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 noncanonical target name, for directory use.
36 _GCC_TOPLEV_NONCANONICAL_TARGET
38 # Determine the target- and build-specific subdirectories
41 # Set program_transform_name
44 # Check for bogus environment variables.
45 # Test if LIBRARY_PATH contains the notation for the current directory
46 # since this would lead to problems installing/building glibc.
47 # LIBRARY_PATH contains the current directory if one of the following
49 # - one of the terminals (":" and ";") is the first or last sign
50 # - two terminals occur directly after each other
51 # - the path contains an element with a dot in it
52 AC_MSG_CHECKING(LIBRARY_PATH variable)
54 case ${LIBRARY_PATH} in
55 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
56 library_path_setting="contains current directory"
59 library_path_setting="ok"
63 AC_MSG_RESULT($library_path_setting)
64 if test "$library_path_setting" != "ok"; then
66 *** LIBRARY_PATH shouldn't contain the current directory when
67 *** building gcc. Please change the environment variable
68 *** and run configure again.])
71 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
72 # since this would lead to problems installing/building glibc.
73 # GCC_EXEC_PREFIX contains the current directory if one of the following
75 # - one of the terminals (":" and ";") is the first or last sign
76 # - two terminals occur directly after each other
77 # - the path contains an element with a dot in it
78 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
80 case ${GCC_EXEC_PREFIX} in
81 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
82 gcc_exec_prefix_setting="contains current directory"
85 gcc_exec_prefix_setting="ok"
89 AC_MSG_RESULT($gcc_exec_prefix_setting)
90 if test "$gcc_exec_prefix_setting" != "ok"; then
92 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
93 *** building gcc. Please change the environment variable
94 *** and run configure again.])
101 # Specify the local prefix
103 AC_ARG_WITH(local-prefix,
104 [ --with-local-prefix=DIR specifies directory to put local include],
105 [case "${withval}" in
106 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
108 *) local_prefix=$with_local_prefix ;;
111 # Default local prefix if it is empty
112 if test x$local_prefix = x; then
113 local_prefix=/usr/local
116 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
117 # passed in by the toplevel make and thus we'd get different behavior
118 # depending on where we built the sources.
120 # Specify the g++ header file directory
121 AC_ARG_WITH(gxx-include-dir,
122 [ --with-gxx-include-dir=DIR
123 specifies directory to put g++ header files],
124 [case "${withval}" in
125 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
127 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
130 if test x${gcc_gxx_include_dir} = x; then
131 if test x${enable_version_specific_runtime_libs} = xyes; then
132 gcc_gxx_include_dir='${libsubdir}/include/c++'
134 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
135 changequote(<<, >>)dnl
136 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
141 AC_ARG_WITH(cpp_install_dir,
142 [ --with-cpp-install-dir=DIR
143 install the user visible C preprocessor in DIR
144 (relative to PREFIX) as well as PREFIX/bin],
145 [if test x$withval = xyes; then
146 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
147 elif test x$withval != xno; then
148 cpp_install_dir=$withval
151 # We would like to our source tree to be readonly. However when releases or
152 # pre-releases are generated, the flex/bison generated files as well as the
153 # various formats of manuals need to be included along with the rest of the
154 # sources. Therefore we have --enable-generated-files-in-srcdir to do
157 AC_ARG_ENABLE(generated-files-in-srcdir,
158 [ --enable-generated-files-in-srcdir Put generated files in source dir],
159 [case ${enableval} in
160 no) parsedir='$(objdir)'; docobjdir='$(objdir)/doc';;
161 *) parsedir='$(srcdir)'; docobjdir='$(srcdir)/doc';;
163 [parsedir='$(objdir)'; docobjdir='$(objdir)/doc';])
165 # -------------------
166 # Find default linker
167 # -------------------
171 [ --with-gnu-ld arrange to work with GNU ld.],
172 gnu_ld_flag="$with_gnu_ld",
175 # With pre-defined ld
177 [ --with-ld arrange to use the specified ld (full pathname)],
178 DEFAULT_LINKER="$with_ld")
179 if test x"${DEFAULT_LINKER+set}" = x"set"; then
180 if test ! -x "$DEFAULT_LINKER"; then
181 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
182 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
185 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
186 [Define to enable the use of a default linker.])
189 AC_MSG_CHECKING([whether a default linker was specified])
190 if test x"${DEFAULT_LINKER+set}" = x"set"; then
191 if test x"$gnu_ld_flag" = x"no"; then
192 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
194 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
200 # ----------------------
201 # Find default assembler
202 # ----------------------
206 [ --with-gnu-as arrange to work with GNU as],
207 gas_flag="$with_gnu_as",
211 [ --with-as arrange to use the specified as (full pathname)],
212 DEFAULT_ASSEMBLER="$with_as")
213 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
214 if test ! -x "$DEFAULT_ASSEMBLER"; then
215 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
216 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
219 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
220 [Define to enable the use of a default assembler.])
223 AC_MSG_CHECKING([whether a default assembler was specified])
224 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
225 if test x"$gas_flag" = x"no"; then
226 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
228 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
238 # Find the native compiler
241 # autoconf is lame and doesn't give us any substitution variable for this.
242 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
243 NO_MINUS_C_MINUS_O=yes
245 OUTPUT_OPTION='-o $@'
247 AC_SUBST(NO_MINUS_C_MINUS_O)
248 AC_SUBST(OUTPUT_OPTION)
250 # -------------------------
251 # Check C compiler features
252 # -------------------------
254 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
255 ac_cv_prog_cc_no_long_long,
256 [save_CFLAGS="$CFLAGS"
257 CFLAGS="-Wno-long-long"
258 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
259 ac_cv_prog_cc_no_long_long=no)
260 CFLAGS="$save_CFLAGS"])
268 # sizeof(char) is 1 by definition.
269 AC_COMPILE_CHECK_SIZEOF(void *)
270 AC_COMPILE_CHECK_SIZEOF(short)
271 AC_COMPILE_CHECK_SIZEOF(int)
272 AC_COMPILE_CHECK_SIZEOF(long)
273 if test $ac_cv_c_long_long = yes; then
274 AC_COMPILE_CHECK_SIZEOF(long long)
276 if test $ac_cv_c___int64 = yes; then
277 AC_COMPILE_CHECK_SIZEOF(__int64)
284 # See if GNAT has been installed
287 if test x$have_gnat != xno ; then
288 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
289 ac_cv_prog_adac_no_long_long,
290 [cat >conftest.adb <<EOF
291 procedure conftest is begin null; end conftest;
293 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
294 ac_cv_prog_adac_no_long_long=yes
296 ac_cv_prog_adac_no_long_long=no
300 ac_cv_prog_adac_no_long_long=yes
303 # ---------------------
304 # Warnings and checking
305 # ---------------------
308 if test $ac_cv_prog_cc_no_long_long = yes && \
309 test $ac_cv_prog_adac_no_long_long = yes ; then
310 strict1_warn="-pedantic -Wno-long-long"
312 AC_SUBST(strict1_warn)
314 # If the native compiler is GCC, we can enable warnings even in stage1.
315 # That's useful for people building cross-compilers, or just running a
318 if test "x$GCC" = "xyes"; then
319 warn_cflags='$(GCC_WARN_CFLAGS)'
321 AC_SUBST(warn_cflags)
323 # Enable -Werror in bootstrap stage2 and later.
324 # Change the default to "no" on release branches.
325 AC_ARG_ENABLE(werror,
326 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
328 if test x$enable_werror = xyes ; then
333 # Enable expensive internal checks
334 AC_ARG_ENABLE(checking,
335 [ --enable-checking[=LIST]
336 enable expensive run-time checks. With LIST,
337 enable only specific categories of checks.
338 Categories are: misc,tree,rtl,rtlflag,gc,gcac,fold;
339 default is misc,tree,gc,rtlflag],
345 ac_gc_always_collect=
347 case "${enableval}" in
348 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
349 ac_rtlflag_checking=1 ;;
351 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
352 set fnord $enableval; shift
357 misc) ac_checking=1 ;;
358 tree) ac_tree_checking=1 ;;
359 rtlflag) ac_rtlflag_checking=1 ;;
360 rtl) ac_rtl_checking=1 ;;
361 gc) ac_gc_checking=1 ;;
362 gcac) ac_gc_always_collect=1 ;;
363 fold) ac_fold_checking=1 ;;
364 valgrind) ac_checking_valgrind=1 ;;
365 *) AC_MSG_ERROR(unknown check category $check) ;;
371 # Enable some checks by default for development versions of GCC
372 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
374 if test x$ac_checking != x ; then
375 AC_DEFINE(ENABLE_CHECKING, 1,
376 [Define if you want more run-time sanity checks. This one gets a grab
377 bag of miscellaneous but relatively cheap checks.])
378 nocommon_flag=-fno-common
380 AC_SUBST(nocommon_flag)
381 if test x$ac_tree_checking != x ; then
382 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
383 [Define if you want all operations on trees (the basic data
384 structure of the front ends) to be checked for dynamic type safety
385 at runtime. This is moderately expensive.])
387 if test x$ac_rtl_checking != x ; then
388 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
389 [Define if you want all operations on RTL (the basic data structure
390 of the optimizer and back end) to be checked for dynamic type safety
391 at runtime. This is quite expensive.])
393 if test x$ac_rtlflag_checking != x ; then
394 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
395 [Define if you want RTL flag accesses to be checked against the RTL
396 codes that are supported for each access macro. This is relatively
399 if test x$ac_gc_checking != x ; then
400 AC_DEFINE(ENABLE_GC_CHECKING, 1,
401 [Define if you want the garbage collector to do object poisoning and
402 other memory allocation checks. This is quite expensive.])
404 if test x$ac_gc_always_collect != x ; then
405 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
406 [Define if you want the garbage collector to operate in maximally
407 paranoid mode, validating the entire heap and collecting garbage at
408 every opportunity. This is extremely expensive.])
410 if test x$ac_fold_checking != x ; then
411 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
412 [Define if you want fold checked that it never destructs its argument.
413 This is quite expensive.])
415 valgrind_path_defines=
417 if test x$ac_checking_valgrind != x ; then
418 # It is certainly possible that there's valgrind but no valgrind.h.
419 # GCC relies on making annotations so we must have both.
420 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
422 [#include <memcheck.h>
423 #ifndef VALGRIND_DISCARD
424 #error VALGRIND_DISCARD not defined
426 [gcc_cv_header_memcheck_h=yes],
427 gcc_cv_header_memcheck_h=no)
428 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
429 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
430 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
431 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
432 if test "x$valgrind_path" = "x" || (test $have_valgrind_h = no && test $gcc_cv_header_memcheck_h = no); then
433 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h/memcheck.h])
435 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
436 valgrind_command="$valgrind_path -q"
437 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
438 [Define if you want to run subprograms and generated programs
439 through valgrind (a memory checker). This is extremely expensive.])
440 if test $gcc_cv_header_memcheck_h = yes; then
441 AC_DEFINE(HAVE_MEMCHECK_H, 1,
442 [Define if valgrind's memcheck.h header is installed.])
445 AC_SUBST(valgrind_path_defines)
446 AC_SUBST(valgrind_command)
448 # Enable code coverage collection
449 AC_ARG_ENABLE(coverage,
450 [ --enable-coverage[=LEVEL]
451 enable compiler\'s code coverage collection.
452 Use to measure compiler performance and locate
453 unused parts of the compiler. With LEVEL, specify
454 optimization. Values are opt, noopt,
456 [case "${enableval}" in
458 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
461 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
464 AC_MSG_ERROR(unknown coverage setting $enableval)
468 AC_SUBST(coverage_flags)
470 # -------------------------------
471 # Miscenalleous configure options
472 # -------------------------------
476 [ --with-stabs arrange to use stabs instead of host debug format],
480 # Determine whether or not multilibs are enabled.
481 AC_ARG_ENABLE(multilib,
482 [ --enable-multilib enable library support for multiple ABIs],
483 [], [enable_multilib=yes])
484 AC_SUBST(enable_multilib)
486 # Enable __cxa_atexit for C++.
487 AC_ARG_ENABLE(__cxa_atexit,
488 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
492 # Pass with no value to take the default
493 # Pass with a value to specify a thread package
494 AC_ARG_ENABLE(threads,
495 [ --enable-threads enable thread usage for target GCC
496 --enable-threads=LIB use LIB thread package for target GCC],,
498 # Save in case it gets overwritten in config.gcc
499 enable_threads_flag=$enable_threads
501 AC_ARG_ENABLE(objc-gc,
502 [ --enable-objc-gc enable the use of Boehm's garbage collector with
503 the GNU Objective-C runtime],
504 if test x$enable_objc_gc = xno; then
512 [ --with-dwarf2 force the default debug format to be DWARF 2],
513 dwarf2="$with_dwarf2",
516 AC_ARG_ENABLE(shared,
517 [ --disable-shared don't provide a shared libgcc],
519 case $enable_shared in
523 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
524 for pkg in $enableval; do
525 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
532 ], [enable_shared=yes])
533 AC_SUBST(enable_shared)
536 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
538 case ${with_sysroot} in
539 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
540 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
543 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
544 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
546 if test "x$exec_prefix" = xNONE; then
547 if test "x$prefix" = xNONE; then
548 test_prefix=/usr/local
553 test_prefix=$exec_prefix
555 case ${TARGET_SYSTEM_ROOT} in
556 "${test_prefix}"|"${test_prefix}/"*|\
557 '${exec_prefix}'|'${exec_prefix}/'*)
558 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
559 TARGET_SYSTEM_ROOT_DEFINE="$t"
564 TARGET_SYSTEM_ROOT_DEFINE=
565 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
567 AC_SUBST(TARGET_SYSTEM_ROOT)
568 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
569 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
571 # Build with intermodule optimisations
572 AC_ARG_ENABLE(intermodule,
573 [ --enable-intermodule build the compiler in one step],
574 [case ${enable_intermodule} in
575 yes) onestep="-onestep";;
581 # -------------------------
582 # Checks for other programs
583 # -------------------------
587 # Find some useful tools
594 # See if cmp has --ignore-initial.
595 gcc_AC_PROG_CMP_IGNORE_INITIAL
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)
633 dnl Don't use AC_PROG_LEX; we insist on flex.
634 dnl LEXLIB is not useful in gcc.
635 if test -f $srcdir/../flex/skel.c; then
636 FLEX='$(objdir)/../flex/flex'
638 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
642 # The -L switch is so bison can find its skeleton file.
643 if test -f $srcdir/../bison/bison.simple; then
644 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
646 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
649 # --------------------
650 # Checks for C headers
651 # --------------------
653 AC_MSG_CHECKING(for GNU C library)
654 AC_CACHE_VAL(gcc_cv_glibc,
656 [#include <features.h>],[
657 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
658 #error Not a GNU C library system
662 AC_MSG_RESULT($gcc_cv_glibc)
663 if test $gcc_cv_glibc = yes; then
664 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
669 gcc_AC_HEADER_STDBOOL
672 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
673 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
674 sys/resource.h sys/param.h sys/times.h sys/stat.h \
675 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
677 # Check for thread headers.
678 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
679 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
681 # These tests can't be done till we know if we have limits.h.
689 # Stage specific cflags for build.
695 stage1_cflags="-Wa,-J"
701 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
702 # sources; use -no-cpp-precomp to get to GNU cpp.
703 # Apple's GCC has bugs in designated initializer handling, so disable
705 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
708 AC_SUBST(stage1_cflags)
710 # These libraries may be used by collect2.
711 # We may need a special search path to get them linked.
712 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
714 for libs in '' -lld -lmld \
715 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
716 '-L/usr/lib/cmplrs/cc3.11 -lmld'
719 AC_TRY_LINK_FUNC(ldopen,
720 [gcc_cv_collect2_libs="$libs"; break])
723 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
724 case $gcc_cv_collect2_libs in
726 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
728 AC_SUBST(COLLECT2_LIBS)
730 # When building Ada code on Alpha, we need exc_resume which is usually in
731 # -lexc. So test for it.
734 AC_SEARCH_LIBS(exc_resume, exc)
737 AC_SUBST(GNAT_LIBEXC)
739 # Some systems put ldexp and frexp in libm instead of libc; assume
740 # they're both in the same place. jcf-dump needs them.
743 AC_SEARCH_LIBS(ldexp, m)
748 # Use <inttypes.h> only if it exists,
749 # doesn't clash with <sys/types.h>, and declares intmax_t.
750 AC_MSG_CHECKING(for inttypes.h)
751 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
753 [#include <sys/types.h>
754 #include <inttypes.h>],
756 [gcc_cv_header_inttypes_h=yes],
757 gcc_cv_header_inttypes_h=no)])
758 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
759 if test $gcc_cv_header_inttypes_h = yes; then
760 AC_DEFINE(HAVE_INTTYPES_H, 1,
761 [Define if you have a working <inttypes.h> header file.])
764 dnl Disabled until we have a complete test for buggy enum bitfields.
765 dnl gcc_AC_C_ENUM_BF_UNSIGNED
767 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
768 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
769 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
770 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
773 if test x$ac_cv_func_mbstowcs = xyes; then
774 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
775 [ AC_TRY_RUN([#include <stdlib.h>
781 gcc_cv_func_mbstowcs_works=yes,
782 gcc_cv_func_mbstowcs_works=no,
783 gcc_cv_func_mbstowcs_works=yes)])
784 if test x$gcc_cv_func_mbstowcs_works = xyes; then
785 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
786 [Define this macro if mbstowcs does not crash when its
787 first argument is NULL.])
791 gcc_AC_CHECK_TYPE(ssize_t, int)
793 # Try to determine the array type of the second argument of getgroups
794 # for the target system (int or gid_t).
796 if test "${target}" = "${build}"; then
797 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
800 # This condition may need some tweaking. It should include all
801 # targets where the array type of the second argument of getgroups
802 # is int and the type of gid_t is not equivalent to int.
803 *-*-sunos* | *-*-ultrix*)
804 TARGET_GETGROUPS_T=int
807 TARGET_GETGROUPS_T=gid_t
811 AC_SUBST(TARGET_GETGROUPS_T)
813 gcc_AC_FUNC_PRINTF_PTR
814 gcc_AC_FUNC_MMAP_BLACKLIST
818 # Under VMS, vfork works very differently than on Unix. The standard test
819 # won't work, and it isn't easily adaptable. It makes more sense to
821 ac_cv_func_vfork_works=yes
827 # Until we have in-tree GNU iconv:
829 AC_SUBST(LIBICONV_DEP)
833 # We will need to find libiberty.h and ansidecl.h
834 saved_CFLAGS="$CFLAGS"
835 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
836 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
837 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
838 fprintf_unlocked strstr errno snprintf vasprintf \
839 malloc realloc calloc free basename getopt clock, , ,[
840 #include "ansidecl.h"
841 #include "system.h"])
843 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
844 #include "ansidecl.h"
846 #ifdef HAVE_SYS_RESOURCE_H
847 #include <sys/resource.h>
852 #include "ansidecl.h"
854 #ifdef HAVE_SYS_RESOURCE_H
855 #include <sys/resource.h>
857 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
858 [Define to \`long' if <sys/resource.h> doesn't define.])])
860 gcc_AC_CHECK_DECLS(ldgetname, , ,[
861 #include "ansidecl.h"
868 gcc_AC_CHECK_DECLS(times, , ,[
869 #include "ansidecl.h"
871 #ifdef HAVE_SYS_TIMES_H
872 #include <sys/times.h>
876 # More time-related stuff.
877 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
879 #include "ansidecl.h"
881 #ifdef HAVE_SYS_TIMES_H
882 #include <sys/times.h>
884 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
885 if test $ac_cv_struct_tms = yes; then
886 AC_DEFINE(HAVE_STRUCT_TMS, 1,
887 [Define if <sys/times.h> defines struct tms.])
890 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
891 # revisit after autoconf 2.50.
892 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
894 #include "ansidecl.h"
896 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
897 if test $gcc_cv_type_clock_t = yes; then
898 AC_DEFINE(HAVE_CLOCK_T, 1,
899 [Define if <time.h> defines clock_t.])
902 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
904 #include "ansidecl.h"
907 [if ((uchar *)0) return 0;
908 if (sizeof(uchar)) return 0;],
909 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
910 if test $ac_cv_type_uchar = yes; then
911 AC_DEFINE(HAVE_UCHAR, 1,
912 [Define if <sys/types.h> defines \`uchar'.])
915 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
916 CFLAGS="$saved_CFLAGS"
918 gcc_AC_INITFINI_ARRAY
920 # mkdir takes a single argument on some systems.
921 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
929 # With Setjmp/Longjmp based exception handling.
930 AC_ARG_ENABLE(sjlj-exceptions,
931 [ --enable-sjlj-exceptions
932 arrange to use setjmp/longjmp exception handling],
933 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
934 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
935 [Define 0/1 to force the choice for exception handling model.])])
937 if test x$host = x$target; then
938 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
940 use_libunwind_default=no
942 # Use libunwind based exception handling.
943 AC_ARG_ENABLE(libunwind-exceptions,
944 [ --enable-libunwind-exceptions force use libunwind for exceptions],
945 use_libunwind_exceptions=$enableval,
946 use_libunwind_exceptions=$use_libunwind_default)
947 if test x"$use_libunwind_exceptions" = xyes; then
948 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
949 [Define if gcc should use -lunwind.])
952 # --------------------------------------------------------
953 # Build, host, and target specific configuration fragments
954 # --------------------------------------------------------
956 # Collect build-machine-specific information.
957 . ${srcdir}/config.build
959 # Collect host-machine-specific information.
960 . ${srcdir}/config.host
964 # Collect target-machine-specific information.
965 . ${srcdir}/config.gcc
967 extra_objs="${host_extra_objs} ${extra_objs}"
969 # Default the target-machine variables that were not explicitly set.
970 if test x"$tm_file" = x
971 then tm_file=$cpu_type/$cpu_type.h; fi
973 if test x"$extra_headers" = x
974 then extra_headers=; fi
976 if test x$md_file = x
977 then md_file=$cpu_type/$cpu_type.md; fi
979 if test x$out_file = x
980 then out_file=$cpu_type/$cpu_type.c; fi
982 if test x"$tmake_file" = x
983 then tmake_file=$cpu_type/t-$cpu_type
986 if test x"$dwarf2" = xyes
987 then tm_file="$tm_file tm-dwarf2.h"
990 # Say what files are being used for the output code and MD file.
991 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
992 echo "Using \`$srcdir/config/$md_file' as machine description file."
994 # If any of the xm_file variables contain nonexistent files, warn
995 # about them and drop them.
998 for x in $build_xm_file; do
999 if test -f $srcdir/config/$x
1001 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1007 for x in $host_xm_file; do
1008 if test -f $srcdir/config/$x
1010 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1016 for x in $xm_file; do
1017 if test -f $srcdir/config/$x
1019 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1025 for f in $tm_file; do
1028 if test $count = ax; then
1029 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1031 echo "Using the following target machine macro files:"
1032 for f in $tm_file; do
1033 echo " $srcdir/config/$f"
1037 if test x$need_64bit_hwint = xyes; then
1038 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1039 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1043 for f in $host_xm_file; do
1046 if test $count = a; then
1048 elif test $count = ax; then
1049 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1051 echo "Using the following host machine macro files:"
1052 for f in $host_xm_file; do
1053 echo " $srcdir/config/$f"
1056 echo "Using ${out_host_hook_obj} for host machine hooks."
1058 if test "$host_xm_file" != "$build_xm_file"; then
1060 for f in $build_xm_file; do
1063 if test $count = a; then
1065 elif test $count = ax; then
1066 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1068 echo "Using the following build machine macro files:"
1069 for f in $build_xm_file; do
1070 echo " $srcdir/config/$f"
1075 # Check if a valid thread package
1076 case ${enable_threads_flag} in
1079 target_thread_file='single'
1083 target_thread_file='single'
1085 aix | dce | gnat | irix | posix | rtems | \
1086 single | solaris | vxworks | win32 )
1087 target_thread_file=${enable_threads_flag}
1090 echo "${enable_threads_flag} is an unknown thread package" 1>&2
1095 if test x${thread_file} = x; then
1096 # No thread file set by target-specific clauses in config.gcc,
1097 # so use file chosen by default logic above
1098 thread_file=${target_thread_file}
1101 if test x$enable___cxa_atexit = xyes || \
1102 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1103 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1104 [Define if you want to use __cxa_atexit, rather than atexit, to
1105 register C++ destructors for local statics and global objects.
1106 This is essential for fully standards-compliant handling of
1107 destructors, but requires __cxa_atexit in libc.])
1110 # Look for a file containing extra machine modes.
1111 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1112 extra_modes_file='$(srcdir)'/config/${extra_modes}
1113 AC_SUBST(extra_modes_file)
1114 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1115 [Define to the name of a file containing a list of extra machine modes
1116 for this architecture.])
1119 # auto-host.h is the file containing items generated by autoconf and is
1120 # the first file included by config.h.
1121 # If host=build, it is correct to have bconfig include auto-host.h
1122 # as well. If host!=build, we are in error and need to do more
1123 # work to find out the build config parameters.
1124 if test x$host = x$build
1126 build_auto=auto-host.h
1129 # We create a subdir, then run autoconf in the subdir.
1130 # To prevent recursion we set host and build for the new
1131 # invocation of configure to the build for this invocation
1138 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1139 *) realsrcdir=../${srcdir};;
1141 saved_CFLAGS="${CFLAGS}"
1142 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1143 ${realsrcdir}/configure \
1144 --target=$target_alias --host=$build_alias --build=$build_alias
1145 CFLAGS="${saved_CFLAGS}"
1147 # We just finished tests for the build machine, so rename
1148 # the file auto-build.h in the gcc directory.
1149 mv auto-host.h ../auto-build.h
1152 build_auto=auto-build.h
1153 FORBUILD=../${build_subdir}
1157 tm_file="${tm_file} defaults.h"
1158 tm_p_file="${tm_p_file} tm-preds.h"
1159 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1160 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1161 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1162 # put this back in temporarily.
1163 xm_file="ansidecl.h ${xm_file}"
1169 # Get the version trigger filename from the toplevel
1170 if test "${with_gcc_version_trigger+set}" = set; then
1171 gcc_version_trigger=$with_gcc_version_trigger
1173 gcc_version_trigger=${srcdir}/version.c
1176 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1177 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1179 # Compile in configure arguments.
1180 if test -f configargs.h ; then
1181 # Being re-configured.
1182 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1183 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1185 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1188 # Double all backslashes and backslash all quotes to turn
1189 # gcc_config_arguments into a C string.
1190 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1191 $gcc_config_arguments
1193 gcc_config_arguments_str=`cat conftest.out`
1196 cat > configargs.h <<EOF
1197 /* Generated automatically. */
1198 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1199 static const char thread_model[] = "$thread_file";
1201 static const struct {
1202 const char *name, *value;
1203 } configure_default_options[] = $configure_default_options;
1207 # Internationalization
1209 VERSION="$gcc_version"
1213 ZW_GNU_GETTEXT_SISTER_DIR
1215 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1216 # -liconv on the link line twice.
1217 case "$LIBINTL" in *$LIBICONV*)
1221 # Windows32 Registry support for specifying GCC installation paths.
1222 AC_ARG_ENABLE(win32-registry,
1223 [ --disable-win32-registry
1224 disable lookup of installation paths in the
1225 Registry on Windows hosts
1226 --enable-win32-registry enable registry lookup (default)
1227 --enable-win32-registry=KEY
1228 use KEY instead of GCC version as the last portion
1229 of the registry key],,)
1231 win32 | pe | cygwin* | mingw32* | uwin*)
1232 AC_MSG_CHECKING(whether windows registry support is requested)
1233 if test "x$enable_win32_registry" != xno; then
1234 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1235 [Define to 1 if installation paths should be looked up in Windows32
1236 Registry. Ignored on non windows32 hosts.])
1238 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1243 # Check if user specified a different registry key.
1244 case "x${enable_win32_registry}" in
1247 gcc_cv_win32_registry_key="$VERSION"
1250 # no registry lookup.
1251 gcc_cv_win32_registry_key=''
1254 # user-specified key.
1255 gcc_cv_win32_registry_key="$enable_win32_registry"
1259 if test "x$enable_win32_registry" != xno; then
1260 AC_MSG_CHECKING(registry key on windows hosts)
1261 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1262 [Define to be the last portion of registry key on windows hosts.])
1263 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1268 # Get an absolute path to the GCC top-level source directory
1269 holddir=`${PWDCMD-pwd}`
1271 topdir=`${PWDCMD-pwd}`
1274 # Conditionalize the makefile for this host machine.
1276 for f in ${host_xmake_file}
1278 if test -f ${srcdir}/config/$f
1280 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1284 # Conditionalize the makefile for this target machine.
1286 for f in ${tmake_file}
1288 if test -f ${srcdir}/config/$f
1290 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1293 tmake_file="${tmake_file_}"
1295 symbolic_link='ln -s'
1297 # If the host doesn't support symlinks, modify CC in
1298 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1299 # Otherwise, we can use "CC=$(CC)".
1301 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1303 cc_set_by_configure="\$(CC)"
1304 quoted_cc_set_by_configure="\$(CC)"
1305 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1306 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1309 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1311 symbolic_link="cp -p"
1315 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1316 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1317 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1318 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1322 out_object_file=`basename $out_file .c`.o
1326 for f in $tm_file; do
1329 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1330 tm_include_list="${tm_include_list} $f"
1333 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1334 tm_include_list="${tm_include_list} config/$f"
1341 for f in $tm_p_file; do
1344 tm_p_file_list="${tm_p_file_list} $f"
1345 tm_p_include_list="${tm_p_include_list} $f"
1348 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1349 tm_p_include_list="${tm_p_include_list} config/$f"
1355 for f in $xm_file; do
1358 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1359 xm_include_list="${xm_include_list} $f"
1362 xm_file_list="${xm_file_list} $f"
1363 xm_include_list="${xm_include_list} $f"
1366 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1367 xm_include_list="${xm_include_list} config/$f"
1373 host_xm_include_list=
1374 for f in $host_xm_file; do
1377 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1378 host_xm_include_list="${host_xm_include_list} $f"
1381 host_xm_file_list="${host_xm_file_list} $f"
1382 host_xm_include_list="${host_xm_include_list} $f"
1385 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1386 host_xm_include_list="${host_xm_include_list} config/$f"
1392 for f in $build_xm_file; do
1395 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1396 build_xm_include_list="${build_xm_include_list} $f"
1398 auto-build.h | auto-host.h )
1399 build_xm_file_list="${build_xm_file_list} $f"
1400 build_xm_include_list="${build_xm_include_list} $f"
1403 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1404 build_xm_include_list="${build_xm_include_list} config/$f"
1409 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1410 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1411 CROSS= AC_SUBST(CROSS)
1412 ALL=all.internal AC_SUBST(ALL)
1413 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1414 if test x$host != x$target
1416 CROSS="-DCROSS_COMPILE"
1418 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1419 case "$host","$target" in
1420 # Darwin crosses can use the host system's libraries and headers,
1421 # because of the fat library support. Of course, it must be the
1422 # same version of Darwin on both sides. Allow the user to
1423 # just say --target=foo-darwin without a version number to mean
1424 # "the version on this system".
1425 *-*-darwin*,*-*-darwin*)
1426 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1427 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1428 if test $hostos = $targetos -o $targetos = darwin ; then
1430 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1435 i?86-*-*,x86_64-*-* \
1436 | powerpc*-*-*,powerpc64*-*-*)
1437 CROSS="$CROSS -DNATIVE_CROSS" ;;
1439 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1440 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1441 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1444 # If this is a cross-compiler that does not
1445 # have its own set of headers then define
1448 # If this is using newlib, without having the headers available now,
1449 # then define inhibit_libc in LIBGCC2_CFLAGS.
1450 # This prevents libgcc2 from containing any code which requires libc
1453 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1454 test x$with_newlib = xyes ; } &&
1455 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1456 inhibit_libc=-Dinhibit_libc
1458 AC_SUBST(inhibit_libc)
1460 # When building gcc with a cross-compiler, we need to adjust things so
1461 # that the generator programs are still built with the native compiler.
1462 # Also, we cannot run fixincludes or fix-header.
1464 # These are the normal (build=host) settings:
1465 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1466 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1467 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1468 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1470 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1472 # Possibly disable fixproto, on a per-target basis.
1473 case ${use_fixproto} in
1478 STMP_FIXPROTO=stmp-fixproto
1481 AC_SUBST(STMP_FIXPROTO)
1483 # And these apply if build != host, or we are generating coverage data
1484 if test x$build != x$host || test "x$coverage_flags" != x
1487 BUILD_PREFIX_1=build-
1488 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1490 if test "x$TARGET_SYSTEM_ROOT" = x; then
1496 # Expand extra_headers to include complete path.
1497 # This substitutes for lots of t-* files.
1499 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1500 for file in ${extra_headers} ; do
1501 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1504 # Add a definition of USE_COLLECT2 if system wants one.
1505 case $use_collect2 in
1506 no) use_collect2= ;;
1509 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1510 xm_defines="${xm_defines} USE_COLLECT2"
1514 # Identify the assembler which will work hand-in-glove with the newly
1515 # built GCC, so that we can examine its features. This is the assembler
1516 # which will be driven by the driver program.
1518 # If build != host, and we aren't building gas in-tree, we identify a
1519 # build->target assembler and hope that it will have the same features
1520 # as the host->target assembler we'll be using.
1521 AC_MSG_CHECKING(what assembler to use)
1524 gcc_cv_gas_major_version=
1525 gcc_cv_gas_minor_version=
1526 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1527 if test -x "$DEFAULT_ASSEMBLER"; then
1528 gcc_cv_as="$DEFAULT_ASSEMBLER"
1529 elif test -x "$AS"; then
1531 elif test -x as$host_exeext; then
1532 # Build using assembler in the current directory.
1533 gcc_cv_as=./as$host_exeext
1534 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1535 && test -f ../gas/Makefile; then
1536 # Single tree build which includes gas.
1538 _gcc_COMPUTE_GAS_VERSION
1539 rm -f as$host_exeext
1540 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1541 in_tree_gas_is_elf=no
1542 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1543 || (grep 'obj_format = multi' ../gas/Makefile \
1544 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1546 in_tree_gas_is_elf=yes
1550 if test "x$gcc_cv_as" = x; then
1551 # Search the same directories that the installed compiler will
1552 # search. Else we may find the wrong assembler and lose. If we
1553 # do not find a suitable assembler binary, then try the user's
1556 # Also note we have to check MD_EXEC_PREFIX before checking the
1557 # user's path. Unfortunately, there is no good way to get at the
1558 # value of MD_EXEC_PREFIX here. So we do a brute force search
1559 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1560 # to be fixed as part of the make/configure rewrite too.
1562 if test "x$exec_prefix" = xNONE; then
1563 if test "x$prefix" = xNONE; then
1564 test_prefix=/usr/local
1569 test_prefix=$exec_prefix
1572 # If the loop below does not find an assembler, then use whatever
1573 # one we can find in the users's path.
1575 if test "x$program_prefix" != xNONE; then
1576 gcc_cv_as=${program_prefix}as$host_exeext
1578 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1581 test_dirs="$test_prefix/lib/gcc-lib/$target_noncanonical/$gcc_version \
1582 $test_prefix/lib/gcc-lib/$target_noncanonical \
1583 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1584 /usr/lib/gcc/$target_noncanonical \
1585 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1586 $test_prefix/$target_noncanonical/bin"
1588 if test x$host = x$target; then
1589 test_dirs="$test_dirs \
1594 /bsd43/usr/lib/cmplrs/cc \
1595 /usr/cross64/usr/bin \
1596 /usr/lib/cmplrs/cc \
1597 /sysv/usr/lib/cmplrs/cc \
1598 /svr4/usr/lib/cmplrs/cc \
1602 for dir in $test_dirs; do
1603 if test -x $dir/as$host_exeext; then
1604 gcc_cv_as=$dir/as$host_exeext
1609 case $in_tree_gas in
1611 AC_MSG_RESULT("newly built gas")
1614 AC_MSG_RESULT($gcc_cv_as)
1618 # Identify the linker which will work hand-in-glove with the newly
1619 # built GCC, so that we can examine its features. This is the linker
1620 # which will be driven by the driver program.
1622 # If build != host, and we aren't building gas in-tree, we identify a
1623 # build->target linker and hope that it will have the same features
1624 # as the host->target linker we'll be using.
1625 AC_MSG_CHECKING(what linker to use)
1628 gcc_cv_gld_major_version=
1629 gcc_cv_gld_minor_version=
1630 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1631 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1632 if test -x "$DEFAULT_LINKER"; then
1633 gcc_cv_ld="$DEFAULT_LINKER"
1634 elif test -x "$LD"; then
1636 elif test -x collect-ld$host_exeext; then
1637 # Build using linker in the current directory.
1638 gcc_cv_ld=./collect-ld$host_exeext
1639 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1640 && test -f ../ld/Makefile; then
1641 # Single tree build which includes ld.
1643 in_tree_ld_is_elf=no
1644 if (grep 'EMUL = .*elf' ../ld/Makefile \
1645 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1646 in_tree_ld_is_elf=yes
1648 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
1651 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1653 if test x$gcc_cv_gld_version != x; then
1658 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1659 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1661 rm -f collect-ld$host_exeext
1662 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1666 if test "x$gcc_cv_ld" = x; then
1667 # Search the same directories that the installed compiler will
1668 # search. Else we may find the wrong linker and lose. If we
1669 # do not find a suitable linker binary, then try the user's
1672 # Also note we have to check MD_EXEC_PREFIX before checking the
1673 # user's path. Unfortunately, there is no good way to get at the
1674 # value of MD_EXEC_PREFIX here. So we do a brute force search
1675 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1676 # to be fixed as part of the make/configure rewrite too.
1678 if test "x$exec_prefix" = xNONE; then
1679 if test "x$prefix" = xNONE; then
1680 test_prefix=/usr/local
1685 test_prefix=$exec_prefix
1688 # If the loop below does not find an linker, then use whatever
1689 # one we can find in the users's path.
1691 if test "x$program_prefix" != xNONE; then
1692 gcc_cv_ld=${program_prefix}ld$host_exeext
1694 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1697 test_dirs="$test_prefix/lib/gcc-lib/$target_noncanonical/$gcc_version \
1698 $test_prefix/lib/gcc-lib/$target_noncanonical \
1699 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1700 /usr/lib/gcc/$target_noncanonical \
1701 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1702 $test_prefix/$target_noncanonical/bin"
1704 if test x$host = x$target; then
1705 test_dirs="$test_dirs \
1710 /bsd43/usr/lib/cmplrs/cc \
1711 /usr/cross64/usr/bin \
1712 /usr/lib/cmplrs/cc \
1713 /sysv/usr/lib/cmplrs/cc \
1714 /svr4/usr/lib/cmplrs/cc \
1718 for dir in $test_dirs; do
1719 if test -x $dir/ld$host_exeext; then
1720 gcc_cv_ld=$dir/ld$host_exeext
1727 AC_MSG_RESULT("newly built ld")
1730 AC_MSG_RESULT($gcc_cv_ld)
1734 # Figure out what nm we will be using.
1735 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1736 AC_MSG_CHECKING(what nm to use)
1738 if test -x nm$host_exeext; then
1739 gcc_cv_nm=./nm$host_exeext
1740 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1741 && test -f ../binutils/Makefile; then
1742 # Single tree build which includes binutils.
1744 gcc_cv_nm=./nm$host_exeext
1745 rm -f nm$host_exeext
1746 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1747 elif test "x$program_prefix" != xNONE; then
1748 gcc_cv_nm=${program_prefix}nm$host_exeext
1750 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1753 yes) AC_MSG_RESULT("newly built nm") ;;
1754 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1757 # Figure out what objdump we will be using.
1758 AC_MSG_CHECKING(what objdump to use)
1760 if test -x objdump$host_exeext; then
1761 gcc_cv_objdump=./objdump$host_exeext
1762 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1763 && test -f ../binutils/Makefile; then
1764 # Single tree build which includes binutils.
1766 gcc_cv_objdump=./objdump$host_exeext
1767 rm -f objdump$host_exeext
1768 $symbolic_link ../binutils/objdump$host_exeext \
1769 objdump$host_exeext 2>/dev/null
1770 elif test "x$program_prefix" != xNONE; then
1771 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1773 gcc_cv_objdump=`echo objdump | \
1774 sed ${program_transform_name}`$host_exeext
1776 case $in_tree_objdump in
1777 yes) AC_MSG_RESULT("newly built objdump") ;;
1778 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1781 # Figure out what assembler alignment features are present.
1782 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1786 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1787 [Define if your assembler supports .balign and .p2align.])])
1789 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1792 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1793 [Define if your assembler supports specifying the maximum number
1794 of bytes to skip when using the GAS .p2align command.])])
1796 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1798 [conftest_label1: .word 0
1800 conftest_label2: .word 0
1802 [if test x$gcc_cv_nm != x; then
1803 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1804 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1805 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1807 else gcc_cv_as_subsection_m1=yes
1809 rm -f conftest.nm1 conftest.nm2
1811 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1812 [Define if your assembler supports .subsection and .subsection -1 starts
1813 emitting at the beginning of your section.])])
1815 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1818 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1820 # .hidden needs to be supported in both the assembler and the linker,
1821 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1822 # This is irritatingly difficult to feature test for; we have to check the
1823 # date string after the version number. If we've got an in-tree
1824 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1826 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1827 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1832 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1833 [if test $in_tree_ld = yes ; then
1835 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1836 && test $in_tree_ld_is_elf = yes; then
1837 gcc_cv_ld_hidden=yes
1840 gcc_cv_ld_hidden=yes
1841 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1842 if echo "$ld_ver" | grep GNU > /dev/null; then
1844 ld_vers=`echo $ld_ver | sed -n \
1845 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1846 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1847 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1848 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1849 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1850 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1851 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1852 if test 0"$ld_date" -lt 20020404; then
1853 if test -n "$ld_date"; then
1854 # If there was date string, but was earlier than 2002-04-04, fail
1856 elif test -z "$ld_vers"; then
1857 # If there was no date string nor ld version number, something is wrong
1860 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1861 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1862 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1863 test -z "$ld_vers_patch" && ld_vers_patch=0
1864 if test "$ld_vers_major" -lt 2; then
1866 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1867 gcc_cv_ld_hidden="no"
1868 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1875 # non-GNU linkers don't seem to support .hidden yet
1879 libgcc_visibility=no
1880 AC_SUBST(libgcc_visibility)
1881 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
1882 libgcc_visibility=yes
1883 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1884 [Define if your assembler and linker support .hidden.])
1887 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1888 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1896 [# GAS versions before 2.11 do not support uleb128,
1897 # despite appearing to.
1898 # ??? There exists an elf-specific test that will crash
1899 # the assembler. Perhaps it's better to figure out whether
1900 # arbitrary sections are supported and try the test.
1901 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
1902 if echo "$as_ver" | grep GNU > /dev/null; then
1904 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1905 as_major=`echo $as_ver | sed 's/\..*//'`
1906 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1908 if test $as_major -eq 2 && test $as_minor -lt 11
1910 else gcc_cv_as_leb128=yes
1913 [AC_DEFINE(HAVE_AS_LEB128, 1,
1914 [Define if your assembler supports .sleb128 and .uleb128.])])
1916 # GAS versions up to and including 2.11.0 may mis-optimize
1918 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
1926 .section .eh_frame,"aw",@progbits
1928 .4byte .LECIE1-.LSCIE1
1942 .4byte .LEFDE1-.LASFDE1
1944 .4byte .LASFDE1-__FRAME_BEGIN__
1952 [ cat > conftest.lit <<EOF
1953 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1954 0010 01000000 12000000 18000000 00000000 ................
1955 0020 08000000 04080000 0044 .........D
1957 cat > conftest.big <<EOF
1958 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1959 0010 00000001 00000012 00000018 00000000 ................
1960 0020 00000008 04000000 0844 .........D
1962 # If the assembler didn't choke, and we can objdump,
1963 # and we got the correct data, then succeed.
1964 if test x$gcc_cv_objdump != x \
1965 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1966 | tail -3 > conftest.got \
1967 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1968 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1970 gcc_cv_as_eh_frame=yes
1971 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
1972 gcc_cv_as_eh_frame=buggy
1974 # Uh oh, what do we do now?
1975 gcc_cv_as_eh_frame=no
1978 if test $gcc_cv_as_eh_frame = buggy; then
1979 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1980 [Define if your assembler mis-optimizes .eh_frame data.])
1983 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
1984 [elf,2,12,0], [--fatal-warnings],
1985 [.section .rodata.str, "aMS", @progbits, 1])
1986 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
1987 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
1988 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
1990 # Thread-local storage - the check is heavily parametrized.
1999 .section ".tdata","awT",@progbits
2002 ldq $27,__tls_get_addr($29) !literal!1
2003 lda $16,foo($29) !tlsgd!1
2004 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2005 ldq $27,__tls_get_addr($29) !literal!2
2006 lda $16,foo($29) !tlsldm!2
2007 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2008 ldq $1,foo($29) !gotdtprel
2009 ldah $2,foo($29) !dtprelhi
2010 lda $3,foo($2) !dtprello
2011 lda $4,foo($29) !dtprel
2012 ldq $1,foo($29) !gottprel
2013 ldah $2,foo($29) !tprelhi
2014 lda $3,foo($2) !tprello
2015 lda $4,foo($29) !tprel'
2021 .section ".tdata","awT",@progbits
2025 leal foo@TLSGD(,%ebx,1), %eax
2026 leal foo@TLSLDM(%ebx), %eax
2027 leal foo@DTPOFF(%eax), %edx
2028 movl foo@GOTTPOFF(%ebx), %eax
2029 subl foo@GOTTPOFF(%ebx), %eax
2030 addl foo@GOTNTPOFF(%ebx), %eax
2031 movl foo@INDNTPOFF, %eax
2032 movl $foo@TPOFF, %eax
2033 subl $foo@TPOFF, %eax
2034 leal foo@NTPOFF(%ecx), %eax'
2040 .section ".tdata","awT",@progbits
2044 leaq foo@TLSGD(%rip), %rdi
2045 leaq foo@TLSLD(%rip), %rdi
2046 leaq foo@DTPOFF(%rax), %rdx
2047 movq foo@GOTTPOFF(%rip), %rax
2048 movq $foo@TPOFF, %rax'
2054 .section ".tdata","awT",@progbits
2057 addl r16 = @ltoff(@dtpmod(foo#)), gp
2058 addl r17 = @ltoff(@dtprel(foo#)), gp
2059 addl r18 = @ltoff(@tprel(foo#)), gp
2060 addl r19 = @dtprel(foo#), gp
2061 adds r21 = @dtprel(foo#), r13
2062 movl r23 = @dtprel(foo#)
2063 addl r20 = @tprel(foo#), gp
2064 adds r22 = @tprel(foo#), r13
2065 movl r24 = @tprel(foo#)'
2071 .section ".tdata","awT",@progbits
2079 addi 3,31,ld0@got@tlsgd
2081 addi 3,31,x1@got@tlsld
2084 addis 9,3,x2@dtprel@ha
2085 addi 9,9,x2@dtprel@l
2086 lwz 9,x3@got@tprel(31)
2089 addis 9,2,x2@tprel@ha
2090 addi 9,9,x2@tprel@l'
2097 .section ".tdata","awT",@progbits
2105 addi 3,2,ld0@got@tlsgd
2111 addi 3,2,x1@got@tlsld
2117 addis 9,3,x2@dtprel@ha
2118 addi 9,9,x2@dtprel@l
2121 ld 9,x3@got@dtprel(2)
2131 .section ".tdata","awT",@progbits
2140 l %r1,foo@GOTNTPOFF(%r12)
2141 l %r1,0(%r1):tls_load:foo
2142 bas %r14,0(%r1,%r13):tls_gdcall:foo
2143 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2150 .section ".tdata","awT",@progbits
2158 lg %r1,foo@GOTNTPOFF(%r12)
2159 larl %r1,foo@INDNTPOFF
2160 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2161 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2164 tls_as_opt="-m64 -Aesame"
2166 sh-*-* | sh[34]-*-*)
2168 .section ".tdata","awT",@progbits
2181 .section ".tdata","awT",@progbits
2184 sethi %tgd_hi22(foo), %o0
2185 add %o0, %tgd_lo10(foo), %o1
2186 add %l7, %o1, %o0, %tgd_add(foo)
2187 call __tls_get_addr, %tgd_call(foo)
2188 sethi %tldm_hi22(foo), %l1
2189 add %l1, %tldm_lo10(foo), %l2
2190 add %l7, %l2, %o0, %tldm_add(foo)
2191 call __tls_get_addr, %tldm_call(foo)
2192 sethi %tldo_hix22(foo), %l3
2193 xor %l3, %tldo_lox10(foo), %l4
2194 add %o0, %l4, %l5, %tldo_add(foo)
2195 sethi %tie_hi22(foo), %o3
2196 add %o3, %tie_lo10(foo), %o3
2197 ld [%l7 + %o3], %o2, %tie_ld(foo)
2198 add %g7, %o2, %o4, %tie_add(foo)
2199 sethi %tle_hix22(foo), %l1
2200 xor %l1, %tle_lox10(foo), %o5
2201 ld [%g7 + %o5], %o1'
2208 if test -z "$tls_first_major"; then
2209 : # If we don't have a check, assume no support.
2211 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2212 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt --fatal-warnings],
2214 [AC_DEFINE(HAVE_AS_TLS, 1,
2215 [Define if your assembler supports thread-local storage.])])
2218 # Target-specific assembler checks.
2221 # All TARGET_ABI_OSF targets.
2222 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2223 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2224 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2227 extbl $3, $2, $3 !lituse_bytoff!1
2228 ldq $2, a($29) !literal!1
2229 ldq $4, b($29) !literal!2
2230 ldq_u $3, 0($2) !lituse_base!1
2231 ldq $27, f($29) !literal!5
2232 jsr $26, ($27), f !lituse_jsr!5
2233 ldah $29, 0($26) !gpdisp!3
2234 lda $0, c($29) !gprel
2235 ldah $1, d($29) !gprelhigh
2236 lda $1, d($1) !gprellow
2237 lda $29, 0($29) !gpdisp!3],,
2238 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2239 [Define if your assembler supports explicit relocations.])])
2243 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2244 [.register %g2, #scratch],,
2245 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2246 [Define if your assembler supports .register.])])
2248 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2250 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2251 [Define if your assembler supports -relax option.])])
2253 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2254 gcc_cv_as_sparc_ua_pcrel,,
2262 .uaword %r_disp32(foo)],
2263 [if test x$gcc_cv_ld != x \
2264 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2265 gcc_cv_as_sparc_ua_pcrel=yes
2268 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2269 [Define if your assembler and linker support unaligned PC relative relocs.])
2271 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2272 gcc_cv_as_sparc_ua_pcrel_hidden,,
2277 .uaword %r_disp32(foo)
2278 .byte 0x32, 0x33, 0x34
2283 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2284 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2285 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2286 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2287 if $gcc_cv_objdump -R conftest 2> /dev/null \
2288 | grep 'DISP32' > /dev/null 2>&1; then
2291 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2295 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2296 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2297 ]) # unaligned pcrel relocs
2299 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2300 gcc_cv_as_sparc_offsetable_lo10,,
2303 or %g1, %lo(ab) + 12, %g1
2304 or %g1, %lo(ab + 12), %g1],
2305 [if test x$gcc_cv_objdump != x \
2306 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2307 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2308 gcc_cv_as_offsetable_lo10=yes
2310 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2311 [Define if your assembler supports offsetable %lo().])])
2315 i[34567]86-*-* | x86_64-*-*)
2317 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2318 gcc_cv_as_ix86_filds_fists,
2319 [2,9,0],, [filds mem; fists mem],,
2320 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2321 [Define if your assembler uses the new HImode fild and fist notation.])])
2323 gcc_GAS_CHECK_FEATURE([cmov syntax],
2324 gcc_cv_as_ix86_cmov_sun_syntax,,,
2325 [cmovl.l %edx, %eax],,
2326 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2327 [Define if your assembler supports the Sun syntax for cmov.])])
2329 # This one is used unconditionally by i386.[ch]; it is to be defined
2330 # to 1 if the feature is present, 0 otherwise.
2331 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2332 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2338 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2339 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2340 [Define true if the assembler supports '.long foo@GOTOFF'.])
2344 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2345 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2347 addl r15 = @ltoffx(x#), gp
2349 ld8.mov r16 = [[r15]], x#],,
2350 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2351 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2357 *-*-aix) conftest_s=' .csect .text[PR]';;
2358 *) conftest_s=' .text';;
2360 conftest_s="$conftest_s
2363 gcc_GAS_CHECK_FEATURE([mfcr field support],
2364 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2366 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2367 [Define if your assembler supports mfcr field.])])
2371 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2372 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2373 [ lw $4,%gp_rel(foo)($4)],,
2374 [if test x$target_cpu_default = x
2375 then target_cpu_default=MASK_EXPLICIT_RELOCS
2376 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2381 # ??? Not all targets support dwarf2 debug_line, even within a version
2382 # of gas. Moreover, we need to emit a valid instruction to trigger any
2383 # info to the output file. So, as supported targets are added to gas 2.11,
2384 # add some instruction here to (also) show we expect this might work.
2385 # ??? Once 2.11 is released, probably need to add first known working
2386 # version to the per-target configury.
2388 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2389 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2390 | xstormy16*-*-* | cris-*-*)
2400 if test x"$insn" != x; then
2402 .file 1 \"conftest.s\"
2405 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2406 gcc_cv_as_dwarf2_debug_line,
2407 [elf,2,11,0],, [$conftest_s],
2408 [# ??? This fails with non-gnu grep. Maybe use objdump?
2409 if grep debug_line conftest.o > /dev/null 2>&1; then
2410 gcc_cv_as_dwarf2_debug_line=yes
2413 # The .debug_line file table must be in the exact order that
2414 # we specified the files, since these indices are also used
2415 # by DW_AT_decl_file. Approximate this test by testing if
2416 # the assembler bitches if the same index is assigned twice.
2417 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2418 gcc_cv_as_dwarf2_file_buggy,,,
2422 if test $gcc_cv_as_dwarf2_debug_line = yes \
2423 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2424 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2425 [Define if your assembler supports dwarf2 .file/.loc directives,
2426 and preserves file table indices exactly as given.])
2429 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2430 gcc_cv_as_gdwarf2_flag,
2431 [elf,2,11,0], [--gdwarf2], [$insn],,
2432 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2433 [Define if your assembler supports the --gdwarf2 option.])])
2435 gcc_GAS_CHECK_FEATURE([--gstabs option],
2436 gcc_cv_as_gstabs_flag,
2437 [elf,2,11,0], [--gstabs], [$insn],
2438 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2439 # and warns about it, but still exits successfully. So check for
2441 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2443 else gcc_cv_as_gstabs_flag=yes
2445 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2446 [Define if your assembler supports the --gstabs option.])])
2449 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2450 gcc_cv_ld_ro_rw_mix=unknown
2451 if test $in_tree_ld = yes ; then
2452 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2453 && test $in_tree_ld_is_elf = yes; then
2454 gcc_cv_ld_ro_rw_mix=read-write
2456 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2457 echo '.section myfoosect, "a"' > conftest1.s
2458 echo '.section myfoosect, "aw"' > conftest2.s
2459 echo '.byte 1' >> conftest2.s
2460 echo '.section myfoosect, "a"' > conftest3.s
2461 echo '.byte 0' >> conftest3.s
2462 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2463 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2464 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2465 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2466 conftest2.o conftest3.o > /dev/null 2>&1; then
2467 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2468 | sed -e '/myfoosect/!d' -e N`
2469 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2470 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2471 gcc_cv_ld_ro_rw_mix=read-only
2473 gcc_cv_ld_ro_rw_mix=read-write
2478 rm -f conftest.* conftest[123].*
2481 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2482 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2483 [Define if your linker links a mix of read-only
2484 and read-write sections into a read-write section.])
2486 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2488 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2489 gcc_cv_ld_eh_frame_hdr=no
2490 if test $in_tree_ld = yes ; then
2491 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2492 && test $in_tree_ld_is_elf = yes; then
2493 gcc_cv_ld_eh_frame_hdr=yes
2495 elif test x$gcc_cv_ld != x; then
2496 # Check if linker supports --eh-frame-hdr option
2497 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2498 gcc_cv_ld_eh_frame_hdr=yes
2501 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2502 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2503 [Define if your linker supports --eh-frame-hdr option.])
2505 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2507 AC_MSG_CHECKING(linker position independent executable support)
2509 if test $in_tree_ld = yes ; then
2510 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2511 && test $in_tree_ld_is_elf = yes; then
2514 elif test x$gcc_cv_ld != x; then
2515 # Check if linker supports -pie option
2516 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2520 if test x"$gcc_cv_ld_pie" = xyes; then
2521 AC_DEFINE(HAVE_LD_PIE, 1,
2522 [Define if your linker supports -pie option.])
2524 AC_MSG_RESULT($gcc_cv_ld_pie)
2526 # Miscellaneous target-specific checks.
2529 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2530 gcc_cv_mips_libgloss_startup=no
2531 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2532 if test "x$exec_prefix" = xNONE; then
2533 if test "x$prefix" = xNONE; then
2534 test_prefix=/usr/local
2539 test_prefix=$exec_prefix
2541 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_noncanonical/lib/idt.ld
2543 if grep '^STARTUP' $f > /dev/null 2>&1; then
2544 gcc_cv_mips_libgloss_startup=yes
2548 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2549 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2550 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2552 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2556 if test x$with_sysroot = x && test x$host = x$target \
2557 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2558 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2559 [Define to PREFIX/include if cpp should also search that directory.])
2562 # Figure out what language subdirectories are present.
2563 # Look if the user specified --enable-languages="..."; if not, use
2564 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2566 # NB: embedded tabs in this IF block -- do not untabify
2567 if test x"${enable_languages+set}" != xset; then
2568 if test x"${LANGUAGES+set}" = xset; then
2569 enable_languages="${LANGUAGES}"
2570 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2573 enable_languages=all
2576 if test x"${enable_languages}" = x \
2577 || test x"${enable_languages}" = xyes;
2579 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2582 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2584 # First scan to see if an enabled language requires some other language.
2585 # We assume that a given config-lang.in will list all the language
2586 # front ends it requires, even if some are required indirectly.
2587 for lang in ${srcdir}/*/config-lang.in
2590 # The odd quoting in the next line works around
2591 # an apparent bug in bash 1.12 on linux.
2593 ${srcdir}/[*]/config-lang.in)
2596 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2597 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2598 for other in $this_lang_requires
2600 case ,${enable_languages}, in
2606 enable_languages="$enable_languages,$other"
2615 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2618 for lang in ${srcdir}/*/config-lang.in
2621 # The odd quoting in the next line works around
2622 # an apparent bug in bash 1.12 on linux.
2624 ${srcdir}/[*]/config-lang.in) ;;
2626 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2627 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2628 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2629 if test "x$lang_alias" = x
2631 echo "$lang doesn't set \$language." 1>&2
2634 case ${build_by_default},${enable_languages}, in
2635 *,$lang_alias,*) add_this_lang=yes ;;
2636 no,*) add_this_lang=no ;;
2637 *,all,*) add_this_lang=yes ;;
2638 *) add_this_lang=no ;;
2640 found_languages="${found_languages} ${lang_alias}"
2641 if test x"${add_this_lang}" = xyes; then
2643 ${srcdir}/ada/config-lang.in)
2644 if test x$have_gnat = xyes ; then
2645 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2649 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2659 for expected_language in ${expected_languages} ..
2661 if test "${expected_language}" != ..; then
2662 missing_language="${expected_language}"
2663 if test "${expected_language}" = "c" \
2664 || test "${expected_language}" = "all"; then
2667 for found_language in ${found_languages} ..
2669 if test "${found_language}" != ..; then
2670 if test "${expected_language}" = "${found_language}"; then
2675 if test "x${missing_language}" != x; then
2676 missing_languages="${missing_languages} ${missing_language}"
2681 if test "x$missing_languages" != x; then
2683 The following requested languages were not found:${missing_languages}
2684 The following languages were available: c${found_languages}])
2687 # Make gthr-default.h if we have a thread file.
2689 if test $thread_file != single; then
2690 rm -f gthr-default.h
2691 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2692 gthread_flags=-DHAVE_GTHR_DEFAULT
2694 AC_SUBST(gthread_flags)
2696 # Find out what GC implementation we want, or may, use.
2698 [ --with-gc={simple,page,zone} choose the garbage collection mechanism to use
2701 simple | page | zone)
2705 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2710 echo "Using $GGC for garbage collection."
2712 # Use the system's zlib library.
2714 zlibinc="-I\$(srcdir)/../zlib"
2715 AC_ARG_WITH(system-zlib,
2716 [ --with-system-zlib use installed libz],
2723 dnl Very limited version of automake's enable-maintainer-mode
2725 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2726 dnl maintainer-mode is disabled by default
2727 AC_ARG_ENABLE(maintainer-mode,
2728 [ --enable-maintainer-mode
2729 enable make rules and dependencies not useful
2730 (and sometimes confusing) to the casual installer],
2731 maintainer_mode=$enableval,
2734 AC_MSG_RESULT($maintainer_mode)
2736 if test "$maintainer_mode" = "yes"; then
2743 # Make empty files to contain the specs and options for each language.
2744 # Then add #include lines to for a compiler that has specs and/or options.
2749 for subdir in . $subdirs
2751 if test -f $srcdir/$subdir/lang.opt; then
2752 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2754 if test -f $srcdir/$subdir/lang-specs.h; then
2755 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2757 if test -f $srcdir/$subdir/$subdir-tree.def; then
2758 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2762 # These (without "all_") are set in each config-lang.in.
2763 # `language' must be a single word so is spelled singularly.
2768 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2769 # List of language makefile fragments.
2771 # List of language subdirectory makefiles. Deprecated.
2773 # Files for gengtype
2774 all_gtfiles="$target_gtfiles"
2775 # Files for gengtype with language
2776 all_gtfiles_files_langs=
2777 all_gtfiles_files_files=
2779 # Add the language fragments.
2780 # Languages are added via two mechanisms. Some information must be
2781 # recorded in makefile variables, these are defined in config-lang.in.
2782 # We accumulate them and plug them into the main Makefile.
2783 # The other mechanism is a set of hooks for each of the main targets
2784 # like `clean', `install', etc.
2786 language_hooks="Make-hooks"
2796 . ${srcdir}/$s/config-lang.in
2797 if test "x$language" = x
2799 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2802 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2803 if test -f ${srcdir}/$s/Makefile.in
2804 then all_lang_makefiles="$s/Makefile"
2806 all_languages="$all_languages $language"
2807 if test "x$boot_language" = xyes
2809 all_boot_languages="$all_boot_languages $language"
2811 all_compilers="$all_compilers $compilers"
2812 all_stagestuff="$all_stagestuff $stagestuff"
2813 all_outputs="$all_outputs $outputs"
2814 all_gtfiles="$all_gtfiles $gtfiles"
2817 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2818 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2822 # Pick up gtfiles for c
2825 . ${srcdir}/c-config-lang.in
2826 all_gtfiles="$all_gtfiles $gtfiles"
2829 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2830 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2834 for language in $all_languages
2836 check_languages="$check_languages check-$language"
2839 # We link each language in with a set of hooks, reached indirectly via
2844 target_list="all.build all.cross start.encap rest.encap tags \
2845 install-normal install-common install-man \
2847 mostlyclean clean distclean extraclean maintainer-clean \
2848 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2849 for t in $target_list
2852 for lang in $all_languages
2856 echo "lang.$t: $x" >> Make-hooks
2861 echo "dir ." > .gdbinit
2862 echo "dir ${srcdir}" >> .gdbinit
2863 if test x$gdb_needs_out_file_path = xyes
2865 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2867 if test "x$subdirs" != x; then
2870 echo "dir ${srcdir}/$s" >> .gdbinit
2873 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2875 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2876 # absolute path for gcc_tooldir based on inserting the number of up-directory
2877 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2878 # $(libsubdir)/@(unlibsubdir) based path.
2879 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2880 # make and thus we'd get different behavior depending on where we built the
2882 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2883 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
2885 changequote(<<, >>)dnl
2886 # An explanation of the sed strings:
2887 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2888 # -e 's|/$||' match a trailing forward slash and eliminates it
2889 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2890 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2892 # (*) Note this pattern overwrites the first character of the string
2893 # with a forward slash if one is not already present. This is not a
2894 # problem because the exact names of the sub-directories concerned is
2895 # unimportant, just the number of them matters.
2897 # The practical upshot of these patterns is like this:
2899 # prefix exec_prefix result
2900 # ------ ----------- ------
2902 # /foo/ /foo/bar ../
2903 # /foo /foo/bar/ ../
2904 # /foo/ /foo/bar/ ../
2905 # /foo /foo/bar/ugg ../../
2908 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
2909 changequote([, ])dnl
2911 AC_SUBST(gcc_tooldir)
2914 # Find a directory in which to install a shared libgcc.
2916 AC_ARG_ENABLE(version-specific-runtime-libs,
2917 [ --enable-version-specific-runtime-libs
2918 specify that runtime libraries should be
2919 installed in a compiler-specific directory])
2921 AC_ARG_WITH(slibdir,
2922 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2923 slibdir="$with_slibdir",
2924 if test "${enable_version_specific_runtime_libs+set}" = set; then
2925 slibdir='$(libsubdir)'
2926 elif test "$host" != "$target"; then
2927 slibdir='$(build_tooldir)/lib'
2933 objdir=`${PWDCMD-pwd}`
2936 # Substitute configuration variables
2941 AC_SUBST(all_boot_languages)
2942 AC_SUBST(all_compilers)
2943 AC_SUBST(all_gtfiles)
2944 AC_SUBST(all_gtfiles_files_langs)
2945 AC_SUBST(all_gtfiles_files_files)
2946 AC_SUBST(all_lang_makefrags)
2947 AC_SUBST(all_lang_makefiles)
2948 AC_SUBST(all_languages)
2949 AC_SUBST(all_stagestuff)
2950 AC_SUBST(build_exeext)
2951 AC_SUBST(build_install_headers_dir)
2952 AC_SUBST(build_xm_file_list)
2953 AC_SUBST(build_xm_include_list)
2954 AC_SUBST(build_xm_defines)
2955 AC_SUBST(check_languages)
2956 AC_SUBST(cc_set_by_configure)
2957 AC_SUBST(quoted_cc_set_by_configure)
2958 AC_SUBST(cpp_install_dir)
2959 AC_SUBST(xmake_file)
2960 AC_SUBST(tmake_file)
2961 AC_SUBST(extra_headers_list)
2962 AC_SUBST(extra_objs)
2963 AC_SUBST(extra_parts)
2964 AC_SUBST(extra_passes)
2965 AC_SUBST(extra_programs)
2966 AC_SUBST(float_h_file)
2967 AC_SUBST(gcc_config_arguments)
2968 AC_SUBST(gcc_gxx_include_dir)
2969 AC_SUBST(libstdcxx_incdir)
2970 AC_SUBST(gcc_version)
2971 AC_SUBST(gcc_version_full)
2972 AC_SUBST(gcc_version_trigger)
2973 AC_SUBST(host_exeext)
2974 AC_SUBST(host_extra_gcc_objs)
2975 AC_SUBST(host_xm_file_list)
2976 AC_SUBST(host_xm_include_list)
2977 AC_SUBST(host_xm_defines)
2978 AC_SUBST(out_host_hook_obj)
2980 AC_SUBST(lang_opt_files)
2981 AC_SUBST(lang_specs_files)
2982 AC_SUBST(lang_tree_files)
2983 AC_SUBST(local_prefix)
2985 AC_SUBST(objc_boehm_gc)
2987 AC_SUBST(out_object_file)
2988 AC_SUBST(stage_prefix_set_by_configure)
2989 AC_SUBST(quoted_stage_prefix_set_by_configure)
2990 AC_SUBST(symbolic_link)
2991 AC_SUBST(thread_file)
2992 AC_SUBST(tm_file_list)
2993 AC_SUBST(tm_include_list)
2994 AC_SUBST(tm_defines)
2995 AC_SUBST(tm_p_file_list)
2996 AC_SUBST(tm_p_include_list)
2997 AC_SUBST(xm_file_list)
2998 AC_SUBST(xm_include_list)
2999 AC_SUBST(xm_defines)
3000 AC_SUBST(target_noncanonical)
3001 AC_SUBST(c_target_objs)
3002 AC_SUBST(cxx_target_objs)
3003 AC_SUBST(target_cpu_default)
3005 AC_SUBST_FILE(language_hooks)
3008 if test x${build} = x${host} ; then
3009 if test x${host} = x${target} ; then
3010 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3012 echo "Links are now set up to build a cross-compiler" 1>&2
3013 echo " from ${host} to ${target}." 1>&2
3016 if test x${host} = x${target} ; then
3017 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3018 echo " for ${target}." 1>&2
3020 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3021 echo " from ${host} to ${target}." 1>&2
3025 # Configure the subdirectories
3026 # AC_CONFIG_SUBDIRS($subdirs)
3028 # Create the Makefile
3029 # and configure language subdirectories
3030 AC_OUTPUT($all_outputs,
3032 case x$CONFIG_HEADERS in
3033 xauto-host.h:config.in)
3036 # Make sure all the subdirs exist.
3039 test -d $d || mkdir $d
3041 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3042 # bootstrapping and the installation procedure can still use
3043 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3044 # FLAGS_TO_PASS has been modified to solve the problem there.
3045 # This is virtually a duplicate of what happens in configure.lang; we do
3046 # an extra check to make sure this only happens if ln -s can be used.
3047 if test "$symbolic_link" = "ln -s"; then
3048 for d in ${subdirs} fixinc ; do
3049 STARTDIR=`${PWDCMD-pwd}`
3051 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3054 $symbolic_link ../$t $t 2>/dev/null
3061 symbolic_link='$symbolic_link'