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*)
681 AC_MSG_WARN(decimal float is not supported for this target, ignored)
682 enable_decimal_float=no
690 enable_decimal_float=yes
693 enable_decimal_float=no
698 AC_SUBST(enable_decimal_float)
700 dfp=`if test $enable_decimal_float = yes; then echo 1; else echo 0; fi`
701 AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp,
702 [Define to 1 to enable decimal float extension to C.])
705 # Pass with no value to take the default
706 # Pass with a value to specify a thread package
707 AC_ARG_ENABLE(threads,
708 [ --enable-threads enable thread usage for target GCC
709 --enable-threads=LIB use LIB thread package for target GCC],,
713 [ --enable-tls enable or disable generation of tls code
714 overriding the assembler check for tls support],
718 *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls.
719 Valid choices are 'yes' and 'no'.]) ;;
723 AC_ARG_ENABLE(objc-gc,
724 [ --enable-objc-gc enable the use of Boehm's garbage collector with
725 the GNU Objective-C runtime],
726 if test x$enable_objc_gc = xno; then
734 [ --with-dwarf2 force the default debug format to be DWARF 2],
735 dwarf2="$with_dwarf2",
738 AC_ARG_ENABLE(shared,
739 [ --disable-shared don't provide a shared libgcc],
741 case $enable_shared in
745 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
746 for pkg in $enableval; do
747 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
754 ], [enable_shared=yes])
755 AC_SUBST(enable_shared)
757 AC_ARG_WITH(build-sysroot,
758 [ --with-build-sysroot=sysroot
759 use sysroot as the system root during the build])
762 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
764 case ${with_sysroot} in
765 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
766 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
769 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
770 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
772 if test "x$exec_prefix" = xNONE; then
773 if test "x$prefix" = xNONE; then
774 test_prefix=/usr/local
779 test_prefix=$exec_prefix
781 case ${TARGET_SYSTEM_ROOT} in
782 "${test_prefix}"|"${test_prefix}/"*|\
783 '${exec_prefix}'|'${exec_prefix}/'*)
784 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
785 TARGET_SYSTEM_ROOT_DEFINE="$t"
790 TARGET_SYSTEM_ROOT_DEFINE=
791 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
793 AC_SUBST(TARGET_SYSTEM_ROOT)
794 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
795 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
797 # Build with intermodule optimisations
798 AC_ARG_ENABLE(intermodule,
799 [ --enable-intermodule build the compiler in one step],
800 [case ${enable_intermodule} in
801 yes) onestep="-onestep";;
807 # Sanity check enable_languages in case someone does not run the toplevel
808 # configure # script.
809 AC_ARG_ENABLE(languages,
810 [ --enable-languages=LIST specify which front-ends to build],
811 [case ,${enable_languages}, in
813 # go safe -- we cannot be much sure without the toplevel
815 # analysis of which target libs are present and usable
819 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
824 enable_languages=c,${enable_languages}
827 [enable_languages=c])
830 for lang in ${srcdir}/*/config-lang.in
833 # The odd quoting in the next line works around
834 # an apparent bug in bash 1.12 on linux.
836 ${srcdir}/[*]/config-lang.in) ;;
838 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
839 if test "x$lang_alias" = x
841 echo "$lang doesn't set \$language." 1>&2
844 case ",$enable_languages," in
846 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
854 # -------------------------
855 # Checks for other programs
856 # -------------------------
860 # Find some useful tools
862 # We need awk to create options.c and options.h.
863 # Bail out if it's missing.
865 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
873 # By default, the Darwin ranlib will not treat common symbols as
874 # definitions when building the archive table of contents. Other
875 # ranlibs do that; pass an option to the Darwin ranlib that makes
876 # it behave similarly.
882 AC_SUBST(ranlib_flags)
886 # See if cmp has --ignore-initial.
887 gcc_AC_PROG_CMP_IGNORE_INITIAL
889 # See if we have the mktemp command.
890 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
892 MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
894 # See if makeinfo has been installed and is modern enough
895 # that we can use it.
896 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
897 [GNU texinfo.* \([0-9][0-9.]*\)],
899 if test $gcc_cv_prog_makeinfo_modern = no; then
900 MAKEINFO="$MISSING makeinfo"
902 *** Makeinfo is missing or too old.
903 *** Info documentation will not be built.])
910 # Is pod2man recent enough to regenerate manpages?
911 AC_MSG_CHECKING([for recent Pod::Man])
912 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
914 GENERATED_MANPAGES=generated-manpages
919 AC_SUBST(GENERATED_MANPAGES)
922 dnl Don't use AC_PROG_LEX; we insist on flex.
923 dnl LEXLIB is not useful in gcc.
924 AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
927 AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
929 # Binutils are not build modules, unlike bison/flex/makeinfo. So we
930 # check for build == host before using them.
933 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
934 && test -d ../binutils ; then
935 NM='$(objdir)/../binutils/nm-new'
937 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
941 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
942 && test -d ../binutils ; then
943 AR='$(objdir)/../binutils/ar'
945 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
949 # --------------------
950 # Checks for C headers
951 # --------------------
953 AC_MSG_CHECKING(for GNU C library)
954 AC_CACHE_VAL(gcc_cv_glibc,
955 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
956 [[#include <features.h>]], [[
957 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
958 #error Not a GNU C library system
962 AC_MSG_RESULT($gcc_cv_glibc)
963 if test $gcc_cv_glibc = yes; then
964 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
967 # Need to reject headers which give warnings, so that the -Werror bootstrap
968 # works later. *sigh* This needs to come before all header checks.
975 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
976 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
977 sys/resource.h sys/param.h sys/times.h sys/stat.h \
978 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
980 # Check for thread headers.
981 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
982 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
984 # These tests can't be done till we know if we have limits.h.
992 # Stage specific cflags for build.
998 stage1_cflags="-Wa,-J"
1004 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
1005 # sources; use -no-cpp-precomp to get to GNU cpp.
1006 # Apple's GCC has bugs in designated initializer handling, so disable
1008 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
1011 AC_SUBST(stage1_cflags)
1013 # These libraries may be used by collect2.
1014 # We may need a special search path to get them linked.
1015 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
1017 for libs in '' -lld -lmld \
1018 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
1019 '-L/usr/lib/cmplrs/cc3.11 -lmld'
1022 AC_TRY_LINK_FUNC(ldopen,
1023 [gcc_cv_collect2_libs="$libs"; break])
1026 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
1027 case $gcc_cv_collect2_libs in
1029 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
1031 AC_SUBST(COLLECT2_LIBS)
1033 # When building Ada code on Alpha, we need exc_resume which is usually in
1034 # -lexc. So test for it.
1037 AC_SEARCH_LIBS(exc_resume, exc)
1040 AC_SUBST(GNAT_LIBEXC)
1042 # Some systems put ldexp and frexp in libm instead of libc; assume
1043 # they're both in the same place. jcf-dump needs them.
1046 AC_SEARCH_LIBS(ldexp, m)
1051 # Use <inttypes.h> only if it exists,
1052 # doesn't clash with <sys/types.h>, and declares intmax_t.
1053 AC_MSG_CHECKING(for inttypes.h)
1054 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
1055 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1056 [[#include <sys/types.h>
1057 #include <inttypes.h>]],
1058 [[intmax_t i = -1;]])],
1059 [gcc_cv_header_inttypes_h=yes],
1060 [gcc_cv_header_inttypes_h=no])])
1061 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
1062 if test $gcc_cv_header_inttypes_h = yes; then
1063 AC_DEFINE(HAVE_INTTYPES_H, 1,
1064 [Define if you have a working <inttypes.h> header file.])
1067 dnl Disabled until we have a complete test for buggy enum bitfields.
1068 dnl gcc_AC_C_ENUM_BF_UNSIGNED
1070 define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
1071 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
1072 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
1073 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
1074 putchar_unlocked putc_unlocked)
1075 AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
1076 sysconf strsignal getrusage nl_langinfo scandir alphasort \
1077 gettimeofday mbstowcs wcswidth mmap mincore setlocale \
1080 if test x$ac_cv_func_mbstowcs = xyes; then
1081 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
1082 [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
1088 [gcc_cv_func_mbstowcs_works=yes],
1089 [gcc_cv_func_mbstowcs_works=no],
1090 [gcc_cv_func_mbstowcs_works=yes])])
1091 if test x$gcc_cv_func_mbstowcs_works = xyes; then
1092 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
1093 [Define this macro if mbstowcs does not crash when its
1094 first argument is NULL.])
1098 AC_CHECK_TYPE(ssize_t, int)
1100 # Try to determine the array type of the second argument of getgroups
1101 # for the target system (int or gid_t).
1103 if test "${target}" = "${build}"; then
1104 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
1107 # This condition may need some tweaking. It should include all
1108 # targets where the array type of the second argument of getgroups
1109 # is int and the type of gid_t is not equivalent to int.
1110 *-*-sunos* | *-*-ultrix*)
1111 TARGET_GETGROUPS_T=int
1114 TARGET_GETGROUPS_T=gid_t
1118 AC_SUBST(TARGET_GETGROUPS_T)
1120 gcc_AC_FUNC_MMAP_BLACKLIST
1124 # Under VMS, vfork works very differently than on Unix. The standard test
1125 # won't work, and it isn't easily adaptable. It makes more sense to
1127 ac_cv_func_vfork_works=yes
1133 # Until we have in-tree GNU iconv:
1135 AC_SUBST(LIBICONV_DEP)
1141 # We will need to find libiberty.h and ansidecl.h
1142 saved_CFLAGS="$CFLAGS"
1143 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1144 gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \
1145 strsignal strstr strverscmp \
1146 errno snprintf vsnprintf vasprintf malloc realloc calloc \
1147 free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
1148 #include "ansidecl.h"
1149 #include "system.h"])
1151 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1152 #include "ansidecl.h"
1154 #ifdef HAVE_SYS_RESOURCE_H
1155 #include <sys/resource.h>
1159 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1160 #include "ansidecl.h"
1162 #ifdef HAVE_SYS_RESOURCE_H
1163 #include <sys/resource.h>
1165 ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
1166 [Define to \`long' if <sys/resource.h> doesn't define.])])
1168 # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
1169 # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname
1170 # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs
1171 # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME.
1172 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1173 #include "ansidecl.h"
1182 gcc_AC_CHECK_DECLS(times, , ,[
1183 #include "ansidecl.h"
1185 #ifdef HAVE_SYS_TIMES_H
1186 #include <sys/times.h>
1190 # More time-related stuff.
1191 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1192 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1193 #include "ansidecl.h"
1195 #ifdef HAVE_SYS_TIMES_H
1196 #include <sys/times.h>
1198 ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])])
1199 if test $ac_cv_struct_tms = yes; then
1200 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1201 [Define if <sys/times.h> defines struct tms.])
1204 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1205 # revisit after autoconf 2.50.
1206 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1207 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1208 #include "ansidecl.h"
1210 ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
1211 if test $gcc_cv_type_clock_t = yes; then
1212 AC_DEFINE(HAVE_CLOCK_T, 1,
1213 [Define if <time.h> defines clock_t.])
1216 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1217 CFLAGS="$saved_CFLAGS"
1219 gcc_AC_INITFINI_ARRAY
1221 # mkdir takes a single argument on some systems.
1222 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1230 # With Setjmp/Longjmp based exception handling.
1231 AC_ARG_ENABLE(sjlj-exceptions,
1232 [ --enable-sjlj-exceptions
1233 arrange to use setjmp/longjmp exception handling],
1234 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1235 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1236 [Define 0/1 to force the choice for exception handling model.])])
1238 # For platforms with the unwind ABI which includes an unwind library,
1239 # libunwind, we can choose to use the system libunwind.
1240 AC_ARG_WITH(system-libunwind,
1241 [ --with-system-libunwind use installed libunwind])
1243 # --------------------------------------------------------
1244 # Build, host, and target specific configuration fragments
1245 # --------------------------------------------------------
1247 # Collect build-machine-specific information.
1248 . ${srcdir}/config.build
1250 # Collect host-machine-specific information.
1251 . ${srcdir}/config.host
1255 # Collect target-machine-specific information.
1256 . ${srcdir}/config.gcc
1258 extra_objs="${host_extra_objs} ${extra_objs}"
1259 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1261 # Default the target-machine variables that were not explicitly set.
1262 if test x"$tm_file" = x
1263 then tm_file=$cpu_type/$cpu_type.h; fi
1265 if test x"$extra_headers" = x
1266 then extra_headers=; fi
1268 if test x$md_file = x
1269 then md_file=$cpu_type/$cpu_type.md; fi
1271 if test x$out_file = x
1272 then out_file=$cpu_type/$cpu_type.c; fi
1274 if test x"$tmake_file" = x
1275 then tmake_file=$cpu_type/t-$cpu_type
1278 if test x"$dwarf2" = xyes
1279 then tm_file="$tm_file tm-dwarf2.h"
1282 # Say what files are being used for the output code and MD file.
1283 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1284 echo "Using \`$srcdir/config/$md_file' as machine description file."
1286 # If any of the xm_file variables contain nonexistent files, warn
1287 # about them and drop them.
1290 for x in $build_xm_file; do
1291 if test -f $srcdir/config/$x
1293 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1299 for x in $host_xm_file; do
1300 if test -f $srcdir/config/$x
1302 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1308 for x in $xm_file; do
1309 if test -f $srcdir/config/$x
1311 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1317 for f in $tm_file; do
1320 if test $count = ax; then
1321 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1323 echo "Using the following target machine macro files:"
1324 for f in $tm_file; do
1325 echo " $srcdir/config/$f"
1329 if test x$need_64bit_hwint = xyes; then
1330 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1331 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1334 if test x$use_long_long_for_widest_fast_int = xyes; then
1335 AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
1336 [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
1337 efficiently supported by the host hardware.])
1341 for f in $host_xm_file; do
1344 if test $count = a; then
1346 elif test $count = ax; then
1347 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1349 echo "Using the following host machine macro files:"
1350 for f in $host_xm_file; do
1351 echo " $srcdir/config/$f"
1354 echo "Using ${out_host_hook_obj} for host machine hooks."
1356 if test "$host_xm_file" != "$build_xm_file"; then
1358 for f in $build_xm_file; do
1361 if test $count = a; then
1363 elif test $count = ax; then
1364 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1366 echo "Using the following build machine macro files:"
1367 for f in $build_xm_file; do
1368 echo " $srcdir/config/$f"
1377 # Check if a valid thread package
1378 case ${enable_threads} in
1381 target_thread_file='single'
1385 target_thread_file='single'
1387 aix | dce | gnat | irix | posix | posix95 | rtems | \
1388 single | solaris | vxworks | win32 )
1389 target_thread_file=${enable_threads}
1392 echo "${enable_threads} is an unknown thread package" 1>&2
1397 if test x${thread_file} = x; then
1398 # No thread file set by target-specific clauses in config.gcc,
1399 # so use file chosen by default logic above
1400 thread_file=${target_thread_file}
1403 # Make gthr-default.h if we have a thread file.
1405 if test $thread_file != single; then
1406 rm -f gthr-default.h
1407 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1408 gthread_flags=-DHAVE_GTHR_DEFAULT
1410 AC_SUBST(gthread_flags)
1417 if test x$enable___cxa_atexit = xyes || \
1418 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1419 if test x$host = x$target; then
1420 AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
1421 [echo "__cxa_atexit can't be enabled on this target"])
1423 # We can't check for __cxa_atexit when building a cross, so assume
1427 if test x$use_cxa_atexit = xyes; then
1428 AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1429 [Define if you want to use __cxa_atexit, rather than atexit, to
1430 register C++ destructors for local statics and global objects.
1431 This is essential for fully standards-compliant handling of
1432 destructors, but requires __cxa_atexit in libc.])
1436 # Look for a file containing extra machine modes.
1437 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1438 extra_modes_file='$(srcdir)'/config/${extra_modes}
1439 AC_SUBST(extra_modes_file)
1440 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1441 [Define to the name of a file containing a list of extra machine modes
1442 for this architecture.])
1445 # Convert extra_options into a form suitable for Makefile use.
1447 for f in $extra_options; do
1448 extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
1450 AC_SUBST(extra_opt_files)
1452 # auto-host.h is the file containing items generated by autoconf and is
1453 # the first file included by config.h.
1454 # If host=build, it is correct to have bconfig include auto-host.h
1455 # as well. If host!=build, we are in error and need to do more
1456 # work to find out the build config parameters.
1457 if test x$host = x$build
1459 build_auto=auto-host.h
1461 # We create a subdir, then run autoconf in the subdir.
1462 # To prevent recursion we set host and build for the new
1463 # invocation of configure to the build for this invocation
1470 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1471 *) realsrcdir=../${srcdir};;
1473 saved_CFLAGS="${CFLAGS}"
1474 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1475 ${realsrcdir}/configure \
1476 --enable-languages=${enable_languages-all} \
1477 --target=$target_alias --host=$build_alias --build=$build_alias
1478 CFLAGS="${saved_CFLAGS}"
1480 # We just finished tests for the build machine, so rename
1481 # the file auto-build.h in the gcc directory.
1482 mv auto-host.h ../auto-build.h
1485 build_auto=auto-build.h
1487 AC_SUBST(build_subdir)
1489 tm_file="${tm_file} defaults.h"
1490 tm_p_file="${tm_p_file} tm-preds.h"
1491 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1492 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1493 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1494 # put this back in temporarily.
1495 xm_file="auto-host.h ansidecl.h ${xm_file}"
1502 # Compile in configure arguments.
1503 if test -f configargs.h ; then
1504 # Being re-configured.
1505 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1506 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1508 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1511 # Double all backslashes and backslash all quotes to turn
1512 # gcc_config_arguments into a C string.
1513 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1514 $gcc_config_arguments
1516 gcc_config_arguments_str=`cat conftest.out`
1519 cat > configargs.h <<EOF
1520 /* Generated automatically. */
1521 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1522 static const char thread_model[] = "$thread_file";
1524 static const struct {
1525 const char *name, *value;
1526 } configure_default_options[] = $configure_default_options;
1530 # Internationalization
1531 ZW_GNU_GETTEXT_SISTER_DIR
1533 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1534 # -liconv on the link line twice.
1535 case "$LIBINTL" in *$LIBICONV*)
1539 AC_ARG_ENABLE(secureplt,
1540 [ --enable-secureplt enable -msecure-plt by default for PowerPC],
1543 # Windows32 Registry support for specifying GCC installation paths.
1544 AC_ARG_ENABLE(win32-registry,
1545 [ --disable-win32-registry
1546 disable lookup of installation paths in the
1547 Registry on Windows hosts
1548 --enable-win32-registry enable registry lookup (default)
1549 --enable-win32-registry=KEY
1550 use KEY instead of GCC version as the last portion
1551 of the registry key],,)
1554 win32 | pe | cygwin* | mingw32* | uwin*)
1555 if test "x$enable_win32_registry" != xno; then
1556 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no])
1559 if test "x$enable_win32_registry" != xno; then
1560 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1561 [Define to 1 if installation paths should be looked up in the Windows
1562 Registry. Ignored on non-Windows hosts.])
1564 if test "x$enable_win32_registry" != xyes \
1565 && test "x$enable_win32_registry" != x; then
1566 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry",
1567 [Define to be the last component of the Windows registry key under which
1568 to look for installation paths. The full key used will be
1569 HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}.
1570 The default is the GCC version number.])
1576 # Get an absolute path to the GCC top-level source directory
1577 holddir=`${PWDCMD-pwd}`
1579 topdir=`${PWDCMD-pwd}`
1582 # Conditionalize the makefile for this host machine.
1584 for f in ${host_xmake_file}
1586 if test -f ${srcdir}/config/$f
1588 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1592 # Conditionalize the makefile for this target machine.
1594 for f in ${tmake_file}
1596 if test -f ${srcdir}/config/$f
1598 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1601 tmake_file="${tmake_file_}"
1603 # If the host doesn't support symlinks, modify CC in
1604 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1605 # Otherwise, we can use "CC=$(CC)".
1609 cc_set_by_configure="\$(CC)"
1610 quoted_cc_set_by_configure="\$(CC)"
1611 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1612 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1615 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1616 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1617 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1618 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1622 # This is a terrible hack which will go away some day.
1623 host_cc_for_libada=${CC}
1624 AC_SUBST(host_cc_for_libada)
1626 out_object_file=`basename $out_file .c`.o
1628 tm_file_list="options.h"
1629 tm_include_list="options.h"
1630 for f in $tm_file; do
1633 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1634 tm_include_list="${tm_include_list} $f"
1637 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1638 tm_include_list="${tm_include_list} config/$f"
1645 for f in $tm_p_file; do
1648 tm_p_file_list="${tm_p_file_list} $f"
1649 tm_p_include_list="${tm_p_include_list} $f"
1652 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1653 tm_p_include_list="${tm_p_include_list} config/$f"
1659 for f in $xm_file; do
1662 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1663 xm_include_list="${xm_include_list} $f"
1666 xm_file_list="${xm_file_list} $f"
1667 xm_include_list="${xm_include_list} $f"
1670 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1671 xm_include_list="${xm_include_list} config/$f"
1677 host_xm_include_list=
1678 for f in $host_xm_file; do
1681 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1682 host_xm_include_list="${host_xm_include_list} $f"
1685 host_xm_file_list="${host_xm_file_list} $f"
1686 host_xm_include_list="${host_xm_include_list} $f"
1689 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1690 host_xm_include_list="${host_xm_include_list} config/$f"
1696 for f in $build_xm_file; do
1699 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1700 build_xm_include_list="${build_xm_include_list} $f"
1702 auto-build.h | auto-host.h )
1703 build_xm_file_list="${build_xm_file_list} $f"
1704 build_xm_include_list="${build_xm_include_list} $f"
1707 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1708 build_xm_include_list="${build_xm_include_list} config/$f"
1713 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1714 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1715 CROSS= AC_SUBST(CROSS)
1716 ALL=all.internal AC_SUBST(ALL)
1717 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1719 if test "x$with_build_sysroot" != x; then
1720 build_system_header_dir=$with_build_sysroot'$(NATIVE_SYSTEM_HEADER_DIR)'
1722 # This value is used, even on a native system, because
1723 # CROSS_SYSTEM_HEADER_DIR is just
1724 # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR).
1725 build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
1728 if test x$host != x$target
1730 CROSS="-DCROSS_COMPILE"
1732 SYSTEM_HEADER_DIR=$build_system_header_dir
1733 case "$host","$target" in
1734 # Darwin crosses can use the host system's libraries and headers,
1735 # because of the fat library support. Of course, it must be the
1736 # same version of Darwin on both sides. Allow the user to
1737 # just say --target=foo-darwin without a version number to mean
1738 # "the version on this system".
1739 *-*-darwin*,*-*-darwin*)
1740 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1741 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1742 if test $hostos = $targetos -o $targetos = darwin ; then
1744 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1749 i?86-*-*,x86_64-*-* \
1750 | powerpc*-*-*,powerpc64*-*-*)
1751 CROSS="$CROSS -DNATIVE_CROSS" ;;
1753 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1754 SYSTEM_HEADER_DIR=$build_system_header_dir
1757 # If this is a cross-compiler that does not
1758 # have its own set of headers then define
1761 # If this is using newlib, without having the headers available now,
1762 # then define inhibit_libc in LIBGCC2_CFLAGS.
1763 # This prevents libgcc2 from containing any code which requires libc
1766 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1767 test x$with_newlib = xyes ; } &&
1768 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1771 AC_SUBST(inhibit_libc)
1773 # When building gcc with a cross-compiler, we need to adjust things so
1774 # that the generator programs are still built with the native compiler.
1775 # Also, we cannot run fixincludes or fix-header.
1777 # These are the normal (build=host) settings:
1778 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1779 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1780 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1782 # Possibly disable fixproto, on a per-target basis.
1783 case ${use_fixproto} in
1788 STMP_FIXPROTO=stmp-fixproto
1791 AC_SUBST(STMP_FIXPROTO)
1793 # And these apply if build != host, or we are generating coverage data
1794 if test x$build != x$host || test "x$coverage_flags" != x
1796 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1798 if test "x$TARGET_SYSTEM_ROOT" = x; then
1799 if test "x$STMP_FIXPROTO" != x; then
1800 STMP_FIXPROTO=stmp-install-fixproto
1805 # Expand extra_headers to include complete path.
1806 # This substitutes for lots of t-* files.
1808 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1809 for file in ${extra_headers} ; do
1810 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1813 # Define collect2 in Makefile.
1814 case $host_can_use_collect2 in
1816 *) collect2='collect2$(exeext)' ;;
1818 AC_SUBST([collect2])
1820 # Add a definition of USE_COLLECT2 if system wants one.
1821 case $use_collect2 in
1822 no) use_collect2= ;;
1825 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1826 xm_defines="${xm_defines} USE_COLLECT2"
1827 case $host_can_use_collect2 in
1829 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1835 # ---------------------------
1836 # Assembler & linker features
1837 # ---------------------------
1839 # Identify the assembler which will work hand-in-glove with the newly
1840 # built GCC, so that we can examine its features. This is the assembler
1841 # which will be driven by the driver program.
1843 # If build != host, and we aren't building gas in-tree, we identify a
1844 # build->target assembler and hope that it will have the same features
1845 # as the host->target assembler we'll be using.
1846 gcc_cv_gas_major_version=
1847 gcc_cv_gas_minor_version=
1848 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1850 m4_pattern_allow([AS_FOR_TARGET])dnl
1851 AS_VAR_SET_IF(gcc_cv_as,, [
1852 if test -x "$DEFAULT_ASSEMBLER"; then
1853 gcc_cv_as="$DEFAULT_ASSEMBLER"
1854 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1855 && test -f ../gas/Makefile \
1856 && test x$build = x$host; then
1857 gcc_cv_as=../gas/as-new$build_exeext
1858 elif test -x as$build_exeext; then
1859 # Build using assembler in the current directory.
1860 gcc_cv_as=./as$build_exeext
1861 elif test -x $AS_FOR_TARGET; then
1862 gcc_cv_as="$AS_FOR_TARGET"
1864 AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET)
1867 ORIGINAL_AS_FOR_TARGET=$gcc_cv_as
1868 AC_SUBST(ORIGINAL_AS_FOR_TARGET)
1870 AC_MSG_CHECKING(what assembler to use)
1871 if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then
1872 # Single tree build which includes gas. We want to prefer it
1873 # over whatever linker top-level may have detected, since
1874 # we'll use what we're building after installation anyway.
1875 AC_MSG_RESULT(newly built gas)
1877 _gcc_COMPUTE_GAS_VERSION
1878 in_tree_gas_is_elf=no
1879 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1880 || (grep 'obj_format = multi' ../gas/Makefile \
1881 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1883 in_tree_gas_is_elf=yes
1886 AC_MSG_RESULT($gcc_cv_as)
1890 # Identify the linker which will work hand-in-glove with the newly
1891 # built GCC, so that we can examine its features. This is the linker
1892 # which will be driven by the driver program.
1894 # If build != host, and we aren't building gas in-tree, we identify a
1895 # build->target linker and hope that it will have the same features
1896 # as the host->target linker we'll be using.
1897 gcc_cv_gld_major_version=
1898 gcc_cv_gld_minor_version=
1899 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1900 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1902 AS_VAR_SET_IF(gcc_cv_ld,, [
1903 if test -x "$DEFAULT_LINKER"; then
1904 gcc_cv_ld="$DEFAULT_LINKER"
1905 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1906 && test -f ../ld/Makefile \
1907 && test x$build = x$host; then
1908 gcc_cv_ld=../ld/ld-new$build_exeext
1909 elif test -x collect-ld$build_exeext; then
1910 # Build using linker in the current directory.
1911 gcc_cv_ld=./collect-ld$build_exeext
1912 elif test -x $LD_FOR_TARGET; then
1913 gcc_cv_ld="$LD_FOR_TARGET"
1915 AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET)
1918 ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
1919 AC_SUBST(ORIGINAL_LD_FOR_TARGET)
1921 AC_MSG_CHECKING(what linker to use)
1922 if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then
1923 # Single tree build which includes ld. We want to prefer it
1924 # over whatever linker top-level may have detected, since
1925 # we'll use what we're building after installation anyway.
1926 AC_MSG_RESULT(newly built ld)
1928 in_tree_ld_is_elf=no
1929 if (grep 'EMUL = .*elf' ../ld/Makefile \
1930 || grep 'EMUL = .*linux' ../ld/Makefile \
1931 || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
1932 in_tree_ld_is_elf=yes
1934 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
1937 gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
1938 if test x$gcc_cv_gld_version != x; then
1942 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1943 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1946 AC_MSG_RESULT($gcc_cv_ld)
1950 # Figure out what nm we will be using.
1951 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1952 AS_VAR_SET_IF(gcc_cv_nm,, [
1953 if test -f $gcc_cv_binutils_srcdir/configure.in \
1954 && test -f ../binutils/Makefile; then
1955 gcc_cv_nm=../binutils/nm-new$build_exeext
1956 elif test -x nm$build_exeext; then
1957 gcc_cv_nm=./nm$build_exeext
1958 elif test -x $NM_FOR_TARGET; then
1959 gcc_cv_nm="$NM_FOR_TARGET"
1961 AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET)
1964 AC_MSG_CHECKING(what nm to use)
1965 if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then
1966 # Single tree build which includes binutils.
1967 AC_MSG_RESULT(newly built nm)
1970 AC_MSG_RESULT($gcc_cv_nm)
1974 ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm
1975 AC_SUBST(ORIGINAL_NM_FOR_TARGET)
1977 # Figure out what objdump we will be using.
1978 AS_VAR_SET_IF(gcc_cv_objdump,, [
1979 if test -f $gcc_cv_binutils_srcdir/configure.in \
1980 && test -f ../binutils/Makefile; then
1981 # Single tree build which includes binutils.
1982 gcc_cv_objdump=../binutils/objdump$build_exeext
1983 elif test -x objdump$build_exeext; then
1984 gcc_cv_objdump=./objdump$build_exeext
1985 elif test -x $OBJDUMP_FOR_TARGET; then
1986 gcc_cv_objdump="$OBJDUMP_FOR_TARGET"
1988 AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET)
1991 AC_MSG_CHECKING(what objdump to use)
1992 if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then
1993 # Single tree build which includes binutils.
1994 AC_MSG_RESULT(newly built objdump)
1995 elif test x$gcc_cv_objdump = x; then
1996 AC_MSG_RESULT(not found)
1998 AC_MSG_RESULT($gcc_cv_objdump)
2001 # Figure out what assembler alignment features are present.
2002 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
2006 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
2007 [Define if your assembler supports .balign and .p2align.])])
2009 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
2012 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
2013 [Define if your assembler supports specifying the maximum number
2014 of bytes to skip when using the GAS .p2align command.])])
2016 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
2018 [conftest_label1: .word 0
2020 conftest_label2: .word 0
2022 [if test x$gcc_cv_nm != x; then
2023 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
2024 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
2025 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
2027 else gcc_cv_as_subsection_m1=yes
2029 rm -f conftest.nm1 conftest.nm2
2031 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2032 [Define if your assembler supports .subsection and .subsection -1 starts
2033 emitting at the beginning of your section.])])
2035 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2038 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2040 gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref,
2042 [ .weakref foobar, barfnot],,
2043 [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])])
2045 gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
2048 .NSUBSPA $CODE$,COMDAT],,
2049 [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])])
2051 # .hidden needs to be supported in both the assembler and the linker,
2052 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2053 # This is irritatingly difficult to feature test for; we have to check the
2054 # date string after the version number. If we've got an in-tree
2055 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2057 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2058 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2063 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2064 [if test $in_tree_ld = yes ; then
2066 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2067 && test $in_tree_ld_is_elf = yes; then
2068 gcc_cv_ld_hidden=yes
2071 gcc_cv_ld_hidden=yes
2072 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2073 if echo "$ld_ver" | grep GNU > /dev/null; then
2075 ld_vers=`echo $ld_ver | sed -n \
2076 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2077 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2078 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2079 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2080 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2081 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2082 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2083 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2084 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2085 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2086 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2087 if test 0"$ld_date" -lt 20020404; then
2088 if test -n "$ld_date"; then
2089 # If there was date string, but was earlier than 2002-04-04, fail
2091 elif test -z "$ld_vers"; then
2092 # If there was no date string nor ld version number, something is wrong
2095 test -z "$ld_vers_patch" && ld_vers_patch=0
2096 if test "$ld_vers_major" -lt 2; then
2098 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2099 gcc_cv_ld_hidden="no"
2100 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2108 hppa64*-*-hpux* | ia64*-*-hpux*)
2109 gcc_cv_ld_hidden=yes
2117 libgcc_visibility=no
2118 AC_SUBST(libgcc_visibility)
2119 GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
2120 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2121 libgcc_visibility=yes
2122 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2123 [Define if your assembler and linker support .hidden.])
2126 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2127 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2135 [# GAS versions before 2.11 do not support uleb128,
2136 # despite appearing to.
2137 # ??? There exists an elf-specific test that will crash
2138 # the assembler. Perhaps it's better to figure out whether
2139 # arbitrary sections are supported and try the test.
2140 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2141 if echo "$as_ver" | grep GNU > /dev/null; then
2143 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2144 as_major=`echo $as_ver | sed 's/\..*//'`
2145 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2147 if test $as_major -eq 2 && test $as_minor -lt 11
2149 else gcc_cv_as_leb128=yes
2152 [AC_DEFINE(HAVE_AS_LEB128, 1,
2153 [Define if your assembler supports .sleb128 and .uleb128.])])
2155 # GAS versions up to and including 2.11.0 may mis-optimize
2157 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2165 .section .eh_frame,"aw",@progbits
2167 .4byte .LECIE1-.LSCIE1
2181 .4byte .LEFDE1-.LASFDE1
2183 .4byte .LASFDE1-__FRAME_BEGIN__
2191 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2192 cat > conftest.lit <<EOF
2193 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2194 0010 01000000 12000000 18000000 00000000 ................
2195 0020 08000000 04080000 0044 .........D @&t@
2197 cat > conftest.big <<EOF
2198 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2199 0010 00000001 00000012 00000018 00000000 ................
2200 0020 00000008 04000000 0844 .........D @&t@
2202 # If the assembler didn't choke, and we can objdump,
2203 # and we got the correct data, then succeed.
2204 if test x$gcc_cv_objdump != x \
2205 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2206 | tail -3 > conftest.got \
2207 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2208 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2210 gcc_cv_as_eh_frame=yes
2211 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2212 gcc_cv_as_eh_frame=buggy
2214 # Uh oh, what do we do now?
2215 gcc_cv_as_eh_frame=no
2218 if test $gcc_cv_as_eh_frame = buggy; then
2219 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2220 [Define if your assembler mis-optimizes .eh_frame data.])
2223 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2224 [elf,2,12,0], [--fatal-warnings],
2225 [.section .rodata.str, "aMS", @progbits, 1])
2226 if test $gcc_cv_as_shf_merge = no; then
2227 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2228 [elf,2,12,0], [--fatal-warnings],
2229 [.section .rodata.str, "aMS", %progbits, 1])
2231 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2232 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2233 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2235 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
2236 [elf,2,16,0], [--fatal-warnings],
2237 [.section .text,"axG",@progbits,.foo,comdat])
2238 if test $gcc_cv_as_comdat_group = yes; then
2239 gcc_cv_as_comdat_group_percent=no
2241 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
2242 [elf,2,16,0], [--fatal-warnings],
2243 [.section .text,"axG",%progbits,.foo,comdat])
2245 if test $in_tree_ld != yes && test x"$ld_vers" != x; then
2247 if test 0"$ld_date" -lt 20050308; then
2248 if test -n "$ld_date"; then
2249 # If there was date string, but was earlier than 2005-03-08, fail
2251 elif test "$ld_vers_major" -lt 2; then
2253 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
2257 if test $comdat_group = no; then
2258 gcc_cv_as_comdat_group=no
2259 gcc_cv_as_comdat_group_percent=no
2262 AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
2263 [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
2264 [Define 0/1 if your assembler and linker support COMDAT groups.])
2266 # Thread-local storage - the check is heavily parametrized.
2275 .section ".tdata","awT",@progbits
2278 ldq $27,__tls_get_addr($29) !literal!1
2279 lda $16,foo($29) !tlsgd!1
2280 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2281 ldq $27,__tls_get_addr($29) !literal!2
2282 lda $16,foo($29) !tlsldm!2
2283 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2284 ldq $1,foo($29) !gotdtprel
2285 ldah $2,foo($29) !dtprelhi
2286 lda $3,foo($2) !dtprello
2287 lda $4,foo($29) !dtprel
2288 ldq $1,foo($29) !gottprel
2289 ldah $2,foo($29) !tprelhi
2290 lda $3,foo($2) !tprello
2291 lda $4,foo($29) !tprel'
2294 tls_as_opt=--fatal-warnings
2298 .section ".tdata","awT",@progbits
2310 .section ".tdata","awT",@progbits
2314 addil LT%foo-$tls_gdidx$,gp
2315 ldo RT%foo-$tls_gdidx$(%r1),%arg0
2318 addil LT%foo-$tls_ldidx$,gp
2320 ldo RT%foo-$tls_ldidx$(%r1),%arg0
2321 addil LR%foo-$tls_dtpoff$,%ret0
2322 ldo RR%foo-$tls_dtpoff$(%r1),%t1
2324 addil LT%foo-$tls_ieoff$,gp
2325 ldw RT%foo-$tls_ieoff$(%r1),%t2
2328 addil LR%foo-$tls_leoff$,%t1
2329 ldo RR%foo-$tls_leoff$(%r1),%t2'
2332 tls_as_opt=--fatal-warnings
2336 .section ".tdata","awT",%progbits
2349 .section ".tdata","awT",@progbits
2353 leal foo@TLSGD(,%ebx,1), %eax
2354 leal foo@TLSLDM(%ebx), %eax
2355 leal foo@DTPOFF(%eax), %edx
2356 movl foo@GOTTPOFF(%ebx), %eax
2357 subl foo@GOTTPOFF(%ebx), %eax
2358 addl foo@GOTNTPOFF(%ebx), %eax
2359 movl foo@INDNTPOFF, %eax
2360 movl $foo@TPOFF, %eax
2361 subl $foo@TPOFF, %eax
2362 leal foo@NTPOFF(%ecx), %eax'
2365 tls_as_opt=--fatal-warnings
2369 .section ".tdata","awT",@progbits
2373 leaq foo@TLSGD(%rip), %rdi
2374 leaq foo@TLSLD(%rip), %rdi
2375 leaq foo@DTPOFF(%rax), %rdx
2376 movq foo@GOTTPOFF(%rip), %rax
2377 movq $foo@TPOFF, %rax'
2380 tls_as_opt=--fatal-warnings
2384 .section ".tdata","awT",@progbits
2387 addl r16 = @ltoff(@dtpmod(foo#)), gp
2388 addl r17 = @ltoff(@dtprel(foo#)), gp
2389 addl r18 = @ltoff(@tprel(foo#)), gp
2390 addl r19 = @dtprel(foo#), gp
2391 adds r21 = @dtprel(foo#), r13
2392 movl r23 = @dtprel(foo#)
2393 addl r20 = @tprel(foo#), gp
2394 adds r22 = @tprel(foo#), r13
2395 movl r24 = @tprel(foo#)'
2398 tls_as_opt=--fatal-warnings
2402 .section .tdata,"awT",@progbits
2406 addiu $4, $28, %tlsgd(x)
2407 addiu $4, $28, %tlsldm(x)
2408 lui $4, %dtprel_hi(x)
2409 addiu $4, $4, %dtprel_lo(x)
2410 lw $4, %gottprel(x)($28)
2411 lui $4, %tprel_hi(x)
2412 addiu $4, $4, %tprel_lo(x)'
2415 tls_as_opt='-32 --fatal-warnings'
2419 .section ".tdata","awT",@progbits
2427 addi 3,31,ld0@got@tlsgd
2429 addi 3,31,x1@got@tlsld
2432 addis 9,3,x2@dtprel@ha
2433 addi 9,9,x2@dtprel@l
2434 lwz 9,x3@got@tprel(31)
2437 addis 9,2,x2@tprel@ha
2438 addi 9,9,x2@tprel@l'
2441 tls_as_opt="-a32 --fatal-warnings"
2445 .section ".tdata","awT",@progbits
2453 addi 3,2,ld0@got@tlsgd
2459 addi 3,2,x1@got@tlsld
2465 addis 9,3,x2@dtprel@ha
2466 addi 9,9,x2@dtprel@l
2469 ld 9,x3@got@dtprel(2)
2475 tls_as_opt="-a64 --fatal-warnings"
2479 .section ".tdata","awT",@progbits
2488 l %r1,foo@GOTNTPOFF(%r12)
2489 l %r1,0(%r1):tls_load:foo
2490 bas %r14,0(%r1,%r13):tls_gdcall:foo
2491 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2494 tls_as_opt="-m31 --fatal-warnings"
2498 .section ".tdata","awT",@progbits
2506 lg %r1,foo@GOTNTPOFF(%r12)
2507 larl %r1,foo@INDNTPOFF
2508 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2509 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2512 tls_as_opt="-m64 -Aesame --fatal-warnings"
2514 sh-*-* | sh[34]-*-*)
2516 .section ".tdata","awT",@progbits
2526 tls_as_opt=--fatal-warnings
2530 sparc*-sun-solaris2.*)
2537 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2539 .section ".tdata",#alloc,#write,#tls
2542 sethi %tgd_hi22(foo), %o0
2543 add %o0, %tgd_lo10(foo), %o1
2544 add %l7, %o1, %o0, %tgd_add(foo)
2545 call __tls_get_addr, %tgd_call(foo)
2546 sethi %tldm_hi22(foo), %l1
2547 add %l1, %tldm_lo10(foo), %l2
2548 add %l7, %l2, %o0, %tldm_add(foo)
2549 call __tls_get_addr, %tldm_call(foo)
2550 sethi %tldo_hix22(foo), %l3
2551 xor %l3, %tldo_lox10(foo), %l4
2552 add %o0, %l4, %l5, %tldo_add(foo)
2553 sethi %tie_hi22(foo), %o3
2554 add %o3, %tie_lo10(foo), %o3
2555 ld [%l7 + %o3], %o2, %tie_ld(foo)
2556 add %g7, %o2, %o4, %tie_add(foo)
2557 sethi %tle_hix22(foo), %l1
2558 xor %l1, %tle_lox10(foo), %o5
2559 ld [%g7 + %o5], %o1'
2564 .section ".tdata","awT",@progbits
2567 sethi %tgd_hi22(foo), %o0
2568 add %o0, %tgd_lo10(foo), %o1
2569 add %l7, %o1, %o0, %tgd_add(foo)
2570 call __tls_get_addr, %tgd_call(foo)
2571 sethi %tldm_hi22(foo), %l1
2572 add %l1, %tldm_lo10(foo), %l2
2573 add %l7, %l2, %o0, %tldm_add(foo)
2574 call __tls_get_addr, %tldm_call(foo)
2575 sethi %tldo_hix22(foo), %l3
2576 xor %l3, %tldo_lox10(foo), %l4
2577 add %o0, %l4, %l5, %tldo_add(foo)
2578 sethi %tie_hi22(foo), %o3
2579 add %o3, %tie_lo10(foo), %o3
2580 ld [%l7 + %o3], %o2, %tie_ld(foo)
2581 add %g7, %o2, %o4, %tie_add(foo)
2582 sethi %tle_hix22(foo), %l1
2583 xor %l1, %tle_lox10(foo), %o5
2584 ld [%g7 + %o5], %o1'
2587 tls_as_opt="-32 --fatal-warnings"
2593 if test "x$enable_tls" = xno ; then
2594 : # TLS explicitly disabled.
2595 elif test "x$enable_tls" = xyes ; then
2596 set_have_as_tls=yes # TLS explicitly enabled.
2597 elif test -z "$tls_first_major"; then
2598 : # If we don't have a check, assume no support.
2600 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2601 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2602 [set_have_as_tls=yes])
2604 if test $set_have_as_tls = yes ; then
2605 AC_DEFINE(HAVE_AS_TLS, 1,
2606 [Define if your assembler supports thread-local storage.])
2609 # Target-specific assembler checks.
2611 AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
2612 gcc_cv_ld_static_dynamic=no
2613 if test $in_tree_ld = yes ; then
2614 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then
2615 gcc_cv_ld_static_dynamic=yes
2617 elif test x$gcc_cv_ld != x; then
2618 # Check if linker supports -Bstatic/-Bdynamic option
2619 if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
2620 && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
2621 gcc_cv_ld_static_dynamic=yes
2624 if test x"$gcc_cv_ld_static_dynamic" = xyes; then
2625 AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
2626 [Define if your linker supports -Bstatic/-Bdynamic option.])
2628 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
2630 if test x"$demangler_in_ld" = xyes; then
2631 AC_MSG_CHECKING(linker --demangle support)
2632 gcc_cv_ld_demangle=no
2633 if test $in_tree_ld = yes; then
2634 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2635 gcc_cv_ld_demangle=yes
2637 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2638 # Check if the GNU linker supports --demangle option
2639 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2640 gcc_cv_ld_demangle=yes
2643 if test x"$gcc_cv_ld_demangle" = xyes; then
2644 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2645 [Define if your linker supports --demangle option.])
2647 AC_MSG_RESULT($gcc_cv_ld_demangle)
2651 # All TARGET_ABI_OSF targets.
2652 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2653 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2654 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2657 extbl $3, $2, $3 !lituse_bytoff!1
2658 ldq $2, a($29) !literal!1
2659 ldq $4, b($29) !literal!2
2660 ldq_u $3, 0($2) !lituse_base!1
2661 ldq $27, f($29) !literal!5
2662 jsr $26, ($27), f !lituse_jsr!5
2663 ldah $29, 0($26) !gpdisp!3
2664 lda $0, c($29) !gprel
2665 ldah $1, d($29) !gprelhigh
2666 lda $1, d($1) !gprellow
2667 lda $29, 0($29) !gpdisp!3],,
2668 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2669 [Define if your assembler supports explicit relocations.])])
2670 gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
2671 gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
2674 ldq $27, a($29) !literal!1
2675 jsr $26, ($27), a !lituse_jsrdirect!1],,
2676 [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
2677 [Define if your assembler supports the lituse_jsrdirect relocation.])])
2681 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2682 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2683 [-no-mul-bug-abort], [.text],,
2684 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2685 [Define if your assembler supports the -no-mul-bug-abort option.])])
2689 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2690 [.register %g2, #scratch],,
2691 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2692 [Define if your assembler supports .register.])])
2694 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2696 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2697 [Define if your assembler supports -relax option.])])
2699 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2700 gcc_cv_as_sparc_ua_pcrel,,
2708 .uaword %r_disp32(foo)],
2709 [if test x$gcc_cv_ld != x \
2710 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2711 gcc_cv_as_sparc_ua_pcrel=yes
2714 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2715 [Define if your assembler and linker support unaligned PC relative relocs.])
2717 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2718 gcc_cv_as_sparc_ua_pcrel_hidden,,
2723 .uaword %r_disp32(foo)
2724 .byte 0x32, 0x33, 0x34
2729 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2730 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2731 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2732 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2733 if $gcc_cv_objdump -R conftest 2> /dev/null \
2734 | grep 'DISP32' > /dev/null 2>&1; then
2737 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2741 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2742 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2743 ]) # unaligned pcrel relocs
2745 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2746 gcc_cv_as_sparc_offsetable_lo10,,
2749 or %g1, %lo(ab) + 12, %g1
2750 or %g1, %lo(ab + 12), %g1],
2751 [if test x$gcc_cv_objdump != x \
2752 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2753 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2754 gcc_cv_as_sparc_offsetable_lo10=yes
2756 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2757 [Define if your assembler supports offsetable %lo().])])
2761 i[34567]86-*-* | x86_64-*-*)
2764 cygwin* | pe | mingw32*)
2765 # Used for DWARF 2 in PE
2766 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2767 gcc_cv_as_ix86_pe_secrel32,
2773 [if test x$gcc_cv_ld != x \
2774 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2775 gcc_cv_as_ix86_pe_secrel32=yes
2778 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2779 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2783 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2784 gcc_cv_as_ix86_filds_fists,
2785 [2,9,0],, [filds mem; fists mem],,
2786 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2787 [Define if your assembler uses the new HImode fild and fist notation.])])
2789 gcc_GAS_CHECK_FEATURE([cmov syntax],
2790 gcc_cv_as_ix86_cmov_sun_syntax,,,
2791 [cmovl.l %edx, %eax],,
2792 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2793 [Define if your assembler supports the Sun syntax for cmov.])])
2795 # This one is used unconditionally by i386.[ch]; it is to be defined
2796 # to 1 if the feature is present, 0 otherwise.
2797 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2798 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2804 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2805 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2806 [Define true if the assembler supports '.long foo@GOTOFF'.])
2810 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2811 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2813 addl r15 = @ltoffx(x#), gp
2815 ld8.mov r16 = [[r15]], x#],,
2816 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2817 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2823 *-*-aix*) conftest_s=' .machine "pwr5"
2827 gcc_GAS_CHECK_FEATURE([.machine directive support],
2828 gcc_cv_as_machine_directive,,,
2829 [ .machine ppc7400])
2830 if test x$gcc_cv_as_machine_directive != xyes; then
2831 echo "*** This target requires an assembler supporting \".machine\"" >&2
2832 echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
2833 test x$build = x$target && exit 1
2837 *) conftest_s=' .machine power4
2842 gcc_GAS_CHECK_FEATURE([mfcr field support],
2843 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2845 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2846 [Define if your assembler supports mfcr field.])])
2849 *-*-aix*) conftest_s=' .machine "pwr5"
2852 *) conftest_s=' .machine power5
2857 gcc_GAS_CHECK_FEATURE([popcntb support],
2858 gcc_cv_as_powerpc_popcntb, [2,17,0],,
2860 [AC_DEFINE(HAVE_AS_POPCNTB, 1,
2861 [Define if your assembler supports popcntb field.])])
2864 *-*-aix*) conftest_s=' .machine "pwr5x"
2867 *) conftest_s=' .machine power5
2872 gcc_GAS_CHECK_FEATURE([fp round support],
2873 gcc_cv_as_powerpc_fprnd, [2,17,0],,
2875 [AC_DEFINE(HAVE_AS_FPRND, 1,
2876 [Define if your assembler supports fprnd.])])
2879 *-*-aix*) conftest_s=' .csect .text[[PR]]
2881 addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
2885 addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
2886 *) conftest_s=' .text
2888 addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
2891 gcc_GAS_CHECK_FEATURE([rel16 relocs],
2892 gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
2894 [AC_DEFINE(HAVE_AS_REL16, 1,
2895 [Define if your assembler supports R_PPC_REL16 relocs.])])
2899 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2900 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2901 [ lw $4,%gp_rel(foo)($4)],,
2902 [if test x$target_cpu_default = x
2903 then target_cpu_default=MASK_EXPLICIT_RELOCS
2904 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2909 # Mips and HP-UX need the GNU assembler.
2910 # Linux on IA64 might be able to use the Intel assembler.
2913 mips*-*-* | *-*-hpux* )
2914 if test x$gas_flag = xyes \
2915 || test x"$host" != x"$build" \
2916 || test ! -x "$gcc_cv_as" \
2917 || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
2920 echo "*** This configuration requires the GNU assembler" >&2
2926 # ??? Not all targets support dwarf2 debug_line, even within a version
2927 # of gas. Moreover, we need to emit a valid instruction to trigger any
2928 # info to the output file. So, as supported targets are added to gas 2.11,
2929 # add some instruction here to (also) show we expect this might work.
2930 # ??? Once 2.11 is released, probably need to add first known working
2931 # version to the per-target configury.
2933 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2934 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2935 | xstormy16*-*-* | cris-*-* | xtensa-*-* | bfin-*-*)
2938 ia64*-*-* | s390*-*-*)
2945 if test x"$insn" != x; then
2947 .file 1 \"conftest.s\"
2950 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2951 gcc_cv_as_dwarf2_debug_line,
2952 [elf,2,11,0],, [$conftest_s],
2953 [if test x$gcc_cv_objdump != x \
2954 && $gcc_cv_objdump -h conftest.o 2> /dev/null \
2955 | grep debug_line > /dev/null 2>&1; then
2956 gcc_cv_as_dwarf2_debug_line=yes
2959 # The .debug_line file table must be in the exact order that
2960 # we specified the files, since these indices are also used
2961 # by DW_AT_decl_file. Approximate this test by testing if
2962 # the assembler bitches if the same index is assigned twice.
2963 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2964 gcc_cv_as_dwarf2_file_buggy,,,
2968 if test $gcc_cv_as_dwarf2_debug_line = yes \
2969 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2970 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2971 [Define if your assembler supports dwarf2 .file/.loc directives,
2972 and preserves file table indices exactly as given.])
2975 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2976 gcc_cv_as_gdwarf2_flag,
2977 [elf,2,11,0], [--gdwarf2], [$insn],,
2978 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2979 [Define if your assembler supports the --gdwarf2 option.])])
2981 gcc_GAS_CHECK_FEATURE([--gstabs option],
2982 gcc_cv_as_gstabs_flag,
2983 [elf,2,11,0], [--gstabs], [$insn],
2984 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2985 # and warns about it, but still exits successfully. So check for
2987 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2989 else gcc_cv_as_gstabs_flag=yes
2991 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2992 [Define if your assembler supports the --gstabs option.])])
2995 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2996 gcc_cv_ld_ro_rw_mix=unknown
2997 if test $in_tree_ld = yes ; then
2998 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2999 && test $in_tree_ld_is_elf = yes; then
3000 gcc_cv_ld_ro_rw_mix=read-write
3002 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
3003 echo '.section myfoosect, "a"' > conftest1.s
3004 echo '.section myfoosect, "aw"' > conftest2.s
3005 echo '.byte 1' >> conftest2.s
3006 echo '.section myfoosect, "a"' > conftest3.s
3007 echo '.byte 0' >> conftest3.s
3008 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
3009 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
3010 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
3011 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
3012 conftest2.o conftest3.o > /dev/null 2>&1; then
3013 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
3014 | sed -e '/myfoosect/!d' -e N`
3015 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
3016 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
3017 gcc_cv_ld_ro_rw_mix=read-only
3019 gcc_cv_ld_ro_rw_mix=read-write
3024 rm -f conftest.* conftest[123].*
3027 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
3028 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
3029 [Define if your linker links a mix of read-only
3030 and read-write sections into a read-write section.])
3032 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
3034 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
3035 gcc_cv_ld_eh_frame_hdr=no
3036 if test $in_tree_ld = yes ; then
3037 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
3038 && test $in_tree_ld_is_elf = yes; then
3039 gcc_cv_ld_eh_frame_hdr=yes
3041 elif test x$gcc_cv_ld != x; then
3042 # Check if linker supports --eh-frame-hdr option
3043 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
3044 gcc_cv_ld_eh_frame_hdr=yes
3047 GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
3048 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
3049 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
3050 [Define if your linker supports --eh-frame-hdr option.])
3052 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
3054 AC_MSG_CHECKING(linker position independent executable support)
3056 if test $in_tree_ld = yes ; then
3057 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
3058 && test $in_tree_ld_is_elf = yes; then
3061 elif test x$gcc_cv_ld != x; then
3062 # Check if linker supports -pie option
3063 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
3067 if test x"$gcc_cv_ld_pie" = xyes; then
3068 AC_DEFINE(HAVE_LD_PIE, 1,
3069 [Define if your linker supports -pie option.])
3071 AC_MSG_RESULT($gcc_cv_ld_pie)
3077 AC_CACHE_CHECK(linker --as-needed support,
3078 gcc_cv_ld_as_needed,
3079 [gcc_cv_ld_as_needed=no
3080 if test $in_tree_ld = yes ; then
3081 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
3082 && test $in_tree_ld_is_elf = yes; then
3083 gcc_cv_ld_as_needed=yes
3085 elif test x$gcc_cv_ld != x; then
3086 # Check if linker supports --as-needed and --no-as-needed options
3087 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
3088 gcc_cv_ld_as_needed=yes
3092 if test x"$gcc_cv_ld_as_needed" = xyes; then
3093 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
3094 [Define if your linker supports --as-needed and --no-as-needed options.])
3097 case "$target:$tm_file" in
3098 powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
3099 AC_CACHE_CHECK(linker support for omitting dot symbols,
3100 gcc_cv_ld_no_dot_syms,
3101 [gcc_cv_ld_no_dot_syms=no
3102 if test $in_tree_ld = yes ; then
3103 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
3104 gcc_cv_ld_no_dot_syms=yes
3106 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
3107 cat > conftest1.s <<EOF
3111 cat > conftest2.s <<EOF
3112 .section ".opd","aw"
3117 .quad .LEfoo,.TOC.@tocbase,0
3123 if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
3124 && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
3125 && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
3126 gcc_cv_ld_no_dot_syms=yes
3128 rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
3131 if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
3132 AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
3133 [Define if your PowerPC64 linker only needs function descriptor syms.])
3138 AC_CACHE_CHECK(linker --sysroot support,
3140 [gcc_cv_ld_sysroot=no
3141 if test $in_tree_ld = yes ; then
3142 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
3143 gcc_cv_ld_sysroot=yes
3145 elif test x$gcc_cv_ld != x; then
3146 if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
3147 gcc_cv_ld_sysroot=yes
3150 if test x"$gcc_cv_ld_sysroot" = xyes; then
3151 AC_DEFINE(HAVE_LD_SYSROOT, 1,
3152 [Define if your linker supports --sysroot.])
3155 if test x$with_sysroot = x && test x$host = x$target \
3156 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
3157 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
3158 [Define to PREFIX/include if cpp should also search that directory.])
3161 # Test for stack protector support in target C library.
3164 AC_CACHE_CHECK(__stack_chk_fail in target GNU C library,
3165 gcc_cv_libc_provides_ssp,
3166 [gcc_cv_libc_provides_ssp=no
3167 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
3168 if test "x$with_sysroot" = x; then
3169 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
3170 elif test "x$with_sysroot" = xyes; then
3171 glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
3173 glibc_header_dir="${with_sysroot}/usr/include"
3176 glibc_header_dir=/usr/include
3178 # glibc 2.4 and later provides __stack_chk_fail and
3179 # either __stack_chk_guard, or TLS access to stack guard canary.
3180 if test -f $glibc_header_dir/features.h \
3181 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
3182 $glibc_header_dir/features.h > /dev/null; then
3183 if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
3184 $glibc_header_dir/features.h > /dev/null; then
3185 gcc_cv_libc_provides_ssp=yes
3186 elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \
3187 $glibc_header_dir/features.h > /dev/null \
3188 && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
3189 $glibc_header_dir/features.h > /dev/null; then
3190 gcc_cv_libc_provides_ssp=yes
3193 *) gcc_cv_libc_provides_ssp=no ;;
3195 if test x$gcc_cv_libc_provides_ssp = xyes; then
3196 AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
3197 [Define if your target C library provides stack protector support])
3200 # Find out what GC implementation we want, or may, use.
3202 [ --with-gc={page,zone} choose the garbage collection mechanism to use
3210 AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use])
3213 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
3218 echo "Using $GGC for garbage collection."
3220 # Use the system's zlib library.
3222 zlibinc="-I\$(srcdir)/../zlib"
3223 AC_ARG_WITH(system-zlib,
3224 [ --with-system-zlib use installed libz],
3231 dnl Very limited version of automake's enable-maintainer-mode
3233 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3234 dnl maintainer-mode is disabled by default
3235 AC_ARG_ENABLE(maintainer-mode,
3236 [ --enable-maintainer-mode
3237 enable make rules and dependencies not useful
3238 (and sometimes confusing) to the casual installer],
3239 maintainer_mode=$enableval,
3242 AC_MSG_RESULT($maintainer_mode)
3244 if test "$maintainer_mode" = "yes"; then
3255 # Make empty files to contain the specs and options for each language.
3256 # Then add #include lines to for a compiler that has specs and/or options.
3261 for subdir in . $subdirs
3263 if test -f $srcdir/$subdir/lang.opt; then
3264 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
3266 if test -f $srcdir/$subdir/lang-specs.h; then
3267 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
3269 if test -f $srcdir/$subdir/$subdir-tree.def; then
3270 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
3274 # These (without "all_") are set in each config-lang.in.
3275 # `language' must be a single word so is spelled singularly.
3280 all_outputs='Makefile gccbug mklibgcc libada-mk'
3281 # List of language makefile fragments.
3283 # List of language subdirectory makefiles. Deprecated.
3285 # Files for gengtype
3286 all_gtfiles="$target_gtfiles"
3287 # Files for gengtype with language
3288 all_gtfiles_files_langs=
3289 all_gtfiles_files_files=
3291 # Add the language fragments.
3292 # Languages are added via two mechanisms. Some information must be
3293 # recorded in makefile variables, these are defined in config-lang.in.
3294 # We accumulate them and plug them into the main Makefile.
3295 # The other mechanism is a set of hooks for each of the main targets
3296 # like `clean', `install', etc.
3298 language_hooks="Make-hooks"
3308 . ${srcdir}/$s/config-lang.in
3309 if test "x$language" = x
3311 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3314 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3315 if test -f ${srcdir}/$s/Makefile.in
3316 then all_lang_makefiles="$s/Makefile"
3318 all_languages="$all_languages $language"
3319 if test "x$boot_language" = xyes
3321 all_boot_languages="$all_boot_languages $language"
3323 all_compilers="$all_compilers $compilers"
3324 all_stagestuff="$all_stagestuff $stagestuff"
3325 all_outputs="$all_outputs $outputs"
3326 all_gtfiles="$all_gtfiles $gtfiles"
3329 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3330 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3334 # Pick up gtfiles for c
3337 . ${srcdir}/c-config-lang.in
3338 all_gtfiles="$all_gtfiles $gtfiles"
3341 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3342 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3346 for language in $all_languages
3348 check_languages="$check_languages check-$language"
3351 # We link each language in with a set of hooks, reached indirectly via
3356 target_list="all.cross start.encap rest.encap tags \
3357 install-common install-man \
3358 uninstall info man srcextra srcman srcinfo \
3359 mostlyclean clean distclean maintainer-clean \
3360 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3361 for t in $target_list
3364 for lang in $all_languages
3368 echo "lang.$t: $x" >> Make-hooks
3377 echo "dir ." > .gdbinit
3378 echo "dir ${srcdir}" >> .gdbinit
3379 if test x$gdb_needs_out_file_path = xyes
3381 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3383 if test "x$subdirs" != x; then
3386 echo "dir ${srcdir}/$s" >> .gdbinit
3389 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3391 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3392 # absolute path for gcc_tooldir based on inserting the number of up-directory
3393 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3394 # $(libsubdir)/@(unlibsubdir) based path.
3395 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3396 # make and thus we'd get different behavior depending on where we built the
3398 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3399 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3401 changequote(<<, >>)dnl
3402 # An explanation of the sed strings:
3403 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3404 # -e 's|/$||' match a trailing forward slash and eliminates it
3405 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3406 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3408 # (*) Note this pattern overwrites the first character of the string
3409 # with a forward slash if one is not already present. This is not a
3410 # problem because the exact names of the sub-directories concerned is
3411 # unimportant, just the number of them matters.
3413 # The practical upshot of these patterns is like this:
3415 # prefix exec_prefix result
3416 # ------ ----------- ------
3418 # /foo/ /foo/bar ../
3419 # /foo /foo/bar/ ../
3420 # /foo/ /foo/bar/ ../
3421 # /foo /foo/bar/ugg ../../
3424 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3425 changequote([, ])dnl
3427 AC_SUBST(gcc_tooldir)
3430 # Find a directory in which to install a shared libgcc.
3432 AC_ARG_ENABLE(version-specific-runtime-libs,
3433 [ --enable-version-specific-runtime-libs
3434 specify that runtime libraries should be
3435 installed in a compiler-specific directory])
3437 AC_ARG_WITH(slibdir,
3438 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3439 slibdir="$with_slibdir",
3440 if test "${enable_version_specific_runtime_libs+set}" = set; then
3441 slibdir='$(libsubdir)'
3442 elif test "$host" != "$target"; then
3443 slibdir='$(build_tooldir)/lib'
3449 objdir=`${PWDCMD-pwd}`
3452 # Substitute configuration variables
3455 AC_SUBST(all_boot_languages)
3456 AC_SUBST(all_compilers)
3457 AC_SUBST(all_gtfiles)
3458 AC_SUBST(all_gtfiles_files_langs)
3459 AC_SUBST(all_gtfiles_files_files)
3460 AC_SUBST(all_lang_makefrags)
3461 AC_SUBST(all_lang_makefiles)
3462 AC_SUBST(all_languages)
3463 AC_SUBST(all_stagestuff)
3464 AC_SUBST(build_exeext)
3465 AC_SUBST(build_install_headers_dir)
3466 AC_SUBST(build_xm_file_list)
3467 AC_SUBST(build_xm_include_list)
3468 AC_SUBST(build_xm_defines)
3469 AC_SUBST(check_languages)
3470 AC_SUBST(cc_set_by_configure)
3471 AC_SUBST(quoted_cc_set_by_configure)
3472 AC_SUBST(cpp_install_dir)
3473 AC_SUBST(xmake_file)
3474 AC_SUBST(tmake_file)
3475 AC_SUBST(extra_gcc_objs)
3476 AC_SUBST(extra_headers_list)
3477 AC_SUBST(extra_objs)
3478 AC_SUBST(extra_parts)
3479 AC_SUBST(extra_passes)
3480 AC_SUBST(extra_programs)
3481 AC_SUBST(float_h_file)
3482 AC_SUBST(gcc_config_arguments)
3483 AC_SUBST(gcc_gxx_include_dir)
3484 AC_SUBST(libstdcxx_incdir)
3485 AC_SUBST(host_exeext)
3486 AC_SUBST(host_xm_file_list)
3487 AC_SUBST(host_xm_include_list)
3488 AC_SUBST(host_xm_defines)
3489 AC_SUBST(out_host_hook_obj)
3491 AC_SUBST(lang_opt_files)
3492 AC_SUBST(lang_specs_files)
3493 AC_SUBST(lang_tree_files)
3494 AC_SUBST(local_prefix)
3496 AC_SUBST(objc_boehm_gc)
3498 AC_SUBST(out_object_file)
3499 AC_SUBST(stage_prefix_set_by_configure)
3500 AC_SUBST(quoted_stage_prefix_set_by_configure)
3501 AC_SUBST(thread_file)
3502 AC_SUBST(tm_file_list)
3503 AC_SUBST(tm_include_list)
3504 AC_SUBST(tm_defines)
3505 AC_SUBST(tm_p_file_list)
3506 AC_SUBST(tm_p_include_list)
3507 AC_SUBST(xm_file_list)
3508 AC_SUBST(xm_include_list)
3509 AC_SUBST(xm_defines)
3510 AC_SUBST(c_target_objs)
3511 AC_SUBST(cxx_target_objs)
3512 AC_SUBST(target_cpu_default)
3514 AC_SUBST_FILE(language_hooks)
3517 if test x${build} = x${host} ; then
3518 if test x${host} = x${target} ; then
3519 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3521 echo "Links are now set up to build a cross-compiler" 1>&2
3522 echo " from ${host} to ${target}." 1>&2
3525 if test x${host} = x${target} ; then
3526 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3527 echo " for ${target}." 1>&2
3529 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3530 echo " from ${host} to ${target}." 1>&2
3534 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3535 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3537 # Configure the subdirectories
3538 # AC_CONFIG_SUBDIRS($subdirs)
3540 # Create the Makefile
3541 # and configure language subdirectories
3542 AC_CONFIG_FILES($all_outputs)
3544 AC_CONFIG_COMMANDS([default],
3546 case ${CONFIG_HEADERS} in
3547 *auto-host.h:config.in*)
3550 # Make sure all the subdirs exist.
3551 for d in $subdirs doc build
3553 test -d $d || mkdir $d
3555 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3556 # bootstrapping and the installation procedure can still use
3557 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3558 # FLAGS_TO_PASS has been modified to solve the problem there.
3559 # This is virtually a duplicate of what happens in configure.lang; we do
3560 # an extra check to make sure this only happens if ln -s can be used.
3563 for d in ${subdirs} ; do
3564 STARTDIR=`${PWDCMD-pwd}`
3566 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3569 $LN_S ../$t $t 2>/dev/null
3576 [subdirs='$subdirs'])