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$ac_gc_always_collect != x ; then
251 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
252 [Define if you want the garbage collector to operate in maximally
253 paranoid mode, validating the entire heap and collecting garbage at
254 every opportunity. This is extremely expensive.])
259 [ --disable-cpp don't provide a user-visible C preprocessor],
260 [], [enable_cpp=yes])
262 AC_ARG_WITH(cpp_install_dir,
263 [ --with-cpp-install-dir=DIR
264 install the user visible C preprocessor in DIR
265 (relative to PREFIX) as well as PREFIX/bin],
266 [if test x$withval = xyes; then
267 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
268 elif test x$withval != xno; then
269 cpp_install_dir=$withval
272 # Enable Multibyte Characters for C/C++
273 AC_ARG_ENABLE(c-mbchar,
274 [ --enable-c-mbchar enable multibyte characters for C and C++],
275 if test x$enable_c_mbchar != xno; then
276 AC_DEFINE(MULTIBYTE_CHARS, 1,
277 [Define if you want the C and C++ compilers to support multibyte
278 character sets for source code.])
282 # Pass with no value to take the default
283 # Pass with a value to specify a thread package
284 AC_ARG_ENABLE(threads,
285 [ --enable-threads enable thread usage for target GCC
286 --enable-threads=LIB use LIB thread package for target GCC],,
289 enable_threads_flag=$enable_threads
290 # Check if a valid thread package
291 case x${enable_threads_flag} in
294 target_thread_file='single'
298 target_thread_file=''
300 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
301 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
302 target_thread_file=$enable_threads_flag
305 echo "$enable_threads is an unknown thread package" 1>&2
310 AC_ARG_ENABLE(objc-gc,
311 [ --enable-objc-gc enable the use of Boehm's garbage collector with
312 the GNU Objective-C runtime],
313 if test x$enable_objc_gc = xno; then
321 [ --with-dwarf2 force the default debug format to be DWARF 2],
322 dwarf2="$with_dwarf2",
325 AC_ARG_ENABLE(shared,
326 [ --disable-shared don't provide a shared libgcc],
328 case $enable_shared in
332 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
333 for pkg in $enableval; do
334 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
341 ], [enable_shared=yes])
342 AC_SUBST(enable_shared)
344 # Determine the host, build, and target systems
347 # Set program_transform_name
350 # Find the native compiler
353 # autoconf is lame and doesn't give us any substitution variable for this.
354 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
355 NO_MINUS_C_MINUS_O=yes
357 OUTPUT_OPTION='-o $@'
359 AC_SUBST(NO_MINUS_C_MINUS_O)
360 AC_SUBST(OUTPUT_OPTION)
362 # See if GNAT has been installed
365 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
366 ac_cv_prog_cc_no_long_long,
367 [save_CFLAGS="$CFLAGS"
368 CFLAGS="-Wno-long-long"
369 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
370 ac_cv_prog_cc_no_long_long=no)
371 CFLAGS="$save_CFLAGS"])
373 if test x$have_gnat != xno ; then
374 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
375 ac_cv_prog_adac_no_long_long,
376 [cat >conftest.adb <<EOF
377 procedure conftest is begin null; end conftest;
379 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
380 ac_cv_prog_adac_no_long_long=yes
382 ac_cv_prog_adac_no_long_long=no
386 ac_cv_prog_adac_no_long_long=yes
390 if test $ac_cv_prog_cc_no_long_long = yes && \
391 test $ac_cv_prog_adac_no_long_long = yes ; then
392 strict1_warn="-pedantic -Wno-long-long"
394 AC_SUBST(strict1_warn)
404 # sizeof(char) is 1 by definition.
405 gcc_AC_COMPILE_CHECK_SIZEOF(short)
406 gcc_AC_COMPILE_CHECK_SIZEOF(int)
407 gcc_AC_COMPILE_CHECK_SIZEOF(long)
408 if test $ac_cv_c_long_long = yes; then
409 gcc_AC_COMPILE_CHECK_SIZEOF(long long)
411 if test $ac_cv_c___int64 = yes; then
412 gcc_AC_COMPILE_CHECK_SIZEOF(__int64)
417 # If the native compiler is GCC, we can enable warnings even in stage1.
418 # That's useful for people building cross-compilers, or just running a
421 if test "x$GCC" = "xyes"; then
422 warn_cflags='$(GCC_WARN_CFLAGS)'
424 AC_SUBST(warn_cflags)
426 # Stage specific cflags for build.
432 stage1_cflags="-Wa,-J"
438 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
439 # sources; use -no-cpp-precomp to get to GNU cpp.
440 # Apple's GCC has bugs in designated initializer handling, so disable
442 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
445 AC_SUBST(stage1_cflags)
449 AC_MSG_CHECKING([whether a default assembler was specified])
450 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
451 if test x"$gas_flag" = x"no"; then
452 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
454 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
460 AC_MSG_CHECKING([whether a default linker was specified])
461 if test x"${DEFAULT_LINKER+set}" = x"set"; then
462 if test x"$gnu_ld_flag" = x"no"; then
463 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
465 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
471 AC_MSG_CHECKING(for GNU C library)
472 AC_CACHE_VAL(gcc_cv_glibc,
474 [#include <features.h>],[
475 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
476 #error Not a GNU C library system
480 AC_MSG_RESULT($gcc_cv_glibc)
481 if test $gcc_cv_glibc = yes; then
482 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
485 # Find some useful tools
494 gcc_AC_HEADER_STDBOOL
497 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
498 fcntl.h unistd.h sys/file.h sys/time.h \
499 sys/resource.h sys/param.h sys/times.h sys/stat.h \
500 direct.h malloc.h langinfo.h)
502 # Check for thread headers.
503 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
504 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
506 # These tests can't be done till we know if we have limits.h.
508 gcc_AC_C_COMPILE_ENDIAN
509 gcc_AC_C_FLOAT_FORMAT
511 # See if we have the mktemp command.
512 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
514 # Do we have a single-tree copy of texinfo?
515 if test -f $srcdir/../texinfo/Makefile.in; then
516 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
517 gcc_cv_prog_makeinfo_modern=yes
518 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
520 # See if makeinfo has been installed and is modern enough
521 # that we can use it.
522 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
523 [GNU texinfo.* \([0-9][0-9.]*\)],
527 if test $gcc_cv_prog_makeinfo_modern = no; then
529 *** Makeinfo is missing or too old.
530 *** Info documentation will not be built.])
533 BUILD_INFO=info AC_SUBST(BUILD_INFO)
536 # Is pod2man recent enough to regenerate manpages?
537 AC_MSG_CHECKING([for recent Pod::Man])
538 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
540 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
547 dnl Don't use AC_PROG_LEX; we insist on flex.
548 dnl LEXLIB is not useful in gcc.
549 if test -f $srcdir/../flex/skel.c; then
550 FLEX='$(objdir)/../flex/flex'
552 AC_CHECK_PROG(FLEX, flex, flex, false)
556 # The -L switch is so bison can find its skeleton file.
557 if test -f $srcdir/../bison/bison.simple; then
558 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
560 AC_CHECK_PROG(BISON, bison, bison, false)
563 # These libraries may be used by collect2.
564 # We may need a special search path to get them linked.
565 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
567 for libs in '' -lld -lmld \
568 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
569 '-L/usr/lib/cmplrs/cc3.11 -lmld'
572 AC_TRY_LINK_FUNC(ldopen,
573 [gcc_cv_collect2_libs="$libs"; break])
576 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
577 case $gcc_cv_collect2_libs in
579 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
581 AC_SUBST(COLLECT2_LIBS)
583 # When building Ada code on Alpha, we need exc_resume which is usually in
584 # -lexc. So test for it.
587 AC_SEARCH_LIBS(exc_resume, exc)
590 AC_SUBST(GNAT_LIBEXC)
592 # See if the stage1 system preprocessor understands the ANSI C
593 # preprocessor stringification operator. (Used by symcat.h.)
596 # Use <inttypes.h> only if it exists,
597 # doesn't clash with <sys/types.h>, and declares intmax_t.
598 AC_MSG_CHECKING(for inttypes.h)
599 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
601 [#include <sys/types.h>
602 #include <inttypes.h>],
604 [gcc_cv_header_inttypes_h=yes],
605 gcc_cv_header_inttypes_h=no)])
606 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
607 if test $gcc_cv_header_inttypes_h = yes; then
608 AC_DEFINE(HAVE_INTTYPES_H, 1,
609 [Define if you have a working <inttypes.h> header file.])
612 dnl Disabled until we have a complete test for buggy enum bitfields.
613 dnl gcc_AC_C_ENUM_BF_UNSIGNED
615 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
616 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
617 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat)
619 AC_CHECK_TYPE(ssize_t, int)
621 # Try to determine the array type of the second argument of getgroups
622 # for the target system (int or gid_t).
624 if test "${target}" = "${build}"; then
625 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
628 # This condition may need some tweaking. It should include all
629 # targets where the array type of the second argument of getgroups
630 # is int and the type of gid_t is not equivalent to int.
631 *-*-sunos* | *-*-ultrix*)
632 TARGET_GETGROUPS_T=int
635 TARGET_GETGROUPS_T=gid_t
639 AC_SUBST(TARGET_GETGROUPS_T)
641 gcc_AC_FUNC_PRINTF_PTR
646 *** UWIN may not be used as a host platform because
647 *** linking with posix.dll is not allowed by the GNU GPL])
650 # Under VMS, vfork works very different than on Unix. The standard test
651 # won't work, and it isn't easily adaptable. It makes more sense to
653 ac_cv_func_vfork_works=yes
657 AC_FUNC_MMAP_ANYWHERE
662 # We will need to find libiberty.h and ansidecl.h
663 saved_CFLAGS="$CFLAGS"
664 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
665 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
666 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
667 fprintf_unlocked strstr errno \
668 malloc realloc calloc free basename getopt clock, , ,[
669 #include "ansidecl.h"
670 #include "system.h"])
672 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
673 #include "ansidecl.h"
675 #ifdef HAVE_SYS_RESOURCE_H
676 #include <sys/resource.h>
680 gcc_AC_CHECK_DECLS(times, , ,[
681 #include "ansidecl.h"
683 #ifdef HAVE_SYS_TIMES_H
684 #include <sys/times.h>
688 # More time-related stuff.
689 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
691 #include "ansidecl.h"
693 #ifdef HAVE_SYS_TIMES_H
694 #include <sys/times.h>
696 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
697 if test $ac_cv_struct_tms = yes; then
698 AC_DEFINE(HAVE_STRUCT_TMS, 1,
699 [Define if <sys/times.h> defines struct tms.])
702 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
703 # revisit after autoconf 2.50.
704 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
706 #include "ansidecl.h"
708 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
709 if test $gcc_cv_type_clock_t = yes; then
710 AC_DEFINE(HAVE_CLOCK_T, 1,
711 [Define if <time.h> defines clock_t.])
714 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
715 CFLAGS="$saved_CFLAGS"
717 # mkdir takes a single argument on some systems.
718 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
728 build_install_headers_dir=install-headers-tar
733 host_truncate_target=
736 # Decode the host machine, then the target machine.
737 # For the host machine, we save the xm_file variable as host_xm_file;
738 # then we decode the target machine and forget everything else
739 # that came from the host machine.
740 for machine in $build $host $target; do
741 . ${srcdir}/config.gcc
744 extra_objs="${host_extra_objs} ${extra_objs}"
746 # Default the target-machine variables that were not explicitly set.
747 if test x"$tm_file" = x
748 then tm_file=$cpu_type/$cpu_type.h; fi
750 if test x"$extra_headers" = x
751 then extra_headers=; fi
753 if test x$md_file = x
754 then md_file=$cpu_type/$cpu_type.md; fi
756 if test x$out_file = x
757 then out_file=$cpu_type/$cpu_type.c; fi
759 if test x"$tmake_file" = x
760 then tmake_file=$cpu_type/t-$cpu_type
763 if test x"$dwarf2" = xyes
764 then tm_file="$tm_file tm-dwarf2.h"
767 if test x$float_format = x
768 then float_format=i64
771 if test $float_format = none
772 then float_h_file=Makefile.in
773 else float_h_file=float-$float_format.h
776 # Handle cpp installation.
777 if test x$enable_cpp != xno
779 tmake_file="$tmake_file t-install-cpp"
782 # Say what files are being used for the output code and MD file.
783 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
784 echo "Using \`$srcdir/config/$md_file' as machine description file."
786 # If any of the xm_file variables contain nonexistent files, warn
787 # about them and drop them.
790 for x in $build_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 $host_xm_file; do
800 if test -f $srcdir/config/$x
802 else AC_MSG_WARN($srcdir/config/$x does not exist.)
808 for x in $xm_file; do
809 if test -f $srcdir/config/$x
811 else AC_MSG_WARN($srcdir/config/$x does not exist.)
817 for f in $tm_file; do
820 if test $count = ax; then
821 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
823 echo "Using the following target machine macro files:"
824 for f in $tm_file; do
825 echo " $srcdir/config/$f"
830 for f in $host_xm_file; do
833 if test $count = a; then
835 elif test $count = ax; then
836 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
838 echo "Using the following host machine macro files:"
839 for f in $host_xm_file; do
840 echo " $srcdir/config/$f"
844 if test "$host_xm_file" != "$build_xm_file"; then
846 for f in $build_xm_file; do
849 if test $count = a; then
851 elif test $count = ax; then
852 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
854 echo "Using the following build machine macro files:"
855 for f in $build_xm_file; do
856 echo " $srcdir/config/$f"
861 if test x$thread_file = x; then
862 if test x$target_thread_file != x; then
863 thread_file=$target_thread_file
869 # auto-host.h is the file containing items generated by autoconf and is
870 # the first file included by config.h.
871 # If host=build, it is correct to have hconfig include auto-host.h
872 # as well. If host!=build, we are in error and need to do more
873 # work to find out the build config parameters.
874 if test x$host = x$build
876 build_auto=auto-host.h
879 # We create a subdir, then run autoconf in the subdir.
880 # To prevent recursion we set host and build for the new
881 # invocation of configure to the build for this invocation
888 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
889 *) realsrcdir=../${srcdir};;
891 saved_CFLAGS="${CFLAGS}"
892 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
893 ${realsrcdir}/configure \
894 --target=$target_alias --host=$build_alias --build=$build_alias
895 CFLAGS="${saved_CFLAGS}"
897 # We just finished tests for the build machine, so rename
898 # the file auto-build.h in the gcc directory.
899 mv auto-host.h ../auto-build.h
902 build_auto=auto-build.h
907 tm_file="${tm_file} defaults.h"
908 host_xm_file="auto-host.h ansidecl.h ${host_xm_file} ${tm_file}"
909 build_xm_file="${build_auto} ansidecl.h ${build_xm_file} ${tm_file}"
910 xm_file="ansidecl.h ${xm_file} ${tm_file}"
912 # Truncate the target if necessary
913 if test x$host_truncate_target != x; then
914 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
917 # Get the version trigger filename from the toplevel
918 if test "${with_gcc_version_trigger+set}" = set; then
919 gcc_version_trigger=$with_gcc_version_trigger
921 gcc_version_trigger=${srcdir}/version.c
924 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
925 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
927 # Compile in configure arguments.
928 if test -f configargs.h ; then
929 # Being re-configured.
930 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
931 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
933 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
935 cat > configargs.h <<EOF
936 /* Generated automatically. */
937 static const char configuration_arguments[] = "$gcc_config_arguments";
938 static const char thread_model[] = "$thread_file";
942 # Internationalization
944 VERSION="$gcc_version"
948 # Enable NLS support by default
950 [ --enable-nls use Native Language Support (default)],
953 # if cross compiling, disable NLS support.
954 # It's not worth the trouble, at least for now.
956 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
957 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
963 # Windows32 Registry support for specifying GCC installation paths.
964 AC_ARG_ENABLE(win32-registry,
965 [ --disable-win32-registry
966 disable lookup of installation paths in the
967 Registry on Windows hosts
968 --enable-win32-registry enable registry lookup (default)
969 --enable-win32-registry=KEY
970 use KEY instead of GCC version as the last portion
971 of the registry key],,)
973 win32 | pe | cygwin* | mingw32* | uwin*)
974 AC_MSG_CHECKING(whether windows registry support is requested)
975 if test "x$enable_win32_registry" != xno; then
976 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
977 [Define to 1 if installation paths should be looked up in Windows32
978 Registry. Ignored on non windows32 hosts.])
980 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
985 # Check if user specified a different registry key.
986 case "x${enable_win32_registry}" in
989 gcc_cv_win32_registry_key="$VERSION"
992 # no registry lookup.
993 gcc_cv_win32_registry_key=''
996 # user-specified key.
997 gcc_cv_win32_registry_key="$enable_win32_registry"
1001 if test "x$enable_win32_registry" != xno; then
1002 AC_MSG_CHECKING(registry key on windows hosts)
1003 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1004 [Define to be the last portion of registry key on windows hosts.])
1005 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1010 # Get an absolute path to the GCC top-level source directory
1016 # Conditionalize the makefile for this host machine.
1017 # Make-host contains the concatenation of all host makefile fragments
1018 # [there can be more than one]. This file is built by configure.frag.
1019 host_overrides=Make-host
1020 dep_host_xmake_file=
1021 for f in .. ${host_xmake_file}
1023 if test -f ${srcdir}/config/$f
1025 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1029 # Conditionalize the makefile for this target machine.
1030 # Make-target contains the concatenation of all host makefile fragments
1031 # [there can be more than one]. This file is built by configure.frag.
1032 target_overrides=Make-target
1034 for f in .. ${tmake_file}
1036 if test -f ${srcdir}/config/$f
1038 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1042 # If the host doesn't support symlinks, modify CC in
1043 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1044 # Otherwise, we can use "CC=$(CC)".
1046 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1048 cc_set_by_configure="\$(CC)"
1049 quoted_cc_set_by_configure="\$(CC)"
1050 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1051 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1054 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1056 symbolic_link="cp -p"
1060 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1061 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1062 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1063 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1067 out_object_file=`basename $out_file .c`.o
1070 for f in $tm_file; do
1073 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1075 tm_file_list="${tm_file_list} $f" ;;
1076 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1081 for f in $tm_p_file; do
1082 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1086 for f in $host_xm_file; do
1089 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1090 auto-host.h | defaults.h )
1091 host_xm_file_list="${host_xm_file_list} $f" ;;
1092 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1097 for f in $build_xm_file; do
1100 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1101 auto-build.h | auto-host.h | defaults.h )
1102 build_xm_file_list="${build_xm_file_list} $f" ;;
1103 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1107 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1108 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1109 CROSS= AC_SUBST(CROSS)
1110 ALL=all.internal AC_SUBST(ALL)
1111 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1112 if test x$host != x$target
1114 CROSS="-DCROSS_COMPILE"
1116 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1119 # If this is a cross-compiler that does not
1120 # have its own set of headers then define
1123 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1124 # This prevents libgcc2 from containing any code which requires libc
1127 if [test x$host != x$target] && [test x$with_headers = x]; then
1128 inhibit_libc=-Dinhibit_libc
1130 if [test x$with_newlib = xyes]; then
1131 inhibit_libc=-Dinhibit_libc
1134 AC_SUBST(inhibit_libc)
1136 # When building gcc with a cross-compiler, we need to adjust things so
1137 # that the generator programs are still built with the native compiler.
1138 # Also, we cannot run fixincludes or fix-header.
1139 # Note that the terminology here is wrong; it should be BUILD_* throughout.
1142 # These are the normal (build=host) settings:
1143 HOST_PREFIX= AC_SUBST(HOST_PREFIX)
1144 HOST_PREFIX_1=ignore- AC_SUBST(HOST_PREFIX_1)
1145 HOST_CC='$(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$host
1155 HOST_PREFIX_1=build-
1156 HOST_CC='$(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_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 gcc_cv_as_hidden="no"
1545 if test x"$gcc_cv_as_hidden" = xyes; then
1546 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1547 [Define if your assembler supports .hidden.])
1549 AC_MSG_RESULT($gcc_cv_as_hidden)
1550 libgcc_visibility=$gcc_cv_as_hidden
1551 AC_SUBST(libgcc_visibility)
1553 AC_MSG_CHECKING(assembler leb128 support)
1555 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1556 if test "$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
1557 gcc_cv_as_leb128="yes"
1559 elif test x$gcc_cv_as != x; then
1560 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1561 cat > conftest.s <<EOF
1569 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1570 gcc_cv_as_leb128="yes"
1572 # GAS versions before 2.11 do not support uleb128,
1573 # despite appearing to.
1574 # ??? There exists an elf-specific test that will crash
1575 # the assembler. Perhaps it's better to figure out whether
1576 # arbitrary sections are supported and try the test.
1577 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1578 if echo "$as_ver" | grep GNU > /dev/null; then
1580 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1581 as_major=`echo $as_ver | sed 's/\..*//'`
1582 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1584 if test $as_major -eq 2 -a $as_minor -lt 11; then
1585 gcc_cv_as_leb128="no"
1589 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1591 if test x"$gcc_cv_as_leb128" = xyes; then
1592 AC_DEFINE(HAVE_AS_LEB128, 1,
1593 [Define if your assembler supports .uleb128.])
1595 AC_MSG_RESULT($gcc_cv_as_leb128)
1597 AC_MSG_CHECKING(assembler eh_frame optimization)
1598 gcc_cv_as_eh_frame=no
1599 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1600 if test "$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
1601 gcc_cv_as_eh_frame="yes"
1603 elif test x$gcc_cv_as != x; then
1604 # Check if this is GAS.
1605 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1606 rm -f a.out 2> /dev/null
1607 if echo "$as_ver" | grep GNU > /dev/null; then
1608 # Versions up to and including 2.11.0 may mis-optimize
1609 # .eh_frame data. Try something.
1610 cat > conftest.s <<EOF
1617 .section .eh_frame,"aw",@progbits
1619 .4byte .LECIE1-.LSCIE1
1633 .4byte .LEFDE1-.LASFDE1
1635 .4byte .LASFDE1-__FRAME_BEGIN__
1644 cat > conftest.lit <<EOF
1645 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1646 0010 01000000 12000000 18000000 00000000 ................
1647 0020 08000000 04080000 0044 .........D
1649 cat > conftest.big <<EOF
1650 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1651 0010 00000001 00000012 00000018 00000000 ................
1652 0020 00000008 04000000 0844 .........D
1654 # If the assembler didn't choke, and we can objdump,
1655 # and we got the correct data, then succeed.
1656 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1657 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1658 | tail -3 > conftest.got \
1659 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1660 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1662 gcc_cv_as_eh_frame="yes"
1664 gcc_cv_as_eh_frame="bad"
1665 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1666 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1667 [Define if your assembler mis-optimizes .eh_frame data.])
1673 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1675 AC_MSG_CHECKING(assembler section merging support)
1676 gcc_cv_as_shf_merge=no
1677 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1678 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1679 gcc_cv_as_shf_merge=yes
1681 elif test x$gcc_cv_as != x; then
1682 # Check if we support SHF_MERGE sections
1683 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1684 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1685 gcc_cv_as_shf_merge=yes
1687 rm -f conftest.s conftest.o
1689 if test x"$gcc_cv_as_shf_merge" = xyes; then
1690 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1691 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1693 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1696 # All TARGET_ABI_OSF targets.
1697 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
1698 AC_CACHE_CHECK([assembler supports explicit relocations],
1699 gcc_cv_as_explicit_relocs, [
1700 gcc_cv_as_explicit_relocs=unknown
1701 if test x$gcc_cv_gas_major_version != x \
1702 -a x$gcc_cv_gas_minor_version != x
1704 if test "$gcc_cv_gas_major_version" -eq 2 \
1705 -a "$gcc_cv_gas_minor_version" -ge 12 \
1706 -o "$gcc_cv_gas_major_version" -gt 2; then
1707 gcc_cv_as_explicit_relocs=yes
1709 elif test x$gcc_cv_as != x; then
1710 cat > conftest.s << 'EOF'
1713 extbl $3, $2, $3 !lituse_bytoff!1
1714 ldq $2, a($29) !literal!1
1715 ldq $4, b($29) !literal!2
1716 ldq_u $3, 0($2) !lituse_base!1
1717 ldq $27, f($29) !literal!5
1718 jsr $26, ($27), f !lituse_jsr!5
1719 ldah $29, 0($26) !gpdisp!3
1720 lda $0, c($29) !gprel
1721 ldah $1, d($29) !gprelhigh
1722 lda $1, d($1) !gprellow
1723 lda $29, 0($29) !gpdisp!3
1725 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1726 gcc_cv_as_explicit_relocs=yes
1728 gcc_cv_as_explicit_relocs=no
1730 rm -f conftest.s conftest.o
1733 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
1734 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
1735 [Define if your assembler supports explicit relocations.])
1739 AC_CACHE_CHECK([assembler .register pseudo-op support],
1740 gcc_cv_as_register_pseudo_op, [
1741 gcc_cv_as_register_pseudo_op=unknown
1742 if test x$gcc_cv_as != x; then
1743 # Check if we have .register
1744 echo ".register %g2, #scratch" > conftest.s
1745 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1746 gcc_cv_as_register_pseudo_op=yes
1748 gcc_cv_as_register_pseudo_op=no
1750 rm -f conftest.s conftest.o
1753 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
1754 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
1755 [Define if your assembler supports .register.])
1758 AC_CACHE_CHECK([assembler supports -relax],
1759 gcc_cv_as_relax_opt, [
1760 gcc_cv_as_relax_opt=unknown
1761 if test x$gcc_cv_as != x; then
1762 # Check if gas supports -relax
1763 echo ".text" > conftest.s
1764 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
1765 gcc_cv_as_relax_opt=yes
1767 gcc_cv_as_relax_opt=no
1769 rm -f conftest.s conftest.o
1772 if test "x$gcc_cv_as_relax_opt" = xyes; then
1773 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
1774 [Define if your assembler supports -relax option.])
1777 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
1778 gcc_cv_as_sparc_ua_pcrel, [
1779 gcc_cv_as_sparc_ua_pcrel=unknown
1780 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
1781 gcc_cv_as_sparc_ua_pcrel=no
1782 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
1783 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1784 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
1785 gcc_cv_as_sparc_ua_pcrel=yes
1787 rm -f conftest.s conftest.o conftest
1790 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1791 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
1792 [Define if your assembler and linker support unaligned PC relative relocs.])
1795 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
1796 gcc_cv_as_sparc_ua_pcrel_hidden, [
1797 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
1798 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
1799 if test x$gcc_cv_objdump != x; then
1800 gcc_cv_as_sparc_ua_pcrel_hidden=no
1801 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
1802 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
1803 echo "foo: .skip 4" >> conftest.s
1804 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
1805 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
1806 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
1807 | grep ' 31000000 07323334' > /dev/null 2>&1; then
1808 if $gcc_cv_objdump -R conftest 2> /dev/null \
1809 | grep 'DISP32' > /dev/null 2>&1; then
1812 gcc_cv_as_sparc_ua_pcrel_hidden=yes
1816 rm -f conftest.s conftest.o conftest
1818 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
1821 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
1822 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
1823 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
1826 if test "x$gcc_cv_as_flags64" != xno; then
1827 AC_CACHE_CHECK([for assembler offsetable %lo() support],
1828 gcc_cv_as_offsetable_lo10, [
1829 gcc_cv_as_offsetable_lo10=unknown
1830 if test "x$gcc_cv_as" != x; then
1831 # Check if assembler has offsetable %lo()
1832 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
1833 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
1834 if $gcc_cv_as $gcc_cv_as_flags64 -o conftest.o conftest.s \
1836 $gcc_cv_as $gcc_cv_as_flags64 -o conftest1.o conftest1.s \
1837 > /dev/null 2>&1; then
1838 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
1839 gcc_cv_as_offsetable_lo10=no
1841 gcc_cv_as_offsetable_lo10=yes
1844 gcc_cv_as_offsetable_lo10=no
1846 rm -f conftest.s conftest.o conftest1.s conftest1.o
1849 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
1850 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
1851 [Define if your assembler supports offsetable %lo().])
1858 i[34567]86-*-* | x86_64-*-*)
1860 AC_MSG_CHECKING(assembler instructions)
1861 gcc_cv_as_instructions=
1862 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1863 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
1864 gcc_cv_as_instructions="filds fists"
1866 elif test x$gcc_cv_as != x; then
1867 set "filds fists" "filds mem; fists mem"
1870 echo "$2" > conftest.s
1871 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1872 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
1876 rm -f conftest.s conftest.o
1878 if test x"$gcc_cv_as_instructions" != x; then
1879 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
1881 AC_MSG_RESULT($gcc_cv_as_instructions)
1883 AC_MSG_CHECKING(assembler GOTOFF in data directives)
1884 gcc_cv_as_gotoff_in_data=no
1885 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1887 if test "$gcc_cv_gas_major_version" -eq 2 \
1888 -a "$gcc_cv_gas_minor_version" -ge 11 \
1889 -o "$gcc_cv_gas_major_version" -gt 2; then
1890 gcc_cv_as_gotoff_in_data=yes
1892 elif test x$gcc_cv_as != x; then
1893 cat > conftest.s <<EOF
1900 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1901 gcc_cv_as_gotoff_in_data=yes
1904 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
1905 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
1906 [Define true if the assembler supports '.long foo@GOTOFF'.])
1907 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
1911 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
1912 gcc_cv_as_dwarf2_debug_line=no
1913 # ??? Not all targets support dwarf2 debug_line, even within a version
1914 # of gas. Moreover, we need to emit a valid instruction to trigger any
1915 # info to the output file. So, as supported targets are added to gas 2.11,
1916 # add some instruction here to (also) show we expect this might work.
1917 # ??? Once 2.11 is released, probably need to add first known working
1918 # version to the per-target configury.
1920 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* | x86_64*-*-* | hppa*-*-*)
1927 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1929 if test "$gcc_cv_gas_major_version" -eq 2 \
1930 -a "$gcc_cv_gas_minor_version" -ge 11 \
1931 -o "$gcc_cv_gas_major_version" -gt 2 \
1932 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1933 && test x"$insn" != x ; then
1934 gcc_cv_as_dwarf2_debug_line="yes"
1936 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1937 echo ' .file 1 "conftest.s"' > conftest.s
1938 echo ' .loc 1 3 0' >> conftest.s
1939 echo " $insn" >> conftest.s
1940 # ??? This fails with non-gnu grep.
1941 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1942 && grep debug_line conftest.o > /dev/null 2>&1 ; then
1943 # The .debug_line file table must be in the exact order that
1944 # we specified the files, since these indices are also used
1945 # by DW_AT_decl_file. Approximate this test by testing if
1946 # the assembler bitches if the same index is assigned twice.
1947 echo ' .file 1 "foo.s"' > conftest.s
1948 echo ' .file 1 "bar.s"' >> conftest.s
1949 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
1951 gcc_cv_as_dwarf2_debug_line="no"
1953 gcc_cv_as_dwarf2_debug_line="yes"
1956 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1958 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
1959 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
1960 [Define if your assembler supports dwarf2 .file/.loc directives,
1961 and preserves file table indices exactly as given.])
1963 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
1965 AC_MSG_CHECKING(assembler --gdwarf2 support)
1966 gcc_cv_as_gdwarf2_flag=no
1967 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
1969 if test "$gcc_cv_gas_major_version" -eq 2 \
1970 -a "$gcc_cv_gas_minor_version" -ge 11 \
1971 -o "$gcc_cv_gas_major_version" -gt 2 \
1972 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1973 && test x"$insn" != x ; then
1974 gcc_cv_as_gdwarf2_debug_flag="yes"
1976 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
1977 echo '' > conftest.s
1978 # ??? This fails with non-gnu grep.
1979 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
1981 gcc_cv_as_gdwarf2_flag="yes"
1983 rm -f conftest.s conftest.o
1985 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
1986 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
1987 [Define if your assembler supports the --gdwarf2 option.])
1989 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
1991 AC_MSG_CHECKING(assembler --gstabs support)
1992 gcc_cv_as_gstabs_flag=no
1993 if test x$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 \
1998 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1999 && test x"$insn" != x ; then
2000 gcc_cv_as_gstabs_debug_flag="yes"
2002 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2003 echo '' > conftest.s
2004 # ??? This fails with non-gnu grep.
2005 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2006 gcc_cv_as_gstabs_flag="yes"
2008 rm -f conftest.s conftest.o
2010 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2011 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2012 [Define if your assembler supports the --gstabs option.])
2014 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2016 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2017 gcc_cv_ld_eh_frame_hdr=no
2018 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2019 if test "$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
2020 gcc_cv_ld_eh_frame_hdr=yes
2022 elif test x$gcc_cv_ld != x; then
2023 # Check if linker supports --eh-frame-hdr option
2024 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2025 gcc_cv_ld_eh_frame_hdr=yes
2028 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2029 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2030 [Define if your linker supports --eh-frame-hdr option.])
2032 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2034 if test "$prefix" != "/usr" && test "$prefix" != "/usr/local" ; then
2035 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2038 # Figure out what language subdirectories are present.
2039 # Look if the user specified --enable-languages="..."; if not, use
2040 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2042 # NB: embedded tabs in this IF block -- do not untabify
2043 if test x"${enable_languages+set}" != xset; then
2044 if test x"${LANGUAGES+set}" = xset; then
2045 enable_languages="${LANGUAGES}"
2046 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2049 enable_languages=all
2052 if test x"${enable_languages}" = x ||
2053 test x"${enable_languages}" = xyes;
2055 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2058 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2060 # First scan to see if an enabled language requires some other language.
2061 # We assume that a given config-lang.in will list all the language
2062 # front ends it requires, even if some are required indirectly.
2063 for lang in ${srcdir}/*/config-lang.in ..
2068 # The odd quoting in the next line works around
2069 # an apparent bug in bash 1.12 on linux.
2071 ${srcdir}/[*]/config-lang.in)
2074 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2075 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2076 for other in $this_lang_requires
2078 case ,${enable_languages}, in
2084 enable_languages="$enable_languages,$other"
2094 for lang in ${srcdir}/*/config-lang.in ..
2098 # The odd quoting in the next line works around
2099 # an apparent bug in bash 1.12 on linux.
2101 ${srcdir}/[*]/config-lang.in) ;;
2103 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2104 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2105 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2106 if test "x$lang_alias" = x
2108 echo "$lang doesn't set \$language." 1>&2
2111 case ${build_by_default},${enable_languages}, in
2112 *,$lang_alias,*) add_this_lang=yes ;;
2113 no,*) add_this_lang=no ;;
2114 *,all,*) add_this_lang=yes ;;
2115 *) add_this_lang=no ;;
2117 if test x"${add_this_lang}" = xyes; then
2119 ${srcdir}/ada/config-lang.in)
2120 if test x$have_gnat = xyes ; then
2121 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2125 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2134 # Make gthr-default.h if we have a thread file.
2136 if test $thread_file != single; then
2137 rm -f gthr-default.h
2138 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2139 gthread_flags=-DHAVE_GTHR_DEFAULT
2141 AC_SUBST(gthread_flags)
2143 # Find out what GC implementation we want, or may, use.
2145 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2152 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2157 echo "Using $GGC for garbage collection."
2159 # Use the system's zlib library.
2161 zlibinc="-I\$(srcdir)/../zlib"
2162 AC_ARG_WITH(system-zlib,
2163 [ --with-system-zlib use installed libz],
2170 dnl Very limited version of automake's enable-maintainer-mode
2172 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2173 dnl maintainer-mode is disabled by default
2174 AC_ARG_ENABLE(maintainer-mode,
2175 [ --enable-maintainer-mode
2176 enable make rules and dependencies not useful
2177 (and sometimes confusing) to the casual installer],
2178 maintainer_mode=$enableval,
2181 AC_MSG_RESULT($maintainer_mode)
2183 if test "$maintainer_mode" = "yes"; then
2190 # With Setjmp/Longjmp based exception handling.
2191 AC_ARG_ENABLE(sjlj-exceptions,
2192 [ --enable-sjlj-exceptions
2193 arrange to use setjmp/longjmp exception handling],
2194 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
2195 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
2196 [Define 0/1 to force the choice for exception handling model.])])
2198 # Make empty files to contain the specs and options for each language.
2199 # Then add #include lines to for a compiler that has specs and/or options.
2204 for subdir in . $subdirs
2206 if test -f $srcdir/$subdir/lang-specs.h; then
2207 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2209 if test -f $srcdir/$subdir/lang-options.h; then
2210 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2212 if test -f $srcdir/$subdir/$subdir-tree.def; then
2213 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2217 # These (without "all_") are set in each config-lang.in.
2218 # `language' must be a single word so is spelled singularly.
2223 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc'
2224 # List of language makefile fragments.
2227 # Add the language fragments.
2228 # Languages are added via two mechanisms. Some information must be
2229 # recorded in makefile variables, these are defined in config-lang.in.
2230 # We accumulate them and plug them into the main Makefile.
2231 # The other mechanism is a set of hooks for each of the main targets
2232 # like `clean', `install', etc.
2234 language_fragments="Make-lang"
2235 language_hooks="Make-hooks"
2237 for s in .. $subdirs
2246 . ${srcdir}/$s/config-lang.in
2247 if test "x$language" = x
2249 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2252 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2253 if test -f ${srcdir}/$s/Makefile.in
2254 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2256 all_languages="$all_languages $language"
2257 if test "x$boot_language" = xyes
2259 all_boot_languages="$all_boot_languages $language"
2261 all_compilers="$all_compilers $compilers"
2262 all_stagestuff="$all_stagestuff $stagestuff"
2263 all_outputs="$all_outputs $outputs"
2268 for language in .. $all_languages
2270 if test $language != ".."
2272 check_languages="$check_languages check-$language"
2276 # Since we can't use `::' targets, we link each language in
2277 # with a set of hooks, reached indirectly via lang.${target}.
2281 target_list="all.build all.cross start.encap rest.encap \
2282 info dvi generated-manpages \
2283 install-normal install-common install-info install-man \
2285 mostlyclean clean distclean extraclean maintainer-clean \
2286 stage1 stage2 stage3 stage4"
2287 for t in $target_list
2290 for lang in .. $all_languages
2292 if test $lang != ".."; then
2296 echo "lang.$t: $x" >> Make-hooks
2301 echo "dir ." > .gdbinit
2302 echo "dir ${srcdir}" >> .gdbinit
2303 if test x$gdb_needs_out_file_path = xyes
2305 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2307 if test "x$subdirs" != x; then
2310 echo "dir ${srcdir}/$s" >> .gdbinit
2313 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2315 # Define variables host_canonical and build_canonical
2316 # because some Cygnus local changes in the Makefile depend on them.
2317 build_canonical=${build}
2318 host_canonical=${host}
2320 if test "${host}" != "${target}" ; then
2321 target_subdir=${target_alias}/
2323 AC_SUBST(build_canonical)
2324 AC_SUBST(host_canonical)
2325 AC_SUBST(target_subdir)
2327 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2328 # absolute path for gcc_tooldir based on inserting the number of up-directory
2329 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2330 # $(libsubdir)/@(unlibsubdir) based path.
2331 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2332 # make and thus we'd get different behavior depending on where we built the
2334 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2335 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2337 changequote(<<, >>)dnl
2338 # An explanation of the sed strings:
2339 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2340 # -e 's|/$||' match a trailing forward slash and eliminates it
2341 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2342 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2344 # (*) Note this pattern overwrites the first character of the string
2345 # with a forward slash if one is not already present. This is not a
2346 # problem because the exact names of the sub-directories concerned is
2347 # unimportant, just the number of them matters.
2349 # The practical upshot of these patterns is like this:
2351 # prefix exec_prefix result
2352 # ------ ----------- ------
2354 # /foo/ /foo/bar ../
2355 # /foo /foo/bar/ ../
2356 # /foo/ /foo/bar/ ../
2357 # /foo /foo/bar/ugg ../../
2360 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2361 changequote([, ])dnl
2363 AC_SUBST(gcc_tooldir)
2366 # Find a directory in which to install a shared libgcc.
2368 AC_ARG_ENABLE(version-specific-runtime-libs,
2369 [ --enable-version-specific-runtime-libs
2370 specify that runtime libraries should be
2371 installed in a compiler-specific directory])
2373 AC_ARG_WITH(slibdir,
2374 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2375 slibdir="$with_slibdir",
2376 if test "${enable_version_specific_runtime_libs+set}" = set; then
2377 slibdir='$(libsubdir)'
2378 elif test "$host" != "$target"; then
2379 slibdir='$(build_tooldir)/lib'
2385 # Nothing to do for FLOAT_H, float_format already handled.
2389 # Process the language and host/target makefile fragments.
2390 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2392 # Substitute configuration variables
2394 AC_SUBST(all_boot_languages)
2395 AC_SUBST(all_compilers)
2396 AC_SUBST(all_lang_makefiles)
2397 AC_SUBST(all_languages)
2398 AC_SUBST(all_stagestuff)
2399 AC_SUBST(build_exeext)
2400 AC_SUBST(build_install_headers_dir)
2401 AC_SUBST(build_xm_file_list)
2402 AC_SUBST(build_xm_file)
2403 AC_SUBST(build_xm_defines)
2404 AC_SUBST(check_languages)
2405 AC_SUBST(cc_set_by_configure)
2406 AC_SUBST(quoted_cc_set_by_configure)
2407 AC_SUBST(cpp_install_dir)
2408 AC_SUBST(dep_host_xmake_file)
2409 AC_SUBST(dep_tmake_file)
2410 AC_SUBST(extra_headers_list)
2411 AC_SUBST(extra_objs)
2412 AC_SUBST(extra_parts)
2413 AC_SUBST(extra_passes)
2414 AC_SUBST(extra_programs)
2415 AC_SUBST(float_h_file)
2416 AC_SUBST(gcc_config_arguments)
2417 AC_SUBST(gcc_gxx_include_dir)
2418 AC_SUBST(libstdcxx_incdir)
2419 AC_SUBST(gcc_version)
2420 AC_SUBST(gcc_version_full)
2421 AC_SUBST(gcc_version_trigger)
2422 AC_SUBST(host_exeext)
2423 AC_SUBST(host_extra_gcc_objs)
2424 AC_SUBST(host_xm_file_list)
2425 AC_SUBST(host_xm_file)
2426 AC_SUBST(host_xm_defines)
2428 AC_SUBST(lang_options_files)
2429 AC_SUBST(lang_specs_files)
2430 AC_SUBST(lang_tree_files)
2431 AC_SUBST(local_prefix)
2433 AC_SUBST(objc_boehm_gc)
2435 AC_SUBST(out_object_file)
2436 AC_SUBST(stage_prefix_set_by_configure)
2437 AC_SUBST(quoted_stage_prefix_set_by_configure)
2438 AC_SUBST(symbolic_link)
2439 AC_SUBST(thread_file)
2440 AC_SUBST(tm_file_list)
2442 AC_SUBST(tm_p_file_list)
2445 AC_SUBST(xm_defines)
2446 AC_SUBST(target_alias)
2447 AC_SUBST(c_target_objs)
2448 AC_SUBST(cxx_target_objs)
2449 AC_SUBST(target_cpu_default)
2451 AC_SUBST_FILE(target_overrides)
2452 AC_SUBST_FILE(host_overrides)
2453 AC_SUBST_FILE(language_fragments)
2454 AC_SUBST_FILE(language_hooks)
2456 # Echo that links are built
2457 if test x$host = x$target
2465 if test x$host != x$build
2467 str3=" on a $build system"
2470 if test "x$str2" != x || test "x$str3" != x
2475 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2477 if test "x$str2" != x || test "x$str3" != x
2479 echo " ${str2}${str3}." 1>&2
2482 # Truncate the target if necessary
2483 if test x$host_truncate_target != x; then
2484 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2487 # Configure the subdirectories
2488 # AC_CONFIG_SUBDIRS($subdirs)
2490 # Create the Makefile
2491 # and configure language subdirectories
2492 AC_OUTPUT($all_outputs,
2494 case x$CONFIG_HEADERS in
2495 xauto-host.h:config.in)
2498 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2499 # bootstrapping and the installation procedure can still use
2500 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2501 # FLAGS_TO_PASS has been modified to solve the problem there.
2502 # This is virtually a duplicate of what happens in configure.lang; we do
2503 # an extra check to make sure this only happens if ln -s can be used.
2504 if test "$symbolic_link" = "ln -s"; then
2505 for d in .. ${subdirs} fixinc ; do
2506 if test $d != ..; then
2509 for t in stage1 stage2 stage3 stage4 include
2512 $symbolic_link ../$t $t 2>/dev/null
2518 # Avoid having to add intl to our include paths.
2519 if test -f intl/libintl.h; then
2520 echo creating libintl.h
2521 echo '#include "intl/libintl.h"' >libintl.h
2525 symbolic_link='$symbolic_link'