2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003
5 # Free Software Foundation, Inc.
7 #This file is part of GCC.
9 #GCC is free software; you can redistribute it and/or modify it under
10 #the terms of the GNU General Public License as published by the Free
11 #Software Foundation; either version 2, or (at your option) any later
14 #GCC is distributed in the hope that it will be useful, but WITHOUT
15 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 #You should have received a copy of the GNU General Public License
20 #along with GCC; see the file COPYING. If not, write to the Free
21 #Software Foundation, 59 Temple Place - Suite 330, Boston, MA
24 # Initialization and defaults
27 AC_CONFIG_HEADER(auto-host.h:config.in)
34 # Check for bogus environment variables.
35 # Test if LIBRARY_PATH contains the notation for the current directory
36 # since this would lead to problems installing/building glibc.
37 # LIBRARY_PATH contains the current directory if one of the following
39 # - one of the terminals (":" and ";") is the first or last sign
40 # - two terminals occur directly after each other
41 # - the path contains an element with a dot in it
42 AC_MSG_CHECKING(LIBRARY_PATH variable)
44 case ${LIBRARY_PATH} in
45 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
46 library_path_setting="contains current directory"
49 library_path_setting="ok"
53 AC_MSG_RESULT($library_path_setting)
54 if test "$library_path_setting" != "ok"; then
56 *** LIBRARY_PATH shouldn't contain the current directory when
57 *** building gcc. Please change the environment variable
58 *** and run configure again.])
61 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
62 # since this would lead to problems installing/building glibc.
63 # GCC_EXEC_PREFIX contains the current directory if one of the following
65 # - one of the terminals (":" and ";") is the first or last sign
66 # - two terminals occur directly after each other
67 # - the path contains an element with a dot in it
68 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
70 case ${GCC_EXEC_PREFIX} in
71 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
72 gcc_exec_prefix_setting="contains current directory"
75 gcc_exec_prefix_setting="ok"
79 AC_MSG_RESULT($gcc_exec_prefix_setting)
80 if test "$gcc_exec_prefix_setting" != "ok"; then
82 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
83 *** building gcc. Please change the environment variable
84 *** and run configure again.])
87 # Check for additional parameters
91 [ --with-gnu-ld arrange to work with GNU ld.],
92 gnu_ld_flag="$with_gnu_ld",
97 [ --with-ld arrange to use the specified ld (full pathname)],
98 DEFAULT_LINKER="$with_ld")
99 if test x"${DEFAULT_LINKER+set}" = x"set"; then
100 if test ! -x "$DEFAULT_LINKER"; then
101 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
102 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
105 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
106 [Define to enable the use of a default linker.])
111 [ --with-gnu-as arrange to work with GNU as],
112 gas_flag="$with_gnu_as",
116 [ --with-as arrange to use the specified as (full pathname)],
117 DEFAULT_ASSEMBLER="$with_as")
118 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
119 if test ! -x "$DEFAULT_ASSEMBLER"; then
120 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
121 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
124 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
125 [Define to enable the use of a default assembler.])
130 [ --with-stabs arrange to use stabs instead of host debug format],
136 [ --with-elf arrange to use ELF instead of host debug format],
140 # Specify the local prefix
142 AC_ARG_WITH(local-prefix,
143 [ --with-local-prefix=DIR specifies directory to put local include],
144 [case "${withval}" in
145 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
147 *) local_prefix=$with_local_prefix ;;
150 # Default local prefix if it is empty
151 if test x$local_prefix = x; then
152 local_prefix=/usr/local
155 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
156 # passed in by the toplevel make and thus we'd get different behavior
157 # depending on where we built the sources.
159 # Specify the g++ header file directory
160 AC_ARG_WITH(gxx-include-dir,
161 [ --with-gxx-include-dir=DIR
162 specifies directory to put g++ header files],
163 [case "${withval}" in
164 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
166 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
169 if test x${gcc_gxx_include_dir} = x; then
170 if test x${enable_version_specific_runtime_libs} = xyes; then
171 gcc_gxx_include_dir='${libsubdir}/include/c++'
173 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
174 changequote(<<, >>)dnl
175 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
180 # Determine the host, build, and target systems
183 # Set program_transform_name
186 # Find the native compiler
189 # autoconf is lame and doesn't give us any substitution variable for this.
190 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
191 NO_MINUS_C_MINUS_O=yes
193 OUTPUT_OPTION='-o $@'
195 AC_SUBST(NO_MINUS_C_MINUS_O)
196 AC_SUBST(OUTPUT_OPTION)
198 # See if GNAT has been installed
201 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
202 ac_cv_prog_cc_no_long_long,
203 [save_CFLAGS="$CFLAGS"
204 CFLAGS="-Wno-long-long"
205 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
206 ac_cv_prog_cc_no_long_long=no)
207 CFLAGS="$save_CFLAGS"])
209 if test x$have_gnat != xno ; then
210 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
211 ac_cv_prog_adac_no_long_long,
212 [cat >conftest.adb <<EOF
213 procedure conftest is begin null; end conftest;
215 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
216 ac_cv_prog_adac_no_long_long=yes
218 ac_cv_prog_adac_no_long_long=no
222 ac_cv_prog_adac_no_long_long=yes
226 if test $ac_cv_prog_cc_no_long_long = yes && \
227 test $ac_cv_prog_adac_no_long_long = yes ; then
228 strict1_warn="-pedantic -Wno-long-long"
230 AC_SUBST(strict1_warn)
240 # sizeof(char) is 1 by definition.
241 AC_COMPILE_CHECK_SIZEOF(short)
242 AC_COMPILE_CHECK_SIZEOF(int)
243 AC_COMPILE_CHECK_SIZEOF(long)
244 if test $ac_cv_c_long_long = yes; then
245 AC_COMPILE_CHECK_SIZEOF(long long)
247 if test $ac_cv_c___int64 = yes; then
248 AC_COMPILE_CHECK_SIZEOF(__int64)
253 # If the native compiler is GCC, we can enable warnings even in stage1.
254 # That's useful for people building cross-compilers, or just running a
257 if test "x$GCC" = "xyes"; then
258 warn_cflags='$(GCC_WARN_CFLAGS)'
260 AC_SUBST(warn_cflags)
262 # Determine whether or not multilibs are enabled.
263 AC_ARG_ENABLE(multilib,
264 [ --enable-multilib enable library support for multiple ABIs],
265 [], [enable_multilib=yes])
266 AC_SUBST(enable_multilib)
268 # Enable -Werror in bootstrap stage2 and later.
269 # Change the default to "no" on release branches.
270 AC_ARG_ENABLE(werror,
271 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
273 if test x$enable_werror = xyes ; then
278 # Enable expensive internal checks
279 AC_ARG_ENABLE(checking,
280 [ --enable-checking[=LIST]
281 enable expensive run-time checks. With LIST,
282 enable only specific categories of checks.
283 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
284 default is misc,tree,gc,rtlflag],
290 ac_gc_always_collect=
291 case "${enableval}" in
292 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
293 ac_rtlflag_checking=1 ;;
295 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
296 set fnord $enableval; shift
301 misc) ac_checking=1 ;;
302 tree) ac_tree_checking=1 ;;
303 rtlflag) ac_rtlflag_checking=1 ;;
304 rtl) ac_rtl_checking=1 ;;
305 gc) ac_gc_checking=1 ;;
306 gcac) ac_gc_always_collect=1 ;;
307 valgrind) ac_checking_valgrind=1 ;;
308 *) AC_MSG_ERROR(unknown check category $check) ;;
314 # Enable some checks by default for development versions of GCC
315 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
317 if test x$ac_checking != x ; then
318 AC_DEFINE(ENABLE_CHECKING, 1,
319 [Define if you want more run-time sanity checks. This one gets a grab
320 bag of miscellaneous but relatively cheap checks.])
321 nocommon_flag=-fno-common
323 AC_SUBST(nocommon_flag)
324 if test x$ac_tree_checking != x ; then
325 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
326 [Define if you want all operations on trees (the basic data
327 structure of the front ends) to be checked for dynamic type safety
328 at runtime. This is moderately expensive.])
330 if test x$ac_rtl_checking != x ; then
331 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
332 [Define if you want all operations on RTL (the basic data structure
333 of the optimizer and back end) to be checked for dynamic type safety
334 at runtime. This is quite expensive.])
336 if test x$ac_rtlflag_checking != x ; then
337 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
338 [Define if you want RTL flag accesses to be checked against the RTL
339 codes that are supported for each access macro. This is relatively
342 if test x$ac_gc_checking != x ; then
343 AC_DEFINE(ENABLE_GC_CHECKING, 1,
344 [Define if you want the garbage collector to do object poisoning and
345 other memory allocation checks. This is quite expensive.])
347 if test x$ac_gc_always_collect != x ; then
348 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
349 [Define if you want the garbage collector to operate in maximally
350 paranoid mode, validating the entire heap and collecting garbage at
351 every opportunity. This is extremely expensive.])
353 valgrind_path_defines=
355 if test x$ac_checking_valgrind != x ; then
356 # It is certainly possible that there's valgrind but no valgrind.h.
357 # GCC relies on making annotations so we must have both.
358 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
359 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
360 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
361 if test "x$valgrind_path" = "x" || test $have_valgrind_h = no; then
362 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h])
364 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
365 valgrind_command="$valgrind_path -q"
366 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
367 [Define if you want to run subprograms and generated programs
368 through valgrind (a memory checker). This is extremely expensive.])
370 AC_SUBST(valgrind_path_defines)
371 AC_SUBST(valgrind_command)
373 # Enable code coverage collection
374 AC_ARG_ENABLE(coverage,
375 [ --enable-coverage[=LEVEL]
376 enable compiler\'s code coverage collection.
377 Use to measure compiler performance and locate
378 unused parts of the compiler. With LEVEL, specify
379 optimization. Values are opt, noopt,
381 [case "${enableval}" in
383 coverage_flags="-fprofile-arcs -ftest-coverage -O0 -DSELF_COVERAGE=1"
386 coverage_flags="-fprofile-arcs -ftest-coverage -O2 -DSELF_COVERAGE=2"
389 AC_MSG_ERROR(unknown coverage setting $enableval)
393 AC_SUBST(coverage_flags)
395 AC_ARG_WITH(cpp_install_dir,
396 [ --with-cpp-install-dir=DIR
397 install the user visible C preprocessor in DIR
398 (relative to PREFIX) as well as PREFIX/bin],
399 [if test x$withval = xyes; then
400 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
401 elif test x$withval != xno; then
402 cpp_install_dir=$withval
405 # Enable __cxa_atexit for C++.
406 AC_ARG_ENABLE(__cxa_atexit,
407 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
409 if test x$enable___cxa_atexit = xyes; then
410 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
411 [Define if you want to use __cxa_atexit, rather than atexit, to
412 register C++ destructors for local statics and global objects.
413 This is essential for fully standards-compliant handling of
414 destructors, but requires __cxa_atexit in libc.])
417 # Enable Multibyte Characters for C/C++
418 AC_ARG_ENABLE(c-mbchar,
419 [ --enable-c-mbchar enable multibyte characters for C and C++],
420 if test x$enable_c_mbchar != xno; then
421 AC_DEFINE(MULTIBYTE_CHARS, 1,
422 [Define if you want the C and C++ compilers to support multibyte
423 character sets for source code.])
427 # Pass with no value to take the default
428 # Pass with a value to specify a thread package
429 AC_ARG_ENABLE(threads,
430 [ --enable-threads enable thread usage for target GCC
431 --enable-threads=LIB use LIB thread package for target GCC],,
434 enable_threads_flag=$enable_threads
435 # Check if a valid thread package
436 case x${enable_threads_flag} in
439 target_thread_file='single'
443 target_thread_file=''
445 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
446 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
447 target_thread_file=$enable_threads_flag
450 echo "$enable_threads is an unknown thread package" 1>&2
455 AC_ARG_ENABLE(objc-gc,
456 [ --enable-objc-gc enable the use of Boehm's garbage collector with
457 the GNU Objective-C runtime],
458 if test x$enable_objc_gc = xno; then
466 [ --with-dwarf2 force the default debug format to be DWARF 2],
467 dwarf2="$with_dwarf2",
470 AC_ARG_ENABLE(shared,
471 [ --disable-shared don't provide a shared libgcc],
473 case $enable_shared in
477 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
478 for pkg in $enableval; do
479 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
486 ], [enable_shared=yes])
487 AC_SUBST(enable_shared)
490 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
492 case ${with_sysroot} in
493 yes) TARGET_SYSTEM_ROOT='${gcc_tooldir}/sys-root' ;;
494 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
497 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
498 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
501 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=0'
502 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
504 AC_SUBST(TARGET_SYSTEM_ROOT)
505 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
506 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
508 # Stage specific cflags for build.
514 stage1_cflags="-Wa,-J"
520 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
521 # sources; use -no-cpp-precomp to get to GNU cpp.
522 # Apple's GCC has bugs in designated initializer handling, so disable
524 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
527 AC_SUBST(stage1_cflags)
531 AC_MSG_CHECKING([whether a default assembler was specified])
532 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
533 if test x"$gas_flag" = x"no"; then
534 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
536 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
542 AC_MSG_CHECKING([whether a default linker was specified])
543 if test x"${DEFAULT_LINKER+set}" = x"set"; then
544 if test x"$gnu_ld_flag" = x"no"; then
545 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
547 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
553 AC_MSG_CHECKING(for GNU C library)
554 AC_CACHE_VAL(gcc_cv_glibc,
556 [#include <features.h>],[
557 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
558 #error Not a GNU C library system
562 AC_MSG_RESULT($gcc_cv_glibc)
563 if test $gcc_cv_glibc = yes; then
564 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
567 # Find some useful tools
576 gcc_AC_HEADER_STDBOOL
579 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
580 fcntl.h unistd.h sys/file.h sys/time.h \
581 sys/resource.h sys/param.h sys/times.h sys/stat.h \
582 direct.h malloc.h langinfo.h ldfcn.h)
584 # Check for thread headers.
585 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
586 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
588 # These tests can't be done till we know if we have limits.h.
591 gcc_AC_C_FLOAT_FORMAT
593 # See if we have the mktemp command.
594 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
596 # Do we have a single-tree copy of texinfo?
597 if test -f $srcdir/../texinfo/Makefile.in; then
598 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
599 gcc_cv_prog_makeinfo_modern=yes
600 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
602 # See if makeinfo has been installed and is modern enough
603 # that we can use it.
604 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
605 [GNU texinfo.* \([0-9][0-9.]*\)],
609 if test $gcc_cv_prog_makeinfo_modern = no; then
611 *** Makeinfo is missing or too old.
612 *** Info documentation will not be built.])
615 BUILD_INFO=info AC_SUBST(BUILD_INFO)
618 # Is pod2man recent enough to regenerate manpages?
619 AC_MSG_CHECKING([for recent Pod::Man])
620 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
622 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
629 dnl Don't use AC_PROG_LEX; we insist on flex.
630 dnl LEXLIB is not useful in gcc.
631 if test -f $srcdir/../flex/skel.c; then
632 FLEX='$(objdir)/../flex/flex'
634 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
638 # The -L switch is so bison can find its skeleton file.
639 if test -f $srcdir/../bison/bison.simple; then
640 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
642 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
645 # These libraries may be used by collect2.
646 # We may need a special search path to get them linked.
647 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
649 for libs in '' -lld -lmld \
650 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
651 '-L/usr/lib/cmplrs/cc3.11 -lmld'
654 AC_TRY_LINK_FUNC(ldopen,
655 [gcc_cv_collect2_libs="$libs"; break])
658 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
659 case $gcc_cv_collect2_libs in
661 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
663 AC_SUBST(COLLECT2_LIBS)
665 # When building Ada code on Alpha, we need exc_resume which is usually in
666 # -lexc. So test for it.
669 AC_SEARCH_LIBS(exc_resume, exc)
672 AC_SUBST(GNAT_LIBEXC)
674 # See if the stage1 system preprocessor understands the ANSI C
675 # preprocessor stringification operator. (Used by symcat.h.)
678 # Use <inttypes.h> only if it exists,
679 # doesn't clash with <sys/types.h>, and declares intmax_t.
680 AC_MSG_CHECKING(for inttypes.h)
681 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
683 [#include <sys/types.h>
684 #include <inttypes.h>],
686 [gcc_cv_header_inttypes_h=yes],
687 gcc_cv_header_inttypes_h=no)])
688 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
689 if test $gcc_cv_header_inttypes_h = yes; then
690 AC_DEFINE(HAVE_INTTYPES_H, 1,
691 [Define if you have a working <inttypes.h> header file.])
694 dnl Disabled until we have a complete test for buggy enum bitfields.
695 dnl gcc_AC_C_ENUM_BF_UNSIGNED
697 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
698 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
699 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
702 AC_CHECK_TYPE(ssize_t, int)
704 # Try to determine the array type of the second argument of getgroups
705 # for the target system (int or gid_t).
707 if test "${target}" = "${build}"; then
708 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
711 # This condition may need some tweaking. It should include all
712 # targets where the array type of the second argument of getgroups
713 # is int and the type of gid_t is not equivalent to int.
714 *-*-sunos* | *-*-ultrix*)
715 TARGET_GETGROUPS_T=int
718 TARGET_GETGROUPS_T=gid_t
722 AC_SUBST(TARGET_GETGROUPS_T)
724 gcc_AC_FUNC_PRINTF_PTR
729 *** UWIN may not be used as a host platform because
730 *** linking with posix.dll is not allowed by the GNU GPL])
733 # Under VMS, vfork works very different than on Unix. The standard test
734 # won't work, and it isn't easily adaptable. It makes more sense to
736 ac_cv_func_vfork_works=yes
740 AC_FUNC_MMAP_ANYWHERE
745 # We will need to find libiberty.h and ansidecl.h
746 saved_CFLAGS="$CFLAGS"
747 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
748 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
749 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
750 fprintf_unlocked strstr errno vasprintf \
751 malloc realloc calloc free basename getopt clock, , ,[
752 #include "ansidecl.h"
753 #include "system.h"])
755 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
756 #include "ansidecl.h"
758 #ifdef HAVE_SYS_RESOURCE_H
759 #include <sys/resource.h>
763 gcc_AC_CHECK_DECLS(ldgetname, , ,[
764 #include "ansidecl.h"
771 gcc_AC_CHECK_DECLS(times, , ,[
772 #include "ansidecl.h"
774 #ifdef HAVE_SYS_TIMES_H
775 #include <sys/times.h>
779 # More time-related stuff.
780 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
782 #include "ansidecl.h"
784 #ifdef HAVE_SYS_TIMES_H
785 #include <sys/times.h>
787 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
788 if test $ac_cv_struct_tms = yes; then
789 AC_DEFINE(HAVE_STRUCT_TMS, 1,
790 [Define if <sys/times.h> defines struct tms.])
793 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
794 # revisit after autoconf 2.50.
795 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
797 #include "ansidecl.h"
799 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
800 if test $gcc_cv_type_clock_t = yes; then
801 AC_DEFINE(HAVE_CLOCK_T, 1,
802 [Define if <time.h> defines clock_t.])
805 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
807 #include "ansidecl.h"
810 [if ((uchar *)0) return 0;
811 if (sizeof(uchar)) return 0;],
812 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
813 if test $ac_cv_type_uchar = yes; then
814 AC_DEFINE(HAVE_UCHAR, 1,
815 [Define if <sys/types.h> defines \`uchar'.])
818 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
819 CFLAGS="$saved_CFLAGS"
821 gcc_AC_INITFINI_ARRAY
823 # mkdir takes a single argument on some systems.
824 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
832 # With Setjmp/Longjmp based exception handling.
833 AC_ARG_ENABLE(sjlj-exceptions,
834 [ --enable-sjlj-exceptions
835 arrange to use setjmp/longjmp exception handling],
836 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
837 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
838 [Define 0/1 to force the choice for exception handling model.])])
840 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
841 # Use libunwind based exception handling.
842 AC_ARG_ENABLE(libunwind-exceptions,
843 [ --enable-libunwind-exceptions force use libunwind for exceptions],
844 use_libunwind_exceptions=$enableval,
845 use_libunwind_exceptions=$use_libunwind_default)
846 if test x"$use_libunwind_exceptions" = xyes; then
847 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
848 [Define if gcc should use -lunwind.])
854 build_install_headers_dir=install-headers-tar
859 host_truncate_target=
862 # Decode the host machine, then the target machine.
863 # For the host machine, we save the xm_file variable as host_xm_file;
864 # then we decode the target machine and forget everything else
865 # that came from the host machine.
866 for machine in $build $host $target; do
867 . ${srcdir}/config.gcc
870 extra_objs="${host_extra_objs} ${extra_objs}"
872 # Default the target-machine variables that were not explicitly set.
873 if test x"$tm_file" = x
874 then tm_file=$cpu_type/$cpu_type.h; fi
876 if test x"$extra_headers" = x
877 then extra_headers=; fi
879 if test x$md_file = x
880 then md_file=$cpu_type/$cpu_type.md; fi
882 if test x$out_file = x
883 then out_file=$cpu_type/$cpu_type.c; fi
885 if test x"$tmake_file" = x
886 then tmake_file=$cpu_type/t-$cpu_type
889 if test x"$dwarf2" = xyes
890 then tm_file="$tm_file tm-dwarf2.h"
893 # Say what files are being used for the output code and MD file.
894 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
895 echo "Using \`$srcdir/config/$md_file' as machine description file."
897 # If any of the xm_file variables contain nonexistent files, warn
898 # about them and drop them.
901 for x in $build_xm_file; do
902 if test -f $srcdir/config/$x
904 else AC_MSG_WARN($srcdir/config/$x does not exist.)
910 for x in $host_xm_file; do
911 if test -f $srcdir/config/$x
913 else AC_MSG_WARN($srcdir/config/$x does not exist.)
919 for x in $xm_file; do
920 if test -f $srcdir/config/$x
922 else AC_MSG_WARN($srcdir/config/$x does not exist.)
928 for f in $tm_file; do
931 if test $count = ax; then
932 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
934 echo "Using the following target machine macro files:"
935 for f in $tm_file; do
936 echo " $srcdir/config/$f"
940 if test x$need_64bit_hwint = xyes; then
941 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
942 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
946 for f in $host_xm_file; do
949 if test $count = a; then
951 elif test $count = ax; then
952 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
954 echo "Using the following host machine macro files:"
955 for f in $host_xm_file; do
956 echo " $srcdir/config/$f"
960 if test "$host_xm_file" != "$build_xm_file"; then
962 for f in $build_xm_file; do
965 if test $count = a; then
967 elif test $count = ax; then
968 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
970 echo "Using the following build machine macro files:"
971 for f in $build_xm_file; do
972 echo " $srcdir/config/$f"
977 if test x$thread_file = x; then
978 if test x$target_thread_file != x; then
979 thread_file=$target_thread_file
985 # Look for a file containing extra machine modes.
986 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
987 extra_modes_file='$(srcdir)'/config/${extra_modes}
988 AC_SUBST(extra_modes_file)
989 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
990 [Define to the name of a file containing a list of extra machine modes
991 for this architecture.])
992 AC_DEFINE(EXTRA_CC_MODES, 1,
993 [Define if the target architecture needs extra machine modes to represent
994 the results of comparisons.])
997 # auto-host.h is the file containing items generated by autoconf and is
998 # the first file included by config.h.
999 # If host=build, it is correct to have bconfig include auto-host.h
1000 # as well. If host!=build, we are in error and need to do more
1001 # work to find out the build config parameters.
1002 if test x$host = x$build
1004 build_auto=auto-host.h
1007 # We create a subdir, then run autoconf in the subdir.
1008 # To prevent recursion we set host and build for the new
1009 # invocation of configure to the build for this invocation
1016 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1017 *) realsrcdir=../${srcdir};;
1019 saved_CFLAGS="${CFLAGS}"
1020 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1021 ${realsrcdir}/configure \
1022 --target=$target_alias --host=$build_alias --build=$build_alias
1023 CFLAGS="${saved_CFLAGS}"
1025 # We just finished tests for the build machine, so rename
1026 # the file auto-build.h in the gcc directory.
1027 mv auto-host.h ../auto-build.h
1030 build_auto=auto-build.h
1031 FORBUILD=../build-$build_alias
1035 tm_file="${tm_file} defaults.h"
1036 tm_p_file="${tm_p_file} tm-preds.h"
1037 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1038 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1039 xm_file="ansidecl.h ${xm_file}"
1041 # Truncate the target if necessary
1042 if test x$host_truncate_target != x; then
1043 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1046 # Get the version trigger filename from the toplevel
1047 if test "${with_gcc_version_trigger+set}" = set; then
1048 gcc_version_trigger=$with_gcc_version_trigger
1050 gcc_version_trigger=${srcdir}/version.c
1053 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1054 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1056 # Compile in configure arguments.
1057 if test -f configargs.h ; then
1058 # Being re-configured.
1059 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1060 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1062 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1064 cat > configargs.h <<EOF
1065 /* Generated automatically. */
1066 static const char configuration_arguments[] = "$gcc_config_arguments";
1067 static const char thread_model[] = "$thread_file";
1071 # Internationalization
1073 VERSION="$gcc_version"
1077 # Enable NLS support by default
1079 [ --enable-nls use Native Language Support (default)],
1082 # if cross compiling, disable NLS support.
1083 # It's not worth the trouble, at least for now.
1085 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
1086 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
1092 # Windows32 Registry support for specifying GCC installation paths.
1093 AC_ARG_ENABLE(win32-registry,
1094 [ --disable-win32-registry
1095 disable lookup of installation paths in the
1096 Registry on Windows hosts
1097 --enable-win32-registry enable registry lookup (default)
1098 --enable-win32-registry=KEY
1099 use KEY instead of GCC version as the last portion
1100 of the registry key],,)
1102 win32 | pe | cygwin* | mingw32* | uwin*)
1103 AC_MSG_CHECKING(whether windows registry support is requested)
1104 if test "x$enable_win32_registry" != xno; then
1105 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1106 [Define to 1 if installation paths should be looked up in Windows32
1107 Registry. Ignored on non windows32 hosts.])
1109 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1114 # Check if user specified a different registry key.
1115 case "x${enable_win32_registry}" in
1118 gcc_cv_win32_registry_key="$VERSION"
1121 # no registry lookup.
1122 gcc_cv_win32_registry_key=''
1125 # user-specified key.
1126 gcc_cv_win32_registry_key="$enable_win32_registry"
1130 if test "x$enable_win32_registry" != xno; then
1131 AC_MSG_CHECKING(registry key on windows hosts)
1132 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1133 [Define to be the last portion of registry key on windows hosts.])
1134 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1139 # Get an absolute path to the GCC top-level source directory
1140 holddir=`${PWDCMD-pwd}`
1142 topdir=`${PWDCMD-pwd}`
1145 # Conditionalize the makefile for this host machine.
1146 # Make-host contains the concatenation of all host makefile fragments
1147 # [there can be more than one]. This file is built by configure.frag.
1148 host_overrides=Make-host
1149 dep_host_xmake_file=
1150 for f in .. ${host_xmake_file}
1152 if test -f ${srcdir}/config/$f
1154 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1158 # Conditionalize the makefile for this target machine.
1159 # Make-target contains the concatenation of all host makefile fragments
1160 # [there can be more than one]. This file is built by configure.frag.
1161 target_overrides=Make-target
1163 for f in .. ${tmake_file}
1165 if test -f ${srcdir}/config/$f
1167 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1171 # If the host doesn't support symlinks, modify CC in
1172 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1173 # Otherwise, we can use "CC=$(CC)".
1175 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1177 cc_set_by_configure="\$(CC)"
1178 quoted_cc_set_by_configure="\$(CC)"
1179 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1180 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1183 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1185 symbolic_link="cp -p"
1189 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1190 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1191 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1192 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1196 out_object_file=`basename $out_file .c`.o
1199 for f in $tm_file; do
1202 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1204 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1205 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1210 for f in $tm_p_file; do
1213 tm_p_file_list="${tm_p_file_list} $f" ;;
1214 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1219 for f in $host_xm_file; do
1222 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1224 host_xm_file_list="${host_xm_file_list} $f" ;;
1226 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1227 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1232 for f in $build_xm_file; do
1235 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1236 auto-build.h | auto-host.h )
1237 build_xm_file_list="${build_xm_file_list} $f" ;;
1239 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1240 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1244 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1245 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1246 CROSS= AC_SUBST(CROSS)
1247 ALL=all.internal AC_SUBST(ALL)
1248 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1249 if test x$host != x$target
1251 CROSS="-DCROSS_COMPILE"
1253 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1254 case "$host","$target" in
1255 i?86-*-*,x86_64-*-* \
1256 | powerpc*-*-*,powerpc64*-*-*)
1257 CROSS="$CROSS -DNATIVE_CROSS" ;;
1261 # If this is a cross-compiler that does not
1262 # have its own set of headers then define
1265 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1266 # This prevents libgcc2 from containing any code which requires libc
1269 if { test x$host != x$target && test "x$with_headers" = x &&
1270 test "x$with_sysroot" = x ; } || test x$with_newlib = xyes ; then
1271 inhibit_libc=-Dinhibit_libc
1273 AC_SUBST(inhibit_libc)
1275 # When building gcc with a cross-compiler, we need to adjust things so
1276 # that the generator programs are still built with the native compiler.
1277 # Also, we cannot run fixincludes or fix-header.
1279 # These are the normal (build=host) settings:
1280 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1281 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1282 BUILD_CC='$(CC)' AC_SUBST(BUILD_CC)
1283 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1285 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1286 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1288 # And these apply if build != host.
1289 if test x$build != x$host
1292 BUILD_PREFIX_1=build-
1293 BUILD_CC='$(CC_FOR_BUILD)'
1294 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1300 # Expand extra_headers to include complete path.
1301 # This substitutes for lots of t-* files.
1303 if test "x$extra_headers" = x
1306 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1307 for file in $extra_headers;
1309 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1313 if test x$use_collect2 = xno; then
1317 # Add a definition of USE_COLLECT2 if system wants one.
1318 if test x$use_collect2 != x
1320 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1321 xm_defines="${xm_defines} USE_COLLECT2"
1324 # If we have gas in the build tree, make a link to it.
1325 if test -f ../gas/Makefile; then
1326 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1329 # If we have nm and objdump in the build tree, make a link to them.
1330 if test -f ../binutils/Makefile; then
1331 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1332 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1335 # If we have ld in the build tree, make a link to it.
1336 if test -f ../ld/Makefile; then
1337 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1340 # Figure out what assembler we will be using.
1341 AC_MSG_CHECKING(what assembler to use)
1343 gcc_cv_gas_major_version=
1344 gcc_cv_gas_minor_version=
1345 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1346 gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1347 if test -x "$DEFAULT_ASSEMBLER"; then
1348 gcc_cv_as="$DEFAULT_ASSEMBLER"
1349 elif test -x "$AS"; then
1351 elif test -x as$host_exeext; then
1352 # Build using assembler in the current directory.
1353 gcc_cv_as=./as$host_exeext
1354 elif test -f $gcc_cv_as_gas_srcdir/configure.in -a -f ../gas/Makefile; then
1355 # Single tree build which includes gas.
1356 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
1359 gcc_cv_gas_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1361 if test x$gcc_cv_gas_version != x; then
1366 gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([0-9]*\)"`
1367 gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1368 gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[0-9]*\.[0-9]*\.\([0-9]*\)"`
1372 if test "x$gcc_cv_as" = x; then
1373 # Search the same directories that the installed compiler will
1374 # search. Else we may find the wrong assembler and lose. If we
1375 # do not find a suitable assembler binary, then try the user's
1378 # Also note we have to check MD_EXEC_PREFIX before checking the
1379 # user's path. Unfortunately, there is no good way to get at the
1380 # value of MD_EXEC_PREFIX here. So we do a brute force search
1381 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1382 # to be fixed as part of the make/configure rewrite too.
1384 if test "x$exec_prefix" = xNONE; then
1385 if test "x$prefix" = xNONE; then
1386 test_prefix=/usr/local
1391 test_prefix=$exec_prefix
1394 # If the loop below does not find an assembler, then use whatever
1395 # one we can find in the users's path.
1397 if test "x$program_prefix" != xNONE; then
1398 gcc_cv_as=${program_prefix}as$host_exeext
1400 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1403 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1404 $test_prefix/lib/gcc-lib/$target_alias \
1405 /usr/lib/gcc/$target_alias/$gcc_version \
1406 /usr/lib/gcc/$target_alias \
1407 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1408 $test_prefix/$target_alias/bin"
1410 if test x$host = x$target; then
1411 test_dirs="$test_dirs \
1416 /bsd43/usr/lib/cmplrs/cc \
1417 /usr/cross64/usr/bin \
1418 /usr/lib/cmplrs/cc \
1419 /sysv/usr/lib/cmplrs/cc \
1420 /svr4/usr/lib/cmplrs/cc \
1424 for dir in $test_dirs; do
1425 if test -x $dir/as$host_exeext; then
1426 gcc_cv_as=$dir/as$host_exeext
1431 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1432 AC_MSG_RESULT("newly built gas")
1434 AC_MSG_RESULT($gcc_cv_as)
1437 # Figure out what linker we will be using.
1438 AC_MSG_CHECKING(what linker to use)
1440 gcc_cv_gld_major_version=
1441 gcc_cv_gld_minor_version=
1442 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1443 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1444 if test -x "$DEFAULT_LINKER"; then
1445 gcc_cv_ld="$DEFAULT_LINKER"
1446 elif test -x "$LD"; then
1448 elif test -x ld$host_exeext; then
1449 # Build using linker in the current directory.
1450 gcc_cv_ld=./ld$host_exeext
1451 elif test -f $gcc_cv_ld_gld_srcdir/configure.in -a -f ../ld/Makefile; then
1452 # Single tree build which includes ld.
1453 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
1456 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1458 if test x$gcc_cv_gld_version != x; then
1463 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1464 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1468 if test "x$gcc_cv_ld" = x; then
1469 # Search the same directories that the installed compiler will
1470 # search. Else we may find the wrong linker and lose. If we
1471 # do not find a suitable linker binary, then try the user's
1474 # Also note we have to check MD_EXEC_PREFIX before checking the
1475 # user's path. Unfortunately, there is no good way to get at the
1476 # value of MD_EXEC_PREFIX here. So we do a brute force search
1477 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1478 # to be fixed as part of the make/configure rewrite too.
1480 if test "x$exec_prefix" = xNONE; then
1481 if test "x$prefix" = xNONE; then
1482 test_prefix=/usr/local
1487 test_prefix=$exec_prefix
1490 # If the loop below does not find an linker, then use whatever
1491 # one we can find in the users's path.
1493 if test "x$program_prefix" != xNONE; then
1494 gcc_cv_ld=${program_prefix}ld$host_exeext
1496 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1499 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1500 $test_prefix/lib/gcc-lib/$target_alias \
1501 /usr/lib/gcc/$target_alias/$gcc_version \
1502 /usr/lib/gcc/$target_alias \
1503 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1504 $test_prefix/$target_alias/bin"
1506 if test x$host = x$target; then
1507 test_dirs="$test_dirs \
1512 /bsd43/usr/lib/cmplrs/cc \
1513 /usr/cross64/usr/bin \
1514 /usr/lib/cmplrs/cc \
1515 /sysv/usr/lib/cmplrs/cc \
1516 /svr4/usr/lib/cmplrs/cc \
1520 for dir in $test_dirs; do
1521 if test -x $dir/ld$host_exeext; then
1522 gcc_cv_ld=$dir/ld$host_exeext
1527 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
1528 AC_MSG_RESULT("newly built ld")
1530 AC_MSG_RESULT($gcc_cv_ld)
1533 # Figure out what nm we will be using.
1534 AC_MSG_CHECKING(what nm to use)
1535 if test -x nm$host_exeext; then
1536 gcc_cv_nm=./nm$host_exeext
1537 elif test "x$program_prefix" != xNONE; then
1538 gcc_cv_nm=${program_prefix}nm$host_exeext
1540 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1542 AC_MSG_RESULT($gcc_cv_nm)
1544 # Figure out what objdump we will be using.
1545 AC_MSG_CHECKING(what objdump to use)
1546 if test -x objdump$host_exeext; then
1547 gcc_cv_objdump=./objdump$host_exeext
1548 elif test "x$program_prefix" != xNONE; then
1549 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1551 gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
1553 AC_MSG_RESULT($gcc_cv_objdump)
1555 # Figure out what assembler alignment features are present.
1556 AC_MSG_CHECKING(assembler alignment features)
1557 gcc_cv_as_alignment_features=none
1558 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1559 # Gas version 2.6 and later support for .balign and .p2align.
1560 # bytes to skip when using .p2align.
1561 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 6 -o "$gcc_cv_gas_major_version" -gt 2; then
1562 gcc_cv_as_alignment_features=".balign and .p2align"
1563 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1565 # Gas version 2.8 and later support specifying the maximum
1566 # bytes to skip when using .p2align.
1567 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 8 -o "$gcc_cv_gas_major_version" -gt 2; then
1568 gcc_cv_as_alignment_features=".p2align including maximum skip"
1569 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1571 elif test x$gcc_cv_as != x; then
1572 # Check if we have .balign and .p2align
1573 echo ".balign 4" > conftest.s
1574 echo ".p2align 2" >> conftest.s
1575 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1576 gcc_cv_as_alignment_features=".balign and .p2align"
1577 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1579 rm -f conftest.s conftest.o
1580 # Check if specifying the maximum bytes to skip when
1581 # using .p2align is supported.
1582 echo ".p2align 4,,7" > conftest.s
1583 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1584 gcc_cv_as_alignment_features=".p2align including maximum skip"
1585 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1587 rm -f conftest.s conftest.o
1589 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1591 AC_MSG_CHECKING(assembler subsection support)
1592 gcc_cv_as_subsections=no
1593 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1594 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1595 gcc_cv_as_subsections="working .subsection -1"
1597 elif test x$gcc_cv_as != x; then
1598 # Check if we have .subsection
1599 echo ".subsection 1" > conftest.s
1600 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1601 gcc_cv_as_subsections=".subsection"
1602 if test x$gcc_cv_nm != x; then
1603 cat > conftest.s <<EOF
1604 conftest_label1: .word 0
1606 conftest_label2: .word 0
1609 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1610 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1611 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1612 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1615 gcc_cv_as_subsections="working .subsection -1"
1620 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1622 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1623 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1624 [Define if your assembler supports .subsection and .subsection -1 starts
1625 emitting at the beginning of your section.])
1627 AC_MSG_RESULT($gcc_cv_as_subsections)
1629 AC_MSG_CHECKING(assembler weak support)
1631 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1632 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then
1633 gcc_cv_as_weak="yes"
1635 elif test x$gcc_cv_as != x; then
1636 # Check if we have .weak
1637 echo " .weak foobar" > conftest.s
1638 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1639 gcc_cv_as_weak="yes"
1641 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1643 if test x"$gcc_cv_as_weak" = xyes; then
1644 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1646 AC_MSG_RESULT($gcc_cv_as_weak)
1648 AC_MSG_CHECKING(assembler hidden support)
1650 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1651 if test "$gcc_cv_gas_major_version" -eq 2 \
1652 -a "$gcc_cv_gas_minor_version" -eq 12 \
1653 -a "$gcc_cv_gas_patch_version" -ge 1 \
1654 -o "$gcc_cv_gas_major_version" -eq 2 \
1655 -a "$gcc_cv_gas_minor_version" -gt 12 \
1656 -o "$gcc_cv_gas_major_version" -gt 2 \
1657 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1658 gcc_cv_as_hidden="yes"
1660 elif test x$gcc_cv_as != x; then
1661 # Check if we have .hidden
1662 echo " .hidden foobar" > conftest.s
1663 echo "foobar:" >> conftest.s
1664 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1665 gcc_cv_as_hidden="yes"
1667 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1669 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1670 # This is irritatingly difficult to feature test for. Look for
1671 # the date string after the version number.
1672 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1673 if echo "$ld_ver" | grep GNU > /dev/null; then
1675 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\([ ].*\|\)$,\1,p'`
1676 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1677 if test 0"$ld_date" -lt 20020404; then
1678 if test -n "$ld_date"; then
1679 # If there was date string, but was earlier than 2002-04-04, fail
1680 gcc_cv_as_hidden="no"
1681 elif test -z "$ld_vers"; then
1682 # If there was no date string nor ld version number, something is wrong
1683 gcc_cv_as_hidden="no"
1685 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1686 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1687 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1688 test -z "$ld_vers_patch" && ld_vers_patch=0
1689 if test "$ld_vers_major" -lt 2; then
1690 gcc_cv_as_hidden="no"
1691 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1692 gcc_cv_as_hidden="no"
1693 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1694 -a "$ld_vers_patch" -eq 0; then
1695 gcc_cv_as_hidden="no"
1702 if test x"$gcc_cv_as_hidden" = xyes; then
1703 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1704 [Define if your assembler supports .hidden.])
1706 AC_MSG_RESULT($gcc_cv_as_hidden)
1707 libgcc_visibility=$gcc_cv_as_hidden
1710 if test x"$gnu_ld_flag" = x"no"; then
1711 # Even if using gas with .hidden support, the resulting object files
1712 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1713 # N64 linkers, the problem is that the linker refuses to accept
1714 # -call_shared (passed by default to the linker) and -r (used to
1715 # link the object file generated without .hidden directives with
1716 # one that hides symbols), so we also lose.
1717 libgcc_visibility=no
1721 AC_SUBST(libgcc_visibility)
1723 AC_MSG_CHECKING(assembler leb128 support)
1725 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1726 if test "$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
1727 gcc_cv_as_leb128="yes"
1729 elif test x$gcc_cv_as != x; then
1730 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1731 cat > conftest.s <<EOF
1739 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1740 gcc_cv_as_leb128="yes"
1742 # GAS versions before 2.11 do not support uleb128,
1743 # despite appearing to.
1744 # ??? There exists an elf-specific test that will crash
1745 # the assembler. Perhaps it's better to figure out whether
1746 # arbitrary sections are supported and try the test.
1747 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1748 if echo "$as_ver" | grep GNU > /dev/null; then
1750 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1751 as_major=`echo $as_ver | sed 's/\..*//'`
1752 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1754 if test $as_major -eq 2 -a $as_minor -lt 11; then
1755 gcc_cv_as_leb128="no"
1759 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1761 if test x"$gcc_cv_as_leb128" = xyes; then
1762 AC_DEFINE(HAVE_AS_LEB128, 1,
1763 [Define if your assembler supports .uleb128.])
1765 AC_MSG_RESULT($gcc_cv_as_leb128)
1767 AC_MSG_CHECKING(assembler eh_frame optimization)
1768 gcc_cv_as_eh_frame=no
1769 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1770 if test "$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
1771 gcc_cv_as_eh_frame="yes"
1773 elif test x$gcc_cv_as != x; then
1774 # Check if this is GAS.
1775 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1776 rm -f a.out 2> /dev/null
1777 if echo "$as_ver" | grep GNU > /dev/null; then
1778 # Versions up to and including 2.11.0 may mis-optimize
1779 # .eh_frame data. Try something.
1780 cat > conftest.s <<EOF
1787 .section .eh_frame,"aw",@progbits
1789 .4byte .LECIE1-.LSCIE1
1803 .4byte .LEFDE1-.LASFDE1
1805 .4byte .LASFDE1-__FRAME_BEGIN__
1814 cat > conftest.lit <<EOF
1815 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1816 0010 01000000 12000000 18000000 00000000 ................
1817 0020 08000000 04080000 0044 .........D
1819 cat > conftest.big <<EOF
1820 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1821 0010 00000001 00000012 00000018 00000000 ................
1822 0020 00000008 04000000 0844 .........D
1824 # If the assembler didn't choke, and we can objdump,
1825 # and we got the correct data, then succeed.
1826 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1827 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1828 | tail -3 > conftest.got \
1829 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1830 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1832 gcc_cv_as_eh_frame="yes"
1834 gcc_cv_as_eh_frame="bad"
1835 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1836 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1837 [Define if your assembler mis-optimizes .eh_frame data.])
1843 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1845 AC_MSG_CHECKING(assembler section merging support)
1846 gcc_cv_as_shf_merge=no
1847 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
1848 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1849 gcc_cv_as_shf_merge=yes
1851 elif test x$gcc_cv_as != x; then
1852 # Check if we support SHF_MERGE sections
1853 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1854 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1855 gcc_cv_as_shf_merge=yes
1857 rm -f conftest.s conftest.o
1859 if test x"$gcc_cv_as_shf_merge" = xyes; then
1860 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1861 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1863 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1865 AC_MSG_CHECKING(assembler thread-local storage support)
1874 .section ".tdata","awT",@progbits
1877 ldq $27,__tls_get_addr($29) !literal!1
1878 lda $16,foo($29) !tlsgd!1
1879 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
1880 ldq $27,__tls_get_addr($29) !literal!2
1881 lda $16,foo($29) !tlsldm!2
1882 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
1883 ldq $1,foo($29) !gotdtprel
1884 ldah $2,foo($29) !dtprelhi
1885 lda $3,foo($2) !dtprello
1886 lda $4,foo($29) !dtprel
1887 ldq $1,foo($29) !gottprel
1888 ldah $2,foo($29) !tprelhi
1889 lda $3,foo($2) !tprello
1890 lda $4,foo($29) !tprel'
1897 .section ".tdata","awT",@progbits
1901 leal foo@TLSGD(,%ebx,1), %eax
1902 leal foo@TLSLDM(%ebx), %eax
1903 leal foo@DTPOFF(%eax), %edx
1904 movl foo@GOTTPOFF(%ebx), %eax
1905 subl foo@GOTTPOFF(%ebx), %eax
1906 addl foo@GOTNTPOFF(%ebx), %eax
1907 movl foo@INDNTPOFF, %eax
1908 movl $foo@TPOFF, %eax
1909 subl $foo@TPOFF, %eax
1910 leal foo@NTPOFF(%ecx), %eax'
1916 .section ".tdata","awT",@progbits
1920 leaq foo@TLSGD(%rip), %rdi
1921 leaq foo@TLSLD(%rip), %rdi
1922 leaq foo@DTPOFF(%rax), %rdx
1923 movq foo@GOTTPOFF(%rip), %rax
1924 movq $foo@TPOFF, %rax'
1930 .section ".tdata","awT",@progbits
1933 addl r16 = @ltoff(@dtpmod(foo#)), gp
1934 addl r17 = @ltoff(@dtprel(foo#)), gp
1935 addl r18 = @ltoff(@tprel(foo#)), gp
1936 addl r19 = @dtprel(foo#), gp
1937 adds r21 = @dtprel(foo#), r13
1938 movl r23 = @dtprel(foo#)
1939 addl r20 = @tprel(foo#), gp
1940 adds r22 = @tprel(foo#), r13
1941 movl r24 = @tprel(foo#)'
1946 if test -z "$tls_first_major"; then
1948 elif test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
1950 if test "$gcc_cv_gas_major_version" -eq "$tls_first_major" \
1951 -a "$gcc_cv_gas_minor_version" -ge "$tls_first_minor" \
1952 -o "$gcc_cv_gas_major_version" -gt "$tls_first_major"; then
1955 elif test x$gcc_cv_as != x; then
1956 echo "$conftest_s" > conftest.s
1957 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
1961 rm -f conftest.s conftest.o
1963 if test "$gcc_cv_as_tls" = yes; then
1964 AC_DEFINE(HAVE_AS_TLS, 1,
1965 [Define if your assembler supports thread-local storage.])
1967 AC_MSG_RESULT($gcc_cv_as_tls)
1970 # All TARGET_ABI_OSF targets.
1971 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
1972 AC_CACHE_CHECK([assembler supports explicit relocations],
1973 gcc_cv_as_explicit_relocs, [
1974 gcc_cv_as_explicit_relocs=unknown
1975 if test x$gcc_cv_gas_major_version != x \
1976 -a x$gcc_cv_gas_minor_version != x
1978 if test "$gcc_cv_gas_major_version" -eq 2 \
1979 -a "$gcc_cv_gas_minor_version" -ge 12 \
1980 -o "$gcc_cv_gas_major_version" -gt 2; then
1981 gcc_cv_as_explicit_relocs=yes
1983 elif test x$gcc_cv_as != x; then
1984 cat > conftest.s << 'EOF'
1987 extbl $3, $2, $3 !lituse_bytoff!1
1988 ldq $2, a($29) !literal!1
1989 ldq $4, b($29) !literal!2
1990 ldq_u $3, 0($2) !lituse_base!1
1991 ldq $27, f($29) !literal!5
1992 jsr $26, ($27), f !lituse_jsr!5
1993 ldah $29, 0($26) !gpdisp!3
1994 lda $0, c($29) !gprel
1995 ldah $1, d($29) !gprelhigh
1996 lda $1, d($1) !gprellow
1997 lda $29, 0($29) !gpdisp!3
1999 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2000 gcc_cv_as_explicit_relocs=yes
2002 gcc_cv_as_explicit_relocs=no
2004 rm -f conftest.s conftest.o
2007 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2008 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2009 [Define if your assembler supports explicit relocations.])
2013 AC_CACHE_CHECK([assembler .register pseudo-op support],
2014 gcc_cv_as_register_pseudo_op, [
2015 gcc_cv_as_register_pseudo_op=unknown
2016 if test x$gcc_cv_as != x; then
2017 # Check if we have .register
2018 echo ".register %g2, #scratch" > conftest.s
2019 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2020 gcc_cv_as_register_pseudo_op=yes
2022 gcc_cv_as_register_pseudo_op=no
2024 rm -f conftest.s conftest.o
2027 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2028 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2029 [Define if your assembler supports .register.])
2032 AC_CACHE_CHECK([assembler supports -relax],
2033 gcc_cv_as_relax_opt, [
2034 gcc_cv_as_relax_opt=unknown
2035 if test x$gcc_cv_as != x; then
2036 # Check if gas supports -relax
2037 echo ".text" > conftest.s
2038 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2039 gcc_cv_as_relax_opt=yes
2041 gcc_cv_as_relax_opt=no
2043 rm -f conftest.s conftest.o
2046 if test "x$gcc_cv_as_relax_opt" = xyes; then
2047 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2048 [Define if your assembler supports -relax option.])
2051 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2052 gcc_cv_as_sparc_ua_pcrel, [
2053 gcc_cv_as_sparc_ua_pcrel=unknown
2054 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2055 gcc_cv_as_sparc_ua_pcrel=no
2056 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2057 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2058 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2059 gcc_cv_as_sparc_ua_pcrel=yes
2061 rm -f conftest.s conftest.o conftest
2064 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2065 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2066 [Define if your assembler and linker support unaligned PC relative relocs.])
2069 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2070 gcc_cv_as_sparc_ua_pcrel_hidden, [
2071 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2072 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2073 if test x$gcc_cv_objdump != x; then
2074 gcc_cv_as_sparc_ua_pcrel_hidden=no
2075 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2076 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2077 echo "foo: .skip 4" >> conftest.s
2078 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2079 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2080 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2081 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2082 if $gcc_cv_objdump -R conftest 2> /dev/null \
2083 | grep 'DISP32' > /dev/null 2>&1; then
2086 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2090 rm -f conftest.s conftest.o conftest
2092 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2095 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2096 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2097 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2100 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2101 gcc_cv_as_offsetable_lo10, [
2102 gcc_cv_as_offsetable_lo10=unknown
2103 if test "x$gcc_cv_as" != x; then
2104 # Check if assembler has offsetable %lo()
2105 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2106 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2107 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2109 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2110 > /dev/null 2>&1; then
2111 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2112 gcc_cv_as_offsetable_lo10=no
2114 gcc_cv_as_offsetable_lo10=yes
2117 gcc_cv_as_offsetable_lo10=no
2119 rm -f conftest.s conftest.o conftest1.s conftest1.o
2122 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2123 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2124 [Define if your assembler supports offsetable %lo().])
2130 i[34567]86-*-* | x86_64-*-*)
2132 AC_MSG_CHECKING(assembler instructions)
2133 gcc_cv_as_instructions=
2134 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then
2135 if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2; then
2136 gcc_cv_as_instructions="filds fists"
2138 elif test x$gcc_cv_as != x; then
2139 set "filds fists" "filds mem; fists mem"
2142 echo "$2" > conftest.s
2143 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2144 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2148 rm -f conftest.s conftest.o
2150 if test x"$gcc_cv_as_instructions" != x; then
2151 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2153 AC_MSG_RESULT($gcc_cv_as_instructions)
2155 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2156 gcc_cv_as_gotoff_in_data=no
2157 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x
2159 if test "$gcc_cv_gas_major_version" -eq 2 \
2160 -a "$gcc_cv_gas_minor_version" -ge 11 \
2161 -o "$gcc_cv_gas_major_version" -gt 2; then
2162 gcc_cv_as_gotoff_in_data=yes
2164 elif test x$gcc_cv_as != x; then
2165 cat > conftest.s <<EOF
2172 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2173 gcc_cv_as_gotoff_in_data=yes
2176 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2177 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2178 [Define true if the assembler supports '.long foo@GOTOFF'.])
2179 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2183 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2184 gcc_cv_as_dwarf2_debug_line=no
2185 # ??? Not all targets support dwarf2 debug_line, even within a version
2186 # of gas. Moreover, we need to emit a valid instruction to trigger any
2187 # info to the output file. So, as supported targets are added to gas 2.11,
2188 # add some instruction here to (also) show we expect this might work.
2189 # ??? Once 2.11 is released, probably need to add first known working
2190 # version to the per-target configury.
2192 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2193 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-*)
2200 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2202 if test "$gcc_cv_gas_major_version" -eq 2 \
2203 -a "$gcc_cv_gas_minor_version" -ge 11 \
2204 -o "$gcc_cv_gas_major_version" -gt 2 \
2205 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2206 && test x"$insn" != x ; then
2207 gcc_cv_as_dwarf2_debug_line="yes"
2209 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2210 echo ' .file 1 "conftest.s"' > conftest.s
2211 echo ' .loc 1 3 0' >> conftest.s
2212 echo " $insn" >> conftest.s
2213 # ??? This fails with non-gnu grep.
2214 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2215 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2216 # The .debug_line file table must be in the exact order that
2217 # we specified the files, since these indices are also used
2218 # by DW_AT_decl_file. Approximate this test by testing if
2219 # the assembler bitches if the same index is assigned twice.
2220 echo ' .file 1 "foo.s"' > conftest.s
2221 echo ' .file 1 "bar.s"' >> conftest.s
2222 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2224 gcc_cv_as_dwarf2_debug_line="no"
2226 gcc_cv_as_dwarf2_debug_line="yes"
2229 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2231 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2232 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2233 [Define if your assembler supports dwarf2 .file/.loc directives,
2234 and preserves file table indices exactly as given.])
2236 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2238 AC_MSG_CHECKING(assembler --gdwarf2 support)
2239 gcc_cv_as_gdwarf2_flag=no
2240 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2242 if test "$gcc_cv_gas_major_version" -eq 2 \
2243 -a "$gcc_cv_gas_minor_version" -ge 11 \
2244 -o "$gcc_cv_gas_major_version" -gt 2 \
2245 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2246 && test x"$insn" != x ; then
2247 gcc_cv_as_gdwarf2_flag="yes"
2249 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2250 echo '' > conftest.s
2251 # ??? This fails with non-gnu grep.
2252 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2254 gcc_cv_as_gdwarf2_flag="yes"
2256 rm -f conftest.s conftest.o
2258 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2259 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2260 [Define if your assembler supports the --gdwarf2 option.])
2262 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2264 AC_MSG_CHECKING(assembler --gstabs support)
2265 gcc_cv_as_gstabs_flag=no
2266 if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x;
2268 if test "$gcc_cv_gas_major_version" -eq 2 \
2269 -a "$gcc_cv_gas_minor_version" -ge 11 \
2270 -o "$gcc_cv_gas_major_version" -gt 2 \
2271 && grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2272 && test x"$insn" != x ; then
2273 gcc_cv_as_gstabs_flag="yes"
2275 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2276 echo '' > conftest.s
2277 # ??? This fails with non-gnu grep.
2278 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2279 gcc_cv_as_gstabs_flag="yes"
2281 rm -f conftest.s conftest.o
2283 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2284 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2285 [Define if your assembler supports the --gstabs option.])
2287 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2289 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2290 gcc_cv_ld_ro_rw_mix=unknown
2291 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2292 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2293 gcc_cv_ld_ro_rw_mix=read-write
2295 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2296 echo '.section "myfoosect", "a"' > conftest1.s
2297 echo '.section "myfoosect", "aw"' > conftest2.s
2298 echo '.byte 1' >> conftest2.s
2299 echo '.section "myfoosect", "a"' > conftest3.s
2300 echo '.byte 0' >> conftest3.s
2301 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2302 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2303 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2304 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2305 conftest2.o conftest3.o; then
2306 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2307 | grep -A1 myfoosect`
2308 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2309 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2310 gcc_cv_ld_ro_rw_mix=read-only
2312 gcc_cv_ld_ro_rw_mix=read-write
2317 rm -f conftest.* conftest[123].*
2320 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2321 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2322 [Define if your linker links a mix of read-only
2323 and read-write sections into a read-write section.])
2325 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2327 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2328 gcc_cv_ld_eh_frame_hdr=no
2329 if test x$gcc_cv_gld_major_version != x -a x$gcc_cv_gld_minor_version != x; then
2330 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2331 gcc_cv_ld_eh_frame_hdr=yes
2333 elif test x$gcc_cv_ld != x; then
2334 # Check if linker supports --eh-frame-hdr option
2335 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2336 gcc_cv_ld_eh_frame_hdr=yes
2339 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2340 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2341 [Define if your linker supports --eh-frame-hdr option.])
2343 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2345 # Miscellaneous target-specific checks.
2348 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2349 gcc_cv_mips_libgloss_startup=no
2350 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2351 if test "x$exec_prefix" = xNONE; then
2352 if test "x$prefix" = xNONE; then
2353 test_prefix=/usr/local
2358 test_prefix=$exec_prefix
2360 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2362 if grep '^STARTUP' $f > /dev/null 2>&1; then
2363 gcc_cv_mips_libgloss_startup=yes
2367 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2368 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2369 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2371 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2375 if test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2376 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2379 # Figure out what language subdirectories are present.
2380 # Look if the user specified --enable-languages="..."; if not, use
2381 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2383 # NB: embedded tabs in this IF block -- do not untabify
2384 if test x"${enable_languages+set}" != xset; then
2385 if test x"${LANGUAGES+set}" = xset; then
2386 enable_languages="${LANGUAGES}"
2387 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2390 enable_languages=all
2393 if test x"${enable_languages}" = x \
2394 || test x"${enable_languages}" = xyes;
2396 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2399 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2401 # First scan to see if an enabled language requires some other language.
2402 # We assume that a given config-lang.in will list all the language
2403 # front ends it requires, even if some are required indirectly.
2404 for lang in ${srcdir}/*/config-lang.in ..
2409 # The odd quoting in the next line works around
2410 # an apparent bug in bash 1.12 on linux.
2412 ${srcdir}/[*]/config-lang.in)
2415 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2416 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2417 for other in $this_lang_requires
2419 case ,${enable_languages}, in
2425 enable_languages="$enable_languages,$other"
2434 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2437 for lang in ${srcdir}/*/config-lang.in ..
2441 # The odd quoting in the next line works around
2442 # an apparent bug in bash 1.12 on linux.
2444 ${srcdir}/[*]/config-lang.in) ;;
2446 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2447 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2448 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2449 if test "x$lang_alias" = x
2451 echo "$lang doesn't set \$language." 1>&2
2454 case ${build_by_default},${enable_languages}, in
2455 *,$lang_alias,*) add_this_lang=yes ;;
2456 no,*) add_this_lang=no ;;
2457 *,all,*) add_this_lang=yes ;;
2458 *) add_this_lang=no ;;
2460 found_languages="${found_languages} ${lang_alias}"
2461 if test x"${add_this_lang}" = xyes; then
2463 ${srcdir}/ada/config-lang.in)
2464 if test x$have_gnat = xyes ; then
2465 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2469 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2479 for expected_language in ${expected_languages} ..
2481 if test "${expected_language}" != ..; then
2482 missing_language="${expected_language}"
2483 if test "${expected_language}" = "c" \
2484 || test "${expected_language}" = "all"; then
2487 for found_language in ${found_languages} ..
2489 if test "${found_language}" != ..; then
2490 if test "${expected_language}" = "${found_language}"; then
2495 if test "x${missing_language}" != x; then
2496 missing_languages="${missing_languages} ${missing_language}"
2501 if test "x$missing_languages" != x; then
2503 The following requested languages were not found:${missing_languages}
2504 The following languages were available: c${found_languages}])
2507 # Make gthr-default.h if we have a thread file.
2509 if test $thread_file != single; then
2510 rm -f gthr-default.h
2511 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2512 gthread_flags=-DHAVE_GTHR_DEFAULT
2514 AC_SUBST(gthread_flags)
2516 # Find out what GC implementation we want, or may, use.
2518 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2525 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2530 echo "Using $GGC for garbage collection."
2532 # Use the system's zlib library.
2534 zlibinc="-I\$(srcdir)/../zlib"
2535 AC_ARG_WITH(system-zlib,
2536 [ --with-system-zlib use installed libz],
2543 dnl Very limited version of automake's enable-maintainer-mode
2545 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2546 dnl maintainer-mode is disabled by default
2547 AC_ARG_ENABLE(maintainer-mode,
2548 [ --enable-maintainer-mode
2549 enable make rules and dependencies not useful
2550 (and sometimes confusing) to the casual installer],
2551 maintainer_mode=$enableval,
2554 AC_MSG_RESULT($maintainer_mode)
2556 if test "$maintainer_mode" = "yes"; then
2563 # Make empty files to contain the specs and options for each language.
2564 # Then add #include lines to for a compiler that has specs and/or options.
2569 for subdir in . $subdirs
2571 if test -f $srcdir/$subdir/lang-specs.h; then
2572 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2574 if test -f $srcdir/$subdir/lang-options.h; then
2575 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2577 if test -f $srcdir/$subdir/$subdir-tree.def; then
2578 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2582 # These (without "all_") are set in each config-lang.in.
2583 # `language' must be a single word so is spelled singularly.
2588 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2589 # List of language makefile fragments.
2591 # Files for gengtype
2592 all_gtfiles="$target_gtfiles"
2593 # Files for gengtype with language
2594 all_gtfiles_files_langs=
2595 all_gtfiles_files_files=
2597 # Add the language fragments.
2598 # Languages are added via two mechanisms. Some information must be
2599 # recorded in makefile variables, these are defined in config-lang.in.
2600 # We accumulate them and plug them into the main Makefile.
2601 # The other mechanism is a set of hooks for each of the main targets
2602 # like `clean', `install', etc.
2604 language_fragments="Make-lang"
2605 language_hooks="Make-hooks"
2607 for s in .. $subdirs
2617 . ${srcdir}/$s/config-lang.in
2618 if test "x$language" = x
2620 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2623 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2624 if test -f ${srcdir}/$s/Makefile.in
2625 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2627 all_languages="$all_languages $language"
2628 if test "x$boot_language" = xyes
2630 all_boot_languages="$all_boot_languages $language"
2632 all_compilers="$all_compilers $compilers"
2633 all_stagestuff="$all_stagestuff $stagestuff"
2634 all_outputs="$all_outputs $outputs"
2635 all_gtfiles="$all_gtfiles $gtfiles"
2636 for f in .. $gtfiles
2640 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2641 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2647 # Pick up gtfiles for c
2650 . ${srcdir}/c-config-lang.in
2651 all_gtfiles="$all_gtfiles $gtfiles"
2652 for f in .. $gtfiles
2656 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2657 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2662 for language in .. $all_languages
2664 if test $language != ".."
2666 check_languages="$check_languages check-$language"
2670 # Since we can't use `::' targets, we link each language in
2671 # with a set of hooks, reached indirectly via lang.${target}.
2675 target_list="all.build all.cross start.encap rest.encap \
2676 info dvi generated-manpages \
2677 install-normal install-common install-info install-man \
2679 mostlyclean clean distclean extraclean maintainer-clean \
2680 stage1 stage2 stage3 stage4"
2681 for t in $target_list
2684 for lang in .. $all_languages
2686 if test $lang != ".."; then
2690 echo "lang.$t: $x" >> Make-hooks
2695 echo "dir ." > .gdbinit
2696 echo "dir ${srcdir}" >> .gdbinit
2697 if test x$gdb_needs_out_file_path = xyes
2699 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2701 if test "x$subdirs" != x; then
2704 echo "dir ${srcdir}/$s" >> .gdbinit
2707 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2709 # Define variables host_canonical and build_canonical
2710 # because some Cygnus local changes in the Makefile depend on them.
2711 build_canonical=${build}
2712 host_canonical=${host}
2714 if test "${host}" != "${target}" ; then
2715 target_subdir=${target_alias}/
2717 AC_SUBST(build_canonical)
2718 AC_SUBST(host_canonical)
2719 AC_SUBST(target_subdir)
2721 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2722 # absolute path for gcc_tooldir based on inserting the number of up-directory
2723 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2724 # $(libsubdir)/@(unlibsubdir) based path.
2725 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2726 # make and thus we'd get different behavior depending on where we built the
2728 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2729 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2731 changequote(<<, >>)dnl
2732 # An explanation of the sed strings:
2733 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2734 # -e 's|/$||' match a trailing forward slash and eliminates it
2735 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2736 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2738 # (*) Note this pattern overwrites the first character of the string
2739 # with a forward slash if one is not already present. This is not a
2740 # problem because the exact names of the sub-directories concerned is
2741 # unimportant, just the number of them matters.
2743 # The practical upshot of these patterns is like this:
2745 # prefix exec_prefix result
2746 # ------ ----------- ------
2748 # /foo/ /foo/bar ../
2749 # /foo /foo/bar/ ../
2750 # /foo/ /foo/bar/ ../
2751 # /foo /foo/bar/ugg ../../
2754 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2755 changequote([, ])dnl
2757 AC_SUBST(gcc_tooldir)
2760 # Find a directory in which to install a shared libgcc.
2762 AC_ARG_ENABLE(version-specific-runtime-libs,
2763 [ --enable-version-specific-runtime-libs
2764 specify that runtime libraries should be
2765 installed in a compiler-specific directory])
2767 AC_ARG_WITH(slibdir,
2768 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2769 slibdir="$with_slibdir",
2770 if test "${enable_version_specific_runtime_libs+set}" = set; then
2771 slibdir='$(libsubdir)'
2772 elif test "$host" != "$target"; then
2773 slibdir='$(build_tooldir)/lib'
2779 objdir=`${PWDCMD-pwd}`
2782 # Process the language and host/target makefile fragments.
2783 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2785 # Substitute configuration variables
2788 AC_SUBST(all_boot_languages)
2789 AC_SUBST(all_compilers)
2790 AC_SUBST(all_gtfiles)
2791 AC_SUBST(all_gtfiles_files_langs)
2792 AC_SUBST(all_gtfiles_files_files)
2793 AC_SUBST(all_lang_makefiles)
2794 AC_SUBST(all_languages)
2795 AC_SUBST(all_stagestuff)
2796 AC_SUBST(build_exeext)
2797 AC_SUBST(build_install_headers_dir)
2798 AC_SUBST(build_xm_file_list)
2799 AC_SUBST(build_xm_file)
2800 AC_SUBST(build_xm_defines)
2801 AC_SUBST(check_languages)
2802 AC_SUBST(cc_set_by_configure)
2803 AC_SUBST(quoted_cc_set_by_configure)
2804 AC_SUBST(cpp_install_dir)
2805 AC_SUBST(dep_host_xmake_file)
2806 AC_SUBST(dep_tmake_file)
2807 AC_SUBST(extra_headers_list)
2808 AC_SUBST(extra_objs)
2809 AC_SUBST(extra_parts)
2810 AC_SUBST(extra_passes)
2811 AC_SUBST(extra_programs)
2812 AC_SUBST(float_h_file)
2813 AC_SUBST(gcc_config_arguments)
2814 AC_SUBST(gcc_gxx_include_dir)
2815 AC_SUBST(libstdcxx_incdir)
2816 AC_SUBST(gcc_version)
2817 AC_SUBST(gcc_version_full)
2818 AC_SUBST(gcc_version_trigger)
2819 AC_SUBST(host_exeext)
2820 AC_SUBST(host_extra_gcc_objs)
2821 AC_SUBST(host_xm_file_list)
2822 AC_SUBST(host_xm_file)
2823 AC_SUBST(host_xm_defines)
2825 AC_SUBST(lang_options_files)
2826 AC_SUBST(lang_specs_files)
2827 AC_SUBST(lang_tree_files)
2828 AC_SUBST(local_prefix)
2830 AC_SUBST(objc_boehm_gc)
2832 AC_SUBST(out_object_file)
2833 AC_SUBST(stage_prefix_set_by_configure)
2834 AC_SUBST(quoted_stage_prefix_set_by_configure)
2835 AC_SUBST(symbolic_link)
2836 AC_SUBST(thread_file)
2837 AC_SUBST(tm_file_list)
2839 AC_SUBST(tm_defines)
2840 AC_SUBST(tm_p_file_list)
2843 AC_SUBST(xm_defines)
2844 AC_SUBST(target_alias)
2845 AC_SUBST(c_target_objs)
2846 AC_SUBST(cxx_target_objs)
2847 AC_SUBST(target_cpu_default)
2849 AC_SUBST_FILE(target_overrides)
2850 AC_SUBST_FILE(host_overrides)
2851 AC_SUBST_FILE(language_fragments)
2852 AC_SUBST_FILE(language_hooks)
2854 # Echo that links are built
2855 if test x$host = x$target
2863 if test x$host != x$build
2865 str3=" on a $build system"
2868 if test "x$str2" != x || test "x$str3" != x
2873 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2875 if test "x$str2" != x || test "x$str3" != x
2877 echo " ${str2}${str3}." 1>&2
2880 # Truncate the target if necessary
2881 if test x$host_truncate_target != x; then
2882 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
2885 # Configure the subdirectories
2886 # AC_CONFIG_SUBDIRS($subdirs)
2888 # Create the Makefile
2889 # and configure language subdirectories
2890 AC_OUTPUT($all_outputs,
2892 case x$CONFIG_HEADERS in
2893 xauto-host.h:config.in)
2896 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2897 # bootstrapping and the installation procedure can still use
2898 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2899 # FLAGS_TO_PASS has been modified to solve the problem there.
2900 # This is virtually a duplicate of what happens in configure.lang; we do
2901 # an extra check to make sure this only happens if ln -s can be used.
2902 if test "$symbolic_link" = "ln -s"; then
2903 for d in .. ${subdirs} fixinc ; do
2904 if test $d != ..; then
2905 STARTDIR=`${PWDCMD-pwd}`
2907 for t in stage1 stage2 stage3 stage4 include
2910 $symbolic_link ../$t $t 2>/dev/null
2916 # Avoid having to add intl to our include paths.
2917 if test -f intl/libintl.h; then
2918 echo creating libintl.h
2919 echo '#include "intl/libintl.h"' >libintl.h
2923 symbolic_link='$symbolic_link'