| blob | 12f85cc25fadbee820219d59513da160a8f0cd09 |
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(config/ax_cxx_compile_stdcxx.m4)
27 m4_include([libtool.m4])
28 m4_include([ltoptions.m4])
29 m4_include([ltsugar.m4])
30 m4_include([ltversion.m4])
31 m4_include([lt~obsolete.m4])
32 m4_include([config/isl.m4])
34 AC_INIT(move-if-change)
35 AC_DISABLE_OPTION_CHECKING
37 progname=$0
38 # if PWD already has a value, it is probably wrong.
39 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
41 # Export original configure arguments for use by sub-configures.
42 # Quote arguments with shell meta charatcers.
43 TOPLEVEL_CONFIGURE_ARGUMENTS=
44 set -- "$progname" "$@"
45 for ac_arg
46 do
47 case "$ac_arg" in
48 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
49 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
50 # if the argument is of the form -foo=baz, quote the baz part only
51 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
52 *) ;;
53 esac
54 # Add the quoted argument to the list.
55 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
56 done
57 if test "$silent" = yes; then
58 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
59 fi
60 # Remove the initial space we just introduced and, as these will be
61 # expanded by make, quote '$'.
62 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
63 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
65 # Find the build, host, and target systems.
66 ACX_NONCANONICAL_BUILD
67 ACX_NONCANONICAL_HOST
68 ACX_NONCANONICAL_TARGET
70 dnl Autoconf 2.5x and later will set a default program prefix if
71 dnl --target was used, even if it was the same as --host. Disable
72 dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
73 dnl to take effect.
74 test "$host_noncanonical" = "$target_noncanonical" &&
75 test "$program_prefix$program_suffix$program_transform_name" = \
76 NONENONEs,x,x, &&
77 program_transform_name=s,y,y,
79 AC_CANONICAL_SYSTEM
80 AC_ARG_PROGRAM
82 m4_pattern_allow([^AS_FOR_TARGET$])dnl
83 m4_pattern_allow([^AS_FOR_BUILD$])dnl
85 # Get 'install' or 'install-sh' and its variants.
86 AC_PROG_INSTALL
87 ACX_PROG_LN
88 AC_PROG_LN_S
89 AC_PROG_SED
90 AC_PROG_AWK
92 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
94 # We pass INSTALL explicitly to sub-makes. Make sure that it is not
95 # a relative path.
96 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
97 INSTALL="${srcpwd}/install-sh -c"
98 fi
100 # Set srcdir to "." if that's what it is.
101 # This is important for multilib support.
102 pwd=`${PWDCMD-pwd}`
103 if test "${pwd}" = "${srcpwd}" ; then
104 srcdir=.
105 fi
107 topsrcdir=$srcpwd
109 extra_host_args=
111 ### To add a new directory to the tree, first choose whether it is a target
112 ### or a host dependent tool. Then put it into the appropriate list
113 ### (library or tools, host or target), doing a dependency sort.
115 # Subdirs will be configured in the order listed in build_configdirs,
116 # configdirs, or target_configdirs; see the serialization section below.
118 # Dependency sorting is only needed when *configuration* must be done in
119 # a particular order. In all cases a dependency should be specified in
120 # the Makefile, whether or not it's implicitly specified here.
122 # Double entries in build_configdirs, configdirs, or target_configdirs may
123 # cause circular dependencies and break everything horribly.
125 # these library is used by various programs built for the build
126 # environment
127 #
128 build_libs="build-libiberty build-libcpp"
130 # these tools are built for the build environment
131 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
133 # these libraries are used by various programs built for the host environment
134 #f
135 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv libctf"
137 # these tools are built for the host environment
138 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
139 # know that we are building the simulator.
140 # binutils, gas and ld appear in that order because it makes sense to run
141 # "make check" in that particular order.
142 # If --enable-gold is used, "gold" may replace "ld".
143 host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools"
145 # these libraries are built for the target environment, and are built after
146 # the host libraries and the host tools (which may be a cross compiler)
147 # Note that libiberty is not a target library.
148 target_libraries="target-libgcc \
149 target-libbacktrace \
150 target-libgloss \
151 target-newlib \
152 target-libgomp \
153 target-liboffloadmic \
154 target-libhsail-rt \
155 target-libatomic \
156 target-libitm \
157 target-libstdc++-v3 \
158 target-libsanitizer \
159 target-libvtv \
160 target-libssp \
161 target-libquadmath \
162 target-libgfortran \
163 target-libffi \
164 target-libobjc \
165 target-libada \
166 target-libgo \
167 target-libphobos \
168 target-zlib"
170 # these tools are built using the target libraries, and are intended to
171 # run only in the target environment
172 #
173 # note: any program that *uses* libraries that are in the "target_libraries"
174 # list belongs in this list.
175 #
176 target_tools="target-rda"
178 ################################################################################
180 ## All tools belong in one of the four categories, and are assigned above
181 ## We assign ${configdirs} this way to remove all embedded newlines. This
182 ## is important because configure will choke if they ever get through.
183 ## ${configdirs} is directories we build using the host tools.
184 ## ${target_configdirs} is directories we build using the target tools.
185 configdirs=`echo ${host_libs} ${host_tools}`
186 target_configdirs=`echo ${target_libraries} ${target_tools}`
187 build_configdirs=`echo ${build_libs} ${build_tools}`
189 m4_divert_text([PARSE_ARGS],
190 [case $srcdir in
191 *" "*)
192 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
193 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
194 m4_popdef([AS_MESSAGE_LOG_FD])dnl
195 ;;
196 esac
197 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
198 ])
200 ################################################################################
202 srcname="gnu development package"
204 # This gets set non-empty for some net releases of packages.
205 appdirs=""
207 # Define is_cross_compiler to save on calls to 'test'.
208 is_cross_compiler=
209 if test x"${host}" = x"${target}" ; then
210 is_cross_compiler=no
211 else
212 is_cross_compiler=yes
213 fi
215 # Find the build and target subdir names.
216 GCC_TOPLEV_SUBDIRS
217 # Be sure to cover against remnants of an in-tree build.
218 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
219 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
220 Use a pristine source tree when building in a separate tree])
221 fi
223 # Skipdirs are removed silently.
224 skipdirs=
225 # Noconfigdirs are removed loudly.
226 noconfigdirs=""
228 use_gnu_ld=
229 # Make sure we don't let GNU ld be added if we didn't want it.
230 if test x$with_gnu_ld = xno ; then
231 use_gnu_ld=no
232 noconfigdirs="$noconfigdirs ld gold"
233 fi
235 use_gnu_as=
236 # Make sure we don't let GNU as be added if we didn't want it.
237 if test x$with_gnu_as = xno ; then
238 use_gnu_as=no
239 noconfigdirs="$noconfigdirs gas"
240 fi
242 use_included_zlib=
243 AC_ARG_WITH(system-zlib,
244 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
245 # Make sure we don't let ZLIB be added if we didn't want it.
246 if test x$with_system_zlib = xyes ; then
247 use_included_zlib=no
248 noconfigdirs="$noconfigdirs zlib"
249 fi
251 # some tools are so dependent upon X11 that if we're not building with X,
252 # it's not even worth trying to configure, much less build, that tool.
254 case ${with_x} in
255 yes | "") ;; # the default value for this tree is that X11 is available
256 no)
257 skipdirs="${skipdirs} tk itcl libgui"
258 # We won't be able to build gdbtk without X.
259 enable_gdbtk=no
260 ;;
261 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
262 esac
264 # Some are only suitable for cross toolchains.
265 # Remove these if host=target.
266 cross_only="target-libgloss target-newlib target-opcodes"
268 case $is_cross_compiler in
269 no) skipdirs="${skipdirs} ${cross_only}" ;;
270 esac
272 # If both --with-headers and --with-libs are specified, default to
273 # --without-newlib.
274 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
275 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
276 if test x"${with_newlib}" = x ; then
277 with_newlib=no
278 fi
279 fi
281 # Recognize --with-newlib/--without-newlib.
282 case ${with_newlib} in
283 no) skipdirs="${skipdirs} target-newlib" ;;
284 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
285 esac
287 AC_ARG_ENABLE(as-accelerator-for,
288 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
289 [build as offload target compiler.
290 Specify offload host triple by ARG])])
292 AC_ARG_ENABLE(offload-targets,
293 [AS_HELP_STRING([--enable-offload-targets=LIST],
294 [enable offloading to devices from comma-separated LIST of
295 TARGET[=DIR]. Use optional path to find offload target compiler
296 during the build])],
297 [
298 if test x"$enable_offload_targets" = x; then
299 AC_MSG_ERROR([no offload targets specified])
300 fi
301 ], [enable_offload_targets=])
303 # Handle --enable-gold, --enable-ld.
304 # --disable-gold [--enable-ld]
305 # Build only ld. Default option.
306 # --enable-gold [--enable-ld]
307 # Build both gold and ld. Install gold as "ld.gold", install ld
308 # as "ld.bfd" and "ld".
309 # --enable-gold=default [--enable-ld]
310 # Build both gold and ld. Install gold as "ld.gold" and "ld",
311 # install ld as "ld.bfd".
312 # --enable-gold[=default] --disable-ld
313 # Build only gold, which is then installed as both "ld.gold" and "ld".
314 # --enable-gold --enable-ld=default
315 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
316 # and ld.bfd).
317 # In other words, ld is default
318 # --enable-gold=default --enable-ld=default
319 # Error.
321 default_ld=
322 AC_ARG_ENABLE(gold,
323 [AS_HELP_STRING([[--enable-gold[=ARG]]],
324 [build gold @<:@ARG={default,yes,no}@:>@])],
325 ENABLE_GOLD=$enableval,
326 ENABLE_GOLD=no)
327 case "${ENABLE_GOLD}" in
328 yes|default)
329 # Check for ELF target.
330 is_elf=no
331 case "${target}" in
332 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
333 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
334 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
335 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
336 case "${target}" in
337 *-*-linux*aout* | *-*-linux*oldld*)
338 ;;
339 *)
340 is_elf=yes
341 ;;
342 esac
343 esac
345 if test "$is_elf" = "yes"; then
346 # Check for target supported by gold.
347 case "${target}" in
348 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
349 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
350 configdirs="$configdirs gold"
351 if test x${ENABLE_GOLD} = xdefault; then
352 default_ld=gold
353 fi
354 ENABLE_GOLD=yes
355 ;;
356 esac
357 fi
358 ;;
359 no)
360 ;;
361 *)
362 AC_MSG_ERROR([invalid --enable-gold argument])
363 ;;
364 esac
366 AC_ARG_ENABLE(ld,
367 [AS_HELP_STRING([[--enable-ld[=ARG]]],
368 [build ld @<:@ARG={default,yes,no}@:>@])],
369 ENABLE_LD=$enableval,
370 ENABLE_LD=yes)
372 case "${ENABLE_LD}" in
373 default)
374 if test x${default_ld} != x; then
375 AC_MSG_ERROR([either gold or ld can be the default ld])
376 fi
377 ;;
378 yes)
379 ;;
380 no)
381 if test x${ENABLE_GOLD} != xyes; then
382 AC_MSG_WARN([neither ld nor gold are enabled])
383 fi
384 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
385 ;;
386 *)
387 AC_MSG_ERROR([invalid --enable-ld argument])
388 ;;
389 esac
391 # PR gas/19109
392 # Decide the default method for compressing debug sections.
393 # Provide a configure time option to override our default.
394 AC_ARG_ENABLE(compressed_debug_sections,
395 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
396 [Enable compressed debug sections for gas, gold or ld by
397 default])],
398 [
399 if test x"$enable_compressed_debug_sections" = xyes; then
400 AC_MSG_ERROR([no program with compressed debug sections specified])
401 fi
402 ], [enable_compressed_debug_sections=])
404 # Configure extra directories which are host specific
406 case "${host}" in
407 *-cygwin*)
408 configdirs="$configdirs libtermcap" ;;
409 esac
411 # A target can indicate whether a language isn't supported for some reason.
412 # Only spaces may be used in this macro; not newlines or tabs.
413 unsupported_languages=
415 # Remove more programs from consideration, based on the host or
416 # target this usually means that a port of the program doesn't
417 # exist yet.
419 case "${host}" in
420 i[[3456789]]86-*-msdosdjgpp*)
421 noconfigdirs="$noconfigdirs tcl tk itcl"
422 ;;
423 esac
426 AC_ARG_ENABLE(libquadmath,
427 AS_HELP_STRING([--disable-libquadmath],
428 [do not build libquadmath directory]),
429 ENABLE_LIBQUADMATH=$enableval,
430 ENABLE_LIBQUADMATH=yes)
431 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
432 noconfigdirs="$noconfigdirs target-libquadmath"
433 fi
436 AC_ARG_ENABLE(libquadmath-support,
437 AS_HELP_STRING([--disable-libquadmath-support],
438 [disable libquadmath support for Fortran]),
439 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
440 ENABLE_LIBQUADMATH_SUPPORT=yes)
441 enable_libquadmath_support=
442 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
443 enable_libquadmath_support=no
444 fi
447 AC_ARG_ENABLE(libada,
448 [AS_HELP_STRING([--enable-libada], [build libada directory])],
449 ENABLE_LIBADA=$enableval,
450 ENABLE_LIBADA=yes)
451 if test "${ENABLE_LIBADA}" != "yes" ; then
452 noconfigdirs="$noconfigdirs gnattools"
453 fi
455 AC_ARG_ENABLE(libssp,
456 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
457 ENABLE_LIBSSP=$enableval,
458 ENABLE_LIBSSP=yes)
460 AC_ARG_ENABLE(libstdcxx,
461 AS_HELP_STRING([--disable-libstdcxx],
462 [do not build libstdc++-v3 directory]),
463 ENABLE_LIBSTDCXX=$enableval,
464 ENABLE_LIBSTDCXX=default)
465 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
466 noconfigdirs="$noconfigdirs target-libstdc++-v3"
467 fi]
469 # If this is accelerator compiler and its target is intelmic we enable
470 # target liboffloadmic by default. If this is compiler with offloading
471 # for intelmic we enable host liboffloadmic by default. Otherwise
472 # liboffloadmic is disabled by default.
473 AC_ARG_ENABLE([liboffloadmic],
474 AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
475 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
476 [case "$enableval" in
477 no | host | target)
478 enable_liboffloadmic=$enableval ;;
479 *)
480 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
481 esac],
482 [if test x"$enable_as_accelerator_for" != x; then
483 case "${target}" in
484 *-intelmic-* | *-intelmicemul-*)
485 enable_liboffloadmic=target
486 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
487 ;;
488 *)
489 enable_liboffloadmic=no
490 ;;
491 esac
492 else
493 case "${enable_offload_targets}" in
494 *-intelmic-* | *-intelmicemul-*)
495 enable_liboffloadmic=host
496 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
497 ;;
498 *)
499 enable_liboffloadmic=no
500 ;;
501 esac
502 fi])
503 AC_SUBST(extra_liboffloadmic_configure_flags)
505 # Enable libgomp by default on hosted POSIX systems, and a few others.
506 if test x$enable_libgomp = x ; then
507 case "${target}" in
508 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
509 ;;
510 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
511 ;;
512 *-*-solaris2* | *-*-hpux11*)
513 ;;
514 *-*-darwin* | *-*-aix*)
515 ;;
516 nvptx*-*-* | amdgcn*-*-*)
517 ;;
518 *)
519 noconfigdirs="$noconfigdirs target-libgomp"
520 ;;
521 esac
522 fi
524 # Disable libatomic on unsupported systems.
525 if test -d ${srcdir}/libatomic; then
526 if test x$enable_libatomic = x; then
527 AC_MSG_CHECKING([for libatomic support])
528 if (srcdir=${srcdir}/libatomic; \
529 . ${srcdir}/configure.tgt; \
530 test -n "$UNSUPPORTED")
531 then
532 AC_MSG_RESULT([no])
533 noconfigdirs="$noconfigdirs target-libatomic"
534 else
535 AC_MSG_RESULT([yes])
536 fi
537 fi
538 fi
540 # Disable liboffloadmic on unsupported systems.
541 if test -d ${srcdir}/liboffloadmic; then
542 if test x$enable_liboffloadmic != xno; then
543 AC_MSG_CHECKING([for liboffloadmic support])
544 if (srcdir=${srcdir}/liboffloadmic; \
545 . ${srcdir}/configure.tgt; \
546 test -n "$UNSUPPORTED")
547 then
548 AC_MSG_RESULT([no])
549 noconfigdirs="$noconfigdirs target-liboffloadmic"
550 else
551 AC_MSG_RESULT([yes])
552 fi
553 fi
554 fi
556 # Disable libitm on unsupported systems.
557 if test -d ${srcdir}/libitm; then
558 if test x$enable_libitm = x; then
559 AC_MSG_CHECKING([for libitm support])
560 if (srcdir=${srcdir}/libitm; \
561 . ${srcdir}/configure.tgt; \
562 test -n "$UNSUPPORTED")
563 then
564 AC_MSG_RESULT([no])
565 noconfigdirs="$noconfigdirs target-libitm"
566 else
567 AC_MSG_RESULT([yes])
568 fi
569 fi
570 fi
572 # Disable libsanitizer on unsupported systems.
573 if test -d ${srcdir}/libsanitizer; then
574 if test x$enable_libsanitizer = x; then
575 AC_MSG_CHECKING([for libsanitizer support])
576 if (srcdir=${srcdir}/libsanitizer; \
577 . ${srcdir}/configure.tgt; \
578 test -n "$UNSUPPORTED")
579 then
580 AC_MSG_RESULT([no])
581 noconfigdirs="$noconfigdirs target-libsanitizer"
582 else
583 AC_MSG_RESULT([yes])
584 fi
585 fi
586 fi
588 # Disable libvtv on unsupported systems.
589 if test -d ${srcdir}/libvtv; then
590 if test x$enable_libvtv = x; then
591 AC_MSG_CHECKING([for libvtv support])
592 if (srcdir=${srcdir}/libvtv; \
593 . ${srcdir}/configure.tgt; \
594 test "$VTV_SUPPORTED" != "yes")
595 then
596 AC_MSG_RESULT([no])
597 noconfigdirs="$noconfigdirs target-libvtv"
598 else
599 AC_MSG_RESULT([yes])
600 fi
601 fi
602 fi
605 # Disable libhsail-rt on unsupported systems.
606 if test -d ${srcdir}/libhsail-rt; then
607 if test x$enable_libhsail_rt = x; then
608 AC_MSG_CHECKING([for libhsail-rt support])
609 if (srcdir=${srcdir}/libhsail-rt; \
610 . ${srcdir}/configure.tgt; \
611 test -n "$UNSUPPORTED")
612 then
613 AC_MSG_RESULT([no])
614 unsupported_languages="$unsupported_languages brig"
615 # This implicitly disables also target-libhsail-rt as it won't
616 # get added to the build without BRIG FE.
617 else
618 AC_MSG_RESULT([yes])
619 fi
620 fi
621 fi
624 # Disable libquadmath for some systems.
625 case "${target}" in
626 avr-*-*)
627 noconfigdirs="$noconfigdirs target-libquadmath"
628 ;;
629 # libquadmath is unused on AIX and libquadmath build process use of
630 # LD_LIBRARY_PATH can break AIX bootstrap.
631 powerpc-*-aix* | rs6000-*-aix*)
632 noconfigdirs="$noconfigdirs target-libquadmath"
633 ;;
634 esac
636 # Disable libssp for some systems.
637 case "${target}" in
638 avr-*-*)
639 # No hosted I/O support.
640 noconfigdirs="$noconfigdirs target-libssp"
641 ;;
642 bpf-*-*)
643 noconfigdirs="$noconfigdirs target-libssp"
644 ;;
645 powerpc-*-aix* | rs6000-*-aix*)
646 noconfigdirs="$noconfigdirs target-libssp"
647 ;;
648 pru-*-*)
649 # No hosted I/O support.
650 noconfigdirs="$noconfigdirs target-libssp"
651 ;;
652 rl78-*-*)
653 # libssp uses a misaligned load to trigger a fault, but the RL78
654 # doesn't fault for those - instead, it gives a build-time error
655 # for explicit misaligned loads.
656 noconfigdirs="$noconfigdirs target-libssp"
657 ;;
658 visium-*-*)
659 # No hosted I/O support.
660 noconfigdirs="$noconfigdirs target-libssp"
661 ;;
662 esac
664 # Disable libstdc++-v3 for some systems.
665 # Allow user to override this if they pass --enable-libstdc++-v3
666 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
667 case "${target}" in
668 *-*-vxworks*)
669 # VxWorks uses the Dinkumware C++ library.
670 noconfigdirs="$noconfigdirs target-libstdc++-v3"
671 ;;
672 amdgcn*-*-*)
673 # Not ported/fails to build when using newlib.
674 noconfigdirs="$noconfigdirs target-libstdc++-v3"
675 ;;
676 arm*-wince-pe*)
677 # the C++ libraries don't build on top of CE's C libraries
678 noconfigdirs="$noconfigdirs target-libstdc++-v3"
679 ;;
680 avr-*-*)
681 noconfigdirs="$noconfigdirs target-libstdc++-v3"
682 ;;
683 bpf-*-*)
684 noconfigdirs="$noconfigdirs target-libstdc++-v3"
685 ;;
686 ft32-*-*)
687 noconfigdirs="$noconfigdirs target-libstdc++-v3"
688 ;;
689 esac
690 fi
692 # Disable C++ on systems where it is known to not work.
693 # For testing, you can override this with --enable-languages=c++.
694 case ,${enable_languages}, in
695 *,c++,*)
696 ;;
697 *)
698 case "${target}" in
699 bpf-*-*)
700 unsupported_languages="$unsupported_languages c++"
701 ;;
702 esac
703 ;;
704 esac
706 # Disable Objc on systems where it is known to not work.
707 # For testing, you can override this with --enable-languages=objc.
708 case ,${enable_languages}, in
709 *,objc,*)
710 ;;
711 *)
712 case "${target}" in
713 bpf-*-*)
714 unsupported_languages="$unsupported_languages objc"
715 ;;
716 esac
717 ;;
718 esac
720 # Disable D on systems where it is known to not work.
721 # For testing, you can override this with --enable-languages=d.
722 case ,${enable_languages}, in
723 *,d,*)
724 ;;
725 *)
726 case "${target}" in
727 bpf-*-*)
728 unsupported_languages="$unsupported_languages d"
729 ;;
730 esac
731 ;;
732 esac
734 # Disable libphobos on unsupported systems.
735 # For testing, you can override this with --enable-libphobos.
736 if test -d ${srcdir}/libphobos; then
737 if test x$enable_libphobos = x; then
738 AC_MSG_CHECKING([for libphobos support])
739 if (srcdir=${srcdir}/libphobos; \
740 . ${srcdir}/configure.tgt; \
741 test "$LIBPHOBOS_SUPPORTED" != "yes")
742 then
743 AC_MSG_RESULT([no])
744 noconfigdirs="$noconfigdirs target-libphobos"
745 else
746 AC_MSG_RESULT([yes])
747 fi
748 fi
749 fi
751 # Disable Fortran for some systems.
752 case "${target}" in
753 mmix-*-*)
754 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
755 unsupported_languages="$unsupported_languages fortran"
756 ;;
757 bpf-*-*)
758 unsupported_languages="$unsupported_languages fortran"
759 ;;
760 esac
762 # Disable libffi for some systems.
763 case "${target}" in
764 powerpc-*-darwin*)
765 ;;
766 i[[3456789]]86-*-darwin*)
767 ;;
768 x86_64-*-darwin[[912]]*)
769 ;;
770 *-*-darwin*)
771 noconfigdirs="$noconfigdirs target-libffi"
772 ;;
773 *-*-netware*)
774 noconfigdirs="$noconfigdirs target-libffi"
775 ;;
776 *-*-phoenix*)
777 noconfigdirs="$noconfigdirs target-libffi"
778 ;;
779 *-*-rtems*)
780 noconfigdirs="$noconfigdirs target-libffi"
781 ;;
782 *-*-tpf*)
783 noconfigdirs="$noconfigdirs target-libffi"
784 ;;
785 *-*-uclinux*)
786 noconfigdirs="$noconfigdirs target-libffi"
787 ;;
788 *-*-vxworks*)
789 noconfigdirs="$noconfigdirs target-libffi"
790 ;;
791 aarch64*-*-freebsd*)
792 noconfigdirs="$noconfigdirs target-libffi"
793 ;;
794 alpha*-*-*vms*)
795 noconfigdirs="$noconfigdirs target-libffi"
796 ;;
797 arm*-*-freebsd*)
798 noconfigdirs="$noconfigdirs target-libffi"
799 ;;
800 arm-wince-pe)
801 noconfigdirs="$noconfigdirs target-libffi"
802 ;;
803 arm*-*-symbianelf*)
804 noconfigdirs="$noconfigdirs target-libffi"
805 ;;
806 bpf-*-*)
807 noconfigdirs="$noconfigdirs target-libffi"
808 ;;
809 cris-*-* | crisv32-*-*)
810 case "${target}" in
811 *-*-linux*)
812 ;;
813 *) # See PR46792 regarding target-libffi.
814 noconfigdirs="$noconfigdirs target-libffi";;
815 esac
816 ;;
817 hppa*64*-*-hpux*)
818 noconfigdirs="$noconfigdirs target-libffi"
819 ;;
820 hppa*-hp-hpux11*)
821 ;;
822 hppa*-*-hpux*)
823 noconfigdirs="$noconfigdirs target-libffi"
824 ;;
825 ia64*-*-*vms*)
826 noconfigdirs="$noconfigdirs target-libffi"
827 ;;
828 i[[3456789]]86-w64-mingw*)
829 noconfigdirs="$noconfigdirs target-libffi"
830 ;;
831 i[[3456789]]86-*-mingw*)
832 noconfigdirs="$noconfigdirs target-libffi"
833 ;;
834 x86_64-*-mingw*)
835 noconfigdirs="$noconfigdirs target-libffi"
836 ;;
837 mmix-*-*)
838 noconfigdirs="$noconfigdirs target-libffi"
839 ;;
840 powerpc-*-aix*)
841 ;;
842 rs6000-*-aix*)
843 ;;
844 ft32-*-*)
845 noconfigdirs="$noconfigdirs target-libffi"
846 ;;
847 *-*-lynxos*)
848 noconfigdirs="$noconfigdirs target-libffi"
849 ;;
850 esac
852 # Disable the go frontend on systems where it is known to not work. Please keep
853 # this in sync with contrib/config-list.mk.
854 case "${target}" in
855 *-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
856 unsupported_languages="$unsupported_languages go"
857 ;;
858 esac
860 # Only allow gdbserver on some systems.
861 if test -d ${srcdir}/gdbserver; then
862 if test x$enable_gdbserver = x; then
863 AC_MSG_CHECKING([for gdbserver support])
864 if (srcdir=${srcdir}/gdbserver; \
865 . ${srcdir}/configure.srv; \
866 test -n "$UNSUPPORTED")
867 then
868 AC_MSG_RESULT([no])
869 noconfigdirs="$noconfigdirs gdbserver"
870 else
871 AC_MSG_RESULT([yes])
872 fi
873 fi
874 fi
876 # Disable libgo for some systems where it is known to not work.
877 # For testing, you can easily override this with --enable-libgo.
878 if test x$enable_libgo = x; then
879 case "${target}" in
880 *-*-darwin*)
881 # PR 46986
882 noconfigdirs="$noconfigdirs target-libgo"
883 ;;
884 *-*-cygwin* | *-*-mingw*)
885 noconfigdirs="$noconfigdirs target-libgo"
886 ;;
887 bpf-*-*)
888 noconfigdirs="$noconfigdirs target-libgo"
889 ;;
890 esac
891 fi
893 # Default libgloss CPU subdirectory.
894 libgloss_dir="$target_cpu"
896 case "${target}" in
897 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
898 libgloss_dir=wince
899 ;;
900 aarch64*-*-* )
901 libgloss_dir=aarch64
902 ;;
903 arm*-*-*)
904 libgloss_dir=arm
905 ;;
906 cris-*-* | crisv32-*-*)
907 libgloss_dir=cris
908 ;;
909 hppa*-*-*)
910 libgloss_dir=pa
911 ;;
912 i[[3456789]]86-*-*)
913 libgloss_dir=i386
914 ;;
915 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
916 libgloss_dir=m68hc11
917 ;;
918 m68*-*-* | fido-*-*)
919 libgloss_dir=m68k
920 ;;
921 mips*-*-*)
922 libgloss_dir=mips
923 ;;
924 powerpc*-*-*)
925 libgloss_dir=rs6000
926 ;;
927 pru-*-*)
928 libgloss_dir=pru
929 ;;
930 sparc*-*-*)
931 libgloss_dir=sparc
932 ;;
933 esac
935 # Disable newlib and libgloss for various target OSes.
936 case "${target}" in
937 alpha*-dec-osf*)
938 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
939 ;;
940 i[[3456789]]86-*-linux*)
941 # This section makes it possible to build newlib natively on linux.
942 # If we are using a cross compiler then don't configure newlib.
943 if test x${is_cross_compiler} != xno ; then
944 noconfigdirs="$noconfigdirs target-newlib"
945 fi
946 noconfigdirs="$noconfigdirs target-libgloss"
947 # If we are not using a cross compiler, do configure newlib.
948 # Note however, that newlib will only be configured in this situation
949 # if the --with-newlib option has been given, because otherwise
950 # 'target-newlib' will appear in skipdirs.
951 ;;
952 i[[3456789]]86-*-rdos*)
953 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
954 ;;
955 sh*-*-pe|mips*-*-pe|arm-wince-pe)
956 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
957 ;;
958 sparc-*-sunos4*)
959 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
960 ;;
961 bpf-*-*)
962 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
963 ;;
964 *-*-aix*)
965 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
966 ;;
967 *-*-beos*)
968 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
969 ;;
970 *-*-chorusos)
971 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
972 ;;
973 *-*-dragonfly*)
974 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
975 ;;
976 *-*-freebsd*)
977 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
978 ;;
979 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
980 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
981 ;;
982 *-*-lynxos*)
983 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
984 ;;
985 *-*-mingw*)
986 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
987 ;;
988 *-*-netbsd*)
989 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
990 ;;
991 *-*-netware*)
992 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
993 ;;
994 *-*-tpf*)
995 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
996 ;;
997 *-*-uclinux*)
998 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
999 ;;
1000 *-*-vxworks*)
1001 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1002 ;;
1003 esac
1005 case "${target}" in
1006 *-*-chorusos)
1007 ;;
1008 aarch64-*-darwin*)
1009 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1010 noconfigdirs="$noconfigdirs sim target-rda"
1011 ;;
1012 amdgcn*-*-*)
1013 ;;
1014 arm-*-darwin*)
1015 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1016 noconfigdirs="$noconfigdirs sim target-rda"
1017 ;;
1018 powerpc-*-darwin*)
1019 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1020 noconfigdirs="$noconfigdirs sim target-rda"
1021 ;;
1022 i[[3456789]]86-*-darwin*)
1023 noconfigdirs="$noconfigdirs ld gprof"
1024 noconfigdirs="$noconfigdirs sim target-rda"
1025 ;;
1026 x86_64-*-darwin[[912]]*)
1027 noconfigdirs="$noconfigdirs ld gas gprof"
1028 noconfigdirs="$noconfigdirs sim target-rda"
1029 ;;
1030 *-*-darwin*)
1031 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1032 noconfigdirs="$noconfigdirs sim target-rda"
1033 ;;
1034 *-*-dragonfly*)
1035 ;;
1036 *-*-freebsd*)
1037 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
1038 && ! test -d ${srcdir}/gmp \
1039 && test -f /usr/local/include/gmp.h; then
1040 with_gmp=/usr/local
1041 fi
1042 ;;
1043 *-*-kaos*)
1044 # Remove unsupported stuff on all kaOS configurations.
1045 noconfigdirs="$noconfigdirs target-libgloss"
1046 ;;
1047 *-*-netbsd*)
1048 ;;
1049 *-*-netware*)
1050 ;;
1051 *-*-phoenix*)
1052 noconfigdirs="$noconfigdirs target-libgloss"
1053 ;;
1054 *-*-rtems*)
1055 noconfigdirs="$noconfigdirs target-libgloss"
1056 ;;
1057 # The tpf target doesn't support gdb yet.
1058 *-*-tpf*)
1059 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
1060 ;;
1061 *-*-uclinux*)
1062 noconfigdirs="$noconfigdirs target-rda"
1063 ;;
1064 *-*-vxworks*)
1065 ;;
1066 alpha*-dec-osf*)
1067 # ld works, but does not support shared libraries.
1068 # gas doesn't generate exception information.
1069 noconfigdirs="$noconfigdirs gas ld"
1070 ;;
1071 alpha*-*-*vms*)
1072 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1073 ;;
1074 alpha*-*-*)
1075 # newlib is not 64 bit ready
1076 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1077 ;;
1078 bpf-*-*)
1079 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1080 ;;
1081 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1082 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1083 ;;
1084 arc*-*-*)
1085 noconfigdirs="$noconfigdirs sim"
1086 ;;
1087 arm-*-pe*)
1088 noconfigdirs="$noconfigdirs target-libgloss"
1089 ;;
1090 arm-*-riscix*)
1091 noconfigdirs="$noconfigdirs ld target-libgloss"
1092 ;;
1093 avr-*-*)
1094 if test x${with_avrlibc} != xno; then
1095 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1096 fi
1097 ;;
1098 c4x-*-* | tic4x-*-*)
1099 noconfigdirs="$noconfigdirs target-libgloss"
1100 ;;
1101 tic54x-*-*)
1102 noconfigdirs="$noconfigdirs target-libgloss gdb"
1103 ;;
1104 d10v-*-*)
1105 noconfigdirs="$noconfigdirs target-libgloss"
1106 ;;
1107 d30v-*-*)
1108 noconfigdirs="$noconfigdirs gdb"
1109 ;;
1110 fr30-*-elf*)
1111 noconfigdirs="$noconfigdirs gdb"
1112 ;;
1113 ft32-*-*)
1114 noconfigdirs="$noconfigdirs target-rda gprof"
1115 ;;
1116 moxie-*-*)
1117 noconfigdirs="$noconfigdirs"
1118 ;;
1119 h8300*-*-*)
1120 noconfigdirs="$noconfigdirs target-libgloss"
1121 ;;
1122 h8500-*-*)
1123 noconfigdirs="$noconfigdirs target-libgloss"
1124 ;;
1125 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1126 ;;
1127 hppa*64*-*-hpux*)
1128 noconfigdirs="$noconfigdirs gdb"
1129 ;;
1130 hppa*-*-hpux11*)
1131 noconfigdirs="$noconfigdirs gdb ld"
1132 ;;
1133 hppa*64*-*-linux*)
1134 ;;
1135 hppa*-*-linux*)
1136 ;;
1137 hppa*-*-*elf* | \
1138 hppa*-*-lites* | \
1139 hppa*-*-openbsd* | \
1140 hppa*64*-*-*)
1141 ;;
1142 hppa*-*-pro*)
1143 ;;
1144 hppa*-*-*)
1145 noconfigdirs="$noconfigdirs ld"
1146 ;;
1147 i960-*-*)
1148 noconfigdirs="$noconfigdirs gdb"
1149 ;;
1150 ia64*-*-elf*)
1151 # No gdb support yet.
1152 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1153 ;;
1154 ia64*-**-hpux*)
1155 # No ld support yet.
1156 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1157 ;;
1158 ia64*-*-*vms*)
1159 # No ld support yet.
1160 noconfigdirs="$noconfigdirs libgui itcl ld"
1161 ;;
1162 i[[3456789]]86-w64-mingw*)
1163 ;;
1164 i[[3456789]]86-*-mingw*)
1165 target_configdirs="$target_configdirs target-winsup"
1166 ;;
1167 *-*-cygwin*)
1168 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1169 noconfigdirs="$noconfigdirs target-libgloss"
1170 # always build newlib if winsup directory is present.
1171 if test -d "$srcdir/winsup/cygwin"; then
1172 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1173 elif test -d "$srcdir/newlib"; then
1174 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1175 fi
1176 ;;
1177 i[[3456789]]86-*-pe)
1178 noconfigdirs="$noconfigdirs target-libgloss"
1179 ;;
1180 i[[3456789]]86-*-sco3.2v5*)
1181 # The linker does not yet know about weak symbols in COFF,
1182 # and is not configured to handle mixed ELF and COFF.
1183 noconfigdirs="$noconfigdirs ld target-libgloss"
1184 ;;
1185 i[[3456789]]86-*-sco*)
1186 noconfigdirs="$noconfigdirs gprof target-libgloss"
1187 ;;
1188 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1189 noconfigdirs="$noconfigdirs target-libgloss"
1190 ;;
1191 i[[3456789]]86-*-sysv4*)
1192 noconfigdirs="$noconfigdirs target-libgloss"
1193 ;;
1194 i[[3456789]]86-*-beos*)
1195 noconfigdirs="$noconfigdirs gdb"
1196 ;;
1197 i[[3456789]]86-*-rdos*)
1198 noconfigdirs="$noconfigdirs gdb"
1199 ;;
1200 mmix-*-*)
1201 noconfigdirs="$noconfigdirs gdb"
1202 ;;
1203 mt-*-*)
1204 noconfigdirs="$noconfigdirs sim"
1205 ;;
1206 nfp-*-*)
1207 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1208 noconfigdirs="$noconfigdirs $target_libraries"
1209 ;;
1210 pdp11-*-*)
1211 noconfigdirs="$noconfigdirs gdb gprof"
1212 ;;
1213 powerpc-*-aix*)
1214 # copied from rs6000-*-* entry
1215 noconfigdirs="$noconfigdirs gprof"
1216 ;;
1217 powerpc*-*-winnt* | powerpc*-*-pe*)
1218 target_configdirs="$target_configdirs target-winsup"
1219 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1220 # always build newlib.
1221 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1222 ;;
1223 # This is temporary until we can link against shared libraries
1224 powerpcle-*-solaris*)
1225 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1226 ;;
1227 powerpc-*-beos*)
1228 noconfigdirs="$noconfigdirs gdb"
1229 ;;
1230 rs6000-*-lynxos*)
1231 noconfigdirs="$noconfigdirs gprof"
1232 ;;
1233 rs6000-*-aix*)
1234 noconfigdirs="$noconfigdirs gprof"
1235 ;;
1236 rs6000-*-*)
1237 noconfigdirs="$noconfigdirs gprof"
1238 ;;
1239 m68k-apollo-*)
1240 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1241 ;;
1242 microblaze*)
1243 noconfigdirs="$noconfigdirs gprof"
1244 ;;
1245 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1246 if test x$with_newlib = xyes; then
1247 noconfigdirs="$noconfigdirs gprof"
1248 fi
1249 ;;
1250 mips*-*-irix5*)
1251 noconfigdirs="$noconfigdirs gprof target-libgloss"
1252 ;;
1253 mips*-*-irix6*)
1254 noconfigdirs="$noconfigdirs gprof target-libgloss"
1255 ;;
1256 mips*-*-bsd*)
1257 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1258 ;;
1259 mips*-*-linux*)
1260 ;;
1261 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1262 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1263 noconfigdirs="$noconfigdirs ld gas gprof"
1264 ;;
1265 mips*-*-*)
1266 noconfigdirs="$noconfigdirs gprof"
1267 ;;
1268 nvptx*-*-*)
1269 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1270 ;;
1271 sh-*-*)
1272 case "${target}" in
1273 sh*-*-elf)
1274 ;;
1275 *)
1276 noconfigdirs="$noconfigdirs target-libgloss" ;;
1277 esac
1278 ;;
1279 sparc-*-sunos4*)
1280 if test x${is_cross_compiler} = xno ; then
1281 use_gnu_ld=no
1282 fi
1283 ;;
1284 tic6x-*-*)
1285 noconfigdirs="$noconfigdirs sim"
1286 ;;
1287 tilepro*-*-* | tilegx*-*-*)
1288 noconfigdirs="$noconfigdirs sim"
1289 ;;
1290 v810-*-*)
1291 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1292 ;;
1293 vax-*-*)
1294 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1295 ;;
1296 wasm32-*-*)
1297 noconfigdirs="$noconfigdirs ld"
1298 ;;
1299 esac
1301 # If we aren't building newlib, then don't build libgloss, since libgloss
1302 # depends upon some newlib header files.
1303 case "${noconfigdirs}" in
1304 *target-libgloss*) ;;
1305 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1306 esac
1308 # Work in distributions that contain no compiler tools, like Autoconf.
1309 host_makefile_frag=/dev/null
1310 if test -d ${srcdir}/config ; then
1311 case "${host}" in
1312 i[[3456789]]86-*-msdosdjgpp*)
1313 host_makefile_frag="config/mh-djgpp"
1314 ;;
1315 *-cygwin*)
1316 ACX_CHECK_CYGWIN_CAT_WORKS
1317 host_makefile_frag="config/mh-cygwin"
1318 ;;
1319 *-mingw*)
1320 host_makefile_frag="config/mh-mingw"
1321 ;;
1322 alpha*-linux*)
1323 host_makefile_frag="config/mh-alpha-linux"
1324 ;;
1325 hppa*-hp-hpux10*)
1326 host_makefile_frag="config/mh-pa-hpux10"
1327 ;;
1328 hppa*-hp-hpux*)
1329 host_makefile_frag="config/mh-pa"
1330 ;;
1331 hppa*-*)
1332 host_makefile_frag="config/mh-pa"
1333 ;;
1334 *-*-darwin*)
1335 host_makefile_frag="config/mh-darwin"
1336 ;;
1337 powerpc-*-aix*)
1338 host_makefile_frag="config/mh-ppc-aix"
1339 ;;
1340 rs6000-*-aix*)
1341 host_makefile_frag="config/mh-ppc-aix"
1342 ;;
1343 esac
1344 fi
1346 if test "${build}" != "${host}" ; then
1347 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1348 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1349 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1350 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1351 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1352 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1353 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
1354 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1355 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1356 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1357 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1358 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1359 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1360 else
1361 AR_FOR_BUILD="\$(AR)"
1362 AS_FOR_BUILD="\$(AS)"
1363 CC_FOR_BUILD="\$(CC)"
1364 CXX_FOR_BUILD="\$(CXX)"
1365 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1366 GOC_FOR_BUILD="\$(GOC)"
1367 GDC_FOR_BUILD="\$(GDC)"
1368 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1369 LD_FOR_BUILD="\$(LD)"
1370 NM_FOR_BUILD="\$(NM)"
1371 RANLIB_FOR_BUILD="\$(RANLIB)"
1372 WINDRES_FOR_BUILD="\$(WINDRES)"
1373 WINDMC_FOR_BUILD="\$(WINDMC)"
1374 fi
1376 AC_PROG_CC
1377 AC_PROG_CXX
1379 # We must set the default linker to the linker used by gcc for the correct
1380 # operation of libtool. If LD is not defined and we are using gcc, try to
1381 # set the LD default to the ld used by gcc.
1382 if test -z "$LD"; then
1383 if test "$GCC" = yes; then
1384 case $build in
1385 *-*-mingw*)
1386 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1387 *)
1388 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1389 esac
1390 case $gcc_prog_ld in
1391 # Accept absolute paths.
1392 [[\\/]* | [A-Za-z]:[\\/]*)]
1393 LD="$gcc_prog_ld" ;;
1394 esac
1395 fi
1396 fi
1398 # Check whether -static-libstdc++ -static-libgcc is supported.
1399 have_static_libs=no
1400 if test "$GCC" = yes; then
1401 saved_LDFLAGS="$LDFLAGS"
1403 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1404 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1405 AC_LANG_PUSH(C++)
1406 AC_LINK_IFELSE([AC_LANG_SOURCE([
1407 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1408 #error -static-libstdc++ not implemented
1409 #endif
1410 int main() {}])],
1411 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1412 [AC_MSG_RESULT([no])])
1413 AC_LANG_POP(C++)
1415 LDFLAGS="$saved_LDFLAGS"
1416 fi
1418 ACX_PROG_GNAT
1419 ACX_PROG_CMP_IGNORE_INITIAL
1421 AC_ARG_ENABLE([bootstrap],
1422 [AS_HELP_STRING([--enable-bootstrap],
1423 [enable bootstrapping @<:@yes if native build@:>@])],,
1424 enable_bootstrap=default)
1426 # Issue errors and warnings for invalid/strange bootstrap combinations.
1427 if test -r $srcdir/gcc/configure; then
1428 have_compiler=yes
1429 else
1430 have_compiler=no
1431 fi
1433 case "$have_compiler:$host:$target:$enable_bootstrap" in
1434 *:*:*:no) ;;
1436 # Default behavior. Enable bootstrap if we have a compiler
1437 # and we are in a native configuration.
1438 yes:$build:$build:default)
1439 enable_bootstrap=yes ;;
1441 *:*:*:default)
1442 enable_bootstrap=no ;;
1444 # We have a compiler and we are in a native configuration, bootstrap is ok
1445 yes:$build:$build:yes)
1446 ;;
1448 # Other configurations, but we have a compiler. Assume the user knows
1449 # what he's doing.
1450 yes:*:*:yes)
1451 AC_MSG_WARN([trying to bootstrap a cross compiler])
1452 ;;
1454 # No compiler: if they passed --enable-bootstrap explicitly, fail
1455 no:*:*:yes)
1456 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1458 # Fail if wrong command line
1459 *)
1460 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1461 ;;
1462 esac
1464 # When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
1465 # C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1466 # require C++11 (or higher).
1467 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1468 CXX="$CXX -std=c++11"
1469 elif test "$have_compiler" = yes; then
1470 AX_CXX_COMPILE_STDCXX(11)
1472 if test "${build}" != "${host}"; then
1473 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1474 fi
1475 fi
1477 # Used for setting $lt_cv_objdir
1478 _LT_CHECK_OBJDIR
1480 # Check for GMP, MPFR and MPC
1481 gmplibs="-lmpc -lmpfr -lgmp"
1482 gmpinc=
1483 have_gmp=no
1485 # Specify a location for mpc
1486 # check for this first so it ends up on the link line before mpfr.
1487 AC_ARG_WITH(mpc,
1488 [AS_HELP_STRING([--with-mpc=PATH],
1489 [specify prefix directory for installed MPC package.
1490 Equivalent to --with-mpc-include=PATH/include
1491 plus --with-mpc-lib=PATH/lib])])
1492 AC_ARG_WITH(mpc-include,
1493 [AS_HELP_STRING([--with-mpc-include=PATH],
1494 [specify directory for installed MPC include files])])
1495 AC_ARG_WITH(mpc-lib,
1496 [AS_HELP_STRING([--with-mpc-lib=PATH],
1497 [specify directory for the installed MPC library])])
1499 if test "x$with_mpc" != x; then
1500 gmplibs="-L$with_mpc/lib $gmplibs"
1501 gmpinc="-I$with_mpc/include $gmpinc"
1502 fi
1503 if test "x$with_mpc_include" != x; then
1504 gmpinc="-I$with_mpc_include $gmpinc"
1505 fi
1506 if test "x$with_mpc_lib" != x; then
1507 gmplibs="-L$with_mpc_lib $gmplibs"
1508 fi
1509 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1510 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1511 gmpinc='-I$$s/mpc/src '"$gmpinc"
1512 # Do not test the mpc version. Assume that it is sufficient, since
1513 # it is in the source tree, and the library has not been built yet
1514 # but it would be included on the link line in the version check below
1515 # hence making the test fail.
1516 have_gmp=yes
1517 fi
1519 # Specify a location for mpfr
1520 # check for this first so it ends up on the link line before gmp.
1521 AC_ARG_WITH(mpfr-dir,
1522 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1523 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1524 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1526 AC_ARG_WITH(mpfr,
1527 [AS_HELP_STRING([--with-mpfr=PATH],
1528 [specify prefix directory for installed MPFR package.
1529 Equivalent to --with-mpfr-include=PATH/include
1530 plus --with-mpfr-lib=PATH/lib])])
1531 AC_ARG_WITH(mpfr-include,
1532 [AS_HELP_STRING([--with-mpfr-include=PATH],
1533 [specify directory for installed MPFR include files])])
1534 AC_ARG_WITH(mpfr-lib,
1535 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1536 [specify directory for the installed MPFR library])])
1538 if test "x$with_mpfr" != x; then
1539 gmplibs="-L$with_mpfr/lib $gmplibs"
1540 gmpinc="-I$with_mpfr/include $gmpinc"
1541 fi
1542 if test "x$with_mpfr_include" != x; then
1543 gmpinc="-I$with_mpfr_include $gmpinc"
1544 fi
1545 if test "x$with_mpfr_lib" != x; then
1546 gmplibs="-L$with_mpfr_lib $gmplibs"
1547 fi
1548 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1549 # MPFR v3.1.0 moved the sources into a src sub-directory.
1550 if ! test -d ${srcdir}/mpfr/src; then
1551 AC_MSG_ERROR([dnl
1552 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1553 fi
1554 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1555 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1556 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1557 # Do not test the mpfr version. Assume that it is sufficient, since
1558 # it is in the source tree, and the library has not been built yet
1559 # but it would be included on the link line in the version check below
1560 # hence making the test fail.
1561 have_gmp=yes
1562 fi
1564 # Specify a location for gmp
1565 AC_ARG_WITH(gmp-dir,
1566 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1567 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1568 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1570 AC_ARG_WITH(gmp,
1571 [AS_HELP_STRING([--with-gmp=PATH],
1572 [specify prefix directory for the installed GMP package.
1573 Equivalent to --with-gmp-include=PATH/include
1574 plus --with-gmp-lib=PATH/lib])])
1575 AC_ARG_WITH(gmp-include,
1576 [AS_HELP_STRING([--with-gmp-include=PATH],
1577 [specify directory for installed GMP include files])])
1578 AC_ARG_WITH(gmp-lib,
1579 [AS_HELP_STRING([--with-gmp-lib=PATH],
1580 [specify directory for the installed GMP library])])
1583 if test "x$with_gmp" != x; then
1584 gmplibs="-L$with_gmp/lib $gmplibs"
1585 gmpinc="-I$with_gmp/include $gmpinc"
1586 fi
1587 if test "x$with_gmp_include" != x; then
1588 gmpinc="-I$with_gmp_include $gmpinc"
1589 fi
1590 if test "x$with_gmp_lib" != x; then
1591 gmplibs="-L$with_gmp_lib $gmplibs"
1592 fi
1593 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1594 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1595 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1596 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1597 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1598 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1599 # Do not test the gmp version. Assume that it is sufficient, since
1600 # it is in the source tree, and the library has not been built yet
1601 # but it would be included on the link line in the version check below
1602 # hence making the test fail.
1603 have_gmp=yes
1604 fi
1606 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1607 have_gmp=yes
1608 saved_CFLAGS="$CFLAGS"
1609 CFLAGS="$CFLAGS $gmpinc"
1610 # Check for the recommended and required versions of GMP.
1611 AC_MSG_CHECKING([for the correct version of gmp.h])
1612 AC_TRY_COMPILE([#include "gmp.h"],[
1613 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1614 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1615 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1616 choke me
1617 #endif
1618 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1619 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1620 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1621 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1622 choke me
1623 #endif
1624 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1625 [AC_MSG_RESULT([no]); have_gmp=no])
1627 # If we have GMP, check the MPFR version.
1628 if test x"$have_gmp" = xyes; then
1629 # Check for the recommended and required versions of MPFR.
1630 AC_MSG_CHECKING([for the correct version of mpfr.h])
1631 AC_TRY_COMPILE([#include <gmp.h>
1632 #include <mpfr.h>],[
1633 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
1634 choke me
1635 #endif
1636 ], [AC_TRY_COMPILE([#include <gmp.h>
1637 #include <mpfr.h>],[
1638 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
1639 choke me
1640 #endif
1641 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1642 [AC_MSG_RESULT([no]); have_gmp=no])
1643 fi
1645 # Check for the MPC header version.
1646 if test x"$have_gmp" = xyes ; then
1647 # Check for the recommended and required versions of MPC.
1648 AC_MSG_CHECKING([for the correct version of mpc.h])
1649 AC_TRY_COMPILE([#include <mpc.h>],[
1650 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1651 choke me
1652 #endif
1653 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1654 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1655 choke me
1656 #endif
1657 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1658 [AC_MSG_RESULT([no]); have_gmp=no])
1659 fi
1661 # Now check the MPFR library.
1662 if test x"$have_gmp" = xyes; then
1663 saved_LIBS="$LIBS"
1664 LIBS="$LIBS $gmplibs"
1665 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1666 AC_TRY_LINK([#include <mpc.h>],[
1667 mpfr_t n;
1668 mpfr_t x;
1669 mpc_t c;
1670 int t;
1671 mpfr_init (n);
1672 mpfr_init (x);
1673 mpfr_atan2 (n, n, x, MPFR_RNDN);
1674 mpfr_erfc (n, x, MPFR_RNDN);
1675 mpfr_subnormalize (x, t, MPFR_RNDN);
1676 mpfr_clear(n);
1677 mpfr_clear(x);
1678 mpc_init2 (c, 53);
1679 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1680 mpc_cosh (c, c, MPC_RNDNN);
1681 mpc_pow (c, c, c, MPC_RNDNN);
1682 mpc_acosh (c, c, MPC_RNDNN);
1683 mpc_clear (c);
1684 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1685 LIBS="$saved_LIBS"
1686 fi
1688 CFLAGS="$saved_CFLAGS"
1690 # The library versions listed in the error message below should match
1691 # the HARD-minimums enforced above.
1692 if test x$have_gmp != xyes; then
1693 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
1694 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1695 their locations. Source code for these libraries can be found at
1696 their respective hosting sites as well as at
1697 https://gcc.gnu.org/pub/gcc/infrastructure/. See also
1698 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1699 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1700 make sure that you have installed both the libraries and the header
1701 files. They may be located in separate packages.])
1702 fi
1703 fi
1705 # Flags needed for both GMP, MPFR and/or MPC.
1706 AC_SUBST(gmplibs)
1707 AC_SUBST(gmpinc)
1708 AC_SUBST(extra_mpfr_configure_flags)
1709 AC_SUBST(extra_mpc_gmp_configure_flags)
1710 AC_SUBST(extra_mpc_mpfr_configure_flags)
1711 AC_SUBST(extra_isl_gmp_configure_flags)
1713 # Libraries to use for stage1 or when not bootstrapping.
1714 AC_ARG_WITH(stage1-libs,
1715 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1716 [if test "$withval" = "no" -o "$withval" = "yes"; then
1717 stage1_libs=
1718 else
1719 stage1_libs=$withval
1720 fi],
1721 [stage1_libs=])
1722 AC_SUBST(stage1_libs)
1724 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1725 # default is yes if gcc is being built; no otherwise. The reason for
1726 # this default is that gdb is sometimes linked against GNU Source
1727 # Highlight, which is a shared library that uses C++ exceptions. In
1728 # this case, -static-libstdc++ will cause crashes.
1729 AC_ARG_WITH(static-standard-libraries,
1730 [AS_HELP_STRING([--with-static-standard-libraries],
1731 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1732 [], [with_static_standard_libraries=auto])
1733 if test "$with_static_standard_libraries" = auto; then
1734 with_static_standard_libraries=$have_compiler
1735 fi
1737 # Linker flags to use for stage1 or when not bootstrapping.
1738 AC_ARG_WITH(stage1-ldflags,
1739 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1740 [if test "$withval" = "no" -o "$withval" = "yes"; then
1741 stage1_ldflags=
1742 else
1743 stage1_ldflags=$withval
1744 fi],
1745 [stage1_ldflags=
1746 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1747 # if supported. But if the user explicitly specified the libraries to use,
1748 # trust that they are doing what they want.
1749 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1750 -a "$have_static_libs" = yes; then
1751 stage1_ldflags="-static-libstdc++ -static-libgcc"
1752 fi])
1753 AC_SUBST(stage1_ldflags)
1755 # Libraries to use for stage2 and later builds.
1756 AC_ARG_WITH(boot-libs,
1757 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1758 [if test "$withval" = "no" -o "$withval" = "yes"; then
1759 poststage1_libs=
1760 else
1761 poststage1_libs=$withval
1762 fi],
1763 [poststage1_libs=])
1764 AC_SUBST(poststage1_libs)
1766 # Linker flags to use for stage2 and later builds.
1767 AC_ARG_WITH(boot-ldflags,
1768 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1769 [linker flags for stage2 and later])],
1770 [if test "$withval" = "no" -o "$withval" = "yes"; then
1771 poststage1_ldflags=
1772 else
1773 poststage1_ldflags=$withval
1774 fi],
1775 [poststage1_ldflags=
1776 # In stages 2 and 3, default to linking libstdc++ and libgcc
1777 # statically. But if the user explicitly specified the libraries to
1778 # use, trust that they are doing what they want.
1779 if test "$poststage1_libs" = ""; then
1780 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1781 fi])
1782 AC_SUBST(poststage1_ldflags)
1784 # GCC GRAPHITE dependency isl.
1785 # Basic setup is inlined here, actual checks are in config/isl.m4
1787 AC_ARG_WITH(isl,
1788 [AS_HELP_STRING(
1789 [--with-isl=PATH],
1790 [Specify prefix directory for the installed isl package.
1791 Equivalent to --with-isl-include=PATH/include
1792 plus --with-isl-lib=PATH/lib])])
1794 # Treat --without-isl as a request to disable
1795 # GRAPHITE support and skip all following checks.
1796 if test "x$with_isl" != "xno"; then
1797 # Check for isl
1798 dnl Provide configure switches and initialize islinc & isllibs
1799 dnl with user input.
1800 ISL_INIT_FLAGS
1801 dnl The versions of isl that work for Graphite
1802 ISL_CHECK_VERSION()
1803 dnl Only execute fail-action, if isl has been requested.
1804 ISL_IF_FAILED([
1805 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1806 fi
1808 # If the isl check failed, disable builds of in-tree variant of isl
1809 if test "x$with_isl" = xno ||
1810 test "x$gcc_cv_isl" = xno; then
1811 noconfigdirs="$noconfigdirs isl"
1812 islinc=
1813 fi
1815 AC_SUBST(isllibs)
1816 AC_SUBST(islinc)
1818 # Check for LTO support.
1819 AC_ARG_ENABLE(lto,
1820 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1821 enable_lto=$enableval,
1822 enable_lto=yes; default_enable_lto=yes)
1824 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1825 build_lto_plugin=yes
1826 ],[if test x"$default_enable_lto" = x"yes" ; then
1827 case $target in
1828 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1829 # On other non-ELF platforms, LTO has yet to be validated.
1830 *) enable_lto=no ;;
1831 esac
1832 else
1833 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1834 # It would also be nice to check the binutils support, but we don't
1835 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1836 # warn during gcc/ subconfigure; unless you're bootstrapping with
1837 # -flto it won't be needed until after installation anyway.
1838 case $target in
1839 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1840 *) if test x"$enable_lto" = x"yes"; then
1841 AC_MSG_ERROR([LTO support is not enabled for this target.])
1842 fi
1843 ;;
1844 esac
1845 fi
1846 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1847 # Build it unless LTO was explicitly disabled.
1848 case $target in
1849 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1850 *) ;;
1851 esac
1852 ])
1854 AC_ARG_ENABLE(linker-plugin-configure-flags,
1855 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1856 [additional flags for configuring linker plugins @<:@none@:>@])],
1857 extra_linker_plugin_configure_flags=$enableval,
1858 extra_linker_plugin_configure_flags=)
1859 AC_SUBST(extra_linker_plugin_configure_flags)
1860 AC_ARG_ENABLE(linker-plugin-flags,
1861 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1862 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1863 extra_linker_plugin_flags=$enableval,
1864 extra_linker_plugin_flags=)
1865 AC_SUBST(extra_linker_plugin_flags)
1867 # Enable --enable-host-shared.
1868 # Checked early to determine whether jit is an 'all' language
1869 AC_ARG_ENABLE(host-shared,
1870 [AS_HELP_STRING([--enable-host-shared],
1871 [build host code as shared libraries])],
1872 [host_shared=$enableval], [host_shared=no])
1873 AC_SUBST(host_shared)
1875 # By default, C and C++ are the only stage 1 languages.
1876 stage1_languages=,c,
1878 # Target libraries that we bootstrap.
1879 bootstrap_target_libs=,target-libgcc,
1881 # Figure out what language subdirectories are present.
1882 # Look if the user specified --enable-languages="..."; if not, use
1883 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1884 # go away some day.
1885 # NB: embedded tabs in this IF block -- do not untabify
1886 if test -d ${srcdir}/gcc; then
1887 if test x"${enable_languages+set}" != xset; then
1888 if test x"${LANGUAGES+set}" = xset; then
1889 enable_languages="${LANGUAGES}"
1890 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1891 else
1892 enable_languages=default
1893 fi
1894 else
1895 if test x"${enable_languages}" = x ||
1896 test x"${enable_languages}" = xyes;
1897 then
1898 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1899 exit 1
1900 fi
1901 fi
1902 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1904 # 'f95' is the old name for the 'fortran' language. We issue a warning
1905 # and make the substitution.
1906 case ,${enable_languages}, in
1907 *,f95,*)
1908 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1909 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1910 ;;
1911 esac
1913 # If bootstrapping, C++ must be enabled.
1914 case ",$enable_languages,:$enable_bootstrap" in
1915 *,c++,*:*) ;;
1916 *:yes)
1917 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1918 enable_languages="${enable_languages},c++"
1919 else
1920 AC_MSG_ERROR([bootstrapping requires c++ sources])
1921 fi
1922 ;;
1923 esac
1925 # First scan to see if an enabled language requires some other language.
1926 # We assume that a given config-lang.in will list all the language
1927 # front ends it requires, even if some are required indirectly.
1928 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1929 case ${lang_frag} in
1930 ..) ;;
1931 # The odd quoting in the next line works around
1932 # an apparent bug in bash 1.12 on linux.
1933 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1934 *)
1935 # From the config-lang.in, get $language, $lang_requires, and
1936 # $lang_requires_boot_languages.
1937 language=
1938 lang_requires=
1939 lang_requires_boot_languages=
1940 # set srcdir during sourcing lang_frag to the gcc dir.
1941 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1942 # polutes this shell
1943 saved_srcdir=${srcdir}
1944 srcdir=${srcdir}/gcc . ${lang_frag}
1945 srcdir=${saved_srcdir}
1946 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1947 case ,${enable_languages}, in
1948 *,$other,*) ;;
1949 *,default,*) ;;
1950 *,all,*) ;;
1951 *,$language,*)
1952 echo " \`$other' language required by \`$language'; enabling" 1>&2
1953 enable_languages="${enable_languages},${other}"
1954 ;;
1955 esac
1956 done
1957 for other in ${lang_requires_boot_languages} ; do
1958 if test "$other" != "c"; then
1959 case ,${enable_stage1_languages}, in
1960 *,$other,*) ;;
1961 *,default,*) ;;
1962 *,all,*) ;;
1963 *)
1964 case ,${enable_languages}, in
1965 *,$language,*)
1966 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1967 enable_stage1_languages="$enable_stage1_languages,${other}"
1968 ;;
1969 esac
1970 ;;
1971 esac
1972 fi
1973 done
1974 ;;
1975 esac
1976 done
1978 new_enable_languages=,c,
1980 # If LTO is enabled, add the LTO front end.
1981 if test "$enable_lto" = "yes" ; then
1982 case ,${enable_languages}, in
1983 *,lto,*) ;;
1984 *) enable_languages="${enable_languages},lto" ;;
1985 esac
1986 if test "${build_lto_plugin}" = "yes" ; then
1987 configdirs="$configdirs lto-plugin"
1988 fi
1989 fi
1991 # If we're building an offloading compiler, add the LTO front end.
1992 if test x"$enable_as_accelerator_for" != x ; then
1993 case ,${enable_languages}, in
1994 *,lto,*) ;;
1995 *) enable_languages="${enable_languages},lto" ;;
1996 esac
1997 fi
1999 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
2000 potential_languages=,c,
2002 enabled_target_libs=
2003 disabled_target_libs=
2005 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2006 case ${lang_frag} in
2007 ..) ;;
2008 # The odd quoting in the next line works around
2009 # an apparent bug in bash 1.12 on linux.
2010 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2011 *)
2012 # From the config-lang.in, get $language, $target_libs,
2013 # $lang_dirs, $boot_language, and $build_by_default
2014 language=
2015 target_libs=
2016 lang_dirs=
2017 subdir_requires=
2018 boot_language=no
2019 build_by_default=yes
2020 # set srcdir during sourcing. See above about save & restore
2021 saved_srcdir=${srcdir}
2022 srcdir=${srcdir}/gcc . ${lang_frag}
2023 srcdir=${saved_srcdir}
2024 if test x${language} = x; then
2025 echo "${lang_frag} doesn't set \$language." 1>&2
2026 exit 1
2027 fi
2029 if test "$language" = "c++"; then
2030 boot_language=yes
2031 fi
2033 add_this_lang=no
2034 # C is always enabled, so no need to add it again
2035 if test "$language" != "c"; then
2036 case ,${enable_languages}, in
2037 *,${language},*)
2038 # Language was explicitly selected; include it
2039 add_this_lang=yes
2040 ;;
2041 *,all,*)
2042 # All languages are enabled
2043 add_this_lang=all
2044 ;;
2045 *,default,*)
2046 # 'default' was selected, select it if it is a default language
2047 add_this_lang=${build_by_default}
2048 ;;
2049 esac
2050 fi
2052 # Disable languages that need other directories if these aren't available.
2053 for i in $subdir_requires; do
2054 test -f "$srcdir/gcc/$i/config-lang.in" && continue
2055 case ${add_this_lang} in
2056 yes)
2057 # Specifically requested language; tell them.
2058 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2059 ;;
2060 all)
2061 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2062 add_this_lang=unsupported
2063 ;;
2064 *)
2065 # Silently disable.
2066 add_this_lang=unsupported
2067 ;;
2068 esac
2069 done
2071 # Disable Ada if no preexisting GNAT is available.
2072 case ${add_this_lang}:${language}:${have_gnat} in
2073 yes:ada:no)
2074 # Specifically requested language; tell them.
2075 AC_MSG_ERROR([GNAT is required to build $language])
2076 ;;
2077 all:ada:no)
2078 AC_MSG_WARN([GNAT is required to build $language])
2079 add_this_lang=unsupported
2080 ;;
2081 *:ada:no)
2082 # Silently disable.
2083 add_this_lang=unsupported
2084 ;;
2085 esac
2087 # Disable jit if -enable-host-shared not specified
2088 # but not if building for Mingw. All code in Windows
2089 # is position independent code (PIC).
2090 case $target in
2091 *mingw*) ;;
2092 *)
2093 case ${add_this_lang}:${language}:${host_shared} in
2094 yes:jit:no)
2095 # PR jit/64780: explicitly specify --enable-host-shared
2096 AC_MSG_ERROR([
2097 Enabling language "jit" requires --enable-host-shared.
2099 --enable-host-shared typically slows the rest of the compiler down by
2100 a few %, so you must explicitly enable it.
2102 If you want to build both the jit and the regular compiler, it is often
2103 best to do this via two separate configure/builds, in separate
2104 directories, to avoid imposing the performance cost of
2105 --enable-host-shared on the regular compiler.])
2106 ;;
2107 all:jit:no)
2108 AC_MSG_WARN([--enable-host-shared required to build $language])
2109 add_this_lang=unsupported
2110 ;;
2111 *:jit:no)
2112 # Silently disable.
2113 add_this_lang=unsupported
2114 ;;
2115 esac
2116 ;;
2117 esac
2119 # Disable a language that is unsupported by the target.
2120 case "${add_this_lang}: $unsupported_languages " in
2121 no:*) ;;
2122 unsupported:*) ;;
2123 *:*" $language "*)
2124 AC_MSG_WARN([${language} not supported for this target])
2125 add_this_lang=unsupported
2126 ;;
2127 esac
2129 case $add_this_lang in
2130 unsupported)
2131 # Remove language-dependent dirs.
2132 disabled_target_libs="$disabled_target_libs $target_libs"
2133 noconfigdirs="$noconfigdirs $lang_dirs"
2134 ;;
2135 no)
2136 # Remove language-dependent dirs; still show language as supported.
2137 disabled_target_libs="$disabled_target_libs $target_libs"
2138 noconfigdirs="$noconfigdirs $lang_dirs"
2139 potential_languages="${potential_languages}${language},"
2140 ;;
2141 all|yes)
2142 new_enable_languages="${new_enable_languages}${language},"
2143 potential_languages="${potential_languages}${language},"
2144 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2145 enabled_target_libs="$enabled_target_libs $target_libs"
2146 case "${boot_language}:,$enable_stage1_languages," in
2147 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2148 # Add to (comma-separated) list of stage 1 languages.
2149 case ",$stage1_languages," in
2150 *,$language,* | ,yes, | ,all,) ;;
2151 *) stage1_languages="${stage1_languages}${language}," ;;
2152 esac
2153 # We need to bootstrap any supporting libraries.
2154 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2155 ;;
2156 esac
2157 ;;
2158 esac
2159 ;;
2160 esac
2161 done
2163 # Add target libraries which are only needed for disabled languages
2164 # to noconfigdirs.
2165 if test -n "$disabled_target_libs"; then
2166 for dir in $disabled_target_libs; do
2167 case " $enabled_target_libs " in
2168 *" ${dir} "*) ;;
2169 *) noconfigdirs="$noconfigdirs $dir" ;;
2170 esac
2171 done
2172 fi
2174 AC_ARG_ENABLE(stage1-languages,
2175 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2176 [choose additional languages to build during
2177 stage1. Mostly useful for compiler development])],
2178 [case ,${enable_stage1_languages}, in
2179 ,no,|,,)
2180 # Set it to something that will have no effect in the loop below
2181 enable_stage1_languages=c ;;
2182 ,yes,)
2183 enable_stage1_languages=`echo $new_enable_languages | \
2184 sed -e "s/^,//" -e "s/,$//" ` ;;
2185 *,all,*)
2186 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2187 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2188 esac
2190 # Add "good" languages from enable_stage1_languages to stage1_languages,
2191 # while "bad" languages go in missing_languages. Leave no duplicates.
2192 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2193 case $potential_languages in
2194 *,$i,*)
2195 case $stage1_languages in
2196 *,$i,*) ;;
2197 *) stage1_languages="$stage1_languages$i," ;;
2198 esac ;;
2199 *)
2200 case $missing_languages in
2201 *,$i,*) ;;
2202 *) missing_languages="$missing_languages$i," ;;
2203 esac ;;
2204 esac
2205 done])
2207 # Remove leading/trailing commas that were added for simplicity
2208 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2209 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2210 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2211 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2213 if test "x$missing_languages" != x; then
2214 AC_MSG_ERROR([
2215 The following requested languages could not be built: ${missing_languages}
2216 Supported languages are: ${potential_languages}])
2217 fi
2218 if test "x$new_enable_languages" != "x$enable_languages"; then
2219 echo The following languages will be built: ${new_enable_languages}
2220 enable_languages="$new_enable_languages"
2221 fi
2223 AC_SUBST(stage1_languages)
2224 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2225 fi
2227 # Handle --disable-<component> generically.
2228 for dir in $configdirs $build_configdirs $target_configdirs ; do
2229 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2230 varname=`echo $dirname | sed -e s/+/_/g`
2231 if eval test x\${enable_${varname}} "=" xno ; then
2232 noconfigdirs="$noconfigdirs $dir"
2233 fi
2234 done
2236 # Check for Boehm's garbage collector
2237 AC_ARG_ENABLE(objc-gc,
2238 [AS_HELP_STRING([--enable-objc-gc],
2239 [enable use of Boehm's garbage collector with the
2240 GNU Objective-C runtime])])
2241 AC_ARG_WITH([target-bdw-gc],
2242 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2243 [specify prefix directory for installed bdw-gc package.
2244 Equivalent to --with-target-bdw-gc-include=PATH/include
2245 plus --with-target-bdw-gc-lib=PATH/lib])])
2246 AC_ARG_WITH([target-bdw-gc-include],
2247 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2248 [specify directories for installed bdw-gc include files])])
2249 AC_ARG_WITH([target-bdw-gc-lib],
2250 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2251 [specify directories for installed bdw-gc library])])
2253 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2254 AC_MSG_CHECKING([for bdw garbage collector])
2255 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2256 dnl no bdw-gw options, assume default locations
2257 AC_MSG_RESULT([using bdw-gc in default locations])
2258 else
2259 dnl bdw-gw options, first error checking, complete checking in libobjc
2260 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2261 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2262 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2263 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2264 else
2265 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2266 fi
2267 fi
2268 esac
2270 # Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2271 case ,${enable_languages}, in
2272 *,c++,*)
2273 # Disable libitm, libsanitizer if we're not building libstdc++
2274 case "${noconfigdirs}" in
2275 *target-libstdc++-v3*)
2276 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2277 ;;
2278 *) ;;
2279 esac
2280 ;;
2281 *)
2282 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2283 ;;
2284 esac
2286 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2287 # $build_configdirs and $target_configdirs.
2288 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2290 notsupp=""
2291 for dir in . $skipdirs $noconfigdirs ; do
2292 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2293 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2294 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2295 if test -r $srcdir/$dirname/configure ; then
2296 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2297 true
2298 else
2299 notsupp="$notsupp $dir"
2300 fi
2301 fi
2302 fi
2303 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2304 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2305 if test -r $srcdir/$dirname/configure ; then
2306 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2307 true
2308 else
2309 notsupp="$notsupp $dir"
2310 fi
2311 fi
2312 fi
2313 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2314 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2315 if test -r $srcdir/$dirname/configure ; then
2316 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2317 true
2318 else
2319 notsupp="$notsupp $dir"
2320 fi
2321 fi
2322 fi
2323 done
2325 # Quietly strip out all directories which aren't configurable in this tree.
2326 # This relies on all configurable subdirectories being autoconfiscated, which
2327 # is now the case.
2328 build_configdirs_all="$build_configdirs"
2329 build_configdirs=
2330 for i in ${build_configdirs_all} ; do
2331 j=`echo $i | sed -e s/build-//g`
2332 if test -f ${srcdir}/$j/configure ; then
2333 build_configdirs="${build_configdirs} $i"
2334 fi
2335 done
2337 configdirs_all="$configdirs"
2338 configdirs=
2339 for i in ${configdirs_all} ; do
2340 if test -f ${srcdir}/$i/configure ; then
2341 configdirs="${configdirs} $i"
2342 fi
2343 done
2345 target_configdirs_all="$target_configdirs"
2346 target_configdirs=
2347 for i in ${target_configdirs_all} ; do
2348 j=`echo $i | sed -e s/target-//g`
2349 if test -f ${srcdir}/$j/configure ; then
2350 target_configdirs="${target_configdirs} $i"
2351 fi
2352 done
2354 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2355 # so we have to add it after the preceding checks.
2356 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2357 then
2358 case " $configdirs " in
2359 *" libiberty "*)
2360 # If we can build libiberty, we can also build libiberty-linker-plugin.
2361 configdirs="$configdirs libiberty-linker-plugin"
2362 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2363 --with-libiberty=../libiberty-linker-plugin";;
2364 *)
2365 AC_MSG_ERROR([libiberty missing]);;
2366 esac
2367 fi
2369 # Sometimes we have special requirements for the host libiberty.
2370 extra_host_libiberty_configure_flags=
2371 extra_host_zlib_configure_flags=
2372 case " $configdirs " in
2373 *" lto-plugin "* | *" libcc1 "*)
2374 # When these are to be built as shared libraries, the same applies to
2375 # libiberty.
2376 extra_host_libiberty_configure_flags=--enable-shared
2377 ;;
2378 *" bfd "*)
2379 # When bfd is to be built as a shared library, the same applies to
2380 # zlib.
2381 if test "$enable_shared" = "yes"; then
2382 extra_host_zlib_configure_flags=--enable-host-shared
2383 fi
2384 ;;
2385 esac
2386 AC_SUBST(extra_host_libiberty_configure_flags)
2387 AC_SUBST(extra_host_zlib_configure_flags)
2389 # Produce a warning message for the subdirs we can't configure.
2390 # This isn't especially interesting in the Cygnus tree, but in the individual
2391 # FSF releases, it's important to let people know when their machine isn't
2392 # supported by the one or two programs in a package.
2394 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2395 # If $appdirs is non-empty, at least one of those directories must still
2396 # be configured, or we error out. (E.g., if the gas release supports a
2397 # specified target in some subdirs but not the gas subdir, we shouldn't
2398 # pretend that all is well.)
2399 if test -n "$appdirs" ; then
2400 for dir in $appdirs ; do
2401 if test -r $dir/Makefile.in ; then
2402 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2403 appdirs=""
2404 break
2405 fi
2406 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2407 appdirs=""
2408 break
2409 fi
2410 fi
2411 done
2412 if test -n "$appdirs" ; then
2413 echo "*** This configuration is not supported by this package." 1>&2
2414 exit 1
2415 fi
2416 fi
2417 # Okay, some application will build, or we don't care to check. Still
2418 # notify of subdirs not getting built.
2419 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2420 echo " ${notsupp}" 1>&2
2421 echo " (Any other directories should still work fine.)" 1>&2
2422 fi
2424 case "$host" in
2425 *msdosdjgpp*)
2426 enable_gdbtk=no ;;
2427 esac
2429 # To find our prefix, in gcc_cv_tool_prefix.
2430 ACX_TOOL_DIRS
2432 copy_dirs=
2434 AC_ARG_WITH([build-sysroot],
2435 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2436 [use sysroot as the system root during the build])],
2437 [if test x"$withval" != x ; then
2438 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2439 fi],
2440 [SYSROOT_CFLAGS_FOR_TARGET=])
2441 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2443 AC_ARG_WITH([debug-prefix-map],
2444 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2445 [map A to B, C to D ... in debug information])],
2446 [if test x"$withval" != x; then
2447 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2448 for debug_map in $withval; do
2449 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2450 done
2451 fi],
2452 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2453 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2455 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2456 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2457 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2458 # We want to ensure that TARGET libraries (which we know are built with
2459 # gcc) are built with "-O2 -g", so include those options when setting
2460 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2461 if test "x$CFLAGS_FOR_TARGET" = x; then
2462 if test "x${is_cross_compiler}" = xyes; then
2463 CFLAGS_FOR_TARGET="-g -O2"
2464 else
2465 CFLAGS_FOR_TARGET=$CFLAGS
2466 case " $CFLAGS " in
2467 *" -O2 "*) ;;
2468 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2469 esac
2470 case " $CFLAGS " in
2471 *" -g "* | *" -g3 "*) ;;
2472 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2473 esac
2474 fi
2475 fi
2476 AC_SUBST(CFLAGS_FOR_TARGET)
2478 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2479 if test "x${is_cross_compiler}" = xyes; then
2480 CXXFLAGS_FOR_TARGET="-g -O2"
2481 else
2482 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2483 case " $CXXFLAGS " in
2484 *" -O2 "*) ;;
2485 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2486 esac
2487 case " $CXXFLAGS " in
2488 *" -g "* | *" -g3 "*) ;;
2489 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2490 esac
2491 fi
2492 fi
2493 AC_SUBST(CXXFLAGS_FOR_TARGET)
2495 AC_SUBST(LDFLAGS_FOR_TARGET)
2497 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2498 # the named directory are copied to $(tooldir)/sys-include.
2499 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2500 if test x${is_cross_compiler} = xno ; then
2501 echo 1>&2 '***' --with-headers is only supported when cross compiling
2502 exit 1
2503 fi
2504 if test x"${with_headers}" != xyes ; then
2505 x=${gcc_cv_tool_prefix}
2506 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2507 fi
2508 fi
2510 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2511 # the name directories are copied to $(tooldir)/lib. Multiple directories
2512 # are permitted.
2513 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2514 if test x${is_cross_compiler} = xno ; then
2515 echo 1>&2 '***' --with-libs is only supported when cross compiling
2516 exit 1
2517 fi
2518 if test x"${with_libs}" != xyes ; then
2519 # Copy the libraries in reverse order, so that files in the first named
2520 # library override files in subsequent libraries.
2521 x=${gcc_cv_tool_prefix}
2522 for l in ${with_libs}; do
2523 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2524 done
2525 fi
2526 fi
2528 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2529 #
2530 # This is done by determining whether or not the appropriate directory
2531 # is available, and by checking whether or not specific configurations
2532 # have requested that this magic not happen.
2533 #
2534 # The command line options always override the explicit settings in
2535 # configure.ac, and the settings in configure.ac override this magic.
2536 #
2537 # If the default for a toolchain is to use GNU as and ld, and you don't
2538 # want to do that, then you should use the --without-gnu-as and
2539 # --without-gnu-ld options for the configure script. Similarly, if
2540 # the default is to use the included zlib and you don't want to do that,
2541 # you should use the --with-system-zlib option for the configure script.
2543 if test x${use_gnu_as} = x &&
2544 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2545 with_gnu_as=yes
2546 extra_host_args="$extra_host_args --with-gnu-as"
2547 fi
2549 if test x${use_gnu_ld} = x &&
2550 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2551 with_gnu_ld=yes
2552 extra_host_args="$extra_host_args --with-gnu-ld"
2553 fi
2555 if test x${use_included_zlib} = x &&
2556 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2557 :
2558 else
2559 with_system_zlib=yes
2560 extra_host_args="$extra_host_args --with-system-zlib"
2561 fi
2563 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2564 # can detect this case.
2566 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2567 with_newlib=yes
2568 extra_host_args="$extra_host_args --with-newlib"
2569 fi
2571 # Handle ${copy_dirs}
2572 set fnord ${copy_dirs}
2573 shift
2574 while test $# != 0 ; do
2575 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2576 :
2577 else
2578 echo Copying $1 to $2
2580 # Use the install script to create the directory and all required
2581 # parent directories.
2582 if test -d $2 ; then
2583 :
2584 else
2585 echo >config.temp
2586 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2587 fi
2589 # Copy the directory, assuming we have tar.
2590 # FIXME: Should we use B in the second tar? Not all systems support it.
2591 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2593 # It is the responsibility of the user to correctly adjust all
2594 # symlinks. If somebody can figure out how to handle them correctly
2595 # here, feel free to add the code.
2597 echo $1 > $2/COPIED
2598 fi
2599 shift; shift
2600 done
2602 # Determine a target-dependent exec_prefix that the installed
2603 # gcc will search in. Keep this list sorted by triplet, with
2604 # the *-*-osname triplets last.
2605 md_exec_prefix=
2606 case "${target}" in
2607 i[[34567]]86-pc-msdosdjgpp*)
2608 md_exec_prefix=/dev/env/DJDIR/bin
2609 ;;
2610 *-*-hpux* | \
2611 *-*-nto-qnx* | \
2612 *-*-solaris2*)
2613 md_exec_prefix=/usr/ccs/bin
2614 ;;
2615 esac
2617 extra_arflags_for_target=
2618 extra_nmflags_for_target=
2619 extra_ranlibflags_for_target=
2620 target_makefile_frag=/dev/null
2621 case "${target}" in
2622 spu-*-*)
2623 target_makefile_frag="config/mt-spu"
2624 ;;
2625 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2626 target_makefile_frag="config/mt-sde"
2627 ;;
2628 mipsisa*-*-elfoabi*)
2629 target_makefile_frag="config/mt-mips-elfoabi"
2630 ;;
2631 mips*-*-*linux* | mips*-*-gnu*)
2632 target_makefile_frag="config/mt-mips-gnu"
2633 ;;
2634 nios2-*-elf*)
2635 target_makefile_frag="config/mt-nios2-elf"
2636 ;;
2637 *-*-linux-android*)
2638 target_makefile_frag="config/mt-android"
2639 ;;
2640 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2641 target_makefile_frag="config/mt-gnu"
2642 ;;
2643 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2644 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2645 # commands to handle both 32-bit and 64-bit objects. These flags are
2646 # harmless if we're using GNU nm or ar.
2647 extra_arflags_for_target=" -X32_64"
2648 extra_nmflags_for_target=" -B -X32_64"
2649 ;;
2650 esac
2652 alphaieee_frag=/dev/null
2653 case $target in
2654 alpha*-*-*)
2655 # This just makes sure to use the -mieee option to build target libs.
2656 # This should probably be set individually by each library.
2657 alphaieee_frag="config/mt-alphaieee"
2658 ;;
2659 esac
2661 # If --enable-target-optspace always use -Os instead of -O2 to build
2662 # the target libraries, similarly if it is not specified, use -Os
2663 # on selected platforms.
2664 ospace_frag=/dev/null
2665 case "${enable_target_optspace}:${target}" in
2666 yes:*)
2667 ospace_frag="config/mt-ospace"
2668 ;;
2669 :d30v-*)
2670 ospace_frag="config/mt-d30v"
2671 ;;
2672 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2673 ospace_frag="config/mt-ospace"
2674 ;;
2675 no:* | :*)
2676 ;;
2677 *)
2678 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2679 ;;
2680 esac
2682 # Some systems (e.g., one of the i386-aix systems the gas testers are
2683 # using) don't handle "\$" correctly, so don't use it here.
2684 tooldir='${exec_prefix}'/${target_noncanonical}
2685 build_tooldir=${tooldir}
2687 # Create a .gdbinit file which runs the one in srcdir
2688 # and tells GDB to look there for source files.
2690 if test -r ${srcdir}/.gdbinit ; then
2691 case ${srcdir} in
2692 .) ;;
2693 *) cat > ./.gdbinit <<EOF
2694 # ${NO_EDIT}
2695 dir ${srcdir}
2696 dir .
2697 source ${srcdir}/.gdbinit
2698 EOF
2699 ;;
2700 esac
2701 fi
2703 # Make sure that the compiler is able to generate an executable. If it
2704 # can't, we are probably in trouble. We don't care whether we can run the
2705 # executable--we might be using a cross compiler--we only care whether it
2706 # can be created. At this point the main configure script has set CC.
2707 we_are_ok=no
2708 echo "int main () { return 0; }" > conftest.c
2709 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2710 if test $? = 0 ; then
2711 if test -s conftest || test -s conftest.exe ; then
2712 we_are_ok=yes
2713 fi
2714 fi
2715 case $we_are_ok in
2716 no)
2717 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2718 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2719 rm -f conftest*
2720 exit 1
2721 ;;
2722 esac
2723 rm -f conftest*
2725 # Decide which environment variable is used to find dynamic libraries.
2726 case "${host}" in
2727 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2728 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2729 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2730 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2731 esac
2733 # On systems where the dynamic library environment variable is PATH,
2734 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2735 # built executables to PATH.
2736 if test "$RPATH_ENVVAR" = PATH; then
2737 GCC_SHLIB_SUBDIR=/shlib
2738 else
2739 GCC_SHLIB_SUBDIR=
2740 fi
2742 # Adjust the toplevel makefile according to whether bootstrap was selected.
2743 case $enable_bootstrap in
2744 yes)
2745 bootstrap_suffix=bootstrap
2746 BUILD_CONFIG=bootstrap-debug
2747 ;;
2748 no)
2749 bootstrap_suffix=no-bootstrap
2750 BUILD_CONFIG=
2751 ;;
2752 esac
2754 AC_MSG_CHECKING(for default BUILD_CONFIG)
2756 AC_ARG_WITH([build-config],
2757 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2758 [use config/NAME.mk build configuration])],
2759 [case $with_build_config in
2760 yes) with_build_config= ;;
2761 no) with_build_config= BUILD_CONFIG= ;;
2762 esac])
2764 if test "x${with_build_config}" != x; then
2765 BUILD_CONFIG=$with_build_config
2766 else
2767 case $BUILD_CONFIG in
2768 bootstrap-debug)
2769 if echo "int f (void) { return 0; }" > conftest.c &&
2770 ${CC} -c conftest.c &&
2771 mv conftest.o conftest.o.g0 &&
2772 ${CC} -c -g conftest.c &&
2773 mv conftest.o conftest.o.g &&
2774 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2775 :
2776 else
2777 BUILD_CONFIG=
2778 fi
2779 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2780 ;;
2781 esac
2782 fi
2783 AC_MSG_RESULT($BUILD_CONFIG)
2784 AC_SUBST(BUILD_CONFIG)
2786 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2787 AC_MSG_CHECKING([for --enable-vtable-verify])
2788 AC_ARG_ENABLE(vtable-verify,
2789 [AS_HELP_STRING([--enable-vtable-verify],
2790 [Enable vtable verification feature])],
2791 [case "$enableval" in
2792 yes) enable_vtable_verify=yes ;;
2793 no) enable_vtable_verify=no ;;
2794 *) enable_vtable_verify=no;;
2795 esac],
2796 [enable_vtable_verify=no])
2797 AC_MSG_RESULT($enable_vtable_verify)
2799 # Record target_configdirs and the configure arguments for target and
2800 # build configuration in Makefile.
2801 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2802 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2803 bootstrap_fixincludes=no
2805 # If we are building libgomp, bootstrap it.
2806 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2807 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2808 fi
2810 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2811 # or bootstrap-ubsan, bootstrap it.
2812 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2813 case "$BUILD_CONFIG" in
2814 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
2815 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2816 bootstrap_fixincludes=yes
2817 ;;
2818 esac
2819 fi
2821 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2822 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2823 test "$enable_vtable_verify" != no; then
2824 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2825 fi
2827 # Determine whether gdb needs tk/tcl or not.
2828 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2829 # and in that case we want gdb to be built without tk. Ugh!
2830 # In fact I believe gdb is the *only* package directly dependent on tk,
2831 # so we should be able to put the 'maybe's in unconditionally and
2832 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2833 # 100% sure that that's safe though.
2835 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2836 case "$enable_gdbtk" in
2837 no)
2838 GDB_TK="" ;;
2839 yes)
2840 GDB_TK="${gdb_tk}" ;;
2841 *)
2842 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2843 # distro. Eventually someone will fix this and move Insight, nee
2844 # gdbtk to a separate directory.
2845 if test -d ${srcdir}/gdb/gdbtk ; then
2846 GDB_TK="${gdb_tk}"
2847 else
2848 GDB_TK=""
2849 fi
2850 ;;
2851 esac
2852 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2853 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2855 # gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
2856 # else does, only include them if one of these is built. The Makefile
2857 # provides the ordering, so it's enough here to add to the list.
2858 case " ${configdirs} " in
2859 *\ gdb\ *)
2860 configdirs="${configdirs} gnulib gdbsupport"
2861 ;;
2862 *\ gdbserver\ *)
2863 configdirs="${configdirs} gnulib gdbsupport"
2864 ;;
2865 esac
2867 # Strip out unwanted targets.
2869 # While at that, we remove Makefiles if we were started for recursive
2870 # configuration, so that the top-level Makefile reconfigures them,
2871 # like we used to do when configure itself was recursive.
2873 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2874 # but now we're fixing up the Makefile ourselves with the additional
2875 # commands passed to AC_CONFIG_FILES. Use separate variables
2876 # extrasub-{build,host,target} not because there is any reason to split
2877 # the substitutions up that way, but only to remain below the limit of
2878 # 99 commands in a script, for HP-UX sed.
2880 # Do not nest @if/@endif or @unless/@endunless pairs, because
2881 # configure will not warn you at all.
2883 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2884 yes:yes:*\ gold\ *:*,c++,*) ;;
2885 yes:yes:*\ gold\ *:*)
2886 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2887 ;;
2888 esac
2890 extrasub_build=
2891 for module in ${build_configdirs} ; do
2892 if test -z "${no_recursion}" \
2893 && test -f ${build_subdir}/${module}/Makefile; then
2894 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2895 rm -f ${build_subdir}/${module}/Makefile
2896 fi
2897 extrasub_build="$extrasub_build
2898 /^@if build-$module\$/d
2899 /^@endif build-$module\$/d
2900 /^@unless build-$module\$/,/^@endunless build-$module\$/d
2901 /^@if build-$module-$bootstrap_suffix\$/d
2902 /^@endif build-$module-$bootstrap_suffix\$/d
2903 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
2904 done
2905 extrasub_host=
2906 for module in ${configdirs} ; do
2907 if test -z "${no_recursion}"; then
2908 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2909 if test -f ${file}; then
2910 echo 1>&2 "*** removing ${file} to force reconfigure"
2911 rm -f ${file}
2912 fi
2913 done
2914 fi
2915 case ${module},${bootstrap_fixincludes} in
2916 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2917 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2918 esac
2919 extrasub_host="$extrasub_host
2920 /^@if $module\$/d
2921 /^@endif $module\$/d
2922 /^@unless $module\$/,/^@endunless $module\$/d
2923 /^@if $module-$host_bootstrap_suffix\$/d
2924 /^@endif $module-$host_bootstrap_suffix\$/d
2925 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
2926 done
2927 extrasub_target=
2928 for module in ${target_configdirs} ; do
2929 if test -z "${no_recursion}" \
2930 && test -f ${target_subdir}/${module}/Makefile; then
2931 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2932 rm -f ${target_subdir}/${module}/Makefile
2933 fi
2935 # We only bootstrap target libraries listed in bootstrap_target_libs.
2936 case $bootstrap_target_libs in
2937 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2938 *) target_bootstrap_suffix=no-bootstrap ;;
2939 esac
2941 extrasub_target="$extrasub_target
2942 /^@if target-$module\$/d
2943 /^@endif target-$module\$/d
2944 /^@unless target-$module\$/,/^@endunless target-$module\$/d
2945 /^@if target-$module-$target_bootstrap_suffix\$/d
2946 /^@endif target-$module-$target_bootstrap_suffix\$/d
2947 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
2948 done
2950 # Do the final fixup along with target modules.
2951 extrasub_target="$extrasub_target
2952 /^@if /,/^@endif /d
2953 /^@unless /d
2954 /^@endunless /d"
2956 # Create the serialization dependencies. This uses a temporary file.
2958 AC_ARG_ENABLE([serial-configure],
2959 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2960 [force sequential configuration of
2961 sub-packages for the host, target or build
2962 machine, or all sub-packages])])
2964 case ${enable_serial_configure} in
2965 yes)
2966 enable_serial_build_configure=yes
2967 enable_serial_host_configure=yes
2968 enable_serial_target_configure=yes
2969 ;;
2970 esac
2972 # These force 'configure's to be done one at a time, to avoid problems
2973 # with contention over a shared config.cache.
2974 rm -f serdep.tmp
2975 echo '# serdep.tmp' > serdep.tmp
2976 olditem=
2977 test "x${enable_serial_build_configure}" = xyes &&
2978 for item in ${build_configdirs} ; do
2979 case ${olditem} in
2980 "") ;;
2981 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2982 esac
2983 olditem=${item}
2984 done
2985 olditem=
2986 test "x${enable_serial_host_configure}" = xyes &&
2987 for item in ${configdirs} ; do
2988 case ${olditem} in
2989 "") ;;
2990 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2991 esac
2992 olditem=${item}
2993 done
2994 olditem=
2995 test "x${enable_serial_target_configure}" = xyes &&
2996 for item in ${target_configdirs} ; do
2997 case ${olditem} in
2998 "") ;;
2999 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
3000 esac
3001 olditem=${item}
3002 done
3003 serialization_dependencies=serdep.tmp
3004 AC_SUBST_FILE(serialization_dependencies)
3006 # Base args. Strip norecursion, cache-file, srcdir, host, build,
3007 # target, nonopt, and variable assignments. These are the ones we
3008 # might not want to pass down to subconfigures. The exception being
3009 # --cache-file=/dev/null, which is used to turn off the use of cache
3010 # files altogether, and which should be passed on to subconfigures.
3011 # Also strip program-prefix, program-suffix, and program-transform-name,
3012 # so that we can pass down a consistent program-transform-name.
3013 baseargs=
3014 tbaseargs=
3015 keep_next=no
3016 skip_next=no
3017 eval "set -- $ac_configure_args"
3018 for ac_arg
3019 do
3020 if test X"$skip_next" = X"yes"; then
3021 skip_next=no
3022 continue
3023 fi
3024 if test X"$keep_next" = X"yes"; then
3025 case $ac_arg in
3026 *\'*)
3027 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3028 esac
3029 baseargs="$baseargs '$ac_arg'"
3030 tbaseargs="$tbaseargs '$ac_arg'"
3031 keep_next=no
3032 continue
3033 fi
3035 # Handle separated arguments. Based on the logic generated by
3036 # autoconf 2.59.
3037 case $ac_arg in
3038 *=* | --config-cache | -C | -disable-* | --disable-* \
3039 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3040 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3041 | -with-* | --with-* | -without-* | --without-* | --x)
3042 separate_arg=no
3043 ;;
3044 -*)
3045 separate_arg=yes
3046 ;;
3047 *)
3048 separate_arg=no
3049 ;;
3050 esac
3052 skip_targ=no
3053 case $ac_arg in
3054 changequote(,)
3055 --with-* | --without-*)
3056 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3058 case $libopt in
3059 *[-_]include)
3060 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3061 ;;
3062 *[-_]lib)
3063 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3064 ;;
3065 *)
3066 lib=$libopt
3067 ;;
3068 esac
3069 changequote([,])
3071 case $lib in
3072 mpc | mpfr | gmp | isl)
3073 # If we're processing --with-$lib, --with-$lib-include or
3074 # --with-$lib-lib, for one of the libs above, and target is
3075 # different from host, don't pass the current argument to any
3076 # target library's configure.
3077 if test x$is_cross_compiler = xyes; then
3078 skip_targ=yes
3079 fi
3080 ;;
3081 esac
3082 ;;
3083 esac
3085 case "$ac_arg" in
3086 --cache-file=/dev/null | \
3087 -cache-file=/dev/null )
3088 # Handled here to avoid the test to skip args below.
3089 baseargs="$baseargs '$ac_arg'"
3090 tbaseargs="$tbaseargs '$ac_arg'"
3091 # Assert: $separate_arg should always be no.
3092 keep_next=$separate_arg
3093 ;;
3094 --no*)
3095 continue
3096 ;;
3097 --c* | \
3098 --sr* | \
3099 --ho* | \
3100 --bu* | \
3101 --t* | \
3102 --program-* | \
3103 -cache_file* | \
3104 -srcdir* | \
3105 -host* | \
3106 -build* | \
3107 -target* | \
3108 -program-prefix* | \
3109 -program-suffix* | \
3110 -program-transform-name* )
3111 skip_next=$separate_arg
3112 continue
3113 ;;
3114 -*)
3115 # An option. Add it.
3116 case $ac_arg in
3117 *\'*)
3118 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3119 esac
3120 baseargs="$baseargs '$ac_arg'"
3121 if test X"$skip_targ" = Xno; then
3122 tbaseargs="$tbaseargs '$ac_arg'"
3123 fi
3124 keep_next=$separate_arg
3125 ;;
3126 *)
3127 # Either a variable assignment, or a nonopt (triplet). Don't
3128 # pass it down; let the Makefile handle this.
3129 continue
3130 ;;
3131 esac
3132 done
3133 # Remove the initial space we just introduced and, as these will be
3134 # expanded by make, quote '$'.
3135 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3137 # Add in --program-transform-name, after --program-prefix and
3138 # --program-suffix have been applied to it. Autoconf has already
3139 # doubled dollar signs and backslashes in program_transform_name; we want
3140 # the backslashes un-doubled, and then the entire thing wrapped in single
3141 # quotes, because this will be expanded first by make and then by the shell.
3142 # Also, because we want to override the logic in subdir configure scripts to
3143 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3144 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3145 ${program_transform_name}
3146 EOF_SED
3147 gcc_transform_name=`cat conftestsed.out`
3148 rm -f conftestsed.out
3149 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3150 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3151 if test "$silent" = yes; then
3152 baseargs="$baseargs --silent"
3153 tbaseargs="$tbaseargs --silent"
3154 fi
3155 baseargs="$baseargs --disable-option-checking"
3156 tbaseargs="$tbaseargs --disable-option-checking"
3158 # Record and document user additions to sub configure arguments.
3159 AC_ARG_VAR([build_configargs],
3160 [additional configure arguments for build directories])
3161 AC_ARG_VAR([host_configargs],
3162 [additional configure arguments for host directories])
3163 AC_ARG_VAR([target_configargs],
3164 [additional configure arguments for target directories])
3166 # For the build-side libraries, we just need to pretend we're native,
3167 # and not use the same cache file. Multilibs are neither needed nor
3168 # desired. We can't even use the same cache file for all build-side
3169 # libraries, as they're compiled differently; some with C, some with
3170 # C++ or with different feature-enabling options.
3171 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3173 # For host modules, accept cache file option, or specification as blank.
3174 case "${cache_file}" in
3175 "") # empty
3176 cache_file_option="" ;;
3177 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3178 cache_file_option="--cache-file=${cache_file}" ;;
3179 *) # relative path
3180 cache_file_option="--cache-file=../${cache_file}" ;;
3181 esac
3183 # Host dirs don't like to share a cache file either, horribly enough.
3184 # This seems to be due to autoconf 2.5x stupidity.
3185 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3187 target_configargs="$target_configargs ${tbaseargs}"
3189 # Passing a --with-cross-host argument lets the target libraries know
3190 # whether they are being built with a cross-compiler or being built
3191 # native. However, it would be better to use other mechanisms to make the
3192 # sorts of decisions they want to make on this basis. Please consider
3193 # this option to be deprecated. FIXME.
3194 if test x${is_cross_compiler} = xyes ; then
3195 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3196 fi
3198 # Special user-friendly check for native x86_64-linux build, if
3199 # multilib is not explicitly enabled.
3200 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3201 x86_64-*linux*:yes:$build:$build:)
3202 # Make sure we have a development environment that handles 32-bit
3203 dev64=no
3204 echo "int main () { return 0; }" > conftest.c
3205 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3206 if test $? = 0 ; then
3207 if test -s conftest || test -s conftest.exe ; then
3208 dev64=yes
3209 fi
3210 fi
3211 rm -f conftest*
3212 if test x${dev64} != xyes ; then
3213 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.])
3214 fi
3215 ;;
3216 esac
3218 # Default to --enable-multilib.
3219 if test x${enable_multilib} = x ; then
3220 target_configargs="--enable-multilib ${target_configargs}"
3221 fi
3223 # Pass --with-newlib if appropriate. Note that target_configdirs has
3224 # changed from the earlier setting of with_newlib.
3225 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3226 target_configargs="--with-newlib ${target_configargs}"
3227 fi
3229 # Different target subdirs use different values of certain variables
3230 # (notably CXX). Worse, multilibs use *lots* of different values.
3231 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3232 # it doesn't automatically accept command-line overrides of them.
3233 # This means it's not safe for target subdirs to share a cache file,
3234 # which is disgusting, but there you have it. Hopefully this can be
3235 # fixed in future. It's still worthwhile to use a cache file for each
3236 # directory. I think.
3238 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3239 # We need to pass --target, as newer autoconf's requires consistency
3240 # for target_alias and gcc doesn't manage it consistently.
3241 target_configargs="--cache-file=./config.cache ${target_configargs}"
3243 FLAGS_FOR_TARGET=
3244 case " $target_configdirs " in
3245 *" newlib "*)
3246 case " $target_configargs " in
3247 *" --with-newlib "*)
3248 case "$target" in
3249 *-cygwin*)
3250 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3251 ;;
3252 esac
3254 # If we're not building GCC, don't discard standard headers.
3255 if test -d ${srcdir}/gcc; then
3256 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3258 if test "${build}" != "${host}"; then
3259 # On Canadian crosses, CC_FOR_TARGET will have already been set
3260 # by `configure', so we won't have an opportunity to add -Bgcc/
3261 # to it. This is right: we don't want to search that directory
3262 # for binaries, but we want the header files in there, so add
3263 # them explicitly.
3264 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3266 # Someone might think of using the pre-installed headers on
3267 # Canadian crosses, in case the installed compiler is not fully
3268 # compatible with the compiler being built. In this case, it
3269 # would be better to flag an error than risking having
3270 # incompatible object files being constructed. We can't
3271 # guarantee that an error will be flagged, but let's hope the
3272 # compiler will do it, when presented with incompatible header
3273 # files.
3274 fi
3275 fi
3277 case "${target}-${is_cross_compiler}" in
3278 i[[3456789]]86-*-linux*-no)
3279 # Here host == target, so we don't need to build gcc,
3280 # so we don't want to discard standard headers.
3281 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3282 ;;
3283 *)
3284 # If we're building newlib, use its generic headers last, but search
3285 # for any libc-related directories first (so make it the last -B
3286 # switch).
3287 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3289 # If we're building libgloss, find the startup file, simulator library
3290 # and linker script.
3291 case " $target_configdirs " in
3292 *" libgloss "*)
3293 # Look for startup file, simulator library and maybe linker script.
3294 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3295 # Look for libnosys.a in case the target needs it.
3296 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3297 # Most targets have the linker script in the source directory.
3298 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3299 ;;
3300 esac
3301 ;;
3302 esac
3303 ;;
3304 esac
3305 ;;
3306 esac
3308 case "$target" in
3309 x86_64-*mingw* | *-w64-mingw*)
3310 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3311 # however, use a symlink named 'mingw' in ${prefix} .
3312 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3313 ;;
3314 *-mingw*)
3315 # MinGW can't be handled as Cygwin above since it does not use newlib.
3316 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3317 ;;
3318 esac
3320 # Allow the user to override the flags for
3321 # our build compiler if desired.
3322 if test x"${build}" = x"${host}" ; then
3323 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3324 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3325 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3326 fi
3328 # On Canadian crosses, we'll be searching the right directories for
3329 # the previously-installed cross compiler, so don't bother to add
3330 # flags for directories within the install tree of the compiler
3331 # being built; programs in there won't even run.
3332 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3333 # Search for pre-installed headers if nothing else fits.
3334 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3335 fi
3337 if test "x${use_gnu_ld}" = x &&
3338 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3339 # Arrange for us to find uninstalled linker scripts.
3340 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3341 fi
3343 # Search for other target-specific linker scripts and such.
3344 case "${target}" in
3345 mep*)
3346 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3347 ;;
3348 esac
3350 # Makefile fragments.
3351 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3352 do
3353 eval fragval=\$$frag
3354 if test $fragval != /dev/null; then
3355 eval $frag=${srcdir}/$fragval
3356 fi
3357 done
3358 AC_SUBST_FILE(host_makefile_frag)
3359 AC_SUBST_FILE(target_makefile_frag)
3360 AC_SUBST_FILE(alphaieee_frag)
3361 AC_SUBST_FILE(ospace_frag)
3363 # Miscellanea: directories, flags, etc.
3364 AC_SUBST(RPATH_ENVVAR)
3365 AC_SUBST(GCC_SHLIB_SUBDIR)
3366 AC_SUBST(tooldir)
3367 AC_SUBST(build_tooldir)
3368 AC_SUBST(CONFIGURE_GDB_TK)
3369 AC_SUBST(GDB_TK)
3370 AC_SUBST(INSTALL_GDB_TK)
3372 # Build module lists & subconfigure args.
3373 AC_SUBST(build_configargs)
3374 AC_SUBST(build_configdirs)
3376 # Host module lists & subconfigure args.
3377 AC_SUBST(host_configargs)
3378 AC_SUBST(configdirs)
3379 AC_SUBST(target_configdirs)
3381 # Target module lists & subconfigure args.
3382 AC_SUBST(target_configargs)
3385 # Build tools.
3386 AC_SUBST(AR_FOR_BUILD)
3387 AC_SUBST(AS_FOR_BUILD)
3388 AC_SUBST(CC_FOR_BUILD)
3389 AC_SUBST(CFLAGS_FOR_BUILD)
3390 AC_SUBST(CXXFLAGS_FOR_BUILD)
3391 AC_SUBST(CXX_FOR_BUILD)
3392 AC_SUBST(DLLTOOL_FOR_BUILD)
3393 AC_SUBST(GFORTRAN_FOR_BUILD)
3394 AC_SUBST(GOC_FOR_BUILD)
3395 AC_SUBST(GDC_FOR_BUILD)
3396 AC_SUBST(LDFLAGS_FOR_BUILD)
3397 AC_SUBST(LD_FOR_BUILD)
3398 AC_SUBST(NM_FOR_BUILD)
3399 AC_SUBST(RANLIB_FOR_BUILD)
3400 AC_SUBST(WINDMC_FOR_BUILD)
3401 AC_SUBST(WINDRES_FOR_BUILD)
3403 # Generate default definitions for YACC, M4, LEX and other programs that run
3404 # on the build machine. These are used if the Makefile can't locate these
3405 # programs in objdir.
3406 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3408 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3409 case " $build_configdirs " in
3410 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3411 esac
3413 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3414 case " $build_configdirs " in
3415 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3416 esac
3418 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3419 case " $build_configdirs " in
3420 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3421 esac
3423 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3424 case " $build_configdirs " in
3425 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3426 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3427 esac
3429 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3430 case " $build_configdirs " in
3431 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3432 esac
3434 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3435 case " $build_configdirs " in
3436 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3437 *)
3438 changequote(,)
3439 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3440 # higher, else we use the "missing" dummy.
3441 if ${MAKEINFO} --version \
3442 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3443 :
3444 else
3445 MAKEINFO="$MISSING makeinfo"
3446 fi
3447 ;;
3448 changequote([,])
3449 esac
3451 # FIXME: expect and dejagnu may become build tools?
3453 AC_CHECK_PROGS(EXPECT, expect, expect)
3454 case " $configdirs " in
3455 *" expect "*)
3456 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3457 ;;
3458 esac
3460 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3461 case " $configdirs " in
3462 *" dejagnu "*)
3463 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3464 ;;
3465 esac
3468 # Host tools.
3469 NCN_STRICT_CHECK_TOOLS(AR, ar)
3470 NCN_STRICT_CHECK_TOOLS(AS, as)
3471 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3472 NCN_STRICT_CHECK_TOOLS(LD, ld)
3473 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3474 NCN_STRICT_CHECK_TOOLS(NM, nm)
3475 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3476 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3477 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3478 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3479 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3480 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3481 NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
3482 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3483 AC_SUBST(CC)
3484 AC_SUBST(CXX)
3485 AC_SUBST(CFLAGS)
3486 AC_SUBST(CXXFLAGS)
3488 # Target tools.
3489 AC_ARG_WITH([build-time-tools],
3490 [AS_HELP_STRING([--with-build-time-tools=PATH],
3491 [use given path to find target tools during the build])],
3492 [case x"$withval" in
3493 x/*) ;;
3494 *)
3495 with_build_time_tools=
3496 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3497 ;;
3498 esac],
3499 [with_build_time_tools=])
3501 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3502 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3503 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3504 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3505 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3506 NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
3508 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3509 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3510 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3511 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3512 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3513 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3514 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3515 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3516 ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
3517 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3518 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3519 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3520 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3521 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3523 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3525 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3526 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3527 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3528 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3529 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3530 [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],
3531 c++)
3532 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3533 [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],
3534 c++)
3535 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3536 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3537 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3538 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3539 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3540 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3541 GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3542 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
3543 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3544 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3545 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3546 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3547 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3548 GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
3549 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3550 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3551 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3552 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3553 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3555 AC_SUBST(FLAGS_FOR_TARGET)
3556 AC_SUBST(RAW_CXX_FOR_TARGET)
3558 # Certain tools may need extra flags.
3559 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3560 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3561 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3563 # When building target libraries, except in a Canadian cross, we use
3564 # the same toolchain as the compiler we just built.
3565 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3566 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3567 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3568 if test $host = $build; then
3569 case " $configdirs " in
3570 *" gcc "*)
3571 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3572 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3573 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3574 ;;
3575 esac
3576 fi
3578 AC_SUBST(COMPILER_AS_FOR_TARGET)
3579 AC_SUBST(COMPILER_LD_FOR_TARGET)
3580 AC_SUBST(COMPILER_NM_FOR_TARGET)
3582 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3583 AC_ARG_ENABLE(maintainer-mode,
3584 [AS_HELP_STRING([--enable-maintainer-mode],
3585 [enable make rules and dependencies not useful
3586 (and sometimes confusing) to the casual installer])],
3587 USE_MAINTAINER_MODE=$enableval,
3588 USE_MAINTAINER_MODE=no)
3589 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3590 AC_SUBST(MAINTAINER_MODE_TRUE)
3591 AC_SUBST(MAINTAINER_MODE_FALSE)
3592 if test "$USE_MAINTAINER_MODE" = yes; then
3593 MAINTAINER_MODE_TRUE=
3594 MAINTAINER_MODE_FALSE='#'
3595 else
3596 MAINTAINER_MODE_TRUE='#'
3597 MAINTAINER_MODE_FALSE=
3598 fi
3599 MAINT=$MAINTAINER_MODE_TRUE
3600 AC_SUBST(MAINT)dnl
3602 # ---------------------
3603 # GCC bootstrap support
3604 # ---------------------
3606 # Stage specific cflags for build.
3607 stage1_cflags="-g"
3608 case $build in
3609 vax-*-*)
3610 case ${GCC} in
3611 yes) stage1_cflags="-g -Wa,-J" ;;
3612 *) stage1_cflags="-g -J" ;;
3613 esac ;;
3614 esac
3616 AC_SUBST(stage1_cflags)
3618 # Enable --enable-checking in stage1 of the compiler.
3619 AC_ARG_ENABLE(stage1-checking,
3620 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3621 [choose additional checking for stage1 of the compiler])],
3622 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3623 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3624 # For --disable-checking or implicit --enable-checking=release, avoid
3625 # setting --enable-checking=gc in the default stage1 checking for LTO
3626 # bootstraps. See PR62077.
3627 case $BUILD_CONFIG in
3628 *lto*)
3629 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3630 *)
3631 stage1_checking=--enable-checking=yes,types;;
3632 esac
3633 if test "x$enable_checking" = x && \
3634 test -d ${srcdir}/gcc && \
3635 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3636 stage1_checking=--enable-checking=yes,types,extra
3637 fi
3638 else
3639 stage1_checking=--enable-checking=$enable_checking,types
3640 fi])
3641 AC_SUBST(stage1_checking)
3643 # Enable -Werror in bootstrap stage2 and later.
3644 AC_ARG_ENABLE(werror,
3645 [AS_HELP_STRING([--enable-werror],
3646 [enable -Werror in bootstrap stage2 and later])],
3647 [
3648 case ${enable_werror} in
3649 yes) stage2_werror_flag="--enable-werror-always" ;;
3650 *) stage2_werror_flag="" ;;
3651 esac
3652 ],
3653 [
3654 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3655 case $BUILD_CONFIG in
3656 bootstrap-debug)
3657 stage2_werror_flag="--enable-werror-always" ;;
3658 "")
3659 stage2_werror_flag="--enable-werror-always" ;;
3660 esac
3661 fi
3662 ])
3664 AC_SUBST(stage2_werror_flag)
3666 # Specify what files to not compare during bootstrap.
3668 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3669 case "$target" in
3670 hppa*64*-*-hpux*) ;;
3671 hppa*-*-hpux*) compare_exclusions="$compare_exclusions | */libgcc/lib2funcs* | gcc/function-tests.o" ;;
3672 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
3673 esac
3674 AC_SUBST(compare_exclusions)
3676 AC_CONFIG_FILES([Makefile],
3677 [sed "$extrasub_build" Makefile |
3678 sed "$extrasub_host" |
3679 sed "$extrasub_target" > mf$$
3680 mv -f mf$$ Makefile],
3681 [extrasub_build="$extrasub_build"
3682 extrasub_host="$extrasub_host"
3683 extrasub_target="$extrasub_target"])
3684 AC_OUTPUT