2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003
5 # Free Software Foundation, Inc.
7 #This file is part of GCC.
9 #GCC is free software; you can redistribute it and/or modify it under
10 #the terms of the GNU General Public License as published by the Free
11 #Software Foundation; either version 2, or (at your option) any later
14 #GCC is distributed in the hope that it will be useful, but WITHOUT
15 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 #You should have received a copy of the GNU General Public License
20 #along with GCC; see the file COPYING. If not, write to the Free
21 #Software Foundation, 59 Temple Place - Suite 330, Boston, MA
24 # --------------------------------
25 # Initialization and sanity checks
26 # --------------------------------
30 AC_CONFIG_HEADER(auto-host.h:config.in)
32 # Determine the host, build, and target systems
35 # Determine the target- and build-specific subdirectories
38 # Set program_transform_name
41 # Check for bogus environment variables.
42 # Test if LIBRARY_PATH contains the notation for the current directory
43 # since this would lead to problems installing/building glibc.
44 # LIBRARY_PATH contains the current directory if one of the following
46 # - one of the terminals (":" and ";") is the first or last sign
47 # - two terminals occur directly after each other
48 # - the path contains an element with a dot in it
49 AC_MSG_CHECKING(LIBRARY_PATH variable)
51 case ${LIBRARY_PATH} in
52 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
53 library_path_setting="contains current directory"
56 library_path_setting="ok"
60 AC_MSG_RESULT($library_path_setting)
61 if test "$library_path_setting" != "ok"; then
63 *** LIBRARY_PATH shouldn't contain the current directory when
64 *** building gcc. Please change the environment variable
65 *** and run configure again.])
68 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
69 # since this would lead to problems installing/building glibc.
70 # GCC_EXEC_PREFIX contains the current directory if one of the following
72 # - one of the terminals (":" and ";") is the first or last sign
73 # - two terminals occur directly after each other
74 # - the path contains an element with a dot in it
75 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
77 case ${GCC_EXEC_PREFIX} in
78 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
79 gcc_exec_prefix_setting="contains current directory"
82 gcc_exec_prefix_setting="ok"
86 AC_MSG_RESULT($gcc_exec_prefix_setting)
87 if test "$gcc_exec_prefix_setting" != "ok"; then
89 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
90 *** building gcc. Please change the environment variable
91 *** and run configure again.])
98 # Specify the local prefix
100 AC_ARG_WITH(local-prefix,
101 [ --with-local-prefix=DIR specifies directory to put local include],
102 [case "${withval}" in
103 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
105 *) local_prefix=$with_local_prefix ;;
108 # Default local prefix if it is empty
109 if test x$local_prefix = x; then
110 local_prefix=/usr/local
113 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
114 # passed in by the toplevel make and thus we'd get different behavior
115 # depending on where we built the sources.
117 # Specify the g++ header file directory
118 AC_ARG_WITH(gxx-include-dir,
119 [ --with-gxx-include-dir=DIR
120 specifies directory to put g++ header files],
121 [case "${withval}" in
122 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
124 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
127 if test x${gcc_gxx_include_dir} = x; then
128 if test x${enable_version_specific_runtime_libs} = xyes; then
129 gcc_gxx_include_dir='${libsubdir}/include/c++'
131 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
132 changequote(<<, >>)dnl
133 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
138 AC_ARG_WITH(cpp_install_dir,
139 [ --with-cpp-install-dir=DIR
140 install the user visible C preprocessor in DIR
141 (relative to PREFIX) as well as PREFIX/bin],
142 [if test x$withval = xyes; then
143 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
144 elif test x$withval != xno; then
145 cpp_install_dir=$withval
148 # -------------------
149 # Find default linker
150 # -------------------
154 [ --with-gnu-ld arrange to work with GNU ld.],
155 gnu_ld_flag="$with_gnu_ld",
158 # With pre-defined ld
160 [ --with-ld arrange to use the specified ld (full pathname)],
161 DEFAULT_LINKER="$with_ld")
162 if test x"${DEFAULT_LINKER+set}" = x"set"; then
163 if test ! -x "$DEFAULT_LINKER"; then
164 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
165 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
168 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
169 [Define to enable the use of a default linker.])
172 AC_MSG_CHECKING([whether a default linker was specified])
173 if test x"${DEFAULT_LINKER+set}" = x"set"; then
174 if test x"$gnu_ld_flag" = x"no"; then
175 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
177 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
183 # ----------------------
184 # Find default assembler
185 # ----------------------
189 [ --with-gnu-as arrange to work with GNU as],
190 gas_flag="$with_gnu_as",
194 [ --with-as arrange to use the specified as (full pathname)],
195 DEFAULT_ASSEMBLER="$with_as")
196 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
197 if test ! -x "$DEFAULT_ASSEMBLER"; then
198 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
199 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
202 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
203 [Define to enable the use of a default assembler.])
206 AC_MSG_CHECKING([whether a default assembler was specified])
207 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
208 if test x"$gas_flag" = x"no"; then
209 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
211 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
221 # Find the native compiler
224 # autoconf is lame and doesn't give us any substitution variable for this.
225 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
226 NO_MINUS_C_MINUS_O=yes
228 OUTPUT_OPTION='-o $@'
230 AC_SUBST(NO_MINUS_C_MINUS_O)
231 AC_SUBST(OUTPUT_OPTION)
233 # -------------------------
234 # Check C compiler features
235 # -------------------------
237 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
238 ac_cv_prog_cc_no_long_long,
239 [save_CFLAGS="$CFLAGS"
240 CFLAGS="-Wno-long-long"
241 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
242 ac_cv_prog_cc_no_long_long=no)
243 CFLAGS="$save_CFLAGS"])
251 # sizeof(char) is 1 by definition.
252 AC_COMPILE_CHECK_SIZEOF(void *)
253 AC_COMPILE_CHECK_SIZEOF(short)
254 AC_COMPILE_CHECK_SIZEOF(int)
255 AC_COMPILE_CHECK_SIZEOF(long)
256 if test $ac_cv_c_long_long = yes; then
257 AC_COMPILE_CHECK_SIZEOF(long long)
259 if test $ac_cv_c___int64 = yes; then
260 AC_COMPILE_CHECK_SIZEOF(__int64)
267 # See if GNAT has been installed
270 if test x$have_gnat != xno ; then
271 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
272 ac_cv_prog_adac_no_long_long,
273 [cat >conftest.adb <<EOF
274 procedure conftest is begin null; end conftest;
276 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
277 ac_cv_prog_adac_no_long_long=yes
279 ac_cv_prog_adac_no_long_long=no
283 ac_cv_prog_adac_no_long_long=yes
286 # ---------------------
287 # Warnings and checking
288 # ---------------------
291 if test $ac_cv_prog_cc_no_long_long = yes && \
292 test $ac_cv_prog_adac_no_long_long = yes ; then
293 strict1_warn="-pedantic -Wno-long-long"
295 AC_SUBST(strict1_warn)
297 # If the native compiler is GCC, we can enable warnings even in stage1.
298 # That's useful for people building cross-compilers, or just running a
301 if test "x$GCC" = "xyes"; then
302 warn_cflags='$(GCC_WARN_CFLAGS)'
304 AC_SUBST(warn_cflags)
306 # Enable -Werror in bootstrap stage2 and later.
307 # Change the default to "no" on release branches.
308 AC_ARG_ENABLE(werror,
309 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
311 if test x$enable_werror = xyes ; then
316 # Enable expensive internal checks
317 AC_ARG_ENABLE(checking,
318 [ --enable-checking[=LIST]
319 enable expensive run-time checks. With LIST,
320 enable only specific categories of checks.
321 Categories are: misc,tree,rtl,rtlflag,gc,gcac,fold;
322 default is misc,tree,gc,rtlflag],
328 ac_gc_always_collect=
330 case "${enableval}" in
331 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
332 ac_rtlflag_checking=1 ;;
334 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
335 set fnord $enableval; shift
340 misc) ac_checking=1 ;;
341 tree) ac_tree_checking=1 ;;
342 rtlflag) ac_rtlflag_checking=1 ;;
343 rtl) ac_rtl_checking=1 ;;
344 gc) ac_gc_checking=1 ;;
345 gcac) ac_gc_always_collect=1 ;;
346 fold) ac_fold_checking=1 ;;
347 valgrind) ac_checking_valgrind=1 ;;
348 *) AC_MSG_ERROR(unknown check category $check) ;;
354 # Enable some checks by default for development versions of GCC
355 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
357 if test x$ac_checking != x ; then
358 AC_DEFINE(ENABLE_CHECKING, 1,
359 [Define if you want more run-time sanity checks. This one gets a grab
360 bag of miscellaneous but relatively cheap checks.])
361 nocommon_flag=-fno-common
363 AC_SUBST(nocommon_flag)
364 if test x$ac_tree_checking != x ; then
365 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
366 [Define if you want all operations on trees (the basic data
367 structure of the front ends) to be checked for dynamic type safety
368 at runtime. This is moderately expensive.])
370 if test x$ac_rtl_checking != x ; then
371 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
372 [Define if you want all operations on RTL (the basic data structure
373 of the optimizer and back end) to be checked for dynamic type safety
374 at runtime. This is quite expensive.])
376 if test x$ac_rtlflag_checking != x ; then
377 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
378 [Define if you want RTL flag accesses to be checked against the RTL
379 codes that are supported for each access macro. This is relatively
382 if test x$ac_gc_checking != x ; then
383 AC_DEFINE(ENABLE_GC_CHECKING, 1,
384 [Define if you want the garbage collector to do object poisoning and
385 other memory allocation checks. This is quite expensive.])
387 if test x$ac_gc_always_collect != x ; then
388 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
389 [Define if you want the garbage collector to operate in maximally
390 paranoid mode, validating the entire heap and collecting garbage at
391 every opportunity. This is extremely expensive.])
393 if test x$ac_fold_checking != x ; then
394 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
395 [Define if you want fold checked that it never destructs its argument.
396 This is quite expensive.])
398 valgrind_path_defines=
400 if test x$ac_checking_valgrind != x ; then
401 # It is certainly possible that there's valgrind but no valgrind.h.
402 # GCC relies on making annotations so we must have both.
403 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
405 [#include <memcheck.h>
406 #ifndef VALGRIND_DISCARD
407 #error VALGRIND_DISCARD not defined
409 [gcc_cv_header_memcheck_h=yes],
410 gcc_cv_header_memcheck_h=no)
411 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
412 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
413 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
414 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
415 if test "x$valgrind_path" = "x" || (test $have_valgrind_h = no && test $gcc_cv_header_memcheck_h = no); then
416 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h/memcheck.h])
418 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
419 valgrind_command="$valgrind_path -q"
420 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
421 [Define if you want to run subprograms and generated programs
422 through valgrind (a memory checker). This is extremely expensive.])
423 if test $gcc_cv_header_memcheck_h = yes; then
424 AC_DEFINE(HAVE_MEMCHECK_H, 1,
425 [Define if valgrind's memcheck.h header is installed.])
428 AC_SUBST(valgrind_path_defines)
429 AC_SUBST(valgrind_command)
431 # Enable code coverage collection
432 AC_ARG_ENABLE(coverage,
433 [ --enable-coverage[=LEVEL]
434 enable compiler\'s code coverage collection.
435 Use to measure compiler performance and locate
436 unused parts of the compiler. With LEVEL, specify
437 optimization. Values are opt, noopt,
439 [case "${enableval}" in
441 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
444 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
447 AC_MSG_ERROR(unknown coverage setting $enableval)
451 AC_SUBST(coverage_flags)
453 # -------------------------------
454 # Miscenalleous configure options
455 # -------------------------------
459 [ --with-stabs arrange to use stabs instead of host debug format],
463 # Determine whether or not multilibs are enabled.
464 AC_ARG_ENABLE(multilib,
465 [ --enable-multilib enable library support for multiple ABIs],
466 [], [enable_multilib=yes])
467 AC_SUBST(enable_multilib)
469 # Enable __cxa_atexit for C++.
470 AC_ARG_ENABLE(__cxa_atexit,
471 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
475 # Pass with no value to take the default
476 # Pass with a value to specify a thread package
477 AC_ARG_ENABLE(threads,
478 [ --enable-threads enable thread usage for target GCC
479 --enable-threads=LIB use LIB thread package for target GCC],,
481 # Save in case it gets overwritten in config.gcc
482 enable_threads_flag=$enable_threads
484 AC_ARG_ENABLE(objc-gc,
485 [ --enable-objc-gc enable the use of Boehm's garbage collector with
486 the GNU Objective-C runtime],
487 if test x$enable_objc_gc = xno; then
495 [ --with-dwarf2 force the default debug format to be DWARF 2],
496 dwarf2="$with_dwarf2",
499 AC_ARG_ENABLE(shared,
500 [ --disable-shared don't provide a shared libgcc],
502 case $enable_shared in
506 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
507 for pkg in $enableval; do
508 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
515 ], [enable_shared=yes])
516 AC_SUBST(enable_shared)
519 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
521 case ${with_sysroot} in
522 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
523 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
526 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
527 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
529 if test "x$exec_prefix" = xNONE; then
530 if test "x$prefix" = xNONE; then
531 test_prefix=/usr/local
536 test_prefix=$exec_prefix
538 case ${TARGET_SYSTEM_ROOT} in
539 "${test_prefix}"|"${test_prefix}/"*|\
540 '${exec_prefix}'|'${exec_prefix}/'*)
541 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
542 TARGET_SYSTEM_ROOT_DEFINE="$t"
547 TARGET_SYSTEM_ROOT_DEFINE=
548 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
550 AC_SUBST(TARGET_SYSTEM_ROOT)
551 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
552 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
554 # Build with intermodule optimisations
555 AC_ARG_ENABLE(intermodule,
556 [ --enable-intermodule build the compiler in one step],
557 [case ${enable_intermodule} in
558 yes) onestep="-onestep";;
564 # -------------------------
565 # Checks for other programs
566 # -------------------------
570 # Find some useful tools
577 # See if cmp has --ignore-initial.
578 gcc_AC_PROG_CMP_IGNORE_INITIAL
580 # See if we have the mktemp command.
581 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
583 # Do we have a single-tree copy of texinfo?
584 if test -f $srcdir/../texinfo/Makefile.in; then
585 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
586 gcc_cv_prog_makeinfo_modern=yes
587 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
589 # See if makeinfo has been installed and is modern enough
590 # that we can use it.
591 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
592 [GNU texinfo.* \([0-9][0-9.]*\)],
596 if test $gcc_cv_prog_makeinfo_modern = no; then
598 *** Makeinfo is missing or too old.
599 *** Info documentation will not be built.])
602 BUILD_INFO=info AC_SUBST(BUILD_INFO)
605 # Is pod2man recent enough to regenerate manpages?
606 AC_MSG_CHECKING([for recent Pod::Man])
607 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
609 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
616 dnl Don't use AC_PROG_LEX; we insist on flex.
617 dnl LEXLIB is not useful in gcc.
618 if test -f $srcdir/../flex/skel.c; then
619 FLEX='$(objdir)/../flex/flex'
621 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
625 # The -L switch is so bison can find its skeleton file.
626 if test -f $srcdir/../bison/bison.simple; then
627 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
629 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
632 # --------------------
633 # Checks for C headers
634 # --------------------
636 AC_MSG_CHECKING(for GNU C library)
637 AC_CACHE_VAL(gcc_cv_glibc,
639 [#include <features.h>],[
640 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
641 #error Not a GNU C library system
645 AC_MSG_RESULT($gcc_cv_glibc)
646 if test $gcc_cv_glibc = yes; then
647 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
652 gcc_AC_HEADER_STDBOOL
655 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
656 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
657 sys/resource.h sys/param.h sys/times.h sys/stat.h \
658 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
660 # Check for thread headers.
661 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
662 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
664 # These tests can't be done till we know if we have limits.h.
672 # Stage specific cflags for build.
678 stage1_cflags="-Wa,-J"
684 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
685 # sources; use -no-cpp-precomp to get to GNU cpp.
686 # Apple's GCC has bugs in designated initializer handling, so disable
688 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
691 AC_SUBST(stage1_cflags)
693 # These libraries may be used by collect2.
694 # We may need a special search path to get them linked.
695 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
697 for libs in '' -lld -lmld \
698 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
699 '-L/usr/lib/cmplrs/cc3.11 -lmld'
702 AC_TRY_LINK_FUNC(ldopen,
703 [gcc_cv_collect2_libs="$libs"; break])
706 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
707 case $gcc_cv_collect2_libs in
709 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
711 AC_SUBST(COLLECT2_LIBS)
713 # When building Ada code on Alpha, we need exc_resume which is usually in
714 # -lexc. So test for it.
717 AC_SEARCH_LIBS(exc_resume, exc)
720 AC_SUBST(GNAT_LIBEXC)
722 # Some systems put ldexp and frexp in libm instead of libc; assume
723 # they're both in the same place. jcf-dump needs them.
726 AC_SEARCH_LIBS(ldexp, m)
731 # Use <inttypes.h> only if it exists,
732 # doesn't clash with <sys/types.h>, and declares intmax_t.
733 AC_MSG_CHECKING(for inttypes.h)
734 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
736 [#include <sys/types.h>
737 #include <inttypes.h>],
739 [gcc_cv_header_inttypes_h=yes],
740 gcc_cv_header_inttypes_h=no)])
741 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
742 if test $gcc_cv_header_inttypes_h = yes; then
743 AC_DEFINE(HAVE_INTTYPES_H, 1,
744 [Define if you have a working <inttypes.h> header file.])
747 dnl Disabled until we have a complete test for buggy enum bitfields.
748 dnl gcc_AC_C_ENUM_BF_UNSIGNED
750 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
751 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
752 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
753 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
756 if test x$ac_cv_func_mbstowcs = xyes; then
757 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
758 [ AC_TRY_RUN([#include <stdlib.h>
764 gcc_cv_func_mbstowcs_works=yes,
765 gcc_cv_func_mbstowcs_works=no,
766 gcc_cv_func_mbstowcs_works=yes)])
767 if test x$gcc_cv_func_mbstowcs_works = xyes; then
768 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
769 [Define this macro if mbstowcs does not crash when its
770 first argument is NULL.])
774 gcc_AC_CHECK_TYPE(ssize_t, int)
776 # Try to determine the array type of the second argument of getgroups
777 # for the target system (int or gid_t).
779 if test "${target}" = "${build}"; then
780 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
783 # This condition may need some tweaking. It should include all
784 # targets where the array type of the second argument of getgroups
785 # is int and the type of gid_t is not equivalent to int.
786 *-*-sunos* | *-*-ultrix*)
787 TARGET_GETGROUPS_T=int
790 TARGET_GETGROUPS_T=gid_t
794 AC_SUBST(TARGET_GETGROUPS_T)
796 gcc_AC_FUNC_PRINTF_PTR
797 gcc_AC_FUNC_MMAP_BLACKLIST
801 # Under VMS, vfork works very differently than on Unix. The standard test
802 # won't work, and it isn't easily adaptable. It makes more sense to
804 ac_cv_func_vfork_works=yes
810 # Until we have in-tree GNU iconv:
812 AC_SUBST(LIBICONV_DEP)
816 # We will need to find libiberty.h and ansidecl.h
817 saved_CFLAGS="$CFLAGS"
818 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
819 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
820 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
821 fprintf_unlocked strstr errno vasprintf \
822 malloc realloc calloc free basename getopt clock, , ,[
823 #include "ansidecl.h"
824 #include "system.h"])
826 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
827 #include "ansidecl.h"
829 #ifdef HAVE_SYS_RESOURCE_H
830 #include <sys/resource.h>
835 #include "ansidecl.h"
837 #ifdef HAVE_SYS_RESOURCE_H
838 #include <sys/resource.h>
840 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
841 [Define to \`long' if <sys/resource.h> doesn't define.])])
843 gcc_AC_CHECK_DECLS(ldgetname, , ,[
844 #include "ansidecl.h"
851 gcc_AC_CHECK_DECLS(times, , ,[
852 #include "ansidecl.h"
854 #ifdef HAVE_SYS_TIMES_H
855 #include <sys/times.h>
859 # More time-related stuff.
860 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
862 #include "ansidecl.h"
864 #ifdef HAVE_SYS_TIMES_H
865 #include <sys/times.h>
867 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
868 if test $ac_cv_struct_tms = yes; then
869 AC_DEFINE(HAVE_STRUCT_TMS, 1,
870 [Define if <sys/times.h> defines struct tms.])
873 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
874 # revisit after autoconf 2.50.
875 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
877 #include "ansidecl.h"
879 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
880 if test $gcc_cv_type_clock_t = yes; then
881 AC_DEFINE(HAVE_CLOCK_T, 1,
882 [Define if <time.h> defines clock_t.])
885 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
887 #include "ansidecl.h"
890 [if ((uchar *)0) return 0;
891 if (sizeof(uchar)) return 0;],
892 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
893 if test $ac_cv_type_uchar = yes; then
894 AC_DEFINE(HAVE_UCHAR, 1,
895 [Define if <sys/types.h> defines \`uchar'.])
898 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
899 CFLAGS="$saved_CFLAGS"
901 gcc_AC_INITFINI_ARRAY
903 # mkdir takes a single argument on some systems.
904 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
912 # With Setjmp/Longjmp based exception handling.
913 AC_ARG_ENABLE(sjlj-exceptions,
914 [ --enable-sjlj-exceptions
915 arrange to use setjmp/longjmp exception handling],
916 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
917 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
918 [Define 0/1 to force the choice for exception handling model.])])
920 if test x$host = x$target; then
921 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
923 use_libunwind_default=no
925 # Use libunwind based exception handling.
926 AC_ARG_ENABLE(libunwind-exceptions,
927 [ --enable-libunwind-exceptions force use libunwind for exceptions],
928 use_libunwind_exceptions=$enableval,
929 use_libunwind_exceptions=$use_libunwind_default)
930 if test x"$use_libunwind_exceptions" = xyes; then
931 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
932 [Define if gcc should use -lunwind.])
935 # --------------------------------------------------------
936 # Build, host, and target specific configuration fragments
937 # --------------------------------------------------------
939 # Collect build-machine-specific information.
940 . ${srcdir}/config.build
942 # Collect host-machine-specific information.
943 . ${srcdir}/config.host
947 # Collect target-machine-specific information.
948 . ${srcdir}/config.gcc
950 extra_objs="${host_extra_objs} ${extra_objs}"
952 # Default the target-machine variables that were not explicitly set.
953 if test x"$tm_file" = x
954 then tm_file=$cpu_type/$cpu_type.h; fi
956 if test x"$extra_headers" = x
957 then extra_headers=; fi
959 if test x$md_file = x
960 then md_file=$cpu_type/$cpu_type.md; fi
962 if test x$out_file = x
963 then out_file=$cpu_type/$cpu_type.c; fi
965 if test x"$tmake_file" = x
966 then tmake_file=$cpu_type/t-$cpu_type
969 if test x"$dwarf2" = xyes
970 then tm_file="$tm_file tm-dwarf2.h"
973 # Say what files are being used for the output code and MD file.
974 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
975 echo "Using \`$srcdir/config/$md_file' as machine description file."
977 # If any of the xm_file variables contain nonexistent files, warn
978 # about them and drop them.
981 for x in $build_xm_file; do
982 if test -f $srcdir/config/$x
984 else AC_MSG_WARN($srcdir/config/$x does not exist.)
990 for x in $host_xm_file; do
991 if test -f $srcdir/config/$x
993 else AC_MSG_WARN($srcdir/config/$x does not exist.)
999 for x in $xm_file; do
1000 if test -f $srcdir/config/$x
1002 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1008 for f in $tm_file; do
1011 if test $count = ax; then
1012 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1014 echo "Using the following target machine macro files:"
1015 for f in $tm_file; do
1016 echo " $srcdir/config/$f"
1020 if test x$need_64bit_hwint = xyes; then
1021 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1022 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1026 for f in $host_xm_file; do
1029 if test $count = a; then
1031 elif test $count = ax; then
1032 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1034 echo "Using the following host machine macro files:"
1035 for f in $host_xm_file; do
1036 echo " $srcdir/config/$f"
1039 echo "Using ${out_host_hook_obj} for host machine hooks."
1041 if test "$host_xm_file" != "$build_xm_file"; then
1043 for f in $build_xm_file; do
1046 if test $count = a; then
1048 elif test $count = ax; then
1049 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1051 echo "Using the following build machine macro files:"
1052 for f in $build_xm_file; do
1053 echo " $srcdir/config/$f"
1058 # Check if a valid thread package
1059 case ${enable_threads_flag} in
1062 target_thread_file='single'
1066 target_thread_file='single'
1068 aix | dce | gnat | irix | posix | rtems | \
1069 single | solaris | vxworks | win32 )
1070 target_thread_file=${enable_threads_flag}
1073 echo "${enable_threads_flag} is an unknown thread package" 1>&2
1078 if test x${thread_file} = x; then
1079 # No thread file set by target-specific clauses in config.gcc,
1080 # so use file chosen by default logic above
1081 thread_file=${target_thread_file}
1084 if test x$enable___cxa_atexit = xyes || \
1085 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1086 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1087 [Define if you want to use __cxa_atexit, rather than atexit, to
1088 register C++ destructors for local statics and global objects.
1089 This is essential for fully standards-compliant handling of
1090 destructors, but requires __cxa_atexit in libc.])
1093 # Look for a file containing extra machine modes.
1094 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1095 extra_modes_file='$(srcdir)'/config/${extra_modes}
1096 AC_SUBST(extra_modes_file)
1097 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1098 [Define to the name of a file containing a list of extra machine modes
1099 for this architecture.])
1100 AC_DEFINE(EXTRA_CC_MODES, 1,
1101 [Define if the target architecture needs extra machine modes to represent
1102 the results of comparisons.])
1105 # auto-host.h is the file containing items generated by autoconf and is
1106 # the first file included by config.h.
1107 # If host=build, it is correct to have bconfig include auto-host.h
1108 # as well. If host!=build, we are in error and need to do more
1109 # work to find out the build config parameters.
1110 if test x$host = x$build
1112 build_auto=auto-host.h
1115 # We create a subdir, then run autoconf in the subdir.
1116 # To prevent recursion we set host and build for the new
1117 # invocation of configure to the build for this invocation
1124 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1125 *) realsrcdir=../${srcdir};;
1127 saved_CFLAGS="${CFLAGS}"
1128 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1129 ${realsrcdir}/configure \
1130 --target=$target_alias --host=$build_alias --build=$build_alias
1131 CFLAGS="${saved_CFLAGS}"
1133 # We just finished tests for the build machine, so rename
1134 # the file auto-build.h in the gcc directory.
1135 mv auto-host.h ../auto-build.h
1138 build_auto=auto-build.h
1139 FORBUILD=../${build_subdir}
1143 tm_file="${tm_file} defaults.h"
1144 tm_p_file="${tm_p_file} tm-preds.h"
1145 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1146 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1147 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1148 # put this back in temporarily.
1149 xm_file="ansidecl.h ${xm_file}"
1155 # Get the version trigger filename from the toplevel
1156 if test "${with_gcc_version_trigger+set}" = set; then
1157 gcc_version_trigger=$with_gcc_version_trigger
1159 gcc_version_trigger=${srcdir}/version.c
1162 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1163 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1165 # Compile in configure arguments.
1166 if test -f configargs.h ; then
1167 # Being re-configured.
1168 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1169 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1171 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1174 # Double all backslashes and backslash all quotes to turn
1175 # gcc_config_arguments into a C string.
1176 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1177 $gcc_config_arguments
1179 gcc_config_arguments_str=`cat conftest.out`
1182 cat > configargs.h <<EOF
1183 /* Generated automatically. */
1184 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1185 static const char thread_model[] = "$thread_file";
1187 static const struct {
1188 const char *name, *value;
1189 } configure_default_options[] = $configure_default_options;
1193 # Internationalization
1195 VERSION="$gcc_version"
1199 ZW_GNU_GETTEXT_SISTER_DIR
1201 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1202 # -liconv on the link line twice.
1203 case "$LIBINTL" in *$LIBICONV*)
1207 # Windows32 Registry support for specifying GCC installation paths.
1208 AC_ARG_ENABLE(win32-registry,
1209 [ --disable-win32-registry
1210 disable lookup of installation paths in the
1211 Registry on Windows hosts
1212 --enable-win32-registry enable registry lookup (default)
1213 --enable-win32-registry=KEY
1214 use KEY instead of GCC version as the last portion
1215 of the registry key],,)
1217 win32 | pe | cygwin* | mingw32* | uwin*)
1218 AC_MSG_CHECKING(whether windows registry support is requested)
1219 if test "x$enable_win32_registry" != xno; then
1220 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1221 [Define to 1 if installation paths should be looked up in Windows32
1222 Registry. Ignored on non windows32 hosts.])
1224 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1229 # Check if user specified a different registry key.
1230 case "x${enable_win32_registry}" in
1233 gcc_cv_win32_registry_key="$VERSION"
1236 # no registry lookup.
1237 gcc_cv_win32_registry_key=''
1240 # user-specified key.
1241 gcc_cv_win32_registry_key="$enable_win32_registry"
1245 if test "x$enable_win32_registry" != xno; then
1246 AC_MSG_CHECKING(registry key on windows hosts)
1247 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1248 [Define to be the last portion of registry key on windows hosts.])
1249 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1254 # Get an absolute path to the GCC top-level source directory
1255 holddir=`${PWDCMD-pwd}`
1257 topdir=`${PWDCMD-pwd}`
1260 # Conditionalize the makefile for this host machine.
1262 for f in ${host_xmake_file}
1264 if test -f ${srcdir}/config/$f
1266 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1270 # Conditionalize the makefile for this target machine.
1272 for f in ${tmake_file}
1274 if test -f ${srcdir}/config/$f
1276 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1279 tmake_file="${tmake_file_}"
1281 symbolic_link='ln -s'
1283 # If the host doesn't support symlinks, modify CC in
1284 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1285 # Otherwise, we can use "CC=$(CC)".
1287 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1289 cc_set_by_configure="\$(CC)"
1290 quoted_cc_set_by_configure="\$(CC)"
1291 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1292 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1295 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1297 symbolic_link="cp -p"
1301 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1302 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1303 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1304 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1308 out_object_file=`basename $out_file .c`.o
1312 for f in $tm_file; do
1315 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1316 tm_include_list="${tm_include_list} $f"
1319 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1320 tm_include_list="${tm_include_list} config/$f"
1327 for f in $tm_p_file; do
1330 tm_p_file_list="${tm_p_file_list} $f"
1331 tm_p_include_list="${tm_p_include_list} $f"
1334 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1335 tm_p_include_list="${tm_p_include_list} config/$f"
1341 for f in $xm_file; do
1344 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1345 xm_include_list="${xm_include_list} $f"
1348 xm_file_list="${xm_file_list} $f"
1349 xm_include_list="${xm_include_list} $f"
1352 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1353 xm_include_list="${xm_include_list} config/$f"
1359 host_xm_include_list=
1360 for f in $host_xm_file; do
1363 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1364 host_xm_include_list="${host_xm_include_list} $f"
1367 host_xm_file_list="${host_xm_file_list} $f"
1368 host_xm_include_list="${host_xm_include_list} $f"
1371 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1372 host_xm_include_list="${host_xm_include_list} config/$f"
1378 for f in $build_xm_file; do
1381 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1382 build_xm_include_list="${build_xm_include_list} $f"
1384 auto-build.h | auto-host.h )
1385 build_xm_file_list="${build_xm_file_list} $f"
1386 build_xm_include_list="${build_xm_include_list} $f"
1389 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1390 build_xm_include_list="${build_xm_include_list} config/$f"
1395 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1396 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1397 CROSS= AC_SUBST(CROSS)
1398 ALL=all.internal AC_SUBST(ALL)
1399 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1400 if test x$host != x$target
1402 CROSS="-DCROSS_COMPILE"
1404 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1405 case "$host","$target" in
1406 # Darwin crosses can use the host system's libraries and headers,
1407 # because of the fat library support. Of course, it must be the
1408 # same version of Darwin on both sides. Allow the user to
1409 # just say --target=foo-darwin without a version number to mean
1410 # "the version on this system".
1411 *-*-darwin*,*-*-darwin*)
1412 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1413 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1414 if test $hostos = $targetos -o $targetos = darwin ; then
1416 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1421 i?86-*-*,x86_64-*-* \
1422 | powerpc*-*-*,powerpc64*-*-*)
1423 CROSS="$CROSS -DNATIVE_CROSS" ;;
1425 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1426 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1427 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1430 # If this is a cross-compiler that does not
1431 # have its own set of headers then define
1434 # If this is using newlib, without having the headers available now,
1435 # then define inhibit_libc in LIBGCC2_CFLAGS.
1436 # This prevents libgcc2 from containing any code which requires libc
1439 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1440 test x$with_newlib = xyes ; } &&
1441 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1442 inhibit_libc=-Dinhibit_libc
1444 AC_SUBST(inhibit_libc)
1446 # When building gcc with a cross-compiler, we need to adjust things so
1447 # that the generator programs are still built with the native compiler.
1448 # Also, we cannot run fixincludes or fix-header.
1450 # These are the normal (build=host) settings:
1451 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1452 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1453 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1454 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1456 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1458 # Possibly disable fixproto, on a per-target basis.
1459 case ${use_fixproto} in
1464 STMP_FIXPROTO=stmp-fixproto
1467 AC_SUBST(STMP_FIXPROTO)
1469 # And these apply if build != host, or we are generating coverage data
1470 if test x$build != x$host || test "x$coverage_flags" != x
1473 BUILD_PREFIX_1=build-
1474 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1476 if test "x$TARGET_SYSTEM_ROOT" = x; then
1482 # Expand extra_headers to include complete path.
1483 # This substitutes for lots of t-* files.
1485 if test "x$extra_headers" = x
1488 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1489 for file in $extra_headers;
1491 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1495 # Add a definition of USE_COLLECT2 if system wants one.
1496 case $use_collect2 in
1497 no) use_collect2= ;;
1500 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1501 xm_defines="${xm_defines} USE_COLLECT2"
1505 # Identify the assembler which will work hand-in-glove with the newly
1506 # built GCC, so that we can examine its features. This is the assembler
1507 # which will be driven by the driver program.
1509 # If build != host, and we aren't building gas in-tree, we identify a
1510 # build->target assembler and hope that it will have the same features
1511 # as the host->target assembler we'll be using.
1512 AC_MSG_CHECKING(what assembler to use)
1515 gcc_cv_gas_major_version=
1516 gcc_cv_gas_minor_version=
1517 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1518 if test -x "$DEFAULT_ASSEMBLER"; then
1519 gcc_cv_as="$DEFAULT_ASSEMBLER"
1520 elif test -x "$AS"; then
1522 elif test -x as$host_exeext; then
1523 # Build using assembler in the current directory.
1524 gcc_cv_as=./as$host_exeext
1525 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1526 && test -f ../gas/Makefile; then
1527 # Single tree build which includes gas.
1529 _gcc_COMPUTE_GAS_VERSION
1530 rm -f as$host_exeext
1531 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1532 in_tree_gas_is_elf=no
1533 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1534 || (grep 'obj_format = multi' ../gas/Makefile \
1535 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1537 in_tree_gas_is_elf=yes
1541 if test "x$gcc_cv_as" = x; then
1542 # Search the same directories that the installed compiler will
1543 # search. Else we may find the wrong assembler and lose. If we
1544 # do not find a suitable assembler binary, then try the user's
1547 # Also note we have to check MD_EXEC_PREFIX before checking the
1548 # user's path. Unfortunately, there is no good way to get at the
1549 # value of MD_EXEC_PREFIX here. So we do a brute force search
1550 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1551 # to be fixed as part of the make/configure rewrite too.
1553 if test "x$exec_prefix" = xNONE; then
1554 if test "x$prefix" = xNONE; then
1555 test_prefix=/usr/local
1560 test_prefix=$exec_prefix
1563 # If the loop below does not find an assembler, then use whatever
1564 # one we can find in the users's path.
1566 if test "x$program_prefix" != xNONE; then
1567 gcc_cv_as=${program_prefix}as$host_exeext
1569 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1572 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1573 $test_prefix/lib/gcc-lib/$target_alias \
1574 /usr/lib/gcc/$target_alias/$gcc_version \
1575 /usr/lib/gcc/$target_alias \
1576 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1577 $test_prefix/$target_alias/bin"
1579 if test x$host = x$target; then
1580 test_dirs="$test_dirs \
1585 /bsd43/usr/lib/cmplrs/cc \
1586 /usr/cross64/usr/bin \
1587 /usr/lib/cmplrs/cc \
1588 /sysv/usr/lib/cmplrs/cc \
1589 /svr4/usr/lib/cmplrs/cc \
1593 for dir in $test_dirs; do
1594 if test -x $dir/as$host_exeext; then
1595 gcc_cv_as=$dir/as$host_exeext
1600 case $in_tree_gas in
1602 AC_MSG_RESULT("newly built gas")
1605 AC_MSG_RESULT($gcc_cv_as)
1609 # Identify the linker which will work hand-in-glove with the newly
1610 # built GCC, so that we can examine its features. This is the linker
1611 # which will be driven by the driver program.
1613 # If build != host, and we aren't building gas in-tree, we identify a
1614 # build->target linker and hope that it will have the same features
1615 # as the host->target linker we'll be using.
1616 AC_MSG_CHECKING(what linker to use)
1619 gcc_cv_gld_major_version=
1620 gcc_cv_gld_minor_version=
1621 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1622 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1623 if test -x "$DEFAULT_LINKER"; then
1624 gcc_cv_ld="$DEFAULT_LINKER"
1625 elif test -x "$LD"; then
1627 elif test -x collect-ld$host_exeext; then
1628 # Build using linker in the current directory.
1629 gcc_cv_ld=./collect-ld$host_exeext
1630 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1631 && test -f ../ld/Makefile; then
1632 # Single tree build which includes ld.
1634 in_tree_ld_is_elf=no
1635 if (grep 'EMUL = .*elf' ../ld/Makefile \
1636 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1637 in_tree_ld_is_elf=yes
1639 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
1642 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1644 if test x$gcc_cv_gld_version != x; then
1649 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1650 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1652 rm -f collect-ld$host_exeext
1653 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1657 if test "x$gcc_cv_ld" = x; then
1658 # Search the same directories that the installed compiler will
1659 # search. Else we may find the wrong linker and lose. If we
1660 # do not find a suitable linker binary, then try the user's
1663 # Also note we have to check MD_EXEC_PREFIX before checking the
1664 # user's path. Unfortunately, there is no good way to get at the
1665 # value of MD_EXEC_PREFIX here. So we do a brute force search
1666 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1667 # to be fixed as part of the make/configure rewrite too.
1669 if test "x$exec_prefix" = xNONE; then
1670 if test "x$prefix" = xNONE; then
1671 test_prefix=/usr/local
1676 test_prefix=$exec_prefix
1679 # If the loop below does not find an linker, then use whatever
1680 # one we can find in the users's path.
1682 if test "x$program_prefix" != xNONE; then
1683 gcc_cv_ld=${program_prefix}ld$host_exeext
1685 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1688 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1689 $test_prefix/lib/gcc-lib/$target_alias \
1690 /usr/lib/gcc/$target_alias/$gcc_version \
1691 /usr/lib/gcc/$target_alias \
1692 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1693 $test_prefix/$target_alias/bin"
1695 if test x$host = x$target; then
1696 test_dirs="$test_dirs \
1701 /bsd43/usr/lib/cmplrs/cc \
1702 /usr/cross64/usr/bin \
1703 /usr/lib/cmplrs/cc \
1704 /sysv/usr/lib/cmplrs/cc \
1705 /svr4/usr/lib/cmplrs/cc \
1709 for dir in $test_dirs; do
1710 if test -x $dir/ld$host_exeext; then
1711 gcc_cv_ld=$dir/ld$host_exeext
1718 AC_MSG_RESULT("newly built ld")
1721 AC_MSG_RESULT($gcc_cv_ld)
1725 # Figure out what nm we will be using.
1726 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1727 AC_MSG_CHECKING(what nm to use)
1729 if test -x nm$host_exeext; then
1730 gcc_cv_nm=./nm$host_exeext
1731 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1732 && test -f ../binutils/Makefile; then
1733 # Single tree build which includes binutils.
1735 gcc_cv_nm=./nm$host_exeext
1736 rm -f nm$host_exeext
1737 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1738 elif test "x$program_prefix" != xNONE; then
1739 gcc_cv_nm=${program_prefix}nm$host_exeext
1741 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1744 yes) AC_MSG_RESULT("newly built nm") ;;
1745 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1748 # Figure out what objdump we will be using.
1749 AC_MSG_CHECKING(what objdump to use)
1751 if test -x objdump$host_exeext; then
1752 gcc_cv_objdump=./objdump$host_exeext
1753 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1754 && test -f ../binutils/Makefile; then
1755 # Single tree build which includes binutils.
1757 gcc_cv_objdump=./objdump$host_exeext
1758 rm -f objdump$host_exeext
1759 $symbolic_link ../binutils/objdump$host_exeext \
1760 objdump$host_exeext 2>/dev/null
1761 elif test "x$program_prefix" != xNONE; then
1762 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1764 gcc_cv_objdump=`echo objdump | \
1765 sed ${program_transform_name}`$host_exeext
1767 case $in_tree_objdump in
1768 yes) AC_MSG_RESULT("newly built objdump") ;;
1769 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1772 # Figure out what assembler alignment features are present.
1773 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1777 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1778 [Define if your assembler supports .balign and .p2align.])])
1780 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1783 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1784 [Define if your assembler supports specifying the maximum number
1785 of bytes to skip when using the GAS .p2align command.])])
1787 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1789 [conftest_label1: .word 0
1791 conftest_label2: .word 0
1793 [if test x$gcc_cv_nm != x; then
1794 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1795 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1796 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1798 else gcc_cv_as_subsection_m1=yes
1800 rm -f conftest.nm1 conftest.nm2
1802 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1803 [Define if your assembler supports .subsection and .subsection -1 starts
1804 emitting at the beginning of your section.])])
1806 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1809 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1811 # .hidden needs to be supported in both the assembler and the linker,
1812 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1813 # This is irritatingly difficult to feature test for; we have to check the
1814 # date string after the version number. If we've got an in-tree
1815 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1817 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1818 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1823 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1824 [if test $in_tree_ld = yes ; then
1826 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1827 && test $in_tree_ld_is_elf = yes; then
1828 gcc_cv_ld_hidden=yes
1831 gcc_cv_ld_hidden=yes
1832 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1833 if echo "$ld_ver" | grep GNU > /dev/null; then
1835 ld_vers=`echo $ld_ver | sed -n \
1836 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1837 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1838 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1839 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1840 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1841 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1842 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1843 if test 0"$ld_date" -lt 20020404; then
1844 if test -n "$ld_date"; then
1845 # If there was date string, but was earlier than 2002-04-04, fail
1847 elif test -z "$ld_vers"; then
1848 # If there was no date string nor ld version number, something is wrong
1851 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1852 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1853 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1854 test -z "$ld_vers_patch" && ld_vers_patch=0
1855 if test "$ld_vers_major" -lt 2; then
1857 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1858 gcc_cv_ld_hidden="no"
1859 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1866 # non-GNU linkers don't seem to support .hidden yet
1870 libgcc_visibility=no
1871 AC_SUBST(libgcc_visibility)
1872 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
1873 libgcc_visibility=yes
1874 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1875 [Define if your assembler and linker support .hidden.])
1878 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1879 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1887 [# GAS versions before 2.11 do not support uleb128,
1888 # despite appearing to.
1889 # ??? There exists an elf-specific test that will crash
1890 # the assembler. Perhaps it's better to figure out whether
1891 # arbitrary sections are supported and try the test.
1892 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
1893 if echo "$as_ver" | grep GNU > /dev/null; then
1895 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1896 as_major=`echo $as_ver | sed 's/\..*//'`
1897 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1899 if test $as_major -eq 2 && test $as_minor -lt 11
1901 else gcc_cv_as_leb128=yes
1904 [AC_DEFINE(HAVE_AS_LEB128, 1,
1905 [Define if your assembler supports .sleb128 and .uleb128.])])
1907 # GAS versions up to and including 2.11.0 may mis-optimize
1909 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
1917 .section .eh_frame,"aw",@progbits
1919 .4byte .LECIE1-.LSCIE1
1933 .4byte .LEFDE1-.LASFDE1
1935 .4byte .LASFDE1-__FRAME_BEGIN__
1943 [ cat > conftest.lit <<EOF
1944 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1945 0010 01000000 12000000 18000000 00000000 ................
1946 0020 08000000 04080000 0044 .........D
1948 cat > conftest.big <<EOF
1949 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1950 0010 00000001 00000012 00000018 00000000 ................
1951 0020 00000008 04000000 0844 .........D
1953 # If the assembler didn't choke, and we can objdump,
1954 # and we got the correct data, then succeed.
1955 if test x$gcc_cv_objdump != x \
1956 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1957 | tail -3 > conftest.got \
1958 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1959 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1961 gcc_cv_as_eh_frame=yes
1962 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
1963 gcc_cv_as_eh_frame=buggy
1965 # Uh oh, what do we do now?
1966 gcc_cv_as_eh_frame=no
1969 if test $gcc_cv_as_eh_frame = buggy; then
1970 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1971 [Define if your assembler mis-optimizes .eh_frame data.])
1974 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
1975 [elf,2,12,0], [--fatal-warnings],
1976 [.section .rodata.str, "aMS", @progbits, 1])
1977 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
1978 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
1979 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
1981 # Thread-local storage - the check is heavily parametrized.
1990 .section ".tdata","awT",@progbits
1993 ldq $27,__tls_get_addr($29) !literal!1
1994 lda $16,foo($29) !tlsgd!1
1995 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
1996 ldq $27,__tls_get_addr($29) !literal!2
1997 lda $16,foo($29) !tlsldm!2
1998 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
1999 ldq $1,foo($29) !gotdtprel
2000 ldah $2,foo($29) !dtprelhi
2001 lda $3,foo($2) !dtprello
2002 lda $4,foo($29) !dtprel
2003 ldq $1,foo($29) !gottprel
2004 ldah $2,foo($29) !tprelhi
2005 lda $3,foo($2) !tprello
2006 lda $4,foo($29) !tprel'
2012 .section ".tdata","awT",@progbits
2016 leal foo@TLSGD(,%ebx,1), %eax
2017 leal foo@TLSLDM(%ebx), %eax
2018 leal foo@DTPOFF(%eax), %edx
2019 movl foo@GOTTPOFF(%ebx), %eax
2020 subl foo@GOTTPOFF(%ebx), %eax
2021 addl foo@GOTNTPOFF(%ebx), %eax
2022 movl foo@INDNTPOFF, %eax
2023 movl $foo@TPOFF, %eax
2024 subl $foo@TPOFF, %eax
2025 leal foo@NTPOFF(%ecx), %eax'
2031 .section ".tdata","awT",@progbits
2035 leaq foo@TLSGD(%rip), %rdi
2036 leaq foo@TLSLD(%rip), %rdi
2037 leaq foo@DTPOFF(%rax), %rdx
2038 movq foo@GOTTPOFF(%rip), %rax
2039 movq $foo@TPOFF, %rax'
2045 .section ".tdata","awT",@progbits
2048 addl r16 = @ltoff(@dtpmod(foo#)), gp
2049 addl r17 = @ltoff(@dtprel(foo#)), gp
2050 addl r18 = @ltoff(@tprel(foo#)), gp
2051 addl r19 = @dtprel(foo#), gp
2052 adds r21 = @dtprel(foo#), r13
2053 movl r23 = @dtprel(foo#)
2054 addl r20 = @tprel(foo#), gp
2055 adds r22 = @tprel(foo#), r13
2056 movl r24 = @tprel(foo#)'
2062 .section ".tdata","awT",@progbits
2070 addi 3,31,ld0@got@tlsgd
2072 addi 3,31,x1@got@tlsld
2075 addis 9,3,x2@dtprel@ha
2076 addi 9,9,x2@dtprel@l
2077 lwz 9,x3@got@tprel(31)
2080 addis 9,2,x2@tprel@ha
2081 addi 9,9,x2@tprel@l'
2088 .section ".tdata","awT",@progbits
2096 addi 3,2,ld0@got@tlsgd
2102 addi 3,2,x1@got@tlsld
2108 addis 9,3,x2@dtprel@ha
2109 addi 9,9,x2@dtprel@l
2112 ld 9,x3@got@dtprel(2)
2122 .section ".tdata","awT",@progbits
2131 l %r1,foo@GOTNTPOFF(%r12)
2132 l %r1,0(%r1):tls_load:foo
2133 bas %r14,0(%r1,%r13):tls_gdcall:foo
2134 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2141 .section ".tdata","awT",@progbits
2149 lg %r1,foo@GOTNTPOFF(%r12)
2150 larl %r1,foo@INDNTPOFF
2151 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2152 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2155 tls_as_opt="-m64 -Aesame"
2157 sh-*-* | sh[34]-*-*)
2159 .section ".tdata","awT",@progbits
2172 .section ".tdata","awT",@progbits
2175 sethi %tgd_hi22(foo), %o0
2176 add %o0, %tgd_lo10(foo), %o1
2177 add %l7, %o1, %o0, %tgd_add(foo)
2178 call __tls_get_addr, %tgd_call(foo)
2179 sethi %tldm_hi22(foo), %l1
2180 add %l1, %tldm_lo10(foo), %l2
2181 add %l7, %l2, %o0, %tldm_add(foo)
2182 call __tls_get_addr, %tldm_call(foo)
2183 sethi %tldo_hix22(foo), %l3
2184 xor %l3, %tldo_lox10(foo), %l4
2185 add %o0, %l4, %l5, %tldo_add(foo)
2186 sethi %tie_hi22(foo), %o3
2187 add %o3, %tie_lo10(foo), %o3
2188 ld [%l7 + %o3], %o2, %tie_ld(foo)
2189 add %g7, %o2, %o4, %tie_add(foo)
2190 sethi %tle_hix22(foo), %l1
2191 xor %l1, %tle_lox10(foo), %o5
2192 ld [%g7 + %o5], %o1'
2199 if test -z "$tls_first_major"; then
2200 : # If we don't have a check, assume no support.
2202 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2203 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt --fatal-warnings],
2205 [AC_DEFINE(HAVE_AS_TLS, 1,
2206 [Define if your assembler supports thread-local storage.])])
2209 # Target-specific assembler checks.
2212 # All TARGET_ABI_OSF targets.
2213 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2214 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2215 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2218 extbl $3, $2, $3 !lituse_bytoff!1
2219 ldq $2, a($29) !literal!1
2220 ldq $4, b($29) !literal!2
2221 ldq_u $3, 0($2) !lituse_base!1
2222 ldq $27, f($29) !literal!5
2223 jsr $26, ($27), f !lituse_jsr!5
2224 ldah $29, 0($26) !gpdisp!3
2225 lda $0, c($29) !gprel
2226 ldah $1, d($29) !gprelhigh
2227 lda $1, d($1) !gprellow
2228 lda $29, 0($29) !gpdisp!3],,
2229 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2230 [Define if your assembler supports explicit relocations.])])
2234 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2235 [.register %g2, #scratch],,
2236 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2237 [Define if your assembler supports .register.])])
2239 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2241 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2242 [Define if your assembler supports -relax option.])])
2244 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2245 gcc_cv_as_sparc_ua_pcrel,,
2253 .uaword %r_disp32(foo)],
2254 [if test x$gcc_cv_ld != x \
2255 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2256 gcc_cv_as_sparc_ua_pcrel=yes
2259 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2260 [Define if your assembler and linker support unaligned PC relative relocs.])
2262 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2263 gcc_cv_as_sparc_ua_pcrel_hidden,,
2268 .uaword %r_disp32(foo)
2269 .byte 0x32, 0x33, 0x34
2274 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2275 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2276 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2277 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2278 if $gcc_cv_objdump -R conftest 2> /dev/null \
2279 | grep 'DISP32' > /dev/null 2>&1; then
2282 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2286 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2287 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2288 ]) # unaligned pcrel relocs
2290 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2291 gcc_cv_as_sparc_offsetable_lo10,,
2294 or %g1, %lo(ab) + 12, %g1
2295 or %g1, %lo(ab + 12), %g1],
2296 [if test x$gcc_cv_objdump != x \
2297 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2298 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2299 gcc_cv_as_offsetable_lo10=yes
2301 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2302 [Define if your assembler supports offsetable %lo().])])
2306 i[34567]86-*-* | x86_64-*-*)
2308 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2309 gcc_cv_as_ix86_filds_fists,
2310 [2,9,0],, [filds mem; fists mem],,
2311 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2312 [Define if your assembler uses the new HImode fild and fist notation.])])
2314 gcc_GAS_CHECK_FEATURE([cmov syntax],
2315 gcc_cv_as_ix86_cmov_sun_syntax,,,
2316 [cmovl.l %edx, %eax],,
2317 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2318 [Define if your assembler supports the Sun syntax for cmov.])])
2320 # This one is used unconditionally by i386.[ch]; it is to be defined
2321 # to 1 if the feature is present, 0 otherwise.
2322 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2323 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2329 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2330 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2331 [Define true if the assembler supports '.long foo@GOTOFF'.])
2335 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2336 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2338 addl r15 = @ltoffx(x#), gp
2340 ld8.mov r16 = [[r15]], x#],,
2341 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2342 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2348 *-*-aix) conftest_s=' .csect .text[PR]';;
2349 *) conftest_s=' .text';;
2351 conftest_s="$conftest_s
2354 gcc_GAS_CHECK_FEATURE([mfcr field support],
2355 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2357 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2358 [Define if your assembler supports mfcr field.])])
2362 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2363 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2364 [ lw $4,%gp_rel(foo)($4)],,
2365 [if test x$target_cpu_default = x
2366 then target_cpu_default=MASK_EXPLICIT_RELOCS
2367 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2372 # ??? Not all targets support dwarf2 debug_line, even within a version
2373 # of gas. Moreover, we need to emit a valid instruction to trigger any
2374 # info to the output file. So, as supported targets are added to gas 2.11,
2375 # add some instruction here to (also) show we expect this might work.
2376 # ??? Once 2.11 is released, probably need to add first known working
2377 # version to the per-target configury.
2379 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2380 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2381 | xstormy16*-*-* | cris-*-*)
2391 if test x"$insn" != x; then
2393 .file 1 \"conftest.s\"
2396 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2397 gcc_cv_as_dwarf2_debug_line,
2398 [elf,2,11,0],, [$conftest_s],
2399 [# ??? This fails with non-gnu grep. Maybe use objdump?
2400 if grep debug_line conftest.o > /dev/null 2>&1; then
2401 gcc_cv_as_dwarf2_debug_line=yes
2404 # The .debug_line file table must be in the exact order that
2405 # we specified the files, since these indices are also used
2406 # by DW_AT_decl_file. Approximate this test by testing if
2407 # the assembler bitches if the same index is assigned twice.
2408 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2409 gcc_cv_as_dwarf2_file_buggy,,,
2413 if test $gcc_cv_as_dwarf2_debug_line = yes \
2414 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2415 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2416 [Define if your assembler supports dwarf2 .file/.loc directives,
2417 and preserves file table indices exactly as given.])
2420 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2421 gcc_cv_as_gdwarf2_flag,
2422 [elf,2,11,0], [--gdwarf2], [$insn],,
2423 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2424 [Define if your assembler supports the --gdwarf2 option.])])
2426 gcc_GAS_CHECK_FEATURE([--gstabs option],
2427 gcc_cv_as_gstabs_flag,
2428 [elf,2,11,0], [--gstabs], [$insn],
2429 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2430 # and warns about it, but still exits successfully. So check for
2432 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2434 else gcc_cv_as_gstabs_flag=yes
2436 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2437 [Define if your assembler supports the --gstabs option.])])
2440 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2441 gcc_cv_ld_ro_rw_mix=unknown
2442 if test $in_tree_ld = yes ; then
2443 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2444 && test $in_tree_ld_is_elf = yes; then
2445 gcc_cv_ld_ro_rw_mix=read-write
2447 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2448 echo '.section myfoosect, "a"' > conftest1.s
2449 echo '.section myfoosect, "aw"' > conftest2.s
2450 echo '.byte 1' >> conftest2.s
2451 echo '.section myfoosect, "a"' > conftest3.s
2452 echo '.byte 0' >> conftest3.s
2453 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2454 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2455 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2456 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2457 conftest2.o conftest3.o > /dev/null 2>&1; then
2458 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2459 | sed -e '/myfoosect/!d' -e N`
2460 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2461 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2462 gcc_cv_ld_ro_rw_mix=read-only
2464 gcc_cv_ld_ro_rw_mix=read-write
2469 rm -f conftest.* conftest[123].*
2472 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2473 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2474 [Define if your linker links a mix of read-only
2475 and read-write sections into a read-write section.])
2477 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2479 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2480 gcc_cv_ld_eh_frame_hdr=no
2481 if test $in_tree_ld = yes ; then
2482 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2483 && test $in_tree_ld_is_elf = yes; then
2484 gcc_cv_ld_eh_frame_hdr=yes
2486 elif test x$gcc_cv_ld != x; then
2487 # Check if linker supports --eh-frame-hdr option
2488 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2489 gcc_cv_ld_eh_frame_hdr=yes
2492 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2493 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2494 [Define if your linker supports --eh-frame-hdr option.])
2496 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2498 AC_MSG_CHECKING(linker position independent executable support)
2500 if test $in_tree_ld = yes ; then
2501 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2502 && test $in_tree_ld_is_elf = yes; then
2505 elif test x$gcc_cv_ld != x; then
2506 # Check if linker supports -pie option
2507 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2511 if test x"$gcc_cv_ld_pie" = xyes; then
2512 AC_DEFINE(HAVE_LD_PIE, 1,
2513 [Define if your linker supports -pie option.])
2515 AC_MSG_RESULT($gcc_cv_ld_pie)
2517 # Miscellaneous target-specific checks.
2520 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2521 gcc_cv_mips_libgloss_startup=no
2522 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2523 if test "x$exec_prefix" = xNONE; then
2524 if test "x$prefix" = xNONE; then
2525 test_prefix=/usr/local
2530 test_prefix=$exec_prefix
2532 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2534 if grep '^STARTUP' $f > /dev/null 2>&1; then
2535 gcc_cv_mips_libgloss_startup=yes
2539 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2540 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2541 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2543 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2547 if test x$with_sysroot = x && test x$host = x$target \
2548 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2549 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2550 [Define to PREFIX/include if cpp should also search that directory.])
2553 # Figure out what language subdirectories are present.
2554 # Look if the user specified --enable-languages="..."; if not, use
2555 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2557 # NB: embedded tabs in this IF block -- do not untabify
2558 if test x"${enable_languages+set}" != xset; then
2559 if test x"${LANGUAGES+set}" = xset; then
2560 enable_languages="${LANGUAGES}"
2561 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2564 enable_languages=all
2567 if test x"${enable_languages}" = x \
2568 || test x"${enable_languages}" = xyes;
2570 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2573 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2575 # First scan to see if an enabled language requires some other language.
2576 # We assume that a given config-lang.in will list all the language
2577 # front ends it requires, even if some are required indirectly.
2578 for lang in ${srcdir}/*/config-lang.in
2581 # The odd quoting in the next line works around
2582 # an apparent bug in bash 1.12 on linux.
2584 ${srcdir}/[*]/config-lang.in)
2587 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2588 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2589 for other in $this_lang_requires
2591 case ,${enable_languages}, in
2597 enable_languages="$enable_languages,$other"
2606 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2609 for lang in ${srcdir}/*/config-lang.in
2612 # The odd quoting in the next line works around
2613 # an apparent bug in bash 1.12 on linux.
2615 ${srcdir}/[*]/config-lang.in) ;;
2617 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2618 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2619 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2620 if test "x$lang_alias" = x
2622 echo "$lang doesn't set \$language." 1>&2
2625 case ${build_by_default},${enable_languages}, in
2626 *,$lang_alias,*) add_this_lang=yes ;;
2627 no,*) add_this_lang=no ;;
2628 *,all,*) add_this_lang=yes ;;
2629 *) add_this_lang=no ;;
2631 found_languages="${found_languages} ${lang_alias}"
2632 if test x"${add_this_lang}" = xyes; then
2634 ${srcdir}/ada/config-lang.in)
2635 if test x$have_gnat = xyes ; then
2636 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2640 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2650 for expected_language in ${expected_languages} ..
2652 if test "${expected_language}" != ..; then
2653 missing_language="${expected_language}"
2654 if test "${expected_language}" = "c" \
2655 || test "${expected_language}" = "all"; then
2658 for found_language in ${found_languages} ..
2660 if test "${found_language}" != ..; then
2661 if test "${expected_language}" = "${found_language}"; then
2666 if test "x${missing_language}" != x; then
2667 missing_languages="${missing_languages} ${missing_language}"
2672 if test "x$missing_languages" != x; then
2674 The following requested languages were not found:${missing_languages}
2675 The following languages were available: c${found_languages}])
2678 # Make gthr-default.h if we have a thread file.
2680 if test $thread_file != single; then
2681 rm -f gthr-default.h
2682 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2683 gthread_flags=-DHAVE_GTHR_DEFAULT
2685 AC_SUBST(gthread_flags)
2687 # Find out what GC implementation we want, or may, use.
2689 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2696 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2701 echo "Using $GGC for garbage collection."
2703 # Use the system's zlib library.
2705 zlibinc="-I\$(srcdir)/../zlib"
2706 AC_ARG_WITH(system-zlib,
2707 [ --with-system-zlib use installed libz],
2714 dnl Very limited version of automake's enable-maintainer-mode
2716 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2717 dnl maintainer-mode is disabled by default
2718 AC_ARG_ENABLE(maintainer-mode,
2719 [ --enable-maintainer-mode
2720 enable make rules and dependencies not useful
2721 (and sometimes confusing) to the casual installer],
2722 maintainer_mode=$enableval,
2725 AC_MSG_RESULT($maintainer_mode)
2727 if test "$maintainer_mode" = "yes"; then
2734 # Make empty files to contain the specs and options for each language.
2735 # Then add #include lines to for a compiler that has specs and/or options.
2740 for subdir in . $subdirs
2742 if test -f $srcdir/$subdir/lang.opt; then
2743 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2745 if test -f $srcdir/$subdir/lang-specs.h; then
2746 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2748 if test -f $srcdir/$subdir/$subdir-tree.def; then
2749 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2753 # These (without "all_") are set in each config-lang.in.
2754 # `language' must be a single word so is spelled singularly.
2759 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2760 # List of language makefile fragments.
2762 # List of language subdirectory makefiles. Deprecated.
2764 # Files for gengtype
2765 all_gtfiles="$target_gtfiles"
2766 # Files for gengtype with language
2767 all_gtfiles_files_langs=
2768 all_gtfiles_files_files=
2770 # Add the language fragments.
2771 # Languages are added via two mechanisms. Some information must be
2772 # recorded in makefile variables, these are defined in config-lang.in.
2773 # We accumulate them and plug them into the main Makefile.
2774 # The other mechanism is a set of hooks for each of the main targets
2775 # like `clean', `install', etc.
2777 language_hooks="Make-hooks"
2787 . ${srcdir}/$s/config-lang.in
2788 if test "x$language" = x
2790 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2793 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2794 if test -f ${srcdir}/$s/Makefile.in
2795 then all_lang_makefiles="$s/Makefile"
2797 all_languages="$all_languages $language"
2798 if test "x$boot_language" = xyes
2800 all_boot_languages="$all_boot_languages $language"
2802 all_compilers="$all_compilers $compilers"
2803 all_stagestuff="$all_stagestuff $stagestuff"
2804 all_outputs="$all_outputs $outputs"
2805 all_gtfiles="$all_gtfiles $gtfiles"
2808 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2809 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2813 # Pick up gtfiles for c
2816 . ${srcdir}/c-config-lang.in
2817 all_gtfiles="$all_gtfiles $gtfiles"
2820 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2821 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2825 for language in $all_languages
2827 check_languages="$check_languages check-$language"
2830 # We link each language in with a set of hooks, reached indirectly via
2835 target_list="all.build all.cross start.encap rest.encap tags \
2836 install-normal install-common install-info install-man \
2838 mostlyclean clean distclean extraclean maintainer-clean \
2839 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2840 for t in $target_list
2843 for lang in $all_languages
2847 echo "lang.$t: $x" >> Make-hooks
2852 echo "dir ." > .gdbinit
2853 echo "dir ${srcdir}" >> .gdbinit
2854 if test x$gdb_needs_out_file_path = xyes
2856 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2858 if test "x$subdirs" != x; then
2861 echo "dir ${srcdir}/$s" >> .gdbinit
2864 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2866 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2867 # absolute path for gcc_tooldir based on inserting the number of up-directory
2868 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2869 # $(libsubdir)/@(unlibsubdir) based path.
2870 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2871 # make and thus we'd get different behavior depending on where we built the
2873 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2874 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2876 changequote(<<, >>)dnl
2877 # An explanation of the sed strings:
2878 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2879 # -e 's|/$||' match a trailing forward slash and eliminates it
2880 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2881 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2883 # (*) Note this pattern overwrites the first character of the string
2884 # with a forward slash if one is not already present. This is not a
2885 # problem because the exact names of the sub-directories concerned is
2886 # unimportant, just the number of them matters.
2888 # The practical upshot of these patterns is like this:
2890 # prefix exec_prefix result
2891 # ------ ----------- ------
2893 # /foo/ /foo/bar ../
2894 # /foo /foo/bar/ ../
2895 # /foo/ /foo/bar/ ../
2896 # /foo /foo/bar/ugg ../../
2899 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2900 changequote([, ])dnl
2902 AC_SUBST(gcc_tooldir)
2905 # Find a directory in which to install a shared libgcc.
2907 AC_ARG_ENABLE(version-specific-runtime-libs,
2908 [ --enable-version-specific-runtime-libs
2909 specify that runtime libraries should be
2910 installed in a compiler-specific directory])
2912 AC_ARG_WITH(slibdir,
2913 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2914 slibdir="$with_slibdir",
2915 if test "${enable_version_specific_runtime_libs+set}" = set; then
2916 slibdir='$(libsubdir)'
2917 elif test "$host" != "$target"; then
2918 slibdir='$(build_tooldir)/lib'
2924 objdir=`${PWDCMD-pwd}`
2927 # Substitute configuration variables
2930 AC_SUBST(all_boot_languages)
2931 AC_SUBST(all_compilers)
2932 AC_SUBST(all_gtfiles)
2933 AC_SUBST(all_gtfiles_files_langs)
2934 AC_SUBST(all_gtfiles_files_files)
2935 AC_SUBST(all_lang_makefrags)
2936 AC_SUBST(all_lang_makefiles)
2937 AC_SUBST(all_languages)
2938 AC_SUBST(all_stagestuff)
2939 AC_SUBST(build_exeext)
2940 AC_SUBST(build_install_headers_dir)
2941 AC_SUBST(build_xm_file_list)
2942 AC_SUBST(build_xm_include_list)
2943 AC_SUBST(build_xm_defines)
2944 AC_SUBST(check_languages)
2945 AC_SUBST(cc_set_by_configure)
2946 AC_SUBST(quoted_cc_set_by_configure)
2947 AC_SUBST(cpp_install_dir)
2948 AC_SUBST(xmake_file)
2949 AC_SUBST(tmake_file)
2950 AC_SUBST(extra_headers_list)
2951 AC_SUBST(extra_objs)
2952 AC_SUBST(extra_parts)
2953 AC_SUBST(extra_passes)
2954 AC_SUBST(extra_programs)
2955 AC_SUBST(float_h_file)
2956 AC_SUBST(gcc_config_arguments)
2957 AC_SUBST(gcc_gxx_include_dir)
2958 AC_SUBST(libstdcxx_incdir)
2959 AC_SUBST(gcc_version)
2960 AC_SUBST(gcc_version_full)
2961 AC_SUBST(gcc_version_trigger)
2962 AC_SUBST(host_exeext)
2963 AC_SUBST(host_extra_gcc_objs)
2964 AC_SUBST(host_xm_file_list)
2965 AC_SUBST(host_xm_include_list)
2966 AC_SUBST(host_xm_defines)
2967 AC_SUBST(out_host_hook_obj)
2969 AC_SUBST(lang_opt_files)
2970 AC_SUBST(lang_specs_files)
2971 AC_SUBST(lang_tree_files)
2972 AC_SUBST(local_prefix)
2974 AC_SUBST(objc_boehm_gc)
2976 AC_SUBST(out_object_file)
2977 AC_SUBST(stage_prefix_set_by_configure)
2978 AC_SUBST(quoted_stage_prefix_set_by_configure)
2979 AC_SUBST(symbolic_link)
2980 AC_SUBST(thread_file)
2981 AC_SUBST(tm_file_list)
2982 AC_SUBST(tm_include_list)
2983 AC_SUBST(tm_defines)
2984 AC_SUBST(tm_p_file_list)
2985 AC_SUBST(tm_p_include_list)
2986 AC_SUBST(xm_file_list)
2987 AC_SUBST(xm_include_list)
2988 AC_SUBST(xm_defines)
2989 AC_SUBST(target_alias)
2990 AC_SUBST(c_target_objs)
2991 AC_SUBST(cxx_target_objs)
2992 AC_SUBST(target_cpu_default)
2994 AC_SUBST_FILE(language_hooks)
2996 # Echo that links are built
2997 if test x$host = x$target
3005 if test x$host != x$build
3007 str3=" on a $build system"
3010 if test "x$str2" != x || test "x$str3" != x
3015 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3017 if test "x$str2" != x || test "x$str3" != x
3019 echo " ${str2}${str3}." 1>&2
3022 # Configure the subdirectories
3023 # AC_CONFIG_SUBDIRS($subdirs)
3025 # Create the Makefile
3026 # and configure language subdirectories
3027 AC_OUTPUT($all_outputs,
3029 case x$CONFIG_HEADERS in
3030 xauto-host.h:config.in)
3033 # Make sure all the subdirs exist.
3036 test -d $d || mkdir $d
3038 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3039 # bootstrapping and the installation procedure can still use
3040 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3041 # FLAGS_TO_PASS has been modified to solve the problem there.
3042 # This is virtually a duplicate of what happens in configure.lang; we do
3043 # an extra check to make sure this only happens if ln -s can be used.
3044 if test "$symbolic_link" = "ln -s"; then
3045 for d in ${subdirs} fixinc ; do
3046 STARTDIR=`${PWDCMD-pwd}`
3048 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3051 $symbolic_link ../$t $t 2>/dev/null
3058 symbolic_link='$symbolic_link'