2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
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, 51 Franklin Street, Fifth Floor, Boston, MA
24 # --------------------------------
25 # Initialization and sanity checks
26 # --------------------------------
30 AC_CONFIG_SRCDIR(tree.c)
31 AC_CONFIG_HEADER(auto-host.h:config.in)
33 gcc_version=`cat $srcdir/BASE-VER`
35 # Determine the host, build, and target systems
40 # Determine the noncanonical target name, for directory use.
41 ACX_NONCANONICAL_TARGET
43 # Determine the target- and build-specific subdirectories
46 # Set program_transform_name
49 # Check for bogus environment variables.
50 # Test if LIBRARY_PATH contains the notation for the current directory
51 # since this would lead to problems installing/building glibc.
52 # LIBRARY_PATH contains the current directory if one of the following
54 # - one of the terminals (":" and ";") is the first or last sign
55 # - two terminals occur directly after each other
56 # - the path contains an element with a dot in it
57 AC_MSG_CHECKING(LIBRARY_PATH variable)
59 case ${LIBRARY_PATH} in
60 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
61 library_path_setting="contains current directory"
64 library_path_setting="ok"
68 AC_MSG_RESULT($library_path_setting)
69 if test "$library_path_setting" != "ok"; then
71 *** LIBRARY_PATH shouldn't contain the current directory when
72 *** building gcc. Please change the environment variable
73 *** and run configure again.])
76 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
77 # since this would lead to problems installing/building glibc.
78 # GCC_EXEC_PREFIX contains the current directory if one of the following
80 # - one of the terminals (":" and ";") is the first or last sign
81 # - two terminals occur directly after each other
82 # - the path contains an element with a dot in it
83 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
85 case ${GCC_EXEC_PREFIX} in
86 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
87 gcc_exec_prefix_setting="contains current directory"
90 gcc_exec_prefix_setting="ok"
94 AC_MSG_RESULT($gcc_exec_prefix_setting)
95 if test "$gcc_exec_prefix_setting" != "ok"; then
97 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
98 *** building gcc. Please change the environment variable
99 *** and run configure again.])
106 # Specify the local prefix
108 AC_ARG_WITH(local-prefix,
109 [ --with-local-prefix=DIR specifies directory to put local include],
110 [case "${withval}" in
111 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
113 *) local_prefix=$with_local_prefix ;;
116 # Default local prefix if it is empty
117 if test x$local_prefix = x; then
118 local_prefix=/usr/local
121 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
122 # passed in by the toplevel make and thus we'd get different behavior
123 # depending on where we built the sources.
125 # Specify the g++ header file directory
126 AC_ARG_WITH(gxx-include-dir,
127 [ --with-gxx-include-dir=DIR
128 specifies directory to put g++ header files],
129 [case "${withval}" in
130 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
132 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
135 if test x${gcc_gxx_include_dir} = x; then
136 if test x${enable_version_specific_runtime_libs} = xyes; then
137 gcc_gxx_include_dir='${libsubdir}/include/c++'
139 libstdcxx_incdir='c++/$(version)'
140 changequote(<<, >>)dnl
141 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
146 AC_ARG_WITH(cpp_install_dir,
147 [ --with-cpp-install-dir=DIR
148 install the user visible C preprocessor in DIR
149 (relative to PREFIX) as well as PREFIX/bin],
150 [if test x$withval = xyes; then
151 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
152 elif test x$withval != xno; then
153 cpp_install_dir=$withval
156 # We would like to our source tree to be readonly. However when releases or
157 # pre-releases are generated, the flex/bison generated files as well as the
158 # various formats of manuals need to be included along with the rest of the
159 # sources. Therefore we have --enable-generated-files-in-srcdir to do
162 AC_MSG_CHECKING([whether to place generated files in the source directory])
163 dnl generated-files-in-srcdir is disabled by default
164 AC_ARG_ENABLE(generated-files-in-srcdir,
165 [ --enable-generated-files-in-srcdir
166 put copies of generated files in source dir
167 intended for creating source tarballs for users
168 without texinfo bison or flex.],
169 generated_files_in_srcdir=$enableval,
170 generated_files_in_srcdir=no)
172 AC_MSG_RESULT($generated_files_in_srcdir)
174 if test "$generated_files_in_srcdir" = "yes"; then
181 # -------------------
182 # Find default linker
183 # -------------------
187 [ --with-gnu-ld arrange to work with GNU ld.],
188 gnu_ld_flag="$with_gnu_ld",
191 # With pre-defined ld
193 [ --with-ld arrange to use the specified ld (full pathname)],
194 DEFAULT_LINKER="$with_ld")
195 if test x"${DEFAULT_LINKER+set}" = x"set"; then
196 if test ! -x "$DEFAULT_LINKER"; then
197 AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
198 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
201 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
202 [Define to enable the use of a default linker.])
205 AC_MSG_CHECKING([whether a default linker was specified])
206 if test x"${DEFAULT_LINKER+set}" = x"set"; then
207 if test x"$gnu_ld_flag" = x"no"; then
208 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
210 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
216 # With demangler in GNU ld
217 AC_ARG_WITH(demangler-in-ld,
218 [ --with-demangler-in-ld try to use demangler in GNU ld.],
219 demangler_in_ld="$with_demangler_in_ld",
222 # ----------------------
223 # Find default assembler
224 # ----------------------
228 [ --with-gnu-as arrange to work with GNU as],
229 gas_flag="$with_gnu_as",
233 [ --with-as arrange to use the specified as (full pathname)],
234 DEFAULT_ASSEMBLER="$with_as")
235 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
236 if test ! -x "$DEFAULT_ASSEMBLER"; then
237 AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
238 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
241 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
242 [Define to enable the use of a default assembler.])
245 AC_MSG_CHECKING([whether a default assembler was specified])
246 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
247 if test x"$gas_flag" = x"no"; then
248 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
250 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
260 # If a non-executable a.out is present (e.g. created by GNU as above even if
261 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
262 # file, even when creating an executable, so an execution test fails.
263 # Remove possible default executable files to avoid this.
265 # FIXME: This really belongs into AC_PROG_CC and can be removed once
266 # Autoconf includes it.
267 rm -f a.out a.exe b.out
269 # Find the native compiler
272 # autoconf is lame and doesn't give us any substitution variable for this.
273 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
274 NO_MINUS_C_MINUS_O=yes
276 OUTPUT_OPTION='-o $@'
278 AC_SUBST(NO_MINUS_C_MINUS_O)
279 AC_SUBST(OUTPUT_OPTION)
281 # -------------------------
282 # Check C compiler features
283 # -------------------------
288 # sizeof(char) is 1 by definition.
289 AC_CHECK_SIZEOF(void *)
290 AC_CHECK_SIZEOF(short)
292 AC_CHECK_SIZEOF(long)
293 AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
294 AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)])
296 # ---------------------
297 # Warnings and checking
298 # ---------------------
300 # Check $CC warning features (if it's GCC).
301 # We want to use -pedantic, but we don't want warnings about
305 # So, we only use -pedantic if we can disable those warnings.
308 [whether ${CC} accepts -Wno-long-long],
309 [ac_cv_prog_cc_w_no_long_long],
310 [save_CFLAGS="$CFLAGS"
311 CFLAGS="-Wno-long-long"
312 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
313 [ac_cv_prog_cc_w_no_long_long=yes],
314 [ac_cv_prog_cc_w_no_long_long=no])
315 CFLAGS="$save_CFLAGS"
319 [whether ${CC} accepts -Wno-variadic-macros],
320 [ac_cv_prog_cc_w_no_variadic_macros],
321 [save_CFLAGS="$CFLAGS"
322 CFLAGS="-Wno-variadic-macros"
323 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
324 [ac_cv_prog_cc_w_no_variadic_macros=yes],
325 [ac_cv_prog_cc_w_no_variadic_macros=no])
326 CFLAGS="$save_CFLAGS"
330 [whether ${CC} accepts -Wno-overlength-strings],
331 [ac_cv_prog_cc_w_no_overlength_strings],
332 [save_CFLAGS="$CFLAGS"
333 CFLAGS="-Wno-overlength-strings"
334 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
335 [ac_cv_prog_cc_w_no_overlength_strings=yes],
336 [ac_cv_prog_cc_w_no_overlength_strings=no])
337 CFLAGS="$save_CFLAGS"
341 if test $ac_cv_prog_cc_w_no_long_long = yes \
342 && test $ac_cv_prog_cc_w_no_variadic_macros = yes \
343 && test $ac_cv_prog_cc_w_no_overlength_strings = yes ; then
344 strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings"
347 # Add -Wold-style-definition if it's accepted
349 [whether ${CC} accepts -Wold-style-definition],
350 [ac_cv_prog_cc_w_old_style_definition],
351 [save_CFLAGS="$CFLAGS"
352 CFLAGS="-Wold-style-definition"
353 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
354 [ac_cv_prog_cc_w_old_style_definition=yes],
355 [ac_cv_prog_cc_w_old_style_definition=no])
356 CFLAGS="$save_CFLAGS"
358 if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
359 strict1_warn="${strict1_warn} -Wold-style-definition"
362 # Add -Wmissing-format-attribute if it's accepted
364 [whether ${CC} accepts -Wmissing-format-attribute],
365 [ac_cv_prog_cc_w_missing_format_attribute],
366 [save_CFLAGS="$CFLAGS"
367 CFLAGS="-Wmissing-format-attribute"
368 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
369 [ac_cv_prog_cc_w_missing_format_attribute=yes],
370 [ac_cv_prog_cc_w_missing_format_attribute=no])
371 CFLAGS="$save_CFLAGS"
373 if test $ac_cv_prog_cc_w_missing_format_attribute = yes ; then
374 strict1_warn="${strict1_warn} -Wmissing-format-attribute"
377 # Enable -Werror, period.
378 AC_ARG_ENABLE(werror_always,
379 [ --enable-werror-always enable -Werror always], [],
380 [enable_werror_always=no])
381 if test x${enable_werror_always} = xyes ; then
382 strict1_warn="${strict1_warn} -Werror"
386 AC_SUBST(strict1_warn)
388 # Get C++ compatibility warning flag, if supported.
390 [whether ${CC} accepts -Wc++-compat],
391 [ac_cv_prog_cc_w_cxx_compat],
392 [save_CFLAGS="$CFLAGS"
393 CFLAGS="-Wc++-compat"
394 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
395 [ac_cv_prog_cc_w_cxx_compat=yes],
396 [ac_cv_prog_cc_w_cxx_compat=no])
397 CFLAGS="$save_CFLAGS"
399 if test x${ac_cv_prog_cc_w_cxx_compat} = xyes; then
400 cxx_compat_warn="-Wc++-compat"
402 AC_SUBST(cxx_compat_warn)
405 # If the native compiler is GCC, we can enable warnings even in stage1.
406 # That's useful for people building cross-compilers, or just running a
409 if test "x$GCC" = "xyes"; then
410 warn_cflags='$(GCC_WARN_CFLAGS)'
412 AC_SUBST(warn_cflags)
414 # Enable -Werror in bootstrap stage2 and later.
416 if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then
419 AC_ARG_ENABLE(werror,
420 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
421 [if test x$is_release = x ; then
422 # Default to "yes" on development branches.
425 # Default to "no" on release branches.
428 if test x$enable_werror = xyes ; then
433 # Enable expensive internal checks
434 AC_ARG_ENABLE(checking,
435 [ --enable-checking[=LIST]
436 enable expensive run-time checks. With LIST,
437 enable only specific categories of checks.
438 Categories are: yes,no,all,none,release.
439 Flags are: assert,fold,gc,gcac,misc,
440 rtlflag,rtl,runtime,tree,valgrind.],
441 [ac_checking_flags="${enableval}"],[
442 # Determine the default checks.
443 if test x$is_release = x ; then
444 ac_checking_flags=yes
446 ac_checking_flags=release
452 ac_gc_always_collect=
455 ac_runtime_checking=1
457 ac_valgrind_checking=
458 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
459 for check in $ac_checking_flags
462 # these set all the flags to specific states
463 yes) ac_assert_checking=1 ; ac_checking=1 ;
464 ac_fold_checking= ; ac_gc_checking=1 ;
465 ac_gc_always_collect= ; ac_rtl_checking= ;
466 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
467 ac_tree_checking=1 ; ac_valgrind_checking= ;;
468 no|none) ac_assert_checking= ; ac_checking= ;
469 ac_fold_checking= ; ac_gc_checking= ;
470 ac_gc_always_collect= ; ac_rtl_checking= ;
471 ac_rtlflag_checking= ; ac_runtime_checking= ;
472 ac_tree_checking= ; ac_valgrind_checking= ;;
473 all) ac_assert_checking=1 ; ac_checking=1 ;
474 ac_fold_checking=1 ; ac_gc_checking=1 ;
475 ac_gc_always_collect=1 ; ac_rtl_checking=1 ;
476 ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
477 ac_tree_checking=1 ; ac_valgrind_checking= ;;
478 release) ac_assert_checking=1 ; ac_checking= ;
479 ac_fold_checking= ; ac_gc_checking= ;
480 ac_gc_always_collect= ; ac_rtl_checking= ;
481 ac_rtlflag_checking= ; ac_runtime_checking=1 ;
482 ac_tree_checking= ; ac_valgrind_checking= ;;
483 # these enable particular checks
484 assert) ac_assert_checking=1 ;;
485 fold) ac_fold_checking=1 ;;
486 gc) ac_gc_checking=1 ;;
487 gcac) ac_gc_always_collect=1 ;;
488 misc) ac_checking=1 ;;
489 rtl) ac_rtl_checking=1 ;;
490 rtlflag) ac_rtlflag_checking=1 ;;
491 runtime) ac_runtime_checking=1 ;;
492 tree) ac_tree_checking=1 ;;
493 valgrind) ac_valgrind_checking=1 ;;
494 *) AC_MSG_ERROR(unknown check category $check) ;;
500 if test x$ac_checking != x ; then
501 AC_DEFINE(ENABLE_CHECKING, 1,
502 [Define if you want more run-time sanity checks. This one gets a grab
503 bag of miscellaneous but relatively cheap checks.])
504 nocommon_flag=-fno-common
506 AC_SUBST(nocommon_flag)
507 if test x$ac_assert_checking != x ; then
508 AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
509 [Define if you want assertions enabled. This is a cheap check.])
511 GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING)
512 if test x$ac_runtime_checking != x ; then
513 AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1,
514 [Define if you want runtime assertions enabled. This is a cheap check.])
516 if test x$ac_tree_checking != x ; then
517 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
518 [Define if you want all operations on trees (the basic data
519 structure of the front ends) to be checked for dynamic type safety
520 at runtime. This is moderately expensive. The tree browser debugging
521 routines will also be enabled by this option.
523 TREEBROWSER=tree-browser.o
525 AC_SUBST(TREEBROWSER)
526 if test x$ac_rtl_checking != x ; then
527 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
528 [Define if you want all operations on RTL (the basic data structure
529 of the optimizer and back end) to be checked for dynamic type safety
530 at runtime. This is quite expensive.])
532 if test x$ac_rtlflag_checking != x ; then
533 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
534 [Define if you want RTL flag accesses to be checked against the RTL
535 codes that are supported for each access macro. This is relatively
538 if test x$ac_gc_checking != x ; then
539 AC_DEFINE(ENABLE_GC_CHECKING, 1,
540 [Define if you want the garbage collector to do object poisoning and
541 other memory allocation checks. This is quite expensive.])
543 if test x$ac_gc_always_collect != x ; then
544 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
545 [Define if you want the garbage collector to operate in maximally
546 paranoid mode, validating the entire heap and collecting garbage at
547 every opportunity. This is extremely expensive.])
549 if test x$ac_fold_checking != x ; then
550 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
551 [Define if you want fold checked that it never destructs its argument.
552 This is quite expensive.])
554 valgrind_path_defines=
557 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
558 dnl # an if statement. This was the source of very frustrating bugs
559 dnl # in converting to autoconf 2.5x!
560 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
562 if test x$ac_valgrind_checking != x ; then
563 # It is certainly possible that there's valgrind but no valgrind.h.
564 # GCC relies on making annotations so we must have both.
565 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
566 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
567 [[#include <valgrind/memcheck.h>
568 #ifndef VALGRIND_DISCARD
569 #error VALGRIND_DISCARD not defined
571 [gcc_cv_header_valgrind_memcheck_h=yes],
572 [gcc_cv_header_valgrind_memcheck_h=no])
573 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
574 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
575 AC_PREPROC_IFELSE([AC_LANG_SOURCE(
576 [[#include <memcheck.h>
577 #ifndef VALGRIND_DISCARD
578 #error VALGRIND_DISCARD not defined
580 [gcc_cv_header_memcheck_h=yes],
581 [gcc_cv_header_memcheck_h=no])
582 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
583 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
584 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
585 if test "x$valgrind_path" = "x" \
586 || (test $have_valgrind_h = no \
587 && test $gcc_cv_header_memcheck_h = no \
588 && test $gcc_cv_header_valgrind_memcheck_h = no); then
589 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
591 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
592 valgrind_command="$valgrind_path -q"
593 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
594 [Define if you want to run subprograms and generated programs
595 through valgrind (a memory checker). This is extremely expensive.])
596 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
597 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
598 [Define if valgrind's valgrind/memcheck.h header is installed.])
600 if test $gcc_cv_header_memcheck_h = yes; then
601 AC_DEFINE(HAVE_MEMCHECK_H, 1,
602 [Define if valgrind's memcheck.h header is installed.])
605 AC_SUBST(valgrind_path_defines)
606 AC_SUBST(valgrind_command)
608 AC_ARG_ENABLE(mapped-location,
609 [ --enable-mapped-location location_t is fileline integer cookie],,
610 enable_mapped_location=no)
612 if test "$enable_mapped_location" = yes ; then
613 AC_DEFINE(USE_MAPPED_LOCATION, 1,
614 [Define if location_t is fileline integer cookie.])
617 # Enable code coverage collection
618 AC_ARG_ENABLE(coverage,
619 [ --enable-coverage[=LEVEL]
620 enable compiler's code coverage collection.
621 Use to measure compiler performance and locate
622 unused parts of the compiler. With LEVEL, specify
623 optimization. Values are opt, noopt,
625 [case "${enableval}" in
627 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
630 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
633 # a.k.a. --disable-coverage
637 AC_MSG_ERROR(unknown coverage setting $enableval)
641 AC_SUBST(coverage_flags)
643 AC_ARG_ENABLE(gather-detailed-mem-stats,
644 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
645 [enable_gather_detailed_mem_stats=no])
646 if test x$enable_gather_detailed_mem_stats = xyes ; then
647 AC_DEFINE(GATHER_STATISTICS, 1,
648 [Define to enable detailed memory allocation stats gathering.])
651 # -------------------------------
652 # Miscenalleous configure options
653 # -------------------------------
657 [ --with-stabs arrange to use stabs instead of host debug format],
661 # Determine whether or not multilibs are enabled.
662 AC_ARG_ENABLE(multilib,
663 [ --enable-multilib enable library support for multiple ABIs],
664 [], [enable_multilib=yes])
665 AC_SUBST(enable_multilib)
667 # Enable __cxa_atexit for C++.
668 AC_ARG_ENABLE(__cxa_atexit,
669 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
672 # Enable C extension for decimal float if target supports it.
673 AC_ARG_ENABLE(decimal-float,
674 [ --enable-decimal-float enable decimal float extension to C],
676 if test x$enablevar = xyes ; then
678 powerpc*-*-linux* | i?86*-*-linux*)
679 enable_decimal_float=yes
682 AC_MSG_WARN(decimal float is not supported for this target, ignored)
683 enable_decimal_float=no
687 ], [enable_decimal_float=no])
689 AC_SUBST(enable_decimal_float)
691 dfp=`if test $enable_decimal_float = yes; then echo 1; else echo 0; fi`
692 AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp,
693 [Define to 1 to enable decimal float extension to C.])
696 # Pass with no value to take the default
697 # Pass with a value to specify a thread package
698 AC_ARG_ENABLE(threads,
699 [ --enable-threads enable thread usage for target GCC
700 --enable-threads=LIB use LIB thread package for target GCC],,
704 [ --enable-tls enable or disable generation of tls code
705 overriding the assembler check for tls support],
709 *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls.
710 Valid choices are 'yes' and 'no'.]) ;;
714 AC_ARG_ENABLE(objc-gc,
715 [ --enable-objc-gc enable the use of Boehm's garbage collector with
716 the GNU Objective-C runtime],
717 if test x$enable_objc_gc = xno; then
725 [ --with-dwarf2 force the default debug format to be DWARF 2],
726 dwarf2="$with_dwarf2",
729 AC_ARG_ENABLE(shared,
730 [ --disable-shared don't provide a shared libgcc],
732 case $enable_shared in
736 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
737 for pkg in $enableval; do
738 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
745 ], [enable_shared=yes])
746 AC_SUBST(enable_shared)
748 AC_ARG_WITH(build-sysroot,
749 [ --with-build-sysroot=sysroot
750 use sysroot as the system root during the build])
753 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
755 case ${with_sysroot} in
756 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
757 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
760 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
761 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
763 if test "x$exec_prefix" = xNONE; then
764 if test "x$prefix" = xNONE; then
765 test_prefix=/usr/local
770 test_prefix=$exec_prefix
772 case ${TARGET_SYSTEM_ROOT} in
773 "${test_prefix}"|"${test_prefix}/"*|\
774 '${exec_prefix}'|'${exec_prefix}/'*)
775 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
776 TARGET_SYSTEM_ROOT_DEFINE="$t"
781 TARGET_SYSTEM_ROOT_DEFINE=
782 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
784 AC_SUBST(TARGET_SYSTEM_ROOT)
785 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
786 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
788 # Build with intermodule optimisations
789 AC_ARG_ENABLE(intermodule,
790 [ --enable-intermodule build the compiler in one step],
791 [case ${enable_intermodule} in
792 yes) onestep="-onestep";;
798 # Sanity check enable_languages in case someone does not run the toplevel
799 # configure # script.
800 AC_ARG_ENABLE(languages,
801 [ --enable-languages=LIST specify which front-ends to build],
802 [case ,${enable_languages}, in
804 # go safe -- we cannot be much sure without the toplevel
806 # analysis of which target libs are present and usable
810 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
815 enable_languages=c,${enable_languages}
818 [enable_languages=c])
821 # -------------------------
822 # Checks for other programs
823 # -------------------------
827 # Find some useful tools
829 # We need awk to create options.c and options.h.
830 # Bail out if it's missing.
832 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
840 # By default, the Darwin ranlib will not treat common symbols as
841 # definitions when building the archive table of contents. Other
842 # ranlibs do that; pass an option to the Darwin ranlib that makes
843 # it behave similarly.
849 AC_SUBST(ranlib_flags)
853 # See if cmp has --ignore-initial.
854 gcc_AC_PROG_CMP_IGNORE_INITIAL
856 # See if we have the mktemp command.
857 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
859 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
861 # See if makeinfo has been installed and is modern enough
862 # that we can use it.
863 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
864 [GNU texinfo.* \([0-9][0-9.]*\)],
866 if test $gcc_cv_prog_makeinfo_modern = no; then
867 MAKEINFO="$MISSING makeinfo"
869 *** Makeinfo is missing or too old.
870 *** Info documentation will not be built.])
877 # Is pod2man recent enough to regenerate manpages?
878 AC_MSG_CHECKING([for recent Pod::Man])
879 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
881 GENERATED_MANPAGES=generated-manpages
886 AC_SUBST(GENERATED_MANPAGES)
889 dnl Don't use AC_PROG_LEX; we insist on flex.
890 dnl LEXLIB is not useful in gcc.
891 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
894 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
896 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
897 # check for build == host before using them.
900 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
901 && test -d ../binutils ; then
902 NM='$(objdir)/../binutils/nm-new'
904 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
908 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
909 && test -d ../binutils ; then
910 AR='$(objdir)/../binutils/ar'
912 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
916 # --------------------
917 # Checks for C headers
918 # --------------------
920 AC_MSG_CHECKING(for GNU C library)
921 AC_CACHE_VAL(gcc_cv_glibc,
922 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
923 [[#include <features.h>]], [[
924 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
925 #error Not a GNU C library system
929 AC_MSG_RESULT($gcc_cv_glibc)
930 if test $gcc_cv_glibc = yes; then
931 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
934 # Need to reject headers which give warnings, so that the -Werror bootstrap
935 # works later. *sigh* This needs to come before all header checks.
942 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
943 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
944 sys/resource.h sys/param.h sys/times.h sys/stat.h \
945 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
947 # Check for thread headers.
948 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
949 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
951 # These tests can't be done till we know if we have limits.h.
959 # Stage specific cflags for build.
965 stage1_cflags="-Wa,-J"
971 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
972 # sources; use -no-cpp-precomp to get to GNU cpp.
973 # Apple's GCC has bugs in designated initializer handling, so disable
975 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
978 AC_SUBST(stage1_cflags)
980 # These libraries may be used by collect2.
981 # We may need a special search path to get them linked.
982 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
984 for libs in '' -lld -lmld \
985 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
986 '-L/usr/lib/cmplrs/cc3.11 -lmld'
989 AC_TRY_LINK_FUNC(ldopen,
990 [gcc_cv_collect2_libs="$libs"; break])
993 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
994 case $gcc_cv_collect2_libs in
996 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
998 AC_SUBST(COLLECT2_LIBS)
1000 # When building Ada code on Alpha, we need exc_resume which is usually in
1001 # -lexc. So test for it.
1004 AC_SEARCH_LIBS(exc_resume, exc)
1007 AC_SUBST(GNAT_LIBEXC)
1009 # Some systems put ldexp and frexp in libm instead of libc; assume
1010 # they're both in the same place. jcf-dump needs them.
1013 AC_SEARCH_LIBS(ldexp, m)
1018 # Use <inttypes.h> only if it exists,
1019 # doesn't clash with <sys/types.h>, and declares intmax_t.
1020 AC_MSG_CHECKING(for inttypes.h)
1021 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
1022 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1023 [[#include <sys/types.h>
1024 #include <inttypes.h>]],
1025 [[intmax_t i = -1;]])],
1026 [gcc_cv_header_inttypes_h=yes],
1027 [gcc_cv_header_inttypes_h=no])])
1028 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
1029 if test $gcc_cv_header_inttypes_h = yes; then
1030 AC_DEFINE(HAVE_INTTYPES_H, 1,
1031 [Define if you have a working <inttypes.h> header file.])
1034 dnl Disabled until we have a complete test for buggy enum bitfields.
1035 dnl gcc_AC_C_ENUM_BF_UNSIGNED
1037 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
1038 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
1039 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
1040 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
1041 putchar_unlocked putc_unlocked)
1042 AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
1043 sysconf strsignal getrusage nl_langinfo scandir alphasort \
1044 gettimeofday mbstowcs wcswidth mmap mincore setlocale \
1047 if test x$ac_cv_func_mbstowcs = xyes; then
1048 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
1049 [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
1055 [gcc_cv_func_mbstowcs_works=yes],
1056 [gcc_cv_func_mbstowcs_works=no],
1057 [gcc_cv_func_mbstowcs_works=yes])])
1058 if test x$gcc_cv_func_mbstowcs_works = xyes; then
1059 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
1060 [Define this macro if mbstowcs does not crash when its
1061 first argument is NULL.])
1065 AC_CHECK_TYPE(ssize_t, int)
1067 # Try to determine the array type of the second argument of getgroups
1068 # for the target system (int or gid_t).
1070 if test "${target}" = "${build}"; then
1071 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
1074 # This condition may need some tweaking. It should include all
1075 # targets where the array type of the second argument of getgroups
1076 # is int and the type of gid_t is not equivalent to int.
1077 *-*-sunos* | *-*-ultrix*)
1078 TARGET_GETGROUPS_T=int
1081 TARGET_GETGROUPS_T=gid_t
1085 AC_SUBST(TARGET_GETGROUPS_T)
1087 gcc_AC_FUNC_MMAP_BLACKLIST
1091 # Under VMS, vfork works very differently than on Unix. The standard test
1092 # won't work, and it isn't easily adaptable. It makes more sense to
1094 ac_cv_func_vfork_works=yes
1100 # Until we have in-tree GNU iconv:
1102 AC_SUBST(LIBICONV_DEP)
1108 # We will need to find libiberty.h and ansidecl.h
1109 saved_CFLAGS="$CFLAGS"
1110 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1111 gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \
1112 strsignal strstr strverscmp \
1113 errno snprintf vsnprintf vasprintf malloc realloc calloc \
1114 free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
1115 #include "ansidecl.h"
1116 #include "system.h"])
1118 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1119 #include "ansidecl.h"
1121 #ifdef HAVE_SYS_RESOURCE_H
1122 #include <sys/resource.h>
1126 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1127 #include "ansidecl.h"
1129 #ifdef HAVE_SYS_RESOURCE_H
1130 #include <sys/resource.h>
1132 ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
1133 [Define to \`long' if <sys/resource.h> doesn't define.])])
1135 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1136 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1137 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1138 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1139 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1140 #include "ansidecl.h"
1149 gcc_AC_CHECK_DECLS(times, , ,[
1150 #include "ansidecl.h"
1152 #ifdef HAVE_SYS_TIMES_H
1153 #include <sys/times.h>
1157 # More time-related stuff.
1158 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1159 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1160 #include "ansidecl.h"
1162 #ifdef HAVE_SYS_TIMES_H
1163 #include <sys/times.h>
1165 ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])])
1166 if test $ac_cv_struct_tms = yes; then
1167 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1168 [Define if <sys/times.h> defines struct tms.])
1171 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1172 # revisit after autoconf 2.50.
1173 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1174 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1175 #include "ansidecl.h"
1177 ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
1178 if test $gcc_cv_type_clock_t = yes; then
1179 AC_DEFINE(HAVE_CLOCK_T, 1,
1180 [Define if <time.h> defines clock_t.])
1183 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1184 CFLAGS="$saved_CFLAGS"
1186 gcc_AC_INITFINI_ARRAY
1188 # mkdir takes a single argument on some systems.
1189 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1197 # With Setjmp/Longjmp based exception handling.
1198 AC_ARG_ENABLE(sjlj-exceptions,
1199 [ --enable-sjlj-exceptions
1200 arrange to use setjmp/longjmp exception handling],
1201 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1202 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1203 [Define 0/1 to force the choice for exception handling model.])])
1205 # For platforms with the unwind ABI which includes an unwind library,
1206 # libunwind, we can choose to use the system libunwind.
1207 AC_ARG_WITH(system-libunwind,
1208 [ --with-system-libunwind use installed libunwind])
1210 # --------------------------------------------------------
1211 # Build, host, and target specific configuration fragments
1212 # --------------------------------------------------------
1214 # Collect build-machine-specific information.
1215 . ${srcdir}/config.build
1217 # Collect host-machine-specific information.
1218 . ${srcdir}/config.host
1222 # Collect target-machine-specific information.
1223 . ${srcdir}/config.gcc
1225 extra_objs="${host_extra_objs} ${extra_objs}"
1226 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1228 # Default the target-machine variables that were not explicitly set.
1229 if test x"$tm_file" = x
1230 then tm_file=$cpu_type/$cpu_type.h; fi
1232 if test x"$extra_headers" = x
1233 then extra_headers=; fi
1235 if test x$md_file = x
1236 then md_file=$cpu_type/$cpu_type.md; fi
1238 if test x$out_file = x
1239 then out_file=$cpu_type/$cpu_type.c; fi
1241 if test x"$tmake_file" = x
1242 then tmake_file=$cpu_type/t-$cpu_type
1245 if test x"$dwarf2" = xyes
1246 then tm_file="$tm_file tm-dwarf2.h"
1249 # Say what files are being used for the output code and MD file.
1250 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1251 echo "Using \`$srcdir/config/$md_file' as machine description file."
1253 # If any of the xm_file variables contain nonexistent files, warn
1254 # about them and drop them.
1257 for x in $build_xm_file; do
1258 if test -f $srcdir/config/$x
1260 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1266 for x in $host_xm_file; do
1267 if test -f $srcdir/config/$x
1269 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1275 for x in $xm_file; do
1276 if test -f $srcdir/config/$x
1278 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1284 for f in $tm_file; do
1287 if test $count = ax; then
1288 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1290 echo "Using the following target machine macro files:"
1291 for f in $tm_file; do
1292 echo " $srcdir/config/$f"
1296 if test x$need_64bit_hwint = xyes; then
1297 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1298 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1301 if test x$use_long_long_for_widest_fast_int = xyes; then
1302 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1303 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1304 efficiently supported by the host hardware.])
1308 for f in $host_xm_file; do
1311 if test $count = a; then
1313 elif test $count = ax; then
1314 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1316 echo "Using the following host machine macro files:"
1317 for f in $host_xm_file; do
1318 echo " $srcdir/config/$f"
1321 echo "Using ${out_host_hook_obj} for host machine hooks."
1323 if test "$host_xm_file" != "$build_xm_file"; then
1325 for f in $build_xm_file; do
1328 if test $count = a; then
1330 elif test $count = ax; then
1331 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1333 echo "Using the following build machine macro files:"
1334 for f in $build_xm_file; do
1335 echo " $srcdir/config/$f"
1344 # Check if a valid thread package
1345 case ${enable_threads} in
1348 target_thread_file='single'
1352 target_thread_file='single'
1354 aix | dce | gnat | irix | posix | posix95 | rtems | \
1355 single | solaris | vxworks | win32 )
1356 target_thread_file=${enable_threads}
1359 echo "${enable_threads} is an unknown thread package" 1>&2
1364 if test x${thread_file} = x; then
1365 # No thread file set by target-specific clauses in config.gcc,
1366 # so use file chosen by default logic above
1367 thread_file=${target_thread_file}
1370 # Make gthr-default.h if we have a thread file.
1372 if test $thread_file != single; then
1373 rm -f gthr-default.h
1374 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1375 gthread_flags=-DHAVE_GTHR_DEFAULT
1377 AC_SUBST(gthread_flags)
1384 if test x$enable___cxa_atexit = xyes || \
1385 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1386 if test x$host = x$target; then
1387 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1388 [echo "__cxa_atexit can't be enabled on this target"])
1390 # We can't check for __cxa_atexit when building a cross, so assume
1394 if test x$use_cxa_atexit = xyes; then
1395 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2,
1396 [Define if you want to use __cxa_atexit, rather than atexit, to
1397 register C++ destructors for local statics and global objects.
1398 This is essential for fully standards-compliant handling of
1399 destructors, but requires __cxa_atexit in libc.])
1403 # Look for a file containing extra machine modes.
1404 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1405 extra_modes_file='$(srcdir)'/config/${extra_modes}
1406 AC_SUBST(extra_modes_file)
1407 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1408 [Define to the name of a file containing a list of extra machine modes
1409 for this architecture.])
1412 # Convert extra_options into a form suitable for Makefile use.
1414 for f in $extra_options; do
1415 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1417 AC_SUBST(extra_opt_files)
1419 # auto-host.h is the file containing items generated by autoconf and is
1420 # the first file included by config.h.
1421 # If host=build, it is correct to have bconfig include auto-host.h
1422 # as well. If host!=build, we are in error and need to do more
1423 # work to find out the build config parameters.
1424 if test x$host = x$build
1426 build_auto=auto-host.h
1428 # We create a subdir, then run autoconf in the subdir.
1429 # To prevent recursion we set host and build for the new
1430 # invocation of configure to the build for this invocation
1437 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1438 *) realsrcdir=../${srcdir};;
1440 saved_CFLAGS="${CFLAGS}"
1441 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1442 ${realsrcdir}/configure \
1443 --enable-languages=${enable_languages-all} \
1444 --target=$target_alias --host=$build_alias --build=$build_alias
1445 CFLAGS="${saved_CFLAGS}"
1447 # We just finished tests for the build machine, so rename
1448 # the file auto-build.h in the gcc directory.
1449 mv auto-host.h ../auto-build.h
1452 build_auto=auto-build.h
1454 AC_SUBST(build_subdir)
1456 tm_file="${tm_file} defaults.h"
1457 tm_p_file="${tm_p_file} tm-preds.h"
1458 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1459 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1460 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1461 # put this back in temporarily.
1462 xm_file="auto-host.h ansidecl.h ${xm_file}"
1469 # Compile in configure arguments.
1470 if test -f configargs.h ; then
1471 # Being re-configured.
1472 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1473 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1475 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1478 # Double all backslashes and backslash all quotes to turn
1479 # gcc_config_arguments into a C string.
1480 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1481 $gcc_config_arguments
1483 gcc_config_arguments_str=`cat conftest.out`
1486 cat > configargs.h <<EOF
1487 /* Generated automatically. */
1488 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1489 static const char thread_model[] = "$thread_file";
1491 static const struct {
1492 const char *name, *value;
1493 } configure_default_options[] = $configure_default_options;
1497 # Internationalization
1498 ZW_GNU_GETTEXT_SISTER_DIR
1500 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1501 # -liconv on the link line twice.
1502 case "$LIBINTL" in *$LIBICONV*)
1506 AC_ARG_ENABLE(secureplt,
1507 [ --enable-secureplt enable -msecure-plt by default for PowerPC],
1510 # Windows32 Registry support for specifying GCC installation paths.
1511 AC_ARG_ENABLE(win32-registry,
1512 [ --disable-win32-registry
1513 disable lookup of installation paths in the
1514 Registry on Windows hosts
1515 --enable-win32-registry enable registry lookup (default)
1516 --enable-win32-registry=KEY
1517 use KEY instead of GCC version as the last portion
1518 of the registry key],,)
1521 win32 | pe | cygwin* | mingw32* | uwin*)
1522 if test "x$enable_win32_registry" != xno; then
1523 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1526 if test "x$enable_win32_registry" != xno; then
1527 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1528 [Define to 1 if installation paths should be looked up in the Windows
1529 Registry. Ignored on non-Windows hosts.])
1531 if test "x$enable_win32_registry" != xyes \
1532 && test "x$enable_win32_registry" != x; then
1533 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1534 [Define to be the last component of the Windows registry key under which
1535 to look for installation paths. The full key used will be
1536 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1537 The default is the GCC version number.])
1543 # Get an absolute path to the GCC top-level source directory
1544 holddir=`${PWDCMD-pwd}`
1546 topdir=`${PWDCMD-pwd}`
1549 # Conditionalize the makefile for this host machine.
1551 for f in ${host_xmake_file}
1553 if test -f ${srcdir}/config/$f
1555 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1559 # Conditionalize the makefile for this target machine.
1561 for f in ${tmake_file}
1563 if test -f ${srcdir}/config/$f
1565 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1568 tmake_file="${tmake_file_}"
1570 # If the host doesn't support symlinks, modify CC in
1571 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1572 # Otherwise, we can use "CC=$(CC)".
1576 cc_set_by_configure="\$(CC)"
1577 quoted_cc_set_by_configure="\$(CC)"
1578 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1579 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1582 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1583 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1584 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1585 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1589 # This is a terrible hack which will go away some day.
1590 host_cc_for_libada=${CC}
1591 AC_SUBST(host_cc_for_libada)
1593 out_object_file=`basename $out_file .c`.o
1595 tm_file_list="options.h"
1596 tm_include_list="options.h"
1597 for f in $tm_file; do
1600 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1601 tm_include_list="${tm_include_list} $f"
1604 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1605 tm_include_list="${tm_include_list} config/$f"
1612 for f in $tm_p_file; do
1615 tm_p_file_list="${tm_p_file_list} $f"
1616 tm_p_include_list="${tm_p_include_list} $f"
1619 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1620 tm_p_include_list="${tm_p_include_list} config/$f"
1626 for f in $xm_file; do
1629 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1630 xm_include_list="${xm_include_list} $f"
1633 xm_file_list="${xm_file_list} $f"
1634 xm_include_list="${xm_include_list} $f"
1637 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1638 xm_include_list="${xm_include_list} config/$f"
1644 host_xm_include_list=
1645 for f in $host_xm_file; do
1648 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1649 host_xm_include_list="${host_xm_include_list} $f"
1652 host_xm_file_list="${host_xm_file_list} $f"
1653 host_xm_include_list="${host_xm_include_list} $f"
1656 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1657 host_xm_include_list="${host_xm_include_list} config/$f"
1663 for f in $build_xm_file; do
1666 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1667 build_xm_include_list="${build_xm_include_list} $f"
1669 auto-build.h | auto-host.h )
1670 build_xm_file_list="${build_xm_file_list} $f"
1671 build_xm_include_list="${build_xm_include_list} $f"
1674 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1675 build_xm_include_list="${build_xm_include_list} config/$f"
1680 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1681 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1682 CROSS= AC_SUBST(CROSS)
1683 ALL=all.internal AC_SUBST(ALL)
1684 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1686 if test "x$with_build_sysroot" != x; then
1687 build_system_header_dir=$with_build_sysroot'$(NATIVE_SYSTEM_HEADER_DIR)'
1689 # This value is used, even on a native system, because
1690 # CROSS_SYSTEM_HEADER_DIR is just
1691 # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR).
1692 build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
1695 if test x$host != x$target
1697 CROSS="-DCROSS_COMPILE"
1699 SYSTEM_HEADER_DIR=$build_system_header_dir
1700 case "$host","$target" in
1701 # Darwin crosses can use the host system's libraries and headers,
1702 # because of the fat library support. Of course, it must be the
1703 # same version of Darwin on both sides. Allow the user to
1704 # just say --target=foo-darwin without a version number to mean
1705 # "the version on this system".
1706 *-*-darwin*,*-*-darwin*)
1707 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1708 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1709 if test $hostos = $targetos -o $targetos = darwin ; then
1711 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1716 i?86-*-*,x86_64-*-* \
1717 | powerpc*-*-*,powerpc64*-*-*)
1718 CROSS="$CROSS -DNATIVE_CROSS" ;;
1720 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1721 SYSTEM_HEADER_DIR=$build_system_header_dir
1724 # If this is a cross-compiler that does not
1725 # have its own set of headers then define
1728 # If this is using newlib, without having the headers available now,
1729 # then define inhibit_libc in LIBGCC2_CFLAGS.
1730 # This prevents libgcc2 from containing any code which requires libc
1733 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1734 test x$with_newlib = xyes ; } &&
1735 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1738 AC_SUBST(inhibit_libc)
1740 # When building gcc with a cross-compiler, we need to adjust things so
1741 # that the generator programs are still built with the native compiler.
1742 # Also, we cannot run fixincludes or fix-header.
1744 # These are the normal (build=host) settings:
1745 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1746 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1747 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1749 # Possibly disable fixproto, on a per-target basis.
1750 case ${use_fixproto} in
1755 STMP_FIXPROTO=stmp-fixproto
1758 AC_SUBST(STMP_FIXPROTO)
1760 # And these apply if build != host, or we are generating coverage data
1761 if test x$build != x$host || test "x$coverage_flags" != x
1763 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1765 if test "x$TARGET_SYSTEM_ROOT" = x; then
1766 if test "x$STMP_FIXPROTO" != x; then
1767 STMP_FIXPROTO=stmp-install-fixproto
1772 # Expand extra_headers to include complete path.
1773 # This substitutes for lots of t-* files.
1775 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1776 for file in ${extra_headers} ; do
1777 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1780 # Define collect2 in Makefile.
1781 case $host_can_use_collect2 in
1783 *) collect2='collect2$(exeext)' ;;
1785 AC_SUBST([collect2])
1787 # Add a definition of USE_COLLECT2 if system wants one.
1788 case $use_collect2 in
1789 no) use_collect2= ;;
1792 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1793 xm_defines="${xm_defines} USE_COLLECT2"
1794 case $host_can_use_collect2 in
1796 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1802 # ---------------------------
1803 # Assembler & linker features
1804 # ---------------------------
1806 # Identify the assembler which will work hand-in-glove with the newly
1807 # built GCC, so that we can examine its features. This is the assembler
1808 # which will be driven by the driver program.
1810 # If build != host, and we aren't building gas in-tree, we identify a
1811 # build->target assembler and hope that it will have the same features
1812 # as the host->target assembler we'll be using.
1813 gcc_cv_gas_major_version=
1814 gcc_cv_gas_minor_version=
1815 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1817 m4_pattern_allow([AS_FOR_TARGET])dnl
1818 AS_VAR_SET_IF(gcc_cv_as,, [
1819 if test -x "$DEFAULT_ASSEMBLER"; then
1820 gcc_cv_as="$DEFAULT_ASSEMBLER"
1821 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1822 && test -f ../gas/Makefile \
1823 && test x$build = x$host; then
1824 gcc_cv_as=../gas/as-new$build_exeext
1825 elif test -x as$build_exeext; then
1826 # Build using assembler in the current directory.
1827 gcc_cv_as=./as$build_exeext
1828 elif test -x $AS_FOR_TARGET; then
1829 gcc_cv_as="$AS_FOR_TARGET"
1831 AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET)
1834 ORIGINAL_AS_FOR_TARGET=$gcc_cv_as
1835 AC_SUBST(ORIGINAL_AS_FOR_TARGET)
1837 AC_MSG_CHECKING(what assembler to use)
1838 if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then
1839 # Single tree build which includes gas. We want to prefer it
1840 # over whatever linker top-level may have detected, since
1841 # we'll use what we're building after installation anyway.
1842 AC_MSG_RESULT(newly built gas)
1844 _gcc_COMPUTE_GAS_VERSION
1845 in_tree_gas_is_elf=no
1846 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1847 || (grep 'obj_format = multi' ../gas/Makefile \
1848 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1850 in_tree_gas_is_elf=yes
1853 AC_MSG_RESULT($gcc_cv_as)
1857 # Identify the linker which will work hand-in-glove with the newly
1858 # built GCC, so that we can examine its features. This is the linker
1859 # which will be driven by the driver program.
1861 # If build != host, and we aren't building gas in-tree, we identify a
1862 # build->target linker and hope that it will have the same features
1863 # as the host->target linker we'll be using.
1864 gcc_cv_gld_major_version=
1865 gcc_cv_gld_minor_version=
1866 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1867 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1869 AS_VAR_SET_IF(gcc_cv_ld,, [
1870 if test -x "$DEFAULT_LINKER"; then
1871 gcc_cv_ld="$DEFAULT_LINKER"
1872 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1873 && test -f ../ld/Makefile \
1874 && test x$build = x$host; then
1875 gcc_cv_ld=../ld/ld-new$build_exeext
1876 elif test -x collect-ld$build_exeext; then
1877 # Build using linker in the current directory.
1878 gcc_cv_ld=./collect-ld$build_exeext
1879 elif test -x $LD_FOR_TARGET; then
1880 gcc_cv_ld="$LD_FOR_TARGET"
1882 AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET)
1885 ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
1886 AC_SUBST(ORIGINAL_LD_FOR_TARGET)
1888 AC_MSG_CHECKING(what linker to use)
1889 if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then
1890 # Single tree build which includes ld. We want to prefer it
1891 # over whatever linker top-level may have detected, since
1892 # we'll use what we're building after installation anyway.
1893 AC_MSG_RESULT(newly built ld)
1895 in_tree_ld_is_elf=no
1896 if (grep 'EMUL = .*elf' ../ld/Makefile \
1897 || grep 'EMUL = .*linux' ../ld/Makefile \
1898 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1899 in_tree_ld_is_elf=yes
1901 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
1904 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1905 if test x$gcc_cv_gld_version != x; then
1909 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1910 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1913 AC_MSG_RESULT($gcc_cv_ld)
1917 # Figure out what nm we will be using.
1918 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1919 AS_VAR_SET_IF(gcc_cv_nm,, [
1920 if test -f $gcc_cv_binutils_srcdir/configure.in \
1921 && test -f ../binutils/Makefile; then
1922 gcc_cv_nm=../binutils/nm-new$build_exeext
1923 elif test -x nm$build_exeext; then
1924 gcc_cv_nm=./nm$build_exeext
1925 elif test -x $NM_FOR_TARGET; then
1926 gcc_cv_nm="$NM_FOR_TARGET"
1928 AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET)
1931 AC_MSG_CHECKING(what nm to use)
1932 if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then
1933 # Single tree build which includes binutils.
1934 AC_MSG_RESULT(newly built nm)
1937 AC_MSG_RESULT($gcc_cv_nm)
1941 ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm
1942 AC_SUBST(ORIGINAL_NM_FOR_TARGET)
1944 # Figure out what objdump we will be using.
1945 AS_VAR_SET_IF(gcc_cv_objdump,, [
1946 if test -f $gcc_cv_binutils_srcdir/configure.in \
1947 && test -f ../binutils/Makefile; then
1948 # Single tree build which includes binutils.
1949 gcc_cv_objdump=../binutils/objdump$build_exeext
1950 elif test -x objdump$build_exeext; then
1951 gcc_cv_objdump=./objdump$build_exeext
1952 elif test -x $OBJDUMP_FOR_TARGET; then
1953 gcc_cv_objdump="$OBJDUMP_FOR_TARGET"
1955 AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET)
1958 AC_MSG_CHECKING(what objdump to use)
1959 if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then
1960 # Single tree build which includes binutils.
1961 AC_MSG_RESULT(newly built objdump)
1962 elif test x$gcc_cv_objdump = x; then
1963 AC_MSG_RESULT(not found)
1965 AC_MSG_RESULT($gcc_cv_objdump)
1968 # Figure out what assembler alignment features are present.
1969 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1973 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1974 [Define if your assembler supports .balign and .p2align.])])
1976 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1979 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1980 [Define if your assembler supports specifying the maximum number
1981 of bytes to skip when using the GAS .p2align command.])])
1983 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1985 [conftest_label1: .word 0
1987 conftest_label2: .word 0
1989 [if test x$gcc_cv_nm != x; then
1990 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1991 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1992 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1994 else gcc_cv_as_subsection_m1=yes
1996 rm -f conftest.nm1 conftest.nm2
1998 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1999 [Define if your assembler supports .subsection and .subsection -1 starts
2000 emitting at the beginning of your section.])])
2002 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2005 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2007 gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref,
2009 [ .weakref foobar, barfnot],,
2010 [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])])
2012 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
2015 .NSUBSPA $CODE$,COMDAT],,
2016 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
2018 # .hidden needs to be supported in both the assembler and the linker,
2019 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2020 # This is irritatingly difficult to feature test for; we have to check the
2021 # date string after the version number. If we've got an in-tree
2022 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2024 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2025 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2030 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2031 [if test $in_tree_ld = yes ; then
2033 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2034 && test $in_tree_ld_is_elf = yes; then
2035 gcc_cv_ld_hidden=yes
2038 gcc_cv_ld_hidden=yes
2039 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2040 if echo "$ld_ver" | grep GNU > /dev/null; then
2042 ld_vers=`echo $ld_ver | sed -n \
2043 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2044 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2045 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2046 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2047 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2048 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2049 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2050 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2051 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2052 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2053 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2054 if test 0"$ld_date" -lt 20020404; then
2055 if test -n "$ld_date"; then
2056 # If there was date string, but was earlier than 2002-04-04, fail
2058 elif test -z "$ld_vers"; then
2059 # If there was no date string nor ld version number, something is wrong
2062 test -z "$ld_vers_patch" && ld_vers_patch=0
2063 if test "$ld_vers_major" -lt 2; then
2065 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2066 gcc_cv_ld_hidden="no"
2067 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2075 hppa64*-*-hpux* | ia64*-*-hpux*)
2076 gcc_cv_ld_hidden=yes
2084 libgcc_visibility=no
2085 AC_SUBST(libgcc_visibility)
2086 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
2087 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2088 libgcc_visibility=yes
2089 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2090 [Define if your assembler and linker support .hidden.])
2093 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2094 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2102 [# GAS versions before 2.11 do not support uleb128,
2103 # despite appearing to.
2104 # ??? There exists an elf-specific test that will crash
2105 # the assembler. Perhaps it's better to figure out whether
2106 # arbitrary sections are supported and try the test.
2107 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2108 if echo "$as_ver" | grep GNU > /dev/null; then
2110 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2111 as_major=`echo $as_ver | sed 's/\..*//'`
2112 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2114 if test $as_major -eq 2 && test $as_minor -lt 11
2116 else gcc_cv_as_leb128=yes
2119 [AC_DEFINE(HAVE_AS_LEB128, 1,
2120 [Define if your assembler supports .sleb128 and .uleb128.])])
2122 # GAS versions up to and including 2.11.0 may mis-optimize
2124 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2132 .section .eh_frame,"aw",@progbits
2134 .4byte .LECIE1-.LSCIE1
2148 .4byte .LEFDE1-.LASFDE1
2150 .4byte .LASFDE1-__FRAME_BEGIN__
2158 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2159 cat > conftest.lit <<EOF
2160 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2161 0010 01000000 12000000 18000000 00000000 ................
2162 0020 08000000 04080000 0044 .........D @&t@
2164 cat > conftest.big <<EOF
2165 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2166 0010 00000001 00000012 00000018 00000000 ................
2167 0020 00000008 04000000 0844 .........D @&t@
2169 # If the assembler didn't choke, and we can objdump,
2170 # and we got the correct data, then succeed.
2171 if test x$gcc_cv_objdump != x \
2172 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2173 | tail -3 > conftest.got \
2174 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2175 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2177 gcc_cv_as_eh_frame=yes
2178 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2179 gcc_cv_as_eh_frame=buggy
2181 # Uh oh, what do we do now?
2182 gcc_cv_as_eh_frame=no
2185 if test $gcc_cv_as_eh_frame = buggy; then
2186 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2187 [Define if your assembler mis-optimizes .eh_frame data.])
2190 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2191 [elf,2,12,0], [--fatal-warnings],
2192 [.section .rodata.str, "aMS", @progbits, 1])
2193 if test $gcc_cv_as_shf_merge = no; then
2194 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2195 [elf,2,12,0], [--fatal-warnings],
2196 [.section .rodata.str, "aMS", %progbits, 1])
2198 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2199 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2200 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2202 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2203 [elf,2,16,0], [--fatal-warnings],
2204 [.section .text,"axG",@progbits,.foo,comdat])
2205 if test $gcc_cv_as_comdat_group = yes; then
2206 gcc_cv_as_comdat_group_percent=no
2208 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2209 [elf,2,16,0], [--fatal-warnings],
2210 [.section .text,"axG",%progbits,.foo,comdat])
2212 if test $in_tree_ld != yes && test x"$ld_vers" != x; then
2214 if test 0"$ld_date" -lt 20050308; then
2215 if test -n "$ld_date"; then
2216 # If there was date string, but was earlier than 2005-03-08, fail
2218 elif test "$ld_vers_major" -lt 2; then
2220 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
2225 # assume linkers other than GNU ld don't support COMDAT group
2228 if test $comdat_group = no; then
2229 gcc_cv_as_comdat_group=no
2230 gcc_cv_as_comdat_group_percent=no
2232 AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
2233 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2234 [Define 0/1 if your assembler and linker support COMDAT groups.])
2236 # Thread-local storage - the check is heavily parametrized.
2245 .section ".tdata","awT",@progbits
2248 ldq $27,__tls_get_addr($29) !literal!1
2249 lda $16,foo($29) !tlsgd!1
2250 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2251 ldq $27,__tls_get_addr($29) !literal!2
2252 lda $16,foo($29) !tlsldm!2
2253 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2254 ldq $1,foo($29) !gotdtprel
2255 ldah $2,foo($29) !dtprelhi
2256 lda $3,foo($2) !dtprello
2257 lda $4,foo($29) !dtprel
2258 ldq $1,foo($29) !gottprel
2259 ldah $2,foo($29) !tprelhi
2260 lda $3,foo($2) !tprello
2261 lda $4,foo($29) !tprel'
2264 tls_as_opt=--fatal-warnings
2268 .section ".tdata","awT",@progbits
2280 .section ".tdata","awT",@progbits
2284 addil LT%foo-$tls_gdidx$,gp
2285 ldo RT%foo-$tls_gdidx$(%r1),%arg0
2288 addil LT%foo-$tls_ldidx$,gp
2290 ldo RT%foo-$tls_ldidx$(%r1),%arg0
2291 addil LR%foo-$tls_dtpoff$,%ret0
2292 ldo RR%foo-$tls_dtpoff$(%r1),%t1
2294 addil LT%foo-$tls_ieoff$,gp
2295 ldw RT%foo-$tls_ieoff$(%r1),%t2
2298 addil LR%foo-$tls_leoff$,%t1
2299 ldo RR%foo-$tls_leoff$(%r1),%t2'
2302 tls_as_opt=--fatal-warnings
2306 .section ".tdata","awT",%progbits
2319 .section ".tdata","awT",@progbits
2323 leal foo@TLSGD(,%ebx,1), %eax
2324 leal foo@TLSLDM(%ebx), %eax
2325 leal foo@DTPOFF(%eax), %edx
2326 movl foo@GOTTPOFF(%ebx), %eax
2327 subl foo@GOTTPOFF(%ebx), %eax
2328 addl foo@GOTNTPOFF(%ebx), %eax
2329 movl foo@INDNTPOFF, %eax
2330 movl $foo@TPOFF, %eax
2331 subl $foo@TPOFF, %eax
2332 leal foo@NTPOFF(%ecx), %eax'
2335 tls_as_opt=--fatal-warnings
2339 .section ".tdata","awT",@progbits
2343 leaq foo@TLSGD(%rip), %rdi
2344 leaq foo@TLSLD(%rip), %rdi
2345 leaq foo@DTPOFF(%rax), %rdx
2346 movq foo@GOTTPOFF(%rip), %rax
2347 movq $foo@TPOFF, %rax'
2350 tls_as_opt=--fatal-warnings
2354 .section ".tdata","awT",@progbits
2357 addl r16 = @ltoff(@dtpmod(foo#)), gp
2358 addl r17 = @ltoff(@dtprel(foo#)), gp
2359 addl r18 = @ltoff(@tprel(foo#)), gp
2360 addl r19 = @dtprel(foo#), gp
2361 adds r21 = @dtprel(foo#), r13
2362 movl r23 = @dtprel(foo#)
2363 addl r20 = @tprel(foo#), gp
2364 adds r22 = @tprel(foo#), r13
2365 movl r24 = @tprel(foo#)'
2368 tls_as_opt=--fatal-warnings
2372 .section .tdata,"awT",@progbits
2376 addiu $4, $28, %tlsgd(x)
2377 addiu $4, $28, %tlsldm(x)
2378 lui $4, %dtprel_hi(x)
2379 addiu $4, $4, %dtprel_lo(x)
2380 lw $4, %gottprel(x)($28)
2381 lui $4, %tprel_hi(x)
2382 addiu $4, $4, %tprel_lo(x)'
2385 tls_as_opt='-32 --fatal-warnings'
2389 .section ".tdata","awT",@progbits
2397 addi 3,31,ld0@got@tlsgd
2399 addi 3,31,x1@got@tlsld
2402 addis 9,3,x2@dtprel@ha
2403 addi 9,9,x2@dtprel@l
2404 lwz 9,x3@got@tprel(31)
2407 addis 9,2,x2@tprel@ha
2408 addi 9,9,x2@tprel@l'
2411 tls_as_opt="-a32 --fatal-warnings"
2415 .section ".tdata","awT",@progbits
2423 addi 3,2,ld0@got@tlsgd
2429 addi 3,2,x1@got@tlsld
2435 addis 9,3,x2@dtprel@ha
2436 addi 9,9,x2@dtprel@l
2439 ld 9,x3@got@dtprel(2)
2445 tls_as_opt="-a64 --fatal-warnings"
2449 .section ".tdata","awT",@progbits
2458 l %r1,foo@GOTNTPOFF(%r12)
2459 l %r1,0(%r1):tls_load:foo
2460 bas %r14,0(%r1,%r13):tls_gdcall:foo
2461 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2464 tls_as_opt="-m31 --fatal-warnings"
2468 .section ".tdata","awT",@progbits
2476 lg %r1,foo@GOTNTPOFF(%r12)
2477 larl %r1,foo@INDNTPOFF
2478 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2479 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2482 tls_as_opt="-m64 -Aesame --fatal-warnings"
2484 sh-*-* | sh[34]-*-*)
2486 .section ".tdata","awT",@progbits
2496 tls_as_opt=--fatal-warnings
2500 sparc*-sun-solaris2.[56789]*)
2501 # TLS was introduced in the Solaris 9 4/04 release but
2502 # we do not enable it by default on Solaris 9 either.
2503 if test "x$enable_tls" = xyes ; then
2509 sparc*-sun-solaris2.*)
2516 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2518 .section ".tdata",#alloc,#write,#tls
2521 sethi %tgd_hi22(foo), %o0
2522 add %o0, %tgd_lo10(foo), %o1
2523 add %l7, %o1, %o0, %tgd_add(foo)
2524 call __tls_get_addr, %tgd_call(foo)
2525 sethi %tldm_hi22(foo), %l1
2526 add %l1, %tldm_lo10(foo), %l2
2527 add %l7, %l2, %o0, %tldm_add(foo)
2528 call __tls_get_addr, %tldm_call(foo)
2529 sethi %tldo_hix22(foo), %l3
2530 xor %l3, %tldo_lox10(foo), %l4
2531 add %o0, %l4, %l5, %tldo_add(foo)
2532 sethi %tie_hi22(foo), %o3
2533 add %o3, %tie_lo10(foo), %o3
2534 ld [%l7 + %o3], %o2, %tie_ld(foo)
2535 add %g7, %o2, %o4, %tie_add(foo)
2536 sethi %tle_hix22(foo), %l1
2537 xor %l1, %tle_lox10(foo), %o5
2538 ld [%g7 + %o5], %o1'
2543 .section ".tdata","awT",@progbits
2546 sethi %tgd_hi22(foo), %o0
2547 add %o0, %tgd_lo10(foo), %o1
2548 add %l7, %o1, %o0, %tgd_add(foo)
2549 call __tls_get_addr, %tgd_call(foo)
2550 sethi %tldm_hi22(foo), %l1
2551 add %l1, %tldm_lo10(foo), %l2
2552 add %l7, %l2, %o0, %tldm_add(foo)
2553 call __tls_get_addr, %tldm_call(foo)
2554 sethi %tldo_hix22(foo), %l3
2555 xor %l3, %tldo_lox10(foo), %l4
2556 add %o0, %l4, %l5, %tldo_add(foo)
2557 sethi %tie_hi22(foo), %o3
2558 add %o3, %tie_lo10(foo), %o3
2559 ld [%l7 + %o3], %o2, %tie_ld(foo)
2560 add %g7, %o2, %o4, %tie_add(foo)
2561 sethi %tle_hix22(foo), %l1
2562 xor %l1, %tle_lox10(foo), %o5
2563 ld [%g7 + %o5], %o1'
2566 tls_as_opt="-32 --fatal-warnings"
2572 if test "x$enable_tls" = xno ; then
2573 : # TLS explicitly disabled.
2574 elif test "x$enable_tls" = xyes ; then
2575 set_have_as_tls=yes # TLS explicitly enabled.
2576 elif test -z "$tls_first_major"; then
2577 : # If we don't have a check, assume no support.
2579 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2580 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2581 [set_have_as_tls=yes])
2583 if test $set_have_as_tls = yes ; then
2584 AC_DEFINE(HAVE_AS_TLS, 1,
2585 [Define if your assembler supports thread-local storage.])
2588 # Target-specific assembler checks.
2590 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2591 gcc_cv_ld_static_dynamic=no
2592 if test $in_tree_ld = yes ; then
2593 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2594 gcc_cv_ld_static_dynamic=yes
2596 elif test x$gcc_cv_ld != x; then
2597 # Check if linker supports -Bstatic/-Bdynamic option
2598 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2599 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2600 gcc_cv_ld_static_dynamic=yes
2603 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2604 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2605 [Define if your linker supports -Bstatic/-Bdynamic option.])
2607 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2609 if test x"$demangler_in_ld" = xyes; then
2610 AC_MSG_CHECKING(linker --demangle support)
2611 gcc_cv_ld_demangle=no
2612 if test $in_tree_ld = yes; then
2613 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2614 gcc_cv_ld_demangle=yes
2616 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2617 # Check if the GNU linker supports --demangle option
2618 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2619 gcc_cv_ld_demangle=yes
2622 if test x"$gcc_cv_ld_demangle" = xyes; then
2623 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2624 [Define if your linker supports --demangle option.])
2626 AC_MSG_RESULT($gcc_cv_ld_demangle)
2630 # All TARGET_ABI_OSF targets.
2631 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2632 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2633 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2636 extbl $3, $2, $3 !lituse_bytoff!1
2637 ldq $2, a($29) !literal!1
2638 ldq $4, b($29) !literal!2
2639 ldq_u $3, 0($2) !lituse_base!1
2640 ldq $27, f($29) !literal!5
2641 jsr $26, ($27), f !lituse_jsr!5
2642 ldah $29, 0($26) !gpdisp!3
2643 lda $0, c($29) !gprel
2644 ldah $1, d($29) !gprelhigh
2645 lda $1, d($1) !gprellow
2646 lda $29, 0($29) !gpdisp!3],,
2647 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2648 [Define if your assembler supports explicit relocations.])])
2649 gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
2650 gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
2653 ldq $27, a($29) !literal!1
2654 jsr $26, ($27), a !lituse_jsrdirect!1],,
2655 [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
2656 [Define if your assembler supports the lituse_jsrdirect relocation.])])
2660 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2661 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2662 [-no-mul-bug-abort], [.text],,
2663 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2664 [Define if your assembler supports the -no-mul-bug-abort option.])])
2668 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2669 [.register %g2, #scratch],,
2670 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2671 [Define if your assembler supports .register.])])
2673 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2675 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2676 [Define if your assembler supports -relax option.])])
2678 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2679 gcc_cv_as_sparc_ua_pcrel,,
2687 .uaword %r_disp32(foo)],
2688 [if test x$gcc_cv_ld != x \
2689 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2690 gcc_cv_as_sparc_ua_pcrel=yes
2693 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2694 [Define if your assembler and linker support unaligned PC relative relocs.])
2696 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2697 gcc_cv_as_sparc_ua_pcrel_hidden,,
2702 .uaword %r_disp32(foo)
2703 .byte 0x32, 0x33, 0x34
2708 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2709 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2710 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2711 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2712 if $gcc_cv_objdump -R conftest 2> /dev/null \
2713 | grep 'DISP32' > /dev/null 2>&1; then
2716 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2720 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2721 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2722 ]) # unaligned pcrel relocs
2724 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2725 gcc_cv_as_sparc_offsetable_lo10,,
2728 or %g1, %lo(ab) + 12, %g1
2729 or %g1, %lo(ab + 12), %g1],
2730 [if test x$gcc_cv_objdump != x \
2731 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2732 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2733 gcc_cv_as_sparc_offsetable_lo10=yes
2735 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2736 [Define if your assembler supports offsetable %lo().])])
2740 i[34567]86-*-* | x86_64-*-*)
2743 cygwin* | pe | mingw32*)
2744 # Used for DWARF 2 in PE
2745 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2746 gcc_cv_as_ix86_pe_secrel32,
2752 [if test x$gcc_cv_ld != x \
2753 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2754 gcc_cv_as_ix86_pe_secrel32=yes
2757 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2758 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2762 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2763 gcc_cv_as_ix86_filds_fists,
2764 [2,9,0],, [filds mem; fists mem],,
2765 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2766 [Define if your assembler uses the new HImode fild and fist notation.])])
2768 gcc_GAS_CHECK_FEATURE([cmov syntax],
2769 gcc_cv_as_ix86_cmov_sun_syntax,,,
2770 [cmovl.l %edx, %eax],,
2771 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2772 [Define if your assembler supports the Sun syntax for cmov.])])
2774 # This one is used unconditionally by i386.[ch]; it is to be defined
2775 # to 1 if the feature is present, 0 otherwise.
2776 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2777 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2783 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2784 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2785 [Define true if the assembler supports '.long foo@GOTOFF'.])
2789 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2790 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2792 addl r15 = @ltoffx(x#), gp
2794 ld8.mov r16 = [[r15]], x#],,
2795 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2796 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2802 *-*-aix*) conftest_s=' .machine "pwr5"
2806 gcc_GAS_CHECK_FEATURE([.machine directive support],
2807 gcc_cv_as_machine_directive,,,
2808 [ .machine ppc7400])
2809 if test x$gcc_cv_as_machine_directive != xyes; then
2810 echo "*** This target requires an assembler supporting \".machine\"" >&2
2811 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2812 test x$build = x$target && exit 1
2816 *) conftest_s=' .machine power4
2821 gcc_GAS_CHECK_FEATURE([mfcr field support],
2822 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2824 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2825 [Define if your assembler supports mfcr field.])])
2828 *-*-aix*) conftest_s=' .machine "pwr5"
2831 *) conftest_s=' .machine power5
2836 gcc_GAS_CHECK_FEATURE([popcntb support],
2837 gcc_cv_as_powerpc_popcntb, [2,17,0],,
2839 [AC_DEFINE(HAVE_AS_POPCNTB, 1,
2840 [Define if your assembler supports popcntb field.])])
2843 *-*-aix*) conftest_s=' .machine "pwr5x"
2846 *) conftest_s=' .machine power5
2851 gcc_GAS_CHECK_FEATURE([fp round support],
2852 gcc_cv_as_powerpc_fprnd, [2,17,0],,
2854 [AC_DEFINE(HAVE_AS_FPRND, 1,
2855 [Define if your assembler supports fprnd.])])
2858 *-*-aix*) conftest_s=' .csect .text[[PR]]
2860 addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
2864 addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
2865 *) conftest_s=' .text
2867 addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
2870 gcc_GAS_CHECK_FEATURE([rel16 relocs],
2871 gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
2873 [AC_DEFINE(HAVE_AS_REL16, 1,
2874 [Define if your assembler supports R_PPC_REL16 relocs.])])
2878 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2879 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2880 [ lw $4,%gp_rel(foo)($4)],,
2881 [if test x$target_cpu_default = x
2882 then target_cpu_default=MASK_EXPLICIT_RELOCS
2883 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2888 # Mips and HP-UX need the GNU assembler.
2889 # Linux on IA64 might be able to use the Intel assembler.
2892 mips*-*-* | *-*-hpux* )
2893 if test x$gas_flag = xyes \
2894 || test x"$host" != x"$build" \
2895 || test ! -x "$gcc_cv_as" \
2896 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2899 echo "*** This configuration requires the GNU assembler" >&2
2905 # ??? Not all targets support dwarf2 debug_line, even within a version
2906 # of gas. Moreover, we need to emit a valid instruction to trigger any
2907 # info to the output file. So, as supported targets are added to gas 2.11,
2908 # add some instruction here to (also) show we expect this might work.
2909 # ??? Once 2.11 is released, probably need to add first known working
2910 # version to the per-target configury.
2912 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2913 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2914 | xstormy16*-*-* | cris-*-* | xtensa-*-* | bfin-*-*)
2917 ia64*-*-* | s390*-*-*)
2924 if test x"$insn" != x; then
2926 .file 1 \"conftest.s\"
2929 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2930 gcc_cv_as_dwarf2_debug_line,
2931 [elf,2,11,0],, [$conftest_s],
2932 [if test x$gcc_cv_objdump != x \
2933 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
2934 | grep debug_line > /dev/null 2>&1; then
2935 gcc_cv_as_dwarf2_debug_line=yes
2938 # The .debug_line file table must be in the exact order that
2939 # we specified the files, since these indices are also used
2940 # by DW_AT_decl_file. Approximate this test by testing if
2941 # the assembler bitches if the same index is assigned twice.
2942 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2943 gcc_cv_as_dwarf2_file_buggy,,,
2947 if test $gcc_cv_as_dwarf2_debug_line = yes \
2948 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2949 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2950 [Define if your assembler supports dwarf2 .file/.loc directives,
2951 and preserves file table indices exactly as given.])
2954 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2955 gcc_cv_as_gdwarf2_flag,
2956 [elf,2,11,0], [--gdwarf2], [$insn],,
2957 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2958 [Define if your assembler supports the --gdwarf2 option.])])
2960 gcc_GAS_CHECK_FEATURE([--gstabs option],
2961 gcc_cv_as_gstabs_flag,
2962 [elf,2,11,0], [--gstabs], [$insn],
2963 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2964 # and warns about it, but still exits successfully. So check for
2966 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2968 else gcc_cv_as_gstabs_flag=yes
2970 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2971 [Define if your assembler supports the --gstabs option.])])
2974 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2975 gcc_cv_ld_ro_rw_mix=unknown
2976 if test $in_tree_ld = yes ; then
2977 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2978 && test $in_tree_ld_is_elf = yes; then
2979 gcc_cv_ld_ro_rw_mix=read-write
2981 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2982 echo '.section myfoosect, "a"' > conftest1.s
2983 echo '.section myfoosect, "aw"' > conftest2.s
2984 echo '.byte 1' >> conftest2.s
2985 echo '.section myfoosect, "a"' > conftest3.s
2986 echo '.byte 0' >> conftest3.s
2987 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2988 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2989 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2990 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2991 conftest2.o conftest3.o > /dev/null 2>&1; then
2992 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2993 | sed -e '/myfoosect/!d' -e N`
2994 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2995 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2996 gcc_cv_ld_ro_rw_mix=read-only
2998 gcc_cv_ld_ro_rw_mix=read-write
3003 rm -f conftest.* conftest[123].*
3006 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
3007 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
3008 [Define if your linker links a mix of read-only
3009 and read-write sections into a read-write section.])
3011 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
3013 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
3014 gcc_cv_ld_eh_frame_hdr=no
3015 if test $in_tree_ld = yes ; then
3016 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
3017 && test $in_tree_ld_is_elf = yes; then
3018 gcc_cv_ld_eh_frame_hdr=yes
3020 elif test x$gcc_cv_ld != x; then
3021 # Check if linker supports --eh-frame-hdr option
3022 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
3023 gcc_cv_ld_eh_frame_hdr=yes
3026 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
3027 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
3028 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
3029 [Define if your linker supports --eh-frame-hdr option.])
3031 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
3033 AC_MSG_CHECKING(linker position independent executable support)
3035 if test $in_tree_ld = yes ; then
3036 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
3037 && test $in_tree_ld_is_elf = yes; then
3040 elif test x$gcc_cv_ld != x; then
3041 # Check if linker supports -pie option
3042 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
3046 if test x"$gcc_cv_ld_pie" = xyes; then
3047 AC_DEFINE(HAVE_LD_PIE, 1,
3048 [Define if your linker supports -pie option.])
3050 AC_MSG_RESULT($gcc_cv_ld_pie)
3056 AC_CACHE_CHECK(linker --as-needed support,
3057 gcc_cv_ld_as_needed,
3058 [gcc_cv_ld_as_needed=no
3059 if test $in_tree_ld = yes ; then
3060 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
3061 && test $in_tree_ld_is_elf = yes; then
3062 gcc_cv_ld_as_needed=yes
3064 elif test x$gcc_cv_ld != x; then
3065 # Check if linker supports --as-needed and --no-as-needed options
3066 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
3067 gcc_cv_ld_as_needed=yes
3071 if test x"$gcc_cv_ld_as_needed" = xyes; then
3072 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
3073 [Define if your linker supports --as-needed and --no-as-needed options.])
3076 case "$target:$tm_file" in
3077 powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
3078 AC_CACHE_CHECK(linker support for omitting dot symbols,
3079 gcc_cv_ld_no_dot_syms,
3080 [gcc_cv_ld_no_dot_syms=no
3081 if test $in_tree_ld = yes ; then
3082 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
3083 gcc_cv_ld_no_dot_syms=yes
3085 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
3086 cat > conftest1.s <<EOF
3090 cat > conftest2.s <<EOF
3091 .section ".opd","aw"
3096 .quad .LEfoo,.TOC.@tocbase,0
3102 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
3103 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
3104 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
3105 gcc_cv_ld_no_dot_syms=yes
3107 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3110 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3111 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3112 [Define if your PowerPC64 linker only needs function descriptor syms.])
3117 AC_CACHE_CHECK(linker --sysroot support,
3119 [gcc_cv_ld_sysroot=no
3120 if test $in_tree_ld = yes ; then
3121 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
3122 gcc_cv_ld_sysroot=yes
3124 elif test x$gcc_cv_ld != x; then
3125 if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
3126 gcc_cv_ld_sysroot=yes
3129 if test x"$gcc_cv_ld_sysroot" = xyes; then
3130 AC_DEFINE(HAVE_LD_SYSROOT, 1,
3131 [Define if your linker supports --sysroot.])
3134 if test x$with_sysroot = x && test x$host = x$target \
3135 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
3136 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3137 [Define to PREFIX/include if cpp should also search that directory.])
3140 # Test for stack protector support in target C library.
3143 AC_CACHE_CHECK(__stack_chk_fail in target GNU C library,
3144 gcc_cv_libc_provides_ssp,
3145 [gcc_cv_libc_provides_ssp=no
3146 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3147 if test "x$with_sysroot" = x; then
3148 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3149 elif test "x$with_sysroot" = xyes; then
3150 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3152 glibc_header_dir="${with_sysroot}/usr/include"
3155 glibc_header_dir=/usr/include
3157 # glibc 2.4 and later provides __stack_chk_fail and
3158 # either __stack_chk_guard, or TLS access to stack guard canary.
3159 if test -f $glibc_header_dir/features.h \
3160 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
3161 $glibc_header_dir/features.h > /dev/null; then
3162 if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
3163 $glibc_header_dir/features.h > /dev/null; then
3164 gcc_cv_libc_provides_ssp=yes
3165 elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \
3166 $glibc_header_dir/features.h > /dev/null \
3167 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
3168 $glibc_header_dir/features.h > /dev/null; then
3169 gcc_cv_libc_provides_ssp=yes
3172 *) gcc_cv_libc_provides_ssp=no ;;
3174 if test x$gcc_cv_libc_provides_ssp = xyes; then
3175 AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
3176 [Define if your target C library provides stack protector support])
3179 # Check if TFmode long double should be used by default or not.
3180 # Some glibc targets used DFmode long double, but with glibc 2.4
3181 # and later they can use TFmode.
3183 powerpc*-*-*gnu* | \
3187 AC_ARG_WITH(long-double-128,
3188 [ --with-long-double-128 Use 128-bit long double by default.],
3189 gcc_cv_target_ldbl128="$with_long_double_128",
3190 [gcc_cv_target_ldbl128=no
3191 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3192 if test "x$with_sysroot" = x; then
3193 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3194 elif test "x$with_sysroot" = xyes; then
3195 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3197 glibc_header_dir="${with_sysroot}/usr/include"
3200 glibc_header_dir=/usr/include
3202 grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \
3203 $glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \
3204 && gcc_cv_target_ldbl128=yes])
3207 if test x$gcc_cv_target_ldbl128 = xyes; then
3208 AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1,
3209 [Define if TFmode long double should be the default])
3212 # Find out what GC implementation we want, or may, use.
3214 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3222 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3225 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3230 echo "Using $GGC for garbage collection."
3232 # Use the system's zlib library.
3234 zlibinc="-I\$(srcdir)/../zlib"
3235 AC_ARG_WITH(system-zlib,
3236 [ --with-system-zlib use installed libz],
3243 dnl Very limited version of automake's enable-maintainer-mode
3245 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3246 dnl maintainer-mode is disabled by default
3247 AC_ARG_ENABLE(maintainer-mode,
3248 [ --enable-maintainer-mode
3249 enable make rules and dependencies not useful
3250 (and sometimes confusing) to the casual installer],
3251 maintainer_mode=$enableval,
3254 AC_MSG_RESULT($maintainer_mode)
3256 if test "$maintainer_mode" = "yes"; then
3267 # Make empty files to contain the specs and options for each language.
3268 # Then add #include lines to for a compiler that has specs and/or options.
3274 # These (without "all_") are set in each config-lang.in.
3275 # `language' must be a single word so is spelled singularly.
3280 all_outputs='Makefile gccbug mklibgcc libada-mk'
3281 # List of language makefile fragments.
3283 # List of language subdirectory makefiles. Deprecated.
3285 # Files for gengtype
3286 all_gtfiles="$target_gtfiles"
3287 # Files for gengtype with language
3288 all_gtfiles_files_langs=
3289 all_gtfiles_files_files=
3291 # These are the languages that are set in --enable-languages,
3292 # and are available in the GCC tree.
3293 all_selected_languages=
3295 # Add the language fragments.
3296 # Languages are added via two mechanisms. Some information must be
3297 # recorded in makefile variables, these are defined in config-lang.in.
3298 # We accumulate them and plug them into the main Makefile.
3299 # The other mechanism is a set of hooks for each of the main targets
3300 # like `clean', `install', etc.
3302 language_hooks="Make-hooks"
3304 for lang in ${srcdir}/*/config-lang.in
3307 # The odd quoting in the next line works around
3308 # an apparent bug in bash 1.12 on linux.
3310 ${srcdir}/[*]/config-lang.in)
3313 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
3314 if test "x$lang_alias" = x
3316 echo "$lang doesn't set \$language." 1>&2
3319 subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
3320 subdirs="$subdirs $subdir"
3321 case ",$enable_languages," in
3323 all_selected_languages="$all_selected_languages $lang_alias"
3324 if test -f $srcdir/$subdir/lang-specs.h; then
3325 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3331 if test -f $srcdir/$subdir/lang.opt; then
3332 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3334 if test -f $srcdir/$subdir/$subdir-tree.def; then
3335 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3344 . ${srcdir}/$subdir/config-lang.in
3345 if test "x$language" = x
3347 echo "${srcdir}/$subdir/config-lang.in doesn't set \$language." 1>&2
3350 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$subdir/Make-lang.in"
3351 if test -f ${srcdir}/$subdir/Makefile.in
3352 then all_lang_makefiles="$subdir/Makefile"
3354 all_languages="$all_languages $language"
3355 if test "x$boot_language" = xyes
3357 all_boot_languages="$all_boot_languages $language"
3359 all_compilers="$all_compilers $compilers"
3360 all_stagestuff="$all_stagestuff $stagestuff"
3361 all_outputs="$all_outputs $outputs"
3362 all_gtfiles="$all_gtfiles $gtfiles"
3365 all_gtfiles_files_langs="$all_gtfiles_files_langs ${subdir} "
3366 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3372 # Pick up gtfiles for c
3375 . ${srcdir}/c-config-lang.in
3376 all_gtfiles="$all_gtfiles $gtfiles"
3379 all_gtfiles_files_langs="$all_gtfiles_files_langs ${subdir} "
3380 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3384 for language in $all_selected_languages
3386 check_languages="$check_languages check-$language"
3389 # We link each language in with a set of hooks, reached indirectly via
3390 # lang.${target}. Only do so for selected languages.
3394 target_list="all.cross start.encap rest.encap tags \
3395 install-common install-man install-info dvi html \
3396 uninstall info man srcextra srcman srcinfo \
3397 mostlyclean clean distclean maintainer-clean \
3398 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3400 for t in $target_list
3403 for lang in $all_selected_languages
3407 echo "lang.$t: $x" >> Make-hooks
3416 echo "dir ." > .gdbinit
3417 echo "dir ${srcdir}" >> .gdbinit
3418 if test x$gdb_needs_out_file_path = xyes
3420 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3422 if test "x$subdirs" != x; then
3425 echo "dir ${srcdir}/$s" >> .gdbinit
3428 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3430 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3431 # absolute path for gcc_tooldir based on inserting the number of up-directory
3432 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3433 # $(libsubdir)/@(unlibsubdir) based path.
3434 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3435 # make and thus we'd get different behavior depending on where we built the
3437 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3438 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3440 changequote(<<, >>)dnl
3441 # An explanation of the sed strings:
3442 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3443 # -e 's|/$||' match a trailing forward slash and eliminates it
3444 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3445 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3447 # (*) Note this pattern overwrites the first character of the string
3448 # with a forward slash if one is not already present. This is not a
3449 # problem because the exact names of the sub-directories concerned is
3450 # unimportant, just the number of them matters.
3452 # The practical upshot of these patterns is like this:
3454 # prefix exec_prefix result
3455 # ------ ----------- ------
3457 # /foo/ /foo/bar ../
3458 # /foo /foo/bar/ ../
3459 # /foo/ /foo/bar/ ../
3460 # /foo /foo/bar/ugg ../../
3463 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3464 changequote([, ])dnl
3466 AC_SUBST(gcc_tooldir)
3469 # Find a directory in which to install a shared libgcc.
3471 AC_ARG_ENABLE(version-specific-runtime-libs,
3472 [ --enable-version-specific-runtime-libs
3473 specify that runtime libraries should be
3474 installed in a compiler-specific directory])
3476 AC_ARG_WITH(slibdir,
3477 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3478 slibdir="$with_slibdir",
3479 if test "${enable_version_specific_runtime_libs+set}" = set; then
3480 slibdir='$(libsubdir)'
3481 elif test "$host" != "$target"; then
3482 slibdir='$(build_tooldir)/lib'
3488 objdir=`${PWDCMD-pwd}`
3491 # Substitute configuration variables
3494 AC_SUBST(all_boot_languages)
3495 AC_SUBST(all_compilers)
3496 AC_SUBST(all_gtfiles)
3497 AC_SUBST(all_gtfiles_files_langs)
3498 AC_SUBST(all_gtfiles_files_files)
3499 AC_SUBST(all_lang_makefrags)
3500 AC_SUBST(all_lang_makefiles)
3501 AC_SUBST(all_languages)
3502 AC_SUBST(all_selected_languages)
3503 AC_SUBST(all_stagestuff)
3504 AC_SUBST(build_exeext)
3505 AC_SUBST(build_install_headers_dir)
3506 AC_SUBST(build_xm_file_list)
3507 AC_SUBST(build_xm_include_list)
3508 AC_SUBST(build_xm_defines)
3509 AC_SUBST(check_languages)
3510 AC_SUBST(cc_set_by_configure)
3511 AC_SUBST(quoted_cc_set_by_configure)
3512 AC_SUBST(cpp_install_dir)
3513 AC_SUBST(xmake_file)
3514 AC_SUBST(tmake_file)
3515 AC_SUBST(extra_gcc_objs)
3516 AC_SUBST(extra_headers_list)
3517 AC_SUBST(extra_objs)
3518 AC_SUBST(extra_parts)
3519 AC_SUBST(extra_passes)
3520 AC_SUBST(extra_programs)
3521 AC_SUBST(float_h_file)
3522 AC_SUBST(gcc_config_arguments)
3523 AC_SUBST(gcc_gxx_include_dir)
3524 AC_SUBST(libstdcxx_incdir)
3525 AC_SUBST(host_exeext)
3526 AC_SUBST(host_xm_file_list)
3527 AC_SUBST(host_xm_include_list)
3528 AC_SUBST(host_xm_defines)
3529 AC_SUBST(out_host_hook_obj)
3531 AC_SUBST(lang_opt_files)
3532 AC_SUBST(lang_specs_files)
3533 AC_SUBST(lang_tree_files)
3534 AC_SUBST(local_prefix)
3536 AC_SUBST(objc_boehm_gc)
3538 AC_SUBST(out_object_file)
3539 AC_SUBST(stage_prefix_set_by_configure)
3540 AC_SUBST(quoted_stage_prefix_set_by_configure)
3541 AC_SUBST(thread_file)
3542 AC_SUBST(tm_file_list)
3543 AC_SUBST(tm_include_list)
3544 AC_SUBST(tm_defines)
3545 AC_SUBST(tm_p_file_list)
3546 AC_SUBST(tm_p_include_list)
3547 AC_SUBST(xm_file_list)
3548 AC_SUBST(xm_include_list)
3549 AC_SUBST(xm_defines)
3550 AC_SUBST(c_target_objs)
3551 AC_SUBST(cxx_target_objs)
3552 AC_SUBST(target_cpu_default)
3554 AC_SUBST_FILE(language_hooks)
3557 if test x${build} = x${host} ; then
3558 if test x${host} = x${target} ; then
3559 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3561 echo "Links are now set up to build a cross-compiler" 1>&2
3562 echo " from ${host} to ${target}." 1>&2
3565 if test x${host} = x${target} ; then
3566 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3567 echo " for ${target}." 1>&2
3569 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3570 echo " from ${host} to ${target}." 1>&2
3574 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3575 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3577 # Configure the subdirectories
3578 # AC_CONFIG_SUBDIRS($subdirs)
3580 # Create the Makefile
3581 # and configure language subdirectories
3582 AC_CONFIG_FILES($all_outputs)
3584 AC_CONFIG_COMMANDS([default],
3586 case ${CONFIG_HEADERS} in
3587 *auto-host.h:config.in*)
3590 # Make sure all the subdirs exist.
3591 for d in $subdirs doc build
3593 test -d $d || mkdir $d
3595 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3596 # bootstrapping and the installation procedure can still use
3597 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3598 # FLAGS_TO_PASS has been modified to solve the problem there.
3599 # This is virtually a duplicate of what happens in configure.lang; we do
3600 # an extra check to make sure this only happens if ln -s can be used.
3603 for d in ${subdirs} ; do
3604 STARTDIR=`${PWDCMD-pwd}`
3606 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3609 $LN_S ../$t $t 2>/dev/null
3616 [subdirs='$subdirs'])