| blob | 573109277ae6b5d3af5bae3d9352aac522b41665 |
1 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
2 # 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
3 # Free Software Foundation, Inc.
4 #
5 # This file is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 3 of the License, or
8 # (at your option) any later version.
9 #
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program; see the file COPYING3. If not see
17 # <http://www.gnu.org/licenses/>.
19 ##############################################################################
20 ### WARNING: this file contains embedded tabs. Do not run untabify on this file.
22 m4_include(config/acx.m4)
23 m4_include(config/override.m4)
24 m4_include(config/proginstall.m4)
25 m4_include(config/elf.m4)
26 m4_include([libtool.m4])
27 m4_include([ltoptions.m4])
28 m4_include([ltsugar.m4])
29 m4_include([ltversion.m4])
30 m4_include([lt~obsolete.m4])
31 m4_include([config/isl.m4])
32 m4_include([config/cloog.m4])
34 AC_INIT(move-if-change)
35 AC_PREREQ(2.64)
36 AC_DISABLE_OPTION_CHECKING
38 progname=$0
39 # if PWD already has a value, it is probably wrong.
40 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
42 # Export original configure arguments for use by sub-configures.
43 # Quote arguments with shell meta charatcers.
44 TOPLEVEL_CONFIGURE_ARGUMENTS=
45 set -- "$progname" "$@"
46 for ac_arg
47 do
48 case "$ac_arg" in
49 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
50 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
51 # if the argument is of the form -foo=baz, quote the baz part only
52 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
53 *) ;;
54 esac
55 # Add the quoted argument to the list.
56 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
57 done
58 if test "$silent" = yes; then
59 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
60 fi
61 # Remove the initial space we just introduced and, as these will be
62 # expanded by make, quote '$'.
63 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
64 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
66 # Find the build, host, and target systems.
67 ACX_NONCANONICAL_BUILD
68 ACX_NONCANONICAL_HOST
69 ACX_NONCANONICAL_TARGET
71 dnl Autoconf 2.5x and later will set a default program prefix if
72 dnl --target was used, even if it was the same as --host. Disable
73 dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
74 dnl to take effect.
75 test "$host_noncanonical" = "$target_noncanonical" &&
76 test "$program_prefix$program_suffix$program_transform_name" = \
77 NONENONEs,x,x, &&
78 program_transform_name=s,y,y,
80 AC_CANONICAL_SYSTEM
81 AC_ARG_PROGRAM
83 m4_pattern_allow([^AS_FOR_TARGET$])dnl
84 m4_pattern_allow([^AS_FOR_BUILD$])dnl
86 # Get 'install' or 'install-sh' and its variants.
87 AC_PROG_INSTALL
88 ACX_PROG_LN
89 AC_PROG_LN_S
90 AC_PROG_SED
91 AC_PROG_AWK
93 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
95 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
96 # a relative path.
97 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
98 INSTALL="${srcpwd}/install-sh -c"
99 fi
101 # Set srcdir to "." if that's what it is.
102 # This is important for multilib support.
103 pwd=`${PWDCMD-pwd}`
104 if test "${pwd}" = "${srcpwd}" ; then
105 srcdir=.
106 fi
108 topsrcdir=$srcpwd
110 extra_host_args=
112 ### To add a new directory to the tree, first choose whether it is a target
113 ### or a host dependent tool. Then put it into the appropriate list
114 ### (library or tools, host or target), doing a dependency sort.
116 # Subdirs will be configured in the order listed in build_configdirs,
117 # configdirs, or target_configdirs; see the serialization section below.
119 # Dependency sorting is only needed when *configuration* must be done in
120 # a particular order. In all cases a dependency should be specified in
121 # the Makefile, whether or not it's implicitly specified here.
123 # Double entries in build_configdirs, configdirs, or target_configdirs may
124 # cause circular dependencies and break everything horribly.
126 # these library is used by various programs built for the build
127 # environment
128 #
129 build_libs="build-libiberty 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"
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.
776 case "${target}" in
777 *-*-darwin* | *-*-cygwin* | *-*-mingw* | *-*-aix*)
778 unsupported_languages="$unsupported_languages go"
779 ;;
780 esac
782 # Disable libgo for some systems where it is known to not work.
783 # For testing, you can easily override this with --enable-libgo.
784 if test x$enable_libgo = x; then
785 case "${target}" in
786 *-*-darwin*)
787 # PR 46986
788 noconfigdirs="$noconfigdirs target-libgo"
789 ;;
790 *-*-cygwin* | *-*-mingw*)
791 noconfigdirs="$noconfigdirs target-libgo"
792 ;;
793 *-*-aix*)
794 noconfigdirs="$noconfigdirs target-libgo"
795 ;;
796 esac
797 fi
799 # Default libgloss CPU subdirectory.
800 libgloss_dir="$target_cpu"
802 case "${target}" in
803 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
804 libgloss_dir=wince
805 ;;
806 aarch64*-*-* )
807 libgloss_dir=aarch64
808 ;;
809 arm*-*-*)
810 libgloss_dir=arm
811 ;;
812 cris-*-* | crisv32-*-*)
813 libgloss_dir=cris
814 ;;
815 hppa*-*-*)
816 libgloss_dir=pa
817 ;;
818 i[[3456789]]86-*-*)
819 libgloss_dir=i386
820 ;;
821 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
822 libgloss_dir=m68hc11
823 ;;
824 m68*-*-* | fido-*-*)
825 libgloss_dir=m68k
826 ;;
827 mips*-*-*)
828 libgloss_dir=mips
829 ;;
830 powerpc*-*-*)
831 libgloss_dir=rs6000
832 ;;
833 sparc*-*-*)
834 libgloss_dir=sparc
835 ;;
836 esac
838 # Disable newlib and libgloss for various target OSes.
839 case "${target}" in
840 alpha*-dec-osf*)
841 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
842 ;;
843 i[[3456789]]86-*-linux*)
844 # This section makes it possible to build newlib natively on linux.
845 # If we are using a cross compiler then don't configure newlib.
846 if test x${is_cross_compiler} != xno ; then
847 noconfigdirs="$noconfigdirs target-newlib"
848 fi
849 noconfigdirs="$noconfigdirs target-libgloss"
850 # If we are not using a cross compiler, do configure newlib.
851 # Note however, that newlib will only be configured in this situation
852 # if the --with-newlib option has been given, because otherwise
853 # 'target-newlib' will appear in skipdirs.
854 ;;
855 i[[3456789]]86-*-rdos*)
856 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
857 ;;
858 sh*-*-pe|mips*-*-pe|arm-wince-pe)
859 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
860 ;;
861 sparc-*-sunos4*)
862 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
863 ;;
864 *-*-aix*)
865 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
866 ;;
867 *-*-beos*)
868 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
869 ;;
870 *-*-chorusos)
871 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
872 ;;
873 *-*-dragonfly*)
874 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
875 ;;
876 *-*-freebsd*)
877 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
878 ;;
879 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
880 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
881 ;;
882 *-*-lynxos*)
883 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
884 ;;
885 *-*-mingw*)
886 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
887 ;;
888 *-*-netbsd*)
889 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
890 ;;
891 *-*-netware*)
892 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
893 ;;
894 *-*-tpf*)
895 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
896 ;;
897 *-*-uclinux*)
898 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
899 ;;
900 *-*-vxworks*)
901 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
902 ;;
903 esac
905 case "${target}" in
906 *-*-chorusos)
907 ;;
908 powerpc-*-darwin*)
909 noconfigdirs="$noconfigdirs ld gas gdb gprof"
910 noconfigdirs="$noconfigdirs sim target-rda"
911 ;;
912 i[[3456789]]86-*-darwin*)
913 noconfigdirs="$noconfigdirs ld gprof"
914 noconfigdirs="$noconfigdirs sim target-rda"
915 ;;
916 x86_64-*-darwin[[912]]*)
917 noconfigdirs="$noconfigdirs ld gas gprof"
918 noconfigdirs="$noconfigdirs sim target-rda"
919 ;;
920 *-*-darwin*)
921 noconfigdirs="$noconfigdirs ld gas gdb gprof"
922 noconfigdirs="$noconfigdirs sim target-rda"
923 ;;
924 *-*-dragonfly*)
925 ;;
926 *-*-freebsd*)
927 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
928 && test -f /usr/local/include/gmp.h; then
929 with_gmp=/usr/local
930 fi
931 ;;
932 *-*-kaos*)
933 # Remove unsupported stuff on all kaOS configurations.
934 noconfigdirs="$noconfigdirs target-libgloss"
935 ;;
936 *-*-netbsd*)
937 ;;
938 *-*-netware*)
939 ;;
940 *-*-rtems*)
941 noconfigdirs="$noconfigdirs target-libgloss"
942 ;;
943 # The tpf target doesn't support gdb yet.
944 *-*-tpf*)
945 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
946 ;;
947 *-*-uclinux*)
948 noconfigdirs="$noconfigdirs target-rda"
949 ;;
950 *-*-vxworks*)
951 ;;
952 alpha*-dec-osf*)
953 # ld works, but does not support shared libraries.
954 # gas doesn't generate exception information.
955 noconfigdirs="$noconfigdirs gas ld"
956 ;;
957 alpha*-*-*vms*)
958 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
959 ;;
960 alpha*-*-*)
961 # newlib is not 64 bit ready
962 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
963 ;;
964 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
965 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
966 ;;
967 arc-*-*|arceb-*-*)
968 noconfigdirs="$noconfigdirs target-libgloss"
969 ;;
970 arm-*-pe*)
971 noconfigdirs="$noconfigdirs target-libgloss"
972 ;;
973 arm-*-riscix*)
974 noconfigdirs="$noconfigdirs ld target-libgloss"
975 ;;
976 avr-*-rtems*)
977 ;;
978 avr-*-*)
979 if test x${with_avrlibc} != xno; then
980 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
981 fi
982 ;;
983 c4x-*-* | tic4x-*-*)
984 noconfigdirs="$noconfigdirs target-libgloss"
985 ;;
986 tic54x-*-*)
987 noconfigdirs="$noconfigdirs target-libgloss gdb"
988 ;;
989 d10v-*-*)
990 noconfigdirs="$noconfigdirs target-libgloss"
991 ;;
992 d30v-*-*)
993 noconfigdirs="$noconfigdirs gdb"
994 ;;
995 fr30-*-elf*)
996 noconfigdirs="$noconfigdirs gdb"
997 ;;
998 moxie-*-*)
999 noconfigdirs="$noconfigdirs gprof"
1000 ;;
1001 h8300*-*-*)
1002 noconfigdirs="$noconfigdirs target-libgloss"
1003 ;;
1004 h8500-*-*)
1005 noconfigdirs="$noconfigdirs target-libgloss"
1006 ;;
1007 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1008 ;;
1009 hppa*64*-*-linux*)
1010 ;;
1011 hppa*-*-linux*)
1012 ;;
1013 hppa*-*-*elf* | \
1014 hppa*-*-lites* | \
1015 hppa*-*-openbsd* | \
1016 hppa*64*-*-*)
1017 ;;
1018 hppa*-hp-hpux11*)
1019 noconfigdirs="$noconfigdirs ld"
1020 ;;
1021 hppa*-*-pro*)
1022 ;;
1023 hppa*-*-*)
1024 noconfigdirs="$noconfigdirs ld"
1025 ;;
1026 i960-*-*)
1027 noconfigdirs="$noconfigdirs gdb"
1028 ;;
1029 ia64*-*-elf*)
1030 # No gdb support yet.
1031 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1032 ;;
1033 ia64*-**-hpux*)
1034 # No ld support yet.
1035 noconfigdirs="$noconfigdirs libgui itcl ld"
1036 ;;
1037 ia64*-*-*vms*)
1038 # No ld support yet.
1039 noconfigdirs="$noconfigdirs libgui itcl ld"
1040 ;;
1041 i[[3456789]]86-w64-mingw*)
1042 ;;
1043 i[[3456789]]86-*-mingw*)
1044 target_configdirs="$target_configdirs target-winsup"
1045 ;;
1046 *-*-cygwin*)
1047 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1048 noconfigdirs="$noconfigdirs target-libgloss"
1049 # always build newlib if winsup directory is present.
1050 if test -d "$srcdir/winsup/cygwin"; then
1051 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1052 elif test -d "$srcdir/newlib"; then
1053 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1054 fi
1055 ;;
1056 i[[3456789]]86-*-pe)
1057 noconfigdirs="$noconfigdirs target-libgloss"
1058 ;;
1059 i[[3456789]]86-*-sco3.2v5*)
1060 # The linker does not yet know about weak symbols in COFF,
1061 # and is not configured to handle mixed ELF and COFF.
1062 noconfigdirs="$noconfigdirs ld target-libgloss"
1063 ;;
1064 i[[3456789]]86-*-sco*)
1065 noconfigdirs="$noconfigdirs gprof target-libgloss"
1066 ;;
1067 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1068 noconfigdirs="$noconfigdirs target-libgloss"
1069 ;;
1070 i[[3456789]]86-*-sysv4*)
1071 noconfigdirs="$noconfigdirs target-libgloss"
1072 ;;
1073 i[[3456789]]86-*-beos*)
1074 noconfigdirs="$noconfigdirs gdb"
1075 ;;
1076 i[[3456789]]86-*-rdos*)
1077 noconfigdirs="$noconfigdirs gdb"
1078 ;;
1079 mmix-*-*)
1080 noconfigdirs="$noconfigdirs gdb"
1081 ;;
1082 mt-*-*)
1083 noconfigdirs="$noconfigdirs sim"
1084 ;;
1085 powerpc-*-aix*)
1086 # copied from rs6000-*-* entry
1087 noconfigdirs="$noconfigdirs gprof"
1088 ;;
1089 powerpc*-*-winnt* | powerpc*-*-pe*)
1090 target_configdirs="$target_configdirs target-winsup"
1091 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1092 # always build newlib.
1093 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1094 ;;
1095 # This is temporary until we can link against shared libraries
1096 powerpcle-*-solaris*)
1097 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1098 ;;
1099 powerpc-*-beos*)
1100 noconfigdirs="$noconfigdirs gdb"
1101 ;;
1102 rs6000-*-lynxos*)
1103 noconfigdirs="$noconfigdirs gprof"
1104 ;;
1105 rs6000-*-aix*)
1106 noconfigdirs="$noconfigdirs gprof"
1107 ;;
1108 rs6000-*-*)
1109 noconfigdirs="$noconfigdirs gprof"
1110 ;;
1111 m68k-apollo-*)
1112 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1113 ;;
1114 microblaze*)
1115 noconfigdirs="$noconfigdirs gprof"
1116 ;;
1117 mips*-sde-elf* | mips*-mti-elf*)
1118 if test x$with_newlib = xyes; then
1119 noconfigdirs="$noconfigdirs gprof"
1120 fi
1121 ;;
1122 mips*-*-irix5*)
1123 noconfigdirs="$noconfigdirs gprof target-libgloss"
1124 ;;
1125 mips*-*-irix6*)
1126 noconfigdirs="$noconfigdirs gprof target-libgloss"
1127 ;;
1128 mips*-*-bsd*)
1129 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1130 ;;
1131 mips*-*-linux*)
1132 ;;
1133 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1134 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1135 noconfigdirs="$noconfigdirs ld gas gprof"
1136 ;;
1137 mips*-*-*)
1138 noconfigdirs="$noconfigdirs gprof"
1139 ;;
1140 sh-*-* | sh64-*-*)
1141 case "${target}" in
1142 sh*-*-elf)
1143 ;;
1144 *)
1145 noconfigdirs="$noconfigdirs target-libgloss" ;;
1146 esac
1147 ;;
1148 sparc-*-sunos4*)
1149 if test x${is_cross_compiler} = xno ; then
1150 use_gnu_ld=no
1151 fi
1152 ;;
1153 tic6x-*-*)
1154 noconfigdirs="$noconfigdirs sim"
1155 ;;
1156 tilepro*-*-* | tilegx*-*-*)
1157 noconfigdirs="$noconfigdirs sim"
1158 ;;
1159 v810-*-*)
1160 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1161 ;;
1162 vax-*-*)
1163 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1164 ;;
1165 esac
1167 # If we aren't building newlib, then don't build libgloss, since libgloss
1168 # depends upon some newlib header files.
1169 case "${noconfigdirs}" in
1170 *target-libgloss*) ;;
1171 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1172 esac
1174 # Work in distributions that contain no compiler tools, like Autoconf.
1175 host_makefile_frag=/dev/null
1176 if test -d ${srcdir}/config ; then
1177 case "${host}" in
1178 i[[3456789]]86-*-msdosdjgpp*)
1179 host_makefile_frag="config/mh-djgpp"
1180 ;;
1181 *-cygwin*)
1182 ACX_CHECK_CYGWIN_CAT_WORKS
1183 host_makefile_frag="config/mh-cygwin"
1184 ;;
1185 *-mingw*)
1186 host_makefile_frag="config/mh-mingw"
1187 ;;
1188 alpha*-*-linux*)
1189 host_makefile_frag="config/mh-alpha-linux"
1190 ;;
1191 hppa*-hp-hpux10*)
1192 host_makefile_frag="config/mh-pa-hpux10"
1193 ;;
1194 hppa*-hp-hpux*)
1195 host_makefile_frag="config/mh-pa"
1196 ;;
1197 hppa*-*)
1198 host_makefile_frag="config/mh-pa"
1199 ;;
1200 *-*-darwin*)
1201 host_makefile_frag="config/mh-darwin"
1202 ;;
1203 powerpc-*-aix*)
1204 host_makefile_frag="config/mh-ppc-aix"
1205 ;;
1206 rs6000-*-aix*)
1207 host_makefile_frag="config/mh-ppc-aix"
1208 ;;
1209 esac
1210 fi
1212 if test "${build}" != "${host}" ; then
1213 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1214 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1215 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1216 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1217 GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
1218 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1219 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1220 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1221 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1222 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1223 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1224 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1225 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1226 else
1227 AR_FOR_BUILD="\$(AR)"
1228 AS_FOR_BUILD="\$(AS)"
1229 CC_FOR_BUILD="\$(CC)"
1230 CXX_FOR_BUILD="\$(CXX)"
1231 GCJ_FOR_BUILD="\$(GCJ)"
1232 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1233 GOC_FOR_BUILD="\$(GOC)"
1234 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1235 LD_FOR_BUILD="\$(LD)"
1236 NM_FOR_BUILD="\$(NM)"
1237 RANLIB_FOR_BUILD="\$(RANLIB)"
1238 WINDRES_FOR_BUILD="\$(WINDRES)"
1239 WINDMC_FOR_BUILD="\$(WINDMC)"
1240 fi
1242 AC_PROG_CC
1243 AC_PROG_CXX
1245 # We must set the default linker to the linker used by gcc for the correct
1246 # operation of libtool. If LD is not defined and we are using gcc, try to
1247 # set the LD default to the ld used by gcc.
1248 if test -z "$LD"; then
1249 if test "$GCC" = yes; then
1250 case $build in
1251 *-*-mingw*)
1252 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1253 *)
1254 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1255 esac
1256 case $gcc_prog_ld in
1257 # Accept absolute paths.
1258 [[\\/]* | [A-Za-z]:[\\/]*)]
1259 LD="$gcc_prog_ld" ;;
1260 esac
1261 fi
1262 fi
1264 # Check whether -static-libstdc++ -static-libgcc is supported.
1265 have_static_libs=no
1266 if test "$GCC" = yes; then
1267 saved_LDFLAGS="$LDFLAGS"
1269 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1270 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1271 AC_LANG_PUSH(C++)
1272 AC_LINK_IFELSE([
1273 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1274 #error -static-libstdc++ not implemented
1275 #endif
1276 int main() {}],
1277 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1278 [AC_MSG_RESULT([no])])
1279 AC_LANG_POP(C++)
1281 LDFLAGS="$saved_LDFLAGS"
1282 fi
1284 ACX_PROG_GNAT
1285 ACX_PROG_CMP_IGNORE_INITIAL
1287 AC_ARG_ENABLE([bootstrap],
1288 [AS_HELP_STRING([--enable-bootstrap],
1289 [enable bootstrapping @<:@yes if native build@:>@])],,
1290 enable_bootstrap=default)
1292 # Issue errors and warnings for invalid/strange bootstrap combinations.
1293 if test -r $srcdir/gcc/configure; then
1294 have_compiler=yes
1295 else
1296 have_compiler=no
1297 fi
1299 case "$have_compiler:$host:$target:$enable_bootstrap" in
1300 *:*:*:no) ;;
1302 # Default behavior. Enable bootstrap if we have a compiler
1303 # and we are in a native configuration.
1304 yes:$build:$build:default)
1305 enable_bootstrap=yes ;;
1307 *:*:*:default)
1308 enable_bootstrap=no ;;
1310 # We have a compiler and we are in a native configuration, bootstrap is ok
1311 yes:$build:$build:yes)
1312 ;;
1314 # Other configurations, but we have a compiler. Assume the user knows
1315 # what he's doing.
1316 yes:*:*:yes)
1317 AC_MSG_WARN([trying to bootstrap a cross compiler])
1318 ;;
1320 # No compiler: if they passed --enable-bootstrap explicitly, fail
1321 no:*:*:yes)
1322 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1324 # Fail if wrong command line
1325 *)
1326 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1327 ;;
1328 esac
1330 # Used for setting $lt_cv_objdir
1331 _LT_CHECK_OBJDIR
1333 # Check for GMP, MPFR and MPC
1334 gmplibs="-lmpc -lmpfr -lgmp"
1335 gmpinc=
1336 have_gmp=no
1338 # Specify a location for mpc
1339 # check for this first so it ends up on the link line before mpfr.
1340 AC_ARG_WITH(mpc,
1341 [AS_HELP_STRING([--with-mpc=PATH],
1342 [specify prefix directory for installed MPC package.
1343 Equivalent to --with-mpc-include=PATH/include
1344 plus --with-mpc-lib=PATH/lib])])
1345 AC_ARG_WITH(mpc-include,
1346 [AS_HELP_STRING([--with-mpc-include=PATH],
1347 [specify directory for installed MPC include files])])
1348 AC_ARG_WITH(mpc-lib,
1349 [AS_HELP_STRING([--with-mpc-lib=PATH],
1350 [specify directory for the installed MPC library])])
1352 if test "x$with_mpc" != x; then
1353 gmplibs="-L$with_mpc/lib $gmplibs"
1354 gmpinc="-I$with_mpc/include $gmpinc"
1355 fi
1356 if test "x$with_mpc_include" != x; then
1357 gmpinc="-I$with_mpc_include $gmpinc"
1358 fi
1359 if test "x$with_mpc_lib" != x; then
1360 gmplibs="-L$with_mpc_lib $gmplibs"
1361 fi
1362 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1363 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1364 gmpinc='-I$$s/mpc/src '"$gmpinc"
1365 # Do not test the mpc version. Assume that it is sufficient, since
1366 # it is in the source tree, and the library has not been built yet
1367 # but it would be included on the link line in the version check below
1368 # hence making the test fail.
1369 have_gmp=yes
1370 fi
1372 # Specify a location for mpfr
1373 # check for this first so it ends up on the link line before gmp.
1374 AC_ARG_WITH(mpfr-dir,
1375 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1376 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1377 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1379 AC_ARG_WITH(mpfr,
1380 [AS_HELP_STRING([--with-mpfr=PATH],
1381 [specify prefix directory for installed MPFR package.
1382 Equivalent to --with-mpfr-include=PATH/include
1383 plus --with-mpfr-lib=PATH/lib])])
1384 AC_ARG_WITH(mpfr-include,
1385 [AS_HELP_STRING([--with-mpfr-include=PATH],
1386 [specify directory for installed MPFR include files])])
1387 AC_ARG_WITH(mpfr-lib,
1388 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1389 [specify directory for the installed MPFR library])])
1391 if test "x$with_mpfr" != x; then
1392 gmplibs="-L$with_mpfr/lib $gmplibs"
1393 gmpinc="-I$with_mpfr/include $gmpinc"
1394 fi
1395 if test "x$with_mpfr_include" != x; then
1396 gmpinc="-I$with_mpfr_include $gmpinc"
1397 fi
1398 if test "x$with_mpfr_lib" != x; then
1399 gmplibs="-L$with_mpfr_lib $gmplibs"
1400 fi
1401 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1402 # MPFR v3.1.0 moved the sources into a src sub-directory.
1403 if test -d ${srcdir}/mpfr/src; then
1404 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1405 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1406 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1407 else
1408 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir $gmplibs"
1409 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1410 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir"
1411 fi
1412 # Do not test the mpfr version. Assume that it is sufficient, since
1413 # it is in the source tree, and the library has not been built yet
1414 # but it would be included on the link line in the version check below
1415 # hence making the test fail.
1416 have_gmp=yes
1417 fi
1419 # Specify a location for gmp
1420 AC_ARG_WITH(gmp-dir,
1421 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1422 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1423 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1425 AC_ARG_WITH(gmp,
1426 [AS_HELP_STRING([--with-gmp=PATH],
1427 [specify prefix directory for the installed GMP package.
1428 Equivalent to --with-gmp-include=PATH/include
1429 plus --with-gmp-lib=PATH/lib])])
1430 AC_ARG_WITH(gmp-include,
1431 [AS_HELP_STRING([--with-gmp-include=PATH],
1432 [specify directory for installed GMP include files])])
1433 AC_ARG_WITH(gmp-lib,
1434 [AS_HELP_STRING([--with-gmp-lib=PATH],
1435 [specify directory for the installed GMP library])])
1438 if test "x$with_gmp" != x; then
1439 gmplibs="-L$with_gmp/lib $gmplibs"
1440 gmpinc="-I$with_gmp/include $gmpinc"
1441 fi
1442 if test "x$with_gmp_include" != x; then
1443 gmpinc="-I$with_gmp_include $gmpinc"
1444 fi
1445 if test "x$with_gmp_lib" != x; then
1446 gmplibs="-L$with_gmp_lib $gmplibs"
1447 fi
1448 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1449 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1450 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1451 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1452 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1453 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1454 # Do not test the gmp version. Assume that it is sufficient, since
1455 # it is in the source tree, and the library has not been built yet
1456 # but it would be included on the link line in the version check below
1457 # hence making the test fail.
1458 have_gmp=yes
1459 fi
1461 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1462 have_gmp=yes
1463 saved_CFLAGS="$CFLAGS"
1464 CFLAGS="$CFLAGS $gmpinc"
1465 # Check for the recommended and required versions of GMP.
1466 AC_MSG_CHECKING([for the correct version of gmp.h])
1467 AC_TRY_COMPILE([#include "gmp.h"],[
1468 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1469 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1470 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1471 choke me
1472 #endif
1473 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1474 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1475 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1476 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1477 choke me
1478 #endif
1479 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1480 [AC_MSG_RESULT([no]); have_gmp=no])
1482 # If we have GMP, check the MPFR version.
1483 if test x"$have_gmp" = xyes; then
1484 # Check for the recommended and required versions of MPFR.
1485 AC_MSG_CHECKING([for the correct version of mpfr.h])
1486 AC_TRY_COMPILE([#include <gmp.h>
1487 #include <mpfr.h>],[
1488 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1489 choke me
1490 #endif
1491 ], [AC_TRY_COMPILE([#include <gmp.h>
1492 #include <mpfr.h>],[
1493 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1494 choke me
1495 #endif
1496 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1497 [AC_MSG_RESULT([no]); have_gmp=no])
1498 fi
1500 # Check for the MPC header version.
1501 if test x"$have_gmp" = xyes ; then
1502 # Check for the recommended and required versions of MPC.
1503 AC_MSG_CHECKING([for the correct version of mpc.h])
1504 AC_TRY_COMPILE([#include <mpc.h>],[
1505 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1506 choke me
1507 #endif
1508 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1509 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1510 choke me
1511 #endif
1512 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1513 [AC_MSG_RESULT([no]); have_gmp=no])
1514 fi
1516 # Now check the MPFR library.
1517 if test x"$have_gmp" = xyes; then
1518 saved_LIBS="$LIBS"
1519 LIBS="$LIBS $gmplibs"
1520 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1521 AC_TRY_LINK([#include <mpc.h>],[
1522 mpfr_t n;
1523 mpfr_t x;
1524 mpc_t c;
1525 int t;
1526 mpfr_init (n);
1527 mpfr_init (x);
1528 mpfr_atan2 (n, n, x, GMP_RNDN);
1529 mpfr_erfc (n, x, GMP_RNDN);
1530 mpfr_subnormalize (x, t, GMP_RNDN);
1531 mpfr_clear(n);
1532 mpfr_clear(x);
1533 mpc_init2 (c, 53);
1534 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1535 mpc_cosh (c, c, MPC_RNDNN);
1536 mpc_pow (c, c, c, MPC_RNDNN);
1537 mpc_acosh (c, c, MPC_RNDNN);
1538 mpc_clear (c);
1539 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1540 LIBS="$saved_LIBS"
1541 fi
1543 CFLAGS="$saved_CFLAGS"
1545 # The library versions listed in the error message below should match
1546 # the HARD-minimums enforced above.
1547 if test x$have_gmp != xyes; then
1548 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1549 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1550 their locations. Source code for these libraries can be found at
1551 their respective hosting sites as well as at
1552 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1553 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1554 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1555 make sure that you have installed both the libraries and the header
1556 files. They may be located in separate packages.])
1557 fi
1558 fi
1560 # Flags needed for both GMP, MPFR and/or MPC.
1561 AC_SUBST(gmplibs)
1562 AC_SUBST(gmpinc)
1563 AC_SUBST(extra_mpfr_configure_flags)
1564 AC_SUBST(extra_mpc_gmp_configure_flags)
1565 AC_SUBST(extra_mpc_mpfr_configure_flags)
1566 AC_SUBST(extra_isl_gmp_configure_flags)
1568 # Allow host libstdc++ to be specified for static linking with PPL.
1569 AC_ARG_WITH(host-libstdcxx,
1570 [AS_HELP_STRING([--with-host-libstdcxx=L],
1571 [use linker arguments L to link with libstdc++
1572 when linking with PPL])])
1574 case $with_host_libstdcxx in
1575 no|yes)
1576 AC_MSG_ERROR([-with-host-libstdcxx needs an argument])
1577 ;;
1578 esac
1580 # Libraries to use for stage1 or when not bootstrapping.
1581 AC_ARG_WITH(stage1-libs,
1582 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1583 [if test "$withval" = "no" -o "$withval" = "yes"; then
1584 stage1_libs=
1585 else
1586 stage1_libs=$withval
1587 fi],
1588 [stage1_libs=$with_host_libstdcxx])
1589 AC_SUBST(stage1_libs)
1591 # Linker flags to use for stage1 or when not bootstrapping.
1592 AC_ARG_WITH(stage1-ldflags,
1593 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1594 [if test "$withval" = "no" -o "$withval" = "yes"; then
1595 stage1_ldflags=
1596 else
1597 stage1_ldflags=$withval
1598 fi],
1599 [stage1_ldflags=
1600 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1601 # if supported. But if the user explicitly specified the libraries to use,
1602 # trust that they are doing what they want.
1603 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1604 stage1_ldflags="-static-libstdc++ -static-libgcc"
1605 fi])
1606 AC_SUBST(stage1_ldflags)
1608 # Libraries to use for stage2 and later builds. This defaults to the
1609 # argument passed to --with-host-libstdcxx.
1610 AC_ARG_WITH(boot-libs,
1611 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1612 [if test "$withval" = "no" -o "$withval" = "yes"; then
1613 poststage1_libs=
1614 else
1615 poststage1_libs=$withval
1616 fi],
1617 [poststage1_libs=$with_host_libstdcxx])
1618 AC_SUBST(poststage1_libs)
1620 # Linker flags to use for stage2 and later builds.
1621 AC_ARG_WITH(boot-ldflags,
1622 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1623 [linker flags for stage2 and later])],
1624 [if test "$withval" = "no" -o "$withval" = "yes"; then
1625 poststage1_ldflags=
1626 else
1627 poststage1_ldflags=$withval
1628 fi],
1629 [poststage1_ldflags=
1630 # In stages 2 and 3, default to linking libstdc++ and libgcc
1631 # statically. But if the user explicitly specified the libraries to
1632 # use, trust that they are doing what they want.
1633 if test "$poststage1_libs" = ""; then
1634 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1635 fi])
1636 AC_SUBST(poststage1_ldflags)
1638 # GCC GRAPHITE dependences, ISL and CLOOG which in turn requires ISL.
1639 # Basic setup is inlined here, actual checks are in config/cloog.m4 and
1640 # config/isl.m4
1642 AC_ARG_WITH(cloog,
1643 [AS_HELP_STRING(
1644 [--with-cloog=PATH],
1645 [Specify prefix directory for the installed CLooG-ISL package.
1646 Equivalent to --with-cloog-include=PATH/include
1647 plus --with-cloog-lib=PATH/lib])])
1648 AC_ARG_WITH(isl,
1649 [AS_HELP_STRING(
1650 [--with-isl=PATH],
1651 [Specify prefix directory for the installed ISL package.
1652 Equivalent to --with-isl-include=PATH/include
1653 plus --with-isl-lib=PATH/lib])])
1655 # Treat --without-isl as a request to disable
1656 # GRAPHITE support and skip all following checks.
1657 if test "x$with_isl" != "xno"; then
1658 # Check for ISL
1659 dnl Provide configure switches and initialize islinc & isllibs
1660 dnl with user input.
1661 ISL_INIT_FLAGS
1662 dnl The versions of ISL that work for Graphite
1663 ISL_CHECK_VERSION()
1664 dnl Only execute fail-action, if ISL has been requested.
1665 ISL_IF_FAILED([
1666 AC_MSG_ERROR([Unable to find a usable ISL. See config.log for details.])])
1668 if test "x$gcc_cv_isl" != "xno"; then
1669 # Check for CLOOG
1670 dnl Provide configure switches and initialize clooginc & clooglibs
1671 dnl with user input.
1672 CLOOG_INIT_FLAGS
1673 dnl The versions of CLooG that work for Graphite.
1674 CLOOG_CHECK_VERSION(0,18,1)
1676 dnl Only execute fail-action, if CLooG has been requested.
1677 CLOOG_IF_FAILED([
1678 AC_MSG_ERROR([Unable to find a usable CLooG. See config.log for details.])])
1679 fi
1680 fi
1682 # If the ISL check failed, disable builds of in-tree
1683 # variants of both ISL and CLooG
1684 if test "x$with_isl" = xno ||
1685 test "x$gcc_cv_isl" = xno; then
1686 noconfigdirs="$noconfigdirs cloog isl"
1687 islinc=
1688 clooginc=
1689 clooglibs=
1690 fi
1692 # If the CLooG check failed, disable builds of in-tree
1693 # variants of CLooG
1694 if test "x$with_cloog" = xno ||
1695 test "x$gcc_cv_cloog" = xno; then
1696 noconfigdirs="$noconfigdirs cloog isl"
1697 clooginc=
1698 clooglibs=
1699 fi
1701 AC_SUBST(isllibs)
1702 AC_SUBST(islinc)
1703 AC_SUBST(clooglibs)
1704 AC_SUBST(clooginc)
1706 # Check for LTO support.
1707 AC_ARG_ENABLE(lto,
1708 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1709 enable_lto=$enableval,
1710 enable_lto=yes; default_enable_lto=yes)
1712 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1713 build_lto_plugin=yes
1714 ],[if test x"$default_enable_lto" = x"yes" ; then
1715 case $target in
1716 *-apple-darwin9* | *-cygwin* | *-mingw*) ;;
1717 # On other non-ELF platforms, LTO has yet to be validated.
1718 *) enable_lto=no ;;
1719 esac
1720 else
1721 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1722 # It would also be nice to check the binutils support, but we don't
1723 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1724 # warn during gcc/ subconfigure; unless you're bootstrapping with
1725 # -flto it won't be needed until after installation anyway.
1726 case $target in
1727 *-cygwin* | *-mingw* | *-apple-darwin*) ;;
1728 *) if test x"$enable_lto" = x"yes"; then
1729 AC_MSG_ERROR([LTO support is not enabled for this target.])
1730 fi
1731 ;;
1732 esac
1733 fi
1734 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1735 # Build it unless LTO was explicitly disabled.
1736 case $target in
1737 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1738 *) ;;
1739 esac
1740 ])
1742 AC_ARG_ENABLE(linker-plugin-configure-flags,
1743 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1744 [additional flags for configuring linker plugins @<:@none@:>@])],
1745 extra_linker_plugin_configure_flags=$enableval,
1746 extra_linker_plugin_configure_flags=)
1747 AC_SUBST(extra_linker_plugin_configure_flags)
1748 AC_ARG_ENABLE(linker-plugin-flags,
1749 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1750 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1751 extra_linker_plugin_flags=$enableval,
1752 extra_linker_plugin_flags=)
1753 AC_SUBST(extra_linker_plugin_flags)
1756 # By default, C and C++ are the only stage 1 languages.
1757 stage1_languages=,c,
1759 # Target libraries that we bootstrap.
1760 bootstrap_target_libs=,target-libgcc,
1762 # Figure out what language subdirectories are present.
1763 # Look if the user specified --enable-languages="..."; if not, use
1764 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1765 # go away some day.
1766 # NB: embedded tabs in this IF block -- do not untabify
1767 if test -d ${srcdir}/gcc; then
1768 if test x"${enable_languages+set}" != xset; then
1769 if test x"${LANGUAGES+set}" = xset; then
1770 enable_languages="${LANGUAGES}"
1771 echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1772 else
1773 enable_languages=all
1774 fi
1775 else
1776 if test x"${enable_languages}" = x ||
1777 test x"${enable_languages}" = xyes;
1778 then
1779 echo configure.in: --enable-languages needs at least one language argument 1>&2
1780 exit 1
1781 fi
1782 fi
1783 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1785 # 'f95' is the old name for the 'fortran' language. We issue a warning
1786 # and make the substitution.
1787 case ,${enable_languages}, in
1788 *,f95,*)
1789 echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1790 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1791 ;;
1792 esac
1794 # If bootstrapping, C++ must be enabled.
1795 case ",$enable_languages,:$enable_bootstrap" in
1796 *,c++,*:*) ;;
1797 *:yes)
1798 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1799 enable_languages="${enable_languages},c++"
1800 else
1801 AC_MSG_ERROR([bootstrapping requires c++ sources])
1802 fi
1803 ;;
1804 esac
1806 # First scan to see if an enabled language requires some other language.
1807 # We assume that a given config-lang.in will list all the language
1808 # front ends it requires, even if some are required indirectly.
1809 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1810 case ${lang_frag} in
1811 ..) ;;
1812 # The odd quoting in the next line works around
1813 # an apparent bug in bash 1.12 on linux.
1814 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1815 *)
1816 # From the config-lang.in, get $language, $lang_requires, and
1817 # $lang_requires_boot_languages.
1818 language=
1819 lang_requires=
1820 lang_requires_boot_languages=
1821 . ${lang_frag}
1822 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1823 case ,${enable_languages}, in
1824 *,$other,*) ;;
1825 *,all,*) ;;
1826 *,$language,*)
1827 echo " \`$other' language required by \`$language'; enabling" 1>&2
1828 enable_languages="${enable_languages},${other}"
1829 ;;
1830 esac
1831 done
1832 for other in ${lang_requires_boot_languages} ; do
1833 if test "$other" != "c"; then
1834 case ,${enable_stage1_languages}, in
1835 *,$other,*) ;;
1836 *,all,*) ;;
1837 *)
1838 case ,${enable_languages}, in
1839 *,$language,*)
1840 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1841 enable_stage1_languages="$enable_stage1_languages,${other}"
1842 ;;
1843 esac
1844 ;;
1845 esac
1846 fi
1847 done
1848 ;;
1849 esac
1850 done
1852 new_enable_languages=,c,
1854 # If LTO is enabled, add the LTO front end.
1855 extra_host_libiberty_configure_flags=
1856 if test "$enable_lto" = "yes" ; then
1857 case ,${enable_languages}, in
1858 *,lto,*) ;;
1859 *) enable_languages="${enable_languages},lto" ;;
1860 esac
1861 if test "${build_lto_plugin}" = "yes" ; then
1862 configdirs="$configdirs lto-plugin"
1863 extra_host_libiberty_configure_flags=--enable-shared
1864 fi
1865 fi
1866 AC_SUBST(extra_host_libiberty_configure_flags)
1868 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1869 potential_languages=,c,
1871 enabled_target_libs=
1872 disabled_target_libs=
1874 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1875 case ${lang_frag} in
1876 ..) ;;
1877 # The odd quoting in the next line works around
1878 # an apparent bug in bash 1.12 on linux.
1879 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1880 *)
1881 # From the config-lang.in, get $language, $target_libs,
1882 # $lang_dirs, $boot_language, and $build_by_default
1883 language=
1884 target_libs=
1885 lang_dirs=
1886 subdir_requires=
1887 boot_language=no
1888 build_by_default=yes
1889 . ${lang_frag}
1890 if test x${language} = x; then
1891 echo "${lang_frag} doesn't set \$language." 1>&2
1892 exit 1
1893 fi
1895 if test "$language" = "c++"; then
1896 boot_language=yes
1897 fi
1899 add_this_lang=no
1900 case ,${enable_languages}, in
1901 *,${language},*)
1902 # Language was explicitly selected; include it
1903 # unless it is C, which is enabled by default.
1904 if test "$language" != "c"; then
1905 add_this_lang=yes
1906 fi
1907 ;;
1908 *,all,*)
1909 # 'all' was selected, select it if it is a default language
1910 if test "$language" != "c"; then
1911 add_this_lang=${build_by_default}
1912 fi
1913 ;;
1914 esac
1916 # Disable languages that need other directories if these aren't available.
1917 for i in $subdir_requires; do
1918 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1919 case ,${enable_languages}, in
1920 *,${language},*)
1921 # Specifically requested language; tell them.
1922 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1923 ;;
1924 *)
1925 # Silently disable.
1926 add_this_lang=unsupported
1927 ;;
1928 esac
1929 done
1931 # Disable Ada if no preexisting GNAT is available.
1932 case ,${enable_languages},:${language}:${have_gnat} in
1933 *,${language},*:ada:no)
1934 # Specifically requested language; tell them.
1935 AC_MSG_ERROR([GNAT is required to build $language])
1936 ;;
1937 *:ada:no)
1938 # Silently disable.
1939 add_this_lang=unsupported
1940 ;;
1941 esac
1943 # Disable a language that is unsupported by the target.
1944 case " $unsupported_languages " in
1945 *" $language "*)
1946 add_this_lang=unsupported
1947 ;;
1948 esac
1950 case $add_this_lang in
1951 unsupported)
1952 # Remove language-dependent dirs.
1953 disabled_target_libs="$disabled_target_libs $target_libs"
1954 noconfigdirs="$noconfigdirs $lang_dirs"
1955 ;;
1956 no)
1957 # Remove language-dependent dirs; still show language as supported.
1958 disabled_target_libs="$disabled_target_libs $target_libs"
1959 noconfigdirs="$noconfigdirs $lang_dirs"
1960 potential_languages="${potential_languages}${language},"
1961 ;;
1962 yes)
1963 new_enable_languages="${new_enable_languages}${language},"
1964 potential_languages="${potential_languages}${language},"
1965 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1966 enabled_target_libs="$enabled_target_libs $target_libs"
1967 case "${boot_language}:,$enable_stage1_languages," in
1968 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
1969 # Add to (comma-separated) list of stage 1 languages.
1970 case ",$stage1_languages," in
1971 *,$language,* | ,yes, | ,all,) ;;
1972 *) stage1_languages="${stage1_languages}${language}," ;;
1973 esac
1974 # We need to bootstrap any supporting libraries.
1975 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
1976 ;;
1977 esac
1978 ;;
1979 esac
1980 ;;
1981 esac
1982 done
1984 # Add target libraries which are only needed for disabled languages
1985 # to noconfigdirs.
1986 if test -n "$disabled_target_libs"; then
1987 for dir in $disabled_target_libs; do
1988 case " $enabled_target_libs " in
1989 *" ${dir} "*) ;;
1990 *) noconfigdirs="$noconfigdirs $dir" ;;
1991 esac
1992 done
1993 fi
1995 AC_ARG_ENABLE(stage1-languages,
1996 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
1997 [choose additional languages to build during
1998 stage1. Mostly useful for compiler development])],
1999 [case ,${enable_stage1_languages}, in
2000 ,no,|,,)
2001 # Set it to something that will have no effect in the loop below
2002 enable_stage1_languages=c ;;
2003 ,yes,)
2004 enable_stage1_languages=`echo $new_enable_languages | \
2005 sed -e "s/^,//" -e "s/,$//" ` ;;
2006 *,all,*)
2007 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2008 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2009 esac
2011 # Add "good" languages from enable_stage1_languages to stage1_languages,
2012 # while "bad" languages go in missing_languages. Leave no duplicates.
2013 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2014 case $potential_languages in
2015 *,$i,*)
2016 case $stage1_languages in
2017 *,$i,*) ;;
2018 *) stage1_languages="$stage1_languages$i," ;;
2019 esac ;;
2020 *)
2021 case $missing_languages in
2022 *,$i,*) ;;
2023 *) missing_languages="$missing_languages$i," ;;
2024 esac ;;
2025 esac
2026 done])
2028 # Remove leading/trailing commas that were added for simplicity
2029 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2030 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2031 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2032 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2034 if test "x$missing_languages" != x; then
2035 AC_MSG_ERROR([
2036 The following requested languages could not be built: ${missing_languages}
2037 Supported languages are: ${potential_languages}])
2038 fi
2039 if test "x$new_enable_languages" != "x$enable_languages"; then
2040 echo The following languages will be built: ${new_enable_languages}
2041 enable_languages="$new_enable_languages"
2042 fi
2044 AC_SUBST(stage1_languages)
2045 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2046 fi
2048 # Handle --disable-<component> generically.
2049 for dir in $configdirs $build_configdirs $target_configdirs ; do
2050 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2051 varname=`echo $dirname | sed -e s/+/_/g`
2052 if eval test x\${enable_${varname}} "=" xno ; then
2053 noconfigdirs="$noconfigdirs $dir"
2054 fi
2055 done
2057 # Check for Boehm's garbage collector
2058 AC_ARG_ENABLE(objc-gc,
2059 [AS_HELP_STRING([--enable-objc-gc],
2060 [enable use of Boehm's garbage collector with the
2061 GNU Objective-C runtime])],
2062 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
2063 *,objc,*:*:yes:*target-boehm-gc*)
2064 AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
2065 ;;
2066 esac])
2068 # Make sure we only build Boehm's garbage collector if required.
2069 case ,${enable_languages},:${enable_objc_gc} in
2070 *,objc,*:yes)
2071 # Keep target-boehm-gc if requested for Objective-C.
2072 ;;
2073 *)
2074 # Otherwise remove target-boehm-gc depending on target-libjava.
2075 if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
2076 noconfigdirs="$noconfigdirs target-boehm-gc"
2077 fi
2078 ;;
2079 esac
2081 # Disable libcilkrts, libitm, libsanitizer, libvtv if we're not building C++
2082 case ,${enable_languages}, in
2083 *,c++,*)
2084 # Disable libcilkrts, libitm, libsanitizer if we're not building libstdc++
2085 case "${noconfigdirs}" in
2086 *target-libstdc++-v3*)
2087 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer"
2088 ;;
2089 *) ;;
2090 esac
2091 ;;
2092 *)
2093 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer target-libvtv"
2094 ;;
2095 esac
2097 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2098 # $build_configdirs and $target_configdirs.
2099 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2101 notsupp=""
2102 for dir in . $skipdirs $noconfigdirs ; do
2103 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2104 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2105 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2106 if test -r $srcdir/$dirname/configure ; then
2107 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2108 true
2109 else
2110 notsupp="$notsupp $dir"
2111 fi
2112 fi
2113 fi
2114 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2115 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2116 if test -r $srcdir/$dirname/configure ; then
2117 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2118 true
2119 else
2120 notsupp="$notsupp $dir"
2121 fi
2122 fi
2123 fi
2124 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2125 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2126 if test -r $srcdir/$dirname/configure ; then
2127 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2128 true
2129 else
2130 notsupp="$notsupp $dir"
2131 fi
2132 fi
2133 fi
2134 done
2136 # Quietly strip out all directories which aren't configurable in this tree.
2137 # This relies on all configurable subdirectories being autoconfiscated, which
2138 # is now the case.
2139 build_configdirs_all="$build_configdirs"
2140 build_configdirs=
2141 for i in ${build_configdirs_all} ; do
2142 j=`echo $i | sed -e s/build-//g`
2143 if test -f ${srcdir}/$j/configure ; then
2144 build_configdirs="${build_configdirs} $i"
2145 fi
2146 done
2148 configdirs_all="$configdirs"
2149 configdirs=
2150 for i in ${configdirs_all} ; do
2151 if test -f ${srcdir}/$i/configure ; then
2152 configdirs="${configdirs} $i"
2153 fi
2154 done
2156 target_configdirs_all="$target_configdirs"
2157 target_configdirs=
2158 for i in ${target_configdirs_all} ; do
2159 j=`echo $i | sed -e s/target-//g`
2160 if test -f ${srcdir}/$j/configure ; then
2161 target_configdirs="${target_configdirs} $i"
2162 fi
2163 done
2165 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2166 # so we have to add it after the preceding checks.
2167 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2168 then
2169 case " $configdirs " in
2170 *" libiberty "*)
2171 # If we can build libiberty, we can also build libiberty-linker-plugin.
2172 configdirs="$configdirs libiberty-linker-plugin"
2173 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2174 --with-libiberty=../libiberty-linker-plugin";;
2175 *)
2176 AC_MSG_ERROR([libiberty missing]);;
2177 esac
2178 fi
2180 # Produce a warning message for the subdirs we can't configure.
2181 # This isn't especially interesting in the Cygnus tree, but in the individual
2182 # FSF releases, it's important to let people know when their machine isn't
2183 # supported by the one or two programs in a package.
2185 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2186 # If $appdirs is non-empty, at least one of those directories must still
2187 # be configured, or we error out. (E.g., if the gas release supports a
2188 # specified target in some subdirs but not the gas subdir, we shouldn't
2189 # pretend that all is well.)
2190 if test -n "$appdirs" ; then
2191 for dir in $appdirs ; do
2192 if test -r $dir/Makefile.in ; then
2193 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2194 appdirs=""
2195 break
2196 fi
2197 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2198 appdirs=""
2199 break
2200 fi
2201 fi
2202 done
2203 if test -n "$appdirs" ; then
2204 echo "*** This configuration is not supported by this package." 1>&2
2205 exit 1
2206 fi
2207 fi
2208 # Okay, some application will build, or we don't care to check. Still
2209 # notify of subdirs not getting built.
2210 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2211 echo " ${notsupp}" 1>&2
2212 echo " (Any other directories should still work fine.)" 1>&2
2213 fi
2215 case "$host" in
2216 *msdosdjgpp*)
2217 enable_gdbtk=no ;;
2218 esac
2220 # To find our prefix, in gcc_cv_tool_prefix.
2221 ACX_TOOL_DIRS
2223 copy_dirs=
2225 AC_ARG_WITH([build-sysroot],
2226 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2227 [use sysroot as the system root during the build])],
2228 [if test x"$withval" != x ; then
2229 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2230 fi],
2231 [SYSROOT_CFLAGS_FOR_TARGET=])
2232 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2234 AC_ARG_WITH([debug-prefix-map],
2235 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2236 [map A to B, C to D ... in debug information])],
2237 [if test x"$withval" != x; then
2238 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2239 for debug_map in $withval; do
2240 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2241 done
2242 fi],
2243 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2244 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2246 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2247 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2248 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2249 # We want to ensure that TARGET libraries (which we know are built with
2250 # gcc) are built with "-O2 -g", so include those options when setting
2251 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2252 if test "x$CFLAGS_FOR_TARGET" = x; then
2253 CFLAGS_FOR_TARGET=$CFLAGS
2254 case " $CFLAGS " in
2255 *" -O2 "*) ;;
2256 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2257 esac
2258 case " $CFLAGS " in
2259 *" -g "* | *" -g3 "*) ;;
2260 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2261 esac
2262 fi
2263 AC_SUBST(CFLAGS_FOR_TARGET)
2265 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2266 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2267 case " $CXXFLAGS " in
2268 *" -O2 "*) ;;
2269 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2270 esac
2271 case " $CXXFLAGS " in
2272 *" -g "* | *" -g3 "*) ;;
2273 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2274 esac
2275 fi
2276 AC_SUBST(CXXFLAGS_FOR_TARGET)
2278 AC_SUBST(LDFLAGS_FOR_TARGET)
2280 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2281 # the named directory are copied to $(tooldir)/sys-include.
2282 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2283 if test x${is_cross_compiler} = xno ; then
2284 echo 1>&2 '***' --with-headers is only supported when cross compiling
2285 exit 1
2286 fi
2287 if test x"${with_headers}" != xyes ; then
2288 x=${gcc_cv_tool_prefix}
2289 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2290 fi
2291 fi
2293 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2294 # the name directories are copied to $(tooldir)/lib. Multiple directories
2295 # are permitted.
2296 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2297 if test x${is_cross_compiler} = xno ; then
2298 echo 1>&2 '***' --with-libs is only supported when cross compiling
2299 exit 1
2300 fi
2301 if test x"${with_libs}" != xyes ; then
2302 # Copy the libraries in reverse order, so that files in the first named
2303 # library override files in subsequent libraries.
2304 x=${gcc_cv_tool_prefix}
2305 for l in ${with_libs}; do
2306 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2307 done
2308 fi
2309 fi
2311 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2312 #
2313 # This is done by determining whether or not the appropriate directory
2314 # is available, and by checking whether or not specific configurations
2315 # have requested that this magic not happen.
2316 #
2317 # The command line options always override the explicit settings in
2318 # configure.in, and the settings in configure.in override this magic.
2319 #
2320 # If the default for a toolchain is to use GNU as and ld, and you don't
2321 # want to do that, then you should use the --without-gnu-as and
2322 # --without-gnu-ld options for the configure script. Similarly, if
2323 # the default is to use the included zlib and you don't want to do that,
2324 # you should use the --with-system-zlib option for the configure script.
2326 if test x${use_gnu_as} = x &&
2327 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2328 with_gnu_as=yes
2329 extra_host_args="$extra_host_args --with-gnu-as"
2330 fi
2332 if test x${use_gnu_ld} = x &&
2333 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2334 with_gnu_ld=yes
2335 extra_host_args="$extra_host_args --with-gnu-ld"
2336 fi
2338 if test x${use_included_zlib} = x &&
2339 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2340 :
2341 else
2342 with_system_zlib=yes
2343 extra_host_args="$extra_host_args --with-system-zlib"
2344 fi
2346 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2347 # can detect this case.
2349 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2350 with_newlib=yes
2351 extra_host_args="$extra_host_args --with-newlib"
2352 fi
2354 # Handle ${copy_dirs}
2355 set fnord ${copy_dirs}
2356 shift
2357 while test $# != 0 ; do
2358 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2359 :
2360 else
2361 echo Copying $1 to $2
2363 # Use the install script to create the directory and all required
2364 # parent directories.
2365 if test -d $2 ; then
2366 :
2367 else
2368 echo >config.temp
2369 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2370 fi
2372 # Copy the directory, assuming we have tar.
2373 # FIXME: Should we use B in the second tar? Not all systems support it.
2374 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2376 # It is the responsibility of the user to correctly adjust all
2377 # symlinks. If somebody can figure out how to handle them correctly
2378 # here, feel free to add the code.
2380 echo $1 > $2/COPIED
2381 fi
2382 shift; shift
2383 done
2385 # Determine a target-dependent exec_prefix that the installed
2386 # gcc will search in. Keep this list sorted by triplet, with
2387 # the *-*-osname triplets last.
2388 md_exec_prefix=
2389 case "${target}" in
2390 i[[34567]]86-pc-msdosdjgpp*)
2391 md_exec_prefix=/dev/env/DJDIR/bin
2392 ;;
2393 *-*-hpux* | \
2394 *-*-nto-qnx* | \
2395 *-*-solaris2*)
2396 md_exec_prefix=/usr/ccs/bin
2397 ;;
2398 esac
2400 extra_arflags_for_target=
2401 extra_nmflags_for_target=
2402 extra_ranlibflags_for_target=
2403 target_makefile_frag=/dev/null
2404 case "${target}" in
2405 spu-*-*)
2406 target_makefile_frag="config/mt-spu"
2407 ;;
2408 mips*-sde-elf* | mips*-mti-elf*)
2409 target_makefile_frag="config/mt-sde"
2410 ;;
2411 mipsisa*-*-elfoabi*)
2412 target_makefile_frag="config/mt-mips-elfoabi"
2413 ;;
2414 mips*-*-*linux* | mips*-*-gnu*)
2415 target_makefile_frag="config/mt-mips-gnu"
2416 ;;
2417 nios2-*-elf*)
2418 target_makefile_frag="config/mt-nios2-elf"
2419 ;;
2420 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2421 target_makefile_frag="config/mt-gnu"
2422 ;;
2423 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2424 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2425 # commands to handle both 32-bit and 64-bit objects. These flags are
2426 # harmless if we're using GNU nm or ar.
2427 extra_arflags_for_target=" -X32_64"
2428 extra_nmflags_for_target=" -B -X32_64"
2429 ;;
2430 esac
2432 alphaieee_frag=/dev/null
2433 case $target in
2434 alpha*-*-*)
2435 # This just makes sure to use the -mieee option to build target libs.
2436 # This should probably be set individually by each library.
2437 alphaieee_frag="config/mt-alphaieee"
2438 ;;
2439 esac
2441 # If --enable-target-optspace always use -Os instead of -O2 to build
2442 # the target libraries, similarly if it is not specified, use -Os
2443 # on selected platforms.
2444 ospace_frag=/dev/null
2445 case "${enable_target_optspace}:${target}" in
2446 yes:*)
2447 ospace_frag="config/mt-ospace"
2448 ;;
2449 :d30v-*)
2450 ospace_frag="config/mt-d30v"
2451 ;;
2452 :m32r-* | :d10v-* | :fr30-*)
2453 ospace_frag="config/mt-ospace"
2454 ;;
2455 no:* | :*)
2456 ;;
2457 *)
2458 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2459 ;;
2460 esac
2462 # Some systems (e.g., one of the i386-aix systems the gas testers are
2463 # using) don't handle "\$" correctly, so don't use it here.
2464 tooldir='${exec_prefix}'/${target_noncanonical}
2465 build_tooldir=${tooldir}
2467 # Create a .gdbinit file which runs the one in srcdir
2468 # and tells GDB to look there for source files.
2470 if test -r ${srcdir}/.gdbinit ; then
2471 case ${srcdir} in
2472 .) ;;
2473 *) cat > ./.gdbinit <<EOF
2474 # ${NO_EDIT}
2475 dir ${srcdir}
2476 dir .
2477 source ${srcdir}/.gdbinit
2478 EOF
2479 ;;
2480 esac
2481 fi
2483 # Make sure that the compiler is able to generate an executable. If it
2484 # can't, we are probably in trouble. We don't care whether we can run the
2485 # executable--we might be using a cross compiler--we only care whether it
2486 # can be created. At this point the main configure script has set CC.
2487 we_are_ok=no
2488 echo "int main () { return 0; }" > conftest.c
2489 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2490 if test $? = 0 ; then
2491 if test -s conftest || test -s conftest.exe ; then
2492 we_are_ok=yes
2493 fi
2494 fi
2495 case $we_are_ok in
2496 no)
2497 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2498 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2499 rm -f conftest*
2500 exit 1
2501 ;;
2502 esac
2503 rm -f conftest*
2505 # Decide which environment variable is used to find dynamic libraries.
2506 case "${host}" in
2507 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2508 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2509 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2510 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2511 esac
2513 # On systems where the dynamic library environment variable is PATH,
2514 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2515 # built executables to PATH.
2516 if test "$RPATH_ENVVAR" = PATH; then
2517 GCC_SHLIB_SUBDIR=/shlib
2518 else
2519 GCC_SHLIB_SUBDIR=
2520 fi
2522 # Adjust the toplevel makefile according to whether bootstrap was selected.
2523 case $enable_bootstrap in
2524 yes)
2525 bootstrap_suffix=bootstrap
2526 BUILD_CONFIG=bootstrap-debug
2527 ;;
2528 no)
2529 bootstrap_suffix=no-bootstrap
2530 BUILD_CONFIG=
2531 ;;
2532 esac
2534 AC_MSG_CHECKING(for default BUILD_CONFIG)
2536 AC_ARG_WITH([build-config],
2537 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2538 [use config/NAME.mk build configuration])],
2539 [case $with_build_config in
2540 yes) with_build_config= ;;
2541 no) with_build_config= BUILD_CONFIG= ;;
2542 esac])
2544 if test "x${with_build_config}" != x; then
2545 BUILD_CONFIG=$with_build_config
2546 else
2547 case $BUILD_CONFIG in
2548 bootstrap-debug)
2549 if echo "int f (void) { return 0; }" > conftest.c &&
2550 ${CC} -c conftest.c &&
2551 mv conftest.o conftest.o.g0 &&
2552 ${CC} -c -g conftest.c &&
2553 mv conftest.o conftest.o.g &&
2554 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2555 :
2556 else
2557 BUILD_CONFIG=
2558 fi
2559 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2560 ;;
2561 esac
2562 fi
2563 AC_MSG_RESULT($BUILD_CONFIG)
2564 AC_SUBST(BUILD_CONFIG)
2566 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2567 AC_MSG_CHECKING([for --enable-vtable-verify])
2568 AC_ARG_ENABLE(vtable-verify,
2569 [ --enable-vtable-verify Enable vtable verification feature ],
2570 [case "$enableval" in
2571 yes) enable_vtable_verify=yes ;;
2572 no) enable_vtable_verify=no ;;
2573 *) enable_vtable_verify=no;;
2574 esac],
2575 [enable_vtable_verify=no])
2576 AC_MSG_RESULT($enable_vtable_verify)
2578 # Record target_configdirs and the configure arguments for target and
2579 # build configuration in Makefile.
2580 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2581 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2582 bootstrap_fixincludes=no
2584 # If we are building libgomp, bootstrap it.
2585 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2586 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2587 fi
2589 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2590 # or bootstrap-ubsan, bootstrap it.
2591 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2592 case "$BUILD_CONFIG" in
2593 *bootstrap-asan* | *bootstrap-ubsan* )
2594 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2595 bootstrap_fixincludes=yes
2596 ;;
2597 esac
2598 fi
2600 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2601 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2602 test "$enable_vtable_verify" != no; then
2603 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2604 fi
2606 # Determine whether gdb needs tk/tcl or not.
2607 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2608 # and in that case we want gdb to be built without tk. Ugh!
2609 # In fact I believe gdb is the *only* package directly dependent on tk,
2610 # so we should be able to put the 'maybe's in unconditionally and
2611 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2612 # 100% sure that that's safe though.
2614 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2615 case "$enable_gdbtk" in
2616 no)
2617 GDB_TK="" ;;
2618 yes)
2619 GDB_TK="${gdb_tk}" ;;
2620 *)
2621 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2622 # distro. Eventually someone will fix this and move Insight, nee
2623 # gdbtk to a separate directory.
2624 if test -d ${srcdir}/gdb/gdbtk ; then
2625 GDB_TK="${gdb_tk}"
2626 else
2627 GDB_TK=""
2628 fi
2629 ;;
2630 esac
2631 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2632 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2634 # Strip out unwanted targets.
2636 # While at that, we remove Makefiles if we were started for recursive
2637 # configuration, so that the top-level Makefile reconfigures them,
2638 # like we used to do when configure itself was recursive.
2640 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2641 # but now we're fixing up the Makefile ourselves with the additional
2642 # commands passed to AC_CONFIG_FILES. Use separate variables
2643 # extrasub-{build,host,target} not because there is any reason to split
2644 # the substitutions up that way, but only to remain below the limit of
2645 # 99 commands in a script, for HP-UX sed.
2646 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2648 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2649 yes:yes:*\ gold\ *:*,c++,*) ;;
2650 yes:yes:*\ gold\ *:*)
2651 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2652 ;;
2653 esac
2655 extrasub_build=
2656 for module in ${build_configdirs} ; do
2657 if test -z "${no_recursion}" \
2658 && test -f ${build_subdir}/${module}/Makefile; then
2659 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2660 rm -f ${build_subdir}/${module}/Makefile
2661 fi
2662 extrasub_build="$extrasub_build
2663 /^@if build-$module\$/d
2664 /^@endif build-$module\$/d
2665 /^@if build-$module-$bootstrap_suffix\$/d
2666 /^@endif build-$module-$bootstrap_suffix\$/d"
2667 done
2668 extrasub_host=
2669 for module in ${configdirs} ; do
2670 if test -z "${no_recursion}"; then
2671 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2672 if test -f ${file}; then
2673 echo 1>&2 "*** removing ${file} to force reconfigure"
2674 rm -f ${file}
2675 fi
2676 done
2677 fi
2678 case ${module},${bootstrap_fixincludes} in
2679 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2680 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2681 esac
2682 extrasub_host="$extrasub_host
2683 /^@if $module\$/d
2684 /^@endif $module\$/d
2685 /^@if $module-$host_bootstrap_suffix\$/d
2686 /^@endif $module-$host_bootstrap_suffix\$/d"
2687 done
2688 extrasub_target=
2689 for module in ${target_configdirs} ; do
2690 if test -z "${no_recursion}" \
2691 && test -f ${target_subdir}/${module}/Makefile; then
2692 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2693 rm -f ${target_subdir}/${module}/Makefile
2694 fi
2696 # We only bootstrap target libraries listed in bootstrap_target_libs.
2697 case $bootstrap_target_libs in
2698 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2699 *) target_bootstrap_suffix=no-bootstrap ;;
2700 esac
2702 extrasub_target="$extrasub_target
2703 /^@if target-$module\$/d
2704 /^@endif target-$module\$/d
2705 /^@if target-$module-$target_bootstrap_suffix\$/d
2706 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2707 done
2709 # Do the final fixup along with target modules.
2710 extrasub_target="$extrasub_target
2711 /^@if /,/^@endif /d"
2713 # Create the serialization dependencies. This uses a temporary file.
2715 AC_ARG_ENABLE([serial-configure],
2716 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2717 [force sequential configuration of
2718 sub-packages for the host, target or build
2719 machine, or all sub-packages])])
2721 case ${enable_serial_configure} in
2722 yes)
2723 enable_serial_build_configure=yes
2724 enable_serial_host_configure=yes
2725 enable_serial_target_configure=yes
2726 ;;
2727 esac
2729 # These force 'configure's to be done one at a time, to avoid problems
2730 # with contention over a shared config.cache.
2731 rm -f serdep.tmp
2732 echo '# serdep.tmp' > serdep.tmp
2733 olditem=
2734 test "x${enable_serial_build_configure}" = xyes &&
2735 for item in ${build_configdirs} ; do
2736 case ${olditem} in
2737 "") ;;
2738 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2739 esac
2740 olditem=${item}
2741 done
2742 olditem=
2743 test "x${enable_serial_host_configure}" = xyes &&
2744 for item in ${configdirs} ; do
2745 case ${olditem} in
2746 "") ;;
2747 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2748 esac
2749 olditem=${item}
2750 done
2751 olditem=
2752 test "x${enable_serial_target_configure}" = xyes &&
2753 for item in ${target_configdirs} ; do
2754 case ${olditem} in
2755 "") ;;
2756 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2757 esac
2758 olditem=${item}
2759 done
2760 serialization_dependencies=serdep.tmp
2761 AC_SUBST_FILE(serialization_dependencies)
2763 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2764 # target, nonopt, and variable assignments. These are the ones we
2765 # might not want to pass down to subconfigures. The exception being
2766 # --cache-file=/dev/null, which is used to turn off the use of cache
2767 # files altogether, and which should be passed on to subconfigures.
2768 # Also strip program-prefix, program-suffix, and program-transform-name,
2769 # so that we can pass down a consistent program-transform-name.
2770 baseargs=
2771 tbaseargs=
2772 keep_next=no
2773 skip_next=no
2774 eval "set -- $ac_configure_args"
2775 for ac_arg
2776 do
2777 if test X"$skip_next" = X"yes"; then
2778 skip_next=no
2779 continue
2780 fi
2781 if test X"$keep_next" = X"yes"; then
2782 case $ac_arg in
2783 *\'*)
2784 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2785 esac
2786 baseargs="$baseargs '$ac_arg'"
2787 tbaseargs="$tbaseargs '$ac_arg'"
2788 keep_next=no
2789 continue
2790 fi
2792 # Handle separated arguments. Based on the logic generated by
2793 # autoconf 2.59.
2794 case $ac_arg in
2795 *=* | --config-cache | -C | -disable-* | --disable-* \
2796 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2797 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2798 | -with-* | --with-* | -without-* | --without-* | --x)
2799 separate_arg=no
2800 ;;
2801 -*)
2802 separate_arg=yes
2803 ;;
2804 *)
2805 separate_arg=no
2806 ;;
2807 esac
2809 skip_targ=no
2810 case $ac_arg in
2811 changequote(,)
2812 --with-* | --without-*)
2813 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2815 case $libopt in
2816 *[-_]include)
2817 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2818 ;;
2819 *[-_]lib)
2820 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2821 ;;
2822 *)
2823 lib=$libopt
2824 ;;
2825 esac
2826 changequote([,])
2828 case $lib in
2829 mpc | mpfr | gmp | isl | cloog)
2830 # If we're processing --with-$lib, --with-$lib-include or
2831 # --with-$lib-lib, for one of the libs above, and target is
2832 # different from host, don't pass the current argument to any
2833 # target library's configure.
2834 if test x$is_cross_compiler = xyes; then
2835 skip_targ=yes
2836 fi
2837 ;;
2838 esac
2839 ;;
2840 esac
2842 case "$ac_arg" in
2843 --cache-file=/dev/null | \
2844 -cache-file=/dev/null )
2845 # Handled here to avoid the test to skip args below.
2846 baseargs="$baseargs '$ac_arg'"
2847 tbaseargs="$tbaseargs '$ac_arg'"
2848 # Assert: $separate_arg should always be no.
2849 keep_next=$separate_arg
2850 ;;
2851 --no*)
2852 continue
2853 ;;
2854 --c* | \
2855 --sr* | \
2856 --ho* | \
2857 --bu* | \
2858 --t* | \
2859 --program-* | \
2860 -cache_file* | \
2861 -srcdir* | \
2862 -host* | \
2863 -build* | \
2864 -target* | \
2865 -program-prefix* | \
2866 -program-suffix* | \
2867 -program-transform-name* )
2868 skip_next=$separate_arg
2869 continue
2870 ;;
2871 -*)
2872 # An option. Add it.
2873 case $ac_arg in
2874 *\'*)
2875 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2876 esac
2877 baseargs="$baseargs '$ac_arg'"
2878 if test X"$skip_targ" = Xno; then
2879 tbaseargs="$tbaseargs '$ac_arg'"
2880 fi
2881 keep_next=$separate_arg
2882 ;;
2883 *)
2884 # Either a variable assignment, or a nonopt (triplet). Don't
2885 # pass it down; let the Makefile handle this.
2886 continue
2887 ;;
2888 esac
2889 done
2890 # Remove the initial space we just introduced and, as these will be
2891 # expanded by make, quote '$'.
2892 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2894 # Add in --program-transform-name, after --program-prefix and
2895 # --program-suffix have been applied to it. Autoconf has already
2896 # doubled dollar signs and backslashes in program_transform_name; we want
2897 # the backslashes un-doubled, and then the entire thing wrapped in single
2898 # quotes, because this will be expanded first by make and then by the shell.
2899 # Also, because we want to override the logic in subdir configure scripts to
2900 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2901 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2902 ${program_transform_name}
2903 EOF_SED
2904 gcc_transform_name=`cat conftestsed.out`
2905 rm -f conftestsed.out
2906 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2907 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
2908 if test "$silent" = yes; then
2909 baseargs="$baseargs --silent"
2910 tbaseargs="$tbaseargs --silent"
2911 fi
2912 baseargs="$baseargs --disable-option-checking"
2913 tbaseargs="$tbaseargs --disable-option-checking"
2915 # Record and document user additions to sub configure arguments.
2916 AC_ARG_VAR([build_configargs],
2917 [additional configure arguments for build directories])
2918 AC_ARG_VAR([host_configargs],
2919 [additional configure arguments for host directories])
2920 AC_ARG_VAR([target_configargs],
2921 [additional configure arguments for target directories])
2923 # For the build-side libraries, we just need to pretend we're native,
2924 # and not use the same cache file. Multilibs are neither needed nor
2925 # desired. We can't even use the same cache file for all build-side
2926 # libraries, as they're compiled differently; some with C, some with
2927 # C++ or with different feature-enabling options.
2928 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
2930 # For host modules, accept cache file option, or specification as blank.
2931 case "${cache_file}" in
2932 "") # empty
2933 cache_file_option="" ;;
2934 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2935 cache_file_option="--cache-file=${cache_file}" ;;
2936 *) # relative path
2937 cache_file_option="--cache-file=../${cache_file}" ;;
2938 esac
2940 # Host dirs don't like to share a cache file either, horribly enough.
2941 # This seems to be due to autoconf 2.5x stupidity.
2942 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
2944 target_configargs="$target_configargs ${tbaseargs}"
2946 # Passing a --with-cross-host argument lets the target libraries know
2947 # whether they are being built with a cross-compiler or being built
2948 # native. However, it would be better to use other mechanisms to make the
2949 # sorts of decisions they want to make on this basis. Please consider
2950 # this option to be deprecated. FIXME.
2951 if test x${is_cross_compiler} = xyes ; then
2952 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
2953 fi
2955 # Special user-friendly check for native x86_64-linux build, if
2956 # multilib is not explicitly enabled.
2957 case "$target:$have_compiler:$host:$target:$enable_multilib" in
2958 x86_64-*linux*:yes:$build:$build:)
2959 # Make sure we have a developement environment that handles 32-bit
2960 dev64=no
2961 echo "int main () { return 0; }" > conftest.c
2962 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2963 if test $? = 0 ; then
2964 if test -s conftest || test -s conftest.exe ; then
2965 dev64=yes
2966 fi
2967 fi
2968 rm -f conftest*
2969 if test x${dev64} != xyes ; then
2970 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.])
2971 fi
2972 ;;
2973 esac
2975 # Default to --enable-multilib.
2976 if test x${enable_multilib} = x ; then
2977 target_configargs="--enable-multilib ${target_configargs}"
2978 fi
2980 # Pass --with-newlib if appropriate. Note that target_configdirs has
2981 # changed from the earlier setting of with_newlib.
2982 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2983 target_configargs="--with-newlib ${target_configargs}"
2984 fi
2986 # Different target subdirs use different values of certain variables
2987 # (notably CXX). Worse, multilibs use *lots* of different values.
2988 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2989 # it doesn't automatically accept command-line overrides of them.
2990 # This means it's not safe for target subdirs to share a cache file,
2991 # which is disgusting, but there you have it. Hopefully this can be
2992 # fixed in future. It's still worthwhile to use a cache file for each
2993 # directory. I think.
2995 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2996 # We need to pass --target, as newer autoconf's requires consistency
2997 # for target_alias and gcc doesn't manage it consistently.
2998 target_configargs="--cache-file=./config.cache ${target_configargs}"
3000 FLAGS_FOR_TARGET=
3001 case " $target_configdirs " in
3002 *" newlib "*)
3003 case " $target_configargs " in
3004 *" --with-newlib "*)
3005 case "$target" in
3006 *-cygwin*)
3007 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3008 ;;
3009 esac
3011 # If we're not building GCC, don't discard standard headers.
3012 if test -d ${srcdir}/gcc; then
3013 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3015 if test "${build}" != "${host}"; then
3016 # On Canadian crosses, CC_FOR_TARGET will have already been set
3017 # by `configure', so we won't have an opportunity to add -Bgcc/
3018 # to it. This is right: we don't want to search that directory
3019 # for binaries, but we want the header files in there, so add
3020 # them explicitly.
3021 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3023 # Someone might think of using the pre-installed headers on
3024 # Canadian crosses, in case the installed compiler is not fully
3025 # compatible with the compiler being built. In this case, it
3026 # would be better to flag an error than risking having
3027 # incompatible object files being constructed. We can't
3028 # guarantee that an error will be flagged, but let's hope the
3029 # compiler will do it, when presented with incompatible header
3030 # files.
3031 fi
3032 fi
3034 case "${target}-${is_cross_compiler}" in
3035 i[[3456789]]86-*-linux*-no)
3036 # Here host == target, so we don't need to build gcc,
3037 # so we don't want to discard standard headers.
3038 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3039 ;;
3040 *)
3041 # If we're building newlib, use its generic headers last, but search
3042 # for any libc-related directories first (so make it the last -B
3043 # switch).
3044 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3046 # If we're building libgloss, find the startup file, simulator library
3047 # and linker script.
3048 case " $target_configdirs " in
3049 *" libgloss "*)
3050 # Look for startup file, simulator library and maybe linker script.
3051 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3052 # Look for libnosys.a in case the target needs it.
3053 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3054 # Most targets have the linker script in the source directory.
3055 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3056 ;;
3057 esac
3058 ;;
3059 esac
3060 ;;
3061 esac
3062 ;;
3063 esac
3065 case "$target" in
3066 x86_64-*mingw* | *-w64-mingw*)
3067 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3068 # however, use a symlink named 'mingw' in ${prefix} .
3069 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3070 ;;
3071 *-mingw*)
3072 # MinGW can't be handled as Cygwin above since it does not use newlib.
3073 FLAGS_FOR_TARGET=$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'
3074 ;;
3075 esac
3077 # Allow the user to override the flags for
3078 # our build compiler if desired.
3079 if test x"${build}" = x"${host}" ; then
3080 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3081 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3082 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3083 fi
3085 # On Canadian crosses, we'll be searching the right directories for
3086 # the previously-installed cross compiler, so don't bother to add
3087 # flags for directories within the install tree of the compiler
3088 # being built; programs in there won't even run.
3089 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3090 # Search for pre-installed headers if nothing else fits.
3091 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3092 fi
3094 if test "x${use_gnu_ld}" = x &&
3095 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3096 # Arrange for us to find uninstalled linker scripts.
3097 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3098 fi
3100 # Search for other target-specific linker scripts and such.
3101 case "${target}" in
3102 mep*)
3103 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3104 ;;
3105 esac
3107 # Makefile fragments.
3108 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3109 do
3110 eval fragval=\$$frag
3111 if test $fragval != /dev/null; then
3112 eval $frag=${srcdir}/$fragval
3113 fi
3114 done
3115 AC_SUBST_FILE(host_makefile_frag)
3116 AC_SUBST_FILE(target_makefile_frag)
3117 AC_SUBST_FILE(alphaieee_frag)
3118 AC_SUBST_FILE(ospace_frag)
3120 # Miscellanea: directories, flags, etc.
3121 AC_SUBST(RPATH_ENVVAR)
3122 AC_SUBST(GCC_SHLIB_SUBDIR)
3123 AC_SUBST(tooldir)
3124 AC_SUBST(build_tooldir)
3125 AC_SUBST(CONFIGURE_GDB_TK)
3126 AC_SUBST(GDB_TK)
3127 AC_SUBST(INSTALL_GDB_TK)
3129 # Build module lists & subconfigure args.
3130 AC_SUBST(build_configargs)
3131 AC_SUBST(build_configdirs)
3133 # Host module lists & subconfigure args.
3134 AC_SUBST(host_configargs)
3135 AC_SUBST(configdirs)
3136 AC_SUBST(target_configdirs)
3138 # Target module lists & subconfigure args.
3139 AC_SUBST(target_configargs)
3142 # Build tools.
3143 AC_SUBST(AR_FOR_BUILD)
3144 AC_SUBST(AS_FOR_BUILD)
3145 AC_SUBST(CC_FOR_BUILD)
3146 AC_SUBST(CFLAGS_FOR_BUILD)
3147 AC_SUBST(CXXFLAGS_FOR_BUILD)
3148 AC_SUBST(CXX_FOR_BUILD)
3149 AC_SUBST(DLLTOOL_FOR_BUILD)
3150 AC_SUBST(GCJ_FOR_BUILD)
3151 AC_SUBST(GFORTRAN_FOR_BUILD)
3152 AC_SUBST(GOC_FOR_BUILD)
3153 AC_SUBST(LDFLAGS_FOR_BUILD)
3154 AC_SUBST(LD_FOR_BUILD)
3155 AC_SUBST(NM_FOR_BUILD)
3156 AC_SUBST(RANLIB_FOR_BUILD)
3157 AC_SUBST(WINDMC_FOR_BUILD)
3158 AC_SUBST(WINDRES_FOR_BUILD)
3160 # Generate default definitions for YACC, M4, LEX and other programs that run
3161 # on the build machine. These are used if the Makefile can't locate these
3162 # programs in objdir.
3163 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3165 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3166 case " $build_configdirs " in
3167 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3168 esac
3170 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3171 case " $build_configdirs " in
3172 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3173 esac
3175 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3176 case " $build_configdirs " in
3177 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3178 esac
3180 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3181 case " $build_configdirs " in
3182 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3183 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3184 esac
3186 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3187 case " $build_configdirs " in
3188 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3189 esac
3191 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3192 case " $build_configdirs " in
3193 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3194 *)
3195 changequote(,)
3196 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3197 # higher, else we use the "missing" dummy.
3198 if ${MAKEINFO} --version \
3199 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3200 :
3201 else
3202 MAKEINFO="$MISSING makeinfo"
3203 fi
3204 ;;
3205 changequote([,])
3206 esac
3208 # FIXME: expect and dejagnu may become build tools?
3210 AC_CHECK_PROGS(EXPECT, expect, expect)
3211 case " $configdirs " in
3212 *" expect "*)
3213 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3214 ;;
3215 esac
3217 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3218 case " $configdirs " in
3219 *" dejagnu "*)
3220 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3221 ;;
3222 esac
3225 # Host tools.
3226 NCN_STRICT_CHECK_TOOLS(AR, ar)
3227 NCN_STRICT_CHECK_TOOLS(AS, as)
3228 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3229 NCN_STRICT_CHECK_TOOLS(LD, ld)
3230 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3231 NCN_STRICT_CHECK_TOOLS(NM, nm)
3232 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3233 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3234 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3235 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3236 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3237 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3238 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3239 AC_SUBST(CC)
3240 AC_SUBST(CXX)
3241 AC_SUBST(CFLAGS)
3242 AC_SUBST(CXXFLAGS)
3244 # Target tools.
3245 AC_ARG_WITH([build-time-tools],
3246 [AS_HELP_STRING([--with-build-time-tools=PATH],
3247 [use given path to find target tools during the build])],
3248 [case x"$withval" in
3249 x/*) ;;
3250 *)
3251 with_build_time_tools=
3252 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3253 ;;
3254 esac],
3255 [with_build_time_tools=])
3257 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3258 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3259 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3260 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
3261 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3262 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3264 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3265 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3266 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3267 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3268 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3269 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3270 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3271 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3272 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3273 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3274 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3275 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3277 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3279 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3280 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3281 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3282 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3283 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3284 [gcc/xg++ -B$$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$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3285 c++)
3286 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3287 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3288 c++)
3289 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3290 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3291 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
3292 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
3293 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3294 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3295 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3296 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3297 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3298 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3299 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3300 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3301 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3302 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3303 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3304 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3305 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3307 AC_SUBST(FLAGS_FOR_TARGET)
3308 AC_SUBST(RAW_CXX_FOR_TARGET)
3310 # Certain tools may need extra flags.
3311 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3312 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3313 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3315 # When building target libraries, except in a Canadian cross, we use
3316 # the same toolchain as the compiler we just built.
3317 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3318 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3319 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3320 if test $host = $build; then
3321 case " $configdirs " in
3322 *" gcc "*)
3323 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3324 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3325 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3326 ;;
3327 esac
3328 fi
3330 AC_SUBST(COMPILER_AS_FOR_TARGET)
3331 AC_SUBST(COMPILER_LD_FOR_TARGET)
3332 AC_SUBST(COMPILER_NM_FOR_TARGET)
3334 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3335 AC_ARG_ENABLE(maintainer-mode,
3336 [AS_HELP_STRING([--enable-maintainer-mode],
3337 [enable make rules and dependencies not useful
3338 (and sometimes confusing) to the casual installer])],
3339 USE_MAINTAINER_MODE=$enableval,
3340 USE_MAINTAINER_MODE=no)
3341 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3342 AC_SUBST(MAINTAINER_MODE_TRUE)
3343 AC_SUBST(MAINTAINER_MODE_FALSE)
3344 if test "$USE_MAINTAINER_MODE" = yes; then
3345 MAINTAINER_MODE_TRUE=
3346 MAINTAINER_MODE_FALSE='#'
3347 else
3348 MAINTAINER_MODE_TRUE='#'
3349 MAINTAINER_MODE_FALSE=
3350 fi
3351 MAINT=$MAINTAINER_MODE_TRUE
3352 AC_SUBST(MAINT)dnl
3354 # ---------------------
3355 # GCC bootstrap support
3356 # ---------------------
3358 # Stage specific cflags for build.
3359 stage1_cflags="-g"
3360 case $build in
3361 vax-*-*)
3362 case ${GCC} in
3363 yes) stage1_cflags="-g -Wa,-J" ;;
3364 *) stage1_cflags="-g -J" ;;
3365 esac ;;
3366 esac
3368 AC_SUBST(stage1_cflags)
3370 # Enable --enable-checking in stage1 of the compiler.
3371 AC_ARG_ENABLE(stage1-checking,
3372 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3373 [choose additional checking for stage1 of the compiler])],
3374 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3375 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3376 stage1_checking=--enable-checking=yes,types
3377 else
3378 stage1_checking=--enable-checking=$enable_checking,types
3379 fi])
3380 AC_SUBST(stage1_checking)
3382 # Enable -Werror in bootstrap stage2 and later.
3383 AC_ARG_ENABLE(werror,
3384 [AS_HELP_STRING([--enable-werror],
3385 [enable -Werror in bootstrap stage2 and later])], [],
3386 [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3387 enable_werror=yes
3388 else
3389 enable_werror=no
3390 fi])
3391 case ${enable_werror} in
3392 yes) stage2_werror_flag="--enable-werror-always" ;;
3393 *) stage2_werror_flag="" ;;
3394 esac
3395 AC_SUBST(stage2_werror_flag)
3397 # Enable --enable-host-shared.
3398 AC_ARG_ENABLE(host-shared,
3399 [AS_HELP_STRING([--enable-host-shared],
3400 [build host code as shared libraries])],
3401 [host_shared=$enableval], [host_shared=no])
3402 AC_SUBST(host_shared)
3404 # Specify what files to not compare during bootstrap.
3406 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3407 case "$target" in
3408 hppa*64*-*-hpux*) ;;
3409 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
3410 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3411 esac
3412 AC_SUBST(compare_exclusions)
3414 AC_CONFIG_FILES([Makefile],
3415 [sed "$extrasub_build" Makefile |
3416 sed "$extrasub_host" |
3417 sed "$extrasub_target" > mf$$
3418 mv -f mf$$ Makefile],
3419 [extrasub_build="$extrasub_build"
3420 extrasub_host="$extrasub_host"
3421 extrasub_target="$extrasub_target"])
3422 AC_OUTPUT