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 # ----------------------
215 # Find default assembler
216 # ----------------------
220 [ --with-gnu-as arrange to work with GNU as],
221 gas_flag="$with_gnu_as",
225 [ --with-as arrange to use the specified as (full pathname)],
226 DEFAULT_ASSEMBLER="$with_as")
227 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
228 if test ! -x "$DEFAULT_ASSEMBLER"; then
229 AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
230 elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
233 AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
234 [Define to enable the use of a default assembler.])
237 AC_MSG_CHECKING([whether a default assembler was specified])
238 if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
239 if test x"$gas_flag" = x"no"; then
240 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
242 AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
252 # If a non-executable a.out is present (e.g. created by GNU as above even if
253 # invoked with -v only), the IRIX 6 native ld just overwrites the existing
254 # file, even when creating an executable, so an execution test fails.
255 # Remove possible default executable files to avoid this.
257 # FIXME: This really belongs into AC_PROG_CC and can be removed once
258 # Autoconf includes it.
259 rm -f a.out a.exe b.out
261 # Find the native compiler
264 # autoconf is lame and doesn't give us any substitution variable for this.
265 if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
266 NO_MINUS_C_MINUS_O=yes
268 OUTPUT_OPTION='-o $@'
270 AC_SUBST(NO_MINUS_C_MINUS_O)
271 AC_SUBST(OUTPUT_OPTION)
273 # -------------------------
274 # Check C compiler features
275 # -------------------------
282 # sizeof(char) is 1 by definition.
283 AC_COMPILE_CHECK_SIZEOF(void *)
284 AC_COMPILE_CHECK_SIZEOF(short)
285 AC_COMPILE_CHECK_SIZEOF(int)
286 AC_COMPILE_CHECK_SIZEOF(long)
287 if test $ac_cv_c_long_long = yes; then
288 AC_COMPILE_CHECK_SIZEOF(long long)
290 if test $ac_cv_c___int64 = yes; then
291 AC_COMPILE_CHECK_SIZEOF(__int64)
294 # ---------------------
295 # Warnings and checking
296 # ---------------------
298 # Check $CC warning features (if it's GCC).
299 # We want to use -pedantic, but we don't want warnings about
302 # So, we only use -pedantic if we can disable those warnings.
305 [whether ${CC} accepts -Wno-long-long],
306 [ac_cv_prog_cc_w_no_long_long],
307 [save_CFLAGS="$CFLAGS"
308 CFLAGS="-Wno-long-long"
309 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
310 [ac_cv_prog_cc_w_no_long_long=yes],
311 [ac_cv_prog_cc_w_no_long_long=no])
312 CFLAGS="$save_CFLAGS"
316 [whether ${CC} accepts -Wno-variadic-macros],
317 [ac_cv_prog_cc_w_no_variadic_macros],
318 [save_CFLAGS="$CFLAGS"
319 CFLAGS="-Wno-variadic-macros"
320 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
321 [ac_cv_prog_cc_w_no_variadic_macros=yes],
322 [ac_cv_prog_cc_w_no_variadic_macros=no])
323 CFLAGS="$save_CFLAGS"
327 if test $ac_cv_prog_cc_w_no_long_long = yes \
328 && test $ac_cv_prog_cc_w_no_variadic_macros = yes ; then
329 strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros"
331 AC_SUBST(strict1_warn)
333 # Add -Wold-style-definition if it's accepted
335 [whether ${CC} accepts -Wold-style-definition],
336 [ac_cv_prog_cc_w_old_style_definition],
337 [save_CFLAGS="$CFLAGS"
338 CFLAGS="-Wold-style-definition"
339 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
340 [ac_cv_prog_cc_w_old_style_definition=yes],
341 [ac_cv_prog_cc_w_old_style_definition=no])
342 CFLAGS="$save_CFLAGS"
344 if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
345 strict1_warn="${strict1_warn} -Wold-style-definition"
348 # Enable -Werror, period.
349 AC_ARG_ENABLE(werror_always,
350 [ --enable-werror-always enable -Werror always], [],
351 [enable_werror_always=no])
352 if test x${enable_werror_always} = xyes ; then
353 strict1_warn="${strict1_warn} -Werror"
357 # If the native compiler is GCC, we can enable warnings even in stage1.
358 # That's useful for people building cross-compilers, or just running a
361 if test "x$GCC" = "xyes"; then
362 warn_cflags='$(GCC_WARN_CFLAGS)'
364 AC_SUBST(warn_cflags)
366 # Enable -Werror in bootstrap stage2 and later.
367 # Change the default to "no" on release branches.
368 AC_ARG_ENABLE(werror,
369 [ --enable-werror enable -Werror in bootstrap stage2 and later], [],
371 if test x$enable_werror = xyes ; then
376 # Enable expensive internal checks
377 AC_ARG_ENABLE(checking,
378 [ --enable-checking[=LIST]
379 enable expensive run-time checks. With LIST,
380 enable only specific categories of checks.
381 Categories are: misc,tree,rtl,rtlflag,gc,gcac,fold;
382 default is misc,tree,gc,rtlflag],
388 ac_gc_always_collect=
390 case "${enableval}" in
391 yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
392 ac_rtlflag_checking=1 ;;
394 *) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
395 set fnord $enableval; shift
400 misc) ac_checking=1 ;;
401 tree) ac_tree_checking=1 ;;
402 rtlflag) ac_rtlflag_checking=1 ;;
403 rtl) ac_rtl_checking=1 ;;
404 gc) ac_gc_checking=1 ;;
405 gcac) ac_gc_always_collect=1 ;;
406 fold) ac_fold_checking=1 ;;
407 valgrind) ac_checking_valgrind=1 ;;
408 *) AC_MSG_ERROR(unknown check category $check) ;;
414 # Enable some checks by default for development versions of GCC
415 [ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
417 if test x$ac_checking != x ; then
418 AC_DEFINE(ENABLE_CHECKING, 1,
419 [Define if you want more run-time sanity checks. This one gets a grab
420 bag of miscellaneous but relatively cheap checks.])
421 nocommon_flag=-fno-common
423 AC_SUBST(nocommon_flag)
424 if test x$ac_tree_checking != x ; then
425 AC_DEFINE(ENABLE_TREE_CHECKING, 1,
426 [Define if you want all operations on trees (the basic data
427 structure of the front ends) to be checked for dynamic type safety
428 at runtime. This is moderately expensive.])
430 if test x$ac_rtl_checking != x ; then
431 AC_DEFINE(ENABLE_RTL_CHECKING, 1,
432 [Define if you want all operations on RTL (the basic data structure
433 of the optimizer and back end) to be checked for dynamic type safety
434 at runtime. This is quite expensive.])
436 if test x$ac_rtlflag_checking != x ; then
437 AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
438 [Define if you want RTL flag accesses to be checked against the RTL
439 codes that are supported for each access macro. This is relatively
442 if test x$ac_gc_checking != x ; then
443 AC_DEFINE(ENABLE_GC_CHECKING, 1,
444 [Define if you want the garbage collector to do object poisoning and
445 other memory allocation checks. This is quite expensive.])
447 if test x$ac_gc_always_collect != x ; then
448 AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
449 [Define if you want the garbage collector to operate in maximally
450 paranoid mode, validating the entire heap and collecting garbage at
451 every opportunity. This is extremely expensive.])
453 if test x$ac_fold_checking != x ; then
454 AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
455 [Define if you want fold checked that it never destructs its argument.
456 This is quite expensive.])
458 valgrind_path_defines=
461 dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
462 dnl # an if statement. This was the source of very frustrating bugs
463 dnl # in converting to autoconf 2.5x!
464 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
466 if test x$ac_checking_valgrind != x ; then
467 # It is certainly possible that there's valgrind but no valgrind.h.
468 # GCC relies on making annotations so we must have both.
469 AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
471 [#include <valgrind/memcheck.h>
472 #ifndef VALGRIND_DISCARD
473 #error VALGRIND_DISCARD not defined
475 [gcc_cv_header_valgrind_memcheck_h=yes],
476 [gcc_cv_header_valgrind_memcheck_h=no])
477 AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
478 AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
480 [#include <memcheck.h>
481 #ifndef VALGRIND_DISCARD
482 #error VALGRIND_DISCARD not defined
484 [gcc_cv_header_memcheck_h=yes],
485 gcc_cv_header_memcheck_h=no)
486 AC_MSG_RESULT($gcc_cv_header_memcheck_h)
487 AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
488 [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
489 if test "x$valgrind_path" = "x" \
490 || (test $have_valgrind_h = no \
491 && test $gcc_cv_header_memcheck_h = no \
492 && test $gcc_cv_header_valgrind_memcheck_h = no); then
493 AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
495 valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
496 valgrind_command="$valgrind_path -q"
497 AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
498 [Define if you want to run subprograms and generated programs
499 through valgrind (a memory checker). This is extremely expensive.])
500 if test $gcc_cv_header_valgrind_memcheck_h = yes; then
501 AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
502 [Define if valgrind's valgrind/memcheck.h header is installed.])
504 if test $gcc_cv_header_memcheck_h = yes; then
505 AC_DEFINE(HAVE_MEMCHECK_H, 1,
506 [Define if valgrind's memcheck.h header is installed.])
509 AC_SUBST(valgrind_path_defines)
510 AC_SUBST(valgrind_command)
512 # Enable code coverage collection
513 AC_ARG_ENABLE(coverage,
514 [ --enable-coverage[=LEVEL]
515 enable compiler\'s code coverage collection.
516 Use to measure compiler performance and locate
517 unused parts of the compiler. With LEVEL, specify
518 optimization. Values are opt, noopt,
520 [case "${enableval}" in
522 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
525 coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
528 # a.k.a. --disable-coverage
532 AC_MSG_ERROR(unknown coverage setting $enableval)
536 AC_SUBST(coverage_flags)
538 AC_ARG_ENABLE(gather-detailed-mem-stats,
539 [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
540 [enable_gather_detailed_mem_stats=no])
541 if test x$enable_gather_detailed_mem_stats = xyes ; then
542 AC_DEFINE(GATHER_STATISTICS, 1,
543 [Define to enable detailed memory allocation stats gathering.])
546 AC_ARG_ENABLE(tree-browser,
547 [ --enable-tree-browser enable the tree browsing routines for debugging], [],
548 [enable_tree_browser=no])
549 if test x$enable_tree_browser = xyes ; then
550 TREEBROWSER=tree-browser.o
552 AC_SUBST(TREEBROWSER)
554 # -------------------------------
555 # Miscenalleous configure options
556 # -------------------------------
560 [ --with-stabs arrange to use stabs instead of host debug format],
564 # Determine whether or not multilibs are enabled.
565 AC_ARG_ENABLE(multilib,
566 [ --enable-multilib enable library support for multiple ABIs],
567 [], [enable_multilib=yes])
568 AC_SUBST(enable_multilib)
570 # Enable __cxa_atexit for C++.
571 AC_ARG_ENABLE(__cxa_atexit,
572 [ --enable-__cxa_atexit enable __cxa_atexit for C++],
576 # Pass with no value to take the default
577 # Pass with a value to specify a thread package
578 AC_ARG_ENABLE(threads,
579 [ --enable-threads enable thread usage for target GCC
580 --enable-threads=LIB use LIB thread package for target GCC],,
583 AC_ARG_ENABLE(objc-gc,
584 [ --enable-objc-gc enable the use of Boehm's garbage collector with
585 the GNU Objective-C runtime],
586 if test x$enable_objc_gc = xno; then
594 [ --with-dwarf2 force the default debug format to be DWARF 2],
595 dwarf2="$with_dwarf2",
598 AC_ARG_ENABLE(shared,
599 [ --disable-shared don't provide a shared libgcc],
601 case $enable_shared in
605 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
606 for pkg in $enableval; do
607 if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
614 ], [enable_shared=yes])
615 AC_SUBST(enable_shared)
618 [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
620 case ${with_sysroot} in
621 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
622 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
625 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
626 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
628 if test "x$exec_prefix" = xNONE; then
629 if test "x$prefix" = xNONE; then
630 test_prefix=/usr/local
635 test_prefix=$exec_prefix
637 case ${TARGET_SYSTEM_ROOT} in
638 "${test_prefix}"|"${test_prefix}/"*|\
639 '${exec_prefix}'|'${exec_prefix}/'*)
640 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
641 TARGET_SYSTEM_ROOT_DEFINE="$t"
646 TARGET_SYSTEM_ROOT_DEFINE=
647 CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
649 AC_SUBST(TARGET_SYSTEM_ROOT)
650 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
651 AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
653 # Build with intermodule optimisations
654 AC_ARG_ENABLE(intermodule,
655 [ --enable-intermodule build the compiler in one step],
656 [case ${enable_intermodule} in
657 yes) onestep="-onestep";;
663 # Sanity check enable_languages in case someone does not run the toplevel
664 # configure # script.
665 AC_ARG_ENABLE(languages,
666 [ --enable-languages=LIST specify which front-ends to build],
667 [case ,${enable_languages}, in
669 # go safe -- we cannot be much sure without the toplevel
671 # analysis of which target libs are present and usable
675 AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
680 enable_languages=c,${enable_languages}
683 [enable_languages=c])
686 for lang in ${srcdir}/*/config-lang.in
689 # The odd quoting in the next line works around
690 # an apparent bug in bash 1.12 on linux.
692 ${srcdir}/[*]/config-lang.in) ;;
694 lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
695 if test "x$lang_alias" = x
697 echo "$lang doesn't set \$language." 1>&2
700 case ",$enable_languages," in
702 subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
710 # -------------------------
711 # Checks for other programs
712 # -------------------------
716 # Find some useful tools
718 # We need awk to run opts.sh (to create options.c and options.h).
719 # Bail out if it's missing.
721 "") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
729 # See if cmp has --ignore-initial.
730 gcc_AC_PROG_CMP_IGNORE_INITIAL
732 # See if we have the mktemp command.
733 AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
735 # Do we have a single-tree copy of texinfo?
736 if test -f $srcdir/../texinfo/Makefile.in; then
737 MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
738 gcc_cv_prog_makeinfo_modern=yes
739 AC_MSG_RESULT([Using makeinfo from the unified source tree.])
741 # See if makeinfo has been installed and is modern enough
742 # that we can use it.
743 gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
744 [GNU texinfo.* \([0-9][0-9.]*\)],
748 if test $gcc_cv_prog_makeinfo_modern = no; then
750 *** Makeinfo is missing or too old.
751 *** Info documentation will not be built.])
754 BUILD_INFO=info AC_SUBST(BUILD_INFO)
757 # Is pod2man recent enough to regenerate manpages?
758 AC_MSG_CHECKING([for recent Pod::Man])
759 if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
761 GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
768 dnl Don't use AC_PROG_LEX; we insist on flex.
769 dnl LEXLIB is not useful in gcc.
770 if test x${build} = x${host} && test -f $srcdir/../flex/skel.c; then
771 FLEX='$(objdir)/../flex/flex'
773 AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
777 # The -L switch is so bison can find its skeleton file.
778 if test x${build} = x${host} && test -f $srcdir/../bison/bison.simple; then
779 BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
781 AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
784 # --------------------
785 # Checks for C headers
786 # --------------------
788 AC_MSG_CHECKING(for GNU C library)
789 AC_CACHE_VAL(gcc_cv_glibc,
791 [#include <features.h>],[
792 #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
793 #error Not a GNU C library system
797 AC_MSG_RESULT($gcc_cv_glibc)
798 if test $gcc_cv_glibc = yes; then
799 AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
802 # Need to reject headers which give warnings, so that the -Werror bootstrap
803 # works later. *sigh* This needs to come before all header checks.
811 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
812 fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
813 sys/resource.h sys/param.h sys/times.h sys/stat.h \
814 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
816 # Check for thread headers.
817 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
818 AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
820 # These tests can't be done till we know if we have limits.h.
828 # Stage specific cflags for build.
834 stage1_cflags="-Wa,-J"
840 # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
841 # sources; use -no-cpp-precomp to get to GNU cpp.
842 # Apple's GCC has bugs in designated initializer handling, so disable
844 stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
847 AC_SUBST(stage1_cflags)
849 # These libraries may be used by collect2.
850 # We may need a special search path to get them linked.
851 AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
853 for libs in '' -lld -lmld \
854 '-L/usr/lib/cmplrs/cc2.11 -lmld' \
855 '-L/usr/lib/cmplrs/cc3.11 -lmld'
858 AC_TRY_LINK_FUNC(ldopen,
859 [gcc_cv_collect2_libs="$libs"; break])
862 test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
863 case $gcc_cv_collect2_libs in
865 *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
867 AC_SUBST(COLLECT2_LIBS)
869 # When building Ada code on Alpha, we need exc_resume which is usually in
870 # -lexc. So test for it.
873 AC_SEARCH_LIBS(exc_resume, exc)
876 AC_SUBST(GNAT_LIBEXC)
878 # Some systems put ldexp and frexp in libm instead of libc; assume
879 # they're both in the same place. jcf-dump needs them.
882 AC_SEARCH_LIBS(ldexp, m)
887 # Use <inttypes.h> only if it exists,
888 # doesn't clash with <sys/types.h>, and declares intmax_t.
889 AC_MSG_CHECKING(for inttypes.h)
890 AC_CACHE_VAL(gcc_cv_header_inttypes_h,
892 [#include <sys/types.h>
893 #include <inttypes.h>],
895 [gcc_cv_header_inttypes_h=yes],
896 gcc_cv_header_inttypes_h=no)])
897 AC_MSG_RESULT($gcc_cv_header_inttypes_h)
898 if test $gcc_cv_header_inttypes_h = yes; then
899 AC_DEFINE(HAVE_INTTYPES_H, 1,
900 [Define if you have a working <inttypes.h> header file.])
903 dnl Disabled until we have a complete test for buggy enum bitfields.
904 dnl gcc_AC_C_ENUM_BF_UNSIGNED
906 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
907 sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
908 fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
909 scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
912 if test x$ac_cv_func_mbstowcs = xyes; then
913 AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
914 [ AC_TRY_RUN([#include <stdlib.h>
920 gcc_cv_func_mbstowcs_works=yes,
921 gcc_cv_func_mbstowcs_works=no,
922 gcc_cv_func_mbstowcs_works=yes)])
923 if test x$gcc_cv_func_mbstowcs_works = xyes; then
924 AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
925 [Define this macro if mbstowcs does not crash when its
926 first argument is NULL.])
930 AC_CHECK_TYPE(ssize_t, int)
932 # Try to determine the array type of the second argument of getgroups
933 # for the target system (int or gid_t).
935 if test "${target}" = "${build}"; then
936 TARGET_GETGROUPS_T=$ac_cv_type_getgroups
939 # This condition may need some tweaking. It should include all
940 # targets where the array type of the second argument of getgroups
941 # is int and the type of gid_t is not equivalent to int.
942 *-*-sunos* | *-*-ultrix*)
943 TARGET_GETGROUPS_T=int
946 TARGET_GETGROUPS_T=gid_t
950 AC_SUBST(TARGET_GETGROUPS_T)
952 gcc_AC_FUNC_PRINTF_PTR
953 gcc_AC_FUNC_MMAP_BLACKLIST
957 # Under VMS, vfork works very differently than on Unix. The standard test
958 # won't work, and it isn't easily adaptable. It makes more sense to
960 ac_cv_func_vfork_works=yes
966 # Until we have in-tree GNU iconv:
968 AC_SUBST(LIBICONV_DEP)
972 # We will need to find libiberty.h and ansidecl.h
973 saved_CFLAGS="$CFLAGS"
974 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
975 gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
976 strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
977 fprintf_unlocked strstr errno snprintf vasprintf \
978 malloc realloc calloc free basename getopt clock, , ,[
979 #include "ansidecl.h"
980 #include "system.h"])
982 gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
983 #include "ansidecl.h"
985 #ifdef HAVE_SYS_RESOURCE_H
986 #include <sys/resource.h>
991 #include "ansidecl.h"
993 #ifdef HAVE_SYS_RESOURCE_H
994 #include <sys/resource.h>
996 ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
997 [Define to \`long' if <sys/resource.h> doesn't define.])])
999 gcc_AC_CHECK_DECLS(ldgetname, , ,[
1000 #include "ansidecl.h"
1007 gcc_AC_CHECK_DECLS(times, , ,[
1008 #include "ansidecl.h"
1010 #ifdef HAVE_SYS_TIMES_H
1011 #include <sys/times.h>
1015 # More time-related stuff.
1016 AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
1018 #include "ansidecl.h"
1020 #ifdef HAVE_SYS_TIMES_H
1021 #include <sys/times.h>
1023 ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
1024 if test $ac_cv_struct_tms = yes; then
1025 AC_DEFINE(HAVE_STRUCT_TMS, 1,
1026 [Define if <sys/times.h> defines struct tms.])
1029 # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
1030 # revisit after autoconf 2.50.
1031 AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
1033 #include "ansidecl.h"
1035 ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
1036 if test $gcc_cv_type_clock_t = yes; then
1037 AC_DEFINE(HAVE_CLOCK_T, 1,
1038 [Define if <time.h> defines clock_t.])
1041 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
1042 CFLAGS="$saved_CFLAGS"
1044 gcc_AC_INITFINI_ARRAY
1046 # mkdir takes a single argument on some systems.
1047 gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
1055 # With Setjmp/Longjmp based exception handling.
1056 AC_ARG_ENABLE(sjlj-exceptions,
1057 [ --enable-sjlj-exceptions
1058 arrange to use setjmp/longjmp exception handling],
1059 [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
1060 AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
1061 [Define 0/1 to force the choice for exception handling model.])])
1063 if test x$host = x$target; then
1064 AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
1066 use_libunwind_default=no
1068 # Use libunwind based exception handling.
1069 AC_ARG_ENABLE(libunwind-exceptions,
1070 [ --enable-libunwind-exceptions force use libunwind for exceptions],
1071 use_libunwind_exceptions=$enableval,
1072 use_libunwind_exceptions=$use_libunwind_default)
1073 if test x"$use_libunwind_exceptions" = xyes; then
1074 AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
1075 [Define if gcc should use -lunwind.])
1078 # --------------------------------------------------------
1079 # Build, host, and target specific configuration fragments
1080 # --------------------------------------------------------
1082 # Collect build-machine-specific information.
1083 . ${srcdir}/config.build
1085 # Collect host-machine-specific information.
1086 . ${srcdir}/config.host
1090 # Collect target-machine-specific information.
1091 . ${srcdir}/config.gcc
1093 extra_objs="${host_extra_objs} ${extra_objs}"
1094 extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
1096 # Default the target-machine variables that were not explicitly set.
1097 if test x"$tm_file" = x
1098 then tm_file=$cpu_type/$cpu_type.h; fi
1100 if test x"$extra_headers" = x
1101 then extra_headers=; fi
1103 if test x$md_file = x
1104 then md_file=$cpu_type/$cpu_type.md; fi
1106 if test x$out_file = x
1107 then out_file=$cpu_type/$cpu_type.c; fi
1109 if test x"$tmake_file" = x
1110 then tmake_file=$cpu_type/t-$cpu_type
1113 if test x"$dwarf2" = xyes
1114 then tm_file="$tm_file tm-dwarf2.h"
1117 # Say what files are being used for the output code and MD file.
1118 echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
1119 echo "Using \`$srcdir/config/$md_file' as machine description file."
1121 # If any of the xm_file variables contain nonexistent files, warn
1122 # about them and drop them.
1125 for x in $build_xm_file; do
1126 if test -f $srcdir/config/$x
1128 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1134 for x in $host_xm_file; do
1135 if test -f $srcdir/config/$x
1137 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1143 for x in $xm_file; do
1144 if test -f $srcdir/config/$x
1146 else AC_MSG_WARN($srcdir/config/$x does not exist.)
1152 for f in $tm_file; do
1155 if test $count = ax; then
1156 echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
1158 echo "Using the following target machine macro files:"
1159 for f in $tm_file; do
1160 echo " $srcdir/config/$f"
1164 if test x$need_64bit_hwint = xyes; then
1165 AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
1166 [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
1170 for f in $host_xm_file; do
1173 if test $count = a; then
1175 elif test $count = ax; then
1176 echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
1178 echo "Using the following host machine macro files:"
1179 for f in $host_xm_file; do
1180 echo " $srcdir/config/$f"
1183 echo "Using ${out_host_hook_obj} for host machine hooks."
1185 if test "$host_xm_file" != "$build_xm_file"; then
1187 for f in $build_xm_file; do
1190 if test $count = a; then
1192 elif test $count = ax; then
1193 echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
1195 echo "Using the following build machine macro files:"
1196 for f in $build_xm_file; do
1197 echo " $srcdir/config/$f"
1206 # Check if a valid thread package
1207 case ${enable_threads} in
1210 target_thread_file='single'
1214 target_thread_file='single'
1216 aix | dce | gnat | irix | posix | rtems | \
1217 single | solaris | vxworks | win32 )
1218 target_thread_file=${enable_threads}
1221 echo "${enable_threads} is an unknown thread package" 1>&2
1226 if test x${thread_file} = x; then
1227 # No thread file set by target-specific clauses in config.gcc,
1228 # so use file chosen by default logic above
1229 thread_file=${target_thread_file}
1232 # Make gthr-default.h if we have a thread file.
1234 if test $thread_file != single; then
1235 rm -f gthr-default.h
1236 echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
1237 gthread_flags=-DHAVE_GTHR_DEFAULT
1239 AC_SUBST(gthread_flags)
1245 if test x$enable___cxa_atexit = xyes || \
1246 test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
1247 AC_CHECK_FUNC(__cxa_atexit,
1248 [AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
1249 [Define if you want to use __cxa_atexit, rather than atexit, to
1250 register C++ destructors for local statics and global objects.
1251 This is essential for fully standards-compliant handling of
1252 destructors, but requires __cxa_atexit in libc.])],
1253 echo "__cxa_atexit can't be enabled on this target")
1256 # Look for a file containing extra machine modes.
1257 if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
1258 extra_modes_file='$(srcdir)'/config/${extra_modes}
1259 AC_SUBST(extra_modes_file)
1260 AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
1261 [Define to the name of a file containing a list of extra machine modes
1262 for this architecture.])
1265 # auto-host.h is the file containing items generated by autoconf and is
1266 # the first file included by config.h.
1267 # If host=build, it is correct to have bconfig include auto-host.h
1268 # as well. If host!=build, we are in error and need to do more
1269 # work to find out the build config parameters.
1270 if test x$host = x$build
1272 build_auto=auto-host.h
1275 # We create a subdir, then run autoconf in the subdir.
1276 # To prevent recursion we set host and build for the new
1277 # invocation of configure to the build for this invocation
1284 /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
1285 *) realsrcdir=../${srcdir};;
1287 saved_CFLAGS="${CFLAGS}"
1288 CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
1289 ${realsrcdir}/configure \
1290 --enable-languages=${enable_languages-all} \
1291 --target=$target_alias --host=$build_alias --build=$build_alias
1292 CFLAGS="${saved_CFLAGS}"
1294 # We just finished tests for the build machine, so rename
1295 # the file auto-build.h in the gcc directory.
1296 mv auto-host.h ../auto-build.h
1299 build_auto=auto-build.h
1300 FORBUILD=../${build_subdir}
1304 tm_file="${tm_file} defaults.h"
1305 tm_p_file="${tm_p_file} tm-preds.h"
1306 host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
1307 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
1308 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
1309 # put this back in temporarily.
1310 xm_file="ansidecl.h ${xm_file}"
1316 # Get the version trigger filename from the toplevel
1317 if test "${with_gcc_version_trigger+set}" = set; then
1318 gcc_version_trigger=$with_gcc_version_trigger
1320 gcc_version_trigger=${srcdir}/version.c
1323 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
1324 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1326 # Compile in configure arguments.
1327 if test -f configargs.h ; then
1328 # Being re-configured.
1329 gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
1330 gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
1332 gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
1335 # Double all backslashes and backslash all quotes to turn
1336 # gcc_config_arguments into a C string.
1337 sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
1338 $gcc_config_arguments
1340 gcc_config_arguments_str=`cat conftest.out`
1343 cat > configargs.h <<EOF
1344 /* Generated automatically. */
1345 static const char configuration_arguments[] = "$gcc_config_arguments_str";
1346 static const char thread_model[] = "$thread_file";
1348 static const struct {
1349 const char *name, *value;
1350 } configure_default_options[] = $configure_default_options;
1354 # Internationalization
1356 VERSION="$gcc_version"
1360 ZW_GNU_GETTEXT_SISTER_DIR
1362 # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
1363 # -liconv on the link line twice.
1364 case "$LIBINTL" in *$LIBICONV*)
1368 # Windows32 Registry support for specifying GCC installation paths.
1369 AC_ARG_ENABLE(win32-registry,
1370 [ --disable-win32-registry
1371 disable lookup of installation paths in the
1372 Registry on Windows hosts
1373 --enable-win32-registry enable registry lookup (default)
1374 --enable-win32-registry=KEY
1375 use KEY instead of GCC version as the last portion
1376 of the registry key],,)
1378 win32 | pe | cygwin* | mingw32* | uwin*)
1379 AC_MSG_CHECKING(whether windows registry support is requested)
1380 if test "x$enable_win32_registry" != xno; then
1381 AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
1382 [Define to 1 if installation paths should be looked up in Windows32
1383 Registry. Ignored on non windows32 hosts.])
1385 AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
1390 # Check if user specified a different registry key.
1391 case "x${enable_win32_registry}" in
1394 gcc_cv_win32_registry_key="$VERSION"
1397 # no registry lookup.
1398 gcc_cv_win32_registry_key=''
1401 # user-specified key.
1402 gcc_cv_win32_registry_key="$enable_win32_registry"
1406 if test "x$enable_win32_registry" != xno; then
1407 AC_MSG_CHECKING(registry key on windows hosts)
1408 AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
1409 [Define to be the last portion of registry key on windows hosts.])
1410 AC_MSG_RESULT($gcc_cv_win32_registry_key)
1415 # Get an absolute path to the GCC top-level source directory
1416 holddir=`${PWDCMD-pwd}`
1418 topdir=`${PWDCMD-pwd}`
1421 # Conditionalize the makefile for this host machine.
1423 for f in ${host_xmake_file}
1425 if test -f ${srcdir}/config/$f
1427 xmake_file="${xmake_file} \$(srcdir)/config/$f"
1431 # Conditionalize the makefile for this target machine.
1433 for f in ${tmake_file}
1435 if test -f ${srcdir}/config/$f
1437 tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
1440 tmake_file="${tmake_file_}"
1442 symbolic_link='ln -s'
1444 # If the host doesn't support symlinks, modify CC in
1445 # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
1446 # Otherwise, we can use "CC=$(CC)".
1448 if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
1450 cc_set_by_configure="\$(CC)"
1451 quoted_cc_set_by_configure="\$(CC)"
1452 stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1453 quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
1456 if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
1458 symbolic_link="cp -p"
1462 cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
1463 quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
1464 stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
1465 quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
1469 out_object_file=`basename $out_file .c`.o
1473 for f in $tm_file; do
1476 tm_file_list="${tm_file_list} \$(srcdir)/$f"
1477 tm_include_list="${tm_include_list} $f"
1480 tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
1481 tm_include_list="${tm_include_list} config/$f"
1488 for f in $tm_p_file; do
1491 tm_p_file_list="${tm_p_file_list} $f"
1492 tm_p_include_list="${tm_p_include_list} $f"
1495 tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
1496 tm_p_include_list="${tm_p_include_list} config/$f"
1502 for f in $xm_file; do
1505 xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
1506 xm_include_list="${xm_include_list} $f"
1509 xm_file_list="${xm_file_list} $f"
1510 xm_include_list="${xm_include_list} $f"
1513 xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
1514 xm_include_list="${xm_include_list} config/$f"
1520 host_xm_include_list=
1521 for f in $host_xm_file; do
1524 host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
1525 host_xm_include_list="${host_xm_include_list} $f"
1528 host_xm_file_list="${host_xm_file_list} $f"
1529 host_xm_include_list="${host_xm_include_list} $f"
1532 host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
1533 host_xm_include_list="${host_xm_include_list} config/$f"
1539 for f in $build_xm_file; do
1542 build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
1543 build_xm_include_list="${build_xm_include_list} $f"
1545 auto-build.h | auto-host.h )
1546 build_xm_file_list="${build_xm_file_list} $f"
1547 build_xm_include_list="${build_xm_include_list} $f"
1550 build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
1551 build_xm_include_list="${build_xm_include_list} config/$f"
1556 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
1557 # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
1558 CROSS= AC_SUBST(CROSS)
1559 ALL=all.internal AC_SUBST(ALL)
1560 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
1561 if test x$host != x$target
1563 CROSS="-DCROSS_COMPILE"
1565 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1566 case "$host","$target" in
1567 # Darwin crosses can use the host system's libraries and headers,
1568 # because of the fat library support. Of course, it must be the
1569 # same version of Darwin on both sides. Allow the user to
1570 # just say --target=foo-darwin without a version number to mean
1571 # "the version on this system".
1572 *-*-darwin*,*-*-darwin*)
1573 hostos=`echo $host | sed 's/.*-darwin/darwin/'`
1574 targetos=`echo $target | sed 's/.*-darwin/darwin/'`
1575 if test $hostos = $targetos -o $targetos = darwin ; then
1577 SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
1582 i?86-*-*,x86_64-*-* \
1583 | powerpc*-*-*,powerpc64*-*-*)
1584 CROSS="$CROSS -DNATIVE_CROSS" ;;
1586 elif test "x$TARGET_SYSTEM_ROOT" != x; then
1587 # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
1588 SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
1591 # If this is a cross-compiler that does not
1592 # have its own set of headers then define
1595 # If this is using newlib, without having the headers available now,
1596 # then define inhibit_libc in LIBGCC2_CFLAGS.
1597 # This prevents libgcc2 from containing any code which requires libc
1600 if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
1601 test x$with_newlib = xyes ; } &&
1602 { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
1603 inhibit_libc=-Dinhibit_libc
1605 AC_SUBST(inhibit_libc)
1607 # When building gcc with a cross-compiler, we need to adjust things so
1608 # that the generator programs are still built with the native compiler.
1609 # Also, we cannot run fixincludes or fix-header.
1611 # These are the normal (build=host) settings:
1612 BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
1613 BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
1614 CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
1615 BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
1617 STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
1619 # Possibly disable fixproto, on a per-target basis.
1620 case ${use_fixproto} in
1625 STMP_FIXPROTO=stmp-fixproto
1628 AC_SUBST(STMP_FIXPROTO)
1630 # And these apply if build != host, or we are generating coverage data
1631 if test x$build != x$host || test "x$coverage_flags" != x
1634 BUILD_PREFIX_1=build-
1635 BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
1637 if test "x$TARGET_SYSTEM_ROOT" = x; then
1643 # Expand extra_headers to include complete path.
1644 # This substitutes for lots of t-* files.
1646 # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
1647 for file in ${extra_headers} ; do
1648 extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
1651 # Define collect2 in Makefile.
1652 case $host_can_use_collect2 in
1654 *) collect2='collect2$(exeext)' ;;
1656 AC_SUBST([collect2])
1658 # Add a definition of USE_COLLECT2 if system wants one.
1659 case $use_collect2 in
1660 no) use_collect2= ;;
1663 host_xm_defines="${host_xm_defines} USE_COLLECT2"
1664 xm_defines="${xm_defines} USE_COLLECT2"
1665 case $host_can_use_collect2 in
1667 AC_MSG_ERROR([collect2 is required but cannot be built on this system])
1673 # ---------------------------
1674 # Assembler & linker features
1675 # ---------------------------
1677 # Identify the assembler which will work hand-in-glove with the newly
1678 # built GCC, so that we can examine its features. This is the assembler
1679 # which will be driven by the driver program.
1681 # If build != host, and we aren't building gas in-tree, we identify a
1682 # build->target assembler and hope that it will have the same features
1683 # as the host->target assembler we'll be using.
1684 AC_MSG_CHECKING(what assembler to use)
1687 gcc_cv_gas_major_version=
1688 gcc_cv_gas_minor_version=
1689 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
1690 if test -x "$DEFAULT_ASSEMBLER"; then
1691 gcc_cv_as="$DEFAULT_ASSEMBLER"
1692 elif test -x as$host_exeext; then
1693 # Build using assembler in the current directory.
1694 gcc_cv_as=./as$host_exeext
1695 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
1696 && test -f ../gas/Makefile \
1697 && test x$build = x$host; then
1698 # Single tree build which includes gas. We want to prefer it
1699 # over whatever linker top-level may have detected, since
1700 # we'll use what we're building after installation anyway.
1702 _gcc_COMPUTE_GAS_VERSION
1703 rm -f as$host_exeext
1704 $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
1705 in_tree_gas_is_elf=no
1706 if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
1707 || (grep 'obj_format = multi' ../gas/Makefile \
1708 && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
1710 in_tree_gas_is_elf=yes
1712 m4_pattern_allow([AS_FOR_TARGET])dnl
1713 elif test -x "$AS_FOR_TARGET"; then
1714 gcc_cv_as="$AS_FOR_TARGET"
1715 elif test -x "$AS" && test x$host = x$target; then
1719 if test "x$gcc_cv_as" = x; then
1720 # Search the same directories that the installed compiler will
1721 # search. Else we may find the wrong assembler and lose. If we
1722 # do not find a suitable assembler binary, then try the user's
1725 # Also note we have to check MD_EXEC_PREFIX before checking the
1726 # user's path. Unfortunately, there is no good way to get at the
1727 # value of MD_EXEC_PREFIX here. So we do a brute force search
1728 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1729 # to be fixed as part of the make/configure rewrite too.
1731 if test "x$exec_prefix" = xNONE; then
1732 if test "x$prefix" = xNONE; then
1733 test_prefix=/usr/local
1738 test_prefix=$exec_prefix
1741 # If the loop below does not find an assembler, then use whatever
1742 # one we can find in the users's path.
1744 if test "x$program_prefix" != xNONE; then
1745 gcc_cv_as=${program_prefix}as$host_exeext
1747 gcc_cv_as=`echo as | sed "${program_transform_name}"`$host_exeext
1750 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1751 $test_prefix/libexec/gcc/$target_noncanonical \
1752 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1753 /usr/lib/gcc/$target_noncanonical \
1754 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1755 $test_prefix/$target_noncanonical/bin"
1757 if test x$host = x$target; then
1758 test_dirs="$test_dirs \
1763 /bsd43/usr/lib/cmplrs/cc \
1764 /usr/cross64/usr/bin \
1765 /usr/lib/cmplrs/cc \
1766 /sysv/usr/lib/cmplrs/cc \
1767 /svr4/usr/lib/cmplrs/cc \
1771 for dir in $test_dirs; do
1772 if test -x $dir/as$host_exeext; then
1773 gcc_cv_as=$dir/as$host_exeext
1778 case $in_tree_gas in
1780 AC_MSG_RESULT("newly built gas")
1783 AC_MSG_RESULT($gcc_cv_as)
1787 # Identify the linker which will work hand-in-glove with the newly
1788 # built GCC, so that we can examine its features. This is the linker
1789 # which will be driven by the driver program.
1791 # If build != host, and we aren't building gas in-tree, we identify a
1792 # build->target linker and hope that it will have the same features
1793 # as the host->target linker we'll be using.
1794 AC_MSG_CHECKING(what linker to use)
1797 gcc_cv_gld_major_version=
1798 gcc_cv_gld_minor_version=
1799 gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
1800 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
1801 if test -x "$DEFAULT_LINKER"; then
1802 gcc_cv_ld="$DEFAULT_LINKER"
1803 elif test -x collect-ld$host_exeext; then
1804 # Build using linker in the current directory.
1805 gcc_cv_ld=./collect-ld$host_exeext
1806 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
1807 && test -f ../ld/Makefile \
1808 && test x$build = x$host; then
1809 # Single tree build which includes ld. We want to prefer it
1810 # over whatever linker top-level may have detected, since
1811 # we'll use what we're building after installation anyway.
1813 in_tree_ld_is_elf=no
1814 if (grep 'EMUL = .*elf' ../ld/Makefile \
1815 || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
1816 in_tree_ld_is_elf=yes
1818 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
1821 gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
1823 if test x$gcc_cv_gld_version != x; then
1828 gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
1829 gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
1831 rm -f collect-ld$host_exeext
1832 $symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
1834 elif test -x "$LD_FOR_TARGET"; then
1835 gcc_cv_ld="$LD_FOR_TARGET"
1836 elif test -x "$LD" && test x$host = x$target; then
1840 if test "x$gcc_cv_ld" = x; then
1841 # Search the same directories that the installed compiler will
1842 # search. Else we may find the wrong linker and lose. If we
1843 # do not find a suitable linker binary, then try the user's
1846 # Also note we have to check MD_EXEC_PREFIX before checking the
1847 # user's path. Unfortunately, there is no good way to get at the
1848 # value of MD_EXEC_PREFIX here. So we do a brute force search
1849 # through all the known MD_EXEC_PREFIX values. Ugh. This needs
1850 # to be fixed as part of the make/configure rewrite too.
1852 if test "x$exec_prefix" = xNONE; then
1853 if test "x$prefix" = xNONE; then
1854 test_prefix=/usr/local
1859 test_prefix=$exec_prefix
1862 # If the loop below does not find an linker, then use whatever
1863 # one we can find in the users's path.
1865 if test "x$program_prefix" != xNONE; then
1866 gcc_cv_ld=${program_prefix}ld$host_exeext
1868 gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$host_exeext
1871 test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
1872 $test_prefix/libexec/gcc/$target_noncanonical \
1873 /usr/lib/gcc/$target_noncanonical/$gcc_version \
1874 /usr/lib/gcc/$target_noncanonical \
1875 $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
1876 $test_prefix/$target_noncanonical/bin"
1878 if test x$host = x$target; then
1879 test_dirs="$test_dirs \
1884 /bsd43/usr/lib/cmplrs/cc \
1885 /usr/cross64/usr/bin \
1886 /usr/lib/cmplrs/cc \
1887 /sysv/usr/lib/cmplrs/cc \
1888 /svr4/usr/lib/cmplrs/cc \
1892 for dir in $test_dirs; do
1893 if test -x $dir/ld$host_exeext; then
1894 gcc_cv_ld=$dir/ld$host_exeext
1901 AC_MSG_RESULT("newly built ld")
1904 AC_MSG_RESULT($gcc_cv_ld)
1908 # Figure out what nm we will be using.
1909 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
1910 AC_MSG_CHECKING(what nm to use)
1912 if test -x nm$host_exeext; then
1913 gcc_cv_nm=./nm$host_exeext
1914 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1915 && test -f ../binutils/Makefile; then
1916 # Single tree build which includes binutils.
1918 gcc_cv_nm=./nm$host_exeext
1919 rm -f nm$host_exeext
1920 $symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
1921 elif test "x$program_prefix" != xNONE; then
1922 gcc_cv_nm=${program_prefix}nm$host_exeext
1924 gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$host_exeext
1927 yes) AC_MSG_RESULT("newly built nm") ;;
1928 no) AC_MSG_RESULT($gcc_cv_nm) ;;
1931 # Figure out what objdump we will be using.
1932 AC_MSG_CHECKING(what objdump to use)
1934 if test -x objdump$host_exeext; then
1935 gcc_cv_objdump=./objdump$host_exeext
1936 elif test -f $gcc_cv_binutils_srcdir/configure.in \
1937 && test -f ../binutils/Makefile; then
1938 # Single tree build which includes binutils.
1940 gcc_cv_objdump=./objdump$host_exeext
1941 rm -f objdump$host_exeext
1942 $symbolic_link ../binutils/objdump$host_exeext \
1943 objdump$host_exeext 2>/dev/null
1944 elif test "x$program_prefix" != xNONE; then
1945 gcc_cv_objdump=${program_prefix}objdump$host_exeext
1947 gcc_cv_objdump=`echo objdump | \
1948 sed "${program_transform_name}"`$host_exeext
1950 case $in_tree_objdump in
1951 yes) AC_MSG_RESULT("newly built objdump") ;;
1952 no) AC_MSG_RESULT($gcc_cv_objdump) ;;
1955 # Figure out what assembler alignment features are present.
1956 gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
1960 [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
1961 [Define if your assembler supports .balign and .p2align.])])
1963 gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
1966 [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
1967 [Define if your assembler supports specifying the maximum number
1968 of bytes to skip when using the GAS .p2align command.])])
1970 gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
1972 [conftest_label1: .word 0
1974 conftest_label2: .word 0
1976 [if test x$gcc_cv_nm != x; then
1977 $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
1978 $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
1979 if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
1981 else gcc_cv_as_subsection_m1=yes
1983 rm -f conftest.nm1 conftest.nm2
1985 [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
1986 [Define if your assembler supports .subsection and .subsection -1 starts
1987 emitting at the beginning of your section.])])
1989 gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
1992 [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
1994 # .hidden needs to be supported in both the assembler and the linker,
1995 # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
1996 # This is irritatingly difficult to feature test for; we have to check the
1997 # date string after the version number. If we've got an in-tree
1998 # ld, we don't know its patchlevel version, so we set the baseline at 2.13
2000 # The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
2001 gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
2006 AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
2007 [if test $in_tree_ld = yes ; then
2009 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
2010 && test $in_tree_ld_is_elf = yes; then
2011 gcc_cv_ld_hidden=yes
2014 gcc_cv_ld_hidden=yes
2015 ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
2016 if echo "$ld_ver" | grep GNU > /dev/null; then
2018 ld_vers=`echo $ld_ver | sed -n \
2019 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2020 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2021 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
2022 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2023 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
2024 -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
2025 ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
2026 if test 0"$ld_date" -lt 20020404; then
2027 if test -n "$ld_date"; then
2028 # If there was date string, but was earlier than 2002-04-04, fail
2030 elif test -z "$ld_vers"; then
2031 # If there was no date string nor ld version number, something is wrong
2034 ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
2035 ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
2036 ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
2037 test -z "$ld_vers_patch" && ld_vers_patch=0
2038 if test "$ld_vers_major" -lt 2; then
2040 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
2041 gcc_cv_ld_hidden="no"
2042 elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
2050 hppa64*-*-hpux* | ia64*-*-hpux*)
2051 gcc_cv_ld_hidden=yes
2059 libgcc_visibility=no
2060 AC_SUBST(libgcc_visibility)
2061 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
2062 libgcc_visibility=yes
2063 AC_DEFINE(HAVE_GAS_HIDDEN, 1,
2064 [Define if your assembler and linker support .hidden.])
2067 # Check if we have .[us]leb128, and support symbol arithmetic with it.
2068 gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
2076 [# GAS versions before 2.11 do not support uleb128,
2077 # despite appearing to.
2078 # ??? There exists an elf-specific test that will crash
2079 # the assembler. Perhaps it's better to figure out whether
2080 # arbitrary sections are supported and try the test.
2081 as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
2082 if echo "$as_ver" | grep GNU > /dev/null; then
2084 as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
2085 as_major=`echo $as_ver | sed 's/\..*//'`
2086 as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
2088 if test $as_major -eq 2 && test $as_minor -lt 11
2090 else gcc_cv_as_leb128=yes
2093 [AC_DEFINE(HAVE_AS_LEB128, 1,
2094 [Define if your assembler supports .sleb128 and .uleb128.])])
2096 # GAS versions up to and including 2.11.0 may mis-optimize
2098 gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
2106 .section .eh_frame,"aw",@progbits
2108 .4byte .LECIE1-.LSCIE1
2122 .4byte .LEFDE1-.LASFDE1
2124 .4byte .LASFDE1-__FRAME_BEGIN__
2132 [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
2133 cat > conftest.lit <<EOF
2134 0000 10000000 00000000 017a0001 781a0004 .........z..x...
2135 0010 01000000 12000000 18000000 00000000 ................
2136 0020 08000000 04080000 0044 .........D @&t@
2138 cat > conftest.big <<EOF
2139 0000 00000010 00000000 017a0001 781a0004 .........z..x...
2140 0010 00000001 00000012 00000018 00000000 ................
2141 0020 00000008 04000000 0844 .........D @&t@
2143 # If the assembler didn't choke, and we can objdump,
2144 # and we got the correct data, then succeed.
2145 if test x$gcc_cv_objdump != x \
2146 && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
2147 | tail -3 > conftest.got \
2148 && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
2149 || cmp conftest.big conftest.got > /dev/null 2>&1; }
2151 gcc_cv_as_eh_frame=yes
2152 elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
2153 gcc_cv_as_eh_frame=buggy
2155 # Uh oh, what do we do now?
2156 gcc_cv_as_eh_frame=no
2159 if test $gcc_cv_as_eh_frame = buggy; then
2160 AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
2161 [Define if your assembler mis-optimizes .eh_frame data.])
2164 gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
2165 [elf,2,12,0], [--fatal-warnings],
2166 [.section .rodata.str, "aMS", @progbits, 1])
2167 AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
2168 [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
2169 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
2171 # Thread-local storage - the check is heavily parametrized.
2180 .section ".tdata","awT",@progbits
2183 ldq $27,__tls_get_addr($29) !literal!1
2184 lda $16,foo($29) !tlsgd!1
2185 jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
2186 ldq $27,__tls_get_addr($29) !literal!2
2187 lda $16,foo($29) !tlsldm!2
2188 jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
2189 ldq $1,foo($29) !gotdtprel
2190 ldah $2,foo($29) !dtprelhi
2191 lda $3,foo($2) !dtprello
2192 lda $4,foo($29) !dtprel
2193 ldq $1,foo($29) !gottprel
2194 ldah $2,foo($29) !tprelhi
2195 lda $3,foo($2) !tprello
2196 lda $4,foo($29) !tprel'
2199 tls_as_opt=--fatal-warnings
2203 .section ".tdata","awT",@progbits
2207 leal foo@TLSGD(,%ebx,1), %eax
2208 leal foo@TLSLDM(%ebx), %eax
2209 leal foo@DTPOFF(%eax), %edx
2210 movl foo@GOTTPOFF(%ebx), %eax
2211 subl foo@GOTTPOFF(%ebx), %eax
2212 addl foo@GOTNTPOFF(%ebx), %eax
2213 movl foo@INDNTPOFF, %eax
2214 movl $foo@TPOFF, %eax
2215 subl $foo@TPOFF, %eax
2216 leal foo@NTPOFF(%ecx), %eax'
2219 tls_as_opt=--fatal-warnings
2223 .section ".tdata","awT",@progbits
2227 leaq foo@TLSGD(%rip), %rdi
2228 leaq foo@TLSLD(%rip), %rdi
2229 leaq foo@DTPOFF(%rax), %rdx
2230 movq foo@GOTTPOFF(%rip), %rax
2231 movq $foo@TPOFF, %rax'
2234 tls_as_opt=--fatal-warnings
2238 .section ".tdata","awT",@progbits
2241 addl r16 = @ltoff(@dtpmod(foo#)), gp
2242 addl r17 = @ltoff(@dtprel(foo#)), gp
2243 addl r18 = @ltoff(@tprel(foo#)), gp
2244 addl r19 = @dtprel(foo#), gp
2245 adds r21 = @dtprel(foo#), r13
2246 movl r23 = @dtprel(foo#)
2247 addl r20 = @tprel(foo#), gp
2248 adds r22 = @tprel(foo#), r13
2249 movl r24 = @tprel(foo#)'
2252 tls_as_opt=--fatal-warnings
2256 .section ".tdata","awT",@progbits
2264 addi 3,31,ld0@got@tlsgd
2266 addi 3,31,x1@got@tlsld
2269 addis 9,3,x2@dtprel@ha
2270 addi 9,9,x2@dtprel@l
2271 lwz 9,x3@got@tprel(31)
2274 addis 9,2,x2@tprel@ha
2275 addi 9,9,x2@tprel@l'
2278 tls_as_opt="-a32 --fatal-warnings"
2282 .section ".tdata","awT",@progbits
2290 addi 3,2,ld0@got@tlsgd
2296 addi 3,2,x1@got@tlsld
2302 addis 9,3,x2@dtprel@ha
2303 addi 9,9,x2@dtprel@l
2306 ld 9,x3@got@dtprel(2)
2312 tls_as_opt="-a64 --fatal-warnings"
2316 .section ".tdata","awT",@progbits
2325 l %r1,foo@GOTNTPOFF(%r12)
2326 l %r1,0(%r1):tls_load:foo
2327 bas %r14,0(%r1,%r13):tls_gdcall:foo
2328 bas %r14,0(%r1,%r13):tls_ldcall:foo'
2331 tls_as_opt="-m31 --fatal-warnings"
2335 .section ".tdata","awT",@progbits
2343 lg %r1,foo@GOTNTPOFF(%r12)
2344 larl %r1,foo@INDNTPOFF
2345 brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
2346 brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
2349 tls_as_opt="-m64 -Aesame --fatal-warnings"
2351 sh-*-* | sh[34]-*-*)
2353 .section ".tdata","awT",@progbits
2363 tls_as_opt=--fatal-warnings
2367 sparc*-sun-solaris2.*)
2374 if test x$on_solaris = xyes && test x$gas_flag = xno; then
2376 .section ".tdata",#alloc,#write,#tls
2379 sethi %tgd_hi22(foo), %o0
2380 add %o0, %tgd_lo10(foo), %o1
2381 add %l7, %o1, %o0, %tgd_add(foo)
2382 call __tls_get_addr, %tgd_call(foo)
2383 sethi %tldm_hi22(foo), %l1
2384 add %l1, %tldm_lo10(foo), %l2
2385 add %l7, %l2, %o0, %tldm_add(foo)
2386 call __tls_get_addr, %tldm_call(foo)
2387 sethi %tldo_hix22(foo), %l3
2388 xor %l3, %tldo_lox10(foo), %l4
2389 add %o0, %l4, %l5, %tldo_add(foo)
2390 sethi %tie_hi22(foo), %o3
2391 add %o3, %tie_lo10(foo), %o3
2392 ld [%l7 + %o3], %o2, %tie_ld(foo)
2393 add %g7, %o2, %o4, %tie_add(foo)
2394 sethi %tle_hix22(foo), %l1
2395 xor %l1, %tle_lox10(foo), %o5
2396 ld [%g7 + %o5], %o1'
2401 .section ".tdata","awT",@progbits
2404 sethi %tgd_hi22(foo), %o0
2405 add %o0, %tgd_lo10(foo), %o1
2406 add %l7, %o1, %o0, %tgd_add(foo)
2407 call __tls_get_addr, %tgd_call(foo)
2408 sethi %tldm_hi22(foo), %l1
2409 add %l1, %tldm_lo10(foo), %l2
2410 add %l7, %l2, %o0, %tldm_add(foo)
2411 call __tls_get_addr, %tldm_call(foo)
2412 sethi %tldo_hix22(foo), %l3
2413 xor %l3, %tldo_lox10(foo), %l4
2414 add %o0, %l4, %l5, %tldo_add(foo)
2415 sethi %tie_hi22(foo), %o3
2416 add %o3, %tie_lo10(foo), %o3
2417 ld [%l7 + %o3], %o2, %tie_ld(foo)
2418 add %g7, %o2, %o4, %tie_add(foo)
2419 sethi %tle_hix22(foo), %l1
2420 xor %l1, %tle_lox10(foo), %o5
2421 ld [%g7 + %o5], %o1'
2424 tls_as_opt="-32 --fatal-warnings"
2429 if test -z "$tls_first_major"; then
2430 : # If we don't have a check, assume no support.
2432 gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
2433 [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
2434 [AC_DEFINE(HAVE_AS_TLS, 1,
2435 [Define if your assembler supports thread-local storage.])])
2438 # Target-specific assembler checks.
2441 # All TARGET_ABI_OSF targets.
2442 alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
2443 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2444 gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
2447 extbl $3, $2, $3 !lituse_bytoff!1
2448 ldq $2, a($29) !literal!1
2449 ldq $4, b($29) !literal!2
2450 ldq_u $3, 0($2) !lituse_base!1
2451 ldq $27, f($29) !literal!5
2452 jsr $26, ($27), f !lituse_jsr!5
2453 ldah $29, 0($26) !gpdisp!3
2454 lda $0, c($29) !gprel
2455 ldah $1, d($29) !gprelhigh
2456 lda $1, d($1) !gprellow
2457 lda $29, 0($29) !gpdisp!3],,
2458 [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
2459 [Define if your assembler supports explicit relocations.])])
2463 gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
2464 gcc_cv_as_cris_no_mul_bug,[2,15,91],
2465 [-no-mul-bug-abort], [.text],,
2466 [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
2467 [Define if your assembler supports the -no-mul-bug-abort option.])])
2471 gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
2472 [.register %g2, #scratch],,
2473 [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
2474 [Define if your assembler supports .register.])])
2476 gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
2478 [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
2479 [Define if your assembler supports -relax option.])])
2481 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
2482 gcc_cv_as_sparc_ua_pcrel,,
2490 .uaword %r_disp32(foo)],
2491 [if test x$gcc_cv_ld != x \
2492 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
2493 gcc_cv_as_sparc_ua_pcrel=yes
2496 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
2497 [Define if your assembler and linker support unaligned PC relative relocs.])
2499 gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
2500 gcc_cv_as_sparc_ua_pcrel_hidden,,
2505 .uaword %r_disp32(foo)
2506 .byte 0x32, 0x33, 0x34
2511 [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
2512 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
2513 && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
2514 | grep ' 31000000 07323334' > /dev/null 2>&1; then
2515 if $gcc_cv_objdump -R conftest 2> /dev/null \
2516 | grep 'DISP32' > /dev/null 2>&1; then
2519 gcc_cv_as_sparc_ua_pcrel_hidden=yes
2523 [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
2524 [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
2525 ]) # unaligned pcrel relocs
2527 gcc_GAS_CHECK_FEATURE([offsetable %lo()],
2528 gcc_cv_as_sparc_offsetable_lo10,,
2531 or %g1, %lo(ab) + 12, %g1
2532 or %g1, %lo(ab + 12), %g1],
2533 [if test x$gcc_cv_objdump != x \
2534 && %gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
2535 | grep ' 82106000 82106000' > /dev/null 2>&1; then
2536 gcc_cv_as_offsetable_lo10=yes
2538 [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
2539 [Define if your assembler supports offsetable %lo().])])
2543 i[34567]86-*-* | x86_64-*-*)
2546 cygwin* | pe | mingw32*)
2547 # Used for DWARF 2 in PE
2548 gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
2549 gcc_cv_as_ix86_pe_secrel32,
2555 [if test x$gcc_cv_ld != x \
2556 && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
2557 gcc_cv_as_ix86_pe_secrel32=yes
2560 [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
2561 [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
2565 gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
2566 gcc_cv_as_ix86_filds_fists,
2567 [2,9,0],, [filds mem; fists mem],,
2568 [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
2569 [Define if your assembler uses the new HImode fild and fist notation.])])
2571 gcc_GAS_CHECK_FEATURE([cmov syntax],
2572 gcc_cv_as_ix86_cmov_sun_syntax,,,
2573 [cmovl.l %edx, %eax],,
2574 [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
2575 [Define if your assembler supports the Sun syntax for cmov.])])
2577 # This one is used unconditionally by i386.[ch]; it is to be defined
2578 # to 1 if the feature is present, 0 otherwise.
2579 gcc_GAS_CHECK_FEATURE([GOTOFF in data],
2580 gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
2586 AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
2587 [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
2588 [Define true if the assembler supports '.long foo@GOTOFF'.])
2592 gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
2593 gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
2595 addl r15 = @ltoffx(x#), gp
2597 ld8.mov r16 = [[r15]], x#],,
2598 [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
2599 [Define if your assembler supports ltoffx and ldxmov relocations.])])
2605 *-*-aix*) conftest_s=' .csect .text[[PR]]
2607 *-*-darwin*) conftest_s=' .text
2609 *) conftest_s=' .text
2613 gcc_GAS_CHECK_FEATURE([mfcr field support],
2614 gcc_cv_as_powerpc_mfcrf, [2,14,0],,
2616 [AC_DEFINE(HAVE_AS_MFCRF, 1,
2617 [Define if your assembler supports mfcr field.])])
2621 gcc_GAS_CHECK_FEATURE([explicit relocation support],
2622 gcc_cv_as_mips_explicit_relocs, [2,14,0],,
2623 [ lw $4,%gp_rel(foo)($4)],,
2624 [if test x$target_cpu_default = x
2625 then target_cpu_default=MASK_EXPLICIT_RELOCS
2626 else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
2631 # ??? Not all targets support dwarf2 debug_line, even within a version
2632 # of gas. Moreover, we need to emit a valid instruction to trigger any
2633 # info to the output file. So, as supported targets are added to gas 2.11,
2634 # add some instruction here to (also) show we expect this might work.
2635 # ??? Once 2.11 is released, probably need to add first known working
2636 # version to the per-target configury.
2638 i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
2639 | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
2640 | xstormy16*-*-* | cris-*-* | xtensa-*-*)
2643 ia64*-*-* | s390*-*-*)
2650 if test x"$insn" != x; then
2652 .file 1 \"conftest.s\"
2655 gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
2656 gcc_cv_as_dwarf2_debug_line,
2657 [elf,2,11,0],, [$conftest_s],
2658 [# ??? This fails with non-gnu grep. Maybe use objdump?
2659 if grep debug_line conftest.o > /dev/null 2>&1; then
2660 gcc_cv_as_dwarf2_debug_line=yes
2663 # The .debug_line file table must be in the exact order that
2664 # we specified the files, since these indices are also used
2665 # by DW_AT_decl_file. Approximate this test by testing if
2666 # the assembler bitches if the same index is assigned twice.
2667 gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
2668 gcc_cv_as_dwarf2_file_buggy,,,
2672 if test $gcc_cv_as_dwarf2_debug_line = yes \
2673 && test $gcc_cv_as_dwarf2_file_buggy = no; then
2674 AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
2675 [Define if your assembler supports dwarf2 .file/.loc directives,
2676 and preserves file table indices exactly as given.])
2679 gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
2680 gcc_cv_as_gdwarf2_flag,
2681 [elf,2,11,0], [--gdwarf2], [$insn],,
2682 [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
2683 [Define if your assembler supports the --gdwarf2 option.])])
2685 gcc_GAS_CHECK_FEATURE([--gstabs option],
2686 gcc_cv_as_gstabs_flag,
2687 [elf,2,11,0], [--gstabs], [$insn],
2688 [# The native Solaris 9/Intel assembler doesn't understand --gstabs
2689 # and warns about it, but still exits successfully. So check for
2691 if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
2693 else gcc_cv_as_gstabs_flag=yes
2695 [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
2696 [Define if your assembler supports the --gstabs option.])])
2699 AC_MSG_CHECKING(linker read-only and read-write section mixing)
2700 gcc_cv_ld_ro_rw_mix=unknown
2701 if test $in_tree_ld = yes ; then
2702 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \
2703 && test $in_tree_ld_is_elf = yes; then
2704 gcc_cv_ld_ro_rw_mix=read-write
2706 elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
2707 echo '.section myfoosect, "a"' > conftest1.s
2708 echo '.section myfoosect, "aw"' > conftest2.s
2709 echo '.byte 1' >> conftest2.s
2710 echo '.section myfoosect, "a"' > conftest3.s
2711 echo '.byte 0' >> conftest3.s
2712 if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
2713 && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
2714 && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
2715 && $gcc_cv_ld -shared -o conftest1.so conftest1.o \
2716 conftest2.o conftest3.o > /dev/null 2>&1; then
2717 gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
2718 | sed -e '/myfoosect/!d' -e N`
2719 if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
2720 if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
2721 gcc_cv_ld_ro_rw_mix=read-only
2723 gcc_cv_ld_ro_rw_mix=read-write
2728 rm -f conftest.* conftest[123].*
2731 if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
2732 AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
2733 [Define if your linker links a mix of read-only
2734 and read-write sections into a read-write section.])
2736 AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
2738 AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
2739 gcc_cv_ld_eh_frame_hdr=no
2740 if test $in_tree_ld = yes ; then
2741 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
2742 && test $in_tree_ld_is_elf = yes; then
2743 gcc_cv_ld_eh_frame_hdr=yes
2745 elif test x$gcc_cv_ld != x; then
2746 # Check if linker supports --eh-frame-hdr option
2747 if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
2748 gcc_cv_ld_eh_frame_hdr=yes
2751 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
2752 AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
2753 [Define if your linker supports --eh-frame-hdr option.])
2755 AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
2757 AC_MSG_CHECKING(linker position independent executable support)
2759 if test $in_tree_ld = yes ; then
2760 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
2761 && test $in_tree_ld_is_elf = yes; then
2764 elif test x$gcc_cv_ld != x; then
2765 # Check if linker supports -pie option
2766 if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
2770 if test x"$gcc_cv_ld_pie" = xyes; then
2771 AC_DEFINE(HAVE_LD_PIE, 1,
2772 [Define if your linker supports -pie option.])
2774 AC_MSG_RESULT($gcc_cv_ld_pie)
2780 AC_CACHE_CHECK(linker --as-needed support,
2781 gcc_cv_ld_as_needed,
2782 [gcc_cv_ld_as_needed=no
2783 if test $in_tree_ld = yes ; then
2784 if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
2785 && test $in_tree_ld_is_elf = yes; then
2786 gcc_cv_ld_as_needed=yes
2788 elif test x$gcc_cv_ld != x; then
2789 # Check if linker supports --as-needed and --no-as-needed options
2790 if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
2791 gcc_cv_ld_as_needed=yes
2795 if test x"$gcc_cv_ld_as_needed" = xyes; then
2796 AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
2797 [Define if your linker supports --as-needed and --no-as-needed options.])
2800 if test x$with_sysroot = x && test x$host = x$target \
2801 && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
2802 AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
2803 [Define to PREFIX/include if cpp should also search that directory.])
2806 # Find out what GC implementation we want, or may, use.
2808 [ --with-gc={page,zone} choose the garbage collection mechanism to use
2815 AC_MSG_ERROR([$withval is an invalid option to --with-gc])
2820 echo "Using $GGC for garbage collection."
2822 # Use the system's zlib library.
2824 zlibinc="-I\$(srcdir)/../zlib"
2825 AC_ARG_WITH(system-zlib,
2826 [ --with-system-zlib use installed libz],
2833 dnl Very limited version of automake's enable-maintainer-mode
2835 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2836 dnl maintainer-mode is disabled by default
2837 AC_ARG_ENABLE(maintainer-mode,
2838 [ --enable-maintainer-mode
2839 enable make rules and dependencies not useful
2840 (and sometimes confusing) to the casual installer],
2841 maintainer_mode=$enableval,
2844 AC_MSG_RESULT($maintainer_mode)
2846 if test "$maintainer_mode" = "yes"; then
2853 AC_MSG_CHECKING([whether to use libbanshee for points-to alias analysis])
2854 AC_ARG_WITH(libbanshee,
2855 [ --with-libbanshee enable libbanshee],
2856 libbanshee="$with_libbanshee",
2859 if test x"$libbanshee" = xyes; then
2860 BANSHEELIB="../libbanshee/points-to/libandersen.a ../libbanshee/engine/libbansheeengine.a ../libbanshee/libcompat/libbansheecompat.a "
2861 BANSHEEINC="-I\$(srcdir)/../libbanshee/libcompat -I\$(srcdir)/../libbanshee -I\$(srcdir)/../libbanshee/points-to"
2862 ANDER="tree-alias-ander.o"
2863 AC_DEFINE(HAVE_BANSHEE, 1, [Define if BANSHEE is available])
2869 AC_MSG_RESULT($with_libbanshee)
2872 AC_SUBST(BANSHEEINC)
2873 AC_SUBST(BANSHEELIB)
2879 # Make empty files to contain the specs and options for each language.
2880 # Then add #include lines to for a compiler that has specs and/or options.
2885 for subdir in . $subdirs
2887 if test -f $srcdir/$subdir/lang.opt; then
2888 lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
2890 if test -f $srcdir/$subdir/lang-specs.h; then
2891 lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
2893 if test -f $srcdir/$subdir/$subdir-tree.def; then
2894 lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
2898 # These (without "all_") are set in each config-lang.in.
2899 # `language' must be a single word so is spelled singularly.
2904 all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders libada-mk'
2905 # List of language makefile fragments.
2907 # List of language subdirectory makefiles. Deprecated.
2909 # Files for gengtype
2910 all_gtfiles="$target_gtfiles"
2911 # Files for gengtype with language
2912 all_gtfiles_files_langs=
2913 all_gtfiles_files_files=
2915 # Add the language fragments.
2916 # Languages are added via two mechanisms. Some information must be
2917 # recorded in makefile variables, these are defined in config-lang.in.
2918 # We accumulate them and plug them into the main Makefile.
2919 # The other mechanism is a set of hooks for each of the main targets
2920 # like `clean', `install', etc.
2922 language_hooks="Make-hooks"
2932 . ${srcdir}/$s/config-lang.in
2933 if test "x$language" = x
2935 echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
2938 all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
2939 if test -f ${srcdir}/$s/Makefile.in
2940 then all_lang_makefiles="$s/Makefile"
2942 all_languages="$all_languages $language"
2943 if test "x$boot_language" = xyes
2945 all_boot_languages="$all_boot_languages $language"
2947 all_compilers="$all_compilers $compilers"
2948 all_stagestuff="$all_stagestuff $stagestuff"
2949 all_outputs="$all_outputs $outputs"
2950 all_gtfiles="$all_gtfiles $gtfiles"
2953 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2954 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2958 # Pick up gtfiles for c
2961 . ${srcdir}/c-config-lang.in
2962 all_gtfiles="$all_gtfiles $gtfiles"
2965 all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
2966 all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
2970 for language in $all_languages
2972 check_languages="$check_languages check-$language"
2975 # We link each language in with a set of hooks, reached indirectly via
2980 target_list="all.build all.cross start.encap rest.encap tags \
2981 install-normal install-common install-man \
2982 uninstall info man srcextra srcman srcinfo \
2983 mostlyclean clean distclean maintainer-clean \
2984 stage1 stage2 stage3 stage4 stageprofile stagefeedback"
2985 for t in $target_list
2988 for lang in $all_languages
2992 echo "lang.$t: $x" >> Make-hooks
3001 echo "dir ." > .gdbinit
3002 echo "dir ${srcdir}" >> .gdbinit
3003 if test x$gdb_needs_out_file_path = xyes
3005 echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
3007 if test "x$subdirs" != x; then
3010 echo "dir ${srcdir}/$s" >> .gdbinit
3013 echo "source ${srcdir}/gdbinit.in" >> .gdbinit
3015 # If $(exec_prefix) exists and is not the same as $(prefix), then compute an
3016 # absolute path for gcc_tooldir based on inserting the number of up-directory
3017 # movements required to get from $(exec_prefix) to $(prefix) into the basic
3018 # $(libsubdir)/@(unlibsubdir) based path.
3019 # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
3020 # make and thus we'd get different behavior depending on where we built the
3022 if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
3023 gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
3025 changequote(<<, >>)dnl
3026 # An explanation of the sed strings:
3027 # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
3028 # -e 's|/$||' match a trailing forward slash and eliminates it
3029 # -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
3030 # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
3032 # (*) Note this pattern overwrites the first character of the string
3033 # with a forward slash if one is not already present. This is not a
3034 # problem because the exact names of the sub-directories concerned is
3035 # unimportant, just the number of them matters.
3037 # The practical upshot of these patterns is like this:
3039 # prefix exec_prefix result
3040 # ------ ----------- ------
3042 # /foo/ /foo/bar ../
3043 # /foo /foo/bar/ ../
3044 # /foo/ /foo/bar/ ../
3045 # /foo /foo/bar/ugg ../../
3048 gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
3049 changequote([, ])dnl
3051 AC_SUBST(gcc_tooldir)
3054 # Find a directory in which to install a shared libgcc.
3056 AC_ARG_ENABLE(version-specific-runtime-libs,
3057 [ --enable-version-specific-runtime-libs
3058 specify that runtime libraries should be
3059 installed in a compiler-specific directory])
3061 AC_ARG_WITH(slibdir,
3062 [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
3063 slibdir="$with_slibdir",
3064 if test "${enable_version_specific_runtime_libs+set}" = set; then
3065 slibdir='$(libsubdir)'
3066 elif test "$host" != "$target"; then
3067 slibdir='$(build_tooldir)/lib'
3073 objdir=`${PWDCMD-pwd}`
3076 # Substitute configuration variables
3079 AC_SUBST(all_boot_languages)
3080 AC_SUBST(all_compilers)
3081 AC_SUBST(all_gtfiles)
3082 AC_SUBST(all_gtfiles_files_langs)
3083 AC_SUBST(all_gtfiles_files_files)
3084 AC_SUBST(all_lang_makefrags)
3085 AC_SUBST(all_lang_makefiles)
3086 AC_SUBST(all_languages)
3087 AC_SUBST(all_stagestuff)
3088 AC_SUBST(build_exeext)
3089 AC_SUBST(build_install_headers_dir)
3090 AC_SUBST(build_xm_file_list)
3091 AC_SUBST(build_xm_include_list)
3092 AC_SUBST(build_xm_defines)
3093 AC_SUBST(check_languages)
3094 AC_SUBST(cc_set_by_configure)
3095 AC_SUBST(quoted_cc_set_by_configure)
3096 AC_SUBST(cpp_install_dir)
3097 AC_SUBST(xmake_file)
3098 AC_SUBST(tmake_file)
3099 AC_SUBST(extra_gcc_objs)
3100 AC_SUBST(extra_headers_list)
3101 AC_SUBST(extra_objs)
3102 AC_SUBST(extra_parts)
3103 AC_SUBST(extra_passes)
3104 AC_SUBST(extra_programs)
3105 AC_SUBST(float_h_file)
3106 AC_SUBST(gcc_config_arguments)
3107 AC_SUBST(gcc_gxx_include_dir)
3108 AC_SUBST(libstdcxx_incdir)
3109 AC_SUBST(gcc_version)
3110 AC_SUBST(gcc_version_full)
3111 AC_SUBST(gcc_version_trigger)
3112 AC_SUBST(host_exeext)
3113 AC_SUBST(host_xm_file_list)
3114 AC_SUBST(host_xm_include_list)
3115 AC_SUBST(host_xm_defines)
3116 AC_SUBST(out_host_hook_obj)
3118 AC_SUBST(lang_opt_files)
3119 AC_SUBST(lang_specs_files)
3120 AC_SUBST(lang_tree_files)
3121 AC_SUBST(local_prefix)
3123 AC_SUBST(objc_boehm_gc)
3125 AC_SUBST(out_object_file)
3126 AC_SUBST(stage_prefix_set_by_configure)
3127 AC_SUBST(quoted_stage_prefix_set_by_configure)
3128 AC_SUBST(symbolic_link)
3129 AC_SUBST(thread_file)
3130 AC_SUBST(tm_file_list)
3131 AC_SUBST(tm_include_list)
3132 AC_SUBST(tm_defines)
3133 AC_SUBST(tm_p_file_list)
3134 AC_SUBST(tm_p_include_list)
3135 AC_SUBST(xm_file_list)
3136 AC_SUBST(xm_include_list)
3137 AC_SUBST(xm_defines)
3138 AC_SUBST(target_noncanonical)
3139 AC_SUBST(c_target_objs)
3140 AC_SUBST(cxx_target_objs)
3141 AC_SUBST(target_cpu_default)
3143 AC_SUBST_FILE(language_hooks)
3145 # If it doesn't already exist, create document directory
3146 echo "checking for the document directory." 1>&2
3147 if test -d doc ; then
3154 if test x${build} = x${host} ; then
3155 if test x${host} = x${target} ; then
3156 echo "Links are now set up to build a native compiler for ${target}." 1>&2
3158 echo "Links are now set up to build a cross-compiler" 1>&2
3159 echo " from ${host} to ${target}." 1>&2
3162 if test x${host} = x${target} ; then
3163 echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
3164 echo " for ${target}." 1>&2
3166 echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
3167 echo " from ${host} to ${target}." 1>&2
3171 AC_ARG_VAR(GMPLIBS,[How to link GMP])
3172 AC_ARG_VAR(GMPINC,[How to find GMP include files])
3174 # Configure the subdirectories
3175 # AC_CONFIG_SUBDIRS($subdirs)
3177 # Create the Makefile
3178 # and configure language subdirectories
3179 AC_CONFIG_FILES($all_outputs)
3181 AC_CONFIG_COMMANDS([default],
3183 case ${CONFIG_HEADERS} in
3184 *auto-host.h:config.in*)
3187 # Make sure all the subdirs exist.
3190 test -d $d || mkdir $d
3192 # If the host supports symlinks, point stage[1234] at ../stage[1234] so
3193 # bootstrapping and the installation procedure can still use
3194 # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
3195 # FLAGS_TO_PASS has been modified to solve the problem there.
3196 # This is virtually a duplicate of what happens in configure.lang; we do
3197 # an extra check to make sure this only happens if ln -s can be used.
3198 if test "$symbolic_link" = "ln -s"; then
3199 for d in ${subdirs} fixinc ; do
3200 STARTDIR=`${PWDCMD-pwd}`
3202 for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
3205 $symbolic_link ../$t $t 2>/dev/null
3212 symbolic_link='$symbolic_link'