| blob | aae94501e48386e80a8276192e9ec8a8b9ec8bb1 |
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-liboffloadmic \
154 target-libhsail-rt \
155 target-libatomic \
156 target-libitm \
157 target-libstdc++-v3 \
158 target-libsanitizer \
159 target-libvtv \
160 target-libmpx \
161 target-libssp \
162 target-libquadmath \
163 target-libgfortran \
164 target-libffi \
165 target-libobjc \
166 target-libada \
167 target-libgo"
169 # these tools are built using the target libraries, and are intended to
170 # run only in the target environment
171 #
172 # note: any program that *uses* libraries that are in the "target_libraries"
173 # list belongs in this list.
174 #
175 target_tools="target-rda"
177 ################################################################################
179 ## All tools belong in one of the four categories, and are assigned above
180 ## We assign ${configdirs} this way to remove all embedded newlines. This
181 ## is important because configure will choke if they ever get through.
182 ## ${configdirs} is directories we build using the host tools.
183 ## ${target_configdirs} is directories we build using the target tools.
184 configdirs=`echo ${host_libs} ${host_tools}`
185 target_configdirs=`echo ${target_libraries} ${target_tools}`
186 build_configdirs=`echo ${build_libs} ${build_tools}`
188 m4_divert_text([PARSE_ARGS],
189 [case $srcdir in
190 *" "*)
191 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
192 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
193 m4_popdef([AS_MESSAGE_LOG_FD])dnl
194 ;;
195 esac
196 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
197 ])
199 ################################################################################
201 srcname="gnu development package"
203 # This gets set non-empty for some net releases of packages.
204 appdirs=""
206 # Define is_cross_compiler to save on calls to 'test'.
207 is_cross_compiler=
208 if test x"${host}" = x"${target}" ; then
209 is_cross_compiler=no
210 else
211 is_cross_compiler=yes
212 fi
214 # Find the build and target subdir names.
215 GCC_TOPLEV_SUBDIRS
216 # Be sure to cover against remnants of an in-tree build.
217 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
218 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
219 Use a pristine source tree when building in a separate tree])
220 fi
222 # Skipdirs are removed silently.
223 skipdirs=
224 # Noconfigdirs are removed loudly.
225 noconfigdirs=""
227 use_gnu_ld=
228 # Make sure we don't let GNU ld be added if we didn't want it.
229 if test x$with_gnu_ld = xno ; then
230 use_gnu_ld=no
231 noconfigdirs="$noconfigdirs ld gold"
232 fi
234 use_gnu_as=
235 # Make sure we don't let GNU as be added if we didn't want it.
236 if test x$with_gnu_as = xno ; then
237 use_gnu_as=no
238 noconfigdirs="$noconfigdirs gas"
239 fi
241 use_included_zlib=
242 AC_ARG_WITH(system-zlib,
243 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
244 # Make sure we don't let ZLIB be added if we didn't want it.
245 if test x$with_system_zlib = xyes ; then
246 use_included_zlib=no
247 noconfigdirs="$noconfigdirs zlib"
248 fi
250 # some tools are so dependent upon X11 that if we're not building with X,
251 # it's not even worth trying to configure, much less build, that tool.
253 case ${with_x} in
254 yes | "") ;; # the default value for this tree is that X11 is available
255 no)
256 skipdirs="${skipdirs} tk itcl libgui"
257 # We won't be able to build gdbtk without X.
258 enable_gdbtk=no
259 ;;
260 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
261 esac
263 # Some are only suitable for cross toolchains.
264 # Remove these if host=target.
265 cross_only="target-libgloss target-newlib target-opcodes"
267 case $is_cross_compiler in
268 no) skipdirs="${skipdirs} ${cross_only}" ;;
269 esac
271 # If both --with-headers and --with-libs are specified, default to
272 # --without-newlib.
273 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
274 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
275 if test x"${with_newlib}" = x ; then
276 with_newlib=no
277 fi
278 fi
280 # Recognize --with-newlib/--without-newlib.
281 case ${with_newlib} in
282 no) skipdirs="${skipdirs} target-newlib" ;;
283 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
284 esac
286 AC_ARG_ENABLE(as-accelerator-for,
287 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
288 [build as offload target compiler.
289 Specify offload host triple by ARG])])
291 AC_ARG_ENABLE(offload-targets,
292 [AS_HELP_STRING([--enable-offload-targets=LIST],
293 [enable offloading to devices from comma-separated LIST of
294 TARGET[=DIR]. Use optional path to find offload target compiler
295 during the build])],
296 [
297 if test x"$enable_offload_targets" = x; then
298 AC_MSG_ERROR([no offload targets specified])
299 fi
300 ], [enable_offload_targets=])
302 # Handle --enable-gold, --enable-ld.
303 # --disable-gold [--enable-ld]
304 # Build only ld. Default option.
305 # --enable-gold [--enable-ld]
306 # Build both gold and ld. Install gold as "ld.gold", install ld
307 # as "ld.bfd" and "ld".
308 # --enable-gold=default [--enable-ld]
309 # Build both gold and ld. Install gold as "ld.gold" and "ld",
310 # install ld as "ld.bfd".
311 # --enable-gold[=default] --disable-ld
312 # Build only gold, which is then installed as both "ld.gold" and "ld".
313 # --enable-gold --enable-ld=default
314 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
315 # and ld.bfd).
316 # In other words, ld is default
317 # --enable-gold=default --enable-ld=default
318 # Error.
320 default_ld=
321 AC_ARG_ENABLE(gold,
322 [AS_HELP_STRING([[--enable-gold[=ARG]]],
323 [build gold @<:@ARG={default,yes,no}@:>@])],
324 ENABLE_GOLD=$enableval,
325 ENABLE_GOLD=no)
326 case "${ENABLE_GOLD}" in
327 yes|default)
328 # Check for ELF target.
329 is_elf=no
330 case "${target}" in
331 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
332 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
333 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
334 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
335 case "${target}" in
336 *-*-linux*aout* | *-*-linux*oldld*)
337 ;;
338 *)
339 is_elf=yes
340 ;;
341 esac
342 esac
344 if test "$is_elf" = "yes"; then
345 # Check for target supported by gold.
346 case "${target}" in
347 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
348 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
349 configdirs="$configdirs gold"
350 if test x${ENABLE_GOLD} = xdefault; then
351 default_ld=gold
352 fi
353 ENABLE_GOLD=yes
354 ;;
355 esac
356 fi
357 ;;
358 no)
359 ;;
360 *)
361 AC_MSG_ERROR([invalid --enable-gold argument])
362 ;;
363 esac
365 AC_ARG_ENABLE(ld,
366 [AS_HELP_STRING([[--enable-ld[=ARG]]],
367 [build ld @<:@ARG={default,yes,no}@:>@])],
368 ENABLE_LD=$enableval,
369 ENABLE_LD=yes)
371 case "${ENABLE_LD}" in
372 default)
373 if test x${default_ld} != x; then
374 AC_MSG_ERROR([either gold or ld can be the default ld])
375 fi
376 ;;
377 yes)
378 ;;
379 no)
380 if test x${ENABLE_GOLD} != xyes; then
381 AC_MSG_WARN([neither ld nor gold are enabled])
382 fi
383 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
384 ;;
385 *)
386 AC_MSG_ERROR([invalid --enable-ld argument])
387 ;;
388 esac
390 # PR gas/19109
391 # Decide the default method for compressing debug sections.
392 # Provide a configure time option to override our default.
393 AC_ARG_ENABLE(compressed_debug_sections,
394 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
395 [Enable compressed debug sections for gas, gold or ld by
396 default])],
397 [
398 if test x"$enable_compressed_debug_sections" = xyes; then
399 AC_MSG_ERROR([no program with compressed debug sections specified])
400 fi
401 ], [enable_compressed_debug_sections=])
403 # Configure extra directories which are host specific
405 case "${host}" in
406 *-cygwin*)
407 configdirs="$configdirs libtermcap" ;;
408 esac
410 # A target can indicate whether a language isn't supported for some reason.
411 # Only spaces may be used in this macro; not newlines or tabs.
412 unsupported_languages=
414 # Remove more programs from consideration, based on the host or
415 # target this usually means that a port of the program doesn't
416 # exist yet.
418 case "${host}" in
419 i[[3456789]]86-*-msdosdjgpp*)
420 noconfigdirs="$noconfigdirs tcl tk itcl"
421 ;;
422 esac
425 AC_ARG_ENABLE(libquadmath,
426 AS_HELP_STRING([--disable-libquadmath],
427 [do not build libquadmath directory]),
428 ENABLE_LIBQUADMATH=$enableval,
429 ENABLE_LIBQUADMATH=yes)
430 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
431 noconfigdirs="$noconfigdirs target-libquadmath"
432 fi
435 AC_ARG_ENABLE(libquadmath-support,
436 AS_HELP_STRING([--disable-libquadmath-support],
437 [disable libquadmath support for Fortran]),
438 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
439 ENABLE_LIBQUADMATH_SUPPORT=yes)
440 enable_libquadmath_support=
441 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
442 enable_libquadmath_support=no
443 fi
446 AC_ARG_ENABLE(libada,
447 [AS_HELP_STRING([--enable-libada], [build libada directory])],
448 ENABLE_LIBADA=$enableval,
449 ENABLE_LIBADA=yes)
450 if test "${ENABLE_LIBADA}" != "yes" ; then
451 noconfigdirs="$noconfigdirs gnattools"
452 fi
454 AC_ARG_ENABLE(libssp,
455 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
456 ENABLE_LIBSSP=$enableval,
457 ENABLE_LIBSSP=yes)
459 AC_ARG_ENABLE(libstdcxx,
460 AS_HELP_STRING([--disable-libstdcxx],
461 [do not build libstdc++-v3 directory]),
462 ENABLE_LIBSTDCXX=$enableval,
463 ENABLE_LIBSTDCXX=default)
464 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
465 noconfigdirs="$noconfigdirs target-libstdc++-v3"
466 fi]
468 # If this is accelerator compiler and its target is intelmic we enable
469 # target liboffloadmic by default. If this is compiler with offloading
470 # for intelmic we enable host liboffloadmic by default. Otherwise
471 # liboffloadmic is disabled by default.
472 AC_ARG_ENABLE([liboffloadmic],
473 AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
474 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
475 [case "$enableval" in
476 no | host | target)
477 enable_liboffloadmic=$enableval ;;
478 *)
479 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
480 esac],
481 [if test x"$enable_as_accelerator_for" != x; then
482 case "${target}" in
483 *-intelmic-* | *-intelmicemul-*)
484 enable_liboffloadmic=target
485 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
486 ;;
487 *)
488 enable_liboffloadmic=no
489 ;;
490 esac
491 else
492 case "${enable_offload_targets}" in
493 *-intelmic-* | *-intelmicemul-*)
494 enable_liboffloadmic=host
495 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
496 ;;
497 *)
498 enable_liboffloadmic=no
499 ;;
500 esac
501 fi])
502 AC_SUBST(extra_liboffloadmic_configure_flags)
504 # Enable libgomp by default on hosted POSIX systems, and a few others.
505 if test x$enable_libgomp = x ; then
506 case "${target}" in
507 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
508 ;;
509 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
510 ;;
511 *-*-solaris2* | *-*-hpux11*)
512 ;;
513 *-*-darwin* | *-*-aix*)
514 ;;
515 nvptx*-*-*)
516 ;;
517 *)
518 noconfigdirs="$noconfigdirs target-libgomp"
519 ;;
520 esac
521 fi
523 # Disable libatomic on unsupported systems.
524 if test -d ${srcdir}/libatomic; then
525 if test x$enable_libatomic = x; then
526 AC_MSG_CHECKING([for libatomic support])
527 if (srcdir=${srcdir}/libatomic; \
528 . ${srcdir}/configure.tgt; \
529 test -n "$UNSUPPORTED")
530 then
531 AC_MSG_RESULT([no])
532 noconfigdirs="$noconfigdirs target-libatomic"
533 else
534 AC_MSG_RESULT([yes])
535 fi
536 fi
537 fi
539 # Disable liboffloadmic on unsupported systems.
540 if test -d ${srcdir}/liboffloadmic; then
541 if test x$enable_liboffloadmic != xno; then
542 AC_MSG_CHECKING([for liboffloadmic support])
543 if (srcdir=${srcdir}/liboffloadmic; \
544 . ${srcdir}/configure.tgt; \
545 test -n "$UNSUPPORTED")
546 then
547 AC_MSG_RESULT([no])
548 noconfigdirs="$noconfigdirs target-liboffloadmic"
549 else
550 AC_MSG_RESULT([yes])
551 fi
552 fi
553 fi
555 # Disable libitm on unsupported systems.
556 if test -d ${srcdir}/libitm; then
557 if test x$enable_libitm = x; then
558 AC_MSG_CHECKING([for libitm support])
559 if (srcdir=${srcdir}/libitm; \
560 . ${srcdir}/configure.tgt; \
561 test -n "$UNSUPPORTED")
562 then
563 AC_MSG_RESULT([no])
564 noconfigdirs="$noconfigdirs target-libitm"
565 else
566 AC_MSG_RESULT([yes])
567 fi
568 fi
569 fi
571 # Disable libsanitizer on unsupported systems.
572 if test -d ${srcdir}/libsanitizer; then
573 if test x$enable_libsanitizer = x; then
574 AC_MSG_CHECKING([for libsanitizer support])
575 if (srcdir=${srcdir}/libsanitizer; \
576 . ${srcdir}/configure.tgt; \
577 test -n "$UNSUPPORTED")
578 then
579 AC_MSG_RESULT([no])
580 noconfigdirs="$noconfigdirs target-libsanitizer"
581 else
582 AC_MSG_RESULT([yes])
583 fi
584 fi
585 fi
587 # Disable libvtv on unsupported systems.
588 if test -d ${srcdir}/libvtv; then
589 if test x$enable_libvtv = x; then
590 AC_MSG_CHECKING([for libvtv support])
591 if (srcdir=${srcdir}/libvtv; \
592 . ${srcdir}/configure.tgt; \
593 test "$VTV_SUPPORTED" != "yes")
594 then
595 AC_MSG_RESULT([no])
596 noconfigdirs="$noconfigdirs target-libvtv"
597 else
598 AC_MSG_RESULT([yes])
599 fi
600 fi
601 fi
604 # Enable libmpx on supported systems by request.
605 if test -d ${srcdir}/libmpx; then
606 if test x$enable_libmpx = x; then
607 AC_MSG_CHECKING([for libmpx support])
608 if (srcdir=${srcdir}/libmpx; \
609 . ${srcdir}/configure.tgt; \
610 test "$LIBMPX_SUPPORTED" != "yes")
611 then
612 AC_MSG_RESULT([no])
613 noconfigdirs="$noconfigdirs target-libmpx"
614 else
615 AC_MSG_RESULT([yes])
616 fi
617 fi
618 fi
620 # Disable libhsail-rt on unsupported systems.
621 if test -d ${srcdir}/libhsail-rt; then
622 if test x$enable_libhsail_rt = x; then
623 AC_MSG_CHECKING([for libhsail-rt support])
624 if (srcdir=${srcdir}/libhsail-rt; \
625 . ${srcdir}/configure.tgt; \
626 test -n "$UNSUPPORTED")
627 then
628 AC_MSG_RESULT([no])
629 unsupported_languages="$unsupported_languages brig"
630 # This implicitly disables also target-libhsail-rt as it won't
631 # get added to the build without BRIG FE.
632 else
633 AC_MSG_RESULT([yes])
634 fi
635 fi
636 fi
639 # Disable libquadmath for some systems.
640 case "${target}" in
641 avr-*-*)
642 noconfigdirs="$noconfigdirs target-libquadmath"
643 ;;
644 # libquadmath is unused on AIX and libquadmath build process use of
645 # LD_LIBRARY_PATH can break AIX bootstrap.
646 powerpc-*-aix* | rs6000-*-aix*)
647 noconfigdirs="$noconfigdirs target-libquadmath"
648 ;;
649 esac
651 # Disable libssp for some systems.
652 case "${target}" in
653 avr-*-*)
654 # No hosted I/O support.
655 noconfigdirs="$noconfigdirs target-libssp"
656 ;;
657 powerpc-*-aix* | rs6000-*-aix*)
658 noconfigdirs="$noconfigdirs target-libssp"
659 ;;
660 rl78-*-*)
661 # libssp uses a misaligned load to trigger a fault, but the RL78
662 # doesn't fault for those - instead, it gives a build-time error
663 # for explicit misaligned loads.
664 noconfigdirs="$noconfigdirs target-libssp"
665 ;;
666 visium-*-*)
667 # No hosted I/O support.
668 noconfigdirs="$noconfigdirs target-libssp"
669 ;;
670 esac
672 # Disable libstdc++-v3 for some systems.
673 # Allow user to override this if they pass --enable-libstdc++-v3
674 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
675 case "${target}" in
676 *-*-vxworks*)
677 # VxWorks uses the Dinkumware C++ library.
678 noconfigdirs="$noconfigdirs target-libstdc++-v3"
679 ;;
680 arm*-wince-pe*)
681 # the C++ libraries don't build on top of CE's C libraries
682 noconfigdirs="$noconfigdirs target-libstdc++-v3"
683 ;;
684 avr-*-*)
685 noconfigdirs="$noconfigdirs target-libstdc++-v3"
686 ;;
687 ft32-*-*)
688 noconfigdirs="$noconfigdirs target-libstdc++-v3"
689 ;;
690 esac
691 fi
693 # Disable Fortran for some systems.
694 case "${target}" in
695 mmix-*-*)
696 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
697 unsupported_languages="$unsupported_languages fortran"
698 ;;
699 esac
701 # Disable libffi for some systems.
702 case "${target}" in
703 powerpc-*-darwin*)
704 ;;
705 i[[3456789]]86-*-darwin*)
706 ;;
707 x86_64-*-darwin[[912]]*)
708 ;;
709 *-*-darwin*)
710 noconfigdirs="$noconfigdirs target-libffi"
711 ;;
712 *-*-netware*)
713 noconfigdirs="$noconfigdirs target-libffi"
714 ;;
715 *-*-phoenix*)
716 noconfigdirs="$noconfigdirs target-libffi"
717 ;;
718 *-*-rtems*)
719 noconfigdirs="$noconfigdirs target-libffi"
720 ;;
721 *-*-tpf*)
722 noconfigdirs="$noconfigdirs target-libffi"
723 ;;
724 *-*-uclinux*)
725 noconfigdirs="$noconfigdirs target-libffi"
726 ;;
727 *-*-vxworks*)
728 noconfigdirs="$noconfigdirs target-libffi"
729 ;;
730 aarch64*-*-freebsd*)
731 noconfigdirs="$noconfigdirs target-libffi"
732 ;;
733 alpha*-*-*vms*)
734 noconfigdirs="$noconfigdirs target-libffi"
735 ;;
736 arm*-*-freebsd*)
737 noconfigdirs="$noconfigdirs target-libffi"
738 ;;
739 arm-wince-pe)
740 noconfigdirs="$noconfigdirs target-libffi"
741 ;;
742 arm*-*-symbianelf*)
743 noconfigdirs="$noconfigdirs target-libffi"
744 ;;
745 cris-*-* | crisv32-*-*)
746 case "${target}" in
747 *-*-linux*)
748 ;;
749 *) # See PR46792 regarding target-libffi.
750 noconfigdirs="$noconfigdirs target-libffi";;
751 esac
752 ;;
753 hppa*64*-*-hpux*)
754 noconfigdirs="$noconfigdirs target-libffi"
755 ;;
756 hppa*-hp-hpux11*)
757 ;;
758 hppa*-*-hpux*)
759 noconfigdirs="$noconfigdirs target-libffi"
760 ;;
761 ia64*-*-*vms*)
762 noconfigdirs="$noconfigdirs target-libffi"
763 ;;
764 i[[3456789]]86-w64-mingw*)
765 noconfigdirs="$noconfigdirs target-libffi"
766 ;;
767 i[[3456789]]86-*-mingw*)
768 noconfigdirs="$noconfigdirs target-libffi"
769 ;;
770 x86_64-*-mingw*)
771 noconfigdirs="$noconfigdirs target-libffi"
772 ;;
773 mmix-*-*)
774 noconfigdirs="$noconfigdirs target-libffi"
775 ;;
776 powerpc-*-aix*)
777 ;;
778 rs6000-*-aix*)
779 ;;
780 ft32-*-*)
781 noconfigdirs="$noconfigdirs target-libffi"
782 ;;
783 *-*-lynxos*)
784 noconfigdirs="$noconfigdirs target-libffi"
785 ;;
786 esac
788 # Disable the go frontend on systems where it is known to not work. Please keep
789 # this in sync with contrib/config-list.mk.
790 case "${target}" in
791 *-*-darwin* | *-*-cygwin* | *-*-mingw*)
792 unsupported_languages="$unsupported_languages go"
793 ;;
794 esac
796 # Disable libgo for some systems where it is known to not work.
797 # For testing, you can easily override this with --enable-libgo.
798 if test x$enable_libgo = x; then
799 case "${target}" in
800 *-*-darwin*)
801 # PR 46986
802 noconfigdirs="$noconfigdirs target-libgo"
803 ;;
804 *-*-cygwin* | *-*-mingw*)
805 noconfigdirs="$noconfigdirs target-libgo"
806 ;;
807 esac
808 fi
810 # Default libgloss CPU subdirectory.
811 libgloss_dir="$target_cpu"
813 case "${target}" in
814 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
815 libgloss_dir=wince
816 ;;
817 aarch64*-*-* )
818 libgloss_dir=aarch64
819 ;;
820 arm*-*-*)
821 libgloss_dir=arm
822 ;;
823 cris-*-* | crisv32-*-*)
824 libgloss_dir=cris
825 ;;
826 hppa*-*-*)
827 libgloss_dir=pa
828 ;;
829 i[[3456789]]86-*-*)
830 libgloss_dir=i386
831 ;;
832 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
833 libgloss_dir=m68hc11
834 ;;
835 m68*-*-* | fido-*-*)
836 libgloss_dir=m68k
837 ;;
838 mips*-*-*)
839 libgloss_dir=mips
840 ;;
841 powerpc*-*-*)
842 libgloss_dir=rs6000
843 ;;
844 sparc*-*-*)
845 libgloss_dir=sparc
846 ;;
847 esac
849 # Disable newlib and libgloss for various target OSes.
850 case "${target}" in
851 alpha*-dec-osf*)
852 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
853 ;;
854 i[[3456789]]86-*-linux*)
855 # This section makes it possible to build newlib natively on linux.
856 # If we are using a cross compiler then don't configure newlib.
857 if test x${is_cross_compiler} != xno ; then
858 noconfigdirs="$noconfigdirs target-newlib"
859 fi
860 noconfigdirs="$noconfigdirs target-libgloss"
861 # If we are not using a cross compiler, do configure newlib.
862 # Note however, that newlib will only be configured in this situation
863 # if the --with-newlib option has been given, because otherwise
864 # 'target-newlib' will appear in skipdirs.
865 ;;
866 i[[3456789]]86-*-rdos*)
867 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
868 ;;
869 sh*-*-pe|mips*-*-pe|arm-wince-pe)
870 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
871 ;;
872 sparc-*-sunos4*)
873 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
874 ;;
875 *-*-aix*)
876 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
877 ;;
878 *-*-beos*)
879 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
880 ;;
881 *-*-chorusos)
882 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
883 ;;
884 *-*-dragonfly*)
885 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
886 ;;
887 *-*-freebsd*)
888 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
889 ;;
890 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
891 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
892 ;;
893 *-*-lynxos*)
894 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
895 ;;
896 *-*-mingw*)
897 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
898 ;;
899 *-*-netbsd*)
900 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
901 ;;
902 *-*-netware*)
903 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
904 ;;
905 *-*-tpf*)
906 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
907 ;;
908 *-*-uclinux*)
909 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
910 ;;
911 *-*-vxworks*)
912 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
913 ;;
914 esac
916 case "${target}" in
917 *-*-chorusos)
918 ;;
919 aarch64-*-darwin*)
920 noconfigdirs="$noconfigdirs ld gas gdb gprof"
921 noconfigdirs="$noconfigdirs sim target-rda"
922 ;;
923 arm-*-darwin*)
924 noconfigdirs="$noconfigdirs ld gas gdb gprof"
925 noconfigdirs="$noconfigdirs sim target-rda"
926 ;;
927 powerpc-*-darwin*)
928 noconfigdirs="$noconfigdirs ld gas gdb gprof"
929 noconfigdirs="$noconfigdirs sim target-rda"
930 ;;
931 i[[3456789]]86-*-darwin*)
932 noconfigdirs="$noconfigdirs ld gprof"
933 noconfigdirs="$noconfigdirs sim target-rda"
934 ;;
935 x86_64-*-darwin[[912]]*)
936 noconfigdirs="$noconfigdirs ld gas gprof"
937 noconfigdirs="$noconfigdirs sim target-rda"
938 ;;
939 *-*-darwin*)
940 noconfigdirs="$noconfigdirs ld gas gdb gprof"
941 noconfigdirs="$noconfigdirs sim target-rda"
942 ;;
943 *-*-dragonfly*)
944 ;;
945 *-*-freebsd*)
946 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
947 && test -f /usr/local/include/gmp.h; then
948 with_gmp=/usr/local
949 fi
950 ;;
951 *-*-kaos*)
952 # Remove unsupported stuff on all kaOS configurations.
953 noconfigdirs="$noconfigdirs target-libgloss"
954 ;;
955 *-*-netbsd*)
956 ;;
957 *-*-netware*)
958 ;;
959 *-*-phoenix*)
960 noconfigdirs="$noconfigdirs target-libgloss"
961 ;;
962 *-*-rtems*)
963 noconfigdirs="$noconfigdirs target-libgloss"
964 ;;
965 # The tpf target doesn't support gdb yet.
966 *-*-tpf*)
967 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
968 ;;
969 *-*-uclinux*)
970 noconfigdirs="$noconfigdirs target-rda"
971 ;;
972 *-*-vxworks*)
973 ;;
974 alpha*-dec-osf*)
975 # ld works, but does not support shared libraries.
976 # gas doesn't generate exception information.
977 noconfigdirs="$noconfigdirs gas ld"
978 ;;
979 alpha*-*-*vms*)
980 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
981 ;;
982 alpha*-*-*)
983 # newlib is not 64 bit ready
984 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
985 ;;
986 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
987 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
988 ;;
989 arc*-*-*)
990 noconfigdirs="$noconfigdirs sim"
991 ;;
992 arm-*-pe*)
993 noconfigdirs="$noconfigdirs target-libgloss"
994 ;;
995 arm-*-riscix*)
996 noconfigdirs="$noconfigdirs ld target-libgloss"
997 ;;
998 avr-*-*)
999 if test x${with_avrlibc} != xno; then
1000 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1001 fi
1002 ;;
1003 c4x-*-* | tic4x-*-*)
1004 noconfigdirs="$noconfigdirs target-libgloss"
1005 ;;
1006 tic54x-*-*)
1007 noconfigdirs="$noconfigdirs target-libgloss gdb"
1008 ;;
1009 d10v-*-*)
1010 noconfigdirs="$noconfigdirs target-libgloss"
1011 ;;
1012 d30v-*-*)
1013 noconfigdirs="$noconfigdirs gdb"
1014 ;;
1015 fr30-*-elf*)
1016 noconfigdirs="$noconfigdirs gdb"
1017 ;;
1018 ft32-*-*)
1019 noconfigdirs="$noconfigdirs target-rda gprof"
1020 ;;
1021 moxie-*-*)
1022 noconfigdirs="$noconfigdirs"
1023 ;;
1024 h8300*-*-*)
1025 noconfigdirs="$noconfigdirs target-libgloss"
1026 ;;
1027 h8500-*-*)
1028 noconfigdirs="$noconfigdirs target-libgloss"
1029 ;;
1030 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1031 ;;
1032 hppa*64*-*-hpux*)
1033 noconfigdirs="$noconfigdirs gdb"
1034 ;;
1035 hppa*-*-hpux11*)
1036 noconfigdirs="$noconfigdirs gdb ld"
1037 ;;
1038 hppa*64*-*-linux*)
1039 ;;
1040 hppa*-*-linux*)
1041 ;;
1042 hppa*-*-*elf* | \
1043 hppa*-*-lites* | \
1044 hppa*-*-openbsd* | \
1045 hppa*64*-*-*)
1046 ;;
1047 hppa*-*-pro*)
1048 ;;
1049 hppa*-*-*)
1050 noconfigdirs="$noconfigdirs ld"
1051 ;;
1052 i960-*-*)
1053 noconfigdirs="$noconfigdirs gdb"
1054 ;;
1055 ia64*-*-elf*)
1056 # No gdb support yet.
1057 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1058 ;;
1059 ia64*-**-hpux*)
1060 # No ld support yet.
1061 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1062 ;;
1063 ia64*-*-*vms*)
1064 # No ld support yet.
1065 noconfigdirs="$noconfigdirs libgui itcl ld"
1066 ;;
1067 i[[3456789]]86-w64-mingw*)
1068 ;;
1069 i[[3456789]]86-*-mingw*)
1070 target_configdirs="$target_configdirs target-winsup"
1071 ;;
1072 *-*-cygwin*)
1073 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1074 noconfigdirs="$noconfigdirs target-libgloss"
1075 # always build newlib if winsup directory is present.
1076 if test -d "$srcdir/winsup/cygwin"; then
1077 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1078 elif test -d "$srcdir/newlib"; then
1079 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1080 fi
1081 ;;
1082 i[[3456789]]86-*-pe)
1083 noconfigdirs="$noconfigdirs target-libgloss"
1084 ;;
1085 i[[3456789]]86-*-sco3.2v5*)
1086 # The linker does not yet know about weak symbols in COFF,
1087 # and is not configured to handle mixed ELF and COFF.
1088 noconfigdirs="$noconfigdirs ld target-libgloss"
1089 ;;
1090 i[[3456789]]86-*-sco*)
1091 noconfigdirs="$noconfigdirs gprof target-libgloss"
1092 ;;
1093 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1094 noconfigdirs="$noconfigdirs target-libgloss"
1095 ;;
1096 i[[3456789]]86-*-sysv4*)
1097 noconfigdirs="$noconfigdirs target-libgloss"
1098 ;;
1099 i[[3456789]]86-*-beos*)
1100 noconfigdirs="$noconfigdirs gdb"
1101 ;;
1102 i[[3456789]]86-*-rdos*)
1103 noconfigdirs="$noconfigdirs gdb"
1104 ;;
1105 mmix-*-*)
1106 noconfigdirs="$noconfigdirs gdb"
1107 ;;
1108 mt-*-*)
1109 noconfigdirs="$noconfigdirs sim"
1110 ;;
1111 powerpc-*-aix*)
1112 # copied from rs6000-*-* entry
1113 noconfigdirs="$noconfigdirs gprof"
1114 ;;
1115 powerpc*-*-winnt* | powerpc*-*-pe*)
1116 target_configdirs="$target_configdirs target-winsup"
1117 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1118 # always build newlib.
1119 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1120 ;;
1121 # This is temporary until we can link against shared libraries
1122 powerpcle-*-solaris*)
1123 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1124 ;;
1125 powerpc-*-beos*)
1126 noconfigdirs="$noconfigdirs gdb"
1127 ;;
1128 rs6000-*-lynxos*)
1129 noconfigdirs="$noconfigdirs gprof"
1130 ;;
1131 rs6000-*-aix*)
1132 noconfigdirs="$noconfigdirs gprof"
1133 ;;
1134 rs6000-*-*)
1135 noconfigdirs="$noconfigdirs gprof"
1136 ;;
1137 m68k-apollo-*)
1138 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1139 ;;
1140 microblaze*)
1141 noconfigdirs="$noconfigdirs gprof"
1142 ;;
1143 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1144 if test x$with_newlib = xyes; then
1145 noconfigdirs="$noconfigdirs gprof"
1146 fi
1147 ;;
1148 mips*-*-irix5*)
1149 noconfigdirs="$noconfigdirs gprof target-libgloss"
1150 ;;
1151 mips*-*-irix6*)
1152 noconfigdirs="$noconfigdirs gprof target-libgloss"
1153 ;;
1154 mips*-*-bsd*)
1155 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1156 ;;
1157 mips*-*-linux*)
1158 ;;
1159 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1160 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1161 noconfigdirs="$noconfigdirs ld gas gprof"
1162 ;;
1163 mips*-*-*)
1164 noconfigdirs="$noconfigdirs gprof"
1165 ;;
1166 nvptx*-*-*)
1167 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1168 ;;
1169 sh-*-*)
1170 case "${target}" in
1171 sh*-*-elf)
1172 ;;
1173 *)
1174 noconfigdirs="$noconfigdirs target-libgloss" ;;
1175 esac
1176 ;;
1177 sparc-*-sunos4*)
1178 if test x${is_cross_compiler} = xno ; then
1179 use_gnu_ld=no
1180 fi
1181 ;;
1182 tic6x-*-*)
1183 noconfigdirs="$noconfigdirs sim"
1184 ;;
1185 tilepro*-*-* | tilegx*-*-*)
1186 noconfigdirs="$noconfigdirs sim"
1187 ;;
1188 v810-*-*)
1189 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1190 ;;
1191 vax-*-*)
1192 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1193 ;;
1194 esac
1196 # If we aren't building newlib, then don't build libgloss, since libgloss
1197 # depends upon some newlib header files.
1198 case "${noconfigdirs}" in
1199 *target-libgloss*) ;;
1200 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1201 esac
1203 # Work in distributions that contain no compiler tools, like Autoconf.
1204 host_makefile_frag=/dev/null
1205 if test -d ${srcdir}/config ; then
1206 case "${host}" in
1207 i[[3456789]]86-*-msdosdjgpp*)
1208 host_makefile_frag="config/mh-djgpp"
1209 ;;
1210 *-cygwin*)
1211 ACX_CHECK_CYGWIN_CAT_WORKS
1212 host_makefile_frag="config/mh-cygwin"
1213 ;;
1214 *-mingw*)
1215 host_makefile_frag="config/mh-mingw"
1216 ;;
1217 alpha*-linux*)
1218 host_makefile_frag="config/mh-alpha-linux"
1219 ;;
1220 hppa*-hp-hpux10*)
1221 host_makefile_frag="config/mh-pa-hpux10"
1222 ;;
1223 hppa*-hp-hpux*)
1224 host_makefile_frag="config/mh-pa"
1225 ;;
1226 hppa*-*)
1227 host_makefile_frag="config/mh-pa"
1228 ;;
1229 *-*-darwin*)
1230 host_makefile_frag="config/mh-darwin"
1231 ;;
1232 powerpc-*-aix*)
1233 host_makefile_frag="config/mh-ppc-aix"
1234 ;;
1235 rs6000-*-aix*)
1236 host_makefile_frag="config/mh-ppc-aix"
1237 ;;
1238 esac
1239 fi
1241 if test "${build}" != "${host}" ; then
1242 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1243 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1244 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1245 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1246 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1247 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1248 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1249 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1250 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1251 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1252 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1253 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1254 else
1255 AR_FOR_BUILD="\$(AR)"
1256 AS_FOR_BUILD="\$(AS)"
1257 CC_FOR_BUILD="\$(CC)"
1258 CXX_FOR_BUILD="\$(CXX)"
1259 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1260 GOC_FOR_BUILD="\$(GOC)"
1261 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1262 LD_FOR_BUILD="\$(LD)"
1263 NM_FOR_BUILD="\$(NM)"
1264 RANLIB_FOR_BUILD="\$(RANLIB)"
1265 WINDRES_FOR_BUILD="\$(WINDRES)"
1266 WINDMC_FOR_BUILD="\$(WINDMC)"
1267 fi
1269 AC_PROG_CC
1270 AC_PROG_CXX
1272 # We must set the default linker to the linker used by gcc for the correct
1273 # operation of libtool. If LD is not defined and we are using gcc, try to
1274 # set the LD default to the ld used by gcc.
1275 if test -z "$LD"; then
1276 if test "$GCC" = yes; then
1277 case $build in
1278 *-*-mingw*)
1279 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1280 *)
1281 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1282 esac
1283 case $gcc_prog_ld in
1284 # Accept absolute paths.
1285 [[\\/]* | [A-Za-z]:[\\/]*)]
1286 LD="$gcc_prog_ld" ;;
1287 esac
1288 fi
1289 fi
1291 # Check whether -static-libstdc++ -static-libgcc is supported.
1292 have_static_libs=no
1293 if test "$GCC" = yes; then
1294 saved_LDFLAGS="$LDFLAGS"
1296 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1297 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1298 AC_LANG_PUSH(C++)
1299 AC_LINK_IFELSE([
1300 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1301 #error -static-libstdc++ not implemented
1302 #endif
1303 int main() {}],
1304 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1305 [AC_MSG_RESULT([no])])
1306 AC_LANG_POP(C++)
1308 LDFLAGS="$saved_LDFLAGS"
1309 fi
1311 ACX_PROG_GNAT
1312 ACX_PROG_CMP_IGNORE_INITIAL
1314 AC_ARG_ENABLE([bootstrap],
1315 [AS_HELP_STRING([--enable-bootstrap],
1316 [enable bootstrapping @<:@yes if native build@:>@])],,
1317 enable_bootstrap=default)
1319 # Issue errors and warnings for invalid/strange bootstrap combinations.
1320 if test -r $srcdir/gcc/configure; then
1321 have_compiler=yes
1322 else
1323 have_compiler=no
1324 fi
1326 case "$have_compiler:$host:$target:$enable_bootstrap" in
1327 *:*:*:no) ;;
1329 # Default behavior. Enable bootstrap if we have a compiler
1330 # and we are in a native configuration.
1331 yes:$build:$build:default)
1332 enable_bootstrap=yes ;;
1334 *:*:*:default)
1335 enable_bootstrap=no ;;
1337 # We have a compiler and we are in a native configuration, bootstrap is ok
1338 yes:$build:$build:yes)
1339 ;;
1341 # Other configurations, but we have a compiler. Assume the user knows
1342 # what he's doing.
1343 yes:*:*:yes)
1344 AC_MSG_WARN([trying to bootstrap a cross compiler])
1345 ;;
1347 # No compiler: if they passed --enable-bootstrap explicitly, fail
1348 no:*:*:yes)
1349 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1351 # Fail if wrong command line
1352 *)
1353 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1354 ;;
1355 esac
1357 # When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1358 # C++98 compiler can still start the bootstrap.
1359 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1360 CXX="$CXX -std=gnu++98"
1361 fi
1363 # Used for setting $lt_cv_objdir
1364 _LT_CHECK_OBJDIR
1366 # Check for GMP, MPFR and MPC
1367 gmplibs="-lmpc -lmpfr -lgmp"
1368 gmpinc=
1369 have_gmp=no
1371 # Specify a location for mpc
1372 # check for this first so it ends up on the link line before mpfr.
1373 AC_ARG_WITH(mpc,
1374 [AS_HELP_STRING([--with-mpc=PATH],
1375 [specify prefix directory for installed MPC package.
1376 Equivalent to --with-mpc-include=PATH/include
1377 plus --with-mpc-lib=PATH/lib])])
1378 AC_ARG_WITH(mpc-include,
1379 [AS_HELP_STRING([--with-mpc-include=PATH],
1380 [specify directory for installed MPC include files])])
1381 AC_ARG_WITH(mpc-lib,
1382 [AS_HELP_STRING([--with-mpc-lib=PATH],
1383 [specify directory for the installed MPC library])])
1385 if test "x$with_mpc" != x; then
1386 gmplibs="-L$with_mpc/lib $gmplibs"
1387 gmpinc="-I$with_mpc/include $gmpinc"
1388 fi
1389 if test "x$with_mpc_include" != x; then
1390 gmpinc="-I$with_mpc_include $gmpinc"
1391 fi
1392 if test "x$with_mpc_lib" != x; then
1393 gmplibs="-L$with_mpc_lib $gmplibs"
1394 fi
1395 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1396 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1397 gmpinc='-I$$s/mpc/src '"$gmpinc"
1398 # Do not test the mpc version. Assume that it is sufficient, since
1399 # it is in the source tree, and the library has not been built yet
1400 # but it would be included on the link line in the version check below
1401 # hence making the test fail.
1402 have_gmp=yes
1403 fi
1405 # Specify a location for mpfr
1406 # check for this first so it ends up on the link line before gmp.
1407 AC_ARG_WITH(mpfr-dir,
1408 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1409 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1410 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1412 AC_ARG_WITH(mpfr,
1413 [AS_HELP_STRING([--with-mpfr=PATH],
1414 [specify prefix directory for installed MPFR package.
1415 Equivalent to --with-mpfr-include=PATH/include
1416 plus --with-mpfr-lib=PATH/lib])])
1417 AC_ARG_WITH(mpfr-include,
1418 [AS_HELP_STRING([--with-mpfr-include=PATH],
1419 [specify directory for installed MPFR include files])])
1420 AC_ARG_WITH(mpfr-lib,
1421 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1422 [specify directory for the installed MPFR library])])
1424 if test "x$with_mpfr" != x; then
1425 gmplibs="-L$with_mpfr/lib $gmplibs"
1426 gmpinc="-I$with_mpfr/include $gmpinc"
1427 fi
1428 if test "x$with_mpfr_include" != x; then
1429 gmpinc="-I$with_mpfr_include $gmpinc"
1430 fi
1431 if test "x$with_mpfr_lib" != x; then
1432 gmplibs="-L$with_mpfr_lib $gmplibs"
1433 fi
1434 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1435 # MPFR v3.1.0 moved the sources into a src sub-directory.
1436 if ! test -d ${srcdir}/mpfr/src; then
1437 AC_MSG_ERROR([dnl
1438 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1439 fi
1440 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1441 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1442 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1443 # Do not test the mpfr version. Assume that it is sufficient, since
1444 # it is in the source tree, and the library has not been built yet
1445 # but it would be included on the link line in the version check below
1446 # hence making the test fail.
1447 have_gmp=yes
1448 fi
1450 # Specify a location for gmp
1451 AC_ARG_WITH(gmp-dir,
1452 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1453 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1454 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1456 AC_ARG_WITH(gmp,
1457 [AS_HELP_STRING([--with-gmp=PATH],
1458 [specify prefix directory for the installed GMP package.
1459 Equivalent to --with-gmp-include=PATH/include
1460 plus --with-gmp-lib=PATH/lib])])
1461 AC_ARG_WITH(gmp-include,
1462 [AS_HELP_STRING([--with-gmp-include=PATH],
1463 [specify directory for installed GMP include files])])
1464 AC_ARG_WITH(gmp-lib,
1465 [AS_HELP_STRING([--with-gmp-lib=PATH],
1466 [specify directory for the installed GMP library])])
1469 if test "x$with_gmp" != x; then
1470 gmplibs="-L$with_gmp/lib $gmplibs"
1471 gmpinc="-I$with_gmp/include $gmpinc"
1472 fi
1473 if test "x$with_gmp_include" != x; then
1474 gmpinc="-I$with_gmp_include $gmpinc"
1475 fi
1476 if test "x$with_gmp_lib" != x; then
1477 gmplibs="-L$with_gmp_lib $gmplibs"
1478 fi
1479 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1480 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1481 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1482 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1483 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1484 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1485 # Do not test the gmp version. Assume that it is sufficient, since
1486 # it is in the source tree, and the library has not been built yet
1487 # but it would be included on the link line in the version check below
1488 # hence making the test fail.
1489 have_gmp=yes
1490 fi
1492 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1493 have_gmp=yes
1494 saved_CFLAGS="$CFLAGS"
1495 CFLAGS="$CFLAGS $gmpinc"
1496 # Check for the recommended and required versions of GMP.
1497 AC_MSG_CHECKING([for the correct version of gmp.h])
1498 AC_TRY_COMPILE([#include "gmp.h"],[
1499 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1500 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1501 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1502 choke me
1503 #endif
1504 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1505 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1506 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1507 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1508 choke me
1509 #endif
1510 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1511 [AC_MSG_RESULT([no]); have_gmp=no])
1513 # If we have GMP, check the MPFR version.
1514 if test x"$have_gmp" = xyes; then
1515 # Check for the recommended and required versions of MPFR.
1516 AC_MSG_CHECKING([for the correct version of mpfr.h])
1517 AC_TRY_COMPILE([#include <gmp.h>
1518 #include <mpfr.h>],[
1519 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1520 choke me
1521 #endif
1522 ], [AC_TRY_COMPILE([#include <gmp.h>
1523 #include <mpfr.h>],[
1524 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1525 choke me
1526 #endif
1527 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1528 [AC_MSG_RESULT([no]); have_gmp=no])
1529 fi
1531 # Check for the MPC header version.
1532 if test x"$have_gmp" = xyes ; then
1533 # Check for the recommended and required versions of MPC.
1534 AC_MSG_CHECKING([for the correct version of mpc.h])
1535 AC_TRY_COMPILE([#include <mpc.h>],[
1536 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1537 choke me
1538 #endif
1539 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1540 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1541 choke me
1542 #endif
1543 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1544 [AC_MSG_RESULT([no]); have_gmp=no])
1545 fi
1547 # Now check the MPFR library.
1548 if test x"$have_gmp" = xyes; then
1549 saved_LIBS="$LIBS"
1550 LIBS="$LIBS $gmplibs"
1551 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1552 AC_TRY_LINK([#include <mpc.h>],[
1553 mpfr_t n;
1554 mpfr_t x;
1555 mpc_t c;
1556 int t;
1557 mpfr_init (n);
1558 mpfr_init (x);
1559 mpfr_atan2 (n, n, x, GMP_RNDN);
1560 mpfr_erfc (n, x, GMP_RNDN);
1561 mpfr_subnormalize (x, t, GMP_RNDN);
1562 mpfr_clear(n);
1563 mpfr_clear(x);
1564 mpc_init2 (c, 53);
1565 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1566 mpc_cosh (c, c, MPC_RNDNN);
1567 mpc_pow (c, c, c, MPC_RNDNN);
1568 mpc_acosh (c, c, MPC_RNDNN);
1569 mpc_clear (c);
1570 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1571 LIBS="$saved_LIBS"
1572 fi
1574 CFLAGS="$saved_CFLAGS"
1576 # The library versions listed in the error message below should match
1577 # the HARD-minimums enforced above.
1578 if test x$have_gmp != xyes; then
1579 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1580 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1581 their locations. Source code for these libraries can be found at
1582 their respective hosting sites as well as at
1583 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1584 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1585 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1586 make sure that you have installed both the libraries and the header
1587 files. They may be located in separate packages.])
1588 fi
1589 fi
1591 # Flags needed for both GMP, MPFR and/or MPC.
1592 AC_SUBST(gmplibs)
1593 AC_SUBST(gmpinc)
1594 AC_SUBST(extra_mpfr_configure_flags)
1595 AC_SUBST(extra_mpc_gmp_configure_flags)
1596 AC_SUBST(extra_mpc_mpfr_configure_flags)
1597 AC_SUBST(extra_isl_gmp_configure_flags)
1599 # Libraries to use for stage1 or when not bootstrapping.
1600 AC_ARG_WITH(stage1-libs,
1601 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1602 [if test "$withval" = "no" -o "$withval" = "yes"; then
1603 stage1_libs=
1604 else
1605 stage1_libs=$withval
1606 fi],
1607 [stage1_libs=])
1608 AC_SUBST(stage1_libs)
1610 # Linker flags to use for stage1 or when not bootstrapping.
1611 AC_ARG_WITH(stage1-ldflags,
1612 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1613 [if test "$withval" = "no" -o "$withval" = "yes"; then
1614 stage1_ldflags=
1615 else
1616 stage1_ldflags=$withval
1617 fi],
1618 [stage1_ldflags=
1619 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1620 # if supported. But if the user explicitly specified the libraries to use,
1621 # trust that they are doing what they want.
1622 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1623 stage1_ldflags="-static-libstdc++ -static-libgcc"
1624 fi])
1625 AC_SUBST(stage1_ldflags)
1627 # Libraries to use for stage2 and later builds.
1628 AC_ARG_WITH(boot-libs,
1629 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1630 [if test "$withval" = "no" -o "$withval" = "yes"; then
1631 poststage1_libs=
1632 else
1633 poststage1_libs=$withval
1634 fi],
1635 [poststage1_libs=])
1636 AC_SUBST(poststage1_libs)
1638 # Linker flags to use for stage2 and later builds.
1639 AC_ARG_WITH(boot-ldflags,
1640 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1641 [linker flags for stage2 and later])],
1642 [if test "$withval" = "no" -o "$withval" = "yes"; then
1643 poststage1_ldflags=
1644 else
1645 poststage1_ldflags=$withval
1646 fi],
1647 [poststage1_ldflags=
1648 # In stages 2 and 3, default to linking libstdc++ and libgcc
1649 # statically. But if the user explicitly specified the libraries to
1650 # use, trust that they are doing what they want.
1651 if test "$poststage1_libs" = ""; then
1652 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1653 fi])
1654 AC_SUBST(poststage1_ldflags)
1656 # GCC GRAPHITE dependency isl.
1657 # Basic setup is inlined here, actual checks are in config/isl.m4
1659 AC_ARG_WITH(isl,
1660 [AS_HELP_STRING(
1661 [--with-isl=PATH],
1662 [Specify prefix directory for the installed isl package.
1663 Equivalent to --with-isl-include=PATH/include
1664 plus --with-isl-lib=PATH/lib])])
1666 # Treat --without-isl as a request to disable
1667 # GRAPHITE support and skip all following checks.
1668 if test "x$with_isl" != "xno"; then
1669 # Check for isl
1670 dnl Provide configure switches and initialize islinc & isllibs
1671 dnl with user input.
1672 ISL_INIT_FLAGS
1673 dnl The versions of isl that work for Graphite
1674 ISL_CHECK_VERSION()
1675 dnl Only execute fail-action, if isl has been requested.
1676 ISL_IF_FAILED([
1677 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1678 fi
1680 # If the isl check failed, disable builds of in-tree variant of isl
1681 if test "x$with_isl" = xno ||
1682 test "x$gcc_cv_isl" = xno; then
1683 noconfigdirs="$noconfigdirs isl"
1684 islinc=
1685 fi
1687 AC_SUBST(isllibs)
1688 AC_SUBST(islinc)
1690 # Check for LTO support.
1691 AC_ARG_ENABLE(lto,
1692 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1693 enable_lto=$enableval,
1694 enable_lto=yes; default_enable_lto=yes)
1696 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1697 build_lto_plugin=yes
1698 ],[if test x"$default_enable_lto" = x"yes" ; then
1699 case $target in
1700 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1701 # On other non-ELF platforms, LTO has yet to be validated.
1702 *) enable_lto=no ;;
1703 esac
1704 else
1705 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1706 # It would also be nice to check the binutils support, but we don't
1707 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1708 # warn during gcc/ subconfigure; unless you're bootstrapping with
1709 # -flto it won't be needed until after installation anyway.
1710 case $target in
1711 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1712 *) if test x"$enable_lto" = x"yes"; then
1713 AC_MSG_ERROR([LTO support is not enabled for this target.])
1714 fi
1715 ;;
1716 esac
1717 fi
1718 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1719 # Build it unless LTO was explicitly disabled.
1720 case $target in
1721 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1722 *) ;;
1723 esac
1724 ])
1726 AC_ARG_ENABLE(linker-plugin-configure-flags,
1727 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1728 [additional flags for configuring linker plugins @<:@none@:>@])],
1729 extra_linker_plugin_configure_flags=$enableval,
1730 extra_linker_plugin_configure_flags=)
1731 AC_SUBST(extra_linker_plugin_configure_flags)
1732 AC_ARG_ENABLE(linker-plugin-flags,
1733 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1734 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1735 extra_linker_plugin_flags=$enableval,
1736 extra_linker_plugin_flags=)
1737 AC_SUBST(extra_linker_plugin_flags)
1739 # Enable --enable-host-shared.
1740 # Checked early to determine whether jit is an 'all' language
1741 AC_ARG_ENABLE(host-shared,
1742 [AS_HELP_STRING([--enable-host-shared],
1743 [build host code as shared libraries])],
1744 [host_shared=$enableval], [host_shared=no])
1745 AC_SUBST(host_shared)
1747 # By default, C and C++ are the only stage 1 languages.
1748 stage1_languages=,c,
1750 # Target libraries that we bootstrap.
1751 bootstrap_target_libs=,target-libgcc,
1753 # Figure out what language subdirectories are present.
1754 # Look if the user specified --enable-languages="..."; if not, use
1755 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1756 # go away some day.
1757 # NB: embedded tabs in this IF block -- do not untabify
1758 if test -d ${srcdir}/gcc; then
1759 if test x"${enable_languages+set}" != xset; then
1760 if test x"${LANGUAGES+set}" = xset; then
1761 enable_languages="${LANGUAGES}"
1762 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1763 else
1764 enable_languages=default
1765 fi
1766 else
1767 if test x"${enable_languages}" = x ||
1768 test x"${enable_languages}" = xyes;
1769 then
1770 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1771 exit 1
1772 fi
1773 fi
1774 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1776 # 'f95' is the old name for the 'fortran' language. We issue a warning
1777 # and make the substitution.
1778 case ,${enable_languages}, in
1779 *,f95,*)
1780 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1781 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1782 ;;
1783 esac
1785 # If bootstrapping, C++ must be enabled.
1786 case ",$enable_languages,:$enable_bootstrap" in
1787 *,c++,*:*) ;;
1788 *:yes)
1789 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1790 enable_languages="${enable_languages},c++"
1791 else
1792 AC_MSG_ERROR([bootstrapping requires c++ sources])
1793 fi
1794 ;;
1795 esac
1797 # First scan to see if an enabled language requires some other language.
1798 # We assume that a given config-lang.in will list all the language
1799 # front ends it requires, even if some are required indirectly.
1800 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1801 case ${lang_frag} in
1802 ..) ;;
1803 # The odd quoting in the next line works around
1804 # an apparent bug in bash 1.12 on linux.
1805 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1806 *)
1807 # From the config-lang.in, get $language, $lang_requires, and
1808 # $lang_requires_boot_languages.
1809 language=
1810 lang_requires=
1811 lang_requires_boot_languages=
1812 # set srcdir during sourcing lang_frag to the gcc dir.
1813 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1814 # polutes this shell
1815 saved_srcdir=${srcdir}
1816 srcdir=${srcdir}/gcc . ${lang_frag}
1817 srcdir=${saved_srcdir}
1818 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1819 case ,${enable_languages}, in
1820 *,$other,*) ;;
1821 *,default,*) ;;
1822 *,all,*) ;;
1823 *,$language,*)
1824 echo " \`$other' language required by \`$language'; enabling" 1>&2
1825 enable_languages="${enable_languages},${other}"
1826 ;;
1827 esac
1828 done
1829 for other in ${lang_requires_boot_languages} ; do
1830 if test "$other" != "c"; then
1831 case ,${enable_stage1_languages}, in
1832 *,$other,*) ;;
1833 *,default,*) ;;
1834 *,all,*) ;;
1835 *)
1836 case ,${enable_languages}, in
1837 *,$language,*)
1838 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1839 enable_stage1_languages="$enable_stage1_languages,${other}"
1840 ;;
1841 esac
1842 ;;
1843 esac
1844 fi
1845 done
1846 ;;
1847 esac
1848 done
1850 new_enable_languages=,c,
1852 # If LTO is enabled, add the LTO front end.
1853 if test "$enable_lto" = "yes" ; then
1854 case ,${enable_languages}, in
1855 *,lto,*) ;;
1856 *) enable_languages="${enable_languages},lto" ;;
1857 esac
1858 if test "${build_lto_plugin}" = "yes" ; then
1859 configdirs="$configdirs lto-plugin"
1860 fi
1861 fi
1863 # If we're building an offloading compiler, add the LTO front end.
1864 if test x"$enable_as_accelerator_for" != x ; then
1865 case ,${enable_languages}, in
1866 *,lto,*) ;;
1867 *) enable_languages="${enable_languages},lto" ;;
1868 esac
1869 fi
1871 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
1872 potential_languages=,c,
1874 enabled_target_libs=
1875 disabled_target_libs=
1877 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1878 case ${lang_frag} in
1879 ..) ;;
1880 # The odd quoting in the next line works around
1881 # an apparent bug in bash 1.12 on linux.
1882 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1883 *)
1884 # From the config-lang.in, get $language, $target_libs,
1885 # $lang_dirs, $boot_language, and $build_by_default
1886 language=
1887 target_libs=
1888 lang_dirs=
1889 subdir_requires=
1890 boot_language=no
1891 build_by_default=yes
1892 # set srcdir during sourcing. See above about save & restore
1893 saved_srcdir=${srcdir}
1894 srcdir=${srcdir}/gcc . ${lang_frag}
1895 srcdir=${saved_srcdir}
1896 if test x${language} = x; then
1897 echo "${lang_frag} doesn't set \$language." 1>&2
1898 exit 1
1899 fi
1901 if test "$language" = "c++"; then
1902 boot_language=yes
1903 fi
1905 add_this_lang=no
1906 # C is always enabled, so no need to add it again
1907 if test "$language" != "c"; then
1908 case ,${enable_languages}, in
1909 *,${language},*)
1910 # Language was explicitly selected; include it
1911 add_this_lang=yes
1912 ;;
1913 *,all,*)
1914 # All languages are enabled
1915 add_this_lang=all
1916 ;;
1917 *,default,*)
1918 # 'default' was selected, select it if it is a default language
1919 add_this_lang=${build_by_default}
1920 ;;
1921 esac
1922 fi
1924 # Disable languages that need other directories if these aren't available.
1925 for i in $subdir_requires; do
1926 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1927 case ${add_this_lang} in
1928 yes)
1929 # Specifically requested language; tell them.
1930 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1931 ;;
1932 all)
1933 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
1934 add_this_lang=unsupported
1935 ;;
1936 *)
1937 # Silently disable.
1938 add_this_lang=unsupported
1939 ;;
1940 esac
1941 done
1943 # Disable Ada if no preexisting GNAT is available.
1944 case ${add_this_lang}:${language}:${have_gnat} in
1945 yes:ada:no)
1946 # Specifically requested language; tell them.
1947 AC_MSG_ERROR([GNAT is required to build $language])
1948 ;;
1949 all:ada:no)
1950 AC_MSG_WARN([GNAT is required to build $language])
1951 add_this_lang=unsupported
1952 ;;
1953 *:ada:no)
1954 # Silently disable.
1955 add_this_lang=unsupported
1956 ;;
1957 esac
1959 # Disable jit if -enable-host-shared not specified
1960 case ${add_this_lang}:${language}:${host_shared} in
1961 yes:jit:no)
1962 # PR jit/64780: explicitly specify --enable-host-shared
1963 AC_MSG_ERROR([
1964 Enabling language "jit" requires --enable-host-shared.
1966 --enable-host-shared typically slows the rest of the compiler down by
1967 a few %, so you must explicitly enable it.
1969 If you want to build both the jit and the regular compiler, it is often
1970 best to do this via two separate configure/builds, in separate
1971 directories, to avoid imposing the performance cost of
1972 --enable-host-shared on the regular compiler.])
1973 ;;
1974 all:jit:no)
1975 AC_MSG_WARN([--enable-host-shared required to build $language])
1976 add_this_lang=unsupported
1977 ;;
1978 *:jit:no)
1979 # Silently disable.
1980 add_this_lang=unsupported
1981 ;;
1982 esac
1984 # Disable a language that is unsupported by the target.
1985 case "${add_this_lang}: $unsupported_languages " in
1986 no:*) ;;
1987 unsupported:*) ;;
1988 *:*" $language "*)
1989 AC_MSG_WARN([${language} not supported for this target])
1990 add_this_lang=unsupported
1991 ;;
1992 esac
1994 case $add_this_lang in
1995 unsupported)
1996 # Remove language-dependent dirs.
1997 disabled_target_libs="$disabled_target_libs $target_libs"
1998 noconfigdirs="$noconfigdirs $lang_dirs"
1999 ;;
2000 no)
2001 # Remove language-dependent dirs; still show language as supported.
2002 disabled_target_libs="$disabled_target_libs $target_libs"
2003 noconfigdirs="$noconfigdirs $lang_dirs"
2004 potential_languages="${potential_languages}${language},"
2005 ;;
2006 all|yes)
2007 new_enable_languages="${new_enable_languages}${language},"
2008 potential_languages="${potential_languages}${language},"
2009 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2010 enabled_target_libs="$enabled_target_libs $target_libs"
2011 case "${boot_language}:,$enable_stage1_languages," in
2012 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2013 # Add to (comma-separated) list of stage 1 languages.
2014 case ",$stage1_languages," in
2015 *,$language,* | ,yes, | ,all,) ;;
2016 *) stage1_languages="${stage1_languages}${language}," ;;
2017 esac
2018 # We need to bootstrap any supporting libraries.
2019 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2020 ;;
2021 esac
2022 ;;
2023 esac
2024 ;;
2025 esac
2026 done
2028 # Add target libraries which are only needed for disabled languages
2029 # to noconfigdirs.
2030 if test -n "$disabled_target_libs"; then
2031 for dir in $disabled_target_libs; do
2032 case " $enabled_target_libs " in
2033 *" ${dir} "*) ;;
2034 *) noconfigdirs="$noconfigdirs $dir" ;;
2035 esac
2036 done
2037 fi
2039 AC_ARG_ENABLE(stage1-languages,
2040 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2041 [choose additional languages to build during
2042 stage1. Mostly useful for compiler development])],
2043 [case ,${enable_stage1_languages}, in
2044 ,no,|,,)
2045 # Set it to something that will have no effect in the loop below
2046 enable_stage1_languages=c ;;
2047 ,yes,)
2048 enable_stage1_languages=`echo $new_enable_languages | \
2049 sed -e "s/^,//" -e "s/,$//" ` ;;
2050 *,all,*)
2051 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2052 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2053 esac
2055 # Add "good" languages from enable_stage1_languages to stage1_languages,
2056 # while "bad" languages go in missing_languages. Leave no duplicates.
2057 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2058 case $potential_languages in
2059 *,$i,*)
2060 case $stage1_languages in
2061 *,$i,*) ;;
2062 *) stage1_languages="$stage1_languages$i," ;;
2063 esac ;;
2064 *)
2065 case $missing_languages in
2066 *,$i,*) ;;
2067 *) missing_languages="$missing_languages$i," ;;
2068 esac ;;
2069 esac
2070 done])
2072 # Remove leading/trailing commas that were added for simplicity
2073 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2074 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2075 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2076 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2078 if test "x$missing_languages" != x; then
2079 AC_MSG_ERROR([
2080 The following requested languages could not be built: ${missing_languages}
2081 Supported languages are: ${potential_languages}])
2082 fi
2083 if test "x$new_enable_languages" != "x$enable_languages"; then
2084 echo The following languages will be built: ${new_enable_languages}
2085 enable_languages="$new_enable_languages"
2086 fi
2088 AC_SUBST(stage1_languages)
2089 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2090 fi
2092 # Handle --disable-<component> generically.
2093 for dir in $configdirs $build_configdirs $target_configdirs ; do
2094 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2095 varname=`echo $dirname | sed -e s/+/_/g`
2096 if eval test x\${enable_${varname}} "=" xno ; then
2097 noconfigdirs="$noconfigdirs $dir"
2098 fi
2099 done
2101 # Check for Boehm's garbage collector
2102 AC_ARG_ENABLE(objc-gc,
2103 [AS_HELP_STRING([--enable-objc-gc],
2104 [enable use of Boehm's garbage collector with the
2105 GNU Objective-C runtime])])
2106 AC_ARG_WITH([target-bdw-gc],
2107 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2108 [specify prefix directory for installed bdw-gc package.
2109 Equivalent to --with-target-bdw-gc-include=PATH/include
2110 plus --with-target-bdw-gc-lib=PATH/lib])])
2111 AC_ARG_WITH([target-bdw-gc-include],
2112 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2113 [specify directories for installed bdw-gc include files])])
2114 AC_ARG_WITH([target-bdw-gc-lib],
2115 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2116 [specify directories for installed bdw-gc library])])
2118 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2119 AC_MSG_CHECKING([for bdw garbage collector])
2120 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2121 dnl no bdw-gw options, assume default locations
2122 AC_MSG_RESULT([using bdw-gc in default locations])
2123 else
2124 dnl bdw-gw options, first error checking, complete checking in libobjc
2125 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2126 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2127 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2128 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2129 else
2130 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2131 fi
2132 fi
2133 esac
2135 # Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2136 case ,${enable_languages}, in
2137 *,c++,*)
2138 # Disable libitm, libsanitizer if we're not building libstdc++
2139 case "${noconfigdirs}" in
2140 *target-libstdc++-v3*)
2141 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2142 ;;
2143 *) ;;
2144 esac
2145 ;;
2146 *)
2147 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2148 ;;
2149 esac
2151 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2152 # $build_configdirs and $target_configdirs.
2153 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2155 notsupp=""
2156 for dir in . $skipdirs $noconfigdirs ; do
2157 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2158 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2159 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2160 if test -r $srcdir/$dirname/configure ; then
2161 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2162 true
2163 else
2164 notsupp="$notsupp $dir"
2165 fi
2166 fi
2167 fi
2168 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2169 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2170 if test -r $srcdir/$dirname/configure ; then
2171 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2172 true
2173 else
2174 notsupp="$notsupp $dir"
2175 fi
2176 fi
2177 fi
2178 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2179 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2180 if test -r $srcdir/$dirname/configure ; then
2181 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2182 true
2183 else
2184 notsupp="$notsupp $dir"
2185 fi
2186 fi
2187 fi
2188 done
2190 # Quietly strip out all directories which aren't configurable in this tree.
2191 # This relies on all configurable subdirectories being autoconfiscated, which
2192 # is now the case.
2193 build_configdirs_all="$build_configdirs"
2194 build_configdirs=
2195 for i in ${build_configdirs_all} ; do
2196 j=`echo $i | sed -e s/build-//g`
2197 if test -f ${srcdir}/$j/configure ; then
2198 build_configdirs="${build_configdirs} $i"
2199 fi
2200 done
2202 configdirs_all="$configdirs"
2203 configdirs=
2204 for i in ${configdirs_all} ; do
2205 if test -f ${srcdir}/$i/configure ; then
2206 configdirs="${configdirs} $i"
2207 fi
2208 done
2210 target_configdirs_all="$target_configdirs"
2211 target_configdirs=
2212 for i in ${target_configdirs_all} ; do
2213 j=`echo $i | sed -e s/target-//g`
2214 if test -f ${srcdir}/$j/configure ; then
2215 target_configdirs="${target_configdirs} $i"
2216 fi
2217 done
2219 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2220 # so we have to add it after the preceding checks.
2221 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2222 then
2223 case " $configdirs " in
2224 *" libiberty "*)
2225 # If we can build libiberty, we can also build libiberty-linker-plugin.
2226 configdirs="$configdirs libiberty-linker-plugin"
2227 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2228 --with-libiberty=../libiberty-linker-plugin";;
2229 *)
2230 AC_MSG_ERROR([libiberty missing]);;
2231 esac
2232 fi
2234 # Sometimes we have special requirements for the host libiberty.
2235 extra_host_libiberty_configure_flags=
2236 extra_host_zlib_configure_flags=
2237 case " $configdirs " in
2238 *" lto-plugin "* | *" libcc1 "*)
2239 # When these are to be built as shared libraries, the same applies to
2240 # libiberty.
2241 extra_host_libiberty_configure_flags=--enable-shared
2242 ;;
2243 *" bfd "*)
2244 # When bfd is to be built as a shared library, the same applies to
2245 # zlib.
2246 if test "$enable_shared" = "yes"; then
2247 extra_host_zlib_configure_flags=--enable-host-shared
2248 fi
2249 ;;
2250 esac
2251 AC_SUBST(extra_host_libiberty_configure_flags)
2252 AC_SUBST(extra_host_zlib_configure_flags)
2254 # Produce a warning message for the subdirs we can't configure.
2255 # This isn't especially interesting in the Cygnus tree, but in the individual
2256 # FSF releases, it's important to let people know when their machine isn't
2257 # supported by the one or two programs in a package.
2259 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2260 # If $appdirs is non-empty, at least one of those directories must still
2261 # be configured, or we error out. (E.g., if the gas release supports a
2262 # specified target in some subdirs but not the gas subdir, we shouldn't
2263 # pretend that all is well.)
2264 if test -n "$appdirs" ; then
2265 for dir in $appdirs ; do
2266 if test -r $dir/Makefile.in ; then
2267 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2268 appdirs=""
2269 break
2270 fi
2271 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2272 appdirs=""
2273 break
2274 fi
2275 fi
2276 done
2277 if test -n "$appdirs" ; then
2278 echo "*** This configuration is not supported by this package." 1>&2
2279 exit 1
2280 fi
2281 fi
2282 # Okay, some application will build, or we don't care to check. Still
2283 # notify of subdirs not getting built.
2284 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2285 echo " ${notsupp}" 1>&2
2286 echo " (Any other directories should still work fine.)" 1>&2
2287 fi
2289 case "$host" in
2290 *msdosdjgpp*)
2291 enable_gdbtk=no ;;
2292 esac
2294 # To find our prefix, in gcc_cv_tool_prefix.
2295 ACX_TOOL_DIRS
2297 copy_dirs=
2299 AC_ARG_WITH([build-sysroot],
2300 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2301 [use sysroot as the system root during the build])],
2302 [if test x"$withval" != x ; then
2303 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2304 fi],
2305 [SYSROOT_CFLAGS_FOR_TARGET=])
2306 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2308 AC_ARG_WITH([debug-prefix-map],
2309 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2310 [map A to B, C to D ... in debug information])],
2311 [if test x"$withval" != x; then
2312 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2313 for debug_map in $withval; do
2314 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2315 done
2316 fi],
2317 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2318 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2320 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2321 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2322 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2323 # We want to ensure that TARGET libraries (which we know are built with
2324 # gcc) are built with "-O2 -g", so include those options when setting
2325 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2326 if test "x$CFLAGS_FOR_TARGET" = x; then
2327 if test "x${is_cross_compiler}" = xyes; then
2328 CFLAGS_FOR_TARGET="-g -O2"
2329 else
2330 CFLAGS_FOR_TARGET=$CFLAGS
2331 case " $CFLAGS " in
2332 *" -O2 "*) ;;
2333 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2334 esac
2335 case " $CFLAGS " in
2336 *" -g "* | *" -g3 "*) ;;
2337 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2338 esac
2339 fi
2340 fi
2341 AC_SUBST(CFLAGS_FOR_TARGET)
2343 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2344 if test "x${is_cross_compiler}" = xyes; then
2345 CXXFLAGS_FOR_TARGET="-g -O2"
2346 else
2347 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2348 case " $CXXFLAGS " in
2349 *" -O2 "*) ;;
2350 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2351 esac
2352 case " $CXXFLAGS " in
2353 *" -g "* | *" -g3 "*) ;;
2354 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2355 esac
2356 fi
2357 fi
2358 AC_SUBST(CXXFLAGS_FOR_TARGET)
2360 AC_SUBST(LDFLAGS_FOR_TARGET)
2362 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2363 # the named directory are copied to $(tooldir)/sys-include.
2364 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2365 if test x${is_cross_compiler} = xno ; then
2366 echo 1>&2 '***' --with-headers is only supported when cross compiling
2367 exit 1
2368 fi
2369 if test x"${with_headers}" != xyes ; then
2370 x=${gcc_cv_tool_prefix}
2371 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2372 fi
2373 fi
2375 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2376 # the name directories are copied to $(tooldir)/lib. Multiple directories
2377 # are permitted.
2378 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2379 if test x${is_cross_compiler} = xno ; then
2380 echo 1>&2 '***' --with-libs is only supported when cross compiling
2381 exit 1
2382 fi
2383 if test x"${with_libs}" != xyes ; then
2384 # Copy the libraries in reverse order, so that files in the first named
2385 # library override files in subsequent libraries.
2386 x=${gcc_cv_tool_prefix}
2387 for l in ${with_libs}; do
2388 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2389 done
2390 fi
2391 fi
2393 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2394 #
2395 # This is done by determining whether or not the appropriate directory
2396 # is available, and by checking whether or not specific configurations
2397 # have requested that this magic not happen.
2398 #
2399 # The command line options always override the explicit settings in
2400 # configure.ac, and the settings in configure.ac override this magic.
2401 #
2402 # If the default for a toolchain is to use GNU as and ld, and you don't
2403 # want to do that, then you should use the --without-gnu-as and
2404 # --without-gnu-ld options for the configure script. Similarly, if
2405 # the default is to use the included zlib and you don't want to do that,
2406 # you should use the --with-system-zlib option for the configure script.
2408 if test x${use_gnu_as} = x &&
2409 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2410 with_gnu_as=yes
2411 extra_host_args="$extra_host_args --with-gnu-as"
2412 fi
2414 if test x${use_gnu_ld} = x &&
2415 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2416 with_gnu_ld=yes
2417 extra_host_args="$extra_host_args --with-gnu-ld"
2418 fi
2420 if test x${use_included_zlib} = x &&
2421 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2422 :
2423 else
2424 with_system_zlib=yes
2425 extra_host_args="$extra_host_args --with-system-zlib"
2426 fi
2428 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2429 # can detect this case.
2431 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2432 with_newlib=yes
2433 extra_host_args="$extra_host_args --with-newlib"
2434 fi
2436 # Handle ${copy_dirs}
2437 set fnord ${copy_dirs}
2438 shift
2439 while test $# != 0 ; do
2440 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2441 :
2442 else
2443 echo Copying $1 to $2
2445 # Use the install script to create the directory and all required
2446 # parent directories.
2447 if test -d $2 ; then
2448 :
2449 else
2450 echo >config.temp
2451 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2452 fi
2454 # Copy the directory, assuming we have tar.
2455 # FIXME: Should we use B in the second tar? Not all systems support it.
2456 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2458 # It is the responsibility of the user to correctly adjust all
2459 # symlinks. If somebody can figure out how to handle them correctly
2460 # here, feel free to add the code.
2462 echo $1 > $2/COPIED
2463 fi
2464 shift; shift
2465 done
2467 # Determine a target-dependent exec_prefix that the installed
2468 # gcc will search in. Keep this list sorted by triplet, with
2469 # the *-*-osname triplets last.
2470 md_exec_prefix=
2471 case "${target}" in
2472 i[[34567]]86-pc-msdosdjgpp*)
2473 md_exec_prefix=/dev/env/DJDIR/bin
2474 ;;
2475 *-*-hpux* | \
2476 *-*-nto-qnx* | \
2477 *-*-solaris2*)
2478 md_exec_prefix=/usr/ccs/bin
2479 ;;
2480 esac
2482 extra_arflags_for_target=
2483 extra_nmflags_for_target=
2484 extra_ranlibflags_for_target=
2485 target_makefile_frag=/dev/null
2486 case "${target}" in
2487 spu-*-*)
2488 target_makefile_frag="config/mt-spu"
2489 ;;
2490 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2491 target_makefile_frag="config/mt-sde"
2492 ;;
2493 mipsisa*-*-elfoabi*)
2494 target_makefile_frag="config/mt-mips-elfoabi"
2495 ;;
2496 mips*-*-*linux* | mips*-*-gnu*)
2497 target_makefile_frag="config/mt-mips-gnu"
2498 ;;
2499 nios2-*-elf*)
2500 target_makefile_frag="config/mt-nios2-elf"
2501 ;;
2502 *-*-linux-android*)
2503 target_makefile_frag="config/mt-android"
2504 ;;
2505 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2506 target_makefile_frag="config/mt-gnu"
2507 ;;
2508 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2509 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2510 # commands to handle both 32-bit and 64-bit objects. These flags are
2511 # harmless if we're using GNU nm or ar.
2512 extra_arflags_for_target=" -X32_64"
2513 extra_nmflags_for_target=" -B -X32_64"
2514 ;;
2515 esac
2517 alphaieee_frag=/dev/null
2518 case $target in
2519 alpha*-*-*)
2520 # This just makes sure to use the -mieee option to build target libs.
2521 # This should probably be set individually by each library.
2522 alphaieee_frag="config/mt-alphaieee"
2523 ;;
2524 esac
2526 # If --enable-target-optspace always use -Os instead of -O2 to build
2527 # the target libraries, similarly if it is not specified, use -Os
2528 # on selected platforms.
2529 ospace_frag=/dev/null
2530 case "${enable_target_optspace}:${target}" in
2531 yes:*)
2532 ospace_frag="config/mt-ospace"
2533 ;;
2534 :d30v-*)
2535 ospace_frag="config/mt-d30v"
2536 ;;
2537 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2538 ospace_frag="config/mt-ospace"
2539 ;;
2540 no:* | :*)
2541 ;;
2542 *)
2543 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2544 ;;
2545 esac
2547 # Some systems (e.g., one of the i386-aix systems the gas testers are
2548 # using) don't handle "\$" correctly, so don't use it here.
2549 tooldir='${exec_prefix}'/${target_noncanonical}
2550 build_tooldir=${tooldir}
2552 # Create a .gdbinit file which runs the one in srcdir
2553 # and tells GDB to look there for source files.
2555 if test -r ${srcdir}/.gdbinit ; then
2556 case ${srcdir} in
2557 .) ;;
2558 *) cat > ./.gdbinit <<EOF
2559 # ${NO_EDIT}
2560 dir ${srcdir}
2561 dir .
2562 source ${srcdir}/.gdbinit
2563 EOF
2564 ;;
2565 esac
2566 fi
2568 # Make sure that the compiler is able to generate an executable. If it
2569 # can't, we are probably in trouble. We don't care whether we can run the
2570 # executable--we might be using a cross compiler--we only care whether it
2571 # can be created. At this point the main configure script has set CC.
2572 we_are_ok=no
2573 echo "int main () { return 0; }" > conftest.c
2574 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2575 if test $? = 0 ; then
2576 if test -s conftest || test -s conftest.exe ; then
2577 we_are_ok=yes
2578 fi
2579 fi
2580 case $we_are_ok in
2581 no)
2582 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2583 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2584 rm -f conftest*
2585 exit 1
2586 ;;
2587 esac
2588 rm -f conftest*
2590 # Decide which environment variable is used to find dynamic libraries.
2591 case "${host}" in
2592 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2593 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2594 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2595 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2596 esac
2598 # On systems where the dynamic library environment variable is PATH,
2599 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2600 # built executables to PATH.
2601 if test "$RPATH_ENVVAR" = PATH; then
2602 GCC_SHLIB_SUBDIR=/shlib
2603 else
2604 GCC_SHLIB_SUBDIR=
2605 fi
2607 # Adjust the toplevel makefile according to whether bootstrap was selected.
2608 case $enable_bootstrap in
2609 yes)
2610 bootstrap_suffix=bootstrap
2611 BUILD_CONFIG=bootstrap-debug
2612 ;;
2613 no)
2614 bootstrap_suffix=no-bootstrap
2615 BUILD_CONFIG=
2616 ;;
2617 esac
2619 AC_MSG_CHECKING(for default BUILD_CONFIG)
2621 AC_ARG_WITH([build-config],
2622 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2623 [use config/NAME.mk build configuration])],
2624 [case $with_build_config in
2625 yes) with_build_config= ;;
2626 no) with_build_config= BUILD_CONFIG= ;;
2627 esac])
2629 if test "x${with_build_config}" != x; then
2630 BUILD_CONFIG=$with_build_config
2631 else
2632 case $BUILD_CONFIG in
2633 bootstrap-debug)
2634 if echo "int f (void) { return 0; }" > conftest.c &&
2635 ${CC} -c conftest.c &&
2636 mv conftest.o conftest.o.g0 &&
2637 ${CC} -c -g conftest.c &&
2638 mv conftest.o conftest.o.g &&
2639 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2640 :
2641 else
2642 BUILD_CONFIG=
2643 fi
2644 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2645 ;;
2646 esac
2647 fi
2648 AC_MSG_RESULT($BUILD_CONFIG)
2649 AC_SUBST(BUILD_CONFIG)
2651 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2652 AC_MSG_CHECKING([for --enable-vtable-verify])
2653 AC_ARG_ENABLE(vtable-verify,
2654 [AS_HELP_STRING([--enable-vtable-verify],
2655 [Enable vtable verification feature])],
2656 [case "$enableval" in
2657 yes) enable_vtable_verify=yes ;;
2658 no) enable_vtable_verify=no ;;
2659 *) enable_vtable_verify=no;;
2660 esac],
2661 [enable_vtable_verify=no])
2662 AC_MSG_RESULT($enable_vtable_verify)
2664 # Record target_configdirs and the configure arguments for target and
2665 # build configuration in Makefile.
2666 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2667 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2668 bootstrap_fixincludes=no
2670 # If we are building libgomp, bootstrap it.
2671 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2672 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2673 fi
2675 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2676 # or bootstrap-ubsan, bootstrap it.
2677 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2678 case "$BUILD_CONFIG" in
2679 *bootstrap-asan* | *bootstrap-ubsan* )
2680 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2681 bootstrap_fixincludes=yes
2682 ;;
2683 esac
2684 fi
2686 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2687 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2688 test "$enable_vtable_verify" != no; then
2689 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2690 fi
2692 # If we are building libmpx and $BUILD_CONFIG contains bootstrap-mpx,
2693 # bootstrap it.
2694 if echo " ${target_configdirs} " | grep " libmpx " > /dev/null 2>&1; then
2695 case "$BUILD_CONFIG" in
2696 *bootstrap-mpx* )
2697 bootstrap_target_libs=${bootstrap_target_libs}target-libmpx,
2698 ;;
2699 esac
2700 fi
2702 # Determine whether gdb needs tk/tcl or not.
2703 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2704 # and in that case we want gdb to be built without tk. Ugh!
2705 # In fact I believe gdb is the *only* package directly dependent on tk,
2706 # so we should be able to put the 'maybe's in unconditionally and
2707 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2708 # 100% sure that that's safe though.
2710 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2711 case "$enable_gdbtk" in
2712 no)
2713 GDB_TK="" ;;
2714 yes)
2715 GDB_TK="${gdb_tk}" ;;
2716 *)
2717 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2718 # distro. Eventually someone will fix this and move Insight, nee
2719 # gdbtk to a separate directory.
2720 if test -d ${srcdir}/gdb/gdbtk ; then
2721 GDB_TK="${gdb_tk}"
2722 else
2723 GDB_TK=""
2724 fi
2725 ;;
2726 esac
2727 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2728 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2730 # Strip out unwanted targets.
2732 # While at that, we remove Makefiles if we were started for recursive
2733 # configuration, so that the top-level Makefile reconfigures them,
2734 # like we used to do when configure itself was recursive.
2736 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2737 # but now we're fixing up the Makefile ourselves with the additional
2738 # commands passed to AC_CONFIG_FILES. Use separate variables
2739 # extrasub-{build,host,target} not because there is any reason to split
2740 # the substitutions up that way, but only to remain below the limit of
2741 # 99 commands in a script, for HP-UX sed.
2742 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2744 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2745 yes:yes:*\ gold\ *:*,c++,*) ;;
2746 yes:yes:*\ gold\ *:*)
2747 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2748 ;;
2749 esac
2751 extrasub_build=
2752 for module in ${build_configdirs} ; do
2753 if test -z "${no_recursion}" \
2754 && test -f ${build_subdir}/${module}/Makefile; then
2755 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2756 rm -f ${build_subdir}/${module}/Makefile
2757 fi
2758 extrasub_build="$extrasub_build
2759 /^@if build-$module\$/d
2760 /^@endif build-$module\$/d
2761 /^@if build-$module-$bootstrap_suffix\$/d
2762 /^@endif build-$module-$bootstrap_suffix\$/d"
2763 done
2764 extrasub_host=
2765 for module in ${configdirs} ; do
2766 if test -z "${no_recursion}"; then
2767 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2768 if test -f ${file}; then
2769 echo 1>&2 "*** removing ${file} to force reconfigure"
2770 rm -f ${file}
2771 fi
2772 done
2773 fi
2774 case ${module},${bootstrap_fixincludes} in
2775 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2776 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2777 esac
2778 extrasub_host="$extrasub_host
2779 /^@if $module\$/d
2780 /^@endif $module\$/d
2781 /^@if $module-$host_bootstrap_suffix\$/d
2782 /^@endif $module-$host_bootstrap_suffix\$/d"
2783 done
2784 extrasub_target=
2785 for module in ${target_configdirs} ; do
2786 if test -z "${no_recursion}" \
2787 && test -f ${target_subdir}/${module}/Makefile; then
2788 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2789 rm -f ${target_subdir}/${module}/Makefile
2790 fi
2792 # We only bootstrap target libraries listed in bootstrap_target_libs.
2793 case $bootstrap_target_libs in
2794 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2795 *) target_bootstrap_suffix=no-bootstrap ;;
2796 esac
2798 extrasub_target="$extrasub_target
2799 /^@if target-$module\$/d
2800 /^@endif target-$module\$/d
2801 /^@if target-$module-$target_bootstrap_suffix\$/d
2802 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2803 done
2805 # Do the final fixup along with target modules.
2806 extrasub_target="$extrasub_target
2807 /^@if /,/^@endif /d"
2809 # Create the serialization dependencies. This uses a temporary file.
2811 AC_ARG_ENABLE([serial-configure],
2812 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2813 [force sequential configuration of
2814 sub-packages for the host, target or build
2815 machine, or all sub-packages])])
2817 case ${enable_serial_configure} in
2818 yes)
2819 enable_serial_build_configure=yes
2820 enable_serial_host_configure=yes
2821 enable_serial_target_configure=yes
2822 ;;
2823 esac
2825 # These force 'configure's to be done one at a time, to avoid problems
2826 # with contention over a shared config.cache.
2827 rm -f serdep.tmp
2828 echo '# serdep.tmp' > serdep.tmp
2829 olditem=
2830 test "x${enable_serial_build_configure}" = xyes &&
2831 for item in ${build_configdirs} ; do
2832 case ${olditem} in
2833 "") ;;
2834 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2835 esac
2836 olditem=${item}
2837 done
2838 olditem=
2839 test "x${enable_serial_host_configure}" = xyes &&
2840 for item in ${configdirs} ; do
2841 case ${olditem} in
2842 "") ;;
2843 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2844 esac
2845 olditem=${item}
2846 done
2847 olditem=
2848 test "x${enable_serial_target_configure}" = xyes &&
2849 for item in ${target_configdirs} ; do
2850 case ${olditem} in
2851 "") ;;
2852 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2853 esac
2854 olditem=${item}
2855 done
2856 serialization_dependencies=serdep.tmp
2857 AC_SUBST_FILE(serialization_dependencies)
2859 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2860 # target, nonopt, and variable assignments. These are the ones we
2861 # might not want to pass down to subconfigures. The exception being
2862 # --cache-file=/dev/null, which is used to turn off the use of cache
2863 # files altogether, and which should be passed on to subconfigures.
2864 # Also strip program-prefix, program-suffix, and program-transform-name,
2865 # so that we can pass down a consistent program-transform-name.
2866 baseargs=
2867 tbaseargs=
2868 keep_next=no
2869 skip_next=no
2870 eval "set -- $ac_configure_args"
2871 for ac_arg
2872 do
2873 if test X"$skip_next" = X"yes"; then
2874 skip_next=no
2875 continue
2876 fi
2877 if test X"$keep_next" = X"yes"; then
2878 case $ac_arg in
2879 *\'*)
2880 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2881 esac
2882 baseargs="$baseargs '$ac_arg'"
2883 tbaseargs="$tbaseargs '$ac_arg'"
2884 keep_next=no
2885 continue
2886 fi
2888 # Handle separated arguments. Based on the logic generated by
2889 # autoconf 2.59.
2890 case $ac_arg in
2891 *=* | --config-cache | -C | -disable-* | --disable-* \
2892 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2893 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2894 | -with-* | --with-* | -without-* | --without-* | --x)
2895 separate_arg=no
2896 ;;
2897 -*)
2898 separate_arg=yes
2899 ;;
2900 *)
2901 separate_arg=no
2902 ;;
2903 esac
2905 skip_targ=no
2906 case $ac_arg in
2907 changequote(,)
2908 --with-* | --without-*)
2909 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2911 case $libopt in
2912 *[-_]include)
2913 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2914 ;;
2915 *[-_]lib)
2916 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2917 ;;
2918 *)
2919 lib=$libopt
2920 ;;
2921 esac
2922 changequote([,])
2924 case $lib in
2925 mpc | mpfr | gmp | isl)
2926 # If we're processing --with-$lib, --with-$lib-include or
2927 # --with-$lib-lib, for one of the libs above, and target is
2928 # different from host, don't pass the current argument to any
2929 # target library's configure.
2930 if test x$is_cross_compiler = xyes; then
2931 skip_targ=yes
2932 fi
2933 ;;
2934 esac
2935 ;;
2936 esac
2938 case "$ac_arg" in
2939 --cache-file=/dev/null | \
2940 -cache-file=/dev/null )
2941 # Handled here to avoid the test to skip args below.
2942 baseargs="$baseargs '$ac_arg'"
2943 tbaseargs="$tbaseargs '$ac_arg'"
2944 # Assert: $separate_arg should always be no.
2945 keep_next=$separate_arg
2946 ;;
2947 --no*)
2948 continue
2949 ;;
2950 --c* | \
2951 --sr* | \
2952 --ho* | \
2953 --bu* | \
2954 --t* | \
2955 --program-* | \
2956 -cache_file* | \
2957 -srcdir* | \
2958 -host* | \
2959 -build* | \
2960 -target* | \
2961 -program-prefix* | \
2962 -program-suffix* | \
2963 -program-transform-name* )
2964 skip_next=$separate_arg
2965 continue
2966 ;;
2967 -*)
2968 # An option. Add it.
2969 case $ac_arg in
2970 *\'*)
2971 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2972 esac
2973 baseargs="$baseargs '$ac_arg'"
2974 if test X"$skip_targ" = Xno; then
2975 tbaseargs="$tbaseargs '$ac_arg'"
2976 fi
2977 keep_next=$separate_arg
2978 ;;
2979 *)
2980 # Either a variable assignment, or a nonopt (triplet). Don't
2981 # pass it down; let the Makefile handle this.
2982 continue
2983 ;;
2984 esac
2985 done
2986 # Remove the initial space we just introduced and, as these will be
2987 # expanded by make, quote '$'.
2988 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2990 # Add in --program-transform-name, after --program-prefix and
2991 # --program-suffix have been applied to it. Autoconf has already
2992 # doubled dollar signs and backslashes in program_transform_name; we want
2993 # the backslashes un-doubled, and then the entire thing wrapped in single
2994 # quotes, because this will be expanded first by make and then by the shell.
2995 # Also, because we want to override the logic in subdir configure scripts to
2996 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2997 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2998 ${program_transform_name}
2999 EOF_SED
3000 gcc_transform_name=`cat conftestsed.out`
3001 rm -f conftestsed.out
3002 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3003 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3004 if test "$silent" = yes; then
3005 baseargs="$baseargs --silent"
3006 tbaseargs="$tbaseargs --silent"
3007 fi
3008 baseargs="$baseargs --disable-option-checking"
3009 tbaseargs="$tbaseargs --disable-option-checking"
3011 # Record and document user additions to sub configure arguments.
3012 AC_ARG_VAR([build_configargs],
3013 [additional configure arguments for build directories])
3014 AC_ARG_VAR([host_configargs],
3015 [additional configure arguments for host directories])
3016 AC_ARG_VAR([target_configargs],
3017 [additional configure arguments for target directories])
3019 # For the build-side libraries, we just need to pretend we're native,
3020 # and not use the same cache file. Multilibs are neither needed nor
3021 # desired. We can't even use the same cache file for all build-side
3022 # libraries, as they're compiled differently; some with C, some with
3023 # C++ or with different feature-enabling options.
3024 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3026 # For host modules, accept cache file option, or specification as blank.
3027 case "${cache_file}" in
3028 "") # empty
3029 cache_file_option="" ;;
3030 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3031 cache_file_option="--cache-file=${cache_file}" ;;
3032 *) # relative path
3033 cache_file_option="--cache-file=../${cache_file}" ;;
3034 esac
3036 # Host dirs don't like to share a cache file either, horribly enough.
3037 # This seems to be due to autoconf 2.5x stupidity.
3038 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3040 target_configargs="$target_configargs ${tbaseargs}"
3042 # Passing a --with-cross-host argument lets the target libraries know
3043 # whether they are being built with a cross-compiler or being built
3044 # native. However, it would be better to use other mechanisms to make the
3045 # sorts of decisions they want to make on this basis. Please consider
3046 # this option to be deprecated. FIXME.
3047 if test x${is_cross_compiler} = xyes ; then
3048 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3049 fi
3051 # Special user-friendly check for native x86_64-linux build, if
3052 # multilib is not explicitly enabled.
3053 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3054 x86_64-*linux*:yes:$build:$build:)
3055 # Make sure we have a development environment that handles 32-bit
3056 dev64=no
3057 echo "int main () { return 0; }" > conftest.c
3058 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3059 if test $? = 0 ; then
3060 if test -s conftest || test -s conftest.exe ; then
3061 dev64=yes
3062 fi
3063 fi
3064 rm -f conftest*
3065 if test x${dev64} != xyes ; then
3066 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.])
3067 fi
3068 ;;
3069 esac
3071 # Default to --enable-multilib.
3072 if test x${enable_multilib} = x ; then
3073 target_configargs="--enable-multilib ${target_configargs}"
3074 fi
3076 # Pass --with-newlib if appropriate. Note that target_configdirs has
3077 # changed from the earlier setting of with_newlib.
3078 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3079 target_configargs="--with-newlib ${target_configargs}"
3080 fi
3082 # Different target subdirs use different values of certain variables
3083 # (notably CXX). Worse, multilibs use *lots* of different values.
3084 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3085 # it doesn't automatically accept command-line overrides of them.
3086 # This means it's not safe for target subdirs to share a cache file,
3087 # which is disgusting, but there you have it. Hopefully this can be
3088 # fixed in future. It's still worthwhile to use a cache file for each
3089 # directory. I think.
3091 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3092 # We need to pass --target, as newer autoconf's requires consistency
3093 # for target_alias and gcc doesn't manage it consistently.
3094 target_configargs="--cache-file=./config.cache ${target_configargs}"
3096 FLAGS_FOR_TARGET=
3097 case " $target_configdirs " in
3098 *" newlib "*)
3099 case " $target_configargs " in
3100 *" --with-newlib "*)
3101 case "$target" in
3102 *-cygwin*)
3103 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3104 ;;
3105 esac
3107 # If we're not building GCC, don't discard standard headers.
3108 if test -d ${srcdir}/gcc; then
3109 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3111 if test "${build}" != "${host}"; then
3112 # On Canadian crosses, CC_FOR_TARGET will have already been set
3113 # by `configure', so we won't have an opportunity to add -Bgcc/
3114 # to it. This is right: we don't want to search that directory
3115 # for binaries, but we want the header files in there, so add
3116 # them explicitly.
3117 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3119 # Someone might think of using the pre-installed headers on
3120 # Canadian crosses, in case the installed compiler is not fully
3121 # compatible with the compiler being built. In this case, it
3122 # would be better to flag an error than risking having
3123 # incompatible object files being constructed. We can't
3124 # guarantee that an error will be flagged, but let's hope the
3125 # compiler will do it, when presented with incompatible header
3126 # files.
3127 fi
3128 fi
3130 case "${target}-${is_cross_compiler}" in
3131 i[[3456789]]86-*-linux*-no)
3132 # Here host == target, so we don't need to build gcc,
3133 # so we don't want to discard standard headers.
3134 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3135 ;;
3136 *)
3137 # If we're building newlib, use its generic headers last, but search
3138 # for any libc-related directories first (so make it the last -B
3139 # switch).
3140 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3142 # If we're building libgloss, find the startup file, simulator library
3143 # and linker script.
3144 case " $target_configdirs " in
3145 *" libgloss "*)
3146 # Look for startup file, simulator library and maybe linker script.
3147 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3148 # Look for libnosys.a in case the target needs it.
3149 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3150 # Most targets have the linker script in the source directory.
3151 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3152 ;;
3153 esac
3154 ;;
3155 esac
3156 ;;
3157 esac
3158 ;;
3159 esac
3161 case "$target" in
3162 x86_64-*mingw* | *-w64-mingw*)
3163 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3164 # however, use a symlink named 'mingw' in ${prefix} .
3165 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3166 ;;
3167 *-mingw*)
3168 # MinGW can't be handled as Cygwin above since it does not use newlib.
3169 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3170 ;;
3171 esac
3173 # Allow the user to override the flags for
3174 # our build compiler if desired.
3175 if test x"${build}" = x"${host}" ; then
3176 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3177 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3178 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3179 fi
3181 # On Canadian crosses, we'll be searching the right directories for
3182 # the previously-installed cross compiler, so don't bother to add
3183 # flags for directories within the install tree of the compiler
3184 # being built; programs in there won't even run.
3185 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3186 # Search for pre-installed headers if nothing else fits.
3187 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3188 fi
3190 if test "x${use_gnu_ld}" = x &&
3191 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3192 # Arrange for us to find uninstalled linker scripts.
3193 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3194 fi
3196 # Search for other target-specific linker scripts and such.
3197 case "${target}" in
3198 mep*)
3199 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3200 ;;
3201 esac
3203 # Makefile fragments.
3204 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3205 do
3206 eval fragval=\$$frag
3207 if test $fragval != /dev/null; then
3208 eval $frag=${srcdir}/$fragval
3209 fi
3210 done
3211 AC_SUBST_FILE(host_makefile_frag)
3212 AC_SUBST_FILE(target_makefile_frag)
3213 AC_SUBST_FILE(alphaieee_frag)
3214 AC_SUBST_FILE(ospace_frag)
3216 # Miscellanea: directories, flags, etc.
3217 AC_SUBST(RPATH_ENVVAR)
3218 AC_SUBST(GCC_SHLIB_SUBDIR)
3219 AC_SUBST(tooldir)
3220 AC_SUBST(build_tooldir)
3221 AC_SUBST(CONFIGURE_GDB_TK)
3222 AC_SUBST(GDB_TK)
3223 AC_SUBST(INSTALL_GDB_TK)
3225 # Build module lists & subconfigure args.
3226 AC_SUBST(build_configargs)
3227 AC_SUBST(build_configdirs)
3229 # Host module lists & subconfigure args.
3230 AC_SUBST(host_configargs)
3231 AC_SUBST(configdirs)
3232 AC_SUBST(target_configdirs)
3234 # Target module lists & subconfigure args.
3235 AC_SUBST(target_configargs)
3238 # Build tools.
3239 AC_SUBST(AR_FOR_BUILD)
3240 AC_SUBST(AS_FOR_BUILD)
3241 AC_SUBST(CC_FOR_BUILD)
3242 AC_SUBST(CFLAGS_FOR_BUILD)
3243 AC_SUBST(CXXFLAGS_FOR_BUILD)
3244 AC_SUBST(CXX_FOR_BUILD)
3245 AC_SUBST(DLLTOOL_FOR_BUILD)
3246 AC_SUBST(GFORTRAN_FOR_BUILD)
3247 AC_SUBST(GOC_FOR_BUILD)
3248 AC_SUBST(LDFLAGS_FOR_BUILD)
3249 AC_SUBST(LD_FOR_BUILD)
3250 AC_SUBST(NM_FOR_BUILD)
3251 AC_SUBST(RANLIB_FOR_BUILD)
3252 AC_SUBST(WINDMC_FOR_BUILD)
3253 AC_SUBST(WINDRES_FOR_BUILD)
3255 # Generate default definitions for YACC, M4, LEX and other programs that run
3256 # on the build machine. These are used if the Makefile can't locate these
3257 # programs in objdir.
3258 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3260 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3261 case " $build_configdirs " in
3262 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3263 esac
3265 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3266 case " $build_configdirs " in
3267 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3268 esac
3270 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3271 case " $build_configdirs " in
3272 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3273 esac
3275 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3276 case " $build_configdirs " in
3277 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3278 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3279 esac
3281 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3282 case " $build_configdirs " in
3283 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3284 esac
3286 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3287 case " $build_configdirs " in
3288 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3289 *)
3290 changequote(,)
3291 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3292 # higher, else we use the "missing" dummy.
3293 if ${MAKEINFO} --version \
3294 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3295 :
3296 else
3297 MAKEINFO="$MISSING makeinfo"
3298 fi
3299 ;;
3300 changequote([,])
3301 esac
3303 # FIXME: expect and dejagnu may become build tools?
3305 AC_CHECK_PROGS(EXPECT, expect, expect)
3306 case " $configdirs " in
3307 *" expect "*)
3308 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3309 ;;
3310 esac
3312 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3313 case " $configdirs " in
3314 *" dejagnu "*)
3315 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3316 ;;
3317 esac
3320 # Host tools.
3321 NCN_STRICT_CHECK_TOOLS(AR, ar)
3322 NCN_STRICT_CHECK_TOOLS(AS, as)
3323 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3324 NCN_STRICT_CHECK_TOOLS(LD, ld)
3325 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3326 NCN_STRICT_CHECK_TOOLS(NM, nm)
3327 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3328 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3329 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3330 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3331 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3332 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3333 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3334 AC_SUBST(CC)
3335 AC_SUBST(CXX)
3336 AC_SUBST(CFLAGS)
3337 AC_SUBST(CXXFLAGS)
3339 # Target tools.
3340 AC_ARG_WITH([build-time-tools],
3341 [AS_HELP_STRING([--with-build-time-tools=PATH],
3342 [use given path to find target tools during the build])],
3343 [case x"$withval" in
3344 x/*) ;;
3345 *)
3346 with_build_time_tools=
3347 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3348 ;;
3349 esac],
3350 [with_build_time_tools=])
3352 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3353 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3354 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3355 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3356 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3358 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3359 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3360 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3361 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3362 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3363 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3364 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3365 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3366 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3367 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3368 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3369 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3370 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3372 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3374 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3375 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3376 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3377 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3378 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3379 [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],
3380 c++)
3381 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3382 [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],
3383 c++)
3384 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3385 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3386 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3387 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3388 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3389 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3390 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3391 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3392 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3393 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3394 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3395 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3396 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3397 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3398 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3399 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3401 AC_SUBST(FLAGS_FOR_TARGET)
3402 AC_SUBST(RAW_CXX_FOR_TARGET)
3404 # Certain tools may need extra flags.
3405 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3406 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3407 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3409 # When building target libraries, except in a Canadian cross, we use
3410 # the same toolchain as the compiler we just built.
3411 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3412 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3413 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3414 if test $host = $build; then
3415 case " $configdirs " in
3416 *" gcc "*)
3417 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3418 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3419 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3420 ;;
3421 esac
3422 fi
3424 AC_SUBST(COMPILER_AS_FOR_TARGET)
3425 AC_SUBST(COMPILER_LD_FOR_TARGET)
3426 AC_SUBST(COMPILER_NM_FOR_TARGET)
3428 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3429 AC_ARG_ENABLE(maintainer-mode,
3430 [AS_HELP_STRING([--enable-maintainer-mode],
3431 [enable make rules and dependencies not useful
3432 (and sometimes confusing) to the casual installer])],
3433 USE_MAINTAINER_MODE=$enableval,
3434 USE_MAINTAINER_MODE=no)
3435 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3436 AC_SUBST(MAINTAINER_MODE_TRUE)
3437 AC_SUBST(MAINTAINER_MODE_FALSE)
3438 if test "$USE_MAINTAINER_MODE" = yes; then
3439 MAINTAINER_MODE_TRUE=
3440 MAINTAINER_MODE_FALSE='#'
3441 else
3442 MAINTAINER_MODE_TRUE='#'
3443 MAINTAINER_MODE_FALSE=
3444 fi
3445 MAINT=$MAINTAINER_MODE_TRUE
3446 AC_SUBST(MAINT)dnl
3448 # ---------------------
3449 # GCC bootstrap support
3450 # ---------------------
3452 # Stage specific cflags for build.
3453 stage1_cflags="-g"
3454 case $build in
3455 vax-*-*)
3456 case ${GCC} in
3457 yes) stage1_cflags="-g -Wa,-J" ;;
3458 *) stage1_cflags="-g -J" ;;
3459 esac ;;
3460 esac
3462 AC_SUBST(stage1_cflags)
3464 # Enable --enable-checking in stage1 of the compiler.
3465 AC_ARG_ENABLE(stage1-checking,
3466 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3467 [choose additional checking for stage1 of the compiler])],
3468 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3469 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3470 # For --disable-checking or implicit --enable-checking=release, avoid
3471 # setting --enable-checking=gc in the default stage1 checking for LTO
3472 # bootstraps. See PR62077.
3473 case $BUILD_CONFIG in
3474 *lto*)
3475 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3476 *)
3477 stage1_checking=--enable-checking=yes,types;;
3478 esac
3479 if test "x$enable_checking" = x && \
3480 test -d ${srcdir}/gcc && \
3481 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3482 stage1_checking=--enable-checking=yes,types,extra
3483 fi
3484 else
3485 stage1_checking=--enable-checking=$enable_checking,types
3486 fi])
3487 AC_SUBST(stage1_checking)
3489 # Enable -Werror in bootstrap stage2 and later.
3490 AC_ARG_ENABLE(werror,
3491 [AS_HELP_STRING([--enable-werror],
3492 [enable -Werror in bootstrap stage2 and later])],
3493 [
3494 case ${enable_werror} in
3495 yes) stage2_werror_flag="--enable-werror-always" ;;
3496 *) stage2_werror_flag="" ;;
3497 esac
3498 ],
3499 [
3500 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3501 case $BUILD_CONFIG in
3502 bootstrap-debug)
3503 stage2_werror_flag="--enable-werror-always" ;;
3504 "")
3505 stage2_werror_flag="--enable-werror-always" ;;
3506 esac
3507 fi
3508 ])
3510 AC_SUBST(stage2_werror_flag)
3512 # Specify what files to not compare during bootstrap.
3514 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3515 case "$target" in
3516 hppa*64*-*-hpux*) ;;
3517 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;;
3518 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3519 esac
3520 AC_SUBST(compare_exclusions)
3522 AC_CONFIG_FILES([Makefile],
3523 [sed "$extrasub_build" Makefile |
3524 sed "$extrasub_host" |
3525 sed "$extrasub_target" > mf$$
3526 mv -f mf$$ Makefile],
3527 [extrasub_build="$extrasub_build"
3528 extrasub_host="$extrasub_host"
3529 extrasub_target="$extrasub_target"])
3530 AC_OUTPUT