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='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1460 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1461 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1463 # And these apply if build != host, or we are generating coverage data
1464 if test x$build != x$host || test "x$coverage_flags" != x
1467 BUILD_PREFIX_1=build-
1468 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1470 if test "x$TARGET_SYSTEM_ROOT" = x; then
1476 # Expand extra_headers to include complete path.
1477 # This substitutes for lots of t-* files.
1479 if test "x$extra_headers" = x
1482 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1483 for file in $extra_headers;
1485 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1489 # Add a definition of USE_COLLECT2 if system wants one.
1490 case $use_collect2 in
1491 no) use_collect2= ;;
1494 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1495 xm_defines="${xm_defines} USE_COLLECT2"
1499 # Identify the assembler which will work hand-in-glove with the newly
1500 # built GCC, so that we can examine its features. This is the assembler
1501 # which will be driven by the driver program.
1503 # If build != host, and we aren't building gas in-tree, we identify a
1504 # build->target assembler and hope that it will have the same features
1505 # as the host->target assembler we'll be using.
1506 AC_MSG_CHECKING(what assembler to use)
1509 gcc_cv_gas_major_version=
1510 gcc_cv_gas_minor_version=
1511 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1512 if test -x "$DEFAULT_ASSEMBLER"; then
1513 gcc_cv_as="$DEFAULT_ASSEMBLER"
1514 elif test -x "$AS"; then
1516 elif test -x as$host_exeext; then
1517 # Build using assembler in the current directory.
1518 gcc_cv_as=./as$host_exeext
1519 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1520 && test -f ../gas/Makefile; then
1521 # Single tree build which includes gas.
1523 _gcc_COMPUTE_GAS_VERSION
1524 rm -f as$host_exeext
1525 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1526 in_tree_gas_is_elf=no
1527 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1528 || (grep 'obj_format = multi' ../gas/Makefile \
1529 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1531 in_tree_gas_is_elf=yes
1535 if test "x$gcc_cv_as" = x; then
1536 # Search the same directories that the installed compiler will
1537 # search. Else we may find the wrong assembler and lose. If we
1538 # do not find a suitable assembler binary, then try the user's
1541 # Also note we have to check MD_EXEC_PREFIX before checking the
1542 # user's path. Unfortunately, there is no good way to get at the
1543 # value of MD_EXEC_PREFIX here. So we do a brute force search
1544 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1545 # to be fixed as part of the make/configure rewrite too.
1547 if test "x$exec_prefix" = xNONE; then
1548 if test "x$prefix" = xNONE; then
1549 test_prefix=/usr/local
1554 test_prefix=$exec_prefix
1557 # If the loop below does not find an assembler, then use whatever
1558 # one we can find in the users's path.
1560 if test "x$program_prefix" != xNONE; then
1561 gcc_cv_as=${program_prefix}as$host_exeext
1563 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1566 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1567 $test_prefix/lib/gcc-lib/$target_alias \
1568 /usr/lib/gcc/$target_alias/$gcc_version \
1569 /usr/lib/gcc/$target_alias \
1570 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1571 $test_prefix/$target_alias/bin"
1573 if test x$host = x$target; then
1574 test_dirs="$test_dirs \
1579 /bsd43/usr/lib/cmplrs/cc \
1580 /usr/cross64/usr/bin \
1581 /usr/lib/cmplrs/cc \
1582 /sysv/usr/lib/cmplrs/cc \
1583 /svr4/usr/lib/cmplrs/cc \
1587 for dir in $test_dirs; do
1588 if test -x $dir/as$host_exeext; then
1589 gcc_cv_as=$dir/as$host_exeext
1594 case $in_tree_gas in
1596 AC_MSG_RESULT("newly built gas")
1599 AC_MSG_RESULT($gcc_cv_as)
1603 # Identify the linker which will work hand-in-glove with the newly
1604 # built GCC, so that we can examine its features. This is the linker
1605 # which will be driven by the driver program.
1607 # If build != host, and we aren't building gas in-tree, we identify a
1608 # build->target linker and hope that it will have the same features
1609 # as the host->target linker we'll be using.
1610 AC_MSG_CHECKING(what linker to use)
1613 gcc_cv_gld_major_version=
1614 gcc_cv_gld_minor_version=
1615 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1616 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1617 if test -x "$DEFAULT_LINKER"; then
1618 gcc_cv_ld="$DEFAULT_LINKER"
1619 elif test -x "$LD"; then
1621 elif test -x collect-ld$host_exeext; then
1622 # Build using linker in the current directory.
1623 gcc_cv_ld=./collect-ld$host_exeext
1624 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1625 && test -f ../ld/Makefile; then
1626 # Single tree build which includes ld.
1628 in_tree_ld_is_elf=no
1629 if (grep 'EMUL = .*elf' ../ld/Makefile \
1630 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1631 in_tree_ld_is_elf=yes
1633 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
1636 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1638 if test x$gcc_cv_gld_version != x; then
1643 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1644 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1646 rm -f collect-ld$host_exeext
1647 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1651 if test "x$gcc_cv_ld" = x; then
1652 # Search the same directories that the installed compiler will
1653 # search. Else we may find the wrong linker and lose. If we
1654 # do not find a suitable linker binary, then try the user's
1657 # Also note we have to check MD_EXEC_PREFIX before checking the
1658 # user's path. Unfortunately, there is no good way to get at the
1659 # value of MD_EXEC_PREFIX here. So we do a brute force search
1660 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1661 # to be fixed as part of the make/configure rewrite too.
1663 if test "x$exec_prefix" = xNONE; then
1664 if test "x$prefix" = xNONE; then
1665 test_prefix=/usr/local
1670 test_prefix=$exec_prefix
1673 # If the loop below does not find an linker, then use whatever
1674 # one we can find in the users's path.
1676 if test "x$program_prefix" != xNONE; then
1677 gcc_cv_ld=${program_prefix}ld$host_exeext
1679 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1682 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1683 $test_prefix/lib/gcc-lib/$target_alias \
1684 /usr/lib/gcc/$target_alias/$gcc_version \
1685 /usr/lib/gcc/$target_alias \
1686 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1687 $test_prefix/$target_alias/bin"
1689 if test x$host = x$target; then
1690 test_dirs="$test_dirs \
1695 /bsd43/usr/lib/cmplrs/cc \
1696 /usr/cross64/usr/bin \
1697 /usr/lib/cmplrs/cc \
1698 /sysv/usr/lib/cmplrs/cc \
1699 /svr4/usr/lib/cmplrs/cc \
1703 for dir in $test_dirs; do
1704 if test -x $dir/ld$host_exeext; then
1705 gcc_cv_ld=$dir/ld$host_exeext
1712 AC_MSG_RESULT("newly built ld")
1715 AC_MSG_RESULT($gcc_cv_ld)
1719 # Figure out what nm we will be using.
1720 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1721 AC_MSG_CHECKING(what nm to use)
1723 if test -x nm$host_exeext; then
1724 gcc_cv_nm=./nm$host_exeext
1725 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1726 && test -f ../binutils/Makefile; then
1727 # Single tree build which includes binutils.
1729 gcc_cv_nm=./nm$host_exeext
1730 rm -f nm$host_exeext
1731 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1732 elif test "x$program_prefix" != xNONE; then
1733 gcc_cv_nm=${program_prefix}nm$host_exeext
1735 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1738 yes) AC_MSG_RESULT("newly built nm") ;;
1739 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1742 # Figure out what objdump we will be using.
1743 AC_MSG_CHECKING(what objdump to use)
1745 if test -x objdump$host_exeext; then
1746 gcc_cv_objdump=./objdump$host_exeext
1747 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1748 && test -f ../binutils/Makefile; then
1749 # Single tree build which includes binutils.
1751 gcc_cv_objdump=./objdump$host_exeext
1752 rm -f objdump$host_exeext
1753 $symbolic_link ../binutils/objdump$host_exeext \
1754 objdump$host_exeext 2>/dev/null
1755 elif test "x$program_prefix" != xNONE; then
1756 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1758 gcc_cv_objdump=`echo objdump | \
1759 sed ${program_transform_name}`$host_exeext
1761 case $in_tree_objdump in
1762 yes) AC_MSG_RESULT("newly built objdump") ;;
1763 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1766 # Figure out what assembler alignment features are present.
1767 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1771 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1772 [Define if your assembler supports .balign and .p2align.])])
1774 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1777 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1778 [Define if your assembler supports specifying the maximum number
1779 of bytes to skip when using the GAS .p2align command.])])
1781 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1783 [conftest_label1: .word 0
1785 conftest_label2: .word 0
1787 [if test x$gcc_cv_nm != x; then
1788 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1789 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1790 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1792 else gcc_cv_as_subsection_m1=yes
1794 rm -f conftest.nm1 conftest.nm2
1796 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1797 [Define if your assembler supports .subsection and .subsection -1 starts
1798 emitting at the beginning of your section.])])
1800 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1803 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1805 # .hidden needs to be supported in both the assembler and the linker,
1806 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1807 # This is irritatingly difficult to feature test for; we have to check the
1808 # date string after the version number. If we've got an in-tree
1809 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
1811 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
1812 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
1817 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
1818 [if test $in_tree_ld = yes ; then
1820 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
1821 && test $in_tree_ld_is_elf = yes; then
1822 gcc_cv_ld_hidden=yes
1825 gcc_cv_ld_hidden=yes
1826 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
1827 if echo "$ld_ver" | grep GNU > /dev/null; then
1829 ld_vers=`echo $ld_ver | sed -n \
1830 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1831 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1832 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
1833 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1834 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
1835 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
1836 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1837 if test 0"$ld_date" -lt 20020404; then
1838 if test -n "$ld_date"; then
1839 # If there was date string, but was earlier than 2002-04-04, fail
1841 elif test -z "$ld_vers"; then
1842 # If there was no date string nor ld version number, something is wrong
1845 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1846 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1847 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1848 test -z "$ld_vers_patch" && ld_vers_patch=0
1849 if test "$ld_vers_major" -lt 2; then
1851 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1852 gcc_cv_ld_hidden="no"
1853 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
1860 # non-GNU linkers don't seem to support .hidden yet
1864 libgcc_visibility=no
1865 AC_SUBST(libgcc_visibility)
1866 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
1867 libgcc_visibility=yes
1868 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1869 [Define if your assembler and linker support .hidden.])
1872 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1873 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
1881 [# GAS versions before 2.11 do not support uleb128,
1882 # despite appearing to.
1883 # ??? There exists an elf-specific test that will crash
1884 # the assembler. Perhaps it's better to figure out whether
1885 # arbitrary sections are supported and try the test.
1886 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
1887 if echo "$as_ver" | grep GNU > /dev/null; then
1889 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1890 as_major=`echo $as_ver | sed 's/\..*//'`
1891 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1893 if test $as_major -eq 2 && test $as_minor -lt 11
1895 else gcc_cv_as_leb128=yes
1898 [AC_DEFINE(HAVE_AS_LEB128, 1,
1899 [Define if your assembler supports .sleb128 and .uleb128.])])
1901 # GAS versions up to and including 2.11.0 may mis-optimize
1903 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
1911 .section .eh_frame,"aw",@progbits
1913 .4byte .LECIE1-.LSCIE1
1927 .4byte .LEFDE1-.LASFDE1
1929 .4byte .LASFDE1-__FRAME_BEGIN__
1937 [ cat > conftest.lit <<EOF
1938 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1939 0010 01000000 12000000 18000000 00000000 ................
1940 0020 08000000 04080000 0044 .........D
1942 cat > conftest.big <<EOF
1943 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1944 0010 00000001 00000012 00000018 00000000 ................
1945 0020 00000008 04000000 0844 .........D
1947 # If the assembler didn't choke, and we can objdump,
1948 # and we got the correct data, then succeed.
1949 if test x$gcc_cv_objdump != x \
1950 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1951 | tail -3 > conftest.got \
1952 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1953 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1955 gcc_cv_as_eh_frame=yes
1956 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
1957 gcc_cv_as_eh_frame=buggy
1959 # Uh oh, what do we do now?
1960 gcc_cv_as_eh_frame=no
1963 if test $gcc_cv_as_eh_frame = buggy; then
1964 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1965 [Define if your assembler mis-optimizes .eh_frame data.])
1968 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
1969 [elf,2,12,0], [--fatal-warnings],
1970 [.section .rodata.str, "aMS", @progbits, 1],,
1971 [AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1972 [Define if your assembler supports marking sections with SHF_MERGE flag.])])
1974 # Thread-local storage - the check is heavily parametrized.
1983 .section ".tdata","awT",@progbits
1986 ldq $27,__tls_get_addr($29) !literal!1
1987 lda $16,foo($29) !tlsgd!1
1988 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
1989 ldq $27,__tls_get_addr($29) !literal!2
1990 lda $16,foo($29) !tlsldm!2
1991 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
1992 ldq $1,foo($29) !gotdtprel
1993 ldah $2,foo($29) !dtprelhi
1994 lda $3,foo($2) !dtprello
1995 lda $4,foo($29) !dtprel
1996 ldq $1,foo($29) !gottprel
1997 ldah $2,foo($29) !tprelhi
1998 lda $3,foo($2) !tprello
1999 lda $4,foo($29) !tprel'
2005 .section ".tdata","awT",@progbits
2009 leal foo@TLSGD(,%ebx,1), %eax
2010 leal foo@TLSLDM(%ebx), %eax
2011 leal foo@DTPOFF(%eax), %edx
2012 movl foo@GOTTPOFF(%ebx), %eax
2013 subl foo@GOTTPOFF(%ebx), %eax
2014 addl foo@GOTNTPOFF(%ebx), %eax
2015 movl foo@INDNTPOFF, %eax
2016 movl $foo@TPOFF, %eax
2017 subl $foo@TPOFF, %eax
2018 leal foo@NTPOFF(%ecx), %eax'
2024 .section ".tdata","awT",@progbits
2028 leaq foo@TLSGD(%rip), %rdi
2029 leaq foo@TLSLD(%rip), %rdi
2030 leaq foo@DTPOFF(%rax), %rdx
2031 movq foo@GOTTPOFF(%rip), %rax
2032 movq $foo@TPOFF, %rax'
2038 .section ".tdata","awT",@progbits
2041 addl r16 = @ltoff(@dtpmod(foo#)), gp
2042 addl r17 = @ltoff(@dtprel(foo#)), gp
2043 addl r18 = @ltoff(@tprel(foo#)), gp
2044 addl r19 = @dtprel(foo#), gp
2045 adds r21 = @dtprel(foo#), r13
2046 movl r23 = @dtprel(foo#)
2047 addl r20 = @tprel(foo#), gp
2048 adds r22 = @tprel(foo#), r13
2049 movl r24 = @tprel(foo#)'
2055 .section ".tdata","awT",@progbits
2063 addi 3,31,ld0@got@tlsgd
2065 addi 3,31,x1@got@tlsld
2068 addis 9,3,x2@dtprel@ha
2069 addi 9,9,x2@dtprel@l
2070 lwz 9,x3@got@tprel(31)
2073 addis 9,2,x2@tprel@ha
2074 addi 9,9,x2@tprel@l'
2081 .section ".tdata","awT",@progbits
2089 addi 3,2,ld0@got@tlsgd
2095 addi 3,2,x1@got@tlsld
2101 addis 9,3,x2@dtprel@ha
2102 addi 9,9,x2@dtprel@l
2105 ld 9,x3@got@dtprel(2)
2115 .section ".tdata","awT",@progbits
2124 l %r1,foo@GOTNTPOFF(%r12)
2125 l %r1,0(%r1):tls_load:foo
2126 bas %r14,0(%r1,%r13):tls_gdcall:foo
2127 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2134 .section ".tdata","awT",@progbits
2142 lg %r1,foo@GOTNTPOFF(%r12)
2143 larl %r1,foo@INDNTPOFF
2144 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2145 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2148 tls_as_opt="-m64 -Aesame"
2152 .section ".tdata","awT",@progbits
2155 sethi %tgd_hi22(foo), %o0
2156 add %o0, %tgd_lo10(foo), %o1
2157 add %l7, %o1, %o0, %tgd_add(foo)
2158 call __tls_get_addr, %tgd_call(foo)
2159 sethi %tldm_hi22(foo), %l1
2160 add %l1, %tldm_lo10(foo), %l2
2161 add %l7, %l2, %o0, %tldm_add(foo)
2162 call __tls_get_addr, %tldm_call(foo)
2163 sethi %tldo_hix22(foo), %l3
2164 xor %l3, %tldo_lox10(foo), %l4
2165 add %o0, %l4, %l5, %tldo_add(foo)
2166 sethi %tie_hi22(foo), %o3
2167 add %o3, %tie_lo10(foo), %o3
2168 ld [%l7 + %o3], %o2, %tie_ld(foo)
2169 add %g7, %o2, %o4, %tie_add(foo)
2170 sethi %tle_hix22(foo), %l1
2171 xor %l1, %tle_lox10(foo), %o5
2172 ld [%g7 + %o5], %o1'
2179 if test -z "$tls_first_major"; then
2180 : # If we don't have a check, assume no support.
2182 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2183 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt --fatal-warnings],
2185 [AC_DEFINE(HAVE_AS_TLS, 1,
2186 [Define if your assembler supports thread-local storage.])])
2189 # Target-specific assembler checks.
2192 # All TARGET_ABI_OSF targets.
2193 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2194 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2195 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2198 extbl $3, $2, $3 !lituse_bytoff!1
2199 ldq $2, a($29) !literal!1
2200 ldq $4, b($29) !literal!2
2201 ldq_u $3, 0($2) !lituse_base!1
2202 ldq $27, f($29) !literal!5
2203 jsr $26, ($27), f !lituse_jsr!5
2204 ldah $29, 0($26) !gpdisp!3
2205 lda $0, c($29) !gprel
2206 ldah $1, d($29) !gprelhigh
2207 lda $1, d($1) !gprellow
2208 lda $29, 0($29) !gpdisp!3],,
2209 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2210 [Define if your assembler supports explicit relocations.])])
2214 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2215 [.register %g2, #scratch],,
2216 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2217 [Define if your assembler supports .register.])])
2219 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2221 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2222 [Define if your assembler supports -relax option.])])
2224 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2225 gcc_cv_as_sparc_ua_pcrel,,
2233 .uaword %r_disp32(foo)],
2234 [if test x$gcc_cv_ld != x \
2235 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2236 gcc_cv_as_sparc_ua_pcrel=yes
2239 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2240 [Define if your assembler and linker support unaligned PC relative relocs.])
2242 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2243 gcc_cv_as_sparc_ua_pcrel_hidden,,
2248 .uaword %r_disp32(foo)
2249 .byte 0x32, 0x33, 0x34
2254 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2255 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2256 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2257 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2258 if $gcc_cv_objdump -R conftest 2> /dev/null \
2259 | grep 'DISP32' > /dev/null 2>&1; then
2262 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2266 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2267 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2268 ]) # unaligned pcrel relocs
2270 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2271 gcc_cv_as_sparc_offsetable_lo10,,
2274 or %g1, %lo(ab) + 12, %g1
2275 or %g1, %lo(ab + 12), %g1],
2276 [if test x$gcc_cv_objdump != x \
2277 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2278 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2279 gcc_cv_as_offsetable_lo10=yes
2281 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2282 [Define if your assembler supports offsetable %lo().])])
2286 i[34567]86-*-* | x86_64-*-*)
2288 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2289 gcc_cv_as_ix86_filds_fists,
2290 [2,9,0],, [filds mem; fists mem],,
2291 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2292 [Define if your assembler uses the new HImode fild and fist notation.])])
2294 gcc_GAS_CHECK_FEATURE([cmov syntax],
2295 gcc_cv_as_ix86_cmov_sun_syntax,,,
2296 [cmovl.l %edx, %eax],,
2297 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2298 [Define if your assembler supports the Sun syntax for cmov.])])
2300 # This one is used unconditionally by i386.[ch]; it is to be defined
2301 # to 1 if the feature is present, 0 otherwise.
2302 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2303 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2309 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2310 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2311 [Define true if the assembler supports '.long foo@GOTOFF'.])
2315 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2316 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2318 addl r15 = @ltoffx(x#), gp
2320 ld8.mov r16 = [[r15]], x#],,
2321 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2322 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2328 *-*-aix) conftest_s=' .csect .text[PR]';;
2329 *) conftest_s=' .text';;
2331 conftest_s="$conftest_s
2334 gcc_GAS_CHECK_FEATURE([mfcr field support],
2335 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2337 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2338 [Define if your assembler supports mfcr field.])])
2342 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2343 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2344 [ lw $4,%gp_rel(foo)($4)],,
2345 [if test x$target_cpu_default = x
2346 then target_cpu_default=MASK_EXPLICIT_RELOCS
2347 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2352 # ??? Not all targets support dwarf2 debug_line, even within a version
2353 # of gas. Moreover, we need to emit a valid instruction to trigger any
2354 # info to the output file. So, as supported targets are added to gas 2.11,
2355 # add some instruction here to (also) show we expect this might work.
2356 # ??? Once 2.11 is released, probably need to add first known working
2357 # version to the per-target configury.
2359 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2360 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2361 | xstormy16*-*-* | cris-*-*)
2371 if test x"$insn" != x; then
2373 .file 1 \"conftest.s\"
2376 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2377 gcc_cv_as_dwarf2_debug_line,
2378 [elf,2,11,0],, [$conftest_s],
2379 [# ??? This fails with non-gnu grep. Maybe use objdump?
2380 if grep debug_line conftest.o > /dev/null 2>&1; then
2381 gcc_cv_as_dwarf2_debug_line=yes
2384 # The .debug_line file table must be in the exact order that
2385 # we specified the files, since these indices are also used
2386 # by DW_AT_decl_file. Approximate this test by testing if
2387 # the assembler bitches if the same index is assigned twice.
2388 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2389 gcc_cv_as_dwarf2_file_buggy,,,
2393 if test $gcc_cv_as_dwarf2_debug_line = yes \
2394 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2395 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2396 [Define if your assembler supports dwarf2 .file/.loc directives,
2397 and preserves file table indices exactly as given.])
2400 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2401 gcc_cv_as_gdwarf2_flag,
2402 [elf,2,11,0], [--gdwarf2], [$insn],,
2403 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2404 [Define if your assembler supports the --gdwarf2 option.])])
2406 gcc_GAS_CHECK_FEATURE([--gstabs option],
2407 gcc_cv_as_gstabs_flag,
2408 [elf,2,11,0], [--gstabs], [$insn],
2409 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2410 # and warns about it, but still exits successfully. So check for
2412 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2414 else gcc_cv_as_gstabs_flag=yes
2416 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2417 [Define if your assembler supports the --gstabs option.])])
2420 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2421 gcc_cv_ld_ro_rw_mix=unknown
2422 if test $in_tree_ld = yes ; then
2423 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2424 && test $in_tree_ld_is_elf = yes; then
2425 gcc_cv_ld_ro_rw_mix=read-write
2427 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2428 echo '.section myfoosect, "a"' > conftest1.s
2429 echo '.section myfoosect, "aw"' > conftest2.s
2430 echo '.byte 1' >> conftest2.s
2431 echo '.section myfoosect, "a"' > conftest3.s
2432 echo '.byte 0' >> conftest3.s
2433 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2434 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2435 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2436 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2437 conftest2.o conftest3.o > /dev/null 2>&1; then
2438 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2439 | sed -e '/myfoosect/!d' -e N`
2440 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2441 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2442 gcc_cv_ld_ro_rw_mix=read-only
2444 gcc_cv_ld_ro_rw_mix=read-write
2449 rm -f conftest.* conftest[123].*
2452 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2453 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2454 [Define if your linker links a mix of read-only
2455 and read-write sections into a read-write section.])
2457 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2459 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2460 gcc_cv_ld_eh_frame_hdr=no
2461 if test $in_tree_ld = yes ; then
2462 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2463 && test $in_tree_ld_is_elf = yes; then
2464 gcc_cv_ld_eh_frame_hdr=yes
2466 elif test x$gcc_cv_ld != x; then
2467 # Check if linker supports --eh-frame-hdr option
2468 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2469 gcc_cv_ld_eh_frame_hdr=yes
2472 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2473 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2474 [Define if your linker supports --eh-frame-hdr option.])
2476 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2478 AC_MSG_CHECKING(linker position independent executable support)
2480 if test $in_tree_ld = yes ; then
2481 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2482 && test $in_tree_ld_is_elf = yes; then
2485 elif test x$gcc_cv_ld != x; then
2486 # Check if linker supports -pie option
2487 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2491 if test x"$gcc_cv_ld_pie" = xyes; then
2492 AC_DEFINE(HAVE_LD_PIE, 1,
2493 [Define if your linker supports -pie option.])
2495 AC_MSG_RESULT($gcc_cv_ld_pie)
2497 # Miscellaneous target-specific checks.
2500 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2501 gcc_cv_mips_libgloss_startup=no
2502 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2503 if test "x$exec_prefix" = xNONE; then
2504 if test "x$prefix" = xNONE; then
2505 test_prefix=/usr/local
2510 test_prefix=$exec_prefix
2512 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2514 if grep '^STARTUP' $f > /dev/null 2>&1; then
2515 gcc_cv_mips_libgloss_startup=yes
2519 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2520 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2521 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2523 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2527 if test x$with_sysroot = x && test x$host = x$target \
2528 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2529 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2530 [Define to PREFIX/include if cpp should also search that directory.])
2533 # Figure out what language subdirectories are present.
2534 # Look if the user specified --enable-languages="..."; if not, use
2535 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2537 # NB: embedded tabs in this IF block -- do not untabify
2538 if test x"${enable_languages+set}" != xset; then
2539 if test x"${LANGUAGES+set}" = xset; then
2540 enable_languages="${LANGUAGES}"
2541 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2544 enable_languages=all
2547 if test x"${enable_languages}" = x \
2548 || test x"${enable_languages}" = xyes;
2550 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2553 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2555 # First scan to see if an enabled language requires some other language.
2556 # We assume that a given config-lang.in will list all the language
2557 # front ends it requires, even if some are required indirectly.
2558 for lang in ${srcdir}/*/config-lang.in
2561 # The odd quoting in the next line works around
2562 # an apparent bug in bash 1.12 on linux.
2564 ${srcdir}/[*]/config-lang.in)
2567 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2568 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2569 for other in $this_lang_requires
2571 case ,${enable_languages}, in
2577 enable_languages="$enable_languages,$other"
2586 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2589 for lang in ${srcdir}/*/config-lang.in
2592 # The odd quoting in the next line works around
2593 # an apparent bug in bash 1.12 on linux.
2595 ${srcdir}/[*]/config-lang.in) ;;
2597 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2598 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2599 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2600 if test "x$lang_alias" = x
2602 echo "$lang doesn't set \$language." 1>&2
2605 case ${build_by_default},${enable_languages}, in
2606 *,$lang_alias,*) add_this_lang=yes ;;
2607 no,*) add_this_lang=no ;;
2608 *,all,*) add_this_lang=yes ;;
2609 *) add_this_lang=no ;;
2611 found_languages="${found_languages} ${lang_alias}"
2612 if test x"${add_this_lang}" = xyes; then
2614 ${srcdir}/ada/config-lang.in)
2615 if test x$have_gnat = xyes ; then
2616 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2620 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2630 for expected_language in ${expected_languages} ..
2632 if test "${expected_language}" != ..; then
2633 missing_language="${expected_language}"
2634 if test "${expected_language}" = "c" \
2635 || test "${expected_language}" = "all"; then
2638 for found_language in ${found_languages} ..
2640 if test "${found_language}" != ..; then
2641 if test "${expected_language}" = "${found_language}"; then
2646 if test "x${missing_language}" != x; then
2647 missing_languages="${missing_languages} ${missing_language}"
2652 if test "x$missing_languages" != x; then
2654 The following requested languages were not found:${missing_languages}
2655 The following languages were available: c${found_languages}])
2658 # Make gthr-default.h if we have a thread file.
2660 if test $thread_file != single; then
2661 rm -f gthr-default.h
2662 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2663 gthread_flags=-DHAVE_GTHR_DEFAULT
2665 AC_SUBST(gthread_flags)
2667 # Find out what GC implementation we want, or may, use.
2669 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2676 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2681 echo "Using $GGC for garbage collection."
2683 # Use the system's zlib library.
2685 zlibinc="-I\$(srcdir)/../zlib"
2686 AC_ARG_WITH(system-zlib,
2687 [ --with-system-zlib use installed libz],
2694 dnl Very limited version of automake's enable-maintainer-mode
2696 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2697 dnl maintainer-mode is disabled by default
2698 AC_ARG_ENABLE(maintainer-mode,
2699 [ --enable-maintainer-mode
2700 enable make rules and dependencies not useful
2701 (and sometimes confusing) to the casual installer],
2702 maintainer_mode=$enableval,
2705 AC_MSG_RESULT($maintainer_mode)
2707 if test "$maintainer_mode" = "yes"; then
2714 # Make empty files to contain the specs and options for each language.
2715 # Then add #include lines to for a compiler that has specs and/or options.
2720 for subdir in . $subdirs
2722 if test -f $srcdir/$subdir/lang.opt; then
2723 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2725 if test -f $srcdir/$subdir/lang-specs.h; then
2726 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2728 if test -f $srcdir/$subdir/$subdir-tree.def; then
2729 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2733 # These (without "all_") are set in each config-lang.in.
2734 # `language' must be a single word so is spelled singularly.
2739 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2740 # List of language makefile fragments.
2742 # List of language subdirectory makefiles. Deprecated.
2744 # Files for gengtype
2745 all_gtfiles="$target_gtfiles"
2746 # Files for gengtype with language
2747 all_gtfiles_files_langs=
2748 all_gtfiles_files_files=
2750 # Add the language fragments.
2751 # Languages are added via two mechanisms. Some information must be
2752 # recorded in makefile variables, these are defined in config-lang.in.
2753 # We accumulate them and plug them into the main Makefile.
2754 # The other mechanism is a set of hooks for each of the main targets
2755 # like `clean', `install', etc.
2757 language_hooks="Make-hooks"
2767 . ${srcdir}/$s/config-lang.in
2768 if test "x$language" = x
2770 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2773 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2774 if test -f ${srcdir}/$s/Makefile.in
2775 then all_lang_makefiles="$s/Makefile"
2777 all_languages="$all_languages $language"
2778 if test "x$boot_language" = xyes
2780 all_boot_languages="$all_boot_languages $language"
2782 all_compilers="$all_compilers $compilers"
2783 all_stagestuff="$all_stagestuff $stagestuff"
2784 all_outputs="$all_outputs $outputs"
2785 all_gtfiles="$all_gtfiles $gtfiles"
2788 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2789 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2793 # Pick up gtfiles for c
2796 . ${srcdir}/c-config-lang.in
2797 all_gtfiles="$all_gtfiles $gtfiles"
2800 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2801 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2805 for language in $all_languages
2807 check_languages="$check_languages check-$language"
2810 # Since we can't use `::' targets, we link each language in
2811 # with a set of hooks, reached indirectly via lang.${target}.
2815 target_list="all.build all.cross start.encap rest.encap tags \
2816 info dvi generated-manpages \
2817 install-normal install-common install-info install-man \
2819 mostlyclean clean distclean extraclean maintainer-clean \
2820 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2821 for t in $target_list
2824 for lang in $all_languages
2828 echo "lang.$t: $x" >> Make-hooks
2833 echo "dir ." > .gdbinit
2834 echo "dir ${srcdir}" >> .gdbinit
2835 if test x$gdb_needs_out_file_path = xyes
2837 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2839 if test "x$subdirs" != x; then
2842 echo "dir ${srcdir}/$s" >> .gdbinit
2845 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2847 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2848 # absolute path for gcc_tooldir based on inserting the number of up-directory
2849 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2850 # $(libsubdir)/@(unlibsubdir) based path.
2851 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2852 # make and thus we'd get different behavior depending on where we built the
2854 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2855 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2857 changequote(<<, >>)dnl
2858 # An explanation of the sed strings:
2859 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2860 # -e 's|/$||' match a trailing forward slash and eliminates it
2861 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2862 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2864 # (*) Note this pattern overwrites the first character of the string
2865 # with a forward slash if one is not already present. This is not a
2866 # problem because the exact names of the sub-directories concerned is
2867 # unimportant, just the number of them matters.
2869 # The practical upshot of these patterns is like this:
2871 # prefix exec_prefix result
2872 # ------ ----------- ------
2874 # /foo/ /foo/bar ../
2875 # /foo /foo/bar/ ../
2876 # /foo/ /foo/bar/ ../
2877 # /foo /foo/bar/ugg ../../
2880 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2881 changequote([, ])dnl
2883 AC_SUBST(gcc_tooldir)
2886 # Find a directory in which to install a shared libgcc.
2888 AC_ARG_ENABLE(version-specific-runtime-libs,
2889 [ --enable-version-specific-runtime-libs
2890 specify that runtime libraries should be
2891 installed in a compiler-specific directory])
2893 AC_ARG_WITH(slibdir,
2894 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2895 slibdir="$with_slibdir",
2896 if test "${enable_version_specific_runtime_libs+set}" = set; then
2897 slibdir='$(libsubdir)'
2898 elif test "$host" != "$target"; then
2899 slibdir='$(build_tooldir)/lib'
2905 objdir=`${PWDCMD-pwd}`
2908 # Substitute configuration variables
2911 AC_SUBST(all_boot_languages)
2912 AC_SUBST(all_compilers)
2913 AC_SUBST(all_gtfiles)
2914 AC_SUBST(all_gtfiles_files_langs)
2915 AC_SUBST(all_gtfiles_files_files)
2916 AC_SUBST(all_lang_makefrags)
2917 AC_SUBST(all_lang_makefiles)
2918 AC_SUBST(all_languages)
2919 AC_SUBST(all_stagestuff)
2920 AC_SUBST(build_exeext)
2921 AC_SUBST(build_install_headers_dir)
2922 AC_SUBST(build_xm_file_list)
2923 AC_SUBST(build_xm_include_list)
2924 AC_SUBST(build_xm_defines)
2925 AC_SUBST(check_languages)
2926 AC_SUBST(cc_set_by_configure)
2927 AC_SUBST(quoted_cc_set_by_configure)
2928 AC_SUBST(cpp_install_dir)
2929 AC_SUBST(xmake_file)
2930 AC_SUBST(tmake_file)
2931 AC_SUBST(extra_headers_list)
2932 AC_SUBST(extra_objs)
2933 AC_SUBST(extra_parts)
2934 AC_SUBST(extra_passes)
2935 AC_SUBST(extra_programs)
2936 AC_SUBST(float_h_file)
2937 AC_SUBST(gcc_config_arguments)
2938 AC_SUBST(gcc_gxx_include_dir)
2939 AC_SUBST(libstdcxx_incdir)
2940 AC_SUBST(gcc_version)
2941 AC_SUBST(gcc_version_full)
2942 AC_SUBST(gcc_version_trigger)
2943 AC_SUBST(host_exeext)
2944 AC_SUBST(host_extra_gcc_objs)
2945 AC_SUBST(host_xm_file_list)
2946 AC_SUBST(host_xm_include_list)
2947 AC_SUBST(host_xm_defines)
2948 AC_SUBST(out_host_hook_obj)
2950 AC_SUBST(lang_opt_files)
2951 AC_SUBST(lang_specs_files)
2952 AC_SUBST(lang_tree_files)
2953 AC_SUBST(local_prefix)
2955 AC_SUBST(objc_boehm_gc)
2957 AC_SUBST(out_object_file)
2958 AC_SUBST(stage_prefix_set_by_configure)
2959 AC_SUBST(quoted_stage_prefix_set_by_configure)
2960 AC_SUBST(symbolic_link)
2961 AC_SUBST(thread_file)
2962 AC_SUBST(tm_file_list)
2963 AC_SUBST(tm_include_list)
2964 AC_SUBST(tm_defines)
2965 AC_SUBST(tm_p_file_list)
2966 AC_SUBST(tm_p_include_list)
2967 AC_SUBST(xm_file_list)
2968 AC_SUBST(xm_include_list)
2969 AC_SUBST(xm_defines)
2970 AC_SUBST(target_alias)
2971 AC_SUBST(c_target_objs)
2972 AC_SUBST(cxx_target_objs)
2973 AC_SUBST(target_cpu_default)
2975 AC_SUBST_FILE(language_hooks)
2977 # Echo that links are built
2978 if test x$host = x$target
2986 if test x$host != x$build
2988 str3=" on a $build system"
2991 if test "x$str2" != x || test "x$str3" != x
2996 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
2998 if test "x$str2" != x || test "x$str3" != x
3000 echo " ${str2}${str3}." 1>&2
3003 # Configure the subdirectories
3004 # AC_CONFIG_SUBDIRS($subdirs)
3006 # Create the Makefile
3007 # and configure language subdirectories
3008 AC_OUTPUT($all_outputs,
3010 case x$CONFIG_HEADERS in
3011 xauto-host.h:config.in)
3014 # Make sure all the subdirs exist.
3017 test -d $d || mkdir $d
3019 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3020 # bootstrapping and the installation procedure can still use
3021 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3022 # FLAGS_TO_PASS has been modified to solve the problem there.
3023 # This is virtually a duplicate of what happens in configure.lang; we do
3024 # an extra check to make sure this only happens if ln -s can be used.
3025 if test "$symbolic_link" = "ln -s"; then
3026 for d in ${subdirs} fixinc ; do
3027 STARTDIR=`${PWDCMD-pwd}`
3029 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3032 $symbolic_link ../$t $t 2>/dev/null
3039 symbolic_link='$symbolic_link'