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 $enableval)
451 AC_SUBST(coverage_flags)
453 # -------------------------------
454 # Miscenalleous configure options
455 # -------------------------------
459 [ --with-stabs arrange to use stabs instead of host debug format],
463 # Determine whether or not multilibs are enabled.
464 AC_ARG_ENABLE(multilib,
465 [ --enable-multilib enable library support for multiple ABIs],
466 [], [enable_multilib=yes])
467 AC_SUBST(enable_multilib)
469 # Enable __cxa_atexit for C++.
470 AC_ARG_ENABLE(__cxa_atexit,
471 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
475 # Pass with no value to take the default
476 # Pass with a value to specify a thread package
477 AC_ARG_ENABLE(threads,
478 [ --enable-threads enable thread usage for target GCC
479 --enable-threads=LIB use LIB thread package for target GCC],,
482 enable_threads_flag=$enable_threads
483 # Check if a valid thread package
484 case x${enable_threads_flag} in
487 target_thread_file='single'
491 target_thread_file=''
493 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
494 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix | xgnat)
495 target_thread_file=$enable_threads_flag
498 echo "$enable_threads is an unknown thread package" 1>&2
503 AC_ARG_ENABLE(objc-gc,
504 [ --enable-objc-gc enable the use of Boehm's garbage collector with
505 the GNU Objective-C runtime],
506 if test x$enable_objc_gc = xno; then
514 [ --with-dwarf2 force the default debug format to be DWARF 2],
515 dwarf2="$with_dwarf2",
518 AC_ARG_ENABLE(shared,
519 [ --disable-shared don't provide a shared libgcc],
521 case $enable_shared in
525 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
526 for pkg in $enableval; do
527 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
534 ], [enable_shared=yes])
535 AC_SUBST(enable_shared)
538 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
540 case ${with_sysroot} in
541 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
542 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
545 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
546 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
548 if test "x$exec_prefix" = xNONE; then
549 if test "x$prefix" = xNONE; then
550 test_prefix=/usr/local
555 test_prefix=$exec_prefix
557 case ${TARGET_SYSTEM_ROOT} in
558 "${test_prefix}"|"${test_prefix}/"*|\
559 '${exec_prefix}'|'${exec_prefix}/'*)
560 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
561 TARGET_SYSTEM_ROOT_DEFINE="$t"
566 TARGET_SYSTEM_ROOT_DEFINE=
567 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
569 AC_SUBST(TARGET_SYSTEM_ROOT)
570 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
571 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
573 # Build with intermodule optimisations
574 AC_ARG_ENABLE(intermodule,
575 [ --enable-intermodule build the compiler in one step],
576 [case ${enable_intermodule} in
577 yes) onestep="-onestep";;
583 # -------------------------
584 # Checks for other programs
585 # -------------------------
589 # Find some useful tools
596 # See if cmp has --ignore-initial.
597 gcc_AC_PROG_CMP_IGNORE_INITIAL
599 # See if we have the mktemp command.
600 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
602 # Do we have a single-tree copy of texinfo?
603 if test -f $srcdir/../texinfo/Makefile.in; then
604 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
605 gcc_cv_prog_makeinfo_modern=yes
606 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
608 # See if makeinfo has been installed and is modern enough
609 # that we can use it.
610 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
611 [GNU texinfo.* \([0-9][0-9.]*\)],
615 if test $gcc_cv_prog_makeinfo_modern = no; then
617 *** Makeinfo is missing or too old.
618 *** Info documentation will not be built.])
621 BUILD_INFO=info AC_SUBST(BUILD_INFO)
624 # Is pod2man recent enough to regenerate manpages?
625 AC_MSG_CHECKING([for recent Pod::Man])
626 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
628 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
635 dnl Don't use AC_PROG_LEX; we insist on flex.
636 dnl LEXLIB is not useful in gcc.
637 if test -f $srcdir/../flex/skel.c; then
638 FLEX='$(objdir)/../flex/flex'
640 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
644 # The -L switch is so bison can find its skeleton file.
645 if test -f $srcdir/../bison/bison.simple; then
646 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
648 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
651 # --------------------
652 # Checks for C headers
653 # --------------------
655 AC_MSG_CHECKING(for GNU C library)
656 AC_CACHE_VAL(gcc_cv_glibc,
658 [#include <features.h>],[
659 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
660 #error Not a GNU C library system
664 AC_MSG_RESULT($gcc_cv_glibc)
665 if test $gcc_cv_glibc = yes; then
666 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
671 gcc_AC_HEADER_STDBOOL
674 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
675 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
676 sys/resource.h sys/param.h sys/times.h sys/stat.h \
677 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
679 # Check for thread headers.
680 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
681 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
683 # These tests can't be done till we know if we have limits.h.
691 # Stage specific cflags for build.
697 stage1_cflags="-Wa,-J"
703 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
704 # sources; use -no-cpp-precomp to get to GNU cpp.
705 # Apple's GCC has bugs in designated initializer handling, so disable
707 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
710 AC_SUBST(stage1_cflags)
712 # These libraries may be used by collect2.
713 # We may need a special search path to get them linked.
714 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
716 for libs in '' -lld -lmld \
717 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
718 '-L/usr/lib/cmplrs/cc3.11 -lmld'
721 AC_TRY_LINK_FUNC(ldopen,
722 [gcc_cv_collect2_libs="$libs"; break])
725 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
726 case $gcc_cv_collect2_libs in
728 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
730 AC_SUBST(COLLECT2_LIBS)
732 # When building Ada code on Alpha, we need exc_resume which is usually in
733 # -lexc. So test for it.
736 AC_SEARCH_LIBS(exc_resume, exc)
739 AC_SUBST(GNAT_LIBEXC)
741 # Some systems put ldexp and frexp in libm instead of libc; assume
742 # they're both in the same place. jcf-dump needs them.
745 AC_SEARCH_LIBS(ldexp, m)
750 # Use <inttypes.h> only if it exists,
751 # doesn't clash with <sys/types.h>, and declares intmax_t.
752 AC_MSG_CHECKING(for inttypes.h)
753 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
755 [#include <sys/types.h>
756 #include <inttypes.h>],
758 [gcc_cv_header_inttypes_h=yes],
759 gcc_cv_header_inttypes_h=no)])
760 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
761 if test $gcc_cv_header_inttypes_h = yes; then
762 AC_DEFINE(HAVE_INTTYPES_H, 1,
763 [Define if you have a working <inttypes.h> header file.])
766 dnl Disabled until we have a complete test for buggy enum bitfields.
767 dnl gcc_AC_C_ENUM_BF_UNSIGNED
769 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
770 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
771 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
772 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
775 if test x$ac_cv_func_mbstowcs = xyes; then
776 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
777 [ AC_TRY_RUN([#include <stdlib.h>
783 gcc_cv_func_mbstowcs_works=yes,
784 gcc_cv_func_mbstowcs_works=no,
785 gcc_cv_func_mbstowcs_works=yes)])
786 if test x$gcc_cv_func_mbstowcs_works = xyes; then
787 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
788 [Define this macro if mbstowcs does not crash when its
789 first argument is NULL.])
793 gcc_AC_CHECK_TYPE(ssize_t, int)
795 # Try to determine the array type of the second argument of getgroups
796 # for the target system (int or gid_t).
798 if test "${target}" = "${build}"; then
799 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
802 # This condition may need some tweaking. It should include all
803 # targets where the array type of the second argument of getgroups
804 # is int and the type of gid_t is not equivalent to int.
805 *-*-sunos* | *-*-ultrix*)
806 TARGET_GETGROUPS_T=int
809 TARGET_GETGROUPS_T=gid_t
813 AC_SUBST(TARGET_GETGROUPS_T)
815 gcc_AC_FUNC_PRINTF_PTR
816 gcc_AC_FUNC_MMAP_BLACKLIST
821 *** UWIN may not be used as a host platform because
822 *** linking with posix.dll is not allowed by the GNU GPL])
825 # Under VMS, vfork works very different than on Unix. The standard test
826 # won't work, and it isn't easily adaptable. It makes more sense to
828 ac_cv_func_vfork_works=yes
834 # Until we have in-tree GNU iconv:
836 AC_SUBST(LIBICONV_DEP)
840 # We will need to find libiberty.h and ansidecl.h
841 saved_CFLAGS="$CFLAGS"
842 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
843 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
844 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
845 fprintf_unlocked strstr errno vasprintf \
846 malloc realloc calloc free basename getopt clock, , ,[
847 #include "ansidecl.h"
848 #include "system.h"])
850 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
851 #include "ansidecl.h"
853 #ifdef HAVE_SYS_RESOURCE_H
854 #include <sys/resource.h>
859 #include "ansidecl.h"
861 #ifdef HAVE_SYS_RESOURCE_H
862 #include <sys/resource.h>
864 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
865 [Define to \`long' if <sys/resource.h> doesn't define.])])
867 gcc_AC_CHECK_DECLS(ldgetname, , ,[
868 #include "ansidecl.h"
875 gcc_AC_CHECK_DECLS(times, , ,[
876 #include "ansidecl.h"
878 #ifdef HAVE_SYS_TIMES_H
879 #include <sys/times.h>
883 # More time-related stuff.
884 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
886 #include "ansidecl.h"
888 #ifdef HAVE_SYS_TIMES_H
889 #include <sys/times.h>
891 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
892 if test $ac_cv_struct_tms = yes; then
893 AC_DEFINE(HAVE_STRUCT_TMS, 1,
894 [Define if <sys/times.h> defines struct tms.])
897 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
898 # revisit after autoconf 2.50.
899 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
901 #include "ansidecl.h"
903 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
904 if test $gcc_cv_type_clock_t = yes; then
905 AC_DEFINE(HAVE_CLOCK_T, 1,
906 [Define if <time.h> defines clock_t.])
909 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
911 #include "ansidecl.h"
914 [if ((uchar *)0) return 0;
915 if (sizeof(uchar)) return 0;],
916 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
917 if test $ac_cv_type_uchar = yes; then
918 AC_DEFINE(HAVE_UCHAR, 1,
919 [Define if <sys/types.h> defines \`uchar'.])
922 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
923 CFLAGS="$saved_CFLAGS"
925 gcc_AC_INITFINI_ARRAY
927 # mkdir takes a single argument on some systems.
928 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
936 # With Setjmp/Longjmp based exception handling.
937 AC_ARG_ENABLE(sjlj-exceptions,
938 [ --enable-sjlj-exceptions
939 arrange to use setjmp/longjmp exception handling],
940 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
941 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
942 [Define 0/1 to force the choice for exception handling model.])])
944 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
945 # Use libunwind based exception handling.
946 AC_ARG_ENABLE(libunwind-exceptions,
947 [ --enable-libunwind-exceptions force use libunwind for exceptions],
948 use_libunwind_exceptions=$enableval,
949 use_libunwind_exceptions=$use_libunwind_default)
950 if test x"$use_libunwind_exceptions" = xyes; then
951 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
952 [Define if gcc should use -lunwind.])
955 # --------------------------------------------------------
956 # Build, host, and target specific configuration fragments
957 # --------------------------------------------------------
959 # Collect build-machine-specific information.
960 . ${srcdir}/config.build
962 # Collect host-machine-specific information.
963 . ${srcdir}/config.host
967 # Collect target-machine-specific information.
968 for machine in $target ; do
969 . ${srcdir}/config.gcc
972 extra_objs="${host_extra_objs} ${extra_objs}"
974 # Default the target-machine variables that were not explicitly set.
975 if test x"$tm_file" = x
976 then tm_file=$cpu_type/$cpu_type.h; fi
978 if test x"$extra_headers" = x
979 then extra_headers=; fi
981 if test x$md_file = x
982 then md_file=$cpu_type/$cpu_type.md; fi
984 if test x$out_file = x
985 then out_file=$cpu_type/$cpu_type.c; fi
987 if test x"$tmake_file" = x
988 then tmake_file=$cpu_type/t-$cpu_type
991 if test x"$dwarf2" = xyes
992 then tm_file="$tm_file tm-dwarf2.h"
995 # Say what files are being used for the output code and MD file.
996 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
997 echo "Using \`$srcdir/config/$md_file' as machine description file."
999 # If any of the xm_file variables contain nonexistent files, warn
1000 # about them and drop them.
1003 for x in $build_xm_file; do
1004 if test -f $srcdir/config/$x
1006 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1012 for x in $host_xm_file; do
1013 if test -f $srcdir/config/$x
1015 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1021 for x in $xm_file; do
1022 if test -f $srcdir/config/$x
1024 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1030 for f in $tm_file; do
1033 if test $count = ax; then
1034 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1036 echo "Using the following target machine macro files:"
1037 for f in $tm_file; do
1038 echo " $srcdir/config/$f"
1042 if test x$need_64bit_hwint = xyes; then
1043 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1044 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1048 for f in $host_xm_file; do
1051 if test $count = a; then
1053 elif test $count = ax; then
1054 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1056 echo "Using the following host machine macro files:"
1057 for f in $host_xm_file; do
1058 echo " $srcdir/config/$f"
1061 echo "Using ${out_host_hook_obj} for host machine hooks."
1063 if test "$host_xm_file" != "$build_xm_file"; then
1065 for f in $build_xm_file; do
1068 if test $count = a; then
1070 elif test $count = ax; then
1071 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1073 echo "Using the following build machine macro files:"
1074 for f in $build_xm_file; do
1075 echo " $srcdir/config/$f"
1080 if test x$thread_file = x; then
1081 if test x$target_thread_file != x; then
1082 thread_file=$target_thread_file
1084 thread_file='single'
1088 if test x$enable___cxa_atexit = xyes || \
1089 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1090 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1091 [Define if you want to use __cxa_atexit, rather than atexit, to
1092 register C++ destructors for local statics and global objects.
1093 This is essential for fully standards-compliant handling of
1094 destructors, but requires __cxa_atexit in libc.])
1097 # Look for a file containing extra machine modes.
1098 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1099 extra_modes_file='$(srcdir)'/config/${extra_modes}
1100 AC_SUBST(extra_modes_file)
1101 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1102 [Define to the name of a file containing a list of extra machine modes
1103 for this architecture.])
1104 AC_DEFINE(EXTRA_CC_MODES, 1,
1105 [Define if the target architecture needs extra machine modes to represent
1106 the results of comparisons.])
1109 # auto-host.h is the file containing items generated by autoconf and is
1110 # the first file included by config.h.
1111 # If host=build, it is correct to have bconfig include auto-host.h
1112 # as well. If host!=build, we are in error and need to do more
1113 # work to find out the build config parameters.
1114 if test x$host = x$build
1116 build_auto=auto-host.h
1119 # We create a subdir, then run autoconf in the subdir.
1120 # To prevent recursion we set host and build for the new
1121 # invocation of configure to the build for this invocation
1128 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1129 *) realsrcdir=../${srcdir};;
1131 saved_CFLAGS="${CFLAGS}"
1132 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1133 ${realsrcdir}/configure \
1134 --target=$target_alias --host=$build_alias --build=$build_alias
1135 CFLAGS="${saved_CFLAGS}"
1137 # We just finished tests for the build machine, so rename
1138 # the file auto-build.h in the gcc directory.
1139 mv auto-host.h ../auto-build.h
1142 build_auto=auto-build.h
1143 FORBUILD=../${build_subdir}
1147 tm_file="${tm_file} defaults.h"
1148 tm_p_file="${tm_p_file} tm-preds.h"
1149 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1150 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1151 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1152 # put this back in temporarily.
1153 xm_file="ansidecl.h ${xm_file}"
1159 # Get the version trigger filename from the toplevel
1160 if test "${with_gcc_version_trigger+set}" = set; then
1161 gcc_version_trigger=$with_gcc_version_trigger
1163 gcc_version_trigger=${srcdir}/version.c
1166 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1167 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1169 # Compile in configure arguments.
1170 if test -f configargs.h ; then
1171 # Being re-configured.
1172 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1173 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1175 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1178 # Double all backslashes and backslash all quotes to turn
1179 # gcc_config_arguments into a C string.
1180 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1181 $gcc_config_arguments
1183 gcc_config_arguments_str=`cat conftest.out`
1186 cat > configargs.h <<EOF
1187 /* Generated automatically. */
1188 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1189 static const char thread_model[] = "$thread_file";
1191 static const struct {
1192 const char *name, *value;
1193 } configure_default_options[] = $configure_default_options;
1197 # Internationalization
1199 VERSION="$gcc_version"
1203 ZW_GNU_GETTEXT_SISTER_DIR
1205 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1206 # -liconv on the link line twice.
1207 case "$LIBINTL" in *$LIBICONV*)
1211 # Windows32 Registry support for specifying GCC installation paths.
1212 AC_ARG_ENABLE(win32-registry,
1213 [ --disable-win32-registry
1214 disable lookup of installation paths in the
1215 Registry on Windows hosts
1216 --enable-win32-registry enable registry lookup (default)
1217 --enable-win32-registry=KEY
1218 use KEY instead of GCC version as the last portion
1219 of the registry key],,)
1221 win32 | pe | cygwin* | mingw32* | uwin*)
1222 AC_MSG_CHECKING(whether windows registry support is requested)
1223 if test "x$enable_win32_registry" != xno; then
1224 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1225 [Define to 1 if installation paths should be looked up in Windows32
1226 Registry. Ignored on non windows32 hosts.])
1228 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1233 # Check if user specified a different registry key.
1234 case "x${enable_win32_registry}" in
1237 gcc_cv_win32_registry_key="$VERSION"
1240 # no registry lookup.
1241 gcc_cv_win32_registry_key=''
1244 # user-specified key.
1245 gcc_cv_win32_registry_key="$enable_win32_registry"
1249 if test "x$enable_win32_registry" != xno; then
1250 AC_MSG_CHECKING(registry key on windows hosts)
1251 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1252 [Define to be the last portion of registry key on windows hosts.])
1253 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1258 # Get an absolute path to the GCC top-level source directory
1259 holddir=`${PWDCMD-pwd}`
1261 topdir=`${PWDCMD-pwd}`
1264 # Conditionalize the makefile for this host machine.
1266 for f in ${host_xmake_file}
1268 if test -f ${srcdir}/config/$f
1270 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1274 # Conditionalize the makefile for this target machine.
1276 for f in ${tmake_file}
1278 if test -f ${srcdir}/config/$f
1280 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1283 tmake_file="${tmake_file_}"
1285 symbolic_link='ln -s'
1287 # If the host doesn't support symlinks, modify CC in
1288 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1289 # Otherwise, we can use "CC=$(CC)".
1291 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1293 cc_set_by_configure="\$(CC)"
1294 quoted_cc_set_by_configure="\$(CC)"
1295 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1296 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1299 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1301 symbolic_link="cp -p"
1305 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1306 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1307 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1308 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1312 out_object_file=`basename $out_file .c`.o
1316 for f in $tm_file; do
1319 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1320 tm_include_list="${tm_include_list} $f"
1323 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1324 tm_include_list="${tm_include_list} config/$f"
1331 for f in $tm_p_file; do
1334 tm_p_file_list="${tm_p_file_list} $f"
1335 tm_p_include_list="${tm_p_include_list} $f"
1338 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1339 tm_p_include_list="${tm_p_include_list} config/$f"
1345 for f in $xm_file; do
1348 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1349 xm_include_list="${xm_include_list} $f"
1352 xm_file_list="${xm_file_list} $f"
1353 xm_include_list="${xm_include_list} $f"
1356 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1357 xm_include_list="${xm_include_list} config/$f"
1363 host_xm_include_list=
1364 for f in $host_xm_file; do
1367 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1368 host_xm_include_list="${host_xm_include_list} $f"
1371 host_xm_file_list="${host_xm_file_list} $f"
1372 host_xm_include_list="${host_xm_include_list} $f"
1375 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1376 host_xm_include_list="${host_xm_include_list} config/$f"
1382 for f in $build_xm_file; do
1385 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1386 build_xm_include_list="${build_xm_include_list} $f"
1388 auto-build.h | auto-host.h )
1389 build_xm_file_list="${build_xm_file_list} $f"
1390 build_xm_include_list="${build_xm_include_list} $f"
1393 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1394 build_xm_include_list="${build_xm_include_list} config/$f"
1399 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1400 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1401 CROSS= AC_SUBST(CROSS)
1402 ALL=all.internal AC_SUBST(ALL)
1403 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1404 if test x$host != x$target
1406 CROSS="-DCROSS_COMPILE"
1408 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1409 case "$host","$target" in
1410 # Darwin crosses can use the host system's libraries and headers,
1411 # because of the fat library support. Of course, it must be the
1412 # same version of Darwin on both sides. Allow the user to
1413 # just say --target=foo-darwin without a version number to mean
1414 # "the version on this system".
1415 *-*-darwin*,*-*-darwin*)
1416 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1417 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1418 if test $hostos = $targetos -o $targetos = darwin ; then
1420 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1425 i?86-*-*,x86_64-*-* \
1426 | powerpc*-*-*,powerpc64*-*-*)
1427 CROSS="$CROSS -DNATIVE_CROSS" ;;
1429 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1430 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1431 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1434 # If this is a cross-compiler that does not
1435 # have its own set of headers then define
1438 # If this is using newlib, without having the headers available now,
1439 # then define inhibit_libc in LIBGCC2_CFLAGS.
1440 # This prevents libgcc2 from containing any code which requires libc
1443 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1444 test x$with_newlib = xyes ; } &&
1445 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1446 inhibit_libc=-Dinhibit_libc
1448 AC_SUBST(inhibit_libc)
1450 # When building gcc with a cross-compiler, we need to adjust things so
1451 # that the generator programs are still built with the native compiler.
1452 # Also, we cannot run fixincludes or fix-header.
1454 # These are the normal (build=host) settings:
1455 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1456 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1457 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1458 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1460 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1462 # Possibly disable fixproto, on a per-target basis.
1463 case ${use_fixproto} in
1468 STMP_FIXPROTO=stmp-fixproto
1471 AC_SUBST(STMP_FIXPROTO)
1473 # And these apply if build != host, or we are generating coverage data
1474 if test x$build != x$host || test "x$coverage_flags" != x
1477 BUILD_PREFIX_1=build-
1478 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1480 if test "x$TARGET_SYSTEM_ROOT" = x; then
1486 # Expand extra_headers to include complete path.
1487 # This substitutes for lots of t-* files.
1489 if test "x$extra_headers" = x
1492 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1493 for file in $extra_headers;
1495 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1499 # Add a definition of USE_COLLECT2 if system wants one.
1500 case $use_collect2 in
1501 no) use_collect2= ;;
1504 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1505 xm_defines="${xm_defines} USE_COLLECT2"
1509 # Identify the assembler which will work hand-in-glove with the newly
1510 # built GCC, so that we can examine its features. This is the assembler
1511 # which will be driven by the driver program.
1513 # If build != host, and we aren't building gas in-tree, we identify a
1514 # build->target assembler and hope that it will have the same features
1515 # as the host->target assembler we'll be using.
1516 AC_MSG_CHECKING(what assembler to use)
1519 gcc_cv_gas_major_version=
1520 gcc_cv_gas_minor_version=
1521 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1522 if test -x "$DEFAULT_ASSEMBLER"; then
1523 gcc_cv_as="$DEFAULT_ASSEMBLER"
1524 elif test -x "$AS"; then
1526 elif test -x as$host_exeext; then
1527 # Build using assembler in the current directory.
1528 gcc_cv_as=./as$host_exeext
1529 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1530 && test -f ../gas/Makefile; then
1531 # Single tree build which includes gas.
1533 _gcc_COMPUTE_GAS_VERSION
1534 rm -f as$host_exeext
1535 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1536 in_tree_gas_is_elf=no
1537 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1538 || (grep 'obj_format = multi' ../gas/Makefile \
1539 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1541 in_tree_gas_is_elf=yes
1545 if test "x$gcc_cv_as" = x; then
1546 # Search the same directories that the installed compiler will
1547 # search. Else we may find the wrong assembler and lose. If we
1548 # do not find a suitable assembler binary, then try the user's
1551 # Also note we have to check MD_EXEC_PREFIX before checking the
1552 # user's path. Unfortunately, there is no good way to get at the
1553 # value of MD_EXEC_PREFIX here. So we do a brute force search
1554 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1555 # to be fixed as part of the make/configure rewrite too.
1557 if test "x$exec_prefix" = xNONE; then
1558 if test "x$prefix" = xNONE; then
1559 test_prefix=/usr/local
1564 test_prefix=$exec_prefix
1567 # If the loop below does not find an assembler, then use whatever
1568 # one we can find in the users's path.
1570 if test "x$program_prefix" != xNONE; then
1571 gcc_cv_as=${program_prefix}as$host_exeext
1573 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1576 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1577 $test_prefix/lib/gcc-lib/$target_alias \
1578 /usr/lib/gcc/$target_alias/$gcc_version \
1579 /usr/lib/gcc/$target_alias \
1580 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1581 $test_prefix/$target_alias/bin"
1583 if test x$host = x$target; then
1584 test_dirs="$test_dirs \
1589 /bsd43/usr/lib/cmplrs/cc \
1590 /usr/cross64/usr/bin \
1591 /usr/lib/cmplrs/cc \
1592 /sysv/usr/lib/cmplrs/cc \
1593 /svr4/usr/lib/cmplrs/cc \
1597 for dir in $test_dirs; do
1598 if test -x $dir/as$host_exeext; then
1599 gcc_cv_as=$dir/as$host_exeext
1604 case $in_tree_gas in
1606 AC_MSG_RESULT("newly built gas")
1609 AC_MSG_RESULT($gcc_cv_as)
1613 # Identify the linker which will work hand-in-glove with the newly
1614 # built GCC, so that we can examine its features. This is the linker
1615 # which will be driven by the driver program.
1617 # If build != host, and we aren't building gas in-tree, we identify a
1618 # build->target linker and hope that it will have the same features
1619 # as the host->target linker we'll be using.
1620 AC_MSG_CHECKING(what linker to use)
1623 gcc_cv_gld_major_version=
1624 gcc_cv_gld_minor_version=
1625 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1626 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1627 if test -x "$DEFAULT_LINKER"; then
1628 gcc_cv_ld="$DEFAULT_LINKER"
1629 elif test -x "$LD"; then
1631 elif test -x collect-ld$host_exeext; then
1632 # Build using linker in the current directory.
1633 gcc_cv_ld=./collect-ld$host_exeext
1634 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1635 && test -f ../ld/Makefile; then
1636 # Single tree build which includes ld.
1638 in_tree_ld_is_elf=no
1639 if (grep 'EMUL = .*elf' ../ld/Makefile \
1640 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1641 in_tree_ld_is_elf=yes
1643 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
1646 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1648 if test x$gcc_cv_gld_version != x; then
1653 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1654 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1656 rm -f collect-ld$host_exeext
1657 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1661 if test "x$gcc_cv_ld" = x; then
1662 # Search the same directories that the installed compiler will
1663 # search. Else we may find the wrong linker and lose. If we
1664 # do not find a suitable linker binary, then try the user's
1667 # Also note we have to check MD_EXEC_PREFIX before checking the
1668 # user's path. Unfortunately, there is no good way to get at the
1669 # value of MD_EXEC_PREFIX here. So we do a brute force search
1670 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1671 # to be fixed as part of the make/configure rewrite too.
1673 if test "x$exec_prefix" = xNONE; then
1674 if test "x$prefix" = xNONE; then
1675 test_prefix=/usr/local
1680 test_prefix=$exec_prefix
1683 # If the loop below does not find an linker, then use whatever
1684 # one we can find in the users's path.
1686 if test "x$program_prefix" != xNONE; then
1687 gcc_cv_ld=${program_prefix}ld$host_exeext
1689 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1692 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1693 $test_prefix/lib/gcc-lib/$target_alias \
1694 /usr/lib/gcc/$target_alias/$gcc_version \
1695 /usr/lib/gcc/$target_alias \
1696 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1697 $test_prefix/$target_alias/bin"
1699 if test x$host = x$target; then
1700 test_dirs="$test_dirs \
1705 /bsd43/usr/lib/cmplrs/cc \
1706 /usr/cross64/usr/bin \
1707 /usr/lib/cmplrs/cc \
1708 /sysv/usr/lib/cmplrs/cc \
1709 /svr4/usr/lib/cmplrs/cc \
1713 for dir in $test_dirs; do
1714 if test -x $dir/ld$host_exeext; then
1715 gcc_cv_ld=$dir/ld$host_exeext
1722 AC_MSG_RESULT("newly built ld")
1725 AC_MSG_RESULT($gcc_cv_ld)
1729 # Figure out what nm we will be using.
1730 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1731 AC_MSG_CHECKING(what nm to use)
1733 if test -x nm$host_exeext; then
1734 gcc_cv_nm=./nm$host_exeext
1735 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1736 && test -f ../binutils/Makefile; then
1737 # Single tree build which includes binutils.
1739 gcc_cv_nm=./nm$host_exeext
1740 rm -f nm$host_exeext
1741 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1742 elif test "x$program_prefix" != xNONE; then
1743 gcc_cv_nm=${program_prefix}nm$host_exeext
1745 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1748 yes) AC_MSG_RESULT("newly built nm") ;;
1749 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1752 # Figure out what objdump we will be using.
1753 AC_MSG_CHECKING(what objdump to use)
1755 if test -x objdump$host_exeext; then
1756 gcc_cv_objdump=./objdump$host_exeext
1757 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1758 && test -f ../binutils/Makefile; then
1759 # Single tree build which includes binutils.
1761 gcc_cv_objdump=./objdump$host_exeext
1762 rm -f objdump$host_exeext
1763 $symbolic_link ../binutils/objdump$host_exeext \
1764 objdump$host_exeext 2>/dev/null
1765 elif test "x$program_prefix" != xNONE; then
1766 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1768 gcc_cv_objdump=`echo objdump | \
1769 sed ${program_transform_name}`$host_exeext
1771 case $in_tree_objdump in
1772 yes) AC_MSG_RESULT("newly built objdump") ;;
1773 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1776 # Figure out what assembler alignment features are present.
1777 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1781 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1782 [Define if your assembler supports .balign and .p2align.])])
1784 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1787 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1788 [Define if your assembler supports specifying the maximum number
1789 of bytes to skip when using the GAS .p2align command.])])
1791 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1793 [conftest_label1: .word 0
1795 conftest_label2: .word 0
1797 [if test x$gcc_cv_nm != x; then
1798 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1799 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1800 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1802 else gcc_cv_as_subsection_m1=yes
1804 rm -f conftest.nm1 conftest.nm2
1806 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1807 [Define if your assembler supports .subsection and .subsection -1 starts
1808 emitting at the beginning of your section.])])
1810 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1813 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1815 # .hidden needs to be supported in both the assembler and the linker,
1816 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1817 # This is irritatingly difficult to feature test for; we have to check the
1818 # date string after the version number. If we've got an in-tree
1819 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1821 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1822 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1827 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1828 [if test $in_tree_ld = yes ; then
1830 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1831 && test $in_tree_ld_is_elf = yes; then
1832 gcc_cv_ld_hidden=yes
1835 gcc_cv_ld_hidden=yes
1836 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1837 if echo "$ld_ver" | grep GNU > /dev/null; then
1839 ld_vers=`echo $ld_ver | sed -n \
1840 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1841 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1842 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1843 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1844 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1845 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1846 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1847 if test 0"$ld_date" -lt 20020404; then
1848 if test -n "$ld_date"; then
1849 # If there was date string, but was earlier than 2002-04-04, fail
1851 elif test -z "$ld_vers"; then
1852 # If there was no date string nor ld version number, something is wrong
1855 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1856 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1857 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1858 test -z "$ld_vers_patch" && ld_vers_patch=0
1859 if test "$ld_vers_major" -lt 2; then
1861 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1862 gcc_cv_ld_hidden="no"
1863 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1870 # non-GNU linkers don't seem to support .hidden yet
1874 libgcc_visibility=no
1875 AC_SUBST(libgcc_visibility)
1876 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
1877 libgcc_visibility=yes
1878 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1879 [Define if your assembler and linker support .hidden.])
1882 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1883 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1891 [# GAS versions before 2.11 do not support uleb128,
1892 # despite appearing to.
1893 # ??? There exists an elf-specific test that will crash
1894 # the assembler. Perhaps it's better to figure out whether
1895 # arbitrary sections are supported and try the test.
1896 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
1897 if echo "$as_ver" | grep GNU > /dev/null; then
1899 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1900 as_major=`echo $as_ver | sed 's/\..*//'`
1901 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1903 if test $as_major -eq 2 && test $as_minor -lt 11
1905 else gcc_cv_as_leb128=yes
1908 [AC_DEFINE(HAVE_AS_LEB128, 1,
1909 [Define if your assembler supports .sleb128 and .uleb128.])])
1911 # GAS versions up to and including 2.11.0 may mis-optimize
1913 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
1921 .section .eh_frame,"aw",@progbits
1923 .4byte .LECIE1-.LSCIE1
1937 .4byte .LEFDE1-.LASFDE1
1939 .4byte .LASFDE1-__FRAME_BEGIN__
1947 [ cat > conftest.lit <<EOF
1948 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1949 0010 01000000 12000000 18000000 00000000 ................
1950 0020 08000000 04080000 0044 .........D
1952 cat > conftest.big <<EOF
1953 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1954 0010 00000001 00000012 00000018 00000000 ................
1955 0020 00000008 04000000 0844 .........D
1957 # If the assembler didn't choke, and we can objdump,
1958 # and we got the correct data, then succeed.
1959 if test x$gcc_cv_objdump != x \
1960 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1961 | tail -3 > conftest.got \
1962 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1963 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1965 gcc_cv_as_eh_frame=yes
1966 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
1967 gcc_cv_as_eh_frame=buggy
1969 # Uh oh, what do we do now?
1970 gcc_cv_as_eh_frame=no
1973 if test $gcc_cv_as_eh_frame = buggy; then
1974 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1975 [Define if your assembler mis-optimizes .eh_frame data.])
1978 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
1979 [elf,2,12,0], [--fatal-warnings],
1980 [.section .rodata.str, "aMS", @progbits, 1],,
1981 [AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1982 [Define if your assembler supports marking sections with SHF_MERGE flag.])])
1984 # Thread-local storage - the check is heavily parametrized.
1993 .section ".tdata","awT",@progbits
1996 ldq $27,__tls_get_addr($29) !literal!1
1997 lda $16,foo($29) !tlsgd!1
1998 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
1999 ldq $27,__tls_get_addr($29) !literal!2
2000 lda $16,foo($29) !tlsldm!2
2001 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2002 ldq $1,foo($29) !gotdtprel
2003 ldah $2,foo($29) !dtprelhi
2004 lda $3,foo($2) !dtprello
2005 lda $4,foo($29) !dtprel
2006 ldq $1,foo($29) !gottprel
2007 ldah $2,foo($29) !tprelhi
2008 lda $3,foo($2) !tprello
2009 lda $4,foo($29) !tprel'
2015 .section ".tdata","awT",@progbits
2019 leal foo@TLSGD(,%ebx,1), %eax
2020 leal foo@TLSLDM(%ebx), %eax
2021 leal foo@DTPOFF(%eax), %edx
2022 movl foo@GOTTPOFF(%ebx), %eax
2023 subl foo@GOTTPOFF(%ebx), %eax
2024 addl foo@GOTNTPOFF(%ebx), %eax
2025 movl foo@INDNTPOFF, %eax
2026 movl $foo@TPOFF, %eax
2027 subl $foo@TPOFF, %eax
2028 leal foo@NTPOFF(%ecx), %eax'
2034 .section ".tdata","awT",@progbits
2038 leaq foo@TLSGD(%rip), %rdi
2039 leaq foo@TLSLD(%rip), %rdi
2040 leaq foo@DTPOFF(%rax), %rdx
2041 movq foo@GOTTPOFF(%rip), %rax
2042 movq $foo@TPOFF, %rax'
2048 .section ".tdata","awT",@progbits
2051 addl r16 = @ltoff(@dtpmod(foo#)), gp
2052 addl r17 = @ltoff(@dtprel(foo#)), gp
2053 addl r18 = @ltoff(@tprel(foo#)), gp
2054 addl r19 = @dtprel(foo#), gp
2055 adds r21 = @dtprel(foo#), r13
2056 movl r23 = @dtprel(foo#)
2057 addl r20 = @tprel(foo#), gp
2058 adds r22 = @tprel(foo#), r13
2059 movl r24 = @tprel(foo#)'
2065 .section ".tdata","awT",@progbits
2073 addi 3,31,ld0@got@tlsgd
2075 addi 3,31,x1@got@tlsld
2078 addis 9,3,x2@dtprel@ha
2079 addi 9,9,x2@dtprel@l
2080 lwz 9,x3@got@tprel(31)
2083 addis 9,2,x2@tprel@ha
2084 addi 9,9,x2@tprel@l'
2091 .section ".tdata","awT",@progbits
2099 addi 3,2,ld0@got@tlsgd
2105 addi 3,2,x1@got@tlsld
2111 addis 9,3,x2@dtprel@ha
2112 addi 9,9,x2@dtprel@l
2115 ld 9,x3@got@dtprel(2)
2125 .section ".tdata","awT",@progbits
2134 l %r1,foo@GOTNTPOFF(%r12)
2135 l %r1,0(%r1):tls_load:foo
2136 bas %r14,0(%r1,%r13):tls_gdcall:foo
2137 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2144 .section ".tdata","awT",@progbits
2152 lg %r1,foo@GOTNTPOFF(%r12)
2153 larl %r1,foo@INDNTPOFF
2154 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2155 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2158 tls_as_opt="-m64 -Aesame"
2162 .section ".tdata","awT",@progbits
2165 sethi %tgd_hi22(foo), %o0
2166 add %o0, %tgd_lo10(foo), %o1
2167 add %l7, %o1, %o0, %tgd_add(foo)
2168 call __tls_get_addr, %tgd_call(foo)
2169 sethi %tldm_hi22(foo), %l1
2170 add %l1, %tldm_lo10(foo), %l2
2171 add %l7, %l2, %o0, %tldm_add(foo)
2172 call __tls_get_addr, %tldm_call(foo)
2173 sethi %tldo_hix22(foo), %l3
2174 xor %l3, %tldo_lox10(foo), %l4
2175 add %o0, %l4, %l5, %tldo_add(foo)
2176 sethi %tie_hi22(foo), %o3
2177 add %o3, %tie_lo10(foo), %o3
2178 ld [%l7 + %o3], %o2, %tie_ld(foo)
2179 add %g7, %o2, %o4, %tie_add(foo)
2180 sethi %tle_hix22(foo), %l1
2181 xor %l1, %tle_lox10(foo), %o5
2182 ld [%g7 + %o5], %o1'
2189 if test -z "$tls_first_major"; then
2190 : # If we don't have a check, assume no support.
2192 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2193 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt --fatal-warnings],
2195 [AC_DEFINE(HAVE_AS_TLS, 1,
2196 [Define if your assembler supports thread-local storage.])])
2199 # Target-specific assembler checks.
2202 # All TARGET_ABI_OSF targets.
2203 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2204 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2205 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2208 extbl $3, $2, $3 !lituse_bytoff!1
2209 ldq $2, a($29) !literal!1
2210 ldq $4, b($29) !literal!2
2211 ldq_u $3, 0($2) !lituse_base!1
2212 ldq $27, f($29) !literal!5
2213 jsr $26, ($27), f !lituse_jsr!5
2214 ldah $29, 0($26) !gpdisp!3
2215 lda $0, c($29) !gprel
2216 ldah $1, d($29) !gprelhigh
2217 lda $1, d($1) !gprellow
2218 lda $29, 0($29) !gpdisp!3],,
2219 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2220 [Define if your assembler supports explicit relocations.])])
2224 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2225 [.register %g2, #scratch],,
2226 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2227 [Define if your assembler supports .register.])])
2229 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2231 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2232 [Define if your assembler supports -relax option.])])
2234 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2235 gcc_cv_as_sparc_ua_pcrel,,
2243 .uaword %r_disp32(foo)],
2244 [if test x$gcc_cv_ld != x \
2245 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2246 gcc_cv_as_sparc_ua_pcrel=yes
2249 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2250 [Define if your assembler and linker support unaligned PC relative relocs.])
2252 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2253 gcc_cv_as_sparc_ua_pcrel_hidden,,
2258 .uaword %r_disp32(foo)
2259 .byte 0x32, 0x33, 0x34
2264 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2265 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2266 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2267 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2268 if $gcc_cv_objdump -R conftest 2> /dev/null \
2269 | grep 'DISP32' > /dev/null 2>&1; then
2272 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2276 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2277 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2278 ]) # unaligned pcrel relocs
2280 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2281 gcc_cv_as_sparc_offsetable_lo10,,
2284 or %g1, %lo(ab) + 12, %g1
2285 or %g1, %lo(ab + 12), %g1],
2286 [if test x$gcc_cv_objdump != x \
2287 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2288 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2289 gcc_cv_as_offsetable_lo10=yes
2291 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2292 [Define if your assembler supports offsetable %lo().])])
2296 i[34567]86-*-* | x86_64-*-*)
2298 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2299 gcc_cv_as_ix86_filds_fists,
2300 [2,9,0],, [filds mem; fists mem],,
2301 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2302 [Define if your assembler uses the new HImode fild and fist notation.])])
2304 gcc_GAS_CHECK_FEATURE([cmov syntax],
2305 gcc_cv_as_ix86_cmov_sun_syntax,,,
2306 [cmovl.l %edx, %eax],,
2307 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2308 [Define if your assembler supports the Sun syntax for cmov.])])
2310 # This one is used unconditionally by i386.[ch]; it is to be defined
2311 # to 1 if the feature is present, 0 otherwise.
2312 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2313 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2319 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2320 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2321 [Define true if the assembler supports '.long foo@GOTOFF'.])
2325 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2326 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2328 addl r15 = @ltoffx(x#), gp
2330 ld8.mov r16 = [[r15]], x#],,
2331 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2332 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2338 *-*-aix) conftest_s=' .csect .text[PR]';;
2339 *) conftest_s=' .text';;
2341 conftest_s="$conftest_s
2344 gcc_GAS_CHECK_FEATURE([mfcr field support],
2345 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2347 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2348 [Define if your assembler supports mfcr field.])])
2352 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2353 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2354 [ lw $4,%gp_rel(foo)($4)],,
2355 [if test x$target_cpu_default = x
2356 then target_cpu_default=MASK_EXPLICIT_RELOCS
2357 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2362 # ??? Not all targets support dwarf2 debug_line, even within a version
2363 # of gas. Moreover, we need to emit a valid instruction to trigger any
2364 # info to the output file. So, as supported targets are added to gas 2.11,
2365 # add some instruction here to (also) show we expect this might work.
2366 # ??? Once 2.11 is released, probably need to add first known working
2367 # version to the per-target configury.
2369 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2370 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2371 | xstormy16*-*-* | cris-*-*)
2381 if test x"$insn" != x; then
2383 .file 1 \"conftest.s\"
2386 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2387 gcc_cv_as_dwarf2_debug_line,
2388 [elf,2,11,0],, [$conftest_s],
2389 [# ??? This fails with non-gnu grep. Maybe use objdump?
2390 if grep debug_line conftest.o > /dev/null 2>&1; then
2391 gcc_cv_as_dwarf2_debug_line=yes
2394 # The .debug_line file table must be in the exact order that
2395 # we specified the files, since these indices are also used
2396 # by DW_AT_decl_file. Approximate this test by testing if
2397 # the assembler bitches if the same index is assigned twice.
2398 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2399 gcc_cv_as_dwarf2_file_buggy,,,
2403 if test $gcc_cv_as_dwarf2_debug_line = yes \
2404 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2405 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2406 [Define if your assembler supports dwarf2 .file/.loc directives,
2407 and preserves file table indices exactly as given.])
2410 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2411 gcc_cv_as_gdwarf2_flag,
2412 [elf,2,11,0], [--gdwarf2], [$insn],,
2413 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2414 [Define if your assembler supports the --gdwarf2 option.])])
2416 gcc_GAS_CHECK_FEATURE([--gstabs option],
2417 gcc_cv_as_gstabs_flag,
2418 [elf,2,11,0], [--gstabs], [$insn],
2419 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2420 # and warns about it, but still exits successfully. So check for
2422 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2424 else gcc_cv_as_gstabs_flag=yes
2426 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2427 [Define if your assembler supports the --gstabs option.])])
2430 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2431 gcc_cv_ld_ro_rw_mix=unknown
2432 if test $in_tree_ld = yes ; then
2433 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2434 && test $in_tree_ld_is_elf = yes; then
2435 gcc_cv_ld_ro_rw_mix=read-write
2437 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2438 echo '.section myfoosect, "a"' > conftest1.s
2439 echo '.section myfoosect, "aw"' > conftest2.s
2440 echo '.byte 1' >> conftest2.s
2441 echo '.section myfoosect, "a"' > conftest3.s
2442 echo '.byte 0' >> conftest3.s
2443 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2444 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2445 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2446 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2447 conftest2.o conftest3.o > /dev/null 2>&1; then
2448 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2449 | sed -e '/myfoosect/!d' -e N`
2450 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2451 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2452 gcc_cv_ld_ro_rw_mix=read-only
2454 gcc_cv_ld_ro_rw_mix=read-write
2459 rm -f conftest.* conftest[123].*
2462 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2463 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2464 [Define if your linker links a mix of read-only
2465 and read-write sections into a read-write section.])
2467 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2469 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2470 gcc_cv_ld_eh_frame_hdr=no
2471 if test $in_tree_ld = yes ; then
2472 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2473 && test $in_tree_ld_is_elf = yes; then
2474 gcc_cv_ld_eh_frame_hdr=yes
2476 elif test x$gcc_cv_ld != x; then
2477 # Check if linker supports --eh-frame-hdr option
2478 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2479 gcc_cv_ld_eh_frame_hdr=yes
2482 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2483 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2484 [Define if your linker supports --eh-frame-hdr option.])
2486 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2488 AC_MSG_CHECKING(linker position independent executable support)
2490 if test $in_tree_ld = yes ; then
2491 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2492 && test $in_tree_ld_is_elf = yes; then
2495 elif test x$gcc_cv_ld != x; then
2496 # Check if linker supports -pie option
2497 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2501 if test x"$gcc_cv_ld_pie" = xyes; then
2502 AC_DEFINE(HAVE_LD_PIE, 1,
2503 [Define if your linker supports -pie option.])
2505 AC_MSG_RESULT($gcc_cv_ld_pie)
2507 # Miscellaneous target-specific checks.
2510 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2511 gcc_cv_mips_libgloss_startup=no
2512 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2513 if test "x$exec_prefix" = xNONE; then
2514 if test "x$prefix" = xNONE; then
2515 test_prefix=/usr/local
2520 test_prefix=$exec_prefix
2522 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2524 if grep '^STARTUP' $f > /dev/null 2>&1; then
2525 gcc_cv_mips_libgloss_startup=yes
2529 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2530 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2531 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2533 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2537 if test x$with_sysroot = x && test x$host = x$target \
2538 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2539 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2540 [Define to PREFIX/include if cpp should also search that directory.])
2543 # Figure out what language subdirectories are present.
2544 # Look if the user specified --enable-languages="..."; if not, use
2545 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2547 # NB: embedded tabs in this IF block -- do not untabify
2548 if test x"${enable_languages+set}" != xset; then
2549 if test x"${LANGUAGES+set}" = xset; then
2550 enable_languages="${LANGUAGES}"
2551 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2554 enable_languages=all
2557 if test x"${enable_languages}" = x \
2558 || test x"${enable_languages}" = xyes;
2560 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2563 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2565 # First scan to see if an enabled language requires some other language.
2566 # We assume that a given config-lang.in will list all the language
2567 # front ends it requires, even if some are required indirectly.
2568 for lang in ${srcdir}/*/config-lang.in
2571 # The odd quoting in the next line works around
2572 # an apparent bug in bash 1.12 on linux.
2574 ${srcdir}/[*]/config-lang.in)
2577 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2578 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2579 for other in $this_lang_requires
2581 case ,${enable_languages}, in
2587 enable_languages="$enable_languages,$other"
2596 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2599 for lang in ${srcdir}/*/config-lang.in
2602 # The odd quoting in the next line works around
2603 # an apparent bug in bash 1.12 on linux.
2605 ${srcdir}/[*]/config-lang.in) ;;
2607 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2608 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2609 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2610 if test "x$lang_alias" = x
2612 echo "$lang doesn't set \$language." 1>&2
2615 case ${build_by_default},${enable_languages}, in
2616 *,$lang_alias,*) add_this_lang=yes ;;
2617 no,*) add_this_lang=no ;;
2618 *,all,*) add_this_lang=yes ;;
2619 *) add_this_lang=no ;;
2621 found_languages="${found_languages} ${lang_alias}"
2622 if test x"${add_this_lang}" = xyes; then
2624 ${srcdir}/ada/config-lang.in)
2625 if test x$have_gnat = xyes ; then
2626 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2630 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2640 for expected_language in ${expected_languages} ..
2642 if test "${expected_language}" != ..; then
2643 missing_language="${expected_language}"
2644 if test "${expected_language}" = "c" \
2645 || test "${expected_language}" = "all"; then
2648 for found_language in ${found_languages} ..
2650 if test "${found_language}" != ..; then
2651 if test "${expected_language}" = "${found_language}"; then
2656 if test "x${missing_language}" != x; then
2657 missing_languages="${missing_languages} ${missing_language}"
2662 if test "x$missing_languages" != x; then
2664 The following requested languages were not found:${missing_languages}
2665 The following languages were available: c${found_languages}])
2668 # Make gthr-default.h if we have a thread file.
2670 if test $thread_file != single; then
2671 rm -f gthr-default.h
2672 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2673 gthread_flags=-DHAVE_GTHR_DEFAULT
2675 AC_SUBST(gthread_flags)
2677 # Find out what GC implementation we want, or may, use.
2679 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2686 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2691 echo "Using $GGC for garbage collection."
2693 # Use the system's zlib library.
2695 zlibinc="-I\$(srcdir)/../zlib"
2696 AC_ARG_WITH(system-zlib,
2697 [ --with-system-zlib use installed libz],
2704 dnl Very limited version of automake's enable-maintainer-mode
2706 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2707 dnl maintainer-mode is disabled by default
2708 AC_ARG_ENABLE(maintainer-mode,
2709 [ --enable-maintainer-mode
2710 enable make rules and dependencies not useful
2711 (and sometimes confusing) to the casual installer],
2712 maintainer_mode=$enableval,
2715 AC_MSG_RESULT($maintainer_mode)
2717 if test "$maintainer_mode" = "yes"; then
2724 # Make empty files to contain the specs and options for each language.
2725 # Then add #include lines to for a compiler that has specs and/or options.
2730 for subdir in . $subdirs
2732 if test -f $srcdir/$subdir/lang.opt; then
2733 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2735 if test -f $srcdir/$subdir/lang-specs.h; then
2736 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2738 if test -f $srcdir/$subdir/$subdir-tree.def; then
2739 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2743 # These (without "all_") are set in each config-lang.in.
2744 # `language' must be a single word so is spelled singularly.
2749 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2750 # List of language makefile fragments.
2752 # List of language subdirectory makefiles. Deprecated.
2754 # Files for gengtype
2755 all_gtfiles="$target_gtfiles"
2756 # Files for gengtype with language
2757 all_gtfiles_files_langs=
2758 all_gtfiles_files_files=
2760 # Add the language fragments.
2761 # Languages are added via two mechanisms. Some information must be
2762 # recorded in makefile variables, these are defined in config-lang.in.
2763 # We accumulate them and plug them into the main Makefile.
2764 # The other mechanism is a set of hooks for each of the main targets
2765 # like `clean', `install', etc.
2767 language_hooks="Make-hooks"
2777 . ${srcdir}/$s/config-lang.in
2778 if test "x$language" = x
2780 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2783 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2784 if test -f ${srcdir}/$s/Makefile.in
2785 then all_lang_makefiles="$s/Makefile"
2787 all_languages="$all_languages $language"
2788 if test "x$boot_language" = xyes
2790 all_boot_languages="$all_boot_languages $language"
2792 all_compilers="$all_compilers $compilers"
2793 all_stagestuff="$all_stagestuff $stagestuff"
2794 all_outputs="$all_outputs $outputs"
2795 all_gtfiles="$all_gtfiles $gtfiles"
2798 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2799 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2803 # Pick up gtfiles for c
2806 . ${srcdir}/c-config-lang.in
2807 all_gtfiles="$all_gtfiles $gtfiles"
2810 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2811 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2815 for language in $all_languages
2817 check_languages="$check_languages check-$language"
2820 # Since we can't use `::' targets, we link each language in
2821 # with a set of hooks, reached indirectly via lang.${target}.
2825 target_list="all.build all.cross start.encap rest.encap tags \
2826 info dvi generated-manpages \
2827 install-normal install-common install-info install-man \
2829 mostlyclean clean distclean extraclean maintainer-clean \
2830 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2831 for t in $target_list
2834 for lang in $all_languages
2838 echo "lang.$t: $x" >> Make-hooks
2843 echo "dir ." > .gdbinit
2844 echo "dir ${srcdir}" >> .gdbinit
2845 if test x$gdb_needs_out_file_path = xyes
2847 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2849 if test "x$subdirs" != x; then
2852 echo "dir ${srcdir}/$s" >> .gdbinit
2855 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2857 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2858 # absolute path for gcc_tooldir based on inserting the number of up-directory
2859 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2860 # $(libsubdir)/@(unlibsubdir) based path.
2861 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2862 # make and thus we'd get different behavior depending on where we built the
2864 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2865 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2867 changequote(<<, >>)dnl
2868 # An explanation of the sed strings:
2869 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2870 # -e 's|/$||' match a trailing forward slash and eliminates it
2871 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2872 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2874 # (*) Note this pattern overwrites the first character of the string
2875 # with a forward slash if one is not already present. This is not a
2876 # problem because the exact names of the sub-directories concerned is
2877 # unimportant, just the number of them matters.
2879 # The practical upshot of these patterns is like this:
2881 # prefix exec_prefix result
2882 # ------ ----------- ------
2884 # /foo/ /foo/bar ../
2885 # /foo /foo/bar/ ../
2886 # /foo/ /foo/bar/ ../
2887 # /foo /foo/bar/ugg ../../
2890 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2891 changequote([, ])dnl
2893 AC_SUBST(gcc_tooldir)
2896 # Find a directory in which to install a shared libgcc.
2898 AC_ARG_ENABLE(version-specific-runtime-libs,
2899 [ --enable-version-specific-runtime-libs
2900 specify that runtime libraries should be
2901 installed in a compiler-specific directory])
2903 AC_ARG_WITH(slibdir,
2904 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2905 slibdir="$with_slibdir",
2906 if test "${enable_version_specific_runtime_libs+set}" = set; then
2907 slibdir='$(libsubdir)'
2908 elif test "$host" != "$target"; then
2909 slibdir='$(build_tooldir)/lib'
2915 objdir=`${PWDCMD-pwd}`
2918 # Substitute configuration variables
2921 AC_SUBST(all_boot_languages)
2922 AC_SUBST(all_compilers)
2923 AC_SUBST(all_gtfiles)
2924 AC_SUBST(all_gtfiles_files_langs)
2925 AC_SUBST(all_gtfiles_files_files)
2926 AC_SUBST(all_lang_makefrags)
2927 AC_SUBST(all_lang_makefiles)
2928 AC_SUBST(all_languages)
2929 AC_SUBST(all_stagestuff)
2930 AC_SUBST(build_exeext)
2931 AC_SUBST(build_install_headers_dir)
2932 AC_SUBST(build_xm_file_list)
2933 AC_SUBST(build_xm_include_list)
2934 AC_SUBST(build_xm_defines)
2935 AC_SUBST(check_languages)
2936 AC_SUBST(cc_set_by_configure)
2937 AC_SUBST(quoted_cc_set_by_configure)
2938 AC_SUBST(cpp_install_dir)
2939 AC_SUBST(xmake_file)
2940 AC_SUBST(tmake_file)
2941 AC_SUBST(extra_headers_list)
2942 AC_SUBST(extra_objs)
2943 AC_SUBST(extra_parts)
2944 AC_SUBST(extra_passes)
2945 AC_SUBST(extra_programs)
2946 AC_SUBST(float_h_file)
2947 AC_SUBST(gcc_config_arguments)
2948 AC_SUBST(gcc_gxx_include_dir)
2949 AC_SUBST(libstdcxx_incdir)
2950 AC_SUBST(gcc_version)
2951 AC_SUBST(gcc_version_full)
2952 AC_SUBST(gcc_version_trigger)
2953 AC_SUBST(host_exeext)
2954 AC_SUBST(host_extra_gcc_objs)
2955 AC_SUBST(host_xm_file_list)
2956 AC_SUBST(host_xm_include_list)
2957 AC_SUBST(host_xm_defines)
2958 AC_SUBST(out_host_hook_obj)
2960 AC_SUBST(lang_opt_files)
2961 AC_SUBST(lang_specs_files)
2962 AC_SUBST(lang_tree_files)
2963 AC_SUBST(local_prefix)
2965 AC_SUBST(objc_boehm_gc)
2967 AC_SUBST(out_object_file)
2968 AC_SUBST(stage_prefix_set_by_configure)
2969 AC_SUBST(quoted_stage_prefix_set_by_configure)
2970 AC_SUBST(symbolic_link)
2971 AC_SUBST(thread_file)
2972 AC_SUBST(tm_file_list)
2973 AC_SUBST(tm_include_list)
2974 AC_SUBST(tm_defines)
2975 AC_SUBST(tm_p_file_list)
2976 AC_SUBST(tm_p_include_list)
2977 AC_SUBST(xm_file_list)
2978 AC_SUBST(xm_include_list)
2979 AC_SUBST(xm_defines)
2980 AC_SUBST(target_alias)
2981 AC_SUBST(c_target_objs)
2982 AC_SUBST(cxx_target_objs)
2983 AC_SUBST(target_cpu_default)
2985 AC_SUBST_FILE(language_hooks)
2987 # Echo that links are built
2988 if test x$host = x$target
2996 if test x$host != x$build
2998 str3=" on a $build system"
3001 if test "x$str2" != x || test "x$str3" != x
3006 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3008 if test "x$str2" != x || test "x$str3" != x
3010 echo " ${str2}${str3}." 1>&2
3013 # Configure the subdirectories
3014 # AC_CONFIG_SUBDIRS($subdirs)
3016 # Create the Makefile
3017 # and configure language subdirectories
3018 AC_OUTPUT($all_outputs,
3020 case x$CONFIG_HEADERS in
3021 xauto-host.h:config.in)
3024 # Make sure all the subdirs exist.
3027 test -d $d || mkdir $d
3029 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3030 # bootstrapping and the installation procedure can still use
3031 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3032 # FLAGS_TO_PASS has been modified to solve the problem there.
3033 # This is virtually a duplicate of what happens in configure.lang; we do
3034 # an extra check to make sure this only happens if ln -s can be used.
3035 if test "$symbolic_link" = "ln -s"; then
3036 for d in ${subdirs} fixinc ; do
3037 STARTDIR=`${PWDCMD-pwd}`
3039 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3042 $symbolic_link ../$t $t 2>/dev/null
3049 symbolic_link='$symbolic_link'