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 # --------------------------------
25 # Initialization and sanity checks
26 # --------------------------------
30 AC_CONFIG_HEADER(auto-host.h:config.in)
32 # Determine the host, build, and target systems
35 # Determine the target- and build-specific subdirectories
38 # Set program_transform_name
41 # Check for bogus environment variables.
42 # Test if LIBRARY_PATH contains the notation for the current directory
43 # since this would lead to problems installing/building glibc.
44 # LIBRARY_PATH contains the current directory if one of the following
46 # - one of the terminals (":" and ";") is the first or last sign
47 # - two terminals occur directly after each other
48 # - the path contains an element with a dot in it
49 AC_MSG_CHECKING(LIBRARY_PATH variable)
51 case ${LIBRARY_PATH} in
52 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
53 library_path_setting="contains current directory"
56 library_path_setting="ok"
60 AC_MSG_RESULT($library_path_setting)
61 if test "$library_path_setting" != "ok"; then
63 *** LIBRARY_PATH shouldn't contain the current directory when
64 *** building gcc. Please change the environment variable
65 *** and run configure again.])
68 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
69 # since this would lead to problems installing/building glibc.
70 # GCC_EXEC_PREFIX contains the current directory if one of the following
72 # - one of the terminals (":" and ";") is the first or last sign
73 # - two terminals occur directly after each other
74 # - the path contains an element with a dot in it
75 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
77 case ${GCC_EXEC_PREFIX} in
78 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
79 gcc_exec_prefix_setting="contains current directory"
82 gcc_exec_prefix_setting="ok"
86 AC_MSG_RESULT($gcc_exec_prefix_setting)
87 if test "$gcc_exec_prefix_setting" != "ok"; then
89 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
90 *** building gcc. Please change the environment variable
91 *** and run configure again.])
98 # Specify the local prefix
100 AC_ARG_WITH(local-prefix,
101 [ --with-local-prefix=DIR specifies directory to put local include],
102 [case "${withval}" in
103 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
105 *) local_prefix=$with_local_prefix ;;
108 # Default local prefix if it is empty
109 if test x$local_prefix = x; then
110 local_prefix=/usr/local
113 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
114 # passed in by the toplevel make and thus we'd get different behavior
115 # depending on where we built the sources.
117 # Specify the g++ header file directory
118 AC_ARG_WITH(gxx-include-dir,
119 [ --with-gxx-include-dir=DIR
120 specifies directory to put g++ header files],
121 [case "${withval}" in
122 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
124 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
127 if test x${gcc_gxx_include_dir} = x; then
128 if test x${enable_version_specific_runtime_libs} = xyes; then
129 gcc_gxx_include_dir='${libsubdir}/include/c++'
131 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
132 changequote(<<, >>)dnl
133 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
138 AC_ARG_WITH(cpp_install_dir,
139 [ --with-cpp-install-dir=DIR
140 install the user visible C preprocessor in DIR
141 (relative to PREFIX) as well as PREFIX/bin],
142 [if test x$withval = xyes; then
143 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
144 elif test x$withval != xno; then
145 cpp_install_dir=$withval
148 # -------------------
149 # Find default linker
150 # -------------------
154 [ --with-gnu-ld arrange to work with GNU ld.],
155 gnu_ld_flag="$with_gnu_ld",
158 # With pre-defined ld
160 [ --with-ld arrange to use the specified ld (full pathname)],
161 DEFAULT_LINKER="$with_ld")
162 if test x"${DEFAULT_LINKER+set}" = x"set"; then
163 if test ! -x "$DEFAULT_LINKER"; then
164 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
165 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
168 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
169 [Define to enable the use of a default linker.])
172 AC_MSG_CHECKING([whether a default linker was specified])
173 if test x"${DEFAULT_LINKER+set}" = x"set"; then
174 if test x"$gnu_ld_flag" = x"no"; then
175 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
177 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
183 # ----------------------
184 # Find default assembler
185 # ----------------------
189 [ --with-gnu-as arrange to work with GNU as],
190 gas_flag="$with_gnu_as",
194 [ --with-as arrange to use the specified as (full pathname)],
195 DEFAULT_ASSEMBLER="$with_as")
196 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
197 if test ! -x "$DEFAULT_ASSEMBLER"; then
198 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
199 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
202 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
203 [Define to enable the use of a default assembler.])
206 AC_MSG_CHECKING([whether a default assembler was specified])
207 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
208 if test x"$gas_flag" = x"no"; then
209 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
211 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
221 # Find the native compiler
224 # autoconf is lame and doesn't give us any substitution variable for this.
225 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
226 NO_MINUS_C_MINUS_O=yes
228 OUTPUT_OPTION='-o $@'
230 AC_SUBST(NO_MINUS_C_MINUS_O)
231 AC_SUBST(OUTPUT_OPTION)
233 # -------------------------
234 # Check C compiler features
235 # -------------------------
237 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
238 ac_cv_prog_cc_no_long_long,
239 [save_CFLAGS="$CFLAGS"
240 CFLAGS="-Wno-long-long"
241 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
242 ac_cv_prog_cc_no_long_long=no)
243 CFLAGS="$save_CFLAGS"])
251 # sizeof(char) is 1 by definition.
252 AC_COMPILE_CHECK_SIZEOF(void *)
253 AC_COMPILE_CHECK_SIZEOF(short)
254 AC_COMPILE_CHECK_SIZEOF(int)
255 AC_COMPILE_CHECK_SIZEOF(long)
256 if test $ac_cv_c_long_long = yes; then
257 AC_COMPILE_CHECK_SIZEOF(long long)
259 if test $ac_cv_c___int64 = yes; then
260 AC_COMPILE_CHECK_SIZEOF(__int64)
267 # See if GNAT has been installed
270 if test x$have_gnat != xno ; then
271 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
272 ac_cv_prog_adac_no_long_long,
273 [cat >conftest.adb <<EOF
274 procedure conftest is begin null; end conftest;
276 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
277 ac_cv_prog_adac_no_long_long=yes
279 ac_cv_prog_adac_no_long_long=no
283 ac_cv_prog_adac_no_long_long=yes
286 # ---------------------
287 # Warnings and checking
288 # ---------------------
291 if test $ac_cv_prog_cc_no_long_long = yes && \
292 test $ac_cv_prog_adac_no_long_long = yes ; then
293 strict1_warn="-pedantic -Wno-long-long"
295 AC_SUBST(strict1_warn)
297 # If the native compiler is GCC, we can enable warnings even in stage1.
298 # That's useful for people building cross-compilers, or just running a
301 if test "x$GCC" = "xyes"; then
302 warn_cflags='$(GCC_WARN_CFLAGS)'
304 AC_SUBST(warn_cflags)
306 # Enable -Werror in bootstrap stage2 and later.
307 # Change the default to "no" on release branches.
308 AC_ARG_ENABLE(werror,
309 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
311 if test x$enable_werror = xyes ; then
316 # Enable expensive internal checks
317 AC_ARG_ENABLE(checking,
318 [ --enable-checking[=LIST]
319 enable expensive run-time checks. With LIST,
320 enable only specific categories of checks.
321 Categories are: misc,tree,rtl,rtlflag,gc,gcac,fold;
322 default is misc,tree,gc,rtlflag],
328 ac_gc_always_collect=
330 case "${enableval}" in
331 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
332 ac_rtlflag_checking=1 ;;
334 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
335 set fnord $enableval; shift
340 misc) ac_checking=1 ;;
341 tree) ac_tree_checking=1 ;;
342 rtlflag) ac_rtlflag_checking=1 ;;
343 rtl) ac_rtl_checking=1 ;;
344 gc) ac_gc_checking=1 ;;
345 gcac) ac_gc_always_collect=1 ;;
346 fold) ac_fold_checking=1 ;;
347 valgrind) ac_checking_valgrind=1 ;;
348 *) AC_MSG_ERROR(unknown check category $check) ;;
354 # Enable some checks by default for development versions of GCC
355 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
357 if test x$ac_checking != x ; then
358 AC_DEFINE(ENABLE_CHECKING, 1,
359 [Define if you want more run-time sanity checks. This one gets a grab
360 bag of miscellaneous but relatively cheap checks.])
361 nocommon_flag=-fno-common
363 AC_SUBST(nocommon_flag)
364 if test x$ac_tree_checking != x ; then
365 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
366 [Define if you want all operations on trees (the basic data
367 structure of the front ends) to be checked for dynamic type safety
368 at runtime. This is moderately expensive.])
370 if test x$ac_rtl_checking != x ; then
371 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
372 [Define if you want all operations on RTL (the basic data structure
373 of the optimizer and back end) to be checked for dynamic type safety
374 at runtime. This is quite expensive.])
376 if test x$ac_rtlflag_checking != x ; then
377 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
378 [Define if you want RTL flag accesses to be checked against the RTL
379 codes that are supported for each access macro. This is relatively
382 if test x$ac_gc_checking != x ; then
383 AC_DEFINE(ENABLE_GC_CHECKING, 1,
384 [Define if you want the garbage collector to do object poisoning and
385 other memory allocation checks. This is quite expensive.])
387 if test x$ac_gc_always_collect != x ; then
388 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
389 [Define if you want the garbage collector to operate in maximally
390 paranoid mode, validating the entire heap and collecting garbage at
391 every opportunity. This is extremely expensive.])
393 if test x$ac_fold_checking != x ; then
394 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
395 [Define if you want fold checked that it never destructs its argument.
396 This is quite expensive.])
398 valgrind_path_defines=
400 if test x$ac_checking_valgrind != x ; then
401 # It is certainly possible that there's valgrind but no valgrind.h.
402 # GCC relies on making annotations so we must have both.
403 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
405 [#include <memcheck.h>
406 #ifndef VALGRIND_DISCARD
407 #error VALGRIND_DISCARD not defined
409 [gcc_cv_header_memcheck_h=yes],
410 gcc_cv_header_memcheck_h=no)
411 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
412 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
413 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
414 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
415 if test "x$valgrind_path" = "x" || (test $have_valgrind_h = no && test $gcc_cv_header_memcheck_h = no); then
416 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h/memcheck.h])
418 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
419 valgrind_command="$valgrind_path -q"
420 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
421 [Define if you want to run subprograms and generated programs
422 through valgrind (a memory checker). This is extremely expensive.])
423 if test $gcc_cv_header_memcheck_h = yes; then
424 AC_DEFINE(HAVE_MEMCHECK_H, 1,
425 [Define if valgrind's memcheck.h header is installed.])
428 AC_SUBST(valgrind_path_defines)
429 AC_SUBST(valgrind_command)
431 # Enable code coverage collection
432 AC_ARG_ENABLE(coverage,
433 [ --enable-coverage[=LEVEL]
434 enable compiler\'s code coverage collection.
435 Use to measure compiler performance and locate
436 unused parts of the compiler. With LEVEL, specify
437 optimization. Values are opt, noopt,
439 [case "${enableval}" in
441 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
444 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
447 AC_MSG_ERROR(unknown coverage setting $enableval)
451 AC_SUBST(coverage_flags)
453 # -------------------------------
454 # Miscenalleous configure options
455 # -------------------------------
459 [ --with-stabs arrange to use stabs instead of host debug format],
465 [ --with-elf arrange to use ELF instead of host debug format],
469 # Determine whether or not multilibs are enabled.
470 AC_ARG_ENABLE(multilib,
471 [ --enable-multilib enable library support for multiple ABIs],
472 [], [enable_multilib=yes])
473 AC_SUBST(enable_multilib)
475 # Enable __cxa_atexit for C++.
476 AC_ARG_ENABLE(__cxa_atexit,
477 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
481 # Pass with no value to take the default
482 # Pass with a value to specify a thread package
483 AC_ARG_ENABLE(threads,
484 [ --enable-threads enable thread usage for target GCC
485 --enable-threads=LIB use LIB thread package for target GCC],,
488 enable_threads_flag=$enable_threads
489 # Check if a valid thread package
490 case x${enable_threads_flag} in
493 target_thread_file='single'
497 target_thread_file=''
499 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
500 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix | xgnat)
501 target_thread_file=$enable_threads_flag
504 echo "$enable_threads is an unknown thread package" 1>&2
509 AC_ARG_ENABLE(objc-gc,
510 [ --enable-objc-gc enable the use of Boehm's garbage collector with
511 the GNU Objective-C runtime],
512 if test x$enable_objc_gc = xno; then
520 [ --with-dwarf2 force the default debug format to be DWARF 2],
521 dwarf2="$with_dwarf2",
524 AC_ARG_ENABLE(shared,
525 [ --disable-shared don't provide a shared libgcc],
527 case $enable_shared in
531 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
532 for pkg in $enableval; do
533 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
540 ], [enable_shared=yes])
541 AC_SUBST(enable_shared)
544 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
546 case ${with_sysroot} in
547 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
548 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
551 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
552 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
554 if test "x$exec_prefix" = xNONE; then
555 if test "x$prefix" = xNONE; then
556 test_prefix=/usr/local
561 test_prefix=$exec_prefix
563 case ${TARGET_SYSTEM_ROOT} in
564 "${test_prefix}"|"${test_prefix}/"*|\
565 '${exec_prefix}'|'${exec_prefix}/'*)
566 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
567 TARGET_SYSTEM_ROOT_DEFINE="$t"
572 TARGET_SYSTEM_ROOT_DEFINE=
573 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
575 AC_SUBST(TARGET_SYSTEM_ROOT)
576 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
577 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
579 # Build with intermodule optimisations
580 AC_ARG_ENABLE(intermodule,
581 [ --enable-intermodule build the compiler in one step],
582 [case ${enable_intermodule} in
583 yes) onestep="-onestep";;
589 # -------------------------
590 # Checks for other programs
591 # -------------------------
595 # Find some useful tools
602 # See if cmp has --ignore-initial.
603 gcc_AC_PROG_CMP_IGNORE_INITIAL
605 # See if we have the mktemp command.
606 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
608 # Do we have a single-tree copy of texinfo?
609 if test -f $srcdir/../texinfo/Makefile.in; then
610 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
611 gcc_cv_prog_makeinfo_modern=yes
612 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
614 # See if makeinfo has been installed and is modern enough
615 # that we can use it.
616 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
617 [GNU texinfo.* \([0-9][0-9.]*\)],
621 if test $gcc_cv_prog_makeinfo_modern = no; then
623 *** Makeinfo is missing or too old.
624 *** Info documentation will not be built.])
627 BUILD_INFO=info AC_SUBST(BUILD_INFO)
630 # Is pod2man recent enough to regenerate manpages?
631 AC_MSG_CHECKING([for recent Pod::Man])
632 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
634 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
641 dnl Don't use AC_PROG_LEX; we insist on flex.
642 dnl LEXLIB is not useful in gcc.
643 if test -f $srcdir/../flex/skel.c; then
644 FLEX='$(objdir)/../flex/flex'
646 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
650 # The -L switch is so bison can find its skeleton file.
651 if test -f $srcdir/../bison/bison.simple; then
652 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
654 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
657 # --------------------
658 # Checks for C headers
659 # --------------------
661 AC_MSG_CHECKING(for GNU C library)
662 AC_CACHE_VAL(gcc_cv_glibc,
664 [#include <features.h>],[
665 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
666 #error Not a GNU C library system
670 AC_MSG_RESULT($gcc_cv_glibc)
671 if test $gcc_cv_glibc = yes; then
672 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
677 gcc_AC_HEADER_STDBOOL
680 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
681 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
682 sys/resource.h sys/param.h sys/times.h sys/stat.h \
683 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
685 # Check for thread headers.
686 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
687 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
689 # These tests can't be done till we know if we have limits.h.
697 # Stage specific cflags for build.
703 stage1_cflags="-Wa,-J"
709 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
710 # sources; use -no-cpp-precomp to get to GNU cpp.
711 # Apple's GCC has bugs in designated initializer handling, so disable
713 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
716 AC_SUBST(stage1_cflags)
718 # These libraries may be used by collect2.
719 # We may need a special search path to get them linked.
720 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
722 for libs in '' -lld -lmld \
723 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
724 '-L/usr/lib/cmplrs/cc3.11 -lmld'
727 AC_TRY_LINK_FUNC(ldopen,
728 [gcc_cv_collect2_libs="$libs"; break])
731 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
732 case $gcc_cv_collect2_libs in
734 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
736 AC_SUBST(COLLECT2_LIBS)
738 # When building Ada code on Alpha, we need exc_resume which is usually in
739 # -lexc. So test for it.
742 AC_SEARCH_LIBS(exc_resume, exc)
745 AC_SUBST(GNAT_LIBEXC)
747 # Some systems put ldexp and frexp in libm instead of libc; assume
748 # they're both in the same place. jcf-dump needs them.
751 AC_SEARCH_LIBS(ldexp, m)
756 # Use <inttypes.h> only if it exists,
757 # doesn't clash with <sys/types.h>, and declares intmax_t.
758 AC_MSG_CHECKING(for inttypes.h)
759 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
761 [#include <sys/types.h>
762 #include <inttypes.h>],
764 [gcc_cv_header_inttypes_h=yes],
765 gcc_cv_header_inttypes_h=no)])
766 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
767 if test $gcc_cv_header_inttypes_h = yes; then
768 AC_DEFINE(HAVE_INTTYPES_H, 1,
769 [Define if you have a working <inttypes.h> header file.])
772 dnl Disabled until we have a complete test for buggy enum bitfields.
773 dnl gcc_AC_C_ENUM_BF_UNSIGNED
775 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
776 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
777 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
778 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
781 if test x$ac_cv_func_mbstowcs = xyes; then
782 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
783 [ AC_TRY_RUN([#include <stdlib.h>
789 gcc_cv_func_mbstowcs_works=yes,
790 gcc_cv_func_mbstowcs_works=no,
791 gcc_cv_func_mbstowcs_works=yes)])
792 if test x$gcc_cv_func_mbstowcs_works = xyes; then
793 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
794 [Define this macro if mbstowcs does not crash when its
795 first argument is NULL.])
799 gcc_AC_CHECK_TYPE(ssize_t, int)
801 # Try to determine the array type of the second argument of getgroups
802 # for the target system (int or gid_t).
804 if test "${target}" = "${build}"; then
805 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
808 # This condition may need some tweaking. It should include all
809 # targets where the array type of the second argument of getgroups
810 # is int and the type of gid_t is not equivalent to int.
811 *-*-sunos* | *-*-ultrix*)
812 TARGET_GETGROUPS_T=int
815 TARGET_GETGROUPS_T=gid_t
819 AC_SUBST(TARGET_GETGROUPS_T)
821 gcc_AC_FUNC_PRINTF_PTR
822 gcc_AC_FUNC_MMAP_BLACKLIST
827 *** UWIN may not be used as a host platform because
828 *** linking with posix.dll is not allowed by the GNU GPL])
831 # Under VMS, vfork works very different than on Unix. The standard test
832 # won't work, and it isn't easily adaptable. It makes more sense to
834 ac_cv_func_vfork_works=yes
840 # Until we have in-tree GNU iconv:
842 AC_SUBST(LIBICONV_DEP)
846 # We will need to find libiberty.h and ansidecl.h
847 saved_CFLAGS="$CFLAGS"
848 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
849 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
850 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
851 fprintf_unlocked strstr errno vasprintf \
852 malloc realloc calloc free basename getopt clock, , ,[
853 #include "ansidecl.h"
854 #include "system.h"])
856 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
857 #include "ansidecl.h"
859 #ifdef HAVE_SYS_RESOURCE_H
860 #include <sys/resource.h>
865 #include "ansidecl.h"
867 #ifdef HAVE_SYS_RESOURCE_H
868 #include <sys/resource.h>
870 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
871 [Define to \`long' if <sys/resource.h> doesn't define.])])
873 gcc_AC_CHECK_DECLS(ldgetname, , ,[
874 #include "ansidecl.h"
881 gcc_AC_CHECK_DECLS(times, , ,[
882 #include "ansidecl.h"
884 #ifdef HAVE_SYS_TIMES_H
885 #include <sys/times.h>
889 # More time-related stuff.
890 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
892 #include "ansidecl.h"
894 #ifdef HAVE_SYS_TIMES_H
895 #include <sys/times.h>
897 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
898 if test $ac_cv_struct_tms = yes; then
899 AC_DEFINE(HAVE_STRUCT_TMS, 1,
900 [Define if <sys/times.h> defines struct tms.])
903 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
904 # revisit after autoconf 2.50.
905 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
907 #include "ansidecl.h"
909 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
910 if test $gcc_cv_type_clock_t = yes; then
911 AC_DEFINE(HAVE_CLOCK_T, 1,
912 [Define if <time.h> defines clock_t.])
915 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
917 #include "ansidecl.h"
920 [if ((uchar *)0) return 0;
921 if (sizeof(uchar)) return 0;],
922 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
923 if test $ac_cv_type_uchar = yes; then
924 AC_DEFINE(HAVE_UCHAR, 1,
925 [Define if <sys/types.h> defines \`uchar'.])
928 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
929 CFLAGS="$saved_CFLAGS"
931 gcc_AC_INITFINI_ARRAY
933 # mkdir takes a single argument on some systems.
934 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
942 # With Setjmp/Longjmp based exception handling.
943 AC_ARG_ENABLE(sjlj-exceptions,
944 [ --enable-sjlj-exceptions
945 arrange to use setjmp/longjmp exception handling],
946 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
947 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
948 [Define 0/1 to force the choice for exception handling model.])])
950 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
951 # Use libunwind based exception handling.
952 AC_ARG_ENABLE(libunwind-exceptions,
953 [ --enable-libunwind-exceptions force use libunwind for exceptions],
954 use_libunwind_exceptions=$enableval,
955 use_libunwind_exceptions=$use_libunwind_default)
956 if test x"$use_libunwind_exceptions" = xyes; then
957 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
958 [Define if gcc should use -lunwind.])
961 # --------------------------------------------------------
962 # Build, host, and target specific configuration fragments
963 # --------------------------------------------------------
968 build_install_headers_dir=install-headers-tar
975 # Decode the host machine, then the target machine.
976 # For the host machine, we save the xm_file variable as host_xm_file;
977 # then we decode the target machine and forget everything else
978 # that came from the host machine.
979 for machine in $build $host $target; do
980 . ${srcdir}/config.gcc
983 extra_objs="${host_extra_objs} ${extra_objs}"
985 # Default the target-machine variables that were not explicitly set.
986 if test x"$tm_file" = x
987 then tm_file=$cpu_type/$cpu_type.h; fi
989 if test x"$extra_headers" = x
990 then extra_headers=; fi
992 if test x$md_file = x
993 then md_file=$cpu_type/$cpu_type.md; fi
995 if test x$out_file = x
996 then out_file=$cpu_type/$cpu_type.c; fi
998 if test x"$tmake_file" = x
999 then tmake_file=$cpu_type/t-$cpu_type
1002 if test x"$dwarf2" = xyes
1003 then tm_file="$tm_file tm-dwarf2.h"
1006 # Say what files are being used for the output code and MD file.
1007 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1008 echo "Using \`$srcdir/config/$md_file' as machine description file."
1010 # If any of the xm_file variables contain nonexistent files, warn
1011 # about them and drop them.
1014 for x in $build_xm_file; do
1015 if test -f $srcdir/config/$x
1017 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1023 for x in $host_xm_file; do
1024 if test -f $srcdir/config/$x
1026 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1032 for x in $xm_file; do
1033 if test -f $srcdir/config/$x
1035 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1041 for f in $tm_file; do
1044 if test $count = ax; then
1045 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1047 echo "Using the following target machine macro files:"
1048 for f in $tm_file; do
1049 echo " $srcdir/config/$f"
1053 if test x$need_64bit_hwint = xyes; then
1054 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1055 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1059 for f in $host_xm_file; do
1062 if test $count = a; then
1064 elif test $count = ax; then
1065 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1067 echo "Using the following host machine macro files:"
1068 for f in $host_xm_file; do
1069 echo " $srcdir/config/$f"
1072 echo "Using ${out_host_hook_obj} for host machine hooks."
1074 if test "$host_xm_file" != "$build_xm_file"; then
1076 for f in $build_xm_file; do
1079 if test $count = a; then
1081 elif test $count = ax; then
1082 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1084 echo "Using the following build machine macro files:"
1085 for f in $build_xm_file; do
1086 echo " $srcdir/config/$f"
1091 if test x$thread_file = x; then
1092 if test x$target_thread_file != x; then
1093 thread_file=$target_thread_file
1095 thread_file='single'
1099 if test x$enable___cxa_atexit = xyes || \
1100 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1101 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1102 [Define if you want to use __cxa_atexit, rather than atexit, to
1103 register C++ destructors for local statics and global objects.
1104 This is essential for fully standards-compliant handling of
1105 destructors, but requires __cxa_atexit in libc.])
1108 # Look for a file containing extra machine modes.
1109 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1110 extra_modes_file='$(srcdir)'/config/${extra_modes}
1111 AC_SUBST(extra_modes_file)
1112 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1113 [Define to the name of a file containing a list of extra machine modes
1114 for this architecture.])
1115 AC_DEFINE(EXTRA_CC_MODES, 1,
1116 [Define if the target architecture needs extra machine modes to represent
1117 the results of comparisons.])
1120 # auto-host.h is the file containing items generated by autoconf and is
1121 # the first file included by config.h.
1122 # If host=build, it is correct to have bconfig include auto-host.h
1123 # as well. If host!=build, we are in error and need to do more
1124 # work to find out the build config parameters.
1125 if test x$host = x$build
1127 build_auto=auto-host.h
1130 # We create a subdir, then run autoconf in the subdir.
1131 # To prevent recursion we set host and build for the new
1132 # invocation of configure to the build for this invocation
1139 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1140 *) realsrcdir=../${srcdir};;
1142 saved_CFLAGS="${CFLAGS}"
1143 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1144 ${realsrcdir}/configure \
1145 --target=$target_alias --host=$build_alias --build=$build_alias
1146 CFLAGS="${saved_CFLAGS}"
1148 # We just finished tests for the build machine, so rename
1149 # the file auto-build.h in the gcc directory.
1150 mv auto-host.h ../auto-build.h
1153 build_auto=auto-build.h
1154 FORBUILD=../${build_subdir}
1158 tm_file="${tm_file} defaults.h"
1159 tm_p_file="${tm_p_file} tm-preds.h"
1160 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1161 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1162 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1163 # put this back in temporarily.
1164 xm_file="ansidecl.h ${xm_file}"
1170 # Get the version trigger filename from the toplevel
1171 if test "${with_gcc_version_trigger+set}" = set; then
1172 gcc_version_trigger=$with_gcc_version_trigger
1174 gcc_version_trigger=${srcdir}/version.c
1177 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1178 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1180 # Compile in configure arguments.
1181 if test -f configargs.h ; then
1182 # Being re-configured.
1183 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1184 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1186 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1188 cat > configargs.h <<EOF
1189 /* Generated automatically. */
1190 static const char configuration_arguments[] = "$gcc_config_arguments";
1191 static const char thread_model[] = "$thread_file";
1193 static const struct {
1194 const char *name, *value;
1195 } configure_default_options[] = $configure_default_options;
1199 # Internationalization
1201 VERSION="$gcc_version"
1205 ZW_GNU_GETTEXT_SISTER_DIR
1207 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1208 # -liconv on the link line twice.
1209 case "$LIBINTL" in *$LIBICONV*)
1213 # Windows32 Registry support for specifying GCC installation paths.
1214 AC_ARG_ENABLE(win32-registry,
1215 [ --disable-win32-registry
1216 disable lookup of installation paths in the
1217 Registry on Windows hosts
1218 --enable-win32-registry enable registry lookup (default)
1219 --enable-win32-registry=KEY
1220 use KEY instead of GCC version as the last portion
1221 of the registry key],,)
1223 win32 | pe | cygwin* | mingw32* | uwin*)
1224 AC_MSG_CHECKING(whether windows registry support is requested)
1225 if test "x$enable_win32_registry" != xno; then
1226 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1227 [Define to 1 if installation paths should be looked up in Windows32
1228 Registry. Ignored on non windows32 hosts.])
1230 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1235 # Check if user specified a different registry key.
1236 case "x${enable_win32_registry}" in
1239 gcc_cv_win32_registry_key="$VERSION"
1242 # no registry lookup.
1243 gcc_cv_win32_registry_key=''
1246 # user-specified key.
1247 gcc_cv_win32_registry_key="$enable_win32_registry"
1251 if test "x$enable_win32_registry" != xno; then
1252 AC_MSG_CHECKING(registry key on windows hosts)
1253 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1254 [Define to be the last portion of registry key on windows hosts.])
1255 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1260 # Get an absolute path to the GCC top-level source directory
1261 holddir=`${PWDCMD-pwd}`
1263 topdir=`${PWDCMD-pwd}`
1266 # Conditionalize the makefile for this host machine.
1267 # Make-host contains the concatenation of all host makefile fragments
1268 # [there can be more than one]. This file is built by configure.frag.
1269 host_overrides=Make-host
1270 dep_host_xmake_file=
1271 for f in .. ${host_xmake_file}
1273 if test -f ${srcdir}/config/$f
1275 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1279 # Conditionalize the makefile for this target machine.
1280 # Make-target contains the concatenation of all host makefile fragments
1281 # [there can be more than one]. This file is built by configure.frag.
1282 target_overrides=Make-target
1284 for f in .. ${tmake_file}
1286 if test -f ${srcdir}/config/$f
1288 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1292 symbolic_link='ln -s'
1294 # If the host doesn't support symlinks, modify CC in
1295 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1296 # Otherwise, we can use "CC=$(CC)".
1298 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1300 cc_set_by_configure="\$(CC)"
1301 quoted_cc_set_by_configure="\$(CC)"
1302 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1303 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1306 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1308 symbolic_link="cp -p"
1312 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1313 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1314 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1315 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1319 out_object_file=`basename $out_file .c`.o
1322 for f in $tm_file; do
1325 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1327 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1328 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1333 for f in $tm_p_file; do
1336 tm_p_file_list="${tm_p_file_list} $f" ;;
1337 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1342 for f in $host_xm_file; do
1345 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1347 host_xm_file_list="${host_xm_file_list} $f" ;;
1349 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1350 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1355 for f in $build_xm_file; do
1358 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1359 auto-build.h | auto-host.h )
1360 build_xm_file_list="${build_xm_file_list} $f" ;;
1362 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1363 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1367 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1368 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1369 CROSS= AC_SUBST(CROSS)
1370 ALL=all.internal AC_SUBST(ALL)
1371 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1372 if test x$host != x$target
1374 CROSS="-DCROSS_COMPILE"
1376 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1377 case "$host","$target" in
1378 i?86-*-*,x86_64-*-* \
1379 | powerpc*-*-*,powerpc64*-*-*)
1380 CROSS="$CROSS -DNATIVE_CROSS" ;;
1382 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1383 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1384 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1387 # If this is a cross-compiler that does not
1388 # have its own set of headers then define
1391 # If this is using newlib, without having the headers available now,
1392 # then define inhibit_libc in LIBGCC2_CFLAGS.
1393 # This prevents libgcc2 from containing any code which requires libc
1396 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1397 test x$with_newlib = xyes ; } &&
1398 test "x$with_headers" = x ; then
1399 inhibit_libc=-Dinhibit_libc
1401 AC_SUBST(inhibit_libc)
1403 # When building gcc with a cross-compiler, we need to adjust things so
1404 # that the generator programs are still built with the native compiler.
1405 # Also, we cannot run fixincludes or fix-header.
1407 # These are the normal (build=host) settings:
1408 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1409 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1410 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1411 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1413 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1414 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1416 # And these apply if build != host, or we are generating coverage data
1417 if test x$build != x$host || test "x$coverage_flags" != x
1420 BUILD_PREFIX_1=build-
1421 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1423 if test "x$TARGET_SYSTEM_ROOT" = x; then
1429 # Expand extra_headers to include complete path.
1430 # This substitutes for lots of t-* files.
1432 if test "x$extra_headers" = x
1435 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1436 for file in $extra_headers;
1438 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1442 # Add a definition of USE_COLLECT2 if system wants one.
1443 case $use_collect2 in
1444 no) use_collect2= ;;
1447 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1448 xm_defines="${xm_defines} USE_COLLECT2"
1452 # Identify the assembler which will work hand-in-glove with the newly
1453 # built GCC, so that we can examine its features. This is the assembler
1454 # which will be driven by the driver program.
1456 # If build != host, and we aren't building gas in-tree, we identify a
1457 # build->target assembler and hope that it will have the same features
1458 # as the host->target assembler we'll be using.
1459 AC_MSG_CHECKING(what assembler to use)
1462 gcc_cv_gas_major_version=
1463 gcc_cv_gas_minor_version=
1464 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1465 if test -x "$DEFAULT_ASSEMBLER"; then
1466 gcc_cv_as="$DEFAULT_ASSEMBLER"
1467 elif test -x "$AS"; then
1469 elif test -x as$host_exeext; then
1470 # Build using assembler in the current directory.
1471 gcc_cv_as=./as$host_exeext
1472 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1473 && test -f ../gas/Makefile; then
1474 # Single tree build which includes gas.
1476 _gcc_COMPUTE_GAS_VERSION
1477 rm -f as$host_exeext
1478 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1479 in_tree_gas_is_elf=no
1480 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1481 || (grep 'obj_format = multi' ../gas/Makefile \
1482 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1484 in_tree_gas_is_elf=yes
1488 if test "x$gcc_cv_as" = x; then
1489 # Search the same directories that the installed compiler will
1490 # search. Else we may find the wrong assembler and lose. If we
1491 # do not find a suitable assembler binary, then try the user's
1494 # Also note we have to check MD_EXEC_PREFIX before checking the
1495 # user's path. Unfortunately, there is no good way to get at the
1496 # value of MD_EXEC_PREFIX here. So we do a brute force search
1497 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1498 # to be fixed as part of the make/configure rewrite too.
1500 if test "x$exec_prefix" = xNONE; then
1501 if test "x$prefix" = xNONE; then
1502 test_prefix=/usr/local
1507 test_prefix=$exec_prefix
1510 # If the loop below does not find an assembler, then use whatever
1511 # one we can find in the users's path.
1513 if test "x$program_prefix" != xNONE; then
1514 gcc_cv_as=${program_prefix}as$host_exeext
1516 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1519 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1520 $test_prefix/lib/gcc-lib/$target_alias \
1521 /usr/lib/gcc/$target_alias/$gcc_version \
1522 /usr/lib/gcc/$target_alias \
1523 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1524 $test_prefix/$target_alias/bin"
1526 if test x$host = x$target; then
1527 test_dirs="$test_dirs \
1532 /bsd43/usr/lib/cmplrs/cc \
1533 /usr/cross64/usr/bin \
1534 /usr/lib/cmplrs/cc \
1535 /sysv/usr/lib/cmplrs/cc \
1536 /svr4/usr/lib/cmplrs/cc \
1540 for dir in $test_dirs; do
1541 if test -x $dir/as$host_exeext; then
1542 gcc_cv_as=$dir/as$host_exeext
1547 case $in_tree_gas in
1549 AC_MSG_RESULT("newly built gas")
1552 AC_MSG_RESULT($gcc_cv_as)
1556 # Identify the linker which will work hand-in-glove with the newly
1557 # built GCC, so that we can examine its features. This is the linker
1558 # which will be driven by the driver program.
1560 # If build != host, and we aren't building gas in-tree, we identify a
1561 # build->target linker and hope that it will have the same features
1562 # as the host->target linker we'll be using.
1563 AC_MSG_CHECKING(what linker to use)
1566 gcc_cv_gld_major_version=
1567 gcc_cv_gld_minor_version=
1568 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1569 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1570 if test -x "$DEFAULT_LINKER"; then
1571 gcc_cv_ld="$DEFAULT_LINKER"
1572 elif test -x "$LD"; then
1574 elif test -x collect-ld$host_exeext; then
1575 # Build using linker in the current directory.
1576 gcc_cv_ld=./collect-ld$host_exeext
1577 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1578 && test -f ../ld/Makefile; then
1579 # Single tree build which includes ld.
1581 in_tree_ld_is_elf=no
1582 if (grep 'EMUL = .*elf' ../ld/Makefile \
1583 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1584 in_tree_ld_is_elf=yes
1586 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
1589 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1591 if test x$gcc_cv_gld_version != x; then
1596 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1597 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1599 rm -f collect-ld$host_exeext
1600 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1604 if test "x$gcc_cv_ld" = x; then
1605 # Search the same directories that the installed compiler will
1606 # search. Else we may find the wrong linker and lose. If we
1607 # do not find a suitable linker binary, then try the user's
1610 # Also note we have to check MD_EXEC_PREFIX before checking the
1611 # user's path. Unfortunately, there is no good way to get at the
1612 # value of MD_EXEC_PREFIX here. So we do a brute force search
1613 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1614 # to be fixed as part of the make/configure rewrite too.
1616 if test "x$exec_prefix" = xNONE; then
1617 if test "x$prefix" = xNONE; then
1618 test_prefix=/usr/local
1623 test_prefix=$exec_prefix
1626 # If the loop below does not find an linker, then use whatever
1627 # one we can find in the users's path.
1629 if test "x$program_prefix" != xNONE; then
1630 gcc_cv_ld=${program_prefix}ld$host_exeext
1632 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1635 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1636 $test_prefix/lib/gcc-lib/$target_alias \
1637 /usr/lib/gcc/$target_alias/$gcc_version \
1638 /usr/lib/gcc/$target_alias \
1639 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1640 $test_prefix/$target_alias/bin"
1642 if test x$host = x$target; then
1643 test_dirs="$test_dirs \
1648 /bsd43/usr/lib/cmplrs/cc \
1649 /usr/cross64/usr/bin \
1650 /usr/lib/cmplrs/cc \
1651 /sysv/usr/lib/cmplrs/cc \
1652 /svr4/usr/lib/cmplrs/cc \
1656 for dir in $test_dirs; do
1657 if test -x $dir/ld$host_exeext; then
1658 gcc_cv_ld=$dir/ld$host_exeext
1665 AC_MSG_RESULT("newly built ld")
1668 AC_MSG_RESULT($gcc_cv_ld)
1672 # Figure out what nm we will be using.
1673 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1674 AC_MSG_CHECKING(what nm to use)
1676 if test -x nm$host_exeext; then
1677 gcc_cv_nm=./nm$host_exeext
1678 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1679 && test -f ../binutils/Makefile; then
1680 # Single tree build which includes binutils.
1682 gcc_cv_nm=./nm$host_exeext
1683 rm -f nm$host_exeext
1684 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1685 elif test "x$program_prefix" != xNONE; then
1686 gcc_cv_nm=${program_prefix}nm$host_exeext
1688 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1691 yes) AC_MSG_RESULT("newly built nm") ;;
1692 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1695 # Figure out what objdump we will be using.
1696 AC_MSG_CHECKING(what objdump to use)
1698 if test -x objdump$host_exeext; then
1699 gcc_cv_objdump=./objdump$host_exeext
1700 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1701 && test -f ../binutils/Makefile; then
1702 # Single tree build which includes binutils.
1704 gcc_cv_objdump=./objdump$host_exeext
1705 rm -f objdump$host_exeext
1706 $symbolic_link ../binutils/objdump$host_exeext \
1707 objdump$host_exeext 2>/dev/null
1708 elif test "x$program_prefix" != xNONE; then
1709 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1711 gcc_cv_objdump=`echo objdump | \
1712 sed ${program_transform_name}`$host_exeext
1714 case $in_tree_objdump in
1715 yes) AC_MSG_RESULT("newly built objdump") ;;
1716 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1719 # Figure out what assembler alignment features are present.
1720 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1724 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1725 [Define if your assembler supports .balign and .p2align.])])
1727 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1730 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1731 [Define if your assembler supports specifying the maximum number
1732 of bytes to skip when using the GAS .p2align command.])])
1734 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1736 [conftest_label1: .word 0
1738 conftest_label2: .word 0
1740 [if test x$gcc_cv_nm != x; then
1741 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1742 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1743 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1745 else gcc_cv_as_subsection_m1=yes
1747 rm -f conftest.nm1 conftest.nm2
1749 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1750 [Define if your assembler supports .subsection and .subsection -1 starts
1751 emitting at the beginning of your section.])])
1753 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1756 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1758 # .hidden needs to be supported in both the assembler and the linker,
1759 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1760 # This is irritatingly difficult to feature test for; we have to check the
1761 # date string after the version number. If we've got an in-tree
1762 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1764 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1765 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1770 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1771 [if test $in_tree_ld = yes ; then
1773 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1774 && test $in_tree_ld_is_elf = yes; then
1775 gcc_cv_ld_hidden=yes
1778 gcc_cv_ld_hidden=yes
1779 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1780 if echo "$ld_ver" | grep GNU > /dev/null; then
1782 ld_vers=`echo $ld_ver | sed -n \
1783 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1784 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1785 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1786 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1787 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1788 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1789 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1790 if test 0"$ld_date" -lt 20020404; then
1791 if test -n "$ld_date"; then
1792 # If there was date string, but was earlier than 2002-04-04, fail
1794 elif test -z "$ld_vers"; then
1795 # If there was no date string nor ld version number, something is wrong
1798 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1799 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1800 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1801 test -z "$ld_vers_patch" && ld_vers_patch=0
1802 if test "$ld_vers_major" -lt 2; then
1804 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1805 gcc_cv_ld_hidden="no"
1806 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1814 mips-sgi-irix[[56]]*)
1815 if test x"$gnu_ld_flag" = x"no"; then
1816 # Even if using gas with .hidden support, the resulting object files
1817 # cannot be linked with the IRIX 5 and IRIX 6 O32 linkers. With
1818 # the IRIX 6 N32 and N64 linkers, the problem is that the linker
1819 # refuses to accept -call_shared (passed by default to the
1820 # linker) and -r (used to link the object file generated without
1821 # .hidden directives with one that hides symbols), so we also lose.
1828 libgcc_visibility=no
1829 AC_SUBST(libgcc_visibility)
1830 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
1831 libgcc_visibility=yes
1832 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1833 [Define if your assembler and linker support .hidden.])
1836 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1837 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1845 [# GAS versions before 2.11 do not support uleb128,
1846 # despite appearing to.
1847 # ??? There exists an elf-specific test that will crash
1848 # the assembler. Perhaps it's better to figure out whether
1849 # arbitrary sections are supported and try the test.
1850 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1851 if echo "$as_ver" | grep GNU > /dev/null; then
1853 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1854 as_major=`echo $as_ver | sed 's/\..*//'`
1855 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1857 if test $as_major -eq 2 && test $as_minor -lt 11
1859 else gcc_cv_as_leb128=yes
1862 [AC_DEFINE(HAVE_AS_LEB128, 1,
1863 [Define if your assembler supports .sleb128 and .uleb128.])])
1865 # GAS versions up to and including 2.11.0 may mis-optimize
1867 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
1875 .section .eh_frame,"aw",@progbits
1877 .4byte .LECIE1-.LSCIE1
1891 .4byte .LEFDE1-.LASFDE1
1893 .4byte .LASFDE1-__FRAME_BEGIN__
1901 [ cat > conftest.lit <<EOF
1902 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1903 0010 01000000 12000000 18000000 00000000 ................
1904 0020 08000000 04080000 0044 .........D
1906 cat > conftest.big <<EOF
1907 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1908 0010 00000001 00000012 00000018 00000000 ................
1909 0020 00000008 04000000 0844 .........D
1911 # If the assembler didn't choke, and we can objdump,
1912 # and we got the correct data, then succeed.
1913 if test x$gcc_cv_objdump != x \
1914 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1915 | tail -3 > conftest.got \
1916 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1917 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1919 gcc_cv_as_eh_frame=yes
1920 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
1921 gcc_cv_as_eh_frame=buggy
1923 # Uh oh, what do we do now?
1924 gcc_cv_as_eh_frame=no
1927 if test $gcc_cv_as_eh_frame = buggy; then
1928 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1929 [Define if your assembler mis-optimizes .eh_frame data.])
1932 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
1933 [elf,2,12,0], [--fatal-warnings],
1934 [.section .rodata.str, "aMS", @progbits, 1],,
1935 [AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1936 [Define if your assembler supports marking sections with SHF_MERGE flag.])])
1938 # Thread-local storage - the check is heavily parametrized.
1947 .section ".tdata","awT",@progbits
1950 ldq $27,__tls_get_addr($29) !literal!1
1951 lda $16,foo($29) !tlsgd!1
1952 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
1953 ldq $27,__tls_get_addr($29) !literal!2
1954 lda $16,foo($29) !tlsldm!2
1955 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
1956 ldq $1,foo($29) !gotdtprel
1957 ldah $2,foo($29) !dtprelhi
1958 lda $3,foo($2) !dtprello
1959 lda $4,foo($29) !dtprel
1960 ldq $1,foo($29) !gottprel
1961 ldah $2,foo($29) !tprelhi
1962 lda $3,foo($2) !tprello
1963 lda $4,foo($29) !tprel'
1970 .section ".tdata","awT",@progbits
1974 leal foo@TLSGD(,%ebx,1), %eax
1975 leal foo@TLSLDM(%ebx), %eax
1976 leal foo@DTPOFF(%eax), %edx
1977 movl foo@GOTTPOFF(%ebx), %eax
1978 subl foo@GOTTPOFF(%ebx), %eax
1979 addl foo@GOTNTPOFF(%ebx), %eax
1980 movl foo@INDNTPOFF, %eax
1981 movl $foo@TPOFF, %eax
1982 subl $foo@TPOFF, %eax
1983 leal foo@NTPOFF(%ecx), %eax'
1989 .section ".tdata","awT",@progbits
1993 leaq foo@TLSGD(%rip), %rdi
1994 leaq foo@TLSLD(%rip), %rdi
1995 leaq foo@DTPOFF(%rax), %rdx
1996 movq foo@GOTTPOFF(%rip), %rax
1997 movq $foo@TPOFF, %rax'
2003 .section ".tdata","awT",@progbits
2006 addl r16 = @ltoff(@dtpmod(foo#)), gp
2007 addl r17 = @ltoff(@dtprel(foo#)), gp
2008 addl r18 = @ltoff(@tprel(foo#)), gp
2009 addl r19 = @dtprel(foo#), gp
2010 adds r21 = @dtprel(foo#), r13
2011 movl r23 = @dtprel(foo#)
2012 addl r20 = @tprel(foo#), gp
2013 adds r22 = @tprel(foo#), r13
2014 movl r24 = @tprel(foo#)'
2020 .section ".tdata","awT",@progbits
2028 addi 3,31,ld0@got@tlsgd
2030 addi 3,31,x1@got@tlsld
2033 addis 9,3,x2@dtprel@ha
2034 addi 9,9,x2@dtprel@l
2035 lwz 9,x3@got@tprel(31)
2038 addis 9,2,x2@tprel@ha
2039 addi 9,9,x2@tprel@l'
2046 .section ".tdata","awT",@progbits
2054 addi 3,2,ld0@got@tlsgd
2060 addi 3,2,x1@got@tlsld
2066 addis 9,3,x2@dtprel@ha
2067 addi 9,9,x2@dtprel@l
2070 ld 9,x3@got@dtprel(2)
2080 .section ".tdata","awT",@progbits
2089 l %r1,foo@GOTNTPOFF(%r12)
2090 l %r1,0(%r1):tls_load:foo
2091 bas %r14,0(%r1,%r13):tls_gdcall:foo
2092 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2099 .section ".tdata","awT",@progbits
2107 lg %r1,foo@GOTNTPOFF(%r12)
2108 larl %r1,foo@INDNTPOFF
2109 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2110 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2113 tls_as_opt="-m64 -Aesame"
2116 if test -z "$tls_first_major"; then
2117 : # If we don't have a check, assume no support.
2119 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2120 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt --fatal-warnings],
2122 [AC_DEFINE(HAVE_AS_TLS, 1,
2123 [Define if your assembler supports thread-local storage.])])
2126 # Target-specific assembler checks.
2129 # All TARGET_ABI_OSF targets.
2130 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2131 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2132 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2135 extbl $3, $2, $3 !lituse_bytoff!1
2136 ldq $2, a($29) !literal!1
2137 ldq $4, b($29) !literal!2
2138 ldq_u $3, 0($2) !lituse_base!1
2139 ldq $27, f($29) !literal!5
2140 jsr $26, ($27), f !lituse_jsr!5
2141 ldah $29, 0($26) !gpdisp!3
2142 lda $0, c($29) !gprel
2143 ldah $1, d($29) !gprelhigh
2144 lda $1, d($1) !gprellow
2145 lda $29, 0($29) !gpdisp!3],,
2146 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2147 [Define if your assembler supports explicit relocations.])])
2151 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2152 [.register %g2, #scratch],,
2153 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2154 [Define if your assembler supports .register.])])
2156 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2158 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2159 [Define if your assembler supports -relax option.])])
2161 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2162 gcc_cv_as_sparc_ua_pcrel,,
2170 .uaword %r_disp32(foo)],
2171 [if test x$gcc_cv_ld != x \
2172 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2173 gcc_cv_as_sparc_ua_pcrel=yes
2176 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2177 [Define if your assembler and linker support unaligned PC relative relocs.])
2179 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2180 gcc_cv_as_sparc_ua_pcrel_hidden,,
2185 .uaword %r_disp32(foo)
2186 .byte 0x32, 0x33, 0x34
2191 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2192 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2193 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2194 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2195 if $gcc_cv_objdump -R conftest 2> /dev/null \
2196 | grep 'DISP32' > /dev/null 2>&1; then
2199 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2203 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2204 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2205 ]) # unaligned pcrel relocs
2207 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2208 gcc_cv_as_sparc_offsetable_lo10,,
2211 or %g1, %lo(ab) + 12, %g1
2212 or %g1, %lo(ab + 12), %g1],
2213 [if test x$gcc_cv_objdump != x \
2214 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2215 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2216 gcc_cv_as_offsetable_lo10=yes
2218 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2219 [Define if your assembler supports offsetable %lo().])])
2223 i[34567]86-*-* | x86_64-*-*)
2225 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2226 gcc_cv_as_ix86_filds_fists,
2227 [2,9,0],, [filds mem; fists mem],,
2228 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2229 [Define if your assembler uses the new HImode fild and fist notation.])])
2231 # This one is used unconditionally by i386.[ch]; it is to be defined
2232 # to 1 if the feature is present, 0 otherwise.
2233 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2234 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2240 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2241 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2242 [Define true if the assembler supports '.long foo@GOTOFF'.])
2246 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2247 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2249 addl r15 = @ltoffx(x#), gp
2251 ld8.mov r16 = [[r15]], x#],,
2252 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2253 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2259 *-*-aix) conftest_s=' .csect .text[PR]';;
2260 *) conftest_s=' .text';;
2262 conftest_s="$conftest_s
2265 gcc_GAS_CHECK_FEATURE([mfcr field support],
2266 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2268 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2269 [Define if your assembler supports mfcr field.])])
2273 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2274 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2275 [ lw $4,%gp_rel(foo)($4)],,
2276 [if test x$target_cpu_default = x
2277 then target_cpu_default=MASK_EXPLICIT_RELOCS
2278 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2283 # ??? Not all targets support dwarf2 debug_line, even within a version
2284 # of gas. Moreover, we need to emit a valid instruction to trigger any
2285 # info to the output file. So, as supported targets are added to gas 2.11,
2286 # add some instruction here to (also) show we expect this might work.
2287 # ??? Once 2.11 is released, probably need to add first known working
2288 # version to the per-target configury.
2290 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2291 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2292 | xstormy16*-*-* | cris-*-*)
2302 if test x"$insn" != x; then
2304 .file 1 \"conftest.s\"
2307 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2308 gcc_cv_as_dwarf2_debug_line,
2309 [elf,2,11,0],, [$conftest_s],
2310 [# ??? This fails with non-gnu grep. Maybe use objdump?
2311 if grep debug_line conftest.o > /dev/null 2>&1; then
2312 gcc_cv_as_dwarf2_debug_line=yes
2315 # The .debug_line file table must be in the exact order that
2316 # we specified the files, since these indices are also used
2317 # by DW_AT_decl_file. Approximate this test by testing if
2318 # the assembler bitches if the same index is assigned twice.
2319 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2320 gcc_cv_as_dwarf2_file_buggy,,,
2324 if test $gcc_cv_as_dwarf2_debug_line = yes \
2325 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2326 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2327 [Define if your assembler supports dwarf2 .file/.loc directives,
2328 and preserves file table indices exactly as given.])
2331 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2332 gcc_cv_as_gdwarf2_flag,
2333 [elf,2,11,0], [--gdwarf2], [$insn],,
2334 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2335 [Define if your assembler supports the --gdwarf2 option.])])
2337 gcc_GAS_CHECK_FEATURE([--gstabs option],
2338 gcc_cv_as_gstabs_flag,
2339 [elf,2,11,0], [--gstabs], [$insn],
2340 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2341 # and warns about it, but still exits successfully. So check for
2343 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2345 else gcc_cv_as_gstabs_flag=yes
2347 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2348 [Define if your assembler supports the --gstabs option.])])
2351 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2352 gcc_cv_ld_ro_rw_mix=unknown
2353 if test $in_tree_ld = yes ; then
2354 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2355 && test $in_tree_ld_is_elf = yes; then
2356 gcc_cv_ld_ro_rw_mix=read-write
2358 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2359 echo '.section myfoosect, "a"' > conftest1.s
2360 echo '.section myfoosect, "aw"' > conftest2.s
2361 echo '.byte 1' >> conftest2.s
2362 echo '.section myfoosect, "a"' > conftest3.s
2363 echo '.byte 0' >> conftest3.s
2364 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2365 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2366 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2367 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2368 conftest2.o conftest3.o > /dev/null 2>&1; then
2369 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2370 | sed -e '/myfoosect/!d' -e N`
2371 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2372 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2373 gcc_cv_ld_ro_rw_mix=read-only
2375 gcc_cv_ld_ro_rw_mix=read-write
2380 rm -f conftest.* conftest[123].*
2383 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2384 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2385 [Define if your linker links a mix of read-only
2386 and read-write sections into a read-write section.])
2388 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2390 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2391 gcc_cv_ld_eh_frame_hdr=no
2392 if test $in_tree_ld = yes ; then
2393 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2394 && test $in_tree_ld_is_elf = yes; then
2395 gcc_cv_ld_eh_frame_hdr=yes
2397 elif test x$gcc_cv_ld != x; then
2398 # Check if linker supports --eh-frame-hdr option
2399 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2400 gcc_cv_ld_eh_frame_hdr=yes
2403 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2404 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2405 [Define if your linker supports --eh-frame-hdr option.])
2407 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2409 AC_MSG_CHECKING(linker position independent executable support)
2411 if test $in_tree_ld = yes ; then
2412 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2413 && test $in_tree_ld_is_elf = yes; then
2416 elif test x$gcc_cv_ld != x; then
2417 # Check if linker supports -pie option
2418 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2422 if test x"$gcc_cv_ld_pie" = xyes; then
2423 AC_DEFINE(HAVE_LD_PIE, 1,
2424 [Define if your linker supports -pie option.])
2426 AC_MSG_RESULT($gcc_cv_ld_pie)
2428 # Miscellaneous target-specific checks.
2431 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2432 gcc_cv_mips_libgloss_startup=no
2433 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2434 if test "x$exec_prefix" = xNONE; then
2435 if test "x$prefix" = xNONE; then
2436 test_prefix=/usr/local
2441 test_prefix=$exec_prefix
2443 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2445 if grep '^STARTUP' $f > /dev/null 2>&1; then
2446 gcc_cv_mips_libgloss_startup=yes
2450 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2451 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2452 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2454 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2458 if test x$with_sysroot = x && test x$host = x$target \
2459 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2460 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2461 [Define to PREFIX/include if cpp should also search that directory.])
2464 # Figure out what language subdirectories are present.
2465 # Look if the user specified --enable-languages="..."; if not, use
2466 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2468 # NB: embedded tabs in this IF block -- do not untabify
2469 if test x"${enable_languages+set}" != xset; then
2470 if test x"${LANGUAGES+set}" = xset; then
2471 enable_languages="${LANGUAGES}"
2472 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2475 enable_languages=all
2478 if test x"${enable_languages}" = x \
2479 || test x"${enable_languages}" = xyes;
2481 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2484 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2486 # First scan to see if an enabled language requires some other language.
2487 # We assume that a given config-lang.in will list all the language
2488 # front ends it requires, even if some are required indirectly.
2489 for lang in ${srcdir}/*/config-lang.in ..
2494 # The odd quoting in the next line works around
2495 # an apparent bug in bash 1.12 on linux.
2497 ${srcdir}/[*]/config-lang.in)
2500 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2501 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2502 for other in $this_lang_requires
2504 case ,${enable_languages}, in
2510 enable_languages="$enable_languages,$other"
2519 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2522 for lang in ${srcdir}/*/config-lang.in ..
2526 # The odd quoting in the next line works around
2527 # an apparent bug in bash 1.12 on linux.
2529 ${srcdir}/[*]/config-lang.in) ;;
2531 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2532 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2533 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2534 if test "x$lang_alias" = x
2536 echo "$lang doesn't set \$language." 1>&2
2539 case ${build_by_default},${enable_languages}, in
2540 *,$lang_alias,*) add_this_lang=yes ;;
2541 no,*) add_this_lang=no ;;
2542 *,all,*) add_this_lang=yes ;;
2543 *) add_this_lang=no ;;
2545 found_languages="${found_languages} ${lang_alias}"
2546 if test x"${add_this_lang}" = xyes; then
2548 ${srcdir}/ada/config-lang.in)
2549 if test x$have_gnat = xyes ; then
2550 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2554 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2564 for expected_language in ${expected_languages} ..
2566 if test "${expected_language}" != ..; then
2567 missing_language="${expected_language}"
2568 if test "${expected_language}" = "c" \
2569 || test "${expected_language}" = "all"; then
2572 for found_language in ${found_languages} ..
2574 if test "${found_language}" != ..; then
2575 if test "${expected_language}" = "${found_language}"; then
2580 if test "x${missing_language}" != x; then
2581 missing_languages="${missing_languages} ${missing_language}"
2586 if test "x$missing_languages" != x; then
2588 The following requested languages were not found:${missing_languages}
2589 The following languages were available: c${found_languages}])
2592 # Make gthr-default.h if we have a thread file.
2594 if test $thread_file != single; then
2595 rm -f gthr-default.h
2596 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2597 gthread_flags=-DHAVE_GTHR_DEFAULT
2599 AC_SUBST(gthread_flags)
2601 # Find out what GC implementation we want, or may, use.
2603 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2610 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2615 echo "Using $GGC for garbage collection."
2617 # Use the system's zlib library.
2619 zlibinc="-I\$(srcdir)/../zlib"
2620 AC_ARG_WITH(system-zlib,
2621 [ --with-system-zlib use installed libz],
2628 dnl Very limited version of automake's enable-maintainer-mode
2630 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2631 dnl maintainer-mode is disabled by default
2632 AC_ARG_ENABLE(maintainer-mode,
2633 [ --enable-maintainer-mode
2634 enable make rules and dependencies not useful
2635 (and sometimes confusing) to the casual installer],
2636 maintainer_mode=$enableval,
2639 AC_MSG_RESULT($maintainer_mode)
2641 if test "$maintainer_mode" = "yes"; then
2648 # Make empty files to contain the specs and options for each language.
2649 # Then add #include lines to for a compiler that has specs and/or options.
2654 for subdir in . $subdirs
2656 if test -f $srcdir/$subdir/lang.opt; then
2657 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2659 if test -f $srcdir/$subdir/lang-specs.h; then
2660 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2662 if test -f $srcdir/$subdir/$subdir-tree.def; then
2663 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2667 # These (without "all_") are set in each config-lang.in.
2668 # `language' must be a single word so is spelled singularly.
2673 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2674 # List of language makefile fragments.
2676 # Files for gengtype
2677 all_gtfiles="$target_gtfiles"
2678 # Files for gengtype with language
2679 all_gtfiles_files_langs=
2680 all_gtfiles_files_files=
2682 # Add the language fragments.
2683 # Languages are added via two mechanisms. Some information must be
2684 # recorded in makefile variables, these are defined in config-lang.in.
2685 # We accumulate them and plug them into the main Makefile.
2686 # The other mechanism is a set of hooks for each of the main targets
2687 # like `clean', `install', etc.
2689 language_fragments="Make-lang"
2690 language_hooks="Make-hooks"
2692 for s in .. $subdirs
2702 . ${srcdir}/$s/config-lang.in
2703 if test "x$language" = x
2705 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2708 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2709 if test -f ${srcdir}/$s/Makefile.in
2710 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2712 all_languages="$all_languages $language"
2713 if test "x$boot_language" = xyes
2715 all_boot_languages="$all_boot_languages $language"
2717 all_compilers="$all_compilers $compilers"
2718 all_stagestuff="$all_stagestuff $stagestuff"
2719 all_outputs="$all_outputs $outputs"
2720 all_gtfiles="$all_gtfiles $gtfiles"
2721 for f in .. $gtfiles
2725 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2726 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2732 # Pick up gtfiles for c
2735 . ${srcdir}/c-config-lang.in
2736 all_gtfiles="$all_gtfiles $gtfiles"
2737 for f in .. $gtfiles
2741 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2742 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2747 for language in .. $all_languages
2749 if test $language != ".."
2751 check_languages="$check_languages check-$language"
2755 # Since we can't use `::' targets, we link each language in
2756 # with a set of hooks, reached indirectly via lang.${target}.
2760 target_list="all.build all.cross start.encap rest.encap tags \
2761 info dvi generated-manpages \
2762 install-normal install-common install-info install-man \
2764 mostlyclean clean distclean extraclean maintainer-clean \
2765 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2766 for t in $target_list
2769 for lang in .. $all_languages
2771 if test $lang != ".."; then
2775 echo "lang.$t: $x" >> Make-hooks
2780 echo "dir ." > .gdbinit
2781 echo "dir ${srcdir}" >> .gdbinit
2782 if test x$gdb_needs_out_file_path = xyes
2784 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2786 if test "x$subdirs" != x; then
2789 echo "dir ${srcdir}/$s" >> .gdbinit
2792 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2794 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2795 # absolute path for gcc_tooldir based on inserting the number of up-directory
2796 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2797 # $(libsubdir)/@(unlibsubdir) based path.
2798 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2799 # make and thus we'd get different behavior depending on where we built the
2801 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2802 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2804 changequote(<<, >>)dnl
2805 # An explanation of the sed strings:
2806 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2807 # -e 's|/$||' match a trailing forward slash and eliminates it
2808 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2809 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2811 # (*) Note this pattern overwrites the first character of the string
2812 # with a forward slash if one is not already present. This is not a
2813 # problem because the exact names of the sub-directories concerned is
2814 # unimportant, just the number of them matters.
2816 # The practical upshot of these patterns is like this:
2818 # prefix exec_prefix result
2819 # ------ ----------- ------
2821 # /foo/ /foo/bar ../
2822 # /foo /foo/bar/ ../
2823 # /foo/ /foo/bar/ ../
2824 # /foo /foo/bar/ugg ../../
2827 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2828 changequote([, ])dnl
2830 AC_SUBST(gcc_tooldir)
2833 # Find a directory in which to install a shared libgcc.
2835 AC_ARG_ENABLE(version-specific-runtime-libs,
2836 [ --enable-version-specific-runtime-libs
2837 specify that runtime libraries should be
2838 installed in a compiler-specific directory])
2840 AC_ARG_WITH(slibdir,
2841 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2842 slibdir="$with_slibdir",
2843 if test "${enable_version_specific_runtime_libs+set}" = set; then
2844 slibdir='$(libsubdir)'
2845 elif test "$host" != "$target"; then
2846 slibdir='$(build_tooldir)/lib'
2852 objdir=`${PWDCMD-pwd}`
2855 # Process the language and host/target makefile fragments.
2856 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2858 # Substitute configuration variables
2861 AC_SUBST(all_boot_languages)
2862 AC_SUBST(all_compilers)
2863 AC_SUBST(all_gtfiles)
2864 AC_SUBST(all_gtfiles_files_langs)
2865 AC_SUBST(all_gtfiles_files_files)
2866 AC_SUBST(all_lang_makefiles)
2867 AC_SUBST(all_languages)
2868 AC_SUBST(all_stagestuff)
2869 AC_SUBST(build_exeext)
2870 AC_SUBST(build_install_headers_dir)
2871 AC_SUBST(build_xm_file_list)
2872 AC_SUBST(build_xm_file)
2873 AC_SUBST(build_xm_defines)
2874 AC_SUBST(check_languages)
2875 AC_SUBST(cc_set_by_configure)
2876 AC_SUBST(quoted_cc_set_by_configure)
2877 AC_SUBST(cpp_install_dir)
2878 AC_SUBST(dep_host_xmake_file)
2879 AC_SUBST(dep_tmake_file)
2880 AC_SUBST(extra_headers_list)
2881 AC_SUBST(extra_objs)
2882 AC_SUBST(extra_parts)
2883 AC_SUBST(extra_passes)
2884 AC_SUBST(extra_programs)
2885 AC_SUBST(float_h_file)
2886 AC_SUBST(gcc_config_arguments)
2887 AC_SUBST(gcc_gxx_include_dir)
2888 AC_SUBST(libstdcxx_incdir)
2889 AC_SUBST(gcc_version)
2890 AC_SUBST(gcc_version_full)
2891 AC_SUBST(gcc_version_trigger)
2892 AC_SUBST(host_exeext)
2893 AC_SUBST(host_extra_gcc_objs)
2894 AC_SUBST(host_xm_file_list)
2895 AC_SUBST(host_xm_file)
2896 AC_SUBST(host_xm_defines)
2897 AC_SUBST(out_host_hook_obj)
2899 AC_SUBST(lang_opt_files)
2900 AC_SUBST(lang_specs_files)
2901 AC_SUBST(lang_tree_files)
2902 AC_SUBST(local_prefix)
2904 AC_SUBST(objc_boehm_gc)
2906 AC_SUBST(out_object_file)
2907 AC_SUBST(stage_prefix_set_by_configure)
2908 AC_SUBST(quoted_stage_prefix_set_by_configure)
2909 AC_SUBST(symbolic_link)
2910 AC_SUBST(thread_file)
2911 AC_SUBST(tm_file_list)
2913 AC_SUBST(tm_defines)
2914 AC_SUBST(tm_p_file_list)
2917 AC_SUBST(xm_defines)
2918 AC_SUBST(target_alias)
2919 AC_SUBST(c_target_objs)
2920 AC_SUBST(cxx_target_objs)
2921 AC_SUBST(target_cpu_default)
2923 AC_SUBST_FILE(target_overrides)
2924 AC_SUBST_FILE(host_overrides)
2925 AC_SUBST_FILE(language_fragments)
2926 AC_SUBST_FILE(language_hooks)
2928 # Echo that links are built
2929 if test x$host = x$target
2937 if test x$host != x$build
2939 str3=" on a $build system"
2942 if test "x$str2" != x || test "x$str3" != x
2947 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2949 if test "x$str2" != x || test "x$str3" != x
2951 echo " ${str2}${str3}." 1>&2
2954 # Configure the subdirectories
2955 # AC_CONFIG_SUBDIRS($subdirs)
2957 # Create the Makefile
2958 # and configure language subdirectories
2959 AC_OUTPUT($all_outputs,
2961 case x$CONFIG_HEADERS in
2962 xauto-host.h:config.in)
2965 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2966 # bootstrapping and the installation procedure can still use
2967 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2968 # FLAGS_TO_PASS has been modified to solve the problem there.
2969 # This is virtually a duplicate of what happens in configure.lang; we do
2970 # an extra check to make sure this only happens if ln -s can be used.
2971 if test "$symbolic_link" = "ln -s"; then
2972 for d in .. ${subdirs} fixinc ; do
2973 if test $d != ..; then
2974 STARTDIR=`${PWDCMD-pwd}`
2976 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
2979 $symbolic_link ../$t $t 2>/dev/null
2987 symbolic_link='$symbolic_link'