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 $gcc_cv_glibc = yes; then
680 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
685 gcc_AC_HEADER_STDBOOL
688 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
689 fcntl.h unistd.h sys/file.h sys/time.h \
690 sys/resource.h sys/param.h sys/times.h sys/stat.h \
691 direct.h malloc.h langinfo.h ldfcn.h)
693 # Check for thread headers.
694 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
695 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
697 # These tests can't be done till we know if we have limits.h.
705 # Stage specific cflags for build.
711 stage1_cflags="-Wa,-J"
717 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
718 # sources; use -no-cpp-precomp to get to GNU cpp.
719 # Apple's GCC has bugs in designated initializer handling, so disable
721 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
724 AC_SUBST(stage1_cflags)
726 # These libraries may be used by collect2.
727 # We may need a special search path to get them linked.
728 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
730 for libs in '' -lld -lmld \
731 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
732 '-L/usr/lib/cmplrs/cc3.11 -lmld'
735 AC_TRY_LINK_FUNC(ldopen,
736 [gcc_cv_collect2_libs="$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 $gcc_cv_header_inttypes_h = yes; then
780 AC_DEFINE(HAVE_INTTYPES_H, 1,
781 [Define if you have a working <inttypes.h> header file.])
784 dnl Disabled until we have a complete test for buggy enum bitfields.
785 dnl gcc_AC_C_ENUM_BF_UNSIGNED
787 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
788 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
789 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo lstat \
792 AC_CHECK_TYPE(ssize_t, int)
794 # Try to determine the array type of the second argument of getgroups
795 # for the target system (int or gid_t).
797 if test "${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" ;;
1373 # If this is a cross-compiler that does not
1374 # have its own set of headers then define
1377 # If this is using newlib, then define inhibit_libc in LIBGCC2_CFLAGS.
1378 # This prevents libgcc2 from containing any code which requires libc
1381 if { test x$host != x$target && test "x$with_headers" = x &&
1382 test "x$with_sysroot" = x ; } || test x$with_newlib = xyes ; then
1383 inhibit_libc=-Dinhibit_libc
1385 AC_SUBST(inhibit_libc)
1387 # When building gcc with a cross-compiler, we need to adjust things so
1388 # that the generator programs are still built with the native compiler.
1389 # Also, we cannot run fixincludes or fix-header.
1391 # These are the normal (build=host) settings:
1392 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1393 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1394 BUILD_CC='$(CC)' AC_SUBST(BUILD_CC)
1395 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1397 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1398 STMP_FIXPROTO=stmp-fixproto AC_SUBST(STMP_FIXPROTO)
1400 # And these apply if build != host.
1401 if test x$build != x$host
1404 BUILD_PREFIX_1=build-
1405 BUILD_CC='$(CC_FOR_BUILD)'
1406 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD) $(XCFLAGS)'
1412 # Expand extra_headers to include complete path.
1413 # This substitutes for lots of t-* files.
1415 if test "x$extra_headers" = x
1418 # Prepend ${srcdir}/config/${cpu_type}/ to every entry in extra_headers.
1419 for file in $extra_headers;
1421 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1425 # Add a definition of USE_COLLECT2 if system wants one.
1426 case $use_collect2 in
1427 no) use_collect2= ;;
1430 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1431 xm_defines="${xm_defines} USE_COLLECT2"
1435 # If we have gas in the build tree, make a link to it.
1436 if test -f ../gas/Makefile; then
1437 rm -f as; $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1440 # If we have nm and objdump in the build tree, make a link to them.
1441 if test -f ../binutils/Makefile; then
1442 rm -f nm; $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1443 rm -f objdump; $symbolic_link ../binutils/objdump$host_exeext objdump$host_exeext 2>/dev/null
1446 # If we have ld in the build tree, make a link to it.
1447 if test -f ../ld/Makefile; then
1448 rm -f collect-ld; $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext 2>/dev/null
1451 # Identify the assembler which will work hand-in-glove with the newly
1452 # built GCC, so that we can examine its features. This is the assembler
1453 # which will be driven by the driver program.
1455 # If build != host, and we aren't building gas in-tree, we identify a
1456 # build->target assembler and hope that it will have the same features
1457 # as the host->target assembler we'll be using.
1458 AC_MSG_CHECKING(what assembler to use)
1461 gcc_cv_gas_major_version=
1462 gcc_cv_gas_minor_version=
1463 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1464 if test -x "$DEFAULT_ASSEMBLER"; then
1465 gcc_cv_as="$DEFAULT_ASSEMBLER"
1466 elif test -x "$AS"; then
1468 elif test -x as$host_exeext; then
1469 # Build using assembler in the current directory.
1470 gcc_cv_as=./as$host_exeext
1471 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1472 && test -f ../gas/Makefile; then
1473 # Single tree build which includes gas.
1475 _gcc_COMPUTE_GAS_VERSION
1478 if test "x$gcc_cv_as" = x; then
1479 # Search the same directories that the installed compiler will
1480 # search. Else we may find the wrong assembler and lose. If we
1481 # do not find a suitable assembler binary, then try the user's
1484 # Also note we have to check MD_EXEC_PREFIX before checking the
1485 # user's path. Unfortunately, there is no good way to get at the
1486 # value of MD_EXEC_PREFIX here. So we do a brute force search
1487 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1488 # to be fixed as part of the make/configure rewrite too.
1490 if test "x$exec_prefix" = xNONE; then
1491 if test "x$prefix" = xNONE; then
1492 test_prefix=/usr/local
1497 test_prefix=$exec_prefix
1500 # If the loop below does not find an assembler, then use whatever
1501 # one we can find in the users's path.
1503 if test "x$program_prefix" != xNONE; then
1504 gcc_cv_as=${program_prefix}as$host_exeext
1506 gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
1509 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1510 $test_prefix/lib/gcc-lib/$target_alias \
1511 /usr/lib/gcc/$target_alias/$gcc_version \
1512 /usr/lib/gcc/$target_alias \
1513 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1514 $test_prefix/$target_alias/bin"
1516 if test x$host = x$target; then
1517 test_dirs="$test_dirs \
1522 /bsd43/usr/lib/cmplrs/cc \
1523 /usr/cross64/usr/bin \
1524 /usr/lib/cmplrs/cc \
1525 /sysv/usr/lib/cmplrs/cc \
1526 /svr4/usr/lib/cmplrs/cc \
1530 for dir in $test_dirs; do
1531 if test -x $dir/as$host_exeext; then
1532 gcc_cv_as=$dir/as$host_exeext
1537 case $in_tree_gas in
1539 AC_MSG_RESULT("newly built gas")
1542 AC_MSG_RESULT($gcc_cv_as)
1546 # Identify the linker which will work hand-in-glove with the newly
1547 # built GCC, so that we can examine its features. This is the linker
1548 # which will be driven by the driver program.
1550 # If build != host, and we aren't building gas in-tree, we identify a
1551 # build->target linker and hope that it will have the same features
1552 # as the host->target linker we'll be using.
1553 AC_MSG_CHECKING(what linker to use)
1556 gcc_cv_gld_major_version=
1557 gcc_cv_gld_minor_version=
1558 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1559 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1560 if test -x "$DEFAULT_LINKER"; then
1561 gcc_cv_ld="$DEFAULT_LINKER"
1562 elif test -x "$LD"; then
1564 elif test -x ld$host_exeext; then
1565 # Build using linker in the current directory.
1566 gcc_cv_ld=./ld$host_exeext
1567 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1568 && test -f ../ld/Makefile; then
1569 # Single tree build which includes ld.
1571 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
1574 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1576 if test x$gcc_cv_gld_version != x; then
1581 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1582 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1586 if test "x$gcc_cv_ld" = x; then
1587 # Search the same directories that the installed compiler will
1588 # search. Else we may find the wrong linker and lose. If we
1589 # do not find a suitable linker binary, then try the user's
1592 # Also note we have to check MD_EXEC_PREFIX before checking the
1593 # user's path. Unfortunately, there is no good way to get at the
1594 # value of MD_EXEC_PREFIX here. So we do a brute force search
1595 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1596 # to be fixed as part of the make/configure rewrite too.
1598 if test "x$exec_prefix" = xNONE; then
1599 if test "x$prefix" = xNONE; then
1600 test_prefix=/usr/local
1605 test_prefix=$exec_prefix
1608 # If the loop below does not find an linker, then use whatever
1609 # one we can find in the users's path.
1611 if test "x$program_prefix" != xNONE; then
1612 gcc_cv_ld=${program_prefix}ld$host_exeext
1614 gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
1617 test_dirs="$test_prefix/lib/gcc-lib/$target_alias/$gcc_version \
1618 $test_prefix/lib/gcc-lib/$target_alias \
1619 /usr/lib/gcc/$target_alias/$gcc_version \
1620 /usr/lib/gcc/$target_alias \
1621 $test_prefix/$target_alias/bin/$target_alias/$gcc_version \
1622 $test_prefix/$target_alias/bin"
1624 if test x$host = x$target; then
1625 test_dirs="$test_dirs \
1630 /bsd43/usr/lib/cmplrs/cc \
1631 /usr/cross64/usr/bin \
1632 /usr/lib/cmplrs/cc \
1633 /sysv/usr/lib/cmplrs/cc \
1634 /svr4/usr/lib/cmplrs/cc \
1638 for dir in $test_dirs; do
1639 if test -x $dir/ld$host_exeext; then
1640 gcc_cv_ld=$dir/ld$host_exeext
1647 AC_MSG_RESULT("newly built ld")
1650 AC_MSG_RESULT($gcc_cv_ld)
1654 # Figure out what nm we will be using.
1655 AC_MSG_CHECKING(what nm to use)
1656 if test -x nm$host_exeext; then
1657 gcc_cv_nm=./nm$host_exeext
1658 elif test "x$program_prefix" != xNONE; then
1659 gcc_cv_nm=${program_prefix}nm$host_exeext
1661 gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
1663 AC_MSG_RESULT($gcc_cv_nm)
1665 # Figure out what objdump we will be using.
1666 AC_MSG_CHECKING(what objdump to use)
1667 if test -x objdump$host_exeext; then
1668 gcc_cv_objdump=./objdump$host_exeext
1669 elif test "x$program_prefix" != xNONE; then
1670 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1672 gcc_cv_objdump=`echo objdump | sed ${program_transform_name}`$host_exeext
1674 AC_MSG_RESULT($gcc_cv_objdump)
1676 # Figure out what assembler alignment features are present.
1677 AC_MSG_CHECKING(assembler alignment features)
1678 gcc_cv_as_alignment_features=none
1679 if test $in_tree_gas = yes; then
1680 # Gas version 2.6 and later support for .balign and .p2align.
1681 gcc_GAS_VERSION_GTE_IFELSE(2,6,0,[
1682 gcc_cv_as_alignment_features=".balign and .p2align"
1683 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1685 # Gas version 2.8 and later support specifying the maximum
1686 # bytes to skip when using .p2align.
1687 gcc_GAS_VERSION_GTE_IFELSE(2,8,0,[
1688 gcc_cv_as_alignment_features=".p2align including maximum skip"
1689 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1691 elif test x$gcc_cv_as != x; then
1692 # Check if we have .balign and .p2align
1693 echo ".balign 4" > conftest.s
1694 echo ".p2align 2" >> conftest.s
1695 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1696 gcc_cv_as_alignment_features=".balign and .p2align"
1697 AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN)
1699 rm -f conftest.s conftest.o
1700 # Check if specifying the maximum bytes to skip when
1701 # using .p2align is supported.
1702 echo ".p2align 4,,7" > conftest.s
1703 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1704 gcc_cv_as_alignment_features=".p2align including maximum skip"
1705 AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN)
1707 rm -f conftest.s conftest.o
1709 AC_MSG_RESULT($gcc_cv_as_alignment_features)
1711 AC_MSG_CHECKING(assembler subsection support)
1712 gcc_cv_as_subsections=no
1713 if test $in_tree_gas = yes ; then
1714 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
1715 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1716 gcc_cv_as_subsections="working .subsection -1"
1719 elif test x$gcc_cv_as != x; then
1720 # Check if we have .subsection
1721 echo ".subsection 1" > conftest.s
1722 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1723 gcc_cv_as_subsections=".subsection"
1724 if test x$gcc_cv_nm != x; then
1725 cat > conftest.s <<EOF
1726 conftest_label1: .word 0
1728 conftest_label2: .word 0
1731 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1732 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1733 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1734 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1; then
1737 gcc_cv_as_subsections="working .subsection -1"
1742 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1744 if test x"$gcc_cv_as_subsections" = x"working .subsection -1"; then
1745 AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1746 [Define if your assembler supports .subsection and .subsection -1 starts
1747 emitting at the beginning of your section.])
1749 AC_MSG_RESULT($gcc_cv_as_subsections)
1751 AC_MSG_CHECKING(assembler weak support)
1753 if test $in_tree_gas = yes ; then
1754 gcc_GAS_VERSION_GTE_IFELSE(2,2,0,[
1755 gcc_cv_as_weak="yes"
1757 elif test x$gcc_cv_as != x; then
1758 # Check if we have .weak
1759 echo " .weak foobar" > conftest.s
1760 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1761 gcc_cv_as_weak="yes"
1763 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1765 if test x"$gcc_cv_as_weak" = xyes; then
1766 AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])
1768 AC_MSG_RESULT($gcc_cv_as_weak)
1770 AC_MSG_CHECKING(assembler hidden support)
1772 if test $in_tree_gas = yes ; then
1773 gcc_GAS_VERSION_GTE_IFELSE(2,12,1,[
1774 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1775 gcc_cv_as_hidden="yes"
1778 elif test x$gcc_cv_as != x; then
1779 # Check if we have .hidden
1780 echo " .hidden foobar" > conftest.s
1781 echo "foobar:" >> conftest.s
1782 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1783 gcc_cv_as_hidden="yes"
1785 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1787 # GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1788 # This is irritatingly difficult to feature test for. Look for
1789 # the date string after the version number.
1790 ld_ver=`$gcc_cv_ld --version 2>/dev/null | head -1`
1791 if echo "$ld_ver" | grep GNU > /dev/null; then
1793 ld_vers=`echo $ld_ver | sed -n 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\(\|\.[0-9][0-9]*\)\)\([ ].*\|\)$,\1,p'`
1794 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
1795 if test 0"$ld_date" -lt 20020404; then
1796 if test -n "$ld_date"; then
1797 # If there was date string, but was earlier than 2002-04-04, fail
1798 gcc_cv_as_hidden="no"
1799 elif test -z "$ld_vers"; then
1800 # If there was no date string nor ld version number, something is wrong
1801 gcc_cv_as_hidden="no"
1803 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
1804 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
1805 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
1806 test -z "$ld_vers_patch" && ld_vers_patch=0
1807 if test "$ld_vers_major" -lt 2; then
1808 gcc_cv_as_hidden="no"
1809 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
1810 gcc_cv_as_hidden="no"
1811 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 \
1812 -a "$ld_vers_patch" -eq 0; then
1813 gcc_cv_as_hidden="no"
1820 if test x"$gcc_cv_as_hidden" = xyes; then
1821 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
1822 [Define if your assembler supports .hidden.])
1824 AC_MSG_RESULT($gcc_cv_as_hidden)
1825 libgcc_visibility=$gcc_cv_as_hidden
1828 if test x"$gnu_ld_flag" = x"no"; then
1829 # Even if using gas with .hidden support, the resulting object files
1830 # cannot be linked with the IRIX 6 O32 linker. With the N32 and
1831 # N64 linkers, the problem is that the linker refuses to accept
1832 # -call_shared (passed by default to the linker) and -r (used to
1833 # link the object file generated without .hidden directives with
1834 # one that hides symbols), so we also lose.
1835 libgcc_visibility=no
1839 AC_SUBST(libgcc_visibility)
1841 AC_MSG_CHECKING(assembler leb128 support)
1843 if test $in_tree_gas = yes ; then
1844 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
1845 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1846 gcc_cv_as_leb128="yes"
1849 elif test x$gcc_cv_as != x; then
1850 # Check if we have .[us]leb128, and support symbol arithmetic with it.
1851 cat > conftest.s <<EOF
1859 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
1860 gcc_cv_as_leb128="yes"
1862 # GAS versions before 2.11 do not support uleb128,
1863 # despite appearing to.
1864 # ??? There exists an elf-specific test that will crash
1865 # the assembler. Perhaps it's better to figure out whether
1866 # arbitrary sections are supported and try the test.
1867 as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
1868 if echo "$as_ver" | grep GNU > /dev/null; then
1870 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
1871 as_major=`echo $as_ver | sed 's/\..*//'`
1872 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
1874 if test $as_major -eq 2 -a $as_minor -lt 11; then
1875 gcc_cv_as_leb128="no"
1879 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
1881 if test x"$gcc_cv_as_leb128" = xyes; then
1882 AC_DEFINE(HAVE_AS_LEB128, 1,
1883 [Define if your assembler supports .uleb128.])
1885 AC_MSG_RESULT($gcc_cv_as_leb128)
1887 AC_MSG_CHECKING(assembler eh_frame optimization)
1888 gcc_cv_as_eh_frame=no
1889 if test $in_tree_gas = yes ; then
1890 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1891 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1892 gcc_cv_as_eh_frame="yes"
1895 elif test x$gcc_cv_as != x; then
1896 # Check if this is GAS.
1897 as_ver=`$gcc_cv_as --version < /dev/null 2> /dev/null | head -1`
1898 rm -f a.out 2> /dev/null
1899 if echo "$as_ver" | grep GNU > /dev/null; then
1900 # Versions up to and including 2.11.0 may mis-optimize
1901 # .eh_frame data. Try something.
1902 cat > conftest.s <<EOF
1909 .section .eh_frame,"aw",@progbits
1911 .4byte .LECIE1-.LSCIE1
1925 .4byte .LEFDE1-.LASFDE1
1927 .4byte .LASFDE1-__FRAME_BEGIN__
1936 cat > conftest.lit <<EOF
1937 0000 10000000 00000000 017a0001 781a0004 .........z..x...
1938 0010 01000000 12000000 18000000 00000000 ................
1939 0020 08000000 04080000 0044 .........D
1941 cat > conftest.big <<EOF
1942 0000 00000010 00000000 017a0001 781a0004 .........z..x...
1943 0010 00000001 00000012 00000018 00000000 ................
1944 0020 00000008 04000000 0844 .........D
1946 # If the assembler didn't choke, and we can objdump,
1947 # and we got the correct data, then succeed.
1948 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
1949 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
1950 | tail -3 > conftest.got \
1951 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
1952 || cmp conftest.big conftest.got > /dev/null 2>&1; }
1954 gcc_cv_as_eh_frame="yes"
1956 gcc_cv_as_eh_frame="bad"
1957 if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
1958 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
1959 [Define if your assembler mis-optimizes .eh_frame data.])
1965 AC_MSG_RESULT($gcc_cv_as_eh_frame)
1967 AC_MSG_CHECKING(assembler section merging support)
1968 gcc_cv_as_shf_merge=no
1969 if test $in_tree_gas = yes ; then
1970 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
1971 if grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
1972 gcc_cv_as_shf_merge=yes
1975 elif test x$gcc_cv_as != x; then
1976 # Check if we support SHF_MERGE sections
1977 echo '.section .rodata.str, "aMS", @progbits, 1' > conftest.s
1978 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1; then
1979 gcc_cv_as_shf_merge=yes
1981 rm -f conftest.s conftest.o
1983 if test x"$gcc_cv_as_shf_merge" = xyes; then
1984 AC_DEFINE(HAVE_GAS_SHF_MERGE, 1,
1985 [Define if your assembler supports marking sections with SHF_MERGE flag.])
1987 AC_MSG_RESULT($gcc_cv_as_shf_merge)
1989 AC_MSG_CHECKING(assembler thread-local storage support)
1998 .section ".tdata","awT",@progbits
2001 ldq $27,__tls_get_addr($29) !literal!1
2002 lda $16,foo($29) !tlsgd!1
2003 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2004 ldq $27,__tls_get_addr($29) !literal!2
2005 lda $16,foo($29) !tlsldm!2
2006 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2007 ldq $1,foo($29) !gotdtprel
2008 ldah $2,foo($29) !dtprelhi
2009 lda $3,foo($2) !dtprello
2010 lda $4,foo($29) !dtprel
2011 ldq $1,foo($29) !gottprel
2012 ldah $2,foo($29) !tprelhi
2013 lda $3,foo($2) !tprello
2014 lda $4,foo($29) !tprel'
2021 .section ".tdata","awT",@progbits
2025 leal foo@TLSGD(,%ebx,1), %eax
2026 leal foo@TLSLDM(%ebx), %eax
2027 leal foo@DTPOFF(%eax), %edx
2028 movl foo@GOTTPOFF(%ebx), %eax
2029 subl foo@GOTTPOFF(%ebx), %eax
2030 addl foo@GOTNTPOFF(%ebx), %eax
2031 movl foo@INDNTPOFF, %eax
2032 movl $foo@TPOFF, %eax
2033 subl $foo@TPOFF, %eax
2034 leal foo@NTPOFF(%ecx), %eax'
2040 .section ".tdata","awT",@progbits
2044 leaq foo@TLSGD(%rip), %rdi
2045 leaq foo@TLSLD(%rip), %rdi
2046 leaq foo@DTPOFF(%rax), %rdx
2047 movq foo@GOTTPOFF(%rip), %rax
2048 movq $foo@TPOFF, %rax'
2054 .section ".tdata","awT",@progbits
2057 addl r16 = @ltoff(@dtpmod(foo#)), gp
2058 addl r17 = @ltoff(@dtprel(foo#)), gp
2059 addl r18 = @ltoff(@tprel(foo#)), gp
2060 addl r19 = @dtprel(foo#), gp
2061 adds r21 = @dtprel(foo#), r13
2062 movl r23 = @dtprel(foo#)
2063 addl r20 = @tprel(foo#), gp
2064 adds r22 = @tprel(foo#), r13
2065 movl r24 = @tprel(foo#)'
2071 .section ".tdata","awT",@progbits
2080 l %r1,foo@GOTNTPOFF(%r12)
2081 l %r1,0(%r1):tls_load:foo
2082 bas %r14,0(%r1,%r13):tls_gdcall:foo
2083 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2089 .section ".tdata","awT",@progbits
2097 lg %r1,foo@GOTNTPOFF(%r12)
2098 larl %r1,foo@INDNTPOFF
2099 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2100 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2105 if test -z "$tls_first_major"; then
2107 elif test $in_tree_gas = yes ; then
2108 gcc_GAS_VERSION_GTE_IFELSE($tls_first_major,$tls_first_minor,0,[
2111 elif test x$gcc_cv_as != x; then
2112 echo "$conftest_s" > conftest.s
2113 if $gcc_cv_as --fatal-warnings -o conftest.o conftest.s > /dev/null 2>&1
2117 rm -f conftest.s conftest.o
2119 if test "$gcc_cv_as_tls" = yes; then
2120 AC_DEFINE(HAVE_AS_TLS, 1,
2121 [Define if your assembler supports thread-local storage.])
2123 AC_MSG_RESULT($gcc_cv_as_tls)
2126 # All TARGET_ABI_OSF targets.
2127 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2128 AC_CACHE_CHECK([assembler supports explicit relocations],
2129 gcc_cv_as_explicit_relocs, [
2130 gcc_cv_as_explicit_relocs=unknown
2131 if test $in_tree_gas = yes ; then
2132 gcc_GAS_VERSION_GTE_IFELSE(2,12,0,[
2133 gcc_cv_as_explicit_relocs=yes
2135 elif test x$gcc_cv_as != x; then
2136 cat > conftest.s << 'EOF'
2139 extbl $3, $2, $3 !lituse_bytoff!1
2140 ldq $2, a($29) !literal!1
2141 ldq $4, b($29) !literal!2
2142 ldq_u $3, 0($2) !lituse_base!1
2143 ldq $27, f($29) !literal!5
2144 jsr $26, ($27), f !lituse_jsr!5
2145 ldah $29, 0($26) !gpdisp!3
2146 lda $0, c($29) !gprel
2147 ldah $1, d($29) !gprelhigh
2148 lda $1, d($1) !gprellow
2149 lda $29, 0($29) !gpdisp!3
2151 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2152 gcc_cv_as_explicit_relocs=yes
2154 gcc_cv_as_explicit_relocs=no
2156 rm -f conftest.s conftest.o
2159 if test "x$gcc_cv_as_explicit_relocs" = xyes; then
2160 AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2161 [Define if your assembler supports explicit relocations.])
2165 AC_CACHE_CHECK([assembler .register pseudo-op support],
2166 gcc_cv_as_register_pseudo_op, [
2167 gcc_cv_as_register_pseudo_op=unknown
2168 if test x$gcc_cv_as != x; then
2169 # Check if we have .register
2170 echo ".register %g2, #scratch" > conftest.s
2171 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2172 gcc_cv_as_register_pseudo_op=yes
2174 gcc_cv_as_register_pseudo_op=no
2176 rm -f conftest.s conftest.o
2179 if test "x$gcc_cv_as_register_pseudo_op" = xyes; then
2180 AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2181 [Define if your assembler supports .register.])
2184 AC_CACHE_CHECK([assembler supports -relax],
2185 gcc_cv_as_relax_opt, [
2186 gcc_cv_as_relax_opt=unknown
2187 if test x$gcc_cv_as != x; then
2188 # Check if gas supports -relax
2189 echo ".text" > conftest.s
2190 if $gcc_cv_as -relax -o conftest.o conftest.s > /dev/null 2>&1; then
2191 gcc_cv_as_relax_opt=yes
2193 gcc_cv_as_relax_opt=no
2195 rm -f conftest.s conftest.o
2198 if test "x$gcc_cv_as_relax_opt" = xyes; then
2199 AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2200 [Define if your assembler supports -relax option.])
2203 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
2204 gcc_cv_as_sparc_ua_pcrel, [
2205 gcc_cv_as_sparc_ua_pcrel=unknown
2206 if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
2207 gcc_cv_as_sparc_ua_pcrel=no
2208 echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
2209 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2210 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2211 gcc_cv_as_sparc_ua_pcrel=yes
2213 rm -f conftest.s conftest.o conftest
2216 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2217 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2218 [Define if your assembler and linker support unaligned PC relative relocs.])
2221 AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
2222 gcc_cv_as_sparc_ua_pcrel_hidden, [
2223 if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
2224 gcc_cv_as_sparc_ua_pcrel_hidden=unknown
2225 if test x$gcc_cv_objdump != x; then
2226 gcc_cv_as_sparc_ua_pcrel_hidden=no
2227 echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
2228 echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
2229 echo "foo: .skip 4" >> conftest.s
2230 if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
2231 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2232 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2233 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2234 if $gcc_cv_objdump -R conftest 2> /dev/null \
2235 | grep 'DISP32' > /dev/null 2>&1; then
2238 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2242 rm -f conftest.s conftest.o conftest
2244 gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
2247 if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
2248 AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2249 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
2252 AC_CACHE_CHECK([for assembler offsetable %lo() support],
2253 gcc_cv_as_offsetable_lo10, [
2254 gcc_cv_as_offsetable_lo10=unknown
2255 if test "x$gcc_cv_as" != x; then
2256 # Check if assembler has offsetable %lo()
2257 echo "or %g1, %lo(ab) + 12, %g1" > conftest.s
2258 echo "or %g1, %lo(ab + 12), %g1" > conftest1.s
2259 if $gcc_cv_as -xarch=v9 -o conftest.o conftest.s \
2261 $gcc_cv_as -xarch=v9 -o conftest1.o conftest1.s \
2262 > /dev/null 2>&1; then
2263 if cmp conftest.o conftest1.o > /dev/null 2>&1; then
2264 gcc_cv_as_offsetable_lo10=no
2266 gcc_cv_as_offsetable_lo10=yes
2269 gcc_cv_as_offsetable_lo10=no
2271 rm -f conftest.s conftest.o conftest1.s conftest1.o
2274 if test "x$gcc_cv_as_offsetable_lo10" = xyes; then
2275 AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2276 [Define if your assembler supports offsetable %lo().])
2282 i[34567]86-*-* | x86_64-*-*)
2284 AC_MSG_CHECKING(assembler instructions)
2285 gcc_cv_as_instructions=
2286 if test $in_tree_gas = yes ; then
2287 gcc_GAS_VERSION_GTE_IFELSE(2,9,0,[
2288 gcc_cv_as_instructions="filds fists"
2290 elif test x$gcc_cv_as != x; then
2291 set "filds fists" "filds mem; fists mem"
2294 echo "$2" > conftest.s
2295 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2296 gcc_cv_as_instructions=${gcc_cv_as_instructions}$1" "
2300 rm -f conftest.s conftest.o
2302 if test x"$gcc_cv_as_instructions" != x; then
2303 AC_DEFINE_UNQUOTED(HAVE_GAS_`echo "$gcc_cv_as_instructions" | sed -e 's/ $//' | tr '[a-z ]' '[A-Z_]'`)
2305 AC_MSG_RESULT($gcc_cv_as_instructions)
2307 AC_MSG_CHECKING(assembler GOTOFF in data directives)
2308 gcc_cv_as_gotoff_in_data=no
2309 if test $in_tree_gas = yes ; then
2310 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2311 gcc_cv_as_gotoff_in_data=yes
2313 elif test x$gcc_cv_as != x; then
2314 cat > conftest.s <<EOF
2321 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2322 gcc_cv_as_gotoff_in_data=yes
2325 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2326 [`if test $gcc_cv_as_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2327 [Define true if the assembler supports '.long foo@GOTOFF'.])
2328 AC_MSG_RESULT($gcc_cv_as_gotoff_in_data)
2332 AC_CACHE_CHECK([assembler supports ltoffx and ldxmov],
2333 gcc_cv_as_ltoffx_ldxmov_relocs, [
2334 gcc_cv_as_ltoffx_ldxmov_relocs=unknown
2335 if test $in_tree_gas = yes ; then
2336 gcc_GAS_VERSION_GTE_IFELSE(2,14,0,[
2337 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2339 elif test x$gcc_cv_as != x; then
2340 cat > conftest.s << 'EOF'
2343 addl r15 = @ltoffx(x#), gp
2345 ld8.mov r16 = [r15], x#
2348 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
2349 gcc_cv_as_ltoffx_ldxmov_relocs=yes
2351 gcc_cv_as_ltoffx_ldxmov_relocs=no
2353 rm -f conftest.s conftest.o
2356 if test "x$gcc_cv_as_ltoffx_ldxmov_relocs" = xyes; then
2357 AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2358 [Define if your assembler supports ltoffx and ldxmov relocations.])
2363 AC_MSG_CHECKING(assembler dwarf2 debug_line support)
2364 gcc_cv_as_dwarf2_debug_line=no
2365 # ??? Not all targets support dwarf2 debug_line, even within a version
2366 # of gas. Moreover, we need to emit a valid instruction to trigger any
2367 # info to the output file. So, as supported targets are added to gas 2.11,
2368 # add some instruction here to (also) show we expect this might work.
2369 # ??? Once 2.11 is released, probably need to add first known working
2370 # version to the per-target configury.
2372 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2373 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-*)
2380 if test $in_tree_gas = yes ; then
2381 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2382 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2383 && test x"$insn" != x ; then
2384 gcc_cv_as_dwarf2_debug_line="yes"
2387 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2388 echo ' .file 1 "conftest.s"' > conftest.s
2389 echo ' .loc 1 3 0' >> conftest.s
2390 echo " $insn" >> conftest.s
2391 # ??? This fails with non-gnu grep.
2392 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
2393 && grep debug_line conftest.o > /dev/null 2>&1 ; then
2394 # The .debug_line file table must be in the exact order that
2395 # we specified the files, since these indices are also used
2396 # by DW_AT_decl_file. Approximate this test by testing if
2397 # the assembler bitches if the same index is assigned twice.
2398 echo ' .file 1 "foo.s"' > conftest.s
2399 echo ' .file 1 "bar.s"' >> conftest.s
2400 if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1
2402 gcc_cv_as_dwarf2_debug_line="no"
2404 gcc_cv_as_dwarf2_debug_line="yes"
2407 rm -f conftest.s conftest.o conftest.nm1 conftest.nm2
2409 if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then
2410 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2411 [Define if your assembler supports dwarf2 .file/.loc directives,
2412 and preserves file table indices exactly as given.])
2414 AC_MSG_RESULT($gcc_cv_as_dwarf2_debug_line)
2416 AC_MSG_CHECKING(assembler --gdwarf2 support)
2417 gcc_cv_as_gdwarf2_flag=no
2418 if test $in_tree_gas = yes ; then
2419 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2420 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2421 && test x"$insn" != x ; then
2422 gcc_cv_as_gdwarf2_flag="yes"
2425 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2426 echo '' > conftest.s
2427 # ??? This fails with non-gnu grep.
2428 if $gcc_cv_as --gdwarf2 -o conftest.o conftest.s > /dev/null 2>&1
2430 gcc_cv_as_gdwarf2_flag="yes"
2432 rm -f conftest.s conftest.o
2434 if test x"$gcc_cv_as_gdwarf2_flag" = xyes; then
2435 AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2436 [Define if your assembler supports the --gdwarf2 option.])
2438 AC_MSG_RESULT($gcc_cv_as_gdwarf2_flag)
2440 AC_MSG_CHECKING(assembler --gstabs support)
2441 gcc_cv_as_gstabs_flag=no
2442 if test $in_tree_gas = yes ; then
2443 gcc_GAS_VERSION_GTE_IFELSE(2,11,0,[
2444 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
2445 && test x"$insn" != x ; then
2446 gcc_cv_as_gstabs_flag="yes"
2449 elif test x$gcc_cv_as != x -a x"$insn" != x ; then
2450 echo '' > conftest.s
2451 # ??? This fails with non-gnu grep.
2452 if $gcc_cv_as --gstabs -o conftest.o conftest.s > /dev/null 2>&1 ; then
2453 gcc_cv_as_gstabs_flag="yes"
2455 rm -f conftest.s conftest.o
2457 if test x"$gcc_cv_as_gstabs_flag" = xyes; then
2458 AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2459 [Define if your assembler supports the --gstabs option.])
2461 AC_MSG_RESULT($gcc_cv_as_gstabs_flag)
2463 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2464 gcc_cv_ld_ro_rw_mix=unknown
2465 if test $in_tree_ld = yes ; then
2466 if test "$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
2467 gcc_cv_ld_ro_rw_mix=read-write
2469 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2470 echo '.section "myfoosect", "a"' > conftest1.s
2471 echo '.section "myfoosect", "aw"' > conftest2.s
2472 echo '.byte 1' >> conftest2.s
2473 echo '.section "myfoosect", "a"' > conftest3.s
2474 echo '.byte 0' >> conftest3.s
2475 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2476 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2477 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2478 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2479 conftest2.o conftest3.o; then
2480 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2481 | grep -A1 myfoosect`
2482 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2483 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2484 gcc_cv_ld_ro_rw_mix=read-only
2486 gcc_cv_ld_ro_rw_mix=read-write
2491 rm -f conftest.* conftest[123].*
2494 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2495 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2496 [Define if your linker links a mix of read-only
2497 and read-write sections into a read-write section.])
2499 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2501 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2502 gcc_cv_ld_eh_frame_hdr=no
2503 if test $in_tree_ld = yes ; then
2504 if test "$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
2505 gcc_cv_ld_eh_frame_hdr=yes
2507 elif test x$gcc_cv_ld != x; then
2508 # Check if linker supports --eh-frame-hdr option
2509 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2510 gcc_cv_ld_eh_frame_hdr=yes
2513 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2514 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2515 [Define if your linker supports --eh-frame-hdr option.])
2517 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2519 # Miscellaneous target-specific checks.
2522 AC_MSG_CHECKING(whether libgloss uses STARTUP directives consistently)
2523 gcc_cv_mips_libgloss_startup=no
2524 gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
2525 if test "x$exec_prefix" = xNONE; then
2526 if test "x$prefix" = xNONE; then
2527 test_prefix=/usr/local
2532 test_prefix=$exec_prefix
2534 for f in $gcc_cv_libgloss_srcdir/mips/idt.ld $test_prefix/$target_alias/lib/idt.ld
2536 if grep '^STARTUP' $f > /dev/null 2>&1; then
2537 gcc_cv_mips_libgloss_startup=yes
2541 if test x"$gcc_cv_mips_libgloss_startup" = xyes; then
2542 AC_DEFINE(HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES, 1,
2543 [Define if your MIPS libgloss linker scripts consistently include STARTUP directives.])
2545 AC_MSG_RESULT($gcc_cv_mips_libgloss_startup)
2549 if test x$with_sysroot = x && test x$host = x$target \
2550 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2551 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include")
2554 # Figure out what language subdirectories are present.
2555 # Look if the user specified --enable-languages="..."; if not, use
2556 # the environment variable $LANGUAGES if defined. $LANGUAGES might
2558 # NB: embedded tabs in this IF block -- do not untabify
2559 if test x"${enable_languages+set}" != xset; then
2560 if test x"${LANGUAGES+set}" = xset; then
2561 enable_languages="${LANGUAGES}"
2562 AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
2565 enable_languages=all
2568 if test x"${enable_languages}" = x \
2569 || test x"${enable_languages}" = xyes;
2571 AC_MSG_ERROR([--enable-languages needs at least one language argument])
2574 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
2576 # First scan to see if an enabled language requires some other language.
2577 # We assume that a given config-lang.in will list all the language
2578 # front ends it requires, even if some are required indirectly.
2579 for lang in ${srcdir}/*/config-lang.in ..
2584 # The odd quoting in the next line works around
2585 # an apparent bug in bash 1.12 on linux.
2587 ${srcdir}/[*]/config-lang.in)
2590 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2591 this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
2592 for other in $this_lang_requires
2594 case ,${enable_languages}, in
2600 enable_languages="$enable_languages,$other"
2609 expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
2612 for lang in ${srcdir}/*/config-lang.in ..
2616 # The odd quoting in the next line works around
2617 # an apparent bug in bash 1.12 on linux.
2619 ${srcdir}/[*]/config-lang.in) ;;
2621 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
2622 this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
2623 build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
2624 if test "x$lang_alias" = x
2626 echo "$lang doesn't set \$language." 1>&2
2629 case ${build_by_default},${enable_languages}, in
2630 *,$lang_alias,*) add_this_lang=yes ;;
2631 no,*) add_this_lang=no ;;
2632 *,all,*) add_this_lang=yes ;;
2633 *) add_this_lang=no ;;
2635 found_languages="${found_languages} ${lang_alias}"
2636 if test x"${add_this_lang}" = xyes; then
2638 ${srcdir}/ada/config-lang.in)
2639 if test x$have_gnat = xyes ; then
2640 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2644 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
2654 for expected_language in ${expected_languages} ..
2656 if test "${expected_language}" != ..; then
2657 missing_language="${expected_language}"
2658 if test "${expected_language}" = "c" \
2659 || test "${expected_language}" = "all"; then
2662 for found_language in ${found_languages} ..
2664 if test "${found_language}" != ..; then
2665 if test "${expected_language}" = "${found_language}"; then
2670 if test "x${missing_language}" != x; then
2671 missing_languages="${missing_languages} ${missing_language}"
2676 if test "x$missing_languages" != x; then
2678 The following requested languages were not found:${missing_languages}
2679 The following languages were available: c${found_languages}])
2682 # Make gthr-default.h if we have a thread file.
2684 if test $thread_file != single; then
2685 rm -f gthr-default.h
2686 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
2687 gthread_flags=-DHAVE_GTHR_DEFAULT
2689 AC_SUBST(gthread_flags)
2691 # Find out what GC implementation we want, or may, use.
2693 [ --with-gc={simple,page} choose the garbage collection mechanism to use
2700 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2705 echo "Using $GGC for garbage collection."
2707 # Use the system's zlib library.
2709 zlibinc="-I\$(srcdir)/../zlib"
2710 AC_ARG_WITH(system-zlib,
2711 [ --with-system-zlib use installed libz],
2718 dnl Very limited version of automake's enable-maintainer-mode
2720 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2721 dnl maintainer-mode is disabled by default
2722 AC_ARG_ENABLE(maintainer-mode,
2723 [ --enable-maintainer-mode
2724 enable make rules and dependencies not useful
2725 (and sometimes confusing) to the casual installer],
2726 maintainer_mode=$enableval,
2729 AC_MSG_RESULT($maintainer_mode)
2731 if test "$maintainer_mode" = "yes"; then
2738 # Make empty files to contain the specs and options for each language.
2739 # Then add #include lines to for a compiler that has specs and/or options.
2744 for subdir in . $subdirs
2746 if test -f $srcdir/$subdir/lang-specs.h; then
2747 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2749 if test -f $srcdir/$subdir/lang-options.h; then
2750 lang_options_files="$lang_options_files $srcdir/$subdir/lang-options.h"
2752 if test -f $srcdir/$subdir/$subdir-tree.def; then
2753 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2757 # These (without "all_") are set in each config-lang.in.
2758 # `language' must be a single word so is spelled singularly.
2763 all_outputs='Makefile intl/Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
2764 # List of language makefile fragments.
2766 # Files for gengtype
2767 all_gtfiles="$target_gtfiles"
2768 # Files for gengtype with language
2769 all_gtfiles_files_langs=
2770 all_gtfiles_files_files=
2772 # Add the language fragments.
2773 # Languages are added via two mechanisms. Some information must be
2774 # recorded in makefile variables, these are defined in config-lang.in.
2775 # We accumulate them and plug them into the main Makefile.
2776 # The other mechanism is a set of hooks for each of the main targets
2777 # like `clean', `install', etc.
2779 language_fragments="Make-lang"
2780 language_hooks="Make-hooks"
2782 for s in .. $subdirs
2792 . ${srcdir}/$s/config-lang.in
2793 if test "x$language" = x
2795 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2798 all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Make-lang.in"
2799 if test -f ${srcdir}/$s/Makefile.in
2800 then all_lang_makefiles="$all_lang_makefiles ${srcdir}/$s/Makefile.in"
2802 all_languages="$all_languages $language"
2803 if test "x$boot_language" = xyes
2805 all_boot_languages="$all_boot_languages $language"
2807 all_compilers="$all_compilers $compilers"
2808 all_stagestuff="$all_stagestuff $stagestuff"
2809 all_outputs="$all_outputs $outputs"
2810 all_gtfiles="$all_gtfiles $gtfiles"
2811 for f in .. $gtfiles
2815 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2816 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2822 # Pick up gtfiles for c
2825 . ${srcdir}/c-config-lang.in
2826 all_gtfiles="$all_gtfiles $gtfiles"
2827 for f in .. $gtfiles
2831 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2832 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2837 for language in .. $all_languages
2839 if test $language != ".."
2841 check_languages="$check_languages check-$language"
2845 # Since we can't use `::' targets, we link each language in
2846 # with a set of hooks, reached indirectly via lang.${target}.
2850 target_list="all.build all.cross start.encap rest.encap tags \
2851 info dvi generated-manpages \
2852 install-normal install-common install-info install-man \
2854 mostlyclean clean distclean extraclean maintainer-clean \
2855 stage1 stage2 stage3 stage4"
2856 for t in $target_list
2859 for lang in .. $all_languages
2861 if test $lang != ".."; then
2865 echo "lang.$t: $x" >> Make-hooks
2870 echo "dir ." > .gdbinit
2871 echo "dir ${srcdir}" >> .gdbinit
2872 if test x$gdb_needs_out_file_path = xyes
2874 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
2876 if test "x$subdirs" != x; then
2879 echo "dir ${srcdir}/$s" >> .gdbinit
2882 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
2884 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
2885 # absolute path for gcc_tooldir based on inserting the number of up-directory
2886 # movements required to get from $(exec_prefix) to $(prefix) into the basic
2887 # $(libsubdir)/@(unlibsubdir) based path.
2888 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
2889 # make and thus we'd get different behavior depending on where we built the
2891 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
2892 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_alias)'
2894 changequote(<<, >>)dnl
2895 # An explanation of the sed strings:
2896 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
2897 # -e 's|/$||' match a trailing forward slash and eliminates it
2898 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
2899 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
2901 # (*) Note this pattern overwrites the first character of the string
2902 # with a forward slash if one is not already present. This is not a
2903 # problem because the exact names of the sub-directories concerned is
2904 # unimportant, just the number of them matters.
2906 # The practical upshot of these patterns is like this:
2908 # prefix exec_prefix result
2909 # ------ ----------- ------
2911 # /foo/ /foo/bar ../
2912 # /foo /foo/bar/ ../
2913 # /foo/ /foo/bar/ ../
2914 # /foo /foo/bar/ugg ../../
2917 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_alias)"
2918 changequote([, ])dnl
2920 AC_SUBST(gcc_tooldir)
2923 # Find a directory in which to install a shared libgcc.
2925 AC_ARG_ENABLE(version-specific-runtime-libs,
2926 [ --enable-version-specific-runtime-libs
2927 specify that runtime libraries should be
2928 installed in a compiler-specific directory])
2930 AC_ARG_WITH(slibdir,
2931 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
2932 slibdir="$with_slibdir",
2933 if test "${enable_version_specific_runtime_libs+set}" = set; then
2934 slibdir='$(libsubdir)'
2935 elif test "$host" != "$target"; then
2936 slibdir='$(build_tooldir)/lib'
2942 objdir=`${PWDCMD-pwd}`
2945 # Process the language and host/target makefile fragments.
2946 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
2948 # Substitute configuration variables
2951 AC_SUBST(all_boot_languages)
2952 AC_SUBST(all_compilers)
2953 AC_SUBST(all_gtfiles)
2954 AC_SUBST(all_gtfiles_files_langs)
2955 AC_SUBST(all_gtfiles_files_files)
2956 AC_SUBST(all_lang_makefiles)
2957 AC_SUBST(all_languages)
2958 AC_SUBST(all_stagestuff)
2959 AC_SUBST(build_exeext)
2960 AC_SUBST(build_install_headers_dir)
2961 AC_SUBST(build_xm_file_list)
2962 AC_SUBST(build_xm_file)
2963 AC_SUBST(build_xm_defines)
2964 AC_SUBST(check_languages)
2965 AC_SUBST(cc_set_by_configure)
2966 AC_SUBST(quoted_cc_set_by_configure)
2967 AC_SUBST(cpp_install_dir)
2968 AC_SUBST(dep_host_xmake_file)
2969 AC_SUBST(dep_tmake_file)
2970 AC_SUBST(extra_headers_list)
2971 AC_SUBST(extra_objs)
2972 AC_SUBST(extra_parts)
2973 AC_SUBST(extra_passes)
2974 AC_SUBST(extra_programs)
2975 AC_SUBST(float_h_file)
2976 AC_SUBST(gcc_config_arguments)
2977 AC_SUBST(gcc_gxx_include_dir)
2978 AC_SUBST(libstdcxx_incdir)
2979 AC_SUBST(gcc_version)
2980 AC_SUBST(gcc_version_full)
2981 AC_SUBST(gcc_version_trigger)
2982 AC_SUBST(host_exeext)
2983 AC_SUBST(host_extra_gcc_objs)
2984 AC_SUBST(host_xm_file_list)
2985 AC_SUBST(host_xm_file)
2986 AC_SUBST(host_xm_defines)
2987 AC_SUBST(out_host_hook_obj)
2989 AC_SUBST(lang_options_files)
2990 AC_SUBST(lang_specs_files)
2991 AC_SUBST(lang_tree_files)
2992 AC_SUBST(local_prefix)
2994 AC_SUBST(objc_boehm_gc)
2996 AC_SUBST(out_object_file)
2997 AC_SUBST(stage_prefix_set_by_configure)
2998 AC_SUBST(quoted_stage_prefix_set_by_configure)
2999 AC_SUBST(symbolic_link)
3000 AC_SUBST(thread_file)
3001 AC_SUBST(tm_file_list)
3003 AC_SUBST(tm_defines)
3004 AC_SUBST(tm_p_file_list)
3007 AC_SUBST(xm_defines)
3008 AC_SUBST(target_alias)
3009 AC_SUBST(c_target_objs)
3010 AC_SUBST(cxx_target_objs)
3011 AC_SUBST(target_cpu_default)
3013 AC_SUBST_FILE(target_overrides)
3014 AC_SUBST_FILE(host_overrides)
3015 AC_SUBST_FILE(language_fragments)
3016 AC_SUBST_FILE(language_hooks)
3018 # Echo that links are built
3019 if test x$host = x$target
3027 if test x$host != x$build
3029 str3=" on a $build system"
3032 if test "x$str2" != x || test "x$str3" != x
3037 echo "Links are now set up to build a ${str1}compiler for ${target}$str4" 1>&2
3039 if test "x$str2" != x || test "x$str3" != x
3041 echo " ${str2}${str3}." 1>&2
3044 # Truncate the target if necessary
3045 if test x$host_truncate_target != x; then
3046 target=`echo $target | sed -e 's/\(..............\).*/\1/'`
3049 # Configure the subdirectories
3050 # AC_CONFIG_SUBDIRS($subdirs)
3052 # Create the Makefile
3053 # and configure language subdirectories
3054 AC_OUTPUT($all_outputs,
3056 case x$CONFIG_HEADERS in
3057 xauto-host.h:config.in)
3060 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3061 # bootstrapping and the installation procedure can still use
3062 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3063 # FLAGS_TO_PASS has been modified to solve the problem there.
3064 # This is virtually a duplicate of what happens in configure.lang; we do
3065 # an extra check to make sure this only happens if ln -s can be used.
3066 if test "$symbolic_link" = "ln -s"; then
3067 for d in .. ${subdirs} fixinc ; do
3068 if test $d != ..; then
3069 STARTDIR=`${PWDCMD-pwd}`
3071 for t in stage1 stage2 stage3 stage4 include
3074 $symbolic_link ../$t $t 2>/dev/null
3080 # Avoid having to add intl to our include paths.
3081 if test -f intl/libintl.h; then
3082 echo creating libintl.h
3083 echo '#include "intl/libintl.h"' >libintl.h
3087 symbolic_link='$symbolic_link'