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re PR c++/49508 (Bogus "control reaches end of non-void function" warning)
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CommitLineData
beeaf216 1# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
ec8fd1c0
AS		 2# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
3# 2014, 2015 Free Software Foundation, Inc.
6599da04
JM		 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
309c24a9 7# the Free Software Foundation; either version 3 of the License, or
6599da04
JM		 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
309c24a9
JJ		 16# along with this program; see the file COPYING3. If not see
17# <http://www.gnu.org/licenses/>.
6599da04
JM		 18
19##############################################################################
671aa708
NN		 20### WARNING: this file contains embedded tabs. Do not run untabify on this file.
21
7142fb32
PB		 22m4_include(config/acx.m4)
23m4_include(config/override.m4)
38d24731 24m4_include(config/proginstall.m4)
7413962d 25m4_include(config/elf.m4)
592c90ff
KG		 26m4_include([libtool.m4])
27m4_include([ltoptions.m4])
28m4_include([ltsugar.m4])
29m4_include([ltversion.m4])
30m4_include([lt~obsolete.m4])
33ad93b9 31m4_include([config/isl.m4])
ad6717df 32
671aa708 33AC_INIT(move-if-change)
df58e648 34AC_PREREQ(2.64)
0115d4a3 35AC_DISABLE_OPTION_CHECKING
1c710c3c 36
ad33ff57
RW		 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
1c710c3c
DJ		 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
671aa708
NN		 79AC_CANONICAL_SYSTEM
80AC_ARG_PROGRAM
81
1c710c3c 82m4_pattern_allow([^AS_FOR_TARGET$])dnl
0999159b 83m4_pattern_allow([^AS_FOR_BUILD$])dnl
1c710c3c 84
775956d0
NN		 85# Get 'install' or 'install-sh' and its variants.
86AC_PROG_INSTALL
ad6717df 87ACX_PROG_LN
148907ea 88AC_PROG_LN_S
87264276
PB		 89AC_PROG_SED
90AC_PROG_AWK
775956d0 91
fc45f3fe
DJ		 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
671aa708
NN		 100# Set srcdir to "." if that's what it is.
101# This is important for multilib support.
102pwd=`${PWDCMD-pwd}`
671aa708
NN		 103if test "${pwd}" = "${srcpwd}" ; then
104 srcdir=.
105fi
106
107topsrcdir=$srcpwd
6599da04 108
4977bab6 109extra_host_args=
afabd8e6 110
6599da04
JM		 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
4977bab6
ZW		 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.
6599da04 121
4977bab6
ZW		 122# Double entries in build_configdirs, configdirs, or target_configdirs may
123# cause circular dependencies and break everything horribly.
6599da04 124
23f6b2f9
PB		 125# these library is used by various programs built for the build
126# environment
127#
929315a9 128build_libs="build-libiberty build-libcpp"
23f6b2f9
PB		 129
130# these tools are built for the build environment
85bfb75e 131build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
23f6b2f9 132
6599da04 133# these libraries are used by various programs built for the host environment
eae1a5d4 134#f
4a9bb2aa 135host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv"
6599da04 136
6599da04
JM		 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.
4977bab6
ZW		 140# binutils, gas and ld appear in that order because it makes sense to run
141# "make check" in that particular order.
38e3d868 142# If --enable-gold is used, "gold" may replace "ld".
bf1de3f0 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"
5d4a5ee6 144
7743113b
AG		 145# libgcj represents the runtime libraries only used by gcj.
146libgcj="target-libffi \
7743113b 147 target-zlib \
7743113b
AG		 148 target-libjava"
149
6599da04
JM		 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)
8499116a 152# Note that libiberty is not a target library.
291f172e 153target_libraries="target-libgcc \
eff02e4f 154 target-libbacktrace \
5d4a5ee6
JL		 155 target-libgloss \
156 target-newlib \
6d3b5aea 157 target-libgomp \
3038054c 158 target-libcilkrts \
5f520819 159 target-liboffloadmic \
48310492 160 target-libatomic \
0a35513e 161 target-libitm \
cb543528 162 target-libstdc++-v3 \
f35db108 163 target-libsanitizer \
2077db1b 164 target-libvtv \
77008252 165 target-libssp \
1ec601bf 166 target-libquadmath \
6de9cd9a 167 target-libgfortran \
7cd0cf9c 168 target-boehm-gc \
77d187bc 169 ${libgcj} \
d9cdb878 170 target-libobjc \
632e2a07
ILT		 171 target-libada \
172 target-libgo"
6599da04 173
4dbda6f0
NN		 174# these tools are built using the target libraries, and are intended to
175# run only in the target environment
6599da04 176#
4dbda6f0 177# note: any program that *uses* libraries that are in the "target_libraries"
1bcce263 178# list belongs in this list.
6599da04 179#
85bfb75e 180target_tools="target-rda"
6599da04
JM		 181
182################################################################################
183
6599da04
JM		 184## All tools belong in one of the four categories, and are assigned above
185## We assign ${configdirs} this way to remove all embedded newlines. This
186## is important because configure will choke if they ever get through.
187## ${configdirs} is directories we build using the host tools.
188## ${target_configdirs} is directories we build using the target tools.
6599da04 189configdirs=`echo ${host_libs} ${host_tools}`
4dbda6f0 190target_configdirs=`echo ${target_libraries} ${target_tools}`
71b5d516 191build_configdirs=`echo ${build_libs} ${build_tools}`
8b87bb96 192
ac9e6043 193m4_divert_text([PARSE_ARGS],
87841584
AM		 194[case $srcdir in
195 *" "*)
196m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
197 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
198m4_popdef([AS_MESSAGE_LOG_FD])dnl
199 ;;
200esac
201ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
ac9e6043
RW		 202])
203
6599da04
JM		 204################################################################################
205
6599da04
JM		 206srcname="gnu development package"
207
208# This gets set non-empty for some net releases of packages.
209appdirs=""
210
e1848dde
NN		 211# Define is_cross_compiler to save on calls to 'test'.
212is_cross_compiler=
213if test x"${host}" = x"${target}" ; then
214 is_cross_compiler=no
215else
216 is_cross_compiler=yes
217fi
218
b4acb5ef 219# Find the build and target subdir names.
8b87bb96 220GCC_TOPLEV_SUBDIRS
0db770bd
RW		 221# Be sure to cover against remnants of an in-tree build.
222if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
223 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
224Use a pristine source tree when building in a separate tree])
225fi
f653f0ab 226
55380b08
NN		 227# Skipdirs are removed silently.
228skipdirs=
229# Noconfigdirs are removed loudly.
230noconfigdirs=""
6599da04 231
55380b08
NN		 232use_gnu_ld=
233# Make sure we don't let GNU ld be added if we didn't want it.
234if test x$with_gnu_ld = xno ; then
235 use_gnu_ld=no
5afab7ad 236 noconfigdirs="$noconfigdirs ld gold"
6599da04
JM		 237fi
238
55380b08
NN		 239use_gnu_as=
240# Make sure we don't let GNU as be added if we didn't want it.
241if test x$with_gnu_as = xno ; then
242 use_gnu_as=no
243 noconfigdirs="$noconfigdirs gas"
6599da04
JM		 244fi
245
d7f09764
DN		 246use_included_zlib=
247# Make sure we don't let ZLIB be added if we didn't want it.
248if test x$with_system_zlib = xyes ; then
249 use_included_zlib=no
250 noconfigdirs="$noconfigdirs zlib"
251fi
252
55380b08
NN		 253# some tools are so dependent upon X11 that if we're not building with X,
254# it's not even worth trying to configure, much less build, that tool.
6599da04 255
55380b08
NN		 256case ${with_x} in
257 yes | "") ;; # the default value for this tree is that X11 is available
423ce3eb 258 no)
b4f96efe 259 skipdirs="${skipdirs} tk itcl libgui"
423ce3eb
NN		 260 # We won't be able to build gdbtk without X.
261 enable_gdbtk=no
262 ;;
55380b08
NN		 263 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
264esac
6599da04 265
1bcce263 266# Some are only suitable for cross toolchains.
95ddd785
NN		 267# Remove these if host=target.
268cross_only="target-libgloss target-newlib target-opcodes"
6599da04 269
55380b08
NN		 270case $is_cross_compiler in
271 no) skipdirs="${skipdirs} ${cross_only}" ;;
55380b08 272esac
6599da04 273
0c639b89
DD		 274# If both --with-headers and --with-libs are specified, default to
275# --without-newlib.
9082a750
MR		 276if test x"${with_headers}" != x && test x"${with_headers}" != xno \
277 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
0c639b89
DD		 278 if test x"${with_newlib}" = x ; then
279 with_newlib=no
280 fi
281fi
282
283# Recognize --with-newlib/--without-newlib.
284case ${with_newlib} in
285 no) skipdirs="${skipdirs} target-newlib" ;;
286 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
287esac
288
85c64bbe
BS		 289AC_ARG_ENABLE(as-accelerator-for,
290[AS_HELP_STRING([--enable-as-accelerator-for=ARG],
291 [build as offload target compiler.
4b4f2e35 292 Specify offload host triple by ARG])])
85c64bbe
BS		 293
294AC_ARG_ENABLE(offload-targets,
295[AS_HELP_STRING([--enable-offload-targets=LIST],
296 [enable offloading to devices from comma-separated LIST of
297 TARGET[=DIR]. Use optional path to find offload target compiler
298 during the build])],
299[
300 if test x"$enable_offload_targets" = x; then
301 AC_MSG_ERROR([no offload targets specified])
302 fi
303], [enable_offload_targets=])
304
21539e2e
MK		 305# Handle --enable-gold, --enable-ld.
306# --disable-gold [--enable-ld]
307# Build only ld. Default option.
9580395f
L		 308# --enable-gold [--enable-ld]
309# Build both gold and ld. Install gold as "ld.gold", install ld
310# as "ld.bfd" and "ld".
311# --enable-gold=default [--enable-ld]
21539e2e
MK		 312# Build both gold and ld. Install gold as "ld.gold" and "ld",
313# install ld as "ld.bfd".
314# --enable-gold[=default] --disable-ld
315# Build only gold, which is then installed as both "ld.gold" and "ld".
316# --enable-gold --enable-ld=default
9580395f
L		 317# Build both gold (installed as "ld.gold") and ld (installed as "ld"
318# and ld.bfd).
21539e2e
MK		 319# In other words, ld is default
320# --enable-gold=default --enable-ld=default
321# Error.
322
323default_ld=
5afab7ad 324AC_ARG_ENABLE(gold,
33e39b66
AS		 325[AS_HELP_STRING([[--enable-gold[=ARG]]],
326 [build gold @<:@ARG={default,yes,no}@:>@])],
5afab7ad
ILT		 327ENABLE_GOLD=$enableval,
328ENABLE_GOLD=no)
21539e2e
MK		 329case "${ENABLE_GOLD}" in
330 yes|default)
38e3d868
RM		 331 # Check for ELF target.
332 is_elf=no
333 case "${target}" in
334 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
0e76460f 335 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
8c6d158a 336 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
ff4b7a7e 337 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
38e3d868
RM		 338 case "${target}" in
339 *-*-linux*aout* | *-*-linux*oldld*)
340 ;;
341 *)
342 is_elf=yes
343 ;;
344 esac
345 esac
346
347 if test "$is_elf" = "yes"; then
348 # Check for target supported by gold.
5afab7ad 349 case "${target}" in
7705dfd1
JY		 350 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
351 | aarch64*-*-* | tilegx*-*-*)
21539e2e
MK		 352 configdirs="$configdirs gold"
353 if test x${ENABLE_GOLD} = xdefault; then
354 default_ld=gold
355 fi
38e3d868 356 ENABLE_GOLD=yes
5afab7ad
ILT		 357 ;;
358 esac
38e3d868
RM		 359 fi
360 ;;
361 no)
362 ;;
363 *)
364 AC_MSG_ERROR([invalid --enable-gold argument])
365 ;;
21539e2e
MK		 366esac
367
368AC_ARG_ENABLE(ld,
33e39b66
AS		 369[AS_HELP_STRING([[--enable-ld[=ARG]]],
370 [build ld @<:@ARG={default,yes,no}@:>@])],
21539e2e
MK		 371ENABLE_LD=$enableval,
372ENABLE_LD=yes)
373
374case "${ENABLE_LD}" in
375 default)
9580395f 376 if test x${default_ld} != x; then
21539e2e
MK		 377 AC_MSG_ERROR([either gold or ld can be the default ld])
378 fi
379 ;;
380 yes)
381 ;;
382 no)
383 if test x${ENABLE_GOLD} != xyes; then
384 AC_MSG_WARN([neither ld nor gold are enabled])
385 fi
386 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
387 ;;
388 *)
389 AC_MSG_ERROR([invalid --enable-ld argument])
390 ;;
391esac
5afab7ad 392
6599da04
JM		 393# Configure extra directories which are host specific
394
395case "${host}" in
55380b08 396 *-cygwin*)
4977bab6 397 configdirs="$configdirs libtermcap" ;;
6599da04
JM		 398esac
399
4fab7234
HPN		 400# A target can indicate whether a language isn't supported for some reason.
401# Only spaces may be used in this macro; not newlines or tabs.
402unsupported_languages=
403
6599da04
JM		 404# Remove more programs from consideration, based on the host or
405# target this usually means that a port of the program doesn't
406# exist yet.
407
6599da04 408case "${host}" in
111eeb6e 409 i[[3456789]]86-*-msdosdjgpp*)
c9bdb152 410 noconfigdirs="$noconfigdirs tcl tk itcl"
5d4a5ee6 411 ;;
6599da04
JM		 412esac
413
6de9cd9a 414
87e6d9dc
TB		 415AC_ARG_ENABLE(libquadmath,
416AS_HELP_STRING([--disable-libquadmath],
417 [do not build libquadmath directory]),
418ENABLE_LIBQUADMATH=$enableval,
419ENABLE_LIBQUADMATH=yes)
420if test "${ENABLE_LIBQUADMATH}" = "no" ; then
421 noconfigdirs="$noconfigdirs target-libquadmath"
422fi
423
424
425AC_ARG_ENABLE(libquadmath-support,
426AS_HELP_STRING([--disable-libquadmath-support],
427 [disable libquadmath support for Fortran]),
428ENABLE_LIBQUADMATH_SUPPORT=$enableval,
429ENABLE_LIBQUADMATH_SUPPORT=yes)
430enable_libquadmath_support=
431if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
432 enable_libquadmath_support=no
433fi
434
435
d9cdb878 436AC_ARG_ENABLE(libada,
33e39b66 437[AS_HELP_STRING([--enable-libada], [build libada directory])],
d9cdb878
AC		 438ENABLE_LIBADA=$enableval,
439ENABLE_LIBADA=yes)
440if test "${ENABLE_LIBADA}" != "yes" ; then
5395b47b 441 noconfigdirs="$noconfigdirs gnattools"
d9cdb878
AC		 442fi
443
ef0087a7 444AC_ARG_ENABLE(libssp,
33e39b66 445[AS_HELP_STRING([--enable-libssp], [build libssp directory])],
ef0087a7
KH		 446ENABLE_LIBSSP=$enableval,
447ENABLE_LIBSSP=yes)
ef0087a7 448
2588b26e
RM		 449AC_ARG_ENABLE(libstdcxx,
450AS_HELP_STRING([--disable-libstdcxx],
451 [do not build libstdc++-v3 directory]),
452ENABLE_LIBSTDCXX=$enableval,
453ENABLE_LIBSTDCXX=default)
454[if test "${ENABLE_LIBSTDCXX}" = "no" ; then
1007a55c 455 noconfigdirs="$noconfigdirs target-libstdc++-v3"
2588b26e
RM		 456fi]
457
5f520819
KY		 458# If this is accelerator compiler and its target is intelmic we enable
459# target liboffloadmic by default. If this is compiler with offloading
460# for intelmic we enable host liboffloadmic by default. Otherwise
461# liboffloadmic is disabled by default.
462AC_ARG_ENABLE([liboffloadmic],
463AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
464 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
465[case "$enableval" in
466 no | host | target)
467 enable_liboffloadmic=$enableval ;;
468 *)
469 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
470esac],
4b4f2e35 471[if test x"$enable_as_accelerator_for" != x; then
5f520819
KY		 472 case "${target}" in
473 *-intelmic-* | *-intelmicemul-*)
474 enable_liboffloadmic=target
475 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
476 ;;
477 *)
478 enable_liboffloadmic=no
479 ;;
480 esac
481else
482 case "${enable_offload_targets}" in
483 *-intelmic-* | *-intelmicemul-*)
484 enable_liboffloadmic=host
485 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
486 ;;
487 *)
488 enable_liboffloadmic=no
489 ;;
490 esac
491fi])
492AC_SUBST(extra_liboffloadmic_configure_flags)
493
8343765d
AO		 494# Save it here so that, even in case of --enable-libgcj, if the Java
495# front-end isn't enabled, we still get libgcj disabled.
496libgcj_saved=$libgcj
497case $enable_libgcj in
498yes)
499 # If we reset it here, it won't get added to noconfigdirs in the
500 # target-specific build rules, so it will be forcibly enabled
501 # (unless the Java language itself isn't enabled).
502 libgcj=
503 ;;
504no)
505 # Make sure we get it printed in the list of not supported target libs.
4da3b0f8
ILT		 506 # Don't disable libffi, though, other languages use it.
507 noconfigdirs="$noconfigdirs `echo ${libgcj} | sed -e 's/target-libffi//'`"
d479b128
ILT		 508 # Clear libgcj_saved so that even if java is enabled libffi won't be
509 # built.
510 libgcj_saved=
8343765d
AO		 511 ;;
512esac
513
a4a2c37d
MK		 514AC_ARG_ENABLE(static-libjava,
515[AS_HELP_STRING([[--enable-static-libjava[=ARG]]],
516 [build static libjava @<:@default=no@:>@])],
517ENABLE_STATIC_LIBJAVA=$enableval,
518ENABLE_STATIC_LIBJAVA=no)
519enable_static_libjava=
520if test "${ENABLE_STATIC_LIBJAVA}" = "yes" ; then
521 enable_static_libjava=yes
522fi
523
524if test x$enable_static_libjava != xyes ; then
525 EXTRA_CONFIGARGS_LIBJAVA=--disable-static
526fi
527AC_SUBST(EXTRA_CONFIGARGS_LIBJAVA)
6de9cd9a 528
27079765
AH		 529# Disable libgomp on non POSIX hosted systems.
530if test x$enable_libgomp = x ; then
953ff289
DN		 531 # Enable libgomp by default on hosted POSIX systems.
532 case "${target}" in
416ac4d4 533 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
953ff289 534 ;;
8c6d158a 535 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
953ff289 536 ;;
b24513a1 537 *-*-solaris2* | *-*-hpux11*)
953ff289 538 ;;
cac90078 539 *-*-darwin* | *-*-aix*)
953ff289
DN		 540 ;;
541 *)
542 noconfigdirs="$noconfigdirs target-libgomp"
543 ;;
544 esac
27079765 545fi
953ff289 546
48310492
RH		 547# Disable libatomic on unsupported systems.
548if test -d ${srcdir}/libatomic; then
549 if test x$enable_libatomic = x; then
550 AC_MSG_CHECKING([for libatomic support])
551 if (srcdir=${srcdir}/libatomic; \
552 . ${srcdir}/configure.tgt; \
553 test -n "$UNSUPPORTED")
554 then
555 AC_MSG_RESULT([no])
556 noconfigdirs="$noconfigdirs target-libatomic"
557 else
558 AC_MSG_RESULT([yes])
559 fi
560 fi
561fi
562
3038054c
BI		 563# Disable libcilkrts on unsupported systems.
564if test -d ${srcdir}/libcilkrts; then
565 if test x$enable_libcilkrts = x; then
566 AC_MSG_CHECKING([for libcilkrts support])
567 if (srcdir=${srcdir}/libcilkrts; \
568 . ${srcdir}/configure.tgt; \
569 test -n "$UNSUPPORTED")
570 then
571 AC_MSG_RESULT([no])
572 noconfigdirs="$noconfigdirs target-libcilkrts"
573 else
574 AC_MSG_RESULT([yes])
575 fi
576 fi
577fi
578
5f520819
KY		 579# Disable liboffloadmic on unsupported systems.
580if test -d ${srcdir}/liboffloadmic; then
581 if test x$enable_liboffloadmic != xno; then
582 AC_MSG_CHECKING([for liboffloadmic support])
583 if (srcdir=${srcdir}/liboffloadmic; \
584 . ${srcdir}/configure.tgt; \
585 test -n "$UNSUPPORTED")
586 then
587 AC_MSG_RESULT([no])
588 noconfigdirs="$noconfigdirs target-liboffloadmic"
589 else
590 AC_MSG_RESULT([yes])
591 fi
592 fi
593fi
594
e948157d
RH		 595# Disable libitm on unsupported systems.
596if test -d ${srcdir}/libitm; then
597 if test x$enable_libitm = x; then
598 AC_MSG_CHECKING([for libitm support])
599 if (srcdir=${srcdir}/libitm; \
600 . ${srcdir}/configure.tgt; \
601 test -n "$UNSUPPORTED")
602 then
603 AC_MSG_RESULT([no])
604 noconfigdirs="$noconfigdirs target-libitm"
605 else
606 AC_MSG_RESULT([yes])
607 fi
608 fi
0a35513e
AH		 609fi
610
93bf5390
RH		 611# Disable libsanitizer on unsupported systems.
612if test -d ${srcdir}/libsanitizer; then
613 if test x$enable_libsanitizer = x; then
614 AC_MSG_CHECKING([for libsanitizer support])
615 if (srcdir=${srcdir}/libsanitizer; \
616 . ${srcdir}/configure.tgt; \
617 test -n "$UNSUPPORTED")
618 then
619 AC_MSG_RESULT([no])
620 noconfigdirs="$noconfigdirs target-libsanitizer"
621 else
622 AC_MSG_RESULT([yes])
623 fi
624 fi
625fi
626
2077db1b
CT		 627# Disable libvtv on unsupported systems.
628if test -d ${srcdir}/libvtv; then
629 if test x$enable_libvtv = x; then
630 AC_MSG_CHECKING([for libvtv support])
631 if (srcdir=${srcdir}/libvtv; \
632 . ${srcdir}/configure.tgt; \
1e74b850 633 test "$VTV_SUPPORTED" != "yes")
2077db1b
CT		 634 then
635 AC_MSG_RESULT([no])
636 noconfigdirs="$noconfigdirs target-libvtv"
637 else
638 AC_MSG_RESULT([yes])
639 fi
640 fi
641fi
642
d7a29167
DE		 643# Disable libquadmath for some systems.
644case "${target}" in
e7fae550
DE		 645 avr-*-*)
646 noconfigdirs="$noconfigdirs target-libquadmath"
647 ;;
d7a29167
DE		 648 # libquadmath is unused on AIX and libquadmath build process use of
649 # LD_LIBRARY_PATH can break AIX bootstrap.
650 powerpc-*-aix* | rs6000-*-aix*)
651 noconfigdirs="$noconfigdirs target-libquadmath"
652 ;;
653esac
654
1e9e0e23
JM		 655# Disable libssp for some systems.
656case "${target}" in
657 avr-*-*)
b318fb4b 658 # No hosted I/O support.
1e9e0e23
JM		 659 noconfigdirs="$noconfigdirs target-libssp"
660 ;;
661 powerpc-*-aix* | rs6000-*-aix*)
662 noconfigdirs="$noconfigdirs target-libssp"
663 ;;
85b8555e
DD		 664 rl78-*-*)
665 # libssp uses a misaligned load to trigger a fault, but the RL78
666 # doesn't fault for those - instead, it gives a build-time error
667 # for explicit misaligned loads.
668 noconfigdirs="$noconfigdirs target-libssp"
669 ;;
0969ec7d
EB		 670 visium-*-*)
671 # No hosted I/O support.
672 noconfigdirs="$noconfigdirs target-libssp"
673 ;;
1e9e0e23
JM		 674esac
675
1e9e0e23 676# Disable libstdc++-v3 for some systems.
2588b26e
RM		 677# Allow user to override this if they pass --enable-libstdc++-v3
678if test "${ENABLE_LIBSTDCXX}" = "default" ; then
679 case "${target}" in
680 *-*-vxworks*)
681 # VxWorks uses the Dinkumware C++ library.
682 noconfigdirs="$noconfigdirs target-libstdc++-v3"
683 ;;
684 arm*-wince-pe*)
685 # the C++ libraries don't build on top of CE's C libraries
686 noconfigdirs="$noconfigdirs target-libstdc++-v3"
687 ;;
688 avr-*-*)
689 noconfigdirs="$noconfigdirs target-libstdc++-v3"
690 ;;
691 esac
692fi
1e9e0e23
JM		 693
694# Disable Fortran for some systems.
695case "${target}" in
696 mmix-*-*)
697 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
698 unsupported_languages="$unsupported_languages fortran"
699 ;;
700esac
701
80f81134 702# Disable Java if libffi is not supported.
2909494b 703case "${target}" in
eb7062cf
AS		 704 aarch64-*-*)
705 ;;
80f81134
JM		 706 alpha*-*-*)
707 ;;
708 arm*-*-*)
709 ;;
710 cris-*-*)
711 ;;
712 frv-*-*)
713 ;;
714 hppa*-*-linux*)
715 ;;
716 hppa*-*-hpux*)
717 ;;
718 i?86-*-*)
719 ;;
720 ia64*-*-*)
721 ;;
722 m32r*-*-*)
723 ;;
724 m68k-*-*)
725 ;;
b24513a1 726 mips*-*-rtems*)
80f81134
JM		 727 ;;
728 mips*-*-linux*)
729 ;;
730 powerpc*-*-linux*)
731 ;;
732 powerpc-*-darwin*)
733 ;;
734 powerpc-*-aix* | rs6000-*-aix*)
735 ;;
736 powerpc-*-freebsd*)
737 ;;
738 powerpc64-*-freebsd*)
739 ;;
740 powerpc*-*-rtems*)
2909494b 741 ;;
80f81134
JM		 742 s390-*-* | s390x-*-*)
743 ;;
744 sh-*-* | sh[[34]]*-*-*)
745 ;;
746 sh64-*-* | sh5*-*-*)
747 ;;
748 sparc*-*-*)
749 ;;
750 x86_64-*-*)
751 ;;
752 *-*-*)
753 unsupported_languages="$unsupported_languages java"
754 ;;
755esac
756
757# Disable Java, libgcj or related libraries for some systems.
758case "${target}" in
2909494b
JM		 759 powerpc-*-darwin*)
760 ;;
761 i[[3456789]]86-*-darwin*)
762 ;;
763 x86_64-*-darwin[[912]]*)
764 ;;
765 *-*-darwin*)
766 noconfigdirs="$noconfigdirs ${libgcj}"
767 ;;
2909494b
JM		 768 *-*-netware*)
769 noconfigdirs="$noconfigdirs ${libgcj}"
770 ;;
771 *-*-rtems*)
772 noconfigdirs="$noconfigdirs ${libgcj}"
773 ;;
774 *-*-tpf*)
775 noconfigdirs="$noconfigdirs ${libgcj}"
776 ;;
777 *-*-uclinux*)
778 noconfigdirs="$noconfigdirs ${libgcj}"
779 ;;
780 *-*-vxworks*)
781 noconfigdirs="$noconfigdirs ${libgcj}"
782 ;;
2909494b
JM		 783 alpha*-*-*vms*)
784 noconfigdirs="$noconfigdirs ${libgcj}"
785 ;;
82a19768
AT		 786 arm*-*-freebsd*)
787 noconfigdirs="$noconfigdirs ${libgcj}"
788 ;;
80f81134 789 arm-wince-pe)
2909494b
JM		 790 noconfigdirs="$noconfigdirs ${libgcj}"
791 ;;
2909494b
JM		 792 arm*-*-symbianelf*)
793 noconfigdirs="$noconfigdirs ${libgcj}"
794 ;;
2909494b 795 bfin-*-*)
2909494b
JM		 796 noconfigdirs="$noconfigdirs target-boehm-gc"
797 ;;
2909494b
JM		 798 cris-*-* | crisv32-*-*)
799 unsupported_languages="$unsupported_languages java"
800 case "${target}" in
801 *-*-linux*)
802 ;;
803 *) # See PR46792 regarding target-libffi.
804 noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
805 esac
806 ;;
2909494b
JM		 807 hppa*64*-*-linux*)
808 # In this case, it's because the hppa64-linux target is for
809 # the kernel only at this point and has no libc, and thus no
810 # headers, crt*.o, etc., all of which are needed by these.
fddf9ee7 811 unsupported_languages="$unsupported_languages java"
2909494b 812 ;;
fddf9ee7 813 hppa*64*-*-hpux*)
2909494b
JM		 814 noconfigdirs="$noconfigdirs ${libgcj}"
815 ;;
816 hppa*-hp-hpux11*)
817 ;;
fddf9ee7 818 hppa*-*-hpux*)
2909494b
JM		 819 # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
820 # build on HP-UX 10.20.
821 noconfigdirs="$noconfigdirs ${libgcj}"
822 ;;
2909494b
JM		 823 ia64*-*-*vms*)
824 noconfigdirs="$noconfigdirs ${libgcj}"
825 ;;
2909494b
JM		 826 i[[3456789]]86-w64-mingw*)
827 noconfigdirs="$noconfigdirs ${libgcj}"
828 ;;
829 i[[3456789]]86-*-mingw*)
830 noconfigdirs="$noconfigdirs ${libgcj}"
831 ;;
832 x86_64-*-mingw*)
833 noconfigdirs="$noconfigdirs ${libgcj}"
834 ;;
2909494b
JM		 835 mmix-*-*)
836 noconfigdirs="$noconfigdirs target-libffi target-boehm-gc"
2909494b
JM		 837 ;;
838 powerpc-*-aix*)
839 # copied from rs6000-*-* entry
840 noconfigdirs="$noconfigdirs ${libgcj}"
841 ;;
2909494b
JM		 842 rs6000-*-aix*)
843 noconfigdirs="$noconfigdirs ${libgcj}"
844 ;;
2909494b
JM		 845 *-*-lynxos*)
846 noconfigdirs="$noconfigdirs ${libgcj}"
1335a8ca 847 ;;
2909494b
JM		 848esac
849
1335a8ca
JBG		 850# Disable the go frontend on systems where it is known to not work. Please keep
851# this in sync with contrib/config-list.mk.
74cc5471
ILT		 852case "${target}" in
853*-*-darwin* | *-*-cygwin* | *-*-mingw* | *-*-aix*)
854 unsupported_languages="$unsupported_languages go"
855 ;;
856esac
857
cdbc9e92
ILT		 858# Disable libgo for some systems where it is known to not work.
859# For testing, you can easily override this with --enable-libgo.
860if test x$enable_libgo = x; then
861 case "${target}" in
862 *-*-darwin*)
863 # PR 46986
864 noconfigdirs="$noconfigdirs target-libgo"
865 ;;
866 *-*-cygwin* | *-*-mingw*)
867 noconfigdirs="$noconfigdirs target-libgo"
868 ;;
869 *-*-aix*)
870 noconfigdirs="$noconfigdirs target-libgo"
871 ;;
872 esac
873fi
874
c03353e2
RIL		 875# Default libgloss CPU subdirectory.
876libgloss_dir="$target_cpu"
6de9cd9a 877
fbcf0dca
JM		 878case "${target}" in
879 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
880 libgloss_dir=wince
881 ;;
4dddfc74
YZ		 882 aarch64*-*-* )
883 libgloss_dir=aarch64
884 ;;
fbcf0dca
JM		 885 arm*-*-*)
886 libgloss_dir=arm
887 ;;
888 cris-*-* | crisv32-*-*)
889 libgloss_dir=cris
890 ;;
891 hppa*-*-*)
892 libgloss_dir=pa
893 ;;
894 i[[3456789]]86-*-*)
895 libgloss_dir=i386
896 ;;
897 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
898 libgloss_dir=m68hc11
899 ;;
900 m68*-*-* | fido-*-*)
901 libgloss_dir=m68k
902 ;;
903 mips*-*-*)
904 libgloss_dir=mips
905 ;;
906 powerpc*-*-*)
907 libgloss_dir=rs6000
908 ;;
909 sparc*-*-*)
910 libgloss_dir=sparc
911 ;;
912esac
913
6a789d5e 914# Disable newlib and libgloss for various target OSes.
6599da04 915case "${target}" in
6a789d5e
JM		 916 alpha*-dec-osf*)
917 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
918 ;;
919 i[[3456789]]86-*-linux*)
920 # This section makes it possible to build newlib natively on linux.
921 # If we are using a cross compiler then don't configure newlib.
922 if test x${is_cross_compiler} != xno ; then
923 noconfigdirs="$noconfigdirs target-newlib"
924 fi
925 noconfigdirs="$noconfigdirs target-libgloss"
926 # If we are not using a cross compiler, do configure newlib.
927 # Note however, that newlib will only be configured in this situation
928 # if the --with-newlib option has been given, because otherwise
929 # 'target-newlib' will appear in skipdirs.
930 ;;
931 i[[3456789]]86-*-rdos*)
932 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
933 ;;
934 sh*-*-pe|mips*-*-pe|arm-wince-pe)
935 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
936 ;;
937 sparc-*-sunos4*)
938 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
939 ;;
940 *-*-aix*)
941 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
942 ;;
943 *-*-beos*)
944 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
945 ;;
3fa03ff9 946 *-*-chorusos)
0036370f 947 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
3fa03ff9 948 ;;
6a789d5e
JM		 949 *-*-dragonfly*)
950 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
951 ;;
952 *-*-freebsd*)
953 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
954 ;;
955 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
956 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
957 ;;
958 *-*-lynxos*)
959 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
960 ;;
961 *-*-mingw*)
962 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
963 ;;
964 *-*-netbsd*)
965 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
966 ;;
967 *-*-netware*)
968 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
969 ;;
970 *-*-tpf*)
971 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
972 ;;
973 *-*-uclinux*)
974 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
975 ;;
976 *-*-vxworks*)
977 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
978 ;;
979esac
980
981case "${target}" in
982 *-*-chorusos)
983 ;;
75eeae1a 984 powerpc-*-darwin*)
e1514c3f 985 noconfigdirs="$noconfigdirs ld gas gdb gprof"
9c8f9ec2 986 noconfigdirs="$noconfigdirs sim target-rda"
940cde4d 987 ;;
354ebf88
RW		 988 i[[3456789]]86-*-darwin*)
989 noconfigdirs="$noconfigdirs ld gprof"
990 noconfigdirs="$noconfigdirs sim target-rda"
991 ;;
992 x86_64-*-darwin[[912]]*)
0db3a858
TG		 993 noconfigdirs="$noconfigdirs ld gas gprof"
994 noconfigdirs="$noconfigdirs sim target-rda"
995 ;;
42c1cd8a
AT		 996 *-*-darwin*)
997 noconfigdirs="$noconfigdirs ld gas gdb gprof"
998 noconfigdirs="$noconfigdirs sim target-rda"
42c1cd8a 999 ;;
8c6d158a 1000 *-*-dragonfly*)
8c6d158a 1001 ;;
c3f84f61 1002 *-*-freebsd*)
6de9cd9a
DN		 1003 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
1004 && test -f /usr/local/include/gmp.h; then
1005 with_gmp=/usr/local
1006 fi
6de9cd9a 1007 ;;
ef4e7569
US		 1008 *-*-kaos*)
1009 # Remove unsupported stuff on all kaOS configurations.
ef4e7569
US		 1010 noconfigdirs="$noconfigdirs target-libgloss"
1011 ;;
51584787 1012 *-*-netbsd*)
51584787 1013 ;;
61fec9ff 1014 *-*-netware*)
6599da04 1015 ;;
3fbc0b70 1016 *-*-rtems*)
2909494b 1017 noconfigdirs="$noconfigdirs target-libgloss"
74ae587e
JBG		 1018 # this is not caught below because this stanza matches earlier
1019 case $target in
1020 or1k*-*-*) noconfigdirs="$noconfigdirs gdb" ;;
1021 esac
3fbc0b70 1022 ;;
a8ba31f2
EC		 1023 # The tpf target doesn't support gdb yet.
1024 *-*-tpf*)
6a789d5e 1025 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
a8ba31f2 1026 ;;
5785c0ed 1027 *-*-uclinux*)
6a789d5e 1028 noconfigdirs="$noconfigdirs target-rda"
5785c0ed 1029 ;;
6599da04 1030 *-*-vxworks*)
6599da04 1031 ;;
b104e095 1032 alpha*-dec-osf*)
603606e7 1033 # ld works, but does not support shared libraries.
6599da04 1034 # gas doesn't generate exception information.
6a789d5e 1035 noconfigdirs="$noconfigdirs gas ld"
6599da04
JM		 1036 ;;
1037 alpha*-*-*vms*)
2909494b 1038 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
6599da04
JM		 1039 ;;
1040 alpha*-*-*)
1041 # newlib is not 64 bit ready
2909494b 1042 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1043 ;;
3a685f6f 1044 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
b4f96efe 1045 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
3a685f6f 1046 ;;
53426f6c 1047 arc-*-*|arceb-*-*)
ebb9f8b0 1048 noconfigdirs="$noconfigdirs target-libgloss"
d207ebef 1049 ;;
6599da04 1050 arm-*-pe*)
2909494b 1051 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1052 ;;
5d4a5ee6 1053 arm-*-riscix*)
0036370f 1054 noconfigdirs="$noconfigdirs ld target-libgloss"
5d4a5ee6 1055 ;;
b588ae30
GJL		 1056 avr-*-rtems*)
1057 ;;
1058 avr-*-*)
1059 if test x${with_avrlibc} != xno; then
1060 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1061 fi
1062 ;;
a5a438f5 1063 c4x-*-* | tic4x-*-*)
0036370f 1064 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1065 ;;
0036370f
JM		 1066 tic54x-*-*)
1067 noconfigdirs="$noconfigdirs target-libgloss gdb"
ab50d72b 1068 ;;
6599da04 1069 d10v-*-*)
0036370f 1070 noconfigdirs="$noconfigdirs target-libgloss"
d207ebef
JM		 1071 ;;
1072 d30v-*-*)
0036370f 1073 noconfigdirs="$noconfigdirs gdb"
6599da04 1074 ;;
09b5f8bf 1075 fr30-*-elf*)
2909494b 1076 noconfigdirs="$noconfigdirs gdb"
09b5f8bf 1077 ;;
55f2d967 1078 moxie-*-*)
55f2d967
AG		 1079 noconfigdirs="$noconfigdirs gprof"
1080 ;;
ab50d72b 1081 h8300*-*-*)
2909494b 1082 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1083 ;;
6599da04 1084 h8500-*-*)
0036370f 1085 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1086 ;;
9d069a4f 1087 hppa1.1-*-osf* | hppa1.1-*-bsd* )
9d069a4f 1088 ;;
4569f85e 1089 hppa*64*-*-linux*)
cdbff0ab 1090 ;;
56f8587a 1091 hppa*-*-linux*)
3e732ba0 1092 ;;
6599da04 1093 hppa*-*-*elf* | \
bae29210 1094 hppa*-*-lites* | \
66350331 1095 hppa*-*-openbsd* | \
bae29210 1096 hppa*64*-*-*)
6599da04 1097 ;;
2a332582 1098 hppa*-hp-hpux11*)
1bcce263 1099 noconfigdirs="$noconfigdirs ld"
2a332582 1100 ;;
c03353e2 1101 hppa*-*-pro*)
c03353e2 1102 ;;
6599da04 1103 hppa*-*-*)
2909494b 1104 noconfigdirs="$noconfigdirs ld"
d207ebef 1105 ;;
fb87ad5d 1106 i960-*-*)
0036370f 1107 noconfigdirs="$noconfigdirs gdb"
fb87ad5d 1108 ;;
d207ebef
JM		 1109 ia64*-*-elf*)
1110 # No gdb support yet.
1bcce263 1111 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
d207ebef 1112 ;;
ab50d72b 1113 ia64*-**-hpux*)
5a2931d1 1114 # No ld support yet.
2909494b 1115 noconfigdirs="$noconfigdirs libgui itcl ld"
ab50d72b 1116 ;;
52535a64 1117 ia64*-*-*vms*)
091fe9ca
TG		 1118 # No ld support yet.
1119 noconfigdirs="$noconfigdirs libgui itcl ld"
52535a64 1120 ;;
ef4c4300 1121 i[[3456789]]86-w64-mingw*)
ef4c4300
KT		 1122 ;;
1123 i[[3456789]]86-*-mingw*)
b91f0a41 1124 target_configdirs="$target_configdirs target-winsup"
5d571eaa 1125 ;;
d207ebef
JM		 1126 *-*-cygwin*)
1127 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1bcce263 1128 noconfigdirs="$noconfigdirs target-libgloss"
801e2270 1129 # always build newlib if winsup directory is present.
b91f0a41 1130 if test -d "$srcdir/winsup/cygwin"; then
801e2270 1131 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
c8e6cd41 1132 elif test -d "$srcdir/newlib"; then
b91f0a41 1133 echo "Warning: winsup/cygwin is missing so newlib can't be built."
801e2270 1134 fi
5d571eaa 1135 ;;
f2a0e225 1136 i[[3456789]]86-*-pe)
ebb9f8b0 1137 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1138 ;;
f2a0e225 1139 i[[3456789]]86-*-sco3.2v5*)
6599da04
JM		 1140 # The linker does not yet know about weak symbols in COFF,
1141 # and is not configured to handle mixed ELF and COFF.
0036370f 1142 noconfigdirs="$noconfigdirs ld target-libgloss"
6599da04 1143 ;;
f2a0e225 1144 i[[3456789]]86-*-sco*)
0036370f 1145 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1146 ;;
fbdd5d87 1147 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
7c01b2b5 1148 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1149 ;;
f2a0e225 1150 i[[3456789]]86-*-sysv4*)
0036370f 1151 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1152 ;;
f2a0e225 1153 i[[3456789]]86-*-beos*)
6a789d5e 1154 noconfigdirs="$noconfigdirs gdb"
3aa83176 1155 ;;
d1f8db0c 1156 i[[3456789]]86-*-rdos*)
6a789d5e 1157 noconfigdirs="$noconfigdirs gdb"
c03353e2 1158 ;;
d344dce9 1159 mmix-*-*)
2909494b 1160 noconfigdirs="$noconfigdirs gdb"
d344dce9 1161 ;;
ab34901f 1162 mt-*-*)
79dd769c
AH		 1163 noconfigdirs="$noconfigdirs sim"
1164 ;;
6599da04
JM		 1165 powerpc-*-aix*)
1166 # copied from rs6000-*-* entry
6a789d5e 1167 noconfigdirs="$noconfigdirs gprof"
6599da04 1168 ;;
4569f85e 1169 powerpc*-*-winnt* | powerpc*-*-pe*)
6599da04 1170 target_configdirs="$target_configdirs target-winsup"
0036370f 1171 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
6599da04
JM		 1172 # always build newlib.
1173 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1174 ;;
1175 # This is temporary until we can link against shared libraries
1176 powerpcle-*-solaris*)
0036370f 1177 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
6599da04 1178 ;;
0da3b5a7 1179 powerpc-*-beos*)
6a789d5e 1180 noconfigdirs="$noconfigdirs gdb"
d207ebef 1181 ;;
6599da04 1182 rs6000-*-lynxos*)
6a789d5e 1183 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1184 ;;
1185 rs6000-*-aix*)
6a789d5e 1186 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1187 ;;
1188 rs6000-*-*)
2909494b 1189 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1190 ;;
1191 m68k-apollo-*)
0036370f 1192 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
6599da04 1193 ;;
ca9fe997 1194 microblaze*)
2909494b 1195 noconfigdirs="$noconfigdirs gprof"
ca9fe997 1196 ;;
74ae587e 1197 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
d9dced13
RS		 1198 if test x$with_newlib = xyes; then
1199 noconfigdirs="$noconfigdirs gprof"
1200 fi
d9dced13 1201 ;;
6599da04 1202 mips*-*-irix5*)
0036370f 1203 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04
JM		 1204 ;;
1205 mips*-*-irix6*)
2909494b 1206 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1207 ;;
6599da04 1208 mips*-*-bsd*)
bc98bcc4 1209 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
6599da04 1210 ;;
9bec4bf0 1211 mips*-*-linux*)
9bec4bf0 1212 ;;
bc98bcc4
JBG		 1213 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1214 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1215 noconfigdirs="$noconfigdirs ld gas gprof"
1216 ;;
6599da04 1217 mips*-*-*)
2909494b 1218 noconfigdirs="$noconfigdirs gprof"
6599da04 1219 ;;
74ae587e
JBG		 1220 nds32*-*-*)
1221 noconfigdirs="$noconfigdirs gdb"
1222 ;;
738f2522
BS		 1223 nvptx*-*-*)
1224 # nvptx is just a compiler
1225 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1226 ;;
74ae587e
JBG		 1227 or1k*-*-*)
1228 noconfigdirs="$noconfigdirs gdb"
1229 ;;
669f01d8 1230 sh-*-* | sh64-*-*)
ea2002ba
CB		 1231 case "${target}" in
1232 sh*-*-elf)
2909494b 1233 ;;
ea2002ba 1234 *)
2909494b 1235 noconfigdirs="$noconfigdirs target-libgloss" ;;
ea2002ba 1236 esac
6599da04
JM		 1237 ;;
1238 sparc-*-sunos4*)
6a789d5e 1239 if test x${is_cross_compiler} = xno ; then
6599da04
JM		 1240 use_gnu_ld=no
1241 fi
1242 ;;
b42f0d7e 1243 tic6x-*-*)
0d557ff8 1244 noconfigdirs="$noconfigdirs sim"
b42f0d7e 1245 ;;
341c653c 1246 tilepro*-*-* | tilegx*-*-*)
db1d217c
WL		 1247 noconfigdirs="$noconfigdirs sim"
1248 ;;
6599da04 1249 v810-*-*)
0036370f 1250 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
6599da04
JM		 1251 ;;
1252 vax-*-*)
2909494b 1253 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1254 ;;
6599da04
JM		 1255esac
1256
6599da04
JM		 1257# If we aren't building newlib, then don't build libgloss, since libgloss
1258# depends upon some newlib header files.
1259case "${noconfigdirs}" in
1260 *target-libgloss*) ;;
1261 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
55380b08 1262esac
6599da04 1263
55380b08 1264# Work in distributions that contain no compiler tools, like Autoconf.
671aa708 1265host_makefile_frag=/dev/null
55380b08
NN		 1266if test -d ${srcdir}/config ; then
1267case "${host}" in
f2a0e225 1268 i[[3456789]]86-*-msdosdjgpp*)
55380b08
NN		 1269 host_makefile_frag="config/mh-djgpp"
1270 ;;
1271 *-cygwin*)
2a79c47f 1272 ACX_CHECK_CYGWIN_CAT_WORKS
55380b08
NN		 1273 host_makefile_frag="config/mh-cygwin"
1274 ;;
c53a18d3 1275 *-mingw*)
1f5a6b84 1276 host_makefile_frag="config/mh-mingw"
738a52d3 1277 ;;
7b7f941a
UB		 1278 alpha*-*-linux*)
1279 host_makefile_frag="config/mh-alpha-linux"
1280 ;;
00afcaa0 1281 hppa*-hp-hpux10*)
00afcaa0 1282 host_makefile_frag="config/mh-pa-hpux10"
55380b08 1283 ;;
111eeb6e 1284 hppa*-hp-hpux*)
00afcaa0
PB		 1285 host_makefile_frag="config/mh-pa"
1286 ;;
1287 hppa*-*)
1288 host_makefile_frag="config/mh-pa"
1289 ;;
d8ed14ce
IS		 1290 *-*-darwin*)
1291 host_makefile_frag="config/mh-darwin"
be8fff81 1292 ;;
d19bca38
PB		 1293 powerpc-*-aix*)
1294 host_makefile_frag="config/mh-ppc-aix"
1295 ;;
1296 rs6000-*-aix*)
1297 host_makefile_frag="config/mh-ppc-aix"
1298 ;;
55380b08
NN		 1299esac
1300fi
1301
e4c9c075 1302if test "${build}" != "${host}" ; then
0999159b
PB		 1303 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1304 AS_FOR_BUILD=${AS_FOR_BUILD-as}
e4c9c075 1305 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
0999159b
PB		 1306 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1307 GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
1308 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
632e2a07 1309 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
0999159b
PB		 1310 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1311 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1312 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1313 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1314 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1315 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
e4c9c075 1316else
0999159b
PB		 1317 AR_FOR_BUILD="\$(AR)"
1318 AS_FOR_BUILD="\$(AS)"
e4c9c075 1319 CC_FOR_BUILD="\$(CC)"
0999159b
PB		 1320 CXX_FOR_BUILD="\$(CXX)"
1321 GCJ_FOR_BUILD="\$(GCJ)"
1322 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
632e2a07 1323 GOC_FOR_BUILD="\$(GOC)"
0999159b
PB		 1324 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1325 LD_FOR_BUILD="\$(LD)"
1326 NM_FOR_BUILD="\$(NM)"
1327 RANLIB_FOR_BUILD="\$(RANLIB)"
1328 WINDRES_FOR_BUILD="\$(WINDRES)"
1329 WINDMC_FOR_BUILD="\$(WINDMC)"
c3a86da9 1330fi
e4c9c075 1331
c3a86da9
DJ		 1332AC_PROG_CC
1333AC_PROG_CXX
1334
1335# We must set the default linker to the linker used by gcc for the correct
1336# operation of libtool. If LD is not defined and we are using gcc, try to
1337# set the LD default to the ld used by gcc.
1338if test -z "$LD"; then
1339 if test "$GCC" = yes; then
1340 case $build in
1341 *-*-mingw*)
1342 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1343 *)
1344 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1345 esac
1346 case $gcc_prog_ld in
1347 # Accept absolute paths.
1348 [[\\/]* | [A-Za-z]:[\\/]*)]
1349 LD="$gcc_prog_ld" ;;
1350 esac
1351 fi
e4c9c075
PB		 1352fi
1353
0b21f5d3
EB		 1354# Check whether -static-libstdc++ -static-libgcc is supported.
1355have_static_libs=no
1356if test "$GCC" = yes; then
1357 saved_LDFLAGS="$LDFLAGS"
1358
1359 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1360 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1361 AC_LANG_PUSH(C++)
0d6414b2
EB		 1362 AC_LINK_IFELSE([
1363#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1364#error -static-libstdc++ not implemented
1365#endif
1366int main() {}],
0b21f5d3
EB		 1367 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1368 [AC_MSG_RESULT([no])])
1369 AC_LANG_POP(C++)
1370
1371 LDFLAGS="$saved_LDFLAGS"
1372fi
1373
e4c9c075 1374ACX_PROG_GNAT
a76494aa 1375ACX_PROG_CMP_IGNORE_INITIAL
e4c9c075 1376
ff3ac0f4
ILT		 1377AC_ARG_ENABLE([bootstrap],
1378[AS_HELP_STRING([--enable-bootstrap],
1379 [enable bootstrapping @<:@yes if native build@:>@])],,
1380enable_bootstrap=default)
1381
1382# Issue errors and warnings for invalid/strange bootstrap combinations.
bf03b9ff
ILT		 1383if test -r $srcdir/gcc/configure; then
1384 have_compiler=yes
1385else
1386 have_compiler=no
1387fi
ff3ac0f4
ILT		 1388
1389case "$have_compiler:$host:$target:$enable_bootstrap" in
1390 *:*:*:no) ;;
1391
1392 # Default behavior. Enable bootstrap if we have a compiler
1393 # and we are in a native configuration.
1394 yes:$build:$build:default)
1395 enable_bootstrap=yes ;;
1396
1397 *:*:*:default)
1398 enable_bootstrap=no ;;
1399
1400 # We have a compiler and we are in a native configuration, bootstrap is ok
1401 yes:$build:$build:yes)
1402 ;;
1403
1404 # Other configurations, but we have a compiler. Assume the user knows
1405 # what he's doing.
1406 yes:*:*:yes)
1407 AC_MSG_WARN([trying to bootstrap a cross compiler])
1408 ;;
1409
1410 # No compiler: if they passed --enable-bootstrap explicitly, fail
1411 no:*:*:yes)
1412 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1413
1414 # Fail if wrong command line
1415 *)
1416 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1417 ;;
1418esac
1419
592c90ff
KG		 1420# Used for setting $lt_cv_objdir
1421_LT_CHECK_OBJDIR
1422
acd26225 1423# Check for GMP, MPFR and MPC
3a5729ea 1424gmplibs="-lmpc -lmpfr -lgmp"
6de9cd9a 1425gmpinc=
e69bf64b 1426have_gmp=no
acd26225
KG		 1427
1428# Specify a location for mpc
1429# check for this first so it ends up on the link line before mpfr.
33e39b66
AS		 1430AC_ARG_WITH(mpc,
1431[AS_HELP_STRING([--with-mpc=PATH],
1432 [specify prefix directory for installed MPC package.
1433 Equivalent to --with-mpc-include=PATH/include
1434 plus --with-mpc-lib=PATH/lib])])
1435AC_ARG_WITH(mpc-include,
1436[AS_HELP_STRING([--with-mpc-include=PATH],
1437 [specify directory for installed MPC include files])])
1438AC_ARG_WITH(mpc-lib,
1439[AS_HELP_STRING([--with-mpc-lib=PATH],
1440 [specify directory for the installed MPC library])])
acd26225
KG		 1441
1442if test "x$with_mpc" != x; then
3a5729ea
KG		 1443 gmplibs="-L$with_mpc/lib $gmplibs"
1444 gmpinc="-I$with_mpc/include $gmpinc"
acd26225
KG		 1445fi
1446if test "x$with_mpc_include" != x; then
3a5729ea 1447 gmpinc="-I$with_mpc_include $gmpinc"
acd26225
KG		 1448fi
1449if test "x$with_mpc_lib" != x; then
3a5729ea 1450 gmplibs="-L$with_mpc_lib $gmplibs"
acd26225
KG		 1451fi
1452if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
592c90ff 1453 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
3a5729ea 1454 gmpinc='-I$$s/mpc/src '"$gmpinc"
acd26225
KG		 1455 # Do not test the mpc version. Assume that it is sufficient, since
1456 # it is in the source tree, and the library has not been built yet
1457 # but it would be included on the link line in the version check below
1458 # hence making the test fail.
3a5729ea 1459 have_gmp=yes
acd26225 1460fi
e69bf64b 1461
bebf829d
PB		 1462# Specify a location for mpfr
1463# check for this first so it ends up on the link line before gmp.
33e39b66
AS		 1464AC_ARG_WITH(mpfr-dir,
1465[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1466[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1467Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1468
1469AC_ARG_WITH(mpfr,
1470[AS_HELP_STRING([--with-mpfr=PATH],
1471 [specify prefix directory for installed MPFR package.
1472 Equivalent to --with-mpfr-include=PATH/include
1473 plus --with-mpfr-lib=PATH/lib])])
1474AC_ARG_WITH(mpfr-include,
1475[AS_HELP_STRING([--with-mpfr-include=PATH],
1476 [specify directory for installed MPFR include files])])
1477AC_ARG_WITH(mpfr-lib,
1478[AS_HELP_STRING([--with-mpfr-lib=PATH],
1479 [specify directory for the installed MPFR library])])
bebf829d
PB		 1480
1481if test "x$with_mpfr" != x; then
1482 gmplibs="-L$with_mpfr/lib $gmplibs"
3a5729ea 1483 gmpinc="-I$with_mpfr/include $gmpinc"
bebf829d 1484fi
8a877c9c 1485if test "x$with_mpfr_include" != x; then
3a5729ea 1486 gmpinc="-I$with_mpfr_include $gmpinc"
8a877c9c
KG		 1487fi
1488if test "x$with_mpfr_lib" != x; then
1489 gmplibs="-L$with_mpfr_lib $gmplibs"
1490fi
e69bf64b 1491if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
5b0d38e4
NC		 1492 # MPFR v3.1.0 moved the sources into a src sub-directory.
1493 if test -d ${srcdir}/mpfr/src; then
1494 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1495 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1496 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
1497 else
1498 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir $gmplibs"
1499 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1500 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir"
1501 fi
e69bf64b
PB		 1502 # Do not test the mpfr version. Assume that it is sufficient, since
1503 # it is in the source tree, and the library has not been built yet
1504 # but it would be included on the link line in the version check below
1505 # hence making the test fail.
1506 have_gmp=yes
1507fi
bebf829d 1508
6de9cd9a 1509# Specify a location for gmp
33e39b66
AS		 1510AC_ARG_WITH(gmp-dir,
1511[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1512[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1513Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1514
1515AC_ARG_WITH(gmp,
1516[AS_HELP_STRING([--with-gmp=PATH],
1517 [specify prefix directory for the installed GMP package.
1518 Equivalent to --with-gmp-include=PATH/include
1519 plus --with-gmp-lib=PATH/lib])])
1520AC_ARG_WITH(gmp-include,
1521[AS_HELP_STRING([--with-gmp-include=PATH],
1522 [specify directory for installed GMP include files])])
1523AC_ARG_WITH(gmp-lib,
1524[AS_HELP_STRING([--with-gmp-lib=PATH],
1525 [specify directory for the installed GMP library])])
6de9cd9a 1526
6de9cd9a 1527
bebf829d
PB		 1528if test "x$with_gmp" != x; then
1529 gmplibs="-L$with_gmp/lib $gmplibs"
1530 gmpinc="-I$with_gmp/include $gmpinc"
6de9cd9a 1531fi
8a877c9c
KG		 1532if test "x$with_gmp_include" != x; then
1533 gmpinc="-I$with_gmp_include $gmpinc"
1534fi
1535if test "x$with_gmp_lib" != x; then
1536 gmplibs="-L$with_gmp_lib $gmplibs"
1537fi
e69bf64b 1538if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
592c90ff 1539 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
e69bf64b 1540 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
9183bdcf 1541 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
592c90ff 1542 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
0ff2d841 1543 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
e69bf64b
PB		 1544 # Do not test the gmp 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
6de9cd9a 1550
d943d7c4 1551if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
e69bf64b
PB		 1552 have_gmp=yes
1553 saved_CFLAGS="$CFLAGS"
1554 CFLAGS="$CFLAGS $gmpinc"
362c6d2f
KG		 1555 # Check for the recommended and required versions of GMP.
1556 AC_MSG_CHECKING([for the correct version of gmp.h])
e69bf64b 1557 AC_TRY_COMPILE([#include "gmp.h"],[
362c6d2f
KG		 1558 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1559 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
385c0681 1560 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
e48d66a9 1561 choke me
e69bf64b 1562 #endif
e8fd69bb 1563 ], [AC_TRY_COMPILE([#include <gmp.h>],[
362c6d2f
KG		 1564 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1565 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1566 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1567 choke me
1568 #endif
e8fd69bb 1569 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1570 [AC_MSG_RESULT([no]); have_gmp=no])
e69bf64b 1571
acd26225 1572 # If we have GMP, check the MPFR version.
e69bf64b 1573 if test x"$have_gmp" = xyes; then
362c6d2f
KG		 1574 # Check for the recommended and required versions of MPFR.
1575 AC_MSG_CHECKING([for the correct version of mpfr.h])
acd26225 1576 AC_TRY_COMPILE([#include <gmp.h>
e69bf64b 1577 #include <mpfr.h>],[
f7d6bc01 1578 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
e69bf64b
PB		 1579 choke me
1580 #endif
e8fd69bb 1581 ], [AC_TRY_COMPILE([#include <gmp.h>
acd26225 1582 #include <mpfr.h>],[
362c6d2f 1583 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
acd26225
KG		 1584 choke me
1585 #endif
e8fd69bb 1586 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
acd26225
KG		 1587 [AC_MSG_RESULT([no]); have_gmp=no])
1588 fi
1589
1590 # Check for the MPC header version.
3a5729ea 1591 if test x"$have_gmp" = xyes ; then
362c6d2f 1592 # Check for the recommended and required versions of MPC.
acd26225
KG		 1593 AC_MSG_CHECKING([for the correct version of mpc.h])
1594 AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f 1595 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
acd26225
KG		 1596 choke me
1597 #endif
e8fd69bb 1598 ], [AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f
KG		 1599 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1600 choke me
1601 #endif
e8fd69bb 1602 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1603 [AC_MSG_RESULT([no]); have_gmp=no])
acd26225
KG		 1604 fi
1605
1606 # Now check the MPFR library.
1607 if test x"$have_gmp" = xyes; then
1608 saved_LIBS="$LIBS"
1609 LIBS="$LIBS $gmplibs"
3a5729ea
KG		 1610 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1611 AC_TRY_LINK([#include <mpc.h>],[
54e433bc
MK		 1612 mpfr_t n;
1613 mpfr_t x;
3a5729ea 1614 mpc_t c;
e69bf64b 1615 int t;
54e433bc
MK		 1616 mpfr_init (n);
1617 mpfr_init (x);
e69bf64b
PB		 1618 mpfr_atan2 (n, n, x, GMP_RNDN);
1619 mpfr_erfc (n, x, GMP_RNDN);
1620 mpfr_subnormalize (x, t, GMP_RNDN);
3a5729ea
KG		 1621 mpfr_clear(n);
1622 mpfr_clear(x);
1623 mpc_init2 (c, 53);
1624 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1625 mpc_cosh (c, c, MPC_RNDNN);
1626 mpc_pow (c, c, c, MPC_RNDNN);
1627 mpc_acosh (c, c, MPC_RNDNN);
1628 mpc_clear (c);
acd26225
KG		 1629 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1630 LIBS="$saved_LIBS"
e69bf64b 1631 fi
acd26225 1632
e69bf64b 1633 CFLAGS="$saved_CFLAGS"
6de9cd9a 1634
362c6d2f
KG		 1635# The library versions listed in the error message below should match
1636# the HARD-minimums enforced above.
e69bf64b 1637 if test x$have_gmp != xyes; then
f7d6bc01 1638 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
3a5729ea
KG		 1639Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1640their locations. Source code for these libraries can be found at
1641their respective hosting sites as well as at
1642ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1643http://gcc.gnu.org/install/prerequisites.html for additional info. If
1644you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1645make sure that you have installed both the libraries and the header
1646files. They may be located in separate packages.])
e69bf64b 1647 fi
70ec446f
KG		 1648fi
1649
acd26225 1650# Flags needed for both GMP, MPFR and/or MPC.
6de9cd9a
DN		 1651AC_SUBST(gmplibs)
1652AC_SUBST(gmpinc)
9e3eba15 1653AC_SUBST(extra_mpfr_configure_flags)
acd26225
KG		 1654AC_SUBST(extra_mpc_gmp_configure_flags)
1655AC_SUBST(extra_mpc_mpfr_configure_flags)
0ff2d841 1656AC_SUBST(extra_isl_gmp_configure_flags)
6de9cd9a 1657
f38095f3 1658# Allow host libstdc++ to be specified for static linking with PPL.
33e39b66
AS		 1659AC_ARG_WITH(host-libstdcxx,
1660[AS_HELP_STRING([--with-host-libstdcxx=L],
1661 [use linker arguments L to link with libstdc++
1662 when linking with PPL])])
f38095f3
JM		 1663
1664case $with_host_libstdcxx in
1665 no|yes)
1666 AC_MSG_ERROR([-with-host-libstdcxx needs an argument])
1667 ;;
1668esac
f8bf9252 1669
00020c16
ILT		 1670# Libraries to use for stage1 or when not bootstrapping.
1671AC_ARG_WITH(stage1-libs,
33e39b66 1672[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
00020c16
ILT		 1673[if test "$withval" = "no" -o "$withval" = "yes"; then
1674 stage1_libs=
1675 else
1676 stage1_libs=$withval
1677 fi],
1678[stage1_libs=$with_host_libstdcxx])
1679AC_SUBST(stage1_libs)
1680
0b21f5d3
EB		 1681# Linker flags to use for stage1 or when not bootstrapping.
1682AC_ARG_WITH(stage1-ldflags,
1683[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1684[if test "$withval" = "no" -o "$withval" = "yes"; then
1685 stage1_ldflags=
1686 else
1687 stage1_ldflags=$withval
1688 fi],
1689[stage1_ldflags=
1690 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1691 # if supported. But if the user explicitly specified the libraries to use,
1692 # trust that they are doing what they want.
1693 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1694 stage1_ldflags="-static-libstdc++ -static-libgcc"
1695 fi])
1696AC_SUBST(stage1_ldflags)
1697
00020c16
ILT		 1698# Libraries to use for stage2 and later builds. This defaults to the
1699# argument passed to --with-host-libstdcxx.
1700AC_ARG_WITH(boot-libs,
33e39b66 1701[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
00020c16
ILT		 1702[if test "$withval" = "no" -o "$withval" = "yes"; then
1703 poststage1_libs=
1704 else
e90e6bd7 1705 poststage1_libs=$withval
00020c16
ILT		 1706 fi],
1707[poststage1_libs=$with_host_libstdcxx])
1708AC_SUBST(poststage1_libs)
1709
ed2eaa9f
ILT		 1710# Linker flags to use for stage2 and later builds.
1711AC_ARG_WITH(boot-ldflags,
33e39b66
AS		 1712[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1713 [linker flags for stage2 and later])],
ed2eaa9f
ILT		 1714[if test "$withval" = "no" -o "$withval" = "yes"; then
1715 poststage1_ldflags=
1716 else
1717 poststage1_ldflags=$withval
1718 fi],
1719[poststage1_ldflags=
bec93d73
ILT		 1720 # In stages 2 and 3, default to linking libstdc++ and libgcc
1721 # statically. But if the user explicitly specified the libraries to
1722 # use, trust that they are doing what they want.
1723 if test "$poststage1_libs" = ""; then
ed2eaa9f
ILT		 1724 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1725 fi])
1726AC_SUBST(poststage1_ldflags)
1727
4a9bb2aa
TB		 1728# GCC GRAPHITE dependency ISL.
1729# Basic setup is inlined here, actual checks are in config/isl.m4
625afa23 1730
625afa23
RG		 1731AC_ARG_WITH(isl,
1732 [AS_HELP_STRING(
1733 [--with-isl=PATH],
1734 [Specify prefix directory for the installed ISL package.
1735 Equivalent to --with-isl-include=PATH/include
1736 plus --with-isl-lib=PATH/lib])])
1737
eae1a5d4 1738# Treat --without-isl as a request to disable
625afa23 1739# GRAPHITE support and skip all following checks.
eae1a5d4 1740if test "x$with_isl" != "xno"; then
625afa23
RG		 1741 # Check for ISL
1742 dnl Provide configure switches and initialize islinc & isllibs
1743 dnl with user input.
1744 ISL_INIT_FLAGS
d0ad394c 1745 dnl The versions of ISL that work for Graphite
e0c0c325 1746 ISL_CHECK_VERSION()
33ad93b9
RG		 1747 dnl Only execute fail-action, if ISL has been requested.
1748 ISL_IF_FAILED([
1749 AC_MSG_ERROR([Unable to find a usable ISL. See config.log for details.])])
f8bf9252 1750fi
f8bf9252 1751
4a9bb2aa 1752# If the ISL check failed, disable builds of in-tree variant of ISL
625afa23 1753if test "x$with_isl" = xno ||
625afa23 1754 test "x$gcc_cv_isl" = xno; then
4a9bb2aa 1755 noconfigdirs="$noconfigdirs isl"
625afa23 1756 islinc=
eae1a5d4
RG		 1757fi
1758
1759AC_SUBST(isllibs)
625afa23 1760AC_SUBST(islinc)
625afa23 1761
d7f09764
DN		 1762# Check for LTO support.
1763AC_ARG_ENABLE(lto,
33e39b66 1764[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
d7f09764
DN		 1765enable_lto=$enableval,
1766enable_lto=yes; default_enable_lto=yes)
1767
48215350
DK		 1768ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1769 build_lto_plugin=yes
1770],[if test x"$default_enable_lto" = x"yes" ; then
bb79486c 1771 case $target in
2cd815e7 1772 *-apple-darwin9* | *-cygwin* | *-mingw*) ;;
48215350 1773 # On other non-ELF platforms, LTO has yet to be validated.
bb79486c
JH		 1774 *) enable_lto=no ;;
1775 esac
3bec79c5 1776 else
db50fe7d
IS		 1777 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1778 # It would also be nice to check the binutils support, but we don't
3bec79c5
DK		 1779 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1780 # warn during gcc/ subconfigure; unless you're bootstrapping with
1781 # -flto it won't be needed until after installation anyway.
1782 case $target in
1cd0b716 1783 *-cygwin* | *-mingw* | *-apple-darwin*) ;;
3bec79c5
DK		 1784 *) if test x"$enable_lto" = x"yes"; then
1785 AC_MSG_ERROR([LTO support is not enabled for this target.])
1786 fi
1787 ;;
1788 esac
1789 fi
1cd0b716 1790 # Among non-ELF, only Windows platforms support the lto-plugin so far.
48215350 1791 # Build it unless LTO was explicitly disabled.
1cd0b716 1792 case $target in
48215350 1793 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1cd0b716
DK		 1794 *) ;;
1795 esac
48215350 1796])
d7f09764 1797
45b3824d
TS		 1798AC_ARG_ENABLE(linker-plugin-configure-flags,
1799 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1800 [additional flags for configuring linker plugins @<:@none@:>@])],
1801 extra_linker_plugin_configure_flags=$enableval,
1802 extra_linker_plugin_configure_flags=)
1803AC_SUBST(extra_linker_plugin_configure_flags)
1804AC_ARG_ENABLE(linker-plugin-flags,
1805 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1806 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1807 extra_linker_plugin_flags=$enableval,
1808 extra_linker_plugin_flags=)
1809AC_SUBST(extra_linker_plugin_flags)
1810
f8bf9252 1811
0823efed 1812# By default, C and C++ are the only stage 1 languages.
e1888513 1813stage1_languages=,c,
2805b53a 1814
00020c16 1815# Target libraries that we bootstrap.
ad1e5170 1816bootstrap_target_libs=,target-libgcc,
00020c16 1817
e4c9c075
PB		 1818# Figure out what language subdirectories are present.
1819# Look if the user specified --enable-languages="..."; if not, use
1820# the environment variable $LANGUAGES if defined. $LANGUAGES might
1821# go away some day.
1822# NB: embedded tabs in this IF block -- do not untabify
1823if test -d ${srcdir}/gcc; then
1824 if test x"${enable_languages+set}" != xset; then
1825 if test x"${LANGUAGES+set}" = xset; then
1826 enable_languages="${LANGUAGES}"
1827 echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1828 else
1829 enable_languages=all
1830 fi
1831 else
1832 if test x"${enable_languages}" = x ||
1833 test x"${enable_languages}" = xyes;
1834 then
1835 echo configure.in: --enable-languages needs at least one language argument 1>&2
1836 exit 1
1837 fi
1838 fi
1839 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1840
7f26dfa3
FXC		 1841 # 'f95' is the old name for the 'fortran' language. We issue a warning
1842 # and make the substitution.
1843 case ,${enable_languages}, in
1844 *,f95,*)
1845 echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1846 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1847 ;;
1848 esac
1849
0823efed
DN		 1850 # If bootstrapping, C++ must be enabled.
1851 case ",$enable_languages,:$enable_bootstrap" in
1852 *,c++,*:*) ;;
1853 *:yes)
ff3ac0f4
ILT		 1854 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1855 enable_languages="${enable_languages},c++"
1856 else
0823efed 1857 AC_MSG_ERROR([bootstrapping requires c++ sources])
ff3ac0f4
ILT		 1858 fi
1859 ;;
1860 esac
1861
e4c9c075
PB		 1862 # First scan to see if an enabled language requires some other language.
1863 # We assume that a given config-lang.in will list all the language
1864 # front ends it requires, even if some are required indirectly.
1865 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1866 case ${lang_frag} in
1867 ..) ;;
1868 # The odd quoting in the next line works around
1869 # an apparent bug in bash 1.12 on linux.
1870 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1871 *)
69ecd18f
ILT		 1872 # From the config-lang.in, get $language, $lang_requires, and
1873 # $lang_requires_boot_languages.
e4c9c075
PB		 1874 language=
1875 lang_requires=
69ecd18f 1876 lang_requires_boot_languages=
e4c9c075 1877 . ${lang_frag}
69ecd18f 1878 for other in ${lang_requires} ${lang_requires_boot_languages}; do
e4c9c075
PB		 1879 case ,${enable_languages}, in
1880 *,$other,*) ;;
1881 *,all,*) ;;
1882 *,$language,*)
1883 echo " \`$other' language required by \`$language'; enabling" 1>&2
1884 enable_languages="${enable_languages},${other}"
1885 ;;
1886 esac
1887 done
69ecd18f
ILT		 1888 for other in ${lang_requires_boot_languages} ; do
1889 if test "$other" != "c"; then
1890 case ,${enable_stage1_languages}, in
1891 *,$other,*) ;;
1892 *,all,*) ;;
1893 *)
1894 case ,${enable_languages}, in
1895 *,$language,*)
1896 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1897 enable_stage1_languages="$enable_stage1_languages,${other}"
1898 ;;
1899 esac
1900 ;;
1901 esac
1902 fi
1903 done
e4c9c075
PB		 1904 ;;
1905 esac
1906 done
1907
e1888513 1908 new_enable_languages=,c,
d7f09764
DN		 1909
1910 # If LTO is enabled, add the LTO front end.
d7f09764 1911 if test "$enable_lto" = "yes" ; then
e4c5bd48
RW		 1912 case ,${enable_languages}, in
1913 *,lto,*) ;;
1914 *) enable_languages="${enable_languages},lto" ;;
1915 esac
1cd0b716 1916 if test "${build_lto_plugin}" = "yes" ; then
d7f09764 1917 configdirs="$configdirs lto-plugin"
d7f09764
DN		 1918 fi
1919 fi
d7f09764 1920
e4c9c075 1921 missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
e1888513 1922 potential_languages=,c,
e4c9c075 1923
4da3b0f8
ILT		 1924 enabled_target_libs=
1925 disabled_target_libs=
1926
e4c9c075
PB		 1927 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1928 case ${lang_frag} in
1929 ..) ;;
1930 # The odd quoting in the next line works around
1931 # an apparent bug in bash 1.12 on linux.
1932 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1933 *)
1934 # From the config-lang.in, get $language, $target_libs,
2805b53a 1935 # $lang_dirs, $boot_language, and $build_by_default
e4c9c075
PB		 1936 language=
1937 target_libs=
1938 lang_dirs=
1546bb64 1939 subdir_requires=
e1888513
PB		 1940 boot_language=no
1941 build_by_default=yes
e4c9c075 1942 . ${lang_frag}
e1888513
PB		 1943 if test x${language} = x; then
1944 echo "${lang_frag} doesn't set \$language." 1>&2
1945 exit 1
1946 fi
1947
78767fd9 1948 if test "$language" = "c++"; then
0823efed 1949 boot_language=yes
00020c16
ILT		 1950 fi
1951
178f875a 1952 add_this_lang=no
e1888513
PB		 1953 case ,${enable_languages}, in
1954 *,${language},*)
d4a10d0a
SB		 1955 # Language was explicitly selected; include it
1956 # unless it is C, which is enabled by default.
1957 if test "$language" != "c"; then
1958 add_this_lang=yes
1959 fi
e4c9c075 1960 ;;
e1888513
PB		 1961 *,all,*)
1962 # 'all' was selected, select it if it is a default language
178f875a
JM		 1963 if test "$language" != "c"; then
1964 add_this_lang=${build_by_default}
1965 fi
e4c9c075
PB		 1966 ;;
1967 esac
6de9cd9a 1968
1546bb64 1969 # Disable languages that need other directories if these aren't available.
95695ad3 1970 for i in $subdir_requires; do
b6348cb3 1971 test -f "$srcdir/gcc/$i/config-lang.in" && continue
1546bb64
PB		 1972 case ,${enable_languages}, in
1973 *,${language},*)
1974 # Specifically requested language; tell them.
1975 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1976 ;;
1977 *)
1978 # Silently disable.
e1888513 1979 add_this_lang=unsupported
1546bb64
PB		 1980 ;;
1981 esac
1982 done
1983
e1888513
PB		 1984 # Disable Ada if no preexisting GNAT is available.
1985 case ,${enable_languages},:${language}:${have_gnat} in
1986 *,${language},*:ada:no)
1987 # Specifically requested language; tell them.
1988 AC_MSG_ERROR([GNAT is required to build $language])
1989 ;;
1990 *:ada:no)
1991 # Silently disable.
1992 add_this_lang=unsupported
1993 ;;
1994 esac
1995
4fab7234
HPN		 1996 # Disable a language that is unsupported by the target.
1997 case " $unsupported_languages " in
1998 *" $language "*)
e1888513 1999 add_this_lang=unsupported
4fab7234
HPN		 2000 ;;
2001 esac
2002
6de9cd9a 2003 case $add_this_lang in
e1888513 2004 unsupported)
e4c9c075 2005 # Remove language-dependent dirs.
4da3b0f8
ILT		 2006 disabled_target_libs="$disabled_target_libs $target_libs"
2007 noconfigdirs="$noconfigdirs $lang_dirs"
2805b53a 2008 ;;
e1888513
PB		 2009 no)
2010 # Remove language-dependent dirs; still show language as supported.
4da3b0f8
ILT		 2011 disabled_target_libs="$disabled_target_libs $target_libs"
2012 noconfigdirs="$noconfigdirs $lang_dirs"
e1888513
PB		 2013 potential_languages="${potential_languages}${language},"
2014 ;;
2015 yes)
2016 new_enable_languages="${new_enable_languages}${language},"
2017 potential_languages="${potential_languages}${language},"
2805b53a 2018 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
4da3b0f8 2019 enabled_target_libs="$enabled_target_libs $target_libs"
ab9dcd0c
RW		 2020 case "${boot_language}:,$enable_stage1_languages," in
2021 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
340de83f 2022 # Add to (comma-separated) list of stage 1 languages.
ab9dcd0c
RW		 2023 case ",$stage1_languages," in
2024 *,$language,* | ,yes, | ,all,) ;;
2025 *) stage1_languages="${stage1_languages}${language}," ;;
2026 esac
00020c16
ILT		 2027 # We need to bootstrap any supporting libraries.
2028 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2805b53a
NN		 2029 ;;
2030 esac
2031 ;;
e4c9c075
PB		 2032 esac
2033 ;;
2034 esac
2035 done
2036
4da3b0f8
ILT		 2037 # Add target libraries which are only needed for disabled languages
2038 # to noconfigdirs.
2039 if test -n "$disabled_target_libs"; then
2040 for dir in $disabled_target_libs; do
2041 case " $enabled_target_libs " in
2042 *" ${dir} "*) ;;
2043 *) noconfigdirs="$noconfigdirs $dir" ;;
2044 esac
2045 done
2046 fi
2047
e1888513 2048 AC_ARG_ENABLE(stage1-languages,
33e39b66
AS		 2049 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2050 [choose additional languages to build during
2051 stage1. Mostly useful for compiler development])],
e1888513
PB		 2052 [case ,${enable_stage1_languages}, in
2053 ,no,|,,)
2054 # Set it to something that will have no effect in the loop below
2055 enable_stage1_languages=c ;;
2056 ,yes,)
2057 enable_stage1_languages=`echo $new_enable_languages | \
2058 sed -e "s/^,//" -e "s/,$//" ` ;;
2059 *,all,*)
2060 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2061 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2062 esac
2063
2064 # Add "good" languages from enable_stage1_languages to stage1_languages,
2065 # while "bad" languages go in missing_languages. Leave no duplicates.
2066 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2067 case $potential_languages in
2068 *,$i,*)
2069 case $stage1_languages in
2070 *,$i,*) ;;
2071 *) stage1_languages="$stage1_languages$i," ;;
2072 esac ;;
2073 *)
2074 case $missing_languages in
2075 *,$i,*) ;;
2076 *) missing_languages="$missing_languages$i," ;;
2077 esac ;;
2078 esac
2079 done])
2080
2081 # Remove leading/trailing commas that were added for simplicity
2082 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
79b4b7d2 2083 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
e1888513
PB		 2084 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2085 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2086
e4c9c075
PB		 2087 if test "x$missing_languages" != x; then
2088 AC_MSG_ERROR([
0cf085e4 2089The following requested languages could not be built: ${missing_languages}
e1888513 2090Supported languages are: ${potential_languages}])
e4c9c075 2091 fi
e4c9c075
PB		 2092 if test "x$new_enable_languages" != "x$enable_languages"; then
2093 echo The following languages will be built: ${new_enable_languages}
e1888513 2094 enable_languages="$new_enable_languages"
e4c9c075 2095 fi
e1888513
PB		 2096
2097 AC_SUBST(stage1_languages)
b2eaac4a 2098 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
e4c9c075
PB		 2099fi
2100
27079765
AH		 2101# Handle --disable-<component> generically.
2102for dir in $configdirs $build_configdirs $target_configdirs ; do
2103 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
ac9e6043
RW		 2104 varname=`echo $dirname | sed -e s/+/_/g`
2105 if eval test x\${enable_${varname}} "=" xno ; then
27079765
AH		 2106 noconfigdirs="$noconfigdirs $dir"
2107 fi
2108done
2109
7cd0cf9c
DA		 2110# Check for Boehm's garbage collector
2111AC_ARG_ENABLE(objc-gc,
33e39b66
AS		 2112[AS_HELP_STRING([--enable-objc-gc],
2113 [enable use of Boehm's garbage collector with the
2114 GNU Objective-C runtime])],
7cd0cf9c
DA		 2115[case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
2116 *,objc,*:*:yes:*target-boehm-gc*)
2117 AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
2118 ;;
2119esac])
2120
2121# Make sure we only build Boehm's garbage collector if required.
2a79fd67
DA		 2122case ,${enable_languages},:${enable_objc_gc} in
2123 *,objc,*:yes)
7cd0cf9c
DA		 2124 # Keep target-boehm-gc if requested for Objective-C.
2125 ;;
7cd0cf9c 2126 *)
2a79fd67
DA		 2127 # Otherwise remove target-boehm-gc depending on target-libjava.
2128 if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
2129 noconfigdirs="$noconfigdirs target-boehm-gc"
2130 fi
7cd0cf9c
DA		 2131 ;;
2132esac
99776ebd 2133
5f520819 2134# Disable libcilkrts, libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
99776ebd 2135case ,${enable_languages}, in
1007a55c
JW		 2136 *,c++,*)
2137 # Disable libcilkrts, libitm, libsanitizer if we're not building libstdc++
2138 case "${noconfigdirs}" in
2139 *target-libstdc++-v3*)
2140 noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer"
2141 ;;
2142 *) ;;
2143 esac
2144 ;;
99776ebd 2145 *)
5f520819 2146 noconfigdirs="$noconfigdirs target-libcilkrts target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
99776ebd
RH		 2147 ;;
2148esac
7cd0cf9c 2149
9d069a4f
PB		 2150# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2151# $build_configdirs and $target_configdirs.
e4c9c075
PB		 2152# If we have the source for $noconfigdirs entries, add them to $notsupp.
2153
2154notsupp=""
2155for dir in . $skipdirs $noconfigdirs ; do
9d069a4f 2156 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
e4c9c075
PB		 2157 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2158 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2159 if test -r $srcdir/$dirname/configure ; then
2160 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2161 true
2162 else
2163 notsupp="$notsupp $dir"
2164 fi
2165 fi
2166 fi
9d069a4f
PB		 2167 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2168 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2169 if test -r $srcdir/$dirname/configure ; then
2170 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2171 true
2172 else
2173 notsupp="$notsupp $dir"
2174 fi
2175 fi
2176 fi
e4c9c075
PB		 2177 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2178 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2179 if test -r $srcdir/$dirname/configure ; then
2180 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2181 true
2182 else
2183 notsupp="$notsupp $dir"
2184 fi
2185 fi
2186 fi
2187done
2188
e4c9c075
PB		 2189# Quietly strip out all directories which aren't configurable in this tree.
2190# This relies on all configurable subdirectories being autoconfiscated, which
2191# is now the case.
23f6b2f9
PB		 2192build_configdirs_all="$build_configdirs"
2193build_configdirs=
2194for i in ${build_configdirs_all} ; do
2195 j=`echo $i | sed -e s/build-//g`
2196 if test -f ${srcdir}/$j/configure ; then
2197 build_configdirs="${build_configdirs} $i"
2198 fi
2199done
2200
e4c9c075
PB		 2201configdirs_all="$configdirs"
2202configdirs=
2203for i in ${configdirs_all} ; do
2204 if test -f ${srcdir}/$i/configure ; then
2205 configdirs="${configdirs} $i"
2206 fi
2207done
23f6b2f9 2208
e4c9c075
PB		 2209target_configdirs_all="$target_configdirs"
2210target_configdirs=
2211for i in ${target_configdirs_all} ; do
2212 j=`echo $i | sed -e s/target-//g`
2213 if test -f ${srcdir}/$j/configure ; then
2214 target_configdirs="${target_configdirs} $i"
2215 fi
2216done
2217
45b3824d
TS		 2218# libiberty-linker-plugin is special: it doesn't have its own source directory,
2219# so we have to add it after the preceding checks.
2220if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2221then
2222 case " $configdirs " in
2223 *" libiberty "*)
2224 # If we can build libiberty, we can also build libiberty-linker-plugin.
2225 configdirs="$configdirs libiberty-linker-plugin"
2226 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2227 --with-libiberty=../libiberty-linker-plugin";;
2228 *)
2229 AC_MSG_ERROR([libiberty missing]);;
2230 esac
2231fi
2232
fca38047
TS		 2233# Sometimes we have special requirements for the host libiberty.
2234extra_host_libiberty_configure_flags=
2235case " $configdirs " in
2236 *" lto-plugin "* | *" libcc1 "*)
2237 # When these are to be built as shared libraries, the same applies to
2238 # libiberty.
2239 extra_host_libiberty_configure_flags=--enable-shared
2240 ;;
2241esac
2242AC_SUBST(extra_host_libiberty_configure_flags)
2243
e4c9c075
PB		 2244# Produce a warning message for the subdirs we can't configure.
2245# This isn't especially interesting in the Cygnus tree, but in the individual
2246# FSF releases, it's important to let people know when their machine isn't
2247# supported by the one or two programs in a package.
2248
2249if test -n "${notsupp}" && test -z "${norecursion}" ; then
2250 # If $appdirs is non-empty, at least one of those directories must still
2251 # be configured, or we error out. (E.g., if the gas release supports a
2252 # specified target in some subdirs but not the gas subdir, we shouldn't
2253 # pretend that all is well.)
2254 if test -n "$appdirs" ; then
2255 for dir in $appdirs ; do
2256 if test -r $dir/Makefile.in ; then
2257 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2258 appdirs=""
2259 break
2260 fi
23f6b2f9 2261 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
e4c9c075
PB		 2262 appdirs=""
2263 break
2264 fi
2265 fi
2266 done
2267 if test -n "$appdirs" ; then
2268 echo "*** This configuration is not supported by this package." 1>&2
2269 exit 1
2270 fi
2271 fi
2272 # Okay, some application will build, or we don't care to check. Still
2273 # notify of subdirs not getting built.
2274 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2275 echo " ${notsupp}" 1>&2
2276 echo " (Any other directories should still work fine.)" 1>&2
2277fi
2278
2279case "$host" in
2280 *msdosdjgpp*)
2281 enable_gdbtk=no ;;
2282esac
2283
c3a86da9
DJ		 2284# To find our prefix, in gcc_cv_tool_prefix.
2285ACX_TOOL_DIRS
2286
e4c9c075
PB		 2287copy_dirs=
2288
526635cb 2289AC_ARG_WITH([build-sysroot],
33e39b66
AS		 2290 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2291 [use sysroot as the system root during the build])],
526635cb
MM		 2292 [if test x"$withval" != x ; then
2293 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2294 fi],
2295 [SYSROOT_CFLAGS_FOR_TARGET=])
2296AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2297
c8aea42c 2298AC_ARG_WITH([debug-prefix-map],
33e39b66
AS		 2299 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2300 [map A to B, C to D ... in debug information])],
c8aea42c
PB		 2301 [if test x"$withval" != x; then
2302 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2303 for debug_map in $withval; do
2304 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2305 done
2306 fi],
2307 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2308AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2309
1c8bd6a3
PB		 2310# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2311# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2312# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2313# We want to ensure that TARGET libraries (which we know are built with
2314# gcc) are built with "-O2 -g", so include those options when setting
2315# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2316if test "x$CFLAGS_FOR_TARGET" = x; then
2317 CFLAGS_FOR_TARGET=$CFLAGS
2318 case " $CFLAGS " in
2319 *" -O2 "*) ;;
bd8e704f 2320 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
1c8bd6a3
PB		 2321 esac
2322 case " $CFLAGS " in
2323 *" -g "* | *" -g3 "*) ;;
bd8e704f 2324 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
1c8bd6a3
PB		 2325 esac
2326fi
2327AC_SUBST(CFLAGS_FOR_TARGET)
2328
2329if test "x$CXXFLAGS_FOR_TARGET" = x; then
2330 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2331 case " $CXXFLAGS " in
2332 *" -O2 "*) ;;
bd8e704f 2333 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
1c8bd6a3
PB		 2334 esac
2335 case " $CXXFLAGS " in
2336 *" -g "* | *" -g3 "*) ;;
bd8e704f 2337 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
1c8bd6a3
PB		 2338 esac
2339fi
2340AC_SUBST(CXXFLAGS_FOR_TARGET)
2341
6f57bdf6
DK		 2342AC_SUBST(LDFLAGS_FOR_TARGET)
2343
e4c9c075
PB		 2344# Handle --with-headers=XXX. If the value is not "yes", the contents of
2345# the named directory are copied to $(tooldir)/sys-include.
2346if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2347 if test x${is_cross_compiler} = xno ; then
2348 echo 1>&2 '***' --with-headers is only supported when cross compiling
2349 exit 1
2350 fi
2351 if test x"${with_headers}" != xyes ; then
c3a86da9 2352 x=${gcc_cv_tool_prefix}
1c710c3c 2353 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
e4c9c075
PB		 2354 fi
2355fi
2356
2357# Handle --with-libs=XXX. If the value is not "yes", the contents of
2358# the name directories are copied to $(tooldir)/lib. Multiple directories
2359# are permitted.
2360if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2361 if test x${is_cross_compiler} = xno ; then
2362 echo 1>&2 '***' --with-libs is only supported when cross compiling
2363 exit 1
2364 fi
2365 if test x"${with_libs}" != xyes ; then
2366 # Copy the libraries in reverse order, so that files in the first named
2367 # library override files in subsequent libraries.
c3a86da9 2368 x=${gcc_cv_tool_prefix}
e4c9c075 2369 for l in ${with_libs}; do
1c710c3c 2370 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
e4c9c075
PB		 2371 done
2372 fi
2373fi
2374
d7f09764 2375# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
e8b05380
PB		 2376#
2377# This is done by determining whether or not the appropriate directory
2378# is available, and by checking whether or not specific configurations
2379# have requested that this magic not happen.
2380#
2381# The command line options always override the explicit settings in
2382# configure.in, and the settings in configure.in override this magic.
2383#
2384# If the default for a toolchain is to use GNU as and ld, and you don't
2385# want to do that, then you should use the --without-gnu-as and
d7f09764
DN		 2386# --without-gnu-ld options for the configure script. Similarly, if
2387# the default is to use the included zlib and you don't want to do that,
2388# you should use the --with-system-zlib option for the configure script.
e8b05380
PB		 2389
2390if test x${use_gnu_as} = x &&
2391 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2392 with_gnu_as=yes
2393 extra_host_args="$extra_host_args --with-gnu-as"
2394fi
2395
2396if test x${use_gnu_ld} = x &&
5afab7ad 2397 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
e8b05380
PB		 2398 with_gnu_ld=yes
2399 extra_host_args="$extra_host_args --with-gnu-ld"
2400fi
2401
d7f09764
DN		 2402if test x${use_included_zlib} = x &&
2403 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2404 :
2405else
2406 with_system_zlib=yes
2407 extra_host_args="$extra_host_args --with-system-zlib"
2408fi
2409
e8b05380
PB		 2410# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2411# can detect this case.
2412
2413if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2414 with_newlib=yes
2415 extra_host_args="$extra_host_args --with-newlib"
2416fi
2417
e4c9c075
PB		 2418# Handle ${copy_dirs}
2419set fnord ${copy_dirs}
2420shift
2421while test $# != 0 ; do
2422 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2423 :
2424 else
2425 echo Copying $1 to $2
2426
2427 # Use the install script to create the directory and all required
2428 # parent directories.
2429 if test -d $2 ; then
2430 :
2431 else
2432 echo >config.temp
2433 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2434 fi
2435
2436 # Copy the directory, assuming we have tar.
2437 # FIXME: Should we use B in the second tar? Not all systems support it.
2438 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2439
2440 # It is the responsibility of the user to correctly adjust all
2441 # symlinks. If somebody can figure out how to handle them correctly
2442 # here, feel free to add the code.
2443
2444 echo $1 > $2/COPIED
2445 fi
2446 shift; shift
2447done
2448
e8b05380
PB		 2449# Determine a target-dependent exec_prefix that the installed
2450# gcc will search in. Keep this list sorted by triplet, with
2451# the *-*-osname triplets last.
2452md_exec_prefix=
2453case "${target}" in
30b74385 2454 i[[34567]]86-pc-msdosdjgpp*)
e8b05380
PB		 2455 md_exec_prefix=/dev/env/DJDIR/bin
2456 ;;
e8b05380 2457 *-*-hpux* | \
e8b05380 2458 *-*-nto-qnx* | \
6de66370 2459 *-*-solaris2*)
e8b05380
PB		 2460 md_exec_prefix=/usr/ccs/bin
2461 ;;
2462esac
2463
4977bab6
ZW		 2464extra_arflags_for_target=
2465extra_nmflags_for_target=
2a726918 2466extra_ranlibflags_for_target=
671aa708 2467target_makefile_frag=/dev/null
55380b08 2468case "${target}" in
58e24147
AM		 2469 spu-*-*)
2470 target_makefile_frag="config/mt-spu"
2471 ;;
74ae587e 2472 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
4bf6c438
RS		 2473 target_makefile_frag="config/mt-sde"
2474 ;;
1ec3b87b
RS		 2475 mipsisa*-*-elfoabi*)
2476 target_makefile_frag="config/mt-mips-elfoabi"
2477 ;;
08d0963a
RS		 2478 mips*-*-*linux* | mips*-*-gnu*)
2479 target_makefile_frag="config/mt-mips-gnu"
2480 ;;
707f1839
SL		 2481 nios2-*-elf*)
2482 target_makefile_frag="config/mt-nios2-elf"
2483 ;;
416ac4d4 2484 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
98a5bb3b 2485 target_makefile_frag="config/mt-gnu"
55380b08 2486 ;;
671aa708 2487 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
4977bab6
ZW		 2488 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2489 # commands to handle both 32-bit and 64-bit objects. These flags are
2490 # harmless if we're using GNU nm or ar.
2491 extra_arflags_for_target=" -X32_64"
2492 extra_nmflags_for_target=" -B -X32_64"
55380b08 2493 ;;
c3b7d169
NN		 2494esac
2495
671aa708 2496alphaieee_frag=/dev/null
c3b7d169
NN		 2497case $target in
2498 alpha*-*-*)
2499 # This just makes sure to use the -mieee option to build target libs.
2500 # This should probably be set individually by each library.
2501 alphaieee_frag="config/mt-alphaieee"
55380b08
NN		 2502 ;;
2503esac
701afd4d 2504
55380b08
NN		 2505# If --enable-target-optspace always use -Os instead of -O2 to build
2506# the target libraries, similarly if it is not specified, use -Os
2507# on selected platforms.
671aa708 2508ospace_frag=/dev/null
55380b08
NN		 2509case "${enable_target_optspace}:${target}" in
2510 yes:*)
c3b7d169 2511 ospace_frag="config/mt-ospace"
55380b08
NN		 2512 ;;
2513 :d30v-*)
c3b7d169 2514 ospace_frag="config/mt-d30v"
55380b08
NN		 2515 ;;
2516 :m32r-* | :d10v-* | :fr30-*)
c3b7d169 2517 ospace_frag="config/mt-ospace"
55380b08
NN		 2518 ;;
2519 no:* | :*)
2520 ;;
2521 *)
2522 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2523 ;;
2524esac
6599da04 2525
671aa708
NN		 2526# Some systems (e.g., one of the i386-aix systems the gas testers are
2527# using) don't handle "\$" correctly, so don't use it here.
1c710c3c 2528tooldir='${exec_prefix}'/${target_noncanonical}
671aa708
NN		 2529build_tooldir=${tooldir}
2530
671aa708
NN		 2531# Create a .gdbinit file which runs the one in srcdir
2532# and tells GDB to look there for source files.
2533
2534if test -r ${srcdir}/.gdbinit ; then
2535 case ${srcdir} in
2536 .) ;;
2537 *) cat > ./.gdbinit <<EOF
2538# ${NO_EDIT}
2539dir ${srcdir}
2540dir .
2541source ${srcdir}/.gdbinit
2542EOF
2543 ;;
2544 esac
2545fi
2546
6599da04
JM		 2547# Make sure that the compiler is able to generate an executable. If it
2548# can't, we are probably in trouble. We don't care whether we can run the
2549# executable--we might be using a cross compiler--we only care whether it
2550# can be created. At this point the main configure script has set CC.
aeaa0f2f 2551we_are_ok=no
6599da04
JM		 2552echo "int main () { return 0; }" > conftest.c
2553${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
aeaa0f2f
NN		 2554if test $? = 0 ; then
2555 if test -s conftest || test -s conftest.exe ; then
2556 we_are_ok=yes
2557 fi
2558fi
2559case $we_are_ok in
2560 no)
2561 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2562 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2563 rm -f conftest*
2564 exit 1
2565 ;;
2566esac
6599da04
JM		 2567rm -f conftest*
2568
d89f0ad6 2569# Decide which environment variable is used to find dynamic libraries.
fe3d5b7f
NN		 2570case "${host}" in
2571 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
111eeb6e 2572 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
d89f0ad6 2573 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
fe3d5b7f
NN		 2574 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2575esac
fe3d5b7f 2576
d89f0ad6
AL		 2577# On systems where the dynamic library environment variable is PATH,
2578# gcc/ will put dynamic libraries into a subdirectory to avoid adding
2579# built executables to PATH.
2580if test "$RPATH_ENVVAR" = PATH; then
2581 GCC_SHLIB_SUBDIR=/shlib
2582else
2583 GCC_SHLIB_SUBDIR=
2584fi
2585
beeda1d9
JJ		 2586# Adjust the toplevel makefile according to whether bootstrap was selected.
2587case $enable_bootstrap in
2588 yes)
2589 bootstrap_suffix=bootstrap
2590 BUILD_CONFIG=bootstrap-debug
2591 ;;
2592 no)
2593 bootstrap_suffix=no-bootstrap
2594 BUILD_CONFIG=
2595 ;;
2596esac
2597
2598AC_MSG_CHECKING(for default BUILD_CONFIG)
2599
2600AC_ARG_WITH([build-config],
2601 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2602 [use config/NAME.mk build configuration])],
2603 [case $with_build_config in
2604 yes) with_build_config= ;;
2605 no) with_build_config= BUILD_CONFIG= ;;
2606 esac])
2607
2608if test "x${with_build_config}" != x; then
2609 BUILD_CONFIG=$with_build_config
2610else
2611 case $BUILD_CONFIG in
2612 bootstrap-debug)
2613 if echo "int f (void) { return 0; }" > conftest.c &&
2614 ${CC} -c conftest.c &&
2615 mv conftest.o conftest.o.g0 &&
2616 ${CC} -c -g conftest.c &&
2617 mv conftest.o conftest.o.g &&
2618 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2619 :
2620 else
2621 BUILD_CONFIG=
2622 fi
2623 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2624 ;;
2625 esac
2626fi
2627AC_MSG_RESULT($BUILD_CONFIG)
2628AC_SUBST(BUILD_CONFIG)
2629
2630# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2631AC_MSG_CHECKING([for --enable-vtable-verify])
2632AC_ARG_ENABLE(vtable-verify,
2633[ --enable-vtable-verify Enable vtable verification feature ],
2634[case "$enableval" in
2635 yes) enable_vtable_verify=yes ;;
2636 no) enable_vtable_verify=no ;;
2637 *) enable_vtable_verify=no;;
2638 esac],
2639[enable_vtable_verify=no])
2640AC_MSG_RESULT($enable_vtable_verify)
2641
4977bab6
ZW		 2642# Record target_configdirs and the configure arguments for target and
2643# build configuration in Makefile.
2644target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
23f6b2f9 2645build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
9e1c8fc1 2646bootstrap_fixincludes=no
4977bab6 2647
ad1e5170
JR		 2648# If we are building libgomp, bootstrap it.
2649if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2650 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2651fi
2652
beeda1d9
JJ		 2653# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2654# or bootstrap-ubsan, bootstrap it.
2655if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2656 case "$BUILD_CONFIG" in
2657 *bootstrap-asan* | *bootstrap-ubsan* )
2658 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
9e1c8fc1 2659 bootstrap_fixincludes=yes
beeda1d9
JJ		 2660 ;;
2661 esac
ac8701fe
L		 2662fi
2663
beeda1d9
JJ		 2664# If we are building libvtv and --enable-vtable-verify, bootstrap it.
2665if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2666 test "$enable_vtable_verify" != no; then
2077db1b
CT		 2667 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2668fi
2669
4977bab6
ZW		 2670# Determine whether gdb needs tk/tcl or not.
2671# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2672# and in that case we want gdb to be built without tk. Ugh!
2673# In fact I believe gdb is the *only* package directly dependent on tk,
2674# so we should be able to put the 'maybe's in unconditionally and
2675# leave out the maybe dependencies when enable_gdbtk is false. I'm not
2676# 100% sure that that's safe though.
e914a571 2677
b4f96efe 2678gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
4977bab6
ZW		 2679case "$enable_gdbtk" in
2680 no)
2681 GDB_TK="" ;;
e914a571
AC		 2682 yes)
2683 GDB_TK="${gdb_tk}" ;;
4977bab6 2684 *)
e914a571
AC		 2685 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2686 # distro. Eventually someone will fix this and move Insight, nee
2687 # gdbtk to a separate directory.
2688 if test -d ${srcdir}/gdb/gdbtk ; then
2689 GDB_TK="${gdb_tk}"
2690 else
2691 GDB_TK=""
2692 fi
2693 ;;
4977bab6 2694esac
ef9db8d5
DJ		 2695CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2696INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
4977bab6 2697
60975492 2698# Strip out unwanted targets.
8b87bb96
NN		 2699
2700# While at that, we remove Makefiles if we were started for recursive
2701# configuration, so that the top-level Makefile reconfigures them,
2702# like we used to do when configure itself was recursive.
8b87bb96 2703
3e54529c
RW		 2704# Loop over modules. We used to use the "$extrasub" feature from Autoconf
2705# but now we're fixing up the Makefile ourselves with the additional
2706# commands passed to AC_CONFIG_FILES. Use separate variables
2707# extrasub-{build,host,target} not because there is any reason to split
2708# the substitutions up that way, but only to remain below the limit of
2709# 99 commands in a script, for HP-UX sed.
2710# Do not nest @if/@endif pairs, because configure will not warn you at all.
8b87bb96 2711
79cd2b23
RW		 2712case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2713 yes:yes:*\ gold\ *:*,c++,*) ;;
2714 yes:yes:*\ gold\ *:*)
2715 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2716 ;;
2717esac
2718
3e54529c 2719extrasub_build=
23f6b2f9 2720for module in ${build_configdirs} ; do
8b87bb96
NN		 2721 if test -z "${no_recursion}" \
2722 && test -f ${build_subdir}/${module}/Makefile; then
2723 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2724 rm -f ${build_subdir}/${module}/Makefile
2725 fi
3e54529c 2726 extrasub_build="$extrasub_build
60975492 2727/^@if build-$module\$/d
5607edfd
PB		 2728/^@endif build-$module\$/d
2729/^@if build-$module-$bootstrap_suffix\$/d
2730/^@endif build-$module-$bootstrap_suffix\$/d"
8b87bb96 2731done
3e54529c 2732extrasub_host=
8b87bb96 2733for module in ${configdirs} ; do
a6fbc1e2 2734 if test -z "${no_recursion}"; then
f063a9ed 2735 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
a6fbc1e2
AS		 2736 if test -f ${file}; then
2737 echo 1>&2 "*** removing ${file} to force reconfigure"
2738 rm -f ${file}
2739 fi
2740 done
8b87bb96 2741 fi
9e1c8fc1
JJ		 2742 case ${module},${bootstrap_fixincludes} in
2743 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2744 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2745 esac
3e54529c 2746 extrasub_host="$extrasub_host
60975492 2747/^@if $module\$/d
5607edfd 2748/^@endif $module\$/d
9e1c8fc1
JJ		 2749/^@if $module-$host_bootstrap_suffix\$/d
2750/^@endif $module-$host_bootstrap_suffix\$/d"
8b87bb96 2751done
3e54529c 2752extrasub_target=
8b87bb96
NN		 2753for module in ${target_configdirs} ; do
2754 if test -z "${no_recursion}" \
2755 && test -f ${target_subdir}/${module}/Makefile; then
2756 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2757 rm -f ${target_subdir}/${module}/Makefile
2758 fi
00020c16
ILT		 2759
2760 # We only bootstrap target libraries listed in bootstrap_target_libs.
2761 case $bootstrap_target_libs in
2762 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2763 *) target_bootstrap_suffix=no-bootstrap ;;
2764 esac
2765
3e54529c 2766 extrasub_target="$extrasub_target
60975492 2767/^@if target-$module\$/d
5607edfd 2768/^@endif target-$module\$/d
00020c16
ILT		 2769/^@if target-$module-$target_bootstrap_suffix\$/d
2770/^@endif target-$module-$target_bootstrap_suffix\$/d"
4977bab6 2771done
f516a7da 2772
3e54529c
RW		 2773# Do the final fixup along with target modules.
2774extrasub_target="$extrasub_target
60975492 2775/^@if /,/^@endif /d"
4977bab6
ZW		 2776
2777# Create the serialization dependencies. This uses a temporary file.
2778
ade82b16 2779AC_ARG_ENABLE([serial-configure],
33e39b66
AS		 2780[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2781 [force sequential configuration of
2782 sub-packages for the host, target or build
2783 machine, or all sub-packages])])
bf1d3e81
NN		 2784
2785case ${enable_serial_configure} in
2786 yes)
2787 enable_serial_build_configure=yes
2788 enable_serial_host_configure=yes
2789 enable_serial_target_configure=yes
2790 ;;
2791esac
ade82b16 2792
4977bab6
ZW		 2793# These force 'configure's to be done one at a time, to avoid problems
2794# with contention over a shared config.cache.
2795rm -f serdep.tmp
ade82b16 2796echo '# serdep.tmp' > serdep.tmp
4977bab6 2797olditem=
bf1d3e81 2798test "x${enable_serial_build_configure}" = xyes &&
4977bab6
ZW		 2799for item in ${build_configdirs} ; do
2800 case ${olditem} in
2801 "") ;;
ade82b16 2802 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2803 esac
2804 olditem=${item}
2805done
2806olditem=
bf1d3e81 2807test "x${enable_serial_host_configure}" = xyes &&
4977bab6
ZW		 2808for item in ${configdirs} ; do
2809 case ${olditem} in
2810 "") ;;
ade82b16 2811 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2812 esac
2813 olditem=${item}
2814done
2815olditem=
bf1d3e81 2816test "x${enable_serial_target_configure}" = xyes &&
4977bab6
ZW		 2817for item in ${target_configdirs} ; do
2818 case ${olditem} in
2819 "") ;;
ade82b16 2820 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2821 esac
2822 olditem=${item}
2823done
671aa708
NN		 2824serialization_dependencies=serdep.tmp
2825AC_SUBST_FILE(serialization_dependencies)
fe3d5b7f 2826
ade82b16 2827# Base args. Strip norecursion, cache-file, srcdir, host, build,
1c710c3c 2828# target, nonopt, and variable assignments. These are the ones we
f1a036e4
NC		 2829# might not want to pass down to subconfigures. The exception being
2830# --cache-file=/dev/null, which is used to turn off the use of cache
2831# files altogether, and which should be passed on to subconfigures.
2832# Also strip program-prefix, program-suffix, and program-transform-name,
2833# so that we can pass down a consistent program-transform-name.
1c710c3c 2834baseargs=
29a63921 2835tbaseargs=
1c710c3c
DJ		 2836keep_next=no
2837skip_next=no
2838eval "set -- $ac_configure_args"
44bfc3ac
DJ		 2839for ac_arg
2840do
1c710c3c
DJ		 2841 if test X"$skip_next" = X"yes"; then
2842 skip_next=no
2843 continue
2844 fi
2845 if test X"$keep_next" = X"yes"; then
2846 case $ac_arg in
2847 *\'*)
2848 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2849 esac
2850 baseargs="$baseargs '$ac_arg'"
29a63921 2851 tbaseargs="$tbaseargs '$ac_arg'"
1c710c3c
DJ		 2852 keep_next=no
2853 continue
2854 fi
2855
2856 # Handle separated arguments. Based on the logic generated by
2857 # autoconf 2.59.
2858 case $ac_arg in
2859 *=* | --config-cache | -C | -disable-* | --disable-* \
2860 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2861 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2862 | -with-* | --with-* | -without-* | --without-* | --x)
2863 separate_arg=no
2864 ;;
2865 -*)
2866 separate_arg=yes
2867 ;;
2868 *)
2869 separate_arg=no
2870 ;;
2871 esac
2872
29a63921
AO		 2873 skip_targ=no
2874 case $ac_arg in
2875changequote(,)
2876 --with-* | --without-*)
2877 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2878
2879 case $libopt in
2880 *[-_]include)
2881 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2882 ;;
2883 *[-_]lib)
2884 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2885 ;;
2886 *)
2887 lib=$libopt
2888 ;;
2889 esac
2890changequote([,])
2891
2892 case $lib in
4a9bb2aa 2893 mpc | mpfr | gmp | isl)
29a63921
AO		 2894 # If we're processing --with-$lib, --with-$lib-include or
2895 # --with-$lib-lib, for one of the libs above, and target is
2896 # different from host, don't pass the current argument to any
2897 # target library's configure.
2898 if test x$is_cross_compiler = xyes; then
2899 skip_targ=yes
2900 fi
2901 ;;
2902 esac
2903 ;;
2904 esac
2905
1c710c3c 2906 case "$ac_arg" in
f1a036e4
NC		 2907 --cache-file=/dev/null | \
2908 -cache-file=/dev/null )
2909 # Handled here to avoid the test to skip args below.
2910 baseargs="$baseargs '$ac_arg'"
29a63921 2911 tbaseargs="$tbaseargs '$ac_arg'"
f1a036e4
NC		 2912 # Assert: $separate_arg should always be no.
2913 keep_next=$separate_arg
2914 ;;
1c710c3c
DJ		 2915 --no*)
2916 continue
2917 ;;
2918 --c* | \
2919 --sr* | \
2920 --ho* | \
2921 --bu* | \
2922 --t* | \
2923 --program-* | \
2924 -cache_file* | \
2925 -srcdir* | \
2926 -host* | \
2927 -build* | \
2928 -target* | \
2929 -program-prefix* | \
2930 -program-suffix* | \
2931 -program-transform-name* )
2932 skip_next=$separate_arg
2933 continue
2934 ;;
2935 -*)
2936 # An option. Add it.
2937 case $ac_arg in
2938 *\'*)
2939 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2940 esac
2941 baseargs="$baseargs '$ac_arg'"
29a63921
AO		 2942 if test X"$skip_targ" = Xno; then
2943 tbaseargs="$tbaseargs '$ac_arg'"
2944 fi
1c710c3c
DJ		 2945 keep_next=$separate_arg
2946 ;;
2947 *)
2948 # Either a variable assignment, or a nonopt (triplet). Don't
2949 # pass it down; let the Makefile handle this.
2950 continue
2951 ;;
2952 esac
2953done
2954# Remove the initial space we just introduced and, as these will be
2955# expanded by make, quote '$'.
2956baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
6599da04 2957
43bb47c2
DJ		 2958# Add in --program-transform-name, after --program-prefix and
2959# --program-suffix have been applied to it. Autoconf has already
2960# doubled dollar signs and backslashes in program_transform_name; we want
2961# the backslashes un-doubled, and then the entire thing wrapped in single
2962# quotes, because this will be expanded first by make and then by the shell.
2963# Also, because we want to override the logic in subdir configure scripts to
2964# choose program_transform_name, replace any s,x,x, with s,y,y,.
2965sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2966${program_transform_name}
2967EOF_SED
2968gcc_transform_name=`cat conftestsed.out`
2969rm -f conftestsed.out
2970baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
29a63921 2971tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
d9acb717
RW		 2972if test "$silent" = yes; then
2973 baseargs="$baseargs --silent"
29a63921 2974 tbaseargs="$tbaseargs --silent"
d9acb717 2975fi
0115d4a3 2976baseargs="$baseargs --disable-option-checking"
29a63921 2977tbaseargs="$tbaseargs --disable-option-checking"
43bb47c2 2978
ffedf511
RW		 2979# Record and document user additions to sub configure arguments.
2980AC_ARG_VAR([build_configargs],
2981 [additional configure arguments for build directories])
2982AC_ARG_VAR([host_configargs],
2983 [additional configure arguments for host directories])
2984AC_ARG_VAR([target_configargs],
2985 [additional configure arguments for target directories])
2986
e490616e
ZW		 2987# For the build-side libraries, we just need to pretend we're native,
2988# and not use the same cache file. Multilibs are neither needed nor
3d96b0d0
HPN		 2989# desired. We can't even use the same cache file for all build-side
2990# libraries, as they're compiled differently; some with C, some with
2991# C++ or with different feature-enabling options.
2992build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
e254d6b5 2993
4977bab6
ZW		 2994# For host modules, accept cache file option, or specification as blank.
2995case "${cache_file}" in
2996"") # empty
2997 cache_file_option="" ;;
671aa708 2998/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
4977bab6
ZW		 2999 cache_file_option="--cache-file=${cache_file}" ;;
3000*) # relative path
3001 cache_file_option="--cache-file=../${cache_file}" ;;
3002esac
3003
09438bde
NN		 3004# Host dirs don't like to share a cache file either, horribly enough.
3005# This seems to be due to autoconf 2.5x stupidity.
ffedf511 3006host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
4977bab6 3007
29a63921 3008target_configargs="$target_configargs ${tbaseargs}"
e490616e 3009
6599da04
JM		 3010# Passing a --with-cross-host argument lets the target libraries know
3011# whether they are being built with a cross-compiler or being built
3012# native. However, it would be better to use other mechanisms to make the
3013# sorts of decisions they want to make on this basis. Please consider
3014# this option to be deprecated. FIXME.
aeaa0f2f 3015if test x${is_cross_compiler} = xyes ; then
1c710c3c 3016 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
6599da04
JM		 3017fi
3018
79e0604d
FXC		 3019# Special user-friendly check for native x86_64-linux build, if
3020# multilib is not explicitly enabled.
3021case "$target:$have_compiler:$host:$target:$enable_multilib" in
3022 x86_64-*linux*:yes:$build:$build:)
3023 # Make sure we have a developement environment that handles 32-bit
3024 dev64=no
3025 echo "int main () { return 0; }" > conftest.c
3026 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3027 if test $? = 0 ; then
3028 if test -s conftest || test -s conftest.exe ; then
3029 dev64=yes
3030 fi
3031 fi
3032 rm -f conftest*
3033 if test x${dev64} != xyes ; then
3034 AC_MSG_ERROR([I suspect your system does not have 32-bit developement 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.])
3035 fi
3036 ;;
3037esac
3038
dc683a3f
RW		 3039# Default to --enable-multilib.
3040if test x${enable_multilib} = x ; then
3fedb745 3041 target_configargs="--enable-multilib ${target_configargs}"
dc683a3f 3042fi
6599da04 3043
5d4a5ee6
JL		 3044# Pass --with-newlib if appropriate. Note that target_configdirs has
3045# changed from the earlier setting of with_newlib.
aeaa0f2f 3046if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3fedb745 3047 target_configargs="--with-newlib ${target_configargs}"
5d4a5ee6
JL		 3048fi
3049
6b9eb62c
NN		 3050# Different target subdirs use different values of certain variables
3051# (notably CXX). Worse, multilibs use *lots* of different values.
3052# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3053# it doesn't automatically accept command-line overrides of them.
3054# This means it's not safe for target subdirs to share a cache file,
3055# which is disgusting, but there you have it. Hopefully this can be
3056# fixed in future. It's still worthwhile to use a cache file for each
3057# directory. I think.
3058
bebcd931
MS		 3059# Pass the appropriate --build, --host, --target and --cache-file arguments.
3060# We need to pass --target, as newer autoconf's requires consistency
3061# for target_alias and gcc doesn't manage it consistently.
e69bf64b 3062target_configargs="--cache-file=./config.cache ${target_configargs}"
e490616e 3063
b87487b6 3064FLAGS_FOR_TARGET=
bb654703 3065case " $target_configdirs " in
7965440a 3066 *" newlib "*)
3fedb745 3067 case " $target_configargs " in
7965440a 3068 *" --with-newlib "*)
b87487b6 3069 case "$target" in
5d571eaa 3070 *-cygwin*)
443e6238 3071 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
5d571eaa 3072 ;;
b87487b6
AO		 3073 esac
3074
afd7db25 3075 # If we're not building GCC, don't discard standard headers.
ef40bc65 3076 if test -d ${srcdir}/gcc; then
d4eb109c 3077 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
afd7db25
AO		 3078
3079 if test "${build}" != "${host}"; then
3080 # On Canadian crosses, CC_FOR_TARGET will have already been set
3081 # by `configure', so we won't have an opportunity to add -Bgcc/
3082 # to it. This is right: we don't want to search that directory
3083 # for binaries, but we want the header files in there, so add
3084 # them explicitly.
0463992b 3085 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
afd7db25
AO		 3086
3087 # Someone might think of using the pre-installed headers on
3088 # Canadian crosses, in case the installed compiler is not fully
3089 # compatible with the compiler being built. In this case, it
3090 # would be better to flag an error than risking having
3091 # incompatible object files being constructed. We can't
3092 # guarantee that an error will be flagged, but let's hope the
3093 # compiler will do it, when presented with incompatible header
3094 # files.
3095 fi
d4eb109c
AO		 3096 fi
3097
ab50d72b 3098 case "${target}-${is_cross_compiler}" in
f2a0e225 3099 i[[3456789]]86-*-linux*-no)
ab50d72b
DD		 3100 # Here host == target, so we don't need to build gcc,
3101 # so we don't want to discard standard headers.
3102 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
ab50d72b
DD		 3103 ;;
3104 *)
3105 # If we're building newlib, use its generic headers last, but search
3106 # for any libc-related directories first (so make it the last -B
3107 # switch).
3108 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
c03353e2
RIL		 3109
3110 # If we're building libgloss, find the startup file, simulator library
3111 # and linker script.
3112 case " $target_configdirs " in
3113 *" libgloss "*)
3114 # Look for startup file, simulator library and maybe linker script.
3115 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3116 # Look for libnosys.a in case the target needs it.
3117 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3118 # Most targets have the linker script in the source directory.
3119 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3120 ;;
3121 esac
ab50d72b
DD		 3122 ;;
3123 esac
b87487b6 3124 ;;
7965440a
AO		 3125 esac
3126 ;;
b87487b6 3127esac
5d571eaa 3128
b91f0a41 3129case "$target" in
5d571eaa
OS		 3130 x86_64-*mingw* | *-w64-mingw*)
3131 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3132 # however, use a symlink named 'mingw' in ${prefix} .
3133 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3134 ;;
3135 *-mingw*)
3136 # MinGW can't be handled as Cygwin above since it does not use newlib.
3137 FLAGS_FOR_TARGET=$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'
3138 ;;
b91f0a41 3139esac
d4eb109c 3140
6691a79e
ME		 3141# Allow the user to override the flags for
3142# our build compiler if desired.
f019adc1
MF		 3143if test x"${build}" = x"${host}" ; then
3144 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3145 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3146 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3147fi
6691a79e 3148
d4eb109c
AO		 3149# On Canadian crosses, we'll be searching the right directories for
3150# the previously-installed cross compiler, so don't bother to add
3151# flags for directories within the install tree of the compiler
3152# being built; programs in there won't even run.
ef40bc65 3153if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
b87487b6 3154 # Search for pre-installed headers if nothing else fits.
9124bc53 3155 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
b87487b6 3156fi
d4eb109c 3157
bb654703 3158if test "x${use_gnu_ld}" = x &&
55380b08 3159 echo " ${configdirs} " | grep " ld " > /dev/null ; then
b87487b6 3160 # Arrange for us to find uninstalled linker scripts.
215c351a 3161 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
b87487b6
AO		 3162fi
3163
e88a2c09
DD		 3164# Search for other target-specific linker scripts and such.
3165case "${target}" in
3e19841a
PB		 3166 mep*)
3167 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3168 ;;
e88a2c09
DD		 3169esac
3170
671aa708 3171# Makefile fragments.
7b61653a
PE		 3172for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3173do
3174 eval fragval=\$$frag
3175 if test $fragval != /dev/null; then
3176 eval $frag=${srcdir}/$fragval
3177 fi
3178done
671aa708
NN		 3179AC_SUBST_FILE(host_makefile_frag)
3180AC_SUBST_FILE(target_makefile_frag)
3181AC_SUBST_FILE(alphaieee_frag)
3182AC_SUBST_FILE(ospace_frag)
3183
3184# Miscellanea: directories, flags, etc.
671aa708 3185AC_SUBST(RPATH_ENVVAR)
d89f0ad6 3186AC_SUBST(GCC_SHLIB_SUBDIR)
671aa708
NN		 3187AC_SUBST(tooldir)
3188AC_SUBST(build_tooldir)
ef9db8d5 3189AC_SUBST(CONFIGURE_GDB_TK)
671aa708 3190AC_SUBST(GDB_TK)
ef9db8d5 3191AC_SUBST(INSTALL_GDB_TK)
671aa708
NN		 3192
3193# Build module lists & subconfigure args.
671aa708 3194AC_SUBST(build_configargs)
23f6b2f9 3195AC_SUBST(build_configdirs)
671aa708
NN		 3196
3197# Host module lists & subconfigure args.
3198AC_SUBST(host_configargs)
3199AC_SUBST(configdirs)
aae29963 3200AC_SUBST(target_configdirs)
671aa708
NN		 3201
3202# Target module lists & subconfigure args.
671aa708 3203AC_SUBST(target_configargs)
ee2312f3 3204
671aa708
NN		 3205
3206# Build tools.
0999159b
PB		 3207AC_SUBST(AR_FOR_BUILD)
3208AC_SUBST(AS_FOR_BUILD)
671aa708 3209AC_SUBST(CC_FOR_BUILD)
0999159b
PB		 3210AC_SUBST(CFLAGS_FOR_BUILD)
3211AC_SUBST(CXXFLAGS_FOR_BUILD)
3212AC_SUBST(CXX_FOR_BUILD)
3213AC_SUBST(DLLTOOL_FOR_BUILD)
3214AC_SUBST(GCJ_FOR_BUILD)
3215AC_SUBST(GFORTRAN_FOR_BUILD)
632e2a07 3216AC_SUBST(GOC_FOR_BUILD)
0999159b
PB		 3217AC_SUBST(LDFLAGS_FOR_BUILD)
3218AC_SUBST(LD_FOR_BUILD)
3219AC_SUBST(NM_FOR_BUILD)
3220AC_SUBST(RANLIB_FOR_BUILD)
3221AC_SUBST(WINDMC_FOR_BUILD)
3222AC_SUBST(WINDRES_FOR_BUILD)
671aa708 3223
2abefe3d
PB		 3224# Generate default definitions for YACC, M4, LEX and other programs that run
3225# on the build machine. These are used if the Makefile can't locate these
3226# programs in objdir.
3227MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3228
3229AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3230case " $build_configdirs " in
3231 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2abefe3d
PB		 3232esac
3233
3234AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3235case " $build_configdirs " in
3236 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3237esac
3238
3239AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3240case " $build_configdirs " in
3241 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3242esac
3243
3244AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3245case " $build_configdirs " in
3246 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3247 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3248esac
3249
3250AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3251case " $build_configdirs " in
3252 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3253esac
3254
3255AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3256case " $build_configdirs " in
3257 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3258 *)
3259changequote(,)
d18ff35a 3260 # For an installed makeinfo, we require it to be from texinfo 4.7 or
2abefe3d
PB		 3261 # higher, else we use the "missing" dummy.
3262 if ${MAKEINFO} --version \
d18ff35a 3263 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
2abefe3d
PB		 3264 :
3265 else
3266 MAKEINFO="$MISSING makeinfo"
3267 fi
3268 ;;
3269changequote([,])
3270esac
3271
3272# FIXME: expect and dejagnu may become build tools?
3273
3274AC_CHECK_PROGS(EXPECT, expect, expect)
3275case " $configdirs " in
3276 *" expect "*)
3277 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3278 ;;
3279esac
3280
3281AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3282case " $configdirs " in
3283 *" dejagnu "*)
c394e891 3284 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2abefe3d
PB		 3285 ;;
3286esac
3287
3288
671aa708 3289# Host tools.
2693c0b0
PB		 3290NCN_STRICT_CHECK_TOOLS(AR, ar)
3291NCN_STRICT_CHECK_TOOLS(AS, as)
3292NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3293NCN_STRICT_CHECK_TOOLS(LD, ld)
2abefe3d 3294NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2693c0b0 3295NCN_STRICT_CHECK_TOOLS(NM, nm)
8927b7c0
RO		 3296NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3297NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
2693c0b0 3298NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
901119ae 3299NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
2693c0b0
PB		 3300NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3301NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
e7a82751 3302NCN_STRICT_CHECK_TOOLS(READELF, readelf)
671aa708
NN		 3303AC_SUBST(CC)
3304AC_SUBST(CXX)
3305AC_SUBST(CFLAGS)
3306AC_SUBST(CXXFLAGS)
671aa708 3307
2abefe3d 3308# Target tools.
e8b05380 3309AC_ARG_WITH([build-time-tools],
33e39b66
AS		 3310 [AS_HELP_STRING([--with-build-time-tools=PATH],
3311 [use given path to find target tools during the build])],
e8b05380
PB		 3312 [case x"$withval" in
3313 x/*) ;;
3314 *)
3315 with_build_time_tools=
3316 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3317 ;;
3318 esac],
3319 [with_build_time_tools=])
3320
2693c0b0
PB		 3321NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3322NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2693c0b0
PB		 3323NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3324NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
3325NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
632e2a07 3326NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
e8b05380
PB		 3327
3328ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3329ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3330ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3331ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3332ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3333ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
9bccfdf5 3334ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
e8b05380 3335ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
8927b7c0 3336ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
e7a82751 3337ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
e8b05380
PB		 3338ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3339ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
901119ae 3340ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
4de997d1 3341
2abefe3d
PB		 3342RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3343
3344GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3345GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3346GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
b3f122e0 3347dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
2abefe3d 3348GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2077db1b 3349 [gcc/xg++ -B$$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$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
2abefe3d
PB		 3350 c++)
3351GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2077db1b 3352 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
2abefe3d
PB		 3353 c++)
3354GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3355GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3356GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
3357 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
3358GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3359 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
632e2a07
ILT		 3360GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3361 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
2abefe3d
PB		 3362GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3363GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3364GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
ec8fd1c0 3365GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
2abefe3d
PB		 3366GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3367GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
e7a82751 3368GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
455c8f48 3369GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
2abefe3d 3370GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
901119ae 3371GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
4de997d1 3372
2abefe3d 3373AC_SUBST(FLAGS_FOR_TARGET)
4de997d1 3374AC_SUBST(RAW_CXX_FOR_TARGET)
be912515 3375
671aa708
NN		 3376# Certain tools may need extra flags.
3377AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3378RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3379NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
6599da04 3380
2abefe3d
PB		 3381# When building target libraries, except in a Canadian cross, we use
3382# the same toolchain as the compiler we just built.
3383COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3384COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3385COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3386if test $host = $build; then
3387 case " $configdirs " in
3388 *" gcc "*)
3389 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3390 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3391 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3392 ;;
3393 esac
3394fi
3395
3396AC_SUBST(COMPILER_AS_FOR_TARGET)
3397AC_SUBST(COMPILER_LD_FOR_TARGET)
3398AC_SUBST(COMPILER_NM_FOR_TARGET)
3399
ee03dc5e
AO		 3400AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3401AC_ARG_ENABLE(maintainer-mode,
33e39b66
AS		 3402[AS_HELP_STRING([--enable-maintainer-mode],
3403 [enable make rules and dependencies not useful
3404 (and sometimes confusing) to the casual installer])],
ee03dc5e
AO		 3405 USE_MAINTAINER_MODE=$enableval,
3406 USE_MAINTAINER_MODE=no)
3407AC_MSG_RESULT($USE_MAINTAINER_MODE)
3408AC_SUBST(MAINTAINER_MODE_TRUE)
3409AC_SUBST(MAINTAINER_MODE_FALSE)
3410if test "$USE_MAINTAINER_MODE" = yes; then
3411 MAINTAINER_MODE_TRUE=
3412 MAINTAINER_MODE_FALSE='#'
3413else
3414 MAINTAINER_MODE_TRUE='#'
3415 MAINTAINER_MODE_FALSE=
3416fi
3417MAINT=$MAINTAINER_MODE_TRUE
3418AC_SUBST(MAINT)dnl
3419
2805b53a
NN		 3420# ---------------------
3421# GCC bootstrap support
3422# ---------------------
3423
3424# Stage specific cflags for build.
3425stage1_cflags="-g"
3426case $build in
3427 vax-*-*)
3428 case ${GCC} in
3429 yes) stage1_cflags="-g -Wa,-J" ;;
3430 *) stage1_cflags="-g -J" ;;
3431 esac ;;
2805b53a 3432esac
0b50988a 3433
2805b53a
NN		 3434AC_SUBST(stage1_cflags)
3435
8efea775
PB		 3436# Enable --enable-checking in stage1 of the compiler.
3437AC_ARG_ENABLE(stage1-checking,
33e39b66
AS		 3438[AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3439 [choose additional checking for stage1 of the compiler])],
8efea775 3440[stage1_checking=--enable-checking=${enable_stage1_checking}],
e643dc23 3441[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
7e98624c 3442 stage1_checking=--enable-checking=yes,types
8efea775 3443else
e643dc23 3444 stage1_checking=--enable-checking=$enable_checking,types
8efea775
PB		 3445fi])
3446AC_SUBST(stage1_checking)
3447
2805b53a 3448# Enable -Werror in bootstrap stage2 and later.
2805b53a 3449AC_ARG_ENABLE(werror,
33e39b66
AS		 3450[AS_HELP_STRING([--enable-werror],
3451 [enable -Werror in bootstrap stage2 and later])], [],
416cfb5e 3452[if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
88fceb68
PB		 3453 enable_werror=yes
3454else
3455 enable_werror=no
3456fi])
09a9c095
NN		 3457case ${enable_werror} in
3458 yes) stage2_werror_flag="--enable-werror-always" ;;
3459 *) stage2_werror_flag="" ;;
2805b53a 3460esac
09a9c095 3461AC_SUBST(stage2_werror_flag)
2805b53a 3462
459260ec
DM		 3463# Enable --enable-host-shared.
3464AC_ARG_ENABLE(host-shared,
3465[AS_HELP_STRING([--enable-host-shared],
3466 [build host code as shared libraries])],
3467[host_shared=$enableval], [host_shared=no])
3468AC_SUBST(host_shared)
3469
f2689b09
SE		 3470# Specify what files to not compare during bootstrap.
3471
3472compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3473case "$target" in
3474 hppa*64*-*-hpux*) ;;
3475 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
d7a29167 3476 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
f2689b09
SE		 3477esac
3478AC_SUBST(compare_exclusions)
3479
3e54529c
RW		 3480AC_CONFIG_FILES([Makefile],
3481 [sed "$extrasub_build" Makefile |
3482 sed "$extrasub_host" |
3483 sed "$extrasub_target" > mf$$
3484 mv -f mf$$ Makefile],
3485 [extrasub_build="$extrasub_build"
3486 extrasub_host="$extrasub_host"
3487 extrasub_target="$extrasub_target"])
3488AC_OUTPUT
GNU Compiler Collection
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