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c++: array new initialized from a call [PR99643]
[thirdparty/gcc.git] / configure.ac
CommitLineData
beeaf216 1# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
ec8fd1c0 2# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
9e530bcd 3# 2014, 2015, 2016 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)
0115d4a3 34AC_DISABLE_OPTION_CHECKING
1c710c3c 35
ad33ff57
RW		 36progname=$0
37# if PWD already has a value, it is probably wrong.
38if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
39
40# Export original configure arguments for use by sub-configures.
41# Quote arguments with shell meta charatcers.
42TOPLEVEL_CONFIGURE_ARGUMENTS=
43set -- "$progname" "$@"
44for ac_arg
45do
46 case "$ac_arg" in
47 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
48 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
49 # if the argument is of the form -foo=baz, quote the baz part only
50 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
51 *) ;;
52 esac
53 # Add the quoted argument to the list.
54 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
55done
56if test "$silent" = yes; then
57 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
58fi
59# Remove the initial space we just introduced and, as these will be
60# expanded by make, quote '$'.
61TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
62AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
63
1c710c3c
DJ		 64# Find the build, host, and target systems.
65ACX_NONCANONICAL_BUILD
66ACX_NONCANONICAL_HOST
67ACX_NONCANONICAL_TARGET
68
69dnl Autoconf 2.5x and later will set a default program prefix if
70dnl --target was used, even if it was the same as --host. Disable
71dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
72dnl to take effect.
73test "$host_noncanonical" = "$target_noncanonical" &&
74 test "$program_prefix$program_suffix$program_transform_name" = \
75 NONENONEs,x,x, &&
76 program_transform_name=s,y,y,
77
671aa708
NN		 78AC_CANONICAL_SYSTEM
79AC_ARG_PROGRAM
80
1c710c3c 81m4_pattern_allow([^AS_FOR_TARGET$])dnl
0999159b 82m4_pattern_allow([^AS_FOR_BUILD$])dnl
1c710c3c 83
775956d0
NN		 84# Get 'install' or 'install-sh' and its variants.
85AC_PROG_INSTALL
ad6717df 86ACX_PROG_LN
148907ea 87AC_PROG_LN_S
87264276
PB		 88AC_PROG_SED
89AC_PROG_AWK
775956d0 90
fc45f3fe
DJ		 91srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
92
93# We pass INSTALL explicitly to sub-makes. Make sure that it is not
94# a relative path.
95if test "$INSTALL" = "${srcdir}/install-sh -c"; then
96 INSTALL="${srcpwd}/install-sh -c"
97fi
98
671aa708
NN		 99# Set srcdir to "." if that's what it is.
100# This is important for multilib support.
101pwd=`${PWDCMD-pwd}`
671aa708
NN		 102if test "${pwd}" = "${srcpwd}" ; then
103 srcdir=.
104fi
105
106topsrcdir=$srcpwd
6599da04 107
4977bab6 108extra_host_args=
afabd8e6 109
6599da04
JM		 110### To add a new directory to the tree, first choose whether it is a target
111### or a host dependent tool. Then put it into the appropriate list
4977bab6
ZW		 112### (library or tools, host or target), doing a dependency sort.
113
114# Subdirs will be configured in the order listed in build_configdirs,
115# configdirs, or target_configdirs; see the serialization section below.
116
117# Dependency sorting is only needed when *configuration* must be done in
118# a particular order. In all cases a dependency should be specified in
119# the Makefile, whether or not it's implicitly specified here.
6599da04 120
4977bab6
ZW		 121# Double entries in build_configdirs, configdirs, or target_configdirs may
122# cause circular dependencies and break everything horribly.
6599da04 123
23f6b2f9
PB		 124# these library is used by various programs built for the build
125# environment
126#
929315a9 127build_libs="build-libiberty build-libcpp"
23f6b2f9
PB		 128
129# these tools are built for the build environment
85bfb75e 130build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
23f6b2f9 131
6599da04 132# these libraries are used by various programs built for the host environment
eae1a5d4 133#f
4a9bb2aa 134host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv"
6599da04 135
6599da04
JM		 136# these tools are built for the host environment
137# Note, the powerpc-eabi build depends on sim occurring before gdb in order to
138# know that we are building the simulator.
4977bab6
ZW		 139# binutils, gas and ld appear in that order because it makes sense to run
140# "make check" in that particular order.
38e3d868 141# If --enable-gold is used, "gold" may replace "ld".
bf1de3f0 142host_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 143
6599da04
JM		 144# these libraries are built for the target environment, and are built after
145# the host libraries and the host tools (which may be a cross compiler)
8499116a 146# Note that libiberty is not a target library.
291f172e 147target_libraries="target-libgcc \
eff02e4f 148 target-libbacktrace \
5d4a5ee6
JL		 149 target-libgloss \
150 target-newlib \
6d3b5aea 151 target-libgomp \
5f520819 152 target-liboffloadmic \
5fd1486c 153 target-libhsail-rt \
48310492 154 target-libatomic \
0a35513e 155 target-libitm \
cb543528 156 target-libstdc++-v3 \
f35db108 157 target-libsanitizer \
2077db1b 158 target-libvtv \
77008252 159 target-libssp \
1ec601bf 160 target-libquadmath \
6de9cd9a 161 target-libgfortran \
012447ea 162 target-libffi \
d9cdb878 163 target-libobjc \
632e2a07 164 target-libada \
b4c522fa 165 target-libgo \
bb50312e
IB		 166 target-libphobos \
167 target-zlib"
6599da04 168
4dbda6f0
NN		 169# these tools are built using the target libraries, and are intended to
170# run only in the target environment
6599da04 171#
4dbda6f0 172# note: any program that *uses* libraries that are in the "target_libraries"
1bcce263 173# list belongs in this list.
6599da04 174#
85bfb75e 175target_tools="target-rda"
6599da04
JM		 176
177################################################################################
178
6599da04
JM		 179## All tools belong in one of the four categories, and are assigned above
180## We assign ${configdirs} this way to remove all embedded newlines. This
181## is important because configure will choke if they ever get through.
182## ${configdirs} is directories we build using the host tools.
183## ${target_configdirs} is directories we build using the target tools.
6599da04 184configdirs=`echo ${host_libs} ${host_tools}`
4dbda6f0 185target_configdirs=`echo ${target_libraries} ${target_tools}`
71b5d516 186build_configdirs=`echo ${build_libs} ${build_tools}`
8b87bb96 187
ac9e6043 188m4_divert_text([PARSE_ARGS],
87841584
AM		 189[case $srcdir in
190 *" "*)
191m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
192 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
193m4_popdef([AS_MESSAGE_LOG_FD])dnl
194 ;;
195esac
196ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
ac9e6043
RW		 197])
198
6599da04
JM		 199################################################################################
200
6599da04
JM		 201srcname="gnu development package"
202
203# This gets set non-empty for some net releases of packages.
204appdirs=""
205
e1848dde
NN		 206# Define is_cross_compiler to save on calls to 'test'.
207is_cross_compiler=
208if test x"${host}" = x"${target}" ; then
209 is_cross_compiler=no
210else
211 is_cross_compiler=yes
212fi
213
b4acb5ef 214# Find the build and target subdir names.
8b87bb96 215GCC_TOPLEV_SUBDIRS
0db770bd
RW		 216# Be sure to cover against remnants of an in-tree build.
217if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
218 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
219Use a pristine source tree when building in a separate tree])
220fi
f653f0ab 221
55380b08
NN		 222# Skipdirs are removed silently.
223skipdirs=
224# Noconfigdirs are removed loudly.
225noconfigdirs=""
6599da04 226
55380b08
NN		 227use_gnu_ld=
228# Make sure we don't let GNU ld be added if we didn't want it.
229if test x$with_gnu_ld = xno ; then
230 use_gnu_ld=no
5afab7ad 231 noconfigdirs="$noconfigdirs ld gold"
6599da04
JM		 232fi
233
55380b08
NN		 234use_gnu_as=
235# Make sure we don't let GNU as be added if we didn't want it.
236if test x$with_gnu_as = xno ; then
237 use_gnu_as=no
238 noconfigdirs="$noconfigdirs gas"
6599da04
JM		 239fi
240
d7f09764 241use_included_zlib=
a05c2c75
L		 242AC_ARG_WITH(system-zlib,
243[AS_HELP_STRING([--with-system-zlib], [use installed libz])])
d7f09764
DN		 244# Make sure we don't let ZLIB be added if we didn't want it.
245if test x$with_system_zlib = xyes ; then
246 use_included_zlib=no
247 noconfigdirs="$noconfigdirs zlib"
248fi
249
55380b08
NN		 250# some tools are so dependent upon X11 that if we're not building with X,
251# it's not even worth trying to configure, much less build, that tool.
6599da04 252
55380b08
NN		 253case ${with_x} in
254 yes | "") ;; # the default value for this tree is that X11 is available
423ce3eb 255 no)
b4f96efe 256 skipdirs="${skipdirs} tk itcl libgui"
423ce3eb
NN		 257 # We won't be able to build gdbtk without X.
258 enable_gdbtk=no
259 ;;
55380b08
NN		 260 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
261esac
6599da04 262
1bcce263 263# Some are only suitable for cross toolchains.
95ddd785
NN		 264# Remove these if host=target.
265cross_only="target-libgloss target-newlib target-opcodes"
6599da04 266
55380b08
NN		 267case $is_cross_compiler in
268 no) skipdirs="${skipdirs} ${cross_only}" ;;
55380b08 269esac
6599da04 270
0c639b89
DD		 271# If both --with-headers and --with-libs are specified, default to
272# --without-newlib.
9082a750
MR		 273if test x"${with_headers}" != x && test x"${with_headers}" != xno \
274 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
0c639b89
DD		 275 if test x"${with_newlib}" = x ; then
276 with_newlib=no
277 fi
278fi
279
280# Recognize --with-newlib/--without-newlib.
281case ${with_newlib} in
282 no) skipdirs="${skipdirs} target-newlib" ;;
283 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
284esac
285
85c64bbe
BS		 286AC_ARG_ENABLE(as-accelerator-for,
287[AS_HELP_STRING([--enable-as-accelerator-for=ARG],
288 [build as offload target compiler.
4b4f2e35 289 Specify offload host triple by ARG])])
85c64bbe
BS		 290
291AC_ARG_ENABLE(offload-targets,
292[AS_HELP_STRING([--enable-offload-targets=LIST],
293 [enable offloading to devices from comma-separated LIST of
294 TARGET[=DIR]. Use optional path to find offload target compiler
295 during the build])],
296[
297 if test x"$enable_offload_targets" = x; then
298 AC_MSG_ERROR([no offload targets specified])
299 fi
300], [enable_offload_targets=])
301
21539e2e
MK		 302# Handle --enable-gold, --enable-ld.
303# --disable-gold [--enable-ld]
304# Build only ld. Default option.
9580395f
L		 305# --enable-gold [--enable-ld]
306# Build both gold and ld. Install gold as "ld.gold", install ld
307# as "ld.bfd" and "ld".
308# --enable-gold=default [--enable-ld]
21539e2e
MK		 309# Build both gold and ld. Install gold as "ld.gold" and "ld",
310# install ld as "ld.bfd".
311# --enable-gold[=default] --disable-ld
312# Build only gold, which is then installed as both "ld.gold" and "ld".
313# --enable-gold --enable-ld=default
9580395f
L		 314# Build both gold (installed as "ld.gold") and ld (installed as "ld"
315# and ld.bfd).
21539e2e
MK		 316# In other words, ld is default
317# --enable-gold=default --enable-ld=default
318# Error.
319
320default_ld=
5afab7ad 321AC_ARG_ENABLE(gold,
33e39b66
AS		 322[AS_HELP_STRING([[--enable-gold[=ARG]]],
323 [build gold @<:@ARG={default,yes,no}@:>@])],
5afab7ad
ILT		 324ENABLE_GOLD=$enableval,
325ENABLE_GOLD=no)
21539e2e
MK		 326case "${ENABLE_GOLD}" in
327 yes|default)
38e3d868
RM		 328 # Check for ELF target.
329 is_elf=no
330 case "${target}" in
331 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
0e76460f 332 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
8c6d158a 333 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
ff4b7a7e 334 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
38e3d868
RM		 335 case "${target}" in
336 *-*-linux*aout* | *-*-linux*oldld*)
337 ;;
338 *)
339 is_elf=yes
340 ;;
341 esac
342 esac
343
344 if test "$is_elf" = "yes"; then
345 # Check for target supported by gold.
5afab7ad 346 case "${target}" in
7705dfd1 347 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
1b858e76 348 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
21539e2e
MK		 349 configdirs="$configdirs gold"
350 if test x${ENABLE_GOLD} = xdefault; then
351 default_ld=gold
352 fi
38e3d868 353 ENABLE_GOLD=yes
5afab7ad
ILT		 354 ;;
355 esac
38e3d868
RM		 356 fi
357 ;;
358 no)
359 ;;
360 *)
361 AC_MSG_ERROR([invalid --enable-gold argument])
362 ;;
21539e2e
MK		 363esac
364
365AC_ARG_ENABLE(ld,
33e39b66
AS		 366[AS_HELP_STRING([[--enable-ld[=ARG]]],
367 [build ld @<:@ARG={default,yes,no}@:>@])],
21539e2e
MK		 368ENABLE_LD=$enableval,
369ENABLE_LD=yes)
370
371case "${ENABLE_LD}" in
372 default)
9580395f 373 if test x${default_ld} != x; then
21539e2e
MK		 374 AC_MSG_ERROR([either gold or ld can be the default ld])
375 fi
376 ;;
377 yes)
378 ;;
379 no)
380 if test x${ENABLE_GOLD} != xyes; then
381 AC_MSG_WARN([neither ld nor gold are enabled])
382 fi
383 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
384 ;;
385 *)
386 AC_MSG_ERROR([invalid --enable-ld argument])
387 ;;
388esac
5afab7ad 389
78edb32f
L		 390# PR gas/19109
391# Decide the default method for compressing debug sections.
392# Provide a configure time option to override our default.
393AC_ARG_ENABLE(compressed_debug_sections,
324402a0 394[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
78edb32f
L		 395 [Enable compressed debug sections for gas, gold or ld by
396 default])],
397[
398 if test x"$enable_compressed_debug_sections" = xyes; then
399 AC_MSG_ERROR([no program with compressed debug sections specified])
400 fi
401], [enable_compressed_debug_sections=])
402
6599da04
JM		 403# Configure extra directories which are host specific
404
405case "${host}" in
55380b08 406 *-cygwin*)
4977bab6 407 configdirs="$configdirs libtermcap" ;;
6599da04
JM		 408esac
409
4fab7234
HPN		 410# A target can indicate whether a language isn't supported for some reason.
411# Only spaces may be used in this macro; not newlines or tabs.
412unsupported_languages=
413
6599da04
JM		 414# Remove more programs from consideration, based on the host or
415# target this usually means that a port of the program doesn't
416# exist yet.
417
6599da04 418case "${host}" in
111eeb6e 419 i[[3456789]]86-*-msdosdjgpp*)
c9bdb152 420 noconfigdirs="$noconfigdirs tcl tk itcl"
5d4a5ee6 421 ;;
6599da04
JM		 422esac
423
6de9cd9a 424
87e6d9dc
TB		 425AC_ARG_ENABLE(libquadmath,
426AS_HELP_STRING([--disable-libquadmath],
427 [do not build libquadmath directory]),
428ENABLE_LIBQUADMATH=$enableval,
429ENABLE_LIBQUADMATH=yes)
430if test "${ENABLE_LIBQUADMATH}" = "no" ; then
431 noconfigdirs="$noconfigdirs target-libquadmath"
432fi
433
434
435AC_ARG_ENABLE(libquadmath-support,
436AS_HELP_STRING([--disable-libquadmath-support],
437 [disable libquadmath support for Fortran]),
438ENABLE_LIBQUADMATH_SUPPORT=$enableval,
439ENABLE_LIBQUADMATH_SUPPORT=yes)
440enable_libquadmath_support=
441if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
442 enable_libquadmath_support=no
443fi
444
445
d9cdb878 446AC_ARG_ENABLE(libada,
33e39b66 447[AS_HELP_STRING([--enable-libada], [build libada directory])],
d9cdb878
AC		 448ENABLE_LIBADA=$enableval,
449ENABLE_LIBADA=yes)
450if test "${ENABLE_LIBADA}" != "yes" ; then
5395b47b 451 noconfigdirs="$noconfigdirs gnattools"
d9cdb878
AC		 452fi
453
ef0087a7 454AC_ARG_ENABLE(libssp,
33e39b66 455[AS_HELP_STRING([--enable-libssp], [build libssp directory])],
ef0087a7
KH		 456ENABLE_LIBSSP=$enableval,
457ENABLE_LIBSSP=yes)
ef0087a7 458
2588b26e
RM		 459AC_ARG_ENABLE(libstdcxx,
460AS_HELP_STRING([--disable-libstdcxx],
461 [do not build libstdc++-v3 directory]),
462ENABLE_LIBSTDCXX=$enableval,
463ENABLE_LIBSTDCXX=default)
464[if test "${ENABLE_LIBSTDCXX}" = "no" ; then
1007a55c 465 noconfigdirs="$noconfigdirs target-libstdc++-v3"
2588b26e
RM		 466fi]
467
5f520819
KY		 468# If this is accelerator compiler and its target is intelmic we enable
469# target liboffloadmic by default. If this is compiler with offloading
470# for intelmic we enable host liboffloadmic by default. Otherwise
471# liboffloadmic is disabled by default.
472AC_ARG_ENABLE([liboffloadmic],
473AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
474 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
475[case "$enableval" in
476 no | host | target)
477 enable_liboffloadmic=$enableval ;;
478 *)
479 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
480esac],
4b4f2e35 481[if test x"$enable_as_accelerator_for" != x; then
5f520819
KY		 482 case "${target}" in
483 *-intelmic-* | *-intelmicemul-*)
484 enable_liboffloadmic=target
485 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
486 ;;
487 *)
488 enable_liboffloadmic=no
489 ;;
490 esac
491else
492 case "${enable_offload_targets}" in
493 *-intelmic-* | *-intelmicemul-*)
494 enable_liboffloadmic=host
495 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
496 ;;
497 *)
498 enable_liboffloadmic=no
499 ;;
500 esac
501fi])
502AC_SUBST(extra_liboffloadmic_configure_flags)
503
44a7d18d 504# Enable libgomp by default on hosted POSIX systems, and a few others.
27079765 505if test x$enable_libgomp = x ; then
953ff289 506 case "${target}" in
416ac4d4 507 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
953ff289 508 ;;
8c6d158a 509 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
953ff289 510 ;;
b24513a1 511 *-*-solaris2* | *-*-hpux11*)
953ff289 512 ;;
cac90078 513 *-*-darwin* | *-*-aix*)
953ff289 514 ;;
44a7d18d
TS		 515 nvptx*-*-*)
516 ;;
953ff289
DN		 517 *)
518 noconfigdirs="$noconfigdirs target-libgomp"
519 ;;
520 esac
27079765 521fi
953ff289 522
48310492
RH		 523# Disable libatomic on unsupported systems.
524if test -d ${srcdir}/libatomic; then
525 if test x$enable_libatomic = x; then
526 AC_MSG_CHECKING([for libatomic support])
527 if (srcdir=${srcdir}/libatomic; \
528 . ${srcdir}/configure.tgt; \
529 test -n "$UNSUPPORTED")
530 then
531 AC_MSG_RESULT([no])
532 noconfigdirs="$noconfigdirs target-libatomic"
533 else
534 AC_MSG_RESULT([yes])
535 fi
536 fi
537fi
538
5f520819
KY		 539# Disable liboffloadmic on unsupported systems.
540if test -d ${srcdir}/liboffloadmic; then
541 if test x$enable_liboffloadmic != xno; then
542 AC_MSG_CHECKING([for liboffloadmic support])
543 if (srcdir=${srcdir}/liboffloadmic; \
544 . ${srcdir}/configure.tgt; \
545 test -n "$UNSUPPORTED")
546 then
547 AC_MSG_RESULT([no])
548 noconfigdirs="$noconfigdirs target-liboffloadmic"
549 else
550 AC_MSG_RESULT([yes])
551 fi
552 fi
553fi
554
e948157d
RH		 555# Disable libitm on unsupported systems.
556if test -d ${srcdir}/libitm; then
557 if test x$enable_libitm = x; then
558 AC_MSG_CHECKING([for libitm support])
559 if (srcdir=${srcdir}/libitm; \
560 . ${srcdir}/configure.tgt; \
561 test -n "$UNSUPPORTED")
562 then
563 AC_MSG_RESULT([no])
564 noconfigdirs="$noconfigdirs target-libitm"
565 else
566 AC_MSG_RESULT([yes])
567 fi
568 fi
0a35513e
AH		 569fi
570
93bf5390
RH		 571# Disable libsanitizer on unsupported systems.
572if test -d ${srcdir}/libsanitizer; then
573 if test x$enable_libsanitizer = x; then
574 AC_MSG_CHECKING([for libsanitizer support])
575 if (srcdir=${srcdir}/libsanitizer; \
576 . ${srcdir}/configure.tgt; \
577 test -n "$UNSUPPORTED")
578 then
579 AC_MSG_RESULT([no])
580 noconfigdirs="$noconfigdirs target-libsanitizer"
581 else
582 AC_MSG_RESULT([yes])
583 fi
584 fi
585fi
586
2077db1b
CT		 587# Disable libvtv on unsupported systems.
588if test -d ${srcdir}/libvtv; then
589 if test x$enable_libvtv = x; then
590 AC_MSG_CHECKING([for libvtv support])
591 if (srcdir=${srcdir}/libvtv; \
592 . ${srcdir}/configure.tgt; \
1e74b850 593 test "$VTV_SUPPORTED" != "yes")
2077db1b
CT		 594 then
595 AC_MSG_RESULT([no])
596 noconfigdirs="$noconfigdirs target-libvtv"
597 else
598 AC_MSG_RESULT([yes])
599 fi
600 fi
601fi
602
5373cd33 603
f6a24a94
MJ		 604# Disable libhsail-rt on unsupported systems.
605if test -d ${srcdir}/libhsail-rt; then
606 if test x$enable_libhsail_rt = x; then
607 AC_MSG_CHECKING([for libhsail-rt support])
608 if (srcdir=${srcdir}/libhsail-rt; \
609 . ${srcdir}/configure.tgt; \
610 test -n "$UNSUPPORTED")
611 then
612 AC_MSG_RESULT([no])
613 unsupported_languages="$unsupported_languages brig"
614 # This implicitly disables also target-libhsail-rt as it won't
615 # get added to the build without BRIG FE.
616 else
617 AC_MSG_RESULT([yes])
618 fi
619 fi
620fi
5373cd33
IE		 621
622
d7a29167
DE		 623# Disable libquadmath for some systems.
624case "${target}" in
e7fae550
DE		 625 avr-*-*)
626 noconfigdirs="$noconfigdirs target-libquadmath"
627 ;;
d7a29167
DE		 628 # libquadmath is unused on AIX and libquadmath build process use of
629 # LD_LIBRARY_PATH can break AIX bootstrap.
630 powerpc-*-aix* | rs6000-*-aix*)
631 noconfigdirs="$noconfigdirs target-libquadmath"
632 ;;
633esac
634
1e9e0e23
JM		 635# Disable libssp for some systems.
636case "${target}" in
637 avr-*-*)
b318fb4b 638 # No hosted I/O support.
1e9e0e23
JM		 639 noconfigdirs="$noconfigdirs target-libssp"
640 ;;
641 powerpc-*-aix* | rs6000-*-aix*)
642 noconfigdirs="$noconfigdirs target-libssp"
643 ;;
85b8555e
DD		 644 rl78-*-*)
645 # libssp uses a misaligned load to trigger a fault, but the RL78
646 # doesn't fault for those - instead, it gives a build-time error
647 # for explicit misaligned loads.
648 noconfigdirs="$noconfigdirs target-libssp"
649 ;;
0969ec7d
EB		 650 visium-*-*)
651 # No hosted I/O support.
652 noconfigdirs="$noconfigdirs target-libssp"
653 ;;
1e9e0e23
JM		 654esac
655
1e9e0e23 656# Disable libstdc++-v3 for some systems.
2588b26e
RM		 657# Allow user to override this if they pass --enable-libstdc++-v3
658if test "${ENABLE_LIBSTDCXX}" = "default" ; then
659 case "${target}" in
660 *-*-vxworks*)
661 # VxWorks uses the Dinkumware C++ library.
662 noconfigdirs="$noconfigdirs target-libstdc++-v3"
663 ;;
664 arm*-wince-pe*)
665 # the C++ libraries don't build on top of CE's C libraries
666 noconfigdirs="$noconfigdirs target-libstdc++-v3"
667 ;;
668 avr-*-*)
669 noconfigdirs="$noconfigdirs target-libstdc++-v3"
670 ;;
fef939d6
JB		 671 ft32-*-*)
672 noconfigdirs="$noconfigdirs target-libstdc++-v3"
673 ;;
2588b26e
RM		 674 esac
675fi
1e9e0e23 676
260eedb9
IB		 677# Disable D on systems where it is known to not work.
678# For testing, you can override this with --enable-languages=d.
679case ,${enable_languages}, in
680 *,d,*)
681 ;;
682 *)
683 case "${target}" in
4d024c32 684 *-*-darwin*)
260eedb9
IB		 685 unsupported_languages="$unsupported_languages d"
686 ;;
687 esac
688 ;;
689esac
690
691# Disable libphobos on unsupported systems.
692# For testing, you can override this with --enable-libphobos.
693if test -d ${srcdir}/libphobos; then
694 if test x$enable_libphobos = x; then
695 AC_MSG_CHECKING([for libphobos support])
696 if (srcdir=${srcdir}/libphobos; \
697 . ${srcdir}/configure.tgt; \
7d31d331 698 test "$LIBPHOBOS_SUPPORTED" != "yes")
260eedb9
IB		 699 then
700 AC_MSG_RESULT([no])
701 noconfigdirs="$noconfigdirs target-libphobos"
702 else
703 AC_MSG_RESULT([yes])
704 fi
705 fi
706fi
707
1e9e0e23
JM		 708# Disable Fortran for some systems.
709case "${target}" in
710 mmix-*-*)
711 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
712 unsupported_languages="$unsupported_languages fortran"
713 ;;
714esac
715
012447ea
JJ		 716# Disable libffi for some systems.
717case "${target}" in
718 powerpc-*-darwin*)
719 ;;
720 i[[3456789]]86-*-darwin*)
721 ;;
722 x86_64-*-darwin[[912]]*)
723 ;;
724 *-*-darwin*)
725 noconfigdirs="$noconfigdirs target-libffi"
726 ;;
727 *-*-netware*)
728 noconfigdirs="$noconfigdirs target-libffi"
729 ;;
730 *-*-phoenix*)
731 noconfigdirs="$noconfigdirs target-libffi"
732 ;;
733 *-*-rtems*)
734 noconfigdirs="$noconfigdirs target-libffi"
735 ;;
736 *-*-tpf*)
737 noconfigdirs="$noconfigdirs target-libffi"
738 ;;
739 *-*-uclinux*)
740 noconfigdirs="$noconfigdirs target-libffi"
741 ;;
742 *-*-vxworks*)
743 noconfigdirs="$noconfigdirs target-libffi"
744 ;;
b20e7532
AT		 745 aarch64*-*-freebsd*)
746 noconfigdirs="$noconfigdirs target-libffi"
747 ;;
012447ea
JJ		 748 alpha*-*-*vms*)
749 noconfigdirs="$noconfigdirs target-libffi"
750 ;;
751 arm*-*-freebsd*)
752 noconfigdirs="$noconfigdirs target-libffi"
753 ;;
754 arm-wince-pe)
755 noconfigdirs="$noconfigdirs target-libffi"
756 ;;
757 arm*-*-symbianelf*)
758 noconfigdirs="$noconfigdirs target-libffi"
759 ;;
760 cris-*-* | crisv32-*-*)
761 case "${target}" in
762 *-*-linux*)
763 ;;
764 *) # See PR46792 regarding target-libffi.
765 noconfigdirs="$noconfigdirs target-libffi";;
766 esac
767 ;;
768 hppa*64*-*-hpux*)
769 noconfigdirs="$noconfigdirs target-libffi"
770 ;;
771 hppa*-hp-hpux11*)
772 ;;
773 hppa*-*-hpux*)
774 noconfigdirs="$noconfigdirs target-libffi"
775 ;;
776 ia64*-*-*vms*)
777 noconfigdirs="$noconfigdirs target-libffi"
778 ;;
779 i[[3456789]]86-w64-mingw*)
780 noconfigdirs="$noconfigdirs target-libffi"
781 ;;
782 i[[3456789]]86-*-mingw*)
783 noconfigdirs="$noconfigdirs target-libffi"
784 ;;
785 x86_64-*-mingw*)
786 noconfigdirs="$noconfigdirs target-libffi"
787 ;;
788 mmix-*-*)
789 noconfigdirs="$noconfigdirs target-libffi"
790 ;;
791 powerpc-*-aix*)
012447ea
JJ		 792 ;;
793 rs6000-*-aix*)
012447ea
JJ		 794 ;;
795 ft32-*-*)
796 noconfigdirs="$noconfigdirs target-libffi"
797 ;;
798 *-*-lynxos*)
799 noconfigdirs="$noconfigdirs target-libffi"
800 ;;
801esac
802
803# Disable the go frontend on systems where it is known to not work. Please keep
804# this in sync with contrib/config-list.mk.
805case "${target}" in
5a427c63 806*-*-darwin* | *-*-cygwin* | *-*-mingw*)
012447ea
JJ		 807 unsupported_languages="$unsupported_languages go"
808 ;;
809esac
810
cdbc9e92
ILT		 811# Disable libgo for some systems where it is known to not work.
812# For testing, you can easily override this with --enable-libgo.
813if test x$enable_libgo = x; then
814 case "${target}" in
815 *-*-darwin*)
816 # PR 46986
817 noconfigdirs="$noconfigdirs target-libgo"
818 ;;
819 *-*-cygwin* | *-*-mingw*)
820 noconfigdirs="$noconfigdirs target-libgo"
821 ;;
cdbc9e92
ILT		 822 esac
823fi
824
c03353e2
RIL		 825# Default libgloss CPU subdirectory.
826libgloss_dir="$target_cpu"
6de9cd9a 827
fbcf0dca
JM		 828case "${target}" in
829 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
830 libgloss_dir=wince
831 ;;
4dddfc74
YZ		 832 aarch64*-*-* )
833 libgloss_dir=aarch64
834 ;;
fbcf0dca
JM		 835 arm*-*-*)
836 libgloss_dir=arm
837 ;;
838 cris-*-* | crisv32-*-*)
839 libgloss_dir=cris
840 ;;
841 hppa*-*-*)
842 libgloss_dir=pa
843 ;;
844 i[[3456789]]86-*-*)
845 libgloss_dir=i386
846 ;;
847 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
848 libgloss_dir=m68hc11
849 ;;
850 m68*-*-* | fido-*-*)
851 libgloss_dir=m68k
852 ;;
853 mips*-*-*)
854 libgloss_dir=mips
855 ;;
856 powerpc*-*-*)
857 libgloss_dir=rs6000
858 ;;
859 sparc*-*-*)
860 libgloss_dir=sparc
861 ;;
862esac
863
6a789d5e 864# Disable newlib and libgloss for various target OSes.
6599da04 865case "${target}" in
6a789d5e
JM		 866 alpha*-dec-osf*)
867 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
868 ;;
869 i[[3456789]]86-*-linux*)
870 # This section makes it possible to build newlib natively on linux.
871 # If we are using a cross compiler then don't configure newlib.
872 if test x${is_cross_compiler} != xno ; then
873 noconfigdirs="$noconfigdirs target-newlib"
874 fi
875 noconfigdirs="$noconfigdirs target-libgloss"
876 # If we are not using a cross compiler, do configure newlib.
877 # Note however, that newlib will only be configured in this situation
878 # if the --with-newlib option has been given, because otherwise
879 # 'target-newlib' will appear in skipdirs.
880 ;;
881 i[[3456789]]86-*-rdos*)
882 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
883 ;;
884 sh*-*-pe|mips*-*-pe|arm-wince-pe)
885 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
886 ;;
887 sparc-*-sunos4*)
888 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
889 ;;
890 *-*-aix*)
891 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
892 ;;
893 *-*-beos*)
894 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
895 ;;
3fa03ff9 896 *-*-chorusos)
0036370f 897 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
3fa03ff9 898 ;;
6a789d5e
JM		 899 *-*-dragonfly*)
900 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
901 ;;
902 *-*-freebsd*)
903 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
904 ;;
905 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
906 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
907 ;;
908 *-*-lynxos*)
909 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
910 ;;
911 *-*-mingw*)
912 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
913 ;;
914 *-*-netbsd*)
915 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
916 ;;
917 *-*-netware*)
918 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
919 ;;
920 *-*-tpf*)
921 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
922 ;;
923 *-*-uclinux*)
924 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
925 ;;
926 *-*-vxworks*)
927 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
928 ;;
929esac
930
931case "${target}" in
932 *-*-chorusos)
933 ;;
3be96231
TG		 934 aarch64-*-darwin*)
935 noconfigdirs="$noconfigdirs ld gas gdb gprof"
936 noconfigdirs="$noconfigdirs sim target-rda"
937 ;;
7431c1a1
AS		 938 amdgcn*-*-*)
939 ;;
3be96231
TG		 940 arm-*-darwin*)
941 noconfigdirs="$noconfigdirs ld gas gdb gprof"
942 noconfigdirs="$noconfigdirs sim target-rda"
943 ;;
75eeae1a 944 powerpc-*-darwin*)
e1514c3f 945 noconfigdirs="$noconfigdirs ld gas gdb gprof"
9c8f9ec2 946 noconfigdirs="$noconfigdirs sim target-rda"
940cde4d 947 ;;
354ebf88
RW		 948 i[[3456789]]86-*-darwin*)
949 noconfigdirs="$noconfigdirs ld gprof"
950 noconfigdirs="$noconfigdirs sim target-rda"
951 ;;
952 x86_64-*-darwin[[912]]*)
0db3a858
TG		 953 noconfigdirs="$noconfigdirs ld gas gprof"
954 noconfigdirs="$noconfigdirs sim target-rda"
955 ;;
42c1cd8a
AT		 956 *-*-darwin*)
957 noconfigdirs="$noconfigdirs ld gas gdb gprof"
958 noconfigdirs="$noconfigdirs sim target-rda"
42c1cd8a 959 ;;
8c6d158a 960 *-*-dragonfly*)
8c6d158a 961 ;;
c3f84f61 962 *-*-freebsd*)
6de9cd9a 963 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
96b32c86 964 && ! test -d ${srcdir}/gmp \
6de9cd9a
DN		 965 && test -f /usr/local/include/gmp.h; then
966 with_gmp=/usr/local
967 fi
6de9cd9a 968 ;;
ef4e7569
US		 969 *-*-kaos*)
970 # Remove unsupported stuff on all kaOS configurations.
ef4e7569
US		 971 noconfigdirs="$noconfigdirs target-libgloss"
972 ;;
51584787 973 *-*-netbsd*)
51584787 974 ;;
61fec9ff 975 *-*-netware*)
6599da04 976 ;;
fd6487af
JS		 977 *-*-phoenix*)
978 noconfigdirs="$noconfigdirs target-libgloss"
979 ;;
3fbc0b70 980 *-*-rtems*)
2909494b 981 noconfigdirs="$noconfigdirs target-libgloss"
3fbc0b70 982 ;;
a8ba31f2
EC		 983 # The tpf target doesn't support gdb yet.
984 *-*-tpf*)
6a789d5e 985 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
a8ba31f2 986 ;;
5785c0ed 987 *-*-uclinux*)
6a789d5e 988 noconfigdirs="$noconfigdirs target-rda"
5785c0ed 989 ;;
6599da04 990 *-*-vxworks*)
6599da04 991 ;;
b104e095 992 alpha*-dec-osf*)
603606e7 993 # ld works, but does not support shared libraries.
6599da04 994 # gas doesn't generate exception information.
6a789d5e 995 noconfigdirs="$noconfigdirs gas ld"
6599da04
JM		 996 ;;
997 alpha*-*-*vms*)
2909494b 998 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
6599da04
JM		 999 ;;
1000 alpha*-*-*)
1001 # newlib is not 64 bit ready
2909494b 1002 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1003 ;;
3a685f6f 1004 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
b4f96efe 1005 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
3a685f6f 1006 ;;
2fd88f4f
AK		 1007 arc*-*-*)
1008 noconfigdirs="$noconfigdirs sim"
1009 ;;
6599da04 1010 arm-*-pe*)
2909494b 1011 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1012 ;;
5d4a5ee6 1013 arm-*-riscix*)
0036370f 1014 noconfigdirs="$noconfigdirs ld target-libgloss"
5d4a5ee6 1015 ;;
b588ae30
GJL		 1016 avr-*-*)
1017 if test x${with_avrlibc} != xno; then
1018 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1019 fi
1020 ;;
a5a438f5 1021 c4x-*-* | tic4x-*-*)
0036370f 1022 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1023 ;;
0036370f
JM		 1024 tic54x-*-*)
1025 noconfigdirs="$noconfigdirs target-libgloss gdb"
ab50d72b 1026 ;;
6599da04 1027 d10v-*-*)
0036370f 1028 noconfigdirs="$noconfigdirs target-libgloss"
d207ebef
JM		 1029 ;;
1030 d30v-*-*)
0036370f 1031 noconfigdirs="$noconfigdirs gdb"
6599da04 1032 ;;
09b5f8bf 1033 fr30-*-elf*)
2909494b 1034 noconfigdirs="$noconfigdirs gdb"
09b5f8bf 1035 ;;
a05c2c75
L		 1036 ft32-*-*)
1037 noconfigdirs="$noconfigdirs target-rda gprof"
1038 ;;
55f2d967 1039 moxie-*-*)
a05c2c75 1040 noconfigdirs="$noconfigdirs"
55f2d967 1041 ;;
ab50d72b 1042 h8300*-*-*)
2909494b 1043 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1044 ;;
6599da04 1045 h8500-*-*)
0036370f 1046 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1047 ;;
9d069a4f 1048 hppa1.1-*-osf* | hppa1.1-*-bsd* )
9d069a4f 1049 ;;
a05c2c75
L		 1050 hppa*64*-*-hpux*)
1051 noconfigdirs="$noconfigdirs gdb"
1052 ;;
1053 hppa*-*-hpux11*)
1054 noconfigdirs="$noconfigdirs gdb ld"
1055 ;;
4569f85e 1056 hppa*64*-*-linux*)
cdbff0ab 1057 ;;
56f8587a 1058 hppa*-*-linux*)
3e732ba0 1059 ;;
6599da04 1060 hppa*-*-*elf* | \
bae29210 1061 hppa*-*-lites* | \
66350331 1062 hppa*-*-openbsd* | \
bae29210 1063 hppa*64*-*-*)
6599da04 1064 ;;
c03353e2 1065 hppa*-*-pro*)
c03353e2 1066 ;;
6599da04 1067 hppa*-*-*)
2909494b 1068 noconfigdirs="$noconfigdirs ld"
d207ebef 1069 ;;
fb87ad5d 1070 i960-*-*)
0036370f 1071 noconfigdirs="$noconfigdirs gdb"
fb87ad5d 1072 ;;
d207ebef
JM		 1073 ia64*-*-elf*)
1074 # No gdb support yet.
1bcce263 1075 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
d207ebef 1076 ;;
ab50d72b 1077 ia64*-**-hpux*)
5a2931d1 1078 # No ld support yet.
a05c2c75 1079 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
ab50d72b 1080 ;;
52535a64 1081 ia64*-*-*vms*)
091fe9ca
TG		 1082 # No ld support yet.
1083 noconfigdirs="$noconfigdirs libgui itcl ld"
52535a64 1084 ;;
ef4c4300 1085 i[[3456789]]86-w64-mingw*)
ef4c4300
KT		 1086 ;;
1087 i[[3456789]]86-*-mingw*)
b91f0a41 1088 target_configdirs="$target_configdirs target-winsup"
5d571eaa 1089 ;;
d207ebef
JM		 1090 *-*-cygwin*)
1091 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1bcce263 1092 noconfigdirs="$noconfigdirs target-libgloss"
801e2270 1093 # always build newlib if winsup directory is present.
b91f0a41 1094 if test -d "$srcdir/winsup/cygwin"; then
801e2270 1095 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
c8e6cd41 1096 elif test -d "$srcdir/newlib"; then
b91f0a41 1097 echo "Warning: winsup/cygwin is missing so newlib can't be built."
801e2270 1098 fi
5d571eaa 1099 ;;
f2a0e225 1100 i[[3456789]]86-*-pe)
ebb9f8b0 1101 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1102 ;;
f2a0e225 1103 i[[3456789]]86-*-sco3.2v5*)
6599da04
JM		 1104 # The linker does not yet know about weak symbols in COFF,
1105 # and is not configured to handle mixed ELF and COFF.
0036370f 1106 noconfigdirs="$noconfigdirs ld target-libgloss"
6599da04 1107 ;;
f2a0e225 1108 i[[3456789]]86-*-sco*)
0036370f 1109 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1110 ;;
fbdd5d87 1111 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
7c01b2b5 1112 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1113 ;;
f2a0e225 1114 i[[3456789]]86-*-sysv4*)
0036370f 1115 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1116 ;;
f2a0e225 1117 i[[3456789]]86-*-beos*)
6a789d5e 1118 noconfigdirs="$noconfigdirs gdb"
3aa83176 1119 ;;
d1f8db0c 1120 i[[3456789]]86-*-rdos*)
6a789d5e 1121 noconfigdirs="$noconfigdirs gdb"
c03353e2 1122 ;;
d344dce9 1123 mmix-*-*)
2909494b 1124 noconfigdirs="$noconfigdirs gdb"
d344dce9 1125 ;;
ab34901f 1126 mt-*-*)
79dd769c
AH		 1127 noconfigdirs="$noconfigdirs sim"
1128 ;;
58b40a67
FT		 1129 nfp-*-*)
1130 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1131 noconfigdirs="$noconfigdirs $target_libraries"
1132 ;;
6599da04
JM		 1133 powerpc-*-aix*)
1134 # copied from rs6000-*-* entry
6a789d5e 1135 noconfigdirs="$noconfigdirs gprof"
6599da04 1136 ;;
4569f85e 1137 powerpc*-*-winnt* | powerpc*-*-pe*)
6599da04 1138 target_configdirs="$target_configdirs target-winsup"
0036370f 1139 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
6599da04
JM		 1140 # always build newlib.
1141 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1142 ;;
1143 # This is temporary until we can link against shared libraries
1144 powerpcle-*-solaris*)
0036370f 1145 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
6599da04 1146 ;;
0da3b5a7 1147 powerpc-*-beos*)
6a789d5e 1148 noconfigdirs="$noconfigdirs gdb"
d207ebef 1149 ;;
6599da04 1150 rs6000-*-lynxos*)
6a789d5e 1151 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1152 ;;
1153 rs6000-*-aix*)
6a789d5e 1154 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1155 ;;
1156 rs6000-*-*)
2909494b 1157 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1158 ;;
1159 m68k-apollo-*)
0036370f 1160 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
6599da04 1161 ;;
ca9fe997 1162 microblaze*)
2909494b 1163 noconfigdirs="$noconfigdirs gprof"
ca9fe997 1164 ;;
74ae587e 1165 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
d9dced13
RS		 1166 if test x$with_newlib = xyes; then
1167 noconfigdirs="$noconfigdirs gprof"
1168 fi
d9dced13 1169 ;;
6599da04 1170 mips*-*-irix5*)
0036370f 1171 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04
JM		 1172 ;;
1173 mips*-*-irix6*)
2909494b 1174 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1175 ;;
6599da04 1176 mips*-*-bsd*)
bc98bcc4 1177 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
6599da04 1178 ;;
9bec4bf0 1179 mips*-*-linux*)
9bec4bf0 1180 ;;
bc98bcc4
JBG		 1181 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1182 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1183 noconfigdirs="$noconfigdirs ld gas gprof"
1184 ;;
6599da04 1185 mips*-*-*)
2909494b 1186 noconfigdirs="$noconfigdirs gprof"
6599da04 1187 ;;
738f2522 1188 nvptx*-*-*)
738f2522
BS		 1189 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1190 ;;
bc6d9014 1191 sh-*-*)
ea2002ba
CB		 1192 case "${target}" in
1193 sh*-*-elf)
2909494b 1194 ;;
ea2002ba 1195 *)
2909494b 1196 noconfigdirs="$noconfigdirs target-libgloss" ;;
ea2002ba 1197 esac
6599da04
JM		 1198 ;;
1199 sparc-*-sunos4*)
6a789d5e 1200 if test x${is_cross_compiler} = xno ; then
6599da04
JM		 1201 use_gnu_ld=no
1202 fi
1203 ;;
b42f0d7e 1204 tic6x-*-*)
0d557ff8 1205 noconfigdirs="$noconfigdirs sim"
b42f0d7e 1206 ;;
341c653c 1207 tilepro*-*-* | tilegx*-*-*)
db1d217c
WL		 1208 noconfigdirs="$noconfigdirs sim"
1209 ;;
6599da04 1210 v810-*-*)
0036370f 1211 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
6599da04
JM		 1212 ;;
1213 vax-*-*)
2909494b 1214 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1215 ;;
1fc1d82e
MR		 1216 wasm32-*-*)
1217 noconfigdirs="$noconfigdirs ld"
1218 ;;
6599da04
JM		 1219esac
1220
6599da04
JM		 1221# If we aren't building newlib, then don't build libgloss, since libgloss
1222# depends upon some newlib header files.
1223case "${noconfigdirs}" in
1224 *target-libgloss*) ;;
1225 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
55380b08 1226esac
6599da04 1227
55380b08 1228# Work in distributions that contain no compiler tools, like Autoconf.
671aa708 1229host_makefile_frag=/dev/null
55380b08
NN		 1230if test -d ${srcdir}/config ; then
1231case "${host}" in
f2a0e225 1232 i[[3456789]]86-*-msdosdjgpp*)
55380b08
NN		 1233 host_makefile_frag="config/mh-djgpp"
1234 ;;
1235 *-cygwin*)
2a79c47f 1236 ACX_CHECK_CYGWIN_CAT_WORKS
55380b08
NN		 1237 host_makefile_frag="config/mh-cygwin"
1238 ;;
c53a18d3 1239 *-mingw*)
1f5a6b84 1240 host_makefile_frag="config/mh-mingw"
738a52d3 1241 ;;
cabb9d59 1242 alpha*-linux*)
13be44ed
UB		 1243 host_makefile_frag="config/mh-alpha-linux"
1244 ;;
00afcaa0 1245 hppa*-hp-hpux10*)
00afcaa0 1246 host_makefile_frag="config/mh-pa-hpux10"
55380b08 1247 ;;
111eeb6e 1248 hppa*-hp-hpux*)
00afcaa0
PB		 1249 host_makefile_frag="config/mh-pa"
1250 ;;
1251 hppa*-*)
1252 host_makefile_frag="config/mh-pa"
1253 ;;
d8ed14ce
IS		 1254 *-*-darwin*)
1255 host_makefile_frag="config/mh-darwin"
be8fff81 1256 ;;
d19bca38
PB		 1257 powerpc-*-aix*)
1258 host_makefile_frag="config/mh-ppc-aix"
1259 ;;
1260 rs6000-*-aix*)
1261 host_makefile_frag="config/mh-ppc-aix"
1262 ;;
55380b08
NN		 1263esac
1264fi
1265
e4c9c075 1266if test "${build}" != "${host}" ; then
0999159b
PB		 1267 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1268 AS_FOR_BUILD=${AS_FOR_BUILD-as}
e4c9c075 1269 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
0999159b 1270 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
0999159b 1271 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
632e2a07 1272 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
b4c522fa 1273 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
0999159b
PB		 1274 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1275 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1276 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1277 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1278 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1279 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
e4c9c075 1280else
0999159b
PB		 1281 AR_FOR_BUILD="\$(AR)"
1282 AS_FOR_BUILD="\$(AS)"
e4c9c075 1283 CC_FOR_BUILD="\$(CC)"
0999159b 1284 CXX_FOR_BUILD="\$(CXX)"
0999159b 1285 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
632e2a07 1286 GOC_FOR_BUILD="\$(GOC)"
b4c522fa 1287 GDC_FOR_BUILD="\$(GDC)"
0999159b
PB		 1288 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1289 LD_FOR_BUILD="\$(LD)"
1290 NM_FOR_BUILD="\$(NM)"
1291 RANLIB_FOR_BUILD="\$(RANLIB)"
1292 WINDRES_FOR_BUILD="\$(WINDRES)"
1293 WINDMC_FOR_BUILD="\$(WINDMC)"
c3a86da9 1294fi
e4c9c075 1295
c3a86da9
DJ		 1296AC_PROG_CC
1297AC_PROG_CXX
1298
1299# We must set the default linker to the linker used by gcc for the correct
1300# operation of libtool. If LD is not defined and we are using gcc, try to
1301# set the LD default to the ld used by gcc.
1302if test -z "$LD"; then
1303 if test "$GCC" = yes; then
1304 case $build in
1305 *-*-mingw*)
1306 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1307 *)
1308 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1309 esac
1310 case $gcc_prog_ld in
1311 # Accept absolute paths.
1312 [[\\/]* | [A-Za-z]:[\\/]*)]
1313 LD="$gcc_prog_ld" ;;
1314 esac
1315 fi
e4c9c075
PB		 1316fi
1317
0b21f5d3
EB		 1318# Check whether -static-libstdc++ -static-libgcc is supported.
1319have_static_libs=no
1320if test "$GCC" = yes; then
1321 saved_LDFLAGS="$LDFLAGS"
1322
1323 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1324 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1325 AC_LANG_PUSH(C++)
22e05272 1326 AC_LINK_IFELSE([AC_LANG_SOURCE([
0d6414b2
EB		 1327#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1328#error -static-libstdc++ not implemented
1329#endif
22e05272 1330int main() {}])],
0b21f5d3
EB		 1331 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1332 [AC_MSG_RESULT([no])])
1333 AC_LANG_POP(C++)
1334
1335 LDFLAGS="$saved_LDFLAGS"
1336fi
1337
e4c9c075 1338ACX_PROG_GNAT
a76494aa 1339ACX_PROG_CMP_IGNORE_INITIAL
e4c9c075 1340
ff3ac0f4
ILT		 1341AC_ARG_ENABLE([bootstrap],
1342[AS_HELP_STRING([--enable-bootstrap],
1343 [enable bootstrapping @<:@yes if native build@:>@])],,
1344enable_bootstrap=default)
1345
1346# Issue errors and warnings for invalid/strange bootstrap combinations.
bf03b9ff
ILT		 1347if test -r $srcdir/gcc/configure; then
1348 have_compiler=yes
1349else
1350 have_compiler=no
1351fi
ff3ac0f4
ILT		 1352
1353case "$have_compiler:$host:$target:$enable_bootstrap" in
1354 *:*:*:no) ;;
1355
1356 # Default behavior. Enable bootstrap if we have a compiler
1357 # and we are in a native configuration.
1358 yes:$build:$build:default)
1359 enable_bootstrap=yes ;;
1360
1361 *:*:*:default)
1362 enable_bootstrap=no ;;
1363
1364 # We have a compiler and we are in a native configuration, bootstrap is ok
1365 yes:$build:$build:yes)
1366 ;;
1367
1368 # Other configurations, but we have a compiler. Assume the user knows
1369 # what he's doing.
1370 yes:*:*:yes)
1371 AC_MSG_WARN([trying to bootstrap a cross compiler])
1372 ;;
1373
1374 # No compiler: if they passed --enable-bootstrap explicitly, fail
1375 no:*:*:yes)
1376 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1377
1378 # Fail if wrong command line
1379 *)
1380 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1381 ;;
1382esac
1383
46070488
JM		 1384# When bootstrapping with GCC, build stage 1 in C++98 mode to ensure that a
1385# C++98 compiler can still start the bootstrap.
1386if test "$enable_bootstrap:$GXX" = "yes:yes"; then
8ca528d9 1387 CXX="$CXX -std=gnu++98"
46070488
JM		 1388fi
1389
592c90ff
KG		 1390# Used for setting $lt_cv_objdir
1391_LT_CHECK_OBJDIR
1392
acd26225 1393# Check for GMP, MPFR and MPC
3a5729ea 1394gmplibs="-lmpc -lmpfr -lgmp"
6de9cd9a 1395gmpinc=
e69bf64b 1396have_gmp=no
acd26225
KG		 1397
1398# Specify a location for mpc
1399# check for this first so it ends up on the link line before mpfr.
33e39b66
AS		 1400AC_ARG_WITH(mpc,
1401[AS_HELP_STRING([--with-mpc=PATH],
1402 [specify prefix directory for installed MPC package.
1403 Equivalent to --with-mpc-include=PATH/include
1404 plus --with-mpc-lib=PATH/lib])])
1405AC_ARG_WITH(mpc-include,
1406[AS_HELP_STRING([--with-mpc-include=PATH],
1407 [specify directory for installed MPC include files])])
1408AC_ARG_WITH(mpc-lib,
1409[AS_HELP_STRING([--with-mpc-lib=PATH],
1410 [specify directory for the installed MPC library])])
acd26225
KG		 1411
1412if test "x$with_mpc" != x; then
3a5729ea
KG		 1413 gmplibs="-L$with_mpc/lib $gmplibs"
1414 gmpinc="-I$with_mpc/include $gmpinc"
acd26225
KG		 1415fi
1416if test "x$with_mpc_include" != x; then
3a5729ea 1417 gmpinc="-I$with_mpc_include $gmpinc"
acd26225
KG		 1418fi
1419if test "x$with_mpc_lib" != x; then
3a5729ea 1420 gmplibs="-L$with_mpc_lib $gmplibs"
acd26225
KG		 1421fi
1422if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
592c90ff 1423 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
3a5729ea 1424 gmpinc='-I$$s/mpc/src '"$gmpinc"
acd26225
KG		 1425 # Do not test the mpc version. Assume that it is sufficient, since
1426 # it is in the source tree, and the library has not been built yet
1427 # but it would be included on the link line in the version check below
1428 # hence making the test fail.
3a5729ea 1429 have_gmp=yes
acd26225 1430fi
e69bf64b 1431
bebf829d
PB		 1432# Specify a location for mpfr
1433# check for this first so it ends up on the link line before gmp.
33e39b66
AS		 1434AC_ARG_WITH(mpfr-dir,
1435[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1436[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1437Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1438
1439AC_ARG_WITH(mpfr,
1440[AS_HELP_STRING([--with-mpfr=PATH],
1441 [specify prefix directory for installed MPFR package.
1442 Equivalent to --with-mpfr-include=PATH/include
1443 plus --with-mpfr-lib=PATH/lib])])
1444AC_ARG_WITH(mpfr-include,
1445[AS_HELP_STRING([--with-mpfr-include=PATH],
1446 [specify directory for installed MPFR include files])])
1447AC_ARG_WITH(mpfr-lib,
1448[AS_HELP_STRING([--with-mpfr-lib=PATH],
1449 [specify directory for the installed MPFR library])])
bebf829d
PB		 1450
1451if test "x$with_mpfr" != x; then
1452 gmplibs="-L$with_mpfr/lib $gmplibs"
3a5729ea 1453 gmpinc="-I$with_mpfr/include $gmpinc"
bebf829d 1454fi
8a877c9c 1455if test "x$with_mpfr_include" != x; then
3a5729ea 1456 gmpinc="-I$with_mpfr_include $gmpinc"
8a877c9c
KG		 1457fi
1458if test "x$with_mpfr_lib" != x; then
1459 gmplibs="-L$with_mpfr_lib $gmplibs"
1460fi
e69bf64b 1461if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
8f3675f8
MR		 1462 # MPFR v3.1.0 moved the sources into a src sub-directory.
1463 if ! test -d ${srcdir}/mpfr/src; then
1464 AC_MSG_ERROR([dnl
1465Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1466 fi
00f35794
BE		 1467 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1468 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1469 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
e69bf64b
PB		 1470 # Do not test the mpfr version. Assume that it is sufficient, since
1471 # it is in the source tree, and the library has not been built yet
1472 # but it would be included on the link line in the version check below
1473 # hence making the test fail.
1474 have_gmp=yes
1475fi
bebf829d 1476
6de9cd9a 1477# Specify a location for gmp
33e39b66
AS		 1478AC_ARG_WITH(gmp-dir,
1479[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1480[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1481Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1482
1483AC_ARG_WITH(gmp,
1484[AS_HELP_STRING([--with-gmp=PATH],
1485 [specify prefix directory for the installed GMP package.
1486 Equivalent to --with-gmp-include=PATH/include
1487 plus --with-gmp-lib=PATH/lib])])
1488AC_ARG_WITH(gmp-include,
1489[AS_HELP_STRING([--with-gmp-include=PATH],
1490 [specify directory for installed GMP include files])])
1491AC_ARG_WITH(gmp-lib,
1492[AS_HELP_STRING([--with-gmp-lib=PATH],
1493 [specify directory for the installed GMP library])])
6de9cd9a 1494
6de9cd9a 1495
bebf829d
PB		 1496if test "x$with_gmp" != x; then
1497 gmplibs="-L$with_gmp/lib $gmplibs"
1498 gmpinc="-I$with_gmp/include $gmpinc"
6de9cd9a 1499fi
8a877c9c
KG		 1500if test "x$with_gmp_include" != x; then
1501 gmpinc="-I$with_gmp_include $gmpinc"
1502fi
1503if test "x$with_gmp_lib" != x; then
1504 gmplibs="-L$with_gmp_lib $gmplibs"
1505fi
e69bf64b 1506if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
592c90ff 1507 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
e69bf64b 1508 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
9183bdcf 1509 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
592c90ff 1510 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
0ff2d841 1511 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
e69bf64b
PB		 1512 # Do not test the gmp version. Assume that it is sufficient, since
1513 # it is in the source tree, and the library has not been built yet
1514 # but it would be included on the link line in the version check below
1515 # hence making the test fail.
1516 have_gmp=yes
1517fi
6de9cd9a 1518
d943d7c4 1519if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
e69bf64b
PB		 1520 have_gmp=yes
1521 saved_CFLAGS="$CFLAGS"
1522 CFLAGS="$CFLAGS $gmpinc"
362c6d2f
KG		 1523 # Check for the recommended and required versions of GMP.
1524 AC_MSG_CHECKING([for the correct version of gmp.h])
e69bf64b 1525 AC_TRY_COMPILE([#include "gmp.h"],[
362c6d2f
KG		 1526 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1527 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
385c0681 1528 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
e48d66a9 1529 choke me
e69bf64b 1530 #endif
e8fd69bb 1531 ], [AC_TRY_COMPILE([#include <gmp.h>],[
362c6d2f
KG		 1532 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1533 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1534 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1535 choke me
1536 #endif
e8fd69bb 1537 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1538 [AC_MSG_RESULT([no]); have_gmp=no])
e69bf64b 1539
acd26225 1540 # If we have GMP, check the MPFR version.
e69bf64b 1541 if test x"$have_gmp" = xyes; then
362c6d2f
KG		 1542 # Check for the recommended and required versions of MPFR.
1543 AC_MSG_CHECKING([for the correct version of mpfr.h])
acd26225 1544 AC_TRY_COMPILE([#include <gmp.h>
e69bf64b 1545 #include <mpfr.h>],[
f7d6bc01 1546 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
e69bf64b
PB		 1547 choke me
1548 #endif
e8fd69bb 1549 ], [AC_TRY_COMPILE([#include <gmp.h>
acd26225 1550 #include <mpfr.h>],[
362c6d2f 1551 #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
acd26225
KG		 1552 choke me
1553 #endif
e8fd69bb 1554 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
acd26225
KG		 1555 [AC_MSG_RESULT([no]); have_gmp=no])
1556 fi
1557
1558 # Check for the MPC header version.
3a5729ea 1559 if test x"$have_gmp" = xyes ; then
362c6d2f 1560 # Check for the recommended and required versions of MPC.
acd26225
KG		 1561 AC_MSG_CHECKING([for the correct version of mpc.h])
1562 AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f 1563 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
acd26225
KG		 1564 choke me
1565 #endif
e8fd69bb 1566 ], [AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f
KG		 1567 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1568 choke me
1569 #endif
e8fd69bb 1570 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1571 [AC_MSG_RESULT([no]); have_gmp=no])
acd26225
KG		 1572 fi
1573
1574 # Now check the MPFR library.
1575 if test x"$have_gmp" = xyes; then
1576 saved_LIBS="$LIBS"
1577 LIBS="$LIBS $gmplibs"
3a5729ea
KG		 1578 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1579 AC_TRY_LINK([#include <mpc.h>],[
54e433bc
MK		 1580 mpfr_t n;
1581 mpfr_t x;
3a5729ea 1582 mpc_t c;
e69bf64b 1583 int t;
54e433bc
MK		 1584 mpfr_init (n);
1585 mpfr_init (x);
e69bf64b
PB		 1586 mpfr_atan2 (n, n, x, GMP_RNDN);
1587 mpfr_erfc (n, x, GMP_RNDN);
1588 mpfr_subnormalize (x, t, GMP_RNDN);
3a5729ea
KG		 1589 mpfr_clear(n);
1590 mpfr_clear(x);
1591 mpc_init2 (c, 53);
1592 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1593 mpc_cosh (c, c, MPC_RNDNN);
1594 mpc_pow (c, c, c, MPC_RNDNN);
1595 mpc_acosh (c, c, MPC_RNDNN);
1596 mpc_clear (c);
acd26225
KG		 1597 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1598 LIBS="$saved_LIBS"
e69bf64b 1599 fi
acd26225 1600
e69bf64b 1601 CFLAGS="$saved_CFLAGS"
6de9cd9a 1602
362c6d2f
KG		 1603# The library versions listed in the error message below should match
1604# the HARD-minimums enforced above.
e69bf64b 1605 if test x$have_gmp != xyes; then
f7d6bc01 1606 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
3a5729ea
KG		 1607Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1608their locations. Source code for these libraries can be found at
1609their respective hosting sites as well as at
1610ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
1611http://gcc.gnu.org/install/prerequisites.html for additional info. If
1612you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1613make sure that you have installed both the libraries and the header
1614files. They may be located in separate packages.])
e69bf64b 1615 fi
70ec446f
KG		 1616fi
1617
acd26225 1618# Flags needed for both GMP, MPFR and/or MPC.
6de9cd9a
DN		 1619AC_SUBST(gmplibs)
1620AC_SUBST(gmpinc)
9e3eba15 1621AC_SUBST(extra_mpfr_configure_flags)
acd26225
KG		 1622AC_SUBST(extra_mpc_gmp_configure_flags)
1623AC_SUBST(extra_mpc_mpfr_configure_flags)
0ff2d841 1624AC_SUBST(extra_isl_gmp_configure_flags)
6de9cd9a 1625
00020c16
ILT		 1626# Libraries to use for stage1 or when not bootstrapping.
1627AC_ARG_WITH(stage1-libs,
33e39b66 1628[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
00020c16
ILT		 1629[if test "$withval" = "no" -o "$withval" = "yes"; then
1630 stage1_libs=
1631 else
1632 stage1_libs=$withval
1633 fi],
5dc85f7e 1634[stage1_libs=])
00020c16
ILT		 1635AC_SUBST(stage1_libs)
1636
0b21f5d3
EB		 1637# Linker flags to use for stage1 or when not bootstrapping.
1638AC_ARG_WITH(stage1-ldflags,
1639[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1640[if test "$withval" = "no" -o "$withval" = "yes"; then
1641 stage1_ldflags=
1642 else
1643 stage1_ldflags=$withval
1644 fi],
1645[stage1_ldflags=
1646 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1647 # if supported. But if the user explicitly specified the libraries to use,
1648 # trust that they are doing what they want.
1649 if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
1650 stage1_ldflags="-static-libstdc++ -static-libgcc"
1651 fi])
1652AC_SUBST(stage1_ldflags)
1653
5dc85f7e 1654# Libraries to use for stage2 and later builds.
00020c16 1655AC_ARG_WITH(boot-libs,
33e39b66 1656[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
00020c16
ILT		 1657[if test "$withval" = "no" -o "$withval" = "yes"; then
1658 poststage1_libs=
1659 else
e90e6bd7 1660 poststage1_libs=$withval
00020c16 1661 fi],
5dc85f7e 1662[poststage1_libs=])
00020c16
ILT		 1663AC_SUBST(poststage1_libs)
1664
ed2eaa9f
ILT		 1665# Linker flags to use for stage2 and later builds.
1666AC_ARG_WITH(boot-ldflags,
33e39b66
AS		 1667[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1668 [linker flags for stage2 and later])],
ed2eaa9f
ILT		 1669[if test "$withval" = "no" -o "$withval" = "yes"; then
1670 poststage1_ldflags=
1671 else
1672 poststage1_ldflags=$withval
1673 fi],
1674[poststage1_ldflags=
bec93d73
ILT		 1675 # In stages 2 and 3, default to linking libstdc++ and libgcc
1676 # statically. But if the user explicitly specified the libraries to
1677 # use, trust that they are doing what they want.
1678 if test "$poststage1_libs" = ""; then
ed2eaa9f
ILT		 1679 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1680 fi])
1681AC_SUBST(poststage1_ldflags)
1682
e357a5e0 1683# GCC GRAPHITE dependency isl.
4a9bb2aa 1684# Basic setup is inlined here, actual checks are in config/isl.m4
625afa23 1685
625afa23
RG		 1686AC_ARG_WITH(isl,
1687 [AS_HELP_STRING(
1688 [--with-isl=PATH],
e357a5e0 1689 [Specify prefix directory for the installed isl package.
625afa23
RG		 1690 Equivalent to --with-isl-include=PATH/include
1691 plus --with-isl-lib=PATH/lib])])
1692
eae1a5d4 1693# Treat --without-isl as a request to disable
625afa23 1694# GRAPHITE support and skip all following checks.
eae1a5d4 1695if test "x$with_isl" != "xno"; then
e357a5e0 1696 # Check for isl
625afa23
RG		 1697 dnl Provide configure switches and initialize islinc & isllibs
1698 dnl with user input.
1699 ISL_INIT_FLAGS
e357a5e0 1700 dnl The versions of isl that work for Graphite
e0c0c325 1701 ISL_CHECK_VERSION()
e357a5e0 1702 dnl Only execute fail-action, if isl has been requested.
33ad93b9 1703 ISL_IF_FAILED([
e357a5e0 1704 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
f8bf9252 1705fi
f8bf9252 1706
e357a5e0 1707# If the isl check failed, disable builds of in-tree variant of isl
625afa23 1708if test "x$with_isl" = xno ||
625afa23 1709 test "x$gcc_cv_isl" = xno; then
4a9bb2aa 1710 noconfigdirs="$noconfigdirs isl"
625afa23 1711 islinc=
eae1a5d4
RG		 1712fi
1713
1714AC_SUBST(isllibs)
625afa23 1715AC_SUBST(islinc)
625afa23 1716
d7f09764
DN		 1717# Check for LTO support.
1718AC_ARG_ENABLE(lto,
33e39b66 1719[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
d7f09764
DN		 1720enable_lto=$enableval,
1721enable_lto=yes; default_enable_lto=yes)
1722
48215350
DK		 1723ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1724 build_lto_plugin=yes
1725],[if test x"$default_enable_lto" = x"yes" ; then
bb79486c 1726 case $target in
deeba76a 1727 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
48215350 1728 # On other non-ELF platforms, LTO has yet to be validated.
bb79486c
JH		 1729 *) enable_lto=no ;;
1730 esac
3bec79c5 1731 else
db50fe7d
IS		 1732 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1733 # It would also be nice to check the binutils support, but we don't
3bec79c5
DK		 1734 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1735 # warn during gcc/ subconfigure; unless you're bootstrapping with
1736 # -flto it won't be needed until after installation anyway.
1737 case $target in
9e530bcd 1738 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
3bec79c5
DK		 1739 *) if test x"$enable_lto" = x"yes"; then
1740 AC_MSG_ERROR([LTO support is not enabled for this target.])
1741 fi
1742 ;;
1743 esac
1744 fi
1cd0b716 1745 # Among non-ELF, only Windows platforms support the lto-plugin so far.
48215350 1746 # Build it unless LTO was explicitly disabled.
1cd0b716 1747 case $target in
48215350 1748 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1cd0b716
DK		 1749 *) ;;
1750 esac
48215350 1751])
d7f09764 1752
45b3824d
TS		 1753AC_ARG_ENABLE(linker-plugin-configure-flags,
1754 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1755 [additional flags for configuring linker plugins @<:@none@:>@])],
1756 extra_linker_plugin_configure_flags=$enableval,
1757 extra_linker_plugin_configure_flags=)
1758AC_SUBST(extra_linker_plugin_configure_flags)
1759AC_ARG_ENABLE(linker-plugin-flags,
1760 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1761 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1762 extra_linker_plugin_flags=$enableval,
1763 extra_linker_plugin_flags=)
1764AC_SUBST(extra_linker_plugin_flags)
1765
cdfee50a
NS		 1766# Enable --enable-host-shared.
1767# Checked early to determine whether jit is an 'all' language
1768AC_ARG_ENABLE(host-shared,
1769[AS_HELP_STRING([--enable-host-shared],
1770 [build host code as shared libraries])],
1771[host_shared=$enableval], [host_shared=no])
1772AC_SUBST(host_shared)
f8bf9252 1773
0823efed 1774# By default, C and C++ are the only stage 1 languages.
e1888513 1775stage1_languages=,c,
2805b53a 1776
00020c16 1777# Target libraries that we bootstrap.
ad1e5170 1778bootstrap_target_libs=,target-libgcc,
00020c16 1779
e4c9c075
PB		 1780# Figure out what language subdirectories are present.
1781# Look if the user specified --enable-languages="..."; if not, use
1782# the environment variable $LANGUAGES if defined. $LANGUAGES might
1783# go away some day.
1784# NB: embedded tabs in this IF block -- do not untabify
1785if test -d ${srcdir}/gcc; then
1786 if test x"${enable_languages+set}" != xset; then
1787 if test x"${LANGUAGES+set}" = xset; then
1788 enable_languages="${LANGUAGES}"
6b1786aa 1789 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
e4c9c075 1790 else
cdfee50a 1791 enable_languages=default
e4c9c075
PB		 1792 fi
1793 else
1794 if test x"${enable_languages}" = x ||
1795 test x"${enable_languages}" = xyes;
1796 then
6b1786aa 1797 echo configure.ac: --enable-languages needs at least one language argument 1>&2
e4c9c075
PB		 1798 exit 1
1799 fi
1800 fi
1801 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1802
7f26dfa3
FXC		 1803 # 'f95' is the old name for the 'fortran' language. We issue a warning
1804 # and make the substitution.
1805 case ,${enable_languages}, in
1806 *,f95,*)
6b1786aa 1807 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
7f26dfa3
FXC		 1808 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1809 ;;
1810 esac
1811
0823efed
DN		 1812 # If bootstrapping, C++ must be enabled.
1813 case ",$enable_languages,:$enable_bootstrap" in
1814 *,c++,*:*) ;;
1815 *:yes)
ff3ac0f4
ILT		 1816 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1817 enable_languages="${enable_languages},c++"
1818 else
0823efed 1819 AC_MSG_ERROR([bootstrapping requires c++ sources])
ff3ac0f4
ILT		 1820 fi
1821 ;;
1822 esac
1823
e4c9c075
PB		 1824 # First scan to see if an enabled language requires some other language.
1825 # We assume that a given config-lang.in will list all the language
1826 # front ends it requires, even if some are required indirectly.
1827 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1828 case ${lang_frag} in
1829 ..) ;;
1830 # The odd quoting in the next line works around
1831 # an apparent bug in bash 1.12 on linux.
1832 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1833 *)
69ecd18f
ILT		 1834 # From the config-lang.in, get $language, $lang_requires, and
1835 # $lang_requires_boot_languages.
e4c9c075
PB		 1836 language=
1837 lang_requires=
69ecd18f 1838 lang_requires_boot_languages=
d4360477
NS		 1839 # set srcdir during sourcing lang_frag to the gcc dir.
1840 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1841 # polutes this shell
1842 saved_srcdir=${srcdir}
1843 srcdir=${srcdir}/gcc . ${lang_frag}
1844 srcdir=${saved_srcdir}
69ecd18f 1845 for other in ${lang_requires} ${lang_requires_boot_languages}; do
e4c9c075
PB		 1846 case ,${enable_languages}, in
1847 *,$other,*) ;;
cdfee50a 1848 *,default,*) ;;
e4c9c075
PB		 1849 *,all,*) ;;
1850 *,$language,*)
1851 echo " \`$other' language required by \`$language'; enabling" 1>&2
1852 enable_languages="${enable_languages},${other}"
1853 ;;
1854 esac
1855 done
69ecd18f
ILT		 1856 for other in ${lang_requires_boot_languages} ; do
1857 if test "$other" != "c"; then
1858 case ,${enable_stage1_languages}, in
1859 *,$other,*) ;;
cdfee50a 1860 *,default,*) ;;
69ecd18f
ILT		 1861 *,all,*) ;;
1862 *)
1863 case ,${enable_languages}, in
1864 *,$language,*)
1865 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1866 enable_stage1_languages="$enable_stage1_languages,${other}"
1867 ;;
1868 esac
1869 ;;
1870 esac
1871 fi
1872 done
e4c9c075
PB		 1873 ;;
1874 esac
1875 done
1876
e1888513 1877 new_enable_languages=,c,
d7f09764
DN		 1878
1879 # If LTO is enabled, add the LTO front end.
d7f09764 1880 if test "$enable_lto" = "yes" ; then
e4c5bd48
RW		 1881 case ,${enable_languages}, in
1882 *,lto,*) ;;
1883 *) enable_languages="${enable_languages},lto" ;;
1884 esac
1cd0b716 1885 if test "${build_lto_plugin}" = "yes" ; then
d7f09764 1886 configdirs="$configdirs lto-plugin"
d7f09764
DN		 1887 fi
1888 fi
d7f09764 1889
426c1eb0
TS		 1890 # If we're building an offloading compiler, add the LTO front end.
1891 if test x"$enable_as_accelerator_for" != x ; then
1892 case ,${enable_languages}, in
1893 *,lto,*) ;;
1894 *) enable_languages="${enable_languages},lto" ;;
1895 esac
1896 fi
1897
cdfee50a 1898 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
e1888513 1899 potential_languages=,c,
e4c9c075 1900
4da3b0f8
ILT		 1901 enabled_target_libs=
1902 disabled_target_libs=
1903
e4c9c075
PB		 1904 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1905 case ${lang_frag} in
1906 ..) ;;
1907 # The odd quoting in the next line works around
1908 # an apparent bug in bash 1.12 on linux.
1909 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1910 *)
1911 # From the config-lang.in, get $language, $target_libs,
2805b53a 1912 # $lang_dirs, $boot_language, and $build_by_default
e4c9c075
PB		 1913 language=
1914 target_libs=
1915 lang_dirs=
1546bb64 1916 subdir_requires=
e1888513
PB		 1917 boot_language=no
1918 build_by_default=yes
d4360477
NS		 1919 # set srcdir during sourcing. See above about save & restore
1920 saved_srcdir=${srcdir}
1921 srcdir=${srcdir}/gcc . ${lang_frag}
1922 srcdir=${saved_srcdir}
e1888513
PB		 1923 if test x${language} = x; then
1924 echo "${lang_frag} doesn't set \$language." 1>&2
1925 exit 1
1926 fi
1927
78767fd9 1928 if test "$language" = "c++"; then
0823efed 1929 boot_language=yes
00020c16
ILT		 1930 fi
1931
178f875a 1932 add_this_lang=no
cdfee50a
NS		 1933 # C is always enabled, so no need to add it again
1934 if test "$language" != "c"; then
1935 case ,${enable_languages}, in
1936 *,${language},*)
1937 # Language was explicitly selected; include it
d4a10d0a 1938 add_this_lang=yes
cdfee50a
NS		 1939 ;;
1940 *,all,*)
1941 # All languages are enabled
1942 add_this_lang=all
1943 ;;
1944 *,default,*)
1945 # 'default' was selected, select it if it is a default language
178f875a 1946 add_this_lang=${build_by_default}
cdfee50a
NS		 1947 ;;
1948 esac
1949 fi
6de9cd9a 1950
1546bb64 1951 # Disable languages that need other directories if these aren't available.
95695ad3 1952 for i in $subdir_requires; do
b6348cb3 1953 test -f "$srcdir/gcc/$i/config-lang.in" && continue
cdfee50a
NS		 1954 case ${add_this_lang} in
1955 yes)
1546bb64
PB		 1956 # Specifically requested language; tell them.
1957 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1958 ;;
cdfee50a
NS		 1959 all)
1960 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
1961 add_this_lang=unsupported
1962 ;;
1546bb64
PB		 1963 *)
1964 # Silently disable.
e1888513 1965 add_this_lang=unsupported
1546bb64
PB		 1966 ;;
1967 esac
1968 done
1969
e1888513 1970 # Disable Ada if no preexisting GNAT is available.
cdfee50a
NS		 1971 case ${add_this_lang}:${language}:${have_gnat} in
1972 yes:ada:no)
e1888513
PB		 1973 # Specifically requested language; tell them.
1974 AC_MSG_ERROR([GNAT is required to build $language])
1975 ;;
cdfee50a
NS		 1976 all:ada:no)
1977 AC_MSG_WARN([GNAT is required to build $language])
1978 add_this_lang=unsupported
1979 ;;
e1888513
PB		 1980 *:ada:no)
1981 # Silently disable.
1982 add_this_lang=unsupported
1983 ;;
1984 esac
1985
cdfee50a
NS		 1986 # Disable jit if -enable-host-shared not specified
1987 case ${add_this_lang}:${language}:${host_shared} in
1988 yes:jit:no)
1989 # PR jit/64780: explicitly specify --enable-host-shared
1990 AC_MSG_ERROR([
1991Enabling language "jit" requires --enable-host-shared.
1992
1993--enable-host-shared typically slows the rest of the compiler down by
1994a few %, so you must explicitly enable it.
1995
1996If you want to build both the jit and the regular compiler, it is often
1997best to do this via two separate configure/builds, in separate
1998directories, to avoid imposing the performance cost of
1999--enable-host-shared on the regular compiler.])
2000 ;;
2001 all:jit:no)
2002 AC_MSG_WARN([--enable-host-shared required to build $language])
2003 add_this_lang=unsupported
2004 ;;
2005 *:jit:no)
2006 # Silently disable.
2007 add_this_lang=unsupported
2008 ;;
2009 esac
2010
2011 # Disable a language that is unsupported by the target.
2012 case "${add_this_lang}: $unsupported_languages " in
2013 no:*) ;;
2014 unsupported:*) ;;
2015 *:*" $language "*)
2016 AC_MSG_WARN([${language} not supported for this target])
e1888513 2017 add_this_lang=unsupported
4fab7234
HPN		 2018 ;;
2019 esac
2020
6de9cd9a 2021 case $add_this_lang in
e1888513 2022 unsupported)
e4c9c075 2023 # Remove language-dependent dirs.
4da3b0f8
ILT		 2024 disabled_target_libs="$disabled_target_libs $target_libs"
2025 noconfigdirs="$noconfigdirs $lang_dirs"
2805b53a 2026 ;;
e1888513
PB		 2027 no)
2028 # Remove language-dependent dirs; still show language as supported.
4da3b0f8
ILT		 2029 disabled_target_libs="$disabled_target_libs $target_libs"
2030 noconfigdirs="$noconfigdirs $lang_dirs"
e1888513
PB		 2031 potential_languages="${potential_languages}${language},"
2032 ;;
cdfee50a 2033 all|yes)
e1888513
PB		 2034 new_enable_languages="${new_enable_languages}${language},"
2035 potential_languages="${potential_languages}${language},"
2805b53a 2036 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
4da3b0f8 2037 enabled_target_libs="$enabled_target_libs $target_libs"
ab9dcd0c
RW		 2038 case "${boot_language}:,$enable_stage1_languages," in
2039 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
340de83f 2040 # Add to (comma-separated) list of stage 1 languages.
ab9dcd0c
RW		 2041 case ",$stage1_languages," in
2042 *,$language,* | ,yes, | ,all,) ;;
2043 *) stage1_languages="${stage1_languages}${language}," ;;
2044 esac
00020c16
ILT		 2045 # We need to bootstrap any supporting libraries.
2046 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2805b53a
NN		 2047 ;;
2048 esac
2049 ;;
e4c9c075
PB		 2050 esac
2051 ;;
2052 esac
2053 done
2054
4da3b0f8
ILT		 2055 # Add target libraries which are only needed for disabled languages
2056 # to noconfigdirs.
2057 if test -n "$disabled_target_libs"; then
2058 for dir in $disabled_target_libs; do
2059 case " $enabled_target_libs " in
2060 *" ${dir} "*) ;;
2061 *) noconfigdirs="$noconfigdirs $dir" ;;
2062 esac
2063 done
2064 fi
2065
e1888513 2066 AC_ARG_ENABLE(stage1-languages,
33e39b66
AS		 2067 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2068 [choose additional languages to build during
2069 stage1. Mostly useful for compiler development])],
e1888513
PB		 2070 [case ,${enable_stage1_languages}, in
2071 ,no,|,,)
2072 # Set it to something that will have no effect in the loop below
2073 enable_stage1_languages=c ;;
2074 ,yes,)
2075 enable_stage1_languages=`echo $new_enable_languages | \
2076 sed -e "s/^,//" -e "s/,$//" ` ;;
2077 *,all,*)
2078 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2079 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2080 esac
2081
2082 # Add "good" languages from enable_stage1_languages to stage1_languages,
2083 # while "bad" languages go in missing_languages. Leave no duplicates.
2084 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2085 case $potential_languages in
2086 *,$i,*)
2087 case $stage1_languages in
2088 *,$i,*) ;;
2089 *) stage1_languages="$stage1_languages$i," ;;
2090 esac ;;
2091 *)
2092 case $missing_languages in
2093 *,$i,*) ;;
2094 *) missing_languages="$missing_languages$i," ;;
2095 esac ;;
2096 esac
2097 done])
2098
2099 # Remove leading/trailing commas that were added for simplicity
2100 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
79b4b7d2 2101 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
e1888513
PB		 2102 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2103 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2104
e4c9c075
PB		 2105 if test "x$missing_languages" != x; then
2106 AC_MSG_ERROR([
0cf085e4 2107The following requested languages could not be built: ${missing_languages}
e1888513 2108Supported languages are: ${potential_languages}])
e4c9c075 2109 fi
e4c9c075
PB		 2110 if test "x$new_enable_languages" != "x$enable_languages"; then
2111 echo The following languages will be built: ${new_enable_languages}
e1888513 2112 enable_languages="$new_enable_languages"
e4c9c075 2113 fi
e1888513
PB		 2114
2115 AC_SUBST(stage1_languages)
b2eaac4a 2116 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
e4c9c075
PB		 2117fi
2118
27079765
AH		 2119# Handle --disable-<component> generically.
2120for dir in $configdirs $build_configdirs $target_configdirs ; do
2121 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
ac9e6043
RW		 2122 varname=`echo $dirname | sed -e s/+/_/g`
2123 if eval test x\${enable_${varname}} "=" xno ; then
27079765
AH		 2124 noconfigdirs="$noconfigdirs $dir"
2125 fi
2126done
2127
43c40f3e
RO		 2128# Check for Boehm's garbage collector
2129AC_ARG_ENABLE(objc-gc,
2130[AS_HELP_STRING([--enable-objc-gc],
2131 [enable use of Boehm's garbage collector with the
114bf3f1
MK		 2132 GNU Objective-C runtime])])
2133AC_ARG_WITH([target-bdw-gc],
2134[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2135 [specify prefix directory for installed bdw-gc package.
2136 Equivalent to --with-target-bdw-gc-include=PATH/include
2137 plus --with-target-bdw-gc-lib=PATH/lib])])
2138AC_ARG_WITH([target-bdw-gc-include],
2139[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2140 [specify directories for installed bdw-gc include files])])
2141AC_ARG_WITH([target-bdw-gc-lib],
2142[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2143 [specify directories for installed bdw-gc library])])
2144
2145case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2146 AC_MSG_CHECKING([for bdw garbage collector])
2147 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
825fba52
MK		 2148 dnl no bdw-gw options, assume default locations
2149 AC_MSG_RESULT([using bdw-gc in default locations])
114bf3f1
MK		 2150 else
2151 dnl bdw-gw options, first error checking, complete checking in libobjc
2152 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2153 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2154 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2155 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2156 else
2157 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2158 fi
2159 fi
43c40f3e
RO		 2160esac
2161
5e9d6aa4 2162# Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
99776ebd 2163case ,${enable_languages}, in
1007a55c 2164 *,c++,*)
5e9d6aa4 2165 # Disable libitm, libsanitizer if we're not building libstdc++
1007a55c
JW		 2166 case "${noconfigdirs}" in
2167 *target-libstdc++-v3*)
5e9d6aa4 2168 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
1007a55c
JW		 2169 ;;
2170 *) ;;
2171 esac
2172 ;;
99776ebd 2173 *)
5e9d6aa4 2174 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
99776ebd
RH		 2175 ;;
2176esac
7cd0cf9c 2177
9d069a4f
PB		 2178# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2179# $build_configdirs and $target_configdirs.
e4c9c075
PB		 2180# If we have the source for $noconfigdirs entries, add them to $notsupp.
2181
2182notsupp=""
2183for dir in . $skipdirs $noconfigdirs ; do
9d069a4f 2184 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
e4c9c075
PB		 2185 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2186 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2187 if test -r $srcdir/$dirname/configure ; then
2188 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2189 true
2190 else
2191 notsupp="$notsupp $dir"
2192 fi
2193 fi
2194 fi
9d069a4f
PB		 2195 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2196 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2197 if test -r $srcdir/$dirname/configure ; then
2198 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2199 true
2200 else
2201 notsupp="$notsupp $dir"
2202 fi
2203 fi
2204 fi
e4c9c075
PB		 2205 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2206 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2207 if test -r $srcdir/$dirname/configure ; then
2208 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2209 true
2210 else
2211 notsupp="$notsupp $dir"
2212 fi
2213 fi
2214 fi
2215done
2216
e4c9c075
PB		 2217# Quietly strip out all directories which aren't configurable in this tree.
2218# This relies on all configurable subdirectories being autoconfiscated, which
2219# is now the case.
23f6b2f9
PB		 2220build_configdirs_all="$build_configdirs"
2221build_configdirs=
2222for i in ${build_configdirs_all} ; do
2223 j=`echo $i | sed -e s/build-//g`
2224 if test -f ${srcdir}/$j/configure ; then
2225 build_configdirs="${build_configdirs} $i"
2226 fi
2227done
2228
e4c9c075
PB		 2229configdirs_all="$configdirs"
2230configdirs=
2231for i in ${configdirs_all} ; do
2232 if test -f ${srcdir}/$i/configure ; then
2233 configdirs="${configdirs} $i"
2234 fi
2235done
23f6b2f9 2236
e4c9c075
PB		 2237target_configdirs_all="$target_configdirs"
2238target_configdirs=
2239for i in ${target_configdirs_all} ; do
2240 j=`echo $i | sed -e s/target-//g`
2241 if test -f ${srcdir}/$j/configure ; then
2242 target_configdirs="${target_configdirs} $i"
2243 fi
2244done
2245
45b3824d
TS		 2246# libiberty-linker-plugin is special: it doesn't have its own source directory,
2247# so we have to add it after the preceding checks.
2248if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2249then
2250 case " $configdirs " in
2251 *" libiberty "*)
2252 # If we can build libiberty, we can also build libiberty-linker-plugin.
2253 configdirs="$configdirs libiberty-linker-plugin"
2254 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2255 --with-libiberty=../libiberty-linker-plugin";;
2256 *)
2257 AC_MSG_ERROR([libiberty missing]);;
2258 esac
2259fi
2260
fca38047
TS		 2261# Sometimes we have special requirements for the host libiberty.
2262extra_host_libiberty_configure_flags=
1c01ebf6 2263extra_host_zlib_configure_flags=
fca38047
TS		 2264case " $configdirs " in
2265 *" lto-plugin "* | *" libcc1 "*)
2266 # When these are to be built as shared libraries, the same applies to
2267 # libiberty.
2268 extra_host_libiberty_configure_flags=--enable-shared
2269 ;;
1c01ebf6
L		 2270 *" bfd "*)
2271 # When bfd is to be built as a shared library, the same applies to
2272 # zlib.
2273 if test "$enable_shared" = "yes"; then
2274 extra_host_zlib_configure_flags=--enable-host-shared
2275 fi
2276 ;;
fca38047
TS		 2277esac
2278AC_SUBST(extra_host_libiberty_configure_flags)
1c01ebf6 2279AC_SUBST(extra_host_zlib_configure_flags)
fca38047 2280
e4c9c075
PB		 2281# Produce a warning message for the subdirs we can't configure.
2282# This isn't especially interesting in the Cygnus tree, but in the individual
2283# FSF releases, it's important to let people know when their machine isn't
2284# supported by the one or two programs in a package.
2285
2286if test -n "${notsupp}" && test -z "${norecursion}" ; then
2287 # If $appdirs is non-empty, at least one of those directories must still
2288 # be configured, or we error out. (E.g., if the gas release supports a
2289 # specified target in some subdirs but not the gas subdir, we shouldn't
2290 # pretend that all is well.)
2291 if test -n "$appdirs" ; then
2292 for dir in $appdirs ; do
2293 if test -r $dir/Makefile.in ; then
2294 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2295 appdirs=""
2296 break
2297 fi
23f6b2f9 2298 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
e4c9c075
PB		 2299 appdirs=""
2300 break
2301 fi
2302 fi
2303 done
2304 if test -n "$appdirs" ; then
2305 echo "*** This configuration is not supported by this package." 1>&2
2306 exit 1
2307 fi
2308 fi
2309 # Okay, some application will build, or we don't care to check. Still
2310 # notify of subdirs not getting built.
2311 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2312 echo " ${notsupp}" 1>&2
2313 echo " (Any other directories should still work fine.)" 1>&2
2314fi
2315
2316case "$host" in
2317 *msdosdjgpp*)
2318 enable_gdbtk=no ;;
2319esac
2320
c3a86da9
DJ		 2321# To find our prefix, in gcc_cv_tool_prefix.
2322ACX_TOOL_DIRS
2323
e4c9c075
PB		 2324copy_dirs=
2325
526635cb 2326AC_ARG_WITH([build-sysroot],
33e39b66
AS		 2327 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2328 [use sysroot as the system root during the build])],
526635cb
MM		 2329 [if test x"$withval" != x ; then
2330 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2331 fi],
2332 [SYSROOT_CFLAGS_FOR_TARGET=])
2333AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2334
c8aea42c 2335AC_ARG_WITH([debug-prefix-map],
33e39b66
AS		 2336 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2337 [map A to B, C to D ... in debug information])],
c8aea42c
PB		 2338 [if test x"$withval" != x; then
2339 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2340 for debug_map in $withval; do
2341 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2342 done
2343 fi],
2344 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2345AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2346
1c8bd6a3
PB		 2347# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2348# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2349# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2350# We want to ensure that TARGET libraries (which we know are built with
2351# gcc) are built with "-O2 -g", so include those options when setting
2352# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2353if test "x$CFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2354 if test "x${is_cross_compiler}" = xyes; then
2355 CFLAGS_FOR_TARGET="-g -O2"
2356 else
2357 CFLAGS_FOR_TARGET=$CFLAGS
2358 case " $CFLAGS " in
2359 *" -O2 "*) ;;
2360 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2361 esac
2362 case " $CFLAGS " in
2363 *" -g "* | *" -g3 "*) ;;
2364 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2365 esac
2366 fi
1c8bd6a3
PB		 2367fi
2368AC_SUBST(CFLAGS_FOR_TARGET)
2369
2370if test "x$CXXFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2371 if test "x${is_cross_compiler}" = xyes; then
2372 CXXFLAGS_FOR_TARGET="-g -O2"
2373 else
2374 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2375 case " $CXXFLAGS " in
2376 *" -O2 "*) ;;
2377 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2378 esac
2379 case " $CXXFLAGS " in
2380 *" -g "* | *" -g3 "*) ;;
2381 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2382 esac
2383 fi
1c8bd6a3
PB		 2384fi
2385AC_SUBST(CXXFLAGS_FOR_TARGET)
2386
6f57bdf6
DK		 2387AC_SUBST(LDFLAGS_FOR_TARGET)
2388
e4c9c075
PB		 2389# Handle --with-headers=XXX. If the value is not "yes", the contents of
2390# the named directory are copied to $(tooldir)/sys-include.
2391if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2392 if test x${is_cross_compiler} = xno ; then
2393 echo 1>&2 '***' --with-headers is only supported when cross compiling
2394 exit 1
2395 fi
2396 if test x"${with_headers}" != xyes ; then
c3a86da9 2397 x=${gcc_cv_tool_prefix}
1c710c3c 2398 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
e4c9c075
PB		 2399 fi
2400fi
2401
2402# Handle --with-libs=XXX. If the value is not "yes", the contents of
2403# the name directories are copied to $(tooldir)/lib. Multiple directories
2404# are permitted.
2405if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2406 if test x${is_cross_compiler} = xno ; then
2407 echo 1>&2 '***' --with-libs is only supported when cross compiling
2408 exit 1
2409 fi
2410 if test x"${with_libs}" != xyes ; then
2411 # Copy the libraries in reverse order, so that files in the first named
2412 # library override files in subsequent libraries.
c3a86da9 2413 x=${gcc_cv_tool_prefix}
e4c9c075 2414 for l in ${with_libs}; do
1c710c3c 2415 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
e4c9c075
PB		 2416 done
2417 fi
2418fi
2419
d7f09764 2420# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
e8b05380
PB		 2421#
2422# This is done by determining whether or not the appropriate directory
2423# is available, and by checking whether or not specific configurations
2424# have requested that this magic not happen.
2425#
2426# The command line options always override the explicit settings in
6b1786aa 2427# configure.ac, and the settings in configure.ac override this magic.
e8b05380
PB		 2428#
2429# If the default for a toolchain is to use GNU as and ld, and you don't
2430# want to do that, then you should use the --without-gnu-as and
d7f09764
DN		 2431# --without-gnu-ld options for the configure script. Similarly, if
2432# the default is to use the included zlib and you don't want to do that,
2433# you should use the --with-system-zlib option for the configure script.
e8b05380
PB		 2434
2435if test x${use_gnu_as} = x &&
2436 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2437 with_gnu_as=yes
2438 extra_host_args="$extra_host_args --with-gnu-as"
2439fi
2440
2441if test x${use_gnu_ld} = x &&
5afab7ad 2442 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
e8b05380
PB		 2443 with_gnu_ld=yes
2444 extra_host_args="$extra_host_args --with-gnu-ld"
2445fi
2446
d7f09764
DN		 2447if test x${use_included_zlib} = x &&
2448 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2449 :
2450else
2451 with_system_zlib=yes
2452 extra_host_args="$extra_host_args --with-system-zlib"
2453fi
2454
e8b05380
PB		 2455# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2456# can detect this case.
2457
2458if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2459 with_newlib=yes
2460 extra_host_args="$extra_host_args --with-newlib"
2461fi
2462
e4c9c075
PB		 2463# Handle ${copy_dirs}
2464set fnord ${copy_dirs}
2465shift
2466while test $# != 0 ; do
2467 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2468 :
2469 else
2470 echo Copying $1 to $2
2471
2472 # Use the install script to create the directory and all required
2473 # parent directories.
2474 if test -d $2 ; then
2475 :
2476 else
2477 echo >config.temp
2478 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2479 fi
2480
2481 # Copy the directory, assuming we have tar.
2482 # FIXME: Should we use B in the second tar? Not all systems support it.
2483 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2484
2485 # It is the responsibility of the user to correctly adjust all
2486 # symlinks. If somebody can figure out how to handle them correctly
2487 # here, feel free to add the code.
2488
2489 echo $1 > $2/COPIED
2490 fi
2491 shift; shift
2492done
2493
e8b05380
PB		 2494# Determine a target-dependent exec_prefix that the installed
2495# gcc will search in. Keep this list sorted by triplet, with
2496# the *-*-osname triplets last.
2497md_exec_prefix=
2498case "${target}" in
30b74385 2499 i[[34567]]86-pc-msdosdjgpp*)
e8b05380
PB		 2500 md_exec_prefix=/dev/env/DJDIR/bin
2501 ;;
e8b05380 2502 *-*-hpux* | \
e8b05380 2503 *-*-nto-qnx* | \
6de66370 2504 *-*-solaris2*)
e8b05380
PB		 2505 md_exec_prefix=/usr/ccs/bin
2506 ;;
2507esac
2508
4977bab6
ZW		 2509extra_arflags_for_target=
2510extra_nmflags_for_target=
2a726918 2511extra_ranlibflags_for_target=
671aa708 2512target_makefile_frag=/dev/null
55380b08 2513case "${target}" in
58e24147
AM		 2514 spu-*-*)
2515 target_makefile_frag="config/mt-spu"
2516 ;;
74ae587e 2517 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
4bf6c438
RS		 2518 target_makefile_frag="config/mt-sde"
2519 ;;
1ec3b87b
RS		 2520 mipsisa*-*-elfoabi*)
2521 target_makefile_frag="config/mt-mips-elfoabi"
2522 ;;
08d0963a
RS		 2523 mips*-*-*linux* | mips*-*-gnu*)
2524 target_makefile_frag="config/mt-mips-gnu"
2525 ;;
707f1839
SL		 2526 nios2-*-elf*)
2527 target_makefile_frag="config/mt-nios2-elf"
2528 ;;
76052545
EB		 2529 *-*-linux-android*)
2530 target_makefile_frag="config/mt-android"
2531 ;;
416ac4d4 2532 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
98a5bb3b 2533 target_makefile_frag="config/mt-gnu"
55380b08 2534 ;;
671aa708 2535 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
4977bab6
ZW		 2536 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2537 # commands to handle both 32-bit and 64-bit objects. These flags are
2538 # harmless if we're using GNU nm or ar.
2539 extra_arflags_for_target=" -X32_64"
2540 extra_nmflags_for_target=" -B -X32_64"
55380b08 2541 ;;
c3b7d169
NN		 2542esac
2543
671aa708 2544alphaieee_frag=/dev/null
c3b7d169
NN		 2545case $target in
2546 alpha*-*-*)
2547 # This just makes sure to use the -mieee option to build target libs.
2548 # This should probably be set individually by each library.
2549 alphaieee_frag="config/mt-alphaieee"
55380b08
NN		 2550 ;;
2551esac
701afd4d 2552
55380b08
NN		 2553# If --enable-target-optspace always use -Os instead of -O2 to build
2554# the target libraries, similarly if it is not specified, use -Os
2555# on selected platforms.
671aa708 2556ospace_frag=/dev/null
55380b08
NN		 2557case "${enable_target_optspace}:${target}" in
2558 yes:*)
c3b7d169 2559 ospace_frag="config/mt-ospace"
55380b08
NN		 2560 ;;
2561 :d30v-*)
c3b7d169 2562 ospace_frag="config/mt-d30v"
55380b08 2563 ;;
d9063947 2564 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
c3b7d169 2565 ospace_frag="config/mt-ospace"
55380b08
NN		 2566 ;;
2567 no:* | :*)
2568 ;;
2569 *)
2570 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2571 ;;
2572esac
6599da04 2573
671aa708
NN		 2574# Some systems (e.g., one of the i386-aix systems the gas testers are
2575# using) don't handle "\$" correctly, so don't use it here.
1c710c3c 2576tooldir='${exec_prefix}'/${target_noncanonical}
671aa708
NN		 2577build_tooldir=${tooldir}
2578
671aa708
NN		 2579# Create a .gdbinit file which runs the one in srcdir
2580# and tells GDB to look there for source files.
2581
2582if test -r ${srcdir}/.gdbinit ; then
2583 case ${srcdir} in
2584 .) ;;
2585 *) cat > ./.gdbinit <<EOF
2586# ${NO_EDIT}
2587dir ${srcdir}
2588dir .
2589source ${srcdir}/.gdbinit
2590EOF
2591 ;;
2592 esac
2593fi
2594
6599da04
JM		 2595# Make sure that the compiler is able to generate an executable. If it
2596# can't, we are probably in trouble. We don't care whether we can run the
2597# executable--we might be using a cross compiler--we only care whether it
2598# can be created. At this point the main configure script has set CC.
aeaa0f2f 2599we_are_ok=no
6599da04
JM		 2600echo "int main () { return 0; }" > conftest.c
2601${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
aeaa0f2f
NN		 2602if test $? = 0 ; then
2603 if test -s conftest || test -s conftest.exe ; then
2604 we_are_ok=yes
2605 fi
2606fi
2607case $we_are_ok in
2608 no)
2609 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2610 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2611 rm -f conftest*
2612 exit 1
2613 ;;
2614esac
6599da04
JM		 2615rm -f conftest*
2616
d89f0ad6 2617# Decide which environment variable is used to find dynamic libraries.
fe3d5b7f
NN		 2618case "${host}" in
2619 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
111eeb6e 2620 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
d89f0ad6 2621 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
fe3d5b7f
NN		 2622 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2623esac
fe3d5b7f 2624
d89f0ad6
AL		 2625# On systems where the dynamic library environment variable is PATH,
2626# gcc/ will put dynamic libraries into a subdirectory to avoid adding
2627# built executables to PATH.
2628if test "$RPATH_ENVVAR" = PATH; then
2629 GCC_SHLIB_SUBDIR=/shlib
2630else
2631 GCC_SHLIB_SUBDIR=
2632fi
2633
beeda1d9
JJ		 2634# Adjust the toplevel makefile according to whether bootstrap was selected.
2635case $enable_bootstrap in
2636 yes)
2637 bootstrap_suffix=bootstrap
2638 BUILD_CONFIG=bootstrap-debug
2639 ;;
2640 no)
2641 bootstrap_suffix=no-bootstrap
2642 BUILD_CONFIG=
2643 ;;
2644esac
2645
2646AC_MSG_CHECKING(for default BUILD_CONFIG)
2647
2648AC_ARG_WITH([build-config],
2649 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2650 [use config/NAME.mk build configuration])],
2651 [case $with_build_config in
2652 yes) with_build_config= ;;
2653 no) with_build_config= BUILD_CONFIG= ;;
2654 esac])
2655
2656if test "x${with_build_config}" != x; then
2657 BUILD_CONFIG=$with_build_config
2658else
2659 case $BUILD_CONFIG in
2660 bootstrap-debug)
2661 if echo "int f (void) { return 0; }" > conftest.c &&
2662 ${CC} -c conftest.c &&
2663 mv conftest.o conftest.o.g0 &&
2664 ${CC} -c -g conftest.c &&
2665 mv conftest.o conftest.o.g &&
2666 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2667 :
2668 else
2669 BUILD_CONFIG=
2670 fi
2671 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2672 ;;
2673 esac
2674fi
2675AC_MSG_RESULT($BUILD_CONFIG)
2676AC_SUBST(BUILD_CONFIG)
2677
2678# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2679AC_MSG_CHECKING([for --enable-vtable-verify])
2680AC_ARG_ENABLE(vtable-verify,
318a4e6d
MF		 2681[AS_HELP_STRING([--enable-vtable-verify],
2682 [Enable vtable verification feature])],
beeda1d9
JJ		 2683[case "$enableval" in
2684 yes) enable_vtable_verify=yes ;;
2685 no) enable_vtable_verify=no ;;
2686 *) enable_vtable_verify=no;;
2687 esac],
2688[enable_vtable_verify=no])
2689AC_MSG_RESULT($enable_vtable_verify)
2690
4977bab6
ZW		 2691# Record target_configdirs and the configure arguments for target and
2692# build configuration in Makefile.
2693target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
23f6b2f9 2694build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
9e1c8fc1 2695bootstrap_fixincludes=no
4977bab6 2696
ad1e5170
JR		 2697# If we are building libgomp, bootstrap it.
2698if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2699 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2700fi
2701
beeda1d9
JJ		 2702# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2703# or bootstrap-ubsan, bootstrap it.
2704if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2705 case "$BUILD_CONFIG" in
2706 *bootstrap-asan* | *bootstrap-ubsan* )
2707 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
9e1c8fc1 2708 bootstrap_fixincludes=yes
beeda1d9
JJ		 2709 ;;
2710 esac
ac8701fe
L		 2711fi
2712
beeda1d9
JJ		 2713# If we are building libvtv and --enable-vtable-verify, bootstrap it.
2714if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2715 test "$enable_vtable_verify" != no; then
2077db1b
CT		 2716 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2717fi
2718
4977bab6
ZW		 2719# Determine whether gdb needs tk/tcl or not.
2720# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2721# and in that case we want gdb to be built without tk. Ugh!
2722# In fact I believe gdb is the *only* package directly dependent on tk,
2723# so we should be able to put the 'maybe's in unconditionally and
2724# leave out the maybe dependencies when enable_gdbtk is false. I'm not
2725# 100% sure that that's safe though.
e914a571 2726
b4f96efe 2727gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
4977bab6
ZW		 2728case "$enable_gdbtk" in
2729 no)
2730 GDB_TK="" ;;
e914a571
AC		 2731 yes)
2732 GDB_TK="${gdb_tk}" ;;
4977bab6 2733 *)
e914a571
AC		 2734 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2735 # distro. Eventually someone will fix this and move Insight, nee
2736 # gdbtk to a separate directory.
2737 if test -d ${srcdir}/gdb/gdbtk ; then
2738 GDB_TK="${gdb_tk}"
2739 else
2740 GDB_TK=""
2741 fi
2742 ;;
4977bab6 2743esac
ef9db8d5
DJ		 2744CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2745INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
4977bab6 2746
60975492 2747# Strip out unwanted targets.
8b87bb96
NN		 2748
2749# While at that, we remove Makefiles if we were started for recursive
2750# configuration, so that the top-level Makefile reconfigures them,
2751# like we used to do when configure itself was recursive.
8b87bb96 2752
3e54529c
RW		 2753# Loop over modules. We used to use the "$extrasub" feature from Autoconf
2754# but now we're fixing up the Makefile ourselves with the additional
2755# commands passed to AC_CONFIG_FILES. Use separate variables
2756# extrasub-{build,host,target} not because there is any reason to split
2757# the substitutions up that way, but only to remain below the limit of
2758# 99 commands in a script, for HP-UX sed.
da34ca3f
AO		 2759
2760# Do not nest @if/@endif or @unless/@endunless pairs, because
2761# configure will not warn you at all.
8b87bb96 2762
79cd2b23
RW		 2763case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2764 yes:yes:*\ gold\ *:*,c++,*) ;;
2765 yes:yes:*\ gold\ *:*)
2766 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2767 ;;
2768esac
2769
3e54529c 2770extrasub_build=
23f6b2f9 2771for module in ${build_configdirs} ; do
8b87bb96
NN		 2772 if test -z "${no_recursion}" \
2773 && test -f ${build_subdir}/${module}/Makefile; then
2774 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2775 rm -f ${build_subdir}/${module}/Makefile
2776 fi
3e54529c 2777 extrasub_build="$extrasub_build
60975492 2778/^@if build-$module\$/d
5607edfd 2779/^@endif build-$module\$/d
da34ca3f 2780/^@unless build-$module\$/,/^@endunless build-$module\$/d
5607edfd 2781/^@if build-$module-$bootstrap_suffix\$/d
da34ca3f
AO		 2782/^@endif build-$module-$bootstrap_suffix\$/d
2783/^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
8b87bb96 2784done
3e54529c 2785extrasub_host=
8b87bb96 2786for module in ${configdirs} ; do
a6fbc1e2 2787 if test -z "${no_recursion}"; then
f063a9ed 2788 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
a6fbc1e2
AS		 2789 if test -f ${file}; then
2790 echo 1>&2 "*** removing ${file} to force reconfigure"
2791 rm -f ${file}
2792 fi
2793 done
8b87bb96 2794 fi
9e1c8fc1
JJ		 2795 case ${module},${bootstrap_fixincludes} in
2796 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2797 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2798 esac
3e54529c 2799 extrasub_host="$extrasub_host
60975492 2800/^@if $module\$/d
5607edfd 2801/^@endif $module\$/d
da34ca3f 2802/^@unless $module\$/,/^@endunless $module\$/d
9e1c8fc1 2803/^@if $module-$host_bootstrap_suffix\$/d
da34ca3f
AO		 2804/^@endif $module-$host_bootstrap_suffix\$/d
2805/^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
8b87bb96 2806done
3e54529c 2807extrasub_target=
8b87bb96
NN		 2808for module in ${target_configdirs} ; do
2809 if test -z "${no_recursion}" \
2810 && test -f ${target_subdir}/${module}/Makefile; then
2811 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2812 rm -f ${target_subdir}/${module}/Makefile
2813 fi
00020c16
ILT		 2814
2815 # We only bootstrap target libraries listed in bootstrap_target_libs.
2816 case $bootstrap_target_libs in
2817 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2818 *) target_bootstrap_suffix=no-bootstrap ;;
2819 esac
2820
3e54529c 2821 extrasub_target="$extrasub_target
60975492 2822/^@if target-$module\$/d
5607edfd 2823/^@endif target-$module\$/d
da34ca3f 2824/^@unless target-$module\$/,/^@endunless target-$module\$/d
00020c16 2825/^@if target-$module-$target_bootstrap_suffix\$/d
da34ca3f
AO		 2826/^@endif target-$module-$target_bootstrap_suffix\$/d
2827/^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
4977bab6 2828done
f516a7da 2829
3e54529c
RW		 2830# Do the final fixup along with target modules.
2831extrasub_target="$extrasub_target
da34ca3f
AO		 2832/^@if /,/^@endif /d
2833/^@unless /d
2834/^@endunless /d"
4977bab6
ZW		 2835
2836# Create the serialization dependencies. This uses a temporary file.
2837
ade82b16 2838AC_ARG_ENABLE([serial-configure],
33e39b66
AS		 2839[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2840 [force sequential configuration of
2841 sub-packages for the host, target or build
2842 machine, or all sub-packages])])
bf1d3e81
NN		 2843
2844case ${enable_serial_configure} in
2845 yes)
2846 enable_serial_build_configure=yes
2847 enable_serial_host_configure=yes
2848 enable_serial_target_configure=yes
2849 ;;
2850esac
ade82b16 2851
4977bab6
ZW		 2852# These force 'configure's to be done one at a time, to avoid problems
2853# with contention over a shared config.cache.
2854rm -f serdep.tmp
ade82b16 2855echo '# serdep.tmp' > serdep.tmp
4977bab6 2856olditem=
bf1d3e81 2857test "x${enable_serial_build_configure}" = xyes &&
4977bab6
ZW		 2858for item in ${build_configdirs} ; do
2859 case ${olditem} in
2860 "") ;;
ade82b16 2861 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2862 esac
2863 olditem=${item}
2864done
2865olditem=
bf1d3e81 2866test "x${enable_serial_host_configure}" = xyes &&
4977bab6
ZW		 2867for item in ${configdirs} ; do
2868 case ${olditem} in
2869 "") ;;
ade82b16 2870 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2871 esac
2872 olditem=${item}
2873done
2874olditem=
bf1d3e81 2875test "x${enable_serial_target_configure}" = xyes &&
4977bab6
ZW		 2876for item in ${target_configdirs} ; do
2877 case ${olditem} in
2878 "") ;;
ade82b16 2879 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2880 esac
2881 olditem=${item}
2882done
671aa708
NN		 2883serialization_dependencies=serdep.tmp
2884AC_SUBST_FILE(serialization_dependencies)
fe3d5b7f 2885
ade82b16 2886# Base args. Strip norecursion, cache-file, srcdir, host, build,
1c710c3c 2887# target, nonopt, and variable assignments. These are the ones we
f1a036e4
NC		 2888# might not want to pass down to subconfigures. The exception being
2889# --cache-file=/dev/null, which is used to turn off the use of cache
2890# files altogether, and which should be passed on to subconfigures.
2891# Also strip program-prefix, program-suffix, and program-transform-name,
2892# so that we can pass down a consistent program-transform-name.
1c710c3c 2893baseargs=
29a63921 2894tbaseargs=
1c710c3c
DJ		 2895keep_next=no
2896skip_next=no
2897eval "set -- $ac_configure_args"
44bfc3ac
DJ		 2898for ac_arg
2899do
1c710c3c
DJ		 2900 if test X"$skip_next" = X"yes"; then
2901 skip_next=no
2902 continue
2903 fi
2904 if test X"$keep_next" = X"yes"; then
2905 case $ac_arg in
2906 *\'*)
2907 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2908 esac
2909 baseargs="$baseargs '$ac_arg'"
29a63921 2910 tbaseargs="$tbaseargs '$ac_arg'"
1c710c3c
DJ		 2911 keep_next=no
2912 continue
2913 fi
2914
2915 # Handle separated arguments. Based on the logic generated by
2916 # autoconf 2.59.
2917 case $ac_arg in
2918 *=* | --config-cache | -C | -disable-* | --disable-* \
2919 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2920 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2921 | -with-* | --with-* | -without-* | --without-* | --x)
2922 separate_arg=no
2923 ;;
2924 -*)
2925 separate_arg=yes
2926 ;;
2927 *)
2928 separate_arg=no
2929 ;;
2930 esac
2931
29a63921
AO		 2932 skip_targ=no
2933 case $ac_arg in
2934changequote(,)
2935 --with-* | --without-*)
2936 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2937
2938 case $libopt in
2939 *[-_]include)
2940 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2941 ;;
2942 *[-_]lib)
2943 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2944 ;;
2945 *)
2946 lib=$libopt
2947 ;;
2948 esac
2949changequote([,])
2950
2951 case $lib in
4a9bb2aa 2952 mpc | mpfr | gmp | isl)
29a63921
AO		 2953 # If we're processing --with-$lib, --with-$lib-include or
2954 # --with-$lib-lib, for one of the libs above, and target is
2955 # different from host, don't pass the current argument to any
2956 # target library's configure.
2957 if test x$is_cross_compiler = xyes; then
2958 skip_targ=yes
2959 fi
2960 ;;
2961 esac
2962 ;;
2963 esac
2964
1c710c3c 2965 case "$ac_arg" in
f1a036e4
NC		 2966 --cache-file=/dev/null | \
2967 -cache-file=/dev/null )
2968 # Handled here to avoid the test to skip args below.
2969 baseargs="$baseargs '$ac_arg'"
29a63921 2970 tbaseargs="$tbaseargs '$ac_arg'"
f1a036e4
NC		 2971 # Assert: $separate_arg should always be no.
2972 keep_next=$separate_arg
2973 ;;
1c710c3c
DJ		 2974 --no*)
2975 continue
2976 ;;
2977 --c* | \
2978 --sr* | \
2979 --ho* | \
2980 --bu* | \
2981 --t* | \
2982 --program-* | \
2983 -cache_file* | \
2984 -srcdir* | \
2985 -host* | \
2986 -build* | \
2987 -target* | \
2988 -program-prefix* | \
2989 -program-suffix* | \
2990 -program-transform-name* )
2991 skip_next=$separate_arg
2992 continue
2993 ;;
2994 -*)
2995 # An option. Add it.
2996 case $ac_arg in
2997 *\'*)
2998 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2999 esac
3000 baseargs="$baseargs '$ac_arg'"
29a63921
AO		 3001 if test X"$skip_targ" = Xno; then
3002 tbaseargs="$tbaseargs '$ac_arg'"
3003 fi
1c710c3c
DJ		 3004 keep_next=$separate_arg
3005 ;;
3006 *)
3007 # Either a variable assignment, or a nonopt (triplet). Don't
3008 # pass it down; let the Makefile handle this.
3009 continue
3010 ;;
3011 esac
3012done
3013# Remove the initial space we just introduced and, as these will be
3014# expanded by make, quote '$'.
3015baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
6599da04 3016
43bb47c2
DJ		 3017# Add in --program-transform-name, after --program-prefix and
3018# --program-suffix have been applied to it. Autoconf has already
3019# doubled dollar signs and backslashes in program_transform_name; we want
3020# the backslashes un-doubled, and then the entire thing wrapped in single
3021# quotes, because this will be expanded first by make and then by the shell.
3022# Also, because we want to override the logic in subdir configure scripts to
3023# choose program_transform_name, replace any s,x,x, with s,y,y,.
3024sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3025${program_transform_name}
3026EOF_SED
3027gcc_transform_name=`cat conftestsed.out`
3028rm -f conftestsed.out
3029baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
29a63921 3030tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
d9acb717
RW		 3031if test "$silent" = yes; then
3032 baseargs="$baseargs --silent"
29a63921 3033 tbaseargs="$tbaseargs --silent"
d9acb717 3034fi
0115d4a3 3035baseargs="$baseargs --disable-option-checking"
29a63921 3036tbaseargs="$tbaseargs --disable-option-checking"
43bb47c2 3037
ffedf511
RW		 3038# Record and document user additions to sub configure arguments.
3039AC_ARG_VAR([build_configargs],
3040 [additional configure arguments for build directories])
3041AC_ARG_VAR([host_configargs],
3042 [additional configure arguments for host directories])
3043AC_ARG_VAR([target_configargs],
3044 [additional configure arguments for target directories])
3045
e490616e
ZW		 3046# For the build-side libraries, we just need to pretend we're native,
3047# and not use the same cache file. Multilibs are neither needed nor
3d96b0d0
HPN		 3048# desired. We can't even use the same cache file for all build-side
3049# libraries, as they're compiled differently; some with C, some with
3050# C++ or with different feature-enabling options.
3051build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
e254d6b5 3052
4977bab6
ZW		 3053# For host modules, accept cache file option, or specification as blank.
3054case "${cache_file}" in
3055"") # empty
3056 cache_file_option="" ;;
671aa708 3057/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
4977bab6
ZW		 3058 cache_file_option="--cache-file=${cache_file}" ;;
3059*) # relative path
3060 cache_file_option="--cache-file=../${cache_file}" ;;
3061esac
3062
09438bde
NN		 3063# Host dirs don't like to share a cache file either, horribly enough.
3064# This seems to be due to autoconf 2.5x stupidity.
ffedf511 3065host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
4977bab6 3066
29a63921 3067target_configargs="$target_configargs ${tbaseargs}"
e490616e 3068
6599da04
JM		 3069# Passing a --with-cross-host argument lets the target libraries know
3070# whether they are being built with a cross-compiler or being built
3071# native. However, it would be better to use other mechanisms to make the
3072# sorts of decisions they want to make on this basis. Please consider
3073# this option to be deprecated. FIXME.
aeaa0f2f 3074if test x${is_cross_compiler} = xyes ; then
1c710c3c 3075 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
6599da04
JM		 3076fi
3077
79e0604d
FXC		 3078# Special user-friendly check for native x86_64-linux build, if
3079# multilib is not explicitly enabled.
3080case "$target:$have_compiler:$host:$target:$enable_multilib" in
3081 x86_64-*linux*:yes:$build:$build:)
e640447c 3082 # Make sure we have a development environment that handles 32-bit
79e0604d
FXC		 3083 dev64=no
3084 echo "int main () { return 0; }" > conftest.c
3085 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3086 if test $? = 0 ; then
3087 if test -s conftest || test -s conftest.exe ; then
3088 dev64=yes
3089 fi
3090 fi
3091 rm -f conftest*
3092 if test x${dev64} != xyes ; then
e640447c 3093 AC_MSG_ERROR([I suspect your system does not have 32-bit development libraries (libc and headers). If you have them, rerun configure with --enable-multilib. If you do not have them, and want to build a 64-bit-only compiler, rerun configure with --disable-multilib.])
79e0604d
FXC		 3094 fi
3095 ;;
3096esac
3097
dc683a3f
RW		 3098# Default to --enable-multilib.
3099if test x${enable_multilib} = x ; then
3fedb745 3100 target_configargs="--enable-multilib ${target_configargs}"
dc683a3f 3101fi
6599da04 3102
5d4a5ee6
JL		 3103# Pass --with-newlib if appropriate. Note that target_configdirs has
3104# changed from the earlier setting of with_newlib.
aeaa0f2f 3105if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3fedb745 3106 target_configargs="--with-newlib ${target_configargs}"
5d4a5ee6
JL		 3107fi
3108
6b9eb62c
NN		 3109# Different target subdirs use different values of certain variables
3110# (notably CXX). Worse, multilibs use *lots* of different values.
3111# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3112# it doesn't automatically accept command-line overrides of them.
3113# This means it's not safe for target subdirs to share a cache file,
3114# which is disgusting, but there you have it. Hopefully this can be
3115# fixed in future. It's still worthwhile to use a cache file for each
3116# directory. I think.
3117
bebcd931
MS		 3118# Pass the appropriate --build, --host, --target and --cache-file arguments.
3119# We need to pass --target, as newer autoconf's requires consistency
3120# for target_alias and gcc doesn't manage it consistently.
e69bf64b 3121target_configargs="--cache-file=./config.cache ${target_configargs}"
e490616e 3122
b87487b6 3123FLAGS_FOR_TARGET=
bb654703 3124case " $target_configdirs " in
7965440a 3125 *" newlib "*)
3fedb745 3126 case " $target_configargs " in
7965440a 3127 *" --with-newlib "*)
b87487b6 3128 case "$target" in
5d571eaa 3129 *-cygwin*)
443e6238 3130 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
5d571eaa 3131 ;;
b87487b6
AO		 3132 esac
3133
afd7db25 3134 # If we're not building GCC, don't discard standard headers.
ef40bc65 3135 if test -d ${srcdir}/gcc; then
d4eb109c 3136 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
afd7db25
AO		 3137
3138 if test "${build}" != "${host}"; then
3139 # On Canadian crosses, CC_FOR_TARGET will have already been set
3140 # by `configure', so we won't have an opportunity to add -Bgcc/
3141 # to it. This is right: we don't want to search that directory
3142 # for binaries, but we want the header files in there, so add
3143 # them explicitly.
0463992b 3144 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
afd7db25
AO		 3145
3146 # Someone might think of using the pre-installed headers on
3147 # Canadian crosses, in case the installed compiler is not fully
3148 # compatible with the compiler being built. In this case, it
3149 # would be better to flag an error than risking having
3150 # incompatible object files being constructed. We can't
3151 # guarantee that an error will be flagged, but let's hope the
3152 # compiler will do it, when presented with incompatible header
3153 # files.
3154 fi
d4eb109c
AO		 3155 fi
3156
ab50d72b 3157 case "${target}-${is_cross_compiler}" in
f2a0e225 3158 i[[3456789]]86-*-linux*-no)
ab50d72b
DD		 3159 # Here host == target, so we don't need to build gcc,
3160 # so we don't want to discard standard headers.
3161 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
ab50d72b
DD		 3162 ;;
3163 *)
3164 # If we're building newlib, use its generic headers last, but search
3165 # for any libc-related directories first (so make it the last -B
3166 # switch).
3167 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
c03353e2
RIL		 3168
3169 # If we're building libgloss, find the startup file, simulator library
3170 # and linker script.
3171 case " $target_configdirs " in
3172 *" libgloss "*)
3173 # Look for startup file, simulator library and maybe linker script.
3174 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3175 # Look for libnosys.a in case the target needs it.
3176 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3177 # Most targets have the linker script in the source directory.
3178 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3179 ;;
3180 esac
ab50d72b
DD		 3181 ;;
3182 esac
b87487b6 3183 ;;
7965440a
AO		 3184 esac
3185 ;;
b87487b6 3186esac
5d571eaa 3187
b91f0a41 3188case "$target" in
5d571eaa
OS		 3189 x86_64-*mingw* | *-w64-mingw*)
3190 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3191 # however, use a symlink named 'mingw' in ${prefix} .
3192 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3193 ;;
3194 *-mingw*)
3195 # MinGW can't be handled as Cygwin above since it does not use newlib.
3196 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3197 ;;
b91f0a41 3198esac
d4eb109c 3199
6691a79e
ME		 3200# Allow the user to override the flags for
3201# our build compiler if desired.
f019adc1
MF		 3202if test x"${build}" = x"${host}" ; then
3203 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3204 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3205 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3206fi
6691a79e 3207
d4eb109c
AO		 3208# On Canadian crosses, we'll be searching the right directories for
3209# the previously-installed cross compiler, so don't bother to add
3210# flags for directories within the install tree of the compiler
3211# being built; programs in there won't even run.
ef40bc65 3212if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
b87487b6 3213 # Search for pre-installed headers if nothing else fits.
9124bc53 3214 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
b87487b6 3215fi
d4eb109c 3216
bb654703 3217if test "x${use_gnu_ld}" = x &&
55380b08 3218 echo " ${configdirs} " | grep " ld " > /dev/null ; then
b87487b6 3219 # Arrange for us to find uninstalled linker scripts.
215c351a 3220 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
b87487b6
AO		 3221fi
3222
e88a2c09
DD		 3223# Search for other target-specific linker scripts and such.
3224case "${target}" in
3e19841a
PB		 3225 mep*)
3226 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3227 ;;
e88a2c09
DD		 3228esac
3229
671aa708 3230# Makefile fragments.
7b61653a
PE		 3231for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3232do
3233 eval fragval=\$$frag
3234 if test $fragval != /dev/null; then
3235 eval $frag=${srcdir}/$fragval
3236 fi
3237done
671aa708
NN		 3238AC_SUBST_FILE(host_makefile_frag)
3239AC_SUBST_FILE(target_makefile_frag)
3240AC_SUBST_FILE(alphaieee_frag)
3241AC_SUBST_FILE(ospace_frag)
3242
3243# Miscellanea: directories, flags, etc.
671aa708 3244AC_SUBST(RPATH_ENVVAR)
d89f0ad6 3245AC_SUBST(GCC_SHLIB_SUBDIR)
671aa708
NN		 3246AC_SUBST(tooldir)
3247AC_SUBST(build_tooldir)
ef9db8d5 3248AC_SUBST(CONFIGURE_GDB_TK)
671aa708 3249AC_SUBST(GDB_TK)
ef9db8d5 3250AC_SUBST(INSTALL_GDB_TK)
671aa708
NN		 3251
3252# Build module lists & subconfigure args.
671aa708 3253AC_SUBST(build_configargs)
23f6b2f9 3254AC_SUBST(build_configdirs)
671aa708
NN		 3255
3256# Host module lists & subconfigure args.
3257AC_SUBST(host_configargs)
3258AC_SUBST(configdirs)
aae29963 3259AC_SUBST(target_configdirs)
671aa708
NN		 3260
3261# Target module lists & subconfigure args.
671aa708 3262AC_SUBST(target_configargs)
ee2312f3 3263
671aa708
NN		 3264
3265# Build tools.
0999159b
PB		 3266AC_SUBST(AR_FOR_BUILD)
3267AC_SUBST(AS_FOR_BUILD)
671aa708 3268AC_SUBST(CC_FOR_BUILD)
0999159b
PB		 3269AC_SUBST(CFLAGS_FOR_BUILD)
3270AC_SUBST(CXXFLAGS_FOR_BUILD)
3271AC_SUBST(CXX_FOR_BUILD)
3272AC_SUBST(DLLTOOL_FOR_BUILD)
0999159b 3273AC_SUBST(GFORTRAN_FOR_BUILD)
632e2a07 3274AC_SUBST(GOC_FOR_BUILD)
b4c522fa 3275AC_SUBST(GDC_FOR_BUILD)
0999159b
PB		 3276AC_SUBST(LDFLAGS_FOR_BUILD)
3277AC_SUBST(LD_FOR_BUILD)
3278AC_SUBST(NM_FOR_BUILD)
3279AC_SUBST(RANLIB_FOR_BUILD)
3280AC_SUBST(WINDMC_FOR_BUILD)
3281AC_SUBST(WINDRES_FOR_BUILD)
671aa708 3282
2abefe3d
PB		 3283# Generate default definitions for YACC, M4, LEX and other programs that run
3284# on the build machine. These are used if the Makefile can't locate these
3285# programs in objdir.
3286MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3287
3288AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3289case " $build_configdirs " in
3290 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2abefe3d
PB		 3291esac
3292
3293AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3294case " $build_configdirs " in
3295 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3296esac
3297
3298AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3299case " $build_configdirs " in
3300 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3301esac
3302
3303AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3304case " $build_configdirs " in
3305 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3306 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3307esac
3308
3309AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3310case " $build_configdirs " in
3311 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3312esac
3313
3314AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3315case " $build_configdirs " in
3316 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3317 *)
3318changequote(,)
d18ff35a 3319 # For an installed makeinfo, we require it to be from texinfo 4.7 or
2abefe3d
PB		 3320 # higher, else we use the "missing" dummy.
3321 if ${MAKEINFO} --version \
d18ff35a 3322 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
2abefe3d
PB		 3323 :
3324 else
3325 MAKEINFO="$MISSING makeinfo"
3326 fi
3327 ;;
3328changequote([,])
3329esac
3330
3331# FIXME: expect and dejagnu may become build tools?
3332
3333AC_CHECK_PROGS(EXPECT, expect, expect)
3334case " $configdirs " in
3335 *" expect "*)
3336 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3337 ;;
3338esac
3339
3340AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3341case " $configdirs " in
3342 *" dejagnu "*)
c394e891 3343 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2abefe3d
PB		 3344 ;;
3345esac
3346
3347
671aa708 3348# Host tools.
2693c0b0
PB		 3349NCN_STRICT_CHECK_TOOLS(AR, ar)
3350NCN_STRICT_CHECK_TOOLS(AS, as)
3351NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3352NCN_STRICT_CHECK_TOOLS(LD, ld)
2abefe3d 3353NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2693c0b0 3354NCN_STRICT_CHECK_TOOLS(NM, nm)
8927b7c0
RO		 3355NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3356NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
2693c0b0 3357NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
901119ae 3358NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
2693c0b0
PB		 3359NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3360NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
e4a9a572 3361NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
e7a82751 3362NCN_STRICT_CHECK_TOOLS(READELF, readelf)
671aa708
NN		 3363AC_SUBST(CC)
3364AC_SUBST(CXX)
3365AC_SUBST(CFLAGS)
3366AC_SUBST(CXXFLAGS)
671aa708 3367
2abefe3d 3368# Target tools.
e8b05380 3369AC_ARG_WITH([build-time-tools],
33e39b66
AS		 3370 [AS_HELP_STRING([--with-build-time-tools=PATH],
3371 [use given path to find target tools during the build])],
e8b05380
PB		 3372 [case x"$withval" in
3373 x/*) ;;
3374 *)
3375 with_build_time_tools=
3376 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3377 ;;
3378 esac],
3379 [with_build_time_tools=])
3380
2693c0b0
PB		 3381NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3382NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2693c0b0 3383NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2693c0b0 3384NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
632e2a07 3385NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
b4c522fa 3386NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
e8b05380
PB		 3387
3388ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3389ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3390ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3391ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3392ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3393ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
9bccfdf5 3394ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
e8b05380 3395ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
e4a9a572 3396ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
8927b7c0 3397ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
e7a82751 3398ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
e8b05380
PB		 3399ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3400ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
901119ae 3401ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
4de997d1 3402
2abefe3d
PB		 3403RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3404
3405GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3406GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3407GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
b3f122e0 3408dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
2abefe3d 3409GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2077db1b 3410 [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		 3411 c++)
3412GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2077db1b 3413 [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		 3414 c++)
3415GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3416GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2abefe3d
PB		 3417GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3418 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
632e2a07
ILT		 3419GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3420 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
b4c522fa
IB		 3421GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3422 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
2abefe3d
PB		 3423GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3424GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3425GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
ec8fd1c0 3426GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
2abefe3d 3427GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
e4a9a572 3428GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
2abefe3d 3429GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
e7a82751 3430GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
455c8f48 3431GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
2abefe3d 3432GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
901119ae 3433GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
4de997d1 3434
2abefe3d 3435AC_SUBST(FLAGS_FOR_TARGET)
4de997d1 3436AC_SUBST(RAW_CXX_FOR_TARGET)
be912515 3437
671aa708
NN		 3438# Certain tools may need extra flags.
3439AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3440RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3441NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
6599da04 3442
2abefe3d
PB		 3443# When building target libraries, except in a Canadian cross, we use
3444# the same toolchain as the compiler we just built.
3445COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3446COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3447COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3448if test $host = $build; then
3449 case " $configdirs " in
3450 *" gcc "*)
3451 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3452 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3453 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3454 ;;
3455 esac
3456fi
3457
3458AC_SUBST(COMPILER_AS_FOR_TARGET)
3459AC_SUBST(COMPILER_LD_FOR_TARGET)
3460AC_SUBST(COMPILER_NM_FOR_TARGET)
3461
ee03dc5e
AO		 3462AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3463AC_ARG_ENABLE(maintainer-mode,
33e39b66
AS		 3464[AS_HELP_STRING([--enable-maintainer-mode],
3465 [enable make rules and dependencies not useful
3466 (and sometimes confusing) to the casual installer])],
ee03dc5e
AO		 3467 USE_MAINTAINER_MODE=$enableval,
3468 USE_MAINTAINER_MODE=no)
3469AC_MSG_RESULT($USE_MAINTAINER_MODE)
3470AC_SUBST(MAINTAINER_MODE_TRUE)
3471AC_SUBST(MAINTAINER_MODE_FALSE)
3472if test "$USE_MAINTAINER_MODE" = yes; then
3473 MAINTAINER_MODE_TRUE=
3474 MAINTAINER_MODE_FALSE='#'
3475else
3476 MAINTAINER_MODE_TRUE='#'
3477 MAINTAINER_MODE_FALSE=
3478fi
3479MAINT=$MAINTAINER_MODE_TRUE
3480AC_SUBST(MAINT)dnl
3481
2805b53a
NN		 3482# ---------------------
3483# GCC bootstrap support
3484# ---------------------
3485
3486# Stage specific cflags for build.
3487stage1_cflags="-g"
3488case $build in
3489 vax-*-*)
3490 case ${GCC} in
3491 yes) stage1_cflags="-g -Wa,-J" ;;
3492 *) stage1_cflags="-g -J" ;;
3493 esac ;;
2805b53a 3494esac
0b50988a 3495
2805b53a
NN		 3496AC_SUBST(stage1_cflags)
3497
8efea775
PB		 3498# Enable --enable-checking in stage1 of the compiler.
3499AC_ARG_ENABLE(stage1-checking,
33e39b66
AS		 3500[AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3501 [choose additional checking for stage1 of the compiler])],
8efea775 3502[stage1_checking=--enable-checking=${enable_stage1_checking}],
e643dc23 3503[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
c10b5ea0
JJ		 3504 # For --disable-checking or implicit --enable-checking=release, avoid
3505 # setting --enable-checking=gc in the default stage1 checking for LTO
3506 # bootstraps. See PR62077.
c10b5ea0
JJ		 3507 case $BUILD_CONFIG in
3508 *lto*)
7db11a5a
JJ		 3509 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3510 *)
3511 stage1_checking=--enable-checking=yes,types;;
c10b5ea0 3512 esac
7db11a5a
JJ		 3513 if test "x$enable_checking" = x && \
3514 test -d ${srcdir}/gcc && \
3515 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
c100769b 3516 stage1_checking=--enable-checking=yes,types,extra
7db11a5a 3517 fi
8efea775 3518else
e643dc23 3519 stage1_checking=--enable-checking=$enable_checking,types
8efea775
PB		 3520fi])
3521AC_SUBST(stage1_checking)
3522
2805b53a 3523# Enable -Werror in bootstrap stage2 and later.
2805b53a 3524AC_ARG_ENABLE(werror,
33e39b66 3525[AS_HELP_STRING([--enable-werror],
afd88efc
ML		 3526 [enable -Werror in bootstrap stage2 and later])],
3527[
09a9c095
NN		 3528case ${enable_werror} in
3529 yes) stage2_werror_flag="--enable-werror-always" ;;
3530 *) stage2_werror_flag="" ;;
2805b53a 3531esac
afd88efc
ML		 3532],
3533[
01c712cb
ML		 3534if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3535 case $BUILD_CONFIG in
3536 bootstrap-debug)
3537 stage2_werror_flag="--enable-werror-always" ;;
3538 "")
3539 stage2_werror_flag="--enable-werror-always" ;;
3540 esac
3541fi
afd88efc 3542])
01c712cb 3543
09a9c095 3544AC_SUBST(stage2_werror_flag)
2805b53a 3545
f2689b09
SE		 3546# Specify what files to not compare during bootstrap.
3547
3548compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3549case "$target" in
3550 hppa*64*-*-hpux*) ;;
510555e0 3551 hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;;
d7a29167 3552 powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *libgomp*\$(objext)" ;;
f2689b09
SE		 3553esac
3554AC_SUBST(compare_exclusions)
3555
3e54529c
RW		 3556AC_CONFIG_FILES([Makefile],
3557 [sed "$extrasub_build" Makefile |
3558 sed "$extrasub_host" |
3559 sed "$extrasub_target" > mf$$
3560 mv -f mf$$ Makefile],
3561 [extrasub_build="$extrasub_build"
3562 extrasub_host="$extrasub_host"
3563 extrasub_target="$extrasub_target"])
3564AC_OUTPUT
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