| blob | 392389fb2fb8097d08815259455ff2dc58b4daf3 |
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 *-*-darwin*)
728 unsupported_languages="$unsupported_languages d"
729 ;;
730 bpf-*-*)
731 unsupported_languages="$unsupported_languages d"
732 ;;
733 esac
734 ;;
735 esac
737 # Disable libphobos on unsupported systems.
738 # For testing, you can override this with --enable-libphobos.
739 if test -d ${srcdir}/libphobos; then
740 if test x$enable_libphobos = x; then
741 AC_MSG_CHECKING([for libphobos support])
742 if (srcdir=${srcdir}/libphobos; \
743 . ${srcdir}/configure.tgt; \
744 test "$LIBPHOBOS_SUPPORTED" != "yes")
745 then
746 AC_MSG_RESULT([no])
747 noconfigdirs="$noconfigdirs target-libphobos"
748 else
749 AC_MSG_RESULT([yes])
750 fi
751 fi
752 fi
754 # Disable Fortran for some systems.
755 case "${target}" in
756 mmix-*-*)
757 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
758 unsupported_languages="$unsupported_languages fortran"
759 ;;
760 bpf-*-*)
761 unsupported_languages="$unsupported_languages fortran"
762 ;;
763 esac
765 # Disable libffi for some systems.
766 case "${target}" in
767 powerpc-*-darwin*)
768 ;;
769 i[[3456789]]86-*-darwin*)
770 ;;
771 x86_64-*-darwin[[912]]*)
772 ;;
773 *-*-darwin*)
774 noconfigdirs="$noconfigdirs target-libffi"
775 ;;
776 *-*-netware*)
777 noconfigdirs="$noconfigdirs target-libffi"
778 ;;
779 *-*-phoenix*)
780 noconfigdirs="$noconfigdirs target-libffi"
781 ;;
782 *-*-rtems*)
783 noconfigdirs="$noconfigdirs target-libffi"
784 ;;
785 *-*-tpf*)
786 noconfigdirs="$noconfigdirs target-libffi"
787 ;;
788 *-*-uclinux*)
789 noconfigdirs="$noconfigdirs target-libffi"
790 ;;
791 *-*-vxworks*)
792 noconfigdirs="$noconfigdirs target-libffi"
793 ;;
794 aarch64*-*-freebsd*)
795 noconfigdirs="$noconfigdirs target-libffi"
796 ;;
797 alpha*-*-*vms*)
798 noconfigdirs="$noconfigdirs target-libffi"
799 ;;
800 arm*-*-freebsd*)
801 noconfigdirs="$noconfigdirs target-libffi"
802 ;;
803 arm-wince-pe)
804 noconfigdirs="$noconfigdirs target-libffi"
805 ;;
806 arm*-*-symbianelf*)
807 noconfigdirs="$noconfigdirs target-libffi"
808 ;;
809 bpf-*-*)
810 noconfigdirs="$noconfigdirs target-libffi"
811 ;;
812 cris-*-* | crisv32-*-*)
813 case "${target}" in
814 *-*-linux*)
815 ;;
816 *) # See PR46792 regarding target-libffi.
817 noconfigdirs="$noconfigdirs target-libffi";;
818 esac
819 ;;
820 hppa*64*-*-hpux*)
821 noconfigdirs="$noconfigdirs target-libffi"
822 ;;
823 hppa*-hp-hpux11*)
824 ;;
825 hppa*-*-hpux*)
826 noconfigdirs="$noconfigdirs target-libffi"
827 ;;
828 ia64*-*-*vms*)
829 noconfigdirs="$noconfigdirs target-libffi"
830 ;;
831 i[[3456789]]86-w64-mingw*)
832 noconfigdirs="$noconfigdirs target-libffi"
833 ;;
834 i[[3456789]]86-*-mingw*)
835 noconfigdirs="$noconfigdirs target-libffi"
836 ;;
837 x86_64-*-mingw*)
838 noconfigdirs="$noconfigdirs target-libffi"
839 ;;
840 mmix-*-*)
841 noconfigdirs="$noconfigdirs target-libffi"
842 ;;
843 powerpc-*-aix*)
844 ;;
845 rs6000-*-aix*)
846 ;;
847 ft32-*-*)
848 noconfigdirs="$noconfigdirs target-libffi"
849 ;;
850 *-*-lynxos*)
851 noconfigdirs="$noconfigdirs target-libffi"
852 ;;
853 esac
855 # Disable the go frontend on systems where it is known to not work. Please keep
856 # this in sync with contrib/config-list.mk.
857 case "${target}" in
858 *-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
859 unsupported_languages="$unsupported_languages go"
860 ;;
861 esac
863 # Only allow gdbserver on some systems.
864 if test -d ${srcdir}/gdbserver; then
865 if test x$enable_gdbserver = x; then
866 AC_MSG_CHECKING([for gdbserver support])
867 if (srcdir=${srcdir}/gdbserver; \
868 . ${srcdir}/configure.srv; \
869 test -n "$UNSUPPORTED")
870 then
871 AC_MSG_RESULT([no])
872 noconfigdirs="$noconfigdirs gdbserver"
873 else
874 AC_MSG_RESULT([yes])
875 fi
876 fi
877 fi
879 # Disable libgo for some systems where it is known to not work.
880 # For testing, you can easily override this with --enable-libgo.
881 if test x$enable_libgo = x; then
882 case "${target}" in
883 *-*-darwin*)
884 # PR 46986
885 noconfigdirs="$noconfigdirs target-libgo"
886 ;;
887 *-*-cygwin* | *-*-mingw*)
888 noconfigdirs="$noconfigdirs target-libgo"
889 ;;
890 bpf-*-*)
891 noconfigdirs="$noconfigdirs target-libgo"
892 ;;
893 esac
894 fi
896 # Default libgloss CPU subdirectory.
897 libgloss_dir="$target_cpu"
899 case "${target}" in
900 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
901 libgloss_dir=wince
902 ;;
903 aarch64*-*-* )
904 libgloss_dir=aarch64
905 ;;
906 arm*-*-*)
907 libgloss_dir=arm
908 ;;
909 cris-*-* | crisv32-*-*)
910 libgloss_dir=cris
911 ;;
912 hppa*-*-*)
913 libgloss_dir=pa
914 ;;
915 i[[3456789]]86-*-*)
916 libgloss_dir=i386
917 ;;
918 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
919 libgloss_dir=m68hc11
920 ;;
921 m68*-*-* | fido-*-*)
922 libgloss_dir=m68k
923 ;;
924 mips*-*-*)
925 libgloss_dir=mips
926 ;;
927 powerpc*-*-*)
928 libgloss_dir=rs6000
929 ;;
930 pru-*-*)
931 libgloss_dir=pru
932 ;;
933 sparc*-*-*)
934 libgloss_dir=sparc
935 ;;
936 esac
938 # Disable newlib and libgloss for various target OSes.
939 case "${target}" in
940 alpha*-dec-osf*)
941 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
942 ;;
943 i[[3456789]]86-*-linux*)
944 # This section makes it possible to build newlib natively on linux.
945 # If we are using a cross compiler then don't configure newlib.
946 if test x${is_cross_compiler} != xno ; then
947 noconfigdirs="$noconfigdirs target-newlib"
948 fi
949 noconfigdirs="$noconfigdirs target-libgloss"
950 # If we are not using a cross compiler, do configure newlib.
951 # Note however, that newlib will only be configured in this situation
952 # if the --with-newlib option has been given, because otherwise
953 # 'target-newlib' will appear in skipdirs.
954 ;;
955 i[[3456789]]86-*-rdos*)
956 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
957 ;;
958 sh*-*-pe|mips*-*-pe|arm-wince-pe)
959 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
960 ;;
961 sparc-*-sunos4*)
962 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
963 ;;
964 bpf-*-*)
965 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
966 ;;
967 *-*-aix*)
968 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
969 ;;
970 *-*-beos*)
971 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
972 ;;
973 *-*-chorusos)
974 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
975 ;;
976 *-*-dragonfly*)
977 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
978 ;;
979 *-*-freebsd*)
980 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
981 ;;
982 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
983 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
984 ;;
985 *-*-lynxos*)
986 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
987 ;;
988 *-*-mingw*)
989 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
990 ;;
991 *-*-netbsd*)
992 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
993 ;;
994 *-*-netware*)
995 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
996 ;;
997 *-*-tpf*)
998 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
999 ;;
1000 *-*-uclinux*)
1001 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1002 ;;
1003 *-*-vxworks*)
1004 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1005 ;;
1006 esac
1008 case "${target}" in
1009 *-*-chorusos)
1010 ;;
1011 aarch64-*-darwin*)
1012 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1013 noconfigdirs="$noconfigdirs sim target-rda"
1014 ;;
1015 amdgcn*-*-*)
1016 ;;
1017 arm-*-darwin*)
1018 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1019 noconfigdirs="$noconfigdirs sim target-rda"
1020 ;;
1021 powerpc-*-darwin*)
1022 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1023 noconfigdirs="$noconfigdirs sim target-rda"
1024 ;;
1025 i[[3456789]]86-*-darwin*)
1026 noconfigdirs="$noconfigdirs ld gprof"
1027 noconfigdirs="$noconfigdirs sim target-rda"
1028 ;;
1029 x86_64-*-darwin[[912]]*)
1030 noconfigdirs="$noconfigdirs ld gas gprof"
1031 noconfigdirs="$noconfigdirs sim target-rda"
1032 ;;
1033 *-*-darwin*)
1034 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1035 noconfigdirs="$noconfigdirs sim target-rda"
1036 ;;
1037 *-*-dragonfly*)
1038 ;;
1039 *-*-freebsd*)
1040 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
1041 && test -f /usr/local/include/gmp.h; then
1042 with_gmp=/usr/local
1043 fi
1044 ;;
1045 *-*-kaos*)
1046 # Remove unsupported stuff on all kaOS configurations.
1047 noconfigdirs="$noconfigdirs target-libgloss"
1048 ;;
1049 *-*-netbsd*)
1050 ;;
1051 *-*-netware*)
1052 ;;
1053 *-*-phoenix*)
1054 noconfigdirs="$noconfigdirs target-libgloss"
1055 ;;
1056 *-*-rtems*)
1057 noconfigdirs="$noconfigdirs target-libgloss"
1058 ;;
1059 # The tpf target doesn't support gdb yet.
1060 *-*-tpf*)
1061 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
1062 ;;
1063 *-*-uclinux*)
1064 noconfigdirs="$noconfigdirs target-rda"
1065 ;;
1066 *-*-vxworks*)
1067 ;;
1068 alpha*-dec-osf*)
1069 # ld works, but does not support shared libraries.
1070 # gas doesn't generate exception information.
1071 noconfigdirs="$noconfigdirs gas ld"
1072 ;;
1073 alpha*-*-*vms*)
1074 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1075 ;;
1076 alpha*-*-*)
1077 # newlib is not 64 bit ready
1078 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1079 ;;
1080 bpf-*-*)
1081 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1082 ;;
1083 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1084 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1085 ;;
1086 arc*-*-*)
1087 noconfigdirs="$noconfigdirs sim"
1088 ;;
1089 arm-*-pe*)
1090 noconfigdirs="$noconfigdirs target-libgloss"
1091 ;;
1092 arm-*-riscix*)
1093 noconfigdirs="$noconfigdirs ld target-libgloss"
1094 ;;
1095 avr-*-*)
1096 if test x${with_avrlibc} != xno; then
1097 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1098 fi
1099 ;;
1100 c4x-*-* | tic4x-*-*)
1101 noconfigdirs="$noconfigdirs target-libgloss"
1102 ;;
1103 tic54x-*-*)
1104 noconfigdirs="$noconfigdirs target-libgloss gdb"
1105 ;;
1106 d10v-*-*)
1107 noconfigdirs="$noconfigdirs target-libgloss"
1108 ;;
1109 d30v-*-*)
1110 noconfigdirs="$noconfigdirs gdb"
1111 ;;
1112 fr30-*-elf*)
1113 noconfigdirs="$noconfigdirs gdb"
1114 ;;
1115 ft32-*-*)
1116 noconfigdirs="$noconfigdirs target-rda gprof"
1117 ;;
1118 moxie-*-*)
1119 noconfigdirs="$noconfigdirs"
1120 ;;
1121 h8300*-*-*)
1122 noconfigdirs="$noconfigdirs target-libgloss"
1123 ;;
1124 h8500-*-*)
1125 noconfigdirs="$noconfigdirs target-libgloss"
1126 ;;
1127 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1128 ;;
1129 hppa*64*-*-hpux*)
1130 noconfigdirs="$noconfigdirs gdb"
1131 ;;
1132 hppa*-*-hpux11*)
1133 noconfigdirs="$noconfigdirs gdb ld"
1134 ;;
1135 hppa*64*-*-linux*)
1136 ;;
1137 hppa*-*-linux*)
1138 ;;
1139 hppa*-*-*elf* | \
1140 hppa*-*-lites* | \
1141 hppa*-*-openbsd* | \
1142 hppa*64*-*-*)
1143 ;;
1144 hppa*-*-pro*)
1145 ;;
1146 hppa*-*-*)
1147 noconfigdirs="$noconfigdirs ld"
1148 ;;
1149 i960-*-*)
1150 noconfigdirs="$noconfigdirs gdb"
1151 ;;
1152 ia64*-*-elf*)
1153 # No gdb support yet.
1154 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1155 ;;
1156 ia64*-**-hpux*)
1157 # No ld support yet.
1158 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1159 ;;
1160 ia64*-*-*vms*)
1161 # No ld support yet.
1162 noconfigdirs="$noconfigdirs libgui itcl ld"
1163 ;;
1164 i[[3456789]]86-w64-mingw*)
1165 ;;
1166 i[[3456789]]86-*-mingw*)
1167 target_configdirs="$target_configdirs target-winsup"
1168 ;;
1169 *-*-cygwin*)
1170 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1171 noconfigdirs="$noconfigdirs target-libgloss"
1172 # always build newlib if winsup directory is present.
1173 if test -d "$srcdir/winsup/cygwin"; then
1174 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1175 elif test -d "$srcdir/newlib"; then
1176 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1177 fi
1178 ;;
1179 i[[3456789]]86-*-pe)
1180 noconfigdirs="$noconfigdirs target-libgloss"
1181 ;;
1182 i[[3456789]]86-*-sco3.2v5*)
1183 # The linker does not yet know about weak symbols in COFF,
1184 # and is not configured to handle mixed ELF and COFF.
1185 noconfigdirs="$noconfigdirs ld target-libgloss"
1186 ;;
1187 i[[3456789]]86-*-sco*)
1188 noconfigdirs="$noconfigdirs gprof target-libgloss"
1189 ;;
1190 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1191 noconfigdirs="$noconfigdirs target-libgloss"
1192 ;;
1193 i[[3456789]]86-*-sysv4*)
1194 noconfigdirs="$noconfigdirs target-libgloss"
1195 ;;
1196 i[[3456789]]86-*-beos*)
1197 noconfigdirs="$noconfigdirs gdb"
1198 ;;
1199 i[[3456789]]86-*-rdos*)
1200 noconfigdirs="$noconfigdirs gdb"
1201 ;;
1202 mmix-*-*)
1203 noconfigdirs="$noconfigdirs gdb"
1204 ;;
1205 mt-*-*)
1206 noconfigdirs="$noconfigdirs sim"
1207 ;;
1208 nfp-*-*)
1209 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1210 noconfigdirs="$noconfigdirs $target_libraries"
1211 ;;
1212 pdp11-*-*)
1213 noconfigdirs="$noconfigdirs gdb gprof"
1214 ;;
1215 powerpc-*-aix*)
1216 # copied from rs6000-*-* entry
1217 noconfigdirs="$noconfigdirs gprof"
1218 ;;
1219 powerpc*-*-winnt* | powerpc*-*-pe*)
1220 target_configdirs="$target_configdirs target-winsup"
1221 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1222 # always build newlib.
1223 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1224 ;;
1225 # This is temporary until we can link against shared libraries
1226 powerpcle-*-solaris*)
1227 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1228 ;;
1229 powerpc-*-beos*)
1230 noconfigdirs="$noconfigdirs gdb"
1231 ;;
1232 rs6000-*-lynxos*)
1233 noconfigdirs="$noconfigdirs gprof"
1234 ;;
1235 rs6000-*-aix*)
1236 noconfigdirs="$noconfigdirs gprof"
1237 ;;
1238 rs6000-*-*)
1239 noconfigdirs="$noconfigdirs gprof"
1240 ;;
1241 m68k-apollo-*)
1242 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1243 ;;
1244 microblaze*)
1245 noconfigdirs="$noconfigdirs gprof"
1246 ;;
1247 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1248 if test x$with_newlib = xyes; then
1249 noconfigdirs="$noconfigdirs gprof"
1250 fi
1251 ;;
1252 mips*-*-irix5*)
1253 noconfigdirs="$noconfigdirs gprof target-libgloss"
1254 ;;
1255 mips*-*-irix6*)
1256 noconfigdirs="$noconfigdirs gprof target-libgloss"
1257 ;;
1258 mips*-*-bsd*)
1259 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1260 ;;
1261 mips*-*-linux*)
1262 ;;
1263 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1264 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1265 noconfigdirs="$noconfigdirs ld gas gprof"
1266 ;;
1267 mips*-*-*)
1268 noconfigdirs="$noconfigdirs gprof"
1269 ;;
1270 nvptx*-*-*)
1271 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1272 ;;
1273 sh-*-*)
1274 case "${target}" in
1275 sh*-*-elf)
1276 ;;
1277 *)
1278 noconfigdirs="$noconfigdirs target-libgloss" ;;
1279 esac
1280 ;;
1281 sparc-*-sunos4*)
1282 if test x${is_cross_compiler} = xno ; then
1283 use_gnu_ld=no
1284 fi
1285 ;;
1286 tic6x-*-*)
1287 noconfigdirs="$noconfigdirs sim"
1288 ;;
1289 tilepro*-*-* | tilegx*-*-*)
1290 noconfigdirs="$noconfigdirs sim"
1291 ;;
1292 v810-*-*)
1293 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1294 ;;
1295 vax-*-*)
1296 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1297 ;;
1298 wasm32-*-*)
1299 noconfigdirs="$noconfigdirs ld"
1300 ;;
1301 esac
1303 # If we aren't building newlib, then don't build libgloss, since libgloss
1304 # depends upon some newlib header files.
1305 case "${noconfigdirs}" in
1306 *target-libgloss*) ;;
1307 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1308 esac
1310 # Work in distributions that contain no compiler tools, like Autoconf.
1311 host_makefile_frag=/dev/null
1312 if test -d ${srcdir}/config ; then
1313 case "${host}" in
1314 i[[3456789]]86-*-msdosdjgpp*)
1315 host_makefile_frag="config/mh-djgpp"
1316 ;;
1317 *-cygwin*)
1318 ACX_CHECK_CYGWIN_CAT_WORKS
1319 host_makefile_frag="config/mh-cygwin"
1320 ;;
1321 *-mingw*)
1322 host_makefile_frag="config/mh-mingw"
1323 ;;
1324 alpha*-linux*)
1325 host_makefile_frag="config/mh-alpha-linux"
1326 ;;
1327 hppa*-hp-hpux10*)
1328 host_makefile_frag="config/mh-pa-hpux10"
1329 ;;
1330 hppa*-hp-hpux*)
1331 host_makefile_frag="config/mh-pa"
1332 ;;
1333 hppa*-*)
1334 host_makefile_frag="config/mh-pa"
1335 ;;
1336 *-*-darwin*)
1337 host_makefile_frag="config/mh-darwin"
1338 ;;
1339 powerpc-*-aix*)
1340 host_makefile_frag="config/mh-ppc-aix"
1341 ;;
1342 rs6000-*-aix*)
1343 host_makefile_frag="config/mh-ppc-aix"
1344 ;;
1345 esac
1346 fi
1348 if test "${build}" != "${host}" ; then
1349 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1350 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1351 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1352 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1353 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1354 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1355 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
1356 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1357 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1358 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1359 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1360 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1361 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1362 else
1363 AR_FOR_BUILD="\$(AR)"
1364 AS_FOR_BUILD="\$(AS)"
1365 CC_FOR_BUILD="\$(CC)"
1366 CXX_FOR_BUILD="\$(CXX)"
1367 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1368 GOC_FOR_BUILD="\$(GOC)"
1369 GDC_FOR_BUILD="\$(GDC)"
1370 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1371 LD_FOR_BUILD="\$(LD)"
1372 NM_FOR_BUILD="\$(NM)"
1373 RANLIB_FOR_BUILD="\$(RANLIB)"
1374 WINDRES_FOR_BUILD="\$(WINDRES)"
1375 WINDMC_FOR_BUILD="\$(WINDMC)"
1376 fi
1378 AC_PROG_CC
1379 AC_PROG_CXX
1381 # We must set the default linker to the linker used by gcc for the correct
1382 # operation of libtool. If LD is not defined and we are using gcc, try to
1383 # set the LD default to the ld used by gcc.
1384 if test -z "$LD"; then
1385 if test "$GCC" = yes; then
1386 case $build in
1387 *-*-mingw*)
1388 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1389 *)
1390 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1391 esac
1392 case $gcc_prog_ld in
1393 # Accept absolute paths.
1394 [[\\/]* | [A-Za-z]:[\\/]*)]
1395 LD="$gcc_prog_ld" ;;
1396 esac
1397 fi
1398 fi
1400 # Check whether -static-libstdc++ -static-libgcc is supported.
1401 have_static_libs=no
1402 if test "$GCC" = yes; then
1403 saved_LDFLAGS="$LDFLAGS"
1405 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1406 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1407 AC_LANG_PUSH(C++)
1408 AC_LINK_IFELSE([AC_LANG_SOURCE([
1409 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1410 #error -static-libstdc++ not implemented
1411 #endif
1412 int main() {}])],
1413 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1414 [AC_MSG_RESULT([no])])
1415 AC_LANG_POP(C++)
1417 LDFLAGS="$saved_LDFLAGS"
1418 fi
1420 ACX_PROG_GNAT
1421 ACX_PROG_CMP_IGNORE_INITIAL
1423 AC_ARG_ENABLE([bootstrap],
1424 [AS_HELP_STRING([--enable-bootstrap],
1425 [enable bootstrapping @<:@yes if native build@:>@])],,
1426 enable_bootstrap=default)
1428 # Issue errors and warnings for invalid/strange bootstrap combinations.
1429 if test -r $srcdir/gcc/configure; then
1430 have_compiler=yes
1431 else
1432 have_compiler=no
1433 fi
1435 case "$have_compiler:$host:$target:$enable_bootstrap" in
1436 *:*:*:no) ;;
1438 # Default behavior. Enable bootstrap if we have a compiler
1439 # and we are in a native configuration.
1440 yes:$build:$build:default)
1441 enable_bootstrap=yes ;;
1443 *:*:*:default)
1444 enable_bootstrap=no ;;
1446 # We have a compiler and we are in a native configuration, bootstrap is ok
1447 yes:$build:$build:yes)
1448 ;;
1450 # Other configurations, but we have a compiler. Assume the user knows
1451 # what he's doing.
1452 yes:*:*:yes)
1453 AC_MSG_WARN([trying to bootstrap a cross compiler])
1454 ;;
1456 # No compiler: if they passed --enable-bootstrap explicitly, fail
1457 no:*:*:yes)
1458 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1460 # Fail if wrong command line
1461 *)
1462 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1463 ;;
1464 esac
1466 # When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
1467 # C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1468 # require C++11 (or higher).
1469 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1470 CXX="$CXX -std=c++11"
1471 elif test "$have_compiler" = yes; then
1472 AX_CXX_COMPILE_STDCXX(11)
1474 if test "${build}" != "${host}"; then
1475 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1476 fi
1477 fi
1479 # Used for setting $lt_cv_objdir
1480 _LT_CHECK_OBJDIR
1482 # Check for GMP, MPFR and MPC
1483 gmplibs="-lmpc -lmpfr -lgmp"
1484 gmpinc=
1485 have_gmp=no
1487 # Specify a location for mpc
1488 # check for this first so it ends up on the link line before mpfr.
1489 AC_ARG_WITH(mpc,
1490 [AS_HELP_STRING([--with-mpc=PATH],
1491 [specify prefix directory for installed MPC package.
1492 Equivalent to --with-mpc-include=PATH/include
1493 plus --with-mpc-lib=PATH/lib])])
1494 AC_ARG_WITH(mpc-include,
1495 [AS_HELP_STRING([--with-mpc-include=PATH],
1496 [specify directory for installed MPC include files])])
1497 AC_ARG_WITH(mpc-lib,
1498 [AS_HELP_STRING([--with-mpc-lib=PATH],
1499 [specify directory for the installed MPC library])])
1501 if test "x$with_mpc" != x; then
1502 gmplibs="-L$with_mpc/lib $gmplibs"
1503 gmpinc="-I$with_mpc/include $gmpinc"
1504 fi
1505 if test "x$with_mpc_include" != x; then
1506 gmpinc="-I$with_mpc_include $gmpinc"
1507 fi
1508 if test "x$with_mpc_lib" != x; then
1509 gmplibs="-L$with_mpc_lib $gmplibs"
1510 fi
1511 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1512 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1513 gmpinc='-I$$s/mpc/src '"$gmpinc"
1514 # Do not test the mpc version. Assume that it is sufficient, since
1515 # it is in the source tree, and the library has not been built yet
1516 # but it would be included on the link line in the version check below
1517 # hence making the test fail.
1518 have_gmp=yes
1519 fi
1521 # Specify a location for mpfr
1522 # check for this first so it ends up on the link line before gmp.
1523 AC_ARG_WITH(mpfr-dir,
1524 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1525 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1526 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1528 AC_ARG_WITH(mpfr,
1529 [AS_HELP_STRING([--with-mpfr=PATH],
1530 [specify prefix directory for installed MPFR package.
1531 Equivalent to --with-mpfr-include=PATH/include
1532 plus --with-mpfr-lib=PATH/lib])])
1533 AC_ARG_WITH(mpfr-include,
1534 [AS_HELP_STRING([--with-mpfr-include=PATH],
1535 [specify directory for installed MPFR include files])])
1536 AC_ARG_WITH(mpfr-lib,
1537 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1538 [specify directory for the installed MPFR library])])
1540 if test "x$with_mpfr" != x; then
1541 gmplibs="-L$with_mpfr/lib $gmplibs"
1542 gmpinc="-I$with_mpfr/include $gmpinc"
1543 fi
1544 if test "x$with_mpfr_include" != x; then
1545 gmpinc="-I$with_mpfr_include $gmpinc"
1546 fi
1547 if test "x$with_mpfr_lib" != x; then
1548 gmplibs="-L$with_mpfr_lib $gmplibs"
1549 fi
1550 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1551 # MPFR v3.1.0 moved the sources into a src sub-directory.
1552 if ! test -d ${srcdir}/mpfr/src; then
1553 AC_MSG_ERROR([dnl
1554 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1555 fi
1556 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1557 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1558 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1559 # Do not test the mpfr version. Assume that it is sufficient, since
1560 # it is in the source tree, and the library has not been built yet
1561 # but it would be included on the link line in the version check below
1562 # hence making the test fail.
1563 have_gmp=yes
1564 fi
1566 # Specify a location for gmp
1567 AC_ARG_WITH(gmp-dir,
1568 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1569 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1570 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1572 AC_ARG_WITH(gmp,
1573 [AS_HELP_STRING([--with-gmp=PATH],
1574 [specify prefix directory for the installed GMP package.
1575 Equivalent to --with-gmp-include=PATH/include
1576 plus --with-gmp-lib=PATH/lib])])
1577 AC_ARG_WITH(gmp-include,
1578 [AS_HELP_STRING([--with-gmp-include=PATH],
1579 [specify directory for installed GMP include files])])
1580 AC_ARG_WITH(gmp-lib,
1581 [AS_HELP_STRING([--with-gmp-lib=PATH],
1582 [specify directory for the installed GMP library])])
1585 if test "x$with_gmp" != x; then
1586 gmplibs="-L$with_gmp/lib $gmplibs"
1587 gmpinc="-I$with_gmp/include $gmpinc"
1588 fi
1589 if test "x$with_gmp_include" != x; then
1590 gmpinc="-I$with_gmp_include $gmpinc"
1591 fi
1592 if test "x$with_gmp_lib" != x; then
1593 gmplibs="-L$with_gmp_lib $gmplibs"
1594 fi
1595 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1596 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1597 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1598 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1599 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1600 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1601 # Do not test the gmp version. Assume that it is sufficient, since
1602 # it is in the source tree, and the library has not been built yet
1603 # but it would be included on the link line in the version check below
1604 # hence making the test fail.
1605 have_gmp=yes
1606 fi
1608 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1609 have_gmp=yes
1610 saved_CFLAGS="$CFLAGS"
1611 CFLAGS="$CFLAGS $gmpinc"
1612 # Check for the recommended and required versions of GMP.
1613 AC_MSG_CHECKING([for the correct version of gmp.h])
1614 AC_TRY_COMPILE([#include "gmp.h"],[
1615 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1616 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1617 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1618 choke me
1619 #endif
1620 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1621 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1622 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1623 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1624 choke me
1625 #endif
1626 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1627 [AC_MSG_RESULT([no]); have_gmp=no])
1629 # If we have GMP, check the MPFR version.
1630 if test x"$have_gmp" = xyes; then
1631 # Check for the recommended and required versions of MPFR.
1632 AC_MSG_CHECKING([for the correct version of mpfr.h])
1633 AC_TRY_COMPILE([#include <gmp.h>
1634 #include <mpfr.h>],[
1635 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
1636 choke me
1637 #endif
1638 ], [AC_TRY_COMPILE([#include <gmp.h>
1639 #include <mpfr.h>],[
1640 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
1641 choke me
1642 #endif
1643 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1644 [AC_MSG_RESULT([no]); have_gmp=no])
1645 fi
1647 # Check for the MPC header version.
1648 if test x"$have_gmp" = xyes ; then
1649 # Check for the recommended and required versions of MPC.
1650 AC_MSG_CHECKING([for the correct version of mpc.h])
1651 AC_TRY_COMPILE([#include <mpc.h>],[
1652 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1653 choke me
1654 #endif
1655 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1656 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1657 choke me
1658 #endif
1659 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1660 [AC_MSG_RESULT([no]); have_gmp=no])
1661 fi
1663 # Now check the MPFR library.
1664 if test x"$have_gmp" = xyes; then
1665 saved_LIBS="$LIBS"
1666 LIBS="$LIBS $gmplibs"
1667 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1668 AC_TRY_LINK([#include <mpc.h>],[
1669 mpfr_t n;
1670 mpfr_t x;
1671 mpc_t c;
1672 int t;
1673 mpfr_init (n);
1674 mpfr_init (x);
1675 mpfr_atan2 (n, n, x, MPFR_RNDN);
1676 mpfr_erfc (n, x, MPFR_RNDN);
1677 mpfr_subnormalize (x, t, MPFR_RNDN);
1678 mpfr_clear(n);
1679 mpfr_clear(x);
1680 mpc_init2 (c, 53);
1681 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1682 mpc_cosh (c, c, MPC_RNDNN);
1683 mpc_pow (c, c, c, MPC_RNDNN);
1684 mpc_acosh (c, c, MPC_RNDNN);
1685 mpc_clear (c);
1686 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1687 LIBS="$saved_LIBS"
1688 fi
1690 CFLAGS="$saved_CFLAGS"
1692 # The library versions listed in the error message below should match
1693 # the HARD-minimums enforced above.
1694 if test x$have_gmp != xyes; then
1695 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
1696 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1697 their locations. Source code for these libraries can be found at
1698 their respective hosting sites as well as at
1699 https://gcc.gnu.org/pub/gcc/infrastructure/. See also
1700 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1701 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1702 make sure that you have installed both the libraries and the header
1703 files. They may be located in separate packages.])
1704 fi
1705 fi
1707 # Flags needed for both GMP, MPFR and/or MPC.
1708 AC_SUBST(gmplibs)
1709 AC_SUBST(gmpinc)
1710 AC_SUBST(extra_mpfr_configure_flags)
1711 AC_SUBST(extra_mpc_gmp_configure_flags)
1712 AC_SUBST(extra_mpc_mpfr_configure_flags)
1713 AC_SUBST(extra_isl_gmp_configure_flags)
1715 # Libraries to use for stage1 or when not bootstrapping.
1716 AC_ARG_WITH(stage1-libs,
1717 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1718 [if test "$withval" = "no" -o "$withval" = "yes"; then
1719 stage1_libs=
1720 else
1721 stage1_libs=$withval
1722 fi],
1723 [stage1_libs=])
1724 AC_SUBST(stage1_libs)
1726 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1727 # default is yes if gcc is being built; no otherwise. The reason for
1728 # this default is that gdb is sometimes linked against GNU Source
1729 # Highlight, which is a shared library that uses C++ exceptions. In
1730 # this case, -static-libstdc++ will cause crashes.
1731 AC_ARG_WITH(static-standard-libraries,
1732 [AS_HELP_STRING([--with-static-standard-libraries],
1733 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1734 [], [with_static_standard_libraries=auto])
1735 if test "$with_static_standard_libraries" = auto; then
1736 with_static_standard_libraries=$have_compiler
1737 fi
1739 # Linker flags to use for stage1 or when not bootstrapping.
1740 AC_ARG_WITH(stage1-ldflags,
1741 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1742 [if test "$withval" = "no" -o "$withval" = "yes"; then
1743 stage1_ldflags=
1744 else
1745 stage1_ldflags=$withval
1746 fi],
1747 [stage1_ldflags=
1748 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1749 # if supported. But if the user explicitly specified the libraries to use,
1750 # trust that they are doing what they want.
1751 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1752 -a "$have_static_libs" = yes; then
1753 stage1_ldflags="-static-libstdc++ -static-libgcc"
1754 fi])
1755 AC_SUBST(stage1_ldflags)
1757 # Libraries to use for stage2 and later builds.
1758 AC_ARG_WITH(boot-libs,
1759 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1760 [if test "$withval" = "no" -o "$withval" = "yes"; then
1761 poststage1_libs=
1762 else
1763 poststage1_libs=$withval
1764 fi],
1765 [poststage1_libs=])
1766 AC_SUBST(poststage1_libs)
1768 # Linker flags to use for stage2 and later builds.
1769 AC_ARG_WITH(boot-ldflags,
1770 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1771 [linker flags for stage2 and later])],
1772 [if test "$withval" = "no" -o "$withval" = "yes"; then
1773 poststage1_ldflags=
1774 else
1775 poststage1_ldflags=$withval
1776 fi],
1777 [poststage1_ldflags=
1778 # In stages 2 and 3, default to linking libstdc++ and libgcc
1779 # statically. But if the user explicitly specified the libraries to
1780 # use, trust that they are doing what they want.
1781 if test "$poststage1_libs" = ""; then
1782 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1783 fi])
1784 AC_SUBST(poststage1_ldflags)
1786 # GCC GRAPHITE dependency isl.
1787 # Basic setup is inlined here, actual checks are in config/isl.m4
1789 AC_ARG_WITH(isl,
1790 [AS_HELP_STRING(
1791 [--with-isl=PATH],
1792 [Specify prefix directory for the installed isl package.
1793 Equivalent to --with-isl-include=PATH/include
1794 plus --with-isl-lib=PATH/lib])])
1796 # Treat --without-isl as a request to disable
1797 # GRAPHITE support and skip all following checks.
1798 if test "x$with_isl" != "xno"; then
1799 # Check for isl
1800 dnl Provide configure switches and initialize islinc & isllibs
1801 dnl with user input.
1802 ISL_INIT_FLAGS
1803 dnl The versions of isl that work for Graphite
1804 ISL_CHECK_VERSION()
1805 dnl Only execute fail-action, if isl has been requested.
1806 ISL_IF_FAILED([
1807 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1808 fi
1810 # If the isl check failed, disable builds of in-tree variant of isl
1811 if test "x$with_isl" = xno ||
1812 test "x$gcc_cv_isl" = xno; then
1813 noconfigdirs="$noconfigdirs isl"
1814 islinc=
1815 fi
1817 AC_SUBST(isllibs)
1818 AC_SUBST(islinc)
1820 # Check for LTO support.
1821 AC_ARG_ENABLE(lto,
1822 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1823 enable_lto=$enableval,
1824 enable_lto=yes; default_enable_lto=yes)
1826 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1827 build_lto_plugin=yes
1828 ],[if test x"$default_enable_lto" = x"yes" ; then
1829 case $target in
1830 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1831 # On other non-ELF platforms, LTO has yet to be validated.
1832 *) enable_lto=no ;;
1833 esac
1834 else
1835 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1836 # It would also be nice to check the binutils support, but we don't
1837 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1838 # warn during gcc/ subconfigure; unless you're bootstrapping with
1839 # -flto it won't be needed until after installation anyway.
1840 case $target in
1841 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1842 *) if test x"$enable_lto" = x"yes"; then
1843 AC_MSG_ERROR([LTO support is not enabled for this target.])
1844 fi
1845 ;;
1846 esac
1847 fi
1848 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1849 # Build it unless LTO was explicitly disabled.
1850 case $target in
1851 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1852 *) ;;
1853 esac
1854 ])
1856 AC_ARG_ENABLE(linker-plugin-configure-flags,
1857 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1858 [additional flags for configuring linker plugins @<:@none@:>@])],
1859 extra_linker_plugin_configure_flags=$enableval,
1860 extra_linker_plugin_configure_flags=)
1861 AC_SUBST(extra_linker_plugin_configure_flags)
1862 AC_ARG_ENABLE(linker-plugin-flags,
1863 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1864 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1865 extra_linker_plugin_flags=$enableval,
1866 extra_linker_plugin_flags=)
1867 AC_SUBST(extra_linker_plugin_flags)
1869 # Enable --enable-host-shared.
1870 # Checked early to determine whether jit is an 'all' language
1871 AC_ARG_ENABLE(host-shared,
1872 [AS_HELP_STRING([--enable-host-shared],
1873 [build host code as shared libraries])],
1874 [host_shared=$enableval], [host_shared=no])
1875 AC_SUBST(host_shared)
1877 # By default, C and C++ are the only stage 1 languages.
1878 stage1_languages=,c,
1880 # Target libraries that we bootstrap.
1881 bootstrap_target_libs=,target-libgcc,
1883 # Figure out what language subdirectories are present.
1884 # Look if the user specified --enable-languages="..."; if not, use
1885 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1886 # go away some day.
1887 # NB: embedded tabs in this IF block -- do not untabify
1888 if test -d ${srcdir}/gcc; then
1889 if test x"${enable_languages+set}" != xset; then
1890 if test x"${LANGUAGES+set}" = xset; then
1891 enable_languages="${LANGUAGES}"
1892 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1893 else
1894 enable_languages=default
1895 fi
1896 else
1897 if test x"${enable_languages}" = x ||
1898 test x"${enable_languages}" = xyes;
1899 then
1900 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1901 exit 1
1902 fi
1903 fi
1904 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1906 # 'f95' is the old name for the 'fortran' language. We issue a warning
1907 # and make the substitution.
1908 case ,${enable_languages}, in
1909 *,f95,*)
1910 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1911 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1912 ;;
1913 esac
1915 # If bootstrapping, C++ must be enabled.
1916 case ",$enable_languages,:$enable_bootstrap" in
1917 *,c++,*:*) ;;
1918 *:yes)
1919 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1920 enable_languages="${enable_languages},c++"
1921 else
1922 AC_MSG_ERROR([bootstrapping requires c++ sources])
1923 fi
1924 ;;
1925 esac
1927 # First scan to see if an enabled language requires some other language.
1928 # We assume that a given config-lang.in will list all the language
1929 # front ends it requires, even if some are required indirectly.
1930 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1931 case ${lang_frag} in
1932 ..) ;;
1933 # The odd quoting in the next line works around
1934 # an apparent bug in bash 1.12 on linux.
1935 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1936 *)
1937 # From the config-lang.in, get $language, $lang_requires, and
1938 # $lang_requires_boot_languages.
1939 language=
1940 lang_requires=
1941 lang_requires_boot_languages=
1942 # set srcdir during sourcing lang_frag to the gcc dir.
1943 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1944 # polutes this shell
1945 saved_srcdir=${srcdir}
1946 srcdir=${srcdir}/gcc . ${lang_frag}
1947 srcdir=${saved_srcdir}
1948 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1949 case ,${enable_languages}, in
1950 *,$other,*) ;;
1951 *,default,*) ;;
1952 *,all,*) ;;
1953 *,$language,*)
1954 echo " \`$other' language required by \`$language'; enabling" 1>&2
1955 enable_languages="${enable_languages},${other}"
1956 ;;
1957 esac
1958 done
1959 for other in ${lang_requires_boot_languages} ; do
1960 if test "$other" != "c"; then
1961 case ,${enable_stage1_languages}, in
1962 *,$other,*) ;;
1963 *,default,*) ;;
1964 *,all,*) ;;
1965 *)
1966 case ,${enable_languages}, in
1967 *,$language,*)
1968 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1969 enable_stage1_languages="$enable_stage1_languages,${other}"
1970 ;;
1971 esac
1972 ;;
1973 esac
1974 fi
1975 done
1976 ;;
1977 esac
1978 done
1980 new_enable_languages=,c,
1982 # If LTO is enabled, add the LTO front end.
1983 if test "$enable_lto" = "yes" ; then
1984 case ,${enable_languages}, in
1985 *,lto,*) ;;
1986 *) enable_languages="${enable_languages},lto" ;;
1987 esac
1988 if test "${build_lto_plugin}" = "yes" ; then
1989 configdirs="$configdirs lto-plugin"
1990 fi
1991 fi
1993 # If we're building an offloading compiler, add the LTO front end.
1994 if test x"$enable_as_accelerator_for" != x ; then
1995 case ,${enable_languages}, in
1996 *,lto,*) ;;
1997 *) enable_languages="${enable_languages},lto" ;;
1998 esac
1999 fi
2001 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
2002 potential_languages=,c,
2004 enabled_target_libs=
2005 disabled_target_libs=
2007 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2008 case ${lang_frag} in
2009 ..) ;;
2010 # The odd quoting in the next line works around
2011 # an apparent bug in bash 1.12 on linux.
2012 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2013 *)
2014 # From the config-lang.in, get $language, $target_libs,
2015 # $lang_dirs, $boot_language, and $build_by_default
2016 language=
2017 target_libs=
2018 lang_dirs=
2019 subdir_requires=
2020 boot_language=no
2021 build_by_default=yes
2022 # set srcdir during sourcing. See above about save & restore
2023 saved_srcdir=${srcdir}
2024 srcdir=${srcdir}/gcc . ${lang_frag}
2025 srcdir=${saved_srcdir}
2026 if test x${language} = x; then
2027 echo "${lang_frag} doesn't set \$language." 1>&2
2028 exit 1
2029 fi
2031 if test "$language" = "c++"; then
2032 boot_language=yes
2033 fi
2035 add_this_lang=no
2036 # C is always enabled, so no need to add it again
2037 if test "$language" != "c"; then
2038 case ,${enable_languages}, in
2039 *,${language},*)
2040 # Language was explicitly selected; include it
2041 add_this_lang=yes
2042 ;;
2043 *,all,*)
2044 # All languages are enabled
2045 add_this_lang=all
2046 ;;
2047 *,default,*)
2048 # 'default' was selected, select it if it is a default language
2049 add_this_lang=${build_by_default}
2050 ;;
2051 esac
2052 fi
2054 # Disable languages that need other directories if these aren't available.
2055 for i in $subdir_requires; do
2056 test -f "$srcdir/gcc/$i/config-lang.in" && continue
2057 case ${add_this_lang} in
2058 yes)
2059 # Specifically requested language; tell them.
2060 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2061 ;;
2062 all)
2063 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2064 add_this_lang=unsupported
2065 ;;
2066 *)
2067 # Silently disable.
2068 add_this_lang=unsupported
2069 ;;
2070 esac
2071 done
2073 # Disable Ada if no preexisting GNAT is available.
2074 case ${add_this_lang}:${language}:${have_gnat} in
2075 yes:ada:no)
2076 # Specifically requested language; tell them.
2077 AC_MSG_ERROR([GNAT is required to build $language])
2078 ;;
2079 all:ada:no)
2080 AC_MSG_WARN([GNAT is required to build $language])
2081 add_this_lang=unsupported
2082 ;;
2083 *:ada:no)
2084 # Silently disable.
2085 add_this_lang=unsupported
2086 ;;
2087 esac
2089 # Disable jit if -enable-host-shared not specified
2090 # but not if building for Mingw. All code in Windows
2091 # is position independent code (PIC).
2092 case $target in
2093 *mingw*) ;;
2094 *)
2095 case ${add_this_lang}:${language}:${host_shared} in
2096 yes:jit:no)
2097 # PR jit/64780: explicitly specify --enable-host-shared
2098 AC_MSG_ERROR([
2099 Enabling language "jit" requires --enable-host-shared.
2101 --enable-host-shared typically slows the rest of the compiler down by
2102 a few %, so you must explicitly enable it.
2104 If you want to build both the jit and the regular compiler, it is often
2105 best to do this via two separate configure/builds, in separate
2106 directories, to avoid imposing the performance cost of
2107 --enable-host-shared on the regular compiler.])
2108 ;;
2109 all:jit:no)
2110 AC_MSG_WARN([--enable-host-shared required to build $language])
2111 add_this_lang=unsupported
2112 ;;
2113 *:jit:no)
2114 # Silently disable.
2115 add_this_lang=unsupported
2116 ;;
2117 esac
2118 ;;
2119 esac
2121 # Disable a language that is unsupported by the target.
2122 case "${add_this_lang}: $unsupported_languages " in
2123 no:*) ;;
2124 unsupported:*) ;;
2125 *:*" $language "*)
2126 AC_MSG_WARN([${language} not supported for this target])
2127 add_this_lang=unsupported
2128 ;;
2129 esac
2131 case $add_this_lang in
2132 unsupported)
2133 # Remove language-dependent dirs.
2134 disabled_target_libs="$disabled_target_libs $target_libs"
2135 noconfigdirs="$noconfigdirs $lang_dirs"
2136 ;;
2137 no)
2138 # Remove language-dependent dirs; still show language as supported.
2139 disabled_target_libs="$disabled_target_libs $target_libs"
2140 noconfigdirs="$noconfigdirs $lang_dirs"
2141 potential_languages="${potential_languages}${language},"
2142 ;;
2143 all|yes)
2144 new_enable_languages="${new_enable_languages}${language},"
2145 potential_languages="${potential_languages}${language},"
2146 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2147 enabled_target_libs="$enabled_target_libs $target_libs"
2148 case "${boot_language}:,$enable_stage1_languages," in
2149 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2150 # Add to (comma-separated) list of stage 1 languages.
2151 case ",$stage1_languages," in
2152 *,$language,* | ,yes, | ,all,) ;;
2153 *) stage1_languages="${stage1_languages}${language}," ;;
2154 esac
2155 # We need to bootstrap any supporting libraries.
2156 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2157 ;;
2158 esac
2159 ;;
2160 esac
2161 ;;
2162 esac
2163 done
2165 # Add target libraries which are only needed for disabled languages
2166 # to noconfigdirs.
2167 if test -n "$disabled_target_libs"; then
2168 for dir in $disabled_target_libs; do
2169 case " $enabled_target_libs " in
2170 *" ${dir} "*) ;;
2171 *) noconfigdirs="$noconfigdirs $dir" ;;
2172 esac
2173 done
2174 fi
2176 AC_ARG_ENABLE(stage1-languages,
2177 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2178 [choose additional languages to build during
2179 stage1. Mostly useful for compiler development])],
2180 [case ,${enable_stage1_languages}, in
2181 ,no,|,,)
2182 # Set it to something that will have no effect in the loop below
2183 enable_stage1_languages=c ;;
2184 ,yes,)
2185 enable_stage1_languages=`echo $new_enable_languages | \
2186 sed -e "s/^,//" -e "s/,$//" ` ;;
2187 *,all,*)
2188 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2189 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2190 esac
2192 # Add "good" languages from enable_stage1_languages to stage1_languages,
2193 # while "bad" languages go in missing_languages. Leave no duplicates.
2194 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2195 case $potential_languages in
2196 *,$i,*)
2197 case $stage1_languages in
2198 *,$i,*) ;;
2199 *) stage1_languages="$stage1_languages$i," ;;
2200 esac ;;
2201 *)
2202 case $missing_languages in
2203 *,$i,*) ;;
2204 *) missing_languages="$missing_languages$i," ;;
2205 esac ;;
2206 esac
2207 done])
2209 # Remove leading/trailing commas that were added for simplicity
2210 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2211 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2212 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2213 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2215 if test "x$missing_languages" != x; then
2216 AC_MSG_ERROR([
2217 The following requested languages could not be built: ${missing_languages}
2218 Supported languages are: ${potential_languages}])
2219 fi
2220 if test "x$new_enable_languages" != "x$enable_languages"; then
2221 echo The following languages will be built: ${new_enable_languages}
2222 enable_languages="$new_enable_languages"
2223 fi
2225 AC_SUBST(stage1_languages)
2226 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2227 fi
2229 # Handle --disable-<component> generically.
2230 for dir in $configdirs $build_configdirs $target_configdirs ; do
2231 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2232 varname=`echo $dirname | sed -e s/+/_/g`
2233 if eval test x\${enable_${varname}} "=" xno ; then
2234 noconfigdirs="$noconfigdirs $dir"
2235 fi
2236 done
2238 # Check for Boehm's garbage collector
2239 AC_ARG_ENABLE(objc-gc,
2240 [AS_HELP_STRING([--enable-objc-gc],
2241 [enable use of Boehm's garbage collector with the
2242 GNU Objective-C runtime])])
2243 AC_ARG_WITH([target-bdw-gc],
2244 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2245 [specify prefix directory for installed bdw-gc package.
2246 Equivalent to --with-target-bdw-gc-include=PATH/include
2247 plus --with-target-bdw-gc-lib=PATH/lib])])
2248 AC_ARG_WITH([target-bdw-gc-include],
2249 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2250 [specify directories for installed bdw-gc include files])])
2251 AC_ARG_WITH([target-bdw-gc-lib],
2252 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2253 [specify directories for installed bdw-gc library])])
2255 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2256 AC_MSG_CHECKING([for bdw garbage collector])
2257 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2258 dnl no bdw-gw options, assume default locations
2259 AC_MSG_RESULT([using bdw-gc in default locations])
2260 else
2261 dnl bdw-gw options, first error checking, complete checking in libobjc
2262 if 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-lib but --with-target-bdw-gc-include missing])
2264 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2265 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2266 else
2267 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2268 fi
2269 fi
2270 esac
2272 # Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2273 case ,${enable_languages}, in
2274 *,c++,*)
2275 # Disable libitm, libsanitizer if we're not building libstdc++
2276 case "${noconfigdirs}" in
2277 *target-libstdc++-v3*)
2278 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2279 ;;
2280 *) ;;
2281 esac
2282 ;;
2283 *)
2284 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2285 ;;
2286 esac
2288 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2289 # $build_configdirs and $target_configdirs.
2290 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2292 notsupp=""
2293 for dir in . $skipdirs $noconfigdirs ; do
2294 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2295 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2296 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2297 if test -r $srcdir/$dirname/configure ; then
2298 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2299 true
2300 else
2301 notsupp="$notsupp $dir"
2302 fi
2303 fi
2304 fi
2305 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2306 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2307 if test -r $srcdir/$dirname/configure ; then
2308 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2309 true
2310 else
2311 notsupp="$notsupp $dir"
2312 fi
2313 fi
2314 fi
2315 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2316 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2317 if test -r $srcdir/$dirname/configure ; then
2318 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2319 true
2320 else
2321 notsupp="$notsupp $dir"
2322 fi
2323 fi
2324 fi
2325 done
2327 # Quietly strip out all directories which aren't configurable in this tree.
2328 # This relies on all configurable subdirectories being autoconfiscated, which
2329 # is now the case.
2330 build_configdirs_all="$build_configdirs"
2331 build_configdirs=
2332 for i in ${build_configdirs_all} ; do
2333 j=`echo $i | sed -e s/build-//g`
2334 if test -f ${srcdir}/$j/configure ; then
2335 build_configdirs="${build_configdirs} $i"
2336 fi
2337 done
2339 configdirs_all="$configdirs"
2340 configdirs=
2341 for i in ${configdirs_all} ; do
2342 if test -f ${srcdir}/$i/configure ; then
2343 configdirs="${configdirs} $i"
2344 fi
2345 done
2347 target_configdirs_all="$target_configdirs"
2348 target_configdirs=
2349 for i in ${target_configdirs_all} ; do
2350 j=`echo $i | sed -e s/target-//g`
2351 if test -f ${srcdir}/$j/configure ; then
2352 target_configdirs="${target_configdirs} $i"
2353 fi
2354 done
2356 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2357 # so we have to add it after the preceding checks.
2358 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2359 then
2360 case " $configdirs " in
2361 *" libiberty "*)
2362 # If we can build libiberty, we can also build libiberty-linker-plugin.
2363 configdirs="$configdirs libiberty-linker-plugin"
2364 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2365 --with-libiberty=../libiberty-linker-plugin";;
2366 *)
2367 AC_MSG_ERROR([libiberty missing]);;
2368 esac
2369 fi
2371 # Sometimes we have special requirements for the host libiberty.
2372 extra_host_libiberty_configure_flags=
2373 extra_host_zlib_configure_flags=
2374 case " $configdirs " in
2375 *" lto-plugin "* | *" libcc1 "*)
2376 # When these are to be built as shared libraries, the same applies to
2377 # libiberty.
2378 extra_host_libiberty_configure_flags=--enable-shared
2379 ;;
2380 *" bfd "*)
2381 # When bfd is to be built as a shared library, the same applies to
2382 # zlib.
2383 if test "$enable_shared" = "yes"; then
2384 extra_host_zlib_configure_flags=--enable-host-shared
2385 fi
2386 ;;
2387 esac
2388 AC_SUBST(extra_host_libiberty_configure_flags)
2389 AC_SUBST(extra_host_zlib_configure_flags)
2391 # Produce a warning message for the subdirs we can't configure.
2392 # This isn't especially interesting in the Cygnus tree, but in the individual
2393 # FSF releases, it's important to let people know when their machine isn't
2394 # supported by the one or two programs in a package.
2396 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2397 # If $appdirs is non-empty, at least one of those directories must still
2398 # be configured, or we error out. (E.g., if the gas release supports a
2399 # specified target in some subdirs but not the gas subdir, we shouldn't
2400 # pretend that all is well.)
2401 if test -n "$appdirs" ; then
2402 for dir in $appdirs ; do
2403 if test -r $dir/Makefile.in ; then
2404 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2405 appdirs=""
2406 break
2407 fi
2408 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2409 appdirs=""
2410 break
2411 fi
2412 fi
2413 done
2414 if test -n "$appdirs" ; then
2415 echo "*** This configuration is not supported by this package." 1>&2
2416 exit 1
2417 fi
2418 fi
2419 # Okay, some application will build, or we don't care to check. Still
2420 # notify of subdirs not getting built.
2421 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2422 echo " ${notsupp}" 1>&2
2423 echo " (Any other directories should still work fine.)" 1>&2
2424 fi
2426 case "$host" in
2427 *msdosdjgpp*)
2428 enable_gdbtk=no ;;
2429 esac
2431 # To find our prefix, in gcc_cv_tool_prefix.
2432 ACX_TOOL_DIRS
2434 copy_dirs=
2436 AC_ARG_WITH([build-sysroot],
2437 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2438 [use sysroot as the system root during the build])],
2439 [if test x"$withval" != x ; then
2440 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2441 fi],
2442 [SYSROOT_CFLAGS_FOR_TARGET=])
2443 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2445 AC_ARG_WITH([debug-prefix-map],
2446 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2447 [map A to B, C to D ... in debug information])],
2448 [if test x"$withval" != x; then
2449 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2450 for debug_map in $withval; do
2451 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2452 done
2453 fi],
2454 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2455 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2457 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2458 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2459 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2460 # We want to ensure that TARGET libraries (which we know are built with
2461 # gcc) are built with "-O2 -g", so include those options when setting
2462 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2463 if test "x$CFLAGS_FOR_TARGET" = x; then
2464 if test "x${is_cross_compiler}" = xyes; then
2465 CFLAGS_FOR_TARGET="-g -O2"
2466 else
2467 CFLAGS_FOR_TARGET=$CFLAGS
2468 case " $CFLAGS " in
2469 *" -O2 "*) ;;
2470 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2471 esac
2472 case " $CFLAGS " in
2473 *" -g "* | *" -g3 "*) ;;
2474 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2475 esac
2476 fi
2477 fi
2478 AC_SUBST(CFLAGS_FOR_TARGET)
2480 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2481 if test "x${is_cross_compiler}" = xyes; then
2482 CXXFLAGS_FOR_TARGET="-g -O2"
2483 else
2484 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2485 case " $CXXFLAGS " in
2486 *" -O2 "*) ;;
2487 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2488 esac
2489 case " $CXXFLAGS " in
2490 *" -g "* | *" -g3 "*) ;;
2491 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2492 esac
2493 fi
2494 fi
2495 AC_SUBST(CXXFLAGS_FOR_TARGET)
2497 AC_SUBST(LDFLAGS_FOR_TARGET)
2499 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2500 # the named directory are copied to $(tooldir)/sys-include.
2501 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2502 if test x${is_cross_compiler} = xno ; then
2503 echo 1>&2 '***' --with-headers is only supported when cross compiling
2504 exit 1
2505 fi
2506 if test x"${with_headers}" != xyes ; then
2507 x=${gcc_cv_tool_prefix}
2508 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2509 fi
2510 fi
2512 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2513 # the name directories are copied to $(tooldir)/lib. Multiple directories
2514 # are permitted.
2515 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2516 if test x${is_cross_compiler} = xno ; then
2517 echo 1>&2 '***' --with-libs is only supported when cross compiling
2518 exit 1
2519 fi
2520 if test x"${with_libs}" != xyes ; then
2521 # Copy the libraries in reverse order, so that files in the first named
2522 # library override files in subsequent libraries.
2523 x=${gcc_cv_tool_prefix}
2524 for l in ${with_libs}; do
2525 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2526 done
2527 fi
2528 fi
2530 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2531 #
2532 # This is done by determining whether or not the appropriate directory
2533 # is available, and by checking whether or not specific configurations
2534 # have requested that this magic not happen.
2535 #
2536 # The command line options always override the explicit settings in
2537 # configure.ac, and the settings in configure.ac override this magic.
2538 #
2539 # If the default for a toolchain is to use GNU as and ld, and you don't
2540 # want to do that, then you should use the --without-gnu-as and
2541 # --without-gnu-ld options for the configure script. Similarly, if
2542 # the default is to use the included zlib and you don't want to do that,
2543 # you should use the --with-system-zlib option for the configure script.
2545 if test x${use_gnu_as} = x &&
2546 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2547 with_gnu_as=yes
2548 extra_host_args="$extra_host_args --with-gnu-as"
2549 fi
2551 if test x${use_gnu_ld} = x &&
2552 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2553 with_gnu_ld=yes
2554 extra_host_args="$extra_host_args --with-gnu-ld"
2555 fi
2557 if test x${use_included_zlib} = x &&
2558 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2559 :
2560 else
2561 with_system_zlib=yes
2562 extra_host_args="$extra_host_args --with-system-zlib"
2563 fi
2565 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2566 # can detect this case.
2568 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2569 with_newlib=yes
2570 extra_host_args="$extra_host_args --with-newlib"
2571 fi
2573 # Handle ${copy_dirs}
2574 set fnord ${copy_dirs}
2575 shift
2576 while test $# != 0 ; do
2577 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2578 :
2579 else
2580 echo Copying $1 to $2
2582 # Use the install script to create the directory and all required
2583 # parent directories.
2584 if test -d $2 ; then
2585 :
2586 else
2587 echo >config.temp
2588 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2589 fi
2591 # Copy the directory, assuming we have tar.
2592 # FIXME: Should we use B in the second tar? Not all systems support it.
2593 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2595 # It is the responsibility of the user to correctly adjust all
2596 # symlinks. If somebody can figure out how to handle them correctly
2597 # here, feel free to add the code.
2599 echo $1 > $2/COPIED
2600 fi
2601 shift; shift
2602 done
2604 # Determine a target-dependent exec_prefix that the installed
2605 # gcc will search in. Keep this list sorted by triplet, with
2606 # the *-*-osname triplets last.
2607 md_exec_prefix=
2608 case "${target}" in
2609 i[[34567]]86-pc-msdosdjgpp*)
2610 md_exec_prefix=/dev/env/DJDIR/bin
2611 ;;
2612 *-*-hpux* | \
2613 *-*-nto-qnx* | \
2614 *-*-solaris2*)
2615 md_exec_prefix=/usr/ccs/bin
2616 ;;
2617 esac
2619 extra_arflags_for_target=
2620 extra_nmflags_for_target=
2621 extra_ranlibflags_for_target=
2622 target_makefile_frag=/dev/null
2623 case "${target}" in
2624 spu-*-*)
2625 target_makefile_frag="config/mt-spu"
2626 ;;
2627 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2628 target_makefile_frag="config/mt-sde"
2629 ;;
2630 mipsisa*-*-elfoabi*)
2631 target_makefile_frag="config/mt-mips-elfoabi"
2632 ;;
2633 mips*-*-*linux* | mips*-*-gnu*)
2634 target_makefile_frag="config/mt-mips-gnu"
2635 ;;
2636 nios2-*-elf*)
2637 target_makefile_frag="config/mt-nios2-elf"
2638 ;;
2639 *-*-linux-android*)
2640 target_makefile_frag="config/mt-android"
2641 ;;
2642 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2643 target_makefile_frag="config/mt-gnu"
2644 ;;
2645 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2646 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2647 # commands to handle both 32-bit and 64-bit objects. These flags are
2648 # harmless if we're using GNU nm or ar.
2649 extra_arflags_for_target=" -X32_64"
2650 extra_nmflags_for_target=" -B -X32_64"
2651 ;;
2652 esac
2654 alphaieee_frag=/dev/null
2655 case $target in
2656 alpha*-*-*)
2657 # This just makes sure to use the -mieee option to build target libs.
2658 # This should probably be set individually by each library.
2659 alphaieee_frag="config/mt-alphaieee"
2660 ;;
2661 esac
2663 # If --enable-target-optspace always use -Os instead of -O2 to build
2664 # the target libraries, similarly if it is not specified, use -Os
2665 # on selected platforms.
2666 ospace_frag=/dev/null
2667 case "${enable_target_optspace}:${target}" in
2668 yes:*)
2669 ospace_frag="config/mt-ospace"
2670 ;;
2671 :d30v-*)
2672 ospace_frag="config/mt-d30v"
2673 ;;
2674 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2675 ospace_frag="config/mt-ospace"
2676 ;;
2677 no:* | :*)
2678 ;;
2679 *)
2680 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2681 ;;
2682 esac
2684 # Some systems (e.g., one of the i386-aix systems the gas testers are
2685 # using) don't handle "\$" correctly, so don't use it here.
2686 tooldir='${exec_prefix}'/${target_noncanonical}
2687 build_tooldir=${tooldir}
2689 # Create a .gdbinit file which runs the one in srcdir
2690 # and tells GDB to look there for source files.
2692 if test -r ${srcdir}/.gdbinit ; then
2693 case ${srcdir} in
2694 .) ;;
2695 *) cat > ./.gdbinit <<EOF
2696 # ${NO_EDIT}
2697 dir ${srcdir}
2698 dir .
2699 source ${srcdir}/.gdbinit
2700 EOF
2701 ;;
2702 esac
2703 fi
2705 # Make sure that the compiler is able to generate an executable. If it
2706 # can't, we are probably in trouble. We don't care whether we can run the
2707 # executable--we might be using a cross compiler--we only care whether it
2708 # can be created. At this point the main configure script has set CC.
2709 we_are_ok=no
2710 echo "int main () { return 0; }" > conftest.c
2711 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2712 if test $? = 0 ; then
2713 if test -s conftest || test -s conftest.exe ; then
2714 we_are_ok=yes
2715 fi
2716 fi
2717 case $we_are_ok in
2718 no)
2719 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2720 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2721 rm -f conftest*
2722 exit 1
2723 ;;
2724 esac
2725 rm -f conftest*
2727 # Decide which environment variable is used to find dynamic libraries.
2728 case "${host}" in
2729 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2730 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2731 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2732 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2733 esac
2735 # On systems where the dynamic library environment variable is PATH,
2736 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2737 # built executables to PATH.
2738 if test "$RPATH_ENVVAR" = PATH; then
2739 GCC_SHLIB_SUBDIR=/shlib
2740 else
2741 GCC_SHLIB_SUBDIR=
2742 fi
2744 # Adjust the toplevel makefile according to whether bootstrap was selected.
2745 case $enable_bootstrap in
2746 yes)
2747 bootstrap_suffix=bootstrap
2748 BUILD_CONFIG=bootstrap-debug
2749 ;;
2750 no)
2751 bootstrap_suffix=no-bootstrap
2752 BUILD_CONFIG=
2753 ;;
2754 esac
2756 AC_MSG_CHECKING(for default BUILD_CONFIG)
2758 AC_ARG_WITH([build-config],
2759 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2760 [use config/NAME.mk build configuration])],
2761 [case $with_build_config in
2762 yes) with_build_config= ;;
2763 no) with_build_config= BUILD_CONFIG= ;;
2764 esac])
2766 if test "x${with_build_config}" != x; then
2767 BUILD_CONFIG=$with_build_config
2768 else
2769 case $BUILD_CONFIG in
2770 bootstrap-debug)
2771 if echo "int f (void) { return 0; }" > conftest.c &&
2772 ${CC} -c conftest.c &&
2773 mv conftest.o conftest.o.g0 &&
2774 ${CC} -c -g conftest.c &&
2775 mv conftest.o conftest.o.g &&
2776 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2777 :
2778 else
2779 BUILD_CONFIG=
2780 fi
2781 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2782 ;;
2783 esac
2784 fi
2785 AC_MSG_RESULT($BUILD_CONFIG)
2786 AC_SUBST(BUILD_CONFIG)
2788 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2789 AC_MSG_CHECKING([for --enable-vtable-verify])
2790 AC_ARG_ENABLE(vtable-verify,
2791 [AS_HELP_STRING([--enable-vtable-verify],
2792 [Enable vtable verification feature])],
2793 [case "$enableval" in
2794 yes) enable_vtable_verify=yes ;;
2795 no) enable_vtable_verify=no ;;
2796 *) enable_vtable_verify=no;;
2797 esac],
2798 [enable_vtable_verify=no])
2799 AC_MSG_RESULT($enable_vtable_verify)
2801 # Record target_configdirs and the configure arguments for target and
2802 # build configuration in Makefile.
2803 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2804 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2805 bootstrap_fixincludes=no
2807 # If we are building libgomp, bootstrap it.
2808 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2809 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2810 fi
2812 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2813 # or bootstrap-ubsan, bootstrap it.
2814 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2815 case "$BUILD_CONFIG" in
2816 *bootstrap-asan* | *bootstrap-ubsan* )
2817 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2818 bootstrap_fixincludes=yes
2819 ;;
2820 esac
2821 fi
2823 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2824 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2825 test "$enable_vtable_verify" != no; then
2826 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2827 fi
2829 # Determine whether gdb needs tk/tcl or not.
2830 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2831 # and in that case we want gdb to be built without tk. Ugh!
2832 # In fact I believe gdb is the *only* package directly dependent on tk,
2833 # so we should be able to put the 'maybe's in unconditionally and
2834 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2835 # 100% sure that that's safe though.
2837 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2838 case "$enable_gdbtk" in
2839 no)
2840 GDB_TK="" ;;
2841 yes)
2842 GDB_TK="${gdb_tk}" ;;
2843 *)
2844 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2845 # distro. Eventually someone will fix this and move Insight, nee
2846 # gdbtk to a separate directory.
2847 if test -d ${srcdir}/gdb/gdbtk ; then
2848 GDB_TK="${gdb_tk}"
2849 else
2850 GDB_TK=""
2851 fi
2852 ;;
2853 esac
2854 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2855 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2857 # gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
2858 # else does, only include them if one of these is built. The Makefile
2859 # provides the ordering, so it's enough here to add to the list.
2860 case " ${configdirs} " in
2861 *\ gdb\ *)
2862 configdirs="${configdirs} gnulib gdbsupport"
2863 ;;
2864 *\ gdbserver\ *)
2865 configdirs="${configdirs} gnulib gdbsupport"
2866 ;;
2867 esac
2869 # Strip out unwanted targets.
2871 # While at that, we remove Makefiles if we were started for recursive
2872 # configuration, so that the top-level Makefile reconfigures them,
2873 # like we used to do when configure itself was recursive.
2875 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2876 # but now we're fixing up the Makefile ourselves with the additional
2877 # commands passed to AC_CONFIG_FILES. Use separate variables
2878 # extrasub-{build,host,target} not because there is any reason to split
2879 # the substitutions up that way, but only to remain below the limit of
2880 # 99 commands in a script, for HP-UX sed.
2882 # Do not nest @if/@endif or @unless/@endunless pairs, because
2883 # configure will not warn you at all.
2885 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2886 yes:yes:*\ gold\ *:*,c++,*) ;;
2887 yes:yes:*\ gold\ *:*)
2888 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2889 ;;
2890 esac
2892 extrasub_build=
2893 for module in ${build_configdirs} ; do
2894 if test -z "${no_recursion}" \
2895 && test -f ${build_subdir}/${module}/Makefile; then
2896 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2897 rm -f ${build_subdir}/${module}/Makefile
2898 fi
2899 extrasub_build="$extrasub_build
2900 /^@if build-$module\$/d
2901 /^@endif build-$module\$/d
2902 /^@unless build-$module\$/,/^@endunless build-$module\$/d
2903 /^@if build-$module-$bootstrap_suffix\$/d
2904 /^@endif build-$module-$bootstrap_suffix\$/d
2905 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
2906 done
2907 extrasub_host=
2908 for module in ${configdirs} ; do
2909 if test -z "${no_recursion}"; then
2910 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2911 if test -f ${file}; then
2912 echo 1>&2 "*** removing ${file} to force reconfigure"
2913 rm -f ${file}
2914 fi
2915 done
2916 fi
2917 case ${module},${bootstrap_fixincludes} in
2918 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2919 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2920 esac
2921 extrasub_host="$extrasub_host
2922 /^@if $module\$/d
2923 /^@endif $module\$/d
2924 /^@unless $module\$/,/^@endunless $module\$/d
2925 /^@if $module-$host_bootstrap_suffix\$/d
2926 /^@endif $module-$host_bootstrap_suffix\$/d
2927 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
2928 done
2929 extrasub_target=
2930 for module in ${target_configdirs} ; do
2931 if test -z "${no_recursion}" \
2932 && test -f ${target_subdir}/${module}/Makefile; then
2933 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2934 rm -f ${target_subdir}/${module}/Makefile
2935 fi
2937 # We only bootstrap target libraries listed in bootstrap_target_libs.
2938 case $bootstrap_target_libs in
2939 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2940 *) target_bootstrap_suffix=no-bootstrap ;;
2941 esac
2943 extrasub_target="$extrasub_target
2944 /^@if target-$module\$/d
2945 /^@endif target-$module\$/d
2946 /^@unless target-$module\$/,/^@endunless target-$module\$/d
2947 /^@if target-$module-$target_bootstrap_suffix\$/d
2948 /^@endif target-$module-$target_bootstrap_suffix\$/d
2949 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
2950 done
2952 # Do the final fixup along with target modules.
2953 extrasub_target="$extrasub_target
2954 /^@if /,/^@endif /d
2955 /^@unless /d
2956 /^@endunless /d"
2958 # Create the serialization dependencies. This uses a temporary file.
2960 AC_ARG_ENABLE([serial-configure],
2961 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2962 [force sequential configuration of
2963 sub-packages for the host, target or build
2964 machine, or all sub-packages])])
2966 case ${enable_serial_configure} in
2967 yes)
2968 enable_serial_build_configure=yes
2969 enable_serial_host_configure=yes
2970 enable_serial_target_configure=yes
2971 ;;
2972 esac
2974 # These force 'configure's to be done one at a time, to avoid problems
2975 # with contention over a shared config.cache.
2976 rm -f serdep.tmp
2977 echo '# serdep.tmp' > serdep.tmp
2978 olditem=
2979 test "x${enable_serial_build_configure}" = xyes &&
2980 for item in ${build_configdirs} ; do
2981 case ${olditem} in
2982 "") ;;
2983 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2984 esac
2985 olditem=${item}
2986 done
2987 olditem=
2988 test "x${enable_serial_host_configure}" = xyes &&
2989 for item in ${configdirs} ; do
2990 case ${olditem} in
2991 "") ;;
2992 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2993 esac
2994 olditem=${item}
2995 done
2996 olditem=
2997 test "x${enable_serial_target_configure}" = xyes &&
2998 for item in ${target_configdirs} ; do
2999 case ${olditem} in
3000 "") ;;
3001 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
3002 esac
3003 olditem=${item}
3004 done
3005 serialization_dependencies=serdep.tmp
3006 AC_SUBST_FILE(serialization_dependencies)
3008 # Base args. Strip norecursion, cache-file, srcdir, host, build,
3009 # target, nonopt, and variable assignments. These are the ones we
3010 # might not want to pass down to subconfigures. The exception being
3011 # --cache-file=/dev/null, which is used to turn off the use of cache
3012 # files altogether, and which should be passed on to subconfigures.
3013 # Also strip program-prefix, program-suffix, and program-transform-name,
3014 # so that we can pass down a consistent program-transform-name.
3015 baseargs=
3016 tbaseargs=
3017 keep_next=no
3018 skip_next=no
3019 eval "set -- $ac_configure_args"
3020 for ac_arg
3021 do
3022 if test X"$skip_next" = X"yes"; then
3023 skip_next=no
3024 continue
3025 fi
3026 if test X"$keep_next" = X"yes"; then
3027 case $ac_arg in
3028 *\'*)
3029 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3030 esac
3031 baseargs="$baseargs '$ac_arg'"
3032 tbaseargs="$tbaseargs '$ac_arg'"
3033 keep_next=no
3034 continue
3035 fi
3037 # Handle separated arguments. Based on the logic generated by
3038 # autoconf 2.59.
3039 case $ac_arg in
3040 *=* | --config-cache | -C | -disable-* | --disable-* \
3041 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3042 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3043 | -with-* | --with-* | -without-* | --without-* | --x)
3044 separate_arg=no
3045 ;;
3046 -*)
3047 separate_arg=yes
3048 ;;
3049 *)
3050 separate_arg=no
3051 ;;
3052 esac
3054 skip_targ=no
3055 case $ac_arg in
3056 changequote(,)
3057 --with-* | --without-*)
3058 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3060 case $libopt in
3061 *[-_]include)
3062 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3063 ;;
3064 *[-_]lib)
3065 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3066 ;;
3067 *)
3068 lib=$libopt
3069 ;;
3070 esac
3071 changequote([,])
3073 case $lib in
3074 mpc | mpfr | gmp | isl)
3075 # If we're processing --with-$lib, --with-$lib-include or
3076 # --with-$lib-lib, for one of the libs above, and target is
3077 # different from host, don't pass the current argument to any
3078 # target library's configure.
3079 if test x$is_cross_compiler = xyes; then
3080 skip_targ=yes
3081 fi
3082 ;;
3083 esac
3084 ;;
3085 esac
3087 case "$ac_arg" in
3088 --cache-file=/dev/null | \
3089 -cache-file=/dev/null )
3090 # Handled here to avoid the test to skip args below.
3091 baseargs="$baseargs '$ac_arg'"
3092 tbaseargs="$tbaseargs '$ac_arg'"
3093 # Assert: $separate_arg should always be no.
3094 keep_next=$separate_arg
3095 ;;
3096 --no*)
3097 continue
3098 ;;
3099 --c* | \
3100 --sr* | \
3101 --ho* | \
3102 --bu* | \
3103 --t* | \
3104 --program-* | \
3105 -cache_file* | \
3106 -srcdir* | \
3107 -host* | \
3108 -build* | \
3109 -target* | \
3110 -program-prefix* | \
3111 -program-suffix* | \
3112 -program-transform-name* )
3113 skip_next=$separate_arg
3114 continue
3115 ;;
3116 -*)
3117 # An option. Add it.
3118 case $ac_arg in
3119 *\'*)
3120 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3121 esac
3122 baseargs="$baseargs '$ac_arg'"
3123 if test X"$skip_targ" = Xno; then
3124 tbaseargs="$tbaseargs '$ac_arg'"
3125 fi
3126 keep_next=$separate_arg
3127 ;;
3128 *)
3129 # Either a variable assignment, or a nonopt (triplet). Don't
3130 # pass it down; let the Makefile handle this.
3131 continue
3132 ;;
3133 esac
3134 done
3135 # Remove the initial space we just introduced and, as these will be
3136 # expanded by make, quote '$'.
3137 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3139 # Add in --program-transform-name, after --program-prefix and
3140 # --program-suffix have been applied to it. Autoconf has already
3141 # doubled dollar signs and backslashes in program_transform_name; we want
3142 # the backslashes un-doubled, and then the entire thing wrapped in single
3143 # quotes, because this will be expanded first by make and then by the shell.
3144 # Also, because we want to override the logic in subdir configure scripts to
3145 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3146 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3147 ${program_transform_name}
3148 EOF_SED
3149 gcc_transform_name=`cat conftestsed.out`
3150 rm -f conftestsed.out
3151 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3152 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3153 if test "$silent" = yes; then
3154 baseargs="$baseargs --silent"
3155 tbaseargs="$tbaseargs --silent"
3156 fi
3157 baseargs="$baseargs --disable-option-checking"
3158 tbaseargs="$tbaseargs --disable-option-checking"
3160 # Record and document user additions to sub configure arguments.
3161 AC_ARG_VAR([build_configargs],
3162 [additional configure arguments for build directories])
3163 AC_ARG_VAR([host_configargs],
3164 [additional configure arguments for host directories])
3165 AC_ARG_VAR([target_configargs],
3166 [additional configure arguments for target directories])
3168 # For the build-side libraries, we just need to pretend we're native,
3169 # and not use the same cache file. Multilibs are neither needed nor
3170 # desired. We can't even use the same cache file for all build-side
3171 # libraries, as they're compiled differently; some with C, some with
3172 # C++ or with different feature-enabling options.
3173 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3175 # For host modules, accept cache file option, or specification as blank.
3176 case "${cache_file}" in
3177 "") # empty
3178 cache_file_option="" ;;
3179 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3180 cache_file_option="--cache-file=${cache_file}" ;;
3181 *) # relative path
3182 cache_file_option="--cache-file=../${cache_file}" ;;
3183 esac
3185 # Host dirs don't like to share a cache file either, horribly enough.
3186 # This seems to be due to autoconf 2.5x stupidity.
3187 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3189 target_configargs="$target_configargs ${tbaseargs}"
3191 # Passing a --with-cross-host argument lets the target libraries know
3192 # whether they are being built with a cross-compiler or being built
3193 # native. However, it would be better to use other mechanisms to make the
3194 # sorts of decisions they want to make on this basis. Please consider
3195 # this option to be deprecated. FIXME.
3196 if test x${is_cross_compiler} = xyes ; then
3197 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3198 fi
3200 # Special user-friendly check for native x86_64-linux build, if
3201 # multilib is not explicitly enabled.
3202 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3203 x86_64-*linux*:yes:$build:$build:)
3204 # Make sure we have a development environment that handles 32-bit
3205 dev64=no
3206 echo "int main () { return 0; }" > conftest.c
3207 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3208 if test $? = 0 ; then
3209 if test -s conftest || test -s conftest.exe ; then
3210 dev64=yes
3211 fi
3212 fi
3213 rm -f conftest*
3214 if test x${dev64} != xyes ; then
3215 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.])
3216 fi
3217 ;;
3218 esac
3220 # Default to --enable-multilib.
3221 if test x${enable_multilib} = x ; then
3222 target_configargs="--enable-multilib ${target_configargs}"
3223 fi
3225 # Pass --with-newlib if appropriate. Note that target_configdirs has
3226 # changed from the earlier setting of with_newlib.
3227 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3228 target_configargs="--with-newlib ${target_configargs}"
3229 fi
3231 # Different target subdirs use different values of certain variables
3232 # (notably CXX). Worse, multilibs use *lots* of different values.
3233 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3234 # it doesn't automatically accept command-line overrides of them.
3235 # This means it's not safe for target subdirs to share a cache file,
3236 # which is disgusting, but there you have it. Hopefully this can be
3237 # fixed in future. It's still worthwhile to use a cache file for each
3238 # directory. I think.
3240 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3241 # We need to pass --target, as newer autoconf's requires consistency
3242 # for target_alias and gcc doesn't manage it consistently.
3243 target_configargs="--cache-file=./config.cache ${target_configargs}"
3245 FLAGS_FOR_TARGET=
3246 case " $target_configdirs " in
3247 *" newlib "*)
3248 case " $target_configargs " in
3249 *" --with-newlib "*)
3250 case "$target" in
3251 *-cygwin*)
3252 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3253 ;;
3254 esac
3256 # If we're not building GCC, don't discard standard headers.
3257 if test -d ${srcdir}/gcc; then
3258 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3260 if test "${build}" != "${host}"; then
3261 # On Canadian crosses, CC_FOR_TARGET will have already been set
3262 # by `configure', so we won't have an opportunity to add -Bgcc/
3263 # to it. This is right: we don't want to search that directory
3264 # for binaries, but we want the header files in there, so add
3265 # them explicitly.
3266 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3268 # Someone might think of using the pre-installed headers on
3269 # Canadian crosses, in case the installed compiler is not fully
3270 # compatible with the compiler being built. In this case, it
3271 # would be better to flag an error than risking having
3272 # incompatible object files being constructed. We can't
3273 # guarantee that an error will be flagged, but let's hope the
3274 # compiler will do it, when presented with incompatible header
3275 # files.
3276 fi
3277 fi
3279 case "${target}-${is_cross_compiler}" in
3280 i[[3456789]]86-*-linux*-no)
3281 # Here host == target, so we don't need to build gcc,
3282 # so we don't want to discard standard headers.
3283 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3284 ;;
3285 *)
3286 # If we're building newlib, use its generic headers last, but search
3287 # for any libc-related directories first (so make it the last -B
3288 # switch).
3289 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3291 # If we're building libgloss, find the startup file, simulator library
3292 # and linker script.
3293 case " $target_configdirs " in
3294 *" libgloss "*)
3295 # Look for startup file, simulator library and maybe linker script.
3296 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3297 # Look for libnosys.a in case the target needs it.
3298 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3299 # Most targets have the linker script in the source directory.
3300 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3301 ;;
3302 esac
3303 ;;
3304 esac
3305 ;;
3306 esac
3307 ;;
3308 esac
3310 case "$target" in
3311 x86_64-*mingw* | *-w64-mingw*)
3312 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3313 # however, use a symlink named 'mingw' in ${prefix} .
3314 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3315 ;;
3316 *-mingw*)
3317 # MinGW can't be handled as Cygwin above since it does not use newlib.
3318 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3319 ;;
3320 esac
3322 # Allow the user to override the flags for
3323 # our build compiler if desired.
3324 if test x"${build}" = x"${host}" ; then
3325 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3326 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3327 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3328 fi
3330 # On Canadian crosses, we'll be searching the right directories for
3331 # the previously-installed cross compiler, so don't bother to add
3332 # flags for directories within the install tree of the compiler
3333 # being built; programs in there won't even run.
3334 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3335 # Search for pre-installed headers if nothing else fits.
3336 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3337 fi
3339 if test "x${use_gnu_ld}" = x &&
3340 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3341 # Arrange for us to find uninstalled linker scripts.
3342 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3343 fi
3345 # Search for other target-specific linker scripts and such.
3346 case "${target}" in
3347 mep*)
3348 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3349 ;;
3350 esac
3352 # Makefile fragments.
3353 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3354 do
3355 eval fragval=\$$frag
3356 if test $fragval != /dev/null; then
3357 eval $frag=${srcdir}/$fragval
3358 fi
3359 done
3360 AC_SUBST_FILE(host_makefile_frag)
3361 AC_SUBST_FILE(target_makefile_frag)
3362 AC_SUBST_FILE(alphaieee_frag)
3363 AC_SUBST_FILE(ospace_frag)
3365 # Miscellanea: directories, flags, etc.
3366 AC_SUBST(RPATH_ENVVAR)
3367 AC_SUBST(GCC_SHLIB_SUBDIR)
3368 AC_SUBST(tooldir)
3369 AC_SUBST(build_tooldir)
3370 AC_SUBST(CONFIGURE_GDB_TK)
3371 AC_SUBST(GDB_TK)
3372 AC_SUBST(INSTALL_GDB_TK)
3374 # Build module lists & subconfigure args.
3375 AC_SUBST(build_configargs)
3376 AC_SUBST(build_configdirs)
3378 # Host module lists & subconfigure args.
3379 AC_SUBST(host_configargs)
3380 AC_SUBST(configdirs)
3381 AC_SUBST(target_configdirs)
3383 # Target module lists & subconfigure args.
3384 AC_SUBST(target_configargs)
3387 # Build tools.
3388 AC_SUBST(AR_FOR_BUILD)
3389 AC_SUBST(AS_FOR_BUILD)
3390 AC_SUBST(CC_FOR_BUILD)
3391 AC_SUBST(CFLAGS_FOR_BUILD)
3392 AC_SUBST(CXXFLAGS_FOR_BUILD)
3393 AC_SUBST(CXX_FOR_BUILD)
3394 AC_SUBST(DLLTOOL_FOR_BUILD)
3395 AC_SUBST(GFORTRAN_FOR_BUILD)
3396 AC_SUBST(GOC_FOR_BUILD)
3397 AC_SUBST(GDC_FOR_BUILD)
3398 AC_SUBST(LDFLAGS_FOR_BUILD)
3399 AC_SUBST(LD_FOR_BUILD)
3400 AC_SUBST(NM_FOR_BUILD)
3401 AC_SUBST(RANLIB_FOR_BUILD)
3402 AC_SUBST(WINDMC_FOR_BUILD)
3403 AC_SUBST(WINDRES_FOR_BUILD)
3405 # Generate default definitions for YACC, M4, LEX and other programs that run
3406 # on the build machine. These are used if the Makefile can't locate these
3407 # programs in objdir.
3408 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3410 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3411 case " $build_configdirs " in
3412 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3413 esac
3415 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3416 case " $build_configdirs " in
3417 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3418 esac
3420 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3421 case " $build_configdirs " in
3422 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3423 esac
3425 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3426 case " $build_configdirs " in
3427 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3428 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3429 esac
3431 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3432 case " $build_configdirs " in
3433 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3434 esac
3436 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3437 case " $build_configdirs " in
3438 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3439 *)
3440 changequote(,)
3441 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3442 # higher, else we use the "missing" dummy.
3443 if ${MAKEINFO} --version \
3444 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3445 :
3446 else
3447 MAKEINFO="$MISSING makeinfo"
3448 fi
3449 ;;
3450 changequote([,])
3451 esac
3453 # FIXME: expect and dejagnu may become build tools?
3455 AC_CHECK_PROGS(EXPECT, expect, expect)
3456 case " $configdirs " in
3457 *" expect "*)
3458 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3459 ;;
3460 esac
3462 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3463 case " $configdirs " in
3464 *" dejagnu "*)
3465 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3466 ;;
3467 esac
3470 # Host tools.
3471 NCN_STRICT_CHECK_TOOLS(AR, ar)
3472 NCN_STRICT_CHECK_TOOLS(AS, as)
3473 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3474 NCN_STRICT_CHECK_TOOLS(LD, ld)
3475 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3476 NCN_STRICT_CHECK_TOOLS(NM, nm)
3477 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3478 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3479 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3480 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3481 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3482 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3483 NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
3484 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3485 AC_SUBST(CC)
3486 AC_SUBST(CXX)
3487 AC_SUBST(CFLAGS)
3488 AC_SUBST(CXXFLAGS)
3490 # Target tools.
3491 AC_ARG_WITH([build-time-tools],
3492 [AS_HELP_STRING([--with-build-time-tools=PATH],
3493 [use given path to find target tools during the build])],
3494 [case x"$withval" in
3495 x/*) ;;
3496 *)
3497 with_build_time_tools=
3498 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3499 ;;
3500 esac],
3501 [with_build_time_tools=])
3503 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3504 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3505 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3506 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3507 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3508 NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
3510 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3511 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3512 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3513 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3514 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3515 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3516 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3517 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3518 ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
3519 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3520 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3521 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3522 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3523 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3525 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3527 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3528 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3529 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3530 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3531 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3532 [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],
3533 c++)
3534 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3535 [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],
3536 c++)
3537 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3538 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3539 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3540 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3541 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3542 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3543 GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3544 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
3545 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3546 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3547 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3548 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3549 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3550 GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
3551 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3552 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3553 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3554 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3555 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3557 AC_SUBST(FLAGS_FOR_TARGET)
3558 AC_SUBST(RAW_CXX_FOR_TARGET)
3560 # Certain tools may need extra flags.
3561 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3562 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3563 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3565 # When building target libraries, except in a Canadian cross, we use
3566 # the same toolchain as the compiler we just built.
3567 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3568 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3569 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3570 if test $host = $build; then
3571 case " $configdirs " in
3572 *" gcc "*)
3573 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3574 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3575 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3576 ;;
3577 esac
3578 fi
3580 AC_SUBST(COMPILER_AS_FOR_TARGET)
3581 AC_SUBST(COMPILER_LD_FOR_TARGET)
3582 AC_SUBST(COMPILER_NM_FOR_TARGET)
3584 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3585 AC_ARG_ENABLE(maintainer-mode,
3586 [AS_HELP_STRING([--enable-maintainer-mode],
3587 [enable make rules and dependencies not useful
3588 (and sometimes confusing) to the casual installer])],
3589 USE_MAINTAINER_MODE=$enableval,
3590 USE_MAINTAINER_MODE=no)
3591 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3592 AC_SUBST(MAINTAINER_MODE_TRUE)
3593 AC_SUBST(MAINTAINER_MODE_FALSE)
3594 if test "$USE_MAINTAINER_MODE" = yes; then
3595 MAINTAINER_MODE_TRUE=
3596 MAINTAINER_MODE_FALSE='#'
3597 else
3598 MAINTAINER_MODE_TRUE='#'
3599 MAINTAINER_MODE_FALSE=
3600 fi
3601 MAINT=$MAINTAINER_MODE_TRUE
3602 AC_SUBST(MAINT)dnl
3604 # ---------------------
3605 # GCC bootstrap support
3606 # ---------------------
3608 # Stage specific cflags for build.
3609 stage1_cflags="-g"
3610 case $build in
3611 vax-*-*)
3612 case ${GCC} in
3613 yes) stage1_cflags="-g -Wa,-J" ;;
3614 *) stage1_cflags="-g -J" ;;
3615 esac ;;
3616 esac
3618 AC_SUBST(stage1_cflags)
3620 # Enable --enable-checking in stage1 of the compiler.
3621 AC_ARG_ENABLE(stage1-checking,
3622 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3623 [choose additional checking for stage1 of the compiler])],
3624 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3625 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3626 # For --disable-checking or implicit --enable-checking=release, avoid
3627 # setting --enable-checking=gc in the default stage1 checking for LTO
3628 # bootstraps. See PR62077.
3629 case $BUILD_CONFIG in
3630 *lto*)
3631 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3632 *)
3633 stage1_checking=--enable-checking=yes,types;;
3634 esac
3635 if test "x$enable_checking" = x && \
3636 test -d ${srcdir}/gcc && \
3637 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3638 stage1_checking=--enable-checking=yes,types,extra
3639 fi
3640 else
3641 stage1_checking=--enable-checking=$enable_checking,types
3642 fi])
3643 AC_SUBST(stage1_checking)
3645 # Enable -Werror in bootstrap stage2 and later.
3646 AC_ARG_ENABLE(werror,
3647 [AS_HELP_STRING([--enable-werror],
3648 [enable -Werror in bootstrap stage2 and later])],
3649 [
3650 case ${enable_werror} in
3651 yes) stage2_werror_flag="--enable-werror-always" ;;
3652 *) stage2_werror_flag="" ;;
3653 esac
3654 ],
3655 [
3656 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3657 case $BUILD_CONFIG in
3658 bootstrap-debug)
3659 stage2_werror_flag="--enable-werror-always" ;;
3660 "")
3661 stage2_werror_flag="--enable-werror-always" ;;
3662 esac
3663 fi
3664 ])
3666 AC_SUBST(stage2_werror_flag)
3668 # Specify what files to not compare during bootstrap.
3670 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3671 case "$target" in
3672 hppa*64*-*-hpux*) ;;
3673 hppa*-*-hpux*) compare_exclusions="$compare_exclusions | */libgcc/lib2funcs* | gcc/function-tests.o" ;;
3674 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
3675 esac
3676 AC_SUBST(compare_exclusions)
3678 AC_CONFIG_FILES([Makefile],
3679 [sed "$extrasub_build" Makefile |
3680 sed "$extrasub_host" |
3681 sed "$extrasub_target" > mf$$
3682 mv -f mf$$ Makefile],
3683 [extrasub_build="$extrasub_build"
3684 extrasub_host="$extrasub_host"
3685 extrasub_target="$extrasub_target"])
3686 AC_OUTPUT