 0
1256 conftest_label2: .word 0
1259 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1260 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1261 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1262 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1265 gcc_cv_as_subsections="working .subsection -1"
1270 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1272 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1273 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1274 [Define if your assembler supports .subsection and .subsection -1 starts
1275 emitting at the beginning of your section.])
1277 AC_MSG_RESULT($gcc_cv_as_subsections)
1279 AC_MSG_CHECKING(assembler weak support)
1281 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1282 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1283 gcc_cv_as_weak="yes"
1285 elif test x$gcc_cv_as != x; then
1286 # Check if we have .weak
1287 echo " .weak foobar" > conftest.s
1288 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1289 gcc_cv_as_weak="yes"
1291 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1293 if test x"$gcc_cv_as_weak" = xyes; then
1294 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1296 AC_MSG_RESULT($gcc_cv_as_weak)
1298 AC_MSG_CHECKING(assembler hidden support)
1300 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1301 if test "$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
1302 gcc_cv_as_hidden="yes"
1304 elif test x$gcc_cv_as != x; then
1305 # Check if we have .hidden
1306 echo " .hidden foobar" > conftest.s
1307 echo "foobar:" >> conftest.s
1308 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1309 gcc_cv_as_hidden="yes"
1311 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1313 if test x"$gcc_cv_as_hidden" = xyes; then
1314 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1315 [Define if your assembler supports .hidden.])
1317 AC_MSG_RESULT($gcc_cv_as_hidden)
1321 AC_CACHE_CHECK([assembler .register pseudo-op support],
1322 gcc_cv_as_register_pseudo_op, [
1323 gcc_cv_as_register_pseudo_op=unknown
1324 if test x$gcc_cv_as != x; then
1325 # Check if we have .register
1326 echo ".register %g2, #scratch" > conftest.s
1327 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1328 gcc_cv_as_register_pseudo_op=yes
1330 gcc_cv_as_register_pseudo_op=no
1332 rm -f conftest.s conftest.o
1335 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1336 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1337 [Define if your assembler supports .register.])
1340 AC_CACHE_CHECK([assembler supports -relax],
1341 gcc_cv_as_relax_opt, [
1342 gcc_cv_as_relax_opt=unknown
1343 if test x$gcc_cv_as != x; then
1344 # Check if gas supports -relax
1345 echo ".text" > conftest.s
1346 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1347 gcc_cv_as_relax_opt=yes
1349 gcc_cv_as_relax_opt=no
1351 rm -f conftest.s conftest.o
1354 if test "x$gcc_cv_as_relax_opt" = xyes; then
1355 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1356 [Define if your assembler supports -relax option.])
1361 AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
1362 gcc_cv_as_flags64, [
1363 if test -n "$gcc_cv_as"; then
1364 echo ".xword foo" > conftest.s
1365 gcc_cv_as_flags64=no
1366 for flag in "-xarch=v9" "-64 -Av9"; do
1367 if $gcc_cv_as $flag -o conftest.o conftest.s \
1368 > /dev/null 2>&1; then
1369 gcc_cv_as_flags64=$flag
1373 rm -f conftest.s conftest.o
1375 if test "$gas" = yes; then
1376 gcc_cv_as_flags64="-64 -Av9"
1378 gcc_cv_as_flags64="-xarch=v9"
1382 if test "x$gcc_cv_as_flags64" = xno; then
1384 tmake_file=`echo " $tmake_file " | sed -e 's, sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1385 dep_tmake_file=`echo " $dep_tmake_file " | sed -e 's, [^ ]*/config/sparc/t-sol2-64 , ,' -e 's,^ ,,' -e 's, $,,'`
1388 AC_DEFINE_UNQUOTED(AS_SPARC64_FLAG, "$gcc_cv_as_flags64",
1389 [Define if the assembler supports 64bit sparc.])
1392 *) gcc_cv_as_flags64=${gcc_cv_as_flags64-no}
1396 if test "x$gcc_cv_as_flags64" != xno; then
1397 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1398 gcc_cv_as_offsetable_lo10, [
1399 gcc_cv_as_offsetable_lo10=unknown
1400 if test "x$gcc_cv_as" != x; then
1401 # Check if assembler has offsetable %lo()
1402 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1403 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1404 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1406 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1407 > /dev/null 2>&1; then
1408 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1409 gcc_cv_as_offsetable_lo10=no
1411 gcc_cv_as_offsetable_lo10=yes
1414 gcc_cv_as_offsetable_lo10=no
1416 rm -f conftest.s conftest.o conftest1.s conftest1.o
1419 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1420 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1421 [Define if your assembler supports offsetable %lo().])
1429 AC_MSG_CHECKING(assembler instructions)
1430 gcc_cv_as_instructions=
1431 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1432 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1433 gcc_cv_as_instructions="filds fists"
1435 elif test x$gcc_cv_as != x; then
1436 set "filds fists" "filds mem; fists mem"
1439 echo "$2" > conftest.s
1440 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1441 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1445 rm -f conftest.s conftest.o
1447 if test x"$gcc_cv_as_instructions" != x; then
1448 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1450 AC_MSG_RESULT($gcc_cv_as_instructions)
1454 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1455 gcc_cv_as_dwarf2_debug_line=no
1456 # ??? Not all targets support dwarf2 debug_line, even within a version
1457 # of gas. Moreover, we need to emit a valid instruction to trigger any
1458 # info to the output file. So, as supported targets are added to gas 2.11,
1459 # add some instruction here to (also) show we expect this might work.
1460 # ??? Once 2.11 is released, probably need to add first known working
1461 # version to the per-target configury.
1463 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-*)
1470 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1472 if test "$gcc_cv_gas_major_version" -eq 2 \
1473 -a "$gcc_cv_gas_minor_version" -ge 11 \
1474 -o "$gcc_cv_gas_major_version" -gt 2 \
1475 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1476 && test x"$insn" != x ; then
1477 gcc_cv_as_dwarf2_debug_line="yes"
1479 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1480 echo ' .file 1 "conftest.s"' > conftest.s
1481 echo ' .loc 1 3 0' >> conftest.s
1482 echo " $insn" >> conftest.s
1483 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1484 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1485 # The .debug_line file table must be in the exact order that
1486 # we specified the files, since these indicies are also used
1487 # by DW_AT_decl_file. Approximate this test by testing if
1488 # the assembler bitches if the same index is assigned twice.
1489 echo ' .file 1 "foo.s"' > conftest.s
1490 echo ' .file 1 "bar.s"' >> conftest.s
1491 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
1493 gcc_cv_as_dwarf2_debug_line="no"
1495 gcc_cv_as_dwarf2_debug_line="yes"
1498 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1500 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1501 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1502 [Define if your assembler supports dwarf2 .file/.loc directives.])
1504 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1506 # Figure out what language subdirectories are present.
1507 # Look if the user specified --enable-languages="..."; if not, use
1508 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1510 if test x"${enable_languages+set}" != xset; then
1511 if test x"${LANGUAGES+set}" = xset; then
1512 enable_languages="`echo ${LANGUAGES} | tr ' ' ','`"
1514 enable_languages=all
1517 if test x"${enable_languages}" = x; then
1518 AC_MSG_ERROR([--enable-languages needs at least one argument])
1522 # First scan to see if an enabled language requires some other language.
1523 # We assume that a given config-lang.in will list all the language
1524 # front ends it requires, even if some are required indirectly.
1525 for lang in ${srcdir}/*/config-lang.in ..
1530 # The odd quoting in the next line works around
1531 # an apparent bug in bash 1.12 on linux.
1533 ${srcdir}/[*]/config-lang.in)
1536 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1537 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
1538 for other in $this_lang_requires
1540 case ,${enable_languages}, in
1546 enable_languages="$enable_languages,$other"
1556 for lang in ${srcdir}/*/config-lang.in ..
1560 # The odd quoting in the next line works around
1561 # an apparent bug in bash 1.12 on linux.
1563 ${srcdir}/[*]/config-lang.in) ;;
1565 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
1566 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
1567 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
1568 if test "x$lang_alias" = x
1570 echo "$lang doesn't set \$language." 1>&2
1573 case ${build_by_default},${enable_languages}, in
1574 *,$lang_alias,*) add_this_lang=yes ;;
1575 no,*) add_this_lang=no ;;
1576 *,all,*) add_this_lang=yes ;;
1577 *) add_this_lang=no ;;
1579 if test x"${add_this_lang}" = xyes; then
1581 ${srcdir}/ada/config-lang.in)
1582 if test x$gnat = xyes ; then
1583 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1587 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
1596 # Make gthr-default.h if we have a thread file.
1598 if test $thread_file != single; then
1599 rm -f gthr-default.h
1600 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1601 gthread_flags=-DHAVE_GTHR_DEFAULT
1603 AC_SUBST(gthread_flags)
1605 # Find out what GC implementation we want, or may, use.
1607 [ --with-gc={simple,page} Choose the garbage collection mechanism to use
1608 with the compiler.],
1614 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
1619 echo "Using $GGC for garbage collection."
1621 # Use the system's zlib library.
1623 zlibinc="-I\$(srcdir)/../zlib"
1624 AC_ARG_WITH(system-zlib,
1625 [ --with-system-zlib use installed libz],
1632 AC_DEFINE_UNQUOTED(ENABLE_STD_NAMESPACE, 1,
1633 [Define to 1 if you want to enable namespaces (-fhonor-std) by default.])
1635 dnl Very limited version of automake's enable-maintainer-mode
1637 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1638 dnl maintainer-mode is disabled by default
1639 AC_ARG_ENABLE(maintainer-mode,
1640 [ --enable-maintainer-mode enable make rules and dependencies not useful
1641 (and sometimes confusing) to the casual installer],
1642 maintainer_mode=$enableval,
1645 AC_MSG_RESULT($maintainer_mode)
1647 if test "$maintainer_mode" = "yes"; then
1654 # Make empty files to contain the specs and options for each language.
1655 # Then add #include lines to for a compiler that has specs and/or options.
1660 rm -f specs.h options.h gencheck.h
1661 touch specs.h options.h gencheck.h
1662 for subdir in . $subdirs
1664 if test -f $srcdir/$subdir/lang-specs.h; then
1665 echo "#include \"$subdir/lang-specs.h\"" >>specs.h
1666 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
1668 if test -f $srcdir/$subdir/lang-options.h; then
1669 echo "#include \"$subdir/lang-options.h\"" >>options.h
1670 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
1672 if test -f $srcdir/$subdir/$subdir-tree.def; then
1673 echo "#include \"$subdir/$subdir-tree.def\"" >>gencheck.h
1674 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
1678 # These (without "all_") are set in each config-lang.in.
1679 # `language' must be a single word so is spelled singularly.
1685 all_outputs='Makefile intl/Makefile po/Makefile.in fixinc/Makefile gccbug mklibgcc'
1686 # List of language makefile fragments.
1691 # Add the language fragments.
1692 # Languages are added via two mechanisms. Some information must be
1693 # recorded in makefile variables, these are defined in config-lang.in.
1694 # We accumulate them and plug them into the main Makefile.
1695 # The other mechanism is a set of hooks for each of the main targets
1696 # like `clean', `install', etc.
1698 language_fragments="Make-lang"
1699 language_hooks="Make-hooks"
1701 for s in .. $subdirs
1713 . ${srcdir}/$s/config-lang.in
1714 if test "x$language" = x
1716 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
1719 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
1720 if test -f ${srcdir}/$s/Makefile.in
1721 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
1723 all_languages="$all_languages $language"
1724 if test "x$boot_language" = xyes
1726 all_boot_languages="$all_boot_languages $language"
1728 all_compilers="$all_compilers $compilers"
1729 all_stagestuff="$all_stagestuff $stagestuff"
1730 all_diff_excludes="$all_diff_excludes $diff_excludes"
1731 all_headers="$all_headers $headers"
1732 all_outputs="$all_outputs $outputs"
1733 all_lib2funcs="$all_lib2funcs $lib2funcs"
1737 # Since we can't use `::' targets, we link each language in
1738 # with a set of hooks, reached indirectly via lang.${target}.
1742 target_list="all.build all.cross start.encap rest.encap \
1744 install-normal install-common install-info install-man \
1746 mostlyclean clean distclean extraclean maintainer-clean \
1747 stage1 stage2 stage3 stage4"
1748 for t in $target_list
1751 for lang in .. $all_languages
1753 if test $lang != ".."; then
1757 echo "lang.$t: $x" >> Make-hooks
1760 # If we're not building in srcdir, create .gdbinit.
1762 if test ! -f Makefile.in; then
1763 echo "dir ." > .gdbinit
1764 echo "dir ${srcdir}" >> .gdbinit
1765 if test x$gdb_needs_out_file_path = xyes
1767 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
1769 if test "x$subdirs" != x; then
1772 echo "dir ${srcdir}/$s" >> .gdbinit
1775 echo "source ${srcdir}/.gdbinit" >> .gdbinit
1778 # Define variables host_canonical and build_canonical
1779 # because some Cygnus local changes in the Makefile depend on them.
1780 build_canonical=${build}
1781 host_canonical=${host}
1783 if test "${host}" != "${target}" ; then
1784 target_subdir=${target_alias}/
1786 AC_SUBST(build_canonical)
1787 AC_SUBST(host_canonical)
1788 AC_SUBST(target_subdir)
1790 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
1791 # absolute path for gcc_tooldir based on inserting the number of up-directory
1792 # movements required to get from $(exec_prefix) to $(prefix) into the basic
1793 # $(libsubdir)/@(unlibsubdir) based path.
1794 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
1795 # make and thus we'd get different behavior depending on where we built the
1797 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
1798 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
1800 changequote(<<, >>)dnl
1801 # An explanation of the sed strings:
1802 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
1803 # -e 's|/$||' match a trailing forward slash and eliminates it
1804 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
1805 # -e 's|/[^/]*|../|g' replaces each occurance of /<directory> with ../
1807 # (*) Note this pattern overwrites the first character of the string
1808 # with a forward slash if one is not already present. This is not a
1809 # problem because the exact names of the sub-directories concerned is
1810 # unimportant, just the number of them matters.
1812 # The practical upshot of these patterns is like this:
1814 # prefix exec_prefix result
1815 # ------ ----------- ------
1817 # /foo/ /foo/bar ../
1818 # /foo /foo/bar/ ../
1819 # /foo/ /foo/bar/ ../
1820 # /foo /foo/bar/ugg ../../
1823 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
1824 changequote([, ])dnl
1826 AC_SUBST(gcc_tooldir)
1829 # Find a directory in which to install a shared libgcc.
1831 AC_ARG_ENABLE(version-specific-runtime-libs,
1832 [ --enable-version-specific-runtime-libs Specify that runtime libraries shou
1833 ld be installed in a compiler-specific directory ])
1835 AC_ARG_WITH(slibdir,
1836 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
1837 slibdir="$with_slibdir",
1838 if test "${enable_version_specific_runtime_libs+set}" = set; then
1839 slibdir='$(libsubdir)'
1840 elif test "$host" != "$target"; then
1841 slibdir='$(build_tooldir)/lib'
1847 # Nothing to do for FLOAT_H, float_format already handled.
1851 # Process the language and host/target makefile fragments.
1852 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
1854 # Substitute configuration variables
1856 AC_SUBST(all_boot_languages)
1857 AC_SUBST(all_compilers)
1858 AC_SUBST(all_diff_excludes)
1859 AC_SUBST(all_headers)
1860 AC_SUBST(all_lang_makefiles)
1861 AC_SUBST(all_languages)
1862 AC_SUBST(all_lib2funcs)
1863 AC_SUBST(all_stagestuff)
1864 AC_SUBST(build_exeext)
1865 AC_SUBST(build_install_headers_dir)
1866 AC_SUBST(build_xm_file_list)
1867 AC_SUBST(cc_set_by_configure)
1868 AC_SUBST(quoted_cc_set_by_configure)
1869 AC_SUBST(cpp_install_dir)
1870 AC_SUBST(dep_host_xmake_file)
1871 AC_SUBST(dep_tmake_file)
1872 AC_SUBST(extra_c_flags)
1873 AC_SUBST(extra_headers_list)
1874 AC_SUBST(extra_objs)
1875 AC_SUBST(extra_parts)
1876 AC_SUBST(extra_passes)
1877 AC_SUBST(extra_programs)
1878 AC_SUBST(float_h_file)
1879 AC_SUBST(gcc_config_arguments)
1880 AC_SUBST(gcc_gxx_include_dir)
1881 AC_SUBST(libstdcxx_incdir)
1882 AC_SUBST(gcc_version)
1883 AC_SUBST(gcc_version_full)
1884 AC_SUBST(gcc_version_trigger)
1885 AC_SUBST(host_exeext)
1886 AC_SUBST(host_extra_gcc_objs)
1887 AC_SUBST(host_xm_file_list)
1889 AC_SUBST(lang_options_files)
1890 AC_SUBST(lang_specs_files)
1891 AC_SUBST(lang_tree_files)
1892 AC_SUBST(local_prefix)
1893 AC_SUBST(maybe_use_collect2)
1895 AC_SUBST(objc_boehm_gc)
1897 AC_SUBST(out_object_file)
1898 AC_SUBST(stage_prefix_set_by_configure)
1899 AC_SUBST(symbolic_link)
1900 AC_SUBST(thread_file)
1901 AC_SUBST(tm_file_list)
1902 AC_SUBST(will_use_collect2)
1903 AC_SUBST(c_target_objs)
1904 AC_SUBST(cxx_target_objs)
1907 AC_SUBST_FILE(target_overrides)
1908 AC_SUBST_FILE(host_overrides)
1909 AC_SUBST(cross_defines)
1910 AC_SUBST_FILE(cross_overrides)
1911 AC_SUBST_FILE(build_overrides)
1912 AC_SUBST_FILE(language_fragments)
1913 AC_SUBST_FILE(language_hooks)
1915 # Echo that links are built
1916 if test x$host = x$target
1924 if test x$host != x$build
1926 str3=" on a $build system"
1929 if test "x$str2" != x || test "x$str3" != x
1934 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
1936 if test "x$str2" != x || test "x$str3" != x
1938 echo " ${str2}${str3}." 1>&2
1941 # Truncate the target if necessary
1942 if test x$host_truncate_target != x; then
1943 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1946 # Configure the subdirectories
1947 # AC_CONFIG_SUBDIRS($subdirs)
1949 # Create the Makefile
1950 # and configure language subdirectories
1951 AC_OUTPUT($all_outputs,
1953 case x$CONFIG_HEADERS in
1954 xauto-host.h:config.in)
1957 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
1958 # bootstrapping and the installation procedure can still use
1959 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
1960 # FLAGS_TO_PASS has been modified to solve the problem there.
1961 # This is virtually a duplicate of what happens in configure.lang; we do
1962 # an extra check to make sure this only happens if ln -s can be used.
1963 if test "$symbolic_link" = "ln -s"; then
1964 for d in .. ${subdirs} ; do
1965 if test $d != ..; then
1968 for t in stage1 stage2 stage3 stage4 include
1971 $symbolic_link ../$t $t 2>/dev/null
1977 # Avoid having to add intl to our include paths.
1978 if test -f intl/libintl.h; then
1979 echo creating libintl.h
1980 echo '#include "intl/libintl.h"' >libintl.h
1987 target_alias='${target_alias}'
1989 subdirs='${subdirs}'
1990 symbolic_link='${symbolic_link}'
1991 program_transform_set='${program_transform_set}'
1992 program_transform_name='${program_transform_name}'
1993 dep_host_xmake_file='${dep_host_xmake_file}'
1994 host_xmake_file='${host_xmake_file}'
1995 dep_tmake_file='${dep_tmake_file}'
1996 tmake_file='${tmake_file}'
1997 thread_file='${thread_file}'
1998 gcc_config_arguments='${gcc_config_arguments}'
1999 gcc_version='${gcc_version}'
2000 gcc_version_full='${gcc_version_full}'
2001 gcc_version_trigger='${gcc_version_trigger}'
2002 local_prefix='${local_prefix}'
2003 build_install_headers_dir='${build_install_headers_dir}'
2004 build_exeext='${build_exeext}'
2005 host_exeext='${host_exeext}'
2006 out_file='${out_file}'
2007 gdb_needs_out_file_path='${gdb_needs_out_file_path}'
2008 SET_MAKE='${SET_MAKE}'
2009 target_list='${target_list}'
2010 target_overrides='${target_overrides}'
2011 host_overrides='${host_overrides}'
2012 cross_defines='${cross_defines}'
2013 cross_overrides='${cross_overrides}'
2014 build_overrides='${build_overrides}'
2015 cpp_install_dir='${cpp_install_dir}'