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, $sjlj,
942 [Define 0/1 to force the choice for exception handling model.])])
944 if test x$host = x$target; then
945 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
947 use_libunwind_default=no
949 # Use libunwind based exception handling.
950 AC_ARG_ENABLE(libunwind-exceptions,
951 [ --enable-libunwind-exceptions force use libunwind for exceptions],
952 use_libunwind_exceptions=$enableval,
953 use_libunwind_exceptions=$use_libunwind_default)
954 if test x"$use_libunwind_exceptions" = xyes; then
955 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
956 [Define if gcc should use -lunwind.])
959 # --------------------------------------------------------
960 # Build, host, and target specific configuration fragments
961 # --------------------------------------------------------
963 # Collect build-machine-specific information.
964 . ${srcdir}/config.build
966 # Collect host-machine-specific information.
967 . ${srcdir}/config.host
971 # Collect target-machine-specific information.
972 . ${srcdir}/config.gcc
974 extra_objs="${host_extra_objs} ${extra_objs}"
976 # Default the target-machine variables that were not explicitly set.
977 if test x"$tm_file" = x
978 then tm_file=$cpu_type/$cpu_type.h; fi
980 if test x"$extra_headers" = x
981 then extra_headers=; fi
983 if test x$md_file = x
984 then md_file=$cpu_type/$cpu_type.md; fi
986 if test x$out_file = x
987 then out_file=$cpu_type/$cpu_type.c; fi
989 if test x"$tmake_file" = x
990 then tmake_file=$cpu_type/t-$cpu_type
993 if test x"$dwarf2" = xyes
994 then tm_file="$tm_file tm-dwarf2.h"
997 # Say what files are being used for the output code and MD file.
998 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
999 echo "Using \`$srcdir/config/$md_file' as machine description file."
1001 # If any of the xm_file variables contain nonexistent files, warn
1002 # about them and drop them.
1005 for x in $build_xm_file; do
1006 if test -f $srcdir/config/$x
1008 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1014 for x in $host_xm_file; do
1015 if test -f $srcdir/config/$x
1017 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1023 for x in $xm_file; do
1024 if test -f $srcdir/config/$x
1026 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1032 for f in $tm_file; do
1035 if test $count = ax; then
1036 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1038 echo "Using the following target machine macro files:"
1039 for f in $tm_file; do
1040 echo " $srcdir/config/$f"
1044 if test x$need_64bit_hwint = xyes; then
1045 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1046 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1050 for f in $host_xm_file; do
1053 if test $count = a; then
1055 elif test $count = ax; then
1056 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1058 echo "Using the following host machine macro files:"
1059 for f in $host_xm_file; do
1060 echo " $srcdir/config/$f"
1063 echo "Using ${out_host_hook_obj} for host machine hooks."
1065 if test "$host_xm_file" != "$build_xm_file"; then
1067 for f in $build_xm_file; do
1070 if test $count = a; then
1072 elif test $count = ax; then
1073 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1075 echo "Using the following build machine macro files:"
1076 for f in $build_xm_file; do
1077 echo " $srcdir/config/$f"
1082 if test x$thread_file = x; then
1083 if test x$target_thread_file != x; then
1084 thread_file=$target_thread_file
1086 thread_file='single'
1090 if test x$enable___cxa_atexit = xyes || \
1091 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1092 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1093 [Define if you want to use __cxa_atexit, rather than atexit, to
1094 register C++ destructors for local statics and global objects.
1095 This is essential for fully standards-compliant handling of
1096 destructors, but requires __cxa_atexit in libc.])
1099 # Look for a file containing extra machine modes.
1100 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1101 extra_modes_file='$(srcdir)'/config/${extra_modes}
1102 AC_SUBST(extra_modes_file)
1103 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1104 [Define to the name of a file containing a list of extra machine modes
1105 for this architecture.])
1106 AC_DEFINE(EXTRA_CC_MODES, 1,
1107 [Define if the target architecture needs extra machine modes to represent
1108 the results of comparisons.])
1111 # auto-host.h is the file containing items generated by autoconf and is
1112 # the first file included by config.h.
1113 # If host=build, it is correct to have bconfig include auto-host.h
1114 # as well. If host!=build, we are in error and need to do more
1115 # work to find out the build config parameters.
1116 if test x$host = x$build
1118 build_auto=auto-host.h
1121 # We create a subdir, then run autoconf in the subdir.
1122 # To prevent recursion we set host and build for the new
1123 # invocation of configure to the build for this invocation
1130 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1131 *) realsrcdir=../${srcdir};;
1133 saved_CFLAGS="${CFLAGS}"
1134 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1135 ${realsrcdir}/configure \
1136 --target=$target_alias --host=$build_alias --build=$build_alias
1137 CFLAGS="${saved_CFLAGS}"
1139 # We just finished tests for the build machine, so rename
1140 # the file auto-build.h in the gcc directory.
1141 mv auto-host.h ../auto-build.h
1144 build_auto=auto-build.h
1145 FORBUILD=../${build_subdir}
1149 tm_file="${tm_file} defaults.h"
1150 tm_p_file="${tm_p_file} tm-preds.h"
1151 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1152 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1153 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1154 # put this back in temporarily.
1155 xm_file="ansidecl.h ${xm_file}"
1161 # Get the version trigger filename from the toplevel
1162 if test "${with_gcc_version_trigger+set}" = set; then
1163 gcc_version_trigger=$with_gcc_version_trigger
1165 gcc_version_trigger=${srcdir}/version.c
1168 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1169 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1171 # Compile in configure arguments.
1172 if test -f configargs.h ; then
1173 # Being re-configured.
1174 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1175 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1177 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1180 # Double all backslashes and backslash all quotes to turn
1181 # gcc_config_arguments into a C string.
1182 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1183 $gcc_config_arguments
1185 gcc_config_arguments_str=`cat conftest.out`
1188 cat > configargs.h <<EOF
1189 /* Generated automatically. */
1190 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1191 static const char thread_model[] = "$thread_file";
1193 static const struct {
1194 const char *name, *value;
1195 } configure_default_options[] = $configure_default_options;
1199 # Internationalization
1201 VERSION="$gcc_version"
1205 ZW_GNU_GETTEXT_SISTER_DIR
1207 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1208 # -liconv on the link line twice.
1209 case "$LIBINTL" in *$LIBICONV*)
1213 # Windows32 Registry support for specifying GCC installation paths.
1214 AC_ARG_ENABLE(win32-registry,
1215 [ --disable-win32-registry
1216 disable lookup of installation paths in the
1217 Registry on Windows hosts
1218 --enable-win32-registry enable registry lookup (default)
1219 --enable-win32-registry=KEY
1220 use KEY instead of GCC version as the last portion
1221 of the registry key],,)
1223 win32 | pe | cygwin* | mingw32* | uwin*)
1224 AC_MSG_CHECKING(whether windows registry support is requested)
1225 if test "x$enable_win32_registry" != xno; then
1226 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1227 [Define to 1 if installation paths should be looked up in Windows32
1228 Registry. Ignored on non windows32 hosts.])
1230 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1235 # Check if user specified a different registry key.
1236 case "x${enable_win32_registry}" in
1239 gcc_cv_win32_registry_key="$VERSION"
1242 # no registry lookup.
1243 gcc_cv_win32_registry_key=''
1246 # user-specified key.
1247 gcc_cv_win32_registry_key="$enable_win32_registry"
1251 if test "x$enable_win32_registry" != xno; then
1252 AC_MSG_CHECKING(registry key on windows hosts)
1253 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1254 [Define to be the last portion of registry key on windows hosts.])
1255 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1260 # Get an absolute path to the GCC top-level source directory
1261 holddir=`${PWDCMD-pwd}`
1263 topdir=`${PWDCMD-pwd}`
1266 # Conditionalize the makefile for this host machine.
1268 for f in ${host_xmake_file}
1270 if test -f ${srcdir}/config/$f
1272 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1276 # Conditionalize the makefile for this target machine.
1278 for f in ${tmake_file}
1280 if test -f ${srcdir}/config/$f
1282 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1285 tmake_file="${tmake_file_}"
1287 symbolic_link='ln -s'
1289 # If the host doesn't support symlinks, modify CC in
1290 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1291 # Otherwise, we can use "CC=$(CC)".
1293 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1295 cc_set_by_configure="\$(CC)"
1296 quoted_cc_set_by_configure="\$(CC)"
1297 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1298 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1301 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1303 symbolic_link="cp -p"
1307 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1308 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1309 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1310 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1314 out_object_file=`basename $out_file .c`.o
1318 for f in $tm_file; do
1321 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1322 tm_include_list="${tm_include_list} $f"
1325 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1326 tm_include_list="${tm_include_list} config/$f"
1333 for f in $tm_p_file; do
1336 tm_p_file_list="${tm_p_file_list} $f"
1337 tm_p_include_list="${tm_p_include_list} $f"
1340 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1341 tm_p_include_list="${tm_p_include_list} config/$f"
1347 for f in $xm_file; do
1350 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1351 xm_include_list="${xm_include_list} $f"
1354 xm_file_list="${xm_file_list} $f"
1355 xm_include_list="${xm_include_list} $f"
1358 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1359 xm_include_list="${xm_include_list} config/$f"
1365 host_xm_include_list=
1366 for f in $host_xm_file; do
1369 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1370 host_xm_include_list="${host_xm_include_list} $f"
1373 host_xm_file_list="${host_xm_file_list} $f"
1374 host_xm_include_list="${host_xm_include_list} $f"
1377 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1378 host_xm_include_list="${host_xm_include_list} config/$f"
1384 for f in $build_xm_file; do
1387 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1388 build_xm_include_list="${build_xm_include_list} $f"
1390 auto-build.h | auto-host.h )
1391 build_xm_file_list="${build_xm_file_list} $f"
1392 build_xm_include_list="${build_xm_include_list} $f"
1395 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1396 build_xm_include_list="${build_xm_include_list} config/$f"
1401 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1402 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1403 CROSS= AC_SUBST(CROSS)
1404 ALL=all.internal AC_SUBST(ALL)
1405 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1406 if test x$host != x$target
1408 CROSS="-DCROSS_COMPILE"
1410 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1411 case "$host","$target" in
1412 # Darwin crosses can use the host system's libraries and headers,
1413 # because of the fat library support. Of course, it must be the
1414 # same version of Darwin on both sides. Allow the user to
1415 # just say --target=foo-darwin without a version number to mean
1416 # "the version on this system".
1417 *-*-darwin*,*-*-darwin*)
1418 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1419 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1420 if test $hostos = $targetos -o $targetos = darwin ; then
1422 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1427 i?86-*-*,x86_64-*-* \
1428 | powerpc*-*-*,powerpc64*-*-*)
1429 CROSS="$CROSS -DNATIVE_CROSS" ;;
1431 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1432 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1433 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1436 # If this is a cross-compiler that does not
1437 # have its own set of headers then define
1440 # If this is using newlib, without having the headers available now,
1441 # then define inhibit_libc in LIBGCC2_CFLAGS.
1442 # This prevents libgcc2 from containing any code which requires libc
1445 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1446 test x$with_newlib = xyes ; } &&
1447 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1448 inhibit_libc=-Dinhibit_libc
1450 AC_SUBST(inhibit_libc)
1452 # When building gcc with a cross-compiler, we need to adjust things so
1453 # that the generator programs are still built with the native compiler.
1454 # Also, we cannot run fixincludes or fix-header.
1456 # These are the normal (build=host) settings:
1457 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1458 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1459 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1460 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1462 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1464 # Possibly disable fixproto, on a per-target basis.
1465 case ${use_fixproto} in
1470 STMP_FIXPROTO=stmp-fixproto
1473 AC_SUBST(STMP_FIXPROTO)
1475 # And these apply if build != host, or we are generating coverage data
1476 if test x$build != x$host || test "x$coverage_flags" != x
1479 BUILD_PREFIX_1=build-
1480 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1482 if test "x$TARGET_SYSTEM_ROOT" = x; then
1488 # Expand extra_headers to include complete path.
1489 # This substitutes for lots of t-* files.
1491 if test "x$extra_headers" = x
1494 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1495 for file in $extra_headers;
1497 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1501 # Add a definition of USE_COLLECT2 if system wants one.
1502 case $use_collect2 in
1503 no) use_collect2= ;;
1506 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1507 xm_defines="${xm_defines} USE_COLLECT2"
1511 # Identify the assembler which will work hand-in-glove with the newly
1512 # built GCC, so that we can examine its features. This is the assembler
1513 # which will be driven by the driver program.
1515 # If build != host, and we aren't building gas in-tree, we identify a
1516 # build->target assembler and hope that it will have the same features
1517 # as the host->target assembler we'll be using.
1518 AC_MSG_CHECKING(what assembler to use)
1521 gcc_cv_gas_major_version=
1522 gcc_cv_gas_minor_version=
1523 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1524 if test -x "$DEFAULT_ASSEMBLER"; then
1525 gcc_cv_as="$DEFAULT_ASSEMBLER"
1526 elif test -x "$AS"; then
1528 elif test -x as$host_exeext; then
1529 # Build using assembler in the current directory.
1530 gcc_cv_as=./as$host_exeext
1531 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1532 && test -f ../gas/Makefile; then
1533 # Single tree build which includes gas.
1535 _gcc_COMPUTE_GAS_VERSION
1536 rm -f as$host_exeext
1537 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1538 in_tree_gas_is_elf=no
1539 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1540 || (grep 'obj_format = multi' ../gas/Makefile \
1541 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1543 in_tree_gas_is_elf=yes
1547 if test "x$gcc_cv_as" = x; then
1548 # Search the same directories that the installed compiler will
1549 # search. Else we may find the wrong assembler and lose. If we
1550 # do not find a suitable assembler binary, then try the user's
1553 # Also note we have to check MD_EXEC_PREFIX before checking the
1554 # user's path. Unfortunately, there is no good way to get at the
1555 # value of MD_EXEC_PREFIX here. So we do a brute force search
1556 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1557 # to be fixed as part of the make/configure rewrite too.
1559 if test "x$exec_prefix" = xNONE; then
1560 if test "x$prefix" = xNONE; then
1561 test_prefix=/usr/local
1566 test_prefix=$exec_prefix
1569 # If the loop below does not find an assembler, then use whatever
1570 # one we can find in the users's path.
1572 if test "x$program_prefix" != xNONE; then
1573 gcc_cv_as=${program_prefix}as$host_exeext
1575 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1578 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1579 $test_prefix/lib/gcc-lib/$target_alias \
1580 /usr/lib/gcc/$target_alias/$gcc_version \
1581 /usr/lib/gcc/$target_alias \
1582 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1583 $test_prefix/$target_alias/bin"
1585 if test x$host = x$target; then
1586 test_dirs="$test_dirs \
1591 /bsd43/usr/lib/cmplrs/cc \
1592 /usr/cross64/usr/bin \
1593 /usr/lib/cmplrs/cc \
1594 /sysv/usr/lib/cmplrs/cc \
1595 /svr4/usr/lib/cmplrs/cc \
1599 for dir in $test_dirs; do
1600 if test -x $dir/as$host_exeext; then
1601 gcc_cv_as=$dir/as$host_exeext
1606 case $in_tree_gas in
1608 AC_MSG_RESULT("newly built gas")
1611 AC_MSG_RESULT($gcc_cv_as)
1615 # Identify the linker which will work hand-in-glove with the newly
1616 # built GCC, so that we can examine its features. This is the linker
1617 # which will be driven by the driver program.
1619 # If build != host, and we aren't building gas in-tree, we identify a
1620 # build->target linker and hope that it will have the same features
1621 # as the host->target linker we'll be using.
1622 AC_MSG_CHECKING(what linker to use)
1625 gcc_cv_gld_major_version=
1626 gcc_cv_gld_minor_version=
1627 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1628 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1629 if test -x "$DEFAULT_LINKER"; then
1630 gcc_cv_ld="$DEFAULT_LINKER"
1631 elif test -x "$LD"; then
1633 elif test -x collect-ld$host_exeext; then
1634 # Build using linker in the current directory.
1635 gcc_cv_ld=./collect-ld$host_exeext
1636 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1637 && test -f ../ld/Makefile; then
1638 # Single tree build which includes ld.
1640 in_tree_ld_is_elf=no
1641 if (grep 'EMUL = .*elf' ../ld/Makefile \
1642 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1643 in_tree_ld_is_elf=yes
1645 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
1648 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1650 if test x$gcc_cv_gld_version != x; then
1655 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1656 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1658 rm -f collect-ld$host_exeext
1659 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1663 if test "x$gcc_cv_ld" = x; then
1664 # Search the same directories that the installed compiler will
1665 # search. Else we may find the wrong linker and lose. If we
1666 # do not find a suitable linker binary, then try the user's
1669 # Also note we have to check MD_EXEC_PREFIX before checking the
1670 # user's path. Unfortunately, there is no good way to get at the
1671 # value of MD_EXEC_PREFIX here. So we do a brute force search
1672 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1673 # to be fixed as part of the make/configure rewrite too.
1675 if test "x$exec_prefix" = xNONE; then
1676 if test "x$prefix" = xNONE; then
1677 test_prefix=/usr/local
1682 test_prefix=$exec_prefix
1685 # If the loop below does not find an linker, then use whatever
1686 # one we can find in the users's path.
1688 if test "x$program_prefix" != xNONE; then
1689 gcc_cv_ld=${program_prefix}ld$host_exeext
1691 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1694 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1695 $test_prefix/lib/gcc-lib/$target_alias \
1696 /usr/lib/gcc/$target_alias/$gcc_version \
1697 /usr/lib/gcc/$target_alias \
1698 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1699 $test_prefix/$target_alias/bin"
1701 if test x$host = x$target; then
1702 test_dirs="$test_dirs \
1707 /bsd43/usr/lib/cmplrs/cc \
1708 /usr/cross64/usr/bin \
1709 /usr/lib/cmplrs/cc \
1710 /sysv/usr/lib/cmplrs/cc \
1711 /svr4/usr/lib/cmplrs/cc \
1715 for dir in $test_dirs; do
1716 if test -x $dir/ld$host_exeext; then
1717 gcc_cv_ld=$dir/ld$host_exeext
1724 AC_MSG_RESULT("newly built ld")
1727 AC_MSG_RESULT($gcc_cv_ld)
1731 # Figure out what nm we will be using.
1732 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1733 AC_MSG_CHECKING(what nm to use)
1735 if test -x nm$host_exeext; then
1736 gcc_cv_nm=./nm$host_exeext
1737 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1738 && test -f ../binutils/Makefile; then
1739 # Single tree build which includes binutils.
1741 gcc_cv_nm=./nm$host_exeext
1742 rm -f nm$host_exeext
1743 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1744 elif test "x$program_prefix" != xNONE; then
1745 gcc_cv_nm=${program_prefix}nm$host_exeext
1747 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1750 yes) AC_MSG_RESULT("newly built nm") ;;
1751 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1754 # Figure out what objdump we will be using.
1755 AC_MSG_CHECKING(what objdump to use)
1757 if test -x objdump$host_exeext; then
1758 gcc_cv_objdump=./objdump$host_exeext
1759 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1760 && test -f ../binutils/Makefile; then
1761 # Single tree build which includes binutils.
1763 gcc_cv_objdump=./objdump$host_exeext
1764 rm -f objdump$host_exeext
1765 $symbolic_link ../binutils/objdump$host_exeext \
1766 objdump$host_exeext 2>/dev/null
1767 elif test "x$program_prefix" != xNONE; then
1768 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1770 gcc_cv_objdump=`echo objdump | \
1771 sed ${program_transform_name}`$host_exeext
1773 case $in_tree_objdump in
1774 yes) AC_MSG_RESULT("newly built objdump") ;;
1775 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1778 # Figure out what assembler alignment features are present.
1779 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1783 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1784 [Define if your assembler supports .balign and .p2align.])])
1786 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1789 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1790 [Define if your assembler supports specifying the maximum number
1791 of bytes to skip when using the GAS .p2align command.])])
1793 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1795 [conftest_label1: .word 0
1797 conftest_label2: .word 0
1799 [if test x$gcc_cv_nm != x; then
1800 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1801 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1802 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1804 else gcc_cv_as_subsection_m1=yes
1806 rm -f conftest.nm1 conftest.nm2
1808 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1809 [Define if your assembler supports .subsection and .subsection -1 starts
1810 emitting at the beginning of your section.])])
1812 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1815 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1817 # .hidden needs to be supported in both the assembler and the linker,
1818 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1819 # This is irritatingly difficult to feature test for; we have to check the
1820 # date string after the version number. If we've got an in-tree
1821 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1823 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1824 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1829 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1830 [if test $in_tree_ld = yes ; then
1832 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1833 && test $in_tree_ld_is_elf = yes; then
1834 gcc_cv_ld_hidden=yes
1837 gcc_cv_ld_hidden=yes
1838 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1839 if echo "$ld_ver" | grep GNU > /dev/null; then
1841 ld_vers=`echo $ld_ver | sed -n \
1842 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1843 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1844 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1845 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1846 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1847 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1848 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1849 if test 0"$ld_date" -lt 20020404; then
1850 if test -n "$ld_date"; then
1851 # If there was date string, but was earlier than 2002-04-04, fail
1853 elif test -z "$ld_vers"; then
1854 # If there was no date string nor ld version number, something is wrong
1857 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1858 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1859 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1860 test -z "$ld_vers_patch" && ld_vers_patch=0
1861 if test "$ld_vers_major" -lt 2; then
1863 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1864 gcc_cv_ld_hidden="no"
1865 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1872 # non-GNU linkers don't seem to support .hidden yet
1876 libgcc_visibility=no
1877 AC_SUBST(libgcc_visibility)
1878 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
1879 libgcc_visibility=yes
1880 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1881 [Define if your assembler and linker support .hidden.])
1884 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1885 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1893 [# GAS versions before 2.11 do not support uleb128,
1894 # despite appearing to.
1895 # ??? There exists an elf-specific test that will crash
1896 # the assembler. Perhaps it's better to figure out whether
1897 # arbitrary sections are supported and try the test.
1898 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
1899 if echo "$as_ver" | grep GNU > /dev/null; then
1901 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1902 as_major=`echo $as_ver | sed 's/\..*//'`
1903 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1905 if test $as_major -eq 2 && test $as_minor -lt 11
1907 else gcc_cv_as_leb128=yes
1910 [AC_DEFINE(HAVE_AS_LEB128, 1,
1911 [Define if your assembler supports .sleb128 and .uleb128.])])
1913 # GAS versions up to and including 2.11.0 may mis-optimize
1915 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
1923 .section .eh_frame,"aw",@progbits
1925 .4byte .LECIE1-.LSCIE1
1939 .4byte .LEFDE1-.LASFDE1
1941 .4byte .LASFDE1-__FRAME_BEGIN__
1949 [ cat > conftest.lit <<EOF
1950 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1951 0010 01000000 12000000 18000000 00000000 ................
1952 0020 08000000 04080000 0044 .........D
1954 cat > conftest.big <<EOF
1955 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1956 0010 00000001 00000012 00000018 00000000 ................
1957 0020 00000008 04000000 0844 .........D
1959 # If the assembler didn't choke, and we can objdump,
1960 # and we got the correct data, then succeed.
1961 if test x$gcc_cv_objdump != x \
1962 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1963 | tail -3 > conftest.got \
1964 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1965 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1967 gcc_cv_as_eh_frame=yes
1968 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
1969 gcc_cv_as_eh_frame=buggy
1971 # Uh oh, what do we do now?
1972 gcc_cv_as_eh_frame=no
1975 if test $gcc_cv_as_eh_frame = buggy; then
1976 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1977 [Define if your assembler mis-optimizes .eh_frame data.])
1980 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
1981 [elf,2,12,0], [--fatal-warnings],
1982 [.section .rodata.str, "aMS", @progbits, 1])
1983 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
1984 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
1985 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
1987 # Thread-local storage - the check is heavily parametrized.
1996 .section ".tdata","awT",@progbits
1999 ldq $27,__tls_get_addr($29) !literal!1
2000 lda $16,foo($29) !tlsgd!1
2001 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2002 ldq $27,__tls_get_addr($29) !literal!2
2003 lda $16,foo($29) !tlsldm!2
2004 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2005 ldq $1,foo($29) !gotdtprel
2006 ldah $2,foo($29) !dtprelhi
2007 lda $3,foo($2) !dtprello
2008 lda $4,foo($29) !dtprel
2009 ldq $1,foo($29) !gottprel
2010 ldah $2,foo($29) !tprelhi
2011 lda $3,foo($2) !tprello
2012 lda $4,foo($29) !tprel'
2018 .section ".tdata","awT",@progbits
2022 leal foo@TLSGD(,%ebx,1), %eax
2023 leal foo@TLSLDM(%ebx), %eax
2024 leal foo@DTPOFF(%eax), %edx
2025 movl foo@GOTTPOFF(%ebx), %eax
2026 subl foo@GOTTPOFF(%ebx), %eax
2027 addl foo@GOTNTPOFF(%ebx), %eax
2028 movl foo@INDNTPOFF, %eax
2029 movl $foo@TPOFF, %eax
2030 subl $foo@TPOFF, %eax
2031 leal foo@NTPOFF(%ecx), %eax'
2037 .section ".tdata","awT",@progbits
2041 leaq foo@TLSGD(%rip), %rdi
2042 leaq foo@TLSLD(%rip), %rdi
2043 leaq foo@DTPOFF(%rax), %rdx
2044 movq foo@GOTTPOFF(%rip), %rax
2045 movq $foo@TPOFF, %rax'
2051 .section ".tdata","awT",@progbits
2054 addl r16 = @ltoff(@dtpmod(foo#)), gp
2055 addl r17 = @ltoff(@dtprel(foo#)), gp
2056 addl r18 = @ltoff(@tprel(foo#)), gp
2057 addl r19 = @dtprel(foo#), gp
2058 adds r21 = @dtprel(foo#), r13
2059 movl r23 = @dtprel(foo#)
2060 addl r20 = @tprel(foo#), gp
2061 adds r22 = @tprel(foo#), r13
2062 movl r24 = @tprel(foo#)'
2068 .section ".tdata","awT",@progbits
2076 addi 3,31,ld0@got@tlsgd
2078 addi 3,31,x1@got@tlsld
2081 addis 9,3,x2@dtprel@ha
2082 addi 9,9,x2@dtprel@l
2083 lwz 9,x3@got@tprel(31)
2086 addis 9,2,x2@tprel@ha
2087 addi 9,9,x2@tprel@l'
2094 .section ".tdata","awT",@progbits
2102 addi 3,2,ld0@got@tlsgd
2108 addi 3,2,x1@got@tlsld
2114 addis 9,3,x2@dtprel@ha
2115 addi 9,9,x2@dtprel@l
2118 ld 9,x3@got@dtprel(2)
2128 .section ".tdata","awT",@progbits
2137 l %r1,foo@GOTNTPOFF(%r12)
2138 l %r1,0(%r1):tls_load:foo
2139 bas %r14,0(%r1,%r13):tls_gdcall:foo
2140 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2147 .section ".tdata","awT",@progbits
2155 lg %r1,foo@GOTNTPOFF(%r12)
2156 larl %r1,foo@INDNTPOFF
2157 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2158 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2161 tls_as_opt="-m64 -Aesame"
2165 .section ".tdata","awT",@progbits
2168 sethi %tgd_hi22(foo), %o0
2169 add %o0, %tgd_lo10(foo), %o1
2170 add %l7, %o1, %o0, %tgd_add(foo)
2171 call __tls_get_addr, %tgd_call(foo)
2172 sethi %tldm_hi22(foo), %l1
2173 add %l1, %tldm_lo10(foo), %l2
2174 add %l7, %l2, %o0, %tldm_add(foo)
2175 call __tls_get_addr, %tldm_call(foo)
2176 sethi %tldo_hix22(foo), %l3
2177 xor %l3, %tldo_lox10(foo), %l4
2178 add %o0, %l4, %l5, %tldo_add(foo)
2179 sethi %tie_hi22(foo), %o3
2180 add %o3, %tie_lo10(foo), %o3
2181 ld [%l7 + %o3], %o2, %tie_ld(foo)
2182 add %g7, %o2, %o4, %tie_add(foo)
2183 sethi %tle_hix22(foo), %l1
2184 xor %l1, %tle_lox10(foo), %o5
2185 ld [%g7 + %o5], %o1'
2192 if test -z "$tls_first_major"; then
2193 : # If we don't have a check, assume no support.
2195 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2196 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt --fatal-warnings],
2198 [AC_DEFINE(HAVE_AS_TLS, 1,
2199 [Define if your assembler supports thread-local storage.])])
2202 # Target-specific assembler checks.
2205 # All TARGET_ABI_OSF targets.
2206 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2207 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2208 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2211 extbl $3, $2, $3 !lituse_bytoff!1
2212 ldq $2, a($29) !literal!1
2213 ldq $4, b($29) !literal!2
2214 ldq_u $3, 0($2) !lituse_base!1
2215 ldq $27, f($29) !literal!5
2216 jsr $26, ($27), f !lituse_jsr!5
2217 ldah $29, 0($26) !gpdisp!3
2218 lda $0, c($29) !gprel
2219 ldah $1, d($29) !gprelhigh
2220 lda $1, d($1) !gprellow
2221 lda $29, 0($29) !gpdisp!3],,
2222 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2223 [Define if your assembler supports explicit relocations.])])
2227 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2228 [.register %g2, #scratch],,
2229 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2230 [Define if your assembler supports .register.])])
2232 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2234 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2235 [Define if your assembler supports -relax option.])])
2237 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2238 gcc_cv_as_sparc_ua_pcrel,,
2246 .uaword %r_disp32(foo)],
2247 [if test x$gcc_cv_ld != x \
2248 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2249 gcc_cv_as_sparc_ua_pcrel=yes
2252 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2253 [Define if your assembler and linker support unaligned PC relative relocs.])
2255 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2256 gcc_cv_as_sparc_ua_pcrel_hidden,,
2261 .uaword %r_disp32(foo)
2262 .byte 0x32, 0x33, 0x34
2267 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2268 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2269 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2270 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2271 if $gcc_cv_objdump -R conftest 2> /dev/null \
2272 | grep 'DISP32' > /dev/null 2>&1; then
2275 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2279 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2280 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2281 ]) # unaligned pcrel relocs
2283 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2284 gcc_cv_as_sparc_offsetable_lo10,,
2287 or %g1, %lo(ab) + 12, %g1
2288 or %g1, %lo(ab + 12), %g1],
2289 [if test x$gcc_cv_objdump != x \
2290 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2291 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2292 gcc_cv_as_offsetable_lo10=yes
2294 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2295 [Define if your assembler supports offsetable %lo().])])
2299 i[34567]86-*-* | x86_64-*-*)
2301 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2302 gcc_cv_as_ix86_filds_fists,
2303 [2,9,0],, [filds mem; fists mem],,
2304 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2305 [Define if your assembler uses the new HImode fild and fist notation.])])
2307 gcc_GAS_CHECK_FEATURE([cmov syntax],
2308 gcc_cv_as_ix86_cmov_sun_syntax,,,
2309 [cmovl.l %edx, %eax],,
2310 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2311 [Define if your assembler supports the Sun syntax for cmov.])])
2313 # This one is used unconditionally by i386.[ch]; it is to be defined
2314 # to 1 if the feature is present, 0 otherwise.
2315 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2316 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2322 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2323 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2324 [Define true if the assembler supports '.long foo@GOTOFF'.])
2328 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2329 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2331 addl r15 = @ltoffx(x#), gp
2333 ld8.mov r16 = [[r15]], x#],,
2334 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2335 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2341 *-*-aix) conftest_s=' .csect .text[PR]';;
2342 *) conftest_s=' .text';;
2344 conftest_s="$conftest_s
2347 gcc_GAS_CHECK_FEATURE([mfcr field support],
2348 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2350 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2351 [Define if your assembler supports mfcr field.])])
2355 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2356 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2357 [ lw $4,%gp_rel(foo)($4)],,
2358 [if test x$target_cpu_default = x
2359 then target_cpu_default=MASK_EXPLICIT_RELOCS
2360 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2365 # ??? Not all targets support dwarf2 debug_line, even within a version
2366 # of gas. Moreover, we need to emit a valid instruction to trigger any
2367 # info to the output file. So, as supported targets are added to gas 2.11,
2368 # add some instruction here to (also) show we expect this might work.
2369 # ??? Once 2.11 is released, probably need to add first known working
2370 # version to the per-target configury.
2372 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2373 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2374 | xstormy16*-*-* | cris-*-*)
2384 if test x"$insn" != x; then
2386 .file 1 \"conftest.s\"
2389 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2390 gcc_cv_as_dwarf2_debug_line,
2391 [elf,2,11,0],, [$conftest_s],
2392 [# ??? This fails with non-gnu grep. Maybe use objdump?
2393 if grep debug_line conftest.o > /dev/null 2>&1; then
2394 gcc_cv_as_dwarf2_debug_line=yes
2397 # The .debug_line file table must be in the exact order that
2398 # we specified the files, since these indices are also used
2399 # by DW_AT_decl_file. Approximate this test by testing if
2400 # the assembler bitches if the same index is assigned twice.
2401 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2402 gcc_cv_as_dwarf2_file_buggy,,,
2406 if test $gcc_cv_as_dwarf2_debug_line = yes \
2407 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2408 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2409 [Define if your assembler supports dwarf2 .file/.loc directives,
2410 and preserves file table indices exactly as given.])
2413 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2414 gcc_cv_as_gdwarf2_flag,
2415 [elf,2,11,0], [--gdwarf2], [$insn],,
2416 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2417 [Define if your assembler supports the --gdwarf2 option.])])
2419 gcc_GAS_CHECK_FEATURE([--gstabs option],
2420 gcc_cv_as_gstabs_flag,
2421 [elf,2,11,0], [--gstabs], [$insn],
2422 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2423 # and warns about it, but still exits successfully. So check for
2425 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2427 else gcc_cv_as_gstabs_flag=yes
2429 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2430 [Define if your assembler supports the --gstabs option.])])
2433 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2434 gcc_cv_ld_ro_rw_mix=unknown
2435 if test $in_tree_ld = yes ; then
2436 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2437 && test $in_tree_ld_is_elf = yes; then
2438 gcc_cv_ld_ro_rw_mix=read-write
2440 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2441 echo '.section myfoosect, "a"' > conftest1.s
2442 echo '.section myfoosect, "aw"' > conftest2.s
2443 echo '.byte 1' >> conftest2.s
2444 echo '.section myfoosect, "a"' > conftest3.s
2445 echo '.byte 0' >> conftest3.s
2446 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2447 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2448 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2449 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2450 conftest2.o conftest3.o > /dev/null 2>&1; then
2451 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2452 | sed -e '/myfoosect/!d' -e N`
2453 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2454 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2455 gcc_cv_ld_ro_rw_mix=read-only
2457 gcc_cv_ld_ro_rw_mix=read-write
2462 rm -f conftest.* conftest[123].*
2465 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2466 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2467 [Define if your linker links a mix of read-only
2468 and read-write sections into a read-write section.])
2470 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2472 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2473 gcc_cv_ld_eh_frame_hdr=no
2474 if test $in_tree_ld = yes ; then
2475 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2476 && test $in_tree_ld_is_elf = yes; then
2477 gcc_cv_ld_eh_frame_hdr=yes
2479 elif test x$gcc_cv_ld != x; then
2480 # Check if linker supports --eh-frame-hdr option
2481 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2482 gcc_cv_ld_eh_frame_hdr=yes
2485 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2486 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2487 [Define if your linker supports --eh-frame-hdr option.])
2489 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2491 AC_MSG_CHECKING(linker position independent executable support)
2493 if test $in_tree_ld = yes ; then
2494 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2495 && test $in_tree_ld_is_elf = yes; then
2498 elif test x$gcc_cv_ld != x; then
2499 # Check if linker supports -pie option
2500 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2504 if test x"$gcc_cv_ld_pie" = xyes; then
2505 AC_DEFINE(HAVE_LD_PIE, 1,
2506 [Define if your linker supports -pie option.])
2508 AC_MSG_RESULT($gcc_cv_ld_pie)
2510 # Miscellaneous target-specific checks.
2513 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2514 gcc_cv_mips_libgloss_startup=no
2515 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2516 if test "x$exec_prefix" = xNONE; then
2517 if test "x$prefix" = xNONE; then
2518 test_prefix=/usr/local
2523 test_prefix=$exec_prefix
2525 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2527 if grep '^STARTUP' $f > /dev/null 2>&1; then
2528 gcc_cv_mips_libgloss_startup=yes
2532 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2533 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2534 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2536 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2540 if test x$with_sysroot = x && test x$host = x$target \
2541 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2542 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2543 [Define to PREFIX/include if cpp should also search that directory.])
2546 # Figure out what language subdirectories are present.
2547 # Look if the user specified --enable-languages="..."; if not, use
2548 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2550 # NB: embedded tabs in this IF block -- do not untabify
2551 if test x"${enable_languages+set}" != xset; then
2552 if test x"${LANGUAGES+set}" = xset; then
2553 enable_languages="${LANGUAGES}"
2554 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2557 enable_languages=all
2560 if test x"${enable_languages}" = x \
2561 || test x"${enable_languages}" = xyes;
2563 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2566 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2568 # First scan to see if an enabled language requires some other language.
2569 # We assume that a given config-lang.in will list all the language
2570 # front ends it requires, even if some are required indirectly.
2571 for lang in ${srcdir}/*/config-lang.in
2574 # The odd quoting in the next line works around
2575 # an apparent bug in bash 1.12 on linux.
2577 ${srcdir}/[*]/config-lang.in)
2580 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2581 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2582 for other in $this_lang_requires
2584 case ,${enable_languages}, in
2590 enable_languages="$enable_languages,$other"
2599 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2602 for lang in ${srcdir}/*/config-lang.in
2605 # The odd quoting in the next line works around
2606 # an apparent bug in bash 1.12 on linux.
2608 ${srcdir}/[*]/config-lang.in) ;;
2610 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2611 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2612 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2613 if test "x$lang_alias" = x
2615 echo "$lang doesn't set \$language." 1>&2
2618 case ${build_by_default},${enable_languages}, in
2619 *,$lang_alias,*) add_this_lang=yes ;;
2620 no,*) add_this_lang=no ;;
2621 *,all,*) add_this_lang=yes ;;
2622 *) add_this_lang=no ;;
2624 found_languages="${found_languages} ${lang_alias}"
2625 if test x"${add_this_lang}" = xyes; then
2627 ${srcdir}/ada/config-lang.in)
2628 if test x$have_gnat = xyes ; then
2629 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2633 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2643 for expected_language in ${expected_languages} ..
2645 if test "${expected_language}" != ..; then
2646 missing_language="${expected_language}"
2647 if test "${expected_language}" = "c" \
2648 || test "${expected_language}" = "all"; then
2651 for found_language in ${found_languages} ..
2653 if test "${found_language}" != ..; then
2654 if test "${expected_language}" = "${found_language}"; then
2659 if test "x${missing_language}" != x; then
2660 missing_languages="${missing_languages} ${missing_language}"
2665 if test "x$missing_languages" != x; then
2667 The following requested languages were not found:${missing_languages}
2668 The following languages were available: c${found_languages}])
2671 # Make gthr-default.h if we have a thread file.
2673 if test $thread_file != single; then
2674 rm -f gthr-default.h
2675 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2676 gthread_flags=-DHAVE_GTHR_DEFAULT
2678 AC_SUBST(gthread_flags)
2680 # Find out what GC implementation we want, or may, use.
2682 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2689 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2694 echo "Using $GGC for garbage collection."
2696 # Use the system's zlib library.
2698 zlibinc="-I\$(srcdir)/../zlib"
2699 AC_ARG_WITH(system-zlib,
2700 [ --with-system-zlib use installed libz],
2707 dnl Very limited version of automake's enable-maintainer-mode
2709 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2710 dnl maintainer-mode is disabled by default
2711 AC_ARG_ENABLE(maintainer-mode,
2712 [ --enable-maintainer-mode
2713 enable make rules and dependencies not useful
2714 (and sometimes confusing) to the casual installer],
2715 maintainer_mode=$enableval,
2718 AC_MSG_RESULT($maintainer_mode)
2720 if test "$maintainer_mode" = "yes"; then
2727 # Make empty files to contain the specs and options for each language.
2728 # Then add #include lines to for a compiler that has specs and/or options.
2733 for subdir in . $subdirs
2735 if test -f $srcdir/$subdir/lang.opt; then
2736 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2738 if test -f $srcdir/$subdir/lang-specs.h; then
2739 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2741 if test -f $srcdir/$subdir/$subdir-tree.def; then
2742 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2746 # These (without "all_") are set in each config-lang.in.
2747 # `language' must be a single word so is spelled singularly.
2752 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2753 # List of language makefile fragments.
2755 # List of language subdirectory makefiles. Deprecated.
2757 # Files for gengtype
2758 all_gtfiles="$target_gtfiles"
2759 # Files for gengtype with language
2760 all_gtfiles_files_langs=
2761 all_gtfiles_files_files=
2763 # Add the language fragments.
2764 # Languages are added via two mechanisms. Some information must be
2765 # recorded in makefile variables, these are defined in config-lang.in.
2766 # We accumulate them and plug them into the main Makefile.
2767 # The other mechanism is a set of hooks for each of the main targets
2768 # like `clean', `install', etc.
2770 language_hooks="Make-hooks"
2780 . ${srcdir}/$s/config-lang.in
2781 if test "x$language" = x
2783 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2786 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2787 if test -f ${srcdir}/$s/Makefile.in
2788 then all_lang_makefiles="$s/Makefile"
2790 all_languages="$all_languages $language"
2791 if test "x$boot_language" = xyes
2793 all_boot_languages="$all_boot_languages $language"
2795 all_compilers="$all_compilers $compilers"
2796 all_stagestuff="$all_stagestuff $stagestuff"
2797 all_outputs="$all_outputs $outputs"
2798 all_gtfiles="$all_gtfiles $gtfiles"
2801 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2802 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2806 # Pick up gtfiles for c
2809 . ${srcdir}/c-config-lang.in
2810 all_gtfiles="$all_gtfiles $gtfiles"
2813 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2814 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2818 for language in $all_languages
2820 check_languages="$check_languages check-$language"
2823 # We link each language in with a set of hooks, reached indirectly via
2828 target_list="all.build all.cross start.encap rest.encap tags \
2829 install-normal install-common install-info install-man \
2831 mostlyclean clean distclean extraclean maintainer-clean \
2832 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2833 for t in $target_list
2836 for lang in $all_languages
2840 echo "lang.$t: $x" >> Make-hooks
2845 echo "dir ." > .gdbinit
2846 echo "dir ${srcdir}" >> .gdbinit
2847 if test x$gdb_needs_out_file_path = xyes
2849 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2851 if test "x$subdirs" != x; then
2854 echo "dir ${srcdir}/$s" >> .gdbinit
2857 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2859 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2860 # absolute path for gcc_tooldir based on inserting the number of up-directory
2861 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2862 # $(libsubdir)/@(unlibsubdir) based path.
2863 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2864 # make and thus we'd get different behavior depending on where we built the
2866 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2867 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2869 changequote(<<, >>)dnl
2870 # An explanation of the sed strings:
2871 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2872 # -e 's|/$||' match a trailing forward slash and eliminates it
2873 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2874 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2876 # (*) Note this pattern overwrites the first character of the string
2877 # with a forward slash if one is not already present. This is not a
2878 # problem because the exact names of the sub-directories concerned is
2879 # unimportant, just the number of them matters.
2881 # The practical upshot of these patterns is like this:
2883 # prefix exec_prefix result
2884 # ------ ----------- ------
2886 # /foo/ /foo/bar ../
2887 # /foo /foo/bar/ ../
2888 # /foo/ /foo/bar/ ../
2889 # /foo /foo/bar/ugg ../../
2892 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2893 changequote([, ])dnl
2895 AC_SUBST(gcc_tooldir)
2898 # Find a directory in which to install a shared libgcc.
2900 AC_ARG_ENABLE(version-specific-runtime-libs,
2901 [ --enable-version-specific-runtime-libs
2902 specify that runtime libraries should be
2903 installed in a compiler-specific directory])
2905 AC_ARG_WITH(slibdir,
2906 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2907 slibdir="$with_slibdir",
2908 if test "${enable_version_specific_runtime_libs+set}" = set; then
2909 slibdir='$(libsubdir)'
2910 elif test "$host" != "$target"; then
2911 slibdir='$(build_tooldir)/lib'
2917 objdir=`${PWDCMD-pwd}`
2920 # Substitute configuration variables
2923 AC_SUBST(all_boot_languages)
2924 AC_SUBST(all_compilers)
2925 AC_SUBST(all_gtfiles)
2926 AC_SUBST(all_gtfiles_files_langs)
2927 AC_SUBST(all_gtfiles_files_files)
2928 AC_SUBST(all_lang_makefrags)
2929 AC_SUBST(all_lang_makefiles)
2930 AC_SUBST(all_languages)
2931 AC_SUBST(all_stagestuff)
2932 AC_SUBST(build_exeext)
2933 AC_SUBST(build_install_headers_dir)
2934 AC_SUBST(build_xm_file_list)
2935 AC_SUBST(build_xm_include_list)
2936 AC_SUBST(build_xm_defines)
2937 AC_SUBST(check_languages)
2938 AC_SUBST(cc_set_by_configure)
2939 AC_SUBST(quoted_cc_set_by_configure)
2940 AC_SUBST(cpp_install_dir)
2941 AC_SUBST(xmake_file)
2942 AC_SUBST(tmake_file)
2943 AC_SUBST(extra_headers_list)
2944 AC_SUBST(extra_objs)
2945 AC_SUBST(extra_parts)
2946 AC_SUBST(extra_passes)
2947 AC_SUBST(extra_programs)
2948 AC_SUBST(float_h_file)
2949 AC_SUBST(gcc_config_arguments)
2950 AC_SUBST(gcc_gxx_include_dir)
2951 AC_SUBST(libstdcxx_incdir)
2952 AC_SUBST(gcc_version)
2953 AC_SUBST(gcc_version_full)
2954 AC_SUBST(gcc_version_trigger)
2955 AC_SUBST(host_exeext)
2956 AC_SUBST(host_extra_gcc_objs)
2957 AC_SUBST(host_xm_file_list)
2958 AC_SUBST(host_xm_include_list)
2959 AC_SUBST(host_xm_defines)
2960 AC_SUBST(out_host_hook_obj)
2962 AC_SUBST(lang_opt_files)
2963 AC_SUBST(lang_specs_files)
2964 AC_SUBST(lang_tree_files)
2965 AC_SUBST(local_prefix)
2967 AC_SUBST(objc_boehm_gc)
2969 AC_SUBST(out_object_file)
2970 AC_SUBST(stage_prefix_set_by_configure)
2971 AC_SUBST(quoted_stage_prefix_set_by_configure)
2972 AC_SUBST(symbolic_link)
2973 AC_SUBST(thread_file)
2974 AC_SUBST(tm_file_list)
2975 AC_SUBST(tm_include_list)
2976 AC_SUBST(tm_defines)
2977 AC_SUBST(tm_p_file_list)
2978 AC_SUBST(tm_p_include_list)
2979 AC_SUBST(xm_file_list)
2980 AC_SUBST(xm_include_list)
2981 AC_SUBST(xm_defines)
2982 AC_SUBST(target_alias)
2983 AC_SUBST(c_target_objs)
2984 AC_SUBST(cxx_target_objs)
2985 AC_SUBST(target_cpu_default)
2987 AC_SUBST_FILE(language_hooks)
2989 # Echo that links are built
2990 if test x$host = x$target
2998 if test x$host != x$build
3000 str3=" on a $build system"
3003 if test "x$str2" != x || test "x$str3" != x
3008 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3010 if test "x$str2" != x || test "x$str3" != x
3012 echo " ${str2}${str3}." 1>&2
3015 # Configure the subdirectories
3016 # AC_CONFIG_SUBDIRS($subdirs)
3018 # Create the Makefile
3019 # and configure language subdirectories
3020 AC_OUTPUT($all_outputs,
3022 case x$CONFIG_HEADERS in
3023 xauto-host.h:config.in)
3026 # Make sure all the subdirs exist.
3029 test -d $d || mkdir $d
3031 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3032 # bootstrapping and the installation procedure can still use
3033 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3034 # FLAGS_TO_PASS has been modified to solve the problem there.
3035 # This is virtually a duplicate of what happens in configure.lang; we do
3036 # an extra check to make sure this only happens if ln -s can be used.
3037 if test "$symbolic_link" = "ln -s"; then
3038 for d in ${subdirs} fixinc ; do
3039 STARTDIR=`${PWDCMD-pwd}`
3041 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3044 $symbolic_link ../$t $t 2>/dev/null
3051 symbolic_link='$symbolic_link'