2 # Process this file with autoconf to generate a configuration script.
4 # Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
6 #This file is part of GCC.
8 #GCC is free software; you can redistribute it and/or modify it under
9 #the terms of the GNU General Public License as published by the Free
10 #Software Foundation; either version 2, or (at your option) any later
13 #GCC is distributed in the hope that it will be useful, but WITHOUT
14 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 #You should have received a copy of the GNU General Public License
19 #along with GCC; see the file COPYING. If not, write to the Free
20 #Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 # Initialization and defaults
26 AC_CONFIG_HEADER(auto-host.h:config.in)
33 # Check for bogus environment variables.
34 # Test if LIBRARY_PATH contains the notation for the current directory
35 # since this would lead to problems installing/building glibc.
36 # LIBRARY_PATH contains the current directory if one of the following
38 # - one of the terminals (":" and ";") is the first or last sign
39 # - two terminals occur directly after each other
40 # - the path contains an element with a dot in it
41 AC_MSG_CHECKING(LIBRARY_PATH variable)
43 case ${LIBRARY_PATH} in
44 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
45 library_path_setting="contains current directory"
48 library_path_setting="ok"
52 AC_MSG_RESULT($library_path_setting)
53 if test "$library_path_setting" != "ok"; then
55 *** LIBRARY_PATH shouldn't contain the current directory when
56 *** building gcc. Please change the environment variable
57 *** and run configure again.])
60 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
61 # since this would lead to problems installing/building glibc.
62 # GCC_EXEC_PREFIX contains the current directory if one of the following
64 # - one of the terminals (":" and ";") is the first or last sign
65 # - two terminals occur directly after each other
66 # - the path contains an element with a dot in it
67 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
69 case ${GCC_EXEC_PREFIX} in
70 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
71 gcc_exec_prefix_setting="contains current directory"
74 gcc_exec_prefix_setting="ok"
78 AC_MSG_RESULT($gcc_exec_prefix_setting)
79 if test "$gcc_exec_prefix_setting" != "ok"; then
81 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
82 *** building gcc. Please change the environment variable
83 *** and run configure again.])
86 # Check for additional parameters
90 [ --with-gnu-ld arrange to work with GNU ld.],
91 gnu_ld_flag="$with_gnu_ld",
96 [ --with-ld arrange to use the specified ld (full pathname)],
97 DEFAULT_LINKER="$with_ld")
98 if test x"${DEFAULT_LINKER+set}" = x"set"; then
99 if test ! -x "$DEFAULT_LINKER"; then
100 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
101 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
104 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
105 [Define to enable the use of a default linker.])
110 [ --with-gnu-as arrange to work with GNU as],
111 gas_flag="$with_gnu_as",
115 [ --with-as arrange to use the specified as (full pathname)],
116 DEFAULT_ASSEMBLER="$with_as")
117 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
118 if test ! -x "$DEFAULT_ASSEMBLER"; then
119 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
120 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
123 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
124 [Define to enable the use of a default assembler.])
129 [ --with-stabs arrange to use stabs instead of host debug format],
135 [ --with-elf arrange to use ELF instead of host debug format],
139 # Specify the local prefix
141 AC_ARG_WITH(local-prefix,
142 [ --with-local-prefix=DIR specifies directory to put local include],
143 [case "${withval}" in
144 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
146 *) local_prefix=$with_local_prefix ;;
149 # Default local prefix if it is empty
150 if test x$local_prefix = x; then
151 local_prefix=/usr/local
154 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
155 # passed in by the toplevel make and thus we'd get different behavior
156 # depending on where we built the sources.
158 # Specify the g++ header file directory
159 AC_ARG_WITH(gxx-include-dir,
160 [ --with-gxx-include-dir=DIR
161 specifies directory to put g++ header files],
162 [case "${withval}" in
163 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
165 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
168 if test x${gcc_gxx_include_dir} = x; then
169 if test x${enable_version_specific_runtime_libs} = xyes; then
170 gcc_gxx_include_dir='${libsubdir}/include/g++'
172 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
173 changequote(<<, >>)dnl
174 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
179 # Determine whether or not multilibs are enabled.
180 AC_ARG_ENABLE(multilib,
181 [ --enable-multilib enable library support for multiple ABIs],
182 [], [enable_multilib=yes])
183 AC_SUBST(enable_multilib)
185 # Enable expensive internal checks
186 AC_ARG_ENABLE(checking,
187 [ --enable-checking[=LIST]
188 enable expensive run-time checks. With LIST,
189 enable only specific categories of checks.
190 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
191 default is misc,tree,gc,rtlflag],
197 ac_gc_always_collect=
198 case "${enableval}" in
199 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
200 ac_rtlflag_checking=1 ;;
202 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
203 set fnord $enableval; shift
208 misc) ac_checking=1 ;;
209 tree) ac_tree_checking=1 ;;
210 rtlflag) ac_rtlflag_checking=1 ;;
211 rtl) ac_rtl_checking=1 ;;
212 gc) ac_gc_checking=1 ;;
213 gcac) ac_gc_always_collect=1 ;;
214 *) AC_MSG_ERROR(unknown check category $check) ;;
220 # Enable some checks by default for development versions of GCC
221 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
222 if test x$ac_checking != x ; then
223 AC_DEFINE(ENABLE_CHECKING, 1,
224 [Define if you want more run-time sanity checks. This one gets a grab
225 bag of miscellaneous but relatively cheap checks.])
227 if test x$ac_tree_checking != x ; then
228 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
229 [Define if you want all operations on trees (the basic data
230 structure of the front ends) to be checked for dynamic type safety
231 at runtime. This is moderately expensive.])
233 if test x$ac_rtl_checking != x ; then
234 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
235 [Define if you want all operations on RTL (the basic data structure
236 of the optimizer and back end) to be checked for dynamic type safety
237 at runtime. This is quite expensive.])
239 if test x$ac_rtlflag_checking != x ; then
240 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
241 [Define if you want RTL flag accesses to be checked against the RTL
242 codes that are supported for each access macro. This is relatively
245 if test x$ac_gc_checking != x ; then
246 AC_DEFINE(ENABLE_GC_CHECKING, 1,
247 [Define if you want the garbage collector to do object poisoning and
248 other memory allocation checks. This is quite expensive.])
250 if test x$ac_gc_always_collect != x ; then
251 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
252 [Define if you want the garbage collector to operate in maximally
253 paranoid mode, validating the entire heap and collecting garbage at
254 every opportunity. This is extremely expensive.])
257 AC_ARG_WITH(cpp_install_dir,
258 [ --with-cpp-install-dir=DIR
259 install the user visible C preprocessor in DIR
260 (relative to PREFIX) as well as PREFIX/bin],
261 [if test x$withval = xyes; then
262 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
263 elif test x$withval != xno; then
264 cpp_install_dir=$withval
267 # Enable Multibyte Characters for C/C++
268 AC_ARG_ENABLE(c-mbchar,
269 [ --enable-c-mbchar enable multibyte characters for C and C++],
270 if test x$enable_c_mbchar != xno; then
271 AC_DEFINE(MULTIBYTE_CHARS, 1,
272 [Define if you want the C and C++ compilers to support multibyte
273 character sets for source code.])
277 # Pass with no value to take the default
278 # Pass with a value to specify a thread package
279 AC_ARG_ENABLE(threads,
280 [ --enable-threads enable thread usage for target GCC
281 --enable-threads=LIB use LIB thread package for target GCC],,
284 enable_threads_flag=$enable_threads
285 # Check if a valid thread package
286 case x${enable_threads_flag} in
289 target_thread_file='single'
293 target_thread_file=''
295 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
296 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
297 target_thread_file=$enable_threads_flag
300 echo "$enable_threads is an unknown thread package" 1>&2
305 AC_ARG_ENABLE(objc-gc,
306 [ --enable-objc-gc enable the use of Boehm's garbage collector with
307 the GNU Objective-C runtime],
308 if test x$enable_objc_gc = xno; then
316 [ --with-dwarf2 force the default debug format to be DWARF 2],
317 dwarf2="$with_dwarf2",
320 AC_ARG_ENABLE(shared,
321 [ --disable-shared don't provide a shared libgcc],
323 case $enable_shared in
327 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
328 for pkg in $enableval; do
329 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
336 ], [enable_shared=yes])
337 AC_SUBST(enable_shared)
339 # Determine the host, build, and target systems
342 # Set program_transform_name
345 # Find the native compiler
348 # autoconf is lame and doesn't give us any substitution variable for this.
349 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
350 NO_MINUS_C_MINUS_O=yes
352 OUTPUT_OPTION='-o $@'
354 AC_SUBST(NO_MINUS_C_MINUS_O)
355 AC_SUBST(OUTPUT_OPTION)
357 # See if GNAT has been installed
360 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
361 ac_cv_prog_cc_no_long_long,
362 [save_CFLAGS="$CFLAGS"
363 CFLAGS="-Wno-long-long"
364 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
365 ac_cv_prog_cc_no_long_long=no)
366 CFLAGS="$save_CFLAGS"])
368 if test x$have_gnat != xno ; then
369 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
370 ac_cv_prog_adac_no_long_long,
371 [cat >conftest.adb <<EOF
372 procedure conftest is begin null; end conftest;
374 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
375 ac_cv_prog_adac_no_long_long=yes
377 ac_cv_prog_adac_no_long_long=no
381 ac_cv_prog_adac_no_long_long=yes
385 if test $ac_cv_prog_cc_no_long_long = yes && \
386 test $ac_cv_prog_adac_no_long_long = yes ; then
387 strict1_warn="-pedantic -Wno-long-long"
389 AC_SUBST(strict1_warn)
399 # sizeof(char) is 1 by definition.
400 gcc_AC_COMPILE_CHECK_SIZEOF(short)
401 gcc_AC_COMPILE_CHECK_SIZEOF(int)
402 gcc_AC_COMPILE_CHECK_SIZEOF(long)
403 if test $ac_cv_c_long_long = yes; then
404 gcc_AC_COMPILE_CHECK_SIZEOF(long long)
406 if test $ac_cv_c___int64 = yes; then
407 gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
412 # If the native compiler is GCC, we can enable warnings even in stage1.
413 # That's useful for people building cross-compilers, or just running a
416 if test "x$GCC" = "xyes"; then
417 warn_cflags='$(GCC_WARN_CFLAGS)'
419 AC_SUBST(warn_cflags)
421 # Stage specific cflags for build.
427 stage1_cflags="-Wa,-J"
433 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
434 # sources; use -no-cpp-precomp to get to GNU cpp.
435 # Apple's GCC has bugs in designated initializer handling, so disable
437 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
440 AC_SUBST(stage1_cflags)
444 AC_MSG_CHECKING([whether a default assembler was specified])
445 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
446 if test x"$gas_flag" = x"no"; then
447 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
449 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
455 AC_MSG_CHECKING([whether a default linker was specified])
456 if test x"${DEFAULT_LINKER+set}" = x"set"; then
457 if test x"$gnu_ld_flag" = x"no"; then
458 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
460 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
466 AC_MSG_CHECKING(for GNU C library)
467 AC_CACHE_VAL(gcc_cv_glibc,
469 [#include <features.h>],[
470 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
471 #error Not a GNU C library system
475 AC_MSG_RESULT($gcc_cv_glibc)
476 if test $gcc_cv_glibc = yes; then
477 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
480 # Find some useful tools
489 gcc_AC_HEADER_STDBOOL
492 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
493 fcntl.h unistd.h sys/file.h sys/time.h \
494 sys/resource.h sys/param.h sys/times.h sys/stat.h \
495 direct.h malloc.h langinfo.h)
497 # Check for thread headers.
498 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
499 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
501 # These tests can't be done till we know if we have limits.h.
503 gcc_AC_C_COMPILE_ENDIAN
504 gcc_AC_C_FLOAT_FORMAT
506 # See if we have the mktemp command.
507 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
509 # Do we have a single-tree copy of texinfo?
510 if test -f $srcdir/../texinfo/Makefile.in; then
511 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
512 gcc_cv_prog_makeinfo_modern=yes
513 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
515 # See if makeinfo has been installed and is modern enough
516 # that we can use it.
517 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
518 [GNU texinfo.* \([0-9][0-9.]*\)],
522 if test $gcc_cv_prog_makeinfo_modern = no; then
524 *** Makeinfo is missing or too old.
525 *** Info documentation will not be built.])
528 BUILD_INFO=info AC_SUBST(BUILD_INFO)
531 # Is pod2man recent enough to regenerate manpages?
532 AC_MSG_CHECKING([for recent Pod::Man])
533 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
535 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
542 dnl Don't use AC_PROG_LEX; we insist on flex.
543 dnl LEXLIB is not useful in gcc.
544 if test -f $srcdir/../flex/skel.c; then
545 FLEX='$(objdir)/../flex/flex'
547 AC_CHECK_PROG(FLEX, flex, flex, false)
551 # The -L switch is so bison can find its skeleton file.
552 if test -f $srcdir/../bison/bison.simple; then
553 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
555 AC_CHECK_PROG(BISON, bison, bison, false)
558 # These libraries may be used by collect2.
559 # We may need a special search path to get them linked.
560 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
562 for libs in '' -lld -lmld \
563 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
564 '-L/usr/lib/cmplrs/cc3.11 -lmld'
567 AC_TRY_LINK_FUNC(ldopen,
568 [gcc_cv_collect2_libs="$libs"; break])
571 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
572 case $gcc_cv_collect2_libs in
574 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
576 AC_SUBST(COLLECT2_LIBS)
578 # When building Ada code on Alpha, we need exc_resume which is usually in
579 # -lexc. So test for it.
582 AC_SEARCH_LIBS(exc_resume, exc)
585 AC_SUBST(GNAT_LIBEXC)
587 # See if the stage1 system preprocessor understands the ANSI C
588 # preprocessor stringification operator. (Used by symcat.h.)
591 # Use <inttypes.h> only if it exists,
592 # doesn't clash with <sys/types.h>, and declares intmax_t.
593 AC_MSG_CHECKING(for inttypes.h)
594 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
596 [#include <sys/types.h>
597 #include <inttypes.h>],
599 [gcc_cv_header_inttypes_h=yes],
600 gcc_cv_header_inttypes_h=no)])
601 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
602 if test $gcc_cv_header_inttypes_h = yes; then
603 AC_DEFINE(HAVE_INTTYPES_H, 1,
604 [Define if you have a working <inttypes.h> header file.])
607 dnl Disabled until we have a complete test for buggy enum bitfields.
608 dnl gcc_AC_C_ENUM_BF_UNSIGNED
610 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
611 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
612 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
615 AC_CHECK_TYPE(ssize_t, int)
617 # Try to determine the array type of the second argument of getgroups
618 # for the target system (int or gid_t).
620 if test "${target}" = "${build}"; then
621 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
624 # This condition may need some tweaking. It should include all
625 # targets where the array type of the second argument of getgroups
626 # is int and the type of gid_t is not equivalent to int.
627 *-*-sunos* | *-*-ultrix*)
628 TARGET_GETGROUPS_T=int
631 TARGET_GETGROUPS_T=gid_t
635 AC_SUBST(TARGET_GETGROUPS_T)
637 gcc_AC_FUNC_PRINTF_PTR
642 *** UWIN may not be used as a host platform because
643 *** linking with posix.dll is not allowed by the GNU GPL])
646 # Under VMS, vfork works very different than on Unix. The standard test
647 # won't work, and it isn't easily adaptable. It makes more sense to
649 ac_cv_func_vfork_works=yes
653 AC_FUNC_MMAP_ANYWHERE
658 # We will need to find libiberty.h and ansidecl.h
659 saved_CFLAGS="$CFLAGS"
660 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
661 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
662 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
663 fprintf_unlocked strstr errno \
664 malloc realloc calloc free basename getopt clock, , ,[
665 #include "ansidecl.h"
666 #include "system.h"])
668 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
669 #include "ansidecl.h"
671 #ifdef HAVE_SYS_RESOURCE_H
672 #include <sys/resource.h>
676 gcc_AC_CHECK_DECLS(times, , ,[
677 #include "ansidecl.h"
679 #ifdef HAVE_SYS_TIMES_H
680 #include <sys/times.h>
684 # More time-related stuff.
685 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
687 #include "ansidecl.h"
689 #ifdef HAVE_SYS_TIMES_H
690 #include <sys/times.h>
692 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
693 if test $ac_cv_struct_tms = yes; then
694 AC_DEFINE(HAVE_STRUCT_TMS, 1,
695 [Define if <sys/times.h> defines struct tms.])
698 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
699 # revisit after autoconf 2.50.
700 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
702 #include "ansidecl.h"
704 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
705 if test $gcc_cv_type_clock_t = yes; then
706 AC_DEFINE(HAVE_CLOCK_T, 1,
707 [Define if <time.h> defines clock_t.])
710 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
711 CFLAGS="$saved_CFLAGS"
713 # mkdir takes a single argument on some systems.
714 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
725 build_install_headers_dir=install-headers-tar
730 host_truncate_target=
733 # Decode the host machine, then the target machine.
734 # For the host machine, we save the xm_file variable as host_xm_file;
735 # then we decode the target machine and forget everything else
736 # that came from the host machine.
737 for machine in $build $host $target; do
738 . ${srcdir}/config.gcc
741 extra_objs="${host_extra_objs} ${extra_objs}"
743 # Default the target-machine variables that were not explicitly set.
744 if test x"$tm_file" = x
745 then tm_file=$cpu_type/$cpu_type.h; fi
747 if test x"$extra_headers" = x
748 then extra_headers=; fi
750 if test x$md_file = x
751 then md_file=$cpu_type/$cpu_type.md; fi
753 if test x$out_file = x
754 then out_file=$cpu_type/$cpu_type.c; fi
756 if test x"$tmake_file" = x
757 then tmake_file=$cpu_type/t-$cpu_type
760 if test x"$dwarf2" = xyes
761 then tm_file="$tm_file tm-dwarf2.h"
764 if test x$float_format = x
765 then float_format=i64
768 if test $float_format = none
769 then float_h_file=Makefile.in
770 else float_h_file=float-$float_format.h
773 # Say what files are being used for the output code and MD file.
774 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
775 echo "Using \`$srcdir/config/$md_file' as machine description file."
777 # If any of the xm_file variables contain nonexistent files, warn
778 # about them and drop them.
781 for x in $build_xm_file; do
782 if test -f $srcdir/config/$x
784 else AC_MSG_WARN($srcdir/config/$x does not exist.)
790 for x in $host_xm_file; do
791 if test -f $srcdir/config/$x
793 else AC_MSG_WARN($srcdir/config/$x does not exist.)
799 for x in $xm_file; do
800 if test -f $srcdir/config/$x
802 else AC_MSG_WARN($srcdir/config/$x does not exist.)
808 for f in $tm_file; do
811 if test $count = ax; then
812 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
814 echo "Using the following target machine macro files:"
815 for f in $tm_file; do
816 echo " $srcdir/config/$f"
821 for f in $host_xm_file; do
824 if test $count = a; then
826 elif test $count = ax; then
827 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
829 echo "Using the following host machine macro files:"
830 for f in $host_xm_file; do
831 echo " $srcdir/config/$f"
835 if test "$host_xm_file" != "$build_xm_file"; then
837 for f in $build_xm_file; do
840 if test $count = a; then
842 elif test $count = ax; then
843 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
845 echo "Using the following build machine macro files:"
846 for f in $build_xm_file; do
847 echo " $srcdir/config/$f"
852 if test x$thread_file = x; then
853 if test x$target_thread_file != x; then
854 thread_file=$target_thread_file
860 # auto-host.h is the file containing items generated by autoconf and is
861 # the first file included by config.h.
862 # If host=build, it is correct to have hconfig include auto-host.h
863 # as well. If host!=build, we are in error and need to do more
864 # work to find out the build config parameters.
865 if test x$host = x$build
867 build_auto=auto-host.h
870 # We create a subdir, then run autoconf in the subdir.
871 # To prevent recursion we set host and build for the new
872 # invocation of configure to the build for this invocation
879 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
880 *) realsrcdir=../${srcdir};;
882 saved_CFLAGS="${CFLAGS}"
883 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
884 ${realsrcdir}/configure \
885 --target=$target_alias --host=$build_alias --build=$build_alias
886 CFLAGS="${saved_CFLAGS}"
888 # We just finished tests for the build machine, so rename
889 # the file auto-build.h in the gcc directory.
890 mv auto-host.h ../auto-build.h
893 build_auto=auto-build.h
898 tm_file="${tm_file} defaults.h"
899 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
900 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
901 xm_file="ansidecl.h ${xm_file} ${tm_file}"
903 # Truncate the target if necessary
904 if test x$host_truncate_target != x; then
905 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
908 # Get the version trigger filename from the toplevel
909 if test "${with_gcc_version_trigger+set}" = set; then
910 gcc_version_trigger=$with_gcc_version_trigger
912 gcc_version_trigger=${srcdir}/version.c
915 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
916 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
918 # Compile in configure arguments.
919 if test -f configargs.h ; then
920 # Being re-configured.
921 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
922 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
924 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
926 cat > configargs.h <<EOF
927 /* Generated automatically. */
928 static const char configuration_arguments[] = "$gcc_config_arguments";
929 static const char thread_model[] = "$thread_file";
933 # Internationalization
935 VERSION="$gcc_version"
939 # Enable NLS support by default
941 [ --enable-nls use Native Language Support (default)],
944 # if cross compiling, disable NLS support.
945 # It's not worth the trouble, at least for now.
947 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
948 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
954 # Windows32 Registry support for specifying GCC installation paths.
955 AC_ARG_ENABLE(win32-registry,
956 [ --disable-win32-registry
957 disable lookup of installation paths in the
958 Registry on Windows hosts
959 --enable-win32-registry enable registry lookup (default)
960 --enable-win32-registry=KEY
961 use KEY instead of GCC version as the last portion
962 of the registry key],,)
964 win32 | pe | cygwin* | mingw32* | uwin*)
965 AC_MSG_CHECKING(whether windows registry support is requested)
966 if test "x$enable_win32_registry" != xno; then
967 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
968 [Define to 1 if installation paths should be looked up in Windows32
969 Registry. Ignored on non windows32 hosts.])
971 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
976 # Check if user specified a different registry key.
977 case "x${enable_win32_registry}" in
980 gcc_cv_win32_registry_key="$VERSION"
983 # no registry lookup.
984 gcc_cv_win32_registry_key=''
987 # user-specified key.
988 gcc_cv_win32_registry_key="$enable_win32_registry"
992 if test "x$enable_win32_registry" != xno; then
993 AC_MSG_CHECKING(registry key on windows hosts)
994 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
995 [Define to be the last portion of registry key on windows hosts.])
996 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1001 # Get an absolute path to the GCC top-level source directory
1002 holddir=`${PWDCMD-pwd}`
1004 topdir=`${PWDCMD-pwd}`
1007 # Conditionalize the makefile for this host machine.
1008 # Make-host contains the concatenation of all host makefile fragments
1009 # [there can be more than one]. This file is built by configure.frag.
1010 host_overrides=Make-host
1011 dep_host_xmake_file=
1012 for f in .. ${host_xmake_file}
1014 if test -f ${srcdir}/config/$f
1016 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1020 # Conditionalize the makefile for this target machine.
1021 # Make-target contains the concatenation of all host makefile fragments
1022 # [there can be more than one]. This file is built by configure.frag.
1023 target_overrides=Make-target
1025 for f in .. ${tmake_file}
1027 if test -f ${srcdir}/config/$f
1029 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1033 # If the host doesn't support symlinks, modify CC in
1034 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1035 # Otherwise, we can use "CC=$(CC)".
1037 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1039 cc_set_by_configure="\$(CC)"
1040 quoted_cc_set_by_configure="\$(CC)"
1041 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1042 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1045 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1047 symbolic_link="cp -p"
1051 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1052 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1053 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1054 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1058 out_object_file=`basename $out_file .c`.o
1061 for f in $tm_file; do
1064 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1066 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1067 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1072 for f in $tm_p_file; do
1073 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1077 for f in $host_xm_file; do
1080 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1082 host_xm_file_list="${host_xm_file_list} $f" ;;
1084 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1085 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1090 for f in $build_xm_file; do
1093 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1094 auto-build.h | auto-host.h )
1095 build_xm_file_list="${build_xm_file_list} $f" ;;
1097 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1098 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1102 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1103 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1104 CROSS= AC_SUBST(CROSS)
1105 ALL=all.internal AC_SUBST(ALL)
1106 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1107 if test x$host != x$target
1109 CROSS="-DCROSS_COMPILE"
1111 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1112 case "$host","$target" in
1113 i?86-*-*,x86_64-*-* \
1114 | powerpc*-*-*,powerpc64*-*-*)
1115 CROSS="$CROSS -DNATIVE_CROSS" ;;
1119 # If this is a cross-compiler that does not
1120 # have its own set of headers then define
1123 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1124 # This prevents libgcc2 from containing any code which requires libc
1127 if [test x$host != x$target] && [test x$with_headers = x]; then
1128 inhibit_libc=-Dinhibit_libc
1130 if [test x$with_newlib = xyes]; then
1131 inhibit_libc=-Dinhibit_libc
1134 AC_SUBST(inhibit_libc)
1136 # When building gcc with a cross-compiler, we need to adjust things so
1137 # that the generator programs are still built with the native compiler.
1138 # Also, we cannot run fixincludes or fix-header.
1139 # Note that the terminology here is wrong; it should be BUILD_* throughout.
1142 # These are the normal (build=host) settings:
1143 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1144 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1145 HOST_CC='$(CC)' AC_SUBST(HOST_CC)
1146 HOST_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(HOST_CFLAGS)
1148 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1149 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1151 # And these apply if build != host.
1152 if test x$build != x$host
1155 BUILD_PREFIX_1=build-
1156 HOST_CC='$(CC_FOR_BUILD)'
1157 HOST_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1163 # Expand extra_headers to include complete path.
1164 # This substitutes for lots of t-* files.
1166 if test "x$extra_headers" = x
1169 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1170 for file in $extra_headers;
1172 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1176 if test x$use_collect2 = xno; then
1180 # Add a definition of USE_COLLECT2 if system wants one.
1181 if test x$use_collect2 != x
1183 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1184 xm_defines="${xm_defines} USE_COLLECT2"
1187 # If we have gas in the build tree, make a link to it.
1188 if test -f ../gas/Makefile; then
1189 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1192 # If we have nm and objdump in the build tree, make a link to them.
1193 if test -f ../binutils/Makefile; then
1194 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1195 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1198 # If we have ld in the build tree, make a link to it.
1199 if test -f ../ld/Makefile; then
1200 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1203 # Figure out what assembler we will be using.
1204 AC_MSG_CHECKING(what assembler to use)
1206 gcc_cv_gas_major_version=
1207 gcc_cv_gas_minor_version=
1208 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1209 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1210 if test -x "$DEFAULT_ASSEMBLER"; then
1211 gcc_cv_as="$DEFAULT_ASSEMBLER"
1212 elif test -x "$AS"; then
1214 elif test -x as$host_exeext; then
1215 # Build using assembler in the current directory.
1216 gcc_cv_as=./as$host_exeext
1217 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1218 # Single tree build which includes gas.
1219 for f in $gcc_cv_as_bfd_srcdir/configure $gcc_cv_as_gas_srcdir/configure $gcc_cv_as_gas_srcdir/configure.in $gcc_cv_as_gas_srcdir/Makefile.in
1222 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1224 if test x$gcc_cv_gas_version != x; then
1229 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1230 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1231 gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.[0-9]*\.\([0-9]*\)"`
1235 if test "x$gcc_cv_as" = x; then
1236 # Search the same directories that the installed compiler will
1237 # search. Else we may find the wrong assembler and lose. If we
1238 # do not find a suitable assembler binary, then try the user's
1241 # Also note we have to check MD_EXEC_PREFIX before checking the
1242 # user's path. Unfortunately, there is no good way to get at the
1243 # value of MD_EXEC_PREFIX here. So we do a brute force search
1244 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1245 # to be fixed as part of the make/configure rewrite too.
1247 if test "x$exec_prefix" = xNONE; then
1248 if test "x$prefix" = xNONE; then
1249 test_prefix=/usr/local
1254 test_prefix=$exec_prefix
1257 # If the loop below does not find an assembler, then use whatever
1258 # one we can find in the users's path.
1260 if test "x$program_prefix" != xNONE; then
1261 gcc_cv_as=${program_prefix}as$host_exeext
1263 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1266 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1267 $test_prefix/lib/gcc-lib/$target_alias \
1268 /usr/lib/gcc/$target_alias/$gcc_version \
1269 /usr/lib/gcc/$target_alias \
1270 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1271 $test_prefix/$target_alias/bin"
1273 if test x$host = x$target; then
1274 test_dirs="$test_dirs \
1279 /bsd43/usr/lib/cmplrs/cc \
1280 /usr/cross64/usr/bin \
1281 /usr/lib/cmplrs/cc \
1282 /sysv/usr/lib/cmplrs/cc \
1283 /svr4/usr/lib/cmplrs/cc \
1287 for dir in $test_dirs; do
1288 if test -x $dir/as$host_exeext; then
1289 gcc_cv_as=$dir/as$host_exeext
1294 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1295 AC_MSG_RESULT("newly built gas")
1297 AC_MSG_RESULT($gcc_cv_as)
1300 # Figure out what linker we will be using.
1301 AC_MSG_CHECKING(what linker to use)
1303 gcc_cv_gld_major_version=
1304 gcc_cv_gld_minor_version=
1305 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1306 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1307 if test -x "$DEFAULT_LINKER"; then
1308 gcc_cv_ld="$DEFAULT_LINKER"
1309 elif test -x "$LD"; then
1311 elif test -x ld$host_exeext; then
1312 # Build using linker in the current directory.
1313 gcc_cv_ld=./ld$host_exeext
1314 elif test -f $gcc_cv_ld_gld_srcdir/configure.in -a -f ../ld/Makefile; then
1315 # Single tree build which includes ld.
1316 for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in
1319 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1321 if test x$gcc_cv_gld_version != x; then
1326 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1327 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1331 if test "x$gcc_cv_ld" = x; then
1332 # Search the same directories that the installed compiler will
1333 # search. Else we may find the wrong linker and lose. If we
1334 # do not find a suitable linker binary, then try the user's
1337 # Also note we have to check MD_EXEC_PREFIX before checking the
1338 # user's path. Unfortunately, there is no good way to get at the
1339 # value of MD_EXEC_PREFIX here. So we do a brute force search
1340 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1341 # to be fixed as part of the make/configure rewrite too.
1343 if test "x$exec_prefix" = xNONE; then
1344 if test "x$prefix" = xNONE; then
1345 test_prefix=/usr/local
1350 test_prefix=$exec_prefix
1353 # If the loop below does not find an linker, then use whatever
1354 # one we can find in the users's path.
1356 if test "x$program_prefix" != xNONE; then
1357 gcc_cv_ld=${program_prefix}ld$host_exeext
1359 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1362 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1363 $test_prefix/lib/gcc-lib/$target_alias \
1364 /usr/lib/gcc/$target_alias/$gcc_version \
1365 /usr/lib/gcc/$target_alias \
1366 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1367 $test_prefix/$target_alias/bin"
1369 if test x$host = x$target; then
1370 test_dirs="$test_dirs \
1375 /bsd43/usr/lib/cmplrs/cc \
1376 /usr/cross64/usr/bin \
1377 /usr/lib/cmplrs/cc \
1378 /sysv/usr/lib/cmplrs/cc \
1379 /svr4/usr/lib/cmplrs/cc \
1383 for dir in $test_dirs; do
1384 if test -x $dir/ld$host_exeext; then
1385 gcc_cv_ld=$dir/ld$host_exeext
1390 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
1391 AC_MSG_RESULT("newly built ld")
1393 AC_MSG_RESULT($gcc_cv_ld)
1396 # Figure out what nm we will be using.
1397 AC_MSG_CHECKING(what nm to use)
1398 if test -x nm$host_exeext; then
1399 gcc_cv_nm=./nm$host_exeext
1400 elif test "x$program_prefix" != xNONE; then
1401 gcc_cv_nm=${program_prefix}nm$host_exeext
1403 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1405 AC_MSG_RESULT($gcc_cv_nm)
1407 # Figure out what objdump we will be using.
1408 AC_MSG_CHECKING(what objdump to use)
1409 if test -x objdump$host_exeext; then
1410 gcc_cv_objdump=./objdump$host_exeext
1411 elif test "x$program_prefix" != xNONE; then
1412 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1414 gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
1416 AC_MSG_RESULT($gcc_cv_objdump)
1418 # Figure out what assembler alignment features are present.
1419 AC_MSG_CHECKING(assembler alignment features)
1420 gcc_cv_as_alignment_features=none
1421 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1422 # Gas version 2.6 and later support for .balign and .p2align.
1423 # bytes to skip when using .p2align.
1424 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1425 gcc_cv_as_alignment_features=".balign and .p2align"
1426 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1428 # Gas version 2.8 and later support specifying the maximum
1429 # bytes to skip when using .p2align.
1430 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1431 gcc_cv_as_alignment_features=".p2align including maximum skip"
1432 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1434 elif test x$gcc_cv_as != x; then
1435 # Check if we have .balign and .p2align
1436 echo ".balign 4" > conftest.s
1437 echo ".p2align 2" >> conftest.s
1438 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1439 gcc_cv_as_alignment_features=".balign and .p2align"
1440 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1442 rm -f conftest.s conftest.o
1443 # Check if specifying the maximum bytes to skip when
1444 # using .p2align is supported.
1445 echo ".p2align 4,,7" > conftest.s
1446 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1447 gcc_cv_as_alignment_features=".p2align including maximum skip"
1448 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1450 rm -f conftest.s conftest.o
1452 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1454 AC_MSG_CHECKING(assembler subsection support)
1455 gcc_cv_as_subsections=no
1456 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1457 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1458 gcc_cv_as_subsections="working .subsection -1"
1460 elif test x$gcc_cv_as != x; then
1461 # Check if we have .subsection
1462 echo ".subsection 1" > conftest.s
1463 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1464 gcc_cv_as_subsections=".subsection"
1465 if test x$gcc_cv_nm != x; then
1466 cat > conftest.s <<EOF
1467 conftest_label1: .word 0
1469 conftest_label2: .word 0
1472 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1473 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1474 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1475 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1478 gcc_cv_as_subsections="working .subsection -1"
1483 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1485 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1486 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1487 [Define if your assembler supports .subsection and .subsection -1 starts
1488 emitting at the beginning of your section.])
1490 AC_MSG_RESULT($gcc_cv_as_subsections)
1492 AC_MSG_CHECKING(assembler weak support)
1494 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1495 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1496 gcc_cv_as_weak="yes"
1498 elif test x$gcc_cv_as != x; then
1499 # Check if we have .weak
1500 echo " .weak foobar" > conftest.s
1501 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1502 gcc_cv_as_weak="yes"
1504 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1506 if test x"$gcc_cv_as_weak" = xyes; then
1507 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1509 AC_MSG_RESULT($gcc_cv_as_weak)
1511 AC_MSG_CHECKING(assembler hidden support)
1513 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1514 if test "$gcc_cv_gas_major_version" -eq 2 \
1515 -a "$gcc_cv_gas_minor_version" -eq 12 \
1516 -a "$gcc_cv_gas_patch_version" -ge 1 \
1517 -o "$gcc_cv_gas_major_version" -eq 2 \
1518 -a "$gcc_cv_gas_minor_version" -gt 12 \
1519 -o "$gcc_cv_gas_major_version" -gt 2 \
1520 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1521 gcc_cv_as_hidden="yes"
1523 elif test x$gcc_cv_as != x; then
1524 # Check if we have .hidden
1525 echo " .hidden foobar" > conftest.s
1526 echo "foobar:" >> conftest.s
1527 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1528 gcc_cv_as_hidden="yes"
1530 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1532 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1533 # This is irritatingly difficult to feature test for. Look for
1534 # the date string after the version number.
1535 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1536 if echo "$ld_ver" | grep GNU > /dev/null; then
1538 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\([ ].*\|\)$,\1,p'`
1539 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1540 if test 0"$ld_date" -lt 20020404; then
1541 if test -n "$ld_date"; then
1542 # If there was date string, but was earlier than 2002-04-04, fail
1543 gcc_cv_as_hidden="no"
1544 elif test -z "$ld_vers"; then
1545 # If there was no date string nor ld version number, something is wrong
1546 gcc_cv_as_hidden="no"
1548 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1549 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1550 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1551 test -z "$ld_vers_patch" && ld_vers_patch=0
1552 if test "$ld_vers_major" -lt 2; then
1553 gcc_cv_as_hidden="no"
1554 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1555 gcc_cv_as_hidden="no"
1556 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1557 -a "$ld_vers_patch" -eq 0; then
1558 gcc_cv_as_hidden="no"
1565 if test x"$gcc_cv_as_hidden" = xyes; then
1566 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1567 [Define if your assembler supports .hidden.])
1569 AC_MSG_RESULT($gcc_cv_as_hidden)
1570 libgcc_visibility=$gcc_cv_as_hidden
1571 AC_SUBST(libgcc_visibility)
1573 AC_MSG_CHECKING(assembler leb128 support)
1575 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1576 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 11 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1577 gcc_cv_as_leb128="yes"
1579 elif test x$gcc_cv_as != x; then
1580 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1581 cat > conftest.s <<EOF
1589 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1590 gcc_cv_as_leb128="yes"
1592 # GAS versions before 2.11 do not support uleb128,
1593 # despite appearing to.
1594 # ??? There exists an elf-specific test that will crash
1595 # the assembler. Perhaps it's better to figure out whether
1596 # arbitrary sections are supported and try the test.
1597 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1598 if echo "$as_ver" | grep GNU > /dev/null; then
1600 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1601 as_major=`echo $as_ver | sed 's/\..*//'`
1602 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1604 if test $as_major -eq 2 -a $as_minor -lt 11; then
1605 gcc_cv_as_leb128="no"
1609 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1611 if test x"$gcc_cv_as_leb128" = xyes; then
1612 AC_DEFINE(HAVE_AS_LEB128, 1,
1613 [Define if your assembler supports .uleb128.])
1615 AC_MSG_RESULT($gcc_cv_as_leb128)
1617 AC_MSG_CHECKING(assembler eh_frame optimization)
1618 gcc_cv_as_eh_frame=no
1619 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1620 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1621 gcc_cv_as_eh_frame="yes"
1623 elif test x$gcc_cv_as != x; then
1624 # Check if this is GAS.
1625 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1626 rm -f a.out 2> /dev/null
1627 if echo "$as_ver" | grep GNU > /dev/null; then
1628 # Versions up to and including 2.11.0 may mis-optimize
1629 # .eh_frame data. Try something.
1630 cat > conftest.s <<EOF
1637 .section .eh_frame,"aw",@progbits
1639 .4byte .LECIE1-.LSCIE1
1653 .4byte .LEFDE1-.LASFDE1
1655 .4byte .LASFDE1-__FRAME_BEGIN__
1664 cat > conftest.lit <<EOF
1665 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1666 0010 01000000 12000000 18000000 00000000 ................
1667 0020 08000000 04080000 0044 .........D
1669 cat > conftest.big <<EOF
1670 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1671 0010 00000001 00000012 00000018 00000000 ................
1672 0020 00000008 04000000 0844 .........D
1674 # If the assembler didn't choke, and we can objdump,
1675 # and we got the correct data, then succeed.
1676 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1677 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1678 | tail -3 > conftest.got \
1679 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1680 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1682 gcc_cv_as_eh_frame="yes"
1684 gcc_cv_as_eh_frame="bad"
1685 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1686 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1687 [Define if your assembler mis-optimizes .eh_frame data.])
1693 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1695 AC_MSG_CHECKING(assembler section merging support)
1696 gcc_cv_as_shf_merge=no
1697 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1698 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1699 gcc_cv_as_shf_merge=yes
1701 elif test x$gcc_cv_as != x; then
1702 # Check if we support SHF_MERGE sections
1703 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1704 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1705 gcc_cv_as_shf_merge=yes
1707 rm -f conftest.s conftest.o
1709 if test x"$gcc_cv_as_shf_merge" = xyes; then
1710 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1711 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1713 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1715 AC_MSG_CHECKING(assembler thread-local storage support)
1724 .section ".tdata","awT",@progbits
1727 ldq $27,__tls_get_addr($29) !literal!1
1728 lda $16,foo($29) !tlsgd!1
1729 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
1730 ldq $27,__tls_get_addr($29) !literal!2
1731 lda $16,foo($29) !tlsldm!2
1732 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
1733 ldq $1,foo($29) !gotdtprel
1734 ldah $2,foo($29) !dtprelhi
1735 lda $3,foo($2) !dtprello
1736 lda $4,foo($29) !dtprel
1737 ldq $1,foo($29) !gottprel
1738 ldah $2,foo($29) !tprelhi
1739 lda $3,foo($2) !tprello
1740 lda $4,foo($29) !tprel'
1747 .section ".tdata","awT",@progbits
1751 leal foo@TLSGD(,%ebx,1), %eax
1752 leal foo@TLSLDM(%ebx), %eax
1753 leal foo@DTPOFF(%eax), %edx
1754 movl foo@GOTTPOFF(%ebx), %eax
1755 subl foo@GOTTPOFF(%ebx), %eax
1756 movl $foo@TPOFF, %eax
1757 subl $foo@TPOFF, %eax
1758 leal foo@NTPOFF(%ecx), %eax'
1764 .section ".tdata","awT",@progbits
1767 addl r16 = @ltoff(@dtpmod(foo#)), gp
1768 addl r17 = @ltoff(@dtprel(foo#)), gp
1769 addl r18 = @ltoff(@tprel(foo#)), gp
1770 addl r19 = @dtprel(foo#), gp
1771 adds r21 = @dtprel(foo#), r13
1772 movl r23 = @dtprel(foo#)
1773 addl r20 = @tprel(foo#), gp
1774 adds r22 = @tprel(foo#), r13
1775 movl r24 = @tprel(foo#)'
1780 if test -z "$tls_first_major"; then
1782 elif test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1784 if test "$gcc_cv_gas_major_version" -eq "$tls_first_major" \
1785 -a "$gcc_cv_gas_minor_version" -ge "$tls_first_minor" \
1786 -o "$gcc_cv_gas_major_version" -gt "$tls_first_major"; then
1789 elif test x$gcc_cv_as != x; then
1790 echo "$conftest_s" > conftest.s
1791 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
1795 rm -f conftest.s conftest.o
1797 if test "$gcc_cv_as_tls" = yes; then
1798 AC_DEFINE(HAVE_AS_TLS, 1,
1799 [Define if your assembler supports thread-local storage.])
1801 AC_MSG_RESULT($gcc_cv_as_tls)
1804 # All TARGET_ABI_OSF targets.
1805 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
1806 AC_CACHE_CHECK([assembler supports explicit relocations],
1807 gcc_cv_as_explicit_relocs, [
1808 gcc_cv_as_explicit_relocs=unknown
1809 if test x$gcc_cv_gas_major_version != x \
1810 -a x$gcc_cv_gas_minor_version != x
1812 if test "$gcc_cv_gas_major_version" -eq 2 \
1813 -a "$gcc_cv_gas_minor_version" -ge 12 \
1814 -o "$gcc_cv_gas_major_version" -gt 2; then
1815 gcc_cv_as_explicit_relocs=yes
1817 elif test x$gcc_cv_as != x; then
1818 cat > conftest.s << 'EOF'
1821 extbl $3, $2, $3 !lituse_bytoff!1
1822 ldq $2, a($29) !literal!1
1823 ldq $4, b($29) !literal!2
1824 ldq_u $3, 0($2) !lituse_base!1
1825 ldq $27, f($29) !literal!5
1826 jsr $26, ($27), f !lituse_jsr!5
1827 ldah $29, 0($26) !gpdisp!3
1828 lda $0, c($29) !gprel
1829 ldah $1, d($29) !gprelhigh
1830 lda $1, d($1) !gprellow
1831 lda $29, 0($29) !gpdisp!3
1833 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1834 gcc_cv_as_explicit_relocs=yes
1836 gcc_cv_as_explicit_relocs=no
1838 rm -f conftest.s conftest.o
1841 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
1842 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
1843 [Define if your assembler supports explicit relocations.])
1847 AC_CACHE_CHECK([assembler .register pseudo-op support],
1848 gcc_cv_as_register_pseudo_op, [
1849 gcc_cv_as_register_pseudo_op=unknown
1850 if test x$gcc_cv_as != x; then
1851 # Check if we have .register
1852 echo ".register %g2, #scratch" > conftest.s
1853 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1854 gcc_cv_as_register_pseudo_op=yes
1856 gcc_cv_as_register_pseudo_op=no
1858 rm -f conftest.s conftest.o
1861 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1862 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1863 [Define if your assembler supports .register.])
1866 AC_CACHE_CHECK([assembler supports -relax],
1867 gcc_cv_as_relax_opt, [
1868 gcc_cv_as_relax_opt=unknown
1869 if test x$gcc_cv_as != x; then
1870 # Check if gas supports -relax
1871 echo ".text" > conftest.s
1872 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1873 gcc_cv_as_relax_opt=yes
1875 gcc_cv_as_relax_opt=no
1877 rm -f conftest.s conftest.o
1880 if test "x$gcc_cv_as_relax_opt" = xyes; then
1881 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1882 [Define if your assembler supports -relax option.])
1885 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
1886 gcc_cv_as_sparc_ua_pcrel, [
1887 gcc_cv_as_sparc_ua_pcrel=unknown
1888 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
1889 gcc_cv_as_sparc_ua_pcrel=no
1890 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
1891 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1892 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
1893 gcc_cv_as_sparc_ua_pcrel=yes
1895 rm -f conftest.s conftest.o conftest
1898 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1899 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
1900 [Define if your assembler and linker support unaligned PC relative relocs.])
1903 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
1904 gcc_cv_as_sparc_ua_pcrel_hidden, [
1905 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1906 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
1907 if test x$gcc_cv_objdump != x; then
1908 gcc_cv_as_sparc_ua_pcrel_hidden=no
1909 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
1910 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
1911 echo "foo: .skip 4" >> conftest.s
1912 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1913 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
1914 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
1915 | grep ' 31000000 07323334' > /dev/null 2>&1; then
1916 if $gcc_cv_objdump -R conftest 2> /dev/null \
1917 | grep 'DISP32' > /dev/null 2>&1; then
1920 gcc_cv_as_sparc_ua_pcrel_hidden=yes
1924 rm -f conftest.s conftest.o conftest
1926 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
1929 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
1930 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
1931 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
1934 if test "x$gcc_cv_as_flags64" != xno; then
1935 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1936 gcc_cv_as_offsetable_lo10, [
1937 gcc_cv_as_offsetable_lo10=unknown
1938 if test "x$gcc_cv_as" != x; then
1939 # Check if assembler has offsetable %lo()
1940 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1941 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1942 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1944 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1945 > /dev/null 2>&1; then
1946 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1947 gcc_cv_as_offsetable_lo10=no
1949 gcc_cv_as_offsetable_lo10=yes
1952 gcc_cv_as_offsetable_lo10=no
1954 rm -f conftest.s conftest.o conftest1.s conftest1.o
1957 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1958 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1959 [Define if your assembler supports offsetable %lo().])
1966 i[34567]86-*-* | x86_64-*-*)
1968 AC_MSG_CHECKING(assembler instructions)
1969 gcc_cv_as_instructions=
1970 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1971 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1972 gcc_cv_as_instructions="filds fists"
1974 elif test x$gcc_cv_as != x; then
1975 set "filds fists" "filds mem; fists mem"
1978 echo "$2" > conftest.s
1979 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1980 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1984 rm -f conftest.s conftest.o
1986 if test x"$gcc_cv_as_instructions" != x; then
1987 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1989 AC_MSG_RESULT($gcc_cv_as_instructions)
1991 AC_MSG_CHECKING(assembler GOTOFF in data directives)
1992 gcc_cv_as_gotoff_in_data=no
1993 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1995 if test "$gcc_cv_gas_major_version" -eq 2 \
1996 -a "$gcc_cv_gas_minor_version" -ge 11 \
1997 -o "$gcc_cv_gas_major_version" -gt 2; then
1998 gcc_cv_as_gotoff_in_data=yes
2000 elif test x$gcc_cv_as != x; then
2001 cat > conftest.s <<EOF
2008 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2009 gcc_cv_as_gotoff_in_data=yes
2012 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2013 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2014 [Define true if the assembler supports '.long foo@GOTOFF'.])
2015 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2019 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2020 gcc_cv_as_dwarf2_debug_line=no
2021 # ??? Not all targets support dwarf2 debug_line, even within a version
2022 # of gas. Moreover, we need to emit a valid instruction to trigger any
2023 # info to the output file. So, as supported targets are added to gas 2.11,
2024 # add some instruction here to (also) show we expect this might work.
2025 # ??? Once 2.11 is released, probably need to add first known working
2026 # version to the per-target configury.
2028 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-* | hppa*-*-*)
2035 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2037 if test "$gcc_cv_gas_major_version" -eq 2 \
2038 -a "$gcc_cv_gas_minor_version" -ge 11 \
2039 -o "$gcc_cv_gas_major_version" -gt 2 \
2040 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2041 && test x"$insn" != x ; then
2042 gcc_cv_as_dwarf2_debug_line="yes"
2044 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2045 echo ' .file 1 "conftest.s"' > conftest.s
2046 echo ' .loc 1 3 0' >> conftest.s
2047 echo " $insn" >> conftest.s
2048 # ??? This fails with non-gnu grep.
2049 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2050 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2051 # The .debug_line file table must be in the exact order that
2052 # we specified the files, since these indices are also used
2053 # by DW_AT_decl_file. Approximate this test by testing if
2054 # the assembler bitches if the same index is assigned twice.
2055 echo ' .file 1 "foo.s"' > conftest.s
2056 echo ' .file 1 "bar.s"' >> conftest.s
2057 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2059 gcc_cv_as_dwarf2_debug_line="no"
2061 gcc_cv_as_dwarf2_debug_line="yes"
2064 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2066 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2067 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2068 [Define if your assembler supports dwarf2 .file/.loc directives,
2069 and preserves file table indices exactly as given.])
2071 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2073 AC_MSG_CHECKING(assembler --gdwarf2 support)
2074 gcc_cv_as_gdwarf2_flag=no
2075 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2077 if test "$gcc_cv_gas_major_version" -eq 2 \
2078 -a "$gcc_cv_gas_minor_version" -ge 11 \
2079 -o "$gcc_cv_gas_major_version" -gt 2 \
2080 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2081 && test x"$insn" != x ; then
2082 gcc_cv_as_gdwarf2_debug_flag="yes"
2084 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2085 echo '' > conftest.s
2086 # ??? This fails with non-gnu grep.
2087 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2089 gcc_cv_as_gdwarf2_flag="yes"
2091 rm -f conftest.s conftest.o
2093 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2094 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2095 [Define if your assembler supports the --gdwarf2 option.])
2097 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2099 AC_MSG_CHECKING(assembler --gstabs support)
2100 gcc_cv_as_gstabs_flag=no
2101 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2103 if test "$gcc_cv_gas_major_version" -eq 2 \
2104 -a "$gcc_cv_gas_minor_version" -ge 11 \
2105 -o "$gcc_cv_gas_major_version" -gt 2 \
2106 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2107 && test x"$insn" != x ; then
2108 gcc_cv_as_gstabs_debug_flag="yes"
2110 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2111 echo '' > conftest.s
2112 # ??? This fails with non-gnu grep.
2113 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2114 gcc_cv_as_gstabs_flag="yes"
2116 rm -f conftest.s conftest.o
2118 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2119 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2120 [Define if your assembler supports the --gstabs option.])
2122 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2124 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2125 gcc_cv_ld_eh_frame_hdr=no
2126 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2127 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2128 gcc_cv_ld_eh_frame_hdr=yes
2130 elif test x$gcc_cv_ld != x; then
2131 # Check if linker supports --eh-frame-hdr option
2132 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2133 gcc_cv_ld_eh_frame_hdr=yes
2136 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2137 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2138 [Define if your linker supports --eh-frame-hdr option.])
2140 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2142 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
2143 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2146 # Figure out what language subdirectories are present.
2147 # Look if the user specified --enable-languages="..."; if not, use
2148 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2150 # NB: embedded tabs in this IF block -- do not untabify
2151 if test x"${enable_languages+set}" != xset; then
2152 if test x"${LANGUAGES+set}" = xset; then
2153 enable_languages="${LANGUAGES}"
2154 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2157 enable_languages=all
2160 if test x"${enable_languages}" = x ||
2161 test x"${enable_languages}" = xyes;
2163 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2166 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2168 # First scan to see if an enabled language requires some other language.
2169 # We assume that a given config-lang.in will list all the language
2170 # front ends it requires, even if some are required indirectly.
2171 for lang in ${srcdir}/*/config-lang.in ..
2176 # The odd quoting in the next line works around
2177 # an apparent bug in bash 1.12 on linux.
2179 ${srcdir}/[*]/config-lang.in)
2182 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2183 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2184 for other in $this_lang_requires
2186 case ,${enable_languages}, in
2192 enable_languages="$enable_languages,$other"
2202 for lang in ${srcdir}/*/config-lang.in ..
2206 # The odd quoting in the next line works around
2207 # an apparent bug in bash 1.12 on linux.
2209 ${srcdir}/[*]/config-lang.in) ;;
2211 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2212 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2213 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2214 if test "x$lang_alias" = x
2216 echo "$lang doesn't set \$language." 1>&2
2219 case ${build_by_default},${enable_languages}, in
2220 *,$lang_alias,*) add_this_lang=yes ;;
2221 no,*) add_this_lang=no ;;
2222 *,all,*) add_this_lang=yes ;;
2223 *) add_this_lang=no ;;
2225 if test x"${add_this_lang}" = xyes; then
2227 ${srcdir}/ada/config-lang.in)
2228 if test x$have_gnat = xyes ; then
2229 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2233 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2242 # Make gthr-default.h if we have a thread file.
2244 if test $thread_file != single; then
2245 rm -f gthr-default.h
2246 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2247 gthread_flags=-DHAVE_GTHR_DEFAULT
2249 AC_SUBST(gthread_flags)
2251 # Find out what GC implementation we want, or may, use.
2253 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2260 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2265 echo "Using $GGC for garbage collection."
2267 # Use the system's zlib library.
2269 zlibinc="-I\$(srcdir)/../zlib"
2270 AC_ARG_WITH(system-zlib,
2271 [ --with-system-zlib use installed libz],
2278 dnl Very limited version of automake's enable-maintainer-mode
2280 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2281 dnl maintainer-mode is disabled by default
2282 AC_ARG_ENABLE(maintainer-mode,
2283 [ --enable-maintainer-mode
2284 enable make rules and dependencies not useful
2285 (and sometimes confusing) to the casual installer],
2286 maintainer_mode=$enableval,
2289 AC_MSG_RESULT($maintainer_mode)
2291 if test "$maintainer_mode" = "yes"; then
2298 # With Setjmp/Longjmp based exception handling.
2299 AC_ARG_ENABLE(sjlj-exceptions,
2300 [ --enable-sjlj-exceptions
2301 arrange to use setjmp/longjmp exception handling],
2302 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
2303 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
2304 [Define 0/1 to force the choice for exception handling model.])])
2306 # Make empty files to contain the specs and options for each language.
2307 # Then add #include lines to for a compiler that has specs and/or options.
2312 for subdir in . $subdirs
2314 if test -f $srcdir/$subdir/lang-specs.h; then
2315 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2317 if test -f $srcdir/$subdir/lang-options.h; then
2318 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2320 if test -f $srcdir/$subdir/$subdir-tree.def; then
2321 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2325 # These (without "all_") are set in each config-lang.in.
2326 # `language' must be a single word so is spelled singularly.
2331 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2332 # List of language makefile fragments.
2334 # Files for gengtype
2335 all_gtfiles="$config_gtfiles"
2337 # Add the language fragments.
2338 # Languages are added via two mechanisms. Some information must be
2339 # recorded in makefile variables, these are defined in config-lang.in.
2340 # We accumulate them and plug them into the main Makefile.
2341 # The other mechanism is a set of hooks for each of the main targets
2342 # like `clean', `install', etc.
2344 language_fragments="Make-lang"
2345 language_hooks="Make-hooks"
2347 for s in .. $subdirs
2357 . ${srcdir}/$s/config-lang.in
2358 if test "x$language" = x
2360 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2363 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2364 if test -f ${srcdir}/$s/Makefile.in
2365 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2367 all_languages="$all_languages $language"
2368 if test "x$boot_language" = xyes
2370 all_boot_languages="$all_boot_languages $language"
2372 all_compilers="$all_compilers $compilers"
2373 all_stagestuff="$all_stagestuff $stagestuff"
2374 all_outputs="$all_outputs $outputs"
2375 all_gtfiles="$all_gtfiles $gtfiles"
2380 for language in .. $all_languages
2382 if test $language != ".."
2384 check_languages="$check_languages check-$language"
2388 # Since we can't use `::' targets, we link each language in
2389 # with a set of hooks, reached indirectly via lang.${target}.
2393 target_list="all.build all.cross start.encap rest.encap \
2394 info dvi generated-manpages \
2395 install-normal install-common install-info install-man \
2397 mostlyclean clean distclean extraclean maintainer-clean \
2398 stage1 stage2 stage3 stage4"
2399 for t in $target_list
2402 for lang in .. $all_languages
2404 if test $lang != ".."; then
2408 echo "lang.$t: $x" >> Make-hooks
2413 echo "dir ." > .gdbinit
2414 echo "dir ${srcdir}" >> .gdbinit
2415 if test x$gdb_needs_out_file_path = xyes
2417 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2419 if test "x$subdirs" != x; then
2422 echo "dir ${srcdir}/$s" >> .gdbinit
2425 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2427 # Define variables host_canonical and build_canonical
2428 # because some Cygnus local changes in the Makefile depend on them.
2429 build_canonical=${build}
2430 host_canonical=${host}
2432 if test "${host}" != "${target}" ; then
2433 target_subdir=${target_alias}/
2435 AC_SUBST(build_canonical)
2436 AC_SUBST(host_canonical)
2437 AC_SUBST(target_subdir)
2439 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2440 # absolute path for gcc_tooldir based on inserting the number of up-directory
2441 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2442 # $(libsubdir)/@(unlibsubdir) based path.
2443 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2444 # make and thus we'd get different behavior depending on where we built the
2446 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2447 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2449 changequote(<<, >>)dnl
2450 # An explanation of the sed strings:
2451 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2452 # -e 's|/$||' match a trailing forward slash and eliminates it
2453 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2454 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2456 # (*) Note this pattern overwrites the first character of the string
2457 # with a forward slash if one is not already present. This is not a
2458 # problem because the exact names of the sub-directories concerned is
2459 # unimportant, just the number of them matters.
2461 # The practical upshot of these patterns is like this:
2463 # prefix exec_prefix result
2464 # ------ ----------- ------
2466 # /foo/ /foo/bar ../
2467 # /foo /foo/bar/ ../
2468 # /foo/ /foo/bar/ ../
2469 # /foo /foo/bar/ugg ../../
2472 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2473 changequote([, ])dnl
2475 AC_SUBST(gcc_tooldir)
2478 # Find a directory in which to install a shared libgcc.
2480 AC_ARG_ENABLE(version-specific-runtime-libs,
2481 [ --enable-version-specific-runtime-libs
2482 specify that runtime libraries should be
2483 installed in a compiler-specific directory])
2485 AC_ARG_WITH(slibdir,
2486 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2487 slibdir="$with_slibdir",
2488 if test "${enable_version_specific_runtime_libs+set}" = set; then
2489 slibdir='$(libsubdir)'
2490 elif test "$host" != "$target"; then
2491 slibdir='$(build_tooldir)/lib'
2497 # Nothing to do for FLOAT_H, float_format already handled.
2498 objdir=`${PWDCMD-pwd}`
2501 # Process the language and host/target makefile fragments.
2502 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2504 # Substitute configuration variables
2506 AC_SUBST(all_boot_languages)
2507 AC_SUBST(all_compilers)
2508 AC_SUBST(all_gtfiles)
2509 AC_SUBST(all_lang_makefiles)
2510 AC_SUBST(all_languages)
2511 AC_SUBST(all_stagestuff)
2512 AC_SUBST(build_exeext)
2513 AC_SUBST(build_install_headers_dir)
2514 AC_SUBST(build_xm_file_list)
2515 AC_SUBST(build_xm_file)
2516 AC_SUBST(build_xm_defines)
2517 AC_SUBST(check_languages)
2518 AC_SUBST(cc_set_by_configure)
2519 AC_SUBST(quoted_cc_set_by_configure)
2520 AC_SUBST(cpp_install_dir)
2521 AC_SUBST(dep_host_xmake_file)
2522 AC_SUBST(dep_tmake_file)
2523 AC_SUBST(extra_headers_list)
2524 AC_SUBST(extra_objs)
2525 AC_SUBST(extra_parts)
2526 AC_SUBST(extra_passes)
2527 AC_SUBST(extra_programs)
2528 AC_SUBST(float_h_file)
2529 AC_SUBST(gcc_config_arguments)
2530 AC_SUBST(gcc_gxx_include_dir)
2531 AC_SUBST(libstdcxx_incdir)
2532 AC_SUBST(gcc_version)
2533 AC_SUBST(gcc_version_full)
2534 AC_SUBST(gcc_version_trigger)
2535 AC_SUBST(host_exeext)
2536 AC_SUBST(host_extra_gcc_objs)
2537 AC_SUBST(host_xm_file_list)
2538 AC_SUBST(host_xm_file)
2539 AC_SUBST(host_xm_defines)
2541 AC_SUBST(lang_options_files)
2542 AC_SUBST(lang_specs_files)
2543 AC_SUBST(lang_tree_files)
2544 AC_SUBST(local_prefix)
2546 AC_SUBST(objc_boehm_gc)
2548 AC_SUBST(out_object_file)
2549 AC_SUBST(stage_prefix_set_by_configure)
2550 AC_SUBST(quoted_stage_prefix_set_by_configure)
2551 AC_SUBST(symbolic_link)
2552 AC_SUBST(thread_file)
2553 AC_SUBST(tm_file_list)
2555 AC_SUBST(tm_p_file_list)
2558 AC_SUBST(xm_defines)
2559 AC_SUBST(target_alias)
2560 AC_SUBST(c_target_objs)
2561 AC_SUBST(cxx_target_objs)
2562 AC_SUBST(target_cpu_default)
2564 AC_SUBST_FILE(target_overrides)
2565 AC_SUBST_FILE(host_overrides)
2566 AC_SUBST_FILE(language_fragments)
2567 AC_SUBST_FILE(language_hooks)
2569 # Echo that links are built
2570 if test x$host = x$target
2578 if test x$host != x$build
2580 str3=" on a $build system"
2583 if test "x$str2" != x || test "x$str3" != x
2588 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2590 if test "x$str2" != x || test "x$str3" != x
2592 echo " ${str2}${str3}." 1>&2
2595 # Truncate the target if necessary
2596 if test x$host_truncate_target != x; then
2597 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2600 # Configure the subdirectories
2601 # AC_CONFIG_SUBDIRS($subdirs)
2603 # Create the Makefile
2604 # and configure language subdirectories
2605 AC_OUTPUT($all_outputs,
2607 case x$CONFIG_HEADERS in
2608 xauto-host.h:config.in)
2611 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2612 # bootstrapping and the installation procedure can still use
2613 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2614 # FLAGS_TO_PASS has been modified to solve the problem there.
2615 # This is virtually a duplicate of what happens in configure.lang; we do
2616 # an extra check to make sure this only happens if ln -s can be used.
2617 if test "$symbolic_link" = "ln -s"; then
2618 for d in .. ${subdirs} fixinc ; do
2619 if test $d != ..; then
2620 STARTDIR=`${PWDCMD-pwd}`
2622 for t in stage1 stage2 stage3 stage4 include
2625 $symbolic_link ../$t $t 2>/dev/null
2631 # Avoid having to add intl to our include paths.
2632 if test -f intl/libintl.h; then
2633 echo creating libintl.h
2634 echo '#include "intl/libintl.h"' >libintl.h
2638 symbolic_link='$symbolic_link'