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;
322 default is misc,tree,gc,rtlflag],
328 ac_gc_always_collect=
329 case "${enableval}" in
330 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
331 ac_rtlflag_checking=1 ;;
333 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
334 set fnord $enableval; shift
339 misc) ac_checking=1 ;;
340 tree) ac_tree_checking=1 ;;
341 rtlflag) ac_rtlflag_checking=1 ;;
342 rtl) ac_rtl_checking=1 ;;
343 gc) ac_gc_checking=1 ;;
344 gcac) ac_gc_always_collect=1 ;;
345 valgrind) ac_checking_valgrind=1 ;;
346 *) AC_MSG_ERROR(unknown check category $check) ;;
352 # Enable some checks by default for development versions of GCC
353 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
355 if test x$ac_checking != x ; then
356 AC_DEFINE(ENABLE_CHECKING, 1,
357 [Define if you want more run-time sanity checks. This one gets a grab
358 bag of miscellaneous but relatively cheap checks.])
359 nocommon_flag=-fno-common
361 AC_SUBST(nocommon_flag)
362 if test x$ac_tree_checking != x ; then
363 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
364 [Define if you want all operations on trees (the basic data
365 structure of the front ends) to be checked for dynamic type safety
366 at runtime. This is moderately expensive.])
368 if test x$ac_rtl_checking != x ; then
369 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
370 [Define if you want all operations on RTL (the basic data structure
371 of the optimizer and back end) to be checked for dynamic type safety
372 at runtime. This is quite expensive.])
374 if test x$ac_rtlflag_checking != x ; then
375 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
376 [Define if you want RTL flag accesses to be checked against the RTL
377 codes that are supported for each access macro. This is relatively
380 if test x$ac_gc_checking != x ; then
381 AC_DEFINE(ENABLE_GC_CHECKING, 1,
382 [Define if you want the garbage collector to do object poisoning and
383 other memory allocation checks. This is quite expensive.])
385 if test x$ac_gc_always_collect != x ; then
386 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
387 [Define if you want the garbage collector to operate in maximally
388 paranoid mode, validating the entire heap and collecting garbage at
389 every opportunity. This is extremely expensive.])
391 valgrind_path_defines=
393 if test x$ac_checking_valgrind != x ; then
394 # It is certainly possible that there's valgrind but no valgrind.h.
395 # GCC relies on making annotations so we must have both.
396 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
398 [#include <memcheck.h>
399 #ifndef VALGRIND_DISCARD
400 #error VALGRIND_DISCARD not defined
402 [gcc_cv_header_memcheck_h=yes],
403 gcc_cv_header_memcheck_h=no)
404 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
405 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
406 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
407 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
408 if test "x$valgrind_path" = "x" || (test $have_valgrind_h = no && test $gcc_cv_header_memcheck_h = no); then
409 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h/memcheck.h])
411 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
412 valgrind_command="$valgrind_path -q"
413 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
414 [Define if you want to run subprograms and generated programs
415 through valgrind (a memory checker). This is extremely expensive.])
416 if test $gcc_cv_header_memcheck_h = yes; then
417 AC_DEFINE(HAVE_MEMCHECK_H, 1,
418 [Define if valgrind's memcheck.h header is installed.])
421 AC_SUBST(valgrind_path_defines)
422 AC_SUBST(valgrind_command)
424 # Enable code coverage collection
425 AC_ARG_ENABLE(coverage,
426 [ --enable-coverage[=LEVEL]
427 enable compiler\'s code coverage collection.
428 Use to measure compiler performance and locate
429 unused parts of the compiler. With LEVEL, specify
430 optimization. Values are opt, noopt,
432 [case "${enableval}" in
434 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
437 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
440 AC_MSG_ERROR(unknown coverage setting $enableval)
444 AC_SUBST(coverage_flags)
446 # -------------------------------
447 # Miscenalleous configure options
448 # -------------------------------
452 [ --with-stabs arrange to use stabs instead of host debug format],
458 [ --with-elf arrange to use ELF instead of host debug format],
462 # Determine whether or not multilibs are enabled.
463 AC_ARG_ENABLE(multilib,
464 [ --enable-multilib enable library support for multiple ABIs],
465 [], [enable_multilib=yes])
466 AC_SUBST(enable_multilib)
468 # Enable __cxa_atexit for C++.
469 AC_ARG_ENABLE(__cxa_atexit,
470 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
474 # Pass with no value to take the default
475 # Pass with a value to specify a thread package
476 AC_ARG_ENABLE(threads,
477 [ --enable-threads enable thread usage for target GCC
478 --enable-threads=LIB use LIB thread package for target GCC],,
481 enable_threads_flag=$enable_threads
482 # Check if a valid thread package
483 case x${enable_threads_flag} in
486 target_thread_file='single'
490 target_thread_file=''
492 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
493 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix | xgnat)
494 target_thread_file=$enable_threads_flag
497 echo "$enable_threads is an unknown thread package" 1>&2
502 AC_ARG_ENABLE(objc-gc,
503 [ --enable-objc-gc enable the use of Boehm's garbage collector with
504 the GNU Objective-C runtime],
505 if test x$enable_objc_gc = xno; then
513 [ --with-dwarf2 force the default debug format to be DWARF 2],
514 dwarf2="$with_dwarf2",
517 AC_ARG_ENABLE(shared,
518 [ --disable-shared don't provide a shared libgcc],
520 case $enable_shared in
524 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
525 for pkg in $enableval; do
526 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
533 ], [enable_shared=yes])
534 AC_SUBST(enable_shared)
537 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
539 case ${with_sysroot} in
540 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
541 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
544 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
545 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
547 if test "x$exec_prefix" = xNONE; then
548 if test "x$prefix" = xNONE; then
549 test_prefix=/usr/local
554 test_prefix=$exec_prefix
556 case ${TARGET_SYSTEM_ROOT} in
557 "${test_prefix}"|"${test_prefix}/"*|\
558 '${exec_prefix}'|'${exec_prefix}/'*)
559 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
560 TARGET_SYSTEM_ROOT_DEFINE="$t"
565 TARGET_SYSTEM_ROOT_DEFINE=
566 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
568 AC_SUBST(TARGET_SYSTEM_ROOT)
569 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
570 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
572 # Build with intermodule optimisations
573 AC_ARG_ENABLE(intermodule,
574 [ --enable-intermodule build the compiler in one step],
575 [case "${enable_intermodule}" in
576 yes) onestep=-onestep : ;;
581 # -------------------------
582 # Checks for other programs
583 # -------------------------
587 # Find some useful tools
594 # See if we have the mktemp command.
595 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
597 # Do we have a single-tree copy of texinfo?
598 if test -f $srcdir/../texinfo/Makefile.in; then
599 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
600 gcc_cv_prog_makeinfo_modern=yes
601 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
603 # See if makeinfo has been installed and is modern enough
604 # that we can use it.
605 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
606 [GNU texinfo.* \([0-9][0-9.]*\)],
610 if test $gcc_cv_prog_makeinfo_modern = no; then
612 *** Makeinfo is missing or too old.
613 *** Info documentation will not be built.])
616 BUILD_INFO=info AC_SUBST(BUILD_INFO)
619 # Is pod2man recent enough to regenerate manpages?
620 AC_MSG_CHECKING([for recent Pod::Man])
621 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
623 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
629 # 'make compare' can be significantly faster, if cmp itself can
630 # skip bytes instead of using tail. The test being performed is
631 # "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
632 # but we need to sink errors and handle broken shells.
633 AC_MSG_CHECKING([for cmp's capabilities])
636 if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
637 if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
638 make_compare_target=slowcompare
640 make_compare_target=gnucompare
643 make_compare_target=slowcompare
646 AC_SUBST(make_compare_target)
647 AC_MSG_RESULT($make_compare_target)
650 dnl Don't use AC_PROG_LEX; we insist on flex.
651 dnl LEXLIB is not useful in gcc.
652 if test -f $srcdir/../flex/skel.c; then
653 FLEX='$(objdir)/../flex/flex'
655 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
659 # The -L switch is so bison can find its skeleton file.
660 if test -f $srcdir/../bison/bison.simple; then
661 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
663 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
666 # --------------------
667 # Checks for C headers
668 # --------------------
670 AC_MSG_CHECKING(for GNU C library)
671 AC_CACHE_VAL(gcc_cv_glibc,
673 [#include <features.h>],[
674 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
675 #error Not a GNU C library system
679 AC_MSG_RESULT($gcc_cv_glibc)
680 if test $gcc_cv_glibc = yes; then
681 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
686 gcc_AC_HEADER_STDBOOL
689 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
690 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
691 sys/resource.h sys/param.h sys/times.h sys/stat.h \
692 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
694 # Check for thread headers.
695 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
696 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
698 # These tests can't be done till we know if we have limits.h.
706 # Stage specific cflags for build.
712 stage1_cflags="-Wa,-J"
718 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
719 # sources; use -no-cpp-precomp to get to GNU cpp.
720 # Apple's GCC has bugs in designated initializer handling, so disable
722 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
725 AC_SUBST(stage1_cflags)
727 # These libraries may be used by collect2.
728 # We may need a special search path to get them linked.
729 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
731 for libs in '' -lld -lmld \
732 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
733 '-L/usr/lib/cmplrs/cc3.11 -lmld'
736 AC_TRY_LINK_FUNC(ldopen,
737 [gcc_cv_collect2_libs="$libs"; break])
740 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
741 case $gcc_cv_collect2_libs in
743 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
745 AC_SUBST(COLLECT2_LIBS)
747 # When building Ada code on Alpha, we need exc_resume which is usually in
748 # -lexc. So test for it.
751 AC_SEARCH_LIBS(exc_resume, exc)
754 AC_SUBST(GNAT_LIBEXC)
756 # Some systems put ldexp and frexp in libm instead of libc; assume
757 # they're both in the same place. jcf-dump needs them.
760 AC_SEARCH_LIBS(ldexp, m)
765 # Use <inttypes.h> only if it exists,
766 # doesn't clash with <sys/types.h>, and declares intmax_t.
767 AC_MSG_CHECKING(for inttypes.h)
768 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
770 [#include <sys/types.h>
771 #include <inttypes.h>],
773 [gcc_cv_header_inttypes_h=yes],
774 gcc_cv_header_inttypes_h=no)])
775 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
776 if test $gcc_cv_header_inttypes_h = yes; then
777 AC_DEFINE(HAVE_INTTYPES_H, 1,
778 [Define if you have a working <inttypes.h> header file.])
781 dnl Disabled until we have a complete test for buggy enum bitfields.
782 dnl gcc_AC_C_ENUM_BF_UNSIGNED
784 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
785 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
786 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
787 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
790 if test x$ac_cv_func_mbstowcs = xyes; then
791 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
792 [ AC_TRY_RUN([#include <stdlib.h>
798 gcc_cv_func_mbstowcs_works=yes,
799 gcc_cv_func_mbstowcs_works=no,
800 gcc_cv_func_mbstowcs_works=yes)])
801 if test x$gcc_cv_func_mbstowcs_works = xyes; then
802 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
803 [Define this macro if mbstowcs does not crash when its
804 first argument is NULL.])
808 gcc_AC_CHECK_TYPE(ssize_t, int)
810 # Try to determine the array type of the second argument of getgroups
811 # for the target system (int or gid_t).
813 if test "${target}" = "${build}"; then
814 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
817 # This condition may need some tweaking. It should include all
818 # targets where the array type of the second argument of getgroups
819 # is int and the type of gid_t is not equivalent to int.
820 *-*-sunos* | *-*-ultrix*)
821 TARGET_GETGROUPS_T=int
824 TARGET_GETGROUPS_T=gid_t
828 AC_SUBST(TARGET_GETGROUPS_T)
830 gcc_AC_FUNC_PRINTF_PTR
831 gcc_AC_FUNC_MMAP_BLACKLIST
836 *** UWIN may not be used as a host platform because
837 *** linking with posix.dll is not allowed by the GNU GPL])
840 # Under VMS, vfork works very different than on Unix. The standard test
841 # won't work, and it isn't easily adaptable. It makes more sense to
843 ac_cv_func_vfork_works=yes
849 # Until we have in-tree GNU iconv:
851 AC_SUBST(LIBICONV_DEP)
855 # We will need to find libiberty.h and ansidecl.h
856 saved_CFLAGS="$CFLAGS"
857 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
858 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
859 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
860 fprintf_unlocked strstr errno vasprintf \
861 malloc realloc calloc free basename getopt clock, , ,[
862 #include "ansidecl.h"
863 #include "system.h"])
865 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
866 #include "ansidecl.h"
868 #ifdef HAVE_SYS_RESOURCE_H
869 #include <sys/resource.h>
874 #include "ansidecl.h"
876 #ifdef HAVE_SYS_RESOURCE_H
877 #include <sys/resource.h>
879 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
880 [Define to \`long' if <sys/resource.h> doesn't define.])])
882 gcc_AC_CHECK_DECLS(ldgetname, , ,[
883 #include "ansidecl.h"
890 gcc_AC_CHECK_DECLS(times, , ,[
891 #include "ansidecl.h"
893 #ifdef HAVE_SYS_TIMES_H
894 #include <sys/times.h>
898 # More time-related stuff.
899 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
901 #include "ansidecl.h"
903 #ifdef HAVE_SYS_TIMES_H
904 #include <sys/times.h>
906 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
907 if test $ac_cv_struct_tms = yes; then
908 AC_DEFINE(HAVE_STRUCT_TMS, 1,
909 [Define if <sys/times.h> defines struct tms.])
912 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
913 # revisit after autoconf 2.50.
914 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
916 #include "ansidecl.h"
918 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
919 if test $gcc_cv_type_clock_t = yes; then
920 AC_DEFINE(HAVE_CLOCK_T, 1,
921 [Define if <time.h> defines clock_t.])
924 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
926 #include "ansidecl.h"
929 [if ((uchar *)0) return 0;
930 if (sizeof(uchar)) return 0;],
931 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
932 if test $ac_cv_type_uchar = yes; then
933 AC_DEFINE(HAVE_UCHAR, 1,
934 [Define if <sys/types.h> defines \`uchar'.])
937 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
938 CFLAGS="$saved_CFLAGS"
940 gcc_AC_INITFINI_ARRAY
942 # mkdir takes a single argument on some systems.
943 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
951 # With Setjmp/Longjmp based exception handling.
952 AC_ARG_ENABLE(sjlj-exceptions,
953 [ --enable-sjlj-exceptions
954 arrange to use setjmp/longjmp exception handling],
955 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
956 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
957 [Define 0/1 to force the choice for exception handling model.])])
959 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
960 # Use libunwind based exception handling.
961 AC_ARG_ENABLE(libunwind-exceptions,
962 [ --enable-libunwind-exceptions force use libunwind for exceptions],
963 use_libunwind_exceptions=$enableval,
964 use_libunwind_exceptions=$use_libunwind_default)
965 if test x"$use_libunwind_exceptions" = xyes; then
966 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
967 [Define if gcc should use -lunwind.])
970 # --------------------------------------------------------
971 # Build, host, and target specific configuration fragments
972 # --------------------------------------------------------
977 build_install_headers_dir=install-headers-tar
984 # Decode the host machine, then the target machine.
985 # For the host machine, we save the xm_file variable as host_xm_file;
986 # then we decode the target machine and forget everything else
987 # that came from the host machine.
988 for machine in $build $host $target; do
989 . ${srcdir}/config.gcc
992 extra_objs="${host_extra_objs} ${extra_objs}"
994 # Default the target-machine variables that were not explicitly set.
995 if test x"$tm_file" = x
996 then tm_file=$cpu_type/$cpu_type.h; fi
998 if test x"$extra_headers" = x
999 then extra_headers=; fi
1001 if test x$md_file = x
1002 then md_file=$cpu_type/$cpu_type.md; fi
1004 if test x$out_file = x
1005 then out_file=$cpu_type/$cpu_type.c; fi
1007 if test x"$tmake_file" = x
1008 then tmake_file=$cpu_type/t-$cpu_type
1011 if test x"$dwarf2" = xyes
1012 then tm_file="$tm_file tm-dwarf2.h"
1015 # Say what files are being used for the output code and MD file.
1016 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1017 echo "Using \`$srcdir/config/$md_file' as machine description file."
1019 # If any of the xm_file variables contain nonexistent files, warn
1020 # about them and drop them.
1023 for x in $build_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 $host_xm_file; do
1033 if test -f $srcdir/config/$x
1035 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1041 for x in $xm_file; do
1042 if test -f $srcdir/config/$x
1044 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1050 for f in $tm_file; do
1053 if test $count = ax; then
1054 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1056 echo "Using the following target machine macro files:"
1057 for f in $tm_file; do
1058 echo " $srcdir/config/$f"
1062 if test x$need_64bit_hwint = xyes; then
1063 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1064 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1068 for f in $host_xm_file; do
1071 if test $count = a; then
1073 elif test $count = ax; then
1074 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1076 echo "Using the following host machine macro files:"
1077 for f in $host_xm_file; do
1078 echo " $srcdir/config/$f"
1081 echo "Using ${out_host_hook_obj} for host machine hooks."
1083 if test "$host_xm_file" != "$build_xm_file"; then
1085 for f in $build_xm_file; do
1088 if test $count = a; then
1090 elif test $count = ax; then
1091 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1093 echo "Using the following build machine macro files:"
1094 for f in $build_xm_file; do
1095 echo " $srcdir/config/$f"
1100 if test x$thread_file = x; then
1101 if test x$target_thread_file != x; then
1102 thread_file=$target_thread_file
1104 thread_file='single'
1108 if test x$enable___cxa_atexit = xyes || \
1109 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1110 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1111 [Define if you want to use __cxa_atexit, rather than atexit, to
1112 register C++ destructors for local statics and global objects.
1113 This is essential for fully standards-compliant handling of
1114 destructors, but requires __cxa_atexit in libc.])
1117 # Look for a file containing extra machine modes.
1118 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1119 extra_modes_file='$(srcdir)'/config/${extra_modes}
1120 AC_SUBST(extra_modes_file)
1121 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1122 [Define to the name of a file containing a list of extra machine modes
1123 for this architecture.])
1124 AC_DEFINE(EXTRA_CC_MODES, 1,
1125 [Define if the target architecture needs extra machine modes to represent
1126 the results of comparisons.])
1129 # auto-host.h is the file containing items generated by autoconf and is
1130 # the first file included by config.h.
1131 # If host=build, it is correct to have bconfig include auto-host.h
1132 # as well. If host!=build, we are in error and need to do more
1133 # work to find out the build config parameters.
1134 if test x$host = x$build
1136 build_auto=auto-host.h
1139 # We create a subdir, then run autoconf in the subdir.
1140 # To prevent recursion we set host and build for the new
1141 # invocation of configure to the build for this invocation
1148 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1149 *) realsrcdir=../${srcdir};;
1151 saved_CFLAGS="${CFLAGS}"
1152 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1153 ${realsrcdir}/configure \
1154 --target=$target_alias --host=$build_alias --build=$build_alias
1155 CFLAGS="${saved_CFLAGS}"
1157 # We just finished tests for the build machine, so rename
1158 # the file auto-build.h in the gcc directory.
1159 mv auto-host.h ../auto-build.h
1162 build_auto=auto-build.h
1163 FORBUILD=../${build_subdir}
1167 tm_file="${tm_file} defaults.h"
1168 tm_p_file="${tm_p_file} tm-preds.h"
1169 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1170 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1171 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1172 # put this back in temporarily.
1173 xm_file="ansidecl.h ${xm_file}"
1179 # Get the version trigger filename from the toplevel
1180 if test "${with_gcc_version_trigger+set}" = set; then
1181 gcc_version_trigger=$with_gcc_version_trigger
1183 gcc_version_trigger=${srcdir}/version.c
1186 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1187 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1189 # Compile in configure arguments.
1190 if test -f configargs.h ; then
1191 # Being re-configured.
1192 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1193 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1195 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1197 cat > configargs.h <<EOF
1198 /* Generated automatically. */
1199 static const char configuration_arguments[] = "$gcc_config_arguments";
1200 static const char thread_model[] = "$thread_file";
1202 static const struct {
1203 const char *name, *value;
1204 } configure_default_options[] = $configure_default_options;
1208 # Internationalization
1210 VERSION="$gcc_version"
1214 ZW_GNU_GETTEXT_SISTER_DIR
1216 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1217 # -liconv on the link line twice.
1218 case "$LIBINTL" in *$LIBICONV*)
1222 # Windows32 Registry support for specifying GCC installation paths.
1223 AC_ARG_ENABLE(win32-registry,
1224 [ --disable-win32-registry
1225 disable lookup of installation paths in the
1226 Registry on Windows hosts
1227 --enable-win32-registry enable registry lookup (default)
1228 --enable-win32-registry=KEY
1229 use KEY instead of GCC version as the last portion
1230 of the registry key],,)
1232 win32 | pe | cygwin* | mingw32* | uwin*)
1233 AC_MSG_CHECKING(whether windows registry support is requested)
1234 if test "x$enable_win32_registry" != xno; then
1235 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1236 [Define to 1 if installation paths should be looked up in Windows32
1237 Registry. Ignored on non windows32 hosts.])
1239 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1244 # Check if user specified a different registry key.
1245 case "x${enable_win32_registry}" in
1248 gcc_cv_win32_registry_key="$VERSION"
1251 # no registry lookup.
1252 gcc_cv_win32_registry_key=''
1255 # user-specified key.
1256 gcc_cv_win32_registry_key="$enable_win32_registry"
1260 if test "x$enable_win32_registry" != xno; then
1261 AC_MSG_CHECKING(registry key on windows hosts)
1262 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1263 [Define to be the last portion of registry key on windows hosts.])
1264 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1269 # Get an absolute path to the GCC top-level source directory
1270 holddir=`${PWDCMD-pwd}`
1272 topdir=`${PWDCMD-pwd}`
1275 # Conditionalize the makefile for this host machine.
1276 # Make-host contains the concatenation of all host makefile fragments
1277 # [there can be more than one]. This file is built by configure.frag.
1278 host_overrides=Make-host
1279 dep_host_xmake_file=
1280 for f in .. ${host_xmake_file}
1282 if test -f ${srcdir}/config/$f
1284 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1288 # Conditionalize the makefile for this target machine.
1289 # Make-target contains the concatenation of all host makefile fragments
1290 # [there can be more than one]. This file is built by configure.frag.
1291 target_overrides=Make-target
1293 for f in .. ${tmake_file}
1295 if test -f ${srcdir}/config/$f
1297 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1301 symbolic_link='ln -s'
1303 # If the host doesn't support symlinks, modify CC in
1304 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1305 # Otherwise, we can use "CC=$(CC)".
1307 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1309 cc_set_by_configure="\$(CC)"
1310 quoted_cc_set_by_configure="\$(CC)"
1311 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1312 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1315 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1317 symbolic_link="cp -p"
1321 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1322 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1323 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1324 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1328 out_object_file=`basename $out_file .c`.o
1331 for f in $tm_file; do
1334 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1336 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1337 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1342 for f in $tm_p_file; do
1345 tm_p_file_list="${tm_p_file_list} $f" ;;
1346 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1351 for f in $host_xm_file; do
1354 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1356 host_xm_file_list="${host_xm_file_list} $f" ;;
1358 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1359 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1364 for f in $build_xm_file; do
1367 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1368 auto-build.h | auto-host.h )
1369 build_xm_file_list="${build_xm_file_list} $f" ;;
1371 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1372 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1376 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1377 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1378 CROSS= AC_SUBST(CROSS)
1379 ALL=all.internal AC_SUBST(ALL)
1380 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1381 if test x$host != x$target
1383 CROSS="-DCROSS_COMPILE"
1385 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1386 case "$host","$target" in
1387 i?86-*-*,x86_64-*-* \
1388 | powerpc*-*-*,powerpc64*-*-*)
1389 CROSS="$CROSS -DNATIVE_CROSS" ;;
1391 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1392 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1393 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1396 # If this is a cross-compiler that does not
1397 # have its own set of headers then define
1400 # If this is using newlib, without having the headers available now,
1401 # then define inhibit_libc in LIBGCC2_CFLAGS.
1402 # This prevents libgcc2 from containing any code which requires libc
1405 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1406 test x$with_newlib = xyes ; } &&
1407 test "x$with_headers" = x ; then
1408 inhibit_libc=-Dinhibit_libc
1410 AC_SUBST(inhibit_libc)
1412 # When building gcc with a cross-compiler, we need to adjust things so
1413 # that the generator programs are still built with the native compiler.
1414 # Also, we cannot run fixincludes or fix-header.
1416 # These are the normal (build=host) settings:
1417 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1418 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1419 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1420 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1422 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1423 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1425 # And these apply if build != host, or we are generating coverage data
1426 if test x$build != x$host || test "x$coverage_flags" != x
1429 BUILD_PREFIX_1=build-
1430 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1432 if test "x$TARGET_SYSTEM_ROOT" = x; then
1438 # Expand extra_headers to include complete path.
1439 # This substitutes for lots of t-* files.
1441 if test "x$extra_headers" = x
1444 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1445 for file in $extra_headers;
1447 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1451 # Add a definition of USE_COLLECT2 if system wants one.
1452 case $use_collect2 in
1453 no) use_collect2= ;;
1456 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1457 xm_defines="${xm_defines} USE_COLLECT2"
1461 # Identify the assembler which will work hand-in-glove with the newly
1462 # built GCC, so that we can examine its features. This is the assembler
1463 # which will be driven by the driver program.
1465 # If build != host, and we aren't building gas in-tree, we identify a
1466 # build->target assembler and hope that it will have the same features
1467 # as the host->target assembler we'll be using.
1468 AC_MSG_CHECKING(what assembler to use)
1471 gcc_cv_gas_major_version=
1472 gcc_cv_gas_minor_version=
1473 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1474 if test -x "$DEFAULT_ASSEMBLER"; then
1475 gcc_cv_as="$DEFAULT_ASSEMBLER"
1476 elif test -x "$AS"; then
1478 elif test -x as$host_exeext; then
1479 # Build using assembler in the current directory.
1480 gcc_cv_as=./as$host_exeext
1481 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1482 && test -f ../gas/Makefile; then
1483 # Single tree build which includes gas.
1485 _gcc_COMPUTE_GAS_VERSION
1486 rm -f as$host_exeext
1487 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1488 in_tree_gas_is_elf=no
1489 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1490 || (grep 'obj_format = multi' ../gas/Makefile \
1491 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1493 in_tree_gas_is_elf=yes
1497 if test "x$gcc_cv_as" = x; then
1498 # Search the same directories that the installed compiler will
1499 # search. Else we may find the wrong assembler and lose. If we
1500 # do not find a suitable assembler binary, then try the user's
1503 # Also note we have to check MD_EXEC_PREFIX before checking the
1504 # user's path. Unfortunately, there is no good way to get at the
1505 # value of MD_EXEC_PREFIX here. So we do a brute force search
1506 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1507 # to be fixed as part of the make/configure rewrite too.
1509 if test "x$exec_prefix" = xNONE; then
1510 if test "x$prefix" = xNONE; then
1511 test_prefix=/usr/local
1516 test_prefix=$exec_prefix
1519 # If the loop below does not find an assembler, then use whatever
1520 # one we can find in the users's path.
1522 if test "x$program_prefix" != xNONE; then
1523 gcc_cv_as=${program_prefix}as$host_exeext
1525 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1528 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1529 $test_prefix/lib/gcc-lib/$target_alias \
1530 /usr/lib/gcc/$target_alias/$gcc_version \
1531 /usr/lib/gcc/$target_alias \
1532 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1533 $test_prefix/$target_alias/bin"
1535 if test x$host = x$target; then
1536 test_dirs="$test_dirs \
1541 /bsd43/usr/lib/cmplrs/cc \
1542 /usr/cross64/usr/bin \
1543 /usr/lib/cmplrs/cc \
1544 /sysv/usr/lib/cmplrs/cc \
1545 /svr4/usr/lib/cmplrs/cc \
1549 for dir in $test_dirs; do
1550 if test -x $dir/as$host_exeext; then
1551 gcc_cv_as=$dir/as$host_exeext
1556 case $in_tree_gas in
1558 AC_MSG_RESULT("newly built gas")
1561 AC_MSG_RESULT($gcc_cv_as)
1565 # Identify the linker which will work hand-in-glove with the newly
1566 # built GCC, so that we can examine its features. This is the linker
1567 # which will be driven by the driver program.
1569 # If build != host, and we aren't building gas in-tree, we identify a
1570 # build->target linker and hope that it will have the same features
1571 # as the host->target linker we'll be using.
1572 AC_MSG_CHECKING(what linker to use)
1575 gcc_cv_gld_major_version=
1576 gcc_cv_gld_minor_version=
1577 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1578 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1579 if test -x "$DEFAULT_LINKER"; then
1580 gcc_cv_ld="$DEFAULT_LINKER"
1581 elif test -x "$LD"; then
1583 elif test -x collect-ld$host_exeext; then
1584 # Build using linker in the current directory.
1585 gcc_cv_ld=./collect-ld$host_exeext
1586 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1587 && test -f ../ld/Makefile; then
1588 # Single tree build which includes ld.
1590 in_tree_ld_is_elf=no
1591 if (grep 'EMUL = .*elf' ../ld/Makefile \
1592 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1593 in_tree_ld_is_elf=yes
1595 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
1598 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1600 if test x$gcc_cv_gld_version != x; then
1605 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1606 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1608 rm -f collect-ld$host_exeext
1609 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1613 if test "x$gcc_cv_ld" = x; then
1614 # Search the same directories that the installed compiler will
1615 # search. Else we may find the wrong linker and lose. If we
1616 # do not find a suitable linker binary, then try the user's
1619 # Also note we have to check MD_EXEC_PREFIX before checking the
1620 # user's path. Unfortunately, there is no good way to get at the
1621 # value of MD_EXEC_PREFIX here. So we do a brute force search
1622 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1623 # to be fixed as part of the make/configure rewrite too.
1625 if test "x$exec_prefix" = xNONE; then
1626 if test "x$prefix" = xNONE; then
1627 test_prefix=/usr/local
1632 test_prefix=$exec_prefix
1635 # If the loop below does not find an linker, then use whatever
1636 # one we can find in the users's path.
1638 if test "x$program_prefix" != xNONE; then
1639 gcc_cv_ld=${program_prefix}ld$host_exeext
1641 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1644 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1645 $test_prefix/lib/gcc-lib/$target_alias \
1646 /usr/lib/gcc/$target_alias/$gcc_version \
1647 /usr/lib/gcc/$target_alias \
1648 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1649 $test_prefix/$target_alias/bin"
1651 if test x$host = x$target; then
1652 test_dirs="$test_dirs \
1657 /bsd43/usr/lib/cmplrs/cc \
1658 /usr/cross64/usr/bin \
1659 /usr/lib/cmplrs/cc \
1660 /sysv/usr/lib/cmplrs/cc \
1661 /svr4/usr/lib/cmplrs/cc \
1665 for dir in $test_dirs; do
1666 if test -x $dir/ld$host_exeext; then
1667 gcc_cv_ld=$dir/ld$host_exeext
1674 AC_MSG_RESULT("newly built ld")
1677 AC_MSG_RESULT($gcc_cv_ld)
1681 # Figure out what nm we will be using.
1682 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1683 AC_MSG_CHECKING(what nm to use)
1685 if test -x nm$host_exeext; then
1686 gcc_cv_nm=./nm$host_exeext
1687 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1688 && test -f ../binutils/Makefile; then
1689 # Single tree build which includes binutils.
1691 gcc_cv_nm=./nm$host_exeext
1692 rm -f nm$host_exeext
1693 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1694 elif test "x$program_prefix" != xNONE; then
1695 gcc_cv_nm=${program_prefix}nm$host_exeext
1697 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1700 yes) AC_MSG_RESULT("newly built nm") ;;
1701 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1704 # Figure out what objdump we will be using.
1705 AC_MSG_CHECKING(what objdump to use)
1707 if test -x objdump$host_exeext; then
1708 gcc_cv_objdump=./objdump$host_exeext
1709 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1710 && test -f ../binutils/Makefile; then
1711 # Single tree build which includes binutils.
1713 gcc_cv_objdump=./objdump$host_exeext
1714 rm -f objdump$host_exeext
1715 $symbolic_link ../binutils/objdump$host_exeext \
1716 objdump$host_exeext 2>/dev/null
1717 elif test "x$program_prefix" != xNONE; then
1718 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1720 gcc_cv_objdump=`echo objdump | \
1721 sed ${program_transform_name}`$host_exeext
1723 case $in_tree_objdump in
1724 yes) AC_MSG_RESULT("newly built objdump") ;;
1725 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1728 # Figure out what assembler alignment features are present.
1729 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1733 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1734 [Define if your assembler supports .balign and .p2align.])])
1736 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1739 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1740 [Define if your assembler supports specifying the maximum number
1741 of bytes to skip when using the GAS .p2align command.])])
1743 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1745 [conftest_label1: .word 0
1747 conftest_label2: .word 0
1749 [if test x$gcc_cv_nm != x; then
1750 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1751 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1752 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1754 else gcc_cv_as_subsection_m1=yes
1756 rm -f conftest.nm1 conftest.nm2
1758 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1759 [Define if your assembler supports .subsection and .subsection -1 starts
1760 emitting at the beginning of your section.])])
1762 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1765 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1767 # .hidden needs to be supported in both the assembler and the linker,
1768 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1769 # This is irritatingly difficult to feature test for; we have to check the
1770 # date string after the version number. If we've got an in-tree
1771 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1773 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1774 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1779 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1780 [if test $in_tree_ld = yes ; then
1782 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1783 && test $in_tree_ld_is_elf = yes; then
1784 gcc_cv_ld_hidden=yes
1787 gcc_cv_ld_hidden=yes
1788 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1789 if echo "$ld_ver" | grep GNU > /dev/null; then
1791 ld_vers=`echo $ld_ver | sed -n \
1792 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1793 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1794 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1795 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1796 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1797 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1798 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1799 if test 0"$ld_date" -lt 20020404; then
1800 if test -n "$ld_date"; then
1801 # If there was date string, but was earlier than 2002-04-04, fail
1803 elif test -z "$ld_vers"; then
1804 # If there was no date string nor ld version number, something is wrong
1807 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1808 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1809 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1810 test -z "$ld_vers_patch" && ld_vers_patch=0
1811 if test "$ld_vers_major" -lt 2; then
1813 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1814 gcc_cv_ld_hidden="no"
1815 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1824 if test x"$gnu_ld_flag" = x"no"; then
1825 # Even if using gas with .hidden support, the resulting object files
1826 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1827 # N64 linkers, the problem is that the linker refuses to accept
1828 # -call_shared (passed by default to the linker) and -r (used to
1829 # link the object file generated without .hidden directives with
1830 # one that hides symbols), so we also lose.
1837 libgcc_visibility=no
1838 AC_SUBST(libgcc_visibility)
1839 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden=yes; then
1840 libgcc_visibility=yes
1841 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1842 [Define if your assembler and linker support .hidden.])
1845 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1846 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1854 [# GAS versions before 2.11 do not support uleb128,
1855 # despite appearing to.
1856 # ??? There exists an elf-specific test that will crash
1857 # the assembler. Perhaps it's better to figure out whether
1858 # arbitrary sections are supported and try the test.
1859 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1860 if echo "$as_ver" | grep GNU > /dev/null; then
1862 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1863 as_major=`echo $as_ver | sed 's/\..*//'`
1864 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1866 if test $as_major -eq 2 && test $as_minor -lt 11
1868 else gcc_cv_as_leb128=yes
1871 [AC_DEFINE(HAVE_AS_LEB128, 1,
1872 [Define if your assembler supports .sleb128 and .uleb128.])])
1874 # GAS versions up to and including 2.11.0 may mis-optimize
1876 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
1884 .section .eh_frame,"aw",@progbits
1886 .4byte .LECIE1-.LSCIE1
1900 .4byte .LEFDE1-.LASFDE1
1902 .4byte .LASFDE1-__FRAME_BEGIN__
1910 [ cat > conftest.lit <<EOF
1911 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1912 0010 01000000 12000000 18000000 00000000 ................
1913 0020 08000000 04080000 0044 .........D
1915 cat > conftest.big <<EOF
1916 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1917 0010 00000001 00000012 00000018 00000000 ................
1918 0020 00000008 04000000 0844 .........D
1920 # If the assembler didn't choke, and we can objdump,
1921 # and we got the correct data, then succeed.
1922 if test x$gcc_cv_objdump != x \
1923 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1924 | tail -3 > conftest.got \
1925 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1926 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1928 gcc_cv_as_eh_frame=yes
1929 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
1930 gcc_cv_as_eh_frame=buggy
1932 # Uh oh, what do we do now?
1933 gcc_cv_as_eh_frame=no
1936 if test $gcc_cv_as_eh_frame = buggy; then
1937 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1938 [Define if your assembler mis-optimizes .eh_frame data.])
1941 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
1942 [elf,2,12,0], [--fatal-warnings],
1943 [.section .rodata.str, "aMS", @progbits, 1],,
1944 [AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1945 [Define if your assembler supports marking sections with SHF_MERGE flag.])])
1947 # Thread-local storage - the check is heavily parametrized.
1956 .section ".tdata","awT",@progbits
1959 ldq $27,__tls_get_addr($29) !literal!1
1960 lda $16,foo($29) !tlsgd!1
1961 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
1962 ldq $27,__tls_get_addr($29) !literal!2
1963 lda $16,foo($29) !tlsldm!2
1964 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
1965 ldq $1,foo($29) !gotdtprel
1966 ldah $2,foo($29) !dtprelhi
1967 lda $3,foo($2) !dtprello
1968 lda $4,foo($29) !dtprel
1969 ldq $1,foo($29) !gottprel
1970 ldah $2,foo($29) !tprelhi
1971 lda $3,foo($2) !tprello
1972 lda $4,foo($29) !tprel'
1979 .section ".tdata","awT",@progbits
1983 leal foo@TLSGD(,%ebx,1), %eax
1984 leal foo@TLSLDM(%ebx), %eax
1985 leal foo@DTPOFF(%eax), %edx
1986 movl foo@GOTTPOFF(%ebx), %eax
1987 subl foo@GOTTPOFF(%ebx), %eax
1988 addl foo@GOTNTPOFF(%ebx), %eax
1989 movl foo@INDNTPOFF, %eax
1990 movl $foo@TPOFF, %eax
1991 subl $foo@TPOFF, %eax
1992 leal foo@NTPOFF(%ecx), %eax'
1998 .section ".tdata","awT",@progbits
2002 leaq foo@TLSGD(%rip), %rdi
2003 leaq foo@TLSLD(%rip), %rdi
2004 leaq foo@DTPOFF(%rax), %rdx
2005 movq foo@GOTTPOFF(%rip), %rax
2006 movq $foo@TPOFF, %rax'
2012 .section ".tdata","awT",@progbits
2015 addl r16 = @ltoff(@dtpmod(foo#)), gp
2016 addl r17 = @ltoff(@dtprel(foo#)), gp
2017 addl r18 = @ltoff(@tprel(foo#)), gp
2018 addl r19 = @dtprel(foo#), gp
2019 adds r21 = @dtprel(foo#), r13
2020 movl r23 = @dtprel(foo#)
2021 addl r20 = @tprel(foo#), gp
2022 adds r22 = @tprel(foo#), r13
2023 movl r24 = @tprel(foo#)'
2029 .section ".tdata","awT",@progbits
2037 addi 3,31,ld0@got@tlsgd
2039 addi 3,31,x1@got@tlsld
2042 addis 9,3,x2@dtprel@ha
2043 addi 9,9,x2@dtprel@l
2044 lwz 9,x3@got@tprel(31)
2047 addis 9,2,x2@tprel@ha
2048 addi 9,9,x2@tprel@l'
2055 .section ".tdata","awT",@progbits
2063 addi 3,2,ld0@got@tlsgd
2069 addi 3,2,x1@got@tlsld
2075 addis 9,3,x2@dtprel@ha
2076 addi 9,9,x2@dtprel@l
2079 ld 9,x3@got@dtprel(2)
2089 .section ".tdata","awT",@progbits
2098 l %r1,foo@GOTNTPOFF(%r12)
2099 l %r1,0(%r1):tls_load:foo
2100 bas %r14,0(%r1,%r13):tls_gdcall:foo
2101 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2108 .section ".tdata","awT",@progbits
2116 lg %r1,foo@GOTNTPOFF(%r12)
2117 larl %r1,foo@INDNTPOFF
2118 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2119 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2122 tls_as_opt="-m64 -Aesame"
2125 if test -z "$tls_first_major"; then
2126 : # If we don't have a check, assume no support.
2128 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2129 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt --fatal-warnings],
2131 [AC_DEFINE(HAVE_AS_TLS, 1,
2132 [Define if your assembler supports thread-local storage.])])
2135 # Target-specific assembler checks.
2138 # All TARGET_ABI_OSF targets.
2139 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2140 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2141 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2144 extbl $3, $2, $3 !lituse_bytoff!1
2145 ldq $2, a($29) !literal!1
2146 ldq $4, b($29) !literal!2
2147 ldq_u $3, 0($2) !lituse_base!1
2148 ldq $27, f($29) !literal!5
2149 jsr $26, ($27), f !lituse_jsr!5
2150 ldah $29, 0($26) !gpdisp!3
2151 lda $0, c($29) !gprel
2152 ldah $1, d($29) !gprelhigh
2153 lda $1, d($1) !gprellow
2154 lda $29, 0($29) !gpdisp!3],,
2155 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2156 [Define if your assembler supports explicit relocations.])])
2160 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2161 [.register %g2, #scratch],,
2162 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2163 [Define if your assembler supports .register.])])
2165 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2167 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2168 [Define if your assembler supports -relax option.])])
2170 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2171 gcc_cv_as_sparc_ua_pcrel,,
2179 .uaword %r_disp32(foo)],
2180 [if test x$gcc_cv_ld != x \
2181 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2182 gcc_cv_as_sparc_ua_pcrel=yes
2185 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2186 [Define if your assembler and linker support unaligned PC relative relocs.])
2188 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2189 gcc_cv_as_sparc_ua_pcrel_hidden,,
2194 .uaword %r_disp32(foo)
2195 .byte 0x32, 0x33, 0x34
2200 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2201 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2202 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2203 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2204 if $gcc_cv_objdump -R conftest 2> /dev/null \
2205 | grep 'DISP32' > /dev/null 2>&1; then
2208 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2212 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2213 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2214 ]) # unaligned pcrel relocs
2216 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2217 gcc_cv_as_sparc_offsetable_lo10,,
2220 or %g1, %lo(ab) + 12, %g1
2221 or %g1, %lo(ab + 12), %g1],
2222 [if test x$gcc_cv_objdump != x \
2223 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2224 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2225 gcc_cv_as_offsetable_lo10=yes
2227 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2228 [Define if your assembler supports offsetable %lo().])])
2232 i[34567]86-*-* | x86_64-*-*)
2234 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2235 gcc_cv_as_ix86_filds_fists,
2236 [2,9,0],, [filds mem; fists mem],,
2237 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2238 [Define if your assembler uses the new HImode fild and fist notation.])])
2240 # This one is used unconditionally by i386.[ch]; it is to be defined
2241 # to 1 if the feature is present, 0 otherwise.
2242 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2243 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2249 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2250 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2251 [Define true if the assembler supports '.long foo@GOTOFF'.])
2255 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2256 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2257 changequote(<<,>>)dnl
2259 addl r15 = @ltoffx(x#), gp
2261 ld8.mov r16 = [r15], x#>>,
2263 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2264 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2270 *-*-aix) conftest_s=' .csect .text[PR]';;
2271 *) conftest_s=' .text';;
2273 conftest_s="$conftest_s
2276 gcc_GAS_CHECK_FEATURE([mfcr field support],
2277 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2279 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2280 [Define if your assembler supports mfcr field.])])
2284 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2285 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2286 [ lw $4,%gp_rel(foo)($4)],,
2287 [if test x$target_cpu_default = x
2288 then target_cpu_default=MASK_EXPLICIT_RELOCS
2289 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2294 # ??? Not all targets support dwarf2 debug_line, even within a version
2295 # of gas. Moreover, we need to emit a valid instruction to trigger any
2296 # info to the output file. So, as supported targets are added to gas 2.11,
2297 # add some instruction here to (also) show we expect this might work.
2298 # ??? Once 2.11 is released, probably need to add first known working
2299 # version to the per-target configury.
2301 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2302 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2303 | xstormy16*-*-* | cris-*-*)
2313 if test x"$insn" != x; then
2315 .file 1 \"conftest.s\"
2318 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2319 gcc_cv_as_dwarf2_debug_line,
2320 [elf,2,11,0],, [$conftest_s],
2321 [# ??? This fails with non-gnu grep. Maybe use objdump?
2322 if grep debug_line conftest.o > /dev/null 2>&1; then
2323 gcc_cv_as_dwarf2_debug_line=yes
2326 # The .debug_line file table must be in the exact order that
2327 # we specified the files, since these indices are also used
2328 # by DW_AT_decl_file. Approximate this test by testing if
2329 # the assembler bitches if the same index is assigned twice.
2330 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2331 gcc_cv_as_dwarf2_file_buggy,,,
2335 if test $gcc_cv_as_dwarf2_debug_line = yes \
2336 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2337 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2338 [Define if your assembler supports dwarf2 .file/.loc directives,
2339 and preserves file table indices exactly as given.])
2342 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2343 gcc_cv_as_gdwarf2_flag,
2344 [elf,2,11,0], [--gdwarf2], [$insn],,
2345 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2346 [Define if your assembler supports the --gdwarf2 option.])])
2348 gcc_GAS_CHECK_FEATURE([--gstabs option],
2349 gcc_cv_as_gstabs_flag,
2350 [elf,2,11,0], [--gstabs], [$insn],
2351 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2352 # and warns about it, but still exits successfully. So check for
2354 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2356 else gcc_cv_as_gstabs_flag=yes
2358 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2359 [Define if your assembler supports the --gstabs option.])])
2362 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2363 gcc_cv_ld_ro_rw_mix=unknown
2364 if test $in_tree_ld = yes ; then
2365 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2366 && test $in_tree_ld_is_elf = yes; then
2367 gcc_cv_ld_ro_rw_mix=read-write
2369 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2370 echo '.section myfoosect, "a"' > conftest1.s
2371 echo '.section myfoosect, "aw"' > conftest2.s
2372 echo '.byte 1' >> conftest2.s
2373 echo '.section myfoosect, "a"' > conftest3.s
2374 echo '.byte 0' >> conftest3.s
2375 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2376 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2377 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2378 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2379 conftest2.o conftest3.o > /dev/null 2>&1; then
2380 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2381 | sed -e '/myfoosect/!d' -e N`
2382 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2383 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2384 gcc_cv_ld_ro_rw_mix=read-only
2386 gcc_cv_ld_ro_rw_mix=read-write
2391 rm -f conftest.* conftest[123].*
2394 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2395 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2396 [Define if your linker links a mix of read-only
2397 and read-write sections into a read-write section.])
2399 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2401 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2402 gcc_cv_ld_eh_frame_hdr=no
2403 if test $in_tree_ld = yes ; then
2404 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2405 && test $in_tree_ld_is_elf = yes; then
2406 gcc_cv_ld_eh_frame_hdr=yes
2408 elif test x$gcc_cv_ld != x; then
2409 # Check if linker supports --eh-frame-hdr option
2410 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2411 gcc_cv_ld_eh_frame_hdr=yes
2414 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2415 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2416 [Define if your linker supports --eh-frame-hdr option.])
2418 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2420 AC_MSG_CHECKING(linker position independent executable support)
2422 if test $in_tree_ld = yes ; then
2423 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2424 && test $in_tree_ld_is_elf = yes; then
2427 elif test x$gcc_cv_ld != x; then
2428 # Check if linker supports -pie option
2429 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2433 if test x"$gcc_cv_ld_pie" = xyes; then
2434 AC_DEFINE(HAVE_LD_PIE, 1,
2435 [Define if your linker supports -pie option.])
2437 AC_MSG_RESULT($gcc_cv_ld_pie)
2439 # Miscellaneous target-specific checks.
2442 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2443 gcc_cv_mips_libgloss_startup=no
2444 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2445 if test "x$exec_prefix" = xNONE; then
2446 if test "x$prefix" = xNONE; then
2447 test_prefix=/usr/local
2452 test_prefix=$exec_prefix
2454 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2456 if grep '^STARTUP' $f > /dev/null 2>&1; then
2457 gcc_cv_mips_libgloss_startup=yes
2461 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2462 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2463 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2465 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2469 if test x$with_sysroot = x && test x$host = x$target \
2470 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2471 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2472 [Define to PREFIX/include if cpp should also search that directory.])
2475 # Figure out what language subdirectories are present.
2476 # Look if the user specified --enable-languages="..."; if not, use
2477 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2479 # NB: embedded tabs in this IF block -- do not untabify
2480 if test x"${enable_languages+set}" != xset; then
2481 if test x"${LANGUAGES+set}" = xset; then
2482 enable_languages="${LANGUAGES}"
2483 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2486 enable_languages=all
2489 if test x"${enable_languages}" = x \
2490 || test x"${enable_languages}" = xyes;
2492 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2495 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2497 # First scan to see if an enabled language requires some other language.
2498 # We assume that a given config-lang.in will list all the language
2499 # front ends it requires, even if some are required indirectly.
2500 for lang in ${srcdir}/*/config-lang.in ..
2505 # The odd quoting in the next line works around
2506 # an apparent bug in bash 1.12 on linux.
2508 ${srcdir}/[*]/config-lang.in)
2511 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2512 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2513 for other in $this_lang_requires
2515 case ,${enable_languages}, in
2521 enable_languages="$enable_languages,$other"
2530 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2533 for lang in ${srcdir}/*/config-lang.in ..
2537 # The odd quoting in the next line works around
2538 # an apparent bug in bash 1.12 on linux.
2540 ${srcdir}/[*]/config-lang.in) ;;
2542 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2543 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2544 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2545 if test "x$lang_alias" = x
2547 echo "$lang doesn't set \$language." 1>&2
2550 case ${build_by_default},${enable_languages}, in
2551 *,$lang_alias,*) add_this_lang=yes ;;
2552 no,*) add_this_lang=no ;;
2553 *,all,*) add_this_lang=yes ;;
2554 *) add_this_lang=no ;;
2556 found_languages="${found_languages} ${lang_alias}"
2557 if test x"${add_this_lang}" = xyes; then
2559 ${srcdir}/ada/config-lang.in)
2560 if test x$have_gnat = xyes ; then
2561 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2565 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2575 for expected_language in ${expected_languages} ..
2577 if test "${expected_language}" != ..; then
2578 missing_language="${expected_language}"
2579 if test "${expected_language}" = "c" \
2580 || test "${expected_language}" = "all"; then
2583 for found_language in ${found_languages} ..
2585 if test "${found_language}" != ..; then
2586 if test "${expected_language}" = "${found_language}"; then
2591 if test "x${missing_language}" != x; then
2592 missing_languages="${missing_languages} ${missing_language}"
2597 if test "x$missing_languages" != x; then
2599 The following requested languages were not found:${missing_languages}
2600 The following languages were available: c${found_languages}])
2603 # Make gthr-default.h if we have a thread file.
2605 if test $thread_file != single; then
2606 rm -f gthr-default.h
2607 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2608 gthread_flags=-DHAVE_GTHR_DEFAULT
2610 AC_SUBST(gthread_flags)
2612 # Find out what GC implementation we want, or may, use.
2614 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2621 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2626 echo "Using $GGC for garbage collection."
2628 # Use the system's zlib library.
2630 zlibinc="-I\$(srcdir)/../zlib"
2631 AC_ARG_WITH(system-zlib,
2632 [ --with-system-zlib use installed libz],
2639 dnl Very limited version of automake's enable-maintainer-mode
2641 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2642 dnl maintainer-mode is disabled by default
2643 AC_ARG_ENABLE(maintainer-mode,
2644 [ --enable-maintainer-mode
2645 enable make rules and dependencies not useful
2646 (and sometimes confusing) to the casual installer],
2647 maintainer_mode=$enableval,
2650 AC_MSG_RESULT($maintainer_mode)
2652 if test "$maintainer_mode" = "yes"; then
2659 # Make empty files to contain the specs and options for each language.
2660 # Then add #include lines to for a compiler that has specs and/or options.
2666 for subdir in . $subdirs
2668 if test -f $srcdir/$subdir/lang.opt; then
2669 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2671 if test -f $srcdir/$subdir/lang-specs.h; then
2672 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2674 if test -f $srcdir/$subdir/lang-options.h; then
2675 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2677 if test -f $srcdir/$subdir/$subdir-tree.def; then
2678 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2682 # These (without "all_") are set in each config-lang.in.
2683 # `language' must be a single word so is spelled singularly.
2688 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2689 # List of language makefile fragments.
2691 # Files for gengtype
2692 all_gtfiles="$target_gtfiles"
2693 # Files for gengtype with language
2694 all_gtfiles_files_langs=
2695 all_gtfiles_files_files=
2697 # Add the language fragments.
2698 # Languages are added via two mechanisms. Some information must be
2699 # recorded in makefile variables, these are defined in config-lang.in.
2700 # We accumulate them and plug them into the main Makefile.
2701 # The other mechanism is a set of hooks for each of the main targets
2702 # like `clean', `install', etc.
2704 language_fragments="Make-lang"
2705 language_hooks="Make-hooks"
2707 for s in .. $subdirs
2717 . ${srcdir}/$s/config-lang.in
2718 if test "x$language" = x
2720 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2723 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2724 if test -f ${srcdir}/$s/Makefile.in
2725 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2727 all_languages="$all_languages $language"
2728 if test "x$boot_language" = xyes
2730 all_boot_languages="$all_boot_languages $language"
2732 all_compilers="$all_compilers $compilers"
2733 all_stagestuff="$all_stagestuff $stagestuff"
2734 all_outputs="$all_outputs $outputs"
2735 all_gtfiles="$all_gtfiles $gtfiles"
2736 for f in .. $gtfiles
2740 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2741 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2747 # Pick up gtfiles for c
2750 . ${srcdir}/c-config-lang.in
2751 all_gtfiles="$all_gtfiles $gtfiles"
2752 for f in .. $gtfiles
2756 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2757 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2762 for language in .. $all_languages
2764 if test $language != ".."
2766 check_languages="$check_languages check-$language"
2770 # Since we can't use `::' targets, we link each language in
2771 # with a set of hooks, reached indirectly via lang.${target}.
2775 target_list="all.build all.cross start.encap rest.encap tags \
2776 info dvi generated-manpages \
2777 install-normal install-common install-info install-man \
2779 mostlyclean clean distclean extraclean maintainer-clean \
2780 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2781 for t in $target_list
2784 for lang in .. $all_languages
2786 if test $lang != ".."; then
2790 echo "lang.$t: $x" >> Make-hooks
2795 echo "dir ." > .gdbinit
2796 echo "dir ${srcdir}" >> .gdbinit
2797 if test x$gdb_needs_out_file_path = xyes
2799 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2801 if test "x$subdirs" != x; then
2804 echo "dir ${srcdir}/$s" >> .gdbinit
2807 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2809 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2810 # absolute path for gcc_tooldir based on inserting the number of up-directory
2811 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2812 # $(libsubdir)/@(unlibsubdir) based path.
2813 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2814 # make and thus we'd get different behavior depending on where we built the
2816 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2817 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2819 changequote(<<, >>)dnl
2820 # An explanation of the sed strings:
2821 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2822 # -e 's|/$||' match a trailing forward slash and eliminates it
2823 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2824 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2826 # (*) Note this pattern overwrites the first character of the string
2827 # with a forward slash if one is not already present. This is not a
2828 # problem because the exact names of the sub-directories concerned is
2829 # unimportant, just the number of them matters.
2831 # The practical upshot of these patterns is like this:
2833 # prefix exec_prefix result
2834 # ------ ----------- ------
2836 # /foo/ /foo/bar ../
2837 # /foo /foo/bar/ ../
2838 # /foo/ /foo/bar/ ../
2839 # /foo /foo/bar/ugg ../../
2842 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2843 changequote([, ])dnl
2845 AC_SUBST(gcc_tooldir)
2848 # Find a directory in which to install a shared libgcc.
2850 AC_ARG_ENABLE(version-specific-runtime-libs,
2851 [ --enable-version-specific-runtime-libs
2852 specify that runtime libraries should be
2853 installed in a compiler-specific directory])
2855 AC_ARG_WITH(slibdir,
2856 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2857 slibdir="$with_slibdir",
2858 if test "${enable_version_specific_runtime_libs+set}" = set; then
2859 slibdir='$(libsubdir)'
2860 elif test "$host" != "$target"; then
2861 slibdir='$(build_tooldir)/lib'
2867 objdir=`${PWDCMD-pwd}`
2870 # Process the language and host/target makefile fragments.
2871 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2873 # Substitute configuration variables
2876 AC_SUBST(all_boot_languages)
2877 AC_SUBST(all_compilers)
2878 AC_SUBST(all_gtfiles)
2879 AC_SUBST(all_gtfiles_files_langs)
2880 AC_SUBST(all_gtfiles_files_files)
2881 AC_SUBST(all_lang_makefiles)
2882 AC_SUBST(all_languages)
2883 AC_SUBST(all_stagestuff)
2884 AC_SUBST(build_exeext)
2885 AC_SUBST(build_install_headers_dir)
2886 AC_SUBST(build_xm_file_list)
2887 AC_SUBST(build_xm_file)
2888 AC_SUBST(build_xm_defines)
2889 AC_SUBST(check_languages)
2890 AC_SUBST(cc_set_by_configure)
2891 AC_SUBST(quoted_cc_set_by_configure)
2892 AC_SUBST(cpp_install_dir)
2893 AC_SUBST(dep_host_xmake_file)
2894 AC_SUBST(dep_tmake_file)
2895 AC_SUBST(extra_headers_list)
2896 AC_SUBST(extra_objs)
2897 AC_SUBST(extra_parts)
2898 AC_SUBST(extra_passes)
2899 AC_SUBST(extra_programs)
2900 AC_SUBST(float_h_file)
2901 AC_SUBST(gcc_config_arguments)
2902 AC_SUBST(gcc_gxx_include_dir)
2903 AC_SUBST(libstdcxx_incdir)
2904 AC_SUBST(gcc_version)
2905 AC_SUBST(gcc_version_full)
2906 AC_SUBST(gcc_version_trigger)
2907 AC_SUBST(host_exeext)
2908 AC_SUBST(host_extra_gcc_objs)
2909 AC_SUBST(host_xm_file_list)
2910 AC_SUBST(host_xm_file)
2911 AC_SUBST(host_xm_defines)
2912 AC_SUBST(out_host_hook_obj)
2914 AC_SUBST(lang_opt_files)
2915 AC_SUBST(lang_options_files)
2916 AC_SUBST(lang_specs_files)
2917 AC_SUBST(lang_tree_files)
2918 AC_SUBST(local_prefix)
2920 AC_SUBST(objc_boehm_gc)
2922 AC_SUBST(out_object_file)
2923 AC_SUBST(stage_prefix_set_by_configure)
2924 AC_SUBST(quoted_stage_prefix_set_by_configure)
2925 AC_SUBST(symbolic_link)
2926 AC_SUBST(thread_file)
2927 AC_SUBST(tm_file_list)
2929 AC_SUBST(tm_defines)
2930 AC_SUBST(tm_p_file_list)
2933 AC_SUBST(xm_defines)
2934 AC_SUBST(target_alias)
2935 AC_SUBST(c_target_objs)
2936 AC_SUBST(cxx_target_objs)
2937 AC_SUBST(target_cpu_default)
2939 AC_SUBST_FILE(target_overrides)
2940 AC_SUBST_FILE(host_overrides)
2941 AC_SUBST_FILE(language_fragments)
2942 AC_SUBST_FILE(language_hooks)
2944 # Echo that links are built
2945 if test x$host = x$target
2953 if test x$host != x$build
2955 str3=" on a $build system"
2958 if test "x$str2" != x || test "x$str3" != x
2963 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2965 if test "x$str2" != x || test "x$str3" != x
2967 echo " ${str2}${str3}." 1>&2
2970 # Configure the subdirectories
2971 # AC_CONFIG_SUBDIRS($subdirs)
2973 # Create the Makefile
2974 # and configure language subdirectories
2975 AC_OUTPUT($all_outputs,
2977 case x$CONFIG_HEADERS in
2978 xauto-host.h:config.in)
2981 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
2982 # bootstrapping and the installation procedure can still use
2983 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
2984 # FLAGS_TO_PASS has been modified to solve the problem there.
2985 # This is virtually a duplicate of what happens in configure.lang; we do
2986 # an extra check to make sure this only happens if ln -s can be used.
2987 if test "$symbolic_link" = "ln -s"; then
2988 for d in .. ${subdirs} fixinc ; do
2989 if test $d != ..; then
2990 STARTDIR=`${PWDCMD-pwd}`
2992 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
2995 $symbolic_link ../$t $t 2>/dev/null
3003 symbolic_link='$symbolic_link'