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1 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
2 # 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
3 # 2014, 2015, 2016 Free Software Foundation, Inc.
4 #
5 # This file is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 3 of the License, or
8 # (at your option) any later version.
9 #
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program; see the file COPYING3. If not see
17 # <http://www.gnu.org/licenses/>.
18
19 ##############################################################################
20 ### WARNING: this file contains embedded tabs. Do not run untabify on this file.
21
22 m4_include(config/acx.m4)
23 m4_include(config/override.m4)
24 m4_include(config/proginstall.m4)
25 m4_include(config/elf.m4)
26 m4_include([libtool.m4])
27 m4_include([ltoptions.m4])
28 m4_include([ltsugar.m4])
29 m4_include([ltversion.m4])
30 m4_include([lt~obsolete.m4])
31 m4_include([config/isl.m4])
32
33 AC_INIT(move-if-change)
34 AC_PREREQ(2.64)
35 AC_DISABLE_OPTION_CHECKING
36
37 progname=$0
38 # if PWD already has a value, it is probably wrong.
39 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
40
41 # Export original configure arguments for use by sub-configures.
42 # Quote arguments with shell meta charatcers.
43 TOPLEVEL_CONFIGURE_ARGUMENTS=
44 set -- "$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)
64
65 # Find the build, host, and target systems.
66 ACX_NONCANONICAL_BUILD
67 ACX_NONCANONICAL_HOST
68 ACX_NONCANONICAL_TARGET
69
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,
78
79 AC_CANONICAL_SYSTEM
80 AC_ARG_PROGRAM
81
82 m4_pattern_allow([^AS_FOR_TARGET$])dnl
83 m4_pattern_allow([^AS_FOR_BUILD$])dnl
84
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
91
92 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
93
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
99
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
106
107 topsrcdir=$srcpwd
108
109 extra_host_args=
110
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.
114
115 # Subdirs will be configured in the order listed in build_configdirs,
116 # configdirs, or target_configdirs; see the serialization section below.
117
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.
121
122 # Double entries in build_configdirs, configdirs, or target_configdirs may
123 # cause circular dependencies and break everything horribly.
124
125 # these library is used by various programs built for the build
126 # environment
127 #
128 build_libs="build-libiberty build-libcpp"
129
130 # these tools are built for the build environment
131 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
132
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"
136
137 # these tools are built for the host environment
138 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
139 # know that we are building the simulator.
140 # binutils, gas and ld appear in that order because it makes sense to run
141 # "make check" in that particular order.
142 # If --enable-gold is used, "gold" may replace "ld".
143 host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools"
144
145 # these libraries are built for the target environment, and are built after
146 # the host libraries and the host tools (which may be a cross compiler)
147 # Note that libiberty is not a target library.
148 target_libraries="target-libgcc \
149 target-libbacktrace \
150 target-libgloss \
151 target-newlib \
152 target-libgomp \
153 target-libcilkrts \
154 target-liboffloadmic \
155 target-libhsail-rt \
156 target-libatomic \
157 target-libitm \
158 target-libstdc++-v3 \
159 target-libsanitizer \
160 target-libvtv \
161 target-libmpx \
162 target-libssp \
163 target-libquadmath \
164 target-libgfortran \
165 target-libffi \
166 target-libobjc \
167 target-libada \
168 target-libgo"
169
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"
177
178 ################################################################################
179
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}`
188
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 ])
199
200 ################################################################################
201
202 srcname="gnu development package"
203
204 # This gets set non-empty for some net releases of packages.
205 appdirs=""
206
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
214
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
222
223 # Skipdirs are removed silently.
224 skipdirs=
225 # Noconfigdirs are removed loudly.
226 noconfigdirs=""
227
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
234
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
241
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
250
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.
253
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
263
264 # Some are only suitable for cross toolchains.
265 # Remove these if host=target.
266 cross_only="target-libgloss target-newlib target-opcodes"
267
268 case $is_cross_compiler in
269 no) skipdirs="${skipdirs} ${cross_only}" ;;
270 esac
271
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
280
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
286
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])])
291
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=])
302
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.
320
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
344
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
365
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)
371
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
390
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=])
403
404 # Configure extra directories which are host specific
405
406 case "${host}" in
407 *-cygwin*)
408 configdirs="$configdirs libtermcap" ;;
409 esac
410
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=
414
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.
418
419 case "${host}" in
420 i[[3456789]]86-*-msdosdjgpp*)
421 noconfigdirs="$noconfigdirs tcl tk itcl"
422 ;;
423 esac
424
425
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
434
435
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
445
446
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
454
455 AC_ARG_ENABLE(libssp,
456 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
457 ENABLE_LIBSSP=$enableval,
458 ENABLE_LIBSSP=yes)
459
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]
468
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)
504
505 # Enable libgomp by default on hosted POSIX systems, and a few others.
506 if test x$enable_libgomp = x ; then
507 case "${target}" in
508 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
509 ;;
510 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
511 ;;
512 *-*-solaris2* | *-*-hpux11*)
513 ;;
514 *-*-darwin* | *-*-aix*)
515 ;;
516 nvptx*-*-*)
517 ;;
518 *)
519 noconfigdirs="$noconfigdirs target-libgomp"
520 ;;
521 esac
522 fi
523
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
539
540 # Disable libcilkrts on unsupported systems.
541 if test -d ${srcdir}/libcilkrts; then
542 if test x$enable_libcilkrts = x; then
543 AC_MSG_CHECKING([for libcilkrts support])
544 if (srcdir=${srcdir}/libcilkrts; \
545 . ${srcdir}/configure.tgt; \
546 test -n "$UNSUPPORTED")
547 then
548 AC_MSG_RESULT([no])
549 noconfigdirs="$noconfigdirs target-libcilkrts"
550 else
551 AC_MSG_RESULT([yes])
552 fi
553 fi
554 fi
555
556 # Disable liboffloadmic on unsupported systems.
557 if test -d ${srcdir}/liboffloadmic; then
558 if test x$enable_liboffloadmic != xno; then
559 AC_MSG_CHECKING([for liboffloadmic support])
560 if (srcdir=${srcdir}/liboffloadmic; \
561 . ${srcdir}/configure.tgt; \
562 test -n "$UNSUPPORTED")
563 then
564 AC_MSG_RESULT([no])
565 noconfigdirs="$noconfigdirs target-liboffloadmic"
566 else
567 AC_MSG_RESULT([yes])
568 fi
569 fi
570 fi
571
572 # Disable libitm on unsupported systems.
573 if test -d ${srcdir}/libitm; then
574 if test x$enable_libitm = x; then
575 AC_MSG_CHECKING([for libitm support])
576 if (srcdir=${srcdir}/libitm; \
577 . ${srcdir}/configure.tgt; \
578 test -n "$UNSUPPORTED")
579 then
580 AC_MSG_RESULT([no])
581 noconfigdirs="$noconfigdirs target-libitm"
582 else
583 AC_MSG_RESULT([yes])
584 fi
585 fi
586 fi
587
588 # Disable libsanitizer on unsupported systems.
589 if test -d ${srcdir}/libsanitizer; then
590 if test x$enable_libsanitizer = x; then
591 AC_MSG_CHECKING([for libsanitizer support])
592 if (srcdir=${srcdir}/libsanitizer; \
593 . ${srcdir}/configure.tgt; \
594 test -n "$UNSUPPORTED")
595 then
596 AC_MSG_RESULT([no])
597 noconfigdirs="$noconfigdirs target-libsanitizer"
598 else
599 AC_MSG_RESULT([yes])
600 fi
601 fi
602 fi
603
604 # Disable libvtv on unsupported systems.
605 if test -d ${srcdir}/libvtv; then
606 if test x$enable_libvtv = x; then
607 AC_MSG_CHECKING([for libvtv support])
608 if (srcdir=${srcdir}/libvtv; \
609 . ${srcdir}/configure.tgt; \
610 test "$VTV_SUPPORTED" != "yes")
611 then
612 AC_MSG_RESULT([no])
613 noconfigdirs="$noconfigdirs target-libvtv"
614 else
615 AC_MSG_RESULT([yes])
616 fi
617 fi
618 fi
619
620
621 # Enable libmpx on supported systems by request.
622 if test -d ${srcdir}/libmpx; then
623 if test x$enable_libmpx = x; then
624 AC_MSG_CHECKING([for libmpx support])
625 if (srcdir=${srcdir}/libmpx; \
626 . ${srcdir}/configure.tgt; \
627 test "$LIBMPX_SUPPORTED" != "yes")
628 then
629 AC_MSG_RESULT([no])
630 noconfigdirs="$noconfigdirs target-libmpx"
631 else
632 AC_MSG_RESULT([yes])
633 fi
634 fi
635 fi
636
637 # Disable libhsail-rt on unsupported systems.
638 if test -d ${srcdir}/libhsail-rt; then
639 if test x$enable_libhsail_rt = x; then
640 AC_MSG_CHECKING([for libhsail-rt support])
641 if (srcdir=${srcdir}/libhsail-rt; \
642 . ${srcdir}/configure.tgt; \
643 test -n "$UNSUPPORTED")
644 then
645 AC_MSG_RESULT([no])
646 unsupported_languages="$unsupported_languages brig"
647 # This implicitly disables also target-libhsail-rt as it won't
648 # get added to the build without BRIG FE.
649 else
650 AC_MSG_RESULT([yes])
651 fi
652 fi
653 fi
654
655
656 # Disable libquadmath for some systems.
657 case "${target}" in
658 avr-*-*)
659 noconfigdirs="$noconfigdirs target-libquadmath"
660 ;;
661 # libquadmath is unused on AIX and libquadmath build process use of
662 # LD_LIBRARY_PATH can break AIX bootstrap.
663 powerpc-*-aix* | rs6000-*-aix*)
664 noconfigdirs="$noconfigdirs target-libquadmath"
665 ;;
666 esac
667
668 # Disable libssp for some systems.
669 case "${target}" in
670 avr-*-*)
671 # No hosted I/O support.
672 noconfigdirs="$noconfigdirs target-libssp"
673 ;;
674 powerpc-*-aix* | rs6000-*-aix*)
675 noconfigdirs="$noconfigdirs target-libssp"
676 ;;
677 rl78-*-*)
678 # libssp uses a misaligned load to trigger a fault, but the RL78
679 # doesn't fault for those - instead, it gives a build-time error
680 # for explicit misaligned loads.
681 noconfigdirs="$noconfigdirs target-libssp"
682 ;;
683 visium-*-*)
684 # No hosted I/O support.
685 noconfigdirs="$noconfigdirs target-libssp"
686 ;;
687 esac
688
689 # Disable libstdc++-v3 for some systems.
690 # Allow user to override this if they pass --enable-libstdc++-v3
691 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
692 case "${target}" in
693 *-*-vxworks*)
694 # VxWorks uses the Dinkumware C++ library.
695 noconfigdirs="$noconfigdirs target-libstdc++-v3"
696 ;;
697 arm*-wince-pe*)
698 # the C++ libraries don't build on top of CE's C libraries
699 noconfigdirs="$noconfigdirs target-libstdc++-v3"
700 ;;
701 avr-*-*)
702 noconfigdirs="$noconfigdirs target-libstdc++-v3"
703 ;;
704 ft32-*-*)
705 noconfigdirs="$noconfigdirs target-libstdc++-v3"
706 ;;
707 esac
708 fi
709
710 # Disable Fortran for some systems.
711 case "${target}" in
712 mmix-*-*)
713 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
714 unsupported_languages="$unsupported_languages fortran"
715 ;;
716 esac
717
718 # Disable libffi for some systems.
719 case "${target}" in
720 powerpc-*-darwin*)
721 ;;
722 i[[3456789]]86-*-darwin*)
723 ;;
724 x86_64-*-darwin[[912]]*)
725 ;;
726 *-*-darwin*)
727 noconfigdirs="$noconfigdirs target-libffi"
728 ;;
729 *-*-netware*)
730 noconfigdirs="$noconfigdirs target-libffi"
731 ;;
732 *-*-phoenix*)
733 noconfigdirs="$noconfigdirs target-libffi"
734 ;;
735 *-*-rtems*)
736 noconfigdirs="$noconfigdirs target-libffi"
737 ;;
738 *-*-tpf*)
739 noconfigdirs="$noconfigdirs target-libffi"
740 ;;
741 *-*-uclinux*)
742 noconfigdirs="$noconfigdirs target-libffi"
743 ;;
744 *-*-vxworks*)
745 noconfigdirs="$noconfigdirs target-libffi"
746 ;;
747 aarch64*-*-freebsd*)
748 noconfigdirs="$noconfigdirs target-libffi"
749 ;;
750 alpha*-*-*vms*)
751 noconfigdirs="$noconfigdirs target-libffi"
752 ;;
753 arm*-*-freebsd*)
754 noconfigdirs="$noconfigdirs target-libffi"
755 ;;
756 arm-wince-pe)
757 noconfigdirs="$noconfigdirs target-libffi"
758 ;;
759 arm*-*-symbianelf*)
760 noconfigdirs="$noconfigdirs target-libffi"
761 ;;
762 cris-*-* | crisv32-*-*)
763 case "${target}" in
764 *-*-linux*)
765 ;;
766 *) # See PR46792 regarding target-libffi.
767 noconfigdirs="$noconfigdirs target-libffi";;
768 esac
769 ;;
770 hppa*64*-*-hpux*)
771 noconfigdirs="$noconfigdirs target-libffi"
772 ;;
773 hppa*-hp-hpux11*)
774 ;;
775 hppa*-*-hpux*)
776 noconfigdirs="$noconfigdirs target-libffi"
777 ;;
778 ia64*-*-*vms*)
779 noconfigdirs="$noconfigdirs target-libffi"
780 ;;
781 i[[3456789]]86-w64-mingw*)
782 noconfigdirs="$noconfigdirs target-libffi"
783 ;;
784 i[[3456789]]86-*-mingw*)
785 noconfigdirs="$noconfigdirs target-libffi"
786 ;;
787 x86_64-*-mingw*)
788 noconfigdirs="$noconfigdirs target-libffi"
789 ;;
790 mmix-*-*)
791 noconfigdirs="$noconfigdirs target-libffi"
792 ;;
793 powerpc-*-aix*)
794 # copied from rs6000-*-* entry
795 noconfigdirs="$noconfigdirs target-libffi"
796 ;;
797 rs6000-*-aix*)
798 noconfigdirs="$noconfigdirs target-libffi"
799 ;;
800 ft32-*-*)
801 noconfigdirs="$noconfigdirs target-libffi"
802 ;;
803 *-*-lynxos*)
804 noconfigdirs="$noconfigdirs target-libffi"
805 ;;
806 esac
807
808 # Disable the go frontend on systems where it is known to not work. Please keep
809 # this in sync with contrib/config-list.mk.
810 case "${target}" in
811 *-*-darwin* | *-*-cygwin* | *-*-mingw* | *-*-aix*)
812 unsupported_languages="$unsupported_languages go"
813 ;;
814 esac
815
816 # Disable libgo for some systems where it is known to not work.
817 # For testing, you can easily override this with --enable-libgo.
818 if test x$enable_libgo = x; then
819 case "${target}" in
820 *-*-darwin*)
821 # PR 46986
822 noconfigdirs="$noconfigdirs target-libgo"
823 ;;
824 *-*-cygwin* | *-*-mingw*)
825 noconfigdirs="$noconfigdirs target-libgo"
826 ;;
827 *-*-aix*)
828 noconfigdirs="$noconfigdirs target-libgo"
829 ;;
830 esac
831 fi
832
833 # Default libgloss CPU subdirectory.
834 libgloss_dir="$target_cpu"
835
836 case "${target}" in
837 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
838 libgloss_dir=wince
839 ;;
840 aarch64*-*-* )
841 libgloss_dir=aarch64
842 ;;
843 arm*-*-*)
844 libgloss_dir=arm
845 ;;
846 cris-*-* | crisv32-*-*)
847 libgloss_dir=cris
848 ;;
849 hppa*-*-*)
850 libgloss_dir=pa
851 ;;
852 i[[3456789]]86-*-*)
853 libgloss_dir=i386
854 ;;
855 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
856 libgloss_dir=m68hc11
857 ;;
858 m68*-*-* | fido-*-*)
859 libgloss_dir=m68k
860 ;;
861 mips*-*-*)
862 libgloss_dir=mips
863 ;;
864 powerpc*-*-*)
865 libgloss_dir=rs6000
866 ;;
867 sparc*-*-*)
868 libgloss_dir=sparc
869 ;;
870 esac
871
872 # Disable newlib and libgloss for various target OSes.
873 case "${target}" in
874 alpha*-dec-osf*)
875 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
876 ;;
877 i[[3456789]]86-*-linux*)
878 # This section makes it possible to build newlib natively on linux.
879 # If we are using a cross compiler then don't configure newlib.
880 if test x${is_cross_compiler} != xno ; then
881 noconfigdirs="$noconfigdirs target-newlib"
882 fi
883 noconfigdirs="$noconfigdirs target-libgloss"
884 # If we are not using a cross compiler, do configure newlib.
885 # Note however, that newlib will only be configured in this situation
886 # if the --with-newlib option has been given, because otherwise
887 # 'target-newlib' will appear in skipdirs.
888 ;;
889 i[[3456789]]86-*-rdos*)
890 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
891 ;;
892 sh*-*-pe|mips*-*-pe|arm-wince-pe)
893 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
894 ;;
895 sparc-*-sunos4*)
896 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
897 ;;
898 *-*-aix*)
899 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
900 ;;
901 *-*-beos*)
902 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
903 ;;
904 *-*-chorusos)
905 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
906 ;;
907 *-*-dragonfly*)
908 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
909 ;;
910 *-*-freebsd*)
911 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
912 ;;
913 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
914 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
915 ;;
916 *-*-lynxos*)
917 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
918 ;;
919 *-*-mingw*)
920 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
921 ;;
922 *-*-netbsd*)
923 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
924 ;;
925 *-*-netware*)
926 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
927 ;;
928 *-*-tpf*)
929 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
930 ;;
931 *-*-uclinux*)
932 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
933 ;;
934 *-*-vxworks*)
935 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
936 ;;
937 esac
938
939 case "${target}" in
940 *-*-chorusos)
941 ;;
942 aarch64-*-darwin*)
943 noconfigdirs="$noconfigdirs ld gas gdb gprof"
944 noconfigdirs="$noconfigdirs sim target-rda"
945 ;;
946 arm-*-darwin*)
947 noconfigdirs="$noconfigdirs ld gas gdb gprof"
948 noconfigdirs="$noconfigdirs sim target-rda"
949 ;;
950 powerpc-*-darwin*)
951 noconfigdirs="$noconfigdirs ld gas gdb gprof"
952 noconfigdirs="$noconfigdirs sim target-rda"
953 ;;
954 i[[3456789]]86-*-darwin*)
955 noconfigdirs="$noconfigdirs ld gprof"
956 noconfigdirs="$noconfigdirs sim target-rda"
957 ;;
958 x86_64-*-darwin[[912]]*)
959 noconfigdirs="$noconfigdirs ld gas gprof"
960 noconfigdirs="$noconfigdirs sim target-rda"
961 ;;
962 *-*-darwin*)
963 noconfigdirs="$noconfigdirs ld gas gdb gprof"
964 noconfigdirs="$noconfigdirs sim target-rda"
965 ;;
966 *-*-dragonfly*)
967 ;;
968 *-*-freebsd*)
969 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
970 && test -f /usr/local/include/gmp.h; then
971 with_gmp=/usr/local
972 fi
973 ;;
974 *-*-kaos*)
975 # Remove unsupported stuff on all kaOS configurations.
976 noconfigdirs="$noconfigdirs target-libgloss"
977 ;;
978 *-*-netbsd*)
979 ;;
980 *-*-netware*)
981 ;;
982 *-*-phoenix*)
983 noconfigdirs="$noconfigdirs target-libgloss"
984 ;;
985 *-*-rtems*)
986 noconfigdirs="$noconfigdirs target-libgloss"
987 # this is not caught below because this stanza matches earlier
988 case $target in
989 or1k*-*-*) noconfigdirs="$noconfigdirs gdb" ;;
990 esac
991 ;;
992 # The tpf target doesn't support gdb yet.
993 *-*-tpf*)
994 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
995 ;;
996 *-*-uclinux*)
997 noconfigdirs="$noconfigdirs target-rda"
998 ;;
999 *-*-vxworks*)
1000 ;;
1001 alpha*-dec-osf*)
1002 # ld works, but does not support shared libraries.
1003 # gas doesn't generate exception information.
1004 noconfigdirs="$noconfigdirs gas ld"
1005 ;;
1006 alpha*-*-*vms*)
1007 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1008 ;;
1009 alpha*-*-*)
1010 # newlib is not 64 bit ready
1011 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1012 ;;
1013 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1014 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1015 ;;
1016 arc*-*-*)
1017 noconfigdirs="$noconfigdirs sim"
1018 ;;
1019 arm-*-pe*)
1020 noconfigdirs="$noconfigdirs target-libgloss"
1021 ;;
1022 arm-*-riscix*)
1023 noconfigdirs="$noconfigdirs ld target-libgloss"
1024 ;;
1025 avr-*-*)
1026 if test x${with_avrlibc} != xno; then
1027 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1028 fi
1029 ;;
1030 c4x-*-* | tic4x-*-*)
1031 noconfigdirs="$noconfigdirs target-libgloss"
1032 ;;
1033 tic54x-*-*)
1034 noconfigdirs="$noconfigdirs target-libgloss gdb"
1035 ;;
1036 d10v-*-*)
1037 noconfigdirs="$noconfigdirs target-libgloss"
1038 ;;
1039 d30v-*-*)
1040 noconfigdirs="$noconfigdirs gdb"
1041 ;;
1042 fr30-*-elf*)
1043 noconfigdirs="$noconfigdirs gdb"
1044 ;;
1045 ft32-*-*)
1046 noconfigdirs="$noconfigdirs target-rda gprof"
1047 ;;
1048 moxie-*-*)
1049 noconfigdirs="$noconfigdirs"
1050 ;;
1051 h8300*-*-*)
1052 noconfigdirs="$noconfigdirs target-libgloss"
1053 ;;
1054 h8500-*-*)
1055 noconfigdirs="$noconfigdirs target-libgloss"
1056 ;;
1057 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1058 ;;
1059 hppa*64*-*-hpux*)
1060 noconfigdirs="$noconfigdirs gdb"
1061 ;;
1062 hppa*-*-hpux11*)
1063 noconfigdirs="$noconfigdirs gdb ld"
1064 ;;
1065 hppa*64*-*-linux*)
1066 ;;
1067 hppa*-*-linux*)
1068 ;;
1069 hppa*-*-*elf* | \
1070 hppa*-*-lites* | \
1071 hppa*-*-openbsd* | \
1072 hppa*64*-*-*)
1073 ;;
1074 hppa*-*-pro*)
1075 ;;
1076 hppa*-*-*)
1077 noconfigdirs="$noconfigdirs ld"
1078 ;;
1079 i960-*-*)
1080 noconfigdirs="$noconfigdirs gdb"
1081 ;;
1082 ia64*-*-elf*)
1083 # No gdb support yet.
1084 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1085 ;;
1086 ia64*-**-hpux*)
1087 # No ld support yet.
1088 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1089 ;;
1090 ia64*-*-*vms*)
1091 # No ld support yet.
1092 noconfigdirs="$noconfigdirs libgui itcl ld"
1093 ;;
1094 i[[3456789]]86-w64-mingw*)
1095 ;;
1096 i[[3456789]]86-*-mingw*)
1097 target_configdirs="$target_configdirs target-winsup"
1098 ;;
1099 *-*-cygwin*)
1100 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1101 noconfigdirs="$noconfigdirs target-libgloss"
1102 # always build newlib if winsup directory is present.
1103 if test -d "$srcdir/winsup/cygwin"; then
1104 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1105 elif test -d "$srcdir/newlib"; then
1106 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1107 fi
1108 ;;
1109 i[[3456789]]86-*-pe)
1110 noconfigdirs="$noconfigdirs target-libgloss"
1111 ;;
1112 i[[3456789]]86-*-sco3.2v5*)
1113 # The linker does not yet know about weak symbols in COFF,
1114 # and is not configured to handle mixed ELF and COFF.
1115 noconfigdirs="$noconfigdirs ld target-libgloss"
1116 ;;
1117 i[[3456789]]86-*-sco*)
1118 noconfigdirs="$noconfigdirs gprof target-libgloss"
1119 ;;
1120 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1121 noconfigdirs="$noconfigdirs target-libgloss"
1122 ;;
1123 i[[3456789]]86-*-sysv4*)
1124 noconfigdirs="$noconfigdirs target-libgloss"
1125 ;;
1126 i[[3456789]]86-*-beos*)
1127 noconfigdirs="$noconfigdirs gdb"
1128 ;;
1129 i[[3456789]]86-*-rdos*)
1130 noconfigdirs="$noconfigdirs gdb"
1131 ;;
1132 mmix-*-*)
1133 noconfigdirs="$noconfigdirs gdb"
1134 ;;
1135 mt-*-*)
1136 noconfigdirs="$noconfigdirs sim"
1137 ;;
1138 powerpc-*-aix*)
1139 # copied from rs6000-*-* entry
1140 noconfigdirs="$noconfigdirs gprof"
1141 ;;
1142 powerpc*-*-winnt* | powerpc*-*-pe*)
1143 target_configdirs="$target_configdirs target-winsup"
1144 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1145 # always build newlib.
1146 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1147 ;;
1148 # This is temporary until we can link against shared libraries
1149 powerpcle-*-solaris*)
1150 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1151 ;;
1152 powerpc-*-beos*)
1153 noconfigdirs="$noconfigdirs gdb"
1154 ;;
1155 rs6000-*-lynxos*)
1156 noconfigdirs="$noconfigdirs gprof"
1157 ;;
1158 rs6000-*-aix*)
1159 noconfigdirs="$noconfigdirs gprof"
1160 ;;
1161 rs6000-*-*)
1162 noconfigdirs="$noconfigdirs gprof"
1163 ;;
1164 m68k-apollo-*)
1165 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1166 ;;
1167 microblaze*)
1168 noconfigdirs="$noconfigdirs gprof"
1169 ;;
1170 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1171 if test x$with_newlib = xyes; then
1172 noconfigdirs="$noconfigdirs gprof"
1173 fi
1174 ;;
1175 mips*-*-irix5*)
1176 noconfigdirs="$noconfigdirs gprof target-libgloss"
1177 ;;
1178 mips*-*-irix6*)
1179 noconfigdirs="$noconfigdirs gprof target-libgloss"
1180 ;;
1181 mips*-*-bsd*)
1182 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1183 ;;
1184 mips*-*-linux*)
1185 ;;
1186 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1187 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1188 noconfigdirs="$noconfigdirs ld gas gprof"
1189 ;;
1190 mips*-*-*)
1191 noconfigdirs="$noconfigdirs gprof"
1192 ;;
1193 nvptx*-*-*)
1194 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1195 ;;
1196 or1k*-*-*)
1197 noconfigdirs="$noconfigdirs gdb"
1198 ;;
1199 sh-*-*)
1200 case "${target}" in
1201 sh*-*-elf)
1202 ;;
1203 *)
1204 noconfigdirs="$noconfigdirs target-libgloss" ;;
1205 esac
1206 ;;
1207 sparc-*-sunos4*)
1208 if test x${is_cross_compiler} = xno ; then
1209 use_gnu_ld=no
1210 fi
1211 ;;
1212 tic6x-*-*)
1213 noconfigdirs="$noconfigdirs sim"
1214 ;;
1215 tilepro*-*-* | tilegx*-*-*)
1216 noconfigdirs="$noconfigdirs sim"
1217 ;;
1218 v810-*-*)
1219 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1220 ;;
1221 vax-*-*)
1222 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1223 ;;
1224 esac
1225
1226 # If we aren't building newlib, then don't build libgloss, since libgloss
1227 # depends upon some newlib header files.
1228 case "${noconfigdirs}" in
1229 *target-libgloss*) ;;
1230 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1231 esac
1232
1233 # Work in distributions that contain no compiler tools, like Autoconf.
1234 host_makefile_frag=/dev/null
1235 if test -d ${srcdir}/config ; then
1236 case "${host}" in
1237 i[[3456789]]86-*-msdosdjgpp*)
1238 host_makefile_frag="config/mh-djgpp"
1239 ;;
1240 *-cygwin*)
1241 ACX_CHECK_CYGWIN_CAT_WORKS
1242 host_makefile_frag="config/mh-cygwin"
1243 ;;
1244 *-mingw*)
1245 host_makefile_frag="config/mh-mingw"
1246 ;;
1247 alpha*-linux*)
1248 host_makefile_frag="config/mh-alpha-linux"
1249 ;;
1250 hppa*-hp-hpux10*)
1251 host_makefile_frag="config/mh-pa-hpux10"
1252 ;;
1253 hppa*-hp-hpux*)
1254 host_makefile_frag="config/mh-pa"
1255 ;;
1256 hppa*-*)
1257 host_makefile_frag="config/mh-pa"
1258 ;;
1259 *-*-darwin*)
1260 host_makefile_frag="config/mh-darwin"
1261 ;;
1262 powerpc-*-aix*)
1263 host_makefile_frag="config/mh-ppc-aix"
1264 ;;
1265 rs6000-*-aix*)
1266 host_makefile_frag="config/mh-ppc-aix"
1267 ;;
1268 esac
1269 fi
1270
1271 if test "${build}" != "${host}" ; then
1272 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1273 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1274 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1275 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1276 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1277 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1278 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1279 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1280 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1281 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1282 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1283 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1284 else
1285 AR_FOR_BUILD="\$(AR)"
1286 AS_FOR_BUILD="\$(AS)"
1287 CC_FOR_BUILD="\$(CC)"
1288 CXX_FOR_BUILD="\$(CXX)"
1289 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1290 GOC_FOR_BUILD="\$(GOC)"
1291 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1292 LD_FOR_BUILD="\$(LD)"
1293 NM_FOR_BUILD="\$(NM)"
1294 RANLIB_FOR_BUILD="\$(RANLIB)"
1295 WINDRES_FOR_BUILD="\$(WINDRES)"
1296 WINDMC_FOR_BUILD="\$(WINDMC)"
1297 fi
1298
1299 AC_PROG_CC
1300 AC_PROG_CXX
1301
1302 # We must set the default linker to the linker used by gcc for the correct
1303 # operation of libtool. If LD is not defined and we are using gcc, try to
1304 # set the LD default to the ld used by gcc.
1305 if test -z "$LD"; then
1306 if test "$GCC" = yes; then
1307 case $build in
1308 *-*-mingw*)
1309 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1310 *)
1311 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1312 esac
1313 case $gcc_prog_ld in
1314 # Accept absolute paths.
1315 [[\\/]* | [A-Za-z]:[\\/]*)]
1316 LD="$gcc_prog_ld" ;;
1317 esac
1318 fi
1319 fi
1320
1321 # Check whether -static-libstdc++ -static-libgcc is supported.
1322 have_static_libs=no
1323 if test "$GCC" = yes; then
1324 saved_LDFLAGS="$LDFLAGS"
1325
1326 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1327 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1328 AC_LANG_PUSH(C++)
1329 AC_LINK_IFELSE([
1330 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1331 #error -static-libstdc++ not implemented
1332 #endif
1333 int main() {}],
1334 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1335 [AC_MSG_RESULT([no])])
1336 AC_LANG_POP(C++)
1337
1338 LDFLAGS="$saved_LDFLAGS"
1339 fi
1340
1341 ACX_PROG_GNAT
1342 ACX_PROG_CMP_IGNORE_INITIAL
1343
1344 AC_ARG_ENABLE([bootstrap],
1345 [AS_HELP_STRING([--enable-bootstrap],
1346 [enable bootstrapping @<:@yes if native build@:>@])],,
1347 enable_bootstrap=default)
1348
1349 # Issue errors and warnings for invalid/strange bootstrap combinations.
1350 if test -r $srcdir/gcc/configure; then
1351 have_compiler=yes
1352 else
1353 have_compiler=no
1354 fi
1355
1356 case "$have_compiler:$host:$target:$enable_bootstrap" in
1357 *:*:*:no) ;;
1358
1359 # Default behavior. Enable bootstrap if we have a compiler
1360 # and we are in a native configuration.
1361 yes:$build:$build:default)
1362 enable_bootstrap=yes ;;
1363
1364 *:*:*:default)
1365 enable_bootstrap=no ;;
1366
1367 # We have a compiler and we are in a native configuration, bootstrap is ok
1368 yes:$build:$build:yes)
1369 ;;
1370
1371 # Other configurations, but we have a compiler. Assume the user knows
1372 # what he's doing.
1373 yes:*:*:yes)
1374 AC_MSG_WARN([trying to bootstrap a cross compiler])
1375 ;;
1376
1377 # No compiler: if they passed --enable-bootstrap explicitly, fail
1378 no:*:*:yes)
1379 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1380
1381 # Fail if wrong command line
1382 *)
1383 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1384 ;;
1385 esac
1386
1387 # When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1388 # C++98 compiler can still start the bootstrap.
1389 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1390 CXX="$CXX -std=gnu++98"
1391 fi
1392
1393 # Used for setting $lt_cv_objdir
1394 _LT_CHECK_OBJDIR
1395
1396 # Check for GMP, MPFR and MPC
1397 gmplibs="-lmpc -lmpfr -lgmp"
1398 gmpinc=
1399 have_gmp=no
1400
1401 # Specify a location for mpc
1402 # check for this first so it ends up on the link line before mpfr.
1403 AC_ARG_WITH(mpc,
1404 [AS_HELP_STRING([--with-mpc=PATH],
1405 [specify prefix directory for installed MPC package.
1406 Equivalent to --with-mpc-include=PATH/include
1407 plus --with-mpc-lib=PATH/lib])])
1408 AC_ARG_WITH(mpc-include,
1409 [AS_HELP_STRING([--with-mpc-include=PATH],
1410 [specify directory for installed MPC include files])])
1411 AC_ARG_WITH(mpc-lib,
1412 [AS_HELP_STRING([--with-mpc-lib=PATH],
1413 [specify directory for the installed MPC library])])
1414
1415 if test "x$with_mpc" != x; then
1416 gmplibs="-L$with_mpc/lib $gmplibs"
1417 gmpinc="-I$with_mpc/include $gmpinc"
1418 fi
1419 if test "x$with_mpc_include" != x; then
1420 gmpinc="-I$with_mpc_include $gmpinc"
1421 fi
1422 if test "x$with_mpc_lib" != x; then
1423 gmplibs="-L$with_mpc_lib $gmplibs"
1424 fi
1425 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1426 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1427 gmpinc='-I$$s/mpc/src '"$gmpinc"
1428 # Do not test the mpc version. Assume that it is sufficient, since
1429 # it is in the source tree, and the library has not been built yet
1430 # but it would be included on the link line in the version check below
1431 # hence making the test fail.
1432 have_gmp=yes
1433 fi
1434
1435 # Specify a location for mpfr
1436 # check for this first so it ends up on the link line before gmp.
1437 AC_ARG_WITH(mpfr-dir,
1438 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1439 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1440 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1441
1442 AC_ARG_WITH(mpfr,
1443 [AS_HELP_STRING([--with-mpfr=PATH],
1444 [specify prefix directory for installed MPFR package.
1445 Equivalent to --with-mpfr-include=PATH/include
1446 plus --with-mpfr-lib=PATH/lib])])
1447 AC_ARG_WITH(mpfr-include,
1448 [AS_HELP_STRING([--with-mpfr-include=PATH],
1449 [specify directory for installed MPFR include files])])
1450 AC_ARG_WITH(mpfr-lib,
1451 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1452 [specify directory for the installed MPFR library])])
1453
1454 if test "x$with_mpfr" != x; then
1455 gmplibs="-L$with_mpfr/lib $gmplibs"
1456 gmpinc="-I$with_mpfr/include $gmpinc"
1457 fi
1458 if test "x$with_mpfr_include" != x; then
1459 gmpinc="-I$with_mpfr_include $gmpinc"
1460 fi
1461 if test "x$with_mpfr_lib" != x; then
1462 gmplibs="-L$with_mpfr_lib $gmplibs"
1463 fi
1464 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1465 # MPFR v3.1.0 moved the sources into a src sub-directory.
1466 if ! test -d ${srcdir}/mpfr/src; then
1467 AC_MSG_ERROR([dnl
1468 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1469 fi
1470 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1471 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1472 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1473 # Do not test the mpfr version. Assume that it is sufficient, since
1474 # it is in the source tree, and the library has not been built yet
1475 # but it would be included on the link line in the version check below
1476 # hence making the test fail.
1477 have_gmp=yes
1478 fi
1479
1480 # Specify a location for gmp
1481 AC_ARG_WITH(gmp-dir,
1482 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1483 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1484 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1485
1486 AC_ARG_WITH(gmp,
1487 [AS_HELP_STRING([--with-gmp=PATH],
1488 [specify prefix directory for the installed GMP package.
1489 Equivalent to --with-gmp-include=PATH/include
1490 plus --with-gmp-lib=PATH/lib])])
1491 AC_ARG_WITH(gmp-include,
1492 [AS_HELP_STRING([--with-gmp-include=PATH],
1493 [specify directory for installed GMP include files])])
1494 AC_ARG_WITH(gmp-lib,
1495 [AS_HELP_STRING([--with-gmp-lib=PATH],
1496 [specify directory for the installed GMP library])])
1497
1498
1499 if test "x$with_gmp" != x; then
1500 gmplibs="-L$with_gmp/lib $gmplibs"
1501 gmpinc="-I$with_gmp/include $gmpinc"
1502 fi
1503 if test "x$with_gmp_include" != x; then
1504 gmpinc="-I$with_gmp_include $gmpinc"
1505 fi
1506 if test "x$with_gmp_lib" != x; then
1507 gmplibs="-L$with_gmp_lib $gmplibs"
1508 fi
1509 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1510 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1511 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1512 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1513 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1514 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1515 # Do not test the gmp version. Assume that it is sufficient, since
1516 # it is in the source tree, and the library has not been built yet
1517 # but it would be included on the link line in the version check below
1518 # hence making the test fail.
1519 have_gmp=yes
1520 fi
1521
1522 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1523 have_gmp=yes
1524 saved_CFLAGS="$CFLAGS"
1525 CFLAGS="$CFLAGS $gmpinc"
1526 # Check for the recommended and required versions of GMP.
1527 AC_MSG_CHECKING([for the correct version of gmp.h])
1528 AC_TRY_COMPILE([#include "gmp.h"],[
1529 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1530 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1531 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1532 choke me
1533 #endif
1534 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1535 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1536 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1537 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1538 choke me
1539 #endif
1540 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1541 [AC_MSG_RESULT([no]); have_gmp=no])
1542
1543 # If we have GMP, check the MPFR version.
1544 if test x"$have_gmp" = xyes; then
1545 # Check for the recommended and required versions of MPFR.
1546 AC_MSG_CHECKING([for the correct version of mpfr.h])
1547 AC_TRY_COMPILE([#include <gmp.h>
1548 #include <mpfr.h>],[
1549 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1550 choke me
1551 #endif
1552 ], [AC_TRY_COMPILE([#include <gmp.h>
1553 #include <mpfr.h>],[
1554 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1555 choke me
1556 #endif
1557 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1558 [AC_MSG_RESULT([no]); have_gmp=no])
1559 fi
1560
1561 # Check for the MPC header version.
1562 if test x"$have_gmp" = xyes ; then
1563 # Check for the recommended and required versions of MPC.
1564 AC_MSG_CHECKING([for the correct version of mpc.h])
1565 AC_TRY_COMPILE([#include <mpc.h>],[
1566 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1567 choke me
1568 #endif
1569 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1570 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1571 choke me
1572 #endif
1573 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1574 [AC_MSG_RESULT([no]); have_gmp=no])
1575 fi
1576
1577 # Now check the MPFR library.
1578 if test x"$have_gmp" = xyes; then
1579 saved_LIBS="$LIBS"
1580 LIBS="$LIBS $gmplibs"
1581 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1582 AC_TRY_LINK([#include <mpc.h>],[
1583 mpfr_t n;
1584 mpfr_t x;
1585 mpc_t c;
1586 int t;
1587 mpfr_init (n);
1588 mpfr_init (x);
1589 mpfr_atan2 (n, n, x, GMP_RNDN);
1590 mpfr_erfc (n, x, GMP_RNDN);
1591 mpfr_subnormalize (x, t, GMP_RNDN);
1592 mpfr_clear(n);
1593 mpfr_clear(x);
1594 mpc_init2 (c, 53);
1595 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1596 mpc_cosh (c, c, MPC_RNDNN);
1597 mpc_pow (c, c, c, MPC_RNDNN);
1598 mpc_acosh (c, c, MPC_RNDNN);
1599 mpc_clear (c);
1600 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1601 LIBS="$saved_LIBS"
1602 fi
1603
1604 CFLAGS="$saved_CFLAGS"
1605
1606 # The library versions listed in the error message below should match
1607 # the HARD-minimums enforced above.
1608 if test x$have_gmp != xyes; then
1609 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1610 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1611 their locations. Source code for these libraries can be found at
1612 their respective hosting sites as well as at
1613 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1614 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1615 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1616 make sure that you have installed both the libraries and the header
1617 files. They may be located in separate packages.])
1618 fi
1619 fi
1620
1621 # Flags needed for both GMP, MPFR and/or MPC.
1622 AC_SUBST(gmplibs)
1623 AC_SUBST(gmpinc)
1624 AC_SUBST(extra_mpfr_configure_flags)
1625 AC_SUBST(extra_mpc_gmp_configure_flags)
1626 AC_SUBST(extra_mpc_mpfr_configure_flags)
1627 AC_SUBST(extra_isl_gmp_configure_flags)
1628
1629 # Libraries to use for stage1 or when not bootstrapping.
1630 AC_ARG_WITH(stage1-libs,
1631 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1632 [if test "$withval" = "no" -o "$withval" = "yes"; then
1633 stage1_libs=
1634 else
1635 stage1_libs=$withval
1636 fi],
1637 [stage1_libs=])
1638 AC_SUBST(stage1_libs)
1639
1640 # Linker flags to use for stage1 or when not bootstrapping.
1641 AC_ARG_WITH(stage1-ldflags,
1642 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1643 [if test "$withval" = "no" -o "$withval" = "yes"; then
1644 stage1_ldflags=
1645 else
1646 stage1_ldflags=$withval
1647 fi],
1648 [stage1_ldflags=
1649 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1650 # if supported. But if the user explicitly specified the libraries to use,
1651 # trust that they are doing what they want.
1652 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1653 stage1_ldflags="-static-libstdc++ -static-libgcc"
1654 fi])
1655 AC_SUBST(stage1_ldflags)
1656
1657 # Libraries to use for stage2 and later builds.
1658 AC_ARG_WITH(boot-libs,
1659 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1660 [if test "$withval" = "no" -o "$withval" = "yes"; then
1661 poststage1_libs=
1662 else
1663 poststage1_libs=$withval
1664 fi],
1665 [poststage1_libs=])
1666 AC_SUBST(poststage1_libs)
1667
1668 # Linker flags to use for stage2 and later builds.
1669 AC_ARG_WITH(boot-ldflags,
1670 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1671 [linker flags for stage2 and later])],
1672 [if test "$withval" = "no" -o "$withval" = "yes"; then
1673 poststage1_ldflags=
1674 else
1675 poststage1_ldflags=$withval
1676 fi],
1677 [poststage1_ldflags=
1678 # In stages 2 and 3, default to linking libstdc++ and libgcc
1679 # statically. But if the user explicitly specified the libraries to
1680 # use, trust that they are doing what they want.
1681 if test "$poststage1_libs" = ""; then
1682 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1683 fi])
1684 AC_SUBST(poststage1_ldflags)
1685
1686 # GCC GRAPHITE dependency isl.
1687 # Basic setup is inlined here, actual checks are in config/isl.m4
1688
1689 AC_ARG_WITH(isl,
1690 [AS_HELP_STRING(
1691 [--with-isl=PATH],
1692 [Specify prefix directory for the installed isl package.
1693 Equivalent to --with-isl-include=PATH/include
1694 plus --with-isl-lib=PATH/lib])])
1695
1696 # Treat --without-isl as a request to disable
1697 # GRAPHITE support and skip all following checks.
1698 if test "x$with_isl" != "xno"; then
1699 # Check for isl
1700 dnl Provide configure switches and initialize islinc & isllibs
1701 dnl with user input.
1702 ISL_INIT_FLAGS
1703 dnl The versions of isl that work for Graphite
1704 ISL_CHECK_VERSION()
1705 dnl Only execute fail-action, if isl has been requested.
1706 ISL_IF_FAILED([
1707 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1708 fi
1709
1710 # If the isl check failed, disable builds of in-tree variant of isl
1711 if test "x$with_isl" = xno ||
1712 test "x$gcc_cv_isl" = xno; then
1713 noconfigdirs="$noconfigdirs isl"
1714 islinc=
1715 fi
1716
1717 AC_SUBST(isllibs)
1718 AC_SUBST(islinc)
1719
1720 # Check for LTO support.
1721 AC_ARG_ENABLE(lto,
1722 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1723 enable_lto=$enableval,
1724 enable_lto=yes; default_enable_lto=yes)
1725
1726 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1727 build_lto_plugin=yes
1728 ],[if test x"$default_enable_lto" = x"yes" ; then
1729 case $target in
1730 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1731 # On other non-ELF platforms, LTO has yet to be validated.
1732 *) enable_lto=no ;;
1733 esac
1734 else
1735 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1736 # It would also be nice to check the binutils support, but we don't
1737 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1738 # warn during gcc/ subconfigure; unless you're bootstrapping with
1739 # -flto it won't be needed until after installation anyway.
1740 case $target in
1741 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1742 *) if test x"$enable_lto" = x"yes"; then
1743 AC_MSG_ERROR([LTO support is not enabled for this target.])
1744 fi
1745 ;;
1746 esac
1747 fi
1748 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1749 # Build it unless LTO was explicitly disabled.
1750 case $target in
1751 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1752 *) ;;
1753 esac
1754 ])
1755
1756 AC_ARG_ENABLE(linker-plugin-configure-flags,
1757 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1758 [additional flags for configuring linker plugins @<:@none@:>@])],
1759 extra_linker_plugin_configure_flags=$enableval,
1760 extra_linker_plugin_configure_flags=)
1761 AC_SUBST(extra_linker_plugin_configure_flags)
1762 AC_ARG_ENABLE(linker-plugin-flags,
1763 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1764 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1765 extra_linker_plugin_flags=$enableval,
1766 extra_linker_plugin_flags=)
1767 AC_SUBST(extra_linker_plugin_flags)
1768
1769 # Enable --enable-host-shared.
1770 # Checked early to determine whether jit is an 'all' language
1771 AC_ARG_ENABLE(host-shared,
1772 [AS_HELP_STRING([--enable-host-shared],
1773 [build host code as shared libraries])],
1774 [host_shared=$enableval], [host_shared=no])
1775 AC_SUBST(host_shared)
1776
1777 # By default, C and C++ are the only stage 1 languages.
1778 stage1_languages=,c,
1779
1780 # Target libraries that we bootstrap.
1781 bootstrap_target_libs=,target-libgcc,
1782
1783 # Figure out what language subdirectories are present.
1784 # Look if the user specified --enable-languages="..."; if not, use
1785 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1786 # go away some day.
1787 # NB: embedded tabs in this IF block -- do not untabify
1788 if test -d ${srcdir}/gcc; then
1789 if test x"${enable_languages+set}" != xset; then
1790 if test x"${LANGUAGES+set}" = xset; then
1791 enable_languages="${LANGUAGES}"
1792 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1793 else
1794 enable_languages=default
1795 fi
1796 else
1797 if test x"${enable_languages}" = x ||
1798 test x"${enable_languages}" = xyes;
1799 then
1800 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1801 exit 1
1802 fi
1803 fi
1804 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1805
1806 # 'f95' is the old name for the 'fortran' language. We issue a warning
1807 # and make the substitution.
1808 case ,${enable_languages}, in
1809 *,f95,*)
1810 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1811 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1812 ;;
1813 esac
1814
1815 # If bootstrapping, C++ must be enabled.
1816 case ",$enable_languages,:$enable_bootstrap" in
1817 *,c++,*:*) ;;
1818 *:yes)
1819 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1820 enable_languages="${enable_languages},c++"
1821 else
1822 AC_MSG_ERROR([bootstrapping requires c++ sources])
1823 fi
1824 ;;
1825 esac
1826
1827 # First scan to see if an enabled language requires some other language.
1828 # We assume that a given config-lang.in will list all the language
1829 # front ends it requires, even if some are required indirectly.
1830 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1831 case ${lang_frag} in
1832 ..) ;;
1833 # The odd quoting in the next line works around
1834 # an apparent bug in bash 1.12 on linux.
1835 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1836 *)
1837 # From the config-lang.in, get $language, $lang_requires, and
1838 # $lang_requires_boot_languages.
1839 language=
1840 lang_requires=
1841 lang_requires_boot_languages=
1842 . ${lang_frag}
1843 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1844 case ,${enable_languages}, in
1845 *,$other,*) ;;
1846 *,default,*) ;;
1847 *,all,*) ;;
1848 *,$language,*)
1849 echo " \`$other' language required by \`$language'; enabling" 1>&2
1850 enable_languages="${enable_languages},${other}"
1851 ;;
1852 esac
1853 done
1854 for other in ${lang_requires_boot_languages} ; do
1855 if test "$other" != "c"; then
1856 case ,${enable_stage1_languages}, in
1857 *,$other,*) ;;
1858 *,default,*) ;;
1859 *,all,*) ;;
1860 *)
1861 case ,${enable_languages}, in
1862 *,$language,*)
1863 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1864 enable_stage1_languages="$enable_stage1_languages,${other}"
1865 ;;
1866 esac
1867 ;;
1868 esac
1869 fi
1870 done
1871 ;;
1872 esac
1873 done
1874
1875 new_enable_languages=,c,
1876
1877 # If LTO is enabled, add the LTO front end.
1878 if test "$enable_lto" = "yes" ; then
1879 case ,${enable_languages}, in
1880 *,lto,*) ;;
1881 *) enable_languages="${enable_languages},lto" ;;
1882 esac
1883 if test "${build_lto_plugin}" = "yes" ; then
1884 configdirs="$configdirs lto-plugin"
1885 fi
1886 fi
1887
1888 # If we're building an offloading compiler, add the LTO front end.
1889 if test x"$enable_as_accelerator_for" != x ; then
1890 case ,${enable_languages}, in
1891 *,lto,*) ;;
1892 *) enable_languages="${enable_languages},lto" ;;
1893 esac
1894 fi
1895
1896 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
1897 potential_languages=,c,
1898
1899 enabled_target_libs=
1900 disabled_target_libs=
1901
1902 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1903 case ${lang_frag} in
1904 ..) ;;
1905 # The odd quoting in the next line works around
1906 # an apparent bug in bash 1.12 on linux.
1907 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1908 *)
1909 # From the config-lang.in, get $language, $target_libs,
1910 # $lang_dirs, $boot_language, and $build_by_default
1911 language=
1912 target_libs=
1913 lang_dirs=
1914 subdir_requires=
1915 boot_language=no
1916 build_by_default=yes
1917 . ${lang_frag}
1918 if test x${language} = x; then
1919 echo "${lang_frag} doesn't set \$language." 1>&2
1920 exit 1
1921 fi
1922
1923 if test "$language" = "c++"; then
1924 boot_language=yes
1925 fi
1926
1927 add_this_lang=no
1928 # C is always enabled, so no need to add it again
1929 if test "$language" != "c"; then
1930 case ,${enable_languages}, in
1931 *,${language},*)
1932 # Language was explicitly selected; include it
1933 add_this_lang=yes
1934 ;;
1935 *,all,*)
1936 # All languages are enabled
1937 add_this_lang=all
1938 ;;
1939 *,default,*)
1940 # 'default' was selected, select it if it is a default language
1941 add_this_lang=${build_by_default}
1942 ;;
1943 esac
1944 fi
1945
1946 # Disable languages that need other directories if these aren't available.
1947 for i in $subdir_requires; do
1948 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1949 case ${add_this_lang} in
1950 yes)
1951 # Specifically requested language; tell them.
1952 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1953 ;;
1954 all)
1955 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
1956 add_this_lang=unsupported
1957 ;;
1958 *)
1959 # Silently disable.
1960 add_this_lang=unsupported
1961 ;;
1962 esac
1963 done
1964
1965 # Disable Ada if no preexisting GNAT is available.
1966 case ${add_this_lang}:${language}:${have_gnat} in
1967 yes:ada:no)
1968 # Specifically requested language; tell them.
1969 AC_MSG_ERROR([GNAT is required to build $language])
1970 ;;
1971 all:ada:no)
1972 AC_MSG_WARN([GNAT is required to build $language])
1973 add_this_lang=unsupported
1974 ;;
1975 *:ada:no)
1976 # Silently disable.
1977 add_this_lang=unsupported
1978 ;;
1979 esac
1980
1981 # Disable jit if -enable-host-shared not specified
1982 case ${add_this_lang}:${language}:${host_shared} in
1983 yes:jit:no)
1984 # PR jit/64780: explicitly specify --enable-host-shared
1985 AC_MSG_ERROR([
1986 Enabling language "jit" requires --enable-host-shared.
1987
1988 --enable-host-shared typically slows the rest of the compiler down by
1989 a few %, so you must explicitly enable it.
1990
1991 If you want to build both the jit and the regular compiler, it is often
1992 best to do this via two separate configure/builds, in separate
1993 directories, to avoid imposing the performance cost of
1994 --enable-host-shared on the regular compiler.])
1995 ;;
1996 all:jit:no)
1997 AC_MSG_WARN([--enable-host-shared required to build $language])
1998 add_this_lang=unsupported
1999 ;;
2000 *:jit:no)
2001 # Silently disable.
2002 add_this_lang=unsupported
2003 ;;
2004 esac
2005
2006 # Disable a language that is unsupported by the target.
2007 case "${add_this_lang}: $unsupported_languages " in
2008 no:*) ;;
2009 unsupported:*) ;;
2010 *:*" $language "*)
2011 AC_MSG_WARN([${language} not supported for this target])
2012 add_this_lang=unsupported
2013 ;;
2014 esac
2015
2016 case $add_this_lang in
2017 unsupported)
2018 # Remove language-dependent dirs.
2019 disabled_target_libs="$disabled_target_libs $target_libs"
2020 noconfigdirs="$noconfigdirs $lang_dirs"
2021 ;;
2022 no)
2023 # Remove language-dependent dirs; still show language as supported.
2024 disabled_target_libs="$disabled_target_libs $target_libs"
2025 noconfigdirs="$noconfigdirs $lang_dirs"
2026 potential_languages="${potential_languages}${language},"
2027 ;;
2028 all|yes)
2029 new_enable_languages="${new_enable_languages}${language},"
2030 potential_languages="${potential_languages}${language},"
2031 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2032 enabled_target_libs="$enabled_target_libs $target_libs"
2033 case "${boot_language}:,$enable_stage1_languages," in
2034 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2035 # Add to (comma-separated) list of stage 1 languages.
2036 case ",$stage1_languages," in
2037 *,$language,* | ,yes, | ,all,) ;;
2038 *) stage1_languages="${stage1_languages}${language}," ;;
2039 esac
2040 # We need to bootstrap any supporting libraries.
2041 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2042 ;;
2043 esac
2044 ;;
2045 esac
2046 ;;
2047 esac
2048 done
2049
2050 # Add target libraries which are only needed for disabled languages
2051 # to noconfigdirs.
2052 if test -n "$disabled_target_libs"; then
2053 for dir in $disabled_target_libs; do
2054 case " $enabled_target_libs " in
2055 *" ${dir} "*) ;;
2056 *) noconfigdirs="$noconfigdirs $dir" ;;
2057 esac
2058 done
2059 fi
2060
2061 AC_ARG_ENABLE(stage1-languages,
2062 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2063 [choose additional languages to build during
2064 stage1. Mostly useful for compiler development])],
2065 [case ,${enable_stage1_languages}, in
2066 ,no,|,,)
2067 # Set it to something that will have no effect in the loop below
2068 enable_stage1_languages=c ;;
2069 ,yes,)
2070 enable_stage1_languages=`echo $new_enable_languages | \
2071 sed -e "s/^,//" -e "s/,$//" ` ;;
2072 *,all,*)
2073 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2074 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2075 esac
2076
2077 # Add "good" languages from enable_stage1_languages to stage1_languages,
2078 # while "bad" languages go in missing_languages. Leave no duplicates.
2079 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2080 case $potential_languages in
2081 *,$i,*)
2082 case $stage1_languages in
2083 *,$i,*) ;;
2084 *) stage1_languages="$stage1_languages$i," ;;
2085 esac ;;
2086 *)
2087 case $missing_languages in
2088 *,$i,*) ;;
2089 *) missing_languages="$missing_languages$i," ;;
2090 esac ;;
2091 esac
2092 done])
2093
2094 # Remove leading/trailing commas that were added for simplicity
2095 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2096 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2097 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2098 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2099
2100 if test "x$missing_languages" != x; then
2101 AC_MSG_ERROR([
2102 The following requested languages could not be built: ${missing_languages}
2103 Supported languages are: ${potential_languages}])
2104 fi
2105 if test "x$new_enable_languages" != "x$enable_languages"; then
2106 echo The following languages will be built: ${new_enable_languages}
2107 enable_languages="$new_enable_languages"
2108 fi
2109
2110 AC_SUBST(stage1_languages)
2111 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2112 fi
2113
2114 # Handle --disable-<component> generically.
2115 for dir in $configdirs $build_configdirs $target_configdirs ; do
2116 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2117 varname=`echo $dirname | sed -e s/+/_/g`
2118 if eval test x\${enable_${varname}} "=" xno ; then
2119 noconfigdirs="$noconfigdirs $dir"
2120 fi
2121 done
2122
2123 # Check for Boehm's garbage collector
2124 AC_ARG_ENABLE(objc-gc,
2125 [AS_HELP_STRING([--enable-objc-gc],
2126 [enable use of Boehm's garbage collector with the
2127 GNU Objective-C runtime])])
2128 AC_ARG_WITH([target-bdw-gc],
2129 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2130 [specify prefix directory for installed bdw-gc package.
2131 Equivalent to --with-target-bdw-gc-include=PATH/include
2132 plus --with-target-bdw-gc-lib=PATH/lib])])
2133 AC_ARG_WITH([target-bdw-gc-include],
2134 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2135 [specify directories for installed bdw-gc include files])])
2136 AC_ARG_WITH([target-bdw-gc-lib],
2137 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2138 [specify directories for installed bdw-gc library])])
2139
2140 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2141 AC_MSG_CHECKING([for bdw garbage collector])
2142 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2143 dnl no bdw-gw options, assume default locations
2144 AC_MSG_RESULT([using bdw-gc in default locations])
2145 else
2146 dnl bdw-gw options, first error checking, complete checking in libobjc
2147 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2148 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2149 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2150 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2151 else
2152 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2153 fi
2154 fi
2155 esac
2156
2157 # Disable libcilkrts, libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2158 case ,${enable_languages}, in
2159 *,c++,*)
2160 # Disable libcilkrts, libitm, libsanitizer if we're not building libstdc++
2161 case "${noconfigdirs}" in
2162 *target-libstdc++-v3*)
2163 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer"
2164 ;;
2165 *) ;;
2166 esac
2167 ;;
2168 *)
2169 noconfigdirs="$noconfigdirs target-libcilkrts target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2170 ;;
2171 esac
2172
2173 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2174 # $build_configdirs and $target_configdirs.
2175 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2176
2177 notsupp=""
2178 for dir in . $skipdirs $noconfigdirs ; do
2179 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2180 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2181 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2182 if test -r $srcdir/$dirname/configure ; then
2183 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2184 true
2185 else
2186 notsupp="$notsupp $dir"
2187 fi
2188 fi
2189 fi
2190 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2191 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2192 if test -r $srcdir/$dirname/configure ; then
2193 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2194 true
2195 else
2196 notsupp="$notsupp $dir"
2197 fi
2198 fi
2199 fi
2200 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2201 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2202 if test -r $srcdir/$dirname/configure ; then
2203 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2204 true
2205 else
2206 notsupp="$notsupp $dir"
2207 fi
2208 fi
2209 fi
2210 done
2211
2212 # Quietly strip out all directories which aren't configurable in this tree.
2213 # This relies on all configurable subdirectories being autoconfiscated, which
2214 # is now the case.
2215 build_configdirs_all="$build_configdirs"
2216 build_configdirs=
2217 for i in ${build_configdirs_all} ; do
2218 j=`echo $i | sed -e s/build-//g`
2219 if test -f ${srcdir}/$j/configure ; then
2220 build_configdirs="${build_configdirs} $i"
2221 fi
2222 done
2223
2224 configdirs_all="$configdirs"
2225 configdirs=
2226 for i in ${configdirs_all} ; do
2227 if test -f ${srcdir}/$i/configure ; then
2228 configdirs="${configdirs} $i"
2229 fi
2230 done
2231
2232 target_configdirs_all="$target_configdirs"
2233 target_configdirs=
2234 for i in ${target_configdirs_all} ; do
2235 j=`echo $i | sed -e s/target-//g`
2236 if test -f ${srcdir}/$j/configure ; then
2237 target_configdirs="${target_configdirs} $i"
2238 fi
2239 done
2240
2241 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2242 # so we have to add it after the preceding checks.
2243 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2244 then
2245 case " $configdirs " in
2246 *" libiberty "*)
2247 # If we can build libiberty, we can also build libiberty-linker-plugin.
2248 configdirs="$configdirs libiberty-linker-plugin"
2249 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2250 --with-libiberty=../libiberty-linker-plugin";;
2251 *)
2252 AC_MSG_ERROR([libiberty missing]);;
2253 esac
2254 fi
2255
2256 # Sometimes we have special requirements for the host libiberty.
2257 extra_host_libiberty_configure_flags=
2258 extra_host_zlib_configure_flags=
2259 case " $configdirs " in
2260 *" lto-plugin "* | *" libcc1 "*)
2261 # When these are to be built as shared libraries, the same applies to
2262 # libiberty.
2263 extra_host_libiberty_configure_flags=--enable-shared
2264 ;;
2265 *" bfd "*)
2266 # When bfd is to be built as a shared library, the same applies to
2267 # zlib.
2268 if test "$enable_shared" = "yes"; then
2269 extra_host_zlib_configure_flags=--enable-host-shared
2270 fi
2271 ;;
2272 esac
2273 AC_SUBST(extra_host_libiberty_configure_flags)
2274 AC_SUBST(extra_host_zlib_configure_flags)
2275
2276 # Produce a warning message for the subdirs we can't configure.
2277 # This isn't especially interesting in the Cygnus tree, but in the individual
2278 # FSF releases, it's important to let people know when their machine isn't
2279 # supported by the one or two programs in a package.
2280
2281 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2282 # If $appdirs is non-empty, at least one of those directories must still
2283 # be configured, or we error out. (E.g., if the gas release supports a
2284 # specified target in some subdirs but not the gas subdir, we shouldn't
2285 # pretend that all is well.)
2286 if test -n "$appdirs" ; then
2287 for dir in $appdirs ; do
2288 if test -r $dir/Makefile.in ; then
2289 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2290 appdirs=""
2291 break
2292 fi
2293 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2294 appdirs=""
2295 break
2296 fi
2297 fi
2298 done
2299 if test -n "$appdirs" ; then
2300 echo "*** This configuration is not supported by this package." 1>&2
2301 exit 1
2302 fi
2303 fi
2304 # Okay, some application will build, or we don't care to check. Still
2305 # notify of subdirs not getting built.
2306 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2307 echo " ${notsupp}" 1>&2
2308 echo " (Any other directories should still work fine.)" 1>&2
2309 fi
2310
2311 case "$host" in
2312 *msdosdjgpp*)
2313 enable_gdbtk=no ;;
2314 esac
2315
2316 # To find our prefix, in gcc_cv_tool_prefix.
2317 ACX_TOOL_DIRS
2318
2319 copy_dirs=
2320
2321 AC_ARG_WITH([build-sysroot],
2322 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2323 [use sysroot as the system root during the build])],
2324 [if test x"$withval" != x ; then
2325 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2326 fi],
2327 [SYSROOT_CFLAGS_FOR_TARGET=])
2328 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2329
2330 AC_ARG_WITH([debug-prefix-map],
2331 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2332 [map A to B, C to D ... in debug information])],
2333 [if test x"$withval" != x; then
2334 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2335 for debug_map in $withval; do
2336 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2337 done
2338 fi],
2339 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2340 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2341
2342 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2343 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2344 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2345 # We want to ensure that TARGET libraries (which we know are built with
2346 # gcc) are built with "-O2 -g", so include those options when setting
2347 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2348 if test "x$CFLAGS_FOR_TARGET" = x; then
2349 if test "x${is_cross_compiler}" = xyes; then
2350 CFLAGS_FOR_TARGET="-g -O2"
2351 else
2352 CFLAGS_FOR_TARGET=$CFLAGS
2353 case " $CFLAGS " in
2354 *" -O2 "*) ;;
2355 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2356 esac
2357 case " $CFLAGS " in
2358 *" -g "* | *" -g3 "*) ;;
2359 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2360 esac
2361 fi
2362 fi
2363 AC_SUBST(CFLAGS_FOR_TARGET)
2364
2365 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2366 if test "x${is_cross_compiler}" = xyes; then
2367 CXXFLAGS_FOR_TARGET="-g -O2"
2368 else
2369 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2370 case " $CXXFLAGS " in
2371 *" -O2 "*) ;;
2372 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2373 esac
2374 case " $CXXFLAGS " in
2375 *" -g "* | *" -g3 "*) ;;
2376 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2377 esac
2378 fi
2379 fi
2380 AC_SUBST(CXXFLAGS_FOR_TARGET)
2381
2382 AC_SUBST(LDFLAGS_FOR_TARGET)
2383
2384 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2385 # the named directory are copied to $(tooldir)/sys-include.
2386 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2387 if test x${is_cross_compiler} = xno ; then
2388 echo 1>&2 '***' --with-headers is only supported when cross compiling
2389 exit 1
2390 fi
2391 if test x"${with_headers}" != xyes ; then
2392 x=${gcc_cv_tool_prefix}
2393 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2394 fi
2395 fi
2396
2397 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2398 # the name directories are copied to $(tooldir)/lib. Multiple directories
2399 # are permitted.
2400 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2401 if test x${is_cross_compiler} = xno ; then
2402 echo 1>&2 '***' --with-libs is only supported when cross compiling
2403 exit 1
2404 fi
2405 if test x"${with_libs}" != xyes ; then
2406 # Copy the libraries in reverse order, so that files in the first named
2407 # library override files in subsequent libraries.
2408 x=${gcc_cv_tool_prefix}
2409 for l in ${with_libs}; do
2410 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2411 done
2412 fi
2413 fi
2414
2415 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2416 #
2417 # This is done by determining whether or not the appropriate directory
2418 # is available, and by checking whether or not specific configurations
2419 # have requested that this magic not happen.
2420 #
2421 # The command line options always override the explicit settings in
2422 # configure.ac, and the settings in configure.ac override this magic.
2423 #
2424 # If the default for a toolchain is to use GNU as and ld, and you don't
2425 # want to do that, then you should use the --without-gnu-as and
2426 # --without-gnu-ld options for the configure script. Similarly, if
2427 # the default is to use the included zlib and you don't want to do that,
2428 # you should use the --with-system-zlib option for the configure script.
2429
2430 if test x${use_gnu_as} = x &&
2431 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2432 with_gnu_as=yes
2433 extra_host_args="$extra_host_args --with-gnu-as"
2434 fi
2435
2436 if test x${use_gnu_ld} = x &&
2437 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2438 with_gnu_ld=yes
2439 extra_host_args="$extra_host_args --with-gnu-ld"
2440 fi
2441
2442 if test x${use_included_zlib} = x &&
2443 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2444 :
2445 else
2446 with_system_zlib=yes
2447 extra_host_args="$extra_host_args --with-system-zlib"
2448 fi
2449
2450 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2451 # can detect this case.
2452
2453 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2454 with_newlib=yes
2455 extra_host_args="$extra_host_args --with-newlib"
2456 fi
2457
2458 # Handle ${copy_dirs}
2459 set fnord ${copy_dirs}
2460 shift
2461 while test $# != 0 ; do
2462 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2463 :
2464 else
2465 echo Copying $1 to $2
2466
2467 # Use the install script to create the directory and all required
2468 # parent directories.
2469 if test -d $2 ; then
2470 :
2471 else
2472 echo >config.temp
2473 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2474 fi
2475
2476 # Copy the directory, assuming we have tar.
2477 # FIXME: Should we use B in the second tar? Not all systems support it.
2478 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2479
2480 # It is the responsibility of the user to correctly adjust all
2481 # symlinks. If somebody can figure out how to handle them correctly
2482 # here, feel free to add the code.
2483
2484 echo $1 > $2/COPIED
2485 fi
2486 shift; shift
2487 done
2488
2489 # Determine a target-dependent exec_prefix that the installed
2490 # gcc will search in. Keep this list sorted by triplet, with
2491 # the *-*-osname triplets last.
2492 md_exec_prefix=
2493 case "${target}" in
2494 i[[34567]]86-pc-msdosdjgpp*)
2495 md_exec_prefix=/dev/env/DJDIR/bin
2496 ;;
2497 *-*-hpux* | \
2498 *-*-nto-qnx* | \
2499 *-*-solaris2*)
2500 md_exec_prefix=/usr/ccs/bin
2501 ;;
2502 esac
2503
2504 extra_arflags_for_target=
2505 extra_nmflags_for_target=
2506 extra_ranlibflags_for_target=
2507 target_makefile_frag=/dev/null
2508 case "${target}" in
2509 spu-*-*)
2510 target_makefile_frag="config/mt-spu"
2511 ;;
2512 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2513 target_makefile_frag="config/mt-sde"
2514 ;;
2515 mipsisa*-*-elfoabi*)
2516 target_makefile_frag="config/mt-mips-elfoabi"
2517 ;;
2518 mips*-*-*linux* | mips*-*-gnu*)
2519 target_makefile_frag="config/mt-mips-gnu"
2520 ;;
2521 nios2-*-elf*)
2522 target_makefile_frag="config/mt-nios2-elf"
2523 ;;
2524 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2525 target_makefile_frag="config/mt-gnu"
2526 ;;
2527 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2528 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2529 # commands to handle both 32-bit and 64-bit objects. These flags are
2530 # harmless if we're using GNU nm or ar.
2531 extra_arflags_for_target=" -X32_64"
2532 extra_nmflags_for_target=" -B -X32_64"
2533 ;;
2534 esac
2535
2536 alphaieee_frag=/dev/null
2537 case $target in
2538 alpha*-*-*)
2539 # This just makes sure to use the -mieee option to build target libs.
2540 # This should probably be set individually by each library.
2541 alphaieee_frag="config/mt-alphaieee"
2542 ;;
2543 esac
2544
2545 # If --enable-target-optspace always use -Os instead of -O2 to build
2546 # the target libraries, similarly if it is not specified, use -Os
2547 # on selected platforms.
2548 ospace_frag=/dev/null
2549 case "${enable_target_optspace}:${target}" in
2550 yes:*)
2551 ospace_frag="config/mt-ospace"
2552 ;;
2553 :d30v-*)
2554 ospace_frag="config/mt-d30v"
2555 ;;
2556 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2557 ospace_frag="config/mt-ospace"
2558 ;;
2559 no:* | :*)
2560 ;;
2561 *)
2562 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2563 ;;
2564 esac
2565
2566 # Some systems (e.g., one of the i386-aix systems the gas testers are
2567 # using) don't handle "\$" correctly, so don't use it here.
2568 tooldir='${exec_prefix}'/${target_noncanonical}
2569 build_tooldir=${tooldir}
2570
2571 # Create a .gdbinit file which runs the one in srcdir
2572 # and tells GDB to look there for source files.
2573
2574 if test -r ${srcdir}/.gdbinit ; then
2575 case ${srcdir} in
2576 .) ;;
2577 *) cat > ./.gdbinit <<EOF
2578 # ${NO_EDIT}
2579 dir ${srcdir}
2580 dir .
2581 source ${srcdir}/.gdbinit
2582 EOF
2583 ;;
2584 esac
2585 fi
2586
2587 # Make sure that the compiler is able to generate an executable. If it
2588 # can't, we are probably in trouble. We don't care whether we can run the
2589 # executable--we might be using a cross compiler--we only care whether it
2590 # can be created. At this point the main configure script has set CC.
2591 we_are_ok=no
2592 echo "int main () { return 0; }" > conftest.c
2593 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2594 if test $? = 0 ; then
2595 if test -s conftest || test -s conftest.exe ; then
2596 we_are_ok=yes
2597 fi
2598 fi
2599 case $we_are_ok in
2600 no)
2601 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2602 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2603 rm -f conftest*
2604 exit 1
2605 ;;
2606 esac
2607 rm -f conftest*
2608
2609 # Decide which environment variable is used to find dynamic libraries.
2610 case "${host}" in
2611 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2612 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2613 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2614 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2615 esac
2616
2617 # On systems where the dynamic library environment variable is PATH,
2618 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2619 # built executables to PATH.
2620 if test "$RPATH_ENVVAR" = PATH; then
2621 GCC_SHLIB_SUBDIR=/shlib
2622 else
2623 GCC_SHLIB_SUBDIR=
2624 fi
2625
2626 # Adjust the toplevel makefile according to whether bootstrap was selected.
2627 case $enable_bootstrap in
2628 yes)
2629 bootstrap_suffix=bootstrap
2630 BUILD_CONFIG=bootstrap-debug
2631 ;;
2632 no)
2633 bootstrap_suffix=no-bootstrap
2634 BUILD_CONFIG=
2635 ;;
2636 esac
2637
2638 AC_MSG_CHECKING(for default BUILD_CONFIG)
2639
2640 AC_ARG_WITH([build-config],
2641 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2642 [use config/NAME.mk build configuration])],
2643 [case $with_build_config in
2644 yes) with_build_config= ;;
2645 no) with_build_config= BUILD_CONFIG= ;;
2646 esac])
2647
2648 if test "x${with_build_config}" != x; then
2649 BUILD_CONFIG=$with_build_config
2650 else
2651 case $BUILD_CONFIG in
2652 bootstrap-debug)
2653 if echo "int f (void) { return 0; }" > conftest.c &&
2654 ${CC} -c conftest.c &&
2655 mv conftest.o conftest.o.g0 &&
2656 ${CC} -c -g conftest.c &&
2657 mv conftest.o conftest.o.g &&
2658 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2659 :
2660 else
2661 BUILD_CONFIG=
2662 fi
2663 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2664 ;;
2665 esac
2666 fi
2667 AC_MSG_RESULT($BUILD_CONFIG)
2668 AC_SUBST(BUILD_CONFIG)
2669
2670 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2671 AC_MSG_CHECKING([for --enable-vtable-verify])
2672 AC_ARG_ENABLE(vtable-verify,
2673 [AS_HELP_STRING([--enable-vtable-verify],
2674 [Enable vtable verification feature])],
2675 [case "$enableval" in
2676 yes) enable_vtable_verify=yes ;;
2677 no) enable_vtable_verify=no ;;
2678 *) enable_vtable_verify=no;;
2679 esac],
2680 [enable_vtable_verify=no])
2681 AC_MSG_RESULT($enable_vtable_verify)
2682
2683 # Record target_configdirs and the configure arguments for target and
2684 # build configuration in Makefile.
2685 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2686 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2687 bootstrap_fixincludes=no
2688
2689 # If we are building libgomp, bootstrap it.
2690 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2691 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2692 fi
2693
2694 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2695 # or bootstrap-ubsan, bootstrap it.
2696 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2697 case "$BUILD_CONFIG" in
2698 *bootstrap-asan* | *bootstrap-ubsan* )
2699 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2700 bootstrap_fixincludes=yes
2701 ;;
2702 esac
2703 fi
2704
2705 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2706 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2707 test "$enable_vtable_verify" != no; then
2708 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2709 fi
2710
2711 # If we are building libmpx and $BUILD_CONFIG contains bootstrap-mpx,
2712 # bootstrap it.
2713 if echo " ${target_configdirs} " | grep " libmpx " > /dev/null 2>&1; then
2714 case "$BUILD_CONFIG" in
2715 *bootstrap-mpx* )
2716 bootstrap_target_libs=${bootstrap_target_libs}target-libmpx,
2717 ;;
2718 esac
2719 fi
2720
2721 # Determine whether gdb needs tk/tcl or not.
2722 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2723 # and in that case we want gdb to be built without tk. Ugh!
2724 # In fact I believe gdb is the *only* package directly dependent on tk,
2725 # so we should be able to put the 'maybe's in unconditionally and
2726 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2727 # 100% sure that that's safe though.
2728
2729 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2730 case "$enable_gdbtk" in
2731 no)
2732 GDB_TK="" ;;
2733 yes)
2734 GDB_TK="${gdb_tk}" ;;
2735 *)
2736 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2737 # distro. Eventually someone will fix this and move Insight, nee
2738 # gdbtk to a separate directory.
2739 if test -d ${srcdir}/gdb/gdbtk ; then
2740 GDB_TK="${gdb_tk}"
2741 else
2742 GDB_TK=""
2743 fi
2744 ;;
2745 esac
2746 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2747 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2748
2749 # Strip out unwanted targets.
2750
2751 # While at that, we remove Makefiles if we were started for recursive
2752 # configuration, so that the top-level Makefile reconfigures them,
2753 # like we used to do when configure itself was recursive.
2754
2755 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2756 # but now we're fixing up the Makefile ourselves with the additional
2757 # commands passed to AC_CONFIG_FILES. Use separate variables
2758 # extrasub-{build,host,target} not because there is any reason to split
2759 # the substitutions up that way, but only to remain below the limit of
2760 # 99 commands in a script, for HP-UX sed.
2761 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2762
2763 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2764 yes:yes:*\ gold\ *:*,c++,*) ;;
2765 yes:yes:*\ gold\ *:*)
2766 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2767 ;;
2768 esac
2769
2770 extrasub_build=
2771 for module in ${build_configdirs} ; do
2772 if test -z "${no_recursion}" \
2773 && test -f ${build_subdir}/${module}/Makefile; then
2774 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2775 rm -f ${build_subdir}/${module}/Makefile
2776 fi
2777 extrasub_build="$extrasub_build
2778 /^@if build-$module\$/d
2779 /^@endif build-$module\$/d
2780 /^@if build-$module-$bootstrap_suffix\$/d
2781 /^@endif build-$module-$bootstrap_suffix\$/d"
2782 done
2783 extrasub_host=
2784 for module in ${configdirs} ; do
2785 if test -z "${no_recursion}"; then
2786 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2787 if test -f ${file}; then
2788 echo 1>&2 "*** removing ${file} to force reconfigure"
2789 rm -f ${file}
2790 fi
2791 done
2792 fi
2793 case ${module},${bootstrap_fixincludes} in
2794 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2795 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2796 esac
2797 extrasub_host="$extrasub_host
2798 /^@if $module\$/d
2799 /^@endif $module\$/d
2800 /^@if $module-$host_bootstrap_suffix\$/d
2801 /^@endif $module-$host_bootstrap_suffix\$/d"
2802 done
2803 extrasub_target=
2804 for module in ${target_configdirs} ; do
2805 if test -z "${no_recursion}" \
2806 && test -f ${target_subdir}/${module}/Makefile; then
2807 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2808 rm -f ${target_subdir}/${module}/Makefile
2809 fi
2810
2811 # We only bootstrap target libraries listed in bootstrap_target_libs.
2812 case $bootstrap_target_libs in
2813 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2814 *) target_bootstrap_suffix=no-bootstrap ;;
2815 esac
2816
2817 extrasub_target="$extrasub_target
2818 /^@if target-$module\$/d
2819 /^@endif target-$module\$/d
2820 /^@if target-$module-$target_bootstrap_suffix\$/d
2821 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2822 done
2823
2824 # Do the final fixup along with target modules.
2825 extrasub_target="$extrasub_target
2826 /^@if /,/^@endif /d"
2827
2828 # Create the serialization dependencies. This uses a temporary file.
2829
2830 AC_ARG_ENABLE([serial-configure],
2831 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2832 [force sequential configuration of
2833 sub-packages for the host, target or build
2834 machine, or all sub-packages])])
2835
2836 case ${enable_serial_configure} in
2837 yes)
2838 enable_serial_build_configure=yes
2839 enable_serial_host_configure=yes
2840 enable_serial_target_configure=yes
2841 ;;
2842 esac
2843
2844 # These force 'configure's to be done one at a time, to avoid problems
2845 # with contention over a shared config.cache.
2846 rm -f serdep.tmp
2847 echo '# serdep.tmp' > serdep.tmp
2848 olditem=
2849 test "x${enable_serial_build_configure}" = xyes &&
2850 for item in ${build_configdirs} ; do
2851 case ${olditem} in
2852 "") ;;
2853 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2854 esac
2855 olditem=${item}
2856 done
2857 olditem=
2858 test "x${enable_serial_host_configure}" = xyes &&
2859 for item in ${configdirs} ; do
2860 case ${olditem} in
2861 "") ;;
2862 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2863 esac
2864 olditem=${item}
2865 done
2866 olditem=
2867 test "x${enable_serial_target_configure}" = xyes &&
2868 for item in ${target_configdirs} ; do
2869 case ${olditem} in
2870 "") ;;
2871 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2872 esac
2873 olditem=${item}
2874 done
2875 serialization_dependencies=serdep.tmp
2876 AC_SUBST_FILE(serialization_dependencies)
2877
2878 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2879 # target, nonopt, and variable assignments. These are the ones we
2880 # might not want to pass down to subconfigures. The exception being
2881 # --cache-file=/dev/null, which is used to turn off the use of cache
2882 # files altogether, and which should be passed on to subconfigures.
2883 # Also strip program-prefix, program-suffix, and program-transform-name,
2884 # so that we can pass down a consistent program-transform-name.
2885 baseargs=
2886 tbaseargs=
2887 keep_next=no
2888 skip_next=no
2889 eval "set -- $ac_configure_args"
2890 for ac_arg
2891 do
2892 if test X"$skip_next" = X"yes"; then
2893 skip_next=no
2894 continue
2895 fi
2896 if test X"$keep_next" = X"yes"; then
2897 case $ac_arg in
2898 *\'*)
2899 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2900 esac
2901 baseargs="$baseargs '$ac_arg'"
2902 tbaseargs="$tbaseargs '$ac_arg'"
2903 keep_next=no
2904 continue
2905 fi
2906
2907 # Handle separated arguments. Based on the logic generated by
2908 # autoconf 2.59.
2909 case $ac_arg in
2910 *=* | --config-cache | -C | -disable-* | --disable-* \
2911 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2912 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2913 | -with-* | --with-* | -without-* | --without-* | --x)
2914 separate_arg=no
2915 ;;
2916 -*)
2917 separate_arg=yes
2918 ;;
2919 *)
2920 separate_arg=no
2921 ;;
2922 esac
2923
2924 skip_targ=no
2925 case $ac_arg in
2926 changequote(,)
2927 --with-* | --without-*)
2928 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2929
2930 case $libopt in
2931 *[-_]include)
2932 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2933 ;;
2934 *[-_]lib)
2935 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2936 ;;
2937 *)
2938 lib=$libopt
2939 ;;
2940 esac
2941 changequote([,])
2942
2943 case $lib in
2944 mpc | mpfr | gmp | isl)
2945 # If we're processing --with-$lib, --with-$lib-include or
2946 # --with-$lib-lib, for one of the libs above, and target is
2947 # different from host, don't pass the current argument to any
2948 # target library's configure.
2949 if test x$is_cross_compiler = xyes; then
2950 skip_targ=yes
2951 fi
2952 ;;
2953 esac
2954 ;;
2955 esac
2956
2957 case "$ac_arg" in
2958 --cache-file=/dev/null | \
2959 -cache-file=/dev/null )
2960 # Handled here to avoid the test to skip args below.
2961 baseargs="$baseargs '$ac_arg'"
2962 tbaseargs="$tbaseargs '$ac_arg'"
2963 # Assert: $separate_arg should always be no.
2964 keep_next=$separate_arg
2965 ;;
2966 --no*)
2967 continue
2968 ;;
2969 --c* | \
2970 --sr* | \
2971 --ho* | \
2972 --bu* | \
2973 --t* | \
2974 --program-* | \
2975 -cache_file* | \
2976 -srcdir* | \
2977 -host* | \
2978 -build* | \
2979 -target* | \
2980 -program-prefix* | \
2981 -program-suffix* | \
2982 -program-transform-name* )
2983 skip_next=$separate_arg
2984 continue
2985 ;;
2986 -*)
2987 # An option. Add it.
2988 case $ac_arg in
2989 *\'*)
2990 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2991 esac
2992 baseargs="$baseargs '$ac_arg'"
2993 if test X"$skip_targ" = Xno; then
2994 tbaseargs="$tbaseargs '$ac_arg'"
2995 fi
2996 keep_next=$separate_arg
2997 ;;
2998 *)
2999 # Either a variable assignment, or a nonopt (triplet). Don't
3000 # pass it down; let the Makefile handle this.
3001 continue
3002 ;;
3003 esac
3004 done
3005 # Remove the initial space we just introduced and, as these will be
3006 # expanded by make, quote '$'.
3007 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3008
3009 # Add in --program-transform-name, after --program-prefix and
3010 # --program-suffix have been applied to it. Autoconf has already
3011 # doubled dollar signs and backslashes in program_transform_name; we want
3012 # the backslashes un-doubled, and then the entire thing wrapped in single
3013 # quotes, because this will be expanded first by make and then by the shell.
3014 # Also, because we want to override the logic in subdir configure scripts to
3015 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3016 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3017 ${program_transform_name}
3018 EOF_SED
3019 gcc_transform_name=`cat conftestsed.out`
3020 rm -f conftestsed.out
3021 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3022 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3023 if test "$silent" = yes; then
3024 baseargs="$baseargs --silent"
3025 tbaseargs="$tbaseargs --silent"
3026 fi
3027 baseargs="$baseargs --disable-option-checking"
3028 tbaseargs="$tbaseargs --disable-option-checking"
3029
3030 # Record and document user additions to sub configure arguments.
3031 AC_ARG_VAR([build_configargs],
3032 [additional configure arguments for build directories])
3033 AC_ARG_VAR([host_configargs],
3034 [additional configure arguments for host directories])
3035 AC_ARG_VAR([target_configargs],
3036 [additional configure arguments for target directories])
3037
3038 # For the build-side libraries, we just need to pretend we're native,
3039 # and not use the same cache file. Multilibs are neither needed nor
3040 # desired. We can't even use the same cache file for all build-side
3041 # libraries, as they're compiled differently; some with C, some with
3042 # C++ or with different feature-enabling options.
3043 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3044
3045 # For host modules, accept cache file option, or specification as blank.
3046 case "${cache_file}" in
3047 "") # empty
3048 cache_file_option="" ;;
3049 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3050 cache_file_option="--cache-file=${cache_file}" ;;
3051 *) # relative path
3052 cache_file_option="--cache-file=../${cache_file}" ;;
3053 esac
3054
3055 # Host dirs don't like to share a cache file either, horribly enough.
3056 # This seems to be due to autoconf 2.5x stupidity.
3057 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3058
3059 target_configargs="$target_configargs ${tbaseargs}"
3060
3061 # Passing a --with-cross-host argument lets the target libraries know
3062 # whether they are being built with a cross-compiler or being built
3063 # native. However, it would be better to use other mechanisms to make the
3064 # sorts of decisions they want to make on this basis. Please consider
3065 # this option to be deprecated. FIXME.
3066 if test x${is_cross_compiler} = xyes ; then
3067 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3068 fi
3069
3070 # Special user-friendly check for native x86_64-linux build, if
3071 # multilib is not explicitly enabled.
3072 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3073 x86_64-*linux*:yes:$build:$build:)
3074 # Make sure we have a development environment that handles 32-bit
3075 dev64=no
3076 echo "int main () { return 0; }" > conftest.c
3077 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3078 if test $? = 0 ; then
3079 if test -s conftest || test -s conftest.exe ; then
3080 dev64=yes
3081 fi
3082 fi
3083 rm -f conftest*
3084 if test x${dev64} != xyes ; then
3085 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.])
3086 fi
3087 ;;
3088 esac
3089
3090 # Default to --enable-multilib.
3091 if test x${enable_multilib} = x ; then
3092 target_configargs="--enable-multilib ${target_configargs}"
3093 fi
3094
3095 # Pass --with-newlib if appropriate. Note that target_configdirs has
3096 # changed from the earlier setting of with_newlib.
3097 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3098 target_configargs="--with-newlib ${target_configargs}"
3099 fi
3100
3101 # Different target subdirs use different values of certain variables
3102 # (notably CXX). Worse, multilibs use *lots* of different values.
3103 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3104 # it doesn't automatically accept command-line overrides of them.
3105 # This means it's not safe for target subdirs to share a cache file,
3106 # which is disgusting, but there you have it. Hopefully this can be
3107 # fixed in future. It's still worthwhile to use a cache file for each
3108 # directory. I think.
3109
3110 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3111 # We need to pass --target, as newer autoconf's requires consistency
3112 # for target_alias and gcc doesn't manage it consistently.
3113 target_configargs="--cache-file=./config.cache ${target_configargs}"
3114
3115 FLAGS_FOR_TARGET=
3116 case " $target_configdirs " in
3117 *" newlib "*)
3118 case " $target_configargs " in
3119 *" --with-newlib "*)
3120 case "$target" in
3121 *-cygwin*)
3122 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3123 ;;
3124 esac
3125
3126 # If we're not building GCC, don't discard standard headers.
3127 if test -d ${srcdir}/gcc; then
3128 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3129
3130 if test "${build}" != "${host}"; then
3131 # On Canadian crosses, CC_FOR_TARGET will have already been set
3132 # by `configure', so we won't have an opportunity to add -Bgcc/
3133 # to it. This is right: we don't want to search that directory
3134 # for binaries, but we want the header files in there, so add
3135 # them explicitly.
3136 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3137
3138 # Someone might think of using the pre-installed headers on
3139 # Canadian crosses, in case the installed compiler is not fully
3140 # compatible with the compiler being built. In this case, it
3141 # would be better to flag an error than risking having
3142 # incompatible object files being constructed. We can't
3143 # guarantee that an error will be flagged, but let's hope the
3144 # compiler will do it, when presented with incompatible header
3145 # files.
3146 fi
3147 fi
3148
3149 case "${target}-${is_cross_compiler}" in
3150 i[[3456789]]86-*-linux*-no)
3151 # Here host == target, so we don't need to build gcc,
3152 # so we don't want to discard standard headers.
3153 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3154 ;;
3155 *)
3156 # If we're building newlib, use its generic headers last, but search
3157 # for any libc-related directories first (so make it the last -B
3158 # switch).
3159 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3160
3161 # If we're building libgloss, find the startup file, simulator library
3162 # and linker script.
3163 case " $target_configdirs " in
3164 *" libgloss "*)
3165 # Look for startup file, simulator library and maybe linker script.
3166 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3167 # Look for libnosys.a in case the target needs it.
3168 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3169 # Most targets have the linker script in the source directory.
3170 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3171 ;;
3172 esac
3173 ;;
3174 esac
3175 ;;
3176 esac
3177 ;;
3178 esac
3179
3180 case "$target" in
3181 x86_64-*mingw* | *-w64-mingw*)
3182 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3183 # however, use a symlink named 'mingw' in ${prefix} .
3184 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3185 ;;
3186 *-mingw*)
3187 # MinGW can't be handled as Cygwin above since it does not use newlib.
3188 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3189 ;;
3190 esac
3191
3192 # Allow the user to override the flags for
3193 # our build compiler if desired.
3194 if test x"${build}" = x"${host}" ; then
3195 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3196 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3197 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3198 fi
3199
3200 # On Canadian crosses, we'll be searching the right directories for
3201 # the previously-installed cross compiler, so don't bother to add
3202 # flags for directories within the install tree of the compiler
3203 # being built; programs in there won't even run.
3204 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3205 # Search for pre-installed headers if nothing else fits.
3206 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3207 fi
3208
3209 if test "x${use_gnu_ld}" = x &&
3210 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3211 # Arrange for us to find uninstalled linker scripts.
3212 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3213 fi
3214
3215 # Search for other target-specific linker scripts and such.
3216 case "${target}" in
3217 mep*)
3218 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3219 ;;
3220 esac
3221
3222 # Makefile fragments.
3223 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3224 do
3225 eval fragval=\$$frag
3226 if test $fragval != /dev/null; then
3227 eval $frag=${srcdir}/$fragval
3228 fi
3229 done
3230 AC_SUBST_FILE(host_makefile_frag)
3231 AC_SUBST_FILE(target_makefile_frag)
3232 AC_SUBST_FILE(alphaieee_frag)
3233 AC_SUBST_FILE(ospace_frag)
3234
3235 # Miscellanea: directories, flags, etc.
3236 AC_SUBST(RPATH_ENVVAR)
3237 AC_SUBST(GCC_SHLIB_SUBDIR)
3238 AC_SUBST(tooldir)
3239 AC_SUBST(build_tooldir)
3240 AC_SUBST(CONFIGURE_GDB_TK)
3241 AC_SUBST(GDB_TK)
3242 AC_SUBST(INSTALL_GDB_TK)
3243
3244 # Build module lists & subconfigure args.
3245 AC_SUBST(build_configargs)
3246 AC_SUBST(build_configdirs)
3247
3248 # Host module lists & subconfigure args.
3249 AC_SUBST(host_configargs)
3250 AC_SUBST(configdirs)
3251 AC_SUBST(target_configdirs)
3252
3253 # Target module lists & subconfigure args.
3254 AC_SUBST(target_configargs)
3255
3256
3257 # Build tools.
3258 AC_SUBST(AR_FOR_BUILD)
3259 AC_SUBST(AS_FOR_BUILD)
3260 AC_SUBST(CC_FOR_BUILD)
3261 AC_SUBST(CFLAGS_FOR_BUILD)
3262 AC_SUBST(CXXFLAGS_FOR_BUILD)
3263 AC_SUBST(CXX_FOR_BUILD)
3264 AC_SUBST(DLLTOOL_FOR_BUILD)
3265 AC_SUBST(GFORTRAN_FOR_BUILD)
3266 AC_SUBST(GOC_FOR_BUILD)
3267 AC_SUBST(LDFLAGS_FOR_BUILD)
3268 AC_SUBST(LD_FOR_BUILD)
3269 AC_SUBST(NM_FOR_BUILD)
3270 AC_SUBST(RANLIB_FOR_BUILD)
3271 AC_SUBST(WINDMC_FOR_BUILD)
3272 AC_SUBST(WINDRES_FOR_BUILD)
3273
3274 # Generate default definitions for YACC, M4, LEX and other programs that run
3275 # on the build machine. These are used if the Makefile can't locate these
3276 # programs in objdir.
3277 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3278
3279 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3280 case " $build_configdirs " in
3281 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3282 esac
3283
3284 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3285 case " $build_configdirs " in
3286 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3287 esac
3288
3289 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3290 case " $build_configdirs " in
3291 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3292 esac
3293
3294 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3295 case " $build_configdirs " in
3296 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3297 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3298 esac
3299
3300 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3301 case " $build_configdirs " in
3302 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3303 esac
3304
3305 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3306 case " $build_configdirs " in
3307 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3308 *)
3309 changequote(,)
3310 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3311 # higher, else we use the "missing" dummy.
3312 if ${MAKEINFO} --version \
3313 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3314 :
3315 else
3316 MAKEINFO="$MISSING makeinfo"
3317 fi
3318 ;;
3319 changequote([,])
3320 esac
3321
3322 # FIXME: expect and dejagnu may become build tools?
3323
3324 AC_CHECK_PROGS(EXPECT, expect, expect)
3325 case " $configdirs " in
3326 *" expect "*)
3327 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3328 ;;
3329 esac
3330
3331 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3332 case " $configdirs " in
3333 *" dejagnu "*)
3334 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3335 ;;
3336 esac
3337
3338
3339 # Host tools.
3340 NCN_STRICT_CHECK_TOOLS(AR, ar)
3341 NCN_STRICT_CHECK_TOOLS(AS, as)
3342 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3343 NCN_STRICT_CHECK_TOOLS(LD, ld)
3344 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3345 NCN_STRICT_CHECK_TOOLS(NM, nm)
3346 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3347 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3348 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3349 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3350 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3351 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3352 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3353 AC_SUBST(CC)
3354 AC_SUBST(CXX)
3355 AC_SUBST(CFLAGS)
3356 AC_SUBST(CXXFLAGS)
3357
3358 # Target tools.
3359 AC_ARG_WITH([build-time-tools],
3360 [AS_HELP_STRING([--with-build-time-tools=PATH],
3361 [use given path to find target tools during the build])],
3362 [case x"$withval" in
3363 x/*) ;;
3364 *)
3365 with_build_time_tools=
3366 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3367 ;;
3368 esac],
3369 [with_build_time_tools=])
3370
3371 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3372 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3373 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3374 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3375 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3376
3377 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3378 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3379 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3380 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3381 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3382 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3383 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3384 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3385 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3386 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3387 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3388 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3389 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3390
3391 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3392
3393 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3394 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3395 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3396 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3397 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3398 [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],
3399 c++)
3400 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3401 [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],
3402 c++)
3403 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3404 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3405 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3406 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3407 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3408 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3409 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3410 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3411 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3412 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3413 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3414 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3415 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3416 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3417 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3418 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3419
3420 AC_SUBST(FLAGS_FOR_TARGET)
3421 AC_SUBST(RAW_CXX_FOR_TARGET)
3422
3423 # Certain tools may need extra flags.
3424 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3425 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3426 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3427
3428 # When building target libraries, except in a Canadian cross, we use
3429 # the same toolchain as the compiler we just built.
3430 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3431 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3432 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3433 if test $host = $build; then
3434 case " $configdirs " in
3435 *" gcc "*)
3436 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3437 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3438 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3439 ;;
3440 esac
3441 fi
3442
3443 AC_SUBST(COMPILER_AS_FOR_TARGET)
3444 AC_SUBST(COMPILER_LD_FOR_TARGET)
3445 AC_SUBST(COMPILER_NM_FOR_TARGET)
3446
3447 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3448 AC_ARG_ENABLE(maintainer-mode,
3449 [AS_HELP_STRING([--enable-maintainer-mode],
3450 [enable make rules and dependencies not useful
3451 (and sometimes confusing) to the casual installer])],
3452 USE_MAINTAINER_MODE=$enableval,
3453 USE_MAINTAINER_MODE=no)
3454 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3455 AC_SUBST(MAINTAINER_MODE_TRUE)
3456 AC_SUBST(MAINTAINER_MODE_FALSE)
3457 if test "$USE_MAINTAINER_MODE" = yes; then
3458 MAINTAINER_MODE_TRUE=
3459 MAINTAINER_MODE_FALSE='#'
3460 else
3461 MAINTAINER_MODE_TRUE='#'
3462 MAINTAINER_MODE_FALSE=
3463 fi
3464 MAINT=$MAINTAINER_MODE_TRUE
3465 AC_SUBST(MAINT)dnl
3466
3467 # ---------------------
3468 # GCC bootstrap support
3469 # ---------------------
3470
3471 # Stage specific cflags for build.
3472 stage1_cflags="-g"
3473 case $build in
3474 vax-*-*)
3475 case ${GCC} in
3476 yes) stage1_cflags="-g -Wa,-J" ;;
3477 *) stage1_cflags="-g -J" ;;
3478 esac ;;
3479 esac
3480
3481 AC_SUBST(stage1_cflags)
3482
3483 # Enable --enable-checking in stage1 of the compiler.
3484 AC_ARG_ENABLE(stage1-checking,
3485 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3486 [choose additional checking for stage1 of the compiler])],
3487 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3488 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3489 # For --disable-checking or implicit --enable-checking=release, avoid
3490 # setting --enable-checking=gc in the default stage1 checking for LTO
3491 # bootstraps. See PR62077.
3492 case $BUILD_CONFIG in
3493 *lto*)
3494 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3495 *)
3496 stage1_checking=--enable-checking=yes,types;;
3497 esac
3498 if test "x$enable_checking" = x && \
3499 test -d ${srcdir}/gcc && \
3500 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3501 stage1_checking=--enable-checking=yes,types,extra
3502 fi
3503 else
3504 stage1_checking=--enable-checking=$enable_checking,types
3505 fi])
3506 AC_SUBST(stage1_checking)
3507
3508 # Enable -Werror in bootstrap stage2 and later.
3509 AC_ARG_ENABLE(werror,
3510 [AS_HELP_STRING([--enable-werror],
3511 [enable -Werror in bootstrap stage2 and later])],
3512 [
3513 case ${enable_werror} in
3514 yes) stage2_werror_flag="--enable-werror-always" ;;
3515 *) stage2_werror_flag="" ;;
3516 esac
3517 ],
3518 [
3519 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3520 case $BUILD_CONFIG in
3521 bootstrap-debug)
3522 stage2_werror_flag="--enable-werror-always" ;;
3523 "")
3524 stage2_werror_flag="--enable-werror-always" ;;
3525 esac
3526 fi
3527 ])
3528
3529 AC_SUBST(stage2_werror_flag)
3530
3531 # Specify what files to not compare during bootstrap.
3532
3533 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3534 case "$target" in
3535 hppa*64*-*-hpux*) ;;
3536 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;;
3537 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3538 esac
3539 AC_SUBST(compare_exclusions)
3540
3541 AC_CONFIG_FILES([Makefile],
3542 [sed "$extrasub_build" Makefile |
3543 sed "$extrasub_host" |
3544 sed "$extrasub_target" > mf$$
3545 mv -f mf$$ Makefile],
3546 [extrasub_build="$extrasub_build"
3547 extrasub_host="$extrasub_host"
3548 extrasub_target="$extrasub_target"])
3549 AC_OUTPUT