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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
4d024c32 727 *-*-darwin*)
91dfef96
JM		 728 unsupported_languages="$unsupported_languages d"
729 ;;
730 bpf-*-*)
260eedb9
IB		 731 unsupported_languages="$unsupported_languages d"
732 ;;
733 esac
734 ;;
735esac
736
737# Disable libphobos on unsupported systems.
738# For testing, you can override this with --enable-libphobos.
739if test -d ${srcdir}/libphobos; then
740 if test x$enable_libphobos = x; then
741 AC_MSG_CHECKING([for libphobos support])
742 if (srcdir=${srcdir}/libphobos; \
743 . ${srcdir}/configure.tgt; \
7d31d331 744 test "$LIBPHOBOS_SUPPORTED" != "yes")
260eedb9
IB		 745 then
746 AC_MSG_RESULT([no])
747 noconfigdirs="$noconfigdirs target-libphobos"
748 else
749 AC_MSG_RESULT([yes])
750 fi
751 fi
752fi
753
1e9e0e23
JM		 754# Disable Fortran for some systems.
755case "${target}" in
756 mmix-*-*)
757 # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
758 unsupported_languages="$unsupported_languages fortran"
759 ;;
91dfef96
JM		 760 bpf-*-*)
761 unsupported_languages="$unsupported_languages fortran"
762 ;;
1e9e0e23
JM		 763esac
764
012447ea
JJ		 765# Disable libffi for some systems.
766case "${target}" in
767 powerpc-*-darwin*)
768 ;;
769 i[[3456789]]86-*-darwin*)
770 ;;
771 x86_64-*-darwin[[912]]*)
772 ;;
773 *-*-darwin*)
774 noconfigdirs="$noconfigdirs target-libffi"
775 ;;
776 *-*-netware*)
777 noconfigdirs="$noconfigdirs target-libffi"
778 ;;
779 *-*-phoenix*)
780 noconfigdirs="$noconfigdirs target-libffi"
781 ;;
782 *-*-rtems*)
783 noconfigdirs="$noconfigdirs target-libffi"
784 ;;
785 *-*-tpf*)
786 noconfigdirs="$noconfigdirs target-libffi"
787 ;;
788 *-*-uclinux*)
789 noconfigdirs="$noconfigdirs target-libffi"
790 ;;
791 *-*-vxworks*)
792 noconfigdirs="$noconfigdirs target-libffi"
793 ;;
b20e7532
AT		 794 aarch64*-*-freebsd*)
795 noconfigdirs="$noconfigdirs target-libffi"
796 ;;
012447ea
JJ		 797 alpha*-*-*vms*)
798 noconfigdirs="$noconfigdirs target-libffi"
799 ;;
800 arm*-*-freebsd*)
801 noconfigdirs="$noconfigdirs target-libffi"
802 ;;
803 arm-wince-pe)
804 noconfigdirs="$noconfigdirs target-libffi"
805 ;;
806 arm*-*-symbianelf*)
807 noconfigdirs="$noconfigdirs target-libffi"
808 ;;
91dfef96
JM		 809 bpf-*-*)
810 noconfigdirs="$noconfigdirs target-libffi"
811 ;;
012447ea
JJ		 812 cris-*-* | crisv32-*-*)
813 case "${target}" in
814 *-*-linux*)
815 ;;
816 *) # See PR46792 regarding target-libffi.
817 noconfigdirs="$noconfigdirs target-libffi";;
818 esac
819 ;;
820 hppa*64*-*-hpux*)
821 noconfigdirs="$noconfigdirs target-libffi"
822 ;;
823 hppa*-hp-hpux11*)
824 ;;
825 hppa*-*-hpux*)
826 noconfigdirs="$noconfigdirs target-libffi"
827 ;;
828 ia64*-*-*vms*)
829 noconfigdirs="$noconfigdirs target-libffi"
830 ;;
831 i[[3456789]]86-w64-mingw*)
832 noconfigdirs="$noconfigdirs target-libffi"
833 ;;
834 i[[3456789]]86-*-mingw*)
835 noconfigdirs="$noconfigdirs target-libffi"
836 ;;
837 x86_64-*-mingw*)
838 noconfigdirs="$noconfigdirs target-libffi"
839 ;;
840 mmix-*-*)
841 noconfigdirs="$noconfigdirs target-libffi"
842 ;;
843 powerpc-*-aix*)
012447ea
JJ		 844 ;;
845 rs6000-*-aix*)
012447ea
JJ		 846 ;;
847 ft32-*-*)
848 noconfigdirs="$noconfigdirs target-libffi"
849 ;;
850 *-*-lynxos*)
851 noconfigdirs="$noconfigdirs target-libffi"
852 ;;
853esac
854
855# Disable the go frontend on systems where it is known to not work. Please keep
856# this in sync with contrib/config-list.mk.
857case "${target}" in
91dfef96 858*-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
012447ea
JJ		 859 unsupported_languages="$unsupported_languages go"
860 ;;
861esac
862
f9d09df0
TT		 863# Only allow gdbserver on some systems.
864if test -d ${srcdir}/gdbserver; then
865 if test x$enable_gdbserver = x; then
866 AC_MSG_CHECKING([for gdbserver support])
867 if (srcdir=${srcdir}/gdbserver; \
868 . ${srcdir}/configure.srv; \
869 test -n "$UNSUPPORTED")
870 then
871 AC_MSG_RESULT([no])
872 noconfigdirs="$noconfigdirs gdbserver"
873 else
874 AC_MSG_RESULT([yes])
875 fi
876 fi
877fi
878
cdbc9e92
ILT		 879# Disable libgo for some systems where it is known to not work.
880# For testing, you can easily override this with --enable-libgo.
881if test x$enable_libgo = x; then
882 case "${target}" in
883 *-*-darwin*)
884 # PR 46986
885 noconfigdirs="$noconfigdirs target-libgo"
886 ;;
887 *-*-cygwin* | *-*-mingw*)
888 noconfigdirs="$noconfigdirs target-libgo"
889 ;;
91dfef96
JM		 890 bpf-*-*)
891 noconfigdirs="$noconfigdirs target-libgo"
892 ;;
cdbc9e92
ILT		 893 esac
894fi
895
c03353e2
RIL		 896# Default libgloss CPU subdirectory.
897libgloss_dir="$target_cpu"
6de9cd9a 898
fbcf0dca
JM		 899case "${target}" in
900 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
901 libgloss_dir=wince
902 ;;
4dddfc74
YZ		 903 aarch64*-*-* )
904 libgloss_dir=aarch64
905 ;;
fbcf0dca
JM		 906 arm*-*-*)
907 libgloss_dir=arm
908 ;;
909 cris-*-* | crisv32-*-*)
910 libgloss_dir=cris
911 ;;
912 hppa*-*-*)
913 libgloss_dir=pa
914 ;;
915 i[[3456789]]86-*-*)
916 libgloss_dir=i386
917 ;;
918 m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
919 libgloss_dir=m68hc11
920 ;;
921 m68*-*-* | fido-*-*)
922 libgloss_dir=m68k
923 ;;
924 mips*-*-*)
925 libgloss_dir=mips
926 ;;
927 powerpc*-*-*)
928 libgloss_dir=rs6000
929 ;;
8d2af3a2
DD		 930 pru-*-*)
931 libgloss_dir=pru
932 ;;
fbcf0dca
JM		 933 sparc*-*-*)
934 libgloss_dir=sparc
935 ;;
936esac
937
6a789d5e 938# Disable newlib and libgloss for various target OSes.
6599da04 939case "${target}" in
6a789d5e
JM		 940 alpha*-dec-osf*)
941 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
942 ;;
943 i[[3456789]]86-*-linux*)
944 # This section makes it possible to build newlib natively on linux.
945 # If we are using a cross compiler then don't configure newlib.
946 if test x${is_cross_compiler} != xno ; then
947 noconfigdirs="$noconfigdirs target-newlib"
948 fi
949 noconfigdirs="$noconfigdirs target-libgloss"
950 # If we are not using a cross compiler, do configure newlib.
951 # Note however, that newlib will only be configured in this situation
952 # if the --with-newlib option has been given, because otherwise
953 # 'target-newlib' will appear in skipdirs.
954 ;;
955 i[[3456789]]86-*-rdos*)
956 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
957 ;;
958 sh*-*-pe|mips*-*-pe|arm-wince-pe)
959 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
960 ;;
961 sparc-*-sunos4*)
962 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
963 ;;
91dfef96
JM		 964 bpf-*-*)
965 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
966 ;;
6a789d5e
JM		 967 *-*-aix*)
968 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
969 ;;
970 *-*-beos*)
971 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
972 ;;
3fa03ff9 973 *-*-chorusos)
0036370f 974 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
3fa03ff9 975 ;;
6a789d5e
JM		 976 *-*-dragonfly*)
977 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
978 ;;
979 *-*-freebsd*)
980 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
981 ;;
982 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
983 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
984 ;;
985 *-*-lynxos*)
986 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
987 ;;
988 *-*-mingw*)
989 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
990 ;;
991 *-*-netbsd*)
992 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
993 ;;
994 *-*-netware*)
995 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
996 ;;
997 *-*-tpf*)
998 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
999 ;;
1000 *-*-uclinux*)
1001 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1002 ;;
1003 *-*-vxworks*)
1004 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1005 ;;
1006esac
1007
1008case "${target}" in
1009 *-*-chorusos)
1010 ;;
3be96231
TG		 1011 aarch64-*-darwin*)
1012 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1013 noconfigdirs="$noconfigdirs sim target-rda"
1014 ;;
7431c1a1
AS		 1015 amdgcn*-*-*)
1016 ;;
3be96231
TG		 1017 arm-*-darwin*)
1018 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1019 noconfigdirs="$noconfigdirs sim target-rda"
1020 ;;
75eeae1a 1021 powerpc-*-darwin*)
e1514c3f 1022 noconfigdirs="$noconfigdirs ld gas gdb gprof"
9c8f9ec2 1023 noconfigdirs="$noconfigdirs sim target-rda"
940cde4d 1024 ;;
354ebf88
RW		 1025 i[[3456789]]86-*-darwin*)
1026 noconfigdirs="$noconfigdirs ld gprof"
1027 noconfigdirs="$noconfigdirs sim target-rda"
1028 ;;
1029 x86_64-*-darwin[[912]]*)
0db3a858
TG		 1030 noconfigdirs="$noconfigdirs ld gas gprof"
1031 noconfigdirs="$noconfigdirs sim target-rda"
1032 ;;
42c1cd8a
AT		 1033 *-*-darwin*)
1034 noconfigdirs="$noconfigdirs ld gas gdb gprof"
1035 noconfigdirs="$noconfigdirs sim target-rda"
42c1cd8a 1036 ;;
8c6d158a 1037 *-*-dragonfly*)
8c6d158a 1038 ;;
c3f84f61 1039 *-*-freebsd*)
6de9cd9a
DN		 1040 if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
1041 && test -f /usr/local/include/gmp.h; then
1042 with_gmp=/usr/local
1043 fi
6de9cd9a 1044 ;;
ef4e7569
US		 1045 *-*-kaos*)
1046 # Remove unsupported stuff on all kaOS configurations.
ef4e7569
US		 1047 noconfigdirs="$noconfigdirs target-libgloss"
1048 ;;
51584787 1049 *-*-netbsd*)
51584787 1050 ;;
61fec9ff 1051 *-*-netware*)
6599da04 1052 ;;
fd6487af
JS		 1053 *-*-phoenix*)
1054 noconfigdirs="$noconfigdirs target-libgloss"
1055 ;;
3fbc0b70 1056 *-*-rtems*)
2909494b 1057 noconfigdirs="$noconfigdirs target-libgloss"
3fbc0b70 1058 ;;
a8ba31f2
EC		 1059 # The tpf target doesn't support gdb yet.
1060 *-*-tpf*)
6a789d5e 1061 noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
a8ba31f2 1062 ;;
5785c0ed 1063 *-*-uclinux*)
6a789d5e 1064 noconfigdirs="$noconfigdirs target-rda"
5785c0ed 1065 ;;
6599da04 1066 *-*-vxworks*)
6599da04 1067 ;;
b104e095 1068 alpha*-dec-osf*)
603606e7 1069 # ld works, but does not support shared libraries.
6599da04 1070 # gas doesn't generate exception information.
6a789d5e 1071 noconfigdirs="$noconfigdirs gas ld"
6599da04
JM		 1072 ;;
1073 alpha*-*-*vms*)
2909494b 1074 noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
6599da04
JM		 1075 ;;
1076 alpha*-*-*)
1077 # newlib is not 64 bit ready
2909494b 1078 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1079 ;;
91dfef96
JM		 1080 bpf-*-*)
1081 noconfigdirs="$noconfigdirs target-libobjc target-libbacktrace"
1082 ;;
3a685f6f 1083 sh*-*-pe|mips*-*-pe|*arm-wince-pe)
b4f96efe 1084 noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
3a685f6f 1085 ;;
2fd88f4f
AK		 1086 arc*-*-*)
1087 noconfigdirs="$noconfigdirs sim"
1088 ;;
6599da04 1089 arm-*-pe*)
2909494b 1090 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1091 ;;
5d4a5ee6 1092 arm-*-riscix*)
0036370f 1093 noconfigdirs="$noconfigdirs ld target-libgloss"
5d4a5ee6 1094 ;;
b588ae30
GJL		 1095 avr-*-*)
1096 if test x${with_avrlibc} != xno; then
1097 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1098 fi
1099 ;;
a5a438f5 1100 c4x-*-* | tic4x-*-*)
0036370f 1101 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1102 ;;
0036370f
JM		 1103 tic54x-*-*)
1104 noconfigdirs="$noconfigdirs target-libgloss gdb"
ab50d72b 1105 ;;
6599da04 1106 d10v-*-*)
0036370f 1107 noconfigdirs="$noconfigdirs target-libgloss"
d207ebef
JM		 1108 ;;
1109 d30v-*-*)
0036370f 1110 noconfigdirs="$noconfigdirs gdb"
6599da04 1111 ;;
09b5f8bf 1112 fr30-*-elf*)
2909494b 1113 noconfigdirs="$noconfigdirs gdb"
09b5f8bf 1114 ;;
a05c2c75
L		 1115 ft32-*-*)
1116 noconfigdirs="$noconfigdirs target-rda gprof"
1117 ;;
55f2d967 1118 moxie-*-*)
a05c2c75 1119 noconfigdirs="$noconfigdirs"
55f2d967 1120 ;;
ab50d72b 1121 h8300*-*-*)
2909494b 1122 noconfigdirs="$noconfigdirs target-libgloss"
ab50d72b 1123 ;;
6599da04 1124 h8500-*-*)
0036370f 1125 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1126 ;;
9d069a4f 1127 hppa1.1-*-osf* | hppa1.1-*-bsd* )
9d069a4f 1128 ;;
a05c2c75
L		 1129 hppa*64*-*-hpux*)
1130 noconfigdirs="$noconfigdirs gdb"
1131 ;;
1132 hppa*-*-hpux11*)
1133 noconfigdirs="$noconfigdirs gdb ld"
1134 ;;
4569f85e 1135 hppa*64*-*-linux*)
cdbff0ab 1136 ;;
56f8587a 1137 hppa*-*-linux*)
3e732ba0 1138 ;;
6599da04 1139 hppa*-*-*elf* | \
bae29210 1140 hppa*-*-lites* | \
66350331 1141 hppa*-*-openbsd* | \
bae29210 1142 hppa*64*-*-*)
6599da04 1143 ;;
c03353e2 1144 hppa*-*-pro*)
c03353e2 1145 ;;
6599da04 1146 hppa*-*-*)
2909494b 1147 noconfigdirs="$noconfigdirs ld"
d207ebef 1148 ;;
fb87ad5d 1149 i960-*-*)
0036370f 1150 noconfigdirs="$noconfigdirs gdb"
fb87ad5d 1151 ;;
d207ebef
JM		 1152 ia64*-*-elf*)
1153 # No gdb support yet.
1bcce263 1154 noconfigdirs="$noconfigdirs readline libgui itcl gdb"
d207ebef 1155 ;;
ab50d72b 1156 ia64*-**-hpux*)
5a2931d1 1157 # No ld support yet.
a05c2c75 1158 noconfigdirs="$noconfigdirs gdb libgui itcl ld"
ab50d72b 1159 ;;
52535a64 1160 ia64*-*-*vms*)
091fe9ca
TG		 1161 # No ld support yet.
1162 noconfigdirs="$noconfigdirs libgui itcl ld"
52535a64 1163 ;;
ef4c4300 1164 i[[3456789]]86-w64-mingw*)
ef4c4300
KT		 1165 ;;
1166 i[[3456789]]86-*-mingw*)
b91f0a41 1167 target_configdirs="$target_configdirs target-winsup"
5d571eaa 1168 ;;
d207ebef
JM		 1169 *-*-cygwin*)
1170 target_configdirs="$target_configdirs target-libtermcap target-winsup"
1bcce263 1171 noconfigdirs="$noconfigdirs target-libgloss"
801e2270 1172 # always build newlib if winsup directory is present.
b91f0a41 1173 if test -d "$srcdir/winsup/cygwin"; then
801e2270 1174 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
c8e6cd41 1175 elif test -d "$srcdir/newlib"; then
b91f0a41 1176 echo "Warning: winsup/cygwin is missing so newlib can't be built."
801e2270 1177 fi
5d571eaa 1178 ;;
f2a0e225 1179 i[[3456789]]86-*-pe)
ebb9f8b0 1180 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1181 ;;
f2a0e225 1182 i[[3456789]]86-*-sco3.2v5*)
6599da04
JM		 1183 # The linker does not yet know about weak symbols in COFF,
1184 # and is not configured to handle mixed ELF and COFF.
0036370f 1185 noconfigdirs="$noconfigdirs ld target-libgloss"
6599da04 1186 ;;
f2a0e225 1187 i[[3456789]]86-*-sco*)
0036370f 1188 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1189 ;;
fbdd5d87 1190 i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
7c01b2b5 1191 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1192 ;;
f2a0e225 1193 i[[3456789]]86-*-sysv4*)
0036370f 1194 noconfigdirs="$noconfigdirs target-libgloss"
6599da04 1195 ;;
f2a0e225 1196 i[[3456789]]86-*-beos*)
6a789d5e 1197 noconfigdirs="$noconfigdirs gdb"
3aa83176 1198 ;;
d1f8db0c 1199 i[[3456789]]86-*-rdos*)
6a789d5e 1200 noconfigdirs="$noconfigdirs gdb"
c03353e2 1201 ;;
d344dce9 1202 mmix-*-*)
2909494b 1203 noconfigdirs="$noconfigdirs gdb"
d344dce9 1204 ;;
ab34901f 1205 mt-*-*)
79dd769c
AH		 1206 noconfigdirs="$noconfigdirs sim"
1207 ;;
58b40a67
FT		 1208 nfp-*-*)
1209 noconfigdirs="$noconfigdirs ld gas gdb gprof sim"
1210 noconfigdirs="$noconfigdirs $target_libraries"
1211 ;;
e6cbe965
SC		 1212 pdp11-*-*)
1213 noconfigdirs="$noconfigdirs gdb gprof"
1214 ;;
6599da04
JM		 1215 powerpc-*-aix*)
1216 # copied from rs6000-*-* entry
6a789d5e 1217 noconfigdirs="$noconfigdirs gprof"
6599da04 1218 ;;
4569f85e 1219 powerpc*-*-winnt* | powerpc*-*-pe*)
6599da04 1220 target_configdirs="$target_configdirs target-winsup"
0036370f 1221 noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
6599da04
JM		 1222 # always build newlib.
1223 skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1224 ;;
1225 # This is temporary until we can link against shared libraries
1226 powerpcle-*-solaris*)
0036370f 1227 noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
6599da04 1228 ;;
0da3b5a7 1229 powerpc-*-beos*)
6a789d5e 1230 noconfigdirs="$noconfigdirs gdb"
d207ebef 1231 ;;
6599da04 1232 rs6000-*-lynxos*)
6a789d5e 1233 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1234 ;;
1235 rs6000-*-aix*)
6a789d5e 1236 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1237 ;;
1238 rs6000-*-*)
2909494b 1239 noconfigdirs="$noconfigdirs gprof"
6599da04
JM		 1240 ;;
1241 m68k-apollo-*)
0036370f 1242 noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
6599da04 1243 ;;
ca9fe997 1244 microblaze*)
2909494b 1245 noconfigdirs="$noconfigdirs gprof"
ca9fe997 1246 ;;
74ae587e 1247 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
d9dced13
RS		 1248 if test x$with_newlib = xyes; then
1249 noconfigdirs="$noconfigdirs gprof"
1250 fi
d9dced13 1251 ;;
6599da04 1252 mips*-*-irix5*)
0036370f 1253 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04
JM		 1254 ;;
1255 mips*-*-irix6*)
2909494b 1256 noconfigdirs="$noconfigdirs gprof target-libgloss"
6599da04 1257 ;;
6599da04 1258 mips*-*-bsd*)
bc98bcc4 1259 noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
6599da04 1260 ;;
9bec4bf0 1261 mips*-*-linux*)
9bec4bf0 1262 ;;
bc98bcc4
JBG		 1263 mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
1264 | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
1265 noconfigdirs="$noconfigdirs ld gas gprof"
1266 ;;
6599da04 1267 mips*-*-*)
2909494b 1268 noconfigdirs="$noconfigdirs gprof"
6599da04 1269 ;;
738f2522 1270 nvptx*-*-*)
738f2522
BS		 1271 noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc"
1272 ;;
bc6d9014 1273 sh-*-*)
ea2002ba
CB		 1274 case "${target}" in
1275 sh*-*-elf)
2909494b 1276 ;;
ea2002ba 1277 *)
2909494b 1278 noconfigdirs="$noconfigdirs target-libgloss" ;;
ea2002ba 1279 esac
6599da04
JM		 1280 ;;
1281 sparc-*-sunos4*)
6a789d5e 1282 if test x${is_cross_compiler} = xno ; then
6599da04
JM		 1283 use_gnu_ld=no
1284 fi
1285 ;;
b42f0d7e 1286 tic6x-*-*)
0d557ff8 1287 noconfigdirs="$noconfigdirs sim"
b42f0d7e 1288 ;;
341c653c 1289 tilepro*-*-* | tilegx*-*-*)
db1d217c
WL		 1290 noconfigdirs="$noconfigdirs sim"
1291 ;;
6599da04 1292 v810-*-*)
0036370f 1293 noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
6599da04
JM		 1294 ;;
1295 vax-*-*)
2909494b 1296 noconfigdirs="$noconfigdirs target-newlib target-libgloss"
6599da04 1297 ;;
1fc1d82e
MR		 1298 wasm32-*-*)
1299 noconfigdirs="$noconfigdirs ld"
1300 ;;
6599da04
JM		 1301esac
1302
6599da04
JM		 1303# If we aren't building newlib, then don't build libgloss, since libgloss
1304# depends upon some newlib header files.
1305case "${noconfigdirs}" in
1306 *target-libgloss*) ;;
1307 *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
55380b08 1308esac
6599da04 1309
55380b08 1310# Work in distributions that contain no compiler tools, like Autoconf.
671aa708 1311host_makefile_frag=/dev/null
55380b08
NN		 1312if test -d ${srcdir}/config ; then
1313case "${host}" in
f2a0e225 1314 i[[3456789]]86-*-msdosdjgpp*)
55380b08
NN		 1315 host_makefile_frag="config/mh-djgpp"
1316 ;;
1317 *-cygwin*)
2a79c47f 1318 ACX_CHECK_CYGWIN_CAT_WORKS
55380b08
NN		 1319 host_makefile_frag="config/mh-cygwin"
1320 ;;
c53a18d3 1321 *-mingw*)
1f5a6b84 1322 host_makefile_frag="config/mh-mingw"
738a52d3 1323 ;;
cabb9d59 1324 alpha*-linux*)
13be44ed
UB		 1325 host_makefile_frag="config/mh-alpha-linux"
1326 ;;
00afcaa0 1327 hppa*-hp-hpux10*)
00afcaa0 1328 host_makefile_frag="config/mh-pa-hpux10"
55380b08 1329 ;;
111eeb6e 1330 hppa*-hp-hpux*)
00afcaa0
PB		 1331 host_makefile_frag="config/mh-pa"
1332 ;;
1333 hppa*-*)
1334 host_makefile_frag="config/mh-pa"
1335 ;;
d8ed14ce
IS		 1336 *-*-darwin*)
1337 host_makefile_frag="config/mh-darwin"
be8fff81 1338 ;;
d19bca38
PB		 1339 powerpc-*-aix*)
1340 host_makefile_frag="config/mh-ppc-aix"
1341 ;;
1342 rs6000-*-aix*)
1343 host_makefile_frag="config/mh-ppc-aix"
1344 ;;
55380b08
NN		 1345esac
1346fi
1347
e4c9c075 1348if test "${build}" != "${host}" ; then
0999159b
PB		 1349 AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1350 AS_FOR_BUILD=${AS_FOR_BUILD-as}
e4c9c075 1351 CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
0999159b 1352 CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
0999159b 1353 GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
632e2a07 1354 GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
b4c522fa 1355 GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc}
0999159b
PB		 1356 DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1357 LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1358 NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1359 RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1360 WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1361 WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
e4c9c075 1362else
0999159b
PB		 1363 AR_FOR_BUILD="\$(AR)"
1364 AS_FOR_BUILD="\$(AS)"
e4c9c075 1365 CC_FOR_BUILD="\$(CC)"
0999159b 1366 CXX_FOR_BUILD="\$(CXX)"
0999159b 1367 GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
632e2a07 1368 GOC_FOR_BUILD="\$(GOC)"
b4c522fa 1369 GDC_FOR_BUILD="\$(GDC)"
0999159b
PB		 1370 DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1371 LD_FOR_BUILD="\$(LD)"
1372 NM_FOR_BUILD="\$(NM)"
1373 RANLIB_FOR_BUILD="\$(RANLIB)"
1374 WINDRES_FOR_BUILD="\$(WINDRES)"
1375 WINDMC_FOR_BUILD="\$(WINDMC)"
c3a86da9 1376fi
e4c9c075 1377
c3a86da9
DJ		 1378AC_PROG_CC
1379AC_PROG_CXX
1380
1381# We must set the default linker to the linker used by gcc for the correct
1382# operation of libtool. If LD is not defined and we are using gcc, try to
1383# set the LD default to the ld used by gcc.
1384if test -z "$LD"; then
1385 if test "$GCC" = yes; then
1386 case $build in
1387 *-*-mingw*)
1388 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1389 *)
1390 gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1391 esac
1392 case $gcc_prog_ld in
1393 # Accept absolute paths.
1394 [[\\/]* | [A-Za-z]:[\\/]*)]
1395 LD="$gcc_prog_ld" ;;
1396 esac
1397 fi
e4c9c075
PB		 1398fi
1399
0b21f5d3
EB		 1400# Check whether -static-libstdc++ -static-libgcc is supported.
1401have_static_libs=no
1402if test "$GCC" = yes; then
1403 saved_LDFLAGS="$LDFLAGS"
1404
1405 LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
1406 AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc])
1407 AC_LANG_PUSH(C++)
22e05272 1408 AC_LINK_IFELSE([AC_LANG_SOURCE([
0d6414b2
EB		 1409#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
1410#error -static-libstdc++ not implemented
1411#endif
22e05272 1412int main() {}])],
0b21f5d3
EB		 1413 [AC_MSG_RESULT([yes]); have_static_libs=yes],
1414 [AC_MSG_RESULT([no])])
1415 AC_LANG_POP(C++)
1416
1417 LDFLAGS="$saved_LDFLAGS"
1418fi
1419
e4c9c075 1420ACX_PROG_GNAT
a76494aa 1421ACX_PROG_CMP_IGNORE_INITIAL
e4c9c075 1422
ff3ac0f4
ILT		 1423AC_ARG_ENABLE([bootstrap],
1424[AS_HELP_STRING([--enable-bootstrap],
1425 [enable bootstrapping @<:@yes if native build@:>@])],,
1426enable_bootstrap=default)
1427
1428# Issue errors and warnings for invalid/strange bootstrap combinations.
bf03b9ff
ILT		 1429if test -r $srcdir/gcc/configure; then
1430 have_compiler=yes
1431else
1432 have_compiler=no
1433fi
ff3ac0f4
ILT		 1434
1435case "$have_compiler:$host:$target:$enable_bootstrap" in
1436 *:*:*:no) ;;
1437
1438 # Default behavior. Enable bootstrap if we have a compiler
1439 # and we are in a native configuration.
1440 yes:$build:$build:default)
1441 enable_bootstrap=yes ;;
1442
1443 *:*:*:default)
1444 enable_bootstrap=no ;;
1445
1446 # We have a compiler and we are in a native configuration, bootstrap is ok
1447 yes:$build:$build:yes)
1448 ;;
1449
1450 # Other configurations, but we have a compiler. Assume the user knows
1451 # what he's doing.
1452 yes:*:*:yes)
1453 AC_MSG_WARN([trying to bootstrap a cross compiler])
1454 ;;
1455
1456 # No compiler: if they passed --enable-bootstrap explicitly, fail
1457 no:*:*:yes)
1458 AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1459
1460 # Fail if wrong command line
1461 *)
1462 AC_MSG_ERROR([invalid option for --enable-bootstrap])
1463 ;;
1464esac
1465
5329b59a 1466# When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a
ffac9597
JM		 1467# C++11 compiler can still start the bootstrap. Otherwise, if building GCC,
1468# require C++11 (or higher).
46070488 1469if test "$enable_bootstrap:$GXX" = "yes:yes"; then
5329b59a 1470 CXX="$CXX -std=c++11"
ffac9597
JM		 1471elif test "$have_compiler" = yes; then
1472 AX_CXX_COMPILE_STDCXX(11)
7ffcf5d6
TB		 1473
1474 if test "${build}" != "${host}"; then
1475 AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD])
1476 fi
46070488
JM		 1477fi
1478
592c90ff
KG		 1479# Used for setting $lt_cv_objdir
1480_LT_CHECK_OBJDIR
1481
acd26225 1482# Check for GMP, MPFR and MPC
3a5729ea 1483gmplibs="-lmpc -lmpfr -lgmp"
6de9cd9a 1484gmpinc=
e69bf64b 1485have_gmp=no
acd26225
KG		 1486
1487# Specify a location for mpc
1488# check for this first so it ends up on the link line before mpfr.
33e39b66
AS		 1489AC_ARG_WITH(mpc,
1490[AS_HELP_STRING([--with-mpc=PATH],
1491 [specify prefix directory for installed MPC package.
1492 Equivalent to --with-mpc-include=PATH/include
1493 plus --with-mpc-lib=PATH/lib])])
1494AC_ARG_WITH(mpc-include,
1495[AS_HELP_STRING([--with-mpc-include=PATH],
1496 [specify directory for installed MPC include files])])
1497AC_ARG_WITH(mpc-lib,
1498[AS_HELP_STRING([--with-mpc-lib=PATH],
1499 [specify directory for the installed MPC library])])
acd26225
KG		 1500
1501if test "x$with_mpc" != x; then
3a5729ea
KG		 1502 gmplibs="-L$with_mpc/lib $gmplibs"
1503 gmpinc="-I$with_mpc/include $gmpinc"
acd26225
KG		 1504fi
1505if test "x$with_mpc_include" != x; then
3a5729ea 1506 gmpinc="-I$with_mpc_include $gmpinc"
acd26225
KG		 1507fi
1508if test "x$with_mpc_lib" != x; then
3a5729ea 1509 gmplibs="-L$with_mpc_lib $gmplibs"
acd26225
KG		 1510fi
1511if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
592c90ff 1512 gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
3a5729ea 1513 gmpinc='-I$$s/mpc/src '"$gmpinc"
acd26225
KG		 1514 # Do not test the mpc version. Assume that it is sufficient, since
1515 # it is in the source tree, and the library has not been built yet
1516 # but it would be included on the link line in the version check below
1517 # hence making the test fail.
3a5729ea 1518 have_gmp=yes
acd26225 1519fi
e69bf64b 1520
bebf829d
PB		 1521# Specify a location for mpfr
1522# check for this first so it ends up on the link line before gmp.
33e39b66
AS		 1523AC_ARG_WITH(mpfr-dir,
1524[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1525[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1526Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1527
1528AC_ARG_WITH(mpfr,
1529[AS_HELP_STRING([--with-mpfr=PATH],
1530 [specify prefix directory for installed MPFR package.
1531 Equivalent to --with-mpfr-include=PATH/include
1532 plus --with-mpfr-lib=PATH/lib])])
1533AC_ARG_WITH(mpfr-include,
1534[AS_HELP_STRING([--with-mpfr-include=PATH],
1535 [specify directory for installed MPFR include files])])
1536AC_ARG_WITH(mpfr-lib,
1537[AS_HELP_STRING([--with-mpfr-lib=PATH],
1538 [specify directory for the installed MPFR library])])
bebf829d
PB		 1539
1540if test "x$with_mpfr" != x; then
1541 gmplibs="-L$with_mpfr/lib $gmplibs"
3a5729ea 1542 gmpinc="-I$with_mpfr/include $gmpinc"
bebf829d 1543fi
8a877c9c 1544if test "x$with_mpfr_include" != x; then
3a5729ea 1545 gmpinc="-I$with_mpfr_include $gmpinc"
8a877c9c
KG		 1546fi
1547if test "x$with_mpfr_lib" != x; then
1548 gmplibs="-L$with_mpfr_lib $gmplibs"
1549fi
e69bf64b 1550if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
8f3675f8
MR		 1551 # MPFR v3.1.0 moved the sources into a src sub-directory.
1552 if ! test -d ${srcdir}/mpfr/src; then
1553 AC_MSG_ERROR([dnl
1554Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
1555 fi
00f35794
BE		 1556 gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
1557 gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
1558 extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
e69bf64b
PB		 1559 # Do not test the mpfr version. Assume that it is sufficient, since
1560 # it is in the source tree, and the library has not been built yet
1561 # but it would be included on the link line in the version check below
1562 # hence making the test fail.
1563 have_gmp=yes
1564fi
bebf829d 1565
6de9cd9a 1566# Specify a location for gmp
33e39b66
AS		 1567AC_ARG_WITH(gmp-dir,
1568[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1569[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1570Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1571
1572AC_ARG_WITH(gmp,
1573[AS_HELP_STRING([--with-gmp=PATH],
1574 [specify prefix directory for the installed GMP package.
1575 Equivalent to --with-gmp-include=PATH/include
1576 plus --with-gmp-lib=PATH/lib])])
1577AC_ARG_WITH(gmp-include,
1578[AS_HELP_STRING([--with-gmp-include=PATH],
1579 [specify directory for installed GMP include files])])
1580AC_ARG_WITH(gmp-lib,
1581[AS_HELP_STRING([--with-gmp-lib=PATH],
1582 [specify directory for the installed GMP library])])
6de9cd9a 1583
6de9cd9a 1584
bebf829d
PB		 1585if test "x$with_gmp" != x; then
1586 gmplibs="-L$with_gmp/lib $gmplibs"
1587 gmpinc="-I$with_gmp/include $gmpinc"
6de9cd9a 1588fi
8a877c9c
KG		 1589if test "x$with_gmp_include" != x; then
1590 gmpinc="-I$with_gmp_include $gmpinc"
1591fi
1592if test "x$with_gmp_lib" != x; then
1593 gmplibs="-L$with_gmp_lib $gmplibs"
1594fi
e69bf64b 1595if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
592c90ff 1596 gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
e69bf64b 1597 gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
9183bdcf 1598 extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
592c90ff 1599 extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
0ff2d841 1600 extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
e69bf64b
PB		 1601 # Do not test the gmp version. Assume that it is sufficient, since
1602 # it is in the source tree, and the library has not been built yet
1603 # but it would be included on the link line in the version check below
1604 # hence making the test fail.
1605 have_gmp=yes
1606fi
6de9cd9a 1607
d943d7c4 1608if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
e69bf64b
PB		 1609 have_gmp=yes
1610 saved_CFLAGS="$CFLAGS"
1611 CFLAGS="$CFLAGS $gmpinc"
362c6d2f
KG		 1612 # Check for the recommended and required versions of GMP.
1613 AC_MSG_CHECKING([for the correct version of gmp.h])
e69bf64b 1614 AC_TRY_COMPILE([#include "gmp.h"],[
362c6d2f
KG		 1615 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1616 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
385c0681 1617 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
e48d66a9 1618 choke me
e69bf64b 1619 #endif
e8fd69bb 1620 ], [AC_TRY_COMPILE([#include <gmp.h>],[
362c6d2f
KG		 1621 #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1622 #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1623 #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1624 choke me
1625 #endif
e8fd69bb 1626 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1627 [AC_MSG_RESULT([no]); have_gmp=no])
e69bf64b 1628
acd26225 1629 # If we have GMP, check the MPFR version.
e69bf64b 1630 if test x"$have_gmp" = xyes; then
362c6d2f
KG		 1631 # Check for the recommended and required versions of MPFR.
1632 AC_MSG_CHECKING([for the correct version of mpfr.h])
acd26225 1633 AC_TRY_COMPILE([#include <gmp.h>
e69bf64b 1634 #include <mpfr.h>],[
8be34204 1635 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,0)
e69bf64b
PB		 1636 choke me
1637 #endif
e8fd69bb 1638 ], [AC_TRY_COMPILE([#include <gmp.h>
acd26225 1639 #include <mpfr.h>],[
8be34204 1640 #if MPFR_VERSION < MPFR_VERSION_NUM(3,1,6)
acd26225
KG		 1641 choke me
1642 #endif
e8fd69bb 1643 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
acd26225
KG		 1644 [AC_MSG_RESULT([no]); have_gmp=no])
1645 fi
1646
1647 # Check for the MPC header version.
3a5729ea 1648 if test x"$have_gmp" = xyes ; then
362c6d2f 1649 # Check for the recommended and required versions of MPC.
acd26225
KG		 1650 AC_MSG_CHECKING([for the correct version of mpc.h])
1651 AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f 1652 #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
acd26225
KG		 1653 choke me
1654 #endif
e8fd69bb 1655 ], [AC_TRY_COMPILE([#include <mpc.h>],[
362c6d2f
KG		 1656 #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1657 choke me
1658 #endif
e8fd69bb 1659 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
362c6d2f 1660 [AC_MSG_RESULT([no]); have_gmp=no])
acd26225
KG		 1661 fi
1662
1663 # Now check the MPFR library.
1664 if test x"$have_gmp" = xyes; then
1665 saved_LIBS="$LIBS"
1666 LIBS="$LIBS $gmplibs"
3a5729ea
KG		 1667 AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1668 AC_TRY_LINK([#include <mpc.h>],[
54e433bc
MK		 1669 mpfr_t n;
1670 mpfr_t x;
3a5729ea 1671 mpc_t c;
e69bf64b 1672 int t;
54e433bc
MK		 1673 mpfr_init (n);
1674 mpfr_init (x);
90ca6847
TB		 1675 mpfr_atan2 (n, n, x, MPFR_RNDN);
1676 mpfr_erfc (n, x, MPFR_RNDN);
1677 mpfr_subnormalize (x, t, MPFR_RNDN);
3a5729ea
KG		 1678 mpfr_clear(n);
1679 mpfr_clear(x);
1680 mpc_init2 (c, 53);
1681 mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1682 mpc_cosh (c, c, MPC_RNDNN);
1683 mpc_pow (c, c, c, MPC_RNDNN);
1684 mpc_acosh (c, c, MPC_RNDNN);
1685 mpc_clear (c);
acd26225
KG		 1686 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1687 LIBS="$saved_LIBS"
e69bf64b 1688 fi
acd26225 1689
e69bf64b 1690 CFLAGS="$saved_CFLAGS"
6de9cd9a 1691
362c6d2f
KG		 1692# The library versions listed in the error message below should match
1693# the HARD-minimums enforced above.
e69bf64b 1694 if test x$have_gmp != xyes; then
8be34204 1695 AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 3.1.0+ and MPC 0.8.0+.
3a5729ea
KG		 1696Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1697their locations. Source code for these libraries can be found at
1698their respective hosting sites as well as at
aeebd94c 1699https://gcc.gnu.org/pub/gcc/infrastructure/. See also
3a5729ea
KG		 1700http://gcc.gnu.org/install/prerequisites.html for additional info. If
1701you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1702make sure that you have installed both the libraries and the header
1703files. They may be located in separate packages.])
e69bf64b 1704 fi
70ec446f
KG		 1705fi
1706
acd26225 1707# Flags needed for both GMP, MPFR and/or MPC.
6de9cd9a
DN		 1708AC_SUBST(gmplibs)
1709AC_SUBST(gmpinc)
9e3eba15 1710AC_SUBST(extra_mpfr_configure_flags)
acd26225
KG		 1711AC_SUBST(extra_mpc_gmp_configure_flags)
1712AC_SUBST(extra_mpc_mpfr_configure_flags)
0ff2d841 1713AC_SUBST(extra_isl_gmp_configure_flags)
6de9cd9a 1714
00020c16
ILT		 1715# Libraries to use for stage1 or when not bootstrapping.
1716AC_ARG_WITH(stage1-libs,
33e39b66 1717[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
00020c16
ILT		 1718[if test "$withval" = "no" -o "$withval" = "yes"; then
1719 stage1_libs=
1720 else
1721 stage1_libs=$withval
1722 fi],
5dc85f7e 1723[stage1_libs=])
00020c16
ILT		 1724AC_SUBST(stage1_libs)
1725
aac9103b
TT		 1726# Whether or not to use -static-libstdc++ and -static-libgcc. The
1727# default is yes if gcc is being built; no otherwise. The reason for
1728# this default is that gdb is sometimes linked against GNU Source
1729# Highlight, which is a shared library that uses C++ exceptions. In
1730# this case, -static-libstdc++ will cause crashes.
1731AC_ARG_WITH(static-standard-libraries,
1732[AS_HELP_STRING([--with-static-standard-libraries],
1733 [use -static-libstdc++ and -static-libgcc (default=auto)])],
1734[], [with_static_standard_libraries=auto])
1735if test "$with_static_standard_libraries" = auto; then
1736 with_static_standard_libraries=$have_compiler
1737fi
1738
0b21f5d3
EB		 1739# Linker flags to use for stage1 or when not bootstrapping.
1740AC_ARG_WITH(stage1-ldflags,
1741[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1742[if test "$withval" = "no" -o "$withval" = "yes"; then
1743 stage1_ldflags=
1744 else
1745 stage1_ldflags=$withval
1746 fi],
1747[stage1_ldflags=
1748 # In stage 1, default to linking libstdc++ and libgcc statically with GCC
1749 # if supported. But if the user explicitly specified the libraries to use,
1750 # trust that they are doing what they want.
aac9103b
TT		 1751 if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
1752 -a "$have_static_libs" = yes; then
0b21f5d3
EB		 1753 stage1_ldflags="-static-libstdc++ -static-libgcc"
1754 fi])
1755AC_SUBST(stage1_ldflags)
1756
5dc85f7e 1757# Libraries to use for stage2 and later builds.
00020c16 1758AC_ARG_WITH(boot-libs,
33e39b66 1759[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
00020c16
ILT		 1760[if test "$withval" = "no" -o "$withval" = "yes"; then
1761 poststage1_libs=
1762 else
e90e6bd7 1763 poststage1_libs=$withval
00020c16 1764 fi],
5dc85f7e 1765[poststage1_libs=])
00020c16
ILT		 1766AC_SUBST(poststage1_libs)
1767
ed2eaa9f
ILT		 1768# Linker flags to use for stage2 and later builds.
1769AC_ARG_WITH(boot-ldflags,
33e39b66
AS		 1770[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1771 [linker flags for stage2 and later])],
ed2eaa9f
ILT		 1772[if test "$withval" = "no" -o "$withval" = "yes"; then
1773 poststage1_ldflags=
1774 else
1775 poststage1_ldflags=$withval
1776 fi],
1777[poststage1_ldflags=
bec93d73
ILT		 1778 # In stages 2 and 3, default to linking libstdc++ and libgcc
1779 # statically. But if the user explicitly specified the libraries to
1780 # use, trust that they are doing what they want.
1781 if test "$poststage1_libs" = ""; then
ed2eaa9f
ILT		 1782 poststage1_ldflags="-static-libstdc++ -static-libgcc"
1783 fi])
1784AC_SUBST(poststage1_ldflags)
1785
e357a5e0 1786# GCC GRAPHITE dependency isl.
4a9bb2aa 1787# Basic setup is inlined here, actual checks are in config/isl.m4
625afa23 1788
625afa23
RG		 1789AC_ARG_WITH(isl,
1790 [AS_HELP_STRING(
1791 [--with-isl=PATH],
e357a5e0 1792 [Specify prefix directory for the installed isl package.
625afa23
RG		 1793 Equivalent to --with-isl-include=PATH/include
1794 plus --with-isl-lib=PATH/lib])])
1795
eae1a5d4 1796# Treat --without-isl as a request to disable
625afa23 1797# GRAPHITE support and skip all following checks.
eae1a5d4 1798if test "x$with_isl" != "xno"; then
e357a5e0 1799 # Check for isl
625afa23
RG		 1800 dnl Provide configure switches and initialize islinc & isllibs
1801 dnl with user input.
1802 ISL_INIT_FLAGS
e357a5e0 1803 dnl The versions of isl that work for Graphite
e0c0c325 1804 ISL_CHECK_VERSION()
e357a5e0 1805 dnl Only execute fail-action, if isl has been requested.
33ad93b9 1806 ISL_IF_FAILED([
e357a5e0 1807 AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
f8bf9252 1808fi
f8bf9252 1809
e357a5e0 1810# If the isl check failed, disable builds of in-tree variant of isl
625afa23 1811if test "x$with_isl" = xno ||
625afa23 1812 test "x$gcc_cv_isl" = xno; then
4a9bb2aa 1813 noconfigdirs="$noconfigdirs isl"
625afa23 1814 islinc=
eae1a5d4
RG		 1815fi
1816
1817AC_SUBST(isllibs)
625afa23 1818AC_SUBST(islinc)
625afa23 1819
d7f09764
DN		 1820# Check for LTO support.
1821AC_ARG_ENABLE(lto,
33e39b66 1822[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
d7f09764
DN		 1823enable_lto=$enableval,
1824enable_lto=yes; default_enable_lto=yes)
1825
48215350
DK		 1826ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1827 build_lto_plugin=yes
1828],[if test x"$default_enable_lto" = x"yes" ; then
bb79486c 1829 case $target in
deeba76a 1830 *-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
48215350 1831 # On other non-ELF platforms, LTO has yet to be validated.
bb79486c
JH		 1832 *) enable_lto=no ;;
1833 esac
3bec79c5 1834 else
db50fe7d
IS		 1835 # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1836 # It would also be nice to check the binutils support, but we don't
3bec79c5
DK		 1837 # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
1838 # warn during gcc/ subconfigure; unless you're bootstrapping with
1839 # -flto it won't be needed until after installation anyway.
1840 case $target in
9e530bcd 1841 *-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
3bec79c5
DK		 1842 *) if test x"$enable_lto" = x"yes"; then
1843 AC_MSG_ERROR([LTO support is not enabled for this target.])
1844 fi
1845 ;;
1846 esac
1847 fi
1cd0b716 1848 # Among non-ELF, only Windows platforms support the lto-plugin so far.
48215350 1849 # Build it unless LTO was explicitly disabled.
1cd0b716 1850 case $target in
48215350 1851 *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1cd0b716
DK		 1852 *) ;;
1853 esac
48215350 1854])
d7f09764 1855
45b3824d
TS		 1856AC_ARG_ENABLE(linker-plugin-configure-flags,
1857 [AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
1858 [additional flags for configuring linker plugins @<:@none@:>@])],
1859 extra_linker_plugin_configure_flags=$enableval,
1860 extra_linker_plugin_configure_flags=)
1861AC_SUBST(extra_linker_plugin_configure_flags)
1862AC_ARG_ENABLE(linker-plugin-flags,
1863 [AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
1864 [additional flags for configuring and building linker plugins @<:@none@:>@])],
1865 extra_linker_plugin_flags=$enableval,
1866 extra_linker_plugin_flags=)
1867AC_SUBST(extra_linker_plugin_flags)
1868
cdfee50a
NS		 1869# Enable --enable-host-shared.
1870# Checked early to determine whether jit is an 'all' language
1871AC_ARG_ENABLE(host-shared,
1872[AS_HELP_STRING([--enable-host-shared],
1873 [build host code as shared libraries])],
1874[host_shared=$enableval], [host_shared=no])
1875AC_SUBST(host_shared)
f8bf9252 1876
0823efed 1877# By default, C and C++ are the only stage 1 languages.
e1888513 1878stage1_languages=,c,
2805b53a 1879
00020c16 1880# Target libraries that we bootstrap.
ad1e5170 1881bootstrap_target_libs=,target-libgcc,
00020c16 1882
e4c9c075
PB		 1883# Figure out what language subdirectories are present.
1884# Look if the user specified --enable-languages="..."; if not, use
1885# the environment variable $LANGUAGES if defined. $LANGUAGES might
1886# go away some day.
1887# NB: embedded tabs in this IF block -- do not untabify
1888if test -d ${srcdir}/gcc; then
1889 if test x"${enable_languages+set}" != xset; then
1890 if test x"${LANGUAGES+set}" = xset; then
1891 enable_languages="${LANGUAGES}"
6b1786aa 1892 echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
e4c9c075 1893 else
cdfee50a 1894 enable_languages=default
e4c9c075
PB		 1895 fi
1896 else
1897 if test x"${enable_languages}" = x ||
1898 test x"${enable_languages}" = xyes;
1899 then
6b1786aa 1900 echo configure.ac: --enable-languages needs at least one language argument 1>&2
e4c9c075
PB		 1901 exit 1
1902 fi
1903 fi
1904 enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
1905
7f26dfa3
FXC		 1906 # 'f95' is the old name for the 'fortran' language. We issue a warning
1907 # and make the substitution.
1908 case ,${enable_languages}, in
1909 *,f95,*)
6b1786aa 1910 echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
7f26dfa3
FXC		 1911 enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1912 ;;
1913 esac
1914
0823efed
DN		 1915 # If bootstrapping, C++ must be enabled.
1916 case ",$enable_languages,:$enable_bootstrap" in
1917 *,c++,*:*) ;;
1918 *:yes)
ff3ac0f4
ILT		 1919 if test -f ${srcdir}/gcc/cp/config-lang.in; then
1920 enable_languages="${enable_languages},c++"
1921 else
0823efed 1922 AC_MSG_ERROR([bootstrapping requires c++ sources])
ff3ac0f4
ILT		 1923 fi
1924 ;;
1925 esac
1926
e4c9c075
PB		 1927 # First scan to see if an enabled language requires some other language.
1928 # We assume that a given config-lang.in will list all the language
1929 # front ends it requires, even if some are required indirectly.
1930 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1931 case ${lang_frag} in
1932 ..) ;;
1933 # The odd quoting in the next line works around
1934 # an apparent bug in bash 1.12 on linux.
1935 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1936 *)
69ecd18f
ILT		 1937 # From the config-lang.in, get $language, $lang_requires, and
1938 # $lang_requires_boot_languages.
e4c9c075
PB		 1939 language=
1940 lang_requires=
69ecd18f 1941 lang_requires_boot_languages=
d4360477
NS		 1942 # set srcdir during sourcing lang_frag to the gcc dir.
1943 # Sadly overriding srcdir on the . line doesn't work in plain sh as it
1944 # polutes this shell
1945 saved_srcdir=${srcdir}
1946 srcdir=${srcdir}/gcc . ${lang_frag}
1947 srcdir=${saved_srcdir}
69ecd18f 1948 for other in ${lang_requires} ${lang_requires_boot_languages}; do
e4c9c075
PB		 1949 case ,${enable_languages}, in
1950 *,$other,*) ;;
cdfee50a 1951 *,default,*) ;;
e4c9c075
PB		 1952 *,all,*) ;;
1953 *,$language,*)
1954 echo " \`$other' language required by \`$language'; enabling" 1>&2
1955 enable_languages="${enable_languages},${other}"
1956 ;;
1957 esac
1958 done
69ecd18f
ILT		 1959 for other in ${lang_requires_boot_languages} ; do
1960 if test "$other" != "c"; then
1961 case ,${enable_stage1_languages}, in
1962 *,$other,*) ;;
cdfee50a 1963 *,default,*) ;;
69ecd18f
ILT		 1964 *,all,*) ;;
1965 *)
1966 case ,${enable_languages}, in
1967 *,$language,*)
1968 echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1969 enable_stage1_languages="$enable_stage1_languages,${other}"
1970 ;;
1971 esac
1972 ;;
1973 esac
1974 fi
1975 done
e4c9c075
PB		 1976 ;;
1977 esac
1978 done
1979
e1888513 1980 new_enable_languages=,c,
d7f09764
DN		 1981
1982 # If LTO is enabled, add the LTO front end.
d7f09764 1983 if test "$enable_lto" = "yes" ; then
e4c5bd48
RW		 1984 case ,${enable_languages}, in
1985 *,lto,*) ;;
1986 *) enable_languages="${enable_languages},lto" ;;
1987 esac
1cd0b716 1988 if test "${build_lto_plugin}" = "yes" ; then
d7f09764 1989 configdirs="$configdirs lto-plugin"
d7f09764
DN		 1990 fi
1991 fi
d7f09764 1992
426c1eb0
TS		 1993 # If we're building an offloading compiler, add the LTO front end.
1994 if test x"$enable_as_accelerator_for" != x ; then
1995 case ,${enable_languages}, in
1996 *,lto,*) ;;
1997 *) enable_languages="${enable_languages},lto" ;;
1998 esac
1999 fi
2000
cdfee50a 2001 missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
e1888513 2002 potential_languages=,c,
e4c9c075 2003
4da3b0f8
ILT		 2004 enabled_target_libs=
2005 disabled_target_libs=
2006
e4c9c075
PB		 2007 for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
2008 case ${lang_frag} in
2009 ..) ;;
2010 # The odd quoting in the next line works around
2011 # an apparent bug in bash 1.12 on linux.
2012 ${srcdir}/gcc/[[*]]/config-lang.in) ;;
2013 *)
2014 # From the config-lang.in, get $language, $target_libs,
2805b53a 2015 # $lang_dirs, $boot_language, and $build_by_default
e4c9c075
PB		 2016 language=
2017 target_libs=
2018 lang_dirs=
1546bb64 2019 subdir_requires=
e1888513
PB		 2020 boot_language=no
2021 build_by_default=yes
d4360477
NS		 2022 # set srcdir during sourcing. See above about save & restore
2023 saved_srcdir=${srcdir}
2024 srcdir=${srcdir}/gcc . ${lang_frag}
2025 srcdir=${saved_srcdir}
e1888513
PB		 2026 if test x${language} = x; then
2027 echo "${lang_frag} doesn't set \$language." 1>&2
2028 exit 1
2029 fi
2030
78767fd9 2031 if test "$language" = "c++"; then
0823efed 2032 boot_language=yes
00020c16
ILT		 2033 fi
2034
178f875a 2035 add_this_lang=no
cdfee50a
NS		 2036 # C is always enabled, so no need to add it again
2037 if test "$language" != "c"; then
2038 case ,${enable_languages}, in
2039 *,${language},*)
2040 # Language was explicitly selected; include it
d4a10d0a 2041 add_this_lang=yes
cdfee50a
NS		 2042 ;;
2043 *,all,*)
2044 # All languages are enabled
2045 add_this_lang=all
2046 ;;
2047 *,default,*)
2048 # 'default' was selected, select it if it is a default language
178f875a 2049 add_this_lang=${build_by_default}
cdfee50a
NS		 2050 ;;
2051 esac
2052 fi
6de9cd9a 2053
1546bb64 2054 # Disable languages that need other directories if these aren't available.
95695ad3 2055 for i in $subdir_requires; do
b6348cb3 2056 test -f "$srcdir/gcc/$i/config-lang.in" && continue
cdfee50a
NS		 2057 case ${add_this_lang} in
2058 yes)
1546bb64
PB		 2059 # Specifically requested language; tell them.
2060 AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
2061 ;;
cdfee50a
NS		 2062 all)
2063 AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
2064 add_this_lang=unsupported
2065 ;;
1546bb64
PB		 2066 *)
2067 # Silently disable.
e1888513 2068 add_this_lang=unsupported
1546bb64
PB		 2069 ;;
2070 esac
2071 done
2072
e1888513 2073 # Disable Ada if no preexisting GNAT is available.
cdfee50a
NS		 2074 case ${add_this_lang}:${language}:${have_gnat} in
2075 yes:ada:no)
e1888513
PB		 2076 # Specifically requested language; tell them.
2077 AC_MSG_ERROR([GNAT is required to build $language])
2078 ;;
cdfee50a
NS		 2079 all:ada:no)
2080 AC_MSG_WARN([GNAT is required to build $language])
2081 add_this_lang=unsupported
2082 ;;
e1888513
PB		 2083 *:ada:no)
2084 # Silently disable.
2085 add_this_lang=unsupported
2086 ;;
2087 esac
2088
cdfee50a 2089 # Disable jit if -enable-host-shared not specified
c83027f3
NB		 2090 # but not if building for Mingw. All code in Windows
2091 # is position independent code (PIC).
2092 case $target in
2093 *mingw*) ;;
2094 *)
2095 case ${add_this_lang}:${language}:${host_shared} in
2096 yes:jit:no)
2097 # PR jit/64780: explicitly specify --enable-host-shared
cdfee50a
NS		 2098 AC_MSG_ERROR([
2099Enabling language "jit" requires --enable-host-shared.
2100
2101--enable-host-shared typically slows the rest of the compiler down by
2102a few %, so you must explicitly enable it.
2103
2104If you want to build both the jit and the regular compiler, it is often
2105best to do this via two separate configure/builds, in separate
2106directories, to avoid imposing the performance cost of
2107--enable-host-shared on the regular compiler.])
c83027f3
NB		 2108 ;;
2109 all:jit:no)
2110 AC_MSG_WARN([--enable-host-shared required to build $language])
2111 add_this_lang=unsupported
2112 ;;
2113 *:jit:no)
2114 # Silently disable.
2115 add_this_lang=unsupported
2116 ;;
2117 esac
2118 ;;
2119 esac
cdfee50a
NS		 2120
2121 # Disable a language that is unsupported by the target.
2122 case "${add_this_lang}: $unsupported_languages " in
2123 no:*) ;;
2124 unsupported:*) ;;
2125 *:*" $language "*)
2126 AC_MSG_WARN([${language} not supported for this target])
e1888513 2127 add_this_lang=unsupported
4fab7234
HPN		 2128 ;;
2129 esac
2130
6de9cd9a 2131 case $add_this_lang in
e1888513 2132 unsupported)
e4c9c075 2133 # Remove language-dependent dirs.
4da3b0f8
ILT		 2134 disabled_target_libs="$disabled_target_libs $target_libs"
2135 noconfigdirs="$noconfigdirs $lang_dirs"
2805b53a 2136 ;;
e1888513
PB		 2137 no)
2138 # Remove language-dependent dirs; still show language as supported.
4da3b0f8
ILT		 2139 disabled_target_libs="$disabled_target_libs $target_libs"
2140 noconfigdirs="$noconfigdirs $lang_dirs"
e1888513
PB		 2141 potential_languages="${potential_languages}${language},"
2142 ;;
cdfee50a 2143 all|yes)
e1888513
PB		 2144 new_enable_languages="${new_enable_languages}${language},"
2145 potential_languages="${potential_languages}${language},"
2805b53a 2146 missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
4da3b0f8 2147 enabled_target_libs="$enabled_target_libs $target_libs"
ab9dcd0c
RW		 2148 case "${boot_language}:,$enable_stage1_languages," in
2149 yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
340de83f 2150 # Add to (comma-separated) list of stage 1 languages.
ab9dcd0c
RW		 2151 case ",$stage1_languages," in
2152 *,$language,* | ,yes, | ,all,) ;;
2153 *) stage1_languages="${stage1_languages}${language}," ;;
2154 esac
00020c16
ILT		 2155 # We need to bootstrap any supporting libraries.
2156 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
2805b53a
NN		 2157 ;;
2158 esac
2159 ;;
e4c9c075
PB		 2160 esac
2161 ;;
2162 esac
2163 done
2164
4da3b0f8
ILT		 2165 # Add target libraries which are only needed for disabled languages
2166 # to noconfigdirs.
2167 if test -n "$disabled_target_libs"; then
2168 for dir in $disabled_target_libs; do
2169 case " $enabled_target_libs " in
2170 *" ${dir} "*) ;;
2171 *) noconfigdirs="$noconfigdirs $dir" ;;
2172 esac
2173 done
2174 fi
2175
e1888513 2176 AC_ARG_ENABLE(stage1-languages,
33e39b66
AS		 2177 [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
2178 [choose additional languages to build during
2179 stage1. Mostly useful for compiler development])],
e1888513
PB		 2180 [case ,${enable_stage1_languages}, in
2181 ,no,|,,)
2182 # Set it to something that will have no effect in the loop below
2183 enable_stage1_languages=c ;;
2184 ,yes,)
2185 enable_stage1_languages=`echo $new_enable_languages | \
2186 sed -e "s/^,//" -e "s/,$//" ` ;;
2187 *,all,*)
2188 enable_stage1_languages=`echo ,$enable_stage1_languages, | \
2189 sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
2190 esac
2191
2192 # Add "good" languages from enable_stage1_languages to stage1_languages,
2193 # while "bad" languages go in missing_languages. Leave no duplicates.
2194 for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
2195 case $potential_languages in
2196 *,$i,*)
2197 case $stage1_languages in
2198 *,$i,*) ;;
2199 *) stage1_languages="$stage1_languages$i," ;;
2200 esac ;;
2201 *)
2202 case $missing_languages in
2203 *,$i,*) ;;
2204 *) missing_languages="$missing_languages$i," ;;
2205 esac ;;
2206 esac
2207 done])
2208
2209 # Remove leading/trailing commas that were added for simplicity
2210 potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
79b4b7d2 2211 missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
e1888513
PB		 2212 stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
2213 new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
2214
e4c9c075
PB		 2215 if test "x$missing_languages" != x; then
2216 AC_MSG_ERROR([
0cf085e4 2217The following requested languages could not be built: ${missing_languages}
e1888513 2218Supported languages are: ${potential_languages}])
e4c9c075 2219 fi
e4c9c075
PB		 2220 if test "x$new_enable_languages" != "x$enable_languages"; then
2221 echo The following languages will be built: ${new_enable_languages}
e1888513 2222 enable_languages="$new_enable_languages"
e4c9c075 2223 fi
e1888513
PB		 2224
2225 AC_SUBST(stage1_languages)
b2eaac4a 2226 ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
e4c9c075
PB		 2227fi
2228
27079765
AH		 2229# Handle --disable-<component> generically.
2230for dir in $configdirs $build_configdirs $target_configdirs ; do
2231 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
ac9e6043
RW		 2232 varname=`echo $dirname | sed -e s/+/_/g`
2233 if eval test x\${enable_${varname}} "=" xno ; then
27079765
AH		 2234 noconfigdirs="$noconfigdirs $dir"
2235 fi
2236done
2237
43c40f3e
RO		 2238# Check for Boehm's garbage collector
2239AC_ARG_ENABLE(objc-gc,
2240[AS_HELP_STRING([--enable-objc-gc],
2241 [enable use of Boehm's garbage collector with the
114bf3f1
MK		 2242 GNU Objective-C runtime])])
2243AC_ARG_WITH([target-bdw-gc],
2244[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
2245 [specify prefix directory for installed bdw-gc package.
2246 Equivalent to --with-target-bdw-gc-include=PATH/include
2247 plus --with-target-bdw-gc-lib=PATH/lib])])
2248AC_ARG_WITH([target-bdw-gc-include],
2249[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
2250 [specify directories for installed bdw-gc include files])])
2251AC_ARG_WITH([target-bdw-gc-lib],
2252[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
2253 [specify directories for installed bdw-gc library])])
2254
2255case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
2256 AC_MSG_CHECKING([for bdw garbage collector])
2257 if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
825fba52
MK		 2258 dnl no bdw-gw options, assume default locations
2259 AC_MSG_RESULT([using bdw-gc in default locations])
114bf3f1
MK		 2260 else
2261 dnl bdw-gw options, first error checking, complete checking in libobjc
2262 if 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-lib but --with-target-bdw-gc-include missing])
2264 elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
2265 AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
2266 else
2267 AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
2268 fi
2269 fi
43c40f3e
RO		 2270esac
2271
5e9d6aa4 2272# Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
99776ebd 2273case ,${enable_languages}, in
1007a55c 2274 *,c++,*)
5e9d6aa4 2275 # Disable libitm, libsanitizer if we're not building libstdc++
1007a55c
JW		 2276 case "${noconfigdirs}" in
2277 *target-libstdc++-v3*)
5e9d6aa4 2278 noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
1007a55c
JW		 2279 ;;
2280 *) ;;
2281 esac
2282 ;;
99776ebd 2283 *)
5e9d6aa4 2284 noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
99776ebd
RH		 2285 ;;
2286esac
7cd0cf9c 2287
9d069a4f
PB		 2288# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
2289# $build_configdirs and $target_configdirs.
e4c9c075
PB		 2290# If we have the source for $noconfigdirs entries, add them to $notsupp.
2291
2292notsupp=""
2293for dir in . $skipdirs $noconfigdirs ; do
9d069a4f 2294 dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
e4c9c075
PB		 2295 if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2296 configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
2297 if test -r $srcdir/$dirname/configure ; then
2298 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2299 true
2300 else
2301 notsupp="$notsupp $dir"
2302 fi
2303 fi
2304 fi
9d069a4f
PB		 2305 if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2306 build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
2307 if test -r $srcdir/$dirname/configure ; then
2308 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2309 true
2310 else
2311 notsupp="$notsupp $dir"
2312 fi
2313 fi
2314 fi
e4c9c075
PB		 2315 if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2316 target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
2317 if test -r $srcdir/$dirname/configure ; then
2318 if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2319 true
2320 else
2321 notsupp="$notsupp $dir"
2322 fi
2323 fi
2324 fi
2325done
2326
e4c9c075
PB		 2327# Quietly strip out all directories which aren't configurable in this tree.
2328# This relies on all configurable subdirectories being autoconfiscated, which
2329# is now the case.
23f6b2f9
PB		 2330build_configdirs_all="$build_configdirs"
2331build_configdirs=
2332for i in ${build_configdirs_all} ; do
2333 j=`echo $i | sed -e s/build-//g`
2334 if test -f ${srcdir}/$j/configure ; then
2335 build_configdirs="${build_configdirs} $i"
2336 fi
2337done
2338
e4c9c075
PB		 2339configdirs_all="$configdirs"
2340configdirs=
2341for i in ${configdirs_all} ; do
2342 if test -f ${srcdir}/$i/configure ; then
2343 configdirs="${configdirs} $i"
2344 fi
2345done
23f6b2f9 2346
e4c9c075
PB		 2347target_configdirs_all="$target_configdirs"
2348target_configdirs=
2349for i in ${target_configdirs_all} ; do
2350 j=`echo $i | sed -e s/target-//g`
2351 if test -f ${srcdir}/$j/configure ; then
2352 target_configdirs="${target_configdirs} $i"
2353 fi
2354done
2355
45b3824d
TS		 2356# libiberty-linker-plugin is special: it doesn't have its own source directory,
2357# so we have to add it after the preceding checks.
2358if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
2359then
2360 case " $configdirs " in
2361 *" libiberty "*)
2362 # If we can build libiberty, we can also build libiberty-linker-plugin.
2363 configdirs="$configdirs libiberty-linker-plugin"
2364 extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
2365 --with-libiberty=../libiberty-linker-plugin";;
2366 *)
2367 AC_MSG_ERROR([libiberty missing]);;
2368 esac
2369fi
2370
fca38047
TS		 2371# Sometimes we have special requirements for the host libiberty.
2372extra_host_libiberty_configure_flags=
1c01ebf6 2373extra_host_zlib_configure_flags=
fca38047
TS		 2374case " $configdirs " in
2375 *" lto-plugin "* | *" libcc1 "*)
2376 # When these are to be built as shared libraries, the same applies to
2377 # libiberty.
2378 extra_host_libiberty_configure_flags=--enable-shared
2379 ;;
1c01ebf6
L		 2380 *" bfd "*)
2381 # When bfd is to be built as a shared library, the same applies to
2382 # zlib.
2383 if test "$enable_shared" = "yes"; then
2384 extra_host_zlib_configure_flags=--enable-host-shared
2385 fi
2386 ;;
fca38047
TS		 2387esac
2388AC_SUBST(extra_host_libiberty_configure_flags)
1c01ebf6 2389AC_SUBST(extra_host_zlib_configure_flags)
fca38047 2390
e4c9c075
PB		 2391# Produce a warning message for the subdirs we can't configure.
2392# This isn't especially interesting in the Cygnus tree, but in the individual
2393# FSF releases, it's important to let people know when their machine isn't
2394# supported by the one or two programs in a package.
2395
2396if test -n "${notsupp}" && test -z "${norecursion}" ; then
2397 # If $appdirs is non-empty, at least one of those directories must still
2398 # be configured, or we error out. (E.g., if the gas release supports a
2399 # specified target in some subdirs but not the gas subdir, we shouldn't
2400 # pretend that all is well.)
2401 if test -n "$appdirs" ; then
2402 for dir in $appdirs ; do
2403 if test -r $dir/Makefile.in ; then
2404 if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2405 appdirs=""
2406 break
2407 fi
23f6b2f9 2408 if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
e4c9c075
PB		 2409 appdirs=""
2410 break
2411 fi
2412 fi
2413 done
2414 if test -n "$appdirs" ; then
2415 echo "*** This configuration is not supported by this package." 1>&2
2416 exit 1
2417 fi
2418 fi
2419 # Okay, some application will build, or we don't care to check. Still
2420 # notify of subdirs not getting built.
2421 echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2422 echo " ${notsupp}" 1>&2
2423 echo " (Any other directories should still work fine.)" 1>&2
2424fi
2425
2426case "$host" in
2427 *msdosdjgpp*)
2428 enable_gdbtk=no ;;
2429esac
2430
c3a86da9
DJ		 2431# To find our prefix, in gcc_cv_tool_prefix.
2432ACX_TOOL_DIRS
2433
e4c9c075
PB		 2434copy_dirs=
2435
526635cb 2436AC_ARG_WITH([build-sysroot],
33e39b66
AS		 2437 [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2438 [use sysroot as the system root during the build])],
526635cb
MM		 2439 [if test x"$withval" != x ; then
2440 SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2441 fi],
2442 [SYSROOT_CFLAGS_FOR_TARGET=])
2443AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2444
c8aea42c 2445AC_ARG_WITH([debug-prefix-map],
33e39b66
AS		 2446 [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2447 [map A to B, C to D ... in debug information])],
c8aea42c
PB		 2448 [if test x"$withval" != x; then
2449 DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2450 for debug_map in $withval; do
2451 DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2452 done
2453 fi],
2454 [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2455AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2456
1c8bd6a3
PB		 2457# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2458# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
2459# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2460# We want to ensure that TARGET libraries (which we know are built with
2461# gcc) are built with "-O2 -g", so include those options when setting
2462# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2463if test "x$CFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2464 if test "x${is_cross_compiler}" = xyes; then
2465 CFLAGS_FOR_TARGET="-g -O2"
2466 else
2467 CFLAGS_FOR_TARGET=$CFLAGS
2468 case " $CFLAGS " in
2469 *" -O2 "*) ;;
2470 *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
2471 esac
2472 case " $CFLAGS " in
2473 *" -g "* | *" -g3 "*) ;;
2474 *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
2475 esac
2476 fi
1c8bd6a3
PB		 2477fi
2478AC_SUBST(CFLAGS_FOR_TARGET)
2479
2480if test "x$CXXFLAGS_FOR_TARGET" = x; then
fc30054e
AH		 2481 if test "x${is_cross_compiler}" = xyes; then
2482 CXXFLAGS_FOR_TARGET="-g -O2"
2483 else
2484 CXXFLAGS_FOR_TARGET=$CXXFLAGS
2485 case " $CXXFLAGS " in
2486 *" -O2 "*) ;;
2487 *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
2488 esac
2489 case " $CXXFLAGS " in
2490 *" -g "* | *" -g3 "*) ;;
2491 *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
2492 esac
2493 fi
1c8bd6a3
PB		 2494fi
2495AC_SUBST(CXXFLAGS_FOR_TARGET)
2496
6f57bdf6
DK		 2497AC_SUBST(LDFLAGS_FOR_TARGET)
2498
e4c9c075
PB		 2499# Handle --with-headers=XXX. If the value is not "yes", the contents of
2500# the named directory are copied to $(tooldir)/sys-include.
2501if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2502 if test x${is_cross_compiler} = xno ; then
2503 echo 1>&2 '***' --with-headers is only supported when cross compiling
2504 exit 1
2505 fi
2506 if test x"${with_headers}" != xyes ; then
c3a86da9 2507 x=${gcc_cv_tool_prefix}
1c710c3c 2508 copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
e4c9c075
PB		 2509 fi
2510fi
2511
2512# Handle --with-libs=XXX. If the value is not "yes", the contents of
2513# the name directories are copied to $(tooldir)/lib. Multiple directories
2514# are permitted.
2515if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2516 if test x${is_cross_compiler} = xno ; then
2517 echo 1>&2 '***' --with-libs is only supported when cross compiling
2518 exit 1
2519 fi
2520 if test x"${with_libs}" != xyes ; then
2521 # Copy the libraries in reverse order, so that files in the first named
2522 # library override files in subsequent libraries.
c3a86da9 2523 x=${gcc_cv_tool_prefix}
e4c9c075 2524 for l in ${with_libs}; do
1c710c3c 2525 copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
e4c9c075
PB		 2526 done
2527 fi
2528fi
2529
d7f09764 2530# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
e8b05380
PB		 2531#
2532# This is done by determining whether or not the appropriate directory
2533# is available, and by checking whether or not specific configurations
2534# have requested that this magic not happen.
2535#
2536# The command line options always override the explicit settings in
6b1786aa 2537# configure.ac, and the settings in configure.ac override this magic.
e8b05380
PB		 2538#
2539# If the default for a toolchain is to use GNU as and ld, and you don't
2540# want to do that, then you should use the --without-gnu-as and
d7f09764
DN		 2541# --without-gnu-ld options for the configure script. Similarly, if
2542# the default is to use the included zlib and you don't want to do that,
2543# you should use the --with-system-zlib option for the configure script.
e8b05380
PB		 2544
2545if test x${use_gnu_as} = x &&
2546 echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2547 with_gnu_as=yes
2548 extra_host_args="$extra_host_args --with-gnu-as"
2549fi
2550
2551if test x${use_gnu_ld} = x &&
5afab7ad 2552 echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
e8b05380
PB		 2553 with_gnu_ld=yes
2554 extra_host_args="$extra_host_args --with-gnu-ld"
2555fi
2556
d7f09764
DN		 2557if test x${use_included_zlib} = x &&
2558 echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2559 :
2560else
2561 with_system_zlib=yes
2562 extra_host_args="$extra_host_args --with-system-zlib"
2563fi
2564
e8b05380
PB		 2565# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2566# can detect this case.
2567
2568if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2569 with_newlib=yes
2570 extra_host_args="$extra_host_args --with-newlib"
2571fi
2572
e4c9c075
PB		 2573# Handle ${copy_dirs}
2574set fnord ${copy_dirs}
2575shift
2576while test $# != 0 ; do
2577 if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2578 :
2579 else
2580 echo Copying $1 to $2
2581
2582 # Use the install script to create the directory and all required
2583 # parent directories.
2584 if test -d $2 ; then
2585 :
2586 else
2587 echo >config.temp
2588 ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2589 fi
2590
2591 # Copy the directory, assuming we have tar.
2592 # FIXME: Should we use B in the second tar? Not all systems support it.
2593 (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2594
2595 # It is the responsibility of the user to correctly adjust all
2596 # symlinks. If somebody can figure out how to handle them correctly
2597 # here, feel free to add the code.
2598
2599 echo $1 > $2/COPIED
2600 fi
2601 shift; shift
2602done
2603
e8b05380
PB		 2604# Determine a target-dependent exec_prefix that the installed
2605# gcc will search in. Keep this list sorted by triplet, with
2606# the *-*-osname triplets last.
2607md_exec_prefix=
2608case "${target}" in
30b74385 2609 i[[34567]]86-pc-msdosdjgpp*)
e8b05380
PB		 2610 md_exec_prefix=/dev/env/DJDIR/bin
2611 ;;
e8b05380 2612 *-*-hpux* | \
e8b05380 2613 *-*-nto-qnx* | \
6de66370 2614 *-*-solaris2*)
e8b05380
PB		 2615 md_exec_prefix=/usr/ccs/bin
2616 ;;
2617esac
2618
4977bab6
ZW		 2619extra_arflags_for_target=
2620extra_nmflags_for_target=
2a726918 2621extra_ranlibflags_for_target=
671aa708 2622target_makefile_frag=/dev/null
55380b08 2623case "${target}" in
58e24147
AM		 2624 spu-*-*)
2625 target_makefile_frag="config/mt-spu"
2626 ;;
74ae587e 2627 mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
4bf6c438
RS		 2628 target_makefile_frag="config/mt-sde"
2629 ;;
1ec3b87b
RS		 2630 mipsisa*-*-elfoabi*)
2631 target_makefile_frag="config/mt-mips-elfoabi"
2632 ;;
08d0963a
RS		 2633 mips*-*-*linux* | mips*-*-gnu*)
2634 target_makefile_frag="config/mt-mips-gnu"
2635 ;;
707f1839
SL		 2636 nios2-*-elf*)
2637 target_makefile_frag="config/mt-nios2-elf"
2638 ;;
76052545
EB		 2639 *-*-linux-android*)
2640 target_makefile_frag="config/mt-android"
2641 ;;
416ac4d4 2642 *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
98a5bb3b 2643 target_makefile_frag="config/mt-gnu"
55380b08 2644 ;;
671aa708 2645 *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
4977bab6
ZW		 2646 # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2647 # commands to handle both 32-bit and 64-bit objects. These flags are
2648 # harmless if we're using GNU nm or ar.
2649 extra_arflags_for_target=" -X32_64"
2650 extra_nmflags_for_target=" -B -X32_64"
55380b08 2651 ;;
c3b7d169
NN		 2652esac
2653
671aa708 2654alphaieee_frag=/dev/null
c3b7d169
NN		 2655case $target in
2656 alpha*-*-*)
2657 # This just makes sure to use the -mieee option to build target libs.
2658 # This should probably be set individually by each library.
2659 alphaieee_frag="config/mt-alphaieee"
55380b08
NN		 2660 ;;
2661esac
701afd4d 2662
55380b08
NN		 2663# If --enable-target-optspace always use -Os instead of -O2 to build
2664# the target libraries, similarly if it is not specified, use -Os
2665# on selected platforms.
671aa708 2666ospace_frag=/dev/null
55380b08
NN		 2667case "${enable_target_optspace}:${target}" in
2668 yes:*)
c3b7d169 2669 ospace_frag="config/mt-ospace"
55380b08
NN		 2670 ;;
2671 :d30v-*)
c3b7d169 2672 ospace_frag="config/mt-d30v"
55380b08 2673 ;;
d9063947 2674 :m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
c3b7d169 2675 ospace_frag="config/mt-ospace"
55380b08
NN		 2676 ;;
2677 no:* | :*)
2678 ;;
2679 *)
2680 echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2681 ;;
2682esac
6599da04 2683
671aa708
NN		 2684# Some systems (e.g., one of the i386-aix systems the gas testers are
2685# using) don't handle "\$" correctly, so don't use it here.
1c710c3c 2686tooldir='${exec_prefix}'/${target_noncanonical}
671aa708
NN		 2687build_tooldir=${tooldir}
2688
671aa708
NN		 2689# Create a .gdbinit file which runs the one in srcdir
2690# and tells GDB to look there for source files.
2691
2692if test -r ${srcdir}/.gdbinit ; then
2693 case ${srcdir} in
2694 .) ;;
2695 *) cat > ./.gdbinit <<EOF
2696# ${NO_EDIT}
2697dir ${srcdir}
2698dir .
2699source ${srcdir}/.gdbinit
2700EOF
2701 ;;
2702 esac
2703fi
2704
6599da04
JM		 2705# Make sure that the compiler is able to generate an executable. If it
2706# can't, we are probably in trouble. We don't care whether we can run the
2707# executable--we might be using a cross compiler--we only care whether it
2708# can be created. At this point the main configure script has set CC.
aeaa0f2f 2709we_are_ok=no
6599da04
JM		 2710echo "int main () { return 0; }" > conftest.c
2711${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
aeaa0f2f
NN		 2712if test $? = 0 ; then
2713 if test -s conftest || test -s conftest.exe ; then
2714 we_are_ok=yes
2715 fi
2716fi
2717case $we_are_ok in
2718 no)
2719 echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2720 echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2721 rm -f conftest*
2722 exit 1
2723 ;;
2724esac
6599da04
JM		 2725rm -f conftest*
2726
d89f0ad6 2727# Decide which environment variable is used to find dynamic libraries.
fe3d5b7f
NN		 2728case "${host}" in
2729 *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
111eeb6e 2730 *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
d89f0ad6 2731 *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
fe3d5b7f
NN		 2732 *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2733esac
fe3d5b7f 2734
d89f0ad6
AL		 2735# On systems where the dynamic library environment variable is PATH,
2736# gcc/ will put dynamic libraries into a subdirectory to avoid adding
2737# built executables to PATH.
2738if test "$RPATH_ENVVAR" = PATH; then
2739 GCC_SHLIB_SUBDIR=/shlib
2740else
2741 GCC_SHLIB_SUBDIR=
2742fi
2743
beeda1d9
JJ		 2744# Adjust the toplevel makefile according to whether bootstrap was selected.
2745case $enable_bootstrap in
2746 yes)
2747 bootstrap_suffix=bootstrap
2748 BUILD_CONFIG=bootstrap-debug
2749 ;;
2750 no)
2751 bootstrap_suffix=no-bootstrap
2752 BUILD_CONFIG=
2753 ;;
2754esac
2755
2756AC_MSG_CHECKING(for default BUILD_CONFIG)
2757
2758AC_ARG_WITH([build-config],
2759 [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2760 [use config/NAME.mk build configuration])],
2761 [case $with_build_config in
2762 yes) with_build_config= ;;
2763 no) with_build_config= BUILD_CONFIG= ;;
2764 esac])
2765
2766if test "x${with_build_config}" != x; then
2767 BUILD_CONFIG=$with_build_config
2768else
2769 case $BUILD_CONFIG in
2770 bootstrap-debug)
2771 if echo "int f (void) { return 0; }" > conftest.c &&
2772 ${CC} -c conftest.c &&
2773 mv conftest.o conftest.o.g0 &&
2774 ${CC} -c -g conftest.c &&
2775 mv conftest.o conftest.o.g &&
2776 ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2777 :
2778 else
2779 BUILD_CONFIG=
2780 fi
2781 rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2782 ;;
2783 esac
2784fi
2785AC_MSG_RESULT($BUILD_CONFIG)
2786AC_SUBST(BUILD_CONFIG)
2787
2788# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
2789AC_MSG_CHECKING([for --enable-vtable-verify])
2790AC_ARG_ENABLE(vtable-verify,
318a4e6d
MF		 2791[AS_HELP_STRING([--enable-vtable-verify],
2792 [Enable vtable verification feature])],
beeda1d9
JJ		 2793[case "$enableval" in
2794 yes) enable_vtable_verify=yes ;;
2795 no) enable_vtable_verify=no ;;
2796 *) enable_vtable_verify=no;;
2797 esac],
2798[enable_vtable_verify=no])
2799AC_MSG_RESULT($enable_vtable_verify)
2800
4977bab6
ZW		 2801# Record target_configdirs and the configure arguments for target and
2802# build configuration in Makefile.
2803target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
23f6b2f9 2804build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
9e1c8fc1 2805bootstrap_fixincludes=no
4977bab6 2806
ad1e5170
JR		 2807# If we are building libgomp, bootstrap it.
2808if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2809 bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2810fi
2811
beeda1d9
JJ		 2812# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
2813# or bootstrap-ubsan, bootstrap it.
2814if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
2815 case "$BUILD_CONFIG" in
2816 *bootstrap-asan* | *bootstrap-ubsan* )
2817 bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
9e1c8fc1 2818 bootstrap_fixincludes=yes
beeda1d9
JJ		 2819 ;;
2820 esac
ac8701fe
L		 2821fi
2822
beeda1d9
JJ		 2823# If we are building libvtv and --enable-vtable-verify, bootstrap it.
2824if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
2825 test "$enable_vtable_verify" != no; then
2077db1b
CT		 2826 bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
2827fi
2828
4977bab6
ZW		 2829# Determine whether gdb needs tk/tcl or not.
2830# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2831# and in that case we want gdb to be built without tk. Ugh!
2832# In fact I believe gdb is the *only* package directly dependent on tk,
2833# so we should be able to put the 'maybe's in unconditionally and
2834# leave out the maybe dependencies when enable_gdbtk is false. I'm not
2835# 100% sure that that's safe though.
e914a571 2836
b4f96efe 2837gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
4977bab6
ZW		 2838case "$enable_gdbtk" in
2839 no)
2840 GDB_TK="" ;;
e914a571
AC		 2841 yes)
2842 GDB_TK="${gdb_tk}" ;;
4977bab6 2843 *)
e914a571
AC		 2844 # Only add the dependency on gdbtk when GDBtk is part of the gdb
2845 # distro. Eventually someone will fix this and move Insight, nee
2846 # gdbtk to a separate directory.
2847 if test -d ${srcdir}/gdb/gdbtk ; then
2848 GDB_TK="${gdb_tk}"
2849 else
2850 GDB_TK=""
2851 fi
2852 ;;
4977bab6 2853esac
ef9db8d5
DJ		 2854CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2855INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
4977bab6 2856
f9d09df0
TT		 2857# gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
2858# else does, only include them if one of these is built. The Makefile
2859# provides the ordering, so it's enough here to add to the list.
2860case " ${configdirs} " in
2861 *\ gdb\ *)
2862 configdirs="${configdirs} gnulib gdbsupport"
2863 ;;
2864 *\ gdbserver\ *)
2865 configdirs="${configdirs} gnulib gdbsupport"
2866 ;;
2867esac
98e5be21 2868
60975492 2869# Strip out unwanted targets.
8b87bb96
NN		 2870
2871# While at that, we remove Makefiles if we were started for recursive
2872# configuration, so that the top-level Makefile reconfigures them,
2873# like we used to do when configure itself was recursive.
8b87bb96 2874
3e54529c
RW		 2875# Loop over modules. We used to use the "$extrasub" feature from Autoconf
2876# but now we're fixing up the Makefile ourselves with the additional
2877# commands passed to AC_CONFIG_FILES. Use separate variables
2878# extrasub-{build,host,target} not because there is any reason to split
2879# the substitutions up that way, but only to remain below the limit of
2880# 99 commands in a script, for HP-UX sed.
da34ca3f
AO		 2881
2882# Do not nest @if/@endif or @unless/@endunless pairs, because
2883# configure will not warn you at all.
8b87bb96 2884
79cd2b23
RW		 2885case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2886 yes:yes:*\ gold\ *:*,c++,*) ;;
2887 yes:yes:*\ gold\ *:*)
2888 AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2889 ;;
2890esac
2891
3e54529c 2892extrasub_build=
23f6b2f9 2893for module in ${build_configdirs} ; do
8b87bb96
NN		 2894 if test -z "${no_recursion}" \
2895 && test -f ${build_subdir}/${module}/Makefile; then
2896 echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2897 rm -f ${build_subdir}/${module}/Makefile
2898 fi
3e54529c 2899 extrasub_build="$extrasub_build
60975492 2900/^@if build-$module\$/d
5607edfd 2901/^@endif build-$module\$/d
da34ca3f 2902/^@unless build-$module\$/,/^@endunless build-$module\$/d
5607edfd 2903/^@if build-$module-$bootstrap_suffix\$/d
da34ca3f
AO		 2904/^@endif build-$module-$bootstrap_suffix\$/d
2905/^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
8b87bb96 2906done
3e54529c 2907extrasub_host=
8b87bb96 2908for module in ${configdirs} ; do
a6fbc1e2 2909 if test -z "${no_recursion}"; then
f063a9ed 2910 for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
a6fbc1e2
AS		 2911 if test -f ${file}; then
2912 echo 1>&2 "*** removing ${file} to force reconfigure"
2913 rm -f ${file}
2914 fi
2915 done
8b87bb96 2916 fi
9e1c8fc1
JJ		 2917 case ${module},${bootstrap_fixincludes} in
2918 fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
2919 *) host_bootstrap_suffix=$bootstrap_suffix ;;
2920 esac
3e54529c 2921 extrasub_host="$extrasub_host
60975492 2922/^@if $module\$/d
5607edfd 2923/^@endif $module\$/d
da34ca3f 2924/^@unless $module\$/,/^@endunless $module\$/d
9e1c8fc1 2925/^@if $module-$host_bootstrap_suffix\$/d
da34ca3f
AO		 2926/^@endif $module-$host_bootstrap_suffix\$/d
2927/^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
8b87bb96 2928done
3e54529c 2929extrasub_target=
8b87bb96
NN		 2930for module in ${target_configdirs} ; do
2931 if test -z "${no_recursion}" \
2932 && test -f ${target_subdir}/${module}/Makefile; then
2933 echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2934 rm -f ${target_subdir}/${module}/Makefile
2935 fi
00020c16
ILT		 2936
2937 # We only bootstrap target libraries listed in bootstrap_target_libs.
2938 case $bootstrap_target_libs in
2939 *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2940 *) target_bootstrap_suffix=no-bootstrap ;;
2941 esac
2942
3e54529c 2943 extrasub_target="$extrasub_target
60975492 2944/^@if target-$module\$/d
5607edfd 2945/^@endif target-$module\$/d
da34ca3f 2946/^@unless target-$module\$/,/^@endunless target-$module\$/d
00020c16 2947/^@if target-$module-$target_bootstrap_suffix\$/d
da34ca3f
AO		 2948/^@endif target-$module-$target_bootstrap_suffix\$/d
2949/^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
4977bab6 2950done
f516a7da 2951
3e54529c
RW		 2952# Do the final fixup along with target modules.
2953extrasub_target="$extrasub_target
da34ca3f
AO		 2954/^@if /,/^@endif /d
2955/^@unless /d
2956/^@endunless /d"
4977bab6
ZW		 2957
2958# Create the serialization dependencies. This uses a temporary file.
2959
ade82b16 2960AC_ARG_ENABLE([serial-configure],
33e39b66
AS		 2961[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2962 [force sequential configuration of
2963 sub-packages for the host, target or build
2964 machine, or all sub-packages])])
bf1d3e81
NN		 2965
2966case ${enable_serial_configure} in
2967 yes)
2968 enable_serial_build_configure=yes
2969 enable_serial_host_configure=yes
2970 enable_serial_target_configure=yes
2971 ;;
2972esac
ade82b16 2973
4977bab6
ZW		 2974# These force 'configure's to be done one at a time, to avoid problems
2975# with contention over a shared config.cache.
2976rm -f serdep.tmp
ade82b16 2977echo '# serdep.tmp' > serdep.tmp
4977bab6 2978olditem=
bf1d3e81 2979test "x${enable_serial_build_configure}" = xyes &&
4977bab6
ZW		 2980for item in ${build_configdirs} ; do
2981 case ${olditem} in
2982 "") ;;
ade82b16 2983 *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2984 esac
2985 olditem=${item}
2986done
2987olditem=
bf1d3e81 2988test "x${enable_serial_host_configure}" = xyes &&
4977bab6
ZW		 2989for item in ${configdirs} ; do
2990 case ${olditem} in
2991 "") ;;
ade82b16 2992 *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 2993 esac
2994 olditem=${item}
2995done
2996olditem=
bf1d3e81 2997test "x${enable_serial_target_configure}" = xyes &&
4977bab6
ZW		 2998for item in ${target_configdirs} ; do
2999 case ${olditem} in
3000 "") ;;
ade82b16 3001 *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
4977bab6
ZW		 3002 esac
3003 olditem=${item}
3004done
671aa708
NN		 3005serialization_dependencies=serdep.tmp
3006AC_SUBST_FILE(serialization_dependencies)
fe3d5b7f 3007
ade82b16 3008# Base args. Strip norecursion, cache-file, srcdir, host, build,
1c710c3c 3009# target, nonopt, and variable assignments. These are the ones we
f1a036e4
NC		 3010# might not want to pass down to subconfigures. The exception being
3011# --cache-file=/dev/null, which is used to turn off the use of cache
3012# files altogether, and which should be passed on to subconfigures.
3013# Also strip program-prefix, program-suffix, and program-transform-name,
3014# so that we can pass down a consistent program-transform-name.
1c710c3c 3015baseargs=
29a63921 3016tbaseargs=
1c710c3c
DJ		 3017keep_next=no
3018skip_next=no
3019eval "set -- $ac_configure_args"
44bfc3ac
DJ		 3020for ac_arg
3021do
1c710c3c
DJ		 3022 if test X"$skip_next" = X"yes"; then
3023 skip_next=no
3024 continue
3025 fi
3026 if test X"$keep_next" = X"yes"; then
3027 case $ac_arg in
3028 *\'*)
3029 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3030 esac
3031 baseargs="$baseargs '$ac_arg'"
29a63921 3032 tbaseargs="$tbaseargs '$ac_arg'"
1c710c3c
DJ		 3033 keep_next=no
3034 continue
3035 fi
3036
3037 # Handle separated arguments. Based on the logic generated by
3038 # autoconf 2.59.
3039 case $ac_arg in
3040 *=* | --config-cache | -C | -disable-* | --disable-* \
3041 | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
3042 | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
3043 | -with-* | --with-* | -without-* | --without-* | --x)
3044 separate_arg=no
3045 ;;
3046 -*)
3047 separate_arg=yes
3048 ;;
3049 *)
3050 separate_arg=no
3051 ;;
3052 esac
3053
29a63921
AO		 3054 skip_targ=no
3055 case $ac_arg in
3056changequote(,)
3057 --with-* | --without-*)
3058 libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
3059
3060 case $libopt in
3061 *[-_]include)
3062 lib=`echo "$libopt" | sed 's,[-_]include$,,'`
3063 ;;
3064 *[-_]lib)
3065 lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
3066 ;;
3067 *)
3068 lib=$libopt
3069 ;;
3070 esac
3071changequote([,])
3072
3073 case $lib in
4a9bb2aa 3074 mpc | mpfr | gmp | isl)
29a63921
AO		 3075 # If we're processing --with-$lib, --with-$lib-include or
3076 # --with-$lib-lib, for one of the libs above, and target is
3077 # different from host, don't pass the current argument to any
3078 # target library's configure.
3079 if test x$is_cross_compiler = xyes; then
3080 skip_targ=yes
3081 fi
3082 ;;
3083 esac
3084 ;;
3085 esac
3086
1c710c3c 3087 case "$ac_arg" in
f1a036e4
NC		 3088 --cache-file=/dev/null | \
3089 -cache-file=/dev/null )
3090 # Handled here to avoid the test to skip args below.
3091 baseargs="$baseargs '$ac_arg'"
29a63921 3092 tbaseargs="$tbaseargs '$ac_arg'"
f1a036e4
NC		 3093 # Assert: $separate_arg should always be no.
3094 keep_next=$separate_arg
3095 ;;
1c710c3c
DJ		 3096 --no*)
3097 continue
3098 ;;
3099 --c* | \
3100 --sr* | \
3101 --ho* | \
3102 --bu* | \
3103 --t* | \
3104 --program-* | \
3105 -cache_file* | \
3106 -srcdir* | \
3107 -host* | \
3108 -build* | \
3109 -target* | \
3110 -program-prefix* | \
3111 -program-suffix* | \
3112 -program-transform-name* )
3113 skip_next=$separate_arg
3114 continue
3115 ;;
3116 -*)
3117 # An option. Add it.
3118 case $ac_arg in
3119 *\'*)
3120 ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
3121 esac
3122 baseargs="$baseargs '$ac_arg'"
29a63921
AO		 3123 if test X"$skip_targ" = Xno; then
3124 tbaseargs="$tbaseargs '$ac_arg'"
3125 fi
1c710c3c
DJ		 3126 keep_next=$separate_arg
3127 ;;
3128 *)
3129 # Either a variable assignment, or a nonopt (triplet). Don't
3130 # pass it down; let the Makefile handle this.
3131 continue
3132 ;;
3133 esac
3134done
3135# Remove the initial space we just introduced and, as these will be
3136# expanded by make, quote '$'.
3137baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
6599da04 3138
43bb47c2
DJ		 3139# Add in --program-transform-name, after --program-prefix and
3140# --program-suffix have been applied to it. Autoconf has already
3141# doubled dollar signs and backslashes in program_transform_name; we want
3142# the backslashes un-doubled, and then the entire thing wrapped in single
3143# quotes, because this will be expanded first by make and then by the shell.
3144# Also, because we want to override the logic in subdir configure scripts to
3145# choose program_transform_name, replace any s,x,x, with s,y,y,.
3146sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
3147${program_transform_name}
3148EOF_SED
3149gcc_transform_name=`cat conftestsed.out`
3150rm -f conftestsed.out
3151baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
29a63921 3152tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
d9acb717
RW		 3153if test "$silent" = yes; then
3154 baseargs="$baseargs --silent"
29a63921 3155 tbaseargs="$tbaseargs --silent"
d9acb717 3156fi
0115d4a3 3157baseargs="$baseargs --disable-option-checking"
29a63921 3158tbaseargs="$tbaseargs --disable-option-checking"
43bb47c2 3159
ffedf511
RW		 3160# Record and document user additions to sub configure arguments.
3161AC_ARG_VAR([build_configargs],
3162 [additional configure arguments for build directories])
3163AC_ARG_VAR([host_configargs],
3164 [additional configure arguments for host directories])
3165AC_ARG_VAR([target_configargs],
3166 [additional configure arguments for target directories])
3167
e490616e
ZW		 3168# For the build-side libraries, we just need to pretend we're native,
3169# and not use the same cache file. Multilibs are neither needed nor
3d96b0d0
HPN		 3170# desired. We can't even use the same cache file for all build-side
3171# libraries, as they're compiled differently; some with C, some with
3172# C++ or with different feature-enabling options.
3173build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
e254d6b5 3174
4977bab6
ZW		 3175# For host modules, accept cache file option, or specification as blank.
3176case "${cache_file}" in
3177"") # empty
3178 cache_file_option="" ;;
671aa708 3179/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
4977bab6
ZW		 3180 cache_file_option="--cache-file=${cache_file}" ;;
3181*) # relative path
3182 cache_file_option="--cache-file=../${cache_file}" ;;
3183esac
3184
09438bde
NN		 3185# Host dirs don't like to share a cache file either, horribly enough.
3186# This seems to be due to autoconf 2.5x stupidity.
ffedf511 3187host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
4977bab6 3188
29a63921 3189target_configargs="$target_configargs ${tbaseargs}"
e490616e 3190
6599da04
JM		 3191# Passing a --with-cross-host argument lets the target libraries know
3192# whether they are being built with a cross-compiler or being built
3193# native. However, it would be better to use other mechanisms to make the
3194# sorts of decisions they want to make on this basis. Please consider
3195# this option to be deprecated. FIXME.
aeaa0f2f 3196if test x${is_cross_compiler} = xyes ; then
1c710c3c 3197 target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
6599da04
JM		 3198fi
3199
79e0604d
FXC		 3200# Special user-friendly check for native x86_64-linux build, if
3201# multilib is not explicitly enabled.
3202case "$target:$have_compiler:$host:$target:$enable_multilib" in
3203 x86_64-*linux*:yes:$build:$build:)
e640447c 3204 # Make sure we have a development environment that handles 32-bit
79e0604d
FXC		 3205 dev64=no
3206 echo "int main () { return 0; }" > conftest.c
3207 ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
3208 if test $? = 0 ; then
3209 if test -s conftest || test -s conftest.exe ; then
3210 dev64=yes
3211 fi
3212 fi
3213 rm -f conftest*
3214 if test x${dev64} != xyes ; then
e640447c 3215 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		 3216 fi
3217 ;;
3218esac
3219
dc683a3f
RW		 3220# Default to --enable-multilib.
3221if test x${enable_multilib} = x ; then
3fedb745 3222 target_configargs="--enable-multilib ${target_configargs}"
dc683a3f 3223fi
6599da04 3224
5d4a5ee6
JL		 3225# Pass --with-newlib if appropriate. Note that target_configdirs has
3226# changed from the earlier setting of with_newlib.
aeaa0f2f 3227if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
3fedb745 3228 target_configargs="--with-newlib ${target_configargs}"
5d4a5ee6
JL		 3229fi
3230
6b9eb62c
NN		 3231# Different target subdirs use different values of certain variables
3232# (notably CXX). Worse, multilibs use *lots* of different values.
3233# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
3234# it doesn't automatically accept command-line overrides of them.
3235# This means it's not safe for target subdirs to share a cache file,
3236# which is disgusting, but there you have it. Hopefully this can be
3237# fixed in future. It's still worthwhile to use a cache file for each
3238# directory. I think.
3239
bebcd931
MS		 3240# Pass the appropriate --build, --host, --target and --cache-file arguments.
3241# We need to pass --target, as newer autoconf's requires consistency
3242# for target_alias and gcc doesn't manage it consistently.
e69bf64b 3243target_configargs="--cache-file=./config.cache ${target_configargs}"
e490616e 3244
b87487b6 3245FLAGS_FOR_TARGET=
bb654703 3246case " $target_configdirs " in
7965440a 3247 *" newlib "*)
3fedb745 3248 case " $target_configargs " in
7965440a 3249 *" --with-newlib "*)
b87487b6 3250 case "$target" in
5d571eaa 3251 *-cygwin*)
443e6238 3252 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
5d571eaa 3253 ;;
b87487b6
AO		 3254 esac
3255
afd7db25 3256 # If we're not building GCC, don't discard standard headers.
ef40bc65 3257 if test -d ${srcdir}/gcc; then
d4eb109c 3258 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
afd7db25
AO		 3259
3260 if test "${build}" != "${host}"; then
3261 # On Canadian crosses, CC_FOR_TARGET will have already been set
3262 # by `configure', so we won't have an opportunity to add -Bgcc/
3263 # to it. This is right: we don't want to search that directory
3264 # for binaries, but we want the header files in there, so add
3265 # them explicitly.
0463992b 3266 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
afd7db25
AO		 3267
3268 # Someone might think of using the pre-installed headers on
3269 # Canadian crosses, in case the installed compiler is not fully
3270 # compatible with the compiler being built. In this case, it
3271 # would be better to flag an error than risking having
3272 # incompatible object files being constructed. We can't
3273 # guarantee that an error will be flagged, but let's hope the
3274 # compiler will do it, when presented with incompatible header
3275 # files.
3276 fi
d4eb109c
AO		 3277 fi
3278
ab50d72b 3279 case "${target}-${is_cross_compiler}" in
f2a0e225 3280 i[[3456789]]86-*-linux*-no)
ab50d72b
DD		 3281 # Here host == target, so we don't need to build gcc,
3282 # so we don't want to discard standard headers.
3283 FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
ab50d72b
DD		 3284 ;;
3285 *)
3286 # If we're building newlib, use its generic headers last, but search
3287 # for any libc-related directories first (so make it the last -B
3288 # switch).
3289 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
c03353e2
RIL		 3290
3291 # If we're building libgloss, find the startup file, simulator library
3292 # and linker script.
3293 case " $target_configdirs " in
3294 *" libgloss "*)
3295 # Look for startup file, simulator library and maybe linker script.
3296 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
3297 # Look for libnosys.a in case the target needs it.
3298 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
3299 # Most targets have the linker script in the source directory.
3300 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
3301 ;;
3302 esac
ab50d72b
DD		 3303 ;;
3304 esac
b87487b6 3305 ;;
7965440a
AO		 3306 esac
3307 ;;
b87487b6 3308esac
5d571eaa 3309
b91f0a41 3310case "$target" in
5d571eaa
OS		 3311 x86_64-*mingw* | *-w64-mingw*)
3312 # MinGW-w64 does not use newlib, nor does it use winsup. It may,
3313 # however, use a symlink named 'mingw' in ${prefix} .
3314 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
3315 ;;
3316 *-mingw*)
3317 # MinGW can't be handled as Cygwin above since it does not use newlib.
3318 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
3319 ;;
b91f0a41 3320esac
d4eb109c 3321
6691a79e
ME		 3322# Allow the user to override the flags for
3323# our build compiler if desired.
f019adc1
MF		 3324if test x"${build}" = x"${host}" ; then
3325 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
3326 CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
3327 LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
3328fi
6691a79e 3329
d4eb109c
AO		 3330# On Canadian crosses, we'll be searching the right directories for
3331# the previously-installed cross compiler, so don't bother to add
3332# flags for directories within the install tree of the compiler
3333# being built; programs in there won't even run.
ef40bc65 3334if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
b87487b6 3335 # Search for pre-installed headers if nothing else fits.
9124bc53 3336 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
b87487b6 3337fi
d4eb109c 3338
bb654703 3339if test "x${use_gnu_ld}" = x &&
55380b08 3340 echo " ${configdirs} " | grep " ld " > /dev/null ; then
b87487b6 3341 # Arrange for us to find uninstalled linker scripts.
215c351a 3342 FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
b87487b6
AO		 3343fi
3344
e88a2c09
DD		 3345# Search for other target-specific linker scripts and such.
3346case "${target}" in
3e19841a
PB		 3347 mep*)
3348 FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3349 ;;
e88a2c09
DD		 3350esac
3351
671aa708 3352# Makefile fragments.
7b61653a
PE		 3353for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3354do
3355 eval fragval=\$$frag
3356 if test $fragval != /dev/null; then
3357 eval $frag=${srcdir}/$fragval
3358 fi
3359done
671aa708
NN		 3360AC_SUBST_FILE(host_makefile_frag)
3361AC_SUBST_FILE(target_makefile_frag)
3362AC_SUBST_FILE(alphaieee_frag)
3363AC_SUBST_FILE(ospace_frag)
3364
3365# Miscellanea: directories, flags, etc.
671aa708 3366AC_SUBST(RPATH_ENVVAR)
d89f0ad6 3367AC_SUBST(GCC_SHLIB_SUBDIR)
671aa708
NN		 3368AC_SUBST(tooldir)
3369AC_SUBST(build_tooldir)
ef9db8d5 3370AC_SUBST(CONFIGURE_GDB_TK)
671aa708 3371AC_SUBST(GDB_TK)
ef9db8d5 3372AC_SUBST(INSTALL_GDB_TK)
671aa708
NN		 3373
3374# Build module lists & subconfigure args.
671aa708 3375AC_SUBST(build_configargs)
23f6b2f9 3376AC_SUBST(build_configdirs)
671aa708
NN		 3377
3378# Host module lists & subconfigure args.
3379AC_SUBST(host_configargs)
3380AC_SUBST(configdirs)
aae29963 3381AC_SUBST(target_configdirs)
671aa708
NN		 3382
3383# Target module lists & subconfigure args.
671aa708 3384AC_SUBST(target_configargs)
ee2312f3 3385
671aa708
NN		 3386
3387# Build tools.
0999159b
PB		 3388AC_SUBST(AR_FOR_BUILD)
3389AC_SUBST(AS_FOR_BUILD)
671aa708 3390AC_SUBST(CC_FOR_BUILD)
0999159b
PB		 3391AC_SUBST(CFLAGS_FOR_BUILD)
3392AC_SUBST(CXXFLAGS_FOR_BUILD)
3393AC_SUBST(CXX_FOR_BUILD)
3394AC_SUBST(DLLTOOL_FOR_BUILD)
0999159b 3395AC_SUBST(GFORTRAN_FOR_BUILD)
632e2a07 3396AC_SUBST(GOC_FOR_BUILD)
b4c522fa 3397AC_SUBST(GDC_FOR_BUILD)
0999159b
PB		 3398AC_SUBST(LDFLAGS_FOR_BUILD)
3399AC_SUBST(LD_FOR_BUILD)
3400AC_SUBST(NM_FOR_BUILD)
3401AC_SUBST(RANLIB_FOR_BUILD)
3402AC_SUBST(WINDMC_FOR_BUILD)
3403AC_SUBST(WINDRES_FOR_BUILD)
671aa708 3404
2abefe3d
PB		 3405# Generate default definitions for YACC, M4, LEX and other programs that run
3406# on the build machine. These are used if the Makefile can't locate these
3407# programs in objdir.
3408MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3409
3410AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3411case " $build_configdirs " in
3412 *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2abefe3d
PB		 3413esac
3414
3415AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3416case " $build_configdirs " in
3417 *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3418esac
3419
3420AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3421case " $build_configdirs " in
3422 *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3423esac
3424
3425AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3426case " $build_configdirs " in
3427 *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3428 *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3429esac
3430
3431AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3432case " $build_configdirs " in
3433 *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3434esac
3435
3436AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3437case " $build_configdirs " in
3438 *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3439 *)
3440changequote(,)
d18ff35a 3441 # For an installed makeinfo, we require it to be from texinfo 4.7 or
2abefe3d
PB		 3442 # higher, else we use the "missing" dummy.
3443 if ${MAKEINFO} --version \
d18ff35a 3444 | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
2abefe3d
PB		 3445 :
3446 else
3447 MAKEINFO="$MISSING makeinfo"
3448 fi
3449 ;;
3450changequote([,])
3451esac
3452
3453# FIXME: expect and dejagnu may become build tools?
3454
3455AC_CHECK_PROGS(EXPECT, expect, expect)
3456case " $configdirs " in
3457 *" expect "*)
3458 test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3459 ;;
3460esac
3461
3462AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3463case " $configdirs " in
3464 *" dejagnu "*)
c394e891 3465 test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2abefe3d
PB		 3466 ;;
3467esac
3468
3469
671aa708 3470# Host tools.
2693c0b0
PB		 3471NCN_STRICT_CHECK_TOOLS(AR, ar)
3472NCN_STRICT_CHECK_TOOLS(AS, as)
3473NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3474NCN_STRICT_CHECK_TOOLS(LD, ld)
2abefe3d 3475NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2693c0b0 3476NCN_STRICT_CHECK_TOOLS(NM, nm)
8927b7c0
RO		 3477NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3478NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
2693c0b0 3479NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
901119ae 3480NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
2693c0b0
PB		 3481NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3482NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
e4a9a572 3483NCN_STRICT_CHECK_TOOLS(OTOOL, otool)
e7a82751 3484NCN_STRICT_CHECK_TOOLS(READELF, readelf)
671aa708
NN		 3485AC_SUBST(CC)
3486AC_SUBST(CXX)
3487AC_SUBST(CFLAGS)
3488AC_SUBST(CXXFLAGS)
671aa708 3489
2abefe3d 3490# Target tools.
e8b05380 3491AC_ARG_WITH([build-time-tools],
33e39b66
AS		 3492 [AS_HELP_STRING([--with-build-time-tools=PATH],
3493 [use given path to find target tools during the build])],
e8b05380
PB		 3494 [case x"$withval" in
3495 x/*) ;;
3496 *)
3497 with_build_time_tools=
3498 AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3499 ;;
3500 esac],
3501 [with_build_time_tools=])
3502
2693c0b0
PB		 3503NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3504NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2693c0b0 3505NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2693c0b0 3506NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
632e2a07 3507NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
b4c522fa 3508NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc)
e8b05380
PB		 3509
3510ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3511ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3512ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3513ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3514ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3515ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
9bccfdf5 3516ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy)
e8b05380 3517ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
e4a9a572 3518ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool)
8927b7c0 3519ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
e7a82751 3520ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
e8b05380
PB		 3521ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3522ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
901119ae 3523ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
4de997d1 3524
2abefe3d
PB		 3525RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3526
3527GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3528GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3529GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
b3f122e0 3530dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
2abefe3d 3531GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2077db1b 3532 [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		 3533 c++)
3534GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2077db1b 3535 [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		 3536 c++)
3537GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3538GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2abefe3d
PB		 3539GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3540 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
632e2a07
ILT		 3541GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3542 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
b4c522fa
IB		 3543GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC,
3544 [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d)
2abefe3d
PB		 3545GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3546GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3547GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
ec8fd1c0 3548GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
2abefe3d 3549GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
e4a9a572 3550GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL)
2abefe3d 3551GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
e7a82751 3552GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
455c8f48 3553GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
2abefe3d 3554GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
901119ae 3555GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
4de997d1 3556
2abefe3d 3557AC_SUBST(FLAGS_FOR_TARGET)
4de997d1 3558AC_SUBST(RAW_CXX_FOR_TARGET)
be912515 3559
671aa708
NN		 3560# Certain tools may need extra flags.
3561AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3562RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3563NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
6599da04 3564
2abefe3d
PB		 3565# When building target libraries, except in a Canadian cross, we use
3566# the same toolchain as the compiler we just built.
3567COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3568COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3569COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3570if test $host = $build; then
3571 case " $configdirs " in
3572 *" gcc "*)
3573 COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3574 COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3575 COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3576 ;;
3577 esac
3578fi
3579
3580AC_SUBST(COMPILER_AS_FOR_TARGET)
3581AC_SUBST(COMPILER_LD_FOR_TARGET)
3582AC_SUBST(COMPILER_NM_FOR_TARGET)
3583
ee03dc5e
AO		 3584AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3585AC_ARG_ENABLE(maintainer-mode,
33e39b66
AS		 3586[AS_HELP_STRING([--enable-maintainer-mode],
3587 [enable make rules and dependencies not useful
3588 (and sometimes confusing) to the casual installer])],
ee03dc5e
AO		 3589 USE_MAINTAINER_MODE=$enableval,
3590 USE_MAINTAINER_MODE=no)
3591AC_MSG_RESULT($USE_MAINTAINER_MODE)
3592AC_SUBST(MAINTAINER_MODE_TRUE)
3593AC_SUBST(MAINTAINER_MODE_FALSE)
3594if test "$USE_MAINTAINER_MODE" = yes; then
3595 MAINTAINER_MODE_TRUE=
3596 MAINTAINER_MODE_FALSE='#'
3597else
3598 MAINTAINER_MODE_TRUE='#'
3599 MAINTAINER_MODE_FALSE=
3600fi
3601MAINT=$MAINTAINER_MODE_TRUE
3602AC_SUBST(MAINT)dnl
3603
2805b53a
NN		 3604# ---------------------
3605# GCC bootstrap support
3606# ---------------------
3607
3608# Stage specific cflags for build.
3609stage1_cflags="-g"
3610case $build in
3611 vax-*-*)
3612 case ${GCC} in
3613 yes) stage1_cflags="-g -Wa,-J" ;;
3614 *) stage1_cflags="-g -J" ;;
3615 esac ;;
2805b53a 3616esac
0b50988a 3617
2805b53a
NN		 3618AC_SUBST(stage1_cflags)
3619
8efea775
PB		 3620# Enable --enable-checking in stage1 of the compiler.
3621AC_ARG_ENABLE(stage1-checking,
33e39b66
AS		 3622[AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3623 [choose additional checking for stage1 of the compiler])],
8efea775 3624[stage1_checking=--enable-checking=${enable_stage1_checking}],
e643dc23 3625[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
c10b5ea0
JJ		 3626 # For --disable-checking or implicit --enable-checking=release, avoid
3627 # setting --enable-checking=gc in the default stage1 checking for LTO
3628 # bootstraps. See PR62077.
c10b5ea0
JJ		 3629 case $BUILD_CONFIG in
3630 *lto*)
7db11a5a
JJ		 3631 stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;;
3632 *)
3633 stage1_checking=--enable-checking=yes,types;;
c10b5ea0 3634 esac
7db11a5a
JJ		 3635 if test "x$enable_checking" = x && \
3636 test -d ${srcdir}/gcc && \
3637 test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then
c100769b 3638 stage1_checking=--enable-checking=yes,types,extra
7db11a5a 3639 fi
8efea775 3640else
e643dc23 3641 stage1_checking=--enable-checking=$enable_checking,types
8efea775
PB		 3642fi])
3643AC_SUBST(stage1_checking)
3644
2805b53a 3645# Enable -Werror in bootstrap stage2 and later.
2805b53a 3646AC_ARG_ENABLE(werror,
33e39b66 3647[AS_HELP_STRING([--enable-werror],
afd88efc
ML		 3648 [enable -Werror in bootstrap stage2 and later])],
3649[
09a9c095
NN		 3650case ${enable_werror} in
3651 yes) stage2_werror_flag="--enable-werror-always" ;;
3652 *) stage2_werror_flag="" ;;
2805b53a 3653esac
afd88efc
ML		 3654],
3655[
01c712cb
ML		 3656if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3657 case $BUILD_CONFIG in
3658 bootstrap-debug)
3659 stage2_werror_flag="--enable-werror-always" ;;
3660 "")
3661 stage2_werror_flag="--enable-werror-always" ;;
3662 esac
3663fi
afd88efc 3664])
01c712cb 3665
09a9c095 3666AC_SUBST(stage2_werror_flag)
2805b53a 3667
f2689b09
SE		 3668# Specify what files to not compare during bootstrap.
3669
3670compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3671case "$target" in
3672 hppa*64*-*-hpux*) ;;
4f943869
MK		 3673 hppa*-*-hpux*) compare_exclusions="$compare_exclusions | */libgcc/lib2funcs* | gcc/function-tests.o" ;;
3674 powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;;
f2689b09
SE		 3675esac
3676AC_SUBST(compare_exclusions)
3677
3e54529c
RW		 3678AC_CONFIG_FILES([Makefile],
3679 [sed "$extrasub_build" Makefile |
3680 sed "$extrasub_host" |
3681 sed "$extrasub_target" > mf$$
3682 mv -f mf$$ Makefile],
3683 [extrasub_build="$extrasub_build"
3684 extrasub_host="$extrasub_host"
3685 extrasub_target="$extrasub_target"])
3686AC_OUTPUT
GNU Compiler Collection
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