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${enable_threads_flag} in
514 target_thread_file='single'
518 target_thread_file=''
520 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
521 xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
522 target_thread_file=$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 $gcc_cv_header_inttypes_h = yes; then
780 AC_DEFINE(HAVE_INTTYPES_H, 1,
781 [Define if you have a working <inttypes.h> header file.])
784 dnl Disabled until we have a complete test for buggy enum bitfields.
785 dnl gcc_AC_C_ENUM_BF_UNSIGNED
787 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
788 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
789 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
790 scandir alphasort gettimeofday mbstowcs wcswidth)
792 AC_CHECK_TYPE(ssize_t, int)
794 # Try to determine the array type of the second argument of getgroups
795 # for the target system (int or gid_t).
797 if test "${target}" = "${build}"; then
798 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
801 # This condition may need some tweaking. It should include all
802 # targets where the array type of the second argument of getgroups
803 # is int and the type of gid_t is not equivalent to int.
804 *-*-sunos* | *-*-ultrix*)
805 TARGET_GETGROUPS_T=int
808 TARGET_GETGROUPS_T=gid_t
812 AC_SUBST(TARGET_GETGROUPS_T)
814 gcc_AC_FUNC_PRINTF_PTR
819 *** UWIN may not be used as a host platform because
820 *** linking with posix.dll is not allowed by the GNU GPL])
823 # Under VMS, vfork works very different than on Unix. The standard test
824 # won't work, and it isn't easily adaptable. It makes more sense to
826 ac_cv_func_vfork_works=yes
830 AC_FUNC_MMAP_ANYWHERE
835 # We will need to find libiberty.h and ansidecl.h
836 saved_CFLAGS="$CFLAGS"
837 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
838 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
839 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
840 fprintf_unlocked strstr errno vasprintf \
841 malloc realloc calloc free basename getopt clock, , ,[
842 #include "ansidecl.h"
843 #include "system.h"])
845 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
846 #include "ansidecl.h"
848 #ifdef HAVE_SYS_RESOURCE_H
849 #include <sys/resource.h>
854 #include "ansidecl.h"
856 #ifdef HAVE_SYS_RESOURCE_H
857 #include <sys/resource.h>
859 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
860 [Define to \`long' if <sys/resource.h> doesn't define.])])
862 gcc_AC_CHECK_DECLS(ldgetname, , ,[
863 #include "ansidecl.h"
870 gcc_AC_CHECK_DECLS(times, , ,[
871 #include "ansidecl.h"
873 #ifdef HAVE_SYS_TIMES_H
874 #include <sys/times.h>
878 # More time-related stuff.
879 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
881 #include "ansidecl.h"
883 #ifdef HAVE_SYS_TIMES_H
884 #include <sys/times.h>
886 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
887 if test $ac_cv_struct_tms = yes; then
888 AC_DEFINE(HAVE_STRUCT_TMS, 1,
889 [Define if <sys/times.h> defines struct tms.])
892 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
893 # revisit after autoconf 2.50.
894 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
896 #include "ansidecl.h"
898 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
899 if test $gcc_cv_type_clock_t = yes; then
900 AC_DEFINE(HAVE_CLOCK_T, 1,
901 [Define if <time.h> defines clock_t.])
904 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
906 #include "ansidecl.h"
909 [if ((uchar *)0) return 0;
910 if (sizeof(uchar)) return 0;],
911 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
912 if test $ac_cv_type_uchar = yes; then
913 AC_DEFINE(HAVE_UCHAR, 1,
914 [Define if <sys/types.h> defines \`uchar'.])
917 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
918 CFLAGS="$saved_CFLAGS"
920 gcc_AC_INITFINI_ARRAY
922 # mkdir takes a single argument on some systems.
923 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
931 # With Setjmp/Longjmp based exception handling.
932 AC_ARG_ENABLE(sjlj-exceptions,
933 [ --enable-sjlj-exceptions
934 arrange to use setjmp/longjmp exception handling],
935 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
936 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
937 [Define 0/1 to force the choice for exception handling model.])])
939 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
940 # Use libunwind based exception handling.
941 AC_ARG_ENABLE(libunwind-exceptions,
942 [ --enable-libunwind-exceptions force use libunwind for exceptions],
943 use_libunwind_exceptions=$enableval,
944 use_libunwind_exceptions=$use_libunwind_default)
945 if test x"$use_libunwind_exceptions" = xyes; then
946 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
947 [Define if gcc should use -lunwind.])
950 # --------------------------------------------------------
951 # Build, host, and target specific configuration fragments
952 # --------------------------------------------------------
957 build_install_headers_dir=install-headers-tar
962 host_truncate_target=
965 # Decode the host machine, then the target machine.
966 # For the host machine, we save the xm_file variable as host_xm_file;
967 # then we decode the target machine and forget everything else
968 # that came from the host machine.
969 for machine in $build $host $target; do
970 . ${srcdir}/config.gcc
973 extra_objs="${host_extra_objs} ${extra_objs}"
975 # Default the target-machine variables that were not explicitly set.
976 if test x"$tm_file" = x
977 then tm_file=$cpu_type/$cpu_type.h; fi
979 if test x"$extra_headers" = x
980 then extra_headers=; fi
982 if test x$md_file = x
983 then md_file=$cpu_type/$cpu_type.md; fi
985 if test x$out_file = x
986 then out_file=$cpu_type/$cpu_type.c; fi
988 if test x"$tmake_file" = x
989 then tmake_file=$cpu_type/t-$cpu_type
992 if test x"$dwarf2" = xyes
993 then tm_file="$tm_file tm-dwarf2.h"
996 # Say what files are being used for the output code and MD file.
997 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
998 echo "Using \`$srcdir/config/$md_file' as machine description file."
1000 # If any of the xm_file variables contain nonexistent files, warn
1001 # about them and drop them.
1004 for x in $build_xm_file; do
1005 if test -f $srcdir/config/$x
1007 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1013 for x in $host_xm_file; do
1014 if test -f $srcdir/config/$x
1016 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1022 for x in $xm_file; do
1023 if test -f $srcdir/config/$x
1025 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1031 for f in $tm_file; do
1034 if test $count = ax; then
1035 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1037 echo "Using the following target machine macro files:"
1038 for f in $tm_file; do
1039 echo " $srcdir/config/$f"
1043 if test x$need_64bit_hwint = xyes; then
1044 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1045 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1049 for f in $host_xm_file; do
1052 if test $count = a; then
1054 elif test $count = ax; then
1055 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1057 echo "Using the following host machine macro files:"
1058 for f in $host_xm_file; do
1059 echo " $srcdir/config/$f"
1062 echo "Using ${out_host_hook_obj} for host machine hooks."
1064 if test "$host_xm_file" != "$build_xm_file"; then
1066 for f in $build_xm_file; do
1069 if test $count = a; then
1071 elif test $count = ax; then
1072 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1074 echo "Using the following build machine macro files:"
1075 for f in $build_xm_file; do
1076 echo " $srcdir/config/$f"
1081 if test x$thread_file = x; then
1082 if test x$target_thread_file != x; then
1083 thread_file=$target_thread_file
1085 thread_file='single'
1089 # Look for a file containing extra machine modes.
1090 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1091 extra_modes_file='$(srcdir)'/config/${extra_modes}
1092 AC_SUBST(extra_modes_file)
1093 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1094 [Define to the name of a file containing a list of extra machine modes
1095 for this architecture.])
1096 AC_DEFINE(EXTRA_CC_MODES, 1,
1097 [Define if the target architecture needs extra machine modes to represent
1098 the results of comparisons.])
1101 # auto-host.h is the file containing items generated by autoconf and is
1102 # the first file included by config.h.
1103 # If host=build, it is correct to have bconfig include auto-host.h
1104 # as well. If host!=build, we are in error and need to do more
1105 # work to find out the build config parameters.
1106 if test x$host = x$build
1108 build_auto=auto-host.h
1111 # We create a subdir, then run autoconf in the subdir.
1112 # To prevent recursion we set host and build for the new
1113 # invocation of configure to the build for this invocation
1120 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1121 *) realsrcdir=../${srcdir};;
1123 saved_CFLAGS="${CFLAGS}"
1124 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1125 ${realsrcdir}/configure \
1126 --target=$target_alias --host=$build_alias --build=$build_alias
1127 CFLAGS="${saved_CFLAGS}"
1129 # We just finished tests for the build machine, so rename
1130 # the file auto-build.h in the gcc directory.
1131 mv auto-host.h ../auto-build.h
1134 build_auto=auto-build.h
1135 FORBUILD=../build-$build_alias
1139 tm_file="${tm_file} defaults.h"
1140 tm_p_file="${tm_p_file} tm-preds.h"
1141 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1142 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1143 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1144 # put this back in temporarily.
1145 xm_file="ansidecl.h ${xm_file}"
1151 # Truncate the target if necessary
1152 if test x$host_truncate_target != x; then
1153 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1156 # Get the version trigger filename from the toplevel
1157 if test "${with_gcc_version_trigger+set}" = set; then
1158 gcc_version_trigger=$with_gcc_version_trigger
1160 gcc_version_trigger=${srcdir}/version.c
1163 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1164 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1166 # Compile in configure arguments.
1167 if test -f configargs.h ; then
1168 # Being re-configured.
1169 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1170 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1172 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1174 cat > configargs.h <<EOF
1175 /* Generated automatically. */
1176 static const char configuration_arguments[] = "$gcc_config_arguments";
1177 static const char thread_model[] = "$thread_file";
1181 # Internationalization
1183 VERSION="$gcc_version"
1187 # Enable NLS support by default
1189 [ --enable-nls use Native Language Support (default)],
1192 # if cross compiling, disable NLS support.
1193 # It's not worth the trouble, at least for now.
1195 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
1196 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
1202 # Windows32 Registry support for specifying GCC installation paths.
1203 AC_ARG_ENABLE(win32-registry,
1204 [ --disable-win32-registry
1205 disable lookup of installation paths in the
1206 Registry on Windows hosts
1207 --enable-win32-registry enable registry lookup (default)
1208 --enable-win32-registry=KEY
1209 use KEY instead of GCC version as the last portion
1210 of the registry key],,)
1212 win32 | pe | cygwin* | mingw32* | uwin*)
1213 AC_MSG_CHECKING(whether windows registry support is requested)
1214 if test "x$enable_win32_registry" != xno; then
1215 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1216 [Define to 1 if installation paths should be looked up in Windows32
1217 Registry. Ignored on non windows32 hosts.])
1219 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1224 # Check if user specified a different registry key.
1225 case "x${enable_win32_registry}" in
1228 gcc_cv_win32_registry_key="$VERSION"
1231 # no registry lookup.
1232 gcc_cv_win32_registry_key=''
1235 # user-specified key.
1236 gcc_cv_win32_registry_key="$enable_win32_registry"
1240 if test "x$enable_win32_registry" != xno; then
1241 AC_MSG_CHECKING(registry key on windows hosts)
1242 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1243 [Define to be the last portion of registry key on windows hosts.])
1244 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1249 # Get an absolute path to the GCC top-level source directory
1250 holddir=`${PWDCMD-pwd}`
1252 topdir=`${PWDCMD-pwd}`
1255 # Conditionalize the makefile for this host machine.
1256 # Make-host contains the concatenation of all host makefile fragments
1257 # [there can be more than one]. This file is built by configure.frag.
1258 host_overrides=Make-host
1259 dep_host_xmake_file=
1260 for f in .. ${host_xmake_file}
1262 if test -f ${srcdir}/config/$f
1264 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1268 # Conditionalize the makefile for this target machine.
1269 # Make-target contains the concatenation of all host makefile fragments
1270 # [there can be more than one]. This file is built by configure.frag.
1271 target_overrides=Make-target
1273 for f in .. ${tmake_file}
1275 if test -f ${srcdir}/config/$f
1277 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1281 symbolic_link='ln -s'
1283 # If the host doesn't support symlinks, modify CC in
1284 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1285 # Otherwise, we can use "CC=$(CC)".
1287 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1289 cc_set_by_configure="\$(CC)"
1290 quoted_cc_set_by_configure="\$(CC)"
1291 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1292 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1295 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1297 symbolic_link="cp -p"
1301 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1302 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1303 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1304 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1308 out_object_file=`basename $out_file .c`.o
1311 for f in $tm_file; do
1314 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1316 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1317 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1322 for f in $tm_p_file; do
1325 tm_p_file_list="${tm_p_file_list} $f" ;;
1326 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1331 for f in $host_xm_file; do
1334 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1336 host_xm_file_list="${host_xm_file_list} $f" ;;
1338 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1339 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1344 for f in $build_xm_file; do
1347 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1348 auto-build.h | auto-host.h )
1349 build_xm_file_list="${build_xm_file_list} $f" ;;
1351 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1352 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1356 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1357 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1358 CROSS= AC_SUBST(CROSS)
1359 ALL=all.internal AC_SUBST(ALL)
1360 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1361 if test x$host != x$target
1363 CROSS="-DCROSS_COMPILE"
1365 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1366 case "$host","$target" in
1367 i?86-*-*,x86_64-*-* \
1368 | powerpc*-*-*,powerpc64*-*-*)
1369 CROSS="$CROSS -DNATIVE_CROSS" ;;
1371 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1372 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1373 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1376 # If this is a cross-compiler that does not
1377 # have its own set of headers then define
1380 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1381 # This prevents libgcc2 from containing any code which requires libc
1384 if { test x$host != x$target && test "x$with_headers" = x &&
1385 test "x$with_sysroot" = x ; } || test x$with_newlib = xyes ; then
1386 inhibit_libc=-Dinhibit_libc
1388 AC_SUBST(inhibit_libc)
1390 # When building gcc with a cross-compiler, we need to adjust things so
1391 # that the generator programs are still built with the native compiler.
1392 # Also, we cannot run fixincludes or fix-header.
1394 # These are the normal (build=host) settings:
1395 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1396 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1397 BUILD_CC='$(CC)' AC_SUBST(BUILD_CC)
1398 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1400 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1401 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1403 # And these apply if build != host.
1404 if test x$build != x$host
1407 BUILD_PREFIX_1=build-
1408 BUILD_CC='$(CC_FOR_BUILD)'
1409 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1411 if test "x$TARGET_SYSTEM_ROOT" = x; then
1417 # Expand extra_headers to include complete path.
1418 # This substitutes for lots of t-* files.
1420 if test "x$extra_headers" = x
1423 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1424 for file in $extra_headers;
1426 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1430 # Add a definition of USE_COLLECT2 if system wants one.
1431 case $use_collect2 in
1432 no) use_collect2= ;;
1435 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1436 xm_defines="${xm_defines} USE_COLLECT2"
1440 # If we have gas in the build tree, make a link to it.
1441 if test -f ../gas/Makefile; then
1442 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1445 # If we have nm and objdump in the build tree, make a link to them.
1446 if test -f ../binutils/Makefile; then
1447 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1448 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1451 # If we have ld in the build tree, make a link to it.
1452 if test -f ../ld/Makefile; then
1453 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1456 # Identify the assembler which will work hand-in-glove with the newly
1457 # built GCC, so that we can examine its features. This is the assembler
1458 # which will be driven by the driver program.
1460 # If build != host, and we aren't building gas in-tree, we identify a
1461 # build->target assembler and hope that it will have the same features
1462 # as the host->target assembler we'll be using.
1463 AC_MSG_CHECKING(what assembler to use)
1466 gcc_cv_gas_major_version=
1467 gcc_cv_gas_minor_version=
1468 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1469 if test -x "$DEFAULT_ASSEMBLER"; then
1470 gcc_cv_as="$DEFAULT_ASSEMBLER"
1471 elif test -x "$AS"; then
1473 elif test -x as$host_exeext; then
1474 # Build using assembler in the current directory.
1475 gcc_cv_as=./as$host_exeext
1476 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1477 && test -f ../gas/Makefile; then
1478 # Single tree build which includes gas.
1480 _gcc_COMPUTE_GAS_VERSION
1483 if test "x$gcc_cv_as" = x; then
1484 # Search the same directories that the installed compiler will
1485 # search. Else we may find the wrong assembler and lose. If we
1486 # do not find a suitable assembler binary, then try the user's
1489 # Also note we have to check MD_EXEC_PREFIX before checking the
1490 # user's path. Unfortunately, there is no good way to get at the
1491 # value of MD_EXEC_PREFIX here. So we do a brute force search
1492 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1493 # to be fixed as part of the make/configure rewrite too.
1495 if test "x$exec_prefix" = xNONE; then
1496 if test "x$prefix" = xNONE; then
1497 test_prefix=/usr/local
1502 test_prefix=$exec_prefix
1505 # If the loop below does not find an assembler, then use whatever
1506 # one we can find in the users's path.
1508 if test "x$program_prefix" != xNONE; then
1509 gcc_cv_as=${program_prefix}as$host_exeext
1511 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1514 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1515 $test_prefix/lib/gcc-lib/$target_alias \
1516 /usr/lib/gcc/$target_alias/$gcc_version \
1517 /usr/lib/gcc/$target_alias \
1518 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1519 $test_prefix/$target_alias/bin"
1521 if test x$host = x$target; then
1522 test_dirs="$test_dirs \
1527 /bsd43/usr/lib/cmplrs/cc \
1528 /usr/cross64/usr/bin \
1529 /usr/lib/cmplrs/cc \
1530 /sysv/usr/lib/cmplrs/cc \
1531 /svr4/usr/lib/cmplrs/cc \
1535 for dir in $test_dirs; do
1536 if test -x $dir/as$host_exeext; then
1537 gcc_cv_as=$dir/as$host_exeext
1542 case $in_tree_gas in
1544 AC_MSG_RESULT("newly built gas")
1547 AC_MSG_RESULT($gcc_cv_as)
1551 # Identify the linker which will work hand-in-glove with the newly
1552 # built GCC, so that we can examine its features. This is the linker
1553 # which will be driven by the driver program.
1555 # If build != host, and we aren't building gas in-tree, we identify a
1556 # build->target linker and hope that it will have the same features
1557 # as the host->target linker we'll be using.
1558 AC_MSG_CHECKING(what linker to use)
1561 gcc_cv_gld_major_version=
1562 gcc_cv_gld_minor_version=
1563 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1564 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1565 if test -x "$DEFAULT_LINKER"; then
1566 gcc_cv_ld="$DEFAULT_LINKER"
1567 elif test -x "$LD"; then
1569 elif test -x ld$host_exeext; then
1570 # Build using linker in the current directory.
1571 gcc_cv_ld=./ld$host_exeext
1572 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1573 && test -f ../ld/Makefile; then
1574 # Single tree build which includes ld.
1576 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
1579 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1581 if test x$gcc_cv_gld_version != x; then
1586 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1587 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1591 if test "x$gcc_cv_ld" = x; then
1592 # Search the same directories that the installed compiler will
1593 # search. Else we may find the wrong linker and lose. If we
1594 # do not find a suitable linker binary, then try the user's
1597 # Also note we have to check MD_EXEC_PREFIX before checking the
1598 # user's path. Unfortunately, there is no good way to get at the
1599 # value of MD_EXEC_PREFIX here. So we do a brute force search
1600 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1601 # to be fixed as part of the make/configure rewrite too.
1603 if test "x$exec_prefix" = xNONE; then
1604 if test "x$prefix" = xNONE; then
1605 test_prefix=/usr/local
1610 test_prefix=$exec_prefix
1613 # If the loop below does not find an linker, then use whatever
1614 # one we can find in the users's path.
1616 if test "x$program_prefix" != xNONE; then
1617 gcc_cv_ld=${program_prefix}ld$host_exeext
1619 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1622 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1623 $test_prefix/lib/gcc-lib/$target_alias \
1624 /usr/lib/gcc/$target_alias/$gcc_version \
1625 /usr/lib/gcc/$target_alias \
1626 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1627 $test_prefix/$target_alias/bin"
1629 if test x$host = x$target; then
1630 test_dirs="$test_dirs \
1635 /bsd43/usr/lib/cmplrs/cc \
1636 /usr/cross64/usr/bin \
1637 /usr/lib/cmplrs/cc \
1638 /sysv/usr/lib/cmplrs/cc \
1639 /svr4/usr/lib/cmplrs/cc \
1643 for dir in $test_dirs; do
1644 if test -x $dir/ld$host_exeext; then
1645 gcc_cv_ld=$dir/ld$host_exeext
1652 AC_MSG_RESULT("newly built ld")
1655 AC_MSG_RESULT($gcc_cv_ld)
1659 # Figure out what nm we will be using.
1660 AC_MSG_CHECKING(what nm to use)
1661 if test -x nm$host_exeext; then
1662 gcc_cv_nm=./nm$host_exeext
1663 elif test "x$program_prefix" != xNONE; then
1664 gcc_cv_nm=${program_prefix}nm$host_exeext
1666 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1668 AC_MSG_RESULT($gcc_cv_nm)
1670 # Figure out what objdump we will be using.
1671 AC_MSG_CHECKING(what objdump to use)
1672 if test -x objdump$host_exeext; then
1673 gcc_cv_objdump=./objdump$host_exeext
1674 elif test "x$program_prefix" != xNONE; then
1675 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1677 gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
1679 AC_MSG_RESULT($gcc_cv_objdump)
1681 # Figure out what assembler alignment features are present.
1682 AC_MSG_CHECKING(assembler alignment features)
1683 gcc_cv_as_alignment_features=none
1684 if test $in_tree_gas = yes; then
1685 # Gas version 2.6 and later support for .balign and .p2align.
1686 gcc_GAS_VERSION_GTE_IFELSE(2,6,0,[
1687 gcc_cv_as_alignment_features=".balign and .p2align"
1688 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1690 # Gas version 2.8 and later support specifying the maximum
1691 # bytes to skip when using .p2align.
1692 gcc_GAS_VERSION_GTE_IFELSE(2,8,0,[
1693 gcc_cv_as_alignment_features=".p2align including maximum skip"
1694 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1696 elif test x$gcc_cv_as != x; then
1697 # Check if we have .balign and .p2align
1698 echo ".balign 4" > conftest.s
1699 echo ".p2align 2" >> conftest.s
1700 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1701 gcc_cv_as_alignment_features=".balign and .p2align"
1702 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1704 rm -f conftest.s conftest.o
1705 # Check if specifying the maximum bytes to skip when
1706 # using .p2align is supported.
1707 echo ".p2align 4,,7" > conftest.s
1708 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1709 gcc_cv_as_alignment_features=".p2align including maximum skip"
1710 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1712 rm -f conftest.s conftest.o
1714 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1716 AC_MSG_CHECKING(assembler subsection support)
1717 gcc_cv_as_subsections=no
1718 if test $in_tree_gas = yes ; then
1719 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
1720 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1721 gcc_cv_as_subsections="working .subsection -1"
1724 elif test x$gcc_cv_as != x; then
1725 # Check if we have .subsection
1726 echo ".subsection 1" > conftest.s
1727 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1728 gcc_cv_as_subsections=".subsection"
1729 if test x$gcc_cv_nm != x; then
1730 cat > conftest.s <<EOF
1731 conftest_label1: .word 0
1733 conftest_label2: .word 0
1736 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1737 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1738 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1739 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1742 gcc_cv_as_subsections="working .subsection -1"
1747 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1749 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1750 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1751 [Define if your assembler supports .subsection and .subsection -1 starts
1752 emitting at the beginning of your section.])
1754 AC_MSG_RESULT($gcc_cv_as_subsections)
1756 AC_MSG_CHECKING(assembler weak support)
1758 if test $in_tree_gas = yes ; then
1759 gcc_GAS_VERSION_GTE_IFELSE(2,2,0,[
1760 gcc_cv_as_weak="yes"
1762 elif test x$gcc_cv_as != x; then
1763 # Check if we have .weak
1764 echo " .weak foobar" > conftest.s
1765 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1766 gcc_cv_as_weak="yes"
1768 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1770 if test x"$gcc_cv_as_weak" = xyes; then
1771 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1773 AC_MSG_RESULT($gcc_cv_as_weak)
1775 AC_MSG_CHECKING(assembler hidden support)
1777 if test $in_tree_gas = yes ; then
1778 gcc_GAS_VERSION_GTE_IFELSE(2,12,1,[
1779 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1780 gcc_cv_as_hidden="yes"
1783 elif test x$gcc_cv_as != x; then
1784 # Check if we have .hidden
1785 echo " .hidden foobar" > conftest.s
1786 echo "foobar:" >> conftest.s
1787 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1788 gcc_cv_as_hidden="yes"
1790 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1792 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1793 # This is irritatingly difficult to feature test for. Look for
1794 # the date string after the version number.
1795 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1796 if echo "$ld_ver" | grep GNU > /dev/null; then
1798 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\([ ].*\|\)$,\1,p'`
1799 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1800 if test 0"$ld_date" -lt 20020404; then
1801 if test -n "$ld_date"; then
1802 # If there was date string, but was earlier than 2002-04-04, fail
1803 gcc_cv_as_hidden="no"
1804 elif test -z "$ld_vers"; then
1805 # If there was no date string nor ld version number, something is wrong
1806 gcc_cv_as_hidden="no"
1808 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1809 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1810 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1811 test -z "$ld_vers_patch" && ld_vers_patch=0
1812 if test "$ld_vers_major" -lt 2; then
1813 gcc_cv_as_hidden="no"
1814 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1815 gcc_cv_as_hidden="no"
1816 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1817 -a "$ld_vers_patch" -eq 0; then
1818 gcc_cv_as_hidden="no"
1825 if test x"$gcc_cv_as_hidden" = xyes; then
1826 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1827 [Define if your assembler supports .hidden.])
1829 AC_MSG_RESULT($gcc_cv_as_hidden)
1830 libgcc_visibility=$gcc_cv_as_hidden
1833 if test x"$gnu_ld_flag" = x"no"; then
1834 # Even if using gas with .hidden support, the resulting object files
1835 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1836 # N64 linkers, the problem is that the linker refuses to accept
1837 # -call_shared (passed by default to the linker) and -r (used to
1838 # link the object file generated without .hidden directives with
1839 # one that hides symbols), so we also lose.
1840 libgcc_visibility=no
1844 AC_SUBST(libgcc_visibility)
1846 AC_MSG_CHECKING(assembler leb128 support)
1848 if test $in_tree_gas = yes ; then
1849 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
1850 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1851 gcc_cv_as_leb128="yes"
1854 elif test x$gcc_cv_as != x; then
1855 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1856 cat > conftest.s <<EOF
1864 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1865 gcc_cv_as_leb128="yes"
1867 # GAS versions before 2.11 do not support uleb128,
1868 # despite appearing to.
1869 # ??? There exists an elf-specific test that will crash
1870 # the assembler. Perhaps it's better to figure out whether
1871 # arbitrary sections are supported and try the test.
1872 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1873 if echo "$as_ver" | grep GNU > /dev/null; then
1875 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1876 as_major=`echo $as_ver | sed 's/\..*//'`
1877 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1879 if test $as_major -eq 2 -a $as_minor -lt 11; then
1880 gcc_cv_as_leb128="no"
1884 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1886 if test x"$gcc_cv_as_leb128" = xyes; then
1887 AC_DEFINE(HAVE_AS_LEB128, 1,
1888 [Define if your assembler supports .uleb128.])
1890 AC_MSG_RESULT($gcc_cv_as_leb128)
1892 AC_MSG_CHECKING(assembler eh_frame optimization)
1893 gcc_cv_as_eh_frame=no
1894 if test $in_tree_gas = yes ; then
1895 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1896 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1897 gcc_cv_as_eh_frame="yes"
1900 elif test x$gcc_cv_as != x; then
1901 # Check if this is GAS.
1902 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1903 rm -f a.out 2> /dev/null
1904 if echo "$as_ver" | grep GNU > /dev/null; then
1905 # Versions up to and including 2.11.0 may mis-optimize
1906 # .eh_frame data. Try something.
1907 cat > conftest.s <<EOF
1914 .section .eh_frame,"aw",@progbits
1916 .4byte .LECIE1-.LSCIE1
1930 .4byte .LEFDE1-.LASFDE1
1932 .4byte .LASFDE1-__FRAME_BEGIN__
1941 cat > conftest.lit <<EOF
1942 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1943 0010 01000000 12000000 18000000 00000000 ................
1944 0020 08000000 04080000 0044 .........D
1946 cat > conftest.big <<EOF
1947 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1948 0010 00000001 00000012 00000018 00000000 ................
1949 0020 00000008 04000000 0844 .........D
1951 # If the assembler didn't choke, and we can objdump,
1952 # and we got the correct data, then succeed.
1953 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1954 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1955 | tail -3 > conftest.got \
1956 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1957 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1959 gcc_cv_as_eh_frame="yes"
1961 gcc_cv_as_eh_frame="bad"
1962 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1963 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1964 [Define if your assembler mis-optimizes .eh_frame data.])
1970 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1972 AC_MSG_CHECKING(assembler section merging support)
1973 gcc_cv_as_shf_merge=no
1974 if test $in_tree_gas = yes ; then
1975 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1976 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1977 gcc_cv_as_shf_merge=yes
1980 elif test x$gcc_cv_as != x; then
1981 # Check if we support SHF_MERGE sections
1982 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1983 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1984 gcc_cv_as_shf_merge=yes
1986 rm -f conftest.s conftest.o
1988 if test x"$gcc_cv_as_shf_merge" = xyes; then
1989 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1990 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1992 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1994 AC_MSG_CHECKING(assembler thread-local storage support)
2003 .section ".tdata","awT",@progbits
2006 ldq $27,__tls_get_addr($29) !literal!1
2007 lda $16,foo($29) !tlsgd!1
2008 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2009 ldq $27,__tls_get_addr($29) !literal!2
2010 lda $16,foo($29) !tlsldm!2
2011 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2012 ldq $1,foo($29) !gotdtprel
2013 ldah $2,foo($29) !dtprelhi
2014 lda $3,foo($2) !dtprello
2015 lda $4,foo($29) !dtprel
2016 ldq $1,foo($29) !gottprel
2017 ldah $2,foo($29) !tprelhi
2018 lda $3,foo($2) !tprello
2019 lda $4,foo($29) !tprel'
2026 .section ".tdata","awT",@progbits
2030 leal foo@TLSGD(,%ebx,1), %eax
2031 leal foo@TLSLDM(%ebx), %eax
2032 leal foo@DTPOFF(%eax), %edx
2033 movl foo@GOTTPOFF(%ebx), %eax
2034 subl foo@GOTTPOFF(%ebx), %eax
2035 addl foo@GOTNTPOFF(%ebx), %eax
2036 movl foo@INDNTPOFF, %eax
2037 movl $foo@TPOFF, %eax
2038 subl $foo@TPOFF, %eax
2039 leal foo@NTPOFF(%ecx), %eax'
2045 .section ".tdata","awT",@progbits
2049 leaq foo@TLSGD(%rip), %rdi
2050 leaq foo@TLSLD(%rip), %rdi
2051 leaq foo@DTPOFF(%rax), %rdx
2052 movq foo@GOTTPOFF(%rip), %rax
2053 movq $foo@TPOFF, %rax'
2059 .section ".tdata","awT",@progbits
2062 addl r16 = @ltoff(@dtpmod(foo#)), gp
2063 addl r17 = @ltoff(@dtprel(foo#)), gp
2064 addl r18 = @ltoff(@tprel(foo#)), gp
2065 addl r19 = @dtprel(foo#), gp
2066 adds r21 = @dtprel(foo#), r13
2067 movl r23 = @dtprel(foo#)
2068 addl r20 = @tprel(foo#), gp
2069 adds r22 = @tprel(foo#), r13
2070 movl r24 = @tprel(foo#)'
2076 .section ".tdata","awT",@progbits
2085 l %r1,foo@GOTNTPOFF(%r12)
2086 l %r1,0(%r1):tls_load:foo
2087 bas %r14,0(%r1,%r13):tls_gdcall:foo
2088 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2094 .section ".tdata","awT",@progbits
2102 lg %r1,foo@GOTNTPOFF(%r12)
2103 larl %r1,foo@INDNTPOFF
2104 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2105 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2110 if test -z "$tls_first_major"; then
2112 elif test $in_tree_gas = yes ; then
2113 gcc_GAS_VERSION_GTE_IFELSE($tls_first_major,$tls_first_minor,0,[
2116 elif test x$gcc_cv_as != x; then
2117 echo "$conftest_s" > conftest.s
2118 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
2122 rm -f conftest.s conftest.o
2124 if test "$gcc_cv_as_tls" = yes; then
2125 AC_DEFINE(HAVE_AS_TLS, 1,
2126 [Define if your assembler supports thread-local storage.])
2128 AC_MSG_RESULT($gcc_cv_as_tls)
2131 # All TARGET_ABI_OSF targets.
2132 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2133 AC_CACHE_CHECK([assembler supports explicit relocations],
2134 gcc_cv_as_explicit_relocs, [
2135 gcc_cv_as_explicit_relocs=unknown
2136 if test $in_tree_gas = yes ; then
2137 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2138 gcc_cv_as_explicit_relocs=yes
2140 elif test x$gcc_cv_as != x; then
2141 cat > conftest.s << 'EOF'
2144 extbl $3, $2, $3 !lituse_bytoff!1
2145 ldq $2, a($29) !literal!1
2146 ldq $4, b($29) !literal!2
2147 ldq_u $3, 0($2) !lituse_base!1
2148 ldq $27, f($29) !literal!5
2149 jsr $26, ($27), f !lituse_jsr!5
2150 ldah $29, 0($26) !gpdisp!3
2151 lda $0, c($29) !gprel
2152 ldah $1, d($29) !gprelhigh
2153 lda $1, d($1) !gprellow
2154 lda $29, 0($29) !gpdisp!3
2156 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2157 gcc_cv_as_explicit_relocs=yes
2159 gcc_cv_as_explicit_relocs=no
2161 rm -f conftest.s conftest.o
2164 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2165 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2166 [Define if your assembler supports explicit relocations.])
2170 AC_CACHE_CHECK([assembler .register pseudo-op support],
2171 gcc_cv_as_register_pseudo_op, [
2172 gcc_cv_as_register_pseudo_op=unknown
2173 if test x$gcc_cv_as != x; then
2174 # Check if we have .register
2175 echo ".register %g2, #scratch" > conftest.s
2176 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2177 gcc_cv_as_register_pseudo_op=yes
2179 gcc_cv_as_register_pseudo_op=no
2181 rm -f conftest.s conftest.o
2184 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2185 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2186 [Define if your assembler supports .register.])
2189 AC_CACHE_CHECK([assembler supports -relax],
2190 gcc_cv_as_relax_opt, [
2191 gcc_cv_as_relax_opt=unknown
2192 if test x$gcc_cv_as != x; then
2193 # Check if gas supports -relax
2194 echo ".text" > conftest.s
2195 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2196 gcc_cv_as_relax_opt=yes
2198 gcc_cv_as_relax_opt=no
2200 rm -f conftest.s conftest.o
2203 if test "x$gcc_cv_as_relax_opt" = xyes; then
2204 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2205 [Define if your assembler supports -relax option.])
2208 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2209 gcc_cv_as_sparc_ua_pcrel, [
2210 gcc_cv_as_sparc_ua_pcrel=unknown
2211 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2212 gcc_cv_as_sparc_ua_pcrel=no
2213 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2214 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2215 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2216 gcc_cv_as_sparc_ua_pcrel=yes
2218 rm -f conftest.s conftest.o conftest
2221 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2222 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2223 [Define if your assembler and linker support unaligned PC relative relocs.])
2226 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2227 gcc_cv_as_sparc_ua_pcrel_hidden, [
2228 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2229 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2230 if test x$gcc_cv_objdump != x; then
2231 gcc_cv_as_sparc_ua_pcrel_hidden=no
2232 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2233 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2234 echo "foo: .skip 4" >> conftest.s
2235 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2236 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2237 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2238 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2239 if $gcc_cv_objdump -R conftest 2> /dev/null \
2240 | grep 'DISP32' > /dev/null 2>&1; then
2243 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2247 rm -f conftest.s conftest.o conftest
2249 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2252 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2253 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2254 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2257 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2258 gcc_cv_as_offsetable_lo10, [
2259 gcc_cv_as_offsetable_lo10=unknown
2260 if test "x$gcc_cv_as" != x; then
2261 # Check if assembler has offsetable %lo()
2262 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2263 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2264 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2266 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2267 > /dev/null 2>&1; then
2268 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2269 gcc_cv_as_offsetable_lo10=no
2271 gcc_cv_as_offsetable_lo10=yes
2274 gcc_cv_as_offsetable_lo10=no
2276 rm -f conftest.s conftest.o conftest1.s conftest1.o
2279 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2280 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2281 [Define if your assembler supports offsetable %lo().])
2287 i[34567]86-*-* | x86_64-*-*)
2289 AC_MSG_CHECKING(assembler instructions)
2290 gcc_cv_as_instructions=
2291 if test $in_tree_gas = yes ; then
2292 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
2293 gcc_cv_as_instructions="filds fists"
2295 elif test x$gcc_cv_as != x; then
2296 set "filds fists" "filds mem; fists mem"
2299 echo "$2" > conftest.s
2300 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2301 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2305 rm -f conftest.s conftest.o
2307 if test x"$gcc_cv_as_instructions" != x; then
2308 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2310 AC_MSG_RESULT($gcc_cv_as_instructions)
2312 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2313 gcc_cv_as_gotoff_in_data=no
2314 if test $in_tree_gas = yes ; then
2315 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2316 gcc_cv_as_gotoff_in_data=yes
2318 elif test x$gcc_cv_as != x; then
2319 cat > conftest.s <<EOF
2326 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2327 gcc_cv_as_gotoff_in_data=yes
2330 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2331 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2332 [Define true if the assembler supports '.long foo@GOTOFF'.])
2333 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2337 AC_CACHE_CHECK([assembler supports ltoffx and ldxmov],
2338 gcc_cv_as_ltoffx_ldxmov_relocs, [
2339 gcc_cv_as_ltoffx_ldxmov_relocs=unknown
2340 if test $in_tree_gas = yes ; then
2341 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2342 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2344 elif test x$gcc_cv_as != x; then
2345 cat > conftest.s << 'EOF'
2348 addl r15 = @ltoffx(x#), gp
2350 ld8.mov r16 = [r15], x#
2353 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2354 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2356 gcc_cv_as_ltoffx_ldxmov_relocs=no
2358 rm -f conftest.s conftest.o
2361 if test "x$gcc_cv_as_ltoffx_ldxmov_relocs" = xyes; then
2362 AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2363 [Define if your assembler supports ltoffx and ldxmov relocations.])
2368 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2369 gcc_cv_as_dwarf2_debug_line=no
2370 # ??? Not all targets support dwarf2 debug_line, even within a version
2371 # of gas. Moreover, we need to emit a valid instruction to trigger any
2372 # info to the output file. So, as supported targets are added to gas 2.11,
2373 # add some instruction here to (also) show we expect this might work.
2374 # ??? Once 2.11 is released, probably need to add first known working
2375 # version to the per-target configury.
2377 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2378 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-*)
2385 if test $in_tree_gas = yes ; then
2386 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2387 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2388 && test x"$insn" != x ; then
2389 gcc_cv_as_dwarf2_debug_line="yes"
2392 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2393 echo ' .file 1 "conftest.s"' > conftest.s
2394 echo ' .loc 1 3 0' >> conftest.s
2395 echo " $insn" >> conftest.s
2396 # ??? This fails with non-gnu grep.
2397 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2398 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2399 # The .debug_line file table must be in the exact order that
2400 # we specified the files, since these indices are also used
2401 # by DW_AT_decl_file. Approximate this test by testing if
2402 # the assembler bitches if the same index is assigned twice.
2403 echo ' .file 1 "foo.s"' > conftest.s
2404 echo ' .file 1 "bar.s"' >> conftest.s
2405 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2407 gcc_cv_as_dwarf2_debug_line="no"
2409 gcc_cv_as_dwarf2_debug_line="yes"
2412 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2414 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2415 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2416 [Define if your assembler supports dwarf2 .file/.loc directives,
2417 and preserves file table indices exactly as given.])
2419 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2421 AC_MSG_CHECKING(assembler --gdwarf2 support)
2422 gcc_cv_as_gdwarf2_flag=no
2423 if test $in_tree_gas = yes ; then
2424 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2425 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2426 && test x"$insn" != x ; then
2427 gcc_cv_as_gdwarf2_flag="yes"
2430 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2431 echo '' > conftest.s
2432 # ??? This fails with non-gnu grep.
2433 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2435 gcc_cv_as_gdwarf2_flag="yes"
2437 rm -f conftest.s conftest.o
2439 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2440 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2441 [Define if your assembler supports the --gdwarf2 option.])
2443 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2445 AC_MSG_CHECKING(assembler --gstabs support)
2446 gcc_cv_as_gstabs_flag=no
2447 if test $in_tree_gas = yes ; then
2448 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2449 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2450 && test x"$insn" != x ; then
2451 gcc_cv_as_gstabs_flag="yes"
2454 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2455 echo '' > conftest.s
2456 # ??? This fails with non-gnu grep.
2457 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2458 gcc_cv_as_gstabs_flag="yes"
2460 rm -f conftest.s conftest.o
2462 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2463 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2464 [Define if your assembler supports the --gstabs option.])
2466 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2468 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2469 gcc_cv_ld_ro_rw_mix=unknown
2470 if test $in_tree_ld = yes ; then
2471 if test "$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
2472 gcc_cv_ld_ro_rw_mix=read-write
2474 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2475 echo '.section "myfoosect", "a"' > conftest1.s
2476 echo '.section "myfoosect", "aw"' > conftest2.s
2477 echo '.byte 1' >> conftest2.s
2478 echo '.section "myfoosect", "a"' > conftest3.s
2479 echo '.byte 0' >> conftest3.s
2480 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2481 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2482 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2483 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2484 conftest2.o conftest3.o; then
2485 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2486 | grep -A1 myfoosect`
2487 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2488 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2489 gcc_cv_ld_ro_rw_mix=read-only
2491 gcc_cv_ld_ro_rw_mix=read-write
2496 rm -f conftest.* conftest[123].*
2499 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2500 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2501 [Define if your linker links a mix of read-only
2502 and read-write sections into a read-write section.])
2504 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2506 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2507 gcc_cv_ld_eh_frame_hdr=no
2508 if test $in_tree_ld = yes ; then
2509 if test "$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
2510 gcc_cv_ld_eh_frame_hdr=yes
2512 elif test x$gcc_cv_ld != x; then
2513 # Check if linker supports --eh-frame-hdr option
2514 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2515 gcc_cv_ld_eh_frame_hdr=yes
2518 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2519 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2520 [Define if your linker supports --eh-frame-hdr option.])
2522 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2524 # Miscellaneous target-specific checks.
2527 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2528 gcc_cv_mips_libgloss_startup=no
2529 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2530 if test "x$exec_prefix" = xNONE; then
2531 if test "x$prefix" = xNONE; then
2532 test_prefix=/usr/local
2537 test_prefix=$exec_prefix
2539 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2541 if grep '^STARTUP' $f > /dev/null 2>&1; then
2542 gcc_cv_mips_libgloss_startup=yes
2546 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2547 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2548 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2550 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2554 if test x$with_sysroot = x && test x$host = x$target \
2555 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2556 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2559 # Figure out what language subdirectories are present.
2560 # Look if the user specified --enable-languages="..."; if not, use
2561 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2563 # NB: embedded tabs in this IF block -- do not untabify
2564 if test x"${enable_languages+set}" != xset; then
2565 if test x"${LANGUAGES+set}" = xset; then
2566 enable_languages="${LANGUAGES}"
2567 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2570 enable_languages=all
2573 if test x"${enable_languages}" = x \
2574 || test x"${enable_languages}" = xyes;
2576 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2579 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2581 # First scan to see if an enabled language requires some other language.
2582 # We assume that a given config-lang.in will list all the language
2583 # front ends it requires, even if some are required indirectly.
2584 for lang in ${srcdir}/*/config-lang.in ..
2589 # The odd quoting in the next line works around
2590 # an apparent bug in bash 1.12 on linux.
2592 ${srcdir}/[*]/config-lang.in)
2595 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2596 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2597 for other in $this_lang_requires
2599 case ,${enable_languages}, in
2605 enable_languages="$enable_languages,$other"
2614 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2617 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) ;;
2626 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2627 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2628 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2629 if test "x$lang_alias" = x
2631 echo "$lang doesn't set \$language." 1>&2
2634 case ${build_by_default},${enable_languages}, in
2635 *,$lang_alias,*) add_this_lang=yes ;;
2636 no,*) add_this_lang=no ;;
2637 *,all,*) add_this_lang=yes ;;
2638 *) add_this_lang=no ;;
2640 found_languages="${found_languages} ${lang_alias}"
2641 if test x"${add_this_lang}" = xyes; then
2643 ${srcdir}/ada/config-lang.in)
2644 if test x$have_gnat = xyes ; then
2645 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2649 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2659 for expected_language in ${expected_languages} ..
2661 if test "${expected_language}" != ..; then
2662 missing_language="${expected_language}"
2663 if test "${expected_language}" = "c" \
2664 || test "${expected_language}" = "all"; then
2667 for found_language in ${found_languages} ..
2669 if test "${found_language}" != ..; then
2670 if test "${expected_language}" = "${found_language}"; then
2675 if test "x${missing_language}" != x; then
2676 missing_languages="${missing_languages} ${missing_language}"
2681 if test "x$missing_languages" != x; then
2683 The following requested languages were not found:${missing_languages}
2684 The following languages were available: c${found_languages}])
2687 # Make gthr-default.h if we have a thread file.
2689 if test $thread_file != single; then
2690 rm -f gthr-default.h
2691 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2692 gthread_flags=-DHAVE_GTHR_DEFAULT
2694 AC_SUBST(gthread_flags)
2696 # Find out what GC implementation we want, or may, use.
2698 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2705 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2710 echo "Using $GGC for garbage collection."
2712 # Use the system's zlib library.
2714 zlibinc="-I\$(srcdir)/../zlib"
2715 AC_ARG_WITH(system-zlib,
2716 [ --with-system-zlib use installed libz],
2723 dnl Very limited version of automake's enable-maintainer-mode
2725 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2726 dnl maintainer-mode is disabled by default
2727 AC_ARG_ENABLE(maintainer-mode,
2728 [ --enable-maintainer-mode
2729 enable make rules and dependencies not useful
2730 (and sometimes confusing) to the casual installer],
2731 maintainer_mode=$enableval,
2734 AC_MSG_RESULT($maintainer_mode)
2736 if test "$maintainer_mode" = "yes"; then
2743 # Make empty files to contain the specs and options for each language.
2744 # Then add #include lines to for a compiler that has specs and/or options.
2749 for subdir in . $subdirs
2751 if test -f $srcdir/$subdir/lang-specs.h; then
2752 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2754 if test -f $srcdir/$subdir/lang-options.h; then
2755 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2757 if test -f $srcdir/$subdir/$subdir-tree.def; then
2758 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2762 # These (without "all_") are set in each config-lang.in.
2763 # `language' must be a single word so is spelled singularly.
2768 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2769 # List of language makefile fragments.
2771 # Files for gengtype
2772 all_gtfiles="$target_gtfiles"
2773 # Files for gengtype with language
2774 all_gtfiles_files_langs=
2775 all_gtfiles_files_files=
2777 # Add the language fragments.
2778 # Languages are added via two mechanisms. Some information must be
2779 # recorded in makefile variables, these are defined in config-lang.in.
2780 # We accumulate them and plug them into the main Makefile.
2781 # The other mechanism is a set of hooks for each of the main targets
2782 # like `clean', `install', etc.
2784 language_fragments="Make-lang"
2785 language_hooks="Make-hooks"
2787 for s in .. $subdirs
2797 . ${srcdir}/$s/config-lang.in
2798 if test "x$language" = x
2800 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2803 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2804 if test -f ${srcdir}/$s/Makefile.in
2805 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2807 all_languages="$all_languages $language"
2808 if test "x$boot_language" = xyes
2810 all_boot_languages="$all_boot_languages $language"
2812 all_compilers="$all_compilers $compilers"
2813 all_stagestuff="$all_stagestuff $stagestuff"
2814 all_outputs="$all_outputs $outputs"
2815 all_gtfiles="$all_gtfiles $gtfiles"
2816 for f in .. $gtfiles
2820 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2821 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2827 # Pick up gtfiles for c
2830 . ${srcdir}/c-config-lang.in
2831 all_gtfiles="$all_gtfiles $gtfiles"
2832 for f in .. $gtfiles
2836 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2837 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2842 for language in .. $all_languages
2844 if test $language != ".."
2846 check_languages="$check_languages check-$language"
2850 # Since we can't use `::' targets, we link each language in
2851 # with a set of hooks, reached indirectly via lang.${target}.
2855 target_list="all.build all.cross start.encap rest.encap tags \
2856 info dvi generated-manpages \
2857 install-normal install-common install-info install-man \
2859 mostlyclean clean distclean extraclean maintainer-clean \
2860 stage1 stage2 stage3 stage4"
2861 for t in $target_list
2864 for lang in .. $all_languages
2866 if test $lang != ".."; then
2870 echo "lang.$t: $x" >> Make-hooks
2875 echo "dir ." > .gdbinit
2876 echo "dir ${srcdir}" >> .gdbinit
2877 if test x$gdb_needs_out_file_path = xyes
2879 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2881 if test "x$subdirs" != x; then
2884 echo "dir ${srcdir}/$s" >> .gdbinit
2887 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2889 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2890 # absolute path for gcc_tooldir based on inserting the number of up-directory
2891 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2892 # $(libsubdir)/@(unlibsubdir) based path.
2893 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2894 # make and thus we'd get different behavior depending on where we built the
2896 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2897 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2899 changequote(<<, >>)dnl
2900 # An explanation of the sed strings:
2901 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2902 # -e 's|/$||' match a trailing forward slash and eliminates it
2903 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2904 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2906 # (*) Note this pattern overwrites the first character of the string
2907 # with a forward slash if one is not already present. This is not a
2908 # problem because the exact names of the sub-directories concerned is
2909 # unimportant, just the number of them matters.
2911 # The practical upshot of these patterns is like this:
2913 # prefix exec_prefix result
2914 # ------ ----------- ------
2916 # /foo/ /foo/bar ../
2917 # /foo /foo/bar/ ../
2918 # /foo/ /foo/bar/ ../
2919 # /foo /foo/bar/ugg ../../
2922 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2923 changequote([, ])dnl
2925 AC_SUBST(gcc_tooldir)
2928 # Find a directory in which to install a shared libgcc.
2930 AC_ARG_ENABLE(version-specific-runtime-libs,
2931 [ --enable-version-specific-runtime-libs
2932 specify that runtime libraries should be
2933 installed in a compiler-specific directory])
2935 AC_ARG_WITH(slibdir,
2936 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2937 slibdir="$with_slibdir",
2938 if test "${enable_version_specific_runtime_libs+set}" = set; then
2939 slibdir='$(libsubdir)'
2940 elif test "$host" != "$target"; then
2941 slibdir='$(build_tooldir)/lib'
2947 objdir=`${PWDCMD-pwd}`
2950 # Process the language and host/target makefile fragments.
2951 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2953 # Substitute configuration variables
2956 AC_SUBST(all_boot_languages)
2957 AC_SUBST(all_compilers)
2958 AC_SUBST(all_gtfiles)
2959 AC_SUBST(all_gtfiles_files_langs)
2960 AC_SUBST(all_gtfiles_files_files)
2961 AC_SUBST(all_lang_makefiles)
2962 AC_SUBST(all_languages)
2963 AC_SUBST(all_stagestuff)
2964 AC_SUBST(build_exeext)
2965 AC_SUBST(build_install_headers_dir)
2966 AC_SUBST(build_xm_file_list)
2967 AC_SUBST(build_xm_file)
2968 AC_SUBST(build_xm_defines)
2969 AC_SUBST(check_languages)
2970 AC_SUBST(cc_set_by_configure)
2971 AC_SUBST(quoted_cc_set_by_configure)
2972 AC_SUBST(cpp_install_dir)
2973 AC_SUBST(dep_host_xmake_file)
2974 AC_SUBST(dep_tmake_file)
2975 AC_SUBST(extra_headers_list)
2976 AC_SUBST(extra_objs)
2977 AC_SUBST(extra_parts)
2978 AC_SUBST(extra_passes)
2979 AC_SUBST(extra_programs)
2980 AC_SUBST(float_h_file)
2981 AC_SUBST(gcc_config_arguments)
2982 AC_SUBST(gcc_gxx_include_dir)
2983 AC_SUBST(libstdcxx_incdir)
2984 AC_SUBST(gcc_version)
2985 AC_SUBST(gcc_version_full)
2986 AC_SUBST(gcc_version_trigger)
2987 AC_SUBST(host_exeext)
2988 AC_SUBST(host_extra_gcc_objs)
2989 AC_SUBST(host_xm_file_list)
2990 AC_SUBST(host_xm_file)
2991 AC_SUBST(host_xm_defines)
2992 AC_SUBST(out_host_hook_obj)
2994 AC_SUBST(lang_options_files)
2995 AC_SUBST(lang_specs_files)
2996 AC_SUBST(lang_tree_files)
2997 AC_SUBST(local_prefix)
2999 AC_SUBST(objc_boehm_gc)
3001 AC_SUBST(out_object_file)
3002 AC_SUBST(stage_prefix_set_by_configure)
3003 AC_SUBST(quoted_stage_prefix_set_by_configure)
3004 AC_SUBST(symbolic_link)
3005 AC_SUBST(thread_file)
3006 AC_SUBST(tm_file_list)
3008 AC_SUBST(tm_defines)
3009 AC_SUBST(tm_p_file_list)
3012 AC_SUBST(xm_defines)
3013 AC_SUBST(target_alias)
3014 AC_SUBST(c_target_objs)
3015 AC_SUBST(cxx_target_objs)
3016 AC_SUBST(target_cpu_default)
3018 AC_SUBST_FILE(target_overrides)
3019 AC_SUBST_FILE(host_overrides)
3020 AC_SUBST_FILE(language_fragments)
3021 AC_SUBST_FILE(language_hooks)
3023 # Echo that links are built
3024 if test x$host = x$target
3032 if test x$host != x$build
3034 str3=" on a $build system"
3037 if test "x$str2" != x || test "x$str3" != x
3042 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3044 if test "x$str2" != x || test "x$str3" != x
3046 echo " ${str2}${str3}." 1>&2
3049 # Truncate the target if necessary
3050 if test x$host_truncate_target != x; then
3051 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
3054 # Configure the subdirectories
3055 # AC_CONFIG_SUBDIRS($subdirs)
3057 # Create the Makefile
3058 # and configure language subdirectories
3059 AC_OUTPUT($all_outputs,
3061 case x$CONFIG_HEADERS in
3062 xauto-host.h:config.in)
3065 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3066 # bootstrapping and the installation procedure can still use
3067 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3068 # FLAGS_TO_PASS has been modified to solve the problem there.
3069 # This is virtually a duplicate of what happens in configure.lang; we do
3070 # an extra check to make sure this only happens if ln -s can be used.
3071 if test "$symbolic_link" = "ln -s"; then
3072 for d in .. ${subdirs} fixinc ; do
3073 if test $d != ..; then
3074 STARTDIR=`${PWDCMD-pwd}`
3076 for t in stage1 stage2 stage3 stage4 include
3079 $symbolic_link ../$t $t 2>/dev/null
3085 # Avoid having to add intl to our include paths.
3086 if test -f intl/libintl.h; then
3087 echo creating libintl.h
3088 echo '#include "intl/libintl.h"' >libintl.h
3092 symbolic_link='$symbolic_link'