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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, 2019 Free Software Foundation, Inc.
4 #
5 # This file is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 3 of the License, or
8 # (at your option) any later version.
9 #
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program; see the file COPYING3. If not see
17 # <http://www.gnu.org/licenses/>.
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(config/debuginfod.m4)
27 m4_include([libtool.m4])
28 m4_include([ltoptions.m4])
29 m4_include([ltsugar.m4])
30 m4_include([ltversion.m4])
31 m4_include([lt~obsolete.m4])
32 m4_include([config/isl.m4])
33
34 AC_INIT(move-if-change)
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 libctf"
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-liboffloadmic \
154 target-libhsail-rt \
155 target-libatomic \
156 target-libitm \
157 target-libstdc++-v3 \
158 target-libsanitizer \
159 target-libvtv \
160 target-libssp \
161 target-libquadmath \
162 target-libgfortran \
163 target-libffi \
164 target-libobjc \
165 target-libada \
166 target-libgo"
167
168 # these tools are built using the target libraries, and are intended to
169 # run only in the target environment
170 #
171 # note: any program that *uses* libraries that are in the "target_libraries"
172 # list belongs in this list.
173 #
174 target_tools="target-rda"
175
176 ################################################################################
177
178 ## All tools belong in one of the four categories, and are assigned above
179 ## We assign ${configdirs} this way to remove all embedded newlines. This
180 ## is important because configure will choke if they ever get through.
181 ## ${configdirs} is directories we build using the host tools.
182 ## ${target_configdirs} is directories we build using the target tools.
183 configdirs=`echo ${host_libs} ${host_tools}`
184 target_configdirs=`echo ${target_libraries} ${target_tools}`
185 build_configdirs=`echo ${build_libs} ${build_tools}`
186
187 m4_divert_text([PARSE_ARGS],
188 [case $srcdir in
189 *" "*)
190 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
191 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
192 m4_popdef([AS_MESSAGE_LOG_FD])dnl
193 ;;
194 esac
195 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
196 ])
197
198 ################################################################################
199
200 srcname="gnu development package"
201
202 # This gets set non-empty for some net releases of packages.
203 appdirs=""
204
205 # Define is_cross_compiler to save on calls to 'test'.
206 is_cross_compiler=
207 if test x"${host}" = x"${target}" ; then
208 is_cross_compiler=no
209 else
210 is_cross_compiler=yes
211 fi
212
213 # Find the build and target subdir names.
214 GCC_TOPLEV_SUBDIRS
215 # Be sure to cover against remnants of an in-tree build.
216 if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
217 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
218 Use a pristine source tree when building in a separate tree])
219 fi
220
221 # Skipdirs are removed silently.
222 skipdirs=
223 # Noconfigdirs are removed loudly.
224 noconfigdirs=""
225
226 use_gnu_ld=
227 # Make sure we don't let GNU ld be added if we didn't want it.
228 if test x$with_gnu_ld = xno ; then
229 use_gnu_ld=no
230 noconfigdirs="$noconfigdirs ld gold"
231 fi
232
233 use_gnu_as=
234 # Make sure we don't let GNU as be added if we didn't want it.
235 if test x$with_gnu_as = xno ; then
236 use_gnu_as=no
237 noconfigdirs="$noconfigdirs gas"
238 fi
239
240 use_included_zlib=
241 AC_ARG_WITH(system-zlib,
242 [AS_HELP_STRING([--with-system-zlib], [use installed libz])])
243 # Make sure we don't let ZLIB be added if we didn't want it.
244 if test x$with_system_zlib = xyes ; then
245 use_included_zlib=no
246 noconfigdirs="$noconfigdirs zlib"
247 fi
248
249 # Don't compile the bundled readline/libreadline.a if --with-system-readline
250 # is provided.
251 if test x$with_system_readline = xyes ; then
252 noconfigdirs="$noconfigdirs readline"
253 fi
254
255 # some tools are so dependent upon X11 that if we're not building with X,
256 # it's not even worth trying to configure, much less build, that tool.
257
258 case ${with_x} in
259 yes | "") ;; # the default value for this tree is that X11 is available
260 no)
261 skipdirs="${skipdirs} tk itcl libgui"
262 # We won't be able to build gdbtk without X.
263 enable_gdbtk=no
264 ;;
265 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
266 esac
267
268 # Some are only suitable for cross toolchains.
269 # Remove these if host=target.
270 cross_only="target-libgloss target-newlib target-opcodes"
271
272 case $is_cross_compiler in
273 no) skipdirs="${skipdirs} ${cross_only}" ;;
274 esac
275
276 # If both --with-headers and --with-libs are specified, default to
277 # --without-newlib.
278 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
279 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
280 if test x"${with_newlib}" = x ; then
281 with_newlib=no
282 fi
283 fi
284
285 # Recognize --with-newlib/--without-newlib.
286 case ${with_newlib} in
287 no) skipdirs="${skipdirs} target-newlib" ;;
288 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
289 esac
290
291 AC_ARG_ENABLE(as-accelerator-for,
292 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
293 [build as offload target compiler.
294 Specify offload host triple by ARG])])
295
296 AC_ARG_ENABLE(offload-targets,
297 [AS_HELP_STRING([--enable-offload-targets=LIST],
298 [enable offloading to devices from comma-separated LIST of
299 TARGET[=DIR]. Use optional path to find offload target compiler
300 during the build])],
301 [
302 if test x"$enable_offload_targets" = x; then
303 AC_MSG_ERROR([no offload targets specified])
304 fi
305 ], [enable_offload_targets=])
306
307 # Handle --enable-gold, --enable-ld.
308 # --disable-gold [--enable-ld]
309 # Build only ld. Default option.
310 # --enable-gold [--enable-ld]
311 # Build both gold and ld. Install gold as "ld.gold", install ld
312 # as "ld.bfd" and "ld".
313 # --enable-gold=default [--enable-ld]
314 # Build both gold and ld. Install gold as "ld.gold" and "ld",
315 # install ld as "ld.bfd".
316 # --enable-gold[=default] --disable-ld
317 # Build only gold, which is then installed as both "ld.gold" and "ld".
318 # --enable-gold --enable-ld=default
319 # Build both gold (installed as "ld.gold") and ld (installed as "ld"
320 # and ld.bfd).
321 # In other words, ld is default
322 # --enable-gold=default --enable-ld=default
323 # Error.
324
325 default_ld=
326 AC_ARG_ENABLE(gold,
327 [AS_HELP_STRING([[--enable-gold[=ARG]]],
328 [build gold @<:@ARG={default,yes,no}@:>@])],
329 ENABLE_GOLD=$enableval,
330 ENABLE_GOLD=no)
331 case "${ENABLE_GOLD}" in
332 yes|default)
333 # Check for ELF target.
334 is_elf=no
335 case "${target}" in
336 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
337 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
338 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
339 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
340 case "${target}" in
341 *-*-linux*aout* | *-*-linux*oldld*)
342 ;;
343 *)
344 is_elf=yes
345 ;;
346 esac
347 esac
348
349 if test "$is_elf" = "yes"; then
350 # Check for target supported by gold.
351 case "${target}" in
352 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
353 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
354 configdirs="$configdirs gold"
355 if test x${ENABLE_GOLD} = xdefault; then
356 default_ld=gold
357 fi
358 ENABLE_GOLD=yes
359 ;;
360 esac
361 fi
362 ;;
363 no)
364 ;;
365 *)
366 AC_MSG_ERROR([invalid --enable-gold argument])
367 ;;
368 esac
369
370 AC_ARG_ENABLE(ld,
371 [AS_HELP_STRING([[--enable-ld[=ARG]]],
372 [build ld @<:@ARG={default,yes,no}@:>@])],
373 ENABLE_LD=$enableval,
374 ENABLE_LD=yes)
375
376 case "${ENABLE_LD}" in
377 default)
378 if test x${default_ld} != x; then
379 AC_MSG_ERROR([either gold or ld can be the default ld])
380 fi
381 ;;
382 yes)
383 ;;
384 no)
385 if test x${ENABLE_GOLD} != xyes; then
386 AC_MSG_WARN([neither ld nor gold are enabled])
387 fi
388 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
389 ;;
390 *)
391 AC_MSG_ERROR([invalid --enable-ld argument])
392 ;;
393 esac
394
395 # PR gas/19109
396 # Decide the default method for compressing debug sections.
397 # Provide a configure time option to override our default.
398 AC_ARG_ENABLE(compressed_debug_sections,
399 [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
400 [Enable compressed debug sections for gas, gold or ld by
401 default])],
402 [
403 if test x"$enable_compressed_debug_sections" = xyes; then
404 AC_MSG_ERROR([no program with compressed debug sections specified])
405 fi
406 ], [enable_compressed_debug_sections=])
407
408 # Configure extra directories which are host specific
409
410 case "${host}" in
411 *-cygwin*)
412 configdirs="$configdirs libtermcap" ;;
413 esac
414
415 # A target can indicate whether a language isn't supported for some reason.
416 # Only spaces may be used in this macro; not newlines or tabs.
417 unsupported_languages=
418
419 # Remove more programs from consideration, based on the host or
420 # target this usually means that a port of the program doesn't
421 # exist yet.
422
423 case "${host}" in
424 i[[3456789]]86-*-msdosdjgpp*)
425 noconfigdirs="$noconfigdirs tcl tk itcl"
426 ;;
427 esac
428
429
430 AC_ARG_ENABLE(libquadmath,
431 AS_HELP_STRING([--disable-libquadmath],
432 [do not build libquadmath directory]),
433 ENABLE_LIBQUADMATH=$enableval,
434 ENABLE_LIBQUADMATH=yes)
435 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
436 noconfigdirs="$noconfigdirs target-libquadmath"
437 fi
438
439
440 AC_ARG_ENABLE(libquadmath-support,
441 AS_HELP_STRING([--disable-libquadmath-support],
442 [disable libquadmath support for Fortran]),
443 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
444 ENABLE_LIBQUADMATH_SUPPORT=yes)
445 enable_libquadmath_support=
446 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
447 enable_libquadmath_support=no
448 fi
449
450
451 AC_ARG_ENABLE(libada,
452 [AS_HELP_STRING([--enable-libada], [build libada directory])],
453 ENABLE_LIBADA=$enableval,
454 ENABLE_LIBADA=yes)
455 if test "${ENABLE_LIBADA}" != "yes" ; then
456 noconfigdirs="$noconfigdirs gnattools"
457 fi
458
459 AC_ARG_ENABLE(libssp,
460 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
461 ENABLE_LIBSSP=$enableval,
462 ENABLE_LIBSSP=yes)
463
464 AC_ARG_ENABLE(libstdcxx,
465 AS_HELP_STRING([--disable-libstdcxx],
466 [do not build libstdc++-v3 directory]),
467 ENABLE_LIBSTDCXX=$enableval,
468 ENABLE_LIBSTDCXX=default)
469 [if test "${ENABLE_LIBSTDCXX}" = "no" ; then
470 noconfigdirs="$noconfigdirs target-libstdc++-v3"
471 fi]
472
473 # If this is accelerator compiler and its target is intelmic we enable
474 # target liboffloadmic by default. If this is compiler with offloading
475 # for intelmic we enable host liboffloadmic by default. Otherwise
476 # liboffloadmic is disabled by default.
477 AC_ARG_ENABLE([liboffloadmic],
478 AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
479 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
480 [case "$enableval" in
481 no | host | target)
482 enable_liboffloadmic=$enableval ;;
483 *)
484 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
485 esac],
486 [if test x"$enable_as_accelerator_for" != x; then
487 case "${target}" in
488 *-intelmic-* | *-intelmicemul-*)
489 enable_liboffloadmic=target
490 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
491 ;;
492 *)
493 enable_liboffloadmic=no
494 ;;
495 esac
496 else
497 case "${enable_offload_targets}" in
498 *-intelmic-* | *-intelmicemul-*)
499 enable_liboffloadmic=host
500 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
501 ;;
502 *)
503 enable_liboffloadmic=no
504 ;;
505 esac
506 fi])
507 AC_SUBST(extra_liboffloadmic_configure_flags)
508
509 # Enable libgomp by default on hosted POSIX systems, and a few others.
510 if test x$enable_libgomp = x ; then
511 case "${target}" in
512 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
513 ;;
514 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
515 ;;
516 *-*-solaris2* | *-*-hpux11*)
517 ;;
518 *-*-darwin* | *-*-aix*)
519 ;;
520 nvptx*-*-*)
521 ;;
522 *)
523 noconfigdirs="$noconfigdirs target-libgomp"
524 ;;
525 esac
526 fi
527
528 # Disable libatomic on unsupported systems.
529 if test -d ${srcdir}/libatomic; then
530 if test x$enable_libatomic = x; then
531 AC_MSG_CHECKING([for libatomic support])
532 if (srcdir=${srcdir}/libatomic; \
533 . ${srcdir}/configure.tgt; \
534 test -n "$UNSUPPORTED")
535 then
536 AC_MSG_RESULT([no])
537 noconfigdirs="$noconfigdirs target-libatomic"
538 else
539 AC_MSG_RESULT([yes])
540 fi
541 fi
542 fi
543
544 # Disable liboffloadmic on unsupported systems.
545 if test -d ${srcdir}/liboffloadmic; then
546 if test x$enable_liboffloadmic != xno; then
547 AC_MSG_CHECKING([for liboffloadmic support])
548 if (srcdir=${srcdir}/liboffloadmic; \
549 . ${srcdir}/configure.tgt; \
550 test -n "$UNSUPPORTED")
551 then
552 AC_MSG_RESULT([no])
553 noconfigdirs="$noconfigdirs target-liboffloadmic"
554 else
555 AC_MSG_RESULT([yes])
556 fi
557 fi
558 fi
559
560 # Disable libitm on unsupported systems.
561 if test -d ${srcdir}/libitm; then
562 if test x$enable_libitm = x; then
563 AC_MSG_CHECKING([for libitm support])
564 if (srcdir=${srcdir}/libitm; \
565 . ${srcdir}/configure.tgt; \
566 test -n "$UNSUPPORTED")
567 then
568 AC_MSG_RESULT([no])
569 noconfigdirs="$noconfigdirs target-libitm"
570 else
571 AC_MSG_RESULT([yes])
572 fi
573 fi
574 fi
575
576 # Disable libsanitizer on unsupported systems.
577 if test -d ${srcdir}/libsanitizer; then
578 if test x$enable_libsanitizer = x; then
579 AC_MSG_CHECKING([for libsanitizer support])
580 if (srcdir=${srcdir}/libsanitizer; \
581 . ${srcdir}/configure.tgt; \
582 test -n "$UNSUPPORTED")
583 then
584 AC_MSG_RESULT([no])
585 noconfigdirs="$noconfigdirs target-libsanitizer"
586 else
587 AC_MSG_RESULT([yes])
588 fi
589 fi
590 fi
591
592 # Disable libvtv on unsupported systems.
593 if test -d ${srcdir}/libvtv; then
594 if test x$enable_libvtv = x; then
595 AC_MSG_CHECKING([for libvtv support])
596 if (srcdir=${srcdir}/libvtv; \
597 . ${srcdir}/configure.tgt; \
598 test "$VTV_SUPPORTED" != "yes")
599 then
600 AC_MSG_RESULT([no])
601 noconfigdirs="$noconfigdirs target-libvtv"
602 else
603 AC_MSG_RESULT([yes])
604 fi
605 fi
606 fi
607
608
609 # Disable libhsail-rt on unsupported systems.
610 if test -d ${srcdir}/libhsail-rt; then
611 if test x$enable_libhsail_rt = x; then
612 AC_MSG_CHECKING([for libhsail-rt support])
613 if (srcdir=${srcdir}/libhsail-rt; \
614 . ${srcdir}/configure.tgt; \
615 test -n "$UNSUPPORTED")
616 then
617 AC_MSG_RESULT([no])
618 unsupported_languages="$unsupported_languages brig"
619 # This implicitly disables also target-libhsail-rt as it won't
620 # get added to the build without BRIG FE.
621 else
622 AC_MSG_RESULT([yes])
623 fi
624 fi
625 fi
626
627
628 # Disable libquadmath for some systems.
629 case "${target}" in
630 avr-*-*)
631 noconfigdirs="$noconfigdirs target-libquadmath"
632 ;;
633 # libquadmath is unused on AIX and libquadmath build process use of
634 # LD_LIBRARY_PATH can break AIX bootstrap.
635 powerpc-*-aix* | rs6000-*-aix*)
636 noconfigdirs="$noconfigdirs target-libquadmath"
637 ;;
638 esac
639
640 # Disable libssp for some systems.
641 case "${target}" in
642 avr-*-*)
643 # No hosted I/O support.
644 noconfigdirs="$noconfigdirs target-libssp"
645 ;;
646 powerpc-*-aix* | rs6000-*-aix*)
647 noconfigdirs="$noconfigdirs target-libssp"
648 ;;
649 rl78-*-*)
650 # libssp uses a misaligned load to trigger a fault, but the RL78
651 # doesn't fault for those - instead, it gives a build-time error
652 # for explicit misaligned loads.
653 noconfigdirs="$noconfigdirs target-libssp"
654 ;;
655 visium-*-*)
656 # No hosted I/O support.
657 noconfigdirs="$noconfigdirs target-libssp"
658 ;;
659 esac
660
661 # Disable libstdc++-v3 for some systems.
662 # Allow user to override this if they pass --enable-libstdc++-v3
663 if test "${ENABLE_LIBSTDCXX}" = "default" ; then
664 case "${target}" in
665 *-*-vxworks*)
666 # VxWorks uses the Dinkumware C++ library.
667 noconfigdirs="$noconfigdirs target-libstdc++-v3"
668 ;;
669 arm*-wince-pe*)
670 # the C++ libraries don't build on top of CE's C libraries
671 noconfigdirs="$noconfigdirs target-libstdc++-v3"
672 ;;
673 avr-*-*)
674 noconfigdirs="$noconfigdirs target-libstdc++-v3"
675 ;;
676 ft32-*-*)
677 noconfigdirs="$noconfigdirs target-libstdc++-v3"
678 ;;
679 esac
680 fi
681
682 # Disable Fortran for some systems.
683 case "${target}" in
684 mmix-*-*)
685 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
686 unsupported_languages="$unsupported_languages fortran"
687 ;;
688 esac
689
690 # Disable libffi for some systems.
691 case "${target}" in
692 powerpc-*-darwin*)
693 ;;
694 i[[3456789]]86-*-darwin*)
695 ;;
696 x86_64-*-darwin[[912]]*)
697 ;;
698 *-*-darwin*)
699 noconfigdirs="$noconfigdirs target-libffi"
700 ;;
701 *-*-netware*)
702 noconfigdirs="$noconfigdirs target-libffi"
703 ;;
704 *-*-phoenix*)
705 noconfigdirs="$noconfigdirs target-libffi"
706 ;;
707 *-*-rtems*)
708 noconfigdirs="$noconfigdirs target-libffi"
709 ;;
710 *-*-tpf*)
711 noconfigdirs="$noconfigdirs target-libffi"
712 ;;
713 *-*-uclinux*)
714 noconfigdirs="$noconfigdirs target-libffi"
715 ;;
716 *-*-vxworks*)
717 noconfigdirs="$noconfigdirs target-libffi"
718 ;;
719 aarch64*-*-freebsd*)
720 noconfigdirs="$noconfigdirs target-libffi"
721 ;;
722 alpha*-*-*vms*)
723 noconfigdirs="$noconfigdirs target-libffi"
724 ;;
725 arm*-*-freebsd*)
726 noconfigdirs="$noconfigdirs target-libffi"
727 ;;
728 arm-wince-pe)
729 noconfigdirs="$noconfigdirs target-libffi"
730 ;;
731 arm*-*-symbianelf*)
732 noconfigdirs="$noconfigdirs target-libffi"
733 ;;
734 cris-*-* | crisv32-*-*)
735 case "${target}" in
736 *-*-linux*)
737 ;;
738 *) # See PR46792 regarding target-libffi.
739 noconfigdirs="$noconfigdirs target-libffi";;
740 esac
741 ;;
742 hppa*64*-*-hpux*)
743 noconfigdirs="$noconfigdirs target-libffi"
744 ;;
745 hppa*-hp-hpux11*)
746 ;;
747 hppa*-*-hpux*)
748 noconfigdirs="$noconfigdirs target-libffi"
749 ;;
750 ia64*-*-*vms*)
751 noconfigdirs="$noconfigdirs target-libffi"
752 ;;
753 i[[3456789]]86-w64-mingw*)
754 noconfigdirs="$noconfigdirs target-libffi"
755 ;;
756 i[[3456789]]86-*-mingw*)
757 noconfigdirs="$noconfigdirs target-libffi"
758 ;;
759 x86_64-*-mingw*)
760 noconfigdirs="$noconfigdirs target-libffi"
761 ;;
762 mmix-*-*)
763 noconfigdirs="$noconfigdirs target-libffi"
764 ;;
765 powerpc-*-aix*)
766 ;;
767 rs6000-*-aix*)
768 ;;
769 ft32-*-*)
770 noconfigdirs="$noconfigdirs target-libffi"
771 ;;
772 *-*-lynxos*)
773 noconfigdirs="$noconfigdirs target-libffi"
774 ;;
775 esac
776
777 # Disable the go frontend on systems where it is known to not work. Please keep
778 # this in sync with contrib/config-list.mk.
779 case "${target}" in
780 *-*-darwin* | *-*-cygwin* | *-*-mingw*)
781 unsupported_languages="$unsupported_languages go"
782 ;;
783 esac
784
785 # Disable libgo for some systems where it is known to not work.
786 # For testing, you can easily override this with --enable-libgo.
787 if test x$enable_libgo = x; then
788 case "${target}" in
789 *-*-darwin*)
790 # PR 46986
791 noconfigdirs="$noconfigdirs target-libgo"
792 ;;
793 *-*-cygwin* | *-*-mingw*)
794 noconfigdirs="$noconfigdirs target-libgo"
795 ;;
796 esac
797 fi
798
799 # Default libgloss CPU subdirectory.
800 libgloss_dir="$target_cpu"
801
802 case "${target}" in
803 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
804 libgloss_dir=wince
805 ;;
806 aarch64*-*-* )
807 libgloss_dir=aarch64
808 ;;
809 arm*-*-*)
810 libgloss_dir=arm
811 ;;
812 cris-*-* | crisv32-*-*)
813 libgloss_dir=cris
814 ;;
815 hppa*-*-*)
816 libgloss_dir=pa
817 ;;
818 i[[3456789]]86-*-*)
819 libgloss_dir=i386
820 ;;
821 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
822 libgloss_dir=m68hc11
823 ;;
824 m68*-*-* | fido-*-*)
825 libgloss_dir=m68k
826 ;;
827 mips*-*-*)
828 libgloss_dir=mips
829 ;;
830 powerpc*-*-*)
831 libgloss_dir=rs6000
832 ;;
833 sparc*-*-*)
834 libgloss_dir=sparc
835 ;;
836 esac
837
838 # Disable newlib and libgloss for various target OSes.
839 case "${target}" in
840 alpha*-dec-osf*)
841 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
842 ;;
843 i[[3456789]]86-*-linux*)
844 # This section makes it possible to build newlib natively on linux.
845 # If we are using a cross compiler then don't configure newlib.
846 if test x${is_cross_compiler} != xno ; then
847 noconfigdirs="$noconfigdirs target-newlib"
848 fi
849 noconfigdirs="$noconfigdirs target-libgloss"
850 # If we are not using a cross compiler, do configure newlib.
851 # Note however, that newlib will only be configured in this situation
852 # if the --with-newlib option has been given, because otherwise
853 # 'target-newlib' will appear in skipdirs.
854 ;;
855 i[[3456789]]86-*-rdos*)
856 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
857 ;;
858 sh*-*-pe|mips*-*-pe|arm-wince-pe)
859 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
860 ;;
861 sparc-*-sunos4*)
862 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
863 ;;
864 *-*-aix*)
865 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
866 ;;
867 *-*-beos*)
868 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
869 ;;
870 *-*-chorusos)
871 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
872 ;;
873 *-*-dragonfly*)
874 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
875 ;;
876 *-*-freebsd*)
877 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
878 ;;
879 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
880 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
881 ;;
882 *-*-lynxos*)
883 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
884 ;;
885 *-*-mingw*)
886 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
887 ;;
888 *-*-netbsd*)
889 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
890 ;;
891 *-*-netware*)
892 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
893 ;;
894 *-*-tpf*)
895 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
896 ;;
897 *-*-uclinux*)
898 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
899 ;;
900 *-*-vxworks*)
901 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
902 ;;
903 esac
904
905 case "${target}" in
906 *-*-chorusos)
907 ;;
908 aarch64-*-darwin*)
909 noconfigdirs="$noconfigdirs ld gas gdb gprof"
910 noconfigdirs="$noconfigdirs sim target-rda"
911 ;;
912 arm-*-darwin*)
913 noconfigdirs="$noconfigdirs ld gas gdb gprof"
914 noconfigdirs="$noconfigdirs sim target-rda"
915 ;;
916 powerpc-*-darwin*)
917 noconfigdirs="$noconfigdirs ld gas gdb gprof"
918 noconfigdirs="$noconfigdirs sim target-rda"
919 ;;
920 i[[3456789]]86-*-darwin*)
921 noconfigdirs="$noconfigdirs ld gprof"
922 noconfigdirs="$noconfigdirs sim target-rda"
923 ;;
924 x86_64-*-darwin[[912]]*)
925 noconfigdirs="$noconfigdirs ld gas gprof"
926 noconfigdirs="$noconfigdirs sim target-rda"
927 ;;
928 *-*-darwin*)
929 noconfigdirs="$noconfigdirs ld gas gdb gprof"
930 noconfigdirs="$noconfigdirs sim target-rda"
931 ;;
932 *-*-dragonfly*)
933 ;;
934 *-*-freebsd*)
935 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
936 && test -f /usr/local/include/gmp.h; then
937 with_gmp=/usr/local
938 fi
939 ;;
940 *-*-kaos*)
941 # Remove unsupported stuff on all kaOS configurations.
942 noconfigdirs="$noconfigdirs target-libgloss"
943 ;;
944 *-*-netbsd*)
945 ;;
946 *-*-netware*)
947 ;;
948 *-*-phoenix*)
949 noconfigdirs="$noconfigdirs target-libgloss"
950 ;;
951 *-*-rtems*)
952 noconfigdirs="$noconfigdirs target-libgloss"
953 ;;
954 # The tpf target doesn't support gdb yet.
955 *-*-tpf*)
956 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
957 ;;
958 *-*-uclinux*)
959 noconfigdirs="$noconfigdirs target-rda"
960 ;;
961 *-*-vxworks*)
962 ;;
963 alpha*-dec-osf*)
964 # ld works, but does not support shared libraries.
965 # gas doesn't generate exception information.
966 noconfigdirs="$noconfigdirs gas ld"
967 ;;
968 alpha*-*-*vms*)
969 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
970 ;;
971 alpha*-*-*)
972 # newlib is not 64 bit ready
973 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
974 ;;
975 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
976 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
977 ;;
978 arc*-*-*)
979 noconfigdirs="$noconfigdirs sim"
980 ;;
981 arm-*-pe*)
982 noconfigdirs="$noconfigdirs target-libgloss"
983 ;;
984 arm-*-riscix*)
985 noconfigdirs="$noconfigdirs ld target-libgloss"
986 ;;
987 avr-*-*)
988 if test x${with_avrlibc} != xno; then
989 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
990 fi
991 ;;
992 c4x-*-* | tic4x-*-*)
993 noconfigdirs="$noconfigdirs target-libgloss"
994 ;;
995 tic54x-*-*)
996 noconfigdirs="$noconfigdirs target-libgloss gdb"
997 ;;
998 d10v-*-*)
999 noconfigdirs="$noconfigdirs target-libgloss"
1000 ;;
1001 d30v-*-*)
1002 noconfigdirs="$noconfigdirs gdb"
1003 ;;
1004 fr30-*-elf*)
1005 noconfigdirs="$noconfigdirs gdb"
1006 ;;
1007 ft32-*-*)
1008 noconfigdirs="$noconfigdirs target-rda gprof"
1009 ;;
1010 moxie-*-*)
1011 noconfigdirs="$noconfigdirs"
1012 ;;
1013 h8300*-*-*)
1014 noconfigdirs="$noconfigdirs target-libgloss"
1015 ;;
1016 h8500-*-*)
1017 noconfigdirs="$noconfigdirs target-libgloss"
1018 ;;
1019 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1020 ;;
1021 hppa*64*-*-hpux*)
1022 noconfigdirs="$noconfigdirs gdb"
1023 ;;
1024 hppa*-*-hpux11*)
1025 noconfigdirs="$noconfigdirs gdb ld"
1026 ;;
1027 hppa*64*-*-linux*)
1028 ;;
1029 hppa*-*-linux*)
1030 ;;
1031 hppa*-*-*elf* | \
1032 hppa*-*-lites* | \
1033 hppa*-*-openbsd* | \
1034 hppa*64*-*-*)
1035 ;;
1036 hppa*-*-pro*)
1037 ;;
1038 hppa*-*-*)
1039 noconfigdirs="$noconfigdirs ld"
1040 ;;
1041 i960-*-*)
1042 noconfigdirs="$noconfigdirs gdb"
1043 ;;
1044 ia64*-*-elf*)
1045 # No gdb support yet.
1046 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1047 ;;
1048 ia64*-**-hpux*)
1049 # No ld support yet.
1050 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1051 ;;
1052 ia64*-*-*vms*)
1053 # No ld support yet.
1054 noconfigdirs="$noconfigdirs libgui itcl ld"
1055 ;;
1056 i[[3456789]]86-w64-mingw*)
1057 ;;
1058 i[[3456789]]86-*-mingw*)
1059 target_configdirs="$target_configdirs target-winsup"
1060 ;;
1061 *-*-cygwin*)
1062 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1063 noconfigdirs="$noconfigdirs target-libgloss"
1064 # always build newlib if winsup directory is present.
1065 if test -d "$srcdir/winsup/cygwin"; then
1066 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1067 elif test -d "$srcdir/newlib"; then
1068 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1069 fi
1070 ;;
1071 i[[3456789]]86-*-pe)
1072 noconfigdirs="$noconfigdirs target-libgloss"
1073 ;;
1074 i[[3456789]]86-*-sco3.2v5*)
1075 # The linker does not yet know about weak symbols in COFF,
1076 # and is not configured to handle mixed ELF and COFF.
1077 noconfigdirs="$noconfigdirs ld target-libgloss"
1078 ;;
1079 i[[3456789]]86-*-sco*)
1080 noconfigdirs="$noconfigdirs gprof target-libgloss"
1081 ;;
1082 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1083 noconfigdirs="$noconfigdirs target-libgloss"
1084 ;;
1085 i[[3456789]]86-*-sysv4*)
1086 noconfigdirs="$noconfigdirs target-libgloss"
1087 ;;
1088 i[[3456789]]86-*-beos*)
1089 noconfigdirs="$noconfigdirs gdb"
1090 ;;
1091 i[[3456789]]86-*-rdos*)
1092 noconfigdirs="$noconfigdirs gdb"
1093 ;;
1094 mmix-*-*)
1095 noconfigdirs="$noconfigdirs gdb"
1096 ;;
1097 mt-*-*)
1098 noconfigdirs="$noconfigdirs sim"
1099 ;;
1100 nfp-*-*)
1101 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1102 noconfigdirs="$noconfigdirs $target_libraries"
1103 ;;
1104 powerpc-*-aix*)
1105 # copied from rs6000-*-* entry
1106 noconfigdirs="$noconfigdirs gprof"
1107 ;;
1108 powerpc*-*-winnt* | powerpc*-*-pe*)
1109 target_configdirs="$target_configdirs target-winsup"
1110 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1111 # always build newlib.
1112 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1113 ;;
1114 # This is temporary until we can link against shared libraries
1115 powerpcle-*-solaris*)
1116 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1117 ;;
1118 powerpc-*-beos*)
1119 noconfigdirs="$noconfigdirs gdb"
1120 ;;
1121 rs6000-*-lynxos*)
1122 noconfigdirs="$noconfigdirs gprof"
1123 ;;
1124 rs6000-*-aix*)
1125 noconfigdirs="$noconfigdirs gprof"
1126 ;;
1127 rs6000-*-*)
1128 noconfigdirs="$noconfigdirs gprof"
1129 ;;
1130 m68k-apollo-*)
1131 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1132 ;;
1133 microblaze*)
1134 noconfigdirs="$noconfigdirs gprof"
1135 ;;
1136 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1137 if test x$with_newlib = xyes; then
1138 noconfigdirs="$noconfigdirs gprof"
1139 fi
1140 ;;
1141 mips*-*-irix5*)
1142 noconfigdirs="$noconfigdirs gprof target-libgloss"
1143 ;;
1144 mips*-*-irix6*)
1145 noconfigdirs="$noconfigdirs gprof target-libgloss"
1146 ;;
1147 mips*-*-bsd*)
1148 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1149 ;;
1150 mips*-*-linux*)
1151 ;;
1152 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1153 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1154 noconfigdirs="$noconfigdirs ld gas gprof"
1155 ;;
1156 mips*-*-*)
1157 noconfigdirs="$noconfigdirs gprof"
1158 ;;
1159 nvptx*-*-*)
1160 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1161 ;;
1162 sh-*-*)
1163 case "${target}" in
1164 sh*-*-elf)
1165 ;;
1166 *)
1167 noconfigdirs="$noconfigdirs target-libgloss" ;;
1168 esac
1169 ;;
1170 sparc-*-sunos4*)
1171 if test x${is_cross_compiler} = xno ; then
1172 use_gnu_ld=no
1173 fi
1174 ;;
1175 tic6x-*-*)
1176 noconfigdirs="$noconfigdirs sim"
1177 ;;
1178 tilepro*-*-* | tilegx*-*-*)
1179 noconfigdirs="$noconfigdirs sim"
1180 ;;
1181 v810-*-*)
1182 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1183 ;;
1184 vax-*-*)
1185 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1186 ;;
1187 wasm32-*-*)
1188 noconfigdirs="$noconfigdirs ld"
1189 ;;
1190 esac
1191
1192 # If we aren't building newlib, then don't build libgloss, since libgloss
1193 # depends upon some newlib header files.
1194 case "${noconfigdirs}" in
1195 *target-libgloss*) ;;
1196 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1197 esac
1198
1199 # Work in distributions that contain no compiler tools, like Autoconf.
1200 host_makefile_frag=/dev/null
1201 if test -d ${srcdir}/config ; then
1202 case "${host}" in
1203 i[[3456789]]86-*-msdosdjgpp*)
1204 host_makefile_frag="config/mh-djgpp"
1205 ;;
1206 *-cygwin*)
1207 ACX_CHECK_CYGWIN_CAT_WORKS
1208 host_makefile_frag="config/mh-cygwin"
1209 ;;
1210 *-mingw*)
1211 host_makefile_frag="config/mh-mingw"
1212 ;;
1213 alpha*-linux*)
1214 host_makefile_frag="config/mh-alpha-linux"
1215 ;;
1216 hppa*-hp-hpux10*)
1217 host_makefile_frag="config/mh-pa-hpux10"
1218 ;;
1219 hppa*-hp-hpux*)
1220 host_makefile_frag="config/mh-pa"
1221 ;;
1222 hppa*-*)
1223 host_makefile_frag="config/mh-pa"
1224 ;;
1225 *-*-darwin*)
1226 host_makefile_frag="config/mh-darwin"
1227 ;;
1228 powerpc-*-aix*)
1229 host_makefile_frag="config/mh-ppc-aix"
1230 ;;
1231 rs6000-*-aix*)
1232 host_makefile_frag="config/mh-ppc-aix"
1233 ;;
1234 esac
1235 fi
1236
1237 if test "${build}" != "${host}" ; then
1238 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1239 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1240 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1241 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1242 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1243 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1244 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1245 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1246 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1247 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1248 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1249 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1250 else
1251 AR_FOR_BUILD="\$(AR)"
1252 AS_FOR_BUILD="\$(AS)"
1253 CC_FOR_BUILD="\$(CC)"
1254 CXX_FOR_BUILD="\$(CXX)"
1255 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1256 GOC_FOR_BUILD="\$(GOC)"
1257 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1258 LD_FOR_BUILD="\$(LD)"
1259 NM_FOR_BUILD="\$(NM)"
1260 RANLIB_FOR_BUILD="\$(RANLIB)"
1261 WINDRES_FOR_BUILD="\$(WINDRES)"
1262 WINDMC_FOR_BUILD="\$(WINDMC)"
1263 fi
1264
1265 AC_PROG_CC
1266 AC_PROG_CXX
1267
1268 # We must set the default linker to the linker used by gcc for the correct
1269 # operation of libtool. If LD is not defined and we are using gcc, try to
1270 # set the LD default to the ld used by gcc.
1271 if test -z "$LD"; then
1272 if test "$GCC" = yes; then
1273 case $build in
1274 *-*-mingw*)
1275 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1276 *)
1277 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1278 esac
1279 case $gcc_prog_ld in
1280 # Accept absolute paths.
1281 [[\\/]* | [A-Za-z]:[\\/]*)]
1282 LD="$gcc_prog_ld" ;;
1283 esac
1284 fi
1285 fi
1286
1287 # Check whether -static-libstdc++ -static-libgcc is supported.
1288 have_static_libs=no
1289 if test "$GCC" = yes; then
1290 saved_LDFLAGS="$LDFLAGS"
1291
1292 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1293 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1294 AC_LANG_PUSH(C++)
1295 AC_LINK_IFELSE([AC_LANG_SOURCE([
1296 #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1297 #error -static-libstdc++ not implemented
1298 #endif
1299 int main() {}])],
1300 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1301 [AC_MSG_RESULT([no])])
1302 AC_LANG_POP(C++)
1303
1304 LDFLAGS="$saved_LDFLAGS"
1305 fi
1306
1307 ACX_PROG_GNAT
1308 ACX_PROG_CMP_IGNORE_INITIAL
1309
1310 AC_ARG_ENABLE([bootstrap],
1311 [AS_HELP_STRING([--enable-bootstrap],
1312 [enable bootstrapping @<:@yes if native build@:>@])],,
1313 enable_bootstrap=default)
1314
1315 # Issue errors and warnings for invalid/strange bootstrap combinations.
1316 if test -r $srcdir/gcc/configure; then
1317 have_compiler=yes
1318 else
1319 have_compiler=no
1320 fi
1321
1322 case "$have_compiler:$host:$target:$enable_bootstrap" in
1323 *:*:*:no) ;;
1324
1325 # Default behavior. Enable bootstrap if we have a compiler
1326 # and we are in a native configuration.
1327 yes:$build:$build:default)
1328 enable_bootstrap=yes ;;
1329
1330 *:*:*:default)
1331 enable_bootstrap=no ;;
1332
1333 # We have a compiler and we are in a native configuration, bootstrap is ok
1334 yes:$build:$build:yes)
1335 ;;
1336
1337 # Other configurations, but we have a compiler. Assume the user knows
1338 # what he's doing.
1339 yes:*:*:yes)
1340 AC_MSG_WARN([trying to bootstrap a cross compiler])
1341 ;;
1342
1343 # No compiler: if they passed --enable-bootstrap explicitly, fail
1344 no:*:*:yes)
1345 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1346
1347 # Fail if wrong command line
1348 *)
1349 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1350 ;;
1351 esac
1352
1353 # When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1354 # C++98 compiler can still start the bootstrap.
1355 if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1356 CXX="$CXX -std=gnu++98"
1357 fi
1358
1359 # Used for setting $lt_cv_objdir
1360 _LT_CHECK_OBJDIR
1361
1362 # Check for GMP, MPFR and MPC
1363 gmplibs="-lmpc -lmpfr -lgmp"
1364 gmpinc=
1365 have_gmp=no
1366
1367 # Check for debuginfod
1368 AC_DEBUGINFOD
1369
1370 # Specify a location for mpc
1371 # check for this first so it ends up on the link line before mpfr.
1372 AC_ARG_WITH(mpc,
1373 [AS_HELP_STRING([--with-mpc=PATH],
1374 [specify prefix directory for installed MPC package.
1375 Equivalent to --with-mpc-include=PATH/include
1376 plus --with-mpc-lib=PATH/lib])])
1377 AC_ARG_WITH(mpc-include,
1378 [AS_HELP_STRING([--with-mpc-include=PATH],
1379 [specify directory for installed MPC include files])])
1380 AC_ARG_WITH(mpc-lib,
1381 [AS_HELP_STRING([--with-mpc-lib=PATH],
1382 [specify directory for the installed MPC library])])
1383
1384 if test "x$with_mpc" != x; then
1385 gmplibs="-L$with_mpc/lib $gmplibs"
1386 gmpinc="-I$with_mpc/include $gmpinc"
1387 fi
1388 if test "x$with_mpc_include" != x; then
1389 gmpinc="-I$with_mpc_include $gmpinc"
1390 fi
1391 if test "x$with_mpc_lib" != x; then
1392 gmplibs="-L$with_mpc_lib $gmplibs"
1393 fi
1394 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1395 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1396 gmpinc='-I$$s/mpc/src '"$gmpinc"
1397 # Do not test the mpc version. Assume that it is sufficient, since
1398 # it is in the source tree, and the library has not been built yet
1399 # but it would be included on the link line in the version check below
1400 # hence making the test fail.
1401 have_gmp=yes
1402 fi
1403
1404 # Specify a location for mpfr
1405 # check for this first so it ends up on the link line before gmp.
1406 AC_ARG_WITH(mpfr-dir,
1407 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1408 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1409 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1410
1411 AC_ARG_WITH(mpfr,
1412 [AS_HELP_STRING([--with-mpfr=PATH],
1413 [specify prefix directory for installed MPFR package.
1414 Equivalent to --with-mpfr-include=PATH/include
1415 plus --with-mpfr-lib=PATH/lib])])
1416 AC_ARG_WITH(mpfr-include,
1417 [AS_HELP_STRING([--with-mpfr-include=PATH],
1418 [specify directory for installed MPFR include files])])
1419 AC_ARG_WITH(mpfr-lib,
1420 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1421 [specify directory for the installed MPFR library])])
1422
1423 if test "x$with_mpfr" != x; then
1424 gmplibs="-L$with_mpfr/lib $gmplibs"
1425 gmpinc="-I$with_mpfr/include $gmpinc"
1426 fi
1427 if test "x$with_mpfr_include" != x; then
1428 gmpinc="-I$with_mpfr_include $gmpinc"
1429 fi
1430 if test "x$with_mpfr_lib" != x; then
1431 gmplibs="-L$with_mpfr_lib $gmplibs"
1432 fi
1433 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1434 # MPFR v3.1.0 moved the sources into a src sub-directory.
1435 if ! test -d ${srcdir}/mpfr/src; then
1436 AC_MSG_ERROR([dnl
1437 Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1438 fi
1439 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1440 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1441 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1442 # Do not test the mpfr version. Assume that it is sufficient, since
1443 # it is in the source tree, and the library has not been built yet
1444 # but it would be included on the link line in the version check below
1445 # hence making the test fail.
1446 have_gmp=yes
1447 fi
1448
1449 # Specify a location for gmp
1450 AC_ARG_WITH(gmp-dir,
1451 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1452 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1453 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1454
1455 AC_ARG_WITH(gmp,
1456 [AS_HELP_STRING([--with-gmp=PATH],
1457 [specify prefix directory for the installed GMP package.
1458 Equivalent to --with-gmp-include=PATH/include
1459 plus --with-gmp-lib=PATH/lib])])
1460 AC_ARG_WITH(gmp-include,
1461 [AS_HELP_STRING([--with-gmp-include=PATH],
1462 [specify directory for installed GMP include files])])
1463 AC_ARG_WITH(gmp-lib,
1464 [AS_HELP_STRING([--with-gmp-lib=PATH],
1465 [specify directory for the installed GMP library])])
1466
1467
1468 if test "x$with_gmp" != x; then
1469 gmplibs="-L$with_gmp/lib $gmplibs"
1470 gmpinc="-I$with_gmp/include $gmpinc"
1471 fi
1472 if test "x$with_gmp_include" != x; then
1473 gmpinc="-I$with_gmp_include $gmpinc"
1474 fi
1475 if test "x$with_gmp_lib" != x; then
1476 gmplibs="-L$with_gmp_lib $gmplibs"
1477 fi
1478 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1479 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1480 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1481 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1482 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1483 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1484 # Do not test the gmp version. Assume that it is sufficient, since
1485 # it is in the source tree, and the library has not been built yet
1486 # but it would be included on the link line in the version check below
1487 # hence making the test fail.
1488 have_gmp=yes
1489 fi
1490
1491 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1492 have_gmp=yes
1493 saved_CFLAGS="$CFLAGS"
1494 CFLAGS="$CFLAGS $gmpinc"
1495 # Check for the recommended and required versions of GMP.
1496 AC_MSG_CHECKING([for the correct version of gmp.h])
1497 AC_TRY_COMPILE([#include "gmp.h"],[
1498 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1499 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1500 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1501 choke me
1502 #endif
1503 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1504 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1505 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1506 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1507 choke me
1508 #endif
1509 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1510 [AC_MSG_RESULT([no]); have_gmp=no])
1511
1512 # If we have GMP, check the MPFR version.
1513 if test x"$have_gmp" = xyes; then
1514 # Check for the recommended and required versions of MPFR.
1515 AC_MSG_CHECKING([for the correct version of mpfr.h])
1516 AC_TRY_COMPILE([#include <gmp.h>
1517 #include <mpfr.h>],[
1518 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1519 choke me
1520 #endif
1521 ], [AC_TRY_COMPILE([#include <gmp.h>
1522 #include <mpfr.h>],[
1523 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1524 choke me
1525 #endif
1526 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1527 [AC_MSG_RESULT([no]); have_gmp=no])
1528 fi
1529
1530 # Check for the MPC header version.
1531 if test x"$have_gmp" = xyes ; then
1532 # Check for the recommended and required versions of MPC.
1533 AC_MSG_CHECKING([for the correct version of mpc.h])
1534 AC_TRY_COMPILE([#include <mpc.h>],[
1535 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1536 choke me
1537 #endif
1538 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1539 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1540 choke me
1541 #endif
1542 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1543 [AC_MSG_RESULT([no]); have_gmp=no])
1544 fi
1545
1546 # Now check the MPFR library.
1547 if test x"$have_gmp" = xyes; then
1548 saved_LIBS="$LIBS"
1549 LIBS="$LIBS $gmplibs"
1550 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1551 AC_TRY_LINK([#include <mpc.h>],[
1552 mpfr_t n;
1553 mpfr_t x;
1554 mpc_t c;
1555 int t;
1556 mpfr_init (n);
1557 mpfr_init (x);
1558 mpfr_atan2 (n, n, x, GMP_RNDN);
1559 mpfr_erfc (n, x, GMP_RNDN);
1560 mpfr_subnormalize (x, t, GMP_RNDN);
1561 mpfr_clear(n);
1562 mpfr_clear(x);
1563 mpc_init2 (c, 53);
1564 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1565 mpc_cosh (c, c, MPC_RNDNN);
1566 mpc_pow (c, c, c, MPC_RNDNN);
1567 mpc_acosh (c, c, MPC_RNDNN);
1568 mpc_clear (c);
1569 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1570 LIBS="$saved_LIBS"
1571 fi
1572
1573 CFLAGS="$saved_CFLAGS"
1574
1575 # The library versions listed in the error message below should match
1576 # the HARD-minimums enforced above.
1577 if test x$have_gmp != xyes; then
1578 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1579 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1580 their locations. Source code for these libraries can be found at
1581 their respective hosting sites as well as at
1582 ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1583 http://gcc.gnu.org/install/prerequisites.html for additional info. If
1584 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1585 make sure that you have installed both the libraries and the header
1586 files. They may be located in separate packages.])
1587 fi
1588 fi
1589
1590 # Flags needed for both GMP, MPFR and/or MPC.
1591 AC_SUBST(gmplibs)
1592 AC_SUBST(gmpinc)
1593 AC_SUBST(extra_mpfr_configure_flags)
1594 AC_SUBST(extra_mpc_gmp_configure_flags)
1595 AC_SUBST(extra_mpc_mpfr_configure_flags)
1596 AC_SUBST(extra_isl_gmp_configure_flags)
1597
1598 # Libraries to use for stage1 or when not bootstrapping.
1599 AC_ARG_WITH(stage1-libs,
1600 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1601 [if test "$withval" = "no" -o "$withval" = "yes"; then
1602 stage1_libs=
1603 else
1604 stage1_libs=$withval
1605 fi],
1606 [stage1_libs=])
1607 AC_SUBST(stage1_libs)
1608
1609 # Whether or not to use -static-libstdc++ and -static-libgcc. The
1610 # default is yes if gcc is being built; no otherwise. The reason for
1611 # this default is that gdb is sometimes linked against GNU Source
1612 # Highlight, which is a shared library that uses C++ exceptions. In
1613 # this case, -static-libstdc++ will cause crashes.
1614 AC_ARG_WITH(static-standard-libraries,
1615 [AS_HELP_STRING([--with-static-standard-libraries],
1616 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1617 [], [with_static_standard_libraries=auto])
1618 if test "$with_static_standard_libraries" = auto; then
1619 with_static_standard_libraries=$have_compiler
1620 fi
1621
1622 # Linker flags to use for stage1 or when not bootstrapping.
1623 AC_ARG_WITH(stage1-ldflags,
1624 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1625 [if test "$withval" = "no" -o "$withval" = "yes"; then
1626 stage1_ldflags=
1627 else
1628 stage1_ldflags=$withval
1629 fi],
1630 [stage1_ldflags=
1631 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1632 # if supported. But if the user explicitly specified the libraries to use,
1633 # trust that they are doing what they want.
1634 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1635 -a "$have_static_libs" = yes; then
1636 stage1_ldflags="-static-libstdc++ -static-libgcc"
1637 fi])
1638 AC_SUBST(stage1_ldflags)
1639
1640 # Libraries to use for stage2 and later builds.
1641 AC_ARG_WITH(boot-libs,
1642 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1643 [if test "$withval" = "no" -o "$withval" = "yes"; then
1644 poststage1_libs=
1645 else
1646 poststage1_libs=$withval
1647 fi],
1648 [poststage1_libs=])
1649 AC_SUBST(poststage1_libs)
1650
1651 # Linker flags to use for stage2 and later builds.
1652 AC_ARG_WITH(boot-ldflags,
1653 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1654 [linker flags for stage2 and later])],
1655 [if test "$withval" = "no" -o "$withval" = "yes"; then
1656 poststage1_ldflags=
1657 else
1658 poststage1_ldflags=$withval
1659 fi],
1660 [poststage1_ldflags=
1661 # In stages 2 and 3, default to linking libstdc++ and libgcc
1662 # statically. But if the user explicitly specified the libraries to
1663 # use, trust that they are doing what they want.
1664 if test "$poststage1_libs" = ""; then
1665 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1666 fi])
1667 AC_SUBST(poststage1_ldflags)
1668
1669 # GCC GRAPHITE dependency isl.
1670 # Basic setup is inlined here, actual checks are in config/isl.m4
1671
1672 AC_ARG_WITH(isl,
1673 [AS_HELP_STRING(
1674 [--with-isl=PATH],
1675 [Specify prefix directory for the installed isl package.
1676 Equivalent to --with-isl-include=PATH/include
1677 plus --with-isl-lib=PATH/lib])])
1678
1679 # Treat --without-isl as a request to disable
1680 # GRAPHITE support and skip all following checks.
1681 if test "x$with_isl" != "xno"; then
1682 # Check for isl
1683 dnl Provide configure switches and initialize islinc & isllibs
1684 dnl with user input.
1685 ISL_INIT_FLAGS
1686 dnl The versions of isl that work for Graphite
1687 ISL_CHECK_VERSION()
1688 dnl Only execute fail-action, if isl has been requested.
1689 ISL_IF_FAILED([
1690 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
1691 fi
1692
1693 # If the isl check failed, disable builds of in-tree variant of isl
1694 if test "x$with_isl" = xno ||
1695 test "x$gcc_cv_isl" = xno; then
1696 noconfigdirs="$noconfigdirs isl"
1697 islinc=
1698 fi
1699
1700 AC_SUBST(isllibs)
1701 AC_SUBST(islinc)
1702
1703 # Check for LTO support.
1704 AC_ARG_ENABLE(lto,
1705 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1706 enable_lto=$enableval,
1707 enable_lto=yes; default_enable_lto=yes)
1708
1709 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1710 build_lto_plugin=yes
1711 ],[if test x"$default_enable_lto" = x"yes" ; then
1712 case $target in
1713 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
1714 # On other non-ELF platforms, LTO has yet to be validated.
1715 *) enable_lto=no ;;
1716 esac
1717 else
1718 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1719 # It would also be nice to check the binutils support, but we don't
1720 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1721 # warn during gcc/ subconfigure; unless you're bootstrapping with
1722 # -flto it won't be needed until after installation anyway.
1723 case $target in
1724 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
1725 *) if test x"$enable_lto" = x"yes"; then
1726 AC_MSG_ERROR([LTO support is not enabled for this target.])
1727 fi
1728 ;;
1729 esac
1730 fi
1731 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1732 # Build it unless LTO was explicitly disabled.
1733 case $target in
1734 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1735 *) ;;
1736 esac
1737 ])
1738
1739 AC_ARG_ENABLE(linker-plugin-configure-flags,
1740 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1741 [additional flags for configuring linker plugins @<:@none@:>@])],
1742 extra_linker_plugin_configure_flags=$enableval,
1743 extra_linker_plugin_configure_flags=)
1744 AC_SUBST(extra_linker_plugin_configure_flags)
1745 AC_ARG_ENABLE(linker-plugin-flags,
1746 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1747 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1748 extra_linker_plugin_flags=$enableval,
1749 extra_linker_plugin_flags=)
1750 AC_SUBST(extra_linker_plugin_flags)
1751
1752 # Enable --enable-host-shared.
1753 # Checked early to determine whether jit is an 'all' language
1754 AC_ARG_ENABLE(host-shared,
1755 [AS_HELP_STRING([--enable-host-shared],
1756 [build host code as shared libraries])],
1757 [host_shared=$enableval], [host_shared=no])
1758 AC_SUBST(host_shared)
1759
1760 # By default, C and C++ are the only stage 1 languages.
1761 stage1_languages=,c,
1762
1763 # Target libraries that we bootstrap.
1764 bootstrap_target_libs=,target-libgcc,
1765
1766 # Figure out what language subdirectories are present.
1767 # Look if the user specified --enable-languages="..."; if not, use
1768 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1769 # go away some day.
1770 # NB: embedded tabs in this IF block -- do not untabify
1771 if test -d ${srcdir}/gcc; then
1772 if test x"${enable_languages+set}" != xset; then
1773 if test x"${LANGUAGES+set}" = xset; then
1774 enable_languages="${LANGUAGES}"
1775 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1776 else
1777 enable_languages=default
1778 fi
1779 else
1780 if test x"${enable_languages}" = x ||
1781 test x"${enable_languages}" = xyes;
1782 then
1783 echo configure.ac: --enable-languages needs at least one language argument 1>&2
1784 exit 1
1785 fi
1786 fi
1787 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1788
1789 # 'f95' is the old name for the 'fortran' language. We issue a warning
1790 # and make the substitution.
1791 case ,${enable_languages}, in
1792 *,f95,*)
1793 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1794 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1795 ;;
1796 esac
1797
1798 # If bootstrapping, C++ must be enabled.
1799 case ",$enable_languages,:$enable_bootstrap" in
1800 *,c++,*:*) ;;
1801 *:yes)
1802 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1803 enable_languages="${enable_languages},c++"
1804 else
1805 AC_MSG_ERROR([bootstrapping requires c++ sources])
1806 fi
1807 ;;
1808 esac
1809
1810 # First scan to see if an enabled language requires some other language.
1811 # We assume that a given config-lang.in will list all the language
1812 # front ends it requires, even if some are required indirectly.
1813 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1814 case ${lang_frag} in
1815 ..) ;;
1816 # The odd quoting in the next line works around
1817 # an apparent bug in bash 1.12 on linux.
1818 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1819 *)
1820 # From the config-lang.in, get $language, $lang_requires, and
1821 # $lang_requires_boot_languages.
1822 language=
1823 lang_requires=
1824 lang_requires_boot_languages=
1825 # set srcdir during sourcing lang_frag to the gcc dir.
1826 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1827 # polutes this shell
1828 saved_srcdir=${srcdir}
1829 srcdir=${srcdir}/gcc . ${lang_frag}
1830 srcdir=${saved_srcdir}
1831 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1832 case ,${enable_languages}, in
1833 *,$other,*) ;;
1834 *,default,*) ;;
1835 *,all,*) ;;
1836 *,$language,*)
1837 echo " \`$other' language required by \`$language'; enabling" 1>&2
1838 enable_languages="${enable_languages},${other}"
1839 ;;
1840 esac
1841 done
1842 for other in ${lang_requires_boot_languages} ; do
1843 if test "$other" != "c"; then
1844 case ,${enable_stage1_languages}, in
1845 *,$other,*) ;;
1846 *,default,*) ;;
1847 *,all,*) ;;
1848 *)
1849 case ,${enable_languages}, in
1850 *,$language,*)
1851 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1852 enable_stage1_languages="$enable_stage1_languages,${other}"
1853 ;;
1854 esac
1855 ;;
1856 esac
1857 fi
1858 done
1859 ;;
1860 esac
1861 done
1862
1863 new_enable_languages=,c,
1864
1865 # If LTO is enabled, add the LTO front end.
1866 if test "$enable_lto" = "yes" ; then
1867 case ,${enable_languages}, in
1868 *,lto,*) ;;
1869 *) enable_languages="${enable_languages},lto" ;;
1870 esac
1871 if test "${build_lto_plugin}" = "yes" ; then
1872 configdirs="$configdirs lto-plugin"
1873 fi
1874 fi
1875
1876 # If we're building an offloading compiler, add the LTO front end.
1877 if test x"$enable_as_accelerator_for" != x ; then
1878 case ,${enable_languages}, in
1879 *,lto,*) ;;
1880 *) enable_languages="${enable_languages},lto" ;;
1881 esac
1882 fi
1883
1884 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
1885 potential_languages=,c,
1886
1887 enabled_target_libs=
1888 disabled_target_libs=
1889
1890 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1891 case ${lang_frag} in
1892 ..) ;;
1893 # The odd quoting in the next line works around
1894 # an apparent bug in bash 1.12 on linux.
1895 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1896 *)
1897 # From the config-lang.in, get $language, $target_libs,
1898 # $lang_dirs, $boot_language, and $build_by_default
1899 language=
1900 target_libs=
1901 lang_dirs=
1902 subdir_requires=
1903 boot_language=no
1904 build_by_default=yes
1905 # set srcdir during sourcing. See above about save & restore
1906 saved_srcdir=${srcdir}
1907 srcdir=${srcdir}/gcc . ${lang_frag}
1908 srcdir=${saved_srcdir}
1909 if test x${language} = x; then
1910 echo "${lang_frag} doesn't set \$language." 1>&2
1911 exit 1
1912 fi
1913
1914 if test "$language" = "c++"; then
1915 boot_language=yes
1916 fi
1917
1918 add_this_lang=no
1919 # C is always enabled, so no need to add it again
1920 if test "$language" != "c"; then
1921 case ,${enable_languages}, in
1922 *,${language},*)
1923 # Language was explicitly selected; include it
1924 add_this_lang=yes
1925 ;;
1926 *,all,*)
1927 # All languages are enabled
1928 add_this_lang=all
1929 ;;
1930 *,default,*)
1931 # 'default' was selected, select it if it is a default language
1932 add_this_lang=${build_by_default}
1933 ;;
1934 esac
1935 fi
1936
1937 # Disable languages that need other directories if these aren't available.
1938 for i in $subdir_requires; do
1939 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1940 case ${add_this_lang} in
1941 yes)
1942 # Specifically requested language; tell them.
1943 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1944 ;;
1945 all)
1946 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
1947 add_this_lang=unsupported
1948 ;;
1949 *)
1950 # Silently disable.
1951 add_this_lang=unsupported
1952 ;;
1953 esac
1954 done
1955
1956 # Disable Ada if no preexisting GNAT is available.
1957 case ${add_this_lang}:${language}:${have_gnat} in
1958 yes:ada:no)
1959 # Specifically requested language; tell them.
1960 AC_MSG_ERROR([GNAT is required to build $language])
1961 ;;
1962 all:ada:no)
1963 AC_MSG_WARN([GNAT is required to build $language])
1964 add_this_lang=unsupported
1965 ;;
1966 *:ada:no)
1967 # Silently disable.
1968 add_this_lang=unsupported
1969 ;;
1970 esac
1971
1972 # Disable jit if -enable-host-shared not specified
1973 case ${add_this_lang}:${language}:${host_shared} in
1974 yes:jit:no)
1975 # PR jit/64780: explicitly specify --enable-host-shared
1976 AC_MSG_ERROR([
1977 Enabling language "jit" requires --enable-host-shared.
1978
1979 --enable-host-shared typically slows the rest of the compiler down by
1980 a few %, so you must explicitly enable it.
1981
1982 If you want to build both the jit and the regular compiler, it is often
1983 best to do this via two separate configure/builds, in separate
1984 directories, to avoid imposing the performance cost of
1985 --enable-host-shared on the regular compiler.])
1986 ;;
1987 all:jit:no)
1988 AC_MSG_WARN([--enable-host-shared required to build $language])
1989 add_this_lang=unsupported
1990 ;;
1991 *:jit:no)
1992 # Silently disable.
1993 add_this_lang=unsupported
1994 ;;
1995 esac
1996
1997 # Disable a language that is unsupported by the target.
1998 case "${add_this_lang}: $unsupported_languages " in
1999 no:*) ;;
2000 unsupported:*) ;;
2001 *:*" $language "*)
2002 AC_MSG_WARN([${language} not supported for this target])
2003 add_this_lang=unsupported
2004 ;;
2005 esac
2006
2007 case $add_this_lang in
2008 unsupported)
2009 # Remove language-dependent dirs.
2010 disabled_target_libs="$disabled_target_libs $target_libs"
2011 noconfigdirs="$noconfigdirs $lang_dirs"
2012 ;;
2013 no)
2014 # Remove language-dependent dirs; still show language as supported.
2015 disabled_target_libs="$disabled_target_libs $target_libs"
2016 noconfigdirs="$noconfigdirs $lang_dirs"
2017 potential_languages="${potential_languages}${language},"
2018 ;;
2019 all|yes)
2020 new_enable_languages="${new_enable_languages}${language},"
2021 potential_languages="${potential_languages}${language},"
2022 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2023 enabled_target_libs="$enabled_target_libs $target_libs"
2024 case "${boot_language}:,$enable_stage1_languages," in
2025 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2026 # Add to (comma-separated) list of stage 1 languages.
2027 case ",$stage1_languages," in
2028 *,$language,* | ,yes, | ,all,) ;;
2029 *) stage1_languages="${stage1_languages}${language}," ;;
2030 esac
2031 # We need to bootstrap any supporting libraries.
2032 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2033 ;;
2034 esac
2035 ;;
2036 esac
2037 ;;
2038 esac
2039 done
2040
2041 # Add target libraries which are only needed for disabled languages
2042 # to noconfigdirs.
2043 if test -n "$disabled_target_libs"; then
2044 for dir in $disabled_target_libs; do
2045 case " $enabled_target_libs " in
2046 *" ${dir} "*) ;;
2047 *) noconfigdirs="$noconfigdirs $dir" ;;
2048 esac
2049 done
2050 fi
2051
2052 AC_ARG_ENABLE(stage1-languages,
2053 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2054 [choose additional languages to build during
2055 stage1. Mostly useful for compiler development])],
2056 [case ,${enable_stage1_languages}, in
2057 ,no,|,,)
2058 # Set it to something that will have no effect in the loop below
2059 enable_stage1_languages=c ;;
2060 ,yes,)
2061 enable_stage1_languages=`echo $new_enable_languages | \
2062 sed -e "s/^,//" -e "s/,$//" ` ;;
2063 *,all,*)
2064 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2065 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2066 esac
2067
2068 # Add "good" languages from enable_stage1_languages to stage1_languages,
2069 # while "bad" languages go in missing_languages. Leave no duplicates.
2070 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2071 case $potential_languages in
2072 *,$i,*)
2073 case $stage1_languages in
2074 *,$i,*) ;;
2075 *) stage1_languages="$stage1_languages$i," ;;
2076 esac ;;
2077 *)
2078 case $missing_languages in
2079 *,$i,*) ;;
2080 *) missing_languages="$missing_languages$i," ;;
2081 esac ;;
2082 esac
2083 done])
2084
2085 # Remove leading/trailing commas that were added for simplicity
2086 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2087 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2088 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2089 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2090
2091 if test "x$missing_languages" != x; then
2092 AC_MSG_ERROR([
2093 The following requested languages could not be built: ${missing_languages}
2094 Supported languages are: ${potential_languages}])
2095 fi
2096 if test "x$new_enable_languages" != "x$enable_languages"; then
2097 echo The following languages will be built: ${new_enable_languages}
2098 enable_languages="$new_enable_languages"
2099 fi
2100
2101 AC_SUBST(stage1_languages)
2102 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2103 fi
2104
2105 # Handle --disable-<component> generically.
2106 for dir in $configdirs $build_configdirs $target_configdirs ; do
2107 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2108 varname=`echo $dirname | sed -e s/+/_/g`
2109 if eval test x\${enable_${varname}} "=" xno ; then
2110 noconfigdirs="$noconfigdirs $dir"
2111 fi
2112 done
2113
2114 # Check for Boehm's garbage collector
2115 AC_ARG_ENABLE(objc-gc,
2116 [AS_HELP_STRING([--enable-objc-gc],
2117 [enable use of Boehm's garbage collector with the
2118 GNU Objective-C runtime])])
2119 AC_ARG_WITH([target-bdw-gc],
2120 [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2121 [specify prefix directory for installed bdw-gc package.
2122 Equivalent to --with-target-bdw-gc-include=PATH/include
2123 plus --with-target-bdw-gc-lib=PATH/lib])])
2124 AC_ARG_WITH([target-bdw-gc-include],
2125 [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2126 [specify directories for installed bdw-gc include files])])
2127 AC_ARG_WITH([target-bdw-gc-lib],
2128 [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2129 [specify directories for installed bdw-gc library])])
2130
2131 case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2132 AC_MSG_CHECKING([for bdw garbage collector])
2133 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
2134 dnl no bdw-gw options, assume default locations
2135 AC_MSG_RESULT([using bdw-gc in default locations])
2136 else
2137 dnl bdw-gw options, first error checking, complete checking in libobjc
2138 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2139 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2140 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2141 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2142 else
2143 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2144 fi
2145 fi
2146 esac
2147
2148 # Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2149 case ,${enable_languages}, in
2150 *,c++,*)
2151 # Disable libitm, libsanitizer if we're not building libstdc++
2152 case "${noconfigdirs}" in
2153 *target-libstdc++-v3*)
2154 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
2155 ;;
2156 *) ;;
2157 esac
2158 ;;
2159 *)
2160 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2161 ;;
2162 esac
2163
2164 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2165 # $build_configdirs and $target_configdirs.
2166 # If we have the source for $noconfigdirs entries, add them to $notsupp.
2167
2168 notsupp=""
2169 for dir in . $skipdirs $noconfigdirs ; do
2170 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2171 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2172 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2173 if test -r $srcdir/$dirname/configure ; then
2174 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2175 true
2176 else
2177 notsupp="$notsupp $dir"
2178 fi
2179 fi
2180 fi
2181 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2182 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2183 if test -r $srcdir/$dirname/configure ; then
2184 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2185 true
2186 else
2187 notsupp="$notsupp $dir"
2188 fi
2189 fi
2190 fi
2191 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2192 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2193 if test -r $srcdir/$dirname/configure ; then
2194 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2195 true
2196 else
2197 notsupp="$notsupp $dir"
2198 fi
2199 fi
2200 fi
2201 done
2202
2203 # Quietly strip out all directories which aren't configurable in this tree.
2204 # This relies on all configurable subdirectories being autoconfiscated, which
2205 # is now the case.
2206 build_configdirs_all="$build_configdirs"
2207 build_configdirs=
2208 for i in ${build_configdirs_all} ; do
2209 j=`echo $i | sed -e s/build-//g`
2210 if test -f ${srcdir}/$j/configure ; then
2211 build_configdirs="${build_configdirs} $i"
2212 fi
2213 done
2214
2215 configdirs_all="$configdirs"
2216 configdirs=
2217 for i in ${configdirs_all} ; do
2218 if test -f ${srcdir}/$i/configure ; then
2219 configdirs="${configdirs} $i"
2220 fi
2221 done
2222
2223 target_configdirs_all="$target_configdirs"
2224 target_configdirs=
2225 for i in ${target_configdirs_all} ; do
2226 j=`echo $i | sed -e s/target-//g`
2227 if test -f ${srcdir}/$j/configure ; then
2228 target_configdirs="${target_configdirs} $i"
2229 fi
2230 done
2231
2232 # libiberty-linker-plugin is special: it doesn't have its own source directory,
2233 # so we have to add it after the preceding checks.
2234 if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2235 then
2236 case " $configdirs " in
2237 *" libiberty "*)
2238 # If we can build libiberty, we can also build libiberty-linker-plugin.
2239 configdirs="$configdirs libiberty-linker-plugin"
2240 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2241 --with-libiberty=../libiberty-linker-plugin";;
2242 *)
2243 AC_MSG_ERROR([libiberty missing]);;
2244 esac
2245 fi
2246
2247 # Sometimes we have special requirements for the host libiberty.
2248 extra_host_libiberty_configure_flags=
2249 extra_host_zlib_configure_flags=
2250 case " $configdirs " in
2251 *" lto-plugin "* | *" libcc1 "*)
2252 # When these are to be built as shared libraries, the same applies to
2253 # libiberty.
2254 extra_host_libiberty_configure_flags=--enable-shared
2255 ;;
2256 *" bfd "*)
2257 # When bfd is to be built as a shared library, the same applies to
2258 # zlib.
2259 if test "$enable_shared" = "yes"; then
2260 extra_host_zlib_configure_flags=--enable-host-shared
2261 fi
2262 ;;
2263 esac
2264 AC_SUBST(extra_host_libiberty_configure_flags)
2265 AC_SUBST(extra_host_zlib_configure_flags)
2266
2267 # Produce a warning message for the subdirs we can't configure.
2268 # This isn't especially interesting in the Cygnus tree, but in the individual
2269 # FSF releases, it's important to let people know when their machine isn't
2270 # supported by the one or two programs in a package.
2271
2272 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2273 # If $appdirs is non-empty, at least one of those directories must still
2274 # be configured, or we error out. (E.g., if the gas release supports a
2275 # specified target in some subdirs but not the gas subdir, we shouldn't
2276 # pretend that all is well.)
2277 if test -n "$appdirs" ; then
2278 for dir in $appdirs ; do
2279 if test -r $dir/Makefile.in ; then
2280 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2281 appdirs=""
2282 break
2283 fi
2284 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2285 appdirs=""
2286 break
2287 fi
2288 fi
2289 done
2290 if test -n "$appdirs" ; then
2291 echo "*** This configuration is not supported by this package." 1>&2
2292 exit 1
2293 fi
2294 fi
2295 # Okay, some application will build, or we don't care to check. Still
2296 # notify of subdirs not getting built.
2297 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2298 echo " ${notsupp}" 1>&2
2299 echo " (Any other directories should still work fine.)" 1>&2
2300 fi
2301
2302 case "$host" in
2303 *msdosdjgpp*)
2304 enable_gdbtk=no ;;
2305 esac
2306
2307 # To find our prefix, in gcc_cv_tool_prefix.
2308 ACX_TOOL_DIRS
2309
2310 copy_dirs=
2311
2312 AC_ARG_WITH([build-sysroot],
2313 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2314 [use sysroot as the system root during the build])],
2315 [if test x"$withval" != x ; then
2316 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2317 fi],
2318 [SYSROOT_CFLAGS_FOR_TARGET=])
2319 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2320
2321 AC_ARG_WITH([debug-prefix-map],
2322 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2323 [map A to B, C to D ... in debug information])],
2324 [if test x"$withval" != x; then
2325 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2326 for debug_map in $withval; do
2327 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2328 done
2329 fi],
2330 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2331 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2332
2333 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2334 # might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2335 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2336 # We want to ensure that TARGET libraries (which we know are built with
2337 # gcc) are built with "-O2 -g", so include those options when setting
2338 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2339 if test "x$CFLAGS_FOR_TARGET" = x; then
2340 if test "x${is_cross_compiler}" = xyes; then
2341 CFLAGS_FOR_TARGET="-g -O2"
2342 else
2343 CFLAGS_FOR_TARGET=$CFLAGS
2344 case " $CFLAGS " in
2345 *" -O2 "*) ;;
2346 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2347 esac
2348 case " $CFLAGS " in
2349 *" -g "* | *" -g3 "*) ;;
2350 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2351 esac
2352 fi
2353 fi
2354 AC_SUBST(CFLAGS_FOR_TARGET)
2355
2356 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2357 if test "x${is_cross_compiler}" = xyes; then
2358 CXXFLAGS_FOR_TARGET="-g -O2"
2359 else
2360 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2361 case " $CXXFLAGS " in
2362 *" -O2 "*) ;;
2363 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2364 esac
2365 case " $CXXFLAGS " in
2366 *" -g "* | *" -g3 "*) ;;
2367 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2368 esac
2369 fi
2370 fi
2371 AC_SUBST(CXXFLAGS_FOR_TARGET)
2372
2373 AC_SUBST(LDFLAGS_FOR_TARGET)
2374
2375 # Handle --with-headers=XXX. If the value is not "yes", the contents of
2376 # the named directory are copied to $(tooldir)/sys-include.
2377 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2378 if test x${is_cross_compiler} = xno ; then
2379 echo 1>&2 '***' --with-headers is only supported when cross compiling
2380 exit 1
2381 fi
2382 if test x"${with_headers}" != xyes ; then
2383 x=${gcc_cv_tool_prefix}
2384 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2385 fi
2386 fi
2387
2388 # Handle --with-libs=XXX. If the value is not "yes", the contents of
2389 # the name directories are copied to $(tooldir)/lib. Multiple directories
2390 # are permitted.
2391 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2392 if test x${is_cross_compiler} = xno ; then
2393 echo 1>&2 '***' --with-libs is only supported when cross compiling
2394 exit 1
2395 fi
2396 if test x"${with_libs}" != xyes ; then
2397 # Copy the libraries in reverse order, so that files in the first named
2398 # library override files in subsequent libraries.
2399 x=${gcc_cv_tool_prefix}
2400 for l in ${with_libs}; do
2401 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2402 done
2403 fi
2404 fi
2405
2406 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2407 #
2408 # This is done by determining whether or not the appropriate directory
2409 # is available, and by checking whether or not specific configurations
2410 # have requested that this magic not happen.
2411 #
2412 # The command line options always override the explicit settings in
2413 # configure.ac, and the settings in configure.ac override this magic.
2414 #
2415 # If the default for a toolchain is to use GNU as and ld, and you don't
2416 # want to do that, then you should use the --without-gnu-as and
2417 # --without-gnu-ld options for the configure script. Similarly, if
2418 # the default is to use the included zlib and you don't want to do that,
2419 # you should use the --with-system-zlib option for the configure script.
2420
2421 if test x${use_gnu_as} = x &&
2422 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2423 with_gnu_as=yes
2424 extra_host_args="$extra_host_args --with-gnu-as"
2425 fi
2426
2427 if test x${use_gnu_ld} = x &&
2428 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2429 with_gnu_ld=yes
2430 extra_host_args="$extra_host_args --with-gnu-ld"
2431 fi
2432
2433 if test x${use_included_zlib} = x &&
2434 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2435 :
2436 else
2437 with_system_zlib=yes
2438 extra_host_args="$extra_host_args --with-system-zlib"
2439 fi
2440
2441 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2442 # can detect this case.
2443
2444 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2445 with_newlib=yes
2446 extra_host_args="$extra_host_args --with-newlib"
2447 fi
2448
2449 # Handle ${copy_dirs}
2450 set fnord ${copy_dirs}
2451 shift
2452 while test $# != 0 ; do
2453 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2454 :
2455 else
2456 echo Copying $1 to $2
2457
2458 # Use the install script to create the directory and all required
2459 # parent directories.
2460 if test -d $2 ; then
2461 :
2462 else
2463 echo >config.temp
2464 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2465 fi
2466
2467 # Copy the directory, assuming we have tar.
2468 # FIXME: Should we use B in the second tar? Not all systems support it.
2469 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2470
2471 # It is the responsibility of the user to correctly adjust all
2472 # symlinks. If somebody can figure out how to handle them correctly
2473 # here, feel free to add the code.
2474
2475 echo $1 > $2/COPIED
2476 fi
2477 shift; shift
2478 done
2479
2480 # Determine a target-dependent exec_prefix that the installed
2481 # gcc will search in. Keep this list sorted by triplet, with
2482 # the *-*-osname triplets last.
2483 md_exec_prefix=
2484 case "${target}" in
2485 i[[34567]]86-pc-msdosdjgpp*)
2486 md_exec_prefix=/dev/env/DJDIR/bin
2487 ;;
2488 *-*-hpux* | \
2489 *-*-nto-qnx* | \
2490 *-*-solaris2*)
2491 md_exec_prefix=/usr/ccs/bin
2492 ;;
2493 esac
2494
2495 extra_arflags_for_target=
2496 extra_nmflags_for_target=
2497 extra_ranlibflags_for_target=
2498 target_makefile_frag=/dev/null
2499 case "${target}" in
2500 spu-*-*)
2501 target_makefile_frag="config/mt-spu"
2502 ;;
2503 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2504 target_makefile_frag="config/mt-sde"
2505 ;;
2506 mipsisa*-*-elfoabi*)
2507 target_makefile_frag="config/mt-mips-elfoabi"
2508 ;;
2509 mips*-*-*linux* | mips*-*-gnu*)
2510 target_makefile_frag="config/mt-mips-gnu"
2511 ;;
2512 nios2-*-elf*)
2513 target_makefile_frag="config/mt-nios2-elf"
2514 ;;
2515 *-*-linux-android*)
2516 target_makefile_frag="config/mt-android"
2517 ;;
2518 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2519 target_makefile_frag="config/mt-gnu"
2520 ;;
2521 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2522 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2523 # commands to handle both 32-bit and 64-bit objects. These flags are
2524 # harmless if we're using GNU nm or ar.
2525 extra_arflags_for_target=" -X32_64"
2526 extra_nmflags_for_target=" -B -X32_64"
2527 ;;
2528 esac
2529
2530 alphaieee_frag=/dev/null
2531 case $target in
2532 alpha*-*-*)
2533 # This just makes sure to use the -mieee option to build target libs.
2534 # This should probably be set individually by each library.
2535 alphaieee_frag="config/mt-alphaieee"
2536 ;;
2537 esac
2538
2539 # If --enable-target-optspace always use -Os instead of -O2 to build
2540 # the target libraries, similarly if it is not specified, use -Os
2541 # on selected platforms.
2542 ospace_frag=/dev/null
2543 case "${enable_target_optspace}:${target}" in
2544 yes:*)
2545 ospace_frag="config/mt-ospace"
2546 ;;
2547 :d30v-*)
2548 ospace_frag="config/mt-d30v"
2549 ;;
2550 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2551 ospace_frag="config/mt-ospace"
2552 ;;
2553 no:* | :*)
2554 ;;
2555 *)
2556 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2557 ;;
2558 esac
2559
2560 # Some systems (e.g., one of the i386-aix systems the gas testers are
2561 # using) don't handle "\$" correctly, so don't use it here.
2562 tooldir='${exec_prefix}'/${target_noncanonical}
2563 build_tooldir=${tooldir}
2564
2565 # Create a .gdbinit file which runs the one in srcdir
2566 # and tells GDB to look there for source files.
2567
2568 if test -r ${srcdir}/.gdbinit ; then
2569 case ${srcdir} in
2570 .) ;;
2571 *) cat > ./.gdbinit <<EOF
2572 # ${NO_EDIT}
2573 dir ${srcdir}
2574 dir .
2575 source ${srcdir}/.gdbinit
2576 EOF
2577 ;;
2578 esac
2579 fi
2580
2581 # Make sure that the compiler is able to generate an executable. If it
2582 # can't, we are probably in trouble. We don't care whether we can run the
2583 # executable--we might be using a cross compiler--we only care whether it
2584 # can be created. At this point the main configure script has set CC.
2585 we_are_ok=no
2586 echo "int main () { return 0; }" > conftest.c
2587 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2588 if test $? = 0 ; then
2589 if test -s conftest || test -s conftest.exe ; then
2590 we_are_ok=yes
2591 fi
2592 fi
2593 case $we_are_ok in
2594 no)
2595 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2596 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2597 rm -f conftest*
2598 exit 1
2599 ;;
2600 esac
2601 rm -f conftest*
2602
2603 # Decide which environment variable is used to find dynamic libraries.
2604 case "${host}" in
2605 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2606 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2607 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2608 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2609 esac
2610
2611 # On systems where the dynamic library environment variable is PATH,
2612 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2613 # built executables to PATH.
2614 if test "$RPATH_ENVVAR" = PATH; then
2615 GCC_SHLIB_SUBDIR=/shlib
2616 else
2617 GCC_SHLIB_SUBDIR=
2618 fi
2619
2620 # Adjust the toplevel makefile according to whether bootstrap was selected.
2621 case $enable_bootstrap in
2622 yes)
2623 bootstrap_suffix=bootstrap
2624 BUILD_CONFIG=bootstrap-debug
2625 ;;
2626 no)
2627 bootstrap_suffix=no-bootstrap
2628 BUILD_CONFIG=
2629 ;;
2630 esac
2631
2632 AC_MSG_CHECKING(for default BUILD_CONFIG)
2633
2634 AC_ARG_WITH([build-config],
2635 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2636 [use config/NAME.mk build configuration])],
2637 [case $with_build_config in
2638 yes) with_build_config= ;;
2639 no) with_build_config= BUILD_CONFIG= ;;
2640 esac])
2641
2642 if test "x${with_build_config}" != x; then
2643 BUILD_CONFIG=$with_build_config
2644 else
2645 case $BUILD_CONFIG in
2646 bootstrap-debug)
2647 if echo "int f (void) { return 0; }" > conftest.c &&
2648 ${CC} -c conftest.c &&
2649 mv conftest.o conftest.o.g0 &&
2650 ${CC} -c -g conftest.c &&
2651 mv conftest.o conftest.o.g &&
2652 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2653 :
2654 else
2655 BUILD_CONFIG=
2656 fi
2657 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2658 ;;
2659 esac
2660 fi
2661 AC_MSG_RESULT($BUILD_CONFIG)
2662 AC_SUBST(BUILD_CONFIG)
2663
2664 # Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2665 AC_MSG_CHECKING([for --enable-vtable-verify])
2666 AC_ARG_ENABLE(vtable-verify,
2667 [AS_HELP_STRING([--enable-vtable-verify],
2668 [Enable vtable verification feature])],
2669 [case "$enableval" in
2670 yes) enable_vtable_verify=yes ;;
2671 no) enable_vtable_verify=no ;;
2672 *) enable_vtable_verify=no;;
2673 esac],
2674 [enable_vtable_verify=no])
2675 AC_MSG_RESULT($enable_vtable_verify)
2676
2677 # Record target_configdirs and the configure arguments for target and
2678 # build configuration in Makefile.
2679 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2680 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2681 bootstrap_fixincludes=no
2682
2683 # If we are building libgomp, bootstrap it.
2684 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2685 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2686 fi
2687
2688 # If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2689 # or bootstrap-ubsan, bootstrap it.
2690 if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2691 case "$BUILD_CONFIG" in
2692 *bootstrap-asan* | *bootstrap-ubsan* )
2693 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2694 bootstrap_fixincludes=yes
2695 ;;
2696 esac
2697 fi
2698
2699 # If we are building libvtv and --enable-vtable-verify, bootstrap it.
2700 if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2701 test "$enable_vtable_verify" != no; then
2702 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2703 fi
2704
2705 # Determine whether gdb needs tk/tcl or not.
2706 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2707 # and in that case we want gdb to be built without tk. Ugh!
2708 # In fact I believe gdb is the *only* package directly dependent on tk,
2709 # so we should be able to put the 'maybe's in unconditionally and
2710 # leave out the maybe dependencies when enable_gdbtk is false. I'm not
2711 # 100% sure that that's safe though.
2712
2713 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2714 case "$enable_gdbtk" in
2715 no)
2716 GDB_TK="" ;;
2717 yes)
2718 GDB_TK="${gdb_tk}" ;;
2719 *)
2720 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2721 # distro. Eventually someone will fix this and move Insight, nee
2722 # gdbtk to a separate directory.
2723 if test -d ${srcdir}/gdb/gdbtk ; then
2724 GDB_TK="${gdb_tk}"
2725 else
2726 GDB_TK=""
2727 fi
2728 ;;
2729 esac
2730 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2731 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2732
2733 # gdb depends on gnulib, but as nothing else does, only include it if
2734 # gdb is built.
2735 if echo " ${configdirs} " | grep " gdb " > /dev/null 2>&1 ; then
2736 # The Makefile provides the ordering, so it's enough here to add
2737 # gnulib to the list.
2738 configdirs="${configdirs} gnulib"
2739 fi
2740
2741 # Strip out unwanted targets.
2742
2743 # While at that, we remove Makefiles if we were started for recursive
2744 # configuration, so that the top-level Makefile reconfigures them,
2745 # like we used to do when configure itself was recursive.
2746
2747 # Loop over modules. We used to use the "$extrasub" feature from Autoconf
2748 # but now we're fixing up the Makefile ourselves with the additional
2749 # commands passed to AC_CONFIG_FILES. Use separate variables
2750 # extrasub-{build,host,target} not because there is any reason to split
2751 # the substitutions up that way, but only to remain below the limit of
2752 # 99 commands in a script, for HP-UX sed.
2753
2754 # Do not nest @if/@endif or @unless/@endunless pairs, because
2755 # configure will not warn you at all.
2756
2757 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2758 yes:yes:*\ gold\ *:*,c++,*) ;;
2759 yes:yes:*\ gold\ *:*)
2760 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2761 ;;
2762 esac
2763
2764 extrasub_build=
2765 for module in ${build_configdirs} ; do
2766 if test -z "${no_recursion}" \
2767 && test -f ${build_subdir}/${module}/Makefile; then
2768 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2769 rm -f ${build_subdir}/${module}/Makefile
2770 fi
2771 extrasub_build="$extrasub_build
2772 /^@if build-$module\$/d
2773 /^@endif build-$module\$/d
2774 /^@unless build-$module\$/,/^@endunless build-$module\$/d
2775 /^@if build-$module-$bootstrap_suffix\$/d
2776 /^@endif build-$module-$bootstrap_suffix\$/d
2777 /^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
2778 done
2779 extrasub_host=
2780 for module in ${configdirs} ; do
2781 if test -z "${no_recursion}"; then
2782 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2783 if test -f ${file}; then
2784 echo 1>&2 "*** removing ${file} to force reconfigure"
2785 rm -f ${file}
2786 fi
2787 done
2788 fi
2789 case ${module},${bootstrap_fixincludes} in
2790 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2791 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2792 esac
2793 extrasub_host="$extrasub_host
2794 /^@if $module\$/d
2795 /^@endif $module\$/d
2796 /^@unless $module\$/,/^@endunless $module\$/d
2797 /^@if $module-$host_bootstrap_suffix\$/d
2798 /^@endif $module-$host_bootstrap_suffix\$/d
2799 /^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
2800 done
2801 extrasub_target=
2802 for module in ${target_configdirs} ; do
2803 if test -z "${no_recursion}" \
2804 && test -f ${target_subdir}/${module}/Makefile; then
2805 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2806 rm -f ${target_subdir}/${module}/Makefile
2807 fi
2808
2809 # We only bootstrap target libraries listed in bootstrap_target_libs.
2810 case $bootstrap_target_libs in
2811 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2812 *) target_bootstrap_suffix=no-bootstrap ;;
2813 esac
2814
2815 extrasub_target="$extrasub_target
2816 /^@if target-$module\$/d
2817 /^@endif target-$module\$/d
2818 /^@unless target-$module\$/,/^@endunless target-$module\$/d
2819 /^@if target-$module-$target_bootstrap_suffix\$/d
2820 /^@endif target-$module-$target_bootstrap_suffix\$/d
2821 /^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless 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 /^@unless /d
2828 /^@endunless /d"
2829
2830 # Create the serialization dependencies. This uses a temporary file.
2831
2832 AC_ARG_ENABLE([serial-configure],
2833 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2834 [force sequential configuration of
2835 sub-packages for the host, target or build
2836 machine, or all sub-packages])])
2837
2838 case ${enable_serial_configure} in
2839 yes)
2840 enable_serial_build_configure=yes
2841 enable_serial_host_configure=yes
2842 enable_serial_target_configure=yes
2843 ;;
2844 esac
2845
2846 # These force 'configure's to be done one at a time, to avoid problems
2847 # with contention over a shared config.cache.
2848 rm -f serdep.tmp
2849 echo '# serdep.tmp' > serdep.tmp
2850 olditem=
2851 test "x${enable_serial_build_configure}" = xyes &&
2852 for item in ${build_configdirs} ; do
2853 case ${olditem} in
2854 "") ;;
2855 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2856 esac
2857 olditem=${item}
2858 done
2859 olditem=
2860 test "x${enable_serial_host_configure}" = xyes &&
2861 for item in ${configdirs} ; do
2862 case ${olditem} in
2863 "") ;;
2864 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2865 esac
2866 olditem=${item}
2867 done
2868 olditem=
2869 test "x${enable_serial_target_configure}" = xyes &&
2870 for item in ${target_configdirs} ; do
2871 case ${olditem} in
2872 "") ;;
2873 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2874 esac
2875 olditem=${item}
2876 done
2877 serialization_dependencies=serdep.tmp
2878 AC_SUBST_FILE(serialization_dependencies)
2879
2880 # Base args. Strip norecursion, cache-file, srcdir, host, build,
2881 # target, nonopt, and variable assignments. These are the ones we
2882 # might not want to pass down to subconfigures. The exception being
2883 # --cache-file=/dev/null, which is used to turn off the use of cache
2884 # files altogether, and which should be passed on to subconfigures.
2885 # Also strip program-prefix, program-suffix, and program-transform-name,
2886 # so that we can pass down a consistent program-transform-name.
2887 baseargs=
2888 tbaseargs=
2889 keep_next=no
2890 skip_next=no
2891 eval "set -- $ac_configure_args"
2892 for ac_arg
2893 do
2894 if test X"$skip_next" = X"yes"; then
2895 skip_next=no
2896 continue
2897 fi
2898 if test X"$keep_next" = X"yes"; then
2899 case $ac_arg in
2900 *\'*)
2901 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2902 esac
2903 baseargs="$baseargs '$ac_arg'"
2904 tbaseargs="$tbaseargs '$ac_arg'"
2905 keep_next=no
2906 continue
2907 fi
2908
2909 # Handle separated arguments. Based on the logic generated by
2910 # autoconf 2.59.
2911 case $ac_arg in
2912 *=* | --config-cache | -C | -disable-* | --disable-* \
2913 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2914 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2915 | -with-* | --with-* | -without-* | --without-* | --x)
2916 separate_arg=no
2917 ;;
2918 -*)
2919 separate_arg=yes
2920 ;;
2921 *)
2922 separate_arg=no
2923 ;;
2924 esac
2925
2926 skip_targ=no
2927 case $ac_arg in
2928 changequote(,)
2929 --with-* | --without-*)
2930 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2931
2932 case $libopt in
2933 *[-_]include)
2934 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2935 ;;
2936 *[-_]lib)
2937 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2938 ;;
2939 *)
2940 lib=$libopt
2941 ;;
2942 esac
2943 changequote([,])
2944
2945 case $lib in
2946 mpc | mpfr | gmp | isl)
2947 # If we're processing --with-$lib, --with-$lib-include or
2948 # --with-$lib-lib, for one of the libs above, and target is
2949 # different from host, don't pass the current argument to any
2950 # target library's configure.
2951 if test x$is_cross_compiler = xyes; then
2952 skip_targ=yes
2953 fi
2954 ;;
2955 esac
2956 ;;
2957 esac
2958
2959 case "$ac_arg" in
2960 --cache-file=/dev/null | \
2961 -cache-file=/dev/null )
2962 # Handled here to avoid the test to skip args below.
2963 baseargs="$baseargs '$ac_arg'"
2964 tbaseargs="$tbaseargs '$ac_arg'"
2965 # Assert: $separate_arg should always be no.
2966 keep_next=$separate_arg
2967 ;;
2968 --no*)
2969 continue
2970 ;;
2971 --c* | \
2972 --sr* | \
2973 --ho* | \
2974 --bu* | \
2975 --t* | \
2976 --program-* | \
2977 -cache_file* | \
2978 -srcdir* | \
2979 -host* | \
2980 -build* | \
2981 -target* | \
2982 -program-prefix* | \
2983 -program-suffix* | \
2984 -program-transform-name* )
2985 skip_next=$separate_arg
2986 continue
2987 ;;
2988 -*)
2989 # An option. Add it.
2990 case $ac_arg in
2991 *\'*)
2992 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2993 esac
2994 baseargs="$baseargs '$ac_arg'"
2995 if test X"$skip_targ" = Xno; then
2996 tbaseargs="$tbaseargs '$ac_arg'"
2997 fi
2998 keep_next=$separate_arg
2999 ;;
3000 *)
3001 # Either a variable assignment, or a nonopt (triplet). Don't
3002 # pass it down; let the Makefile handle this.
3003 continue
3004 ;;
3005 esac
3006 done
3007 # Remove the initial space we just introduced and, as these will be
3008 # expanded by make, quote '$'.
3009 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3010
3011 # Add in --program-transform-name, after --program-prefix and
3012 # --program-suffix have been applied to it. Autoconf has already
3013 # doubled dollar signs and backslashes in program_transform_name; we want
3014 # the backslashes un-doubled, and then the entire thing wrapped in single
3015 # quotes, because this will be expanded first by make and then by the shell.
3016 # Also, because we want to override the logic in subdir configure scripts to
3017 # choose program_transform_name, replace any s,x,x, with s,y,y,.
3018 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3019 ${program_transform_name}
3020 EOF_SED
3021 gcc_transform_name=`cat conftestsed.out`
3022 rm -f conftestsed.out
3023 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3024 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3025 if test "$silent" = yes; then
3026 baseargs="$baseargs --silent"
3027 tbaseargs="$tbaseargs --silent"
3028 fi
3029 baseargs="$baseargs --disable-option-checking"
3030 tbaseargs="$tbaseargs --disable-option-checking"
3031
3032 # Record and document user additions to sub configure arguments.
3033 AC_ARG_VAR([build_configargs],
3034 [additional configure arguments for build directories])
3035 AC_ARG_VAR([host_configargs],
3036 [additional configure arguments for host directories])
3037 AC_ARG_VAR([target_configargs],
3038 [additional configure arguments for target directories])
3039
3040 # For the build-side libraries, we just need to pretend we're native,
3041 # and not use the same cache file. Multilibs are neither needed nor
3042 # desired. We can't even use the same cache file for all build-side
3043 # libraries, as they're compiled differently; some with C, some with
3044 # C++ or with different feature-enabling options.
3045 build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3046
3047 # For host modules, accept cache file option, or specification as blank.
3048 case "${cache_file}" in
3049 "") # empty
3050 cache_file_option="" ;;
3051 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3052 cache_file_option="--cache-file=${cache_file}" ;;
3053 *) # relative path
3054 cache_file_option="--cache-file=../${cache_file}" ;;
3055 esac
3056
3057 # Host dirs don't like to share a cache file either, horribly enough.
3058 # This seems to be due to autoconf 2.5x stupidity.
3059 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3060
3061 target_configargs="$target_configargs ${tbaseargs}"
3062
3063 # Passing a --with-cross-host argument lets the target libraries know
3064 # whether they are being built with a cross-compiler or being built
3065 # native. However, it would be better to use other mechanisms to make the
3066 # sorts of decisions they want to make on this basis. Please consider
3067 # this option to be deprecated. FIXME.
3068 if test x${is_cross_compiler} = xyes ; then
3069 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3070 fi
3071
3072 # Special user-friendly check for native x86_64-linux build, if
3073 # multilib is not explicitly enabled.
3074 case "$target:$have_compiler:$host:$target:$enable_multilib" in
3075 x86_64-*linux*:yes:$build:$build:)
3076 # Make sure we have a development environment that handles 32-bit
3077 dev64=no
3078 echo "int main () { return 0; }" > conftest.c
3079 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3080 if test $? = 0 ; then
3081 if test -s conftest || test -s conftest.exe ; then
3082 dev64=yes
3083 fi
3084 fi
3085 rm -f conftest*
3086 if test x${dev64} != xyes ; then
3087 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.])
3088 fi
3089 ;;
3090 esac
3091
3092 # Default to --enable-multilib.
3093 if test x${enable_multilib} = x ; then
3094 target_configargs="--enable-multilib ${target_configargs}"
3095 fi
3096
3097 # Pass --with-newlib if appropriate. Note that target_configdirs has
3098 # changed from the earlier setting of with_newlib.
3099 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3100 target_configargs="--with-newlib ${target_configargs}"
3101 fi
3102
3103 # Different target subdirs use different values of certain variables
3104 # (notably CXX). Worse, multilibs use *lots* of different values.
3105 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3106 # it doesn't automatically accept command-line overrides of them.
3107 # This means it's not safe for target subdirs to share a cache file,
3108 # which is disgusting, but there you have it. Hopefully this can be
3109 # fixed in future. It's still worthwhile to use a cache file for each
3110 # directory. I think.
3111
3112 # Pass the appropriate --build, --host, --target and --cache-file arguments.
3113 # We need to pass --target, as newer autoconf's requires consistency
3114 # for target_alias and gcc doesn't manage it consistently.
3115 target_configargs="--cache-file=./config.cache ${target_configargs}"
3116
3117 FLAGS_FOR_TARGET=
3118 case " $target_configdirs " in
3119 *" newlib "*)
3120 case " $target_configargs " in
3121 *" --with-newlib "*)
3122 case "$target" in
3123 *-cygwin*)
3124 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3125 ;;
3126 esac
3127
3128 # If we're not building GCC, don't discard standard headers.
3129 if test -d ${srcdir}/gcc; then
3130 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3131
3132 if test "${build}" != "${host}"; then
3133 # On Canadian crosses, CC_FOR_TARGET will have already been set
3134 # by `configure', so we won't have an opportunity to add -Bgcc/
3135 # to it. This is right: we don't want to search that directory
3136 # for binaries, but we want the header files in there, so add
3137 # them explicitly.
3138 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3139
3140 # Someone might think of using the pre-installed headers on
3141 # Canadian crosses, in case the installed compiler is not fully
3142 # compatible with the compiler being built. In this case, it
3143 # would be better to flag an error than risking having
3144 # incompatible object files being constructed. We can't
3145 # guarantee that an error will be flagged, but let's hope the
3146 # compiler will do it, when presented with incompatible header
3147 # files.
3148 fi
3149 fi
3150
3151 case "${target}-${is_cross_compiler}" in
3152 i[[3456789]]86-*-linux*-no)
3153 # Here host == target, so we don't need to build gcc,
3154 # so we don't want to discard standard headers.
3155 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3156 ;;
3157 *)
3158 # If we're building newlib, use its generic headers last, but search
3159 # for any libc-related directories first (so make it the last -B
3160 # switch).
3161 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3162
3163 # If we're building libgloss, find the startup file, simulator library
3164 # and linker script.
3165 case " $target_configdirs " in
3166 *" libgloss "*)
3167 # Look for startup file, simulator library and maybe linker script.
3168 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3169 # Look for libnosys.a in case the target needs it.
3170 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3171 # Most targets have the linker script in the source directory.
3172 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3173 ;;
3174 esac
3175 ;;
3176 esac
3177 ;;
3178 esac
3179 ;;
3180 esac
3181
3182 case "$target" in
3183 x86_64-*mingw* | *-w64-mingw*)
3184 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3185 # however, use a symlink named 'mingw' in ${prefix} .
3186 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3187 ;;
3188 *-mingw*)
3189 # MinGW can't be handled as Cygwin above since it does not use newlib.
3190 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3191 ;;
3192 esac
3193
3194 # Allow the user to override the flags for
3195 # our build compiler if desired.
3196 if test x"${build}" = x"${host}" ; then
3197 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3198 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3199 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3200 fi
3201
3202 # On Canadian crosses, we'll be searching the right directories for
3203 # the previously-installed cross compiler, so don't bother to add
3204 # flags for directories within the install tree of the compiler
3205 # being built; programs in there won't even run.
3206 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3207 # Search for pre-installed headers if nothing else fits.
3208 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3209 fi
3210
3211 if test "x${use_gnu_ld}" = x &&
3212 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3213 # Arrange for us to find uninstalled linker scripts.
3214 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3215 fi
3216
3217 # Search for other target-specific linker scripts and such.
3218 case "${target}" in
3219 mep*)
3220 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3221 ;;
3222 esac
3223
3224 # Makefile fragments.
3225 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3226 do
3227 eval fragval=\$$frag
3228 if test $fragval != /dev/null; then
3229 eval $frag=${srcdir}/$fragval
3230 fi
3231 done
3232 AC_SUBST_FILE(host_makefile_frag)
3233 AC_SUBST_FILE(target_makefile_frag)
3234 AC_SUBST_FILE(alphaieee_frag)
3235 AC_SUBST_FILE(ospace_frag)
3236
3237 # Miscellanea: directories, flags, etc.
3238 AC_SUBST(RPATH_ENVVAR)
3239 AC_SUBST(GCC_SHLIB_SUBDIR)
3240 AC_SUBST(tooldir)
3241 AC_SUBST(build_tooldir)
3242 AC_SUBST(CONFIGURE_GDB_TK)
3243 AC_SUBST(GDB_TK)
3244 AC_SUBST(INSTALL_GDB_TK)
3245
3246 # Build module lists & subconfigure args.
3247 AC_SUBST(build_configargs)
3248 AC_SUBST(build_configdirs)
3249
3250 # Host module lists & subconfigure args.
3251 AC_SUBST(host_configargs)
3252 AC_SUBST(configdirs)
3253 AC_SUBST(target_configdirs)
3254
3255 # Target module lists & subconfigure args.
3256 AC_SUBST(target_configargs)
3257
3258
3259 # Build tools.
3260 AC_SUBST(AR_FOR_BUILD)
3261 AC_SUBST(AS_FOR_BUILD)
3262 AC_SUBST(CC_FOR_BUILD)
3263 AC_SUBST(CFLAGS_FOR_BUILD)
3264 AC_SUBST(CXXFLAGS_FOR_BUILD)
3265 AC_SUBST(CXX_FOR_BUILD)
3266 AC_SUBST(DLLTOOL_FOR_BUILD)
3267 AC_SUBST(GFORTRAN_FOR_BUILD)
3268 AC_SUBST(GOC_FOR_BUILD)
3269 AC_SUBST(LDFLAGS_FOR_BUILD)
3270 AC_SUBST(LD_FOR_BUILD)
3271 AC_SUBST(NM_FOR_BUILD)
3272 AC_SUBST(RANLIB_FOR_BUILD)
3273 AC_SUBST(WINDMC_FOR_BUILD)
3274 AC_SUBST(WINDRES_FOR_BUILD)
3275
3276 # Generate default definitions for YACC, M4, LEX and other programs that run
3277 # on the build machine. These are used if the Makefile can't locate these
3278 # programs in objdir.
3279 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3280
3281 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3282 case " $build_configdirs " in
3283 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3284 esac
3285
3286 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3287 case " $build_configdirs " in
3288 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3289 esac
3290
3291 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3292 case " $build_configdirs " in
3293 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3294 esac
3295
3296 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3297 case " $build_configdirs " in
3298 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3299 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3300 esac
3301
3302 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3303 case " $build_configdirs " in
3304 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3305 esac
3306
3307 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3308 case " $build_configdirs " in
3309 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3310 *)
3311 changequote(,)
3312 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3313 # higher, else we use the "missing" dummy.
3314 if ${MAKEINFO} --version \
3315 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3316 :
3317 else
3318 MAKEINFO="$MISSING makeinfo"
3319 fi
3320 ;;
3321 changequote([,])
3322 esac
3323
3324 # FIXME: expect and dejagnu may become build tools?
3325
3326 AC_CHECK_PROGS(EXPECT, expect, expect)
3327 case " $configdirs " in
3328 *" expect "*)
3329 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3330 ;;
3331 esac
3332
3333 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3334 case " $configdirs " in
3335 *" dejagnu "*)
3336 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3337 ;;
3338 esac
3339
3340
3341 # Host tools.
3342 NCN_STRICT_CHECK_TOOLS(AR, ar)
3343 NCN_STRICT_CHECK_TOOLS(AS, as)
3344 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3345 NCN_STRICT_CHECK_TOOLS(LD, ld)
3346 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3347 NCN_STRICT_CHECK_TOOLS(NM, nm)
3348 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3349 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3350 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3351 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3352 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3353 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3354 NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3355 AC_SUBST(CC)
3356 AC_SUBST(CXX)
3357 AC_SUBST(CFLAGS)
3358 AC_SUBST(CXXFLAGS)
3359
3360 # Target tools.
3361 AC_ARG_WITH([build-time-tools],
3362 [AS_HELP_STRING([--with-build-time-tools=PATH],
3363 [use given path to find target tools during the build])],
3364 [case x"$withval" in
3365 x/*) ;;
3366 *)
3367 with_build_time_tools=
3368 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3369 ;;
3370 esac],
3371 [with_build_time_tools=])
3372
3373 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3374 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3375 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3376 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3377 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3378
3379 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3380 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3381 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3382 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3383 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3384 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3385 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3386 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3387 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3388 ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3389 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3390 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3391 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3392
3393 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3394
3395 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3396 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3397 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3398 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3399 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3400 [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],
3401 c++)
3402 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3403 [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],
3404 c++)
3405 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3406 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3407 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3408 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3409 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3410 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3411 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3412 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3413 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3414 GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3415 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3416 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3417 GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3418 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3419 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3420 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3421
3422 AC_SUBST(FLAGS_FOR_TARGET)
3423 AC_SUBST(RAW_CXX_FOR_TARGET)
3424
3425 # Certain tools may need extra flags.
3426 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3427 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3428 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3429
3430 # When building target libraries, except in a Canadian cross, we use
3431 # the same toolchain as the compiler we just built.
3432 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3433 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3434 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3435 if test $host = $build; then
3436 case " $configdirs " in
3437 *" gcc "*)
3438 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3439 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3440 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3441 ;;
3442 esac
3443 fi
3444
3445 AC_SUBST(COMPILER_AS_FOR_TARGET)
3446 AC_SUBST(COMPILER_LD_FOR_TARGET)
3447 AC_SUBST(COMPILER_NM_FOR_TARGET)
3448
3449 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3450 AC_ARG_ENABLE(maintainer-mode,
3451 [AS_HELP_STRING([--enable-maintainer-mode],
3452 [enable make rules and dependencies not useful
3453 (and sometimes confusing) to the casual installer])],
3454 USE_MAINTAINER_MODE=$enableval,
3455 USE_MAINTAINER_MODE=no)
3456 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3457 AC_SUBST(MAINTAINER_MODE_TRUE)
3458 AC_SUBST(MAINTAINER_MODE_FALSE)
3459 if test "$USE_MAINTAINER_MODE" = yes; then
3460 MAINTAINER_MODE_TRUE=
3461 MAINTAINER_MODE_FALSE='#'
3462 else
3463 MAINTAINER_MODE_TRUE='#'
3464 MAINTAINER_MODE_FALSE=
3465 fi
3466 MAINT=$MAINTAINER_MODE_TRUE
3467 AC_SUBST(MAINT)dnl
3468
3469 # ---------------------
3470 # GCC bootstrap support
3471 # ---------------------
3472
3473 # Stage specific cflags for build.
3474 stage1_cflags="-g"
3475 case $build in
3476 vax-*-*)
3477 case ${GCC} in
3478 yes) stage1_cflags="-g -Wa,-J" ;;
3479 *) stage1_cflags="-g -J" ;;
3480 esac ;;
3481 esac
3482
3483 AC_SUBST(stage1_cflags)
3484
3485 # Enable --enable-checking in stage1 of the compiler.
3486 AC_ARG_ENABLE(stage1-checking,
3487 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3488 [choose additional checking for stage1 of the compiler])],
3489 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3490 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3491 # For --disable-checking or implicit --enable-checking=release, avoid
3492 # setting --enable-checking=gc in the default stage1 checking for LTO
3493 # bootstraps. See PR62077.
3494 case $BUILD_CONFIG in
3495 *lto*)
3496 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3497 *)
3498 stage1_checking=--enable-checking=yes,types;;
3499 esac
3500 if test "x$enable_checking" = x && \
3501 test -d ${srcdir}/gcc && \
3502 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3503 stage1_checking=--enable-checking=yes,types,extra
3504 fi
3505 else
3506 stage1_checking=--enable-checking=$enable_checking,types
3507 fi])
3508 AC_SUBST(stage1_checking)
3509
3510 # Enable -Werror in bootstrap stage2 and later.
3511 AC_ARG_ENABLE(werror,
3512 [AS_HELP_STRING([--enable-werror],
3513 [enable -Werror in bootstrap stage2 and later])],
3514 [
3515 case ${enable_werror} in
3516 yes) stage2_werror_flag="--enable-werror-always" ;;
3517 *) stage2_werror_flag="" ;;
3518 esac
3519 ],
3520 [
3521 if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3522 case $BUILD_CONFIG in
3523 bootstrap-debug)
3524 stage2_werror_flag="--enable-werror-always" ;;
3525 "")
3526 stage2_werror_flag="--enable-werror-always" ;;
3527 esac
3528 fi
3529 ])
3530
3531 AC_SUBST(stage2_werror_flag)
3532
3533 # Specify what files to not compare during bootstrap.
3534
3535 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3536 case "$target" in
3537 hppa*64*-*-hpux*) ;;
3538 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;;
3539 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3540 esac
3541 AC_SUBST(compare_exclusions)
3542
3543 AC_CONFIG_FILES([Makefile],
3544 [sed "$extrasub_build" Makefile |
3545 sed "$extrasub_host" |
3546 sed "$extrasub_target" > mf$$
3547 mv -f mf$$ Makefile],
3548 [extrasub_build="$extrasub_build"
3549 extrasub_host="$extrasub_host"
3550 extrasub_target="$extrasub_target"])
3551 AC_OUTPUT