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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 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
22m4_include(config/acx.m4)
23m4_include(config/override.m4)
24m4_include(config/proginstall.m4)
25m4_include(config/elf.m4)
26m4_include([libtool.m4])
27m4_include([ltoptions.m4])
28m4_include([ltsugar.m4])
29m4_include([ltversion.m4])
30m4_include([lt~obsolete.m4])
31m4_include([config/isl.m4])
32
33AC_INIT(move-if-change)
34AC_PREREQ(2.64)
35AC_DISABLE_OPTION_CHECKING
36
37progname=$0
38# if PWD already has a value, it is probably wrong.
39if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
40
41# Export original configure arguments for use by sub-configures.
42# Quote arguments with shell meta charatcers.
43TOPLEVEL_CONFIGURE_ARGUMENTS=
44set -- "$progname" "$@"
45for ac_arg
46do
47 case "$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 $ac_arg"
56done
57if test "$silent" = yes; then
58 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
59fi
60# Remove the initial space we just introduced and, as these will be
61# expanded by make, quote '$'.
62TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
63AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
64
65# Find the build, host, and target systems.
66ACX_NONCANONICAL_BUILD
67ACX_NONCANONICAL_HOST
68ACX_NONCANONICAL_TARGET
69
70dnl Autoconf 2.5x and later will set a default program prefix if
71dnl --target was used, even if it was the same as --host. Disable
72dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
73dnl to take effect.
74test "$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
79AC_CANONICAL_SYSTEM
80AC_ARG_PROGRAM
81
82m4_pattern_allow([^AS_FOR_TARGET$])dnl
83m4_pattern_allow([^AS_FOR_BUILD$])dnl
84
85# Get 'install' or 'install-sh' and its variants.
86AC_PROG_INSTALL
87ACX_PROG_LN
88AC_PROG_LN_S
89AC_PROG_SED
90AC_PROG_AWK
91
92srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
93
94# We pass INSTALL explicitly to sub-makes. Make sure that it is not
95# a relative path.
96if test "$INSTALL" = "${srcdir}/install-sh -c"; then
97 INSTALL="${srcpwd}/install-sh -c"
98fi
99
100# Set srcdir to "." if that's what it is.
101# This is important for multilib support.
102pwd=`${PWDCMD-pwd}`
103if test "${pwd}" = "${srcpwd}" ; then
104 srcdir=.
105fi
106
107topsrcdir=$srcpwd
108
109extra_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#
128build_libs="build-libiberty build-libcpp"
129
130# these tools are built for the build environment
131build_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
135host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv"
136
137# these tools are built for the host environment
138# Note, the powerpc-eabi build depends on sim occurring before gdb in order to
139# know that we are building the simulator.
140# binutils, gas and ld appear in that order because it makes sense to run
141# "make check" in that particular order.
142# If --enable-gold is used, "gold" may replace "ld".
143host_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# libgcj represents the runtime libraries only used by gcj.
146libgcj="target-libffi \
147 target-zlib \
148 target-libjava"
149
150# these libraries are built for the target environment, and are built after
151# the host libraries and the host tools (which may be a cross compiler)
152# Note that libiberty is not a target library.
153target_libraries="target-libgcc \
154 target-libbacktrace \
155 target-libgloss \
156 target-newlib \
157 target-libgomp \
158 target-libcilkrts \
159 target-liboffloadmic \
160 target-libatomic \
161 target-libitm \
162 target-libstdc++-v3 \
163 target-libsanitizer \
164 target-libvtv \
165 target-libmpx \
166 target-libssp \
167 target-libquadmath \
168 target-libgfortran \
169 target-boehm-gc \
170 ${libgcj} \
171 target-libobjc \
172 target-libada \
173 target-libgo"
174
175# these tools are built using the target libraries, and are intended to
176# run only in the target environment
177#
178# note: any program that *uses* libraries that are in the "target_libraries"
179# list belongs in this list.
180#
181target_tools="target-rda"
182
183################################################################################
184
185## All tools belong in one of the four categories, and are assigned above
186## We assign ${configdirs} this way to remove all embedded newlines. This
187## is important because configure will choke if they ever get through.
188## ${configdirs} is directories we build using the host tools.
189## ${target_configdirs} is directories we build using the target tools.
190configdirs=`echo ${host_libs} ${host_tools}`
191target_configdirs=`echo ${target_libraries} ${target_tools}`
192build_configdirs=`echo ${build_libs} ${build_tools}`
193
194m4_divert_text([PARSE_ARGS],
195[case $srcdir in
196 *" "*)
197m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
198 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
199m4_popdef([AS_MESSAGE_LOG_FD])dnl
200 ;;
201esac
202ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
203])
204
205################################################################################
206
207srcname="gnu development package"
208
209# This gets set non-empty for some net releases of packages.
210appdirs=""
211
212# Define is_cross_compiler to save on calls to 'test'.
213is_cross_compiler=
214if test x"${host}" = x"${target}" ; then
215 is_cross_compiler=no
216else
217 is_cross_compiler=yes
218fi
219
220# Find the build and target subdir names.
221GCC_TOPLEV_SUBDIRS
222# Be sure to cover against remnants of an in-tree build.
223if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
224 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
225Use a pristine source tree when building in a separate tree])
226fi
227
228# Skipdirs are removed silently.
229skipdirs=
230# Noconfigdirs are removed loudly.
231noconfigdirs=""
232
233use_gnu_ld=
234# Make sure we don't let GNU ld be added if we didn't want it.
235if test x$with_gnu_ld = xno ; then
236 use_gnu_ld=no
237 noconfigdirs="$noconfigdirs ld gold"
238fi
239
240use_gnu_as=
241# Make sure we don't let GNU as be added if we didn't want it.
242if test x$with_gnu_as = xno ; then
243 use_gnu_as=no
244 noconfigdirs="$noconfigdirs gas"
245fi
246
247use_included_zlib=
248AC_ARG_WITH(system-zlib,
249[AS_HELP_STRING([--with-system-zlib], [use installed libz])])
250# Make sure we don't let ZLIB be added if we didn't want it.
251if test x$with_system_zlib = xyes ; then
252 use_included_zlib=no
253 noconfigdirs="$noconfigdirs zlib"
254fi
255
256# some tools are so dependent upon X11 that if we're not building with X,
257# it's not even worth trying to configure, much less build, that tool.
258
259case ${with_x} in
260 yes | "") ;; # the default value for this tree is that X11 is available
261 no)
262 skipdirs="${skipdirs} tk itcl libgui"
263 # We won't be able to build gdbtk without X.
264 enable_gdbtk=no
265 ;;
266 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
267esac
268
269# Some are only suitable for cross toolchains.
270# Remove these if host=target.
271cross_only="target-libgloss target-newlib target-opcodes"
272
273case $is_cross_compiler in
274 no) skipdirs="${skipdirs} ${cross_only}" ;;
275esac
276
277# If both --with-headers and --with-libs are specified, default to
278# --without-newlib.
279if test x"${with_headers}" != x && test x"${with_headers}" != xno \
280 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
281 if test x"${with_newlib}" = x ; then
282 with_newlib=no
283 fi
284fi
285
286# Recognize --with-newlib/--without-newlib.
287case ${with_newlib} in
288 no) skipdirs="${skipdirs} target-newlib" ;;
289 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
290esac
291
292AC_ARG_ENABLE(as-accelerator-for,
293[AS_HELP_STRING([--enable-as-accelerator-for=ARG],
294 [build as offload target compiler.
295 Specify offload host triple by ARG])])
296
297AC_ARG_ENABLE(offload-targets,
298[AS_HELP_STRING([--enable-offload-targets=LIST],
299 [enable offloading to devices from comma-separated LIST of
300 TARGET[=DIR]. Use optional path to find offload target compiler
301 during the build])],
302[
303 if test x"$enable_offload_targets" = x; then
304 AC_MSG_ERROR([no offload targets specified])
305 fi
306], [enable_offload_targets=])
307
308# Handle --enable-gold, --enable-ld.
309# --disable-gold [--enable-ld]
310# Build only ld. Default option.
311# --enable-gold [--enable-ld]
312# Build both gold and ld. Install gold as "ld.gold", install ld
313# as "ld.bfd" and "ld".
314# --enable-gold=default [--enable-ld]
315# Build both gold and ld. Install gold as "ld.gold" and "ld",
316# install ld as "ld.bfd".
317# --enable-gold[=default] --disable-ld
318# Build only gold, which is then installed as both "ld.gold" and "ld".
319# --enable-gold --enable-ld=default
320# Build both gold (installed as "ld.gold") and ld (installed as "ld"
321# and ld.bfd).
322# In other words, ld is default
323# --enable-gold=default --enable-ld=default
324# Error.
325
326default_ld=
327AC_ARG_ENABLE(gold,
328[AS_HELP_STRING([[--enable-gold[=ARG]]],
329 [build gold @<:@ARG={default,yes,no}@:>@])],
330ENABLE_GOLD=$enableval,
331ENABLE_GOLD=no)
332case "${ENABLE_GOLD}" in
333 yes|default)
334 # Check for ELF target.
335 is_elf=no
336 case "${target}" in
337 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
338 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
339 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
340 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
341 case "${target}" in
342 *-*-linux*aout* | *-*-linux*oldld*)
343 ;;
344 *)
345 is_elf=yes
346 ;;
347 esac
348 esac
349
350 if test "$is_elf" = "yes"; then
351 # Check for target supported by gold.
352 case "${target}" in
353 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
354 | aarch64*-*-* | tilegx*-*-*)
355 configdirs="$configdirs gold"
356 if test x${ENABLE_GOLD} = xdefault; then
357 default_ld=gold
358 fi
359 ENABLE_GOLD=yes
360 ;;
361 esac
362 fi
363 ;;
364 no)
365 ;;
366 *)
367 AC_MSG_ERROR([invalid --enable-gold argument])
368 ;;
369esac
370
371AC_ARG_ENABLE(ld,
372[AS_HELP_STRING([[--enable-ld[=ARG]]],
373 [build ld @<:@ARG={default,yes,no}@:>@])],
374ENABLE_LD=$enableval,
375ENABLE_LD=yes)
376
377case "${ENABLE_LD}" in
378 default)
379 if test x${default_ld} != x; then
380 AC_MSG_ERROR([either gold or ld can be the default ld])
381 fi
382 ;;
383 yes)
384 ;;
385 no)
386 if test x${ENABLE_GOLD} != xyes; then
387 AC_MSG_WARN([neither ld nor gold are enabled])
388 fi
389 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
390 ;;
391 *)
392 AC_MSG_ERROR([invalid --enable-ld argument])
393 ;;
394esac
395
396# Configure extra directories which are host specific
397
398case "${host}" in
399 *-cygwin*)
400 configdirs="$configdirs libtermcap" ;;
401esac
402
403# A target can indicate whether a language isn't supported for some reason.
404# Only spaces may be used in this macro; not newlines or tabs.
405unsupported_languages=
406
407# Remove more programs from consideration, based on the host or
408# target this usually means that a port of the program doesn't
409# exist yet.
410
411case "${host}" in
412 i[[3456789]]86-*-msdosdjgpp*)
413 noconfigdirs="$noconfigdirs tcl tk itcl"
414 ;;
415esac
416
417
418AC_ARG_ENABLE(libquadmath,
419AS_HELP_STRING([--disable-libquadmath],
420 [do not build libquadmath directory]),
421ENABLE_LIBQUADMATH=$enableval,
422ENABLE_LIBQUADMATH=yes)
423if test "${ENABLE_LIBQUADMATH}" = "no" ; then
424 noconfigdirs="$noconfigdirs target-libquadmath"
425fi
426
427
428AC_ARG_ENABLE(libquadmath-support,
429AS_HELP_STRING([--disable-libquadmath-support],
430 [disable libquadmath support for Fortran]),
431ENABLE_LIBQUADMATH_SUPPORT=$enableval,
432ENABLE_LIBQUADMATH_SUPPORT=yes)
433enable_libquadmath_support=
434if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
435 enable_libquadmath_support=no
436fi
437
438
439AC_ARG_ENABLE(libada,
440[AS_HELP_STRING([--enable-libada], [build libada directory])],
441ENABLE_LIBADA=$enableval,
442ENABLE_LIBADA=yes)
443if test "${ENABLE_LIBADA}" != "yes" ; then
444 noconfigdirs="$noconfigdirs gnattools"
445fi
446
447AC_ARG_ENABLE(libssp,
448[AS_HELP_STRING([--enable-libssp], [build libssp directory])],
449ENABLE_LIBSSP=$enableval,
450ENABLE_LIBSSP=yes)
451
452AC_ARG_ENABLE(libstdcxx,
453AS_HELP_STRING([--disable-libstdcxx],
454 [do not build libstdc++-v3 directory]),
455ENABLE_LIBSTDCXX=$enableval,
456ENABLE_LIBSTDCXX=default)
457[if test "${ENABLE_LIBSTDCXX}" = "no" ; then
458 noconfigdirs="$noconfigdirs target-libstdc++-v3"
459fi]
460
461# If this is accelerator compiler and its target is intelmic we enable
462# target liboffloadmic by default. If this is compiler with offloading
463# for intelmic we enable host liboffloadmic by default. Otherwise
464# liboffloadmic is disabled by default.
465AC_ARG_ENABLE([liboffloadmic],
466AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
467 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
468[case "$enableval" in
469 no | host | target)
470 enable_liboffloadmic=$enableval ;;
471 *)
472 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
473esac],
474[if test x"$enable_as_accelerator_for" != x; then
475 case "${target}" in
476 *-intelmic-* | *-intelmicemul-*)
477 enable_liboffloadmic=target
478 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
479 ;;
480 *)
481 enable_liboffloadmic=no
482 ;;
483 esac
484else
485 case "${enable_offload_targets}" in
486 *-intelmic-* | *-intelmicemul-*)
487 enable_liboffloadmic=host
488 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
489 ;;
490 *)
491 enable_liboffloadmic=no
492 ;;
493 esac
494fi])
495AC_SUBST(extra_liboffloadmic_configure_flags)
496
497# Save it here so that, even in case of --enable-libgcj, if the Java
498# front-end isn't enabled, we still get libgcj disabled.
499libgcj_saved=$libgcj
500case $enable_libgcj in
501yes)
502 # If we reset it here, it won't get added to noconfigdirs in the
503 # target-specific build rules, so it will be forcibly enabled
504 # (unless the Java language itself isn't enabled).
505 libgcj=
506 ;;
507no)
508 # Make sure we get it printed in the list of not supported target libs.
509 # Don't disable libffi, though, other languages use it.
510 noconfigdirs="$noconfigdirs `echo ${libgcj} | sed -e 's/target-libffi//'`"
511 # Clear libgcj_saved so that even if java is enabled libffi won't be
512 # built.
513 libgcj_saved=
514 ;;
515esac
516
517AC_ARG_ENABLE(static-libjava,
518[AS_HELP_STRING([[--enable-static-libjava[=ARG]]],
519 [build static libjava @<:@default=no@:>@])],
520ENABLE_STATIC_LIBJAVA=$enableval,
521ENABLE_STATIC_LIBJAVA=no)
522enable_static_libjava=
523if test "${ENABLE_STATIC_LIBJAVA}" = "yes" ; then
524 enable_static_libjava=yes
525fi
526
527if test x$enable_static_libjava != xyes ; then
528 EXTRA_CONFIGARGS_LIBJAVA=--disable-static
529fi
530AC_SUBST(EXTRA_CONFIGARGS_LIBJAVA)
531
532# Disable libgomp on non POSIX hosted systems.
533if test x$enable_libgomp = x ; then
534 # Enable libgomp by default on hosted POSIX systems.
535 case "${target}" in
536 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
537 ;;
538 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
539 ;;
540 *-*-solaris2* | *-*-hpux11*)
541 ;;
542 *-*-darwin* | *-*-aix*)
543 ;;
544 *)
545 noconfigdirs="$noconfigdirs target-libgomp"
546 ;;
547 esac
548fi
549
550# Disable libatomic on unsupported systems.
551if test -d ${srcdir}/libatomic; then
552 if test x$enable_libatomic = x; then
553 AC_MSG_CHECKING([for libatomic support])
554 if (srcdir=${srcdir}/libatomic; \
555 . ${srcdir}/configure.tgt; \
556 test -n "$UNSUPPORTED")
557 then
558 AC_MSG_RESULT([no])
559 noconfigdirs="$noconfigdirs target-libatomic"
560 else
561 AC_MSG_RESULT([yes])
562 fi
563 fi
564fi
565
566# Disable libcilkrts on unsupported systems.
567if test -d ${srcdir}/libcilkrts; then
568 if test x$enable_libcilkrts = x; then
569 AC_MSG_CHECKING([for libcilkrts support])
570 if (srcdir=${srcdir}/libcilkrts; \
571 . ${srcdir}/configure.tgt; \
572 test -n "$UNSUPPORTED")
573 then
574 AC_MSG_RESULT([no])
575 noconfigdirs="$noconfigdirs target-libcilkrts"
576 else
577 AC_MSG_RESULT([yes])
578 fi
579 fi
580fi
581
582# Disable liboffloadmic on unsupported systems.
583if test -d ${srcdir}/liboffloadmic; then
584 if test x$enable_liboffloadmic != xno; then
585 AC_MSG_CHECKING([for liboffloadmic support])
586 if (srcdir=${srcdir}/liboffloadmic; \
587 . ${srcdir}/configure.tgt; \
588 test -n "$UNSUPPORTED")
589 then
590 AC_MSG_RESULT([no])
591 noconfigdirs="$noconfigdirs target-liboffloadmic"
592 else
593 AC_MSG_RESULT([yes])
594 fi
595 fi
596fi
597
598# Disable libitm on unsupported systems.
599if test -d ${srcdir}/libitm; then
600 if test x$enable_libitm = x; then
601 AC_MSG_CHECKING([for libitm support])
602 if (srcdir=${srcdir}/libitm; \
603 . ${srcdir}/configure.tgt; \
604 test -n "$UNSUPPORTED")
605 then
606 AC_MSG_RESULT([no])
607 noconfigdirs="$noconfigdirs target-libitm"
608 else
609 AC_MSG_RESULT([yes])
610 fi
611 fi
612fi
613
614# Disable libsanitizer on unsupported systems.
615if test -d ${srcdir}/libsanitizer; then
616 if test x$enable_libsanitizer = x; then
617 AC_MSG_CHECKING([for libsanitizer support])
618 if (srcdir=${srcdir}/libsanitizer; \
619 . ${srcdir}/configure.tgt; \
620 test -n "$UNSUPPORTED")
621 then
622 AC_MSG_RESULT([no])
623 noconfigdirs="$noconfigdirs target-libsanitizer"
624 else
625 AC_MSG_RESULT([yes])
626 fi
627 fi
628fi
629
630# Disable libvtv on unsupported systems.
631if test -d ${srcdir}/libvtv; then
632 if test x$enable_libvtv = x; then
633 AC_MSG_CHECKING([for libvtv support])
634 if (srcdir=${srcdir}/libvtv; \
635 . ${srcdir}/configure.tgt; \
636 test "$VTV_SUPPORTED" != "yes")
637 then
638 AC_MSG_RESULT([no])
639 noconfigdirs="$noconfigdirs target-libvtv"
640 else
641 AC_MSG_RESULT([yes])
642 fi
643 fi
644fi
645
646
647# Enable libmpx on supported systems by request.
648if test -d ${srcdir}/libmpx; then
649 if test x$enable_libmpx = xyes; then
650 AC_MSG_CHECKING([for libmpx support])
651 if (srcdir=${srcdir}/libmpx; \
652 . ${srcdir}/configure.tgt; \
653 test "$LIBMPX_SUPPORTED" != "yes")
654 then
655 AC_MSG_RESULT([no])
656 noconfigdirs="$noconfigdirs target-libmpx"
657 else
658 AC_MSG_RESULT([yes])
659 fi
660 else
661 noconfigdirs="$noconfigdirs target-libmpx"
662 fi
663fi
664
665
666
667# Disable libquadmath for some systems.
668case "${target}" in
669 avr-*-*)
670 noconfigdirs="$noconfigdirs target-libquadmath"
671 ;;
672 # libquadmath is unused on AIX and libquadmath build process use of
673 # LD_LIBRARY_PATH can break AIX bootstrap.
674 powerpc-*-aix* | rs6000-*-aix*)
675 noconfigdirs="$noconfigdirs target-libquadmath"
676 ;;
677esac
678
679# Disable libssp for some systems.
680case "${target}" in
681 avr-*-*)
682 # No hosted I/O support.
683 noconfigdirs="$noconfigdirs target-libssp"
684 ;;
685 powerpc-*-aix* | rs6000-*-aix*)
686 noconfigdirs="$noconfigdirs target-libssp"
687 ;;
688 rl78-*-*)
689 # libssp uses a misaligned load to trigger a fault, but the RL78
690 # doesn't fault for those - instead, it gives a build-time error
691 # for explicit misaligned loads.
692 noconfigdirs="$noconfigdirs target-libssp"
693 ;;
694 visium-*-*)
695 # No hosted I/O support.
696 noconfigdirs="$noconfigdirs target-libssp"
697 ;;
698esac
699
700# Disable libstdc++-v3 for some systems.
701# Allow user to override this if they pass --enable-libstdc++-v3
702if test "${ENABLE_LIBSTDCXX}" = "default" ; then
703 case "${target}" in
704 *-*-vxworks*)
705 # VxWorks uses the Dinkumware C++ library.
706 noconfigdirs="$noconfigdirs target-libstdc++-v3"
707 ;;
708 arm*-wince-pe*)
709 # the C++ libraries don't build on top of CE's C libraries
710 noconfigdirs="$noconfigdirs target-libstdc++-v3"
711 ;;
712 avr-*-*)
713 noconfigdirs="$noconfigdirs target-libstdc++-v3"
714 ;;
715 ft32-*-*)
716 noconfigdirs="$noconfigdirs target-libstdc++-v3"
717 ;;
718 esac
719fi
720
721# Disable Fortran for some systems.
722case "${target}" in
723 mmix-*-*)
724 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
725 unsupported_languages="$unsupported_languages fortran"
726 ;;
727esac
728
729# Disable Java if libffi is not supported.
730case "${target}" in
731 aarch64-*-*)
732 ;;
733 alpha*-*-*)
734 ;;
735 arm*-*-*)
736 ;;
737 cris-*-*)
738 ;;
739 frv-*-*)
740 ;;
741 hppa*-*-linux*)
742 ;;
743 hppa*-*-hpux*)
744 ;;
745 i?86-*-*)
746 ;;
747 ia64*-*-*)
748 ;;
749 m32r*-*-*)
750 ;;
751 m68k-*-*)
752 ;;
753 mips*-*-rtems*)
754 ;;
755 mips*-*-linux*)
756 ;;
757 powerpc*-*-linux*)
758 ;;
759 powerpc-*-darwin*)
760 ;;
761 powerpc-*-aix* | rs6000-*-aix*)
762 ;;
763 powerpc-*-freebsd*)
764 ;;
765 powerpc64-*-freebsd*)
766 ;;
767 powerpc*-*-rtems*)
768 ;;
769 s390-*-* | s390x-*-*)
770 ;;
771 sh-*-* | sh[[34]]*-*-*)
772 ;;
773 sh64-*-* | sh5*-*-*)
774 ;;
775 sparc*-*-*)
776 ;;
777 x86_64-*-*)
778 ;;
779 *-*-*)
780 unsupported_languages="$unsupported_languages java"
781 ;;
782esac
783
784# Disable Java, libgcj or related libraries for some systems.
785case "${target}" in
786 powerpc-*-darwin*)
787 ;;
788 i[[3456789]]86-*-darwin*)
789 ;;
790 x86_64-*-darwin[[912]]*)
791 ;;
792 *-*-darwin*)
793 noconfigdirs="$noconfigdirs ${libgcj}"
794 ;;
795 *-*-netware*)
796 noconfigdirs="$noconfigdirs ${libgcj}"
797 ;;
798 *-*-rtems*)
799 noconfigdirs="$noconfigdirs ${libgcj}"
800 ;;
801 *-*-tpf*)
802 noconfigdirs="$noconfigdirs ${libgcj}"
803 ;;
804 *-*-uclinux*)
805 noconfigdirs="$noconfigdirs ${libgcj}"
806 ;;
807 *-*-vxworks*)
808 noconfigdirs="$noconfigdirs ${libgcj}"
809 ;;
810 alpha*-*-*vms*)
811 noconfigdirs="$noconfigdirs ${libgcj}"
812 ;;
813 arm*-*-freebsd*)
814 noconfigdirs="$noconfigdirs ${libgcj}"
815 ;;
816 arm-wince-pe)
817 noconfigdirs="$noconfigdirs ${libgcj}"
818 ;;
819 arm*-*-symbianelf*)
820 noconfigdirs="$noconfigdirs ${libgcj}"
821 ;;
822 bfin-*-*)
823 noconfigdirs="$noconfigdirs target-boehm-gc"
824 ;;
825 cris-*-* | crisv32-*-*)
826 unsupported_languages="$unsupported_languages java"
827 case "${target}" in
828 *-*-linux*)
829 ;;
830 *) # See PR46792 regarding target-libffi.
831 noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
832 esac
833 ;;
834 hppa*64*-*-linux*)
835 # In this case, it's because the hppa64-linux target is for
836 # the kernel only at this point and has no libc, and thus no
837 # headers, crt*.o, etc., all of which are needed by these.
838 unsupported_languages="$unsupported_languages java"
839 ;;
840 hppa*64*-*-hpux*)
841 noconfigdirs="$noconfigdirs ${libgcj}"
842 ;;
843 hppa*-hp-hpux11*)
844 ;;
845 hppa*-*-hpux*)
846 # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
847 # build on HP-UX 10.20.
848 noconfigdirs="$noconfigdirs ${libgcj}"
849 ;;
850 ia64*-*-*vms*)
851 noconfigdirs="$noconfigdirs ${libgcj}"
852 ;;
853 i[[3456789]]86-w64-mingw*)
854 noconfigdirs="$noconfigdirs ${libgcj}"
855 ;;
856 i[[3456789]]86-*-mingw*)
857 noconfigdirs="$noconfigdirs ${libgcj}"
858 ;;
859 x86_64-*-mingw*)
860 noconfigdirs="$noconfigdirs ${libgcj}"
861 ;;
862 mmix-*-*)
863 noconfigdirs="$noconfigdirs target-libffi target-boehm-gc"
864 ;;
865 powerpc-*-aix*)
866 # copied from rs6000-*-* entry
867 noconfigdirs="$noconfigdirs ${libgcj}"
868 ;;
869 rs6000-*-aix*)
870 noconfigdirs="$noconfigdirs ${libgcj}"
871 ;;
872 ft32-*-*)
873 noconfigdirs="$noconfigdirs ${libgcj}"
874 ;;
875 *-*-lynxos*)
876 noconfigdirs="$noconfigdirs ${libgcj}"
877 ;;
878esac
879
880# Disable the go frontend on systems where it is known to not work. Please keep
881# this in sync with contrib/config-list.mk.
882case "${target}" in
883*-*-darwin* | *-*-cygwin* | *-*-mingw* | *-*-aix*)
884 unsupported_languages="$unsupported_languages go"
885 ;;
886esac
887
888# Disable libgo for some systems where it is known to not work.
889# For testing, you can easily override this with --enable-libgo.
890if test x$enable_libgo = x; then
891 case "${target}" in
892 *-*-darwin*)
893 # PR 46986
894 noconfigdirs="$noconfigdirs target-libgo"
895 ;;
896 *-*-cygwin* | *-*-mingw*)
897 noconfigdirs="$noconfigdirs target-libgo"
898 ;;
899 *-*-aix*)
900 noconfigdirs="$noconfigdirs target-libgo"
901 ;;
902 esac
903fi
904
905# Default libgloss CPU subdirectory.
906libgloss_dir="$target_cpu"
907
908case "${target}" in
909 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
910 libgloss_dir=wince
911 ;;
912 aarch64*-*-* )
913 libgloss_dir=aarch64
914 ;;
915 arm*-*-*)
916 libgloss_dir=arm
917 ;;
918 cris-*-* | crisv32-*-*)
919 libgloss_dir=cris
920 ;;
921 hppa*-*-*)
922 libgloss_dir=pa
923 ;;
924 i[[3456789]]86-*-*)
925 libgloss_dir=i386
926 ;;
927 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
928 libgloss_dir=m68hc11
929 ;;
930 m68*-*-* | fido-*-*)
931 libgloss_dir=m68k
932 ;;
933 mips*-*-*)
934 libgloss_dir=mips
935 ;;
936 powerpc*-*-*)
937 libgloss_dir=rs6000
938 ;;
939 sparc*-*-*)
940 libgloss_dir=sparc
941 ;;
942esac
943
944# Disable newlib and libgloss for various target OSes.
945case "${target}" in
946 alpha*-dec-osf*)
947 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
948 ;;
949 i[[3456789]]86-*-linux*)
950 # This section makes it possible to build newlib natively on linux.
951 # If we are using a cross compiler then don't configure newlib.
952 if test x${is_cross_compiler} != xno ; then
953 noconfigdirs="$noconfigdirs target-newlib"
954 fi
955 noconfigdirs="$noconfigdirs target-libgloss"
956 # If we are not using a cross compiler, do configure newlib.
957 # Note however, that newlib will only be configured in this situation
958 # if the --with-newlib option has been given, because otherwise
959 # 'target-newlib' will appear in skipdirs.
960 ;;
961 i[[3456789]]86-*-rdos*)
962 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
963 ;;
964 sh*-*-pe|mips*-*-pe|arm-wince-pe)
965 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
966 ;;
967 sparc-*-sunos4*)
968 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
969 ;;
970 *-*-aix*)
971 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
972 ;;
973 *-*-beos*)
974 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
975 ;;
976 *-*-chorusos)
977 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
978 ;;
979 *-*-dragonfly*)
980 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
981 ;;
982 *-*-freebsd*)
983 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
984 ;;
985 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
986 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
987 ;;
988 *-*-lynxos*)
989 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
990 ;;
991 *-*-mingw*)
992 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
993 ;;
994 *-*-netbsd*)
995 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
996 ;;
997 *-*-netware*)
998 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
999 ;;
1000 *-*-tpf*)
1001 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1002 ;;
1003 *-*-uclinux*)
1004 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1005 ;;
1006 *-*-vxworks*)
1007 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1008 ;;
1009esac
1010
1011case "${target}" in
1012 *-*-chorusos)
1013 ;;
1014 powerpc-*-darwin*)
1015 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1016 noconfigdirs="$noconfigdirs sim target-rda"
1017 ;;
1018 i[[3456789]]86-*-darwin*)
1019 noconfigdirs="$noconfigdirs ld gprof"
1020 noconfigdirs="$noconfigdirs sim target-rda"
1021 ;;
1022 x86_64-*-darwin[[912]]*)
1023 noconfigdirs="$noconfigdirs ld gas gprof"
1024 noconfigdirs="$noconfigdirs sim target-rda"
1025 ;;
1026 *-*-darwin*)
1027 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1028 noconfigdirs="$noconfigdirs sim target-rda"
1029 ;;
1030 *-*-dragonfly*)
1031 ;;
1032 *-*-freebsd*)
1033 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
1034 && test -f /usr/local/include/gmp.h; then
1035 with_gmp=/usr/local
1036 fi
1037 ;;
1038 *-*-kaos*)
1039 # Remove unsupported stuff on all kaOS configurations.
1040 noconfigdirs="$noconfigdirs target-libgloss"
1041 ;;
1042 *-*-netbsd*)
1043 ;;
1044 *-*-netware*)
1045 ;;
1046 *-*-rtems*)
1047 noconfigdirs="$noconfigdirs target-libgloss"
1048 # this is not caught below because this stanza matches earlier
1049 case $target in
1050 or1k*-*-*) noconfigdirs="$noconfigdirs gdb" ;;
1051 esac
1052 ;;
1053 # The tpf target doesn't support gdb yet.
1054 *-*-tpf*)
1055 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
1056 ;;
1057 *-*-uclinux*)
1058 noconfigdirs="$noconfigdirs target-rda"
1059 ;;
1060 *-*-vxworks*)
1061 ;;
1062 alpha*-dec-osf*)
1063 # ld works, but does not support shared libraries.
1064 # gas doesn't generate exception information.
1065 noconfigdirs="$noconfigdirs gas ld"
1066 ;;
1067 alpha*-*-*vms*)
1068 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1069 ;;
1070 alpha*-*-*)
1071 # newlib is not 64 bit ready
1072 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1073 ;;
1074 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
1075 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
1076 ;;
1077 arc-*-*|arceb-*-*)
1078 noconfigdirs="$noconfigdirs target-libgloss"
1079 ;;
1080 arm-*-pe*)
1081 noconfigdirs="$noconfigdirs target-libgloss"
1082 ;;
1083 arm-*-riscix*)
1084 noconfigdirs="$noconfigdirs ld target-libgloss"
1085 ;;
1086 avr-*-rtems*)
1087 ;;
1088 avr-*-*)
1089 if test x${with_avrlibc} != xno; then
1090 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1091 fi
1092 ;;
1093 c4x-*-* | tic4x-*-*)
1094 noconfigdirs="$noconfigdirs target-libgloss"
1095 ;;
1096 tic54x-*-*)
1097 noconfigdirs="$noconfigdirs target-libgloss gdb"
1098 ;;
1099 d10v-*-*)
1100 noconfigdirs="$noconfigdirs target-libgloss"
1101 ;;
1102 d30v-*-*)
1103 noconfigdirs="$noconfigdirs gdb"
1104 ;;
1105 fr30-*-elf*)
1106 noconfigdirs="$noconfigdirs gdb"
1107 ;;
1108 ft32-*-*)
1109 noconfigdirs="$noconfigdirs target-rda gprof"
1110 ;;
1111 moxie-*-*)
1112 noconfigdirs="$noconfigdirs"
1113 ;;
1114 h8300*-*-*)
1115 noconfigdirs="$noconfigdirs target-libgloss"
1116 ;;
1117 h8500-*-*)
1118 noconfigdirs="$noconfigdirs target-libgloss"
1119 ;;
1120 hppa1.1-*-osf* | hppa1.1-*-bsd* )
1121 ;;
1122 hppa*64*-*-hpux*)
1123 noconfigdirs="$noconfigdirs gdb"
1124 ;;
1125 hppa*-*-hpux11*)
1126 noconfigdirs="$noconfigdirs gdb ld"
1127 ;;
1128 hppa*64*-*-linux*)
1129 ;;
1130 hppa*-*-linux*)
1131 ;;
1132 hppa*-*-*elf* | \
1133 hppa*-*-lites* | \
1134 hppa*-*-openbsd* | \
1135 hppa*64*-*-*)
1136 ;;
1137 hppa*-*-pro*)
1138 ;;
1139 hppa*-*-*)
1140 noconfigdirs="$noconfigdirs ld"
1141 ;;
1142 i960-*-*)
1143 noconfigdirs="$noconfigdirs gdb"
1144 ;;
1145 ia64*-*-elf*)
1146 # No gdb support yet.
1147 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
1148 ;;
1149 ia64*-**-hpux*)
1150 # No ld support yet.
1151 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
1152 ;;
1153 ia64*-*-*vms*)
1154 # No ld support yet.
1155 noconfigdirs="$noconfigdirs libgui itcl ld"
1156 ;;
1157 i[[3456789]]86-w64-mingw*)
1158 ;;
1159 i[[3456789]]86-*-mingw*)
1160 target_configdirs="$target_configdirs target-winsup"
1161 ;;
1162 *-*-cygwin*)
1163 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1164 noconfigdirs="$noconfigdirs target-libgloss"
1165 # always build newlib if winsup directory is present.
1166 if test -d "$srcdir/winsup/cygwin"; then
1167 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1168 elif test -d "$srcdir/newlib"; then
1169 echo "Warning: winsup/cygwin is missing so newlib can't be built."
1170 fi
1171 ;;
1172 i[[3456789]]86-*-pe)
1173 noconfigdirs="$noconfigdirs target-libgloss"
1174 ;;
1175 i[[3456789]]86-*-sco3.2v5*)
1176 # The linker does not yet know about weak symbols in COFF,
1177 # and is not configured to handle mixed ELF and COFF.
1178 noconfigdirs="$noconfigdirs ld target-libgloss"
1179 ;;
1180 i[[3456789]]86-*-sco*)
1181 noconfigdirs="$noconfigdirs gprof target-libgloss"
1182 ;;
1183 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
1184 noconfigdirs="$noconfigdirs target-libgloss"
1185 ;;
1186 i[[3456789]]86-*-sysv4*)
1187 noconfigdirs="$noconfigdirs target-libgloss"
1188 ;;
1189 i[[3456789]]86-*-beos*)
1190 noconfigdirs="$noconfigdirs gdb"
1191 ;;
1192 i[[3456789]]86-*-rdos*)
1193 noconfigdirs="$noconfigdirs gdb"
1194 ;;
1195 mmix-*-*)
1196 noconfigdirs="$noconfigdirs gdb"
1197 ;;
1198 mt-*-*)
1199 noconfigdirs="$noconfigdirs sim"
1200 ;;
1201 powerpc-*-aix*)
1202 # copied from rs6000-*-* entry
1203 noconfigdirs="$noconfigdirs gprof"
1204 ;;
1205 powerpc*-*-winnt* | powerpc*-*-pe*)
1206 target_configdirs="$target_configdirs target-winsup"
1207 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1208 # always build newlib.
1209 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1210 ;;
1211 # This is temporary until we can link against shared libraries
1212 powerpcle-*-solaris*)
1213 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1214 ;;
1215 powerpc-*-beos*)
1216 noconfigdirs="$noconfigdirs gdb"
1217 ;;
1218 rs6000-*-lynxos*)
1219 noconfigdirs="$noconfigdirs gprof"
1220 ;;
1221 rs6000-*-aix*)
1222 noconfigdirs="$noconfigdirs gprof"
1223 ;;
1224 rs6000-*-*)
1225 noconfigdirs="$noconfigdirs gprof"
1226 ;;
1227 m68k-apollo-*)
1228 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1229 ;;
1230 microblaze*)
1231 noconfigdirs="$noconfigdirs gprof"
1232 ;;
1233 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
1234 if test x$with_newlib = xyes; then
1235 noconfigdirs="$noconfigdirs gprof"
1236 fi
1237 ;;
1238 mips*-*-irix5*)
1239 noconfigdirs="$noconfigdirs gprof target-libgloss"
1240 ;;
1241 mips*-*-irix6*)
1242 noconfigdirs="$noconfigdirs gprof target-libgloss"
1243 ;;
1244 mips*-*-bsd*)
1245 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
1246 ;;
1247 mips*-*-linux*)
1248 ;;
1249 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1250 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1251 noconfigdirs="$noconfigdirs ld gas gprof"
1252 ;;
1253 mips*-*-*)
1254 noconfigdirs="$noconfigdirs gprof"
1255 ;;
1256 nds32*-*-*)
1257 noconfigdirs="$noconfigdirs gdb"
1258 ;;
1259 nvptx*-*-*)
1260 # nvptx is just a compiler
1261 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1262 ;;
1263 or1k*-*-*)
1264 noconfigdirs="$noconfigdirs gdb"
1265 ;;
1266 sh-*-* | sh64-*-*)
1267 case "${target}" in
1268 sh*-*-elf)
1269 ;;
1270 *)
1271 noconfigdirs="$noconfigdirs target-libgloss" ;;
1272 esac
1273 ;;
1274 sparc-*-sunos4*)
1275 if test x${is_cross_compiler} = xno ; then
1276 use_gnu_ld=no
1277 fi
1278 ;;
1279 tic6x-*-*)
1280 noconfigdirs="$noconfigdirs sim"
1281 ;;
1282 tilepro*-*-* | tilegx*-*-*)
1283 noconfigdirs="$noconfigdirs sim"
1284 ;;
1285 v810-*-*)
1286 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1287 ;;
1288 vax-*-*)
1289 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1290 ;;
1291esac
1292
1293# If we aren't building newlib, then don't build libgloss, since libgloss
1294# depends upon some newlib header files.
1295case "${noconfigdirs}" in
1296 *target-libgloss*) ;;
1297 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1298esac
1299
1300# Work in distributions that contain no compiler tools, like Autoconf.
1301host_makefile_frag=/dev/null
1302if test -d ${srcdir}/config ; then
1303case "${host}" in
1304 i[[3456789]]86-*-msdosdjgpp*)
1305 host_makefile_frag="config/mh-djgpp"
1306 ;;
1307 *-cygwin*)
1308 ACX_CHECK_CYGWIN_CAT_WORKS
1309 host_makefile_frag="config/mh-cygwin"
1310 ;;
1311 *-mingw*)
1312 host_makefile_frag="config/mh-mingw"
1313 ;;
1314 alpha*-linux*)
1315 host_makefile_frag="config/mh-alpha-linux"
1316 ;;
1317 hppa*-hp-hpux10*)
1318 host_makefile_frag="config/mh-pa-hpux10"
1319 ;;
1320 hppa*-hp-hpux*)
1321 host_makefile_frag="config/mh-pa"
1322 ;;
1323 hppa*-*)
1324 host_makefile_frag="config/mh-pa"
1325 ;;
1326 *-*-darwin*)
1327 host_makefile_frag="config/mh-darwin"
1328 ;;
1329 powerpc-*-aix*)
1330 host_makefile_frag="config/mh-ppc-aix"
1331 ;;
1332 rs6000-*-aix*)
1333 host_makefile_frag="config/mh-ppc-aix"
1334 ;;
1335esac
1336fi
1337
1338if test "${build}" != "${host}" ; then
1339 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1340 AS_FOR_BUILD=${AS_FOR_BUILD-as}
1341 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1342 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1343 GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
1344 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1345 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1346 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1347 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1348 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1349 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1350 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1351 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1352else
1353 AR_FOR_BUILD="\$(AR)"
1354 AS_FOR_BUILD="\$(AS)"
1355 CC_FOR_BUILD="\$(CC)"
1356 CXX_FOR_BUILD="\$(CXX)"
1357 GCJ_FOR_BUILD="\$(GCJ)"
1358 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1359 GOC_FOR_BUILD="\$(GOC)"
1360 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1361 LD_FOR_BUILD="\$(LD)"
1362 NM_FOR_BUILD="\$(NM)"
1363 RANLIB_FOR_BUILD="\$(RANLIB)"
1364 WINDRES_FOR_BUILD="\$(WINDRES)"
1365 WINDMC_FOR_BUILD="\$(WINDMC)"
1366fi
1367
1368AC_PROG_CC
1369AC_PROG_CXX
1370
1371# We must set the default linker to the linker used by gcc for the correct
1372# operation of libtool. If LD is not defined and we are using gcc, try to
1373# set the LD default to the ld used by gcc.
1374if test -z "$LD"; then
1375 if test "$GCC" = yes; then
1376 case $build in
1377 *-*-mingw*)
1378 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1379 *)
1380 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1381 esac
1382 case $gcc_prog_ld in
1383 # Accept absolute paths.
1384 [[\\/]* | [A-Za-z]:[\\/]*)]
1385 LD="$gcc_prog_ld" ;;
1386 esac
1387 fi
1388fi
1389
1390# Check whether -static-libstdc++ -static-libgcc is supported.
1391have_static_libs=no
1392if test "$GCC" = yes; then
1393 saved_LDFLAGS="$LDFLAGS"
1394
1395 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1396 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1397 AC_LANG_PUSH(C++)
1398 AC_LINK_IFELSE([
1399#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1400#error -static-libstdc++ not implemented
1401#endif
1402int main() {}],
1403 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1404 [AC_MSG_RESULT([no])])
1405 AC_LANG_POP(C++)
1406
1407 LDFLAGS="$saved_LDFLAGS"
1408fi
1409
1410ACX_PROG_GNAT
1411ACX_PROG_CMP_IGNORE_INITIAL
1412
1413AC_ARG_ENABLE([bootstrap],
1414[AS_HELP_STRING([--enable-bootstrap],
1415 [enable bootstrapping @<:@yes if native build@:>@])],,
1416enable_bootstrap=default)
1417
1418# Issue errors and warnings for invalid/strange bootstrap combinations.
1419if test -r $srcdir/gcc/configure; then
1420 have_compiler=yes
1421else
1422 have_compiler=no
1423fi
1424
1425case "$have_compiler:$host:$target:$enable_bootstrap" in
1426 *:*:*:no) ;;
1427
1428 # Default behavior. Enable bootstrap if we have a compiler
1429 # and we are in a native configuration.
1430 yes:$build:$build:default)
1431 enable_bootstrap=yes ;;
1432
1433 *:*:*:default)
1434 enable_bootstrap=no ;;
1435
1436 # We have a compiler and we are in a native configuration, bootstrap is ok
1437 yes:$build:$build:yes)
1438 ;;
1439
1440 # Other configurations, but we have a compiler. Assume the user knows
1441 # what he's doing.
1442 yes:*:*:yes)
1443 AC_MSG_WARN([trying to bootstrap a cross compiler])
1444 ;;
1445
1446 # No compiler: if they passed --enable-bootstrap explicitly, fail
1447 no:*:*:yes)
1448 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1449
1450 # Fail if wrong command line
1451 *)
1452 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1453 ;;
1454esac
1455
1456# When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1457# C++98 compiler can still start the bootstrap.
1458if test "$enable_bootstrap:$GXX" = "yes:yes"; then
1459 CXX="$CXX -std=gnu++98"
1460fi
1461
1462# Used for setting $lt_cv_objdir
1463_LT_CHECK_OBJDIR
1464
1465# Check for GMP, MPFR and MPC
1466gmplibs="-lmpc -lmpfr -lgmp"
1467gmpinc=
1468have_gmp=no
1469
1470# Specify a location for mpc
1471# check for this first so it ends up on the link line before mpfr.
1472AC_ARG_WITH(mpc,
1473[AS_HELP_STRING([--with-mpc=PATH],
1474 [specify prefix directory for installed MPC package.
1475 Equivalent to --with-mpc-include=PATH/include
1476 plus --with-mpc-lib=PATH/lib])])
1477AC_ARG_WITH(mpc-include,
1478[AS_HELP_STRING([--with-mpc-include=PATH],
1479 [specify directory for installed MPC include files])])
1480AC_ARG_WITH(mpc-lib,
1481[AS_HELP_STRING([--with-mpc-lib=PATH],
1482 [specify directory for the installed MPC library])])
1483
1484if test "x$with_mpc" != x; then
1485 gmplibs="-L$with_mpc/lib $gmplibs"
1486 gmpinc="-I$with_mpc/include $gmpinc"
1487fi
1488if test "x$with_mpc_include" != x; then
1489 gmpinc="-I$with_mpc_include $gmpinc"
1490fi
1491if test "x$with_mpc_lib" != x; then
1492 gmplibs="-L$with_mpc_lib $gmplibs"
1493fi
1494if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1495 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1496 gmpinc='-I$$s/mpc/src '"$gmpinc"
1497 # Do not test the mpc version. Assume that it is sufficient, since
1498 # it is in the source tree, and the library has not been built yet
1499 # but it would be included on the link line in the version check below
1500 # hence making the test fail.
1501 have_gmp=yes
1502fi
1503
1504# Specify a location for mpfr
1505# check for this first so it ends up on the link line before gmp.
1506AC_ARG_WITH(mpfr-dir,
1507[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1508[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1509Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1510
1511AC_ARG_WITH(mpfr,
1512[AS_HELP_STRING([--with-mpfr=PATH],
1513 [specify prefix directory for installed MPFR package.
1514 Equivalent to --with-mpfr-include=PATH/include
1515 plus --with-mpfr-lib=PATH/lib])])
1516AC_ARG_WITH(mpfr-include,
1517[AS_HELP_STRING([--with-mpfr-include=PATH],
1518 [specify directory for installed MPFR include files])])
1519AC_ARG_WITH(mpfr-lib,
1520[AS_HELP_STRING([--with-mpfr-lib=PATH],
1521 [specify directory for the installed MPFR library])])
1522
1523if test "x$with_mpfr" != x; then
1524 gmplibs="-L$with_mpfr/lib $gmplibs"
1525 gmpinc="-I$with_mpfr/include $gmpinc"
1526fi
1527if test "x$with_mpfr_include" != x; then
1528 gmpinc="-I$with_mpfr_include $gmpinc"
1529fi
1530if test "x$with_mpfr_lib" != x; then
1531 gmplibs="-L$with_mpfr_lib $gmplibs"
1532fi
1533if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1534 # MPFR v3.1.0 moved the sources into a src sub-directory.
1535 if test -d ${srcdir}/mpfr/src; then
1536 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1537 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1538 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1539 else
1540 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir $gmplibs"
1541 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1542 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir"
1543 fi
1544 # Do not test the mpfr version. Assume that it is sufficient, since
1545 # it is in the source tree, and the library has not been built yet
1546 # but it would be included on the link line in the version check below
1547 # hence making the test fail.
1548 have_gmp=yes
1549fi
1550
1551# Specify a location for gmp
1552AC_ARG_WITH(gmp-dir,
1553[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1554[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1555Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1556
1557AC_ARG_WITH(gmp,
1558[AS_HELP_STRING([--with-gmp=PATH],
1559 [specify prefix directory for the installed GMP package.
1560 Equivalent to --with-gmp-include=PATH/include
1561 plus --with-gmp-lib=PATH/lib])])
1562AC_ARG_WITH(gmp-include,
1563[AS_HELP_STRING([--with-gmp-include=PATH],
1564 [specify directory for installed GMP include files])])
1565AC_ARG_WITH(gmp-lib,
1566[AS_HELP_STRING([--with-gmp-lib=PATH],
1567 [specify directory for the installed GMP library])])
1568
1569
1570if test "x$with_gmp" != x; then
1571 gmplibs="-L$with_gmp/lib $gmplibs"
1572 gmpinc="-I$with_gmp/include $gmpinc"
1573fi
1574if test "x$with_gmp_include" != x; then
1575 gmpinc="-I$with_gmp_include $gmpinc"
1576fi
1577if test "x$with_gmp_lib" != x; then
1578 gmplibs="-L$with_gmp_lib $gmplibs"
1579fi
1580if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1581 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1582 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1583 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1584 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1585 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
1586 # Do not test the gmp version. Assume that it is sufficient, since
1587 # it is in the source tree, and the library has not been built yet
1588 # but it would be included on the link line in the version check below
1589 # hence making the test fail.
1590 have_gmp=yes
1591fi
1592
1593if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1594 have_gmp=yes
1595 saved_CFLAGS="$CFLAGS"
1596 CFLAGS="$CFLAGS $gmpinc"
1597 # Check for the recommended and required versions of GMP.
1598 AC_MSG_CHECKING([for the correct version of gmp.h])
1599 AC_TRY_COMPILE([#include "gmp.h"],[
1600 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1601 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1602 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
1603 choke me
1604 #endif
1605 ], [AC_TRY_COMPILE([#include <gmp.h>],[
1606 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1607 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1608 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1609 choke me
1610 #endif
1611 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1612 [AC_MSG_RESULT([no]); have_gmp=no])
1613
1614 # If we have GMP, check the MPFR version.
1615 if test x"$have_gmp" = xyes; then
1616 # Check for the recommended and required versions of MPFR.
1617 AC_MSG_CHECKING([for the correct version of mpfr.h])
1618 AC_TRY_COMPILE([#include <gmp.h>
1619 #include <mpfr.h>],[
1620 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
1621 choke me
1622 #endif
1623 ], [AC_TRY_COMPILE([#include <gmp.h>
1624 #include <mpfr.h>],[
1625 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1626 choke me
1627 #endif
1628 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1629 [AC_MSG_RESULT([no]); have_gmp=no])
1630 fi
1631
1632 # Check for the MPC header version.
1633 if test x"$have_gmp" = xyes ; then
1634 # Check for the recommended and required versions of MPC.
1635 AC_MSG_CHECKING([for the correct version of mpc.h])
1636 AC_TRY_COMPILE([#include <mpc.h>],[
1637 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1638 choke me
1639 #endif
1640 ], [AC_TRY_COMPILE([#include <mpc.h>],[
1641 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1642 choke me
1643 #endif
1644 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1645 [AC_MSG_RESULT([no]); have_gmp=no])
1646 fi
1647
1648 # Now check the MPFR library.
1649 if test x"$have_gmp" = xyes; then
1650 saved_LIBS="$LIBS"
1651 LIBS="$LIBS $gmplibs"
1652 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1653 AC_TRY_LINK([#include <mpc.h>],[
1654 mpfr_t n;
1655 mpfr_t x;
1656 mpc_t c;
1657 int t;
1658 mpfr_init (n);
1659 mpfr_init (x);
1660 mpfr_atan2 (n, n, x, GMP_RNDN);
1661 mpfr_erfc (n, x, GMP_RNDN);
1662 mpfr_subnormalize (x, t, GMP_RNDN);
1663 mpfr_clear(n);
1664 mpfr_clear(x);
1665 mpc_init2 (c, 53);
1666 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1667 mpc_cosh (c, c, MPC_RNDNN);
1668 mpc_pow (c, c, c, MPC_RNDNN);
1669 mpc_acosh (c, c, MPC_RNDNN);
1670 mpc_clear (c);
1671 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1672 LIBS="$saved_LIBS"
1673 fi
1674
1675 CFLAGS="$saved_CFLAGS"
1676
1677# The library versions listed in the error message below should match
1678# the HARD-minimums enforced above.
1679 if test x$have_gmp != xyes; then
1680 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
1681Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1682their locations. Source code for these libraries can be found at
1683their respective hosting sites as well as at
1684ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1685http://gcc.gnu.org/install/prerequisites.html for additional info. If
1686you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1687make sure that you have installed both the libraries and the header
1688files. They may be located in separate packages.])
1689 fi
1690fi
1691
1692# Flags needed for both GMP, MPFR and/or MPC.
1693AC_SUBST(gmplibs)
1694AC_SUBST(gmpinc)
1695AC_SUBST(extra_mpfr_configure_flags)
1696AC_SUBST(extra_mpc_gmp_configure_flags)
1697AC_SUBST(extra_mpc_mpfr_configure_flags)
1698AC_SUBST(extra_isl_gmp_configure_flags)
1699
1700# Allow host libstdc++ to be specified for static linking with PPL.
1701AC_ARG_WITH(host-libstdcxx,
1702[AS_HELP_STRING([--with-host-libstdcxx=L],
1703 [use linker arguments L to link with libstdc++
1704 when linking with PPL])])
1705
1706case $with_host_libstdcxx in
1707 no|yes)
1708 AC_MSG_ERROR([-with-host-libstdcxx needs an argument])
1709 ;;
1710esac
1711
1712# Libraries to use for stage1 or when not bootstrapping.
1713AC_ARG_WITH(stage1-libs,
1714[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1715[if test "$withval" = "no" -o "$withval" = "yes"; then
1716 stage1_libs=
1717 else
1718 stage1_libs=$withval
1719 fi],
1720[stage1_libs=$with_host_libstdcxx])
1721AC_SUBST(stage1_libs)
1722
1723# Linker flags to use for stage1 or when not bootstrapping.
1724AC_ARG_WITH(stage1-ldflags,
1725[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1726[if test "$withval" = "no" -o "$withval" = "yes"; then
1727 stage1_ldflags=
1728 else
1729 stage1_ldflags=$withval
1730 fi],
1731[stage1_ldflags=
1732 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1733 # if supported. But if the user explicitly specified the libraries to use,
1734 # trust that they are doing what they want.
1735 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1736 stage1_ldflags="-static-libstdc++ -static-libgcc"
1737 fi])
1738AC_SUBST(stage1_ldflags)
1739
1740# Libraries to use for stage2 and later builds. This defaults to the
1741# argument passed to --with-host-libstdcxx.
1742AC_ARG_WITH(boot-libs,
1743[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1744[if test "$withval" = "no" -o "$withval" = "yes"; then
1745 poststage1_libs=
1746 else
1747 poststage1_libs=$withval
1748 fi],
1749[poststage1_libs=$with_host_libstdcxx])
1750AC_SUBST(poststage1_libs)
1751
1752# Linker flags to use for stage2 and later builds.
1753AC_ARG_WITH(boot-ldflags,
1754[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1755 [linker flags for stage2 and later])],
1756[if test "$withval" = "no" -o "$withval" = "yes"; then
1757 poststage1_ldflags=
1758 else
1759 poststage1_ldflags=$withval
1760 fi],
1761[poststage1_ldflags=
1762 # In stages 2 and 3, default to linking libstdc++ and libgcc
1763 # statically. But if the user explicitly specified the libraries to
1764 # use, trust that they are doing what they want.
1765 if test "$poststage1_libs" = ""; then
1766 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1767 fi])
1768AC_SUBST(poststage1_ldflags)
1769
1770# GCC GRAPHITE dependency ISL.
1771# Basic setup is inlined here, actual checks are in config/isl.m4
1772
1773AC_ARG_WITH(isl,
1774 [AS_HELP_STRING(
1775 [--with-isl=PATH],
1776 [Specify prefix directory for the installed ISL package.
1777 Equivalent to --with-isl-include=PATH/include
1778 plus --with-isl-lib=PATH/lib])])
1779
1780# Treat --without-isl as a request to disable
1781# GRAPHITE support and skip all following checks.
1782if test "x$with_isl" != "xno"; then
1783 # Check for ISL
1784 dnl Provide configure switches and initialize islinc & isllibs
1785 dnl with user input.
1786 ISL_INIT_FLAGS
1787 dnl The versions of ISL that work for Graphite
1788 ISL_CHECK_VERSION()
1789 dnl Only execute fail-action, if ISL has been requested.
1790 ISL_IF_FAILED([
1791 AC_MSG_ERROR([Unable to find a usable ISL. See config.log for details.])])
1792fi
1793
1794# If the ISL check failed, disable builds of in-tree variant of ISL
1795if test "x$with_isl" = xno ||
1796 test "x$gcc_cv_isl" = xno; then
1797 noconfigdirs="$noconfigdirs isl"
1798 islinc=
1799fi
1800
1801AC_SUBST(isllibs)
1802AC_SUBST(islinc)
1803
1804# Check for LTO support.
1805AC_ARG_ENABLE(lto,
1806[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1807enable_lto=$enableval,
1808enable_lto=yes; default_enable_lto=yes)
1809
1810ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1811 build_lto_plugin=yes
1812],[if test x"$default_enable_lto" = x"yes" ; then
1813 case $target in
1814 *-apple-darwin9* | *-cygwin* | *-mingw*) ;;
1815 # On other non-ELF platforms, LTO has yet to be validated.
1816 *) enable_lto=no ;;
1817 esac
1818 else
1819 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1820 # It would also be nice to check the binutils support, but we don't
1821 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1822 # warn during gcc/ subconfigure; unless you're bootstrapping with
1823 # -flto it won't be needed until after installation anyway.
1824 case $target in
1825 *-cygwin* | *-mingw* | *-apple-darwin*) ;;
1826 *) if test x"$enable_lto" = x"yes"; then
1827 AC_MSG_ERROR([LTO support is not enabled for this target.])
1828 fi
1829 ;;
1830 esac
1831 fi
1832 # Among non-ELF, only Windows platforms support the lto-plugin so far.
1833 # Build it unless LTO was explicitly disabled.
1834 case $target in
1835 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1836 *) ;;
1837 esac
1838])
1839
1840AC_ARG_ENABLE(linker-plugin-configure-flags,
1841 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1842 [additional flags for configuring linker plugins @<:@none@:>@])],
1843 extra_linker_plugin_configure_flags=$enableval,
1844 extra_linker_plugin_configure_flags=)
1845AC_SUBST(extra_linker_plugin_configure_flags)
1846AC_ARG_ENABLE(linker-plugin-flags,
1847 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1848 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1849 extra_linker_plugin_flags=$enableval,
1850 extra_linker_plugin_flags=)
1851AC_SUBST(extra_linker_plugin_flags)
1852
1853
1854# By default, C and C++ are the only stage 1 languages.
1855stage1_languages=,c,
1856
1857# Target libraries that we bootstrap.
1858bootstrap_target_libs=,target-libgcc,
1859
1860# Figure out what language subdirectories are present.
1861# Look if the user specified --enable-languages="..."; if not, use
1862# the environment variable $LANGUAGES if defined. $LANGUAGES might
1863# go away some day.
1864# NB: embedded tabs in this IF block -- do not untabify
1865if test -d ${srcdir}/gcc; then
1866 if test x"${enable_languages+set}" != xset; then
1867 if test x"${LANGUAGES+set}" = xset; then
1868 enable_languages="${LANGUAGES}"
1869 echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1870 else
1871 enable_languages=all
1872 fi
1873 else
1874 if test x"${enable_languages}" = x ||
1875 test x"${enable_languages}" = xyes;
1876 then
1877 echo configure.in: --enable-languages needs at least one language argument 1>&2
1878 exit 1
1879 fi
1880 fi
1881 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1882
1883 # 'f95' is the old name for the 'fortran' language. We issue a warning
1884 # and make the substitution.
1885 case ,${enable_languages}, in
1886 *,f95,*)
1887 echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1888 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1889 ;;
1890 esac
1891
1892 # If bootstrapping, C++ must be enabled.
1893 case ",$enable_languages,:$enable_bootstrap" in
1894 *,c++,*:*) ;;
1895 *:yes)
1896 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1897 enable_languages="${enable_languages},c++"
1898 else
1899 AC_MSG_ERROR([bootstrapping requires c++ sources])
1900 fi
1901 ;;
1902 esac
1903
1904 # First scan to see if an enabled language requires some other language.
1905 # We assume that a given config-lang.in will list all the language
1906 # front ends it requires, even if some are required indirectly.
1907 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1908 case ${lang_frag} in
1909 ..) ;;
1910 # The odd quoting in the next line works around
1911 # an apparent bug in bash 1.12 on linux.
1912 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1913 *)
1914 # From the config-lang.in, get $language, $lang_requires, and
1915 # $lang_requires_boot_languages.
1916 language=
1917 lang_requires=
1918 lang_requires_boot_languages=
1919 . ${lang_frag}
1920 for other in ${lang_requires} ${lang_requires_boot_languages}; do
1921 case ,${enable_languages}, in
1922 *,$other,*) ;;
1923 *,all,*) ;;
1924 *,$language,*)
1925 echo " \`$other' language required by \`$language'; enabling" 1>&2
1926 enable_languages="${enable_languages},${other}"
1927 ;;
1928 esac
1929 done
1930 for other in ${lang_requires_boot_languages} ; do
1931 if test "$other" != "c"; then
1932 case ,${enable_stage1_languages}, in
1933 *,$other,*) ;;
1934 *,all,*) ;;
1935 *)
1936 case ,${enable_languages}, in
1937 *,$language,*)
1938 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1939 enable_stage1_languages="$enable_stage1_languages,${other}"
1940 ;;
1941 esac
1942 ;;
1943 esac
1944 fi
1945 done
1946 ;;
1947 esac
1948 done
1949
1950 new_enable_languages=,c,
1951
1952 # If LTO is enabled, add the LTO front end.
1953 if test "$enable_lto" = "yes" ; then
1954 case ,${enable_languages}, in
1955 *,lto,*) ;;
1956 *) enable_languages="${enable_languages},lto" ;;
1957 esac
1958 if test "${build_lto_plugin}" = "yes" ; then
1959 configdirs="$configdirs lto-plugin"
1960 fi
1961 fi
1962
1963 # If we're building an offloading compiler, add the LTO front end.
1964 if test x"$enable_as_accelerator_for" != x ; then
1965 case ,${enable_languages}, in
1966 *,lto,*) ;;
1967 *) enable_languages="${enable_languages},lto" ;;
1968 esac
1969 fi
1970
1971 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1972 potential_languages=,c,
1973
1974 enabled_target_libs=
1975 disabled_target_libs=
1976
1977 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1978 case ${lang_frag} in
1979 ..) ;;
1980 # The odd quoting in the next line works around
1981 # an apparent bug in bash 1.12 on linux.
1982 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1983 *)
1984 # From the config-lang.in, get $language, $target_libs,
1985 # $lang_dirs, $boot_language, and $build_by_default
1986 language=
1987 target_libs=
1988 lang_dirs=
1989 subdir_requires=
1990 boot_language=no
1991 build_by_default=yes
1992 . ${lang_frag}
1993 if test x${language} = x; then
1994 echo "${lang_frag} doesn't set \$language." 1>&2
1995 exit 1
1996 fi
1997
1998 if test "$language" = "c++"; then
1999 boot_language=yes
2000 fi
2001
2002 add_this_lang=no
2003 case ,${enable_languages}, in
2004 *,${language},*)
2005 # Language was explicitly selected; include it
2006 # unless it is C, which is enabled by default.
2007 if test "$language" != "c"; then
2008 add_this_lang=yes
2009 fi
2010 ;;
2011 *,all,*)
2012 # 'all' was selected, select it if it is a default language
2013 if test "$language" != "c"; then
2014 add_this_lang=${build_by_default}
2015 fi
2016 ;;
2017 esac
2018
2019 # Disable languages that need other directories if these aren't available.
2020 for i in $subdir_requires; do
2021 test -f "$srcdir/gcc/$i/config-lang.in" && continue
2022 case ,${enable_languages}, in
2023 *,${language},*)
2024 # Specifically requested language; tell them.
2025 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2026 ;;
2027 *)
2028 # Silently disable.
2029 add_this_lang=unsupported
2030 ;;
2031 esac
2032 done
2033
2034 # Disable Ada if no preexisting GNAT is available.
2035 case ,${enable_languages},:${language}:${have_gnat} in
2036 *,${language},*:ada:no)
2037 # Specifically requested language; tell them.
2038 AC_MSG_ERROR([GNAT is required to build $language])
2039 ;;
2040 *:ada:no)
2041 # Silently disable.
2042 add_this_lang=unsupported
2043 ;;
2044 esac
2045
2046 # Disable a language that is unsupported by the target.
2047 case " $unsupported_languages " in
2048 *" $language "*)
2049 add_this_lang=unsupported
2050 ;;
2051 esac
2052
2053 case $add_this_lang in
2054 unsupported)
2055 # Remove language-dependent dirs.
2056 disabled_target_libs="$disabled_target_libs $target_libs"
2057 noconfigdirs="$noconfigdirs $lang_dirs"
2058 ;;
2059 no)
2060 # Remove language-dependent dirs; still show language as supported.
2061 disabled_target_libs="$disabled_target_libs $target_libs"
2062 noconfigdirs="$noconfigdirs $lang_dirs"
2063 potential_languages="${potential_languages}${language},"
2064 ;;
2065 yes)
2066 new_enable_languages="${new_enable_languages}${language},"
2067 potential_languages="${potential_languages}${language},"
2068 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
2069 enabled_target_libs="$enabled_target_libs $target_libs"
2070 case "${boot_language}:,$enable_stage1_languages," in
2071 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
2072 # Add to (comma-separated) list of stage 1 languages.
2073 case ",$stage1_languages," in
2074 *,$language,* | ,yes, | ,all,) ;;
2075 *) stage1_languages="${stage1_languages}${language}," ;;
2076 esac
2077 # We need to bootstrap any supporting libraries.
2078 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2079 ;;
2080 esac
2081 ;;
2082 esac
2083 ;;
2084 esac
2085 done
2086
2087 # Add target libraries which are only needed for disabled languages
2088 # to noconfigdirs.
2089 if test -n "$disabled_target_libs"; then
2090 for dir in $disabled_target_libs; do
2091 case " $enabled_target_libs " in
2092 *" ${dir} "*) ;;
2093 *) noconfigdirs="$noconfigdirs $dir" ;;
2094 esac
2095 done
2096 fi
2097
2098 AC_ARG_ENABLE(stage1-languages,
2099 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2100 [choose additional languages to build during
2101 stage1. Mostly useful for compiler development])],
2102 [case ,${enable_stage1_languages}, in
2103 ,no,|,,)
2104 # Set it to something that will have no effect in the loop below
2105 enable_stage1_languages=c ;;
2106 ,yes,)
2107 enable_stage1_languages=`echo $new_enable_languages | \
2108 sed -e "s/^,//" -e "s/,$//" ` ;;
2109 *,all,*)
2110 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2111 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2112 esac
2113
2114 # Add "good" languages from enable_stage1_languages to stage1_languages,
2115 # while "bad" languages go in missing_languages. Leave no duplicates.
2116 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2117 case $potential_languages in
2118 *,$i,*)
2119 case $stage1_languages in
2120 *,$i,*) ;;
2121 *) stage1_languages="$stage1_languages$i," ;;
2122 esac ;;
2123 *)
2124 case $missing_languages in
2125 *,$i,*) ;;
2126 *) missing_languages="$missing_languages$i," ;;
2127 esac ;;
2128 esac
2129 done])
2130
2131 # Remove leading/trailing commas that were added for simplicity
2132 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
2133 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
2134 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2135 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2136
2137 if test "x$missing_languages" != x; then
2138 AC_MSG_ERROR([
2139The following requested languages could not be built: ${missing_languages}
2140Supported languages are: ${potential_languages}])
2141 fi
2142 if test "x$new_enable_languages" != "x$enable_languages"; then
2143 echo The following languages will be built: ${new_enable_languages}
2144 enable_languages="$new_enable_languages"
2145 fi
2146
2147 AC_SUBST(stage1_languages)
2148 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
2149fi
2150
2151# Handle --disable-<component> generically.
2152for dir in $configdirs $build_configdirs $target_configdirs ; do
2153 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
2154 varname=`echo $dirname | sed -e s/+/_/g`
2155 if eval test x\${enable_${varname}} "=" xno ; then
2156 noconfigdirs="$noconfigdirs $dir"
2157 fi
2158done
2159
2160# Check for Boehm's garbage collector
2161AC_ARG_ENABLE(objc-gc,
2162[AS_HELP_STRING([--enable-objc-gc],
2163 [enable use of Boehm's garbage collector with the
2164 GNU Objective-C runtime])],
2165[case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
2166 *,objc,*:*:yes:*target-boehm-gc*)
2167 AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
2168 ;;
2169esac])
2170
2171# Make sure we only build Boehm's garbage collector if required.
2172case ,${enable_languages},:${enable_objc_gc} in
2173 *,objc,*:yes)
2174 # Keep target-boehm-gc if requested for Objective-C.
2175 ;;
2176 *)
2177 # Otherwise remove target-boehm-gc depending on target-libjava.
2178 if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
2179 noconfigdirs="$noconfigdirs target-boehm-gc"
2180 fi
2181 ;;
2182esac
2183
2184# Disable libcilkrts, libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
2185case ,${enable_languages}, in
2186 *,c++,*)
2187 # Disable libcilkrts, libitm, libsanitizer if we're not building libstdc++
2188 case "${noconfigdirs}" in
2189 *target-libstdc++-v3*)
2190 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer"
2191 ;;
2192 *) ;;
2193 esac
2194 ;;
2195 *)
2196 noconfigdirs="$noconfigdirs target-libcilkrts target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
2197 ;;
2198esac
2199
2200# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2201# $build_configdirs and $target_configdirs.
2202# If we have the source for $noconfigdirs entries, add them to $notsupp.
2203
2204notsupp=""
2205for dir in . $skipdirs $noconfigdirs ; do
2206 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
2207 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2208 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2209 if test -r $srcdir/$dirname/configure ; then
2210 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2211 true
2212 else
2213 notsupp="$notsupp $dir"
2214 fi
2215 fi
2216 fi
2217 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2218 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2219 if test -r $srcdir/$dirname/configure ; then
2220 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2221 true
2222 else
2223 notsupp="$notsupp $dir"
2224 fi
2225 fi
2226 fi
2227 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2228 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2229 if test -r $srcdir/$dirname/configure ; then
2230 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2231 true
2232 else
2233 notsupp="$notsupp $dir"
2234 fi
2235 fi
2236 fi
2237done
2238
2239# Quietly strip out all directories which aren't configurable in this tree.
2240# This relies on all configurable subdirectories being autoconfiscated, which
2241# is now the case.
2242build_configdirs_all="$build_configdirs"
2243build_configdirs=
2244for i in ${build_configdirs_all} ; do
2245 j=`echo $i | sed -e s/build-//g`
2246 if test -f ${srcdir}/$j/configure ; then
2247 build_configdirs="${build_configdirs} $i"
2248 fi
2249done
2250
2251configdirs_all="$configdirs"
2252configdirs=
2253for i in ${configdirs_all} ; do
2254 if test -f ${srcdir}/$i/configure ; then
2255 configdirs="${configdirs} $i"
2256 fi
2257done
2258
2259target_configdirs_all="$target_configdirs"
2260target_configdirs=
2261for i in ${target_configdirs_all} ; do
2262 j=`echo $i | sed -e s/target-//g`
2263 if test -f ${srcdir}/$j/configure ; then
2264 target_configdirs="${target_configdirs} $i"
2265 fi
2266done
2267
2268# Exclude target-zlib if target-libjava isn't built.
2269case ${target_configdirs} in
2270*target-libjava*)
2271 ;;
2272*)
2273 target_configdirs="`echo ${target_configdirs} | sed -e 's/target-zlib//'`"
2274 ;;
2275esac
2276
2277# libiberty-linker-plugin is special: it doesn't have its own source directory,
2278# so we have to add it after the preceding checks.
2279if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2280then
2281 case " $configdirs " in
2282 *" libiberty "*)
2283 # If we can build libiberty, we can also build libiberty-linker-plugin.
2284 configdirs="$configdirs libiberty-linker-plugin"
2285 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2286 --with-libiberty=../libiberty-linker-plugin";;
2287 *)
2288 AC_MSG_ERROR([libiberty missing]);;
2289 esac
2290fi
2291
2292# Sometimes we have special requirements for the host libiberty.
2293extra_host_libiberty_configure_flags=
2294extra_host_zlib_configure_flags=
2295case " $configdirs " in
2296 *" lto-plugin "* | *" libcc1 "*)
2297 # When these are to be built as shared libraries, the same applies to
2298 # libiberty.
2299 extra_host_libiberty_configure_flags=--enable-shared
2300 ;;
2301 *" bfd "*)
2302 # When bfd is to be built as a shared library, the same applies to
2303 # zlib.
2304 if test "$enable_shared" = "yes"; then
2305 extra_host_zlib_configure_flags=--enable-host-shared
2306 fi
2307 ;;
2308esac
2309AC_SUBST(extra_host_libiberty_configure_flags)
2310AC_SUBST(extra_host_zlib_configure_flags)
2311
2312# Produce a warning message for the subdirs we can't configure.
2313# This isn't especially interesting in the Cygnus tree, but in the individual
2314# FSF releases, it's important to let people know when their machine isn't
2315# supported by the one or two programs in a package.
2316
2317if test -n "${notsupp}" && test -z "${norecursion}" ; then
2318 # If $appdirs is non-empty, at least one of those directories must still
2319 # be configured, or we error out. (E.g., if the gas release supports a
2320 # specified target in some subdirs but not the gas subdir, we shouldn't
2321 # pretend that all is well.)
2322 if test -n "$appdirs" ; then
2323 for dir in $appdirs ; do
2324 if test -r $dir/Makefile.in ; then
2325 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2326 appdirs=""
2327 break
2328 fi
2329 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2330 appdirs=""
2331 break
2332 fi
2333 fi
2334 done
2335 if test -n "$appdirs" ; then
2336 echo "*** This configuration is not supported by this package." 1>&2
2337 exit 1
2338 fi
2339 fi
2340 # Okay, some application will build, or we don't care to check. Still
2341 # notify of subdirs not getting built.
2342 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2343 echo " ${notsupp}" 1>&2
2344 echo " (Any other directories should still work fine.)" 1>&2
2345fi
2346
2347case "$host" in
2348 *msdosdjgpp*)
2349 enable_gdbtk=no ;;
2350esac
2351
2352# To find our prefix, in gcc_cv_tool_prefix.
2353ACX_TOOL_DIRS
2354
2355copy_dirs=
2356
2357AC_ARG_WITH([build-sysroot],
2358 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2359 [use sysroot as the system root during the build])],
2360 [if test x"$withval" != x ; then
2361 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2362 fi],
2363 [SYSROOT_CFLAGS_FOR_TARGET=])
2364AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2365
2366AC_ARG_WITH([debug-prefix-map],
2367 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2368 [map A to B, C to D ... in debug information])],
2369 [if test x"$withval" != x; then
2370 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2371 for debug_map in $withval; do
2372 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2373 done
2374 fi],
2375 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2376AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2377
2378# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2379# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2380# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2381# We want to ensure that TARGET libraries (which we know are built with
2382# gcc) are built with "-O2 -g", so include those options when setting
2383# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2384if test "x$CFLAGS_FOR_TARGET" = x; then
2385 if test "x${is_cross_compiler}" = xyes; then
2386 CFLAGS_FOR_TARGET="-g -O2"
2387 else
2388 CFLAGS_FOR_TARGET=$CFLAGS
2389 case " $CFLAGS " in
2390 *" -O2 "*) ;;
2391 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2392 esac
2393 case " $CFLAGS " in
2394 *" -g "* | *" -g3 "*) ;;
2395 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2396 esac
2397 fi
2398fi
2399AC_SUBST(CFLAGS_FOR_TARGET)
2400
2401if test "x$CXXFLAGS_FOR_TARGET" = x; then
2402 if test "x${is_cross_compiler}" = xyes; then
2403 CXXFLAGS_FOR_TARGET="-g -O2"
2404 else
2405 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2406 case " $CXXFLAGS " in
2407 *" -O2 "*) ;;
2408 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2409 esac
2410 case " $CXXFLAGS " in
2411 *" -g "* | *" -g3 "*) ;;
2412 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2413 esac
2414 fi
2415fi
2416AC_SUBST(CXXFLAGS_FOR_TARGET)
2417
2418AC_SUBST(LDFLAGS_FOR_TARGET)
2419
2420# Handle --with-headers=XXX. If the value is not "yes", the contents of
2421# the named directory are copied to $(tooldir)/sys-include.
2422if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2423 if test x${is_cross_compiler} = xno ; then
2424 echo 1>&2 '***' --with-headers is only supported when cross compiling
2425 exit 1
2426 fi
2427 if test x"${with_headers}" != xyes ; then
2428 x=${gcc_cv_tool_prefix}
2429 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2430 fi
2431fi
2432
2433# Handle --with-libs=XXX. If the value is not "yes", the contents of
2434# the name directories are copied to $(tooldir)/lib. Multiple directories
2435# are permitted.
2436if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2437 if test x${is_cross_compiler} = xno ; then
2438 echo 1>&2 '***' --with-libs is only supported when cross compiling
2439 exit 1
2440 fi
2441 if test x"${with_libs}" != xyes ; then
2442 # Copy the libraries in reverse order, so that files in the first named
2443 # library override files in subsequent libraries.
2444 x=${gcc_cv_tool_prefix}
2445 for l in ${with_libs}; do
2446 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2447 done
2448 fi
2449fi
2450
2451# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2452#
2453# This is done by determining whether or not the appropriate directory
2454# is available, and by checking whether or not specific configurations
2455# have requested that this magic not happen.
2456#
2457# The command line options always override the explicit settings in
2458# configure.in, and the settings in configure.in override this magic.
2459#
2460# If the default for a toolchain is to use GNU as and ld, and you don't
2461# want to do that, then you should use the --without-gnu-as and
2462# --without-gnu-ld options for the configure script. Similarly, if
2463# the default is to use the included zlib and you don't want to do that,
2464# you should use the --with-system-zlib option for the configure script.
2465
2466if test x${use_gnu_as} = x &&
2467 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2468 with_gnu_as=yes
2469 extra_host_args="$extra_host_args --with-gnu-as"
2470fi
2471
2472if test x${use_gnu_ld} = x &&
2473 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2474 with_gnu_ld=yes
2475 extra_host_args="$extra_host_args --with-gnu-ld"
2476fi
2477
2478if test x${use_included_zlib} = x &&
2479 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2480 :
2481else
2482 with_system_zlib=yes
2483 extra_host_args="$extra_host_args --with-system-zlib"
2484fi
2485
2486# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2487# can detect this case.
2488
2489if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2490 with_newlib=yes
2491 extra_host_args="$extra_host_args --with-newlib"
2492fi
2493
2494# Handle ${copy_dirs}
2495set fnord ${copy_dirs}
2496shift
2497while test $# != 0 ; do
2498 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2499 :
2500 else
2501 echo Copying $1 to $2
2502
2503 # Use the install script to create the directory and all required
2504 # parent directories.
2505 if test -d $2 ; then
2506 :
2507 else
2508 echo >config.temp
2509 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2510 fi
2511
2512 # Copy the directory, assuming we have tar.
2513 # FIXME: Should we use B in the second tar? Not all systems support it.
2514 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2515
2516 # It is the responsibility of the user to correctly adjust all
2517 # symlinks. If somebody can figure out how to handle them correctly
2518 # here, feel free to add the code.
2519
2520 echo $1 > $2/COPIED
2521 fi
2522 shift; shift
2523done
2524
2525# Determine a target-dependent exec_prefix that the installed
2526# gcc will search in. Keep this list sorted by triplet, with
2527# the *-*-osname triplets last.
2528md_exec_prefix=
2529case "${target}" in
2530 i[[34567]]86-pc-msdosdjgpp*)
2531 md_exec_prefix=/dev/env/DJDIR/bin
2532 ;;
2533 *-*-hpux* | \
2534 *-*-nto-qnx* | \
2535 *-*-solaris2*)
2536 md_exec_prefix=/usr/ccs/bin
2537 ;;
2538esac
2539
2540extra_arflags_for_target=
2541extra_nmflags_for_target=
2542extra_ranlibflags_for_target=
2543target_makefile_frag=/dev/null
2544case "${target}" in
2545 spu-*-*)
2546 target_makefile_frag="config/mt-spu"
2547 ;;
2548 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
2549 target_makefile_frag="config/mt-sde"
2550 ;;
2551 mipsisa*-*-elfoabi*)
2552 target_makefile_frag="config/mt-mips-elfoabi"
2553 ;;
2554 mips*-*-*linux* | mips*-*-gnu*)
2555 target_makefile_frag="config/mt-mips-gnu"
2556 ;;
2557 nios2-*-elf*)
2558 target_makefile_frag="config/mt-nios2-elf"
2559 ;;
2560 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2561 target_makefile_frag="config/mt-gnu"
2562 ;;
2563 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2564 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2565 # commands to handle both 32-bit and 64-bit objects. These flags are
2566 # harmless if we're using GNU nm or ar.
2567 extra_arflags_for_target=" -X32_64"
2568 extra_nmflags_for_target=" -B -X32_64"
2569 ;;
2570esac
2571
2572alphaieee_frag=/dev/null
2573case $target in
2574 alpha*-*-*)
2575 # This just makes sure to use the -mieee option to build target libs.
2576 # This should probably be set individually by each library.
2577 alphaieee_frag="config/mt-alphaieee"
2578 ;;
2579esac
2580
2581# If --enable-target-optspace always use -Os instead of -O2 to build
2582# the target libraries, similarly if it is not specified, use -Os
2583# on selected platforms.
2584ospace_frag=/dev/null
2585case "${enable_target_optspace}:${target}" in
2586 yes:*)
2587 ospace_frag="config/mt-ospace"
2588 ;;
2589 :d30v-*)
2590 ospace_frag="config/mt-d30v"
2591 ;;
2592 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
2593 ospace_frag="config/mt-ospace"
2594 ;;
2595 no:* | :*)
2596 ;;
2597 *)
2598 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2599 ;;
2600esac
2601
2602# Some systems (e.g., one of the i386-aix systems the gas testers are
2603# using) don't handle "\$" correctly, so don't use it here.
2604tooldir='${exec_prefix}'/${target_noncanonical}
2605build_tooldir=${tooldir}
2606
2607# Create a .gdbinit file which runs the one in srcdir
2608# and tells GDB to look there for source files.
2609
2610if test -r ${srcdir}/.gdbinit ; then
2611 case ${srcdir} in
2612 .) ;;
2613 *) cat > ./.gdbinit <<EOF
2614# ${NO_EDIT}
2615dir ${srcdir}
2616dir .
2617source ${srcdir}/.gdbinit
2618EOF
2619 ;;
2620 esac
2621fi
2622
2623# Make sure that the compiler is able to generate an executable. If it
2624# can't, we are probably in trouble. We don't care whether we can run the
2625# executable--we might be using a cross compiler--we only care whether it
2626# can be created. At this point the main configure script has set CC.
2627we_are_ok=no
2628echo "int main () { return 0; }" > conftest.c
2629${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2630if test $? = 0 ; then
2631 if test -s conftest || test -s conftest.exe ; then
2632 we_are_ok=yes
2633 fi
2634fi
2635case $we_are_ok in
2636 no)
2637 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2638 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2639 rm -f conftest*
2640 exit 1
2641 ;;
2642esac
2643rm -f conftest*
2644
2645# Decide which environment variable is used to find dynamic libraries.
2646case "${host}" in
2647 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2648 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2649 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2650 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2651esac
2652
2653# On systems where the dynamic library environment variable is PATH,
2654# gcc/ will put dynamic libraries into a subdirectory to avoid adding
2655# built executables to PATH.
2656if test "$RPATH_ENVVAR" = PATH; then
2657 GCC_SHLIB_SUBDIR=/shlib
2658else
2659 GCC_SHLIB_SUBDIR=
2660fi
2661
2662# Adjust the toplevel makefile according to whether bootstrap was selected.
2663case $enable_bootstrap in
2664 yes)
2665 bootstrap_suffix=bootstrap
2666 BUILD_CONFIG=bootstrap-debug
2667 ;;
2668 no)
2669 bootstrap_suffix=no-bootstrap
2670 BUILD_CONFIG=
2671 ;;
2672esac
2673
2674AC_MSG_CHECKING(for default BUILD_CONFIG)
2675
2676AC_ARG_WITH([build-config],
2677 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2678 [use config/NAME.mk build configuration])],
2679 [case $with_build_config in
2680 yes) with_build_config= ;;
2681 no) with_build_config= BUILD_CONFIG= ;;
2682 esac])
2683
2684if test "x${with_build_config}" != x; then
2685 BUILD_CONFIG=$with_build_config
2686else
2687 case $BUILD_CONFIG in
2688 bootstrap-debug)
2689 if echo "int f (void) { return 0; }" > conftest.c &&
2690 ${CC} -c conftest.c &&
2691 mv conftest.o conftest.o.g0 &&
2692 ${CC} -c -g conftest.c &&
2693 mv conftest.o conftest.o.g &&
2694 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2695 :
2696 else
2697 BUILD_CONFIG=
2698 fi
2699 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2700 ;;
2701 esac
2702fi
2703AC_MSG_RESULT($BUILD_CONFIG)
2704AC_SUBST(BUILD_CONFIG)
2705
2706# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2707AC_MSG_CHECKING([for --enable-vtable-verify])
2708AC_ARG_ENABLE(vtable-verify,
2709[AS_HELP_STRING([--enable-vtable-verify],
2710 [Enable vtable verification feature])],
2711[case "$enableval" in
2712 yes) enable_vtable_verify=yes ;;
2713 no) enable_vtable_verify=no ;;
2714 *) enable_vtable_verify=no;;
2715 esac],
2716[enable_vtable_verify=no])
2717AC_MSG_RESULT($enable_vtable_verify)
2718
2719# Record target_configdirs and the configure arguments for target and
2720# build configuration in Makefile.
2721target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2722build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2723bootstrap_fixincludes=no
2724
2725# If we are building libgomp, bootstrap it.
2726if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2727 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2728fi
2729
2730# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2731# or bootstrap-ubsan, bootstrap it.
2732if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2733 case "$BUILD_CONFIG" in
2734 *bootstrap-asan* | *bootstrap-ubsan* )
2735 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
2736 bootstrap_fixincludes=yes
2737 ;;
2738 esac
2739fi
2740
2741# If we are building libvtv and --enable-vtable-verify, bootstrap it.
2742if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2743 test "$enable_vtable_verify" != no; then
2744 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2745fi
2746
2747# If we are building libmpx, bootstrap it.
2748if echo " ${target_configdirs} " | grep " libmpx " > /dev/null 2>&1; then
2749 bootstrap_target_libs=${bootstrap_target_libs}target-libmpx,
2750fi
2751
2752# Determine whether gdb needs tk/tcl or not.
2753# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2754# and in that case we want gdb to be built without tk. Ugh!
2755# In fact I believe gdb is the *only* package directly dependent on tk,
2756# so we should be able to put the 'maybe's in unconditionally and
2757# leave out the maybe dependencies when enable_gdbtk is false. I'm not
2758# 100% sure that that's safe though.
2759
2760gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2761case "$enable_gdbtk" in
2762 no)
2763 GDB_TK="" ;;
2764 yes)
2765 GDB_TK="${gdb_tk}" ;;
2766 *)
2767 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2768 # distro. Eventually someone will fix this and move Insight, nee
2769 # gdbtk to a separate directory.
2770 if test -d ${srcdir}/gdb/gdbtk ; then
2771 GDB_TK="${gdb_tk}"
2772 else
2773 GDB_TK=""
2774 fi
2775 ;;
2776esac
2777CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2778INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2779
2780# Strip out unwanted targets.
2781
2782# While at that, we remove Makefiles if we were started for recursive
2783# configuration, so that the top-level Makefile reconfigures them,
2784# like we used to do when configure itself was recursive.
2785
2786# Loop over modules. We used to use the "$extrasub" feature from Autoconf
2787# but now we're fixing up the Makefile ourselves with the additional
2788# commands passed to AC_CONFIG_FILES. Use separate variables
2789# extrasub-{build,host,target} not because there is any reason to split
2790# the substitutions up that way, but only to remain below the limit of
2791# 99 commands in a script, for HP-UX sed.
2792# Do not nest @if/@endif pairs, because configure will not warn you at all.
2793
2794case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2795 yes:yes:*\ gold\ *:*,c++,*) ;;
2796 yes:yes:*\ gold\ *:*)
2797 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2798 ;;
2799esac
2800
2801extrasub_build=
2802for module in ${build_configdirs} ; do
2803 if test -z "${no_recursion}" \
2804 && test -f ${build_subdir}/${module}/Makefile; then
2805 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2806 rm -f ${build_subdir}/${module}/Makefile
2807 fi
2808 extrasub_build="$extrasub_build
2809/^@if build-$module\$/d
2810/^@endif build-$module\$/d
2811/^@if build-$module-$bootstrap_suffix\$/d
2812/^@endif build-$module-$bootstrap_suffix\$/d"
2813done
2814extrasub_host=
2815for module in ${configdirs} ; do
2816 if test -z "${no_recursion}"; then
2817 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2818 if test -f ${file}; then
2819 echo 1>&2 "*** removing ${file} to force reconfigure"
2820 rm -f ${file}
2821 fi
2822 done
2823 fi
2824 case ${module},${bootstrap_fixincludes} in
2825 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2826 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2827 esac
2828 extrasub_host="$extrasub_host
2829/^@if $module\$/d
2830/^@endif $module\$/d
2831/^@if $module-$host_bootstrap_suffix\$/d
2832/^@endif $module-$host_bootstrap_suffix\$/d"
2833done
2834extrasub_target=
2835for module in ${target_configdirs} ; do
2836 if test -z "${no_recursion}" \
2837 && test -f ${target_subdir}/${module}/Makefile; then
2838 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2839 rm -f ${target_subdir}/${module}/Makefile
2840 fi
2841
2842 # We only bootstrap target libraries listed in bootstrap_target_libs.
2843 case $bootstrap_target_libs in
2844 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2845 *) target_bootstrap_suffix=no-bootstrap ;;
2846 esac
2847
2848 extrasub_target="$extrasub_target
2849/^@if target-$module\$/d
2850/^@endif target-$module\$/d
2851/^@if target-$module-$target_bootstrap_suffix\$/d
2852/^@endif target-$module-$target_bootstrap_suffix\$/d"
2853done
2854
2855# Do the final fixup along with target modules.
2856extrasub_target="$extrasub_target
2857/^@if /,/^@endif /d"
2858
2859# Create the serialization dependencies. This uses a temporary file.
2860
2861AC_ARG_ENABLE([serial-configure],
2862[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2863 [force sequential configuration of
2864 sub-packages for the host, target or build
2865 machine, or all sub-packages])])
2866
2867case ${enable_serial_configure} in
2868 yes)
2869 enable_serial_build_configure=yes
2870 enable_serial_host_configure=yes
2871 enable_serial_target_configure=yes
2872 ;;
2873esac
2874
2875# These force 'configure's to be done one at a time, to avoid problems
2876# with contention over a shared config.cache.
2877rm -f serdep.tmp
2878echo '# serdep.tmp' > serdep.tmp
2879olditem=
2880test "x${enable_serial_build_configure}" = xyes &&
2881for item in ${build_configdirs} ; do
2882 case ${olditem} in
2883 "") ;;
2884 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2885 esac
2886 olditem=${item}
2887done
2888olditem=
2889test "x${enable_serial_host_configure}" = xyes &&
2890for item in ${configdirs} ; do
2891 case ${olditem} in
2892 "") ;;
2893 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2894 esac
2895 olditem=${item}
2896done
2897olditem=
2898test "x${enable_serial_target_configure}" = xyes &&
2899for item in ${target_configdirs} ; do
2900 case ${olditem} in
2901 "") ;;
2902 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2903 esac
2904 olditem=${item}
2905done
2906serialization_dependencies=serdep.tmp
2907AC_SUBST_FILE(serialization_dependencies)
2908
2909# Base args. Strip norecursion, cache-file, srcdir, host, build,
2910# target, nonopt, and variable assignments. These are the ones we
2911# might not want to pass down to subconfigures. The exception being
2912# --cache-file=/dev/null, which is used to turn off the use of cache
2913# files altogether, and which should be passed on to subconfigures.
2914# Also strip program-prefix, program-suffix, and program-transform-name,
2915# so that we can pass down a consistent program-transform-name.
2916baseargs=
2917tbaseargs=
2918keep_next=no
2919skip_next=no
2920eval "set -- $ac_configure_args"
2921for ac_arg
2922do
2923 if test X"$skip_next" = X"yes"; then
2924 skip_next=no
2925 continue
2926 fi
2927 if test X"$keep_next" = X"yes"; then
2928 case $ac_arg in
2929 *\'*)
2930 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2931 esac
2932 baseargs="$baseargs '$ac_arg'"
2933 tbaseargs="$tbaseargs '$ac_arg'"
2934 keep_next=no
2935 continue
2936 fi
2937
2938 # Handle separated arguments. Based on the logic generated by
2939 # autoconf 2.59.
2940 case $ac_arg in
2941 *=* | --config-cache | -C | -disable-* | --disable-* \
2942 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2943 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2944 | -with-* | --with-* | -without-* | --without-* | --x)
2945 separate_arg=no
2946 ;;
2947 -*)
2948 separate_arg=yes
2949 ;;
2950 *)
2951 separate_arg=no
2952 ;;
2953 esac
2954
2955 skip_targ=no
2956 case $ac_arg in
2957changequote(,)
2958 --with-* | --without-*)
2959 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2960
2961 case $libopt in
2962 *[-_]include)
2963 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2964 ;;
2965 *[-_]lib)
2966 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2967 ;;
2968 *)
2969 lib=$libopt
2970 ;;
2971 esac
2972changequote([,])
2973
2974 case $lib in
2975 mpc | mpfr | gmp | isl)
2976 # If we're processing --with-$lib, --with-$lib-include or
2977 # --with-$lib-lib, for one of the libs above, and target is
2978 # different from host, don't pass the current argument to any
2979 # target library's configure.
2980 if test x$is_cross_compiler = xyes; then
2981 skip_targ=yes
2982 fi
2983 ;;
2984 esac
2985 ;;
2986 esac
2987
2988 case "$ac_arg" in
2989 --cache-file=/dev/null | \
2990 -cache-file=/dev/null )
2991 # Handled here to avoid the test to skip args below.
2992 baseargs="$baseargs '$ac_arg'"
2993 tbaseargs="$tbaseargs '$ac_arg'"
2994 # Assert: $separate_arg should always be no.
2995 keep_next=$separate_arg
2996 ;;
2997 --no*)
2998 continue
2999 ;;
3000 --c* | \
3001 --sr* | \
3002 --ho* | \
3003 --bu* | \
3004 --t* | \
3005 --program-* | \
3006 -cache_file* | \
3007 -srcdir* | \
3008 -host* | \
3009 -build* | \
3010 -target* | \
3011 -program-prefix* | \
3012 -program-suffix* | \
3013 -program-transform-name* )
3014 skip_next=$separate_arg
3015 continue
3016 ;;
3017 -*)
3018 # An option. Add it.
3019 case $ac_arg in
3020 *\'*)
3021 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3022 esac
3023 baseargs="$baseargs '$ac_arg'"
3024 if test X"$skip_targ" = Xno; then
3025 tbaseargs="$tbaseargs '$ac_arg'"
3026 fi
3027 keep_next=$separate_arg
3028 ;;
3029 *)
3030 # Either a variable assignment, or a nonopt (triplet). Don't
3031 # pass it down; let the Makefile handle this.
3032 continue
3033 ;;
3034 esac
3035done
3036# Remove the initial space we just introduced and, as these will be
3037# expanded by make, quote '$'.
3038baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
3039
3040# Add in --program-transform-name, after --program-prefix and
3041# --program-suffix have been applied to it. Autoconf has already
3042# doubled dollar signs and backslashes in program_transform_name; we want
3043# the backslashes un-doubled, and then the entire thing wrapped in single
3044# quotes, because this will be expanded first by make and then by the shell.
3045# Also, because we want to override the logic in subdir configure scripts to
3046# choose program_transform_name, replace any s,x,x, with s,y,y,.
3047sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3048${program_transform_name}
3049EOF_SED
3050gcc_transform_name=`cat conftestsed.out`
3051rm -f conftestsed.out
3052baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
3053tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
3054if test "$silent" = yes; then
3055 baseargs="$baseargs --silent"
3056 tbaseargs="$tbaseargs --silent"
3057fi
3058baseargs="$baseargs --disable-option-checking"
3059tbaseargs="$tbaseargs --disable-option-checking"
3060
3061# Record and document user additions to sub configure arguments.
3062AC_ARG_VAR([build_configargs],
3063 [additional configure arguments for build directories])
3064AC_ARG_VAR([host_configargs],
3065 [additional configure arguments for host directories])
3066AC_ARG_VAR([target_configargs],
3067 [additional configure arguments for target directories])
3068
3069# For the build-side libraries, we just need to pretend we're native,
3070# and not use the same cache file. Multilibs are neither needed nor
3071# desired. We can't even use the same cache file for all build-side
3072# libraries, as they're compiled differently; some with C, some with
3073# C++ or with different feature-enabling options.
3074build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
3075
3076# For host modules, accept cache file option, or specification as blank.
3077case "${cache_file}" in
3078"") # empty
3079 cache_file_option="" ;;
3080/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
3081 cache_file_option="--cache-file=${cache_file}" ;;
3082*) # relative path
3083 cache_file_option="--cache-file=../${cache_file}" ;;
3084esac
3085
3086# Host dirs don't like to share a cache file either, horribly enough.
3087# This seems to be due to autoconf 2.5x stupidity.
3088host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
3089
3090target_configargs="$target_configargs ${tbaseargs}"
3091
3092# Passing a --with-cross-host argument lets the target libraries know
3093# whether they are being built with a cross-compiler or being built
3094# native. However, it would be better to use other mechanisms to make the
3095# sorts of decisions they want to make on this basis. Please consider
3096# this option to be deprecated. FIXME.
3097if test x${is_cross_compiler} = xyes ; then
3098 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
3099fi
3100
3101# Special user-friendly check for native x86_64-linux build, if
3102# multilib is not explicitly enabled.
3103case "$target:$have_compiler:$host:$target:$enable_multilib" in
3104 x86_64-*linux*:yes:$build:$build:)
3105 # Make sure we have a development environment that handles 32-bit
3106 dev64=no
3107 echo "int main () { return 0; }" > conftest.c
3108 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3109 if test $? = 0 ; then
3110 if test -s conftest || test -s conftest.exe ; then
3111 dev64=yes
3112 fi
3113 fi
3114 rm -f conftest*
3115 if test x${dev64} != xyes ; then
3116 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.])
3117 fi
3118 ;;
3119esac
3120
3121# Default to --enable-multilib.
3122if test x${enable_multilib} = x ; then
3123 target_configargs="--enable-multilib ${target_configargs}"
3124fi
3125
3126# Pass --with-newlib if appropriate. Note that target_configdirs has
3127# changed from the earlier setting of with_newlib.
3128if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3129 target_configargs="--with-newlib ${target_configargs}"
3130fi
3131
3132# Different target subdirs use different values of certain variables
3133# (notably CXX). Worse, multilibs use *lots* of different values.
3134# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3135# it doesn't automatically accept command-line overrides of them.
3136# This means it's not safe for target subdirs to share a cache file,
3137# which is disgusting, but there you have it. Hopefully this can be
3138# fixed in future. It's still worthwhile to use a cache file for each
3139# directory. I think.
3140
3141# Pass the appropriate --build, --host, --target and --cache-file arguments.
3142# We need to pass --target, as newer autoconf's requires consistency
3143# for target_alias and gcc doesn't manage it consistently.
3144target_configargs="--cache-file=./config.cache ${target_configargs}"
3145
3146FLAGS_FOR_TARGET=
3147case " $target_configdirs " in
3148 *" newlib "*)
3149 case " $target_configargs " in
3150 *" --with-newlib "*)
3151 case "$target" in
3152 *-cygwin*)
3153 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
3154 ;;
3155 esac
3156
3157 # If we're not building GCC, don't discard standard headers.
3158 if test -d ${srcdir}/gcc; then
3159 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
3160
3161 if test "${build}" != "${host}"; then
3162 # On Canadian crosses, CC_FOR_TARGET will have already been set
3163 # by `configure', so we won't have an opportunity to add -Bgcc/
3164 # to it. This is right: we don't want to search that directory
3165 # for binaries, but we want the header files in there, so add
3166 # them explicitly.
3167 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
3168
3169 # Someone might think of using the pre-installed headers on
3170 # Canadian crosses, in case the installed compiler is not fully
3171 # compatible with the compiler being built. In this case, it
3172 # would be better to flag an error than risking having
3173 # incompatible object files being constructed. We can't
3174 # guarantee that an error will be flagged, but let's hope the
3175 # compiler will do it, when presented with incompatible header
3176 # files.
3177 fi
3178 fi
3179
3180 case "${target}-${is_cross_compiler}" in
3181 i[[3456789]]86-*-linux*-no)
3182 # Here host == target, so we don't need to build gcc,
3183 # so we don't want to discard standard headers.
3184 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
3185 ;;
3186 *)
3187 # If we're building newlib, use its generic headers last, but search
3188 # for any libc-related directories first (so make it the last -B
3189 # switch).
3190 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
3191
3192 # If we're building libgloss, find the startup file, simulator library
3193 # and linker script.
3194 case " $target_configdirs " in
3195 *" libgloss "*)
3196 # Look for startup file, simulator library and maybe linker script.
3197 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3198 # Look for libnosys.a in case the target needs it.
3199 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3200 # Most targets have the linker script in the source directory.
3201 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3202 ;;
3203 esac
3204 ;;
3205 esac
3206 ;;
3207 esac
3208 ;;
3209esac
3210
3211case "$target" in
3212 x86_64-*mingw* | *-w64-mingw*)
3213 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3214 # however, use a symlink named 'mingw' in ${prefix} .
3215 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3216 ;;
3217 *-mingw*)
3218 # MinGW can't be handled as Cygwin above since it does not use newlib.
3219 FLAGS_FOR_TARGET=$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'
3220 ;;
3221esac
3222
3223# Allow the user to override the flags for
3224# our build compiler if desired.
3225if test x"${build}" = x"${host}" ; then
3226 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3227 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3228 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3229fi
3230
3231# On Canadian crosses, we'll be searching the right directories for
3232# the previously-installed cross compiler, so don't bother to add
3233# flags for directories within the install tree of the compiler
3234# being built; programs in there won't even run.
3235if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
3236 # Search for pre-installed headers if nothing else fits.
3237 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
3238fi
3239
3240if test "x${use_gnu_ld}" = x &&
3241 echo " ${configdirs} " | grep " ld " > /dev/null ; then
3242 # Arrange for us to find uninstalled linker scripts.
3243 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3244fi
3245
3246# Search for other target-specific linker scripts and such.
3247case "${target}" in
3248 mep*)
3249 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3250 ;;
3251esac
3252
3253# Makefile fragments.
3254for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3255do
3256 eval fragval=\$$frag
3257 if test $fragval != /dev/null; then
3258 eval $frag=${srcdir}/$fragval
3259 fi
3260done
3261AC_SUBST_FILE(host_makefile_frag)
3262AC_SUBST_FILE(target_makefile_frag)
3263AC_SUBST_FILE(alphaieee_frag)
3264AC_SUBST_FILE(ospace_frag)
3265
3266# Miscellanea: directories, flags, etc.
3267AC_SUBST(RPATH_ENVVAR)
3268AC_SUBST(GCC_SHLIB_SUBDIR)
3269AC_SUBST(tooldir)
3270AC_SUBST(build_tooldir)
3271AC_SUBST(CONFIGURE_GDB_TK)
3272AC_SUBST(GDB_TK)
3273AC_SUBST(INSTALL_GDB_TK)
3274
3275# Build module lists & subconfigure args.
3276AC_SUBST(build_configargs)
3277AC_SUBST(build_configdirs)
3278
3279# Host module lists & subconfigure args.
3280AC_SUBST(host_configargs)
3281AC_SUBST(configdirs)
3282AC_SUBST(target_configdirs)
3283
3284# Target module lists & subconfigure args.
3285AC_SUBST(target_configargs)
3286
3287
3288# Build tools.
3289AC_SUBST(AR_FOR_BUILD)
3290AC_SUBST(AS_FOR_BUILD)
3291AC_SUBST(CC_FOR_BUILD)
3292AC_SUBST(CFLAGS_FOR_BUILD)
3293AC_SUBST(CXXFLAGS_FOR_BUILD)
3294AC_SUBST(CXX_FOR_BUILD)
3295AC_SUBST(DLLTOOL_FOR_BUILD)
3296AC_SUBST(GCJ_FOR_BUILD)
3297AC_SUBST(GFORTRAN_FOR_BUILD)
3298AC_SUBST(GOC_FOR_BUILD)
3299AC_SUBST(LDFLAGS_FOR_BUILD)
3300AC_SUBST(LD_FOR_BUILD)
3301AC_SUBST(NM_FOR_BUILD)
3302AC_SUBST(RANLIB_FOR_BUILD)
3303AC_SUBST(WINDMC_FOR_BUILD)
3304AC_SUBST(WINDRES_FOR_BUILD)
3305
3306# Generate default definitions for YACC, M4, LEX and other programs that run
3307# on the build machine. These are used if the Makefile can't locate these
3308# programs in objdir.
3309MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3310
3311AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3312case " $build_configdirs " in
3313 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3314esac
3315
3316AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3317case " $build_configdirs " in
3318 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3319esac
3320
3321AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3322case " $build_configdirs " in
3323 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3324esac
3325
3326AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3327case " $build_configdirs " in
3328 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3329 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3330esac
3331
3332AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3333case " $build_configdirs " in
3334 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3335esac
3336
3337AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3338case " $build_configdirs " in
3339 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3340 *)
3341changequote(,)
3342 # For an installed makeinfo, we require it to be from texinfo 4.7 or
3343 # higher, else we use the "missing" dummy.
3344 if ${MAKEINFO} --version \
3345 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3346 :
3347 else
3348 MAKEINFO="$MISSING makeinfo"
3349 fi
3350 ;;
3351changequote([,])
3352esac
3353
3354# FIXME: expect and dejagnu may become build tools?
3355
3356AC_CHECK_PROGS(EXPECT, expect, expect)
3357case " $configdirs " in
3358 *" expect "*)
3359 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3360 ;;
3361esac
3362
3363AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3364case " $configdirs " in
3365 *" dejagnu "*)
3366 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3367 ;;
3368esac
3369
3370
3371# Host tools.
3372NCN_STRICT_CHECK_TOOLS(AR, ar)
3373NCN_STRICT_CHECK_TOOLS(AS, as)
3374NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3375NCN_STRICT_CHECK_TOOLS(LD, ld)
3376NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3377NCN_STRICT_CHECK_TOOLS(NM, nm)
3378NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3379NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3380NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3381NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3382NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3383NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3384NCN_STRICT_CHECK_TOOLS(READELF, readelf)
3385AC_SUBST(CC)
3386AC_SUBST(CXX)
3387AC_SUBST(CFLAGS)
3388AC_SUBST(CXXFLAGS)
3389
3390# Target tools.
3391AC_ARG_WITH([build-time-tools],
3392 [AS_HELP_STRING([--with-build-time-tools=PATH],
3393 [use given path to find target tools during the build])],
3394 [case x"$withval" in
3395 x/*) ;;
3396 *)
3397 with_build_time_tools=
3398 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3399 ;;
3400 esac],
3401 [with_build_time_tools=])
3402
3403NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3404NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3405NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3406NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
3407NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3408NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3409
3410ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3411ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3412ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3413ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3414ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3415ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3416ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
3417ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3418ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3419ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
3420ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3421ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3422ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3423
3424RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3425
3426GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3427GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3428GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3429dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3430GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3431 [gcc/xg++ -B$$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$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3432 c++)
3433GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3434 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
3435 c++)
3436GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3437GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3438GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
3439 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
3440GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3441 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3442GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3443 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3444GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3445GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3446GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3447GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
3448GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3449GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3450GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
3451GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3452GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3453GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3454
3455AC_SUBST(FLAGS_FOR_TARGET)
3456AC_SUBST(RAW_CXX_FOR_TARGET)
3457
3458# Certain tools may need extra flags.
3459AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3460RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3461NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3462
3463# When building target libraries, except in a Canadian cross, we use
3464# the same toolchain as the compiler we just built.
3465COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3466COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3467COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3468if test $host = $build; then
3469 case " $configdirs " in
3470 *" gcc "*)
3471 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3472 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3473 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3474 ;;
3475 esac
3476fi
3477
3478AC_SUBST(COMPILER_AS_FOR_TARGET)
3479AC_SUBST(COMPILER_LD_FOR_TARGET)
3480AC_SUBST(COMPILER_NM_FOR_TARGET)
3481
3482AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3483AC_ARG_ENABLE(maintainer-mode,
3484[AS_HELP_STRING([--enable-maintainer-mode],
3485 [enable make rules and dependencies not useful
3486 (and sometimes confusing) to the casual installer])],
3487 USE_MAINTAINER_MODE=$enableval,
3488 USE_MAINTAINER_MODE=no)
3489AC_MSG_RESULT($USE_MAINTAINER_MODE)
3490AC_SUBST(MAINTAINER_MODE_TRUE)
3491AC_SUBST(MAINTAINER_MODE_FALSE)
3492if test "$USE_MAINTAINER_MODE" = yes; then
3493 MAINTAINER_MODE_TRUE=
3494 MAINTAINER_MODE_FALSE='#'
3495else
3496 MAINTAINER_MODE_TRUE='#'
3497 MAINTAINER_MODE_FALSE=
3498fi
3499MAINT=$MAINTAINER_MODE_TRUE
3500AC_SUBST(MAINT)dnl
3501
3502# ---------------------
3503# GCC bootstrap support
3504# ---------------------
3505
3506# Stage specific cflags for build.
3507stage1_cflags="-g"
3508case $build in
3509 vax-*-*)
3510 case ${GCC} in
3511 yes) stage1_cflags="-g -Wa,-J" ;;
3512 *) stage1_cflags="-g -J" ;;
3513 esac ;;
3514esac
3515
3516AC_SUBST(stage1_cflags)
3517
3518# Enable --enable-checking in stage1 of the compiler.
3519AC_ARG_ENABLE(stage1-checking,
3520[AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3521 [choose additional checking for stage1 of the compiler])],
3522[stage1_checking=--enable-checking=${enable_stage1_checking}],
3523[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3524 # For --disable-checking or implicit --enable-checking=release, avoid
3525 # setting --enable-checking=gc in the default stage1 checking for LTO
3526 # bootstraps. See PR62077.
3527 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types
3528 case $BUILD_CONFIG in
3529 *lto*)
3530 if test "x$enable_checking" = x && \
3531 test -d ${srcdir}/gcc && \
3532 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
3533 stage1_checking=--enable-checking=yes,types
3534 fi;;
3535 *) stage1_checking=--enable-checking=yes,types;;
3536 esac
3537else
3538 stage1_checking=--enable-checking=$enable_checking,types
3539fi])
3540AC_SUBST(stage1_checking)
3541
3542# Enable -Werror in bootstrap stage2 and later.
3543AC_ARG_ENABLE(werror,
3544[AS_HELP_STRING([--enable-werror],
3545 [enable -Werror in bootstrap stage2 and later])], [],
3546[if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3547 enable_werror=yes
3548else
3549 enable_werror=no
3550fi])
3551case ${enable_werror} in
3552 yes) stage2_werror_flag="--enable-werror-always" ;;
3553 *) stage2_werror_flag="" ;;
3554esac
3555AC_SUBST(stage2_werror_flag)
3556
3557# Enable --enable-host-shared.
3558AC_ARG_ENABLE(host-shared,
3559[AS_HELP_STRING([--enable-host-shared],
3560 [build host code as shared libraries])],
3561[host_shared=$enableval], [host_shared=no])
3562AC_SUBST(host_shared)
3563
3564# PR jit/64780: Require the user to explicitly specify
3565# --enable-host-shared if the jit is enabled, hinting
3566# that they might want to do a separate configure/build of
3567# the jit, to avoid users from slowing down the rest of the
3568# compiler by enabling the jit.
3569if test ${host_shared} = "no" ; then
3570 case "${enable_languages}" in
3571 *jit*)
3572 AC_MSG_ERROR([
3573Enabling language "jit" requires --enable-host-shared.
3574
3575--enable-host-shared typically slows the rest of the compiler down by
3576a few %, so you must explicitly enable it.
3577
3578If you want to build both the jit and the regular compiler, it is often
3579best to do this via two separate configure/builds, in separate
3580directories, to avoid imposing the performance cost of
3581--enable-host-shared on the regular compiler.])
3582 ;;
3583 *)
3584 ;;
3585 esac
3586fi
3587
3588# Specify what files to not compare during bootstrap.
3589
3590compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3591case "$target" in
3592 hppa*64*-*-hpux*) ;;
3593 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
3594 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
3595esac
3596AC_SUBST(compare_exclusions)
3597
3598AC_CONFIG_FILES([Makefile],
3599 [sed "$extrasub_build" Makefile |
3600 sed "$extrasub_host" |
3601 sed "$extrasub_target" > mf$$
3602 mv -f mf$$ Makefile],
3603 [extrasub_build="$extrasub_build"
3604 extrasub_host="$extrasub_host"
3605 extrasub_target="$extrasub_target"])
3606AC_OUTPUT
GDB Binutils - Deliverables
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