| blob | 6192bb7b7dbd1656f79830e9b539ea32ef061c8a |
1 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
2 # 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
3 # 2014, 2015, 2016 Free Software Foundation, Inc.
4 #
5 # This file is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 3 of the License, or
8 # (at your option) any later version.
9 #
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program; see the file COPYING3. If not see
17 # <http://www.gnu.org/licenses/>.
19 ##############################################################################
20 ### WARNING: this file contains embedded tabs. Do not run untabify on this file.
22 m4_include(config/acx.m4)
23 m4_include(config/override.m4)
24 m4_include(config/proginstall.m4)
25 m4_include(config/elf.m4)
26 m4_include([libtool.m4])
27 m4_include([ltoptions.m4])
28 m4_include([ltsugar.m4])
29 m4_include([ltversion.m4])
30 m4_include([lt~obsolete.m4])
31 m4_include([config/isl.m4])
33 AC_INIT(move-if-change)
34 AC_PREREQ(2.64)
35 AC_DISABLE_OPTION_CHECKING
37 progname=$0
38 # if PWD already has a value, it is probably wrong.
39 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
41 # Export original configure arguments for use by sub-configures.
42 # Quote arguments with shell meta charatcers.
43 TOPLEVEL_CONFIGURE_ARGUMENTS=
44 set -- "$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)
65 # Find the build, host, and target systems.
66 ACX_NONCANONICAL_BUILD
67 ACX_NONCANONICAL_HOST
68 ACX_NONCANONICAL_TARGET
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,
79 AC_CANONICAL_SYSTEM
80 AC_ARG_PROGRAM
82 m4_pattern_allow([^AS_FOR_TARGET$])dnl
83 m4_pattern_allow([^AS_FOR_BUILD$])dnl
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
92 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
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
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
107 topsrcdir=$srcpwd
109 extra_host_args=
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.
115 # Subdirs will be configured in the order listed in build_configdirs,
116 # configdirs, or target_configdirs; see the serialization section below.
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.
122 # Double entries in build_configdirs, configdirs, or target_configdirs may
123 # cause circular dependencies and break everything horribly.
125 # these library is used by various programs built for the build
126 # environment
127 #
128 build_libs="build-libiberty build-libcpp"
130 # these tools are built for the build environment
131 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
133 # these libraries are used by various programs built for the host environment
134 #f
135 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv"
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 libcc1 gotools"
145 # these libraries are built for the target environment, and are built after
146 # the host libraries and the host tools (which may be a cross compiler)
147 # Note that libiberty is not a target library.
148 target_libraries="target-libgcc \
149 target-libbacktrace \
150 target-libgloss \
151 target-newlib \
152 target-libgomp \
153 target-libcilkrts \
154 target-liboffloadmic \
155 target-libhsail-rt \
156 target-libatomic \
157 target-libitm \
158 target-libstdc++-v3 \
159 target-libsanitizer \
160 target-libvtv \
161 target-libmpx \
162 target-libssp \
163 target-libquadmath \
164 target-libgfortran \
165 target-libffi \
166 target-libobjc \
167 target-libada \
168 target-libgo"
170 # these tools are built using the target libraries, and are intended to
171 # run only in the target environment
172 #
173 # note: any program that *uses* libraries that are in the "target_libraries"
174 # list belongs in this list.
175 #
176 target_tools="target-rda"
178 ################################################################################
180 ## All tools belong in one of the four categories, and are assigned above
181 ## We assign ${configdirs} this way to remove all embedded newlines. This
182 ## is important because configure will choke if they ever get through.
183 ## ${configdirs} is directories we build using the host tools.
184 ## ${target_configdirs} is directories we build using the target tools.
185 configdirs=`echo ${host_libs} ${host_tools}`
186 target_configdirs=`echo ${target_libraries} ${target_tools}`
187 build_configdirs=`echo ${build_libs} ${build_tools}`
189 m4_divert_text([PARSE_ARGS],
190 [case $srcdir in
191 *" "*)
192 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
193 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
194 m4_popdef([AS_MESSAGE_LOG_FD])dnl
195 ;;
196 esac
197 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
198 ])
200 ################################################################################
202 srcname="gnu development package"
204 # This gets set non-empty for some net releases of packages.
205 appdirs=""
207 # Define is_cross_compiler to save on calls to 'test'.
208 is_cross_compiler=
209 if test x"${host}" = x"${target}" ; then
210 is_cross_compiler=no
211 else
212 is_cross_compiler=yes
213 fi
215 # Find the build and target subdir names.
216 GCC_TOPLEV_SUBDIRS
217 # Be sure to cover against remnants of an in-tree build.
218 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
219 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
220 Use a pristine source tree when building in a separate tree])
221 fi
223 # Skipdirs are removed silently.
224 skipdirs=
225 # Noconfigdirs are removed loudly.
226 noconfigdirs=""
228 use_gnu_ld=
229 # Make sure we don't let GNU ld be added if we didn't want it.
230 if test x$with_gnu_ld = xno ; then
231 use_gnu_ld=no
232 noconfigdirs="$noconfigdirs ld gold"
233 fi
235 use_gnu_as=
236 # Make sure we don't let GNU as be added if we didn't want it.
237 if test x$with_gnu_as = xno ; then
238 use_gnu_as=no
239 noconfigdirs="$noconfigdirs gas"
240 fi
242 use_included_zlib=
243 AC_ARG_WITH(system-zlib,
244 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
245 # Make sure we don't let ZLIB be added if we didn't want it.
246 if test x$with_system_zlib = xyes ; then
247 use_included_zlib=no
248 noconfigdirs="$noconfigdirs zlib"
249 fi
251 # some tools are so dependent upon X11 that if we're not building with X,
252 # it's not even worth trying to configure, much less build, that tool.
254 case ${with_x} in
255 yes | "") ;; # the default value for this tree is that X11 is available
256 no)
257 skipdirs="${skipdirs} tk itcl libgui"
258 # We won't be able to build gdbtk without X.
259 enable_gdbtk=no
260 ;;
261 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
262 esac
264 # Some are only suitable for cross toolchains.
265 # Remove these if host=target.
266 cross_only="target-libgloss target-newlib target-opcodes"
268 case $is_cross_compiler in
269 no) skipdirs="${skipdirs} ${cross_only}" ;;
270 esac
272 # If both --with-headers and --with-libs are specified, default to
273 # --without-newlib.
274 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
275 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
276 if test x"${with_newlib}" = x ; then
277 with_newlib=no
278 fi
279 fi
281 # Recognize --with-newlib/--without-newlib.
282 case ${with_newlib} in
283 no) skipdirs="${skipdirs} target-newlib" ;;
284 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
285 esac
287 AC_ARG_ENABLE(as-accelerator-for,
288 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
289 [build as offload target compiler.
290 Specify offload host triple by ARG])])
292 AC_ARG_ENABLE(offload-targets,
293 [AS_HELP_STRING([--enable-offload-targets=LIST],
294 [enable offloading to devices from comma-separated LIST of
295 TARGET[=DIR]. Use optional path to find offload target compiler
296 during the build])],
297 [
298 if test x"$enable_offload_targets" = x; then
299 AC_MSG_ERROR([no offload targets specified])
300 fi
301 ], [enable_offload_targets=])
303 # Handle --enable-gold, --enable-ld.
304 # --disable-gold [--enable-ld]
305 # Build only ld. Default option.
306 # --enable-gold [--enable-ld]
307 # Build both gold and ld. Install gold as "ld.gold", install ld
308 # as "ld.bfd" and "ld".
309 # --enable-gold=default [--enable-ld]
310 # Build both gold and ld. Install gold as "ld.gold" and "ld",
311 # install ld as "ld.bfd".
312 # --enable-gold[=default] --disable-ld
313 # Build only gold, which is then installed as both "ld.gold" and "ld".
314 # --enable-gold --enable-ld=default
315 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
316 # and ld.bfd).
317 # In other words, ld is default
318 # --enable-gold=default --enable-ld=default
319 # Error.
321 default_ld=
322 AC_ARG_ENABLE(gold,
323 [AS_HELP_STRING([[--enable-gold[=ARG]]],
324 [build gold @<:@ARG={default,yes,no}@:>@])],
325 ENABLE_GOLD=$enableval,
326 ENABLE_GOLD=no)
327 case "${ENABLE_GOLD}" in
328 yes|default)
329 # Check for ELF target.
330 is_elf=no
331 case "${target}" in
332 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
333 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
334 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
335 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
336 case "${target}" in
337 *-*-linux*aout* | *-*-linux*oldld*)
338 ;;
339 *)
340 is_elf=yes
341 ;;
342 esac
343 esac
345 if test "$is_elf" = "yes"; then
346 # Check for target supported by gold.
347 case "${target}" in
348 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
349 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
350 configdirs="$configdirs gold"
351 if test x${ENABLE_GOLD} = xdefault; then
352 default_ld=gold
353 fi
354 ENABLE_GOLD=yes
355 ;;
356 esac
357 fi
358 ;;
359 no)
360 ;;
361 *)
362 AC_MSG_ERROR([invalid --enable-gold argument])
363 ;;
364 esac
366 AC_ARG_ENABLE(ld,
367 [AS_HELP_STRING([[--enable-ld[=ARG]]],
368 [build ld @<:@ARG={default,yes,no}@:>@])],
369 ENABLE_LD=$enableval,
370 ENABLE_LD=yes)
372 case "${ENABLE_LD}" in
373 default)
374 if test x${default_ld} != x; then
375 AC_MSG_ERROR([either gold or ld can be the default ld])
376 fi
377 ;;
378 yes)
379 ;;
380 no)
381 if test x${ENABLE_GOLD} != xyes; then
382 AC_MSG_WARN([neither ld nor gold are enabled])
383 fi
384 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
385 ;;
386 *)
387 AC_MSG_ERROR([invalid --enable-ld argument])
388 ;;
389 esac
391 # PR gas/19109
392 # Decide the default method for compressing debug sections.
393 # Provide a configure time option to override our default.
394 AC_ARG_ENABLE(compressed_debug_sections,
395 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
396 [Enable compressed debug sections for gas, gold or ld by
397 default])],
398 [
399 if test x"$enable_compressed_debug_sections" = xyes; then
400 AC_MSG_ERROR([no program with compressed debug sections specified])
401 fi
402 ], [enable_compressed_debug_sections=])
404 # Configure extra directories which are host specific
406 case "${host}" in
407 *-cygwin*)
408 configdirs="$configdirs libtermcap" ;;
409 esac
411 # A target can indicate whether a language isn't supported for some reason.
412 # Only spaces may be used in this macro; not newlines or tabs.
413 unsupported_languages=
415 # Remove more programs from consideration, based on the host or
416 # target this usually means that a port of the program doesn't
417 # exist yet.
419 case "${host}" in
420 i[[3456789]]86-*-msdosdjgpp*)
421 noconfigdirs="$noconfigdirs tcl tk itcl"
422 ;;
423 esac
426 AC_ARG_ENABLE(libquadmath,
427 AS_HELP_STRING([--disable-libquadmath],
428 [do not build libquadmath directory]),
429 ENABLE_LIBQUADMATH=$enableval,
430 ENABLE_LIBQUADMATH=yes)
431 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
432 noconfigdirs="$noconfigdirs target-libquadmath"
433 fi
436 AC_ARG_ENABLE(libquadmath-support,
437 AS_HELP_STRING([--disable-libquadmath-support],
438 [disable libquadmath support for Fortran]),
439 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
440 ENABLE_LIBQUADMATH_SUPPORT=yes)
441 enable_libquadmath_support=
442 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
443 enable_libquadmath_support=no
444 fi
447 AC_ARG_ENABLE(libada,
448 [AS_HELP_STRING([--enable-libada], [build libada directory])],
449 ENABLE_LIBADA=$enableval,
450 ENABLE_LIBADA=yes)
451 if test "${ENABLE_LIBADA}" != "yes" ; then
452 noconfigdirs="$noconfigdirs gnattools"
453 fi
455 AC_ARG_ENABLE(libssp,
456 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
457 ENABLE_LIBSSP=$enableval,
458 ENABLE_LIBSSP=yes)
460 AC_ARG_ENABLE(libstdcxx,
461 AS_HELP_STRING([--disable-libstdcxx],
462 [do not build libstdc++-v3 directory]),
463 ENABLE_LIBSTDCXX=$enableval,
464 ENABLE_LIBSTDCXX=default)
465 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
466 noconfigdirs="$noconfigdirs target-libstdc++-v3"
467 fi]
469 # If this is accelerator compiler and its target is intelmic we enable
470 # target liboffloadmic by default. If this is compiler with offloading
471 # for intelmic we enable host liboffloadmic by default. Otherwise
472 # liboffloadmic is disabled by default.
473 AC_ARG_ENABLE([liboffloadmic],
474 AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
475 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
476 [case "$enableval" in
477 no | host | target)
478 enable_liboffloadmic=$enableval ;;
479 *)
480 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
481 esac],
482 [if test x"$enable_as_accelerator_for" != x; then
483 case "${target}" in
484 *-intelmic-* | *-intelmicemul-*)
485 enable_liboffloadmic=target
486 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
487 ;;
488 *)
489 enable_liboffloadmic=no
490 ;;
491 esac
492 else
493 case "${enable_offload_targets}" in
494 *-intelmic-* | *-intelmicemul-*)
495 enable_liboffloadmic=host
496 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
497 ;;
498 *)
499 enable_liboffloadmic=no
500 ;;
501 esac
502 fi])
503 AC_SUBST(extra_liboffloadmic_configure_flags)
505 # Enable libgomp by default on hosted POSIX systems, and a few others.
506 if test x$enable_libgomp = x ; then
507 case "${target}" in
508 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
509 ;;
510 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
511 ;;
512 *-*-solaris2* | *-*-hpux11*)
513 ;;
514 *-*-darwin* | *-*-aix*)
515 ;;
516 nvptx*-*-*)
517 ;;
518 *)
519 noconfigdirs="$noconfigdirs target-libgomp"
520 ;;
521 esac
522 fi
524 # Disable libatomic on unsupported systems.
525 if test -d ${srcdir}/libatomic; then
526 if test x$enable_libatomic = x; then
527 AC_MSG_CHECKING([for libatomic support])
528 if (srcdir=${srcdir}/libatomic; \
529 . ${srcdir}/configure.tgt; \
530 test -n "$UNSUPPORTED")
531 then
532 AC_MSG_RESULT([no])
533 noconfigdirs="$noconfigdirs target-libatomic"
534 else
535 AC_MSG_RESULT([yes])
536 fi
537 fi
538 fi
540 # Disable libcilkrts on unsupported systems.
541 if test -d ${srcdir}/libcilkrts; then
542 if test x$enable_libcilkrts = x; then
543 AC_MSG_CHECKING([for libcilkrts support])
544 if (srcdir=${srcdir}/libcilkrts; \
545 . ${srcdir}/configure.tgt; \
546 test -n "$UNSUPPORTED")
547 then
548 AC_MSG_RESULT([no])
549 noconfigdirs="$noconfigdirs target-libcilkrts"
550 else
551 AC_MSG_RESULT([yes])
552 fi
553 fi
554 fi
556 # Disable liboffloadmic on unsupported systems.
557 if test -d ${srcdir}/liboffloadmic; then
558 if test x$enable_liboffloadmic != xno; then
559 AC_MSG_CHECKING([for liboffloadmic support])
560 if (srcdir=${srcdir}/liboffloadmic; \
561 . ${srcdir}/configure.tgt; \
562 test -n "$UNSUPPORTED")
563 then
564 AC_MSG_RESULT([no])
565 noconfigdirs="$noconfigdirs target-liboffloadmic"
566 else
567 AC_MSG_RESULT([yes])
568 fi
569 fi
570 fi
572 # Disable libitm on unsupported systems.
573 if test -d ${srcdir}/libitm; then
574 if test x$enable_libitm = x; then
575 AC_MSG_CHECKING([for libitm support])
576 if (srcdir=${srcdir}/libitm; \
577 . ${srcdir}/configure.tgt; \
578 test -n "$UNSUPPORTED")
579 then
580 AC_MSG_RESULT([no])
581 noconfigdirs="$noconfigdirs target-libitm"
582 else
583 AC_MSG_RESULT([yes])
584 fi
585 fi
586 fi
588 # Disable libsanitizer on unsupported systems.
589 if test -d ${srcdir}/libsanitizer; then
590 if test x$enable_libsanitizer = x; then
591 AC_MSG_CHECKING([for libsanitizer support])
592 if (srcdir=${srcdir}/libsanitizer; \
593 . ${srcdir}/configure.tgt; \
594 test -n "$UNSUPPORTED")
595 then
596 AC_MSG_RESULT([no])
597 noconfigdirs="$noconfigdirs target-libsanitizer"
598 else
599 AC_MSG_RESULT([yes])
600 fi
601 fi
602 fi
604 # Disable libvtv on unsupported systems.
605 if test -d ${srcdir}/libvtv; then
606 if test x$enable_libvtv = x; then
607 AC_MSG_CHECKING([for libvtv support])
608 if (srcdir=${srcdir}/libvtv; \
609 . ${srcdir}/configure.tgt; \
610 test "$VTV_SUPPORTED" != "yes")
611 then
612 AC_MSG_RESULT([no])
613 noconfigdirs="$noconfigdirs target-libvtv"
614 else
615 AC_MSG_RESULT([yes])
616 fi
617 fi
618 fi
621 # Enable libmpx on supported systems by request.
622 if test -d ${srcdir}/libmpx; then
623 if test x$enable_libmpx = x; then
624 AC_MSG_CHECKING([for libmpx support])
625 if (srcdir=${srcdir}/libmpx; \
626 . ${srcdir}/configure.tgt; \
627 test "$LIBMPX_SUPPORTED" != "yes")
628 then
629 AC_MSG_RESULT([no])
630 noconfigdirs="$noconfigdirs target-libmpx"
631 else
632 AC_MSG_RESULT([yes])
633 fi
634 fi
635 fi
637 # Disable libhsail-rt on unsupported systems.
638 if test -d ${srcdir}/libhsail-rt; then
639 if test x$enable_libhsail_rt = x; then
640 AC_MSG_CHECKING([for libhsail-rt support])
641 if (srcdir=${srcdir}/libhsail-rt; \
642 . ${srcdir}/configure.tgt; \
643 test -n "$UNSUPPORTED")
644 then
645 AC_MSG_RESULT([no])
646 unsupported_languages="$unsupported_languages brig"
647 # This implicitly disables also target-libhsail-rt as it won't
648 # get added to the build without BRIG FE.
649 else
650 AC_MSG_RESULT([yes])
651 fi
652 fi
653 fi
656 # Disable libquadmath for some systems.
657 case "${target}" in
658 avr-*-*)
659 noconfigdirs="$noconfigdirs target-libquadmath"
660 ;;
661 # libquadmath is unused on AIX and libquadmath build process use of
662 # LD_LIBRARY_PATH can break AIX bootstrap.
663 powerpc-*-aix* | rs6000-*-aix*)
664 noconfigdirs="$noconfigdirs target-libquadmath"
665 ;;
666 esac
668 # Disable libssp for some systems.
669 case "${target}" in
670 avr-*-*)
671 # No hosted I/O support.
672 noconfigdirs="$noconfigdirs target-libssp"
673 ;;
674 powerpc-*-aix* | rs6000-*-aix*)
675 noconfigdirs="$noconfigdirs target-libssp"
676 ;;
677 rl78-*-*)
678 # libssp uses a misaligned load to trigger a fault, but the RL78
679 # doesn't fault for those - instead, it gives a build-time error
680 # for explicit misaligned loads.
681 noconfigdirs="$noconfigdirs target-libssp"
682 ;;
683 visium-*-*)
684 # No hosted I/O support.
685 noconfigdirs="$noconfigdirs target-libssp"
686 ;;
687 esac
689 # Disable libstdc++-v3 for some systems.
690 # Allow user to override this if they pass --enable-libstdc++-v3
691 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
692 case "${target}" in
693 *-*-vxworks*)
694 # VxWorks uses the Dinkumware C++ library.
695 noconfigdirs="$noconfigdirs target-libstdc++-v3"
696 ;;
697 arm*-wince-pe*)
698 # the C++ libraries don't build on top of CE's C libraries
699 noconfigdirs="$noconfigdirs target-libstdc++-v3"
700 ;;
701 avr-*-*)
702 noconfigdirs="$noconfigdirs target-libstdc++-v3"
703 ;;
704 ft32-*-*)
705 noconfigdirs="$noconfigdirs target-libstdc++-v3"
706 ;;
707 esac
708 fi
710 # Disable Fortran for some systems.
711 case "${target}" in
712 mmix-*-*)
713 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
714 unsupported_languages="$unsupported_languages fortran"
715 ;;
716 esac
718 # Disable libffi for some systems.
719 case "${target}" in
720 powerpc-*-darwin*)
721 ;;
722 i[[3456789]]86-*-darwin*)
723 ;;
724 x86_64-*-darwin[[912]]*)
725 ;;
726 *-*-darwin*)
727 noconfigdirs="$noconfigdirs target-libffi"
728 ;;
729 *-*-netware*)
730 noconfigdirs="$noconfigdirs target-libffi"
731 ;;
732 *-*-phoenix*)
733 noconfigdirs="$noconfigdirs target-libffi"
734 ;;
735 *-*-rtems*)
736 noconfigdirs="$noconfigdirs target-libffi"
737 ;;
738 *-*-tpf*)
739 noconfigdirs="$noconfigdirs target-libffi"
740 ;;
741 *-*-uclinux*)
742 noconfigdirs="$noconfigdirs target-libffi"
743 ;;
744 *-*-vxworks*)
745 noconfigdirs="$noconfigdirs target-libffi"
746 ;;
747 aarch64*-*-freebsd*)
748 noconfigdirs="$noconfigdirs target-libffi"
749 ;;
750 alpha*-*-*vms*)
751 noconfigdirs="$noconfigdirs target-libffi"
752 ;;
753 arm*-*-freebsd*)
754 noconfigdirs="$noconfigdirs target-libffi"
755 ;;
756 arm-wince-pe)
757 noconfigdirs="$noconfigdirs target-libffi"
758 ;;
759 arm*-*-symbianelf*)
760 noconfigdirs="$noconfigdirs target-libffi"
761 ;;
762 cris-*-* | crisv32-*-*)
763 case "${target}" in
764 *-*-linux*)
765 ;;
766 *) # See PR46792 regarding target-libffi.
767 noconfigdirs="$noconfigdirs target-libffi";;
768 esac
769 ;;
770 hppa*64*-*-hpux*)
771 noconfigdirs="$noconfigdirs target-libffi"
772 ;;
773 hppa*-hp-hpux11*)
774 ;;
775 hppa*-*-hpux*)
776 noconfigdirs="$noconfigdirs target-libffi"
777 ;;
778 ia64*-*-*vms*)
779 noconfigdirs="$noconfigdirs target-libffi"
780 ;;
781 i[[3456789]]86-w64-mingw*)
782 noconfigdirs="$noconfigdirs target-libffi"
783 ;;
784 i[[3456789]]86-*-mingw*)
785 noconfigdirs="$noconfigdirs target-libffi"
786 ;;
787 x86_64-*-mingw*)
788 noconfigdirs="$noconfigdirs target-libffi"
789 ;;
790 mmix-*-*)
791 noconfigdirs="$noconfigdirs target-libffi"
792 ;;
793 powerpc-*-aix*)
794 # copied from rs6000-*-* entry
795 noconfigdirs="$noconfigdirs target-libffi"
796 ;;
797 rs6000-*-aix*)
798 noconfigdirs="$noconfigdirs target-libffi"
799 ;;
800 ft32-*-*)
801 noconfigdirs="$noconfigdirs target-libffi"
802 ;;
803 *-*-lynxos*)
804 noconfigdirs="$noconfigdirs target-libffi"
805 ;;
806 esac
808 # Disable the go frontend on systems where it is known to not work. Please keep
809 # this in sync with contrib/config-list.mk.
810 case "${target}" in
811 *-*-darwin* | *-*-cygwin* | *-*-mingw* | *-*-aix*)
812 unsupported_languages="$unsupported_languages go"
813 ;;
814 esac
816 # Disable libgo for some systems where it is known to not work.
817 # For testing, you can easily override this with --enable-libgo.
818 if test x$enable_libgo = x; then
819 case "${target}" in
820 *-*-darwin*)
821 # PR 46986
822 noconfigdirs="$noconfigdirs target-libgo"
823 ;;
824 *-*-cygwin* | *-*-mingw*)
825 noconfigdirs="$noconfigdirs target-libgo"
826 ;;
827 *-*-aix*)
828 noconfigdirs="$noconfigdirs target-libgo"
829 ;;
830 esac
831 fi
833 # Default libgloss CPU subdirectory.
834 libgloss_dir="$target_cpu"
836 case "${target}" in
837 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
838 libgloss_dir=wince
839 ;;
840 aarch64*-*-* )
841 libgloss_dir=aarch64
842 ;;
843 arm*-*-*)
844 libgloss_dir=arm
845 ;;
846 cris-*-* | crisv32-*-*)
847 libgloss_dir=cris
848 ;;
849 hppa*-*-*)
850 libgloss_dir=pa
851 ;;
852 i[[3456789]]86-*-*)
853 libgloss_dir=i386
854 ;;
855 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
856 libgloss_dir=m68hc11
857 ;;
858 m68*-*-* | fido-*-*)
859 libgloss_dir=m68k
860 ;;
861 mips*-*-*)
862 libgloss_dir=mips
863 ;;
864 powerpc*-*-*)
865 libgloss_dir=rs6000
866 ;;
867 sparc*-*-*)
868 libgloss_dir=sparc
869 ;;
870 esac
872 # Disable newlib and libgloss for various target OSes.
873 case "${target}" in
874 alpha*-dec-osf*)
875 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
876 ;;
877 i[[3456789]]86-*-linux*)
878 # This section makes it possible to build newlib natively on linux.
879 # If we are using a cross compiler then don't configure newlib.
880 if test x${is_cross_compiler} != xno ; then
881 noconfigdirs="$noconfigdirs target-newlib"
882 fi
883 noconfigdirs="$noconfigdirs target-libgloss"
884 # If we are not using a cross compiler, do configure newlib.
885 # Note however, that newlib will only be configured in this situation
886 # if the --with-newlib option has been given, because otherwise
887 # 'target-newlib' will appear in skipdirs.
888 ;;
889 i[[3456789]]86-*-rdos*)
890 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
891 ;;
892 sh*-*-pe|mips*-*-pe|arm-wince-pe)
893 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
894 ;;
895 sparc-*-sunos4*)
896 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
897 ;;
898 *-*-aix*)
899 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
900 ;;
901 *-*-beos*)
902 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
903 ;;
904 *-*-chorusos)
905 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
906 ;;
907 *-*-dragonfly*)
908 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
909 ;;
910 *-*-freebsd*)
911 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
912 ;;
913 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
914 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
915 ;;
916 *-*-lynxos*)
917 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
918 ;;
919 *-*-mingw*)
920 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
921 ;;
922 *-*-netbsd*)
923 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
924 ;;
925 *-*-netware*)
926 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
927 ;;
928 *-*-tpf*)
929 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
930 ;;
931 *-*-uclinux*)
932 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
933 ;;
934 *-*-vxworks*)
935 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
936 ;;
937 esac
939 case "${target}" in
940 *-*-chorusos)
941 ;;
942 aarch64-*-darwin*)
943 noconfigdirs="$noconfigdirs ld gas gdb gprof"
944 noconfigdirs="$noconfigdirs sim target-rda"
945 ;;
946 arm-*-darwin*)
947 noconfigdirs="$noconfigdirs ld gas gdb gprof"
948 noconfigdirs="$noconfigdirs sim target-rda"
949 ;;
950 powerpc-*-darwin*)
951 noconfigdirs="$noconfigdirs ld gas gdb gprof"
952 noconfigdirs="$noconfigdirs sim target-rda"
953 ;;
954 i[[3456789]]86-*-darwin*)
955 noconfigdirs="$noconfigdirs ld gprof"
956 noconfigdirs="$noconfigdirs sim target-rda"
957 ;;
958 x86_64-*-darwin[[912]]*)
959 noconfigdirs="$noconfigdirs ld gas gprof"
960 noconfigdirs="$noconfigdirs sim target-rda"
961 ;;
962 *-*-darwin*)
963 noconfigdirs="$noconfigdirs ld gas gdb gprof"
964 noconfigdirs="$noconfigdirs sim target-rda"
965 ;;
966 *-*-dragonfly*)
967 ;;
968 *-*-freebsd*)
969 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
970 && test -f /usr/local/include/gmp.h; then
971 with_gmp=/usr/local
972 fi
973 ;;
974 *-*-kaos*)
975 # Remove unsupported stuff on all kaOS configurations.
976 noconfigdirs="$noconfigdirs target-libgloss"
977 ;;
978 *-*-netbsd*)
979 ;;
980 *-*-netware*)
981 ;;
982 *-*-phoenix*)
983 noconfigdirs="$noconfigdirs target-libgloss"
984 ;;
985 *-*-rtems*)
986 noconfigdirs="$noconfigdirs target-libgloss"
987 # this is not caught below because this stanza matches earlier
988 case $target in
989 or1k*-*-*) noconfigdirs="$noconfigdirs gdb" ;;
990 esac
991 ;;
992 # The tpf target doesn't support gdb yet.
993 *-*-tpf*)
994 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
995 ;;
996 *-*-uclinux*)
997 noconfigdirs="$noconfigdirs target-rda"
998 ;;
999 *-*-vxworks*)
1000 ;;
1001 alpha*-dec-osf*)
1002 # ld works, but does not support shared libraries.
1003 # gas doesn't generate exception information.
1004 noconfigdirs="$noconfigdirs gas ld"
1005 ;;
1006 alpha*-*-*vms*)
1007 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1008 ;;
1009 alpha*-*-*)
1010 # newlib is not 64 bit ready
1011 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1012 ;;
1013 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1014 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1015 ;;
1016 arc*-*-*)
1017 noconfigdirs="$noconfigdirs sim"
1018 ;;
1019 arm-*-pe*)
1020 noconfigdirs="$noconfigdirs target-libgloss"
1021 ;;
1022 arm-*-riscix*)
1023 noconfigdirs="$noconfigdirs ld target-libgloss"
1024 ;;
1025 avr-*-*)
1026 if test x${with_avrlibc} != xno; then
1027 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1028 fi
1029 ;;
1030 c4x-*-* | tic4x-*-*)
1031 noconfigdirs="$noconfigdirs target-libgloss"
1032 ;;
1033 tic54x-*-*)
1034 noconfigdirs="$noconfigdirs target-libgloss gdb"
1035 ;;
1036 d10v-*-*)
1037 noconfigdirs="$noconfigdirs target-libgloss"
1038 ;;
1039 d30v-*-*)
1040 noconfigdirs="$noconfigdirs gdb"
1041 ;;
1042 fr30-*-elf*)
1043 noconfigdirs="$noconfigdirs gdb"
1044 ;;
1045 ft32-*-*)
1046 noconfigdirs="$noconfigdirs target-rda gprof"
1047 ;;
1048 moxie-*-*)
1049 noconfigdirs="$noconfigdirs"
1050 ;;
1051 h8300*-*-*)
1052 noconfigdirs="$noconfigdirs target-libgloss"
1053 ;;
1054 h8500-*-*)
1055 noconfigdirs="$noconfigdirs target-libgloss"
1056 ;;
1057 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1058 ;;
1059 hppa*64*-*-hpux*)
1060 noconfigdirs="$noconfigdirs gdb"
1061 ;;
1062 hppa*-*-hpux11*)
1063 noconfigdirs="$noconfigdirs gdb ld"
1064 ;;
1065 hppa*64*-*-linux*)
1066 ;;
1067 hppa*-*-linux*)
1068 ;;
1069 hppa*-*-*elf* | \
1070 hppa*-*-lites* | \
1071 hppa*-*-openbsd* | \
1072 hppa*64*-*-*)
1073 ;;
1074 hppa*-*-pro*)
1075 ;;
1076 hppa*-*-*)
1077 noconfigdirs="$noconfigdirs ld"
1078 ;;
1079 i960-*-*)
1080 noconfigdirs="$noconfigdirs gdb"
1081 ;;
1082 ia64*-*-elf*)
1083 # No gdb support yet.
1084 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1085 ;;
1086 ia64*-**-hpux*)
1087 # No ld support yet.
1088 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1089 ;;
1090 ia64*-*-*vms*)
1091 # No ld support yet.
1092 noconfigdirs="$noconfigdirs libgui itcl ld"
1093 ;;
1094 i[[3456789]]86-w64-mingw*)
1095 ;;
1096 i[[3456789]]86-*-mingw*)
1097 target_configdirs="$target_configdirs target-winsup"
1098 ;;
1099 *-*-cygwin*)
1100 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1101 noconfigdirs="$noconfigdirs target-libgloss"
1102 # always build newlib if winsup directory is present.
1103 if test -d "$srcdir/winsup/cygwin"; then
1104 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1105 elif test -d "$srcdir/newlib"; then
1106 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1107 fi
1108 ;;
1109 i[[3456789]]86-*-pe)
1110 noconfigdirs="$noconfigdirs target-libgloss"
1111 ;;
1112 i[[3456789]]86-*-sco3.2v5*)
1113 # The linker does not yet know about weak symbols in COFF,
1114 # and is not configured to handle mixed ELF and COFF.
1115 noconfigdirs="$noconfigdirs ld target-libgloss"
1116 ;;
1117 i[[3456789]]86-*-sco*)
1118 noconfigdirs="$noconfigdirs gprof target-libgloss"
1119 ;;
1120 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1121 noconfigdirs="$noconfigdirs target-libgloss"
1122 ;;
1123 i[[3456789]]86-*-sysv4*)
1124 noconfigdirs="$noconfigdirs target-libgloss"
1125 ;;
1126 i[[3456789]]86-*-beos*)
1127 noconfigdirs="$noconfigdirs gdb"
1128 ;;
1129 i[[3456789]]86-*-rdos*)
1130 noconfigdirs="$noconfigdirs gdb"
1131 ;;
1132 mmix-*-*)
1133 noconfigdirs="$noconfigdirs gdb"
1134 ;;
1135 mt-*-*)
1136 noconfigdirs="$noconfigdirs sim"
1137 ;;
1138 powerpc-*-aix*)
1139 # copied from rs6000-*-* entry
1140 noconfigdirs="$noconfigdirs gprof"
1141 ;;
1142 powerpc*-*-winnt* | powerpc*-*-pe*)
1143 target_configdirs="$target_configdirs target-winsup"
1144 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1145 # always build newlib.
1146 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1147 ;;
1148 # This is temporary until we can link against shared libraries
1149 powerpcle-*-solaris*)
1150 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1151 ;;
1152 powerpc-*-beos*)
1153 noconfigdirs="$noconfigdirs gdb"
1154 ;;
1155 rs6000-*-lynxos*)
1156 noconfigdirs="$noconfigdirs gprof"
1157 ;;
1158 rs6000-*-aix*)
1159 noconfigdirs="$noconfigdirs gprof"
1160 ;;
1161 rs6000-*-*)
1162 noconfigdirs="$noconfigdirs gprof"
1163 ;;
1164 m68k-apollo-*)
1165 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1166 ;;
1167 microblaze*)
1168 noconfigdirs="$noconfigdirs gprof"
1169 ;;
1170 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1171 if test x$with_newlib = xyes; then
1172 noconfigdirs="$noconfigdirs gprof"
1173 fi
1174 ;;
1175 mips*-*-irix5*)
1176 noconfigdirs="$noconfigdirs gprof target-libgloss"
1177 ;;
1178 mips*-*-irix6*)
1179 noconfigdirs="$noconfigdirs gprof target-libgloss"
1180 ;;
1181 mips*-*-bsd*)
1182 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1183 ;;
1184 mips*-*-linux*)
1185 ;;
1186 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1187 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1188 noconfigdirs="$noconfigdirs ld gas gprof"
1189 ;;
1190 mips*-*-*)
1191 noconfigdirs="$noconfigdirs gprof"
1192 ;;
1193 nvptx*-*-*)
1194 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1195 ;;
1196 or1k*-*-*)
1197 noconfigdirs="$noconfigdirs gdb"
1198 ;;
1199 sh-*-*)
1200 case "${target}" in
1201 sh*-*-elf)
1202 ;;
1203 *)
1204 noconfigdirs="$noconfigdirs target-libgloss" ;;
1205 esac
1206 ;;
1207 sparc-*-sunos4*)
1208 if test x${is_cross_compiler} = xno ; then
1209 use_gnu_ld=no
1210 fi
1211 ;;
1212 tic6x-*-*)
1213 noconfigdirs="$noconfigdirs sim"
1214 ;;
1215 tilepro*-*-* | tilegx*-*-*)
1216 noconfigdirs="$noconfigdirs sim"
1217 ;;
1218 v810-*-*)
1219 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1220 ;;
1221 vax-*-*)
1222 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1223 ;;
1224 esac
1226 # If we aren't building newlib, then don't build libgloss, since libgloss
1227 # depends upon some newlib header files.
1228 case "${noconfigdirs}" in
1229 *target-libgloss*) ;;
1230 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1231 esac
1233 # Work in distributions that contain no compiler tools, like Autoconf.
1234 host_makefile_frag=/dev/null
1235 if test -d ${srcdir}/config ; then
1236 case "${host}" in
1237 i[[3456789]]86-*-msdosdjgpp*)
1238 host_makefile_frag="config/mh-djgpp"
1239 ;;
1240 *-cygwin*)
1241 ACX_CHECK_CYGWIN_CAT_WORKS
1242 host_makefile_frag="config/mh-cygwin"
1243 ;;
1244 *-mingw*)
1245 host_makefile_frag="config/mh-mingw"
1246 ;;
1247 alpha*-linux*)
1248 host_makefile_frag="config/mh-alpha-linux"
1249 ;;
1250 hppa*-hp-hpux10*)
1251 host_makefile_frag="config/mh-pa-hpux10"
1252 ;;
1253 hppa*-hp-hpux*)
1254 host_makefile_frag="config/mh-pa"
1255 ;;
1256 hppa*-*)
1257 host_makefile_frag="config/mh-pa"
1258 ;;
1259 *-*-darwin*)
1260 host_makefile_frag="config/mh-darwin"
1261 ;;
1262 powerpc-*-aix*)
1263 host_makefile_frag="config/mh-ppc-aix"
1264 ;;
1265 rs6000-*-aix*)
1266 host_makefile_frag="config/mh-ppc-aix"
1267 ;;
1268 esac
1269 fi
1271 if test "${build}" != "${host}" ; then
1272 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1273 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1274 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1275 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1276 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1277 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1278 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1279 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1280 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1281 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1282 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1283 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1284 else
1285 AR_FOR_BUILD="\$(AR)"
1286 AS_FOR_BUILD="\$(AS)"
1287 CC_FOR_BUILD="\$(CC)"
1288 CXX_FOR_BUILD="\$(CXX)"
1289 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1290 GOC_FOR_BUILD="\$(GOC)"
1291 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1292 LD_FOR_BUILD="\$(LD)"
1293 NM_FOR_BUILD="\$(NM)"
1294 RANLIB_FOR_BUILD="\$(RANLIB)"
1295 WINDRES_FOR_BUILD="\$(WINDRES)"
1296 WINDMC_FOR_BUILD="\$(WINDMC)"
1297 fi
1299 AC_PROG_CC
1300 AC_PROG_CXX
1302 # We must set the default linker to the linker used by gcc for the correct
1303 # operation of libtool. If LD is not defined and we are using gcc, try to
1304 # set the LD default to the ld used by gcc.
1305 if test -z "$LD"; then
1306 if test "$GCC" = yes; then
1307 case $build in
1308 *-*-mingw*)
1309 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1310 *)
1311 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1312 esac
1313 case $gcc_prog_ld in
1314 # Accept absolute paths.
1315 [[\\/]* | [A-Za-z]:[\\/]*)]
1316 LD="$gcc_prog_ld" ;;
1317 esac
1318 fi
1319 fi
1321 # Check whether -static-libstdc++ -static-libgcc is supported.
1322 have_static_libs=no
1323 if test "$GCC" = yes; then
1324 saved_LDFLAGS="$LDFLAGS"
1326 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1327 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1328 AC_LANG_PUSH(C++)
1329 AC_LINK_IFELSE([
1330 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1331 #error -static-libstdc++ not implemented
1332 #endif
1333 int main() {}],
1334 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1335 [AC_MSG_RESULT([no])])
1336 AC_LANG_POP(C++)
1338 LDFLAGS="$saved_LDFLAGS"
1339 fi
1341 ACX_PROG_GNAT
1342 ACX_PROG_CMP_IGNORE_INITIAL
1344 AC_ARG_ENABLE([bootstrap],
1345 [AS_HELP_STRING([--enable-bootstrap],
1346 [enable bootstrapping @<:@yes if native build@:>@])],,
1347 enable_bootstrap=default)
1349 # Issue errors and warnings for invalid/strange bootstrap combinations.
1350 if test -r $srcdir/gcc/configure; then
1351 have_compiler=yes
1352 else
1353 have_compiler=no
1354 fi
1356 case "$have_compiler:$host:$target:$enable_bootstrap" in
1357 *:*:*:no) ;;
1359 # Default behavior. Enable bootstrap if we have a compiler
1360 # and we are in a native configuration.
1361 yes:$build:$build:default)
1362 enable_bootstrap=yes ;;
1364 *:*:*:default)
1365 enable_bootstrap=no ;;
1367 # We have a compiler and we are in a native configuration, bootstrap is ok
1368 yes:$build:$build:yes)
1369 ;;
1371 # Other configurations, but we have a compiler. Assume the user knows
1372 # what he's doing.
1373 yes:*:*:yes)
1374 AC_MSG_WARN([trying to bootstrap a cross compiler])
1375 ;;
1377 # No compiler: if they passed --enable-bootstrap explicitly, fail
1378 no:*:*:yes)
1379 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1381 # Fail if wrong command line
1382 *)
1383 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1384 ;;
1385 esac
1387 # When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1388 # C++98 compiler can still start the bootstrap.
1389 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1390 CXX="$CXX -std=gnu++98"
1391 fi
1393 # Used for setting $lt_cv_objdir
1394 _LT_CHECK_OBJDIR
1396 # Check for GMP, MPFR and MPC
1397 gmplibs="-lmpc -lmpfr -lgmp"
1398 gmpinc=
1399 have_gmp=no
1401 # Specify a location for mpc
1402 # check for this first so it ends up on the link line before mpfr.
1403 AC_ARG_WITH(mpc,
1404 [AS_HELP_STRING([--with-mpc=PATH],
1405 [specify prefix directory for installed MPC package.
1406 Equivalent to --with-mpc-include=PATH/include
1407 plus --with-mpc-lib=PATH/lib])])
1408 AC_ARG_WITH(mpc-include,
1409 [AS_HELP_STRING([--with-mpc-include=PATH],
1410 [specify directory for installed MPC include files])])
1411 AC_ARG_WITH(mpc-lib,
1412 [AS_HELP_STRING([--with-mpc-lib=PATH],
1413 [specify directory for the installed MPC library])])
1415 if test "x$with_mpc" != x; then
1416 gmplibs="-L$with_mpc/lib $gmplibs"
1417 gmpinc="-I$with_mpc/include $gmpinc"
1418 fi
1419 if test "x$with_mpc_include" != x; then
1420 gmpinc="-I$with_mpc_include $gmpinc"
1421 fi
1422 if test "x$with_mpc_lib" != x; then
1423 gmplibs="-L$with_mpc_lib $gmplibs"
1424 fi
1425 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1426 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1427 gmpinc='-I$$s/mpc/src '"$gmpinc"
1428 # Do not test the mpc version. Assume that it is sufficient, since
1429 # it is in the source tree, and the library has not been built yet
1430 # but it would be included on the link line in the version check below
1431 # hence making the test fail.
1432 have_gmp=yes
1433 fi
1435 # Specify a location for mpfr
1436 # check for this first so it ends up on the link line before gmp.
1437 AC_ARG_WITH(mpfr-dir,
1438 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1439 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1440 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1442 AC_ARG_WITH(mpfr,
1443 [AS_HELP_STRING([--with-mpfr=PATH],
1444 [specify prefix directory for installed MPFR package.
1445 Equivalent to --with-mpfr-include=PATH/include
1446 plus --with-mpfr-lib=PATH/lib])])
1447 AC_ARG_WITH(mpfr-include,
1448 [AS_HELP_STRING([--with-mpfr-include=PATH],
1449 [specify directory for installed MPFR include files])])
1450 AC_ARG_WITH(mpfr-lib,
1451 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1452 [specify directory for the installed MPFR library])])
1454 if test "x$with_mpfr" != x; then
1455 gmplibs="-L$with_mpfr/lib $gmplibs"
1456 gmpinc="-I$with_mpfr/include $gmpinc"
1457 fi
1458 if test "x$with_mpfr_include" != x; then
1459 gmpinc="-I$with_mpfr_include $gmpinc"
1460 fi
1461 if test "x$with_mpfr_lib" != x; then
1462 gmplibs="-L$with_mpfr_lib $gmplibs"
1463 fi
1464 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1465 # MPFR v3.1.0 moved the sources into a src sub-directory.
1466 if ! test -d ${srcdir}/mpfr/src; then
1467 AC_MSG_ERROR([dnl
1468 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1469 fi
1470 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1471 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1472 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1473 # Do not test the mpfr version. Assume that it is sufficient, since
1474 # it is in the source tree, and the library has not been built yet
1475 # but it would be included on the link line in the version check below
1476 # hence making the test fail.
1477 have_gmp=yes
1478 fi
1480 # Specify a location for gmp
1481 AC_ARG_WITH(gmp-dir,
1482 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1483 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1484 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1486 AC_ARG_WITH(gmp,
1487 [AS_HELP_STRING([--with-gmp=PATH],
1488 [specify prefix directory for the installed GMP package.
1489 Equivalent to --with-gmp-include=PATH/include
1490 plus --with-gmp-lib=PATH/lib])])
1491 AC_ARG_WITH(gmp-include,
1492 [AS_HELP_STRING([--with-gmp-include=PATH],
1493 [specify directory for installed GMP include files])])
1494 AC_ARG_WITH(gmp-lib,
1495 [AS_HELP_STRING([--with-gmp-lib=PATH],
1496 [specify directory for the installed GMP library])])
1499 if test "x$with_gmp" != x; then
1500 gmplibs="-L$with_gmp/lib $gmplibs"
1501 gmpinc="-I$with_gmp/include $gmpinc"
1502 fi
1503 if test "x$with_gmp_include" != x; then
1504 gmpinc="-I$with_gmp_include $gmpinc"
1505 fi
1506 if test "x$with_gmp_lib" != x; then
1507 gmplibs="-L$with_gmp_lib $gmplibs"
1508 fi
1509 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1510 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1511 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1512 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1513 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1514 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1515 # Do not test the gmp version. Assume that it is sufficient, since
1516 # it is in the source tree, and the library has not been built yet
1517 # but it would be included on the link line in the version check below
1518 # hence making the test fail.
1519 have_gmp=yes
1520 fi
1522 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1523 have_gmp=yes
1524 saved_CFLAGS="$CFLAGS"
1525 CFLAGS="$CFLAGS $gmpinc"
1526 # Check for the recommended and required versions of GMP.
1527 AC_MSG_CHECKING([for the correct version of gmp.h])
1528 AC_TRY_COMPILE([#include "gmp.h"],[
1529 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1530 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1531 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1532 choke me
1533 #endif
1534 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1535 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1536 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1537 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1538 choke me
1539 #endif
1540 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1541 [AC_MSG_RESULT([no]); have_gmp=no])
1543 # If we have GMP, check the MPFR version.
1544 if test x"$have_gmp" = xyes; then
1545 # Check for the recommended and required versions of MPFR.
1546 AC_MSG_CHECKING([for the correct version of mpfr.h])
1547 AC_TRY_COMPILE([#include <gmp.h>
1548 #include <mpfr.h>],[
1549 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1550 choke me
1551 #endif
1552 ], [AC_TRY_COMPILE([#include <gmp.h>
1553 #include <mpfr.h>],[
1554 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1555 choke me
1556 #endif
1557 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1558 [AC_MSG_RESULT([no]); have_gmp=no])
1559 fi
1561 # Check for the MPC header version.
1562 if test x"$have_gmp" = xyes ; then
1563 # Check for the recommended and required versions of MPC.
1564 AC_MSG_CHECKING([for the correct version of mpc.h])
1565 AC_TRY_COMPILE([#include <mpc.h>],[
1566 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1567 choke me
1568 #endif
1569 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1570 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1571 choke me
1572 #endif
1573 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1574 [AC_MSG_RESULT([no]); have_gmp=no])
1575 fi
1577 # Now check the MPFR library.
1578 if test x"$have_gmp" = xyes; then
1579 saved_LIBS="$LIBS"
1580 LIBS="$LIBS $gmplibs"
1581 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1582 AC_TRY_LINK([#include <mpc.h>],[
1583 mpfr_t n;
1584 mpfr_t x;
1585 mpc_t c;
1586 int t;
1587 mpfr_init (n);
1588 mpfr_init (x);
1589 mpfr_atan2 (n, n, x, GMP_RNDN);
1590 mpfr_erfc (n, x, GMP_RNDN);
1591 mpfr_subnormalize (x, t, GMP_RNDN);
1592 mpfr_clear(n);
1593 mpfr_clear(x);
1594 mpc_init2 (c, 53);
1595 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1596 mpc_cosh (c, c, MPC_RNDNN);
1597 mpc_pow (c, c, c, MPC_RNDNN);
1598 mpc_acosh (c, c, MPC_RNDNN);
1599 mpc_clear (c);
1600 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1601 LIBS="$saved_LIBS"
1602 fi
1604 CFLAGS="$saved_CFLAGS"
1606 # The library versions listed in the error message below should match
1607 # the HARD-minimums enforced above.
1608 if test x$have_gmp != xyes; then
1609 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1610 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1611 their locations. Source code for these libraries can be found at
1612 their respective hosting sites as well as at
1613 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1614 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1615 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1616 make sure that you have installed both the libraries and the header
1617 files. They may be located in separate packages.])
1618 fi
1619 fi
1621 # Flags needed for both GMP, MPFR and/or MPC.
1622 AC_SUBST(gmplibs)
1623 AC_SUBST(gmpinc)
1624 AC_SUBST(extra_mpfr_configure_flags)
1625 AC_SUBST(extra_mpc_gmp_configure_flags)
1626 AC_SUBST(extra_mpc_mpfr_configure_flags)
1627 AC_SUBST(extra_isl_gmp_configure_flags)
1629 # Libraries to use for stage1 or when not bootstrapping.
1630 AC_ARG_WITH(stage1-libs,
1631 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1632 [if test "$withval" = "no" -o "$withval" = "yes"; then
1633 stage1_libs=
1634 else
1635 stage1_libs=$withval
1636 fi],
1637 [stage1_libs=])
1638 AC_SUBST(stage1_libs)
1640 # Linker flags to use for stage1 or when not bootstrapping.
1641 AC_ARG_WITH(stage1-ldflags,
1642 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1643 [if test "$withval" = "no" -o "$withval" = "yes"; then
1644 stage1_ldflags=
1645 else
1646 stage1_ldflags=$withval
1647 fi],
1648 [stage1_ldflags=
1649 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1650 # if supported. But if the user explicitly specified the libraries to use,
1651 # trust that they are doing what they want.
1652 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1653 stage1_ldflags="-static-libstdc++ -static-libgcc"
1654 fi])
1655 AC_SUBST(stage1_ldflags)
1657 # Libraries to use for stage2 and later builds.
1658 AC_ARG_WITH(boot-libs,
1659 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1660 [if test "$withval" = "no" -o "$withval" = "yes"; then
1661 poststage1_libs=
1662 else
1663 poststage1_libs=$withval
1664 fi],
1665 [poststage1_libs=])
1666 AC_SUBST(poststage1_libs)
1668 # Linker flags to use for stage2 and later builds.
1669 AC_ARG_WITH(boot-ldflags,
1670 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1671 [linker flags for stage2 and later])],
1672 [if test "$withval" = "no" -o "$withval" = "yes"; then
1673 poststage1_ldflags=
1674 else
1675 poststage1_ldflags=$withval
1676 fi],
1677 [poststage1_ldflags=
1678 # In stages 2 and 3, default to linking libstdc++ and libgcc
1679 # statically. But if the user explicitly specified the libraries to
1680 # use, trust that they are doing what they want.
1681 if test "$poststage1_libs" = ""; then
1682 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1683 fi])
1684 AC_SUBST(poststage1_ldflags)
1686 # GCC GRAPHITE dependency isl.
1687 # Basic setup is inlined here, actual checks are in config/isl.m4
1689 AC_ARG_WITH(isl,
1690 [AS_HELP_STRING(
1691 [--with-isl=PATH],
1692 [Specify prefix directory for the installed isl package.
1693 Equivalent to --with-isl-include=PATH/include
1694 plus --with-isl-lib=PATH/lib])])
1696 # Treat --without-isl as a request to disable
1697 # GRAPHITE support and skip all following checks.
1698 if test "x$with_isl" != "xno"; then
1699 # Check for isl
1700 dnl Provide configure switches and initialize islinc & isllibs
1701 dnl with user input.
1702 ISL_INIT_FLAGS
1703 dnl The versions of isl that work for Graphite
1704 ISL_CHECK_VERSION()
1705 dnl Only execute fail-action, if isl has been requested.
1706 ISL_IF_FAILED([
1707 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1708 fi
1710 # If the isl check failed, disable builds of in-tree variant of isl
1711 if test "x$with_isl" = xno ||
1712 test "x$gcc_cv_isl" = xno; then
1713 noconfigdirs="$noconfigdirs isl"
1714 islinc=
1715 fi
1717 AC_SUBST(isllibs)
1718 AC_SUBST(islinc)
1720 # Check for LTO support.
1721 AC_ARG_ENABLE(lto,
1722 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1723 enable_lto=$enableval,
1724 enable_lto=yes; default_enable_lto=yes)
1726 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1727 build_lto_plugin=yes
1728 ],[if test x"$default_enable_lto" = x"yes" ; then
1729 case $target in
1730 *-apple-darwin9* | *-cygwin* | *-mingw* | *djgpp*) ;;
1731 # On other non-ELF platforms, LTO has yet to be validated.
1732 *) enable_lto=no ;;
1733 esac
1734 else
1735 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1736 # It would also be nice to check the binutils support, but we don't
1737 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1738 # warn during gcc/ subconfigure; unless you're bootstrapping with
1739 # -flto it won't be needed until after installation anyway.
1740 case $target in
1741 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1742 *) if test x"$enable_lto" = x"yes"; then
1743 AC_MSG_ERROR([LTO support is not enabled for this target.])
1744 fi
1745 ;;
1746 esac
1747 fi
1748 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1749 # Build it unless LTO was explicitly disabled.
1750 case $target in
1751 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1752 *) ;;
1753 esac
1754 ])
1756 AC_ARG_ENABLE(linker-plugin-configure-flags,
1757 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1758 [additional flags for configuring linker plugins @<:@none@:>@])],
1759 extra_linker_plugin_configure_flags=$enableval,
1760 extra_linker_plugin_configure_flags=)
1761 AC_SUBST(extra_linker_plugin_configure_flags)
1762 AC_ARG_ENABLE(linker-plugin-flags,
1763 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1764 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1765 extra_linker_plugin_flags=$enableval,
1766 extra_linker_plugin_flags=)
1767 AC_SUBST(extra_linker_plugin_flags)
1770 # By default, C and C++ are the only stage 1 languages.
1771 stage1_languages=,c,
1773 # Target libraries that we bootstrap.
1774 bootstrap_target_libs=,target-libgcc,
1776 # Figure out what language subdirectories are present.
1777 # Look if the user specified --enable-languages="..."; if not, use
1778 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1779 # go away some day.
1780 # NB: embedded tabs in this IF block -- do not untabify
1781 if test -d ${srcdir}/gcc; then
1782 if test x"${enable_languages+set}" != xset; then
1783 if test x"${LANGUAGES+set}" = xset; then
1784 enable_languages="${LANGUAGES}"
1785 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1786 else
1787 enable_languages=all
1788 fi
1789 else
1790 if test x"${enable_languages}" = x ||
1791 test x"${enable_languages}" = xyes;
1792 then
1793 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1794 exit 1
1795 fi
1796 fi
1797 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1799 # 'f95' is the old name for the 'fortran' language. We issue a warning
1800 # and make the substitution.
1801 case ,${enable_languages}, in
1802 *,f95,*)
1803 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1804 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1805 ;;
1806 esac
1808 # If bootstrapping, C++ must be enabled.
1809 case ",$enable_languages,:$enable_bootstrap" in
1810 *,c++,*:*) ;;
1811 *:yes)
1812 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1813 enable_languages="${enable_languages},c++"
1814 else
1815 AC_MSG_ERROR([bootstrapping requires c++ sources])
1816 fi
1817 ;;
1818 esac
1820 # First scan to see if an enabled language requires some other language.
1821 # We assume that a given config-lang.in will list all the language
1822 # front ends it requires, even if some are required indirectly.
1823 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1824 case ${lang_frag} in
1825 ..) ;;
1826 # The odd quoting in the next line works around
1827 # an apparent bug in bash 1.12 on linux.
1828 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1829 *)
1830 # From the config-lang.in, get $language, $lang_requires, and
1831 # $lang_requires_boot_languages.
1832 language=
1833 lang_requires=
1834 lang_requires_boot_languages=
1835 . ${lang_frag}
1836 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1837 case ,${enable_languages}, in
1838 *,$other,*) ;;
1839 *,all,*) ;;
1840 *,$language,*)
1841 echo " \`$other' language required by \`$language'; enabling" 1>&2
1842 enable_languages="${enable_languages},${other}"
1843 ;;
1844 esac
1845 done
1846 for other in ${lang_requires_boot_languages} ; do
1847 if test "$other" != "c"; then
1848 case ,${enable_stage1_languages}, in
1849 *,$other,*) ;;
1850 *,all,*) ;;
1851 *)
1852 case ,${enable_languages}, in
1853 *,$language,*)
1854 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1855 enable_stage1_languages="$enable_stage1_languages,${other}"
1856 ;;
1857 esac
1858 ;;
1859 esac
1860 fi
1861 done
1862 ;;
1863 esac
1864 done
1866 new_enable_languages=,c,
1868 # If LTO is enabled, add the LTO front end.
1869 if test "$enable_lto" = "yes" ; then
1870 case ,${enable_languages}, in
1871 *,lto,*) ;;
1872 *) enable_languages="${enable_languages},lto" ;;
1873 esac
1874 if test "${build_lto_plugin}" = "yes" ; then
1875 configdirs="$configdirs lto-plugin"
1876 fi
1877 fi
1879 # If we're building an offloading compiler, add the LTO front end.
1880 if test x"$enable_as_accelerator_for" != x ; then
1881 case ,${enable_languages}, in
1882 *,lto,*) ;;
1883 *) enable_languages="${enable_languages},lto" ;;
1884 esac
1885 fi
1887 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1888 potential_languages=,c,
1890 enabled_target_libs=
1891 disabled_target_libs=
1893 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1894 case ${lang_frag} in
1895 ..) ;;
1896 # The odd quoting in the next line works around
1897 # an apparent bug in bash 1.12 on linux.
1898 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1899 *)
1900 # From the config-lang.in, get $language, $target_libs,
1901 # $lang_dirs, $boot_language, and $build_by_default
1902 language=
1903 target_libs=
1904 lang_dirs=
1905 subdir_requires=
1906 boot_language=no
1907 build_by_default=yes
1908 . ${lang_frag}
1909 if test x${language} = x; then
1910 echo "${lang_frag} doesn't set \$language." 1>&2
1911 exit 1
1912 fi
1914 if test "$language" = "c++"; then
1915 boot_language=yes
1916 fi
1918 add_this_lang=no
1919 case ,${enable_languages}, in
1920 *,${language},*)
1921 # Language was explicitly selected; include it
1922 # unless it is C, which is enabled by default.
1923 if test "$language" != "c"; then
1924 add_this_lang=yes
1925 fi
1926 ;;
1927 *,all,*)
1928 # 'all' was selected, select it if it is a default language
1929 if test "$language" != "c"; then
1930 add_this_lang=${build_by_default}
1931 fi
1932 ;;
1933 esac
1935 # Disable languages that need other directories if these aren't available.
1936 for i in $subdir_requires; do
1937 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1938 case ,${enable_languages}, in
1939 *,${language},*)
1940 # Specifically requested language; tell them.
1941 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1942 ;;
1943 *)
1944 # Silently disable.
1945 add_this_lang=unsupported
1946 ;;
1947 esac
1948 done
1950 # Disable Ada if no preexisting GNAT is available.
1951 case ,${enable_languages},:${language}:${have_gnat} in
1952 *,${language},*:ada:no)
1953 # Specifically requested language; tell them.
1954 AC_MSG_ERROR([GNAT is required to build $language])
1955 ;;
1956 *:ada:no)
1957 # Silently disable.
1958 add_this_lang=unsupported
1959 ;;
1960 esac
1962 # Disable a language that is unsupported by the target.
1963 case " $unsupported_languages " in
1964 *" $language "*)
1965 add_this_lang=unsupported
1966 ;;
1967 esac
1969 case $add_this_lang in
1970 unsupported)
1971 # Remove language-dependent dirs.
1972 disabled_target_libs="$disabled_target_libs $target_libs"
1973 noconfigdirs="$noconfigdirs $lang_dirs"
1974 ;;
1975 no)
1976 # Remove language-dependent dirs; still show language as supported.
1977 disabled_target_libs="$disabled_target_libs $target_libs"
1978 noconfigdirs="$noconfigdirs $lang_dirs"
1979 potential_languages="${potential_languages}${language},"
1980 ;;
1981 yes)
1982 new_enable_languages="${new_enable_languages}${language},"
1983 potential_languages="${potential_languages}${language},"
1984 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1985 enabled_target_libs="$enabled_target_libs $target_libs"
1986 case "${boot_language}:,$enable_stage1_languages," in
1987 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
1988 # Add to (comma-separated) list of stage 1 languages.
1989 case ",$stage1_languages," in
1990 *,$language,* | ,yes, | ,all,) ;;
1991 *) stage1_languages="${stage1_languages}${language}," ;;
1992 esac
1993 # We need to bootstrap any supporting libraries.
1994 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
1995 ;;
1996 esac
1997 ;;
1998 esac
1999 ;;
2000 esac
2001 done
2003 # Add target libraries which are only needed for disabled languages
2004 # to noconfigdirs.
2005 if test -n "$disabled_target_libs"; then
2006 for dir in $disabled_target_libs; do
2007 case " $enabled_target_libs " in
2008 *" ${dir} "*) ;;
2009 *) noconfigdirs="$noconfigdirs $dir" ;;
2010 esac
2011 done
2012 fi
2014 AC_ARG_ENABLE(stage1-languages,
2015 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2016 [choose additional languages to build during
2017 stage1. Mostly useful for compiler development])],
2018 [case ,${enable_stage1_languages}, in
2019 ,no,|,,)
2020 # Set it to something that will have no effect in the loop below
2021 enable_stage1_languages=c ;;
2022 ,yes,)
2023 enable_stage1_languages=`echo $new_enable_languages | \
2024 sed -e "s/^,//" -e "s/,$//" ` ;;
2025 *,all,*)
2026 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2027 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2028 esac
2030 # Add "good" languages from enable_stage1_languages to stage1_languages,
2031 # while "bad" languages go in missing_languages. Leave no duplicates.
2032 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2033 case $potential_languages in
2034 *,$i,*)
2035 case $stage1_languages in
2036 *,$i,*) ;;
2037 *) stage1_languages="$stage1_languages$i," ;;
2038 esac ;;
2039 *)
2040 case $missing_languages in
2041 *,$i,*) ;;
2042 *) missing_languages="$missing_languages$i," ;;
2043 esac ;;
2044 esac
2045 done])
2047 # Remove leading/trailing commas that were added for simplicity
2048 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2049 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2050 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2051 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2053 if test "x$missing_languages" != x; then
2054 AC_MSG_ERROR([
2055 The following requested languages could not be built: ${missing_languages}
2056 Supported languages are: ${potential_languages}])
2057 fi
2058 if test "x$new_enable_languages" != "x$enable_languages"; then
2059 echo The following languages will be built: ${new_enable_languages}
2060 enable_languages="$new_enable_languages"
2061 fi
2063 AC_SUBST(stage1_languages)
2064 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2065 fi
2067 # Handle --disable-<component> generically.
2068 for dir in $configdirs $build_configdirs $target_configdirs ; do
2069 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2070 varname=`echo $dirname | sed -e s/+/_/g`
2071 if eval test x\${enable_${varname}} "=" xno ; then
2072 noconfigdirs="$noconfigdirs $dir"
2073 fi
2074 done
2076 # Check for Boehm's garbage collector
2077 AC_ARG_ENABLE(objc-gc,
2078 [AS_HELP_STRING([--enable-objc-gc],
2079 [enable use of Boehm's garbage collector with the
2080 GNU Objective-C runtime])])
2081 AC_ARG_WITH([target-bdw-gc],
2082 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2083 [specify prefix directory for installed bdw-gc package.
2084 Equivalent to --with-target-bdw-gc-include=PATH/include
2085 plus --with-target-bdw-gc-lib=PATH/lib])])
2086 AC_ARG_WITH([target-bdw-gc-include],
2087 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2088 [specify directories for installed bdw-gc include files])])
2089 AC_ARG_WITH([target-bdw-gc-lib],
2090 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2091 [specify directories for installed bdw-gc library])])
2093 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2094 AC_MSG_CHECKING([for bdw garbage collector])
2095 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2096 dnl no bdw-gw options, assume default locations
2097 AC_MSG_RESULT([using bdw-gc in default locations])
2098 else
2099 dnl bdw-gw options, first error checking, complete checking in libobjc
2100 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2101 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2102 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2103 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2104 else
2105 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2106 fi
2107 fi
2108 esac
2110 # Disable libcilkrts, libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2111 case ,${enable_languages}, in
2112 *,c++,*)
2113 # Disable libcilkrts, libitm, libsanitizer if we're not building libstdc++
2114 case "${noconfigdirs}" in
2115 *target-libstdc++-v3*)
2116 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer"
2117 ;;
2118 *) ;;
2119 esac
2120 ;;
2121 *)
2122 noconfigdirs="$noconfigdirs target-libcilkrts target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2123 ;;
2124 esac
2126 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2127 # $build_configdirs and $target_configdirs.
2128 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2130 notsupp=""
2131 for dir in . $skipdirs $noconfigdirs ; do
2132 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2133 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2134 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2135 if test -r $srcdir/$dirname/configure ; then
2136 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2137 true
2138 else
2139 notsupp="$notsupp $dir"
2140 fi
2141 fi
2142 fi
2143 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2144 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2145 if test -r $srcdir/$dirname/configure ; then
2146 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2147 true
2148 else
2149 notsupp="$notsupp $dir"
2150 fi
2151 fi
2152 fi
2153 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2154 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2155 if test -r $srcdir/$dirname/configure ; then
2156 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2157 true
2158 else
2159 notsupp="$notsupp $dir"
2160 fi
2161 fi
2162 fi
2163 done
2165 # Quietly strip out all directories which aren't configurable in this tree.
2166 # This relies on all configurable subdirectories being autoconfiscated, which
2167 # is now the case.
2168 build_configdirs_all="$build_configdirs"
2169 build_configdirs=
2170 for i in ${build_configdirs_all} ; do
2171 j=`echo $i | sed -e s/build-//g`
2172 if test -f ${srcdir}/$j/configure ; then
2173 build_configdirs="${build_configdirs} $i"
2174 fi
2175 done
2177 configdirs_all="$configdirs"
2178 configdirs=
2179 for i in ${configdirs_all} ; do
2180 if test -f ${srcdir}/$i/configure ; then
2181 configdirs="${configdirs} $i"
2182 fi
2183 done
2185 target_configdirs_all="$target_configdirs"
2186 target_configdirs=
2187 for i in ${target_configdirs_all} ; do
2188 j=`echo $i | sed -e s/target-//g`
2189 if test -f ${srcdir}/$j/configure ; then
2190 target_configdirs="${target_configdirs} $i"
2191 fi
2192 done
2194 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2195 # so we have to add it after the preceding checks.
2196 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2197 then
2198 case " $configdirs " in
2199 *" libiberty "*)
2200 # If we can build libiberty, we can also build libiberty-linker-plugin.
2201 configdirs="$configdirs libiberty-linker-plugin"
2202 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2203 --with-libiberty=../libiberty-linker-plugin";;
2204 *)
2205 AC_MSG_ERROR([libiberty missing]);;
2206 esac
2207 fi
2209 # Sometimes we have special requirements for the host libiberty.
2210 extra_host_libiberty_configure_flags=
2211 extra_host_zlib_configure_flags=
2212 case " $configdirs " in
2213 *" lto-plugin "* | *" libcc1 "*)
2214 # When these are to be built as shared libraries, the same applies to
2215 # libiberty.
2216 extra_host_libiberty_configure_flags=--enable-shared
2217 ;;
2218 *" bfd "*)
2219 # When bfd is to be built as a shared library, the same applies to
2220 # zlib.
2221 if test "$enable_shared" = "yes"; then
2222 extra_host_zlib_configure_flags=--enable-host-shared
2223 fi
2224 ;;
2225 esac
2226 AC_SUBST(extra_host_libiberty_configure_flags)
2227 AC_SUBST(extra_host_zlib_configure_flags)
2229 # Produce a warning message for the subdirs we can't configure.
2230 # This isn't especially interesting in the Cygnus tree, but in the individual
2231 # FSF releases, it's important to let people know when their machine isn't
2232 # supported by the one or two programs in a package.
2234 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2235 # If $appdirs is non-empty, at least one of those directories must still
2236 # be configured, or we error out. (E.g., if the gas release supports a
2237 # specified target in some subdirs but not the gas subdir, we shouldn't
2238 # pretend that all is well.)
2239 if test -n "$appdirs" ; then
2240 for dir in $appdirs ; do
2241 if test -r $dir/Makefile.in ; then
2242 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2243 appdirs=""
2244 break
2245 fi
2246 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2247 appdirs=""
2248 break
2249 fi
2250 fi
2251 done
2252 if test -n "$appdirs" ; then
2253 echo "*** This configuration is not supported by this package." 1>&2
2254 exit 1
2255 fi
2256 fi
2257 # Okay, some application will build, or we don't care to check. Still
2258 # notify of subdirs not getting built.
2259 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2260 echo " ${notsupp}" 1>&2
2261 echo " (Any other directories should still work fine.)" 1>&2
2262 fi
2264 case "$host" in
2265 *msdosdjgpp*)
2266 enable_gdbtk=no ;;
2267 esac
2269 # To find our prefix, in gcc_cv_tool_prefix.
2270 ACX_TOOL_DIRS
2272 copy_dirs=
2274 AC_ARG_WITH([build-sysroot],
2275 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2276 [use sysroot as the system root during the build])],
2277 [if test x"$withval" != x ; then
2278 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2279 fi],
2280 [SYSROOT_CFLAGS_FOR_TARGET=])
2281 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2283 AC_ARG_WITH([debug-prefix-map],
2284 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2285 [map A to B, C to D ... in debug information])],
2286 [if test x"$withval" != x; then
2287 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2288 for debug_map in $withval; do
2289 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2290 done
2291 fi],
2292 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2293 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2295 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2296 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2297 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2298 # We want to ensure that TARGET libraries (which we know are built with
2299 # gcc) are built with "-O2 -g", so include those options when setting
2300 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2301 if test "x$CFLAGS_FOR_TARGET" = x; then
2302 if test "x${is_cross_compiler}" = xyes; then
2303 CFLAGS_FOR_TARGET="-g -O2"
2304 else
2305 CFLAGS_FOR_TARGET=$CFLAGS
2306 case " $CFLAGS " in
2307 *" -O2 "*) ;;
2308 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2309 esac
2310 case " $CFLAGS " in
2311 *" -g "* | *" -g3 "*) ;;
2312 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2313 esac
2314 fi
2315 fi
2316 AC_SUBST(CFLAGS_FOR_TARGET)
2318 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2319 if test "x${is_cross_compiler}" = xyes; then
2320 CXXFLAGS_FOR_TARGET="-g -O2"
2321 else
2322 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2323 case " $CXXFLAGS " in
2324 *" -O2 "*) ;;
2325 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2326 esac
2327 case " $CXXFLAGS " in
2328 *" -g "* | *" -g3 "*) ;;
2329 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2330 esac
2331 fi
2332 fi
2333 AC_SUBST(CXXFLAGS_FOR_TARGET)
2335 AC_SUBST(LDFLAGS_FOR_TARGET)
2337 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2338 # the named directory are copied to $(tooldir)/sys-include.
2339 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2340 if test x${is_cross_compiler} = xno ; then
2341 echo 1>&2 '***' --with-headers is only supported when cross compiling
2342 exit 1
2343 fi
2344 if test x"${with_headers}" != xyes ; then
2345 x=${gcc_cv_tool_prefix}
2346 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2347 fi
2348 fi
2350 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2351 # the name directories are copied to $(tooldir)/lib. Multiple directories
2352 # are permitted.
2353 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2354 if test x${is_cross_compiler} = xno ; then
2355 echo 1>&2 '***' --with-libs is only supported when cross compiling
2356 exit 1
2357 fi
2358 if test x"${with_libs}" != xyes ; then
2359 # Copy the libraries in reverse order, so that files in the first named
2360 # library override files in subsequent libraries.
2361 x=${gcc_cv_tool_prefix}
2362 for l in ${with_libs}; do
2363 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2364 done
2365 fi
2366 fi
2368 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2369 #
2370 # This is done by determining whether or not the appropriate directory
2371 # is available, and by checking whether or not specific configurations
2372 # have requested that this magic not happen.
2373 #
2374 # The command line options always override the explicit settings in
2375 # configure.ac, and the settings in configure.ac override this magic.
2376 #
2377 # If the default for a toolchain is to use GNU as and ld, and you don't
2378 # want to do that, then you should use the --without-gnu-as and
2379 # --without-gnu-ld options for the configure script. Similarly, if
2380 # the default is to use the included zlib and you don't want to do that,
2381 # you should use the --with-system-zlib option for the configure script.
2383 if test x${use_gnu_as} = x &&
2384 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2385 with_gnu_as=yes
2386 extra_host_args="$extra_host_args --with-gnu-as"
2387 fi
2389 if test x${use_gnu_ld} = x &&
2390 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2391 with_gnu_ld=yes
2392 extra_host_args="$extra_host_args --with-gnu-ld"
2393 fi
2395 if test x${use_included_zlib} = x &&
2396 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2397 :
2398 else
2399 with_system_zlib=yes
2400 extra_host_args="$extra_host_args --with-system-zlib"
2401 fi
2403 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2404 # can detect this case.
2406 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2407 with_newlib=yes
2408 extra_host_args="$extra_host_args --with-newlib"
2409 fi
2411 # Handle ${copy_dirs}
2412 set fnord ${copy_dirs}
2413 shift
2414 while test $# != 0 ; do
2415 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2416 :
2417 else
2418 echo Copying $1 to $2
2420 # Use the install script to create the directory and all required
2421 # parent directories.
2422 if test -d $2 ; then
2423 :
2424 else
2425 echo >config.temp
2426 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2427 fi
2429 # Copy the directory, assuming we have tar.
2430 # FIXME: Should we use B in the second tar? Not all systems support it.
2431 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2433 # It is the responsibility of the user to correctly adjust all
2434 # symlinks. If somebody can figure out how to handle them correctly
2435 # here, feel free to add the code.
2437 echo $1 > $2/COPIED
2438 fi
2439 shift; shift
2440 done
2442 # Determine a target-dependent exec_prefix that the installed
2443 # gcc will search in. Keep this list sorted by triplet, with
2444 # the *-*-osname triplets last.
2445 md_exec_prefix=
2446 case "${target}" in
2447 i[[34567]]86-pc-msdosdjgpp*)
2448 md_exec_prefix=/dev/env/DJDIR/bin
2449 ;;
2450 *-*-hpux* | \
2451 *-*-nto-qnx* | \
2452 *-*-solaris2*)
2453 md_exec_prefix=/usr/ccs/bin
2454 ;;
2455 esac
2457 extra_arflags_for_target=
2458 extra_nmflags_for_target=
2459 extra_ranlibflags_for_target=
2460 target_makefile_frag=/dev/null
2461 case "${target}" in
2462 spu-*-*)
2463 target_makefile_frag="config/mt-spu"
2464 ;;
2465 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2466 target_makefile_frag="config/mt-sde"
2467 ;;
2468 mipsisa*-*-elfoabi*)
2469 target_makefile_frag="config/mt-mips-elfoabi"
2470 ;;
2471 mips*-*-*linux* | mips*-*-gnu*)
2472 target_makefile_frag="config/mt-mips-gnu"
2473 ;;
2474 nios2-*-elf*)
2475 target_makefile_frag="config/mt-nios2-elf"
2476 ;;
2477 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2478 target_makefile_frag="config/mt-gnu"
2479 ;;
2480 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2481 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2482 # commands to handle both 32-bit and 64-bit objects. These flags are
2483 # harmless if we're using GNU nm or ar.
2484 extra_arflags_for_target=" -X32_64"
2485 extra_nmflags_for_target=" -B -X32_64"
2486 ;;
2487 esac
2489 alphaieee_frag=/dev/null
2490 case $target in
2491 alpha*-*-*)
2492 # This just makes sure to use the -mieee option to build target libs.
2493 # This should probably be set individually by each library.
2494 alphaieee_frag="config/mt-alphaieee"
2495 ;;
2496 esac
2498 # If --enable-target-optspace always use -Os instead of -O2 to build
2499 # the target libraries, similarly if it is not specified, use -Os
2500 # on selected platforms.
2501 ospace_frag=/dev/null
2502 case "${enable_target_optspace}:${target}" in
2503 yes:*)
2504 ospace_frag="config/mt-ospace"
2505 ;;
2506 :d30v-*)
2507 ospace_frag="config/mt-d30v"
2508 ;;
2509 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2510 ospace_frag="config/mt-ospace"
2511 ;;
2512 no:* | :*)
2513 ;;
2514 *)
2515 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2516 ;;
2517 esac
2519 # Some systems (e.g., one of the i386-aix systems the gas testers are
2520 # using) don't handle "\$" correctly, so don't use it here.
2521 tooldir='${exec_prefix}'/${target_noncanonical}
2522 build_tooldir=${tooldir}
2524 # Create a .gdbinit file which runs the one in srcdir
2525 # and tells GDB to look there for source files.
2527 if test -r ${srcdir}/.gdbinit ; then
2528 case ${srcdir} in
2529 .) ;;
2530 *) cat > ./.gdbinit <<EOF
2531 # ${NO_EDIT}
2532 dir ${srcdir}
2533 dir .
2534 source ${srcdir}/.gdbinit
2535 EOF
2536 ;;
2537 esac
2538 fi
2540 # Make sure that the compiler is able to generate an executable. If it
2541 # can't, we are probably in trouble. We don't care whether we can run the
2542 # executable--we might be using a cross compiler--we only care whether it
2543 # can be created. At this point the main configure script has set CC.
2544 we_are_ok=no
2545 echo "int main () { return 0; }" > conftest.c
2546 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2547 if test $? = 0 ; then
2548 if test -s conftest || test -s conftest.exe ; then
2549 we_are_ok=yes
2550 fi
2551 fi
2552 case $we_are_ok in
2553 no)
2554 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2555 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2556 rm -f conftest*
2557 exit 1
2558 ;;
2559 esac
2560 rm -f conftest*
2562 # Decide which environment variable is used to find dynamic libraries.
2563 case "${host}" in
2564 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2565 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2566 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2567 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2568 esac
2570 # On systems where the dynamic library environment variable is PATH,
2571 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2572 # built executables to PATH.
2573 if test "$RPATH_ENVVAR" = PATH; then
2574 GCC_SHLIB_SUBDIR=/shlib
2575 else
2576 GCC_SHLIB_SUBDIR=
2577 fi
2579 # Adjust the toplevel makefile according to whether bootstrap was selected.
2580 case $enable_bootstrap in
2581 yes)
2582 bootstrap_suffix=bootstrap
2583 BUILD_CONFIG=bootstrap-debug
2584 ;;
2585 no)
2586 bootstrap_suffix=no-bootstrap
2587 BUILD_CONFIG=
2588 ;;
2589 esac
2591 AC_MSG_CHECKING(for default BUILD_CONFIG)
2593 AC_ARG_WITH([build-config],
2594 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2595 [use config/NAME.mk build configuration])],
2596 [case $with_build_config in
2597 yes) with_build_config= ;;
2598 no) with_build_config= BUILD_CONFIG= ;;
2599 esac])
2601 if test "x${with_build_config}" != x; then
2602 BUILD_CONFIG=$with_build_config
2603 else
2604 case $BUILD_CONFIG in
2605 bootstrap-debug)
2606 if echo "int f (void) { return 0; }" > conftest.c &&
2607 ${CC} -c conftest.c &&
2608 mv conftest.o conftest.o.g0 &&
2609 ${CC} -c -g conftest.c &&
2610 mv conftest.o conftest.o.g &&
2611 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2612 :
2613 else
2614 BUILD_CONFIG=
2615 fi
2616 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2617 ;;
2618 esac
2619 fi
2620 AC_MSG_RESULT($BUILD_CONFIG)
2621 AC_SUBST(BUILD_CONFIG)
2623 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2624 AC_MSG_CHECKING([for --enable-vtable-verify])
2625 AC_ARG_ENABLE(vtable-verify,
2626 [AS_HELP_STRING([--enable-vtable-verify],
2627 [Enable vtable verification feature])],
2628 [case "$enableval" in
2629 yes) enable_vtable_verify=yes ;;
2630 no) enable_vtable_verify=no ;;
2631 *) enable_vtable_verify=no;;
2632 esac],
2633 [enable_vtable_verify=no])
2634 AC_MSG_RESULT($enable_vtable_verify)
2636 # Record target_configdirs and the configure arguments for target and
2637 # build configuration in Makefile.
2638 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2639 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2640 bootstrap_fixincludes=no
2642 # If we are building libgomp, bootstrap it.
2643 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2644 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2645 fi
2647 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2648 # or bootstrap-ubsan, bootstrap it.
2649 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2650 case "$BUILD_CONFIG" in
2651 *bootstrap-asan* | *bootstrap-ubsan* )
2652 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2653 bootstrap_fixincludes=yes
2654 ;;
2655 esac
2656 fi
2658 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2659 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2660 test "$enable_vtable_verify" != no; then
2661 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2662 fi
2664 # If we are building libmpx and $BUILD_CONFIG contains bootstrap-mpx,
2665 # bootstrap it.
2666 if echo " ${target_configdirs} " | grep " libmpx " > /dev/null 2>&1; then
2667 case "$BUILD_CONFIG" in
2668 *bootstrap-mpx* )
2669 bootstrap_target_libs=${bootstrap_target_libs}target-libmpx,
2670 ;;
2671 esac
2672 fi
2674 # Determine whether gdb needs tk/tcl or not.
2675 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2676 # and in that case we want gdb to be built without tk. Ugh!
2677 # In fact I believe gdb is the *only* package directly dependent on tk,
2678 # so we should be able to put the 'maybe's in unconditionally and
2679 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2680 # 100% sure that that's safe though.
2682 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2683 case "$enable_gdbtk" in
2684 no)
2685 GDB_TK="" ;;
2686 yes)
2687 GDB_TK="${gdb_tk}" ;;
2688 *)
2689 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2690 # distro. Eventually someone will fix this and move Insight, nee
2691 # gdbtk to a separate directory.
2692 if test -d ${srcdir}/gdb/gdbtk ; then
2693 GDB_TK="${gdb_tk}"
2694 else
2695 GDB_TK=""
2696 fi
2697 ;;
2698 esac
2699 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2700 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2702 # Strip out unwanted targets.
2704 # While at that, we remove Makefiles if we were started for recursive
2705 # configuration, so that the top-level Makefile reconfigures them,
2706 # like we used to do when configure itself was recursive.
2708 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2709 # but now we're fixing up the Makefile ourselves with the additional
2710 # commands passed to AC_CONFIG_FILES. Use separate variables
2711 # extrasub-{build,host,target} not because there is any reason to split
2712 # the substitutions up that way, but only to remain below the limit of
2713 # 99 commands in a script, for HP-UX sed.
2714 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2716 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2717 yes:yes:*\ gold\ *:*,c++,*) ;;
2718 yes:yes:*\ gold\ *:*)
2719 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2720 ;;
2721 esac
2723 extrasub_build=
2724 for module in ${build_configdirs} ; do
2725 if test -z "${no_recursion}" \
2726 && test -f ${build_subdir}/${module}/Makefile; then
2727 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2728 rm -f ${build_subdir}/${module}/Makefile
2729 fi
2730 extrasub_build="$extrasub_build
2731 /^@if build-$module\$/d
2732 /^@endif build-$module\$/d
2733 /^@if build-$module-$bootstrap_suffix\$/d
2734 /^@endif build-$module-$bootstrap_suffix\$/d"
2735 done
2736 extrasub_host=
2737 for module in ${configdirs} ; do
2738 if test -z "${no_recursion}"; then
2739 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2740 if test -f ${file}; then
2741 echo 1>&2 "*** removing ${file} to force reconfigure"
2742 rm -f ${file}
2743 fi
2744 done
2745 fi
2746 case ${module},${bootstrap_fixincludes} in
2747 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2748 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2749 esac
2750 extrasub_host="$extrasub_host
2751 /^@if $module\$/d
2752 /^@endif $module\$/d
2753 /^@if $module-$host_bootstrap_suffix\$/d
2754 /^@endif $module-$host_bootstrap_suffix\$/d"
2755 done
2756 extrasub_target=
2757 for module in ${target_configdirs} ; do
2758 if test -z "${no_recursion}" \
2759 && test -f ${target_subdir}/${module}/Makefile; then
2760 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2761 rm -f ${target_subdir}/${module}/Makefile
2762 fi
2764 # We only bootstrap target libraries listed in bootstrap_target_libs.
2765 case $bootstrap_target_libs in
2766 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2767 *) target_bootstrap_suffix=no-bootstrap ;;
2768 esac
2770 extrasub_target="$extrasub_target
2771 /^@if target-$module\$/d
2772 /^@endif target-$module\$/d
2773 /^@if target-$module-$target_bootstrap_suffix\$/d
2774 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2775 done
2777 # Do the final fixup along with target modules.
2778 extrasub_target="$extrasub_target
2779 /^@if /,/^@endif /d"
2781 # Create the serialization dependencies. This uses a temporary file.
2783 AC_ARG_ENABLE([serial-configure],
2784 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2785 [force sequential configuration of
2786 sub-packages for the host, target or build
2787 machine, or all sub-packages])])
2789 case ${enable_serial_configure} in
2790 yes)
2791 enable_serial_build_configure=yes
2792 enable_serial_host_configure=yes
2793 enable_serial_target_configure=yes
2794 ;;
2795 esac
2797 # These force 'configure's to be done one at a time, to avoid problems
2798 # with contention over a shared config.cache.
2799 rm -f serdep.tmp
2800 echo '# serdep.tmp' > serdep.tmp
2801 olditem=
2802 test "x${enable_serial_build_configure}" = xyes &&
2803 for item in ${build_configdirs} ; do
2804 case ${olditem} in
2805 "") ;;
2806 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2807 esac
2808 olditem=${item}
2809 done
2810 olditem=
2811 test "x${enable_serial_host_configure}" = xyes &&
2812 for item in ${configdirs} ; do
2813 case ${olditem} in
2814 "") ;;
2815 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2816 esac
2817 olditem=${item}
2818 done
2819 olditem=
2820 test "x${enable_serial_target_configure}" = xyes &&
2821 for item in ${target_configdirs} ; do
2822 case ${olditem} in
2823 "") ;;
2824 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2825 esac
2826 olditem=${item}
2827 done
2828 serialization_dependencies=serdep.tmp
2829 AC_SUBST_FILE(serialization_dependencies)
2831 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2832 # target, nonopt, and variable assignments. These are the ones we
2833 # might not want to pass down to subconfigures. The exception being
2834 # --cache-file=/dev/null, which is used to turn off the use of cache
2835 # files altogether, and which should be passed on to subconfigures.
2836 # Also strip program-prefix, program-suffix, and program-transform-name,
2837 # so that we can pass down a consistent program-transform-name.
2838 baseargs=
2839 tbaseargs=
2840 keep_next=no
2841 skip_next=no
2842 eval "set -- $ac_configure_args"
2843 for ac_arg
2844 do
2845 if test X"$skip_next" = X"yes"; then
2846 skip_next=no
2847 continue
2848 fi
2849 if test X"$keep_next" = X"yes"; then
2850 case $ac_arg in
2851 *\'*)
2852 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2853 esac
2854 baseargs="$baseargs '$ac_arg'"
2855 tbaseargs="$tbaseargs '$ac_arg'"
2856 keep_next=no
2857 continue
2858 fi
2860 # Handle separated arguments. Based on the logic generated by
2861 # autoconf 2.59.
2862 case $ac_arg in
2863 *=* | --config-cache | -C | -disable-* | --disable-* \
2864 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2865 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2866 | -with-* | --with-* | -without-* | --without-* | --x)
2867 separate_arg=no
2868 ;;
2869 -*)
2870 separate_arg=yes
2871 ;;
2872 *)
2873 separate_arg=no
2874 ;;
2875 esac
2877 skip_targ=no
2878 case $ac_arg in
2879 changequote(,)
2880 --with-* | --without-*)
2881 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2883 case $libopt in
2884 *[-_]include)
2885 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2886 ;;
2887 *[-_]lib)
2888 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2889 ;;
2890 *)
2891 lib=$libopt
2892 ;;
2893 esac
2894 changequote([,])
2896 case $lib in
2897 mpc | mpfr | gmp | isl)
2898 # If we're processing --with-$lib, --with-$lib-include or
2899 # --with-$lib-lib, for one of the libs above, and target is
2900 # different from host, don't pass the current argument to any
2901 # target library's configure.
2902 if test x$is_cross_compiler = xyes; then
2903 skip_targ=yes
2904 fi
2905 ;;
2906 esac
2907 ;;
2908 esac
2910 case "$ac_arg" in
2911 --cache-file=/dev/null | \
2912 -cache-file=/dev/null )
2913 # Handled here to avoid the test to skip args below.
2914 baseargs="$baseargs '$ac_arg'"
2915 tbaseargs="$tbaseargs '$ac_arg'"
2916 # Assert: $separate_arg should always be no.
2917 keep_next=$separate_arg
2918 ;;
2919 --no*)
2920 continue
2921 ;;
2922 --c* | \
2923 --sr* | \
2924 --ho* | \
2925 --bu* | \
2926 --t* | \
2927 --program-* | \
2928 -cache_file* | \
2929 -srcdir* | \
2930 -host* | \
2931 -build* | \
2932 -target* | \
2933 -program-prefix* | \
2934 -program-suffix* | \
2935 -program-transform-name* )
2936 skip_next=$separate_arg
2937 continue
2938 ;;
2939 -*)
2940 # An option. Add it.
2941 case $ac_arg in
2942 *\'*)
2943 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2944 esac
2945 baseargs="$baseargs '$ac_arg'"
2946 if test X"$skip_targ" = Xno; then
2947 tbaseargs="$tbaseargs '$ac_arg'"
2948 fi
2949 keep_next=$separate_arg
2950 ;;
2951 *)
2952 # Either a variable assignment, or a nonopt (triplet). Don't
2953 # pass it down; let the Makefile handle this.
2954 continue
2955 ;;
2956 esac
2957 done
2958 # Remove the initial space we just introduced and, as these will be
2959 # expanded by make, quote '$'.
2960 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2962 # Add in --program-transform-name, after --program-prefix and
2963 # --program-suffix have been applied to it. Autoconf has already
2964 # doubled dollar signs and backslashes in program_transform_name; we want
2965 # the backslashes un-doubled, and then the entire thing wrapped in single
2966 # quotes, because this will be expanded first by make and then by the shell.
2967 # Also, because we want to override the logic in subdir configure scripts to
2968 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2969 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2970 ${program_transform_name}
2971 EOF_SED
2972 gcc_transform_name=`cat conftestsed.out`
2973 rm -f conftestsed.out
2974 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2975 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
2976 if test "$silent" = yes; then
2977 baseargs="$baseargs --silent"
2978 tbaseargs="$tbaseargs --silent"
2979 fi
2980 baseargs="$baseargs --disable-option-checking"
2981 tbaseargs="$tbaseargs --disable-option-checking"
2983 # Record and document user additions to sub configure arguments.
2984 AC_ARG_VAR([build_configargs],
2985 [additional configure arguments for build directories])
2986 AC_ARG_VAR([host_configargs],
2987 [additional configure arguments for host directories])
2988 AC_ARG_VAR([target_configargs],
2989 [additional configure arguments for target directories])
2991 # For the build-side libraries, we just need to pretend we're native,
2992 # and not use the same cache file. Multilibs are neither needed nor
2993 # desired. We can't even use the same cache file for all build-side
2994 # libraries, as they're compiled differently; some with C, some with
2995 # C++ or with different feature-enabling options.
2996 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
2998 # For host modules, accept cache file option, or specification as blank.
2999 case "${cache_file}" in
3000 "") # empty
3001 cache_file_option="" ;;
3002 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3003 cache_file_option="--cache-file=${cache_file}" ;;
3004 *) # relative path
3005 cache_file_option="--cache-file=../${cache_file}" ;;
3006 esac
3008 # Host dirs don't like to share a cache file either, horribly enough.
3009 # This seems to be due to autoconf 2.5x stupidity.
3010 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3012 target_configargs="$target_configargs ${tbaseargs}"
3014 # Passing a --with-cross-host argument lets the target libraries know
3015 # whether they are being built with a cross-compiler or being built
3016 # native. However, it would be better to use other mechanisms to make the
3017 # sorts of decisions they want to make on this basis. Please consider
3018 # this option to be deprecated. FIXME.
3019 if test x${is_cross_compiler} = xyes ; then
3020 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3021 fi
3023 # Special user-friendly check for native x86_64-linux build, if
3024 # multilib is not explicitly enabled.
3025 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3026 x86_64-*linux*:yes:$build:$build:)
3027 # Make sure we have a development environment that handles 32-bit
3028 dev64=no
3029 echo "int main () { return 0; }" > conftest.c
3030 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3031 if test $? = 0 ; then
3032 if test -s conftest || test -s conftest.exe ; then
3033 dev64=yes
3034 fi
3035 fi
3036 rm -f conftest*
3037 if test x${dev64} != xyes ; then
3038 AC_MSG_ERROR([I suspect your system does not have 32-bit development libraries (libc and headers). If you have them, rerun configure with --enable-multilib. If you do not have them, and want to build a 64-bit-only compiler, rerun configure with --disable-multilib.])
3039 fi
3040 ;;
3041 esac
3043 # Default to --enable-multilib.
3044 if test x${enable_multilib} = x ; then
3045 target_configargs="--enable-multilib ${target_configargs}"
3046 fi
3048 # Pass --with-newlib if appropriate. Note that target_configdirs has
3049 # changed from the earlier setting of with_newlib.
3050 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3051 target_configargs="--with-newlib ${target_configargs}"
3052 fi
3054 # Different target subdirs use different values of certain variables
3055 # (notably CXX). Worse, multilibs use *lots* of different values.
3056 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3057 # it doesn't automatically accept command-line overrides of them.
3058 # This means it's not safe for target subdirs to share a cache file,
3059 # which is disgusting, but there you have it. Hopefully this can be
3060 # fixed in future. It's still worthwhile to use a cache file for each
3061 # directory. I think.
3063 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3064 # We need to pass --target, as newer autoconf's requires consistency
3065 # for target_alias and gcc doesn't manage it consistently.
3066 target_configargs="--cache-file=./config.cache ${target_configargs}"
3068 FLAGS_FOR_TARGET=
3069 case " $target_configdirs " in
3070 *" newlib "*)
3071 case " $target_configargs " in
3072 *" --with-newlib "*)
3073 case "$target" in
3074 *-cygwin*)
3075 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3076 ;;
3077 esac
3079 # If we're not building GCC, don't discard standard headers.
3080 if test -d ${srcdir}/gcc; then
3081 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3083 if test "${build}" != "${host}"; then
3084 # On Canadian crosses, CC_FOR_TARGET will have already been set
3085 # by `configure', so we won't have an opportunity to add -Bgcc/
3086 # to it. This is right: we don't want to search that directory
3087 # for binaries, but we want the header files in there, so add
3088 # them explicitly.
3089 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3091 # Someone might think of using the pre-installed headers on
3092 # Canadian crosses, in case the installed compiler is not fully
3093 # compatible with the compiler being built. In this case, it
3094 # would be better to flag an error than risking having
3095 # incompatible object files being constructed. We can't
3096 # guarantee that an error will be flagged, but let's hope the
3097 # compiler will do it, when presented with incompatible header
3098 # files.
3099 fi
3100 fi
3102 case "${target}-${is_cross_compiler}" in
3103 i[[3456789]]86-*-linux*-no)
3104 # Here host == target, so we don't need to build gcc,
3105 # so we don't want to discard standard headers.
3106 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3107 ;;
3108 *)
3109 # If we're building newlib, use its generic headers last, but search
3110 # for any libc-related directories first (so make it the last -B
3111 # switch).
3112 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3114 # If we're building libgloss, find the startup file, simulator library
3115 # and linker script.
3116 case " $target_configdirs " in
3117 *" libgloss "*)
3118 # Look for startup file, simulator library and maybe linker script.
3119 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3120 # Look for libnosys.a in case the target needs it.
3121 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3122 # Most targets have the linker script in the source directory.
3123 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3124 ;;
3125 esac
3126 ;;
3127 esac
3128 ;;
3129 esac
3130 ;;
3131 esac
3133 case "$target" in
3134 x86_64-*mingw* | *-w64-mingw*)
3135 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3136 # however, use a symlink named 'mingw' in ${prefix} .
3137 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3138 ;;
3139 *-mingw*)
3140 # MinGW can't be handled as Cygwin above since it does not use newlib.
3141 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3142 ;;
3143 esac
3145 # Allow the user to override the flags for
3146 # our build compiler if desired.
3147 if test x"${build}" = x"${host}" ; then
3148 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3149 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3150 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3151 fi
3153 # On Canadian crosses, we'll be searching the right directories for
3154 # the previously-installed cross compiler, so don't bother to add
3155 # flags for directories within the install tree of the compiler
3156 # being built; programs in there won't even run.
3157 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3158 # Search for pre-installed headers if nothing else fits.
3159 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3160 fi
3162 if test "x${use_gnu_ld}" = x &&
3163 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3164 # Arrange for us to find uninstalled linker scripts.
3165 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3166 fi
3168 # Search for other target-specific linker scripts and such.
3169 case "${target}" in
3170 mep*)
3171 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3172 ;;
3173 esac
3175 # Makefile fragments.
3176 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3177 do
3178 eval fragval=\$$frag
3179 if test $fragval != /dev/null; then
3180 eval $frag=${srcdir}/$fragval
3181 fi
3182 done
3183 AC_SUBST_FILE(host_makefile_frag)
3184 AC_SUBST_FILE(target_makefile_frag)
3185 AC_SUBST_FILE(alphaieee_frag)
3186 AC_SUBST_FILE(ospace_frag)
3188 # Miscellanea: directories, flags, etc.
3189 AC_SUBST(RPATH_ENVVAR)
3190 AC_SUBST(GCC_SHLIB_SUBDIR)
3191 AC_SUBST(tooldir)
3192 AC_SUBST(build_tooldir)
3193 AC_SUBST(CONFIGURE_GDB_TK)
3194 AC_SUBST(GDB_TK)
3195 AC_SUBST(INSTALL_GDB_TK)
3197 # Build module lists & subconfigure args.
3198 AC_SUBST(build_configargs)
3199 AC_SUBST(build_configdirs)
3201 # Host module lists & subconfigure args.
3202 AC_SUBST(host_configargs)
3203 AC_SUBST(configdirs)
3204 AC_SUBST(target_configdirs)
3206 # Target module lists & subconfigure args.
3207 AC_SUBST(target_configargs)
3210 # Build tools.
3211 AC_SUBST(AR_FOR_BUILD)
3212 AC_SUBST(AS_FOR_BUILD)
3213 AC_SUBST(CC_FOR_BUILD)
3214 AC_SUBST(CFLAGS_FOR_BUILD)
3215 AC_SUBST(CXXFLAGS_FOR_BUILD)
3216 AC_SUBST(CXX_FOR_BUILD)
3217 AC_SUBST(DLLTOOL_FOR_BUILD)
3218 AC_SUBST(GFORTRAN_FOR_BUILD)
3219 AC_SUBST(GOC_FOR_BUILD)
3220 AC_SUBST(LDFLAGS_FOR_BUILD)
3221 AC_SUBST(LD_FOR_BUILD)
3222 AC_SUBST(NM_FOR_BUILD)
3223 AC_SUBST(RANLIB_FOR_BUILD)
3224 AC_SUBST(WINDMC_FOR_BUILD)
3225 AC_SUBST(WINDRES_FOR_BUILD)
3227 # Generate default definitions for YACC, M4, LEX and other programs that run
3228 # on the build machine. These are used if the Makefile can't locate these
3229 # programs in objdir.
3230 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3232 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3233 case " $build_configdirs " in
3234 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3235 esac
3237 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3238 case " $build_configdirs " in
3239 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3240 esac
3242 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3243 case " $build_configdirs " in
3244 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3245 esac
3247 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3248 case " $build_configdirs " in
3249 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3250 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3251 esac
3253 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3254 case " $build_configdirs " in
3255 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3256 esac
3258 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3259 case " $build_configdirs " in
3260 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3261 *)
3262 changequote(,)
3263 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3264 # higher, else we use the "missing" dummy.
3265 if ${MAKEINFO} --version \
3266 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3267 :
3268 else
3269 MAKEINFO="$MISSING makeinfo"
3270 fi
3271 ;;
3272 changequote([,])
3273 esac
3275 # FIXME: expect and dejagnu may become build tools?
3277 AC_CHECK_PROGS(EXPECT, expect, expect)
3278 case " $configdirs " in
3279 *" expect "*)
3280 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3281 ;;
3282 esac
3284 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3285 case " $configdirs " in
3286 *" dejagnu "*)
3287 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3288 ;;
3289 esac
3292 # Host tools.
3293 NCN_STRICT_CHECK_TOOLS(AR, ar)
3294 NCN_STRICT_CHECK_TOOLS(AS, as)
3295 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3296 NCN_STRICT_CHECK_TOOLS(LD, ld)
3297 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3298 NCN_STRICT_CHECK_TOOLS(NM, nm)
3299 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3300 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3301 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3302 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3303 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3304 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3305 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3306 AC_SUBST(CC)
3307 AC_SUBST(CXX)
3308 AC_SUBST(CFLAGS)
3309 AC_SUBST(CXXFLAGS)
3311 # Target tools.
3312 AC_ARG_WITH([build-time-tools],
3313 [AS_HELP_STRING([--with-build-time-tools=PATH],
3314 [use given path to find target tools during the build])],
3315 [case x"$withval" in
3316 x/*) ;;
3317 *)
3318 with_build_time_tools=
3319 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3320 ;;
3321 esac],
3322 [with_build_time_tools=])
3324 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3325 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3326 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3327 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3328 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3330 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3331 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3332 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3333 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3334 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3335 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3336 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3337 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3338 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3339 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3340 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3341 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3342 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3344 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3346 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3347 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3348 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3349 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3350 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3351 [gcc/xg++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `if test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags; then $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3352 c++)
3353 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3354 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3355 c++)
3356 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3357 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3358 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3359 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3360 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3361 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3362 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3363 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3364 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3365 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3366 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3367 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3368 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3369 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3370 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3371 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3373 AC_SUBST(FLAGS_FOR_TARGET)
3374 AC_SUBST(RAW_CXX_FOR_TARGET)
3376 # Certain tools may need extra flags.
3377 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3378 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3379 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3381 # When building target libraries, except in a Canadian cross, we use
3382 # the same toolchain as the compiler we just built.
3383 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3384 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3385 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3386 if test $host = $build; then
3387 case " $configdirs " in
3388 *" gcc "*)
3389 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3390 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3391 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3392 ;;
3393 esac
3394 fi
3396 AC_SUBST(COMPILER_AS_FOR_TARGET)
3397 AC_SUBST(COMPILER_LD_FOR_TARGET)
3398 AC_SUBST(COMPILER_NM_FOR_TARGET)
3400 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3401 AC_ARG_ENABLE(maintainer-mode,
3402 [AS_HELP_STRING([--enable-maintainer-mode],
3403 [enable make rules and dependencies not useful
3404 (and sometimes confusing) to the casual installer])],
3405 USE_MAINTAINER_MODE=$enableval,
3406 USE_MAINTAINER_MODE=no)
3407 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3408 AC_SUBST(MAINTAINER_MODE_TRUE)
3409 AC_SUBST(MAINTAINER_MODE_FALSE)
3410 if test "$USE_MAINTAINER_MODE" = yes; then
3411 MAINTAINER_MODE_TRUE=
3412 MAINTAINER_MODE_FALSE='#'
3413 else
3414 MAINTAINER_MODE_TRUE='#'
3415 MAINTAINER_MODE_FALSE=
3416 fi
3417 MAINT=$MAINTAINER_MODE_TRUE
3418 AC_SUBST(MAINT)dnl
3420 # ---------------------
3421 # GCC bootstrap support
3422 # ---------------------
3424 # Stage specific cflags for build.
3425 stage1_cflags="-g"
3426 case $build in
3427 vax-*-*)
3428 case ${GCC} in
3429 yes) stage1_cflags="-g -Wa,-J" ;;
3430 *) stage1_cflags="-g -J" ;;
3431 esac ;;
3432 esac
3434 AC_SUBST(stage1_cflags)
3436 # Enable --enable-checking in stage1 of the compiler.
3437 AC_ARG_ENABLE(stage1-checking,
3438 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3439 [choose additional checking for stage1 of the compiler])],
3440 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3441 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3442 # For --disable-checking or implicit --enable-checking=release, avoid
3443 # setting --enable-checking=gc in the default stage1 checking for LTO
3444 # bootstraps. See PR62077.
3445 case $BUILD_CONFIG in
3446 *lto*)
3447 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3448 *)
3449 stage1_checking=--enable-checking=yes,types;;
3450 esac
3451 if test "x$enable_checking" = x && \
3452 test -d ${srcdir}/gcc && \
3453 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3454 stage1_checking=--enable-checking=yes,types,extra
3455 fi
3456 else
3457 stage1_checking=--enable-checking=$enable_checking,types
3458 fi])
3459 AC_SUBST(stage1_checking)
3461 # Enable -Werror in bootstrap stage2 and later.
3462 AC_ARG_ENABLE(werror,
3463 [AS_HELP_STRING([--enable-werror],
3464 [enable -Werror in bootstrap stage2 and later])], [],
3465 [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3466 enable_werror=yes
3467 else
3468 enable_werror=no
3469 fi])
3470 case ${enable_werror} in
3471 yes) stage2_werror_flag="--enable-werror-always" ;;
3472 *) stage2_werror_flag="" ;;
3473 esac
3474 AC_SUBST(stage2_werror_flag)
3476 # Enable --enable-host-shared.
3477 AC_ARG_ENABLE(host-shared,
3478 [AS_HELP_STRING([--enable-host-shared],
3479 [build host code as shared libraries])],
3480 [host_shared=$enableval], [host_shared=no])
3481 AC_SUBST(host_shared)
3483 # PR jit/64780: Require the user to explicitly specify
3484 # --enable-host-shared if the jit is enabled, hinting
3485 # that they might want to do a separate configure/build of
3486 # the jit, to avoid users from slowing down the rest of the
3487 # compiler by enabling the jit.
3488 if test ${host_shared} = "no" ; then
3489 case "${enable_languages}" in
3490 *jit*)
3491 AC_MSG_ERROR([
3492 Enabling language "jit" requires --enable-host-shared.
3494 --enable-host-shared typically slows the rest of the compiler down by
3495 a few %, so you must explicitly enable it.
3497 If you want to build both the jit and the regular compiler, it is often
3498 best to do this via two separate configure/builds, in separate
3499 directories, to avoid imposing the performance cost of
3500 --enable-host-shared on the regular compiler.])
3501 ;;
3502 *)
3503 ;;
3504 esac
3505 fi
3507 # Specify what files to not compare during bootstrap.
3509 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3510 case "$target" in
3511 hppa*64*-*-hpux*) ;;
3512 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;;
3513 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3514 esac
3515 AC_SUBST(compare_exclusions)
3517 AC_CONFIG_FILES([Makefile],
3518 [sed "$extrasub_build" Makefile |
3519 sed "$extrasub_host" |
3520 sed "$extrasub_target" > mf$$
3521 mv -f mf$$ Makefile],
3522 [extrasub_build="$extrasub_build"
3523 extrasub_host="$extrasub_host"
3524 extrasub_target="$extrasub_target"])
3525 AC_OUTPUT