* configure.ac (enable_libgomp): Remove *-*-irix6*.
[deliverable/binutils-gdb.git] / configure.ac
1 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
2 # 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
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/>.
18
19 ##############################################################################
20 ### WARNING: this file contains embedded tabs. Do not run untabify on this file.
21
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/cloog.m4])
32
33 AC_INIT(move-if-change)
34 AC_PREREQ(2.64)
35 AC_DISABLE_OPTION_CHECKING
36
37 progname=$0
38 # if PWD already has a value, it is probably wrong.
39 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
40
41 # Export original configure arguments for use by sub-configures.
42 # Quote arguments with shell meta charatcers.
43 TOPLEVEL_CONFIGURE_ARGUMENTS=
44 set -- "$progname" "$@"
45 for ac_arg
46 do
47 case "$ac_arg" in
48 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
49 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
50 # if the argument is of the form -foo=baz, quote the baz part only
51 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
52 *) ;;
53 esac
54 # Add the quoted argument to the list.
55 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
56 done
57 if test "$silent" = yes; then
58 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
59 fi
60 # Remove the initial space we just introduced and, as these will be
61 # expanded by make, quote '$'.
62 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
63 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
64
65 # Find the build, host, and target systems.
66 ACX_NONCANONICAL_BUILD
67 ACX_NONCANONICAL_HOST
68 ACX_NONCANONICAL_TARGET
69
70 dnl Autoconf 2.5x and later will set a default program prefix if
71 dnl --target was used, even if it was the same as --host. Disable
72 dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
73 dnl to take effect.
74 test "$host_noncanonical" = "$target_noncanonical" &&
75 test "$program_prefix$program_suffix$program_transform_name" = \
76 NONENONEs,x,x, &&
77 program_transform_name=s,y,y,
78
79 AC_CANONICAL_SYSTEM
80 AC_ARG_PROGRAM
81
82 m4_pattern_allow([^AS_FOR_TARGET$])dnl
83 m4_pattern_allow([^AS_FOR_BUILD$])dnl
84
85 # Get 'install' or 'install-sh' and its variants.
86 AC_PROG_INSTALL
87 ACX_PROG_LN
88 AC_PROG_LN_S
89 AC_PROG_SED
90 AC_PROG_AWK
91
92 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
93
94 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
95 # a relative path.
96 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
97 INSTALL="${srcpwd}/install-sh -c"
98 fi
99
100 # Set srcdir to "." if that's what it is.
101 # This is important for multilib support.
102 pwd=`${PWDCMD-pwd}`
103 if test "${pwd}" = "${srcpwd}" ; then
104 srcdir=.
105 fi
106
107 topsrcdir=$srcpwd
108
109 extra_host_args=
110
111 ### To add a new directory to the tree, first choose whether it is a target
112 ### or a host dependent tool. Then put it into the appropriate list
113 ### (library or tools, host or target), doing a dependency sort.
114
115 # Subdirs will be configured in the order listed in build_configdirs,
116 # configdirs, or target_configdirs; see the serialization section below.
117
118 # Dependency sorting is only needed when *configuration* must be done in
119 # a particular order. In all cases a dependency should be specified in
120 # the Makefile, whether or not it's implicitly specified here.
121
122 # Double entries in build_configdirs, configdirs, or target_configdirs may
123 # cause circular dependencies and break everything horribly.
124
125 # these library is used by various programs built for the build
126 # environment
127 #
128 build_libs="build-libiberty"
129
130 # these tools are built for the build environment
131 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
132
133 # these libraries are used by various programs built for the host environment
134 #
135 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber gmp mpfr mpc ppl cloog libelf libiconv"
136
137 # these tools are built for the host environment
138 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
139 # know that we are building the simulator.
140 # binutils, gas and ld appear in that order because it makes sense to run
141 # "make check" in that particular order.
142 # If --enable-gold is used, "gold" may replace "ld".
143 host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools"
144
145 # libgcj represents the runtime libraries only used by gcj.
146 libgcj="target-libffi \
147 target-zlib \
148 target-libjava"
149
150 # these libraries are built for the target environment, and are built after
151 # the host libraries and the host tools (which may be a cross compiler)
152 # Note that libiberty is not a target library.
153 target_libraries="target-libgcc \
154 target-libgloss \
155 target-newlib \
156 target-libgomp \
157 target-libitm \
158 target-libstdc++-v3 \
159 target-libmudflap \
160 target-libssp \
161 target-libquadmath \
162 target-libgfortran \
163 target-boehm-gc \
164 ${libgcj} \
165 target-libobjc \
166 target-libada \
167 target-libgo"
168
169 # these tools are built using the target libraries, and are intended to
170 # run only in the target environment
171 #
172 # note: any program that *uses* libraries that are in the "target_libraries"
173 # list belongs in this list.
174 #
175 target_tools="target-rda"
176
177 ################################################################################
178
179 ## All tools belong in one of the four categories, and are assigned above
180 ## We assign ${configdirs} this way to remove all embedded newlines. This
181 ## is important because configure will choke if they ever get through.
182 ## ${configdirs} is directories we build using the host tools.
183 ## ${target_configdirs} is directories we build using the target tools.
184 configdirs=`echo ${host_libs} ${host_tools}`
185 target_configdirs=`echo ${target_libraries} ${target_tools}`
186 build_configdirs=`echo ${build_libs} ${build_tools}`
187
188 m4_divert_text([PARSE_ARGS],
189 [case $srcdir in
190 *" "*)
191 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
192 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
193 m4_popdef([AS_MESSAGE_LOG_FD])dnl
194 ;;
195 esac
196 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
197 ])
198
199 ################################################################################
200
201 srcname="gnu development package"
202
203 # This gets set non-empty for some net releases of packages.
204 appdirs=""
205
206 # Define is_cross_compiler to save on calls to 'test'.
207 is_cross_compiler=
208 if test x"${host}" = x"${target}" ; then
209 is_cross_compiler=no
210 else
211 is_cross_compiler=yes
212 fi
213
214 # Find the build and target subdir names.
215 GCC_TOPLEV_SUBDIRS
216 # Be sure to cover against remnants of an in-tree build.
217 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
218 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
219 Use a pristine source tree when building in a separate tree])
220 fi
221
222 # Skipdirs are removed silently.
223 skipdirs=
224 # Noconfigdirs are removed loudly.
225 noconfigdirs=""
226
227 use_gnu_ld=
228 # Make sure we don't let GNU ld be added if we didn't want it.
229 if test x$with_gnu_ld = xno ; then
230 use_gnu_ld=no
231 noconfigdirs="$noconfigdirs ld gold"
232 fi
233
234 use_gnu_as=
235 # Make sure we don't let GNU as be added if we didn't want it.
236 if test x$with_gnu_as = xno ; then
237 use_gnu_as=no
238 noconfigdirs="$noconfigdirs gas"
239 fi
240
241 use_included_zlib=
242 # Make sure we don't let ZLIB be added if we didn't want it.
243 if test x$with_system_zlib = xyes ; then
244 use_included_zlib=no
245 noconfigdirs="$noconfigdirs zlib"
246 fi
247
248 # some tools are so dependent upon X11 that if we're not building with X,
249 # it's not even worth trying to configure, much less build, that tool.
250
251 case ${with_x} in
252 yes | "") ;; # the default value for this tree is that X11 is available
253 no)
254 skipdirs="${skipdirs} tk itcl libgui"
255 # We won't be able to build gdbtk without X.
256 enable_gdbtk=no
257 ;;
258 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
259 esac
260
261 # Some are only suitable for cross toolchains.
262 # Remove these if host=target.
263 cross_only="target-libgloss target-newlib target-opcodes"
264
265 case $is_cross_compiler in
266 no) skipdirs="${skipdirs} ${cross_only}" ;;
267 esac
268
269 # If both --with-headers and --with-libs are specified, default to
270 # --without-newlib.
271 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
272 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
273 if test x"${with_newlib}" = x ; then
274 with_newlib=no
275 fi
276 fi
277
278 # Recognize --with-newlib/--without-newlib.
279 case ${with_newlib} in
280 no) skipdirs="${skipdirs} target-newlib" ;;
281 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
282 esac
283
284 # Handle --enable-gold, --enable-ld.
285 # --disable-gold [--enable-ld]
286 # Build only ld. Default option.
287 # --enable-gold [--enable-ld]
288 # Build both gold and ld. Install gold as "ld.gold", install ld
289 # as "ld.bfd" and "ld".
290 # --enable-gold=default [--enable-ld]
291 # Build both gold and ld. Install gold as "ld.gold" and "ld",
292 # install ld as "ld.bfd".
293 # --enable-gold[=default] --disable-ld
294 # Build only gold, which is then installed as both "ld.gold" and "ld".
295 # --enable-gold --enable-ld=default
296 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
297 # and ld.bfd).
298 # In other words, ld is default
299 # --enable-gold=default --enable-ld=default
300 # Error.
301
302 default_ld=
303 AC_ARG_ENABLE(gold,
304 [AS_HELP_STRING([[--enable-gold[=ARG]]],
305 [build gold @<:@ARG={default,yes,no}@:>@])],
306 ENABLE_GOLD=$enableval,
307 ENABLE_GOLD=no)
308 case "${ENABLE_GOLD}" in
309 yes|default)
310 # Check for ELF target.
311 is_elf=no
312 case "${target}" in
313 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
314 | *-*-linux* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
315 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
316 | *-*-solaris2* | *-*-nto*)
317 case "${target}" in
318 *-*-linux*aout* | *-*-linux*oldld*)
319 ;;
320 *)
321 is_elf=yes
322 ;;
323 esac
324 esac
325
326 if test "$is_elf" = "yes"; then
327 # Check for target supported by gold.
328 case "${target}" in
329 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-*)
330 configdirs="$configdirs gold"
331 if test x${ENABLE_GOLD} = xdefault; then
332 default_ld=gold
333 fi
334 ENABLE_GOLD=yes
335 ;;
336 esac
337 fi
338 ;;
339 no)
340 ;;
341 *)
342 AC_MSG_ERROR([invalid --enable-gold argument])
343 ;;
344 esac
345
346 AC_ARG_ENABLE(ld,
347 [AS_HELP_STRING([[--enable-ld[=ARG]]],
348 [build ld @<:@ARG={default,yes,no}@:>@])],
349 ENABLE_LD=$enableval,
350 ENABLE_LD=yes)
351
352 case "${ENABLE_LD}" in
353 default)
354 if test x${default_ld} != x; then
355 AC_MSG_ERROR([either gold or ld can be the default ld])
356 fi
357 ;;
358 yes)
359 ;;
360 no)
361 if test x${ENABLE_GOLD} != xyes; then
362 AC_MSG_WARN([neither ld nor gold are enabled])
363 fi
364 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
365 ;;
366 *)
367 AC_MSG_ERROR([invalid --enable-ld argument])
368 ;;
369 esac
370
371 # Configure extra directories which are host specific
372
373 case "${host}" in
374 *-cygwin*)
375 configdirs="$configdirs libtermcap" ;;
376 esac
377
378 # A target can indicate whether a language isn't supported for some reason.
379 # Only spaces may be used in this macro; not newlines or tabs.
380 unsupported_languages=
381
382 # Remove more programs from consideration, based on the host or
383 # target this usually means that a port of the program doesn't
384 # exist yet.
385
386 case "${host}" in
387 i[[3456789]]86-*-msdosdjgpp*)
388 noconfigdirs="$noconfigdirs tcl tk itcl"
389 ;;
390 esac
391
392
393 AC_ARG_ENABLE(libquadmath,
394 AS_HELP_STRING([--disable-libquadmath],
395 [do not build libquadmath directory]),
396 ENABLE_LIBQUADMATH=$enableval,
397 ENABLE_LIBQUADMATH=yes)
398 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
399 noconfigdirs="$noconfigdirs target-libquadmath"
400 fi
401
402
403 AC_ARG_ENABLE(libquadmath-support,
404 AS_HELP_STRING([--disable-libquadmath-support],
405 [disable libquadmath support for Fortran]),
406 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
407 ENABLE_LIBQUADMATH_SUPPORT=yes)
408 enable_libquadmath_support=
409 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
410 enable_libquadmath_support=no
411 fi
412
413
414 AC_ARG_ENABLE(libada,
415 [AS_HELP_STRING([--enable-libada], [build libada directory])],
416 ENABLE_LIBADA=$enableval,
417 ENABLE_LIBADA=yes)
418 if test "${ENABLE_LIBADA}" != "yes" ; then
419 noconfigdirs="$noconfigdirs gnattools"
420 fi
421
422 AC_ARG_ENABLE(libssp,
423 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
424 ENABLE_LIBSSP=$enableval,
425 ENABLE_LIBSSP=yes)
426
427 # Save it here so that, even in case of --enable-libgcj, if the Java
428 # front-end isn't enabled, we still get libgcj disabled.
429 libgcj_saved=$libgcj
430 case $enable_libgcj in
431 yes)
432 # If we reset it here, it won't get added to noconfigdirs in the
433 # target-specific build rules, so it will be forcibly enabled
434 # (unless the Java language itself isn't enabled).
435 libgcj=
436 ;;
437 no)
438 # Make sure we get it printed in the list of not supported target libs.
439 # Don't disable libffi, though, other languages use it.
440 noconfigdirs="$noconfigdirs `echo ${libgcj} | sed -e 's/target-libffi//'`"
441 # Clear libgcj_saved so that even if java is enabled libffi won't be
442 # built.
443 libgcj_saved=
444 ;;
445 esac
446
447 AC_ARG_ENABLE(static-libjava,
448 [AS_HELP_STRING([[--enable-static-libjava[=ARG]]],
449 [build static libjava @<:@default=no@:>@])],
450 ENABLE_STATIC_LIBJAVA=$enableval,
451 ENABLE_STATIC_LIBJAVA=no)
452 enable_static_libjava=
453 if test "${ENABLE_STATIC_LIBJAVA}" = "yes" ; then
454 enable_static_libjava=yes
455 fi
456
457 if test x$enable_static_libjava != xyes ; then
458 EXTRA_CONFIGARGS_LIBJAVA=--disable-static
459 fi
460 AC_SUBST(EXTRA_CONFIGARGS_LIBJAVA)
461
462 # Disable libmudflap on some systems.
463 if test x$enable_libmudflap = x ; then
464 case "${target}" in
465 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | bfin*-*-uclinux* | *-*-kopensolaris*-gnu)
466 # Enable libmudflap by default in GNU and friends.
467 ;;
468 *-*-freebsd*)
469 # Enable libmudflap by default in FreeBSD.
470 ;;
471 *)
472 # Disable it by default everywhere else.
473 noconfigdirs="$noconfigdirs target-libmudflap"
474 ;;
475 esac
476 fi
477
478 # Disable libgomp on non POSIX hosted systems.
479 if test x$enable_libgomp = x ; then
480 # Enable libgomp by default on hosted POSIX systems.
481 case "${target}" in
482 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
483 ;;
484 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
485 ;;
486 *-*-solaris2* | *-*-hpux11*)
487 ;;
488 *-*-darwin* | *-*-aix*)
489 ;;
490 *)
491 noconfigdirs="$noconfigdirs target-libgomp"
492 ;;
493 esac
494 fi
495
496 # Disable libitm on unsupported systems.
497 if test -d ${srcdir}/libitm; then
498 if test x$enable_libitm = x; then
499 AC_MSG_CHECKING([for libitm support])
500 if (srcdir=${srcdir}/libitm; \
501 . ${srcdir}/configure.tgt; \
502 test -n "$UNSUPPORTED")
503 then
504 AC_MSG_RESULT([no])
505 noconfigdirs="$noconfigdirs target-libitm"
506 else
507 AC_MSG_RESULT([yes])
508 fi
509 fi
510 fi
511
512 # Disable libssp for some systems.
513 case "${target}" in
514 avr-*-*)
515 # No hosted I/O support.
516 noconfigdirs="$noconfigdirs target-libssp"
517 ;;
518 powerpc-*-aix* | rs6000-*-aix*)
519 noconfigdirs="$noconfigdirs target-libssp"
520 ;;
521 rl78-*-*)
522 # Dereferencing -1 is a compile-time error
523 noconfigdirs="$noconfigdirs target-libssp"
524 ;;
525 esac
526
527 # Disable libstdc++-v3 for some systems.
528 case "${target}" in
529 *-*-vxworks*)
530 # VxWorks uses the Dinkumware C++ library.
531 noconfigdirs="$noconfigdirs target-libstdc++-v3"
532 ;;
533 arm*-wince-pe*)
534 # the C++ libraries don't build on top of CE's C libraries
535 noconfigdirs="$noconfigdirs target-libstdc++-v3"
536 ;;
537 avr-*-*)
538 noconfigdirs="$noconfigdirs target-libstdc++-v3"
539 ;;
540 esac
541
542 # Disable Fortran for some systems.
543 case "${target}" in
544 mmix-*-*)
545 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
546 unsupported_languages="$unsupported_languages fortran"
547 ;;
548 esac
549
550 # Disable Java if libffi is not supported.
551 case "${target}" in
552 alpha*-*-*)
553 ;;
554 arm*-*-*)
555 ;;
556 cris-*-*)
557 ;;
558 frv-*-*)
559 ;;
560 hppa*-*-linux*)
561 ;;
562 hppa*-*-hpux*)
563 ;;
564 i?86-*-*)
565 ;;
566 ia64*-*-*)
567 ;;
568 m32r*-*-*)
569 ;;
570 m68k-*-*)
571 ;;
572 mips*-*-rtems*)
573 ;;
574 mips*-*-linux*)
575 ;;
576 powerpc*-*-linux*)
577 ;;
578 powerpc-*-darwin*)
579 ;;
580 powerpc-*-aix* | rs6000-*-aix*)
581 ;;
582 powerpc-*-freebsd*)
583 ;;
584 powerpc64-*-freebsd*)
585 ;;
586 powerpc*-*-rtems*)
587 ;;
588 s390-*-* | s390x-*-*)
589 ;;
590 sh-*-* | sh[[34]]*-*-*)
591 ;;
592 sh64-*-* | sh5*-*-*)
593 ;;
594 sparc*-*-*)
595 ;;
596 x86_64-*-*)
597 ;;
598 *-*-*)
599 unsupported_languages="$unsupported_languages java"
600 ;;
601 esac
602
603 # Disable Java, libgcj or related libraries for some systems.
604 case "${target}" in
605 powerpc-*-darwin*)
606 ;;
607 i[[3456789]]86-*-darwin*)
608 ;;
609 x86_64-*-darwin[[912]]*)
610 ;;
611 *-*-darwin*)
612 noconfigdirs="$noconfigdirs ${libgcj}"
613 ;;
614 *-*-netware*)
615 noconfigdirs="$noconfigdirs ${libgcj}"
616 ;;
617 *-*-rtems*)
618 noconfigdirs="$noconfigdirs ${libgcj}"
619 ;;
620 *-*-tpf*)
621 noconfigdirs="$noconfigdirs ${libgcj}"
622 ;;
623 *-*-uclinux*)
624 noconfigdirs="$noconfigdirs ${libgcj}"
625 ;;
626 *-*-vxworks*)
627 noconfigdirs="$noconfigdirs ${libgcj}"
628 ;;
629 alpha*-*-*vms*)
630 noconfigdirs="$noconfigdirs ${libgcj}"
631 ;;
632 arm-wince-pe)
633 noconfigdirs="$noconfigdirs ${libgcj}"
634 ;;
635 arm*-*-symbianelf*)
636 noconfigdirs="$noconfigdirs ${libgcj}"
637 ;;
638 bfin-*-*)
639 noconfigdirs="$noconfigdirs target-boehm-gc"
640 ;;
641 cris-*-* | crisv32-*-*)
642 unsupported_languages="$unsupported_languages java"
643 case "${target}" in
644 *-*-linux*)
645 ;;
646 *) # See PR46792 regarding target-libffi.
647 noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
648 esac
649 ;;
650 hppa*64*-*-linux*)
651 # In this case, it's because the hppa64-linux target is for
652 # the kernel only at this point and has no libc, and thus no
653 # headers, crt*.o, etc., all of which are needed by these.
654 unsupported_languages="$unsupported_languages java"
655 ;;
656 hppa*64*-*-hpux*)
657 noconfigdirs="$noconfigdirs ${libgcj}"
658 ;;
659 hppa*-hp-hpux11*)
660 ;;
661 hppa*-*-hpux*)
662 # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
663 # build on HP-UX 10.20.
664 noconfigdirs="$noconfigdirs ${libgcj}"
665 ;;
666 ia64*-*-*vms*)
667 noconfigdirs="$noconfigdirs ${libgcj}"
668 ;;
669 i[[3456789]]86-w64-mingw*)
670 noconfigdirs="$noconfigdirs ${libgcj}"
671 ;;
672 i[[3456789]]86-*-mingw*)
673 noconfigdirs="$noconfigdirs ${libgcj}"
674 ;;
675 x86_64-*-mingw*)
676 noconfigdirs="$noconfigdirs ${libgcj}"
677 ;;
678 mmix-*-*)
679 noconfigdirs="$noconfigdirs target-libffi target-boehm-gc"
680 ;;
681 powerpc-*-aix*)
682 # copied from rs6000-*-* entry
683 noconfigdirs="$noconfigdirs ${libgcj}"
684 ;;
685 rs6000-*-aix*)
686 noconfigdirs="$noconfigdirs ${libgcj}"
687 ;;
688 *-*-lynxos*)
689 noconfigdirs="$noconfigdirs ${libgcj}"
690 ;;
691 esac
692
693 # Default libgloss CPU subdirectory.
694 libgloss_dir="$target_cpu"
695
696 case "${target}" in
697 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
698 libgloss_dir=wince
699 ;;
700 arm*-*-*)
701 libgloss_dir=arm
702 ;;
703 cris-*-* | crisv32-*-*)
704 libgloss_dir=cris
705 ;;
706 hppa*-*-*)
707 libgloss_dir=pa
708 ;;
709 i[[3456789]]86-*-*)
710 libgloss_dir=i386
711 ;;
712 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
713 libgloss_dir=m68hc11
714 ;;
715 m68*-*-* | fido-*-*)
716 libgloss_dir=m68k
717 ;;
718 mips*-*-*)
719 libgloss_dir=mips
720 ;;
721 powerpc*-*-*)
722 libgloss_dir=rs6000
723 ;;
724 sparc*-*-*)
725 libgloss_dir=sparc
726 ;;
727 esac
728
729 # Disable newlib and libgloss for various target OSes.
730 case "${target}" in
731 alpha*-dec-osf*)
732 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
733 ;;
734 i[[3456789]]86-*-linux*)
735 # This section makes it possible to build newlib natively on linux.
736 # If we are using a cross compiler then don't configure newlib.
737 if test x${is_cross_compiler} != xno ; then
738 noconfigdirs="$noconfigdirs target-newlib"
739 fi
740 noconfigdirs="$noconfigdirs target-libgloss"
741 # If we are not using a cross compiler, do configure newlib.
742 # Note however, that newlib will only be configured in this situation
743 # if the --with-newlib option has been given, because otherwise
744 # 'target-newlib' will appear in skipdirs.
745 ;;
746 i[[3456789]]86-*-rdos*)
747 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
748 ;;
749 sh*-*-pe|mips*-*-pe|arm-wince-pe)
750 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
751 ;;
752 sparc-*-sunos4*)
753 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
754 ;;
755 *-*-aix*)
756 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
757 ;;
758 *-*-beos*)
759 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
760 ;;
761 *-*-chorusos)
762 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
763 ;;
764 *-*-dragonfly*)
765 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
766 ;;
767 *-*-freebsd*)
768 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
769 ;;
770 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
771 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
772 ;;
773 *-*-lynxos*)
774 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
775 ;;
776 *-*-mingw*)
777 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
778 ;;
779 *-*-netbsd*)
780 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
781 ;;
782 *-*-netware*)
783 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
784 ;;
785 *-*-tpf*)
786 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
787 ;;
788 *-*-uclinux*)
789 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
790 ;;
791 *-*-vxworks*)
792 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
793 ;;
794 esac
795
796 case "${target}" in
797 *-*-chorusos)
798 ;;
799 powerpc-*-darwin*)
800 noconfigdirs="$noconfigdirs ld gas gdb gprof"
801 noconfigdirs="$noconfigdirs sim target-rda"
802 ;;
803 i[[3456789]]86-*-darwin*)
804 noconfigdirs="$noconfigdirs ld gprof"
805 noconfigdirs="$noconfigdirs sim target-rda"
806 ;;
807 x86_64-*-darwin[[912]]*)
808 noconfigdirs="$noconfigdirs ld gas gprof"
809 noconfigdirs="$noconfigdirs sim target-rda"
810 ;;
811 *-*-darwin*)
812 noconfigdirs="$noconfigdirs ld gas gdb gprof"
813 noconfigdirs="$noconfigdirs sim target-rda"
814 ;;
815 *-*-dragonfly*)
816 ;;
817 *-*-freebsd*)
818 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
819 && test -f /usr/local/include/gmp.h; then
820 with_gmp=/usr/local
821 fi
822 ;;
823 *-*-kaos*)
824 # Remove unsupported stuff on all kaOS configurations.
825 noconfigdirs="$noconfigdirs target-libgloss"
826 ;;
827 *-*-netbsd*)
828 ;;
829 *-*-netware*)
830 ;;
831 *-*-rtems*)
832 noconfigdirs="$noconfigdirs target-libgloss"
833 ;;
834 # The tpf target doesn't support gdb yet.
835 *-*-tpf*)
836 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
837 ;;
838 *-*-uclinux*)
839 noconfigdirs="$noconfigdirs target-rda"
840 ;;
841 *-*-vxworks*)
842 ;;
843 alpha*-dec-osf*)
844 # ld works, but does not support shared libraries.
845 # gas doesn't generate exception information.
846 noconfigdirs="$noconfigdirs gas ld"
847 ;;
848 alpha*-*-*vms*)
849 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
850 ;;
851 alpha*-*-*)
852 # newlib is not 64 bit ready
853 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
854 ;;
855 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
856 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
857 ;;
858 arc-*-*)
859 noconfigdirs="$noconfigdirs target-libgloss"
860 ;;
861 arm-*-pe*)
862 noconfigdirs="$noconfigdirs target-libgloss"
863 ;;
864 arm-*-riscix*)
865 noconfigdirs="$noconfigdirs ld target-libgloss"
866 ;;
867 c4x-*-* | tic4x-*-*)
868 noconfigdirs="$noconfigdirs target-libgloss"
869 ;;
870 tic54x-*-*)
871 noconfigdirs="$noconfigdirs target-libgloss gdb"
872 ;;
873 cr16-*-*)
874 noconfigdirs="$noconfigdirs gdb"
875 ;;
876 d10v-*-*)
877 noconfigdirs="$noconfigdirs target-libgloss"
878 ;;
879 d30v-*-*)
880 noconfigdirs="$noconfigdirs gdb"
881 ;;
882 fr30-*-elf*)
883 noconfigdirs="$noconfigdirs gdb"
884 ;;
885 moxie-*-*)
886 noconfigdirs="$noconfigdirs gprof"
887 ;;
888 h8300*-*-*)
889 noconfigdirs="$noconfigdirs target-libgloss"
890 ;;
891 h8500-*-*)
892 noconfigdirs="$noconfigdirs target-libgloss"
893 ;;
894 hppa1.1-*-osf* | hppa1.1-*-bsd* )
895 ;;
896 hppa*64*-*-linux*)
897 ;;
898 hppa*-*-linux*)
899 ;;
900 hppa*-*-*elf* | \
901 hppa*-*-lites* | \
902 hppa*-*-openbsd* | \
903 hppa*64*-*-*)
904 ;;
905 hppa*-hp-hpux11*)
906 noconfigdirs="$noconfigdirs ld"
907 ;;
908 hppa*-*-pro*)
909 ;;
910 hppa*-*-*)
911 noconfigdirs="$noconfigdirs ld"
912 ;;
913 i960-*-*)
914 noconfigdirs="$noconfigdirs gdb"
915 ;;
916 ia64*-*-elf*)
917 # No gdb support yet.
918 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
919 ;;
920 ia64*-**-hpux*)
921 # No ld support yet.
922 noconfigdirs="$noconfigdirs libgui itcl ld"
923 ;;
924 ia64*-*-*vms*)
925 # No ld support yet.
926 noconfigdirs="$noconfigdirs libgui itcl ld"
927 ;;
928 i[[3456789]]86-w64-mingw*)
929 ;;
930 i[[3456789]]86-*-mingw*)
931 target_configdirs="$target_configdirs target-winsup"
932 ;;
933 *-*-cygwin*)
934 target_configdirs="$target_configdirs target-libtermcap target-winsup"
935 noconfigdirs="$noconfigdirs target-libgloss"
936 # always build newlib if winsup directory is present.
937 if test -d "$srcdir/winsup/cygwin"; then
938 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
939 elif test -d "$srcdir/newlib"; then
940 echo "Warning: winsup/cygwin is missing so newlib can't be built."
941 fi
942 ;;
943 i[[3456789]]86-*-pe)
944 noconfigdirs="$noconfigdirs target-libgloss"
945 ;;
946 i[[3456789]]86-*-sco3.2v5*)
947 # The linker does not yet know about weak symbols in COFF,
948 # and is not configured to handle mixed ELF and COFF.
949 noconfigdirs="$noconfigdirs ld target-libgloss"
950 ;;
951 i[[3456789]]86-*-sco*)
952 noconfigdirs="$noconfigdirs gprof target-libgloss"
953 ;;
954 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
955 noconfigdirs="$noconfigdirs target-libgloss"
956 ;;
957 i[[3456789]]86-*-sysv4*)
958 noconfigdirs="$noconfigdirs target-libgloss"
959 ;;
960 i[[3456789]]86-*-beos*)
961 noconfigdirs="$noconfigdirs gdb"
962 ;;
963 i[[3456789]]86-*-rdos*)
964 noconfigdirs="$noconfigdirs gdb"
965 ;;
966 mmix-*-*)
967 noconfigdirs="$noconfigdirs gdb"
968 ;;
969 mt-*-*)
970 noconfigdirs="$noconfigdirs sim"
971 ;;
972 powerpc-*-aix*)
973 # copied from rs6000-*-* entry
974 noconfigdirs="$noconfigdirs gprof"
975 ;;
976 powerpc*-*-winnt* | powerpc*-*-pe*)
977 target_configdirs="$target_configdirs target-winsup"
978 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
979 # always build newlib.
980 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
981 ;;
982 # This is temporary until we can link against shared libraries
983 powerpcle-*-solaris*)
984 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
985 ;;
986 powerpc-*-beos*)
987 noconfigdirs="$noconfigdirs gdb"
988 ;;
989 rs6000-*-lynxos*)
990 noconfigdirs="$noconfigdirs gprof"
991 ;;
992 rs6000-*-aix*)
993 noconfigdirs="$noconfigdirs gprof"
994 ;;
995 rs6000-*-*)
996 noconfigdirs="$noconfigdirs gprof"
997 ;;
998 m68k-apollo-*)
999 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1000 ;;
1001 microblaze*)
1002 noconfigdirs="$noconfigdirs gprof"
1003 ;;
1004 mips*-sde-elf*)
1005 if test x$with_newlib = xyes; then
1006 noconfigdirs="$noconfigdirs gprof"
1007 fi
1008 ;;
1009 mips*-*-irix5*)
1010 noconfigdirs="$noconfigdirs gprof target-libgloss"
1011 ;;
1012 mips*-*-irix6*)
1013 noconfigdirs="$noconfigdirs gprof target-libgloss"
1014 ;;
1015 mips*-*-bsd*)
1016 noconfigdirs="$noconfigdirs gprof target-libgloss"
1017 ;;
1018 mips*-*-linux*)
1019 ;;
1020 mips*-*-*)
1021 noconfigdirs="$noconfigdirs gprof"
1022 ;;
1023 sh-*-* | sh64-*-*)
1024 case "${target}" in
1025 sh*-*-elf)
1026 ;;
1027 *)
1028 noconfigdirs="$noconfigdirs target-libgloss" ;;
1029 esac
1030 ;;
1031 sparc-*-sunos4*)
1032 if test x${is_cross_compiler} = xno ; then
1033 use_gnu_ld=no
1034 fi
1035 ;;
1036 tic6x-*-*)
1037 noconfigdirs="$noconfigdirs sim"
1038 ;;
1039 tilepro-*-* | tilegx-*-*)
1040 noconfigdirs="$noconfigdirs sim"
1041 ;;
1042 v810-*-*)
1043 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1044 ;;
1045 vax-*-*)
1046 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1047 ;;
1048 esac
1049
1050 # If we aren't building newlib, then don't build libgloss, since libgloss
1051 # depends upon some newlib header files.
1052 case "${noconfigdirs}" in
1053 *target-libgloss*) ;;
1054 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1055 esac
1056
1057 # Work in distributions that contain no compiler tools, like Autoconf.
1058 host_makefile_frag=/dev/null
1059 if test -d ${srcdir}/config ; then
1060 case "${host}" in
1061 i[[3456789]]86-*-msdosdjgpp*)
1062 host_makefile_frag="config/mh-djgpp"
1063 ;;
1064 *-cygwin*)
1065 ACX_CHECK_CYGWIN_CAT_WORKS
1066 host_makefile_frag="config/mh-cygwin"
1067 ;;
1068 *-mingw*)
1069 host_makefile_frag="config/mh-mingw"
1070 ;;
1071 *-interix*)
1072 host_makefile_frag="config/mh-interix"
1073 ;;
1074 hppa*-hp-hpux10*)
1075 host_makefile_frag="config/mh-pa-hpux10"
1076 ;;
1077 hppa*-hp-hpux*)
1078 host_makefile_frag="config/mh-pa"
1079 ;;
1080 hppa*-*)
1081 host_makefile_frag="config/mh-pa"
1082 ;;
1083 *-*-darwin*)
1084 host_makefile_frag="config/mh-darwin"
1085 ;;
1086 powerpc-*-aix*)
1087 host_makefile_frag="config/mh-ppc-aix"
1088 ;;
1089 rs6000-*-aix*)
1090 host_makefile_frag="config/mh-ppc-aix"
1091 ;;
1092 esac
1093 fi
1094
1095 if test "${build}" != "${host}" ; then
1096 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1097 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1098 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1099 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1100 GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
1101 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1102 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1103 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1104 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1105 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1106 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1107 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1108 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1109 else
1110 AR_FOR_BUILD="\$(AR)"
1111 AS_FOR_BUILD="\$(AS)"
1112 CC_FOR_BUILD="\$(CC)"
1113 CXX_FOR_BUILD="\$(CXX)"
1114 GCJ_FOR_BUILD="\$(GCJ)"
1115 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1116 GOC_FOR_BUILD="\$(GOC)"
1117 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1118 LD_FOR_BUILD="\$(LD)"
1119 NM_FOR_BUILD="\$(NM)"
1120 RANLIB_FOR_BUILD="\$(RANLIB)"
1121 WINDRES_FOR_BUILD="\$(WINDRES)"
1122 WINDMC_FOR_BUILD="\$(WINDMC)"
1123 fi
1124
1125 AC_PROG_CC
1126 AC_PROG_CXX
1127
1128 # We must set the default linker to the linker used by gcc for the correct
1129 # operation of libtool. If LD is not defined and we are using gcc, try to
1130 # set the LD default to the ld used by gcc.
1131 if test -z "$LD"; then
1132 if test "$GCC" = yes; then
1133 case $build in
1134 *-*-mingw*)
1135 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1136 *)
1137 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1138 esac
1139 case $gcc_prog_ld in
1140 # Accept absolute paths.
1141 [[\\/]* | [A-Za-z]:[\\/]*)]
1142 LD="$gcc_prog_ld" ;;
1143 esac
1144 fi
1145 fi
1146
1147 ACX_PROG_GNAT
1148 ACX_PROG_CMP_IGNORE_INITIAL
1149
1150 AC_ARG_ENABLE([bootstrap],
1151 [AS_HELP_STRING([--enable-bootstrap],
1152 [enable bootstrapping @<:@yes if native build@:>@])],,
1153 enable_bootstrap=default)
1154
1155 # Issue errors and warnings for invalid/strange bootstrap combinations.
1156 if test -r $srcdir/gcc/configure; then
1157 have_compiler=yes
1158 else
1159 have_compiler=no
1160 fi
1161
1162 case "$have_compiler:$host:$target:$enable_bootstrap" in
1163 *:*:*:no) ;;
1164
1165 # Default behavior. Enable bootstrap if we have a compiler
1166 # and we are in a native configuration.
1167 yes:$build:$build:default)
1168 enable_bootstrap=yes ;;
1169
1170 *:*:*:default)
1171 enable_bootstrap=no ;;
1172
1173 # We have a compiler and we are in a native configuration, bootstrap is ok
1174 yes:$build:$build:yes)
1175 ;;
1176
1177 # Other configurations, but we have a compiler. Assume the user knows
1178 # what he's doing.
1179 yes:*:*:yes)
1180 AC_MSG_WARN([trying to bootstrap a cross compiler])
1181 ;;
1182
1183 # No compiler: if they passed --enable-bootstrap explicitly, fail
1184 no:*:*:yes)
1185 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1186
1187 # Fail if wrong command line
1188 *)
1189 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1190 ;;
1191 esac
1192
1193 # See if we are building gcc with C++.
1194 AC_ARG_ENABLE(build-with-cxx,
1195 [AS_HELP_STRING([--enable-build-with-cxx],
1196 [build with C++ compiler instead of C compiler])],
1197 ENABLE_BUILD_WITH_CXX=$enableval,
1198 ENABLE_BUILD_WITH_CXX=no)
1199
1200 # Build stage1 with C and build stages 2 and 3 with C++.
1201 AC_ARG_ENABLE(build-poststage1-with-cxx,
1202 [AS_HELP_STRING([--enable-build-poststage1-with-cxx],
1203 [build stages 2 and 3 with C++, not C])],
1204 ENABLE_BUILD_POSTSTAGE1_WITH_CXX=$enableval,
1205 ENABLE_BUILD_POSTSTAGE1_WITH_CXX=yes)
1206
1207 # Used for setting $lt_cv_objdir
1208 _LT_CHECK_OBJDIR
1209
1210 # Check for GMP, MPFR and MPC
1211 gmplibs="-lmpc -lmpfr -lgmp"
1212 gmpinc=
1213 have_gmp=no
1214
1215 # Specify a location for mpc
1216 # check for this first so it ends up on the link line before mpfr.
1217 AC_ARG_WITH(mpc,
1218 [AS_HELP_STRING([--with-mpc=PATH],
1219 [specify prefix directory for installed MPC package.
1220 Equivalent to --with-mpc-include=PATH/include
1221 plus --with-mpc-lib=PATH/lib])])
1222 AC_ARG_WITH(mpc-include,
1223 [AS_HELP_STRING([--with-mpc-include=PATH],
1224 [specify directory for installed MPC include files])])
1225 AC_ARG_WITH(mpc-lib,
1226 [AS_HELP_STRING([--with-mpc-lib=PATH],
1227 [specify directory for the installed MPC library])])
1228
1229 if test "x$with_mpc" != x; then
1230 gmplibs="-L$with_mpc/lib $gmplibs"
1231 gmpinc="-I$with_mpc/include $gmpinc"
1232 fi
1233 if test "x$with_mpc_include" != x; then
1234 gmpinc="-I$with_mpc_include $gmpinc"
1235 fi
1236 if test "x$with_mpc_lib" != x; then
1237 gmplibs="-L$with_mpc_lib $gmplibs"
1238 fi
1239 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1240 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1241 gmpinc='-I$$s/mpc/src '"$gmpinc"
1242 # Do not test the mpc version. Assume that it is sufficient, since
1243 # it is in the source tree, and the library has not been built yet
1244 # but it would be included on the link line in the version check below
1245 # hence making the test fail.
1246 have_gmp=yes
1247 fi
1248
1249 # Specify a location for mpfr
1250 # check for this first so it ends up on the link line before gmp.
1251 AC_ARG_WITH(mpfr-dir,
1252 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1253 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1254 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1255
1256 AC_ARG_WITH(mpfr,
1257 [AS_HELP_STRING([--with-mpfr=PATH],
1258 [specify prefix directory for installed MPFR package.
1259 Equivalent to --with-mpfr-include=PATH/include
1260 plus --with-mpfr-lib=PATH/lib])])
1261 AC_ARG_WITH(mpfr-include,
1262 [AS_HELP_STRING([--with-mpfr-include=PATH],
1263 [specify directory for installed MPFR include files])])
1264 AC_ARG_WITH(mpfr-lib,
1265 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1266 [specify directory for the installed MPFR library])])
1267
1268 if test "x$with_mpfr" != x; then
1269 gmplibs="-L$with_mpfr/lib $gmplibs"
1270 gmpinc="-I$with_mpfr/include $gmpinc"
1271 fi
1272 if test "x$with_mpfr_include" != x; then
1273 gmpinc="-I$with_mpfr_include $gmpinc"
1274 fi
1275 if test "x$with_mpfr_lib" != x; then
1276 gmplibs="-L$with_mpfr_lib $gmplibs"
1277 fi
1278 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1279 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir $gmplibs"
1280 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1281 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir"
1282 # Do not test the mpfr version. Assume that it is sufficient, since
1283 # it is in the source tree, and the library has not been built yet
1284 # but it would be included on the link line in the version check below
1285 # hence making the test fail.
1286 have_gmp=yes
1287 fi
1288
1289 # Specify a location for gmp
1290 AC_ARG_WITH(gmp-dir,
1291 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1292 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1293 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1294
1295 AC_ARG_WITH(gmp,
1296 [AS_HELP_STRING([--with-gmp=PATH],
1297 [specify prefix directory for the installed GMP package.
1298 Equivalent to --with-gmp-include=PATH/include
1299 plus --with-gmp-lib=PATH/lib])])
1300 AC_ARG_WITH(gmp-include,
1301 [AS_HELP_STRING([--with-gmp-include=PATH],
1302 [specify directory for installed GMP include files])])
1303 AC_ARG_WITH(gmp-lib,
1304 [AS_HELP_STRING([--with-gmp-lib=PATH],
1305 [specify directory for the installed GMP library])])
1306
1307
1308 if test "x$with_gmp" != x; then
1309 gmplibs="-L$with_gmp/lib $gmplibs"
1310 gmpinc="-I$with_gmp/include $gmpinc"
1311 fi
1312 if test "x$with_gmp_include" != x; then
1313 gmpinc="-I$with_gmp_include $gmpinc"
1314 fi
1315 if test "x$with_gmp_lib" != x; then
1316 gmplibs="-L$with_gmp_lib $gmplibs"
1317 fi
1318 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1319 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1320 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1321 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1322 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1323 # Do not test the gmp version. Assume that it is sufficient, since
1324 # it is in the source tree, and the library has not been built yet
1325 # but it would be included on the link line in the version check below
1326 # hence making the test fail.
1327 have_gmp=yes
1328 fi
1329
1330 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1331 have_gmp=yes
1332 saved_CFLAGS="$CFLAGS"
1333 CFLAGS="$CFLAGS $gmpinc"
1334 # Check for the recommended and required versions of GMP.
1335 AC_MSG_CHECKING([for the correct version of gmp.h])
1336 AC_TRY_COMPILE([#include "gmp.h"],[
1337 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1338 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1339 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,0)
1340 choke me
1341 #endif
1342 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1343 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1344 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1345 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1346 choke me
1347 #endif
1348 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1349 [AC_MSG_RESULT([no]); have_gmp=no])
1350
1351 # If we have GMP, check the MPFR version.
1352 if test x"$have_gmp" = xyes; then
1353 # Check for the recommended and required versions of MPFR.
1354 AC_MSG_CHECKING([for the correct version of mpfr.h])
1355 AC_TRY_COMPILE([#include <gmp.h>
1356 #include <mpfr.h>],[
1357 #if MPFR_VERSION < MPFR_VERSION_NUM(2,3,1)
1358 choke me
1359 #endif
1360 ], [AC_TRY_COMPILE([#include <gmp.h>
1361 #include <mpfr.h>],[
1362 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1363 choke me
1364 #endif
1365 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1366 [AC_MSG_RESULT([no]); have_gmp=no])
1367 fi
1368
1369 # Check for the MPC header version.
1370 if test x"$have_gmp" = xyes ; then
1371 # Check for the recommended and required versions of MPC.
1372 AC_MSG_CHECKING([for the correct version of mpc.h])
1373 AC_TRY_COMPILE([#include <mpc.h>],[
1374 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1375 choke me
1376 #endif
1377 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1378 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1379 choke me
1380 #endif
1381 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1382 [AC_MSG_RESULT([no]); have_gmp=no])
1383 fi
1384
1385 # Now check the MPFR library.
1386 if test x"$have_gmp" = xyes; then
1387 saved_LIBS="$LIBS"
1388 LIBS="$LIBS $gmplibs"
1389 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1390 AC_TRY_LINK([#include <mpc.h>],[
1391 mpfr_t n;
1392 mpfr_t x;
1393 mpc_t c;
1394 int t;
1395 mpfr_init (n);
1396 mpfr_init (x);
1397 mpfr_atan2 (n, n, x, GMP_RNDN);
1398 mpfr_erfc (n, x, GMP_RNDN);
1399 mpfr_subnormalize (x, t, GMP_RNDN);
1400 mpfr_clear(n);
1401 mpfr_clear(x);
1402 mpc_init2 (c, 53);
1403 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1404 mpc_cosh (c, c, MPC_RNDNN);
1405 mpc_pow (c, c, c, MPC_RNDNN);
1406 mpc_acosh (c, c, MPC_RNDNN);
1407 mpc_clear (c);
1408 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1409 LIBS="$saved_LIBS"
1410 fi
1411
1412 CFLAGS="$saved_CFLAGS"
1413
1414 # The library versions listed in the error message below should match
1415 # the HARD-minimums enforced above.
1416 if test x$have_gmp != xyes; then
1417 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.3.1+ and MPC 0.8.0+.
1418 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1419 their locations. Source code for these libraries can be found at
1420 their respective hosting sites as well as at
1421 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1422 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1423 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1424 make sure that you have installed both the libraries and the header
1425 files. They may be located in separate packages.])
1426 fi
1427 fi
1428
1429 # Flags needed for both GMP, MPFR and/or MPC.
1430 AC_SUBST(gmplibs)
1431 AC_SUBST(gmpinc)
1432 AC_SUBST(extra_mpfr_configure_flags)
1433 AC_SUBST(extra_mpc_gmp_configure_flags)
1434 AC_SUBST(extra_mpc_mpfr_configure_flags)
1435
1436 # Allow host libstdc++ to be specified for static linking with PPL.
1437 AC_ARG_WITH(host-libstdcxx,
1438 [AS_HELP_STRING([--with-host-libstdcxx=L],
1439 [use linker arguments L to link with libstdc++
1440 when linking with PPL])])
1441
1442 case $with_host_libstdcxx in
1443 no|yes)
1444 AC_MSG_ERROR([-with-host-libstdcxx needs an argument])
1445 ;;
1446 esac
1447
1448 # Linker flags to use for stage1 or when not boostrapping.
1449 AC_ARG_WITH(stage1-ldflags,
1450 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1451 [if test "$withval" = "no" -o "$withval" = "yes"; then
1452 stage1_ldflags=
1453 else
1454 stage1_ldflags=$withval
1455 fi],
1456 [stage1_ldflags=])
1457 AC_SUBST(stage1_ldflags)
1458
1459 # Libraries to use for stage1 or when not bootstrapping.
1460 AC_ARG_WITH(stage1-libs,
1461 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1462 [if test "$withval" = "no" -o "$withval" = "yes"; then
1463 stage1_libs=
1464 else
1465 stage1_libs=$withval
1466 fi],
1467 [stage1_libs=$with_host_libstdcxx])
1468 AC_SUBST(stage1_libs)
1469
1470 # Libraries to use for stage2 and later builds. This defaults to the
1471 # argument passed to --with-host-libstdcxx.
1472 AC_ARG_WITH(boot-libs,
1473 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1474 [if test "$withval" = "no" -o "$withval" = "yes"; then
1475 poststage1_libs=
1476 else
1477 poststage1_libs=$withval
1478 fi],
1479 [poststage1_libs=$with_host_libstdcxx])
1480 AC_SUBST(poststage1_libs)
1481
1482 # Linker flags to use for stage2 and later builds.
1483 AC_ARG_WITH(boot-ldflags,
1484 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1485 [linker flags for stage2 and later])],
1486 [if test "$withval" = "no" -o "$withval" = "yes"; then
1487 poststage1_ldflags=
1488 else
1489 poststage1_ldflags=$withval
1490 fi],
1491 [poststage1_ldflags=
1492 # In stages 2 and 3, default to linking libstdc++ and libgcc
1493 # statically. But if the user explicitly specified the libraries to
1494 # use, trust that they are doing what they want.
1495 if test "$poststage1_libs" = ""; then
1496 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1497 fi])
1498 AC_SUBST(poststage1_ldflags)
1499
1500 # Check for PPL
1501 ppllibs=
1502 pplinc=
1503 pwllib=
1504
1505 AC_ARG_WITH(ppl,
1506 [AS_HELP_STRING([--with-ppl=PATH],
1507 [specify prefix directory for the installed PPL package.
1508 Equivalent to --with-ppl-include=PATH/include
1509 plus --with-ppl-lib=PATH/lib])])
1510 AC_ARG_WITH(ppl-include,
1511 [AS_HELP_STRING([--with-ppl-include=PATH],
1512 [specify directory for installed PPL include files])])
1513 AC_ARG_WITH(ppl-lib,
1514 [AS_HELP_STRING([--with-ppl-lib=PATH],
1515 [specify directory for the installed PPL library])])
1516
1517 AC_ARG_ENABLE(ppl-version-check,
1518 [AS_HELP_STRING([--disable-ppl-version-check],
1519 [disable check for PPL version])])
1520
1521 case $with_ppl in
1522 yes | no | "")
1523 ;;
1524 *)
1525 ppllibs="-L$with_ppl/lib"
1526 pplinc="-I$with_ppl/include $pplinc"
1527 if test -d "$with_ppl/lib" && test -d "$with_ppl/include"; then
1528 with_ppl=yes
1529 else
1530 AC_MSG_ERROR([cannot find directories "$with_ppl/lib" or "$with_ppl/include"])
1531 fi
1532 ;;
1533 esac
1534
1535 if test x"$with_ppl_include" != x; then
1536 pplinc="-I$with_ppl_include $pplinc"
1537 with_ppl=yes
1538 fi
1539
1540 if test "x$with_ppl_lib" != x; then
1541 ppllibs="-L$with_ppl_lib"
1542 with_ppl=yes
1543 fi
1544
1545 if test x"$with_ppl$with_ppl_include$with_ppl_lib" = x && test -d ${srcdir}/ppl; then
1546 if test x"$enable_watchdog" = xyes; then
1547 pwllib="-lpwl"
1548 fi
1549 ppllibs='-L$$r/$(HOST_SUBDIR)/ppl/interfaces/C/'"$lt_cv_objdir"' -L$$r/$(HOST_SUBDIR)/ppl/src/'"$lt_cv_objdir"
1550 pplinc='-I$$r/$(HOST_SUBDIR)/ppl/src -I$$r/$(HOST_SUBDIR)/ppl/interfaces/C '
1551 enable_ppl_version_check=no
1552 with_ppl=yes
1553 fi
1554
1555 if test "x$with_ppl" != xno; then
1556 if test "x$pwllib" = x; then
1557 saved_LIBS="$LIBS"
1558 LIBS="$LIBS $ppllibs -lstdc++ -lm"
1559 AC_CHECK_LIB(pwl, PWL_handle_timeout, [pwllib="-lpwl"])
1560 LIBS="$saved_LIBS"
1561 fi
1562
1563 ppllibs="$ppllibs -lppl_c -lppl $pwllib -lgmpxx"
1564
1565 if test "$enable_ppl_version_check" != no; then
1566 saved_CFLAGS="$CFLAGS"
1567 CFLAGS="$CFLAGS $pplinc $gmpinc"
1568 AC_MSG_CHECKING([for version 0.11 (revision 0 or later) of PPL])
1569 AC_TRY_COMPILE([#include "ppl_c.h"],[
1570 #if PPL_VERSION_MAJOR != 0 || PPL_VERSION_MINOR < 11
1571 choke me
1572 #endif
1573 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); ppllibs= ; pplinc= ; with_ppl=no ])
1574 CFLAGS="$saved_CFLAGS"
1575 fi
1576 fi
1577
1578 # Flags needed for PPL
1579 AC_SUBST(ppllibs)
1580 AC_SUBST(pplinc)
1581
1582
1583 # Check for CLOOG
1584
1585 dnl Provide configure switches and initialize clooginc & clooglibs
1586 dnl with user input.
1587 CLOOG_INIT_FLAGS
1588 if test "x$with_ppl" = "xno"; then
1589 dnl Only execute fail-action, if CLooG has been requested.
1590 CLOOG_REQUESTED([graphite_requested=yes], [graphite_requested=no])
1591 if test "${graphite_requested}" = yes; then
1592 AC_MSG_ERROR([Unable to find a usable PPL. See config.log for details.])
1593 fi
1594 with_cloog=no
1595 fi
1596 if test "x${with_cloog}" = x && test "x${with_cloog_include}" = x \
1597 && test "x${with_cloog_lib}" = x && test -d ${srcdir}/cloog; then
1598 clooglibs='-L$$r/$(HOST_SUBDIR)/cloog/'"$lt_cv_objdir"' '
1599 clooginc='-I$$r/$(HOST_SUBDIR)/cloog/include -I$$s/cloog/include '
1600 fi
1601 if test "x$with_cloog" != "xno"; then
1602 dnl The minimal version of CLooG required for Graphite.
1603 dnl
1604 dnl If we use CLooG-Legacy, the provided version information is
1605 dnl ignored.
1606 CLOOG_CHECK_VERSION(0,16,1)
1607
1608 dnl Only execute fail-action, if CLooG has been requested.
1609 CLOOG_IF_FAILED([
1610 AC_MSG_ERROR([Unable to find a usable CLooG. See config.log for details.])])
1611 fi
1612
1613 # Check for LTO support.
1614 AC_ARG_ENABLE(lto,
1615 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1616 enable_lto=$enableval,
1617 enable_lto=yes; default_enable_lto=yes)
1618
1619 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1620 build_lto_plugin=yes
1621 ],[if test x"$default_enable_lto" = x"yes" ; then
1622 case $target in
1623 *-apple-darwin9* | *-cygwin* | *-mingw*) ;;
1624 # On other non-ELF platforms, LTO has yet to be validated.
1625 *) enable_lto=no ;;
1626 esac
1627 else
1628 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1629 # It would also be nice to check the binutils support, but we don't
1630 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1631 # warn during gcc/ subconfigure; unless you're bootstrapping with
1632 # -flto it won't be needed until after installation anyway.
1633 case $target in
1634 *-cygwin* | *-mingw* | *-apple-darwin*) ;;
1635 *) if test x"$enable_lto" = x"yes"; then
1636 AC_MSG_ERROR([LTO support is not enabled for this target.])
1637 fi
1638 ;;
1639 esac
1640 fi
1641 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1642 # Build it unless LTO was explicitly disabled.
1643 case $target in
1644 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1645 *) ;;
1646 esac
1647 ])
1648
1649
1650 # By default, C is the only stage 1 language.
1651 stage1_languages=,c,
1652
1653 # Target libraries that we bootstrap.
1654 bootstrap_target_libs=,target-libgcc,
1655
1656 # Figure out what language subdirectories are present.
1657 # Look if the user specified --enable-languages="..."; if not, use
1658 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1659 # go away some day.
1660 # NB: embedded tabs in this IF block -- do not untabify
1661 if test -d ${srcdir}/gcc; then
1662 if test x"${enable_languages+set}" != xset; then
1663 if test x"${LANGUAGES+set}" = xset; then
1664 enable_languages="${LANGUAGES}"
1665 echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1666 else
1667 enable_languages=all
1668 fi
1669 else
1670 if test x"${enable_languages}" = x ||
1671 test x"${enable_languages}" = xyes;
1672 then
1673 echo configure.in: --enable-languages needs at least one language argument 1>&2
1674 exit 1
1675 fi
1676 fi
1677 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1678
1679 # 'f95' is the old name for the 'fortran' language. We issue a warning
1680 # and make the substitution.
1681 case ,${enable_languages}, in
1682 *,f95,*)
1683 echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1684 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1685 ;;
1686 esac
1687
1688 # If bootstrapping, then using --enable-build-with-cxx or
1689 # --enable-build-poststage1-with-cxx requires enabling C++.
1690 case ",$enable_languages,:,$ENABLE_BUILD_WITH_CXX,$ENABLE_BUILD_POSTSTAGE1_WITH_CXX,:$enable_bootstrap" in
1691 *,c++,*:*:*) ;;
1692 *:*,yes,*:yes)
1693 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1694 enable_languages="${enable_languages},c++"
1695 else
1696 AC_MSG_ERROR([bootstrapping with --enable-build-with-cxx or --enable-build-poststage1-with-cxx requires c++ sources])
1697 fi
1698 ;;
1699 esac
1700
1701 # First scan to see if an enabled language requires some other language.
1702 # We assume that a given config-lang.in will list all the language
1703 # front ends it requires, even if some are required indirectly.
1704 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1705 case ${lang_frag} in
1706 ..) ;;
1707 # The odd quoting in the next line works around
1708 # an apparent bug in bash 1.12 on linux.
1709 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1710 *)
1711 # From the config-lang.in, get $language, $lang_requires, and
1712 # $lang_requires_boot_languages.
1713 language=
1714 lang_requires=
1715 lang_requires_boot_languages=
1716 . ${lang_frag}
1717 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1718 case ,${enable_languages}, in
1719 *,$other,*) ;;
1720 *,all,*) ;;
1721 *,$language,*)
1722 echo " \`$other' language required by \`$language'; enabling" 1>&2
1723 enable_languages="${enable_languages},${other}"
1724 ;;
1725 esac
1726 done
1727 for other in ${lang_requires_boot_languages} ; do
1728 if test "$other" != "c"; then
1729 case ,${enable_stage1_languages}, in
1730 *,$other,*) ;;
1731 *,all,*) ;;
1732 *)
1733 case ,${enable_languages}, in
1734 *,$language,*)
1735 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1736 enable_stage1_languages="$enable_stage1_languages,${other}"
1737 ;;
1738 esac
1739 ;;
1740 esac
1741 fi
1742 done
1743 ;;
1744 esac
1745 done
1746
1747 new_enable_languages=,c,
1748
1749 # If LTO is enabled, add the LTO front end.
1750 extra_host_libiberty_configure_flags=
1751 if test "$enable_lto" = "yes" ; then
1752 case ,${enable_languages}, in
1753 *,lto,*) ;;
1754 *) enable_languages="${enable_languages},lto" ;;
1755 esac
1756 if test "${build_lto_plugin}" = "yes" ; then
1757 configdirs="$configdirs lto-plugin"
1758 extra_host_libiberty_configure_flags=--enable-shared
1759 fi
1760 fi
1761 AC_SUBST(extra_host_libiberty_configure_flags)
1762
1763 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1764 potential_languages=,c,
1765
1766 enabled_target_libs=
1767 disabled_target_libs=
1768
1769 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1770 case ${lang_frag} in
1771 ..) ;;
1772 # The odd quoting in the next line works around
1773 # an apparent bug in bash 1.12 on linux.
1774 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1775 *)
1776 # From the config-lang.in, get $language, $target_libs,
1777 # $lang_dirs, $boot_language, and $build_by_default
1778 language=
1779 target_libs=
1780 lang_dirs=
1781 subdir_requires=
1782 boot_language=no
1783 build_by_default=yes
1784 . ${lang_frag}
1785 if test x${language} = x; then
1786 echo "${lang_frag} doesn't set \$language." 1>&2
1787 exit 1
1788 fi
1789
1790 if test "$language" = "c++"; then
1791 if test "$ENABLE_BUILD_WITH_CXX" = "yes" \
1792 || test "$ENABLE_BUILD_POSTSTAGE1_WITH_CXX" = "yes"; then
1793 boot_language=yes
1794 fi
1795 fi
1796
1797 case ,${enable_languages}, in
1798 *,${language},*)
1799 # Language was explicitly selected; include it.
1800 add_this_lang=yes
1801 ;;
1802 *,all,*)
1803 # 'all' was selected, select it if it is a default language
1804 add_this_lang=${build_by_default}
1805 ;;
1806 *)
1807 add_this_lang=no
1808 ;;
1809 esac
1810
1811 # Disable languages that need other directories if these aren't available.
1812 for i in $subdir_requires; do
1813 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1814 case ,${enable_languages}, in
1815 *,${language},*)
1816 # Specifically requested language; tell them.
1817 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1818 ;;
1819 *)
1820 # Silently disable.
1821 add_this_lang=unsupported
1822 ;;
1823 esac
1824 done
1825
1826 # Disable Ada if no preexisting GNAT is available.
1827 case ,${enable_languages},:${language}:${have_gnat} in
1828 *,${language},*:ada:no)
1829 # Specifically requested language; tell them.
1830 AC_MSG_ERROR([GNAT is required to build $language])
1831 ;;
1832 *:ada:no)
1833 # Silently disable.
1834 add_this_lang=unsupported
1835 ;;
1836 esac
1837
1838 # Disable a language that is unsupported by the target.
1839 case " $unsupported_languages " in
1840 *" $language "*)
1841 add_this_lang=unsupported
1842 ;;
1843 esac
1844
1845 case $add_this_lang in
1846 unsupported)
1847 # Remove language-dependent dirs.
1848 disabled_target_libs="$disabled_target_libs $target_libs"
1849 noconfigdirs="$noconfigdirs $lang_dirs"
1850 ;;
1851 no)
1852 # Remove language-dependent dirs; still show language as supported.
1853 disabled_target_libs="$disabled_target_libs $target_libs"
1854 noconfigdirs="$noconfigdirs $lang_dirs"
1855 potential_languages="${potential_languages}${language},"
1856 ;;
1857 yes)
1858 new_enable_languages="${new_enable_languages}${language},"
1859 potential_languages="${potential_languages}${language},"
1860 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1861 enabled_target_libs="$enabled_target_libs $target_libs"
1862 case "${boot_language}:,$enable_stage1_languages," in
1863 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
1864 # Add to (comma-separated) list of stage 1 languages.
1865 case ",$stage1_languages," in
1866 *,$language,* | ,yes, | ,all,) ;;
1867 *) stage1_languages="${stage1_languages}${language}," ;;
1868 esac
1869 # We need to bootstrap any supporting libraries.
1870 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
1871 ;;
1872 esac
1873 ;;
1874 esac
1875 ;;
1876 esac
1877 done
1878
1879 # Add target libraries which are only needed for disabled languages
1880 # to noconfigdirs.
1881 if test -n "$disabled_target_libs"; then
1882 for dir in $disabled_target_libs; do
1883 case " $enabled_target_libs " in
1884 *" ${dir} "*) ;;
1885 *) noconfigdirs="$noconfigdirs $dir" ;;
1886 esac
1887 done
1888 fi
1889
1890 AC_ARG_ENABLE(stage1-languages,
1891 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
1892 [choose additional languages to build during
1893 stage1. Mostly useful for compiler development])],
1894 [case ,${enable_stage1_languages}, in
1895 ,no,|,,)
1896 # Set it to something that will have no effect in the loop below
1897 enable_stage1_languages=c ;;
1898 ,yes,)
1899 enable_stage1_languages=`echo $new_enable_languages | \
1900 sed -e "s/^,//" -e "s/,$//" ` ;;
1901 *,all,*)
1902 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
1903 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
1904 esac
1905
1906 # Add "good" languages from enable_stage1_languages to stage1_languages,
1907 # while "bad" languages go in missing_languages. Leave no duplicates.
1908 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
1909 case $potential_languages in
1910 *,$i,*)
1911 case $stage1_languages in
1912 *,$i,*) ;;
1913 *) stage1_languages="$stage1_languages$i," ;;
1914 esac ;;
1915 *)
1916 case $missing_languages in
1917 *,$i,*) ;;
1918 *) missing_languages="$missing_languages$i," ;;
1919 esac ;;
1920 esac
1921 done])
1922
1923 # Remove leading/trailing commas that were added for simplicity
1924 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
1925 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1926 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
1927 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
1928
1929 if test "x$missing_languages" != x; then
1930 AC_MSG_ERROR([
1931 The following requested languages could not be built: ${missing_languages}
1932 Supported languages are: ${potential_languages}])
1933 fi
1934 if test "x$new_enable_languages" != "x$enable_languages"; then
1935 echo The following languages will be built: ${new_enable_languages}
1936 enable_languages="$new_enable_languages"
1937 fi
1938
1939 AC_SUBST(stage1_languages)
1940 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
1941 fi
1942
1943 # Handle --disable-<component> generically.
1944 for dir in $configdirs $build_configdirs $target_configdirs ; do
1945 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1946 varname=`echo $dirname | sed -e s/+/_/g`
1947 if eval test x\${enable_${varname}} "=" xno ; then
1948 noconfigdirs="$noconfigdirs $dir"
1949 fi
1950 done
1951
1952 # Check for Boehm's garbage collector
1953 AC_ARG_ENABLE(objc-gc,
1954 [AS_HELP_STRING([--enable-objc-gc],
1955 [enable use of Boehm's garbage collector with the
1956 GNU Objective-C runtime])],
1957 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
1958 *,objc,*:*:yes:*target-boehm-gc*)
1959 AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
1960 ;;
1961 esac])
1962
1963 # Make sure we only build Boehm's garbage collector if required.
1964 case ,${enable_languages},:${enable_objc_gc} in
1965 *,objc,*:yes)
1966 # Keep target-boehm-gc if requested for Objective-C.
1967 ;;
1968 *)
1969 # Otherwise remove target-boehm-gc depending on target-libjava.
1970 if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
1971 noconfigdirs="$noconfigdirs target-boehm-gc"
1972 fi
1973 ;;
1974 esac
1975
1976 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1977 # $build_configdirs and $target_configdirs.
1978 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1979
1980 notsupp=""
1981 for dir in . $skipdirs $noconfigdirs ; do
1982 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1983 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1984 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1985 if test -r $srcdir/$dirname/configure ; then
1986 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1987 true
1988 else
1989 notsupp="$notsupp $dir"
1990 fi
1991 fi
1992 fi
1993 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1994 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1995 if test -r $srcdir/$dirname/configure ; then
1996 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1997 true
1998 else
1999 notsupp="$notsupp $dir"
2000 fi
2001 fi
2002 fi
2003 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2004 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2005 if test -r $srcdir/$dirname/configure ; then
2006 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2007 true
2008 else
2009 notsupp="$notsupp $dir"
2010 fi
2011 fi
2012 fi
2013 done
2014
2015 # Quietly strip out all directories which aren't configurable in this tree.
2016 # This relies on all configurable subdirectories being autoconfiscated, which
2017 # is now the case.
2018 build_configdirs_all="$build_configdirs"
2019 build_configdirs=
2020 for i in ${build_configdirs_all} ; do
2021 j=`echo $i | sed -e s/build-//g`
2022 if test -f ${srcdir}/$j/configure ; then
2023 build_configdirs="${build_configdirs} $i"
2024 fi
2025 done
2026
2027 configdirs_all="$configdirs"
2028 configdirs=
2029 for i in ${configdirs_all} ; do
2030 if test -f ${srcdir}/$i/configure ; then
2031 configdirs="${configdirs} $i"
2032 fi
2033 done
2034
2035 target_configdirs_all="$target_configdirs"
2036 target_configdirs=
2037 for i in ${target_configdirs_all} ; do
2038 j=`echo $i | sed -e s/target-//g`
2039 if test -f ${srcdir}/$j/configure ; then
2040 target_configdirs="${target_configdirs} $i"
2041 fi
2042 done
2043
2044 # Produce a warning message for the subdirs we can't configure.
2045 # This isn't especially interesting in the Cygnus tree, but in the individual
2046 # FSF releases, it's important to let people know when their machine isn't
2047 # supported by the one or two programs in a package.
2048
2049 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2050 # If $appdirs is non-empty, at least one of those directories must still
2051 # be configured, or we error out. (E.g., if the gas release supports a
2052 # specified target in some subdirs but not the gas subdir, we shouldn't
2053 # pretend that all is well.)
2054 if test -n "$appdirs" ; then
2055 for dir in $appdirs ; do
2056 if test -r $dir/Makefile.in ; then
2057 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2058 appdirs=""
2059 break
2060 fi
2061 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2062 appdirs=""
2063 break
2064 fi
2065 fi
2066 done
2067 if test -n "$appdirs" ; then
2068 echo "*** This configuration is not supported by this package." 1>&2
2069 exit 1
2070 fi
2071 fi
2072 # Okay, some application will build, or we don't care to check. Still
2073 # notify of subdirs not getting built.
2074 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2075 echo " ${notsupp}" 1>&2
2076 echo " (Any other directories should still work fine.)" 1>&2
2077 fi
2078
2079 case "$host" in
2080 *msdosdjgpp*)
2081 enable_gdbtk=no ;;
2082 esac
2083
2084 # To find our prefix, in gcc_cv_tool_prefix.
2085 ACX_TOOL_DIRS
2086
2087 copy_dirs=
2088
2089 AC_ARG_WITH([build-sysroot],
2090 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2091 [use sysroot as the system root during the build])],
2092 [if test x"$withval" != x ; then
2093 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2094 fi],
2095 [SYSROOT_CFLAGS_FOR_TARGET=])
2096 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2097
2098 AC_ARG_WITH([debug-prefix-map],
2099 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2100 [map A to B, C to D ... in debug information])],
2101 [if test x"$withval" != x; then
2102 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2103 for debug_map in $withval; do
2104 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2105 done
2106 fi],
2107 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2108 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2109
2110 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2111 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2112 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2113 # We want to ensure that TARGET libraries (which we know are built with
2114 # gcc) are built with "-O2 -g", so include those options when setting
2115 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2116 if test "x$CFLAGS_FOR_TARGET" = x; then
2117 CFLAGS_FOR_TARGET=$CFLAGS
2118 case " $CFLAGS " in
2119 *" -O2 "*) ;;
2120 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS" ;;
2121 esac
2122 case " $CFLAGS " in
2123 *" -g "* | *" -g3 "*) ;;
2124 *) CFLAGS_FOR_TARGET="-g $CFLAGS" ;;
2125 esac
2126 fi
2127 AC_SUBST(CFLAGS_FOR_TARGET)
2128
2129 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2130 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2131 case " $CXXFLAGS " in
2132 *" -O2 "*) ;;
2133 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS" ;;
2134 esac
2135 case " $CXXFLAGS " in
2136 *" -g "* | *" -g3 "*) ;;
2137 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS" ;;
2138 esac
2139 fi
2140 AC_SUBST(CXXFLAGS_FOR_TARGET)
2141
2142 AC_SUBST(LDFLAGS_FOR_TARGET)
2143
2144 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2145 # the named directory are copied to $(tooldir)/sys-include.
2146 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2147 if test x${is_cross_compiler} = xno ; then
2148 echo 1>&2 '***' --with-headers is only supported when cross compiling
2149 exit 1
2150 fi
2151 if test x"${with_headers}" != xyes ; then
2152 x=${gcc_cv_tool_prefix}
2153 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2154 fi
2155 fi
2156
2157 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2158 # the name directories are copied to $(tooldir)/lib. Multiple directories
2159 # are permitted.
2160 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2161 if test x${is_cross_compiler} = xno ; then
2162 echo 1>&2 '***' --with-libs is only supported when cross compiling
2163 exit 1
2164 fi
2165 if test x"${with_libs}" != xyes ; then
2166 # Copy the libraries in reverse order, so that files in the first named
2167 # library override files in subsequent libraries.
2168 x=${gcc_cv_tool_prefix}
2169 for l in ${with_libs}; do
2170 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2171 done
2172 fi
2173 fi
2174
2175 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2176 #
2177 # This is done by determining whether or not the appropriate directory
2178 # is available, and by checking whether or not specific configurations
2179 # have requested that this magic not happen.
2180 #
2181 # The command line options always override the explicit settings in
2182 # configure.in, and the settings in configure.in override this magic.
2183 #
2184 # If the default for a toolchain is to use GNU as and ld, and you don't
2185 # want to do that, then you should use the --without-gnu-as and
2186 # --without-gnu-ld options for the configure script. Similarly, if
2187 # the default is to use the included zlib and you don't want to do that,
2188 # you should use the --with-system-zlib option for the configure script.
2189
2190 if test x${use_gnu_as} = x &&
2191 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2192 with_gnu_as=yes
2193 extra_host_args="$extra_host_args --with-gnu-as"
2194 fi
2195
2196 if test x${use_gnu_ld} = x &&
2197 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2198 with_gnu_ld=yes
2199 extra_host_args="$extra_host_args --with-gnu-ld"
2200 fi
2201
2202 if test x${use_included_zlib} = x &&
2203 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2204 :
2205 else
2206 with_system_zlib=yes
2207 extra_host_args="$extra_host_args --with-system-zlib"
2208 fi
2209
2210 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2211 # can detect this case.
2212
2213 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2214 with_newlib=yes
2215 extra_host_args="$extra_host_args --with-newlib"
2216 fi
2217
2218 # Handle ${copy_dirs}
2219 set fnord ${copy_dirs}
2220 shift
2221 while test $# != 0 ; do
2222 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2223 :
2224 else
2225 echo Copying $1 to $2
2226
2227 # Use the install script to create the directory and all required
2228 # parent directories.
2229 if test -d $2 ; then
2230 :
2231 else
2232 echo >config.temp
2233 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2234 fi
2235
2236 # Copy the directory, assuming we have tar.
2237 # FIXME: Should we use B in the second tar? Not all systems support it.
2238 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2239
2240 # It is the responsibility of the user to correctly adjust all
2241 # symlinks. If somebody can figure out how to handle them correctly
2242 # here, feel free to add the code.
2243
2244 echo $1 > $2/COPIED
2245 fi
2246 shift; shift
2247 done
2248
2249 # Determine a target-dependent exec_prefix that the installed
2250 # gcc will search in. Keep this list sorted by triplet, with
2251 # the *-*-osname triplets last.
2252 md_exec_prefix=
2253 case "${target}" in
2254 i[[34567]]86-pc-msdosdjgpp*)
2255 md_exec_prefix=/dev/env/DJDIR/bin
2256 ;;
2257 *-*-hpux* | \
2258 *-*-nto-qnx* | \
2259 *-*-solaris2*)
2260 md_exec_prefix=/usr/ccs/bin
2261 ;;
2262 esac
2263
2264 extra_arflags_for_target=
2265 extra_nmflags_for_target=
2266 extra_ranlibflags_for_target=
2267 target_makefile_frag=/dev/null
2268 case "${target}" in
2269 spu-*-*)
2270 target_makefile_frag="config/mt-spu"
2271 ;;
2272 mips*-sde-elf*)
2273 target_makefile_frag="config/mt-sde"
2274 ;;
2275 mipsisa*-*-elfoabi*)
2276 target_makefile_frag="config/mt-mips-elfoabi"
2277 ;;
2278 mips*-*-*linux* | mips*-*-gnu*)
2279 target_makefile_frag="config/mt-mips-gnu"
2280 ;;
2281 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2282 target_makefile_frag="config/mt-gnu"
2283 ;;
2284 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2285 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2286 # commands to handle both 32-bit and 64-bit objects. These flags are
2287 # harmless if we're using GNU nm or ar.
2288 extra_arflags_for_target=" -X32_64"
2289 extra_nmflags_for_target=" -B -X32_64"
2290 ;;
2291 *-*-darwin[[3-9]]*)
2292 # ranlib before Darwin10 requires the -c flag to look at common symbols.
2293 extra_ranlibflags_for_target=" -c"
2294 ;;
2295 esac
2296
2297 alphaieee_frag=/dev/null
2298 case $target in
2299 alpha*-*-*)
2300 # This just makes sure to use the -mieee option to build target libs.
2301 # This should probably be set individually by each library.
2302 alphaieee_frag="config/mt-alphaieee"
2303 ;;
2304 esac
2305
2306 # If --enable-target-optspace always use -Os instead of -O2 to build
2307 # the target libraries, similarly if it is not specified, use -Os
2308 # on selected platforms.
2309 ospace_frag=/dev/null
2310 case "${enable_target_optspace}:${target}" in
2311 yes:*)
2312 ospace_frag="config/mt-ospace"
2313 ;;
2314 :d30v-*)
2315 ospace_frag="config/mt-d30v"
2316 ;;
2317 :m32r-* | :d10v-* | :fr30-*)
2318 ospace_frag="config/mt-ospace"
2319 ;;
2320 no:* | :*)
2321 ;;
2322 *)
2323 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2324 ;;
2325 esac
2326
2327 # Some systems (e.g., one of the i386-aix systems the gas testers are
2328 # using) don't handle "\$" correctly, so don't use it here.
2329 tooldir='${exec_prefix}'/${target_noncanonical}
2330 build_tooldir=${tooldir}
2331
2332 # Create a .gdbinit file which runs the one in srcdir
2333 # and tells GDB to look there for source files.
2334
2335 if test -r ${srcdir}/.gdbinit ; then
2336 case ${srcdir} in
2337 .) ;;
2338 *) cat > ./.gdbinit <<EOF
2339 # ${NO_EDIT}
2340 dir ${srcdir}
2341 dir .
2342 source ${srcdir}/.gdbinit
2343 EOF
2344 ;;
2345 esac
2346 fi
2347
2348 # Make sure that the compiler is able to generate an executable. If it
2349 # can't, we are probably in trouble. We don't care whether we can run the
2350 # executable--we might be using a cross compiler--we only care whether it
2351 # can be created. At this point the main configure script has set CC.
2352 we_are_ok=no
2353 echo "int main () { return 0; }" > conftest.c
2354 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2355 if test $? = 0 ; then
2356 if test -s conftest || test -s conftest.exe ; then
2357 we_are_ok=yes
2358 fi
2359 fi
2360 case $we_are_ok in
2361 no)
2362 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2363 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2364 rm -f conftest*
2365 exit 1
2366 ;;
2367 esac
2368 rm -f conftest*
2369
2370 # Decide which environment variable is used to find dynamic libraries.
2371 case "${host}" in
2372 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2373 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2374 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2375 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2376 esac
2377
2378 # On systems where the dynamic library environment variable is PATH,
2379 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2380 # built executables to PATH.
2381 if test "$RPATH_ENVVAR" = PATH; then
2382 GCC_SHLIB_SUBDIR=/shlib
2383 else
2384 GCC_SHLIB_SUBDIR=
2385 fi
2386
2387 # Record target_configdirs and the configure arguments for target and
2388 # build configuration in Makefile.
2389 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2390 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2391
2392 # If we are building libgomp, bootstrap it.
2393 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2394 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2395 fi
2396
2397 # Determine whether gdb needs tk/tcl or not.
2398 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2399 # and in that case we want gdb to be built without tk. Ugh!
2400 # In fact I believe gdb is the *only* package directly dependent on tk,
2401 # so we should be able to put the 'maybe's in unconditionally and
2402 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2403 # 100% sure that that's safe though.
2404
2405 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2406 case "$enable_gdbtk" in
2407 no)
2408 GDB_TK="" ;;
2409 yes)
2410 GDB_TK="${gdb_tk}" ;;
2411 *)
2412 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2413 # distro. Eventually someone will fix this and move Insight, nee
2414 # gdbtk to a separate directory.
2415 if test -d ${srcdir}/gdb/gdbtk ; then
2416 GDB_TK="${gdb_tk}"
2417 else
2418 GDB_TK=""
2419 fi
2420 ;;
2421 esac
2422 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2423 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2424
2425 # Strip out unwanted targets.
2426
2427 # While at that, we remove Makefiles if we were started for recursive
2428 # configuration, so that the top-level Makefile reconfigures them,
2429 # like we used to do when configure itself was recursive.
2430
2431 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2432 # but now we're fixing up the Makefile ourselves with the additional
2433 # commands passed to AC_CONFIG_FILES. Use separate variables
2434 # extrasub-{build,host,target} not because there is any reason to split
2435 # the substitutions up that way, but only to remain below the limit of
2436 # 99 commands in a script, for HP-UX sed.
2437 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2438
2439 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2440 yes:yes:*\ gold\ *:*,c++,*) ;;
2441 yes:yes:*\ gold\ *:*)
2442 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2443 ;;
2444 esac
2445
2446 # Adjust the toplevel makefile according to whether bootstrap was selected.
2447 case $enable_bootstrap in
2448 yes)
2449 bootstrap_suffix=bootstrap
2450 BUILD_CONFIG=bootstrap-debug
2451 ;;
2452 no)
2453 bootstrap_suffix=no-bootstrap
2454 BUILD_CONFIG=
2455 ;;
2456 esac
2457
2458 AC_MSG_CHECKING(for default BUILD_CONFIG)
2459
2460 AC_ARG_WITH([build-config],
2461 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2462 [use config/NAME.mk build configuration])],
2463 [case $with_build_config in
2464 yes) with_build_config= ;;
2465 no) with_build_config= BUILD_CONFIG= ;;
2466 esac])
2467
2468 if test "x${with_build_config}" != x; then
2469 BUILD_CONFIG=$with_build_config
2470 else
2471 case $BUILD_CONFIG in
2472 bootstrap-debug)
2473 if echo "int f (void) { return 0; }" > conftest.c &&
2474 ${CC} -c conftest.c &&
2475 mv conftest.o conftest.o.g0 &&
2476 ${CC} -c -g conftest.c &&
2477 mv conftest.o conftest.o.g &&
2478 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2479 :
2480 else
2481 BUILD_CONFIG=
2482 fi
2483 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2484 ;;
2485 esac
2486 fi
2487 AC_MSG_RESULT($BUILD_CONFIG)
2488 AC_SUBST(BUILD_CONFIG)
2489
2490 extrasub_build=
2491 for module in ${build_configdirs} ; do
2492 if test -z "${no_recursion}" \
2493 && test -f ${build_subdir}/${module}/Makefile; then
2494 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2495 rm -f ${build_subdir}/${module}/Makefile
2496 fi
2497 extrasub_build="$extrasub_build
2498 /^@if build-$module\$/d
2499 /^@endif build-$module\$/d
2500 /^@if build-$module-$bootstrap_suffix\$/d
2501 /^@endif build-$module-$bootstrap_suffix\$/d"
2502 done
2503 extrasub_host=
2504 for module in ${configdirs} ; do
2505 if test -z "${no_recursion}"; then
2506 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2507 if test -f ${file}; then
2508 echo 1>&2 "*** removing ${file} to force reconfigure"
2509 rm -f ${file}
2510 fi
2511 done
2512 fi
2513 extrasub_host="$extrasub_host
2514 /^@if $module\$/d
2515 /^@endif $module\$/d
2516 /^@if $module-$bootstrap_suffix\$/d
2517 /^@endif $module-$bootstrap_suffix\$/d"
2518 done
2519 extrasub_target=
2520 for module in ${target_configdirs} ; do
2521 if test -z "${no_recursion}" \
2522 && test -f ${target_subdir}/${module}/Makefile; then
2523 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2524 rm -f ${target_subdir}/${module}/Makefile
2525 fi
2526
2527 # We only bootstrap target libraries listed in bootstrap_target_libs.
2528 case $bootstrap_target_libs in
2529 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2530 *) target_bootstrap_suffix=no-bootstrap ;;
2531 esac
2532
2533 extrasub_target="$extrasub_target
2534 /^@if target-$module\$/d
2535 /^@endif target-$module\$/d
2536 /^@if target-$module-$target_bootstrap_suffix\$/d
2537 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2538 done
2539
2540 # Do the final fixup along with target modules.
2541 extrasub_target="$extrasub_target
2542 /^@if /,/^@endif /d"
2543
2544 # Create the serialization dependencies. This uses a temporary file.
2545
2546 AC_ARG_ENABLE([serial-configure],
2547 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2548 [force sequential configuration of
2549 sub-packages for the host, target or build
2550 machine, or all sub-packages])])
2551
2552 case ${enable_serial_configure} in
2553 yes)
2554 enable_serial_build_configure=yes
2555 enable_serial_host_configure=yes
2556 enable_serial_target_configure=yes
2557 ;;
2558 esac
2559
2560 # These force 'configure's to be done one at a time, to avoid problems
2561 # with contention over a shared config.cache.
2562 rm -f serdep.tmp
2563 echo '# serdep.tmp' > serdep.tmp
2564 olditem=
2565 test "x${enable_serial_build_configure}" = xyes &&
2566 for item in ${build_configdirs} ; do
2567 case ${olditem} in
2568 "") ;;
2569 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2570 esac
2571 olditem=${item}
2572 done
2573 olditem=
2574 test "x${enable_serial_host_configure}" = xyes &&
2575 for item in ${configdirs} ; do
2576 case ${olditem} in
2577 "") ;;
2578 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2579 esac
2580 olditem=${item}
2581 done
2582 olditem=
2583 test "x${enable_serial_target_configure}" = xyes &&
2584 for item in ${target_configdirs} ; do
2585 case ${olditem} in
2586 "") ;;
2587 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2588 esac
2589 olditem=${item}
2590 done
2591 serialization_dependencies=serdep.tmp
2592 AC_SUBST_FILE(serialization_dependencies)
2593
2594 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2595 # target, nonopt, and variable assignments. These are the ones we
2596 # might not want to pass down to subconfigures. The exception being
2597 # --cache-file=/dev/null, which is used to turn off the use of cache
2598 # files altogether, and which should be passed on to subconfigures.
2599 # Also strip program-prefix, program-suffix, and program-transform-name,
2600 # so that we can pass down a consistent program-transform-name.
2601 baseargs=
2602 tbaseargs=
2603 keep_next=no
2604 skip_next=no
2605 eval "set -- $ac_configure_args"
2606 for ac_arg
2607 do
2608 if test X"$skip_next" = X"yes"; then
2609 skip_next=no
2610 continue
2611 fi
2612 if test X"$keep_next" = X"yes"; then
2613 case $ac_arg in
2614 *\'*)
2615 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2616 esac
2617 baseargs="$baseargs '$ac_arg'"
2618 tbaseargs="$tbaseargs '$ac_arg'"
2619 keep_next=no
2620 continue
2621 fi
2622
2623 # Handle separated arguments. Based on the logic generated by
2624 # autoconf 2.59.
2625 case $ac_arg in
2626 *=* | --config-cache | -C | -disable-* | --disable-* \
2627 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2628 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2629 | -with-* | --with-* | -without-* | --without-* | --x)
2630 separate_arg=no
2631 ;;
2632 -*)
2633 separate_arg=yes
2634 ;;
2635 *)
2636 separate_arg=no
2637 ;;
2638 esac
2639
2640 skip_targ=no
2641 case $ac_arg in
2642 changequote(,)
2643 --with-* | --without-*)
2644 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2645
2646 case $libopt in
2647 *[-_]include)
2648 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2649 ;;
2650 *[-_]lib)
2651 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2652 ;;
2653 *)
2654 lib=$libopt
2655 ;;
2656 esac
2657 changequote([,])
2658
2659 case $lib in
2660 mpc | mpfr | gmp | ppl | cloog)
2661 # If we're processing --with-$lib, --with-$lib-include or
2662 # --with-$lib-lib, for one of the libs above, and target is
2663 # different from host, don't pass the current argument to any
2664 # target library's configure.
2665 if test x$is_cross_compiler = xyes; then
2666 skip_targ=yes
2667 fi
2668 ;;
2669 esac
2670 ;;
2671 esac
2672
2673 case "$ac_arg" in
2674 --cache-file=/dev/null | \
2675 -cache-file=/dev/null )
2676 # Handled here to avoid the test to skip args below.
2677 baseargs="$baseargs '$ac_arg'"
2678 tbaseargs="$tbaseargs '$ac_arg'"
2679 # Assert: $separate_arg should always be no.
2680 keep_next=$separate_arg
2681 ;;
2682 --no*)
2683 continue
2684 ;;
2685 --c* | \
2686 --sr* | \
2687 --ho* | \
2688 --bu* | \
2689 --t* | \
2690 --program-* | \
2691 -cache_file* | \
2692 -srcdir* | \
2693 -host* | \
2694 -build* | \
2695 -target* | \
2696 -program-prefix* | \
2697 -program-suffix* | \
2698 -program-transform-name* )
2699 skip_next=$separate_arg
2700 continue
2701 ;;
2702 -*)
2703 # An option. Add it.
2704 case $ac_arg in
2705 *\'*)
2706 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2707 esac
2708 baseargs="$baseargs '$ac_arg'"
2709 if test X"$skip_targ" = Xno; then
2710 tbaseargs="$tbaseargs '$ac_arg'"
2711 fi
2712 keep_next=$separate_arg
2713 ;;
2714 *)
2715 # Either a variable assignment, or a nonopt (triplet). Don't
2716 # pass it down; let the Makefile handle this.
2717 continue
2718 ;;
2719 esac
2720 done
2721 # Remove the initial space we just introduced and, as these will be
2722 # expanded by make, quote '$'.
2723 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2724
2725 # Add in --program-transform-name, after --program-prefix and
2726 # --program-suffix have been applied to it. Autoconf has already
2727 # doubled dollar signs and backslashes in program_transform_name; we want
2728 # the backslashes un-doubled, and then the entire thing wrapped in single
2729 # quotes, because this will be expanded first by make and then by the shell.
2730 # Also, because we want to override the logic in subdir configure scripts to
2731 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2732 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2733 ${program_transform_name}
2734 EOF_SED
2735 gcc_transform_name=`cat conftestsed.out`
2736 rm -f conftestsed.out
2737 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2738 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
2739 if test "$silent" = yes; then
2740 baseargs="$baseargs --silent"
2741 tbaseargs="$tbaseargs --silent"
2742 fi
2743 baseargs="$baseargs --disable-option-checking"
2744 tbaseargs="$tbaseargs --disable-option-checking"
2745
2746 # Record and document user additions to sub configure arguments.
2747 AC_ARG_VAR([build_configargs],
2748 [additional configure arguments for build directories])
2749 AC_ARG_VAR([host_configargs],
2750 [additional configure arguments for host directories])
2751 AC_ARG_VAR([target_configargs],
2752 [additional configure arguments for target directories])
2753
2754 # For the build-side libraries, we just need to pretend we're native,
2755 # and not use the same cache file. Multilibs are neither needed nor
2756 # desired.
2757 build_configargs="$build_configargs --cache-file=../config.cache ${baseargs}"
2758
2759 # For host modules, accept cache file option, or specification as blank.
2760 case "${cache_file}" in
2761 "") # empty
2762 cache_file_option="" ;;
2763 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2764 cache_file_option="--cache-file=${cache_file}" ;;
2765 *) # relative path
2766 cache_file_option="--cache-file=../${cache_file}" ;;
2767 esac
2768
2769 # Host dirs don't like to share a cache file either, horribly enough.
2770 # This seems to be due to autoconf 2.5x stupidity.
2771 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
2772
2773 target_configargs="$target_configargs ${tbaseargs}"
2774
2775 # Passing a --with-cross-host argument lets the target libraries know
2776 # whether they are being built with a cross-compiler or being built
2777 # native. However, it would be better to use other mechanisms to make the
2778 # sorts of decisions they want to make on this basis. Please consider
2779 # this option to be deprecated. FIXME.
2780 if test x${is_cross_compiler} = xyes ; then
2781 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
2782 fi
2783
2784 # Default to --enable-multilib.
2785 if test x${enable_multilib} = x ; then
2786 target_configargs="--enable-multilib ${target_configargs}"
2787 fi
2788
2789 # Pass --with-newlib if appropriate. Note that target_configdirs has
2790 # changed from the earlier setting of with_newlib.
2791 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2792 target_configargs="--with-newlib ${target_configargs}"
2793 fi
2794
2795 # Different target subdirs use different values of certain variables
2796 # (notably CXX). Worse, multilibs use *lots* of different values.
2797 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2798 # it doesn't automatically accept command-line overrides of them.
2799 # This means it's not safe for target subdirs to share a cache file,
2800 # which is disgusting, but there you have it. Hopefully this can be
2801 # fixed in future. It's still worthwhile to use a cache file for each
2802 # directory. I think.
2803
2804 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2805 # We need to pass --target, as newer autoconf's requires consistency
2806 # for target_alias and gcc doesn't manage it consistently.
2807 target_configargs="--cache-file=./config.cache ${target_configargs}"
2808
2809 FLAGS_FOR_TARGET=
2810 case " $target_configdirs " in
2811 *" newlib "*)
2812 case " $target_configargs " in
2813 *" --with-newlib "*)
2814 case "$target" in
2815 *-cygwin*)
2816 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/include -isystem $$s/winsup/cygwin/include -isystem $$s/winsup/w32api/include'
2817 ;;
2818 esac
2819
2820 # If we're not building GCC, don't discard standard headers.
2821 if test -d ${srcdir}/gcc; then
2822 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2823
2824 if test "${build}" != "${host}"; then
2825 # On Canadian crosses, CC_FOR_TARGET will have already been set
2826 # by `configure', so we won't have an opportunity to add -Bgcc/
2827 # to it. This is right: we don't want to search that directory
2828 # for binaries, but we want the header files in there, so add
2829 # them explicitly.
2830 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
2831
2832 # Someone might think of using the pre-installed headers on
2833 # Canadian crosses, in case the installed compiler is not fully
2834 # compatible with the compiler being built. In this case, it
2835 # would be better to flag an error than risking having
2836 # incompatible object files being constructed. We can't
2837 # guarantee that an error will be flagged, but let's hope the
2838 # compiler will do it, when presented with incompatible header
2839 # files.
2840 fi
2841 fi
2842
2843 case "${target}-${is_cross_compiler}" in
2844 i[[3456789]]86-*-linux*-no)
2845 # Here host == target, so we don't need to build gcc,
2846 # so we don't want to discard standard headers.
2847 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2848 ;;
2849 *)
2850 # If we're building newlib, use its generic headers last, but search
2851 # for any libc-related directories first (so make it the last -B
2852 # switch).
2853 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2854
2855 # If we're building libgloss, find the startup file, simulator library
2856 # and linker script.
2857 case " $target_configdirs " in
2858 *" libgloss "*)
2859 # Look for startup file, simulator library and maybe linker script.
2860 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
2861 # Look for libnosys.a in case the target needs it.
2862 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2863 # Most targets have the linker script in the source directory.
2864 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
2865 ;;
2866 esac
2867 ;;
2868 esac
2869 ;;
2870 esac
2871 ;;
2872 esac
2873
2874 case "$target" in
2875 x86_64-*mingw* | *-w64-mingw*)
2876 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
2877 # however, use a symlink named 'mingw' in ${prefix} .
2878 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
2879 ;;
2880 *-mingw*)
2881 # MinGW can't be handled as Cygwin above since it does not use newlib.
2882 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
2883 ;;
2884 esac
2885
2886 # Allow the user to override the flags for
2887 # our build compiler if desired.
2888 if test x"${build}" = x"${host}" ; then
2889 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2890 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
2891 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
2892 fi
2893
2894 # On Canadian crosses, we'll be searching the right directories for
2895 # the previously-installed cross compiler, so don't bother to add
2896 # flags for directories within the install tree of the compiler
2897 # being built; programs in there won't even run.
2898 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2899 # Search for pre-installed headers if nothing else fits.
2900 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2901 fi
2902
2903 if test "x${use_gnu_ld}" = x &&
2904 echo " ${configdirs} " | grep " ld " > /dev/null ; then
2905 # Arrange for us to find uninstalled linker scripts.
2906 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2907 fi
2908
2909 # Search for other target-specific linker scripts and such.
2910 case "${target}" in
2911 mep*)
2912 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
2913 ;;
2914 esac
2915
2916 # Makefile fragments.
2917 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2918 do
2919 eval fragval=\$$frag
2920 if test $fragval != /dev/null; then
2921 eval $frag=${srcdir}/$fragval
2922 fi
2923 done
2924 AC_SUBST_FILE(host_makefile_frag)
2925 AC_SUBST_FILE(target_makefile_frag)
2926 AC_SUBST_FILE(alphaieee_frag)
2927 AC_SUBST_FILE(ospace_frag)
2928
2929 # Miscellanea: directories, flags, etc.
2930 AC_SUBST(RPATH_ENVVAR)
2931 AC_SUBST(GCC_SHLIB_SUBDIR)
2932 AC_SUBST(tooldir)
2933 AC_SUBST(build_tooldir)
2934 AC_SUBST(CONFIGURE_GDB_TK)
2935 AC_SUBST(GDB_TK)
2936 AC_SUBST(INSTALL_GDB_TK)
2937
2938 # Build module lists & subconfigure args.
2939 AC_SUBST(build_configargs)
2940 AC_SUBST(build_configdirs)
2941
2942 # Host module lists & subconfigure args.
2943 AC_SUBST(host_configargs)
2944 AC_SUBST(configdirs)
2945 AC_SUBST(target_configdirs)
2946
2947 # Target module lists & subconfigure args.
2948 AC_SUBST(target_configargs)
2949
2950
2951 # Build tools.
2952 AC_SUBST(AR_FOR_BUILD)
2953 AC_SUBST(AS_FOR_BUILD)
2954 AC_SUBST(CC_FOR_BUILD)
2955 AC_SUBST(CFLAGS_FOR_BUILD)
2956 AC_SUBST(CXXFLAGS_FOR_BUILD)
2957 AC_SUBST(CXX_FOR_BUILD)
2958 AC_SUBST(DLLTOOL_FOR_BUILD)
2959 AC_SUBST(GCJ_FOR_BUILD)
2960 AC_SUBST(GFORTRAN_FOR_BUILD)
2961 AC_SUBST(GOC_FOR_BUILD)
2962 AC_SUBST(LDFLAGS_FOR_BUILD)
2963 AC_SUBST(LD_FOR_BUILD)
2964 AC_SUBST(NM_FOR_BUILD)
2965 AC_SUBST(RANLIB_FOR_BUILD)
2966 AC_SUBST(WINDMC_FOR_BUILD)
2967 AC_SUBST(WINDRES_FOR_BUILD)
2968
2969 # Generate default definitions for YACC, M4, LEX and other programs that run
2970 # on the build machine. These are used if the Makefile can't locate these
2971 # programs in objdir.
2972 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2973
2974 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2975 case " $build_configdirs " in
2976 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2977 esac
2978
2979 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2980 case " $build_configdirs " in
2981 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2982 esac
2983
2984 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2985 case " $build_configdirs " in
2986 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2987 esac
2988
2989 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2990 case " $build_configdirs " in
2991 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2992 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2993 esac
2994
2995 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2996 case " $build_configdirs " in
2997 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2998 esac
2999
3000 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3001 case " $build_configdirs " in
3002 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3003 *)
3004 changequote(,)
3005 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3006 # higher, else we use the "missing" dummy.
3007 if ${MAKEINFO} --version \
3008 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3009 :
3010 else
3011 MAKEINFO="$MISSING makeinfo"
3012 fi
3013 ;;
3014 changequote([,])
3015 esac
3016
3017 # FIXME: expect and dejagnu may become build tools?
3018
3019 AC_CHECK_PROGS(EXPECT, expect, expect)
3020 case " $configdirs " in
3021 *" expect "*)
3022 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3023 ;;
3024 esac
3025
3026 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3027 case " $configdirs " in
3028 *" dejagnu "*)
3029 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3030 ;;
3031 esac
3032
3033
3034 # Host tools.
3035 NCN_STRICT_CHECK_TOOLS(AR, ar)
3036 NCN_STRICT_CHECK_TOOLS(AS, as)
3037 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3038 NCN_STRICT_CHECK_TOOLS(LD, ld)
3039 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3040 NCN_STRICT_CHECK_TOOLS(NM, nm)
3041 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3042 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3043 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3044 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3045 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3046 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3047 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3048 AC_SUBST(CC)
3049 AC_SUBST(CXX)
3050 AC_SUBST(CFLAGS)
3051 AC_SUBST(CXXFLAGS)
3052
3053 # Target tools.
3054 AC_ARG_WITH([build-time-tools],
3055 [AS_HELP_STRING([--with-build-time-tools=PATH],
3056 [use given path to find target tools during the build])],
3057 [case x"$withval" in
3058 x/*) ;;
3059 *)
3060 with_build_time_tools=
3061 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3062 ;;
3063 esac],
3064 [with_build_time_tools=])
3065
3066 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3067 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3068 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3069 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
3070 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3071 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3072
3073 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3074 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3075 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3076 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3077 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3078 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3079 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3080 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3081 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3082 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3083 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3084 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3085
3086 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3087
3088 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3089 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3090 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3091 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3092 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3093 [gcc/g++ -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$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
3094 c++)
3095 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3096 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
3097 c++)
3098 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3099 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3100 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
3101 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
3102 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3103 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3104 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3105 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3106 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3107 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3108 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3109 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3110 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3111 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3112 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3113 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3114 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3115
3116 AC_SUBST(FLAGS_FOR_TARGET)
3117 AC_SUBST(RAW_CXX_FOR_TARGET)
3118
3119 # Certain tools may need extra flags.
3120 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3121 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3122 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3123
3124 # When building target libraries, except in a Canadian cross, we use
3125 # the same toolchain as the compiler we just built.
3126 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3127 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3128 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3129 if test $host = $build; then
3130 case " $configdirs " in
3131 *" gcc "*)
3132 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3133 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3134 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3135 ;;
3136 esac
3137 fi
3138
3139 AC_SUBST(COMPILER_AS_FOR_TARGET)
3140 AC_SUBST(COMPILER_LD_FOR_TARGET)
3141 AC_SUBST(COMPILER_NM_FOR_TARGET)
3142
3143 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3144 AC_ARG_ENABLE(maintainer-mode,
3145 [AS_HELP_STRING([--enable-maintainer-mode],
3146 [enable make rules and dependencies not useful
3147 (and sometimes confusing) to the casual installer])],
3148 USE_MAINTAINER_MODE=$enableval,
3149 USE_MAINTAINER_MODE=no)
3150 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3151 AC_SUBST(MAINTAINER_MODE_TRUE)
3152 AC_SUBST(MAINTAINER_MODE_FALSE)
3153 if test "$USE_MAINTAINER_MODE" = yes; then
3154 MAINTAINER_MODE_TRUE=
3155 MAINTAINER_MODE_FALSE='#'
3156 else
3157 MAINTAINER_MODE_TRUE='#'
3158 MAINTAINER_MODE_FALSE=
3159 fi
3160 MAINT=$MAINTAINER_MODE_TRUE
3161 AC_SUBST(MAINT)dnl
3162
3163 # ---------------------
3164 # GCC bootstrap support
3165 # ---------------------
3166
3167 # Stage specific cflags for build.
3168 stage1_cflags="-g"
3169 case $build in
3170 vax-*-*)
3171 case ${GCC} in
3172 yes) stage1_cflags="-g -Wa,-J" ;;
3173 *) stage1_cflags="-g -J" ;;
3174 esac ;;
3175 esac
3176
3177 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
3178 if test "$GCC" = yes -a "$ENABLE_BUILD_WITH_CXX" != yes; then
3179 saved_CFLAGS="$CFLAGS"
3180
3181 # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
3182 CFLAGS="$CFLAGS -fkeep-inline-functions"
3183 AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
3184 AC_TRY_COMPILE([
3185 #if (__GNUC__ < 3) \
3186 || (__GNUC__ == 3 && (__GNUC_MINOR__ < 3 \
3187 || (__GNUC_MINOR__ == 3 && __GNUC_PATCHLEVEL__ < 1)))
3188 #error http://gcc.gnu.org/PR29382
3189 #endif
3190 ],,
3191 [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
3192 [AC_MSG_RESULT([no])])
3193
3194 CFLAGS="$saved_CFLAGS"
3195 fi
3196
3197 AC_SUBST(stage1_cflags)
3198
3199 # Enable --enable-checking in stage1 of the compiler.
3200 AC_ARG_ENABLE(stage1-checking,
3201 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3202 [choose additional checking for stage1 of the compiler])],
3203 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3204 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3205 stage1_checking=--enable-checking=yes,types
3206 else
3207 stage1_checking=--enable-checking=$enable_checking,types
3208 fi])
3209 AC_SUBST(stage1_checking)
3210
3211 # Enable -Werror in bootstrap stage2 and later.
3212 AC_ARG_ENABLE(werror,
3213 [AS_HELP_STRING([--enable-werror],
3214 [enable -Werror in bootstrap stage2 and later])], [],
3215 [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3216 enable_werror=yes
3217 else
3218 enable_werror=no
3219 fi])
3220 case ${enable_werror} in
3221 yes) stage2_werror_flag="--enable-werror-always" ;;
3222 *) stage2_werror_flag="" ;;
3223 esac
3224 AC_SUBST(stage2_werror_flag)
3225
3226 # If using ENABLE_BUILD_POSTSTAGE1_WITH_CXX, pass
3227 # --enable-build-with-cxx after stage1.
3228 if test "$ENABLE_BUILD_POSTSTAGE1_WITH_CXX" = "yes"; then
3229 POSTSTAGE1_CONFIGURE_FLAGS=--enable-build-with-cxx
3230 else
3231 POSTSTAGE1_CONFIGURE_FLAGS=
3232 fi
3233 AC_SUBST(POSTSTAGE1_CONFIGURE_FLAGS)
3234
3235 # Specify what files to not compare during bootstrap.
3236
3237 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3238 case "$target" in
3239 hppa*64*-*-hpux*) ;;
3240 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
3241 esac
3242 case " $configdirs " in
3243 *" ppl "*) compare_exclusions="$compare_exclusions | ppl/src/ppl-config.o" ;;
3244 esac
3245 AC_SUBST(compare_exclusions)
3246
3247 AC_CONFIG_FILES([Makefile],
3248 [sed "$extrasub_build" Makefile |
3249 sed "$extrasub_host" |
3250 sed "$extrasub_target" > mf$$
3251 mv -f mf$$ Makefile],
3252 [extrasub_build="$extrasub_build"
3253 extrasub_host="$extrasub_host"
3254 extrasub_target="$extrasub_target"])
3255 AC_OUTPUT
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