| blob | 1fe97c001cc459f972b9248fbf7285a9c8cbc155 |
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, 2019 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_DISABLE_OPTION_CHECKING
36 progname=$0
37 # if PWD already has a value, it is probably wrong.
38 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
40 # Export original configure arguments for use by sub-configures.
41 # Quote arguments with shell meta charatcers.
42 TOPLEVEL_CONFIGURE_ARGUMENTS=
43 set -- "$progname" "$@"
44 for ac_arg
45 do
46 case "$ac_arg" in
47 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
48 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
49 # if the argument is of the form -foo=baz, quote the baz part only
50 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
51 *) ;;
52 esac
53 # Add the quoted argument to the list.
54 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
55 done
56 if test "$silent" = yes; then
57 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
58 fi
59 # Remove the initial space we just introduced and, as these will be
60 # expanded by make, quote '$'.
61 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
62 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
64 # Find the build, host, and target systems.
65 ACX_NONCANONICAL_BUILD
66 ACX_NONCANONICAL_HOST
67 ACX_NONCANONICAL_TARGET
69 dnl Autoconf 2.5x and later will set a default program prefix if
70 dnl --target was used, even if it was the same as --host. Disable
71 dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
72 dnl to take effect.
73 test "$host_noncanonical" = "$target_noncanonical" &&
74 test "$program_prefix$program_suffix$program_transform_name" = \
75 NONENONEs,x,x, &&
76 program_transform_name=s,y,y,
78 AC_CANONICAL_SYSTEM
79 AC_ARG_PROGRAM
81 m4_pattern_allow([^AS_FOR_TARGET$])dnl
82 m4_pattern_allow([^AS_FOR_BUILD$])dnl
84 # Get 'install' or 'install-sh' and its variants.
85 AC_PROG_INSTALL
86 ACX_PROG_LN
87 AC_PROG_LN_S
88 AC_PROG_SED
89 AC_PROG_AWK
91 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
93 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
94 # a relative path.
95 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
96 INSTALL="${srcpwd}/install-sh -c"
97 fi
99 # Set srcdir to "." if that's what it is.
100 # This is important for multilib support.
101 pwd=`${PWDCMD-pwd}`
102 if test "${pwd}" = "${srcpwd}" ; then
103 srcdir=.
104 fi
106 topsrcdir=$srcpwd
108 extra_host_args=
110 ### To add a new directory to the tree, first choose whether it is a target
111 ### or a host dependent tool. Then put it into the appropriate list
112 ### (library or tools, host or target), doing a dependency sort.
114 # Subdirs will be configured in the order listed in build_configdirs,
115 # configdirs, or target_configdirs; see the serialization section below.
117 # Dependency sorting is only needed when *configuration* must be done in
118 # a particular order. In all cases a dependency should be specified in
119 # the Makefile, whether or not it's implicitly specified here.
121 # Double entries in build_configdirs, configdirs, or target_configdirs may
122 # cause circular dependencies and break everything horribly.
124 # these library is used by various programs built for the build
125 # environment
126 #
127 build_libs="build-libiberty build-libcpp"
129 # these tools are built for the build environment
130 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
132 # these libraries are used by various programs built for the host environment
133 #f
134 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv libctf"
136 # these tools are built for the host environment
137 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
138 # know that we are building the simulator.
139 # binutils, gas and ld appear in that order because it makes sense to run
140 # "make check" in that particular order.
141 # If --enable-gold is used, "gold" may replace "ld".
142 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"
144 # these libraries are built for the target environment, and are built after
145 # the host libraries and the host tools (which may be a cross compiler)
146 # Note that libiberty is not a target library.
147 target_libraries="target-libgcc \
148 target-libbacktrace \
149 target-libgloss \
150 target-newlib \
151 target-libgomp \
152 target-liboffloadmic \
153 target-libhsail-rt \
154 target-libatomic \
155 target-libitm \
156 target-libstdc++-v3 \
157 target-libsanitizer \
158 target-libvtv \
159 target-libssp \
160 target-libquadmath \
161 target-libgfortran \
162 target-libffi \
163 target-libobjc \
164 target-libada \
165 target-libgo \
166 target-libphobos \
167 target-zlib"
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 # Disable libhsail-rt on unsupported systems.
605 if test -d ${srcdir}/libhsail-rt; then
606 if test x$enable_libhsail_rt = x; then
607 AC_MSG_CHECKING([for libhsail-rt support])
608 if (srcdir=${srcdir}/libhsail-rt; \
609 . ${srcdir}/configure.tgt; \
610 test -n "$UNSUPPORTED")
611 then
612 AC_MSG_RESULT([no])
613 unsupported_languages="$unsupported_languages brig"
614 # This implicitly disables also target-libhsail-rt as it won't
615 # get added to the build without BRIG FE.
616 else
617 AC_MSG_RESULT([yes])
618 fi
619 fi
620 fi
623 # Disable libquadmath for some systems.
624 case "${target}" in
625 avr-*-*)
626 noconfigdirs="$noconfigdirs target-libquadmath"
627 ;;
628 # libquadmath is unused on AIX and libquadmath build process use of
629 # LD_LIBRARY_PATH can break AIX bootstrap.
630 powerpc-*-aix* | rs6000-*-aix*)
631 noconfigdirs="$noconfigdirs target-libquadmath"
632 ;;
633 esac
635 # Disable libssp for some systems.
636 case "${target}" in
637 avr-*-*)
638 # No hosted I/O support.
639 noconfigdirs="$noconfigdirs target-libssp"
640 ;;
641 powerpc-*-aix* | rs6000-*-aix*)
642 noconfigdirs="$noconfigdirs target-libssp"
643 ;;
644 pru-*-*)
645 # No hosted I/O support.
646 noconfigdirs="$noconfigdirs target-libssp"
647 ;;
648 rl78-*-*)
649 # libssp uses a misaligned load to trigger a fault, but the RL78
650 # doesn't fault for those - instead, it gives a build-time error
651 # for explicit misaligned loads.
652 noconfigdirs="$noconfigdirs target-libssp"
653 ;;
654 visium-*-*)
655 # No hosted I/O support.
656 noconfigdirs="$noconfigdirs target-libssp"
657 ;;
658 esac
660 # Disable libstdc++-v3 for some systems.
661 # Allow user to override this if they pass --enable-libstdc++-v3
662 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
663 case "${target}" in
664 *-*-vxworks*)
665 # VxWorks uses the Dinkumware C++ library.
666 noconfigdirs="$noconfigdirs target-libstdc++-v3"
667 ;;
668 arm*-wince-pe*)
669 # the C++ libraries don't build on top of CE's C libraries
670 noconfigdirs="$noconfigdirs target-libstdc++-v3"
671 ;;
672 avr-*-*)
673 noconfigdirs="$noconfigdirs target-libstdc++-v3"
674 ;;
675 ft32-*-*)
676 noconfigdirs="$noconfigdirs target-libstdc++-v3"
677 ;;
678 esac
679 fi
681 # Disable D on systems where it is known to not work.
682 # For testing, you can override this with --enable-languages=d.
683 case ,${enable_languages}, in
684 *,d,*)
685 ;;
686 *)
687 case "${target}" in
688 *-*-darwin*)
689 unsupported_languages="$unsupported_languages d"
690 ;;
691 esac
692 ;;
693 esac
695 # Disable libphobos on unsupported systems.
696 # For testing, you can override this with --enable-libphobos.
697 if test -d ${srcdir}/libphobos; then
698 if test x$enable_libphobos = x; then
699 AC_MSG_CHECKING([for libphobos support])
700 if (srcdir=${srcdir}/libphobos; \
701 . ${srcdir}/configure.tgt; \
702 test "$LIBPHOBOS_SUPPORTED" != "yes")
703 then
704 AC_MSG_RESULT([no])
705 noconfigdirs="$noconfigdirs target-libphobos"
706 else
707 AC_MSG_RESULT([yes])
708 fi
709 fi
710 fi
712 # Disable Fortran for some systems.
713 case "${target}" in
714 mmix-*-*)
715 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
716 unsupported_languages="$unsupported_languages fortran"
717 ;;
718 esac
720 # Disable libffi for some systems.
721 case "${target}" in
722 powerpc-*-darwin*)
723 ;;
724 i[[3456789]]86-*-darwin*)
725 ;;
726 x86_64-*-darwin[[912]]*)
727 ;;
728 *-*-darwin*)
729 noconfigdirs="$noconfigdirs target-libffi"
730 ;;
731 *-*-netware*)
732 noconfigdirs="$noconfigdirs target-libffi"
733 ;;
734 *-*-phoenix*)
735 noconfigdirs="$noconfigdirs target-libffi"
736 ;;
737 *-*-rtems*)
738 noconfigdirs="$noconfigdirs target-libffi"
739 ;;
740 *-*-tpf*)
741 noconfigdirs="$noconfigdirs target-libffi"
742 ;;
743 *-*-uclinux*)
744 noconfigdirs="$noconfigdirs target-libffi"
745 ;;
746 *-*-vxworks*)
747 noconfigdirs="$noconfigdirs target-libffi"
748 ;;
749 aarch64*-*-freebsd*)
750 noconfigdirs="$noconfigdirs target-libffi"
751 ;;
752 alpha*-*-*vms*)
753 noconfigdirs="$noconfigdirs target-libffi"
754 ;;
755 arm*-*-freebsd*)
756 noconfigdirs="$noconfigdirs target-libffi"
757 ;;
758 arm-wince-pe)
759 noconfigdirs="$noconfigdirs target-libffi"
760 ;;
761 arm*-*-symbianelf*)
762 noconfigdirs="$noconfigdirs target-libffi"
763 ;;
764 cris-*-* | crisv32-*-*)
765 case "${target}" in
766 *-*-linux*)
767 ;;
768 *) # See PR46792 regarding target-libffi.
769 noconfigdirs="$noconfigdirs target-libffi";;
770 esac
771 ;;
772 hppa*64*-*-hpux*)
773 noconfigdirs="$noconfigdirs target-libffi"
774 ;;
775 hppa*-hp-hpux11*)
776 ;;
777 hppa*-*-hpux*)
778 noconfigdirs="$noconfigdirs target-libffi"
779 ;;
780 ia64*-*-*vms*)
781 noconfigdirs="$noconfigdirs target-libffi"
782 ;;
783 i[[3456789]]86-w64-mingw*)
784 noconfigdirs="$noconfigdirs target-libffi"
785 ;;
786 i[[3456789]]86-*-mingw*)
787 noconfigdirs="$noconfigdirs target-libffi"
788 ;;
789 x86_64-*-mingw*)
790 noconfigdirs="$noconfigdirs target-libffi"
791 ;;
792 mmix-*-*)
793 noconfigdirs="$noconfigdirs target-libffi"
794 ;;
795 powerpc-*-aix*)
796 ;;
797 rs6000-*-aix*)
798 ;;
799 ft32-*-*)
800 noconfigdirs="$noconfigdirs target-libffi"
801 ;;
802 *-*-lynxos*)
803 noconfigdirs="$noconfigdirs target-libffi"
804 ;;
805 esac
807 # Disable the go frontend on systems where it is known to not work. Please keep
808 # this in sync with contrib/config-list.mk.
809 case "${target}" in
810 *-*-darwin* | *-*-cygwin* | *-*-mingw*)
811 unsupported_languages="$unsupported_languages go"
812 ;;
813 esac
815 # Disable libgo for some systems where it is known to not work.
816 # For testing, you can easily override this with --enable-libgo.
817 if test x$enable_libgo = x; then
818 case "${target}" in
819 *-*-darwin*)
820 # PR 46986
821 noconfigdirs="$noconfigdirs target-libgo"
822 ;;
823 *-*-cygwin* | *-*-mingw*)
824 noconfigdirs="$noconfigdirs target-libgo"
825 ;;
826 esac
827 fi
829 # Default libgloss CPU subdirectory.
830 libgloss_dir="$target_cpu"
832 case "${target}" in
833 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
834 libgloss_dir=wince
835 ;;
836 aarch64*-*-* )
837 libgloss_dir=aarch64
838 ;;
839 arm*-*-*)
840 libgloss_dir=arm
841 ;;
842 cris-*-* | crisv32-*-*)
843 libgloss_dir=cris
844 ;;
845 hppa*-*-*)
846 libgloss_dir=pa
847 ;;
848 i[[3456789]]86-*-*)
849 libgloss_dir=i386
850 ;;
851 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
852 libgloss_dir=m68hc11
853 ;;
854 m68*-*-* | fido-*-*)
855 libgloss_dir=m68k
856 ;;
857 mips*-*-*)
858 libgloss_dir=mips
859 ;;
860 powerpc*-*-*)
861 libgloss_dir=rs6000
862 ;;
863 pru-*-*)
864 libgloss_dir=pru
865 ;;
866 sparc*-*-*)
867 libgloss_dir=sparc
868 ;;
869 esac
871 # Disable newlib and libgloss for various target OSes.
872 case "${target}" in
873 alpha*-dec-osf*)
874 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
875 ;;
876 i[[3456789]]86-*-linux*)
877 # This section makes it possible to build newlib natively on linux.
878 # If we are using a cross compiler then don't configure newlib.
879 if test x${is_cross_compiler} != xno ; then
880 noconfigdirs="$noconfigdirs target-newlib"
881 fi
882 noconfigdirs="$noconfigdirs target-libgloss"
883 # If we are not using a cross compiler, do configure newlib.
884 # Note however, that newlib will only be configured in this situation
885 # if the --with-newlib option has been given, because otherwise
886 # 'target-newlib' will appear in skipdirs.
887 ;;
888 i[[3456789]]86-*-rdos*)
889 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
890 ;;
891 sh*-*-pe|mips*-*-pe|arm-wince-pe)
892 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
893 ;;
894 sparc-*-sunos4*)
895 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
896 ;;
897 *-*-aix*)
898 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
899 ;;
900 *-*-beos*)
901 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
902 ;;
903 *-*-chorusos)
904 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
905 ;;
906 *-*-dragonfly*)
907 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
908 ;;
909 *-*-freebsd*)
910 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
911 ;;
912 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
913 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
914 ;;
915 *-*-lynxos*)
916 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
917 ;;
918 *-*-mingw*)
919 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
920 ;;
921 *-*-netbsd*)
922 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
923 ;;
924 *-*-netware*)
925 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
926 ;;
927 *-*-tpf*)
928 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
929 ;;
930 *-*-uclinux*)
931 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
932 ;;
933 *-*-vxworks*)
934 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
935 ;;
936 esac
938 case "${target}" in
939 *-*-chorusos)
940 ;;
941 aarch64-*-darwin*)
942 noconfigdirs="$noconfigdirs ld gas gdb gprof"
943 noconfigdirs="$noconfigdirs sim target-rda"
944 ;;
945 amdgcn*-*-*)
946 ;;
947 arm-*-darwin*)
948 noconfigdirs="$noconfigdirs ld gas gdb gprof"
949 noconfigdirs="$noconfigdirs sim target-rda"
950 ;;
951 powerpc-*-darwin*)
952 noconfigdirs="$noconfigdirs ld gas gdb gprof"
953 noconfigdirs="$noconfigdirs sim target-rda"
954 ;;
955 i[[3456789]]86-*-darwin*)
956 noconfigdirs="$noconfigdirs ld gprof"
957 noconfigdirs="$noconfigdirs sim target-rda"
958 ;;
959 x86_64-*-darwin[[912]]*)
960 noconfigdirs="$noconfigdirs ld gas gprof"
961 noconfigdirs="$noconfigdirs sim target-rda"
962 ;;
963 *-*-darwin*)
964 noconfigdirs="$noconfigdirs ld gas gdb gprof"
965 noconfigdirs="$noconfigdirs sim target-rda"
966 ;;
967 *-*-dragonfly*)
968 ;;
969 *-*-freebsd*)
970 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
971 && test -f /usr/local/include/gmp.h; then
972 with_gmp=/usr/local
973 fi
974 ;;
975 *-*-kaos*)
976 # Remove unsupported stuff on all kaOS configurations.
977 noconfigdirs="$noconfigdirs target-libgloss"
978 ;;
979 *-*-netbsd*)
980 ;;
981 *-*-netware*)
982 ;;
983 *-*-phoenix*)
984 noconfigdirs="$noconfigdirs target-libgloss"
985 ;;
986 *-*-rtems*)
987 noconfigdirs="$noconfigdirs target-libgloss"
988 ;;
989 # The tpf target doesn't support gdb yet.
990 *-*-tpf*)
991 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
992 ;;
993 *-*-uclinux*)
994 noconfigdirs="$noconfigdirs target-rda"
995 ;;
996 *-*-vxworks*)
997 ;;
998 alpha*-dec-osf*)
999 # ld works, but does not support shared libraries.
1000 # gas doesn't generate exception information.
1001 noconfigdirs="$noconfigdirs gas ld"
1002 ;;
1003 alpha*-*-*vms*)
1004 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1005 ;;
1006 alpha*-*-*)
1007 # newlib is not 64 bit ready
1008 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1009 ;;
1010 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1011 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1012 ;;
1013 arc*-*-*)
1014 noconfigdirs="$noconfigdirs sim"
1015 ;;
1016 arm-*-pe*)
1017 noconfigdirs="$noconfigdirs target-libgloss"
1018 ;;
1019 arm-*-riscix*)
1020 noconfigdirs="$noconfigdirs ld target-libgloss"
1021 ;;
1022 avr-*-*)
1023 if test x${with_avrlibc} != xno; then
1024 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1025 fi
1026 ;;
1027 c4x-*-* | tic4x-*-*)
1028 noconfigdirs="$noconfigdirs target-libgloss"
1029 ;;
1030 tic54x-*-*)
1031 noconfigdirs="$noconfigdirs target-libgloss gdb"
1032 ;;
1033 d10v-*-*)
1034 noconfigdirs="$noconfigdirs target-libgloss"
1035 ;;
1036 d30v-*-*)
1037 noconfigdirs="$noconfigdirs gdb"
1038 ;;
1039 fr30-*-elf*)
1040 noconfigdirs="$noconfigdirs gdb"
1041 ;;
1042 ft32-*-*)
1043 noconfigdirs="$noconfigdirs target-rda gprof"
1044 ;;
1045 moxie-*-*)
1046 noconfigdirs="$noconfigdirs"
1047 ;;
1048 h8300*-*-*)
1049 noconfigdirs="$noconfigdirs target-libgloss"
1050 ;;
1051 h8500-*-*)
1052 noconfigdirs="$noconfigdirs target-libgloss"
1053 ;;
1054 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1055 ;;
1056 hppa*64*-*-hpux*)
1057 noconfigdirs="$noconfigdirs gdb"
1058 ;;
1059 hppa*-*-hpux11*)
1060 noconfigdirs="$noconfigdirs gdb ld"
1061 ;;
1062 hppa*64*-*-linux*)
1063 ;;
1064 hppa*-*-linux*)
1065 ;;
1066 hppa*-*-*elf* | \
1067 hppa*-*-lites* | \
1068 hppa*-*-openbsd* | \
1069 hppa*64*-*-*)
1070 ;;
1071 hppa*-*-pro*)
1072 ;;
1073 hppa*-*-*)
1074 noconfigdirs="$noconfigdirs ld"
1075 ;;
1076 i960-*-*)
1077 noconfigdirs="$noconfigdirs gdb"
1078 ;;
1079 ia64*-*-elf*)
1080 # No gdb support yet.
1081 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1082 ;;
1083 ia64*-**-hpux*)
1084 # No ld support yet.
1085 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1086 ;;
1087 ia64*-*-*vms*)
1088 # No ld support yet.
1089 noconfigdirs="$noconfigdirs libgui itcl ld"
1090 ;;
1091 i[[3456789]]86-w64-mingw*)
1092 ;;
1093 i[[3456789]]86-*-mingw*)
1094 target_configdirs="$target_configdirs target-winsup"
1095 ;;
1096 *-*-cygwin*)
1097 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1098 noconfigdirs="$noconfigdirs target-libgloss"
1099 # always build newlib if winsup directory is present.
1100 if test -d "$srcdir/winsup/cygwin"; then
1101 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1102 elif test -d "$srcdir/newlib"; then
1103 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1104 fi
1105 ;;
1106 i[[3456789]]86-*-pe)
1107 noconfigdirs="$noconfigdirs target-libgloss"
1108 ;;
1109 i[[3456789]]86-*-sco3.2v5*)
1110 # The linker does not yet know about weak symbols in COFF,
1111 # and is not configured to handle mixed ELF and COFF.
1112 noconfigdirs="$noconfigdirs ld target-libgloss"
1113 ;;
1114 i[[3456789]]86-*-sco*)
1115 noconfigdirs="$noconfigdirs gprof target-libgloss"
1116 ;;
1117 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1118 noconfigdirs="$noconfigdirs target-libgloss"
1119 ;;
1120 i[[3456789]]86-*-sysv4*)
1121 noconfigdirs="$noconfigdirs target-libgloss"
1122 ;;
1123 i[[3456789]]86-*-beos*)
1124 noconfigdirs="$noconfigdirs gdb"
1125 ;;
1126 i[[3456789]]86-*-rdos*)
1127 noconfigdirs="$noconfigdirs gdb"
1128 ;;
1129 mmix-*-*)
1130 noconfigdirs="$noconfigdirs gdb"
1131 ;;
1132 mt-*-*)
1133 noconfigdirs="$noconfigdirs sim"
1134 ;;
1135 nfp-*-*)
1136 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1137 noconfigdirs="$noconfigdirs $target_libraries"
1138 ;;
1139 powerpc-*-aix*)
1140 # copied from rs6000-*-* entry
1141 noconfigdirs="$noconfigdirs gprof"
1142 ;;
1143 powerpc*-*-winnt* | powerpc*-*-pe*)
1144 target_configdirs="$target_configdirs target-winsup"
1145 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1146 # always build newlib.
1147 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1148 ;;
1149 # This is temporary until we can link against shared libraries
1150 powerpcle-*-solaris*)
1151 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1152 ;;
1153 powerpc-*-beos*)
1154 noconfigdirs="$noconfigdirs gdb"
1155 ;;
1156 rs6000-*-lynxos*)
1157 noconfigdirs="$noconfigdirs gprof"
1158 ;;
1159 rs6000-*-aix*)
1160 noconfigdirs="$noconfigdirs gprof"
1161 ;;
1162 rs6000-*-*)
1163 noconfigdirs="$noconfigdirs gprof"
1164 ;;
1165 m68k-apollo-*)
1166 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1167 ;;
1168 microblaze*)
1169 noconfigdirs="$noconfigdirs gprof"
1170 ;;
1171 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1172 if test x$with_newlib = xyes; then
1173 noconfigdirs="$noconfigdirs gprof"
1174 fi
1175 ;;
1176 mips*-*-irix5*)
1177 noconfigdirs="$noconfigdirs gprof target-libgloss"
1178 ;;
1179 mips*-*-irix6*)
1180 noconfigdirs="$noconfigdirs gprof target-libgloss"
1181 ;;
1182 mips*-*-bsd*)
1183 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1184 ;;
1185 mips*-*-linux*)
1186 ;;
1187 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1188 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1189 noconfigdirs="$noconfigdirs ld gas gprof"
1190 ;;
1191 mips*-*-*)
1192 noconfigdirs="$noconfigdirs gprof"
1193 ;;
1194 nvptx*-*-*)
1195 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1196 ;;
1197 sh-*-*)
1198 case "${target}" in
1199 sh*-*-elf)
1200 ;;
1201 *)
1202 noconfigdirs="$noconfigdirs target-libgloss" ;;
1203 esac
1204 ;;
1205 sparc-*-sunos4*)
1206 if test x${is_cross_compiler} = xno ; then
1207 use_gnu_ld=no
1208 fi
1209 ;;
1210 tic6x-*-*)
1211 noconfigdirs="$noconfigdirs sim"
1212 ;;
1213 tilepro*-*-* | tilegx*-*-*)
1214 noconfigdirs="$noconfigdirs sim"
1215 ;;
1216 v810-*-*)
1217 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1218 ;;
1219 vax-*-*)
1220 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1221 ;;
1222 wasm32-*-*)
1223 noconfigdirs="$noconfigdirs ld"
1224 ;;
1225 esac
1227 # If we aren't building newlib, then don't build libgloss, since libgloss
1228 # depends upon some newlib header files.
1229 case "${noconfigdirs}" in
1230 *target-libgloss*) ;;
1231 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1232 esac
1234 # Work in distributions that contain no compiler tools, like Autoconf.
1235 host_makefile_frag=/dev/null
1236 if test -d ${srcdir}/config ; then
1237 case "${host}" in
1238 i[[3456789]]86-*-msdosdjgpp*)
1239 host_makefile_frag="config/mh-djgpp"
1240 ;;
1241 *-cygwin*)
1242 ACX_CHECK_CYGWIN_CAT_WORKS
1243 host_makefile_frag="config/mh-cygwin"
1244 ;;
1245 *-mingw*)
1246 host_makefile_frag="config/mh-mingw"
1247 ;;
1248 alpha*-linux*)
1249 host_makefile_frag="config/mh-alpha-linux"
1250 ;;
1251 hppa*-hp-hpux10*)
1252 host_makefile_frag="config/mh-pa-hpux10"
1253 ;;
1254 hppa*-hp-hpux*)
1255 host_makefile_frag="config/mh-pa"
1256 ;;
1257 hppa*-*)
1258 host_makefile_frag="config/mh-pa"
1259 ;;
1260 *-*-darwin*)
1261 host_makefile_frag="config/mh-darwin"
1262 ;;
1263 powerpc-*-aix*)
1264 host_makefile_frag="config/mh-ppc-aix"
1265 ;;
1266 rs6000-*-aix*)
1267 host_makefile_frag="config/mh-ppc-aix"
1268 ;;
1269 esac
1270 fi
1272 if test "${build}" != "${host}" ; then
1273 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1274 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1275 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1276 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1277 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1278 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1279 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
1280 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1281 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1282 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1283 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1284 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1285 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1286 else
1287 AR_FOR_BUILD="\$(AR)"
1288 AS_FOR_BUILD="\$(AS)"
1289 CC_FOR_BUILD="\$(CC)"
1290 CXX_FOR_BUILD="\$(CXX)"
1291 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1292 GOC_FOR_BUILD="\$(GOC)"
1293 GDC_FOR_BUILD="\$(GDC)"
1294 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1295 LD_FOR_BUILD="\$(LD)"
1296 NM_FOR_BUILD="\$(NM)"
1297 RANLIB_FOR_BUILD="\$(RANLIB)"
1298 WINDRES_FOR_BUILD="\$(WINDRES)"
1299 WINDMC_FOR_BUILD="\$(WINDMC)"
1300 fi
1302 AC_PROG_CC
1303 AC_PROG_CXX
1305 # We must set the default linker to the linker used by gcc for the correct
1306 # operation of libtool. If LD is not defined and we are using gcc, try to
1307 # set the LD default to the ld used by gcc.
1308 if test -z "$LD"; then
1309 if test "$GCC" = yes; then
1310 case $build in
1311 *-*-mingw*)
1312 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1313 *)
1314 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1315 esac
1316 case $gcc_prog_ld in
1317 # Accept absolute paths.
1318 [[\\/]* | [A-Za-z]:[\\/]*)]
1319 LD="$gcc_prog_ld" ;;
1320 esac
1321 fi
1322 fi
1324 # Check whether -static-libstdc++ -static-libgcc is supported.
1325 have_static_libs=no
1326 if test "$GCC" = yes; then
1327 saved_LDFLAGS="$LDFLAGS"
1329 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1330 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1331 AC_LANG_PUSH(C++)
1332 AC_LINK_IFELSE([AC_LANG_SOURCE([
1333 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1334 #error -static-libstdc++ not implemented
1335 #endif
1336 int main() {}])],
1337 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1338 [AC_MSG_RESULT([no])])
1339 AC_LANG_POP(C++)
1341 LDFLAGS="$saved_LDFLAGS"
1342 fi
1344 ACX_PROG_GNAT
1345 ACX_PROG_CMP_IGNORE_INITIAL
1347 AC_ARG_ENABLE([bootstrap],
1348 [AS_HELP_STRING([--enable-bootstrap],
1349 [enable bootstrapping @<:@yes if native build@:>@])],,
1350 enable_bootstrap=default)
1352 # Issue errors and warnings for invalid/strange bootstrap combinations.
1353 if test -r $srcdir/gcc/configure; then
1354 have_compiler=yes
1355 else
1356 have_compiler=no
1357 fi
1359 case "$have_compiler:$host:$target:$enable_bootstrap" in
1360 *:*:*:no) ;;
1362 # Default behavior. Enable bootstrap if we have a compiler
1363 # and we are in a native configuration.
1364 yes:$build:$build:default)
1365 enable_bootstrap=yes ;;
1367 *:*:*:default)
1368 enable_bootstrap=no ;;
1370 # We have a compiler and we are in a native configuration, bootstrap is ok
1371 yes:$build:$build:yes)
1372 ;;
1374 # Other configurations, but we have a compiler. Assume the user knows
1375 # what he's doing.
1376 yes:*:*:yes)
1377 AC_MSG_WARN([trying to bootstrap a cross compiler])
1378 ;;
1380 # No compiler: if they passed --enable-bootstrap explicitly, fail
1381 no:*:*:yes)
1382 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1384 # Fail if wrong command line
1385 *)
1386 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1387 ;;
1388 esac
1390 # When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1391 # C++98 compiler can still start the bootstrap.
1392 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1393 CXX="$CXX -std=gnu++98"
1394 fi
1396 # Used for setting $lt_cv_objdir
1397 _LT_CHECK_OBJDIR
1399 # Check for GMP, MPFR and MPC
1400 gmplibs="-lmpc -lmpfr -lgmp"
1401 gmpinc=
1402 have_gmp=no
1404 # Specify a location for mpc
1405 # check for this first so it ends up on the link line before mpfr.
1406 AC_ARG_WITH(mpc,
1407 [AS_HELP_STRING([--with-mpc=PATH],
1408 [specify prefix directory for installed MPC package.
1409 Equivalent to --with-mpc-include=PATH/include
1410 plus --with-mpc-lib=PATH/lib])])
1411 AC_ARG_WITH(mpc-include,
1412 [AS_HELP_STRING([--with-mpc-include=PATH],
1413 [specify directory for installed MPC include files])])
1414 AC_ARG_WITH(mpc-lib,
1415 [AS_HELP_STRING([--with-mpc-lib=PATH],
1416 [specify directory for the installed MPC library])])
1418 if test "x$with_mpc" != x; then
1419 gmplibs="-L$with_mpc/lib $gmplibs"
1420 gmpinc="-I$with_mpc/include $gmpinc"
1421 fi
1422 if test "x$with_mpc_include" != x; then
1423 gmpinc="-I$with_mpc_include $gmpinc"
1424 fi
1425 if test "x$with_mpc_lib" != x; then
1426 gmplibs="-L$with_mpc_lib $gmplibs"
1427 fi
1428 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1429 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1430 gmpinc='-I$$s/mpc/src '"$gmpinc"
1431 # Do not test the mpc version. Assume that it is sufficient, since
1432 # it is in the source tree, and the library has not been built yet
1433 # but it would be included on the link line in the version check below
1434 # hence making the test fail.
1435 have_gmp=yes
1436 fi
1438 # Specify a location for mpfr
1439 # check for this first so it ends up on the link line before gmp.
1440 AC_ARG_WITH(mpfr-dir,
1441 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1442 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1443 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1445 AC_ARG_WITH(mpfr,
1446 [AS_HELP_STRING([--with-mpfr=PATH],
1447 [specify prefix directory for installed MPFR package.
1448 Equivalent to --with-mpfr-include=PATH/include
1449 plus --with-mpfr-lib=PATH/lib])])
1450 AC_ARG_WITH(mpfr-include,
1451 [AS_HELP_STRING([--with-mpfr-include=PATH],
1452 [specify directory for installed MPFR include files])])
1453 AC_ARG_WITH(mpfr-lib,
1454 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1455 [specify directory for the installed MPFR library])])
1457 if test "x$with_mpfr" != x; then
1458 gmplibs="-L$with_mpfr/lib $gmplibs"
1459 gmpinc="-I$with_mpfr/include $gmpinc"
1460 fi
1461 if test "x$with_mpfr_include" != x; then
1462 gmpinc="-I$with_mpfr_include $gmpinc"
1463 fi
1464 if test "x$with_mpfr_lib" != x; then
1465 gmplibs="-L$with_mpfr_lib $gmplibs"
1466 fi
1467 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1468 # MPFR v3.1.0 moved the sources into a src sub-directory.
1469 if ! test -d ${srcdir}/mpfr/src; then
1470 AC_MSG_ERROR([dnl
1471 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1472 fi
1473 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1474 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1475 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1476 # Do not test the mpfr version. Assume that it is sufficient, since
1477 # it is in the source tree, and the library has not been built yet
1478 # but it would be included on the link line in the version check below
1479 # hence making the test fail.
1480 have_gmp=yes
1481 fi
1483 # Specify a location for gmp
1484 AC_ARG_WITH(gmp-dir,
1485 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1486 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1487 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1489 AC_ARG_WITH(gmp,
1490 [AS_HELP_STRING([--with-gmp=PATH],
1491 [specify prefix directory for the installed GMP package.
1492 Equivalent to --with-gmp-include=PATH/include
1493 plus --with-gmp-lib=PATH/lib])])
1494 AC_ARG_WITH(gmp-include,
1495 [AS_HELP_STRING([--with-gmp-include=PATH],
1496 [specify directory for installed GMP include files])])
1497 AC_ARG_WITH(gmp-lib,
1498 [AS_HELP_STRING([--with-gmp-lib=PATH],
1499 [specify directory for the installed GMP library])])
1502 if test "x$with_gmp" != x; then
1503 gmplibs="-L$with_gmp/lib $gmplibs"
1504 gmpinc="-I$with_gmp/include $gmpinc"
1505 fi
1506 if test "x$with_gmp_include" != x; then
1507 gmpinc="-I$with_gmp_include $gmpinc"
1508 fi
1509 if test "x$with_gmp_lib" != x; then
1510 gmplibs="-L$with_gmp_lib $gmplibs"
1511 fi
1512 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1513 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1514 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1515 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1516 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1517 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1518 # Do not test the gmp version. Assume that it is sufficient, since
1519 # it is in the source tree, and the library has not been built yet
1520 # but it would be included on the link line in the version check below
1521 # hence making the test fail.
1522 have_gmp=yes
1523 fi
1525 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1526 have_gmp=yes
1527 saved_CFLAGS="$CFLAGS"
1528 CFLAGS="$CFLAGS $gmpinc"
1529 # Check for the recommended and required versions of GMP.
1530 AC_MSG_CHECKING([for the correct version of gmp.h])
1531 AC_TRY_COMPILE([#include "gmp.h"],[
1532 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1533 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1534 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1535 choke me
1536 #endif
1537 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1538 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1539 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1540 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1541 choke me
1542 #endif
1543 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1544 [AC_MSG_RESULT([no]); have_gmp=no])
1546 # If we have GMP, check the MPFR version.
1547 if test x"$have_gmp" = xyes; then
1548 # Check for the recommended and required versions of MPFR.
1549 AC_MSG_CHECKING([for the correct version of mpfr.h])
1550 AC_TRY_COMPILE([#include <gmp.h>
1551 #include <mpfr.h>],[
1552 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1553 choke me
1554 #endif
1555 ], [AC_TRY_COMPILE([#include <gmp.h>
1556 #include <mpfr.h>],[
1557 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1558 choke me
1559 #endif
1560 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1561 [AC_MSG_RESULT([no]); have_gmp=no])
1562 fi
1564 # Check for the MPC header version.
1565 if test x"$have_gmp" = xyes ; then
1566 # Check for the recommended and required versions of MPC.
1567 AC_MSG_CHECKING([for the correct version of mpc.h])
1568 AC_TRY_COMPILE([#include <mpc.h>],[
1569 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1570 choke me
1571 #endif
1572 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1573 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1574 choke me
1575 #endif
1576 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1577 [AC_MSG_RESULT([no]); have_gmp=no])
1578 fi
1580 # Now check the MPFR library.
1581 if test x"$have_gmp" = xyes; then
1582 saved_LIBS="$LIBS"
1583 LIBS="$LIBS $gmplibs"
1584 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1585 AC_TRY_LINK([#include <mpc.h>],[
1586 mpfr_t n;
1587 mpfr_t x;
1588 mpc_t c;
1589 int t;
1590 mpfr_init (n);
1591 mpfr_init (x);
1592 mpfr_atan2 (n, n, x, GMP_RNDN);
1593 mpfr_erfc (n, x, GMP_RNDN);
1594 mpfr_subnormalize (x, t, GMP_RNDN);
1595 mpfr_clear(n);
1596 mpfr_clear(x);
1597 mpc_init2 (c, 53);
1598 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1599 mpc_cosh (c, c, MPC_RNDNN);
1600 mpc_pow (c, c, c, MPC_RNDNN);
1601 mpc_acosh (c, c, MPC_RNDNN);
1602 mpc_clear (c);
1603 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1604 LIBS="$saved_LIBS"
1605 fi
1607 CFLAGS="$saved_CFLAGS"
1609 # The library versions listed in the error message below should match
1610 # the HARD-minimums enforced above.
1611 if test x$have_gmp != xyes; then
1612 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1613 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1614 their locations. Source code for these libraries can be found at
1615 their respective hosting sites as well as at
1616 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1617 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1618 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1619 make sure that you have installed both the libraries and the header
1620 files. They may be located in separate packages.])
1621 fi
1622 fi
1624 # Flags needed for both GMP, MPFR and/or MPC.
1625 AC_SUBST(gmplibs)
1626 AC_SUBST(gmpinc)
1627 AC_SUBST(extra_mpfr_configure_flags)
1628 AC_SUBST(extra_mpc_gmp_configure_flags)
1629 AC_SUBST(extra_mpc_mpfr_configure_flags)
1630 AC_SUBST(extra_isl_gmp_configure_flags)
1632 # Libraries to use for stage1 or when not bootstrapping.
1633 AC_ARG_WITH(stage1-libs,
1634 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1635 [if test "$withval" = "no" -o "$withval" = "yes"; then
1636 stage1_libs=
1637 else
1638 stage1_libs=$withval
1639 fi],
1640 [stage1_libs=])
1641 AC_SUBST(stage1_libs)
1643 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1644 # default is yes if gcc is being built; no otherwise. The reason for
1645 # this default is that gdb is sometimes linked against GNU Source
1646 # Highlight, which is a shared library that uses C++ exceptions. In
1647 # this case, -static-libstdc++ will cause crashes.
1648 AC_ARG_WITH(static-standard-libraries,
1649 [AS_HELP_STRING([--with-static-standard-libraries],
1650 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1651 [], [with_static_standard_libraries=auto])
1652 if test "$with_static_standard_libraries" = auto; then
1653 with_static_standard_libraries=$have_compiler
1654 fi
1656 # Linker flags to use for stage1 or when not bootstrapping.
1657 AC_ARG_WITH(stage1-ldflags,
1658 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1659 [if test "$withval" = "no" -o "$withval" = "yes"; then
1660 stage1_ldflags=
1661 else
1662 stage1_ldflags=$withval
1663 fi],
1664 [stage1_ldflags=
1665 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1666 # if supported. But if the user explicitly specified the libraries to use,
1667 # trust that they are doing what they want.
1668 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1669 -a "$have_static_libs" = yes; then
1670 stage1_ldflags="-static-libstdc++ -static-libgcc"
1671 fi])
1672 AC_SUBST(stage1_ldflags)
1674 # Libraries to use for stage2 and later builds.
1675 AC_ARG_WITH(boot-libs,
1676 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1677 [if test "$withval" = "no" -o "$withval" = "yes"; then
1678 poststage1_libs=
1679 else
1680 poststage1_libs=$withval
1681 fi],
1682 [poststage1_libs=])
1683 AC_SUBST(poststage1_libs)
1685 # Linker flags to use for stage2 and later builds.
1686 AC_ARG_WITH(boot-ldflags,
1687 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1688 [linker flags for stage2 and later])],
1689 [if test "$withval" = "no" -o "$withval" = "yes"; then
1690 poststage1_ldflags=
1691 else
1692 poststage1_ldflags=$withval
1693 fi],
1694 [poststage1_ldflags=
1695 # In stages 2 and 3, default to linking libstdc++ and libgcc
1696 # statically. But if the user explicitly specified the libraries to
1697 # use, trust that they are doing what they want.
1698 if test "$poststage1_libs" = ""; then
1699 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1700 fi])
1701 AC_SUBST(poststage1_ldflags)
1703 # GCC GRAPHITE dependency isl.
1704 # Basic setup is inlined here, actual checks are in config/isl.m4
1706 AC_ARG_WITH(isl,
1707 [AS_HELP_STRING(
1708 [--with-isl=PATH],
1709 [Specify prefix directory for the installed isl package.
1710 Equivalent to --with-isl-include=PATH/include
1711 plus --with-isl-lib=PATH/lib])])
1713 # Treat --without-isl as a request to disable
1714 # GRAPHITE support and skip all following checks.
1715 if test "x$with_isl" != "xno"; then
1716 # Check for isl
1717 dnl Provide configure switches and initialize islinc & isllibs
1718 dnl with user input.
1719 ISL_INIT_FLAGS
1720 dnl The versions of isl that work for Graphite
1721 ISL_CHECK_VERSION()
1722 dnl Only execute fail-action, if isl has been requested.
1723 ISL_IF_FAILED([
1724 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1725 fi
1727 # If the isl check failed, disable builds of in-tree variant of isl
1728 if test "x$with_isl" = xno ||
1729 test "x$gcc_cv_isl" = xno; then
1730 noconfigdirs="$noconfigdirs isl"
1731 islinc=
1732 fi
1734 AC_SUBST(isllibs)
1735 AC_SUBST(islinc)
1737 # Check for LTO support.
1738 AC_ARG_ENABLE(lto,
1739 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1740 enable_lto=$enableval,
1741 enable_lto=yes; default_enable_lto=yes)
1743 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1744 build_lto_plugin=yes
1745 ],[if test x"$default_enable_lto" = x"yes" ; then
1746 case $target in
1747 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1748 # On other non-ELF platforms, LTO has yet to be validated.
1749 *) enable_lto=no ;;
1750 esac
1751 else
1752 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1753 # It would also be nice to check the binutils support, but we don't
1754 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1755 # warn during gcc/ subconfigure; unless you're bootstrapping with
1756 # -flto it won't be needed until after installation anyway.
1757 case $target in
1758 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1759 *) if test x"$enable_lto" = x"yes"; then
1760 AC_MSG_ERROR([LTO support is not enabled for this target.])
1761 fi
1762 ;;
1763 esac
1764 fi
1765 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1766 # Build it unless LTO was explicitly disabled.
1767 case $target in
1768 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1769 *) ;;
1770 esac
1771 ])
1773 AC_ARG_ENABLE(linker-plugin-configure-flags,
1774 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1775 [additional flags for configuring linker plugins @<:@none@:>@])],
1776 extra_linker_plugin_configure_flags=$enableval,
1777 extra_linker_plugin_configure_flags=)
1778 AC_SUBST(extra_linker_plugin_configure_flags)
1779 AC_ARG_ENABLE(linker-plugin-flags,
1780 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1781 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1782 extra_linker_plugin_flags=$enableval,
1783 extra_linker_plugin_flags=)
1784 AC_SUBST(extra_linker_plugin_flags)
1786 # Enable --enable-host-shared.
1787 # Checked early to determine whether jit is an 'all' language
1788 AC_ARG_ENABLE(host-shared,
1789 [AS_HELP_STRING([--enable-host-shared],
1790 [build host code as shared libraries])],
1791 [host_shared=$enableval], [host_shared=no])
1792 AC_SUBST(host_shared)
1794 # By default, C and C++ are the only stage 1 languages.
1795 stage1_languages=,c,
1797 # Target libraries that we bootstrap.
1798 bootstrap_target_libs=,target-libgcc,
1800 # Figure out what language subdirectories are present.
1801 # Look if the user specified --enable-languages="..."; if not, use
1802 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1803 # go away some day.
1804 # NB: embedded tabs in this IF block -- do not untabify
1805 if test -d ${srcdir}/gcc; then
1806 if test x"${enable_languages+set}" != xset; then
1807 if test x"${LANGUAGES+set}" = xset; then
1808 enable_languages="${LANGUAGES}"
1809 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1810 else
1811 enable_languages=default
1812 fi
1813 else
1814 if test x"${enable_languages}" = x ||
1815 test x"${enable_languages}" = xyes;
1816 then
1817 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1818 exit 1
1819 fi
1820 fi
1821 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1823 # 'f95' is the old name for the 'fortran' language. We issue a warning
1824 # and make the substitution.
1825 case ,${enable_languages}, in
1826 *,f95,*)
1827 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1828 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1829 ;;
1830 esac
1832 # If bootstrapping, C++ must be enabled.
1833 case ",$enable_languages,:$enable_bootstrap" in
1834 *,c++,*:*) ;;
1835 *:yes)
1836 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1837 enable_languages="${enable_languages},c++"
1838 else
1839 AC_MSG_ERROR([bootstrapping requires c++ sources])
1840 fi
1841 ;;
1842 esac
1844 # First scan to see if an enabled language requires some other language.
1845 # We assume that a given config-lang.in will list all the language
1846 # front ends it requires, even if some are required indirectly.
1847 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1848 case ${lang_frag} in
1849 ..) ;;
1850 # The odd quoting in the next line works around
1851 # an apparent bug in bash 1.12 on linux.
1852 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1853 *)
1854 # From the config-lang.in, get $language, $lang_requires, and
1855 # $lang_requires_boot_languages.
1856 language=
1857 lang_requires=
1858 lang_requires_boot_languages=
1859 # set srcdir during sourcing lang_frag to the gcc dir.
1860 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1861 # polutes this shell
1862 saved_srcdir=${srcdir}
1863 srcdir=${srcdir}/gcc . ${lang_frag}
1864 srcdir=${saved_srcdir}
1865 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1866 case ,${enable_languages}, in
1867 *,$other,*) ;;
1868 *,default,*) ;;
1869 *,all,*) ;;
1870 *,$language,*)
1871 echo " \`$other' language required by \`$language'; enabling" 1>&2
1872 enable_languages="${enable_languages},${other}"
1873 ;;
1874 esac
1875 done
1876 for other in ${lang_requires_boot_languages} ; do
1877 if test "$other" != "c"; then
1878 case ,${enable_stage1_languages}, in
1879 *,$other,*) ;;
1880 *,default,*) ;;
1881 *,all,*) ;;
1882 *)
1883 case ,${enable_languages}, in
1884 *,$language,*)
1885 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1886 enable_stage1_languages="$enable_stage1_languages,${other}"
1887 ;;
1888 esac
1889 ;;
1890 esac
1891 fi
1892 done
1893 ;;
1894 esac
1895 done
1897 new_enable_languages=,c,
1899 # If LTO is enabled, add the LTO front end.
1900 if test "$enable_lto" = "yes" ; then
1901 case ,${enable_languages}, in
1902 *,lto,*) ;;
1903 *) enable_languages="${enable_languages},lto" ;;
1904 esac
1905 if test "${build_lto_plugin}" = "yes" ; then
1906 configdirs="$configdirs lto-plugin"
1907 fi
1908 fi
1910 # If we're building an offloading compiler, add the LTO front end.
1911 if test x"$enable_as_accelerator_for" != x ; then
1912 case ,${enable_languages}, in
1913 *,lto,*) ;;
1914 *) enable_languages="${enable_languages},lto" ;;
1915 esac
1916 fi
1918 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
1919 potential_languages=,c,
1921 enabled_target_libs=
1922 disabled_target_libs=
1924 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1925 case ${lang_frag} in
1926 ..) ;;
1927 # The odd quoting in the next line works around
1928 # an apparent bug in bash 1.12 on linux.
1929 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1930 *)
1931 # From the config-lang.in, get $language, $target_libs,
1932 # $lang_dirs, $boot_language, and $build_by_default
1933 language=
1934 target_libs=
1935 lang_dirs=
1936 subdir_requires=
1937 boot_language=no
1938 build_by_default=yes
1939 # set srcdir during sourcing. See above about save & restore
1940 saved_srcdir=${srcdir}
1941 srcdir=${srcdir}/gcc . ${lang_frag}
1942 srcdir=${saved_srcdir}
1943 if test x${language} = x; then
1944 echo "${lang_frag} doesn't set \$language." 1>&2
1945 exit 1
1946 fi
1948 if test "$language" = "c++"; then
1949 boot_language=yes
1950 fi
1952 add_this_lang=no
1953 # C is always enabled, so no need to add it again
1954 if test "$language" != "c"; then
1955 case ,${enable_languages}, in
1956 *,${language},*)
1957 # Language was explicitly selected; include it
1958 add_this_lang=yes
1959 ;;
1960 *,all,*)
1961 # All languages are enabled
1962 add_this_lang=all
1963 ;;
1964 *,default,*)
1965 # 'default' was selected, select it if it is a default language
1966 add_this_lang=${build_by_default}
1967 ;;
1968 esac
1969 fi
1971 # Disable languages that need other directories if these aren't available.
1972 for i in $subdir_requires; do
1973 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1974 case ${add_this_lang} in
1975 yes)
1976 # Specifically requested language; tell them.
1977 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1978 ;;
1979 all)
1980 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
1981 add_this_lang=unsupported
1982 ;;
1983 *)
1984 # Silently disable.
1985 add_this_lang=unsupported
1986 ;;
1987 esac
1988 done
1990 # Disable Ada if no preexisting GNAT is available.
1991 case ${add_this_lang}:${language}:${have_gnat} in
1992 yes:ada:no)
1993 # Specifically requested language; tell them.
1994 AC_MSG_ERROR([GNAT is required to build $language])
1995 ;;
1996 all:ada:no)
1997 AC_MSG_WARN([GNAT is required to build $language])
1998 add_this_lang=unsupported
1999 ;;
2000 *:ada:no)
2001 # Silently disable.
2002 add_this_lang=unsupported
2003 ;;
2004 esac
2006 # Disable jit if -enable-host-shared not specified
2007 case ${add_this_lang}:${language}:${host_shared} in
2008 yes:jit:no)
2009 # PR jit/64780: explicitly specify --enable-host-shared
2010 AC_MSG_ERROR([
2011 Enabling language "jit" requires --enable-host-shared.
2013 --enable-host-shared typically slows the rest of the compiler down by
2014 a few %, so you must explicitly enable it.
2016 If you want to build both the jit and the regular compiler, it is often
2017 best to do this via two separate configure/builds, in separate
2018 directories, to avoid imposing the performance cost of
2019 --enable-host-shared on the regular compiler.])
2020 ;;
2021 all:jit:no)
2022 AC_MSG_WARN([--enable-host-shared required to build $language])
2023 add_this_lang=unsupported
2024 ;;
2025 *:jit:no)
2026 # Silently disable.
2027 add_this_lang=unsupported
2028 ;;
2029 esac
2031 # Disable a language that is unsupported by the target.
2032 case "${add_this_lang}: $unsupported_languages " in
2033 no:*) ;;
2034 unsupported:*) ;;
2035 *:*" $language "*)
2036 AC_MSG_WARN([${language} not supported for this target])
2037 add_this_lang=unsupported
2038 ;;
2039 esac
2041 case $add_this_lang in
2042 unsupported)
2043 # Remove language-dependent dirs.
2044 disabled_target_libs="$disabled_target_libs $target_libs"
2045 noconfigdirs="$noconfigdirs $lang_dirs"
2046 ;;
2047 no)
2048 # Remove language-dependent dirs; still show language as supported.
2049 disabled_target_libs="$disabled_target_libs $target_libs"
2050 noconfigdirs="$noconfigdirs $lang_dirs"
2051 potential_languages="${potential_languages}${language},"
2052 ;;
2053 all|yes)
2054 new_enable_languages="${new_enable_languages}${language},"
2055 potential_languages="${potential_languages}${language},"
2056 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2057 enabled_target_libs="$enabled_target_libs $target_libs"
2058 case "${boot_language}:,$enable_stage1_languages," in
2059 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2060 # Add to (comma-separated) list of stage 1 languages.
2061 case ",$stage1_languages," in
2062 *,$language,* | ,yes, | ,all,) ;;
2063 *) stage1_languages="${stage1_languages}${language}," ;;
2064 esac
2065 # We need to bootstrap any supporting libraries.
2066 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2067 ;;
2068 esac
2069 ;;
2070 esac
2071 ;;
2072 esac
2073 done
2075 # Add target libraries which are only needed for disabled languages
2076 # to noconfigdirs.
2077 if test -n "$disabled_target_libs"; then
2078 for dir in $disabled_target_libs; do
2079 case " $enabled_target_libs " in
2080 *" ${dir} "*) ;;
2081 *) noconfigdirs="$noconfigdirs $dir" ;;
2082 esac
2083 done
2084 fi
2086 AC_ARG_ENABLE(stage1-languages,
2087 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2088 [choose additional languages to build during
2089 stage1. Mostly useful for compiler development])],
2090 [case ,${enable_stage1_languages}, in
2091 ,no,|,,)
2092 # Set it to something that will have no effect in the loop below
2093 enable_stage1_languages=c ;;
2094 ,yes,)
2095 enable_stage1_languages=`echo $new_enable_languages | \
2096 sed -e "s/^,//" -e "s/,$//" ` ;;
2097 *,all,*)
2098 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2099 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2100 esac
2102 # Add "good" languages from enable_stage1_languages to stage1_languages,
2103 # while "bad" languages go in missing_languages. Leave no duplicates.
2104 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2105 case $potential_languages in
2106 *,$i,*)
2107 case $stage1_languages in
2108 *,$i,*) ;;
2109 *) stage1_languages="$stage1_languages$i," ;;
2110 esac ;;
2111 *)
2112 case $missing_languages in
2113 *,$i,*) ;;
2114 *) missing_languages="$missing_languages$i," ;;
2115 esac ;;
2116 esac
2117 done])
2119 # Remove leading/trailing commas that were added for simplicity
2120 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2121 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2122 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2123 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2125 if test "x$missing_languages" != x; then
2126 AC_MSG_ERROR([
2127 The following requested languages could not be built: ${missing_languages}
2128 Supported languages are: ${potential_languages}])
2129 fi
2130 if test "x$new_enable_languages" != "x$enable_languages"; then
2131 echo The following languages will be built: ${new_enable_languages}
2132 enable_languages="$new_enable_languages"
2133 fi
2135 AC_SUBST(stage1_languages)
2136 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2137 fi
2139 # Handle --disable-<component> generically.
2140 for dir in $configdirs $build_configdirs $target_configdirs ; do
2141 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2142 varname=`echo $dirname | sed -e s/+/_/g`
2143 if eval test x\${enable_${varname}} "=" xno ; then
2144 noconfigdirs="$noconfigdirs $dir"
2145 fi
2146 done
2148 # Check for Boehm's garbage collector
2149 AC_ARG_ENABLE(objc-gc,
2150 [AS_HELP_STRING([--enable-objc-gc],
2151 [enable use of Boehm's garbage collector with the
2152 GNU Objective-C runtime])])
2153 AC_ARG_WITH([target-bdw-gc],
2154 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2155 [specify prefix directory for installed bdw-gc package.
2156 Equivalent to --with-target-bdw-gc-include=PATH/include
2157 plus --with-target-bdw-gc-lib=PATH/lib])])
2158 AC_ARG_WITH([target-bdw-gc-include],
2159 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2160 [specify directories for installed bdw-gc include files])])
2161 AC_ARG_WITH([target-bdw-gc-lib],
2162 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2163 [specify directories for installed bdw-gc library])])
2165 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2166 AC_MSG_CHECKING([for bdw garbage collector])
2167 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2168 dnl no bdw-gw options, assume default locations
2169 AC_MSG_RESULT([using bdw-gc in default locations])
2170 else
2171 dnl bdw-gw options, first error checking, complete checking in libobjc
2172 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2173 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2174 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2175 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2176 else
2177 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2178 fi
2179 fi
2180 esac
2182 # Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2183 case ,${enable_languages}, in
2184 *,c++,*)
2185 # Disable libitm, libsanitizer if we're not building libstdc++
2186 case "${noconfigdirs}" in
2187 *target-libstdc++-v3*)
2188 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2189 ;;
2190 *) ;;
2191 esac
2192 ;;
2193 *)
2194 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2195 ;;
2196 esac
2198 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2199 # $build_configdirs and $target_configdirs.
2200 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2202 notsupp=""
2203 for dir in . $skipdirs $noconfigdirs ; do
2204 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2205 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2206 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2207 if test -r $srcdir/$dirname/configure ; then
2208 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2209 true
2210 else
2211 notsupp="$notsupp $dir"
2212 fi
2213 fi
2214 fi
2215 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2216 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2217 if test -r $srcdir/$dirname/configure ; then
2218 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2219 true
2220 else
2221 notsupp="$notsupp $dir"
2222 fi
2223 fi
2224 fi
2225 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2226 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2227 if test -r $srcdir/$dirname/configure ; then
2228 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2229 true
2230 else
2231 notsupp="$notsupp $dir"
2232 fi
2233 fi
2234 fi
2235 done
2237 # Quietly strip out all directories which aren't configurable in this tree.
2238 # This relies on all configurable subdirectories being autoconfiscated, which
2239 # is now the case.
2240 build_configdirs_all="$build_configdirs"
2241 build_configdirs=
2242 for i in ${build_configdirs_all} ; do
2243 j=`echo $i | sed -e s/build-//g`
2244 if test -f ${srcdir}/$j/configure ; then
2245 build_configdirs="${build_configdirs} $i"
2246 fi
2247 done
2249 configdirs_all="$configdirs"
2250 configdirs=
2251 for i in ${configdirs_all} ; do
2252 if test -f ${srcdir}/$i/configure ; then
2253 configdirs="${configdirs} $i"
2254 fi
2255 done
2257 target_configdirs_all="$target_configdirs"
2258 target_configdirs=
2259 for i in ${target_configdirs_all} ; do
2260 j=`echo $i | sed -e s/target-//g`
2261 if test -f ${srcdir}/$j/configure ; then
2262 target_configdirs="${target_configdirs} $i"
2263 fi
2264 done
2266 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2267 # so we have to add it after the preceding checks.
2268 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2269 then
2270 case " $configdirs " in
2271 *" libiberty "*)
2272 # If we can build libiberty, we can also build libiberty-linker-plugin.
2273 configdirs="$configdirs libiberty-linker-plugin"
2274 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2275 --with-libiberty=../libiberty-linker-plugin";;
2276 *)
2277 AC_MSG_ERROR([libiberty missing]);;
2278 esac
2279 fi
2281 # Sometimes we have special requirements for the host libiberty.
2282 extra_host_libiberty_configure_flags=
2283 extra_host_zlib_configure_flags=
2284 case " $configdirs " in
2285 *" lto-plugin "* | *" libcc1 "*)
2286 # When these are to be built as shared libraries, the same applies to
2287 # libiberty.
2288 extra_host_libiberty_configure_flags=--enable-shared
2289 ;;
2290 *" bfd "*)
2291 # When bfd is to be built as a shared library, the same applies to
2292 # zlib.
2293 if test "$enable_shared" = "yes"; then
2294 extra_host_zlib_configure_flags=--enable-host-shared
2295 fi
2296 ;;
2297 esac
2298 AC_SUBST(extra_host_libiberty_configure_flags)
2299 AC_SUBST(extra_host_zlib_configure_flags)
2301 # Produce a warning message for the subdirs we can't configure.
2302 # This isn't especially interesting in the Cygnus tree, but in the individual
2303 # FSF releases, it's important to let people know when their machine isn't
2304 # supported by the one or two programs in a package.
2306 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2307 # If $appdirs is non-empty, at least one of those directories must still
2308 # be configured, or we error out. (E.g., if the gas release supports a
2309 # specified target in some subdirs but not the gas subdir, we shouldn't
2310 # pretend that all is well.)
2311 if test -n "$appdirs" ; then
2312 for dir in $appdirs ; do
2313 if test -r $dir/Makefile.in ; then
2314 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2315 appdirs=""
2316 break
2317 fi
2318 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2319 appdirs=""
2320 break
2321 fi
2322 fi
2323 done
2324 if test -n "$appdirs" ; then
2325 echo "*** This configuration is not supported by this package." 1>&2
2326 exit 1
2327 fi
2328 fi
2329 # Okay, some application will build, or we don't care to check. Still
2330 # notify of subdirs not getting built.
2331 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2332 echo " ${notsupp}" 1>&2
2333 echo " (Any other directories should still work fine.)" 1>&2
2334 fi
2336 case "$host" in
2337 *msdosdjgpp*)
2338 enable_gdbtk=no ;;
2339 esac
2341 # To find our prefix, in gcc_cv_tool_prefix.
2342 ACX_TOOL_DIRS
2344 copy_dirs=
2346 AC_ARG_WITH([build-sysroot],
2347 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2348 [use sysroot as the system root during the build])],
2349 [if test x"$withval" != x ; then
2350 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2351 fi],
2352 [SYSROOT_CFLAGS_FOR_TARGET=])
2353 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2355 AC_ARG_WITH([debug-prefix-map],
2356 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2357 [map A to B, C to D ... in debug information])],
2358 [if test x"$withval" != x; then
2359 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2360 for debug_map in $withval; do
2361 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2362 done
2363 fi],
2364 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2365 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2367 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2368 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2369 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2370 # We want to ensure that TARGET libraries (which we know are built with
2371 # gcc) are built with "-O2 -g", so include those options when setting
2372 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2373 if test "x$CFLAGS_FOR_TARGET" = x; then
2374 if test "x${is_cross_compiler}" = xyes; then
2375 CFLAGS_FOR_TARGET="-g -O2"
2376 else
2377 CFLAGS_FOR_TARGET=$CFLAGS
2378 case " $CFLAGS " in
2379 *" -O2 "*) ;;
2380 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2381 esac
2382 case " $CFLAGS " in
2383 *" -g "* | *" -g3 "*) ;;
2384 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2385 esac
2386 fi
2387 fi
2388 AC_SUBST(CFLAGS_FOR_TARGET)
2390 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2391 if test "x${is_cross_compiler}" = xyes; then
2392 CXXFLAGS_FOR_TARGET="-g -O2"
2393 else
2394 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2395 case " $CXXFLAGS " in
2396 *" -O2 "*) ;;
2397 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2398 esac
2399 case " $CXXFLAGS " in
2400 *" -g "* | *" -g3 "*) ;;
2401 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2402 esac
2403 fi
2404 fi
2405 AC_SUBST(CXXFLAGS_FOR_TARGET)
2407 AC_SUBST(LDFLAGS_FOR_TARGET)
2409 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2410 # the named directory are copied to $(tooldir)/sys-include.
2411 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2412 if test x${is_cross_compiler} = xno ; then
2413 echo 1>&2 '***' --with-headers is only supported when cross compiling
2414 exit 1
2415 fi
2416 if test x"${with_headers}" != xyes ; then
2417 x=${gcc_cv_tool_prefix}
2418 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2419 fi
2420 fi
2422 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2423 # the name directories are copied to $(tooldir)/lib. Multiple directories
2424 # are permitted.
2425 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2426 if test x${is_cross_compiler} = xno ; then
2427 echo 1>&2 '***' --with-libs is only supported when cross compiling
2428 exit 1
2429 fi
2430 if test x"${with_libs}" != xyes ; then
2431 # Copy the libraries in reverse order, so that files in the first named
2432 # library override files in subsequent libraries.
2433 x=${gcc_cv_tool_prefix}
2434 for l in ${with_libs}; do
2435 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2436 done
2437 fi
2438 fi
2440 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2441 #
2442 # This is done by determining whether or not the appropriate directory
2443 # is available, and by checking whether or not specific configurations
2444 # have requested that this magic not happen.
2445 #
2446 # The command line options always override the explicit settings in
2447 # configure.ac, and the settings in configure.ac override this magic.
2448 #
2449 # If the default for a toolchain is to use GNU as and ld, and you don't
2450 # want to do that, then you should use the --without-gnu-as and
2451 # --without-gnu-ld options for the configure script. Similarly, if
2452 # the default is to use the included zlib and you don't want to do that,
2453 # you should use the --with-system-zlib option for the configure script.
2455 if test x${use_gnu_as} = x &&
2456 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2457 with_gnu_as=yes
2458 extra_host_args="$extra_host_args --with-gnu-as"
2459 fi
2461 if test x${use_gnu_ld} = x &&
2462 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2463 with_gnu_ld=yes
2464 extra_host_args="$extra_host_args --with-gnu-ld"
2465 fi
2467 if test x${use_included_zlib} = x &&
2468 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2469 :
2470 else
2471 with_system_zlib=yes
2472 extra_host_args="$extra_host_args --with-system-zlib"
2473 fi
2475 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2476 # can detect this case.
2478 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2479 with_newlib=yes
2480 extra_host_args="$extra_host_args --with-newlib"
2481 fi
2483 # Handle ${copy_dirs}
2484 set fnord ${copy_dirs}
2485 shift
2486 while test $# != 0 ; do
2487 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2488 :
2489 else
2490 echo Copying $1 to $2
2492 # Use the install script to create the directory and all required
2493 # parent directories.
2494 if test -d $2 ; then
2495 :
2496 else
2497 echo >config.temp
2498 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2499 fi
2501 # Copy the directory, assuming we have tar.
2502 # FIXME: Should we use B in the second tar? Not all systems support it.
2503 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2505 # It is the responsibility of the user to correctly adjust all
2506 # symlinks. If somebody can figure out how to handle them correctly
2507 # here, feel free to add the code.
2509 echo $1 > $2/COPIED
2510 fi
2511 shift; shift
2512 done
2514 # Determine a target-dependent exec_prefix that the installed
2515 # gcc will search in. Keep this list sorted by triplet, with
2516 # the *-*-osname triplets last.
2517 md_exec_prefix=
2518 case "${target}" in
2519 i[[34567]]86-pc-msdosdjgpp*)
2520 md_exec_prefix=/dev/env/DJDIR/bin
2521 ;;
2522 *-*-hpux* | \
2523 *-*-nto-qnx* | \
2524 *-*-solaris2*)
2525 md_exec_prefix=/usr/ccs/bin
2526 ;;
2527 esac
2529 extra_arflags_for_target=
2530 extra_nmflags_for_target=
2531 extra_ranlibflags_for_target=
2532 target_makefile_frag=/dev/null
2533 case "${target}" in
2534 spu-*-*)
2535 target_makefile_frag="config/mt-spu"
2536 ;;
2537 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2538 target_makefile_frag="config/mt-sde"
2539 ;;
2540 mipsisa*-*-elfoabi*)
2541 target_makefile_frag="config/mt-mips-elfoabi"
2542 ;;
2543 mips*-*-*linux* | mips*-*-gnu*)
2544 target_makefile_frag="config/mt-mips-gnu"
2545 ;;
2546 nios2-*-elf*)
2547 target_makefile_frag="config/mt-nios2-elf"
2548 ;;
2549 *-*-linux-android*)
2550 target_makefile_frag="config/mt-android"
2551 ;;
2552 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2553 target_makefile_frag="config/mt-gnu"
2554 ;;
2555 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2556 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2557 # commands to handle both 32-bit and 64-bit objects. These flags are
2558 # harmless if we're using GNU nm or ar.
2559 extra_arflags_for_target=" -X32_64"
2560 extra_nmflags_for_target=" -B -X32_64"
2561 ;;
2562 esac
2564 alphaieee_frag=/dev/null
2565 case $target in
2566 alpha*-*-*)
2567 # This just makes sure to use the -mieee option to build target libs.
2568 # This should probably be set individually by each library.
2569 alphaieee_frag="config/mt-alphaieee"
2570 ;;
2571 esac
2573 # If --enable-target-optspace always use -Os instead of -O2 to build
2574 # the target libraries, similarly if it is not specified, use -Os
2575 # on selected platforms.
2576 ospace_frag=/dev/null
2577 case "${enable_target_optspace}:${target}" in
2578 yes:*)
2579 ospace_frag="config/mt-ospace"
2580 ;;
2581 :d30v-*)
2582 ospace_frag="config/mt-d30v"
2583 ;;
2584 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2585 ospace_frag="config/mt-ospace"
2586 ;;
2587 no:* | :*)
2588 ;;
2589 *)
2590 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2591 ;;
2592 esac
2594 # Some systems (e.g., one of the i386-aix systems the gas testers are
2595 # using) don't handle "\$" correctly, so don't use it here.
2596 tooldir='${exec_prefix}'/${target_noncanonical}
2597 build_tooldir=${tooldir}
2599 # Create a .gdbinit file which runs the one in srcdir
2600 # and tells GDB to look there for source files.
2602 if test -r ${srcdir}/.gdbinit ; then
2603 case ${srcdir} in
2604 .) ;;
2605 *) cat > ./.gdbinit <<EOF
2606 # ${NO_EDIT}
2607 dir ${srcdir}
2608 dir .
2609 source ${srcdir}/.gdbinit
2610 EOF
2611 ;;
2612 esac
2613 fi
2615 # Make sure that the compiler is able to generate an executable. If it
2616 # can't, we are probably in trouble. We don't care whether we can run the
2617 # executable--we might be using a cross compiler--we only care whether it
2618 # can be created. At this point the main configure script has set CC.
2619 we_are_ok=no
2620 echo "int main () { return 0; }" > conftest.c
2621 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2622 if test $? = 0 ; then
2623 if test -s conftest || test -s conftest.exe ; then
2624 we_are_ok=yes
2625 fi
2626 fi
2627 case $we_are_ok in
2628 no)
2629 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2630 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2631 rm -f conftest*
2632 exit 1
2633 ;;
2634 esac
2635 rm -f conftest*
2637 # Decide which environment variable is used to find dynamic libraries.
2638 case "${host}" in
2639 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2640 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2641 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2642 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2643 esac
2645 # On systems where the dynamic library environment variable is PATH,
2646 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2647 # built executables to PATH.
2648 if test "$RPATH_ENVVAR" = PATH; then
2649 GCC_SHLIB_SUBDIR=/shlib
2650 else
2651 GCC_SHLIB_SUBDIR=
2652 fi
2654 # Adjust the toplevel makefile according to whether bootstrap was selected.
2655 case $enable_bootstrap in
2656 yes)
2657 bootstrap_suffix=bootstrap
2658 BUILD_CONFIG=bootstrap-debug
2659 ;;
2660 no)
2661 bootstrap_suffix=no-bootstrap
2662 BUILD_CONFIG=
2663 ;;
2664 esac
2666 AC_MSG_CHECKING(for default BUILD_CONFIG)
2668 AC_ARG_WITH([build-config],
2669 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2670 [use config/NAME.mk build configuration])],
2671 [case $with_build_config in
2672 yes) with_build_config= ;;
2673 no) with_build_config= BUILD_CONFIG= ;;
2674 esac])
2676 if test "x${with_build_config}" != x; then
2677 BUILD_CONFIG=$with_build_config
2678 else
2679 case $BUILD_CONFIG in
2680 bootstrap-debug)
2681 if echo "int f (void) { return 0; }" > conftest.c &&
2682 ${CC} -c conftest.c &&
2683 mv conftest.o conftest.o.g0 &&
2684 ${CC} -c -g conftest.c &&
2685 mv conftest.o conftest.o.g &&
2686 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2687 :
2688 else
2689 BUILD_CONFIG=
2690 fi
2691 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2692 ;;
2693 esac
2694 fi
2695 AC_MSG_RESULT($BUILD_CONFIG)
2696 AC_SUBST(BUILD_CONFIG)
2698 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2699 AC_MSG_CHECKING([for --enable-vtable-verify])
2700 AC_ARG_ENABLE(vtable-verify,
2701 [AS_HELP_STRING([--enable-vtable-verify],
2702 [Enable vtable verification feature])],
2703 [case "$enableval" in
2704 yes) enable_vtable_verify=yes ;;
2705 no) enable_vtable_verify=no ;;
2706 *) enable_vtable_verify=no;;
2707 esac],
2708 [enable_vtable_verify=no])
2709 AC_MSG_RESULT($enable_vtable_verify)
2711 # Record target_configdirs and the configure arguments for target and
2712 # build configuration in Makefile.
2713 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2714 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2715 bootstrap_fixincludes=no
2717 # If we are building libgomp, bootstrap it.
2718 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2719 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2720 fi
2722 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2723 # or bootstrap-ubsan, bootstrap it.
2724 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2725 case "$BUILD_CONFIG" in
2726 *bootstrap-asan* | *bootstrap-ubsan* )
2727 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2728 bootstrap_fixincludes=yes
2729 ;;
2730 esac
2731 fi
2733 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2734 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2735 test "$enable_vtable_verify" != no; then
2736 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2737 fi
2739 # Determine whether gdb needs tk/tcl or not.
2740 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2741 # and in that case we want gdb to be built without tk. Ugh!
2742 # In fact I believe gdb is the *only* package directly dependent on tk,
2743 # so we should be able to put the 'maybe's in unconditionally and
2744 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2745 # 100% sure that that's safe though.
2747 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2748 case "$enable_gdbtk" in
2749 no)
2750 GDB_TK="" ;;
2751 yes)
2752 GDB_TK="${gdb_tk}" ;;
2753 *)
2754 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2755 # distro. Eventually someone will fix this and move Insight, nee
2756 # gdbtk to a separate directory.
2757 if test -d ${srcdir}/gdb/gdbtk ; then
2758 GDB_TK="${gdb_tk}"
2759 else
2760 GDB_TK=""
2761 fi
2762 ;;
2763 esac
2764 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2765 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2767 # gdb depends on gnulib, but as nothing else does, only include it if
2768 # gdb is built.
2769 if echo " ${configdirs} " | grep " gdb " > /dev/null 2>&1 ; then
2770 # The Makefile provides the ordering, so it's enough here to add
2771 # gnulib to the list.
2772 configdirs="${configdirs} gnulib"
2773 fi
2775 # Strip out unwanted targets.
2777 # While at that, we remove Makefiles if we were started for recursive
2778 # configuration, so that the top-level Makefile reconfigures them,
2779 # like we used to do when configure itself was recursive.
2781 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2782 # but now we're fixing up the Makefile ourselves with the additional
2783 # commands passed to AC_CONFIG_FILES. Use separate variables
2784 # extrasub-{build,host,target} not because there is any reason to split
2785 # the substitutions up that way, but only to remain below the limit of
2786 # 99 commands in a script, for HP-UX sed.
2788 # Do not nest @if/@endif or @unless/@endunless pairs, because
2789 # configure will not warn you at all.
2791 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2792 yes:yes:*\ gold\ *:*,c++,*) ;;
2793 yes:yes:*\ gold\ *:*)
2794 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2795 ;;
2796 esac
2798 extrasub_build=
2799 for module in ${build_configdirs} ; do
2800 if test -z "${no_recursion}" \
2801 && test -f ${build_subdir}/${module}/Makefile; then
2802 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2803 rm -f ${build_subdir}/${module}/Makefile
2804 fi
2805 extrasub_build="$extrasub_build
2806 /^@if build-$module\$/d
2807 /^@endif build-$module\$/d
2808 /^@unless build-$module\$/,/^@endunless build-$module\$/d
2809 /^@if build-$module-$bootstrap_suffix\$/d
2810 /^@endif build-$module-$bootstrap_suffix\$/d
2811 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
2812 done
2813 extrasub_host=
2814 for module in ${configdirs} ; do
2815 if test -z "${no_recursion}"; then
2816 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2817 if test -f ${file}; then
2818 echo 1>&2 "*** removing ${file} to force reconfigure"
2819 rm -f ${file}
2820 fi
2821 done
2822 fi
2823 case ${module},${bootstrap_fixincludes} in
2824 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2825 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2826 esac
2827 extrasub_host="$extrasub_host
2828 /^@if $module\$/d
2829 /^@endif $module\$/d
2830 /^@unless $module\$/,/^@endunless $module\$/d
2831 /^@if $module-$host_bootstrap_suffix\$/d
2832 /^@endif $module-$host_bootstrap_suffix\$/d
2833 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
2834 done
2835 extrasub_target=
2836 for module in ${target_configdirs} ; do
2837 if test -z "${no_recursion}" \
2838 && test -f ${target_subdir}/${module}/Makefile; then
2839 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2840 rm -f ${target_subdir}/${module}/Makefile
2841 fi
2843 # We only bootstrap target libraries listed in bootstrap_target_libs.
2844 case $bootstrap_target_libs in
2845 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2846 *) target_bootstrap_suffix=no-bootstrap ;;
2847 esac
2849 extrasub_target="$extrasub_target
2850 /^@if target-$module\$/d
2851 /^@endif target-$module\$/d
2852 /^@unless target-$module\$/,/^@endunless target-$module\$/d
2853 /^@if target-$module-$target_bootstrap_suffix\$/d
2854 /^@endif target-$module-$target_bootstrap_suffix\$/d
2855 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
2856 done
2858 # Do the final fixup along with target modules.
2859 extrasub_target="$extrasub_target
2860 /^@if /,/^@endif /d
2861 /^@unless /d
2862 /^@endunless /d"
2864 # Create the serialization dependencies. This uses a temporary file.
2866 AC_ARG_ENABLE([serial-configure],
2867 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2868 [force sequential configuration of
2869 sub-packages for the host, target or build
2870 machine, or all sub-packages])])
2872 case ${enable_serial_configure} in
2873 yes)
2874 enable_serial_build_configure=yes
2875 enable_serial_host_configure=yes
2876 enable_serial_target_configure=yes
2877 ;;
2878 esac
2880 # These force 'configure's to be done one at a time, to avoid problems
2881 # with contention over a shared config.cache.
2882 rm -f serdep.tmp
2883 echo '# serdep.tmp' > serdep.tmp
2884 olditem=
2885 test "x${enable_serial_build_configure}" = xyes &&
2886 for item in ${build_configdirs} ; do
2887 case ${olditem} in
2888 "") ;;
2889 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2890 esac
2891 olditem=${item}
2892 done
2893 olditem=
2894 test "x${enable_serial_host_configure}" = xyes &&
2895 for item in ${configdirs} ; do
2896 case ${olditem} in
2897 "") ;;
2898 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2899 esac
2900 olditem=${item}
2901 done
2902 olditem=
2903 test "x${enable_serial_target_configure}" = xyes &&
2904 for item in ${target_configdirs} ; do
2905 case ${olditem} in
2906 "") ;;
2907 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2908 esac
2909 olditem=${item}
2910 done
2911 serialization_dependencies=serdep.tmp
2912 AC_SUBST_FILE(serialization_dependencies)
2914 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2915 # target, nonopt, and variable assignments. These are the ones we
2916 # might not want to pass down to subconfigures. The exception being
2917 # --cache-file=/dev/null, which is used to turn off the use of cache
2918 # files altogether, and which should be passed on to subconfigures.
2919 # Also strip program-prefix, program-suffix, and program-transform-name,
2920 # so that we can pass down a consistent program-transform-name.
2921 baseargs=
2922 tbaseargs=
2923 keep_next=no
2924 skip_next=no
2925 eval "set -- $ac_configure_args"
2926 for ac_arg
2927 do
2928 if test X"$skip_next" = X"yes"; then
2929 skip_next=no
2930 continue
2931 fi
2932 if test X"$keep_next" = X"yes"; then
2933 case $ac_arg in
2934 *\'*)
2935 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2936 esac
2937 baseargs="$baseargs '$ac_arg'"
2938 tbaseargs="$tbaseargs '$ac_arg'"
2939 keep_next=no
2940 continue
2941 fi
2943 # Handle separated arguments. Based on the logic generated by
2944 # autoconf 2.59.
2945 case $ac_arg in
2946 *=* | --config-cache | -C | -disable-* | --disable-* \
2947 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2948 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2949 | -with-* | --with-* | -without-* | --without-* | --x)
2950 separate_arg=no
2951 ;;
2952 -*)
2953 separate_arg=yes
2954 ;;
2955 *)
2956 separate_arg=no
2957 ;;
2958 esac
2960 skip_targ=no
2961 case $ac_arg in
2962 changequote(,)
2963 --with-* | --without-*)
2964 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2966 case $libopt in
2967 *[-_]include)
2968 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2969 ;;
2970 *[-_]lib)
2971 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2972 ;;
2973 *)
2974 lib=$libopt
2975 ;;
2976 esac
2977 changequote([,])
2979 case $lib in
2980 mpc | mpfr | gmp | isl)
2981 # If we're processing --with-$lib, --with-$lib-include or
2982 # --with-$lib-lib, for one of the libs above, and target is
2983 # different from host, don't pass the current argument to any
2984 # target library's configure.
2985 if test x$is_cross_compiler = xyes; then
2986 skip_targ=yes
2987 fi
2988 ;;
2989 esac
2990 ;;
2991 esac
2993 case "$ac_arg" in
2994 --cache-file=/dev/null | \
2995 -cache-file=/dev/null )
2996 # Handled here to avoid the test to skip args below.
2997 baseargs="$baseargs '$ac_arg'"
2998 tbaseargs="$tbaseargs '$ac_arg'"
2999 # Assert: $separate_arg should always be no.
3000 keep_next=$separate_arg
3001 ;;
3002 --no*)
3003 continue
3004 ;;
3005 --c* | \
3006 --sr* | \
3007 --ho* | \
3008 --bu* | \
3009 --t* | \
3010 --program-* | \
3011 -cache_file* | \
3012 -srcdir* | \
3013 -host* | \
3014 -build* | \
3015 -target* | \
3016 -program-prefix* | \
3017 -program-suffix* | \
3018 -program-transform-name* )
3019 skip_next=$separate_arg
3020 continue
3021 ;;
3022 -*)
3023 # An option. Add it.
3024 case $ac_arg in
3025 *\'*)
3026 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3027 esac
3028 baseargs="$baseargs '$ac_arg'"
3029 if test X"$skip_targ" = Xno; then
3030 tbaseargs="$tbaseargs '$ac_arg'"
3031 fi
3032 keep_next=$separate_arg
3033 ;;
3034 *)
3035 # Either a variable assignment, or a nonopt (triplet). Don't
3036 # pass it down; let the Makefile handle this.
3037 continue
3038 ;;
3039 esac
3040 done
3041 # Remove the initial space we just introduced and, as these will be
3042 # expanded by make, quote '$'.
3043 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3045 # Add in --program-transform-name, after --program-prefix and
3046 # --program-suffix have been applied to it. Autoconf has already
3047 # doubled dollar signs and backslashes in program_transform_name; we want
3048 # the backslashes un-doubled, and then the entire thing wrapped in single
3049 # quotes, because this will be expanded first by make and then by the shell.
3050 # Also, because we want to override the logic in subdir configure scripts to
3051 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3052 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3053 ${program_transform_name}
3054 EOF_SED
3055 gcc_transform_name=`cat conftestsed.out`
3056 rm -f conftestsed.out
3057 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3058 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3059 if test "$silent" = yes; then
3060 baseargs="$baseargs --silent"
3061 tbaseargs="$tbaseargs --silent"
3062 fi
3063 baseargs="$baseargs --disable-option-checking"
3064 tbaseargs="$tbaseargs --disable-option-checking"
3066 # Record and document user additions to sub configure arguments.
3067 AC_ARG_VAR([build_configargs],
3068 [additional configure arguments for build directories])
3069 AC_ARG_VAR([host_configargs],
3070 [additional configure arguments for host directories])
3071 AC_ARG_VAR([target_configargs],
3072 [additional configure arguments for target directories])
3074 # For the build-side libraries, we just need to pretend we're native,
3075 # and not use the same cache file. Multilibs are neither needed nor
3076 # desired. We can't even use the same cache file for all build-side
3077 # libraries, as they're compiled differently; some with C, some with
3078 # C++ or with different feature-enabling options.
3079 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3081 # For host modules, accept cache file option, or specification as blank.
3082 case "${cache_file}" in
3083 "") # empty
3084 cache_file_option="" ;;
3085 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3086 cache_file_option="--cache-file=${cache_file}" ;;
3087 *) # relative path
3088 cache_file_option="--cache-file=../${cache_file}" ;;
3089 esac
3091 # Host dirs don't like to share a cache file either, horribly enough.
3092 # This seems to be due to autoconf 2.5x stupidity.
3093 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3095 target_configargs="$target_configargs ${tbaseargs}"
3097 # Passing a --with-cross-host argument lets the target libraries know
3098 # whether they are being built with a cross-compiler or being built
3099 # native. However, it would be better to use other mechanisms to make the
3100 # sorts of decisions they want to make on this basis. Please consider
3101 # this option to be deprecated. FIXME.
3102 if test x${is_cross_compiler} = xyes ; then
3103 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3104 fi
3106 # Special user-friendly check for native x86_64-linux build, if
3107 # multilib is not explicitly enabled.
3108 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3109 x86_64-*linux*:yes:$build:$build:)
3110 # Make sure we have a development environment that handles 32-bit
3111 dev64=no
3112 echo "int main () { return 0; }" > conftest.c
3113 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3114 if test $? = 0 ; then
3115 if test -s conftest || test -s conftest.exe ; then
3116 dev64=yes
3117 fi
3118 fi
3119 rm -f conftest*
3120 if test x${dev64} != xyes ; then
3121 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.])
3122 fi
3123 ;;
3124 esac
3126 # Default to --enable-multilib.
3127 if test x${enable_multilib} = x ; then
3128 target_configargs="--enable-multilib ${target_configargs}"
3129 fi
3131 # Pass --with-newlib if appropriate. Note that target_configdirs has
3132 # changed from the earlier setting of with_newlib.
3133 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3134 target_configargs="--with-newlib ${target_configargs}"
3135 fi
3137 # Different target subdirs use different values of certain variables
3138 # (notably CXX). Worse, multilibs use *lots* of different values.
3139 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3140 # it doesn't automatically accept command-line overrides of them.
3141 # This means it's not safe for target subdirs to share a cache file,
3142 # which is disgusting, but there you have it. Hopefully this can be
3143 # fixed in future. It's still worthwhile to use a cache file for each
3144 # directory. I think.
3146 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3147 # We need to pass --target, as newer autoconf's requires consistency
3148 # for target_alias and gcc doesn't manage it consistently.
3149 target_configargs="--cache-file=./config.cache ${target_configargs}"
3151 FLAGS_FOR_TARGET=
3152 case " $target_configdirs " in
3153 *" newlib "*)
3154 case " $target_configargs " in
3155 *" --with-newlib "*)
3156 case "$target" in
3157 *-cygwin*)
3158 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3159 ;;
3160 esac
3162 # If we're not building GCC, don't discard standard headers.
3163 if test -d ${srcdir}/gcc; then
3164 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3166 if test "${build}" != "${host}"; then
3167 # On Canadian crosses, CC_FOR_TARGET will have already been set
3168 # by `configure', so we won't have an opportunity to add -Bgcc/
3169 # to it. This is right: we don't want to search that directory
3170 # for binaries, but we want the header files in there, so add
3171 # them explicitly.
3172 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3174 # Someone might think of using the pre-installed headers on
3175 # Canadian crosses, in case the installed compiler is not fully
3176 # compatible with the compiler being built. In this case, it
3177 # would be better to flag an error than risking having
3178 # incompatible object files being constructed. We can't
3179 # guarantee that an error will be flagged, but let's hope the
3180 # compiler will do it, when presented with incompatible header
3181 # files.
3182 fi
3183 fi
3185 case "${target}-${is_cross_compiler}" in
3186 i[[3456789]]86-*-linux*-no)
3187 # Here host == target, so we don't need to build gcc,
3188 # so we don't want to discard standard headers.
3189 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3190 ;;
3191 *)
3192 # If we're building newlib, use its generic headers last, but search
3193 # for any libc-related directories first (so make it the last -B
3194 # switch).
3195 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3197 # If we're building libgloss, find the startup file, simulator library
3198 # and linker script.
3199 case " $target_configdirs " in
3200 *" libgloss "*)
3201 # Look for startup file, simulator library and maybe linker script.
3202 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3203 # Look for libnosys.a in case the target needs it.
3204 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3205 # Most targets have the linker script in the source directory.
3206 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3207 ;;
3208 esac
3209 ;;
3210 esac
3211 ;;
3212 esac
3213 ;;
3214 esac
3216 case "$target" in
3217 x86_64-*mingw* | *-w64-mingw*)
3218 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3219 # however, use a symlink named 'mingw' in ${prefix} .
3220 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3221 ;;
3222 *-mingw*)
3223 # MinGW can't be handled as Cygwin above since it does not use newlib.
3224 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3225 ;;
3226 esac
3228 # Allow the user to override the flags for
3229 # our build compiler if desired.
3230 if test x"${build}" = x"${host}" ; then
3231 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3232 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3233 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3234 fi
3236 # On Canadian crosses, we'll be searching the right directories for
3237 # the previously-installed cross compiler, so don't bother to add
3238 # flags for directories within the install tree of the compiler
3239 # being built; programs in there won't even run.
3240 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3241 # Search for pre-installed headers if nothing else fits.
3242 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3243 fi
3245 if test "x${use_gnu_ld}" = x &&
3246 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3247 # Arrange for us to find uninstalled linker scripts.
3248 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3249 fi
3251 # Search for other target-specific linker scripts and such.
3252 case "${target}" in
3253 mep*)
3254 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3255 ;;
3256 esac
3258 # Makefile fragments.
3259 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3260 do
3261 eval fragval=\$$frag
3262 if test $fragval != /dev/null; then
3263 eval $frag=${srcdir}/$fragval
3264 fi
3265 done
3266 AC_SUBST_FILE(host_makefile_frag)
3267 AC_SUBST_FILE(target_makefile_frag)
3268 AC_SUBST_FILE(alphaieee_frag)
3269 AC_SUBST_FILE(ospace_frag)
3271 # Miscellanea: directories, flags, etc.
3272 AC_SUBST(RPATH_ENVVAR)
3273 AC_SUBST(GCC_SHLIB_SUBDIR)
3274 AC_SUBST(tooldir)
3275 AC_SUBST(build_tooldir)
3276 AC_SUBST(CONFIGURE_GDB_TK)
3277 AC_SUBST(GDB_TK)
3278 AC_SUBST(INSTALL_GDB_TK)
3280 # Build module lists & subconfigure args.
3281 AC_SUBST(build_configargs)
3282 AC_SUBST(build_configdirs)
3284 # Host module lists & subconfigure args.
3285 AC_SUBST(host_configargs)
3286 AC_SUBST(configdirs)
3287 AC_SUBST(target_configdirs)
3289 # Target module lists & subconfigure args.
3290 AC_SUBST(target_configargs)
3293 # Build tools.
3294 AC_SUBST(AR_FOR_BUILD)
3295 AC_SUBST(AS_FOR_BUILD)
3296 AC_SUBST(CC_FOR_BUILD)
3297 AC_SUBST(CFLAGS_FOR_BUILD)
3298 AC_SUBST(CXXFLAGS_FOR_BUILD)
3299 AC_SUBST(CXX_FOR_BUILD)
3300 AC_SUBST(DLLTOOL_FOR_BUILD)
3301 AC_SUBST(GFORTRAN_FOR_BUILD)
3302 AC_SUBST(GOC_FOR_BUILD)
3303 AC_SUBST(GDC_FOR_BUILD)
3304 AC_SUBST(LDFLAGS_FOR_BUILD)
3305 AC_SUBST(LD_FOR_BUILD)
3306 AC_SUBST(NM_FOR_BUILD)
3307 AC_SUBST(RANLIB_FOR_BUILD)
3308 AC_SUBST(WINDMC_FOR_BUILD)
3309 AC_SUBST(WINDRES_FOR_BUILD)
3311 # Generate default definitions for YACC, M4, LEX and other programs that run
3312 # on the build machine. These are used if the Makefile can't locate these
3313 # programs in objdir.
3314 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3316 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3317 case " $build_configdirs " in
3318 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3319 esac
3321 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3322 case " $build_configdirs " in
3323 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3324 esac
3326 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3327 case " $build_configdirs " in
3328 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3329 esac
3331 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3332 case " $build_configdirs " in
3333 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3334 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3335 esac
3337 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3338 case " $build_configdirs " in
3339 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3340 esac
3342 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3343 case " $build_configdirs " in
3344 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3345 *)
3346 changequote(,)
3347 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3348 # higher, else we use the "missing" dummy.
3349 if ${MAKEINFO} --version \
3350 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3351 :
3352 else
3353 MAKEINFO="$MISSING makeinfo"
3354 fi
3355 ;;
3356 changequote([,])
3357 esac
3359 # FIXME: expect and dejagnu may become build tools?
3361 AC_CHECK_PROGS(EXPECT, expect, expect)
3362 case " $configdirs " in
3363 *" expect "*)
3364 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3365 ;;
3366 esac
3368 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3369 case " $configdirs " in
3370 *" dejagnu "*)
3371 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3372 ;;
3373 esac
3376 # Host tools.
3377 NCN_STRICT_CHECK_TOOLS(AR, ar)
3378 NCN_STRICT_CHECK_TOOLS(AS, as)
3379 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3380 NCN_STRICT_CHECK_TOOLS(LD, ld)
3381 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3382 NCN_STRICT_CHECK_TOOLS(NM, nm)
3383 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3384 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3385 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3386 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3387 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3388 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3389 NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
3390 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3391 AC_SUBST(CC)
3392 AC_SUBST(CXX)
3393 AC_SUBST(CFLAGS)
3394 AC_SUBST(CXXFLAGS)
3396 # Target tools.
3397 AC_ARG_WITH([build-time-tools],
3398 [AS_HELP_STRING([--with-build-time-tools=PATH],
3399 [use given path to find target tools during the build])],
3400 [case x"$withval" in
3401 x/*) ;;
3402 *)
3403 with_build_time_tools=
3404 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3405 ;;
3406 esac],
3407 [with_build_time_tools=])
3409 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3410 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3411 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3412 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3413 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3414 NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
3416 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3417 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3418 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3419 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3420 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3421 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3422 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3423 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3424 ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
3425 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3426 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3427 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3428 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3429 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3431 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3433 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3434 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3435 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3436 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3437 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3438 [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],
3439 c++)
3440 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3441 [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],
3442 c++)
3443 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3444 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3445 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3446 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3447 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3448 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3449 GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3450 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
3451 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3452 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3453 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3454 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3455 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3456 GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
3457 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3458 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3459 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3460 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3461 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3463 AC_SUBST(FLAGS_FOR_TARGET)
3464 AC_SUBST(RAW_CXX_FOR_TARGET)
3466 # Certain tools may need extra flags.
3467 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3468 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3469 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3471 # When building target libraries, except in a Canadian cross, we use
3472 # the same toolchain as the compiler we just built.
3473 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3474 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3475 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3476 if test $host = $build; then
3477 case " $configdirs " in
3478 *" gcc "*)
3479 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3480 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3481 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3482 ;;
3483 esac
3484 fi
3486 AC_SUBST(COMPILER_AS_FOR_TARGET)
3487 AC_SUBST(COMPILER_LD_FOR_TARGET)
3488 AC_SUBST(COMPILER_NM_FOR_TARGET)
3490 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3491 AC_ARG_ENABLE(maintainer-mode,
3492 [AS_HELP_STRING([--enable-maintainer-mode],
3493 [enable make rules and dependencies not useful
3494 (and sometimes confusing) to the casual installer])],
3495 USE_MAINTAINER_MODE=$enableval,
3496 USE_MAINTAINER_MODE=no)
3497 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3498 AC_SUBST(MAINTAINER_MODE_TRUE)
3499 AC_SUBST(MAINTAINER_MODE_FALSE)
3500 if test "$USE_MAINTAINER_MODE" = yes; then
3501 MAINTAINER_MODE_TRUE=
3502 MAINTAINER_MODE_FALSE='#'
3503 else
3504 MAINTAINER_MODE_TRUE='#'
3505 MAINTAINER_MODE_FALSE=
3506 fi
3507 MAINT=$MAINTAINER_MODE_TRUE
3508 AC_SUBST(MAINT)dnl
3510 # ---------------------
3511 # GCC bootstrap support
3512 # ---------------------
3514 # Stage specific cflags for build.
3515 stage1_cflags="-g"
3516 case $build in
3517 vax-*-*)
3518 case ${GCC} in
3519 yes) stage1_cflags="-g -Wa,-J" ;;
3520 *) stage1_cflags="-g -J" ;;
3521 esac ;;
3522 esac
3524 AC_SUBST(stage1_cflags)
3526 # Enable --enable-checking in stage1 of the compiler.
3527 AC_ARG_ENABLE(stage1-checking,
3528 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3529 [choose additional checking for stage1 of the compiler])],
3530 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3531 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3532 # For --disable-checking or implicit --enable-checking=release, avoid
3533 # setting --enable-checking=gc in the default stage1 checking for LTO
3534 # bootstraps. See PR62077.
3535 case $BUILD_CONFIG in
3536 *lto*)
3537 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3538 *)
3539 stage1_checking=--enable-checking=yes,types;;
3540 esac
3541 if test "x$enable_checking" = x && \
3542 test -d ${srcdir}/gcc && \
3543 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3544 stage1_checking=--enable-checking=yes,types,extra
3545 fi
3546 else
3547 stage1_checking=--enable-checking=$enable_checking,types
3548 fi])
3549 AC_SUBST(stage1_checking)
3551 # Enable -Werror in bootstrap stage2 and later.
3552 AC_ARG_ENABLE(werror,
3553 [AS_HELP_STRING([--enable-werror],
3554 [enable -Werror in bootstrap stage2 and later])],
3555 [
3556 case ${enable_werror} in
3557 yes) stage2_werror_flag="--enable-werror-always" ;;
3558 *) stage2_werror_flag="" ;;
3559 esac
3560 ],
3561 [
3562 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3563 case $BUILD_CONFIG in
3564 bootstrap-debug)
3565 stage2_werror_flag="--enable-werror-always" ;;
3566 "")
3567 stage2_werror_flag="--enable-werror-always" ;;
3568 esac
3569 fi
3570 ])
3572 AC_SUBST(stage2_werror_flag)
3574 # Specify what files to not compare during bootstrap.
3576 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3577 case "$target" in
3578 hppa*64*-*-hpux*) ;;
3579 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;;
3580 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3581 esac
3582 AC_SUBST(compare_exclusions)
3584 AC_CONFIG_FILES([Makefile],
3585 [sed "$extrasub_build" Makefile |
3586 sed "$extrasub_host" |
3587 sed "$extrasub_target" > mf$$
3588 mv -f mf$$ Makefile],
3589 [extrasub_build="$extrasub_build"
3590 extrasub_host="$extrasub_host"
3591 extrasub_target="$extrasub_target"])
3592 AC_OUTPUT