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libstdc++: Fix _GLIBCXX_DEBUG mode constexpr compatibility
[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,
98e5be21 3# 2014, 2015, 2016, 2019 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)
ffac9597 26m4_include(config/ax_cxx_compile_stdcxx.m4)
592c90ff
KG		 27m4_include([libtool.m4])
28m4_include([ltoptions.m4])
29m4_include([ltsugar.m4])
30m4_include([ltversion.m4])
31m4_include([lt~obsolete.m4])
33ad93b9 32m4_include([config/isl.m4])
ad6717df 33
671aa708 34AC_INIT(move-if-change)
0115d4a3 35AC_DISABLE_OPTION_CHECKING
1c710c3c 36
ad33ff57
RW		 37progname=$0
38# if PWD already has a value, it is probably wrong.
39if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
40
41# Export original configure arguments for use by sub-configures.
42# Quote arguments with shell meta charatcers.
43TOPLEVEL_CONFIGURE_ARGUMENTS=
44set -- "$progname" "$@"
45for ac_arg
46do
47 case "$ac_arg" in
48 *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
49 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
50 # if the argument is of the form -foo=baz, quote the baz part only
51 ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
52 *) ;;
53 esac
54 # Add the quoted argument to the list.
55 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
56done
57if test "$silent" = yes; then
58 TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
59fi
60# Remove the initial space we just introduced and, as these will be
61# expanded by make, quote '$'.
62TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
63AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
64
1c710c3c
DJ		 65# Find the build, host, and target systems.
66ACX_NONCANONICAL_BUILD
67ACX_NONCANONICAL_HOST
68ACX_NONCANONICAL_TARGET
69
70dnl Autoconf 2.5x and later will set a default program prefix if
71dnl --target was used, even if it was the same as --host. Disable
72dnl that behavior. This must be done before AC_CANONICAL_SYSTEM
73dnl to take effect.
74test "$host_noncanonical" = "$target_noncanonical" &&
75 test "$program_prefix$program_suffix$program_transform_name" = \
76 NONENONEs,x,x, &&
77 program_transform_name=s,y,y,
78
671aa708
NN		 79AC_CANONICAL_SYSTEM
80AC_ARG_PROGRAM
81
1c710c3c 82m4_pattern_allow([^AS_FOR_TARGET$])dnl
0999159b 83m4_pattern_allow([^AS_FOR_BUILD$])dnl
1c710c3c 84
775956d0
NN		 85# Get 'install' or 'install-sh' and its variants.
86AC_PROG_INSTALL
ad6717df 87ACX_PROG_LN
148907ea 88AC_PROG_LN_S
87264276
PB		 89AC_PROG_SED
90AC_PROG_AWK
775956d0 91
fc45f3fe
DJ		 92srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
93
94# We pass INSTALL explicitly to sub-makes. Make sure that it is not
95# a relative path.
96if test "$INSTALL" = "${srcdir}/install-sh -c"; then
97 INSTALL="${srcpwd}/install-sh -c"
98fi
99
671aa708
NN		 100# Set srcdir to "." if that's what it is.
101# This is important for multilib support.
102pwd=`${PWDCMD-pwd}`
671aa708
NN		 103if test "${pwd}" = "${srcpwd}" ; then
104 srcdir=.
105fi
106
107topsrcdir=$srcpwd
6599da04 108
4977bab6 109extra_host_args=
afabd8e6 110
6599da04
JM		 111### To add a new directory to the tree, first choose whether it is a target
112### or a host dependent tool. Then put it into the appropriate list
4977bab6
ZW		 113### (library or tools, host or target), doing a dependency sort.
114
115# Subdirs will be configured in the order listed in build_configdirs,
116# configdirs, or target_configdirs; see the serialization section below.
117
118# Dependency sorting is only needed when *configuration* must be done in
119# a particular order. In all cases a dependency should be specified in
120# the Makefile, whether or not it's implicitly specified here.
6599da04 121
4977bab6
ZW		 122# Double entries in build_configdirs, configdirs, or target_configdirs may
123# cause circular dependencies and break everything horribly.
6599da04 124
23f6b2f9
PB		 125# these library is used by various programs built for the build
126# environment
127#
929315a9 128build_libs="build-libiberty build-libcpp"
23f6b2f9
PB		 129
130# these tools are built for the build environment
85bfb75e 131build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
23f6b2f9 132
6599da04 133# these libraries are used by various programs built for the host environment
eae1a5d4 134#f
de6abd85 135host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv libctf"
6599da04 136
6599da04
JM		 137# these tools are built for the host environment
138# Note, the powerpc-eabi build depends on sim occurring before gdb in order to
139# know that we are building the simulator.
4977bab6
ZW		 140# binutils, gas and ld appear in that order because it makes sense to run
141# "make check" in that particular order.
38e3d868 142# If --enable-gold is used, "gold" may replace "ld".
f9d09df0 143host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gotools"
5d4a5ee6 144
6599da04
JM		 145# these libraries are built for the target environment, and are built after
146# the host libraries and the host tools (which may be a cross compiler)
8499116a 147# Note that libiberty is not a target library.
291f172e 148target_libraries="target-libgcc \
eff02e4f 149 target-libbacktrace \
5d4a5ee6
JL		 150 target-libgloss \
151 target-newlib \
6d3b5aea 152 target-libgomp \
5f520819 153 target-liboffloadmic \
5fd1486c 154 target-libhsail-rt \
48310492 155 target-libatomic \
0a35513e 156 target-libitm \
cb543528 157 target-libstdc++-v3 \
f35db108 158 target-libsanitizer \
2077db1b 159 target-libvtv \
77008252 160 target-libssp \
1ec601bf 161 target-libquadmath \
6de9cd9a 162 target-libgfortran \
012447ea 163 target-libffi \
d9cdb878 164 target-libobjc \
632e2a07 165 target-libada \
b4c522fa 166 target-libgo \
bb50312e
IB		 167 target-libphobos \
168 target-zlib"
6599da04 169
4dbda6f0
NN		 170# these tools are built using the target libraries, and are intended to
171# run only in the target environment
6599da04 172#
4dbda6f0 173# note: any program that *uses* libraries that are in the "target_libraries"
1bcce263 174# list belongs in this list.
6599da04 175#
85bfb75e 176target_tools="target-rda"
6599da04
JM		 177
178################################################################################
179
6599da04
JM		 180## All tools belong in one of the four categories, and are assigned above
181## We assign ${configdirs} this way to remove all embedded newlines. This
182## is important because configure will choke if they ever get through.
183## ${configdirs} is directories we build using the host tools.
184## ${target_configdirs} is directories we build using the target tools.
6599da04 185configdirs=`echo ${host_libs} ${host_tools}`
4dbda6f0 186target_configdirs=`echo ${target_libraries} ${target_tools}`
71b5d516 187build_configdirs=`echo ${build_libs} ${build_tools}`
8b87bb96 188
ac9e6043 189m4_divert_text([PARSE_ARGS],
87841584
AM		 190[case $srcdir in
191 *" "*)
192m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
193 AC_MSG_ERROR([path to source, $srcdir, contains spaces])
194m4_popdef([AS_MESSAGE_LOG_FD])dnl
195 ;;
196esac
197ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
ac9e6043
RW		 198])
199
6599da04
JM		 200################################################################################
201
6599da04
JM		 202srcname="gnu development package"
203
204# This gets set non-empty for some net releases of packages.
205appdirs=""
206
e1848dde
NN		 207# Define is_cross_compiler to save on calls to 'test'.
208is_cross_compiler=
209if test x"${host}" = x"${target}" ; then
210 is_cross_compiler=no
211else
212 is_cross_compiler=yes
213fi
214
b4acb5ef 215# Find the build and target subdir names.
8b87bb96 216GCC_TOPLEV_SUBDIRS
0db770bd
RW		 217# Be sure to cover against remnants of an in-tree build.
218if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
219 AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
220Use a pristine source tree when building in a separate tree])
221fi
f653f0ab 222
55380b08
NN		 223# Skipdirs are removed silently.
224skipdirs=
225# Noconfigdirs are removed loudly.
226noconfigdirs=""
6599da04 227
55380b08
NN		 228use_gnu_ld=
229# Make sure we don't let GNU ld be added if we didn't want it.
230if test x$with_gnu_ld = xno ; then
231 use_gnu_ld=no
5afab7ad 232 noconfigdirs="$noconfigdirs ld gold"
6599da04
JM		 233fi
234
55380b08
NN		 235use_gnu_as=
236# Make sure we don't let GNU as be added if we didn't want it.
237if test x$with_gnu_as = xno ; then
238 use_gnu_as=no
239 noconfigdirs="$noconfigdirs gas"
6599da04
JM		 240fi
241
d7f09764 242use_included_zlib=
a05c2c75
L		 243AC_ARG_WITH(system-zlib,
244[AS_HELP_STRING([--with-system-zlib], [use installed libz])])
d7f09764
DN		 245# Make sure we don't let ZLIB be added if we didn't want it.
246if test x$with_system_zlib = xyes ; then
247 use_included_zlib=no
248 noconfigdirs="$noconfigdirs zlib"
249fi
250
55380b08
NN		 251# some tools are so dependent upon X11 that if we're not building with X,
252# it's not even worth trying to configure, much less build, that tool.
6599da04 253
55380b08
NN		 254case ${with_x} in
255 yes | "") ;; # the default value for this tree is that X11 is available
423ce3eb 256 no)
b4f96efe 257 skipdirs="${skipdirs} tk itcl libgui"
423ce3eb
NN		 258 # We won't be able to build gdbtk without X.
259 enable_gdbtk=no
260 ;;
55380b08
NN		 261 *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
262esac
6599da04 263
1bcce263 264# Some are only suitable for cross toolchains.
95ddd785
NN		 265# Remove these if host=target.
266cross_only="target-libgloss target-newlib target-opcodes"
6599da04 267
55380b08
NN		 268case $is_cross_compiler in
269 no) skipdirs="${skipdirs} ${cross_only}" ;;
55380b08 270esac
6599da04 271
0c639b89
DD		 272# If both --with-headers and --with-libs are specified, default to
273# --without-newlib.
9082a750
MR		 274if test x"${with_headers}" != x && test x"${with_headers}" != xno \
275 && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
0c639b89
DD		 276 if test x"${with_newlib}" = x ; then
277 with_newlib=no
278 fi
279fi
280
281# Recognize --with-newlib/--without-newlib.
282case ${with_newlib} in
283 no) skipdirs="${skipdirs} target-newlib" ;;
284 yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
285esac
286
85c64bbe
BS		 287AC_ARG_ENABLE(as-accelerator-for,
288[AS_HELP_STRING([--enable-as-accelerator-for=ARG],
289 [build as offload target compiler.
4b4f2e35 290 Specify offload host triple by ARG])])
85c64bbe
BS		 291
292AC_ARG_ENABLE(offload-targets,
293[AS_HELP_STRING([--enable-offload-targets=LIST],
294 [enable offloading to devices from comma-separated LIST of
295 TARGET[=DIR]. Use optional path to find offload target compiler
296 during the build])],
297[
298 if test x"$enable_offload_targets" = x; then
299 AC_MSG_ERROR([no offload targets specified])
300 fi
301], [enable_offload_targets=])
302
21539e2e
MK		 303# Handle --enable-gold, --enable-ld.
304# --disable-gold [--enable-ld]
305# Build only ld. Default option.
9580395f
L		 306# --enable-gold [--enable-ld]
307# Build both gold and ld. Install gold as "ld.gold", install ld
308# as "ld.bfd" and "ld".
309# --enable-gold=default [--enable-ld]
21539e2e
MK		 310# Build both gold and ld. Install gold as "ld.gold" and "ld",
311# install ld as "ld.bfd".
312# --enable-gold[=default] --disable-ld
313# Build only gold, which is then installed as both "ld.gold" and "ld".
314# --enable-gold --enable-ld=default
9580395f
L		 315# Build both gold (installed as "ld.gold") and ld (installed as "ld"
316# and ld.bfd).
21539e2e
MK		 317# In other words, ld is default
318# --enable-gold=default --enable-ld=default
319# Error.
320
321default_ld=
5afab7ad 322AC_ARG_ENABLE(gold,
33e39b66
AS		 323[AS_HELP_STRING([[--enable-gold[=ARG]]],
324 [build gold @<:@ARG={default,yes,no}@:>@])],
5afab7ad
ILT		 325ENABLE_GOLD=$enableval,
326ENABLE_GOLD=no)
21539e2e
MK		 327case "${ENABLE_GOLD}" in
328 yes|default)
38e3d868
RM		 329 # Check for ELF target.
330 is_elf=no
331 case "${target}" in
332 *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
0e76460f 333 | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
8c6d158a 334 | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
ff4b7a7e 335 | *-*-solaris2* | *-*-nto* | *-*-nacl*)
38e3d868
RM		 336 case "${target}" in
337 *-*-linux*aout* | *-*-linux*oldld*)
338 ;;
339 *)
340 is_elf=yes
341 ;;
342 esac
343 esac
344
345 if test "$is_elf" = "yes"; then
346 # Check for target supported by gold.
5afab7ad 347 case "${target}" in
7705dfd1 348 i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
1b858e76 349 | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-*)
21539e2e
MK		 350 configdirs="$configdirs gold"
351 if test x${ENABLE_GOLD} = xdefault; then
352 default_ld=gold
353 fi
38e3d868 354 ENABLE_GOLD=yes
5afab7ad
ILT		 355 ;;
356 esac
38e3d868
RM		 357 fi
358 ;;
359 no)
360 ;;
361 *)
362 AC_MSG_ERROR([invalid --enable-gold argument])
363 ;;
21539e2e
MK		 364esac
365
366AC_ARG_ENABLE(ld,
33e39b66
AS		 367[AS_HELP_STRING([[--enable-ld[=ARG]]],
368 [build ld @<:@ARG={default,yes,no}@:>@])],
21539e2e
MK		 369ENABLE_LD=$enableval,
370ENABLE_LD=yes)
371
372case "${ENABLE_LD}" in
373 default)
9580395f 374 if test x${default_ld} != x; then
21539e2e
MK		 375 AC_MSG_ERROR([either gold or ld can be the default ld])
376 fi
377 ;;
378 yes)
379 ;;
380 no)
381 if test x${ENABLE_GOLD} != xyes; then
382 AC_MSG_WARN([neither ld nor gold are enabled])
383 fi
384 configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
385 ;;
386 *)
387 AC_MSG_ERROR([invalid --enable-ld argument])
388 ;;
389esac
5afab7ad 390
78edb32f
L		 391# PR gas/19109
392# Decide the default method for compressing debug sections.
393# Provide a configure time option to override our default.
394AC_ARG_ENABLE(compressed_debug_sections,
324402a0 395[AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}],
78edb32f
L		 396 [Enable compressed debug sections for gas, gold or ld by
397 default])],
398[
399 if test x"$enable_compressed_debug_sections" = xyes; then
400 AC_MSG_ERROR([no program with compressed debug sections specified])
401 fi
402], [enable_compressed_debug_sections=])
403
6599da04
JM		 404# Configure extra directories which are host specific
405
406case "${host}" in
55380b08 407 *-cygwin*)
4977bab6 408 configdirs="$configdirs libtermcap" ;;
6599da04
JM		 409esac
410
4fab7234
HPN		 411# A target can indicate whether a language isn't supported for some reason.
412# Only spaces may be used in this macro; not newlines or tabs.
413unsupported_languages=
414
6599da04
JM		 415# Remove more programs from consideration, based on the host or
416# target this usually means that a port of the program doesn't
417# exist yet.
418
6599da04 419case "${host}" in
111eeb6e 420 i[[3456789]]86-*-msdosdjgpp*)
c9bdb152 421 noconfigdirs="$noconfigdirs tcl tk itcl"
5d4a5ee6 422 ;;
6599da04
JM		 423esac
424
6de9cd9a 425
87e6d9dc
TB		 426AC_ARG_ENABLE(libquadmath,
427AS_HELP_STRING([--disable-libquadmath],
428 [do not build libquadmath directory]),
429ENABLE_LIBQUADMATH=$enableval,
430ENABLE_LIBQUADMATH=yes)
431if test "${ENABLE_LIBQUADMATH}" = "no" ; then
432 noconfigdirs="$noconfigdirs target-libquadmath"
433fi
434
435
436AC_ARG_ENABLE(libquadmath-support,
437AS_HELP_STRING([--disable-libquadmath-support],
438 [disable libquadmath support for Fortran]),
439ENABLE_LIBQUADMATH_SUPPORT=$enableval,
440ENABLE_LIBQUADMATH_SUPPORT=yes)
441enable_libquadmath_support=
442if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
443 enable_libquadmath_support=no
444fi
445
446
d9cdb878 447AC_ARG_ENABLE(libada,
33e39b66 448[AS_HELP_STRING([--enable-libada], [build libada directory])],
d9cdb878
AC		 449ENABLE_LIBADA=$enableval,
450ENABLE_LIBADA=yes)
451if test "${ENABLE_LIBADA}" != "yes" ; then
5395b47b 452 noconfigdirs="$noconfigdirs gnattools"
d9cdb878
AC		 453fi
454
ef0087a7 455AC_ARG_ENABLE(libssp,
33e39b66 456[AS_HELP_STRING([--enable-libssp], [build libssp directory])],
ef0087a7
KH		 457ENABLE_LIBSSP=$enableval,
458ENABLE_LIBSSP=yes)
ef0087a7 459
2588b26e
RM		 460AC_ARG_ENABLE(libstdcxx,
461AS_HELP_STRING([--disable-libstdcxx],
462 [do not build libstdc++-v3 directory]),
463ENABLE_LIBSTDCXX=$enableval,
464ENABLE_LIBSTDCXX=default)
465[if test "${ENABLE_LIBSTDCXX}" = "no" ; then
1007a55c 466 noconfigdirs="$noconfigdirs target-libstdc++-v3"
2588b26e
RM		 467fi]
468
5f520819
KY		 469# If this is accelerator compiler and its target is intelmic we enable
470# target liboffloadmic by default. If this is compiler with offloading
471# for intelmic we enable host liboffloadmic by default. Otherwise
472# liboffloadmic is disabled by default.
473AC_ARG_ENABLE([liboffloadmic],
474AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
475 [build liboffloadmic @<:@ARG={no,host,target}@:>@]),
476[case "$enableval" in
477 no | host | target)
478 enable_liboffloadmic=$enableval ;;
479 *)
480 AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
481esac],
4b4f2e35 482[if test x"$enable_as_accelerator_for" != x; then
5f520819
KY		 483 case "${target}" in
484 *-intelmic-* | *-intelmicemul-*)
485 enable_liboffloadmic=target
486 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
487 ;;
488 *)
489 enable_liboffloadmic=no
490 ;;
491 esac
492else
493 case "${enable_offload_targets}" in
494 *-intelmic-* | *-intelmicemul-*)
495 enable_liboffloadmic=host
496 extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
497 ;;
498 *)
499 enable_liboffloadmic=no
500 ;;
501 esac
502fi])
503AC_SUBST(extra_liboffloadmic_configure_flags)
504
44a7d18d 505# Enable libgomp by default on hosted POSIX systems, and a few others.
27079765 506if test x$enable_libgomp = x ; then
953ff289 507 case "${target}" in
416ac4d4 508 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
953ff289 509 ;;
8c6d158a 510 *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
953ff289 511 ;;
b24513a1 512 *-*-solaris2* | *-*-hpux11*)
953ff289 513 ;;
cac90078 514 *-*-darwin* | *-*-aix*)
953ff289 515 ;;
29b1533a 516 nvptx*-*-* | amdgcn*-*-*)
44a7d18d 517 ;;
953ff289
DN		 518 *)
519 noconfigdirs="$noconfigdirs target-libgomp"
520 ;;
521 esac
27079765 522fi
953ff289 523
48310492
RH		 524# Disable libatomic on unsupported systems.
525if test -d ${srcdir}/libatomic; then
526 if test x$enable_libatomic = x; then
527 AC_MSG_CHECKING([for libatomic support])
528 if (srcdir=${srcdir}/libatomic; \
529 . ${srcdir}/configure.tgt; \
530 test -n "$UNSUPPORTED")
531 then
532 AC_MSG_RESULT([no])
533 noconfigdirs="$noconfigdirs target-libatomic"
534 else
535 AC_MSG_RESULT([yes])
536 fi
537 fi
538fi
539
5f520819
KY		 540# Disable liboffloadmic on unsupported systems.
541if test -d ${srcdir}/liboffloadmic; then
542 if test x$enable_liboffloadmic != xno; then
543 AC_MSG_CHECKING([for liboffloadmic support])
544 if (srcdir=${srcdir}/liboffloadmic; \
545 . ${srcdir}/configure.tgt; \
546 test -n "$UNSUPPORTED")
547 then
548 AC_MSG_RESULT([no])
549 noconfigdirs="$noconfigdirs target-liboffloadmic"
550 else
551 AC_MSG_RESULT([yes])
552 fi
553 fi
554fi
555
e948157d
RH		 556# Disable libitm on unsupported systems.
557if test -d ${srcdir}/libitm; then
558 if test x$enable_libitm = x; then
559 AC_MSG_CHECKING([for libitm support])
560 if (srcdir=${srcdir}/libitm; \
561 . ${srcdir}/configure.tgt; \
562 test -n "$UNSUPPORTED")
563 then
564 AC_MSG_RESULT([no])
565 noconfigdirs="$noconfigdirs target-libitm"
566 else
567 AC_MSG_RESULT([yes])
568 fi
569 fi
0a35513e
AH		 570fi
571
93bf5390
RH		 572# Disable libsanitizer on unsupported systems.
573if test -d ${srcdir}/libsanitizer; then
574 if test x$enable_libsanitizer = x; then
575 AC_MSG_CHECKING([for libsanitizer support])
576 if (srcdir=${srcdir}/libsanitizer; \
577 . ${srcdir}/configure.tgt; \
578 test -n "$UNSUPPORTED")
579 then
580 AC_MSG_RESULT([no])
581 noconfigdirs="$noconfigdirs target-libsanitizer"
582 else
583 AC_MSG_RESULT([yes])
584 fi
585 fi
586fi
587
2077db1b
CT		 588# Disable libvtv on unsupported systems.
589if test -d ${srcdir}/libvtv; then
590 if test x$enable_libvtv = x; then
591 AC_MSG_CHECKING([for libvtv support])
592 if (srcdir=${srcdir}/libvtv; \
593 . ${srcdir}/configure.tgt; \
1e74b850 594 test "$VTV_SUPPORTED" != "yes")
2077db1b
CT		 595 then
596 AC_MSG_RESULT([no])
597 noconfigdirs="$noconfigdirs target-libvtv"
598 else
599 AC_MSG_RESULT([yes])
600 fi
601 fi
602fi
603
5373cd33 604
f6a24a94
MJ		 605# Disable libhsail-rt on unsupported systems.
606if test -d ${srcdir}/libhsail-rt; then
607 if test x$enable_libhsail_rt = x; then
608 AC_MSG_CHECKING([for libhsail-rt support])
609 if (srcdir=${srcdir}/libhsail-rt; \
610 . ${srcdir}/configure.tgt; \
611 test -n "$UNSUPPORTED")
612 then
613 AC_MSG_RESULT([no])
614 unsupported_languages="$unsupported_languages brig"
615 # This implicitly disables also target-libhsail-rt as it won't
616 # get added to the build without BRIG FE.
617 else
618 AC_MSG_RESULT([yes])
619 fi
620 fi
621fi
5373cd33
IE		 622
623
d7a29167
DE		 624# Disable libquadmath for some systems.
625case "${target}" in
e7fae550
DE		 626 avr-*-*)
627 noconfigdirs="$noconfigdirs target-libquadmath"
628 ;;
d7a29167
DE		 629 # libquadmath is unused on AIX and libquadmath build process use of
630 # LD_LIBRARY_PATH can break AIX bootstrap.
631 powerpc-*-aix* | rs6000-*-aix*)
632 noconfigdirs="$noconfigdirs target-libquadmath"
633 ;;
634esac
635
1e9e0e23
JM		 636# Disable libssp for some systems.
637case "${target}" in
638 avr-*-*)
b318fb4b 639 # No hosted I/O support.
1e9e0e23
JM		 640 noconfigdirs="$noconfigdirs target-libssp"
641 ;;
91dfef96
JM		 642 bpf-*-*)
643 noconfigdirs="$noconfigdirs target-libssp"
644 ;;
1e9e0e23
JM		 645 powerpc-*-aix* | rs6000-*-aix*)
646 noconfigdirs="$noconfigdirs target-libssp"
647 ;;
8d2af3a2
DD		 648 pru-*-*)
649 # No hosted I/O support.
650 noconfigdirs="$noconfigdirs target-libssp"
651 ;;
85b8555e
DD		 652 rl78-*-*)
653 # libssp uses a misaligned load to trigger a fault, but the RL78
654 # doesn't fault for those - instead, it gives a build-time error
655 # for explicit misaligned loads.
656 noconfigdirs="$noconfigdirs target-libssp"
657 ;;
0969ec7d
EB		 658 visium-*-*)
659 # No hosted I/O support.
660 noconfigdirs="$noconfigdirs target-libssp"
661 ;;
1e9e0e23
JM		 662esac
663
1e9e0e23 664# Disable libstdc++-v3 for some systems.
2588b26e
RM		 665# Allow user to override this if they pass --enable-libstdc++-v3
666if test "${ENABLE_LIBSTDCXX}" = "default" ; then
667 case "${target}" in
668 *-*-vxworks*)
669 # VxWorks uses the Dinkumware C++ library.
670 noconfigdirs="$noconfigdirs target-libstdc++-v3"
671 ;;
afa3d80e
TS		 672 amdgcn*-*-*)
673 # Not ported/fails to build when using newlib.
674 noconfigdirs="$noconfigdirs target-libstdc++-v3"
675 ;;
2588b26e
RM		 676 arm*-wince-pe*)
677 # the C++ libraries don't build on top of CE's C libraries
678 noconfigdirs="$noconfigdirs target-libstdc++-v3"
679 ;;
680 avr-*-*)
681 noconfigdirs="$noconfigdirs target-libstdc++-v3"
682 ;;
91dfef96
JM		 683 bpf-*-*)
684 noconfigdirs="$noconfigdirs target-libstdc++-v3"
685 ;;
fef939d6
JB		 686 ft32-*-*)
687 noconfigdirs="$noconfigdirs target-libstdc++-v3"
688 ;;
2588b26e
RM		 689 esac
690fi
1e9e0e23 691
91dfef96
JM		 692# Disable C++ on systems where it is known to not work.
693# For testing, you can override this with --enable-languages=c++.
694case ,${enable_languages}, in
695 *,c++,*)
696 ;;
697 *)
698 case "${target}" in
699 bpf-*-*)
700 unsupported_languages="$unsupported_languages c++"
701 ;;
702 esac
703 ;;
704esac
705
706# Disable Objc on systems where it is known to not work.
707# For testing, you can override this with --enable-languages=objc.
708case ,${enable_languages}, in
709 *,objc,*)
710 ;;
711 *)
712 case "${target}" in
713 bpf-*-*)
714 unsupported_languages="$unsupported_languages objc"
715 ;;
716 esac
717 ;;
718esac
719
260eedb9
IB		 720# Disable D on systems where it is known to not work.
721# For testing, you can override this with --enable-languages=d.
722case ,${enable_languages}, in
723 *,d,*)
724 ;;
725 *)
726 case "${target}" in
91dfef96 727 bpf-*-*)
260eedb9
IB		 728 unsupported_languages="$unsupported_languages d"
729 ;;
730 esac
731 ;;
732esac
733
734# Disable libphobos on unsupported systems.
735# For testing, you can override this with --enable-libphobos.
736if test -d ${srcdir}/libphobos; then
737 if test x$enable_libphobos = x; then
738 AC_MSG_CHECKING([for libphobos support])
739 if (srcdir=${srcdir}/libphobos; \
740 . ${srcdir}/configure.tgt; \
7d31d331 741 test "$LIBPHOBOS_SUPPORTED" != "yes")
260eedb9
IB		 742 then
743 AC_MSG_RESULT([no])
744 noconfigdirs="$noconfigdirs target-libphobos"
745 else
746 AC_MSG_RESULT([yes])
747 fi
748 fi
749fi
750
1e9e0e23
JM		 751# Disable Fortran for some systems.
752case "${target}" in
753 mmix-*-*)
754 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
755 unsupported_languages="$unsupported_languages fortran"
756 ;;
91dfef96
JM		 757 bpf-*-*)
758 unsupported_languages="$unsupported_languages fortran"
759 ;;
1e9e0e23
JM		 760esac
761
012447ea
JJ		 762# Disable libffi for some systems.
763case "${target}" in
764 powerpc-*-darwin*)
765 ;;
766 i[[3456789]]86-*-darwin*)
767 ;;
768 x86_64-*-darwin[[912]]*)
769 ;;
770 *-*-darwin*)
771 noconfigdirs="$noconfigdirs target-libffi"
772 ;;
773 *-*-netware*)
774 noconfigdirs="$noconfigdirs target-libffi"
775 ;;
776 *-*-phoenix*)
777 noconfigdirs="$noconfigdirs target-libffi"
778 ;;
779 *-*-rtems*)
780 noconfigdirs="$noconfigdirs target-libffi"
781 ;;
782 *-*-tpf*)
783 noconfigdirs="$noconfigdirs target-libffi"
784 ;;
785 *-*-uclinux*)
786 noconfigdirs="$noconfigdirs target-libffi"
787 ;;
788 *-*-vxworks*)
789 noconfigdirs="$noconfigdirs target-libffi"
790 ;;
b20e7532
AT		 791 aarch64*-*-freebsd*)
792 noconfigdirs="$noconfigdirs target-libffi"
793 ;;
012447ea
JJ		 794 alpha*-*-*vms*)
795 noconfigdirs="$noconfigdirs target-libffi"
796 ;;
797 arm*-*-freebsd*)
798 noconfigdirs="$noconfigdirs target-libffi"
799 ;;
800 arm-wince-pe)
801 noconfigdirs="$noconfigdirs target-libffi"
802 ;;
803 arm*-*-symbianelf*)
804 noconfigdirs="$noconfigdirs target-libffi"
805 ;;
91dfef96
JM		 806 bpf-*-*)
807 noconfigdirs="$noconfigdirs target-libffi"
808 ;;
012447ea
JJ		 809 cris-*-* | crisv32-*-*)
810 case "${target}" in
811 *-*-linux*)
812 ;;
813 *) # See PR46792 regarding target-libffi.
814 noconfigdirs="$noconfigdirs target-libffi";;
815 esac
816 ;;
817 hppa*64*-*-hpux*)
818 noconfigdirs="$noconfigdirs target-libffi"
819 ;;
820 hppa*-hp-hpux11*)
821 ;;
822 hppa*-*-hpux*)
823 noconfigdirs="$noconfigdirs target-libffi"
824 ;;
825 ia64*-*-*vms*)
826 noconfigdirs="$noconfigdirs target-libffi"
827 ;;
828 i[[3456789]]86-w64-mingw*)
829 noconfigdirs="$noconfigdirs target-libffi"
830 ;;
831 i[[3456789]]86-*-mingw*)
832 noconfigdirs="$noconfigdirs target-libffi"
833 ;;
834 x86_64-*-mingw*)
835 noconfigdirs="$noconfigdirs target-libffi"
836 ;;
837 mmix-*-*)
838 noconfigdirs="$noconfigdirs target-libffi"
839 ;;
840 powerpc-*-aix*)
012447ea
JJ		 841 ;;
842 rs6000-*-aix*)
012447ea
JJ		 843 ;;
844 ft32-*-*)
845 noconfigdirs="$noconfigdirs target-libffi"
846 ;;
847 *-*-lynxos*)
848 noconfigdirs="$noconfigdirs target-libffi"
849 ;;
850esac
851
852# Disable the go frontend on systems where it is known to not work. Please keep
853# this in sync with contrib/config-list.mk.
854case "${target}" in
91dfef96 855*-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
012447ea
JJ		 856 unsupported_languages="$unsupported_languages go"
857 ;;
858esac
859
f9d09df0
TT		 860# Only allow gdbserver on some systems.
861if test -d ${srcdir}/gdbserver; then
862 if test x$enable_gdbserver = x; then
863 AC_MSG_CHECKING([for gdbserver support])
864 if (srcdir=${srcdir}/gdbserver; \
865 . ${srcdir}/configure.srv; \
866 test -n "$UNSUPPORTED")
867 then
868 AC_MSG_RESULT([no])
869 noconfigdirs="$noconfigdirs gdbserver"
870 else
871 AC_MSG_RESULT([yes])
872 fi
873 fi
874fi
875
cdbc9e92
ILT		 876# Disable libgo for some systems where it is known to not work.
877# For testing, you can easily override this with --enable-libgo.
878if test x$enable_libgo = x; then
879 case "${target}" in
880 *-*-darwin*)
881 # PR 46986
882 noconfigdirs="$noconfigdirs target-libgo"
883 ;;
884 *-*-cygwin* | *-*-mingw*)
885 noconfigdirs="$noconfigdirs target-libgo"
886 ;;
91dfef96
JM		 887 bpf-*-*)
888 noconfigdirs="$noconfigdirs target-libgo"
889 ;;
cdbc9e92
ILT		 890 esac
891fi
892
c03353e2
RIL		 893# Default libgloss CPU subdirectory.
894libgloss_dir="$target_cpu"
6de9cd9a 895
fbcf0dca
JM		 896case "${target}" in
897 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
898 libgloss_dir=wince
899 ;;
4dddfc74
YZ		 900 aarch64*-*-* )
901 libgloss_dir=aarch64
902 ;;
fbcf0dca
JM		 903 arm*-*-*)
904 libgloss_dir=arm
905 ;;
906 cris-*-* | crisv32-*-*)
907 libgloss_dir=cris
908 ;;
909 hppa*-*-*)
910 libgloss_dir=pa
911 ;;
912 i[[3456789]]86-*-*)
913 libgloss_dir=i386
914 ;;
915 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
916 libgloss_dir=m68hc11
917 ;;
918 m68*-*-* | fido-*-*)
919 libgloss_dir=m68k
920 ;;
921 mips*-*-*)
922 libgloss_dir=mips
923 ;;
924 powerpc*-*-*)
925 libgloss_dir=rs6000
926 ;;
8d2af3a2
DD		 927 pru-*-*)
928 libgloss_dir=pru
929 ;;
fbcf0dca
JM		 930 sparc*-*-*)
931 libgloss_dir=sparc
932 ;;
933esac
934
6a789d5e 935# Disable newlib and libgloss for various target OSes.
6599da04 936case "${target}" in
6a789d5e
JM		 937 alpha*-dec-osf*)
938 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
939 ;;
940 i[[3456789]]86-*-linux*)
941 # This section makes it possible to build newlib natively on linux.
942 # If we are using a cross compiler then don't configure newlib.
943 if test x${is_cross_compiler} != xno ; then
944 noconfigdirs="$noconfigdirs target-newlib"
945 fi
946 noconfigdirs="$noconfigdirs target-libgloss"
947 # If we are not using a cross compiler, do configure newlib.
948 # Note however, that newlib will only be configured in this situation
949 # if the --with-newlib option has been given, because otherwise
950 # 'target-newlib' will appear in skipdirs.
951 ;;
952 i[[3456789]]86-*-rdos*)
953 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
954 ;;
955 sh*-*-pe|mips*-*-pe|arm-wince-pe)
956 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
957 ;;
958 sparc-*-sunos4*)
959 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
960 ;;
91dfef96
JM		 961 bpf-*-*)
962 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
963 ;;
6a789d5e
JM		 964 *-*-aix*)
965 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
966 ;;
967 *-*-beos*)
968 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
969 ;;
3fa03ff9 970 *-*-chorusos)
0036370f 971 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
3fa03ff9 972 ;;
6a789d5e
JM		 973 *-*-dragonfly*)
974 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
975 ;;
976 *-*-freebsd*)
977 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
978 ;;
979 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
980 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
981 ;;
982 *-*-lynxos*)
983 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
984 ;;
985 *-*-mingw*)
986 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
987 ;;
988 *-*-netbsd*)
989 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
990 ;;
991 *-*-netware*)
992 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
993 ;;
994 *-*-tpf*)
995 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
996 ;;
997 *-*-uclinux*)
998 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
999 ;;
1000 *-*-vxworks*)
1001 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1002 ;;
1003esac
1004
1005case "${target}" in
1006 *-*-chorusos)
1007 ;;
3be96231
TG		 1008 aarch64-*-darwin*)
1009 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1010 noconfigdirs="$noconfigdirs sim target-rda"
1011 ;;
7431c1a1
AS		 1012 amdgcn*-*-*)
1013 ;;
3be96231
TG		 1014 arm-*-darwin*)
1015 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1016 noconfigdirs="$noconfigdirs sim target-rda"
1017 ;;
75eeae1a 1018 powerpc-*-darwin*)
e1514c3f 1019 noconfigdirs="$noconfigdirs ld gas gdb gprof"
9c8f9ec2 1020 noconfigdirs="$noconfigdirs sim target-rda"
940cde4d 1021 ;;
354ebf88
RW		 1022 i[[3456789]]86-*-darwin*)
1023 noconfigdirs="$noconfigdirs ld gprof"
1024 noconfigdirs="$noconfigdirs sim target-rda"
1025 ;;
1026 x86_64-*-darwin[[912]]*)
0db3a858
TG		 1027 noconfigdirs="$noconfigdirs ld gas gprof"
1028 noconfigdirs="$noconfigdirs sim target-rda"
1029 ;;
42c1cd8a
AT		 1030 *-*-darwin*)
1031 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1032 noconfigdirs="$noconfigdirs sim target-rda"
42c1cd8a 1033 ;;
8c6d158a 1034 *-*-dragonfly*)
8c6d158a 1035 ;;
c3f84f61 1036 *-*-freebsd*)
6de9cd9a 1037 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
c0d0a722 1038 && ! test -d ${srcdir}/gmp \
6de9cd9a
DN		 1039 && test -f /usr/local/include/gmp.h; then
1040 with_gmp=/usr/local
1041 fi
6de9cd9a 1042 ;;
ef4e7569
US		 1043 *-*-kaos*)
1044 # Remove unsupported stuff on all kaOS configurations.
ef4e7569
US		 1045 noconfigdirs="$noconfigdirs target-libgloss"
1046 ;;
51584787 1047 *-*-netbsd*)
51584787 1048 ;;
61fec9ff 1049 *-*-netware*)
6599da04 1050 ;;
fd6487af
JS		 1051 *-*-phoenix*)
1052 noconfigdirs="$noconfigdirs target-libgloss"
1053 ;;
3fbc0b70 1054 *-*-rtems*)
2909494b 1055 noconfigdirs="$noconfigdirs target-libgloss"
3fbc0b70 1056 ;;
a8ba31f2
EC		 1057 # The tpf target doesn't support gdb yet.
1058 *-*-tpf*)
6a789d5e 1059 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
a8ba31f2 1060 ;;
5785c0ed 1061 *-*-uclinux*)
6a789d5e 1062 noconfigdirs="$noconfigdirs target-rda"
5785c0ed 1063 ;;
6599da04 1064 *-*-vxworks*)
6599da04 1065 ;;
b104e095 1066 alpha*-dec-osf*)
603606e7 1067 # ld works, but does not support shared libraries.
6599da04 1068 # gas doesn't generate exception information.
6a789d5e 1069 noconfigdirs="$noconfigdirs gas ld"
6599da04
JM		 1070 ;;
1071 alpha*-*-*vms*)
2909494b 1072 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
6599da04
JM		 1073 ;;
1074 alpha*-*-*)
1075 # newlib is not 64 bit ready
2909494b 1076 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1077 ;;
91dfef96
JM		 1078 bpf-*-*)
1079 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1080 ;;
3a685f6f 1081 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
b4f96efe 1082 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
3a685f6f 1083 ;;
2fd88f4f
AK		 1084 arc*-*-*)
1085 noconfigdirs="$noconfigdirs sim"
1086 ;;
6599da04 1087 arm-*-pe*)
2909494b 1088 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1089 ;;
5d4a5ee6 1090 arm-*-riscix*)
0036370f 1091 noconfigdirs="$noconfigdirs ld target-libgloss"
5d4a5ee6 1092 ;;
b588ae30
GJL		 1093 avr-*-*)
1094 if test x${with_avrlibc} != xno; then
1095 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1096 fi
1097 ;;
a5a438f5 1098 c4x-*-* | tic4x-*-*)
0036370f 1099 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1100 ;;
0036370f
JM		 1101 tic54x-*-*)
1102 noconfigdirs="$noconfigdirs target-libgloss gdb"
ab50d72b 1103 ;;
6599da04 1104 d10v-*-*)
0036370f 1105 noconfigdirs="$noconfigdirs target-libgloss"
d207ebef
JM		 1106 ;;
1107 d30v-*-*)
0036370f 1108 noconfigdirs="$noconfigdirs gdb"
6599da04 1109 ;;
09b5f8bf 1110 fr30-*-elf*)
2909494b 1111 noconfigdirs="$noconfigdirs gdb"
09b5f8bf 1112 ;;
a05c2c75
L		 1113 ft32-*-*)
1114 noconfigdirs="$noconfigdirs target-rda gprof"
1115 ;;
55f2d967 1116 moxie-*-*)
a05c2c75 1117 noconfigdirs="$noconfigdirs"
55f2d967 1118 ;;
ab50d72b 1119 h8300*-*-*)
2909494b 1120 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1121 ;;
6599da04 1122 h8500-*-*)
0036370f 1123 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1124 ;;
9d069a4f 1125 hppa1.1-*-osf* | hppa1.1-*-bsd* )
9d069a4f 1126 ;;
a05c2c75
L		 1127 hppa*64*-*-hpux*)
1128 noconfigdirs="$noconfigdirs gdb"
1129 ;;
1130 hppa*-*-hpux11*)
1131 noconfigdirs="$noconfigdirs gdb ld"
1132 ;;
4569f85e 1133 hppa*64*-*-linux*)
cdbff0ab 1134 ;;
56f8587a 1135 hppa*-*-linux*)
3e732ba0 1136 ;;
6599da04 1137 hppa*-*-*elf* | \
bae29210 1138 hppa*-*-lites* | \
66350331 1139 hppa*-*-openbsd* | \
bae29210 1140 hppa*64*-*-*)
6599da04 1141 ;;
c03353e2 1142 hppa*-*-pro*)
c03353e2 1143 ;;
6599da04 1144 hppa*-*-*)
2909494b 1145 noconfigdirs="$noconfigdirs ld"
d207ebef 1146 ;;
fb87ad5d 1147 i960-*-*)
0036370f 1148 noconfigdirs="$noconfigdirs gdb"
fb87ad5d 1149 ;;
d207ebef
JM		 1150 ia64*-*-elf*)
1151 # No gdb support yet.
1bcce263 1152 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
d207ebef 1153 ;;
ab50d72b 1154 ia64*-**-hpux*)
5a2931d1 1155 # No ld support yet.
a05c2c75 1156 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
ab50d72b 1157 ;;
52535a64 1158 ia64*-*-*vms*)
091fe9ca
TG		 1159 # No ld support yet.
1160 noconfigdirs="$noconfigdirs libgui itcl ld"
52535a64 1161 ;;
ef4c4300 1162 i[[3456789]]86-w64-mingw*)
ef4c4300
KT		 1163 ;;
1164 i[[3456789]]86-*-mingw*)
b91f0a41 1165 target_configdirs="$target_configdirs target-winsup"
5d571eaa 1166 ;;
d207ebef
JM		 1167 *-*-cygwin*)
1168 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1bcce263 1169 noconfigdirs="$noconfigdirs target-libgloss"
801e2270 1170 # always build newlib if winsup directory is present.
b91f0a41 1171 if test -d "$srcdir/winsup/cygwin"; then
801e2270 1172 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
c8e6cd41 1173 elif test -d "$srcdir/newlib"; then
b91f0a41 1174 echo "Warning: winsup/cygwin is missing so newlib can't be built."
801e2270 1175 fi
5d571eaa 1176 ;;
f2a0e225 1177 i[[3456789]]86-*-pe)
ebb9f8b0 1178 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1179 ;;
f2a0e225 1180 i[[3456789]]86-*-sco3.2v5*)
6599da04
JM		 1181 # The linker does not yet know about weak symbols in COFF,
1182 # and is not configured to handle mixed ELF and COFF.
0036370f 1183 noconfigdirs="$noconfigdirs ld target-libgloss"
6599da04 1184 ;;
f2a0e225 1185 i[[3456789]]86-*-sco*)
0036370f 1186 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1187 ;;
fbdd5d87 1188 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
7c01b2b5 1189 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1190 ;;
f2a0e225 1191 i[[3456789]]86-*-sysv4*)
0036370f 1192 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1193 ;;
f2a0e225 1194 i[[3456789]]86-*-beos*)
6a789d5e 1195 noconfigdirs="$noconfigdirs gdb"
3aa83176 1196 ;;
d1f8db0c 1197 i[[3456789]]86-*-rdos*)
6a789d5e 1198 noconfigdirs="$noconfigdirs gdb"
c03353e2 1199 ;;
d344dce9 1200 mmix-*-*)
2909494b 1201 noconfigdirs="$noconfigdirs gdb"
d344dce9 1202 ;;
ab34901f 1203 mt-*-*)
79dd769c
AH		 1204 noconfigdirs="$noconfigdirs sim"
1205 ;;
58b40a67
FT		 1206 nfp-*-*)
1207 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1208 noconfigdirs="$noconfigdirs $target_libraries"
1209 ;;
e6cbe965
SC		 1210 pdp11-*-*)
1211 noconfigdirs="$noconfigdirs gdb gprof"
1212 ;;
6599da04
JM		 1213 powerpc-*-aix*)
1214 # copied from rs6000-*-* entry
6a789d5e 1215 noconfigdirs="$noconfigdirs gprof"
6599da04 1216 ;;
4569f85e 1217 powerpc*-*-winnt* | powerpc*-*-pe*)
6599da04 1218 target_configdirs="$target_configdirs target-winsup"
0036370f 1219 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
6599da04
JM		 1220 # always build newlib.
1221 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1222 ;;
1223 # This is temporary until we can link against shared libraries
1224 powerpcle-*-solaris*)
0036370f 1225 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
6599da04 1226 ;;
0da3b5a7 1227 powerpc-*-beos*)
6a789d5e 1228 noconfigdirs="$noconfigdirs gdb"
d207ebef 1229 ;;
6599da04 1230 rs6000-*-lynxos*)
6a789d5e 1231 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1232 ;;
1233 rs6000-*-aix*)
6a789d5e 1234 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1235 ;;
1236 rs6000-*-*)
2909494b 1237 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1238 ;;
1239 m68k-apollo-*)
0036370f 1240 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
6599da04 1241 ;;
ca9fe997 1242 microblaze*)
2909494b 1243 noconfigdirs="$noconfigdirs gprof"
ca9fe997 1244 ;;
74ae587e 1245 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
d9dced13
RS		 1246 if test x$with_newlib = xyes; then
1247 noconfigdirs="$noconfigdirs gprof"
1248 fi
d9dced13 1249 ;;
6599da04 1250 mips*-*-irix5*)
0036370f 1251 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04
JM		 1252 ;;
1253 mips*-*-irix6*)
2909494b 1254 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1255 ;;
6599da04 1256 mips*-*-bsd*)
bc98bcc4 1257 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
6599da04 1258 ;;
9bec4bf0 1259 mips*-*-linux*)
9bec4bf0 1260 ;;
bc98bcc4
JBG		 1261 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1262 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1263 noconfigdirs="$noconfigdirs ld gas gprof"
1264 ;;
6599da04 1265 mips*-*-*)
2909494b 1266 noconfigdirs="$noconfigdirs gprof"
6599da04 1267 ;;
738f2522 1268 nvptx*-*-*)
738f2522
BS		 1269 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1270 ;;
bc6d9014 1271 sh-*-*)
ea2002ba
CB		 1272 case "${target}" in
1273 sh*-*-elf)
2909494b 1274 ;;
ea2002ba 1275 *)
2909494b 1276 noconfigdirs="$noconfigdirs target-libgloss" ;;
ea2002ba 1277 esac
6599da04
JM		 1278 ;;
1279 sparc-*-sunos4*)
6a789d5e 1280 if test x${is_cross_compiler} = xno ; then
6599da04
JM		 1281 use_gnu_ld=no
1282 fi
1283 ;;
b42f0d7e 1284 tic6x-*-*)
0d557ff8 1285 noconfigdirs="$noconfigdirs sim"
b42f0d7e 1286 ;;
341c653c 1287 tilepro*-*-* | tilegx*-*-*)
db1d217c
WL		 1288 noconfigdirs="$noconfigdirs sim"
1289 ;;
6599da04 1290 v810-*-*)
0036370f 1291 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
6599da04
JM		 1292 ;;
1293 vax-*-*)
2909494b 1294 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1295 ;;
1fc1d82e
MR		 1296 wasm32-*-*)
1297 noconfigdirs="$noconfigdirs ld"
1298 ;;
6599da04
JM		 1299esac
1300
6599da04
JM		 1301# If we aren't building newlib, then don't build libgloss, since libgloss
1302# depends upon some newlib header files.
1303case "${noconfigdirs}" in
1304 *target-libgloss*) ;;
1305 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
55380b08 1306esac
6599da04 1307
55380b08 1308# Work in distributions that contain no compiler tools, like Autoconf.
671aa708 1309host_makefile_frag=/dev/null
55380b08
NN		 1310if test -d ${srcdir}/config ; then
1311case "${host}" in
f2a0e225 1312 i[[3456789]]86-*-msdosdjgpp*)
55380b08
NN		 1313 host_makefile_frag="config/mh-djgpp"
1314 ;;
1315 *-cygwin*)
2a79c47f 1316 ACX_CHECK_CYGWIN_CAT_WORKS
55380b08
NN		 1317 host_makefile_frag="config/mh-cygwin"
1318 ;;
c53a18d3 1319 *-mingw*)
1f5a6b84 1320 host_makefile_frag="config/mh-mingw"
738a52d3 1321 ;;
cabb9d59 1322 alpha*-linux*)
13be44ed
UB		 1323 host_makefile_frag="config/mh-alpha-linux"
1324 ;;
00afcaa0 1325 hppa*-hp-hpux10*)
00afcaa0 1326 host_makefile_frag="config/mh-pa-hpux10"
55380b08 1327 ;;
111eeb6e 1328 hppa*-hp-hpux*)
00afcaa0
PB		 1329 host_makefile_frag="config/mh-pa"
1330 ;;
1331 hppa*-*)
1332 host_makefile_frag="config/mh-pa"
1333 ;;
d8ed14ce
IS		 1334 *-*-darwin*)
1335 host_makefile_frag="config/mh-darwin"
be8fff81 1336 ;;
d19bca38
PB		 1337 powerpc-*-aix*)
1338 host_makefile_frag="config/mh-ppc-aix"
1339 ;;
1340 rs6000-*-aix*)
1341 host_makefile_frag="config/mh-ppc-aix"
1342 ;;
55380b08
NN		 1343esac
1344fi
1345
e4c9c075 1346if test "${build}" != "${host}" ; then
0999159b
PB		 1347 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1348 AS_FOR_BUILD=${AS_FOR_BUILD-as}
e4c9c075 1349 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
0999159b 1350 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
0999159b 1351 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
632e2a07 1352 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
b4c522fa 1353 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
0999159b
PB		 1354 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1355 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1356 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1357 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1358 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1359 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
e4c9c075 1360else
0999159b
PB		 1361 AR_FOR_BUILD="\$(AR)"
1362 AS_FOR_BUILD="\$(AS)"
e4c9c075 1363 CC_FOR_BUILD="\$(CC)"
0999159b 1364 CXX_FOR_BUILD="\$(CXX)"
0999159b 1365 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
632e2a07 1366 GOC_FOR_BUILD="\$(GOC)"
b4c522fa 1367 GDC_FOR_BUILD="\$(GDC)"
0999159b
PB		 1368 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1369 LD_FOR_BUILD="\$(LD)"
1370 NM_FOR_BUILD="\$(NM)"
1371 RANLIB_FOR_BUILD="\$(RANLIB)"
1372 WINDRES_FOR_BUILD="\$(WINDRES)"
1373 WINDMC_FOR_BUILD="\$(WINDMC)"
c3a86da9 1374fi
e4c9c075 1375
c3a86da9
DJ		 1376AC_PROG_CC
1377AC_PROG_CXX
1378
1379# We must set the default linker to the linker used by gcc for the correct
1380# operation of libtool. If LD is not defined and we are using gcc, try to
1381# set the LD default to the ld used by gcc.
1382if test -z "$LD"; then
1383 if test "$GCC" = yes; then
1384 case $build in
1385 *-*-mingw*)
1386 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1387 *)
1388 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1389 esac
1390 case $gcc_prog_ld in
1391 # Accept absolute paths.
1392 [[\\/]* | [A-Za-z]:[\\/]*)]
1393 LD="$gcc_prog_ld" ;;
1394 esac
1395 fi
e4c9c075
PB		 1396fi
1397
0b21f5d3
EB		 1398# Check whether -static-libstdc++ -static-libgcc is supported.
1399have_static_libs=no
1400if test "$GCC" = yes; then
1401 saved_LDFLAGS="$LDFLAGS"
1402
1403 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1404 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1405 AC_LANG_PUSH(C++)
22e05272 1406 AC_LINK_IFELSE([AC_LANG_SOURCE([
0d6414b2
EB		 1407#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1408#error -static-libstdc++ not implemented
1409#endif
22e05272 1410int main() {}])],
0b21f5d3
EB		 1411 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1412 [AC_MSG_RESULT([no])])
1413 AC_LANG_POP(C++)
1414
1415 LDFLAGS="$saved_LDFLAGS"
1416fi
1417
e4c9c075 1418ACX_PROG_GNAT
a76494aa 1419ACX_PROG_CMP_IGNORE_INITIAL
e4c9c075 1420
ff3ac0f4
ILT		 1421AC_ARG_ENABLE([bootstrap],
1422[AS_HELP_STRING([--enable-bootstrap],
1423 [enable bootstrapping @<:@yes if native build@:>@])],,
1424enable_bootstrap=default)
1425
1426# Issue errors and warnings for invalid/strange bootstrap combinations.
bf03b9ff
ILT		 1427if test -r $srcdir/gcc/configure; then
1428 have_compiler=yes
1429else
1430 have_compiler=no
1431fi
ff3ac0f4
ILT		 1432
1433case "$have_compiler:$host:$target:$enable_bootstrap" in
1434 *:*:*:no) ;;
1435
1436 # Default behavior. Enable bootstrap if we have a compiler
1437 # and we are in a native configuration.
1438 yes:$build:$build:default)
1439 enable_bootstrap=yes ;;
1440
1441 *:*:*:default)
1442 enable_bootstrap=no ;;
1443
1444 # We have a compiler and we are in a native configuration, bootstrap is ok
1445 yes:$build:$build:yes)
1446 ;;
1447
1448 # Other configurations, but we have a compiler. Assume the user knows
1449 # what he's doing.
1450 yes:*:*:yes)
1451 AC_MSG_WARN([trying to bootstrap a cross compiler])
1452 ;;
1453
1454 # No compiler: if they passed --enable-bootstrap explicitly, fail
1455 no:*:*:yes)
1456 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1457
1458 # Fail if wrong command line
1459 *)
1460 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1461 ;;
1462esac
1463
5329b59a 1464# When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
ffac9597
JM		 1465# C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1466# require C++11 (or higher).
46070488 1467if test "$enable_bootstrap:$GXX" = "yes:yes"; then
5329b59a 1468 CXX="$CXX -std=c++11"
ffac9597
JM		 1469elif test "$have_compiler" = yes; then
1470 AX_CXX_COMPILE_STDCXX(11)
7ffcf5d6
TB		 1471
1472 if test "${build}" != "${host}"; then
1473 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1474 fi
46070488
JM		 1475fi
1476
592c90ff
KG		 1477# Used for setting $lt_cv_objdir
1478_LT_CHECK_OBJDIR
1479
acd26225 1480# Check for GMP, MPFR and MPC
3a5729ea 1481gmplibs="-lmpc -lmpfr -lgmp"
6de9cd9a 1482gmpinc=
e69bf64b 1483have_gmp=no
acd26225
KG		 1484
1485# Specify a location for mpc
1486# check for this first so it ends up on the link line before mpfr.
33e39b66
AS		 1487AC_ARG_WITH(mpc,
1488[AS_HELP_STRING([--with-mpc=PATH],
1489 [specify prefix directory for installed MPC package.
1490 Equivalent to --with-mpc-include=PATH/include
1491 plus --with-mpc-lib=PATH/lib])])
1492AC_ARG_WITH(mpc-include,
1493[AS_HELP_STRING([--with-mpc-include=PATH],
1494 [specify directory for installed MPC include files])])
1495AC_ARG_WITH(mpc-lib,
1496[AS_HELP_STRING([--with-mpc-lib=PATH],
1497 [specify directory for the installed MPC library])])
acd26225
KG		 1498
1499if test "x$with_mpc" != x; then
3a5729ea
KG		 1500 gmplibs="-L$with_mpc/lib $gmplibs"
1501 gmpinc="-I$with_mpc/include $gmpinc"
acd26225
KG		 1502fi
1503if test "x$with_mpc_include" != x; then
3a5729ea 1504 gmpinc="-I$with_mpc_include $gmpinc"
acd26225
KG		 1505fi
1506if test "x$with_mpc_lib" != x; then
3a5729ea 1507 gmplibs="-L$with_mpc_lib $gmplibs"
acd26225
KG		 1508fi
1509if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
592c90ff 1510 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
3a5729ea 1511 gmpinc='-I$$s/mpc/src '"$gmpinc"
acd26225
KG		 1512 # Do not test the mpc version. Assume that it is sufficient, since
1513 # it is in the source tree, and the library has not been built yet
1514 # but it would be included on the link line in the version check below
1515 # hence making the test fail.
3a5729ea 1516 have_gmp=yes
acd26225 1517fi
e69bf64b 1518
bebf829d
PB		 1519# Specify a location for mpfr
1520# check for this first so it ends up on the link line before gmp.
33e39b66
AS		 1521AC_ARG_WITH(mpfr-dir,
1522[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1523[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1524Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1525
1526AC_ARG_WITH(mpfr,
1527[AS_HELP_STRING([--with-mpfr=PATH],
1528 [specify prefix directory for installed MPFR package.
1529 Equivalent to --with-mpfr-include=PATH/include
1530 plus --with-mpfr-lib=PATH/lib])])
1531AC_ARG_WITH(mpfr-include,
1532[AS_HELP_STRING([--with-mpfr-include=PATH],
1533 [specify directory for installed MPFR include files])])
1534AC_ARG_WITH(mpfr-lib,
1535[AS_HELP_STRING([--with-mpfr-lib=PATH],
1536 [specify directory for the installed MPFR library])])
bebf829d
PB		 1537
1538if test "x$with_mpfr" != x; then
1539 gmplibs="-L$with_mpfr/lib $gmplibs"
3a5729ea 1540 gmpinc="-I$with_mpfr/include $gmpinc"
bebf829d 1541fi
8a877c9c 1542if test "x$with_mpfr_include" != x; then
3a5729ea 1543 gmpinc="-I$with_mpfr_include $gmpinc"
8a877c9c
KG		 1544fi
1545if test "x$with_mpfr_lib" != x; then
1546 gmplibs="-L$with_mpfr_lib $gmplibs"
1547fi
e69bf64b 1548if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
8f3675f8
MR		 1549 # MPFR v3.1.0 moved the sources into a src sub-directory.
1550 if ! test -d ${srcdir}/mpfr/src; then
1551 AC_MSG_ERROR([dnl
1552Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1553 fi
00f35794
BE		 1554 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1555 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1556 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
e69bf64b
PB		 1557 # Do not test the mpfr version. Assume that it is sufficient, since
1558 # it is in the source tree, and the library has not been built yet
1559 # but it would be included on the link line in the version check below
1560 # hence making the test fail.
1561 have_gmp=yes
1562fi
bebf829d 1563
6de9cd9a 1564# Specify a location for gmp
33e39b66
AS		 1565AC_ARG_WITH(gmp-dir,
1566[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1567[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1568Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1569
1570AC_ARG_WITH(gmp,
1571[AS_HELP_STRING([--with-gmp=PATH],
1572 [specify prefix directory for the installed GMP package.
1573 Equivalent to --with-gmp-include=PATH/include
1574 plus --with-gmp-lib=PATH/lib])])
1575AC_ARG_WITH(gmp-include,
1576[AS_HELP_STRING([--with-gmp-include=PATH],
1577 [specify directory for installed GMP include files])])
1578AC_ARG_WITH(gmp-lib,
1579[AS_HELP_STRING([--with-gmp-lib=PATH],
1580 [specify directory for the installed GMP library])])
6de9cd9a 1581
6de9cd9a 1582
bebf829d
PB		 1583if test "x$with_gmp" != x; then
1584 gmplibs="-L$with_gmp/lib $gmplibs"
1585 gmpinc="-I$with_gmp/include $gmpinc"
6de9cd9a 1586fi
8a877c9c
KG		 1587if test "x$with_gmp_include" != x; then
1588 gmpinc="-I$with_gmp_include $gmpinc"
1589fi
1590if test "x$with_gmp_lib" != x; then
1591 gmplibs="-L$with_gmp_lib $gmplibs"
1592fi
e69bf64b 1593if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
592c90ff 1594 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
e69bf64b 1595 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
9183bdcf 1596 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
592c90ff 1597 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
0ff2d841 1598 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
e69bf64b
PB		 1599 # Do not test the gmp version. Assume that it is sufficient, since
1600 # it is in the source tree, and the library has not been built yet
1601 # but it would be included on the link line in the version check below
1602 # hence making the test fail.
1603 have_gmp=yes
1604fi
6de9cd9a 1605
d943d7c4 1606if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
e69bf64b
PB		 1607 have_gmp=yes
1608 saved_CFLAGS="$CFLAGS"
1609 CFLAGS="$CFLAGS $gmpinc"
362c6d2f
KG		 1610 # Check for the recommended and required versions of GMP.
1611 AC_MSG_CHECKING([for the correct version of gmp.h])
e69bf64b 1612 AC_TRY_COMPILE([#include "gmp.h"],[
362c6d2f
KG		 1613 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1614 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
385c0681 1615 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
e48d66a9 1616 choke me
e69bf64b 1617 #endif
e8fd69bb 1618 ], [AC_TRY_COMPILE([#include <gmp.h>],[
362c6d2f
KG		 1619 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1620 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1621 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1622 choke me
1623 #endif
e8fd69bb 1624 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1625 [AC_MSG_RESULT([no]); have_gmp=no])
e69bf64b 1626
acd26225 1627 # If we have GMP, check the MPFR version.
e69bf64b 1628 if test x"$have_gmp" = xyes; then
362c6d2f
KG		 1629 # Check for the recommended and required versions of MPFR.
1630 AC_MSG_CHECKING([for the correct version of mpfr.h])
acd26225 1631 AC_TRY_COMPILE([#include <gmp.h>
e69bf64b 1632 #include <mpfr.h>],[
8be34204 1633 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
e69bf64b
PB		 1634 choke me
1635 #endif
e8fd69bb 1636 ], [AC_TRY_COMPILE([#include <gmp.h>
acd26225 1637 #include <mpfr.h>],[
8be34204 1638 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
acd26225
KG		 1639 choke me
1640 #endif
e8fd69bb 1641 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
acd26225
KG		 1642 [AC_MSG_RESULT([no]); have_gmp=no])
1643 fi
1644
1645 # Check for the MPC header version.
3a5729ea 1646 if test x"$have_gmp" = xyes ; then
362c6d2f 1647 # Check for the recommended and required versions of MPC.
acd26225
KG		 1648 AC_MSG_CHECKING([for the correct version of mpc.h])
1649 AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f 1650 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
acd26225
KG		 1651 choke me
1652 #endif
e8fd69bb 1653 ], [AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f
KG		 1654 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1655 choke me
1656 #endif
e8fd69bb 1657 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1658 [AC_MSG_RESULT([no]); have_gmp=no])
acd26225
KG		 1659 fi
1660
1661 # Now check the MPFR library.
1662 if test x"$have_gmp" = xyes; then
1663 saved_LIBS="$LIBS"
1664 LIBS="$LIBS $gmplibs"
3a5729ea
KG		 1665 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1666 AC_TRY_LINK([#include <mpc.h>],[
54e433bc
MK		 1667 mpfr_t n;
1668 mpfr_t x;
3a5729ea 1669 mpc_t c;
e69bf64b 1670 int t;
54e433bc
MK		 1671 mpfr_init (n);
1672 mpfr_init (x);
90ca6847
TB		 1673 mpfr_atan2 (n, n, x, MPFR_RNDN);
1674 mpfr_erfc (n, x, MPFR_RNDN);
1675 mpfr_subnormalize (x, t, MPFR_RNDN);
3a5729ea
KG		 1676 mpfr_clear(n);
1677 mpfr_clear(x);
1678 mpc_init2 (c, 53);
1679 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1680 mpc_cosh (c, c, MPC_RNDNN);
1681 mpc_pow (c, c, c, MPC_RNDNN);
1682 mpc_acosh (c, c, MPC_RNDNN);
1683 mpc_clear (c);
acd26225
KG		 1684 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1685 LIBS="$saved_LIBS"
e69bf64b 1686 fi
acd26225 1687
e69bf64b 1688 CFLAGS="$saved_CFLAGS"
6de9cd9a 1689
362c6d2f
KG		 1690# The library versions listed in the error message below should match
1691# the HARD-minimums enforced above.
e69bf64b 1692 if test x$have_gmp != xyes; then
8be34204 1693 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
3a5729ea
KG		 1694Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1695their locations. Source code for these libraries can be found at
1696their respective hosting sites as well as at
aeebd94c 1697https://gcc.gnu.org/pub/gcc/infrastructure/. See also
3a5729ea
KG		 1698http://gcc.gnu.org/install/prerequisites.html for additional info. If
1699you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1700make sure that you have installed both the libraries and the header
1701files. They may be located in separate packages.])
e69bf64b 1702 fi
70ec446f
KG		 1703fi
1704
acd26225 1705# Flags needed for both GMP, MPFR and/or MPC.
6de9cd9a
DN		 1706AC_SUBST(gmplibs)
1707AC_SUBST(gmpinc)
9e3eba15 1708AC_SUBST(extra_mpfr_configure_flags)
acd26225
KG		 1709AC_SUBST(extra_mpc_gmp_configure_flags)
1710AC_SUBST(extra_mpc_mpfr_configure_flags)
0ff2d841 1711AC_SUBST(extra_isl_gmp_configure_flags)
6de9cd9a 1712
00020c16
ILT		 1713# Libraries to use for stage1 or when not bootstrapping.
1714AC_ARG_WITH(stage1-libs,
33e39b66 1715[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
00020c16
ILT		 1716[if test "$withval" = "no" -o "$withval" = "yes"; then
1717 stage1_libs=
1718 else
1719 stage1_libs=$withval
1720 fi],
5dc85f7e 1721[stage1_libs=])
00020c16
ILT		 1722AC_SUBST(stage1_libs)
1723
aac9103b
TT		 1724# Whether or not to use -static-libstdc++ and -static-libgcc. The
1725# default is yes if gcc is being built; no otherwise. The reason for
1726# this default is that gdb is sometimes linked against GNU Source
1727# Highlight, which is a shared library that uses C++ exceptions. In
1728# this case, -static-libstdc++ will cause crashes.
1729AC_ARG_WITH(static-standard-libraries,
1730[AS_HELP_STRING([--with-static-standard-libraries],
1731 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1732[], [with_static_standard_libraries=auto])
1733if test "$with_static_standard_libraries" = auto; then
1734 with_static_standard_libraries=$have_compiler
1735fi
1736
0b21f5d3
EB		 1737# Linker flags to use for stage1 or when not bootstrapping.
1738AC_ARG_WITH(stage1-ldflags,
1739[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1740[if test "$withval" = "no" -o "$withval" = "yes"; then
1741 stage1_ldflags=
1742 else
1743 stage1_ldflags=$withval
1744 fi],
1745[stage1_ldflags=
1746 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1747 # if supported. But if the user explicitly specified the libraries to use,
1748 # trust that they are doing what they want.
aac9103b
TT		 1749 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1750 -a "$have_static_libs" = yes; then
0b21f5d3
EB		 1751 stage1_ldflags="-static-libstdc++ -static-libgcc"
1752 fi])
1753AC_SUBST(stage1_ldflags)
1754
5dc85f7e 1755# Libraries to use for stage2 and later builds.
00020c16 1756AC_ARG_WITH(boot-libs,
33e39b66 1757[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
00020c16
ILT		 1758[if test "$withval" = "no" -o "$withval" = "yes"; then
1759 poststage1_libs=
1760 else
e90e6bd7 1761 poststage1_libs=$withval
00020c16 1762 fi],
5dc85f7e 1763[poststage1_libs=])
00020c16
ILT		 1764AC_SUBST(poststage1_libs)
1765
ed2eaa9f
ILT		 1766# Linker flags to use for stage2 and later builds.
1767AC_ARG_WITH(boot-ldflags,
33e39b66
AS		 1768[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1769 [linker flags for stage2 and later])],
ed2eaa9f
ILT		 1770[if test "$withval" = "no" -o "$withval" = "yes"; then
1771 poststage1_ldflags=
1772 else
1773 poststage1_ldflags=$withval
1774 fi],
1775[poststage1_ldflags=
bec93d73
ILT		 1776 # In stages 2 and 3, default to linking libstdc++ and libgcc
1777 # statically. But if the user explicitly specified the libraries to
1778 # use, trust that they are doing what they want.
1779 if test "$poststage1_libs" = ""; then
ed2eaa9f
ILT		 1780 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1781 fi])
1782AC_SUBST(poststage1_ldflags)
1783
e357a5e0 1784# GCC GRAPHITE dependency isl.
4a9bb2aa 1785# Basic setup is inlined here, actual checks are in config/isl.m4
625afa23 1786
625afa23
RG		 1787AC_ARG_WITH(isl,
1788 [AS_HELP_STRING(
1789 [--with-isl=PATH],
e357a5e0 1790 [Specify prefix directory for the installed isl package.
625afa23
RG		 1791 Equivalent to --with-isl-include=PATH/include
1792 plus --with-isl-lib=PATH/lib])])
1793
eae1a5d4 1794# Treat --without-isl as a request to disable
625afa23 1795# GRAPHITE support and skip all following checks.
eae1a5d4 1796if test "x$with_isl" != "xno"; then
e357a5e0 1797 # Check for isl
625afa23
RG		 1798 dnl Provide configure switches and initialize islinc & isllibs
1799 dnl with user input.
1800 ISL_INIT_FLAGS
e357a5e0 1801 dnl The versions of isl that work for Graphite
e0c0c325 1802 ISL_CHECK_VERSION()
e357a5e0 1803 dnl Only execute fail-action, if isl has been requested.
33ad93b9 1804 ISL_IF_FAILED([
e357a5e0 1805 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
f8bf9252 1806fi
f8bf9252 1807
e357a5e0 1808# If the isl check failed, disable builds of in-tree variant of isl
625afa23 1809if test "x$with_isl" = xno ||
625afa23 1810 test "x$gcc_cv_isl" = xno; then
4a9bb2aa 1811 noconfigdirs="$noconfigdirs isl"
625afa23 1812 islinc=
eae1a5d4
RG		 1813fi
1814
1815AC_SUBST(isllibs)
625afa23 1816AC_SUBST(islinc)
625afa23 1817
d7f09764
DN		 1818# Check for LTO support.
1819AC_ARG_ENABLE(lto,
33e39b66 1820[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
d7f09764
DN		 1821enable_lto=$enableval,
1822enable_lto=yes; default_enable_lto=yes)
1823
48215350
DK		 1824ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1825 build_lto_plugin=yes
1826],[if test x"$default_enable_lto" = x"yes" ; then
bb79486c 1827 case $target in
deeba76a 1828 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
48215350 1829 # On other non-ELF platforms, LTO has yet to be validated.
bb79486c
JH		 1830 *) enable_lto=no ;;
1831 esac
3bec79c5 1832 else
db50fe7d
IS		 1833 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1834 # It would also be nice to check the binutils support, but we don't
3bec79c5
DK		 1835 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1836 # warn during gcc/ subconfigure; unless you're bootstrapping with
1837 # -flto it won't be needed until after installation anyway.
1838 case $target in
9e530bcd 1839 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
3bec79c5
DK		 1840 *) if test x"$enable_lto" = x"yes"; then
1841 AC_MSG_ERROR([LTO support is not enabled for this target.])
1842 fi
1843 ;;
1844 esac
1845 fi
1cd0b716 1846 # Among non-ELF, only Windows platforms support the lto-plugin so far.
48215350 1847 # Build it unless LTO was explicitly disabled.
1cd0b716 1848 case $target in
48215350 1849 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1cd0b716
DK		 1850 *) ;;
1851 esac
48215350 1852])
d7f09764 1853
45b3824d
TS		 1854AC_ARG_ENABLE(linker-plugin-configure-flags,
1855 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1856 [additional flags for configuring linker plugins @<:@none@:>@])],
1857 extra_linker_plugin_configure_flags=$enableval,
1858 extra_linker_plugin_configure_flags=)
1859AC_SUBST(extra_linker_plugin_configure_flags)
1860AC_ARG_ENABLE(linker-plugin-flags,
1861 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1862 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1863 extra_linker_plugin_flags=$enableval,
1864 extra_linker_plugin_flags=)
1865AC_SUBST(extra_linker_plugin_flags)
1866
cdfee50a
NS		 1867# Enable --enable-host-shared.
1868# Checked early to determine whether jit is an 'all' language
1869AC_ARG_ENABLE(host-shared,
1870[AS_HELP_STRING([--enable-host-shared],
1871 [build host code as shared libraries])],
1872[host_shared=$enableval], [host_shared=no])
1873AC_SUBST(host_shared)
f8bf9252 1874
0823efed 1875# By default, C and C++ are the only stage 1 languages.
e1888513 1876stage1_languages=,c,
2805b53a 1877
00020c16 1878# Target libraries that we bootstrap.
ad1e5170 1879bootstrap_target_libs=,target-libgcc,
00020c16 1880
e4c9c075
PB		 1881# Figure out what language subdirectories are present.
1882# Look if the user specified --enable-languages="..."; if not, use
1883# the environment variable $LANGUAGES if defined. $LANGUAGES might
1884# go away some day.
1885# NB: embedded tabs in this IF block -- do not untabify
1886if test -d ${srcdir}/gcc; then
1887 if test x"${enable_languages+set}" != xset; then
1888 if test x"${LANGUAGES+set}" = xset; then
1889 enable_languages="${LANGUAGES}"
6b1786aa 1890 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
e4c9c075 1891 else
cdfee50a 1892 enable_languages=default
e4c9c075
PB		 1893 fi
1894 else
1895 if test x"${enable_languages}" = x ||
1896 test x"${enable_languages}" = xyes;
1897 then
6b1786aa 1898 echo configure.ac: --enable-languages needs at least one language argument 1>&2
e4c9c075
PB		 1899 exit 1
1900 fi
1901 fi
1902 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1903
7f26dfa3
FXC		 1904 # 'f95' is the old name for the 'fortran' language. We issue a warning
1905 # and make the substitution.
1906 case ,${enable_languages}, in
1907 *,f95,*)
6b1786aa 1908 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
7f26dfa3
FXC		 1909 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1910 ;;
1911 esac
1912
0823efed
DN		 1913 # If bootstrapping, C++ must be enabled.
1914 case ",$enable_languages,:$enable_bootstrap" in
1915 *,c++,*:*) ;;
1916 *:yes)
ff3ac0f4
ILT		 1917 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1918 enable_languages="${enable_languages},c++"
1919 else
0823efed 1920 AC_MSG_ERROR([bootstrapping requires c++ sources])
ff3ac0f4
ILT		 1921 fi
1922 ;;
1923 esac
1924
e4c9c075
PB		 1925 # First scan to see if an enabled language requires some other language.
1926 # We assume that a given config-lang.in will list all the language
1927 # front ends it requires, even if some are required indirectly.
1928 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1929 case ${lang_frag} in
1930 ..) ;;
1931 # The odd quoting in the next line works around
1932 # an apparent bug in bash 1.12 on linux.
1933 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1934 *)
69ecd18f
ILT		 1935 # From the config-lang.in, get $language, $lang_requires, and
1936 # $lang_requires_boot_languages.
e4c9c075
PB		 1937 language=
1938 lang_requires=
69ecd18f 1939 lang_requires_boot_languages=
d4360477
NS		 1940 # set srcdir during sourcing lang_frag to the gcc dir.
1941 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1942 # polutes this shell
1943 saved_srcdir=${srcdir}
1944 srcdir=${srcdir}/gcc . ${lang_frag}
1945 srcdir=${saved_srcdir}
69ecd18f 1946 for other in ${lang_requires} ${lang_requires_boot_languages}; do
e4c9c075
PB		 1947 case ,${enable_languages}, in
1948 *,$other,*) ;;
cdfee50a 1949 *,default,*) ;;
e4c9c075
PB		 1950 *,all,*) ;;
1951 *,$language,*)
1952 echo " \`$other' language required by \`$language'; enabling" 1>&2
1953 enable_languages="${enable_languages},${other}"
1954 ;;
1955 esac
1956 done
69ecd18f
ILT		 1957 for other in ${lang_requires_boot_languages} ; do
1958 if test "$other" != "c"; then
1959 case ,${enable_stage1_languages}, in
1960 *,$other,*) ;;
cdfee50a 1961 *,default,*) ;;
69ecd18f
ILT		 1962 *,all,*) ;;
1963 *)
1964 case ,${enable_languages}, in
1965 *,$language,*)
1966 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1967 enable_stage1_languages="$enable_stage1_languages,${other}"
1968 ;;
1969 esac
1970 ;;
1971 esac
1972 fi
1973 done
e4c9c075
PB		 1974 ;;
1975 esac
1976 done
1977
e1888513 1978 new_enable_languages=,c,
d7f09764
DN		 1979
1980 # If LTO is enabled, add the LTO front end.
d7f09764 1981 if test "$enable_lto" = "yes" ; then
e4c5bd48
RW		 1982 case ,${enable_languages}, in
1983 *,lto,*) ;;
1984 *) enable_languages="${enable_languages},lto" ;;
1985 esac
1cd0b716 1986 if test "${build_lto_plugin}" = "yes" ; then
d7f09764 1987 configdirs="$configdirs lto-plugin"
d7f09764
DN		 1988 fi
1989 fi
d7f09764 1990
426c1eb0
TS		 1991 # If we're building an offloading compiler, add the LTO front end.
1992 if test x"$enable_as_accelerator_for" != x ; then
1993 case ,${enable_languages}, in
1994 *,lto,*) ;;
1995 *) enable_languages="${enable_languages},lto" ;;
1996 esac
1997 fi
1998
cdfee50a 1999 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
e1888513 2000 potential_languages=,c,
e4c9c075 2001
4da3b0f8
ILT		 2002 enabled_target_libs=
2003 disabled_target_libs=
2004
e4c9c075
PB		 2005 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2006 case ${lang_frag} in
2007 ..) ;;
2008 # The odd quoting in the next line works around
2009 # an apparent bug in bash 1.12 on linux.
2010 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2011 *)
2012 # From the config-lang.in, get $language, $target_libs,
2805b53a 2013 # $lang_dirs, $boot_language, and $build_by_default
e4c9c075
PB		 2014 language=
2015 target_libs=
2016 lang_dirs=
1546bb64 2017 subdir_requires=
e1888513
PB		 2018 boot_language=no
2019 build_by_default=yes
d4360477
NS		 2020 # set srcdir during sourcing. See above about save & restore
2021 saved_srcdir=${srcdir}
2022 srcdir=${srcdir}/gcc . ${lang_frag}
2023 srcdir=${saved_srcdir}
e1888513
PB		 2024 if test x${language} = x; then
2025 echo "${lang_frag} doesn't set \$language." 1>&2
2026 exit 1
2027 fi
2028
78767fd9 2029 if test "$language" = "c++"; then
0823efed 2030 boot_language=yes
00020c16
ILT		 2031 fi
2032
178f875a 2033 add_this_lang=no
cdfee50a
NS		 2034 # C is always enabled, so no need to add it again
2035 if test "$language" != "c"; then
2036 case ,${enable_languages}, in
2037 *,${language},*)
2038 # Language was explicitly selected; include it
d4a10d0a 2039 add_this_lang=yes
cdfee50a
NS		 2040 ;;
2041 *,all,*)
2042 # All languages are enabled
2043 add_this_lang=all
2044 ;;
2045 *,default,*)
2046 # 'default' was selected, select it if it is a default language
178f875a 2047 add_this_lang=${build_by_default}
cdfee50a
NS		 2048 ;;
2049 esac
2050 fi
6de9cd9a 2051
1546bb64 2052 # Disable languages that need other directories if these aren't available.
95695ad3 2053 for i in $subdir_requires; do
b6348cb3 2054 test -f "$srcdir/gcc/$i/config-lang.in" && continue
cdfee50a
NS		 2055 case ${add_this_lang} in
2056 yes)
1546bb64
PB		 2057 # Specifically requested language; tell them.
2058 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2059 ;;
cdfee50a
NS		 2060 all)
2061 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2062 add_this_lang=unsupported
2063 ;;
1546bb64
PB		 2064 *)
2065 # Silently disable.
e1888513 2066 add_this_lang=unsupported
1546bb64
PB		 2067 ;;
2068 esac
2069 done
2070
e1888513 2071 # Disable Ada if no preexisting GNAT is available.
cdfee50a
NS		 2072 case ${add_this_lang}:${language}:${have_gnat} in
2073 yes:ada:no)
e1888513
PB		 2074 # Specifically requested language; tell them.
2075 AC_MSG_ERROR([GNAT is required to build $language])
2076 ;;
cdfee50a
NS		 2077 all:ada:no)
2078 AC_MSG_WARN([GNAT is required to build $language])
2079 add_this_lang=unsupported
2080 ;;
e1888513
PB		 2081 *:ada:no)
2082 # Silently disable.
2083 add_this_lang=unsupported
2084 ;;
2085 esac
2086
cdfee50a 2087 # Disable jit if -enable-host-shared not specified
c83027f3
NB		 2088 # but not if building for Mingw. All code in Windows
2089 # is position independent code (PIC).
2090 case $target in
2091 *mingw*) ;;
2092 *)
2093 case ${add_this_lang}:${language}:${host_shared} in
2094 yes:jit:no)
2095 # PR jit/64780: explicitly specify --enable-host-shared
cdfee50a
NS		 2096 AC_MSG_ERROR([
2097Enabling language "jit" requires --enable-host-shared.
2098
2099--enable-host-shared typically slows the rest of the compiler down by
2100a few %, so you must explicitly enable it.
2101
2102If you want to build both the jit and the regular compiler, it is often
2103best to do this via two separate configure/builds, in separate
2104directories, to avoid imposing the performance cost of
2105--enable-host-shared on the regular compiler.])
c83027f3
NB		 2106 ;;
2107 all:jit:no)
2108 AC_MSG_WARN([--enable-host-shared required to build $language])
2109 add_this_lang=unsupported
2110 ;;
2111 *:jit:no)
2112 # Silently disable.
2113 add_this_lang=unsupported
2114 ;;
2115 esac
2116 ;;
2117 esac
cdfee50a
NS		 2118
2119 # Disable a language that is unsupported by the target.
2120 case "${add_this_lang}: $unsupported_languages " in
2121 no:*) ;;
2122 unsupported:*) ;;
2123 *:*" $language "*)
2124 AC_MSG_WARN([${language} not supported for this target])
e1888513 2125 add_this_lang=unsupported
4fab7234
HPN		 2126 ;;
2127 esac
2128
6de9cd9a 2129 case $add_this_lang in
e1888513 2130 unsupported)
e4c9c075 2131 # Remove language-dependent dirs.
4da3b0f8
ILT		 2132 disabled_target_libs="$disabled_target_libs $target_libs"
2133 noconfigdirs="$noconfigdirs $lang_dirs"
2805b53a 2134 ;;
e1888513
PB		 2135 no)
2136 # Remove language-dependent dirs; still show language as supported.
4da3b0f8
ILT		 2137 disabled_target_libs="$disabled_target_libs $target_libs"
2138 noconfigdirs="$noconfigdirs $lang_dirs"
e1888513
PB		 2139 potential_languages="${potential_languages}${language},"
2140 ;;
cdfee50a 2141 all|yes)
e1888513
PB		 2142 new_enable_languages="${new_enable_languages}${language},"
2143 potential_languages="${potential_languages}${language},"
2805b53a 2144 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
4da3b0f8 2145 enabled_target_libs="$enabled_target_libs $target_libs"
ab9dcd0c
RW		 2146 case "${boot_language}:,$enable_stage1_languages," in
2147 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
340de83f 2148 # Add to (comma-separated) list of stage 1 languages.
ab9dcd0c
RW		 2149 case ",$stage1_languages," in
2150 *,$language,* | ,yes, | ,all,) ;;
2151 *) stage1_languages="${stage1_languages}${language}," ;;
2152 esac
00020c16
ILT		 2153 # We need to bootstrap any supporting libraries.
2154 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2805b53a
NN		 2155 ;;
2156 esac
2157 ;;
e4c9c075
PB		 2158 esac
2159 ;;
2160 esac
2161 done
2162
4da3b0f8
ILT		 2163 # Add target libraries which are only needed for disabled languages
2164 # to noconfigdirs.
2165 if test -n "$disabled_target_libs"; then
2166 for dir in $disabled_target_libs; do
2167 case " $enabled_target_libs " in
2168 *" ${dir} "*) ;;
2169 *) noconfigdirs="$noconfigdirs $dir" ;;
2170 esac
2171 done
2172 fi
2173
e1888513 2174 AC_ARG_ENABLE(stage1-languages,
33e39b66
AS		 2175 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2176 [choose additional languages to build during
2177 stage1. Mostly useful for compiler development])],
e1888513
PB		 2178 [case ,${enable_stage1_languages}, in
2179 ,no,|,,)
2180 # Set it to something that will have no effect in the loop below
2181 enable_stage1_languages=c ;;
2182 ,yes,)
2183 enable_stage1_languages=`echo $new_enable_languages | \
2184 sed -e "s/^,//" -e "s/,$//" ` ;;
2185 *,all,*)
2186 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2187 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2188 esac
2189
2190 # Add "good" languages from enable_stage1_languages to stage1_languages,
2191 # while "bad" languages go in missing_languages. Leave no duplicates.
2192 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2193 case $potential_languages in
2194 *,$i,*)
2195 case $stage1_languages in
2196 *,$i,*) ;;
2197 *) stage1_languages="$stage1_languages$i," ;;
2198 esac ;;
2199 *)
2200 case $missing_languages in
2201 *,$i,*) ;;
2202 *) missing_languages="$missing_languages$i," ;;
2203 esac ;;
2204 esac
2205 done])
2206
2207 # Remove leading/trailing commas that were added for simplicity
2208 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
79b4b7d2 2209 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
e1888513
PB		 2210 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2211 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2212
e4c9c075
PB		 2213 if test "x$missing_languages" != x; then
2214 AC_MSG_ERROR([
0cf085e4 2215The following requested languages could not be built: ${missing_languages}
e1888513 2216Supported languages are: ${potential_languages}])
e4c9c075 2217 fi
e4c9c075
PB		 2218 if test "x$new_enable_languages" != "x$enable_languages"; then
2219 echo The following languages will be built: ${new_enable_languages}
e1888513 2220 enable_languages="$new_enable_languages"
e4c9c075 2221 fi
e1888513
PB		 2222
2223 AC_SUBST(stage1_languages)
b2eaac4a 2224 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
e4c9c075
PB		 2225fi
2226
27079765
AH		 2227# Handle --disable-<component> generically.
2228for dir in $configdirs $build_configdirs $target_configdirs ; do
2229 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
ac9e6043
RW		 2230 varname=`echo $dirname | sed -e s/+/_/g`
2231 if eval test x\${enable_${varname}} "=" xno ; then
27079765
AH		 2232 noconfigdirs="$noconfigdirs $dir"
2233 fi
2234done
2235
43c40f3e
RO		 2236# Check for Boehm's garbage collector
2237AC_ARG_ENABLE(objc-gc,
2238[AS_HELP_STRING([--enable-objc-gc],
2239 [enable use of Boehm's garbage collector with the
114bf3f1
MK		 2240 GNU Objective-C runtime])])
2241AC_ARG_WITH([target-bdw-gc],
2242[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2243 [specify prefix directory for installed bdw-gc package.
2244 Equivalent to --with-target-bdw-gc-include=PATH/include
2245 plus --with-target-bdw-gc-lib=PATH/lib])])
2246AC_ARG_WITH([target-bdw-gc-include],
2247[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2248 [specify directories for installed bdw-gc include files])])
2249AC_ARG_WITH([target-bdw-gc-lib],
2250[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2251 [specify directories for installed bdw-gc library])])
2252
2253case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2254 AC_MSG_CHECKING([for bdw garbage collector])
2255 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
825fba52
MK		 2256 dnl no bdw-gw options, assume default locations
2257 AC_MSG_RESULT([using bdw-gc in default locations])
114bf3f1
MK		 2258 else
2259 dnl bdw-gw options, first error checking, complete checking in libobjc
2260 if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
2261 AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
2262 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2263 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2264 else
2265 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2266 fi
2267 fi
43c40f3e
RO		 2268esac
2269
5e9d6aa4 2270# Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
99776ebd 2271case ,${enable_languages}, in
1007a55c 2272 *,c++,*)
5e9d6aa4 2273 # Disable libitm, libsanitizer if we're not building libstdc++
1007a55c
JW		 2274 case "${noconfigdirs}" in
2275 *target-libstdc++-v3*)
5e9d6aa4 2276 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
1007a55c
JW		 2277 ;;
2278 *) ;;
2279 esac
2280 ;;
99776ebd 2281 *)
5e9d6aa4 2282 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
99776ebd
RH		 2283 ;;
2284esac
7cd0cf9c 2285
9d069a4f
PB		 2286# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2287# $build_configdirs and $target_configdirs.
e4c9c075
PB		 2288# If we have the source for $noconfigdirs entries, add them to $notsupp.
2289
2290notsupp=""
2291for dir in . $skipdirs $noconfigdirs ; do
9d069a4f 2292 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
e4c9c075
PB		 2293 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2294 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2295 if test -r $srcdir/$dirname/configure ; then
2296 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2297 true
2298 else
2299 notsupp="$notsupp $dir"
2300 fi
2301 fi
2302 fi
9d069a4f
PB		 2303 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2304 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2305 if test -r $srcdir/$dirname/configure ; then
2306 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2307 true
2308 else
2309 notsupp="$notsupp $dir"
2310 fi
2311 fi
2312 fi
e4c9c075
PB		 2313 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2314 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2315 if test -r $srcdir/$dirname/configure ; then
2316 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2317 true
2318 else
2319 notsupp="$notsupp $dir"
2320 fi
2321 fi
2322 fi
2323done
2324
e4c9c075
PB		 2325# Quietly strip out all directories which aren't configurable in this tree.
2326# This relies on all configurable subdirectories being autoconfiscated, which
2327# is now the case.
23f6b2f9
PB		 2328build_configdirs_all="$build_configdirs"
2329build_configdirs=
2330for i in ${build_configdirs_all} ; do
2331 j=`echo $i | sed -e s/build-//g`
2332 if test -f ${srcdir}/$j/configure ; then
2333 build_configdirs="${build_configdirs} $i"
2334 fi
2335done
2336
e4c9c075
PB		 2337configdirs_all="$configdirs"
2338configdirs=
2339for i in ${configdirs_all} ; do
2340 if test -f ${srcdir}/$i/configure ; then
2341 configdirs="${configdirs} $i"
2342 fi
2343done
23f6b2f9 2344
e4c9c075
PB		 2345target_configdirs_all="$target_configdirs"
2346target_configdirs=
2347for i in ${target_configdirs_all} ; do
2348 j=`echo $i | sed -e s/target-//g`
2349 if test -f ${srcdir}/$j/configure ; then
2350 target_configdirs="${target_configdirs} $i"
2351 fi
2352done
2353
45b3824d
TS		 2354# libiberty-linker-plugin is special: it doesn't have its own source directory,
2355# so we have to add it after the preceding checks.
2356if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2357then
2358 case " $configdirs " in
2359 *" libiberty "*)
2360 # If we can build libiberty, we can also build libiberty-linker-plugin.
2361 configdirs="$configdirs libiberty-linker-plugin"
2362 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2363 --with-libiberty=../libiberty-linker-plugin";;
2364 *)
2365 AC_MSG_ERROR([libiberty missing]);;
2366 esac
2367fi
2368
fca38047
TS		 2369# Sometimes we have special requirements for the host libiberty.
2370extra_host_libiberty_configure_flags=
1c01ebf6 2371extra_host_zlib_configure_flags=
fca38047
TS		 2372case " $configdirs " in
2373 *" lto-plugin "* | *" libcc1 "*)
2374 # When these are to be built as shared libraries, the same applies to
2375 # libiberty.
2376 extra_host_libiberty_configure_flags=--enable-shared
2377 ;;
1c01ebf6
L		 2378 *" bfd "*)
2379 # When bfd is to be built as a shared library, the same applies to
2380 # zlib.
2381 if test "$enable_shared" = "yes"; then
2382 extra_host_zlib_configure_flags=--enable-host-shared
2383 fi
2384 ;;
fca38047
TS		 2385esac
2386AC_SUBST(extra_host_libiberty_configure_flags)
1c01ebf6 2387AC_SUBST(extra_host_zlib_configure_flags)
fca38047 2388
e4c9c075
PB		 2389# Produce a warning message for the subdirs we can't configure.
2390# This isn't especially interesting in the Cygnus tree, but in the individual
2391# FSF releases, it's important to let people know when their machine isn't
2392# supported by the one or two programs in a package.
2393
2394if test -n "${notsupp}" && test -z "${norecursion}" ; then
2395 # If $appdirs is non-empty, at least one of those directories must still
2396 # be configured, or we error out. (E.g., if the gas release supports a
2397 # specified target in some subdirs but not the gas subdir, we shouldn't
2398 # pretend that all is well.)
2399 if test -n "$appdirs" ; then
2400 for dir in $appdirs ; do
2401 if test -r $dir/Makefile.in ; then
2402 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2403 appdirs=""
2404 break
2405 fi
23f6b2f9 2406 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
e4c9c075
PB		 2407 appdirs=""
2408 break
2409 fi
2410 fi
2411 done
2412 if test -n "$appdirs" ; then
2413 echo "*** This configuration is not supported by this package." 1>&2
2414 exit 1
2415 fi
2416 fi
2417 # Okay, some application will build, or we don't care to check. Still
2418 # notify of subdirs not getting built.
2419 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2420 echo " ${notsupp}" 1>&2
2421 echo " (Any other directories should still work fine.)" 1>&2
2422fi
2423
2424case "$host" in
2425 *msdosdjgpp*)
2426 enable_gdbtk=no ;;
2427esac
2428
c3a86da9
DJ		 2429# To find our prefix, in gcc_cv_tool_prefix.
2430ACX_TOOL_DIRS
2431
e4c9c075
PB		 2432copy_dirs=
2433
526635cb 2434AC_ARG_WITH([build-sysroot],
33e39b66
AS		 2435 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2436 [use sysroot as the system root during the build])],
526635cb
MM		 2437 [if test x"$withval" != x ; then
2438 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2439 fi],
2440 [SYSROOT_CFLAGS_FOR_TARGET=])
2441AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2442
c8aea42c 2443AC_ARG_WITH([debug-prefix-map],
33e39b66
AS		 2444 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2445 [map A to B, C to D ... in debug information])],
c8aea42c
PB		 2446 [if test x"$withval" != x; then
2447 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2448 for debug_map in $withval; do
2449 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2450 done
2451 fi],
2452 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2453AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2454
1c8bd6a3
PB		 2455# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2456# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2457# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2458# We want to ensure that TARGET libraries (which we know are built with
2459# gcc) are built with "-O2 -g", so include those options when setting
2460# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2461if test "x$CFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2462 if test "x${is_cross_compiler}" = xyes; then
2463 CFLAGS_FOR_TARGET="-g -O2"
2464 else
2465 CFLAGS_FOR_TARGET=$CFLAGS
2466 case " $CFLAGS " in
2467 *" -O2 "*) ;;
2468 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2469 esac
2470 case " $CFLAGS " in
2471 *" -g "* | *" -g3 "*) ;;
2472 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2473 esac
2474 fi
1c8bd6a3
PB		 2475fi
2476AC_SUBST(CFLAGS_FOR_TARGET)
2477
2478if test "x$CXXFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2479 if test "x${is_cross_compiler}" = xyes; then
2480 CXXFLAGS_FOR_TARGET="-g -O2"
2481 else
2482 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2483 case " $CXXFLAGS " in
2484 *" -O2 "*) ;;
2485 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2486 esac
2487 case " $CXXFLAGS " in
2488 *" -g "* | *" -g3 "*) ;;
2489 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2490 esac
2491 fi
1c8bd6a3
PB		 2492fi
2493AC_SUBST(CXXFLAGS_FOR_TARGET)
2494
6f57bdf6
DK		 2495AC_SUBST(LDFLAGS_FOR_TARGET)
2496
e4c9c075
PB		 2497# Handle --with-headers=XXX. If the value is not "yes", the contents of
2498# the named directory are copied to $(tooldir)/sys-include.
2499if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2500 if test x${is_cross_compiler} = xno ; then
2501 echo 1>&2 '***' --with-headers is only supported when cross compiling
2502 exit 1
2503 fi
2504 if test x"${with_headers}" != xyes ; then
c3a86da9 2505 x=${gcc_cv_tool_prefix}
1c710c3c 2506 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
e4c9c075
PB		 2507 fi
2508fi
2509
2510# Handle --with-libs=XXX. If the value is not "yes", the contents of
2511# the name directories are copied to $(tooldir)/lib. Multiple directories
2512# are permitted.
2513if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2514 if test x${is_cross_compiler} = xno ; then
2515 echo 1>&2 '***' --with-libs is only supported when cross compiling
2516 exit 1
2517 fi
2518 if test x"${with_libs}" != xyes ; then
2519 # Copy the libraries in reverse order, so that files in the first named
2520 # library override files in subsequent libraries.
c3a86da9 2521 x=${gcc_cv_tool_prefix}
e4c9c075 2522 for l in ${with_libs}; do
1c710c3c 2523 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
e4c9c075
PB		 2524 done
2525 fi
2526fi
2527
d7f09764 2528# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
e8b05380
PB		 2529#
2530# This is done by determining whether or not the appropriate directory
2531# is available, and by checking whether or not specific configurations
2532# have requested that this magic not happen.
2533#
2534# The command line options always override the explicit settings in
6b1786aa 2535# configure.ac, and the settings in configure.ac override this magic.
e8b05380
PB		 2536#
2537# If the default for a toolchain is to use GNU as and ld, and you don't
2538# want to do that, then you should use the --without-gnu-as and
d7f09764
DN		 2539# --without-gnu-ld options for the configure script. Similarly, if
2540# the default is to use the included zlib and you don't want to do that,
2541# you should use the --with-system-zlib option for the configure script.
e8b05380
PB		 2542
2543if test x${use_gnu_as} = x &&
2544 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2545 with_gnu_as=yes
2546 extra_host_args="$extra_host_args --with-gnu-as"
2547fi
2548
2549if test x${use_gnu_ld} = x &&
5afab7ad 2550 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
e8b05380
PB		 2551 with_gnu_ld=yes
2552 extra_host_args="$extra_host_args --with-gnu-ld"
2553fi
2554
d7f09764
DN		 2555if test x${use_included_zlib} = x &&
2556 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2557 :
2558else
2559 with_system_zlib=yes
2560 extra_host_args="$extra_host_args --with-system-zlib"
2561fi
2562
e8b05380
PB		 2563# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2564# can detect this case.
2565
2566if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2567 with_newlib=yes
2568 extra_host_args="$extra_host_args --with-newlib"
2569fi
2570
e4c9c075
PB		 2571# Handle ${copy_dirs}
2572set fnord ${copy_dirs}
2573shift
2574while test $# != 0 ; do
2575 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2576 :
2577 else
2578 echo Copying $1 to $2
2579
2580 # Use the install script to create the directory and all required
2581 # parent directories.
2582 if test -d $2 ; then
2583 :
2584 else
2585 echo >config.temp
2586 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2587 fi
2588
2589 # Copy the directory, assuming we have tar.
2590 # FIXME: Should we use B in the second tar? Not all systems support it.
2591 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2592
2593 # It is the responsibility of the user to correctly adjust all
2594 # symlinks. If somebody can figure out how to handle them correctly
2595 # here, feel free to add the code.
2596
2597 echo $1 > $2/COPIED
2598 fi
2599 shift; shift
2600done
2601
e8b05380
PB		 2602# Determine a target-dependent exec_prefix that the installed
2603# gcc will search in. Keep this list sorted by triplet, with
2604# the *-*-osname triplets last.
2605md_exec_prefix=
2606case "${target}" in
30b74385 2607 i[[34567]]86-pc-msdosdjgpp*)
e8b05380
PB		 2608 md_exec_prefix=/dev/env/DJDIR/bin
2609 ;;
e8b05380 2610 *-*-hpux* | \
e8b05380 2611 *-*-nto-qnx* | \
6de66370 2612 *-*-solaris2*)
e8b05380
PB		 2613 md_exec_prefix=/usr/ccs/bin
2614 ;;
2615esac
2616
4977bab6
ZW		 2617extra_arflags_for_target=
2618extra_nmflags_for_target=
2a726918 2619extra_ranlibflags_for_target=
671aa708 2620target_makefile_frag=/dev/null
55380b08 2621case "${target}" in
58e24147
AM		 2622 spu-*-*)
2623 target_makefile_frag="config/mt-spu"
2624 ;;
74ae587e 2625 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
4bf6c438
RS		 2626 target_makefile_frag="config/mt-sde"
2627 ;;
1ec3b87b
RS		 2628 mipsisa*-*-elfoabi*)
2629 target_makefile_frag="config/mt-mips-elfoabi"
2630 ;;
08d0963a
RS		 2631 mips*-*-*linux* | mips*-*-gnu*)
2632 target_makefile_frag="config/mt-mips-gnu"
2633 ;;
707f1839
SL		 2634 nios2-*-elf*)
2635 target_makefile_frag="config/mt-nios2-elf"
2636 ;;
76052545
EB		 2637 *-*-linux-android*)
2638 target_makefile_frag="config/mt-android"
2639 ;;
416ac4d4 2640 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
98a5bb3b 2641 target_makefile_frag="config/mt-gnu"
55380b08 2642 ;;
671aa708 2643 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
4977bab6
ZW		 2644 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2645 # commands to handle both 32-bit and 64-bit objects. These flags are
2646 # harmless if we're using GNU nm or ar.
2647 extra_arflags_for_target=" -X32_64"
2648 extra_nmflags_for_target=" -B -X32_64"
55380b08 2649 ;;
c3b7d169
NN		 2650esac
2651
671aa708 2652alphaieee_frag=/dev/null
c3b7d169
NN		 2653case $target in
2654 alpha*-*-*)
2655 # This just makes sure to use the -mieee option to build target libs.
2656 # This should probably be set individually by each library.
2657 alphaieee_frag="config/mt-alphaieee"
55380b08
NN		 2658 ;;
2659esac
701afd4d 2660
55380b08
NN		 2661# If --enable-target-optspace always use -Os instead of -O2 to build
2662# the target libraries, similarly if it is not specified, use -Os
2663# on selected platforms.
671aa708 2664ospace_frag=/dev/null
55380b08
NN		 2665case "${enable_target_optspace}:${target}" in
2666 yes:*)
c3b7d169 2667 ospace_frag="config/mt-ospace"
55380b08
NN		 2668 ;;
2669 :d30v-*)
c3b7d169 2670 ospace_frag="config/mt-d30v"
55380b08 2671 ;;
d9063947 2672 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
c3b7d169 2673 ospace_frag="config/mt-ospace"
55380b08
NN		 2674 ;;
2675 no:* | :*)
2676 ;;
2677 *)
2678 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2679 ;;
2680esac
6599da04 2681
671aa708
NN		 2682# Some systems (e.g., one of the i386-aix systems the gas testers are
2683# using) don't handle "\$" correctly, so don't use it here.
1c710c3c 2684tooldir='${exec_prefix}'/${target_noncanonical}
671aa708
NN		 2685build_tooldir=${tooldir}
2686
671aa708
NN		 2687# Create a .gdbinit file which runs the one in srcdir
2688# and tells GDB to look there for source files.
2689
2690if test -r ${srcdir}/.gdbinit ; then
2691 case ${srcdir} in
2692 .) ;;
2693 *) cat > ./.gdbinit <<EOF
2694# ${NO_EDIT}
2695dir ${srcdir}
2696dir .
2697source ${srcdir}/.gdbinit
2698EOF
2699 ;;
2700 esac
2701fi
2702
6599da04
JM		 2703# Make sure that the compiler is able to generate an executable. If it
2704# can't, we are probably in trouble. We don't care whether we can run the
2705# executable--we might be using a cross compiler--we only care whether it
2706# can be created. At this point the main configure script has set CC.
aeaa0f2f 2707we_are_ok=no
6599da04
JM		 2708echo "int main () { return 0; }" > conftest.c
2709${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
aeaa0f2f
NN		 2710if test $? = 0 ; then
2711 if test -s conftest || test -s conftest.exe ; then
2712 we_are_ok=yes
2713 fi
2714fi
2715case $we_are_ok in
2716 no)
2717 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2718 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2719 rm -f conftest*
2720 exit 1
2721 ;;
2722esac
6599da04
JM		 2723rm -f conftest*
2724
d89f0ad6 2725# Decide which environment variable is used to find dynamic libraries.
fe3d5b7f
NN		 2726case "${host}" in
2727 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
111eeb6e 2728 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
d89f0ad6 2729 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
fe3d5b7f
NN		 2730 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2731esac
fe3d5b7f 2732
d89f0ad6
AL		 2733# On systems where the dynamic library environment variable is PATH,
2734# gcc/ will put dynamic libraries into a subdirectory to avoid adding
2735# built executables to PATH.
2736if test "$RPATH_ENVVAR" = PATH; then
2737 GCC_SHLIB_SUBDIR=/shlib
2738else
2739 GCC_SHLIB_SUBDIR=
2740fi
2741
beeda1d9
JJ		 2742# Adjust the toplevel makefile according to whether bootstrap was selected.
2743case $enable_bootstrap in
2744 yes)
2745 bootstrap_suffix=bootstrap
2746 BUILD_CONFIG=bootstrap-debug
2747 ;;
2748 no)
2749 bootstrap_suffix=no-bootstrap
2750 BUILD_CONFIG=
2751 ;;
2752esac
2753
2754AC_MSG_CHECKING(for default BUILD_CONFIG)
2755
2756AC_ARG_WITH([build-config],
2757 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2758 [use config/NAME.mk build configuration])],
2759 [case $with_build_config in
2760 yes) with_build_config= ;;
2761 no) with_build_config= BUILD_CONFIG= ;;
2762 esac])
2763
2764if test "x${with_build_config}" != x; then
2765 BUILD_CONFIG=$with_build_config
2766else
2767 case $BUILD_CONFIG in
2768 bootstrap-debug)
2769 if echo "int f (void) { return 0; }" > conftest.c &&
2770 ${CC} -c conftest.c &&
2771 mv conftest.o conftest.o.g0 &&
2772 ${CC} -c -g conftest.c &&
2773 mv conftest.o conftest.o.g &&
2774 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2775 :
2776 else
2777 BUILD_CONFIG=
2778 fi
2779 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2780 ;;
2781 esac
2782fi
2783AC_MSG_RESULT($BUILD_CONFIG)
2784AC_SUBST(BUILD_CONFIG)
2785
2786# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2787AC_MSG_CHECKING([for --enable-vtable-verify])
2788AC_ARG_ENABLE(vtable-verify,
318a4e6d
MF		 2789[AS_HELP_STRING([--enable-vtable-verify],
2790 [Enable vtable verification feature])],
beeda1d9
JJ		 2791[case "$enableval" in
2792 yes) enable_vtable_verify=yes ;;
2793 no) enable_vtable_verify=no ;;
2794 *) enable_vtable_verify=no;;
2795 esac],
2796[enable_vtable_verify=no])
2797AC_MSG_RESULT($enable_vtable_verify)
2798
4977bab6
ZW		 2799# Record target_configdirs and the configure arguments for target and
2800# build configuration in Makefile.
2801target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
23f6b2f9 2802build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
9e1c8fc1 2803bootstrap_fixincludes=no
4977bab6 2804
ad1e5170
JR		 2805# If we are building libgomp, bootstrap it.
2806if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2807 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2808fi
2809
beeda1d9
JJ		 2810# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2811# or bootstrap-ubsan, bootstrap it.
2812if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2813 case "$BUILD_CONFIG" in
170e618e 2814 *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
beeda1d9 2815 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
9e1c8fc1 2816 bootstrap_fixincludes=yes
beeda1d9
JJ		 2817 ;;
2818 esac
ac8701fe
L		 2819fi
2820
beeda1d9
JJ		 2821# If we are building libvtv and --enable-vtable-verify, bootstrap it.
2822if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2823 test "$enable_vtable_verify" != no; then
2077db1b
CT		 2824 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2825fi
2826
4977bab6
ZW		 2827# Determine whether gdb needs tk/tcl or not.
2828# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2829# and in that case we want gdb to be built without tk. Ugh!
2830# In fact I believe gdb is the *only* package directly dependent on tk,
2831# so we should be able to put the 'maybe's in unconditionally and
2832# leave out the maybe dependencies when enable_gdbtk is false. I'm not
2833# 100% sure that that's safe though.
e914a571 2834
b4f96efe 2835gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
4977bab6
ZW		 2836case "$enable_gdbtk" in
2837 no)
2838 GDB_TK="" ;;
e914a571
AC		 2839 yes)
2840 GDB_TK="${gdb_tk}" ;;
4977bab6 2841 *)
e914a571
AC		 2842 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2843 # distro. Eventually someone will fix this and move Insight, nee
2844 # gdbtk to a separate directory.
2845 if test -d ${srcdir}/gdb/gdbtk ; then
2846 GDB_TK="${gdb_tk}"
2847 else
2848 GDB_TK=""
2849 fi
2850 ;;
4977bab6 2851esac
ef9db8d5
DJ		 2852CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2853INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
4977bab6 2854
f9d09df0
TT		 2855# gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
2856# else does, only include them if one of these is built. The Makefile
2857# provides the ordering, so it's enough here to add to the list.
2858case " ${configdirs} " in
2859 *\ gdb\ *)
2860 configdirs="${configdirs} gnulib gdbsupport"
2861 ;;
2862 *\ gdbserver\ *)
2863 configdirs="${configdirs} gnulib gdbsupport"
2864 ;;
2865esac
98e5be21 2866
60975492 2867# Strip out unwanted targets.
8b87bb96
NN		 2868
2869# While at that, we remove Makefiles if we were started for recursive
2870# configuration, so that the top-level Makefile reconfigures them,
2871# like we used to do when configure itself was recursive.
8b87bb96 2872
3e54529c
RW		 2873# Loop over modules. We used to use the "$extrasub" feature from Autoconf
2874# but now we're fixing up the Makefile ourselves with the additional
2875# commands passed to AC_CONFIG_FILES. Use separate variables
2876# extrasub-{build,host,target} not because there is any reason to split
2877# the substitutions up that way, but only to remain below the limit of
2878# 99 commands in a script, for HP-UX sed.
da34ca3f
AO		 2879
2880# Do not nest @if/@endif or @unless/@endunless pairs, because
2881# configure will not warn you at all.
8b87bb96 2882
79cd2b23
RW		 2883case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2884 yes:yes:*\ gold\ *:*,c++,*) ;;
2885 yes:yes:*\ gold\ *:*)
2886 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2887 ;;
2888esac
2889
3e54529c 2890extrasub_build=
23f6b2f9 2891for module in ${build_configdirs} ; do
8b87bb96
NN		 2892 if test -z "${no_recursion}" \
2893 && test -f ${build_subdir}/${module}/Makefile; then
2894 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2895 rm -f ${build_subdir}/${module}/Makefile
2896 fi
3e54529c 2897 extrasub_build="$extrasub_build
60975492 2898/^@if build-$module\$/d
5607edfd 2899/^@endif build-$module\$/d
da34ca3f 2900/^@unless build-$module\$/,/^@endunless build-$module\$/d
5607edfd 2901/^@if build-$module-$bootstrap_suffix\$/d
da34ca3f
AO		 2902/^@endif build-$module-$bootstrap_suffix\$/d
2903/^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
8b87bb96 2904done
3e54529c 2905extrasub_host=
8b87bb96 2906for module in ${configdirs} ; do
a6fbc1e2 2907 if test -z "${no_recursion}"; then
f063a9ed 2908 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
a6fbc1e2
AS		 2909 if test -f ${file}; then
2910 echo 1>&2 "*** removing ${file} to force reconfigure"
2911 rm -f ${file}
2912 fi
2913 done
8b87bb96 2914 fi
9e1c8fc1
JJ		 2915 case ${module},${bootstrap_fixincludes} in
2916 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2917 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2918 esac
3e54529c 2919 extrasub_host="$extrasub_host
60975492 2920/^@if $module\$/d
5607edfd 2921/^@endif $module\$/d
da34ca3f 2922/^@unless $module\$/,/^@endunless $module\$/d
9e1c8fc1 2923/^@if $module-$host_bootstrap_suffix\$/d
da34ca3f
AO		 2924/^@endif $module-$host_bootstrap_suffix\$/d
2925/^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
8b87bb96 2926done
3e54529c 2927extrasub_target=
8b87bb96
NN		 2928for module in ${target_configdirs} ; do
2929 if test -z "${no_recursion}" \
2930 && test -f ${target_subdir}/${module}/Makefile; then
2931 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2932 rm -f ${target_subdir}/${module}/Makefile
2933 fi
00020c16
ILT		 2934
2935 # We only bootstrap target libraries listed in bootstrap_target_libs.
2936 case $bootstrap_target_libs in
2937 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2938 *) target_bootstrap_suffix=no-bootstrap ;;
2939 esac
2940
3e54529c 2941 extrasub_target="$extrasub_target
60975492 2942/^@if target-$module\$/d
5607edfd 2943/^@endif target-$module\$/d
da34ca3f 2944/^@unless target-$module\$/,/^@endunless target-$module\$/d
00020c16 2945/^@if target-$module-$target_bootstrap_suffix\$/d
da34ca3f
AO		 2946/^@endif target-$module-$target_bootstrap_suffix\$/d
2947/^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
4977bab6 2948done
f516a7da 2949
3e54529c
RW		 2950# Do the final fixup along with target modules.
2951extrasub_target="$extrasub_target
da34ca3f
AO		 2952/^@if /,/^@endif /d
2953/^@unless /d
2954/^@endunless /d"
4977bab6
ZW		 2955
2956# Create the serialization dependencies. This uses a temporary file.
2957
ade82b16 2958AC_ARG_ENABLE([serial-configure],
33e39b66
AS		 2959[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2960 [force sequential configuration of
2961 sub-packages for the host, target or build
2962 machine, or all sub-packages])])
bf1d3e81
NN		 2963
2964case ${enable_serial_configure} in
2965 yes)
2966 enable_serial_build_configure=yes
2967 enable_serial_host_configure=yes
2968 enable_serial_target_configure=yes
2969 ;;
2970esac
ade82b16 2971
4977bab6
ZW		 2972# These force 'configure's to be done one at a time, to avoid problems
2973# with contention over a shared config.cache.
2974rm -f serdep.tmp
ade82b16 2975echo '# serdep.tmp' > serdep.tmp
4977bab6 2976olditem=
bf1d3e81 2977test "x${enable_serial_build_configure}" = xyes &&
4977bab6
ZW		 2978for item in ${build_configdirs} ; do
2979 case ${olditem} in
2980 "") ;;
ade82b16 2981 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2982 esac
2983 olditem=${item}
2984done
2985olditem=
bf1d3e81 2986test "x${enable_serial_host_configure}" = xyes &&
4977bab6
ZW		 2987for item in ${configdirs} ; do
2988 case ${olditem} in
2989 "") ;;
ade82b16 2990 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2991 esac
2992 olditem=${item}
2993done
2994olditem=
bf1d3e81 2995test "x${enable_serial_target_configure}" = xyes &&
4977bab6
ZW		 2996for item in ${target_configdirs} ; do
2997 case ${olditem} in
2998 "") ;;
ade82b16 2999 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3000 esac
3001 olditem=${item}
3002done
671aa708
NN		 3003serialization_dependencies=serdep.tmp
3004AC_SUBST_FILE(serialization_dependencies)
fe3d5b7f 3005
ade82b16 3006# Base args. Strip norecursion, cache-file, srcdir, host, build,
1c710c3c 3007# target, nonopt, and variable assignments. These are the ones we
f1a036e4
NC		 3008# might not want to pass down to subconfigures. The exception being
3009# --cache-file=/dev/null, which is used to turn off the use of cache
3010# files altogether, and which should be passed on to subconfigures.
3011# Also strip program-prefix, program-suffix, and program-transform-name,
3012# so that we can pass down a consistent program-transform-name.
1c710c3c 3013baseargs=
29a63921 3014tbaseargs=
1c710c3c
DJ		 3015keep_next=no
3016skip_next=no
3017eval "set -- $ac_configure_args"
44bfc3ac
DJ		 3018for ac_arg
3019do
1c710c3c
DJ		 3020 if test X"$skip_next" = X"yes"; then
3021 skip_next=no
3022 continue
3023 fi
3024 if test X"$keep_next" = X"yes"; then
3025 case $ac_arg in
3026 *\'*)
3027 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3028 esac
3029 baseargs="$baseargs '$ac_arg'"
29a63921 3030 tbaseargs="$tbaseargs '$ac_arg'"
1c710c3c
DJ		 3031 keep_next=no
3032 continue
3033 fi
3034
3035 # Handle separated arguments. Based on the logic generated by
3036 # autoconf 2.59.
3037 case $ac_arg in
3038 *=* | --config-cache | -C | -disable-* | --disable-* \
3039 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3040 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3041 | -with-* | --with-* | -without-* | --without-* | --x)
3042 separate_arg=no
3043 ;;
3044 -*)
3045 separate_arg=yes
3046 ;;
3047 *)
3048 separate_arg=no
3049 ;;
3050 esac
3051
29a63921
AO		 3052 skip_targ=no
3053 case $ac_arg in
3054changequote(,)
3055 --with-* | --without-*)
3056 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3057
3058 case $libopt in
3059 *[-_]include)
3060 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3061 ;;
3062 *[-_]lib)
3063 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3064 ;;
3065 *)
3066 lib=$libopt
3067 ;;
3068 esac
3069changequote([,])
3070
3071 case $lib in
4a9bb2aa 3072 mpc | mpfr | gmp | isl)
29a63921
AO		 3073 # If we're processing --with-$lib, --with-$lib-include or
3074 # --with-$lib-lib, for one of the libs above, and target is
3075 # different from host, don't pass the current argument to any
3076 # target library's configure.
3077 if test x$is_cross_compiler = xyes; then
3078 skip_targ=yes
3079 fi
3080 ;;
3081 esac
3082 ;;
3083 esac
3084
1c710c3c 3085 case "$ac_arg" in
f1a036e4
NC		 3086 --cache-file=/dev/null | \
3087 -cache-file=/dev/null )
3088 # Handled here to avoid the test to skip args below.
3089 baseargs="$baseargs '$ac_arg'"
29a63921 3090 tbaseargs="$tbaseargs '$ac_arg'"
f1a036e4
NC		 3091 # Assert: $separate_arg should always be no.
3092 keep_next=$separate_arg
3093 ;;
1c710c3c
DJ		 3094 --no*)
3095 continue
3096 ;;
3097 --c* | \
3098 --sr* | \
3099 --ho* | \
3100 --bu* | \
3101 --t* | \
3102 --program-* | \
3103 -cache_file* | \
3104 -srcdir* | \
3105 -host* | \
3106 -build* | \
3107 -target* | \
3108 -program-prefix* | \
3109 -program-suffix* | \
3110 -program-transform-name* )
3111 skip_next=$separate_arg
3112 continue
3113 ;;
3114 -*)
3115 # An option. Add it.
3116 case $ac_arg in
3117 *\'*)
3118 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3119 esac
3120 baseargs="$baseargs '$ac_arg'"
29a63921
AO		 3121 if test X"$skip_targ" = Xno; then
3122 tbaseargs="$tbaseargs '$ac_arg'"
3123 fi
1c710c3c
DJ		 3124 keep_next=$separate_arg
3125 ;;
3126 *)
3127 # Either a variable assignment, or a nonopt (triplet). Don't
3128 # pass it down; let the Makefile handle this.
3129 continue
3130 ;;
3131 esac
3132done
3133# Remove the initial space we just introduced and, as these will be
3134# expanded by make, quote '$'.
3135baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
6599da04 3136
43bb47c2
DJ		 3137# Add in --program-transform-name, after --program-prefix and
3138# --program-suffix have been applied to it. Autoconf has already
3139# doubled dollar signs and backslashes in program_transform_name; we want
3140# the backslashes un-doubled, and then the entire thing wrapped in single
3141# quotes, because this will be expanded first by make and then by the shell.
3142# Also, because we want to override the logic in subdir configure scripts to
3143# choose program_transform_name, replace any s,x,x, with s,y,y,.
3144sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3145${program_transform_name}
3146EOF_SED
3147gcc_transform_name=`cat conftestsed.out`
3148rm -f conftestsed.out
3149baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
29a63921 3150tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
d9acb717
RW		 3151if test "$silent" = yes; then
3152 baseargs="$baseargs --silent"
29a63921 3153 tbaseargs="$tbaseargs --silent"
d9acb717 3154fi
0115d4a3 3155baseargs="$baseargs --disable-option-checking"
29a63921 3156tbaseargs="$tbaseargs --disable-option-checking"
43bb47c2 3157
ffedf511
RW		 3158# Record and document user additions to sub configure arguments.
3159AC_ARG_VAR([build_configargs],
3160 [additional configure arguments for build directories])
3161AC_ARG_VAR([host_configargs],
3162 [additional configure arguments for host directories])
3163AC_ARG_VAR([target_configargs],
3164 [additional configure arguments for target directories])
3165
e490616e
ZW		 3166# For the build-side libraries, we just need to pretend we're native,
3167# and not use the same cache file. Multilibs are neither needed nor
3d96b0d0
HPN		 3168# desired. We can't even use the same cache file for all build-side
3169# libraries, as they're compiled differently; some with C, some with
3170# C++ or with different feature-enabling options.
3171build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
e254d6b5 3172
4977bab6
ZW		 3173# For host modules, accept cache file option, or specification as blank.
3174case "${cache_file}" in
3175"") # empty
3176 cache_file_option="" ;;
671aa708 3177/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
4977bab6
ZW		 3178 cache_file_option="--cache-file=${cache_file}" ;;
3179*) # relative path
3180 cache_file_option="--cache-file=../${cache_file}" ;;
3181esac
3182
09438bde
NN		 3183# Host dirs don't like to share a cache file either, horribly enough.
3184# This seems to be due to autoconf 2.5x stupidity.
ffedf511 3185host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
4977bab6 3186
29a63921 3187target_configargs="$target_configargs ${tbaseargs}"
e490616e 3188
6599da04
JM		 3189# Passing a --with-cross-host argument lets the target libraries know
3190# whether they are being built with a cross-compiler or being built
3191# native. However, it would be better to use other mechanisms to make the
3192# sorts of decisions they want to make on this basis. Please consider
3193# this option to be deprecated. FIXME.
aeaa0f2f 3194if test x${is_cross_compiler} = xyes ; then
1c710c3c 3195 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
6599da04
JM		 3196fi
3197
79e0604d
FXC		 3198# Special user-friendly check for native x86_64-linux build, if
3199# multilib is not explicitly enabled.
3200case "$target:$have_compiler:$host:$target:$enable_multilib" in
3201 x86_64-*linux*:yes:$build:$build:)
e640447c 3202 # Make sure we have a development environment that handles 32-bit
79e0604d
FXC		 3203 dev64=no
3204 echo "int main () { return 0; }" > conftest.c
3205 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3206 if test $? = 0 ; then
3207 if test -s conftest || test -s conftest.exe ; then
3208 dev64=yes
3209 fi
3210 fi
3211 rm -f conftest*
3212 if test x${dev64} != xyes ; then
e640447c 3213 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		 3214 fi
3215 ;;
3216esac
3217
dc683a3f
RW		 3218# Default to --enable-multilib.
3219if test x${enable_multilib} = x ; then
3fedb745 3220 target_configargs="--enable-multilib ${target_configargs}"
dc683a3f 3221fi
6599da04 3222
5d4a5ee6
JL		 3223# Pass --with-newlib if appropriate. Note that target_configdirs has
3224# changed from the earlier setting of with_newlib.
aeaa0f2f 3225if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3fedb745 3226 target_configargs="--with-newlib ${target_configargs}"
5d4a5ee6
JL		 3227fi
3228
6b9eb62c
NN		 3229# Different target subdirs use different values of certain variables
3230# (notably CXX). Worse, multilibs use *lots* of different values.
3231# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3232# it doesn't automatically accept command-line overrides of them.
3233# This means it's not safe for target subdirs to share a cache file,
3234# which is disgusting, but there you have it. Hopefully this can be
3235# fixed in future. It's still worthwhile to use a cache file for each
3236# directory. I think.
3237
bebcd931
MS		 3238# Pass the appropriate --build, --host, --target and --cache-file arguments.
3239# We need to pass --target, as newer autoconf's requires consistency
3240# for target_alias and gcc doesn't manage it consistently.
e69bf64b 3241target_configargs="--cache-file=./config.cache ${target_configargs}"
e490616e 3242
b87487b6 3243FLAGS_FOR_TARGET=
bb654703 3244case " $target_configdirs " in
7965440a 3245 *" newlib "*)
3fedb745 3246 case " $target_configargs " in
7965440a 3247 *" --with-newlib "*)
b87487b6 3248 case "$target" in
5d571eaa 3249 *-cygwin*)
443e6238 3250 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
5d571eaa 3251 ;;
b87487b6
AO		 3252 esac
3253
afd7db25 3254 # If we're not building GCC, don't discard standard headers.
ef40bc65 3255 if test -d ${srcdir}/gcc; then
d4eb109c 3256 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
afd7db25
AO		 3257
3258 if test "${build}" != "${host}"; then
3259 # On Canadian crosses, CC_FOR_TARGET will have already been set
3260 # by `configure', so we won't have an opportunity to add -Bgcc/
3261 # to it. This is right: we don't want to search that directory
3262 # for binaries, but we want the header files in there, so add
3263 # them explicitly.
0463992b 3264 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
afd7db25
AO		 3265
3266 # Someone might think of using the pre-installed headers on
3267 # Canadian crosses, in case the installed compiler is not fully
3268 # compatible with the compiler being built. In this case, it
3269 # would be better to flag an error than risking having
3270 # incompatible object files being constructed. We can't
3271 # guarantee that an error will be flagged, but let's hope the
3272 # compiler will do it, when presented with incompatible header
3273 # files.
3274 fi
d4eb109c
AO		 3275 fi
3276
ab50d72b 3277 case "${target}-${is_cross_compiler}" in
f2a0e225 3278 i[[3456789]]86-*-linux*-no)
ab50d72b
DD		 3279 # Here host == target, so we don't need to build gcc,
3280 # so we don't want to discard standard headers.
3281 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
ab50d72b
DD		 3282 ;;
3283 *)
3284 # If we're building newlib, use its generic headers last, but search
3285 # for any libc-related directories first (so make it the last -B
3286 # switch).
3287 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
c03353e2
RIL		 3288
3289 # If we're building libgloss, find the startup file, simulator library
3290 # and linker script.
3291 case " $target_configdirs " in
3292 *" libgloss "*)
3293 # Look for startup file, simulator library and maybe linker script.
3294 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3295 # Look for libnosys.a in case the target needs it.
3296 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3297 # Most targets have the linker script in the source directory.
3298 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3299 ;;
3300 esac
ab50d72b
DD		 3301 ;;
3302 esac
b87487b6 3303 ;;
7965440a
AO		 3304 esac
3305 ;;
b87487b6 3306esac
5d571eaa 3307
b91f0a41 3308case "$target" in
5d571eaa
OS		 3309 x86_64-*mingw* | *-w64-mingw*)
3310 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3311 # however, use a symlink named 'mingw' in ${prefix} .
3312 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3313 ;;
3314 *-mingw*)
3315 # MinGW can't be handled as Cygwin above since it does not use newlib.
3316 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3317 ;;
b91f0a41 3318esac
d4eb109c 3319
6691a79e
ME		 3320# Allow the user to override the flags for
3321# our build compiler if desired.
f019adc1
MF		 3322if test x"${build}" = x"${host}" ; then
3323 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3324 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3325 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3326fi
6691a79e 3327
d4eb109c
AO		 3328# On Canadian crosses, we'll be searching the right directories for
3329# the previously-installed cross compiler, so don't bother to add
3330# flags for directories within the install tree of the compiler
3331# being built; programs in there won't even run.
ef40bc65 3332if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
b87487b6 3333 # Search for pre-installed headers if nothing else fits.
9124bc53 3334 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
b87487b6 3335fi
d4eb109c 3336
bb654703 3337if test "x${use_gnu_ld}" = x &&
55380b08 3338 echo " ${configdirs} " | grep " ld " > /dev/null ; then
b87487b6 3339 # Arrange for us to find uninstalled linker scripts.
215c351a 3340 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
b87487b6
AO		 3341fi
3342
e88a2c09
DD		 3343# Search for other target-specific linker scripts and such.
3344case "${target}" in
3e19841a
PB		 3345 mep*)
3346 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3347 ;;
e88a2c09
DD		 3348esac
3349
671aa708 3350# Makefile fragments.
7b61653a
PE		 3351for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3352do
3353 eval fragval=\$$frag
3354 if test $fragval != /dev/null; then
3355 eval $frag=${srcdir}/$fragval
3356 fi
3357done
671aa708
NN		 3358AC_SUBST_FILE(host_makefile_frag)
3359AC_SUBST_FILE(target_makefile_frag)
3360AC_SUBST_FILE(alphaieee_frag)
3361AC_SUBST_FILE(ospace_frag)
3362
3363# Miscellanea: directories, flags, etc.
671aa708 3364AC_SUBST(RPATH_ENVVAR)
d89f0ad6 3365AC_SUBST(GCC_SHLIB_SUBDIR)
671aa708
NN		 3366AC_SUBST(tooldir)
3367AC_SUBST(build_tooldir)
ef9db8d5 3368AC_SUBST(CONFIGURE_GDB_TK)
671aa708 3369AC_SUBST(GDB_TK)
ef9db8d5 3370AC_SUBST(INSTALL_GDB_TK)
671aa708
NN		 3371
3372# Build module lists & subconfigure args.
671aa708 3373AC_SUBST(build_configargs)
23f6b2f9 3374AC_SUBST(build_configdirs)
671aa708
NN		 3375
3376# Host module lists & subconfigure args.
3377AC_SUBST(host_configargs)
3378AC_SUBST(configdirs)
aae29963 3379AC_SUBST(target_configdirs)
671aa708
NN		 3380
3381# Target module lists & subconfigure args.
671aa708 3382AC_SUBST(target_configargs)
ee2312f3 3383
671aa708
NN		 3384
3385# Build tools.
0999159b
PB		 3386AC_SUBST(AR_FOR_BUILD)
3387AC_SUBST(AS_FOR_BUILD)
671aa708 3388AC_SUBST(CC_FOR_BUILD)
0999159b
PB		 3389AC_SUBST(CFLAGS_FOR_BUILD)
3390AC_SUBST(CXXFLAGS_FOR_BUILD)
3391AC_SUBST(CXX_FOR_BUILD)
3392AC_SUBST(DLLTOOL_FOR_BUILD)
0999159b 3393AC_SUBST(GFORTRAN_FOR_BUILD)
632e2a07 3394AC_SUBST(GOC_FOR_BUILD)
b4c522fa 3395AC_SUBST(GDC_FOR_BUILD)
0999159b
PB		 3396AC_SUBST(LDFLAGS_FOR_BUILD)
3397AC_SUBST(LD_FOR_BUILD)
3398AC_SUBST(NM_FOR_BUILD)
3399AC_SUBST(RANLIB_FOR_BUILD)
3400AC_SUBST(WINDMC_FOR_BUILD)
3401AC_SUBST(WINDRES_FOR_BUILD)
671aa708 3402
2abefe3d
PB		 3403# Generate default definitions for YACC, M4, LEX and other programs that run
3404# on the build machine. These are used if the Makefile can't locate these
3405# programs in objdir.
3406MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3407
3408AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3409case " $build_configdirs " in
3410 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2abefe3d
PB		 3411esac
3412
3413AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3414case " $build_configdirs " in
3415 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3416esac
3417
3418AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3419case " $build_configdirs " in
3420 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3421esac
3422
3423AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3424case " $build_configdirs " in
3425 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3426 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3427esac
3428
3429AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3430case " $build_configdirs " in
3431 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3432esac
3433
3434AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3435case " $build_configdirs " in
3436 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3437 *)
3438changequote(,)
d18ff35a 3439 # For an installed makeinfo, we require it to be from texinfo 4.7 or
2abefe3d
PB		 3440 # higher, else we use the "missing" dummy.
3441 if ${MAKEINFO} --version \
d18ff35a 3442 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
2abefe3d
PB		 3443 :
3444 else
3445 MAKEINFO="$MISSING makeinfo"
3446 fi
3447 ;;
3448changequote([,])
3449esac
3450
3451# FIXME: expect and dejagnu may become build tools?
3452
3453AC_CHECK_PROGS(EXPECT, expect, expect)
3454case " $configdirs " in
3455 *" expect "*)
3456 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3457 ;;
3458esac
3459
3460AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3461case " $configdirs " in
3462 *" dejagnu "*)
c394e891 3463 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2abefe3d
PB		 3464 ;;
3465esac
3466
3467
671aa708 3468# Host tools.
2693c0b0
PB		 3469NCN_STRICT_CHECK_TOOLS(AR, ar)
3470NCN_STRICT_CHECK_TOOLS(AS, as)
3471NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3472NCN_STRICT_CHECK_TOOLS(LD, ld)
2abefe3d 3473NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2693c0b0 3474NCN_STRICT_CHECK_TOOLS(NM, nm)
8927b7c0
RO		 3475NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3476NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
2693c0b0 3477NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
901119ae 3478NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
2693c0b0
PB		 3479NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3480NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
e4a9a572 3481NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
e7a82751 3482NCN_STRICT_CHECK_TOOLS(READELF, readelf)
671aa708
NN		 3483AC_SUBST(CC)
3484AC_SUBST(CXX)
3485AC_SUBST(CFLAGS)
3486AC_SUBST(CXXFLAGS)
671aa708 3487
2abefe3d 3488# Target tools.
e8b05380 3489AC_ARG_WITH([build-time-tools],
33e39b66
AS		 3490 [AS_HELP_STRING([--with-build-time-tools=PATH],
3491 [use given path to find target tools during the build])],
e8b05380
PB		 3492 [case x"$withval" in
3493 x/*) ;;
3494 *)
3495 with_build_time_tools=
3496 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3497 ;;
3498 esac],
3499 [with_build_time_tools=])
3500
2693c0b0
PB		 3501NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3502NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2693c0b0 3503NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2693c0b0 3504NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
632e2a07 3505NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
b4c522fa 3506NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
e8b05380
PB		 3507
3508ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3509ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3510ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3511ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3512ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3513ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
9bccfdf5 3514ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
e8b05380 3515ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
e4a9a572 3516ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
8927b7c0 3517ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
e7a82751 3518ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
e8b05380
PB		 3519ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3520ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
901119ae 3521ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
4de997d1 3522
2abefe3d
PB		 3523RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3524
3525GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3526GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3527GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
b3f122e0 3528dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
2abefe3d 3529GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2077db1b 3530 [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		 3531 c++)
3532GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2077db1b 3533 [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		 3534 c++)
3535GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3536GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2abefe3d
PB		 3537GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3538 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
632e2a07
ILT		 3539GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3540 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
b4c522fa
IB		 3541GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3542 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
2abefe3d
PB		 3543GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3544GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3545GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
ec8fd1c0 3546GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
2abefe3d 3547GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
e4a9a572 3548GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
2abefe3d 3549GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
e7a82751 3550GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
455c8f48 3551GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
2abefe3d 3552GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
901119ae 3553GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
4de997d1 3554
2abefe3d 3555AC_SUBST(FLAGS_FOR_TARGET)
4de997d1 3556AC_SUBST(RAW_CXX_FOR_TARGET)
be912515 3557
671aa708
NN		 3558# Certain tools may need extra flags.
3559AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3560RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3561NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
6599da04 3562
2abefe3d
PB		 3563# When building target libraries, except in a Canadian cross, we use
3564# the same toolchain as the compiler we just built.
3565COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3566COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3567COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3568if test $host = $build; then
3569 case " $configdirs " in
3570 *" gcc "*)
3571 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3572 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3573 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3574 ;;
3575 esac
3576fi
3577
3578AC_SUBST(COMPILER_AS_FOR_TARGET)
3579AC_SUBST(COMPILER_LD_FOR_TARGET)
3580AC_SUBST(COMPILER_NM_FOR_TARGET)
3581
ee03dc5e
AO		 3582AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3583AC_ARG_ENABLE(maintainer-mode,
33e39b66
AS		 3584[AS_HELP_STRING([--enable-maintainer-mode],
3585 [enable make rules and dependencies not useful
3586 (and sometimes confusing) to the casual installer])],
ee03dc5e
AO		 3587 USE_MAINTAINER_MODE=$enableval,
3588 USE_MAINTAINER_MODE=no)
3589AC_MSG_RESULT($USE_MAINTAINER_MODE)
3590AC_SUBST(MAINTAINER_MODE_TRUE)
3591AC_SUBST(MAINTAINER_MODE_FALSE)
3592if test "$USE_MAINTAINER_MODE" = yes; then
3593 MAINTAINER_MODE_TRUE=
3594 MAINTAINER_MODE_FALSE='#'
3595else
3596 MAINTAINER_MODE_TRUE='#'
3597 MAINTAINER_MODE_FALSE=
3598fi
3599MAINT=$MAINTAINER_MODE_TRUE
3600AC_SUBST(MAINT)dnl
3601
2805b53a
NN		 3602# ---------------------
3603# GCC bootstrap support
3604# ---------------------
3605
3606# Stage specific cflags for build.
3607stage1_cflags="-g"
3608case $build in
3609 vax-*-*)
3610 case ${GCC} in
3611 yes) stage1_cflags="-g -Wa,-J" ;;
3612 *) stage1_cflags="-g -J" ;;
3613 esac ;;
2805b53a 3614esac
0b50988a 3615
2805b53a
NN		 3616AC_SUBST(stage1_cflags)
3617
8efea775
PB		 3618# Enable --enable-checking in stage1 of the compiler.
3619AC_ARG_ENABLE(stage1-checking,
33e39b66
AS		 3620[AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3621 [choose additional checking for stage1 of the compiler])],
8efea775 3622[stage1_checking=--enable-checking=${enable_stage1_checking}],
e643dc23 3623[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
c10b5ea0
JJ		 3624 # For --disable-checking or implicit --enable-checking=release, avoid
3625 # setting --enable-checking=gc in the default stage1 checking for LTO
3626 # bootstraps. See PR62077.
c10b5ea0
JJ		 3627 case $BUILD_CONFIG in
3628 *lto*)
7db11a5a
JJ		 3629 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3630 *)
3631 stage1_checking=--enable-checking=yes,types;;
c10b5ea0 3632 esac
7db11a5a
JJ		 3633 if test "x$enable_checking" = x && \
3634 test -d ${srcdir}/gcc && \
3635 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
c100769b 3636 stage1_checking=--enable-checking=yes,types,extra
7db11a5a 3637 fi
8efea775 3638else
e643dc23 3639 stage1_checking=--enable-checking=$enable_checking,types
8efea775
PB		 3640fi])
3641AC_SUBST(stage1_checking)
3642
2805b53a 3643# Enable -Werror in bootstrap stage2 and later.
2805b53a 3644AC_ARG_ENABLE(werror,
33e39b66 3645[AS_HELP_STRING([--enable-werror],
afd88efc
ML		 3646 [enable -Werror in bootstrap stage2 and later])],
3647[
09a9c095
NN		 3648case ${enable_werror} in
3649 yes) stage2_werror_flag="--enable-werror-always" ;;
3650 *) stage2_werror_flag="" ;;
2805b53a 3651esac
afd88efc
ML		 3652],
3653[
01c712cb
ML		 3654if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3655 case $BUILD_CONFIG in
3656 bootstrap-debug)
3657 stage2_werror_flag="--enable-werror-always" ;;
3658 "")
3659 stage2_werror_flag="--enable-werror-always" ;;
3660 esac
3661fi
afd88efc 3662])
01c712cb 3663
09a9c095 3664AC_SUBST(stage2_werror_flag)
2805b53a 3665
f2689b09
SE		 3666# Specify what files to not compare during bootstrap.
3667
3668compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3669case "$target" in
3670 hppa*64*-*-hpux*) ;;
4f943869
MK		 3671 hppa*-*-hpux*) compare_exclusions="$compare_exclusions | */libgcc/lib2funcs* | gcc/function-tests.o" ;;
3672 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
f2689b09
SE		 3673esac
3674AC_SUBST(compare_exclusions)
3675
3e54529c
RW		 3676AC_CONFIG_FILES([Makefile],
3677 [sed "$extrasub_build" Makefile |
3678 sed "$extrasub_host" |
3679 sed "$extrasub_target" > mf$$
3680 mv -f mf$$ Makefile],
3681 [extrasub_build="$extrasub_build"
3682 extrasub_host="$extrasub_host"
3683 extrasub_target="$extrasub_target"])
3684AC_OUTPUT
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