2 # Process this file with autoconf to generate a configuration script.
4 # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
5 # Free Software Foundation, Inc.
7 #This file is part of GCC.
9 #GCC is free software; you can redistribute it and/or modify it under
10 #the terms of the GNU General Public License as published by the Free
11 #Software Foundation; either version 2, or (at your option) any later
14 #GCC is distributed in the hope that it will be useful, but WITHOUT
15 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 #You should have received a copy of the GNU General Public License
20 #along with GCC; see the file COPYING. If not, write to the Free
21 #Software Foundation, 59 Temple Place - Suite 330, Boston, MA
24 # --------------------------------
25 # Initialization and sanity checks
26 # --------------------------------
30 AC_CONFIG_SRCDIR(tree.c)
31 AC_CONFIG_HEADER(auto-host.h:config.in)
33 # Determine the host, build, and target systems
38 # Determine the noncanonical target name, for directory use.
39 _GCC_TOPLEV_NONCANONICAL_TARGET
41 # Determine the target- and build-specific subdirectories
44 # Set program_transform_name
47 # Check for bogus environment variables.
48 # Test if LIBRARY_PATH contains the notation for the current directory
49 # since this would lead to problems installing/building glibc.
50 # LIBRARY_PATH contains the current directory if one of the following
52 # - one of the terminals (":" and ";") is the first or last sign
53 # - two terminals occur directly after each other
54 # - the path contains an element with a dot in it
55 AC_MSG_CHECKING(LIBRARY_PATH variable)
57 case ${LIBRARY_PATH} in
58 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
59 library_path_setting="contains current directory"
62 library_path_setting="ok"
66 AC_MSG_RESULT($library_path_setting)
67 if test "$library_path_setting" != "ok"; then
69 *** LIBRARY_PATH shouldn't contain the current directory when
70 *** building gcc. Please change the environment variable
71 *** and run configure again.])
74 # Test if GCC_EXEC_PREFIX contains the notation for the current directory
75 # since this would lead to problems installing/building glibc.
76 # GCC_EXEC_PREFIX contains the current directory if one of the following
78 # - one of the terminals (":" and ";") is the first or last sign
79 # - two terminals occur directly after each other
80 # - the path contains an element with a dot in it
81 AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
83 case ${GCC_EXEC_PREFIX} in
84 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
85 gcc_exec_prefix_setting="contains current directory"
88 gcc_exec_prefix_setting="ok"
92 AC_MSG_RESULT($gcc_exec_prefix_setting)
93 if test "$gcc_exec_prefix_setting" != "ok"; then
95 *** GCC_EXEC_PREFIX shouldn't contain the current directory when
96 *** building gcc. Please change the environment variable
97 *** and run configure again.])
104 # Specify the local prefix
106 AC_ARG_WITH(local-prefix,
107 [ --with-local-prefix=DIR specifies directory to put local include],
108 [case "${withval}" in
109 yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
111 *) local_prefix=$with_local_prefix ;;
114 # Default local prefix if it is empty
115 if test x$local_prefix = x; then
116 local_prefix=/usr/local
119 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
120 # passed in by the toplevel make and thus we'd get different behavior
121 # depending on where we built the sources.
123 # Specify the g++ header file directory
124 AC_ARG_WITH(gxx-include-dir,
125 [ --with-gxx-include-dir=DIR
126 specifies directory to put g++ header files],
127 [case "${withval}" in
128 yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
130 *) gcc_gxx_include_dir=$with_gxx_include_dir ;;
133 if test x${gcc_gxx_include_dir} = x; then
134 if test x${enable_version_specific_runtime_libs} = xyes; then
135 gcc_gxx_include_dir='${libsubdir}/include/c++'
137 topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
138 changequote(<<, >>)dnl
139 gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
144 AC_ARG_WITH(cpp_install_dir,
145 [ --with-cpp-install-dir=DIR
146 install the user visible C preprocessor in DIR
147 (relative to PREFIX) as well as PREFIX/bin],
148 [if test x$withval = xyes; then
149 AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
150 elif test x$withval != xno; then
151 cpp_install_dir=$withval
154 # We would like to our source tree to be readonly. However when releases or
155 # pre-releases are generated, the flex/bison generated files as well as the
156 # various formats of manuals need to be included along with the rest of the
157 # sources. Therefore we have --enable-generated-files-in-srcdir to do
160 AC_MSG_CHECKING([whether to place generated files in the source directory])
161 dnl generated-files-in-srcdir is disabled by default
162 AC_ARG_ENABLE(generated-files-in-srcdir,
163 [ --enable-generated-files-in-srcdir
164 put copies of generated files in source dir
165 intended for creating source tarballs for users
166 without texinfo bison or flex.],
167 generated_files_in_srcdir=$enableval,
168 generated_files_in_srcdir=no)
170 AC_MSG_RESULT($generated_files_in_srcdir)
172 if test "$generated_files_in_srcdir" = "yes"; then
179 # -------------------
180 # Find default linker
181 # -------------------
185 [ --with-gnu-ld arrange to work with GNU ld.],
186 gnu_ld_flag="$with_gnu_ld",
189 # With pre-defined ld
191 [ --with-ld arrange to use the specified ld (full pathname)],
192 DEFAULT_LINKER="$with_ld")
193 if test x"${DEFAULT_LINKER+set}" = x"set"; then
194 if test ! -x "$DEFAULT_LINKER"; then
195 AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
196 elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
199 AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
200 [Define to enable the use of a default linker.])
203 AC_MSG_CHECKING([whether a default linker was specified])
204 if test x"${DEFAULT_LINKER+set}" = x"set"; then
205 if test x"$gnu_ld_flag" = x"no"; then
206 AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
208 AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
214 # With demangler in GNU ld
215 AC_ARG_WITH(demangler-in-ld,
216 [ --with-demangler-in-ld try to use demangler in GNU ld.],
217 demangler_in_ld="$with_demangler_in_ld",
220 # ----------------------
221 # Find default assembler
222 # ----------------------
226 [ --with-gnu-as arrange to work with GNU as],
227 gas_flag="$with_gnu_as",
231 [ --with-as arrange to use the specified as (full pathname)],
232 DEFAULT_ASSEMBLER="$with_as")
233 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
234 if test ! -x "$DEFAULT_ASSEMBLER"; then
235 AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
236 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
239 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
240 [Define to enable the use of a default assembler.])
243 AC_MSG_CHECKING([whether a default assembler was specified])
244 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
245 if test x"$gas_flag" = x"no"; then
246 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
248 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
258 # If a non-executable a.out is present (e.g. created by GNU as above even if
259 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
260 # file, even when creating an executable, so an execution test fails.
261 # Remove possible default executable files to avoid this.
263 # FIXME: This really belongs into AC_PROG_CC and can be removed once
264 # Autoconf includes it.
265 rm -f a.out a.exe b.out
267 # Find the native compiler
270 # autoconf is lame and doesn't give us any substitution variable for this.
271 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
272 NO_MINUS_C_MINUS_O=yes
274 OUTPUT_OPTION='-o $@'
276 AC_SUBST(NO_MINUS_C_MINUS_O)
277 AC_SUBST(OUTPUT_OPTION)
279 # -------------------------
280 # Check C compiler features
281 # -------------------------
288 # sizeof(char) is 1 by definition.
289 AC_COMPILE_CHECK_SIZEOF(void *)
290 AC_COMPILE_CHECK_SIZEOF(short)
291 AC_COMPILE_CHECK_SIZEOF(int)
292 AC_COMPILE_CHECK_SIZEOF(long)
293 if test $ac_cv_c_long_long = yes; then
294 AC_COMPILE_CHECK_SIZEOF(long long)
296 if test $ac_cv_c___int64 = yes; then
297 AC_COMPILE_CHECK_SIZEOF(__int64)
300 # ---------------------
301 # Warnings and checking
302 # ---------------------
304 # Check $CC warning features (if it's GCC).
305 # We want to use -pedantic, but we don't want warnings about
308 # So, we only use -pedantic if we can disable those warnings.
311 [whether ${CC} accepts -Wno-long-long],
312 [ac_cv_prog_cc_w_no_long_long],
313 [save_CFLAGS="$CFLAGS"
314 CFLAGS="-Wno-long-long"
315 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
316 [ac_cv_prog_cc_w_no_long_long=yes],
317 [ac_cv_prog_cc_w_no_long_long=no])
318 CFLAGS="$save_CFLAGS"
322 [whether ${CC} accepts -Wno-variadic-macros],
323 [ac_cv_prog_cc_w_no_variadic_macros],
324 [save_CFLAGS="$CFLAGS"
325 CFLAGS="-Wno-variadic-macros"
326 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
327 [ac_cv_prog_cc_w_no_variadic_macros=yes],
328 [ac_cv_prog_cc_w_no_variadic_macros=no])
329 CFLAGS="$save_CFLAGS"
333 if test $ac_cv_prog_cc_w_no_long_long = yes \
334 && test $ac_cv_prog_cc_w_no_variadic_macros = yes ; then
335 strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros"
337 AC_SUBST(strict1_warn)
339 # Add -Wold-style-definition if it's accepted
341 [whether ${CC} accepts -Wold-style-definition],
342 [ac_cv_prog_cc_w_old_style_definition],
343 [save_CFLAGS="$CFLAGS"
344 CFLAGS="-Wold-style-definition"
345 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
346 [ac_cv_prog_cc_w_old_style_definition=yes],
347 [ac_cv_prog_cc_w_old_style_definition=no])
348 CFLAGS="$save_CFLAGS"
350 if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
351 strict1_warn="${strict1_warn} -Wold-style-definition"
354 # Enable -Werror, period.
355 AC_ARG_ENABLE(werror_always,
356 [ --enable-werror-always enable -Werror always], [],
357 [enable_werror_always=no])
358 if test x${enable_werror_always} = xyes ; then
359 strict1_warn="${strict1_warn} -Werror"
363 # If the native compiler is GCC, we can enable warnings even in stage1.
364 # That's useful for people building cross-compilers, or just running a
367 if test "x$GCC" = "xyes"; then
368 warn_cflags='$(GCC_WARN_CFLAGS)'
370 AC_SUBST(warn_cflags)
372 # Enable -Werror in bootstrap stage2 and later.
373 # Change the default to "no" on release branches.
374 AC_ARG_ENABLE(werror,
375 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
377 if test x$enable_werror = xyes ; then
382 # Enable expensive internal checks
383 AC_ARG_ENABLE(checking,
384 [ --enable-checking[=LIST]
385 enable expensive run-time checks. With LIST,
386 enable only specific categories of checks.
387 Categories are: fold,gc,gcac,misc,rtlflag,rtl,
388 tree,valgrind; default is gc,misc,rtlflag,tree],
394 ac_gc_always_collect=
396 case "${enableval}" in
397 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
398 ac_rtlflag_checking=1 ;;
400 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
401 set fnord $enableval; shift
406 fold) ac_fold_checking=1 ;;
407 gc) ac_gc_checking=1 ;;
408 gcac) ac_gc_always_collect=1 ;;
409 misc) ac_checking=1 ;;
410 rtlflag) ac_rtlflag_checking=1 ;;
411 rtl) ac_rtl_checking=1 ;;
412 tree) ac_tree_checking=1 ;;
413 valgrind) ac_checking_valgrind=1 ;;
414 *) AC_MSG_ERROR(unknown check category $check) ;;
420 # Enable some checks by default for development versions of GCC
421 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
423 if test x$ac_checking != x ; then
424 AC_DEFINE(ENABLE_CHECKING, 1,
425 [Define if you want more run-time sanity checks. This one gets a grab
426 bag of miscellaneous but relatively cheap checks.])
427 nocommon_flag=-fno-common
429 AC_SUBST(nocommon_flag)
430 if test x$ac_tree_checking != x ; then
431 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
432 [Define if you want all operations on trees (the basic data
433 structure of the front ends) to be checked for dynamic type safety
434 at runtime. This is moderately expensive. The tree browser debugging
435 routines will also be enabled by this option.
437 TREEBROWSER=tree-browser.o
439 AC_SUBST(TREEBROWSER)
440 if test x$ac_rtl_checking != x ; then
441 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
442 [Define if you want all operations on RTL (the basic data structure
443 of the optimizer and back end) to be checked for dynamic type safety
444 at runtime. This is quite expensive.])
446 if test x$ac_rtlflag_checking != x ; then
447 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
448 [Define if you want RTL flag accesses to be checked against the RTL
449 codes that are supported for each access macro. This is relatively
452 if test x$ac_gc_checking != x ; then
453 AC_DEFINE(ENABLE_GC_CHECKING, 1,
454 [Define if you want the garbage collector to do object poisoning and
455 other memory allocation checks. This is quite expensive.])
457 if test x$ac_gc_always_collect != x ; then
458 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
459 [Define if you want the garbage collector to operate in maximally
460 paranoid mode, validating the entire heap and collecting garbage at
461 every opportunity. This is extremely expensive.])
463 if test x$ac_fold_checking != x ; then
464 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
465 [Define if you want fold checked that it never destructs its argument.
466 This is quite expensive.])
468 valgrind_path_defines=
471 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
472 dnl # an if statement. This was the source of very frustrating bugs
473 dnl # in converting to autoconf 2.5x!
474 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
476 if test x$ac_checking_valgrind != x ; then
477 # It is certainly possible that there's valgrind but no valgrind.h.
478 # GCC relies on making annotations so we must have both.
479 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
481 [#include <valgrind/memcheck.h>
482 #ifndef VALGRIND_DISCARD
483 #error VALGRIND_DISCARD not defined
485 [gcc_cv_header_valgrind_memcheck_h=yes],
486 [gcc_cv_header_valgrind_memcheck_h=no])
487 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
488 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
490 [#include <memcheck.h>
491 #ifndef VALGRIND_DISCARD
492 #error VALGRIND_DISCARD not defined
494 [gcc_cv_header_memcheck_h=yes],
495 gcc_cv_header_memcheck_h=no)
496 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
497 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
498 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
499 if test "x$valgrind_path" = "x" \
500 || (test $have_valgrind_h = no \
501 && test $gcc_cv_header_memcheck_h = no \
502 && test $gcc_cv_header_valgrind_memcheck_h = no); then
503 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
505 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
506 valgrind_command="$valgrind_path -q"
507 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
508 [Define if you want to run subprograms and generated programs
509 through valgrind (a memory checker). This is extremely expensive.])
510 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
511 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
512 [Define if valgrind's valgrind/memcheck.h header is installed.])
514 if test $gcc_cv_header_memcheck_h = yes; then
515 AC_DEFINE(HAVE_MEMCHECK_H, 1,
516 [Define if valgrind's memcheck.h header is installed.])
519 AC_SUBST(valgrind_path_defines)
520 AC_SUBST(valgrind_command)
522 AC_ARG_ENABLE(mapped-location,
523 [ --enable-mapped-location location_t is fileline integer cookie],,
524 enable_mapped_location=no)
526 if test "$enable_mapped_location" = yes ; then
527 AC_DEFINE(USE_MAPPED_LOCATION, 1,
528 [Define if location_t is fileline integer cookie.])
531 # Enable code coverage collection
532 AC_ARG_ENABLE(coverage,
533 [ --enable-coverage[=LEVEL]
534 enable compiler\'s code coverage collection.
535 Use to measure compiler performance and locate
536 unused parts of the compiler. With LEVEL, specify
537 optimization. Values are opt, noopt,
539 [case "${enableval}" in
541 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
544 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
547 # a.k.a. --disable-coverage
551 AC_MSG_ERROR(unknown coverage setting $enableval)
555 AC_SUBST(coverage_flags)
557 AC_ARG_ENABLE(gather-detailed-mem-stats,
558 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
559 [enable_gather_detailed_mem_stats=no])
560 if test x$enable_gather_detailed_mem_stats = xyes ; then
561 AC_DEFINE(GATHER_STATISTICS, 1,
562 [Define to enable detailed memory allocation stats gathering.])
565 # -------------------------------
566 # Miscenalleous configure options
567 # -------------------------------
571 [ --with-stabs arrange to use stabs instead of host debug format],
575 # Determine whether or not multilibs are enabled.
576 AC_ARG_ENABLE(multilib,
577 [ --enable-multilib enable library support for multiple ABIs],
578 [], [enable_multilib=yes])
579 AC_SUBST(enable_multilib)
581 # Enable __cxa_atexit for C++.
582 AC_ARG_ENABLE(__cxa_atexit,
583 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
587 # Pass with no value to take the default
588 # Pass with a value to specify a thread package
589 AC_ARG_ENABLE(threads,
590 [ --enable-threads enable thread usage for target GCC
591 --enable-threads=LIB use LIB thread package for target GCC],,
594 AC_ARG_ENABLE(objc-gc,
595 [ --enable-objc-gc enable the use of Boehm's garbage collector with
596 the GNU Objective-C runtime],
597 if test x$enable_objc_gc = xno; then
605 [ --with-dwarf2 force the default debug format to be DWARF 2],
606 dwarf2="$with_dwarf2",
609 AC_ARG_ENABLE(shared,
610 [ --disable-shared don't provide a shared libgcc],
612 case $enable_shared in
616 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
617 for pkg in $enableval; do
618 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
625 ], [enable_shared=yes])
626 AC_SUBST(enable_shared)
629 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
631 case ${with_sysroot} in
632 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
633 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
636 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
637 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
639 if test "x$exec_prefix" = xNONE; then
640 if test "x$prefix" = xNONE; then
641 test_prefix=/usr/local
646 test_prefix=$exec_prefix
648 case ${TARGET_SYSTEM_ROOT} in
649 "${test_prefix}"|"${test_prefix}/"*|\
650 '${exec_prefix}'|'${exec_prefix}/'*)
651 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
652 TARGET_SYSTEM_ROOT_DEFINE="$t"
657 TARGET_SYSTEM_ROOT_DEFINE=
658 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
660 AC_SUBST(TARGET_SYSTEM_ROOT)
661 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
662 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
664 # Build with intermodule optimisations
665 AC_ARG_ENABLE(intermodule,
666 [ --enable-intermodule build the compiler in one step],
667 [case ${enable_intermodule} in
668 yes) onestep="-onestep";;
674 # Sanity check enable_languages in case someone does not run the toplevel
675 # configure # script.
676 AC_ARG_ENABLE(languages,
677 [ --enable-languages=LIST specify which front-ends to build],
678 [case ,${enable_languages}, in
680 # go safe -- we cannot be much sure without the toplevel
682 # analysis of which target libs are present and usable
686 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
691 enable_languages=c,${enable_languages}
694 [enable_languages=c])
697 for lang in ${srcdir}/*/config-lang.in
700 # The odd quoting in the next line works around
701 # an apparent bug in bash 1.12 on linux.
703 ${srcdir}/[*]/config-lang.in) ;;
705 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
706 if test "x$lang_alias" = x
708 echo "$lang doesn't set \$language." 1>&2
711 case ",$enable_languages," in
713 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
721 # -------------------------
722 # Checks for other programs
723 # -------------------------
727 # Find some useful tools
729 # We need awk to create options.c and options.h.
730 # Bail out if it's missing.
732 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
740 # By default, the Darwin ranlib will not treat common symbols as
741 # definitions when building the archive table of contents. Other
742 # ranlibs do that; pass an option to the Darwin ranlib that makes
743 # it behave similarly.
749 AC_SUBST(ranlib_flags)
753 # See if cmp has --ignore-initial.
754 gcc_AC_PROG_CMP_IGNORE_INITIAL
756 # See if we have the mktemp command.
757 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
759 # Do we have a single-tree copy of texinfo?
760 if test -f $srcdir/../texinfo/Makefile.in; then
761 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
762 gcc_cv_prog_makeinfo_modern=yes
763 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
765 # See if makeinfo has been installed and is modern enough
766 # that we can use it.
767 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
768 [GNU texinfo.* \([0-9][0-9.]*\)],
772 if test $gcc_cv_prog_makeinfo_modern = no; then
774 *** Makeinfo is missing or too old.
775 *** Info documentation will not be built.])
778 BUILD_INFO=info AC_SUBST(BUILD_INFO)
781 # Is pod2man recent enough to regenerate manpages?
782 AC_MSG_CHECKING([for recent Pod::Man])
783 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
785 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
792 dnl Don't use AC_PROG_LEX; we insist on flex.
793 dnl LEXLIB is not useful in gcc.
794 if test x${build} = x${host} && test -f $srcdir/../flex/skel.c \
795 && test -d ../flex ; then
796 FLEX='$(objdir)/../flex/flex'
798 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
802 # The -L switch is so bison can find its skeleton file.
803 if test x${build} = x${host} && test -f $srcdir/../bison/bison.simple \
804 && test -d ../bison ; then
805 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
807 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
811 if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
812 && test -d ../binutils ; then
813 NM='$(objdir)/../binutils/nm-new'
815 AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
819 if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
820 && test -d ../binutils ; then
821 AR='$(objdir)/../binutils/ar'
823 AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
827 # --------------------
828 # Checks for C headers
829 # --------------------
831 AC_MSG_CHECKING(for GNU C library)
832 AC_CACHE_VAL(gcc_cv_glibc,
834 [#include <features.h>],[
835 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
836 #error Not a GNU C library system
840 AC_MSG_RESULT($gcc_cv_glibc)
841 if test $gcc_cv_glibc = yes; then
842 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
845 # Need to reject headers which give warnings, so that the -Werror bootstrap
846 # works later. *sigh* This needs to come before all header checks.
853 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
854 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
855 sys/resource.h sys/param.h sys/times.h sys/stat.h \
856 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
858 # Check for thread headers.
859 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
860 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
862 # These tests can't be done till we know if we have limits.h.
870 # Stage specific cflags for build.
876 stage1_cflags="-Wa,-J"
882 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
883 # sources; use -no-cpp-precomp to get to GNU cpp.
884 # Apple's GCC has bugs in designated initializer handling, so disable
886 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
889 AC_SUBST(stage1_cflags)
891 # These libraries may be used by collect2.
892 # We may need a special search path to get them linked.
893 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
895 for libs in '' -lld -lmld \
896 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
897 '-L/usr/lib/cmplrs/cc3.11 -lmld'
900 AC_TRY_LINK_FUNC(ldopen,
901 [gcc_cv_collect2_libs="$libs"; break])
904 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
905 case $gcc_cv_collect2_libs in
907 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
909 AC_SUBST(COLLECT2_LIBS)
911 # When building Ada code on Alpha, we need exc_resume which is usually in
912 # -lexc. So test for it.
915 AC_SEARCH_LIBS(exc_resume, exc)
918 AC_SUBST(GNAT_LIBEXC)
920 # Some systems put ldexp and frexp in libm instead of libc; assume
921 # they're both in the same place. jcf-dump needs them.
924 AC_SEARCH_LIBS(ldexp, m)
929 # Use <inttypes.h> only if it exists,
930 # doesn't clash with <sys/types.h>, and declares intmax_t.
931 AC_MSG_CHECKING(for inttypes.h)
932 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
934 [#include <sys/types.h>
935 #include <inttypes.h>],
937 [gcc_cv_header_inttypes_h=yes],
938 gcc_cv_header_inttypes_h=no)])
939 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
940 if test $gcc_cv_header_inttypes_h = yes; then
941 AC_DEFINE(HAVE_INTTYPES_H, 1,
942 [Define if you have a working <inttypes.h> header file.])
945 dnl Disabled until we have a complete test for buggy enum bitfields.
946 dnl gcc_AC_C_ENUM_BF_UNSIGNED
948 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
949 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
950 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
951 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
954 if test x$ac_cv_func_mbstowcs = xyes; then
955 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
956 [ AC_TRY_RUN([#include <stdlib.h>
962 gcc_cv_func_mbstowcs_works=yes,
963 gcc_cv_func_mbstowcs_works=no,
964 gcc_cv_func_mbstowcs_works=yes)])
965 if test x$gcc_cv_func_mbstowcs_works = xyes; then
966 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
967 [Define this macro if mbstowcs does not crash when its
968 first argument is NULL.])
972 AC_CHECK_TYPE(ssize_t, int)
974 # Try to determine the array type of the second argument of getgroups
975 # for the target system (int or gid_t).
977 if test "${target}" = "${build}"; then
978 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
981 # This condition may need some tweaking. It should include all
982 # targets where the array type of the second argument of getgroups
983 # is int and the type of gid_t is not equivalent to int.
984 *-*-sunos* | *-*-ultrix*)
985 TARGET_GETGROUPS_T=int
988 TARGET_GETGROUPS_T=gid_t
992 AC_SUBST(TARGET_GETGROUPS_T)
994 gcc_AC_FUNC_PRINTF_PTR
995 gcc_AC_FUNC_MMAP_BLACKLIST
999 # Under VMS, vfork works very differently than on Unix. The standard test
1000 # won't work, and it isn't easily adaptable. It makes more sense to
1002 ac_cv_func_vfork_works=yes
1008 # Until we have in-tree GNU iconv:
1010 AC_SUBST(LIBICONV_DEP)
1014 # We will need to find libiberty.h and ansidecl.h
1015 saved_CFLAGS="$CFLAGS"
1016 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
1017 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
1018 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
1019 fprintf_unlocked strstr errno snprintf vasprintf \
1020 malloc realloc calloc free basename getopt clock getpagesize, , ,[
1021 #include "ansidecl.h"
1022 #include "system.h"])
1024 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
1025 #include "ansidecl.h"
1027 #ifdef HAVE_SYS_RESOURCE_H
1028 #include <sys/resource.h>
1033 #include "ansidecl.h"
1035 #ifdef HAVE_SYS_RESOURCE_H
1036 #include <sys/resource.h>
1038 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
1039 [Define to \`long' if <sys/resource.h> doesn't define.])])
1041 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1042 #include "ansidecl.h"
1049 gcc_AC_CHECK_DECLS(times, , ,[
1050 #include "ansidecl.h"
1052 #ifdef HAVE_SYS_TIMES_H
1053 #include <sys/times.h>
1057 # More time-related stuff.
1058 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1060 #include "ansidecl.h"
1062 #ifdef HAVE_SYS_TIMES_H
1063 #include <sys/times.h>
1065 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
1066 if test $ac_cv_struct_tms = yes; then
1067 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1068 [Define if <sys/times.h> defines struct tms.])
1071 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1072 # revisit after autoconf 2.50.
1073 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1075 #include "ansidecl.h"
1077 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
1078 if test $gcc_cv_type_clock_t = yes; then
1079 AC_DEFINE(HAVE_CLOCK_T, 1,
1080 [Define if <time.h> defines clock_t.])
1083 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1084 CFLAGS="$saved_CFLAGS"
1086 gcc_AC_INITFINI_ARRAY
1088 # mkdir takes a single argument on some systems.
1089 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1097 # With Setjmp/Longjmp based exception handling.
1098 AC_ARG_ENABLE(sjlj-exceptions,
1099 [ --enable-sjlj-exceptions
1100 arrange to use setjmp/longjmp exception handling],
1101 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1102 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1103 [Define 0/1 to force the choice for exception handling model.])])
1105 if test x$host = x$target; then
1106 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
1108 use_libunwind_default=no
1110 # Use libunwind based exception handling.
1111 AC_ARG_ENABLE(libunwind-exceptions,
1112 [ --enable-libunwind-exceptions force use libunwind for exceptions],
1113 use_libunwind_exceptions=$enableval,
1114 use_libunwind_exceptions=$use_libunwind_default)
1115 if test x"$use_libunwind_exceptions" = xyes; then
1116 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
1117 [Define if gcc should use -lunwind.])
1120 # --------------------------------------------------------
1121 # Build, host, and target specific configuration fragments
1122 # --------------------------------------------------------
1124 # Collect build-machine-specific information.
1125 . ${srcdir}/config.build
1127 # Collect host-machine-specific information.
1128 . ${srcdir}/config.host
1132 # Collect target-machine-specific information.
1133 . ${srcdir}/config.gcc
1135 extra_objs="${host_extra_objs} ${extra_objs}"
1136 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1138 # Default the target-machine variables that were not explicitly set.
1139 if test x"$tm_file" = x
1140 then tm_file=$cpu_type/$cpu_type.h; fi
1142 if test x"$extra_headers" = x
1143 then extra_headers=; fi
1145 if test x$md_file = x
1146 then md_file=$cpu_type/$cpu_type.md; fi
1148 if test x$out_file = x
1149 then out_file=$cpu_type/$cpu_type.c; fi
1151 if test x"$tmake_file" = x
1152 then tmake_file=$cpu_type/t-$cpu_type
1155 if test x"$dwarf2" = xyes
1156 then tm_file="$tm_file tm-dwarf2.h"
1159 # Say what files are being used for the output code and MD file.
1160 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1161 echo "Using \`$srcdir/config/$md_file' as machine description file."
1163 # If any of the xm_file variables contain nonexistent files, warn
1164 # about them and drop them.
1167 for x in $build_xm_file; do
1168 if test -f $srcdir/config/$x
1170 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1176 for x in $host_xm_file; do
1177 if test -f $srcdir/config/$x
1179 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1185 for x in $xm_file; do
1186 if test -f $srcdir/config/$x
1188 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1194 for f in $tm_file; do
1197 if test $count = ax; then
1198 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1200 echo "Using the following target machine macro files:"
1201 for f in $tm_file; do
1202 echo " $srcdir/config/$f"
1206 if test x$need_64bit_hwint = xyes; then
1207 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1208 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1212 for f in $host_xm_file; do
1215 if test $count = a; then
1217 elif test $count = ax; then
1218 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1220 echo "Using the following host machine macro files:"
1221 for f in $host_xm_file; do
1222 echo " $srcdir/config/$f"
1225 echo "Using ${out_host_hook_obj} for host machine hooks."
1227 if test "$host_xm_file" != "$build_xm_file"; then
1229 for f in $build_xm_file; do
1232 if test $count = a; then
1234 elif test $count = ax; then
1235 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1237 echo "Using the following build machine macro files:"
1238 for f in $build_xm_file; do
1239 echo " $srcdir/config/$f"
1248 # Check if a valid thread package
1249 case ${enable_threads} in
1252 target_thread_file='single'
1256 target_thread_file='single'
1258 aix | dce | gnat | irix | posix | rtems | \
1259 single | solaris | vxworks | win32 )
1260 target_thread_file=${enable_threads}
1263 echo "${enable_threads} is an unknown thread package" 1>&2
1268 if test x${thread_file} = x; then
1269 # No thread file set by target-specific clauses in config.gcc,
1270 # so use file chosen by default logic above
1271 thread_file=${target_thread_file}
1274 # Make gthr-default.h if we have a thread file.
1276 if test $thread_file != single; then
1277 rm -f gthr-default.h
1278 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1279 gthread_flags=-DHAVE_GTHR_DEFAULT
1281 AC_SUBST(gthread_flags)
1287 if test x$enable___cxa_atexit = xyes || \
1288 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1289 AC_CHECK_FUNC(__cxa_atexit,
1290 [AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1291 [Define if you want to use __cxa_atexit, rather than atexit, to
1292 register C++ destructors for local statics and global objects.
1293 This is essential for fully standards-compliant handling of
1294 destructors, but requires __cxa_atexit in libc.])],
1295 echo "__cxa_atexit can't be enabled on this target")
1298 # Look for a file containing extra machine modes.
1299 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1300 extra_modes_file='$(srcdir)'/config/${extra_modes}
1301 AC_SUBST(extra_modes_file)
1302 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1303 [Define to the name of a file containing a list of extra machine modes
1304 for this architecture.])
1307 # auto-host.h is the file containing items generated by autoconf and is
1308 # the first file included by config.h.
1309 # If host=build, it is correct to have bconfig include auto-host.h
1310 # as well. If host!=build, we are in error and need to do more
1311 # work to find out the build config parameters.
1312 if test x$host = x$build
1314 build_auto=auto-host.h
1317 # We create a subdir, then run autoconf in the subdir.
1318 # To prevent recursion we set host and build for the new
1319 # invocation of configure to the build for this invocation
1326 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1327 *) realsrcdir=../${srcdir};;
1329 saved_CFLAGS="${CFLAGS}"
1330 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1331 ${realsrcdir}/configure \
1332 --enable-languages=${enable_languages-all} \
1333 --target=$target_alias --host=$build_alias --build=$build_alias
1334 CFLAGS="${saved_CFLAGS}"
1336 # We just finished tests for the build machine, so rename
1337 # the file auto-build.h in the gcc directory.
1338 mv auto-host.h ../auto-build.h
1341 build_auto=auto-build.h
1342 FORBUILD=../${build_subdir}
1346 tm_file="${tm_file} defaults.h"
1347 tm_p_file="${tm_p_file} tm-preds.h"
1348 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1349 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1350 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1351 # put this back in temporarily.
1352 xm_file="ansidecl.h ${xm_file}"
1358 # Get the version trigger filename from the toplevel
1359 if test "${with_gcc_version_trigger+set}" = set; then
1360 gcc_version_trigger=$with_gcc_version_trigger
1362 gcc_version_trigger=${srcdir}/version.c
1365 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1366 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1368 # Compile in configure arguments.
1369 if test -f configargs.h ; then
1370 # Being re-configured.
1371 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1372 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1374 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1377 # Double all backslashes and backslash all quotes to turn
1378 # gcc_config_arguments into a C string.
1379 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1380 $gcc_config_arguments
1382 gcc_config_arguments_str=`cat conftest.out`
1385 cat > configargs.h <<EOF
1386 /* Generated automatically. */
1387 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1388 static const char thread_model[] = "$thread_file";
1390 static const struct {
1391 const char *name, *value;
1392 } configure_default_options[] = $configure_default_options;
1396 # Internationalization
1398 VERSION="$gcc_version"
1399 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE",
1400 [The name of this program for internationalization purposes.])
1404 ZW_GNU_GETTEXT_SISTER_DIR
1406 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1407 # -liconv on the link line twice.
1408 case "$LIBINTL" in *$LIBICONV*)
1412 # Windows32 Registry support for specifying GCC installation paths.
1413 AC_ARG_ENABLE(win32-registry,
1414 [ --disable-win32-registry
1415 disable lookup of installation paths in the
1416 Registry on Windows hosts
1417 --enable-win32-registry enable registry lookup (default)
1418 --enable-win32-registry=KEY
1419 use KEY instead of GCC version as the last portion
1420 of the registry key],,)
1422 win32 | pe | cygwin* | mingw32* | uwin*)
1423 AC_MSG_CHECKING(whether windows registry support is requested)
1424 if test "x$enable_win32_registry" != xno; then
1425 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1426 [Define to 1 if installation paths should be looked up in Windows32
1427 Registry. Ignored on non windows32 hosts.])
1429 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1434 # Check if user specified a different registry key.
1435 case "x${enable_win32_registry}" in
1438 gcc_cv_win32_registry_key="$VERSION"
1441 # no registry lookup.
1442 gcc_cv_win32_registry_key=''
1445 # user-specified key.
1446 gcc_cv_win32_registry_key="$enable_win32_registry"
1450 if test "x$enable_win32_registry" != xno; then
1451 AC_MSG_CHECKING(registry key on windows hosts)
1452 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1453 [Define to be the last portion of registry key on windows hosts.])
1454 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1459 # Get an absolute path to the GCC top-level source directory
1460 holddir=`${PWDCMD-pwd}`
1462 topdir=`${PWDCMD-pwd}`
1465 # Conditionalize the makefile for this host machine.
1467 for f in ${host_xmake_file}
1469 if test -f ${srcdir}/config/$f
1471 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1475 # Conditionalize the makefile for this target machine.
1477 for f in ${tmake_file}
1479 if test -f ${srcdir}/config/$f
1481 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1484 tmake_file="${tmake_file_}"
1486 symbolic_link='ln -s'
1488 # If the host doesn't support symlinks, modify CC in
1489 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1490 # Otherwise, we can use "CC=$(CC)".
1492 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1494 cc_set_by_configure="\$(CC)"
1495 quoted_cc_set_by_configure="\$(CC)"
1496 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1497 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1500 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1502 symbolic_link="cp -p"
1506 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1507 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1508 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1509 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1513 out_object_file=`basename $out_file .c`.o
1517 for f in $tm_file; do
1520 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1521 tm_include_list="${tm_include_list} $f"
1524 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1525 tm_include_list="${tm_include_list} config/$f"
1532 for f in $tm_p_file; do
1535 tm_p_file_list="${tm_p_file_list} $f"
1536 tm_p_include_list="${tm_p_include_list} $f"
1539 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1540 tm_p_include_list="${tm_p_include_list} config/$f"
1546 for f in $xm_file; do
1549 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1550 xm_include_list="${xm_include_list} $f"
1553 xm_file_list="${xm_file_list} $f"
1554 xm_include_list="${xm_include_list} $f"
1557 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1558 xm_include_list="${xm_include_list} config/$f"
1564 host_xm_include_list=
1565 for f in $host_xm_file; do
1568 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1569 host_xm_include_list="${host_xm_include_list} $f"
1572 host_xm_file_list="${host_xm_file_list} $f"
1573 host_xm_include_list="${host_xm_include_list} $f"
1576 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1577 host_xm_include_list="${host_xm_include_list} config/$f"
1583 for f in $build_xm_file; do
1586 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1587 build_xm_include_list="${build_xm_include_list} $f"
1589 auto-build.h | auto-host.h )
1590 build_xm_file_list="${build_xm_file_list} $f"
1591 build_xm_include_list="${build_xm_include_list} $f"
1594 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1595 build_xm_include_list="${build_xm_include_list} config/$f"
1600 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1601 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1602 CROSS= AC_SUBST(CROSS)
1603 ALL=all.internal AC_SUBST(ALL)
1604 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1605 if test x$host != x$target
1607 CROSS="-DCROSS_COMPILE"
1609 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1610 case "$host","$target" in
1611 # Darwin crosses can use the host system's libraries and headers,
1612 # because of the fat library support. Of course, it must be the
1613 # same version of Darwin on both sides. Allow the user to
1614 # just say --target=foo-darwin without a version number to mean
1615 # "the version on this system".
1616 *-*-darwin*,*-*-darwin*)
1617 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1618 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1619 if test $hostos = $targetos -o $targetos = darwin ; then
1621 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1626 i?86-*-*,x86_64-*-* \
1627 | powerpc*-*-*,powerpc64*-*-*)
1628 CROSS="$CROSS -DNATIVE_CROSS" ;;
1630 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1631 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1632 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1635 # If this is a cross-compiler that does not
1636 # have its own set of headers then define
1639 # If this is using newlib, without having the headers available now,
1640 # then define inhibit_libc in LIBGCC2_CFLAGS.
1641 # This prevents libgcc2 from containing any code which requires libc
1644 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1645 test x$with_newlib = xyes ; } &&
1646 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1647 inhibit_libc=-Dinhibit_libc
1649 AC_SUBST(inhibit_libc)
1651 # When building gcc with a cross-compiler, we need to adjust things so
1652 # that the generator programs are still built with the native compiler.
1653 # Also, we cannot run fixincludes or fix-header.
1655 # These are the normal (build=host) settings:
1656 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1657 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1658 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1659 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1661 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1663 # Possibly disable fixproto, on a per-target basis.
1664 case ${use_fixproto} in
1669 STMP_FIXPROTO=stmp-fixproto
1672 AC_SUBST(STMP_FIXPROTO)
1674 # And these apply if build != host, or we are generating coverage data
1675 if test x$build != x$host || test "x$coverage_flags" != x
1678 BUILD_PREFIX_1=build-
1679 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1681 if test "x$TARGET_SYSTEM_ROOT" = x; then
1687 # Expand extra_headers to include complete path.
1688 # This substitutes for lots of t-* files.
1690 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1691 for file in ${extra_headers} ; do
1692 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1695 # Define collect2 in Makefile.
1696 case $host_can_use_collect2 in
1698 *) collect2='collect2$(exeext)' ;;
1700 AC_SUBST([collect2])
1702 # Add a definition of USE_COLLECT2 if system wants one.
1703 case $use_collect2 in
1704 no) use_collect2= ;;
1707 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1708 xm_defines="${xm_defines} USE_COLLECT2"
1709 case $host_can_use_collect2 in
1711 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1717 # ---------------------------
1718 # Assembler & linker features
1719 # ---------------------------
1721 # Identify the assembler which will work hand-in-glove with the newly
1722 # built GCC, so that we can examine its features. This is the assembler
1723 # which will be driven by the driver program.
1725 # If build != host, and we aren't building gas in-tree, we identify a
1726 # build->target assembler and hope that it will have the same features
1727 # as the host->target assembler we'll be using.
1728 AC_MSG_CHECKING(what assembler to use)
1731 gcc_cv_gas_major_version=
1732 gcc_cv_gas_minor_version=
1733 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1734 if test -x "$DEFAULT_ASSEMBLER"; then
1735 gcc_cv_as="$DEFAULT_ASSEMBLER"
1736 elif test -x as$host_exeext; then
1737 # Build using assembler in the current directory.
1738 gcc_cv_as=./as$host_exeext
1739 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1740 && test -f ../gas/Makefile \
1741 && test x$build = x$host; then
1742 # Single tree build which includes gas. We want to prefer it
1743 # over whatever linker top-level may have detected, since
1744 # we'll use what we're building after installation anyway.
1746 _gcc_COMPUTE_GAS_VERSION
1747 rm -f as$host_exeext
1748 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1749 in_tree_gas_is_elf=no
1750 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1751 || (grep 'obj_format = multi' ../gas/Makefile \
1752 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1754 in_tree_gas_is_elf=yes
1756 m4_pattern_allow([AS_FOR_TARGET])dnl
1757 elif test -x "$AS_FOR_TARGET"; then
1758 gcc_cv_as="$AS_FOR_TARGET"
1759 elif test -x "$AS" && test x$host = x$target; then
1763 if test "x$gcc_cv_as" = x; then
1764 # Search the same directories that the installed compiler will
1765 # search. Else we may find the wrong assembler and lose. If we
1766 # do not find a suitable assembler binary, then try the user's
1769 # Also note we have to check MD_EXEC_PREFIX before checking the
1770 # user's path. Unfortunately, there is no good way to get at the
1771 # value of MD_EXEC_PREFIX here. So we do a brute force search
1772 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1773 # to be fixed as part of the make/configure rewrite too.
1775 if test "x$exec_prefix" = xNONE; then
1776 if test "x$prefix" = xNONE; then
1777 test_prefix=/usr/local
1782 test_prefix=$exec_prefix
1785 # If the loop below does not find an assembler, then use whatever
1786 # one we can find in the users's path.
1788 if test "x$program_prefix" != xNONE; then
1789 gcc_cv_as=${program_prefix}as$host_exeext
1791 gcc_cv_as=`echo as | sed "${program_transform_name}"`$host_exeext
1794 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1795 $test_prefix/libexec/gcc/$target_noncanonical \
1796 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1797 /usr/lib/gcc/$target_noncanonical \
1798 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1799 $test_prefix/$target_noncanonical/bin"
1801 if test x$host = x$target; then
1802 test_dirs="$test_dirs \
1807 /bsd43/usr/lib/cmplrs/cc \
1808 /usr/cross64/usr/bin \
1809 /usr/lib/cmplrs/cc \
1810 /sysv/usr/lib/cmplrs/cc \
1811 /svr4/usr/lib/cmplrs/cc \
1815 for dir in $test_dirs; do
1816 if test -x $dir/as$host_exeext; then
1817 gcc_cv_as=$dir/as$host_exeext
1822 case $in_tree_gas in
1824 AC_MSG_RESULT("newly built gas")
1827 AC_MSG_RESULT($gcc_cv_as)
1831 # Identify the linker which will work hand-in-glove with the newly
1832 # built GCC, so that we can examine its features. This is the linker
1833 # which will be driven by the driver program.
1835 # If build != host, and we aren't building gas in-tree, we identify a
1836 # build->target linker and hope that it will have the same features
1837 # as the host->target linker we'll be using.
1838 AC_MSG_CHECKING(what linker to use)
1841 gcc_cv_gld_major_version=
1842 gcc_cv_gld_minor_version=
1843 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1844 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1845 if test -x "$DEFAULT_LINKER"; then
1846 gcc_cv_ld="$DEFAULT_LINKER"
1847 elif test -x collect-ld$host_exeext; then
1848 # Build using linker in the current directory.
1849 gcc_cv_ld=./collect-ld$host_exeext
1850 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1851 && test -f ../ld/Makefile \
1852 && test x$build = x$host; then
1853 # Single tree build which includes ld. We want to prefer it
1854 # over whatever linker top-level may have detected, since
1855 # we'll use what we're building after installation anyway.
1857 in_tree_ld_is_elf=no
1858 if (grep 'EMUL = .*elf' ../ld/Makefile \
1859 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1860 in_tree_ld_is_elf=yes
1862 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
1865 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1867 if test x$gcc_cv_gld_version != x; then
1872 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1873 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1875 rm -f collect-ld$host_exeext
1876 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1878 elif test -x "$LD_FOR_TARGET"; then
1879 gcc_cv_ld="$LD_FOR_TARGET"
1880 elif test -x "$LD" && test x$host = x$target; then
1884 if test "x$gcc_cv_ld" = x; then
1885 # Search the same directories that the installed compiler will
1886 # search. Else we may find the wrong linker and lose. If we
1887 # do not find a suitable linker binary, then try the user's
1890 # Also note we have to check MD_EXEC_PREFIX before checking the
1891 # user's path. Unfortunately, there is no good way to get at the
1892 # value of MD_EXEC_PREFIX here. So we do a brute force search
1893 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1894 # to be fixed as part of the make/configure rewrite too.
1896 if test "x$exec_prefix" = xNONE; then
1897 if test "x$prefix" = xNONE; then
1898 test_prefix=/usr/local
1903 test_prefix=$exec_prefix
1906 # If the loop below does not find an linker, then use whatever
1907 # one we can find in the users's path.
1909 if test "x$program_prefix" != xNONE; then
1910 gcc_cv_ld=${program_prefix}ld$host_exeext
1912 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$host_exeext
1915 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1916 $test_prefix/libexec/gcc/$target_noncanonical \
1917 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1918 /usr/lib/gcc/$target_noncanonical \
1919 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1920 $test_prefix/$target_noncanonical/bin"
1922 if test x$host = x$target; then
1923 test_dirs="$test_dirs \
1928 /bsd43/usr/lib/cmplrs/cc \
1929 /usr/cross64/usr/bin \
1930 /usr/lib/cmplrs/cc \
1931 /sysv/usr/lib/cmplrs/cc \
1932 /svr4/usr/lib/cmplrs/cc \
1936 for dir in $test_dirs; do
1937 if test -x $dir/ld$host_exeext; then
1938 gcc_cv_ld=$dir/ld$host_exeext
1945 AC_MSG_RESULT("newly built ld")
1948 AC_MSG_RESULT($gcc_cv_ld)
1952 # Figure out what nm we will be using.
1953 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1954 AC_MSG_CHECKING(what nm to use)
1956 if test -x nm$host_exeext; then
1957 gcc_cv_nm=./nm$host_exeext
1958 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1959 && test -f ../binutils/Makefile; then
1960 # Single tree build which includes binutils.
1962 gcc_cv_nm=./nm$host_exeext
1963 rm -f nm$host_exeext
1964 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1965 elif test "x$program_prefix" != xNONE; then
1966 gcc_cv_nm=${program_prefix}nm$host_exeext
1968 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$host_exeext
1971 yes) AC_MSG_RESULT("newly built nm") ;;
1972 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1975 # Figure out what objdump we will be using.
1976 AC_MSG_CHECKING(what objdump to use)
1978 if test -x objdump$host_exeext; then
1979 gcc_cv_objdump=./objdump$host_exeext
1980 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1981 && test -f ../binutils/Makefile; then
1982 # Single tree build which includes binutils.
1984 gcc_cv_objdump=./objdump$host_exeext
1985 rm -f objdump$host_exeext
1986 $symbolic_link ../binutils/objdump$host_exeext \
1987 objdump$host_exeext 2>/dev/null
1988 elif test "x$program_prefix" != xNONE; then
1989 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1991 gcc_cv_objdump=`echo objdump | \
1992 sed "${program_transform_name}"`$host_exeext
1994 case $in_tree_objdump in
1995 yes) AC_MSG_RESULT("newly built objdump") ;;
1996 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1999 # Figure out what assembler alignment features are present.
2000 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
2004 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
2005 [Define if your assembler supports .balign and .p2align.])])
2007 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
2010 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
2011 [Define if your assembler supports specifying the maximum number
2012 of bytes to skip when using the GAS .p2align command.])])
2014 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
2016 [conftest_label1: .word 0
2018 conftest_label2: .word 0
2020 [if test x$gcc_cv_nm != x; then
2021 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
2022 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
2023 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
2025 else gcc_cv_as_subsection_m1=yes
2027 rm -f conftest.nm1 conftest.nm2
2029 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
2030 [Define if your assembler supports .subsection and .subsection -1 starts
2031 emitting at the beginning of your section.])])
2033 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
2036 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
2038 # .hidden needs to be supported in both the assembler and the linker,
2039 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
2040 # This is irritatingly difficult to feature test for; we have to check the
2041 # date string after the version number. If we've got an in-tree
2042 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2044 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2045 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2050 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2051 [if test $in_tree_ld = yes ; then
2053 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2054 && test $in_tree_ld_is_elf = yes; then
2055 gcc_cv_ld_hidden=yes
2058 gcc_cv_ld_hidden=yes
2059 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2060 if echo "$ld_ver" | grep GNU > /dev/null; then
2062 ld_vers=`echo $ld_ver | sed -n \
2063 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2064 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2065 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2066 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2067 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2068 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2069 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2070 if test 0"$ld_date" -lt 20020404; then
2071 if test -n "$ld_date"; then
2072 # If there was date string, but was earlier than 2002-04-04, fail
2074 elif test -z "$ld_vers"; then
2075 # If there was no date string nor ld version number, something is wrong
2078 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2079 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2080 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2081 test -z "$ld_vers_patch" && ld_vers_patch=0
2082 if test "$ld_vers_major" -lt 2; then
2084 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2085 gcc_cv_ld_hidden="no"
2086 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2094 hppa64*-*-hpux* | ia64*-*-hpux*)
2095 gcc_cv_ld_hidden=yes
2103 libgcc_visibility=no
2104 AC_SUBST(libgcc_visibility)
2105 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2106 libgcc_visibility=yes
2107 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2108 [Define if your assembler and linker support .hidden.])
2111 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2112 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2120 [# GAS versions before 2.11 do not support uleb128,
2121 # despite appearing to.
2122 # ??? There exists an elf-specific test that will crash
2123 # the assembler. Perhaps it's better to figure out whether
2124 # arbitrary sections are supported and try the test.
2125 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2126 if echo "$as_ver" | grep GNU > /dev/null; then
2128 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2129 as_major=`echo $as_ver | sed 's/\..*//'`
2130 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2132 if test $as_major -eq 2 && test $as_minor -lt 11
2134 else gcc_cv_as_leb128=yes
2137 [AC_DEFINE(HAVE_AS_LEB128, 1,
2138 [Define if your assembler supports .sleb128 and .uleb128.])])
2140 # GAS versions up to and including 2.11.0 may mis-optimize
2142 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2150 .section .eh_frame,"aw",@progbits
2152 .4byte .LECIE1-.LSCIE1
2166 .4byte .LEFDE1-.LASFDE1
2168 .4byte .LASFDE1-__FRAME_BEGIN__
2176 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2177 cat > conftest.lit <<EOF
2178 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2179 0010 01000000 12000000 18000000 00000000 ................
2180 0020 08000000 04080000 0044 .........D @&t@
2182 cat > conftest.big <<EOF
2183 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2184 0010 00000001 00000012 00000018 00000000 ................
2185 0020 00000008 04000000 0844 .........D @&t@
2187 # If the assembler didn't choke, and we can objdump,
2188 # and we got the correct data, then succeed.
2189 if test x$gcc_cv_objdump != x \
2190 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2191 | tail -3 > conftest.got \
2192 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2193 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2195 gcc_cv_as_eh_frame=yes
2196 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2197 gcc_cv_as_eh_frame=buggy
2199 # Uh oh, what do we do now?
2200 gcc_cv_as_eh_frame=no
2203 if test $gcc_cv_as_eh_frame = buggy; then
2204 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2205 [Define if your assembler mis-optimizes .eh_frame data.])
2208 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2209 [elf,2,12,0], [--fatal-warnings],
2210 [.section .rodata.str, "aMS", @progbits, 1])
2211 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2212 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2213 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2215 # Thread-local storage - the check is heavily parametrized.
2224 .section ".tdata","awT",@progbits
2227 ldq $27,__tls_get_addr($29) !literal!1
2228 lda $16,foo($29) !tlsgd!1
2229 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2230 ldq $27,__tls_get_addr($29) !literal!2
2231 lda $16,foo($29) !tlsldm!2
2232 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2233 ldq $1,foo($29) !gotdtprel
2234 ldah $2,foo($29) !dtprelhi
2235 lda $3,foo($2) !dtprello
2236 lda $4,foo($29) !dtprel
2237 ldq $1,foo($29) !gottprel
2238 ldah $2,foo($29) !tprelhi
2239 lda $3,foo($2) !tprello
2240 lda $4,foo($29) !tprel'
2243 tls_as_opt=--fatal-warnings
2247 .section ".tdata","awT",@progbits
2251 leal foo@TLSGD(,%ebx,1), %eax
2252 leal foo@TLSLDM(%ebx), %eax
2253 leal foo@DTPOFF(%eax), %edx
2254 movl foo@GOTTPOFF(%ebx), %eax
2255 subl foo@GOTTPOFF(%ebx), %eax
2256 addl foo@GOTNTPOFF(%ebx), %eax
2257 movl foo@INDNTPOFF, %eax
2258 movl $foo@TPOFF, %eax
2259 subl $foo@TPOFF, %eax
2260 leal foo@NTPOFF(%ecx), %eax'
2263 tls_as_opt=--fatal-warnings
2267 .section ".tdata","awT",@progbits
2271 leaq foo@TLSGD(%rip), %rdi
2272 leaq foo@TLSLD(%rip), %rdi
2273 leaq foo@DTPOFF(%rax), %rdx
2274 movq foo@GOTTPOFF(%rip), %rax
2275 movq $foo@TPOFF, %rax'
2278 tls_as_opt=--fatal-warnings
2282 .section ".tdata","awT",@progbits
2285 addl r16 = @ltoff(@dtpmod(foo#)), gp
2286 addl r17 = @ltoff(@dtprel(foo#)), gp
2287 addl r18 = @ltoff(@tprel(foo#)), gp
2288 addl r19 = @dtprel(foo#), gp
2289 adds r21 = @dtprel(foo#), r13
2290 movl r23 = @dtprel(foo#)
2291 addl r20 = @tprel(foo#), gp
2292 adds r22 = @tprel(foo#), r13
2293 movl r24 = @tprel(foo#)'
2296 tls_as_opt=--fatal-warnings
2300 .section ".tdata","awT",@progbits
2308 addi 3,31,ld0@got@tlsgd
2310 addi 3,31,x1@got@tlsld
2313 addis 9,3,x2@dtprel@ha
2314 addi 9,9,x2@dtprel@l
2315 lwz 9,x3@got@tprel(31)
2318 addis 9,2,x2@tprel@ha
2319 addi 9,9,x2@tprel@l'
2322 tls_as_opt="-a32 --fatal-warnings"
2326 .section ".tdata","awT",@progbits
2334 addi 3,2,ld0@got@tlsgd
2340 addi 3,2,x1@got@tlsld
2346 addis 9,3,x2@dtprel@ha
2347 addi 9,9,x2@dtprel@l
2350 ld 9,x3@got@dtprel(2)
2356 tls_as_opt="-a64 --fatal-warnings"
2360 .section ".tdata","awT",@progbits
2369 l %r1,foo@GOTNTPOFF(%r12)
2370 l %r1,0(%r1):tls_load:foo
2371 bas %r14,0(%r1,%r13):tls_gdcall:foo
2372 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2375 tls_as_opt="-m31 --fatal-warnings"
2379 .section ".tdata","awT",@progbits
2387 lg %r1,foo@GOTNTPOFF(%r12)
2388 larl %r1,foo@INDNTPOFF
2389 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2390 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2393 tls_as_opt="-m64 -Aesame --fatal-warnings"
2395 sh-*-* | sh[34]-*-*)
2397 .section ".tdata","awT",@progbits
2407 tls_as_opt=--fatal-warnings
2411 sparc*-sun-solaris2.*)
2418 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2420 .section ".tdata",#alloc,#write,#tls
2423 sethi %tgd_hi22(foo), %o0
2424 add %o0, %tgd_lo10(foo), %o1
2425 add %l7, %o1, %o0, %tgd_add(foo)
2426 call __tls_get_addr, %tgd_call(foo)
2427 sethi %tldm_hi22(foo), %l1
2428 add %l1, %tldm_lo10(foo), %l2
2429 add %l7, %l2, %o0, %tldm_add(foo)
2430 call __tls_get_addr, %tldm_call(foo)
2431 sethi %tldo_hix22(foo), %l3
2432 xor %l3, %tldo_lox10(foo), %l4
2433 add %o0, %l4, %l5, %tldo_add(foo)
2434 sethi %tie_hi22(foo), %o3
2435 add %o3, %tie_lo10(foo), %o3
2436 ld [%l7 + %o3], %o2, %tie_ld(foo)
2437 add %g7, %o2, %o4, %tie_add(foo)
2438 sethi %tle_hix22(foo), %l1
2439 xor %l1, %tle_lox10(foo), %o5
2440 ld [%g7 + %o5], %o1'
2445 .section ".tdata","awT",@progbits
2448 sethi %tgd_hi22(foo), %o0
2449 add %o0, %tgd_lo10(foo), %o1
2450 add %l7, %o1, %o0, %tgd_add(foo)
2451 call __tls_get_addr, %tgd_call(foo)
2452 sethi %tldm_hi22(foo), %l1
2453 add %l1, %tldm_lo10(foo), %l2
2454 add %l7, %l2, %o0, %tldm_add(foo)
2455 call __tls_get_addr, %tldm_call(foo)
2456 sethi %tldo_hix22(foo), %l3
2457 xor %l3, %tldo_lox10(foo), %l4
2458 add %o0, %l4, %l5, %tldo_add(foo)
2459 sethi %tie_hi22(foo), %o3
2460 add %o3, %tie_lo10(foo), %o3
2461 ld [%l7 + %o3], %o2, %tie_ld(foo)
2462 add %g7, %o2, %o4, %tie_add(foo)
2463 sethi %tle_hix22(foo), %l1
2464 xor %l1, %tle_lox10(foo), %o5
2465 ld [%g7 + %o5], %o1'
2468 tls_as_opt="-32 --fatal-warnings"
2473 if test -z "$tls_first_major"; then
2474 : # If we don't have a check, assume no support.
2476 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2477 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2478 [AC_DEFINE(HAVE_AS_TLS, 1,
2479 [Define if your assembler supports thread-local storage.])])
2482 # Target-specific assembler checks.
2484 if test x"$demangler_in_ld" = xyes; then
2485 AC_MSG_CHECKING(linker --demangle support)
2486 gcc_cv_ld_demangle=no
2487 if test $in_tree_ld = yes; then
2488 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \
2489 gcc_cv_ld_demangle=yes
2491 elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then
2492 # Check if the GNU linker supports --demangle option
2493 if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then
2494 gcc_cv_ld_demangle=yes
2497 if test x"$gcc_cv_ld_demangle" = xyes; then
2498 AC_DEFINE(HAVE_LD_DEMANGLE, 1,
2499 [Define if your linker supports --demangle option.])
2501 AC_MSG_RESULT($gcc_cv_ld_demangle)
2505 # All TARGET_ABI_OSF targets.
2506 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2507 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2508 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2511 extbl $3, $2, $3 !lituse_bytoff!1
2512 ldq $2, a($29) !literal!1
2513 ldq $4, b($29) !literal!2
2514 ldq_u $3, 0($2) !lituse_base!1
2515 ldq $27, f($29) !literal!5
2516 jsr $26, ($27), f !lituse_jsr!5
2517 ldah $29, 0($26) !gpdisp!3
2518 lda $0, c($29) !gprel
2519 ldah $1, d($29) !gprelhigh
2520 lda $1, d($1) !gprellow
2521 lda $29, 0($29) !gpdisp!3],,
2522 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2523 [Define if your assembler supports explicit relocations.])])
2527 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2528 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2529 [-no-mul-bug-abort], [.text],,
2530 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2531 [Define if your assembler supports the -no-mul-bug-abort option.])])
2535 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2536 [.register %g2, #scratch],,
2537 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2538 [Define if your assembler supports .register.])])
2540 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2542 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2543 [Define if your assembler supports -relax option.])])
2545 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2546 gcc_cv_as_sparc_ua_pcrel,,
2554 .uaword %r_disp32(foo)],
2555 [if test x$gcc_cv_ld != x \
2556 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2557 gcc_cv_as_sparc_ua_pcrel=yes
2560 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2561 [Define if your assembler and linker support unaligned PC relative relocs.])
2563 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2564 gcc_cv_as_sparc_ua_pcrel_hidden,,
2569 .uaword %r_disp32(foo)
2570 .byte 0x32, 0x33, 0x34
2575 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2576 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2577 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2578 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2579 if $gcc_cv_objdump -R conftest 2> /dev/null \
2580 | grep 'DISP32' > /dev/null 2>&1; then
2583 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2587 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2588 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2589 ]) # unaligned pcrel relocs
2591 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2592 gcc_cv_as_sparc_offsetable_lo10,,
2595 or %g1, %lo(ab) + 12, %g1
2596 or %g1, %lo(ab + 12), %g1],
2597 [if test x$gcc_cv_objdump != x \
2598 && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2599 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2600 gcc_cv_as_offsetable_lo10=yes
2602 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2603 [Define if your assembler supports offsetable %lo().])])
2607 i[34567]86-*-* | x86_64-*-*)
2610 cygwin* | pe | mingw32*)
2611 # Used for DWARF 2 in PE
2612 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2613 gcc_cv_as_ix86_pe_secrel32,
2619 [if test x$gcc_cv_ld != x \
2620 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2621 gcc_cv_as_ix86_pe_secrel32=yes
2624 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2625 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2629 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2630 gcc_cv_as_ix86_filds_fists,
2631 [2,9,0],, [filds mem; fists mem],,
2632 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2633 [Define if your assembler uses the new HImode fild and fist notation.])])
2635 gcc_GAS_CHECK_FEATURE([cmov syntax],
2636 gcc_cv_as_ix86_cmov_sun_syntax,,,
2637 [cmovl.l %edx, %eax],,
2638 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2639 [Define if your assembler supports the Sun syntax for cmov.])])
2641 # This one is used unconditionally by i386.[ch]; it is to be defined
2642 # to 1 if the feature is present, 0 otherwise.
2643 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2644 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2650 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2651 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2652 [Define true if the assembler supports '.long foo@GOTOFF'.])
2656 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2657 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2659 addl r15 = @ltoffx(x#), gp
2661 ld8.mov r16 = [[r15]], x#],,
2662 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2663 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2669 *-*-aix*) conftest_s=' .csect .text[[PR]]
2671 *-*-darwin*) conftest_s=' .text
2673 *) conftest_s=' .text
2677 gcc_GAS_CHECK_FEATURE([mfcr field support],
2678 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2680 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2681 [Define if your assembler supports mfcr field.])])
2685 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2686 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2687 [ lw $4,%gp_rel(foo)($4)],,
2688 [if test x$target_cpu_default = x
2689 then target_cpu_default=MASK_EXPLICIT_RELOCS
2690 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2695 # ??? Not all targets support dwarf2 debug_line, even within a version
2696 # of gas. Moreover, we need to emit a valid instruction to trigger any
2697 # info to the output file. So, as supported targets are added to gas 2.11,
2698 # add some instruction here to (also) show we expect this might work.
2699 # ??? Once 2.11 is released, probably need to add first known working
2700 # version to the per-target configury.
2702 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2703 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2704 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2707 ia64*-*-* | s390*-*-*)
2714 if test x"$insn" != x; then
2716 .file 1 \"conftest.s\"
2719 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2720 gcc_cv_as_dwarf2_debug_line,
2721 [elf,2,11,0],, [$conftest_s],
2722 [# ??? This fails with non-gnu grep. Maybe use objdump?
2723 if grep debug_line conftest.o > /dev/null 2>&1; then
2724 gcc_cv_as_dwarf2_debug_line=yes
2727 # The .debug_line file table must be in the exact order that
2728 # we specified the files, since these indices are also used
2729 # by DW_AT_decl_file. Approximate this test by testing if
2730 # the assembler bitches if the same index is assigned twice.
2731 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2732 gcc_cv_as_dwarf2_file_buggy,,,
2736 if test $gcc_cv_as_dwarf2_debug_line = yes \
2737 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2738 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2739 [Define if your assembler supports dwarf2 .file/.loc directives,
2740 and preserves file table indices exactly as given.])
2743 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2744 gcc_cv_as_gdwarf2_flag,
2745 [elf,2,11,0], [--gdwarf2], [$insn],,
2746 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2747 [Define if your assembler supports the --gdwarf2 option.])])
2749 gcc_GAS_CHECK_FEATURE([--gstabs option],
2750 gcc_cv_as_gstabs_flag,
2751 [elf,2,11,0], [--gstabs], [$insn],
2752 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2753 # and warns about it, but still exits successfully. So check for
2755 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2757 else gcc_cv_as_gstabs_flag=yes
2759 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2760 [Define if your assembler supports the --gstabs option.])])
2763 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2764 gcc_cv_ld_ro_rw_mix=unknown
2765 if test $in_tree_ld = yes ; then
2766 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2767 && test $in_tree_ld_is_elf = yes; then
2768 gcc_cv_ld_ro_rw_mix=read-write
2770 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2771 echo '.section myfoosect, "a"' > conftest1.s
2772 echo '.section myfoosect, "aw"' > conftest2.s
2773 echo '.byte 1' >> conftest2.s
2774 echo '.section myfoosect, "a"' > conftest3.s
2775 echo '.byte 0' >> conftest3.s
2776 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2777 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2778 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2779 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2780 conftest2.o conftest3.o > /dev/null 2>&1; then
2781 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2782 | sed -e '/myfoosect/!d' -e N`
2783 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2784 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2785 gcc_cv_ld_ro_rw_mix=read-only
2787 gcc_cv_ld_ro_rw_mix=read-write
2792 rm -f conftest.* conftest[123].*
2795 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2796 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2797 [Define if your linker links a mix of read-only
2798 and read-write sections into a read-write section.])
2800 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2802 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2803 gcc_cv_ld_eh_frame_hdr=no
2804 if test $in_tree_ld = yes ; then
2805 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2806 && test $in_tree_ld_is_elf = yes; then
2807 gcc_cv_ld_eh_frame_hdr=yes
2809 elif test x$gcc_cv_ld != x; then
2810 # Check if linker supports --eh-frame-hdr option
2811 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2812 gcc_cv_ld_eh_frame_hdr=yes
2815 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2816 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2817 [Define if your linker supports --eh-frame-hdr option.])
2819 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2821 AC_MSG_CHECKING(linker position independent executable support)
2823 if test $in_tree_ld = yes ; then
2824 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2825 && test $in_tree_ld_is_elf = yes; then
2828 elif test x$gcc_cv_ld != x; then
2829 # Check if linker supports -pie option
2830 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2834 if test x"$gcc_cv_ld_pie" = xyes; then
2835 AC_DEFINE(HAVE_LD_PIE, 1,
2836 [Define if your linker supports -pie option.])
2838 AC_MSG_RESULT($gcc_cv_ld_pie)
2844 AC_CACHE_CHECK(linker --as-needed support,
2845 gcc_cv_ld_as_needed,
2846 [gcc_cv_ld_as_needed=no
2847 if test $in_tree_ld = yes ; then
2848 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2849 && test $in_tree_ld_is_elf = yes; then
2850 gcc_cv_ld_as_needed=yes
2852 elif test x$gcc_cv_ld != x; then
2853 # Check if linker supports --as-needed and --no-as-needed options
2854 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2855 gcc_cv_ld_as_needed=yes
2859 if test x"$gcc_cv_ld_as_needed" = xyes; then
2860 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2861 [Define if your linker supports --as-needed and --no-as-needed options.])
2864 if test x$with_sysroot = x && test x$host = x$target \
2865 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2866 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2867 [Define to PREFIX/include if cpp should also search that directory.])
2870 # Find out what GC implementation we want, or may, use.
2872 [ --with-gc={page,zone} choose the garbage collection mechanism to use
2879 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2884 echo "Using $GGC for garbage collection."
2886 # Use the system's zlib library.
2888 zlibinc="-I\$(srcdir)/../zlib"
2889 AC_ARG_WITH(system-zlib,
2890 [ --with-system-zlib use installed libz],
2897 dnl Very limited version of automake's enable-maintainer-mode
2899 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2900 dnl maintainer-mode is disabled by default
2901 AC_ARG_ENABLE(maintainer-mode,
2902 [ --enable-maintainer-mode
2903 enable make rules and dependencies not useful
2904 (and sometimes confusing) to the casual installer],
2905 maintainer_mode=$enableval,
2908 AC_MSG_RESULT($maintainer_mode)
2910 if test "$maintainer_mode" = "yes"; then
2917 AC_MSG_CHECKING([whether to use libbanshee for points-to alias analysis])
2918 AC_ARG_WITH(libbanshee,
2919 [ --with-libbanshee enable libbanshee],
2920 libbanshee="$with_libbanshee",
2923 if test x"$libbanshee" = xyes; then
2924 BANSHEELIB="../libbanshee/points-to/libandersen.a ../libbanshee/engine/libbansheeengine.a ../libbanshee/libcompat/libbansheecompat.a "
2925 BANSHEEINC="-I\$(srcdir)/../libbanshee/libcompat -I\$(srcdir)/../libbanshee -I\$(srcdir)/../libbanshee/points-to"
2926 ANDER="tree-alias-ander.o"
2927 AC_DEFINE(HAVE_BANSHEE, 1, [Define if BANSHEE is available])
2933 AC_MSG_RESULT($with_libbanshee)
2936 AC_SUBST(BANSHEEINC)
2937 AC_SUBST(BANSHEELIB)
2943 # Make empty files to contain the specs and options for each language.
2944 # Then add #include lines to for a compiler that has specs and/or options.
2949 for subdir in . $subdirs
2951 if test -f $srcdir/$subdir/lang.opt; then
2952 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2954 if test -f $srcdir/$subdir/lang-specs.h; then
2955 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2957 if test -f $srcdir/$subdir/$subdir-tree.def; then
2958 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2962 # These (without "all_") are set in each config-lang.in.
2963 # `language' must be a single word so is spelled singularly.
2968 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders libada-mk'
2969 # List of language makefile fragments.
2971 # List of language subdirectory makefiles. Deprecated.
2973 # Files for gengtype
2974 all_gtfiles="$target_gtfiles"
2975 # Files for gengtype with language
2976 all_gtfiles_files_langs=
2977 all_gtfiles_files_files=
2979 # Add the language fragments.
2980 # Languages are added via two mechanisms. Some information must be
2981 # recorded in makefile variables, these are defined in config-lang.in.
2982 # We accumulate them and plug them into the main Makefile.
2983 # The other mechanism is a set of hooks for each of the main targets
2984 # like `clean', `install', etc.
2986 language_hooks="Make-hooks"
2996 . ${srcdir}/$s/config-lang.in
2997 if test "x$language" = x
2999 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
3002 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
3003 if test -f ${srcdir}/$s/Makefile.in
3004 then all_lang_makefiles="$s/Makefile"
3006 all_languages="$all_languages $language"
3007 if test "x$boot_language" = xyes
3009 all_boot_languages="$all_boot_languages $language"
3011 all_compilers="$all_compilers $compilers"
3012 all_stagestuff="$all_stagestuff $stagestuff"
3013 all_outputs="$all_outputs $outputs"
3014 all_gtfiles="$all_gtfiles $gtfiles"
3017 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3018 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3022 # Pick up gtfiles for c
3025 . ${srcdir}/c-config-lang.in
3026 all_gtfiles="$all_gtfiles $gtfiles"
3029 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
3030 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
3034 for language in $all_languages
3036 check_languages="$check_languages check-$language"
3039 # We link each language in with a set of hooks, reached indirectly via
3044 target_list="all.build all.cross start.encap rest.encap tags \
3045 install-normal install-common install-man \
3046 uninstall info man srcextra srcman srcinfo \
3047 mostlyclean clean distclean maintainer-clean \
3048 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
3049 for t in $target_list
3052 for lang in $all_languages
3056 echo "lang.$t: $x" >> Make-hooks
3065 echo "dir ." > .gdbinit
3066 echo "dir ${srcdir}" >> .gdbinit
3067 if test x$gdb_needs_out_file_path = xyes
3069 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3071 if test "x$subdirs" != x; then
3074 echo "dir ${srcdir}/$s" >> .gdbinit
3077 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3079 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3080 # absolute path for gcc_tooldir based on inserting the number of up-directory
3081 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3082 # $(libsubdir)/@(unlibsubdir) based path.
3083 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3084 # make and thus we'd get different behavior depending on where we built the
3086 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3087 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3089 changequote(<<, >>)dnl
3090 # An explanation of the sed strings:
3091 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3092 # -e 's|/$||' match a trailing forward slash and eliminates it
3093 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3094 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3096 # (*) Note this pattern overwrites the first character of the string
3097 # with a forward slash if one is not already present. This is not a
3098 # problem because the exact names of the sub-directories concerned is
3099 # unimportant, just the number of them matters.
3101 # The practical upshot of these patterns is like this:
3103 # prefix exec_prefix result
3104 # ------ ----------- ------
3106 # /foo/ /foo/bar ../
3107 # /foo /foo/bar/ ../
3108 # /foo/ /foo/bar/ ../
3109 # /foo /foo/bar/ugg ../../
3112 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3113 changequote([, ])dnl
3115 AC_SUBST(gcc_tooldir)
3118 # Find a directory in which to install a shared libgcc.
3120 AC_ARG_ENABLE(version-specific-runtime-libs,
3121 [ --enable-version-specific-runtime-libs
3122 specify that runtime libraries should be
3123 installed in a compiler-specific directory])
3125 AC_ARG_WITH(slibdir,
3126 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3127 slibdir="$with_slibdir",
3128 if test "${enable_version_specific_runtime_libs+set}" = set; then
3129 slibdir='$(libsubdir)'
3130 elif test "$host" != "$target"; then
3131 slibdir='$(build_tooldir)/lib'
3137 objdir=`${PWDCMD-pwd}`
3140 # Substitute configuration variables
3143 AC_SUBST(all_boot_languages)
3144 AC_SUBST(all_compilers)
3145 AC_SUBST(all_gtfiles)
3146 AC_SUBST(all_gtfiles_files_langs)
3147 AC_SUBST(all_gtfiles_files_files)
3148 AC_SUBST(all_lang_makefrags)
3149 AC_SUBST(all_lang_makefiles)
3150 AC_SUBST(all_languages)
3151 AC_SUBST(all_stagestuff)
3152 AC_SUBST(build_exeext)
3153 AC_SUBST(build_install_headers_dir)
3154 AC_SUBST(build_xm_file_list)
3155 AC_SUBST(build_xm_include_list)
3156 AC_SUBST(build_xm_defines)
3157 AC_SUBST(check_languages)
3158 AC_SUBST(cc_set_by_configure)
3159 AC_SUBST(quoted_cc_set_by_configure)
3160 AC_SUBST(cpp_install_dir)
3161 AC_SUBST(xmake_file)
3162 AC_SUBST(tmake_file)
3163 AC_SUBST(extra_gcc_objs)
3164 AC_SUBST(extra_headers_list)
3165 AC_SUBST(extra_objs)
3166 AC_SUBST(extra_parts)
3167 AC_SUBST(extra_passes)
3168 AC_SUBST(extra_programs)
3169 AC_SUBST(float_h_file)
3170 AC_SUBST(gcc_config_arguments)
3171 AC_SUBST(gcc_gxx_include_dir)
3172 AC_SUBST(libstdcxx_incdir)
3173 AC_SUBST(gcc_version)
3174 AC_SUBST(gcc_version_full)
3175 AC_SUBST(gcc_version_trigger)
3176 AC_SUBST(host_exeext)
3177 AC_SUBST(host_xm_file_list)
3178 AC_SUBST(host_xm_include_list)
3179 AC_SUBST(host_xm_defines)
3180 AC_SUBST(out_host_hook_obj)
3182 AC_SUBST(lang_opt_files)
3183 AC_SUBST(lang_specs_files)
3184 AC_SUBST(lang_tree_files)
3185 AC_SUBST(local_prefix)
3187 AC_SUBST(objc_boehm_gc)
3189 AC_SUBST(out_object_file)
3190 AC_SUBST(stage_prefix_set_by_configure)
3191 AC_SUBST(quoted_stage_prefix_set_by_configure)
3192 AC_SUBST(symbolic_link)
3193 AC_SUBST(thread_file)
3194 AC_SUBST(tm_file_list)
3195 AC_SUBST(tm_include_list)
3196 AC_SUBST(tm_defines)
3197 AC_SUBST(tm_p_file_list)
3198 AC_SUBST(tm_p_include_list)
3199 AC_SUBST(xm_file_list)
3200 AC_SUBST(xm_include_list)
3201 AC_SUBST(xm_defines)
3202 AC_SUBST(target_noncanonical)
3203 AC_SUBST(c_target_objs)
3204 AC_SUBST(cxx_target_objs)
3205 AC_SUBST(target_cpu_default)
3207 AC_SUBST_FILE(language_hooks)
3209 # If it doesn't already exist, create document directory
3210 echo "checking for the document directory." 1>&2
3211 if test -d doc ; then
3218 if test x${build} = x${host} ; then
3219 if test x${host} = x${target} ; then
3220 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3222 echo "Links are now set up to build a cross-compiler" 1>&2
3223 echo " from ${host} to ${target}." 1>&2
3226 if test x${host} = x${target} ; then
3227 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3228 echo " for ${target}." 1>&2
3230 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3231 echo " from ${host} to ${target}." 1>&2
3235 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3236 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3238 # Configure the subdirectories
3239 # AC_CONFIG_SUBDIRS($subdirs)
3241 # Create the Makefile
3242 # and configure language subdirectories
3243 AC_CONFIG_FILES($all_outputs)
3245 AC_CONFIG_COMMANDS([default],
3247 case ${CONFIG_HEADERS} in
3248 *auto-host.h:config.in*)
3251 # Make sure all the subdirs exist.
3254 test -d $d || mkdir $d
3256 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3257 # bootstrapping and the installation procedure can still use
3258 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3259 # FLAGS_TO_PASS has been modified to solve the problem there.
3260 # This is virtually a duplicate of what happens in configure.lang; we do
3261 # an extra check to make sure this only happens if ln -s can be used.
3262 if test "$symbolic_link" = "ln -s"; then
3263 for d in ${subdirs} fixinc ; do
3264 STARTDIR=`${PWDCMD-pwd}`
3266 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3269 $symbolic_link ../$t $t 2>/dev/null
3276 symbolic_link='$symbolic_link'