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 $have_valgrind_h = no; then
421 AC_MSG_ERROR([*** Can't find both valgrind and valgrind.h])
423 valgrind_path_defines=-DVALGRIND_PATH='\"'$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 $gcc_cv_glibc = yes; then
680 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
685 gcc_AC_HEADER_STDBOOL
688 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
689 fcntl.h unistd.h sys/file.h sys/time.h \
690 sys/resource.h sys/param.h sys/times.h sys/stat.h \
691 direct.h malloc.h langinfo.h ldfcn.h)
693 # Check for thread headers.
694 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
695 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
697 # These tests can't be done till we know if we have limits.h.
700 gcc_AC_C_FLOAT_FORMAT
706 # Stage specific cflags for build.
712 stage1_cflags="-Wa,-J"
718 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
719 # sources; use -no-cpp-precomp to get to GNU cpp.
720 # Apple's GCC has bugs in designated initializer handling, so disable
722 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
725 AC_SUBST(stage1_cflags)
727 # These libraries may be used by collect2.
728 # We may need a special search path to get them linked.
729 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
731 for libs in '' -lld -lmld \
732 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
733 '-L/usr/lib/cmplrs/cc3.11 -lmld'
736 AC_TRY_LINK_FUNC(ldopen,
737 [gcc_cv_collect2_libs="$libs"; break])
740 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
741 case $gcc_cv_collect2_libs in
743 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
745 AC_SUBST(COLLECT2_LIBS)
747 # When building Ada code on Alpha, we need exc_resume which is usually in
748 # -lexc. So test for it.
751 AC_SEARCH_LIBS(exc_resume, exc)
754 AC_SUBST(GNAT_LIBEXC)
756 # See if the stage1 system preprocessor understands the ANSI C
757 # preprocessor stringification operator. (Used by symcat.h.)
760 # Use <inttypes.h> only if it exists,
761 # doesn't clash with <sys/types.h>, and declares intmax_t.
762 AC_MSG_CHECKING(for inttypes.h)
763 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
765 [#include <sys/types.h>
766 #include <inttypes.h>],
768 [gcc_cv_header_inttypes_h=yes],
769 gcc_cv_header_inttypes_h=no)])
770 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
771 if test $gcc_cv_header_inttypes_h = yes; then
772 AC_DEFINE(HAVE_INTTYPES_H, 1,
773 [Define if you have a working <inttypes.h> header file.])
776 dnl Disabled until we have a complete test for buggy enum bitfields.
777 dnl gcc_AC_C_ENUM_BF_UNSIGNED
779 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
780 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
781 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
784 AC_CHECK_TYPE(ssize_t, int)
786 # Try to determine the array type of the second argument of getgroups
787 # for the target system (int or gid_t).
789 if test "${target}" = "${build}"; then
790 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
793 # This condition may need some tweaking. It should include all
794 # targets where the array type of the second argument of getgroups
795 # is int and the type of gid_t is not equivalent to int.
796 *-*-sunos* | *-*-ultrix*)
797 TARGET_GETGROUPS_T=int
800 TARGET_GETGROUPS_T=gid_t
804 AC_SUBST(TARGET_GETGROUPS_T)
806 gcc_AC_FUNC_PRINTF_PTR
811 *** UWIN may not be used as a host platform because
812 *** linking with posix.dll is not allowed by the GNU GPL])
815 # Under VMS, vfork works very different than on Unix. The standard test
816 # won't work, and it isn't easily adaptable. It makes more sense to
818 ac_cv_func_vfork_works=yes
822 AC_FUNC_MMAP_ANYWHERE
827 # We will need to find libiberty.h and ansidecl.h
828 saved_CFLAGS="$CFLAGS"
829 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
830 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
831 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
832 fprintf_unlocked strstr errno vasprintf \
833 malloc realloc calloc free basename getopt clock, , ,[
834 #include "ansidecl.h"
835 #include "system.h"])
837 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
838 #include "ansidecl.h"
840 #ifdef HAVE_SYS_RESOURCE_H
841 #include <sys/resource.h>
846 #include "ansidecl.h"
848 #ifdef HAVE_SYS_RESOURCE_H
849 #include <sys/resource.h>
851 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
852 [Define to \`long' if <sys/resource.h> doesn't define.])])
854 gcc_AC_CHECK_DECLS(ldgetname, , ,[
855 #include "ansidecl.h"
862 gcc_AC_CHECK_DECLS(times, , ,[
863 #include "ansidecl.h"
865 #ifdef HAVE_SYS_TIMES_H
866 #include <sys/times.h>
870 # More time-related stuff.
871 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
873 #include "ansidecl.h"
875 #ifdef HAVE_SYS_TIMES_H
876 #include <sys/times.h>
878 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
879 if test $ac_cv_struct_tms = yes; then
880 AC_DEFINE(HAVE_STRUCT_TMS, 1,
881 [Define if <sys/times.h> defines struct tms.])
884 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
885 # revisit after autoconf 2.50.
886 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
888 #include "ansidecl.h"
890 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
891 if test $gcc_cv_type_clock_t = yes; then
892 AC_DEFINE(HAVE_CLOCK_T, 1,
893 [Define if <time.h> defines clock_t.])
896 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
898 #include "ansidecl.h"
901 [if ((uchar *)0) return 0;
902 if (sizeof(uchar)) return 0;],
903 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
904 if test $ac_cv_type_uchar = yes; then
905 AC_DEFINE(HAVE_UCHAR, 1,
906 [Define if <sys/types.h> defines \`uchar'.])
909 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
910 CFLAGS="$saved_CFLAGS"
912 gcc_AC_INITFINI_ARRAY
914 # mkdir takes a single argument on some systems.
915 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
923 # With Setjmp/Longjmp based exception handling.
924 AC_ARG_ENABLE(sjlj-exceptions,
925 [ --enable-sjlj-exceptions
926 arrange to use setjmp/longjmp exception handling],
927 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
928 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
929 [Define 0/1 to force the choice for exception handling model.])])
931 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
932 # Use libunwind based exception handling.
933 AC_ARG_ENABLE(libunwind-exceptions,
934 [ --enable-libunwind-exceptions force use libunwind for exceptions],
935 use_libunwind_exceptions=$enableval,
936 use_libunwind_exceptions=$use_libunwind_default)
937 if test x"$use_libunwind_exceptions" = xyes; then
938 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
939 [Define if gcc should use -lunwind.])
942 # --------------------------------------------------------
943 # Build, host, and target specific configuration fragments
944 # --------------------------------------------------------
949 build_install_headers_dir=install-headers-tar
954 host_truncate_target=
957 # Decode the host machine, then the target machine.
958 # For the host machine, we save the xm_file variable as host_xm_file;
959 # then we decode the target machine and forget everything else
960 # that came from the host machine.
961 for machine in $build $host $target; do
962 . ${srcdir}/config.gcc
965 extra_objs="${host_extra_objs} ${extra_objs}"
967 # Default the target-machine variables that were not explicitly set.
968 if test x"$tm_file" = x
969 then tm_file=$cpu_type/$cpu_type.h; fi
971 if test x"$extra_headers" = x
972 then extra_headers=; fi
974 if test x$md_file = x
975 then md_file=$cpu_type/$cpu_type.md; fi
977 if test x$out_file = x
978 then out_file=$cpu_type/$cpu_type.c; fi
980 if test x"$tmake_file" = x
981 then tmake_file=$cpu_type/t-$cpu_type
984 if test x"$dwarf2" = xyes
985 then tm_file="$tm_file tm-dwarf2.h"
988 # Say what files are being used for the output code and MD file.
989 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
990 echo "Using \`$srcdir/config/$md_file' as machine description file."
992 # If any of the xm_file variables contain nonexistent files, warn
993 # about them and drop them.
996 for x in $build_xm_file; do
997 if test -f $srcdir/config/$x
999 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1005 for x in $host_xm_file; do
1006 if test -f $srcdir/config/$x
1008 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1014 for x in $xm_file; do
1015 if test -f $srcdir/config/$x
1017 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1023 for f in $tm_file; do
1026 if test $count = ax; then
1027 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1029 echo "Using the following target machine macro files:"
1030 for f in $tm_file; do
1031 echo " $srcdir/config/$f"
1035 if test x$need_64bit_hwint = xyes; then
1036 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1037 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1041 for f in $host_xm_file; do
1044 if test $count = a; then
1046 elif test $count = ax; then
1047 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1049 echo "Using the following host machine macro files:"
1050 for f in $host_xm_file; do
1051 echo " $srcdir/config/$f"
1054 echo "Using ${out_host_hook_obj} for host machine hooks."
1056 if test "$host_xm_file" != "$build_xm_file"; then
1058 for f in $build_xm_file; do
1061 if test $count = a; then
1063 elif test $count = ax; then
1064 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1066 echo "Using the following build machine macro files:"
1067 for f in $build_xm_file; do
1068 echo " $srcdir/config/$f"
1073 if test x$thread_file = x; then
1074 if test x$target_thread_file != x; then
1075 thread_file=$target_thread_file
1077 thread_file='single'
1081 # Look for a file containing extra machine modes.
1082 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1083 extra_modes_file='$(srcdir)'/config/${extra_modes}
1084 AC_SUBST(extra_modes_file)
1085 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "$extra_modes",
1086 [Define to the name of a file containing a list of extra machine modes
1087 for this architecture.])
1088 AC_DEFINE(EXTRA_CC_MODES, 1,
1089 [Define if the target architecture needs extra machine modes to represent
1090 the results of comparisons.])
1093 # auto-host.h is the file containing items generated by autoconf and is
1094 # the first file included by config.h.
1095 # If host=build, it is correct to have bconfig include auto-host.h
1096 # as well. If host!=build, we are in error and need to do more
1097 # work to find out the build config parameters.
1098 if test x$host = x$build
1100 build_auto=auto-host.h
1103 # We create a subdir, then run autoconf in the subdir.
1104 # To prevent recursion we set host and build for the new
1105 # invocation of configure to the build for this invocation
1112 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1113 *) realsrcdir=../${srcdir};;
1115 saved_CFLAGS="${CFLAGS}"
1116 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1117 ${realsrcdir}/configure \
1118 --target=$target_alias --host=$build_alias --build=$build_alias
1119 CFLAGS="${saved_CFLAGS}"
1121 # We just finished tests for the build machine, so rename
1122 # the file auto-build.h in the gcc directory.
1123 mv auto-host.h ../auto-build.h
1126 build_auto=auto-build.h
1127 FORBUILD=../build-$build_alias
1131 tm_file="${tm_file} defaults.h"
1132 tm_p_file="${tm_p_file} tm-preds.h"
1133 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1134 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1135 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1136 # put this back in temporarily.
1137 xm_file="ansidecl.h ${xm_file}"
1143 # Truncate the target if necessary
1144 if test x$host_truncate_target != x; then
1145 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
1148 # Get the version trigger filename from the toplevel
1149 if test "${with_gcc_version_trigger+set}" = set; then
1150 gcc_version_trigger=$with_gcc_version_trigger
1152 gcc_version_trigger=${srcdir}/version.c
1155 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1156 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1158 # Compile in configure arguments.
1159 if test -f configargs.h ; then
1160 # Being re-configured.
1161 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1162 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1164 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1166 cat > configargs.h <<EOF
1167 /* Generated automatically. */
1168 static const char configuration_arguments[] = "$gcc_config_arguments";
1169 static const char thread_model[] = "$thread_file";
1173 # Internationalization
1175 VERSION="$gcc_version"
1179 # Enable NLS support by default
1181 [ --enable-nls use Native Language Support (default)],
1184 # if cross compiling, disable NLS support.
1185 # It's not worth the trouble, at least for now.
1187 if test "${build}" != "${host}" && test "x$enable_nls" = "xyes"; then
1188 AC_MSG_WARN(Disabling NLS support for canadian cross compiler.)
1194 # Windows32 Registry support for specifying GCC installation paths.
1195 AC_ARG_ENABLE(win32-registry,
1196 [ --disable-win32-registry
1197 disable lookup of installation paths in the
1198 Registry on Windows hosts
1199 --enable-win32-registry enable registry lookup (default)
1200 --enable-win32-registry=KEY
1201 use KEY instead of GCC version as the last portion
1202 of the registry key],,)
1204 win32 | pe | cygwin* | mingw32* | uwin*)
1205 AC_MSG_CHECKING(whether windows registry support is requested)
1206 if test "x$enable_win32_registry" != xno; then
1207 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1208 [Define to 1 if installation paths should be looked up in Windows32
1209 Registry. Ignored on non windows32 hosts.])
1211 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1216 # Check if user specified a different registry key.
1217 case "x${enable_win32_registry}" in
1220 gcc_cv_win32_registry_key="$VERSION"
1223 # no registry lookup.
1224 gcc_cv_win32_registry_key=''
1227 # user-specified key.
1228 gcc_cv_win32_registry_key="$enable_win32_registry"
1232 if test "x$enable_win32_registry" != xno; then
1233 AC_MSG_CHECKING(registry key on windows hosts)
1234 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1235 [Define to be the last portion of registry key on windows hosts.])
1236 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1241 # Get an absolute path to the GCC top-level source directory
1242 holddir=`${PWDCMD-pwd}`
1244 topdir=`${PWDCMD-pwd}`
1247 # Conditionalize the makefile for this host machine.
1248 # Make-host contains the concatenation of all host makefile fragments
1249 # [there can be more than one]. This file is built by configure.frag.
1250 host_overrides=Make-host
1251 dep_host_xmake_file=
1252 for f in .. ${host_xmake_file}
1254 if test -f ${srcdir}/config/$f
1256 dep_host_xmake_file="${dep_host_xmake_file} ${srcdir}/config/$f"
1260 # Conditionalize the makefile for this target machine.
1261 # Make-target contains the concatenation of all host makefile fragments
1262 # [there can be more than one]. This file is built by configure.frag.
1263 target_overrides=Make-target
1265 for f in .. ${tmake_file}
1267 if test -f ${srcdir}/config/$f
1269 dep_tmake_file="${dep_tmake_file} ${srcdir}/config/$f"
1273 symbolic_link='ln -s'
1275 # If the host doesn't support symlinks, modify CC in
1276 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1277 # Otherwise, we can use "CC=$(CC)".
1279 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1281 cc_set_by_configure="\$(CC)"
1282 quoted_cc_set_by_configure="\$(CC)"
1283 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1284 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1287 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1289 symbolic_link="cp -p"
1293 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1294 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1295 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1296 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1300 out_object_file=`basename $out_file .c`.o
1303 for f in $tm_file; do
1306 tm_file_list="${tm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1308 tm_file_list="${tm_file_list} \$(srcdir)/$f" ;;
1309 *) tm_file_list="${tm_file_list} \$(srcdir)/config/$f" ;;
1314 for f in $tm_p_file; do
1317 tm_p_file_list="${tm_p_file_list} $f" ;;
1318 *) tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" ;;
1323 for f in $host_xm_file; do
1326 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1328 host_xm_file_list="${host_xm_file_list} $f" ;;
1330 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1331 *) host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" ;;
1336 for f in $build_xm_file; do
1339 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/ansidecl.h" ;;
1340 auto-build.h | auto-host.h )
1341 build_xm_file_list="${build_xm_file_list} $f" ;;
1343 host_xm_file_list="${host_xm_file_list} \$(srcdir)/$f" ;;
1344 *) build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" ;;
1348 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1349 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1350 CROSS= AC_SUBST(CROSS)
1351 ALL=all.internal AC_SUBST(ALL)
1352 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1353 if test x$host != x$target
1355 CROSS="-DCROSS_COMPILE"
1357 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1358 case "$host","$target" in
1359 i?86-*-*,x86_64-*-* \
1360 | powerpc*-*-*,powerpc64*-*-*)
1361 CROSS="$CROSS -DNATIVE_CROSS" ;;
1365 # If this is a cross-compiler that does not
1366 # have its own set of headers then define
1369 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1370 # This prevents libgcc2 from containing any code which requires libc
1373 if { test x$host != x$target && test "x$with_headers" = x &&
1374 test "x$with_sysroot" = x ; } || test x$with_newlib = xyes ; then
1375 inhibit_libc=-Dinhibit_libc
1377 AC_SUBST(inhibit_libc)
1379 # When building gcc with a cross-compiler, we need to adjust things so
1380 # that the generator programs are still built with the native compiler.
1381 # Also, we cannot run fixincludes or fix-header.
1383 # These are the normal (build=host) settings:
1384 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1385 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1386 BUILD_CC='$(CC)' AC_SUBST(BUILD_CC)
1387 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1389 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1390 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1392 # And these apply if build != host.
1393 if test x$build != x$host
1396 BUILD_PREFIX_1=build-
1397 BUILD_CC='$(CC_FOR_BUILD)'
1398 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1404 # Expand extra_headers to include complete path.
1405 # This substitutes for lots of t-* files.
1407 if test "x$extra_headers" = x
1410 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1411 for file in $extra_headers;
1413 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1417 # Add a definition of USE_COLLECT2 if system wants one.
1418 case $use_collect2 in
1419 no) use_collect2= ;;
1422 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1423 xm_defines="${xm_defines} USE_COLLECT2"
1427 # If we have gas in the build tree, make a link to it.
1428 if test -f ../gas/Makefile; then
1429 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1432 # If we have nm and objdump in the build tree, make a link to them.
1433 if test -f ../binutils/Makefile; then
1434 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1435 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1438 # If we have ld in the build tree, make a link to it.
1439 if test -f ../ld/Makefile; then
1440 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1443 # Figure out what assembler we will be using.
1444 AC_MSG_CHECKING(what assembler to use)
1447 gcc_cv_gas_major_version=
1448 gcc_cv_gas_minor_version=
1449 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1450 if test -x "$DEFAULT_ASSEMBLER"; then
1451 gcc_cv_as="$DEFAULT_ASSEMBLER"
1452 elif test -x "$AS"; then
1454 elif test -x as$host_exeext; then
1455 # Build using assembler in the current directory.
1456 gcc_cv_as=./as$host_exeext
1457 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1458 && test -f ../gas/Makefile; then
1459 # Single tree build which includes gas.
1461 _gcc_COMPUTE_GAS_VERSION
1464 if test "x$gcc_cv_as" = x; then
1465 # Search the same directories that the installed compiler will
1466 # search. Else we may find the wrong assembler and lose. If we
1467 # do not find a suitable assembler binary, then try the user's
1470 # Also note we have to check MD_EXEC_PREFIX before checking the
1471 # user's path. Unfortunately, there is no good way to get at the
1472 # value of MD_EXEC_PREFIX here. So we do a brute force search
1473 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1474 # to be fixed as part of the make/configure rewrite too.
1476 if test "x$exec_prefix" = xNONE; then
1477 if test "x$prefix" = xNONE; then
1478 test_prefix=/usr/local
1483 test_prefix=$exec_prefix
1486 # If the loop below does not find an assembler, then use whatever
1487 # one we can find in the users's path.
1489 if test "x$program_prefix" != xNONE; then
1490 gcc_cv_as=${program_prefix}as$host_exeext
1492 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1495 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1496 $test_prefix/lib/gcc-lib/$target_alias \
1497 /usr/lib/gcc/$target_alias/$gcc_version \
1498 /usr/lib/gcc/$target_alias \
1499 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1500 $test_prefix/$target_alias/bin"
1502 if test x$host = x$target; then
1503 test_dirs="$test_dirs \
1508 /bsd43/usr/lib/cmplrs/cc \
1509 /usr/cross64/usr/bin \
1510 /usr/lib/cmplrs/cc \
1511 /sysv/usr/lib/cmplrs/cc \
1512 /svr4/usr/lib/cmplrs/cc \
1516 for dir in $test_dirs; do
1517 if test -x $dir/as$host_exeext; then
1518 gcc_cv_as=$dir/as$host_exeext
1523 case $in_tree_gas in
1525 AC_MSG_RESULT("newly built gas")
1528 AC_MSG_RESULT($gcc_cv_as)
1532 # Figure out what linker we will be using.
1533 AC_MSG_CHECKING(what linker to use)
1536 gcc_cv_gld_major_version=
1537 gcc_cv_gld_minor_version=
1538 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1539 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1540 if test -x "$DEFAULT_LINKER"; then
1541 gcc_cv_ld="$DEFAULT_LINKER"
1542 elif test -x "$LD"; then
1544 elif test -x ld$host_exeext; then
1545 # Build using linker in the current directory.
1546 gcc_cv_ld=./ld$host_exeext
1547 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1548 && test -f ../ld/Makefile; then
1549 # Single tree build which includes ld.
1551 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
1554 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1556 if test x$gcc_cv_gld_version != x; then
1561 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1562 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1566 if test "x$gcc_cv_ld" = x; then
1567 # Search the same directories that the installed compiler will
1568 # search. Else we may find the wrong linker and lose. If we
1569 # do not find a suitable linker binary, then try the user's
1572 # Also note we have to check MD_EXEC_PREFIX before checking the
1573 # user's path. Unfortunately, there is no good way to get at the
1574 # value of MD_EXEC_PREFIX here. So we do a brute force search
1575 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1576 # to be fixed as part of the make/configure rewrite too.
1578 if test "x$exec_prefix" = xNONE; then
1579 if test "x$prefix" = xNONE; then
1580 test_prefix=/usr/local
1585 test_prefix=$exec_prefix
1588 # If the loop below does not find an linker, then use whatever
1589 # one we can find in the users's path.
1591 if test "x$program_prefix" != xNONE; then
1592 gcc_cv_ld=${program_prefix}ld$host_exeext
1594 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1597 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1598 $test_prefix/lib/gcc-lib/$target_alias \
1599 /usr/lib/gcc/$target_alias/$gcc_version \
1600 /usr/lib/gcc/$target_alias \
1601 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1602 $test_prefix/$target_alias/bin"
1604 if test x$host = x$target; then
1605 test_dirs="$test_dirs \
1610 /bsd43/usr/lib/cmplrs/cc \
1611 /usr/cross64/usr/bin \
1612 /usr/lib/cmplrs/cc \
1613 /sysv/usr/lib/cmplrs/cc \
1614 /svr4/usr/lib/cmplrs/cc \
1618 for dir in $test_dirs; do
1619 if test -x $dir/ld$host_exeext; then
1620 gcc_cv_ld=$dir/ld$host_exeext
1627 AC_MSG_RESULT("newly built ld")
1630 AC_MSG_RESULT($gcc_cv_ld)
1634 # Figure out what nm we will be using.
1635 AC_MSG_CHECKING(what nm to use)
1636 if test -x nm$host_exeext; then
1637 gcc_cv_nm=./nm$host_exeext
1638 elif test "x$program_prefix" != xNONE; then
1639 gcc_cv_nm=${program_prefix}nm$host_exeext
1641 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1643 AC_MSG_RESULT($gcc_cv_nm)
1645 # Figure out what objdump we will be using.
1646 AC_MSG_CHECKING(what objdump to use)
1647 if test -x objdump$host_exeext; then
1648 gcc_cv_objdump=./objdump$host_exeext
1649 elif test "x$program_prefix" != xNONE; then
1650 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1652 gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
1654 AC_MSG_RESULT($gcc_cv_objdump)
1656 # Figure out what assembler alignment features are present.
1657 AC_MSG_CHECKING(assembler alignment features)
1658 gcc_cv_as_alignment_features=none
1659 if test $in_tree_gas = yes; then
1660 # Gas version 2.6 and later support for .balign and .p2align.
1661 gcc_GAS_VERSION_GTE_IFELSE(2,6,0,[
1662 gcc_cv_as_alignment_features=".balign and .p2align"
1663 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1665 # Gas version 2.8 and later support specifying the maximum
1666 # bytes to skip when using .p2align.
1667 gcc_GAS_VERSION_GTE_IFELSE(2,8,0,[
1668 gcc_cv_as_alignment_features=".p2align including maximum skip"
1669 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1671 elif test x$gcc_cv_as != x; then
1672 # Check if we have .balign and .p2align
1673 echo ".balign 4" > conftest.s
1674 echo ".p2align 2" >> conftest.s
1675 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1676 gcc_cv_as_alignment_features=".balign and .p2align"
1677 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1679 rm -f conftest.s conftest.o
1680 # Check if specifying the maximum bytes to skip when
1681 # using .p2align is supported.
1682 echo ".p2align 4,,7" > conftest.s
1683 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1684 gcc_cv_as_alignment_features=".p2align including maximum skip"
1685 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1687 rm -f conftest.s conftest.o
1689 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1691 AC_MSG_CHECKING(assembler subsection support)
1692 gcc_cv_as_subsections=no
1693 if test $in_tree_gas = yes ; then
1694 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
1695 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1696 gcc_cv_as_subsections="working .subsection -1"
1699 elif test x$gcc_cv_as != x; then
1700 # Check if we have .subsection
1701 echo ".subsection 1" > conftest.s
1702 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1703 gcc_cv_as_subsections=".subsection"
1704 if test x$gcc_cv_nm != x; then
1705 cat > conftest.s <<EOF
1706 conftest_label1: .word 0
1708 conftest_label2: .word 0
1711 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1712 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1713 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1714 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1717 gcc_cv_as_subsections="working .subsection -1"
1722 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1724 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1725 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1726 [Define if your assembler supports .subsection and .subsection -1 starts
1727 emitting at the beginning of your section.])
1729 AC_MSG_RESULT($gcc_cv_as_subsections)
1731 AC_MSG_CHECKING(assembler weak support)
1733 if test $in_tree_gas = yes ; then
1734 gcc_GAS_VERSION_GTE_IFELSE(2,2,0,[
1735 gcc_cv_as_weak="yes"
1737 elif test x$gcc_cv_as != x; then
1738 # Check if we have .weak
1739 echo " .weak foobar" > conftest.s
1740 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1741 gcc_cv_as_weak="yes"
1743 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1745 if test x"$gcc_cv_as_weak" = xyes; then
1746 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1748 AC_MSG_RESULT($gcc_cv_as_weak)
1750 AC_MSG_CHECKING(assembler hidden support)
1752 if test $in_tree_gas = yes ; then
1753 gcc_GAS_VERSION_GTE_IFELSE(2,12,1,[
1754 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1755 gcc_cv_as_hidden="yes"
1758 elif test x$gcc_cv_as != x; then
1759 # Check if we have .hidden
1760 echo " .hidden foobar" > conftest.s
1761 echo "foobar:" >> conftest.s
1762 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1763 gcc_cv_as_hidden="yes"
1765 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1767 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1768 # This is irritatingly difficult to feature test for. Look for
1769 # the date string after the version number.
1770 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1771 if echo "$ld_ver" | grep GNU > /dev/null; then
1773 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\([ ].*\|\)$,\1,p'`
1774 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1775 if test 0"$ld_date" -lt 20020404; then
1776 if test -n "$ld_date"; then
1777 # If there was date string, but was earlier than 2002-04-04, fail
1778 gcc_cv_as_hidden="no"
1779 elif test -z "$ld_vers"; then
1780 # If there was no date string nor ld version number, something is wrong
1781 gcc_cv_as_hidden="no"
1783 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1784 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1785 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1786 test -z "$ld_vers_patch" && ld_vers_patch=0
1787 if test "$ld_vers_major" -lt 2; then
1788 gcc_cv_as_hidden="no"
1789 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1790 gcc_cv_as_hidden="no"
1791 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1792 -a "$ld_vers_patch" -eq 0; then
1793 gcc_cv_as_hidden="no"
1800 if test x"$gcc_cv_as_hidden" = xyes; then
1801 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1802 [Define if your assembler supports .hidden.])
1804 AC_MSG_RESULT($gcc_cv_as_hidden)
1805 libgcc_visibility=$gcc_cv_as_hidden
1808 if test x"$gnu_ld_flag" = x"no"; then
1809 # Even if using gas with .hidden support, the resulting object files
1810 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1811 # N64 linkers, the problem is that the linker refuses to accept
1812 # -call_shared (passed by default to the linker) and -r (used to
1813 # link the object file generated without .hidden directives with
1814 # one that hides symbols), so we also lose.
1815 libgcc_visibility=no
1819 AC_SUBST(libgcc_visibility)
1821 AC_MSG_CHECKING(assembler leb128 support)
1823 if test $in_tree_gas = yes ; then
1824 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
1825 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1826 gcc_cv_as_leb128="yes"
1829 elif test x$gcc_cv_as != x; then
1830 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1831 cat > conftest.s <<EOF
1839 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1840 gcc_cv_as_leb128="yes"
1842 # GAS versions before 2.11 do not support uleb128,
1843 # despite appearing to.
1844 # ??? There exists an elf-specific test that will crash
1845 # the assembler. Perhaps it's better to figure out whether
1846 # arbitrary sections are supported and try the test.
1847 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1848 if echo "$as_ver" | grep GNU > /dev/null; then
1850 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1851 as_major=`echo $as_ver | sed 's/\..*//'`
1852 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1854 if test $as_major -eq 2 -a $as_minor -lt 11; then
1855 gcc_cv_as_leb128="no"
1859 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1861 if test x"$gcc_cv_as_leb128" = xyes; then
1862 AC_DEFINE(HAVE_AS_LEB128, 1,
1863 [Define if your assembler supports .uleb128.])
1865 AC_MSG_RESULT($gcc_cv_as_leb128)
1867 AC_MSG_CHECKING(assembler eh_frame optimization)
1868 gcc_cv_as_eh_frame=no
1869 if test $in_tree_gas = yes ; then
1870 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1871 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1872 gcc_cv_as_eh_frame="yes"
1875 elif test x$gcc_cv_as != x; then
1876 # Check if this is GAS.
1877 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1878 rm -f a.out 2> /dev/null
1879 if echo "$as_ver" | grep GNU > /dev/null; then
1880 # Versions up to and including 2.11.0 may mis-optimize
1881 # .eh_frame data. Try something.
1882 cat > conftest.s <<EOF
1889 .section .eh_frame,"aw",@progbits
1891 .4byte .LECIE1-.LSCIE1
1905 .4byte .LEFDE1-.LASFDE1
1907 .4byte .LASFDE1-__FRAME_BEGIN__
1916 cat > conftest.lit <<EOF
1917 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1918 0010 01000000 12000000 18000000 00000000 ................
1919 0020 08000000 04080000 0044 .........D
1921 cat > conftest.big <<EOF
1922 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1923 0010 00000001 00000012 00000018 00000000 ................
1924 0020 00000008 04000000 0844 .........D
1926 # If the assembler didn't choke, and we can objdump,
1927 # and we got the correct data, then succeed.
1928 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1929 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1930 | tail -3 > conftest.got \
1931 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1932 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1934 gcc_cv_as_eh_frame="yes"
1936 gcc_cv_as_eh_frame="bad"
1937 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1938 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1939 [Define if your assembler mis-optimizes .eh_frame data.])
1945 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1947 AC_MSG_CHECKING(assembler section merging support)
1948 gcc_cv_as_shf_merge=no
1949 if test $in_tree_gas = yes ; then
1950 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1951 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1952 gcc_cv_as_shf_merge=yes
1955 elif test x$gcc_cv_as != x; then
1956 # Check if we support SHF_MERGE sections
1957 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1958 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1959 gcc_cv_as_shf_merge=yes
1961 rm -f conftest.s conftest.o
1963 if test x"$gcc_cv_as_shf_merge" = xyes; then
1964 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1965 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1967 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1969 AC_MSG_CHECKING(assembler thread-local storage support)
1978 .section ".tdata","awT",@progbits
1981 ldq $27,__tls_get_addr($29) !literal!1
1982 lda $16,foo($29) !tlsgd!1
1983 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
1984 ldq $27,__tls_get_addr($29) !literal!2
1985 lda $16,foo($29) !tlsldm!2
1986 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
1987 ldq $1,foo($29) !gotdtprel
1988 ldah $2,foo($29) !dtprelhi
1989 lda $3,foo($2) !dtprello
1990 lda $4,foo($29) !dtprel
1991 ldq $1,foo($29) !gottprel
1992 ldah $2,foo($29) !tprelhi
1993 lda $3,foo($2) !tprello
1994 lda $4,foo($29) !tprel'
2001 .section ".tdata","awT",@progbits
2005 leal foo@TLSGD(,%ebx,1), %eax
2006 leal foo@TLSLDM(%ebx), %eax
2007 leal foo@DTPOFF(%eax), %edx
2008 movl foo@GOTTPOFF(%ebx), %eax
2009 subl foo@GOTTPOFF(%ebx), %eax
2010 addl foo@GOTNTPOFF(%ebx), %eax
2011 movl foo@INDNTPOFF, %eax
2012 movl $foo@TPOFF, %eax
2013 subl $foo@TPOFF, %eax
2014 leal foo@NTPOFF(%ecx), %eax'
2020 .section ".tdata","awT",@progbits
2024 leaq foo@TLSGD(%rip), %rdi
2025 leaq foo@TLSLD(%rip), %rdi
2026 leaq foo@DTPOFF(%rax), %rdx
2027 movq foo@GOTTPOFF(%rip), %rax
2028 movq $foo@TPOFF, %rax'
2034 .section ".tdata","awT",@progbits
2037 addl r16 = @ltoff(@dtpmod(foo#)), gp
2038 addl r17 = @ltoff(@dtprel(foo#)), gp
2039 addl r18 = @ltoff(@tprel(foo#)), gp
2040 addl r19 = @dtprel(foo#), gp
2041 adds r21 = @dtprel(foo#), r13
2042 movl r23 = @dtprel(foo#)
2043 addl r20 = @tprel(foo#), gp
2044 adds r22 = @tprel(foo#), r13
2045 movl r24 = @tprel(foo#)'
2051 .section ".tdata","awT",@progbits
2060 l %r1,foo@GOTNTPOFF(%r12)
2061 l %r1,0(%r1):tls_load:foo
2062 bas %r14,0(%r1,%r13):tls_gdcall:foo
2063 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2069 .section ".tdata","awT",@progbits
2077 lg %r1,foo@GOTNTPOFF(%r12)
2078 larl %r1,foo@INDNTPOFF
2079 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2080 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2085 if test -z "$tls_first_major"; then
2087 elif test $in_tree_gas = yes ; then
2088 gcc_GAS_VERSION_GTE_IFELSE($tls_first_major,$tls_first_minor,0,[
2091 elif test x$gcc_cv_as != x; then
2092 echo "$conftest_s" > conftest.s
2093 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
2097 rm -f conftest.s conftest.o
2099 if test "$gcc_cv_as_tls" = yes; then
2100 AC_DEFINE(HAVE_AS_TLS, 1,
2101 [Define if your assembler supports thread-local storage.])
2103 AC_MSG_RESULT($gcc_cv_as_tls)
2106 # All TARGET_ABI_OSF targets.
2107 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2108 AC_CACHE_CHECK([assembler supports explicit relocations],
2109 gcc_cv_as_explicit_relocs, [
2110 gcc_cv_as_explicit_relocs=unknown
2111 if test $in_tree_gas = yes ; then
2112 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2113 gcc_cv_as_explicit_relocs=yes
2115 elif test x$gcc_cv_as != x; then
2116 cat > conftest.s << 'EOF'
2119 extbl $3, $2, $3 !lituse_bytoff!1
2120 ldq $2, a($29) !literal!1
2121 ldq $4, b($29) !literal!2
2122 ldq_u $3, 0($2) !lituse_base!1
2123 ldq $27, f($29) !literal!5
2124 jsr $26, ($27), f !lituse_jsr!5
2125 ldah $29, 0($26) !gpdisp!3
2126 lda $0, c($29) !gprel
2127 ldah $1, d($29) !gprelhigh
2128 lda $1, d($1) !gprellow
2129 lda $29, 0($29) !gpdisp!3
2131 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2132 gcc_cv_as_explicit_relocs=yes
2134 gcc_cv_as_explicit_relocs=no
2136 rm -f conftest.s conftest.o
2139 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2140 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2141 [Define if your assembler supports explicit relocations.])
2145 AC_CACHE_CHECK([assembler .register pseudo-op support],
2146 gcc_cv_as_register_pseudo_op, [
2147 gcc_cv_as_register_pseudo_op=unknown
2148 if test x$gcc_cv_as != x; then
2149 # Check if we have .register
2150 echo ".register %g2, #scratch" > conftest.s
2151 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2152 gcc_cv_as_register_pseudo_op=yes
2154 gcc_cv_as_register_pseudo_op=no
2156 rm -f conftest.s conftest.o
2159 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2160 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2161 [Define if your assembler supports .register.])
2164 AC_CACHE_CHECK([assembler supports -relax],
2165 gcc_cv_as_relax_opt, [
2166 gcc_cv_as_relax_opt=unknown
2167 if test x$gcc_cv_as != x; then
2168 # Check if gas supports -relax
2169 echo ".text" > conftest.s
2170 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2171 gcc_cv_as_relax_opt=yes
2173 gcc_cv_as_relax_opt=no
2175 rm -f conftest.s conftest.o
2178 if test "x$gcc_cv_as_relax_opt" = xyes; then
2179 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2180 [Define if your assembler supports -relax option.])
2183 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2184 gcc_cv_as_sparc_ua_pcrel, [
2185 gcc_cv_as_sparc_ua_pcrel=unknown
2186 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2187 gcc_cv_as_sparc_ua_pcrel=no
2188 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2189 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2190 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2191 gcc_cv_as_sparc_ua_pcrel=yes
2193 rm -f conftest.s conftest.o conftest
2196 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2197 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2198 [Define if your assembler and linker support unaligned PC relative relocs.])
2201 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2202 gcc_cv_as_sparc_ua_pcrel_hidden, [
2203 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2204 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2205 if test x$gcc_cv_objdump != x; then
2206 gcc_cv_as_sparc_ua_pcrel_hidden=no
2207 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2208 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2209 echo "foo: .skip 4" >> conftest.s
2210 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2211 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2212 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2213 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2214 if $gcc_cv_objdump -R conftest 2> /dev/null \
2215 | grep 'DISP32' > /dev/null 2>&1; then
2218 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2222 rm -f conftest.s conftest.o conftest
2224 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2227 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2228 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2229 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2232 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2233 gcc_cv_as_offsetable_lo10, [
2234 gcc_cv_as_offsetable_lo10=unknown
2235 if test "x$gcc_cv_as" != x; then
2236 # Check if assembler has offsetable %lo()
2237 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2238 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2239 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2241 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2242 > /dev/null 2>&1; then
2243 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2244 gcc_cv_as_offsetable_lo10=no
2246 gcc_cv_as_offsetable_lo10=yes
2249 gcc_cv_as_offsetable_lo10=no
2251 rm -f conftest.s conftest.o conftest1.s conftest1.o
2254 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2255 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2256 [Define if your assembler supports offsetable %lo().])
2262 i[34567]86-*-* | x86_64-*-*)
2264 AC_MSG_CHECKING(assembler instructions)
2265 gcc_cv_as_instructions=
2266 if test $in_tree_gas = yes ; then
2267 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
2268 gcc_cv_as_instructions="filds fists"
2270 elif test x$gcc_cv_as != x; then
2271 set "filds fists" "filds mem; fists mem"
2274 echo "$2" > conftest.s
2275 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2276 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2280 rm -f conftest.s conftest.o
2282 if test x"$gcc_cv_as_instructions" != x; then
2283 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2285 AC_MSG_RESULT($gcc_cv_as_instructions)
2287 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2288 gcc_cv_as_gotoff_in_data=no
2289 if test $in_tree_gas = yes ; then
2290 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2291 gcc_cv_as_gotoff_in_data=yes
2293 elif test x$gcc_cv_as != x; then
2294 cat > conftest.s <<EOF
2301 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2302 gcc_cv_as_gotoff_in_data=yes
2305 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2306 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2307 [Define true if the assembler supports '.long foo@GOTOFF'.])
2308 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2312 AC_CACHE_CHECK([assembler supports ltoffx and ldxmov],
2313 gcc_cv_as_ltoffx_ldxmov_relocs, [
2314 gcc_cv_as_ltoffx_ldxmov_relocs=unknown
2315 if test $in_tree_gas = yes ; then
2316 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2317 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2319 elif test x$gcc_cv_as != x; then
2320 cat > conftest.s << 'EOF'
2323 addl r15 = @ltoffx(x#), gp
2325 ld8.mov r16 = [r15], x#
2328 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2329 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2331 gcc_cv_as_ltoffx_ldxmov_relocs=no
2333 rm -f conftest.s conftest.o
2336 if test "x$gcc_cv_as_ltoffx_ldxmov_relocs" = xyes; then
2337 AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2338 [Define if your assembler supports ltoffx and ldxmov relocations.])
2343 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2344 gcc_cv_as_dwarf2_debug_line=no
2345 # ??? Not all targets support dwarf2 debug_line, even within a version
2346 # of gas. Moreover, we need to emit a valid instruction to trigger any
2347 # info to the output file. So, as supported targets are added to gas 2.11,
2348 # add some instruction here to (also) show we expect this might work.
2349 # ??? Once 2.11 is released, probably need to add first known working
2350 # version to the per-target configury.
2352 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2353 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-*)
2360 if test $in_tree_gas = yes ; then
2361 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2362 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2363 && test x"$insn" != x ; then
2364 gcc_cv_as_dwarf2_debug_line="yes"
2367 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2368 echo ' .file 1 "conftest.s"' > conftest.s
2369 echo ' .loc 1 3 0' >> conftest.s
2370 echo " $insn" >> conftest.s
2371 # ??? This fails with non-gnu grep.
2372 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2373 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2374 # The .debug_line file table must be in the exact order that
2375 # we specified the files, since these indices are also used
2376 # by DW_AT_decl_file. Approximate this test by testing if
2377 # the assembler bitches if the same index is assigned twice.
2378 echo ' .file 1 "foo.s"' > conftest.s
2379 echo ' .file 1 "bar.s"' >> conftest.s
2380 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2382 gcc_cv_as_dwarf2_debug_line="no"
2384 gcc_cv_as_dwarf2_debug_line="yes"
2387 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2389 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2390 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2391 [Define if your assembler supports dwarf2 .file/.loc directives,
2392 and preserves file table indices exactly as given.])
2394 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2396 AC_MSG_CHECKING(assembler --gdwarf2 support)
2397 gcc_cv_as_gdwarf2_flag=no
2398 if test $in_tree_gas = yes ; then
2399 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2400 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2401 && test x"$insn" != x ; then
2402 gcc_cv_as_gdwarf2_flag="yes"
2405 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2406 echo '' > conftest.s
2407 # ??? This fails with non-gnu grep.
2408 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2410 gcc_cv_as_gdwarf2_flag="yes"
2412 rm -f conftest.s conftest.o
2414 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2415 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2416 [Define if your assembler supports the --gdwarf2 option.])
2418 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2420 AC_MSG_CHECKING(assembler --gstabs support)
2421 gcc_cv_as_gstabs_flag=no
2422 if test $in_tree_gas = yes ; then
2423 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2424 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2425 && test x"$insn" != x ; then
2426 gcc_cv_as_gstabs_flag="yes"
2429 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2430 echo '' > conftest.s
2431 # ??? This fails with non-gnu grep.
2432 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2433 gcc_cv_as_gstabs_flag="yes"
2435 rm -f conftest.s conftest.o
2437 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2438 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2439 [Define if your assembler supports the --gstabs option.])
2441 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2443 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2444 gcc_cv_ld_ro_rw_mix=unknown
2445 if test $in_tree_ld = yes ; then
2446 if test "$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
2447 gcc_cv_ld_ro_rw_mix=read-write
2449 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2450 echo '.section "myfoosect", "a"' > conftest1.s
2451 echo '.section "myfoosect", "aw"' > conftest2.s
2452 echo '.byte 1' >> conftest2.s
2453 echo '.section "myfoosect", "a"' > conftest3.s
2454 echo '.byte 0' >> conftest3.s
2455 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2456 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2457 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2458 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2459 conftest2.o conftest3.o; then
2460 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2461 | grep -A1 myfoosect`
2462 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2463 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2464 gcc_cv_ld_ro_rw_mix=read-only
2466 gcc_cv_ld_ro_rw_mix=read-write
2471 rm -f conftest.* conftest[123].*
2474 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2475 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2476 [Define if your linker links a mix of read-only
2477 and read-write sections into a read-write section.])
2479 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2481 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2482 gcc_cv_ld_eh_frame_hdr=no
2483 if test $in_tree_ld = yes ; then
2484 if test "$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
2485 gcc_cv_ld_eh_frame_hdr=yes
2487 elif test x$gcc_cv_ld != x; then
2488 # Check if linker supports --eh-frame-hdr option
2489 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2490 gcc_cv_ld_eh_frame_hdr=yes
2493 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2494 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2495 [Define if your linker supports --eh-frame-hdr option.])
2497 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2499 # Miscellaneous target-specific checks.
2502 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2503 gcc_cv_mips_libgloss_startup=no
2504 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2505 if test "x$exec_prefix" = xNONE; then
2506 if test "x$prefix" = xNONE; then
2507 test_prefix=/usr/local
2512 test_prefix=$exec_prefix
2514 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2516 if grep '^STARTUP' $f > /dev/null 2>&1; then
2517 gcc_cv_mips_libgloss_startup=yes
2521 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2522 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2523 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2525 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2529 if test x$with_sysroot = x && test x$host = x$target \
2530 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2531 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2534 # Figure out what language subdirectories are present.
2535 # Look if the user specified --enable-languages="..."; if not, use
2536 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2538 # NB: embedded tabs in this IF block -- do not untabify
2539 if test x"${enable_languages+set}" != xset; then
2540 if test x"${LANGUAGES+set}" = xset; then
2541 enable_languages="${LANGUAGES}"
2542 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2545 enable_languages=all
2548 if test x"${enable_languages}" = x \
2549 || test x"${enable_languages}" = xyes;
2551 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2554 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2556 # First scan to see if an enabled language requires some other language.
2557 # We assume that a given config-lang.in will list all the language
2558 # front ends it requires, even if some are required indirectly.
2559 for lang in ${srcdir}/*/config-lang.in ..
2564 # The odd quoting in the next line works around
2565 # an apparent bug in bash 1.12 on linux.
2567 ${srcdir}/[*]/config-lang.in)
2570 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2571 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2572 for other in $this_lang_requires
2574 case ,${enable_languages}, in
2580 enable_languages="$enable_languages,$other"
2589 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2592 for lang in ${srcdir}/*/config-lang.in ..
2596 # The odd quoting in the next line works around
2597 # an apparent bug in bash 1.12 on linux.
2599 ${srcdir}/[*]/config-lang.in) ;;
2601 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2602 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2603 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2604 if test "x$lang_alias" = x
2606 echo "$lang doesn't set \$language." 1>&2
2609 case ${build_by_default},${enable_languages}, in
2610 *,$lang_alias,*) add_this_lang=yes ;;
2611 no,*) add_this_lang=no ;;
2612 *,all,*) add_this_lang=yes ;;
2613 *) add_this_lang=no ;;
2615 found_languages="${found_languages} ${lang_alias}"
2616 if test x"${add_this_lang}" = xyes; then
2618 ${srcdir}/ada/config-lang.in)
2619 if test x$have_gnat = xyes ; then
2620 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2624 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2634 for expected_language in ${expected_languages} ..
2636 if test "${expected_language}" != ..; then
2637 missing_language="${expected_language}"
2638 if test "${expected_language}" = "c" \
2639 || test "${expected_language}" = "all"; then
2642 for found_language in ${found_languages} ..
2644 if test "${found_language}" != ..; then
2645 if test "${expected_language}" = "${found_language}"; then
2650 if test "x${missing_language}" != x; then
2651 missing_languages="${missing_languages} ${missing_language}"
2656 if test "x$missing_languages" != x; then
2658 The following requested languages were not found:${missing_languages}
2659 The following languages were available: c${found_languages}])
2662 # Make gthr-default.h if we have a thread file.
2664 if test $thread_file != single; then
2665 rm -f gthr-default.h
2666 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2667 gthread_flags=-DHAVE_GTHR_DEFAULT
2669 AC_SUBST(gthread_flags)
2671 # Find out what GC implementation we want, or may, use.
2673 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2680 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2685 echo "Using $GGC for garbage collection."
2687 # Use the system's zlib library.
2689 zlibinc="-I\$(srcdir)/../zlib"
2690 AC_ARG_WITH(system-zlib,
2691 [ --with-system-zlib use installed libz],
2698 dnl Very limited version of automake's enable-maintainer-mode
2700 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2701 dnl maintainer-mode is disabled by default
2702 AC_ARG_ENABLE(maintainer-mode,
2703 [ --enable-maintainer-mode
2704 enable make rules and dependencies not useful
2705 (and sometimes confusing) to the casual installer],
2706 maintainer_mode=$enableval,
2709 AC_MSG_RESULT($maintainer_mode)
2711 if test "$maintainer_mode" = "yes"; then
2718 # Make empty files to contain the specs and options for each language.
2719 # Then add #include lines to for a compiler that has specs and/or options.
2724 for subdir in . $subdirs
2726 if test -f $srcdir/$subdir/lang-specs.h; then
2727 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2729 if test -f $srcdir/$subdir/lang-options.h; then
2730 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2732 if test -f $srcdir/$subdir/$subdir-tree.def; then
2733 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2737 # These (without "all_") are set in each config-lang.in.
2738 # `language' must be a single word so is spelled singularly.
2743 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2744 # List of language makefile fragments.
2746 # Files for gengtype
2747 all_gtfiles="$target_gtfiles"
2748 # Files for gengtype with language
2749 all_gtfiles_files_langs=
2750 all_gtfiles_files_files=
2752 # Add the language fragments.
2753 # Languages are added via two mechanisms. Some information must be
2754 # recorded in makefile variables, these are defined in config-lang.in.
2755 # We accumulate them and plug them into the main Makefile.
2756 # The other mechanism is a set of hooks for each of the main targets
2757 # like `clean', `install', etc.
2759 language_fragments="Make-lang"
2760 language_hooks="Make-hooks"
2762 for s in .. $subdirs
2772 . ${srcdir}/$s/config-lang.in
2773 if test "x$language" = x
2775 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2778 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2779 if test -f ${srcdir}/$s/Makefile.in
2780 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2782 all_languages="$all_languages $language"
2783 if test "x$boot_language" = xyes
2785 all_boot_languages="$all_boot_languages $language"
2787 all_compilers="$all_compilers $compilers"
2788 all_stagestuff="$all_stagestuff $stagestuff"
2789 all_outputs="$all_outputs $outputs"
2790 all_gtfiles="$all_gtfiles $gtfiles"
2791 for f in .. $gtfiles
2795 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2796 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2802 # Pick up gtfiles for c
2805 . ${srcdir}/c-config-lang.in
2806 all_gtfiles="$all_gtfiles $gtfiles"
2807 for f in .. $gtfiles
2811 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2812 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2817 for language in .. $all_languages
2819 if test $language != ".."
2821 check_languages="$check_languages check-$language"
2825 # Since we can't use `::' targets, we link each language in
2826 # with a set of hooks, reached indirectly via lang.${target}.
2830 target_list="all.build all.cross start.encap rest.encap tags \
2831 info dvi generated-manpages \
2832 install-normal install-common install-info install-man \
2834 mostlyclean clean distclean extraclean maintainer-clean \
2835 stage1 stage2 stage3 stage4"
2836 for t in $target_list
2839 for lang in .. $all_languages
2841 if test $lang != ".."; then
2845 echo "lang.$t: $x" >> Make-hooks
2850 echo "dir ." > .gdbinit
2851 echo "dir ${srcdir}" >> .gdbinit
2852 if test x$gdb_needs_out_file_path = xyes
2854 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2856 if test "x$subdirs" != x; then
2859 echo "dir ${srcdir}/$s" >> .gdbinit
2862 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2864 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2865 # absolute path for gcc_tooldir based on inserting the number of up-directory
2866 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2867 # $(libsubdir)/@(unlibsubdir) based path.
2868 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2869 # make and thus we'd get different behavior depending on where we built the
2871 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2872 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2874 changequote(<<, >>)dnl
2875 # An explanation of the sed strings:
2876 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2877 # -e 's|/$||' match a trailing forward slash and eliminates it
2878 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2879 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2881 # (*) Note this pattern overwrites the first character of the string
2882 # with a forward slash if one is not already present. This is not a
2883 # problem because the exact names of the sub-directories concerned is
2884 # unimportant, just the number of them matters.
2886 # The practical upshot of these patterns is like this:
2888 # prefix exec_prefix result
2889 # ------ ----------- ------
2891 # /foo/ /foo/bar ../
2892 # /foo /foo/bar/ ../
2893 # /foo/ /foo/bar/ ../
2894 # /foo /foo/bar/ugg ../../
2897 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2898 changequote([, ])dnl
2900 AC_SUBST(gcc_tooldir)
2903 # Find a directory in which to install a shared libgcc.
2905 AC_ARG_ENABLE(version-specific-runtime-libs,
2906 [ --enable-version-specific-runtime-libs
2907 specify that runtime libraries should be
2908 installed in a compiler-specific directory])
2910 AC_ARG_WITH(slibdir,
2911 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2912 slibdir="$with_slibdir",
2913 if test "${enable_version_specific_runtime_libs+set}" = set; then
2914 slibdir='$(libsubdir)'
2915 elif test "$host" != "$target"; then
2916 slibdir='$(build_tooldir)/lib'
2922 objdir=`${PWDCMD-pwd}`
2925 # Process the language and host/target makefile fragments.
2926 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2928 # Substitute configuration variables
2931 AC_SUBST(all_boot_languages)
2932 AC_SUBST(all_compilers)
2933 AC_SUBST(all_gtfiles)
2934 AC_SUBST(all_gtfiles_files_langs)
2935 AC_SUBST(all_gtfiles_files_files)
2936 AC_SUBST(all_lang_makefiles)
2937 AC_SUBST(all_languages)
2938 AC_SUBST(all_stagestuff)
2939 AC_SUBST(build_exeext)
2940 AC_SUBST(build_install_headers_dir)
2941 AC_SUBST(build_xm_file_list)
2942 AC_SUBST(build_xm_file)
2943 AC_SUBST(build_xm_defines)
2944 AC_SUBST(check_languages)
2945 AC_SUBST(cc_set_by_configure)
2946 AC_SUBST(quoted_cc_set_by_configure)
2947 AC_SUBST(cpp_install_dir)
2948 AC_SUBST(dep_host_xmake_file)
2949 AC_SUBST(dep_tmake_file)
2950 AC_SUBST(extra_headers_list)
2951 AC_SUBST(extra_objs)
2952 AC_SUBST(extra_parts)
2953 AC_SUBST(extra_passes)
2954 AC_SUBST(extra_programs)
2955 AC_SUBST(float_h_file)
2956 AC_SUBST(gcc_config_arguments)
2957 AC_SUBST(gcc_gxx_include_dir)
2958 AC_SUBST(libstdcxx_incdir)
2959 AC_SUBST(gcc_version)
2960 AC_SUBST(gcc_version_full)
2961 AC_SUBST(gcc_version_trigger)
2962 AC_SUBST(host_exeext)
2963 AC_SUBST(host_extra_gcc_objs)
2964 AC_SUBST(host_xm_file_list)
2965 AC_SUBST(host_xm_file)
2966 AC_SUBST(host_xm_defines)
2967 AC_SUBST(out_host_hook_obj)
2969 AC_SUBST(lang_options_files)
2970 AC_SUBST(lang_specs_files)
2971 AC_SUBST(lang_tree_files)
2972 AC_SUBST(local_prefix)
2974 AC_SUBST(objc_boehm_gc)
2976 AC_SUBST(out_object_file)
2977 AC_SUBST(stage_prefix_set_by_configure)
2978 AC_SUBST(quoted_stage_prefix_set_by_configure)
2979 AC_SUBST(symbolic_link)
2980 AC_SUBST(thread_file)
2981 AC_SUBST(tm_file_list)
2983 AC_SUBST(tm_defines)
2984 AC_SUBST(tm_p_file_list)
2987 AC_SUBST(xm_defines)
2988 AC_SUBST(target_alias)
2989 AC_SUBST(c_target_objs)
2990 AC_SUBST(cxx_target_objs)
2991 AC_SUBST(target_cpu_default)
2993 AC_SUBST_FILE(target_overrides)
2994 AC_SUBST_FILE(host_overrides)
2995 AC_SUBST_FILE(language_fragments)
2996 AC_SUBST_FILE(language_hooks)
2998 # Echo that links are built
2999 if test x$host = x$target
3007 if test x$host != x$build
3009 str3=" on a $build system"
3012 if test "x$str2" != x || test "x$str3" != x
3017 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3019 if test "x$str2" != x || test "x$str3" != x
3021 echo " ${str2}${str3}." 1>&2
3024 # Truncate the target if necessary
3025 if test x$host_truncate_target != x; then
3026 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
3029 # Configure the subdirectories
3030 # AC_CONFIG_SUBDIRS($subdirs)
3032 # Create the Makefile
3033 # and configure language subdirectories
3034 AC_OUTPUT($all_outputs,
3036 case x$CONFIG_HEADERS in
3037 xauto-host.h:config.in)
3040 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3041 # bootstrapping and the installation procedure can still use
3042 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3043 # FLAGS_TO_PASS has been modified to solve the problem there.
3044 # This is virtually a duplicate of what happens in configure.lang; we do
3045 # an extra check to make sure this only happens if ln -s can be used.
3046 if test "$symbolic_link" = "ln -s"; then
3047 for d in .. ${subdirs} fixinc ; do
3048 if test $d != ..; then
3049 STARTDIR=`${PWDCMD-pwd}`
3051 for t in stage1 stage2 stage3 stage4 include
3054 $symbolic_link ../$t $t 2>/dev/null
3060 # Avoid having to add intl to our include paths.
3061 if test -f intl/libintl.h; then
3062 echo creating libintl.h
3063 echo '#include "intl/libintl.h"' >libintl.h
3067 symbolic_link='$symbolic_link'