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 # Define variables host_canonical and build_canonical
36 build_canonical=${build}
37 host_canonical=${host}
38 AC_SUBST(build_canonical)
39 AC_SUBST(host_canonical)
42 if test "${host}" != "${target}" ; then
43 target_subdir=${target_alias}/
45 AC_SUBST(target_subdir)
47 # Set program_transform_name
50 # Check for bogus environment variables.
51 # Test if LIBRARY_PATH contains the notation for the current directory
52 # since this would lead to problems installing/building glibc.
53 # LIBRARY_PATH contains the current directory if one of the following
55 # - one of the terminals (":" and ";") is the first or last sign
56 # - two terminals occur directly after each other
57 # - the path contains an element with a dot in it
58 AC_MSG_CHECKING(LIBRARY_PATH variable)
60 case ${LIBRARY_PATH} in
61 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
62 library_path_setting="contains current directory"
65 library_path_setting="ok"
69 AC_MSG_RESULT($library_path_setting)
70 if test "$library_path_setting" != "ok"; then
72 *** LIBRARY_PATH shouldn't contain the current directory when
73 *** building gcc. Please change the environment variable
74 *** and run configure again.])
77 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
78 # since this would lead to problems installing/building glibc.
79 # GCC_EXEC_PREFIX contains the current directory if one of the following
81 # - one of the terminals (":" and ";") is the first or last sign
82 # - two terminals occur directly after each other
83 # - the path contains an element with a dot in it
84 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
86 case ${GCC_EXEC_PREFIX} in
87 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
88 gcc_exec_prefix_setting="contains current directory"
91 gcc_exec_prefix_setting="ok"
95 AC_MSG_RESULT($gcc_exec_prefix_setting)
96 if test "$gcc_exec_prefix_setting" != "ok"; then
98 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
99 *** building gcc. Please change the environment variable
100 *** and run configure again.])
107 # Specify the local prefix
109 AC_ARG_WITH(local-prefix,
110 [ --with-local-prefix=DIR specifies directory to put local include],
111 [case "${withval}" in
112 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
114 *) local_prefix=$with_local_prefix ;;
117 # Default local prefix if it is empty
118 if test x$local_prefix = x; then
119 local_prefix=/usr/local
122 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
123 # passed in by the toplevel make and thus we'd get different behavior
124 # depending on where we built the sources.
126 # Specify the g++ header file directory
127 AC_ARG_WITH(gxx-include-dir,
128 [ --with-gxx-include-dir=DIR
129 specifies directory to put g++ header files],
130 [case "${withval}" in
131 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
133 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
136 if test x${gcc_gxx_include_dir} = x; then
137 if test x${enable_version_specific_runtime_libs} = xyes; then
138 gcc_gxx_include_dir='${libsubdir}/include/c++'
140 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
141 changequote(<<, >>)dnl
142 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
147 AC_ARG_WITH(cpp_install_dir,
148 [ --with-cpp-install-dir=DIR
149 install the user visible C preprocessor in DIR
150 (relative to PREFIX) as well as PREFIX/bin],
151 [if test x$withval = xyes; then
152 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
153 elif test x$withval != xno; then
154 cpp_install_dir=$withval
157 # -------------------
158 # Find default linker
159 # -------------------
163 [ --with-gnu-ld arrange to work with GNU ld.],
164 gnu_ld_flag="$with_gnu_ld",
167 # With pre-defined ld
169 [ --with-ld arrange to use the specified ld (full pathname)],
170 DEFAULT_LINKER="$with_ld")
171 if test x"${DEFAULT_LINKER+set}" = x"set"; then
172 if test ! -x "$DEFAULT_LINKER"; then
173 AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
174 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
177 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
178 [Define to enable the use of a default linker.])
181 AC_MSG_CHECKING([whether a default linker was specified])
182 if test x"${DEFAULT_LINKER+set}" = x"set"; then
183 if test x"$gnu_ld_flag" = x"no"; then
184 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
186 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
192 # ----------------------
193 # Find default assembler
194 # ----------------------
198 [ --with-gnu-as arrange to work with GNU as],
199 gas_flag="$with_gnu_as",
203 [ --with-as arrange to use the specified as (full pathname)],
204 DEFAULT_ASSEMBLER="$with_as")
205 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
206 if test ! -x "$DEFAULT_ASSEMBLER"; then
207 AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
208 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
211 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
212 [Define to enable the use of a default assembler.])
215 AC_MSG_CHECKING([whether a default assembler was specified])
216 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
217 if test x"$gas_flag" = x"no"; then
218 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
220 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
230 # Find the native compiler
233 # autoconf is lame and doesn't give us any substitution variable for this.
234 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
235 NO_MINUS_C_MINUS_O=yes
237 OUTPUT_OPTION='-o $@'
239 AC_SUBST(NO_MINUS_C_MINUS_O)
240 AC_SUBST(OUTPUT_OPTION)
242 # -------------------------
243 # Check C compiler features
244 # -------------------------
246 AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
247 ac_cv_prog_cc_no_long_long,
248 [save_CFLAGS="$CFLAGS"
249 CFLAGS="-Wno-long-long"
250 AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
251 ac_cv_prog_cc_no_long_long=no)
252 CFLAGS="$save_CFLAGS"])
262 # sizeof(char) is 1 by definition.
263 AC_COMPILE_CHECK_SIZEOF(short)
264 AC_COMPILE_CHECK_SIZEOF(int)
265 AC_COMPILE_CHECK_SIZEOF(long)
266 if test $ac_cv_c_long_long = yes; then
267 AC_COMPILE_CHECK_SIZEOF(long long)
269 if test $ac_cv_c___int64 = yes; then
270 AC_COMPILE_CHECK_SIZEOF(__int64)
279 # See if GNAT has been installed
282 if test x$have_gnat != xno ; then
283 AC_CACHE_CHECK(whether ${ADAC} accepts -Wno-long-long,
284 ac_cv_prog_adac_no_long_long,
285 [cat >conftest.adb <<EOF
286 procedure conftest is begin null; end conftest;
288 if $ADAC -Wno-long-long -c conftest.adb 1>&5 2>&5 ; then
289 ac_cv_prog_adac_no_long_long=yes
291 ac_cv_prog_adac_no_long_long=no
295 ac_cv_prog_adac_no_long_long=yes
298 # ---------------------
299 # Warnings and checking
300 # ---------------------
303 if test $ac_cv_prog_cc_no_long_long = yes && \
304 test $ac_cv_prog_adac_no_long_long = yes ; then
305 strict1_warn="-pedantic -Wno-long-long"
307 AC_SUBST(strict1_warn)
309 # If the native compiler is GCC, we can enable warnings even in stage1.
310 # That's useful for people building cross-compilers, or just running a
313 if test "x$GCC" = "xyes"; then
314 warn_cflags='$(GCC_WARN_CFLAGS)'
316 AC_SUBST(warn_cflags)
318 # Enable -Werror in bootstrap stage2 and later.
319 # Change the default to "no" on release branches.
320 AC_ARG_ENABLE(werror,
321 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
323 if test x$enable_werror = xyes ; then
328 # Enable expensive internal checks
329 AC_ARG_ENABLE(checking,
330 [ --enable-checking[=LIST]
331 enable expensive run-time checks. With LIST,
332 enable only specific categories of checks.
333 Categories are: misc,tree,rtl,rtlflag,gc,gcac;
334 default is misc,tree,gc,rtlflag],
340 ac_gc_always_collect=
341 case "${enableval}" in
342 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
343 ac_rtlflag_checking=1 ;;
345 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
346 set fnord $enableval; shift
351 misc) ac_checking=1 ;;
352 tree) ac_tree_checking=1 ;;
353 rtlflag) ac_rtlflag_checking=1 ;;
354 rtl) ac_rtl_checking=1 ;;
355 gc) ac_gc_checking=1 ;;
356 gcac) ac_gc_always_collect=1 ;;
357 valgrind) ac_checking_valgrind=1 ;;
358 *) AC_MSG_ERROR(unknown check category $check) ;;
364 # Enable some checks by default for development versions of GCC
365 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
367 if test x$ac_checking != x ; then
368 AC_DEFINE(ENABLE_CHECKING, 1,
369 [Define if you want more run-time sanity checks. This one gets a grab
370 bag of miscellaneous but relatively cheap checks.])
371 nocommon_flag=-fno-common
373 AC_SUBST(nocommon_flag)
374 if test x$ac_tree_checking != x ; then
375 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
376 [Define if you want all operations on trees (the basic data
377 structure of the front ends) to be checked for dynamic type safety
378 at runtime. This is moderately expensive.])
380 if test x$ac_rtl_checking != x ; then
381 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
382 [Define if you want all operations on RTL (the basic data structure
383 of the optimizer and back end) to be checked for dynamic type safety
384 at runtime. This is quite expensive.])
386 if test x$ac_rtlflag_checking != x ; then
387 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
388 [Define if you want RTL flag accesses to be checked against the RTL
389 codes that are supported for each access macro. This is relatively
392 if test x$ac_gc_checking != x ; then
393 AC_DEFINE(ENABLE_GC_CHECKING, 1,
394 [Define if you want the garbage collector to do object poisoning and
395 other memory allocation checks. This is quite expensive.])
397 if test x$ac_gc_always_collect != x ; then
398 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
399 [Define if you want the garbage collector to operate in maximally
400 paranoid mode, validating the entire heap and collecting garbage at
401 every opportunity. This is extremely expensive.])
403 valgrind_path_defines=
405 if test x$ac_checking_valgrind != x ; then
406 # It is certainly possible that there's valgrind but no valgrind.h.
407 # GCC relies on making annotations so we must have both.
408 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
410 [#include <memcheck.h>
411 #ifndef VALGRIND_DISCARD
412 #error VALGRIND_DISCARD not defined
414 [gcc_cv_header_memcheck_h=yes],
415 gcc_cv_header_memcheck_h=no)
416 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
417 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
418 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
419 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
420 if test "x$valgrind_path" = "x" || (test $have_valgrind_h = no && test $gcc_cv_header_memcheck_h = no); then
421 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h/memcheck.h])
423 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
424 valgrind_command="$valgrind_path -q"
425 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
426 [Define if you want to run subprograms and generated programs
427 through valgrind (a memory checker). This is extremely expensive.])
428 if test $gcc_cv_header_memcheck_h = yes; then
429 AC_DEFINE(HAVE_MEMCHECK_H, 1,
430 [Define if valgrind's memcheck.h header is installed.])
433 AC_SUBST(valgrind_path_defines)
434 AC_SUBST(valgrind_command)
436 # Enable code coverage collection
437 AC_ARG_ENABLE(coverage,
438 [ --enable-coverage[=LEVEL]
439 enable compiler\'s code coverage collection.
440 Use to measure compiler performance and locate
441 unused parts of the compiler. With LEVEL, specify
442 optimization. Values are opt, noopt,
444 [case "${enableval}" in
446 coverage_flags="-fprofile-arcs -ftest-coverage -O0 -DSELF_COVERAGE=1"
449 coverage_flags="-fprofile-arcs -ftest-coverage -O2 -DSELF_COVERAGE=2"
452 AC_MSG_ERROR(unknown coverage setting $enableval)
456 AC_SUBST(coverage_flags)
458 # -------------------------------
459 # Miscenalleous configure options
460 # -------------------------------
464 [ --with-stabs arrange to use stabs instead of host debug format],
470 [ --with-elf arrange to use ELF instead of host debug format],
474 # Determine whether or not multilibs are enabled.
475 AC_ARG_ENABLE(multilib,
476 [ --enable-multilib enable library support for multiple ABIs],
477 [], [enable_multilib=yes])
478 AC_SUBST(enable_multilib)
480 # Enable __cxa_atexit for C++.
481 AC_ARG_ENABLE(__cxa_atexit,
482 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
484 if test x$enable___cxa_atexit = xyes; then
485 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
486 [Define if you want to use __cxa_atexit, rather than atexit, to
487 register C++ destructors for local statics and global objects.
488 This is essential for fully standards-compliant handling of
489 destructors, but requires __cxa_atexit in libc.])
492 # Enable Multibyte Characters for C/C++
493 AC_ARG_ENABLE(c-mbchar,
494 [ --enable-c-mbchar enable multibyte characters for C and C++],
495 if test x$enable_c_mbchar != xno; then
496 AC_DEFINE(MULTIBYTE_CHARS, 1,
497 [Define if you want the C and C++ compilers to support multibyte
498 character sets for source code.])
502 # Pass with no value to take the default
503 # Pass with a value to specify a thread package
504 AC_ARG_ENABLE(threads,
505 [ --enable-threads enable thread usage for target GCC
506 --enable-threads=LIB use LIB thread package for target GCC],,
509 enable_threads_flag=$enable_threads
510 # Check if a valid thread package
511 case x${enable_threads_flag} in
514 target_thread_file='single'
518 target_thread_file=''
520 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
521 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix | xgnat)
522 target_thread_file=$enable_threads_flag
525 echo "$enable_threads is an unknown thread package" 1>&2
530 AC_ARG_ENABLE(objc-gc,
531 [ --enable-objc-gc enable the use of Boehm's garbage collector with
532 the GNU Objective-C runtime],
533 if test x$enable_objc_gc = xno; then
541 [ --with-dwarf2 force the default debug format to be DWARF 2],
542 dwarf2="$with_dwarf2",
545 AC_ARG_ENABLE(shared,
546 [ --disable-shared don't provide a shared libgcc],
548 case $enable_shared in
552 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
553 for pkg in $enableval; do
554 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
561 ], [enable_shared=yes])
562 AC_SUBST(enable_shared)
565 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
567 case ${with_sysroot} in
568 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
569 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
572 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
573 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
575 if test "x$exec_prefix" = xNONE; then
576 if test "x$prefix" = xNONE; then
577 test_prefix=/usr/local
582 test_prefix=$exec_prefix
584 case ${TARGET_SYSTEM_ROOT} in
585 "${test_prefix}"|"${test_prefix}/"*|\
586 '${exec_prefix}'|'${exec_prefix}/'*)
587 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
588 TARGET_SYSTEM_ROOT_DEFINE="$t"
593 TARGET_SYSTEM_ROOT_DEFINE=
594 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
596 AC_SUBST(TARGET_SYSTEM_ROOT)
597 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
598 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
600 # -------------------------
601 # Checks for other programs
602 # -------------------------
606 # Find some useful tools
613 # See if we have the mktemp command.
614 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
616 # Do we have a single-tree copy of texinfo?
617 if test -f $srcdir/../texinfo/Makefile.in; then
618 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
619 gcc_cv_prog_makeinfo_modern=yes
620 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
622 # See if makeinfo has been installed and is modern enough
623 # that we can use it.
624 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
625 [GNU texinfo.* \([0-9][0-9.]*\)],
629 if test $gcc_cv_prog_makeinfo_modern = no; then
631 *** Makeinfo is missing or too old.
632 *** Info documentation will not be built.])
635 BUILD_INFO=info AC_SUBST(BUILD_INFO)
638 # Is pod2man recent enough to regenerate manpages?
639 AC_MSG_CHECKING([for recent Pod::Man])
640 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
642 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
649 dnl Don't use AC_PROG_LEX; we insist on flex.
650 dnl LEXLIB is not useful in gcc.
651 if test -f $srcdir/../flex/skel.c; then
652 FLEX='$(objdir)/../flex/flex'
654 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
658 # The -L switch is so bison can find its skeleton file.
659 if test -f $srcdir/../bison/bison.simple; then
660 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
662 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
665 # --------------------
666 # Checks for C headers
667 # --------------------
669 AC_MSG_CHECKING(for GNU C library)
670 AC_CACHE_VAL(gcc_cv_glibc,
672 [#include <features.h>],[
673 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
674 #error Not a GNU C library system
678 AC_MSG_RESULT($gcc_cv_glibc)
679 if test $gcc_cv_glibc = yes; then
680 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
685 gcc_AC_HEADER_STDBOOL
688 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
689 fcntl.h unistd.h sys/file.h sys/time.h \
690 sys/resource.h sys/param.h sys/times.h sys/stat.h \
691 direct.h malloc.h langinfo.h ldfcn.h wchar.h)
693 # Check for thread headers.
694 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
695 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
697 # These tests can't be done till we know if we have limits.h.
705 # Stage specific cflags for build.
711 stage1_cflags="-Wa,-J"
717 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
718 # sources; use -no-cpp-precomp to get to GNU cpp.
719 # Apple's GCC has bugs in designated initializer handling, so disable
721 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
724 AC_SUBST(stage1_cflags)
726 # These libraries may be used by collect2.
727 # We may need a special search path to get them linked.
728 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
730 for libs in '' -lld -lmld \
731 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
732 '-L/usr/lib/cmplrs/cc3.11 -lmld'
735 AC_TRY_LINK_FUNC(ldopen,
736 [gcc_cv_collect2_libs="$libs"; break])
739 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
740 case $gcc_cv_collect2_libs in
742 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
744 AC_SUBST(COLLECT2_LIBS)
746 # When building Ada code on Alpha, we need exc_resume which is usually in
747 # -lexc. So test for it.
750 AC_SEARCH_LIBS(exc_resume, exc)
753 AC_SUBST(GNAT_LIBEXC)
755 # Some systems put ldexp and frexp in libm instead of libc; assume
756 # they're both in the same place. jcf-dump needs them.
759 AC_SEARCH_LIBS(ldexp, m)
764 # See if the stage1 system preprocessor understands the ANSI C
765 # preprocessor stringification operator. (Used by symcat.h.)
768 # Use <inttypes.h> only if it exists,
769 # doesn't clash with <sys/types.h>, and declares intmax_t.
770 AC_MSG_CHECKING(for inttypes.h)
771 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
773 [#include <sys/types.h>
774 #include <inttypes.h>],
776 [gcc_cv_header_inttypes_h=yes],
777 gcc_cv_header_inttypes_h=no)])
778 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
779 if test $gcc_cv_header_inttypes_h = yes; then
780 AC_DEFINE(HAVE_INTTYPES_H, 1,
781 [Define if you have a working <inttypes.h> header file.])
784 dnl Disabled until we have a complete test for buggy enum bitfields.
785 dnl gcc_AC_C_ENUM_BF_UNSIGNED
787 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
788 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
789 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
790 scandir alphasort gettimeofday mbstowcs wcswidth)
792 if test x$ac_cv_func_mbstowcs = xyes; then
793 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
794 [ AC_TRY_RUN([#include <stdlib.h>
800 gcc_cv_func_mbstowcs_works=yes,
801 gcc_cv_func_mbstowcs_works=no,
802 gcc_cv_func_mbstowcs_works=yes)])
803 if test x$gcc_cv_func_mbstowcs_works = xyes; then
804 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
805 [Define this macro if mbstowcs does not crash when its
806 first argument is NULL.])
810 AC_CHECK_TYPE(ssize_t, int)
812 # Try to determine the array type of the second argument of getgroups
813 # for the target system (int or gid_t).
815 if test "${target}" = "${build}"; then
816 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
819 # This condition may need some tweaking. It should include all
820 # targets where the array type of the second argument of getgroups
821 # is int and the type of gid_t is not equivalent to int.
822 *-*-sunos* | *-*-ultrix*)
823 TARGET_GETGROUPS_T=int
826 TARGET_GETGROUPS_T=gid_t
830 AC_SUBST(TARGET_GETGROUPS_T)
832 gcc_AC_FUNC_PRINTF_PTR
837 *** UWIN may not be used as a host platform because
838 *** linking with posix.dll is not allowed by the GNU GPL])
841 # Under VMS, vfork works very different than on Unix. The standard test
842 # won't work, and it isn't easily adaptable. It makes more sense to
844 ac_cv_func_vfork_works=yes
848 AC_FUNC_MMAP_ANYWHERE
853 # We will need to find libiberty.h and ansidecl.h
854 saved_CFLAGS="$CFLAGS"
855 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
856 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
857 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
858 fprintf_unlocked strstr errno vasprintf \
859 malloc realloc calloc free basename getopt clock, , ,[
860 #include "ansidecl.h"
861 #include "system.h"])
863 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
864 #include "ansidecl.h"
866 #ifdef HAVE_SYS_RESOURCE_H
867 #include <sys/resource.h>
872 #include "ansidecl.h"
874 #ifdef HAVE_SYS_RESOURCE_H
875 #include <sys/resource.h>
877 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
878 [Define to \`long' if <sys/resource.h> doesn't define.])])
880 gcc_AC_CHECK_DECLS(ldgetname, , ,[
881 #include "ansidecl.h"
888 gcc_AC_CHECK_DECLS(times, , ,[
889 #include "ansidecl.h"
891 #ifdef HAVE_SYS_TIMES_H
892 #include <sys/times.h>
896 # More time-related stuff.
897 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
899 #include "ansidecl.h"
901 #ifdef HAVE_SYS_TIMES_H
902 #include <sys/times.h>
904 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
905 if test $ac_cv_struct_tms = yes; then
906 AC_DEFINE(HAVE_STRUCT_TMS, 1,
907 [Define if <sys/times.h> defines struct tms.])
910 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
911 # revisit after autoconf 2.50.
912 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
914 #include "ansidecl.h"
916 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
917 if test $gcc_cv_type_clock_t = yes; then
918 AC_DEFINE(HAVE_CLOCK_T, 1,
919 [Define if <time.h> defines clock_t.])
922 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
924 #include "ansidecl.h"
927 [if ((uchar *)0) return 0;
928 if (sizeof(uchar)) return 0;],
929 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
930 if test $ac_cv_type_uchar = yes; then
931 AC_DEFINE(HAVE_UCHAR, 1,
932 [Define if <sys/types.h> defines \`uchar'.])
935 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
936 CFLAGS="$saved_CFLAGS"
938 gcc_AC_INITFINI_ARRAY
940 # mkdir takes a single argument on some systems.
941 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
949 # With Setjmp/Longjmp based exception handling.
950 AC_ARG_ENABLE(sjlj-exceptions,
951 [ --enable-sjlj-exceptions
952 arrange to use setjmp/longjmp exception handling],
953 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
954 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
955 [Define 0/1 to force the choice for exception handling model.])])
957 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
958 # Use libunwind based exception handling.
959 AC_ARG_ENABLE(libunwind-exceptions,
960 [ --enable-libunwind-exceptions force use libunwind for exceptions],
961 use_libunwind_exceptions=$enableval,
962 use_libunwind_exceptions=$use_libunwind_default)
963 if test x"$use_libunwind_exceptions" = xyes; then
964 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
965 [Define if gcc should use -lunwind.])
968 # --------------------------------------------------------
969 # Build, host, and target specific configuration fragments
970 # --------------------------------------------------------
975 build_install_headers_dir=install-headers-tar
980 host_truncate_target=
983 # Decode the host machine, then the target machine.
984 # For the host machine, we save the xm_file variable as host_xm_file;
985 # then we decode the target machine and forget everything else
986 # that came from the host machine.
987 for machine in $build $host $target; do
988 . ${srcdir}/config.gcc
991 extra_objs="${host_extra_objs} ${extra_objs}"
993 # Default the target-machine variables that were not explicitly set.
994 if test x"$tm_file" = x
995 then tm_file=$cpu_type/$cpu_type.h; fi
997 if test x"$extra_headers" = x
998 then extra_headers=; fi
1000 if test x$md_file = x
1001 then md_file=$cpu_type/$cpu_type.md; fi
1003 if test x$out_file = x
1004 then out_file=$cpu_type/$cpu_type.c; fi
1006 if test x"$tmake_file" = x
1007 then tmake_file=$cpu_type/t-$cpu_type
1010 if test x"$dwarf2" = xyes
1011 then tm_file="$tm_file tm-dwarf2.h"
1014 # Say what files are being used for the output code and MD file.
1015 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1016 echo "Using \`$srcdir/config/$md_file' as machine description file."
1018 # If any of the xm_file variables contain nonexistent files, warn
1019 # about them and drop them.
1022 for x in $build_xm_file; do
1023 if test -f $srcdir/config/$x
1025 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1031 for x in $host_xm_file; do
1032 if test -f $srcdir/config/$x
1034 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1040 for x in $xm_file; do
1041 if test -f $srcdir/config/$x
1043 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1049 for f in $tm_file; do
1052 if test $count = ax; then
1053 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1055 echo "Using the following target machine macro files:"
1056 for f in $tm_file; do
1057 echo " $srcdir/config/$f"
1061 if test x$need_64bit_hwint = xyes; then
1062 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1063 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1067 for f in $host_xm_file; do
1070 if test $count = a; then
1072 elif test $count = ax; then
1073 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1075 echo "Using the following host machine macro files:"
1076 for f in $host_xm_file; do
1077 echo " $srcdir/config/$f"
1080 echo "Using ${out_host_hook_obj} for host machine hooks."
1082 if test "$host_xm_file" != "$build_xm_file"; then
1084 for f in $build_xm_file; do
1087 if test $count = a; then
1089 elif test $count = ax; then
1090 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1092 echo "Using the following build machine macro files:"
1093 for f in $build_xm_file; do
1094 echo " $srcdir/config/$f"
1099 if test x$thread_file = x; then
1100 if test x$target_thread_file != x; then
1101 thread_file=$target_thread_file
1103 thread_file='single'
1107 # Look for a file containing extra machine modes.
1108 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1109 extra_modes_file='$(srcdir)'/config/${extra_modes}
1110 AC_SUBST(extra_modes_file)
1111 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1112 [Define to the name of a file containing a list of extra machine modes
1113 for this architecture.])
1114 AC_DEFINE(EXTRA_CC_MODES, 1,
1115 [Define if the target architecture needs extra machine modes to represent
1116 the results of comparisons.])
1119 # auto-host.h is the file containing items generated by autoconf and is
1120 # the first file included by config.h.
1121 # If host=build, it is correct to have bconfig include auto-host.h
1122 # as well. If host!=build, we are in error and need to do more
1123 # work to find out the build config parameters.
1124 if test x$host = x$build
1126 build_auto=auto-host.h
1129 # We create a subdir, then run autoconf in the subdir.
1130 # To prevent recursion we set host and build for the new
1131 # invocation of configure to the build for this invocation
1138 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1139 *) realsrcdir=../${srcdir};;
1141 saved_CFLAGS="${CFLAGS}"
1142 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1143 ${realsrcdir}/configure \
1144 --target=$target_alias --host=$build_alias --build=$build_alias
1145 CFLAGS="${saved_CFLAGS}"
1147 # We just finished tests for the build machine, so rename
1148 # the file auto-build.h in the gcc directory.
1149 mv auto-host.h ../auto-build.h
1152 build_auto=auto-build.h
1153 FORBUILD=../build-$build_alias
1157 tm_file="${tm_file} defaults.h"
1158 tm_p_file="${tm_p_file} tm-preds.h"
1159 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1160 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1161 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1162 # put this back in temporarily.
1163 xm_file="ansidecl.h ${xm_file}"
1169 # Truncate the target if necessary
1170 if test x$host_truncate_target != x; then
1171 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1174 # Get the version trigger filename from the toplevel
1175 if test "${with_gcc_version_trigger+set}" = set; then
1176 gcc_version_trigger=$with_gcc_version_trigger
1178 gcc_version_trigger=${srcdir}/version.c
1181 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1182 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1184 # Compile in configure arguments.
1185 if test -f configargs.h ; then
1186 # Being re-configured.
1187 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1188 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1190 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1192 cat > configargs.h <<EOF
1193 /* Generated automatically. */
1194 static const char configuration_arguments[] = "$gcc_config_arguments";
1195 static const char thread_model[] = "$thread_file";
1199 # Internationalization
1201 VERSION="$gcc_version"
1205 # Enable NLS support by default
1207 [ --enable-nls use Native Language Support (default)],
1210 # if cross compiling, disable NLS support.
1211 # It's not worth the trouble, at least for now.
1213 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
1214 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
1220 # Windows32 Registry support for specifying GCC installation paths.
1221 AC_ARG_ENABLE(win32-registry,
1222 [ --disable-win32-registry
1223 disable lookup of installation paths in the
1224 Registry on Windows hosts
1225 --enable-win32-registry enable registry lookup (default)
1226 --enable-win32-registry=KEY
1227 use KEY instead of GCC version as the last portion
1228 of the registry key],,)
1230 win32 | pe | cygwin* | mingw32* | uwin*)
1231 AC_MSG_CHECKING(whether windows registry support is requested)
1232 if test "x$enable_win32_registry" != xno; then
1233 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1234 [Define to 1 if installation paths should be looked up in Windows32
1235 Registry. Ignored on non windows32 hosts.])
1237 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1242 # Check if user specified a different registry key.
1243 case "x${enable_win32_registry}" in
1246 gcc_cv_win32_registry_key="$VERSION"
1249 # no registry lookup.
1250 gcc_cv_win32_registry_key=''
1253 # user-specified key.
1254 gcc_cv_win32_registry_key="$enable_win32_registry"
1258 if test "x$enable_win32_registry" != xno; then
1259 AC_MSG_CHECKING(registry key on windows hosts)
1260 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1261 [Define to be the last portion of registry key on windows hosts.])
1262 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1267 # Get an absolute path to the GCC top-level source directory
1268 holddir=`${PWDCMD-pwd}`
1270 topdir=`${PWDCMD-pwd}`
1273 # Conditionalize the makefile for this host machine.
1274 # Make-host contains the concatenation of all host makefile fragments
1275 # [there can be more than one]. This file is built by configure.frag.
1276 host_overrides=Make-host
1277 dep_host_xmake_file=
1278 for f in .. ${host_xmake_file}
1280 if test -f ${srcdir}/config/$f
1282 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1286 # Conditionalize the makefile for this target machine.
1287 # Make-target contains the concatenation of all host makefile fragments
1288 # [there can be more than one]. This file is built by configure.frag.
1289 target_overrides=Make-target
1291 for f in .. ${tmake_file}
1293 if test -f ${srcdir}/config/$f
1295 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1299 symbolic_link='ln -s'
1301 # If the host doesn't support symlinks, modify CC in
1302 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1303 # Otherwise, we can use "CC=$(CC)".
1305 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1307 cc_set_by_configure="\$(CC)"
1308 quoted_cc_set_by_configure="\$(CC)"
1309 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1310 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1313 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1315 symbolic_link="cp -p"
1319 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1320 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1321 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1322 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1326 out_object_file=`basename $out_file .c`.o
1329 for f in $tm_file; do
1332 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1334 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1335 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1340 for f in $tm_p_file; do
1343 tm_p_file_list="${tm_p_file_list} $f" ;;
1344 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1349 for f in $host_xm_file; do
1352 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1354 host_xm_file_list="${host_xm_file_list} $f" ;;
1356 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1357 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1362 for f in $build_xm_file; do
1365 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1366 auto-build.h | auto-host.h )
1367 build_xm_file_list="${build_xm_file_list} $f" ;;
1369 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1370 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1374 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1375 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1376 CROSS= AC_SUBST(CROSS)
1377 ALL=all.internal AC_SUBST(ALL)
1378 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1379 if test x$host != x$target
1381 CROSS="-DCROSS_COMPILE"
1383 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1384 case "$host","$target" in
1385 i?86-*-*,x86_64-*-* \
1386 | powerpc*-*-*,powerpc64*-*-*)
1387 CROSS="$CROSS -DNATIVE_CROSS" ;;
1389 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1390 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1391 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1394 # If this is a cross-compiler that does not
1395 # have its own set of headers then define
1398 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1399 # This prevents libgcc2 from containing any code which requires libc
1402 if { test x$host != x$target && test "x$with_headers" = x &&
1403 test "x$with_sysroot" = x ; } || test x$with_newlib = xyes ; then
1404 inhibit_libc=-Dinhibit_libc
1406 AC_SUBST(inhibit_libc)
1408 # When building gcc with a cross-compiler, we need to adjust things so
1409 # that the generator programs are still built with the native compiler.
1410 # Also, we cannot run fixincludes or fix-header.
1412 # These are the normal (build=host) settings:
1413 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1414 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1415 BUILD_CC='$(CC)' AC_SUBST(BUILD_CC)
1416 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1418 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1419 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1421 # And these apply if build != host.
1422 if test x$build != x$host
1425 BUILD_PREFIX_1=build-
1426 BUILD_CC='$(CC_FOR_BUILD)'
1427 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1429 if test "x$TARGET_SYSTEM_ROOT" = x; then
1435 # Expand extra_headers to include complete path.
1436 # This substitutes for lots of t-* files.
1438 if test "x$extra_headers" = x
1441 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1442 for file in $extra_headers;
1444 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1448 # Add a definition of USE_COLLECT2 if system wants one.
1449 case $use_collect2 in
1450 no) use_collect2= ;;
1453 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1454 xm_defines="${xm_defines} USE_COLLECT2"
1458 # Identify the assembler which will work hand-in-glove with the newly
1459 # built GCC, so that we can examine its features. This is the assembler
1460 # which will be driven by the driver program.
1462 # If build != host, and we aren't building gas in-tree, we identify a
1463 # build->target assembler and hope that it will have the same features
1464 # as the host->target assembler we'll be using.
1465 AC_MSG_CHECKING(what assembler to use)
1468 gcc_cv_gas_major_version=
1469 gcc_cv_gas_minor_version=
1470 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1471 if test -x "$DEFAULT_ASSEMBLER"; then
1472 gcc_cv_as="$DEFAULT_ASSEMBLER"
1473 elif test -x "$AS"; then
1475 elif test -x as$host_exeext; then
1476 # Build using assembler in the current directory.
1477 gcc_cv_as=./as$host_exeext
1478 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1479 && test -f ../gas/Makefile; then
1480 # Single tree build which includes gas.
1482 _gcc_COMPUTE_GAS_VERSION
1483 rm -f as$host_exeext
1484 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1487 if test "x$gcc_cv_as" = x; then
1488 # Search the same directories that the installed compiler will
1489 # search. Else we may find the wrong assembler and lose. If we
1490 # do not find a suitable assembler binary, then try the user's
1493 # Also note we have to check MD_EXEC_PREFIX before checking the
1494 # user's path. Unfortunately, there is no good way to get at the
1495 # value of MD_EXEC_PREFIX here. So we do a brute force search
1496 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1497 # to be fixed as part of the make/configure rewrite too.
1499 if test "x$exec_prefix" = xNONE; then
1500 if test "x$prefix" = xNONE; then
1501 test_prefix=/usr/local
1506 test_prefix=$exec_prefix
1509 # If the loop below does not find an assembler, then use whatever
1510 # one we can find in the users's path.
1512 if test "x$program_prefix" != xNONE; then
1513 gcc_cv_as=${program_prefix}as$host_exeext
1515 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1518 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1519 $test_prefix/lib/gcc-lib/$target_alias \
1520 /usr/lib/gcc/$target_alias/$gcc_version \
1521 /usr/lib/gcc/$target_alias \
1522 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1523 $test_prefix/$target_alias/bin"
1525 if test x$host = x$target; then
1526 test_dirs="$test_dirs \
1531 /bsd43/usr/lib/cmplrs/cc \
1532 /usr/cross64/usr/bin \
1533 /usr/lib/cmplrs/cc \
1534 /sysv/usr/lib/cmplrs/cc \
1535 /svr4/usr/lib/cmplrs/cc \
1539 for dir in $test_dirs; do
1540 if test -x $dir/as$host_exeext; then
1541 gcc_cv_as=$dir/as$host_exeext
1546 case $in_tree_gas in
1548 AC_MSG_RESULT("newly built gas")
1551 AC_MSG_RESULT($gcc_cv_as)
1555 # Identify the linker which will work hand-in-glove with the newly
1556 # built GCC, so that we can examine its features. This is the linker
1557 # which will be driven by the driver program.
1559 # If build != host, and we aren't building gas in-tree, we identify a
1560 # build->target linker and hope that it will have the same features
1561 # as the host->target linker we'll be using.
1562 AC_MSG_CHECKING(what linker to use)
1565 gcc_cv_gld_major_version=
1566 gcc_cv_gld_minor_version=
1567 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1568 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1569 if test -x "$DEFAULT_LINKER"; then
1570 gcc_cv_ld="$DEFAULT_LINKER"
1571 elif test -x "$LD"; then
1573 elif test -x collect-ld$host_exeext; then
1574 # Build using linker in the current directory.
1575 gcc_cv_ld=./collect-ld$host_exeext
1576 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1577 && test -f ../ld/Makefile; then
1578 # Single tree build which includes ld.
1580 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
1583 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1585 if test x$gcc_cv_gld_version != x; then
1590 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1591 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1593 rm -f collect-ld$host_exeext
1594 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1598 if test "x$gcc_cv_ld" = x; then
1599 # Search the same directories that the installed compiler will
1600 # search. Else we may find the wrong linker and lose. If we
1601 # do not find a suitable linker binary, then try the user's
1604 # Also note we have to check MD_EXEC_PREFIX before checking the
1605 # user's path. Unfortunately, there is no good way to get at the
1606 # value of MD_EXEC_PREFIX here. So we do a brute force search
1607 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1608 # to be fixed as part of the make/configure rewrite too.
1610 if test "x$exec_prefix" = xNONE; then
1611 if test "x$prefix" = xNONE; then
1612 test_prefix=/usr/local
1617 test_prefix=$exec_prefix
1620 # If the loop below does not find an linker, then use whatever
1621 # one we can find in the users's path.
1623 if test "x$program_prefix" != xNONE; then
1624 gcc_cv_ld=${program_prefix}ld$host_exeext
1626 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1629 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1630 $test_prefix/lib/gcc-lib/$target_alias \
1631 /usr/lib/gcc/$target_alias/$gcc_version \
1632 /usr/lib/gcc/$target_alias \
1633 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1634 $test_prefix/$target_alias/bin"
1636 if test x$host = x$target; then
1637 test_dirs="$test_dirs \
1642 /bsd43/usr/lib/cmplrs/cc \
1643 /usr/cross64/usr/bin \
1644 /usr/lib/cmplrs/cc \
1645 /sysv/usr/lib/cmplrs/cc \
1646 /svr4/usr/lib/cmplrs/cc \
1650 for dir in $test_dirs; do
1651 if test -x $dir/ld$host_exeext; then
1652 gcc_cv_ld=$dir/ld$host_exeext
1659 AC_MSG_RESULT("newly built ld")
1662 AC_MSG_RESULT($gcc_cv_ld)
1666 # Figure out what nm we will be using.
1667 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1668 AC_MSG_CHECKING(what nm to use)
1670 if test -x nm$host_exeext; then
1671 gcc_cv_nm=./nm$host_exeext
1672 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1673 && test -f ../binutils/Makefile; then
1674 # Single tree build which includes binutils.
1676 gcc_cv_nm=./nm$host_exeext
1677 rm -f nm$host_exeext
1678 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1679 elif test "x$program_prefix" != xNONE; then
1680 gcc_cv_nm=${program_prefix}nm$host_exeext
1682 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1685 yes) AC_MSG_RESULT("newly built nm") ;;
1686 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1689 # Figure out what objdump we will be using.
1690 AC_MSG_CHECKING(what objdump to use)
1692 if test -x objdump$host_exeext; then
1693 gcc_cv_objdump=./objdump$host_exeext
1694 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1695 && test -f ../binutils/Makefile; then
1696 # Single tree build which includes binutils.
1698 gcc_cv_objdump=./objdump$host_exeext
1699 rm -f objdump$host_exeext
1700 $symbolic_link ../binutils/objdump$host_exeext \
1701 objdump$host_exeext 2>/dev/null
1702 elif test "x$program_prefix" != xNONE; then
1703 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1705 gcc_cv_objdump=`echo objdump | \
1706 sed ${program_transform_name}`$host_exeext
1708 case $in_tree_objdump in
1709 yes) AC_MSG_RESULT("newly built objdump") ;;
1710 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1713 # Figure out what assembler alignment features are present.
1714 AC_MSG_CHECKING(assembler alignment features)
1715 gcc_cv_as_alignment_features=none
1716 if test $in_tree_gas = yes; then
1717 # Gas version 2.6 and later support for .balign and .p2align.
1718 gcc_GAS_VERSION_GTE_IFELSE(2,6,0,[
1719 gcc_cv_as_alignment_features=".balign and .p2align"
1720 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1722 # Gas version 2.8 and later support specifying the maximum
1723 # bytes to skip when using .p2align.
1724 gcc_GAS_VERSION_GTE_IFELSE(2,8,0,[
1725 gcc_cv_as_alignment_features=".p2align including maximum skip"
1726 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1728 elif test x$gcc_cv_as != x; then
1729 # Check if we have .balign and .p2align
1730 echo ".balign 4" > conftest.s
1731 echo ".p2align 2" >> conftest.s
1732 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1733 gcc_cv_as_alignment_features=".balign and .p2align"
1734 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1736 rm -f conftest.s conftest.o
1737 # Check if specifying the maximum bytes to skip when
1738 # using .p2align is supported.
1739 echo ".p2align 4,,7" > conftest.s
1740 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1741 gcc_cv_as_alignment_features=".p2align including maximum skip"
1742 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1744 rm -f conftest.s conftest.o
1746 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1748 AC_MSG_CHECKING(assembler subsection support)
1749 gcc_cv_as_subsections=no
1750 if test $in_tree_gas = yes ; then
1751 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
1752 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1753 gcc_cv_as_subsections="working .subsection -1"
1756 elif test x$gcc_cv_as != x; then
1757 # Check if we have .subsection
1758 echo ".subsection 1" > conftest.s
1759 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1760 gcc_cv_as_subsections=".subsection"
1761 if test x$gcc_cv_nm != x; then
1762 cat > conftest.s <<EOF
1763 conftest_label1: .word 0
1765 conftest_label2: .word 0
1768 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1769 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1770 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1771 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1774 gcc_cv_as_subsections="working .subsection -1"
1779 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1781 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1782 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1783 [Define if your assembler supports .subsection and .subsection -1 starts
1784 emitting at the beginning of your section.])
1786 AC_MSG_RESULT($gcc_cv_as_subsections)
1788 AC_MSG_CHECKING(assembler weak support)
1790 if test $in_tree_gas = yes ; then
1791 gcc_GAS_VERSION_GTE_IFELSE(2,2,0,[
1792 gcc_cv_as_weak="yes"
1794 elif test x$gcc_cv_as != x; then
1795 # Check if we have .weak
1796 echo " .weak foobar" > conftest.s
1797 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1798 gcc_cv_as_weak="yes"
1800 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1802 if test x"$gcc_cv_as_weak" = xyes; then
1803 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1805 AC_MSG_RESULT($gcc_cv_as_weak)
1807 AC_MSG_CHECKING(assembler hidden support)
1809 if test $in_tree_gas = yes ; then
1810 gcc_GAS_VERSION_GTE_IFELSE(2,12,1,[
1811 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1812 gcc_cv_as_hidden="yes"
1815 elif test x$gcc_cv_as != x; then
1816 # Check if we have .hidden
1817 echo " .hidden foobar" > conftest.s
1818 echo "foobar:" >> conftest.s
1819 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1820 gcc_cv_as_hidden="yes"
1822 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1824 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1825 # This is irritatingly difficult to feature test for. Look for
1826 # the date string after the version number.
1827 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1828 if echo "$ld_ver" | grep GNU > /dev/null; then
1830 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\([ ].*\|\)$,\1,p'`
1831 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1832 if test 0"$ld_date" -lt 20020404; then
1833 if test -n "$ld_date"; then
1834 # If there was date string, but was earlier than 2002-04-04, fail
1835 gcc_cv_as_hidden="no"
1836 elif test -z "$ld_vers"; then
1837 # If there was no date string nor ld version number, something is wrong
1838 gcc_cv_as_hidden="no"
1840 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1841 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1842 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1843 test -z "$ld_vers_patch" && ld_vers_patch=0
1844 if test "$ld_vers_major" -lt 2; then
1845 gcc_cv_as_hidden="no"
1846 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1847 gcc_cv_as_hidden="no"
1848 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1849 -a "$ld_vers_patch" -eq 0; then
1850 gcc_cv_as_hidden="no"
1857 if test x"$gcc_cv_as_hidden" = xyes; then
1858 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1859 [Define if your assembler supports .hidden.])
1861 AC_MSG_RESULT($gcc_cv_as_hidden)
1862 libgcc_visibility=$gcc_cv_as_hidden
1865 if test x"$gnu_ld_flag" = x"no"; then
1866 # Even if using gas with .hidden support, the resulting object files
1867 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1868 # N64 linkers, the problem is that the linker refuses to accept
1869 # -call_shared (passed by default to the linker) and -r (used to
1870 # link the object file generated without .hidden directives with
1871 # one that hides symbols), so we also lose.
1872 libgcc_visibility=no
1876 AC_SUBST(libgcc_visibility)
1878 AC_MSG_CHECKING(assembler leb128 support)
1880 if test $in_tree_gas = yes ; then
1881 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
1882 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1883 gcc_cv_as_leb128="yes"
1886 elif test x$gcc_cv_as != x; then
1887 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1888 cat > conftest.s <<EOF
1896 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1897 gcc_cv_as_leb128="yes"
1899 # GAS versions before 2.11 do not support uleb128,
1900 # despite appearing to.
1901 # ??? There exists an elf-specific test that will crash
1902 # the assembler. Perhaps it's better to figure out whether
1903 # arbitrary sections are supported and try the test.
1904 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1905 if echo "$as_ver" | grep GNU > /dev/null; then
1907 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1908 as_major=`echo $as_ver | sed 's/\..*//'`
1909 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1911 if test $as_major -eq 2 -a $as_minor -lt 11; then
1912 gcc_cv_as_leb128="no"
1916 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1918 if test x"$gcc_cv_as_leb128" = xyes; then
1919 AC_DEFINE(HAVE_AS_LEB128, 1,
1920 [Define if your assembler supports .uleb128.])
1922 AC_MSG_RESULT($gcc_cv_as_leb128)
1924 AC_MSG_CHECKING(assembler eh_frame optimization)
1925 gcc_cv_as_eh_frame=no
1926 if test $in_tree_gas = yes ; then
1927 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1928 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1929 gcc_cv_as_eh_frame="yes"
1932 elif test x$gcc_cv_as != x; then
1933 # Check if this is GAS.
1934 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1935 rm -f a.out 2> /dev/null
1936 if echo "$as_ver" | grep GNU > /dev/null; then
1937 # Versions up to and including 2.11.0 may mis-optimize
1938 # .eh_frame data. Try something.
1939 cat > conftest.s <<EOF
1946 .section .eh_frame,"aw",@progbits
1948 .4byte .LECIE1-.LSCIE1
1962 .4byte .LEFDE1-.LASFDE1
1964 .4byte .LASFDE1-__FRAME_BEGIN__
1973 cat > conftest.lit <<EOF
1974 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1975 0010 01000000 12000000 18000000 00000000 ................
1976 0020 08000000 04080000 0044 .........D
1978 cat > conftest.big <<EOF
1979 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1980 0010 00000001 00000012 00000018 00000000 ................
1981 0020 00000008 04000000 0844 .........D
1983 # If the assembler didn't choke, and we can objdump,
1984 # and we got the correct data, then succeed.
1985 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1986 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1987 | tail -3 > conftest.got \
1988 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1989 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1991 gcc_cv_as_eh_frame="yes"
1993 gcc_cv_as_eh_frame="bad"
1994 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1995 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1996 [Define if your assembler mis-optimizes .eh_frame data.])
2002 AC_MSG_RESULT($gcc_cv_as_eh_frame)
2004 AC_MSG_CHECKING(assembler section merging support)
2005 gcc_cv_as_shf_merge=no
2006 if test $in_tree_gas = yes ; then
2007 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2008 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
2009 gcc_cv_as_shf_merge=yes
2012 elif test x$gcc_cv_as != x; then
2013 # Check if we support SHF_MERGE sections
2014 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
2015 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
2016 gcc_cv_as_shf_merge=yes
2018 rm -f conftest.s conftest.o
2020 if test x"$gcc_cv_as_shf_merge" = xyes; then
2021 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
2022 [Define if your assembler supports marking sections with SHF_MERGE flag.])
2024 AC_MSG_RESULT($gcc_cv_as_shf_merge)
2026 AC_MSG_CHECKING(assembler thread-local storage support)
2035 .section ".tdata","awT",@progbits
2038 ldq $27,__tls_get_addr($29) !literal!1
2039 lda $16,foo($29) !tlsgd!1
2040 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2041 ldq $27,__tls_get_addr($29) !literal!2
2042 lda $16,foo($29) !tlsldm!2
2043 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2044 ldq $1,foo($29) !gotdtprel
2045 ldah $2,foo($29) !dtprelhi
2046 lda $3,foo($2) !dtprello
2047 lda $4,foo($29) !dtprel
2048 ldq $1,foo($29) !gottprel
2049 ldah $2,foo($29) !tprelhi
2050 lda $3,foo($2) !tprello
2051 lda $4,foo($29) !tprel'
2058 .section ".tdata","awT",@progbits
2062 leal foo@TLSGD(,%ebx,1), %eax
2063 leal foo@TLSLDM(%ebx), %eax
2064 leal foo@DTPOFF(%eax), %edx
2065 movl foo@GOTTPOFF(%ebx), %eax
2066 subl foo@GOTTPOFF(%ebx), %eax
2067 addl foo@GOTNTPOFF(%ebx), %eax
2068 movl foo@INDNTPOFF, %eax
2069 movl $foo@TPOFF, %eax
2070 subl $foo@TPOFF, %eax
2071 leal foo@NTPOFF(%ecx), %eax'
2077 .section ".tdata","awT",@progbits
2081 leaq foo@TLSGD(%rip), %rdi
2082 leaq foo@TLSLD(%rip), %rdi
2083 leaq foo@DTPOFF(%rax), %rdx
2084 movq foo@GOTTPOFF(%rip), %rax
2085 movq $foo@TPOFF, %rax'
2091 .section ".tdata","awT",@progbits
2094 addl r16 = @ltoff(@dtpmod(foo#)), gp
2095 addl r17 = @ltoff(@dtprel(foo#)), gp
2096 addl r18 = @ltoff(@tprel(foo#)), gp
2097 addl r19 = @dtprel(foo#), gp
2098 adds r21 = @dtprel(foo#), r13
2099 movl r23 = @dtprel(foo#)
2100 addl r20 = @tprel(foo#), gp
2101 adds r22 = @tprel(foo#), r13
2102 movl r24 = @tprel(foo#)'
2108 .section ".tdata","awT",@progbits
2117 l %r1,foo@GOTNTPOFF(%r12)
2118 l %r1,0(%r1):tls_load:foo
2119 bas %r14,0(%r1,%r13):tls_gdcall:foo
2120 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2126 .section ".tdata","awT",@progbits
2134 lg %r1,foo@GOTNTPOFF(%r12)
2135 larl %r1,foo@INDNTPOFF
2136 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2137 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2142 if test -z "$tls_first_major"; then
2144 elif test $in_tree_gas = yes ; then
2145 gcc_GAS_VERSION_GTE_IFELSE($tls_first_major,$tls_first_minor,0,[
2148 elif test x$gcc_cv_as != x; then
2149 echo "$conftest_s" > conftest.s
2150 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
2154 rm -f conftest.s conftest.o
2156 if test "$gcc_cv_as_tls" = yes; then
2157 AC_DEFINE(HAVE_AS_TLS, 1,
2158 [Define if your assembler supports thread-local storage.])
2160 AC_MSG_RESULT($gcc_cv_as_tls)
2163 # All TARGET_ABI_OSF targets.
2164 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2165 AC_CACHE_CHECK([assembler supports explicit relocations],
2166 gcc_cv_as_explicit_relocs, [
2167 gcc_cv_as_explicit_relocs=unknown
2168 if test $in_tree_gas = yes ; then
2169 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2170 gcc_cv_as_explicit_relocs=yes
2172 elif test x$gcc_cv_as != x; then
2173 cat > conftest.s << 'EOF'
2176 extbl $3, $2, $3 !lituse_bytoff!1
2177 ldq $2, a($29) !literal!1
2178 ldq $4, b($29) !literal!2
2179 ldq_u $3, 0($2) !lituse_base!1
2180 ldq $27, f($29) !literal!5
2181 jsr $26, ($27), f !lituse_jsr!5
2182 ldah $29, 0($26) !gpdisp!3
2183 lda $0, c($29) !gprel
2184 ldah $1, d($29) !gprelhigh
2185 lda $1, d($1) !gprellow
2186 lda $29, 0($29) !gpdisp!3
2188 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2189 gcc_cv_as_explicit_relocs=yes
2191 gcc_cv_as_explicit_relocs=no
2193 rm -f conftest.s conftest.o
2196 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2197 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2198 [Define if your assembler supports explicit relocations.])
2202 AC_CACHE_CHECK([assembler .register pseudo-op support],
2203 gcc_cv_as_register_pseudo_op, [
2204 gcc_cv_as_register_pseudo_op=unknown
2205 if test x$gcc_cv_as != x; then
2206 # Check if we have .register
2207 echo ".register %g2, #scratch" > conftest.s
2208 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2209 gcc_cv_as_register_pseudo_op=yes
2211 gcc_cv_as_register_pseudo_op=no
2213 rm -f conftest.s conftest.o
2216 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2217 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2218 [Define if your assembler supports .register.])
2221 AC_CACHE_CHECK([assembler supports -relax],
2222 gcc_cv_as_relax_opt, [
2223 gcc_cv_as_relax_opt=unknown
2224 if test x$gcc_cv_as != x; then
2225 # Check if gas supports -relax
2226 echo ".text" > conftest.s
2227 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2228 gcc_cv_as_relax_opt=yes
2230 gcc_cv_as_relax_opt=no
2232 rm -f conftest.s conftest.o
2235 if test "x$gcc_cv_as_relax_opt" = xyes; then
2236 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2237 [Define if your assembler supports -relax option.])
2240 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2241 gcc_cv_as_sparc_ua_pcrel, [
2242 gcc_cv_as_sparc_ua_pcrel=unknown
2243 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2244 gcc_cv_as_sparc_ua_pcrel=no
2245 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2246 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2247 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2248 gcc_cv_as_sparc_ua_pcrel=yes
2250 rm -f conftest.s conftest.o conftest
2253 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2254 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2255 [Define if your assembler and linker support unaligned PC relative relocs.])
2258 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2259 gcc_cv_as_sparc_ua_pcrel_hidden, [
2260 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2261 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2262 if test x$gcc_cv_objdump != x; then
2263 gcc_cv_as_sparc_ua_pcrel_hidden=no
2264 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2265 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2266 echo "foo: .skip 4" >> conftest.s
2267 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
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 $gcc_cv_objdump -R conftest 2> /dev/null \
2272 | grep 'DISP32' > /dev/null 2>&1; then
2275 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2279 rm -f conftest.s conftest.o conftest
2281 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2284 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2285 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2286 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2289 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2290 gcc_cv_as_offsetable_lo10, [
2291 gcc_cv_as_offsetable_lo10=unknown
2292 if test "x$gcc_cv_as" != x; then
2293 # Check if assembler has offsetable %lo()
2294 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2295 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2296 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2298 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2299 > /dev/null 2>&1; then
2300 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2301 gcc_cv_as_offsetable_lo10=no
2303 gcc_cv_as_offsetable_lo10=yes
2306 gcc_cv_as_offsetable_lo10=no
2308 rm -f conftest.s conftest.o conftest1.s conftest1.o
2311 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2312 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2313 [Define if your assembler supports offsetable %lo().])
2319 i[34567]86-*-* | x86_64-*-*)
2321 AC_MSG_CHECKING(assembler instructions)
2322 gcc_cv_as_instructions=
2323 if test $in_tree_gas = yes ; then
2324 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
2325 gcc_cv_as_instructions="filds fists"
2327 elif test x$gcc_cv_as != x; then
2328 set "filds fists" "filds mem; fists mem"
2331 echo "$2" > conftest.s
2332 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2333 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2337 rm -f conftest.s conftest.o
2339 if test x"$gcc_cv_as_instructions" != x; then
2340 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2342 AC_MSG_RESULT($gcc_cv_as_instructions)
2344 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2345 gcc_cv_as_gotoff_in_data=no
2346 if test $in_tree_gas = yes ; then
2347 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2348 gcc_cv_as_gotoff_in_data=yes
2350 elif test x$gcc_cv_as != x; then
2351 cat > conftest.s <<EOF
2358 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2359 gcc_cv_as_gotoff_in_data=yes
2362 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2363 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2364 [Define true if the assembler supports '.long foo@GOTOFF'.])
2365 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2369 AC_CACHE_CHECK([assembler supports ltoffx and ldxmov],
2370 gcc_cv_as_ltoffx_ldxmov_relocs, [
2371 gcc_cv_as_ltoffx_ldxmov_relocs=unknown
2372 if test $in_tree_gas = yes ; then
2373 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2374 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2376 elif test x$gcc_cv_as != x; then
2377 cat > conftest.s << 'EOF'
2380 addl r15 = @ltoffx(x#), gp
2382 ld8.mov r16 = [r15], x#
2385 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2386 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2388 gcc_cv_as_ltoffx_ldxmov_relocs=no
2390 rm -f conftest.s conftest.o
2393 if test "x$gcc_cv_as_ltoffx_ldxmov_relocs" = xyes; then
2394 AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2395 [Define if your assembler supports ltoffx and ldxmov relocations.])
2400 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2401 gcc_cv_as_dwarf2_debug_line=no
2402 # ??? Not all targets support dwarf2 debug_line, even within a version
2403 # of gas. Moreover, we need to emit a valid instruction to trigger any
2404 # info to the output file. So, as supported targets are added to gas 2.11,
2405 # add some instruction here to (also) show we expect this might work.
2406 # ??? Once 2.11 is released, probably need to add first known working
2407 # version to the per-target configury.
2409 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2410 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-*)
2417 if test $in_tree_gas = yes ; then
2418 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2419 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2420 && test x"$insn" != x ; then
2421 gcc_cv_as_dwarf2_debug_line="yes"
2424 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2425 echo ' .file 1 "conftest.s"' > conftest.s
2426 echo ' .loc 1 3 0' >> conftest.s
2427 echo " $insn" >> conftest.s
2428 # ??? This fails with non-gnu grep.
2429 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2430 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2431 # The .debug_line file table must be in the exact order that
2432 # we specified the files, since these indices are also used
2433 # by DW_AT_decl_file. Approximate this test by testing if
2434 # the assembler bitches if the same index is assigned twice.
2435 echo ' .file 1 "foo.s"' > conftest.s
2436 echo ' .file 1 "bar.s"' >> conftest.s
2437 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2439 gcc_cv_as_dwarf2_debug_line="no"
2441 gcc_cv_as_dwarf2_debug_line="yes"
2444 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2446 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2447 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2448 [Define if your assembler supports dwarf2 .file/.loc directives,
2449 and preserves file table indices exactly as given.])
2451 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2453 AC_MSG_CHECKING(assembler --gdwarf2 support)
2454 gcc_cv_as_gdwarf2_flag=no
2455 if test $in_tree_gas = yes ; then
2456 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2457 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2458 && test x"$insn" != x ; then
2459 gcc_cv_as_gdwarf2_flag="yes"
2462 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2463 echo '' > conftest.s
2464 # ??? This fails with non-gnu grep.
2465 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2467 gcc_cv_as_gdwarf2_flag="yes"
2469 rm -f conftest.s conftest.o
2471 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2472 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2473 [Define if your assembler supports the --gdwarf2 option.])
2475 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2477 AC_MSG_CHECKING(assembler --gstabs support)
2478 gcc_cv_as_gstabs_flag=no
2479 if test $in_tree_gas = yes ; then
2480 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2481 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2482 && test x"$insn" != x ; then
2483 gcc_cv_as_gstabs_flag="yes"
2486 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2487 echo '' > conftest.s
2488 # ??? This fails with non-gnu grep.
2489 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2490 gcc_cv_as_gstabs_flag="yes"
2492 rm -f conftest.s conftest.o
2494 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2495 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2496 [Define if your assembler supports the --gstabs option.])
2498 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2500 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2501 gcc_cv_ld_ro_rw_mix=unknown
2502 if test $in_tree_ld = yes ; then
2503 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2504 gcc_cv_ld_ro_rw_mix=read-write
2506 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2507 echo '.section "myfoosect", "a"' > conftest1.s
2508 echo '.section "myfoosect", "aw"' > conftest2.s
2509 echo '.byte 1' >> conftest2.s
2510 echo '.section "myfoosect", "a"' > conftest3.s
2511 echo '.byte 0' >> conftest3.s
2512 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2513 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2514 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2515 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2516 conftest2.o conftest3.o; then
2517 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2518 | grep -A1 myfoosect`
2519 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2520 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2521 gcc_cv_ld_ro_rw_mix=read-only
2523 gcc_cv_ld_ro_rw_mix=read-write
2528 rm -f conftest.* conftest[123].*
2531 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2532 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2533 [Define if your linker links a mix of read-only
2534 and read-write sections into a read-write section.])
2536 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2538 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2539 gcc_cv_ld_eh_frame_hdr=no
2540 if test $in_tree_ld = yes ; then
2541 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
2542 gcc_cv_ld_eh_frame_hdr=yes
2544 elif test x$gcc_cv_ld != x; then
2545 # Check if linker supports --eh-frame-hdr option
2546 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2547 gcc_cv_ld_eh_frame_hdr=yes
2550 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2551 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2552 [Define if your linker supports --eh-frame-hdr option.])
2554 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2556 # Miscellaneous target-specific checks.
2559 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2560 gcc_cv_mips_libgloss_startup=no
2561 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2562 if test "x$exec_prefix" = xNONE; then
2563 if test "x$prefix" = xNONE; then
2564 test_prefix=/usr/local
2569 test_prefix=$exec_prefix
2571 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2573 if grep '^STARTUP' $f > /dev/null 2>&1; then
2574 gcc_cv_mips_libgloss_startup=yes
2578 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2579 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2580 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2582 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2586 if test x$with_sysroot = x && test x$host = x$target \
2587 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2588 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2591 # Figure out what language subdirectories are present.
2592 # Look if the user specified --enable-languages="..."; if not, use
2593 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2595 # NB: embedded tabs in this IF block -- do not untabify
2596 if test x"${enable_languages+set}" != xset; then
2597 if test x"${LANGUAGES+set}" = xset; then
2598 enable_languages="${LANGUAGES}"
2599 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2602 enable_languages=all
2605 if test x"${enable_languages}" = x \
2606 || test x"${enable_languages}" = xyes;
2608 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2611 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2613 # First scan to see if an enabled language requires some other language.
2614 # We assume that a given config-lang.in will list all the language
2615 # front ends it requires, even if some are required indirectly.
2616 for lang in ${srcdir}/*/config-lang.in ..
2621 # The odd quoting in the next line works around
2622 # an apparent bug in bash 1.12 on linux.
2624 ${srcdir}/[*]/config-lang.in)
2627 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2628 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2629 for other in $this_lang_requires
2631 case ,${enable_languages}, in
2637 enable_languages="$enable_languages,$other"
2646 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2649 for lang in ${srcdir}/*/config-lang.in ..
2653 # The odd quoting in the next line works around
2654 # an apparent bug in bash 1.12 on linux.
2656 ${srcdir}/[*]/config-lang.in) ;;
2658 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2659 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2660 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2661 if test "x$lang_alias" = x
2663 echo "$lang doesn't set \$language." 1>&2
2666 case ${build_by_default},${enable_languages}, in
2667 *,$lang_alias,*) add_this_lang=yes ;;
2668 no,*) add_this_lang=no ;;
2669 *,all,*) add_this_lang=yes ;;
2670 *) add_this_lang=no ;;
2672 found_languages="${found_languages} ${lang_alias}"
2673 if test x"${add_this_lang}" = xyes; then
2675 ${srcdir}/ada/config-lang.in)
2676 if test x$have_gnat = xyes ; then
2677 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2681 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2691 for expected_language in ${expected_languages} ..
2693 if test "${expected_language}" != ..; then
2694 missing_language="${expected_language}"
2695 if test "${expected_language}" = "c" \
2696 || test "${expected_language}" = "all"; then
2699 for found_language in ${found_languages} ..
2701 if test "${found_language}" != ..; then
2702 if test "${expected_language}" = "${found_language}"; then
2707 if test "x${missing_language}" != x; then
2708 missing_languages="${missing_languages} ${missing_language}"
2713 if test "x$missing_languages" != x; then
2715 The following requested languages were not found:${missing_languages}
2716 The following languages were available: c${found_languages}])
2719 # Make gthr-default.h if we have a thread file.
2721 if test $thread_file != single; then
2722 rm -f gthr-default.h
2723 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2724 gthread_flags=-DHAVE_GTHR_DEFAULT
2726 AC_SUBST(gthread_flags)
2728 # Find out what GC implementation we want, or may, use.
2730 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2737 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2742 echo "Using $GGC for garbage collection."
2744 # Use the system's zlib library.
2746 zlibinc="-I\$(srcdir)/../zlib"
2747 AC_ARG_WITH(system-zlib,
2748 [ --with-system-zlib use installed libz],
2755 dnl Very limited version of automake's enable-maintainer-mode
2757 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2758 dnl maintainer-mode is disabled by default
2759 AC_ARG_ENABLE(maintainer-mode,
2760 [ --enable-maintainer-mode
2761 enable make rules and dependencies not useful
2762 (and sometimes confusing) to the casual installer],
2763 maintainer_mode=$enableval,
2766 AC_MSG_RESULT($maintainer_mode)
2768 if test "$maintainer_mode" = "yes"; then
2775 # Make empty files to contain the specs and options for each language.
2776 # Then add #include lines to for a compiler that has specs and/or options.
2781 for subdir in . $subdirs
2783 if test -f $srcdir/$subdir/lang-specs.h; then
2784 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2786 if test -f $srcdir/$subdir/lang-options.h; then
2787 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2789 if test -f $srcdir/$subdir/$subdir-tree.def; then
2790 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2794 # These (without "all_") are set in each config-lang.in.
2795 # `language' must be a single word so is spelled singularly.
2800 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2801 # List of language makefile fragments.
2803 # Files for gengtype
2804 all_gtfiles="$target_gtfiles"
2805 # Files for gengtype with language
2806 all_gtfiles_files_langs=
2807 all_gtfiles_files_files=
2809 # Add the language fragments.
2810 # Languages are added via two mechanisms. Some information must be
2811 # recorded in makefile variables, these are defined in config-lang.in.
2812 # We accumulate them and plug them into the main Makefile.
2813 # The other mechanism is a set of hooks for each of the main targets
2814 # like `clean', `install', etc.
2816 language_fragments="Make-lang"
2817 language_hooks="Make-hooks"
2819 for s in .. $subdirs
2829 . ${srcdir}/$s/config-lang.in
2830 if test "x$language" = x
2832 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2835 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2836 if test -f ${srcdir}/$s/Makefile.in
2837 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2839 all_languages="$all_languages $language"
2840 if test "x$boot_language" = xyes
2842 all_boot_languages="$all_boot_languages $language"
2844 all_compilers="$all_compilers $compilers"
2845 all_stagestuff="$all_stagestuff $stagestuff"
2846 all_outputs="$all_outputs $outputs"
2847 all_gtfiles="$all_gtfiles $gtfiles"
2848 for f in .. $gtfiles
2852 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2853 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2859 # Pick up gtfiles for c
2862 . ${srcdir}/c-config-lang.in
2863 all_gtfiles="$all_gtfiles $gtfiles"
2864 for f in .. $gtfiles
2868 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2869 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2874 for language in .. $all_languages
2876 if test $language != ".."
2878 check_languages="$check_languages check-$language"
2882 # Since we can't use `::' targets, we link each language in
2883 # with a set of hooks, reached indirectly via lang.${target}.
2887 target_list="all.build all.cross start.encap rest.encap tags \
2888 info dvi generated-manpages \
2889 install-normal install-common install-info install-man \
2891 mostlyclean clean distclean extraclean maintainer-clean \
2892 stage1 stage2 stage3 stage4"
2893 for t in $target_list
2896 for lang in .. $all_languages
2898 if test $lang != ".."; then
2902 echo "lang.$t: $x" >> Make-hooks
2907 echo "dir ." > .gdbinit
2908 echo "dir ${srcdir}" >> .gdbinit
2909 if test x$gdb_needs_out_file_path = xyes
2911 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2913 if test "x$subdirs" != x; then
2916 echo "dir ${srcdir}/$s" >> .gdbinit
2919 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2921 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2922 # absolute path for gcc_tooldir based on inserting the number of up-directory
2923 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2924 # $(libsubdir)/@(unlibsubdir) based path.
2925 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2926 # make and thus we'd get different behavior depending on where we built the
2928 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2929 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2931 changequote(<<, >>)dnl
2932 # An explanation of the sed strings:
2933 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2934 # -e 's|/$||' match a trailing forward slash and eliminates it
2935 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2936 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2938 # (*) Note this pattern overwrites the first character of the string
2939 # with a forward slash if one is not already present. This is not a
2940 # problem because the exact names of the sub-directories concerned is
2941 # unimportant, just the number of them matters.
2943 # The practical upshot of these patterns is like this:
2945 # prefix exec_prefix result
2946 # ------ ----------- ------
2948 # /foo/ /foo/bar ../
2949 # /foo /foo/bar/ ../
2950 # /foo/ /foo/bar/ ../
2951 # /foo /foo/bar/ugg ../../
2954 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2955 changequote([, ])dnl
2957 AC_SUBST(gcc_tooldir)
2960 # Find a directory in which to install a shared libgcc.
2962 AC_ARG_ENABLE(version-specific-runtime-libs,
2963 [ --enable-version-specific-runtime-libs
2964 specify that runtime libraries should be
2965 installed in a compiler-specific directory])
2967 AC_ARG_WITH(slibdir,
2968 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2969 slibdir="$with_slibdir",
2970 if test "${enable_version_specific_runtime_libs+set}" = set; then
2971 slibdir='$(libsubdir)'
2972 elif test "$host" != "$target"; then
2973 slibdir='$(build_tooldir)/lib'
2979 objdir=`${PWDCMD-pwd}`
2982 # Process the language and host/target makefile fragments.
2983 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2985 # Substitute configuration variables
2988 AC_SUBST(all_boot_languages)
2989 AC_SUBST(all_compilers)
2990 AC_SUBST(all_gtfiles)
2991 AC_SUBST(all_gtfiles_files_langs)
2992 AC_SUBST(all_gtfiles_files_files)
2993 AC_SUBST(all_lang_makefiles)
2994 AC_SUBST(all_languages)
2995 AC_SUBST(all_stagestuff)
2996 AC_SUBST(build_exeext)
2997 AC_SUBST(build_install_headers_dir)
2998 AC_SUBST(build_xm_file_list)
2999 AC_SUBST(build_xm_file)
3000 AC_SUBST(build_xm_defines)
3001 AC_SUBST(check_languages)
3002 AC_SUBST(cc_set_by_configure)
3003 AC_SUBST(quoted_cc_set_by_configure)
3004 AC_SUBST(cpp_install_dir)
3005 AC_SUBST(dep_host_xmake_file)
3006 AC_SUBST(dep_tmake_file)
3007 AC_SUBST(extra_headers_list)
3008 AC_SUBST(extra_objs)
3009 AC_SUBST(extra_parts)
3010 AC_SUBST(extra_passes)
3011 AC_SUBST(extra_programs)
3012 AC_SUBST(float_h_file)
3013 AC_SUBST(gcc_config_arguments)
3014 AC_SUBST(gcc_gxx_include_dir)
3015 AC_SUBST(libstdcxx_incdir)
3016 AC_SUBST(gcc_version)
3017 AC_SUBST(gcc_version_full)
3018 AC_SUBST(gcc_version_trigger)
3019 AC_SUBST(host_exeext)
3020 AC_SUBST(host_extra_gcc_objs)
3021 AC_SUBST(host_xm_file_list)
3022 AC_SUBST(host_xm_file)
3023 AC_SUBST(host_xm_defines)
3024 AC_SUBST(out_host_hook_obj)
3026 AC_SUBST(lang_options_files)
3027 AC_SUBST(lang_specs_files)
3028 AC_SUBST(lang_tree_files)
3029 AC_SUBST(local_prefix)
3031 AC_SUBST(objc_boehm_gc)
3033 AC_SUBST(out_object_file)
3034 AC_SUBST(stage_prefix_set_by_configure)
3035 AC_SUBST(quoted_stage_prefix_set_by_configure)
3036 AC_SUBST(symbolic_link)
3037 AC_SUBST(thread_file)
3038 AC_SUBST(tm_file_list)
3040 AC_SUBST(tm_defines)
3041 AC_SUBST(tm_p_file_list)
3044 AC_SUBST(xm_defines)
3045 AC_SUBST(target_alias)
3046 AC_SUBST(c_target_objs)
3047 AC_SUBST(cxx_target_objs)
3048 AC_SUBST(target_cpu_default)
3050 AC_SUBST_FILE(target_overrides)
3051 AC_SUBST_FILE(host_overrides)
3052 AC_SUBST_FILE(language_fragments)
3053 AC_SUBST_FILE(language_hooks)
3055 # Echo that links are built
3056 if test x$host = x$target
3064 if test x$host != x$build
3066 str3=" on a $build system"
3069 if test "x$str2" != x || test "x$str3" != x
3074 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3076 if test "x$str2" != x || test "x$str3" != x
3078 echo " ${str2}${str3}." 1>&2
3081 # Truncate the target if necessary
3082 if test x$host_truncate_target != x; then
3083 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
3086 # Configure the subdirectories
3087 # AC_CONFIG_SUBDIRS($subdirs)
3089 # Create the Makefile
3090 # and configure language subdirectories
3091 AC_OUTPUT($all_outputs,
3093 case x$CONFIG_HEADERS in
3094 xauto-host.h:config.in)
3097 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3098 # bootstrapping and the installation procedure can still use
3099 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3100 # FLAGS_TO_PASS has been modified to solve the problem there.
3101 # This is virtually a duplicate of what happens in configure.lang; we do
3102 # an extra check to make sure this only happens if ln -s can be used.
3103 if test "$symbolic_link" = "ln -s"; then
3104 for d in .. ${subdirs} fixinc ; do
3105 if test $d != ..; then
3106 STARTDIR=`${PWDCMD-pwd}`
3108 for t in stage1 stage2 stage3 stage4 include
3111 $symbolic_link ../$t $t 2>/dev/null
3117 # Avoid having to add intl to our include paths.
3118 if test -f intl/libintl.h; then
3119 echo creating libintl.h
3120 echo '#include "intl/libintl.h"' >libintl.h
3124 symbolic_link='$symbolic_link'