]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blob - configure.ac
2011-11-09 Roland McGrath <mcgrathr@google.com>
[thirdparty/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* | *-*-irix6* | *-*-osf* | *-*-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-sgi-irix6.* | 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 mips*-*-irix6*)
689 # Linking libjava exceeds command-line length limits on at least
690 # IRIX 6.2, but not on IRIX 6.5.
691 # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
692 # <oldham@codesourcery.com>
693 noconfigdirs="$noconfigdirs ${libgcj}"
694 ;;
695 *-*-lynxos*)
696 noconfigdirs="$noconfigdirs ${libgcj}"
697 ;;
698 esac
699
700 # Default libgloss CPU subdirectory.
701 libgloss_dir="$target_cpu"
702
703 case "${target}" in
704 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
705 libgloss_dir=wince
706 ;;
707 arm*-*-*)
708 libgloss_dir=arm
709 ;;
710 cris-*-* | crisv32-*-*)
711 libgloss_dir=cris
712 ;;
713 hppa*-*-*)
714 libgloss_dir=pa
715 ;;
716 i[[3456789]]86-*-*)
717 libgloss_dir=i386
718 ;;
719 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
720 libgloss_dir=m68hc11
721 ;;
722 m68*-*-* | fido-*-*)
723 libgloss_dir=m68k
724 ;;
725 mips*-*-*)
726 libgloss_dir=mips
727 ;;
728 powerpc*-*-*)
729 libgloss_dir=rs6000
730 ;;
731 sparc*-*-*)
732 libgloss_dir=sparc
733 ;;
734 esac
735
736 # Disable newlib and libgloss for various target OSes.
737 case "${target}" in
738 alpha*-dec-osf*)
739 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
740 ;;
741 i[[3456789]]86-*-linux*)
742 # This section makes it possible to build newlib natively on linux.
743 # If we are using a cross compiler then don't configure newlib.
744 if test x${is_cross_compiler} != xno ; then
745 noconfigdirs="$noconfigdirs target-newlib"
746 fi
747 noconfigdirs="$noconfigdirs target-libgloss"
748 # If we are not using a cross compiler, do configure newlib.
749 # Note however, that newlib will only be configured in this situation
750 # if the --with-newlib option has been given, because otherwise
751 # 'target-newlib' will appear in skipdirs.
752 ;;
753 i[[3456789]]86-*-rdos*)
754 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
755 ;;
756 sh*-*-pe|mips*-*-pe|arm-wince-pe)
757 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
758 ;;
759 sparc-*-sunos4*)
760 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
761 ;;
762 *-*-aix*)
763 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
764 ;;
765 *-*-beos*)
766 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
767 ;;
768 *-*-chorusos)
769 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
770 ;;
771 *-*-dragonfly*)
772 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
773 ;;
774 *-*-freebsd*)
775 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
776 ;;
777 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
778 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
779 ;;
780 *-*-lynxos*)
781 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
782 ;;
783 *-*-mingw*)
784 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
785 ;;
786 *-*-netbsd*)
787 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
788 ;;
789 *-*-netware*)
790 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
791 ;;
792 *-*-tpf*)
793 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
794 ;;
795 *-*-uclinux*)
796 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
797 ;;
798 *-*-vxworks*)
799 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
800 ;;
801 esac
802
803 case "${target}" in
804 *-*-chorusos)
805 ;;
806 powerpc-*-darwin*)
807 noconfigdirs="$noconfigdirs ld gas gdb gprof"
808 noconfigdirs="$noconfigdirs sim target-rda"
809 ;;
810 i[[3456789]]86-*-darwin*)
811 noconfigdirs="$noconfigdirs ld gprof"
812 noconfigdirs="$noconfigdirs sim target-rda"
813 ;;
814 x86_64-*-darwin[[912]]*)
815 noconfigdirs="$noconfigdirs ld gas gprof"
816 noconfigdirs="$noconfigdirs sim target-rda"
817 ;;
818 *-*-darwin*)
819 noconfigdirs="$noconfigdirs ld gas gdb gprof"
820 noconfigdirs="$noconfigdirs sim target-rda"
821 ;;
822 *-*-dragonfly*)
823 ;;
824 *-*-freebsd*)
825 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
826 && test -f /usr/local/include/gmp.h; then
827 with_gmp=/usr/local
828 fi
829 ;;
830 *-*-kaos*)
831 # Remove unsupported stuff on all kaOS configurations.
832 noconfigdirs="$noconfigdirs target-libgloss"
833 ;;
834 *-*-netbsd*)
835 ;;
836 *-*-netware*)
837 ;;
838 *-*-rtems*)
839 noconfigdirs="$noconfigdirs target-libgloss"
840 ;;
841 # The tpf target doesn't support gdb yet.
842 *-*-tpf*)
843 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
844 ;;
845 *-*-uclinux*)
846 noconfigdirs="$noconfigdirs target-rda"
847 ;;
848 *-*-vxworks*)
849 ;;
850 alpha*-dec-osf*)
851 # ld works, but does not support shared libraries.
852 # gas doesn't generate exception information.
853 noconfigdirs="$noconfigdirs gas ld"
854 ;;
855 alpha*-*-*vms*)
856 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
857 ;;
858 alpha*-*-*)
859 # newlib is not 64 bit ready
860 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
861 ;;
862 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
863 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
864 ;;
865 arc-*-*)
866 noconfigdirs="$noconfigdirs target-libgloss"
867 ;;
868 arm-*-pe*)
869 noconfigdirs="$noconfigdirs target-libgloss"
870 ;;
871 arm-*-riscix*)
872 noconfigdirs="$noconfigdirs ld target-libgloss"
873 ;;
874 c4x-*-* | tic4x-*-*)
875 noconfigdirs="$noconfigdirs target-libgloss"
876 ;;
877 tic54x-*-*)
878 noconfigdirs="$noconfigdirs target-libgloss gdb"
879 ;;
880 cr16-*-*)
881 noconfigdirs="$noconfigdirs gdb"
882 ;;
883 d10v-*-*)
884 noconfigdirs="$noconfigdirs target-libgloss"
885 ;;
886 d30v-*-*)
887 noconfigdirs="$noconfigdirs gdb"
888 ;;
889 fr30-*-elf*)
890 noconfigdirs="$noconfigdirs gdb"
891 ;;
892 moxie-*-*)
893 noconfigdirs="$noconfigdirs gprof"
894 ;;
895 h8300*-*-*)
896 noconfigdirs="$noconfigdirs target-libgloss"
897 ;;
898 h8500-*-*)
899 noconfigdirs="$noconfigdirs target-libgloss"
900 ;;
901 hppa1.1-*-osf* | hppa1.1-*-bsd* )
902 ;;
903 hppa*64*-*-linux*)
904 ;;
905 hppa*-*-linux*)
906 ;;
907 hppa*-*-*elf* | \
908 hppa*-*-lites* | \
909 hppa*-*-openbsd* | \
910 hppa*64*-*-*)
911 ;;
912 hppa*-hp-hpux11*)
913 noconfigdirs="$noconfigdirs ld"
914 ;;
915 hppa*-*-pro*)
916 ;;
917 hppa*-*-*)
918 noconfigdirs="$noconfigdirs ld"
919 ;;
920 i960-*-*)
921 noconfigdirs="$noconfigdirs gdb"
922 ;;
923 ia64*-*-elf*)
924 # No gdb support yet.
925 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
926 ;;
927 ia64*-**-hpux*)
928 # No ld support yet.
929 noconfigdirs="$noconfigdirs libgui itcl ld"
930 ;;
931 ia64*-*-*vms*)
932 # No gdb or ld support yet.
933 noconfigdirs="$noconfigdirs readline libgui itcl gdb ld"
934 ;;
935 i[[3456789]]86-w64-mingw*)
936 ;;
937 i[[3456789]]86-*-mingw*)
938 target_configdirs="$target_configdirs target-winsup"
939 ;;
940 *-*-cygwin*)
941 target_configdirs="$target_configdirs target-libtermcap target-winsup"
942 noconfigdirs="$noconfigdirs target-libgloss"
943 # always build newlib if winsup directory is present.
944 if test -d "$srcdir/winsup/cygwin"; then
945 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
946 elif test -d "$srcdir/newlib"; then
947 echo "Warning: winsup/cygwin is missing so newlib can't be built."
948 fi
949 ;;
950 i[[3456789]]86-*-pe)
951 noconfigdirs="$noconfigdirs target-libgloss"
952 ;;
953 i[[3456789]]86-*-sco3.2v5*)
954 # The linker does not yet know about weak symbols in COFF,
955 # and is not configured to handle mixed ELF and COFF.
956 noconfigdirs="$noconfigdirs ld target-libgloss"
957 ;;
958 i[[3456789]]86-*-sco*)
959 noconfigdirs="$noconfigdirs gprof target-libgloss"
960 ;;
961 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
962 noconfigdirs="$noconfigdirs target-libgloss"
963 ;;
964 i[[3456789]]86-*-sysv4*)
965 noconfigdirs="$noconfigdirs target-libgloss"
966 ;;
967 i[[3456789]]86-*-beos*)
968 noconfigdirs="$noconfigdirs gdb"
969 ;;
970 i[[3456789]]86-*-rdos*)
971 noconfigdirs="$noconfigdirs gdb"
972 ;;
973 mmix-*-*)
974 noconfigdirs="$noconfigdirs gdb"
975 ;;
976 mt-*-*)
977 noconfigdirs="$noconfigdirs sim"
978 ;;
979 powerpc-*-aix*)
980 # copied from rs6000-*-* entry
981 noconfigdirs="$noconfigdirs gprof"
982 ;;
983 powerpc*-*-winnt* | powerpc*-*-pe*)
984 target_configdirs="$target_configdirs target-winsup"
985 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
986 # always build newlib.
987 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
988 ;;
989 # This is temporary until we can link against shared libraries
990 powerpcle-*-solaris*)
991 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
992 ;;
993 powerpc-*-beos*)
994 noconfigdirs="$noconfigdirs gdb"
995 ;;
996 rs6000-*-lynxos*)
997 noconfigdirs="$noconfigdirs gprof"
998 ;;
999 rs6000-*-aix*)
1000 noconfigdirs="$noconfigdirs gprof"
1001 ;;
1002 rs6000-*-*)
1003 noconfigdirs="$noconfigdirs gprof"
1004 ;;
1005 m68k-apollo-*)
1006 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1007 ;;
1008 microblaze*)
1009 noconfigdirs="$noconfigdirs gprof"
1010 ;;
1011 mips*-sde-elf*)
1012 if test x$with_newlib = xyes; then
1013 noconfigdirs="$noconfigdirs gprof"
1014 fi
1015 ;;
1016 mips*-*-irix5*)
1017 noconfigdirs="$noconfigdirs gprof target-libgloss"
1018 ;;
1019 mips*-*-irix6*)
1020 noconfigdirs="$noconfigdirs gprof target-libgloss"
1021 ;;
1022 mips*-*-bsd*)
1023 noconfigdirs="$noconfigdirs gprof target-libgloss"
1024 ;;
1025 mips*-*-linux*)
1026 ;;
1027 mips*-*-*)
1028 noconfigdirs="$noconfigdirs gprof"
1029 ;;
1030 sh-*-* | sh64-*-*)
1031 case "${target}" in
1032 sh*-*-elf)
1033 ;;
1034 *)
1035 noconfigdirs="$noconfigdirs target-libgloss" ;;
1036 esac
1037 ;;
1038 sparc-*-sunos4*)
1039 if test x${is_cross_compiler} = xno ; then
1040 use_gnu_ld=no
1041 fi
1042 ;;
1043 tic6x-*-*)
1044 noconfigdirs="$noconfigdirs sim"
1045 ;;
1046 tilepro-*-* | tilegx-*-*)
1047 noconfigdirs="$noconfigdirs sim"
1048 ;;
1049 v810-*-*)
1050 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1051 ;;
1052 vax-*-*)
1053 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1054 ;;
1055 esac
1056
1057 # If we aren't building newlib, then don't build libgloss, since libgloss
1058 # depends upon some newlib header files.
1059 case "${noconfigdirs}" in
1060 *target-libgloss*) ;;
1061 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1062 esac
1063
1064 # Work in distributions that contain no compiler tools, like Autoconf.
1065 host_makefile_frag=/dev/null
1066 if test -d ${srcdir}/config ; then
1067 case "${host}" in
1068 i[[3456789]]86-*-msdosdjgpp*)
1069 host_makefile_frag="config/mh-djgpp"
1070 ;;
1071 *-cygwin*)
1072 ACX_CHECK_CYGWIN_CAT_WORKS
1073 host_makefile_frag="config/mh-cygwin"
1074 ;;
1075 *-mingw*)
1076 host_makefile_frag="config/mh-mingw"
1077 ;;
1078 *-interix*)
1079 host_makefile_frag="config/mh-interix"
1080 ;;
1081 hppa*-hp-hpux10*)
1082 host_makefile_frag="config/mh-pa-hpux10"
1083 ;;
1084 hppa*-hp-hpux*)
1085 host_makefile_frag="config/mh-pa"
1086 ;;
1087 hppa*-*)
1088 host_makefile_frag="config/mh-pa"
1089 ;;
1090 *-*-darwin*)
1091 host_makefile_frag="config/mh-darwin"
1092 ;;
1093 powerpc-*-aix*)
1094 host_makefile_frag="config/mh-ppc-aix"
1095 ;;
1096 rs6000-*-aix*)
1097 host_makefile_frag="config/mh-ppc-aix"
1098 ;;
1099 esac
1100 fi
1101
1102 if test "${build}" != "${host}" ; then
1103 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1104 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1105 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1106 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1107 GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
1108 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1109 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1110 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1111 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1112 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1113 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1114 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1115 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1116 else
1117 AR_FOR_BUILD="\$(AR)"
1118 AS_FOR_BUILD="\$(AS)"
1119 CC_FOR_BUILD="\$(CC)"
1120 CXX_FOR_BUILD="\$(CXX)"
1121 GCJ_FOR_BUILD="\$(GCJ)"
1122 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1123 GOC_FOR_BUILD="\$(GOC)"
1124 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1125 LD_FOR_BUILD="\$(LD)"
1126 NM_FOR_BUILD="\$(NM)"
1127 RANLIB_FOR_BUILD="\$(RANLIB)"
1128 WINDRES_FOR_BUILD="\$(WINDRES)"
1129 WINDMC_FOR_BUILD="\$(WINDMC)"
1130 fi
1131
1132 AC_PROG_CC
1133 AC_PROG_CXX
1134
1135 # We must set the default linker to the linker used by gcc for the correct
1136 # operation of libtool. If LD is not defined and we are using gcc, try to
1137 # set the LD default to the ld used by gcc.
1138 if test -z "$LD"; then
1139 if test "$GCC" = yes; then
1140 case $build in
1141 *-*-mingw*)
1142 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1143 *)
1144 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1145 esac
1146 case $gcc_prog_ld in
1147 # Accept absolute paths.
1148 [[\\/]* | [A-Za-z]:[\\/]*)]
1149 LD="$gcc_prog_ld" ;;
1150 esac
1151 fi
1152 fi
1153
1154 ACX_PROG_GNAT
1155 ACX_PROG_CMP_IGNORE_INITIAL
1156
1157 AC_ARG_ENABLE([bootstrap],
1158 [AS_HELP_STRING([--enable-bootstrap],
1159 [enable bootstrapping @<:@yes if native build@:>@])],,
1160 enable_bootstrap=default)
1161
1162 # Issue errors and warnings for invalid/strange bootstrap combinations.
1163 if test -r $srcdir/gcc/configure; then
1164 have_compiler=yes
1165 else
1166 have_compiler=no
1167 fi
1168
1169 case "$have_compiler:$host:$target:$enable_bootstrap" in
1170 *:*:*:no) ;;
1171
1172 # Default behavior. Enable bootstrap if we have a compiler
1173 # and we are in a native configuration.
1174 yes:$build:$build:default)
1175 enable_bootstrap=yes ;;
1176
1177 *:*:*:default)
1178 enable_bootstrap=no ;;
1179
1180 # We have a compiler and we are in a native configuration, bootstrap is ok
1181 yes:$build:$build:yes)
1182 ;;
1183
1184 # Other configurations, but we have a compiler. Assume the user knows
1185 # what he's doing.
1186 yes:*:*:yes)
1187 AC_MSG_WARN([trying to bootstrap a cross compiler])
1188 ;;
1189
1190 # No compiler: if they passed --enable-bootstrap explicitly, fail
1191 no:*:*:yes)
1192 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1193
1194 # Fail if wrong command line
1195 *)
1196 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1197 ;;
1198 esac
1199
1200 # See if we are building gcc with C++.
1201 AC_ARG_ENABLE(build-with-cxx,
1202 [AS_HELP_STRING([--enable-build-with-cxx],
1203 [build with C++ compiler instead of C compiler])],
1204 ENABLE_BUILD_WITH_CXX=$enableval,
1205 ENABLE_BUILD_WITH_CXX=no)
1206
1207 # Build stage1 with C and build stages 2 and 3 with C++.
1208 AC_ARG_ENABLE(build-poststage1-with-cxx,
1209 [AS_HELP_STRING([--enable-build-poststage1-with-cxx],
1210 [build stages 2 and 3 with C++, not C])],
1211 ENABLE_BUILD_POSTSTAGE1_WITH_CXX=$enableval,
1212 ENABLE_BUILD_POSTSTAGE1_WITH_CXX=yes)
1213
1214 # Used for setting $lt_cv_objdir
1215 _LT_CHECK_OBJDIR
1216
1217 # Check for GMP, MPFR and MPC
1218 gmplibs="-lmpc -lmpfr -lgmp"
1219 gmpinc=
1220 have_gmp=no
1221
1222 # Specify a location for mpc
1223 # check for this first so it ends up on the link line before mpfr.
1224 AC_ARG_WITH(mpc,
1225 [AS_HELP_STRING([--with-mpc=PATH],
1226 [specify prefix directory for installed MPC package.
1227 Equivalent to --with-mpc-include=PATH/include
1228 plus --with-mpc-lib=PATH/lib])])
1229 AC_ARG_WITH(mpc-include,
1230 [AS_HELP_STRING([--with-mpc-include=PATH],
1231 [specify directory for installed MPC include files])])
1232 AC_ARG_WITH(mpc-lib,
1233 [AS_HELP_STRING([--with-mpc-lib=PATH],
1234 [specify directory for the installed MPC library])])
1235
1236 if test "x$with_mpc" != x; then
1237 gmplibs="-L$with_mpc/lib $gmplibs"
1238 gmpinc="-I$with_mpc/include $gmpinc"
1239 fi
1240 if test "x$with_mpc_include" != x; then
1241 gmpinc="-I$with_mpc_include $gmpinc"
1242 fi
1243 if test "x$with_mpc_lib" != x; then
1244 gmplibs="-L$with_mpc_lib $gmplibs"
1245 fi
1246 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1247 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1248 gmpinc='-I$$s/mpc/src '"$gmpinc"
1249 # Do not test the mpc version. Assume that it is sufficient, since
1250 # it is in the source tree, and the library has not been built yet
1251 # but it would be included on the link line in the version check below
1252 # hence making the test fail.
1253 have_gmp=yes
1254 fi
1255
1256 # Specify a location for mpfr
1257 # check for this first so it ends up on the link line before gmp.
1258 AC_ARG_WITH(mpfr-dir,
1259 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1260 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1261 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1262
1263 AC_ARG_WITH(mpfr,
1264 [AS_HELP_STRING([--with-mpfr=PATH],
1265 [specify prefix directory for installed MPFR package.
1266 Equivalent to --with-mpfr-include=PATH/include
1267 plus --with-mpfr-lib=PATH/lib])])
1268 AC_ARG_WITH(mpfr-include,
1269 [AS_HELP_STRING([--with-mpfr-include=PATH],
1270 [specify directory for installed MPFR include files])])
1271 AC_ARG_WITH(mpfr-lib,
1272 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1273 [specify directory for the installed MPFR library])])
1274
1275 if test "x$with_mpfr" != x; then
1276 gmplibs="-L$with_mpfr/lib $gmplibs"
1277 gmpinc="-I$with_mpfr/include $gmpinc"
1278 fi
1279 if test "x$with_mpfr_include" != x; then
1280 gmpinc="-I$with_mpfr_include $gmpinc"
1281 fi
1282 if test "x$with_mpfr_lib" != x; then
1283 gmplibs="-L$with_mpfr_lib $gmplibs"
1284 fi
1285 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1286 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir $gmplibs"
1287 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1288 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir"
1289 # Do not test the mpfr version. Assume that it is sufficient, since
1290 # it is in the source tree, and the library has not been built yet
1291 # but it would be included on the link line in the version check below
1292 # hence making the test fail.
1293 have_gmp=yes
1294 fi
1295
1296 # Specify a location for gmp
1297 AC_ARG_WITH(gmp-dir,
1298 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1299 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1300 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1301
1302 AC_ARG_WITH(gmp,
1303 [AS_HELP_STRING([--with-gmp=PATH],
1304 [specify prefix directory for the installed GMP package.
1305 Equivalent to --with-gmp-include=PATH/include
1306 plus --with-gmp-lib=PATH/lib])])
1307 AC_ARG_WITH(gmp-include,
1308 [AS_HELP_STRING([--with-gmp-include=PATH],
1309 [specify directory for installed GMP include files])])
1310 AC_ARG_WITH(gmp-lib,
1311 [AS_HELP_STRING([--with-gmp-lib=PATH],
1312 [specify directory for the installed GMP library])])
1313
1314
1315 if test "x$with_gmp" != x; then
1316 gmplibs="-L$with_gmp/lib $gmplibs"
1317 gmpinc="-I$with_gmp/include $gmpinc"
1318 fi
1319 if test "x$with_gmp_include" != x; then
1320 gmpinc="-I$with_gmp_include $gmpinc"
1321 fi
1322 if test "x$with_gmp_lib" != x; then
1323 gmplibs="-L$with_gmp_lib $gmplibs"
1324 fi
1325 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1326 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1327 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1328 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1329 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1330 # Do not test the gmp version. Assume that it is sufficient, since
1331 # it is in the source tree, and the library has not been built yet
1332 # but it would be included on the link line in the version check below
1333 # hence making the test fail.
1334 have_gmp=yes
1335 fi
1336
1337 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1338 have_gmp=yes
1339 saved_CFLAGS="$CFLAGS"
1340 CFLAGS="$CFLAGS $gmpinc"
1341 # Check for the recommended and required versions of GMP.
1342 AC_MSG_CHECKING([for the correct version of gmp.h])
1343 AC_TRY_COMPILE([#include "gmp.h"],[
1344 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1345 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1346 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,0)
1347 choke me
1348 #endif
1349 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1350 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1351 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1352 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1353 choke me
1354 #endif
1355 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1356 [AC_MSG_RESULT([no]); have_gmp=no])
1357
1358 # If we have GMP, check the MPFR version.
1359 if test x"$have_gmp" = xyes; then
1360 # Check for the recommended and required versions of MPFR.
1361 AC_MSG_CHECKING([for the correct version of mpfr.h])
1362 AC_TRY_COMPILE([#include <gmp.h>
1363 #include <mpfr.h>],[
1364 #if MPFR_VERSION < MPFR_VERSION_NUM(2,3,1)
1365 choke me
1366 #endif
1367 ], [AC_TRY_COMPILE([#include <gmp.h>
1368 #include <mpfr.h>],[
1369 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1370 choke me
1371 #endif
1372 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1373 [AC_MSG_RESULT([no]); have_gmp=no])
1374 fi
1375
1376 # Check for the MPC header version.
1377 if test x"$have_gmp" = xyes ; then
1378 # Check for the recommended and required versions of MPC.
1379 AC_MSG_CHECKING([for the correct version of mpc.h])
1380 AC_TRY_COMPILE([#include <mpc.h>],[
1381 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1382 choke me
1383 #endif
1384 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1385 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1386 choke me
1387 #endif
1388 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1389 [AC_MSG_RESULT([no]); have_gmp=no])
1390 fi
1391
1392 # Now check the MPFR library.
1393 if test x"$have_gmp" = xyes; then
1394 saved_LIBS="$LIBS"
1395 LIBS="$LIBS $gmplibs"
1396 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1397 AC_TRY_LINK([#include <mpc.h>],[
1398 mpfr_t n;
1399 mpfr_t x;
1400 mpc_t c;
1401 int t;
1402 mpfr_init (n);
1403 mpfr_init (x);
1404 mpfr_atan2 (n, n, x, GMP_RNDN);
1405 mpfr_erfc (n, x, GMP_RNDN);
1406 mpfr_subnormalize (x, t, GMP_RNDN);
1407 mpfr_clear(n);
1408 mpfr_clear(x);
1409 mpc_init2 (c, 53);
1410 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1411 mpc_cosh (c, c, MPC_RNDNN);
1412 mpc_pow (c, c, c, MPC_RNDNN);
1413 mpc_acosh (c, c, MPC_RNDNN);
1414 mpc_clear (c);
1415 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1416 LIBS="$saved_LIBS"
1417 fi
1418
1419 CFLAGS="$saved_CFLAGS"
1420
1421 # The library versions listed in the error message below should match
1422 # the HARD-minimums enforced above.
1423 if test x$have_gmp != xyes; then
1424 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.3.1+ and MPC 0.8.0+.
1425 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1426 their locations. Source code for these libraries can be found at
1427 their respective hosting sites as well as at
1428 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1429 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1430 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1431 make sure that you have installed both the libraries and the header
1432 files. They may be located in separate packages.])
1433 fi
1434 fi
1435
1436 # Flags needed for both GMP, MPFR and/or MPC.
1437 AC_SUBST(gmplibs)
1438 AC_SUBST(gmpinc)
1439 AC_SUBST(extra_mpfr_configure_flags)
1440 AC_SUBST(extra_mpc_gmp_configure_flags)
1441 AC_SUBST(extra_mpc_mpfr_configure_flags)
1442
1443 # Allow host libstdc++ to be specified for static linking with PPL.
1444 AC_ARG_WITH(host-libstdcxx,
1445 [AS_HELP_STRING([--with-host-libstdcxx=L],
1446 [use linker arguments L to link with libstdc++
1447 when linking with PPL])])
1448
1449 case $with_host_libstdcxx in
1450 no|yes)
1451 AC_MSG_ERROR([-with-host-libstdcxx needs an argument])
1452 ;;
1453 esac
1454
1455 # Linker flags to use for stage1 or when not boostrapping.
1456 AC_ARG_WITH(stage1-ldflags,
1457 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1458 [if test "$withval" = "no" -o "$withval" = "yes"; then
1459 stage1_ldflags=
1460 else
1461 stage1_ldflags=$withval
1462 fi],
1463 [stage1_ldflags=])
1464 AC_SUBST(stage1_ldflags)
1465
1466 # Libraries to use for stage1 or when not bootstrapping.
1467 AC_ARG_WITH(stage1-libs,
1468 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1469 [if test "$withval" = "no" -o "$withval" = "yes"; then
1470 stage1_libs=
1471 else
1472 stage1_libs=$withval
1473 fi],
1474 [stage1_libs=$with_host_libstdcxx])
1475 AC_SUBST(stage1_libs)
1476
1477 # Libraries to use for stage2 and later builds. This defaults to the
1478 # argument passed to --with-host-libstdcxx.
1479 AC_ARG_WITH(boot-libs,
1480 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1481 [if test "$withval" = "no" -o "$withval" = "yes"; then
1482 poststage1_libs=
1483 else
1484 poststage1_libs=$withval
1485 fi],
1486 [poststage1_libs=$with_host_libstdcxx])
1487 AC_SUBST(poststage1_libs)
1488
1489 # Linker flags to use for stage2 and later builds.
1490 AC_ARG_WITH(boot-ldflags,
1491 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1492 [linker flags for stage2 and later])],
1493 [if test "$withval" = "no" -o "$withval" = "yes"; then
1494 poststage1_ldflags=
1495 else
1496 poststage1_ldflags=$withval
1497 fi],
1498 [poststage1_ldflags=
1499 # In stages 2 and 3, default to linking libstdc++ and libgcc
1500 # statically. But if the user explicitly specified the libraries to
1501 # use, trust that they are doing what they want.
1502 if test "$poststage1_libs" = ""; then
1503 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1504 fi])
1505 AC_SUBST(poststage1_ldflags)
1506
1507 # Check for PPL
1508 ppllibs=
1509 pplinc=
1510 pwllib=
1511
1512 AC_ARG_WITH(ppl,
1513 [AS_HELP_STRING([--with-ppl=PATH],
1514 [specify prefix directory for the installed PPL package.
1515 Equivalent to --with-ppl-include=PATH/include
1516 plus --with-ppl-lib=PATH/lib])])
1517 AC_ARG_WITH(ppl-include,
1518 [AS_HELP_STRING([--with-ppl-include=PATH],
1519 [specify directory for installed PPL include files])])
1520 AC_ARG_WITH(ppl-lib,
1521 [AS_HELP_STRING([--with-ppl-lib=PATH],
1522 [specify directory for the installed PPL library])])
1523
1524 AC_ARG_ENABLE(ppl-version-check,
1525 [AS_HELP_STRING([--disable-ppl-version-check],
1526 [disable check for PPL version])])
1527
1528 case $with_ppl in
1529 yes | no | "")
1530 ;;
1531 *)
1532 ppllibs="-L$with_ppl/lib"
1533 pplinc="-I$with_ppl/include $pplinc"
1534 if test -d "$with_ppl/lib" && test -d "$with_ppl/include"; then
1535 with_ppl=yes
1536 else
1537 AC_MSG_ERROR([cannot find directories "$with_ppl/lib" or "$with_ppl/include"])
1538 fi
1539 ;;
1540 esac
1541
1542 if test x"$with_ppl_include" != x; then
1543 pplinc="-I$with_ppl_include $pplinc"
1544 with_ppl=yes
1545 fi
1546
1547 if test "x$with_ppl_lib" != x; then
1548 ppllibs="-L$with_ppl_lib"
1549 with_ppl=yes
1550 fi
1551
1552 if test x"$with_ppl$with_ppl_include$with_ppl_lib" = x && test -d ${srcdir}/ppl; then
1553 if test x"$enable_watchdog" = xyes; then
1554 pwllib="-lpwl"
1555 fi
1556 ppllibs='-L$$r/$(HOST_SUBDIR)/ppl/interfaces/C/'"$lt_cv_objdir"' -L$$r/$(HOST_SUBDIR)/ppl/src/'"$lt_cv_objdir"
1557 pplinc='-I$$r/$(HOST_SUBDIR)/ppl/src -I$$r/$(HOST_SUBDIR)/ppl/interfaces/C '
1558 enable_ppl_version_check=no
1559 with_ppl=yes
1560 fi
1561
1562 if test "x$with_ppl" != xno; then
1563 if test "x$pwllib" = x; then
1564 saved_LIBS="$LIBS"
1565 LIBS="$LIBS $ppllibs -lstdc++ -lm"
1566 AC_CHECK_LIB(pwl, PWL_handle_timeout, [pwllib="-lpwl"])
1567 LIBS="$saved_LIBS"
1568 fi
1569
1570 ppllibs="$ppllibs -lppl_c -lppl $pwllib -lgmpxx"
1571
1572 if test "$enable_ppl_version_check" != no; then
1573 saved_CFLAGS="$CFLAGS"
1574 CFLAGS="$CFLAGS $pplinc $gmpinc"
1575 AC_MSG_CHECKING([for version 0.11 (revision 0 or later) of PPL])
1576 AC_TRY_COMPILE([#include "ppl_c.h"],[
1577 #if PPL_VERSION_MAJOR != 0 || PPL_VERSION_MINOR < 11
1578 choke me
1579 #endif
1580 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); ppllibs= ; pplinc= ; with_ppl=no ])
1581 CFLAGS="$saved_CFLAGS"
1582 fi
1583 fi
1584
1585 # Flags needed for PPL
1586 AC_SUBST(ppllibs)
1587 AC_SUBST(pplinc)
1588
1589
1590 # Check for CLOOG
1591
1592 dnl Provide configure switches and initialize clooginc & clooglibs
1593 dnl with user input.
1594 CLOOG_INIT_FLAGS
1595 if test "x$with_ppl" = "xno"; then
1596 dnl Only execute fail-action, if CLooG has been requested.
1597 CLOOG_REQUESTED([graphite_requested=yes], [graphite_requested=no])
1598 if test "${graphite_requested}" = yes; then
1599 AC_MSG_ERROR([Unable to find a usable PPL. See config.log for details.])
1600 fi
1601 with_cloog=no
1602 fi
1603 if test "x${with_cloog}" = x && test "x${with_cloog_include}" = x \
1604 && test "x${with_cloog_lib}" = x && test -d ${srcdir}/cloog; then
1605 clooglibs='-L$$r/$(HOST_SUBDIR)/cloog/'"$lt_cv_objdir"' '
1606 clooginc='-I$$r/$(HOST_SUBDIR)/cloog/include -I$$s/cloog/include '
1607 fi
1608 if test "x$with_cloog" != "xno"; then
1609 dnl The minimal version of CLooG required for Graphite.
1610 dnl
1611 dnl If we use CLooG-Legacy, the provided version information is
1612 dnl ignored.
1613 CLOOG_CHECK_VERSION(0,16,1)
1614
1615 dnl Only execute fail-action, if CLooG has been requested.
1616 CLOOG_IF_FAILED([
1617 AC_MSG_ERROR([Unable to find a usable CLooG. See config.log for details.])])
1618 fi
1619
1620 # Check for LTO support.
1621 AC_ARG_ENABLE(lto,
1622 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1623 enable_lto=$enableval,
1624 enable_lto=yes; default_enable_lto=yes)
1625
1626 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1627 build_lto_plugin=yes
1628 ],[if test x"$default_enable_lto" = x"yes" ; then
1629 case $target in
1630 *-apple-darwin9* | *-cygwin* | *-mingw*) ;;
1631 # On other non-ELF platforms, LTO has yet to be validated.
1632 *) enable_lto=no ;;
1633 esac
1634 else
1635 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1636 # It would also be nice to check the binutils support, but we don't
1637 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1638 # warn during gcc/ subconfigure; unless you're bootstrapping with
1639 # -flto it won't be needed until after installation anyway.
1640 case $target in
1641 *-cygwin* | *-mingw* | *-apple-darwin*) ;;
1642 *) if test x"$enable_lto" = x"yes"; then
1643 AC_MSG_ERROR([LTO support is not enabled for this target.])
1644 fi
1645 ;;
1646 esac
1647 fi
1648 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1649 # Build it unless LTO was explicitly disabled.
1650 case $target in
1651 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1652 *) ;;
1653 esac
1654 ])
1655
1656
1657 # By default, C is the only stage 1 language.
1658 stage1_languages=,c,
1659
1660 # Target libraries that we bootstrap.
1661 bootstrap_target_libs=,target-libgcc,
1662
1663 # Figure out what language subdirectories are present.
1664 # Look if the user specified --enable-languages="..."; if not, use
1665 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1666 # go away some day.
1667 # NB: embedded tabs in this IF block -- do not untabify
1668 if test -d ${srcdir}/gcc; then
1669 if test x"${enable_languages+set}" != xset; then
1670 if test x"${LANGUAGES+set}" = xset; then
1671 enable_languages="${LANGUAGES}"
1672 echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1673 else
1674 enable_languages=all
1675 fi
1676 else
1677 if test x"${enable_languages}" = x ||
1678 test x"${enable_languages}" = xyes;
1679 then
1680 echo configure.in: --enable-languages needs at least one language argument 1>&2
1681 exit 1
1682 fi
1683 fi
1684 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1685
1686 # 'f95' is the old name for the 'fortran' language. We issue a warning
1687 # and make the substitution.
1688 case ,${enable_languages}, in
1689 *,f95,*)
1690 echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1691 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1692 ;;
1693 esac
1694
1695 # If bootstrapping, then using --enable-build-with-cxx or
1696 # --enable-build-poststage1-with-cxx requires enabling C++.
1697 case ",$enable_languages,:,$ENABLE_BUILD_WITH_CXX,$ENABLE_BUILD_POSTSTAGE1_WITH_CXX,:$enable_bootstrap" in
1698 *,c++,*:*:*) ;;
1699 *:*,yes,*:yes)
1700 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1701 enable_languages="${enable_languages},c++"
1702 else
1703 AC_MSG_ERROR([bootstrapping with --enable-build-with-cxx or --enable-build-poststage1-with-cxx requires c++ sources])
1704 fi
1705 ;;
1706 esac
1707
1708 # First scan to see if an enabled language requires some other language.
1709 # We assume that a given config-lang.in will list all the language
1710 # front ends it requires, even if some are required indirectly.
1711 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1712 case ${lang_frag} in
1713 ..) ;;
1714 # The odd quoting in the next line works around
1715 # an apparent bug in bash 1.12 on linux.
1716 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1717 *)
1718 # From the config-lang.in, get $language, $lang_requires, and
1719 # $lang_requires_boot_languages.
1720 language=
1721 lang_requires=
1722 lang_requires_boot_languages=
1723 . ${lang_frag}
1724 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1725 case ,${enable_languages}, in
1726 *,$other,*) ;;
1727 *,all,*) ;;
1728 *,$language,*)
1729 echo " \`$other' language required by \`$language'; enabling" 1>&2
1730 enable_languages="${enable_languages},${other}"
1731 ;;
1732 esac
1733 done
1734 for other in ${lang_requires_boot_languages} ; do
1735 if test "$other" != "c"; then
1736 case ,${enable_stage1_languages}, in
1737 *,$other,*) ;;
1738 *,all,*) ;;
1739 *)
1740 case ,${enable_languages}, in
1741 *,$language,*)
1742 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1743 enable_stage1_languages="$enable_stage1_languages,${other}"
1744 ;;
1745 esac
1746 ;;
1747 esac
1748 fi
1749 done
1750 ;;
1751 esac
1752 done
1753
1754 new_enable_languages=,c,
1755
1756 # If LTO is enabled, add the LTO front end.
1757 extra_host_libiberty_configure_flags=
1758 if test "$enable_lto" = "yes" ; then
1759 case ,${enable_languages}, in
1760 *,lto,*) ;;
1761 *) enable_languages="${enable_languages},lto" ;;
1762 esac
1763 if test "${build_lto_plugin}" = "yes" ; then
1764 configdirs="$configdirs lto-plugin"
1765 extra_host_libiberty_configure_flags=--enable-shared
1766 fi
1767 fi
1768 AC_SUBST(extra_host_libiberty_configure_flags)
1769
1770 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1771 potential_languages=,c,
1772
1773 enabled_target_libs=
1774 disabled_target_libs=
1775
1776 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1777 case ${lang_frag} in
1778 ..) ;;
1779 # The odd quoting in the next line works around
1780 # an apparent bug in bash 1.12 on linux.
1781 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1782 *)
1783 # From the config-lang.in, get $language, $target_libs,
1784 # $lang_dirs, $boot_language, and $build_by_default
1785 language=
1786 target_libs=
1787 lang_dirs=
1788 subdir_requires=
1789 boot_language=no
1790 build_by_default=yes
1791 . ${lang_frag}
1792 if test x${language} = x; then
1793 echo "${lang_frag} doesn't set \$language." 1>&2
1794 exit 1
1795 fi
1796
1797 if test "$language" = "c++"; then
1798 if test "$ENABLE_BUILD_WITH_CXX" = "yes" \
1799 || test "$ENABLE_BUILD_POSTSTAGE1_WITH_CXX" = "yes"; then
1800 boot_language=yes
1801 fi
1802 fi
1803
1804 case ,${enable_languages}, in
1805 *,${language},*)
1806 # Language was explicitly selected; include it.
1807 add_this_lang=yes
1808 ;;
1809 *,all,*)
1810 # 'all' was selected, select it if it is a default language
1811 add_this_lang=${build_by_default}
1812 ;;
1813 *)
1814 add_this_lang=no
1815 ;;
1816 esac
1817
1818 # Disable languages that need other directories if these aren't available.
1819 for i in $subdir_requires; do
1820 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1821 case ,${enable_languages}, in
1822 *,${language},*)
1823 # Specifically requested language; tell them.
1824 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1825 ;;
1826 *)
1827 # Silently disable.
1828 add_this_lang=unsupported
1829 ;;
1830 esac
1831 done
1832
1833 # Disable Ada if no preexisting GNAT is available.
1834 case ,${enable_languages},:${language}:${have_gnat} in
1835 *,${language},*:ada:no)
1836 # Specifically requested language; tell them.
1837 AC_MSG_ERROR([GNAT is required to build $language])
1838 ;;
1839 *:ada:no)
1840 # Silently disable.
1841 add_this_lang=unsupported
1842 ;;
1843 esac
1844
1845 # Disable a language that is unsupported by the target.
1846 case " $unsupported_languages " in
1847 *" $language "*)
1848 add_this_lang=unsupported
1849 ;;
1850 esac
1851
1852 case $add_this_lang in
1853 unsupported)
1854 # Remove language-dependent dirs.
1855 disabled_target_libs="$disabled_target_libs $target_libs"
1856 noconfigdirs="$noconfigdirs $lang_dirs"
1857 ;;
1858 no)
1859 # Remove language-dependent dirs; still show language as supported.
1860 disabled_target_libs="$disabled_target_libs $target_libs"
1861 noconfigdirs="$noconfigdirs $lang_dirs"
1862 potential_languages="${potential_languages}${language},"
1863 ;;
1864 yes)
1865 new_enable_languages="${new_enable_languages}${language},"
1866 potential_languages="${potential_languages}${language},"
1867 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1868 enabled_target_libs="$enabled_target_libs $target_libs"
1869 case "${boot_language}:,$enable_stage1_languages," in
1870 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
1871 # Add to (comma-separated) list of stage 1 languages.
1872 case ",$stage1_languages," in
1873 *,$language,* | ,yes, | ,all,) ;;
1874 *) stage1_languages="${stage1_languages}${language}," ;;
1875 esac
1876 # We need to bootstrap any supporting libraries.
1877 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
1878 ;;
1879 esac
1880 ;;
1881 esac
1882 ;;
1883 esac
1884 done
1885
1886 # Add target libraries which are only needed for disabled languages
1887 # to noconfigdirs.
1888 if test -n "$disabled_target_libs"; then
1889 for dir in $disabled_target_libs; do
1890 case " $enabled_target_libs " in
1891 *" ${dir} "*) ;;
1892 *) noconfigdirs="$noconfigdirs $dir" ;;
1893 esac
1894 done
1895 fi
1896
1897 AC_ARG_ENABLE(stage1-languages,
1898 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
1899 [choose additional languages to build during
1900 stage1. Mostly useful for compiler development])],
1901 [case ,${enable_stage1_languages}, in
1902 ,no,|,,)
1903 # Set it to something that will have no effect in the loop below
1904 enable_stage1_languages=c ;;
1905 ,yes,)
1906 enable_stage1_languages=`echo $new_enable_languages | \
1907 sed -e "s/^,//" -e "s/,$//" ` ;;
1908 *,all,*)
1909 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
1910 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
1911 esac
1912
1913 # Add "good" languages from enable_stage1_languages to stage1_languages,
1914 # while "bad" languages go in missing_languages. Leave no duplicates.
1915 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
1916 case $potential_languages in
1917 *,$i,*)
1918 case $stage1_languages in
1919 *,$i,*) ;;
1920 *) stage1_languages="$stage1_languages$i," ;;
1921 esac ;;
1922 *)
1923 case $missing_languages in
1924 *,$i,*) ;;
1925 *) missing_languages="$missing_languages$i," ;;
1926 esac ;;
1927 esac
1928 done])
1929
1930 # Remove leading/trailing commas that were added for simplicity
1931 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
1932 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1933 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
1934 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
1935
1936 if test "x$missing_languages" != x; then
1937 AC_MSG_ERROR([
1938 The following requested languages could not be built: ${missing_languages}
1939 Supported languages are: ${potential_languages}])
1940 fi
1941 if test "x$new_enable_languages" != "x$enable_languages"; then
1942 echo The following languages will be built: ${new_enable_languages}
1943 enable_languages="$new_enable_languages"
1944 fi
1945
1946 AC_SUBST(stage1_languages)
1947 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
1948 fi
1949
1950 # Handle --disable-<component> generically.
1951 for dir in $configdirs $build_configdirs $target_configdirs ; do
1952 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1953 varname=`echo $dirname | sed -e s/+/_/g`
1954 if eval test x\${enable_${varname}} "=" xno ; then
1955 noconfigdirs="$noconfigdirs $dir"
1956 fi
1957 done
1958
1959 # Check for Boehm's garbage collector
1960 AC_ARG_ENABLE(objc-gc,
1961 [AS_HELP_STRING([--enable-objc-gc],
1962 [enable use of Boehm's garbage collector with the
1963 GNU Objective-C runtime])],
1964 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
1965 *,objc,*:*:yes:*target-boehm-gc*)
1966 AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
1967 ;;
1968 esac])
1969
1970 # Make sure we only build Boehm's garbage collector if required.
1971 case ,${enable_languages},:${enable_objc_gc} in
1972 *,objc,*:yes)
1973 # Keep target-boehm-gc if requested for Objective-C.
1974 ;;
1975 *)
1976 # Otherwise remove target-boehm-gc depending on target-libjava.
1977 if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
1978 noconfigdirs="$noconfigdirs target-boehm-gc"
1979 fi
1980 ;;
1981 esac
1982
1983 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1984 # $build_configdirs and $target_configdirs.
1985 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1986
1987 notsupp=""
1988 for dir in . $skipdirs $noconfigdirs ; do
1989 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1990 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1991 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1992 if test -r $srcdir/$dirname/configure ; then
1993 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1994 true
1995 else
1996 notsupp="$notsupp $dir"
1997 fi
1998 fi
1999 fi
2000 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2001 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2002 if test -r $srcdir/$dirname/configure ; then
2003 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2004 true
2005 else
2006 notsupp="$notsupp $dir"
2007 fi
2008 fi
2009 fi
2010 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2011 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2012 if test -r $srcdir/$dirname/configure ; then
2013 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2014 true
2015 else
2016 notsupp="$notsupp $dir"
2017 fi
2018 fi
2019 fi
2020 done
2021
2022 # Quietly strip out all directories which aren't configurable in this tree.
2023 # This relies on all configurable subdirectories being autoconfiscated, which
2024 # is now the case.
2025 build_configdirs_all="$build_configdirs"
2026 build_configdirs=
2027 for i in ${build_configdirs_all} ; do
2028 j=`echo $i | sed -e s/build-//g`
2029 if test -f ${srcdir}/$j/configure ; then
2030 build_configdirs="${build_configdirs} $i"
2031 fi
2032 done
2033
2034 configdirs_all="$configdirs"
2035 configdirs=
2036 for i in ${configdirs_all} ; do
2037 if test -f ${srcdir}/$i/configure ; then
2038 configdirs="${configdirs} $i"
2039 fi
2040 done
2041
2042 target_configdirs_all="$target_configdirs"
2043 target_configdirs=
2044 for i in ${target_configdirs_all} ; do
2045 j=`echo $i | sed -e s/target-//g`
2046 if test -f ${srcdir}/$j/configure ; then
2047 target_configdirs="${target_configdirs} $i"
2048 fi
2049 done
2050
2051 # Produce a warning message for the subdirs we can't configure.
2052 # This isn't especially interesting in the Cygnus tree, but in the individual
2053 # FSF releases, it's important to let people know when their machine isn't
2054 # supported by the one or two programs in a package.
2055
2056 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2057 # If $appdirs is non-empty, at least one of those directories must still
2058 # be configured, or we error out. (E.g., if the gas release supports a
2059 # specified target in some subdirs but not the gas subdir, we shouldn't
2060 # pretend that all is well.)
2061 if test -n "$appdirs" ; then
2062 for dir in $appdirs ; do
2063 if test -r $dir/Makefile.in ; then
2064 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2065 appdirs=""
2066 break
2067 fi
2068 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2069 appdirs=""
2070 break
2071 fi
2072 fi
2073 done
2074 if test -n "$appdirs" ; then
2075 echo "*** This configuration is not supported by this package." 1>&2
2076 exit 1
2077 fi
2078 fi
2079 # Okay, some application will build, or we don't care to check. Still
2080 # notify of subdirs not getting built.
2081 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2082 echo " ${notsupp}" 1>&2
2083 echo " (Any other directories should still work fine.)" 1>&2
2084 fi
2085
2086 case "$host" in
2087 *msdosdjgpp*)
2088 enable_gdbtk=no ;;
2089 esac
2090
2091 # To find our prefix, in gcc_cv_tool_prefix.
2092 ACX_TOOL_DIRS
2093
2094 copy_dirs=
2095
2096 AC_ARG_WITH([build-sysroot],
2097 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2098 [use sysroot as the system root during the build])],
2099 [if test x"$withval" != x ; then
2100 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2101 fi],
2102 [SYSROOT_CFLAGS_FOR_TARGET=])
2103 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2104
2105 AC_ARG_WITH([debug-prefix-map],
2106 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2107 [map A to B, C to D ... in debug information])],
2108 [if test x"$withval" != x; then
2109 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2110 for debug_map in $withval; do
2111 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2112 done
2113 fi],
2114 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2115 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2116
2117 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2118 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2119 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2120 # We want to ensure that TARGET libraries (which we know are built with
2121 # gcc) are built with "-O2 -g", so include those options when setting
2122 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2123 if test "x$CFLAGS_FOR_TARGET" = x; then
2124 CFLAGS_FOR_TARGET=$CFLAGS
2125 case " $CFLAGS " in
2126 *" -O2 "*) ;;
2127 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS" ;;
2128 esac
2129 case " $CFLAGS " in
2130 *" -g "* | *" -g3 "*) ;;
2131 *) CFLAGS_FOR_TARGET="-g $CFLAGS" ;;
2132 esac
2133 fi
2134 AC_SUBST(CFLAGS_FOR_TARGET)
2135
2136 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2137 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2138 case " $CXXFLAGS " in
2139 *" -O2 "*) ;;
2140 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS" ;;
2141 esac
2142 case " $CXXFLAGS " in
2143 *" -g "* | *" -g3 "*) ;;
2144 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS" ;;
2145 esac
2146 fi
2147 AC_SUBST(CXXFLAGS_FOR_TARGET)
2148
2149 AC_SUBST(LDFLAGS_FOR_TARGET)
2150
2151 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2152 # the named directory are copied to $(tooldir)/sys-include.
2153 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2154 if test x${is_cross_compiler} = xno ; then
2155 echo 1>&2 '***' --with-headers is only supported when cross compiling
2156 exit 1
2157 fi
2158 if test x"${with_headers}" != xyes ; then
2159 x=${gcc_cv_tool_prefix}
2160 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2161 fi
2162 fi
2163
2164 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2165 # the name directories are copied to $(tooldir)/lib. Multiple directories
2166 # are permitted.
2167 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2168 if test x${is_cross_compiler} = xno ; then
2169 echo 1>&2 '***' --with-libs is only supported when cross compiling
2170 exit 1
2171 fi
2172 if test x"${with_libs}" != xyes ; then
2173 # Copy the libraries in reverse order, so that files in the first named
2174 # library override files in subsequent libraries.
2175 x=${gcc_cv_tool_prefix}
2176 for l in ${with_libs}; do
2177 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2178 done
2179 fi
2180 fi
2181
2182 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2183 #
2184 # This is done by determining whether or not the appropriate directory
2185 # is available, and by checking whether or not specific configurations
2186 # have requested that this magic not happen.
2187 #
2188 # The command line options always override the explicit settings in
2189 # configure.in, and the settings in configure.in override this magic.
2190 #
2191 # If the default for a toolchain is to use GNU as and ld, and you don't
2192 # want to do that, then you should use the --without-gnu-as and
2193 # --without-gnu-ld options for the configure script. Similarly, if
2194 # the default is to use the included zlib and you don't want to do that,
2195 # you should use the --with-system-zlib option for the configure script.
2196
2197 if test x${use_gnu_as} = x &&
2198 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2199 with_gnu_as=yes
2200 extra_host_args="$extra_host_args --with-gnu-as"
2201 fi
2202
2203 if test x${use_gnu_ld} = x &&
2204 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2205 with_gnu_ld=yes
2206 extra_host_args="$extra_host_args --with-gnu-ld"
2207 fi
2208
2209 if test x${use_included_zlib} = x &&
2210 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2211 :
2212 else
2213 with_system_zlib=yes
2214 extra_host_args="$extra_host_args --with-system-zlib"
2215 fi
2216
2217 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2218 # can detect this case.
2219
2220 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2221 with_newlib=yes
2222 extra_host_args="$extra_host_args --with-newlib"
2223 fi
2224
2225 # Handle ${copy_dirs}
2226 set fnord ${copy_dirs}
2227 shift
2228 while test $# != 0 ; do
2229 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2230 :
2231 else
2232 echo Copying $1 to $2
2233
2234 # Use the install script to create the directory and all required
2235 # parent directories.
2236 if test -d $2 ; then
2237 :
2238 else
2239 echo >config.temp
2240 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2241 fi
2242
2243 # Copy the directory, assuming we have tar.
2244 # FIXME: Should we use B in the second tar? Not all systems support it.
2245 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2246
2247 # It is the responsibility of the user to correctly adjust all
2248 # symlinks. If somebody can figure out how to handle them correctly
2249 # here, feel free to add the code.
2250
2251 echo $1 > $2/COPIED
2252 fi
2253 shift; shift
2254 done
2255
2256 # Determine a target-dependent exec_prefix that the installed
2257 # gcc will search in. Keep this list sorted by triplet, with
2258 # the *-*-osname triplets last.
2259 md_exec_prefix=
2260 case "${target}" in
2261 i[[34567]]86-pc-msdosdjgpp*)
2262 md_exec_prefix=/dev/env/DJDIR/bin
2263 ;;
2264 *-*-hpux* | \
2265 *-*-nto-qnx* | \
2266 *-*-solaris2*)
2267 md_exec_prefix=/usr/ccs/bin
2268 ;;
2269 esac
2270
2271 extra_arflags_for_target=
2272 extra_nmflags_for_target=
2273 extra_ranlibflags_for_target=
2274 target_makefile_frag=/dev/null
2275 case "${target}" in
2276 spu-*-*)
2277 target_makefile_frag="config/mt-spu"
2278 ;;
2279 mips*-sde-elf*)
2280 target_makefile_frag="config/mt-sde"
2281 ;;
2282 mipsisa*-*-elfoabi*)
2283 target_makefile_frag="config/mt-mips-elfoabi"
2284 ;;
2285 mips*-*-*linux* | mips*-*-gnu*)
2286 target_makefile_frag="config/mt-mips-gnu"
2287 ;;
2288 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2289 target_makefile_frag="config/mt-gnu"
2290 ;;
2291 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2292 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2293 # commands to handle both 32-bit and 64-bit objects. These flags are
2294 # harmless if we're using GNU nm or ar.
2295 extra_arflags_for_target=" -X32_64"
2296 extra_nmflags_for_target=" -B -X32_64"
2297 ;;
2298 *-*-darwin[[3-9]]*)
2299 # ranlib before Darwin10 requires the -c flag to look at common symbols.
2300 extra_ranlibflags_for_target=" -c"
2301 ;;
2302 esac
2303
2304 alphaieee_frag=/dev/null
2305 case $target in
2306 alpha*-*-*)
2307 # This just makes sure to use the -mieee option to build target libs.
2308 # This should probably be set individually by each library.
2309 alphaieee_frag="config/mt-alphaieee"
2310 ;;
2311 esac
2312
2313 # If --enable-target-optspace always use -Os instead of -O2 to build
2314 # the target libraries, similarly if it is not specified, use -Os
2315 # on selected platforms.
2316 ospace_frag=/dev/null
2317 case "${enable_target_optspace}:${target}" in
2318 yes:*)
2319 ospace_frag="config/mt-ospace"
2320 ;;
2321 :d30v-*)
2322 ospace_frag="config/mt-d30v"
2323 ;;
2324 :m32r-* | :d10v-* | :fr30-*)
2325 ospace_frag="config/mt-ospace"
2326 ;;
2327 no:* | :*)
2328 ;;
2329 *)
2330 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2331 ;;
2332 esac
2333
2334 # Default to using --with-stabs for certain targets.
2335 if test x${with_stabs} = x ; then
2336 case "${target}" in
2337 mips*-*-irix[[56]]*)
2338 ;;
2339 mips*-*-* | alpha*-*-osf*)
2340 with_stabs=yes;
2341 extra_host_args="${extra_host_args} --with-stabs"
2342 ;;
2343 esac
2344 fi
2345
2346 # Some systems (e.g., one of the i386-aix systems the gas testers are
2347 # using) don't handle "\$" correctly, so don't use it here.
2348 tooldir='${exec_prefix}'/${target_noncanonical}
2349 build_tooldir=${tooldir}
2350
2351 # Create a .gdbinit file which runs the one in srcdir
2352 # and tells GDB to look there for source files.
2353
2354 if test -r ${srcdir}/.gdbinit ; then
2355 case ${srcdir} in
2356 .) ;;
2357 *) cat > ./.gdbinit <<EOF
2358 # ${NO_EDIT}
2359 dir ${srcdir}
2360 dir .
2361 source ${srcdir}/.gdbinit
2362 EOF
2363 ;;
2364 esac
2365 fi
2366
2367 # Make sure that the compiler is able to generate an executable. If it
2368 # can't, we are probably in trouble. We don't care whether we can run the
2369 # executable--we might be using a cross compiler--we only care whether it
2370 # can be created. At this point the main configure script has set CC.
2371 we_are_ok=no
2372 echo "int main () { return 0; }" > conftest.c
2373 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2374 if test $? = 0 ; then
2375 if test -s conftest || test -s conftest.exe ; then
2376 we_are_ok=yes
2377 fi
2378 fi
2379 case $we_are_ok in
2380 no)
2381 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2382 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2383 rm -f conftest*
2384 exit 1
2385 ;;
2386 esac
2387 rm -f conftest*
2388
2389 # Decide which environment variable is used to find dynamic libraries.
2390 case "${host}" in
2391 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2392 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2393 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2394 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2395 esac
2396
2397 # On systems where the dynamic library environment variable is PATH,
2398 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2399 # built executables to PATH.
2400 if test "$RPATH_ENVVAR" = PATH; then
2401 GCC_SHLIB_SUBDIR=/shlib
2402 else
2403 GCC_SHLIB_SUBDIR=
2404 fi
2405
2406 # Record target_configdirs and the configure arguments for target and
2407 # build configuration in Makefile.
2408 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2409 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2410
2411 # If we are building libgomp, bootstrap it.
2412 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2413 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2414 fi
2415
2416 # Determine whether gdb needs tk/tcl or not.
2417 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2418 # and in that case we want gdb to be built without tk. Ugh!
2419 # In fact I believe gdb is the *only* package directly dependent on tk,
2420 # so we should be able to put the 'maybe's in unconditionally and
2421 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2422 # 100% sure that that's safe though.
2423
2424 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2425 case "$enable_gdbtk" in
2426 no)
2427 GDB_TK="" ;;
2428 yes)
2429 GDB_TK="${gdb_tk}" ;;
2430 *)
2431 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2432 # distro. Eventually someone will fix this and move Insight, nee
2433 # gdbtk to a separate directory.
2434 if test -d ${srcdir}/gdb/gdbtk ; then
2435 GDB_TK="${gdb_tk}"
2436 else
2437 GDB_TK=""
2438 fi
2439 ;;
2440 esac
2441 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2442 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2443
2444 # Strip out unwanted targets.
2445
2446 # While at that, we remove Makefiles if we were started for recursive
2447 # configuration, so that the top-level Makefile reconfigures them,
2448 # like we used to do when configure itself was recursive.
2449
2450 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2451 # but now we're fixing up the Makefile ourselves with the additional
2452 # commands passed to AC_CONFIG_FILES. Use separate variables
2453 # extrasub-{build,host,target} not because there is any reason to split
2454 # the substitutions up that way, but only to remain below the limit of
2455 # 99 commands in a script, for HP-UX sed.
2456 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2457
2458 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2459 yes:yes:*\ gold\ *:*,c++,*) ;;
2460 yes:yes:*\ gold\ *:*)
2461 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2462 ;;
2463 esac
2464
2465 # Adjust the toplevel makefile according to whether bootstrap was selected.
2466 case $enable_bootstrap in
2467 yes)
2468 bootstrap_suffix=bootstrap
2469 BUILD_CONFIG=bootstrap-debug
2470 ;;
2471 no)
2472 bootstrap_suffix=no-bootstrap
2473 BUILD_CONFIG=
2474 ;;
2475 esac
2476
2477 AC_MSG_CHECKING(for default BUILD_CONFIG)
2478
2479 AC_ARG_WITH([build-config],
2480 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2481 [use config/NAME.mk build configuration])],
2482 [case $with_build_config in
2483 yes) with_build_config= ;;
2484 no) with_build_config= BUILD_CONFIG= ;;
2485 esac])
2486
2487 if test "x${with_build_config}" != x; then
2488 BUILD_CONFIG=$with_build_config
2489 else
2490 case $BUILD_CONFIG in
2491 bootstrap-debug)
2492 if echo "int f (void) { return 0; }" > conftest.c &&
2493 ${CC} -c conftest.c &&
2494 mv conftest.o conftest.o.g0 &&
2495 ${CC} -c -g conftest.c &&
2496 mv conftest.o conftest.o.g &&
2497 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2498 :
2499 else
2500 BUILD_CONFIG=
2501 fi
2502 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2503 ;;
2504 esac
2505 fi
2506 AC_MSG_RESULT($BUILD_CONFIG)
2507 AC_SUBST(BUILD_CONFIG)
2508
2509 extrasub_build=
2510 for module in ${build_configdirs} ; do
2511 if test -z "${no_recursion}" \
2512 && test -f ${build_subdir}/${module}/Makefile; then
2513 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2514 rm -f ${build_subdir}/${module}/Makefile
2515 fi
2516 extrasub_build="$extrasub_build
2517 /^@if build-$module\$/d
2518 /^@endif build-$module\$/d
2519 /^@if build-$module-$bootstrap_suffix\$/d
2520 /^@endif build-$module-$bootstrap_suffix\$/d"
2521 done
2522 extrasub_host=
2523 for module in ${configdirs} ; do
2524 if test -z "${no_recursion}"; then
2525 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2526 if test -f ${file}; then
2527 echo 1>&2 "*** removing ${file} to force reconfigure"
2528 rm -f ${file}
2529 fi
2530 done
2531 fi
2532 extrasub_host="$extrasub_host
2533 /^@if $module\$/d
2534 /^@endif $module\$/d
2535 /^@if $module-$bootstrap_suffix\$/d
2536 /^@endif $module-$bootstrap_suffix\$/d"
2537 done
2538 extrasub_target=
2539 for module in ${target_configdirs} ; do
2540 if test -z "${no_recursion}" \
2541 && test -f ${target_subdir}/${module}/Makefile; then
2542 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2543 rm -f ${target_subdir}/${module}/Makefile
2544 fi
2545
2546 # We only bootstrap target libraries listed in bootstrap_target_libs.
2547 case $bootstrap_target_libs in
2548 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2549 *) target_bootstrap_suffix=no-bootstrap ;;
2550 esac
2551
2552 extrasub_target="$extrasub_target
2553 /^@if target-$module\$/d
2554 /^@endif target-$module\$/d
2555 /^@if target-$module-$target_bootstrap_suffix\$/d
2556 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2557 done
2558
2559 # Do the final fixup along with target modules.
2560 extrasub_target="$extrasub_target
2561 /^@if /,/^@endif /d"
2562
2563 # Create the serialization dependencies. This uses a temporary file.
2564
2565 AC_ARG_ENABLE([serial-configure],
2566 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2567 [force sequential configuration of
2568 sub-packages for the host, target or build
2569 machine, or all sub-packages])])
2570
2571 case ${enable_serial_configure} in
2572 yes)
2573 enable_serial_build_configure=yes
2574 enable_serial_host_configure=yes
2575 enable_serial_target_configure=yes
2576 ;;
2577 esac
2578
2579 # These force 'configure's to be done one at a time, to avoid problems
2580 # with contention over a shared config.cache.
2581 rm -f serdep.tmp
2582 echo '# serdep.tmp' > serdep.tmp
2583 olditem=
2584 test "x${enable_serial_build_configure}" = xyes &&
2585 for item in ${build_configdirs} ; do
2586 case ${olditem} in
2587 "") ;;
2588 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2589 esac
2590 olditem=${item}
2591 done
2592 olditem=
2593 test "x${enable_serial_host_configure}" = xyes &&
2594 for item in ${configdirs} ; do
2595 case ${olditem} in
2596 "") ;;
2597 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2598 esac
2599 olditem=${item}
2600 done
2601 olditem=
2602 test "x${enable_serial_target_configure}" = xyes &&
2603 for item in ${target_configdirs} ; do
2604 case ${olditem} in
2605 "") ;;
2606 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2607 esac
2608 olditem=${item}
2609 done
2610 serialization_dependencies=serdep.tmp
2611 AC_SUBST_FILE(serialization_dependencies)
2612
2613 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2614 # target, nonopt, and variable assignments. These are the ones we
2615 # might not want to pass down to subconfigures. The exception being
2616 # --cache-file=/dev/null, which is used to turn off the use of cache
2617 # files altogether, and which should be passed on to subconfigures.
2618 # Also strip program-prefix, program-suffix, and program-transform-name,
2619 # so that we can pass down a consistent program-transform-name.
2620 baseargs=
2621 tbaseargs=
2622 keep_next=no
2623 skip_next=no
2624 eval "set -- $ac_configure_args"
2625 for ac_arg
2626 do
2627 if test X"$skip_next" = X"yes"; then
2628 skip_next=no
2629 continue
2630 fi
2631 if test X"$keep_next" = X"yes"; then
2632 case $ac_arg in
2633 *\'*)
2634 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2635 esac
2636 baseargs="$baseargs '$ac_arg'"
2637 tbaseargs="$tbaseargs '$ac_arg'"
2638 keep_next=no
2639 continue
2640 fi
2641
2642 # Handle separated arguments. Based on the logic generated by
2643 # autoconf 2.59.
2644 case $ac_arg in
2645 *=* | --config-cache | -C | -disable-* | --disable-* \
2646 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2647 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2648 | -with-* | --with-* | -without-* | --without-* | --x)
2649 separate_arg=no
2650 ;;
2651 -*)
2652 separate_arg=yes
2653 ;;
2654 *)
2655 separate_arg=no
2656 ;;
2657 esac
2658
2659 skip_targ=no
2660 case $ac_arg in
2661 changequote(,)
2662 --with-* | --without-*)
2663 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2664
2665 case $libopt in
2666 *[-_]include)
2667 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2668 ;;
2669 *[-_]lib)
2670 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2671 ;;
2672 *)
2673 lib=$libopt
2674 ;;
2675 esac
2676 changequote([,])
2677
2678 case $lib in
2679 mpc | mpfr | gmp | ppl | cloog)
2680 # If we're processing --with-$lib, --with-$lib-include or
2681 # --with-$lib-lib, for one of the libs above, and target is
2682 # different from host, don't pass the current argument to any
2683 # target library's configure.
2684 if test x$is_cross_compiler = xyes; then
2685 skip_targ=yes
2686 fi
2687 ;;
2688 esac
2689 ;;
2690 esac
2691
2692 case "$ac_arg" in
2693 --cache-file=/dev/null | \
2694 -cache-file=/dev/null )
2695 # Handled here to avoid the test to skip args below.
2696 baseargs="$baseargs '$ac_arg'"
2697 tbaseargs="$tbaseargs '$ac_arg'"
2698 # Assert: $separate_arg should always be no.
2699 keep_next=$separate_arg
2700 ;;
2701 --no*)
2702 continue
2703 ;;
2704 --c* | \
2705 --sr* | \
2706 --ho* | \
2707 --bu* | \
2708 --t* | \
2709 --program-* | \
2710 -cache_file* | \
2711 -srcdir* | \
2712 -host* | \
2713 -build* | \
2714 -target* | \
2715 -program-prefix* | \
2716 -program-suffix* | \
2717 -program-transform-name* )
2718 skip_next=$separate_arg
2719 continue
2720 ;;
2721 -*)
2722 # An option. Add it.
2723 case $ac_arg in
2724 *\'*)
2725 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2726 esac
2727 baseargs="$baseargs '$ac_arg'"
2728 if test X"$skip_targ" = Xno; then
2729 tbaseargs="$tbaseargs '$ac_arg'"
2730 fi
2731 keep_next=$separate_arg
2732 ;;
2733 *)
2734 # Either a variable assignment, or a nonopt (triplet). Don't
2735 # pass it down; let the Makefile handle this.
2736 continue
2737 ;;
2738 esac
2739 done
2740 # Remove the initial space we just introduced and, as these will be
2741 # expanded by make, quote '$'.
2742 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2743
2744 # Add in --program-transform-name, after --program-prefix and
2745 # --program-suffix have been applied to it. Autoconf has already
2746 # doubled dollar signs and backslashes in program_transform_name; we want
2747 # the backslashes un-doubled, and then the entire thing wrapped in single
2748 # quotes, because this will be expanded first by make and then by the shell.
2749 # Also, because we want to override the logic in subdir configure scripts to
2750 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2751 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2752 ${program_transform_name}
2753 EOF_SED
2754 gcc_transform_name=`cat conftestsed.out`
2755 rm -f conftestsed.out
2756 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2757 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
2758 if test "$silent" = yes; then
2759 baseargs="$baseargs --silent"
2760 tbaseargs="$tbaseargs --silent"
2761 fi
2762 baseargs="$baseargs --disable-option-checking"
2763 tbaseargs="$tbaseargs --disable-option-checking"
2764
2765 # Record and document user additions to sub configure arguments.
2766 AC_ARG_VAR([build_configargs],
2767 [additional configure arguments for build directories])
2768 AC_ARG_VAR([host_configargs],
2769 [additional configure arguments for host directories])
2770 AC_ARG_VAR([target_configargs],
2771 [additional configure arguments for target directories])
2772
2773 # For the build-side libraries, we just need to pretend we're native,
2774 # and not use the same cache file. Multilibs are neither needed nor
2775 # desired.
2776 build_configargs="$build_configargs --cache-file=../config.cache ${baseargs}"
2777
2778 # For host modules, accept cache file option, or specification as blank.
2779 case "${cache_file}" in
2780 "") # empty
2781 cache_file_option="" ;;
2782 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2783 cache_file_option="--cache-file=${cache_file}" ;;
2784 *) # relative path
2785 cache_file_option="--cache-file=../${cache_file}" ;;
2786 esac
2787
2788 # Host dirs don't like to share a cache file either, horribly enough.
2789 # This seems to be due to autoconf 2.5x stupidity.
2790 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
2791
2792 target_configargs="$target_configargs ${tbaseargs}"
2793
2794 # Passing a --with-cross-host argument lets the target libraries know
2795 # whether they are being built with a cross-compiler or being built
2796 # native. However, it would be better to use other mechanisms to make the
2797 # sorts of decisions they want to make on this basis. Please consider
2798 # this option to be deprecated. FIXME.
2799 if test x${is_cross_compiler} = xyes ; then
2800 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
2801 fi
2802
2803 # Default to --enable-multilib.
2804 if test x${enable_multilib} = x ; then
2805 target_configargs="--enable-multilib ${target_configargs}"
2806 fi
2807
2808 # Pass --with-newlib if appropriate. Note that target_configdirs has
2809 # changed from the earlier setting of with_newlib.
2810 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2811 target_configargs="--with-newlib ${target_configargs}"
2812 fi
2813
2814 # Different target subdirs use different values of certain variables
2815 # (notably CXX). Worse, multilibs use *lots* of different values.
2816 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2817 # it doesn't automatically accept command-line overrides of them.
2818 # This means it's not safe for target subdirs to share a cache file,
2819 # which is disgusting, but there you have it. Hopefully this can be
2820 # fixed in future. It's still worthwhile to use a cache file for each
2821 # directory. I think.
2822
2823 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2824 # We need to pass --target, as newer autoconf's requires consistency
2825 # for target_alias and gcc doesn't manage it consistently.
2826 target_configargs="--cache-file=./config.cache ${target_configargs}"
2827
2828 FLAGS_FOR_TARGET=
2829 case " $target_configdirs " in
2830 *" newlib "*)
2831 case " $target_configargs " in
2832 *" --with-newlib "*)
2833 case "$target" in
2834 *-cygwin*)
2835 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 $$s/winsup/w32api/include'
2836 ;;
2837 esac
2838
2839 # If we're not building GCC, don't discard standard headers.
2840 if test -d ${srcdir}/gcc; then
2841 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2842
2843 if test "${build}" != "${host}"; then
2844 # On Canadian crosses, CC_FOR_TARGET will have already been set
2845 # by `configure', so we won't have an opportunity to add -Bgcc/
2846 # to it. This is right: we don't want to search that directory
2847 # for binaries, but we want the header files in there, so add
2848 # them explicitly.
2849 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
2850
2851 # Someone might think of using the pre-installed headers on
2852 # Canadian crosses, in case the installed compiler is not fully
2853 # compatible with the compiler being built. In this case, it
2854 # would be better to flag an error than risking having
2855 # incompatible object files being constructed. We can't
2856 # guarantee that an error will be flagged, but let's hope the
2857 # compiler will do it, when presented with incompatible header
2858 # files.
2859 fi
2860 fi
2861
2862 case "${target}-${is_cross_compiler}" in
2863 i[[3456789]]86-*-linux*-no)
2864 # Here host == target, so we don't need to build gcc,
2865 # so we don't want to discard standard headers.
2866 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2867 ;;
2868 *)
2869 # If we're building newlib, use its generic headers last, but search
2870 # for any libc-related directories first (so make it the last -B
2871 # switch).
2872 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2873
2874 # If we're building libgloss, find the startup file, simulator library
2875 # and linker script.
2876 case " $target_configdirs " in
2877 *" libgloss "*)
2878 # Look for startup file, simulator library and maybe linker script.
2879 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
2880 # Look for libnosys.a in case the target needs it.
2881 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2882 # Most targets have the linker script in the source directory.
2883 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
2884 ;;
2885 esac
2886 ;;
2887 esac
2888 ;;
2889 esac
2890 ;;
2891 esac
2892
2893 case "$target" in
2894 x86_64-*mingw* | *-w64-mingw*)
2895 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
2896 # however, use a symlink named 'mingw' in ${prefix} .
2897 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
2898 ;;
2899 *-mingw*)
2900 # MinGW can't be handled as Cygwin above since it does not use newlib.
2901 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
2902 ;;
2903 esac
2904
2905 # Allow the user to override the flags for
2906 # our build compiler if desired.
2907 if test x"${build}" = x"${host}" ; then
2908 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2909 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
2910 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
2911 fi
2912
2913 # On Canadian crosses, we'll be searching the right directories for
2914 # the previously-installed cross compiler, so don't bother to add
2915 # flags for directories within the install tree of the compiler
2916 # being built; programs in there won't even run.
2917 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2918 # Search for pre-installed headers if nothing else fits.
2919 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2920 fi
2921
2922 if test "x${use_gnu_ld}" = x &&
2923 echo " ${configdirs} " | grep " ld " > /dev/null ; then
2924 # Arrange for us to find uninstalled linker scripts.
2925 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2926 fi
2927
2928 # Search for other target-specific linker scripts and such.
2929 case "${target}" in
2930 mep*)
2931 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
2932 ;;
2933 esac
2934
2935 # Makefile fragments.
2936 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2937 do
2938 eval fragval=\$$frag
2939 if test $fragval != /dev/null; then
2940 eval $frag=${srcdir}/$fragval
2941 fi
2942 done
2943 AC_SUBST_FILE(host_makefile_frag)
2944 AC_SUBST_FILE(target_makefile_frag)
2945 AC_SUBST_FILE(alphaieee_frag)
2946 AC_SUBST_FILE(ospace_frag)
2947
2948 # Miscellanea: directories, flags, etc.
2949 AC_SUBST(RPATH_ENVVAR)
2950 AC_SUBST(GCC_SHLIB_SUBDIR)
2951 AC_SUBST(tooldir)
2952 AC_SUBST(build_tooldir)
2953 AC_SUBST(CONFIGURE_GDB_TK)
2954 AC_SUBST(GDB_TK)
2955 AC_SUBST(INSTALL_GDB_TK)
2956
2957 # Build module lists & subconfigure args.
2958 AC_SUBST(build_configargs)
2959 AC_SUBST(build_configdirs)
2960
2961 # Host module lists & subconfigure args.
2962 AC_SUBST(host_configargs)
2963 AC_SUBST(configdirs)
2964 AC_SUBST(target_configdirs)
2965
2966 # Target module lists & subconfigure args.
2967 AC_SUBST(target_configargs)
2968
2969
2970 # Build tools.
2971 AC_SUBST(AR_FOR_BUILD)
2972 AC_SUBST(AS_FOR_BUILD)
2973 AC_SUBST(CC_FOR_BUILD)
2974 AC_SUBST(CFLAGS_FOR_BUILD)
2975 AC_SUBST(CXXFLAGS_FOR_BUILD)
2976 AC_SUBST(CXX_FOR_BUILD)
2977 AC_SUBST(DLLTOOL_FOR_BUILD)
2978 AC_SUBST(GCJ_FOR_BUILD)
2979 AC_SUBST(GFORTRAN_FOR_BUILD)
2980 AC_SUBST(GOC_FOR_BUILD)
2981 AC_SUBST(LDFLAGS_FOR_BUILD)
2982 AC_SUBST(LD_FOR_BUILD)
2983 AC_SUBST(NM_FOR_BUILD)
2984 AC_SUBST(RANLIB_FOR_BUILD)
2985 AC_SUBST(WINDMC_FOR_BUILD)
2986 AC_SUBST(WINDRES_FOR_BUILD)
2987
2988 # Generate default definitions for YACC, M4, LEX and other programs that run
2989 # on the build machine. These are used if the Makefile can't locate these
2990 # programs in objdir.
2991 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2992
2993 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2994 case " $build_configdirs " in
2995 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2996 esac
2997
2998 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2999 case " $build_configdirs " in
3000 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3001 esac
3002
3003 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3004 case " $build_configdirs " in
3005 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3006 esac
3007
3008 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3009 case " $build_configdirs " in
3010 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3011 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3012 esac
3013
3014 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3015 case " $build_configdirs " in
3016 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3017 esac
3018
3019 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3020 case " $build_configdirs " in
3021 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3022 *)
3023 changequote(,)
3024 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3025 # higher, else we use the "missing" dummy.
3026 if ${MAKEINFO} --version \
3027 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3028 :
3029 else
3030 MAKEINFO="$MISSING makeinfo"
3031 fi
3032 ;;
3033 changequote([,])
3034 esac
3035
3036 # FIXME: expect and dejagnu may become build tools?
3037
3038 AC_CHECK_PROGS(EXPECT, expect, expect)
3039 case " $configdirs " in
3040 *" expect "*)
3041 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3042 ;;
3043 esac
3044
3045 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3046 case " $configdirs " in
3047 *" dejagnu "*)
3048 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3049 ;;
3050 esac
3051
3052
3053 # Host tools.
3054 NCN_STRICT_CHECK_TOOLS(AR, ar)
3055 NCN_STRICT_CHECK_TOOLS(AS, as)
3056 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3057 NCN_STRICT_CHECK_TOOLS(LD, ld)
3058 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3059 NCN_STRICT_CHECK_TOOLS(NM, nm)
3060 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3061 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3062 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3063 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3064 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3065 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3066 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3067 AC_SUBST(CC)
3068 AC_SUBST(CXX)
3069 AC_SUBST(CFLAGS)
3070 AC_SUBST(CXXFLAGS)
3071
3072 # Target tools.
3073 AC_ARG_WITH([build-time-tools],
3074 [AS_HELP_STRING([--with-build-time-tools=PATH],
3075 [use given path to find target tools during the build])],
3076 [case x"$withval" in
3077 x/*) ;;
3078 *)
3079 with_build_time_tools=
3080 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3081 ;;
3082 esac],
3083 [with_build_time_tools=])
3084
3085 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3086 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3087 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3088 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
3089 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3090 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3091
3092 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3093 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3094 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3095 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3096 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3097 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3098 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3099 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3100 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3101 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3102 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3103 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3104
3105 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3106
3107 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3108 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3109 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3110 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3111 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3112 [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$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
3113 c++)
3114 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3115 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
3116 c++)
3117 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3118 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3119 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
3120 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
3121 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3122 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3123 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3124 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3125 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3126 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3127 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3128 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3129 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3130 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3131 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3132 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3133 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3134
3135 AC_SUBST(FLAGS_FOR_TARGET)
3136 AC_SUBST(RAW_CXX_FOR_TARGET)
3137
3138 # Certain tools may need extra flags.
3139 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3140 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3141 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3142
3143 # When building target libraries, except in a Canadian cross, we use
3144 # the same toolchain as the compiler we just built.
3145 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3146 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3147 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3148 if test $host = $build; then
3149 case " $configdirs " in
3150 *" gcc "*)
3151 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3152 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3153 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3154 ;;
3155 esac
3156 fi
3157
3158 AC_SUBST(COMPILER_AS_FOR_TARGET)
3159 AC_SUBST(COMPILER_LD_FOR_TARGET)
3160 AC_SUBST(COMPILER_NM_FOR_TARGET)
3161
3162 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3163 AC_ARG_ENABLE(maintainer-mode,
3164 [AS_HELP_STRING([--enable-maintainer-mode],
3165 [enable make rules and dependencies not useful
3166 (and sometimes confusing) to the casual installer])],
3167 USE_MAINTAINER_MODE=$enableval,
3168 USE_MAINTAINER_MODE=no)
3169 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3170 AC_SUBST(MAINTAINER_MODE_TRUE)
3171 AC_SUBST(MAINTAINER_MODE_FALSE)
3172 if test "$USE_MAINTAINER_MODE" = yes; then
3173 MAINTAINER_MODE_TRUE=
3174 MAINTAINER_MODE_FALSE='#'
3175 else
3176 MAINTAINER_MODE_TRUE='#'
3177 MAINTAINER_MODE_FALSE=
3178 fi
3179 MAINT=$MAINTAINER_MODE_TRUE
3180 AC_SUBST(MAINT)dnl
3181
3182 # ---------------------
3183 # GCC bootstrap support
3184 # ---------------------
3185
3186 # Stage specific cflags for build.
3187 stage1_cflags="-g"
3188 case $build in
3189 vax-*-*)
3190 case ${GCC} in
3191 yes) stage1_cflags="-g -Wa,-J" ;;
3192 *) stage1_cflags="-g -J" ;;
3193 esac ;;
3194 esac
3195
3196 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
3197 if test "$GCC" = yes -a "$ENABLE_BUILD_WITH_CXX" != yes; then
3198 saved_CFLAGS="$CFLAGS"
3199
3200 # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
3201 CFLAGS="$CFLAGS -fkeep-inline-functions"
3202 AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
3203 AC_TRY_COMPILE([
3204 #if (__GNUC__ < 3) \
3205 || (__GNUC__ == 3 && (__GNUC_MINOR__ < 3 \
3206 || (__GNUC_MINOR__ == 3 && __GNUC_PATCHLEVEL__ < 1)))
3207 #error http://gcc.gnu.org/PR29382
3208 #endif
3209 ],,
3210 [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
3211 [AC_MSG_RESULT([no])])
3212
3213 CFLAGS="$saved_CFLAGS"
3214 fi
3215
3216 AC_SUBST(stage1_cflags)
3217
3218 # Enable --enable-checking in stage1 of the compiler.
3219 AC_ARG_ENABLE(stage1-checking,
3220 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3221 [choose additional checking for stage1 of the compiler])],
3222 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3223 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3224 stage1_checking=--enable-checking=yes,types
3225 else
3226 stage1_checking=--enable-checking=$enable_checking,types
3227 fi])
3228 AC_SUBST(stage1_checking)
3229
3230 # Enable -Werror in bootstrap stage2 and later.
3231 AC_ARG_ENABLE(werror,
3232 [AS_HELP_STRING([--enable-werror],
3233 [enable -Werror in bootstrap stage2 and later])], [],
3234 [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3235 enable_werror=yes
3236 else
3237 enable_werror=no
3238 fi])
3239 case ${enable_werror} in
3240 yes) stage2_werror_flag="--enable-werror-always" ;;
3241 *) stage2_werror_flag="" ;;
3242 esac
3243 AC_SUBST(stage2_werror_flag)
3244
3245 # If using ENABLE_BUILD_POSTSTAGE1_WITH_CXX, pass
3246 # --enable-build-with-cxx after stage1.
3247 if test "$ENABLE_BUILD_POSTSTAGE1_WITH_CXX" = "yes"; then
3248 POSTSTAGE1_CONFIGURE_FLAGS=--enable-build-with-cxx
3249 else
3250 POSTSTAGE1_CONFIGURE_FLAGS=
3251 fi
3252 AC_SUBST(POSTSTAGE1_CONFIGURE_FLAGS)
3253
3254 # Specify what files to not compare during bootstrap.
3255
3256 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3257 case "$target" in
3258 hppa*64*-*-hpux*) ;;
3259 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
3260 esac
3261 case " $configdirs " in
3262 *" ppl "*) compare_exclusions="$compare_exclusions | ppl/src/ppl-config.o" ;;
3263 esac
3264 AC_SUBST(compare_exclusions)
3265
3266 AC_CONFIG_FILES([Makefile],
3267 [sed "$extrasub_build" Makefile |
3268 sed "$extrasub_host" |
3269 sed "$extrasub_target" > mf$$
3270 mv -f mf$$ Makefile],
3271 [extrasub_build="$extrasub_build"
3272 extrasub_host="$extrasub_host"
3273 extrasub_target="$extrasub_target"])
3274 AC_OUTPUT