| blob | b1ef069b1db2db98271767b9c481937e12e2b9af |
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, 2014
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 build-libcpp"
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 #f
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 gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1"
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-gold, --enable-ld.
290 # --disable-gold [--enable-ld]
291 # Build only ld. Default option.
292 # --enable-gold [--enable-ld]
293 # Build both gold and ld. Install gold as "ld.gold", install ld
294 # as "ld.bfd" and "ld".
295 # --enable-gold=default [--enable-ld]
296 # Build both gold and ld. Install gold as "ld.gold" and "ld",
297 # install ld as "ld.bfd".
298 # --enable-gold[=default] --disable-ld
299 # Build only gold, which is then installed as both "ld.gold" and "ld".
300 # --enable-gold --enable-ld=default
301 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
302 # and ld.bfd).
303 # In other words, ld is default
304 # --enable-gold=default --enable-ld=default
305 # Error.
307 default_ld=
308 AC_ARG_ENABLE(gold,
309 [AS_HELP_STRING([[--enable-gold[=ARG]]],
310 [build gold @<:@ARG={default,yes,no}@:>@])],
311 ENABLE_GOLD=$enableval,
312 ENABLE_GOLD=no)
313 case "${ENABLE_GOLD}" in
314 yes|default)
315 # Check for ELF target.
316 is_elf=no
317 case "${target}" in
318 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
319 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
320 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
321 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
322 case "${target}" in
323 *-*-linux*aout* | *-*-linux*oldld*)
324 ;;
325 *)
326 is_elf=yes
327 ;;
328 esac
329 esac
331 if test "$is_elf" = "yes"; then
332 # Check for target supported by gold.
333 case "${target}" in
334 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
335 | aarch64*-*-* | tilegx*-*-*)
336 configdirs="$configdirs gold"
337 if test x${ENABLE_GOLD} = xdefault; then
338 default_ld=gold
339 fi
340 ENABLE_GOLD=yes
341 ;;
342 esac
343 fi
344 ;;
345 no)
346 ;;
347 *)
348 AC_MSG_ERROR([invalid --enable-gold argument])
349 ;;
350 esac
352 AC_ARG_ENABLE(ld,
353 [AS_HELP_STRING([[--enable-ld[=ARG]]],
354 [build ld @<:@ARG={default,yes,no}@:>@])],
355 ENABLE_LD=$enableval,
356 ENABLE_LD=yes)
358 case "${ENABLE_LD}" in
359 default)
360 if test x${default_ld} != x; then
361 AC_MSG_ERROR([either gold or ld can be the default ld])
362 fi
363 ;;
364 yes)
365 ;;
366 no)
367 if test x${ENABLE_GOLD} != xyes; then
368 AC_MSG_WARN([neither ld nor gold are enabled])
369 fi
370 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
371 ;;
372 *)
373 AC_MSG_ERROR([invalid --enable-ld argument])
374 ;;
375 esac
377 # Configure extra directories which are host specific
379 case "${host}" in
380 *-cygwin*)
381 configdirs="$configdirs libtermcap" ;;
382 esac
384 # A target can indicate whether a language isn't supported for some reason.
385 # Only spaces may be used in this macro; not newlines or tabs.
386 unsupported_languages=
388 # Remove more programs from consideration, based on the host or
389 # target this usually means that a port of the program doesn't
390 # exist yet.
392 case "${host}" in
393 i[[3456789]]86-*-msdosdjgpp*)
394 noconfigdirs="$noconfigdirs tcl tk itcl"
395 ;;
396 esac
399 AC_ARG_ENABLE(libquadmath,
400 AS_HELP_STRING([--disable-libquadmath],
401 [do not build libquadmath directory]),
402 ENABLE_LIBQUADMATH=$enableval,
403 ENABLE_LIBQUADMATH=yes)
404 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
405 noconfigdirs="$noconfigdirs target-libquadmath"
406 fi
409 AC_ARG_ENABLE(libquadmath-support,
410 AS_HELP_STRING([--disable-libquadmath-support],
411 [disable libquadmath support for Fortran]),
412 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
413 ENABLE_LIBQUADMATH_SUPPORT=yes)
414 enable_libquadmath_support=
415 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
416 enable_libquadmath_support=no
417 fi
420 AC_ARG_ENABLE(libada,
421 [AS_HELP_STRING([--enable-libada], [build libada directory])],
422 ENABLE_LIBADA=$enableval,
423 ENABLE_LIBADA=yes)
424 if test "${ENABLE_LIBADA}" != "yes" ; then
425 noconfigdirs="$noconfigdirs gnattools"
426 fi
428 AC_ARG_ENABLE(libssp,
429 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
430 ENABLE_LIBSSP=$enableval,
431 ENABLE_LIBSSP=yes)
433 AC_ARG_ENABLE(libstdcxx,
434 AS_HELP_STRING([--disable-libstdcxx],
435 [do not build libstdc++-v3 directory]),
436 ENABLE_LIBSTDCXX=$enableval,
437 ENABLE_LIBSTDCXX=default)
438 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
439 noconfigdirs="$noconfigdirs target-libstdc++-v3"
440 fi]
442 # Save it here so that, even in case of --enable-libgcj, if the Java
443 # front-end isn't enabled, we still get libgcj disabled.
444 libgcj_saved=$libgcj
445 case $enable_libgcj in
446 yes)
447 # If we reset it here, it won't get added to noconfigdirs in the
448 # target-specific build rules, so it will be forcibly enabled
449 # (unless the Java language itself isn't enabled).
450 libgcj=
451 ;;
452 no)
453 # Make sure we get it printed in the list of not supported target libs.
454 # Don't disable libffi, though, other languages use it.
455 noconfigdirs="$noconfigdirs `echo ${libgcj} | sed -e 's/target-libffi//'`"
456 # Clear libgcj_saved so that even if java is enabled libffi won't be
457 # built.
458 libgcj_saved=
459 ;;
460 esac
462 AC_ARG_ENABLE(static-libjava,
463 [AS_HELP_STRING([[--enable-static-libjava[=ARG]]],
464 [build static libjava @<:@default=no@:>@])],
465 ENABLE_STATIC_LIBJAVA=$enableval,
466 ENABLE_STATIC_LIBJAVA=no)
467 enable_static_libjava=
468 if test "${ENABLE_STATIC_LIBJAVA}" = "yes" ; then
469 enable_static_libjava=yes
470 fi
472 if test x$enable_static_libjava != xyes ; then
473 EXTRA_CONFIGARGS_LIBJAVA=--disable-static
474 fi
475 AC_SUBST(EXTRA_CONFIGARGS_LIBJAVA)
477 # Disable libgomp on non POSIX hosted systems.
478 if test x$enable_libgomp = x ; then
479 # Enable libgomp by default on hosted POSIX systems.
480 case "${target}" in
481 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
482 ;;
483 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
484 ;;
485 *-*-solaris2* | *-*-hpux11*)
486 ;;
487 *-*-darwin* | *-*-aix*)
488 ;;
489 *)
490 noconfigdirs="$noconfigdirs target-libgomp"
491 ;;
492 esac
493 fi
495 # Disable libatomic on unsupported systems.
496 if test -d ${srcdir}/libatomic; then
497 if test x$enable_libatomic = x; then
498 AC_MSG_CHECKING([for libatomic support])
499 if (srcdir=${srcdir}/libatomic; \
500 . ${srcdir}/configure.tgt; \
501 test -n "$UNSUPPORTED")
502 then
503 AC_MSG_RESULT([no])
504 noconfigdirs="$noconfigdirs target-libatomic"
505 else
506 AC_MSG_RESULT([yes])
507 fi
508 fi
509 fi
511 # Disable libcilkrts on unsupported systems.
512 if test -d ${srcdir}/libcilkrts; then
513 if test x$enable_libcilkrts = x; then
514 AC_MSG_CHECKING([for libcilkrts support])
515 if (srcdir=${srcdir}/libcilkrts; \
516 . ${srcdir}/configure.tgt; \
517 test -n "$UNSUPPORTED")
518 then
519 AC_MSG_RESULT([no])
520 noconfigdirs="$noconfigdirs target-libcilkrts"
521 else
522 AC_MSG_RESULT([yes])
523 fi
524 fi
525 fi
527 # Disable libitm on unsupported systems.
528 if test -d ${srcdir}/libitm; then
529 if test x$enable_libitm = x; then
530 AC_MSG_CHECKING([for libitm support])
531 if (srcdir=${srcdir}/libitm; \
532 . ${srcdir}/configure.tgt; \
533 test -n "$UNSUPPORTED")
534 then
535 AC_MSG_RESULT([no])
536 noconfigdirs="$noconfigdirs target-libitm"
537 else
538 AC_MSG_RESULT([yes])
539 fi
540 fi
541 fi
543 # Disable libsanitizer on unsupported systems.
544 if test -d ${srcdir}/libsanitizer; then
545 if test x$enable_libsanitizer = x; then
546 AC_MSG_CHECKING([for libsanitizer support])
547 if (srcdir=${srcdir}/libsanitizer; \
548 . ${srcdir}/configure.tgt; \
549 test -n "$UNSUPPORTED")
550 then
551 AC_MSG_RESULT([no])
552 noconfigdirs="$noconfigdirs target-libsanitizer"
553 else
554 AC_MSG_RESULT([yes])
555 fi
556 fi
557 fi
559 # Disable libvtv on unsupported systems.
560 if test -d ${srcdir}/libvtv; then
561 if test x$enable_libvtv = x; then
562 AC_MSG_CHECKING([for libvtv support])
563 if (srcdir=${srcdir}/libvtv; \
564 . ${srcdir}/configure.tgt; \
565 test "$VTV_SUPPORTED" != "yes")
566 then
567 AC_MSG_RESULT([no])
568 noconfigdirs="$noconfigdirs target-libvtv"
569 else
570 AC_MSG_RESULT([yes])
571 fi
572 fi
573 fi
575 # Disable libquadmath for some systems.
576 case "${target}" in
577 avr-*-*)
578 noconfigdirs="$noconfigdirs target-libquadmath"
579 ;;
580 # libquadmath is unused on AIX and libquadmath build process use of
581 # LD_LIBRARY_PATH can break AIX bootstrap.
582 powerpc-*-aix* | rs6000-*-aix*)
583 noconfigdirs="$noconfigdirs target-libquadmath"
584 ;;
585 esac
587 # Disable libssp for some systems.
588 case "${target}" in
589 avr-*-*)
590 # No hosted I/O support.
591 noconfigdirs="$noconfigdirs target-libssp"
592 ;;
593 powerpc-*-aix* | rs6000-*-aix*)
594 noconfigdirs="$noconfigdirs target-libssp"
595 ;;
596 rl78-*-*)
597 # libssp uses a misaligned load to trigger a fault, but the RL78
598 # doesn't fault for those - instead, it gives a build-time error
599 # for explicit misaligned loads.
600 noconfigdirs="$noconfigdirs target-libssp"
601 ;;
602 esac
604 # Disable libstdc++-v3 for some systems.
605 # Allow user to override this if they pass --enable-libstdc++-v3
606 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
607 case "${target}" in
608 *-*-vxworks*)
609 # VxWorks uses the Dinkumware C++ library.
610 noconfigdirs="$noconfigdirs target-libstdc++-v3"
611 ;;
612 arm*-wince-pe*)
613 # the C++ libraries don't build on top of CE's C libraries
614 noconfigdirs="$noconfigdirs target-libstdc++-v3"
615 ;;
616 avr-*-*)
617 noconfigdirs="$noconfigdirs target-libstdc++-v3"
618 ;;
619 esac
620 fi
622 # Disable Fortran for some systems.
623 case "${target}" in
624 mmix-*-*)
625 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
626 unsupported_languages="$unsupported_languages fortran"
627 ;;
628 esac
630 # Disable Java if libffi is not supported.
631 case "${target}" in
632 aarch64-*-*)
633 ;;
634 alpha*-*-*)
635 ;;
636 arm*-*-*)
637 ;;
638 cris-*-*)
639 ;;
640 frv-*-*)
641 ;;
642 hppa*-*-linux*)
643 ;;
644 hppa*-*-hpux*)
645 ;;
646 i?86-*-*)
647 ;;
648 ia64*-*-*)
649 ;;
650 m32r*-*-*)
651 ;;
652 m68k-*-*)
653 ;;
654 mips*-*-rtems*)
655 ;;
656 mips*-*-linux*)
657 ;;
658 powerpc*-*-linux*)
659 ;;
660 powerpc-*-darwin*)
661 ;;
662 powerpc-*-aix* | rs6000-*-aix*)
663 ;;
664 powerpc-*-freebsd*)
665 ;;
666 powerpc64-*-freebsd*)
667 ;;
668 powerpc*-*-rtems*)
669 ;;
670 s390-*-* | s390x-*-*)
671 ;;
672 sh-*-* | sh[[34]]*-*-*)
673 ;;
674 sh64-*-* | sh5*-*-*)
675 ;;
676 sparc*-*-*)
677 ;;
678 x86_64-*-*)
679 ;;
680 *-*-*)
681 unsupported_languages="$unsupported_languages java"
682 ;;
683 esac
685 # Disable Java, libgcj or related libraries for some systems.
686 case "${target}" in
687 powerpc-*-darwin*)
688 ;;
689 i[[3456789]]86-*-darwin*)
690 ;;
691 x86_64-*-darwin[[912]]*)
692 ;;
693 *-*-darwin*)
694 noconfigdirs="$noconfigdirs ${libgcj}"
695 ;;
696 *-*-netware*)
697 noconfigdirs="$noconfigdirs ${libgcj}"
698 ;;
699 *-*-rtems*)
700 noconfigdirs="$noconfigdirs ${libgcj}"
701 ;;
702 *-*-tpf*)
703 noconfigdirs="$noconfigdirs ${libgcj}"
704 ;;
705 *-*-uclinux*)
706 noconfigdirs="$noconfigdirs ${libgcj}"
707 ;;
708 *-*-vxworks*)
709 noconfigdirs="$noconfigdirs ${libgcj}"
710 ;;
711 alpha*-*-*vms*)
712 noconfigdirs="$noconfigdirs ${libgcj}"
713 ;;
714 arm-wince-pe)
715 noconfigdirs="$noconfigdirs ${libgcj}"
716 ;;
717 arm*-*-symbianelf*)
718 noconfigdirs="$noconfigdirs ${libgcj}"
719 ;;
720 bfin-*-*)
721 noconfigdirs="$noconfigdirs target-boehm-gc"
722 ;;
723 cris-*-* | crisv32-*-*)
724 unsupported_languages="$unsupported_languages java"
725 case "${target}" in
726 *-*-linux*)
727 ;;
728 *) # See PR46792 regarding target-libffi.
729 noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
730 esac
731 ;;
732 hppa*64*-*-linux*)
733 # In this case, it's because the hppa64-linux target is for
734 # the kernel only at this point and has no libc, and thus no
735 # headers, crt*.o, etc., all of which are needed by these.
736 unsupported_languages="$unsupported_languages java"
737 ;;
738 hppa*64*-*-hpux*)
739 noconfigdirs="$noconfigdirs ${libgcj}"
740 ;;
741 hppa*-hp-hpux11*)
742 ;;
743 hppa*-*-hpux*)
744 # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
745 # build on HP-UX 10.20.
746 noconfigdirs="$noconfigdirs ${libgcj}"
747 ;;
748 ia64*-*-*vms*)
749 noconfigdirs="$noconfigdirs ${libgcj}"
750 ;;
751 i[[3456789]]86-w64-mingw*)
752 noconfigdirs="$noconfigdirs ${libgcj}"
753 ;;
754 i[[3456789]]86-*-mingw*)
755 noconfigdirs="$noconfigdirs ${libgcj}"
756 ;;
757 x86_64-*-mingw*)
758 noconfigdirs="$noconfigdirs ${libgcj}"
759 ;;
760 mmix-*-*)
761 noconfigdirs="$noconfigdirs target-libffi target-boehm-gc"
762 ;;
763 powerpc-*-aix*)
764 # copied from rs6000-*-* entry
765 noconfigdirs="$noconfigdirs ${libgcj}"
766 ;;
767 rs6000-*-aix*)
768 noconfigdirs="$noconfigdirs ${libgcj}"
769 ;;
770 *-*-lynxos*)
771 noconfigdirs="$noconfigdirs ${libgcj}"
772 ;;
773 esac
775 # Disable the go frontend on systems where it is known to not work. Please keep
776 # this in sync with contrib/config-list.mk.
777 case "${target}" in
778 *-*-darwin* | *-*-cygwin* | *-*-mingw* | *-*-aix*)
779 unsupported_languages="$unsupported_languages go"
780 ;;
781 esac
783 # Disable libgo for some systems where it is known to not work.
784 # For testing, you can easily override this with --enable-libgo.
785 if test x$enable_libgo = x; then
786 case "${target}" in
787 *-*-darwin*)
788 # PR 46986
789 noconfigdirs="$noconfigdirs target-libgo"
790 ;;
791 *-*-cygwin* | *-*-mingw*)
792 noconfigdirs="$noconfigdirs target-libgo"
793 ;;
794 *-*-aix*)
795 noconfigdirs="$noconfigdirs target-libgo"
796 ;;
797 esac
798 fi
800 # Default libgloss CPU subdirectory.
801 libgloss_dir="$target_cpu"
803 case "${target}" in
804 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
805 libgloss_dir=wince
806 ;;
807 aarch64*-*-* )
808 libgloss_dir=aarch64
809 ;;
810 arm*-*-*)
811 libgloss_dir=arm
812 ;;
813 cris-*-* | crisv32-*-*)
814 libgloss_dir=cris
815 ;;
816 hppa*-*-*)
817 libgloss_dir=pa
818 ;;
819 i[[3456789]]86-*-*)
820 libgloss_dir=i386
821 ;;
822 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
823 libgloss_dir=m68hc11
824 ;;
825 m68*-*-* | fido-*-*)
826 libgloss_dir=m68k
827 ;;
828 mips*-*-*)
829 libgloss_dir=mips
830 ;;
831 powerpc*-*-*)
832 libgloss_dir=rs6000
833 ;;
834 sparc*-*-*)
835 libgloss_dir=sparc
836 ;;
837 esac
839 # Disable newlib and libgloss for various target OSes.
840 case "${target}" in
841 alpha*-dec-osf*)
842 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
843 ;;
844 i[[3456789]]86-*-linux*)
845 # This section makes it possible to build newlib natively on linux.
846 # If we are using a cross compiler then don't configure newlib.
847 if test x${is_cross_compiler} != xno ; then
848 noconfigdirs="$noconfigdirs target-newlib"
849 fi
850 noconfigdirs="$noconfigdirs target-libgloss"
851 # If we are not using a cross compiler, do configure newlib.
852 # Note however, that newlib will only be configured in this situation
853 # if the --with-newlib option has been given, because otherwise
854 # 'target-newlib' will appear in skipdirs.
855 ;;
856 i[[3456789]]86-*-rdos*)
857 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
858 ;;
859 sh*-*-pe|mips*-*-pe|arm-wince-pe)
860 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
861 ;;
862 sparc-*-sunos4*)
863 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
864 ;;
865 *-*-aix*)
866 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
867 ;;
868 *-*-beos*)
869 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
870 ;;
871 *-*-chorusos)
872 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
873 ;;
874 *-*-dragonfly*)
875 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
876 ;;
877 *-*-freebsd*)
878 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
879 ;;
880 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
881 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
882 ;;
883 *-*-lynxos*)
884 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
885 ;;
886 *-*-mingw*)
887 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
888 ;;
889 *-*-netbsd*)
890 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
891 ;;
892 *-*-netware*)
893 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
894 ;;
895 *-*-tpf*)
896 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
897 ;;
898 *-*-uclinux*)
899 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
900 ;;
901 *-*-vxworks*)
902 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
903 ;;
904 esac
906 case "${target}" in
907 *-*-chorusos)
908 ;;
909 powerpc-*-darwin*)
910 noconfigdirs="$noconfigdirs ld gas gdb gprof"
911 noconfigdirs="$noconfigdirs sim target-rda"
912 ;;
913 i[[3456789]]86-*-darwin*)
914 noconfigdirs="$noconfigdirs ld gprof"
915 noconfigdirs="$noconfigdirs sim target-rda"
916 ;;
917 x86_64-*-darwin[[912]]*)
918 noconfigdirs="$noconfigdirs ld gas gprof"
919 noconfigdirs="$noconfigdirs sim target-rda"
920 ;;
921 *-*-darwin*)
922 noconfigdirs="$noconfigdirs ld gas gdb gprof"
923 noconfigdirs="$noconfigdirs sim target-rda"
924 ;;
925 *-*-dragonfly*)
926 ;;
927 *-*-freebsd*)
928 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
929 && test -f /usr/local/include/gmp.h; then
930 with_gmp=/usr/local
931 fi
932 ;;
933 *-*-kaos*)
934 # Remove unsupported stuff on all kaOS configurations.
935 noconfigdirs="$noconfigdirs target-libgloss"
936 ;;
937 *-*-netbsd*)
938 ;;
939 *-*-netware*)
940 ;;
941 *-*-rtems*)
942 noconfigdirs="$noconfigdirs target-libgloss"
943 ;;
944 # The tpf target doesn't support gdb yet.
945 *-*-tpf*)
946 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
947 ;;
948 *-*-uclinux*)
949 noconfigdirs="$noconfigdirs target-rda"
950 ;;
951 *-*-vxworks*)
952 ;;
953 alpha*-dec-osf*)
954 # ld works, but does not support shared libraries.
955 # gas doesn't generate exception information.
956 noconfigdirs="$noconfigdirs gas ld"
957 ;;
958 alpha*-*-*vms*)
959 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
960 ;;
961 alpha*-*-*)
962 # newlib is not 64 bit ready
963 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
964 ;;
965 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
966 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
967 ;;
968 arc-*-*|arceb-*-*)
969 noconfigdirs="$noconfigdirs target-libgloss"
970 ;;
971 arm-*-pe*)
972 noconfigdirs="$noconfigdirs target-libgloss"
973 ;;
974 arm-*-riscix*)
975 noconfigdirs="$noconfigdirs ld target-libgloss"
976 ;;
977 avr-*-rtems*)
978 ;;
979 avr-*-*)
980 if test x${with_avrlibc} != xno; then
981 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
982 fi
983 ;;
984 c4x-*-* | tic4x-*-*)
985 noconfigdirs="$noconfigdirs target-libgloss"
986 ;;
987 tic54x-*-*)
988 noconfigdirs="$noconfigdirs target-libgloss gdb"
989 ;;
990 d10v-*-*)
991 noconfigdirs="$noconfigdirs target-libgloss"
992 ;;
993 d30v-*-*)
994 noconfigdirs="$noconfigdirs gdb"
995 ;;
996 fr30-*-elf*)
997 noconfigdirs="$noconfigdirs gdb"
998 ;;
999 moxie-*-*)
1000 noconfigdirs="$noconfigdirs gprof"
1001 ;;
1002 h8300*-*-*)
1003 noconfigdirs="$noconfigdirs target-libgloss"
1004 ;;
1005 h8500-*-*)
1006 noconfigdirs="$noconfigdirs target-libgloss"
1007 ;;
1008 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1009 ;;
1010 hppa*64*-*-linux*)
1011 ;;
1012 hppa*-*-linux*)
1013 ;;
1014 hppa*-*-*elf* | \
1015 hppa*-*-lites* | \
1016 hppa*-*-openbsd* | \
1017 hppa*64*-*-*)
1018 ;;
1019 hppa*-hp-hpux11*)
1020 noconfigdirs="$noconfigdirs ld"
1021 ;;
1022 hppa*-*-pro*)
1023 ;;
1024 hppa*-*-*)
1025 noconfigdirs="$noconfigdirs ld"
1026 ;;
1027 i960-*-*)
1028 noconfigdirs="$noconfigdirs gdb"
1029 ;;
1030 ia64*-*-elf*)
1031 # No gdb support yet.
1032 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1033 ;;
1034 ia64*-**-hpux*)
1035 # No ld support yet.
1036 noconfigdirs="$noconfigdirs libgui itcl ld"
1037 ;;
1038 ia64*-*-*vms*)
1039 # No ld support yet.
1040 noconfigdirs="$noconfigdirs libgui itcl ld"
1041 ;;
1042 i[[3456789]]86-w64-mingw*)
1043 ;;
1044 i[[3456789]]86-*-mingw*)
1045 target_configdirs="$target_configdirs target-winsup"
1046 ;;
1047 *-*-cygwin*)
1048 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1049 noconfigdirs="$noconfigdirs target-libgloss"
1050 # always build newlib if winsup directory is present.
1051 if test -d "$srcdir/winsup/cygwin"; then
1052 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1053 elif test -d "$srcdir/newlib"; then
1054 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1055 fi
1056 ;;
1057 i[[3456789]]86-*-pe)
1058 noconfigdirs="$noconfigdirs target-libgloss"
1059 ;;
1060 i[[3456789]]86-*-sco3.2v5*)
1061 # The linker does not yet know about weak symbols in COFF,
1062 # and is not configured to handle mixed ELF and COFF.
1063 noconfigdirs="$noconfigdirs ld target-libgloss"
1064 ;;
1065 i[[3456789]]86-*-sco*)
1066 noconfigdirs="$noconfigdirs gprof target-libgloss"
1067 ;;
1068 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1069 noconfigdirs="$noconfigdirs target-libgloss"
1070 ;;
1071 i[[3456789]]86-*-sysv4*)
1072 noconfigdirs="$noconfigdirs target-libgloss"
1073 ;;
1074 i[[3456789]]86-*-beos*)
1075 noconfigdirs="$noconfigdirs gdb"
1076 ;;
1077 i[[3456789]]86-*-rdos*)
1078 noconfigdirs="$noconfigdirs gdb"
1079 ;;
1080 mmix-*-*)
1081 noconfigdirs="$noconfigdirs gdb"
1082 ;;
1083 mt-*-*)
1084 noconfigdirs="$noconfigdirs sim"
1085 ;;
1086 powerpc-*-aix*)
1087 # copied from rs6000-*-* entry
1088 noconfigdirs="$noconfigdirs gprof"
1089 ;;
1090 powerpc*-*-winnt* | powerpc*-*-pe*)
1091 target_configdirs="$target_configdirs target-winsup"
1092 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1093 # always build newlib.
1094 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1095 ;;
1096 # This is temporary until we can link against shared libraries
1097 powerpcle-*-solaris*)
1098 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1099 ;;
1100 powerpc-*-beos*)
1101 noconfigdirs="$noconfigdirs gdb"
1102 ;;
1103 rs6000-*-lynxos*)
1104 noconfigdirs="$noconfigdirs gprof"
1105 ;;
1106 rs6000-*-aix*)
1107 noconfigdirs="$noconfigdirs gprof"
1108 ;;
1109 rs6000-*-*)
1110 noconfigdirs="$noconfigdirs gprof"
1111 ;;
1112 m68k-apollo-*)
1113 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1114 ;;
1115 microblaze*)
1116 noconfigdirs="$noconfigdirs gprof"
1117 ;;
1118 mips*-sde-elf* | mips*-mti-elf*)
1119 if test x$with_newlib = xyes; then
1120 noconfigdirs="$noconfigdirs gprof"
1121 fi
1122 ;;
1123 mips*-*-irix5*)
1124 noconfigdirs="$noconfigdirs gprof target-libgloss"
1125 ;;
1126 mips*-*-irix6*)
1127 noconfigdirs="$noconfigdirs gprof target-libgloss"
1128 ;;
1129 mips*-*-bsd*)
1130 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1131 ;;
1132 mips*-*-linux*)
1133 ;;
1134 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1135 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1136 noconfigdirs="$noconfigdirs ld gas gprof"
1137 ;;
1138 mips*-*-*)
1139 noconfigdirs="$noconfigdirs gprof"
1140 ;;
1141 nvptx*-*-*)
1142 # nvptx is just a compiler
1143 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1144 ;;
1145 sh-*-* | sh64-*-*)
1146 case "${target}" in
1147 sh*-*-elf)
1148 ;;
1149 *)
1150 noconfigdirs="$noconfigdirs target-libgloss" ;;
1151 esac
1152 ;;
1153 sparc-*-sunos4*)
1154 if test x${is_cross_compiler} = xno ; then
1155 use_gnu_ld=no
1156 fi
1157 ;;
1158 tic6x-*-*)
1159 noconfigdirs="$noconfigdirs sim"
1160 ;;
1161 tilepro*-*-* | tilegx*-*-*)
1162 noconfigdirs="$noconfigdirs sim"
1163 ;;
1164 v810-*-*)
1165 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1166 ;;
1167 vax-*-*)
1168 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1169 ;;
1170 esac
1172 # If we aren't building newlib, then don't build libgloss, since libgloss
1173 # depends upon some newlib header files.
1174 case "${noconfigdirs}" in
1175 *target-libgloss*) ;;
1176 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1177 esac
1179 # Work in distributions that contain no compiler tools, like Autoconf.
1180 host_makefile_frag=/dev/null
1181 if test -d ${srcdir}/config ; then
1182 case "${host}" in
1183 i[[3456789]]86-*-msdosdjgpp*)
1184 host_makefile_frag="config/mh-djgpp"
1185 ;;
1186 *-cygwin*)
1187 ACX_CHECK_CYGWIN_CAT_WORKS
1188 host_makefile_frag="config/mh-cygwin"
1189 ;;
1190 *-mingw*)
1191 host_makefile_frag="config/mh-mingw"
1192 ;;
1193 alpha*-*-linux*)
1194 host_makefile_frag="config/mh-alpha-linux"
1195 ;;
1196 hppa*-hp-hpux10*)
1197 host_makefile_frag="config/mh-pa-hpux10"
1198 ;;
1199 hppa*-hp-hpux*)
1200 host_makefile_frag="config/mh-pa"
1201 ;;
1202 hppa*-*)
1203 host_makefile_frag="config/mh-pa"
1204 ;;
1205 *-*-darwin*)
1206 host_makefile_frag="config/mh-darwin"
1207 ;;
1208 powerpc-*-aix*)
1209 host_makefile_frag="config/mh-ppc-aix"
1210 ;;
1211 rs6000-*-aix*)
1212 host_makefile_frag="config/mh-ppc-aix"
1213 ;;
1214 esac
1215 fi
1217 if test "${build}" != "${host}" ; then
1218 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1219 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1220 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1221 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1222 GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
1223 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1224 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1225 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1226 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1227 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1228 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1229 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1230 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1231 else
1232 AR_FOR_BUILD="\$(AR)"
1233 AS_FOR_BUILD="\$(AS)"
1234 CC_FOR_BUILD="\$(CC)"
1235 CXX_FOR_BUILD="\$(CXX)"
1236 GCJ_FOR_BUILD="\$(GCJ)"
1237 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1238 GOC_FOR_BUILD="\$(GOC)"
1239 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1240 LD_FOR_BUILD="\$(LD)"
1241 NM_FOR_BUILD="\$(NM)"
1242 RANLIB_FOR_BUILD="\$(RANLIB)"
1243 WINDRES_FOR_BUILD="\$(WINDRES)"
1244 WINDMC_FOR_BUILD="\$(WINDMC)"
1245 fi
1247 AC_PROG_CC
1248 AC_PROG_CXX
1250 # We must set the default linker to the linker used by gcc for the correct
1251 # operation of libtool. If LD is not defined and we are using gcc, try to
1252 # set the LD default to the ld used by gcc.
1253 if test -z "$LD"; then
1254 if test "$GCC" = yes; then
1255 case $build in
1256 *-*-mingw*)
1257 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1258 *)
1259 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1260 esac
1261 case $gcc_prog_ld in
1262 # Accept absolute paths.
1263 [[\\/]* | [A-Za-z]:[\\/]*)]
1264 LD="$gcc_prog_ld" ;;
1265 esac
1266 fi
1267 fi
1269 # Check whether -static-libstdc++ -static-libgcc is supported.
1270 have_static_libs=no
1271 if test "$GCC" = yes; then
1272 saved_LDFLAGS="$LDFLAGS"
1274 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1275 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1276 AC_LANG_PUSH(C++)
1277 AC_LINK_IFELSE([
1278 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1279 #error -static-libstdc++ not implemented
1280 #endif
1281 int main() {}],
1282 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1283 [AC_MSG_RESULT([no])])
1284 AC_LANG_POP(C++)
1286 LDFLAGS="$saved_LDFLAGS"
1287 fi
1289 ACX_PROG_GNAT
1290 ACX_PROG_CMP_IGNORE_INITIAL
1292 AC_ARG_ENABLE([bootstrap],
1293 [AS_HELP_STRING([--enable-bootstrap],
1294 [enable bootstrapping @<:@yes if native build@:>@])],,
1295 enable_bootstrap=default)
1297 # Issue errors and warnings for invalid/strange bootstrap combinations.
1298 if test -r $srcdir/gcc/configure; then
1299 have_compiler=yes
1300 else
1301 have_compiler=no
1302 fi
1304 case "$have_compiler:$host:$target:$enable_bootstrap" in
1305 *:*:*:no) ;;
1307 # Default behavior. Enable bootstrap if we have a compiler
1308 # and we are in a native configuration.
1309 yes:$build:$build:default)
1310 enable_bootstrap=yes ;;
1312 *:*:*:default)
1313 enable_bootstrap=no ;;
1315 # We have a compiler and we are in a native configuration, bootstrap is ok
1316 yes:$build:$build:yes)
1317 ;;
1319 # Other configurations, but we have a compiler. Assume the user knows
1320 # what he's doing.
1321 yes:*:*:yes)
1322 AC_MSG_WARN([trying to bootstrap a cross compiler])
1323 ;;
1325 # No compiler: if they passed --enable-bootstrap explicitly, fail
1326 no:*:*:yes)
1327 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1329 # Fail if wrong command line
1330 *)
1331 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1332 ;;
1333 esac
1335 # Used for setting $lt_cv_objdir
1336 _LT_CHECK_OBJDIR
1338 # Check for GMP, MPFR and MPC
1339 gmplibs="-lmpc -lmpfr -lgmp"
1340 gmpinc=
1341 have_gmp=no
1343 # Specify a location for mpc
1344 # check for this first so it ends up on the link line before mpfr.
1345 AC_ARG_WITH(mpc,
1346 [AS_HELP_STRING([--with-mpc=PATH],
1347 [specify prefix directory for installed MPC package.
1348 Equivalent to --with-mpc-include=PATH/include
1349 plus --with-mpc-lib=PATH/lib])])
1350 AC_ARG_WITH(mpc-include,
1351 [AS_HELP_STRING([--with-mpc-include=PATH],
1352 [specify directory for installed MPC include files])])
1353 AC_ARG_WITH(mpc-lib,
1354 [AS_HELP_STRING([--with-mpc-lib=PATH],
1355 [specify directory for the installed MPC library])])
1357 if test "x$with_mpc" != x; then
1358 gmplibs="-L$with_mpc/lib $gmplibs"
1359 gmpinc="-I$with_mpc/include $gmpinc"
1360 fi
1361 if test "x$with_mpc_include" != x; then
1362 gmpinc="-I$with_mpc_include $gmpinc"
1363 fi
1364 if test "x$with_mpc_lib" != x; then
1365 gmplibs="-L$with_mpc_lib $gmplibs"
1366 fi
1367 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1368 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1369 gmpinc='-I$$s/mpc/src '"$gmpinc"
1370 # Do not test the mpc version. Assume that it is sufficient, since
1371 # it is in the source tree, and the library has not been built yet
1372 # but it would be included on the link line in the version check below
1373 # hence making the test fail.
1374 have_gmp=yes
1375 fi
1377 # Specify a location for mpfr
1378 # check for this first so it ends up on the link line before gmp.
1379 AC_ARG_WITH(mpfr-dir,
1380 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1381 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1382 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1384 AC_ARG_WITH(mpfr,
1385 [AS_HELP_STRING([--with-mpfr=PATH],
1386 [specify prefix directory for installed MPFR package.
1387 Equivalent to --with-mpfr-include=PATH/include
1388 plus --with-mpfr-lib=PATH/lib])])
1389 AC_ARG_WITH(mpfr-include,
1390 [AS_HELP_STRING([--with-mpfr-include=PATH],
1391 [specify directory for installed MPFR include files])])
1392 AC_ARG_WITH(mpfr-lib,
1393 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1394 [specify directory for the installed MPFR library])])
1396 if test "x$with_mpfr" != x; then
1397 gmplibs="-L$with_mpfr/lib $gmplibs"
1398 gmpinc="-I$with_mpfr/include $gmpinc"
1399 fi
1400 if test "x$with_mpfr_include" != x; then
1401 gmpinc="-I$with_mpfr_include $gmpinc"
1402 fi
1403 if test "x$with_mpfr_lib" != x; then
1404 gmplibs="-L$with_mpfr_lib $gmplibs"
1405 fi
1406 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1407 # MPFR v3.1.0 moved the sources into a src sub-directory.
1408 if test -d ${srcdir}/mpfr/src; then
1409 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1410 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1411 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1412 else
1413 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir $gmplibs"
1414 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1415 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir"
1416 fi
1417 # Do not test the mpfr version. Assume that it is sufficient, since
1418 # it is in the source tree, and the library has not been built yet
1419 # but it would be included on the link line in the version check below
1420 # hence making the test fail.
1421 have_gmp=yes
1422 fi
1424 # Specify a location for gmp
1425 AC_ARG_WITH(gmp-dir,
1426 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1427 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1428 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1430 AC_ARG_WITH(gmp,
1431 [AS_HELP_STRING([--with-gmp=PATH],
1432 [specify prefix directory for the installed GMP package.
1433 Equivalent to --with-gmp-include=PATH/include
1434 plus --with-gmp-lib=PATH/lib])])
1435 AC_ARG_WITH(gmp-include,
1436 [AS_HELP_STRING([--with-gmp-include=PATH],
1437 [specify directory for installed GMP include files])])
1438 AC_ARG_WITH(gmp-lib,
1439 [AS_HELP_STRING([--with-gmp-lib=PATH],
1440 [specify directory for the installed GMP library])])
1443 if test "x$with_gmp" != x; then
1444 gmplibs="-L$with_gmp/lib $gmplibs"
1445 gmpinc="-I$with_gmp/include $gmpinc"
1446 fi
1447 if test "x$with_gmp_include" != x; then
1448 gmpinc="-I$with_gmp_include $gmpinc"
1449 fi
1450 if test "x$with_gmp_lib" != x; then
1451 gmplibs="-L$with_gmp_lib $gmplibs"
1452 fi
1453 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1454 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1455 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1456 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1457 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1458 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1459 # Do not test the gmp version. Assume that it is sufficient, since
1460 # it is in the source tree, and the library has not been built yet
1461 # but it would be included on the link line in the version check below
1462 # hence making the test fail.
1463 have_gmp=yes
1464 fi
1466 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1467 have_gmp=yes
1468 saved_CFLAGS="$CFLAGS"
1469 CFLAGS="$CFLAGS $gmpinc"
1470 # Check for the recommended and required versions of GMP.
1471 AC_MSG_CHECKING([for the correct version of gmp.h])
1472 AC_TRY_COMPILE([#include "gmp.h"],[
1473 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1474 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1475 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1476 choke me
1477 #endif
1478 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1479 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1480 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1481 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1482 choke me
1483 #endif
1484 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1485 [AC_MSG_RESULT([no]); have_gmp=no])
1487 # If we have GMP, check the MPFR version.
1488 if test x"$have_gmp" = xyes; then
1489 # Check for the recommended and required versions of MPFR.
1490 AC_MSG_CHECKING([for the correct version of mpfr.h])
1491 AC_TRY_COMPILE([#include <gmp.h>
1492 #include <mpfr.h>],[
1493 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1494 choke me
1495 #endif
1496 ], [AC_TRY_COMPILE([#include <gmp.h>
1497 #include <mpfr.h>],[
1498 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1499 choke me
1500 #endif
1501 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1502 [AC_MSG_RESULT([no]); have_gmp=no])
1503 fi
1505 # Check for the MPC header version.
1506 if test x"$have_gmp" = xyes ; then
1507 # Check for the recommended and required versions of MPC.
1508 AC_MSG_CHECKING([for the correct version of mpc.h])
1509 AC_TRY_COMPILE([#include <mpc.h>],[
1510 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1511 choke me
1512 #endif
1513 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1514 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1515 choke me
1516 #endif
1517 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1518 [AC_MSG_RESULT([no]); have_gmp=no])
1519 fi
1521 # Now check the MPFR library.
1522 if test x"$have_gmp" = xyes; then
1523 saved_LIBS="$LIBS"
1524 LIBS="$LIBS $gmplibs"
1525 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1526 AC_TRY_LINK([#include <mpc.h>],[
1527 mpfr_t n;
1528 mpfr_t x;
1529 mpc_t c;
1530 int t;
1531 mpfr_init (n);
1532 mpfr_init (x);
1533 mpfr_atan2 (n, n, x, GMP_RNDN);
1534 mpfr_erfc (n, x, GMP_RNDN);
1535 mpfr_subnormalize (x, t, GMP_RNDN);
1536 mpfr_clear(n);
1537 mpfr_clear(x);
1538 mpc_init2 (c, 53);
1539 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1540 mpc_cosh (c, c, MPC_RNDNN);
1541 mpc_pow (c, c, c, MPC_RNDNN);
1542 mpc_acosh (c, c, MPC_RNDNN);
1543 mpc_clear (c);
1544 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1545 LIBS="$saved_LIBS"
1546 fi
1548 CFLAGS="$saved_CFLAGS"
1550 # The library versions listed in the error message below should match
1551 # the HARD-minimums enforced above.
1552 if test x$have_gmp != xyes; then
1553 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1554 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1555 their locations. Source code for these libraries can be found at
1556 their respective hosting sites as well as at
1557 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1558 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1559 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1560 make sure that you have installed both the libraries and the header
1561 files. They may be located in separate packages.])
1562 fi
1563 fi
1565 # Flags needed for both GMP, MPFR and/or MPC.
1566 AC_SUBST(gmplibs)
1567 AC_SUBST(gmpinc)
1568 AC_SUBST(extra_mpfr_configure_flags)
1569 AC_SUBST(extra_mpc_gmp_configure_flags)
1570 AC_SUBST(extra_mpc_mpfr_configure_flags)
1571 AC_SUBST(extra_isl_gmp_configure_flags)
1573 # Allow host libstdc++ to be specified for static linking with PPL.
1574 AC_ARG_WITH(host-libstdcxx,
1575 [AS_HELP_STRING([--with-host-libstdcxx=L],
1576 [use linker arguments L to link with libstdc++
1577 when linking with PPL])])
1579 case $with_host_libstdcxx in
1580 no|yes)
1581 AC_MSG_ERROR([-with-host-libstdcxx needs an argument])
1582 ;;
1583 esac
1585 # Libraries to use for stage1 or when not bootstrapping.
1586 AC_ARG_WITH(stage1-libs,
1587 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1588 [if test "$withval" = "no" -o "$withval" = "yes"; then
1589 stage1_libs=
1590 else
1591 stage1_libs=$withval
1592 fi],
1593 [stage1_libs=$with_host_libstdcxx])
1594 AC_SUBST(stage1_libs)
1596 # Linker flags to use for stage1 or when not bootstrapping.
1597 AC_ARG_WITH(stage1-ldflags,
1598 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1599 [if test "$withval" = "no" -o "$withval" = "yes"; then
1600 stage1_ldflags=
1601 else
1602 stage1_ldflags=$withval
1603 fi],
1604 [stage1_ldflags=
1605 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1606 # if supported. But if the user explicitly specified the libraries to use,
1607 # trust that they are doing what they want.
1608 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1609 stage1_ldflags="-static-libstdc++ -static-libgcc"
1610 fi])
1611 AC_SUBST(stage1_ldflags)
1613 # Libraries to use for stage2 and later builds. This defaults to the
1614 # argument passed to --with-host-libstdcxx.
1615 AC_ARG_WITH(boot-libs,
1616 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1617 [if test "$withval" = "no" -o "$withval" = "yes"; then
1618 poststage1_libs=
1619 else
1620 poststage1_libs=$withval
1621 fi],
1622 [poststage1_libs=$with_host_libstdcxx])
1623 AC_SUBST(poststage1_libs)
1625 # Linker flags to use for stage2 and later builds.
1626 AC_ARG_WITH(boot-ldflags,
1627 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1628 [linker flags for stage2 and later])],
1629 [if test "$withval" = "no" -o "$withval" = "yes"; then
1630 poststage1_ldflags=
1631 else
1632 poststage1_ldflags=$withval
1633 fi],
1634 [poststage1_ldflags=
1635 # In stages 2 and 3, default to linking libstdc++ and libgcc
1636 # statically. But if the user explicitly specified the libraries to
1637 # use, trust that they are doing what they want.
1638 if test "$poststage1_libs" = ""; then
1639 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1640 fi])
1641 AC_SUBST(poststage1_ldflags)
1643 # GCC GRAPHITE dependences, ISL and CLOOG which in turn requires ISL.
1644 # Basic setup is inlined here, actual checks are in config/cloog.m4 and
1645 # config/isl.m4
1647 AC_ARG_WITH(cloog,
1648 [AS_HELP_STRING(
1649 [--with-cloog=PATH],
1650 [Specify prefix directory for the installed CLooG-ISL package.
1651 Equivalent to --with-cloog-include=PATH/include
1652 plus --with-cloog-lib=PATH/lib])])
1653 AC_ARG_WITH(isl,
1654 [AS_HELP_STRING(
1655 [--with-isl=PATH],
1656 [Specify prefix directory for the installed ISL package.
1657 Equivalent to --with-isl-include=PATH/include
1658 plus --with-isl-lib=PATH/lib])])
1660 # Treat --without-isl as a request to disable
1661 # GRAPHITE support and skip all following checks.
1662 if test "x$with_isl" != "xno"; then
1663 # Check for ISL
1664 dnl Provide configure switches and initialize islinc & isllibs
1665 dnl with user input.
1666 ISL_INIT_FLAGS
1667 dnl The versions of ISL that work for Graphite
1668 ISL_CHECK_VERSION()
1669 dnl Only execute fail-action, if ISL has been requested.
1670 ISL_IF_FAILED([
1671 AC_MSG_ERROR([Unable to find a usable ISL. See config.log for details.])])
1673 if test "x$gcc_cv_isl" != "xno"; then
1674 # Check for CLOOG
1675 dnl Provide configure switches and initialize clooginc & clooglibs
1676 dnl with user input.
1677 CLOOG_INIT_FLAGS
1678 dnl The versions of CLooG that work for Graphite.
1679 CLOOG_CHECK_VERSION(0,18,1)
1681 dnl Only execute fail-action, if CLooG has been requested.
1682 CLOOG_IF_FAILED([
1683 AC_MSG_ERROR([Unable to find a usable CLooG. See config.log for details.])])
1684 fi
1685 fi
1687 # If the ISL check failed, disable builds of in-tree
1688 # variants of both ISL and CLooG
1689 if test "x$with_isl" = xno ||
1690 test "x$gcc_cv_isl" = xno; then
1691 noconfigdirs="$noconfigdirs cloog isl"
1692 islinc=
1693 clooginc=
1694 clooglibs=
1695 fi
1697 # If the CLooG check failed, disable builds of in-tree
1698 # variants of CLooG
1699 if test "x$with_cloog" = xno ||
1700 test "x$gcc_cv_cloog" = xno; then
1701 noconfigdirs="$noconfigdirs cloog isl"
1702 clooginc=
1703 clooglibs=
1704 fi
1706 AC_SUBST(isllibs)
1707 AC_SUBST(islinc)
1708 AC_SUBST(clooglibs)
1709 AC_SUBST(clooginc)
1711 # Check for LTO support.
1712 AC_ARG_ENABLE(lto,
1713 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1714 enable_lto=$enableval,
1715 enable_lto=yes; default_enable_lto=yes)
1717 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1718 build_lto_plugin=yes
1719 ],[if test x"$default_enable_lto" = x"yes" ; then
1720 case $target in
1721 *-apple-darwin9* | *-cygwin* | *-mingw*) ;;
1722 # On other non-ELF platforms, LTO has yet to be validated.
1723 *) enable_lto=no ;;
1724 esac
1725 else
1726 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1727 # It would also be nice to check the binutils support, but we don't
1728 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1729 # warn during gcc/ subconfigure; unless you're bootstrapping with
1730 # -flto it won't be needed until after installation anyway.
1731 case $target in
1732 *-cygwin* | *-mingw* | *-apple-darwin*) ;;
1733 *) if test x"$enable_lto" = x"yes"; then
1734 AC_MSG_ERROR([LTO support is not enabled for this target.])
1735 fi
1736 ;;
1737 esac
1738 fi
1739 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1740 # Build it unless LTO was explicitly disabled.
1741 case $target in
1742 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1743 *) ;;
1744 esac
1745 ])
1747 AC_ARG_ENABLE(linker-plugin-configure-flags,
1748 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1749 [additional flags for configuring linker plugins @<:@none@:>@])],
1750 extra_linker_plugin_configure_flags=$enableval,
1751 extra_linker_plugin_configure_flags=)
1752 AC_SUBST(extra_linker_plugin_configure_flags)
1753 AC_ARG_ENABLE(linker-plugin-flags,
1754 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1755 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1756 extra_linker_plugin_flags=$enableval,
1757 extra_linker_plugin_flags=)
1758 AC_SUBST(extra_linker_plugin_flags)
1761 # By default, C and C++ are the only stage 1 languages.
1762 stage1_languages=,c,
1764 # Target libraries that we bootstrap.
1765 bootstrap_target_libs=,target-libgcc,
1767 # Figure out what language subdirectories are present.
1768 # Look if the user specified --enable-languages="..."; if not, use
1769 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1770 # go away some day.
1771 # NB: embedded tabs in this IF block -- do not untabify
1772 if test -d ${srcdir}/gcc; then
1773 if test x"${enable_languages+set}" != xset; then
1774 if test x"${LANGUAGES+set}" = xset; then
1775 enable_languages="${LANGUAGES}"
1776 echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1777 else
1778 enable_languages=all
1779 fi
1780 else
1781 if test x"${enable_languages}" = x ||
1782 test x"${enable_languages}" = xyes;
1783 then
1784 echo configure.in: --enable-languages needs at least one language argument 1>&2
1785 exit 1
1786 fi
1787 fi
1788 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1790 # 'f95' is the old name for the 'fortran' language. We issue a warning
1791 # and make the substitution.
1792 case ,${enable_languages}, in
1793 *,f95,*)
1794 echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1795 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1796 ;;
1797 esac
1799 # If bootstrapping, C++ must be enabled.
1800 case ",$enable_languages,:$enable_bootstrap" in
1801 *,c++,*:*) ;;
1802 *:yes)
1803 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1804 enable_languages="${enable_languages},c++"
1805 else
1806 AC_MSG_ERROR([bootstrapping requires c++ sources])
1807 fi
1808 ;;
1809 esac
1811 # First scan to see if an enabled language requires some other language.
1812 # We assume that a given config-lang.in will list all the language
1813 # front ends it requires, even if some are required indirectly.
1814 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1815 case ${lang_frag} in
1816 ..) ;;
1817 # The odd quoting in the next line works around
1818 # an apparent bug in bash 1.12 on linux.
1819 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1820 *)
1821 # From the config-lang.in, get $language, $lang_requires, and
1822 # $lang_requires_boot_languages.
1823 language=
1824 lang_requires=
1825 lang_requires_boot_languages=
1826 . ${lang_frag}
1827 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1828 case ,${enable_languages}, in
1829 *,$other,*) ;;
1830 *,all,*) ;;
1831 *,$language,*)
1832 echo " \`$other' language required by \`$language'; enabling" 1>&2
1833 enable_languages="${enable_languages},${other}"
1834 ;;
1835 esac
1836 done
1837 for other in ${lang_requires_boot_languages} ; do
1838 if test "$other" != "c"; then
1839 case ,${enable_stage1_languages}, in
1840 *,$other,*) ;;
1841 *,all,*) ;;
1842 *)
1843 case ,${enable_languages}, in
1844 *,$language,*)
1845 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1846 enable_stage1_languages="$enable_stage1_languages,${other}"
1847 ;;
1848 esac
1849 ;;
1850 esac
1851 fi
1852 done
1853 ;;
1854 esac
1855 done
1857 new_enable_languages=,c,
1859 # If LTO is enabled, add the LTO front end.
1860 if test "$enable_lto" = "yes" ; then
1861 case ,${enable_languages}, in
1862 *,lto,*) ;;
1863 *) enable_languages="${enable_languages},lto" ;;
1864 esac
1865 if test "${build_lto_plugin}" = "yes" ; then
1866 configdirs="$configdirs lto-plugin"
1867 fi
1868 fi
1870 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1871 potential_languages=,c,
1873 enabled_target_libs=
1874 disabled_target_libs=
1876 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1877 case ${lang_frag} in
1878 ..) ;;
1879 # The odd quoting in the next line works around
1880 # an apparent bug in bash 1.12 on linux.
1881 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1882 *)
1883 # From the config-lang.in, get $language, $target_libs,
1884 # $lang_dirs, $boot_language, and $build_by_default
1885 language=
1886 target_libs=
1887 lang_dirs=
1888 subdir_requires=
1889 boot_language=no
1890 build_by_default=yes
1891 . ${lang_frag}
1892 if test x${language} = x; then
1893 echo "${lang_frag} doesn't set \$language." 1>&2
1894 exit 1
1895 fi
1897 if test "$language" = "c++"; then
1898 boot_language=yes
1899 fi
1901 add_this_lang=no
1902 case ,${enable_languages}, in
1903 *,${language},*)
1904 # Language was explicitly selected; include it
1905 # unless it is C, which is enabled by default.
1906 if test "$language" != "c"; then
1907 add_this_lang=yes
1908 fi
1909 ;;
1910 *,all,*)
1911 # 'all' was selected, select it if it is a default language
1912 if test "$language" != "c"; then
1913 add_this_lang=${build_by_default}
1914 fi
1915 ;;
1916 esac
1918 # Disable languages that need other directories if these aren't available.
1919 for i in $subdir_requires; do
1920 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1921 case ,${enable_languages}, in
1922 *,${language},*)
1923 # Specifically requested language; tell them.
1924 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1925 ;;
1926 *)
1927 # Silently disable.
1928 add_this_lang=unsupported
1929 ;;
1930 esac
1931 done
1933 # Disable Ada if no preexisting GNAT is available.
1934 case ,${enable_languages},:${language}:${have_gnat} in
1935 *,${language},*:ada:no)
1936 # Specifically requested language; tell them.
1937 AC_MSG_ERROR([GNAT is required to build $language])
1938 ;;
1939 *:ada:no)
1940 # Silently disable.
1941 add_this_lang=unsupported
1942 ;;
1943 esac
1945 # Disable a language that is unsupported by the target.
1946 case " $unsupported_languages " in
1947 *" $language "*)
1948 add_this_lang=unsupported
1949 ;;
1950 esac
1952 case $add_this_lang in
1953 unsupported)
1954 # Remove language-dependent dirs.
1955 disabled_target_libs="$disabled_target_libs $target_libs"
1956 noconfigdirs="$noconfigdirs $lang_dirs"
1957 ;;
1958 no)
1959 # Remove language-dependent dirs; still show language as supported.
1960 disabled_target_libs="$disabled_target_libs $target_libs"
1961 noconfigdirs="$noconfigdirs $lang_dirs"
1962 potential_languages="${potential_languages}${language},"
1963 ;;
1964 yes)
1965 new_enable_languages="${new_enable_languages}${language},"
1966 potential_languages="${potential_languages}${language},"
1967 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1968 enabled_target_libs="$enabled_target_libs $target_libs"
1969 case "${boot_language}:,$enable_stage1_languages," in
1970 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
1971 # Add to (comma-separated) list of stage 1 languages.
1972 case ",$stage1_languages," in
1973 *,$language,* | ,yes, | ,all,) ;;
1974 *) stage1_languages="${stage1_languages}${language}," ;;
1975 esac
1976 # We need to bootstrap any supporting libraries.
1977 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
1978 ;;
1979 esac
1980 ;;
1981 esac
1982 ;;
1983 esac
1984 done
1986 # Add target libraries which are only needed for disabled languages
1987 # to noconfigdirs.
1988 if test -n "$disabled_target_libs"; then
1989 for dir in $disabled_target_libs; do
1990 case " $enabled_target_libs " in
1991 *" ${dir} "*) ;;
1992 *) noconfigdirs="$noconfigdirs $dir" ;;
1993 esac
1994 done
1995 fi
1997 AC_ARG_ENABLE(stage1-languages,
1998 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
1999 [choose additional languages to build during
2000 stage1. Mostly useful for compiler development])],
2001 [case ,${enable_stage1_languages}, in
2002 ,no,|,,)
2003 # Set it to something that will have no effect in the loop below
2004 enable_stage1_languages=c ;;
2005 ,yes,)
2006 enable_stage1_languages=`echo $new_enable_languages | \
2007 sed -e "s/^,//" -e "s/,$//" ` ;;
2008 *,all,*)
2009 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2010 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2011 esac
2013 # Add "good" languages from enable_stage1_languages to stage1_languages,
2014 # while "bad" languages go in missing_languages. Leave no duplicates.
2015 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2016 case $potential_languages in
2017 *,$i,*)
2018 case $stage1_languages in
2019 *,$i,*) ;;
2020 *) stage1_languages="$stage1_languages$i," ;;
2021 esac ;;
2022 *)
2023 case $missing_languages in
2024 *,$i,*) ;;
2025 *) missing_languages="$missing_languages$i," ;;
2026 esac ;;
2027 esac
2028 done])
2030 # Remove leading/trailing commas that were added for simplicity
2031 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2032 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2033 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2034 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2036 if test "x$missing_languages" != x; then
2037 AC_MSG_ERROR([
2038 The following requested languages could not be built: ${missing_languages}
2039 Supported languages are: ${potential_languages}])
2040 fi
2041 if test "x$new_enable_languages" != "x$enable_languages"; then
2042 echo The following languages will be built: ${new_enable_languages}
2043 enable_languages="$new_enable_languages"
2044 fi
2046 AC_SUBST(stage1_languages)
2047 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2048 fi
2050 # Handle --disable-<component> generically.
2051 for dir in $configdirs $build_configdirs $target_configdirs ; do
2052 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2053 varname=`echo $dirname | sed -e s/+/_/g`
2054 if eval test x\${enable_${varname}} "=" xno ; then
2055 noconfigdirs="$noconfigdirs $dir"
2056 fi
2057 done
2059 # Check for Boehm's garbage collector
2060 AC_ARG_ENABLE(objc-gc,
2061 [AS_HELP_STRING([--enable-objc-gc],
2062 [enable use of Boehm's garbage collector with the
2063 GNU Objective-C runtime])],
2064 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
2065 *,objc,*:*:yes:*target-boehm-gc*)
2066 AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
2067 ;;
2068 esac])
2070 # Make sure we only build Boehm's garbage collector if required.
2071 case ,${enable_languages},:${enable_objc_gc} in
2072 *,objc,*:yes)
2073 # Keep target-boehm-gc if requested for Objective-C.
2074 ;;
2075 *)
2076 # Otherwise remove target-boehm-gc depending on target-libjava.
2077 if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
2078 noconfigdirs="$noconfigdirs target-boehm-gc"
2079 fi
2080 ;;
2081 esac
2083 # Disable libcilkrts, libitm, libsanitizer, libvtv if we're not building C++
2084 case ,${enable_languages}, in
2085 *,c++,*)
2086 # Disable libcilkrts, libitm, libsanitizer if we're not building libstdc++
2087 case "${noconfigdirs}" in
2088 *target-libstdc++-v3*)
2089 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer"
2090 ;;
2091 *) ;;
2092 esac
2093 ;;
2094 *)
2095 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer target-libvtv"
2096 ;;
2097 esac
2099 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2100 # $build_configdirs and $target_configdirs.
2101 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2103 notsupp=""
2104 for dir in . $skipdirs $noconfigdirs ; do
2105 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2106 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2107 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2108 if test -r $srcdir/$dirname/configure ; then
2109 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2110 true
2111 else
2112 notsupp="$notsupp $dir"
2113 fi
2114 fi
2115 fi
2116 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2117 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2118 if test -r $srcdir/$dirname/configure ; then
2119 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2120 true
2121 else
2122 notsupp="$notsupp $dir"
2123 fi
2124 fi
2125 fi
2126 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2127 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2128 if test -r $srcdir/$dirname/configure ; then
2129 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2130 true
2131 else
2132 notsupp="$notsupp $dir"
2133 fi
2134 fi
2135 fi
2136 done
2138 # Quietly strip out all directories which aren't configurable in this tree.
2139 # This relies on all configurable subdirectories being autoconfiscated, which
2140 # is now the case.
2141 build_configdirs_all="$build_configdirs"
2142 build_configdirs=
2143 for i in ${build_configdirs_all} ; do
2144 j=`echo $i | sed -e s/build-//g`
2145 if test -f ${srcdir}/$j/configure ; then
2146 build_configdirs="${build_configdirs} $i"
2147 fi
2148 done
2150 configdirs_all="$configdirs"
2151 configdirs=
2152 for i in ${configdirs_all} ; do
2153 if test -f ${srcdir}/$i/configure ; then
2154 configdirs="${configdirs} $i"
2155 fi
2156 done
2158 target_configdirs_all="$target_configdirs"
2159 target_configdirs=
2160 for i in ${target_configdirs_all} ; do
2161 j=`echo $i | sed -e s/target-//g`
2162 if test -f ${srcdir}/$j/configure ; then
2163 target_configdirs="${target_configdirs} $i"
2164 fi
2165 done
2167 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2168 # so we have to add it after the preceding checks.
2169 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2170 then
2171 case " $configdirs " in
2172 *" libiberty "*)
2173 # If we can build libiberty, we can also build libiberty-linker-plugin.
2174 configdirs="$configdirs libiberty-linker-plugin"
2175 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2176 --with-libiberty=../libiberty-linker-plugin";;
2177 *)
2178 AC_MSG_ERROR([libiberty missing]);;
2179 esac
2180 fi
2182 # Sometimes we have special requirements for the host libiberty.
2183 extra_host_libiberty_configure_flags=
2184 case " $configdirs " in
2185 *" lto-plugin "* | *" libcc1 "*)
2186 # When these are to be built as shared libraries, the same applies to
2187 # libiberty.
2188 extra_host_libiberty_configure_flags=--enable-shared
2189 ;;
2190 esac
2191 AC_SUBST(extra_host_libiberty_configure_flags)
2193 # Produce a warning message for the subdirs we can't configure.
2194 # This isn't especially interesting in the Cygnus tree, but in the individual
2195 # FSF releases, it's important to let people know when their machine isn't
2196 # supported by the one or two programs in a package.
2198 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2199 # If $appdirs is non-empty, at least one of those directories must still
2200 # be configured, or we error out. (E.g., if the gas release supports a
2201 # specified target in some subdirs but not the gas subdir, we shouldn't
2202 # pretend that all is well.)
2203 if test -n "$appdirs" ; then
2204 for dir in $appdirs ; do
2205 if test -r $dir/Makefile.in ; then
2206 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2207 appdirs=""
2208 break
2209 fi
2210 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2211 appdirs=""
2212 break
2213 fi
2214 fi
2215 done
2216 if test -n "$appdirs" ; then
2217 echo "*** This configuration is not supported by this package." 1>&2
2218 exit 1
2219 fi
2220 fi
2221 # Okay, some application will build, or we don't care to check. Still
2222 # notify of subdirs not getting built.
2223 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2224 echo " ${notsupp}" 1>&2
2225 echo " (Any other directories should still work fine.)" 1>&2
2226 fi
2228 case "$host" in
2229 *msdosdjgpp*)
2230 enable_gdbtk=no ;;
2231 esac
2233 # To find our prefix, in gcc_cv_tool_prefix.
2234 ACX_TOOL_DIRS
2236 copy_dirs=
2238 AC_ARG_WITH([build-sysroot],
2239 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2240 [use sysroot as the system root during the build])],
2241 [if test x"$withval" != x ; then
2242 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2243 fi],
2244 [SYSROOT_CFLAGS_FOR_TARGET=])
2245 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2247 AC_ARG_WITH([debug-prefix-map],
2248 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2249 [map A to B, C to D ... in debug information])],
2250 [if test x"$withval" != x; then
2251 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2252 for debug_map in $withval; do
2253 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2254 done
2255 fi],
2256 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2257 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2259 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2260 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2261 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2262 # We want to ensure that TARGET libraries (which we know are built with
2263 # gcc) are built with "-O2 -g", so include those options when setting
2264 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2265 if test "x$CFLAGS_FOR_TARGET" = x; then
2266 CFLAGS_FOR_TARGET=$CFLAGS
2267 case " $CFLAGS " in
2268 *" -O2 "*) ;;
2269 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2270 esac
2271 case " $CFLAGS " in
2272 *" -g "* | *" -g3 "*) ;;
2273 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2274 esac
2275 fi
2276 AC_SUBST(CFLAGS_FOR_TARGET)
2278 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2279 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2280 case " $CXXFLAGS " in
2281 *" -O2 "*) ;;
2282 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2283 esac
2284 case " $CXXFLAGS " in
2285 *" -g "* | *" -g3 "*) ;;
2286 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2287 esac
2288 fi
2289 AC_SUBST(CXXFLAGS_FOR_TARGET)
2291 AC_SUBST(LDFLAGS_FOR_TARGET)
2293 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2294 # the named directory are copied to $(tooldir)/sys-include.
2295 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2296 if test x${is_cross_compiler} = xno ; then
2297 echo 1>&2 '***' --with-headers is only supported when cross compiling
2298 exit 1
2299 fi
2300 if test x"${with_headers}" != xyes ; then
2301 x=${gcc_cv_tool_prefix}
2302 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2303 fi
2304 fi
2306 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2307 # the name directories are copied to $(tooldir)/lib. Multiple directories
2308 # are permitted.
2309 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2310 if test x${is_cross_compiler} = xno ; then
2311 echo 1>&2 '***' --with-libs is only supported when cross compiling
2312 exit 1
2313 fi
2314 if test x"${with_libs}" != xyes ; then
2315 # Copy the libraries in reverse order, so that files in the first named
2316 # library override files in subsequent libraries.
2317 x=${gcc_cv_tool_prefix}
2318 for l in ${with_libs}; do
2319 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2320 done
2321 fi
2322 fi
2324 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2325 #
2326 # This is done by determining whether or not the appropriate directory
2327 # is available, and by checking whether or not specific configurations
2328 # have requested that this magic not happen.
2329 #
2330 # The command line options always override the explicit settings in
2331 # configure.in, and the settings in configure.in override this magic.
2332 #
2333 # If the default for a toolchain is to use GNU as and ld, and you don't
2334 # want to do that, then you should use the --without-gnu-as and
2335 # --without-gnu-ld options for the configure script. Similarly, if
2336 # the default is to use the included zlib and you don't want to do that,
2337 # you should use the --with-system-zlib option for the configure script.
2339 if test x${use_gnu_as} = x &&
2340 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2341 with_gnu_as=yes
2342 extra_host_args="$extra_host_args --with-gnu-as"
2343 fi
2345 if test x${use_gnu_ld} = x &&
2346 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2347 with_gnu_ld=yes
2348 extra_host_args="$extra_host_args --with-gnu-ld"
2349 fi
2351 if test x${use_included_zlib} = x &&
2352 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2353 :
2354 else
2355 with_system_zlib=yes
2356 extra_host_args="$extra_host_args --with-system-zlib"
2357 fi
2359 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2360 # can detect this case.
2362 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2363 with_newlib=yes
2364 extra_host_args="$extra_host_args --with-newlib"
2365 fi
2367 # Handle ${copy_dirs}
2368 set fnord ${copy_dirs}
2369 shift
2370 while test $# != 0 ; do
2371 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2372 :
2373 else
2374 echo Copying $1 to $2
2376 # Use the install script to create the directory and all required
2377 # parent directories.
2378 if test -d $2 ; then
2379 :
2380 else
2381 echo >config.temp
2382 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2383 fi
2385 # Copy the directory, assuming we have tar.
2386 # FIXME: Should we use B in the second tar? Not all systems support it.
2387 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2389 # It is the responsibility of the user to correctly adjust all
2390 # symlinks. If somebody can figure out how to handle them correctly
2391 # here, feel free to add the code.
2393 echo $1 > $2/COPIED
2394 fi
2395 shift; shift
2396 done
2398 # Determine a target-dependent exec_prefix that the installed
2399 # gcc will search in. Keep this list sorted by triplet, with
2400 # the *-*-osname triplets last.
2401 md_exec_prefix=
2402 case "${target}" in
2403 i[[34567]]86-pc-msdosdjgpp*)
2404 md_exec_prefix=/dev/env/DJDIR/bin
2405 ;;
2406 *-*-hpux* | \
2407 *-*-nto-qnx* | \
2408 *-*-solaris2*)
2409 md_exec_prefix=/usr/ccs/bin
2410 ;;
2411 esac
2413 extra_arflags_for_target=
2414 extra_nmflags_for_target=
2415 extra_ranlibflags_for_target=
2416 target_makefile_frag=/dev/null
2417 case "${target}" in
2418 spu-*-*)
2419 target_makefile_frag="config/mt-spu"
2420 ;;
2421 mips*-sde-elf* | mips*-mti-elf*)
2422 target_makefile_frag="config/mt-sde"
2423 ;;
2424 mipsisa*-*-elfoabi*)
2425 target_makefile_frag="config/mt-mips-elfoabi"
2426 ;;
2427 mips*-*-*linux* | mips*-*-gnu*)
2428 target_makefile_frag="config/mt-mips-gnu"
2429 ;;
2430 nios2-*-elf*)
2431 target_makefile_frag="config/mt-nios2-elf"
2432 ;;
2433 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2434 target_makefile_frag="config/mt-gnu"
2435 ;;
2436 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2437 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2438 # commands to handle both 32-bit and 64-bit objects. These flags are
2439 # harmless if we're using GNU nm or ar.
2440 extra_arflags_for_target=" -X32_64"
2441 extra_nmflags_for_target=" -B -X32_64"
2442 ;;
2443 esac
2445 alphaieee_frag=/dev/null
2446 case $target in
2447 alpha*-*-*)
2448 # This just makes sure to use the -mieee option to build target libs.
2449 # This should probably be set individually by each library.
2450 alphaieee_frag="config/mt-alphaieee"
2451 ;;
2452 esac
2454 # If --enable-target-optspace always use -Os instead of -O2 to build
2455 # the target libraries, similarly if it is not specified, use -Os
2456 # on selected platforms.
2457 ospace_frag=/dev/null
2458 case "${enable_target_optspace}:${target}" in
2459 yes:*)
2460 ospace_frag="config/mt-ospace"
2461 ;;
2462 :d30v-*)
2463 ospace_frag="config/mt-d30v"
2464 ;;
2465 :m32r-* | :d10v-* | :fr30-*)
2466 ospace_frag="config/mt-ospace"
2467 ;;
2468 no:* | :*)
2469 ;;
2470 *)
2471 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2472 ;;
2473 esac
2475 # Some systems (e.g., one of the i386-aix systems the gas testers are
2476 # using) don't handle "\$" correctly, so don't use it here.
2477 tooldir='${exec_prefix}'/${target_noncanonical}
2478 build_tooldir=${tooldir}
2480 # Create a .gdbinit file which runs the one in srcdir
2481 # and tells GDB to look there for source files.
2483 if test -r ${srcdir}/.gdbinit ; then
2484 case ${srcdir} in
2485 .) ;;
2486 *) cat > ./.gdbinit <<EOF
2487 # ${NO_EDIT}
2488 dir ${srcdir}
2489 dir .
2490 source ${srcdir}/.gdbinit
2491 EOF
2492 ;;
2493 esac
2494 fi
2496 # Make sure that the compiler is able to generate an executable. If it
2497 # can't, we are probably in trouble. We don't care whether we can run the
2498 # executable--we might be using a cross compiler--we only care whether it
2499 # can be created. At this point the main configure script has set CC.
2500 we_are_ok=no
2501 echo "int main () { return 0; }" > conftest.c
2502 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2503 if test $? = 0 ; then
2504 if test -s conftest || test -s conftest.exe ; then
2505 we_are_ok=yes
2506 fi
2507 fi
2508 case $we_are_ok in
2509 no)
2510 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2511 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2512 rm -f conftest*
2513 exit 1
2514 ;;
2515 esac
2516 rm -f conftest*
2518 # Decide which environment variable is used to find dynamic libraries.
2519 case "${host}" in
2520 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2521 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2522 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2523 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2524 esac
2526 # On systems where the dynamic library environment variable is PATH,
2527 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2528 # built executables to PATH.
2529 if test "$RPATH_ENVVAR" = PATH; then
2530 GCC_SHLIB_SUBDIR=/shlib
2531 else
2532 GCC_SHLIB_SUBDIR=
2533 fi
2535 # Adjust the toplevel makefile according to whether bootstrap was selected.
2536 case $enable_bootstrap in
2537 yes)
2538 bootstrap_suffix=bootstrap
2539 BUILD_CONFIG=bootstrap-debug
2540 ;;
2541 no)
2542 bootstrap_suffix=no-bootstrap
2543 BUILD_CONFIG=
2544 ;;
2545 esac
2547 AC_MSG_CHECKING(for default BUILD_CONFIG)
2549 AC_ARG_WITH([build-config],
2550 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2551 [use config/NAME.mk build configuration])],
2552 [case $with_build_config in
2553 yes) with_build_config= ;;
2554 no) with_build_config= BUILD_CONFIG= ;;
2555 esac])
2557 if test "x${with_build_config}" != x; then
2558 BUILD_CONFIG=$with_build_config
2559 else
2560 case $BUILD_CONFIG in
2561 bootstrap-debug)
2562 if echo "int f (void) { return 0; }" > conftest.c &&
2563 ${CC} -c conftest.c &&
2564 mv conftest.o conftest.o.g0 &&
2565 ${CC} -c -g conftest.c &&
2566 mv conftest.o conftest.o.g &&
2567 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2568 :
2569 else
2570 BUILD_CONFIG=
2571 fi
2572 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2573 ;;
2574 esac
2575 fi
2576 AC_MSG_RESULT($BUILD_CONFIG)
2577 AC_SUBST(BUILD_CONFIG)
2579 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2580 AC_MSG_CHECKING([for --enable-vtable-verify])
2581 AC_ARG_ENABLE(vtable-verify,
2582 [ --enable-vtable-verify Enable vtable verification feature ],
2583 [case "$enableval" in
2584 yes) enable_vtable_verify=yes ;;
2585 no) enable_vtable_verify=no ;;
2586 *) enable_vtable_verify=no;;
2587 esac],
2588 [enable_vtable_verify=no])
2589 AC_MSG_RESULT($enable_vtable_verify)
2591 # Record target_configdirs and the configure arguments for target and
2592 # build configuration in Makefile.
2593 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2594 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2595 bootstrap_fixincludes=no
2597 # If we are building libgomp, bootstrap it.
2598 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2599 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2600 fi
2602 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2603 # or bootstrap-ubsan, bootstrap it.
2604 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2605 case "$BUILD_CONFIG" in
2606 *bootstrap-asan* | *bootstrap-ubsan* )
2607 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2608 bootstrap_fixincludes=yes
2609 ;;
2610 esac
2611 fi
2613 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2614 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2615 test "$enable_vtable_verify" != no; then
2616 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2617 fi
2619 # Determine whether gdb needs tk/tcl or not.
2620 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2621 # and in that case we want gdb to be built without tk. Ugh!
2622 # In fact I believe gdb is the *only* package directly dependent on tk,
2623 # so we should be able to put the 'maybe's in unconditionally and
2624 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2625 # 100% sure that that's safe though.
2627 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2628 case "$enable_gdbtk" in
2629 no)
2630 GDB_TK="" ;;
2631 yes)
2632 GDB_TK="${gdb_tk}" ;;
2633 *)
2634 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2635 # distro. Eventually someone will fix this and move Insight, nee
2636 # gdbtk to a separate directory.
2637 if test -d ${srcdir}/gdb/gdbtk ; then
2638 GDB_TK="${gdb_tk}"
2639 else
2640 GDB_TK=""
2641 fi
2642 ;;
2643 esac
2644 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2645 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2647 # Strip out unwanted targets.
2649 # While at that, we remove Makefiles if we were started for recursive
2650 # configuration, so that the top-level Makefile reconfigures them,
2651 # like we used to do when configure itself was recursive.
2653 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2654 # but now we're fixing up the Makefile ourselves with the additional
2655 # commands passed to AC_CONFIG_FILES. Use separate variables
2656 # extrasub-{build,host,target} not because there is any reason to split
2657 # the substitutions up that way, but only to remain below the limit of
2658 # 99 commands in a script, for HP-UX sed.
2659 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2661 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2662 yes:yes:*\ gold\ *:*,c++,*) ;;
2663 yes:yes:*\ gold\ *:*)
2664 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2665 ;;
2666 esac
2668 extrasub_build=
2669 for module in ${build_configdirs} ; do
2670 if test -z "${no_recursion}" \
2671 && test -f ${build_subdir}/${module}/Makefile; then
2672 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2673 rm -f ${build_subdir}/${module}/Makefile
2674 fi
2675 extrasub_build="$extrasub_build
2676 /^@if build-$module\$/d
2677 /^@endif build-$module\$/d
2678 /^@if build-$module-$bootstrap_suffix\$/d
2679 /^@endif build-$module-$bootstrap_suffix\$/d"
2680 done
2681 extrasub_host=
2682 for module in ${configdirs} ; do
2683 if test -z "${no_recursion}"; then
2684 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2685 if test -f ${file}; then
2686 echo 1>&2 "*** removing ${file} to force reconfigure"
2687 rm -f ${file}
2688 fi
2689 done
2690 fi
2691 case ${module},${bootstrap_fixincludes} in
2692 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2693 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2694 esac
2695 extrasub_host="$extrasub_host
2696 /^@if $module\$/d
2697 /^@endif $module\$/d
2698 /^@if $module-$host_bootstrap_suffix\$/d
2699 /^@endif $module-$host_bootstrap_suffix\$/d"
2700 done
2701 extrasub_target=
2702 for module in ${target_configdirs} ; do
2703 if test -z "${no_recursion}" \
2704 && test -f ${target_subdir}/${module}/Makefile; then
2705 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2706 rm -f ${target_subdir}/${module}/Makefile
2707 fi
2709 # We only bootstrap target libraries listed in bootstrap_target_libs.
2710 case $bootstrap_target_libs in
2711 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2712 *) target_bootstrap_suffix=no-bootstrap ;;
2713 esac
2715 extrasub_target="$extrasub_target
2716 /^@if target-$module\$/d
2717 /^@endif target-$module\$/d
2718 /^@if target-$module-$target_bootstrap_suffix\$/d
2719 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2720 done
2722 # Do the final fixup along with target modules.
2723 extrasub_target="$extrasub_target
2724 /^@if /,/^@endif /d"
2726 # Create the serialization dependencies. This uses a temporary file.
2728 AC_ARG_ENABLE([serial-configure],
2729 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2730 [force sequential configuration of
2731 sub-packages for the host, target or build
2732 machine, or all sub-packages])])
2734 case ${enable_serial_configure} in
2735 yes)
2736 enable_serial_build_configure=yes
2737 enable_serial_host_configure=yes
2738 enable_serial_target_configure=yes
2739 ;;
2740 esac
2742 # These force 'configure's to be done one at a time, to avoid problems
2743 # with contention over a shared config.cache.
2744 rm -f serdep.tmp
2745 echo '# serdep.tmp' > serdep.tmp
2746 olditem=
2747 test "x${enable_serial_build_configure}" = xyes &&
2748 for item in ${build_configdirs} ; do
2749 case ${olditem} in
2750 "") ;;
2751 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2752 esac
2753 olditem=${item}
2754 done
2755 olditem=
2756 test "x${enable_serial_host_configure}" = xyes &&
2757 for item in ${configdirs} ; do
2758 case ${olditem} in
2759 "") ;;
2760 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2761 esac
2762 olditem=${item}
2763 done
2764 olditem=
2765 test "x${enable_serial_target_configure}" = xyes &&
2766 for item in ${target_configdirs} ; do
2767 case ${olditem} in
2768 "") ;;
2769 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2770 esac
2771 olditem=${item}
2772 done
2773 serialization_dependencies=serdep.tmp
2774 AC_SUBST_FILE(serialization_dependencies)
2776 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2777 # target, nonopt, and variable assignments. These are the ones we
2778 # might not want to pass down to subconfigures. The exception being
2779 # --cache-file=/dev/null, which is used to turn off the use of cache
2780 # files altogether, and which should be passed on to subconfigures.
2781 # Also strip program-prefix, program-suffix, and program-transform-name,
2782 # so that we can pass down a consistent program-transform-name.
2783 baseargs=
2784 tbaseargs=
2785 keep_next=no
2786 skip_next=no
2787 eval "set -- $ac_configure_args"
2788 for ac_arg
2789 do
2790 if test X"$skip_next" = X"yes"; then
2791 skip_next=no
2792 continue
2793 fi
2794 if test X"$keep_next" = X"yes"; then
2795 case $ac_arg in
2796 *\'*)
2797 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2798 esac
2799 baseargs="$baseargs '$ac_arg'"
2800 tbaseargs="$tbaseargs '$ac_arg'"
2801 keep_next=no
2802 continue
2803 fi
2805 # Handle separated arguments. Based on the logic generated by
2806 # autoconf 2.59.
2807 case $ac_arg in
2808 *=* | --config-cache | -C | -disable-* | --disable-* \
2809 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2810 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2811 | -with-* | --with-* | -without-* | --without-* | --x)
2812 separate_arg=no
2813 ;;
2814 -*)
2815 separate_arg=yes
2816 ;;
2817 *)
2818 separate_arg=no
2819 ;;
2820 esac
2822 skip_targ=no
2823 case $ac_arg in
2824 changequote(,)
2825 --with-* | --without-*)
2826 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2828 case $libopt in
2829 *[-_]include)
2830 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2831 ;;
2832 *[-_]lib)
2833 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2834 ;;
2835 *)
2836 lib=$libopt
2837 ;;
2838 esac
2839 changequote([,])
2841 case $lib in
2842 mpc | mpfr | gmp | isl | cloog)
2843 # If we're processing --with-$lib, --with-$lib-include or
2844 # --with-$lib-lib, for one of the libs above, and target is
2845 # different from host, don't pass the current argument to any
2846 # target library's configure.
2847 if test x$is_cross_compiler = xyes; then
2848 skip_targ=yes
2849 fi
2850 ;;
2851 esac
2852 ;;
2853 esac
2855 case "$ac_arg" in
2856 --cache-file=/dev/null | \
2857 -cache-file=/dev/null )
2858 # Handled here to avoid the test to skip args below.
2859 baseargs="$baseargs '$ac_arg'"
2860 tbaseargs="$tbaseargs '$ac_arg'"
2861 # Assert: $separate_arg should always be no.
2862 keep_next=$separate_arg
2863 ;;
2864 --no*)
2865 continue
2866 ;;
2867 --c* | \
2868 --sr* | \
2869 --ho* | \
2870 --bu* | \
2871 --t* | \
2872 --program-* | \
2873 -cache_file* | \
2874 -srcdir* | \
2875 -host* | \
2876 -build* | \
2877 -target* | \
2878 -program-prefix* | \
2879 -program-suffix* | \
2880 -program-transform-name* )
2881 skip_next=$separate_arg
2882 continue
2883 ;;
2884 -*)
2885 # An option. Add it.
2886 case $ac_arg in
2887 *\'*)
2888 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2889 esac
2890 baseargs="$baseargs '$ac_arg'"
2891 if test X"$skip_targ" = Xno; then
2892 tbaseargs="$tbaseargs '$ac_arg'"
2893 fi
2894 keep_next=$separate_arg
2895 ;;
2896 *)
2897 # Either a variable assignment, or a nonopt (triplet). Don't
2898 # pass it down; let the Makefile handle this.
2899 continue
2900 ;;
2901 esac
2902 done
2903 # Remove the initial space we just introduced and, as these will be
2904 # expanded by make, quote '$'.
2905 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2907 # Add in --program-transform-name, after --program-prefix and
2908 # --program-suffix have been applied to it. Autoconf has already
2909 # doubled dollar signs and backslashes in program_transform_name; we want
2910 # the backslashes un-doubled, and then the entire thing wrapped in single
2911 # quotes, because this will be expanded first by make and then by the shell.
2912 # Also, because we want to override the logic in subdir configure scripts to
2913 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2914 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2915 ${program_transform_name}
2916 EOF_SED
2917 gcc_transform_name=`cat conftestsed.out`
2918 rm -f conftestsed.out
2919 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2920 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
2921 if test "$silent" = yes; then
2922 baseargs="$baseargs --silent"
2923 tbaseargs="$tbaseargs --silent"
2924 fi
2925 baseargs="$baseargs --disable-option-checking"
2926 tbaseargs="$tbaseargs --disable-option-checking"
2928 # Record and document user additions to sub configure arguments.
2929 AC_ARG_VAR([build_configargs],
2930 [additional configure arguments for build directories])
2931 AC_ARG_VAR([host_configargs],
2932 [additional configure arguments for host directories])
2933 AC_ARG_VAR([target_configargs],
2934 [additional configure arguments for target directories])
2936 # For the build-side libraries, we just need to pretend we're native,
2937 # and not use the same cache file. Multilibs are neither needed nor
2938 # desired. We can't even use the same cache file for all build-side
2939 # libraries, as they're compiled differently; some with C, some with
2940 # C++ or with different feature-enabling options.
2941 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
2943 # For host modules, accept cache file option, or specification as blank.
2944 case "${cache_file}" in
2945 "") # empty
2946 cache_file_option="" ;;
2947 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2948 cache_file_option="--cache-file=${cache_file}" ;;
2949 *) # relative path
2950 cache_file_option="--cache-file=../${cache_file}" ;;
2951 esac
2953 # Host dirs don't like to share a cache file either, horribly enough.
2954 # This seems to be due to autoconf 2.5x stupidity.
2955 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
2957 target_configargs="$target_configargs ${tbaseargs}"
2959 # Passing a --with-cross-host argument lets the target libraries know
2960 # whether they are being built with a cross-compiler or being built
2961 # native. However, it would be better to use other mechanisms to make the
2962 # sorts of decisions they want to make on this basis. Please consider
2963 # this option to be deprecated. FIXME.
2964 if test x${is_cross_compiler} = xyes ; then
2965 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
2966 fi
2968 # Special user-friendly check for native x86_64-linux build, if
2969 # multilib is not explicitly enabled.
2970 case "$target:$have_compiler:$host:$target:$enable_multilib" in
2971 x86_64-*linux*:yes:$build:$build:)
2972 # Make sure we have a developement environment that handles 32-bit
2973 dev64=no
2974 echo "int main () { return 0; }" > conftest.c
2975 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2976 if test $? = 0 ; then
2977 if test -s conftest || test -s conftest.exe ; then
2978 dev64=yes
2979 fi
2980 fi
2981 rm -f conftest*
2982 if test x${dev64} != xyes ; then
2983 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.])
2984 fi
2985 ;;
2986 esac
2988 # Default to --enable-multilib.
2989 if test x${enable_multilib} = x ; then
2990 target_configargs="--enable-multilib ${target_configargs}"
2991 fi
2993 # Pass --with-newlib if appropriate. Note that target_configdirs has
2994 # changed from the earlier setting of with_newlib.
2995 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2996 target_configargs="--with-newlib ${target_configargs}"
2997 fi
2999 # Different target subdirs use different values of certain variables
3000 # (notably CXX). Worse, multilibs use *lots* of different values.
3001 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3002 # it doesn't automatically accept command-line overrides of them.
3003 # This means it's not safe for target subdirs to share a cache file,
3004 # which is disgusting, but there you have it. Hopefully this can be
3005 # fixed in future. It's still worthwhile to use a cache file for each
3006 # directory. I think.
3008 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3009 # We need to pass --target, as newer autoconf's requires consistency
3010 # for target_alias and gcc doesn't manage it consistently.
3011 target_configargs="--cache-file=./config.cache ${target_configargs}"
3013 FLAGS_FOR_TARGET=
3014 case " $target_configdirs " in
3015 *" newlib "*)
3016 case " $target_configargs " in
3017 *" --with-newlib "*)
3018 case "$target" in
3019 *-cygwin*)
3020 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3021 ;;
3022 esac
3024 # If we're not building GCC, don't discard standard headers.
3025 if test -d ${srcdir}/gcc; then
3026 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3028 if test "${build}" != "${host}"; then
3029 # On Canadian crosses, CC_FOR_TARGET will have already been set
3030 # by `configure', so we won't have an opportunity to add -Bgcc/
3031 # to it. This is right: we don't want to search that directory
3032 # for binaries, but we want the header files in there, so add
3033 # them explicitly.
3034 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3036 # Someone might think of using the pre-installed headers on
3037 # Canadian crosses, in case the installed compiler is not fully
3038 # compatible with the compiler being built. In this case, it
3039 # would be better to flag an error than risking having
3040 # incompatible object files being constructed. We can't
3041 # guarantee that an error will be flagged, but let's hope the
3042 # compiler will do it, when presented with incompatible header
3043 # files.
3044 fi
3045 fi
3047 case "${target}-${is_cross_compiler}" in
3048 i[[3456789]]86-*-linux*-no)
3049 # Here host == target, so we don't need to build gcc,
3050 # so we don't want to discard standard headers.
3051 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3052 ;;
3053 *)
3054 # If we're building newlib, use its generic headers last, but search
3055 # for any libc-related directories first (so make it the last -B
3056 # switch).
3057 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3059 # If we're building libgloss, find the startup file, simulator library
3060 # and linker script.
3061 case " $target_configdirs " in
3062 *" libgloss "*)
3063 # Look for startup file, simulator library and maybe linker script.
3064 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3065 # Look for libnosys.a in case the target needs it.
3066 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3067 # Most targets have the linker script in the source directory.
3068 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3069 ;;
3070 esac
3071 ;;
3072 esac
3073 ;;
3074 esac
3075 ;;
3076 esac
3078 case "$target" in
3079 x86_64-*mingw* | *-w64-mingw*)
3080 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3081 # however, use a symlink named 'mingw' in ${prefix} .
3082 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3083 ;;
3084 *-mingw*)
3085 # MinGW can't be handled as Cygwin above since it does not use newlib.
3086 FLAGS_FOR_TARGET=$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'
3087 ;;
3088 esac
3090 # Allow the user to override the flags for
3091 # our build compiler if desired.
3092 if test x"${build}" = x"${host}" ; then
3093 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3094 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3095 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3096 fi
3098 # On Canadian crosses, we'll be searching the right directories for
3099 # the previously-installed cross compiler, so don't bother to add
3100 # flags for directories within the install tree of the compiler
3101 # being built; programs in there won't even run.
3102 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3103 # Search for pre-installed headers if nothing else fits.
3104 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3105 fi
3107 if test "x${use_gnu_ld}" = x &&
3108 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3109 # Arrange for us to find uninstalled linker scripts.
3110 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3111 fi
3113 # Search for other target-specific linker scripts and such.
3114 case "${target}" in
3115 mep*)
3116 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3117 ;;
3118 esac
3120 # Makefile fragments.
3121 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3122 do
3123 eval fragval=\$$frag
3124 if test $fragval != /dev/null; then
3125 eval $frag=${srcdir}/$fragval
3126 fi
3127 done
3128 AC_SUBST_FILE(host_makefile_frag)
3129 AC_SUBST_FILE(target_makefile_frag)
3130 AC_SUBST_FILE(alphaieee_frag)
3131 AC_SUBST_FILE(ospace_frag)
3133 # Miscellanea: directories, flags, etc.
3134 AC_SUBST(RPATH_ENVVAR)
3135 AC_SUBST(GCC_SHLIB_SUBDIR)
3136 AC_SUBST(tooldir)
3137 AC_SUBST(build_tooldir)
3138 AC_SUBST(CONFIGURE_GDB_TK)
3139 AC_SUBST(GDB_TK)
3140 AC_SUBST(INSTALL_GDB_TK)
3142 # Build module lists & subconfigure args.
3143 AC_SUBST(build_configargs)
3144 AC_SUBST(build_configdirs)
3146 # Host module lists & subconfigure args.
3147 AC_SUBST(host_configargs)
3148 AC_SUBST(configdirs)
3149 AC_SUBST(target_configdirs)
3151 # Target module lists & subconfigure args.
3152 AC_SUBST(target_configargs)
3155 # Build tools.
3156 AC_SUBST(AR_FOR_BUILD)
3157 AC_SUBST(AS_FOR_BUILD)
3158 AC_SUBST(CC_FOR_BUILD)
3159 AC_SUBST(CFLAGS_FOR_BUILD)
3160 AC_SUBST(CXXFLAGS_FOR_BUILD)
3161 AC_SUBST(CXX_FOR_BUILD)
3162 AC_SUBST(DLLTOOL_FOR_BUILD)
3163 AC_SUBST(GCJ_FOR_BUILD)
3164 AC_SUBST(GFORTRAN_FOR_BUILD)
3165 AC_SUBST(GOC_FOR_BUILD)
3166 AC_SUBST(LDFLAGS_FOR_BUILD)
3167 AC_SUBST(LD_FOR_BUILD)
3168 AC_SUBST(NM_FOR_BUILD)
3169 AC_SUBST(RANLIB_FOR_BUILD)
3170 AC_SUBST(WINDMC_FOR_BUILD)
3171 AC_SUBST(WINDRES_FOR_BUILD)
3173 # Generate default definitions for YACC, M4, LEX and other programs that run
3174 # on the build machine. These are used if the Makefile can't locate these
3175 # programs in objdir.
3176 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3178 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3179 case " $build_configdirs " in
3180 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3181 esac
3183 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3184 case " $build_configdirs " in
3185 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3186 esac
3188 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3189 case " $build_configdirs " in
3190 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3191 esac
3193 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3194 case " $build_configdirs " in
3195 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3196 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3197 esac
3199 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3200 case " $build_configdirs " in
3201 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3202 esac
3204 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3205 case " $build_configdirs " in
3206 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3207 *)
3208 changequote(,)
3209 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3210 # higher, else we use the "missing" dummy.
3211 if ${MAKEINFO} --version \
3212 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3213 :
3214 else
3215 MAKEINFO="$MISSING makeinfo"
3216 fi
3217 ;;
3218 changequote([,])
3219 esac
3221 # FIXME: expect and dejagnu may become build tools?
3223 AC_CHECK_PROGS(EXPECT, expect, expect)
3224 case " $configdirs " in
3225 *" expect "*)
3226 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3227 ;;
3228 esac
3230 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3231 case " $configdirs " in
3232 *" dejagnu "*)
3233 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3234 ;;
3235 esac
3238 # Host tools.
3239 NCN_STRICT_CHECK_TOOLS(AR, ar)
3240 NCN_STRICT_CHECK_TOOLS(AS, as)
3241 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3242 NCN_STRICT_CHECK_TOOLS(LD, ld)
3243 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3244 NCN_STRICT_CHECK_TOOLS(NM, nm)
3245 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3246 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3247 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3248 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3249 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3250 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3251 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3252 AC_SUBST(CC)
3253 AC_SUBST(CXX)
3254 AC_SUBST(CFLAGS)
3255 AC_SUBST(CXXFLAGS)
3257 # Target tools.
3258 AC_ARG_WITH([build-time-tools],
3259 [AS_HELP_STRING([--with-build-time-tools=PATH],
3260 [use given path to find target tools during the build])],
3261 [case x"$withval" in
3262 x/*) ;;
3263 *)
3264 with_build_time_tools=
3265 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3266 ;;
3267 esac],
3268 [with_build_time_tools=])
3270 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3271 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3272 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3273 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
3274 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3275 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3277 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3278 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3279 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3280 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3281 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3282 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3283 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3284 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3285 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3286 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3287 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3288 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3290 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3292 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3293 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3294 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3295 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3296 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3297 [gcc/xg++ -B$$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$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3298 c++)
3299 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3300 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3301 c++)
3302 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3303 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3304 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
3305 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
3306 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3307 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3308 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3309 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3310 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3311 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3312 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3313 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3314 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3315 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3316 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3317 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3318 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3320 AC_SUBST(FLAGS_FOR_TARGET)
3321 AC_SUBST(RAW_CXX_FOR_TARGET)
3323 # Certain tools may need extra flags.
3324 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3325 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3326 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3328 # When building target libraries, except in a Canadian cross, we use
3329 # the same toolchain as the compiler we just built.
3330 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3331 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3332 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3333 if test $host = $build; then
3334 case " $configdirs " in
3335 *" gcc "*)
3336 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3337 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3338 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3339 ;;
3340 esac
3341 fi
3343 AC_SUBST(COMPILER_AS_FOR_TARGET)
3344 AC_SUBST(COMPILER_LD_FOR_TARGET)
3345 AC_SUBST(COMPILER_NM_FOR_TARGET)
3347 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3348 AC_ARG_ENABLE(maintainer-mode,
3349 [AS_HELP_STRING([--enable-maintainer-mode],
3350 [enable make rules and dependencies not useful
3351 (and sometimes confusing) to the casual installer])],
3352 USE_MAINTAINER_MODE=$enableval,
3353 USE_MAINTAINER_MODE=no)
3354 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3355 AC_SUBST(MAINTAINER_MODE_TRUE)
3356 AC_SUBST(MAINTAINER_MODE_FALSE)
3357 if test "$USE_MAINTAINER_MODE" = yes; then
3358 MAINTAINER_MODE_TRUE=
3359 MAINTAINER_MODE_FALSE='#'
3360 else
3361 MAINTAINER_MODE_TRUE='#'
3362 MAINTAINER_MODE_FALSE=
3363 fi
3364 MAINT=$MAINTAINER_MODE_TRUE
3365 AC_SUBST(MAINT)dnl
3367 # ---------------------
3368 # GCC bootstrap support
3369 # ---------------------
3371 # Stage specific cflags for build.
3372 stage1_cflags="-g"
3373 case $build in
3374 vax-*-*)
3375 case ${GCC} in
3376 yes) stage1_cflags="-g -Wa,-J" ;;
3377 *) stage1_cflags="-g -J" ;;
3378 esac ;;
3379 esac
3381 AC_SUBST(stage1_cflags)
3383 # Enable --enable-checking in stage1 of the compiler.
3384 AC_ARG_ENABLE(stage1-checking,
3385 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3386 [choose additional checking for stage1 of the compiler])],
3387 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3388 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3389 stage1_checking=--enable-checking=yes,types
3390 else
3391 stage1_checking=--enable-checking=$enable_checking,types
3392 fi])
3393 AC_SUBST(stage1_checking)
3395 # Enable -Werror in bootstrap stage2 and later.
3396 AC_ARG_ENABLE(werror,
3397 [AS_HELP_STRING([--enable-werror],
3398 [enable -Werror in bootstrap stage2 and later])], [],
3399 [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3400 enable_werror=yes
3401 else
3402 enable_werror=no
3403 fi])
3404 case ${enable_werror} in
3405 yes) stage2_werror_flag="--enable-werror-always" ;;
3406 *) stage2_werror_flag="" ;;
3407 esac
3408 AC_SUBST(stage2_werror_flag)
3410 # Enable --enable-host-shared.
3411 AC_ARG_ENABLE(host-shared,
3412 [AS_HELP_STRING([--enable-host-shared],
3413 [build host code as shared libraries])],
3414 [host_shared=$enableval], [host_shared=no])
3415 AC_SUBST(host_shared)
3417 # Specify what files to not compare during bootstrap.
3419 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3420 case "$target" in
3421 hppa*64*-*-hpux*) ;;
3422 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
3423 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3424 esac
3425 AC_SUBST(compare_exclusions)
3427 AC_CONFIG_FILES([Makefile],
3428 [sed "$extrasub_build" Makefile |
3429 sed "$extrasub_host" |
3430 sed "$extrasub_target" > mf$$
3431 mv -f mf$$ Makefile],
3432 [extrasub_build="$extrasub_build"
3433 extrasub_host="$extrasub_host"
3434 extrasub_target="$extrasub_target"])
3435 AC_OUTPUT