| blob | 95c924438f188080ade27e0d416d94964fdf5f8b |
1 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
2 # 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
3 # Free Software Foundation, Inc.
4 #
5 # This file is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 3 of the License, or
8 # (at your option) any later version.
9 #
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program; see the file COPYING3. If not see
17 # <http://www.gnu.org/licenses/>.
19 ##############################################################################
20 ### WARNING: this file contains embedded tabs. Do not run untabify on this file.
22 m4_include(config/acx.m4)
23 m4_include(config/override.m4)
24 m4_include(config/proginstall.m4)
25 m4_include(config/elf.m4)
26 m4_include([libtool.m4])
27 m4_include([ltoptions.m4])
28 m4_include([ltsugar.m4])
29 m4_include([ltversion.m4])
30 m4_include([lt~obsolete.m4])
31 m4_include([config/isl.m4])
32 m4_include([config/cloog.m4])
34 AC_INIT(move-if-change)
35 AC_PREREQ(2.64)
36 AC_DISABLE_OPTION_CHECKING
38 progname=$0
39 # if PWD already has a value, it is probably wrong.
40 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
42 # Export original configure arguments for use by sub-configures.
43 # Quote arguments with shell meta charatcers.
44 TOPLEVEL_CONFIGURE_ARGUMENTS=
45 set -- "$progname" "$@"
46 for ac_arg
47 do
48 case "$ac_arg" in
49 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
50 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
51 # if the argument is of the form -foo=baz, quote the baz part only
52 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
53 *) ;;
54 esac
55 # Add the quoted argument to the list.
56 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
57 done
58 if test "$silent" = yes; then
59 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
60 fi
61 # Remove the initial space we just introduced and, as these will be
62 # expanded by make, quote '$'.
63 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
64 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
66 # Find the build, host, and target systems.
67 ACX_NONCANONICAL_BUILD
68 ACX_NONCANONICAL_HOST
69 ACX_NONCANONICAL_TARGET
71 dnl Autoconf 2.5x and later will set a default program prefix if
72 dnl --target was used, even if it was the same as --host. Disable
73 dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
74 dnl to take effect.
75 test "$host_noncanonical" = "$target_noncanonical" &&
76 test "$program_prefix$program_suffix$program_transform_name" = \
77 NONENONEs,x,x, &&
78 program_transform_name=s,y,y,
80 AC_CANONICAL_SYSTEM
81 AC_ARG_PROGRAM
83 m4_pattern_allow([^AS_FOR_TARGET$])dnl
84 m4_pattern_allow([^AS_FOR_BUILD$])dnl
86 # Get 'install' or 'install-sh' and its variants.
87 AC_PROG_INSTALL
88 ACX_PROG_LN
89 AC_PROG_LN_S
90 AC_PROG_SED
91 AC_PROG_AWK
93 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
95 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
96 # a relative path.
97 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
98 INSTALL="${srcpwd}/install-sh -c"
99 fi
101 # Set srcdir to "." if that's what it is.
102 # This is important for multilib support.
103 pwd=`${PWDCMD-pwd}`
104 if test "${pwd}" = "${srcpwd}" ; then
105 srcdir=.
106 fi
108 topsrcdir=$srcpwd
110 extra_host_args=
112 ### To add a new directory to the tree, first choose whether it is a target
113 ### or a host dependent tool. Then put it into the appropriate list
114 ### (library or tools, host or target), doing a dependency sort.
116 # Subdirs will be configured in the order listed in build_configdirs,
117 # configdirs, or target_configdirs; see the serialization section below.
119 # Dependency sorting is only needed when *configuration* must be done in
120 # a particular order. In all cases a dependency should be specified in
121 # the Makefile, whether or not it's implicitly specified here.
123 # Double entries in build_configdirs, configdirs, or target_configdirs may
124 # cause circular dependencies and break everything horribly.
126 # these library is used by various programs built for the build
127 # environment
128 #
129 build_libs="build-libiberty"
131 # these tools are built for the build environment
132 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
134 # these libraries are used by various programs built for the host environment
135 #
136 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl cloog libelf libiconv"
138 # these tools are built for the host environment
139 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
140 # know that we are building the simulator.
141 # binutils, gas and ld appear in that order because it makes sense to run
142 # "make check" in that particular order.
143 # If --enable-gold is used, "gold" may replace "ld".
144 host_tools="texinfo flex bison binutils gas ld fixincludes accel-gcc gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools"
146 # libgcj represents the runtime libraries only used by gcj.
147 libgcj="target-libffi \
148 target-zlib \
149 target-libjava"
151 # these libraries are built for the target environment, and are built after
152 # the host libraries and the host tools (which may be a cross compiler)
153 # Note that libiberty is not a target library.
154 target_libraries="target-libgcc \
155 target-libbacktrace \
156 target-libgloss \
157 target-newlib \
158 target-libgomp \
159 target-libcilkrts \
160 target-libatomic \
161 target-libitm \
162 target-libstdc++-v3 \
163 target-libsanitizer \
164 target-libvtv \
165 target-libssp \
166 target-libquadmath \
167 target-libgfortran \
168 target-boehm-gc \
169 ${libgcj} \
170 target-libobjc \
171 target-libada \
172 target-libgo"
174 # these tools are built using the target libraries, and are intended to
175 # run only in the target environment
176 #
177 # note: any program that *uses* libraries that are in the "target_libraries"
178 # list belongs in this list.
179 #
180 target_tools="target-rda"
182 ################################################################################
184 ## All tools belong in one of the four categories, and are assigned above
185 ## We assign ${configdirs} this way to remove all embedded newlines. This
186 ## is important because configure will choke if they ever get through.
187 ## ${configdirs} is directories we build using the host tools.
188 ## ${target_configdirs} is directories we build using the target tools.
189 configdirs=`echo ${host_libs} ${host_tools}`
190 target_configdirs=`echo ${target_libraries} ${target_tools}`
191 build_configdirs=`echo ${build_libs} ${build_tools}`
193 m4_divert_text([PARSE_ARGS],
194 [case $srcdir in
195 *" "*)
196 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
197 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
198 m4_popdef([AS_MESSAGE_LOG_FD])dnl
199 ;;
200 esac
201 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
202 ])
204 ################################################################################
206 srcname="gnu development package"
208 # This gets set non-empty for some net releases of packages.
209 appdirs=""
211 # Define is_cross_compiler to save on calls to 'test'.
212 is_cross_compiler=
213 if test x"${host}" = x"${target}" ; then
214 is_cross_compiler=no
215 else
216 is_cross_compiler=yes
217 fi
219 # Find the build and target subdir names.
220 GCC_TOPLEV_SUBDIRS
221 # Be sure to cover against remnants of an in-tree build.
222 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
223 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
224 Use a pristine source tree when building in a separate tree])
225 fi
227 # Skipdirs are removed silently.
228 skipdirs=
229 # Noconfigdirs are removed loudly.
230 noconfigdirs=""
232 use_gnu_ld=
233 # Make sure we don't let GNU ld be added if we didn't want it.
234 if test x$with_gnu_ld = xno ; then
235 use_gnu_ld=no
236 noconfigdirs="$noconfigdirs ld gold"
237 fi
239 use_gnu_as=
240 # Make sure we don't let GNU as be added if we didn't want it.
241 if test x$with_gnu_as = xno ; then
242 use_gnu_as=no
243 noconfigdirs="$noconfigdirs gas"
244 fi
246 use_included_zlib=
247 # Make sure we don't let ZLIB be added if we didn't want it.
248 if test x$with_system_zlib = xyes ; then
249 use_included_zlib=no
250 noconfigdirs="$noconfigdirs zlib"
251 fi
253 # some tools are so dependent upon X11 that if we're not building with X,
254 # it's not even worth trying to configure, much less build, that tool.
256 case ${with_x} in
257 yes | "") ;; # the default value for this tree is that X11 is available
258 no)
259 skipdirs="${skipdirs} tk itcl libgui"
260 # We won't be able to build gdbtk without X.
261 enable_gdbtk=no
262 ;;
263 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
264 esac
266 # Some are only suitable for cross toolchains.
267 # Remove these if host=target.
268 cross_only="target-libgloss target-newlib target-opcodes"
270 case $is_cross_compiler in
271 no) skipdirs="${skipdirs} ${cross_only}" ;;
272 esac
274 # If both --with-headers and --with-libs are specified, default to
275 # --without-newlib.
276 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
277 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
278 if test x"${with_newlib}" = x ; then
279 with_newlib=no
280 fi
281 fi
283 # Recognize --with-newlib/--without-newlib.
284 case ${with_newlib} in
285 no) skipdirs="${skipdirs} target-newlib" ;;
286 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
287 esac
289 # Handle --enable-accelerator. This is in top-level because both libgomp and
290 # GCC proper need this information.
291 # --disable-accelerator
292 # Default. Do not build accelerator pieces, only support host execution.
293 # --enable-accelerator=auto-device-triplet
294 # If possible, build accelerator pieces for 'device-triplet'.
295 # --enable-accelerator=device-triplet
296 # Build accelerator pieces for 'device-triplet'.
297 AC_ARG_ENABLE(accelerator,
298 [AS_HELP_STRING([[--enable-accelerator[=ARG]]],
299 [build accelerator @<:@ARG={no,auto-device-triplet,device-triplet}@:>@])],
300 ENABLE_ACCELERATOR=$enableval,
301 ENABLE_ACCELERATOR=no)
302 accel_target_noncanonical=NONE
303 case "${ENABLE_ACCELERATOR}" in
304 yes)
305 AC_MSG_ERROR([--enable-accelerators must name accelerator])
306 skipdirs="${skipdirs} accel-gcc"
307 ;;
308 no)
309 skipdirs="${skipdirs} accel-gcc"
310 ;;
311 auto-nvptx*|nvptx*)
312 accel_target_noncanonical=`echo "$ENABLE_ACCELERATOR" | sed -e s/auto-//g`
313 ;;
314 *)
315 AC_MSG_ERROR([unrecognized accelerator])
316 skipdirs="${skipdirs} accel-gcc"
317 ;;
318 esac
320 ACX_CANONICAL_ACCEL_TARGET
322 # Handle --enable-gold, --enable-ld.
323 # --disable-gold [--enable-ld]
324 # Build only ld. Default option.
325 # --enable-gold [--enable-ld]
326 # Build both gold and ld. Install gold as "ld.gold", install ld
327 # as "ld.bfd" and "ld".
328 # --enable-gold=default [--enable-ld]
329 # Build both gold and ld. Install gold as "ld.gold" and "ld",
330 # install ld as "ld.bfd".
331 # --enable-gold[=default] --disable-ld
332 # Build only gold, which is then installed as both "ld.gold" and "ld".
333 # --enable-gold --enable-ld=default
334 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
335 # and ld.bfd).
336 # In other words, ld is default
337 # --enable-gold=default --enable-ld=default
338 # Error.
340 default_ld=
341 AC_ARG_ENABLE(gold,
342 [AS_HELP_STRING([[--enable-gold[=ARG]]],
343 [build gold @<:@ARG={default,yes,no}@:>@])],
344 ENABLE_GOLD=$enableval,
345 ENABLE_GOLD=no)
346 case "${ENABLE_GOLD}" in
347 yes|default)
348 # Check for ELF target.
349 is_elf=no
350 case "${target}" in
351 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
352 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
353 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
354 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
355 case "${target}" in
356 *-*-linux*aout* | *-*-linux*oldld*)
357 ;;
358 *)
359 is_elf=yes
360 ;;
361 esac
362 esac
364 if test "$is_elf" = "yes"; then
365 # Check for target supported by gold.
366 case "${target}" in
367 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* | tilegx*-*-*)
368 configdirs="$configdirs gold"
369 if test x${ENABLE_GOLD} = xdefault; then
370 default_ld=gold
371 fi
372 ENABLE_GOLD=yes
373 ;;
374 esac
375 fi
376 ;;
377 no)
378 ;;
379 *)
380 AC_MSG_ERROR([invalid --enable-gold argument])
381 ;;
382 esac
384 AC_ARG_ENABLE(ld,
385 [AS_HELP_STRING([[--enable-ld[=ARG]]],
386 [build ld @<:@ARG={default,yes,no}@:>@])],
387 ENABLE_LD=$enableval,
388 ENABLE_LD=yes)
390 case "${ENABLE_LD}" in
391 default)
392 if test x${default_ld} != x; then
393 AC_MSG_ERROR([either gold or ld can be the default ld])
394 fi
395 ;;
396 yes)
397 ;;
398 no)
399 if test x${ENABLE_GOLD} != xyes; then
400 AC_MSG_WARN([neither ld nor gold are enabled])
401 fi
402 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
403 ;;
404 *)
405 AC_MSG_ERROR([invalid --enable-ld argument])
406 ;;
407 esac
409 # Configure extra directories which are host specific
411 case "${host}" in
412 *-cygwin*)
413 configdirs="$configdirs libtermcap" ;;
414 esac
416 # A target can indicate whether a language isn't supported for some reason.
417 # Only spaces may be used in this macro; not newlines or tabs.
418 unsupported_languages=
420 # Remove more programs from consideration, based on the host or
421 # target this usually means that a port of the program doesn't
422 # exist yet.
424 case "${host}" in
425 i[[3456789]]86-*-msdosdjgpp*)
426 noconfigdirs="$noconfigdirs tcl tk itcl"
427 ;;
428 esac
431 AC_ARG_ENABLE(libquadmath,
432 AS_HELP_STRING([--disable-libquadmath],
433 [do not build libquadmath directory]),
434 ENABLE_LIBQUADMATH=$enableval,
435 ENABLE_LIBQUADMATH=yes)
436 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
437 noconfigdirs="$noconfigdirs target-libquadmath"
438 fi
441 AC_ARG_ENABLE(libquadmath-support,
442 AS_HELP_STRING([--disable-libquadmath-support],
443 [disable libquadmath support for Fortran]),
444 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
445 ENABLE_LIBQUADMATH_SUPPORT=yes)
446 enable_libquadmath_support=
447 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
448 enable_libquadmath_support=no
449 fi
452 AC_ARG_ENABLE(libada,
453 [AS_HELP_STRING([--enable-libada], [build libada directory])],
454 ENABLE_LIBADA=$enableval,
455 ENABLE_LIBADA=yes)
456 if test "${ENABLE_LIBADA}" != "yes" ; then
457 noconfigdirs="$noconfigdirs gnattools"
458 fi
460 AC_ARG_ENABLE(libssp,
461 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
462 ENABLE_LIBSSP=$enableval,
463 ENABLE_LIBSSP=yes)
465 AC_ARG_ENABLE(libstdcxx,
466 AS_HELP_STRING([--disable-libstdcxx],
467 [do not build libstdc++-v3 directory]),
468 ENABLE_LIBSTDCXX=$enableval,
469 ENABLE_LIBSTDCXX=default)
470 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
471 noconfigdirs="$noconfigdirs libstdc++-v3"
472 fi]
474 # Save it here so that, even in case of --enable-libgcj, if the Java
475 # front-end isn't enabled, we still get libgcj disabled.
476 libgcj_saved=$libgcj
477 case $enable_libgcj in
478 yes)
479 # If we reset it here, it won't get added to noconfigdirs in the
480 # target-specific build rules, so it will be forcibly enabled
481 # (unless the Java language itself isn't enabled).
482 libgcj=
483 ;;
484 no)
485 # Make sure we get it printed in the list of not supported target libs.
486 # Don't disable libffi, though, other languages use it.
487 noconfigdirs="$noconfigdirs `echo ${libgcj} | sed -e 's/target-libffi//'`"
488 # Clear libgcj_saved so that even if java is enabled libffi won't be
489 # built.
490 libgcj_saved=
491 ;;
492 esac
494 AC_ARG_ENABLE(static-libjava,
495 [AS_HELP_STRING([[--enable-static-libjava[=ARG]]],
496 [build static libjava @<:@default=no@:>@])],
497 ENABLE_STATIC_LIBJAVA=$enableval,
498 ENABLE_STATIC_LIBJAVA=no)
499 enable_static_libjava=
500 if test "${ENABLE_STATIC_LIBJAVA}" = "yes" ; then
501 enable_static_libjava=yes
502 fi
504 if test x$enable_static_libjava != xyes ; then
505 EXTRA_CONFIGARGS_LIBJAVA=--disable-static
506 fi
507 AC_SUBST(EXTRA_CONFIGARGS_LIBJAVA)
509 # Disable libgomp on non POSIX hosted systems.
510 if test x$enable_libgomp = x ; then
511 # Enable libgomp by default on hosted POSIX systems.
512 case "${target}" in
513 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
514 ;;
515 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
516 ;;
517 *-*-solaris2* | *-*-hpux11*)
518 ;;
519 *-*-darwin* | *-*-aix*)
520 ;;
521 *)
522 noconfigdirs="$noconfigdirs target-libgomp"
523 ;;
524 esac
525 fi
527 # Disable libatomic on unsupported systems.
528 if test -d ${srcdir}/libatomic; then
529 if test x$enable_libatomic = x; then
530 AC_MSG_CHECKING([for libatomic support])
531 if (srcdir=${srcdir}/libatomic; \
532 . ${srcdir}/configure.tgt; \
533 test -n "$UNSUPPORTED")
534 then
535 AC_MSG_RESULT([no])
536 noconfigdirs="$noconfigdirs target-libatomic"
537 else
538 AC_MSG_RESULT([yes])
539 fi
540 fi
541 fi
543 # Disable libcilkrts on unsupported systems.
544 if test -d ${srcdir}/libcilkrts; then
545 if test x$enable_libcilkrts = x; then
546 AC_MSG_CHECKING([for libcilkrts support])
547 if (srcdir=${srcdir}/libcilkrts; \
548 . ${srcdir}/configure.tgt; \
549 test -n "$UNSUPPORTED")
550 then
551 AC_MSG_RESULT([no])
552 noconfigdirs="$noconfigdirs target-libcilkrts"
553 else
554 AC_MSG_RESULT([yes])
555 fi
556 fi
557 fi
559 # Disable libitm on unsupported systems.
560 if test -d ${srcdir}/libitm; then
561 if test x$enable_libitm = x; then
562 AC_MSG_CHECKING([for libitm support])
563 if (srcdir=${srcdir}/libitm; \
564 . ${srcdir}/configure.tgt; \
565 test -n "$UNSUPPORTED")
566 then
567 AC_MSG_RESULT([no])
568 noconfigdirs="$noconfigdirs target-libitm"
569 else
570 AC_MSG_RESULT([yes])
571 fi
572 fi
573 fi
575 # Disable libsanitizer on unsupported systems.
576 if test -d ${srcdir}/libsanitizer; then
577 if test x$enable_libsanitizer = x; then
578 AC_MSG_CHECKING([for libsanitizer support])
579 if (srcdir=${srcdir}/libsanitizer; \
580 . ${srcdir}/configure.tgt; \
581 test -n "$UNSUPPORTED")
582 then
583 AC_MSG_RESULT([no])
584 noconfigdirs="$noconfigdirs target-libsanitizer"
585 else
586 AC_MSG_RESULT([yes])
587 fi
588 fi
589 fi
591 # Disable libvtv on unsupported systems.
592 if test -d ${srcdir}/libvtv; then
593 if test x$enable_libvtv = x; then
594 AC_MSG_CHECKING([for libvtv support])
595 if (srcdir=${srcdir}/libvtv; \
596 . ${srcdir}/configure.tgt; \
597 test "$VTV_SUPPORTED" != "yes")
598 then
599 AC_MSG_RESULT([no])
600 noconfigdirs="$noconfigdirs target-libvtv"
601 else
602 AC_MSG_RESULT([yes])
603 fi
604 fi
605 fi
607 # Disable libquadmath for some systems.
608 case "${target}" in
609 avr-*-*)
610 noconfigdirs="$noconfigdirs target-libquadmath"
611 ;;
612 # libquadmath is unused on AIX and libquadmath build process use of
613 # LD_LIBRARY_PATH can break AIX bootstrap.
614 powerpc-*-aix* | rs6000-*-aix*)
615 noconfigdirs="$noconfigdirs target-libquadmath"
616 ;;
617 esac
619 # Disable libssp for some systems.
620 case "${target}" in
621 avr-*-*)
622 # No hosted I/O support.
623 noconfigdirs="$noconfigdirs target-libssp"
624 ;;
625 powerpc-*-aix* | rs6000-*-aix*)
626 noconfigdirs="$noconfigdirs target-libssp"
627 ;;
628 rl78-*-*)
629 # libssp uses a misaligned load to trigger a fault, but the RL78
630 # doesn't fault for those - instead, it gives a build-time error
631 # for explicit misaligned loads.
632 noconfigdirs="$noconfigdirs target-libssp"
633 ;;
634 esac
636 # Disable libstdc++-v3 for some systems.
637 # Allow user to override this if they pass --enable-libstdc++-v3
638 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
639 case "${target}" in
640 *-*-vxworks*)
641 # VxWorks uses the Dinkumware C++ library.
642 noconfigdirs="$noconfigdirs target-libstdc++-v3"
643 ;;
644 arm*-wince-pe*)
645 # the C++ libraries don't build on top of CE's C libraries
646 noconfigdirs="$noconfigdirs target-libstdc++-v3"
647 ;;
648 avr-*-*)
649 noconfigdirs="$noconfigdirs target-libstdc++-v3"
650 ;;
651 esac
652 fi
654 # Disable Fortran for some systems.
655 case "${target}" in
656 mmix-*-*)
657 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
658 unsupported_languages="$unsupported_languages fortran"
659 ;;
660 esac
662 # Disable Java if libffi is not supported.
663 case "${target}" in
664 aarch64-*-*)
665 ;;
666 alpha*-*-*)
667 ;;
668 arm*-*-*)
669 ;;
670 cris-*-*)
671 ;;
672 frv-*-*)
673 ;;
674 hppa*-*-linux*)
675 ;;
676 hppa*-*-hpux*)
677 ;;
678 i?86-*-*)
679 ;;
680 ia64*-*-*)
681 ;;
682 m32r*-*-*)
683 ;;
684 m68k-*-*)
685 ;;
686 mips*-*-rtems*)
687 ;;
688 mips*-*-linux*)
689 ;;
690 powerpc*-*-linux*)
691 ;;
692 powerpc-*-darwin*)
693 ;;
694 powerpc-*-aix* | rs6000-*-aix*)
695 ;;
696 powerpc-*-freebsd*)
697 ;;
698 powerpc64-*-freebsd*)
699 ;;
700 powerpc*-*-rtems*)
701 ;;
702 s390-*-* | s390x-*-*)
703 ;;
704 sh-*-* | sh[[34]]*-*-*)
705 ;;
706 sh64-*-* | sh5*-*-*)
707 ;;
708 sparc*-*-*)
709 ;;
710 x86_64-*-*)
711 ;;
712 *-*-*)
713 unsupported_languages="$unsupported_languages java"
714 ;;
715 esac
717 # Disable Java, libgcj or related libraries for some systems.
718 case "${target}" in
719 powerpc-*-darwin*)
720 ;;
721 i[[3456789]]86-*-darwin*)
722 ;;
723 x86_64-*-darwin[[912]]*)
724 ;;
725 *-*-darwin*)
726 noconfigdirs="$noconfigdirs ${libgcj}"
727 ;;
728 *-*-netware*)
729 noconfigdirs="$noconfigdirs ${libgcj}"
730 ;;
731 *-*-rtems*)
732 noconfigdirs="$noconfigdirs ${libgcj}"
733 ;;
734 *-*-tpf*)
735 noconfigdirs="$noconfigdirs ${libgcj}"
736 ;;
737 *-*-uclinux*)
738 noconfigdirs="$noconfigdirs ${libgcj}"
739 ;;
740 *-*-vxworks*)
741 noconfigdirs="$noconfigdirs ${libgcj}"
742 ;;
743 alpha*-*-*vms*)
744 noconfigdirs="$noconfigdirs ${libgcj}"
745 ;;
746 arm-wince-pe)
747 noconfigdirs="$noconfigdirs ${libgcj}"
748 ;;
749 arm*-*-symbianelf*)
750 noconfigdirs="$noconfigdirs ${libgcj}"
751 ;;
752 bfin-*-*)
753 noconfigdirs="$noconfigdirs target-boehm-gc"
754 ;;
755 cris-*-* | crisv32-*-*)
756 unsupported_languages="$unsupported_languages java"
757 case "${target}" in
758 *-*-linux*)
759 ;;
760 *) # See PR46792 regarding target-libffi.
761 noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
762 esac
763 ;;
764 hppa*64*-*-linux*)
765 # In this case, it's because the hppa64-linux target is for
766 # the kernel only at this point and has no libc, and thus no
767 # headers, crt*.o, etc., all of which are needed by these.
768 unsupported_languages="$unsupported_languages java"
769 ;;
770 hppa*64*-*-hpux*)
771 noconfigdirs="$noconfigdirs ${libgcj}"
772 ;;
773 hppa*-hp-hpux11*)
774 ;;
775 hppa*-*-hpux*)
776 # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
777 # build on HP-UX 10.20.
778 noconfigdirs="$noconfigdirs ${libgcj}"
779 ;;
780 ia64*-*-*vms*)
781 noconfigdirs="$noconfigdirs ${libgcj}"
782 ;;
783 i[[3456789]]86-w64-mingw*)
784 noconfigdirs="$noconfigdirs ${libgcj}"
785 ;;
786 i[[3456789]]86-*-mingw*)
787 noconfigdirs="$noconfigdirs ${libgcj}"
788 ;;
789 x86_64-*-mingw*)
790 noconfigdirs="$noconfigdirs ${libgcj}"
791 ;;
792 mmix-*-*)
793 noconfigdirs="$noconfigdirs target-libffi target-boehm-gc"
794 ;;
795 powerpc-*-aix*)
796 # copied from rs6000-*-* entry
797 noconfigdirs="$noconfigdirs ${libgcj}"
798 ;;
799 rs6000-*-aix*)
800 noconfigdirs="$noconfigdirs ${libgcj}"
801 ;;
802 *-*-lynxos*)
803 noconfigdirs="$noconfigdirs ${libgcj}"
804 ;;
805 esac
807 # Disable libgo for some systems where it is known to not work.
808 # For testing, you can easily override this with --enable-libgo.
809 if test x$enable_libgo = x; then
810 case "${target}" in
811 *-*-darwin*)
812 # PR 46986
813 noconfigdirs="$noconfigdirs target-libgo"
814 ;;
815 *-*-cygwin* | *-*-mingw*)
816 noconfigdirs="$noconfigdirs target-libgo"
817 ;;
818 *-*-aix*)
819 noconfigdirs="$noconfigdirs target-libgo"
820 ;;
821 esac
822 fi
824 # Default libgloss CPU subdirectory.
825 libgloss_dir="$target_cpu"
827 case "${target}" in
828 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
829 libgloss_dir=wince
830 ;;
831 aarch64*-*-* )
832 libgloss_dir=aarch64
833 ;;
834 arm*-*-*)
835 libgloss_dir=arm
836 ;;
837 cris-*-* | crisv32-*-*)
838 libgloss_dir=cris
839 ;;
840 hppa*-*-*)
841 libgloss_dir=pa
842 ;;
843 i[[3456789]]86-*-*)
844 libgloss_dir=i386
845 ;;
846 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
847 libgloss_dir=m68hc11
848 ;;
849 m68*-*-* | fido-*-*)
850 libgloss_dir=m68k
851 ;;
852 mips*-*-*)
853 libgloss_dir=mips
854 ;;
855 powerpc*-*-*)
856 libgloss_dir=rs6000
857 ;;
858 sparc*-*-*)
859 libgloss_dir=sparc
860 ;;
861 esac
863 # Disable newlib and libgloss for various target OSes.
864 case "${target}" in
865 alpha*-dec-osf*)
866 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
867 ;;
868 i[[3456789]]86-*-linux*)
869 # This section makes it possible to build newlib natively on linux.
870 # If we are using a cross compiler then don't configure newlib.
871 if test x${is_cross_compiler} != xno ; then
872 noconfigdirs="$noconfigdirs target-newlib"
873 fi
874 noconfigdirs="$noconfigdirs target-libgloss"
875 # If we are not using a cross compiler, do configure newlib.
876 # Note however, that newlib will only be configured in this situation
877 # if the --with-newlib option has been given, because otherwise
878 # 'target-newlib' will appear in skipdirs.
879 ;;
880 i[[3456789]]86-*-rdos*)
881 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
882 ;;
883 sh*-*-pe|mips*-*-pe|arm-wince-pe)
884 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
885 ;;
886 sparc-*-sunos4*)
887 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
888 ;;
889 *-*-aix*)
890 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
891 ;;
892 *-*-beos*)
893 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
894 ;;
895 *-*-chorusos)
896 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
897 ;;
898 *-*-dragonfly*)
899 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
900 ;;
901 *-*-freebsd*)
902 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
903 ;;
904 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
905 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
906 ;;
907 *-*-lynxos*)
908 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
909 ;;
910 *-*-mingw*)
911 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
912 ;;
913 *-*-netbsd*)
914 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
915 ;;
916 *-*-netware*)
917 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
918 ;;
919 *-*-tpf*)
920 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
921 ;;
922 *-*-uclinux*)
923 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
924 ;;
925 *-*-vxworks*)
926 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
927 ;;
928 esac
930 case "${target}" in
931 *-*-chorusos)
932 ;;
933 powerpc-*-darwin*)
934 noconfigdirs="$noconfigdirs ld gas gdb gprof"
935 noconfigdirs="$noconfigdirs sim target-rda"
936 ;;
937 i[[3456789]]86-*-darwin*)
938 noconfigdirs="$noconfigdirs ld gprof"
939 noconfigdirs="$noconfigdirs sim target-rda"
940 ;;
941 x86_64-*-darwin[[912]]*)
942 noconfigdirs="$noconfigdirs ld gas gprof"
943 noconfigdirs="$noconfigdirs sim target-rda"
944 ;;
945 *-*-darwin*)
946 noconfigdirs="$noconfigdirs ld gas gdb gprof"
947 noconfigdirs="$noconfigdirs sim target-rda"
948 ;;
949 *-*-dragonfly*)
950 ;;
951 *-*-freebsd*)
952 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
953 && test -f /usr/local/include/gmp.h; then
954 with_gmp=/usr/local
955 fi
956 ;;
957 *-*-kaos*)
958 # Remove unsupported stuff on all kaOS configurations.
959 noconfigdirs="$noconfigdirs target-libgloss"
960 ;;
961 *-*-netbsd*)
962 ;;
963 *-*-netware*)
964 ;;
965 *-*-rtems*)
966 noconfigdirs="$noconfigdirs target-libgloss"
967 ;;
968 # The tpf target doesn't support gdb yet.
969 *-*-tpf*)
970 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
971 ;;
972 *-*-uclinux*)
973 noconfigdirs="$noconfigdirs target-rda"
974 ;;
975 *-*-vxworks*)
976 ;;
977 alpha*-dec-osf*)
978 # ld works, but does not support shared libraries.
979 # gas doesn't generate exception information.
980 noconfigdirs="$noconfigdirs gas ld"
981 ;;
982 alpha*-*-*vms*)
983 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
984 ;;
985 alpha*-*-*)
986 # newlib is not 64 bit ready
987 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
988 ;;
989 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
990 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
991 ;;
992 arc-*-*|arceb-*-*)
993 noconfigdirs="$noconfigdirs target-libgloss"
994 ;;
995 arm-*-pe*)
996 noconfigdirs="$noconfigdirs target-libgloss"
997 ;;
998 arm-*-riscix*)
999 noconfigdirs="$noconfigdirs ld target-libgloss"
1000 ;;
1001 avr-*-rtems*)
1002 ;;
1003 avr-*-*)
1004 if test x${with_avrlibc} != xno; then
1005 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1006 fi
1007 ;;
1008 c4x-*-* | tic4x-*-*)
1009 noconfigdirs="$noconfigdirs target-libgloss"
1010 ;;
1011 tic54x-*-*)
1012 noconfigdirs="$noconfigdirs target-libgloss gdb"
1013 ;;
1014 d10v-*-*)
1015 noconfigdirs="$noconfigdirs target-libgloss"
1016 ;;
1017 d30v-*-*)
1018 noconfigdirs="$noconfigdirs gdb"
1019 ;;
1020 fr30-*-elf*)
1021 noconfigdirs="$noconfigdirs gdb"
1022 ;;
1023 moxie-*-*)
1024 noconfigdirs="$noconfigdirs gprof"
1025 ;;
1026 h8300*-*-*)
1027 noconfigdirs="$noconfigdirs target-libgloss"
1028 ;;
1029 h8500-*-*)
1030 noconfigdirs="$noconfigdirs target-libgloss"
1031 ;;
1032 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1033 ;;
1034 hppa*64*-*-linux*)
1035 ;;
1036 hppa*-*-linux*)
1037 ;;
1038 hppa*-*-*elf* | \
1039 hppa*-*-lites* | \
1040 hppa*-*-openbsd* | \
1041 hppa*64*-*-*)
1042 ;;
1043 hppa*-hp-hpux11*)
1044 noconfigdirs="$noconfigdirs ld"
1045 ;;
1046 hppa*-*-pro*)
1047 ;;
1048 hppa*-*-*)
1049 noconfigdirs="$noconfigdirs ld"
1050 ;;
1051 i960-*-*)
1052 noconfigdirs="$noconfigdirs gdb"
1053 ;;
1054 ia64*-*-elf*)
1055 # No gdb support yet.
1056 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1057 ;;
1058 ia64*-**-hpux*)
1059 # No ld support yet.
1060 noconfigdirs="$noconfigdirs libgui itcl ld"
1061 ;;
1062 ia64*-*-*vms*)
1063 # No ld support yet.
1064 noconfigdirs="$noconfigdirs libgui itcl ld"
1065 ;;
1066 i[[3456789]]86-w64-mingw*)
1067 ;;
1068 i[[3456789]]86-*-mingw*)
1069 target_configdirs="$target_configdirs target-winsup"
1070 ;;
1071 *-*-cygwin*)
1072 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1073 noconfigdirs="$noconfigdirs target-libgloss"
1074 # always build newlib if winsup directory is present.
1075 if test -d "$srcdir/winsup/cygwin"; then
1076 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1077 elif test -d "$srcdir/newlib"; then
1078 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1079 fi
1080 ;;
1081 i[[3456789]]86-*-pe)
1082 noconfigdirs="$noconfigdirs target-libgloss"
1083 ;;
1084 i[[3456789]]86-*-sco3.2v5*)
1085 # The linker does not yet know about weak symbols in COFF,
1086 # and is not configured to handle mixed ELF and COFF.
1087 noconfigdirs="$noconfigdirs ld target-libgloss"
1088 ;;
1089 i[[3456789]]86-*-sco*)
1090 noconfigdirs="$noconfigdirs gprof target-libgloss"
1091 ;;
1092 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1093 noconfigdirs="$noconfigdirs target-libgloss"
1094 ;;
1095 i[[3456789]]86-*-sysv4*)
1096 noconfigdirs="$noconfigdirs target-libgloss"
1097 ;;
1098 i[[3456789]]86-*-beos*)
1099 noconfigdirs="$noconfigdirs gdb"
1100 ;;
1101 i[[3456789]]86-*-rdos*)
1102 noconfigdirs="$noconfigdirs gdb"
1103 ;;
1104 mmix-*-*)
1105 noconfigdirs="$noconfigdirs gdb"
1106 ;;
1107 mt-*-*)
1108 noconfigdirs="$noconfigdirs sim"
1109 ;;
1110 powerpc-*-aix*)
1111 # copied from rs6000-*-* entry
1112 noconfigdirs="$noconfigdirs gprof"
1113 ;;
1114 powerpc*-*-winnt* | powerpc*-*-pe*)
1115 target_configdirs="$target_configdirs target-winsup"
1116 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1117 # always build newlib.
1118 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1119 ;;
1120 # This is temporary until we can link against shared libraries
1121 powerpcle-*-solaris*)
1122 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1123 ;;
1124 powerpc-*-beos*)
1125 noconfigdirs="$noconfigdirs gdb"
1126 ;;
1127 rs6000-*-lynxos*)
1128 noconfigdirs="$noconfigdirs gprof"
1129 ;;
1130 rs6000-*-aix*)
1131 noconfigdirs="$noconfigdirs gprof"
1132 ;;
1133 rs6000-*-*)
1134 noconfigdirs="$noconfigdirs gprof"
1135 ;;
1136 m68k-apollo-*)
1137 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1138 ;;
1139 microblaze*)
1140 noconfigdirs="$noconfigdirs gprof"
1141 ;;
1142 mips*-sde-elf* | mips*-mti-elf*)
1143 if test x$with_newlib = xyes; then
1144 noconfigdirs="$noconfigdirs gprof"
1145 fi
1146 ;;
1147 mips*-*-irix5*)
1148 noconfigdirs="$noconfigdirs gprof target-libgloss"
1149 ;;
1150 mips*-*-irix6*)
1151 noconfigdirs="$noconfigdirs gprof target-libgloss"
1152 ;;
1153 mips*-*-bsd*)
1154 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1155 ;;
1156 mips*-*-linux*)
1157 ;;
1158 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1159 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1160 noconfigdirs="$noconfigdirs ld gas gprof"
1161 ;;
1162 mips*-*-*)
1163 noconfigdirs="$noconfigdirs gprof"
1164 ;;
1165 sh-*-* | sh64-*-*)
1166 case "${target}" in
1167 sh*-*-elf)
1168 ;;
1169 *)
1170 noconfigdirs="$noconfigdirs target-libgloss" ;;
1171 esac
1172 ;;
1173 sparc-*-sunos4*)
1174 if test x${is_cross_compiler} = xno ; then
1175 use_gnu_ld=no
1176 fi
1177 ;;
1178 tic6x-*-*)
1179 noconfigdirs="$noconfigdirs sim"
1180 ;;
1181 tilepro*-*-* | tilegx*-*-*)
1182 noconfigdirs="$noconfigdirs sim"
1183 ;;
1184 v810-*-*)
1185 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1186 ;;
1187 vax-*-*)
1188 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1189 ;;
1190 esac
1192 # If we aren't building newlib, then don't build libgloss, since libgloss
1193 # depends upon some newlib header files.
1194 case "${noconfigdirs}" in
1195 *target-libgloss*) ;;
1196 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1197 esac
1199 # Work in distributions that contain no compiler tools, like Autoconf.
1200 host_makefile_frag=/dev/null
1201 if test -d ${srcdir}/config ; then
1202 case "${host}" in
1203 i[[3456789]]86-*-msdosdjgpp*)
1204 host_makefile_frag="config/mh-djgpp"
1205 ;;
1206 *-cygwin*)
1207 ACX_CHECK_CYGWIN_CAT_WORKS
1208 host_makefile_frag="config/mh-cygwin"
1209 ;;
1210 *-mingw*)
1211 host_makefile_frag="config/mh-mingw"
1212 ;;
1213 hppa*-hp-hpux10*)
1214 host_makefile_frag="config/mh-pa-hpux10"
1215 ;;
1216 hppa*-hp-hpux*)
1217 host_makefile_frag="config/mh-pa"
1218 ;;
1219 hppa*-*)
1220 host_makefile_frag="config/mh-pa"
1221 ;;
1222 *-*-darwin*)
1223 host_makefile_frag="config/mh-darwin"
1224 ;;
1225 powerpc-*-aix*)
1226 host_makefile_frag="config/mh-ppc-aix"
1227 ;;
1228 rs6000-*-aix*)
1229 host_makefile_frag="config/mh-ppc-aix"
1230 ;;
1231 esac
1232 fi
1234 if test "${build}" != "${host}" ; then
1235 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1236 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1237 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1238 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1239 GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
1240 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1241 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1242 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1243 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1244 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1245 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1246 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1247 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1248 else
1249 AR_FOR_BUILD="\$(AR)"
1250 AS_FOR_BUILD="\$(AS)"
1251 CC_FOR_BUILD="\$(CC)"
1252 CXX_FOR_BUILD="\$(CXX)"
1253 GCJ_FOR_BUILD="\$(GCJ)"
1254 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1255 GOC_FOR_BUILD="\$(GOC)"
1256 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1257 LD_FOR_BUILD="\$(LD)"
1258 NM_FOR_BUILD="\$(NM)"
1259 RANLIB_FOR_BUILD="\$(RANLIB)"
1260 WINDRES_FOR_BUILD="\$(WINDRES)"
1261 WINDMC_FOR_BUILD="\$(WINDMC)"
1262 fi
1264 AC_PROG_CC
1265 AC_PROG_CXX
1267 # We must set the default linker to the linker used by gcc for the correct
1268 # operation of libtool. If LD is not defined and we are using gcc, try to
1269 # set the LD default to the ld used by gcc.
1270 if test -z "$LD"; then
1271 if test "$GCC" = yes; then
1272 case $build in
1273 *-*-mingw*)
1274 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1275 *)
1276 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1277 esac
1278 case $gcc_prog_ld in
1279 # Accept absolute paths.
1280 [[\\/]* | [A-Za-z]:[\\/]*)]
1281 LD="$gcc_prog_ld" ;;
1282 esac
1283 fi
1284 fi
1286 # Check whether -static-libstdc++ -static-libgcc is supported.
1287 have_static_libs=no
1288 if test "$GCC" = yes; then
1289 saved_LDFLAGS="$LDFLAGS"
1291 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1292 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1293 AC_LANG_PUSH(C++)
1294 AC_LINK_IFELSE([
1295 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1296 #error -static-libstdc++ not implemented
1297 #endif
1298 int main() {}],
1299 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1300 [AC_MSG_RESULT([no])])
1301 AC_LANG_POP(C++)
1303 LDFLAGS="$saved_LDFLAGS"
1304 fi
1306 ACX_PROG_GNAT
1307 ACX_PROG_CMP_IGNORE_INITIAL
1309 AC_ARG_ENABLE([bootstrap],
1310 [AS_HELP_STRING([--enable-bootstrap],
1311 [enable bootstrapping @<:@yes if native build@:>@])],,
1312 enable_bootstrap=default)
1314 # Issue errors and warnings for invalid/strange bootstrap combinations.
1315 if test -r $srcdir/gcc/configure; then
1316 have_compiler=yes
1317 else
1318 have_compiler=no
1319 fi
1321 case "$have_compiler:$host:$target:$enable_bootstrap" in
1322 *:*:*:no) ;;
1324 # Default behavior. Enable bootstrap if we have a compiler
1325 # and we are in a native configuration.
1326 yes:$build:$build:default)
1327 enable_bootstrap=yes ;;
1329 *:*:*:default)
1330 enable_bootstrap=no ;;
1332 # We have a compiler and we are in a native configuration, bootstrap is ok
1333 yes:$build:$build:yes)
1334 ;;
1336 # Other configurations, but we have a compiler. Assume the user knows
1337 # what he's doing.
1338 yes:*:*:yes)
1339 AC_MSG_WARN([trying to bootstrap a cross compiler])
1340 ;;
1342 # No compiler: if they passed --enable-bootstrap explicitly, fail
1343 no:*:*:yes)
1344 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1346 # Fail if wrong command line
1347 *)
1348 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1349 ;;
1350 esac
1352 # Used for setting $lt_cv_objdir
1353 _LT_CHECK_OBJDIR
1355 # Check for GMP, MPFR and MPC
1356 gmplibs="-lmpc -lmpfr -lgmp"
1357 gmpinc=
1358 have_gmp=no
1360 # Specify a location for mpc
1361 # check for this first so it ends up on the link line before mpfr.
1362 AC_ARG_WITH(mpc,
1363 [AS_HELP_STRING([--with-mpc=PATH],
1364 [specify prefix directory for installed MPC package.
1365 Equivalent to --with-mpc-include=PATH/include
1366 plus --with-mpc-lib=PATH/lib])])
1367 AC_ARG_WITH(mpc-include,
1368 [AS_HELP_STRING([--with-mpc-include=PATH],
1369 [specify directory for installed MPC include files])])
1370 AC_ARG_WITH(mpc-lib,
1371 [AS_HELP_STRING([--with-mpc-lib=PATH],
1372 [specify directory for the installed MPC library])])
1374 if test "x$with_mpc" != x; then
1375 gmplibs="-L$with_mpc/lib $gmplibs"
1376 gmpinc="-I$with_mpc/include $gmpinc"
1377 fi
1378 if test "x$with_mpc_include" != x; then
1379 gmpinc="-I$with_mpc_include $gmpinc"
1380 fi
1381 if test "x$with_mpc_lib" != x; then
1382 gmplibs="-L$with_mpc_lib $gmplibs"
1383 fi
1384 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1385 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1386 gmpinc='-I$$s/mpc/src '"$gmpinc"
1387 # Do not test the mpc version. Assume that it is sufficient, since
1388 # it is in the source tree, and the library has not been built yet
1389 # but it would be included on the link line in the version check below
1390 # hence making the test fail.
1391 have_gmp=yes
1392 fi
1394 # Specify a location for mpfr
1395 # check for this first so it ends up on the link line before gmp.
1396 AC_ARG_WITH(mpfr-dir,
1397 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1398 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1399 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1401 AC_ARG_WITH(mpfr,
1402 [AS_HELP_STRING([--with-mpfr=PATH],
1403 [specify prefix directory for installed MPFR package.
1404 Equivalent to --with-mpfr-include=PATH/include
1405 plus --with-mpfr-lib=PATH/lib])])
1406 AC_ARG_WITH(mpfr-include,
1407 [AS_HELP_STRING([--with-mpfr-include=PATH],
1408 [specify directory for installed MPFR include files])])
1409 AC_ARG_WITH(mpfr-lib,
1410 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1411 [specify directory for the installed MPFR library])])
1413 if test "x$with_mpfr" != x; then
1414 gmplibs="-L$with_mpfr/lib $gmplibs"
1415 gmpinc="-I$with_mpfr/include $gmpinc"
1416 fi
1417 if test "x$with_mpfr_include" != x; then
1418 gmpinc="-I$with_mpfr_include $gmpinc"
1419 fi
1420 if test "x$with_mpfr_lib" != x; then
1421 gmplibs="-L$with_mpfr_lib $gmplibs"
1422 fi
1423 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1424 # MPFR v3.1.0 moved the sources into a src sub-directory.
1425 if test -d ${srcdir}/mpfr/src; then
1426 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1427 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1428 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1429 else
1430 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir $gmplibs"
1431 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1432 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir"
1433 fi
1434 # Do not test the mpfr version. Assume that it is sufficient, since
1435 # it is in the source tree, and the library has not been built yet
1436 # but it would be included on the link line in the version check below
1437 # hence making the test fail.
1438 have_gmp=yes
1439 fi
1441 # Specify a location for gmp
1442 AC_ARG_WITH(gmp-dir,
1443 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1444 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1445 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1447 AC_ARG_WITH(gmp,
1448 [AS_HELP_STRING([--with-gmp=PATH],
1449 [specify prefix directory for the installed GMP package.
1450 Equivalent to --with-gmp-include=PATH/include
1451 plus --with-gmp-lib=PATH/lib])])
1452 AC_ARG_WITH(gmp-include,
1453 [AS_HELP_STRING([--with-gmp-include=PATH],
1454 [specify directory for installed GMP include files])])
1455 AC_ARG_WITH(gmp-lib,
1456 [AS_HELP_STRING([--with-gmp-lib=PATH],
1457 [specify directory for the installed GMP library])])
1460 if test "x$with_gmp" != x; then
1461 gmplibs="-L$with_gmp/lib $gmplibs"
1462 gmpinc="-I$with_gmp/include $gmpinc"
1463 fi
1464 if test "x$with_gmp_include" != x; then
1465 gmpinc="-I$with_gmp_include $gmpinc"
1466 fi
1467 if test "x$with_gmp_lib" != x; then
1468 gmplibs="-L$with_gmp_lib $gmplibs"
1469 fi
1470 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1471 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1472 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1473 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1474 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1475 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1476 # Do not test the gmp version. Assume that it is sufficient, since
1477 # it is in the source tree, and the library has not been built yet
1478 # but it would be included on the link line in the version check below
1479 # hence making the test fail.
1480 have_gmp=yes
1481 fi
1483 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1484 have_gmp=yes
1485 saved_CFLAGS="$CFLAGS"
1486 CFLAGS="$CFLAGS $gmpinc"
1487 # Check for the recommended and required versions of GMP.
1488 AC_MSG_CHECKING([for the correct version of gmp.h])
1489 AC_TRY_COMPILE([#include "gmp.h"],[
1490 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1491 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1492 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1493 choke me
1494 #endif
1495 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1496 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1497 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1498 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1499 choke me
1500 #endif
1501 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1502 [AC_MSG_RESULT([no]); have_gmp=no])
1504 # If we have GMP, check the MPFR version.
1505 if test x"$have_gmp" = xyes; then
1506 # Check for the recommended and required versions of MPFR.
1507 AC_MSG_CHECKING([for the correct version of mpfr.h])
1508 AC_TRY_COMPILE([#include <gmp.h>
1509 #include <mpfr.h>],[
1510 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1511 choke me
1512 #endif
1513 ], [AC_TRY_COMPILE([#include <gmp.h>
1514 #include <mpfr.h>],[
1515 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1516 choke me
1517 #endif
1518 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1519 [AC_MSG_RESULT([no]); have_gmp=no])
1520 fi
1522 # Check for the MPC header version.
1523 if test x"$have_gmp" = xyes ; then
1524 # Check for the recommended and required versions of MPC.
1525 AC_MSG_CHECKING([for the correct version of mpc.h])
1526 AC_TRY_COMPILE([#include <mpc.h>],[
1527 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1528 choke me
1529 #endif
1530 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1531 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1532 choke me
1533 #endif
1534 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1535 [AC_MSG_RESULT([no]); have_gmp=no])
1536 fi
1538 # Now check the MPFR library.
1539 if test x"$have_gmp" = xyes; then
1540 saved_LIBS="$LIBS"
1541 LIBS="$LIBS $gmplibs"
1542 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1543 AC_TRY_LINK([#include <mpc.h>],[
1544 mpfr_t n;
1545 mpfr_t x;
1546 mpc_t c;
1547 int t;
1548 mpfr_init (n);
1549 mpfr_init (x);
1550 mpfr_atan2 (n, n, x, GMP_RNDN);
1551 mpfr_erfc (n, x, GMP_RNDN);
1552 mpfr_subnormalize (x, t, GMP_RNDN);
1553 mpfr_clear(n);
1554 mpfr_clear(x);
1555 mpc_init2 (c, 53);
1556 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1557 mpc_cosh (c, c, MPC_RNDNN);
1558 mpc_pow (c, c, c, MPC_RNDNN);
1559 mpc_acosh (c, c, MPC_RNDNN);
1560 mpc_clear (c);
1561 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1562 LIBS="$saved_LIBS"
1563 fi
1565 CFLAGS="$saved_CFLAGS"
1567 # The library versions listed in the error message below should match
1568 # the HARD-minimums enforced above.
1569 if test x$have_gmp != xyes; then
1570 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1571 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1572 their locations. Source code for these libraries can be found at
1573 their respective hosting sites as well as at
1574 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1575 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1576 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1577 make sure that you have installed both the libraries and the header
1578 files. They may be located in separate packages.])
1579 fi
1580 fi
1582 # Flags needed for both GMP, MPFR and/or MPC.
1583 AC_SUBST(gmplibs)
1584 AC_SUBST(gmpinc)
1585 AC_SUBST(extra_mpfr_configure_flags)
1586 AC_SUBST(extra_mpc_gmp_configure_flags)
1587 AC_SUBST(extra_mpc_mpfr_configure_flags)
1588 AC_SUBST(extra_isl_gmp_configure_flags)
1590 # Allow host libstdc++ to be specified for static linking with PPL.
1591 AC_ARG_WITH(host-libstdcxx,
1592 [AS_HELP_STRING([--with-host-libstdcxx=L],
1593 [use linker arguments L to link with libstdc++
1594 when linking with PPL])])
1596 case $with_host_libstdcxx in
1597 no|yes)
1598 AC_MSG_ERROR([-with-host-libstdcxx needs an argument])
1599 ;;
1600 esac
1602 # Libraries to use for stage1 or when not bootstrapping.
1603 AC_ARG_WITH(stage1-libs,
1604 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1605 [if test "$withval" = "no" -o "$withval" = "yes"; then
1606 stage1_libs=
1607 else
1608 stage1_libs=$withval
1609 fi],
1610 [stage1_libs=$with_host_libstdcxx])
1611 AC_SUBST(stage1_libs)
1613 # Linker flags to use for stage1 or when not bootstrapping.
1614 AC_ARG_WITH(stage1-ldflags,
1615 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1616 [if test "$withval" = "no" -o "$withval" = "yes"; then
1617 stage1_ldflags=
1618 else
1619 stage1_ldflags=$withval
1620 fi],
1621 [stage1_ldflags=
1622 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1623 # if supported. But if the user explicitly specified the libraries to use,
1624 # trust that they are doing what they want.
1625 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1626 stage1_ldflags="-static-libstdc++ -static-libgcc"
1627 fi])
1628 AC_SUBST(stage1_ldflags)
1630 # Libraries to use for stage2 and later builds. This defaults to the
1631 # argument passed to --with-host-libstdcxx.
1632 AC_ARG_WITH(boot-libs,
1633 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1634 [if test "$withval" = "no" -o "$withval" = "yes"; then
1635 poststage1_libs=
1636 else
1637 poststage1_libs=$withval
1638 fi],
1639 [poststage1_libs=$with_host_libstdcxx])
1640 AC_SUBST(poststage1_libs)
1642 # Linker flags to use for stage2 and later builds.
1643 AC_ARG_WITH(boot-ldflags,
1644 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1645 [linker flags for stage2 and later])],
1646 [if test "$withval" = "no" -o "$withval" = "yes"; then
1647 poststage1_ldflags=
1648 else
1649 poststage1_ldflags=$withval
1650 fi],
1651 [poststage1_ldflags=
1652 # In stages 2 and 3, default to linking libstdc++ and libgcc
1653 # statically. But if the user explicitly specified the libraries to
1654 # use, trust that they are doing what they want.
1655 if test "$poststage1_libs" = ""; then
1656 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1657 fi])
1658 AC_SUBST(poststage1_ldflags)
1660 # GCC GRAPHITE dependences, ISL and CLOOG which in turn requires ISL.
1661 # Basic setup is inlined here, actual checks are in config/cloog.m4 and
1662 # config/isl.m4
1664 AC_ARG_WITH(cloog,
1665 [AS_HELP_STRING(
1666 [--with-cloog=PATH],
1667 [Specify prefix directory for the installed CLooG-ISL package.
1668 Equivalent to --with-cloog-include=PATH/include
1669 plus --with-cloog-lib=PATH/lib])])
1670 AC_ARG_WITH(isl,
1671 [AS_HELP_STRING(
1672 [--with-isl=PATH],
1673 [Specify prefix directory for the installed ISL package.
1674 Equivalent to --with-isl-include=PATH/include
1675 plus --with-isl-lib=PATH/lib])])
1677 # Treat either --without-cloog or --without-isl as a request to disable
1678 # GRAPHITE support and skip all following checks.
1679 if test "x$with_isl" != "xno" &&
1680 test "x$with_cloog" != "xno"; then
1681 # Check for ISL
1682 dnl Provide configure switches and initialize islinc & isllibs
1683 dnl with user input.
1684 ISL_INIT_FLAGS
1685 dnl The versions of ISL that work for Graphite
1686 ISL_CHECK_VERSION(0,10)
1687 if test "${gcc_cv_isl}" = no ; then
1688 ISL_CHECK_VERSION(0,11)
1689 if test "${gcc_cv_isl}" = no ; then
1690 ISL_CHECK_VERSION(0,12)
1691 fi
1692 fi
1693 dnl Only execute fail-action, if ISL has been requested.
1694 ISL_IF_FAILED([
1695 AC_MSG_ERROR([Unable to find a usable ISL. See config.log for details.])])
1697 if test "x$gcc_cv_isl" != "xno"; then
1698 # Check for CLOOG
1699 dnl Provide configure switches and initialize clooginc & clooglibs
1700 dnl with user input.
1701 CLOOG_INIT_FLAGS
1702 dnl The versions of CLooG that work for Graphite.
1703 CLOOG_CHECK_VERSION(0,17,0)
1704 if test "${gcc_cv_cloog}" = no ; then
1705 CLOOG_CHECK_VERSION(0,18,0)
1706 fi
1708 dnl Only execute fail-action, if CLooG has been requested.
1709 CLOOG_IF_FAILED([
1710 AC_MSG_ERROR([Unable to find a usable CLooG. See config.log for details.])])
1711 fi
1712 fi
1714 # If either the ISL or the CLooG check failed, disable builds of in-tree
1715 # variants of both
1716 if test "x$with_isl" = xno ||
1717 test "x$with_cloog" = xno ||
1718 test "x$gcc_cv_cloog" = xno ||
1719 test "x$gcc_cv_isl" = xno; then
1720 noconfigdirs="$noconfigdirs cloog isl"
1721 islinc=
1722 clooginc=
1723 clooglibs=
1724 fi
1726 AC_SUBST(islinc)
1727 AC_SUBST(clooglibs)
1728 AC_SUBST(clooginc)
1731 # Check for LTO support.
1732 AC_ARG_ENABLE(lto,
1733 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1734 enable_lto=$enableval,
1735 enable_lto=yes; default_enable_lto=yes)
1737 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1738 build_lto_plugin=yes
1739 ],[if test x"$default_enable_lto" = x"yes" ; then
1740 case $target in
1741 *-apple-darwin9* | *-cygwin* | *-mingw*) ;;
1742 # On other non-ELF platforms, LTO has yet to be validated.
1743 *) enable_lto=no ;;
1744 esac
1745 else
1746 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1747 # It would also be nice to check the binutils support, but we don't
1748 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1749 # warn during gcc/ subconfigure; unless you're bootstrapping with
1750 # -flto it won't be needed until after installation anyway.
1751 case $target in
1752 *-cygwin* | *-mingw* | *-apple-darwin*) ;;
1753 *) if test x"$enable_lto" = x"yes"; then
1754 AC_MSG_ERROR([LTO support is not enabled for this target.])
1755 fi
1756 ;;
1757 esac
1758 fi
1759 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1760 # Build it unless LTO was explicitly disabled.
1761 case $target in
1762 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1763 *) ;;
1764 esac
1765 ])
1768 # By default, C and C++ are the only stage 1 languages.
1769 stage1_languages=,c,
1771 # Target libraries that we bootstrap.
1772 bootstrap_target_libs=,target-libgcc,
1774 # Figure out what language subdirectories are present.
1775 # Look if the user specified --enable-languages="..."; if not, use
1776 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1777 # go away some day.
1778 # NB: embedded tabs in this IF block -- do not untabify
1779 if test -d ${srcdir}/gcc; then
1780 if test x"${enable_languages+set}" != xset; then
1781 if test x"${LANGUAGES+set}" = xset; then
1782 enable_languages="${LANGUAGES}"
1783 echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1784 else
1785 enable_languages=all
1786 fi
1787 else
1788 if test x"${enable_languages}" = x ||
1789 test x"${enable_languages}" = xyes;
1790 then
1791 echo configure.in: --enable-languages needs at least one language argument 1>&2
1792 exit 1
1793 fi
1794 fi
1795 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1797 # 'f95' is the old name for the 'fortran' language. We issue a warning
1798 # and make the substitution.
1799 case ,${enable_languages}, in
1800 *,f95,*)
1801 echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1802 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1803 ;;
1804 esac
1806 # If bootstrapping, C++ must be enabled.
1807 case ",$enable_languages,:$enable_bootstrap" in
1808 *,c++,*:*) ;;
1809 *:yes)
1810 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1811 enable_languages="${enable_languages},c++"
1812 else
1813 AC_MSG_ERROR([bootstrapping requires c++ sources])
1814 fi
1815 ;;
1816 esac
1818 # First scan to see if an enabled language requires some other language.
1819 # We assume that a given config-lang.in will list all the language
1820 # front ends it requires, even if some are required indirectly.
1821 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1822 case ${lang_frag} in
1823 ..) ;;
1824 # The odd quoting in the next line works around
1825 # an apparent bug in bash 1.12 on linux.
1826 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1827 *)
1828 # From the config-lang.in, get $language, $lang_requires, and
1829 # $lang_requires_boot_languages.
1830 language=
1831 lang_requires=
1832 lang_requires_boot_languages=
1833 . ${lang_frag}
1834 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1835 case ,${enable_languages}, in
1836 *,$other,*) ;;
1837 *,all,*) ;;
1838 *,$language,*)
1839 echo " \`$other' language required by \`$language'; enabling" 1>&2
1840 enable_languages="${enable_languages},${other}"
1841 ;;
1842 esac
1843 done
1844 for other in ${lang_requires_boot_languages} ; do
1845 if test "$other" != "c"; then
1846 case ,${enable_stage1_languages}, in
1847 *,$other,*) ;;
1848 *,all,*) ;;
1849 *)
1850 case ,${enable_languages}, in
1851 *,$language,*)
1852 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1853 enable_stage1_languages="$enable_stage1_languages,${other}"
1854 ;;
1855 esac
1856 ;;
1857 esac
1858 fi
1859 done
1860 ;;
1861 esac
1862 done
1864 new_enable_languages=,c,
1866 # If LTO is enabled, add the LTO front end.
1867 extra_host_libiberty_configure_flags=
1868 if test "$enable_lto" = "yes" ; then
1869 case ,${enable_languages}, in
1870 *,lto,*) ;;
1871 *) enable_languages="${enable_languages},lto" ;;
1872 esac
1873 if test "${build_lto_plugin}" = "yes" ; then
1874 configdirs="$configdirs lto-plugin"
1875 extra_host_libiberty_configure_flags=--enable-shared
1876 fi
1877 fi
1878 AC_SUBST(extra_host_libiberty_configure_flags)
1880 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1881 potential_languages=,c,
1883 enabled_target_libs=
1884 disabled_target_libs=
1886 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1887 case ${lang_frag} in
1888 ..) ;;
1889 # The odd quoting in the next line works around
1890 # an apparent bug in bash 1.12 on linux.
1891 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1892 *)
1893 # From the config-lang.in, get $language, $target_libs,
1894 # $lang_dirs, $boot_language, and $build_by_default
1895 language=
1896 target_libs=
1897 lang_dirs=
1898 subdir_requires=
1899 boot_language=no
1900 build_by_default=yes
1901 . ${lang_frag}
1902 if test x${language} = x; then
1903 echo "${lang_frag} doesn't set \$language." 1>&2
1904 exit 1
1905 fi
1907 if test "$language" = "c++"; then
1908 boot_language=yes
1909 fi
1911 add_this_lang=no
1912 case ,${enable_languages}, in
1913 *,${language},*)
1914 # Language was explicitly selected; include it
1915 # unless it is C, which is enabled by default.
1916 if test "$language" != "c"; then
1917 add_this_lang=yes
1918 fi
1919 ;;
1920 *,all,*)
1921 # 'all' was selected, select it if it is a default language
1922 if test "$language" != "c"; then
1923 add_this_lang=${build_by_default}
1924 fi
1925 ;;
1926 esac
1928 # Disable languages that need other directories if these aren't available.
1929 for i in $subdir_requires; do
1930 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1931 case ,${enable_languages}, in
1932 *,${language},*)
1933 # Specifically requested language; tell them.
1934 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1935 ;;
1936 *)
1937 # Silently disable.
1938 add_this_lang=unsupported
1939 ;;
1940 esac
1941 done
1943 # Disable Ada if no preexisting GNAT is available.
1944 case ,${enable_languages},:${language}:${have_gnat} in
1945 *,${language},*:ada:no)
1946 # Specifically requested language; tell them.
1947 AC_MSG_ERROR([GNAT is required to build $language])
1948 ;;
1949 *:ada:no)
1950 # Silently disable.
1951 add_this_lang=unsupported
1952 ;;
1953 esac
1955 # Disable a language that is unsupported by the target.
1956 case " $unsupported_languages " in
1957 *" $language "*)
1958 add_this_lang=unsupported
1959 ;;
1960 esac
1962 case $add_this_lang in
1963 unsupported)
1964 # Remove language-dependent dirs.
1965 disabled_target_libs="$disabled_target_libs $target_libs"
1966 noconfigdirs="$noconfigdirs $lang_dirs"
1967 ;;
1968 no)
1969 # Remove language-dependent dirs; still show language as supported.
1970 disabled_target_libs="$disabled_target_libs $target_libs"
1971 noconfigdirs="$noconfigdirs $lang_dirs"
1972 potential_languages="${potential_languages}${language},"
1973 ;;
1974 yes)
1975 new_enable_languages="${new_enable_languages}${language},"
1976 potential_languages="${potential_languages}${language},"
1977 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1978 enabled_target_libs="$enabled_target_libs $target_libs"
1979 case "${boot_language}:,$enable_stage1_languages," in
1980 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
1981 # Add to (comma-separated) list of stage 1 languages.
1982 case ",$stage1_languages," in
1983 *,$language,* | ,yes, | ,all,) ;;
1984 *) stage1_languages="${stage1_languages}${language}," ;;
1985 esac
1986 # We need to bootstrap any supporting libraries.
1987 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
1988 ;;
1989 esac
1990 ;;
1991 esac
1992 ;;
1993 esac
1994 done
1996 # Add target libraries which are only needed for disabled languages
1997 # to noconfigdirs.
1998 if test -n "$disabled_target_libs"; then
1999 for dir in $disabled_target_libs; do
2000 case " $enabled_target_libs " in
2001 *" ${dir} "*) ;;
2002 *) noconfigdirs="$noconfigdirs $dir" ;;
2003 esac
2004 done
2005 fi
2007 AC_ARG_ENABLE(stage1-languages,
2008 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2009 [choose additional languages to build during
2010 stage1. Mostly useful for compiler development])],
2011 [case ,${enable_stage1_languages}, in
2012 ,no,|,,)
2013 # Set it to something that will have no effect in the loop below
2014 enable_stage1_languages=c ;;
2015 ,yes,)
2016 enable_stage1_languages=`echo $new_enable_languages | \
2017 sed -e "s/^,//" -e "s/,$//" ` ;;
2018 *,all,*)
2019 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2020 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2021 esac
2023 # Add "good" languages from enable_stage1_languages to stage1_languages,
2024 # while "bad" languages go in missing_languages. Leave no duplicates.
2025 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2026 case $potential_languages in
2027 *,$i,*)
2028 case $stage1_languages in
2029 *,$i,*) ;;
2030 *) stage1_languages="$stage1_languages$i," ;;
2031 esac ;;
2032 *)
2033 case $missing_languages in
2034 *,$i,*) ;;
2035 *) missing_languages="$missing_languages$i," ;;
2036 esac ;;
2037 esac
2038 done])
2040 # Remove leading/trailing commas that were added for simplicity
2041 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2042 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2043 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2044 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2046 if test "x$missing_languages" != x; then
2047 AC_MSG_ERROR([
2048 The following requested languages could not be built: ${missing_languages}
2049 Supported languages are: ${potential_languages}])
2050 fi
2051 if test "x$new_enable_languages" != "x$enable_languages"; then
2052 echo The following languages will be built: ${new_enable_languages}
2053 enable_languages="$new_enable_languages"
2054 fi
2056 AC_SUBST(stage1_languages)
2057 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2058 fi
2060 # Handle --disable-<component> generically.
2061 for dir in $configdirs $build_configdirs $target_configdirs ; do
2062 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2063 varname=`echo $dirname | sed -e s/+/_/g`
2064 if eval test x\${enable_${varname}} "=" xno ; then
2065 noconfigdirs="$noconfigdirs $dir"
2066 fi
2067 done
2069 # Check for Boehm's garbage collector
2070 AC_ARG_ENABLE(objc-gc,
2071 [AS_HELP_STRING([--enable-objc-gc],
2072 [enable use of Boehm's garbage collector with the
2073 GNU Objective-C runtime])],
2074 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
2075 *,objc,*:*:yes:*target-boehm-gc*)
2076 AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
2077 ;;
2078 esac])
2080 # Make sure we only build Boehm's garbage collector if required.
2081 case ,${enable_languages},:${enable_objc_gc} in
2082 *,objc,*:yes)
2083 # Keep target-boehm-gc if requested for Objective-C.
2084 ;;
2085 *)
2086 # Otherwise remove target-boehm-gc depending on target-libjava.
2087 if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
2088 noconfigdirs="$noconfigdirs target-boehm-gc"
2089 fi
2090 ;;
2091 esac
2093 # Disable libitm, libsanitizer, libvtv if we're not building C++
2094 case ,${enable_languages}, in
2095 *,c++,*) ;;
2096 *)
2097 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer target-libvtv"
2098 ;;
2099 esac
2101 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2102 # $build_configdirs and $target_configdirs.
2103 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2105 notsupp=""
2106 for dir in . $skipdirs $noconfigdirs ; do
2107 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2108 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2109 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2110 if test -r $srcdir/$dirname/configure ; then
2111 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2112 true
2113 else
2114 notsupp="$notsupp $dir"
2115 fi
2116 fi
2117 fi
2118 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2119 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2120 if test -r $srcdir/$dirname/configure ; then
2121 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2122 true
2123 else
2124 notsupp="$notsupp $dir"
2125 fi
2126 fi
2127 fi
2128 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2129 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2130 if test -r $srcdir/$dirname/configure ; then
2131 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2132 true
2133 else
2134 notsupp="$notsupp $dir"
2135 fi
2136 fi
2137 fi
2138 done
2140 # Quietly strip out all directories which aren't configurable in this tree.
2141 # This relies on all configurable subdirectories being autoconfiscated, which
2142 # is now the case.
2143 build_configdirs_all="$build_configdirs"
2144 build_configdirs=
2145 for i in ${build_configdirs_all} ; do
2146 j=`echo $i | sed -e s/build-//g`
2147 if test -f ${srcdir}/$j/configure ; then
2148 build_configdirs="${build_configdirs} $i"
2149 fi
2150 done
2152 configdirs_all="$configdirs"
2153 configdirs=
2154 for i in ${configdirs_all} ; do
2155 case $i in
2156 accel-gcc)
2157 confsrcdir=gcc
2158 ;;
2159 *)
2160 confsrcdir=$i
2161 ;;
2162 esac
2163 if test -f ${srcdir}/${confsrcdir}/configure ; then
2164 configdirs="${configdirs} $i"
2165 fi
2166 done
2168 target_configdirs_all="$target_configdirs"
2169 target_configdirs=
2170 for i in ${target_configdirs_all} ; do
2171 j=`echo $i | sed -e s/target-//g`
2172 if test -f ${srcdir}/$j/configure ; then
2173 target_configdirs="${target_configdirs} $i"
2174 fi
2175 done
2177 # Produce a warning message for the subdirs we can't configure.
2178 # This isn't especially interesting in the Cygnus tree, but in the individual
2179 # FSF releases, it's important to let people know when their machine isn't
2180 # supported by the one or two programs in a package.
2182 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2183 # If $appdirs is non-empty, at least one of those directories must still
2184 # be configured, or we error out. (E.g., if the gas release supports a
2185 # specified target in some subdirs but not the gas subdir, we shouldn't
2186 # pretend that all is well.)
2187 if test -n "$appdirs" ; then
2188 for dir in $appdirs ; do
2189 if test -r $dir/Makefile.in ; then
2190 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2191 appdirs=""
2192 break
2193 fi
2194 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2195 appdirs=""
2196 break
2197 fi
2198 fi
2199 done
2200 if test -n "$appdirs" ; then
2201 echo "*** This configuration is not supported by this package." 1>&2
2202 exit 1
2203 fi
2204 fi
2205 # Okay, some application will build, or we don't care to check. Still
2206 # notify of subdirs not getting built.
2207 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2208 echo " ${notsupp}" 1>&2
2209 echo " (Any other directories should still work fine.)" 1>&2
2210 fi
2212 case "$host" in
2213 *msdosdjgpp*)
2214 enable_gdbtk=no ;;
2215 esac
2217 # To find our prefix, in gcc_cv_tool_prefix.
2218 ACX_TOOL_DIRS
2220 copy_dirs=
2222 AC_ARG_WITH([build-sysroot],
2223 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2224 [use sysroot as the system root during the build])],
2225 [if test x"$withval" != x ; then
2226 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2227 fi],
2228 [SYSROOT_CFLAGS_FOR_TARGET=])
2229 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2231 AC_ARG_WITH([debug-prefix-map],
2232 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2233 [map A to B, C to D ... in debug information])],
2234 [if test x"$withval" != x; then
2235 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2236 for debug_map in $withval; do
2237 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2238 done
2239 fi],
2240 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2241 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2243 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2244 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2245 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2246 # We want to ensure that TARGET libraries (which we know are built with
2247 # gcc) are built with "-O2 -g", so include those options when setting
2248 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2249 if test "x$CFLAGS_FOR_TARGET" = x; then
2250 CFLAGS_FOR_TARGET=$CFLAGS
2251 case " $CFLAGS " in
2252 *" -O2 "*) ;;
2253 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2254 esac
2255 case " $CFLAGS " in
2256 *" -g "* | *" -g3 "*) ;;
2257 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2258 esac
2259 fi
2260 AC_SUBST(CFLAGS_FOR_TARGET)
2262 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2263 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2264 case " $CXXFLAGS " in
2265 *" -O2 "*) ;;
2266 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2267 esac
2268 case " $CXXFLAGS " in
2269 *" -g "* | *" -g3 "*) ;;
2270 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2271 esac
2272 fi
2273 AC_SUBST(CXXFLAGS_FOR_TARGET)
2275 AC_SUBST(LDFLAGS_FOR_TARGET)
2277 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2278 # the named directory are copied to $(tooldir)/sys-include.
2279 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2280 if test x${is_cross_compiler} = xno ; then
2281 echo 1>&2 '***' --with-headers is only supported when cross compiling
2282 exit 1
2283 fi
2284 if test x"${with_headers}" != xyes ; then
2285 x=${gcc_cv_tool_prefix}
2286 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2287 fi
2288 fi
2290 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2291 # the name directories are copied to $(tooldir)/lib. Multiple directories
2292 # are permitted.
2293 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2294 if test x${is_cross_compiler} = xno ; then
2295 echo 1>&2 '***' --with-libs is only supported when cross compiling
2296 exit 1
2297 fi
2298 if test x"${with_libs}" != xyes ; then
2299 # Copy the libraries in reverse order, so that files in the first named
2300 # library override files in subsequent libraries.
2301 x=${gcc_cv_tool_prefix}
2302 for l in ${with_libs}; do
2303 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2304 done
2305 fi
2306 fi
2308 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2309 #
2310 # This is done by determining whether or not the appropriate directory
2311 # is available, and by checking whether or not specific configurations
2312 # have requested that this magic not happen.
2313 #
2314 # The command line options always override the explicit settings in
2315 # configure.in, and the settings in configure.in override this magic.
2316 #
2317 # If the default for a toolchain is to use GNU as and ld, and you don't
2318 # want to do that, then you should use the --without-gnu-as and
2319 # --without-gnu-ld options for the configure script. Similarly, if
2320 # the default is to use the included zlib and you don't want to do that,
2321 # you should use the --with-system-zlib option for the configure script.
2323 if test x${use_gnu_as} = x &&
2324 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2325 with_gnu_as=yes
2326 extra_host_args="$extra_host_args --with-gnu-as"
2327 fi
2329 if test x${use_gnu_ld} = x &&
2330 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2331 with_gnu_ld=yes
2332 extra_host_args="$extra_host_args --with-gnu-ld"
2333 fi
2335 if test x${use_included_zlib} = x &&
2336 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2337 :
2338 else
2339 with_system_zlib=yes
2340 extra_host_args="$extra_host_args --with-system-zlib"
2341 fi
2343 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2344 # can detect this case.
2346 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2347 with_newlib=yes
2348 extra_host_args="$extra_host_args --with-newlib"
2349 fi
2351 # Handle ${copy_dirs}
2352 set fnord ${copy_dirs}
2353 shift
2354 while test $# != 0 ; do
2355 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2356 :
2357 else
2358 echo Copying $1 to $2
2360 # Use the install script to create the directory and all required
2361 # parent directories.
2362 if test -d $2 ; then
2363 :
2364 else
2365 echo >config.temp
2366 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2367 fi
2369 # Copy the directory, assuming we have tar.
2370 # FIXME: Should we use B in the second tar? Not all systems support it.
2371 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2373 # It is the responsibility of the user to correctly adjust all
2374 # symlinks. If somebody can figure out how to handle them correctly
2375 # here, feel free to add the code.
2377 echo $1 > $2/COPIED
2378 fi
2379 shift; shift
2380 done
2382 # Determine a target-dependent exec_prefix that the installed
2383 # gcc will search in. Keep this list sorted by triplet, with
2384 # the *-*-osname triplets last.
2385 md_exec_prefix=
2386 case "${target}" in
2387 i[[34567]]86-pc-msdosdjgpp*)
2388 md_exec_prefix=/dev/env/DJDIR/bin
2389 ;;
2390 *-*-hpux* | \
2391 *-*-nto-qnx* | \
2392 *-*-solaris2*)
2393 md_exec_prefix=/usr/ccs/bin
2394 ;;
2395 esac
2397 extra_arflags_for_target=
2398 extra_nmflags_for_target=
2399 extra_ranlibflags_for_target=
2400 target_makefile_frag=/dev/null
2401 case "${target}" in
2402 spu-*-*)
2403 target_makefile_frag="config/mt-spu"
2404 ;;
2405 mips*-sde-elf* | mips*-mti-elf*)
2406 target_makefile_frag="config/mt-sde"
2407 ;;
2408 mipsisa*-*-elfoabi*)
2409 target_makefile_frag="config/mt-mips-elfoabi"
2410 ;;
2411 mips*-*-*linux* | mips*-*-gnu*)
2412 target_makefile_frag="config/mt-mips-gnu"
2413 ;;
2414 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2415 target_makefile_frag="config/mt-gnu"
2416 ;;
2417 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2418 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2419 # commands to handle both 32-bit and 64-bit objects. These flags are
2420 # harmless if we're using GNU nm or ar.
2421 extra_arflags_for_target=" -X32_64"
2422 extra_nmflags_for_target=" -B -X32_64"
2423 ;;
2424 esac
2426 alphaieee_frag=/dev/null
2427 case $target in
2428 alpha*-*-*)
2429 # This just makes sure to use the -mieee option to build target libs.
2430 # This should probably be set individually by each library.
2431 alphaieee_frag="config/mt-alphaieee"
2432 ;;
2433 esac
2435 # If --enable-target-optspace always use -Os instead of -O2 to build
2436 # the target libraries, similarly if it is not specified, use -Os
2437 # on selected platforms.
2438 ospace_frag=/dev/null
2439 case "${enable_target_optspace}:${target}" in
2440 yes:*)
2441 ospace_frag="config/mt-ospace"
2442 ;;
2443 :d30v-*)
2444 ospace_frag="config/mt-d30v"
2445 ;;
2446 :m32r-* | :d10v-* | :fr30-*)
2447 ospace_frag="config/mt-ospace"
2448 ;;
2449 no:* | :*)
2450 ;;
2451 *)
2452 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2453 ;;
2454 esac
2456 # Some systems (e.g., one of the i386-aix systems the gas testers are
2457 # using) don't handle "\$" correctly, so don't use it here.
2458 tooldir='${exec_prefix}'/${target_noncanonical}
2459 build_tooldir=${tooldir}
2461 # Create a .gdbinit file which runs the one in srcdir
2462 # and tells GDB to look there for source files.
2464 if test -r ${srcdir}/.gdbinit ; then
2465 case ${srcdir} in
2466 .) ;;
2467 *) cat > ./.gdbinit <<EOF
2468 # ${NO_EDIT}
2469 dir ${srcdir}
2470 dir .
2471 source ${srcdir}/.gdbinit
2472 EOF
2473 ;;
2474 esac
2475 fi
2477 # Make sure that the compiler is able to generate an executable. If it
2478 # can't, we are probably in trouble. We don't care whether we can run the
2479 # executable--we might be using a cross compiler--we only care whether it
2480 # can be created. At this point the main configure script has set CC.
2481 we_are_ok=no
2482 echo "int main () { return 0; }" > conftest.c
2483 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2484 if test $? = 0 ; then
2485 if test -s conftest || test -s conftest.exe ; then
2486 we_are_ok=yes
2487 fi
2488 fi
2489 case $we_are_ok in
2490 no)
2491 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2492 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2493 rm -f conftest*
2494 exit 1
2495 ;;
2496 esac
2497 rm -f conftest*
2499 # Decide which environment variable is used to find dynamic libraries.
2500 case "${host}" in
2501 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2502 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2503 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2504 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2505 esac
2507 # On systems where the dynamic library environment variable is PATH,
2508 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2509 # built executables to PATH.
2510 if test "$RPATH_ENVVAR" = PATH; then
2511 GCC_SHLIB_SUBDIR=/shlib
2512 else
2513 GCC_SHLIB_SUBDIR=
2514 fi
2516 # Adjust the toplevel makefile according to whether bootstrap was selected.
2517 case $enable_bootstrap in
2518 yes)
2519 bootstrap_suffix=bootstrap
2520 BUILD_CONFIG=bootstrap-debug
2521 ;;
2522 no)
2523 bootstrap_suffix=no-bootstrap
2524 BUILD_CONFIG=
2525 ;;
2526 esac
2528 AC_MSG_CHECKING(for default BUILD_CONFIG)
2530 AC_ARG_WITH([build-config],
2531 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2532 [use config/NAME.mk build configuration])],
2533 [case $with_build_config in
2534 yes) with_build_config= ;;
2535 no) with_build_config= BUILD_CONFIG= ;;
2536 esac])
2538 if test "x${with_build_config}" != x; then
2539 BUILD_CONFIG=$with_build_config
2540 else
2541 case $BUILD_CONFIG in
2542 bootstrap-debug)
2543 if echo "int f (void) { return 0; }" > conftest.c &&
2544 ${CC} -c conftest.c &&
2545 mv conftest.o conftest.o.g0 &&
2546 ${CC} -c -g conftest.c &&
2547 mv conftest.o conftest.o.g &&
2548 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2549 :
2550 else
2551 BUILD_CONFIG=
2552 fi
2553 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2554 ;;
2555 esac
2556 fi
2557 AC_MSG_RESULT($BUILD_CONFIG)
2558 AC_SUBST(BUILD_CONFIG)
2560 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2561 AC_MSG_CHECKING([for --enable-vtable-verify])
2562 AC_ARG_ENABLE(vtable-verify,
2563 [ --enable-vtable-verify Enable vtable verification feature ],
2564 [case "$enableval" in
2565 yes) enable_vtable_verify=yes ;;
2566 no) enable_vtable_verify=no ;;
2567 *) enable_vtable_verify=no;;
2568 esac],
2569 [enable_vtable_verify=no])
2570 AC_MSG_RESULT($enable_vtable_verify)
2572 # Record target_configdirs and the configure arguments for target and
2573 # build configuration in Makefile.
2574 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2575 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2576 bootstrap_fixincludes=no
2578 # If we are building libgomp, bootstrap it.
2579 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2580 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2581 fi
2583 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2584 # or bootstrap-ubsan, bootstrap it.
2585 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2586 case "$BUILD_CONFIG" in
2587 *bootstrap-asan* | *bootstrap-ubsan* )
2588 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2589 bootstrap_fixincludes=yes
2590 ;;
2591 esac
2592 fi
2594 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2595 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2596 test "$enable_vtable_verify" != no; then
2597 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2598 fi
2600 # Determine whether gdb needs tk/tcl or not.
2601 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2602 # and in that case we want gdb to be built without tk. Ugh!
2603 # In fact I believe gdb is the *only* package directly dependent on tk,
2604 # so we should be able to put the 'maybe's in unconditionally and
2605 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2606 # 100% sure that that's safe though.
2608 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2609 case "$enable_gdbtk" in
2610 no)
2611 GDB_TK="" ;;
2612 yes)
2613 GDB_TK="${gdb_tk}" ;;
2614 *)
2615 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2616 # distro. Eventually someone will fix this and move Insight, nee
2617 # gdbtk to a separate directory.
2618 if test -d ${srcdir}/gdb/gdbtk ; then
2619 GDB_TK="${gdb_tk}"
2620 else
2621 GDB_TK=""
2622 fi
2623 ;;
2624 esac
2625 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2626 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2628 # Strip out unwanted targets.
2630 # While at that, we remove Makefiles if we were started for recursive
2631 # configuration, so that the top-level Makefile reconfigures them,
2632 # like we used to do when configure itself was recursive.
2634 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2635 # but now we're fixing up the Makefile ourselves with the additional
2636 # commands passed to AC_CONFIG_FILES. Use separate variables
2637 # extrasub-{build,host,target} not because there is any reason to split
2638 # the substitutions up that way, but only to remain below the limit of
2639 # 99 commands in a script, for HP-UX sed.
2640 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2642 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2643 yes:yes:*\ gold\ *:*,c++,*) ;;
2644 yes:yes:*\ gold\ *:*)
2645 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2646 ;;
2647 esac
2649 extrasub_build=
2650 for module in ${build_configdirs} ; do
2651 if test -z "${no_recursion}" \
2652 && test -f ${build_subdir}/${module}/Makefile; then
2653 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2654 rm -f ${build_subdir}/${module}/Makefile
2655 fi
2656 extrasub_build="$extrasub_build
2657 /^@if build-$module\$/d
2658 /^@endif build-$module\$/d
2659 /^@if build-$module-$bootstrap_suffix\$/d
2660 /^@endif build-$module-$bootstrap_suffix\$/d"
2661 done
2662 extrasub_host=
2663 for module in ${configdirs} ; do
2664 if test -z "${no_recursion}"; then
2665 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2666 if test -f ${file}; then
2667 echo 1>&2 "*** removing ${file} to force reconfigure"
2668 rm -f ${file}
2669 fi
2670 done
2671 fi
2672 case ${module},${bootstrap_fixincludes} in
2673 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2674 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2675 esac
2676 extrasub_host="$extrasub_host
2677 /^@if $module\$/d
2678 /^@endif $module\$/d
2679 /^@if $module-$host_bootstrap_suffix\$/d
2680 /^@endif $module-$host_bootstrap_suffix\$/d"
2681 done
2682 extrasub_target=
2683 for module in ${target_configdirs} ; do
2684 if test -z "${no_recursion}" \
2685 && test -f ${target_subdir}/${module}/Makefile; then
2686 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2687 rm -f ${target_subdir}/${module}/Makefile
2688 fi
2690 # We only bootstrap target libraries listed in bootstrap_target_libs.
2691 case $bootstrap_target_libs in
2692 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2693 *) target_bootstrap_suffix=no-bootstrap ;;
2694 esac
2696 extrasub_target="$extrasub_target
2697 /^@if target-$module\$/d
2698 /^@endif target-$module\$/d
2699 /^@if target-$module-$target_bootstrap_suffix\$/d
2700 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2701 done
2703 # Do the final fixup along with target modules.
2704 extrasub_target="$extrasub_target
2705 /^@if /,/^@endif /d"
2707 # Create the serialization dependencies. This uses a temporary file.
2709 AC_ARG_ENABLE([serial-configure],
2710 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2711 [force sequential configuration of
2712 sub-packages for the host, target or build
2713 machine, or all sub-packages])])
2715 case ${enable_serial_configure} in
2716 yes)
2717 enable_serial_build_configure=yes
2718 enable_serial_host_configure=yes
2719 enable_serial_target_configure=yes
2720 ;;
2721 esac
2723 # These force 'configure's to be done one at a time, to avoid problems
2724 # with contention over a shared config.cache.
2725 rm -f serdep.tmp
2726 echo '# serdep.tmp' > serdep.tmp
2727 olditem=
2728 test "x${enable_serial_build_configure}" = xyes &&
2729 for item in ${build_configdirs} ; do
2730 case ${olditem} in
2731 "") ;;
2732 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2733 esac
2734 olditem=${item}
2735 done
2736 olditem=
2737 test "x${enable_serial_host_configure}" = xyes &&
2738 for item in ${configdirs} ; do
2739 case ${olditem} in
2740 "") ;;
2741 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2742 esac
2743 olditem=${item}
2744 done
2745 olditem=
2746 test "x${enable_serial_target_configure}" = xyes &&
2747 for item in ${target_configdirs} ; do
2748 case ${olditem} in
2749 "") ;;
2750 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2751 esac
2752 olditem=${item}
2753 done
2754 serialization_dependencies=serdep.tmp
2755 AC_SUBST_FILE(serialization_dependencies)
2757 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2758 # target, nonopt, and variable assignments. These are the ones we
2759 # might not want to pass down to subconfigures. The exception being
2760 # --cache-file=/dev/null, which is used to turn off the use of cache
2761 # files altogether, and which should be passed on to subconfigures.
2762 # Also strip program-prefix, program-suffix, and program-transform-name,
2763 # so that we can pass down a consistent program-transform-name.
2764 baseargs=
2765 tbaseargs=
2766 keep_next=no
2767 skip_next=no
2768 eval "set -- $ac_configure_args"
2769 for ac_arg
2770 do
2771 if test X"$skip_next" = X"yes"; then
2772 skip_next=no
2773 continue
2774 fi
2775 if test X"$keep_next" = X"yes"; then
2776 case $ac_arg in
2777 *\'*)
2778 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2779 esac
2780 baseargs="$baseargs '$ac_arg'"
2781 tbaseargs="$tbaseargs '$ac_arg'"
2782 keep_next=no
2783 continue
2784 fi
2786 # Handle separated arguments. Based on the logic generated by
2787 # autoconf 2.59.
2788 case $ac_arg in
2789 *=* | --config-cache | -C | -disable-* | --disable-* \
2790 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2791 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2792 | -with-* | --with-* | -without-* | --without-* | --x)
2793 separate_arg=no
2794 ;;
2795 -*)
2796 separate_arg=yes
2797 ;;
2798 *)
2799 separate_arg=no
2800 ;;
2801 esac
2803 skip_targ=no
2804 case $ac_arg in
2805 changequote(,)
2806 --with-* | --without-*)
2807 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2809 case $libopt in
2810 *[-_]include)
2811 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2812 ;;
2813 *[-_]lib)
2814 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2815 ;;
2816 *)
2817 lib=$libopt
2818 ;;
2819 esac
2820 changequote([,])
2822 case $lib in
2823 mpc | mpfr | gmp | cloog)
2824 # If we're processing --with-$lib, --with-$lib-include or
2825 # --with-$lib-lib, for one of the libs above, and target is
2826 # different from host, don't pass the current argument to any
2827 # target library's configure.
2828 if test x$is_cross_compiler = xyes; then
2829 skip_targ=yes
2830 fi
2831 ;;
2832 esac
2833 ;;
2834 esac
2836 case "$ac_arg" in
2837 --cache-file=/dev/null | \
2838 -cache-file=/dev/null )
2839 # Handled here to avoid the test to skip args below.
2840 baseargs="$baseargs '$ac_arg'"
2841 tbaseargs="$tbaseargs '$ac_arg'"
2842 # Assert: $separate_arg should always be no.
2843 keep_next=$separate_arg
2844 ;;
2845 --no*)
2846 continue
2847 ;;
2848 --c* | \
2849 --sr* | \
2850 --ho* | \
2851 --bu* | \
2852 --t* | \
2853 --program-* | \
2854 -cache_file* | \
2855 -srcdir* | \
2856 -host* | \
2857 -build* | \
2858 -target* | \
2859 -program-prefix* | \
2860 -program-suffix* | \
2861 -program-transform-name* )
2862 skip_next=$separate_arg
2863 continue
2864 ;;
2865 -*)
2866 # An option. Add it.
2867 case $ac_arg in
2868 *\'*)
2869 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2870 esac
2871 baseargs="$baseargs '$ac_arg'"
2872 if test X"$skip_targ" = Xno; then
2873 tbaseargs="$tbaseargs '$ac_arg'"
2874 fi
2875 keep_next=$separate_arg
2876 ;;
2877 *)
2878 # Either a variable assignment, or a nonopt (triplet). Don't
2879 # pass it down; let the Makefile handle this.
2880 continue
2881 ;;
2882 esac
2883 done
2884 # Remove the initial space we just introduced and, as these will be
2885 # expanded by make, quote '$'.
2886 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2888 # Add in --program-transform-name, after --program-prefix and
2889 # --program-suffix have been applied to it. Autoconf has already
2890 # doubled dollar signs and backslashes in program_transform_name; we want
2891 # the backslashes un-doubled, and then the entire thing wrapped in single
2892 # quotes, because this will be expanded first by make and then by the shell.
2893 # Also, because we want to override the logic in subdir configure scripts to
2894 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2895 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2896 ${program_transform_name}
2897 EOF_SED
2898 gcc_transform_name=`cat conftestsed.out`
2899 rm -f conftestsed.out
2900 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2901 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
2902 if test "$silent" = yes; then
2903 baseargs="$baseargs --silent"
2904 tbaseargs="$tbaseargs --silent"
2905 fi
2906 baseargs="$baseargs --disable-option-checking"
2907 tbaseargs="$tbaseargs --disable-option-checking"
2909 # Record and document user additions to sub configure arguments.
2910 AC_ARG_VAR([build_configargs],
2911 [additional configure arguments for build directories])
2912 AC_ARG_VAR([host_configargs],
2913 [additional configure arguments for host directories])
2914 AC_ARG_VAR([target_configargs],
2915 [additional configure arguments for target directories])
2917 # For the build-side libraries, we just need to pretend we're native,
2918 # and not use the same cache file. Multilibs are neither needed nor
2919 # desired.
2920 build_configargs="$build_configargs --cache-file=../config.cache ${baseargs}"
2922 # For host modules, accept cache file option, or specification as blank.
2923 case "${cache_file}" in
2924 "") # empty
2925 cache_file_option="" ;;
2926 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2927 cache_file_option="--cache-file=${cache_file}" ;;
2928 *) # relative path
2929 cache_file_option="--cache-file=../${cache_file}" ;;
2930 esac
2932 # Host dirs don't like to share a cache file either, horribly enough.
2933 # This seems to be due to autoconf 2.5x stupidity.
2934 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
2936 target_configargs="$target_configargs ${tbaseargs}"
2938 # Passing a --with-cross-host argument lets the target libraries know
2939 # whether they are being built with a cross-compiler or being built
2940 # native. However, it would be better to use other mechanisms to make the
2941 # sorts of decisions they want to make on this basis. Please consider
2942 # this option to be deprecated. FIXME.
2943 if test x${is_cross_compiler} = xyes ; then
2944 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
2945 fi
2947 # Special user-friendly check for native x86_64-linux build, if
2948 # multilib is not explicitly enabled.
2949 case "$target:$have_compiler:$host:$target:$enable_multilib" in
2950 x86_64-*linux*:yes:$build:$build:)
2951 # Make sure we have a developement environment that handles 32-bit
2952 dev64=no
2953 echo "int main () { return 0; }" > conftest.c
2954 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2955 if test $? = 0 ; then
2956 if test -s conftest || test -s conftest.exe ; then
2957 dev64=yes
2958 fi
2959 fi
2960 rm -f conftest*
2961 if test x${dev64} != xyes ; then
2962 AC_MSG_ERROR([I suspect your system does not have 32-bit developement libraries (libc and headers). If you have them, rerun configure with --enable-multilib. If you do not have them, and want to build a 64-bit-only compiler, rerun configure with --disable-multilib.])
2963 fi
2964 ;;
2965 esac
2967 # Default to --enable-multilib.
2968 if test x${enable_multilib} = x ; then
2969 target_configargs="--enable-multilib ${target_configargs}"
2970 fi
2972 # Pass --with-newlib if appropriate. Note that target_configdirs has
2973 # changed from the earlier setting of with_newlib.
2974 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2975 target_configargs="--with-newlib ${target_configargs}"
2976 fi
2978 # Different target subdirs use different values of certain variables
2979 # (notably CXX). Worse, multilibs use *lots* of different values.
2980 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2981 # it doesn't automatically accept command-line overrides of them.
2982 # This means it's not safe for target subdirs to share a cache file,
2983 # which is disgusting, but there you have it. Hopefully this can be
2984 # fixed in future. It's still worthwhile to use a cache file for each
2985 # directory. I think.
2987 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2988 # We need to pass --target, as newer autoconf's requires consistency
2989 # for target_alias and gcc doesn't manage it consistently.
2990 target_configargs="--cache-file=./config.cache ${target_configargs}"
2992 FLAGS_FOR_TARGET=
2993 case " $target_configdirs " in
2994 *" newlib "*)
2995 case " $target_configargs " in
2996 *" --with-newlib "*)
2997 case "$target" in
2998 *-cygwin*)
2999 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3000 ;;
3001 esac
3003 # If we're not building GCC, don't discard standard headers.
3004 if test -d ${srcdir}/gcc; then
3005 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3007 if test "${build}" != "${host}"; then
3008 # On Canadian crosses, CC_FOR_TARGET will have already been set
3009 # by `configure', so we won't have an opportunity to add -Bgcc/
3010 # to it. This is right: we don't want to search that directory
3011 # for binaries, but we want the header files in there, so add
3012 # them explicitly.
3013 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3015 # Someone might think of using the pre-installed headers on
3016 # Canadian crosses, in case the installed compiler is not fully
3017 # compatible with the compiler being built. In this case, it
3018 # would be better to flag an error than risking having
3019 # incompatible object files being constructed. We can't
3020 # guarantee that an error will be flagged, but let's hope the
3021 # compiler will do it, when presented with incompatible header
3022 # files.
3023 fi
3024 fi
3026 case "${target}-${is_cross_compiler}" in
3027 i[[3456789]]86-*-linux*-no)
3028 # Here host == target, so we don't need to build gcc,
3029 # so we don't want to discard standard headers.
3030 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3031 ;;
3032 *)
3033 # If we're building newlib, use its generic headers last, but search
3034 # for any libc-related directories first (so make it the last -B
3035 # switch).
3036 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3038 # If we're building libgloss, find the startup file, simulator library
3039 # and linker script.
3040 case " $target_configdirs " in
3041 *" libgloss "*)
3042 # Look for startup file, simulator library and maybe linker script.
3043 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3044 # Look for libnosys.a in case the target needs it.
3045 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3046 # Most targets have the linker script in the source directory.
3047 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3048 ;;
3049 esac
3050 ;;
3051 esac
3052 ;;
3053 esac
3054 ;;
3055 esac
3057 case "$target" in
3058 x86_64-*mingw* | *-w64-mingw*)
3059 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3060 # however, use a symlink named 'mingw' in ${prefix} .
3061 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3062 ;;
3063 *-mingw*)
3064 # MinGW can't be handled as Cygwin above since it does not use newlib.
3065 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3066 ;;
3067 esac
3069 # Allow the user to override the flags for
3070 # our build compiler if desired.
3071 if test x"${build}" = x"${host}" ; then
3072 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3073 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3074 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3075 fi
3077 # On Canadian crosses, we'll be searching the right directories for
3078 # the previously-installed cross compiler, so don't bother to add
3079 # flags for directories within the install tree of the compiler
3080 # being built; programs in there won't even run.
3081 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3082 # Search for pre-installed headers if nothing else fits.
3083 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3084 fi
3086 if test "x${use_gnu_ld}" = x &&
3087 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3088 # Arrange for us to find uninstalled linker scripts.
3089 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3090 fi
3092 # Search for other target-specific linker scripts and such.
3093 case "${target}" in
3094 mep*)
3095 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3096 ;;
3097 esac
3099 # Makefile fragments.
3100 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3101 do
3102 eval fragval=\$$frag
3103 if test $fragval != /dev/null; then
3104 eval $frag=${srcdir}/$fragval
3105 fi
3106 done
3107 AC_SUBST_FILE(host_makefile_frag)
3108 AC_SUBST_FILE(target_makefile_frag)
3109 AC_SUBST_FILE(alphaieee_frag)
3110 AC_SUBST_FILE(ospace_frag)
3112 # Miscellanea: directories, flags, etc.
3113 AC_SUBST(RPATH_ENVVAR)
3114 AC_SUBST(GCC_SHLIB_SUBDIR)
3115 AC_SUBST(tooldir)
3116 AC_SUBST(build_tooldir)
3117 AC_SUBST(CONFIGURE_GDB_TK)
3118 AC_SUBST(GDB_TK)
3119 AC_SUBST(INSTALL_GDB_TK)
3121 # Build module lists & subconfigure args.
3122 AC_SUBST(build_configargs)
3123 AC_SUBST(build_configdirs)
3125 # Host module lists & subconfigure args.
3126 AC_SUBST(host_configargs)
3127 AC_SUBST(configdirs)
3128 AC_SUBST(target_configdirs)
3130 # Target module lists & subconfigure args.
3131 AC_SUBST(target_configargs)
3134 # Build tools.
3135 AC_SUBST(AR_FOR_BUILD)
3136 AC_SUBST(AS_FOR_BUILD)
3137 AC_SUBST(CC_FOR_BUILD)
3138 AC_SUBST(CFLAGS_FOR_BUILD)
3139 AC_SUBST(CXXFLAGS_FOR_BUILD)
3140 AC_SUBST(CXX_FOR_BUILD)
3141 AC_SUBST(DLLTOOL_FOR_BUILD)
3142 AC_SUBST(GCJ_FOR_BUILD)
3143 AC_SUBST(GFORTRAN_FOR_BUILD)
3144 AC_SUBST(GOC_FOR_BUILD)
3145 AC_SUBST(LDFLAGS_FOR_BUILD)
3146 AC_SUBST(LD_FOR_BUILD)
3147 AC_SUBST(NM_FOR_BUILD)
3148 AC_SUBST(RANLIB_FOR_BUILD)
3149 AC_SUBST(WINDMC_FOR_BUILD)
3150 AC_SUBST(WINDRES_FOR_BUILD)
3152 # Generate default definitions for YACC, M4, LEX and other programs that run
3153 # on the build machine. These are used if the Makefile can't locate these
3154 # programs in objdir.
3155 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3157 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3158 case " $build_configdirs " in
3159 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3160 esac
3162 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3163 case " $build_configdirs " in
3164 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3165 esac
3167 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3168 case " $build_configdirs " in
3169 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3170 esac
3172 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3173 case " $build_configdirs " in
3174 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3175 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3176 esac
3178 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3179 case " $build_configdirs " in
3180 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3181 esac
3183 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3184 case " $build_configdirs " in
3185 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3186 *)
3187 changequote(,)
3188 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3189 # higher, else we use the "missing" dummy.
3190 if ${MAKEINFO} --version \
3191 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3192 :
3193 else
3194 MAKEINFO="$MISSING makeinfo"
3195 fi
3196 ;;
3197 changequote([,])
3198 esac
3200 # FIXME: expect and dejagnu may become build tools?
3202 AC_CHECK_PROGS(EXPECT, expect, expect)
3203 case " $configdirs " in
3204 *" expect "*)
3205 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3206 ;;
3207 esac
3209 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3210 case " $configdirs " in
3211 *" dejagnu "*)
3212 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3213 ;;
3214 esac
3216 # Host tools.
3217 NCN_STRICT_CHECK_TOOLS(AR, ar)
3218 NCN_STRICT_CHECK_TOOLS(AS, as)
3219 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3220 NCN_STRICT_CHECK_TOOLS(LD, ld)
3221 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3222 NCN_STRICT_CHECK_TOOLS(NM, nm)
3223 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3224 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3225 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3226 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3227 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3228 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3229 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3230 AC_SUBST(CC)
3231 AC_SUBST(CXX)
3232 AC_SUBST(CFLAGS)
3233 AC_SUBST(CXXFLAGS)
3235 # Target tools.
3236 AC_ARG_WITH([build-time-tools],
3237 [AS_HELP_STRING([--with-build-time-tools=PATH],
3238 [use given path to find target tools during the build])],
3239 [case x"$withval" in
3240 x/*) ;;
3241 *)
3242 with_build_time_tools=
3243 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3244 ;;
3245 esac],
3246 [with_build_time_tools=])
3248 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3249 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3250 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3251 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
3252 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3253 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3255 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3256 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3257 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3258 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3259 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3260 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3261 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3262 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3263 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3264 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3265 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3266 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3268 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3270 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3271 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3272 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3273 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3274 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3275 [gcc/xg++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `if test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags; then $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3276 c++)
3277 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3278 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3279 c++)
3280 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3281 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3282 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
3283 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
3284 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3285 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3286 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3287 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3288 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3289 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3290 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3291 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3292 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3293 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3294 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3295 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3296 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3298 AC_SUBST(FLAGS_FOR_TARGET)
3299 AC_SUBST(RAW_CXX_FOR_TARGET)
3301 # Certain tools may need extra flags.
3302 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3303 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3304 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3306 # When building target libraries, except in a Canadian cross, we use
3307 # the same toolchain as the compiler we just built.
3308 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3309 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3310 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3311 if test $host = $build; then
3312 case " $configdirs " in
3313 *" gcc "*)
3314 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3315 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3316 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3317 ;;
3318 esac
3319 fi
3321 AC_SUBST(COMPILER_AS_FOR_TARGET)
3322 AC_SUBST(COMPILER_LD_FOR_TARGET)
3323 AC_SUBST(COMPILER_NM_FOR_TARGET)
3325 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3326 AC_ARG_ENABLE(maintainer-mode,
3327 [AS_HELP_STRING([--enable-maintainer-mode],
3328 [enable make rules and dependencies not useful
3329 (and sometimes confusing) to the casual installer])],
3330 USE_MAINTAINER_MODE=$enableval,
3331 USE_MAINTAINER_MODE=no)
3332 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3333 AC_SUBST(MAINTAINER_MODE_TRUE)
3334 AC_SUBST(MAINTAINER_MODE_FALSE)
3335 if test "$USE_MAINTAINER_MODE" = yes; then
3336 MAINTAINER_MODE_TRUE=
3337 MAINTAINER_MODE_FALSE='#'
3338 else
3339 MAINTAINER_MODE_TRUE='#'
3340 MAINTAINER_MODE_FALSE=
3341 fi
3342 MAINT=$MAINTAINER_MODE_TRUE
3343 AC_SUBST(MAINT)dnl
3345 # ---------------------
3346 # GCC bootstrap support
3347 # ---------------------
3349 # Stage specific cflags for build.
3350 stage1_cflags="-g"
3351 case $build in
3352 vax-*-*)
3353 case ${GCC} in
3354 yes) stage1_cflags="-g -Wa,-J" ;;
3355 *) stage1_cflags="-g -J" ;;
3356 esac ;;
3357 esac
3359 AC_SUBST(stage1_cflags)
3361 # Enable --enable-checking in stage1 of the compiler.
3362 AC_ARG_ENABLE(stage1-checking,
3363 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3364 [choose additional checking for stage1 of the compiler])],
3365 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3366 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3367 stage1_checking=--enable-checking=yes,types
3368 else
3369 stage1_checking=--enable-checking=$enable_checking,types
3370 fi])
3371 AC_SUBST(stage1_checking)
3373 # Enable -Werror in bootstrap stage2 and later.
3374 AC_ARG_ENABLE(werror,
3375 [AS_HELP_STRING([--enable-werror],
3376 [enable -Werror in bootstrap stage2 and later])], [],
3377 [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3378 enable_werror=yes
3379 else
3380 enable_werror=no
3381 fi])
3382 case ${enable_werror} in
3383 yes) stage2_werror_flag="--enable-werror-always" ;;
3384 *) stage2_werror_flag="" ;;
3385 esac
3386 AC_SUBST(stage2_werror_flag)
3388 # Enable --enable-host-shared.
3389 AC_ARG_ENABLE(host-shared,
3390 [AS_HELP_STRING([--enable-host-shared],
3391 [build host code as shared libraries])],
3392 [host_shared=$enableval], [host_shared=no])
3393 AC_SUBST(host_shared)
3395 # Specify what files to not compare during bootstrap.
3397 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3398 case "$target" in
3399 hppa*64*-*-hpux*) ;;
3400 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
3401 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3402 esac
3403 AC_SUBST(compare_exclusions)
3405 AC_CONFIG_FILES([Makefile],
3406 [sed "$extrasub_build" Makefile |
3407 sed "$extrasub_host" |
3408 sed "$extrasub_target" > mf$$
3409 mv -f mf$$ Makefile],
3410 [extrasub_build="$extrasub_build"
3411 extrasub_host="$extrasub_host"
3412 extrasub_target="$extrasub_target"])
3413 AC_OUTPUT