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"])
253 # sizeof(char) is 1 by definition.
254 AC_COMPILE_CHECK_SIZEOF(short)
255 AC_COMPILE_CHECK_SIZEOF(int)
256 AC_COMPILE_CHECK_SIZEOF(long)
257 if test $ac_cv_c_long_long = yes; then
258 AC_COMPILE_CHECK_SIZEOF(long long)
260 if test $ac_cv_c___int64 = yes; then
261 AC_COMPILE_CHECK_SIZEOF(__int64)
270 # See if GNAT has been installed
273 if test x$have_gnat != xno ; then
274 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
275 ac_cv_prog_adac_no_long_long,
276 [cat >conftest.adb <<EOF
277 procedure conftest is begin null; end conftest;
279 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
280 ac_cv_prog_adac_no_long_long=yes
282 ac_cv_prog_adac_no_long_long=no
286 ac_cv_prog_adac_no_long_long=yes
289 # ---------------------
290 # Warnings and checking
291 # ---------------------
294 if test $ac_cv_prog_cc_no_long_long = yes && \
295 test $ac_cv_prog_adac_no_long_long = yes ; then
296 strict1_warn="-pedantic -Wno-long-long"
298 AC_SUBST(strict1_warn)
300 # If the native compiler is GCC, we can enable warnings even in stage1.
301 # That's useful for people building cross-compilers, or just running a
304 if test "x$GCC" = "xyes"; then
305 warn_cflags='$(GCC_WARN_CFLAGS)'
307 AC_SUBST(warn_cflags)
309 # Enable -Werror in bootstrap stage2 and later.
310 # Change the default to "no" on release branches.
311 AC_ARG_ENABLE(werror,
312 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
314 if test x$enable_werror = xyes ; then
319 # Enable expensive internal checks
320 AC_ARG_ENABLE(checking,
321 [ --enable-checking[=LIST]
322 enable expensive run-time checks. With LIST,
323 enable only specific categories of checks.
324 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
325 default is misc,tree,gc,rtlflag],
331 ac_gc_always_collect=
332 case "${enableval}" in
333 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
334 ac_rtlflag_checking=1 ;;
336 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
337 set fnord $enableval; shift
342 misc) ac_checking=1 ;;
343 tree) ac_tree_checking=1 ;;
344 rtlflag) ac_rtlflag_checking=1 ;;
345 rtl) ac_rtl_checking=1 ;;
346 gc) ac_gc_checking=1 ;;
347 gcac) ac_gc_always_collect=1 ;;
348 valgrind) ac_checking_valgrind=1 ;;
349 *) AC_MSG_ERROR(unknown check category $check) ;;
355 # Enable some checks by default for development versions of GCC
356 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
358 if test x$ac_checking != x ; then
359 AC_DEFINE(ENABLE_CHECKING, 1,
360 [Define if you want more run-time sanity checks. This one gets a grab
361 bag of miscellaneous but relatively cheap checks.])
362 nocommon_flag=-fno-common
364 AC_SUBST(nocommon_flag)
365 if test x$ac_tree_checking != x ; then
366 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
367 [Define if you want all operations on trees (the basic data
368 structure of the front ends) to be checked for dynamic type safety
369 at runtime. This is moderately expensive.])
371 if test x$ac_rtl_checking != x ; then
372 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
373 [Define if you want all operations on RTL (the basic data structure
374 of the optimizer and back end) to be checked for dynamic type safety
375 at runtime. This is quite expensive.])
377 if test x$ac_rtlflag_checking != x ; then
378 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
379 [Define if you want RTL flag accesses to be checked against the RTL
380 codes that are supported for each access macro. This is relatively
383 if test x$ac_gc_checking != x ; then
384 AC_DEFINE(ENABLE_GC_CHECKING, 1,
385 [Define if you want the garbage collector to do object poisoning and
386 other memory allocation checks. This is quite expensive.])
388 if test x$ac_gc_always_collect != x ; then
389 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
390 [Define if you want the garbage collector to operate in maximally
391 paranoid mode, validating the entire heap and collecting garbage at
392 every opportunity. This is extremely expensive.])
394 valgrind_path_defines=
396 if test x$ac_checking_valgrind != x ; then
397 # It is certainly possible that there's valgrind but no valgrind.h.
398 # GCC relies on making annotations so we must have both.
399 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
401 [#include <memcheck.h>
402 #ifndef VALGRIND_DISCARD
403 #error VALGRIND_DISCARD not defined
405 [gcc_cv_header_memcheck_h=yes],
406 gcc_cv_header_memcheck_h=no)
407 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
408 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
409 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
410 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
411 if test "x$valgrind_path" = "x" || (test $have_valgrind_h = no && test $gcc_cv_header_memcheck_h = no); then
412 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h/memcheck.h])
414 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
415 valgrind_command="$valgrind_path -q"
416 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
417 [Define if you want to run subprograms and generated programs
418 through valgrind (a memory checker). This is extremely expensive.])
419 if test $gcc_cv_header_memcheck_h = yes; then
420 AC_DEFINE(HAVE_MEMCHECK_H, 1,
421 [Define if valgrind's memcheck.h header is installed.])
424 AC_SUBST(valgrind_path_defines)
425 AC_SUBST(valgrind_command)
427 # Enable code coverage collection
428 AC_ARG_ENABLE(coverage,
429 [ --enable-coverage[=LEVEL]
430 enable compiler\'s code coverage collection.
431 Use to measure compiler performance and locate
432 unused parts of the compiler. With LEVEL, specify
433 optimization. Values are opt, noopt,
435 [case "${enableval}" in
437 coverage_flags="-fprofile-arcs -ftest-coverage -O0 -DSELF_COVERAGE=1"
440 coverage_flags="-fprofile-arcs -ftest-coverage -O2 -DSELF_COVERAGE=2"
443 AC_MSG_ERROR(unknown coverage setting $enableval)
447 AC_SUBST(coverage_flags)
449 # -------------------------------
450 # Miscenalleous configure options
451 # -------------------------------
455 [ --with-stabs arrange to use stabs instead of host debug format],
461 [ --with-elf arrange to use ELF instead of host debug format],
465 # Determine whether or not multilibs are enabled.
466 AC_ARG_ENABLE(multilib,
467 [ --enable-multilib enable library support for multiple ABIs],
468 [], [enable_multilib=yes])
469 AC_SUBST(enable_multilib)
471 # Enable __cxa_atexit for C++.
472 AC_ARG_ENABLE(__cxa_atexit,
473 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
476 # Enable Multibyte Characters for C/C++
477 AC_ARG_ENABLE(c-mbchar,
478 [ --enable-c-mbchar enable multibyte characters for C and C++],
479 if test x$enable_c_mbchar != xno; then
480 AC_DEFINE(MULTIBYTE_CHARS, 1,
481 [Define if you want the C and C++ compilers to support multibyte
482 character sets for source code.])
486 # Pass with no value to take the default
487 # Pass with a value to specify a thread package
488 AC_ARG_ENABLE(threads,
489 [ --enable-threads enable thread usage for target GCC
490 --enable-threads=LIB use LIB thread package for target GCC],,
493 enable_threads_flag=$enable_threads
494 # Check if a valid thread package
495 case x${enable_threads_flag} in
498 target_thread_file='single'
502 target_thread_file=''
504 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
505 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix | xgnat)
506 target_thread_file=$enable_threads_flag
509 echo "$enable_threads is an unknown thread package" 1>&2
514 AC_ARG_ENABLE(objc-gc,
515 [ --enable-objc-gc enable the use of Boehm's garbage collector with
516 the GNU Objective-C runtime],
517 if test x$enable_objc_gc = xno; then
525 [ --with-dwarf2 force the default debug format to be DWARF 2],
526 dwarf2="$with_dwarf2",
529 AC_ARG_ENABLE(shared,
530 [ --disable-shared don't provide a shared libgcc],
532 case $enable_shared in
536 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
537 for pkg in $enableval; do
538 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
545 ], [enable_shared=yes])
546 AC_SUBST(enable_shared)
549 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
551 case ${with_sysroot} in
552 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
553 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
556 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
557 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
559 if test "x$exec_prefix" = xNONE; then
560 if test "x$prefix" = xNONE; then
561 test_prefix=/usr/local
566 test_prefix=$exec_prefix
568 case ${TARGET_SYSTEM_ROOT} in
569 "${test_prefix}"|"${test_prefix}/"*|\
570 '${exec_prefix}'|'${exec_prefix}/'*)
571 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
572 TARGET_SYSTEM_ROOT_DEFINE="$t"
577 TARGET_SYSTEM_ROOT_DEFINE=
578 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
580 AC_SUBST(TARGET_SYSTEM_ROOT)
581 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
582 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
584 # -------------------------
585 # Checks for other programs
586 # -------------------------
590 # Find some useful tools
597 # See if we have the mktemp command.
598 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
600 # Do we have a single-tree copy of texinfo?
601 if test -f $srcdir/../texinfo/Makefile.in; then
602 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
603 gcc_cv_prog_makeinfo_modern=yes
604 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
606 # See if makeinfo has been installed and is modern enough
607 # that we can use it.
608 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
609 [GNU texinfo.* \([0-9][0-9.]*\)],
613 if test $gcc_cv_prog_makeinfo_modern = no; then
615 *** Makeinfo is missing or too old.
616 *** Info documentation will not be built.])
619 BUILD_INFO=info AC_SUBST(BUILD_INFO)
622 # Is pod2man recent enough to regenerate manpages?
623 AC_MSG_CHECKING([for recent Pod::Man])
624 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
626 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
632 # 'make compare' can be significantly faster, if cmp itself can
633 # skip bytes instead of using tail. The test being performed is
634 # "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
635 # but we need to sink errors and handle broken shells.
636 AC_MSG_CHECKING([for cmp's capabilities])
639 if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
640 if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
641 make_compare_target=slowcompare
643 make_compare_target=gnucompare
646 make_compare_target=slowcompare
649 AC_SUBST(make_compare_target)
650 AC_MSG_RESULT($make_compare_target)
653 dnl Don't use AC_PROG_LEX; we insist on flex.
654 dnl LEXLIB is not useful in gcc.
655 if test -f $srcdir/../flex/skel.c; then
656 FLEX='$(objdir)/../flex/flex'
658 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
662 # The -L switch is so bison can find its skeleton file.
663 if test -f $srcdir/../bison/bison.simple; then
664 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
666 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
669 # --------------------
670 # Checks for C headers
671 # --------------------
673 AC_MSG_CHECKING(for GNU C library)
674 AC_CACHE_VAL(gcc_cv_glibc,
676 [#include <features.h>],[
677 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
678 #error Not a GNU C library system
682 AC_MSG_RESULT($gcc_cv_glibc)
683 if test $gcc_cv_glibc = yes; then
684 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
689 gcc_AC_HEADER_STDBOOL
692 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
693 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
694 sys/resource.h sys/param.h sys/times.h sys/stat.h \
695 direct.h malloc.h langinfo.h ldfcn.h wchar.h)
697 # Check for thread headers.
698 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
699 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
701 # These tests can't be done till we know if we have limits.h.
709 # Stage specific cflags for build.
715 stage1_cflags="-Wa,-J"
721 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
722 # sources; use -no-cpp-precomp to get to GNU cpp.
723 # Apple's GCC has bugs in designated initializer handling, so disable
725 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
728 AC_SUBST(stage1_cflags)
730 # These libraries may be used by collect2.
731 # We may need a special search path to get them linked.
732 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
734 for libs in '' -lld -lmld \
735 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
736 '-L/usr/lib/cmplrs/cc3.11 -lmld'
739 AC_TRY_LINK_FUNC(ldopen,
740 [gcc_cv_collect2_libs="$libs"; break])
743 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
744 case $gcc_cv_collect2_libs in
746 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
748 AC_SUBST(COLLECT2_LIBS)
750 # When building Ada code on Alpha, we need exc_resume which is usually in
751 # -lexc. So test for it.
754 AC_SEARCH_LIBS(exc_resume, exc)
757 AC_SUBST(GNAT_LIBEXC)
759 # Some systems put ldexp and frexp in libm instead of libc; assume
760 # they're both in the same place. jcf-dump needs them.
763 AC_SEARCH_LIBS(ldexp, m)
768 # See if the stage1 system preprocessor understands the ANSI C
769 # preprocessor stringification operator. (Used by symcat.h.)
772 # Use <inttypes.h> only if it exists,
773 # doesn't clash with <sys/types.h>, and declares intmax_t.
774 AC_MSG_CHECKING(for inttypes.h)
775 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
777 [#include <sys/types.h>
778 #include <inttypes.h>],
780 [gcc_cv_header_inttypes_h=yes],
781 gcc_cv_header_inttypes_h=no)])
782 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
783 if test $gcc_cv_header_inttypes_h = yes; then
784 AC_DEFINE(HAVE_INTTYPES_H, 1,
785 [Define if you have a working <inttypes.h> header file.])
788 dnl Disabled until we have a complete test for buggy enum bitfields.
789 dnl gcc_AC_C_ENUM_BF_UNSIGNED
791 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
792 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
793 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
794 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore)
796 if test x$ac_cv_func_mbstowcs = xyes; then
797 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
798 [ AC_TRY_RUN([#include <stdlib.h>
804 gcc_cv_func_mbstowcs_works=yes,
805 gcc_cv_func_mbstowcs_works=no,
806 gcc_cv_func_mbstowcs_works=yes)])
807 if test x$gcc_cv_func_mbstowcs_works = xyes; then
808 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
809 [Define this macro if mbstowcs does not crash when its
810 first argument is NULL.])
814 AC_CHECK_TYPE(ssize_t, int)
816 # Try to determine the array type of the second argument of getgroups
817 # for the target system (int or gid_t).
819 if test "${target}" = "${build}"; then
820 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
823 # This condition may need some tweaking. It should include all
824 # targets where the array type of the second argument of getgroups
825 # is int and the type of gid_t is not equivalent to int.
826 *-*-sunos* | *-*-ultrix*)
827 TARGET_GETGROUPS_T=int
830 TARGET_GETGROUPS_T=gid_t
834 AC_SUBST(TARGET_GETGROUPS_T)
836 gcc_AC_FUNC_PRINTF_PTR
837 gcc_AC_FUNC_MMAP_BLACKLIST
842 *** UWIN may not be used as a host platform because
843 *** linking with posix.dll is not allowed by the GNU GPL])
846 # Under VMS, vfork works very different than on Unix. The standard test
847 # won't work, and it isn't easily adaptable. It makes more sense to
849 ac_cv_func_vfork_works=yes
856 # We will need to find libiberty.h and ansidecl.h
857 saved_CFLAGS="$CFLAGS"
858 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
859 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
860 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
861 fprintf_unlocked strstr errno vasprintf \
862 malloc realloc calloc free basename getopt clock, , ,[
863 #include "ansidecl.h"
864 #include "system.h"])
866 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
867 #include "ansidecl.h"
869 #ifdef HAVE_SYS_RESOURCE_H
870 #include <sys/resource.h>
875 #include "ansidecl.h"
877 #ifdef HAVE_SYS_RESOURCE_H
878 #include <sys/resource.h>
880 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
881 [Define to \`long' if <sys/resource.h> doesn't define.])])
883 gcc_AC_CHECK_DECLS(ldgetname, , ,[
884 #include "ansidecl.h"
891 gcc_AC_CHECK_DECLS(times, , ,[
892 #include "ansidecl.h"
894 #ifdef HAVE_SYS_TIMES_H
895 #include <sys/times.h>
899 # More time-related stuff.
900 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
902 #include "ansidecl.h"
904 #ifdef HAVE_SYS_TIMES_H
905 #include <sys/times.h>
907 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
908 if test $ac_cv_struct_tms = yes; then
909 AC_DEFINE(HAVE_STRUCT_TMS, 1,
910 [Define if <sys/times.h> defines struct tms.])
913 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
914 # revisit after autoconf 2.50.
915 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
917 #include "ansidecl.h"
919 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
920 if test $gcc_cv_type_clock_t = yes; then
921 AC_DEFINE(HAVE_CLOCK_T, 1,
922 [Define if <time.h> defines clock_t.])
925 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
927 #include "ansidecl.h"
930 [if ((uchar *)0) return 0;
931 if (sizeof(uchar)) return 0;],
932 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
933 if test $ac_cv_type_uchar = yes; then
934 AC_DEFINE(HAVE_UCHAR, 1,
935 [Define if <sys/types.h> defines \`uchar'.])
938 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
939 CFLAGS="$saved_CFLAGS"
941 gcc_AC_INITFINI_ARRAY
943 # mkdir takes a single argument on some systems.
944 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
952 # With Setjmp/Longjmp based exception handling.
953 AC_ARG_ENABLE(sjlj-exceptions,
954 [ --enable-sjlj-exceptions
955 arrange to use setjmp/longjmp exception handling],
956 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
957 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
958 [Define 0/1 to force the choice for exception handling model.])])
960 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
961 # Use libunwind based exception handling.
962 AC_ARG_ENABLE(libunwind-exceptions,
963 [ --enable-libunwind-exceptions force use libunwind for exceptions],
964 use_libunwind_exceptions=$enableval,
965 use_libunwind_exceptions=$use_libunwind_default)
966 if test x"$use_libunwind_exceptions" = xyes; then
967 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
968 [Define if gcc should use -lunwind.])
971 # --------------------------------------------------------
972 # Build, host, and target specific configuration fragments
973 # --------------------------------------------------------
978 build_install_headers_dir=install-headers-tar
985 # Decode the host machine, then the target machine.
986 # For the host machine, we save the xm_file variable as host_xm_file;
987 # then we decode the target machine and forget everything else
988 # that came from the host machine.
989 for machine in $build $host $target; do
990 . ${srcdir}/config.gcc
993 extra_objs="${host_extra_objs} ${extra_objs}"
995 # Default the target-machine variables that were not explicitly set.
996 if test x"$tm_file" = x
997 then tm_file=$cpu_type/$cpu_type.h; fi
999 if test x"$extra_headers" = x
1000 then extra_headers=; fi
1002 if test x$md_file = x
1003 then md_file=$cpu_type/$cpu_type.md; fi
1005 if test x$out_file = x
1006 then out_file=$cpu_type/$cpu_type.c; fi
1008 if test x"$tmake_file" = x
1009 then tmake_file=$cpu_type/t-$cpu_type
1012 if test x"$dwarf2" = xyes
1013 then tm_file="$tm_file tm-dwarf2.h"
1016 # Say what files are being used for the output code and MD file.
1017 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1018 echo "Using \`$srcdir/config/$md_file' as machine description file."
1020 # If any of the xm_file variables contain nonexistent files, warn
1021 # about them and drop them.
1024 for x in $build_xm_file; do
1025 if test -f $srcdir/config/$x
1027 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1033 for x in $host_xm_file; do
1034 if test -f $srcdir/config/$x
1036 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1042 for x in $xm_file; do
1043 if test -f $srcdir/config/$x
1045 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1051 for f in $tm_file; do
1054 if test $count = ax; then
1055 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1057 echo "Using the following target machine macro files:"
1058 for f in $tm_file; do
1059 echo " $srcdir/config/$f"
1063 if test x$need_64bit_hwint = xyes; then
1064 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1065 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1069 for f in $host_xm_file; do
1072 if test $count = a; then
1074 elif test $count = ax; then
1075 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1077 echo "Using the following host machine macro files:"
1078 for f in $host_xm_file; do
1079 echo " $srcdir/config/$f"
1082 echo "Using ${out_host_hook_obj} for host machine hooks."
1084 if test "$host_xm_file" != "$build_xm_file"; then
1086 for f in $build_xm_file; do
1089 if test $count = a; then
1091 elif test $count = ax; then
1092 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1094 echo "Using the following build machine macro files:"
1095 for f in $build_xm_file; do
1096 echo " $srcdir/config/$f"
1101 if test x$thread_file = x; then
1102 if test x$target_thread_file != x; then
1103 thread_file=$target_thread_file
1105 thread_file='single'
1109 if test x$enable___cxa_atexit = xyes || \
1110 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1111 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1112 [Define if you want to use __cxa_atexit, rather than atexit, to
1113 register C++ destructors for local statics and global objects.
1114 This is essential for fully standards-compliant handling of
1115 destructors, but requires __cxa_atexit in libc.])
1118 # Look for a file containing extra machine modes.
1119 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1120 extra_modes_file='$(srcdir)'/config/${extra_modes}
1121 AC_SUBST(extra_modes_file)
1122 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1123 [Define to the name of a file containing a list of extra machine modes
1124 for this architecture.])
1125 AC_DEFINE(EXTRA_CC_MODES, 1,
1126 [Define if the target architecture needs extra machine modes to represent
1127 the results of comparisons.])
1130 # auto-host.h is the file containing items generated by autoconf and is
1131 # the first file included by config.h.
1132 # If host=build, it is correct to have bconfig include auto-host.h
1133 # as well. If host!=build, we are in error and need to do more
1134 # work to find out the build config parameters.
1135 if test x$host = x$build
1137 build_auto=auto-host.h
1140 # We create a subdir, then run autoconf in the subdir.
1141 # To prevent recursion we set host and build for the new
1142 # invocation of configure to the build for this invocation
1149 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1150 *) realsrcdir=../${srcdir};;
1152 saved_CFLAGS="${CFLAGS}"
1153 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1154 ${realsrcdir}/configure \
1155 --target=$target_alias --host=$build_alias --build=$build_alias
1156 CFLAGS="${saved_CFLAGS}"
1158 # We just finished tests for the build machine, so rename
1159 # the file auto-build.h in the gcc directory.
1160 mv auto-host.h ../auto-build.h
1163 build_auto=auto-build.h
1164 FORBUILD=../$(build_subdir)
1168 tm_file="${tm_file} defaults.h"
1169 tm_p_file="${tm_p_file} tm-preds.h"
1170 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1171 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1172 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1173 # put this back in temporarily.
1174 xm_file="ansidecl.h ${xm_file}"
1180 # Get the version trigger filename from the toplevel
1181 if test "${with_gcc_version_trigger+set}" = set; then
1182 gcc_version_trigger=$with_gcc_version_trigger
1184 gcc_version_trigger=${srcdir}/version.c
1187 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1188 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1190 # Compile in configure arguments.
1191 if test -f configargs.h ; then
1192 # Being re-configured.
1193 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1194 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1196 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1198 cat > configargs.h <<EOF
1199 /* Generated automatically. */
1200 static const char configuration_arguments[] = "$gcc_config_arguments";
1201 static const char thread_model[] = "$thread_file";
1203 static const struct {
1204 const char *name, *value;
1205 } configure_default_options[] = $configure_default_options;
1209 # Internationalization
1211 VERSION="$gcc_version"
1215 # Enable NLS support by default
1217 [ --enable-nls use Native Language Support (default)],
1220 # if cross compiling, disable NLS support.
1221 # It's not worth the trouble, at least for now.
1223 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
1224 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
1230 # Windows32 Registry support for specifying GCC installation paths.
1231 AC_ARG_ENABLE(win32-registry,
1232 [ --disable-win32-registry
1233 disable lookup of installation paths in the
1234 Registry on Windows hosts
1235 --enable-win32-registry enable registry lookup (default)
1236 --enable-win32-registry=KEY
1237 use KEY instead of GCC version as the last portion
1238 of the registry key],,)
1240 win32 | pe | cygwin* | mingw32* | uwin*)
1241 AC_MSG_CHECKING(whether windows registry support is requested)
1242 if test "x$enable_win32_registry" != xno; then
1243 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1244 [Define to 1 if installation paths should be looked up in Windows32
1245 Registry. Ignored on non windows32 hosts.])
1247 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1252 # Check if user specified a different registry key.
1253 case "x${enable_win32_registry}" in
1256 gcc_cv_win32_registry_key="$VERSION"
1259 # no registry lookup.
1260 gcc_cv_win32_registry_key=''
1263 # user-specified key.
1264 gcc_cv_win32_registry_key="$enable_win32_registry"
1268 if test "x$enable_win32_registry" != xno; then
1269 AC_MSG_CHECKING(registry key on windows hosts)
1270 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1271 [Define to be the last portion of registry key on windows hosts.])
1272 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1277 # Get an absolute path to the GCC top-level source directory
1278 holddir=`${PWDCMD-pwd}`
1280 topdir=`${PWDCMD-pwd}`
1283 # Conditionalize the makefile for this host machine.
1284 # Make-host contains the concatenation of all host makefile fragments
1285 # [there can be more than one]. This file is built by configure.frag.
1286 host_overrides=Make-host
1287 dep_host_xmake_file=
1288 for f in .. ${host_xmake_file}
1290 if test -f ${srcdir}/config/$f
1292 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1296 # Conditionalize the makefile for this target machine.
1297 # Make-target contains the concatenation of all host makefile fragments
1298 # [there can be more than one]. This file is built by configure.frag.
1299 target_overrides=Make-target
1301 for f in .. ${tmake_file}
1303 if test -f ${srcdir}/config/$f
1305 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1309 symbolic_link='ln -s'
1311 # If the host doesn't support symlinks, modify CC in
1312 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1313 # Otherwise, we can use "CC=$(CC)".
1315 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1317 cc_set_by_configure="\$(CC)"
1318 quoted_cc_set_by_configure="\$(CC)"
1319 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1320 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1323 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1325 symbolic_link="cp -p"
1329 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1330 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1331 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1332 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1336 out_object_file=`basename $out_file .c`.o
1339 for f in $tm_file; do
1342 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1344 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1345 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1350 for f in $tm_p_file; do
1353 tm_p_file_list="${tm_p_file_list} $f" ;;
1354 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1359 for f in $host_xm_file; do
1362 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1364 host_xm_file_list="${host_xm_file_list} $f" ;;
1366 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1367 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1372 for f in $build_xm_file; do
1375 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1376 auto-build.h | auto-host.h )
1377 build_xm_file_list="${build_xm_file_list} $f" ;;
1379 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1380 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1384 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1385 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1386 CROSS= AC_SUBST(CROSS)
1387 ALL=all.internal AC_SUBST(ALL)
1388 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1389 if test x$host != x$target
1391 CROSS="-DCROSS_COMPILE"
1393 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1394 case "$host","$target" in
1395 i?86-*-*,x86_64-*-* \
1396 | powerpc*-*-*,powerpc64*-*-*)
1397 CROSS="$CROSS -DNATIVE_CROSS" ;;
1399 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1400 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1401 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1404 # If this is a cross-compiler that does not
1405 # have its own set of headers then define
1408 # If this is using newlib, without having the headers available now,
1409 # then define inhibit_libc in LIBGCC2_CFLAGS.
1410 # This prevents libgcc2 from containing any code which requires libc
1413 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1414 test x$with_newlib = xyes ; } &&
1415 test "x$with_headers" = x ; then
1416 inhibit_libc=-Dinhibit_libc
1418 AC_SUBST(inhibit_libc)
1420 # When building gcc with a cross-compiler, we need to adjust things so
1421 # that the generator programs are still built with the native compiler.
1422 # Also, we cannot run fixincludes or fix-header.
1424 # These are the normal (build=host) settings:
1425 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1426 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1427 BUILD_CC='$(CC)' AC_SUBST(BUILD_CC)
1428 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1430 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1431 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1433 # And these apply if build != host.
1434 if test x$build != x$host
1437 BUILD_PREFIX_1=build-
1438 BUILD_CC='$(CC_FOR_BUILD)'
1439 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1441 if test "x$TARGET_SYSTEM_ROOT" = x; then
1447 # Expand extra_headers to include complete path.
1448 # This substitutes for lots of t-* files.
1450 if test "x$extra_headers" = x
1453 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1454 for file in $extra_headers;
1456 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1460 # Add a definition of USE_COLLECT2 if system wants one.
1461 case $use_collect2 in
1462 no) use_collect2= ;;
1465 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1466 xm_defines="${xm_defines} USE_COLLECT2"
1470 # Identify the assembler which will work hand-in-glove with the newly
1471 # built GCC, so that we can examine its features. This is the assembler
1472 # which will be driven by the driver program.
1474 # If build != host, and we aren't building gas in-tree, we identify a
1475 # build->target assembler and hope that it will have the same features
1476 # as the host->target assembler we'll be using.
1477 AC_MSG_CHECKING(what assembler to use)
1480 gcc_cv_gas_major_version=
1481 gcc_cv_gas_minor_version=
1482 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1483 if test -x "$DEFAULT_ASSEMBLER"; then
1484 gcc_cv_as="$DEFAULT_ASSEMBLER"
1485 elif test -x "$AS"; then
1487 elif test -x as$host_exeext; then
1488 # Build using assembler in the current directory.
1489 gcc_cv_as=./as$host_exeext
1490 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1491 && test -f ../gas/Makefile; then
1492 # Single tree build which includes gas.
1494 _gcc_COMPUTE_GAS_VERSION
1495 rm -f as$host_exeext
1496 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1499 if test "x$gcc_cv_as" = x; then
1500 # Search the same directories that the installed compiler will
1501 # search. Else we may find the wrong assembler and lose. If we
1502 # do not find a suitable assembler binary, then try the user's
1505 # Also note we have to check MD_EXEC_PREFIX before checking the
1506 # user's path. Unfortunately, there is no good way to get at the
1507 # value of MD_EXEC_PREFIX here. So we do a brute force search
1508 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1509 # to be fixed as part of the make/configure rewrite too.
1511 if test "x$exec_prefix" = xNONE; then
1512 if test "x$prefix" = xNONE; then
1513 test_prefix=/usr/local
1518 test_prefix=$exec_prefix
1521 # If the loop below does not find an assembler, then use whatever
1522 # one we can find in the users's path.
1524 if test "x$program_prefix" != xNONE; then
1525 gcc_cv_as=${program_prefix}as$host_exeext
1527 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1530 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1531 $test_prefix/lib/gcc-lib/$target_alias \
1532 /usr/lib/gcc/$target_alias/$gcc_version \
1533 /usr/lib/gcc/$target_alias \
1534 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1535 $test_prefix/$target_alias/bin"
1537 if test x$host = x$target; then
1538 test_dirs="$test_dirs \
1543 /bsd43/usr/lib/cmplrs/cc \
1544 /usr/cross64/usr/bin \
1545 /usr/lib/cmplrs/cc \
1546 /sysv/usr/lib/cmplrs/cc \
1547 /svr4/usr/lib/cmplrs/cc \
1551 for dir in $test_dirs; do
1552 if test -x $dir/as$host_exeext; then
1553 gcc_cv_as=$dir/as$host_exeext
1558 case $in_tree_gas in
1560 AC_MSG_RESULT("newly built gas")
1563 AC_MSG_RESULT($gcc_cv_as)
1567 # Identify the linker which will work hand-in-glove with the newly
1568 # built GCC, so that we can examine its features. This is the linker
1569 # which will be driven by the driver program.
1571 # If build != host, and we aren't building gas in-tree, we identify a
1572 # build->target linker and hope that it will have the same features
1573 # as the host->target linker we'll be using.
1574 AC_MSG_CHECKING(what linker to use)
1577 gcc_cv_gld_major_version=
1578 gcc_cv_gld_minor_version=
1579 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1580 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1581 if test -x "$DEFAULT_LINKER"; then
1582 gcc_cv_ld="$DEFAULT_LINKER"
1583 elif test -x "$LD"; then
1585 elif test -x collect-ld$host_exeext; then
1586 # Build using linker in the current directory.
1587 gcc_cv_ld=./collect-ld$host_exeext
1588 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1589 && test -f ../ld/Makefile; then
1590 # Single tree build which includes ld.
1592 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
1595 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1597 if test x$gcc_cv_gld_version != x; then
1602 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1603 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1605 rm -f collect-ld$host_exeext
1606 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1610 if test "x$gcc_cv_ld" = x; then
1611 # Search the same directories that the installed compiler will
1612 # search. Else we may find the wrong linker and lose. If we
1613 # do not find a suitable linker binary, then try the user's
1616 # Also note we have to check MD_EXEC_PREFIX before checking the
1617 # user's path. Unfortunately, there is no good way to get at the
1618 # value of MD_EXEC_PREFIX here. So we do a brute force search
1619 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1620 # to be fixed as part of the make/configure rewrite too.
1622 if test "x$exec_prefix" = xNONE; then
1623 if test "x$prefix" = xNONE; then
1624 test_prefix=/usr/local
1629 test_prefix=$exec_prefix
1632 # If the loop below does not find an linker, then use whatever
1633 # one we can find in the users's path.
1635 if test "x$program_prefix" != xNONE; then
1636 gcc_cv_ld=${program_prefix}ld$host_exeext
1638 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1641 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1642 $test_prefix/lib/gcc-lib/$target_alias \
1643 /usr/lib/gcc/$target_alias/$gcc_version \
1644 /usr/lib/gcc/$target_alias \
1645 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1646 $test_prefix/$target_alias/bin"
1648 if test x$host = x$target; then
1649 test_dirs="$test_dirs \
1654 /bsd43/usr/lib/cmplrs/cc \
1655 /usr/cross64/usr/bin \
1656 /usr/lib/cmplrs/cc \
1657 /sysv/usr/lib/cmplrs/cc \
1658 /svr4/usr/lib/cmplrs/cc \
1662 for dir in $test_dirs; do
1663 if test -x $dir/ld$host_exeext; then
1664 gcc_cv_ld=$dir/ld$host_exeext
1671 AC_MSG_RESULT("newly built ld")
1674 AC_MSG_RESULT($gcc_cv_ld)
1678 # Figure out what nm we will be using.
1679 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1680 AC_MSG_CHECKING(what nm to use)
1682 if test -x nm$host_exeext; then
1683 gcc_cv_nm=./nm$host_exeext
1684 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1685 && test -f ../binutils/Makefile; then
1686 # Single tree build which includes binutils.
1688 gcc_cv_nm=./nm$host_exeext
1689 rm -f nm$host_exeext
1690 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1691 elif test "x$program_prefix" != xNONE; then
1692 gcc_cv_nm=${program_prefix}nm$host_exeext
1694 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1697 yes) AC_MSG_RESULT("newly built nm") ;;
1698 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1701 # Figure out what objdump we will be using.
1702 AC_MSG_CHECKING(what objdump to use)
1704 if test -x objdump$host_exeext; then
1705 gcc_cv_objdump=./objdump$host_exeext
1706 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1707 && test -f ../binutils/Makefile; then
1708 # Single tree build which includes binutils.
1710 gcc_cv_objdump=./objdump$host_exeext
1711 rm -f objdump$host_exeext
1712 $symbolic_link ../binutils/objdump$host_exeext \
1713 objdump$host_exeext 2>/dev/null
1714 elif test "x$program_prefix" != xNONE; then
1715 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1717 gcc_cv_objdump=`echo objdump | \
1718 sed ${program_transform_name}`$host_exeext
1720 case $in_tree_objdump in
1721 yes) AC_MSG_RESULT("newly built objdump") ;;
1722 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1725 # Figure out what assembler alignment features are present.
1726 AC_MSG_CHECKING(assembler alignment features)
1727 gcc_cv_as_alignment_features=none
1728 if test $in_tree_gas = yes; then
1729 # Gas version 2.6 and later support for .balign and .p2align.
1730 gcc_GAS_VERSION_GTE_IFELSE(2,6,0,[
1731 gcc_cv_as_alignment_features=".balign and .p2align"
1732 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1734 # Gas version 2.8 and later support specifying the maximum
1735 # bytes to skip when using .p2align.
1736 gcc_GAS_VERSION_GTE_IFELSE(2,8,0,[
1737 gcc_cv_as_alignment_features=".p2align including maximum skip"
1738 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1740 elif test x$gcc_cv_as != x; then
1741 # Check if we have .balign and .p2align
1742 echo ".balign 4" > conftest.s
1743 echo ".p2align 2" >> conftest.s
1744 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1745 gcc_cv_as_alignment_features=".balign and .p2align"
1746 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1748 rm -f conftest.s conftest.o
1749 # Check if specifying the maximum bytes to skip when
1750 # using .p2align is supported.
1751 echo ".p2align 4,,7" > conftest.s
1752 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1753 gcc_cv_as_alignment_features=".p2align including maximum skip"
1754 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1756 rm -f conftest.s conftest.o
1758 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1760 AC_MSG_CHECKING(assembler subsection support)
1761 gcc_cv_as_subsections=no
1762 if test $in_tree_gas = yes ; then
1763 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
1764 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1765 gcc_cv_as_subsections="working .subsection -1"
1768 elif test x$gcc_cv_as != x; then
1769 # Check if we have .subsection
1770 echo ".subsection 1" > conftest.s
1771 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1772 gcc_cv_as_subsections=".subsection"
1773 if test x$gcc_cv_nm != x; then
1774 cat > conftest.s <<EOF
1775 conftest_label1: .word 0
1777 conftest_label2: .word 0
1780 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1781 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1782 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1783 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1786 gcc_cv_as_subsections="working .subsection -1"
1791 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1793 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1794 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1795 [Define if your assembler supports .subsection and .subsection -1 starts
1796 emitting at the beginning of your section.])
1798 AC_MSG_RESULT($gcc_cv_as_subsections)
1800 AC_MSG_CHECKING(assembler weak support)
1802 if test $in_tree_gas = yes ; then
1803 gcc_GAS_VERSION_GTE_IFELSE(2,2,0,[
1804 gcc_cv_as_weak="yes"
1806 elif test x$gcc_cv_as != x; then
1807 # Check if we have .weak
1808 echo " .weak foobar" > conftest.s
1809 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1810 gcc_cv_as_weak="yes"
1812 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1814 if test x"$gcc_cv_as_weak" = xyes; then
1815 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1817 AC_MSG_RESULT($gcc_cv_as_weak)
1819 AC_MSG_CHECKING(assembler hidden support)
1821 if test $in_tree_gas = yes ; then
1822 gcc_GAS_VERSION_GTE_IFELSE(2,12,1,[
1823 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1824 gcc_cv_as_hidden="yes"
1827 elif test x$gcc_cv_as != x; then
1828 # Check if we have .hidden
1829 echo " .hidden foobar" > conftest.s
1830 echo "foobar:" >> conftest.s
1831 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1832 gcc_cv_as_hidden="yes"
1834 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1836 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1837 # This is irritatingly difficult to feature test for. Look for
1838 # the date string after the version number.
1839 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1840 if echo "$ld_ver" | grep GNU > /dev/null; then
1842 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\)\([ ].*\|\)$,\1,p'`
1843 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1844 if test 0"$ld_date" -lt 20020404; then
1845 if test -n "$ld_date"; then
1846 # If there was date string, but was earlier than 2002-04-04, fail
1847 gcc_cv_as_hidden="no"
1848 elif test -z "$ld_vers"; then
1849 # If there was no date string nor ld version number, something is wrong
1850 gcc_cv_as_hidden="no"
1852 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1853 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1854 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1855 test -z "$ld_vers_patch" && ld_vers_patch=0
1856 if test "$ld_vers_major" -lt 2; then
1857 gcc_cv_as_hidden="no"
1858 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1859 gcc_cv_as_hidden="no"
1860 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1861 -a "$ld_vers_patch" -eq 0; then
1862 gcc_cv_as_hidden="no"
1871 if test x"$gnu_ld_flag" = x"no"; then
1872 # Even if using gas with .hidden support, the resulting object files
1873 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1874 # N64 linkers, the problem is that the linker refuses to accept
1875 # -call_shared (passed by default to the linker) and -r (used to
1876 # link the object file generated without .hidden directives with
1877 # one that hides symbols), so we also lose.
1882 if test x"$gcc_cv_as_hidden" = xyes; then
1883 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1884 [Define if your assembler supports .hidden.])
1886 AC_MSG_RESULT($gcc_cv_as_hidden)
1887 libgcc_visibility=$gcc_cv_as_hidden
1888 AC_SUBST(libgcc_visibility)
1890 AC_MSG_CHECKING(assembler leb128 support)
1892 if test $in_tree_gas = yes ; then
1893 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
1894 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1895 gcc_cv_as_leb128="yes"
1898 elif test x$gcc_cv_as != x; then
1899 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1900 cat > conftest.s <<EOF
1908 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1909 gcc_cv_as_leb128="yes"
1911 # GAS versions before 2.11 do not support uleb128,
1912 # despite appearing to.
1913 # ??? There exists an elf-specific test that will crash
1914 # the assembler. Perhaps it's better to figure out whether
1915 # arbitrary sections are supported and try the test.
1916 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1917 if echo "$as_ver" | grep GNU > /dev/null; then
1919 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1920 as_major=`echo $as_ver | sed 's/\..*//'`
1921 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1923 if test $as_major -eq 2 -a $as_minor -lt 11; then
1924 gcc_cv_as_leb128="no"
1928 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1930 if test x"$gcc_cv_as_leb128" = xyes; then
1931 AC_DEFINE(HAVE_AS_LEB128, 1,
1932 [Define if your assembler supports .uleb128.])
1934 AC_MSG_RESULT($gcc_cv_as_leb128)
1936 AC_MSG_CHECKING(assembler eh_frame optimization)
1937 gcc_cv_as_eh_frame=no
1938 if test $in_tree_gas = yes ; then
1939 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1940 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1941 gcc_cv_as_eh_frame="yes"
1944 elif test x$gcc_cv_as != x; then
1945 # Check if this is GAS.
1946 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1947 rm -f a.out 2> /dev/null
1948 if echo "$as_ver" | grep GNU > /dev/null; then
1949 # Versions up to and including 2.11.0 may mis-optimize
1950 # .eh_frame data. Try something.
1951 cat > conftest.s <<EOF
1958 .section .eh_frame,"aw",@progbits
1960 .4byte .LECIE1-.LSCIE1
1974 .4byte .LEFDE1-.LASFDE1
1976 .4byte .LASFDE1-__FRAME_BEGIN__
1985 cat > conftest.lit <<EOF
1986 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1987 0010 01000000 12000000 18000000 00000000 ................
1988 0020 08000000 04080000 0044 .........D
1990 cat > conftest.big <<EOF
1991 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1992 0010 00000001 00000012 00000018 00000000 ................
1993 0020 00000008 04000000 0844 .........D
1995 # If the assembler didn't choke, and we can objdump,
1996 # and we got the correct data, then succeed.
1997 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1998 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1999 | tail -3 > conftest.got \
2000 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2001 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2003 gcc_cv_as_eh_frame="yes"
2005 gcc_cv_as_eh_frame="bad"
2006 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
2007 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2008 [Define if your assembler mis-optimizes .eh_frame data.])
2014 AC_MSG_RESULT($gcc_cv_as_eh_frame)
2016 AC_MSG_CHECKING(assembler section merging support)
2017 gcc_cv_as_shf_merge=no
2018 if test $in_tree_gas = yes ; then
2019 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2020 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
2021 gcc_cv_as_shf_merge=yes
2024 elif test x$gcc_cv_as != x; then
2025 # Check if we support SHF_MERGE sections
2026 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
2027 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
2028 gcc_cv_as_shf_merge=yes
2030 rm -f conftest.s conftest.o
2032 if test x"$gcc_cv_as_shf_merge" = xyes; then
2033 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
2034 [Define if your assembler supports marking sections with SHF_MERGE flag.])
2036 AC_MSG_RESULT($gcc_cv_as_shf_merge)
2038 AC_MSG_CHECKING(assembler thread-local storage support)
2048 .section ".tdata","awT",@progbits
2051 ldq $27,__tls_get_addr($29) !literal!1
2052 lda $16,foo($29) !tlsgd!1
2053 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2054 ldq $27,__tls_get_addr($29) !literal!2
2055 lda $16,foo($29) !tlsldm!2
2056 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2057 ldq $1,foo($29) !gotdtprel
2058 ldah $2,foo($29) !dtprelhi
2059 lda $3,foo($2) !dtprello
2060 lda $4,foo($29) !dtprel
2061 ldq $1,foo($29) !gottprel
2062 ldah $2,foo($29) !tprelhi
2063 lda $3,foo($2) !tprello
2064 lda $4,foo($29) !tprel'
2071 .section ".tdata","awT",@progbits
2075 leal foo@TLSGD(,%ebx,1), %eax
2076 leal foo@TLSLDM(%ebx), %eax
2077 leal foo@DTPOFF(%eax), %edx
2078 movl foo@GOTTPOFF(%ebx), %eax
2079 subl foo@GOTTPOFF(%ebx), %eax
2080 addl foo@GOTNTPOFF(%ebx), %eax
2081 movl foo@INDNTPOFF, %eax
2082 movl $foo@TPOFF, %eax
2083 subl $foo@TPOFF, %eax
2084 leal foo@NTPOFF(%ecx), %eax'
2090 .section ".tdata","awT",@progbits
2094 leaq foo@TLSGD(%rip), %rdi
2095 leaq foo@TLSLD(%rip), %rdi
2096 leaq foo@DTPOFF(%rax), %rdx
2097 movq foo@GOTTPOFF(%rip), %rax
2098 movq $foo@TPOFF, %rax'
2104 .section ".tdata","awT",@progbits
2107 addl r16 = @ltoff(@dtpmod(foo#)), gp
2108 addl r17 = @ltoff(@dtprel(foo#)), gp
2109 addl r18 = @ltoff(@tprel(foo#)), gp
2110 addl r19 = @dtprel(foo#), gp
2111 adds r21 = @dtprel(foo#), r13
2112 movl r23 = @dtprel(foo#)
2113 addl r20 = @tprel(foo#), gp
2114 adds r22 = @tprel(foo#), r13
2115 movl r24 = @tprel(foo#)'
2121 .section ".tdata","awT",@progbits
2129 addi 3,31,ld0@got@tlsgd
2131 addi 3,31,x1@got@tlsld
2134 addis 9,3,x2@dtprel@ha
2135 addi 9,9,x2@dtprel@l
2136 lwz 9,x3@got@tprel(31)
2139 addis 9,2,x2@tprel@ha
2140 addi 9,9,x2@tprel@l'
2147 .section ".tdata","awT",@progbits
2155 addi 3,2,ld0@got@tlsgd
2161 addi 3,2,x1@got@tlsld
2167 addis 9,3,x2@dtprel@ha
2168 addi 9,9,x2@dtprel@l
2171 ld 9,x3@got@dtprel(2)
2181 .section ".tdata","awT",@progbits
2190 l %r1,foo@GOTNTPOFF(%r12)
2191 l %r1,0(%r1):tls_load:foo
2192 bas %r14,0(%r1,%r13):tls_gdcall:foo
2193 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2200 .section ".tdata","awT",@progbits
2208 lg %r1,foo@GOTNTPOFF(%r12)
2209 larl %r1,foo@INDNTPOFF
2210 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2211 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2214 tls_as_opt="-m64 -Aesame"
2217 if test -z "$tls_first_major"; then
2219 elif test $in_tree_gas = yes ; then
2220 gcc_GAS_VERSION_GTE_IFELSE($tls_first_major,$tls_first_minor,0,[
2223 elif test x$gcc_cv_as != x; then
2224 echo "$conftest_s" > conftest.s
2225 if $gcc_cv_as $tls_as_opt --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
2229 rm -f conftest.s conftest.o
2231 if test "$gcc_cv_as_tls" = yes; then
2232 AC_DEFINE(HAVE_AS_TLS, 1,
2233 [Define if your assembler supports thread-local storage.])
2235 AC_MSG_RESULT($gcc_cv_as_tls)
2238 # All TARGET_ABI_OSF targets.
2239 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2240 AC_CACHE_CHECK([assembler supports explicit relocations],
2241 gcc_cv_as_explicit_relocs, [
2242 gcc_cv_as_explicit_relocs=unknown
2243 if test $in_tree_gas = yes ; then
2244 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2245 gcc_cv_as_explicit_relocs=yes
2247 elif test x$gcc_cv_as != x; then
2248 cat > conftest.s << 'EOF'
2251 extbl $3, $2, $3 !lituse_bytoff!1
2252 ldq $2, a($29) !literal!1
2253 ldq $4, b($29) !literal!2
2254 ldq_u $3, 0($2) !lituse_base!1
2255 ldq $27, f($29) !literal!5
2256 jsr $26, ($27), f !lituse_jsr!5
2257 ldah $29, 0($26) !gpdisp!3
2258 lda $0, c($29) !gprel
2259 ldah $1, d($29) !gprelhigh
2260 lda $1, d($1) !gprellow
2261 lda $29, 0($29) !gpdisp!3
2263 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2264 gcc_cv_as_explicit_relocs=yes
2266 gcc_cv_as_explicit_relocs=no
2268 rm -f conftest.s conftest.o
2271 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2272 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2273 [Define if your assembler supports explicit relocations.])
2277 AC_CACHE_CHECK([assembler .register pseudo-op support],
2278 gcc_cv_as_register_pseudo_op, [
2279 gcc_cv_as_register_pseudo_op=unknown
2280 if test x$gcc_cv_as != x; then
2281 # Check if we have .register
2282 echo ".register %g2, #scratch" > conftest.s
2283 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2284 gcc_cv_as_register_pseudo_op=yes
2286 gcc_cv_as_register_pseudo_op=no
2288 rm -f conftest.s conftest.o
2291 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2292 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2293 [Define if your assembler supports .register.])
2296 AC_CACHE_CHECK([assembler supports -relax],
2297 gcc_cv_as_relax_opt, [
2298 gcc_cv_as_relax_opt=unknown
2299 if test x$gcc_cv_as != x; then
2300 # Check if gas supports -relax
2301 echo ".text" > conftest.s
2302 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2303 gcc_cv_as_relax_opt=yes
2305 gcc_cv_as_relax_opt=no
2307 rm -f conftest.s conftest.o
2310 if test "x$gcc_cv_as_relax_opt" = xyes; then
2311 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2312 [Define if your assembler supports -relax option.])
2315 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2316 gcc_cv_as_sparc_ua_pcrel, [
2317 gcc_cv_as_sparc_ua_pcrel=unknown
2318 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2319 gcc_cv_as_sparc_ua_pcrel=no
2320 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2321 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2322 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2323 gcc_cv_as_sparc_ua_pcrel=yes
2325 rm -f conftest.s conftest.o conftest
2328 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2329 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2330 [Define if your assembler and linker support unaligned PC relative relocs.])
2333 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2334 gcc_cv_as_sparc_ua_pcrel_hidden, [
2335 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2336 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2337 if test x$gcc_cv_objdump != x; then
2338 gcc_cv_as_sparc_ua_pcrel_hidden=no
2339 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2340 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2341 echo "foo: .skip 4" >> conftest.s
2342 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2343 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2344 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2345 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2346 if $gcc_cv_objdump -R conftest 2> /dev/null \
2347 | grep 'DISP32' > /dev/null 2>&1; then
2350 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2354 rm -f conftest.s conftest.o conftest
2356 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2359 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2360 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2361 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2364 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2365 gcc_cv_as_offsetable_lo10, [
2366 gcc_cv_as_offsetable_lo10=unknown
2367 if test "x$gcc_cv_as" != x; then
2368 # Check if assembler has offsetable %lo()
2369 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2370 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2371 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2373 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2374 > /dev/null 2>&1; then
2375 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2376 gcc_cv_as_offsetable_lo10=no
2378 gcc_cv_as_offsetable_lo10=yes
2381 gcc_cv_as_offsetable_lo10=no
2383 rm -f conftest.s conftest.o conftest1.s conftest1.o
2386 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2387 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2388 [Define if your assembler supports offsetable %lo().])
2394 i[34567]86-*-* | x86_64-*-*)
2396 AC_MSG_CHECKING(assembler instructions)
2397 gcc_cv_as_instructions=
2398 if test $in_tree_gas = yes ; then
2399 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
2400 gcc_cv_as_instructions="filds fists"
2402 elif test x$gcc_cv_as != x; then
2403 set "filds fists" "filds mem; fists mem"
2406 echo "$2" > conftest.s
2407 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2408 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2412 rm -f conftest.s conftest.o
2414 if test x"$gcc_cv_as_instructions" != x; then
2415 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2417 AC_MSG_RESULT($gcc_cv_as_instructions)
2419 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2420 gcc_cv_as_gotoff_in_data=no
2421 if test $in_tree_gas = yes ; then
2422 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2423 gcc_cv_as_gotoff_in_data=yes
2425 elif test x$gcc_cv_as != x; then
2426 cat > conftest.s <<EOF
2433 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2434 gcc_cv_as_gotoff_in_data=yes
2437 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2438 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2439 [Define true if the assembler supports '.long foo@GOTOFF'.])
2440 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2444 AC_CACHE_CHECK([assembler supports ltoffx and ldxmov],
2445 gcc_cv_as_ltoffx_ldxmov_relocs, [
2446 gcc_cv_as_ltoffx_ldxmov_relocs=unknown
2447 if test $in_tree_gas = yes ; then
2448 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2449 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2451 elif test x$gcc_cv_as != x; then
2452 cat > conftest.s << 'EOF'
2455 addl r15 = @ltoffx(x#), gp
2457 ld8.mov r16 = [r15], x#
2460 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2461 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2463 gcc_cv_as_ltoffx_ldxmov_relocs=no
2465 rm -f conftest.s conftest.o
2468 if test "x$gcc_cv_as_ltoffx_ldxmov_relocs" = xyes; then
2469 AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2470 [Define if your assembler supports ltoffx and ldxmov relocations.])
2475 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2476 gcc_cv_as_dwarf2_debug_line=no
2477 # ??? Not all targets support dwarf2 debug_line, even within a version
2478 # of gas. Moreover, we need to emit a valid instruction to trigger any
2479 # info to the output file. So, as supported targets are added to gas 2.11,
2480 # add some instruction here to (also) show we expect this might work.
2481 # ??? Once 2.11 is released, probably need to add first known working
2482 # version to the per-target configury.
2484 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2485 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* | xstormy16*-*-*)
2492 if test $in_tree_gas = yes ; then
2493 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2494 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2495 && test x"$insn" != x ; then
2496 gcc_cv_as_dwarf2_debug_line="yes"
2499 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2500 echo ' .file 1 "conftest.s"' > conftest.s
2501 echo ' .loc 1 3 0' >> conftest.s
2502 echo " $insn" >> conftest.s
2503 # ??? This fails with non-gnu grep.
2504 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2505 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2506 # The .debug_line file table must be in the exact order that
2507 # we specified the files, since these indices are also used
2508 # by DW_AT_decl_file. Approximate this test by testing if
2509 # the assembler bitches if the same index is assigned twice.
2510 echo ' .file 1 "foo.s"' > conftest.s
2511 echo ' .file 1 "bar.s"' >> conftest.s
2512 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2514 gcc_cv_as_dwarf2_debug_line="no"
2516 gcc_cv_as_dwarf2_debug_line="yes"
2519 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2521 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2522 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2523 [Define if your assembler supports dwarf2 .file/.loc directives,
2524 and preserves file table indices exactly as given.])
2526 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2528 AC_MSG_CHECKING(assembler --gdwarf2 support)
2529 gcc_cv_as_gdwarf2_flag=no
2530 if test $in_tree_gas = yes ; then
2531 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2532 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2533 && test x"$insn" != x ; then
2534 gcc_cv_as_gdwarf2_flag="yes"
2537 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2538 echo '' > conftest.s
2539 # ??? This fails with non-gnu grep.
2540 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2542 gcc_cv_as_gdwarf2_flag="yes"
2544 rm -f conftest.s conftest.o
2546 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2547 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2548 [Define if your assembler supports the --gdwarf2 option.])
2550 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2552 AC_MSG_CHECKING(assembler --gstabs support)
2553 gcc_cv_as_gstabs_flag=no
2554 if test $in_tree_gas = yes ; then
2555 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2556 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2557 && test x"$insn" != x ; then
2558 gcc_cv_as_gstabs_flag="yes"
2561 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2562 echo '' > conftest.s
2563 # ??? This fails with non-gnu grep.
2564 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2565 gcc_cv_as_gstabs_flag="yes"
2567 rm -f conftest.s conftest.o
2569 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2570 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2571 [Define if your assembler supports the --gstabs option.])
2573 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2575 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2576 gcc_cv_ld_ro_rw_mix=unknown
2577 if test $in_tree_ld = yes ; then
2578 if test "$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
2579 gcc_cv_ld_ro_rw_mix=read-write
2581 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2582 echo '.section myfoosect, "a"' > conftest1.s
2583 echo '.section myfoosect, "aw"' > conftest2.s
2584 echo '.byte 1' >> conftest2.s
2585 echo '.section myfoosect, "a"' > conftest3.s
2586 echo '.byte 0' >> conftest3.s
2587 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2588 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2589 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2590 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2591 conftest2.o conftest3.o > /dev/null 2>&1; then
2592 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2593 | sed -e '/myfoosect/!d' -e N`
2594 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2595 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2596 gcc_cv_ld_ro_rw_mix=read-only
2598 gcc_cv_ld_ro_rw_mix=read-write
2603 rm -f conftest.* conftest[123].*
2606 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2607 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2608 [Define if your linker links a mix of read-only
2609 and read-write sections into a read-write section.])
2611 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2613 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2614 gcc_cv_ld_eh_frame_hdr=no
2615 if test $in_tree_ld = yes ; then
2616 if test "$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
2617 gcc_cv_ld_eh_frame_hdr=yes
2619 elif test x$gcc_cv_ld != x; then
2620 # Check if linker supports --eh-frame-hdr option
2621 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2622 gcc_cv_ld_eh_frame_hdr=yes
2625 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2626 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2627 [Define if your linker supports --eh-frame-hdr option.])
2629 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2631 AC_MSG_CHECKING(linker position independent executable support)
2633 if test $in_tree_ld = yes ; then
2634 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2637 elif test x$gcc_cv_ld != x; then
2638 # Check if linker supports -pie option
2639 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2643 if test x"$gcc_cv_ld_pie" = xyes; then
2644 AC_DEFINE(HAVE_LD_PIE, 1,
2645 [Define if your linker supports -pie option.])
2647 AC_MSG_RESULT($gcc_cv_ld_pie)
2649 # Miscellaneous target-specific checks.
2652 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2653 gcc_cv_mips_libgloss_startup=no
2654 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2655 if test "x$exec_prefix" = xNONE; then
2656 if test "x$prefix" = xNONE; then
2657 test_prefix=/usr/local
2662 test_prefix=$exec_prefix
2664 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2666 if grep '^STARTUP' $f > /dev/null 2>&1; then
2667 gcc_cv_mips_libgloss_startup=yes
2671 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2672 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2673 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2675 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2677 AC_MSG_CHECKING(whether the assembler has explicit relocation support)
2678 if test x$gcc_cv_mips_explicit_relocs = x; then
2679 gcc_cv_mips_explicit_relocs=no
2680 if test $in_tree_gas = yes; then
2681 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2682 gcc_cv_mips_explicit_relocs=yes
2684 elif test x$gcc_cv_as != x; then
2685 echo ' lw $4,%gp_rel(foo)($4)' > conftest.s
2686 if $gcc_cv_as conftest.s -o conftest.o > /dev/null 2>&1; then
2687 gcc_cv_mips_explicit_relocs=yes
2689 rm -f conftest.s conftest.o
2692 if test $gcc_cv_mips_explicit_relocs = yes; then
2693 test x$target_cpu_default != x || target_cpu_default=0
2694 target_cpu_default="(${target_cpu_default}|MASK_EXPLICIT_RELOCS)"
2696 AC_MSG_RESULT($gcc_cv_mips_explicit_relocs)
2700 if test x$with_sysroot = x && test x$host = x$target \
2701 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2702 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2705 # Figure out what language subdirectories are present.
2706 # Look if the user specified --enable-languages="..."; if not, use
2707 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2709 # NB: embedded tabs in this IF block -- do not untabify
2710 if test x"${enable_languages+set}" != xset; then
2711 if test x"${LANGUAGES+set}" = xset; then
2712 enable_languages="${LANGUAGES}"
2713 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2716 enable_languages=all
2719 if test x"${enable_languages}" = x \
2720 || test x"${enable_languages}" = xyes;
2722 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2725 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2727 # First scan to see if an enabled language requires some other language.
2728 # We assume that a given config-lang.in will list all the language
2729 # front ends it requires, even if some are required indirectly.
2730 for lang in ${srcdir}/*/config-lang.in ..
2735 # The odd quoting in the next line works around
2736 # an apparent bug in bash 1.12 on linux.
2738 ${srcdir}/[*]/config-lang.in)
2741 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2742 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2743 for other in $this_lang_requires
2745 case ,${enable_languages}, in
2751 enable_languages="$enable_languages,$other"
2760 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2763 for lang in ${srcdir}/*/config-lang.in ..
2767 # The odd quoting in the next line works around
2768 # an apparent bug in bash 1.12 on linux.
2770 ${srcdir}/[*]/config-lang.in) ;;
2772 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2773 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2774 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2775 if test "x$lang_alias" = x
2777 echo "$lang doesn't set \$language." 1>&2
2780 case ${build_by_default},${enable_languages}, in
2781 *,$lang_alias,*) add_this_lang=yes ;;
2782 no,*) add_this_lang=no ;;
2783 *,all,*) add_this_lang=yes ;;
2784 *) add_this_lang=no ;;
2786 found_languages="${found_languages} ${lang_alias}"
2787 if test x"${add_this_lang}" = xyes; then
2789 ${srcdir}/ada/config-lang.in)
2790 if test x$have_gnat = xyes ; then
2791 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2795 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2805 for expected_language in ${expected_languages} ..
2807 if test "${expected_language}" != ..; then
2808 missing_language="${expected_language}"
2809 if test "${expected_language}" = "c" \
2810 || test "${expected_language}" = "all"; then
2813 for found_language in ${found_languages} ..
2815 if test "${found_language}" != ..; then
2816 if test "${expected_language}" = "${found_language}"; then
2821 if test "x${missing_language}" != x; then
2822 missing_languages="${missing_languages} ${missing_language}"
2827 if test "x$missing_languages" != x; then
2829 The following requested languages were not found:${missing_languages}
2830 The following languages were available: c${found_languages}])
2833 # Make gthr-default.h if we have a thread file.
2835 if test $thread_file != single; then
2836 rm -f gthr-default.h
2837 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2838 gthread_flags=-DHAVE_GTHR_DEFAULT
2840 AC_SUBST(gthread_flags)
2842 # Find out what GC implementation we want, or may, use.
2844 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2851 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2856 echo "Using $GGC for garbage collection."
2858 # Use the system's zlib library.
2860 zlibinc="-I\$(srcdir)/../zlib"
2861 AC_ARG_WITH(system-zlib,
2862 [ --with-system-zlib use installed libz],
2869 dnl Very limited version of automake's enable-maintainer-mode
2871 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2872 dnl maintainer-mode is disabled by default
2873 AC_ARG_ENABLE(maintainer-mode,
2874 [ --enable-maintainer-mode
2875 enable make rules and dependencies not useful
2876 (and sometimes confusing) to the casual installer],
2877 maintainer_mode=$enableval,
2880 AC_MSG_RESULT($maintainer_mode)
2882 if test "$maintainer_mode" = "yes"; then
2889 # Make empty files to contain the specs and options for each language.
2890 # Then add #include lines to for a compiler that has specs and/or options.
2895 for subdir in . $subdirs
2897 if test -f $srcdir/$subdir/lang-specs.h; then
2898 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2900 if test -f $srcdir/$subdir/lang-options.h; then
2901 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2903 if test -f $srcdir/$subdir/$subdir-tree.def; then
2904 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2908 # These (without "all_") are set in each config-lang.in.
2909 # `language' must be a single word so is spelled singularly.
2914 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2915 # List of language makefile fragments.
2917 # Files for gengtype
2918 all_gtfiles="$target_gtfiles"
2919 # Files for gengtype with language
2920 all_gtfiles_files_langs=
2921 all_gtfiles_files_files=
2923 # Add the language fragments.
2924 # Languages are added via two mechanisms. Some information must be
2925 # recorded in makefile variables, these are defined in config-lang.in.
2926 # We accumulate them and plug them into the main Makefile.
2927 # The other mechanism is a set of hooks for each of the main targets
2928 # like `clean', `install', etc.
2930 language_fragments="Make-lang"
2931 language_hooks="Make-hooks"
2933 for s in .. $subdirs
2943 . ${srcdir}/$s/config-lang.in
2944 if test "x$language" = x
2946 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2949 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2950 if test -f ${srcdir}/$s/Makefile.in
2951 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2953 all_languages="$all_languages $language"
2954 if test "x$boot_language" = xyes
2956 all_boot_languages="$all_boot_languages $language"
2958 all_compilers="$all_compilers $compilers"
2959 all_stagestuff="$all_stagestuff $stagestuff"
2960 all_outputs="$all_outputs $outputs"
2961 all_gtfiles="$all_gtfiles $gtfiles"
2962 for f in .. $gtfiles
2966 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2967 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2973 # Pick up gtfiles for c
2976 . ${srcdir}/c-config-lang.in
2977 all_gtfiles="$all_gtfiles $gtfiles"
2978 for f in .. $gtfiles
2982 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2983 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2988 for language in .. $all_languages
2990 if test $language != ".."
2992 check_languages="$check_languages check-$language"
2996 # Since we can't use `::' targets, we link each language in
2997 # with a set of hooks, reached indirectly via lang.${target}.
3001 target_list="all.build all.cross start.encap rest.encap tags \
3002 info dvi generated-manpages \
3003 install-normal install-common install-info install-man \
3005 mostlyclean clean distclean extraclean maintainer-clean \
3006 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3007 for t in $target_list
3010 for lang in .. $all_languages
3012 if test $lang != ".."; then
3016 echo "lang.$t: $x" >> Make-hooks
3021 echo "dir ." > .gdbinit
3022 echo "dir ${srcdir}" >> .gdbinit
3023 if test x$gdb_needs_out_file_path = xyes
3025 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3027 if test "x$subdirs" != x; then
3030 echo "dir ${srcdir}/$s" >> .gdbinit
3033 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3035 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3036 # absolute path for gcc_tooldir based on inserting the number of up-directory
3037 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3038 # $(libsubdir)/@(unlibsubdir) based path.
3039 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3040 # make and thus we'd get different behavior depending on where we built the
3042 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3043 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
3045 changequote(<<, >>)dnl
3046 # An explanation of the sed strings:
3047 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3048 # -e 's|/$||' match a trailing forward slash and eliminates it
3049 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3050 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3052 # (*) Note this pattern overwrites the first character of the string
3053 # with a forward slash if one is not already present. This is not a
3054 # problem because the exact names of the sub-directories concerned is
3055 # unimportant, just the number of them matters.
3057 # The practical upshot of these patterns is like this:
3059 # prefix exec_prefix result
3060 # ------ ----------- ------
3062 # /foo/ /foo/bar ../
3063 # /foo /foo/bar/ ../
3064 # /foo/ /foo/bar/ ../
3065 # /foo /foo/bar/ugg ../../
3068 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
3069 changequote([, ])dnl
3071 AC_SUBST(gcc_tooldir)
3074 # Find a directory in which to install a shared libgcc.
3076 AC_ARG_ENABLE(version-specific-runtime-libs,
3077 [ --enable-version-specific-runtime-libs
3078 specify that runtime libraries should be
3079 installed in a compiler-specific directory])
3081 AC_ARG_WITH(slibdir,
3082 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3083 slibdir="$with_slibdir",
3084 if test "${enable_version_specific_runtime_libs+set}" = set; then
3085 slibdir='$(libsubdir)'
3086 elif test "$host" != "$target"; then
3087 slibdir='$(build_tooldir)/lib'
3093 objdir=`${PWDCMD-pwd}`
3096 # Process the language and host/target makefile fragments.
3097 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
3099 # Substitute configuration variables
3102 AC_SUBST(all_boot_languages)
3103 AC_SUBST(all_compilers)
3104 AC_SUBST(all_gtfiles)
3105 AC_SUBST(all_gtfiles_files_langs)
3106 AC_SUBST(all_gtfiles_files_files)
3107 AC_SUBST(all_lang_makefiles)
3108 AC_SUBST(all_languages)
3109 AC_SUBST(all_stagestuff)
3110 AC_SUBST(build_exeext)
3111 AC_SUBST(build_install_headers_dir)
3112 AC_SUBST(build_xm_file_list)
3113 AC_SUBST(build_xm_file)
3114 AC_SUBST(build_xm_defines)
3115 AC_SUBST(check_languages)
3116 AC_SUBST(cc_set_by_configure)
3117 AC_SUBST(quoted_cc_set_by_configure)
3118 AC_SUBST(cpp_install_dir)
3119 AC_SUBST(dep_host_xmake_file)
3120 AC_SUBST(dep_tmake_file)
3121 AC_SUBST(extra_headers_list)
3122 AC_SUBST(extra_objs)
3123 AC_SUBST(extra_parts)
3124 AC_SUBST(extra_passes)
3125 AC_SUBST(extra_programs)
3126 AC_SUBST(float_h_file)
3127 AC_SUBST(gcc_config_arguments)
3128 AC_SUBST(gcc_gxx_include_dir)
3129 AC_SUBST(libstdcxx_incdir)
3130 AC_SUBST(gcc_version)
3131 AC_SUBST(gcc_version_full)
3132 AC_SUBST(gcc_version_trigger)
3133 AC_SUBST(host_exeext)
3134 AC_SUBST(host_extra_gcc_objs)
3135 AC_SUBST(host_xm_file_list)
3136 AC_SUBST(host_xm_file)
3137 AC_SUBST(host_xm_defines)
3138 AC_SUBST(out_host_hook_obj)
3140 AC_SUBST(lang_options_files)
3141 AC_SUBST(lang_specs_files)
3142 AC_SUBST(lang_tree_files)
3143 AC_SUBST(local_prefix)
3145 AC_SUBST(objc_boehm_gc)
3147 AC_SUBST(out_object_file)
3148 AC_SUBST(stage_prefix_set_by_configure)
3149 AC_SUBST(quoted_stage_prefix_set_by_configure)
3150 AC_SUBST(symbolic_link)
3151 AC_SUBST(thread_file)
3152 AC_SUBST(tm_file_list)
3154 AC_SUBST(tm_defines)
3155 AC_SUBST(tm_p_file_list)
3158 AC_SUBST(xm_defines)
3159 AC_SUBST(target_alias)
3160 AC_SUBST(c_target_objs)
3161 AC_SUBST(cxx_target_objs)
3162 AC_SUBST(target_cpu_default)
3164 AC_SUBST_FILE(target_overrides)
3165 AC_SUBST_FILE(host_overrides)
3166 AC_SUBST_FILE(language_fragments)
3167 AC_SUBST_FILE(language_hooks)
3169 # Echo that links are built
3170 if test x$host = x$target
3178 if test x$host != x$build
3180 str3=" on a $build system"
3183 if test "x$str2" != x || test "x$str3" != x
3188 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3190 if test "x$str2" != x || test "x$str3" != x
3192 echo " ${str2}${str3}." 1>&2
3195 # Configure the subdirectories
3196 # AC_CONFIG_SUBDIRS($subdirs)
3198 # Create the Makefile
3199 # and configure language subdirectories
3200 AC_OUTPUT($all_outputs,
3202 case x$CONFIG_HEADERS in
3203 xauto-host.h:config.in)
3206 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3207 # bootstrapping and the installation procedure can still use
3208 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3209 # FLAGS_TO_PASS has been modified to solve the problem there.
3210 # This is virtually a duplicate of what happens in configure.lang; we do
3211 # an extra check to make sure this only happens if ln -s can be used.
3212 if test "$symbolic_link" = "ln -s"; then
3213 for d in .. ${subdirs} fixinc ; do
3214 if test $d != ..; then
3215 STARTDIR=`${PWDCMD-pwd}`
3217 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3220 $symbolic_link ../$t $t 2>/dev/null
3226 # Avoid having to add intl to our include paths.
3227 if test -f intl/libintl.h; then
3228 echo creating libintl.h
3229 echo '#include "intl/libintl.h"' >libintl.h
3233 symbolic_link='$symbolic_link'